From 9577f212f8a6e55f3ee5d50f4b50e652abf331e0 Mon Sep 17 00:00:00 2001 From: Chris McCarthy Date: Thu, 1 Feb 2024 22:19:55 +0000 Subject: [PATCH 01/39] #2248 - Initial crack at getting ARP into a Service. Lots of refactoring has been done. It's a mess at the minute, but I can successfully send an ARP request so committing as a successful point in time --- src/primaite/simulator/__init__.py | 4 +- .../simulator/network/hardware/base.py | 107 +++++++--- .../network/hardware/nodes/router.py | 88 ++++---- .../network/transmission/data_link_layer.py | 4 +- .../simulator/system/core/session_manager.py | 127 ++++++----- .../simulator/system/core/software_manager.py | 12 +- .../simulator/system/services/arp/__init__.py | 0 .../simulator/system/services/arp/arp.py | 201 ++++++++++++++++++ .../simulator/system/services/arp/host_arp.py | 95 +++++++++ src/primaite/simulator/system/software.py | 3 + 10 files changed, 503 insertions(+), 138 deletions(-) create mode 100644 src/primaite/simulator/system/services/arp/__init__.py create mode 100644 src/primaite/simulator/system/services/arp/arp.py create mode 100644 src/primaite/simulator/system/services/arp/host_arp.py diff --git a/src/primaite/simulator/__init__.py b/src/primaite/simulator/__init__.py index aebd77cf..97bcd57b 100644 --- a/src/primaite/simulator/__init__.py +++ b/src/primaite/simulator/__init__.py @@ -12,8 +12,8 @@ class _SimOutput: self._path: Path = ( _PRIMAITE_ROOT.parent.parent / "simulation_output" / datetime.now().strftime("%Y-%m-%d_%H-%M-%S") ) - self.save_pcap_logs: bool = False - self.save_sys_logs: bool = False + self.save_pcap_logs: bool = True + self.save_sys_logs: bool = True @property def path(self) -> Path: diff --git a/src/primaite/simulator/network/hardware/base.py b/src/primaite/simulator/network/hardware/base.py index 9becde59..4537adc2 100644 --- a/src/primaite/simulator/network/hardware/base.py +++ b/src/primaite/simulator/network/hardware/base.py @@ -18,7 +18,7 @@ from primaite.simulator.network.hardware.node_operating_state import NodeOperati from primaite.simulator.network.protocols.arp import ARPEntry, ARPPacket from primaite.simulator.network.transmission.data_link_layer import EthernetHeader, Frame from primaite.simulator.network.transmission.network_layer import ICMPPacket, ICMPType, IPPacket, IPProtocol -from primaite.simulator.network.transmission.transport_layer import Port, TCPHeader +from primaite.simulator.network.transmission.transport_layer import Port, TCPHeader, UDPHeader from primaite.simulator.system.applications.application import Application from primaite.simulator.system.core.packet_capture import PacketCapture from primaite.simulator.system.core.session_manager import SessionManager @@ -617,6 +617,7 @@ class ARPCache: self.sys_log: "SysLog" = sys_log self.arp: Dict[IPv4Address, ARPEntry] = {} self.nics: Dict[str, "NIC"] = {} + self.node = None def show(self, markdown: bool = False): """Prints a table of ARC Cache.""" @@ -669,6 +670,36 @@ class ARPCache: if ip_address in self.arp: del self.arp[ip_address] + def get_default_gateway_mac_address(self) -> Optional[str]: + if self.arp.node.default_gateway: + return self.get_arp_cache_mac_address(self.arp.node.default_gateway) + + def get_default_gateway_nic(self) -> Optional[NIC]: + if self.arp.node.default_gateway: + return self.get_arp_cache_nic(self.arp.node.default_gateway) + + def _get_arp_cache_mac_address( + self, ip_address: IPv4Address, is_reattempt: bool = False, is_default_gateway_attempt: bool = False + ) -> Optional[str]: + arp_entry = self.arp.get(ip_address) + + if arp_entry: + return arp_entry.mac_address + else: + if not is_reattempt: + self.send_arp_request(ip_address) + return self._get_arp_cache_mac_address( + ip_address=ip_address, is_reattempt=True, is_default_gateway_attempt=is_default_gateway_attempt + ) + else: + if self.node.default_gateway: + if not is_default_gateway_attempt: + self.send_arp_request(self.node.default_gateway) + return self._get_arp_cache_mac_address( + ip_address=self.node.default_gateway, is_reattempt=True, is_default_gateway_attempt=True + ) + return None + def get_arp_cache_mac_address(self, ip_address: IPv4Address) -> Optional[str]: """ Get the MAC address associated with an IP address. @@ -676,9 +707,29 @@ class ARPCache: :param ip_address: The IP address to look up in the cache. :return: The MAC address associated with the IP address, or None if not found. """ + return self._get_arp_cache_mac_address(ip_address) + + def _get_arp_cache_nic( + self, ip_address: IPv4Address, is_reattempt: bool = False, is_default_gateway_attempt: bool = False + ) -> Optional[NIC]: arp_entry = self.arp.get(ip_address) + if arp_entry: - return arp_entry.mac_address + return self.nics[arp_entry.nic_uuid] + else: + if not is_reattempt: + self.send_arp_request(ip_address) + return self._get_arp_cache_nic( + ip_address=ip_address, is_reattempt=True, is_default_gateway_attempt=is_default_gateway_attempt + ) + else: + if self.node.default_gateway: + if not is_default_gateway_attempt: + self.send_arp_request(self.node.default_gateway) + return self._get_arp_cache_nic( + ip_address=self.node.default_gateway, is_reattempt=True, is_default_gateway_attempt=True + ) + return None def get_arp_cache_nic(self, ip_address: IPv4Address) -> Optional[NIC]: """ @@ -687,10 +738,7 @@ class ARPCache: :param ip_address: The IP address to look up in the cache. :return: The NIC associated with the IP address, or None if not found. """ - arp_entry = self.arp.get(ip_address) - - if arp_entry: - return self.nics[arp_entry.nic_uuid] + return self._get_arp_cache_nic(ip_address) def clear_arp_cache(self): """Clear the entire ARP cache, removing all stored entries.""" @@ -721,12 +769,11 @@ class ARPCache: use_nic = False if nic.enabled and use_nic: self.sys_log.info(f"Sending ARP request from NIC {nic} for ip {target_ip_address}") - tcp_header = TCPHeader(src_port=Port.ARP, dst_port=Port.ARP) + udp_header = UDPHeader(src_port=Port.ARP, dst_port=Port.ARP) # Network Layer ip_packet = IPPacket( - src_ip_address=nic.ip_address, - dst_ip_address=target_ip_address, + src_ip_address=nic.ip_address, dst_ip_address=target_ip_address, protocol=IPProtocol.UDP ) # Data Link Layer ethernet_header = EthernetHeader(src_mac_addr=nic.mac_address, dst_mac_addr="ff:ff:ff:ff:ff:ff") @@ -735,7 +782,7 @@ class ARPCache: sender_mac_addr=nic.mac_address, target_ip_address=target_ip_address, ) - frame = Frame(ethernet=ethernet_header, ip=ip_packet, tcp=tcp_header, arp=arp_packet) + frame = Frame(ethernet=ethernet_header, ip=ip_packet, udp=udp_header, payload=arp_packet) nic.send_frame(frame) def send_arp_reply(self, arp_reply: ARPPacket, from_nic: NIC): @@ -888,25 +935,14 @@ class ICMP: was not found in the ARP cache. """ nic = self.arp.get_arp_cache_nic(target_ip_address) - # TODO: Eventually this ARP request needs to be done elsewhere. It's not the responsibility of the - # ping function to handle ARP lookups - # Already tried once and cannot get ARP entry, stop trying - if sequence == -1: - if not nic: - return 4, None - else: - sequence = 0 - - # No existing ARP entry if not nic: - self.sys_log.info(f"No entry in ARP cache for {target_ip_address}") - self.arp.send_arp_request(target_ip_address) - return -1, None + return pings, None # ARP entry exists sequence += 1 target_mac_address = self.arp.get_arp_cache_mac_address(target_ip_address) + src_nic = self.arp.get_arp_cache_nic(target_ip_address) tcp_header = TCPHeader(src_port=Port.ARP, dst_port=Port.ARP) @@ -1026,6 +1062,7 @@ class Node(SimComponent): ) super().__init__(**kwargs) self.arp.nics = self.nics + self.arp.node = self self.session_manager.software_manager = self.software_manager self._install_system_software() self.set_original_state() @@ -1407,7 +1444,9 @@ class Node(SimComponent): self.sys_log.info("Pinging loopback address") return any(nic.enabled for nic in self.nics.values()) if self.operating_state == NodeOperatingState.ON: - self.sys_log.info(f"Pinging {target_ip_address}:") + output = f"Pinging {target_ip_address}:" + self.sys_log.info(output) + print(output) sequence, identifier = 0, None while sequence < pings: sequence, identifier = self.icmp.ping(target_ip_address, sequence, identifier, pings) @@ -1417,12 +1456,14 @@ class Node(SimComponent): self.icmp.request_replies.pop(identifier) else: request_replies = 0 - self.sys_log.info( + output = ( f"Ping statistics for {target_ip_address}: " f"Packets: Sent = {pings}, " f"Received = {request_replies}, " f"Lost = {pings - request_replies} ({(pings - request_replies) / pings * 100}% loss)" ) + self.sys_log.info(output) + print(output) return passed return False @@ -1456,12 +1497,18 @@ class Node(SimComponent): self.icmp.process_icmp(frame=frame, from_nic=from_nic) return # Check if the destination port is open on the Node - if frame.tcp.dst_port in self.software_manager.get_open_ports(): + dst_port = None + if frame.tcp: + dst_port = frame.tcp.dst_port + elif frame.udp: + dst_port = frame.udp.dst_port + if dst_port in self.software_manager.get_open_ports(): # accept thr frame as the port is open - if frame.tcp.src_port == Port.ARP: - self.arp.process_arp_packet(from_nic=from_nic, arp_packet=frame.arp) - else: - self.session_manager.receive_frame(frame) + self.session_manager.receive_frame(frame, from_nic) + # if frame.tcp.src_port == Port.ARP: + # self.arp.process_arp_packet(from_nic=from_nic, arp_packet=frame.arp) + # else: + # self.session_manager.receive_frame(frame) else: # denied as port closed self.sys_log.info(f"Ignoring frame for port {frame.tcp.dst_port.value} from {frame.ip.src_ip_address}") diff --git a/src/primaite/simulator/network/hardware/nodes/router.py b/src/primaite/simulator/network/hardware/nodes/router.py index 845975ee..ed9a30d4 100644 --- a/src/primaite/simulator/network/hardware/nodes/router.py +++ b/src/primaite/simulator/network/hardware/nodes/router.py @@ -566,33 +566,32 @@ class RouterARPCache(ARPCache): # ARP Reply if not arp_packet.request: - for nic in self.router.nics.values(): - if arp_packet.target_ip_address == nic.ip_address: - # reply to the Router specifically - self.sys_log.info( - f"Received ARP response for {arp_packet.sender_ip_address} " - f"from {arp_packet.sender_mac_addr} via NIC {from_nic}" - ) - self.add_arp_cache_entry( - ip_address=arp_packet.sender_ip_address, - mac_address=arp_packet.sender_mac_addr, - nic=from_nic, - ) - return - - # Reply for a connected requested - nic = self.get_arp_cache_nic(arp_packet.target_ip_address) - if nic: + if arp_packet.target_ip_address == from_nic.ip_address: + # reply to the Router specifically self.sys_log.info( - f"Forwarding arp reply for {arp_packet.target_ip_address}, from {arp_packet.sender_ip_address}" + f"Received ARP response for {arp_packet.sender_ip_address} " + f"from {arp_packet.sender_mac_addr} via NIC {from_nic}" ) - arp_packet.sender_mac_addr = nic.mac_address - frame.decrement_ttl() - if frame.ip and frame.ip.ttl < 1: - self.sys_log.info("Frame discarded as TTL limit reached") - return - nic.send_frame(frame) - return + self.add_arp_cache_entry( + ip_address=arp_packet.sender_ip_address, + mac_address=arp_packet.sender_mac_addr, + nic=from_nic, + ) + return + + # # Reply for a connected requested + # nic = self.get_arp_cache_nic(arp_packet.target_ip_address) + # if nic: + # self.sys_log.info( + # f"Forwarding arp reply for {arp_packet.target_ip_address}, from {arp_packet.sender_ip_address}" + # ) + # arp_packet.sender_mac_addr = nic.mac_address + # frame.decrement_ttl() + # if frame.ip and frame.ip.ttl < 1: + # self.sys_log.info("Frame discarded as TTL limit reached") + # return + # nic.send_frame(frame) + # return # ARP Request self.sys_log.info( @@ -606,28 +605,27 @@ class RouterARPCache(ARPCache): # If the target IP matches one of the router's NICs for nic in self.nics.values(): - if arp_packet.target_ip_address in nic.ip_network: - # if nic.enabled and nic.ip_address == arp_packet.target_ip_address: + if nic.enabled and nic.ip_address == arp_packet.target_ip_address: arp_reply = arp_packet.generate_reply(from_nic.mac_address) self.send_arp_reply(arp_reply, from_nic) return - # Check Route Table - route = route_table.find_best_route(arp_packet.target_ip_address) - if route: - nic = self.get_arp_cache_nic(route.next_hop_ip_address) - - if not nic: - if not is_reattempt: - self.send_arp_request(route.next_hop_ip_address, ignore_networks=[frame.ip.src_ip_address]) - return self.process_arp_packet(from_nic, frame, route_table, is_reattempt=True) - else: - self.sys_log.info("Ignoring ARP request as destination unavailable/No ARP entry found") - return - else: - arp_reply = arp_packet.generate_reply(from_nic.mac_address) - self.send_arp_reply(arp_reply, from_nic) - return + # # Check Route Table + # route = route_table.find_best_route(arp_packet.target_ip_address) + # if route and route != self.router.route_table.default_route: + # nic = self.get_arp_cache_nic(route.next_hop_ip_address) + # + # if not nic: + # if not is_reattempt: + # self.send_arp_request(route.next_hop_ip_address, ignore_networks=[frame.ip.src_ip_address]) + # return self.process_arp_packet(from_nic, frame, route_table, is_reattempt=True) + # else: + # self.sys_log.info("Ignoring ARP request as destination unavailable/No ARP entry found") + # return + # else: + # arp_reply = arp_packet.generate_reply(from_nic.mac_address) + # self.send_arp_reply(arp_reply, from_nic) + # return class RouterICMP(ICMP): @@ -949,13 +947,13 @@ class Router(Node): at_port = self._get_port_of_nic(from_nic) self.sys_log.info(f"Frame blocked at port {at_port} by rule {rule}") return - if not self.arp.get_arp_cache_nic(src_ip_address): - self.arp.add_arp_cache_entry(src_ip_address, frame.ethernet.src_mac_addr, from_nic) + self.arp.add_arp_cache_entry(src_ip_address, frame.ethernet.src_mac_addr, from_nic) if frame.ip.protocol == IPProtocol.ICMP: self.icmp.process_icmp(frame=frame, from_nic=from_nic) else: if src_port == Port.ARP: self.arp.process_arp_packet(from_nic=from_nic, frame=frame, route_table=self.route_table) + return else: # All other traffic process_frame = True diff --git a/src/primaite/simulator/network/transmission/data_link_layer.py b/src/primaite/simulator/network/transmission/data_link_layer.py index fa823a60..6a4e24d8 100644 --- a/src/primaite/simulator/network/transmission/data_link_layer.py +++ b/src/primaite/simulator/network/transmission/data_link_layer.py @@ -73,7 +73,7 @@ class Frame(BaseModel): msg = "Cannot build a Frame using the TCP IP Protocol without a TCPHeader" _LOGGER.error(msg) raise ValueError(msg) - if kwargs["ip"].protocol == IPProtocol.UDP and not kwargs.get("UDP"): + if kwargs["ip"].protocol == IPProtocol.UDP and not kwargs.get("udp"): msg = "Cannot build a Frame using the UDP IP Protocol without a UDPHeader" _LOGGER.error(msg) raise ValueError(msg) @@ -95,8 +95,6 @@ class Frame(BaseModel): "UDP header." icmp: Optional[ICMPPacket] = None "ICMP header." - arp: Optional[ARPPacket] = None - "ARP packet." primaite: PrimaiteHeader "PrimAITE header." payload: Optional[Any] = None diff --git a/src/primaite/simulator/system/core/session_manager.py b/src/primaite/simulator/system/core/session_manager.py index a95846a3..8c305032 100644 --- a/src/primaite/simulator/system/core/session_manager.py +++ b/src/primaite/simulator/system/core/session_manager.py @@ -8,10 +8,10 @@ from prettytable import MARKDOWN, PrettyTable from primaite.simulator.core import SimComponent from primaite.simulator.network.transmission.data_link_layer import EthernetHeader, Frame from primaite.simulator.network.transmission.network_layer import IPPacket, IPProtocol -from primaite.simulator.network.transmission.transport_layer import Port, TCPHeader +from primaite.simulator.network.transmission.transport_layer import Port, TCPHeader, UDPHeader if TYPE_CHECKING: - from primaite.simulator.network.hardware.base import ARPCache + from primaite.simulator.network.hardware.base import ARPCache, NIC from primaite.simulator.system.core.software_manager import SoftwareManager from primaite.simulator.system.core.sys_log import SysLog @@ -138,37 +138,19 @@ class SessionManager: dst_port = None return protocol, with_ip_address, src_port, dst_port - def receive_payload_from_software_manager( - self, - payload: Any, - dst_ip_address: Optional[Union[IPv4Address, IPv4Network]] = None, - dst_port: Optional[Port] = None, - session_id: Optional[str] = None, - is_reattempt: bool = False, - ) -> Union[Any, None]: - """ - Receive a payload from the SoftwareManager and send it to the appropriate NIC for transmission. - - This method supports both unicast and Layer 3 broadcast transmissions. If `dst_ip_address` is an - IPv4Network, a broadcast is initiated. For unicast, the destination MAC address is resolved via ARP. - A new session is established if `session_id` is not provided, and an existing session is used otherwise. - - :param payload: The payload to be sent. - :param dst_ip_address: The destination IP address or network for broadcast. Optional. - :param dst_port: The destination port for the TCP packet. Optional. - :param session_id: The Session ID from which the payload originates. Optional. - :param is_reattempt: Flag to indicate if this is a reattempt after an ARP request. Default is False. - :return: The outcome of sending the frame, or None if sending was unsuccessful. - """ + def resolve_outbound_transmission_details( + self, dst_ip_address: Optional[Union[IPv4Address, IPv4Network]] = None, session_id: Optional[str] = None + ) -> Tuple[Optional["NIC"], Optional[str], Optional[IPProtocol], bool]: is_broadcast = False outbound_nic = None dst_mac_address = None + protocol = None # Use session details if session_id is provided if session_id: session = self.sessions_by_uuid[session_id] dst_ip_address = session.with_ip_address - dst_port = session.dst_port + protocol = session.protocol # Determine if the payload is for broadcast or unicast @@ -182,47 +164,81 @@ class SessionManager: if dst_ip_address in nic.ip_network and nic.enabled: dst_mac_address = "ff:ff:ff:ff:ff:ff" outbound_nic = nic + break else: # Resolve MAC address for unicast transmission - dst_mac_address = self.arp_cache.get_arp_cache_mac_address(dst_ip_address) + use_default_gateway = True + for nic in self.arp_cache.nics.values(): + if dst_ip_address in nic.ip_network and nic.enabled: + dst_mac_address = self.arp_cache.get_arp_cache_mac_address(dst_ip_address) + break - # Resolve outbound NIC for unicast transmission - if dst_mac_address: + if dst_ip_address: + use_default_gateway = False outbound_nic = self.arp_cache.get_arp_cache_nic(dst_ip_address) - # If MAC address not found, initiate ARP request - else: - if not is_reattempt: - self.arp_cache.send_arp_request(dst_ip_address) - # Reattempt payload transmission after ARP request - return self.receive_payload_from_software_manager( - payload=payload, - dst_ip_address=dst_ip_address, - dst_port=dst_port, - session_id=session_id, - is_reattempt=True, - ) - else: - # Return None if reattempt fails - return + if use_default_gateway: + dst_mac_address = self.arp_cache.get_default_gateway_mac_address() + outbound_nic = self.arp_cache.get_default_gateway_nic() + return outbound_nic, dst_mac_address, protocol, is_broadcast + + def receive_payload_from_software_manager( + self, + payload: Any, + dst_ip_address: Optional[Union[IPv4Address, IPv4Network]] = None, + dst_port: Optional[Port] = None, + session_id: Optional[str] = None, + ip_protocol: IPProtocol = IPProtocol.TCP, + ) -> Union[Any, None]: + """ + Receive a payload from the SoftwareManager and send it to the appropriate NIC for transmission. + + This method supports both unicast and Layer 3 broadcast transmissions. If `dst_ip_address` is an + IPv4Network, a broadcast is initiated. For unicast, the destination MAC address is resolved via ARP. + A new session is established if `session_id` is not provided, and an existing session is used otherwise. + + :param payload: The payload to be sent. + :param dst_ip_address: The destination IP address or network for broadcast. Optional. + :param dst_port: The destination port for the TCP packet. Optional. + :param session_id: The Session ID from which the payload originates. Optional. + :return: The outcome of sending the frame, or None if sending was unsuccessful. + """ + print(ip_protocol) + outbound_nic, dst_mac_address, protocol, is_broadcast = self.resolve_outbound_transmission_details( + dst_ip_address=dst_ip_address, session_id=session_id + ) + + if protocol: + ip_protocol = protocol + + print(ip_protocol) # Check if outbound NIC and destination MAC address are resolved if not outbound_nic or not dst_mac_address: return False + tcp_header = None + udp_header = None + if ip_protocol == IPProtocol.TCP: + TCPHeader( + src_port=dst_port, + dst_port=dst_port, + ) + elif ip_protocol == IPProtocol: + udp_header = UDPHeader( + src_port=dst_port, + dst_port=dst_port, + ) + # Construct the frame for transmission frame = Frame( ethernet=EthernetHeader(src_mac_addr=outbound_nic.mac_address, dst_mac_addr=dst_mac_address), - ip=IPPacket( - src_ip_address=outbound_nic.ip_address, - dst_ip_address=dst_ip_address, - ), - tcp=TCPHeader( - src_port=dst_port, - dst_port=dst_port, - ), + ip=IPPacket(src_ip_address=outbound_nic.ip_address, dst_ip_address=dst_ip_address, ip_protocol=ip_protocol), + tcp=tcp_header, + udp_header=udp_header, payload=payload, ) + print(frame) # Manage session for unicast transmission if not (is_broadcast and session_id): @@ -237,7 +253,7 @@ class SessionManager: # Send the frame through the NIC return outbound_nic.send_frame(frame) - def receive_frame(self, frame: Frame): + def receive_frame(self, frame: Frame, from_nic: NIC): """ Receive a Frame. @@ -253,8 +269,13 @@ class SessionManager: session = Session.from_session_key(session_key) self.sessions_by_key[session_key] = session self.sessions_by_uuid[session.uuid] = session + dst_port = None + if frame.tcp: + dst_port = frame.tcp.dst_port + elif frame.udp: + dst_port = frame.udp.dst_port self.software_manager.receive_payload_from_session_manager( - payload=frame.payload, port=frame.tcp.dst_port, protocol=frame.ip.protocol, session_id=session.uuid + payload=frame.payload, port=dst_port, protocol=frame.ip.protocol, session_id=session.uuid, from_nic=from_nic ) def show(self, markdown: bool = False): diff --git a/src/primaite/simulator/system/core/software_manager.py b/src/primaite/simulator/system/core/software_manager.py index 95948a1e..e1ec6698 100644 --- a/src/primaite/simulator/system/core/software_manager.py +++ b/src/primaite/simulator/system/core/software_manager.py @@ -14,7 +14,7 @@ from primaite.simulator.system.software import IOSoftware if TYPE_CHECKING: from primaite.simulator.system.core.session_manager import SessionManager from primaite.simulator.system.core.sys_log import SysLog - from primaite.simulator.network.hardware.base import Node + from primaite.simulator.network.hardware.base import Node, NIC from typing import Type, TypeVar @@ -52,11 +52,10 @@ class SoftwareManager: :return: A list of all open ports on the Node. """ - open_ports = [Port.ARP] + open_ports = [] for software in self.port_protocol_mapping.values(): if software.operating_state in {ApplicationOperatingState.RUNNING, ServiceOperatingState.RUNNING}: open_ports.append(software.port) - open_ports.sort(key=lambda port: port.value) return open_ports def install(self, software_class: Type[IOSoftwareClass]): @@ -132,6 +131,7 @@ class SoftwareManager: payload: Any, dest_ip_address: Optional[Union[IPv4Address, IPv4Network]] = None, dest_port: Optional[Port] = None, + ip_protocol: IPProtocol = IPProtocol.TCP, session_id: Optional[str] = None, ) -> bool: """ @@ -154,7 +154,9 @@ class SoftwareManager: session_id=session_id, ) - def receive_payload_from_session_manager(self, payload: Any, port: Port, protocol: IPProtocol, session_id: str): + def receive_payload_from_session_manager( + self, payload: Any, port: Port, protocol: IPProtocol, session_id: str, from_nic: "NIC" + ): """ Receive a payload from the SessionManager and forward it to the corresponding service or application. @@ -163,7 +165,7 @@ class SoftwareManager: """ receiver: Optional[Union[Service, Application]] = self.port_protocol_mapping.get((port, protocol), None) if receiver: - receiver.receive(payload=payload, session_id=session_id) + receiver.receive(payload=payload, session_id=session_id, from_nic=from_nic) else: self.sys_log.error(f"No service or application found for port {port} and protocol {protocol}") pass diff --git a/src/primaite/simulator/system/services/arp/__init__.py b/src/primaite/simulator/system/services/arp/__init__.py new file mode 100644 index 00000000..e69de29b diff --git a/src/primaite/simulator/system/services/arp/arp.py b/src/primaite/simulator/system/services/arp/arp.py new file mode 100644 index 00000000..46bc151d --- /dev/null +++ b/src/primaite/simulator/system/services/arp/arp.py @@ -0,0 +1,201 @@ +from __future__ import annotations + +from abc import abstractmethod +from ipaddress import IPv4Address +from typing import Any, Dict, Optional, Tuple, Union + +from prettytable import MARKDOWN, PrettyTable +from pydantic import BaseModel + +from primaite.simulator.network.hardware.base import NIC +from primaite.simulator.network.protocols.arp import ARPEntry, ARPPacket +from primaite.simulator.network.protocols.packet import DataPacket +from primaite.simulator.network.transmission.data_link_layer import EthernetHeader, Frame +from primaite.simulator.network.transmission.network_layer import IPPacket, IPProtocol +from primaite.simulator.network.transmission.transport_layer import Port, TCPHeader, UDPHeader +from primaite.simulator.system.services.service import Service + + +class ARP(Service): + arp: Dict[IPv4Address, ARPEntry] = {} + + def __init__(self, **kwargs): + kwargs["name"] = "ARP" + kwargs["port"] = Port.ARP + kwargs["protocol"] = IPProtocol.UDP + super().__init__(**kwargs) + + def describe_state(self) -> Dict: + pass + + def show(self, markdown: bool = False): + """Prints a table of ARC Cache.""" + table = PrettyTable(["IP Address", "MAC Address", "Via"]) + if markdown: + table.set_style(MARKDOWN) + table.align = "l" + table.title = f"{self.sys_log.hostname} ARP Cache" + for ip, arp in self.arp.items(): + table.add_row( + [ + str(ip), + arp.mac_address, + self.software_manager.node.nics[arp.nic_uuid].mac_address, + ] + ) + print(table) + + def clear(self): + """Clears the arp cache.""" + self.arp.clear() + + def add_arp_cache_entry(self, ip_address: IPv4Address, mac_address: str, nic: NIC, override: bool = False): + """ + Add an ARP entry to the cache. + + If an entry for the given IP address already exists, the entry is only updated if the `override` parameter is + set to True. + + :param ip_address: The IP address to be added to the cache. + :param mac_address: The MAC address associated with the IP address. + :param nic: The NIC through which the NIC with the IP address is reachable. + :param override: If True, an existing entry for the IP address will be overridden. Default is False. + """ + for _nic in self.software_manager.node.nics.values(): + if _nic.ip_address == ip_address: + return + if override or not self.arp.get(ip_address): + self.sys_log.info(f"Adding ARP cache entry for {mac_address}/{ip_address} via NIC {nic}") + arp_entry = ARPEntry(mac_address=mac_address, nic_uuid=nic.uuid) + + self.arp[ip_address] = arp_entry + + @abstractmethod + def get_arp_cache_mac_address(self, ip_address: IPv4Address) -> Optional[str]: + """ + Get the MAC address associated with an IP address. + + :param ip_address: The IP address to look up in the cache. + :return: The MAC address associated with the IP address, or None if not found. + """ + pass + + @abstractmethod + def get_arp_cache_nic(self, ip_address: IPv4Address) -> Optional[NIC]: + """ + Get the NIC associated with an IP address. + + :param ip_address: The IP address to look up in the cache. + :return: The NIC associated with the IP address, or None if not found. + """ + pass + + def send_arp_request(self, target_ip_address: Union[IPv4Address, str]): + """ + Perform a standard ARP request for a given target IP address. + + Broadcasts the request through all enabled NICs to determine the MAC address corresponding to the target IP + address. This method can be configured to ignore specific networks when sending out ARP requests, + which is useful in environments where certain addresses should not be queried. + + :param target_ip_address: The target IP address to send an ARP request for. + :param ignore_networks: An optional list of IPv4 addresses representing networks to be excluded from the ARP + request broadcast. Each address in this list indicates a network which will not be queried during the ARP + request process. This is particularly useful in complex network environments where traffic should be + minimized or controlled to specific subnets. It is mainly used by the router to prevent ARP requests being + sent back to their source. + """ + vals: Tuple = self.software_manager.session_manager.resolve_outbound_transmission_details(target_ip_address) + outbound_nic, _, _, _ = vals + if outbound_nic: + self.sys_log.info(f"Sending ARP request from NIC {outbound_nic} for ip {target_ip_address}") + arp_packet = ARPPacket( + sender_ip_address=outbound_nic.ip_address, + sender_mac_addr=outbound_nic.mac_address, + target_ip_address=target_ip_address, + ) + self.software_manager.session_manager.receive_payload_from_software_manage( + payload=arp_packet, dst_port=Port.ARP, ip_protocol=self.protocol + ) + else: + print(f"failed for {target_ip_address}") + + def send_arp_reply(self, arp_reply: ARPPacket, from_nic: NIC): + """ + Send an ARP reply back through the NIC it came from. + + :param arp_reply: The ARP reply to send. + :param from_nic: The NIC to send the ARP reply from. + """ + self.sys_log.info( + f"Sending ARP reply from {arp_reply.sender_mac_addr}/{arp_reply.sender_ip_address} " + f"to {arp_reply.target_ip_address}/{arp_reply.target_mac_addr} " + ) + udp_header = UDPHeader(src_port=Port.ARP, dst_port=Port.ARP) + + ip_packet = IPPacket( + src_ip_address=arp_reply.sender_ip_address, + dst_ip_address=arp_reply.target_ip_address, + protocol=IPProtocol.UDP, + ) + + ethernet_header = EthernetHeader(src_mac_addr=arp_reply.sender_mac_addr, dst_mac_addr=arp_reply.target_mac_addr) + + frame = Frame(ethernet=ethernet_header, ip=ip_packet, udp=udp_header, payload=arp_reply) + from_nic.send_frame(frame) + + def process_arp_packet(self, from_nic: NIC, arp_packet: ARPPacket): + """ + Process a received ARP packet, handling both ARP requests and responses. + + If an ARP request is received for the local IP, a response is sent back. + If an ARP response is received, the ARP cache is updated with the new entry. + + :param from_nic: The NIC that received the ARP packet. + :param arp_packet: The ARP packet to be processed. + """ + + # Unmatched ARP Request + if arp_packet.target_ip_address != from_nic.ip_address: + self.sys_log.info( + f"Ignoring ARP request for {arp_packet.target_ip_address}. Current IP address is {from_nic.ip_address}" + ) + return + + # Matched ARP request + self.add_arp_cache_entry( + ip_address=arp_packet.sender_ip_address, mac_address=arp_packet.sender_mac_addr, nic=from_nic + ) + arp_packet = arp_packet.generate_reply(from_nic.mac_address) + self.send_arp_reply(arp_packet, from_nic) + + @abstractmethod + def _process_arp_request(self, arp_packet: ARPPacket, from_nic: NIC): + self.sys_log.info( + f"Received ARP request for {arp_packet.target_ip_address} from " + f"{arp_packet.sender_mac_addr}/{arp_packet.sender_ip_address} " + ) + + def _process_arp_reply(self, arp_packet: ARPPacket, from_nic: NIC): + self.sys_log.info( + f"Received ARP response for {arp_packet.sender_ip_address} " + f"from {arp_packet.sender_mac_addr} via NIC {from_nic}" + ) + self.add_arp_cache_entry( + ip_address=arp_packet.sender_ip_address, mac_address=arp_packet.sender_mac_addr, nic=from_nic + ) + + def receive(self, payload: Any, session_id: str, **kwargs) -> bool: + if not isinstance(payload, ARPPacket): + print("failied on payload check", type(payload)) + return False + + from_nic = kwargs.get("from_nic") + if payload.request: + print(from_nic) + self._process_arp_request(arp_packet=payload, from_nic=from_nic) + else: + self._process_arp_reply(arp_packet=payload, from_nic=from_nic) + + def __contains__(self, item: Any) -> bool: + return item in self.arp diff --git a/src/primaite/simulator/system/services/arp/host_arp.py b/src/primaite/simulator/system/services/arp/host_arp.py new file mode 100644 index 00000000..678bedbe --- /dev/null +++ b/src/primaite/simulator/system/services/arp/host_arp.py @@ -0,0 +1,95 @@ +from __future__ import annotations + +from ipaddress import IPv4Address +from typing import Optional + +from primaite.simulator.network.hardware.base import NIC +from primaite.simulator.system.services.arp.arp import ARP, ARPPacket + + +class HostARP(ARP): + def get_default_gateway_mac_address(self) -> Optional[str]: + if self.software_manager.node.default_gateway: + return self.get_arp_cache_mac_address(self.software_manager.node.default_gateway) + + def get_default_gateway_nic(self) -> Optional[NIC]: + if self.software_manager.node.default_gateway: + return self.get_arp_cache_nic(self.software_manager.node.default_gateway) + + def _get_arp_cache_mac_address( + self, ip_address: IPv4Address, is_reattempt: bool = False, is_default_gateway_attempt: bool = False + ) -> Optional[str]: + arp_entry = self.arp.get(ip_address) + + if arp_entry: + return arp_entry.mac_address + else: + if not is_reattempt: + self.send_arp_request(ip_address) + return self._get_arp_cache_mac_address( + ip_address=ip_address, is_reattempt=True, is_default_gateway_attempt=is_default_gateway_attempt + ) + else: + if self.node.default_gateway: + if not is_default_gateway_attempt: + self.send_arp_request(self.node.default_gateway) + return self._get_arp_cache_mac_address( + ip_address=self.node.default_gateway, is_reattempt=True, is_default_gateway_attempt=True + ) + return None + + def get_arp_cache_mac_address(self, ip_address: IPv4Address) -> Optional[str]: + """ + Get the MAC address associated with an IP address. + + :param ip_address: The IP address to look up in the cache. + :return: The MAC address associated with the IP address, or None if not found. + """ + return self._get_arp_cache_mac_address(ip_address) + + def _get_arp_cache_nic( + self, ip_address: IPv4Address, is_reattempt: bool = False, is_default_gateway_attempt: bool = False + ) -> Optional[NIC]: + arp_entry = self.arp.get(ip_address) + + if arp_entry: + return self.nics[arp_entry.nic_uuid] + else: + if not is_reattempt: + self.send_arp_request(ip_address) + return self._get_arp_cache_nic( + ip_address=ip_address, is_reattempt=True, is_default_gateway_attempt=is_default_gateway_attempt + ) + else: + if self.node.default_gateway: + if not is_default_gateway_attempt: + self.send_arp_request(self.node.default_gateway) + return self._get_arp_cache_nic( + ip_address=self.node.default_gateway, is_reattempt=True, is_default_gateway_attempt=True + ) + return None + + def get_arp_cache_nic(self, ip_address: IPv4Address) -> Optional[NIC]: + """ + Get the NIC associated with an IP address. + + :param ip_address: The IP address to look up in the cache. + :return: The NIC associated with the IP address, or None if not found. + """ + return self._get_arp_cache_nic(ip_address) + + def _process_arp_request(self, arp_packet: ARPPacket, from_nic: NIC): + super()._process_arp_request(arp_packet, from_nic) + # Unmatched ARP Request + if arp_packet.target_ip_address != from_nic.ip_address: + self.sys_log.info( + f"Ignoring ARP request for {arp_packet.target_ip_address}. Current IP address is {from_nic.ip_address}" + ) + return + + # Matched ARP request + self.add_arp_cache_entry( + ip_address=arp_packet.sender_ip_address, mac_address=arp_packet.sender_mac_addr, nic=from_nic + ) + arp_packet = arp_packet.generate_reply(from_nic.mac_address) + self.send_arp_reply(arp_packet, from_nic) diff --git a/src/primaite/simulator/system/software.py b/src/primaite/simulator/system/software.py index 662db08e..8930fa2f 100644 --- a/src/primaite/simulator/system/software.py +++ b/src/primaite/simulator/system/software.py @@ -8,6 +8,7 @@ from typing import Any, Dict, Optional, Union from primaite.simulator.core import _LOGGER, RequestManager, RequestType, SimComponent from primaite.simulator.file_system.file_system import FileSystem, Folder from primaite.simulator.network.hardware.node_operating_state import NodeOperatingState +from primaite.simulator.network.transmission.network_layer import IPProtocol from primaite.simulator.network.transmission.transport_layer import Port from primaite.simulator.system.core.session_manager import Session from primaite.simulator.system.core.sys_log import SysLog @@ -242,6 +243,8 @@ class IOSoftware(Software): "Indicates if the software uses UDP protocol for communication. Default is True." port: Port "The port to which the software is connected." + protocol: IPProtocol + "The IP Protocol the Software operates on." _connections: Dict[str, Dict] = {} "Active connections." From 1964ab4635d93134ed8c8e7e631ae2f7ff0d8b59 Mon Sep 17 00:00:00 2001 From: Chris McCarthy Date: Thu, 1 Feb 2024 23:05:14 +0000 Subject: [PATCH 02/39] #2248 - Lots more progress. Can now use ARP as a service properly. Also integrated the new ARP into the old ICMP which works. Next step is to more ICMP into services. --- .../simulator/network/hardware/base.py | 79 +++++++++---------- .../simulator/system/core/session_manager.py | 55 ++++++++----- .../simulator/system/core/software_manager.py | 5 ++ .../simulator/system/services/arp/arp.py | 7 +- .../simulator/system/services/arp/host_arp.py | 2 +- 5 files changed, 85 insertions(+), 63 deletions(-) diff --git a/src/primaite/simulator/network/hardware/base.py b/src/primaite/simulator/network/hardware/base.py index 4537adc2..0113c2b4 100644 --- a/src/primaite/simulator/network/hardware/base.py +++ b/src/primaite/simulator/network/hardware/base.py @@ -18,7 +18,7 @@ from primaite.simulator.network.hardware.node_operating_state import NodeOperati from primaite.simulator.network.protocols.arp import ARPEntry, ARPPacket from primaite.simulator.network.transmission.data_link_layer import EthernetHeader, Frame from primaite.simulator.network.transmission.network_layer import ICMPPacket, ICMPType, IPPacket, IPProtocol -from primaite.simulator.network.transmission.transport_layer import Port, TCPHeader, UDPHeader +from primaite.simulator.network.transmission.transport_layer import Port, TCPHeader from primaite.simulator.system.applications.application import Application from primaite.simulator.system.core.packet_capture import PacketCapture from primaite.simulator.system.core.session_manager import SessionManager @@ -761,29 +761,30 @@ class ARPCache: minimized or controlled to specific subnets. It is mainly used by the router to prevent ARP requests being sent back to their source. """ - for nic in self.nics.values(): - use_nic = True - if ignore_networks: - for ipv4 in ignore_networks: - if ipv4 in nic.ip_network: - use_nic = False - if nic.enabled and use_nic: - self.sys_log.info(f"Sending ARP request from NIC {nic} for ip {target_ip_address}") - udp_header = UDPHeader(src_port=Port.ARP, dst_port=Port.ARP) - - # Network Layer - ip_packet = IPPacket( - src_ip_address=nic.ip_address, dst_ip_address=target_ip_address, protocol=IPProtocol.UDP - ) - # Data Link Layer - ethernet_header = EthernetHeader(src_mac_addr=nic.mac_address, dst_mac_addr="ff:ff:ff:ff:ff:ff") - arp_packet = ARPPacket( - sender_ip_address=nic.ip_address, - sender_mac_addr=nic.mac_address, - target_ip_address=target_ip_address, - ) - frame = Frame(ethernet=ethernet_header, ip=ip_packet, udp=udp_header, payload=arp_packet) - nic.send_frame(frame) + pass + # for nic in self.nics.values(): + # use_nic = True + # if ignore_networks: + # for ipv4 in ignore_networks: + # if ipv4 in nic.ip_network: + # use_nic = False + # if nic.enabled and use_nic: + # self.sys_log.info(f"Sending ARP request from NIC {nic} for ip {target_ip_address}") + # udp_header = UDPHeader(src_port=Port.ARP, dst_port=Port.ARP) + # + # # Network Layer + # ip_packet = IPPacket( + # src_ip_address=nic.ip_address, dst_ip_address=target_ip_address, protocol=IPProtocol.UDP + # ) + # # Data Link Layer + # ethernet_header = EthernetHeader(src_mac_addr=nic.mac_address, dst_mac_addr="ff:ff:ff:ff:ff:ff") + # arp_packet = ARPPacket( + # sender_ip_address=nic.ip_address, + # sender_mac_addr=nic.mac_address, + # target_ip_address=target_ip_address, + # ) + # frame = Frame(ethernet=ethernet_header, ip=ip_packet, udp=udp_header, payload=arp_packet) + # nic.send_frame(frame) def send_arp_reply(self, arp_reply: ARPPacket, from_nic: NIC): """ @@ -860,7 +861,7 @@ class ICMP: Provides functionalities for managing and handling ICMP packets, including echo requests and replies. """ - def __init__(self, sys_log: SysLog, arp_cache: ARPCache): + def __init__(self, sys_log: SysLog): """ Initialize the ICMP (Internet Control Message Protocol) service. @@ -868,7 +869,7 @@ class ICMP: :param arp_cache: The ARP cache for resolving IP to MAC address mappings. """ self.sys_log: SysLog = sys_log - self.arp: ARPCache = arp_cache + self.software_manager: SoftwareManager = None ## noqa self.request_replies = {} def clear(self): @@ -884,11 +885,11 @@ class ICMP: if frame.icmp.icmp_type == ICMPType.ECHO_REQUEST: if not is_reattempt: self.sys_log.info(f"Received echo request from {frame.ip.src_ip_address}") - target_mac_address = self.arp.get_arp_cache_mac_address(frame.ip.src_ip_address) + target_mac_address = self.software_manager.arp.get_arp_cache_mac_address(frame.ip.src_ip_address) - src_nic = self.arp.get_arp_cache_nic(frame.ip.src_ip_address) + src_nic = self.software_manager.arp.get_arp_cache_nic(frame.ip.src_ip_address) if not src_nic: - self.arp.send_arp_request(frame.ip.src_ip_address) + self.software_manager.arp.send_arp_request(frame.ip.src_ip_address) self.process_icmp(frame=frame, from_nic=from_nic, is_reattempt=True) return @@ -934,16 +935,16 @@ class ICMP: :return: A tuple containing the next sequence number and the identifier, or (0, None) if the target IP address was not found in the ARP cache. """ - nic = self.arp.get_arp_cache_nic(target_ip_address) + nic = self.software_manager.arp.get_arp_cache_nic(target_ip_address) if not nic: return pings, None # ARP entry exists sequence += 1 - target_mac_address = self.arp.get_arp_cache_mac_address(target_ip_address) + target_mac_address = self.software_manager.arp.get_arp_cache_mac_address(target_ip_address) - src_nic = self.arp.get_arp_cache_nic(target_ip_address) + src_nic = self.software_manager.arp.get_arp_cache_nic(target_ip_address) tcp_header = TCPHeader(src_port=Port.ARP, dst_port=Port.ARP) # Network Layer @@ -998,7 +999,6 @@ class Node(SimComponent): root: Path "Root directory for simulation output." sys_log: SysLog - arp: ARPCache icmp: ICMP session_manager: SessionManager software_manager: SoftwareManager @@ -1042,10 +1042,8 @@ class Node(SimComponent): kwargs["default_gateway"] = IPv4Address(kwargs["default_gateway"]) if not kwargs.get("sys_log"): kwargs["sys_log"] = SysLog(kwargs["hostname"]) - if not kwargs.get("arp"): - kwargs["arp"] = ARPCache(sys_log=kwargs.get("sys_log")) if not kwargs.get("icmp"): - kwargs["icmp"] = ICMP(sys_log=kwargs.get("sys_log"), arp_cache=kwargs.get("arp")) + kwargs["icmp"] = ICMP(sys_log=kwargs.get("sys_log")) if not kwargs.get("session_manager"): kwargs["session_manager"] = SessionManager(sys_log=kwargs.get("sys_log"), arp_cache=kwargs.get("arp")) if not kwargs.get("root"): @@ -1061,12 +1059,13 @@ class Node(SimComponent): dns_server=kwargs.get("dns_server"), ) super().__init__(**kwargs) - self.arp.nics = self.nics - self.arp.node = self + self.icmp.software_manager = self.software_manager + self.session_manager.node = self self.session_manager.software_manager = self.software_manager self._install_system_software() self.set_original_state() + def set_original_state(self): """Sets the original state.""" for software in self.software_manager.software.values(): @@ -1489,8 +1488,8 @@ class Node(SimComponent): """ if self.operating_state == NodeOperatingState.ON: if frame.ip: - if frame.ip.src_ip_address in self.arp: - self.arp.add_arp_cache_entry( + if frame.ip.src_ip_address in self.software_manager.arp: + self.software_manager.arp.add_arp_cache_entry( ip_address=frame.ip.src_ip_address, mac_address=frame.ethernet.src_mac_addr, nic=from_nic ) if frame.ip.protocol == IPProtocol.ICMP: diff --git a/src/primaite/simulator/system/core/session_manager.py b/src/primaite/simulator/system/core/session_manager.py index 8c305032..15001806 100644 --- a/src/primaite/simulator/system/core/session_manager.py +++ b/src/primaite/simulator/system/core/session_manager.py @@ -6,6 +6,7 @@ from typing import Any, Dict, Optional, Tuple, TYPE_CHECKING, Union from prettytable import MARKDOWN, PrettyTable from primaite.simulator.core import SimComponent +from primaite.simulator.network.protocols.arp import ARPPacket from primaite.simulator.network.transmission.data_link_layer import EthernetHeader, Frame from primaite.simulator.network.transmission.network_layer import IPPacket, IPProtocol from primaite.simulator.network.transmission.transport_layer import Port, TCPHeader, UDPHeader @@ -80,7 +81,9 @@ class SessionManager: self.sessions_by_uuid: Dict[str, Session] = {} self.sys_log: SysLog = sys_log self.software_manager: SoftwareManager = None # Noqa - self.arp_cache: "ARPCache" = arp_cache + self.node: Node = None # noqa + + def describe_state(self) -> Dict: """ @@ -138,9 +141,17 @@ class SessionManager: dst_port = None return protocol, with_ip_address, src_port, dst_port + def resolve_outbound_nic(self, dst_ip_address: IPv4Address) -> Optional[NIC]: + for nic in self.node.nics.values(): + if dst_ip_address in nic.ip_network and nic.enabled: + return nic + return self.software_manager.arp.get_default_gateway_nic() + def resolve_outbound_transmission_details( self, dst_ip_address: Optional[Union[IPv4Address, IPv4Network]] = None, session_id: Optional[str] = None ) -> Tuple[Optional["NIC"], Optional[str], Optional[IPProtocol], bool]: + if not isinstance(dst_ip_address, IPv4Address): + dst_ip_address = IPv4Address(dst_ip_address) is_broadcast = False outbound_nic = None dst_mac_address = None @@ -160,7 +171,7 @@ class SessionManager: dst_ip_address = dst_ip_address.broadcast_address if dst_ip_address: # Find a suitable NIC for the broadcast - for nic in self.arp_cache.nics.values(): + for nic in self.node.nics.values(): if dst_ip_address in nic.ip_network and nic.enabled: dst_mac_address = "ff:ff:ff:ff:ff:ff" outbound_nic = nic @@ -168,18 +179,18 @@ class SessionManager: else: # Resolve MAC address for unicast transmission use_default_gateway = True - for nic in self.arp_cache.nics.values(): + for nic in self.node.nics.values(): if dst_ip_address in nic.ip_network and nic.enabled: - dst_mac_address = self.arp_cache.get_arp_cache_mac_address(dst_ip_address) + dst_mac_address = self.software_manager.arp.get_arp_cache_mac_address(dst_ip_address) break if dst_ip_address: use_default_gateway = False - outbound_nic = self.arp_cache.get_arp_cache_nic(dst_ip_address) + outbound_nic = self.software_manager.arp.get_arp_cache_nic(dst_ip_address) if use_default_gateway: - dst_mac_address = self.arp_cache.get_default_gateway_mac_address() - outbound_nic = self.arp_cache.get_default_gateway_nic() + dst_mac_address = self.software_manager.arp.get_default_gateway_mac_address() + outbound_nic = self.software_manager.arp.get_default_gateway_nic() return outbound_nic, dst_mac_address, protocol, is_broadcast def receive_payload_from_software_manager( @@ -203,15 +214,23 @@ class SessionManager: :param session_id: The Session ID from which the payload originates. Optional. :return: The outcome of sending the frame, or None if sending was unsuccessful. """ - print(ip_protocol) - outbound_nic, dst_mac_address, protocol, is_broadcast = self.resolve_outbound_transmission_details( - dst_ip_address=dst_ip_address, session_id=session_id - ) + if isinstance(payload, ARPPacket): + # ARP requests need to be handles differently + if payload.request: + dst_mac_address = "ff:ff:ff:ff:ff:ff" + else: + dst_mac_address = payload.sender_mac_addr + outbound_nic = self.resolve_outbound_nic(payload.target_ip_address) + is_broadcast = payload.request + ip_protocol = IPProtocol.UDP + else: + outbound_nic, dst_mac_address, protocol, is_broadcast = self.resolve_outbound_transmission_details( + dst_ip_address=dst_ip_address, session_id=session_id + ) - if protocol: - ip_protocol = protocol + if protocol: + ip_protocol = protocol - print(ip_protocol) # Check if outbound NIC and destination MAC address are resolved if not outbound_nic or not dst_mac_address: @@ -224,21 +243,21 @@ class SessionManager: src_port=dst_port, dst_port=dst_port, ) - elif ip_protocol == IPProtocol: + elif ip_protocol == IPProtocol.UDP: udp_header = UDPHeader( src_port=dst_port, dst_port=dst_port, ) # Construct the frame for transmission + frame = Frame( ethernet=EthernetHeader(src_mac_addr=outbound_nic.mac_address, dst_mac_addr=dst_mac_address), - ip=IPPacket(src_ip_address=outbound_nic.ip_address, dst_ip_address=dst_ip_address, ip_protocol=ip_protocol), + ip=IPPacket(src_ip_address=outbound_nic.ip_address, dst_ip_address=dst_ip_address, protocol=ip_protocol), tcp=tcp_header, - udp_header=udp_header, + udp=udp_header, payload=payload, ) - print(frame) # Manage session for unicast transmission if not (is_broadcast and session_id): diff --git a/src/primaite/simulator/system/core/software_manager.py b/src/primaite/simulator/system/core/software_manager.py index e1ec6698..f23e2f55 100644 --- a/src/primaite/simulator/system/core/software_manager.py +++ b/src/primaite/simulator/system/core/software_manager.py @@ -15,6 +15,7 @@ if TYPE_CHECKING: from primaite.simulator.system.core.session_manager import SessionManager from primaite.simulator.system.core.sys_log import SysLog from primaite.simulator.network.hardware.base import Node, NIC + from primaite.simulator.system.services.arp.arp import ARP from typing import Type, TypeVar @@ -46,6 +47,10 @@ class SoftwareManager: self.file_system: FileSystem = file_system self.dns_server: Optional[IPv4Address] = dns_server + @property + def arp(self) -> 'ARP': + return self.software.get("ARP") # noqa + def get_open_ports(self) -> List[Port]: """ Get a list of open ports. diff --git a/src/primaite/simulator/system/services/arp/arp.py b/src/primaite/simulator/system/services/arp/arp.py index 46bc151d..136718c2 100644 --- a/src/primaite/simulator/system/services/arp/arp.py +++ b/src/primaite/simulator/system/services/arp/arp.py @@ -105,8 +105,7 @@ class ARP(Service): minimized or controlled to specific subnets. It is mainly used by the router to prevent ARP requests being sent back to their source. """ - vals: Tuple = self.software_manager.session_manager.resolve_outbound_transmission_details(target_ip_address) - outbound_nic, _, _, _ = vals + outbound_nic = self.software_manager.session_manager.resolve_outbound_nic(target_ip_address) if outbound_nic: self.sys_log.info(f"Sending ARP request from NIC {outbound_nic} for ip {target_ip_address}") arp_packet = ARPPacket( @@ -114,8 +113,8 @@ class ARP(Service): sender_mac_addr=outbound_nic.mac_address, target_ip_address=target_ip_address, ) - self.software_manager.session_manager.receive_payload_from_software_manage( - payload=arp_packet, dst_port=Port.ARP, ip_protocol=self.protocol + self.software_manager.session_manager.receive_payload_from_software_manager( + payload=arp_packet, dst_ip_address=target_ip_address, dst_port=Port.ARP, ip_protocol=self.protocol ) else: print(f"failed for {target_ip_address}") diff --git a/src/primaite/simulator/system/services/arp/host_arp.py b/src/primaite/simulator/system/services/arp/host_arp.py index 678bedbe..8bf3369b 100644 --- a/src/primaite/simulator/system/services/arp/host_arp.py +++ b/src/primaite/simulator/system/services/arp/host_arp.py @@ -53,7 +53,7 @@ class HostARP(ARP): arp_entry = self.arp.get(ip_address) if arp_entry: - return self.nics[arp_entry.nic_uuid] + return self.software_manager.node.nics[arp_entry.nic_uuid] else: if not is_reattempt: self.send_arp_request(ip_address) From 87d9d6da044fab4a1a15182ad4632a6ca384cab2 Mon Sep 17 00:00:00 2001 From: Chris McCarthy Date: Fri, 2 Feb 2024 15:35:02 +0000 Subject: [PATCH 03/39] #2248 - Initial work has been done on moving ICMP into services. still tidying up to be done. Need to fix tests too. --- .../simulator/network/hardware/base.py | 174 ++---------------- .../simulator/network/hardware/nodes/host.py | 67 +++++++ .../network/hardware/nodes/router.py | 99 +--------- .../simulator/network/protocols/icmp.py | 114 ++++++++++++ .../network/transmission/data_link_layer.py | 3 +- .../network/transmission/network_layer.py | 104 ----------- .../network/transmission/transport_layer.py | 2 + .../simulator/system/core/session_manager.py | 9 +- .../simulator/system/core/software_manager.py | 15 +- src/primaite/simulator/system/core/sys_log.py | 25 ++- .../simulator/system/services/arp/arp.py | 7 +- .../system/services/icmp/__init__.py | 0 .../simulator/system/services/icmp/icmp.py | 159 ++++++++++++++++ .../system/services/icmp/router_icmp.py | 90 +++++++++ 14 files changed, 495 insertions(+), 373 deletions(-) create mode 100644 src/primaite/simulator/network/hardware/nodes/host.py create mode 100644 src/primaite/simulator/network/protocols/icmp.py create mode 100644 src/primaite/simulator/system/services/icmp/__init__.py create mode 100644 src/primaite/simulator/system/services/icmp/icmp.py create mode 100644 src/primaite/simulator/system/services/icmp/router_icmp.py diff --git a/src/primaite/simulator/network/hardware/base.py b/src/primaite/simulator/network/hardware/base.py index 0113c2b4..7fbaa5f4 100644 --- a/src/primaite/simulator/network/hardware/base.py +++ b/src/primaite/simulator/network/hardware/base.py @@ -4,7 +4,7 @@ import re import secrets from ipaddress import IPv4Address, IPv4Network from pathlib import Path -from typing import Any, Dict, List, Literal, Optional, Tuple, Union +from typing import Any, Dict, List, Literal, Optional, Union from prettytable import MARKDOWN, PrettyTable @@ -17,7 +17,7 @@ from primaite.simulator.file_system.file_system import FileSystem from primaite.simulator.network.hardware.node_operating_state import NodeOperatingState from primaite.simulator.network.protocols.arp import ARPEntry, ARPPacket from primaite.simulator.network.transmission.data_link_layer import EthernetHeader, Frame -from primaite.simulator.network.transmission.network_layer import ICMPPacket, ICMPType, IPPacket, IPProtocol +from primaite.simulator.network.transmission.network_layer import IPPacket from primaite.simulator.network.transmission.transport_layer import Port, TCPHeader from primaite.simulator.system.applications.application import Application from primaite.simulator.system.core.packet_capture import PacketCapture @@ -854,113 +854,6 @@ class ARPCache: return item in self.arp -class ICMP: - """ - The ICMP (Internet Control Message Protocol) class. - - Provides functionalities for managing and handling ICMP packets, including echo requests and replies. - """ - - def __init__(self, sys_log: SysLog): - """ - Initialize the ICMP (Internet Control Message Protocol) service. - - :param sys_log: The system log to store system messages and information. - :param arp_cache: The ARP cache for resolving IP to MAC address mappings. - """ - self.sys_log: SysLog = sys_log - self.software_manager: SoftwareManager = None ## noqa - self.request_replies = {} - - def clear(self): - """Clears the ICMP request replies tracker.""" - self.request_replies.clear() - - def process_icmp(self, frame: Frame, from_nic: NIC, is_reattempt: bool = False): - """ - Process an ICMP packet, including handling echo requests and replies. - - :param frame: The Frame containing the ICMP packet to process. - """ - if frame.icmp.icmp_type == ICMPType.ECHO_REQUEST: - if not is_reattempt: - self.sys_log.info(f"Received echo request from {frame.ip.src_ip_address}") - target_mac_address = self.software_manager.arp.get_arp_cache_mac_address(frame.ip.src_ip_address) - - src_nic = self.software_manager.arp.get_arp_cache_nic(frame.ip.src_ip_address) - if not src_nic: - self.software_manager.arp.send_arp_request(frame.ip.src_ip_address) - self.process_icmp(frame=frame, from_nic=from_nic, is_reattempt=True) - return - - # Network Layer - ip_packet = IPPacket( - src_ip_address=src_nic.ip_address, dst_ip_address=frame.ip.src_ip_address, protocol=IPProtocol.ICMP - ) - # Data Link Layer - ethernet_header = EthernetHeader(src_mac_addr=src_nic.mac_address, dst_mac_addr=target_mac_address) - icmp_reply_packet = ICMPPacket( - icmp_type=ICMPType.ECHO_REPLY, - icmp_code=0, - identifier=frame.icmp.identifier, - sequence=frame.icmp.sequence + 1, - ) - payload = secrets.token_urlsafe(int(32 / 1.3)) # Standard ICMP 32 bytes size - frame = Frame(ethernet=ethernet_header, ip=ip_packet, icmp=icmp_reply_packet, payload=payload) - self.sys_log.info(f"Sending echo reply to {frame.ip.dst_ip_address}") - - src_nic.send_frame(frame) - elif frame.icmp.icmp_type == ICMPType.ECHO_REPLY: - time = frame.transmission_duration() - time_str = f"{time}ms" if time > 0 else "<1ms" - self.sys_log.info( - f"Reply from {frame.ip.src_ip_address}: " - f"bytes={len(frame.payload)}, " - f"time={time_str}, " - f"TTL={frame.ip.ttl}" - ) - if not self.request_replies.get(frame.icmp.identifier): - self.request_replies[frame.icmp.identifier] = 0 - self.request_replies[frame.icmp.identifier] += 1 - - def ping( - self, target_ip_address: IPv4Address, sequence: int = 0, identifier: Optional[int] = None, pings: int = 4 - ) -> Tuple[int, Union[int, None]]: - """ - Send an ICMP echo request (ping) to a target IP address and manage the sequence and identifier. - - :param target_ip_address: The target IP address to send the ping. - :param sequence: The sequence number of the echo request. Defaults to 0. - :param identifier: An optional identifier for the ICMP packet. If None, a default will be used. - :return: A tuple containing the next sequence number and the identifier, or (0, None) if the target IP address - was not found in the ARP cache. - """ - nic = self.software_manager.arp.get_arp_cache_nic(target_ip_address) - - if not nic: - return pings, None - - # ARP entry exists - sequence += 1 - target_mac_address = self.software_manager.arp.get_arp_cache_mac_address(target_ip_address) - - src_nic = self.software_manager.arp.get_arp_cache_nic(target_ip_address) - tcp_header = TCPHeader(src_port=Port.ARP, dst_port=Port.ARP) - - # Network Layer - ip_packet = IPPacket( - src_ip_address=nic.ip_address, - dst_ip_address=target_ip_address, - protocol=IPProtocol.ICMP, - ) - # Data Link Layer - ethernet_header = EthernetHeader(src_mac_addr=src_nic.mac_address, dst_mac_addr=target_mac_address) - icmp_packet = ICMPPacket(identifier=identifier, sequence=sequence) - payload = secrets.token_urlsafe(int(32 / 1.3)) # Standard ICMP 32 bytes size - frame = Frame(ethernet=ethernet_header, ip=ip_packet, tcp=tcp_header, icmp=icmp_packet, payload=payload) - nic.send_frame(frame) - return sequence, icmp_packet.identifier - class Node(SimComponent): """ @@ -999,7 +892,6 @@ class Node(SimComponent): root: Path "Root directory for simulation output." sys_log: SysLog - icmp: ICMP session_manager: SessionManager software_manager: SoftwareManager @@ -1042,8 +934,6 @@ class Node(SimComponent): kwargs["default_gateway"] = IPv4Address(kwargs["default_gateway"]) if not kwargs.get("sys_log"): kwargs["sys_log"] = SysLog(kwargs["hostname"]) - if not kwargs.get("icmp"): - kwargs["icmp"] = ICMP(sys_log=kwargs.get("sys_log")) if not kwargs.get("session_manager"): kwargs["session_manager"] = SessionManager(sys_log=kwargs.get("sys_log"), arp_cache=kwargs.get("arp")) if not kwargs.get("root"): @@ -1059,7 +949,6 @@ class Node(SimComponent): dns_server=kwargs.get("dns_server"), ) super().__init__(**kwargs) - self.icmp.software_manager = self.software_manager self.session_manager.node = self self.session_manager.software_manager = self.software_manager self._install_system_software() @@ -1096,12 +985,6 @@ class Node(SimComponent): """Reset the original state of the SimComponent.""" super().reset_component_for_episode(episode) - # Reset ARP Cache - self.arp.clear() - - # Reset ICMP - self.icmp.clear() - # Reset Session Manager self.session_manager.clear() @@ -1436,35 +1319,9 @@ class Node(SimComponent): :param pings: The number of pings to attempt, default is 4. :return: True if the ping is successful, otherwise False. """ - if self.operating_state == NodeOperatingState.ON: - if not isinstance(target_ip_address, IPv4Address): - target_ip_address = IPv4Address(target_ip_address) - if target_ip_address.is_loopback: - self.sys_log.info("Pinging loopback address") - return any(nic.enabled for nic in self.nics.values()) - if self.operating_state == NodeOperatingState.ON: - output = f"Pinging {target_ip_address}:" - self.sys_log.info(output) - print(output) - sequence, identifier = 0, None - while sequence < pings: - sequence, identifier = self.icmp.ping(target_ip_address, sequence, identifier, pings) - request_replies = self.icmp.request_replies.get(identifier) - passed = request_replies == pings - if request_replies: - self.icmp.request_replies.pop(identifier) - else: - request_replies = 0 - output = ( - f"Ping statistics for {target_ip_address}: " - f"Packets: Sent = {pings}, " - f"Received = {request_replies}, " - f"Lost = {pings - request_replies} ({(pings - request_replies) / pings * 100}% loss)" - ) - self.sys_log.info(output) - print(output) - return passed - return False + if not isinstance(target_ip_address, IPv4Address): + target_ip_address = IPv4Address(target_ip_address) + return self.software_manager.icmp.ping(target_ip_address) def send_frame(self, frame: Frame): """ @@ -1492,22 +1349,23 @@ class Node(SimComponent): self.software_manager.arp.add_arp_cache_entry( ip_address=frame.ip.src_ip_address, mac_address=frame.ethernet.src_mac_addr, nic=from_nic ) - if frame.ip.protocol == IPProtocol.ICMP: - self.icmp.process_icmp(frame=frame, from_nic=from_nic) - return + # Check if the destination port is open on the Node dst_port = None if frame.tcp: dst_port = frame.tcp.dst_port elif frame.udp: dst_port = frame.udp.dst_port - if dst_port in self.software_manager.get_open_ports(): - # accept thr frame as the port is open + + accept_frame = False + if frame.icmp or dst_port in self.software_manager.get_open_ports(): + # accept the frame as the port is open or if it's an ICMP frame + accept_frame = True + + # TODO: add internal node firewall check here? + + if accept_frame: self.session_manager.receive_frame(frame, from_nic) - # if frame.tcp.src_port == Port.ARP: - # self.arp.process_arp_packet(from_nic=from_nic, arp_packet=frame.arp) - # else: - # self.session_manager.receive_frame(frame) else: # denied as port closed self.sys_log.info(f"Ignoring frame for port {frame.tcp.dst_port.value} from {frame.ip.src_ip_address}") @@ -1527,7 +1385,6 @@ class Node(SimComponent): self.services[service.uuid] = service service.parent = self service.install() # Perform any additional setup, such as creating files for this service on the node. - self.sys_log.info(f"Installed service {service.name}") self._service_request_manager.add_request(service.uuid, RequestType(func=service._request_manager)) def uninstall_service(self, service: Service) -> None: @@ -1559,7 +1416,6 @@ class Node(SimComponent): return self.applications[application.uuid] = application application.parent = self - self.sys_log.info(f"Installed application {application.name}") self._application_request_manager.add_request(application.uuid, RequestType(func=application._request_manager)) def uninstall_application(self, application: Application) -> None: diff --git a/src/primaite/simulator/network/hardware/nodes/host.py b/src/primaite/simulator/network/hardware/nodes/host.py new file mode 100644 index 00000000..f4fc1586 --- /dev/null +++ b/src/primaite/simulator/network/hardware/nodes/host.py @@ -0,0 +1,67 @@ +from primaite.simulator.network.hardware.base import NIC, Node +from primaite.simulator.system.applications.web_browser import WebBrowser +from primaite.simulator.system.services.arp.host_arp import HostARP +from primaite.simulator.system.services.dns.dns_client import DNSClient +from primaite.simulator.system.services.ftp.ftp_client import FTPClient +from primaite.simulator.system.services.icmp.icmp import ICMP +from primaite.simulator.system.services.ntp.ntp_client import NTPClient + + +class Host(Node): + """ + A basic Host class. + + Example: + >>> pc_a = Host( + hostname="pc_a", + ip_address="192.168.1.10", + subnet_mask="255.255.255.0", + default_gateway="192.168.1.1" + ) + >>> pc_a.power_on() + + Instances of computer come 'pre-packaged' with the following: + + * Core Functionality: + * ARP + * ICMP + * Packet Capture + * Sys Log + * Services: + * DNS Client + * FTP Client + * LDAP Client + * NTP Client + * Applications: + * Email Client + * Web Browser + * Processes: + * Placeholder + """ + + def __init__(self, **kwargs): + super().__init__(**kwargs) + self.connect_nic(NIC(ip_address=kwargs["ip_address"], subnet_mask=kwargs["subnet_mask"])) + self._install_system_software() + + def _install_system_software(self): + """Install System Software - software that is usually provided with the OS.""" + # ARP Service + self.software_manager.install(HostARP) + + # ICMP Service + self.software_manager.install(ICMP) + + # DNS Client + self.software_manager.install(DNSClient) + + # FTP Client + self.software_manager.install(FTPClient) + + # NTP Client + self.software_manager.install(NTPClient) + + # Web Browser + self.software_manager.install(WebBrowser) + + super()._install_system_software() diff --git a/src/primaite/simulator/network/hardware/nodes/router.py b/src/primaite/simulator/network/hardware/nodes/router.py index ed9a30d4..53277d69 100644 --- a/src/primaite/simulator/network/hardware/nodes/router.py +++ b/src/primaite/simulator/network/hardware/nodes/router.py @@ -8,10 +8,10 @@ from typing import Dict, List, Optional, Tuple, Union from prettytable import MARKDOWN, PrettyTable from primaite.simulator.core import RequestManager, RequestType, SimComponent -from primaite.simulator.network.hardware.base import ARPCache, ICMP, NIC, Node +from primaite.simulator.network.hardware.base import ARPCache, NIC, Node from primaite.simulator.network.hardware.node_operating_state import NodeOperatingState from primaite.simulator.network.transmission.data_link_layer import EthernetHeader, Frame -from primaite.simulator.network.transmission.network_layer import ICMPPacket, ICMPType, IPPacket, IPProtocol +from primaite.simulator.network.transmission.network_layer import IPPacket, IPProtocol from primaite.simulator.network.transmission.transport_layer import Port, TCPHeader from primaite.simulator.system.core.sys_log import SysLog @@ -628,96 +628,6 @@ class RouterARPCache(ARPCache): # return -class RouterICMP(ICMP): - """ - A class to represent a router's Internet Control Message Protocol (ICMP) handler. - - :param sys_log: System log for logging network events and errors. - :type sys_log: SysLog - :param arp_cache: The ARP cache for resolving MAC addresses. - :type arp_cache: ARPCache - :param router: The router to which this ICMP handler belongs. - :type router: Router - """ - - router: Router - - def __init__(self, sys_log: SysLog, arp_cache: ARPCache, router: Router): - super().__init__(sys_log, arp_cache) - self.router = router - - def process_icmp(self, frame: Frame, from_nic: NIC, is_reattempt: bool = False): - """ - Process incoming ICMP frames based on ICMP type. - - :param frame: The incoming frame to process. - :param from_nic: The network interface where the frame is coming from. - :param is_reattempt: Flag to indicate if the process is a reattempt. - """ - if frame.icmp.icmp_type == ICMPType.ECHO_REQUEST: - # determine if request is for router interface or whether it needs to be routed - - for nic in self.router.nics.values(): - if nic.ip_address == frame.ip.dst_ip_address: - if nic.enabled: - # reply to the request - if not is_reattempt: - self.sys_log.info(f"Received echo request from {frame.ip.src_ip_address}") - target_mac_address = self.arp.get_arp_cache_mac_address(frame.ip.src_ip_address) - src_nic = self.arp.get_arp_cache_nic(frame.ip.src_ip_address) - tcp_header = TCPHeader(src_port=Port.ARP, dst_port=Port.ARP) - - # Network Layer - ip_packet = IPPacket( - src_ip_address=nic.ip_address, - dst_ip_address=frame.ip.src_ip_address, - protocol=IPProtocol.ICMP, - ) - # Data Link Layer - ethernet_header = EthernetHeader( - src_mac_addr=src_nic.mac_address, dst_mac_addr=target_mac_address - ) - icmp_reply_packet = ICMPPacket( - icmp_type=ICMPType.ECHO_REPLY, - icmp_code=0, - identifier=frame.icmp.identifier, - sequence=frame.icmp.sequence + 1, - ) - payload = secrets.token_urlsafe(int(32 / 1.3)) # Standard ICMP 32 bytes size - frame = Frame( - ethernet=ethernet_header, - ip=ip_packet, - tcp=tcp_header, - icmp=icmp_reply_packet, - payload=payload, - ) - self.sys_log.info(f"Sending echo reply to {frame.ip.dst_ip_address}") - - src_nic.send_frame(frame) - return - - # Route the frame - self.router.process_frame(frame, from_nic) - - elif frame.icmp.icmp_type == ICMPType.ECHO_REPLY: - for nic in self.router.nics.values(): - if nic.ip_address == frame.ip.dst_ip_address: - if nic.enabled: - time = frame.transmission_duration() - time_str = f"{time}ms" if time > 0 else "<1ms" - self.sys_log.info( - f"Reply from {frame.ip.src_ip_address}: " - f"bytes={len(frame.payload)}, " - f"time={time_str}, " - f"TTL={frame.ip.ttl}" - ) - if not self.request_replies.get(frame.icmp.identifier): - self.request_replies[frame.icmp.identifier] = 0 - self.request_replies[frame.icmp.identifier] += 1 - - return - # Route the frame - self.router.process_frame(frame, from_nic) class RouterNIC(NIC): @@ -786,9 +696,10 @@ class Router(Node): kwargs["route_table"] = RouteTable(sys_log=kwargs["sys_log"]) if not kwargs.get("arp"): kwargs["arp"] = RouterARPCache(sys_log=kwargs.get("sys_log"), router=self) - if not kwargs.get("icmp"): - kwargs["icmp"] = RouterICMP(sys_log=kwargs.get("sys_log"), arp_cache=kwargs.get("arp"), router=self) + # if not kwargs.get("icmp"): + # kwargs["icmp"] = RouterICMP(sys_log=kwargs.get("sys_log"), arp_cache=kwargs.get("arp"), router=self) super().__init__(hostname=hostname, num_ports=num_ports, **kwargs) + # TODO: Install RoputerICMP for i in range(1, self.num_ports + 1): nic = RouterNIC(ip_address="127.0.0.1", subnet_mask="255.0.0.0", gateway="0.0.0.0") self.connect_nic(nic) diff --git a/src/primaite/simulator/network/protocols/icmp.py b/src/primaite/simulator/network/protocols/icmp.py new file mode 100644 index 00000000..9f761393 --- /dev/null +++ b/src/primaite/simulator/network/protocols/icmp.py @@ -0,0 +1,114 @@ +import secrets +from enum import Enum +from typing import Union + +from pydantic import BaseModel, field_validator, validate_call +from pydantic_core.core_schema import FieldValidationInfo + +from primaite import getLogger + +_LOGGER = getLogger(__name__) + + +class ICMPType(Enum): + """Enumeration of common ICMP (Internet Control Message Protocol) types.""" + + ECHO_REPLY = 0 + "Echo Reply message." + DESTINATION_UNREACHABLE = 3 + "Destination Unreachable." + REDIRECT = 5 + "Redirect." + ECHO_REQUEST = 8 + "Echo Request (ping)." + ROUTER_ADVERTISEMENT = 10 + "Router Advertisement." + ROUTER_SOLICITATION = 11 + "Router discovery/selection/solicitation." + TIME_EXCEEDED = 11 + "Time Exceeded." + TIMESTAMP_REQUEST = 13 + "Timestamp Request." + TIMESTAMP_REPLY = 14 + "Timestamp Reply." + + +@validate_call +def get_icmp_type_code_description(icmp_type: ICMPType, icmp_code: int) -> Union[str, None]: + """ + Maps ICMPType and code pairings to their respective description. + + :param icmp_type: An ICMPType. + :param icmp_code: An icmp code. + :return: The icmp type and code pairing description if it exists, otherwise returns None. + """ + icmp_code_descriptions = { + ICMPType.ECHO_REPLY: {0: "Echo reply"}, + ICMPType.DESTINATION_UNREACHABLE: { + 0: "Destination network unreachable", + 1: "Destination host unreachable", + 2: "Destination protocol unreachable", + 3: "Destination port unreachable", + 4: "Fragmentation required", + 5: "Source route failed", + 6: "Destination network unknown", + 7: "Destination host unknown", + 8: "Source host isolated", + 9: "Network administratively prohibited", + 10: "Host administratively prohibited", + 11: "Network unreachable for ToS", + 12: "Host unreachable for ToS", + 13: "Communication administratively prohibited", + 14: "Host Precedence Violation", + 15: "Precedence cutoff in effect", + }, + ICMPType.REDIRECT: { + 0: "Redirect Datagram for the Network", + 1: "Redirect Datagram for the Host", + }, + ICMPType.ECHO_REQUEST: {0: "Echo request"}, + ICMPType.ROUTER_ADVERTISEMENT: {0: "Router Advertisement"}, + ICMPType.ROUTER_SOLICITATION: {0: "Router discovery/selection/solicitation"}, + ICMPType.TIME_EXCEEDED: {0: "TTL expired in transit", 1: "Fragment reassembly time exceeded"}, + ICMPType.TIMESTAMP_REQUEST: {0: "Timestamp Request"}, + ICMPType.TIMESTAMP_REPLY: {0: "Timestamp reply"}, + } + return icmp_code_descriptions[icmp_type].get(icmp_code) + + +class ICMPPacket(BaseModel): + """Models an ICMP Packet.""" + + icmp_type: ICMPType = ICMPType.ECHO_REQUEST + "ICMP Type." + icmp_code: int = 0 + "ICMP Code." + identifier: int + "ICMP identifier (16 bits randomly generated)." + sequence: int = 0 + "ICMP message sequence number." + + def __init__(self, **kwargs): + if not kwargs.get("identifier"): + kwargs["identifier"] = secrets.randbits(16) + super().__init__(**kwargs) + + @field_validator("icmp_code") # noqa + @classmethod + def _icmp_type_must_have_icmp_code(cls, v: int, info: FieldValidationInfo) -> int: + """Validates the icmp_type and icmp_code.""" + icmp_type = info.data["icmp_type"] + if get_icmp_type_code_description(icmp_type, v): + return v + msg = f"No Matching ICMP code for type:{icmp_type.name}, code:{v}" + _LOGGER.error(msg) + raise ValueError(msg) + + def code_description(self) -> str: + """The icmp_code description.""" + description = get_icmp_type_code_description(self.icmp_type, self.icmp_code) + if description: + return description + msg = f"No Matching ICMP code for type:{self.icmp_type.name}, code:{self.icmp_code}" + _LOGGER.error(msg) + raise ValueError(msg) \ No newline at end of file diff --git a/src/primaite/simulator/network/transmission/data_link_layer.py b/src/primaite/simulator/network/transmission/data_link_layer.py index 6a4e24d8..5c25df01 100644 --- a/src/primaite/simulator/network/transmission/data_link_layer.py +++ b/src/primaite/simulator/network/transmission/data_link_layer.py @@ -5,8 +5,9 @@ from pydantic import BaseModel from primaite import getLogger from primaite.simulator.network.protocols.arp import ARPPacket +from primaite.simulator.network.protocols.icmp import ICMPPacket from primaite.simulator.network.protocols.packet import DataPacket -from primaite.simulator.network.transmission.network_layer import ICMPPacket, IPPacket, IPProtocol +from primaite.simulator.network.transmission.network_layer import IPPacket, IPProtocol from primaite.simulator.network.transmission.primaite_layer import PrimaiteHeader from primaite.simulator.network.transmission.transport_layer import TCPHeader, UDPHeader from primaite.simulator.network.utils import convert_bytes_to_megabits diff --git a/src/primaite/simulator/network/transmission/network_layer.py b/src/primaite/simulator/network/transmission/network_layer.py index fd36fbf8..b581becd 100644 --- a/src/primaite/simulator/network/transmission/network_layer.py +++ b/src/primaite/simulator/network/transmission/network_layer.py @@ -54,110 +54,6 @@ class Precedence(Enum): "Highest priority level, used for the most critical network control messages, such as routing protocol hellos." -class ICMPType(Enum): - """Enumeration of common ICMP (Internet Control Message Protocol) types.""" - - ECHO_REPLY = 0 - "Echo Reply message." - DESTINATION_UNREACHABLE = 3 - "Destination Unreachable." - REDIRECT = 5 - "Redirect." - ECHO_REQUEST = 8 - "Echo Request (ping)." - ROUTER_ADVERTISEMENT = 10 - "Router Advertisement." - ROUTER_SOLICITATION = 11 - "Router discovery/selection/solicitation." - TIME_EXCEEDED = 11 - "Time Exceeded." - TIMESTAMP_REQUEST = 13 - "Timestamp Request." - TIMESTAMP_REPLY = 14 - "Timestamp Reply." - - -@validate_call -def get_icmp_type_code_description(icmp_type: ICMPType, icmp_code: int) -> Union[str, None]: - """ - Maps ICMPType and code pairings to their respective description. - - :param icmp_type: An ICMPType. - :param icmp_code: An icmp code. - :return: The icmp type and code pairing description if it exists, otherwise returns None. - """ - icmp_code_descriptions = { - ICMPType.ECHO_REPLY: {0: "Echo reply"}, - ICMPType.DESTINATION_UNREACHABLE: { - 0: "Destination network unreachable", - 1: "Destination host unreachable", - 2: "Destination protocol unreachable", - 3: "Destination port unreachable", - 4: "Fragmentation required", - 5: "Source route failed", - 6: "Destination network unknown", - 7: "Destination host unknown", - 8: "Source host isolated", - 9: "Network administratively prohibited", - 10: "Host administratively prohibited", - 11: "Network unreachable for ToS", - 12: "Host unreachable for ToS", - 13: "Communication administratively prohibited", - 14: "Host Precedence Violation", - 15: "Precedence cutoff in effect", - }, - ICMPType.REDIRECT: { - 0: "Redirect Datagram for the Network", - 1: "Redirect Datagram for the Host", - }, - ICMPType.ECHO_REQUEST: {0: "Echo request"}, - ICMPType.ROUTER_ADVERTISEMENT: {0: "Router Advertisement"}, - ICMPType.ROUTER_SOLICITATION: {0: "Router discovery/selection/solicitation"}, - ICMPType.TIME_EXCEEDED: {0: "TTL expired in transit", 1: "Fragment reassembly time exceeded"}, - ICMPType.TIMESTAMP_REQUEST: {0: "Timestamp Request"}, - ICMPType.TIMESTAMP_REPLY: {0: "Timestamp reply"}, - } - return icmp_code_descriptions[icmp_type].get(icmp_code) - - -class ICMPPacket(BaseModel): - """Models an ICMP Packet.""" - - icmp_type: ICMPType = ICMPType.ECHO_REQUEST - "ICMP Type." - icmp_code: int = 0 - "ICMP Code." - identifier: int - "ICMP identifier (16 bits randomly generated)." - sequence: int = 0 - "ICMP message sequence number." - - def __init__(self, **kwargs): - if not kwargs.get("identifier"): - kwargs["identifier"] = secrets.randbits(16) - super().__init__(**kwargs) - - @field_validator("icmp_code") # noqa - @classmethod - def _icmp_type_must_have_icmp_code(cls, v: int, info: FieldValidationInfo) -> int: - """Validates the icmp_type and icmp_code.""" - icmp_type = info.data["icmp_type"] - if get_icmp_type_code_description(icmp_type, v): - return v - msg = f"No Matching ICMP code for type:{icmp_type.name}, code:{v}" - _LOGGER.error(msg) - raise ValueError(msg) - - def code_description(self) -> str: - """The icmp_code description.""" - description = get_icmp_type_code_description(self.icmp_type, self.icmp_code) - if description: - return description - msg = f"No Matching ICMP code for type:{self.icmp_type.name}, code:{self.icmp_code}" - _LOGGER.error(msg) - raise ValueError(msg) - - class IPPacket(BaseModel): """ Represents the IP layer of a network frame. diff --git a/src/primaite/simulator/network/transmission/transport_layer.py b/src/primaite/simulator/network/transmission/transport_layer.py index d4318baf..7c7509ab 100644 --- a/src/primaite/simulator/network/transmission/transport_layer.py +++ b/src/primaite/simulator/network/transmission/transport_layer.py @@ -7,6 +7,8 @@ from pydantic import BaseModel class Port(Enum): """Enumeration of common known TCP/UDP ports used by protocols for operation of network applications.""" + NONE = 0 + "Place holder for a non-port." WOL = 9 "Wake-on-Lan (WOL) - Used to turn or awaken a computer from sleep mode by a network message." FTP_DATA = 20 diff --git a/src/primaite/simulator/system/core/session_manager.py b/src/primaite/simulator/system/core/session_manager.py index 15001806..c134f56a 100644 --- a/src/primaite/simulator/system/core/session_manager.py +++ b/src/primaite/simulator/system/core/session_manager.py @@ -293,8 +293,15 @@ class SessionManager: dst_port = frame.tcp.dst_port elif frame.udp: dst_port = frame.udp.dst_port + elif frame.icmp: + dst_port = Port.NONE self.software_manager.receive_payload_from_session_manager( - payload=frame.payload, port=dst_port, protocol=frame.ip.protocol, session_id=session.uuid, from_nic=from_nic + payload=frame.payload, + port=dst_port, + protocol=frame.ip.protocol, + session_id=session.uuid, + from_nic=from_nic, + frame=frame ) def show(self, markdown: bool = False): diff --git a/src/primaite/simulator/system/core/software_manager.py b/src/primaite/simulator/system/core/software_manager.py index f23e2f55..ac765018 100644 --- a/src/primaite/simulator/system/core/software_manager.py +++ b/src/primaite/simulator/system/core/software_manager.py @@ -4,6 +4,7 @@ from typing import Any, Dict, List, Optional, Tuple, TYPE_CHECKING, Union from prettytable import MARKDOWN, PrettyTable from primaite.simulator.file_system.file_system import FileSystem +from primaite.simulator.network.transmission.data_link_layer import Frame from primaite.simulator.network.transmission.network_layer import IPProtocol from primaite.simulator.network.transmission.transport_layer import Port from primaite.simulator.system.applications.application import Application, ApplicationOperatingState @@ -16,6 +17,7 @@ if TYPE_CHECKING: from primaite.simulator.system.core.sys_log import SysLog from primaite.simulator.network.hardware.base import Node, NIC from primaite.simulator.system.services.arp.arp import ARP + from primaite.simulator.system.services.icmp.icmp import ICMP from typing import Type, TypeVar @@ -51,6 +53,10 @@ class SoftwareManager: def arp(self) -> 'ARP': return self.software.get("ARP") # noqa + @property + def icmp(self) -> 'ICMP': + return self.software.get("ICMP") # noqa + def get_open_ports(self) -> List[Port]: """ Get a list of open ports. @@ -160,7 +166,7 @@ class SoftwareManager: ) def receive_payload_from_session_manager( - self, payload: Any, port: Port, protocol: IPProtocol, session_id: str, from_nic: "NIC" + self, payload: Any, port: Port, protocol: IPProtocol, session_id: str, from_nic: "NIC", frame: Frame ): """ Receive a payload from the SessionManager and forward it to the corresponding service or application. @@ -170,7 +176,7 @@ class SoftwareManager: """ receiver: Optional[Union[Service, Application]] = self.port_protocol_mapping.get((port, protocol), None) if receiver: - receiver.receive(payload=payload, session_id=session_id, from_nic=from_nic) + receiver.receive(payload=payload, session_id=session_id, from_nic=from_nic, frame=frame) else: self.sys_log.error(f"No service or application found for port {port} and protocol {protocol}") pass @@ -181,7 +187,7 @@ class SoftwareManager: :param markdown: If True, outputs the table in markdown format. Default is False. """ - table = PrettyTable(["Name", "Type", "Operating State", "Health State", "Port"]) + table = PrettyTable(["Name", "Type", "Operating State", "Health State", "Port", "Protocol"]) if markdown: table.set_style(MARKDOWN) table.align = "l" @@ -194,7 +200,8 @@ class SoftwareManager: software_type, software.operating_state.name, software.health_state_actual.name, - software.port.value, + software.port.value if software.port != Port.NONE else None, + software.protocol.value ] ) print(table) diff --git a/src/primaite/simulator/system/core/sys_log.py b/src/primaite/simulator/system/core/sys_log.py index 00e6920b..414bacef 100644 --- a/src/primaite/simulator/system/core/sys_log.py +++ b/src/primaite/simulator/system/core/sys_log.py @@ -88,47 +88,62 @@ class SysLog: root.mkdir(exist_ok=True, parents=True) return root / f"{self.hostname}_sys.log" - def debug(self, msg: str): + def debug(self, msg: str, to_terminal: bool = False): """ Logs a message with the DEBUG level. :param msg: The message to be logged. + :param to_terminal: If True, prints to the terminal too. """ if SIM_OUTPUT.save_sys_logs: self.logger.debug(msg) + if to_terminal: + print(msg) - def info(self, msg: str): + def info(self, msg: str, to_terminal: bool = False): """ Logs a message with the INFO level. :param msg: The message to be logged. + :param to_terminal: If True, prints to the terminal too. """ if SIM_OUTPUT.save_sys_logs: self.logger.info(msg) + if to_terminal: + print(msg) - def warning(self, msg: str): + def warning(self, msg: str, to_terminal: bool = False): """ Logs a message with the WARNING level. :param msg: The message to be logged. + :param to_terminal: If True, prints to the terminal too. """ if SIM_OUTPUT.save_sys_logs: self.logger.warning(msg) + if to_terminal: + print(msg) - def error(self, msg: str): + def error(self, msg: str, to_terminal: bool = False): """ Logs a message with the ERROR level. :param msg: The message to be logged. + :param to_terminal: If True, prints to the terminal too. """ if SIM_OUTPUT.save_sys_logs: self.logger.error(msg) + if to_terminal: + print(msg) - def critical(self, msg: str): + def critical(self, msg: str, to_terminal: bool = False): """ Logs a message with the CRITICAL level. :param msg: The message to be logged. + :param to_terminal: If True, prints to the terminal too. """ if SIM_OUTPUT.save_sys_logs: self.logger.critical(msg) + if to_terminal: + print(msg) diff --git a/src/primaite/simulator/system/services/arp/arp.py b/src/primaite/simulator/system/services/arp/arp.py index 136718c2..28a2485c 100644 --- a/src/primaite/simulator/system/services/arp/arp.py +++ b/src/primaite/simulator/system/services/arp/arp.py @@ -2,17 +2,15 @@ from __future__ import annotations from abc import abstractmethod from ipaddress import IPv4Address -from typing import Any, Dict, Optional, Tuple, Union +from typing import Any, Dict, Optional, Union from prettytable import MARKDOWN, PrettyTable -from pydantic import BaseModel from primaite.simulator.network.hardware.base import NIC from primaite.simulator.network.protocols.arp import ARPEntry, ARPPacket -from primaite.simulator.network.protocols.packet import DataPacket from primaite.simulator.network.transmission.data_link_layer import EthernetHeader, Frame from primaite.simulator.network.transmission.network_layer import IPPacket, IPProtocol -from primaite.simulator.network.transmission.transport_layer import Port, TCPHeader, UDPHeader +from primaite.simulator.network.transmission.transport_layer import Port, UDPHeader from primaite.simulator.system.services.service import Service @@ -191,7 +189,6 @@ class ARP(Service): from_nic = kwargs.get("from_nic") if payload.request: - print(from_nic) self._process_arp_request(arp_packet=payload, from_nic=from_nic) else: self._process_arp_reply(arp_packet=payload, from_nic=from_nic) diff --git a/src/primaite/simulator/system/services/icmp/__init__.py b/src/primaite/simulator/system/services/icmp/__init__.py new file mode 100644 index 00000000..e69de29b diff --git a/src/primaite/simulator/system/services/icmp/icmp.py b/src/primaite/simulator/system/services/icmp/icmp.py new file mode 100644 index 00000000..16dd4f8c --- /dev/null +++ b/src/primaite/simulator/system/services/icmp/icmp.py @@ -0,0 +1,159 @@ +import secrets +from ipaddress import IPv4Address +from typing import Dict, Any, Union, Optional, Tuple + +from primaite import getLogger +from primaite.simulator.network.hardware.base import NIC +from primaite.simulator.network.protocols.icmp import ICMPPacket, ICMPType +from primaite.simulator.network.transmission.data_link_layer import Frame, EthernetHeader +from primaite.simulator.network.transmission.network_layer import IPProtocol, IPPacket +from primaite.simulator.network.transmission.transport_layer import Port +from primaite.simulator.system.services.service import Service + +_LOGGER = getLogger(__name__) + + +class ICMP(Service): + request_replies: Dict = {} + + def __init__(self, **kwargs): + kwargs["name"] = "ICMP" + kwargs["port"] = Port.NONE + kwargs["protocol"] = IPProtocol.ICMP + super().__init__(**kwargs) + + def describe_state(self) -> Dict: + pass + + def clear(self): + """Clears the ICMP request replies tracker.""" + self.request_replies.clear() + + def _send_icmp_echo_request( + self, target_ip_address: IPv4Address, sequence: int = 0, identifier: Optional[int] = None, pings: int = 4 + ) -> Tuple[int, Union[int, None]]: + """ + Send an ICMP echo request (ping) to a target IP address and manage the sequence and identifier. + + :param target_ip_address: The target IP address to send the ping. + :param sequence: The sequence number of the echo request. Defaults to 0. + :param identifier: An optional identifier for the ICMP packet. If None, a default will be used. + :return: A tuple containing the next sequence number and the identifier, or (0, None) if the target IP address + was not found in the ARP cache. + """ + nic = self.software_manager.arp.get_arp_cache_nic(target_ip_address) + + if not nic: + return pings, None + + # ARP entry exists + sequence += 1 + target_mac_address = self.software_manager.arp.get_arp_cache_mac_address(target_ip_address) + + src_nic = self.software_manager.arp.get_arp_cache_nic(target_ip_address) + + # Network Layer + ip_packet = IPPacket( + src_ip_address=nic.ip_address, + dst_ip_address=target_ip_address, + protocol=IPProtocol.ICMP, + ) + # Data Link Layer + ethernet_header = EthernetHeader(src_mac_addr=src_nic.mac_address, dst_mac_addr=target_mac_address) + icmp_packet = ICMPPacket(identifier=identifier, sequence=sequence) + payload = secrets.token_urlsafe(int(32 / 1.3)) # Standard ICMP 32 bytes size + frame = Frame(ethernet=ethernet_header, ip=ip_packet, icmp=icmp_packet, payload=payload) + nic.send_frame(frame) + return sequence, icmp_packet.identifier + + def ping(self, target_ip_address: Union[IPv4Address, str], pings: int = 4) -> bool: + """ + Ping an IP address, performing a standard ICMP echo request/response. + + :param target_ip_address: The target IP address to ping. + :param pings: The number of pings to attempt, default is 4. + :return: True if the ping is successful, otherwise False. + """ + if not self._can_perform_action(): + return False + if target_ip_address.is_loopback: + self.sys_log.info("Pinging loopback address") + return any(nic.enabled for nic in self.nics.values()) + self.sys_log.info(f"Pinging {target_ip_address}:", to_terminal=True) + sequence, identifier = 0, None + while sequence < pings: + sequence, identifier = self._send_icmp_echo_request( + target_ip_address, sequence, identifier, pings + ) + request_replies = self.software_manager.icmp.request_replies.get(identifier) + passed = request_replies == pings + if request_replies: + self.software_manager.icmp.request_replies.pop(identifier) + else: + request_replies = 0 + output = ( + f"Ping statistics for {target_ip_address}: " + f"Packets: Sent = {pings}, " + f"Received = {request_replies}, " + f"Lost = {pings - request_replies} ({(pings - request_replies) / pings * 100}% loss)" + ) + self.sys_log.info(output, to_terminal=True) + + return passed + + def _process_icmp_echo_request(self, frame: Frame, from_nic: NIC, is_reattempt: bool = False): + if frame.icmp.icmp_type == ICMPType.ECHO_REQUEST: + if not is_reattempt: + self.sys_log.info(f"Received echo request from {frame.ip.src_ip_address}") + target_mac_address = self.software_manager.arp.get_arp_cache_mac_address(frame.ip.src_ip_address) + + src_nic = self.software_manager.arp.get_arp_cache_nic(frame.ip.src_ip_address) + if not src_nic: + self.software_manager.arp.send_arp_request(frame.ip.src_ip_address) + self.process_icmp(frame=frame, from_nic=from_nic, is_reattempt=True) + return + + # Network Layer + ip_packet = IPPacket( + src_ip_address=src_nic.ip_address, dst_ip_address=frame.ip.src_ip_address, protocol=IPProtocol.ICMP + ) + # Data Link Layer + ethernet_header = EthernetHeader(src_mac_addr=src_nic.mac_address, dst_mac_addr=target_mac_address) + icmp_reply_packet = ICMPPacket( + icmp_type=ICMPType.ECHO_REPLY, + icmp_code=0, + identifier=frame.icmp.identifier, + sequence=frame.icmp.sequence + 1, + ) + payload = secrets.token_urlsafe(int(32 / 1.3)) # Standard ICMP 32 bytes size + frame = Frame(ethernet=ethernet_header, ip=ip_packet, icmp=icmp_reply_packet, payload=payload) + self.sys_log.info(f"Sending echo reply to {frame.ip.dst_ip_address}") + + src_nic.send_frame(frame) + + def _process_icmp_echo_reply(self, frame: Frame, from_nic: NIC, is_reattempt: bool = False): + time = frame.transmission_duration() + time_str = f"{time}ms" if time > 0 else "<1ms" + self.sys_log.info( + f"Reply from {frame.ip.src_ip_address}: " + f"bytes={len(frame.payload)}, " + f"time={time_str}, " + f"TTL={frame.ip.ttl}", + to_terminal=True + ) + if not self.request_replies.get(frame.icmp.identifier): + self.request_replies[frame.icmp.identifier] = 0 + self.request_replies[frame.icmp.identifier] += 1 + + def receive(self, payload: Any, session_id: str, **kwargs) -> bool: + frame: Frame = kwargs["frame"] + from_nic = kwargs["from_nic"] + + if not frame.icmp: + return False + + if frame.icmp.icmp_type == ICMPType.ECHO_REQUEST: + self._process_icmp_echo_request(frame, from_nic) + elif frame.icmp.icmp_type == ICMPType.ECHO_REPLY: + self._process_icmp_echo_reply(frame, from_nic) + return True diff --git a/src/primaite/simulator/system/services/icmp/router_icmp.py b/src/primaite/simulator/system/services/icmp/router_icmp.py new file mode 100644 index 00000000..1def00c4 --- /dev/null +++ b/src/primaite/simulator/system/services/icmp/router_icmp.py @@ -0,0 +1,90 @@ +# class RouterICMP(ICMP): +# """ +# A class to represent a router's Internet Control Message Protocol (ICMP) handler. +# +# :param sys_log: System log for logging network events and errors. +# :type sys_log: SysLog +# :param arp_cache: The ARP cache for resolving MAC addresses. +# :type arp_cache: ARPCache +# :param router: The router to which this ICMP handler belongs. +# :type router: Router +# """ +# +# router: Router +# +# def __init__(self, sys_log: SysLog, arp_cache: ARPCache, router: Router): +# super().__init__(sys_log, arp_cache) +# self.router = router +# +# def process_icmp(self, frame: Frame, from_nic: NIC, is_reattempt: bool = False): +# """ +# Process incoming ICMP frames based on ICMP type. +# +# :param frame: The incoming frame to process. +# :param from_nic: The network interface where the frame is coming from. +# :param is_reattempt: Flag to indicate if the process is a reattempt. +# """ +# if frame.icmp.icmp_type == ICMPType.ECHO_REQUEST: +# # determine if request is for router interface or whether it needs to be routed +# +# for nic in self.router.nics.values(): +# if nic.ip_address == frame.ip.dst_ip_address: +# if nic.enabled: +# # reply to the request +# if not is_reattempt: +# self.sys_log.info(f"Received echo request from {frame.ip.src_ip_address}") +# target_mac_address = self.arp.get_arp_cache_mac_address(frame.ip.src_ip_address) +# src_nic = self.arp.get_arp_cache_nic(frame.ip.src_ip_address) +# tcp_header = TCPHeader(src_port=Port.ARP, dst_port=Port.ARP) +# +# # Network Layer +# ip_packet = IPPacket( +# src_ip_address=nic.ip_address, +# dst_ip_address=frame.ip.src_ip_address, +# protocol=IPProtocol.ICMP, +# ) +# # Data Link Layer +# ethernet_header = EthernetHeader( +# src_mac_addr=src_nic.mac_address, dst_mac_addr=target_mac_address +# ) +# icmp_reply_packet = ICMPPacket( +# icmp_type=ICMPType.ECHO_REPLY, +# icmp_code=0, +# identifier=frame.icmp.identifier, +# sequence=frame.icmp.sequence + 1, +# ) +# payload = secrets.token_urlsafe(int(32 / 1.3)) # Standard ICMP 32 bytes size +# frame = Frame( +# ethernet=ethernet_header, +# ip=ip_packet, +# tcp=tcp_header, +# icmp=icmp_reply_packet, +# payload=payload, +# ) +# self.sys_log.info(f"Sending echo reply to {frame.ip.dst_ip_address}") +# +# src_nic.send_frame(frame) +# return +# +# # Route the frame +# self.router.process_frame(frame, from_nic) +# +# elif frame.icmp.icmp_type == ICMPType.ECHO_REPLY: +# for nic in self.router.nics.values(): +# if nic.ip_address == frame.ip.dst_ip_address: +# if nic.enabled: +# time = frame.transmission_duration() +# time_str = f"{time}ms" if time > 0 else "<1ms" +# self.sys_log.info( +# f"Reply from {frame.ip.src_ip_address}: " +# f"bytes={len(frame.payload)}, " +# f"time={time_str}, " +# f"TTL={frame.ip.ttl}" +# ) +# if not self.request_replies.get(frame.icmp.identifier): +# self.request_replies[frame.icmp.identifier] = 0 +# self.request_replies[frame.icmp.identifier] += 1 +# +# return +# # Route the frame +# self.router.process_frame(frame, from_nic) From dc5aeede33436f6ab5762fd3130c8be3f3f7926b Mon Sep 17 00:00:00 2001 From: Chris McCarthy Date: Fri, 2 Feb 2024 16:20:15 +0000 Subject: [PATCH 04/39] #2248 - ICMP now working as a service using the session manager for transmission. Now started to comb through the tests to fix anything up. --- .../simulator/network/hardware/base.py | 256 ------------------ .../network/hardware/nodes/computer.py | 29 +- .../simulator/network/hardware/nodes/host.py | 8 +- .../network/hardware/nodes/router.py | 115 +------- .../network/hardware/nodes/server.py | 13 +- .../simulator/system/core/session_manager.py | 6 +- .../simulator/system/services/arp/host_arp.py | 12 +- .../system/services/arp/router_arp.py | 98 +++++++ .../simulator/system/services/icmp/icmp.py | 168 +++++++----- .../network/test_switched_network.py | 22 +- .../_transmission/test_data_link_layer.py | 3 +- .../_transmission/test_network_layer.py | 2 +- 12 files changed, 241 insertions(+), 491 deletions(-) create mode 100644 src/primaite/simulator/system/services/arp/router_arp.py diff --git a/src/primaite/simulator/network/hardware/base.py b/src/primaite/simulator/network/hardware/base.py index 7fbaa5f4..403d9638 100644 --- a/src/primaite/simulator/network/hardware/base.py +++ b/src/primaite/simulator/network/hardware/base.py @@ -599,262 +599,6 @@ class Link(SimComponent): def __str__(self) -> str: return f"{self.endpoint_a}<-->{self.endpoint_b}" - -class ARPCache: - """ - The ARPCache (Address Resolution Protocol) class. - - Responsible for maintaining a mapping between IP addresses and MAC addresses (ARP cache) for the network. It - provides methods for looking up, adding, and removing entries, and for processing ARPPackets. - """ - - def __init__(self, sys_log: "SysLog"): - """ - Initialize an ARP (Address Resolution Protocol) cache. - - :param sys_log: The nodes sys log. - """ - self.sys_log: "SysLog" = sys_log - self.arp: Dict[IPv4Address, ARPEntry] = {} - self.nics: Dict[str, "NIC"] = {} - self.node = None - - def show(self, markdown: bool = False): - """Prints a table of ARC Cache.""" - table = PrettyTable(["IP Address", "MAC Address", "Via"]) - if markdown: - table.set_style(MARKDOWN) - table.align = "l" - table.title = f"{self.sys_log.hostname} ARP Cache" - for ip, arp in self.arp.items(): - table.add_row( - [ - str(ip), - arp.mac_address, - self.nics[arp.nic_uuid].mac_address, - ] - ) - print(table) - - def clear(self): - """Clears the arp cache.""" - self.arp.clear() - - def add_arp_cache_entry(self, ip_address: IPv4Address, mac_address: str, nic: NIC, override: bool = False): - """ - Add an ARP entry to the cache. - - If an entry for the given IP address already exists, the entry is only updated if the `override` parameter is - set to True. - - :param ip_address: The IP address to be added to the cache. - :param mac_address: The MAC address associated with the IP address. - :param nic: The NIC through which the NIC with the IP address is reachable. - :param override: If True, an existing entry for the IP address will be overridden. Default is False. - """ - for _nic in self.nics.values(): - if _nic.ip_address == ip_address: - return - if override or not self.arp.get(ip_address): - self.sys_log.info(f"Adding ARP cache entry for {mac_address}/{ip_address} via NIC {nic}") - arp_entry = ARPEntry(mac_address=mac_address, nic_uuid=nic.uuid) - - self.arp[ip_address] = arp_entry - - def _remove_arp_cache_entry(self, ip_address: IPv4Address): - """ - Remove an ARP entry from the cache. - - :param ip_address: The IP address to be removed from the cache. - """ - if ip_address in self.arp: - del self.arp[ip_address] - - def get_default_gateway_mac_address(self) -> Optional[str]: - if self.arp.node.default_gateway: - return self.get_arp_cache_mac_address(self.arp.node.default_gateway) - - def get_default_gateway_nic(self) -> Optional[NIC]: - if self.arp.node.default_gateway: - return self.get_arp_cache_nic(self.arp.node.default_gateway) - - def _get_arp_cache_mac_address( - self, ip_address: IPv4Address, is_reattempt: bool = False, is_default_gateway_attempt: bool = False - ) -> Optional[str]: - arp_entry = self.arp.get(ip_address) - - if arp_entry: - return arp_entry.mac_address - else: - if not is_reattempt: - self.send_arp_request(ip_address) - return self._get_arp_cache_mac_address( - ip_address=ip_address, is_reattempt=True, is_default_gateway_attempt=is_default_gateway_attempt - ) - else: - if self.node.default_gateway: - if not is_default_gateway_attempt: - self.send_arp_request(self.node.default_gateway) - return self._get_arp_cache_mac_address( - ip_address=self.node.default_gateway, is_reattempt=True, is_default_gateway_attempt=True - ) - return None - - def get_arp_cache_mac_address(self, ip_address: IPv4Address) -> Optional[str]: - """ - Get the MAC address associated with an IP address. - - :param ip_address: The IP address to look up in the cache. - :return: The MAC address associated with the IP address, or None if not found. - """ - return self._get_arp_cache_mac_address(ip_address) - - def _get_arp_cache_nic( - self, ip_address: IPv4Address, is_reattempt: bool = False, is_default_gateway_attempt: bool = False - ) -> Optional[NIC]: - arp_entry = self.arp.get(ip_address) - - if arp_entry: - return self.nics[arp_entry.nic_uuid] - else: - if not is_reattempt: - self.send_arp_request(ip_address) - return self._get_arp_cache_nic( - ip_address=ip_address, is_reattempt=True, is_default_gateway_attempt=is_default_gateway_attempt - ) - else: - if self.node.default_gateway: - if not is_default_gateway_attempt: - self.send_arp_request(self.node.default_gateway) - return self._get_arp_cache_nic( - ip_address=self.node.default_gateway, is_reattempt=True, is_default_gateway_attempt=True - ) - return None - - def get_arp_cache_nic(self, ip_address: IPv4Address) -> Optional[NIC]: - """ - Get the NIC associated with an IP address. - - :param ip_address: The IP address to look up in the cache. - :return: The NIC associated with the IP address, or None if not found. - """ - return self._get_arp_cache_nic(ip_address) - - def clear_arp_cache(self): - """Clear the entire ARP cache, removing all stored entries.""" - self.arp.clear() - - def send_arp_request( - self, target_ip_address: Union[IPv4Address, str], ignore_networks: Optional[List[IPv4Address]] = None - ): - """ - Perform a standard ARP request for a given target IP address. - - Broadcasts the request through all enabled NICs to determine the MAC address corresponding to the target IP - address. This method can be configured to ignore specific networks when sending out ARP requests, - which is useful in environments where certain addresses should not be queried. - - :param target_ip_address: The target IP address to send an ARP request for. - :param ignore_networks: An optional list of IPv4 addresses representing networks to be excluded from the ARP - request broadcast. Each address in this list indicates a network which will not be queried during the ARP - request process. This is particularly useful in complex network environments where traffic should be - minimized or controlled to specific subnets. It is mainly used by the router to prevent ARP requests being - sent back to their source. - """ - pass - # for nic in self.nics.values(): - # use_nic = True - # if ignore_networks: - # for ipv4 in ignore_networks: - # if ipv4 in nic.ip_network: - # use_nic = False - # if nic.enabled and use_nic: - # self.sys_log.info(f"Sending ARP request from NIC {nic} for ip {target_ip_address}") - # udp_header = UDPHeader(src_port=Port.ARP, dst_port=Port.ARP) - # - # # Network Layer - # ip_packet = IPPacket( - # src_ip_address=nic.ip_address, dst_ip_address=target_ip_address, protocol=IPProtocol.UDP - # ) - # # Data Link Layer - # ethernet_header = EthernetHeader(src_mac_addr=nic.mac_address, dst_mac_addr="ff:ff:ff:ff:ff:ff") - # arp_packet = ARPPacket( - # sender_ip_address=nic.ip_address, - # sender_mac_addr=nic.mac_address, - # target_ip_address=target_ip_address, - # ) - # frame = Frame(ethernet=ethernet_header, ip=ip_packet, udp=udp_header, payload=arp_packet) - # nic.send_frame(frame) - - def send_arp_reply(self, arp_reply: ARPPacket, from_nic: NIC): - """ - Send an ARP reply back through the NIC it came from. - - :param arp_reply: The ARP reply to send. - :param from_nic: The NIC to send the ARP reply from. - """ - self.sys_log.info( - f"Sending ARP reply from {arp_reply.sender_mac_addr}/{arp_reply.sender_ip_address} " - f"to {arp_reply.target_ip_address}/{arp_reply.target_mac_addr} " - ) - tcp_header = TCPHeader(src_port=Port.ARP, dst_port=Port.ARP) - - ip_packet = IPPacket( - src_ip_address=arp_reply.sender_ip_address, - dst_ip_address=arp_reply.target_ip_address, - ) - - ethernet_header = EthernetHeader(src_mac_addr=arp_reply.sender_mac_addr, dst_mac_addr=arp_reply.target_mac_addr) - - frame = Frame(ethernet=ethernet_header, ip=ip_packet, tcp=tcp_header, arp=arp_reply) - from_nic.send_frame(frame) - - def process_arp_packet(self, from_nic: NIC, arp_packet: ARPPacket): - """ - Process a received ARP packet, handling both ARP requests and responses. - - If an ARP request is received for the local IP, a response is sent back. - If an ARP response is received, the ARP cache is updated with the new entry. - - :param from_nic: The NIC that received the ARP packet. - :param arp_packet: The ARP packet to be processed. - """ - # ARP Reply - if not arp_packet.request: - self.sys_log.info( - f"Received ARP response for {arp_packet.sender_ip_address} " - f"from {arp_packet.sender_mac_addr} via NIC {from_nic}" - ) - self.add_arp_cache_entry( - ip_address=arp_packet.sender_ip_address, mac_address=arp_packet.sender_mac_addr, nic=from_nic - ) - return - - # ARP Request - self.sys_log.info( - f"Received ARP request for {arp_packet.target_ip_address} from " - f"{arp_packet.sender_mac_addr}/{arp_packet.sender_ip_address} " - ) - - # Unmatched ARP Request - if arp_packet.target_ip_address != from_nic.ip_address: - self.sys_log.info( - f"Ignoring ARP request for {arp_packet.target_ip_address}. Current IP address is {from_nic.ip_address}" - ) - return - - # Matched ARP request - self.add_arp_cache_entry( - ip_address=arp_packet.sender_ip_address, mac_address=arp_packet.sender_mac_addr, nic=from_nic - ) - arp_packet = arp_packet.generate_reply(from_nic.mac_address) - self.send_arp_reply(arp_packet, from_nic) - - def __contains__(self, item: Any) -> bool: - return item in self.arp - - - class Node(SimComponent): """ A basic Node class that represents a node on the network. diff --git a/src/primaite/simulator/network/hardware/nodes/computer.py b/src/primaite/simulator/network/hardware/nodes/computer.py index 0480aca9..61d3e3ff 100644 --- a/src/primaite/simulator/network/hardware/nodes/computer.py +++ b/src/primaite/simulator/network/hardware/nodes/computer.py @@ -1,10 +1,11 @@ from primaite.simulator.network.hardware.base import NIC, Node +from primaite.simulator.network.hardware.nodes.host import Host from primaite.simulator.system.applications.web_browser import WebBrowser from primaite.simulator.system.services.dns.dns_client import DNSClient from primaite.simulator.system.services.ftp.ftp_client import FTPClient -class Computer(Node): +class Computer(Host): """ A basic Computer class. @@ -20,36 +21,16 @@ class Computer(Node): Instances of computer come 'pre-packaged' with the following: * Core Functionality: - * ARP - * ICMP * Packet Capture * Sys Log * Services: + * ARP Service + * ICMP Service * DNS Client * FTP Client - * LDAP Client * NTP Client * Applications: - * Email Client * Web Browser - * Processes: - * Placeholder """ + pass - def __init__(self, **kwargs): - super().__init__(**kwargs) - self.connect_nic(NIC(ip_address=kwargs["ip_address"], subnet_mask=kwargs["subnet_mask"])) - self._install_system_software() - - def _install_system_software(self): - """Install System Software - software that is usually provided with the OS.""" - # DNS Client - self.software_manager.install(DNSClient) - - # FTP - self.software_manager.install(FTPClient) - - # Web Browser - self.software_manager.install(WebBrowser) - - super()._install_system_software() diff --git a/src/primaite/simulator/network/hardware/nodes/host.py b/src/primaite/simulator/network/hardware/nodes/host.py index f4fc1586..b0486538 100644 --- a/src/primaite/simulator/network/hardware/nodes/host.py +++ b/src/primaite/simulator/network/hardware/nodes/host.py @@ -23,20 +23,16 @@ class Host(Node): Instances of computer come 'pre-packaged' with the following: * Core Functionality: - * ARP - * ICMP * Packet Capture * Sys Log * Services: + * ARP Service + * ICMP Service * DNS Client * FTP Client - * LDAP Client * NTP Client * Applications: - * Email Client * Web Browser - * Processes: - * Placeholder """ def __init__(self, **kwargs): diff --git a/src/primaite/simulator/network/hardware/nodes/router.py b/src/primaite/simulator/network/hardware/nodes/router.py index 53277d69..34eb0423 100644 --- a/src/primaite/simulator/network/hardware/nodes/router.py +++ b/src/primaite/simulator/network/hardware/nodes/router.py @@ -8,7 +8,7 @@ from typing import Dict, List, Optional, Tuple, Union from prettytable import MARKDOWN, PrettyTable from primaite.simulator.core import RequestManager, RequestType, SimComponent -from primaite.simulator.network.hardware.base import ARPCache, NIC, Node +from primaite.simulator.network.hardware.base import NIC, Node from primaite.simulator.network.hardware.node_operating_state import NodeOperatingState from primaite.simulator.network.transmission.data_link_layer import EthernetHeader, Frame from primaite.simulator.network.transmission.network_layer import IPPacket, IPProtocol @@ -528,108 +528,6 @@ class RouteTable(SimComponent): table.add_row([index, f"{route.address}/{network.prefixlen}", route.next_hop_ip_address, route.metric]) print(table) - -class RouterARPCache(ARPCache): - """ - Inherits from ARPCache and adds router-specific ARP packet processing. - - :ivar SysLog sys_log: A system log for logging messages. - :ivar Router router: The router to which this ARP cache belongs. - """ - - def __init__(self, sys_log: SysLog, router: Router): - super().__init__(sys_log) - self.router: Router = router - - def process_arp_packet( - self, from_nic: NIC, frame: Frame, route_table: RouteTable, is_reattempt: bool = False - ) -> None: - """ - Processes a received ARP (Address Resolution Protocol) packet in a router-specific way. - - This method is responsible for handling both ARP requests and responses. It processes ARP packets received on a - Network Interface Card (NIC) and performs actions based on whether the packet is a request or a reply. This - includes updating the ARP cache, forwarding ARP replies, sending ARP requests for unknown destinations, and - handling packet TTL (Time To Live). - - The method first checks if the ARP packet is a request or a reply. For ARP replies, it updates the ARP cache - and forwards the reply if necessary. For ARP requests, it checks if the target IP matches one of the router's - NICs and sends an ARP reply if so. If the destination is not directly connected, it consults the routing table - to find the best route and reattempts ARP request processing if needed. - - :param from_nic: The NIC that received the ARP packet. - :param frame: The frame containing the ARP packet. - :param route_table: The routing table of the router. - :param is_reattempt: Flag to indicate if this is a reattempt of processing the ARP packet, defaults to False. - """ - arp_packet = frame.arp - - # ARP Reply - if not arp_packet.request: - if arp_packet.target_ip_address == from_nic.ip_address: - # reply to the Router specifically - self.sys_log.info( - f"Received ARP response for {arp_packet.sender_ip_address} " - f"from {arp_packet.sender_mac_addr} via NIC {from_nic}" - ) - self.add_arp_cache_entry( - ip_address=arp_packet.sender_ip_address, - mac_address=arp_packet.sender_mac_addr, - nic=from_nic, - ) - return - - # # Reply for a connected requested - # nic = self.get_arp_cache_nic(arp_packet.target_ip_address) - # if nic: - # self.sys_log.info( - # f"Forwarding arp reply for {arp_packet.target_ip_address}, from {arp_packet.sender_ip_address}" - # ) - # arp_packet.sender_mac_addr = nic.mac_address - # frame.decrement_ttl() - # if frame.ip and frame.ip.ttl < 1: - # self.sys_log.info("Frame discarded as TTL limit reached") - # return - # nic.send_frame(frame) - # return - - # ARP Request - self.sys_log.info( - f"Received ARP request for {arp_packet.target_ip_address} from " - f"{arp_packet.sender_mac_addr}/{arp_packet.sender_ip_address} " - ) - # Matched ARP request - self.add_arp_cache_entry( - ip_address=arp_packet.sender_ip_address, mac_address=arp_packet.sender_mac_addr, nic=from_nic - ) - - # If the target IP matches one of the router's NICs - for nic in self.nics.values(): - if nic.enabled and nic.ip_address == arp_packet.target_ip_address: - arp_reply = arp_packet.generate_reply(from_nic.mac_address) - self.send_arp_reply(arp_reply, from_nic) - return - - # # Check Route Table - # route = route_table.find_best_route(arp_packet.target_ip_address) - # if route and route != self.router.route_table.default_route: - # nic = self.get_arp_cache_nic(route.next_hop_ip_address) - # - # if not nic: - # if not is_reattempt: - # self.send_arp_request(route.next_hop_ip_address, ignore_networks=[frame.ip.src_ip_address]) - # return self.process_arp_packet(from_nic, frame, route_table, is_reattempt=True) - # else: - # self.sys_log.info("Ignoring ARP request as destination unavailable/No ARP entry found") - # return - # else: - # arp_reply = arp_packet.generate_reply(from_nic.mac_address) - # self.send_arp_reply(arp_reply, from_nic) - # return - - - - class RouterNIC(NIC): """ A Router-specific Network Interface Card (NIC) that extends the standard NIC functionality. @@ -684,8 +582,8 @@ class Router(Node): ethernet_ports: Dict[int, RouterNIC] = {} acl: AccessControlList route_table: RouteTable - arp: RouterARPCache - icmp: RouterICMP + # arp: RouterARPCache + # icmp: RouterICMP def __init__(self, hostname: str, num_ports: int = 5, **kwargs): if not kwargs.get("sys_log"): @@ -694,12 +592,13 @@ class Router(Node): kwargs["acl"] = AccessControlList(sys_log=kwargs["sys_log"], implicit_action=ACLAction.DENY) if not kwargs.get("route_table"): kwargs["route_table"] = RouteTable(sys_log=kwargs["sys_log"]) - if not kwargs.get("arp"): - kwargs["arp"] = RouterARPCache(sys_log=kwargs.get("sys_log"), router=self) + # if not kwargs.get("arp"): + # kwargs["arp"] = RouterARPCache(sys_log=kwargs.get("sys_log"), router=self) # if not kwargs.get("icmp"): # kwargs["icmp"] = RouterICMP(sys_log=kwargs.get("sys_log"), arp_cache=kwargs.get("arp"), router=self) super().__init__(hostname=hostname, num_ports=num_ports, **kwargs) - # TODO: Install RoputerICMP + # TODO: Install RouterICMP + # TODO: Install RouterARP for i in range(1, self.num_ports + 1): nic = RouterNIC(ip_address="127.0.0.1", subnet_mask="255.0.0.0", gateway="0.0.0.0") self.connect_nic(nic) diff --git a/src/primaite/simulator/network/hardware/nodes/server.py b/src/primaite/simulator/network/hardware/nodes/server.py index b72cc71c..0a2c361f 100644 --- a/src/primaite/simulator/network/hardware/nodes/server.py +++ b/src/primaite/simulator/network/hardware/nodes/server.py @@ -1,7 +1,7 @@ -from primaite.simulator.network.hardware.nodes.computer import Computer +from primaite.simulator.network.hardware.nodes.host import Host -class Server(Computer): +class Server(Host): """ A basic Server class. @@ -17,18 +17,15 @@ class Server(Computer): Instances of Server come 'pre-packaged' with the following: * Core Functionality: - * ARP - * ICMP * Packet Capture * Sys Log * Services: + * ARP Service + * ICMP Service * DNS Client * FTP Client - * LDAP Client * NTP Client * Applications: - * Email Client * Web Browser - * Processes: - * Placeholder """ + pass diff --git a/src/primaite/simulator/system/core/session_manager.py b/src/primaite/simulator/system/core/session_manager.py index c134f56a..a748b7df 100644 --- a/src/primaite/simulator/system/core/session_manager.py +++ b/src/primaite/simulator/system/core/session_manager.py @@ -7,6 +7,7 @@ from prettytable import MARKDOWN, PrettyTable from primaite.simulator.core import SimComponent from primaite.simulator.network.protocols.arp import ARPPacket +from primaite.simulator.network.protocols.icmp import ICMPPacket from primaite.simulator.network.transmission.data_link_layer import EthernetHeader, Frame from primaite.simulator.network.transmission.network_layer import IPPacket, IPProtocol from primaite.simulator.network.transmission.transport_layer import Port, TCPHeader, UDPHeader @@ -200,6 +201,7 @@ class SessionManager: dst_port: Optional[Port] = None, session_id: Optional[str] = None, ip_protocol: IPProtocol = IPProtocol.TCP, + icmp_packet: Optional[ICMPPacket] = None ) -> Union[Any, None]: """ Receive a payload from the SoftwareManager and send it to the appropriate NIC for transmission. @@ -250,16 +252,17 @@ class SessionManager: ) # Construct the frame for transmission - frame = Frame( ethernet=EthernetHeader(src_mac_addr=outbound_nic.mac_address, dst_mac_addr=dst_mac_address), ip=IPPacket(src_ip_address=outbound_nic.ip_address, dst_ip_address=dst_ip_address, protocol=ip_protocol), tcp=tcp_header, udp=udp_header, + icmp=icmp_packet, payload=payload, ) # Manage session for unicast transmission + # TODO: Only create sessions for TCP if not (is_broadcast and session_id): session_key = self._get_session_key(frame, inbound_frame=False) session = self.sessions_by_key.get(session_key) @@ -281,6 +284,7 @@ class SessionManager: :param frame: The frame being received. """ + # TODO: Only create sessions for TCP session_key = self._get_session_key(frame, inbound_frame=True) session: Session = self.sessions_by_key.get(session_key) if not session: diff --git a/src/primaite/simulator/system/services/arp/host_arp.py b/src/primaite/simulator/system/services/arp/host_arp.py index 8bf3369b..f3e70838 100644 --- a/src/primaite/simulator/system/services/arp/host_arp.py +++ b/src/primaite/simulator/system/services/arp/host_arp.py @@ -30,11 +30,11 @@ class HostARP(ARP): ip_address=ip_address, is_reattempt=True, is_default_gateway_attempt=is_default_gateway_attempt ) else: - if self.node.default_gateway: + if self.software_manager.node.default_gateway: if not is_default_gateway_attempt: - self.send_arp_request(self.node.default_gateway) + self.send_arp_request(self.software_manager.node.default_gateway) return self._get_arp_cache_mac_address( - ip_address=self.node.default_gateway, is_reattempt=True, is_default_gateway_attempt=True + ip_address=self.software_manager.node.default_gateway, is_reattempt=True, is_default_gateway_attempt=True ) return None @@ -61,11 +61,11 @@ class HostARP(ARP): ip_address=ip_address, is_reattempt=True, is_default_gateway_attempt=is_default_gateway_attempt ) else: - if self.node.default_gateway: + if self.software_manager.node.default_gateway: if not is_default_gateway_attempt: - self.send_arp_request(self.node.default_gateway) + self.send_arp_request(self.software_manager.node.default_gateway) return self._get_arp_cache_nic( - ip_address=self.node.default_gateway, is_reattempt=True, is_default_gateway_attempt=True + ip_address=self.software_manager.node.default_gateway, is_reattempt=True, is_default_gateway_attempt=True ) return None diff --git a/src/primaite/simulator/system/services/arp/router_arp.py b/src/primaite/simulator/system/services/arp/router_arp.py new file mode 100644 index 00000000..3c32b108 --- /dev/null +++ b/src/primaite/simulator/system/services/arp/router_arp.py @@ -0,0 +1,98 @@ +# class RouterARPCache(ARPCache): +# """ +# Inherits from ARPCache and adds router-specific ARP packet processing. +# +# :ivar SysLog sys_log: A system log for logging messages. +# :ivar Router router: The router to which this ARP cache belongs. +# """ +# +# def __init__(self, sys_log: SysLog, router: Router): +# super().__init__(sys_log) +# self.router: Router = router +# +# def process_arp_packet( +# self, from_nic: NIC, frame: Frame, route_table: RouteTable, is_reattempt: bool = False +# ) -> None: +# """ +# Processes a received ARP (Address Resolution Protocol) packet in a router-specific way. +# +# This method is responsible for handling both ARP requests and responses. It processes ARP packets received on a +# Network Interface Card (NIC) and performs actions based on whether the packet is a request or a reply. This +# includes updating the ARP cache, forwarding ARP replies, sending ARP requests for unknown destinations, and +# handling packet TTL (Time To Live). +# +# The method first checks if the ARP packet is a request or a reply. For ARP replies, it updates the ARP cache +# and forwards the reply if necessary. For ARP requests, it checks if the target IP matches one of the router's +# NICs and sends an ARP reply if so. If the destination is not directly connected, it consults the routing table +# to find the best route and reattempts ARP request processing if needed. +# +# :param from_nic: The NIC that received the ARP packet. +# :param frame: The frame containing the ARP packet. +# :param route_table: The routing table of the router. +# :param is_reattempt: Flag to indicate if this is a reattempt of processing the ARP packet, defaults to False. +# """ +# arp_packet = frame.arp +# +# # ARP Reply +# if not arp_packet.request: +# if arp_packet.target_ip_address == from_nic.ip_address: +# # reply to the Router specifically +# self.sys_log.info( +# f"Received ARP response for {arp_packet.sender_ip_address} " +# f"from {arp_packet.sender_mac_addr} via NIC {from_nic}" +# ) +# self.add_arp_cache_entry( +# ip_address=arp_packet.sender_ip_address, +# mac_address=arp_packet.sender_mac_addr, +# nic=from_nic, +# ) +# return +# +# # # Reply for a connected requested +# # nic = self.get_arp_cache_nic(arp_packet.target_ip_address) +# # if nic: +# # self.sys_log.info( +# # f"Forwarding arp reply for {arp_packet.target_ip_address}, from {arp_packet.sender_ip_address}" +# # ) +# # arp_packet.sender_mac_addr = nic.mac_address +# # frame.decrement_ttl() +# # if frame.ip and frame.ip.ttl < 1: +# # self.sys_log.info("Frame discarded as TTL limit reached") +# # return +# # nic.send_frame(frame) +# # return +# +# # ARP Request +# self.sys_log.info( +# f"Received ARP request for {arp_packet.target_ip_address} from " +# f"{arp_packet.sender_mac_addr}/{arp_packet.sender_ip_address} " +# ) +# # Matched ARP request +# self.add_arp_cache_entry( +# ip_address=arp_packet.sender_ip_address, mac_address=arp_packet.sender_mac_addr, nic=from_nic +# ) +# +# # If the target IP matches one of the router's NICs +# for nic in self.nics.values(): +# if nic.enabled and nic.ip_address == arp_packet.target_ip_address: +# arp_reply = arp_packet.generate_reply(from_nic.mac_address) +# self.send_arp_reply(arp_reply, from_nic) +# return +# +# # # Check Route Table +# # route = route_table.find_best_route(arp_packet.target_ip_address) +# # if route and route != self.router.route_table.default_route: +# # nic = self.get_arp_cache_nic(route.next_hop_ip_address) +# # +# # if not nic: +# # if not is_reattempt: +# # self.send_arp_request(route.next_hop_ip_address, ignore_networks=[frame.ip.src_ip_address]) +# # return self.process_arp_packet(from_nic, frame, route_table, is_reattempt=True) +# # else: +# # self.sys_log.info("Ignoring ARP request as destination unavailable/No ARP entry found") +# # return +# # else: +# # arp_reply = arp_packet.generate_reply(from_nic.mac_address) +# # self.send_arp_reply(arp_reply, from_nic) +# # return +# diff --git a/src/primaite/simulator/system/services/icmp/icmp.py b/src/primaite/simulator/system/services/icmp/icmp.py index 16dd4f8c..93582350 100644 --- a/src/primaite/simulator/system/services/icmp/icmp.py +++ b/src/primaite/simulator/system/services/icmp/icmp.py @@ -5,8 +5,8 @@ from typing import Dict, Any, Union, Optional, Tuple from primaite import getLogger from primaite.simulator.network.hardware.base import NIC from primaite.simulator.network.protocols.icmp import ICMPPacket, ICMPType -from primaite.simulator.network.transmission.data_link_layer import Frame, EthernetHeader -from primaite.simulator.network.transmission.network_layer import IPProtocol, IPPacket +from primaite.simulator.network.transmission.data_link_layer import Frame +from primaite.simulator.network.transmission.network_layer import IPProtocol from primaite.simulator.network.transmission.transport_layer import Port from primaite.simulator.system.services.service import Service @@ -14,6 +14,12 @@ _LOGGER = getLogger(__name__) class ICMP(Service): + """ + The Internet Control Message Protocol (ICMP) services. + + Enables the sending and receiving of ICMP messages such as echo requests and replies. This is typically used for + network diagnostics, notably the ping command. + """ request_replies: Dict = {} def __init__(self, **kwargs): @@ -26,53 +32,22 @@ class ICMP(Service): pass def clear(self): - """Clears the ICMP request replies tracker.""" + """ + Clears the ICMP request and reply tracker. + + This is typically used to reset the state of the service, removing all tracked ICMP echo requests and their + corresponding replies. + """ self.request_replies.clear() - def _send_icmp_echo_request( - self, target_ip_address: IPv4Address, sequence: int = 0, identifier: Optional[int] = None, pings: int = 4 - ) -> Tuple[int, Union[int, None]]: - """ - Send an ICMP echo request (ping) to a target IP address and manage the sequence and identifier. - - :param target_ip_address: The target IP address to send the ping. - :param sequence: The sequence number of the echo request. Defaults to 0. - :param identifier: An optional identifier for the ICMP packet. If None, a default will be used. - :return: A tuple containing the next sequence number and the identifier, or (0, None) if the target IP address - was not found in the ARP cache. - """ - nic = self.software_manager.arp.get_arp_cache_nic(target_ip_address) - - if not nic: - return pings, None - - # ARP entry exists - sequence += 1 - target_mac_address = self.software_manager.arp.get_arp_cache_mac_address(target_ip_address) - - src_nic = self.software_manager.arp.get_arp_cache_nic(target_ip_address) - - # Network Layer - ip_packet = IPPacket( - src_ip_address=nic.ip_address, - dst_ip_address=target_ip_address, - protocol=IPProtocol.ICMP, - ) - # Data Link Layer - ethernet_header = EthernetHeader(src_mac_addr=src_nic.mac_address, dst_mac_addr=target_mac_address) - icmp_packet = ICMPPacket(identifier=identifier, sequence=sequence) - payload = secrets.token_urlsafe(int(32 / 1.3)) # Standard ICMP 32 bytes size - frame = Frame(ethernet=ethernet_header, ip=ip_packet, icmp=icmp_packet, payload=payload) - nic.send_frame(frame) - return sequence, icmp_packet.identifier - def ping(self, target_ip_address: Union[IPv4Address, str], pings: int = 4) -> bool: """ - Ping an IP address, performing a standard ICMP echo request/response. + Pings a target IP address by sending an ICMP echo request and waiting for a reply. - :param target_ip_address: The target IP address to ping. - :param pings: The number of pings to attempt, default is 4. - :return: True if the ping is successful, otherwise False. + :param target_ip_address: The IP address to be pinged. + :param pings: The number of echo requests to send. Defaults to 4. + :return: True if the ping was successful (i.e., if a reply was received for every request sent), otherwise + False. """ if not self._can_perform_action(): return False @@ -101,37 +76,79 @@ class ICMP(Service): return passed - def _process_icmp_echo_request(self, frame: Frame, from_nic: NIC, is_reattempt: bool = False): - if frame.icmp.icmp_type == ICMPType.ECHO_REQUEST: - if not is_reattempt: - self.sys_log.info(f"Received echo request from {frame.ip.src_ip_address}") - target_mac_address = self.software_manager.arp.get_arp_cache_mac_address(frame.ip.src_ip_address) + def _send_icmp_echo_request( + self, target_ip_address: IPv4Address, sequence: int = 0, identifier: Optional[int] = None, pings: int = 4 + ) -> Tuple[int, Union[int, None]]: + """ + Sends an ICMP echo request to a specified target IP address. - src_nic = self.software_manager.arp.get_arp_cache_nic(frame.ip.src_ip_address) - if not src_nic: - self.software_manager.arp.send_arp_request(frame.ip.src_ip_address) - self.process_icmp(frame=frame, from_nic=from_nic, is_reattempt=True) - return + :param target_ip_address: The target IP address for the echo request. + :param sequence: The sequence number of the echo request. + :param identifier: The identifier for the ICMP packet. If None, a default identifier is used. + :param pings: The number of pings to send. Defaults to 4. + :return: A tuple containing the next sequence number and the identifier. + """ + nic = self.software_manager.session_manager.resolve_outbound_nic(target_ip_address) - # Network Layer - ip_packet = IPPacket( - src_ip_address=src_nic.ip_address, dst_ip_address=frame.ip.src_ip_address, protocol=IPProtocol.ICMP + if not nic: + self.sys_log.error( + "Cannot send ICMP echo request as there is no outbound NIC to use. Try configuring the default gateway." ) - # Data Link Layer - ethernet_header = EthernetHeader(src_mac_addr=src_nic.mac_address, dst_mac_addr=target_mac_address) - icmp_reply_packet = ICMPPacket( - icmp_type=ICMPType.ECHO_REPLY, - icmp_code=0, - identifier=frame.icmp.identifier, - sequence=frame.icmp.sequence + 1, + return pings, None + + sequence += 1 + + icmp_packet = ICMPPacket(identifier=identifier, sequence=sequence) + payload = secrets.token_urlsafe(int(32 / 1.3)) # Standard ICMP 32 bytes size + + self.software_manager.session_manager.receive_payload_from_software_manager( + payload=payload, + dst_ip_address=target_ip_address, + dst_port=self.port, + ip_protocol=self.protocol, + icmp_packet=icmp_packet + ) + return sequence, icmp_packet.identifier + + def _process_icmp_echo_request(self, frame: Frame): + """ + Processes an ICMP echo request received by the service. + + :param frame: The network frame containing the ICMP echo request. + """ + self.sys_log.info(f"Received echo request from {frame.ip.src_ip_address}") + + nic = self.software_manager.session_manager.resolve_outbound_nic(frame.ip.src_ip_address) + + if not nic: + self.sys_log.error( + "Cannot send ICMP echo reply as there is no outbound NIC to use. Try configuring the default gateway." ) - payload = secrets.token_urlsafe(int(32 / 1.3)) # Standard ICMP 32 bytes size - frame = Frame(ethernet=ethernet_header, ip=ip_packet, icmp=icmp_reply_packet, payload=payload) - self.sys_log.info(f"Sending echo reply to {frame.ip.dst_ip_address}") + return - src_nic.send_frame(frame) + icmp_packet = ICMPPacket( + icmp_type=ICMPType.ECHO_REPLY, + icmp_code=0, + identifier=frame.icmp.identifier, + sequence=frame.icmp.sequence + 1, + ) + payload = secrets.token_urlsafe(int(32 / 1.3)) # Standard ICMP 32 bytes size + self.sys_log.info(f"Sending echo reply to {frame.ip.dst_ip_address}") - def _process_icmp_echo_reply(self, frame: Frame, from_nic: NIC, is_reattempt: bool = False): + self.software_manager.session_manager.receive_payload_from_software_manager( + payload=payload, + dst_ip_address=frame.ip.src_ip_address, + dst_port=self.port, + ip_protocol=self.protocol, + icmp_packet=icmp_packet + ) + + def _process_icmp_echo_reply(self, frame: Frame): + """ + Processes an ICMP echo reply received by the service, logging the reply details. + + :param frame: The network frame containing the ICMP echo reply. + """ time = frame.transmission_duration() time_str = f"{time}ms" if time > 0 else "<1ms" self.sys_log.info( @@ -146,14 +163,21 @@ class ICMP(Service): self.request_replies[frame.icmp.identifier] += 1 def receive(self, payload: Any, session_id: str, **kwargs) -> bool: + """ + Processes received data, handling ICMP echo requests and replies. + + :param payload: The payload received. + :param session_id: The session ID associated with the received data. + :param kwargs: Additional keyword arguments. + :return: True if the payload was processed successfully, otherwise False. + """ frame: Frame = kwargs["frame"] - from_nic = kwargs["from_nic"] if not frame.icmp: return False if frame.icmp.icmp_type == ICMPType.ECHO_REQUEST: - self._process_icmp_echo_request(frame, from_nic) + self._process_icmp_echo_request(frame) elif frame.icmp.icmp_type == ICMPType.ECHO_REPLY: - self._process_icmp_echo_reply(frame, from_nic) + self._process_icmp_echo_reply(frame) return True diff --git a/tests/integration_tests/network/test_switched_network.py b/tests/integration_tests/network/test_switched_network.py index 5b305702..103dda21 100644 --- a/tests/integration_tests/network/test_switched_network.py +++ b/tests/integration_tests/network/test_switched_network.py @@ -1,3 +1,4 @@ +from primaite.simulator.network.container import Network from primaite.simulator.network.hardware.base import Link, NodeOperatingState from primaite.simulator.network.hardware.nodes.computer import Computer from primaite.simulator.network.hardware.nodes.server import Server @@ -6,25 +7,30 @@ from primaite.simulator.network.hardware.nodes.switch import Switch def test_switched_network(): """Tests a node can ping another node via the switch.""" + network = Network() + client_1 = Computer( hostname="client_1", ip_address="192.168.1.10", subnet_mask="255.255.255.0", - default_gateway="192.168.1.0", - operating_state=NodeOperatingState.ON, + default_gateway="192.168.1.1", + start_up_duration=0, ) + client_1.power_on() server_1 = Server( - hostname=" server_1", + hostname="server_1", ip_address="192.168.1.11", subnet_mask="255.255.255.0", - default_gateway="192.168.1.11", - operating_state=NodeOperatingState.ON, + default_gateway="192.168.1.1", + start_up_duration=0, ) + server_1.power_on() - switch_1 = Switch(hostname="switch_1", num_ports=6, operating_state=NodeOperatingState.ON) + switch_1 = Switch(hostname="switch_1", start_up_duration=0) + switch_1.power_on() - Link(endpoint_a=client_1.ethernet_port[1], endpoint_b=switch_1.switch_ports[1]) - Link(endpoint_a=server_1.ethernet_port[1], endpoint_b=switch_1.switch_ports[2]) + network.connect(endpoint_a=client_1.ethernet_port[1], endpoint_b=switch_1.switch_ports[1]) + network.connect(endpoint_a=server_1.ethernet_port[1], endpoint_b=switch_1.switch_ports[2]) assert client_1.ping("192.168.1.11") diff --git a/tests/unit_tests/_primaite/_simulator/_network/_transmission/test_data_link_layer.py b/tests/unit_tests/_primaite/_simulator/_network/_transmission/test_data_link_layer.py index f9b89de5..1fbbd1c1 100644 --- a/tests/unit_tests/_primaite/_simulator/_network/_transmission/test_data_link_layer.py +++ b/tests/unit_tests/_primaite/_simulator/_network/_transmission/test_data_link_layer.py @@ -1,7 +1,8 @@ import pytest +from primaite.simulator.network.protocols.icmp import ICMPPacket from primaite.simulator.network.transmission.data_link_layer import EthernetHeader, Frame -from primaite.simulator.network.transmission.network_layer import ICMPPacket, IPPacket, IPProtocol, Precedence +from primaite.simulator.network.transmission.network_layer import IPPacket, IPProtocol, Precedence from primaite.simulator.network.transmission.primaite_layer import AgentSource, DataStatus from primaite.simulator.network.transmission.transport_layer import Port, TCPFlags, TCPHeader, UDPHeader diff --git a/tests/unit_tests/_primaite/_simulator/_network/_transmission/test_network_layer.py b/tests/unit_tests/_primaite/_simulator/_network/_transmission/test_network_layer.py index a7189452..0ea98107 100644 --- a/tests/unit_tests/_primaite/_simulator/_network/_transmission/test_network_layer.py +++ b/tests/unit_tests/_primaite/_simulator/_network/_transmission/test_network_layer.py @@ -1,6 +1,6 @@ import pytest -from primaite.simulator.network.transmission.network_layer import ICMPPacket, ICMPType +from primaite.simulator.network.protocols.icmp import ICMPPacket, ICMPType def test_icmp_minimal_header_creation(): From cb002d644f872091821d64a8a6bc81c038233bbe Mon Sep 17 00:00:00 2001 From: Chris McCarthy Date: Fri, 2 Feb 2024 16:55:43 +0000 Subject: [PATCH 05/39] #2248 - Tidying up the tests so that they use updated networks --- .../simulator/network/hardware/base.py | 2 +- .../network/transmission/network_layer.py | 9 +-- .../simulator/system/core/session_manager.py | 16 +++-- .../simulator/system/core/software_manager.py | 1 + src/primaite/simulator/system/software.py | 7 ++- tests/conftest.py | 59 ++++++++++++++++--- .../network/test_broadcast.py | 1 + .../network/test_frame_transmission.py | 48 ++++++++++----- .../network/test_link_connection.py | 24 -------- .../network/test_switched_network.py | 30 +--------- 10 files changed, 104 insertions(+), 93 deletions(-) delete mode 100644 tests/integration_tests/network/test_link_connection.py diff --git a/src/primaite/simulator/network/hardware/base.py b/src/primaite/simulator/network/hardware/base.py index 403d9638..69f93f51 100644 --- a/src/primaite/simulator/network/hardware/base.py +++ b/src/primaite/simulator/network/hardware/base.py @@ -679,7 +679,7 @@ class Node(SimComponent): if not kwargs.get("sys_log"): kwargs["sys_log"] = SysLog(kwargs["hostname"]) if not kwargs.get("session_manager"): - kwargs["session_manager"] = SessionManager(sys_log=kwargs.get("sys_log"), arp_cache=kwargs.get("arp")) + kwargs["session_manager"] = SessionManager(sys_log=kwargs.get("sys_log")) if not kwargs.get("root"): kwargs["root"] = SIM_OUTPUT.path / kwargs["hostname"] if not kwargs.get("file_system"): diff --git a/src/primaite/simulator/network/transmission/network_layer.py b/src/primaite/simulator/network/transmission/network_layer.py index b581becd..38fc1977 100644 --- a/src/primaite/simulator/network/transmission/network_layer.py +++ b/src/primaite/simulator/network/transmission/network_layer.py @@ -1,6 +1,6 @@ import secrets from enum import Enum -from ipaddress import IPv4Address +from ipaddress import IPv4Address, IPv4Network from typing import Union from pydantic import BaseModel, field_validator, validate_call @@ -86,10 +86,3 @@ class IPPacket(BaseModel): "Time to Live (TTL) for the packet." precedence: Precedence = Precedence.ROUTINE "Precedence level for Quality of Service (default is Precedence.ROUTINE)." - - def __init__(self, **kwargs): - if not isinstance(kwargs["src_ip_address"], IPv4Address): - kwargs["src_ip_address"] = IPv4Address(kwargs["src_ip_address"]) - if not isinstance(kwargs["dst_ip_address"], IPv4Address): - kwargs["dst_ip_address"] = IPv4Address(kwargs["dst_ip_address"]) - super().__init__(**kwargs) diff --git a/src/primaite/simulator/system/core/session_manager.py b/src/primaite/simulator/system/core/session_manager.py index a748b7df..ce05193f 100644 --- a/src/primaite/simulator/system/core/session_manager.py +++ b/src/primaite/simulator/system/core/session_manager.py @@ -75,7 +75,7 @@ class SessionManager: :param arp_cache: A reference to the ARP cache component. """ - def __init__(self, sys_log: SysLog, arp_cache: "ARPCache"): + def __init__(self, sys_log: SysLog): self.sessions_by_key: Dict[ Tuple[IPProtocol, IPv4Address, IPv4Address, Optional[Port], Optional[Port]], Session ] = {} @@ -150,8 +150,8 @@ class SessionManager: def resolve_outbound_transmission_details( self, dst_ip_address: Optional[Union[IPv4Address, IPv4Network]] = None, session_id: Optional[str] = None - ) -> Tuple[Optional["NIC"], Optional[str], Optional[IPProtocol], bool]: - if not isinstance(dst_ip_address, IPv4Address): + ) -> Tuple[Optional["NIC"], Optional[str], IPv4Address, Optional[IPProtocol], bool]: + if not isinstance(dst_ip_address, (IPv4Address, IPv4Network)): dst_ip_address = IPv4Address(dst_ip_address) is_broadcast = False outbound_nic = None @@ -192,7 +192,7 @@ class SessionManager: if use_default_gateway: dst_mac_address = self.software_manager.arp.get_default_gateway_mac_address() outbound_nic = self.software_manager.arp.get_default_gateway_nic() - return outbound_nic, dst_mac_address, protocol, is_broadcast + return outbound_nic, dst_mac_address, dst_ip_address, protocol, is_broadcast def receive_payload_from_software_manager( self, @@ -226,14 +226,13 @@ class SessionManager: is_broadcast = payload.request ip_protocol = IPProtocol.UDP else: - outbound_nic, dst_mac_address, protocol, is_broadcast = self.resolve_outbound_transmission_details( + vals = self.resolve_outbound_transmission_details( dst_ip_address=dst_ip_address, session_id=session_id ) - + outbound_nic, dst_mac_address, dst_ip_address, protocol, is_broadcast = vals if protocol: ip_protocol = protocol - # Check if outbound NIC and destination MAC address are resolved if not outbound_nic or not dst_mac_address: return False @@ -241,7 +240,7 @@ class SessionManager: tcp_header = None udp_header = None if ip_protocol == IPProtocol.TCP: - TCPHeader( + tcp_header = TCPHeader( src_port=dst_port, dst_port=dst_port, ) @@ -250,7 +249,6 @@ class SessionManager: src_port=dst_port, dst_port=dst_port, ) - # Construct the frame for transmission frame = Frame( ethernet=EthernetHeader(src_mac_addr=outbound_nic.mac_address, dst_mac_addr=dst_mac_address), diff --git a/src/primaite/simulator/system/core/software_manager.py b/src/primaite/simulator/system/core/software_manager.py index ac765018..99dc5f38 100644 --- a/src/primaite/simulator/system/core/software_manager.py +++ b/src/primaite/simulator/system/core/software_manager.py @@ -162,6 +162,7 @@ class SoftwareManager: payload=payload, dst_ip_address=dest_ip_address, dst_port=dest_port, + ip_protocol=ip_protocol, session_id=session_id, ) diff --git a/src/primaite/simulator/system/software.py b/src/primaite/simulator/system/software.py index 8930fa2f..91629f9a 100644 --- a/src/primaite/simulator/system/software.py +++ b/src/primaite/simulator/system/software.py @@ -356,6 +356,7 @@ class IOSoftware(Software): session_id: Optional[str] = None, dest_ip_address: Optional[Union[IPv4Address, IPv4Network]] = None, dest_port: Optional[Port] = None, + ip_protocol: IPProtocol = IPProtocol.TCP, **kwargs, ) -> bool: """ @@ -375,7 +376,11 @@ class IOSoftware(Software): return False return self.software_manager.send_payload_to_session_manager( - payload=payload, dest_ip_address=dest_ip_address, dest_port=dest_port, session_id=session_id + payload=payload, + dest_ip_address=dest_ip_address, + dest_port=dest_port, + ip_protocol=ip_protocol, + session_id=session_id ) @abstractmethod diff --git a/tests/conftest.py b/tests/conftest.py index c37226a5..8e458878 100644 --- a/tests/conftest.py +++ b/tests/conftest.py @@ -134,31 +134,72 @@ def temp_primaite_session(request, monkeypatch) -> TempPrimaiteSession: @pytest.fixture(scope="function") def client_server() -> Tuple[Computer, Server]: + network = Network() + # Create Computer - computer: Computer = Computer( - hostname="test_computer", - ip_address="192.168.0.1", + computer = Computer( + hostname="computer", + ip_address="192.168.1.2", subnet_mask="255.255.255.0", default_gateway="192.168.1.1", - operating_state=NodeOperatingState.ON, + start_up_duration=0, ) + computer.power_on() # Create Server server = Server( - hostname="server", ip_address="192.168.0.2", subnet_mask="255.255.255.0", operating_state=NodeOperatingState.ON + hostname="server", + ip_address="192.168.1.3", + subnet_mask="255.255.255.0", + default_gateway="192.168.1.1", + start_up_duration=0, ) + server.power_on() # Connect Computer and Server - computer_nic = computer.nics[next(iter(computer.nics))] - server_nic = server.nics[next(iter(server.nics))] - link = Link(endpoint_a=computer_nic, endpoint_b=server_nic) + network.connect(computer.ethernet_port[1], server.ethernet_port[1]) # Should be linked - assert link.is_up + assert next(iter(network.links.values())).is_up return computer, server +@pytest.fixture(scope="function") +def client_switch_server() -> Tuple[Computer, Switch, Server]: + network = Network() + + # Create Computer + computer = Computer( + hostname="computer", + ip_address="192.168.1.2", + subnet_mask="255.255.255.0", + default_gateway="192.168.1.1", + start_up_duration=0, + ) + computer.power_on() + + # Create Server + server = Server( + hostname="server", + ip_address="192.168.1.3", + subnet_mask="255.255.255.0", + default_gateway="192.168.1.1", + start_up_duration=0, + ) + server.power_on() + + switch = Switch(hostname="switch", start_up_duration=0) + switch.power_on() + + network.connect(endpoint_a=computer.ethernet_port[1], endpoint_b=switch.switch_ports[1]) + network.connect(endpoint_a=server.ethernet_port[1], endpoint_b=switch.switch_ports[2]) + + assert all(link.is_up for link in network.links.values()) + + return computer, switch, server + + @pytest.fixture(scope="function") def example_network() -> Network: """ diff --git a/tests/integration_tests/network/test_broadcast.py b/tests/integration_tests/network/test_broadcast.py index b9ecb28b..5fb0917e 100644 --- a/tests/integration_tests/network/test_broadcast.py +++ b/tests/integration_tests/network/test_broadcast.py @@ -41,6 +41,7 @@ class BroadcastService(Service): payload="broadcast", dest_ip_address=ip_network, dest_port=Port.HTTP, + ip_protocol=self.protocol ) diff --git a/tests/integration_tests/network/test_frame_transmission.py b/tests/integration_tests/network/test_frame_transmission.py index 7da9fe76..527e4b4c 100644 --- a/tests/integration_tests/network/test_frame_transmission.py +++ b/tests/integration_tests/network/test_frame_transmission.py @@ -1,34 +1,54 @@ -from primaite.simulator.network.hardware.base import Link, NIC, Node, NodeOperatingState +from primaite.simulator.network.container import Network +from primaite.simulator.network.hardware.nodes.computer import Computer +from primaite.simulator.network.hardware.nodes.server import Server +from primaite.simulator.network.hardware.nodes.switch import Switch + def test_node_to_node_ping(): - """Tests two Nodes are able to ping each other.""" - node_a = Node(hostname="node_a", operating_state=NodeOperatingState.ON) - nic_a = NIC(ip_address="192.168.0.10", subnet_mask="255.255.255.0", operating_state=NodeOperatingState.ON) - node_a.connect_nic(nic_a) + """Tests two Computers are able to ping each other.""" + network = Network() - node_b = Node(hostname="node_b", operating_state=NodeOperatingState.ON) - nic_b = NIC(ip_address="192.168.0.11", subnet_mask="255.255.255.0") - node_b.connect_nic(nic_b) + client_1 = Computer( + hostname="client_1", + ip_address="192.168.1.10", + subnet_mask="255.255.255.0", + default_gateway="192.168.1.1", + start_up_duration=0, + ) + client_1.power_on() - Link(endpoint_a=nic_a, endpoint_b=nic_b) + server_1 = Server( + hostname="server_1", + ip_address="192.168.1.11", + subnet_mask="255.255.255.0", + default_gateway="192.168.1.1", + start_up_duration=0, + ) + server_1.power_on() - assert node_a.ping("192.168.0.11") + switch_1 = Switch(hostname="switch_1", start_up_duration=0) + switch_1.power_on() + + network.connect(endpoint_a=client_1.ethernet_port[1], endpoint_b=switch_1.switch_ports[1]) + network.connect(endpoint_a=server_1.ethernet_port[1], endpoint_b=switch_1.switch_ports[2]) + + assert client_1.ping("192.168.1.11") def test_multi_nic(): - """Tests that Nodes with multiple NICs can ping each other and the data go across the correct links.""" - node_a = Node(hostname="node_a", operating_state=NodeOperatingState.ON) + """Tests that Computers with multiple NICs can ping each other and the data go across the correct links.""" + node_a = Computer(hostname="node_a", operating_state=ComputerOperatingState.ON) nic_a = NIC(ip_address="192.168.0.10", subnet_mask="255.255.255.0") node_a.connect_nic(nic_a) - node_b = Node(hostname="node_b", operating_state=NodeOperatingState.ON) + node_b = Computer(hostname="node_b", operating_state=ComputerOperatingState.ON) nic_b1 = NIC(ip_address="192.168.0.11", subnet_mask="255.255.255.0") nic_b2 = NIC(ip_address="10.0.0.12", subnet_mask="255.0.0.0") node_b.connect_nic(nic_b1) node_b.connect_nic(nic_b2) - node_c = Node(hostname="node_c", operating_state=NodeOperatingState.ON) + node_c = Computer(hostname="node_c", operating_state=ComputerOperatingState.ON) nic_c = NIC(ip_address="10.0.0.13", subnet_mask="255.0.0.0") node_c.connect_nic(nic_c) diff --git a/tests/integration_tests/network/test_link_connection.py b/tests/integration_tests/network/test_link_connection.py deleted file mode 100644 index c6aeac24..00000000 --- a/tests/integration_tests/network/test_link_connection.py +++ /dev/null @@ -1,24 +0,0 @@ -from primaite.simulator.network.hardware.base import Link, NIC, Node, NodeOperatingState - - -def test_link_up(): - """Tests Nodes, NICs, and Links can all be connected and be in an enabled/up state.""" - node_a = Node(hostname="node_a", operating_state=NodeOperatingState.ON) - nic_a = NIC(ip_address="192.168.0.10", subnet_mask="255.255.255.0") - node_a.connect_nic(nic_a) - - node_b = Node(hostname="node_b", operating_state=NodeOperatingState.ON) - nic_b = NIC(ip_address="192.168.0.11", subnet_mask="255.255.255.0") - node_b.connect_nic(nic_b) - - link = Link(endpoint_a=nic_a, endpoint_b=nic_b) - - assert nic_a.enabled - assert nic_b.enabled - assert link.is_up - - -def test_ping_between_computer_and_server(client_server): - computer, server = client_server - - assert computer.ping(target_ip_address=server.nics[next(iter(server.nics))].ip_address) diff --git a/tests/integration_tests/network/test_switched_network.py b/tests/integration_tests/network/test_switched_network.py index 103dda21..8a2bd0a2 100644 --- a/tests/integration_tests/network/test_switched_network.py +++ b/tests/integration_tests/network/test_switched_network.py @@ -5,32 +5,8 @@ from primaite.simulator.network.hardware.nodes.server import Server from primaite.simulator.network.hardware.nodes.switch import Switch -def test_switched_network(): +def test_switched_network(client_switch_server): """Tests a node can ping another node via the switch.""" - network = Network() + computer, switch, server = client_switch_server - client_1 = Computer( - hostname="client_1", - ip_address="192.168.1.10", - subnet_mask="255.255.255.0", - default_gateway="192.168.1.1", - start_up_duration=0, - ) - client_1.power_on() - - server_1 = Server( - hostname="server_1", - ip_address="192.168.1.11", - subnet_mask="255.255.255.0", - default_gateway="192.168.1.1", - start_up_duration=0, - ) - server_1.power_on() - - switch_1 = Switch(hostname="switch_1", start_up_duration=0) - switch_1.power_on() - - network.connect(endpoint_a=client_1.ethernet_port[1], endpoint_b=switch_1.switch_ports[1]) - network.connect(endpoint_a=server_1.ethernet_port[1], endpoint_b=switch_1.switch_ports[2]) - - assert client_1.ping("192.168.1.11") + assert computer.ping(server.ethernet_port[1].ip_address) From a0253ce6c44566184d805cbfdbdad1cd1de9f0ce Mon Sep 17 00:00:00 2001 From: Chris McCarthy Date: Fri, 2 Feb 2024 17:14:34 +0000 Subject: [PATCH 06/39] #2248 - TSome further fixess to ARP. Also refactored PCAP to log inbound and outbound frames separately --- .../simulator/network/hardware/base.py | 8 +- .../network/hardware/nodes/router.py | 2 +- .../simulator/system/core/packet_capture.py | 59 +++++--- .../simulator/system/core/session_manager.py | 2 +- .../simulator/system/services/arp/arp.py | 140 +++++++++--------- .../simulator/system/services/arp/host_arp.py | 2 +- 6 files changed, 117 insertions(+), 96 deletions(-) diff --git a/src/primaite/simulator/network/hardware/base.py b/src/primaite/simulator/network/hardware/base.py index 69f93f51..9edf7518 100644 --- a/src/primaite/simulator/network/hardware/base.py +++ b/src/primaite/simulator/network/hardware/base.py @@ -266,7 +266,7 @@ class NIC(SimComponent): """ if self.enabled: frame.set_sent_timestamp() - self.pcap.capture(frame) + self.pcap.capture_outbound(frame) self._connected_link.transmit_frame(sender_nic=self, frame=frame) return True # Cannot send Frame as the NIC is not enabled @@ -295,7 +295,7 @@ class NIC(SimComponent): self._connected_node.sys_log.info("Frame discarded as TTL limit reached") return False frame.set_received_timestamp() - self.pcap.capture(frame) + self.pcap.capture_inbound(frame) # If this destination or is broadcast accept_frame = False @@ -442,7 +442,7 @@ class SwitchPort(SimComponent): :param frame: The network frame to be sent. """ if self.enabled: - self.pcap.capture(frame) + self.pcap.capture_outbound(frame) self._connected_link.transmit_frame(sender_nic=self, frame=frame) return True # Cannot send Frame as the SwitchPort is not enabled @@ -461,7 +461,7 @@ class SwitchPort(SimComponent): if frame.ip and frame.ip.ttl < 1: self._connected_node.sys_log.info("Frame discarded as TTL limit reached") return False - self.pcap.capture(frame) + self.pcap.capture_inbound(frame) connected_node: Node = self._connected_node connected_node.forward_frame(frame=frame, incoming_port=self) return True diff --git a/src/primaite/simulator/network/hardware/nodes/router.py b/src/primaite/simulator/network/hardware/nodes/router.py index 34eb0423..69717ae6 100644 --- a/src/primaite/simulator/network/hardware/nodes/router.py +++ b/src/primaite/simulator/network/hardware/nodes/router.py @@ -558,7 +558,7 @@ class RouterNIC(NIC): self._connected_node.sys_log.info("Frame discarded as TTL limit reached") return False frame.set_received_timestamp() - self.pcap.capture(frame) + self.pcap.capture_inbound(frame) # If this destination or is broadcast if frame.ethernet.dst_mac_addr == self.mac_address or frame.ethernet.dst_mac_addr == "ff:ff:ff:ff:ff:ff": self._connected_node.receive_frame(frame=frame, from_nic=self) diff --git a/src/primaite/simulator/system/core/packet_capture.py b/src/primaite/simulator/system/core/packet_capture.py index bfb6a055..d3a14d2a 100644 --- a/src/primaite/simulator/system/core/packet_capture.py +++ b/src/primaite/simulator/system/core/packet_capture.py @@ -35,16 +35,17 @@ class PacketCapture: self.switch_port_number = switch_port_number "The SwitchPort number." + self.inbound_logger = None + self.outbound_logger = None + self.current_episode: int = 1 - self.setup_logger() + self.setup_logger(outbound=False) + self.setup_logger(outbound=True) - def setup_logger(self): + def setup_logger(self, outbound: bool = False): """Set up the logger configuration.""" - if not SIM_OUTPUT.save_pcap_logs: - return - - log_path = self._get_log_path() + log_path = self._get_log_path(outbound) file_handler = logging.FileHandler(filename=log_path) file_handler.setLevel(60) # Custom log level > CRITICAL to prevent any unwanted standard DEBUG-CRITICAL logs @@ -52,11 +53,17 @@ class PacketCapture: log_format = "%(message)s" file_handler.setFormatter(logging.Formatter(log_format)) - self.logger = logging.getLogger(self._logger_name) - self.logger.setLevel(60) # Custom log level > CRITICAL to prevent any unwanted standard DEBUG-CRITICAL logs - self.logger.addHandler(file_handler) + if outbound: + self.outbound_logger = logging.getLogger(self._get_logger_name(outbound)) + logger = self.outbound_logger + else: + self.inbound_logger = logging.getLogger(self._get_logger_name(outbound)) + logger = self.inbound_logger - self.logger.addFilter(_JSONFilter()) + logger.setLevel(60) # Custom log level > CRITICAL to prevent any unwanted standard DEBUG-CRITICAL logs + logger.addHandler(file_handler) + + logger.addFilter(_JSONFilter()) def read(self) -> List[Dict[str, Any]]: """ @@ -70,27 +77,35 @@ class PacketCapture: frames.append(json.loads(line.rstrip())) return frames - @property - def _logger_name(self) -> str: + def _get_logger_name(self, outbound: bool = False) -> str: """Get PCAP the logger name.""" if self.ip_address: - return f"{self.hostname}_{self.ip_address}_pcap" + return f"{self.hostname}_{self.ip_address}_{'outbound' if outbound else 'inbound'}_pcap" if self.switch_port_number: - return f"{self.hostname}_port-{self.switch_port_number}_pcap" - return f"{self.hostname}_pcap" + return f"{self.hostname}_port-{self.switch_port_number}_{'outbound' if outbound else 'inbound'}_pcap" + return f"{self.hostname}_{'outbound' if outbound else 'inbound'}_pcap" - def _get_log_path(self) -> Path: + def _get_log_path(self, outbound: bool = False) -> Path: """Get the path for the log file.""" root = SIM_OUTPUT.path / f"episode_{self.current_episode}" / self.hostname root.mkdir(exist_ok=True, parents=True) - return root / f"{self._logger_name}.log" + return root / f"{self._get_logger_name(outbound)}.log" - def capture(self, frame): # noqa - I'll have a circular import and cant use if TYPE_CHECKING ;( + def capture_inbound(self, frame): # noqa - I'll have a circular import and cant use if TYPE_CHECKING ;( """ - Capture a Frame and log it. + Capture an inbound Frame and log it. :param frame: The PCAP frame to capture. """ - if SIM_OUTPUT.save_pcap_logs: - msg = frame.model_dump_json() - self.logger.log(level=60, msg=msg) # Log at custom log level > CRITICAL + msg = frame.model_dump_json() + self.inbound_logger.log(level=60, msg=msg) # Log at custom log level > CRITICAL + + def capture_outbound(self, frame): # noqa - I'll have a circular import and cant use if TYPE_CHECKING ;( + """ + Capture an inbound Frame and log it. + + :param frame: The PCAP frame to capture. + """ + msg = frame.model_dump_json() + self.outbound_logger.log(level=60, msg=msg) # Log at custom log level > CRITICAL + diff --git a/src/primaite/simulator/system/core/session_manager.py b/src/primaite/simulator/system/core/session_manager.py index ce05193f..2120cde3 100644 --- a/src/primaite/simulator/system/core/session_manager.py +++ b/src/primaite/simulator/system/core/session_manager.py @@ -221,7 +221,7 @@ class SessionManager: if payload.request: dst_mac_address = "ff:ff:ff:ff:ff:ff" else: - dst_mac_address = payload.sender_mac_addr + dst_mac_address = payload.target_mac_addr outbound_nic = self.resolve_outbound_nic(payload.target_ip_address) is_broadcast = payload.request ip_protocol = IPProtocol.UDP diff --git a/src/primaite/simulator/system/services/arp/arp.py b/src/primaite/simulator/system/services/arp/arp.py index 28a2485c..c5b30d69 100644 --- a/src/primaite/simulator/system/services/arp/arp.py +++ b/src/primaite/simulator/system/services/arp/arp.py @@ -15,6 +15,12 @@ from primaite.simulator.system.services.service import Service class ARP(Service): + """ + The ARP (Address Resolution Protocol) Service. + + Manages ARP for resolving network layer addresses into link layer addresses. It maintains an ARP cache, + sends ARP requests and replies, and processes incoming ARP packets. + """ arp: Dict[IPv4Address, ARPEntry] = {} def __init__(self, **kwargs): @@ -27,7 +33,11 @@ class ARP(Service): pass def show(self, markdown: bool = False): - """Prints a table of ARC Cache.""" + """ + Prints the current state of the ARP cache in a table format. + + :param markdown: If True, format the output as Markdown. Otherwise, use plain text. + """ table = PrettyTable(["IP Address", "MAC Address", "Via"]) if markdown: table.set_style(MARKDOWN) @@ -71,37 +81,28 @@ class ARP(Service): @abstractmethod def get_arp_cache_mac_address(self, ip_address: IPv4Address) -> Optional[str]: """ - Get the MAC address associated with an IP address. + Retrieves the MAC address associated with a given IP address from the ARP cache. - :param ip_address: The IP address to look up in the cache. - :return: The MAC address associated with the IP address, or None if not found. + :param ip_address: The IP address to look up. + :return: The associated MAC address, if found. Otherwise, returns None. """ pass @abstractmethod def get_arp_cache_nic(self, ip_address: IPv4Address) -> Optional[NIC]: """ - Get the NIC associated with an IP address. + Retrieves the NIC associated with a given IP address from the ARP cache. - :param ip_address: The IP address to look up in the cache. - :return: The NIC associated with the IP address, or None if not found. + :param ip_address: The IP address to look up. + :return: The associated NIC, if found. Otherwise, returns None. """ pass def send_arp_request(self, target_ip_address: Union[IPv4Address, str]): """ - Perform a standard ARP request for a given target IP address. + Sends an ARP request to resolve the MAC address of a target IP address. - Broadcasts the request through all enabled NICs to determine the MAC address corresponding to the target IP - address. This method can be configured to ignore specific networks when sending out ARP requests, - which is useful in environments where certain addresses should not be queried. - - :param target_ip_address: The target IP address to send an ARP request for. - :param ignore_networks: An optional list of IPv4 addresses representing networks to be excluded from the ARP - request broadcast. Each address in this list indicates a network which will not be queried during the ARP - request process. This is particularly useful in complex network environments where traffic should be - minimized or controlled to specific subnets. It is mainly used by the router to prevent ARP requests being - sent back to their source. + :param target_ip_address: The target IP address for which the MAC address is being requested. """ outbound_nic = self.software_manager.session_manager.resolve_outbound_nic(target_ip_address) if outbound_nic: @@ -112,68 +113,59 @@ class ARP(Service): target_ip_address=target_ip_address, ) self.software_manager.session_manager.receive_payload_from_software_manager( - payload=arp_packet, dst_ip_address=target_ip_address, dst_port=Port.ARP, ip_protocol=self.protocol + payload=arp_packet, dst_ip_address=target_ip_address, dst_port=self.port, ip_protocol=self.protocol ) else: - print(f"failed for {target_ip_address}") - - def send_arp_reply(self, arp_reply: ARPPacket, from_nic: NIC): - """ - Send an ARP reply back through the NIC it came from. - - :param arp_reply: The ARP reply to send. - :param from_nic: The NIC to send the ARP reply from. - """ - self.sys_log.info( - f"Sending ARP reply from {arp_reply.sender_mac_addr}/{arp_reply.sender_ip_address} " - f"to {arp_reply.target_ip_address}/{arp_reply.target_mac_addr} " - ) - udp_header = UDPHeader(src_port=Port.ARP, dst_port=Port.ARP) - - ip_packet = IPPacket( - src_ip_address=arp_reply.sender_ip_address, - dst_ip_address=arp_reply.target_ip_address, - protocol=IPProtocol.UDP, - ) - - ethernet_header = EthernetHeader(src_mac_addr=arp_reply.sender_mac_addr, dst_mac_addr=arp_reply.target_mac_addr) - - frame = Frame(ethernet=ethernet_header, ip=ip_packet, udp=udp_header, payload=arp_reply) - from_nic.send_frame(frame) - - def process_arp_packet(self, from_nic: NIC, arp_packet: ARPPacket): - """ - Process a received ARP packet, handling both ARP requests and responses. - - If an ARP request is received for the local IP, a response is sent back. - If an ARP response is received, the ARP cache is updated with the new entry. - - :param from_nic: The NIC that received the ARP packet. - :param arp_packet: The ARP packet to be processed. - """ - - # Unmatched ARP Request - if arp_packet.target_ip_address != from_nic.ip_address: - self.sys_log.info( - f"Ignoring ARP request for {arp_packet.target_ip_address}. Current IP address is {from_nic.ip_address}" + self.sys_log.error( + "Cannot send ARP request as there is no outbound NIC to use. Try configuring the default gateway." + ) + + def send_arp_reply(self, arp_reply: ARPPacket): + """ + Sends an ARP reply in response to an ARP request. + + :param arp_reply: The ARP packet containing the reply. + :param from_nic: The NIC from which the ARP reply is sent. + """ + + outbound_nic = self.software_manager.session_manager.resolve_outbound_nic(arp_reply.target_ip_address) + if outbound_nic: + self.sys_log.info( + f"Sending ARP reply from {arp_reply.sender_mac_addr}/{arp_reply.sender_ip_address} " + f"to {arp_reply.target_ip_address}/{arp_reply.target_mac_addr} " + ) + self.software_manager.session_manager.receive_payload_from_software_manager( + payload=arp_reply, + dst_ip_address=arp_reply.target_ip_address, + dst_port=self.port, + ip_protocol=self.protocol + ) + else: + self.sys_log.error( + "Cannot send ARP reply as there is no outbound NIC to use. Try configuring the default gateway." ) - return - # Matched ARP request - self.add_arp_cache_entry( - ip_address=arp_packet.sender_ip_address, mac_address=arp_packet.sender_mac_addr, nic=from_nic - ) - arp_packet = arp_packet.generate_reply(from_nic.mac_address) - self.send_arp_reply(arp_packet, from_nic) @abstractmethod def _process_arp_request(self, arp_packet: ARPPacket, from_nic: NIC): + """ + Processes an incoming ARP request. + + :param arp_packet: The ARP packet containing the request. + :param from_nic: The NIC that received the ARP request. + """ self.sys_log.info( f"Received ARP request for {arp_packet.target_ip_address} from " f"{arp_packet.sender_mac_addr}/{arp_packet.sender_ip_address} " ) def _process_arp_reply(self, arp_packet: ARPPacket, from_nic: NIC): + """ + Processes an incoming ARP reply. + + :param arp_packet: The ARP packet containing the reply. + :param from_nic: The NIC that received the ARP reply. + """ self.sys_log.info( f"Received ARP response for {arp_packet.sender_ip_address} " f"from {arp_packet.sender_mac_addr} via NIC {from_nic}" @@ -183,6 +175,14 @@ class ARP(Service): ) def receive(self, payload: Any, session_id: str, **kwargs) -> bool: + """ + Processes received data, handling ARP packets. + + :param payload: The payload received. + :param session_id: The session ID associated with the received data. + :param kwargs: Additional keyword arguments. + :return: True if the payload was processed successfully, otherwise False. + """ if not isinstance(payload, ARPPacket): print("failied on payload check", type(payload)) return False @@ -194,4 +194,10 @@ class ARP(Service): self._process_arp_reply(arp_packet=payload, from_nic=from_nic) def __contains__(self, item: Any) -> bool: + """ + Checks if an item is in the ARP cache. + + :param item: The item to check. + :return: True if the item is in the cache, otherwise False. + """ return item in self.arp diff --git a/src/primaite/simulator/system/services/arp/host_arp.py b/src/primaite/simulator/system/services/arp/host_arp.py index f3e70838..4d6f7738 100644 --- a/src/primaite/simulator/system/services/arp/host_arp.py +++ b/src/primaite/simulator/system/services/arp/host_arp.py @@ -92,4 +92,4 @@ class HostARP(ARP): ip_address=arp_packet.sender_ip_address, mac_address=arp_packet.sender_mac_addr, nic=from_nic ) arp_packet = arp_packet.generate_reply(from_nic.mac_address) - self.send_arp_reply(arp_packet, from_nic) + self.send_arp_reply(arp_packet) From 7bbfd564fb75be750ab8fbf5d228e636d5030016 Mon Sep 17 00:00:00 2001 From: Chris McCarthy Date: Mon, 5 Feb 2024 08:44:10 +0000 Subject: [PATCH 07/39] #2248 - Big refactor of base with all Network Interface subclasses created to allow for proper management of ports on devices as it was starting to get messy with the Router. Some routing tests still need fixing as ARP doesn't seem to be working properly --- docs/source/config.rst | 2 +- .../network/base_hardware.rst | 2 +- .../config/_package_data/example_config.yaml | 2 +- .../example_config_2_rl_agents.yaml | 2 +- src/primaite/game/agent/actions.py | 14 +- src/primaite/game/agent/observations.py | 30 +- src/primaite/game/game.py | 19 +- src/primaite/notebooks/uc2_demo.ipynb | 46 +- src/primaite/simulator/core.py | 6 +- src/primaite/simulator/network/container.py | 26 +- src/primaite/simulator/network/creation.py | 12 +- .../simulator/network/hardware/base.py | 854 +++++++++--------- .../hardware/network_interface/__init__.py | 0 .../network_interface/layer_3_interface.py | 9 + .../network_interface/wired/__init__.py | 0 .../wired/router_interface.py | 0 .../network_interface/wireless/__init__.py | 0 .../wireless/wireless_access_point.py | 84 ++ .../wireless/wireless_nic.py | 81 ++ .../simulator/network/hardware/nodes/host.py | 63 -- .../network/hardware/nodes/host/__init__.py | 0 .../hardware/nodes/{ => host}/computer.py | 8 +- .../network/hardware/nodes/host/host_node.py | 354 ++++++++ .../hardware/nodes/{ => host}/server.py | 6 +- .../hardware/nodes/network/__init__.py | 0 .../hardware/nodes/network/network_node.py | 9 + .../hardware/nodes/{ => network}/router.py | 413 ++++++--- .../hardware/nodes/{ => network}/switch.py | 95 +- src/primaite/simulator/network/networks.py | 39 +- .../simulator/network/protocols/arp.py | 5 +- .../simulator/system/core/packet_capture.py | 10 +- .../simulator/system/core/session_manager.py | 76 +- .../simulator/system/core/software_manager.py | 4 +- .../simulator/system/services/arp/arp.py | 83 +- .../simulator/system/services/arp/host_arp.py | 95 -- .../system/services/arp/router_arp.py | 142 ++- .../simulator/system/services/icmp/icmp.py | 13 +- .../system/services/icmp/router_icmp.py | 24 +- src/primaite/utils/validators.py | 40 + .../assets/configs/bad_primaite_session.yaml | 2 +- .../configs/eval_only_primaite_session.yaml | 2 +- tests/assets/configs/multi_agent_session.yaml | 2 +- .../assets/configs/test_primaite_session.yaml | 2 +- .../configs/train_only_primaite_session.yaml | 2 +- tests/conftest.py | 71 +- .../test_uc2_data_manipulation_scenario.py | 4 +- .../test_action_integration.py | 14 +- .../game_layer/test_observations.py | 2 +- .../network/test_broadcast.py | 12 +- .../network/test_frame_transmission.py | 10 +- .../network/test_network_creation.py | 31 +- .../integration_tests/network/test_routing.py | 57 +- .../network/test_switched_network.py | 9 +- .../test_dos_bot_and_server.py | 10 +- .../system/test_application_on_node.py | 2 +- .../system/test_database_on_node.py | 2 +- .../system/test_dns_client_server.py | 8 +- .../system/test_ftp_client_server.py | 11 +- .../system/test_ntp_client_server.py | 6 +- .../system/test_service_on_node.py | 4 +- .../system/test_web_client_server.py | 14 +- .../test_web_client_server_and_database.py | 17 +- .../_network/_hardware/nodes/test_acl.py | 2 +- .../_network/_hardware/nodes/test_switch.py | 2 +- .../_simulator/_network/_hardware/test_nic.py | 8 +- .../_simulator/_network/test_container.py | 4 +- .../_red_applications/test_dos_bot.py | 2 +- .../_applications/test_database_client.py | 4 +- .../_system/_applications/test_web_browser.py | 4 +- .../_system/_services/test_dns_client.py | 2 +- .../_system/_services/test_dns_server.py | 2 +- .../_system/_services/test_ftp_client.py | 2 +- .../_system/_services/test_ftp_server.py | 2 +- .../_system/_services/test_web_server.py | 2 +- 74 files changed, 1806 insertions(+), 1192 deletions(-) create mode 100644 src/primaite/simulator/network/hardware/network_interface/__init__.py create mode 100644 src/primaite/simulator/network/hardware/network_interface/layer_3_interface.py create mode 100644 src/primaite/simulator/network/hardware/network_interface/wired/__init__.py create mode 100644 src/primaite/simulator/network/hardware/network_interface/wired/router_interface.py create mode 100644 src/primaite/simulator/network/hardware/network_interface/wireless/__init__.py create mode 100644 src/primaite/simulator/network/hardware/network_interface/wireless/wireless_access_point.py create mode 100644 src/primaite/simulator/network/hardware/network_interface/wireless/wireless_nic.py delete mode 100644 src/primaite/simulator/network/hardware/nodes/host.py create mode 100644 src/primaite/simulator/network/hardware/nodes/host/__init__.py rename src/primaite/simulator/network/hardware/nodes/{ => host}/computer.py (61%) create mode 100644 src/primaite/simulator/network/hardware/nodes/host/host_node.py rename src/primaite/simulator/network/hardware/nodes/{ => host}/server.py (85%) create mode 100644 src/primaite/simulator/network/hardware/nodes/network/__init__.py create mode 100644 src/primaite/simulator/network/hardware/nodes/network/network_node.py rename src/primaite/simulator/network/hardware/nodes/{ => network}/router.py (69%) rename src/primaite/simulator/network/hardware/nodes/{ => network}/switch.py (56%) delete mode 100644 src/primaite/simulator/system/services/arp/host_arp.py create mode 100644 src/primaite/utils/validators.py diff --git a/docs/source/config.rst b/docs/source/config.rst index 23bf6097..575a3139 100644 --- a/docs/source/config.rst +++ b/docs/source/config.rst @@ -92,7 +92,7 @@ At the top level of the network are ``nodes`` and ``links``. * ``acl`` (Router only): Define the ACL rules at each index of the ACL on the router. the possible options are: ``action`` (PERMIT or DENY), ``src_port``, ``dst_port``, ``protocol``, ``src_ip``, ``dst_ip``. Any options left blank default to none which usually means that it will apply across all options. For example leaving ``src_ip`` blank will apply the rule to all IP addresses. * ``services`` (computers and servers only): a list of services to install on the node. They must define a ``ref``, ``type``, and ``options`` that depend on which ``type`` was selected. * ``applications`` (computer and servers only): Similar to services. A list of application to install on the node. - * ``nics`` (computers and servers only): If the node has multiple networking devices, the second, third, fourth, etc... must be defined here with an ``ip_address`` and ``subnet_mask``. + * ``network_interfaces`` (computers and servers only): If the node has multiple networking devices, the second, third, fourth, etc... must be defined here with an ``ip_address`` and ``subnet_mask``. **links:** * ``ref``: unique identifier for this link diff --git a/docs/source/simulation_components/network/base_hardware.rst b/docs/source/simulation_components/network/base_hardware.rst index ae922105..01c68036 100644 --- a/docs/source/simulation_components/network/base_hardware.rst +++ b/docs/source/simulation_components/network/base_hardware.rst @@ -176,7 +176,7 @@ Network Interfaces A Node will typically have one or more NICs attached to it for network connectivity: -- **nics** - A dictionary containing the NIC instances attached to the Node. NICs can be added/removed. +- **network_interfaces** - A dictionary containing the NIC instances attached to the Node. NICs can be added/removed. ------------- Configuration diff --git a/src/primaite/config/_package_data/example_config.yaml b/src/primaite/config/_package_data/example_config.yaml index b777060f..db00bad5 100644 --- a/src/primaite/config/_package_data/example_config.yaml +++ b/src/primaite/config/_package_data/example_config.yaml @@ -659,7 +659,7 @@ simulation: subnet_mask: 255.255.255.0 default_gateway: 192.168.1.1 dns_server: 192.168.1.10 - nics: + network_interfaces: 2: # unfortunately this number is currently meaningless, they're just added in order and take up the next available slot ip_address: 192.168.10.110 subnet_mask: 255.255.255.0 diff --git a/src/primaite/config/_package_data/example_config_2_rl_agents.yaml b/src/primaite/config/_package_data/example_config_2_rl_agents.yaml index 6aa54487..3a6feb68 100644 --- a/src/primaite/config/_package_data/example_config_2_rl_agents.yaml +++ b/src/primaite/config/_package_data/example_config_2_rl_agents.yaml @@ -1070,7 +1070,7 @@ simulation: subnet_mask: 255.255.255.0 default_gateway: 192.168.1.1 dns_server: 192.168.1.10 - nics: + network_interfaces: 2: # unfortunately this number is currently meaningless, they're just added in order and take up the next available slot ip_address: 192.168.10.110 subnet_mask: 255.255.255.0 diff --git a/src/primaite/game/agent/actions.py b/src/primaite/game/agent/actions.py index 0c78f4c9..fe945678 100644 --- a/src/primaite/game/agent/actions.py +++ b/src/primaite/game/agent/actions.py @@ -555,7 +555,7 @@ class NetworkNICAbstractAction(AbstractAction): "network", "node", node_uuid, - "nic", + "network_interface", nic_uuid, self.verb, ] @@ -672,8 +672,8 @@ class ActionManager: self.ip_address_list = [] for node_uuid in self.node_uuids: node_obj = self.game.simulation.network.nodes[node_uuid] - nics = node_obj.nics - for nic_uuid, nic_obj in nics.items(): + network_interfaces = node_obj.network_interfaces + for nic_uuid, nic_obj in network_interfaces.items(): self.ip_address_list.append(nic_obj.ip_address) # action_args are settings which are applied to the action space as a whole. @@ -898,10 +898,10 @@ class ActionManager: """ node_uuid = self.get_node_uuid_by_idx(node_idx) node_obj = self.game.simulation.network.nodes[node_uuid] - nics = list(node_obj.nics.keys()) - if len(nics) <= nic_idx: + network_interfaces = list(node_obj.network_interfaces.keys()) + if len(network_interfaces) <= nic_idx: return None - return nics[nic_idx] + return network_interfaces[nic_idx] @classmethod def from_config(cls, game: "PrimaiteGame", cfg: Dict) -> "ActionManager": @@ -936,7 +936,7 @@ class ActionManager: node_ref = entry["node_ref"] nic_num = entry["nic_num"] node_obj = game.simulation.network.get_node_by_hostname(node_ref) - ip_address = node_obj.ethernet_port[nic_num].ip_address + ip_address = node_obj.network_interface[nic_num].ip_address ip_address_list.append(ip_address) obj = cls( diff --git a/src/primaite/game/agent/observations.py b/src/primaite/game/agent/observations.py index 1f99987b..8f1c739c 100644 --- a/src/primaite/game/agent/observations.py +++ b/src/primaite/game/agent/observations.py @@ -406,7 +406,7 @@ class NodeObservation(AbstractObservation): where: Optional[Tuple[str]] = None, services: List[ServiceObservation] = [], folders: List[FolderObservation] = [], - nics: List[NicObservation] = [], + network_interfaces: List[NicObservation] = [], logon_status: bool = False, num_services_per_node: int = 2, num_folders_per_node: int = 2, @@ -429,9 +429,9 @@ class NodeObservation(AbstractObservation): :type folders: Dict[int,str], optional :param max_folders: Max number of folders in this node's obs space, defaults to 2 :type max_folders: int, optional - :param nics: Mapping between position in observation space and NIC idx, defaults to {} - :type nics: Dict[int,str], optional - :param max_nics: Max number of NICS in this node's obs space, defaults to 5 + :param network_interfaces: Mapping between position in observation space and NIC idx, defaults to {} + :type network_interfaces: Dict[int,str], optional + :param max_nics: Max number of network interfaces in this node's obs space, defaults to 5 :type max_nics: int, optional """ super().__init__() @@ -456,11 +456,11 @@ class NodeObservation(AbstractObservation): msg = f"Too many folders in Node observation for node. Truncating service {truncated_folder.where[-1]}" _LOGGER.warning(msg) - self.nics: List[NicObservation] = nics - while len(self.nics) < num_nics_per_node: - self.nics.append(NicObservation()) - while len(self.nics) > num_nics_per_node: - truncated_nic = self.nics.pop() + self.network_interfaces: List[NicObservation] = network_interfaces + while len(self.network_interfaces) < num_nics_per_node: + self.network_interfaces.append(NicObservation()) + while len(self.network_interfaces) > num_nics_per_node: + truncated_nic = self.network_interfaces.pop() msg = f"Too many NICs in Node observation for node. Truncating service {truncated_nic.where[-1]}" _LOGGER.warning(msg) @@ -469,7 +469,7 @@ class NodeObservation(AbstractObservation): self.default_observation: Dict = { "SERVICES": {i + 1: s.default_observation for i, s in enumerate(self.services)}, "FOLDERS": {i + 1: f.default_observation for i, f in enumerate(self.folders)}, - "NICS": {i + 1: n.default_observation for i, n in enumerate(self.nics)}, + "NETWORK_INTERFACES": {i + 1: n.default_observation for i, n in enumerate(self.network_interfaces)}, "operating_status": 0, } if self.logon_status: @@ -494,7 +494,7 @@ class NodeObservation(AbstractObservation): obs["SERVICES"] = {i + 1: service.observe(state) for i, service in enumerate(self.services)} obs["FOLDERS"] = {i + 1: folder.observe(state) for i, folder in enumerate(self.folders)} obs["operating_status"] = node_state["operating_state"] - obs["NICS"] = {i + 1: nic.observe(state) for i, nic in enumerate(self.nics)} + obs["NETWORK_INTERFACES"] = {i + 1: network_interface.observe(state) for i, network_interface in enumerate(self.network_interfaces)} if self.logon_status: obs["logon_status"] = 0 @@ -508,7 +508,7 @@ class NodeObservation(AbstractObservation): "SERVICES": spaces.Dict({i + 1: service.space for i, service in enumerate(self.services)}), "FOLDERS": spaces.Dict({i + 1: folder.space for i, folder in enumerate(self.folders)}), "operating_status": spaces.Discrete(5), - "NICS": spaces.Dict({i + 1: nic.space for i, nic in enumerate(self.nics)}), + "NETWORK_INTERFACES": spaces.Dict({i + 1: network_interface.space for i, network_interface in enumerate(self.network_interfaces)}), } if self.logon_status: space_shape["logon_status"] = spaces.Discrete(3) @@ -564,13 +564,13 @@ class NodeObservation(AbstractObservation): ] # create some configs for the NIC observation in the format {"nic_num":1}, {"nic_num":2}, {"nic_num":3}, etc. nic_configs = [{"nic_num": i for i in range(num_nics_per_node)}] - nics = [NicObservation.from_config(config=c, game=game, parent_where=where) for c in nic_configs] + network_interfaces = [NicObservation.from_config(config=c, game=game, parent_where=where) for c in nic_configs] logon_status = config.get("logon_status", False) return cls( where=where, services=services, folders=folders, - nics=nics, + network_interfaces=network_interfaces, logon_status=logon_status, num_services_per_node=num_services_per_node, num_folders_per_node=num_folders_per_node, @@ -728,7 +728,7 @@ class AclObservation(AbstractObservation): node_ref = ip_map_config["node_ref"] nic_num = ip_map_config["nic_num"] node_obj = game.simulation.network.nodes[game.ref_map_nodes[node_ref]] - nic_obj = node_obj.ethernet_port[nic_num] + nic_obj = node_obj.network_interface[nic_num] node_ip_to_idx[nic_obj.ip_address] = ip_idx + 2 router_hostname = config["router_hostname"] diff --git a/src/primaite/game/game.py b/src/primaite/game/game.py index 89d71f38..60d201f6 100644 --- a/src/primaite/game/game.py +++ b/src/primaite/game/game.py @@ -11,11 +11,12 @@ from primaite.game.agent.interface import AbstractAgent, AgentSettings, ProxyAge from primaite.game.agent.observations import ObservationManager from primaite.game.agent.rewards import RewardFunction from primaite.session.io import SessionIO, SessionIOSettings -from primaite.simulator.network.hardware.base import NIC, NodeOperatingState -from primaite.simulator.network.hardware.nodes.computer import Computer -from primaite.simulator.network.hardware.nodes.router import Router -from primaite.simulator.network.hardware.nodes.server import Server -from primaite.simulator.network.hardware.nodes.switch import Switch +from primaite.simulator.network.hardware.base import NodeOperatingState +from primaite.simulator.network.hardware.nodes.host.computer import Computer +from primaite.simulator.network.hardware.nodes.host.host_node import NIC +from primaite.simulator.network.hardware.nodes.network.router import Router +from primaite.simulator.network.hardware.nodes.host.server import Server +from primaite.simulator.network.hardware.nodes.network.switch import Switch from primaite.simulator.sim_container import Simulation from primaite.simulator.system.applications.database_client import DatabaseClient from primaite.simulator.system.applications.red_applications.data_manipulation_bot import DataManipulationBot @@ -305,8 +306,8 @@ class PrimaiteGame: if "options" in application_cfg: opt = application_cfg["options"] new_application.target_url = opt.get("target_url") - if "nics" in node_cfg: - for nic_num, nic_cfg in node_cfg["nics"].items(): + if "network_interfaces" in node_cfg: + for nic_num, nic_cfg in node_cfg["network_interfaces"].items(): new_node.connect_nic(NIC(ip_address=nic_cfg["ip_address"], subnet_mask=nic_cfg["subnet_mask"])) net.add_node(new_node) @@ -320,11 +321,11 @@ class PrimaiteGame: if isinstance(node_a, Switch): endpoint_a = node_a.switch_ports[link_cfg["endpoint_a_port"]] else: - endpoint_a = node_a.ethernet_port[link_cfg["endpoint_a_port"]] + endpoint_a = node_a.network_interface[link_cfg["endpoint_a_port"]] if isinstance(node_b, Switch): endpoint_b = node_b.switch_ports[link_cfg["endpoint_b_port"]] else: - endpoint_b = node_b.ethernet_port[link_cfg["endpoint_b_port"]] + endpoint_b = node_b.network_interface[link_cfg["endpoint_b_port"]] new_link = net.connect(endpoint_a=endpoint_a, endpoint_b=endpoint_b) game.ref_map_links[link_cfg["ref"]] = new_link.uuid diff --git a/src/primaite/notebooks/uc2_demo.ipynb b/src/primaite/notebooks/uc2_demo.ipynb index 679e8226..9d90963f 100644 --- a/src/primaite/notebooks/uc2_demo.ipynb +++ b/src/primaite/notebooks/uc2_demo.ipynb @@ -126,7 +126,7 @@ " - FILES\n", " - \n", " - health_status\n", - " - NICS\n", + " - NETWORK_INTERFACES\n", " - \n", " - nic_status\n", " - operating_status\n", @@ -180,7 +180,7 @@ "\n", "The ACL rules in the observation space appear in the same order that they do in the actual ACL. Though, only the first 10 rules are shown, there are default rules lower down that cannot be changed by the agent. The extra rules just allow the network to function normally, by allowing pings, ARP traffic, etc.\n", "\n", - "Most nodes have only 1 nic, so the observation for those is placed at NIC index 1 in the observation space. Only the security suite has 2 NICs, the second NIC in the observation space is the one that connects the security suite with swtich_2.\n", + "Most nodes have only 1 network_interface, so the observation for those is placed at NIC index 1 in the observation space. Only the security suite has 2 NICs, the second NIC in the observation space is the one that connects the security suite with swtich_2.\n", "\n", "The meaning of the services' operating_state is:\n", "|operating_state|label|\n", @@ -462,37 +462,37 @@ " 10: {'PROTOCOLS': {'ALL': 1}}},\n", " 'NODES': {1: {'FOLDERS': {1: {'FILES': {1: {'health_status': 0}},\n", " 'health_status': 0}},\n", - " 'NICS': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", + " 'NETWORK_INTERFACES': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", " 'SERVICES': {1: {'health_status': 0, 'operating_status': 1}},\n", " 'operating_status': 1},\n", " 2: {'FOLDERS': {1: {'FILES': {1: {'health_status': 0}},\n", " 'health_status': 0}},\n", - " 'NICS': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", + " 'NETWORK_INTERFACES': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", " 'SERVICES': {1: {'health_status': 0, 'operating_status': 1}},\n", " 'operating_status': 1},\n", " 3: {'FOLDERS': {1: {'FILES': {1: {'health_status': 1}},\n", " 'health_status': 1}},\n", - " 'NICS': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", + " 'NETWORK_INTERFACES': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", " 'SERVICES': {1: {'health_status': 0, 'operating_status': 0}},\n", " 'operating_status': 1},\n", " 4: {'FOLDERS': {1: {'FILES': {1: {'health_status': 0}},\n", " 'health_status': 0}},\n", - " 'NICS': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", + " 'NETWORK_INTERFACES': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", " 'SERVICES': {1: {'health_status': 0, 'operating_status': 0}},\n", " 'operating_status': 1},\n", " 5: {'FOLDERS': {1: {'FILES': {1: {'health_status': 0}},\n", " 'health_status': 0}},\n", - " 'NICS': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", + " 'NETWORK_INTERFACES': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", " 'SERVICES': {1: {'health_status': 0, 'operating_status': 0}},\n", " 'operating_status': 1},\n", " 6: {'FOLDERS': {1: {'FILES': {1: {'health_status': 0}},\n", " 'health_status': 0}},\n", - " 'NICS': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", + " 'NETWORK_INTERFACES': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", " 'SERVICES': {1: {'health_status': 0, 'operating_status': 0}},\n", " 'operating_status': 1},\n", " 7: {'FOLDERS': {1: {'FILES': {1: {'health_status': 0}},\n", " 'health_status': 0}},\n", - " 'NICS': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", + " 'NETWORK_INTERFACES': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", " 'SERVICES': {1: {'health_status': 0, 'operating_status': 0}},\n", " 'operating_status': 1}}}\n" ] @@ -588,31 +588,31 @@ "output_type": "stream", "text": [ "{1: {'FOLDERS': {1: {'FILES': {1: {'health_status': 0}}, 'health_status': 0}},\n", - " 'NICS': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", + " 'NETWORK_INTERFACES': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", " 'SERVICES': {1: {'health_status': 0, 'operating_status': 1}},\n", " 'operating_status': 1},\n", " 2: {'FOLDERS': {1: {'FILES': {1: {'health_status': 0}}, 'health_status': 0}},\n", - " 'NICS': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", + " 'NETWORK_INTERFACES': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", " 'SERVICES': {1: {'health_status': 0, 'operating_status': 1}},\n", " 'operating_status': 1},\n", " 3: {'FOLDERS': {1: {'FILES': {1: {'health_status': 1}}, 'health_status': 1}},\n", - " 'NICS': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", + " 'NETWORK_INTERFACES': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", " 'SERVICES': {1: {'health_status': 0, 'operating_status': 0}},\n", " 'operating_status': 1},\n", " 4: {'FOLDERS': {1: {'FILES': {1: {'health_status': 0}}, 'health_status': 0}},\n", - " 'NICS': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", + " 'NETWORK_INTERFACES': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", " 'SERVICES': {1: {'health_status': 0, 'operating_status': 0}},\n", " 'operating_status': 1},\n", " 5: {'FOLDERS': {1: {'FILES': {1: {'health_status': 0}}, 'health_status': 0}},\n", - " 'NICS': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", + " 'NETWORK_INTERFACES': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", " 'SERVICES': {1: {'health_status': 0, 'operating_status': 0}},\n", " 'operating_status': 1},\n", " 6: {'FOLDERS': {1: {'FILES': {1: {'health_status': 0}}, 'health_status': 0}},\n", - " 'NICS': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", + " 'NETWORK_INTERFACES': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", " 'SERVICES': {1: {'health_status': 0, 'operating_status': 0}},\n", " 'operating_status': 1},\n", " 7: {'FOLDERS': {1: {'FILES': {1: {'health_status': 0}}, 'health_status': 0}},\n", - " 'NICS': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", + " 'NETWORK_INTERFACES': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", " 'SERVICES': {1: {'health_status': 0, 'operating_status': 0}},\n", " 'operating_status': 1}}\n" ] @@ -639,31 +639,31 @@ "output_type": "stream", "text": [ "{1: {'FOLDERS': {1: {'FILES': {1: {'health_status': 0}}, 'health_status': 0}},\n", - " 'NICS': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", + " 'NETWORK_INTERFACES': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", " 'SERVICES': {1: {'health_status': 0, 'operating_status': 1}},\n", " 'operating_status': 1},\n", " 2: {'FOLDERS': {1: {'FILES': {1: {'health_status': 0}}, 'health_status': 0}},\n", - " 'NICS': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", + " 'NETWORK_INTERFACES': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", " 'SERVICES': {1: {'health_status': 3, 'operating_status': 1}},\n", " 'operating_status': 1},\n", " 3: {'FOLDERS': {1: {'FILES': {1: {'health_status': 2}}, 'health_status': 1}},\n", - " 'NICS': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", + " 'NETWORK_INTERFACES': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", " 'SERVICES': {1: {'health_status': 0, 'operating_status': 0}},\n", " 'operating_status': 1},\n", " 4: {'FOLDERS': {1: {'FILES': {1: {'health_status': 0}}, 'health_status': 0}},\n", - " 'NICS': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", + " 'NETWORK_INTERFACES': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", " 'SERVICES': {1: {'health_status': 0, 'operating_status': 0}},\n", " 'operating_status': 1},\n", " 5: {'FOLDERS': {1: {'FILES': {1: {'health_status': 0}}, 'health_status': 0}},\n", - " 'NICS': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", + " 'NETWORK_INTERFACES': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", " 'SERVICES': {1: {'health_status': 0, 'operating_status': 0}},\n", " 'operating_status': 1},\n", " 6: {'FOLDERS': {1: {'FILES': {1: {'health_status': 0}}, 'health_status': 0}},\n", - " 'NICS': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", + " 'NETWORK_INTERFACES': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", " 'SERVICES': {1: {'health_status': 0, 'operating_status': 0}},\n", " 'operating_status': 1},\n", " 7: {'FOLDERS': {1: {'FILES': {1: {'health_status': 0}}, 'health_status': 0}},\n", - " 'NICS': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", + " 'NETWORK_INTERFACES': {1: {'nic_status': 1}, 2: {'nic_status': 0}},\n", " 'SERVICES': {1: {'health_status': 0, 'operating_status': 0}},\n", " 'operating_status': 1}}\n" ] diff --git a/src/primaite/simulator/core.py b/src/primaite/simulator/core.py index 98a7e8db..964dac01 100644 --- a/src/primaite/simulator/core.py +++ b/src/primaite/simulator/core.py @@ -4,7 +4,7 @@ from abc import ABC, abstractmethod from typing import Callable, ClassVar, Dict, List, Optional, Union from uuid import uuid4 -from pydantic import BaseModel, ConfigDict +from pydantic import BaseModel, ConfigDict, Field from primaite import getLogger @@ -150,14 +150,12 @@ class SimComponent(BaseModel): model_config = ConfigDict(arbitrary_types_allowed=True, extra="allow") """Configure pydantic to allow arbitrary types and to let the instance have attributes not present in model.""" - uuid: str + uuid: str = Field(default_factory=lambda: str(uuid4())) """The component UUID.""" _original_state: Dict = {} def __init__(self, **kwargs): - if not kwargs.get("uuid"): - kwargs["uuid"] = str(uuid4()) super().__init__(**kwargs) self._request_manager: RequestManager = self._init_request_manager() self._parent: Optional["SimComponent"] = None diff --git a/src/primaite/simulator/network/container.py b/src/primaite/simulator/network/container.py index 8d8709d3..df793319 100644 --- a/src/primaite/simulator/network/container.py +++ b/src/primaite/simulator/network/container.py @@ -7,11 +7,11 @@ from prettytable import MARKDOWN, PrettyTable from primaite import getLogger from primaite.simulator.core import RequestManager, RequestType, SimComponent -from primaite.simulator.network.hardware.base import Link, NIC, Node, SwitchPort -from primaite.simulator.network.hardware.nodes.computer import Computer -from primaite.simulator.network.hardware.nodes.router import Router -from primaite.simulator.network.hardware.nodes.server import Server -from primaite.simulator.network.hardware.nodes.switch import Switch +from primaite.simulator.network.hardware.base import Link, Node, WiredNetworkInterface +from primaite.simulator.network.hardware.nodes.host.computer import Computer +from primaite.simulator.network.hardware.nodes.network.router import Router +from primaite.simulator.network.hardware.nodes.host.server import Server +from primaite.simulator.network.hardware.nodes.network.switch import Switch from primaite.simulator.system.applications.application import Application from primaite.simulator.system.services.service import Service @@ -62,8 +62,8 @@ class Network(SimComponent): for node in self.nodes.values(): node.power_on() - for nic in node.nics.values(): - nic.enable() + for network_interface in node.network_interfaces.values(): + network_interface.enable() # Reset software for software in node.software_manager.software.values(): if isinstance(software, Service): @@ -148,7 +148,7 @@ class Network(SimComponent): table.title = "IP Addresses" for nodes in nodes_type_map.values(): for node in nodes: - for i, port in node.ethernet_port.items(): + for i, port in node.network_interface.items(): table.add_row([node.hostname, i, port.ip_address, port.subnet_mask, node.default_gateway]) print(table) @@ -209,8 +209,8 @@ class Network(SimComponent): node_b = link.endpoint_b._connected_node hostname_a = node_a.hostname if node_a else None hostname_b = node_b.hostname if node_b else None - port_a = link.endpoint_a._port_num_on_node - port_b = link.endpoint_b._port_num_on_node + port_a = link.endpoint_a.port_num + port_b = link.endpoint_b.port_num state["links"][uuid] = link.describe_state() state["links"][uuid]["hostname_a"] = hostname_a state["links"][uuid]["hostname_b"] = hostname_b @@ -272,7 +272,7 @@ class Network(SimComponent): self._node_request_manager.remove_request(name=node.uuid) def connect( - self, endpoint_a: Union[NIC, SwitchPort], endpoint_b: Union[NIC, SwitchPort], **kwargs + self, endpoint_a: Union[WiredNetworkInterface], endpoint_b: Union[WiredNetworkInterface], **kwargs ) -> Optional[Link]: """ Connect two endpoints on the network by creating a link between their NICs/SwitchPorts. @@ -280,9 +280,9 @@ class Network(SimComponent): .. note:: If the nodes owning the endpoints are not already in the network, they are automatically added. :param endpoint_a: The first endpoint to connect. - :type endpoint_a: Union[NIC, SwitchPort] + :type endpoint_a: WiredNetworkInterface :param endpoint_b: The second endpoint to connect. - :type endpoint_b: Union[NIC, SwitchPort] + :type endpoint_b: WiredNetworkInterface :raises RuntimeError: If any validation or runtime checks fail. """ node_a: Node = endpoint_a.parent diff --git a/src/primaite/simulator/network/creation.py b/src/primaite/simulator/network/creation.py index 48313a1f..370d85da 100644 --- a/src/primaite/simulator/network/creation.py +++ b/src/primaite/simulator/network/creation.py @@ -2,9 +2,9 @@ from ipaddress import IPv4Address from typing import Optional from primaite.simulator.network.container import Network -from primaite.simulator.network.hardware.nodes.computer import Computer -from primaite.simulator.network.hardware.nodes.router import ACLAction, Router -from primaite.simulator.network.hardware.nodes.switch import Switch +from primaite.simulator.network.hardware.nodes.host.computer import Computer +from primaite.simulator.network.hardware.nodes.network.router import ACLAction, Router +from primaite.simulator.network.hardware.nodes.network.switch import Switch from primaite.simulator.network.transmission.network_layer import IPProtocol from primaite.simulator.network.transmission.transport_layer import Port @@ -111,7 +111,7 @@ def create_office_lan( if num_of_switches > 1: network.connect(core_switch.switch_ports[core_switch_port], switch.switch_ports[24]) else: - network.connect(router.ethernet_ports[1], switch.switch_ports[24]) + network.connect(router.network_interface[1], switch.switch_ports[24]) # Add PCs to the LAN and connect them to switches for i in range(1, num_pcs + 1): @@ -127,7 +127,7 @@ def create_office_lan( core_switch_port += 1 network.connect(core_switch.switch_ports[core_switch_port], switch.switch_ports[24]) else: - network.connect(router.ethernet_ports[1], switch.switch_ports[24]) + network.connect(router.network_interface[1], switch.switch_ports[24]) # Create and add a PC to the network pc = Computer( @@ -142,7 +142,7 @@ def create_office_lan( # Connect the PC to the switch switch_port += 1 - network.connect(switch.switch_ports[switch_port], pc.ethernet_port[1]) + network.connect(switch.switch_ports[switch_port], pc.network_interface[1]) switch.switch_ports[switch_port].enable() return network diff --git a/src/primaite/simulator/network/hardware/base.py b/src/primaite/simulator/network/hardware/base.py index 9edf7518..5299b3dd 100644 --- a/src/primaite/simulator/network/hardware/base.py +++ b/src/primaite/simulator/network/hardware/base.py @@ -2,11 +2,14 @@ from __future__ import annotations import re import secrets +from abc import abstractmethod, ABC from ipaddress import IPv4Address, IPv4Network from pathlib import Path -from typing import Any, Dict, List, Literal, Optional, Union +from typing import Any, Literal, Union +from typing import Dict, Optional from prettytable import MARKDOWN, PrettyTable +from pydantic import Field, BaseModel from primaite import getLogger from primaite.exceptions import NetworkError @@ -15,10 +18,7 @@ from primaite.simulator.core import RequestManager, RequestType, SimComponent from primaite.simulator.domain.account import Account from primaite.simulator.file_system.file_system import FileSystem from primaite.simulator.network.hardware.node_operating_state import NodeOperatingState -from primaite.simulator.network.protocols.arp import ARPEntry, ARPPacket -from primaite.simulator.network.transmission.data_link_layer import EthernetHeader, Frame -from primaite.simulator.network.transmission.network_layer import IPPacket -from primaite.simulator.network.transmission.transport_layer import Port, TCPHeader +from primaite.simulator.network.transmission.data_link_layer import Frame from primaite.simulator.system.applications.application import Application from primaite.simulator.system.core.packet_capture import PacketCapture from primaite.simulator.system.core.session_manager import SessionManager @@ -26,6 +26,7 @@ from primaite.simulator.system.core.software_manager import SoftwareManager from primaite.simulator.system.core.sys_log import SysLog from primaite.simulator.system.processes.process import Process from primaite.simulator.system.services.service import Service +from primaite.utils.validators import IPV4Address _LOGGER = getLogger(__name__) @@ -34,14 +35,6 @@ def generate_mac_address(oui: Optional[str] = None) -> str: """ Generate a random MAC Address. - :Example: - - >>> generate_mac_address() - 'ef:7e:97:c8:a8:ce' - - >>> generate_mac_address(oui='aa:bb:cc') - 'aa:bb:cc:42:ba:41' - :param oui: The Organizationally Unique Identifier (OUI) portion of the MAC address. It should be a string with the first 3 bytes (24 bits) in the format "XX:XX:XX". :raises ValueError: If the 'oui' is not in the correct format (hexadecimal and 6 characters). @@ -55,111 +48,46 @@ def generate_mac_address(oui: Optional[str] = None) -> str: _LOGGER.error(msg) raise ValueError(msg) oui_bytes = [int(chunk, 16) for chunk in oui.split(":")] - mac = oui_bytes + random_bytes[len(oui_bytes) :] + mac = oui_bytes + random_bytes[len(oui_bytes):] else: mac = random_bytes return ":".join(f"{b:02x}" for b in mac) -class NIC(SimComponent): +class NetworkInterface(SimComponent, ABC): """ - Models a Network Interface Card (NIC) in a computer or network device. + A generic Network Interface in a Node on a Network. - :param ip_address: The IPv4 address assigned to the NIC. - :param subnet_mask: The subnet mask assigned to the NIC. - :param gateway: The default gateway IP address for forwarding network traffic to other networks. - :param mac_address: The MAC address of the NIC. Defaults to a randomly set MAC address. - :param speed: The speed of the NIC in Mbps (default is 100 Mbps). - :param mtu: The Maximum Transmission Unit (MTU) of the NIC in Bytes, representing the largest data packet size it - can handle without fragmentation (default is 1500 B). - :param wake_on_lan: Indicates if the NIC supports Wake-on-LAN functionality. - :param dns_servers: List of IP addresses of DNS servers used for name resolution. + This is a base class for specific types of network interfaces, providing common attributes and methods required + for network communication. It defines the fundamental properties that all network interfaces share, such as + MAC address, speed, MTU (maximum transmission unit), and the ability to enable or disable the interface. + + :ivar str mac_address: The MAC address of the network interface. Default to a randomly generated MAC address. + :ivar int speed: The speed of the interface in Mbps. Default is 100 Mbps. + :ivar int mtu: The Maximum Transmission Unit (MTU) of the interface in Bytes. Default is 1500 B. """ - ip_address: IPv4Address - "The IP address assigned to the NIC for communication on an IP-based network." - subnet_mask: IPv4Address - "The subnet mask assigned to the NIC." - mac_address: str - "The MAC address of the NIC. Defaults to a randomly set MAC address. Randomly generated upon creation." + mac_address: str = Field(default_factory=generate_mac_address) + "The MAC address of the interface." + speed: int = 100 - "The speed of the NIC in Mbps. Default is 100 Mbps." + "The speed of the interface in Mbps. Default is 100 Mbps." + mtu: int = 1500 - "The Maximum Transmission Unit (MTU) of the NIC in Bytes. Default is 1500 B" - wake_on_lan: bool = False - "Indicates if the NIC supports Wake-on-LAN functionality." - _connected_node: Optional[Node] = None - "The Node to which the NIC is connected." - _port_num_on_node: Optional[int] = None - "Which port number is assigned on this NIC" - _connected_link: Optional[Link] = None - "The Link to which the NIC is connected." + "The Maximum Transmission Unit (MTU) of the interface in Bytes. Default is 1500 B" + enabled: bool = False - "Indicates whether the NIC is enabled." + "Indicates whether the interface is enabled." + + _connected_node: Optional[Node] = None + "The Node to which the interface is connected." + + port_num: Optional[int] = None + "The port number assigned to this interface on the connected node." + pcap: Optional[PacketCapture] = None - - def __init__(self, **kwargs): - """ - NIC constructor. - - Performs some type conversion the calls ``super().__init__()``. Then performs some checking on the ip_address - and gateway just to check that it's all been configured correctly. - - :raises ValueError: When the ip_address and gateway are the same. And when the ip_address/subnet mask are a - network address. - """ - if not isinstance(kwargs["ip_address"], IPv4Address): - kwargs["ip_address"] = IPv4Address(kwargs["ip_address"]) - if "mac_address" not in kwargs: - kwargs["mac_address"] = generate_mac_address() - super().__init__(**kwargs) - - if self.ip_network.network_address == self.ip_address: - msg = ( - f"Failed to set IP address {self.ip_address} and subnet mask {self.subnet_mask} as it is a " - f"network address {self.ip_network.network_address}" - ) - _LOGGER.error(msg) - raise ValueError(msg) - - self.set_original_state() - - def set_original_state(self): - """Sets the original state.""" - vals_to_include = {"ip_address", "subnet_mask", "mac_address", "speed", "mtu", "wake_on_lan", "enabled"} - self._original_state = self.model_dump(include=vals_to_include) - - def reset_component_for_episode(self, episode: int): - """Reset the original state of the SimComponent.""" - super().reset_component_for_episode(episode) - if episode and self.pcap: - self.pcap.current_episode = episode - self.pcap.setup_logger() - self.enable() - - def describe_state(self) -> Dict: - """ - Produce a dictionary describing the current state of this object. - - Please see :py:meth:`primaite.simulator.core.SimComponent.describe_state` for a more detailed explanation. - - :return: Current state of this object and child objects. - :rtype: Dict - """ - state = super().describe_state() - state.update( - { - "ip_address": str(self.ip_address), - "subnet_mask": str(self.subnet_mask), - "mac_address": self.mac_address, - "speed": self.speed, - "mtu": self.mtu, - "wake_on_lan": self.wake_on_lan, - "enabled": self.enabled, - } - ) - return state + "A PacketCapture instance for capturing and analysing packets passing through this interface." def _init_request_manager(self) -> RequestManager: rm = super()._init_request_manager() @@ -169,202 +97,11 @@ class NIC(SimComponent): return rm - @property - def ip_network(self) -> IPv4Network: - """ - Return the IPv4Network of the NIC. - - :return: The IPv4Network from the ip_address/subnet mask. - """ - return IPv4Network(f"{self.ip_address}/{self.subnet_mask}", strict=False) - - def enable(self): - """Attempt to enable the NIC.""" - if self.enabled: - return - if not self._connected_node: - _LOGGER.debug(f"NIC {self} cannot be enabled as it is not connected to a Node") - return - if self._connected_node.operating_state != NodeOperatingState.ON: - self._connected_node.sys_log.error(f"NIC {self} cannot be enabled as the endpoint is not turned on") - return - if not self._connected_link: - _LOGGER.debug(f"NIC {self} cannot be enabled as it is not connected to a Link") - return - - self.enabled = True - self._connected_node.sys_log.info(f"NIC {self} enabled") - self.pcap = PacketCapture(hostname=self._connected_node.hostname, ip_address=self.ip_address) - if self._connected_link: - self._connected_link.endpoint_up() - - def disable(self): - """Disable the NIC.""" - if not self.enabled: - return - - self.enabled = False - if self._connected_node: - self._connected_node.sys_log.info(f"NIC {self} disabled") - else: - _LOGGER.debug(f"NIC {self} disabled") - if self._connected_link: - self._connected_link.endpoint_down() - - def connect_link(self, link: Link): - """ - Connect the NIC to a link. - - :param link: The link to which the NIC is connected. - :type link: :class:`~primaite.simulator.network.transmission.physical_layer.Link` - """ - if self._connected_link: - _LOGGER.error(f"Cannot connect Link to NIC ({self.mac_address}) as it already has a connection") - return - - if self._connected_link == link: - _LOGGER.error(f"Cannot connect Link to NIC ({self.mac_address}) as it is already connected") - return - - # TODO: Inform the Node that a link has been connected - self._connected_link = link - self.enable() - _LOGGER.debug(f"NIC {self} connected to Link {link}") - - def disconnect_link(self): - """Disconnect the NIC from the connected Link.""" - if self._connected_link.endpoint_a == self: - self._connected_link.endpoint_a = None - if self._connected_link.endpoint_b == self: - self._connected_link.endpoint_b = None - self._connected_link = None - - def add_dns_server(self, ip_address: IPv4Address): - """ - Add a DNS server IP address. - - :param ip_address: The IP address of the DNS server to be added. - :type ip_address: ipaddress.IPv4Address - """ - pass - - def remove_dns_server(self, ip_address: IPv4Address): - """ - Remove a DNS server IP Address. - - :param ip_address: The IP address of the DNS server to be removed. - :type ip_address: ipaddress.IPv4Address - """ - pass - - def send_frame(self, frame: Frame) -> bool: - """ - Send a network frame from the NIC to the connected link. - - :param frame: The network frame to be sent. - :type frame: :class:`~primaite.simulator.network.osi_layers.Frame` - """ - if self.enabled: - frame.set_sent_timestamp() - self.pcap.capture_outbound(frame) - self._connected_link.transmit_frame(sender_nic=self, frame=frame) - return True - # Cannot send Frame as the NIC is not enabled - return False - - def receive_frame(self, frame: Frame) -> bool: - """ - Receive a network frame from the connected link, processing it if the NIC is enabled. - - This method decrements the Time To Live (TTL) of the frame, captures it using PCAP (Packet Capture), and checks - if the frame is either a broadcast or destined for this NIC. If the frame is acceptable, it is passed to the - connected node. The method also handles the discarding of frames with TTL expired and logs this event. - - The frame's reception is based on various conditions: - - If the NIC is disabled, the frame is not processed. - - If the TTL of the frame reaches zero after decrement, it is discarded and logged. - - If the frame is a broadcast or its destination MAC/IP address matches this NIC's, it is accepted. - - All other frames are dropped and logged or printed to the console. - - :param frame: The network frame being received. This should be an instance of the Frame class. - :return: Returns True if the frame is processed and passed to the node, False otherwise. - """ - if self.enabled: - frame.decrement_ttl() - if frame.ip and frame.ip.ttl < 1: - self._connected_node.sys_log.info("Frame discarded as TTL limit reached") - return False - frame.set_received_timestamp() - self.pcap.capture_inbound(frame) - # If this destination or is broadcast - accept_frame = False - - # Check if it's a broadcast: - if frame.ethernet.dst_mac_addr == "ff:ff:ff:ff:ff:ff": - if frame.ip.dst_ip_address in {self.ip_address, self.ip_network.broadcast_address}: - accept_frame = True - else: - if frame.ethernet.dst_mac_addr == self.mac_address: - accept_frame = True - - if accept_frame: - self._connected_node.receive_frame(frame=frame, from_nic=self) - return True - return False - - def __str__(self) -> str: - return f"{self.mac_address}/{self.ip_address}" - - -class SwitchPort(SimComponent): - """ - Models a switch port in a network switch device. - - :param mac_address: The MAC address of the SwitchPort. Defaults to a randomly set MAC address. - :param speed: The speed of the SwitchPort in Mbps (default is 100 Mbps). - :param mtu: The Maximum Transmission Unit (MTU) of the SwitchPort in Bytes, representing the largest data packet - size it can handle without fragmentation (default is 1500 B). - """ - - port_num: int = 1 - mac_address: str - "The MAC address of the SwitchPort. Defaults to a randomly set MAC address." - speed: int = 100 - "The speed of the SwitchPort in Mbps. Default is 100 Mbps." - mtu: int = 1500 - "The Maximum Transmission Unit (MTU) of the SwitchPort in Bytes. Default is 1500 B" - _connected_node: Optional[Node] = None - "The Node to which the SwitchPort is connected." - _port_num_on_node: Optional[int] = None - "The port num on the connected node." - _connected_link: Optional[Link] = None - "The Link to which the SwitchPort is connected." - enabled: bool = False - "Indicates whether the SwitchPort is enabled." - pcap: Optional[PacketCapture] = None - - def __init__(self, **kwargs): - """The SwitchPort constructor.""" - if "mac_address" not in kwargs: - kwargs["mac_address"] = generate_mac_address() - super().__init__(**kwargs) - - self.set_original_state() - - def set_original_state(self): - """Sets the original state.""" - vals_to_include = {"port_num", "mac_address", "speed", "mtu", "enabled"} - self._original_state = self.model_dump(include=vals_to_include) - super().set_original_state() - def describe_state(self) -> Dict: """ Produce a dictionary describing the current state of this object. - Please see :py:meth:`primaite.simulator.core.SimComponent.describe_state` for a more detailed explanation. - :return: Current state of this object and child objects. - :rtype: Dict """ state = super().describe_state() state.update( @@ -377,58 +114,135 @@ class SwitchPort(SimComponent): ) return state + def reset_component_for_episode(self, episode: int): + """Reset the original state of the SimComponent.""" + super().reset_component_for_episode(episode) + if episode and self.pcap: + self.pcap.current_episode = episode + self.pcap.setup_logger() + self.enable() + + @abstractmethod def enable(self): - """Attempt to enable the SwitchPort.""" + """Enable the interface.""" + pass + + @abstractmethod + def disable(self): + """Disable the interface.""" + pass + + @abstractmethod + def send_frame(self, frame: Frame) -> bool: + """ + Attempts to send a network frame through the interface. + + :param frame: The network frame to be sent. + :return: A boolean indicating whether the frame was successfully sent. + """ + pass + + @abstractmethod + def receive_frame(self, frame: Frame) -> bool: + """ + Receives a network frame on the interface. + + :param frame: The network frame being received. + :return: A boolean indicating whether the frame was successfully received. + """ + pass + + def __str__(self) -> str: + """ + String representation of the NIC. + + :return: A string combining the port number and the mac address + """ + return f"Port {self.port_num}: {self.mac_address}" + + +class WiredNetworkInterface(NetworkInterface, ABC): + """ + Represents a wired network interface in a network device. + + This abstract base class serves as a foundational blueprint for wired network interfaces, offering core + functionalities and enforcing the implementation of key operational methods such as enabling and disabling the + interface. It encapsulates common attributes and behaviors intrinsic to wired interfaces, including the + management of physical or logical connections to network links and the provision of methods for connecting to and + disconnecting from these links. + + Inherits from: + - NetworkInterface: Provides basic network interface properties and methods. + + + Subclasses of this class are expected to provide concrete implementations for the abstract methods defined here, + tailoring the functionality to the specific requirements of the wired interface types they represent. + """ + + _connected_link: Optional[Link] = None + "The network link to which the network interface is connected." + + def enable(self): + """Attempt to enable the network interface.""" if self.enabled: return if not self._connected_node: - _LOGGER.error(f"SwitchPort {self} cannot be enabled as it is not connected to a Node") + _LOGGER.error(f"Interface {self} cannot be enabled as it is not connected to a Node") return if self._connected_node.operating_state != NodeOperatingState.ON: - self._connected_node.sys_log.info(f"SwitchPort {self} cannot be enabled as the endpoint is not turned on") + self._connected_node.sys_log.info( + f"Interface {self} cannot be enabled as the connected Node is not powered on" + ) return self.enabled = True - self._connected_node.sys_log.info(f"SwitchPort {self} enabled") - self.pcap = PacketCapture(hostname=self._connected_node.hostname, switch_port_number=self.port_num) + self._connected_node.sys_log.info(f"Network Interface {self} enabled") + self.pcap = PacketCapture(hostname=self._connected_node.hostname, interface_num=self.port_num) if self._connected_link: self._connected_link.endpoint_up() def disable(self): - """Disable the SwitchPort.""" + """Disable the network interface.""" if not self.enabled: return self.enabled = False if self._connected_node: - self._connected_node.sys_log.info(f"SwitchPort {self} disabled") + self._connected_node.sys_log.info(f"Network Interface {self} disabled") else: - _LOGGER.debug(f"SwitchPort {self} disabled") + _LOGGER.debug(f"Interface {self} disabled") if self._connected_link: self._connected_link.endpoint_down() def connect_link(self, link: Link): """ - Connect the SwitchPort to a link. + Connect this network interface to a specified link. - :param link: The link to which the SwitchPort is connected. + This method establishes a connection between the network interface and a network link if the network interface is not already + connected. If the network interface is already connected to a link, it logs an error and does not change the existing + connection. + + :param link: The Link instance to connect to this network interface. """ if self._connected_link: - _LOGGER.error(f"Cannot connect link to SwitchPort {self.mac_address} as it already has a connection") + _LOGGER.error(f"Cannot connect Link to network interface {self} as it already has a connection") return if self._connected_link == link: - _LOGGER.error(f"Cannot connect Link to SwitchPort {self.mac_address} as it is already connected") + _LOGGER.error(f"Cannot connect Link to network interface {self} as it is already connected") return - # TODO: Inform the Switch that a link has been connected self._connected_link = link - _LOGGER.debug(f"SwitchPort {self} connected to Link {link}") self.enable() def disconnect_link(self): - """Disconnect the SwitchPort from the connected Link.""" + """ + Disconnect the network interface from its connected Link, if any. + + This method removes the association between the network interface and its connected Link. It updates the connected Link's + endpoints to reflect the disconnection. + """ if self._connected_link.endpoint_a == self: self._connected_link.endpoint_a = None if self._connected_link.endpoint_b == self: @@ -437,38 +251,220 @@ class SwitchPort(SimComponent): def send_frame(self, frame: Frame) -> bool: """ - Send a network frame from the SwitchPort to the connected link. + Attempt to send a network frame through the connected Link. + + This method sends a frame if the NIC is enabled and connected to a link. It captures the frame using PCAP + (if available) and transmits it through the connected link. Returns True if the frame is successfully sent, + False otherwise (e.g., if the Network Interface is disabled). :param frame: The network frame to be sent. + :return: True if the frame is sent, False if the Network Interface is disabled or not connected to a link. """ if self.enabled: + frame.set_sent_timestamp() self.pcap.capture_outbound(frame) self._connected_link.transmit_frame(sender_nic=self, frame=frame) return True - # Cannot send Frame as the SwitchPort is not enabled + # Cannot send Frame as the NIC is not enabled return False + @abstractmethod def receive_frame(self, frame: Frame) -> bool: """ - Receive a network frame from the connected link if the SwitchPort is enabled. - - The Frame is passed to the Node. + Receives a network frame on the network interface. :param frame: The network frame being received. + :return: A boolean indicating whether the frame was successfully received. """ - if self.enabled: - frame.decrement_ttl() - if frame.ip and frame.ip.ttl < 1: - self._connected_node.sys_log.info("Frame discarded as TTL limit reached") - return False - self.pcap.capture_inbound(frame) - connected_node: Node = self._connected_node - connected_node.forward_frame(frame=frame, incoming_port=self) - return True - return False + pass - def __str__(self) -> str: - return f"{self.mac_address}" + +class Layer3Interface(BaseModel, ABC): + """ + Represents a Layer 3 (Network Layer) interface in a network device. + + This class serves as a base for network interfaces that operate at Layer 3 of the OSI model, providing IP + connectivity and subnetting capabilities. It's not meant to be instantiated directly but to be subclassed by + specific types of network interfaces that require IP addressing capabilities. + + :ivar IPV4Address ip_address: The IP address assigned to the interface. This address enables the interface to + participate in IP-based networking, allowing it to send and receive IP packets. + :ivar IPv4Address subnet_mask: The subnet mask assigned to the interface. This mask helps in determining the + network segment that the interface belongs to and is used in IP routing decisions. + """ + ip_address: IPV4Address + "The IP address assigned to the interface for communication on an IP-based network." + + subnet_mask: IPV4Address + "The subnet mask assigned to the interface, defining the network portion and the host portion of the IP address." + + def describe_state(self) -> Dict: + """ + Produce a dictionary describing the current state of this object. + + :return: Current state of this object and child objects. + """ + state = { + "ip_address": str(self.ip_address), + "subnet_mask": str(self.subnet_mask), + } + + return state + + @property + def ip_network(self) -> IPv4Network: + """ + Calculate and return the IPv4Network derived from the NIC's IP address and subnet mask. + + This property constructs an IPv4Network object which represents the whole network that the NIC's IP address + belongs to, based on its subnet mask. It's useful for determining the network range and broadcast address. + + :return: An IPv4Network instance representing the network of this NIC. + """ + return IPv4Network(f"{self.ip_address}/{self.subnet_mask}", strict=False) + + +class IPWiredNetworkInterface(WiredNetworkInterface, Layer3Interface, ABC): + """ + Represents an IP wired network interface. + + This interface operates at both the data link layer (Layer 2) and the network layer (Layer 3) of the OSI model, + specifically tailored for IP-based communication. This abstract class serves as a template for creating specific + wired network interfaces that support Internet Protocol (IP) functionalities. + + As this class is an amalgamation of its parent classes without additional attributes or methods, it is recommended + to refer to the documentation of `WiredNetworkInterface` and `Layer3Interface` for detailed information on the + supported operations and functionalities. + + The class inherits from: + - `WiredNetworkInterface`: Provides the functionalities and characteristics of a wired connection, such as + physical link establishment and data transmission over a cable. + - `Layer3Interface`: Enables network layer capabilities, including IP address assignment, routing, and + potentially, Layer 3 protocols like IPsec. + + As an abstract class, `IPWiredNetworkInterface` does not implement specific methods but mandates that any derived + class provides implementations for the functionalities of both `WiredNetworkInterface` and `Layer3Interface`. + This structure is ideal for representing network interfaces in devices that require wired connections and are + capable of IP routing and addressing, such as routers, switches, as well as end-host devices like computers and + servers. + + Derived classes should define specific behaviors and properties of an IP-capable wired network interface, + customizing it for their specific use cases. + """ + + def describe_state(self) -> Dict: + """ + Produce a dictionary describing the current state of this object. + + :return: Current state of this object and child objects. + :rtype: Dict + """ + # Get the state from the WiredNetworkInterface + state = WiredNetworkInterface.describe_state(self) + + # Update the state with information from Layer3Interface + state.update(Layer3Interface.describe_state(self)) + + return state + + def enable(self): + super().enable() + try: + self._connected_node.default_gateway_hello() + except AttributeError: + pass + + + @abstractmethod + def receive_frame(self, frame: Frame) -> bool: + """ + Receives a network frame on the network interface. + + :param frame: The network frame being received. + :return: A boolean indicating whether the frame was successfully received. + """ + pass + + + +class WirelessNetworkInterface(NetworkInterface, ABC): + """ + Represents a wireless network interface in a network device. + + This abstract base class models wireless network interfaces, encapsulating properties and behaviors specific to + wireless connectivity. It provides a framework for managing wireless connections, including signal strength, + security protocols, and other wireless-specific attributes and methods. + + Wireless network interfaces differ from wired ones in their medium of communication, relying on radio frequencies + for data transmission and reception. This class serves as a base for more specific types of wireless interfaces, + such as Wi-Fi adapters or radio network interfaces, ensuring that essential wireless functionality is defined + and standardised. + + Inherits from: + - NetworkInterface: Provides basic network interface properties and methods. + + As an abstract base class, it requires subclasses to implement specific methods related to wireless communication + and may define additional properties and methods specific to wireless technology. + """ + + +class IPWirelessNetworkInterface(WiredNetworkInterface, Layer3Interface, ABC): + """ + Represents an IP wireless network interface. + + This interface operates at both the data link layer (Layer 2) and the network layer (Layer 3) of the OSI model, + specifically tailored for IP-based communication over wireless connections. This abstract class provides a + template for creating specific wireless network interfaces that support Internet Protocol (IP) functionalities. + + As this class is a combination of its parent classes without additional attributes or methods, please refer to + the documentation of `WirelessNetworkInterface` and `Layer3Interface` for more details on the supported operations + and functionalities. + + The class inherits from: + - `WirelessNetworkInterface`: Providing the functionalities and characteristics of a wireless connection, such as + managing wireless signal transmission, reception, and associated wireless protocols. + - `Layer3Interface`: Enabling network layer capabilities, including IP address assignment, routing, and + potentially, Layer 3 protocols like IPsec. + + As an abstract class, `IPWirelessNetworkInterface` does not implement specific methods but ensures that any derived + class provides implementations for the functionalities of both `WirelessNetworkInterface` and `Layer3Interface`. + This setup is ideal for representing network interfaces in devices that require wireless connections and are capable + of IP routing and addressing, such as wireless routers, access points, and wireless end-host devices like smartphones + and laptops. + + This class should be extended by concrete classes that define specific behaviors and properties of an IP-capable + wireless network interface. + """ + + @abstractmethod + def enable(self): + """Enable the interface.""" + pass + + @abstractmethod + def disable(self): + """Disable the interface.""" + pass + + @abstractmethod + def send_frame(self, frame: Frame) -> bool: + """ + Attempts to send a network frame through the interface. + + :param frame: The network frame to be sent. + :return: A boolean indicating whether the frame was successfully sent. + """ + pass + + @abstractmethod + def receive_frame(self, frame: Frame) -> bool: + """ + Receives a network frame on the interface. + + :param frame: The network frame being received. + :return: A boolean indicating whether the frame was successfully received. + """ + pass class Link(SimComponent): @@ -480,10 +476,10 @@ class Link(SimComponent): :param bandwidth: The bandwidth of the Link in Mbps (default is 100 Mbps). """ - endpoint_a: Union[NIC, SwitchPort] - "The first NIC or SwitchPort connected to the Link." - endpoint_b: Union[NIC, SwitchPort] - "The second NIC or SwitchPort connected to the Link." + endpoint_a: Union[WiredNetworkInterface] + "The first WiredNetworkInterface connected to the Link." + endpoint_b: Union[WiredNetworkInterface] + "The second WiredNetworkInterface connected to the Link." bandwidth: float = 100.0 "The bandwidth of the Link in Mbps (default is 100 Mbps)." current_load: float = 0.0 @@ -567,7 +563,7 @@ class Link(SimComponent): return True return False - def transmit_frame(self, sender_nic: Union[NIC, SwitchPort], frame: Frame) -> bool: + def transmit_frame(self, sender_nic: Union[WiredNetworkInterface], frame: Frame) -> bool: """ Send a network frame from one NIC or SwitchPort to another connected NIC or SwitchPort. @@ -599,6 +595,7 @@ class Link(SimComponent): def __str__(self) -> str: return f"{self.endpoint_a}<-->{self.endpoint_b}" + class Node(SimComponent): """ A basic Node class that represents a node on the network. @@ -612,14 +609,14 @@ class Node(SimComponent): hostname: str "The node hostname on the network." - default_gateway: Optional[IPv4Address] = None + default_gateway: Optional[IPV4Address] = None "The default gateway IP address for forwarding network traffic to other networks." operating_state: NodeOperatingState = NodeOperatingState.OFF "The hardware state of the node." - nics: Dict[str, NIC] = {} - "The NICs on the node." - ethernet_port: Dict[int, NIC] = {} - "The NICs on the node by port id." + network_interfaces: Dict[str, NetworkInterface] = {} + "The Network Interfaces on the node." + network_interface: Dict[int, NetworkInterface] = {} + "The Network Interfaces on the node by port id." dns_server: Optional[IPv4Address] = None "List of IP addresses of DNS servers used for name resolution." @@ -673,9 +670,6 @@ class Node(SimComponent): This method initializes the ARP cache, ICMP handler, session manager, and software manager if they are not provided. """ - if kwargs.get("default_gateway"): - if not isinstance(kwargs["default_gateway"], IPv4Address): - kwargs["default_gateway"] = IPv4Address(kwargs["default_gateway"]) if not kwargs.get("sys_log"): kwargs["sys_log"] = SysLog(kwargs["hostname"]) if not kwargs.get("session_manager"): @@ -698,6 +692,9 @@ class Node(SimComponent): self._install_system_software() self.set_original_state() + # def model_post_init(self, __context: Any) -> None: + # self._install_system_software() + # self.set_original_state() def set_original_state(self): """Sets the original state.""" @@ -706,8 +703,8 @@ class Node(SimComponent): self.file_system.set_original_state() - for nic in self.nics.values(): - nic.set_original_state() + for network_interface in self.network_interfaces.values(): + network_interface.set_original_state() vals_to_include = { "hostname", @@ -736,8 +733,8 @@ class Node(SimComponent): self.file_system.reset_component_for_episode(episode) # Reset all Nics - for nic in self.nics.values(): - nic.reset_component_for_episode(episode) + for network_interface in self.network_interfaces.values(): + network_interface.reset_component_for_episode(episode) for software in self.software_manager.software.values(): software.reset_component_for_episode(episode) @@ -754,7 +751,7 @@ class Node(SimComponent): self._service_request_manager = RequestManager() rm.add_request("service", RequestType(func=self._service_request_manager)) self._nic_request_manager = RequestManager() - rm.add_request("nic", RequestType(func=self._nic_request_manager)) + rm.add_request("network_interface", RequestType(func=self._nic_request_manager)) rm.add_request("file_system", RequestType(func=self.file_system._request_manager)) @@ -796,8 +793,8 @@ class Node(SimComponent): { "hostname": self.hostname, "operating_state": self.operating_state.value, - "NICs": {eth_num: nic.describe_state() for eth_num, nic in self.ethernet_port.items()}, - # "switch_ports": {uuid, sp for uuid, sp in self.switch_ports.items()}, + "NICs": {eth_num: network_interface.describe_state() for eth_num, network_interface in + self.network_interface.items()}, "file_system": self.file_system.describe_state(), "applications": {app.name: app.describe_state() for app in self.applications.values()}, "services": {svc.name: svc.describe_state() for svc in self.services.values()}, @@ -807,14 +804,12 @@ class Node(SimComponent): ) return state - def show(self, markdown: bool = False, component: Literal["NIC", "OPEN_PORTS"] = "NIC"): - """A multi-use .show function that accepts either NIC or OPEN_PORTS.""" - if component == "NIC": - self._show_nic(markdown) - elif component == "OPEN_PORTS": - self._show_open_ports(markdown) + def show(self, markdown: bool = False): + "Show function that calls both show NIC and show open ports." + self.show_nic(markdown) + self.show_open_ports(markdown) - def _show_open_ports(self, markdown: bool = False): + def show_open_ports(self, markdown: bool = False): """Prints a table of the open ports on the Node.""" table = PrettyTable(["Port", "Name"]) if markdown: @@ -825,21 +820,22 @@ class Node(SimComponent): table.add_row([port.value, port.name]) print(table) - def _show_nic(self, markdown: bool = False): + def show_nic(self, markdown: bool = False): """Prints a table of the NICs on the Node.""" - table = PrettyTable(["Port", "MAC Address", "Address", "Speed", "Status"]) + table = PrettyTable(["Port", "Type", "MAC Address", "Address", "Speed", "Status"]) if markdown: table.set_style(MARKDOWN) table.align = "l" table.title = f"{self.hostname} Network Interface Cards" - for port, nic in self.ethernet_port.items(): + for port, network_interface in self.network_interface.items(): table.add_row( [ port, - nic.mac_address, - f"{nic.ip_address}/{nic.ip_network.prefixlen}", - nic.speed, - "Enabled" if nic.enabled else "Disabled", + network_interface.__name__, + network_interface.mac_address, + f"{network_interface.ip_address}/{network_interface.ip_network.prefixlen}", + network_interface.speed, + "Enabled" if network_interface.enabled else "Disabled", ] ) print(table) @@ -864,9 +860,8 @@ class Node(SimComponent): if self.operating_state == NodeOperatingState.BOOTING: self.operating_state = NodeOperatingState.ON self.sys_log.info(f"{self.hostname}: Turned on") - for nic in self.nics.values(): - if nic._connected_link: - nic.enable() + for network_interface in self.network_interfaces.values(): + network_interface.enable() self._start_up_actions() @@ -975,23 +970,22 @@ class Node(SimComponent): if self.start_up_duration <= 0: self.operating_state = NodeOperatingState.ON self._start_up_actions() - self.sys_log.info("Turned on") - for nic in self.nics.values(): - if nic._connected_link: - nic.enable() + self.sys_log.info("Power on") + for network_interface in self.network_interfaces.values(): + network_interface.enable() def power_off(self): """Power off the Node, disabling its NICs if it is in the ON state.""" if self.operating_state == NodeOperatingState.ON: - for nic in self.nics.values(): - nic.disable() + for network_interface in self.network_interfaces.values(): + network_interface.disable() self.operating_state = NodeOperatingState.SHUTTING_DOWN self.shut_down_countdown = self.shut_down_duration if self.shut_down_duration <= 0: self._shut_down_actions() self.operating_state = NodeOperatingState.OFF - self.sys_log.info("Turned off") + self.sys_log.info("Power off") def reset(self): """ @@ -1000,59 +994,57 @@ class Node(SimComponent): Powers off the node and sets is_resetting to True. Applying more timesteps will eventually turn the node back on. """ - if not self.operating_state.ON: - self.sys_log.error(f"Cannot reset {self.hostname} - node is not turned on.") - else: + if self.operating_state.ON: self.is_resetting = True - self.sys_log.info(f"Resetting {self.hostname}...") + self.sys_log.info(f"Resetting") self.power_off() - def connect_nic(self, nic: NIC): + def connect_nic(self, network_interface: NetworkInterface): """ - Connect a NIC (Network Interface Card) to the node. + Connect a Network Interface to the node. - :param nic: The NIC to connect. + :param network_interface: The NIC to connect. :raise NetworkError: If the NIC is already connected. """ - if nic.uuid not in self.nics: - self.nics[nic.uuid] = nic - self.ethernet_port[len(self.nics)] = nic - nic._connected_node = self - nic._port_num_on_node = len(self.nics) - nic.parent = self - self.sys_log.info(f"Connected NIC {nic}") + if network_interface.uuid not in self.network_interfaces: + self.network_interfaces[network_interface.uuid] = network_interface + self.network_interface[len(self.network_interfaces)] = network_interface + network_interface._connected_node = self + network_interface.port_num = len(self.network_interfaces) + network_interface.parent = self + self.sys_log.info(f"Connected Network Interface {network_interface}") if self.operating_state == NodeOperatingState.ON: - nic.enable() - self._nic_request_manager.add_request(nic.uuid, RequestType(func=nic._request_manager)) + network_interface.enable() + self._nic_request_manager.add_request( + network_interface.uuid, RequestType(func=network_interface._request_manager) + ) else: - msg = f"Cannot connect NIC {nic} as it is already connected" + msg = f"Cannot connect NIC {network_interface} as it is already connected" self.sys_log.logger.error(msg) - _LOGGER.error(msg) raise NetworkError(msg) - def disconnect_nic(self, nic: Union[NIC, str]): + def disconnect_nic(self, network_interface: Union[NetworkInterface, str]): """ Disconnect a NIC (Network Interface Card) from the node. - :param nic: The NIC to Disconnect, or its UUID. + :param network_interface: The NIC to Disconnect, or its UUID. :raise NetworkError: If the NIC is not connected. """ - if isinstance(nic, str): - nic = self.nics.get(nic) - if nic or nic.uuid in self.nics: - for port, _nic in self.ethernet_port.items(): - if nic == _nic: - self.ethernet_port.pop(port) + if isinstance(network_interface, str): + network_interface = self.network_interfaces.get(network_interface) + if network_interface or network_interface.uuid in self.network_interfaces: + for port, _nic in self.network_interface.items(): + if network_interface == _nic: + self.network_interface.pop(port) break - self.nics.pop(nic.uuid) - nic.parent = None - nic.disable() - self.sys_log.info(f"Disconnected NIC {nic}") - self._nic_request_manager.remove_request(nic.uuid) + self.network_interfaces.pop(network_interface.uuid) + network_interface.parent = None + network_interface.disable() + self.sys_log.info(f"Disconnected Network Interface {network_interface}") + self._nic_request_manager.remove_request(network_interface.uuid) else: - msg = f"Cannot disconnect NIC {nic} as it is not connected" + msg = f"Cannot disconnect NIC {network_interface} as it is not connected" self.sys_log.logger.error(msg) - _LOGGER.error(msg) raise NetworkError(msg) def ping(self, target_ip_address: Union[IPv4Address, str], pings: int = 4) -> bool: @@ -1065,56 +1057,32 @@ class Node(SimComponent): """ if not isinstance(target_ip_address, IPv4Address): target_ip_address = IPv4Address(target_ip_address) - return self.software_manager.icmp.ping(target_ip_address) + if self.software_manager.icmp: + return self.software_manager.icmp.ping(target_ip_address, pings) + return False - def send_frame(self, frame: Frame): - """ - Send a Frame from the Node to the connected NIC. - - :param frame: The Frame to be sent. - """ - if self.operating_state == NodeOperatingState.ON: - nic: NIC = self._get_arp_cache_nic(frame.ip.dst_ip_address) - nic.send_frame(frame) - - def receive_frame(self, frame: Frame, from_nic: NIC): + @abstractmethod + def receive_frame(self, frame: Frame, from_network_interface: NetworkInterface): """ Receive a Frame from the connected NIC and process it. - Depending on the protocol, the frame is passed to the appropriate handler such as ARP or ICMP, or up to the - SessionManager if no code manager exists. + This is an abstract implementation of receive_frame with some very basic functionality (ARP population). All + Node subclasses should have their own implementation of receive_frame that first calls super().receive_frame( + ) before implementing its own internal receive_frame logic. :param frame: The Frame being received. - :param from_nic: The NIC that received the frame. + :param from_network_interface: The Network Interface that received the frame. """ if self.operating_state == NodeOperatingState.ON: if frame.ip: - if frame.ip.src_ip_address in self.software_manager.arp: + if self.software_manager.arp: self.software_manager.arp.add_arp_cache_entry( - ip_address=frame.ip.src_ip_address, mac_address=frame.ethernet.src_mac_addr, nic=from_nic + ip_address=frame.ip.src_ip_address, + mac_address=frame.ethernet.src_mac_addr, + network_interface=from_network_interface ) - - # Check if the destination port is open on the Node - dst_port = None - if frame.tcp: - dst_port = frame.tcp.dst_port - elif frame.udp: - dst_port = frame.udp.dst_port - - accept_frame = False - if frame.icmp or dst_port in self.software_manager.get_open_ports(): - # accept the frame as the port is open or if it's an ICMP frame - accept_frame = True - - # TODO: add internal node firewall check here? - - if accept_frame: - self.session_manager.receive_frame(frame, from_nic) - else: - # denied as port closed - self.sys_log.info(f"Ignoring frame for port {frame.tcp.dst_port.value} from {frame.ip.src_ip_address}") - # TODO: do we need to do anything more here? - pass + else: + return def install_service(self, service: Service) -> None: """ diff --git a/src/primaite/simulator/network/hardware/network_interface/__init__.py b/src/primaite/simulator/network/hardware/network_interface/__init__.py new file mode 100644 index 00000000..e69de29b diff --git a/src/primaite/simulator/network/hardware/network_interface/layer_3_interface.py b/src/primaite/simulator/network/hardware/network_interface/layer_3_interface.py new file mode 100644 index 00000000..fdfd3b26 --- /dev/null +++ b/src/primaite/simulator/network/hardware/network_interface/layer_3_interface.py @@ -0,0 +1,9 @@ +from abc import ABC +from ipaddress import IPv4Network +from typing import Dict + +from pydantic import BaseModel + +from primaite.utils.validators import IPV4Address + + diff --git a/src/primaite/simulator/network/hardware/network_interface/wired/__init__.py b/src/primaite/simulator/network/hardware/network_interface/wired/__init__.py new file mode 100644 index 00000000..e69de29b diff --git a/src/primaite/simulator/network/hardware/network_interface/wired/router_interface.py b/src/primaite/simulator/network/hardware/network_interface/wired/router_interface.py new file mode 100644 index 00000000..e69de29b diff --git a/src/primaite/simulator/network/hardware/network_interface/wireless/__init__.py b/src/primaite/simulator/network/hardware/network_interface/wireless/__init__.py new file mode 100644 index 00000000..e69de29b diff --git a/src/primaite/simulator/network/hardware/network_interface/wireless/wireless_access_point.py b/src/primaite/simulator/network/hardware/network_interface/wireless/wireless_access_point.py new file mode 100644 index 00000000..f94b7faa --- /dev/null +++ b/src/primaite/simulator/network/hardware/network_interface/wireless/wireless_access_point.py @@ -0,0 +1,84 @@ +from typing import Dict + +from primaite.simulator.network.hardware.base import WirelessNetworkInterface +from primaite.simulator.network.hardware.network_interface.layer_3_interface import Layer3Interface + +from primaite.simulator.network.transmission.data_link_layer import Frame + + +class WirelessAccessPoint(WirelessNetworkInterface, Layer3Interface): + """ + Represents a Wireless Access Point (AP) in a network. + + This class models a Wireless Access Point, a device that allows wireless devices to connect to a wired network + using Wi-Fi or other wireless standards. The Wireless Access Point bridges the wireless and wired segments of + the network, allowing wireless devices to communicate with other devices on the network. + + As an integral component of wireless networking, a Wireless Access Point provides functionalities for network + management, signal broadcasting, security enforcement, and connection handling. It also possesses Layer 3 + capabilities such as IP addressing and subnetting, allowing for network segmentation and routing. + + Inherits from: + - WirelessNetworkInterface: Provides basic properties and methods specific to wireless interfaces. + - Layer3Interface: Provides Layer 3 properties like ip_address and subnet_mask, enabling the device to manage + network traffic and routing. + + This class can be further specialised or extended to support specific features or standards related to wireless + networking, such as different Wi-Fi versions, frequency bands, or advanced security protocols. + """ + + def describe_state(self) -> Dict: + """ + Produce a dictionary describing the current state of this object. + + :return: Current state of this object and child objects. + :rtype: Dict + """ + # Get the state from the WirelessNetworkInterface + state = WirelessNetworkInterface.describe_state(self) + + # Update the state with information from Layer3Interface + state.update(Layer3Interface.describe_state(self)) + + # Update the state with NIC-specific information + state.update( + { + "wake_on_lan": self.wake_on_lan, + } + ) + + return state + + def enable(self): + """Enable the interface.""" + pass + + def disable(self): + """Disable the interface.""" + pass + + def send_frame(self, frame: Frame) -> bool: + """ + Attempts to send a network frame through the interface. + + :param frame: The network frame to be sent. + :return: A boolean indicating whether the frame was successfully sent. + """ + pass + + def receive_frame(self, frame: Frame) -> bool: + """ + Receives a network frame on the interface. + + :param frame: The network frame being received. + :return: A boolean indicating whether the frame was successfully received. + """ + pass + + def __str__(self) -> str: + """ + String representation of the NIC. + + :return: A string combining the port number, MAC address and IP address of the NIC. + """ + return f"Port {self.port_num}: {self.mac_address}/{self.ip_address}" \ No newline at end of file diff --git a/src/primaite/simulator/network/hardware/network_interface/wireless/wireless_nic.py b/src/primaite/simulator/network/hardware/network_interface/wireless/wireless_nic.py new file mode 100644 index 00000000..12172608 --- /dev/null +++ b/src/primaite/simulator/network/hardware/network_interface/wireless/wireless_nic.py @@ -0,0 +1,81 @@ +from typing import Dict + +from primaite.simulator.network.hardware.base import WirelessNetworkInterface +from primaite.simulator.network.hardware.network_interface.layer_3_interface import Layer3Interface + +from primaite.simulator.network.transmission.data_link_layer import Frame + + +class WirelessNIC(WirelessNetworkInterface, Layer3Interface): + """ + Represents a Wireless Network Interface Card (Wireless NIC) in a network device. + + This class encapsulates the functionalities and attributes of a wireless NIC, combining the characteristics of a + wireless network interface with Layer 3 features. It is capable of connecting to wireless networks, managing + wireless-specific properties such as signal strength and security protocols, and also handling IP-related + functionalities like IP addressing and subnetting. + + Inherits from: + - WirelessNetworkInterface: Provides basic properties and methods specific to wireless interfaces. + - Layer3Interface: Provides Layer 3 properties like ip_address and subnet_mask, enabling the device to participate + in IP-based networking. + + This class can be extended to include more advanced features or to tailor its behavior for specific types of + wireless networks or protocols. + """ + + def describe_state(self) -> Dict: + """ + Produce a dictionary describing the current state of this object. + + :return: Current state of this object and child objects. + :rtype: Dict + """ + # Get the state from the WirelessNetworkInterface + state = WirelessNetworkInterface.describe_state(self) + + # Update the state with information from Layer3Interface + state.update(Layer3Interface.describe_state(self)) + + # Update the state with NIC-specific information + state.update( + { + "wake_on_lan": self.wake_on_lan, + } + ) + + return state + + def enable(self): + """Enable the interface.""" + pass + + def disable(self): + """Disable the interface.""" + pass + + def send_frame(self, frame: Frame) -> bool: + """ + Attempts to send a network frame through the interface. + + :param frame: The network frame to be sent. + :return: A boolean indicating whether the frame was successfully sent. + """ + pass + + def receive_frame(self, frame: Frame) -> bool: + """ + Receives a network frame on the interface. + + :param frame: The network frame being received. + :return: A boolean indicating whether the frame was successfully received. + """ + pass + + def __str__(self) -> str: + """ + String representation of the NIC. + + :return: A string combining the port number, MAC address and IP address of the NIC. + """ + return f"Port {self.port_num}: {self.mac_address}/{self.ip_address}" \ No newline at end of file diff --git a/src/primaite/simulator/network/hardware/nodes/host.py b/src/primaite/simulator/network/hardware/nodes/host.py deleted file mode 100644 index b0486538..00000000 --- a/src/primaite/simulator/network/hardware/nodes/host.py +++ /dev/null @@ -1,63 +0,0 @@ -from primaite.simulator.network.hardware.base import NIC, Node -from primaite.simulator.system.applications.web_browser import WebBrowser -from primaite.simulator.system.services.arp.host_arp import HostARP -from primaite.simulator.system.services.dns.dns_client import DNSClient -from primaite.simulator.system.services.ftp.ftp_client import FTPClient -from primaite.simulator.system.services.icmp.icmp import ICMP -from primaite.simulator.system.services.ntp.ntp_client import NTPClient - - -class Host(Node): - """ - A basic Host class. - - Example: - >>> pc_a = Host( - hostname="pc_a", - ip_address="192.168.1.10", - subnet_mask="255.255.255.0", - default_gateway="192.168.1.1" - ) - >>> pc_a.power_on() - - Instances of computer come 'pre-packaged' with the following: - - * Core Functionality: - * Packet Capture - * Sys Log - * Services: - * ARP Service - * ICMP Service - * DNS Client - * FTP Client - * NTP Client - * Applications: - * Web Browser - """ - - def __init__(self, **kwargs): - super().__init__(**kwargs) - self.connect_nic(NIC(ip_address=kwargs["ip_address"], subnet_mask=kwargs["subnet_mask"])) - self._install_system_software() - - def _install_system_software(self): - """Install System Software - software that is usually provided with the OS.""" - # ARP Service - self.software_manager.install(HostARP) - - # ICMP Service - self.software_manager.install(ICMP) - - # DNS Client - self.software_manager.install(DNSClient) - - # FTP Client - self.software_manager.install(FTPClient) - - # NTP Client - self.software_manager.install(NTPClient) - - # Web Browser - self.software_manager.install(WebBrowser) - - super()._install_system_software() diff --git a/src/primaite/simulator/network/hardware/nodes/host/__init__.py b/src/primaite/simulator/network/hardware/nodes/host/__init__.py new file mode 100644 index 00000000..e69de29b diff --git a/src/primaite/simulator/network/hardware/nodes/computer.py b/src/primaite/simulator/network/hardware/nodes/host/computer.py similarity index 61% rename from src/primaite/simulator/network/hardware/nodes/computer.py rename to src/primaite/simulator/network/hardware/nodes/host/computer.py index 61d3e3ff..dc75df69 100644 --- a/src/primaite/simulator/network/hardware/nodes/computer.py +++ b/src/primaite/simulator/network/hardware/nodes/host/computer.py @@ -1,11 +1,7 @@ -from primaite.simulator.network.hardware.base import NIC, Node -from primaite.simulator.network.hardware.nodes.host import Host -from primaite.simulator.system.applications.web_browser import WebBrowser -from primaite.simulator.system.services.dns.dns_client import DNSClient -from primaite.simulator.system.services.ftp.ftp_client import FTPClient +from primaite.simulator.network.hardware.nodes.host.host_node import HostNode -class Computer(Host): +class Computer(HostNode): """ A basic Computer class. diff --git a/src/primaite/simulator/network/hardware/nodes/host/host_node.py b/src/primaite/simulator/network/hardware/nodes/host/host_node.py new file mode 100644 index 00000000..eefee304 --- /dev/null +++ b/src/primaite/simulator/network/hardware/nodes/host/host_node.py @@ -0,0 +1,354 @@ +from __future__ import annotations + +from typing import Dict +from typing import Optional + +from primaite import getLogger +from primaite.simulator.network.hardware.base import IPWiredNetworkInterface +from primaite.simulator.network.hardware.base import Node +from primaite.simulator.network.hardware.node_operating_state import NodeOperatingState +from primaite.simulator.network.transmission.data_link_layer import Frame +from primaite.simulator.system.applications.web_browser import WebBrowser +from primaite.simulator.system.core.packet_capture import PacketCapture +from primaite.simulator.system.services.arp.arp import ARP, ARPPacket +from primaite.simulator.system.services.dns.dns_client import DNSClient +from primaite.simulator.system.services.ftp.ftp_client import FTPClient +from primaite.simulator.system.services.icmp.icmp import ICMP +from primaite.simulator.system.services.ntp.ntp_client import NTPClient +from primaite.utils.validators import IPV4Address + +_LOGGER = getLogger(__name__) + + +# Lives here due to pydantic circular dependency issue :( +class HostARP(ARP): + """ + The Host ARP Service. + + Extends the ARP service with functionalities specific to a host within the network. It provides mechanisms to + resolve and cache MAC addresses and NICs for given IP addresses, focusing on the host's perspective, including + handling the default gateway. + """ + + def get_default_gateway_mac_address(self) -> Optional[str]: + """ + Retrieves the MAC address of the default gateway from the ARP cache. + + :return: The MAC address of the default gateway if it exists in the ARP cache, otherwise None. + """ + if self.software_manager.node.default_gateway: + return self.get_arp_cache_mac_address(self.software_manager.node.default_gateway) + + def get_default_gateway_network_interface(self) -> Optional[NIC]: + """ + Retrieves the NIC associated with the default gateway from the ARP cache. + + :return: The NIC associated with the default gateway if it exists in the ARP cache, otherwise None. + """ + if self.software_manager.node.default_gateway: + return self.get_arp_cache_network_interface(self.software_manager.node.default_gateway) + + def _get_arp_cache_mac_address( + self, ip_address: IPV4Address, is_reattempt: bool = False, is_default_gateway_attempt: bool = False + ) -> Optional[str]: + """ + Internal method to retrieve the MAC address associated with an IP address from the ARP cache. + + :param ip_address: The IP address whose MAC address is to be retrieved. + :param is_reattempt: Indicates if this call is a reattempt after a failed initial attempt. + :param is_default_gateway_attempt: Indicates if this call is an attempt to get the default gateway's MAC address. + :return: The MAC address associated with the IP address if found, otherwise None. + """ + arp_entry = self.arp.get(ip_address) + + if arp_entry: + return arp_entry.mac_address + else: + if not is_reattempt: + self.send_arp_request(ip_address) + return self._get_arp_cache_mac_address( + ip_address=ip_address, is_reattempt=True, is_default_gateway_attempt=is_default_gateway_attempt + ) + else: + if self.software_manager.node.default_gateway: + if not is_default_gateway_attempt: + self.send_arp_request(self.software_manager.node.default_gateway) + return self._get_arp_cache_mac_address( + ip_address=self.software_manager.node.default_gateway, is_reattempt=True, + is_default_gateway_attempt=True + ) + return None + + def get_arp_cache_mac_address(self, ip_address: IPV4Address) -> Optional[str]: + """ + Retrieves the MAC address associated with an IP address from the ARP cache. + + :param ip_address: The IP address whose MAC address is to be retrieved. + :return: The MAC address associated with the IP address if found, otherwise None. + """ + return self._get_arp_cache_mac_address(ip_address) + + def _get_arp_cache_network_interface( + self, ip_address: IPV4Address, is_reattempt: bool = False, is_default_gateway_attempt: bool = False + ) -> Optional[NIC]: + """ + Internal method to retrieve the NIC associated with an IP address from the ARP cache. + + :param ip_address: The IP address whose NIC is to be retrieved. + :param is_reattempt: Indicates if this call is a reattempt after a failed initial attempt. + :param is_default_gateway_attempt: Indicates if this call is an attempt to get the NIC of the default gateway. + :return: The NIC associated with the IP address if found, otherwise None. + """ + arp_entry = self.arp.get(ip_address) + + if arp_entry: + return self.software_manager.node.network_interfaces[arp_entry.network_interface_uuid] + else: + if not is_reattempt: + self.send_arp_request(ip_address) + return self._get_arp_cache_network_interface( + ip_address=ip_address, is_reattempt=True, is_default_gateway_attempt=is_default_gateway_attempt + ) + else: + if self.software_manager.node.default_gateway: + if not is_default_gateway_attempt: + self.send_arp_request(self.software_manager.node.default_gateway) + return self._get_arp_cache_network_interface( + ip_address=self.software_manager.node.default_gateway, is_reattempt=True, + is_default_gateway_attempt=True + ) + return None + + def get_arp_cache_network_interface(self, ip_address: IPV4Address) -> Optional[NIC]: + """ + Retrieves the NIC associated with an IP address from the ARP cache. + + :param ip_address: The IP address whose NIC is to be retrieved. + :return: The NIC associated with the IP address if found, otherwise None. + """ + return self._get_arp_cache_network_interface(ip_address) + + def _process_arp_request(self, arp_packet: ARPPacket, from_network_interface: NIC): + """ + Processes an ARP request. + + Adds a new entry to the ARP cache if the target IP address matches the NIC's IP address and sends an ARP + reply back. + + :param arp_packet: The ARP packet containing the request. + :param from_network_interface: The NIC that received the ARP request. + """ + super()._process_arp_request(arp_packet, from_network_interface) + # Unmatched ARP Request + if arp_packet.target_ip_address != from_network_interface.ip_address: + self.sys_log.info( + f"Ignoring ARP request for {arp_packet.target_ip_address}. Current IP address is {from_network_interface.ip_address}" + ) + return + + # Matched ARP request + self.add_arp_cache_entry( + ip_address=arp_packet.sender_ip_address, mac_address=arp_packet.sender_mac_addr, + network_interface=from_network_interface + ) + arp_packet = arp_packet.generate_reply(from_network_interface.mac_address) + self.send_arp_reply(arp_packet) + + +class NIC(IPWiredNetworkInterface): + """ + Represents a Network Interface Card (NIC) in a Host Node. + + A NIC is a hardware component that provides a computer or other network device with the ability to connect to a + network. It operates at both Layer 2 (Data Link Layer) and Layer 3 (Network Layer) of the OSI model, meaning it + can interpret both MAC addresses and IP addresses. This class combines the functionalities of + WiredNetworkInterface and Layer3Interface, allowing the NIC to manage physical connections and network layer + addressing. + + Inherits from: + - WiredNetworkInterface: Provides properties and methods specific to wired connections, including methods to connect + and disconnect from network links and to manage the enabled/disabled state of the interface. + - Layer3Interface: Provides properties for Layer 3 network configuration, such as IP address and subnet mask. + """ + wake_on_lan: bool = False + "Indicates if the NIC supports Wake-on-LAN functionality." + + def __init__(self, **kwargs): + + super().__init__(**kwargs) + + def describe_state(self) -> Dict: + """ + Produce a dictionary describing the current state of this object. + + :return: Current state of this object and child objects. + :rtype: Dict + """ + # Get the state from the IPWiredNetworkInterface + state = super().describe_state() + + # Update the state with NIC-specific information + state.update( + { + "wake_on_lan": self.wake_on_lan, + } + ) + + return state + + def set_original_state(self): + """Sets the original state.""" + vals_to_include = {"ip_address", "subnet_mask", "mac_address", "speed", "mtu", "wake_on_lan", "enabled"} + self._original_state = self.model_dump(include=vals_to_include) + + def receive_frame(self, frame: Frame) -> bool: + """ + Attempt to receive and process a network frame from the connected Link. + + This method processes a frame if the NIC is enabled. It checks the frame's destination and TTL, captures the + frame using PCAP, and forwards it to the connected Node if valid. Returns True if the frame is processed, + False otherwise (e.g., if the NIC is disabled, or TTL expired). + + :param frame: The network frame being received. + :return: True if the frame is processed and passed to the node, False otherwise. + """ + if self.enabled: + frame.decrement_ttl() + if frame.ip and frame.ip.ttl < 1: + self._connected_node.sys_log.info(f"Frame discarded at {self} as TTL limit reached") + return False + frame.set_received_timestamp() + self.pcap.capture_inbound(frame) + # If this destination or is broadcast + accept_frame = False + + # Check if it's a broadcast: + if frame.ethernet.dst_mac_addr == "ff:ff:ff:ff:ff:ff": + if frame.ip.dst_ip_address in {self.ip_address, self.ip_network.broadcast_address}: + accept_frame = True + else: + if frame.ethernet.dst_mac_addr == self.mac_address: + accept_frame = True + + if accept_frame: + self._connected_node.receive_frame(frame=frame, from_network_interface=self) + return True + return False + + def __str__(self) -> str: + """ + String representation of the NIC. + + :return: A string combining the port number, MAC address and IP address of the NIC. + """ + return f"Port {self.port_num}: {self.mac_address}/{self.ip_address}" + + +class HostNode(Node): + """ + Represents a host node in the network. + + Extends the basic functionality of a Node with host-specific services and applications. A host node typically + represents an end-user device in the network, such as a Computer or a Server, and is capable of initiating and + responding to network communications. + + Example: + >>> pc_a = HostNode( + hostname="pc_a", + ip_address="192.168.1.10", + subnet_mask="255.255.255.0", + default_gateway="192.168.1.1" + ) + >>> pc_a.power_on() + + The host comes pre-installed with core functionalities and a suite of services and applications, making it ready + for various network operations and tasks. These include: + + Core Functionality: + ------------------- + + * Packet Capture: Monitors and logs network traffic. + * Sys Log: Logs system events and errors. + + Services: + --------- + + * ARP (Address Resolution Protocol) Service: Resolves IP addresses to MAC addresses. + * ICMP (Internet Control Message Protocol) Service: Handles ICMP operations, such as ping requests. + * DNS (Domain Name System) Client: Resolves domain names to IP addresses. + * FTP (File Transfer Protocol) Client: Enables file transfers between the host and FTP servers. + * NTP (Network Time Protocol) Client: Synchronizes the system clock with NTP servers. + + Applications: + ------------ + + * Web Browser: Provides web browsing capabilities. + """ + network_interfaces: Dict[str, NIC] = {} + "The Network Interfaces on the node." + network_interface: Dict[int, NIC] = {} + "The NICs on the node by port id." + + def __init__(self, ip_address: IPV4Address, subnet_mask: IPV4Address, **kwargs): + super().__init__(**kwargs) + self.connect_nic(NIC(ip_address=ip_address, subnet_mask=subnet_mask)) + + def _install_system_software(self): + """Install System Software - software that is usually provided with the OS.""" + # ARP Service + self.software_manager.install(HostARP) + + # ICMP Service + self.software_manager.install(ICMP) + + # DNS Client + self.software_manager.install(DNSClient) + + # FTP Client + self.software_manager.install(FTPClient) + + # NTP Client + self.software_manager.install(NTPClient) + + # Web Browser + self.software_manager.install(WebBrowser) + + super()._install_system_software() + + def default_gateway_hello(self): + if self.operating_state == NodeOperatingState.ON and self.default_gateway: + self.software_manager.arp.get_default_gateway_mac_address() + + def receive_frame(self, frame: Frame, from_network_interface: NIC): + """ + Receive a Frame from the connected NIC and process it. + + Depending on the protocol, the frame is passed to the appropriate handler such as ARP or ICMP, or up to the + SessionManager if no code manager exists. + + :param frame: The Frame being received. + :param from_network_interface: The NIC that received the frame. + """ + super().receive_frame(frame, from_network_interface) + + # Check if the destination port is open on the Node + dst_port = None + if frame.tcp: + dst_port = frame.tcp.dst_port + elif frame.udp: + dst_port = frame.udp.dst_port + + accept_frame = False + if frame.icmp or dst_port in self.software_manager.get_open_ports(): + # accept the frame as the port is open or if it's an ICMP frame + accept_frame = True + + # TODO: add internal node firewall check here? + + if accept_frame: + self.session_manager.receive_frame(frame, from_network_interface) + else: + # denied as port closed + self.sys_log.info(f"Ignoring frame for port {frame.tcp.dst_port.value} from {frame.ip.src_ip_address}") + # TODO: do we need to do anything more here? + pass diff --git a/src/primaite/simulator/network/hardware/nodes/server.py b/src/primaite/simulator/network/hardware/nodes/host/server.py similarity index 85% rename from src/primaite/simulator/network/hardware/nodes/server.py rename to src/primaite/simulator/network/hardware/nodes/host/server.py index 0a2c361f..148a277f 100644 --- a/src/primaite/simulator/network/hardware/nodes/server.py +++ b/src/primaite/simulator/network/hardware/nodes/host/server.py @@ -1,7 +1,7 @@ -from primaite.simulator.network.hardware.nodes.host import Host +from primaite.simulator.network.hardware.nodes.host.host_node import HostNode -class Server(Host): +class Server(HostNode): """ A basic Server class. @@ -28,4 +28,4 @@ class Server(Host): * Applications: * Web Browser """ - pass + diff --git a/src/primaite/simulator/network/hardware/nodes/network/__init__.py b/src/primaite/simulator/network/hardware/nodes/network/__init__.py new file mode 100644 index 00000000..e69de29b diff --git a/src/primaite/simulator/network/hardware/nodes/network/network_node.py b/src/primaite/simulator/network/hardware/nodes/network/network_node.py new file mode 100644 index 00000000..c7a2060b --- /dev/null +++ b/src/primaite/simulator/network/hardware/nodes/network/network_node.py @@ -0,0 +1,9 @@ +from primaite.simulator.network.hardware.base import Node, NetworkInterface +from primaite.simulator.network.transmission.data_link_layer import Frame + + +class NetworkNode(Node): + """""" + + def receive_frame(self, frame: Frame, from_network_interface: NetworkInterface): + pass diff --git a/src/primaite/simulator/network/hardware/nodes/router.py b/src/primaite/simulator/network/hardware/nodes/network/router.py similarity index 69% rename from src/primaite/simulator/network/hardware/nodes/router.py rename to src/primaite/simulator/network/hardware/nodes/network/router.py index 69717ae6..06464fd9 100644 --- a/src/primaite/simulator/network/hardware/nodes/router.py +++ b/src/primaite/simulator/network/hardware/nodes/network/router.py @@ -1,19 +1,23 @@ from __future__ import annotations -import secrets from enum import Enum from ipaddress import IPv4Address, IPv4Network -from typing import Dict, List, Optional, Tuple, Union +from typing import Dict, Any +from typing import List, Optional, Tuple, Union from prettytable import MARKDOWN, PrettyTable from primaite.simulator.core import RequestManager, RequestType, SimComponent -from primaite.simulator.network.hardware.base import NIC, Node +from primaite.simulator.network.hardware.base import IPWiredNetworkInterface from primaite.simulator.network.hardware.node_operating_state import NodeOperatingState -from primaite.simulator.network.transmission.data_link_layer import EthernetHeader, Frame -from primaite.simulator.network.transmission.network_layer import IPPacket, IPProtocol -from primaite.simulator.network.transmission.transport_layer import Port, TCPHeader +from primaite.simulator.network.hardware.nodes.network.network_node import NetworkNode +from primaite.simulator.network.protocols.arp import ARPPacket +from primaite.simulator.network.transmission.data_link_layer import Frame +from primaite.simulator.network.transmission.network_layer import IPProtocol +from primaite.simulator.network.transmission.transport_layer import Port from primaite.simulator.system.core.sys_log import SysLog +from primaite.simulator.system.services.arp.arp import ARP +from primaite.simulator.system.services.icmp.icmp import ICMP class ACLAction(Enum): @@ -197,14 +201,14 @@ class AccessControlList(SimComponent): return self._acl def add_rule( - self, - action: ACLAction, - protocol: Optional[IPProtocol] = None, - src_ip_address: Optional[Union[str, IPv4Address]] = None, - src_port: Optional[Port] = None, - dst_ip_address: Optional[Union[str, IPv4Address]] = None, - dst_port: Optional[Port] = None, - position: int = 0, + self, + action: ACLAction, + protocol: Optional[IPProtocol] = None, + src_ip_address: Optional[Union[str, IPv4Address]] = None, + src_port: Optional[Port] = None, + dst_ip_address: Optional[Union[str, IPv4Address]] = None, + dst_port: Optional[Port] = None, + position: int = 0, ) -> None: """ Add a new ACL rule. @@ -251,12 +255,12 @@ class AccessControlList(SimComponent): raise ValueError(f"Cannot remove ACL rule, position {position} is out of bounds.") def is_permitted( - self, - protocol: IPProtocol, - src_ip_address: Union[str, IPv4Address], - src_port: Optional[Port], - dst_ip_address: Union[str, IPv4Address], - dst_port: Optional[Port], + self, + protocol: IPProtocol, + src_ip_address: Union[str, IPv4Address], + src_port: Optional[Port], + dst_ip_address: Union[str, IPv4Address], + dst_port: Optional[Port], ) -> Tuple[bool, Optional[Union[str, ACLRule]]]: """ Check if a packet with the given properties is permitted through the ACL. @@ -278,23 +282,23 @@ class AccessControlList(SimComponent): continue if ( - (rule.src_ip_address == src_ip_address or rule.src_ip_address is None) - and (rule.dst_ip_address == dst_ip_address or rule.dst_ip_address is None) - and (rule.protocol == protocol or rule.protocol is None) - and (rule.src_port == src_port or rule.src_port is None) - and (rule.dst_port == dst_port or rule.dst_port is None) + (rule.src_ip_address == src_ip_address or rule.src_ip_address is None) + and (rule.dst_ip_address == dst_ip_address or rule.dst_ip_address is None) + and (rule.protocol == protocol or rule.protocol is None) + and (rule.src_port == src_port or rule.src_port is None) + and (rule.dst_port == dst_port or rule.dst_port is None) ): return rule.action == ACLAction.PERMIT, rule return self.implicit_action == ACLAction.PERMIT, f"Implicit {self.implicit_action.name}" def get_relevant_rules( - self, - protocol: IPProtocol, - src_ip_address: Union[str, IPv4Address], - src_port: Port, - dst_ip_address: Union[str, IPv4Address], - dst_port: Port, + self, + protocol: IPProtocol, + src_ip_address: Union[str, IPv4Address], + src_port: Port, + dst_ip_address: Union[str, IPv4Address], + dst_port: Port, ) -> List[ACLRule]: """ Get the list of relevant rules for a packet with given properties. @@ -316,11 +320,11 @@ class AccessControlList(SimComponent): continue if ( - (rule.src_ip_address == src_ip_address or rule.src_ip_address is None) - or (rule.dst_ip_address == dst_ip_address or rule.dst_ip_address is None) - or (rule.protocol == protocol or rule.protocol is None) - or (rule.src_port == src_port or rule.src_port is None) - or (rule.dst_port == dst_port or rule.dst_port is None) + (rule.src_ip_address == src_ip_address or rule.src_ip_address is None) + or (rule.dst_ip_address == dst_ip_address or rule.dst_ip_address is None) + or (rule.protocol == protocol or rule.protocol is None) + or (rule.src_port == src_port or rule.src_port is None) + or (rule.dst_port == dst_port or rule.dst_port is None) ): relevant_rules.append(rule) @@ -437,11 +441,11 @@ class RouteTable(SimComponent): pass def add_route( - self, - address: Union[IPv4Address, str], - subnet_mask: Union[IPv4Address, str], - next_hop_ip_address: Union[IPv4Address, str], - metric: float = 0.0, + self, + address: Union[IPv4Address, str], + subnet_mask: Union[IPv4Address, str], + next_hop_ip_address: Union[IPv4Address, str], + metric: float = 0.0, ): """ Add a route to the routing table. @@ -528,7 +532,79 @@ class RouteTable(SimComponent): table.add_row([index, f"{route.address}/{network.prefixlen}", route.next_hop_ip_address, route.metric]) print(table) -class RouterNIC(NIC): + +class RouterARP(ARP): + """ + Inherits from ARPCache and adds router-specific ARP packet processing. + + :ivar SysLog sys_log: A system log for logging messages. + :ivar Router router: The router to which this ARP cache belongs. + """ + router: Optional[Router] = None + + def get_arp_cache_mac_address(self, ip_address: IPv4Address) -> Optional[str]: + arp_entry = self.arp.get(ip_address) + + if arp_entry: + return arp_entry.mac_address + return None + + def get_arp_cache_network_interface(self, ip_address: IPv4Address) -> Optional[RouterInterface]: + + arp_entry = self.arp.get(ip_address) + if arp_entry: + return self.software_manager.node.network_interfaces[arp_entry.network_interface_uuid] + for network_interface in self.router.network_interfaces.values(): + if ip_address in network_interface.ip_network: + return network_interface + return None + + def _process_arp_request(self, arp_packet: ARPPacket, from_network_interface: RouterInterface): + super()._process_arp_request(arp_packet, from_network_interface) + + # If the target IP matches one of the router's NICs + for network_interface in self.router.network_interfaces.values(): + if network_interface.enabled and network_interface.ip_address == arp_packet.target_ip_address: + arp_reply = arp_packet.generate_reply(from_network_interface.mac_address) + self.send_arp_reply(arp_reply) + return + + def _process_arp_reply(self, arp_packet: ARPPacket, from_network_interface: RouterInterface): + if arp_packet.target_ip_address == from_network_interface.ip_address: + super()._process_arp_reply(arp_packet, from_network_interface) + + def receive(self, payload: Any, session_id: str, **kwargs) -> bool: + """ + Processes received data, handling ARP packets. + + :param payload: The payload received. + :param session_id: The session ID associated with the received data. + :param kwargs: Additional keyword arguments. + :return: True if the payload was processed successfully, otherwise False. + """ + if not super().receive(payload, session_id, **kwargs): + return False + + arp_packet: ARPPacket = payload + from_network_interface: RouterInterface = kwargs["from_network_interface"] + + for network_interface in self.router.network_interfaces.values(): + # ARP frame is for this Router + if network_interface.ip_address == arp_packet.target_ip_address: + if payload.request: + self._process_arp_request(arp_packet=arp_packet, from_network_interface=from_network_interface) + else: + self._process_arp_reply(arp_packet=arp_packet, from_network_interface=from_network_interface) + return True + + # ARP frame is not for this router, pass back down to Router to continue routing + frame: Frame = kwargs["frame"] + self.router.process_frame(frame=frame, from_network_interface=from_network_interface) + + return True + + +class RouterNIC(IPWiredNetworkInterface): """ A Router-specific Network Interface Card (NIC) that extends the standard NIC functionality. @@ -561,7 +637,7 @@ class RouterNIC(NIC): self.pcap.capture_inbound(frame) # If this destination or is broadcast if frame.ethernet.dst_mac_addr == self.mac_address or frame.ethernet.dst_mac_addr == "ff:ff:ff:ff:ff:ff": - self._connected_node.receive_frame(frame=frame, from_nic=self) + self._connected_node.receive_frame(frame=frame, from_network_interface=self) return True return False @@ -569,21 +645,63 @@ class RouterNIC(NIC): return f"{self.mac_address}/{self.ip_address}" -class Router(Node): +class RouterInterface(IPWiredNetworkInterface): + """ + Represents a Router Interface. + + Router interfaces are used to connect routers to networks. They can route packets across different networks, + hence have IP addressing information. + + Inherits from: + - WiredNetworkInterface: Provides properties and methods specific to wired connections. + - Layer3Interface: Provides Layer 3 properties like ip_address and subnet_mask. + """ + + def receive_frame(self, frame: Frame) -> bool: + """ + Receives a network frame on the interface. + + :param frame: The network frame being received. + :return: A boolean indicating whether the frame was successfully received. + """ + if self.enabled: + frame.decrement_ttl() + if frame.ip and frame.ip.ttl < 1: + self._connected_node.sys_log.info("Frame discarded as TTL limit reached") + return False + frame.set_received_timestamp() + self.pcap.capture_inbound(frame) + # If this destination or is broadcast + if frame.ethernet.dst_mac_addr == self.mac_address or frame.ethernet.dst_mac_addr == "ff:ff:ff:ff:ff:ff": + self._connected_node.receive_frame(frame=frame, from_network_interface=self) + return True + return False + + def __str__(self) -> str: + """ + String representation of the NIC. + + :return: A string combining the port number, MAC address and IP address of the NIC. + """ + return f"Port {self.port_num}: {self.mac_address}/{self.ip_address}" + + +class Router(NetworkNode): """ A class to represent a network router node. :ivar str hostname: The name of the router node. :ivar int num_ports: The number of ports in the router. - :ivar dict kwargs: Optional keyword arguments for SysLog, ACL, RouteTable, RouterARPCache, RouterICMP. + :ivar dict kwargs: Optional keyword arguments for SysLog, ACL, RouteTable, RouterARP, RouterICMP. """ num_ports: int - ethernet_ports: Dict[int, RouterNIC] = {} + network_interfaces: Dict[str, RouterInterface] = {} + "The Router Interfaces on the node." + network_interface: Dict[int, RouterInterface] = {} + "The Router Interfaceson the node by port id." acl: AccessControlList route_table: RouteTable - # arp: RouterARPCache - # icmp: RouterICMP def __init__(self, hostname: str, num_ports: int = 5, **kwargs): if not kwargs.get("sys_log"): @@ -592,23 +710,28 @@ class Router(Node): kwargs["acl"] = AccessControlList(sys_log=kwargs["sys_log"], implicit_action=ACLAction.DENY) if not kwargs.get("route_table"): kwargs["route_table"] = RouteTable(sys_log=kwargs["sys_log"]) - # if not kwargs.get("arp"): - # kwargs["arp"] = RouterARPCache(sys_log=kwargs.get("sys_log"), router=self) - # if not kwargs.get("icmp"): - # kwargs["icmp"] = RouterICMP(sys_log=kwargs.get("sys_log"), arp_cache=kwargs.get("arp"), router=self) super().__init__(hostname=hostname, num_ports=num_ports, **kwargs) - # TODO: Install RouterICMP - # TODO: Install RouterARP for i in range(1, self.num_ports + 1): - nic = RouterNIC(ip_address="127.0.0.1", subnet_mask="255.0.0.0", gateway="0.0.0.0") - self.connect_nic(nic) - self.ethernet_ports[i] = nic + network_interface = RouterInterface(ip_address="127.0.0.1", subnet_mask="255.0.0.0", gateway="0.0.0.0") + self.connect_nic(network_interface) + self.network_interface[i] = network_interface - self.arp.nics = self.nics - self.icmp.arp = self.arp + self._set_default_acl() self.set_original_state() + + def _install_system_software(self): + """Install System Software - software that is usually provided with the OS.""" + self.software_manager.install(ICMP) + self.software_manager.install(RouterARP) + arp: RouterARP = self.software_manager.arp # noqa + arp.router = self + + def _set_default_acl(self): + self.acl.add_rule(action=ACLAction.PERMIT, src_port=Port.ARP, dst_port=Port.ARP, position=22) + self.acl.add_rule(action=ACLAction.PERMIT, protocol=IPProtocol.ICMP, position=23) + def set_original_state(self): """Sets the original state.""" self.acl.set_original_state() @@ -619,11 +742,11 @@ class Router(Node): def reset_component_for_episode(self, episode: int): """Reset the original state of the SimComponent.""" - self.arp.clear() + self.software_manager.arp.clear() self.acl.reset_component_for_episode(episode) self.route_table.reset_component_for_episode(episode) - for i, nic in self.ethernet_ports.items(): - nic.reset_component_for_episode(episode) + for i, network_interface in self.network_interface.items(): + network_interface.reset_component_for_episode(episode) self.enable_port(i) super().reset_component_for_episode(episode) @@ -633,15 +756,15 @@ class Router(Node): rm.add_request("acl", RequestType(func=self.acl._request_manager)) return rm - def _get_port_of_nic(self, target_nic: NIC) -> Optional[int]: + def _get_port_of_nic(self, target_nic: RouterInterface) -> Optional[int]: """ Retrieve the port number for a given NIC. :param target_nic: Target network interface. :return: The port number if NIC is found, otherwise None. """ - for port, nic in self.ethernet_ports.items(): - if nic == target_nic: + for port, network_interface in self.network_interface.items(): + if network_interface == target_nic: return port def describe_state(self) -> Dict: @@ -655,83 +778,98 @@ class Router(Node): state["acl"] = self.acl.describe_state() return state - def process_frame(self, frame: Frame, from_nic: NIC, re_attempt: bool = False) -> None: + def process_frame(self, frame: Frame, from_network_interface: RouterInterface) -> None: """ Process a Frame. :param frame: The frame to be routed. - :param from_nic: The source network interface. - :param re_attempt: Flag to indicate if the routing is a reattempt. + :param from_network_interface: The source network interface. """ - # Check if src ip is on network of one of the NICs - nic = self.arp.get_arp_cache_nic(frame.ip.dst_ip_address) - target_mac = self.arp.get_arp_cache_mac_address(frame.ip.dst_ip_address) + # check if frame is addressed to this Router but has failed to be received by a service of application at the + # receive_frame stage + if frame.ip: + for network_interface in self.network_interfaces.values(): + if network_interface.ip_address == frame.ip.dst_ip_address: + self.sys_log.info(f"Dropping frame destined for this router on an port that isn't open.") + return - if re_attempt and not nic: + network_interface: RouterInterface = self.software_manager.arp.get_arp_cache_network_interface( + frame.ip.dst_ip_address + ) + target_mac = self.software_manager.arp.get_arp_cache_mac_address(frame.ip.dst_ip_address) + self.software_manager.arp.show() + + if not network_interface: self.sys_log.info(f"Destination {frame.ip.dst_ip_address} is unreachable") + # TODO: Send something back to src, is it some sort of ICMP? return - if not nic: - self.arp.send_arp_request( - frame.ip.dst_ip_address, ignore_networks=[frame.ip.src_ip_address, from_nic.ip_address] - ) - return self.process_frame(frame=frame, from_nic=from_nic, re_attempt=True) - - if not nic.enabled: - self.sys_log.info(f"Frame dropped as NIC {nic} is not enabled") + if not network_interface.enabled: + self.sys_log.info(f"Frame dropped as NIC {network_interface} is not enabled") + # TODO: Send something back to src, is it some sort of ICMP? return - if frame.ip.dst_ip_address in nic.ip_network: - from_port = self._get_port_of_nic(from_nic) - to_port = self._get_port_of_nic(nic) + if frame.ip.dst_ip_address in network_interface.ip_network: + from_port = self._get_port_of_nic(from_network_interface) + to_port = self._get_port_of_nic(network_interface) self.sys_log.info(f"Forwarding frame to internally from port {from_port} to port {to_port}") frame.decrement_ttl() if frame.ip and frame.ip.ttl < 1: self.sys_log.info("Frame discarded as TTL limit reached") + # TODO: Send something back to src, is it some sort of ICMP? return - frame.ethernet.src_mac_addr = nic.mac_address + frame.ethernet.src_mac_addr = network_interface.mac_address frame.ethernet.dst_mac_addr = target_mac - nic.send_frame(frame) + network_interface.send_frame(frame) return else: - self._route_frame(frame, from_nic) + self.route_frame(frame, from_network_interface) - def _route_frame(self, frame: Frame, from_nic: NIC, re_attempt: bool = False) -> None: + def route_frame(self, frame: Frame, from_network_interface: RouterInterface) -> None: route = self.route_table.find_best_route(frame.ip.dst_ip_address) if route: - nic = self.arp.get_arp_cache_nic(route.next_hop_ip_address) - target_mac = self.arp.get_arp_cache_mac_address(route.next_hop_ip_address) - if re_attempt and not nic: + network_interface = self.software_managerarp.get_arp_cache_network_interface(route.next_hop_ip_address) + target_mac = self.software_manager.arp.get_arp_cache_mac_address(route.next_hop_ip_address) + if not network_interface: self.sys_log.info(f"Destination {frame.ip.dst_ip_address} is unreachable") + # TODO: Send something back to src, is it some sort of ICMP? return - if not nic: - self.arp.send_arp_request(frame.ip.dst_ip_address, ignore_networks=[frame.ip.src_ip_address]) - return self.process_frame(frame=frame, from_nic=from_nic, re_attempt=True) - - if not nic.enabled: - self.sys_log.info(f"Frame dropped as NIC {nic} is not enabled") + if not network_interface.enabled: + self.sys_log.info(f"Frame dropped as NIC {network_interface} is not enabled") + # TODO: Send something back to src, is it some sort of ICMP? return - from_port = self._get_port_of_nic(from_nic) - to_port = self._get_port_of_nic(nic) + from_port = self._get_port_of_nic(from_network_interface) + to_port = self._get_port_of_nic(network_interface) self.sys_log.info(f"Routing frame to internally from port {from_port} to port {to_port}") frame.decrement_ttl() if frame.ip and frame.ip.ttl < 1: self.sys_log.info("Frame discarded as TTL limit reached") + # TODO: Send something back to src, is it some sort of ICMP? return - frame.ethernet.src_mac_addr = nic.mac_address + frame.ethernet.src_mac_addr = network_interface.mac_address frame.ethernet.dst_mac_addr = target_mac - nic.send_frame(frame) + network_interface.send_frame(frame) - def receive_frame(self, frame: Frame, from_nic: NIC): + def receive_frame(self, frame: Frame, from_network_interface: RouterInterface): """ - Receive a frame from a NIC and processes it based on its protocol. + Receive a frame from a RouterInterface and processes it based on its protocol. :param frame: The incoming frame. - :param from_nic: The network interface where the frame is coming from. + :param from_network_interface: The network interface where the frame is coming from. """ - process_frame = False + + if self.operating_state != NodeOperatingState.ON: + return + + if frame.ip and self.software_manager.arp: + self.software_manager.arp.add_arp_cache_entry( + ip_address=frame.ip.src_ip_address, + mac_address=frame.ethernet.src_mac_addr, + network_interface=from_network_interface + ) + protocol = frame.ip.protocol src_ip_address = frame.ip.src_ip_address dst_ip_address = frame.ip.dst_ip_address @@ -754,21 +892,32 @@ class Router(Node): ) if not permitted: - at_port = self._get_port_of_nic(from_nic) + at_port = self._get_port_of_nic(from_network_interface) self.sys_log.info(f"Frame blocked at port {at_port} by rule {rule}") return - self.arp.add_arp_cache_entry(src_ip_address, frame.ethernet.src_mac_addr, from_nic) - if frame.ip.protocol == IPProtocol.ICMP: - self.icmp.process_icmp(frame=frame, from_nic=from_nic) + + self.software_manager.arp.add_arp_cache_entry( + ip_address=src_ip_address, mac_address=frame.ethernet.src_mac_addr, + network_interface=from_network_interface + ) + + # Check if the destination port is open on the Node + dst_port = None + if frame.tcp: + dst_port = frame.tcp.dst_port + elif frame.udp: + dst_port = frame.udp.dst_port + + send_to_session_manager = False + if ((frame.icmp and dst_ip_address == from_network_interface.ip_address) + or (dst_port in self.software_manager.get_open_ports())): + send_to_session_manager = True + + if send_to_session_manager: + # Port is open on this Router so pass Frame up to session manager first + self.session_manager.receive_frame(frame, from_network_interface) else: - if src_port == Port.ARP: - self.arp.process_arp_packet(from_nic=from_nic, frame=frame, route_table=self.route_table) - return - else: - # All other traffic - process_frame = True - if process_frame: - self.process_frame(frame, from_nic) + self.process_frame(frame, from_network_interface) def configure_port(self, port: int, ip_address: Union[IPv4Address, str], subnet_mask: Union[IPv4Address, str]): """ @@ -782,10 +931,12 @@ class Router(Node): ip_address = IPv4Address(ip_address) if not isinstance(subnet_mask, IPv4Address): subnet_mask = IPv4Address(subnet_mask) - nic = self.ethernet_ports[port] - nic.ip_address = ip_address - nic.subnet_mask = subnet_mask - self.sys_log.info(f"Configured port {port} with ip_address={ip_address}/{nic.ip_network.prefixlen}") + network_interface = self.network_interface[port] + network_interface.ip_address = ip_address + network_interface.subnet_mask = subnet_mask + self.sys_log.info( + f"Configured Network Interface {network_interface}" + ) self.set_original_state() def enable_port(self, port: int): @@ -794,9 +945,9 @@ class Router(Node): :param port: The port to enable. """ - nic = self.ethernet_ports.get(port) - if nic: - nic.enable() + network_interface = self.network_interface.get(port) + if network_interface: + network_interface.enable() def disable_port(self, port: int): """ @@ -804,9 +955,9 @@ class Router(Node): :param port: The port to disable. """ - nic = self.ethernet_ports.get(port) - if nic: - nic.disable() + network_interface = self.network_interface.get(port) + if network_interface: + network_interface.disable() def show(self, markdown: bool = False): """ @@ -820,14 +971,14 @@ class Router(Node): table.set_style(MARKDOWN) table.align = "l" table.title = f"{self.hostname} Ethernet Interfaces" - for port, nic in self.ethernet_ports.items(): + for port, network_interface in self.network_interface.items(): table.add_row( [ port, - nic.mac_address, - f"{nic.ip_address}/{nic.ip_network.prefixlen}", - nic.speed, - "Enabled" if nic.enabled else "Disabled", + network_interface.mac_address, + f"{network_interface.ip_address}/{network_interface.ip_network.prefixlen}", + network_interface.speed, + "Enabled" if network_interface.enabled else "Disabled", ] ) print(table) diff --git a/src/primaite/simulator/network/hardware/nodes/switch.py b/src/primaite/simulator/network/hardware/nodes/network/switch.py similarity index 56% rename from src/primaite/simulator/network/hardware/nodes/switch.py rename to src/primaite/simulator/network/hardware/nodes/network/switch.py index b394bae0..e7d5d616 100644 --- a/src/primaite/simulator/network/hardware/nodes/switch.py +++ b/src/primaite/simulator/network/hardware/nodes/network/switch.py @@ -1,16 +1,93 @@ -from typing import Dict +from __future__ import annotations +from typing import Dict, Optional from prettytable import MARKDOWN, PrettyTable from primaite import getLogger from primaite.exceptions import NetworkError -from primaite.simulator.network.hardware.base import Link, Node, SwitchPort +from primaite.simulator.network.hardware.base import WiredNetworkInterface, NetworkInterface, Link +from primaite.simulator.network.hardware.nodes.network.network_node import NetworkNode from primaite.simulator.network.transmission.data_link_layer import Frame _LOGGER = getLogger(__name__) -class Switch(Node): +class SwitchPort(WiredNetworkInterface): + """ + Represents a Switch Port. + + Switch ports connect devices within the same network. They operate at the data link layer (Layer 2) of the OSI model + and are responsible for receiving and forwarding frames based on MAC addresses. Despite operating at Layer 2, + they are an essential part of network infrastructure, enabling LAN segmentation, bandwidth management, and + the creation of VLANs. + + Inherits from: + - WiredNetworkInterface: Provides properties and methods specific to wired connections. + + Switch ports typically do not have IP addresses assigned to them as they function at Layer 2, but managed switches + can have management IP addresses for remote management and configuration purposes. + """ + _connected_node: Optional[Switch] = None + "The Switch to which the SwitchPort is connected." + + def set_original_state(self): + """Sets the original state.""" + vals_to_include = {"port_num", "mac_address", "speed", "mtu", "enabled"} + self._original_state = self.model_dump(include=vals_to_include) + super().set_original_state() + + def describe_state(self) -> Dict: + """ + Produce a dictionary describing the current state of this object. + + + :return: Current state of this object and child objects. + :rtype: Dict + """ + state = super().describe_state() + state.update( + { + "mac_address": self.mac_address, + "speed": self.speed, + "mtu": self.mtu, + "enabled": self.enabled, + } + ) + return state + + def send_frame(self, frame: Frame) -> bool: + """ + Attempts to send a network frame through the interface. + + :param frame: The network frame to be sent. + :return: A boolean indicating whether the frame was successfully sent. + """ + if self.enabled: + self.pcap.capture_outbound(frame) + self._connected_link.transmit_frame(sender_nic=self, frame=frame) + return True + # Cannot send Frame as the SwitchPort is not enabled + return False + + def receive_frame(self, frame: Frame) -> bool: + """ + Receives a network frame on the interface. + + :param frame: The network frame being received. + :return: A boolean indicating whether the frame was successfully received. + """ + if self.enabled: + frame.decrement_ttl() + if frame.ip and frame.ip.ttl < 1: + self._connected_node.sys_log.info("Frame discarded as TTL limit reached") + return False + self.pcap.capture_inbound(frame) + self._connected_node.receive_frame(frame=frame, from_network_interface=self) + return True + return False + + +class Switch(NetworkNode): """ A class representing a Layer 2 network switch. @@ -30,7 +107,7 @@ class Switch(Node): self.switch_ports = {i: SwitchPort() for i in range(1, self.num_ports + 1)} for port_num, port in self.switch_ports.items(): port._connected_node = self - port._port_num_on_node = port_num + port.port_num = port_num port.parent = self port.port_num = port_num @@ -78,16 +155,16 @@ class Switch(Node): self.sys_log.info(f"Removed MAC table entry: Port {mac_table_port.port_num} -> {mac_address}") self._add_mac_table_entry(mac_address, switch_port) - def forward_frame(self, frame: Frame, incoming_port: SwitchPort): + def receive_frame(self, frame: Frame, from_network_interface: SwitchPort): """ Forward a frame to the appropriate port based on the destination MAC address. - :param frame: The Frame to be forwarded. - :param incoming_port: The port number from which the frame was received. + :param frame: The Frame being received. + :param from_network_interface: The SwitchPort that received the frame. """ src_mac = frame.ethernet.src_mac_addr dst_mac = frame.ethernet.dst_mac_addr - self._add_mac_table_entry(src_mac, incoming_port) + self._add_mac_table_entry(src_mac, from_network_interface) outgoing_port = self.mac_address_table.get(dst_mac) if outgoing_port and dst_mac.lower() != "ff:ff:ff:ff:ff:ff": @@ -95,7 +172,7 @@ class Switch(Node): else: # If the destination MAC is not in the table, flood to all ports except incoming for port in self.switch_ports.values(): - if port.enabled and port != incoming_port: + if port.enabled and port != from_network_interface: port.send_frame(frame) def disconnect_link_from_port(self, link: Link, port_number: int): diff --git a/src/primaite/simulator/network/networks.py b/src/primaite/simulator/network/networks.py index 630846b3..1d47fdef 100644 --- a/src/primaite/simulator/network/networks.py +++ b/src/primaite/simulator/network/networks.py @@ -1,11 +1,12 @@ from ipaddress import IPv4Address from primaite.simulator.network.container import Network -from primaite.simulator.network.hardware.base import NIC, NodeOperatingState -from primaite.simulator.network.hardware.nodes.computer import Computer -from primaite.simulator.network.hardware.nodes.router import ACLAction, Router -from primaite.simulator.network.hardware.nodes.server import Server -from primaite.simulator.network.hardware.nodes.switch import Switch +from primaite.simulator.network.hardware.base import NodeOperatingState +from primaite.simulator.network.hardware.nodes.host.computer import Computer +from primaite.simulator.network.hardware.nodes.host.host_node import NIC +from primaite.simulator.network.hardware.nodes.network.router import ACLAction, Router +from primaite.simulator.network.hardware.nodes.host.server import Server +from primaite.simulator.network.hardware.nodes.network.switch import Switch from primaite.simulator.network.transmission.network_layer import IPProtocol from primaite.simulator.network.transmission.transport_layer import Port from primaite.simulator.system.applications.database_client import DatabaseClient @@ -40,13 +41,13 @@ def client_server_routed() -> Network: # Switch 1 switch_1 = Switch(hostname="switch_1", num_ports=6) switch_1.power_on() - network.connect(endpoint_a=router_1.ethernet_ports[1], endpoint_b=switch_1.switch_ports[6]) + network.connect(endpoint_a=router_1.network_interface[1], endpoint_b=switch_1.switch_ports[6]) router_1.enable_port(1) # Switch 2 switch_2 = Switch(hostname="switch_2", num_ports=6) switch_2.power_on() - network.connect(endpoint_a=router_1.ethernet_ports[2], endpoint_b=switch_2.switch_ports[6]) + network.connect(endpoint_a=router_1.network_interface[2], endpoint_b=switch_2.switch_ports[6]) router_1.enable_port(2) # Client 1 @@ -58,7 +59,7 @@ def client_server_routed() -> Network: operating_state=NodeOperatingState.ON, ) client_1.power_on() - network.connect(endpoint_b=client_1.ethernet_port[1], endpoint_a=switch_2.switch_ports[1]) + network.connect(endpoint_b=client_1.network_interface[1], endpoint_a=switch_2.switch_ports[1]) # Server 1 server_1 = Server( @@ -69,7 +70,7 @@ def client_server_routed() -> Network: operating_state=NodeOperatingState.ON, ) server_1.power_on() - network.connect(endpoint_b=server_1.ethernet_port[1], endpoint_a=switch_1.switch_ports[1]) + network.connect(endpoint_b=server_1.network_interface[1], endpoint_a=switch_1.switch_ports[1]) router_1.acl.add_rule(action=ACLAction.PERMIT, src_port=Port.ARP, dst_port=Port.ARP, position=22) @@ -126,13 +127,13 @@ def arcd_uc2_network() -> Network: # Switch 1 switch_1 = Switch(hostname="switch_1", num_ports=8, operating_state=NodeOperatingState.ON) switch_1.power_on() - network.connect(endpoint_a=router_1.ethernet_ports[1], endpoint_b=switch_1.switch_ports[8]) + network.connect(endpoint_a=router_1.network_interface[1], endpoint_b=switch_1.switch_ports[8]) router_1.enable_port(1) # Switch 2 switch_2 = Switch(hostname="switch_2", num_ports=8, operating_state=NodeOperatingState.ON) switch_2.power_on() - network.connect(endpoint_a=router_1.ethernet_ports[2], endpoint_b=switch_2.switch_ports[8]) + network.connect(endpoint_a=router_1.network_interface[2], endpoint_b=switch_2.switch_ports[8]) router_1.enable_port(2) # Client 1 @@ -145,7 +146,7 @@ def arcd_uc2_network() -> Network: operating_state=NodeOperatingState.ON, ) client_1.power_on() - network.connect(endpoint_b=client_1.ethernet_port[1], endpoint_a=switch_2.switch_ports[1]) + network.connect(endpoint_b=client_1.network_interface[1], endpoint_a=switch_2.switch_ports[1]) client_1.software_manager.install(DataManipulationBot) db_manipulation_bot: DataManipulationBot = client_1.software_manager.software.get("DataManipulationBot") db_manipulation_bot.configure( @@ -167,7 +168,7 @@ def arcd_uc2_network() -> Network: client_2.power_on() web_browser = client_2.software_manager.software.get("WebBrowser") web_browser.target_url = "http://arcd.com/users/" - network.connect(endpoint_b=client_2.ethernet_port[1], endpoint_a=switch_2.switch_ports[2]) + network.connect(endpoint_b=client_2.network_interface[1], endpoint_a=switch_2.switch_ports[2]) # Domain Controller domain_controller = Server( @@ -180,7 +181,7 @@ def arcd_uc2_network() -> Network: domain_controller.power_on() domain_controller.software_manager.install(DNSServer) - network.connect(endpoint_b=domain_controller.ethernet_port[1], endpoint_a=switch_1.switch_ports[1]) + network.connect(endpoint_b=domain_controller.network_interface[1], endpoint_a=switch_1.switch_ports[1]) # Database Server database_server = Server( @@ -192,7 +193,7 @@ def arcd_uc2_network() -> Network: operating_state=NodeOperatingState.ON, ) database_server.power_on() - network.connect(endpoint_b=database_server.ethernet_port[1], endpoint_a=switch_1.switch_ports[3]) + network.connect(endpoint_b=database_server.network_interface[1], endpoint_a=switch_1.switch_ports[3]) ddl = """ CREATE TABLE IF NOT EXISTS user ( @@ -270,7 +271,7 @@ def arcd_uc2_network() -> Network: database_client: DatabaseClient = web_server.software_manager.software.get("DatabaseClient") database_client.configure(server_ip_address=IPv4Address("192.168.1.14")) - network.connect(endpoint_b=web_server.ethernet_port[1], endpoint_a=switch_1.switch_ports[2]) + network.connect(endpoint_b=web_server.network_interface[1], endpoint_a=switch_1.switch_ports[2]) database_client.run() database_client.connect() @@ -291,7 +292,7 @@ def arcd_uc2_network() -> Network: ) backup_server.power_on() backup_server.software_manager.install(FTPServer) - network.connect(endpoint_b=backup_server.ethernet_port[1], endpoint_a=switch_1.switch_ports[4]) + network.connect(endpoint_b=backup_server.network_interface[1], endpoint_a=switch_1.switch_ports[4]) # Security Suite security_suite = Server( @@ -303,9 +304,9 @@ def arcd_uc2_network() -> Network: operating_state=NodeOperatingState.ON, ) security_suite.power_on() - network.connect(endpoint_b=security_suite.ethernet_port[1], endpoint_a=switch_1.switch_ports[7]) + network.connect(endpoint_b=security_suite.network_interface[1], endpoint_a=switch_1.switch_ports[7]) security_suite.connect_nic(NIC(ip_address="192.168.10.110", subnet_mask="255.255.255.0")) - network.connect(endpoint_b=security_suite.ethernet_port[2], endpoint_a=switch_2.switch_ports[7]) + network.connect(endpoint_b=security_suite.network_interface[2], endpoint_a=switch_2.switch_ports[7]) router_1.acl.add_rule(action=ACLAction.PERMIT, src_port=Port.ARP, dst_port=Port.ARP, position=22) diff --git a/src/primaite/simulator/network/protocols/arp.py b/src/primaite/simulator/network/protocols/arp.py index 7b3e4509..2e44884a 100644 --- a/src/primaite/simulator/network/protocols/arp.py +++ b/src/primaite/simulator/network/protocols/arp.py @@ -13,11 +13,12 @@ class ARPEntry(BaseModel): Represents an entry in the ARP cache. :param mac_address: The MAC address associated with the IP address. - :param nic: The NIC through which the NIC with the IP address is reachable. + :param network_interface_uuid: The UIId of the Network Interface through which the NIC with the IP address is + reachable. """ mac_address: str - nic_uuid: str + network_interface_uuid: str class ARPPacket(DataPacket): diff --git a/src/primaite/simulator/system/core/packet_capture.py b/src/primaite/simulator/system/core/packet_capture.py index d3a14d2a..5d34fd63 100644 --- a/src/primaite/simulator/system/core/packet_capture.py +++ b/src/primaite/simulator/system/core/packet_capture.py @@ -21,7 +21,7 @@ class PacketCapture: The PCAPs are logged to: //__pcap.log """ - def __init__(self, hostname: str, ip_address: Optional[str] = None, switch_port_number: Optional[int] = None): + def __init__(self, hostname: str, ip_address: Optional[str] = None, interface_num: Optional[int] = None): """ Initialize the PacketCapture process. @@ -32,8 +32,8 @@ class PacketCapture: "The hostname for which PCAP logs are being recorded." self.ip_address: str = ip_address "The IP address associated with the PCAP logs." - self.switch_port_number = switch_port_number - "The SwitchPort number." + self.interface_num = interface_num + "The interface num on the Node." self.inbound_logger = None self.outbound_logger = None @@ -81,8 +81,8 @@ class PacketCapture: """Get PCAP the logger name.""" if self.ip_address: return f"{self.hostname}_{self.ip_address}_{'outbound' if outbound else 'inbound'}_pcap" - if self.switch_port_number: - return f"{self.hostname}_port-{self.switch_port_number}_{'outbound' if outbound else 'inbound'}_pcap" + if self.interface_num: + return f"{self.hostname}_port-{self.interface_num}_{'outbound' if outbound else 'inbound'}_pcap" return f"{self.hostname}_{'outbound' if outbound else 'inbound'}_pcap" def _get_log_path(self, outbound: bool = False) -> Path: diff --git a/src/primaite/simulator/system/core/session_manager.py b/src/primaite/simulator/system/core/session_manager.py index 2120cde3..eafdac8e 100644 --- a/src/primaite/simulator/system/core/session_manager.py +++ b/src/primaite/simulator/system/core/session_manager.py @@ -13,7 +13,7 @@ from primaite.simulator.network.transmission.network_layer import IPPacket, IPPr from primaite.simulator.network.transmission.transport_layer import Port, TCPHeader, UDPHeader if TYPE_CHECKING: - from primaite.simulator.network.hardware.base import ARPCache, NIC + from primaite.simulator.network.hardware.base import NetworkInterface from primaite.simulator.system.core.software_manager import SoftwareManager from primaite.simulator.system.core.sys_log import SysLog @@ -84,8 +84,6 @@ class SessionManager: self.software_manager: SoftwareManager = None # Noqa self.node: Node = None # noqa - - def describe_state(self) -> Dict: """ Produce a dictionary describing the current state of this object. @@ -104,7 +102,7 @@ class SessionManager: @staticmethod def _get_session_key( - frame: Frame, inbound_frame: bool = True + frame: Frame, inbound_frame: bool = True ) -> Tuple[IPProtocol, IPv4Address, Optional[Port], Optional[Port]]: """ Extracts the session key from the given frame. @@ -142,19 +140,19 @@ class SessionManager: dst_port = None return protocol, with_ip_address, src_port, dst_port - def resolve_outbound_nic(self, dst_ip_address: IPv4Address) -> Optional[NIC]: - for nic in self.node.nics.values(): - if dst_ip_address in nic.ip_network and nic.enabled: - return nic - return self.software_manager.arp.get_default_gateway_nic() + def resolve_outbound_network_interface(self, dst_ip_address: IPv4Address) -> Optional['NetworkInterface']: + for network_interface in self.node.network_interfaces.values(): + if dst_ip_address in network_interface.ip_network and network_interface.enabled: + return network_interface + return self.software_manager.arp.get_default_gateway_network_interface() def resolve_outbound_transmission_details( - self, dst_ip_address: Optional[Union[IPv4Address, IPv4Network]] = None, session_id: Optional[str] = None - ) -> Tuple[Optional["NIC"], Optional[str], IPv4Address, Optional[IPProtocol], bool]: + self, dst_ip_address: Optional[Union[IPv4Address, IPv4Network]] = None, session_id: Optional[str] = None + ) -> Tuple[Optional['NetworkInterface'], Optional[str], IPv4Address, Optional[IPProtocol], bool]: if not isinstance(dst_ip_address, (IPv4Address, IPv4Network)): dst_ip_address = IPv4Address(dst_ip_address) is_broadcast = False - outbound_nic = None + outbound_network_interface = None dst_mac_address = None protocol = None @@ -172,36 +170,36 @@ class SessionManager: dst_ip_address = dst_ip_address.broadcast_address if dst_ip_address: # Find a suitable NIC for the broadcast - for nic in self.node.nics.values(): - if dst_ip_address in nic.ip_network and nic.enabled: + for network_interface in self.node.network_interfaces.values(): + if dst_ip_address in network_interface.ip_network and network_interface.enabled: dst_mac_address = "ff:ff:ff:ff:ff:ff" - outbound_nic = nic + outbound_network_interface = network_interface break else: # Resolve MAC address for unicast transmission use_default_gateway = True - for nic in self.node.nics.values(): - if dst_ip_address in nic.ip_network and nic.enabled: + for network_interface in self.node.network_interfaces.values(): + if dst_ip_address in network_interface.ip_network and network_interface.enabled: dst_mac_address = self.software_manager.arp.get_arp_cache_mac_address(dst_ip_address) break if dst_ip_address: use_default_gateway = False - outbound_nic = self.software_manager.arp.get_arp_cache_nic(dst_ip_address) + outbound_network_interface = self.software_manager.arp.get_arp_cache_network_interface(dst_ip_address) if use_default_gateway: dst_mac_address = self.software_manager.arp.get_default_gateway_mac_address() - outbound_nic = self.software_manager.arp.get_default_gateway_nic() - return outbound_nic, dst_mac_address, dst_ip_address, protocol, is_broadcast + outbound_network_interface = self.software_manager.arp.get_default_gateway_network_interface() + return outbound_network_interface, dst_mac_address, dst_ip_address, protocol, is_broadcast def receive_payload_from_software_manager( - self, - payload: Any, - dst_ip_address: Optional[Union[IPv4Address, IPv4Network]] = None, - dst_port: Optional[Port] = None, - session_id: Optional[str] = None, - ip_protocol: IPProtocol = IPProtocol.TCP, - icmp_packet: Optional[ICMPPacket] = None + self, + payload: Any, + dst_ip_address: Optional[Union[IPv4Address, IPv4Network]] = None, + dst_port: Optional[Port] = None, + session_id: Optional[str] = None, + ip_protocol: IPProtocol = IPProtocol.TCP, + icmp_packet: Optional[ICMPPacket] = None ) -> Union[Any, None]: """ Receive a payload from the SoftwareManager and send it to the appropriate NIC for transmission. @@ -222,19 +220,19 @@ class SessionManager: dst_mac_address = "ff:ff:ff:ff:ff:ff" else: dst_mac_address = payload.target_mac_addr - outbound_nic = self.resolve_outbound_nic(payload.target_ip_address) + outbound_network_interface = self.resolve_outbound_network_interface(payload.target_ip_address) is_broadcast = payload.request ip_protocol = IPProtocol.UDP else: vals = self.resolve_outbound_transmission_details( dst_ip_address=dst_ip_address, session_id=session_id ) - outbound_nic, dst_mac_address, dst_ip_address, protocol, is_broadcast = vals + outbound_network_interface, dst_mac_address, dst_ip_address, protocol, is_broadcast = vals if protocol: ip_protocol = protocol # Check if outbound NIC and destination MAC address are resolved - if not outbound_nic or not dst_mac_address: + if not outbound_network_interface or not dst_mac_address: return False tcp_header = None @@ -249,10 +247,18 @@ class SessionManager: src_port=dst_port, dst_port=dst_port, ) + # TODO: Only create IP packet if not ARP + # ip_packet = None + # if dst_port != Port.ARP: + # IPPacket( + # src_ip_address=outbound_network_interface.ip_address, + # dst_ip_address=dst_ip_address, + # protocol=ip_protocol + # ) # Construct the frame for transmission frame = Frame( - ethernet=EthernetHeader(src_mac_addr=outbound_nic.mac_address, dst_mac_addr=dst_mac_address), - ip=IPPacket(src_ip_address=outbound_nic.ip_address, dst_ip_address=dst_ip_address, protocol=ip_protocol), + ethernet=EthernetHeader(src_mac_addr=outbound_network_interface.mac_address, dst_mac_addr=dst_mac_address), + ip=IPPacket(src_ip_address=outbound_network_interface.ip_address, dst_ip_address=dst_ip_address, protocol=ip_protocol), tcp=tcp_header, udp=udp_header, icmp=icmp_packet, @@ -271,9 +277,9 @@ class SessionManager: self.sessions_by_uuid[session.uuid] = session # Send the frame through the NIC - return outbound_nic.send_frame(frame) + return outbound_network_interface.send_frame(frame) - def receive_frame(self, frame: Frame, from_nic: NIC): + def receive_frame(self, frame: Frame, from_network_interface: 'NetworkInterface'): """ Receive a Frame. @@ -302,7 +308,7 @@ class SessionManager: port=dst_port, protocol=frame.ip.protocol, session_id=session.uuid, - from_nic=from_nic, + from_network_interface=from_network_interface, frame=frame ) diff --git a/src/primaite/simulator/system/core/software_manager.py b/src/primaite/simulator/system/core/software_manager.py index 99dc5f38..53725c18 100644 --- a/src/primaite/simulator/system/core/software_manager.py +++ b/src/primaite/simulator/system/core/software_manager.py @@ -167,7 +167,7 @@ class SoftwareManager: ) def receive_payload_from_session_manager( - self, payload: Any, port: Port, protocol: IPProtocol, session_id: str, from_nic: "NIC", frame: Frame + self, payload: Any, port: Port, protocol: IPProtocol, session_id: str, from_network_interface: "NIC", frame: Frame ): """ Receive a payload from the SessionManager and forward it to the corresponding service or application. @@ -177,7 +177,7 @@ class SoftwareManager: """ receiver: Optional[Union[Service, Application]] = self.port_protocol_mapping.get((port, protocol), None) if receiver: - receiver.receive(payload=payload, session_id=session_id, from_nic=from_nic, frame=frame) + receiver.receive(payload=payload, session_id=session_id, from_network_interface=from_network_interface, frame=frame) else: self.sys_log.error(f"No service or application found for port {port} and protocol {protocol}") pass diff --git a/src/primaite/simulator/system/services/arp/arp.py b/src/primaite/simulator/system/services/arp/arp.py index c5b30d69..6a82432e 100644 --- a/src/primaite/simulator/system/services/arp/arp.py +++ b/src/primaite/simulator/system/services/arp/arp.py @@ -1,17 +1,16 @@ from __future__ import annotations from abc import abstractmethod -from ipaddress import IPv4Address from typing import Any, Dict, Optional, Union from prettytable import MARKDOWN, PrettyTable -from primaite.simulator.network.hardware.base import NIC +from primaite.simulator.network.hardware.base import NetworkInterface from primaite.simulator.network.protocols.arp import ARPEntry, ARPPacket -from primaite.simulator.network.transmission.data_link_layer import EthernetHeader, Frame -from primaite.simulator.network.transmission.network_layer import IPPacket, IPProtocol -from primaite.simulator.network.transmission.transport_layer import Port, UDPHeader +from primaite.simulator.network.transmission.network_layer import IPProtocol +from primaite.simulator.network.transmission.transport_layer import Port from primaite.simulator.system.services.service import Service +from primaite.utils.validators import IPV4Address class ARP(Service): @@ -21,7 +20,7 @@ class ARP(Service): Manages ARP for resolving network layer addresses into link layer addresses. It maintains an ARP cache, sends ARP requests and replies, and processes incoming ARP packets. """ - arp: Dict[IPv4Address, ARPEntry] = {} + arp: Dict[IPV4Address, ARPEntry] = {} def __init__(self, **kwargs): kwargs["name"] = "ARP" @@ -30,7 +29,7 @@ class ARP(Service): super().__init__(**kwargs) def describe_state(self) -> Dict: - pass + return super().describe_state() def show(self, markdown: bool = False): """ @@ -48,7 +47,7 @@ class ARP(Service): [ str(ip), arp.mac_address, - self.software_manager.node.nics[arp.nic_uuid].mac_address, + self.software_manager.node.network_interfaces[arp.network_interface_uuid].mac_address, ] ) print(table) @@ -57,7 +56,13 @@ class ARP(Service): """Clears the arp cache.""" self.arp.clear() - def add_arp_cache_entry(self, ip_address: IPv4Address, mac_address: str, nic: NIC, override: bool = False): + def add_arp_cache_entry( + self, + ip_address: IPV4Address, + mac_address: str, + network_interface: NetworkInterface, + override: bool = False + ): """ Add an ARP entry to the cache. @@ -66,20 +71,20 @@ class ARP(Service): :param ip_address: The IP address to be added to the cache. :param mac_address: The MAC address associated with the IP address. - :param nic: The NIC through which the NIC with the IP address is reachable. + :param network_interface: The NIC through which the NIC with the IP address is reachable. :param override: If True, an existing entry for the IP address will be overridden. Default is False. """ - for _nic in self.software_manager.node.nics.values(): - if _nic.ip_address == ip_address: + for _network_interface in self.software_manager.node.network_interfaces.values(): + if _network_interface.ip_address == ip_address: return if override or not self.arp.get(ip_address): - self.sys_log.info(f"Adding ARP cache entry for {mac_address}/{ip_address} via NIC {nic}") - arp_entry = ARPEntry(mac_address=mac_address, nic_uuid=nic.uuid) + self.sys_log.info(f"Adding ARP cache entry for {mac_address}/{ip_address} via NIC {network_interface}") + arp_entry = ARPEntry(mac_address=mac_address, network_interface_uuid=network_interface.uuid) self.arp[ip_address] = arp_entry @abstractmethod - def get_arp_cache_mac_address(self, ip_address: IPv4Address) -> Optional[str]: + def get_arp_cache_mac_address(self, ip_address: IPV4Address) -> Optional[str]: """ Retrieves the MAC address associated with a given IP address from the ARP cache. @@ -89,7 +94,7 @@ class ARP(Service): pass @abstractmethod - def get_arp_cache_nic(self, ip_address: IPv4Address) -> Optional[NIC]: + def get_arp_cache_network_interface(self, ip_address: IPV4Address) -> Optional[NetworkInterface]: """ Retrieves the NIC associated with a given IP address from the ARP cache. @@ -98,18 +103,20 @@ class ARP(Service): """ pass - def send_arp_request(self, target_ip_address: Union[IPv4Address, str]): + def send_arp_request(self, target_ip_address: Union[IPV4Address, str]): """ Sends an ARP request to resolve the MAC address of a target IP address. :param target_ip_address: The target IP address for which the MAC address is being requested. """ - outbound_nic = self.software_manager.session_manager.resolve_outbound_nic(target_ip_address) - if outbound_nic: - self.sys_log.info(f"Sending ARP request from NIC {outbound_nic} for ip {target_ip_address}") + outbound_network_interface = self.software_manager.session_manager.resolve_outbound_network_interface( + target_ip_address + ) + if outbound_network_interface: + self.sys_log.info(f"Sending ARP request from NIC {outbound_network_interface} for ip {target_ip_address}") arp_packet = ARPPacket( - sender_ip_address=outbound_nic.ip_address, - sender_mac_addr=outbound_nic.mac_address, + sender_ip_address=outbound_network_interface.ip_address, + sender_mac_addr=outbound_network_interface.mac_address, target_ip_address=target_ip_address, ) self.software_manager.session_manager.receive_payload_from_software_manager( @@ -125,11 +132,13 @@ class ARP(Service): Sends an ARP reply in response to an ARP request. :param arp_reply: The ARP packet containing the reply. - :param from_nic: The NIC from which the ARP reply is sent. + :param from_network_interface: The NIC from which the ARP reply is sent. """ - outbound_nic = self.software_manager.session_manager.resolve_outbound_nic(arp_reply.target_ip_address) - if outbound_nic: + outbound_network_interface = self.software_manager.session_manager.resolve_outbound_network_interface( + arp_reply.target_ip_address + ) + if outbound_network_interface: self.sys_log.info( f"Sending ARP reply from {arp_reply.sender_mac_addr}/{arp_reply.sender_ip_address} " f"to {arp_reply.target_ip_address}/{arp_reply.target_mac_addr} " @@ -147,31 +156,33 @@ class ARP(Service): @abstractmethod - def _process_arp_request(self, arp_packet: ARPPacket, from_nic: NIC): + def _process_arp_request(self, arp_packet: ARPPacket, from_network_interface: NIC): """ Processes an incoming ARP request. :param arp_packet: The ARP packet containing the request. - :param from_nic: The NIC that received the ARP request. + :param from_network_interface: The NIC that received the ARP request. """ self.sys_log.info( f"Received ARP request for {arp_packet.target_ip_address} from " f"{arp_packet.sender_mac_addr}/{arp_packet.sender_ip_address} " ) - def _process_arp_reply(self, arp_packet: ARPPacket, from_nic: NIC): + def _process_arp_reply(self, arp_packet: ARPPacket, from_network_interface: NIC): """ Processes an incoming ARP reply. :param arp_packet: The ARP packet containing the reply. - :param from_nic: The NIC that received the ARP reply. + :param from_network_interface: The NIC that received the ARP reply. """ self.sys_log.info( f"Received ARP response for {arp_packet.sender_ip_address} " - f"from {arp_packet.sender_mac_addr} via NIC {from_nic}" + f"from {arp_packet.sender_mac_addr} via Network Interface {from_network_interface}" ) self.add_arp_cache_entry( - ip_address=arp_packet.sender_ip_address, mac_address=arp_packet.sender_mac_addr, nic=from_nic + ip_address=arp_packet.sender_ip_address, + mac_address=arp_packet.sender_mac_addr, + network_interface=from_network_interface ) def receive(self, payload: Any, session_id: str, **kwargs) -> bool: @@ -183,15 +194,15 @@ class ARP(Service): :param kwargs: Additional keyword arguments. :return: True if the payload was processed successfully, otherwise False. """ - if not isinstance(payload, ARPPacket): - print("failied on payload check", type(payload)) + if not super().receive(payload, session_id, **kwargs): return False - from_nic = kwargs.get("from_nic") + from_network_interface = kwargs.get("from_network_interface") if payload.request: - self._process_arp_request(arp_packet=payload, from_nic=from_nic) + self._process_arp_request(arp_packet=payload, from_network_interface=from_network_interface) else: - self._process_arp_reply(arp_packet=payload, from_nic=from_nic) + self._process_arp_reply(arp_packet=payload, from_network_interface=from_network_interface) + return True def __contains__(self, item: Any) -> bool: """ diff --git a/src/primaite/simulator/system/services/arp/host_arp.py b/src/primaite/simulator/system/services/arp/host_arp.py deleted file mode 100644 index 4d6f7738..00000000 --- a/src/primaite/simulator/system/services/arp/host_arp.py +++ /dev/null @@ -1,95 +0,0 @@ -from __future__ import annotations - -from ipaddress import IPv4Address -from typing import Optional - -from primaite.simulator.network.hardware.base import NIC -from primaite.simulator.system.services.arp.arp import ARP, ARPPacket - - -class HostARP(ARP): - def get_default_gateway_mac_address(self) -> Optional[str]: - if self.software_manager.node.default_gateway: - return self.get_arp_cache_mac_address(self.software_manager.node.default_gateway) - - def get_default_gateway_nic(self) -> Optional[NIC]: - if self.software_manager.node.default_gateway: - return self.get_arp_cache_nic(self.software_manager.node.default_gateway) - - def _get_arp_cache_mac_address( - self, ip_address: IPv4Address, is_reattempt: bool = False, is_default_gateway_attempt: bool = False - ) -> Optional[str]: - arp_entry = self.arp.get(ip_address) - - if arp_entry: - return arp_entry.mac_address - else: - if not is_reattempt: - self.send_arp_request(ip_address) - return self._get_arp_cache_mac_address( - ip_address=ip_address, is_reattempt=True, is_default_gateway_attempt=is_default_gateway_attempt - ) - else: - if self.software_manager.node.default_gateway: - if not is_default_gateway_attempt: - self.send_arp_request(self.software_manager.node.default_gateway) - return self._get_arp_cache_mac_address( - ip_address=self.software_manager.node.default_gateway, is_reattempt=True, is_default_gateway_attempt=True - ) - return None - - def get_arp_cache_mac_address(self, ip_address: IPv4Address) -> Optional[str]: - """ - Get the MAC address associated with an IP address. - - :param ip_address: The IP address to look up in the cache. - :return: The MAC address associated with the IP address, or None if not found. - """ - return self._get_arp_cache_mac_address(ip_address) - - def _get_arp_cache_nic( - self, ip_address: IPv4Address, is_reattempt: bool = False, is_default_gateway_attempt: bool = False - ) -> Optional[NIC]: - arp_entry = self.arp.get(ip_address) - - if arp_entry: - return self.software_manager.node.nics[arp_entry.nic_uuid] - else: - if not is_reattempt: - self.send_arp_request(ip_address) - return self._get_arp_cache_nic( - ip_address=ip_address, is_reattempt=True, is_default_gateway_attempt=is_default_gateway_attempt - ) - else: - if self.software_manager.node.default_gateway: - if not is_default_gateway_attempt: - self.send_arp_request(self.software_manager.node.default_gateway) - return self._get_arp_cache_nic( - ip_address=self.software_manager.node.default_gateway, is_reattempt=True, is_default_gateway_attempt=True - ) - return None - - def get_arp_cache_nic(self, ip_address: IPv4Address) -> Optional[NIC]: - """ - Get the NIC associated with an IP address. - - :param ip_address: The IP address to look up in the cache. - :return: The NIC associated with the IP address, or None if not found. - """ - return self._get_arp_cache_nic(ip_address) - - def _process_arp_request(self, arp_packet: ARPPacket, from_nic: NIC): - super()._process_arp_request(arp_packet, from_nic) - # Unmatched ARP Request - if arp_packet.target_ip_address != from_nic.ip_address: - self.sys_log.info( - f"Ignoring ARP request for {arp_packet.target_ip_address}. Current IP address is {from_nic.ip_address}" - ) - return - - # Matched ARP request - self.add_arp_cache_entry( - ip_address=arp_packet.sender_ip_address, mac_address=arp_packet.sender_mac_addr, nic=from_nic - ) - arp_packet = arp_packet.generate_reply(from_nic.mac_address) - self.send_arp_reply(arp_packet) diff --git a/src/primaite/simulator/system/services/arp/router_arp.py b/src/primaite/simulator/system/services/arp/router_arp.py index 3c32b108..d9108910 100644 --- a/src/primaite/simulator/system/services/arp/router_arp.py +++ b/src/primaite/simulator/system/services/arp/router_arp.py @@ -1,98 +1,78 @@ -# class RouterARPCache(ARPCache): +# from ipaddress import IPv4Address +# from typing import Optional, Any +# +# from primaite.simulator.network.hardware.nodes.network.router import RouterInterface, Router +# from primaite.simulator.network.protocols.arp import ARPPacket +# from primaite.simulator.network.transmission.data_link_layer import Frame +# from primaite.simulator.system.services.arp.arp import ARP +# +# +# class RouterARP(ARP): # """ # Inherits from ARPCache and adds router-specific ARP packet processing. # # :ivar SysLog sys_log: A system log for logging messages. # :ivar Router router: The router to which this ARP cache belongs. # """ +# router: Router # -# def __init__(self, sys_log: SysLog, router: Router): -# super().__init__(sys_log) -# self.router: Router = router +# def get_arp_cache_mac_address(self, ip_address: IPv4Address) -> Optional[str]: +# arp_entry = self.arp.get(ip_address) # -# def process_arp_packet( -# self, from_nic: NIC, frame: Frame, route_table: RouteTable, is_reattempt: bool = False -# ) -> None: -# """ -# Processes a received ARP (Address Resolution Protocol) packet in a router-specific way. +# if arp_entry: +# return arp_entry.mac_address +# return None # -# This method is responsible for handling both ARP requests and responses. It processes ARP packets received on a -# Network Interface Card (NIC) and performs actions based on whether the packet is a request or a reply. This -# includes updating the ARP cache, forwarding ARP replies, sending ARP requests for unknown destinations, and -# handling packet TTL (Time To Live). +# def get_arp_cache_network_interface(self, ip_address: IPv4Address) -> Optional[RouterInterface]: +# arp_entry = self.arp.get(ip_address) +# if arp_entry: +# return self.software_manager.node.network_interfaces[arp_entry.network_interface_uuid] +# return None # -# The method first checks if the ARP packet is a request or a reply. For ARP replies, it updates the ARP cache -# and forwards the reply if necessary. For ARP requests, it checks if the target IP matches one of the router's -# NICs and sends an ARP reply if so. If the destination is not directly connected, it consults the routing table -# to find the best route and reattempts ARP request processing if needed. -# -# :param from_nic: The NIC that received the ARP packet. -# :param frame: The frame containing the ARP packet. -# :param route_table: The routing table of the router. -# :param is_reattempt: Flag to indicate if this is a reattempt of processing the ARP packet, defaults to False. -# """ -# arp_packet = frame.arp -# -# # ARP Reply -# if not arp_packet.request: -# if arp_packet.target_ip_address == from_nic.ip_address: -# # reply to the Router specifically -# self.sys_log.info( -# f"Received ARP response for {arp_packet.sender_ip_address} " -# f"from {arp_packet.sender_mac_addr} via NIC {from_nic}" -# ) -# self.add_arp_cache_entry( -# ip_address=arp_packet.sender_ip_address, -# mac_address=arp_packet.sender_mac_addr, -# nic=from_nic, -# ) -# return -# -# # # Reply for a connected requested -# # nic = self.get_arp_cache_nic(arp_packet.target_ip_address) -# # if nic: -# # self.sys_log.info( -# # f"Forwarding arp reply for {arp_packet.target_ip_address}, from {arp_packet.sender_ip_address}" -# # ) -# # arp_packet.sender_mac_addr = nic.mac_address -# # frame.decrement_ttl() -# # if frame.ip and frame.ip.ttl < 1: -# # self.sys_log.info("Frame discarded as TTL limit reached") -# # return -# # nic.send_frame(frame) -# # return -# -# # ARP Request -# self.sys_log.info( -# f"Received ARP request for {arp_packet.target_ip_address} from " -# f"{arp_packet.sender_mac_addr}/{arp_packet.sender_ip_address} " -# ) -# # Matched ARP request +# def _process_arp_request(self, arp_packet: ARPPacket, from_network_interface: RouterInterface): +# super()._process_arp_request(arp_packet, from_network_interface) # self.add_arp_cache_entry( -# ip_address=arp_packet.sender_ip_address, mac_address=arp_packet.sender_mac_addr, nic=from_nic +# ip_address=arp_packet.sender_ip_address, mac_address=arp_packet.sender_mac_addr, +# network_interface=from_network_interface # ) # # # If the target IP matches one of the router's NICs -# for nic in self.nics.values(): -# if nic.enabled and nic.ip_address == arp_packet.target_ip_address: -# arp_reply = arp_packet.generate_reply(from_nic.mac_address) -# self.send_arp_reply(arp_reply, from_nic) +# for network_interface in self.network_interfaces.values(): +# if network_interface.enabled and network_interface.ip_address == arp_packet.target_ip_address: +# arp_reply = arp_packet.generate_reply(from_network_interface.mac_address) +# self.send_arp_reply(arp_reply) # return # -# # # Check Route Table -# # route = route_table.find_best_route(arp_packet.target_ip_address) -# # if route and route != self.router.route_table.default_route: -# # nic = self.get_arp_cache_nic(route.next_hop_ip_address) -# # -# # if not nic: -# # if not is_reattempt: -# # self.send_arp_request(route.next_hop_ip_address, ignore_networks=[frame.ip.src_ip_address]) -# # return self.process_arp_packet(from_nic, frame, route_table, is_reattempt=True) -# # else: -# # self.sys_log.info("Ignoring ARP request as destination unavailable/No ARP entry found") -# # return -# # else: -# # arp_reply = arp_packet.generate_reply(from_nic.mac_address) -# # self.send_arp_reply(arp_reply, from_nic) -# # return +# def _process_arp_reply(self, arp_packet: ARPPacket, from_network_interface: RouterInterface): +# if arp_packet.target_ip_address == from_network_interface.ip_address: +# super()._process_arp_reply(arp_packet, from_network_interface) # +# def receive(self, payload: Any, session_id: str, **kwargs) -> bool: +# """ +# Processes received data, handling ARP packets. +# +# :param payload: The payload received. +# :param session_id: The session ID associated with the received data. +# :param kwargs: Additional keyword arguments. +# :return: True if the payload was processed successfully, otherwise False. +# """ +# if not super().receive(payload, session_id, **kwargs): +# return False +# +# arp_packet: ARPPacket = payload +# from_network_interface: RouterInterface = kwargs["from_network_interface"] +# +# for network_interface in self.network_interfaces.values(): +# # ARP frame is for this Router +# if network_interface.ip_address == arp_packet.target_ip_address: +# if payload.request: +# self._process_arp_request(arp_packet=arp_packet, from_network_interface=from_network_interface) +# else: +# self._process_arp_reply(arp_packet=arp_packet, from_network_interface=from_network_interface) +# return True +# +# # ARP frame is not for this router, pass back down to Router to continue routing +# frame: Frame = kwargs["frame"] +# self.router.process_frame(frame=frame, from_network_interface=from_network_interface) +# +# return True diff --git a/src/primaite/simulator/system/services/icmp/icmp.py b/src/primaite/simulator/system/services/icmp/icmp.py index 93582350..be943c28 100644 --- a/src/primaite/simulator/system/services/icmp/icmp.py +++ b/src/primaite/simulator/system/services/icmp/icmp.py @@ -3,7 +3,6 @@ from ipaddress import IPv4Address from typing import Dict, Any, Union, Optional, Tuple from primaite import getLogger -from primaite.simulator.network.hardware.base import NIC from primaite.simulator.network.protocols.icmp import ICMPPacket, ICMPType from primaite.simulator.network.transmission.data_link_layer import Frame from primaite.simulator.network.transmission.network_layer import IPProtocol @@ -53,7 +52,7 @@ class ICMP(Service): return False if target_ip_address.is_loopback: self.sys_log.info("Pinging loopback address") - return any(nic.enabled for nic in self.nics.values()) + return any(network_interface.enabled for network_interface in self.network_interfaces.values()) self.sys_log.info(f"Pinging {target_ip_address}:", to_terminal=True) sequence, identifier = 0, None while sequence < pings: @@ -88,9 +87,9 @@ class ICMP(Service): :param pings: The number of pings to send. Defaults to 4. :return: A tuple containing the next sequence number and the identifier. """ - nic = self.software_manager.session_manager.resolve_outbound_nic(target_ip_address) + network_interface = self.software_manager.session_manager.resolve_outbound_network_interface(target_ip_address) - if not nic: + if not network_interface: self.sys_log.error( "Cannot send ICMP echo request as there is no outbound NIC to use. Try configuring the default gateway." ) @@ -118,9 +117,11 @@ class ICMP(Service): """ self.sys_log.info(f"Received echo request from {frame.ip.src_ip_address}") - nic = self.software_manager.session_manager.resolve_outbound_nic(frame.ip.src_ip_address) + network_interface = self.software_manager.session_manager.resolve_outbound_network_interface( + frame.ip.src_ip_address + ) - if not nic: + if not network_interface: self.sys_log.error( "Cannot send ICMP echo reply as there is no outbound NIC to use. Try configuring the default gateway." ) diff --git a/src/primaite/simulator/system/services/icmp/router_icmp.py b/src/primaite/simulator/system/services/icmp/router_icmp.py index 1def00c4..5dcba3f1 100644 --- a/src/primaite/simulator/system/services/icmp/router_icmp.py +++ b/src/primaite/simulator/system/services/icmp/router_icmp.py @@ -16,30 +16,30 @@ # super().__init__(sys_log, arp_cache) # self.router = router # -# def process_icmp(self, frame: Frame, from_nic: NIC, is_reattempt: bool = False): +# def process_icmp(self, frame: Frame, from_network_interface: NIC, is_reattempt: bool = False): # """ # Process incoming ICMP frames based on ICMP type. # # :param frame: The incoming frame to process. -# :param from_nic: The network interface where the frame is coming from. +# :param from_network_interface: The network interface where the frame is coming from. # :param is_reattempt: Flag to indicate if the process is a reattempt. # """ # if frame.icmp.icmp_type == ICMPType.ECHO_REQUEST: # # determine if request is for router interface or whether it needs to be routed # -# for nic in self.router.nics.values(): -# if nic.ip_address == frame.ip.dst_ip_address: -# if nic.enabled: +# for network_interface in self.router.network_interfaces.values(): +# if network_interface.ip_address == frame.ip.dst_ip_address: +# if network_interface.enabled: # # reply to the request # if not is_reattempt: # self.sys_log.info(f"Received echo request from {frame.ip.src_ip_address}") # target_mac_address = self.arp.get_arp_cache_mac_address(frame.ip.src_ip_address) -# src_nic = self.arp.get_arp_cache_nic(frame.ip.src_ip_address) +# src_nic = self.arp.get_arp_cache_network_interface(frame.ip.src_ip_address) # tcp_header = TCPHeader(src_port=Port.ARP, dst_port=Port.ARP) # # # Network Layer # ip_packet = IPPacket( -# src_ip_address=nic.ip_address, +# src_ip_address=network_interface.ip_address, # dst_ip_address=frame.ip.src_ip_address, # protocol=IPProtocol.ICMP, # ) @@ -67,12 +67,12 @@ # return # # # Route the frame -# self.router.process_frame(frame, from_nic) +# self.router.process_frame(frame, from_network_interface) # # elif frame.icmp.icmp_type == ICMPType.ECHO_REPLY: -# for nic in self.router.nics.values(): -# if nic.ip_address == frame.ip.dst_ip_address: -# if nic.enabled: +# for network_interface in self.router.network_interfaces.values(): +# if network_interface.ip_address == frame.ip.dst_ip_address: +# if network_interface.enabled: # time = frame.transmission_duration() # time_str = f"{time}ms" if time > 0 else "<1ms" # self.sys_log.info( @@ -87,4 +87,4 @@ # # return # # Route the frame -# self.router.process_frame(frame, from_nic) +# self.router.process_frame(frame, from_network_interface) diff --git a/src/primaite/utils/validators.py b/src/primaite/utils/validators.py new file mode 100644 index 00000000..13cff653 --- /dev/null +++ b/src/primaite/utils/validators.py @@ -0,0 +1,40 @@ +from ipaddress import IPv4Address +from typing import Any, Final + +from pydantic import ( + BeforeValidator, +) +from typing_extensions import Annotated + + +def ipv4_validator(v: Any) -> IPv4Address: + """ + Validate the input and ensure it can be converted to an IPv4Address instance. + + This function takes an input `v`, and if it's not already an instance of IPv4Address, it tries to convert it to one. + If the conversion is successful, the IPv4Address instance is returned. This is useful for ensuring that any input + data is strictly in the format of an IPv4 address. + + :param v: The input value that needs to be validated or converted to IPv4Address. + :return: An instance of IPv4Address. + :raises ValueError: If `v` is not a valid IPv4 address and cannot be converted to an instance of IPv4Address. + """ + if isinstance(v, IPv4Address): + return v + + return IPv4Address(v) + + +# Define a custom type IPV4Address using the typing_extensions.Annotated. +# Annotated is used to attach metadata to type hints. In this case, it's used to associate the ipv4_validator +# with the IPv4Address type, ensuring that any usage of IPV4Address undergoes validation before assignment. +IPV4Address: Final[Annotated] = Annotated[IPv4Address, BeforeValidator(ipv4_validator)] +""" +IPv4Address with with pre-validation and auto-conversion from str using ipv4_validator. + +This type is essentially an IPv4Address from the standard library's ipaddress module, +but with added validation logic. If you use this custom type, the ipv4_validator function +will automatically check and convert the input value to an instance of IPv4Address before +any Pydantic model uses it. This ensures that any field marked with this type is not just +an IPv4Address in form, but also valid according to the rules defined in ipv4_validator. +""" diff --git a/tests/assets/configs/bad_primaite_session.yaml b/tests/assets/configs/bad_primaite_session.yaml index eddb2211..6861f915 100644 --- a/tests/assets/configs/bad_primaite_session.yaml +++ b/tests/assets/configs/bad_primaite_session.yaml @@ -633,7 +633,7 @@ simulation: subnet_mask: 255.255.255.0 default_gateway: 192.168.1.1 dns_server: 192.168.1.10 - nics: + network_interfaces: 2: # unfortunately this number is currently meaningless, they're just added in order and take up the next available slot ip_address: 192.168.10.110 subnet_mask: 255.255.255.0 diff --git a/tests/assets/configs/eval_only_primaite_session.yaml b/tests/assets/configs/eval_only_primaite_session.yaml index 8c273110..eb469ab8 100644 --- a/tests/assets/configs/eval_only_primaite_session.yaml +++ b/tests/assets/configs/eval_only_primaite_session.yaml @@ -637,7 +637,7 @@ simulation: subnet_mask: 255.255.255.0 default_gateway: 192.168.1.1 dns_server: 192.168.1.10 - nics: + network_interfaces: 2: # unfortunately this number is currently meaningless, they're just added in order and take up the next available slot ip_address: 192.168.10.110 subnet_mask: 255.255.255.0 diff --git a/tests/assets/configs/multi_agent_session.yaml b/tests/assets/configs/multi_agent_session.yaml index dda645c3..5c8ebffd 100644 --- a/tests/assets/configs/multi_agent_session.yaml +++ b/tests/assets/configs/multi_agent_session.yaml @@ -1092,7 +1092,7 @@ simulation: subnet_mask: 255.255.255.0 default_gateway: 192.168.1.1 dns_server: 192.168.1.10 - nics: + network_interfaces: 2: # unfortunately this number is currently meaningless, they're just added in order and take up the next available slot ip_address: 192.168.10.110 subnet_mask: 255.255.255.0 diff --git a/tests/assets/configs/test_primaite_session.yaml b/tests/assets/configs/test_primaite_session.yaml index e86d7f96..d9ca195f 100644 --- a/tests/assets/configs/test_primaite_session.yaml +++ b/tests/assets/configs/test_primaite_session.yaml @@ -642,7 +642,7 @@ simulation: subnet_mask: 255.255.255.0 default_gateway: 192.168.1.1 dns_server: 192.168.1.10 - nics: + network_interfaces: 2: # unfortunately this number is currently meaningless, they're just added in order and take up the next available slot ip_address: 192.168.10.110 subnet_mask: 255.255.255.0 diff --git a/tests/assets/configs/train_only_primaite_session.yaml b/tests/assets/configs/train_only_primaite_session.yaml index e960c1e9..2f76625f 100644 --- a/tests/assets/configs/train_only_primaite_session.yaml +++ b/tests/assets/configs/train_only_primaite_session.yaml @@ -643,7 +643,7 @@ simulation: subnet_mask: 255.255.255.0 default_gateway: 192.168.1.1 dns_server: 192.168.1.10 - nics: + network_interfaces: 2: # unfortunately this number is currently meaningless, they're just added in order and take up the next available slot ip_address: 192.168.10.110 subnet_mask: 255.255.255.0 diff --git a/tests/conftest.py b/tests/conftest.py index 8e458878..0043cad1 100644 --- a/tests/conftest.py +++ b/tests/conftest.py @@ -6,17 +6,15 @@ import pytest import yaml from primaite import getLogger -from primaite.game.game import PrimaiteGame from primaite.session.session import PrimaiteSession # from primaite.environment.primaite_env import Primaite # from primaite.primaite_session import PrimaiteSession from primaite.simulator.network.container import Network -from primaite.simulator.network.hardware.node_operating_state import NodeOperatingState -from primaite.simulator.network.hardware.nodes.computer import Computer -from primaite.simulator.network.hardware.nodes.router import ACLAction, Router -from primaite.simulator.network.hardware.nodes.server import Server -from primaite.simulator.network.hardware.nodes.switch import Switch +from primaite.simulator.network.hardware.nodes.host.computer import Computer +from primaite.simulator.network.hardware.nodes.network.router import ACLAction, Router +from primaite.simulator.network.hardware.nodes.host.server import Server +from primaite.simulator.network.hardware.nodes.network.switch import Switch from primaite.simulator.network.networks import arcd_uc2_network from primaite.simulator.network.transmission.network_layer import IPProtocol from primaite.simulator.network.transmission.transport_layer import Port @@ -34,7 +32,7 @@ from primaite import PRIMAITE_PATHS # PrimAITE v3 stuff from primaite.simulator.file_system.file_system import FileSystem -from primaite.simulator.network.hardware.base import Link, Node +from primaite.simulator.network.hardware.base import Node class TestService(Service): @@ -157,7 +155,7 @@ def client_server() -> Tuple[Computer, Server]: server.power_on() # Connect Computer and Server - network.connect(computer.ethernet_port[1], server.ethernet_port[1]) + network.connect(computer.network_interface[1], server.network_interface[1]) # Should be linked assert next(iter(network.links.values())).is_up @@ -192,8 +190,8 @@ def client_switch_server() -> Tuple[Computer, Switch, Server]: switch = Switch(hostname="switch", start_up_duration=0) switch.power_on() - network.connect(endpoint_a=computer.ethernet_port[1], endpoint_b=switch.switch_ports[1]) - network.connect(endpoint_a=server.ethernet_port[1], endpoint_b=switch.switch_ports[2]) + network.connect(endpoint_a=computer.network_interface[1], endpoint_b=switch.switch_ports[1]) + network.connect(endpoint_a=server.network_interface[1], endpoint_b=switch.switch_ports[2]) assert all(link.is_up for link in network.links.values()) @@ -219,18 +217,33 @@ def example_network() -> Network: network = Network() # Router 1 - router_1 = Router(hostname="router_1", num_ports=5, operating_state=NodeOperatingState.ON) + router_1 = Router( + hostname="router_1", + start_up_duration=0 + ) + router_1.power_on() router_1.configure_port(port=1, ip_address="192.168.1.1", subnet_mask="255.255.255.0") router_1.configure_port(port=2, ip_address="192.168.10.1", subnet_mask="255.255.255.0") # Switch 1 - switch_1 = Switch(hostname="switch_1", num_ports=8, operating_state=NodeOperatingState.ON) - network.connect(endpoint_a=router_1.ethernet_ports[1], endpoint_b=switch_1.switch_ports[8]) + switch_1 = Switch( + hostname="switch_1", + num_ports=8, + start_up_duration=0 + ) + switch_1.power_on() + + network.connect(endpoint_a=router_1.network_interface[1], endpoint_b=switch_1.switch_ports[8]) router_1.enable_port(1) # Switch 2 - switch_2 = Switch(hostname="switch_2", num_ports=8, operating_state=NodeOperatingState.ON) - network.connect(endpoint_a=router_1.ethernet_ports[2], endpoint_b=switch_2.switch_ports[8]) + switch_2 = Switch( + hostname="switch_2", + num_ports=8, + start_up_duration=0 + ) + switch_2.power_on() + network.connect(endpoint_a=router_1.network_interface[2], endpoint_b=switch_2.switch_ports[8]) router_1.enable_port(2) # Client 1 @@ -239,9 +252,10 @@ def example_network() -> Network: ip_address="192.168.10.21", subnet_mask="255.255.255.0", default_gateway="192.168.10.1", - operating_state=NodeOperatingState.ON, + start_up_duration=0 ) - network.connect(endpoint_b=client_1.ethernet_port[1], endpoint_a=switch_2.switch_ports[1]) + client_1.power_on() + network.connect(endpoint_b=client_1.network_interface[1], endpoint_a=switch_2.switch_ports[1]) # Client 2 client_2 = Computer( @@ -249,32 +263,37 @@ def example_network() -> Network: ip_address="192.168.10.22", subnet_mask="255.255.255.0", default_gateway="192.168.10.1", - operating_state=NodeOperatingState.ON, + start_up_duration=0 ) - network.connect(endpoint_b=client_2.ethernet_port[1], endpoint_a=switch_2.switch_ports[2]) + client_2.power_on() + network.connect(endpoint_b=client_2.network_interface[1], endpoint_a=switch_2.switch_ports[2]) - # Domain Controller + # Server 1 server_1 = Server( hostname="server_1", ip_address="192.168.1.10", subnet_mask="255.255.255.0", default_gateway="192.168.1.1", - operating_state=NodeOperatingState.ON, + start_up_duration=0 ) + server_1.power_on() + network.connect(endpoint_b=server_1.network_interface[1], endpoint_a=switch_1.switch_ports[1]) - network.connect(endpoint_b=server_1.ethernet_port[1], endpoint_a=switch_1.switch_ports[1]) - - # Database Server + # DServer 2 server_2 = Server( hostname="server_2", ip_address="192.168.1.14", subnet_mask="255.255.255.0", default_gateway="192.168.1.1", - operating_state=NodeOperatingState.ON, + start_up_duration=0 ) - network.connect(endpoint_b=server_2.ethernet_port[1], endpoint_a=switch_1.switch_ports[2]) + server_2.power_on() + network.connect(endpoint_b=server_2.network_interface[1], endpoint_a=switch_1.switch_ports[2]) router_1.acl.add_rule(action=ACLAction.PERMIT, src_port=Port.ARP, dst_port=Port.ARP, position=22) router_1.acl.add_rule(action=ACLAction.PERMIT, protocol=IPProtocol.ICMP, position=23) + assert all(link.is_up for link in network.links.values()) + + return network diff --git a/tests/e2e_integration_tests/test_uc2_data_manipulation_scenario.py b/tests/e2e_integration_tests/test_uc2_data_manipulation_scenario.py index 992ed533..b68a887e 100644 --- a/tests/e2e_integration_tests/test_uc2_data_manipulation_scenario.py +++ b/tests/e2e_integration_tests/test_uc2_data_manipulation_scenario.py @@ -1,5 +1,5 @@ -from primaite.simulator.network.hardware.nodes.computer import Computer -from primaite.simulator.network.hardware.nodes.server import Server +from primaite.simulator.network.hardware.nodes.host.computer import Computer +from primaite.simulator.network.hardware.nodes.host.server import Server from primaite.simulator.system.applications.database_client import DatabaseClient from primaite.simulator.system.applications.red_applications.data_manipulation_bot import DataManipulationBot from primaite.simulator.system.services.database.database_service import DatabaseService diff --git a/tests/integration_tests/component_creation/test_action_integration.py b/tests/integration_tests/component_creation/test_action_integration.py index a2be923b..7d3945a6 100644 --- a/tests/integration_tests/component_creation/test_action_integration.py +++ b/tests/integration_tests/component_creation/test_action_integration.py @@ -1,9 +1,7 @@ -import pytest - from primaite.simulator.core import RequestType -from primaite.simulator.network.hardware.nodes.computer import Computer -from primaite.simulator.network.hardware.nodes.server import Server -from primaite.simulator.network.hardware.nodes.switch import Switch +from primaite.simulator.network.hardware.nodes.host.computer import Computer +from primaite.simulator.network.hardware.nodes.host.server import Server +from primaite.simulator.network.hardware.nodes.network.switch import Switch from primaite.simulator.sim_container import Simulation from primaite.simulator.system.services.database.database_service import DatabaseService @@ -27,9 +25,9 @@ def test_passing_actions_down(monkeypatch) -> None: downloads_folder = pc1.file_system.create_folder("downloads") pc1.file_system.create_file("bermuda_triangle.png", folder_name="downloads") - sim.network.connect(pc1.ethernet_port[1], s1.switch_ports[1]) - sim.network.connect(pc2.ethernet_port[1], s1.switch_ports[2]) - sim.network.connect(s1.switch_ports[3], srv.ethernet_port[1]) + sim.network.connect(pc1.network_interface[1], s1.switch_ports[1]) + sim.network.connect(pc2.network_interface[1], s1.switch_ports[2]) + sim.network.connect(s1.switch_ports[3], srv.network_interface[1]) # call this method to make sure no errors occur. sim._request_manager.get_request_types_recursively() diff --git a/tests/integration_tests/game_layer/test_observations.py b/tests/integration_tests/game_layer/test_observations.py index 07f3d25c..d1301759 100644 --- a/tests/integration_tests/game_layer/test_observations.py +++ b/tests/integration_tests/game_layer/test_observations.py @@ -1,7 +1,7 @@ from gymnasium import spaces from primaite.game.agent.observations import FileObservation -from primaite.simulator.network.hardware.nodes.computer import Computer +from primaite.simulator.network.hardware.nodes.host.computer import Computer from primaite.simulator.sim_container import Simulation diff --git a/tests/integration_tests/network/test_broadcast.py b/tests/integration_tests/network/test_broadcast.py index 5fb0917e..2dd9f7b8 100644 --- a/tests/integration_tests/network/test_broadcast.py +++ b/tests/integration_tests/network/test_broadcast.py @@ -4,9 +4,9 @@ from typing import Any, Dict, List, Tuple import pytest from primaite.simulator.network.container import Network -from primaite.simulator.network.hardware.nodes.computer import Computer -from primaite.simulator.network.hardware.nodes.server import Server -from primaite.simulator.network.hardware.nodes.switch import Switch +from primaite.simulator.network.hardware.nodes.host.computer import Computer +from primaite.simulator.network.hardware.nodes.host.server import Server +from primaite.simulator.network.hardware.nodes.network.switch import Switch from primaite.simulator.network.transmission.network_layer import IPProtocol from primaite.simulator.network.transmission.transport_layer import Port from primaite.simulator.system.applications.application import Application @@ -111,9 +111,9 @@ def broadcast_network() -> Network: switch_1 = Switch(hostname="switch_1", num_ports=6, start_up_duration=0) switch_1.power_on() - network.connect(endpoint_a=client_1.ethernet_port[1], endpoint_b=switch_1.switch_ports[1]) - network.connect(endpoint_a=client_2.ethernet_port[1], endpoint_b=switch_1.switch_ports[2]) - network.connect(endpoint_a=server_1.ethernet_port[1], endpoint_b=switch_1.switch_ports[3]) + network.connect(endpoint_a=client_1.network_interface[1], endpoint_b=switch_1.switch_ports[1]) + network.connect(endpoint_a=client_2.network_interface[1], endpoint_b=switch_1.switch_ports[2]) + network.connect(endpoint_a=server_1.network_interface[1], endpoint_b=switch_1.switch_ports[3]) return network diff --git a/tests/integration_tests/network/test_frame_transmission.py b/tests/integration_tests/network/test_frame_transmission.py index 527e4b4c..7beea643 100644 --- a/tests/integration_tests/network/test_frame_transmission.py +++ b/tests/integration_tests/network/test_frame_transmission.py @@ -1,7 +1,7 @@ from primaite.simulator.network.container import Network -from primaite.simulator.network.hardware.nodes.computer import Computer -from primaite.simulator.network.hardware.nodes.server import Server -from primaite.simulator.network.hardware.nodes.switch import Switch +from primaite.simulator.network.hardware.nodes.host.computer import Computer +from primaite.simulator.network.hardware.nodes.host.server import Server +from primaite.simulator.network.hardware.nodes.network.switch import Switch @@ -30,8 +30,8 @@ def test_node_to_node_ping(): switch_1 = Switch(hostname="switch_1", start_up_duration=0) switch_1.power_on() - network.connect(endpoint_a=client_1.ethernet_port[1], endpoint_b=switch_1.switch_ports[1]) - network.connect(endpoint_a=server_1.ethernet_port[1], endpoint_b=switch_1.switch_ports[2]) + network.connect(endpoint_a=client_1.network_interface[1], endpoint_b=switch_1.switch_ports[1]) + network.connect(endpoint_a=server_1.network_interface[1], endpoint_b=switch_1.switch_ports[2]) assert client_1.ping("192.168.1.11") diff --git a/tests/integration_tests/network/test_network_creation.py b/tests/integration_tests/network/test_network_creation.py index 0af44dbb..d9792675 100644 --- a/tests/integration_tests/network/test_network_creation.py +++ b/tests/integration_tests/network/test_network_creation.py @@ -1,10 +1,7 @@ -import pytest - from primaite.simulator.network.container import Network -from primaite.simulator.network.hardware.base import NIC, Node -from primaite.simulator.network.hardware.nodes.computer import Computer -from primaite.simulator.network.hardware.nodes.server import Server -from primaite.simulator.network.networks import client_server_routed +from primaite.simulator.network.hardware.base import Node +from primaite.simulator.network.hardware.nodes.host.computer import Computer +from primaite.simulator.network.hardware.nodes.host.server import Server def test_network(example_network): @@ -14,16 +11,16 @@ def test_network(example_network): server_1: Server = network.get_node_by_hostname("server_1") server_2: Server = network.get_node_by_hostname("server_2") - assert client_1.ping(client_2.ethernet_port[1].ip_address) - assert client_2.ping(client_1.ethernet_port[1].ip_address) + assert client_1.ping(client_2.network_interface[1].ip_address) + assert client_2.ping(client_1.network_interface[1].ip_address) - assert server_1.ping(server_2.ethernet_port[1].ip_address) - assert server_2.ping(server_1.ethernet_port[1].ip_address) + assert server_1.ping(server_2.network_interface[1].ip_address) + assert server_2.ping(server_1.network_interface[1].ip_address) - assert client_1.ping(server_1.ethernet_port[1].ip_address) - assert client_2.ping(server_1.ethernet_port[1].ip_address) - assert client_1.ping(server_2.ethernet_port[1].ip_address) - assert client_2.ping(server_2.ethernet_port[1].ip_address) + assert client_1.ping(server_1.network_interface[1].ip_address) + assert client_2.ping(server_1.network_interface[1].ip_address) + assert client_1.ping(server_2.network_interface[1].ip_address) + assert client_2.ping(server_2.network_interface[1].ip_address) def test_adding_removing_nodes(): @@ -71,7 +68,7 @@ def test_connecting_nodes(): net.add_node(n1) net.add_node(n2) - net.connect(n1.nics[n1_nic.uuid], n2.nics[n2_nic.uuid], bandwidth=30) + net.connect(n1.network_interfaces[n1_nic.uuid], n2.network_interfaces[n2_nic.uuid], bandwidth=30) assert len(net.links) == 1 link = list(net.links.values())[0] @@ -89,7 +86,7 @@ def test_connecting_node_to_itself(): net.add_node(node) - net.connect(node.nics[nic1.uuid], node.nics[nic2.uuid], bandwidth=30) + net.connect(node.network_interfaces[nic1.uuid], node.network_interfaces[nic2.uuid], bandwidth=30) assert node in net assert nic1._connected_link is None @@ -110,7 +107,7 @@ def test_disconnecting_nodes(): n2.connect_nic(n2_nic) net.add_node(n2) - net.connect(n1.nics[n1_nic.uuid], n2.nics[n2_nic.uuid], bandwidth=30) + net.connect(n1.network_interfaces[n1_nic.uuid], n2.network_interfaces[n2_nic.uuid], bandwidth=30) assert len(net.links) == 1 link = list(net.links.values())[0] diff --git a/tests/integration_tests/network/test_routing.py b/tests/integration_tests/network/test_routing.py index 042debca..02524eab 100644 --- a/tests/integration_tests/network/test_routing.py +++ b/tests/integration_tests/network/test_routing.py @@ -1,12 +1,10 @@ -from ipaddress import IPv4Address from typing import Tuple import pytest from primaite.simulator.network.container import Network -from primaite.simulator.network.hardware.base import Link, NIC, Node, NodeOperatingState -from primaite.simulator.network.hardware.nodes.computer import Computer -from primaite.simulator.network.hardware.nodes.router import ACLAction, Router +from primaite.simulator.network.hardware.nodes.host.computer import Computer +from primaite.simulator.network.hardware.nodes.network.router import ACLAction, Router from primaite.simulator.network.transmission.network_layer import IPProtocol from primaite.simulator.network.transmission.transport_layer import Port from primaite.simulator.system.services.ntp.ntp_client import NTPClient @@ -14,28 +12,37 @@ from primaite.simulator.system.services.ntp.ntp_server import NTPServer @pytest.fixture(scope="function") -def pc_a_pc_b_router_1() -> Tuple[Node, Node, Router]: - pc_a = Node(hostname="pc_a", default_gateway="192.168.0.1", operating_state=NodeOperatingState.ON) - nic_a = NIC(ip_address="192.168.0.10", subnet_mask="255.255.255.0") - pc_a.connect_nic(nic_a) +def pc_a_pc_b_router_1() -> Tuple[Computer, Computer, Router]: + network = Network() + pc_a = Computer( + hostname="pc_a", + ip_address="192.168.0.10", + subnet_mask="255.255.255.0", + default_gateway="192.168.0.1", + start_up_duration=0 + ) + pc_a.power_on() - pc_b = Node(hostname="pc_b", default_gateway="192.168.1.1", operating_state=NodeOperatingState.ON) - nic_b = NIC(ip_address="192.168.1.10", subnet_mask="255.255.255.0") - pc_b.connect_nic(nic_b) + pc_b = Computer( + hostname="pc_b", + ip_address="192.168.1.10", + subnet_mask="255.255.255.0", + default_gateway="192.168.1.1", + start_up_duration=0 + ) + pc_b.power_on() - router_1 = Router(hostname="router_1", operating_state=NodeOperatingState.ON) + router_1 = Router(hostname="router_1", start_up_duration=0) + router_1.power_on() router_1.configure_port(1, "192.168.0.1", "255.255.255.0") router_1.configure_port(2, "192.168.1.1", "255.255.255.0") - Link(endpoint_a=nic_a, endpoint_b=router_1.ethernet_ports[1]) - Link(endpoint_a=nic_b, endpoint_b=router_1.ethernet_ports[2]) + network.connect(endpoint_a=pc_a.network_interface[1], endpoint_b=router_1.network_interface[1]) + network.connect(endpoint_a=pc_b.network_interface[1], endpoint_b=router_1.network_interface[2]) router_1.enable_port(1) router_1.enable_port(2) - router_1.acl.add_rule(action=ACLAction.PERMIT, src_port=Port.ARP, dst_port=Port.ARP, position=22) - - router_1.acl.add_rule(action=ACLAction.PERMIT, protocol=IPProtocol.ICMP, position=23) return pc_a, pc_b, router_1 @@ -61,7 +68,7 @@ def multi_hop_network() -> Network: # Configure the connection between PC A and Router 1 port 2 router_1.configure_port(2, "192.168.0.1", "255.255.255.0") - network.connect(pc_a.ethernet_port[1], router_1.ethernet_ports[2]) + network.connect(pc_a.network_interface[1], router_1.network_interface[2]) router_1.enable_port(2) # Configure Router 1 ACLs @@ -86,17 +93,15 @@ def multi_hop_network() -> Network: # Configure the connection between PC B and Router 2 port 2 router_2.configure_port(2, "192.168.2.1", "255.255.255.0") - network.connect(pc_b.ethernet_port[1], router_2.ethernet_ports[2]) + network.connect(pc_b.network_interface[1], router_2.network_interface[2]) router_2.enable_port(2) # Configure Router 2 ACLs - router_2.acl.add_rule(action=ACLAction.PERMIT, src_port=Port.ARP, dst_port=Port.ARP, position=22) - router_2.acl.add_rule(action=ACLAction.PERMIT, protocol=IPProtocol.ICMP, position=23) # Configure the connection between Router 1 port 1 and Router 2 port 1 router_2.configure_port(1, "192.168.1.2", "255.255.255.252") router_1.configure_port(1, "192.168.1.1", "255.255.255.252") - network.connect(router_1.ethernet_ports[1], router_2.ethernet_ports[1]) + network.connect(router_1.network_interface[1], router_2.network_interface[1]) router_1.enable_port(1) router_2.enable_port(1) return network @@ -117,14 +122,14 @@ def test_ping_other_router_port(pc_a_pc_b_router_1): def test_host_on_other_subnet(pc_a_pc_b_router_1): pc_a, pc_b, router_1 = pc_a_pc_b_router_1 - assert pc_a.ping("192.168.1.10") + assert pc_a.ping(pc_b.network_interface[1].ip_address) def test_no_route_no_ping(multi_hop_network): pc_a = multi_hop_network.get_node_by_hostname("pc_a") pc_b = multi_hop_network.get_node_by_hostname("pc_b") - assert not pc_a.ping(pc_b.ethernet_port[1].ip_address) + assert not pc_a.ping(pc_b.network_interface[1].ip_address) def test_with_routes_can_ping(multi_hop_network): @@ -144,7 +149,7 @@ def test_with_routes_can_ping(multi_hop_network): address="192.168.0.2", subnet_mask="255.255.255.0", next_hop_ip_address="192.168.1.1" ) - assert pc_a.ping(pc_b.ethernet_port[1].ip_address) + assert pc_a.ping(pc_b.network_interface[1].ip_address) def test_routing_services(multi_hop_network): @@ -159,7 +164,7 @@ def test_routing_services(multi_hop_network): pc_b.software_manager.install(NTPServer) pc_b.software_manager.software["NTPServer"].start() - ntp_client.configure(ntp_server_ip_address=pc_b.ethernet_port[1].ip_address) + ntp_client.configure(ntp_server_ip_address=pc_b.network_interface[1].ip_address) router_1: Router = multi_hop_network.get_node_by_hostname("router_1") # noqa router_2: Router = multi_hop_network.get_node_by_hostname("router_2") # noqa diff --git a/tests/integration_tests/network/test_switched_network.py b/tests/integration_tests/network/test_switched_network.py index 8a2bd0a2..98f36df6 100644 --- a/tests/integration_tests/network/test_switched_network.py +++ b/tests/integration_tests/network/test_switched_network.py @@ -1,12 +1,5 @@ -from primaite.simulator.network.container import Network -from primaite.simulator.network.hardware.base import Link, NodeOperatingState -from primaite.simulator.network.hardware.nodes.computer import Computer -from primaite.simulator.network.hardware.nodes.server import Server -from primaite.simulator.network.hardware.nodes.switch import Switch - - def test_switched_network(client_switch_server): """Tests a node can ping another node via the switch.""" computer, switch, server = client_switch_server - assert computer.ping(server.ethernet_port[1].ip_address) + assert computer.ping(server.network_interface[1].ip_address) diff --git a/tests/integration_tests/system/red_applications/test_dos_bot_and_server.py b/tests/integration_tests/system/red_applications/test_dos_bot_and_server.py index fb768127..ecf2c5ae 100644 --- a/tests/integration_tests/system/red_applications/test_dos_bot_and_server.py +++ b/tests/integration_tests/system/red_applications/test_dos_bot_and_server.py @@ -4,9 +4,9 @@ from typing import Tuple import pytest from primaite.simulator.network.container import Network -from primaite.simulator.network.hardware.nodes.computer import Computer -from primaite.simulator.network.hardware.nodes.router import ACLAction, Router -from primaite.simulator.network.hardware.nodes.server import Server +from primaite.simulator.network.hardware.nodes.host.computer import Computer +from primaite.simulator.network.hardware.nodes.network.router import ACLAction, Router +from primaite.simulator.network.hardware.nodes.host.server import Server from primaite.simulator.network.transmission.transport_layer import Port from primaite.simulator.system.applications.application import ApplicationOperatingState from primaite.simulator.system.applications.database_client import DatabaseClient @@ -24,7 +24,7 @@ def dos_bot_and_db_server(client_server) -> Tuple[DoSBot, Computer, DatabaseServ dos_bot: DoSBot = computer.software_manager.software.get("DoSBot") dos_bot.configure( - target_ip_address=IPv4Address(server.nics.get(next(iter(server.nics))).ip_address), + target_ip_address=IPv4Address(server.network_interfaces.get(next(iter(server.network_interfaces))).ip_address), target_port=Port.POSTGRES_SERVER, ) @@ -54,7 +54,7 @@ def dos_bot_db_server_green_client(example_network) -> Network: dos_bot: DoSBot = client_1.software_manager.software.get("DoSBot") dos_bot.configure( - target_ip_address=IPv4Address(server.nics.get(next(iter(server.nics))).ip_address), + target_ip_address=IPv4Address(server.network_interfaces.get(next(iter(server.network_interfaces))).ip_address), target_port=Port.POSTGRES_SERVER, ) diff --git a/tests/integration_tests/system/test_application_on_node.py b/tests/integration_tests/system/test_application_on_node.py index 60497f22..143b2b04 100644 --- a/tests/integration_tests/system/test_application_on_node.py +++ b/tests/integration_tests/system/test_application_on_node.py @@ -3,7 +3,7 @@ from typing import Tuple import pytest from primaite.simulator.network.hardware.node_operating_state import NodeOperatingState -from primaite.simulator.network.hardware.nodes.computer import Computer +from primaite.simulator.network.hardware.nodes.host.computer import Computer from primaite.simulator.system.applications.application import Application, ApplicationOperatingState diff --git a/tests/integration_tests/system/test_database_on_node.py b/tests/integration_tests/system/test_database_on_node.py index daa125ca..df47d8ad 100644 --- a/tests/integration_tests/system/test_database_on_node.py +++ b/tests/integration_tests/system/test_database_on_node.py @@ -4,7 +4,7 @@ from typing import Tuple import pytest from primaite.simulator.network.hardware.base import Link, NIC, Node, NodeOperatingState -from primaite.simulator.network.hardware.nodes.server import Server +from primaite.simulator.network.hardware.nodes.host.server import Server from primaite.simulator.system.applications.database_client import DatabaseClient from primaite.simulator.system.services.database.database_service import DatabaseService from primaite.simulator.system.services.ftp.ftp_server import FTPServer diff --git a/tests/integration_tests/system/test_dns_client_server.py b/tests/integration_tests/system/test_dns_client_server.py index a54bf23f..18988043 100644 --- a/tests/integration_tests/system/test_dns_client_server.py +++ b/tests/integration_tests/system/test_dns_client_server.py @@ -4,8 +4,8 @@ from typing import Tuple import pytest from primaite.simulator.network.hardware.node_operating_state import NodeOperatingState -from primaite.simulator.network.hardware.nodes.computer import Computer -from primaite.simulator.network.hardware.nodes.server import Server +from primaite.simulator.network.hardware.nodes.host.computer import Computer +from primaite.simulator.network.hardware.nodes.host.server import Server from primaite.simulator.system.services.dns.dns_client import DNSClient from primaite.simulator.system.services.dns.dns_server import DNSServer from primaite.simulator.system.services.service import ServiceOperatingState @@ -20,7 +20,7 @@ def dns_client_and_dns_server(client_server) -> Tuple[DNSClient, Computer, DNSSe dns_client: DNSClient = computer.software_manager.software.get("DNSClient") dns_client.start() # set server as DNS Server - dns_client.dns_server = IPv4Address(server.nics.get(next(iter(server.nics))).ip_address) + dns_client.dns_server = IPv4Address(server.network_interfaces.get(next(iter(server.network_interfaces))).ip_address) # Install DNS Server on server server.software_manager.install(DNSServer) @@ -28,7 +28,7 @@ def dns_client_and_dns_server(client_server) -> Tuple[DNSClient, Computer, DNSSe dns_server.start() # register arcd.com as a domain dns_server.dns_register( - domain_name="arcd.com", domain_ip_address=IPv4Address(server.nics.get(next(iter(server.nics))).ip_address) + domain_name="arcd.com", domain_ip_address=IPv4Address(server.network_interfaces.get(next(iter(server.network_interfaces))).ip_address) ) return dns_client, computer, dns_server, server diff --git a/tests/integration_tests/system/test_ftp_client_server.py b/tests/integration_tests/system/test_ftp_client_server.py index 1a6a8f41..6b46e302 100644 --- a/tests/integration_tests/system/test_ftp_client_server.py +++ b/tests/integration_tests/system/test_ftp_client_server.py @@ -1,10 +1,9 @@ -from ipaddress import IPv4Address from typing import Tuple import pytest -from primaite.simulator.network.hardware.nodes.computer import Computer -from primaite.simulator.network.hardware.nodes.server import Server +from primaite.simulator.network.hardware.nodes.host.computer import Computer +from primaite.simulator.network.hardware.nodes.host.server import Server from primaite.simulator.system.services.ftp.ftp_client import FTPClient from primaite.simulator.system.services.ftp.ftp_server import FTPServer from primaite.simulator.system.services.service import ServiceOperatingState @@ -44,7 +43,7 @@ def test_ftp_client_store_file_in_server(ftp_client_and_ftp_server): src_file_name="test_file.txt", dest_folder_name="client_1_backup", dest_file_name="test_file.txt", - dest_ip_address=server.nics.get(next(iter(server.nics))).ip_address, + dest_ip_address=server.network_interfaces.get(next(iter(server.network_interfaces))).ip_address, ) assert ftp_server.file_system.get_file(folder_name="client_1_backup", file_name="test_file.txt") @@ -67,7 +66,7 @@ def test_ftp_client_retrieve_file_from_server(ftp_client_and_ftp_server): src_file_name="test_file.txt", dest_folder_name="downloads", dest_file_name="test_file.txt", - dest_ip_address=server.nics.get(next(iter(server.nics))).ip_address, + dest_ip_address=server.network_interfaces.get(next(iter(server.network_interfaces))).ip_address, ) # client should have retrieved the file @@ -98,7 +97,7 @@ def test_ftp_client_tries_to_connect_to_offline_server(ftp_client_and_ftp_server src_file_name="test_file.txt", dest_folder_name="downloads", dest_file_name="test_file.txt", - dest_ip_address=server.nics.get(next(iter(server.nics))).ip_address, + dest_ip_address=server.network_interfaces.get(next(iter(server.network_interfaces))).ip_address, ) is False ) diff --git a/tests/integration_tests/system/test_ntp_client_server.py b/tests/integration_tests/system/test_ntp_client_server.py index b7839479..92133d50 100644 --- a/tests/integration_tests/system/test_ntp_client_server.py +++ b/tests/integration_tests/system/test_ntp_client_server.py @@ -4,10 +4,8 @@ from typing import Tuple import pytest -from primaite.simulator.network.container import Network -from primaite.simulator.network.hardware.nodes.computer import Computer -from primaite.simulator.network.hardware.nodes.server import Server -from primaite.simulator.network.protocols.ntp import NTPPacket +from primaite.simulator.network.hardware.nodes.host.computer import Computer +from primaite.simulator.network.hardware.nodes.host.server import Server from primaite.simulator.system.services.ntp.ntp_client import NTPClient from primaite.simulator.system.services.ntp.ntp_server import NTPServer from primaite.simulator.system.services.service import ServiceOperatingState diff --git a/tests/integration_tests/system/test_service_on_node.py b/tests/integration_tests/system/test_service_on_node.py index 9b0084bd..12fed578 100644 --- a/tests/integration_tests/system/test_service_on_node.py +++ b/tests/integration_tests/system/test_service_on_node.py @@ -3,8 +3,8 @@ from typing import Tuple import pytest from primaite.simulator.network.hardware.node_operating_state import NodeOperatingState -from primaite.simulator.network.hardware.nodes.computer import Computer -from primaite.simulator.network.hardware.nodes.server import Server +from primaite.simulator.network.hardware.nodes.host.computer import Computer +from primaite.simulator.network.hardware.nodes.host.server import Server from primaite.simulator.system.services.service import Service, ServiceOperatingState diff --git a/tests/integration_tests/system/test_web_client_server.py b/tests/integration_tests/system/test_web_client_server.py index b3d2e891..c809f954 100644 --- a/tests/integration_tests/system/test_web_client_server.py +++ b/tests/integration_tests/system/test_web_client_server.py @@ -3,8 +3,8 @@ from typing import Tuple import pytest from primaite.simulator.network.hardware.node_operating_state import NodeOperatingState -from primaite.simulator.network.hardware.nodes.computer import Computer -from primaite.simulator.network.hardware.nodes.server import Server +from primaite.simulator.network.hardware.nodes.host.computer import Computer +from primaite.simulator.network.hardware.nodes.host.server import Server from primaite.simulator.network.protocols.http import HttpStatusCode from primaite.simulator.system.applications.application import ApplicationOperatingState from primaite.simulator.system.applications.web_browser import WebBrowser @@ -26,7 +26,7 @@ def web_client_and_web_server(client_server) -> Tuple[WebBrowser, Computer, WebS computer.software_manager.install(DNSClient) dns_client: DNSClient = computer.software_manager.software.get("DNSClient") # set dns server - dns_client.dns_server = server.nics[next(iter(server.nics))].ip_address + dns_client.dns_server = server.network_interfaces[next(iter(server.network_interfaces))].ip_address # Install Web Server service on server server.software_manager.install(WebServer) @@ -37,7 +37,7 @@ def web_client_and_web_server(client_server) -> Tuple[WebBrowser, Computer, WebS server.software_manager.install(DNSServer) dns_server: DNSServer = server.software_manager.software.get("DNSServer") # register arcd.com to DNS - dns_server.dns_register(domain_name="arcd.com", domain_ip_address=server.nics[next(iter(server.nics))].ip_address) + dns_server.dns_register(domain_name="arcd.com", domain_ip_address=server.network_interfaces[next(iter(server.network_interfaces))].ip_address) return web_browser, computer, web_server_service, server @@ -46,7 +46,7 @@ def test_web_page_get_users_page_request_with_domain_name(web_client_and_web_ser """Test to see if the client can handle requests with domain names""" web_browser_app, computer, web_server_service, server = web_client_and_web_server - web_server_ip = server.nics.get(next(iter(server.nics))).ip_address + web_server_ip = server.network_interfaces.get(next(iter(server.network_interfaces))).ip_address web_browser_app.target_url = f"http://arcd.com/" assert web_browser_app.operating_state == ApplicationOperatingState.RUNNING @@ -61,7 +61,7 @@ def test_web_page_get_users_page_request_with_ip_address(web_client_and_web_serv """Test to see if the client can handle requests that use ip_address.""" web_browser_app, computer, web_server_service, server = web_client_and_web_server - web_server_ip = server.nics.get(next(iter(server.nics))).ip_address + web_server_ip = server.network_interfaces.get(next(iter(server.network_interfaces))).ip_address web_browser_app.target_url = f"http://{web_server_ip}/" assert web_browser_app.operating_state == ApplicationOperatingState.RUNNING @@ -76,7 +76,7 @@ def test_web_page_request_from_shut_down_server(web_client_and_web_server): """Test to see that the web server does not respond when the server is off.""" web_browser_app, computer, web_server_service, server = web_client_and_web_server - web_server_ip = server.nics.get(next(iter(server.nics))).ip_address + web_server_ip = server.network_interfaces.get(next(iter(server.network_interfaces))).ip_address web_browser_app.target_url = f"http://arcd.com/" assert web_browser_app.operating_state == ApplicationOperatingState.RUNNING diff --git a/tests/integration_tests/system/test_web_client_server_and_database.py b/tests/integration_tests/system/test_web_client_server_and_database.py index a4ef3d52..efb29f41 100644 --- a/tests/integration_tests/system/test_web_client_server_and_database.py +++ b/tests/integration_tests/system/test_web_client_server_and_database.py @@ -4,10 +4,9 @@ from typing import Tuple import pytest from primaite.simulator.network.hardware.base import Link -from primaite.simulator.network.hardware.node_operating_state import NodeOperatingState -from primaite.simulator.network.hardware.nodes.computer import Computer -from primaite.simulator.network.hardware.nodes.router import ACLAction, Router -from primaite.simulator.network.hardware.nodes.server import Server +from primaite.simulator.network.hardware.nodes.host.computer import Computer +from primaite.simulator.network.hardware.nodes.network.router import ACLAction, Router +from primaite.simulator.network.hardware.nodes.host.server import Server from primaite.simulator.network.transmission.transport_layer import Port from primaite.simulator.system.applications.database_client import DatabaseClient from primaite.simulator.system.applications.web_browser import WebBrowser @@ -44,9 +43,9 @@ def web_client_web_server_database(example_network) -> Tuple[Computer, Server, S db_server = example_network.get_node_by_hostname("server_2") # Get the NICs - computer_nic = computer.nics[next(iter(computer.nics))] - server_nic = web_server.nics[next(iter(web_server.nics))] - db_server_nic = db_server.nics[next(iter(db_server.nics))] + computer_nic = computer.network_interfaces[next(iter(computer.network_interfaces))] + server_nic = web_server.network_interfaces[next(iter(web_server.network_interfaces))] + db_server_nic = db_server.network_interfaces[next(iter(db_server.network_interfaces))] # Connect Computer and Server link_computer_server = Link(endpoint_a=computer_nic, endpoint_b=server_nic) @@ -74,7 +73,7 @@ def web_client_web_server_database(example_network) -> Tuple[Computer, Server, S computer.software_manager.install(DNSClient) dns_client: DNSClient = computer.software_manager.software.get("DNSClient") # set dns server - dns_client.dns_server = web_server.nics[next(iter(web_server.nics))].ip_address + dns_client.dns_server = web_server.network_interfaces[next(iter(web_server.network_interfaces))].ip_address # Install Web Server service on web server web_server.software_manager.install(WebServer) @@ -86,7 +85,7 @@ def web_client_web_server_database(example_network) -> Tuple[Computer, Server, S dns_server: DNSServer = web_server.software_manager.software.get("DNSServer") # register arcd.com to DNS dns_server.dns_register( - domain_name="arcd.com", domain_ip_address=web_server.nics[next(iter(web_server.nics))].ip_address + domain_name="arcd.com", domain_ip_address=web_server.network_interfaces[next(iter(web_server.network_interfaces))].ip_address ) # Install DatabaseClient service on web server diff --git a/tests/unit_tests/_primaite/_simulator/_network/_hardware/nodes/test_acl.py b/tests/unit_tests/_primaite/_simulator/_network/_hardware/nodes/test_acl.py index 554cba38..428f370c 100644 --- a/tests/unit_tests/_primaite/_simulator/_network/_hardware/nodes/test_acl.py +++ b/tests/unit_tests/_primaite/_simulator/_network/_hardware/nodes/test_acl.py @@ -1,6 +1,6 @@ from ipaddress import IPv4Address -from primaite.simulator.network.hardware.nodes.router import ACLAction, Router +from primaite.simulator.network.hardware.nodes.network.router import ACLAction, Router from primaite.simulator.network.transmission.network_layer import IPProtocol from primaite.simulator.network.transmission.transport_layer import Port diff --git a/tests/unit_tests/_primaite/_simulator/_network/_hardware/nodes/test_switch.py b/tests/unit_tests/_primaite/_simulator/_network/_hardware/nodes/test_switch.py index d2d0e52c..a0f6619c 100644 --- a/tests/unit_tests/_primaite/_simulator/_network/_hardware/nodes/test_switch.py +++ b/tests/unit_tests/_primaite/_simulator/_network/_hardware/nodes/test_switch.py @@ -1,7 +1,7 @@ import pytest from primaite.simulator.network.hardware.node_operating_state import NodeOperatingState -from primaite.simulator.network.hardware.nodes.switch import Switch +from primaite.simulator.network.hardware.nodes.network.switch import Switch @pytest.fixture(scope="function") diff --git a/tests/unit_tests/_primaite/_simulator/_network/_hardware/test_nic.py b/tests/unit_tests/_primaite/_simulator/_network/_hardware/test_nic.py index 1bf2cdbb..90b54b78 100644 --- a/tests/unit_tests/_primaite/_simulator/_network/_hardware/test_nic.py +++ b/tests/unit_tests/_primaite/_simulator/_network/_hardware/test_nic.py @@ -29,21 +29,21 @@ def test_invalid_oui_mac_address(): def test_nic_ip_address_type_conversion(): """Tests NIC IP and gateway address is converted to IPv4Address is originally a string.""" - nic = NIC( + network_interface = NIC( ip_address="192.168.1.2", subnet_mask="255.255.255.0", ) - assert isinstance(nic.ip_address, IPv4Address) + assert isinstance(network_interface.ip_address, IPv4Address) def test_nic_deserialize(): """Tests NIC serialization and deserialization.""" - nic = NIC( + network_interface = NIC( ip_address="192.168.1.2", subnet_mask="255.255.255.0", ) - nic_json = nic.model_dump_json() + nic_json = network_interface.model_dump_json() deserialized_nic = NIC.model_validate_json(nic_json) assert nic_json == deserialized_nic.model_dump_json() diff --git a/tests/unit_tests/_primaite/_simulator/_network/test_container.py b/tests/unit_tests/_primaite/_simulator/_network/test_container.py index 7667a59f..b56253fb 100644 --- a/tests/unit_tests/_primaite/_simulator/_network/test_container.py +++ b/tests/unit_tests/_primaite/_simulator/_network/test_container.py @@ -5,9 +5,7 @@ import pytest from primaite.simulator.network.container import Network from primaite.simulator.network.hardware.base import Link, Node from primaite.simulator.network.hardware.node_operating_state import NodeOperatingState -from primaite.simulator.network.hardware.nodes.computer import Computer -from primaite.simulator.system.applications.database_client import DatabaseClient -from primaite.simulator.system.services.database.database_service import DatabaseService +from primaite.simulator.network.hardware.nodes.host.computer import Computer def filter_keys_nested_item(data, keys): diff --git a/tests/unit_tests/_primaite/_simulator/_system/_applications/_red_applications/test_dos_bot.py b/tests/unit_tests/_primaite/_simulator/_system/_applications/_red_applications/test_dos_bot.py index 71489171..eafa6359 100644 --- a/tests/unit_tests/_primaite/_simulator/_system/_applications/_red_applications/test_dos_bot.py +++ b/tests/unit_tests/_primaite/_simulator/_system/_applications/_red_applications/test_dos_bot.py @@ -3,7 +3,7 @@ from ipaddress import IPv4Address import pytest from primaite.simulator.network.hardware.node_operating_state import NodeOperatingState -from primaite.simulator.network.hardware.nodes.computer import Computer +from primaite.simulator.network.hardware.nodes.host.computer import Computer from primaite.simulator.network.transmission.transport_layer import Port from primaite.simulator.system.applications.application import ApplicationOperatingState from primaite.simulator.system.applications.red_applications.dos_bot import DoSAttackStage, DoSBot diff --git a/tests/unit_tests/_primaite/_simulator/_system/_applications/test_database_client.py b/tests/unit_tests/_primaite/_simulator/_system/_applications/test_database_client.py index 204b356f..6fec4555 100644 --- a/tests/unit_tests/_primaite/_simulator/_system/_applications/test_database_client.py +++ b/tests/unit_tests/_primaite/_simulator/_system/_applications/test_database_client.py @@ -1,11 +1,11 @@ from ipaddress import IPv4Address -from typing import Tuple, Union +from typing import Tuple from uuid import uuid4 import pytest from primaite.simulator.network.hardware.node_operating_state import NodeOperatingState -from primaite.simulator.network.hardware.nodes.computer import Computer +from primaite.simulator.network.hardware.nodes.host.computer import Computer from primaite.simulator.system.applications.application import ApplicationOperatingState from primaite.simulator.system.applications.database_client import DatabaseClient diff --git a/tests/unit_tests/_primaite/_simulator/_system/_applications/test_web_browser.py b/tests/unit_tests/_primaite/_simulator/_system/_applications/test_web_browser.py index dc8f7419..9dc7a52e 100644 --- a/tests/unit_tests/_primaite/_simulator/_system/_applications/test_web_browser.py +++ b/tests/unit_tests/_primaite/_simulator/_system/_applications/test_web_browser.py @@ -1,9 +1,7 @@ -from typing import Tuple - import pytest from primaite.simulator.network.hardware.node_operating_state import NodeOperatingState -from primaite.simulator.network.hardware.nodes.computer import Computer +from primaite.simulator.network.hardware.nodes.host.computer import Computer from primaite.simulator.network.protocols.http import HttpResponsePacket, HttpStatusCode from primaite.simulator.network.transmission.network_layer import IPProtocol from primaite.simulator.network.transmission.transport_layer import Port diff --git a/tests/unit_tests/_primaite/_simulator/_system/_services/test_dns_client.py b/tests/unit_tests/_primaite/_simulator/_system/_services/test_dns_client.py index 2bcb512d..97c1cf4e 100644 --- a/tests/unit_tests/_primaite/_simulator/_system/_services/test_dns_client.py +++ b/tests/unit_tests/_primaite/_simulator/_system/_services/test_dns_client.py @@ -4,7 +4,7 @@ import pytest from primaite.simulator.network.hardware.base import Node from primaite.simulator.network.hardware.node_operating_state import NodeOperatingState -from primaite.simulator.network.hardware.nodes.computer import Computer +from primaite.simulator.network.hardware.nodes.host.computer import Computer from primaite.simulator.network.protocols.dns import DNSPacket, DNSReply, DNSRequest from primaite.simulator.network.transmission.network_layer import IPProtocol from primaite.simulator.network.transmission.transport_layer import Port diff --git a/tests/unit_tests/_primaite/_simulator/_system/_services/test_dns_server.py b/tests/unit_tests/_primaite/_simulator/_system/_services/test_dns_server.py index eb042c92..5f5fdcba 100644 --- a/tests/unit_tests/_primaite/_simulator/_system/_services/test_dns_server.py +++ b/tests/unit_tests/_primaite/_simulator/_system/_services/test_dns_server.py @@ -4,7 +4,7 @@ import pytest from primaite.simulator.network.hardware.base import Node from primaite.simulator.network.hardware.node_operating_state import NodeOperatingState -from primaite.simulator.network.hardware.nodes.server import Server +from primaite.simulator.network.hardware.nodes.host.server import Server from primaite.simulator.network.protocols.dns import DNSPacket, DNSRequest from primaite.simulator.network.transmission.network_layer import IPProtocol from primaite.simulator.network.transmission.transport_layer import Port diff --git a/tests/unit_tests/_primaite/_simulator/_system/_services/test_ftp_client.py b/tests/unit_tests/_primaite/_simulator/_system/_services/test_ftp_client.py index 941a465e..5d900fff 100644 --- a/tests/unit_tests/_primaite/_simulator/_system/_services/test_ftp_client.py +++ b/tests/unit_tests/_primaite/_simulator/_system/_services/test_ftp_client.py @@ -5,7 +5,7 @@ import pytest from primaite.simulator.file_system.file_system_item_abc import FileSystemItemHealthStatus from primaite.simulator.network.hardware.base import Node from primaite.simulator.network.hardware.node_operating_state import NodeOperatingState -from primaite.simulator.network.hardware.nodes.computer import Computer +from primaite.simulator.network.hardware.nodes.host.computer import Computer from primaite.simulator.network.protocols.ftp import FTPCommand, FTPPacket, FTPStatusCode from primaite.simulator.network.transmission.network_layer import IPProtocol from primaite.simulator.network.transmission.transport_layer import Port diff --git a/tests/unit_tests/_primaite/_simulator/_system/_services/test_ftp_server.py b/tests/unit_tests/_primaite/_simulator/_system/_services/test_ftp_server.py index 137e74d0..a4fcdff7 100644 --- a/tests/unit_tests/_primaite/_simulator/_system/_services/test_ftp_server.py +++ b/tests/unit_tests/_primaite/_simulator/_system/_services/test_ftp_server.py @@ -3,7 +3,7 @@ import pytest from primaite.simulator.file_system.file_system_item_abc import FileSystemItemHealthStatus from primaite.simulator.network.hardware.base import Node from primaite.simulator.network.hardware.node_operating_state import NodeOperatingState -from primaite.simulator.network.hardware.nodes.server import Server +from primaite.simulator.network.hardware.nodes.host.server import Server from primaite.simulator.network.protocols.ftp import FTPCommand, FTPPacket, FTPStatusCode from primaite.simulator.network.transmission.network_layer import IPProtocol from primaite.simulator.network.transmission.transport_layer import Port diff --git a/tests/unit_tests/_primaite/_simulator/_system/_services/test_web_server.py b/tests/unit_tests/_primaite/_simulator/_system/_services/test_web_server.py index 64277356..2e645435 100644 --- a/tests/unit_tests/_primaite/_simulator/_system/_services/test_web_server.py +++ b/tests/unit_tests/_primaite/_simulator/_system/_services/test_web_server.py @@ -1,7 +1,7 @@ import pytest from primaite.simulator.network.hardware.node_operating_state import NodeOperatingState -from primaite.simulator.network.hardware.nodes.server import Server +from primaite.simulator.network.hardware.nodes.host.server import Server from primaite.simulator.network.protocols.http import ( HttpRequestMethod, HttpRequestPacket, From b7ff520d557f05dcaabb378449d3760a7e87a6c6 Mon Sep 17 00:00:00 2001 From: Marek Wolan Date: Tue, 6 Feb 2024 18:58:50 +0000 Subject: [PATCH 08/39] make task fail if tests fail --- .azure/azure-ci-build-pipeline.yaml | 1 + 1 file changed, 1 insertion(+) diff --git a/.azure/azure-ci-build-pipeline.yaml b/.azure/azure-ci-build-pipeline.yaml index f962a628..dcfbde0e 100644 --- a/.azure/azure-ci-build-pipeline.yaml +++ b/.azure/azure-ci-build-pipeline.yaml @@ -113,6 +113,7 @@ stages: testRunner: JUnit testResultsFiles: 'junit/**.xml' testRunTitle: 'Publish test results' + failTaskOnFailedTests: true - publish: $(System.DefaultWorkingDirectory)/htmlcov/ # publish the html report - so we can debug the coverage if needed From f21ee857a7b416f66e1ffdc84c9e8f032db7b9dd Mon Sep 17 00:00:00 2001 From: Czar Echavez Date: Wed, 7 Feb 2024 18:09:54 +0000 Subject: [PATCH 09/39] #2258: setting up test that verifies game config parsing --- src/primaite/game/game.py | 41 ++++--- .../configs/basic_switched_network.yaml | 114 ++++++++++++++++++ tests/integration_tests/game_configuration.py | 77 ++++++++++++ 3 files changed, 213 insertions(+), 19 deletions(-) create mode 100644 tests/assets/configs/basic_switched_network.yaml create mode 100644 tests/integration_tests/game_configuration.py diff --git a/src/primaite/game/game.py b/src/primaite/game/game.py index 368d899a..e0ad0384 100644 --- a/src/primaite/game/game.py +++ b/src/primaite/game/game.py @@ -31,6 +31,23 @@ from primaite.simulator.system.services.web_server.web_server import WebServer _LOGGER = getLogger(__name__) +APPLICATION_TYPES_MAPPING = { + "WebBrowser": WebBrowser, + "DataManipulationBot": DataManipulationBot, +} + +SERVICE_TYPES_MAPPING = { + "DNSClient": DNSClient, + "DNSServer": DNSServer, + "DatabaseClient": DatabaseClient, + "DatabaseService": DatabaseService, + "WebServer": WebServer, + "FTPClient": FTPClient, + "FTPServer": FTPServer, + "NTPClient": NTPClient, + "NTPServer": NTPServer, +} + class PrimaiteGameOptions(BaseModel): """ @@ -238,20 +255,9 @@ class PrimaiteGame: new_service = None service_ref = service_cfg["ref"] service_type = service_cfg["type"] - service_types_mapping = { - "DNSClient": DNSClient, # key is equal to the 'name' attr of the service class itself. - "DNSServer": DNSServer, - "DatabaseClient": DatabaseClient, - "DatabaseService": DatabaseService, - "WebServer": WebServer, - "FTPClient": FTPClient, - "FTPServer": FTPServer, - "NTPClient": NTPClient, - "NTPServer": NTPServer, - } - if service_type in service_types_mapping: + if service_type in SERVICE_TYPES_MAPPING: _LOGGER.debug(f"installing {service_type} on node {new_node.hostname}") - new_node.software_manager.install(service_types_mapping[service_type]) + new_node.software_manager.install(SERVICE_TYPES_MAPPING[service_type]) new_service = new_node.software_manager.software[service_type] game.ref_map_services[service_ref] = new_service.uuid else: @@ -280,12 +286,9 @@ class PrimaiteGame: new_application = None application_ref = application_cfg["ref"] application_type = application_cfg["type"] - application_types_mapping = { - "WebBrowser": WebBrowser, - "DataManipulationBot": DataManipulationBot, - } - if application_type in application_types_mapping: - new_node.software_manager.install(application_types_mapping[application_type]) + + if application_type in APPLICATION_TYPES_MAPPING: + new_node.software_manager.install(APPLICATION_TYPES_MAPPING[application_type]) new_application = new_node.software_manager.software[application_type] game.ref_map_applications[application_ref] = new_application.uuid else: diff --git a/tests/assets/configs/basic_switched_network.yaml b/tests/assets/configs/basic_switched_network.yaml new file mode 100644 index 00000000..f20fedce --- /dev/null +++ b/tests/assets/configs/basic_switched_network.yaml @@ -0,0 +1,114 @@ +training_config: + rl_framework: SB3 + rl_algorithm: PPO + seed: 333 + n_learn_episodes: 1 + n_eval_episodes: 5 + max_steps_per_episode: 128 + deterministic_eval: false + n_agents: 1 + agent_references: + - defender + +io_settings: + save_checkpoints: true + checkpoint_interval: 5 + save_step_metadata: false + save_pcap_logs: true + save_sys_logs: true + + +game: + max_episode_length: 256 + ports: + - ARP + - DNS + - HTTP + - POSTGRES_SERVER + protocols: + - ICMP + - TCP + - UDP + +agents: + - ref: client_2_green_user + team: GREEN + type: GreenWebBrowsingAgent + observation_space: + type: UC2GreenObservation + action_space: + action_list: + - type: DONOTHING + - type: NODE_APPLICATION_EXECUTE + options: + nodes: + - node_name: client_2 + applications: + - application_name: WebBrowser + max_folders_per_node: 1 + max_files_per_folder: 1 + max_services_per_node: 1 + max_applications_per_node: 1 + + reward_function: + reward_components: + - type: DUMMY + + agent_settings: + start_settings: + start_step: 5 + frequency: 4 + variance: 3 + +simulation: + network: + nodes: + + - ref: switch_1 + type: switch + hostname: switch_1 + num_ports: 8 + + - ref: client_1 + type: computer + hostname: client_1 + ip_address: 192.168.10.21 + subnet_mask: 255.255.255.0 + default_gateway: 192.168.10.1 + dns_server: 192.168.1.10 + applications: + - ref: client_1_web_browser + type: WebBrowser + options: + target_url: http://arcd.com/users/ + - ref: data_manipulation_bot + type: DataManipulationBot + options: + port_scan_p_of_success: 0.8 + data_manipulation_p_of_success: 0.8 + payload: "DELETE" + server_ip: 192.168.1.14 + services: + - ref: client_1_dns_client + type: DNSClient + + - ref: client_2 + type: computer + hostname: client_2 + ip_address: 192.168.10.22 + subnet_mask: 255.255.255.0 + default_gateway: 192.168.10.1 + dns_server: 192.168.1.10 + # pre installed services and applications + + links: + - ref: switch_1___client_1 + endpoint_a_ref: switch_1 + endpoint_a_port: 1 + endpoint_b_ref: client_1 + endpoint_b_port: 1 + - ref: switch_1___client_2 + endpoint_a_ref: switch_1 + endpoint_a_port: 2 + endpoint_b_ref: client_2 + endpoint_b_port: 1 diff --git a/tests/integration_tests/game_configuration.py b/tests/integration_tests/game_configuration.py new file mode 100644 index 00000000..00c94d9e --- /dev/null +++ b/tests/integration_tests/game_configuration.py @@ -0,0 +1,77 @@ +from pathlib import Path +from typing import Union + +import yaml + +from primaite.config.load import example_config_path +from primaite.game.agent.data_manipulation_bot import DataManipulationAgent +from primaite.game.agent.interface import ProxyAgent, RandomAgent +from primaite.game.game import APPLICATION_TYPES_MAPPING, PrimaiteGame, SERVICE_TYPES_MAPPING +from primaite.simulator.network.container import Network +from primaite.simulator.network.hardware.nodes.computer import Computer +from primaite.simulator.system.applications.web_browser import WebBrowser +from primaite.simulator.system.services.dns.dns_client import DNSClient +from primaite.simulator.system.services.ftp.ftp_client import FTPClient +from tests import TEST_ASSETS_ROOT + +BASIC_CONFIG = TEST_ASSETS_ROOT / "configs/basic_switched_network.yaml" + + +def load_config(config_path: Union[str, Path]) -> PrimaiteGame: + """Returns a PrimaiteGame object which loads the contents of a given yaml path.""" + with open(config_path, "r") as f: + cfg = yaml.safe_load(f) + + return PrimaiteGame.from_config(cfg) + + +def test_example_config(): + """Test that the example config can be parsed properly.""" + game = load_config(example_config_path()) + + assert len(game.agents) == 3 # red, blue and green agent + + # green agent + assert game.agents[0].agent_name == "client_2_green_user" + assert isinstance(game.agents[0], RandomAgent) + + # red agent + assert game.agents[1].agent_name == "client_1_data_manipulation_red_bot" + assert isinstance(game.agents[1], DataManipulationAgent) + + # blue agent + assert game.agents[2].agent_name == "defender" + assert isinstance(game.agents[2], ProxyAgent) + + network: Network = game.simulation.network + + assert len(network.nodes) == 10 # 10 nodes in example network + assert len(network.routers) == 1 # 1 router in network + assert len(network.switches) == 2 # 2 switches in network + assert len(network.servers) == 5 # 5 servers in network + + +def test_node_software_install(): + """Test that software can be installed on a node.""" + game = load_config(BASIC_CONFIG) + + client_1: Computer = game.simulation.network.get_node_by_hostname("client_1") + client_2: Computer = game.simulation.network.get_node_by_hostname("client_2") + + system_software = {DNSClient, FTPClient, WebBrowser} + + # check that system software is installed on client 1 + for software in system_software: + assert client_1.software_manager.software.get(software.__name__) is not None + + # check that system software is installed on client 2 + for software in system_software: + assert client_2.software_manager.software.get(software.__name__) is not None + + # check that applications have been installed on client 1 + for applications in APPLICATION_TYPES_MAPPING: + assert client_1.software_manager.software.get(applications) is not None + + # check that services have been installed on client 1 + # for service in SERVICE_TYPES_MAPPING: + # assert client_1.software_manager.software.get(service) is not None From 5e25fefa14e95abfbee522c84b6ae5471e30e7c1 Mon Sep 17 00:00:00 2001 From: Chris McCarthy Date: Wed, 7 Feb 2024 19:44:40 +0000 Subject: [PATCH 10/39] #2248 - Further fixes. All router integration tests now passing. --- .../simulator/network/hardware/base.py | 5 +- .../network/hardware/nodes/host/host_node.py | 31 +- .../network/hardware/nodes/network/router.py | 317 ++++++++++++------ .../simulator/system/core/session_manager.py | 41 ++- .../simulator/system/services/arp/arp.py | 27 +- .../simulator/system/services/icmp/icmp.py | 13 +- .../system/services/ntp/ntp_client.py | 10 +- .../system/services/ntp/ntp_server.py | 8 +- 8 files changed, 315 insertions(+), 137 deletions(-) diff --git a/src/primaite/simulator/network/hardware/base.py b/src/primaite/simulator/network/hardware/base.py index 5299b3dd..0bb68147 100644 --- a/src/primaite/simulator/network/hardware/base.py +++ b/src/primaite/simulator/network/hardware/base.py @@ -5,7 +5,7 @@ import secrets from abc import abstractmethod, ABC from ipaddress import IPv4Address, IPv4Network from pathlib import Path -from typing import Any, Literal, Union +from typing import Any, Union from typing import Dict, Optional from prettytable import MARKDOWN, PrettyTable @@ -370,11 +370,11 @@ class IPWiredNetworkInterface(WiredNetworkInterface, Layer3Interface, ABC): def enable(self): super().enable() try: + pass self._connected_node.default_gateway_hello() except AttributeError: pass - @abstractmethod def receive_frame(self, frame: Frame) -> bool: """ @@ -386,7 +386,6 @@ class IPWiredNetworkInterface(WiredNetworkInterface, Layer3Interface, ABC): pass - class WirelessNetworkInterface(NetworkInterface, ABC): """ Represents a wireless network interface in a network device. diff --git a/src/primaite/simulator/network/hardware/nodes/host/host_node.py b/src/primaite/simulator/network/hardware/nodes/host/host_node.py index eefee304..df60edc0 100644 --- a/src/primaite/simulator/network/hardware/nodes/host/host_node.py +++ b/src/primaite/simulator/network/hardware/nodes/host/host_node.py @@ -63,20 +63,22 @@ class HostARP(ARP): if arp_entry: return arp_entry.mac_address + + if ip_address == self.software_manager.node.default_gateway: + is_reattempt = True + if not is_reattempt: + self.send_arp_request(ip_address) + return self._get_arp_cache_mac_address( + ip_address=ip_address, is_reattempt=True, is_default_gateway_attempt=is_default_gateway_attempt + ) else: - if not is_reattempt: - self.send_arp_request(ip_address) - return self._get_arp_cache_mac_address( - ip_address=ip_address, is_reattempt=True, is_default_gateway_attempt=is_default_gateway_attempt - ) - else: - if self.software_manager.node.default_gateway: - if not is_default_gateway_attempt: - self.send_arp_request(self.software_manager.node.default_gateway) - return self._get_arp_cache_mac_address( - ip_address=self.software_manager.node.default_gateway, is_reattempt=True, - is_default_gateway_attempt=True - ) + if self.software_manager.node.default_gateway: + if not is_default_gateway_attempt: + self.send_arp_request(self.software_manager.node.default_gateway) + return self._get_arp_cache_mac_address( + ip_address=self.software_manager.node.default_gateway, is_reattempt=True, + is_default_gateway_attempt=True + ) return None def get_arp_cache_mac_address(self, ip_address: IPV4Address) -> Optional[str]: @@ -104,6 +106,8 @@ class HostARP(ARP): if arp_entry: return self.software_manager.node.network_interfaces[arp_entry.network_interface_uuid] else: + if ip_address == self.software_manager.node.default_gateway: + is_reattempt = True if not is_reattempt: self.send_arp_request(ip_address) return self._get_arp_cache_network_interface( @@ -147,6 +151,7 @@ class HostARP(ARP): return # Matched ARP request + # TODO: try taking this out self.add_arp_cache_entry( ip_address=arp_packet.sender_ip_address, mac_address=arp_packet.sender_mac_addr, network_interface=from_network_interface diff --git a/src/primaite/simulator/network/hardware/nodes/network/router.py b/src/primaite/simulator/network/hardware/nodes/network/router.py index 06464fd9..dbe3e2c6 100644 --- a/src/primaite/simulator/network/hardware/nodes/network/router.py +++ b/src/primaite/simulator/network/hardware/nodes/network/router.py @@ -1,23 +1,27 @@ from __future__ import annotations +import secrets from enum import Enum from ipaddress import IPv4Address, IPv4Network from typing import Dict, Any from typing import List, Optional, Tuple, Union from prettytable import MARKDOWN, PrettyTable +from pydantic import ValidationError from primaite.simulator.core import RequestManager, RequestType, SimComponent from primaite.simulator.network.hardware.base import IPWiredNetworkInterface from primaite.simulator.network.hardware.node_operating_state import NodeOperatingState from primaite.simulator.network.hardware.nodes.network.network_node import NetworkNode from primaite.simulator.network.protocols.arp import ARPPacket +from primaite.simulator.network.protocols.icmp import ICMPType, ICMPPacket from primaite.simulator.network.transmission.data_link_layer import Frame from primaite.simulator.network.transmission.network_layer import IPProtocol from primaite.simulator.network.transmission.transport_layer import Port from primaite.simulator.system.core.sys_log import SysLog from primaite.simulator.system.services.arp.arp import ARP from primaite.simulator.system.services.icmp.icmp import ICMP +from primaite.utils.validators import IPV4Address class ACLAction(Enum): @@ -542,64 +546,179 @@ class RouterARP(ARP): """ router: Optional[Router] = None - def get_arp_cache_mac_address(self, ip_address: IPv4Address) -> Optional[str]: + def _get_arp_cache_mac_address( + self, ip_address: IPV4Address, is_reattempt: bool = False, is_default_route_attempt: bool = False + ) -> Optional[str]: arp_entry = self.arp.get(ip_address) if arp_entry: return arp_entry.mac_address + + if not is_reattempt: + route = self.router.route_table.find_best_route(ip_address) + if route and route != self.router.route_table.default_route: + self.send_arp_request(route.next_hop_ip_address) + return self._get_arp_cache_mac_address( + ip_address=route.next_hop_ip_address, + is_reattempt=True, + is_default_route_attempt=is_default_route_attempt + ) + else: + if self.router.route_table.default_route: + if not is_default_route_attempt: + self.send_arp_request(self.router.route_table.default_route.next_hop_ip_address) + return self._get_arp_cache_mac_address( + ip_address=self.router.route_table.default_route.next_hop_ip_address, + is_reattempt=True, + is_default_route_attempt=True + ) return None - def get_arp_cache_network_interface(self, ip_address: IPv4Address) -> Optional[RouterInterface]: + def get_arp_cache_mac_address(self, ip_address: IPv4Address) -> Optional[str]: + return self._get_arp_cache_mac_address(ip_address) + def _get_arp_cache_network_interface( + self, ip_address: IPV4Address, is_reattempt: bool = False, is_default_route_attempt: bool = False + ) -> Optional[RouterInterface]: arp_entry = self.arp.get(ip_address) if arp_entry: return self.software_manager.node.network_interfaces[arp_entry.network_interface_uuid] + for network_interface in self.router.network_interfaces.values(): if ip_address in network_interface.ip_network: return network_interface + + if not is_reattempt: + route = self.router.route_table.find_best_route(ip_address) + if route and route != self.router.route_table.default_route: + self.send_arp_request(route.next_hop_ip_address) + return self._get_arp_cache_network_interface( + ip_address=route.next_hop_ip_address, + is_reattempt=True, + is_default_route_attempt=is_default_route_attempt + ) + else: + if self.router.route_table.default_route: + if not is_default_route_attempt: + self.send_arp_request(self.router.route_table.default_route.next_hop_ip_address) + return self._get_arp_cache_network_interface( + ip_address=self.router.route_table.default_route.next_hop_ip_address, + is_reattempt=True, + is_default_route_attempt=True + ) return None + + + def get_arp_cache_network_interface(self, ip_address: IPv4Address) -> Optional[RouterInterface]: + + return self._get_arp_cache_network_interface(ip_address) + def _process_arp_request(self, arp_packet: ARPPacket, from_network_interface: RouterInterface): super()._process_arp_request(arp_packet, from_network_interface) # If the target IP matches one of the router's NICs - for network_interface in self.router.network_interfaces.values(): - if network_interface.enabled and network_interface.ip_address == arp_packet.target_ip_address: - arp_reply = arp_packet.generate_reply(from_network_interface.mac_address) - self.send_arp_reply(arp_reply) - return + if from_network_interface.enabled and from_network_interface.ip_address == arp_packet.target_ip_address: + arp_reply = arp_packet.generate_reply(from_network_interface.mac_address) + self.send_arp_reply(arp_reply) + return def _process_arp_reply(self, arp_packet: ARPPacket, from_network_interface: RouterInterface): if arp_packet.target_ip_address == from_network_interface.ip_address: super()._process_arp_reply(arp_packet, from_network_interface) + +class RouterICMP(ICMP): + """ + The Router Internet Control Message Protocol (ICMP) service. + + Extends the ICMP service to provide router-specific functionalities for processing ICMP packets. This class is + responsible for handling ICMP operations such as echo requests and replies in the context of a router. + + Inherits from: + ICMP: Inherits core functionalities for handling ICMP operations, including the processing of echo requests + and replies. + """ + + router: Optional[Router] = None + + def _process_icmp_echo_request(self, frame: Frame, from_network_interface): + """ + Processes an ICMP echo request received by the service. + + :param frame: The network frame containing the ICMP echo request. + """ + self.sys_log.info(f"Received echo request from {frame.ip.src_ip_address}") + + network_interface = self.software_manager.session_manager.resolve_outbound_network_interface( + frame.ip.src_ip_address + ) + + if not network_interface: + self.sys_log.error( + "Cannot send ICMP echo reply as there is no outbound Network Interface to use. Try configuring the default gateway." + ) + return + + icmp_packet = ICMPPacket( + icmp_type=ICMPType.ECHO_REPLY, + icmp_code=0, + identifier=frame.icmp.identifier, + sequence=frame.icmp.sequence + 1, + ) + payload = secrets.token_urlsafe(int(32 / 1.3)) # Standard ICMP 32 bytes size + self.sys_log.info(f"Sending echo reply to {frame.ip.dst_ip_address}") + + self.software_manager.session_manager.receive_payload_from_software_manager( + payload=payload, + dst_ip_address=frame.ip.src_ip_address, + dst_port=self.port, + ip_protocol=self.protocol, + icmp_packet=icmp_packet + ) + def receive(self, payload: Any, session_id: str, **kwargs) -> bool: """ - Processes received data, handling ARP packets. + Processes received data, specifically handling ICMP echo requests and replies. - :param payload: The payload received. + This method determines the appropriate action based on the packet type and the destination IP address's + association with the router interfaces. + + Initially, it checks if the destination IP address of the ICMP packet corresponds to any router interface. If + the packet is not destined for an enabled interface but still matches a router interface, it is redirected + back to the router for further processing. This ensures proper handling of packets intended for the router + itself or needing to be routed to other destinations. + + :param payload: The payload received, expected to be an ICMP packet. :param session_id: The session ID associated with the received data. - :param kwargs: Additional keyword arguments. - :return: True if the payload was processed successfully, otherwise False. + :param kwargs: Additional keyword arguments, including 'frame' (the received network frame) and + 'from_network_interface' (the router interface that received the frame). + :return: True if the ICMP packet was processed successfully, False otherwise. False indicates either the packet + was not ICMP, the destination IP does not correspond to an enabled router interface (and no further action + was required), or the ICMP packet type is not handled by this method. """ - if not super().receive(payload, session_id, **kwargs): + frame: Frame = kwargs["frame"] + from_network_interface = kwargs["from_network_interface"] + + # Check for the presence of an ICMP payload in the frame. + if not frame.icmp: return False - arp_packet: ARPPacket = payload - from_network_interface: RouterInterface = kwargs["from_network_interface"] + # If the frame's destination IP address corresponds to any router interface, not just enabled ones. + if not self.router.ip_is_router_interface(frame.ip.dst_ip_address): + # If the frame is not for this router, pass it back down to the Router for potential further routing. + self.router.process_frame(frame=frame, from_network_interface=from_network_interface) + return True - for network_interface in self.router.network_interfaces.values(): - # ARP frame is for this Router - if network_interface.ip_address == arp_packet.target_ip_address: - if payload.request: - self._process_arp_request(arp_packet=arp_packet, from_network_interface=from_network_interface) - else: - self._process_arp_reply(arp_packet=arp_packet, from_network_interface=from_network_interface) - return True + # Ensure the destination IP address corresponds to an enabled router interface. + if not self.router.ip_is_router_interface(frame.ip.dst_ip_address, enabled_only=True): + return False - # ARP frame is not for this router, pass back down to Router to continue routing - frame: Frame = kwargs["frame"] - self.router.process_frame(frame=frame, from_network_interface=from_network_interface) + # Process ICMP echo requests and replies. + if frame.icmp.icmp_type == ICMPType.ECHO_REQUEST: + self._process_icmp_echo_request(frame, from_network_interface) + elif frame.icmp.icmp_type == ICMPType.ECHO_REPLY: + self._process_icmp_echo_reply(frame) return True @@ -720,10 +839,11 @@ class Router(NetworkNode): self.set_original_state() - def _install_system_software(self): """Install System Software - software that is usually provided with the OS.""" - self.software_manager.install(ICMP) + self.software_manager.install(RouterICMP) + icmp: RouterICMP = self.software_manager.icmp # noqa + icmp.router = self self.software_manager.install(RouterARP) arp: RouterARP = self.software_manager.arp # noqa arp.router = self @@ -756,6 +876,15 @@ class Router(NetworkNode): rm.add_request("acl", RequestType(func=self.acl._request_manager)) return rm + def ip_is_router_interface(self, ip_address: IPV4Address, enabled_only: bool = False) -> bool: + for router_interface in self.network_interface.values(): + if router_interface.ip_address == ip_address: + if enabled_only: + return router_interface.enabled + else: + return True + return False + def _get_port_of_nic(self, target_nic: RouterInterface) -> Optional[int]: """ Retrieve the port number for a given NIC. @@ -778,6 +907,61 @@ class Router(NetworkNode): state["acl"] = self.acl.describe_state() return state + def receive_frame(self, frame: Frame, from_network_interface: RouterInterface): + """ + Receive a frame from a RouterInterface and processes it based on its protocol. + + :param frame: The incoming frame. + :param from_network_interface: The network interface where the frame is coming from. + """ + + if self.operating_state != NodeOperatingState.ON: + return + + protocol = frame.ip.protocol + src_ip_address = frame.ip.src_ip_address + dst_ip_address = frame.ip.dst_ip_address + src_port = None + dst_port = None + if frame.ip.protocol == IPProtocol.TCP: + src_port = frame.tcp.src_port + dst_port = frame.tcp.dst_port + elif frame.ip.protocol == IPProtocol.UDP: + src_port = frame.udp.src_port + dst_port = frame.udp.dst_port + + # Check if it's permitted + permitted, rule = self.acl.is_permitted( + protocol=protocol, + src_ip_address=src_ip_address, + src_port=src_port, + dst_ip_address=dst_ip_address, + dst_port=dst_port, + ) + + if not permitted: + at_port = self._get_port_of_nic(from_network_interface) + self.sys_log.info(f"Frame blocked at port {at_port} by rule {rule}") + return + + if frame.ip and self.software_manager.arp: + self.software_manager.arp.add_arp_cache_entry( + ip_address=frame.ip.src_ip_address, + mac_address=frame.ethernet.src_mac_addr, + network_interface=from_network_interface + ) + + send_to_session_manager = False + if ((frame.icmp and self.ip_is_router_interface(dst_ip_address)) + or (dst_port in self.software_manager.get_open_ports())): + send_to_session_manager = True + + if send_to_session_manager: + # Port is open on this Router so pass Frame up to session manager first + self.session_manager.receive_frame(frame, from_network_interface) + else: + self.process_frame(frame, from_network_interface) + def process_frame(self, frame: Frame, from_network_interface: RouterInterface) -> None: """ Process a Frame. @@ -790,14 +974,18 @@ class Router(NetworkNode): if frame.ip: for network_interface in self.network_interfaces.values(): if network_interface.ip_address == frame.ip.dst_ip_address: - self.sys_log.info(f"Dropping frame destined for this router on an port that isn't open.") + self.sys_log.info(f"Dropping frame destined for this router on a port that isn't open.") return network_interface: RouterInterface = self.software_manager.arp.get_arp_cache_network_interface( frame.ip.dst_ip_address ) target_mac = self.software_manager.arp.get_arp_cache_mac_address(frame.ip.dst_ip_address) - self.software_manager.arp.show() + + if not target_mac: + self.sys_log.info(f"Frame dropped as ARP cannot be resolved for {frame.ip.dst_ip_address}") + # TODO: Send something back to src, is it some sort of ICMP? + return if not network_interface: self.sys_log.info(f"Destination {frame.ip.dst_ip_address} is unreachable") @@ -828,7 +1016,7 @@ class Router(NetworkNode): def route_frame(self, frame: Frame, from_network_interface: RouterInterface) -> None: route = self.route_table.find_best_route(frame.ip.dst_ip_address) if route: - network_interface = self.software_managerarp.get_arp_cache_network_interface(route.next_hop_ip_address) + network_interface = self.software_manager.arp.get_arp_cache_network_interface(route.next_hop_ip_address) target_mac = self.software_manager.arp.get_arp_cache_mac_address(route.next_hop_ip_address) if not network_interface: self.sys_log.info(f"Destination {frame.ip.dst_ip_address} is unreachable") @@ -852,73 +1040,6 @@ class Router(NetworkNode): frame.ethernet.dst_mac_addr = target_mac network_interface.send_frame(frame) - def receive_frame(self, frame: Frame, from_network_interface: RouterInterface): - """ - Receive a frame from a RouterInterface and processes it based on its protocol. - - :param frame: The incoming frame. - :param from_network_interface: The network interface where the frame is coming from. - """ - - if self.operating_state != NodeOperatingState.ON: - return - - if frame.ip and self.software_manager.arp: - self.software_manager.arp.add_arp_cache_entry( - ip_address=frame.ip.src_ip_address, - mac_address=frame.ethernet.src_mac_addr, - network_interface=from_network_interface - ) - - protocol = frame.ip.protocol - src_ip_address = frame.ip.src_ip_address - dst_ip_address = frame.ip.dst_ip_address - src_port = None - dst_port = None - if frame.ip.protocol == IPProtocol.TCP: - src_port = frame.tcp.src_port - dst_port = frame.tcp.dst_port - elif frame.ip.protocol == IPProtocol.UDP: - src_port = frame.udp.src_port - dst_port = frame.udp.dst_port - - # Check if it's permitted - permitted, rule = self.acl.is_permitted( - protocol=protocol, - src_ip_address=src_ip_address, - src_port=src_port, - dst_ip_address=dst_ip_address, - dst_port=dst_port, - ) - - if not permitted: - at_port = self._get_port_of_nic(from_network_interface) - self.sys_log.info(f"Frame blocked at port {at_port} by rule {rule}") - return - - self.software_manager.arp.add_arp_cache_entry( - ip_address=src_ip_address, mac_address=frame.ethernet.src_mac_addr, - network_interface=from_network_interface - ) - - # Check if the destination port is open on the Node - dst_port = None - if frame.tcp: - dst_port = frame.tcp.dst_port - elif frame.udp: - dst_port = frame.udp.dst_port - - send_to_session_manager = False - if ((frame.icmp and dst_ip_address == from_network_interface.ip_address) - or (dst_port in self.software_manager.get_open_ports())): - send_to_session_manager = True - - if send_to_session_manager: - # Port is open on this Router so pass Frame up to session manager first - self.session_manager.receive_frame(frame, from_network_interface) - else: - self.process_frame(frame, from_network_interface) - def configure_port(self, port: int, ip_address: Union[IPv4Address, str], subnet_mask: Union[IPv4Address, str]): """ Configure the IP settings of a given port. @@ -936,7 +1057,7 @@ class Router(NetworkNode): network_interface.subnet_mask = subnet_mask self.sys_log.info( f"Configured Network Interface {network_interface}" - ) + ) self.set_original_state() def enable_port(self, port: int): diff --git a/src/primaite/simulator/system/core/session_manager.py b/src/primaite/simulator/system/core/session_manager.py index eafdac8e..4ef10a14 100644 --- a/src/primaite/simulator/system/core/session_manager.py +++ b/src/primaite/simulator/system/core/session_manager.py @@ -147,20 +147,34 @@ class SessionManager: return self.software_manager.arp.get_default_gateway_network_interface() def resolve_outbound_transmission_details( - self, dst_ip_address: Optional[Union[IPv4Address, IPv4Network]] = None, session_id: Optional[str] = None - ) -> Tuple[Optional['NetworkInterface'], Optional[str], IPv4Address, Optional[IPProtocol], bool]: - if not isinstance(dst_ip_address, (IPv4Address, IPv4Network)): + self, + dst_ip_address: Optional[Union[IPv4Address, IPv4Network]] = None, + src_port: Optional[Port] = None, + dst_port: Optional[Port] = None, + protocol: Optional[IPProtocol] = None, + session_id: Optional[str] = None + ) -> Tuple[ + Optional['NetworkInterface'], + Optional[str], IPv4Address, + Optional[Port], + Optional[Port], + Optional[IPProtocol], + bool + ]: + if dst_ip_address and not isinstance(dst_ip_address, (IPv4Address, IPv4Network)): dst_ip_address = IPv4Address(dst_ip_address) is_broadcast = False outbound_network_interface = None dst_mac_address = None - protocol = None # Use session details if session_id is provided if session_id: session = self.sessions_by_uuid[session_id] + dst_ip_address = session.with_ip_address protocol = session.protocol + src_port = session.src_port + dst_port = session.dst_port # Determine if the payload is for broadcast or unicast @@ -183,19 +197,20 @@ class SessionManager: dst_mac_address = self.software_manager.arp.get_arp_cache_mac_address(dst_ip_address) break - if dst_ip_address: + if dst_mac_address: use_default_gateway = False outbound_network_interface = self.software_manager.arp.get_arp_cache_network_interface(dst_ip_address) if use_default_gateway: dst_mac_address = self.software_manager.arp.get_default_gateway_mac_address() outbound_network_interface = self.software_manager.arp.get_default_gateway_network_interface() - return outbound_network_interface, dst_mac_address, dst_ip_address, protocol, is_broadcast + return outbound_network_interface, dst_mac_address, dst_ip_address, src_port, dst_port, protocol, is_broadcast def receive_payload_from_software_manager( self, payload: Any, dst_ip_address: Optional[Union[IPv4Address, IPv4Network]] = None, + src_port: Optional[Port] = None, dst_port: Optional[Port] = None, session_id: Optional[str] = None, ip_protocol: IPProtocol = IPProtocol.TCP, @@ -224,10 +239,15 @@ class SessionManager: is_broadcast = payload.request ip_protocol = IPProtocol.UDP else: + vals = self.resolve_outbound_transmission_details( - dst_ip_address=dst_ip_address, session_id=session_id + dst_ip_address=dst_ip_address, + src_port=src_port, + dst_port=dst_port, + protocol=ip_protocol, + session_id=session_id ) - outbound_network_interface, dst_mac_address, dst_ip_address, protocol, is_broadcast = vals + outbound_network_interface, dst_mac_address, dst_ip_address, src_port, dst_port, protocol, is_broadcast = vals if protocol: ip_protocol = protocol @@ -235,6 +255,11 @@ class SessionManager: if not outbound_network_interface or not dst_mac_address: return False + if not (src_port or dst_port): + raise ValueError( + f"Failed to resolve src or dst port. Have you sent the port from the service or application?" + ) + tcp_header = None udp_header = None if ip_protocol == IPProtocol.TCP: diff --git a/src/primaite/simulator/system/services/arp/arp.py b/src/primaite/simulator/system/services/arp/arp.py index 6a82432e..6a04e845 100644 --- a/src/primaite/simulator/system/services/arp/arp.py +++ b/src/primaite/simulator/system/services/arp/arp.py @@ -109,9 +109,24 @@ class ARP(Service): :param target_ip_address: The target IP address for which the MAC address is being requested. """ + if target_ip_address in self.arp: + return + + use_default_gateway = True + for network_interface in self.software_manager.node.network_interfaces.values(): + if target_ip_address in network_interface.ip_network: + use_default_gateway = False + break + + if use_default_gateway: + if self.software_manager.node.default_gateway: + target_ip_address = self.software_manager.node.default_gateway + else: + return + outbound_network_interface = self.software_manager.session_manager.resolve_outbound_network_interface( target_ip_address - ) + ) if outbound_network_interface: self.sys_log.info(f"Sending ARP request from NIC {outbound_network_interface} for ip {target_ip_address}") arp_packet = ARPPacket( @@ -124,7 +139,7 @@ class ARP(Service): ) else: self.sys_log.error( - "Cannot send ARP request as there is no outbound NIC to use. Try configuring the default gateway." + "Cannot send ARP request as there is no outbound Network Interface to use. Try configuring the default gateway." ) def send_arp_reply(self, arp_reply: ARPPacket): @@ -151,12 +166,12 @@ class ARP(Service): ) else: self.sys_log.error( - "Cannot send ARP reply as there is no outbound NIC to use. Try configuring the default gateway." + "Cannot send ARP reply as there is no outbound Network Interface to use. Try configuring the default gateway." ) @abstractmethod - def _process_arp_request(self, arp_packet: ARPPacket, from_network_interface: NIC): + def _process_arp_request(self, arp_packet: ARPPacket, from_network_interface: NetworkInterface): """ Processes an incoming ARP request. @@ -168,7 +183,7 @@ class ARP(Service): f"{arp_packet.sender_mac_addr}/{arp_packet.sender_ip_address} " ) - def _process_arp_reply(self, arp_packet: ARPPacket, from_network_interface: NIC): + def _process_arp_reply(self, arp_packet: ARPPacket, from_network_interface: NetworkInterface): """ Processes an incoming ARP reply. @@ -197,7 +212,7 @@ class ARP(Service): if not super().receive(payload, session_id, **kwargs): return False - from_network_interface = kwargs.get("from_network_interface") + from_network_interface = kwargs["from_network_interface"] if payload.request: self._process_arp_request(arp_packet=payload, from_network_interface=from_network_interface) else: diff --git a/src/primaite/simulator/system/services/icmp/icmp.py b/src/primaite/simulator/system/services/icmp/icmp.py index be943c28..3ff7b21c 100644 --- a/src/primaite/simulator/system/services/icmp/icmp.py +++ b/src/primaite/simulator/system/services/icmp/icmp.py @@ -14,7 +14,7 @@ _LOGGER = getLogger(__name__) class ICMP(Service): """ - The Internet Control Message Protocol (ICMP) services. + The Internet Control Message Protocol (ICMP) service. Enables the sending and receiving of ICMP messages such as echo requests and replies. This is typically used for network diagnostics, notably the ping command. @@ -91,7 +91,7 @@ class ICMP(Service): if not network_interface: self.sys_log.error( - "Cannot send ICMP echo request as there is no outbound NIC to use. Try configuring the default gateway." + "Cannot send ICMP echo request as there is no outbound Network Interface to use. Try configuring the default gateway." ) return pings, None @@ -109,12 +109,14 @@ class ICMP(Service): ) return sequence, icmp_packet.identifier - def _process_icmp_echo_request(self, frame: Frame): + def _process_icmp_echo_request(self, frame: Frame, from_network_interface): """ Processes an ICMP echo request received by the service. :param frame: The network frame containing the ICMP echo request. """ + if frame.ip.dst_ip_address != from_network_interface.ip_address: + return self.sys_log.info(f"Received echo request from {frame.ip.src_ip_address}") network_interface = self.software_manager.session_manager.resolve_outbound_network_interface( @@ -123,7 +125,7 @@ class ICMP(Service): if not network_interface: self.sys_log.error( - "Cannot send ICMP echo reply as there is no outbound NIC to use. Try configuring the default gateway." + "Cannot send ICMP echo reply as there is no outbound Network Interface to use. Try configuring the default gateway." ) return @@ -173,12 +175,13 @@ class ICMP(Service): :return: True if the payload was processed successfully, otherwise False. """ frame: Frame = kwargs["frame"] + from_network_interface = kwargs["from_network_interface"] if not frame.icmp: return False if frame.icmp.icmp_type == ICMPType.ECHO_REQUEST: - self._process_icmp_echo_request(frame) + self._process_icmp_echo_request(frame, from_network_interface) elif frame.icmp.icmp_type == ICMPType.ECHO_REPLY: self._process_icmp_echo_reply(frame) return True diff --git a/src/primaite/simulator/system/services/ntp/ntp_client.py b/src/primaite/simulator/system/services/ntp/ntp_client.py index e8c3d0cb..dc143895 100644 --- a/src/primaite/simulator/system/services/ntp/ntp_client.py +++ b/src/primaite/simulator/system/services/ntp/ntp_client.py @@ -108,9 +108,13 @@ class NTPClient(Service): def request_time(self) -> None: """Send request to ntp_server.""" - ntp_server_packet = NTPPacket() - - self.send(payload=ntp_server_packet, dest_ip_address=self.ntp_server) + self.software_manager.session_manager.receive_payload_from_software_manager( + payload=NTPPacket(), + dst_ip_address=self.ntp_server, + src_port=self.port, + dst_port=self.port, + ip_protocol=self.protocol, + ) def apply_timestep(self, timestep: int) -> None: """ diff --git a/src/primaite/simulator/system/services/ntp/ntp_server.py b/src/primaite/simulator/system/services/ntp/ntp_server.py index 0a66384a..8e362880 100644 --- a/src/primaite/simulator/system/services/ntp/ntp_server.py +++ b/src/primaite/simulator/system/services/ntp/ntp_server.py @@ -69,5 +69,11 @@ class NTPServer(Service): time = datetime.now() payload = payload.generate_reply(time) # send reply - self.send(payload, session_id) + self.software_manager.session_manager.receive_payload_from_software_manager( + payload=payload, + src_port=self.port, + dst_port=self.port, + ip_protocol=self.protocol, + session_id=session_id + ) return True From 0c96fef3ec79d6800f7049a597cbe569e9ac42e9 Mon Sep 17 00:00:00 2001 From: Chris McCarthy Date: Wed, 7 Feb 2024 23:05:34 +0000 Subject: [PATCH 11/39] #2248 - All tests (bar the one config file test) now working. Still need to tidy up docstrings and some docs. Almost there --- src/primaite/game/game.py | 4 +- src/primaite/simulator/network/container.py | 3 +- src/primaite/simulator/network/creation.py | 12 ++-- .../simulator/network/hardware/base.py | 23 +++++++- .../network/hardware/nodes/host/host_node.py | 17 +++--- .../network/hardware/nodes/network/router.py | 19 ++++++- .../network/hardware/nodes/network/switch.py | 20 ++++--- src/primaite/simulator/network/networks.py | 54 +++++++++--------- .../system/applications/database_client.py | 5 +- .../system/services/ntp/ntp_client.py | 15 ++--- tests/conftest.py | 29 ++++------ .../environments/__init__.py | 0 .../test_action_integration.py | 6 +- .../network/test_broadcast.py | 6 +- .../network/test_frame_transmission.py | 36 ++++++------ .../network/test_network_creation.py | 48 ++++++---------- .../network/test_nic_link_connection.py | 3 +- .../system/test_database_on_node.py | 51 ++++++++--------- .../system/test_ntp_client_server.py | 8 +-- .../_simulator/_network/_hardware/test_nic.py | 11 ++-- .../_network/_hardware/test_node.py | 10 ---- .../_network/_hardware/test_node_actions.py | 3 +- .../_simulator/_network/test_container.py | 2 +- .../_applications/test_database_client.py | 56 +++++++++++-------- .../_system/_applications/test_web_browser.py | 3 +- .../_system/_services/test_database.py | 4 +- .../_system/_services/test_dns_client.py | 3 +- .../_system/_services/test_dns_server.py | 24 +++++--- .../_system/_services/test_web_server.py | 30 +++++----- 29 files changed, 270 insertions(+), 235 deletions(-) create mode 100644 tests/e2e_integration_tests/environments/__init__.py delete mode 100644 tests/unit_tests/_primaite/_simulator/_network/_hardware/test_node.py diff --git a/src/primaite/game/game.py b/src/primaite/game/game.py index 60d201f6..c25f64ab 100644 --- a/src/primaite/game/game.py +++ b/src/primaite/game/game.py @@ -319,11 +319,11 @@ class PrimaiteGame: node_a = net.nodes[game.ref_map_nodes[link_cfg["endpoint_a_ref"]]] node_b = net.nodes[game.ref_map_nodes[link_cfg["endpoint_b_ref"]]] if isinstance(node_a, Switch): - endpoint_a = node_a.switch_ports[link_cfg["endpoint_a_port"]] + endpoint_a = node_a.network_interface[link_cfg["endpoint_a_port"]] else: endpoint_a = node_a.network_interface[link_cfg["endpoint_a_port"]] if isinstance(node_b, Switch): - endpoint_b = node_b.switch_ports[link_cfg["endpoint_b_port"]] + endpoint_b = node_b.network_interface[link_cfg["endpoint_b_port"]] else: endpoint_b = node_b.network_interface[link_cfg["endpoint_b_port"]] new_link = net.connect(endpoint_a=endpoint_a, endpoint_b=endpoint_b) diff --git a/src/primaite/simulator/network/container.py b/src/primaite/simulator/network/container.py index df793319..4789134b 100644 --- a/src/primaite/simulator/network/container.py +++ b/src/primaite/simulator/network/container.py @@ -149,7 +149,8 @@ class Network(SimComponent): for nodes in nodes_type_map.values(): for node in nodes: for i, port in node.network_interface.items(): - table.add_row([node.hostname, i, port.ip_address, port.subnet_mask, node.default_gateway]) + if hasattr(port, "ip_address"): + table.add_row([node.hostname, i, port.ip_address, port.subnet_mask, node.default_gateway]) print(table) if links: diff --git a/src/primaite/simulator/network/creation.py b/src/primaite/simulator/network/creation.py index 370d85da..c1b0d43a 100644 --- a/src/primaite/simulator/network/creation.py +++ b/src/primaite/simulator/network/creation.py @@ -109,9 +109,9 @@ def create_office_lan( switch.power_on() network.add_node(switch) if num_of_switches > 1: - network.connect(core_switch.switch_ports[core_switch_port], switch.switch_ports[24]) + network.connect(core_switch.network_interface[core_switch_port], switch.network_interface[24]) else: - network.connect(router.network_interface[1], switch.switch_ports[24]) + network.connect(router.network_interface[1], switch.network_interface[24]) # Add PCs to the LAN and connect them to switches for i in range(1, num_pcs + 1): @@ -125,9 +125,9 @@ def create_office_lan( # Connect the new switch to the router or core switch if num_of_switches > 1: core_switch_port += 1 - network.connect(core_switch.switch_ports[core_switch_port], switch.switch_ports[24]) + network.connect(core_switch.network_interface[core_switch_port], switch.network_interface[24]) else: - network.connect(router.network_interface[1], switch.switch_ports[24]) + network.connect(router.network_interface[1], switch.network_interface[24]) # Create and add a PC to the network pc = Computer( @@ -142,7 +142,7 @@ def create_office_lan( # Connect the PC to the switch switch_port += 1 - network.connect(switch.switch_ports[switch_port], pc.network_interface[1]) - switch.switch_ports[switch_port].enable() + network.connect(switch.network_interface[switch_port], pc.network_interface[1]) + switch.network_interface[switch_port].enable() return network diff --git a/src/primaite/simulator/network/hardware/base.py b/src/primaite/simulator/network/hardware/base.py index 0bb68147..b7b6d3d4 100644 --- a/src/primaite/simulator/network/hardware/base.py +++ b/src/primaite/simulator/network/hardware/base.py @@ -197,6 +197,12 @@ class WiredNetworkInterface(NetworkInterface, ABC): ) return + if not self._connected_link: + self._connected_node.sys_log.info( + f"Interface {self} cannot be enabled as there is no Link connected." + ) + return + self.enabled = True self._connected_node.sys_log.info(f"Network Interface {self} enabled") self.pcap = PacketCapture(hostname=self._connected_node.hostname, interface_num=self.port_num) @@ -351,6 +357,12 @@ class IPWiredNetworkInterface(WiredNetworkInterface, Layer3Interface, ABC): Derived classes should define specific behaviors and properties of an IP-capable wired network interface, customizing it for their specific use cases. """ + _connected_link: Optional[Link] = None + "The network link to which the network interface is connected." + + def model_post_init(self, __context: Any) -> None: + if self.ip_network.network_address == self.ip_address: + raise ValueError(f"{self.ip_address}/{self.subnet_mask} must not be a network address") def describe_state(self) -> Dict: """ @@ -375,7 +387,7 @@ class IPWiredNetworkInterface(WiredNetworkInterface, Layer3Interface, ABC): except AttributeError: pass - @abstractmethod + # @abstractmethod def receive_frame(self, frame: Frame) -> bool: """ Receives a network frame on the network interface. @@ -819,6 +831,13 @@ class Node(SimComponent): table.add_row([port.value, port.name]) print(table) + @property + def has_enabled_network_interface(self) -> bool: + for network_interface in self.network_interfaces.values(): + if network_interface.enabled: + return True + return False + def show_nic(self, markdown: bool = False): """Prints a table of the NICs on the Node.""" table = PrettyTable(["Port", "Type", "MAC Address", "Address", "Speed", "Status"]) @@ -830,7 +849,7 @@ class Node(SimComponent): table.add_row( [ port, - network_interface.__name__, + type(network_interface), network_interface.mac_address, f"{network_interface.ip_address}/{network_interface.ip_network.prefixlen}", network_interface.speed, diff --git a/src/primaite/simulator/network/hardware/nodes/host/host_node.py b/src/primaite/simulator/network/hardware/nodes/host/host_node.py index df60edc0..bd13e7e2 100644 --- a/src/primaite/simulator/network/hardware/nodes/host/host_node.py +++ b/src/primaite/simulator/network/hardware/nodes/host/host_node.py @@ -1,10 +1,10 @@ from __future__ import annotations -from typing import Dict +from typing import Dict, Any from typing import Optional from primaite import getLogger -from primaite.simulator.network.hardware.base import IPWiredNetworkInterface +from primaite.simulator.network.hardware.base import IPWiredNetworkInterface, Link from primaite.simulator.network.hardware.base import Node from primaite.simulator.network.hardware.node_operating_state import NodeOperatingState from primaite.simulator.network.transmission.data_link_layer import Frame @@ -45,7 +45,7 @@ class HostARP(ARP): :return: The NIC associated with the default gateway if it exists in the ARP cache, otherwise None. """ - if self.software_manager.node.default_gateway: + if self.software_manager.node.default_gateway and self.software_manager.node.has_enabled_network_interface: return self.get_arp_cache_network_interface(self.software_manager.node.default_gateway) def _get_arp_cache_mac_address( @@ -175,12 +175,14 @@ class NIC(IPWiredNetworkInterface): and disconnect from network links and to manage the enabled/disabled state of the interface. - Layer3Interface: Provides properties for Layer 3 network configuration, such as IP address and subnet mask. """ + _connected_link: Optional[Link] = None + "The network link to which the network interface is connected." wake_on_lan: bool = False "Indicates if the NIC supports Wake-on-LAN functionality." - def __init__(self, **kwargs): - - super().__init__(**kwargs) + def model_post_init(self, __context: Any) -> None: + if self.ip_network.network_address == self.ip_address: + raise ValueError(f"{self.ip_address}/{self.subnet_mask} must not be a network address") def describe_state(self) -> Dict: """ @@ -353,7 +355,6 @@ class HostNode(Node): if accept_frame: self.session_manager.receive_frame(frame, from_network_interface) else: - # denied as port closed - self.sys_log.info(f"Ignoring frame for port {frame.tcp.dst_port.value} from {frame.ip.src_ip_address}") + self.sys_log.info(f"Ignoring frame from {frame.ip.src_ip_address}") # TODO: do we need to do anything more here? pass diff --git a/src/primaite/simulator/network/hardware/nodes/network/router.py b/src/primaite/simulator/network/hardware/nodes/network/router.py index dbe3e2c6..e5f4cdcd 100644 --- a/src/primaite/simulator/network/hardware/nodes/network/router.py +++ b/src/primaite/simulator/network/hardware/nodes/network/router.py @@ -555,6 +555,14 @@ class RouterARP(ARP): return arp_entry.mac_address if not is_reattempt: + if self.router.ip_is_in_router_interface_subnet(ip_address): + self.send_arp_request(ip_address) + return self._get_arp_cache_mac_address( + ip_address=ip_address, + is_reattempt=True, + is_default_route_attempt=is_default_route_attempt + ) + route = self.router.route_table.find_best_route(ip_address) if route and route != self.router.route_table.default_route: self.send_arp_request(route.next_hop_ip_address) @@ -818,7 +826,7 @@ class Router(NetworkNode): network_interfaces: Dict[str, RouterInterface] = {} "The Router Interfaces on the node." network_interface: Dict[int, RouterInterface] = {} - "The Router Interfaceson the node by port id." + "The Router Interfaces on the node by port id." acl: AccessControlList route_table: RouteTable @@ -885,6 +893,15 @@ class Router(NetworkNode): return True return False + def ip_is_in_router_interface_subnet(self, ip_address: IPV4Address, enabled_only: bool = False) -> bool: + for router_interface in self.network_interface.values(): + if ip_address in router_interface.ip_network: + if enabled_only: + return router_interface.enabled + else: + return True + return False + def _get_port_of_nic(self, target_nic: RouterInterface) -> Optional[int]: """ Retrieve the port number for a given NIC. diff --git a/src/primaite/simulator/network/hardware/nodes/network/switch.py b/src/primaite/simulator/network/hardware/nodes/network/switch.py index e7d5d616..1878aab7 100644 --- a/src/primaite/simulator/network/hardware/nodes/network/switch.py +++ b/src/primaite/simulator/network/hardware/nodes/network/switch.py @@ -96,16 +96,18 @@ class Switch(NetworkNode): num_ports: int = 24 "The number of ports on the switch." - switch_ports: Dict[int, SwitchPort] = {} - "The SwitchPorts on the switch." + network_interfaces: Dict[str, SwitchPort] = {} + "The SwitchPorts on the Switch." + network_interface: Dict[int, SwitchPort] = {} + "The SwitchPorts on the Switch by port id." mac_address_table: Dict[str, SwitchPort] = {} "A MAC address table mapping destination MAC addresses to corresponding SwitchPorts." def __init__(self, **kwargs): super().__init__(**kwargs) - if not self.switch_ports: - self.switch_ports = {i: SwitchPort() for i in range(1, self.num_ports + 1)} - for port_num, port in self.switch_ports.items(): + if not self.network_interface: + self.network_interface = {i: SwitchPort() for i in range(1, self.num_ports + 1)} + for port_num, port in self.network_interface.items(): port._connected_node = self port.port_num = port_num port.parent = self @@ -122,7 +124,7 @@ class Switch(NetworkNode): table.set_style(MARKDOWN) table.align = "l" table.title = f"{self.hostname} Switch Ports" - for port_num, port in self.switch_ports.items(): + for port_num, port in self.network_interface.items(): table.add_row([port_num, port.mac_address, port.speed, "Enabled" if port.enabled else "Disabled"]) print(table) @@ -133,7 +135,7 @@ class Switch(NetworkNode): :return: Current state of this object and child objects. """ state = super().describe_state() - state["ports"] = {port_num: port.describe_state() for port_num, port in self.switch_ports.items()} + state["ports"] = {port_num: port.describe_state() for port_num, port in self.network_interface.items()} state["num_ports"] = self.num_ports # redundant? state["mac_address_table"] = {mac: port.port_num for mac, port in self.mac_address_table.items()} return state @@ -171,7 +173,7 @@ class Switch(NetworkNode): outgoing_port.send_frame(frame) else: # If the destination MAC is not in the table, flood to all ports except incoming - for port in self.switch_ports.values(): + for port in self.network_interface.values(): if port.enabled and port != from_network_interface: port.send_frame(frame) @@ -183,7 +185,7 @@ class Switch(NetworkNode): :param port_number: The port number on the switch from where the link should be disconnected. :raise NetworkError: When an invalid port number is provided or the link does not match the connection. """ - port = self.switch_ports.get(port_number) + port = self.network_interface.get(port_number) if port is None: msg = f"Invalid port number {port_number} on the switch" _LOGGER.error(msg) diff --git a/src/primaite/simulator/network/networks.py b/src/primaite/simulator/network/networks.py index 1d47fdef..f830ad70 100644 --- a/src/primaite/simulator/network/networks.py +++ b/src/primaite/simulator/network/networks.py @@ -41,13 +41,13 @@ def client_server_routed() -> Network: # Switch 1 switch_1 = Switch(hostname="switch_1", num_ports=6) switch_1.power_on() - network.connect(endpoint_a=router_1.network_interface[1], endpoint_b=switch_1.switch_ports[6]) + network.connect(endpoint_a=router_1.network_interface[1], endpoint_b=switch_1.network_interface[6]) router_1.enable_port(1) # Switch 2 switch_2 = Switch(hostname="switch_2", num_ports=6) switch_2.power_on() - network.connect(endpoint_a=router_1.network_interface[2], endpoint_b=switch_2.switch_ports[6]) + network.connect(endpoint_a=router_1.network_interface[2], endpoint_b=switch_2.network_interface[6]) router_1.enable_port(2) # Client 1 @@ -56,10 +56,10 @@ def client_server_routed() -> Network: ip_address="192.168.2.2", subnet_mask="255.255.255.0", default_gateway="192.168.2.1", - operating_state=NodeOperatingState.ON, + start_up_duration=0 ) client_1.power_on() - network.connect(endpoint_b=client_1.network_interface[1], endpoint_a=switch_2.switch_ports[1]) + network.connect(endpoint_b=client_1.network_interface[1], endpoint_a=switch_2.network_interface[1]) # Server 1 server_1 = Server( @@ -67,10 +67,10 @@ def client_server_routed() -> Network: ip_address="192.168.1.2", subnet_mask="255.255.255.0", default_gateway="192.168.1.1", - operating_state=NodeOperatingState.ON, + start_up_duration=0 ) server_1.power_on() - network.connect(endpoint_b=server_1.network_interface[1], endpoint_a=switch_1.switch_ports[1]) + network.connect(endpoint_b=server_1.network_interface[1], endpoint_a=switch_1.network_interface[1]) router_1.acl.add_rule(action=ACLAction.PERMIT, src_port=Port.ARP, dst_port=Port.ARP, position=22) @@ -119,21 +119,21 @@ def arcd_uc2_network() -> Network: network = Network() # Router 1 - router_1 = Router(hostname="router_1", num_ports=5, operating_state=NodeOperatingState.ON) + router_1 = Router(hostname="router_1", num_ports=5, start_up_duration=0) router_1.power_on() router_1.configure_port(port=1, ip_address="192.168.1.1", subnet_mask="255.255.255.0") router_1.configure_port(port=2, ip_address="192.168.10.1", subnet_mask="255.255.255.0") # Switch 1 - switch_1 = Switch(hostname="switch_1", num_ports=8, operating_state=NodeOperatingState.ON) + switch_1 = Switch(hostname="switch_1", num_ports=8, start_up_duration=0) switch_1.power_on() - network.connect(endpoint_a=router_1.network_interface[1], endpoint_b=switch_1.switch_ports[8]) + network.connect(endpoint_a=router_1.network_interface[1], endpoint_b=switch_1.network_interface[8]) router_1.enable_port(1) # Switch 2 - switch_2 = Switch(hostname="switch_2", num_ports=8, operating_state=NodeOperatingState.ON) + switch_2 = Switch(hostname="switch_2", num_ports=8, start_up_duration=0) switch_2.power_on() - network.connect(endpoint_a=router_1.network_interface[2], endpoint_b=switch_2.switch_ports[8]) + network.connect(endpoint_a=router_1.network_interface[2], endpoint_b=switch_2.network_interface[8]) router_1.enable_port(2) # Client 1 @@ -143,10 +143,10 @@ def arcd_uc2_network() -> Network: subnet_mask="255.255.255.0", default_gateway="192.168.10.1", dns_server=IPv4Address("192.168.1.10"), - operating_state=NodeOperatingState.ON, + start_up_duration=0 ) client_1.power_on() - network.connect(endpoint_b=client_1.network_interface[1], endpoint_a=switch_2.switch_ports[1]) + network.connect(endpoint_b=client_1.network_interface[1], endpoint_a=switch_2.network_interface[1]) client_1.software_manager.install(DataManipulationBot) db_manipulation_bot: DataManipulationBot = client_1.software_manager.software.get("DataManipulationBot") db_manipulation_bot.configure( @@ -163,12 +163,12 @@ def arcd_uc2_network() -> Network: subnet_mask="255.255.255.0", default_gateway="192.168.10.1", dns_server=IPv4Address("192.168.1.10"), - operating_state=NodeOperatingState.ON, + start_up_duration=0 ) client_2.power_on() web_browser = client_2.software_manager.software.get("WebBrowser") web_browser.target_url = "http://arcd.com/users/" - network.connect(endpoint_b=client_2.network_interface[1], endpoint_a=switch_2.switch_ports[2]) + network.connect(endpoint_b=client_2.network_interface[1], endpoint_a=switch_2.network_interface[2]) # Domain Controller domain_controller = Server( @@ -176,12 +176,12 @@ def arcd_uc2_network() -> Network: ip_address="192.168.1.10", subnet_mask="255.255.255.0", default_gateway="192.168.1.1", - operating_state=NodeOperatingState.ON, + start_up_duration=0 ) domain_controller.power_on() domain_controller.software_manager.install(DNSServer) - network.connect(endpoint_b=domain_controller.network_interface[1], endpoint_a=switch_1.switch_ports[1]) + network.connect(endpoint_b=domain_controller.network_interface[1], endpoint_a=switch_1.network_interface[1]) # Database Server database_server = Server( @@ -190,10 +190,10 @@ def arcd_uc2_network() -> Network: subnet_mask="255.255.255.0", default_gateway="192.168.1.1", dns_server=IPv4Address("192.168.1.10"), - operating_state=NodeOperatingState.ON, + start_up_duration=0 ) database_server.power_on() - network.connect(endpoint_b=database_server.network_interface[1], endpoint_a=switch_1.switch_ports[3]) + network.connect(endpoint_b=database_server.network_interface[1], endpoint_a=switch_1.network_interface[3]) ddl = """ CREATE TABLE IF NOT EXISTS user ( @@ -264,14 +264,14 @@ def arcd_uc2_network() -> Network: subnet_mask="255.255.255.0", default_gateway="192.168.1.1", dns_server=IPv4Address("192.168.1.10"), - operating_state=NodeOperatingState.ON, + start_up_duration=0 ) web_server.power_on() web_server.software_manager.install(DatabaseClient) database_client: DatabaseClient = web_server.software_manager.software.get("DatabaseClient") database_client.configure(server_ip_address=IPv4Address("192.168.1.14")) - network.connect(endpoint_b=web_server.network_interface[1], endpoint_a=switch_1.switch_ports[2]) + network.connect(endpoint_b=web_server.network_interface[1], endpoint_a=switch_1.network_interface[2]) database_client.run() database_client.connect() @@ -279,7 +279,7 @@ def arcd_uc2_network() -> Network: # register the web_server to a domain dns_server_service: DNSServer = domain_controller.software_manager.software.get("DNSServer") # noqa - dns_server_service.dns_register("arcd.com", web_server.ip_address) + dns_server_service.dns_register("arcd.com", web_server.network_interface[1].ip_address) # Backup Server backup_server = Server( @@ -288,11 +288,11 @@ def arcd_uc2_network() -> Network: subnet_mask="255.255.255.0", default_gateway="192.168.1.1", dns_server=IPv4Address("192.168.1.10"), - operating_state=NodeOperatingState.ON, + start_up_duration=0 ) backup_server.power_on() backup_server.software_manager.install(FTPServer) - network.connect(endpoint_b=backup_server.network_interface[1], endpoint_a=switch_1.switch_ports[4]) + network.connect(endpoint_b=backup_server.network_interface[1], endpoint_a=switch_1.network_interface[4]) # Security Suite security_suite = Server( @@ -301,12 +301,12 @@ def arcd_uc2_network() -> Network: subnet_mask="255.255.255.0", default_gateway="192.168.1.1", dns_server=IPv4Address("192.168.1.10"), - operating_state=NodeOperatingState.ON, + start_up_duration=0 ) security_suite.power_on() - network.connect(endpoint_b=security_suite.network_interface[1], endpoint_a=switch_1.switch_ports[7]) + network.connect(endpoint_b=security_suite.network_interface[1], endpoint_a=switch_1.network_interface[7]) security_suite.connect_nic(NIC(ip_address="192.168.10.110", subnet_mask="255.255.255.0")) - network.connect(endpoint_b=security_suite.network_interface[2], endpoint_a=switch_2.switch_ports[7]) + network.connect(endpoint_b=security_suite.network_interface[2], endpoint_a=switch_2.network_interface[7]) router_1.acl.add_rule(action=ACLAction.PERMIT, src_port=Port.ARP, dst_port=Port.ARP, position=22) diff --git a/src/primaite/simulator/system/applications/database_client.py b/src/primaite/simulator/system/applications/database_client.py index fbeefe6a..5805ed43 100644 --- a/src/primaite/simulator/system/applications/database_client.py +++ b/src/primaite/simulator/system/applications/database_client.py @@ -23,6 +23,7 @@ class DatabaseClient(Application): server_ip_address: Optional[IPv4Address] = None server_password: Optional[str] = None + connected: bool = False _query_success_tracker: Dict[str, bool] = {} def __init__(self, **kwargs): @@ -73,9 +74,10 @@ class DatabaseClient(Application): if not connection_id: connection_id = str(uuid4()) - return self._connect( + self.connected = self._connect( server_ip_address=self.server_ip_address, password=self.server_password, connection_id=connection_id ) + return self.connected def _connect( self, @@ -147,6 +149,7 @@ class DatabaseClient(Application): self.sys_log.info( f"{self.name}: DatabaseClient disconnected connection {connection_id} from {self.server_ip_address}" ) + self.connected = False def _query(self, sql: str, query_id: str, connection_id: str, is_reattempt: bool = False) -> bool: """ diff --git a/src/primaite/simulator/system/services/ntp/ntp_client.py b/src/primaite/simulator/system/services/ntp/ntp_client.py index dc143895..ddd794ae 100644 --- a/src/primaite/simulator/system/services/ntp/ntp_client.py +++ b/src/primaite/simulator/system/services/ntp/ntp_client.py @@ -108,13 +108,14 @@ class NTPClient(Service): def request_time(self) -> None: """Send request to ntp_server.""" - self.software_manager.session_manager.receive_payload_from_software_manager( - payload=NTPPacket(), - dst_ip_address=self.ntp_server, - src_port=self.port, - dst_port=self.port, - ip_protocol=self.protocol, - ) + if self.ntp_server: + self.software_manager.session_manager.receive_payload_from_software_manager( + payload=NTPPacket(), + dst_ip_address=self.ntp_server, + src_port=self.port, + dst_port=self.port, + ip_protocol=self.protocol, + ) def apply_timestep(self, timestep: int) -> None: """ diff --git a/tests/conftest.py b/tests/conftest.py index 0043cad1..b5226a34 100644 --- a/tests/conftest.py +++ b/tests/conftest.py @@ -5,15 +5,16 @@ from typing import Any, Dict, Tuple, Union import pytest import yaml +from primaite import PRIMAITE_PATHS from primaite import getLogger from primaite.session.session import PrimaiteSession - +from primaite.simulator.file_system.file_system import FileSystem # from primaite.environment.primaite_env import Primaite # from primaite.primaite_session import PrimaiteSession from primaite.simulator.network.container import Network from primaite.simulator.network.hardware.nodes.host.computer import Computer -from primaite.simulator.network.hardware.nodes.network.router import ACLAction, Router from primaite.simulator.network.hardware.nodes.host.server import Server +from primaite.simulator.network.hardware.nodes.network.router import ACLAction, Router from primaite.simulator.network.hardware.nodes.network.switch import Switch from primaite.simulator.network.networks import arcd_uc2_network from primaite.simulator.network.transmission.network_layer import IPProtocol @@ -28,12 +29,6 @@ ACTION_SPACE_NODE_ACTION_VALUES = 1 _LOGGER = getLogger(__name__) -from primaite import PRIMAITE_PATHS - -# PrimAITE v3 stuff -from primaite.simulator.file_system.file_system import FileSystem -from primaite.simulator.network.hardware.base import Node - class TestService(Service): """Test Service class""" @@ -95,7 +90,7 @@ def application_class(): @pytest.fixture(scope="function") def file_system() -> FileSystem: - return Node(hostname="fs_node").file_system + return Computer(hostname="fs_node", ip_address="192.168.1.2", subnet_mask="255.255.255.0").file_system # PrimAITE v2 stuff @@ -190,8 +185,8 @@ def client_switch_server() -> Tuple[Computer, Switch, Server]: switch = Switch(hostname="switch", start_up_duration=0) switch.power_on() - network.connect(endpoint_a=computer.network_interface[1], endpoint_b=switch.switch_ports[1]) - network.connect(endpoint_a=server.network_interface[1], endpoint_b=switch.switch_ports[2]) + network.connect(endpoint_a=computer.network_interface[1], endpoint_b=switch.network_interface[1]) + network.connect(endpoint_a=server.network_interface[1], endpoint_b=switch.network_interface[2]) assert all(link.is_up for link in network.links.values()) @@ -233,7 +228,7 @@ def example_network() -> Network: ) switch_1.power_on() - network.connect(endpoint_a=router_1.network_interface[1], endpoint_b=switch_1.switch_ports[8]) + network.connect(endpoint_a=router_1.network_interface[1], endpoint_b=switch_1.network_interface[8]) router_1.enable_port(1) # Switch 2 @@ -243,7 +238,7 @@ def example_network() -> Network: start_up_duration=0 ) switch_2.power_on() - network.connect(endpoint_a=router_1.network_interface[2], endpoint_b=switch_2.switch_ports[8]) + network.connect(endpoint_a=router_1.network_interface[2], endpoint_b=switch_2.network_interface[8]) router_1.enable_port(2) # Client 1 @@ -255,7 +250,7 @@ def example_network() -> Network: start_up_duration=0 ) client_1.power_on() - network.connect(endpoint_b=client_1.network_interface[1], endpoint_a=switch_2.switch_ports[1]) + network.connect(endpoint_b=client_1.network_interface[1], endpoint_a=switch_2.network_interface[1]) # Client 2 client_2 = Computer( @@ -266,7 +261,7 @@ def example_network() -> Network: start_up_duration=0 ) client_2.power_on() - network.connect(endpoint_b=client_2.network_interface[1], endpoint_a=switch_2.switch_ports[2]) + network.connect(endpoint_b=client_2.network_interface[1], endpoint_a=switch_2.network_interface[2]) # Server 1 server_1 = Server( @@ -277,7 +272,7 @@ def example_network() -> Network: start_up_duration=0 ) server_1.power_on() - network.connect(endpoint_b=server_1.network_interface[1], endpoint_a=switch_1.switch_ports[1]) + network.connect(endpoint_b=server_1.network_interface[1], endpoint_a=switch_1.network_interface[1]) # DServer 2 server_2 = Server( @@ -288,7 +283,7 @@ def example_network() -> Network: start_up_duration=0 ) server_2.power_on() - network.connect(endpoint_b=server_2.network_interface[1], endpoint_a=switch_1.switch_ports[2]) + network.connect(endpoint_b=server_2.network_interface[1], endpoint_a=switch_1.network_interface[2]) router_1.acl.add_rule(action=ACLAction.PERMIT, src_port=Port.ARP, dst_port=Port.ARP, position=22) router_1.acl.add_rule(action=ACLAction.PERMIT, protocol=IPProtocol.ICMP, position=23) diff --git a/tests/e2e_integration_tests/environments/__init__.py b/tests/e2e_integration_tests/environments/__init__.py new file mode 100644 index 00000000..e69de29b diff --git a/tests/integration_tests/component_creation/test_action_integration.py b/tests/integration_tests/component_creation/test_action_integration.py index 7d3945a6..809e7816 100644 --- a/tests/integration_tests/component_creation/test_action_integration.py +++ b/tests/integration_tests/component_creation/test_action_integration.py @@ -25,9 +25,9 @@ def test_passing_actions_down(monkeypatch) -> None: downloads_folder = pc1.file_system.create_folder("downloads") pc1.file_system.create_file("bermuda_triangle.png", folder_name="downloads") - sim.network.connect(pc1.network_interface[1], s1.switch_ports[1]) - sim.network.connect(pc2.network_interface[1], s1.switch_ports[2]) - sim.network.connect(s1.switch_ports[3], srv.network_interface[1]) + sim.network.connect(pc1.network_interface[1], s1.network_interface[1]) + sim.network.connect(pc2.network_interface[1], s1.network_interface[2]) + sim.network.connect(s1.network_interface[3], srv.network_interface[1]) # call this method to make sure no errors occur. sim._request_manager.get_request_types_recursively() diff --git a/tests/integration_tests/network/test_broadcast.py b/tests/integration_tests/network/test_broadcast.py index 2dd9f7b8..d6c52acc 100644 --- a/tests/integration_tests/network/test_broadcast.py +++ b/tests/integration_tests/network/test_broadcast.py @@ -111,9 +111,9 @@ def broadcast_network() -> Network: switch_1 = Switch(hostname="switch_1", num_ports=6, start_up_duration=0) switch_1.power_on() - network.connect(endpoint_a=client_1.network_interface[1], endpoint_b=switch_1.switch_ports[1]) - network.connect(endpoint_a=client_2.network_interface[1], endpoint_b=switch_1.switch_ports[2]) - network.connect(endpoint_a=server_1.network_interface[1], endpoint_b=switch_1.switch_ports[3]) + network.connect(endpoint_a=client_1.network_interface[1], endpoint_b=switch_1.network_interface[1]) + network.connect(endpoint_a=client_2.network_interface[1], endpoint_b=switch_1.network_interface[2]) + network.connect(endpoint_a=server_1.network_interface[1], endpoint_b=switch_1.network_interface[3]) return network diff --git a/tests/integration_tests/network/test_frame_transmission.py b/tests/integration_tests/network/test_frame_transmission.py index 7beea643..5ba4fe13 100644 --- a/tests/integration_tests/network/test_frame_transmission.py +++ b/tests/integration_tests/network/test_frame_transmission.py @@ -1,5 +1,6 @@ from primaite.simulator.network.container import Network from primaite.simulator.network.hardware.nodes.host.computer import Computer +from primaite.simulator.network.hardware.nodes.host.host_node import NIC from primaite.simulator.network.hardware.nodes.host.server import Server from primaite.simulator.network.hardware.nodes.network.switch import Switch @@ -30,32 +31,33 @@ def test_node_to_node_ping(): switch_1 = Switch(hostname="switch_1", start_up_duration=0) switch_1.power_on() - network.connect(endpoint_a=client_1.network_interface[1], endpoint_b=switch_1.switch_ports[1]) - network.connect(endpoint_a=server_1.network_interface[1], endpoint_b=switch_1.switch_ports[2]) + network.connect(endpoint_a=client_1.network_interface[1], endpoint_b=switch_1.network_interface[1]) + network.connect(endpoint_a=server_1.network_interface[1], endpoint_b=switch_1.network_interface[2]) assert client_1.ping("192.168.1.11") def test_multi_nic(): """Tests that Computers with multiple NICs can ping each other and the data go across the correct links.""" - node_a = Computer(hostname="node_a", operating_state=ComputerOperatingState.ON) - nic_a = NIC(ip_address="192.168.0.10", subnet_mask="255.255.255.0") - node_a.connect_nic(nic_a) + network = Network() - node_b = Computer(hostname="node_b", operating_state=ComputerOperatingState.ON) - nic_b1 = NIC(ip_address="192.168.0.11", subnet_mask="255.255.255.0") - nic_b2 = NIC(ip_address="10.0.0.12", subnet_mask="255.0.0.0") - node_b.connect_nic(nic_b1) - node_b.connect_nic(nic_b2) + node_a = Computer(hostname="node_a", ip_address="192.168.0.10", subnet_mask="255.255.255.0", start_up_duration=0) + node_a.power_on() - node_c = Computer(hostname="node_c", operating_state=ComputerOperatingState.ON) - nic_c = NIC(ip_address="10.0.0.13", subnet_mask="255.0.0.0") - node_c.connect_nic(nic_c) + node_b = Computer(hostname="node_b", ip_address="192.168.0.11", subnet_mask="255.255.255.0", start_up_duration=0) + node_b.power_on() + node_b.connect_nic(NIC(ip_address="10.0.0.12", subnet_mask="255.0.0.0")) - Link(endpoint_a=nic_a, endpoint_b=nic_b1) + node_c = Computer(hostname="node_c", ip_address="10.0.0.13", subnet_mask="255.0.0.0", start_up_duration=0) + node_c.power_on() - Link(endpoint_a=nic_b2, endpoint_b=nic_c) + network.connect(node_a.network_interface[1], node_b.network_interface[1]) + network.connect(node_b.network_interface[2], node_c.network_interface[1]) - node_a.ping("192.168.0.11") + assert node_a.ping(node_b.network_interface[1].ip_address) - assert node_c.ping("10.0.0.12") + assert node_c.ping(node_b.network_interface[2].ip_address) + + assert not node_a.ping(node_b.network_interface[2].ip_address) + + assert not node_a.ping(node_c.network_interface[1].ip_address) diff --git a/tests/integration_tests/network/test_network_creation.py b/tests/integration_tests/network/test_network_creation.py index d9792675..6a39e101 100644 --- a/tests/integration_tests/network/test_network_creation.py +++ b/tests/integration_tests/network/test_network_creation.py @@ -1,6 +1,6 @@ from primaite.simulator.network.container import Network -from primaite.simulator.network.hardware.base import Node from primaite.simulator.network.hardware.nodes.host.computer import Computer +from primaite.simulator.network.hardware.nodes.host.host_node import NIC from primaite.simulator.network.hardware.nodes.host.server import Server @@ -26,7 +26,7 @@ def test_network(example_network): def test_adding_removing_nodes(): """Check that we can create and add a node to a network.""" net = Network() - n1 = Node(hostname="computer") + n1 = Computer(hostname="computer", ip_address="192.168.1.2", subnet_mask="255.255.255.0", start_up_duration=0) net.add_node(n1) assert n1.parent is net assert n1 in net @@ -39,7 +39,7 @@ def test_adding_removing_nodes(): def test_readding_node(): """Check that warning is raised when readding a node.""" net = Network() - n1 = Node(hostname="computer") + n1 = Computer(hostname="computer", ip_address="192.168.1.2", subnet_mask="255.255.255.0", start_up_duration=0) net.add_node(n1) net.add_node(n1) assert n1.parent is net @@ -49,7 +49,7 @@ def test_readding_node(): def test_removing_nonexistent_node(): """Check that warning is raised when trying to remove a node that is not in the network.""" net = Network() - n1 = Node(hostname="computer") + n1 = Computer(hostname="computer1", ip_address="192.168.1.1", subnet_mask="255.255.255.0", start_up_duration=0) net.remove_node(n1) assert n1.parent is None assert n1 not in net @@ -58,17 +58,13 @@ def test_removing_nonexistent_node(): def test_connecting_nodes(): """Check that two nodes on the network can be connected.""" net = Network() - n1 = Node(hostname="computer") - n1_nic = NIC(ip_address="120.30.0.1", gateway="192.168.0.1", subnet_mask="255.255.255.0") - n1.connect_nic(n1_nic) - n2 = Node(hostname="server") - n2_nic = NIC(ip_address="120.30.0.2", gateway="192.168.0.1", subnet_mask="255.255.255.0") - n2.connect_nic(n2_nic) + n1 = Computer(hostname="computer1", ip_address="192.168.1.1", subnet_mask="255.255.255.0", start_up_duration=0) + n2 = Computer(hostname="computer2", ip_address="192.168.1.2", subnet_mask="255.255.255.0", start_up_duration=0) net.add_node(n1) net.add_node(n2) - net.connect(n1.network_interfaces[n1_nic.uuid], n2.network_interfaces[n2_nic.uuid], bandwidth=30) + net.connect(n1.network_interface[1], n2.network_interface[1]) assert len(net.links) == 1 link = list(net.links.values())[0] @@ -76,40 +72,32 @@ def test_connecting_nodes(): assert link.parent is net -def test_connecting_node_to_itself(): +def test_connecting_node_to_itself_fails(): net = Network() - node = Node(hostname="computer") - nic1 = NIC(ip_address="120.30.0.1", gateway="192.168.0.1", subnet_mask="255.255.255.0") - node.connect_nic(nic1) - nic2 = NIC(ip_address="120.30.0.2", gateway="192.168.0.1", subnet_mask="255.255.255.0") - node.connect_nic(nic2) + node = Computer(hostname="node_b", ip_address="192.168.0.11", subnet_mask="255.255.255.0", start_up_duration=0) + node.power_on() + node.connect_nic(NIC(ip_address="10.0.0.12", subnet_mask="255.0.0.0")) net.add_node(node) - net.connect(node.network_interfaces[nic1.uuid], node.network_interfaces[nic2.uuid], bandwidth=30) + net.connect(node.network_interface[1], node.network_interface[2]) assert node in net - assert nic1._connected_link is None - assert nic2._connected_link is None + assert node.network_interface[1]._connected_link is None + assert node.network_interface[2]._connected_link is None assert len(net.links) == 0 def test_disconnecting_nodes(): net = Network() - n1 = Node(hostname="computer") - n1_nic = NIC(ip_address="120.30.0.1", gateway="192.168.0.1", subnet_mask="255.255.255.0") - n1.connect_nic(n1_nic) - net.add_node(n1) + n1 = Computer(hostname="computer1", ip_address="192.168.1.1", subnet_mask="255.255.255.0", start_up_duration=0) + n2 = Computer(hostname="computer2", ip_address="192.168.1.2", subnet_mask="255.255.255.0", start_up_duration=0) - n2 = Node(hostname="server") - n2_nic = NIC(ip_address="120.30.0.2", gateway="192.168.0.1", subnet_mask="255.255.255.0") - n2.connect_nic(n2_nic) - net.add_node(n2) - - net.connect(n1.network_interfaces[n1_nic.uuid], n2.network_interfaces[n2_nic.uuid], bandwidth=30) + net.connect(n1.network_interface[1], n2.network_interface[1]) assert len(net.links) == 1 + link = list(net.links.values())[0] net.remove_link(link) assert link not in net diff --git a/tests/integration_tests/network/test_nic_link_connection.py b/tests/integration_tests/network/test_nic_link_connection.py index 228099c6..f13248a2 100644 --- a/tests/integration_tests/network/test_nic_link_connection.py +++ b/tests/integration_tests/network/test_nic_link_connection.py @@ -1,6 +1,7 @@ import pytest -from primaite.simulator.network.hardware.base import Link, NIC +from primaite.simulator.network.hardware.base import Link +from primaite.simulator.network.hardware.nodes.host.host_node import NIC def test_link_fails_with_same_nic(): diff --git a/tests/integration_tests/system/test_database_on_node.py b/tests/integration_tests/system/test_database_on_node.py index df47d8ad..c259501e 100644 --- a/tests/integration_tests/system/test_database_on_node.py +++ b/tests/integration_tests/system/test_database_on_node.py @@ -3,7 +3,9 @@ from typing import Tuple import pytest -from primaite.simulator.network.hardware.base import Link, NIC, Node, NodeOperatingState +from primaite.simulator.network.container import Network +from primaite.simulator.network.hardware.node_operating_state import NodeOperatingState +from primaite.simulator.network.hardware.nodes.host.computer import Computer from primaite.simulator.network.hardware.nodes.host.server import Server from primaite.simulator.system.applications.database_client import DatabaseClient from primaite.simulator.system.services.database.database_service import DatabaseService @@ -12,17 +14,25 @@ from primaite.simulator.system.services.service import ServiceOperatingState @pytest.fixture(scope="function") -def peer_to_peer() -> Tuple[Node, Node]: - node_a = Node(hostname="node_a", operating_state=NodeOperatingState.ON) - nic_a = NIC(ip_address="192.168.0.10", subnet_mask="255.255.255.0", operating_state=NodeOperatingState.ON) - node_a.connect_nic(nic_a) +def peer_to_peer() -> Tuple[Computer, Computer]: + network = Network() + node_a = Computer( + hostname="node_a", + ip_address="192.168.0.10", + subnet_mask="255.255.255.0", + start_up_duration=0 + ) + node_a.power_on() node_a.software_manager.get_open_ports() - node_b = Node(hostname="node_b", operating_state=NodeOperatingState.ON) - nic_b = NIC(ip_address="192.168.0.11", subnet_mask="255.255.255.0") - node_b.connect_nic(nic_b) - - Link(endpoint_a=nic_a, endpoint_b=nic_b) + node_b = Computer( + hostname="node_b", + ip_address="192.168.0.11", + subnet_mask="255.255.255.0", + start_up_duration=0 + ) + node_b.power_on() + network.connect(node_a.network_interface[1], node_b.network_interface[1]) assert node_a.ping("192.168.0.11") @@ -37,26 +47,11 @@ def peer_to_peer() -> Tuple[Node, Node]: @pytest.fixture(scope="function") -def peer_to_peer_secure_db() -> Tuple[Node, Node]: - node_a = Node(hostname="node_a", operating_state=NodeOperatingState.ON) - nic_a = NIC(ip_address="192.168.0.10", subnet_mask="255.255.255.0", operating_state=NodeOperatingState.ON) - node_a.connect_nic(nic_a) - node_a.software_manager.get_open_ports() +def peer_to_peer_secure_db(peer_to_peer) -> Tuple[Computer, Computer]: + node_a, node_b = peer_to_peer - node_b = Node(hostname="node_b", operating_state=NodeOperatingState.ON) - nic_b = NIC(ip_address="192.168.0.11", subnet_mask="255.255.255.0") - node_b.connect_nic(nic_b) - - Link(endpoint_a=nic_a, endpoint_b=nic_b) - - assert node_a.ping("192.168.0.11") - - node_a.software_manager.install(DatabaseClient) - node_a.software_manager.software["DatabaseClient"].configure(server_ip_address=IPv4Address("192.168.0.11")) - node_a.software_manager.software["DatabaseClient"].run() - - node_b.software_manager.install(DatabaseService) database_service: DatabaseService = node_b.software_manager.software["DatabaseService"] # noqa + database_service.stop() database_service.password = "12345" database_service.start() return node_a, node_b diff --git a/tests/integration_tests/system/test_ntp_client_server.py b/tests/integration_tests/system/test_ntp_client_server.py index 92133d50..7e52377b 100644 --- a/tests/integration_tests/system/test_ntp_client_server.py +++ b/tests/integration_tests/system/test_ntp_client_server.py @@ -47,11 +47,11 @@ def test_ntp_client_server(create_ntp_network): assert ntp_server.operating_state == ServiceOperatingState.RUNNING assert ntp_client.operating_state == ServiceOperatingState.RUNNING - ntp_client.configure(ntp_server_ip_address=IPv4Address("192.168.0.2")) + ntp_client.configure(ntp_server_ip_address=IPv4Address("192.168.1.3")) - assert ntp_client.time is None + assert not ntp_client.time ntp_client.request_time() - assert ntp_client.time is not None + assert ntp_client.time first_time = ntp_client.time sleep(0.1) ntp_client.apply_timestep(1) # Check time advances @@ -68,7 +68,7 @@ def test_ntp_server_failure(create_ntp_network): assert ntp_client.operating_state == ServiceOperatingState.RUNNING assert ntp_client.operating_state == ServiceOperatingState.RUNNING - ntp_client.configure(ntp_server_ip_address=IPv4Address("192.168.0.2")) + ntp_client.configure(ntp_server_ip_address=IPv4Address("192.168.1.3")) # Turn off ntp server. ntp_server.stop() diff --git a/tests/unit_tests/_primaite/_simulator/_network/_hardware/test_nic.py b/tests/unit_tests/_primaite/_simulator/_network/_hardware/test_nic.py index 90b54b78..d0738c64 100644 --- a/tests/unit_tests/_primaite/_simulator/_network/_hardware/test_nic.py +++ b/tests/unit_tests/_primaite/_simulator/_network/_hardware/test_nic.py @@ -2,8 +2,10 @@ import re from ipaddress import IPv4Address import pytest +from pydantic import ValidationError -from primaite.simulator.network.hardware.base import generate_mac_address, NIC +from primaite.simulator.network.hardware.base import generate_mac_address +from primaite.simulator.network.hardware.nodes.host.host_node import NIC def test_mac_address_generation(): @@ -50,8 +52,5 @@ def test_nic_deserialize(): def test_nic_ip_address_as_network_address_fails(): """Tests NIC creation fails if ip address and subnet mask are a network address.""" - with pytest.raises(ValueError): - NIC( - ip_address="192.168.0.0", - subnet_mask="255.255.255.0", - ) + with pytest.raises(ValidationError): + NIC(ip_address="192.168.0.0", subnet_mask="255.255.255.0") diff --git a/tests/unit_tests/_primaite/_simulator/_network/_hardware/test_node.py b/tests/unit_tests/_primaite/_simulator/_network/_hardware/test_node.py deleted file mode 100644 index 0e5fb4c7..00000000 --- a/tests/unit_tests/_primaite/_simulator/_network/_hardware/test_node.py +++ /dev/null @@ -1,10 +0,0 @@ -import re -from ipaddress import IPv4Address - -import pytest - -from primaite.simulator.network.hardware.base import Node - - -def test_node_creation(): - node = Node(hostname="host_1") diff --git a/tests/unit_tests/_primaite/_simulator/_network/_hardware/test_node_actions.py b/tests/unit_tests/_primaite/_simulator/_network/_hardware/test_node_actions.py index b6f7a86d..a1b8a6c1 100644 --- a/tests/unit_tests/_primaite/_simulator/_network/_hardware/test_node_actions.py +++ b/tests/unit_tests/_primaite/_simulator/_network/_hardware/test_node_actions.py @@ -4,12 +4,13 @@ from primaite.simulator.file_system.file import File from primaite.simulator.file_system.file_system_item_abc import FileSystemItemHealthStatus from primaite.simulator.file_system.folder import Folder from primaite.simulator.network.hardware.base import Node, NodeOperatingState +from primaite.simulator.network.hardware.nodes.host.computer import Computer from primaite.simulator.system.software import SoftwareHealthState @pytest.fixture def node() -> Node: - return Node(hostname="test") + return Computer(hostname="test", ip_address="192.168.1.2", subnet_mask="255.255.255.0") def test_node_startup(node): diff --git a/tests/unit_tests/_primaite/_simulator/_network/test_container.py b/tests/unit_tests/_primaite/_simulator/_network/test_container.py index b56253fb..9d424697 100644 --- a/tests/unit_tests/_primaite/_simulator/_network/test_container.py +++ b/tests/unit_tests/_primaite/_simulator/_network/test_container.py @@ -108,7 +108,7 @@ def test_removing_node_that_does_not_exist(network): """Node that does not exist on network should not affect existing nodes.""" assert len(network.nodes) is 7 - network.remove_node(Node(hostname="new_node")) + network.remove_node(Computer(hostname="new_node", ip_address="192.168.1.2", subnet_mask="255.255.255.0")) assert len(network.nodes) is 7 diff --git a/tests/unit_tests/_primaite/_simulator/_system/_applications/test_database_client.py b/tests/unit_tests/_primaite/_simulator/_system/_applications/test_database_client.py index 6fec4555..c7d807e9 100644 --- a/tests/unit_tests/_primaite/_simulator/_system/_applications/test_database_client.py +++ b/tests/unit_tests/_primaite/_simulator/_system/_applications/test_database_client.py @@ -4,23 +4,44 @@ from uuid import uuid4 import pytest -from primaite.simulator.network.hardware.node_operating_state import NodeOperatingState +from primaite.simulator.network.container import Network from primaite.simulator.network.hardware.nodes.host.computer import Computer +from primaite.simulator.network.hardware.nodes.host.server import Server from primaite.simulator.system.applications.application import ApplicationOperatingState from primaite.simulator.system.applications.database_client import DatabaseClient +from primaite.simulator.system.services.database.database_service import DatabaseService @pytest.fixture(scope="function") def database_client_on_computer() -> Tuple[DatabaseClient, Computer]: - computer = Computer( - hostname="db_node", ip_address="192.168.0.1", subnet_mask="255.255.255.0", operating_state=NodeOperatingState.ON - ) - computer.software_manager.install(DatabaseClient) + network = Network() - database_client: DatabaseClient = computer.software_manager.software.get("DatabaseClient") + db_server = Server( + hostname="db_server", + ip_address="192.168.0.1", + subnet_mask="255.255.255.0", + start_up_duration=0 + ) + db_server.power_on() + db_server.software_manager.install(DatabaseService) + db_server.software_manager.software["DatabaseService"].start() + + db_client = Computer( + hostname="db_client", + ip_address="192.168.0.2", + subnet_mask="255.255.255.0", + start_up_duration=0 + ) + db_client.power_on() + db_client.software_manager.install(DatabaseClient) + + database_client: DatabaseClient = db_client.software_manager.software.get("DatabaseClient") database_client.configure(server_ip_address=IPv4Address("192.168.0.1")) database_client.run() - return database_client, computer + + network.connect(db_server.network_interface[1], db_client.network_interface[1]) + + return database_client, db_client def test_creation(database_client_on_computer): @@ -50,7 +71,7 @@ def test_disconnect_when_client_is_closed(database_client_on_computer): """Database client disconnect should not do anything when it is not running.""" database_client, computer = database_client_on_computer - database_client.connected = True + database_client.connect() assert database_client.server_ip_address is not None database_client.close() @@ -66,24 +87,15 @@ def test_disconnect(database_client_on_computer): """Database client should remove the connection.""" database_client, computer = database_client_on_computer - database_client._connections[str(uuid4())] = {"item": True} - assert len(database_client.connections) == 1 + assert not database_client.connected - assert database_client.operating_state is ApplicationOperatingState.RUNNING - assert database_client.server_ip_address is not None + database_client.connect() + + assert database_client.connected database_client.disconnect() - assert len(database_client.connections) == 0 - - uuid = str(uuid4()) - database_client._connections[uuid] = {"item": True} - assert len(database_client.connections) == 1 - - database_client.disconnect(connection_id=uuid) - - assert len(database_client.connections) == 0 - + assert not database_client.connected def test_query_when_client_is_closed(database_client_on_computer): """Database client should return False when it is not running.""" diff --git a/tests/unit_tests/_primaite/_simulator/_system/_applications/test_web_browser.py b/tests/unit_tests/_primaite/_simulator/_system/_applications/test_web_browser.py index 9dc7a52e..05d4a985 100644 --- a/tests/unit_tests/_primaite/_simulator/_system/_applications/test_web_browser.py +++ b/tests/unit_tests/_primaite/_simulator/_system/_applications/test_web_browser.py @@ -16,8 +16,9 @@ def web_browser() -> WebBrowser: ip_address="192.168.1.11", subnet_mask="255.255.255.0", default_gateway="192.168.1.1", - operating_state=NodeOperatingState.ON, + start_up_duration=0 ) + computer.power_on() # Web Browser should be pre-installed in computer web_browser: WebBrowser = computer.software_manager.software.get("WebBrowser") web_browser.run() diff --git a/tests/unit_tests/_primaite/_simulator/_system/_services/test_database.py b/tests/unit_tests/_primaite/_simulator/_system/_services/test_database.py index 4d96b584..0df6cf27 100644 --- a/tests/unit_tests/_primaite/_simulator/_system/_services/test_database.py +++ b/tests/unit_tests/_primaite/_simulator/_system/_services/test_database.py @@ -1,12 +1,14 @@ import pytest from primaite.simulator.network.hardware.base import Node +from primaite.simulator.network.hardware.nodes.host.computer import Computer from primaite.simulator.system.services.database.database_service import DatabaseService @pytest.fixture(scope="function") def database_server() -> Node: - node = Node(hostname="db_node") + node = Computer(hostname="db_node", ip_address="192.168.1.2", subnet_mask="255.255.255.0", start_up_duration=0) + node.power_on() node.software_manager.install(DatabaseService) node.software_manager.software.get("DatabaseService").start() return node diff --git a/tests/unit_tests/_primaite/_simulator/_system/_services/test_dns_client.py b/tests/unit_tests/_primaite/_simulator/_system/_services/test_dns_client.py index 97c1cf4e..bc11d278 100644 --- a/tests/unit_tests/_primaite/_simulator/_system/_services/test_dns_client.py +++ b/tests/unit_tests/_primaite/_simulator/_system/_services/test_dns_client.py @@ -2,7 +2,6 @@ from ipaddress import IPv4Address import pytest -from primaite.simulator.network.hardware.base import Node from primaite.simulator.network.hardware.node_operating_state import NodeOperatingState from primaite.simulator.network.hardware.nodes.host.computer import Computer from primaite.simulator.network.protocols.dns import DNSPacket, DNSReply, DNSRequest @@ -13,7 +12,7 @@ from primaite.simulator.system.services.service import ServiceOperatingState @pytest.fixture(scope="function") -def dns_client() -> Node: +def dns_client() -> Computer: node = Computer( hostname="dns_client", ip_address="192.168.1.11", diff --git a/tests/unit_tests/_primaite/_simulator/_system/_services/test_dns_server.py b/tests/unit_tests/_primaite/_simulator/_system/_services/test_dns_server.py index 5f5fdcba..937636a6 100644 --- a/tests/unit_tests/_primaite/_simulator/_system/_services/test_dns_server.py +++ b/tests/unit_tests/_primaite/_simulator/_system/_services/test_dns_server.py @@ -2,13 +2,15 @@ from ipaddress import IPv4Address import pytest +from primaite.simulator.network.container import Network from primaite.simulator.network.hardware.base import Node from primaite.simulator.network.hardware.node_operating_state import NodeOperatingState +from primaite.simulator.network.hardware.nodes.host.computer import Computer from primaite.simulator.network.hardware.nodes.host.server import Server -from primaite.simulator.network.protocols.dns import DNSPacket, DNSRequest from primaite.simulator.network.transmission.network_layer import IPProtocol from primaite.simulator.network.transmission.transport_layer import Port from primaite.simulator.system.services.dns.dns_server import DNSServer +from primaite.simulator.system.services.dns.dns_client import DNSClient @pytest.fixture(scope="function") @@ -51,14 +53,18 @@ def test_dns_server_receive(dns_server): # register the web server in the domain controller dns_server_service.dns_register(domain_name="real-domain.com", domain_ip_address=IPv4Address("192.168.1.12")) - assert ( - dns_server_service.receive(payload=DNSPacket(dns_request=DNSRequest(domain_name_request="fake-domain.com"))) - is False - ) + client = Computer(hostname="client", ip_address="192.168.1.11", subnet_mask="255.255.255.0", start_up_duration=0) + client.power_on() + client.dns_server = IPv4Address("192.168.1.10") + network = Network() + network.connect(dns_server.network_interface[1], client.network_interface[1]) + dns_client: DNSClient = client.software_manager.software["DNSClient"] # noqa + dns_client.check_domain_exists("fake-domain.com") + + assert dns_client.check_domain_exists("fake-domain.com") is False + + assert dns_client.check_domain_exists("real-domain.com") is False + - assert ( - dns_server_service.receive(payload=DNSPacket(dns_request=DNSRequest(domain_name_request="real-domain.com"))) - is True - ) dns_server_service.show() diff --git a/tests/unit_tests/_primaite/_simulator/_system/_services/test_web_server.py b/tests/unit_tests/_primaite/_simulator/_system/_services/test_web_server.py index 2e645435..d2190ed4 100644 --- a/tests/unit_tests/_primaite/_simulator/_system/_services/test_web_server.py +++ b/tests/unit_tests/_primaite/_simulator/_system/_services/test_web_server.py @@ -22,7 +22,7 @@ def web_server() -> Server: default_gateway="192.168.1.1", operating_state=NodeOperatingState.ON, ) - node.software_manager.install(software_class=WebServer) + node.software_manager.install(WebServer) node.software_manager.software.get("WebServer").start() return node @@ -53,17 +53,17 @@ def test_handling_get_request_home_page(web_server): assert response.status_code == HttpStatusCode.OK -def test_process_http_request_get(web_server): - payload = HttpRequestPacket(request_method=HttpRequestMethod.GET, request_url="http://domain.com/") - - web_server_service: WebServer = web_server.software_manager.software.get("WebServer") - - assert web_server_service._process_http_request(payload=payload) is True - - -def test_process_http_request_method_not_allowed(web_server): - payload = HttpRequestPacket(request_method=HttpRequestMethod.DELETE, request_url="http://domain.com/") - - web_server_service: WebServer = web_server.software_manager.software.get("WebServer") - - assert web_server_service._process_http_request(payload=payload) is False +# def test_process_http_request_get(web_server): +# payload = HttpRequestPacket(request_method=HttpRequestMethod.GET, request_url="http://domain.com/") +# +# web_server_service: WebServer = web_server.software_manager.software.get("WebServer") +# +# assert web_server_service._process_http_request(payload=payload) is True +# +# +# def test_process_http_request_method_not_allowed(web_server): +# payload = HttpRequestPacket(request_method=HttpRequestMethod.DELETE, request_url="http://domain.com/") +# +# web_server_service: WebServer = web_server.software_manager.software.get("WebServer") +# +# assert web_server_service._process_http_request(payload=payload) is False From a4b787860442cfa17e611edd8baac726eaab306d Mon Sep 17 00:00:00 2001 From: Czar Echavez Date: Thu, 8 Feb 2024 10:36:07 +0000 Subject: [PATCH 12/39] #2258: added NTPClient to system software + testing all installable software on client1 in config --- .../network/hardware/nodes/computer.py | 4 ++++ .../configs/basic_switched_network.yaml | 22 ++++++++++++++++--- tests/integration_tests/game_configuration.py | 7 +++--- 3 files changed, 27 insertions(+), 6 deletions(-) diff --git a/src/primaite/simulator/network/hardware/nodes/computer.py b/src/primaite/simulator/network/hardware/nodes/computer.py index 0480aca9..9b076647 100644 --- a/src/primaite/simulator/network/hardware/nodes/computer.py +++ b/src/primaite/simulator/network/hardware/nodes/computer.py @@ -2,6 +2,7 @@ from primaite.simulator.network.hardware.base import NIC, Node from primaite.simulator.system.applications.web_browser import WebBrowser from primaite.simulator.system.services.dns.dns_client import DNSClient from primaite.simulator.system.services.ftp.ftp_client import FTPClient +from primaite.simulator.system.services.ntp.ntp_client import NTPClient class Computer(Node): @@ -49,6 +50,9 @@ class Computer(Node): # FTP self.software_manager.install(FTPClient) + # NTP + self.software_manager.install(NTPClient) + # Web Browser self.software_manager.install(WebBrowser) diff --git a/tests/assets/configs/basic_switched_network.yaml b/tests/assets/configs/basic_switched_network.yaml index f20fedce..774c4aa2 100644 --- a/tests/assets/configs/basic_switched_network.yaml +++ b/tests/assets/configs/basic_switched_network.yaml @@ -89,9 +89,25 @@ simulation: payload: "DELETE" server_ip: 192.168.1.14 services: - - ref: client_1_dns_client - type: DNSClient - + - ref: client_1_dns_server + type: DNSServer + options: + domain_mapping: + arcd.com: 192.168.1.12 # web server + - ref: client_1_database_client + type: DatabaseClient + options: + db_server_ip: 192.168.10.21 + - ref: client_1_database_service + type: DatabaseService + options: + backup_server_ip: 192.168.10.21 + - ref: client_1_web_service + type: WebServer + - ref: client_1_ftp_server + type: FTPServer + - ref: client_1_ntp_server + type: NTPServer - ref: client_2 type: computer hostname: client_2 diff --git a/tests/integration_tests/game_configuration.py b/tests/integration_tests/game_configuration.py index 00c94d9e..ff977082 100644 --- a/tests/integration_tests/game_configuration.py +++ b/tests/integration_tests/game_configuration.py @@ -12,6 +12,7 @@ from primaite.simulator.network.hardware.nodes.computer import Computer from primaite.simulator.system.applications.web_browser import WebBrowser from primaite.simulator.system.services.dns.dns_client import DNSClient from primaite.simulator.system.services.ftp.ftp_client import FTPClient +from primaite.simulator.system.services.ntp.ntp_client import NTPClient from tests import TEST_ASSETS_ROOT BASIC_CONFIG = TEST_ASSETS_ROOT / "configs/basic_switched_network.yaml" @@ -58,7 +59,7 @@ def test_node_software_install(): client_1: Computer = game.simulation.network.get_node_by_hostname("client_1") client_2: Computer = game.simulation.network.get_node_by_hostname("client_2") - system_software = {DNSClient, FTPClient, WebBrowser} + system_software = {DNSClient, FTPClient, NTPClient, WebBrowser} # check that system software is installed on client 1 for software in system_software: @@ -73,5 +74,5 @@ def test_node_software_install(): assert client_1.software_manager.software.get(applications) is not None # check that services have been installed on client 1 - # for service in SERVICE_TYPES_MAPPING: - # assert client_1.software_manager.software.get(service) is not None + for service in SERVICE_TYPES_MAPPING: + assert client_1.software_manager.software.get(service) is not None From 411f0a320fb651179be2c2fb65b77579b8018aee Mon Sep 17 00:00:00 2001 From: Chris McCarthy Date: Thu, 8 Feb 2024 10:53:30 +0000 Subject: [PATCH 13/39] #2248 - Final run over all the docstrings after running pre-commit. All tests now working. Updated CHANGELOG.md. --- CHANGELOG.md | 13 + src/primaite/game/agent/observations.py | 8 +- src/primaite/game/game.py | 2 +- src/primaite/simulator/network/container.py | 2 +- .../simulator/network/hardware/base.py | 72 +++-- .../network_interface/layer_3_interface.py | 9 - .../network_interface/wired/__init__.py | 0 .../wired/router_interface.py | 0 .../wireless/wireless_access_point.py | 3 +- .../wireless/wireless_nic.py | 3 +- .../network/hardware/nodes/host/computer.py | 2 +- .../network/hardware/nodes/host/host_node.py | 120 ++++--- .../network/hardware/nodes/host/server.py | 1 - .../hardware/nodes/network/network_node.py | 25 +- .../network/hardware/nodes/network/router.py | 304 ++++++++++++------ .../network/hardware/nodes/network/switch.py | 5 +- src/primaite/simulator/network/networks.py | 21 +- .../simulator/network/protocols/icmp.py | 2 +- .../network/transmission/data_link_layer.py | 1 - .../network/transmission/network_layer.py | 7 +- .../simulator/system/core/packet_capture.py | 1 - .../simulator/system/core/session_manager.py | 112 +++++-- .../simulator/system/core/software_manager.py | 29 +- .../simulator/system/services/arp/arp.py | 30 +- .../simulator/system/services/icmp/icmp.py | 33 +- .../system/services/ntp/ntp_server.py | 6 +- src/primaite/simulator/system/software.py | 2 +- src/primaite/utils/validators.py | 6 +- tests/conftest.py | 30 +- .../network/test_broadcast.py | 7 +- .../network/test_frame_transmission.py | 1 - .../network/test_network_creation.py | 1 - .../integration_tests/network/test_routing.py | 4 +- .../test_dos_bot_and_server.py | 2 +- .../system/test_database_on_node.py | 14 +- .../system/test_dns_client_server.py | 3 +- .../system/test_web_client_server.py | 5 +- .../test_web_client_server_and_database.py | 5 +- .../_applications/test_database_client.py | 13 +- .../_system/_applications/test_web_browser.py | 2 +- .../_system/_services/test_dns_server.py | 4 +- 41 files changed, 582 insertions(+), 328 deletions(-) delete mode 100644 src/primaite/simulator/network/hardware/network_interface/layer_3_interface.py delete mode 100644 src/primaite/simulator/network/hardware/network_interface/wired/__init__.py delete mode 100644 src/primaite/simulator/network/hardware/network_interface/wired/router_interface.py diff --git a/CHANGELOG.md b/CHANGELOG.md index 5d8706ad..68bc3b81 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -60,6 +60,12 @@ SessionManager. - **Custom Layer-3 Processing**: The `RouterNIC` class includes custom handling for network frames, bypassing standard Node NIC's Layer 3 broadcast/unicast checks. This allows for more efficient routing behavior in network scenarios where router-specific frame processing is required. - **Enhanced Frame Reception**: The `receive_frame` method in `RouterNIC` is tailored to handle frames based on Layer 2 (Ethernet) checks, focusing on MAC address-based routing and broadcast frame acceptance. - **Subnet-Wide Broadcasting for Services and Applications**: Implemented the ability for services and applications to conduct broadcasts across an entire IPv4 subnet within the network simulation framework. +- Introduced the `NetworkInterface` abstract class to provide a common interface for all network interfaces. Subclasses are divided into two main categories: `WiredNetworkInterface` and `WirelessNetworkInterface`, each serving as an abstract base class (ABC) for more specific interface types. Under `WiredNetworkInterface`, the subclasses `NIC` and `SwitchPort` were added. For wireless interfaces, `WirelessNIC` and `WirelessAccessPoint` are the subclasses under `WirelessNetworkInterface`. +- Added `Layer3Interface` as an abstract base class for networking functionalities at layer 3, including IP addressing and routing capabilities. This class is inherited by `NIC`, `WirelessNIC`, and `WirelessAccessPoint` to provide them with layer 3 capabilities, facilitating their role in both wired and wireless networking contexts with IP-based communication. +- Created the `ARP` and `ICMP` service classes to handle Address Resolution Protocol operations and Internet Control Message Protocol messages, respectively, with `RouterARP` and `RouterICMP` for router-specific implementations. +- Created `HostNode` as a subclass of `Node`, extending its functionality with host-specific services and applications. This class is designed to represent end-user devices like computers or servers that can initiate and respond to network communications. +- Introduced a new `IPV4Address` type in the Pydantic model for enhanced validation and auto-conversion of IPv4 addresses from strings using an `ipv4_validator`. + ### Changed - Integrated the RouteTable into the Routers frame processing. @@ -67,6 +73,9 @@ SessionManager. - **NIC Functionality Update**: Updated the Network Interface Card (`NIC`) functionality to support Layer 3 (L3) broadcasts. - **Layer 3 Broadcast Handling**: Enhanced the existing `NIC` classes to correctly process and handle Layer 3 broadcasts. This update allows devices using standard NICs to effectively participate in network activities that involve L3 broadcasting. - **Improved Frame Reception Logic**: The `receive_frame` method of the `NIC` class has been updated to include additional checks and handling for L3 broadcasts, ensuring proper frame processing in a wider range of network scenarios. +- Standardised the way network interfaces are accessed across all `Node` subclasses (`HostNode`, `Router`, `Switch`) by maintaining a comprehensive `network_interface` attribute. This attribute captures all network interfaces by their port number, streamlining the management and interaction with network interfaces across different types of nodes. +- Refactored all tests to utilise new `Node` subclasses (`Computer`, `Server`, `Router`, `Switch`) instead of creating generic `Node` instances and manually adding network interfaces. This change aligns test setups more closely with the intended use cases and hierarchies within the network simulation framework. +- Updated all tests to employ the `Network()` class for managing nodes and their connections, ensuring a consistent and structured approach to setting up network topologies in testing scenarios. ### Removed @@ -74,6 +83,10 @@ SessionManager. - Removed legacy training modules - Removed tests for legacy code +### Fixed +- Addressed network transmission issues that previously allowed ARP requests to be incorrectly routed and repeated across different subnets. This fix ensures ARP requests are correctly managed and confined to their appropriate network segments. +- Resolved problems in `Node` and its subclasses where the default gateway configuration was not properly utilized for communications across different subnets. This correction ensures that nodes effectively use their configured default gateways for outbound communications to other network segments, thereby enhancing the network's routing functionality and reliability. + ## [2.0.0] - 2023-07-26 diff --git a/src/primaite/game/agent/observations.py b/src/primaite/game/agent/observations.py index 8f1c739c..715e594e 100644 --- a/src/primaite/game/agent/observations.py +++ b/src/primaite/game/agent/observations.py @@ -494,7 +494,9 @@ class NodeObservation(AbstractObservation): obs["SERVICES"] = {i + 1: service.observe(state) for i, service in enumerate(self.services)} obs["FOLDERS"] = {i + 1: folder.observe(state) for i, folder in enumerate(self.folders)} obs["operating_status"] = node_state["operating_state"] - obs["NETWORK_INTERFACES"] = {i + 1: network_interface.observe(state) for i, network_interface in enumerate(self.network_interfaces)} + obs["NETWORK_INTERFACES"] = { + i + 1: network_interface.observe(state) for i, network_interface in enumerate(self.network_interfaces) + } if self.logon_status: obs["logon_status"] = 0 @@ -508,7 +510,9 @@ class NodeObservation(AbstractObservation): "SERVICES": spaces.Dict({i + 1: service.space for i, service in enumerate(self.services)}), "FOLDERS": spaces.Dict({i + 1: folder.space for i, folder in enumerate(self.folders)}), "operating_status": spaces.Discrete(5), - "NETWORK_INTERFACES": spaces.Dict({i + 1: network_interface.space for i, network_interface in enumerate(self.network_interfaces)}), + "NETWORK_INTERFACES": spaces.Dict( + {i + 1: network_interface.space for i, network_interface in enumerate(self.network_interfaces)} + ), } if self.logon_status: space_shape["logon_status"] = spaces.Discrete(3) diff --git a/src/primaite/game/game.py b/src/primaite/game/game.py index c25f64ab..f1f66e40 100644 --- a/src/primaite/game/game.py +++ b/src/primaite/game/game.py @@ -14,8 +14,8 @@ from primaite.session.io import SessionIO, SessionIOSettings from primaite.simulator.network.hardware.base import NodeOperatingState from primaite.simulator.network.hardware.nodes.host.computer import Computer from primaite.simulator.network.hardware.nodes.host.host_node import NIC -from primaite.simulator.network.hardware.nodes.network.router import Router from primaite.simulator.network.hardware.nodes.host.server import Server +from primaite.simulator.network.hardware.nodes.network.router import Router from primaite.simulator.network.hardware.nodes.network.switch import Switch from primaite.simulator.sim_container import Simulation from primaite.simulator.system.applications.database_client import DatabaseClient diff --git a/src/primaite/simulator/network/container.py b/src/primaite/simulator/network/container.py index 4789134b..d3a26e73 100644 --- a/src/primaite/simulator/network/container.py +++ b/src/primaite/simulator/network/container.py @@ -9,8 +9,8 @@ from primaite import getLogger from primaite.simulator.core import RequestManager, RequestType, SimComponent from primaite.simulator.network.hardware.base import Link, Node, WiredNetworkInterface from primaite.simulator.network.hardware.nodes.host.computer import Computer -from primaite.simulator.network.hardware.nodes.network.router import Router from primaite.simulator.network.hardware.nodes.host.server import Server +from primaite.simulator.network.hardware.nodes.network.router import Router from primaite.simulator.network.hardware.nodes.network.switch import Switch from primaite.simulator.system.applications.application import Application from primaite.simulator.system.services.service import Service diff --git a/src/primaite/simulator/network/hardware/base.py b/src/primaite/simulator/network/hardware/base.py index b7b6d3d4..c742ca33 100644 --- a/src/primaite/simulator/network/hardware/base.py +++ b/src/primaite/simulator/network/hardware/base.py @@ -2,14 +2,13 @@ from __future__ import annotations import re import secrets -from abc import abstractmethod, ABC +from abc import ABC, abstractmethod from ipaddress import IPv4Address, IPv4Network from pathlib import Path -from typing import Any, Union -from typing import Dict, Optional +from typing import Any, Dict, Optional, Union from prettytable import MARKDOWN, PrettyTable -from pydantic import Field, BaseModel +from pydantic import BaseModel, Field from primaite import getLogger from primaite.exceptions import NetworkError @@ -48,7 +47,7 @@ def generate_mac_address(oui: Optional[str] = None) -> str: _LOGGER.error(msg) raise ValueError(msg) oui_bytes = [int(chunk, 16) for chunk in oui.split(":")] - mac = oui_bytes + random_bytes[len(oui_bytes):] + mac = oui_bytes + random_bytes[len(oui_bytes) :] else: mac = random_bytes @@ -198,9 +197,7 @@ class WiredNetworkInterface(NetworkInterface, ABC): return if not self._connected_link: - self._connected_node.sys_log.info( - f"Interface {self} cannot be enabled as there is no Link connected." - ) + self._connected_node.sys_log.info(f"Interface {self} cannot be enabled as there is no Link connected.") return self.enabled = True @@ -225,9 +222,9 @@ class WiredNetworkInterface(NetworkInterface, ABC): """ Connect this network interface to a specified link. - This method establishes a connection between the network interface and a network link if the network interface is not already - connected. If the network interface is already connected to a link, it logs an error and does not change the existing - connection. + This method establishes a connection between the network interface and a network link if the network interface + is not already connected. If the network interface is already connected to a link, it logs an error and does + not change the existing connection. :param link: The Link instance to connect to this network interface. """ @@ -246,8 +243,8 @@ class WiredNetworkInterface(NetworkInterface, ABC): """ Disconnect the network interface from its connected Link, if any. - This method removes the association between the network interface and its connected Link. It updates the connected Link's - endpoints to reflect the disconnection. + This method removes the association between the network interface and its connected Link. It updates the + connected Link's endpoints to reflect the disconnection. """ if self._connected_link.endpoint_a == self: self._connected_link.endpoint_a = None @@ -298,6 +295,7 @@ class Layer3Interface(BaseModel, ABC): :ivar IPv4Address subnet_mask: The subnet mask assigned to the interface. This mask helps in determining the network segment that the interface belongs to and is used in IP routing decisions. """ + ip_address: IPV4Address "The IP address assigned to the interface for communication on an IP-based network." @@ -357,10 +355,23 @@ class IPWiredNetworkInterface(WiredNetworkInterface, Layer3Interface, ABC): Derived classes should define specific behaviors and properties of an IP-capable wired network interface, customizing it for their specific use cases. """ + _connected_link: Optional[Link] = None "The network link to which the network interface is connected." def model_post_init(self, __context: Any) -> None: + """ + Performs post-initialisation checks to ensure the model's IP configuration is valid. + + This method is invoked after the initialisation of a network model object to validate its network settings, + particularly to ensure that the assigned IP address is not a network address. This validation is crucial for + maintaining the integrity of network simulations and avoiding configuration errors that could lead to + unrealistic or incorrect behavior. + + :param __context: Contextual information or parameters passed to the method, used for further initializing or + validating the model post-creation. + :raises ValueError: If the IP address is the same as the network address, indicating an incorrect configuration. + """ if self.ip_network.network_address == self.ip_address: raise ValueError(f"{self.ip_address}/{self.subnet_mask} must not be a network address") @@ -380,6 +391,17 @@ class IPWiredNetworkInterface(WiredNetworkInterface, Layer3Interface, ABC): return state def enable(self): + """ + Enables this wired network interface and attempts to send a "hello" message to the default gateway. + + This method activates the network interface, making it operational for network communications. After enabling, + it tries to initiate a default gateway "hello" process, typically to establish initial connectivity and resolve + the default gateway's MAC address. This step is crucial for ensuring the interface can successfully send data + to and receive data from the network. + + The method safely handles cases where the connected node might not have a default gateway set or the + `default_gateway_hello` method is not defined, ignoring such errors to proceed without interruption. + """ super().enable() try: pass @@ -440,8 +462,8 @@ class IPWirelessNetworkInterface(WiredNetworkInterface, Layer3Interface, ABC): As an abstract class, `IPWirelessNetworkInterface` does not implement specific methods but ensures that any derived class provides implementations for the functionalities of both `WirelessNetworkInterface` and `Layer3Interface`. This setup is ideal for representing network interfaces in devices that require wireless connections and are capable - of IP routing and addressing, such as wireless routers, access points, and wireless end-host devices like smartphones - and laptops. + of IP routing and addressing, such as wireless routers, access points, and wireless end-host devices like + smartphones and laptops. This class should be extended by concrete classes that define specific behaviors and properties of an IP-capable wireless network interface. @@ -804,8 +826,10 @@ class Node(SimComponent): { "hostname": self.hostname, "operating_state": self.operating_state.value, - "NICs": {eth_num: network_interface.describe_state() for eth_num, network_interface in - self.network_interface.items()}, + "NICs": { + eth_num: network_interface.describe_state() + for eth_num, network_interface in self.network_interface.items() + }, "file_system": self.file_system.describe_state(), "applications": {app.name: app.describe_state() for app in self.applications.values()}, "services": {svc.name: svc.describe_state() for svc in self.services.values()}, @@ -816,7 +840,7 @@ class Node(SimComponent): return state def show(self, markdown: bool = False): - "Show function that calls both show NIC and show open ports." + """Show function that calls both show NIC and show open ports.""" self.show_nic(markdown) self.show_open_ports(markdown) @@ -833,6 +857,14 @@ class Node(SimComponent): @property def has_enabled_network_interface(self) -> bool: + """ + Checks if the node has at least one enabled network interface. + + Iterates through all network interfaces associated with the node to determine if at least one is enabled. This + property is essential for determining the node's ability to communicate within the network. + + :return: True if there is at least one enabled network interface; otherwise, False. + """ for network_interface in self.network_interfaces.values(): if network_interface.enabled: return True @@ -1014,7 +1046,7 @@ class Node(SimComponent): """ if self.operating_state.ON: self.is_resetting = True - self.sys_log.info(f"Resetting") + self.sys_log.info("Resetting") self.power_off() def connect_nic(self, network_interface: NetworkInterface): @@ -1097,7 +1129,7 @@ class Node(SimComponent): self.software_manager.arp.add_arp_cache_entry( ip_address=frame.ip.src_ip_address, mac_address=frame.ethernet.src_mac_addr, - network_interface=from_network_interface + network_interface=from_network_interface, ) else: return diff --git a/src/primaite/simulator/network/hardware/network_interface/layer_3_interface.py b/src/primaite/simulator/network/hardware/network_interface/layer_3_interface.py deleted file mode 100644 index fdfd3b26..00000000 --- a/src/primaite/simulator/network/hardware/network_interface/layer_3_interface.py +++ /dev/null @@ -1,9 +0,0 @@ -from abc import ABC -from ipaddress import IPv4Network -from typing import Dict - -from pydantic import BaseModel - -from primaite.utils.validators import IPV4Address - - diff --git a/src/primaite/simulator/network/hardware/network_interface/wired/__init__.py b/src/primaite/simulator/network/hardware/network_interface/wired/__init__.py deleted file mode 100644 index e69de29b..00000000 diff --git a/src/primaite/simulator/network/hardware/network_interface/wired/router_interface.py b/src/primaite/simulator/network/hardware/network_interface/wired/router_interface.py deleted file mode 100644 index e69de29b..00000000 diff --git a/src/primaite/simulator/network/hardware/network_interface/wireless/wireless_access_point.py b/src/primaite/simulator/network/hardware/network_interface/wireless/wireless_access_point.py index f94b7faa..646c12f4 100644 --- a/src/primaite/simulator/network/hardware/network_interface/wireless/wireless_access_point.py +++ b/src/primaite/simulator/network/hardware/network_interface/wireless/wireless_access_point.py @@ -2,7 +2,6 @@ from typing import Dict from primaite.simulator.network.hardware.base import WirelessNetworkInterface from primaite.simulator.network.hardware.network_interface.layer_3_interface import Layer3Interface - from primaite.simulator.network.transmission.data_link_layer import Frame @@ -81,4 +80,4 @@ class WirelessAccessPoint(WirelessNetworkInterface, Layer3Interface): :return: A string combining the port number, MAC address and IP address of the NIC. """ - return f"Port {self.port_num}: {self.mac_address}/{self.ip_address}" \ No newline at end of file + return f"Port {self.port_num}: {self.mac_address}/{self.ip_address}" diff --git a/src/primaite/simulator/network/hardware/network_interface/wireless/wireless_nic.py b/src/primaite/simulator/network/hardware/network_interface/wireless/wireless_nic.py index 12172608..40f357a0 100644 --- a/src/primaite/simulator/network/hardware/network_interface/wireless/wireless_nic.py +++ b/src/primaite/simulator/network/hardware/network_interface/wireless/wireless_nic.py @@ -2,7 +2,6 @@ from typing import Dict from primaite.simulator.network.hardware.base import WirelessNetworkInterface from primaite.simulator.network.hardware.network_interface.layer_3_interface import Layer3Interface - from primaite.simulator.network.transmission.data_link_layer import Frame @@ -78,4 +77,4 @@ class WirelessNIC(WirelessNetworkInterface, Layer3Interface): :return: A string combining the port number, MAC address and IP address of the NIC. """ - return f"Port {self.port_num}: {self.mac_address}/{self.ip_address}" \ No newline at end of file + return f"Port {self.port_num}: {self.mac_address}/{self.ip_address}" diff --git a/src/primaite/simulator/network/hardware/nodes/host/computer.py b/src/primaite/simulator/network/hardware/nodes/host/computer.py index dc75df69..0b13163e 100644 --- a/src/primaite/simulator/network/hardware/nodes/host/computer.py +++ b/src/primaite/simulator/network/hardware/nodes/host/computer.py @@ -28,5 +28,5 @@ class Computer(HostNode): * Applications: * Web Browser """ - pass + pass diff --git a/src/primaite/simulator/network/hardware/nodes/host/host_node.py b/src/primaite/simulator/network/hardware/nodes/host/host_node.py index bd13e7e2..17390751 100644 --- a/src/primaite/simulator/network/hardware/nodes/host/host_node.py +++ b/src/primaite/simulator/network/hardware/nodes/host/host_node.py @@ -1,15 +1,13 @@ from __future__ import annotations -from typing import Dict, Any -from typing import Optional +from ipaddress import IPv4Address +from typing import Any, Dict, Optional from primaite import getLogger -from primaite.simulator.network.hardware.base import IPWiredNetworkInterface, Link -from primaite.simulator.network.hardware.base import Node +from primaite.simulator.network.hardware.base import IPWiredNetworkInterface, Link, Node from primaite.simulator.network.hardware.node_operating_state import NodeOperatingState from primaite.simulator.network.transmission.data_link_layer import Frame from primaite.simulator.system.applications.web_browser import WebBrowser -from primaite.simulator.system.core.packet_capture import PacketCapture from primaite.simulator.system.services.arp.arp import ARP, ARPPacket from primaite.simulator.system.services.dns.dns_client import DNSClient from primaite.simulator.system.services.ftp.ftp_client import FTPClient @@ -20,43 +18,45 @@ from primaite.utils.validators import IPV4Address _LOGGER = getLogger(__name__) -# Lives here due to pydantic circular dependency issue :( class HostARP(ARP): """ The Host ARP Service. - Extends the ARP service with functionalities specific to a host within the network. It provides mechanisms to - resolve and cache MAC addresses and NICs for given IP addresses, focusing on the host's perspective, including - handling the default gateway. + Extends the ARP service for host-specific functionalities within a network, focusing on resolving and caching + MAC addresses and network interfaces (NICs) based on IP addresses, especially concerning the default gateway. + + This specialized ARP service for hosts facilitates efficient network communication by managing ARP entries + and handling ARP requests and replies with additional logic for default gateway processing. """ def get_default_gateway_mac_address(self) -> Optional[str]: """ - Retrieves the MAC address of the default gateway from the ARP cache. + Retrieves the MAC address of the default gateway as known from the ARP cache. - :return: The MAC address of the default gateway if it exists in the ARP cache, otherwise None. + :return: The MAC address of the default gateway if present in the ARP cache; otherwise, None. """ if self.software_manager.node.default_gateway: return self.get_arp_cache_mac_address(self.software_manager.node.default_gateway) def get_default_gateway_network_interface(self) -> Optional[NIC]: """ - Retrieves the NIC associated with the default gateway from the ARP cache. + Obtains the network interface card (NIC) associated with the default gateway from the ARP cache. - :return: The NIC associated with the default gateway if it exists in the ARP cache, otherwise None. + :return: The NIC associated with the default gateway if it exists in the ARP cache; otherwise, None. """ if self.software_manager.node.default_gateway and self.software_manager.node.has_enabled_network_interface: return self.get_arp_cache_network_interface(self.software_manager.node.default_gateway) def _get_arp_cache_mac_address( - self, ip_address: IPV4Address, is_reattempt: bool = False, is_default_gateway_attempt: bool = False + self, ip_address: IPV4Address, is_reattempt: bool = False, is_default_gateway_attempt: bool = False ) -> Optional[str]: """ Internal method to retrieve the MAC address associated with an IP address from the ARP cache. :param ip_address: The IP address whose MAC address is to be retrieved. :param is_reattempt: Indicates if this call is a reattempt after a failed initial attempt. - :param is_default_gateway_attempt: Indicates if this call is an attempt to get the default gateway's MAC address. + :param is_default_gateway_attempt: Indicates if this call is an attempt to get the default gateway's MAC + address. :return: The MAC address associated with the IP address if found, otherwise None. """ arp_entry = self.arp.get(ip_address) @@ -76,22 +76,23 @@ class HostARP(ARP): if not is_default_gateway_attempt: self.send_arp_request(self.software_manager.node.default_gateway) return self._get_arp_cache_mac_address( - ip_address=self.software_manager.node.default_gateway, is_reattempt=True, - is_default_gateway_attempt=True + ip_address=self.software_manager.node.default_gateway, + is_reattempt=True, + is_default_gateway_attempt=True, ) return None - def get_arp_cache_mac_address(self, ip_address: IPV4Address) -> Optional[str]: + def get_arp_cache_mac_address(self, ip_address: IPv4Address) -> Optional[str]: """ - Retrieves the MAC address associated with an IP address from the ARP cache. + Retrieves the MAC address associated with a given IP address from the ARP cache. - :param ip_address: The IP address whose MAC address is to be retrieved. - :return: The MAC address associated with the IP address if found, otherwise None. - """ + :param ip_address: The IP address for which the MAC address is sought. + :return: The MAC address if available in the ARP cache; otherwise, None. + """ return self._get_arp_cache_mac_address(ip_address) def _get_arp_cache_network_interface( - self, ip_address: IPV4Address, is_reattempt: bool = False, is_default_gateway_attempt: bool = False + self, ip_address: IPV4Address, is_reattempt: bool = False, is_default_gateway_attempt: bool = False ) -> Optional[NIC]: """ Internal method to retrieve the NIC associated with an IP address from the ARP cache. @@ -118,17 +119,18 @@ class HostARP(ARP): if not is_default_gateway_attempt: self.send_arp_request(self.software_manager.node.default_gateway) return self._get_arp_cache_network_interface( - ip_address=self.software_manager.node.default_gateway, is_reattempt=True, - is_default_gateway_attempt=True + ip_address=self.software_manager.node.default_gateway, + is_reattempt=True, + is_default_gateway_attempt=True, ) return None - def get_arp_cache_network_interface(self, ip_address: IPV4Address) -> Optional[NIC]: + def get_arp_cache_network_interface(self, ip_address: IPv4Address) -> Optional[NIC]: """ - Retrieves the NIC associated with an IP address from the ARP cache. + Retrieves the network interface card (NIC) associated with a given IP address from the ARP cache. - :param ip_address: The IP address whose NIC is to be retrieved. - :return: The NIC associated with the IP address if found, otherwise None. + :param ip_address: The IP address for which the associated NIC is sought. + :return: The NIC if available in the ARP cache; otherwise, None. """ return self._get_arp_cache_network_interface(ip_address) @@ -146,15 +148,17 @@ class HostARP(ARP): # Unmatched ARP Request if arp_packet.target_ip_address != from_network_interface.ip_address: self.sys_log.info( - f"Ignoring ARP request for {arp_packet.target_ip_address}. Current IP address is {from_network_interface.ip_address}" + f"Ignoring ARP request for {arp_packet.target_ip_address}. Current IP address is " + f"{from_network_interface.ip_address}" ) return # Matched ARP request # TODO: try taking this out self.add_arp_cache_entry( - ip_address=arp_packet.sender_ip_address, mac_address=arp_packet.sender_mac_addr, - network_interface=from_network_interface + ip_address=arp_packet.sender_ip_address, + mac_address=arp_packet.sender_mac_addr, + network_interface=from_network_interface, ) arp_packet = arp_packet.generate_reply(from_network_interface.mac_address) self.send_arp_reply(arp_packet) @@ -175,12 +179,25 @@ class NIC(IPWiredNetworkInterface): and disconnect from network links and to manage the enabled/disabled state of the interface. - Layer3Interface: Provides properties for Layer 3 network configuration, such as IP address and subnet mask. """ + _connected_link: Optional[Link] = None "The network link to which the network interface is connected." wake_on_lan: bool = False "Indicates if the NIC supports Wake-on-LAN functionality." def model_post_init(self, __context: Any) -> None: + """ + Performs post-initialisation checks to ensure the model's IP configuration is valid. + + This method is invoked after the initialisation of a network model object to validate its network settings, + particularly to ensure that the assigned IP address is not a network address. This validation is crucial for + maintaining the integrity of network simulations and avoiding configuration errors that could lead to + unrealistic or incorrect behavior. + + :param __context: Contextual information or parameters passed to the method, used for further initializing or + validating the model post-creation. + :raises ValueError: If the IP address is the same as the network address, indicating an incorrect configuration. + """ if self.ip_network.network_address == self.ip_address: raise ValueError(f"{self.ip_address}/{self.subnet_mask} must not be a network address") @@ -255,21 +272,24 @@ class HostNode(Node): """ Represents a host node in the network. - Extends the basic functionality of a Node with host-specific services and applications. A host node typically - represents an end-user device in the network, such as a Computer or a Server, and is capable of initiating and - responding to network communications. + An end-user device within the network, such as a computer or server, equipped with the capability to initiate and + respond to network communications. + + A `HostNode` extends the base `Node` class by incorporating host-specific services and applications, thereby + simulating the functionalities typically expected from a networked end-user device. + + **Example**:: - Example: >>> pc_a = HostNode( - hostname="pc_a", - ip_address="192.168.1.10", - subnet_mask="255.255.255.0", - default_gateway="192.168.1.1" - ) + ... hostname="pc_a", + ... ip_address="192.168.1.10", + ... subnet_mask="255.255.255.0", + ... default_gateway="192.168.1.1" + ... ) >>> pc_a.power_on() - The host comes pre-installed with core functionalities and a suite of services and applications, making it ready - for various network operations and tasks. These include: + The host node comes pre-equipped with a range of core functionalities, services, and applications necessary + for engaging in various network operations and tasks. Core Functionality: ------------------- @@ -291,6 +311,7 @@ class HostNode(Node): * Web Browser: Provides web browsing capabilities. """ + network_interfaces: Dict[str, NIC] = {} "The Network Interfaces on the node." network_interface: Dict[int, NIC] = {} @@ -301,7 +322,12 @@ class HostNode(Node): self.connect_nic(NIC(ip_address=ip_address, subnet_mask=subnet_mask)) def _install_system_software(self): - """Install System Software - software that is usually provided with the OS.""" + """ + Installs the system software and network services typically found on an operating system. + + This method equips the host with essential network services and applications, preparing it for various + network-related tasks and operations. + """ # ARP Service self.software_manager.install(HostARP) @@ -323,6 +349,12 @@ class HostNode(Node): super()._install_system_software() def default_gateway_hello(self): + """ + Sends a hello message to the default gateway to establish connectivity and resolve the gateway's MAC address. + + This method is invoked to ensure the host node can communicate with its default gateway, primarily to confirm + network connectivity and populate the ARP cache with the gateway's MAC address. + """ if self.operating_state == NodeOperatingState.ON and self.default_gateway: self.software_manager.arp.get_default_gateway_mac_address() diff --git a/src/primaite/simulator/network/hardware/nodes/host/server.py b/src/primaite/simulator/network/hardware/nodes/host/server.py index 148a277f..9f5157ad 100644 --- a/src/primaite/simulator/network/hardware/nodes/host/server.py +++ b/src/primaite/simulator/network/hardware/nodes/host/server.py @@ -28,4 +28,3 @@ class Server(HostNode): * Applications: * Web Browser """ - diff --git a/src/primaite/simulator/network/hardware/nodes/network/network_node.py b/src/primaite/simulator/network/hardware/nodes/network/network_node.py index c7a2060b..ebdb6ed8 100644 --- a/src/primaite/simulator/network/hardware/nodes/network/network_node.py +++ b/src/primaite/simulator/network/hardware/nodes/network/network_node.py @@ -1,9 +1,30 @@ -from primaite.simulator.network.hardware.base import Node, NetworkInterface +from abc import abstractmethod + +from primaite.simulator.network.hardware.base import NetworkInterface, Node from primaite.simulator.network.transmission.data_link_layer import Frame class NetworkNode(Node): - """""" + """ + Represents an abstract base class for a network node that can receive and process network frames. + This class provides a common interface for network nodes such as routers and switches, defining the essential + behavior that allows these devices to handle incoming network traffic. Implementations of this class must + provide functionality for receiving and processing frames received on their network interfaces. + """ + + @abstractmethod def receive_frame(self, frame: Frame, from_network_interface: NetworkInterface): + """ + Abstract method that must be implemented by subclasses to define how to receive and process frames. + + This method is called when a frame is received by a network interface belonging to this node. Subclasses + should implement the logic to process the frame, including examining its contents, making forwarding decisions, + or performing any necessary actions based on the frame's protocol and destination. + + :param frame: The network frame that has been received. + :type frame: Frame + :param from_network_interface: The network interface on which the frame was received. + :type from_network_interface: NetworkInterface + """ pass diff --git a/src/primaite/simulator/network/hardware/nodes/network/router.py b/src/primaite/simulator/network/hardware/nodes/network/router.py index e5f4cdcd..3a22931e 100644 --- a/src/primaite/simulator/network/hardware/nodes/network/router.py +++ b/src/primaite/simulator/network/hardware/nodes/network/router.py @@ -3,25 +3,22 @@ from __future__ import annotations import secrets from enum import Enum from ipaddress import IPv4Address, IPv4Network -from typing import Dict, Any -from typing import List, Optional, Tuple, Union +from typing import Any, Dict, List, Optional, Tuple, Union from prettytable import MARKDOWN, PrettyTable -from pydantic import ValidationError from primaite.simulator.core import RequestManager, RequestType, SimComponent from primaite.simulator.network.hardware.base import IPWiredNetworkInterface from primaite.simulator.network.hardware.node_operating_state import NodeOperatingState from primaite.simulator.network.hardware.nodes.network.network_node import NetworkNode from primaite.simulator.network.protocols.arp import ARPPacket -from primaite.simulator.network.protocols.icmp import ICMPType, ICMPPacket +from primaite.simulator.network.protocols.icmp import ICMPPacket, ICMPType from primaite.simulator.network.transmission.data_link_layer import Frame from primaite.simulator.network.transmission.network_layer import IPProtocol from primaite.simulator.network.transmission.transport_layer import Port from primaite.simulator.system.core.sys_log import SysLog from primaite.simulator.system.services.arp.arp import ARP from primaite.simulator.system.services.icmp.icmp import ICMP -from primaite.utils.validators import IPV4Address class ACLAction(Enum): @@ -205,14 +202,14 @@ class AccessControlList(SimComponent): return self._acl def add_rule( - self, - action: ACLAction, - protocol: Optional[IPProtocol] = None, - src_ip_address: Optional[Union[str, IPv4Address]] = None, - src_port: Optional[Port] = None, - dst_ip_address: Optional[Union[str, IPv4Address]] = None, - dst_port: Optional[Port] = None, - position: int = 0, + self, + action: ACLAction, + protocol: Optional[IPProtocol] = None, + src_ip_address: Optional[Union[str, IPv4Address]] = None, + src_port: Optional[Port] = None, + dst_ip_address: Optional[Union[str, IPv4Address]] = None, + dst_port: Optional[Port] = None, + position: int = 0, ) -> None: """ Add a new ACL rule. @@ -259,12 +256,12 @@ class AccessControlList(SimComponent): raise ValueError(f"Cannot remove ACL rule, position {position} is out of bounds.") def is_permitted( - self, - protocol: IPProtocol, - src_ip_address: Union[str, IPv4Address], - src_port: Optional[Port], - dst_ip_address: Union[str, IPv4Address], - dst_port: Optional[Port], + self, + protocol: IPProtocol, + src_ip_address: Union[str, IPv4Address], + src_port: Optional[Port], + dst_ip_address: Union[str, IPv4Address], + dst_port: Optional[Port], ) -> Tuple[bool, Optional[Union[str, ACLRule]]]: """ Check if a packet with the given properties is permitted through the ACL. @@ -286,23 +283,23 @@ class AccessControlList(SimComponent): continue if ( - (rule.src_ip_address == src_ip_address or rule.src_ip_address is None) - and (rule.dst_ip_address == dst_ip_address or rule.dst_ip_address is None) - and (rule.protocol == protocol or rule.protocol is None) - and (rule.src_port == src_port or rule.src_port is None) - and (rule.dst_port == dst_port or rule.dst_port is None) + (rule.src_ip_address == src_ip_address or rule.src_ip_address is None) + and (rule.dst_ip_address == dst_ip_address or rule.dst_ip_address is None) + and (rule.protocol == protocol or rule.protocol is None) + and (rule.src_port == src_port or rule.src_port is None) + and (rule.dst_port == dst_port or rule.dst_port is None) ): return rule.action == ACLAction.PERMIT, rule return self.implicit_action == ACLAction.PERMIT, f"Implicit {self.implicit_action.name}" def get_relevant_rules( - self, - protocol: IPProtocol, - src_ip_address: Union[str, IPv4Address], - src_port: Port, - dst_ip_address: Union[str, IPv4Address], - dst_port: Port, + self, + protocol: IPProtocol, + src_ip_address: Union[str, IPv4Address], + src_port: Port, + dst_ip_address: Union[str, IPv4Address], + dst_port: Port, ) -> List[ACLRule]: """ Get the list of relevant rules for a packet with given properties. @@ -324,11 +321,11 @@ class AccessControlList(SimComponent): continue if ( - (rule.src_ip_address == src_ip_address or rule.src_ip_address is None) - or (rule.dst_ip_address == dst_ip_address or rule.dst_ip_address is None) - or (rule.protocol == protocol or rule.protocol is None) - or (rule.src_port == src_port or rule.src_port is None) - or (rule.dst_port == dst_port or rule.dst_port is None) + (rule.src_ip_address == src_ip_address or rule.src_ip_address is None) + or (rule.dst_ip_address == dst_ip_address or rule.dst_ip_address is None) + or (rule.protocol == protocol or rule.protocol is None) + or (rule.src_port == src_port or rule.src_port is None) + or (rule.dst_port == dst_port or rule.dst_port is None) ): relevant_rules.append(rule) @@ -445,11 +442,11 @@ class RouteTable(SimComponent): pass def add_route( - self, - address: Union[IPv4Address, str], - subnet_mask: Union[IPv4Address, str], - next_hop_ip_address: Union[IPv4Address, str], - metric: float = 0.0, + self, + address: Union[IPv4Address, str], + subnet_mask: Union[IPv4Address, str], + next_hop_ip_address: Union[IPv4Address, str], + metric: float = 0.0, ): """ Add a route to the routing table. @@ -539,16 +536,34 @@ class RouteTable(SimComponent): class RouterARP(ARP): """ - Inherits from ARPCache and adds router-specific ARP packet processing. + Extends ARP functionality with router-specific ARP packet processing capabilities. - :ivar SysLog sys_log: A system log for logging messages. - :ivar Router router: The router to which this ARP cache belongs. + This class is designed to manage ARP requests and replies within a router, handling both the resolution of MAC + addresses for IP addresses within the router's networks and the forwarding of ARP requests to other networks + based on routing information. """ + router: Optional[Router] = None def _get_arp_cache_mac_address( - self, ip_address: IPV4Address, is_reattempt: bool = False, is_default_route_attempt: bool = False + self, ip_address: IPv4Address, is_reattempt: bool = False, is_default_route_attempt: bool = False ) -> Optional[str]: + """ + Attempts to retrieve the MAC address associated with the given IP address from the ARP cache. + + If the address is not in the cache, an ARP request may be sent, and the method may reattempt the lookup. + + :param ip_address: The IP address for which to find the corresponding MAC address. + :type ip_address: IPv4Address + :param is_reattempt: Indicates whether this call is a reattempt after a failed initial attempt to find the MAC + address. + :type is_reattempt: bool + :param is_default_route_attempt: Indicates whether the attempt is being made to resolve the MAC address for the + default route. + :type is_default_route_attempt: bool + :return: The MAC address associated with the given IP address, if found; otherwise, None. + :rtype: Optional[str] + """ arp_entry = self.arp.get(ip_address) if arp_entry: @@ -558,9 +573,7 @@ class RouterARP(ARP): if self.router.ip_is_in_router_interface_subnet(ip_address): self.send_arp_request(ip_address) return self._get_arp_cache_mac_address( - ip_address=ip_address, - is_reattempt=True, - is_default_route_attempt=is_default_route_attempt + ip_address=ip_address, is_reattempt=True, is_default_route_attempt=is_default_route_attempt ) route = self.router.route_table.find_best_route(ip_address) @@ -569,7 +582,7 @@ class RouterARP(ARP): return self._get_arp_cache_mac_address( ip_address=route.next_hop_ip_address, is_reattempt=True, - is_default_route_attempt=is_default_route_attempt + is_default_route_attempt=is_default_route_attempt, ) else: if self.router.route_table.default_route: @@ -578,16 +591,40 @@ class RouterARP(ARP): return self._get_arp_cache_mac_address( ip_address=self.router.route_table.default_route.next_hop_ip_address, is_reattempt=True, - is_default_route_attempt=True + is_default_route_attempt=True, ) return None def get_arp_cache_mac_address(self, ip_address: IPv4Address) -> Optional[str]: + """ + Public interface to retrieve the MAC address associated with the given IP address from the ARP cache. + + :param ip_address: The IP address for which to find the corresponding MAC address. + :type ip_address: IPv4Address + :return: The MAC address associated with the given IP address, if found; otherwise, None. + :rtype: Optional[str] + """ return self._get_arp_cache_mac_address(ip_address) def _get_arp_cache_network_interface( - self, ip_address: IPV4Address, is_reattempt: bool = False, is_default_route_attempt: bool = False + self, ip_address: IPv4Address, is_reattempt: bool = False, is_default_route_attempt: bool = False ) -> Optional[RouterInterface]: + """ + Attempts to retrieve the router interface associated with the given IP address. + + If the address is not directly associated with a router interface, it may send an ARP request based on + routing information. + + :param ip_address: The IP address for which to find the corresponding router interface. + :type ip_address: IPv4Address + :param is_reattempt: Indicates whether this call is a reattempt after a failed initial attempt. + :type is_reattempt: bool + :param is_default_route_attempt: Indicates whether the attempt is being made for the default route's next-hop + IP address. + :type is_default_route_attempt: bool + :return: The router interface associated with the given IP address, if applicable; otherwise, None. + :rtype: Optional[RouterInterface] + """ arp_entry = self.arp.get(ip_address) if arp_entry: return self.software_manager.node.network_interfaces[arp_entry.network_interface_uuid] @@ -603,7 +640,7 @@ class RouterARP(ARP): return self._get_arp_cache_network_interface( ip_address=route.next_hop_ip_address, is_reattempt=True, - is_default_route_attempt=is_default_route_attempt + is_default_route_attempt=is_default_route_attempt, ) else: if self.router.route_table.default_route: @@ -612,17 +649,32 @@ class RouterARP(ARP): return self._get_arp_cache_network_interface( ip_address=self.router.route_table.default_route.next_hop_ip_address, is_reattempt=True, - is_default_route_attempt=True + is_default_route_attempt=True, ) return None - - def get_arp_cache_network_interface(self, ip_address: IPv4Address) -> Optional[RouterInterface]: + """ + Public interface to retrieve the router interface associated with the given IP address. - return self._get_arp_cache_network_interface(ip_address) + :param ip_address: The IP address for which to find the corresponding router interface. + :type ip_address: IPv4Address + :return: The router interface associated with the given IP address, if found; otherwise, None. + :rtype: Optional[RouterInterface] + """ + return self._get_arp_cache_network_interface(ip_address) def _process_arp_request(self, arp_packet: ARPPacket, from_network_interface: RouterInterface): + """ + Processes an ARP request packet received on a router interface. + + If the target IP address matches the interface's IP address, generates and sends an ARP reply. + + :param arp_packet: The received ARP request packet. + :type arp_packet: ARPPacket + :param from_network_interface: The router interface on which the ARP request was received. + :type from_network_interface: RouterInterface + """ super()._process_arp_request(arp_packet, from_network_interface) # If the target IP matches one of the router's NICs @@ -632,6 +684,14 @@ class RouterARP(ARP): return def _process_arp_reply(self, arp_packet: ARPPacket, from_network_interface: RouterInterface): + """ + Processes an ARP reply packet received on a router interface. Updates the ARP cache with the new information. + + :param arp_packet: The received ARP reply packet. + :type arp_packet: ARPPacket + :param from_network_interface: The router interface on which the ARP reply was received. + :type from_network_interface: RouterInterface + """ if arp_packet.target_ip_address == from_network_interface.ip_address: super()._process_arp_reply(arp_packet, from_network_interface) @@ -650,7 +710,7 @@ class RouterICMP(ICMP): router: Optional[Router] = None - def _process_icmp_echo_request(self, frame: Frame, from_network_interface): + def _process_icmp_echo_request(self, frame: Frame, from_network_interface: RouterInterface): """ Processes an ICMP echo request received by the service. @@ -664,7 +724,8 @@ class RouterICMP(ICMP): if not network_interface: self.sys_log.error( - "Cannot send ICMP echo reply as there is no outbound Network Interface to use. Try configuring the default gateway." + "Cannot send ICMP echo reply as there is no outbound Network Interface to use. Try configuring the " + "default gateway." ) return @@ -682,7 +743,7 @@ class RouterICMP(ICMP): dst_ip_address=frame.ip.src_ip_address, dst_port=self.port, ip_protocol=self.protocol, - icmp_packet=icmp_packet + icmp_packet=icmp_packet, ) def receive(self, payload: Any, session_id: str, **kwargs) -> bool: @@ -815,11 +876,19 @@ class RouterInterface(IPWiredNetworkInterface): class Router(NetworkNode): """ - A class to represent a network router node. + Represents a network router, managing routing and forwarding of IP packets across network interfaces. - :ivar str hostname: The name of the router node. - :ivar int num_ports: The number of ports in the router. - :ivar dict kwargs: Optional keyword arguments for SysLog, ACL, RouteTable, RouterARP, RouterICMP. + A router operates at the network layer and is responsible for receiving, processing, and forwarding data packets + between computer networks. It examines the destination IP address of incoming packets and determines the best way + to route them towards their destination. + + The router integrates various network services and protocols to facilitate IP routing, including ARP (Address + Resolution Protocol) and ICMP (Internet Control Message Protocol) for handling network diagnostics and errors. + + :ivar str hostname: The name of the router, used for identification and logging. + :ivar int num_ports: The number of physical or logical ports on the router. + :ivar dict kwargs: Optional keyword arguments for initializing components like SysLog, ACL (Access Control List), + RouteTable, RouterARP, and RouterICMP services. """ num_ports: int @@ -848,7 +917,13 @@ class Router(NetworkNode): self.set_original_state() def _install_system_software(self): - """Install System Software - software that is usually provided with the OS.""" + """ + Installs essential system software and network services on the router. + + This includes initializing and setting up RouterICMP for handling ICMP packets and RouterARP for address + resolution within the network. These services are crucial for the router's operation, enabling it to manage + network traffic efficiently. + """ self.software_manager.install(RouterICMP) icmp: RouterICMP = self.software_manager.icmp # noqa icmp.router = self @@ -857,11 +932,22 @@ class Router(NetworkNode): arp.router = self def _set_default_acl(self): + """ + Sets default access control rules for the router. + + Initializes the router's ACL (Access Control List) with default rules, permitting essential protocols like ARP + and ICMP, which are necessary for basic network operations and diagnostics. + """ self.acl.add_rule(action=ACLAction.PERMIT, src_port=Port.ARP, dst_port=Port.ARP, position=22) self.acl.add_rule(action=ACLAction.PERMIT, protocol=IPProtocol.ICMP, position=23) def set_original_state(self): - """Sets the original state.""" + """ + Sets or resets the router to its original configuration state. + + This method is called to initialize the router's state or to revert it to a known good configuration during + network simulations or after configuration changes. + """ self.acl.set_original_state() self.route_table.set_original_state() super().set_original_state() @@ -869,7 +955,14 @@ class Router(NetworkNode): self._original_state.update(self.model_dump(include=vals_to_include)) def reset_component_for_episode(self, episode: int): - """Reset the original state of the SimComponent.""" + """ + Resets the router's components for a new network simulation episode. + + Clears ARP cache, resets ACL and route table to their original states, and re-enables all network interfaces. + This ensures that the router starts from a clean state for each simulation episode. + + :param episode: The episode number for which the router is being reset. + """ self.software_manager.arp.clear() self.acl.reset_component_for_episode(episode) self.route_table.reset_component_for_episode(episode) @@ -884,7 +977,14 @@ class Router(NetworkNode): rm.add_request("acl", RequestType(func=self.acl._request_manager)) return rm - def ip_is_router_interface(self, ip_address: IPV4Address, enabled_only: bool = False) -> bool: + def ip_is_router_interface(self, ip_address: IPv4Address, enabled_only: bool = False) -> bool: + """ + Checks if a given IP address belongs to any of the router's interfaces. + + :param ip_address: The IP address to check. + :param enabled_only: If True, only considers enabled network interfaces. + :return: True if the IP address is assigned to one of the router's interfaces; False otherwise. + """ for router_interface in self.network_interface.values(): if router_interface.ip_address == ip_address: if enabled_only: @@ -893,7 +993,14 @@ class Router(NetworkNode): return True return False - def ip_is_in_router_interface_subnet(self, ip_address: IPV4Address, enabled_only: bool = False) -> bool: + def ip_is_in_router_interface_subnet(self, ip_address: IPv4Address, enabled_only: bool = False) -> bool: + """ + Determines if a given IP address falls within the subnet of any router interface. + + :param ip_address: The IP address to check. + :param enabled_only: If True, only considers enabled network interfaces. + :return: True if the IP address is within the subnet of any router's interface; False otherwise. + """ for router_interface in self.network_interface.values(): if ip_address in router_interface.ip_network: if enabled_only: @@ -904,10 +1011,10 @@ class Router(NetworkNode): def _get_port_of_nic(self, target_nic: RouterInterface) -> Optional[int]: """ - Retrieve the port number for a given NIC. + Retrieves the port number associated with a given network interface controller (NIC). - :param target_nic: Target network interface. - :return: The port number if NIC is found, otherwise None. + :param target_nic: The NIC whose port number is being queried. + :return: The port number if the NIC is found; otherwise, None. """ for port, network_interface in self.network_interface.items(): if network_interface == target_nic: @@ -926,12 +1033,14 @@ class Router(NetworkNode): def receive_frame(self, frame: Frame, from_network_interface: RouterInterface): """ - Receive a frame from a RouterInterface and processes it based on its protocol. + Processes an incoming frame received on one of the router's interfaces. - :param frame: The incoming frame. - :param from_network_interface: The network interface where the frame is coming from. + Examines the frame's destination and protocol, applies ACL rules, and either forwards or drops the frame based + on routing decisions and ACL permissions. + + :param frame: The incoming frame to be processed. + :param from_network_interface: The router interface on which the frame was received. """ - if self.operating_state != NodeOperatingState.ON: return @@ -965,12 +1074,13 @@ class Router(NetworkNode): self.software_manager.arp.add_arp_cache_entry( ip_address=frame.ip.src_ip_address, mac_address=frame.ethernet.src_mac_addr, - network_interface=from_network_interface + network_interface=from_network_interface, ) send_to_session_manager = False - if ((frame.icmp and self.ip_is_router_interface(dst_ip_address)) - or (dst_port in self.software_manager.get_open_ports())): + if (frame.icmp and self.ip_is_router_interface(dst_ip_address)) or ( + dst_port in self.software_manager.get_open_ports() + ): send_to_session_manager = True if send_to_session_manager: @@ -981,17 +1091,20 @@ class Router(NetworkNode): def process_frame(self, frame: Frame, from_network_interface: RouterInterface) -> None: """ - Process a Frame. + Routes or forwards a frame based on the router's routing table and interface configurations. - :param frame: The frame to be routed. - :param from_network_interface: The source network interface. + This method is called if a frame is not directly addressed to the router or does not match any open service + ports. It determines the next hop for the frame and forwards it accordingly. + + :param frame: The frame to be routed or forwarded. + :param from_network_interface: The network interface from which the frame originated. """ # check if frame is addressed to this Router but has failed to be received by a service of application at the # receive_frame stage if frame.ip: for network_interface in self.network_interfaces.values(): if network_interface.ip_address == frame.ip.dst_ip_address: - self.sys_log.info(f"Dropping frame destined for this router on a port that isn't open.") + self.sys_log.info("Dropping frame destined for this router on a port that isn't open.") return network_interface: RouterInterface = self.software_manager.arp.get_arp_cache_network_interface( @@ -1031,6 +1144,15 @@ class Router(NetworkNode): self.route_frame(frame, from_network_interface) def route_frame(self, frame: Frame, from_network_interface: RouterInterface) -> None: + """ + Determines the best route for a frame and forwards it towards its destination. + + Uses the router's routing table to find the best route for the frame's destination IP address and forwards the + frame through the appropriate interface. + + :param frame: The frame to be routed. + :param from_network_interface: The source network interface. + """ route = self.route_table.find_best_route(frame.ip.dst_ip_address) if route: network_interface = self.software_manager.arp.get_arp_cache_network_interface(route.next_hop_ip_address) @@ -1059,11 +1181,11 @@ class Router(NetworkNode): def configure_port(self, port: int, ip_address: Union[IPv4Address, str], subnet_mask: Union[IPv4Address, str]): """ - Configure the IP settings of a given port. + Configures the IP settings for a specified router port. - :param port: The port to configure. - :param ip_address: The IP address to set. - :param subnet_mask: The subnet mask to set. + :param port: The port number to configure. + :param ip_address: The IP address to assign to the port. + :param subnet_mask: The subnet mask for the port. """ if not isinstance(ip_address, IPv4Address): ip_address = IPv4Address(ip_address) @@ -1072,16 +1194,14 @@ class Router(NetworkNode): network_interface = self.network_interface[port] network_interface.ip_address = ip_address network_interface.subnet_mask = subnet_mask - self.sys_log.info( - f"Configured Network Interface {network_interface}" - ) + self.sys_log.info(f"Configured Network Interface {network_interface}") self.set_original_state() def enable_port(self, port: int): """ - Enable a given port on the router. + Enables a specified port on the router. - :param port: The port to enable. + :param port: The port number to enable. """ network_interface = self.network_interface.get(port) if network_interface: @@ -1089,9 +1209,9 @@ class Router(NetworkNode): def disable_port(self, port: int): """ - Disable a given port on the router. + Disables a specified port on the router. - :param port: The port to disable. + :param port: The port number to disable. """ network_interface = self.network_interface.get(port) if network_interface: diff --git a/src/primaite/simulator/network/hardware/nodes/network/switch.py b/src/primaite/simulator/network/hardware/nodes/network/switch.py index 1878aab7..33e6ee9a 100644 --- a/src/primaite/simulator/network/hardware/nodes/network/switch.py +++ b/src/primaite/simulator/network/hardware/nodes/network/switch.py @@ -1,11 +1,12 @@ from __future__ import annotations + from typing import Dict, Optional from prettytable import MARKDOWN, PrettyTable from primaite import getLogger from primaite.exceptions import NetworkError -from primaite.simulator.network.hardware.base import WiredNetworkInterface, NetworkInterface, Link +from primaite.simulator.network.hardware.base import Link, WiredNetworkInterface from primaite.simulator.network.hardware.nodes.network.network_node import NetworkNode from primaite.simulator.network.transmission.data_link_layer import Frame @@ -27,6 +28,7 @@ class SwitchPort(WiredNetworkInterface): Switch ports typically do not have IP addresses assigned to them as they function at Layer 2, but managed switches can have management IP addresses for remote management and configuration purposes. """ + _connected_node: Optional[Switch] = None "The Switch to which the SwitchPort is connected." @@ -40,7 +42,6 @@ class SwitchPort(WiredNetworkInterface): """ Produce a dictionary describing the current state of this object. - :return: Current state of this object and child objects. :rtype: Dict """ diff --git a/src/primaite/simulator/network/networks.py b/src/primaite/simulator/network/networks.py index f830ad70..f82dee4a 100644 --- a/src/primaite/simulator/network/networks.py +++ b/src/primaite/simulator/network/networks.py @@ -1,11 +1,10 @@ from ipaddress import IPv4Address from primaite.simulator.network.container import Network -from primaite.simulator.network.hardware.base import NodeOperatingState from primaite.simulator.network.hardware.nodes.host.computer import Computer from primaite.simulator.network.hardware.nodes.host.host_node import NIC -from primaite.simulator.network.hardware.nodes.network.router import ACLAction, Router from primaite.simulator.network.hardware.nodes.host.server import Server +from primaite.simulator.network.hardware.nodes.network.router import ACLAction, Router from primaite.simulator.network.hardware.nodes.network.switch import Switch from primaite.simulator.network.transmission.network_layer import IPProtocol from primaite.simulator.network.transmission.transport_layer import Port @@ -56,7 +55,7 @@ def client_server_routed() -> Network: ip_address="192.168.2.2", subnet_mask="255.255.255.0", default_gateway="192.168.2.1", - start_up_duration=0 + start_up_duration=0, ) client_1.power_on() network.connect(endpoint_b=client_1.network_interface[1], endpoint_a=switch_2.network_interface[1]) @@ -67,7 +66,7 @@ def client_server_routed() -> Network: ip_address="192.168.1.2", subnet_mask="255.255.255.0", default_gateway="192.168.1.1", - start_up_duration=0 + start_up_duration=0, ) server_1.power_on() network.connect(endpoint_b=server_1.network_interface[1], endpoint_a=switch_1.network_interface[1]) @@ -143,7 +142,7 @@ def arcd_uc2_network() -> Network: subnet_mask="255.255.255.0", default_gateway="192.168.10.1", dns_server=IPv4Address("192.168.1.10"), - start_up_duration=0 + start_up_duration=0, ) client_1.power_on() network.connect(endpoint_b=client_1.network_interface[1], endpoint_a=switch_2.network_interface[1]) @@ -163,7 +162,7 @@ def arcd_uc2_network() -> Network: subnet_mask="255.255.255.0", default_gateway="192.168.10.1", dns_server=IPv4Address("192.168.1.10"), - start_up_duration=0 + start_up_duration=0, ) client_2.power_on() web_browser = client_2.software_manager.software.get("WebBrowser") @@ -176,7 +175,7 @@ def arcd_uc2_network() -> Network: ip_address="192.168.1.10", subnet_mask="255.255.255.0", default_gateway="192.168.1.1", - start_up_duration=0 + start_up_duration=0, ) domain_controller.power_on() domain_controller.software_manager.install(DNSServer) @@ -190,7 +189,7 @@ def arcd_uc2_network() -> Network: subnet_mask="255.255.255.0", default_gateway="192.168.1.1", dns_server=IPv4Address("192.168.1.10"), - start_up_duration=0 + start_up_duration=0, ) database_server.power_on() network.connect(endpoint_b=database_server.network_interface[1], endpoint_a=switch_1.network_interface[3]) @@ -264,7 +263,7 @@ def arcd_uc2_network() -> Network: subnet_mask="255.255.255.0", default_gateway="192.168.1.1", dns_server=IPv4Address("192.168.1.10"), - start_up_duration=0 + start_up_duration=0, ) web_server.power_on() web_server.software_manager.install(DatabaseClient) @@ -288,7 +287,7 @@ def arcd_uc2_network() -> Network: subnet_mask="255.255.255.0", default_gateway="192.168.1.1", dns_server=IPv4Address("192.168.1.10"), - start_up_duration=0 + start_up_duration=0, ) backup_server.power_on() backup_server.software_manager.install(FTPServer) @@ -301,7 +300,7 @@ def arcd_uc2_network() -> Network: subnet_mask="255.255.255.0", default_gateway="192.168.1.1", dns_server=IPv4Address("192.168.1.10"), - start_up_duration=0 + start_up_duration=0, ) security_suite.power_on() network.connect(endpoint_b=security_suite.network_interface[1], endpoint_a=switch_1.network_interface[7]) diff --git a/src/primaite/simulator/network/protocols/icmp.py b/src/primaite/simulator/network/protocols/icmp.py index 9f761393..66215db0 100644 --- a/src/primaite/simulator/network/protocols/icmp.py +++ b/src/primaite/simulator/network/protocols/icmp.py @@ -111,4 +111,4 @@ class ICMPPacket(BaseModel): return description msg = f"No Matching ICMP code for type:{self.icmp_type.name}, code:{self.icmp_code}" _LOGGER.error(msg) - raise ValueError(msg) \ No newline at end of file + raise ValueError(msg) diff --git a/src/primaite/simulator/network/transmission/data_link_layer.py b/src/primaite/simulator/network/transmission/data_link_layer.py index 5c25df01..27d40df0 100644 --- a/src/primaite/simulator/network/transmission/data_link_layer.py +++ b/src/primaite/simulator/network/transmission/data_link_layer.py @@ -4,7 +4,6 @@ from typing import Any, Optional from pydantic import BaseModel from primaite import getLogger -from primaite.simulator.network.protocols.arp import ARPPacket from primaite.simulator.network.protocols.icmp import ICMPPacket from primaite.simulator.network.protocols.packet import DataPacket from primaite.simulator.network.transmission.network_layer import IPPacket, IPProtocol diff --git a/src/primaite/simulator/network/transmission/network_layer.py b/src/primaite/simulator/network/transmission/network_layer.py index 38fc1977..c6328a60 100644 --- a/src/primaite/simulator/network/transmission/network_layer.py +++ b/src/primaite/simulator/network/transmission/network_layer.py @@ -1,10 +1,7 @@ -import secrets from enum import Enum -from ipaddress import IPv4Address, IPv4Network -from typing import Union +from ipaddress import IPv4Address -from pydantic import BaseModel, field_validator, validate_call -from pydantic_core.core_schema import FieldValidationInfo +from pydantic import BaseModel from primaite import getLogger diff --git a/src/primaite/simulator/system/core/packet_capture.py b/src/primaite/simulator/system/core/packet_capture.py index 5d34fd63..3f34cad8 100644 --- a/src/primaite/simulator/system/core/packet_capture.py +++ b/src/primaite/simulator/system/core/packet_capture.py @@ -108,4 +108,3 @@ class PacketCapture: """ msg = frame.model_dump_json() self.outbound_logger.log(level=60, msg=msg) # Log at custom log level > CRITICAL - diff --git a/src/primaite/simulator/system/core/session_manager.py b/src/primaite/simulator/system/core/session_manager.py index 4ef10a14..3fa2aa97 100644 --- a/src/primaite/simulator/system/core/session_manager.py +++ b/src/primaite/simulator/system/core/session_manager.py @@ -102,7 +102,7 @@ class SessionManager: @staticmethod def _get_session_key( - frame: Frame, inbound_frame: bool = True + frame: Frame, inbound_frame: bool = True ) -> Tuple[IPProtocol, IPv4Address, Optional[Port], Optional[Port]]: """ Extracts the session key from the given frame. @@ -140,27 +140,76 @@ class SessionManager: dst_port = None return protocol, with_ip_address, src_port, dst_port - def resolve_outbound_network_interface(self, dst_ip_address: IPv4Address) -> Optional['NetworkInterface']: + def resolve_outbound_network_interface(self, dst_ip_address: IPv4Address) -> Optional["NetworkInterface"]: + """ + Resolves the appropriate outbound network interface for a given destination IP address. + + This method determines the most suitable network interface for sending a packet to the specified + destination IP address. It considers only enabled network interfaces and checks if the destination + IP address falls within the subnet of each interface. If no suitable local network interface is found, + the method defaults to using the network interface associated with the default gateway. + + The search process prioritises local network interfaces based on the IP network to which they belong. + If the destination IP address does not match any local subnet, the method assumes that the destination + is outside the local network and hence, routes the packet through the default gateway's network interface. + + :param dst_ip_address: The destination IP address for which the outbound interface is to be resolved. + :type dst_ip_address: IPv4Address + :return: The network interface through which the packet should be sent to reach the destination IP address, + or the default gateway's network interface if the destination is not within any local subnet. + :rtype: Optional["NetworkInterface"] + """ for network_interface in self.node.network_interfaces.values(): if dst_ip_address in network_interface.ip_network and network_interface.enabled: return network_interface return self.software_manager.arp.get_default_gateway_network_interface() def resolve_outbound_transmission_details( - self, - dst_ip_address: Optional[Union[IPv4Address, IPv4Network]] = None, - src_port: Optional[Port] = None, - dst_port: Optional[Port] = None, - protocol: Optional[IPProtocol] = None, - session_id: Optional[str] = None + self, + dst_ip_address: Optional[Union[IPv4Address, IPv4Network]] = None, + src_port: Optional[Port] = None, + dst_port: Optional[Port] = None, + protocol: Optional[IPProtocol] = None, + session_id: Optional[str] = None, ) -> Tuple[ - Optional['NetworkInterface'], - Optional[str], IPv4Address, + Optional["NetworkInterface"], + Optional[str], + IPv4Address, Optional[Port], Optional[Port], Optional[IPProtocol], - bool + bool, ]: + """ + Resolves the necessary details for outbound transmission based on the provided parameters. + + This method determines whether the payload should be broadcast or unicast based on the destination IP address + and resolves the outbound network interface and destination MAC address accordingly. + + The method first checks if `session_id` is provided and uses the session details if available. For broadcast + transmissions, it finds a suitable network interface and uses a broadcast MAC address. For unicast + transmissions, it attempts to resolve the destination MAC address using ARP and finds the appropriate + outbound network interface. If the destination IP address is outside the local network and no specific MAC + address is resolved, it uses the default gateway for the transmission. + + :param dst_ip_address: The destination IP address or network. If an IPv4Network is provided, the method + treats the transmission as a broadcast to that network. Optional. + :type dst_ip_address: Optional[Union[IPv4Address, IPv4Network]] + :param src_port: The source port number for the transmission. Optional. + :type src_port: Optional[Port] + :param dst_port: The destination port number for the transmission. Optional. + :type dst_port: Optional[Port] + :param protocol: The IP protocol to be used for the transmission. Optional. + :type protocol: Optional[IPProtocol] + :param session_id: The session ID associated with the transmission. If provided, the session details override + other parameters. Optional. + :type session_id: Optional[str] + :return: A tuple containing the resolved outbound network interface, destination MAC address, destination IP + address, source port, destination port, protocol, and a boolean indicating whether the transmission is a + broadcast. + :rtype: Tuple[Optional["NetworkInterface"], Optional[str], IPv4Address, Optional[Port], Optional[Port], + Optional[IPProtocol], bool] + """ if dst_ip_address and not isinstance(dst_ip_address, (IPv4Address, IPv4Network)): dst_ip_address = IPv4Address(dst_ip_address) is_broadcast = False @@ -207,14 +256,14 @@ class SessionManager: return outbound_network_interface, dst_mac_address, dst_ip_address, src_port, dst_port, protocol, is_broadcast def receive_payload_from_software_manager( - self, - payload: Any, - dst_ip_address: Optional[Union[IPv4Address, IPv4Network]] = None, - src_port: Optional[Port] = None, - dst_port: Optional[Port] = None, - session_id: Optional[str] = None, - ip_protocol: IPProtocol = IPProtocol.TCP, - icmp_packet: Optional[ICMPPacket] = None + self, + payload: Any, + dst_ip_address: Optional[Union[IPv4Address, IPv4Network]] = None, + src_port: Optional[Port] = None, + dst_port: Optional[Port] = None, + session_id: Optional[str] = None, + ip_protocol: IPProtocol = IPProtocol.TCP, + icmp_packet: Optional[ICMPPacket] = None, ) -> Union[Any, None]: """ Receive a payload from the SoftwareManager and send it to the appropriate NIC for transmission. @@ -239,15 +288,22 @@ class SessionManager: is_broadcast = payload.request ip_protocol = IPProtocol.UDP else: - vals = self.resolve_outbound_transmission_details( dst_ip_address=dst_ip_address, src_port=src_port, dst_port=dst_port, protocol=ip_protocol, - session_id=session_id + session_id=session_id, ) - outbound_network_interface, dst_mac_address, dst_ip_address, src_port, dst_port, protocol, is_broadcast = vals + ( + outbound_network_interface, + dst_mac_address, + dst_ip_address, + src_port, + dst_port, + protocol, + is_broadcast, + ) = vals if protocol: ip_protocol = protocol @@ -257,7 +313,7 @@ class SessionManager: if not (src_port or dst_port): raise ValueError( - f"Failed to resolve src or dst port. Have you sent the port from the service or application?" + "Failed to resolve src or dst port. Have you sent the port from the service or application?" ) tcp_header = None @@ -283,7 +339,11 @@ class SessionManager: # Construct the frame for transmission frame = Frame( ethernet=EthernetHeader(src_mac_addr=outbound_network_interface.mac_address, dst_mac_addr=dst_mac_address), - ip=IPPacket(src_ip_address=outbound_network_interface.ip_address, dst_ip_address=dst_ip_address, protocol=ip_protocol), + ip=IPPacket( + src_ip_address=outbound_network_interface.ip_address, + dst_ip_address=dst_ip_address, + protocol=ip_protocol, + ), tcp=tcp_header, udp=udp_header, icmp=icmp_packet, @@ -304,7 +364,7 @@ class SessionManager: # Send the frame through the NIC return outbound_network_interface.send_frame(frame) - def receive_frame(self, frame: Frame, from_network_interface: 'NetworkInterface'): + def receive_frame(self, frame: Frame, from_network_interface: "NetworkInterface"): """ Receive a Frame. @@ -334,7 +394,7 @@ class SessionManager: protocol=frame.ip.protocol, session_id=session.uuid, from_network_interface=from_network_interface, - frame=frame + frame=frame, ) def show(self, markdown: bool = False): diff --git a/src/primaite/simulator/system/core/software_manager.py b/src/primaite/simulator/system/core/software_manager.py index 53725c18..e6fe7b23 100644 --- a/src/primaite/simulator/system/core/software_manager.py +++ b/src/primaite/simulator/system/core/software_manager.py @@ -25,7 +25,14 @@ IOSoftwareClass = TypeVar("IOSoftwareClass", bound=IOSoftware) class SoftwareManager: - """A class that manages all running Services and Applications on a Node and facilitates their communication.""" + """ + Manages all running services and applications on a network node and facilitates their communication. + + This class is responsible for installing, uninstalling, and managing the operational state of various network + services and applications. It acts as a bridge between the node's session manager and its software components, + ensuring that incoming and outgoing network payloads are correctly routed to and from the appropriate services + or applications. + """ def __init__( self, @@ -50,11 +57,13 @@ class SoftwareManager: self.dns_server: Optional[IPv4Address] = dns_server @property - def arp(self) -> 'ARP': + def arp(self) -> "ARP": + """Provides access to the ARP service instance, if installed.""" return self.software.get("ARP") # noqa @property - def icmp(self) -> 'ICMP': + def icmp(self) -> "ICMP": + """Provides access to the ICMP service instance, if installed.""" return self.software.get("ICMP") # noqa def get_open_ports(self) -> List[Port]: @@ -167,7 +176,13 @@ class SoftwareManager: ) def receive_payload_from_session_manager( - self, payload: Any, port: Port, protocol: IPProtocol, session_id: str, from_network_interface: "NIC", frame: Frame + self, + payload: Any, + port: Port, + protocol: IPProtocol, + session_id: str, + from_network_interface: "NIC", + frame: Frame, ): """ Receive a payload from the SessionManager and forward it to the corresponding service or application. @@ -177,7 +192,9 @@ class SoftwareManager: """ receiver: Optional[Union[Service, Application]] = self.port_protocol_mapping.get((port, protocol), None) if receiver: - receiver.receive(payload=payload, session_id=session_id, from_network_interface=from_network_interface, frame=frame) + receiver.receive( + payload=payload, session_id=session_id, from_network_interface=from_network_interface, frame=frame + ) else: self.sys_log.error(f"No service or application found for port {port} and protocol {protocol}") pass @@ -202,7 +219,7 @@ class SoftwareManager: software.operating_state.name, software.health_state_actual.name, software.port.value if software.port != Port.NONE else None, - software.protocol.value + software.protocol.value, ] ) print(table) diff --git a/src/primaite/simulator/system/services/arp/arp.py b/src/primaite/simulator/system/services/arp/arp.py index 6a04e845..ca5b7619 100644 --- a/src/primaite/simulator/system/services/arp/arp.py +++ b/src/primaite/simulator/system/services/arp/arp.py @@ -20,6 +20,7 @@ class ARP(Service): Manages ARP for resolving network layer addresses into link layer addresses. It maintains an ARP cache, sends ARP requests and replies, and processes incoming ARP packets. """ + arp: Dict[IPV4Address, ARPEntry] = {} def __init__(self, **kwargs): @@ -29,6 +30,14 @@ class ARP(Service): super().__init__(**kwargs) def describe_state(self) -> Dict: + """ + Produce a dictionary describing the current state of this object. + + :return: Current state of this object and child objects. + """ + state = super().describe_state() + state.update({str(ip): arp_entry.mac_address for ip, arp_entry in self.arp.items()}) + return super().describe_state() def show(self, markdown: bool = False): @@ -57,11 +66,7 @@ class ARP(Service): self.arp.clear() def add_arp_cache_entry( - self, - ip_address: IPV4Address, - mac_address: str, - network_interface: NetworkInterface, - override: bool = False + self, ip_address: IPV4Address, mac_address: str, network_interface: NetworkInterface, override: bool = False ): """ Add an ARP entry to the cache. @@ -139,7 +144,8 @@ class ARP(Service): ) else: self.sys_log.error( - "Cannot send ARP request as there is no outbound Network Interface to use. Try configuring the default gateway." + "Cannot send ARP request as there is no outbound Network Interface to use. Try configuring the default " + "gateway." ) def send_arp_reply(self, arp_reply: ARPPacket): @@ -147,12 +153,10 @@ class ARP(Service): Sends an ARP reply in response to an ARP request. :param arp_reply: The ARP packet containing the reply. - :param from_network_interface: The NIC from which the ARP reply is sent. """ - outbound_network_interface = self.software_manager.session_manager.resolve_outbound_network_interface( arp_reply.target_ip_address - ) + ) if outbound_network_interface: self.sys_log.info( f"Sending ARP reply from {arp_reply.sender_mac_addr}/{arp_reply.sender_ip_address} " @@ -162,14 +166,14 @@ class ARP(Service): payload=arp_reply, dst_ip_address=arp_reply.target_ip_address, dst_port=self.port, - ip_protocol=self.protocol + ip_protocol=self.protocol, ) else: self.sys_log.error( - "Cannot send ARP reply as there is no outbound Network Interface to use. Try configuring the default gateway." + "Cannot send ARP reply as there is no outbound Network Interface to use. Try configuring the default " + "gateway." ) - @abstractmethod def _process_arp_request(self, arp_packet: ARPPacket, from_network_interface: NetworkInterface): """ @@ -197,7 +201,7 @@ class ARP(Service): self.add_arp_cache_entry( ip_address=arp_packet.sender_ip_address, mac_address=arp_packet.sender_mac_addr, - network_interface=from_network_interface + network_interface=from_network_interface, ) def receive(self, payload: Any, session_id: str, **kwargs) -> bool: diff --git a/src/primaite/simulator/system/services/icmp/icmp.py b/src/primaite/simulator/system/services/icmp/icmp.py index 3ff7b21c..103d1c60 100644 --- a/src/primaite/simulator/system/services/icmp/icmp.py +++ b/src/primaite/simulator/system/services/icmp/icmp.py @@ -1,8 +1,9 @@ import secrets from ipaddress import IPv4Address -from typing import Dict, Any, Union, Optional, Tuple +from typing import Any, Dict, Optional, Tuple, Union from primaite import getLogger +from primaite.simulator.network.hardware.base import NetworkInterface from primaite.simulator.network.protocols.icmp import ICMPPacket, ICMPType from primaite.simulator.network.transmission.data_link_layer import Frame from primaite.simulator.network.transmission.network_layer import IPProtocol @@ -19,6 +20,7 @@ class ICMP(Service): Enables the sending and receiving of ICMP messages such as echo requests and replies. This is typically used for network diagnostics, notably the ping command. """ + request_replies: Dict = {} def __init__(self, **kwargs): @@ -28,7 +30,12 @@ class ICMP(Service): super().__init__(**kwargs) def describe_state(self) -> Dict: - pass + """ + Produce a dictionary describing the current state of this object. + + :return: Current state of this object and child objects. + """ + return super().describe_state() def clear(self): """ @@ -56,9 +63,7 @@ class ICMP(Service): self.sys_log.info(f"Pinging {target_ip_address}:", to_terminal=True) sequence, identifier = 0, None while sequence < pings: - sequence, identifier = self._send_icmp_echo_request( - target_ip_address, sequence, identifier, pings - ) + sequence, identifier = self._send_icmp_echo_request(target_ip_address, sequence, identifier, pings) request_replies = self.software_manager.icmp.request_replies.get(identifier) passed = request_replies == pings if request_replies: @@ -76,7 +81,7 @@ class ICMP(Service): return passed def _send_icmp_echo_request( - self, target_ip_address: IPv4Address, sequence: int = 0, identifier: Optional[int] = None, pings: int = 4 + self, target_ip_address: IPv4Address, sequence: int = 0, identifier: Optional[int] = None, pings: int = 4 ) -> Tuple[int, Union[int, None]]: """ Sends an ICMP echo request to a specified target IP address. @@ -91,7 +96,8 @@ class ICMP(Service): if not network_interface: self.sys_log.error( - "Cannot send ICMP echo request as there is no outbound Network Interface to use. Try configuring the default gateway." + "Cannot send ICMP echo request as there is no outbound Network Interface to use. Try configuring the " + "default gateway." ) return pings, None @@ -105,11 +111,11 @@ class ICMP(Service): dst_ip_address=target_ip_address, dst_port=self.port, ip_protocol=self.protocol, - icmp_packet=icmp_packet + icmp_packet=icmp_packet, ) return sequence, icmp_packet.identifier - def _process_icmp_echo_request(self, frame: Frame, from_network_interface): + def _process_icmp_echo_request(self, frame: Frame, from_network_interface: NetworkInterface): """ Processes an ICMP echo request received by the service. @@ -121,11 +127,12 @@ class ICMP(Service): network_interface = self.software_manager.session_manager.resolve_outbound_network_interface( frame.ip.src_ip_address - ) + ) if not network_interface: self.sys_log.error( - "Cannot send ICMP echo reply as there is no outbound Network Interface to use. Try configuring the default gateway." + "Cannot send ICMP echo reply as there is no outbound Network Interface to use. Try configuring the " + "default gateway." ) return @@ -143,7 +150,7 @@ class ICMP(Service): dst_ip_address=frame.ip.src_ip_address, dst_port=self.port, ip_protocol=self.protocol, - icmp_packet=icmp_packet + icmp_packet=icmp_packet, ) def _process_icmp_echo_reply(self, frame: Frame): @@ -159,7 +166,7 @@ class ICMP(Service): f"bytes={len(frame.payload)}, " f"time={time_str}, " f"TTL={frame.ip.ttl}", - to_terminal=True + to_terminal=True, ) if not self.request_replies.get(frame.icmp.identifier): self.request_replies[frame.icmp.identifier] = 0 diff --git a/src/primaite/simulator/system/services/ntp/ntp_server.py b/src/primaite/simulator/system/services/ntp/ntp_server.py index 8e362880..3987fa2c 100644 --- a/src/primaite/simulator/system/services/ntp/ntp_server.py +++ b/src/primaite/simulator/system/services/ntp/ntp_server.py @@ -70,10 +70,6 @@ class NTPServer(Service): payload = payload.generate_reply(time) # send reply self.software_manager.session_manager.receive_payload_from_software_manager( - payload=payload, - src_port=self.port, - dst_port=self.port, - ip_protocol=self.protocol, - session_id=session_id + payload=payload, src_port=self.port, dst_port=self.port, ip_protocol=self.protocol, session_id=session_id ) return True diff --git a/src/primaite/simulator/system/software.py b/src/primaite/simulator/system/software.py index 91629f9a..ce39930b 100644 --- a/src/primaite/simulator/system/software.py +++ b/src/primaite/simulator/system/software.py @@ -380,7 +380,7 @@ class IOSoftware(Software): dest_ip_address=dest_ip_address, dest_port=dest_port, ip_protocol=ip_protocol, - session_id=session_id + session_id=session_id, ) @abstractmethod diff --git a/src/primaite/utils/validators.py b/src/primaite/utils/validators.py index 13cff653..fb7abb29 100644 --- a/src/primaite/utils/validators.py +++ b/src/primaite/utils/validators.py @@ -1,9 +1,7 @@ from ipaddress import IPv4Address from typing import Any, Final -from pydantic import ( - BeforeValidator, -) +from pydantic import BeforeValidator from typing_extensions import Annotated @@ -30,7 +28,7 @@ def ipv4_validator(v: Any) -> IPv4Address: # with the IPv4Address type, ensuring that any usage of IPV4Address undergoes validation before assignment. IPV4Address: Final[Annotated] = Annotated[IPv4Address, BeforeValidator(ipv4_validator)] """ -IPv4Address with with pre-validation and auto-conversion from str using ipv4_validator. +IPv4Address with with IPv4Address with with pre-validation and auto-conversion from str using ipv4_validator.. This type is essentially an IPv4Address from the standard library's ipaddress module, but with added validation logic. If you use this custom type, the ipv4_validator function diff --git a/tests/conftest.py b/tests/conftest.py index b5226a34..8639cec3 100644 --- a/tests/conftest.py +++ b/tests/conftest.py @@ -5,10 +5,10 @@ from typing import Any, Dict, Tuple, Union import pytest import yaml -from primaite import PRIMAITE_PATHS -from primaite import getLogger +from primaite import getLogger, PRIMAITE_PATHS from primaite.session.session import PrimaiteSession from primaite.simulator.file_system.file_system import FileSystem + # from primaite.environment.primaite_env import Primaite # from primaite.primaite_session import PrimaiteSession from primaite.simulator.network.container import Network @@ -212,31 +212,20 @@ def example_network() -> Network: network = Network() # Router 1 - router_1 = Router( - hostname="router_1", - start_up_duration=0 - ) + router_1 = Router(hostname="router_1", start_up_duration=0) router_1.power_on() router_1.configure_port(port=1, ip_address="192.168.1.1", subnet_mask="255.255.255.0") router_1.configure_port(port=2, ip_address="192.168.10.1", subnet_mask="255.255.255.0") # Switch 1 - switch_1 = Switch( - hostname="switch_1", - num_ports=8, - start_up_duration=0 - ) + switch_1 = Switch(hostname="switch_1", num_ports=8, start_up_duration=0) switch_1.power_on() network.connect(endpoint_a=router_1.network_interface[1], endpoint_b=switch_1.network_interface[8]) router_1.enable_port(1) # Switch 2 - switch_2 = Switch( - hostname="switch_2", - num_ports=8, - start_up_duration=0 - ) + switch_2 = Switch(hostname="switch_2", num_ports=8, start_up_duration=0) switch_2.power_on() network.connect(endpoint_a=router_1.network_interface[2], endpoint_b=switch_2.network_interface[8]) router_1.enable_port(2) @@ -247,7 +236,7 @@ def example_network() -> Network: ip_address="192.168.10.21", subnet_mask="255.255.255.0", default_gateway="192.168.10.1", - start_up_duration=0 + start_up_duration=0, ) client_1.power_on() network.connect(endpoint_b=client_1.network_interface[1], endpoint_a=switch_2.network_interface[1]) @@ -258,7 +247,7 @@ def example_network() -> Network: ip_address="192.168.10.22", subnet_mask="255.255.255.0", default_gateway="192.168.10.1", - start_up_duration=0 + start_up_duration=0, ) client_2.power_on() network.connect(endpoint_b=client_2.network_interface[1], endpoint_a=switch_2.network_interface[2]) @@ -269,7 +258,7 @@ def example_network() -> Network: ip_address="192.168.1.10", subnet_mask="255.255.255.0", default_gateway="192.168.1.1", - start_up_duration=0 + start_up_duration=0, ) server_1.power_on() network.connect(endpoint_b=server_1.network_interface[1], endpoint_a=switch_1.network_interface[1]) @@ -280,7 +269,7 @@ def example_network() -> Network: ip_address="192.168.1.14", subnet_mask="255.255.255.0", default_gateway="192.168.1.1", - start_up_duration=0 + start_up_duration=0, ) server_2.power_on() network.connect(endpoint_b=server_2.network_interface[1], endpoint_a=switch_1.network_interface[2]) @@ -290,5 +279,4 @@ def example_network() -> Network: assert all(link.is_up for link in network.links.values()) - return network diff --git a/tests/integration_tests/network/test_broadcast.py b/tests/integration_tests/network/test_broadcast.py index d6c52acc..6b6deb93 100644 --- a/tests/integration_tests/network/test_broadcast.py +++ b/tests/integration_tests/network/test_broadcast.py @@ -37,12 +37,7 @@ class BroadcastService(Service): def broadcast(self, ip_network: IPv4Network): # Send a broadcast payload to an entire IP network - super().send( - payload="broadcast", - dest_ip_address=ip_network, - dest_port=Port.HTTP, - ip_protocol=self.protocol - ) + super().send(payload="broadcast", dest_ip_address=ip_network, dest_port=Port.HTTP, ip_protocol=self.protocol) class BroadcastClient(Application): diff --git a/tests/integration_tests/network/test_frame_transmission.py b/tests/integration_tests/network/test_frame_transmission.py index 5ba4fe13..eb30a245 100644 --- a/tests/integration_tests/network/test_frame_transmission.py +++ b/tests/integration_tests/network/test_frame_transmission.py @@ -5,7 +5,6 @@ from primaite.simulator.network.hardware.nodes.host.server import Server from primaite.simulator.network.hardware.nodes.network.switch import Switch - def test_node_to_node_ping(): """Tests two Computers are able to ping each other.""" network = Network() diff --git a/tests/integration_tests/network/test_network_creation.py b/tests/integration_tests/network/test_network_creation.py index 6a39e101..5cf36bce 100644 --- a/tests/integration_tests/network/test_network_creation.py +++ b/tests/integration_tests/network/test_network_creation.py @@ -97,7 +97,6 @@ def test_disconnecting_nodes(): net.connect(n1.network_interface[1], n2.network_interface[1]) assert len(net.links) == 1 - link = list(net.links.values())[0] net.remove_link(link) assert link not in net diff --git a/tests/integration_tests/network/test_routing.py b/tests/integration_tests/network/test_routing.py index 02524eab..4ada807f 100644 --- a/tests/integration_tests/network/test_routing.py +++ b/tests/integration_tests/network/test_routing.py @@ -19,7 +19,7 @@ def pc_a_pc_b_router_1() -> Tuple[Computer, Computer, Router]: ip_address="192.168.0.10", subnet_mask="255.255.255.0", default_gateway="192.168.0.1", - start_up_duration=0 + start_up_duration=0, ) pc_a.power_on() @@ -28,7 +28,7 @@ def pc_a_pc_b_router_1() -> Tuple[Computer, Computer, Router]: ip_address="192.168.1.10", subnet_mask="255.255.255.0", default_gateway="192.168.1.1", - start_up_duration=0 + start_up_duration=0, ) pc_b.power_on() diff --git a/tests/integration_tests/system/red_applications/test_dos_bot_and_server.py b/tests/integration_tests/system/red_applications/test_dos_bot_and_server.py index ecf2c5ae..7ab7d104 100644 --- a/tests/integration_tests/system/red_applications/test_dos_bot_and_server.py +++ b/tests/integration_tests/system/red_applications/test_dos_bot_and_server.py @@ -5,8 +5,8 @@ import pytest from primaite.simulator.network.container import Network from primaite.simulator.network.hardware.nodes.host.computer import Computer -from primaite.simulator.network.hardware.nodes.network.router import ACLAction, Router from primaite.simulator.network.hardware.nodes.host.server import Server +from primaite.simulator.network.hardware.nodes.network.router import ACLAction, Router from primaite.simulator.network.transmission.transport_layer import Port from primaite.simulator.system.applications.application import ApplicationOperatingState from primaite.simulator.system.applications.database_client import DatabaseClient diff --git a/tests/integration_tests/system/test_database_on_node.py b/tests/integration_tests/system/test_database_on_node.py index c259501e..e015f9ee 100644 --- a/tests/integration_tests/system/test_database_on_node.py +++ b/tests/integration_tests/system/test_database_on_node.py @@ -16,21 +16,11 @@ from primaite.simulator.system.services.service import ServiceOperatingState @pytest.fixture(scope="function") def peer_to_peer() -> Tuple[Computer, Computer]: network = Network() - node_a = Computer( - hostname="node_a", - ip_address="192.168.0.10", - subnet_mask="255.255.255.0", - start_up_duration=0 - ) + node_a = Computer(hostname="node_a", ip_address="192.168.0.10", subnet_mask="255.255.255.0", start_up_duration=0) node_a.power_on() node_a.software_manager.get_open_ports() - node_b = Computer( - hostname="node_b", - ip_address="192.168.0.11", - subnet_mask="255.255.255.0", - start_up_duration=0 - ) + node_b = Computer(hostname="node_b", ip_address="192.168.0.11", subnet_mask="255.255.255.0", start_up_duration=0) node_b.power_on() network.connect(node_a.network_interface[1], node_b.network_interface[1]) diff --git a/tests/integration_tests/system/test_dns_client_server.py b/tests/integration_tests/system/test_dns_client_server.py index 18988043..78d2035c 100644 --- a/tests/integration_tests/system/test_dns_client_server.py +++ b/tests/integration_tests/system/test_dns_client_server.py @@ -28,7 +28,8 @@ def dns_client_and_dns_server(client_server) -> Tuple[DNSClient, Computer, DNSSe dns_server.start() # register arcd.com as a domain dns_server.dns_register( - domain_name="arcd.com", domain_ip_address=IPv4Address(server.network_interfaces.get(next(iter(server.network_interfaces))).ip_address) + domain_name="arcd.com", + domain_ip_address=IPv4Address(server.network_interfaces.get(next(iter(server.network_interfaces))).ip_address), ) return dns_client, computer, dns_server, server diff --git a/tests/integration_tests/system/test_web_client_server.py b/tests/integration_tests/system/test_web_client_server.py index c809f954..5e3ff544 100644 --- a/tests/integration_tests/system/test_web_client_server.py +++ b/tests/integration_tests/system/test_web_client_server.py @@ -37,7 +37,10 @@ def web_client_and_web_server(client_server) -> Tuple[WebBrowser, Computer, WebS server.software_manager.install(DNSServer) dns_server: DNSServer = server.software_manager.software.get("DNSServer") # register arcd.com to DNS - dns_server.dns_register(domain_name="arcd.com", domain_ip_address=server.network_interfaces[next(iter(server.network_interfaces))].ip_address) + dns_server.dns_register( + domain_name="arcd.com", + domain_ip_address=server.network_interfaces[next(iter(server.network_interfaces))].ip_address, + ) return web_browser, computer, web_server_service, server diff --git a/tests/integration_tests/system/test_web_client_server_and_database.py b/tests/integration_tests/system/test_web_client_server_and_database.py index efb29f41..70846ee8 100644 --- a/tests/integration_tests/system/test_web_client_server_and_database.py +++ b/tests/integration_tests/system/test_web_client_server_and_database.py @@ -5,8 +5,8 @@ import pytest from primaite.simulator.network.hardware.base import Link from primaite.simulator.network.hardware.nodes.host.computer import Computer -from primaite.simulator.network.hardware.nodes.network.router import ACLAction, Router from primaite.simulator.network.hardware.nodes.host.server import Server +from primaite.simulator.network.hardware.nodes.network.router import ACLAction, Router from primaite.simulator.network.transmission.transport_layer import Port from primaite.simulator.system.applications.database_client import DatabaseClient from primaite.simulator.system.applications.web_browser import WebBrowser @@ -85,7 +85,8 @@ def web_client_web_server_database(example_network) -> Tuple[Computer, Server, S dns_server: DNSServer = web_server.software_manager.software.get("DNSServer") # register arcd.com to DNS dns_server.dns_register( - domain_name="arcd.com", domain_ip_address=web_server.network_interfaces[next(iter(web_server.network_interfaces))].ip_address + domain_name="arcd.com", + domain_ip_address=web_server.network_interfaces[next(iter(web_server.network_interfaces))].ip_address, ) # Install DatabaseClient service on web server diff --git a/tests/unit_tests/_primaite/_simulator/_system/_applications/test_database_client.py b/tests/unit_tests/_primaite/_simulator/_system/_applications/test_database_client.py index c7d807e9..5f10ec96 100644 --- a/tests/unit_tests/_primaite/_simulator/_system/_applications/test_database_client.py +++ b/tests/unit_tests/_primaite/_simulator/_system/_applications/test_database_client.py @@ -16,21 +16,13 @@ from primaite.simulator.system.services.database.database_service import Databas def database_client_on_computer() -> Tuple[DatabaseClient, Computer]: network = Network() - db_server = Server( - hostname="db_server", - ip_address="192.168.0.1", - subnet_mask="255.255.255.0", - start_up_duration=0 - ) + db_server = Server(hostname="db_server", ip_address="192.168.0.1", subnet_mask="255.255.255.0", start_up_duration=0) db_server.power_on() db_server.software_manager.install(DatabaseService) db_server.software_manager.software["DatabaseService"].start() db_client = Computer( - hostname="db_client", - ip_address="192.168.0.2", - subnet_mask="255.255.255.0", - start_up_duration=0 + hostname="db_client", ip_address="192.168.0.2", subnet_mask="255.255.255.0", start_up_duration=0 ) db_client.power_on() db_client.software_manager.install(DatabaseClient) @@ -97,6 +89,7 @@ def test_disconnect(database_client_on_computer): assert not database_client.connected + def test_query_when_client_is_closed(database_client_on_computer): """Database client should return False when it is not running.""" database_client, computer = database_client_on_computer diff --git a/tests/unit_tests/_primaite/_simulator/_system/_applications/test_web_browser.py b/tests/unit_tests/_primaite/_simulator/_system/_applications/test_web_browser.py index 05d4a985..d210ff40 100644 --- a/tests/unit_tests/_primaite/_simulator/_system/_applications/test_web_browser.py +++ b/tests/unit_tests/_primaite/_simulator/_system/_applications/test_web_browser.py @@ -16,7 +16,7 @@ def web_browser() -> WebBrowser: ip_address="192.168.1.11", subnet_mask="255.255.255.0", default_gateway="192.168.1.1", - start_up_duration=0 + start_up_duration=0, ) computer.power_on() # Web Browser should be pre-installed in computer diff --git a/tests/unit_tests/_primaite/_simulator/_system/_services/test_dns_server.py b/tests/unit_tests/_primaite/_simulator/_system/_services/test_dns_server.py index 937636a6..9a513396 100644 --- a/tests/unit_tests/_primaite/_simulator/_system/_services/test_dns_server.py +++ b/tests/unit_tests/_primaite/_simulator/_system/_services/test_dns_server.py @@ -9,8 +9,8 @@ from primaite.simulator.network.hardware.nodes.host.computer import Computer from primaite.simulator.network.hardware.nodes.host.server import Server from primaite.simulator.network.transmission.network_layer import IPProtocol from primaite.simulator.network.transmission.transport_layer import Port -from primaite.simulator.system.services.dns.dns_server import DNSServer from primaite.simulator.system.services.dns.dns_client import DNSClient +from primaite.simulator.system.services.dns.dns_server import DNSServer @pytest.fixture(scope="function") @@ -65,6 +65,4 @@ def test_dns_server_receive(dns_server): assert dns_client.check_domain_exists("real-domain.com") is False - - dns_server_service.show() From 1dcb9214afe0dabe9d4a7a5c173b18da87a3f670 Mon Sep 17 00:00:00 2001 From: Czar Echavez Date: Thu, 8 Feb 2024 12:04:49 +0000 Subject: [PATCH 14/39] #2258: Added DoSBot to list of applications --- src/primaite/game/game.py | 11 +++++++---- tests/assets/configs/basic_switched_network.yaml | 8 ++++++++ 2 files changed, 15 insertions(+), 4 deletions(-) diff --git a/src/primaite/game/game.py b/src/primaite/game/game.py index e0ad0384..b03828f1 100644 --- a/src/primaite/game/game.py +++ b/src/primaite/game/game.py @@ -19,6 +19,7 @@ from primaite.simulator.network.hardware.nodes.switch import Switch from primaite.simulator.sim_container import Simulation from primaite.simulator.system.applications.database_client import DatabaseClient from primaite.simulator.system.applications.red_applications.data_manipulation_bot import DataManipulationBot +from primaite.simulator.system.applications.red_applications.dos_bot import DoSBot from primaite.simulator.system.applications.web_browser import WebBrowser from primaite.simulator.system.services.database.database_service import DatabaseService from primaite.simulator.system.services.dns.dns_client import DNSClient @@ -31,10 +32,7 @@ from primaite.simulator.system.services.web_server.web_server import WebServer _LOGGER = getLogger(__name__) -APPLICATION_TYPES_MAPPING = { - "WebBrowser": WebBrowser, - "DataManipulationBot": DataManipulationBot, -} +APPLICATION_TYPES_MAPPING = {"WebBrowser": WebBrowser, "DataManipulationBot": DataManipulationBot, "DoSBot": DoSBot} SERVICE_TYPES_MAPPING = { "DNSClient": DNSClient, @@ -308,6 +306,11 @@ class PrimaiteGame: if "options" in application_cfg: opt = application_cfg["options"] new_application.target_url = opt.get("target_url") + + elif application_type == "DoSBot": + if "options" in application_cfg: + opt = application_cfg["options"] + new_application.target_ip_address = opt.get("target_ip_address") if "nics" in node_cfg: for nic_num, nic_cfg in node_cfg["nics"].items(): new_node.connect_nic(NIC(ip_address=nic_cfg["ip_address"], subnet_mask=nic_cfg["subnet_mask"])) diff --git a/tests/assets/configs/basic_switched_network.yaml b/tests/assets/configs/basic_switched_network.yaml index 774c4aa2..0687478d 100644 --- a/tests/assets/configs/basic_switched_network.yaml +++ b/tests/assets/configs/basic_switched_network.yaml @@ -88,6 +88,10 @@ simulation: data_manipulation_p_of_success: 0.8 payload: "DELETE" server_ip: 192.168.1.14 + - ref: dos_bot + type: DoSBot + options: + target_ip_address: 192.168.10.21 services: - ref: client_1_dns_server type: DNSServer @@ -98,6 +102,10 @@ simulation: type: DatabaseClient options: db_server_ip: 192.168.10.21 + - ref: client_1_dosbot + type: DoSBot + options: + db_server_ip: 192.168.10.21 - ref: client_1_database_service type: DatabaseService options: From 9b350ddd6f3120b0a504715121e941ab46454c36 Mon Sep 17 00:00:00 2001 From: Marek Wolan Date: Thu, 8 Feb 2024 13:20:32 +0000 Subject: [PATCH 15/39] Apply suggestions from code review. --- src/primaite/game/agent/rewards.py | 9 ++++++++- src/primaite/notebooks/uc2_demo.ipynb | 3 ++- 2 files changed, 10 insertions(+), 2 deletions(-) diff --git a/src/primaite/game/agent/rewards.py b/src/primaite/game/agent/rewards.py index 1a37b954..b5d5f998 100644 --- a/src/primaite/game/agent/rewards.py +++ b/src/primaite/game/agent/rewards.py @@ -68,6 +68,8 @@ class DummyReward(AbstractReward): :param config: dict of options for the reward component's constructor. Should be empty. :type config: dict + :return: The reward component. + :rtype: DummyReward """ return cls() @@ -230,7 +232,12 @@ class WebpageUnavailablePenalty(AbstractReward): @classmethod def from_config(cls, config: dict) -> AbstractReward: - """Build the reward component object from config.""" + """ + Build the reward component object from config. + + :param config: Configuration dictionary. + :type config: Dict + """ node_hostname = config.get("node_hostname") return cls(node_hostname=node_hostname) diff --git a/src/primaite/notebooks/uc2_demo.ipynb b/src/primaite/notebooks/uc2_demo.ipynb index 7454b6c4..51d787eb 100644 --- a/src/primaite/notebooks/uc2_demo.ipynb +++ b/src/primaite/notebooks/uc2_demo.ipynb @@ -307,7 +307,8 @@ "The blue agent's reward is calculated using two measures:\n", "1. Whether the database file is in a good state (+1 for good, -1 for corrupted, 0 for any other state)\n", "2. Whether each green agents' most recent webpage request was successful (+1 for a `200` return code, -1 for a `404` return code and 0 otherwise).\n", - "The file status reward and the two green-agent-related reward are averaged to get a total step reward.\n" + "\n", + "The file status reward and the two green-agent-related rewards are averaged to get a total step reward.\n" ] }, { From b31a9943d7bfe214391e83931fd252c1dab80f99 Mon Sep 17 00:00:00 2001 From: Czar Echavez Date: Thu, 8 Feb 2024 16:02:37 +0000 Subject: [PATCH 16/39] #2258: testing individual application install --- src/primaite/game/game.py | 11 ++++- .../configs/basic_switched_network.yaml | 4 +- tests/integration_tests/game_configuration.py | 41 +++++++++++++++++++ 3 files changed, 54 insertions(+), 2 deletions(-) diff --git a/src/primaite/game/game.py b/src/primaite/game/game.py index b03828f1..e16f4991 100644 --- a/src/primaite/game/game.py +++ b/src/primaite/game/game.py @@ -16,6 +16,7 @@ from primaite.simulator.network.hardware.nodes.computer import Computer from primaite.simulator.network.hardware.nodes.router import Router from primaite.simulator.network.hardware.nodes.server import Server from primaite.simulator.network.hardware.nodes.switch import Switch +from primaite.simulator.network.transmission.transport_layer import Port from primaite.simulator.sim_container import Simulation from primaite.simulator.system.applications.database_client import DatabaseClient from primaite.simulator.system.applications.red_applications.data_manipulation_bot import DataManipulationBot @@ -310,7 +311,15 @@ class PrimaiteGame: elif application_type == "DoSBot": if "options" in application_cfg: opt = application_cfg["options"] - new_application.target_ip_address = opt.get("target_ip_address") + new_application.configure( + target_ip_address=IPv4Address(opt.get("target_ip_address")), + target_port=Port(opt.get("target_port", Port.POSTGRES_SERVER.value)), + payload=opt.get("payload"), + repeat=bool(opt.get("repeat")), + port_scan_p_of_success=float(opt.get("port_scan_p_of_success", "0.1")), + dos_intensity=float(opt.get("dos_intensity", "1.0")), + max_sessions=int(opt.get("max_sessions", "1000")), + ) if "nics" in node_cfg: for nic_num, nic_cfg in node_cfg["nics"].items(): new_node.connect_nic(NIC(ip_address=nic_cfg["ip_address"], subnet_mask=nic_cfg["subnet_mask"])) diff --git a/tests/assets/configs/basic_switched_network.yaml b/tests/assets/configs/basic_switched_network.yaml index 0687478d..d86af779 100644 --- a/tests/assets/configs/basic_switched_network.yaml +++ b/tests/assets/configs/basic_switched_network.yaml @@ -87,11 +87,13 @@ simulation: port_scan_p_of_success: 0.8 data_manipulation_p_of_success: 0.8 payload: "DELETE" - server_ip: 192.168.1.14 + server_ip: 192.168.1.21 - ref: dos_bot type: DoSBot options: target_ip_address: 192.168.10.21 + payload: SPOOF DATA + port_scan_p_of_success: 0.8 services: - ref: client_1_dns_server type: DNSServer diff --git a/tests/integration_tests/game_configuration.py b/tests/integration_tests/game_configuration.py index ff977082..274e8bd6 100644 --- a/tests/integration_tests/game_configuration.py +++ b/tests/integration_tests/game_configuration.py @@ -1,3 +1,4 @@ +from ipaddress import IPv4Address from pathlib import Path from typing import Union @@ -9,6 +10,8 @@ from primaite.game.agent.interface import ProxyAgent, RandomAgent from primaite.game.game import APPLICATION_TYPES_MAPPING, PrimaiteGame, SERVICE_TYPES_MAPPING from primaite.simulator.network.container import Network from primaite.simulator.network.hardware.nodes.computer import Computer +from primaite.simulator.system.applications.red_applications.data_manipulation_bot import DataManipulationBot +from primaite.simulator.system.applications.red_applications.dos_bot import DoSBot from primaite.simulator.system.applications.web_browser import WebBrowser from primaite.simulator.system.services.dns.dns_client import DNSClient from primaite.simulator.system.services.ftp.ftp_client import FTPClient @@ -76,3 +79,41 @@ def test_node_software_install(): # check that services have been installed on client 1 for service in SERVICE_TYPES_MAPPING: assert client_1.software_manager.software.get(service) is not None + + +def test_web_browser_install(): + """Test that the web browser can be configured via config.""" + game = load_config(BASIC_CONFIG) + client_1: Computer = game.simulation.network.get_node_by_hostname("client_1") + + web_browser: WebBrowser = client_1.software_manager.software.get("WebBrowser") + + assert web_browser.target_url == "http://arcd.com/users/" + + +def test_data_manipulation_bot_install(): + """Test that the data manipulation bot can be configured via config.""" + game = load_config(BASIC_CONFIG) + client_1: Computer = game.simulation.network.get_node_by_hostname("client_1") + + data_manipulation_bot: DataManipulationBot = client_1.software_manager.software.get("DataManipulationBot") + + assert data_manipulation_bot.server_ip_address == IPv4Address("192.168.1.21") + assert data_manipulation_bot.payload == "DELETE" + assert data_manipulation_bot.data_manipulation_p_of_success == 0.8 + assert data_manipulation_bot.port_scan_p_of_success == 0.8 + + +def test_dos_bot_install(): + """Test that the denial of service bot can be configured via config.""" + game = load_config(BASIC_CONFIG) + client_1: Computer = game.simulation.network.get_node_by_hostname("client_1") + + dos_bot: DoSBot = client_1.software_manager.software.get("DoSBot") + + assert dos_bot.target_ip_address == IPv4Address("192.168.10.21") + assert dos_bot.payload == "SPOOF DATA" + assert dos_bot.port_scan_p_of_success == 0.8 + assert dos_bot.dos_intensity == 1.0 # default + assert dos_bot.max_sessions == 1000 # default + assert dos_bot.repeat is False # default From 0590f956e3443d916bb9273067b013c36130feeb Mon Sep 17 00:00:00 2001 From: Czar Echavez Date: Thu, 8 Feb 2024 16:21:08 +0000 Subject: [PATCH 17/39] #2258: ntp client should not request if ntp server is not set --- src/primaite/simulator/system/services/ntp/ntp_client.py | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/src/primaite/simulator/system/services/ntp/ntp_client.py b/src/primaite/simulator/system/services/ntp/ntp_client.py index e8c3d0cb..ccb2cbe7 100644 --- a/src/primaite/simulator/system/services/ntp/ntp_client.py +++ b/src/primaite/simulator/system/services/ntp/ntp_client.py @@ -127,6 +127,7 @@ class NTPClient(Service): super().apply_timestep(timestep) if self.operating_state == ServiceOperatingState.RUNNING: # request time from server - self.request_time() + if self.ntp_server is not None: + self.request_time() else: self.sys_log.debug(f"{self.name} ntp client not running") From a036160515ccfb4c1573df4a0482db8a074c2697 Mon Sep 17 00:00:00 2001 From: Chris McCarthy Date: Thu, 8 Feb 2024 22:37:21 +0000 Subject: [PATCH 18/39] #2248 - Enhances the PrimAITE documentation, covering the Node, network interfaces, Session Manager, Software Manager, PCAP service, SysLog functionality, and network devices like Routers, Switches, Computers, and Switch Nodes. It details their roles, workflows, and integration within the simulation, focusing on frame processing, software management, and logging. The documentation also clarifies the frame reception process, including port checks and application-level dispatching, ensuring a thorough understanding of network operations within the simulation --- CHANGELOG.md | 4 + docs/source/simulation.rst | 8 +- .../network/base_hardware.rst | 740 +----------------- .../simulation_components/network/network.rst | 8 +- .../network/network_interfaces.rst | 118 +++ .../network/nodes/host_node.rst | 47 ++ .../network/nodes/network_node.rst | 41 + .../network/nodes/router.rst | 41 + .../network/nodes/switch.rst | 29 + .../primaite_network_interface_model.png | Bin 0 -> 46770 bytes .../simulation_components/network/router.rst | 73 -- .../system/data_manipulation_bot.rst | 2 +- .../system/ftp_client_server.rst | 2 +- .../node_session_software_model_example.png | Bin 0 -> 52428 bytes .../simulation_components/system/pcap.rst | 51 ++ .../system/session_and_software_manager.rst | 90 +++ .../simulation_components/system/sys_log.rst | 51 ++ .../web_browser_and_web_server_service.rst | 2 +- .../wireless/wireless_access_point.py | 9 +- .../wireless/wireless_nic.py | 9 +- .../network/hardware/nodes/network/router.py | 41 - 21 files changed, 529 insertions(+), 837 deletions(-) create mode 100644 docs/source/simulation_components/network/network_interfaces.rst create mode 100644 docs/source/simulation_components/network/nodes/host_node.rst create mode 100644 docs/source/simulation_components/network/nodes/network_node.rst create mode 100644 docs/source/simulation_components/network/nodes/router.rst create mode 100644 docs/source/simulation_components/network/nodes/switch.rst create mode 100644 docs/source/simulation_components/network/primaite_network_interface_model.png delete mode 100644 docs/source/simulation_components/network/router.rst create mode 100644 docs/source/simulation_components/system/node_session_software_model_example.png create mode 100644 docs/source/simulation_components/system/pcap.rst create mode 100644 docs/source/simulation_components/system/session_and_software_manager.rst create mode 100644 docs/source/simulation_components/system/sys_log.rst diff --git a/CHANGELOG.md b/CHANGELOG.md index 94c6aff0..9716fd0e 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -67,6 +67,10 @@ SessionManager. - Created the `ARP` and `ICMP` service classes to handle Address Resolution Protocol operations and Internet Control Message Protocol messages, respectively, with `RouterARP` and `RouterICMP` for router-specific implementations. - Created `HostNode` as a subclass of `Node`, extending its functionality with host-specific services and applications. This class is designed to represent end-user devices like computers or servers that can initiate and respond to network communications. - Introduced a new `IPV4Address` type in the Pydantic model for enhanced validation and auto-conversion of IPv4 addresses from strings using an `ipv4_validator`. +- Comprehensive documentation for the Node and its network interfaces, detailing the operational workflow from frame reception to application-level processing. +- Detailed descriptions of the Session Manager and Software Manager functionalities, including their roles in managing sessions, software services, and applications within the simulation. +- Documentation for the Packet Capture (PCAP) service and SysLog functionality, highlighting their importance in logging network frames and system events, respectively. +- Expanded documentation on network devices such as Routers, Switches, Computers, and Switch Nodes, explaining their specific processing logic and protocol support. ### Changed diff --git a/docs/source/simulation.rst b/docs/source/simulation.rst index e5c0d2c8..d85a1449 100644 --- a/docs/source/simulation.rst +++ b/docs/source/simulation.rst @@ -17,9 +17,15 @@ Contents simulation_structure simulation_components/network/base_hardware + simulation_components/network/network_interfaces simulation_components/network/transport_to_data_link_layer - simulation_components/network/router + simulation_components/network/nodes/host_node + simulation_components/network/nodes/network_node + simulation_components/network/nodes/router simulation_components/network/switch simulation_components/network/network simulation_components/system/internal_frame_processing + simulation_components/system/sys_log + simulation_components/system/pcap + simulation_components/system/session_and_software_manager simulation_components/system/software diff --git a/docs/source/simulation_components/network/base_hardware.rst b/docs/source/simulation_components/network/base_hardware.rst index 01c68036..10ed59c6 100644 --- a/docs/source/simulation_components/network/base_hardware.rst +++ b/docs/source/simulation_components/network/base_hardware.rst @@ -6,719 +6,41 @@ Base Hardware ############# -The physical layer components are models of a NIC (Network Interface Card), SwitchPort, Node, Switch, and a Link. -These components allow modelling of layer 1 (physical layer) in the OSI model and the nodes that connect to and -transmit across layer 1. +The ``base.py`` module in ``primaite.simulator.network.hardware`` provides foundational components, interfaces, and classes for +modeling network hardware within PrimAITE simulations. It establishes core building blocks and abstractions that more +complex, specialized hardware components inherit from and build upon. -=== -NIC -=== +The key elements defined in ``base.py`` are: -The NIC class provides a realistic model of a Network Interface Card. The NIC acts as the interface between a Node and -a Link, handling IP and MAC addressing, status, and sending/receiving frames. +NetworkInterface +================ ----------- -Addressing ----------- +- Abstract base class for network interfaces like NICs. Defines common attributes like MAC address, speed, MTU. +- Requires subclasses to implement ``enable()``, ``disable()``, ``send_frame()`` and ``receive_frame()``. +- Provides basic state description and request handling capabilities. -A NIC has both an IPv4 address and MAC address assigned: - -- **ip_address** - The IPv4 address assigned to the NIC for communication on an IP network. -- **subnet_mask** - The subnet mask that defines the network subnet. -- **gateway** - The default gateway IP address for routing traffic beyond the local network. -- **mac_address** - A unique MAC address assigned to the NIC by the manufacturer. - - ------- -Status ------- - -The status of the NIC is represented by: - -- **enabled** - Indicates if the NIC is active/enabled or disabled/down. It must be enabled to send/receive frames. -- **connected_node** - The Node instance the NIC is attached to. -- **connected_link** - The Link instance the NIC is wired to. - - --------------- -Packet Capture --------------- - -- **pcap** - A PacketCapture instance attached to the NIC for capturing all frames sent and received. This allows packet -capture and analysis. - ------------------------- -Sending/Receiving Frames ------------------------- - -The NIC can send and receive Frames to/from the connected Link: - -- **send_frame()** - Sends a Frame through the NIC onto the attached Link. -- **receive_frame()** - Receives a Frame from the attached Link and processes it. - -This allows a NIC to handle sending, receiving, and forwarding of network traffic at layer 2 of the OSI model. -The Frames contain network data encapsulated with various protocol headers. - ------------ -Basic Usage ------------ - -.. code-block:: python - - nic1 = NIC( - ip_address="192.168.0.100", - subnet_mask="255.255.255.0", - gateway="192.168.0.1" - ) - nic1.enable() - frame = Frame(...) - nic1.send_frame(frame) - -========== -SwitchPort -========== - -The SwitchPort models a port on a network switch. It has similar attributes and methods to NIC for addressing, status, -packet capture, sending/receiving frames, etc. - -Key attributes: - -- **port_num**: The port number on the switch. -- **connected_switch**: The switch to which this port belongs. - -==== Node ==== -The Node class represents a base node that communicates on the Network. - -Nodes take more than 1 time step to power on (3 time steps by default). -To create a Node that is already powered on, the Node's operating state can be overriden. -Otherwise, the node ``start_up_duration`` (and ``shut_down_duration``) can be set to 0 if -the node will be powered off or on multiple times. This will still need ``power_on()`` to -be called to turn the node on. - -e.g. - -.. code-block:: python - - active_node = Node(hostname='server1', operating_state=NodeOperatingState.ON) - # node is already on, no need to call power_on() - - - instant_start_node = Node(hostname="client", start_up_duration=0, shut_down_duration=0) - instant_start_node.power_on() # node will still need to be powered on - -.. _Node Start up and Shut down: - ---------------------------- -Node Start up and Shut down ---------------------------- - -Nodes are powered on and off over multiple timesteps. By default, the node ``start_up_duration`` and ``shut_down_duration`` is 3 timesteps. - -Example code where a node is turned on: - -.. code-block:: python - - from primaite.simulator.network.hardware.base import Node - from primaite.simulator.network.hardware.node_operating_state import NodeOperatingState - - node = Node(hostname="pc_a") - - assert node.operating_state is NodeOperatingState.OFF # By default, node is instantiated in an OFF state - - node.power_on() # power on the node - - assert node.operating_state is NodeOperatingState.BOOTING # node is booting up - - for i in range(node.start_up_duration + 1): - # apply timestep until the node start up duration - node.apply_timestep(timestep=i) - - assert node.operating_state is NodeOperatingState.ON # node is in ON state - - -If the node needs to be instantiated in an on state: - - -.. code-block:: python - - from primaite.simulator.network.hardware.base import Node - from primaite.simulator.network.hardware.node_operating_state import NodeOperatingState - - node = Node(hostname="pc_a", operating_state=NodeOperatingState.ON) - - assert node.operating_state is NodeOperatingState.ON # node is in ON state - -Setting ``start_up_duration`` and/or ``shut_down_duration`` to ``0`` will allow for the ``power_on`` and ``power_off`` methods to be completed instantly without applying timesteps: - -.. code-block:: python - - from primaite.simulator.network.hardware.base import Node - from primaite.simulator.network.hardware.node_operating_state import NodeOperatingState - - node = Node(hostname="pc_a", start_up_duration=0, shut_down_duration=0) - - assert node.operating_state is NodeOperatingState.OFF # node is in OFF state - - node.power_on() - - assert node.operating_state is NodeOperatingState.ON # node is in ON state - - node.power_off() - - assert node.operating_state is NodeOperatingState.OFF # node is in OFF state - ------------------- -Network Interfaces ------------------- - -A Node will typically have one or more NICs attached to it for network connectivity: - -- **network_interfaces** - A dictionary containing the NIC instances attached to the Node. NICs can be added/removed. - -------------- -Configuration -------------- - -- **hostname** - Configured hostname of the Node. -- **operating_state** - Current operating state like ON or OFF. The NICs will be enabled/disabled based on this. - ----------------- -Network Services ----------------- - -A Node runs various network services and components for handling traffic: - -- **session_manager** - Handles establishing sessions to/from the Node. -- **software_manager** - Manages software and applications on the Node. -- **arp** - ARP cache for resolving IP addresses to MAC addresses. -- **icmp** - ICMP service for responding to pings and echo requests. -- **sys_log** - System log service for logging internal events and messages. - -The SysLog provides a logging mechanism for the Node: - -The SysLog records informational, warning, and error events that occur on the Node during simulation. This allows -debugging and tracing program execution and network activity for each simulated Node. Other Node services like ARP and -ICMP, along with custom Applications, services, and Processes will log to the SysLog. - ------------------ -Sending/Receiving ------------------ - -The Node handles sending and receiving Frames via its attached NICs: - -- **send_frame()** - Sends a Frame to the network through one of the Node's NICs. -- **receive_frame()** - Receives a Frame from the network through a NIC. The Node then processes it appropriately based -on the protocols and payload. - ------------ -Basic Usage ------------ - -.. code-block:: python - - node1 = Node(hostname='server1') - node1.operating_state = NodeOperatingState.ON - - nic1 = NIC() - node1.connect_nic(nic1) - - Send a frame - frame = Frame(...) - node1.send_frame(frame) - -The Node class brings together the NICs, configuration, and services to model a full network node that can send, -receive, process, and forward traffic on a simulated network. - -====== -Switch -====== - -The Switch subclass models a network switch. It inherits from Node and acts at layer 2 of the OSI model to forward -frames based on MAC addresses. - --------------------------- -Inherits Node Capabilities --------------------------- - -Since Switch subclasses Node, it inherits all capabilities from Node like: - -- **Managing NICs** -- **Running network services like ARP, ICMP** -- **Sending and receiving frames** -- **Maintaining system logs** - ------ -Ports ------ - -A Switch has multiple ports implemented using SwitchPort instances: - -- **switch_ports** - A dictionary mapping port numbers to SwitchPort instances. -- **num_ports** - The number of ports the Switch has. - ----------- -Forwarding ----------- - -A Switch forwards frames between ports based on the destination MAC: - -- **dst_mac_table** - MAC address table that maps MACs to SwitchPorts. -- **forward_frame()** - Forwards a frame out the port associated with the destination MAC. - -When a frame is received on a SwitchPort: - -1. The source MAC address is extracted from the frame. -2. An entry is added to dst_mac_table that maps this source MAC to the SwitchPort it was received on. -3. When a frame with that destination MAC is received in the future, it will be forwarded out this SwitchPort. - -This allows the Switch to dynamically build up a mapping table between MAC addresses and SwitchPorts based on traffic -received. If no entry exists for a destination MAC, it floods the frame out all ports. - -==== -Link -==== - -The Link class represents a physical link or connection between two network endpoints like NICs or SwitchPorts. - ---------- -Endpoints ---------- - -A Link connects two endpoints: - -- **endpoint_a** - The first endpoint, a NIC or SwitchPort. -- **endpoint_b** - The second endpoint, a NIC or SwitchPort. - ------------- -Transmission ------------- - -Links transmit Frames between the endpoints: - -- **transmit_frame()** - Sends a Frame from one endpoint to the other. - -Uses bandwidth/load properties to determine if transmission is possible. - ----------------- -Bandwidth & Load ----------------- - -- **bandwidth** - The total capacity of the Link in Mbps. -- **current_load** - The current bandwidth utilization of the Link in Mbps. - -As Frames are sent over the Link, the load increases. The Link tracks if there is enough unused capacity to transmit a -Frame based on its size and the current load. - ------- -Status ------- - -- **up** - Boolean indicating if the Link is currently up/active based on the endpoint status. -- **endpoint_up()/down()** - Notifies the Link when an endpoint goes up or down. - -This allows the Link to realistically model the connection and transmission characteristics between two endpoints. - -======================= -Putting it all Together -======================= - -We'll now demonstrate how the nodes, NICs, switches, and links connect in a network, including full code examples and -syslog extracts to illustrate the step-by-step process. - -To demonstrate successful network communication between nodes and switches, we'll model a standard network with four -PC's and two switches. - - -.. image:: ../../../_static/four_node_two_switch_network.png - -------------------- -Create Nodes & NICs -------------------- - -First, we'll create the four nodes, each with a single NIC. - -.. code-block:: python - - from primaite.simulator.network.hardware.base import Node, NodeOperatingState, NIC - - pc_a = Node(hostname="pc_a", operating_state=NodeOperatingState.ON) - nic_a = NIC(ip_address="192.168.0.10", subnet_mask="255.255.255.0", gateway="192.168.0.1") - pc_a.connect_nic(nic_a) - - pc_b = Node(hostname="pc_b", operating_state=NodeOperatingState.ON) - nic_b = NIC(ip_address="192.168.0.11", subnet_mask="255.255.255.0", gateway="192.168.0.1") - pc_b.connect_nic(nic_b) - - pc_c = Node(hostname="pc_c", operating_state=NodeOperatingState.ON) - nic_c = NIC(ip_address="192.168.0.12", subnet_mask="255.255.255.0", gateway="192.168.0.1") - pc_c.connect_nic(nic_c) - - pc_d = Node(hostname="pc_d", operating_state=NodeOperatingState.ON) - nic_d = NIC(ip_address="192.168.0.13", subnet_mask="255.255.255.0", gateway="192.168.0.1") - pc_d.connect_nic(nic_d) - -Creating the four nodes results in: - -**node_a NIC table** - -+-------------------+--------------+---------------+-----------------+--------------+----------+ -| MAC Address | IP Address | Subnet Mask | Default Gateway | Speed (Mbps) | Status | -+===================+==============+===============+=================+==============+==========+ -| 80:af:f2:f6:58:b7 | 102.169.0.10 | 255.255.255.0 | 192.168.0.1 | 100 | Disabled | -+-------------------+--------------+---------------+-----------------+--------------+----------+ - -**node_a sys log** - -.. code-block:: - - 2023-08-08 15:50:08,355 INFO: Connected NIC 80:af:f2:f6:58:b7/192.168.0.10 - -**node_b NIC table** - -+-------------------+--------------+---------------+-----------------+--------------+----------+ -| MAC Address | IP Address | Subnet Mask | Default Gateway | Speed (Mbps) | Status | -+===================+==============+===============+=================+==============+==========+ -| 98:ad:eb:7c:dc:cb | 102.169.0.11 | 255.255.255.0 | 192.168.0.1 | 100 | Disabled | -+-------------------+--------------+---------------+-----------------+--------------+----------+ - -**node_b sys log** - -.. code-block:: - - 2023-08-08 15:50:08,357 INFO: Connected NIC 98:ad:eb:7c:dc:cb/192.168.0.11 - -**node_c NIC table** - -+-------------------+--------------+---------------+-----------------+--------------+----------+ -| MAC Address | IP Address | Subnet Mask | Default Gateway | Speed (Mbps) | Status | -+===================+==============+===============+=================+==============+==========+ -| bc:72:82:5d:82:a4 | 102.169.0.12 | 255.255.255.0 | 192.168.0.1 | 100 | Disabled | -+-------------------+--------------+---------------+-----------------+--------------+----------+ - -**node_c sys log** - -.. code-block:: - - 2023-08-08 15:50:08,358 INFO: Connected NIC bc:72:82:5d:82:a4/192.168.0.12 - -**node_d NIC table** - -+-------------------+--------------+---------------+-----------------+--------------+----------+ -| MAC Address | IP Address | Subnet Mask | Default Gateway | Speed (Mbps) | Status | -+===================+==============+===============+=================+==============+==========+ -| 84:20:7c:ec:a5:c6 | 102.169.0.13 | 255.255.255.0 | 192.168.0.1 | 100 | Disabled | -+-------------------+--------------+---------------+-----------------+--------------+----------+ - -**node_d sys log** - -.. code-block:: - - 2023-08-08 15:50:08,359 INFO: Connected NIC 84:20:7c:ec:a5:c6/192.168.0.13 - ---------------- -Create Switches ---------------- - -Next, we'll create two six-port switches: - -.. code-block:: python - - switch_1 = Switch(hostname="switch_1", num_ports=6, operating_state=NodeOperatingState.ON) - - switch_2 = Switch(hostname="switch_2", num_ports=6, operating_state=NodeOperatingState.ON) - -This produces: - -**switch_1 MAC table** - -+------+-------------------+--------------+----------+ -| Port | MAC Address | Speed (Mbps) | Status | -+======+===================+==============+==========+ -| 1 | 9d:ac:59:a0:05:13 | 100 | Disabled | -+------+-------------------+--------------+----------+ -| 2 | 45:f5:8e:b6:f5:d3 | 100 | Disabled | -+------+-------------------+--------------+----------+ -| 3 | ef:f5:b9:28:cb:ae | 100 | Disabled | -+------+-------------------+--------------+----------+ -| 4 | 88:76:0a:72:fc:14 | 100 | Disabled | -+------+-------------------+--------------+----------+ -| 5 | 79:de:da:bd:e2:ba | 100 | Disabled | -+------+-------------------+--------------+----------+ -| 6 | 91:d5:83:a0:02:f2 | 100 | Disabled | -+------+-------------------+--------------+----------+ - -**switch_1 sys log** - -.. code-block:: - - 2023-08-08 15:50:08,373 INFO: Turned on - -**switch_2 MAC table** - -+------+-------------------+--------------+----------+ -| Port | MAC Address | Speed (Mbps) | Status | -+======+===================+==============+==========+ -| 1 | aa:58:fa:66:d7:be | 100 | Disabled | -+------+-------------------+--------------+----------+ -| 2 | 72:d2:1e:88:e9:45 | 100 | Disabled | -+------+-------------------+--------------+----------+ -| 3 | 8a:fc:2a:56:d5:c5 | 100 | Disabled | -+------+-------------------+--------------+----------+ -| 4 | fb:b5:9a:04:4a:49 | 100 | Disabled | -+------+-------------------+--------------+----------+ -| 5 | 88:aa:48:d0:21:9e | 100 | Disabled | -+------+-------------------+--------------+----------+ -| 6 | 96:77:39:d1:de:44 | 100 | Disabled | -+------+-------------------+--------------+----------+ - -**switch_2 sys log** - -.. code-block:: - - 2023-08-08 15:50:08,374 INFO: Turned on - ------------- -Create Links ------------- - -Finally, we'll create the five links that connect the nodes and the switches: - -.. code-block:: python - - link_nic_a_switch_1 = Link(endpoint_a=nic_a, endpoint_b=switch_1.switch_ports[1]) - link_nic_b_switch_1 = Link(endpoint_a=nic_b, endpoint_b=switch_1.switch_ports[2]) - link_nic_c_switch_2 = Link(endpoint_a=nic_c, endpoint_b=switch_2.switch_ports[1]) - link_nic_d_switch_2 = Link(endpoint_a=nic_d, endpoint_b=switch_2.switch_ports[2]) - link_switch_1_switch_2 = Link( - endpoint_a=switch_1.switch_ports[6], endpoint_b=switch_2.switch_ports[6] - ) - -This produces: - -**node_a NIC table** - -+-------------------+--------------+---------------+-----------------+--------------+---------+ -| MAC Address | IP Address | Subnet Mask | Default Gateway | Speed (Mbps) | Status | -+===================+==============+===============+=================+==============+=========+ -| 80:af:f2:f6:58:b7 | 102.169.0.10 | 255.255.255.0 | 192.168.0.1 | 100 | Enabled | -+-------------------+--------------+---------------+-----------------+--------------+---------+ - -**node_a sys log** - -.. code-block:: - - 2023-08-08 15:50:08,355 INFO: Connected NIC 80:af:f2:f6:58:b7/192.168.0.10 - 2023-08-08 15:50:08,355 INFO: Turned on - 2023-08-08 15:50:08,355 INFO: NIC 80:af:f2:f6:58:b7/192.168.0.10 enabled - -**node_b NIC table** - -+-------------------+--------------+---------------+-----------------+--------------+---------+ -| MAC Address | IP Address | Subnet Mask | Default Gateway | Speed (Mbps) | Status | -+===================+==============+===============+=================+==============+=========+ -| 98:ad:eb:7c:dc:cb | 102.169.0.11 | 255.255.255.0 | 192.168.0.1 | 100 | Enabled | -+-------------------+--------------+---------------+-----------------+--------------+---------+ - -**node_b sys log** - -.. code-block:: - - 2023-08-08 15:50:08,357 INFO: Connected NIC 98:ad:eb:7c:dc:cb/192.168.0.11 - 2023-08-08 15:50:08,357 INFO: Turned on - 2023-08-08 15:50:08,357 INFO: NIC 98:ad:eb:7c:dc:cb/192.168.0.11 enabled - -**node_c NIC table** - -+-------------------+--------------+---------------+-----------------+--------------+---------+ -| MAC Address | IP Address | Subnet Mask | Default Gateway | Speed (Mbps) | Status | -+===================+==============+===============+=================+==============+=========+ -| bc:72:82:5d:82:a4 | 102.169.0.12 | 255.255.255.0 | 192.168.0.1 | 100 | Enabled | -+-------------------+--------------+---------------+-----------------+--------------+---------+ - -**node_c sys log** - -.. code-block:: - - 2023-08-08 15:50:08,358 INFO: Connected NIC bc:72:82:5d:82:a4/192.168.0.12 - 2023-08-08 15:50:08,358 INFO: Turned on - 2023-08-08 15:50:08,358 INFO: NIC bc:72:82:5d:82:a4/192.168.0.12 enabled - -**node_d NIC table** - -+-------------------+--------------+---------------+-----------------+--------------+---------+ -| MAC Address | IP Address | Subnet Mask | Default Gateway | Speed (Mbps) | Status | -+===================+==============+===============+=================+==============+=========+ -| 84:20:7c:ec:a5:c6 | 102.169.0.13 | 255.255.255.0 | 192.168.0.1 | 100 | Enabled | -+-------------------+--------------+---------------+-----------------+--------------+---------+ - -**node_d sys log** - -.. code-block:: - - 2023-08-08 15:50:08,359 INFO: Connected NIC 84:20:7c:ec:a5:c6/192.168.0.13 - 2023-08-08 15:50:08,360 INFO: Turned on - 2023-08-08 15:50:08,360 INFO: NIC 84:20:7c:ec:a5:c6/192.168.0.13 enabled - -**switch_1 MAC table** - -+------+-------------------+--------------+----------+ -| Port | MAC Address | Speed (Mbps) | Status | -+======+===================+==============+==========+ -| 1 | 9d:ac:59:a0:05:13 | 100 | Enabled | -+------+-------------------+--------------+----------+ -| 2 | 45:f5:8e:b6:f5:d3 | 100 | Enabled | -+------+-------------------+--------------+----------+ -| 3 | ef:f5:b9:28:cb:ae | 100 | Disabled | -+------+-------------------+--------------+----------+ -| 4 | 88:76:0a:72:fc:14 | 100 | Disabled | -+------+-------------------+--------------+----------+ -| 5 | 79:de:da:bd:e2:ba | 100 | Disabled | -+------+-------------------+--------------+----------+ -| 6 | 91:d5:83:a0:02:f2 | 100 | Enabled | -+------+-------------------+--------------+----------+ - - -**switch_1 sys log** - -.. code-block:: - - 2023-08-08 15:50:08,373 INFO: Turned on - 2023-08-08 15:50:08,378 INFO: SwitchPort 9d:ac:59:a0:05:13 enabled - 2023-08-08 15:50:08,380 INFO: SwitchPort 45:f5:8e:b6:f5:d3 enabled - 2023-08-08 15:50:08,384 INFO: SwitchPort 91:d5:83:a0:02:f2 enabled - - -**switch_2 MAC table** - -+------+-------------------+--------------+----------+ -| Port | MAC Address | Speed (Mbps) | Status | -+======+===================+==============+==========+ -| 1 | aa:58:fa:66:d7:be | 100 | Enabled | -+------+-------------------+--------------+----------+ -| 2 | 72:d2:1e:88:e9:45 | 100 | Enabled | -+------+-------------------+--------------+----------+ -| 3 | 8a:fc:2a:56:d5:c5 | 100 | Disabled | -+------+-------------------+--------------+----------+ -| 4 | fb:b5:9a:04:4a:49 | 100 | Disabled | -+------+-------------------+--------------+----------+ -| 5 | 88:aa:48:d0:21:9e | 100 | Disabled | -+------+-------------------+--------------+----------+ -| 6 | 96:77:39:d1:de:44 | 100 | Enabled | -+------+-------------------+--------------+----------+ - - -**switch_2 sys log** - -.. code-block:: - - 2023-08-08 15:50:08,374 INFO: Turned on - 2023-08-08 15:50:08,381 INFO: SwitchPort aa:58:fa:66:d7:be enabled - 2023-08-08 15:50:08,383 INFO: SwitchPort 72:d2:1e:88:e9:45 enabled - 2023-08-08 15:50:08,384 INFO: SwitchPort 96:77:39:d1:de:44 enabled - - ------------- -Perform Ping ------------- - -Now with the network setup and operational, we can perform a ping to confirm that communication between nodes over a -switched network is possible. In the below example, we ping 192.168.0.13 (node_d) from node_a: - -.. code-block:: python - - pc_a.ping("192.168.0.13") - - -This produces: - -**node_a sys log** - -.. code-block:: - - 2023-08-08 15:50:08,355 INFO: Connected NIC 80:af:f2:f6:58:b7/192.168.0.10 - 2023-08-08 15:50:08,355 INFO: Turned on - 2023-08-08 15:50:08,355 INFO: NIC 80:af:f2:f6:58:b7/192.168.0.10 enabled - 2023-08-08 15:50:08,406 INFO: Attempting to ping 192.168.0.13 - 2023-08-08 15:50:08,406 INFO: No entry in ARP cache for 192.168.0.13 - 2023-08-08 15:50:08,406 INFO: Sending ARP request from NIC 80:af:f2:f6:58:b7/192.168.0.10 for ip 192.168.0.13 - 2023-08-08 15:50:08,413 INFO: Received ARP response for 192.168.0.13 from 84:20:7c:ec:a5:c6 via NIC 80:af:f2:f6:58:b7/192.168.0.10 - 2023-08-08 15:50:08,413 INFO: Adding ARP cache entry for 84:20:7c:ec:a5:c6/192.168.0.13 via NIC 80:af:f2:f6:58:b7/192.168.0.10 - 2023-08-08 15:50:08,415 INFO: Sending echo request to 192.168.0.13 - 2023-08-08 15:50:08,417 INFO: Received echo reply from 192.168.0.13 - 2023-08-08 15:50:08,419 INFO: Sending echo request to 192.168.0.13 - 2023-08-08 15:50:08,421 INFO: Received echo reply from 192.168.0.13 - 2023-08-08 15:50:08,422 INFO: Sending echo request to 192.168.0.13 - 2023-08-08 15:50:08,424 INFO: Received echo reply from 192.168.0.13 - 2023-08-08 15:50:08,425 INFO: Sending echo request to 192.168.0.13 - 2023-08-08 15:50:08,427 INFO: Received echo reply from 192.168.0.13 - - -**node_b sys log** - -.. code-block:: - - 2023-08-08 15:50:08,357 INFO: Connected NIC 98:ad:eb:7c:dc:cb/192.168.0.11 - 2023-08-08 15:50:08,357 INFO: Turned on - 2023-08-08 15:50:08,357 INFO: NIC 98:ad:eb:7c:dc:cb/192.168.0.11 enabled - 2023-08-08 15:50:08,410 INFO: Received ARP request for 192.168.0.13 from 80:af:f2:f6:58:b7/192.168.0.10 - 2023-08-08 15:50:08,410 INFO: Ignoring ARP request for 192.168.0.13 - - -**node_c sys log** - -.. code-block:: - - 2023-08-08 15:50:08,358 INFO: Connected NIC bc:72:82:5d:82:a4/192.168.0.12 - 2023-08-08 15:50:08,358 INFO: Turned on - 2023-08-08 15:50:08,358 INFO: NIC bc:72:82:5d:82:a4/192.168.0.12 enabled - 2023-08-08 15:50:08,411 INFO: Received ARP request for 192.168.0.13 from 80:af:f2:f6:58:b7/192.168.0.10 - 2023-08-08 15:50:08,411 INFO: Ignoring ARP request for 192.168.0.13 - - -**node_d sys log** - -.. code-block:: - - 2023-08-08 15:50:08,359 INFO: Connected NIC 84:20:7c:ec:a5:c6/192.168.0.13 - 2023-08-08 15:50:08,360 INFO: Turned on - 2023-08-08 15:50:08,360 INFO: NIC 84:20:7c:ec:a5:c6/192.168.0.13 enabled - 2023-08-08 15:50:08,412 INFO: Received ARP request for 192.168.0.13 from 80:af:f2:f6:58:b7/192.168.0.10 - 2023-08-08 15:50:08,412 INFO: Adding ARP cache entry for 80:af:f2:f6:58:b7/192.168.0.10 via NIC 84:20:7c:ec:a5:c6/192.168.0.13 - 2023-08-08 15:50:08,412 INFO: Sending ARP reply from 84:20:7c:ec:a5:c6/192.168.0.13 to 192.168.0.10/80:af:f2:f6:58:b7 - 2023-08-08 15:50:08,416 INFO: Received echo request from 192.168.0.10 - 2023-08-08 15:50:08,417 INFO: Sending echo reply to 192.168.0.10 - 2023-08-08 15:50:08,420 INFO: Received echo request from 192.168.0.10 - 2023-08-08 15:50:08,420 INFO: Sending echo reply to 192.168.0.10 - 2023-08-08 15:50:08,423 INFO: Received echo request from 192.168.0.10 - 2023-08-08 15:50:08,423 INFO: Sending echo reply to 192.168.0.10 - 2023-08-08 15:50:08,426 INFO: Received echo request from 192.168.0.10 - 2023-08-08 15:50:08,426 INFO: Sending echo reply to 192.168.0.10 - - - -**switch_1 sys log** - -.. code-block:: - - 2023-08-08 15:50:08,373 INFO: Turned on - 2023-08-08 15:50:08,378 INFO: SwitchPort 9d:ac:59:a0:05:13 enabled - 2023-08-08 15:50:08,380 INFO: SwitchPort 45:f5:8e:b6:f5:d3 enabled - 2023-08-08 15:50:08,384 INFO: SwitchPort 91:d5:83:a0:02:f2 enabled - 2023-08-08 15:50:08,409 INFO: Added MAC table entry: Port 1 -> 80:af:f2:f6:58:b7 - 2023-08-08 15:50:08,413 INFO: Added MAC table entry: Port 6 -> 84:20:7c:ec:a5:c6 - - - -**switch_2 sys log** - -.. code-block:: - - 2023-08-08 15:50:08,374 INFO: Turned on - 2023-08-08 15:50:08,381 INFO: SwitchPort aa:58:fa:66:d7:be enabled - 2023-08-08 15:50:08,383 INFO: SwitchPort 72:d2:1e:88:e9:45 enabled - 2023-08-08 15:50:08,384 INFO: SwitchPort 96:77:39:d1:de:44 enabled - 2023-08-08 15:50:08,411 INFO: Added MAC table entry: Port 6 -> 80:af:f2:f6:58:b7 - 2023-08-08 15:50:08,412 INFO: Added MAC table entry: Port 2 -> 84:20:7c:ec:a5:c6 +The Node class is the most crucial component defined in base.py, serving as the parent class for all nodes within a +PrimAITE network simulation. + +It encapsulates the following key attributes and behaviors: + +- ``hostname`` - The node's hostname on the network. +- ``network_interfaces`` - Dict of NetworkInterface objects attached to the node. +- ``operating_state`` - The hardware state (on/off) of the node. +- ``sys_log`` - System log to record node events. +- ``session_manager`` - Manages user sessions on the node. +- ``software_manager`` - Manages software and services installed on the node. +- ``connect_nic()`` - Connects a NetworkInterface to the node. +- ``disconnect_nic()`` - Disconnects a NetworkInterface from the node. +- ``receive_frame()`` - Receive and process an incoming network frame. +- ``apply_timestep()`` - Progresses node state for a simulation timestep. +- ``power_on()`` - Powers on the node and enables NICs. +- ``power_off()`` - Powers off the node and disables NICs. + + +The Node class handles installation of system software, network connectivity, frame processing, system logging, and +power states. It establishes baseline functionality while allowing subclassing to model specific node types like hosts, +routers, firewalls etc. The flexible architecture enables composing complex network topologies. diff --git a/docs/source/simulation_components/network/network.rst b/docs/source/simulation_components/network/network.rst index cb6d9392..533a15f2 100644 --- a/docs/source/simulation_components/network/network.rst +++ b/docs/source/simulation_components/network/network.rst @@ -66,9 +66,9 @@ we'll use the following Network that has a client, server, two switches, and a r .. code-block:: python - network.connect(endpoint_a=router_1.ethernet_ports[1], endpoint_b=switch_1.switch_ports[6]) + network.connect(endpoint_a=router_1.network_interfaces[1], endpoint_b=switch_1.network_interface[6]) router_1.enable_port(1) - network.connect(endpoint_a=router_1.ethernet_ports[2], endpoint_b=switch_2.switch_ports[6]) + network.connect(endpoint_a=router_1.network_interfaces[2], endpoint_b=switch_2.network_interface[6]) router_1.enable_port(2) 6. Create the Client and Server nodes. @@ -94,8 +94,8 @@ we'll use the following Network that has a client, server, two switches, and a r .. code-block:: python - network.connect(endpoint_a=switch_2.switch_ports[1], endpoint_b=client_1.ethernet_port[1]) - network.connect(endpoint_a=switch_1.switch_ports[1], endpoint_b=server_1.ethernet_port[1]) + network.connect(endpoint_a=switch_2.network_interface[1], endpoint_b=client_1.network_interface[1]) + network.connect(endpoint_a=switch_1.network_interface[1], endpoint_b=server_1.network_interface[1]) 8. Add ACL rules on the Router to allow ARP and ICMP traffic. diff --git a/docs/source/simulation_components/network/network_interfaces.rst b/docs/source/simulation_components/network/network_interfaces.rst new file mode 100644 index 00000000..9e1ad80a --- /dev/null +++ b/docs/source/simulation_components/network/network_interfaces.rst @@ -0,0 +1,118 @@ +.. only:: comment + + © Crown-owned copyright 2023, Defence Science and Technology Laboratory UK + +################################# +Network Interface Hierarchy Model +################################# + +The network interface hierarchy model is designed to represent the various types of network interfaces and their +functionalities within a networking system. This model is organised into five distinct layers, each serving a specific +purpose in the abstraction, implementation, and utilisation of network interfaces. This hierarchical structure +facilitates modular development, enhances maintainability, and supports scalability by clearly separating concerns and +allowing for focused enhancements within each layer. + +.. image:: primaite_network_interface_model.png + +Layer Descriptions +================== + +#. **Base Layer** + + * **Purpose:** Serves as the foundation of the hierarchy, defining the most abstract properties and behaviours common + to all network interfaces. + * **Content:** Contains the NetworkInterface class, which abstracts basic functionalities such as enabling/disabling + the interface, sending, and receiving frames. + * **Significance:** Ensures that core functionalities are universally available across all types of network + interfaces, promoting code reuse and consistency. + +#. **Connection Type Layer** + + * **Purpose:** Differentiates network interfaces based on their physical connection type: wired or wireless. + * **Content:** Includes ``WiredNetworkInterface`` and ``WirelessNetworkInterface`` classes, each tailoring the base + functionalities to specific mediums. + * **Significance:** Allows the development of medium-specific features (e.g., handling point-to-point links in + wired devices) while maintaining a clear separation from IP-related functionalities. + +#. **IP Layer** + + * **Purpose:** Introduces Internet Protocol (IP) capabilities to network interfaces, enabling IP-based networking. + * **Content:** Includes ``IPWiredNetworkInterface`` and ``IPWirelessNetworkInterface`` classes, extending connection + type-specific classes with IP functionalities. + * **Significance:** Facilitates the implementation of IP address assignment, subnetting, and other Layer 3 + networking features, crucial for modern networking applications. + +#. **Interface Layer** + + * **Purpose:** Defines concrete implementations of network interfaces for specific devices or roles within a network. + * **Content:** Includes ``NIC``, ``RouterInterface``, ``SwitchPort``, ``WirelessNIC``, and ``WirelessAccessPoint`` + classes, each designed for a particular networking function or device. + * **Significance:** This layer allows developers to directly utilise or extend pre-built interfaces tailored to + specific networking tasks, enhancing development efficiency and clarity. + +#. **Device Layer** + + * **Purpose:** Maps the concrete interface implementations to their respective devices within a network, + illustrating practical usage scenarios. + * **Content:** Conceptually groups devices such as ``Computer``, ``Server``, ``Switch``, ``Router``, and ``Firewall`` + with the interfaces they utilise (e.g., ``Computer`` might use ``NIC`` or ``WirelessNIC``). + * **Significance:** Provides a clear understanding of how various network interfaces are applied in real-world + devices, aiding in system design and architecture planning. + + +Network Interface Classes +========================= + +**NetworkInterface (Base Layer)** + +Abstract base class defining core interface properties like MAC address, speed, MTU. +Requires subclasses implement key methods like send/receive frames, enable/disable interface. +Establishes universal network interface capabilities. + +**WiredNetworkInterface (Connection Type Layer)** + +- Extends NetworkInterface for wired connection interfaces. +- Adds notions of physical/logical connectivity and link management. +- Mandates subclasses implement wired-specific methods. + +**WirelessNetworkInterface (Connection Type Layer)** + +- Extends NetworkInterface for wireless interfaces. +- Encapsulates wireless-specific behaviours like signal strength handling. +- Requires wireless-specific methods in subclasses. + +**Layer3Interface (IP Layer)** + +- Introduces IP addressing abilities with ip_address and subnet_mask. +- Validates address configuration. +- Enables participation in IP networking. + +**IPWiredNetworkInterface (IP Layer)** + +- Merges Layer3Interface and WiredNetworkInterface. +- Defines wired interfaces with IP capabilities. +- Meant to be extended, doesn't implement methods. + +**IPWirelessNetworkInterface (IP Layer)** + +- Combines Layer3Interface and WirelessNetworkInterface. +- Represents wireless interfaces with IP capabilities. +- Intended to be extended and specialised. + +**NIC (Interface Layer)** + +- Concrete wired NIC implementation combining IPWiredNetworkInterface and Layer3Interface. +- Provides network connectivity for host nodes. +- Manages MAC and IP addressing, frame processing. + +**WirelessNIC (Interface Layer)** + +- Concrete wireless NIC implementation combining IPWirelessNetworkInterface and Layer3Interface. +- Delivers wireless connectivity with IP for hosts. +- Handles wireless transmission/reception. + +**WirelessAccessPoint (Interface Layer)** + +- Concrete wireless access point implementation using IPWirelessNetworkInterface and Layer3Interface. +- Bridges wireless and wired networks. +- Manages wireless network. diff --git a/docs/source/simulation_components/network/nodes/host_node.rst b/docs/source/simulation_components/network/nodes/host_node.rst new file mode 100644 index 00000000..bc3c13a5 --- /dev/null +++ b/docs/source/simulation_components/network/nodes/host_node.rst @@ -0,0 +1,47 @@ + +######### +Host Node +######### + +The ``host_node.py`` module is a core component of the PrimAITE project, aimed at simulating network host. It +encapsulates the functionality necessary for modelling the behaviour, communication capabilities, and interactions of +hosts in a networked environment. + + +HostNode Class +============== + +The ``HostNode`` class acts as a foundational representation of a networked device or computer, capable of both +initiating and responding to network communications. + +**Attributes:** + +- Manages IP addressing with support for IPv4. +- Employs ``NIC`` or ``WirelessNIC`` (subclasses of``IPWiredNetworkInterface``) to simulate wired network connections. +- Integrates with ``SysLog`` for logging operational events, aiding in debugging and monitoring the host node's + behaviour. + +**Key Methods:** + +- Facilitates the sending and receiving of ``Frame`` objects to simulate data link layer communications. +- Manages a variety of network services and applications, enhancing the simulation's realism and functionality. + +Default Services and Applications +================================= + +Both the ``HostNode`` and its subclasses come equipped with a suite of default services and applications critical for +fundamental network operations: + +1. **ARP (Address Resolution Protocol):** The ``HostARP`` subclass enhances ARP functionality for host-specific + operations. + +2. **DNS (Domain Name System) Client:** Facilitates domain name resolution to IP addresses, enabling web navigation. + +3. **FTP (File Transfer Protocol) Client:** Supports file transfers across the network. + +4. **ICMP (Internet Control Message Protocol):** Utilised for network diagnostics and control, such as executing ping + requests. + +5. **NTP (Network Time Protocol) Client:** Synchronises the host's clock with network time servers. + +6. **Web Browser:** A simulated application that allows the host to request and display web content. diff --git a/docs/source/simulation_components/network/nodes/network_node.rst b/docs/source/simulation_components/network/nodes/network_node.rst new file mode 100644 index 00000000..eb9997ba --- /dev/null +++ b/docs/source/simulation_components/network/nodes/network_node.rst @@ -0,0 +1,41 @@ +.. only:: comment + + © Crown-owned copyright 2023, Defence Science and Technology Laboratory UK + +############ +Network Node +############ + + +The ``network_node.py`` module within the PrimAITE project is pivotal for simulating network nodes like routers and +switches, which are integral to network traffic management. This module establishes the framework for these devices, +enabling them to receive and process network frames effectively. + +Overview +======== + +The module defines the ``NetworkNode`` class, an abstract base class that outlines essential behaviours for network +devices tasked with handling network traffic. It is designed to be extended by more specific device simulations that +implement these foundational capabilities. + +NetworkNode Class +================= + +The ``NetworkNode`` class is at the heart of the module, providing an interface for network devices that participate +in the transmission and routing of data within the simulated environment. + +**Key Features:** + +- **Frame Processing:** Central to the class is the ability to receive and process network frames, facilitating the +simulation of data flow through network devices. + +- **Abstract Methods:** Includes abstract methods such as ``receive_frame``, which subclasses must implement to specify + how devices handle incoming traffic. + +- **Extensibility:** Designed for extension, allowing for the creation of specific device simulations, such as router + and switch classes, that embody unique behaviours and functionalities. + + +The ``network_node.py`` module's abstract approach to defining network devices allows the PrimAITE project to simulate +a wide range of network behaviours and scenarios comprehensively. By providing a common framework for all network +nodes, it facilitates the development of a modular and scalable simulation environment. diff --git a/docs/source/simulation_components/network/nodes/router.rst b/docs/source/simulation_components/network/nodes/router.rst new file mode 100644 index 00000000..7679baa0 --- /dev/null +++ b/docs/source/simulation_components/network/nodes/router.rst @@ -0,0 +1,41 @@ +.. only:: comment + + © Crown-owned copyright 2023, Defence Science and Technology Laboratory UK + +###### +Router +###### + +The ``router.py`` module is a pivotal component of the PrimAITE, designed to simulate the complex functionalities of a +router within a network simulation. Routers are essential for directing traffic between different network segments, +and this module provides the tools necessary to model these devices' behaviour and capabilities accurately. + +Router Class +------------ + +The ``Router`` class embodies the core functionalities of a network router, extending the ``NetworkNode`` class to +incorporate routing-specific behaviours. + +**Key Features:** + +- **IP Routing:** Supports dynamic handling of IP packets, including forwarding based on destination IP addresses and + subnetting. +- **Routing Table:** Maintains a routing table to determine the best path for forwarding packets. +- **Protocol Support:** Implements support for key networking protocols, including ARP for address resolution and ICMP + for diagnostic messages. +- **Interface Management:** Manages multiple ``RouterInterface`` instances, enabling connections to different network + segments. +- **Network Interface Configuration:** Tools for configuring router interfaces, including setting IP addresses, subnet + masks, and enabling/disabling interfaces. +- **Logging and Monitoring:** Integrates with ``SysLog`` for logging operational events, aiding in debugging and + monitoring router behaviour. + +**Operations:** + +- **Packet Forwarding:** Utilises the routing table to forward packets to their correct destination across + interconnected networks. +- **ARP Handling:** Responds to ARP requests for any IP addresses configured on its interfaces, facilitating + communication within local networks. +- **ICMP Processing:** Generates and processes ICMP packets, such as echo requests and replies, for network diagnostics. + +The ``router.py`` module offers a comprehensive simulation of router functionalities. By providing detailed modelling of router operations, including packet forwarding, interface management, and protocol handling, PrimAITE enables the exploration of advanced network topologies and routing scenarios. diff --git a/docs/source/simulation_components/network/nodes/switch.rst b/docs/source/simulation_components/network/nodes/switch.rst new file mode 100644 index 00000000..0595f363 --- /dev/null +++ b/docs/source/simulation_components/network/nodes/switch.rst @@ -0,0 +1,29 @@ +.. only:: comment + + © Crown-owned copyright 2023, Defence Science and Technology Laboratory UK + +###### +Switch +###### + +The ``switch.py`` module is a crucial component of the PrimAITE, aimed at simulating network switches within a network simulation environment. Network switches play a vital role in managing data flow within local area networks (LANs) by forwarding frames based on MAC addresses. This module provides a comprehensive framework for modelling switch operations and behaviours. + +Switch Class Overview +--------------------- + +The module introduces the concept of switch ports through the ``SwitchPort`` class, which extends the functionality of ``WiredNetworkInterface`` to simulate the operation of switch ports in a network. + +**Key Features:** + +- **Data Link Layer Operation:** Operates at the data link layer (Layer 2) of the OSI model, handling the reception and forwarding of frames based on MAC addresses. +- **Port Management:** Tools for configuring switch ports, including enabling/disabling ports, setting port speeds, and managing port security features. +- **Logging and Monitoring:** Integrates with ``SysLog`` for logging operational events, aiding in debugging and + monitoring switch behaviour. + +Functionality and Implementation +--------------------------------- + +- **MAC Address Learning:** Dynamically learns and associates MAC addresses with switch ports, enabling intelligent frame forwarding. +- **Frame Forwarding:** Utilises the learned MAC address table to forward frames only to the specific port associated with the destination MAC address, minimising unnecessary network traffic. + +The ``switch.py`` module offers a realistic and configurable representation of switch operations. 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zM%pj9v?1<0S9ym{w?f{$Hm!r~(FlWmG(Jg!eVGRKXR39Ez$b^b+iFQ~2^^dNBfp-0 zUoa|Zvgw?PF`Zd*xRm#_Pw}cm_bO29I%A>Z1qMQPWTw%226Pv@|Mwn>qAgAXXn3+% z?%FxmpZC|F@VIG~YSByz`*z&Iyj9V}*rT#h97ZGUW$4NSkh6D6_B>>nw0Gbz{wj-8n*cV10pv~svqk-8hn|Q6rSZx_b4s)JYCIH zX-w-`xT4Hqs9ZP`uV(+ljRU6_c-$xz-6n3-k+DnzAvPHQd+Og6>wixZ|8H3C{sn}7 zi-E*n+-);KJ`o%wIaryP0KmncipRBp_qaS>2d<)T6Ku>L39f%NJB(isjs=vY@d#ic zz*JrSsLfR(y*OGIMhkq%CQ7)G39S=2#wH*D%E!7udmu(~0B8?mBt($*xE(Nk-{BzC zvR&GAdL($2ql`M9LeD**rcdGkM!Fm?_$(hkV|6Xm!&0>zi6UVftJf60q5nQo%UF0W zAL+=BPx{{p70X$*{MB2oEp|tYE%~qA5j{X4{#WKE@9-#8(SUNsNu2;p){r#)qS2eF zcd{XkmUMIIPeQ;b5hyn}Wp7=de?TMd5v9IpzFAJ+b)KdzyhM*nmPI36Y$;ILYDlK% z2so6OD|I0b8R&oj?1y*wCKMtD;L_svJ%#T>vgVZWOkryxAEsNa0Cbmq{ z#z$KvS=%A|XS)^6MLSiKe10}nc(UVoyY21RN9Ku=Ea*Vd%P_iUJ+`)34Ni;$_`}72 z1wP;SiB{Hi4#0rLa?pVsYcRCH-bc`5H$toTS%&p*|Nm_kJ-jM)dndP@UOT8VyAuCR zY`y`WKOg|BS2$1^E>*R+_-n#hu;)M<2J>5bp$~#l#H*Eop^64j449_fNmGMmY@w__ zBzL|_TdxQ bool: - """ - Receive and process a network frame from the connected link, provided the NIC is enabled. - - This method is tailored for router behavior. It decrements the frame's Time To Live (TTL), checks for TTL - expiration, and captures the frame using PCAP (Packet Capture). The frame is accepted if it is destined for - this NIC's MAC address or is a broadcast frame. - - Key Differences from Standard NIC: - - Does not perform Layer 3 (IP-based) broadcast checks. - - Only checks for Layer 2 (Ethernet) destination MAC address and broadcast frames. - - :param frame: The network frame being received. This should be an instance of the Frame class. - :return: Returns True if the frame is processed and passed to the connected node, False otherwise. - """ - if self.enabled: - frame.decrement_ttl() - if frame.ip and frame.ip.ttl < 1: - self._connected_node.sys_log.info("Frame discarded as TTL limit reached") - return False - frame.set_received_timestamp() - self.pcap.capture_inbound(frame) - # If this destination or is broadcast - if frame.ethernet.dst_mac_addr == self.mac_address or frame.ethernet.dst_mac_addr == "ff:ff:ff:ff:ff:ff": - self._connected_node.receive_frame(frame=frame, from_network_interface=self) - return True - return False - - def __str__(self) -> str: - return f"{self.mac_address}/{self.ip_address}" - - class RouterInterface(IPWiredNetworkInterface): """ Represents a Router Interface. From 0acd9a29385e543590e3c781b5eb68a149caa5a3 Mon Sep 17 00:00:00 2001 From: Chris McCarthy Date: Fri, 9 Feb 2024 10:27:22 +0000 Subject: [PATCH 19/39] #2248 - Removed redundant code and added more documentation from PR suggestions --- .../network/base_hardware.rst | 48 +++++++++++++------ .../simulator/network/hardware/base.py | 4 -- .../simulator/system/core/packet_capture.py | 2 +- .../_system/_services/test_web_server.py | 16 ------- 4 files changed, 34 insertions(+), 36 deletions(-) diff --git a/docs/source/simulation_components/network/base_hardware.rst b/docs/source/simulation_components/network/base_hardware.rst index 10ed59c6..c7545810 100644 --- a/docs/source/simulation_components/network/base_hardware.rst +++ b/docs/source/simulation_components/network/base_hardware.rst @@ -21,24 +21,42 @@ NetworkInterface Node ==== +The Node class stands as a central component in ``base.py``, acting as the superclass for all network nodes within a +PrimAITE simulation. -The Node class is the most crucial component defined in base.py, serving as the parent class for all nodes within a -PrimAITE network simulation. -It encapsulates the following key attributes and behaviors: -- ``hostname`` - The node's hostname on the network. -- ``network_interfaces`` - Dict of NetworkInterface objects attached to the node. -- ``operating_state`` - The hardware state (on/off) of the node. -- ``sys_log`` - System log to record node events. -- ``session_manager`` - Manages user sessions on the node. -- ``software_manager`` - Manages software and services installed on the node. -- ``connect_nic()`` - Connects a NetworkInterface to the node. -- ``disconnect_nic()`` - Disconnects a NetworkInterface from the node. -- ``receive_frame()`` - Receive and process an incoming network frame. -- ``apply_timestep()`` - Progresses node state for a simulation timestep. -- ``power_on()`` - Powers on the node and enables NICs. -- ``power_off()`` - Powers off the node and disables NICs. +Node Attributes +--------------- + + +- **hostname**: The network hostname of the node. +- **operating_state**: Indicates the current hardware state of the node. +- **network_interfaces**: Maps interface names to NetworkInterface objects on the node. +- **network_interface**: Maps port IDs to ``NetworkInterface`` objects on the node. +- **dns_server**: Specifies DNS servers for domain name resolution. +- **start_up_duration**: The time it takes for the node to become fully operational after being powered on. +- **shut_down_duration**: The time required for the node to properly shut down. +- **sys_log**: A system log for recording events related to the node. +- **session_manager**: Manages user sessions within the node. +- **software_manager**: Controls the installation and management of software and services on the node. + +Node Behaviours/Functions +------------------------- + + +- **connect_nic()**: Connects a ``NetworkInterface`` to the node for network communication. +- **disconnect_nic()**: Removes a ``NetworkInterface`` from the node. +- **receive_frame()**: Handles the processing of incoming network frames. +- **apply_timestep()**: Advances the state of the node according to the simulation timestep. +- **power_on()**: Initiates the node, enabling all connected Network Interfaces and starting all Services and + Applications, taking into account the `start_up_duration`. +- **power_off()**: Stops the node's operations, adhering to the `shut_down_duration`. +- **ping()**: Sends ICMP echo requests to a specified IP address to test connectivity. +- **has_enabled_network_interface()**: Checks if the node has any network interfaces enabled, facilitating network + communication. +- **show()**: Provides a summary of the node's current state, including network interfaces, operational status, and + other key attributes. The Node class handles installation of system software, network connectivity, frame processing, system logging, and diff --git a/src/primaite/simulator/network/hardware/base.py b/src/primaite/simulator/network/hardware/base.py index 541e6428..f5bd5ff5 100644 --- a/src/primaite/simulator/network/hardware/base.py +++ b/src/primaite/simulator/network/hardware/base.py @@ -725,10 +725,6 @@ class Node(SimComponent): self._install_system_software() self.set_original_state() - # def model_post_init(self, __context: Any) -> None: - # self._install_system_software() - # self.set_original_state() - def set_original_state(self): """Sets the original state.""" for software in self.software_manager.software.values(): diff --git a/src/primaite/simulator/system/core/packet_capture.py b/src/primaite/simulator/system/core/packet_capture.py index 3f34cad8..fb8a1624 100644 --- a/src/primaite/simulator/system/core/packet_capture.py +++ b/src/primaite/simulator/system/core/packet_capture.py @@ -102,7 +102,7 @@ class PacketCapture: def capture_outbound(self, frame): # noqa - I'll have a circular import and cant use if TYPE_CHECKING ;( """ - Capture an inbound Frame and log it. + Capture an outbound Frame and log it. :param frame: The PCAP frame to capture. """ diff --git a/tests/unit_tests/_primaite/_simulator/_system/_services/test_web_server.py b/tests/unit_tests/_primaite/_simulator/_system/_services/test_web_server.py index 0d9d68b7..6fac0bcf 100644 --- a/tests/unit_tests/_primaite/_simulator/_system/_services/test_web_server.py +++ b/tests/unit_tests/_primaite/_simulator/_system/_services/test_web_server.py @@ -52,19 +52,3 @@ def test_handling_get_request_home_page(web_server): response: HttpResponsePacket = web_server_service._handle_get_request(payload=payload) assert response.status_code == HttpStatusCode.OK - - -# def test_process_http_request_get(web_server): -# payload = HttpRequestPacket(request_method=HttpRequestMethod.GET, request_url="http://domain.com/") -# -# web_server_service: WebServer = web_server.software_manager.software.get("WebServer") -# -# assert web_server_service._process_http_request(payload=payload) is True -# -# -# def test_process_http_request_method_not_allowed(web_server): -# payload = HttpRequestPacket(request_method=HttpRequestMethod.DELETE, request_url="http://domain.com/") -# -# web_server_service: WebServer = web_server.software_manager.software.get("WebServer") -# -# assert web_server_service._process_http_request(payload=payload) is False From bebfbd53be796bedb18ebc46958b07326a03165d Mon Sep 17 00:00:00 2001 From: Chris McCarthy Date: Fri, 9 Feb 2024 10:30:39 +0000 Subject: [PATCH 20/39] #2248 - MAde tests use new way of accessing network interfaces by their port number --- .../system/red_applications/test_dos_bot_and_server.py | 4 ++-- tests/integration_tests/system/test_dns_client_server.py | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/tests/integration_tests/system/red_applications/test_dos_bot_and_server.py b/tests/integration_tests/system/red_applications/test_dos_bot_and_server.py index 7ab7d104..e42862bf 100644 --- a/tests/integration_tests/system/red_applications/test_dos_bot_and_server.py +++ b/tests/integration_tests/system/red_applications/test_dos_bot_and_server.py @@ -24,7 +24,7 @@ def dos_bot_and_db_server(client_server) -> Tuple[DoSBot, Computer, DatabaseServ dos_bot: DoSBot = computer.software_manager.software.get("DoSBot") dos_bot.configure( - target_ip_address=IPv4Address(server.network_interfaces.get(next(iter(server.network_interfaces))).ip_address), + target_ip_address=IPv4Address(server.network_interface[1].ip_address), target_port=Port.POSTGRES_SERVER, ) @@ -54,7 +54,7 @@ def dos_bot_db_server_green_client(example_network) -> Network: dos_bot: DoSBot = client_1.software_manager.software.get("DoSBot") dos_bot.configure( - target_ip_address=IPv4Address(server.network_interfaces.get(next(iter(server.network_interfaces))).ip_address), + target_ip_address=IPv4Address(server.network_interface[1].ip_address), target_port=Port.POSTGRES_SERVER, ) diff --git a/tests/integration_tests/system/test_dns_client_server.py b/tests/integration_tests/system/test_dns_client_server.py index 78d2035c..e6275459 100644 --- a/tests/integration_tests/system/test_dns_client_server.py +++ b/tests/integration_tests/system/test_dns_client_server.py @@ -29,7 +29,7 @@ def dns_client_and_dns_server(client_server) -> Tuple[DNSClient, Computer, DNSSe # register arcd.com as a domain dns_server.dns_register( domain_name="arcd.com", - domain_ip_address=IPv4Address(server.network_interfaces.get(next(iter(server.network_interfaces))).ip_address), + domain_ip_address=IPv4Address(server.network_interface[1].ip_address), ) return dns_client, computer, dns_server, server From 2518a426040d4274eafed70152c12dcd2b0b6cee Mon Sep 17 00:00:00 2001 From: Chris McCarthy Date: Fri, 9 Feb 2024 11:03:48 +0000 Subject: [PATCH 21/39] #2248 - Dropped old router_arp.py module. Fixed the ICMP codes as per IANA (https://www.iana.org/assignments/icmp-parameters/icmp-parameters.xhtml) --- .../simulator/network/protocols/icmp.py | 4 +- .../system/services/arp/router_arp.py | 78 ------------------- 2 files changed, 2 insertions(+), 80 deletions(-) delete mode 100644 src/primaite/simulator/system/services/arp/router_arp.py diff --git a/src/primaite/simulator/network/protocols/icmp.py b/src/primaite/simulator/network/protocols/icmp.py index 66215db0..35b0a05d 100644 --- a/src/primaite/simulator/network/protocols/icmp.py +++ b/src/primaite/simulator/network/protocols/icmp.py @@ -21,9 +21,9 @@ class ICMPType(Enum): "Redirect." ECHO_REQUEST = 8 "Echo Request (ping)." - ROUTER_ADVERTISEMENT = 10 + ROUTER_ADVERTISEMENT = 9 "Router Advertisement." - ROUTER_SOLICITATION = 11 + ROUTER_SOLICITATION = 10 "Router discovery/selection/solicitation." TIME_EXCEEDED = 11 "Time Exceeded." diff --git a/src/primaite/simulator/system/services/arp/router_arp.py b/src/primaite/simulator/system/services/arp/router_arp.py deleted file mode 100644 index d9108910..00000000 --- a/src/primaite/simulator/system/services/arp/router_arp.py +++ /dev/null @@ -1,78 +0,0 @@ -# from ipaddress import IPv4Address -# from typing import Optional, Any -# -# from primaite.simulator.network.hardware.nodes.network.router import RouterInterface, Router -# from primaite.simulator.network.protocols.arp import ARPPacket -# from primaite.simulator.network.transmission.data_link_layer import Frame -# from primaite.simulator.system.services.arp.arp import ARP -# -# -# class RouterARP(ARP): -# """ -# Inherits from ARPCache and adds router-specific ARP packet processing. -# -# :ivar SysLog sys_log: A system log for logging messages. -# :ivar Router router: The router to which this ARP cache belongs. -# """ -# router: Router -# -# def get_arp_cache_mac_address(self, ip_address: IPv4Address) -> Optional[str]: -# arp_entry = self.arp.get(ip_address) -# -# if arp_entry: -# return arp_entry.mac_address -# return None -# -# def get_arp_cache_network_interface(self, ip_address: IPv4Address) -> Optional[RouterInterface]: -# arp_entry = self.arp.get(ip_address) -# if arp_entry: -# return self.software_manager.node.network_interfaces[arp_entry.network_interface_uuid] -# return None -# -# def _process_arp_request(self, arp_packet: ARPPacket, from_network_interface: RouterInterface): -# super()._process_arp_request(arp_packet, from_network_interface) -# self.add_arp_cache_entry( -# ip_address=arp_packet.sender_ip_address, mac_address=arp_packet.sender_mac_addr, -# network_interface=from_network_interface -# ) -# -# # If the target IP matches one of the router's NICs -# for network_interface in self.network_interfaces.values(): -# if network_interface.enabled and network_interface.ip_address == arp_packet.target_ip_address: -# arp_reply = arp_packet.generate_reply(from_network_interface.mac_address) -# self.send_arp_reply(arp_reply) -# return -# -# def _process_arp_reply(self, arp_packet: ARPPacket, from_network_interface: RouterInterface): -# if arp_packet.target_ip_address == from_network_interface.ip_address: -# super()._process_arp_reply(arp_packet, from_network_interface) -# -# def receive(self, payload: Any, session_id: str, **kwargs) -> bool: -# """ -# Processes received data, handling ARP packets. -# -# :param payload: The payload received. -# :param session_id: The session ID associated with the received data. -# :param kwargs: Additional keyword arguments. -# :return: True if the payload was processed successfully, otherwise False. -# """ -# if not super().receive(payload, session_id, **kwargs): -# return False -# -# arp_packet: ARPPacket = payload -# from_network_interface: RouterInterface = kwargs["from_network_interface"] -# -# for network_interface in self.network_interfaces.values(): -# # ARP frame is for this Router -# if network_interface.ip_address == arp_packet.target_ip_address: -# if payload.request: -# self._process_arp_request(arp_packet=arp_packet, from_network_interface=from_network_interface) -# else: -# self._process_arp_reply(arp_packet=arp_packet, from_network_interface=from_network_interface) -# return True -# -# # ARP frame is not for this router, pass back down to Router to continue routing -# frame: Frame = kwargs["frame"] -# self.router.process_frame(frame=frame, from_network_interface=from_network_interface) -# -# return True From cceb6208e04a680927b921ce5c1d866b54e50cdd Mon Sep 17 00:00:00 2001 From: Chris McCarthy Date: Fri, 9 Feb 2024 11:09:44 +0000 Subject: [PATCH 22/39] #2248 - Reset the auto save pcap and syslog to False --- src/primaite/simulator/__init__.py | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/primaite/simulator/__init__.py b/src/primaite/simulator/__init__.py index 97bcd57b..aebd77cf 100644 --- a/src/primaite/simulator/__init__.py +++ b/src/primaite/simulator/__init__.py @@ -12,8 +12,8 @@ class _SimOutput: self._path: Path = ( _PRIMAITE_ROOT.parent.parent / "simulation_output" / datetime.now().strftime("%Y-%m-%d_%H-%M-%S") ) - self.save_pcap_logs: bool = True - self.save_sys_logs: bool = True + self.save_pcap_logs: bool = False + self.save_sys_logs: bool = False @property def path(self) -> Path: From 6b3829dc48175d5711b771bf777ddceb4dec8002 Mon Sep 17 00:00:00 2001 From: Chris McCarthy Date: Fri, 9 Feb 2024 11:37:47 +0000 Subject: [PATCH 23/39] #2248 - Removed redundant Union from single type params --- src/primaite/simulator/network/container.py | 6 ++---- src/primaite/simulator/network/hardware/base.py | 6 +++--- 2 files changed, 5 insertions(+), 7 deletions(-) diff --git a/src/primaite/simulator/network/container.py b/src/primaite/simulator/network/container.py index 2ea2a7fa..b32d2630 100644 --- a/src/primaite/simulator/network/container.py +++ b/src/primaite/simulator/network/container.py @@ -1,4 +1,4 @@ -from typing import Any, Dict, List, Optional, Union +from typing import Any, Dict, List, Optional import matplotlib.pyplot as plt import networkx as nx @@ -272,9 +272,7 @@ class Network(SimComponent): self._node_request_manager.remove_request(name=node.hostname) _LOGGER.info(f"Removed node {node.hostname} from network {self.uuid}") - def connect( - self, endpoint_a: Union[WiredNetworkInterface], endpoint_b: Union[WiredNetworkInterface], **kwargs - ) -> Optional[Link]: + def connect(self, endpoint_a: WiredNetworkInterface, endpoint_b: WiredNetworkInterface, **kwargs) -> Optional[Link]: """ Connect two endpoints on the network by creating a link between their NICs/SwitchPorts. diff --git a/src/primaite/simulator/network/hardware/base.py b/src/primaite/simulator/network/hardware/base.py index f5bd5ff5..55640121 100644 --- a/src/primaite/simulator/network/hardware/base.py +++ b/src/primaite/simulator/network/hardware/base.py @@ -509,9 +509,9 @@ class Link(SimComponent): :param bandwidth: The bandwidth of the Link in Mbps (default is 100 Mbps). """ - endpoint_a: Union[WiredNetworkInterface] + endpoint_a: WiredNetworkInterface "The first WiredNetworkInterface connected to the Link." - endpoint_b: Union[WiredNetworkInterface] + endpoint_b: WiredNetworkInterface "The second WiredNetworkInterface connected to the Link." bandwidth: float = 100.0 "The bandwidth of the Link in Mbps (default is 100 Mbps)." @@ -596,7 +596,7 @@ class Link(SimComponent): return True return False - def transmit_frame(self, sender_nic: Union[WiredNetworkInterface], frame: Frame) -> bool: + def transmit_frame(self, sender_nic: WiredNetworkInterface, frame: Frame) -> bool: """ Send a network frame from one NIC or SwitchPort to another connected NIC or SwitchPort. From d1c3f891bf0ef19fcbccb5e22cb1b4c71aa47514 Mon Sep 17 00:00:00 2001 From: Czar Echavez Date: Fri, 9 Feb 2024 11:41:06 +0000 Subject: [PATCH 24/39] #2258: moving applications to application types - more tests --- src/primaite/game/game.py | 26 +++-- .../configs/basic_switched_network.yaml | 22 +++-- tests/integration_tests/game_configuration.py | 99 +++++++++++++++++-- 3 files changed, 123 insertions(+), 24 deletions(-) diff --git a/src/primaite/game/game.py b/src/primaite/game/game.py index b2b35f26..431db5fb 100644 --- a/src/primaite/game/game.py +++ b/src/primaite/game/game.py @@ -33,12 +33,16 @@ from primaite.simulator.system.services.web_server.web_server import WebServer _LOGGER = getLogger(__name__) -APPLICATION_TYPES_MAPPING = {"WebBrowser": WebBrowser, "DataManipulationBot": DataManipulationBot, "DoSBot": DoSBot} +APPLICATION_TYPES_MAPPING = { + "WebBrowser": WebBrowser, + "DatabaseClient": DatabaseClient, + "DataManipulationBot": DataManipulationBot, + "DoSBot": DoSBot, +} SERVICE_TYPES_MAPPING = { "DNSClient": DNSClient, "DNSServer": DNSServer, - "DatabaseClient": DatabaseClient, "DatabaseService": DatabaseService, "WebServer": WebServer, "FTPClient": FTPClient, @@ -262,22 +266,21 @@ class PrimaiteGame: else: _LOGGER.warning(f"service type not found {service_type}") # service-dependent options - if service_type == "DatabaseClient": + if service_type == "DNSClient": if "options" in service_cfg: opt = service_cfg["options"] - if "db_server_ip" in opt: - new_service.configure(server_ip_address=IPv4Address(opt["db_server_ip"])) + if "dns_server" in opt: + new_service.dns_server = IPv4Address(opt["dns_server"]) if service_type == "DNSServer": if "options" in service_cfg: opt = service_cfg["options"] if "domain_mapping" in opt: for domain, ip in opt["domain_mapping"].items(): - new_service.dns_register(domain, ip) + new_service.dns_register(domain, IPv4Address(ip)) if service_type == "DatabaseService": if "options" in service_cfg: opt = service_cfg["options"] - if "backup_server_ip" in opt: - new_service.configure_backup(backup_server=IPv4Address(opt["backup_server_ip"])) + new_service.configure_backup(backup_server=IPv4Address(opt.get("backup_server_ip"))) new_service.start() if "applications" in node_cfg: @@ -303,6 +306,13 @@ class PrimaiteGame: port_scan_p_of_success=float(opt.get("port_scan_p_of_success", "0.1")), data_manipulation_p_of_success=float(opt.get("data_manipulation_p_of_success", "0.1")), ) + elif application_type == "DatabaseClient": + if "options" in application_cfg: + opt = application_cfg["options"] + new_application.configure( + server_ip_address=IPv4Address(opt.get("db_server_ip")), + server_password=opt.get("server_password"), + ) elif application_type == "WebBrowser": if "options" in application_cfg: opt = application_cfg["options"] diff --git a/tests/assets/configs/basic_switched_network.yaml b/tests/assets/configs/basic_switched_network.yaml index d86af779..0050a0cb 100644 --- a/tests/assets/configs/basic_switched_network.yaml +++ b/tests/assets/configs/basic_switched_network.yaml @@ -81,6 +81,10 @@ simulation: type: WebBrowser options: target_url: http://arcd.com/users/ + - ref: client_1_database_client + type: DatabaseClient + options: + db_server_ip: 192.168.1.10 - ref: data_manipulation_bot type: DataManipulationBot options: @@ -95,27 +99,25 @@ simulation: payload: SPOOF DATA port_scan_p_of_success: 0.8 services: + - ref: client_1_dns_client + type: DNSClient + options: + dns_server: 192.168.1.10 - ref: client_1_dns_server type: DNSServer options: domain_mapping: - arcd.com: 192.168.1.12 # web server - - ref: client_1_database_client - type: DatabaseClient - options: - db_server_ip: 192.168.10.21 - - ref: client_1_dosbot - type: DoSBot - options: - db_server_ip: 192.168.10.21 + arcd.com: 192.168.1.10 - ref: client_1_database_service type: DatabaseService options: - backup_server_ip: 192.168.10.21 + backup_server_ip: 192.168.1.10 - ref: client_1_web_service type: WebServer - ref: client_1_ftp_server type: FTPServer + - ref: client_1_ntp_client + type: NTPClient - ref: client_1_ntp_server type: NTPServer - ref: client_2 diff --git a/tests/integration_tests/game_configuration.py b/tests/integration_tests/game_configuration.py index 274e8bd6..9db894c5 100644 --- a/tests/integration_tests/game_configuration.py +++ b/tests/integration_tests/game_configuration.py @@ -10,12 +10,18 @@ from primaite.game.agent.interface import ProxyAgent, RandomAgent from primaite.game.game import APPLICATION_TYPES_MAPPING, PrimaiteGame, SERVICE_TYPES_MAPPING from primaite.simulator.network.container import Network from primaite.simulator.network.hardware.nodes.computer import Computer +from primaite.simulator.system.applications.database_client import DatabaseClient from primaite.simulator.system.applications.red_applications.data_manipulation_bot import DataManipulationBot from primaite.simulator.system.applications.red_applications.dos_bot import DoSBot from primaite.simulator.system.applications.web_browser import WebBrowser +from primaite.simulator.system.services.database.database_service import DatabaseService from primaite.simulator.system.services.dns.dns_client import DNSClient +from primaite.simulator.system.services.dns.dns_server import DNSServer from primaite.simulator.system.services.ftp.ftp_client import FTPClient +from primaite.simulator.system.services.ftp.ftp_server import FTPServer from primaite.simulator.system.services.ntp.ntp_client import NTPClient +from primaite.simulator.system.services.ntp.ntp_server import NTPServer +from primaite.simulator.system.services.web_server.web_server import WebServer from tests import TEST_ASSETS_ROOT BASIC_CONFIG = TEST_ASSETS_ROOT / "configs/basic_switched_network.yaml" @@ -33,19 +39,23 @@ def test_example_config(): """Test that the example config can be parsed properly.""" game = load_config(example_config_path()) - assert len(game.agents) == 3 # red, blue and green agent + assert len(game.agents) == 4 # red, blue and 2 green agents - # green agent + # green agent 1 assert game.agents[0].agent_name == "client_2_green_user" assert isinstance(game.agents[0], RandomAgent) + # green agent 2 + assert game.agents[1].agent_name == "client_1_green_user" + assert isinstance(game.agents[1], RandomAgent) + # red agent - assert game.agents[1].agent_name == "client_1_data_manipulation_red_bot" - assert isinstance(game.agents[1], DataManipulationAgent) + assert game.agents[2].agent_name == "client_1_data_manipulation_red_bot" + assert isinstance(game.agents[2], DataManipulationAgent) # blue agent - assert game.agents[2].agent_name == "defender" - assert isinstance(game.agents[2], ProxyAgent) + assert game.agents[3].agent_name == "defender" + assert isinstance(game.agents[3], ProxyAgent) network: Network = game.simulation.network @@ -91,6 +101,16 @@ def test_web_browser_install(): assert web_browser.target_url == "http://arcd.com/users/" +def test_database_client_install(): + """Test that the Database Client service can be configured via config.""" + game = load_config(BASIC_CONFIG) + client_1: Computer = game.simulation.network.get_node_by_hostname("client_1") + + database_client: DatabaseClient = client_1.software_manager.software.get("DatabaseClient") + + assert database_client.server_ip_address == IPv4Address("192.168.1.10") + + def test_data_manipulation_bot_install(): """Test that the data manipulation bot can be configured via config.""" game = load_config(BASIC_CONFIG) @@ -117,3 +137,70 @@ def test_dos_bot_install(): assert dos_bot.dos_intensity == 1.0 # default assert dos_bot.max_sessions == 1000 # default assert dos_bot.repeat is False # default + + +def test_dns_client_install(): + """Test that the DNS Client service can be configured via config.""" + game = load_config(BASIC_CONFIG) + client_1: Computer = game.simulation.network.get_node_by_hostname("client_1") + + dns_client: DNSClient = client_1.software_manager.software.get("DNSClient") + + assert dns_client.dns_server == IPv4Address("192.168.1.10") + + +def test_database_service_install(): + """Test that the Database Service can be configured via config.""" + game = load_config(BASIC_CONFIG) + client_1: Computer = game.simulation.network.get_node_by_hostname("client_1") + + database_service: DatabaseService = client_1.software_manager.software.get("DatabaseService") + + assert database_service.backup_server_ip == IPv4Address("192.168.1.10") + + +def test_web_server_install(): + """Test that the Web Server Service can be configured via config.""" + game = load_config(BASIC_CONFIG) + client_1: Computer = game.simulation.network.get_node_by_hostname("client_1") + + web_server_service: WebServer = client_1.software_manager.software.get("WebServer") + + # config should have also installed database client - web server service should be able to retrieve this + assert web_server_service.software_manager.software.get("DatabaseClient") is not None + + +def test_ftp_client_install(): + """Test that the FTP Client Service can be configured via config.""" + game = load_config(BASIC_CONFIG) + client_1: Computer = game.simulation.network.get_node_by_hostname("client_1") + + ftp_client_service: FTPClient = client_1.software_manager.software.get("FTPClient") + assert ftp_client_service is not None + + +def test_ftp_server_install(): + """Test that the FTP Server Service can be configured via config.""" + game = load_config(BASIC_CONFIG) + client_1: Computer = game.simulation.network.get_node_by_hostname("client_1") + + ftp_server_service: FTPServer = client_1.software_manager.software.get("FTPServer") + assert ftp_server_service is not None + + +def test_ntp_client_install(): + """Test that the NTP Client Service can be configured via config.""" + game = load_config(BASIC_CONFIG) + client_1: Computer = game.simulation.network.get_node_by_hostname("client_1") + + ntp_client_service: NTPClient = client_1.software_manager.software.get("NTPClient") + assert ntp_client_service is not None + + +def test_ntp_server_install(): + """Test that the NTP Server Service can be configured via config.""" + game = load_config(BASIC_CONFIG) + client_1: Computer = game.simulation.network.get_node_by_hostname("client_1") + + ntp_server_service: NTPServer = client_1.software_manager.software.get("NTPServer") + assert ntp_server_service is not None From 58af58810da74e17b5426da1697f229ce1b8dc49 Mon Sep 17 00:00:00 2001 From: Chris McCarthy Date: Fri, 9 Feb 2024 23:29:06 +0000 Subject: [PATCH 25/39] #2205 - Introduced a Firewall class for enhanced network security and control, extending Router functionalities. Updated ACLRule to support IP ranges via wildcard masking for refined traffic filtering. Includes documentation updates. --- CHANGELOG.md | 8 +- docs/source/simulation.rst | 1 + .../network/nodes/firewall.rst | 432 +++++++++++++++ src/primaite/simulator/__init__.py | 4 +- .../hardware/nodes/network/firewall.py | 492 ++++++++++++++++++ .../network/hardware/nodes/network/router.py | 387 ++++++++++---- .../network/transmission/network_layer.py | 6 +- .../network/test_firewall.py | 280 ++++++++++ .../_network/_hardware/nodes/test_acl.py | 330 +++++++++--- 9 files changed, 1759 insertions(+), 181 deletions(-) create mode 100644 docs/source/simulation_components/network/nodes/firewall.rst create mode 100644 src/primaite/simulator/network/hardware/nodes/network/firewall.py create mode 100644 tests/integration_tests/network/test_firewall.py diff --git a/CHANGELOG.md b/CHANGELOG.md index 9716fd0e..a18e4d2f 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -71,7 +71,12 @@ SessionManager. - Detailed descriptions of the Session Manager and Software Manager functionalities, including their roles in managing sessions, software services, and applications within the simulation. - Documentation for the Packet Capture (PCAP) service and SysLog functionality, highlighting their importance in logging network frames and system events, respectively. - Expanded documentation on network devices such as Routers, Switches, Computers, and Switch Nodes, explaining their specific processing logic and protocol support. - +- **Firewall Node**: Introduced the `Firewall` class extending the functionality of the existing `Router` class. The `Firewall` class incorporates advanced features to scrutinize, direct, and filter traffic between various network zones, guided by predefined security rules and policies. Key functionalities include: + - Access Control Lists (ACLs) for traffic filtering based on IP addresses, protocols, and port numbers. + - Network zone segmentation for managing traffic across external, internal, and DMZ (De-Militarized Zone) networks. + - Interface configuration to establish connectivity and define network parameters for external, internal, and DMZ interfaces. + - Protocol and service management to oversee traffic and enforce security policies. + - Dynamic traffic processing and filtering to ensure network security and integrity. ### Changed - Integrated the RouteTable into the Routers frame processing. @@ -82,6 +87,7 @@ SessionManager. - Standardised the way network interfaces are accessed across all `Node` subclasses (`HostNode`, `Router`, `Switch`) by maintaining a comprehensive `network_interface` attribute. This attribute captures all network interfaces by their port number, streamlining the management and interaction with network interfaces across different types of nodes. - Refactored all tests to utilise new `Node` subclasses (`Computer`, `Server`, `Router`, `Switch`) instead of creating generic `Node` instances and manually adding network interfaces. This change aligns test setups more closely with the intended use cases and hierarchies within the network simulation framework. - Updated all tests to employ the `Network()` class for managing nodes and their connections, ensuring a consistent and structured approach to setting up network topologies in testing scenarios. +- **ACLRule Wildcard Masking**: Updated the `ACLRule` class to support IP ranges using wildcard masking. This enhancement allows for more flexible and granular control over traffic filtering, enabling the specification of broader or more specific IP address ranges in ACL rules. ### Removed diff --git a/docs/source/simulation.rst b/docs/source/simulation.rst index d85a1449..56761517 100644 --- a/docs/source/simulation.rst +++ b/docs/source/simulation.rst @@ -22,6 +22,7 @@ Contents simulation_components/network/nodes/host_node simulation_components/network/nodes/network_node simulation_components/network/nodes/router + simulation_components/network/nodes/firewall simulation_components/network/switch simulation_components/network/network simulation_components/system/internal_frame_processing diff --git a/docs/source/simulation_components/network/nodes/firewall.rst b/docs/source/simulation_components/network/nodes/firewall.rst new file mode 100644 index 00000000..39f804c4 --- /dev/null +++ b/docs/source/simulation_components/network/nodes/firewall.rst @@ -0,0 +1,432 @@ +.. only:: comment + + © Crown-owned copyright 2023, Defence Science and Technology Laboratory UK + +######## +Firewall +######## + +The ``firewall.py`` module is a cornerstone in network security within the PrimAITE simulation, designed to simulate +the functionalities of a firewall in monitoring, controlling, and securing network traffic. + +Firewall Class +-------------- + +The ``Firewall`` class extends the ``Router`` class, incorporating advanced capabilities to scrutinise, direct, +and filter traffic between various network zones, guided by predefined security rules and policies. + +Key Features +============ + + +- **Access Control Lists (ACLs):** Employs ACLs to establish security rules for permitting or denying traffic + based on IP addresses, protocols, and port numbers, offering detailed oversight of network traffic. +- **Network Zone Segmentation:** Facilitates network division into distinct zones, including internal, external, + and DMZ (De-Militarized Zone), each governed by specific inbound and outbound traffic rules. +- **Interface Configuration:** Enables the configuration of network interfaces for connectivity to external, + internal, and DMZ networks, including setting up IP addressing and subnetting. +- **Protocol and Service Management:** Oversees and filters traffic across different protocols and services, + enforcing adherence to established security policies. +- **Dynamic Traffic Processing:** Actively processes incoming and outgoing traffic via relevant ACLs, determining + whether to forward or block based on the evaluation of rules. +- **Logging and Diagnostics:** Integrates with ``SysLog`` for detailed logging of firewall actions, supporting + security monitoring and incident investigation. + +Operations +========== + +- **Rule Definition and Management:** Permits the creation and administration of ACL rules for precise traffic + control, enabling the firewall to serve as an effective guard against unauthorised access. +- **Traffic Forwarding and Filtering:** Assesses network frames against ACL rules to allow or block traffic, + forwarding permitted traffic towards its destination whilst obstructing malicious or unauthorised requests. +- **Interface and Zone Configuration:** Provides mechanisms for configuring and managing network interfaces, + aligning with logical network architecture and security zoning requisites. + +Configuring Interfaces +====================== + +To set up firewall interfaces, allocate IP addresses and subnet masks to the external, internal, and DMZ interfaces +using the respective configuration methods: + +.. code-block:: python + + firewall.configure_external_port(ip_address="10.0.0.1", subnet_mask="255.255.255.0") + firewall.configure_internal_port(ip_address="192.168.1.1", subnet_mask="255.255.255.0") + firewall.configure_dmz_port(ip_address="172.16.0.1", subnet_mask="255.255.255.0") + + +Firewall ACLs +============= + +In the PrimAITE network simulation, six Access Control Lists (ACLs) are crucial for delineating and enforcing +comprehensive network security measures. These ACLs, designated as internal inbound, internal outbound, DMZ inbound, +DMZ outbound, external inbound, and external outbound, each serve a specific role in orchestrating the flow of data +through the network. They allow for meticulous control of traffic entering, exiting, and moving within the network, +ensuring robust protection against unauthorised access and potential cyber threats. By leveraging these ACLs both +individually and collectively, users can simulate a multi-layered security architecture. + +Internal Inbound ACL +^^^^^^^^^^^^^^^^^^^^ + +This ACL controls incoming traffic from the external network and DMZ to the internal network. It's crucial for +preventing unauthorised access to internal resources. By filtering incoming requests, it ensures that only legitimate +and necessary traffic can enter the internal network, protecting sensitive data and systems. + +Internal Outbound ACL +^^^^^^^^^^^^^^^^^^^^^ + +The internal outbound ACL manages traffic leaving the internal network to the external network or DMZ. It can restrict +internal users or systems from accessing potentially harmful external sites or services, mitigate data exfiltration +risks. + +DMZ Inbound ACL +^^^^^^^^^^^^^^^ + +This ACL regulates access to services hosted in the DMZ from the external network and internal network. Since the DMZ +hosts public-facing services like web and email servers, the DMZ inbound ACL is pivotal in allowing necessary access +while blocking malicious or unauthorised attempts, thus serving as a first line of defence. + +DMZ Outbound ACL +^^^^^^^^^^^^^^^^ + +The ACL controls traffic from DMZ to the external network and internal network. It's used to restrict the DMZ services +from initiating unauthorised connections, which is essential for preventing compromised DMZ services from being used +as launchpads for attacks or data exfiltration. + +External Inbound ACL +^^^^^^^^^^^^^^^^^^^^ + +This ACL filters all incoming traffic from the external network towards the internal network or DMZ. It's instrumental +in blocking unwanted or potentially harmful external traffic, ensuring that only traffic conforming to the security +policies is allowed into the network. **This ACL should only be used when the rule applies to both internal and DMZ +networks.** + +External Outbound ACL +^^^^^^^^^^^^^^^^^^^^^ + +This ACL governs traffic leaving the internal network or DMZ to the external network. It plays a critical role in data +loss prevention (DLP) by restricting the types of data and services that internal users and systems can access or +interact with on external networks. **This ACL should only be used when the rule applies to both internal and DMZ +networks.** + +Using ACLs Together +^^^^^^^^^^^^^^^^^^^ + +When these ACLs are used in concert, they create a robust security matrix that controls traffic flow in all directions: +into the internal network, out of the internal network, into the DMZ, out of the DMZ, and between these networks and +the external world. For example, while the external inbound ACL might block all incoming SSH requests to protect both +the internal network and DMZ, the internal outbound ACL could allow SSH access to specific external servers for +management purposes. Simultaneously, the DMZ inbound ACL might permit HTTP and HTTPS traffic to specific servers to +provide access to web services while the DMZ outbound ACL ensures these servers cannot make unauthorised outbound +connections. + +By effectively configuring and managing these ACLs, users can establish and experiment with detailed security policies +that are finely tuned to their simulated network's unique requirements and threat models, achieving granular oversight +over traffic flows. This not only enables secure simulated interactions and data exchanges within PrimAITE environments +but also fortifies the virtual network against unauthorised access and cyber threats, mirroring real-world network +security practices. + + +ACL Configuration Examples +========================== + +The subsequent examples provide detailed illustrations on configuring ACL rules within PrimAITE's firewall setup, +addressing various scenarios that encompass external attempts to access resources not only within the internal network +but also within the DMZ. These examples reflect the firewall's specific port configurations and showcase the +versatility and control that ACLs offer in managing network traffic, ensuring that security policies are precisely +enforced. Each example highlights different aspects of ACL usage, from basic traffic filtering to more complex +scenarios involving specific service access and protection against external threats. + +**Blocking External Traffic to Internal Network** + +To prevent all external traffic from accessing the internal network, with exceptions for approved services: + +.. code-block:: python + + # Default rule to deny all external traffic to the internal network + firewall.internal_inbound_acl.add_rule( + action=ACLAction.DENY, + src_ip_address="0.0.0.0", + src_wildcard_mask="255.255.255.255", + dst_ip_address="192.168.1.0", + dst_wildcard_mask="0.0.0.255", + position=1 + ) + + # Exception rule to allow HTTP traffic from external to internal network + firewall.internal_inbound_acl.add_rule( + action=ACLAction.PERMIT, + protocol=IPProtocol.TCP, + dst_port=Port.HTTP, + dst_ip_address="192.168.1.0", + dst_wildcard_mask="0.0.0.255", + position=2 + ) + +**Allowing External Access to Specific Services in DMZ** + +To enable external traffic to access specific services hosted within the DMZ: + +.. code-block:: python + + # Allow HTTP and HTTPS traffic to the DMZ + firewall.dmz_inbound_acl.add_rule( + action=ACLAction.PERMIT, + protocol=IPProtocol.TCP, + dst_port=Port.HTTP, + dst_ip_address="172.16.0.0", + dst_wildcard_mask="0.0.0.255", + position=3 + ) + firewall.dmz_inbound_acl.add_rule( + action=ACLAction.PERMIT, + protocol=IPProtocol.TCP, + dst_port=Port.HTTPS, + dst_ip_address="172.16.0.0", + dst_wildcard_mask="0.0.0.255", + position=4 + ) + +**Edge Case - Permitting External SSH Access to a Specific Internal Server** + +To permit SSH access from a designated external IP to a specific server within the internal network: + +.. code-block:: python + + # Allow SSH from a specific external IP to an internal server + firewall.internal_inbound_acl.add_rule( + action=ACLAction.PERMIT, + protocol=IPProtocol.TCP, + src_ip_address="10.0.0.2", + dst_port=Port.SSH, + dst_ip_address="192.168.1.10", + position=5 + ) + +**Restricting Access to Internal Database Server** + +To limit database server access to selected external IP addresses: + +.. code-block:: python + + # Allow PostgreSQL traffic from an authorized external IP to the internal DB server + firewall.internal_inbound_acl.add_rule( + action=ACLAction.PERMIT, + protocol=IPProtocol.TCP, + src_ip_address="10.0.0.3", + dst_port=Port.POSTGRES_SERVER, + dst_ip_address="192.168.1.20", + position=6 + ) + + # Deny all other PostgreSQL traffic from external sources + firewall.internal_inbound_acl.add_rule( + action=ACLAction.DENY, + protocol=IPProtocol.TCP, + dst_port=Port.POSTGRES_SERVER, + dst_ip_address="192.168.1.0", + dst_wildcard_mask="0.0.0.255", + position=7 + ) + +**Permitting DMZ Web Server Access while Blocking Specific Threats* + +To authorize HTTP/HTTPS access to a DMZ-hosted web server, excluding known malicious IPs: + +.. code-block:: python + + # Deny access from a known malicious IP to any DMZ service + firewall.dmz_inbound_acl.add_rule( + action=ACLAction.DENY, + src_ip_address="10.0.0.4", + dst_ip_address="172.16.0.0", + dst_wildcard_mask="0.0.0.255", + position=8 + ) + + # Allow HTTP/HTTPS traffic to the DMZ web server + firewall.dmz_inbound_acl.add_rule( + action=ACLAction.PERMIT, + protocol=IPProtocol.TCP, + dst_port=Port.HTTP, + dst_ip_address="172.16.0.2", + position=9 + ) + firewall.dmz_inbound_acl.add_rule( + action=ACLAction.PERMIT, + protocol=IPProtocol.TCP, + dst_port=Port.HTTPS, + dst_ip_address="172.16.0.2", + position=10 + ) + +**Enabling Internal to DMZ Restricted Access** + +To facilitate restricted access from the internal network to DMZ-hosted services: + +.. code-block:: python + + # Permit specific internal application server HTTPS access to a DMZ-hosted API + firewall.internal_outbound_acl.add_rule( + action=ACLAction.PERMIT, + protocol=IPProtocol.TCP, + src_ip_address="192.168.1.30", # Internal application server IP + dst_port=Port.HTTPS, + dst_ip_address="172.16.0.3", # DMZ API server IP + position=11 + ) + + # Deny all other traffic from the internal network to the DMZ + firewall.internal_outbound_acl.add_rule( + action=ACLAction.DENY, + src_ip_address="192.168.1.0", + src_wildcard_mask="0.0.0.255", + dst_ip_address="172.16.0.0", + dst_wildcard_mask="0.0.0.255", + position=12 + ) + + # Corresponding rule in DMZ inbound ACL to allow the traffic from the specific internal server + firewall.dmz_inbound_acl.add_rule( + action=ACLAction.PERMIT, + protocol=IPProtocol.TCP, + src_ip_address="192.168.1.30", # Ensuring this specific source is allowed + dst_port=Port.HTTPS, + dst_ip_address="172.16.0.3", # DMZ API server IP + position=13 + ) + + # Deny all other internal traffic to the specific DMZ API server + firewall.dmz_inbound_acl.add_rule( + action=ACLAction.DENY, + src_ip_address="192.168.1.0", + src_wildcard_mask="0.0.0.255", + dst_port=Port.HTTPS, + dst_ip_address="172.16.0.3", # DMZ API server IP + position=14 + ) + +**Blocking Unwanted External Access** + +To block all SSH access attempts from the external network: + +.. code-block:: python + + # Deny all SSH traffic from any external source + firewall.external_inbound_acl.add_rule( + action=ACLAction.DENY, + protocol=IPProtocol.TCP, + dst_port=Port.SSH, + position=1 + ) + +**Allowing Specific External Communication** + +To allow the internal network to initiate HTTP connections to the external network: + +.. code-block:: python + + # Permit outgoing HTTP traffic from the internal network to any external destination + firewall.external_outbound_acl.add_rule( + action=ACLAction.PERMIT, + protocol=IPProtocol.TCP, + dst_port=Port.HTTP, + position=2 + ) + + +The examples above demonstrate the versatility and power of ACLs in crafting nuanced security policies. By combining +rules that specify permitted and denied traffic, both broadly and narrowly defined, administrators can construct +a firewall policy that safeguards network resources while ensuring necessary access is maintained. + +Show Rules Function +=================== + +The show_rules function in the Firewall class displays the configurations of Access Control Lists (ACLs) within a +network firewall. It presents a comprehensive table detailing the rules that govern the filtering and management of +network traffic. + +**Functionality:** + +This function showcases each rule in an ACL, outlining its: + +- **Index**: The rule's position within the ACL. +- **Action**: Specifies whether to permit or deny matching traffic. +- **Protocol**: The network protocol to which the rule applies. +- **Src IP and Dst IP**: Source and destination IP addresses. +- **Src Wildcard and Dst** Wildcard: Wildcard masks for source and destination IP ranges. +- **Src Port and Dst Port**: Source and destination ports. +- **Hit Count**: The number of times the rule has been matched by traffic. + +Example Output: + +.. code-block:: text + + +---------------------------------------------------------------------------------------------------------------+ + | firewall_1 - External Inbound Access Control List | + +-------+--------+----------+--------+--------------+-----------+--------+--------------+-----------+-----------+ + | Index | Action | Protocol | Src IP | Src Wildcard | Src Port | Dst IP | Dst Wildcard | Dst Port | Hit Count | + +-------+--------+----------+--------+--------------+-----------+--------+--------------+-----------+-----------+ + | 22 | PERMIT | ANY | ANY | ANY | 219 (ARP) | ANY | ANY | 219 (ARP) | 1 | + | 23 | PERMIT | ICMP | ANY | ANY | ANY | ANY | ANY | ANY | 0 | + | 24 | PERMIT | ANY | ANY | ANY | ANY | ANY | ANY | ANY | 2 | + +-------+--------+----------+--------+--------------+-----------+--------+--------------+-----------+-----------+ + + +---------------------------------------------------------------------------------------------------------------+ + | firewall_1 - External Outbound Access Control List | + +-------+--------+----------+--------+--------------+-----------+--------+--------------+-----------+-----------+ + | Index | Action | Protocol | Src IP | Src Wildcard | Src Port | Dst IP | Dst Wildcard | Dst Port | Hit Count | + +-------+--------+----------+--------+--------------+-----------+--------+--------------+-----------+-----------+ + | 22 | PERMIT | ANY | ANY | ANY | 219 (ARP) | ANY | ANY | 219 (ARP) | 0 | + | 23 | PERMIT | ICMP | ANY | ANY | ANY | ANY | ANY | ANY | 0 | + | 24 | PERMIT | ANY | ANY | ANY | ANY | ANY | ANY | ANY | 2 | + +-------+--------+----------+--------+--------------+-----------+--------+--------------+-----------+-----------+ + + +---------------------------------------------------------------------------------------------------------------+ + | firewall_1 - Internal Inbound Access Control List | + +-------+--------+----------+--------+--------------+-----------+--------+--------------+-----------+-----------+ + | Index | Action | Protocol | Src IP | Src Wildcard | Src Port | Dst IP | Dst Wildcard | Dst Port | Hit Count | + +-------+--------+----------+--------+--------------+-----------+--------+--------------+-----------+-----------+ + | 1 | PERMIT | ANY | ANY | ANY | 123 (NTP) | ANY | ANY | 123 (NTP) | 1 | + | 22 | PERMIT | ANY | ANY | ANY | 219 (ARP) | ANY | ANY | 219 (ARP) | 0 | + | 23 | PERMIT | ICMP | ANY | ANY | ANY | ANY | ANY | ANY | 0 | + | 24 | DENY | ANY | ANY | ANY | ANY | ANY | ANY | ANY | 0 | + +-------+--------+----------+--------+--------------+-----------+--------+--------------+-----------+-----------+ + + +---------------------------------------------------------------------------------------------------------------+ + | firewall_1 - Internal Outbound Access Control List | + +-------+--------+----------+--------+--------------+-----------+--------+--------------+-----------+-----------+ + | Index | Action | Protocol | Src IP | Src Wildcard | Src Port | Dst IP | Dst Wildcard | Dst Port | Hit Count | + +-------+--------+----------+--------+--------------+-----------+--------+--------------+-----------+-----------+ + | 1 | PERMIT | ANY | ANY | ANY | 123 (NTP) | ANY | ANY | 123 (NTP) | 1 | + | 22 | PERMIT | ANY | ANY | ANY | 219 (ARP) | ANY | ANY | 219 (ARP) | 1 | + | 23 | PERMIT | ICMP | ANY | ANY | ANY | ANY | ANY | ANY | 0 | + | 24 | DENY | ANY | ANY | ANY | ANY | ANY | ANY | ANY | 0 | + +-------+--------+----------+--------+--------------+-----------+--------+--------------+-----------+-----------+ + + +---------------------------------------------------------------------------------------------------------------+ + | firewall_1 - DMZ Inbound Access Control List | + +-------+--------+----------+--------+--------------+-----------+--------+--------------+-----------+-----------+ + | Index | Action | Protocol | Src IP | Src Wildcard | Src Port | Dst IP | Dst Wildcard | Dst Port | Hit Count | + +-------+--------+----------+--------+--------------+-----------+--------+--------------+-----------+-----------+ + | 1 | PERMIT | ANY | ANY | ANY | 123 (NTP) | ANY | ANY | 123 (NTP) | 1 | + | 22 | PERMIT | ANY | ANY | ANY | 219 (ARP) | ANY | ANY | 219 (ARP) | 0 | + | 23 | PERMIT | ICMP | ANY | ANY | ANY | ANY | ANY | ANY | 0 | + | 24 | DENY | ANY | ANY | ANY | ANY | ANY | ANY | ANY | 0 | + +-------+--------+----------+--------+--------------+-----------+--------+--------------+-----------+-----------+ + + +---------------------------------------------------------------------------------------------------------------+ + | firewall_1 - DMZ Outbound Access Control List | + +-------+--------+----------+--------+--------------+-----------+--------+--------------+-----------+-----------+ + | Index | Action | Protocol | Src IP | Src Wildcard | Src Port | Dst IP | Dst Wildcard | Dst Port | Hit Count | + +-------+--------+----------+--------+--------------+-----------+--------+--------------+-----------+-----------+ + | 1 | PERMIT | ANY | ANY | ANY | 123 (NTP) | ANY | ANY | 123 (NTP) | 1 | + | 22 | PERMIT | ANY | ANY | ANY | 219 (ARP) | ANY | ANY | 219 (ARP) | 1 | + | 23 | PERMIT | ICMP | ANY | ANY | ANY | ANY | ANY | ANY | 0 | + | 24 | DENY | ANY | ANY | ANY | ANY | ANY | ANY | ANY | 0 | + +-------+--------+----------+--------+--------------+-----------+--------+--------------+-----------+-----------+ + + +The ``firewall.py`` module within PrimAITE empowers users to accurately model and simulate the pivotal role of +firewalls in network security. It provides detailed command over traffic flow and enforces security policies to safeguard +networked assets. diff --git a/src/primaite/simulator/__init__.py b/src/primaite/simulator/__init__.py index aebd77cf..97bcd57b 100644 --- a/src/primaite/simulator/__init__.py +++ b/src/primaite/simulator/__init__.py @@ -12,8 +12,8 @@ class _SimOutput: self._path: Path = ( _PRIMAITE_ROOT.parent.parent / "simulation_output" / datetime.now().strftime("%Y-%m-%d_%H-%M-%S") ) - self.save_pcap_logs: bool = False - self.save_sys_logs: bool = False + self.save_pcap_logs: bool = True + self.save_sys_logs: bool = True @property def path(self) -> Path: diff --git a/src/primaite/simulator/network/hardware/nodes/network/firewall.py b/src/primaite/simulator/network/hardware/nodes/network/firewall.py new file mode 100644 index 00000000..bccfeab1 --- /dev/null +++ b/src/primaite/simulator/network/hardware/nodes/network/firewall.py @@ -0,0 +1,492 @@ +from typing import Dict, Final, Optional, Union + +from prettytable import MARKDOWN, PrettyTable +from pydantic import validate_call + +from primaite.simulator.network.hardware.nodes.network.router import ( + AccessControlList, + ACLAction, + Router, + RouterInterface, +) +from primaite.simulator.network.transmission.data_link_layer import Frame +from primaite.simulator.system.core.sys_log import SysLog +from primaite.utils.validators import IPV4Address + +EXTERNAL_PORT_ID: Final[int] = 1 +"""The Firewall port ID of the external port.""" +INTERNAL_PORT_ID: Final[int] = 2 +"""The Firewall port ID of the internal port.""" +DMZ_PORT_ID: Final[int] = 3 +"""The Firewall port ID of the DMZ port.""" + + +class Firewall(Router): + """ + A Firewall class that extends the functionality of a Router. + + The Firewall class acts as a network security system that monitors and controls incoming and outgoing + network traffic based on predetermined security rules. It is an intermediary between internal and external + networks (including DMZ - De-Militarized Zone), ensuring that all inbound and outbound traffic complies with + the security policies. + + The Firewall employs Access Control Lists (ACLs) to filter traffic. Both the internal and DMZ ports have both + inbound and outbound ACLs that determine what traffic is allowed to pass. + + In addition to the security functions, the Firewall can also perform some routing functions similar to a Router, + forwarding packets between its interfaces based on the destination IP address. + + Usage: + To utilise the Firewall class, instantiate it with a hostname and optionally specify sys_log for logging. + Configure the internal, external, and DMZ ports with IP addresses and subnet masks. Define ACL rules to + permit or deny traffic based on your security policies. The Firewall will process frames based on these + rules, determining whether to allow or block traffic at each network interface. + + Example: + >>> from primaite.simulator.network.transmission.network_layer import IPProtocol + >>> from primaite.simulator.network.transmission.transport_layer import Port + >>> firewall = Firewall(hostname="Firewall1") + >>> firewall.configure_internal_port(ip_address="192.168.1.1", subnet_mask="255.255.255.0") + >>> firewall.configure_external_port(ip_address="10.0.0.1", subnet_mask="255.255.255.0") + >>> firewall.configure_dmz_port(ip_address="172.16.0.1", subnet_mask="255.255.255.0") + >>> # Permit HTTP traffic to the DMZ + >>> firewall.dmz_inbound_acl.add_rule( + ... action=ACLAction.PERMIT, + ... protocol=IPProtocol.TCP, + ... dst_port=Port.HTTP, + ... src_ip_address="0.0.0.0", + ... src_wildcard_mask="0.0.0.0", + ... dst_ip_address="172.16.0.0", + ... dst_wildcard_mask="0.0.0.255" + ... ) + + :ivar str hostname: The Firewall hostname. + """ + + internal_inbound_acl: Optional[AccessControlList] = None + """Access Control List for managing entering the internal network.""" + + internal_outbound_acl: Optional[AccessControlList] = None + """Access Control List for managing traffic leaving the internal network.""" + + dmz_inbound_acl: Optional[AccessControlList] = None + """Access Control List for managing traffic entering the DMZ.""" + + dmz_outbound_acl: Optional[AccessControlList] = None + """Access Control List for managing traffic leaving the DMZ.""" + + external_inbound_acl: Optional[AccessControlList] = None + """Access Control List for managing traffic entering from an external network.""" + + external_outbound_acl: Optional[AccessControlList] = None + """Access Control List for managing traffic leaving towards an external network.""" + + def __init__(self, hostname: str, **kwargs): + if not kwargs.get("sys_log"): + kwargs["sys_log"] = SysLog(hostname) + + super().__init__(hostname=hostname, num_ports=3, **kwargs) + + # Initialise ACLs for internal and dmz interfaces with a default DENY policy + self.internal_inbound_acl = AccessControlList( + sys_log=kwargs["sys_log"], implicit_action=ACLAction.DENY, name=f"{hostname} - Internal Inbound" + ) + self.internal_outbound_acl = AccessControlList( + sys_log=kwargs["sys_log"], implicit_action=ACLAction.DENY, name=f"{hostname} - Internal Outbound" + ) + self.dmz_inbound_acl = AccessControlList( + sys_log=kwargs["sys_log"], implicit_action=ACLAction.DENY, name=f"{hostname} - DMZ Inbound" + ) + self.dmz_outbound_acl = AccessControlList( + sys_log=kwargs["sys_log"], implicit_action=ACLAction.DENY, name=f"{hostname} - DMZ Outbound" + ) + + # external ACLs should have a default PERMIT policy + self.external_inbound_acl = AccessControlList( + sys_log=kwargs["sys_log"], implicit_action=ACLAction.PERMIT, name=f"{hostname} - External Inbound" + ) + self.external_outbound_acl = AccessControlList( + sys_log=kwargs["sys_log"], implicit_action=ACLAction.PERMIT, name=f"{hostname} - External Outbound" + ) + + self.set_original_state() + + def set_original_state(self): + """Set the original state for the Firewall.""" + super().set_original_state() + vals_to_include = { + "internal_port", + "external_port", + "dmz_port", + "internal_inbound_acl", + "internal_outbound_acl", + "dmz_inbound_acl", + "dmz_outbound_acl", + } + self._original_state.update(self.model_dump(include=vals_to_include)) + + def describe_state(self) -> Dict: + """ + Describes the current state of the Firewall. + + :return: A dictionary representing the current state. + """ + state = super().describe_state() + + state.update( + { + "internal_port": self.internal_port.describe_state(), + "external_port": self.external_port.describe_state(), + "dmz_port": self.dmz_port.describe_state(), + "internal_inbound_acl": self.internal_inbound_acl.describe_state(), + "internal_outbound_acl": self.internal_outbound_acl.describe_state(), + "dmz_inbound_acl": self.dmz_inbound_acl.describe_state(), + "dmz_outbound_acl": self.dmz_outbound_acl.describe_state(), + } + ) + + return state + + def show(self, markdown: bool = False): + """ + Displays the current configuration of the firewall's network interfaces in a table format. + + The table includes information about each port (External, Internal, DMZ), their MAC addresses, IP + configurations, link speeds, and operational status. The output can be formatted as Markdown if specified. + + :param markdown: If True, formats the output table in Markdown style. Useful for documentation or reporting + purposes within Markdown-compatible platforms. + """ + table = PrettyTable(["Port", "MAC Address", "Address", "Speed", "Status"]) + if markdown: + table.set_style(MARKDOWN) + table.align = "l" + table.title = f"{self.hostname} Network Interfaces" + ports = {"External": self.external_port, "Internal": self.internal_port, "DMZ": self.dmz_port} + for port, network_interface in ports.items(): + table.add_row( + [ + port, + network_interface.mac_address, + f"{network_interface.ip_address}/{network_interface.ip_network.prefixlen}", + network_interface.speed, + "Enabled" if network_interface.enabled else "Disabled", + ] + ) + print(table) + + def show_rules(self, external: bool = True, internal: bool = True, dmz: bool = True, markdown: bool = False): + """ + Prints the configured ACL rules for each specified network zone of the firewall. + + This method allows selective viewing of ACL rules applied to external, internal, and DMZ interfaces, providing + a clear overview of the firewall's current traffic filtering policies. Each section can be independently + toggled. + + :param external: If True, shows ACL rules for external interfaces. + :param internal: If True, shows ACL rules for internal interfaces. + :param dmz: If True, shows ACL rules for DMZ interfaces. + :param markdown: If True, formats the output in Markdown, enhancing readability in Markdown-compatible viewers. + """ + print(f"{self.hostname} Firewall Rules") + print() + if external: + self.external_inbound_acl.show(markdown) + print() + self.external_outbound_acl.show(markdown) + print() + if internal: + self.internal_inbound_acl.show(markdown) + print() + self.internal_outbound_acl.show(markdown) + print() + if dmz: + self.dmz_inbound_acl.show(markdown) + print() + self.dmz_outbound_acl.show(markdown) + print() + + def receive_frame(self, frame: Frame, from_network_interface: RouterInterface): + """ + Receive a frame and process it. + + Acts as the primary entry point for all network frames arriving at the Firewall, determining the flow of + traffic based on the source network interface controller (NIC) and applying the appropriate Access Control + List (ACL) rules. + + This method categorizes the incoming traffic into three main pathways based on the source NIC: external inbound, + internal outbound, and DMZ (De-Militarized Zone) outbound. It plays a crucial role in enforcing the firewall's + security policies by directing each frame to the corresponding processing method that evaluates it against + specific ACL rules. + + Based on the originating NIC: + - Frames from the external port are processed as external inbound traffic, potentially destined for either the + DMZ or the internal network. + - Frames from the internal port are treated as internal outbound traffic, aimed at reaching the external + network or a service within the DMZ. + - Frames from the DMZ port are handled as DMZ outbound traffic, with potential destinations including the + internal network or the external network. + + :param frame: The network frame to be processed. + :param from_network_interface: The network interface controller from which the frame is coming. Used to + determine the direction of the traffic (inbound or outbound) and the zone (external, internal, + DMZ) it belongs to. + """ + # If the frame comes from the external port, it's considered as external inbound traffic + if from_network_interface == self.external_port: + self._process_external_inbound_frame(frame, from_network_interface) + return + # If the frame comes from the internal port, it's considered as internal outbound traffic + elif from_network_interface == self.internal_port: + self._process_internal_outbound_frame(frame, from_network_interface) + return + # If the frame comes from the DMZ port, it's considered as DMZ outbound traffic + elif from_network_interface == self.dmz_port: + self._process_dmz_outbound_frame(frame, from_network_interface) + return + + def _process_external_inbound_frame(self, frame: Frame, from_network_interface: RouterInterface) -> None: + """ + Process frames arriving from the external network. + + Determines the path for frames based on their destination IP addresses and ACL rules for the external inbound + interface. Frames destined for the DMZ or internal network are forwarded accordingly, if allowed by the ACL. + + If a frame is permitted by the ACL, it is either passed to the session manager (if applicable) or forwarded to + the appropriate network zone (DMZ/internal). Denied frames are logged and dropped. + + :param frame: The frame to be processed, containing network layer and transport layer information. + :param from_network_interface: The interface on the firewall through which the frame was received. + """ + # check if External Inbound ACL Rules permit frame + permitted, rule = self.external_inbound_acl.is_permitted(frame) + if not permitted: + self.sys_log.info(f"Frame blocked at interface {from_network_interface} by rule {rule}") + return + else: + self.software_manager.arp.add_arp_cache_entry( + ip_address=frame.ip.src_ip_address, + mac_address=frame.ethernet.src_mac_addr, + network_interface=from_network_interface, + ) + + if self.check_send_frame_to_session_manager(frame): + # Port is open on this Router so pass Frame up to session manager first + self.session_manager.receive_frame(frame, from_network_interface) + else: + # If the destination IP is within the DMZ network, process the frame as DMZ inbound + if frame.ip.dst_ip_address in self.dmz_port.ip_network: + self._process_dmz_inbound_frame(frame, from_network_interface) + else: + # Otherwise, process the frame as internal inbound + self._process_internal_inbound_frame(frame, from_network_interface) + + def _process_external_outbound_frame(self, frame: Frame, from_network_interface: RouterInterface) -> None: + """ + Process frames that are outbound towards the external network. + + :param frame: The frame to be processed. + :param from_network_interface: The network interface controller from which the frame is coming. + :param re_attempt: Indicates if the processing is a re-attempt, defaults to False. + """ + # check if External Outbound ACL Rules permit frame + permitted, rule = self.external_outbound_acl.is_permitted(frame=frame) + if not permitted: + self.sys_log.info(f"Frame blocked at interface {from_network_interface} by rule {rule}") + return + + self.process_frame(frame=frame, from_network_interface=from_network_interface) + + def _process_internal_inbound_frame(self, frame: Frame, from_network_interface: RouterInterface) -> None: + """ + Process frames that are inbound towards the internal LAN. + + This method is responsible for handling frames coming from either the external network or the DMZ towards + the internal LAN. It checks the frames against the internal inbound ACL to decide whether to allow or deny + the traffic, and take appropriate actions. + + :param frame: The frame to be processed. + :param from_network_interface: The network interface controller from which the frame is coming. + :param re_attempt: Indicates if the processing is a re-attempt, defaults to False. + """ + # check if Internal Inbound ACL Rules permit frame + permitted, rule = self.internal_inbound_acl.is_permitted(frame=frame) + if not permitted: + self.sys_log.info(f"Frame blocked at interface {from_network_interface} by rule {rule}") + return + + self.process_frame(frame=frame, from_network_interface=from_network_interface) + + def _process_internal_outbound_frame(self, frame: Frame, from_network_interface: RouterInterface) -> None: + """ + Process frames that are outbound from the internal network. + + This method handles frames that are leaving the internal network. Depending on the destination IP address, + the frame may be forwarded to the DMZ or to the external network. + + :param frame: The frame to be processed. + :param from_network_interface: The network interface controller from which the frame is coming. + :param re_attempt: Indicates if the processing is a re-attempt, defaults to False. + """ + permitted, rule = self.internal_outbound_acl.is_permitted(frame) + if not permitted: + self.sys_log.info(f"Frame blocked at interface {from_network_interface} by rule {rule}") + return + else: + self.software_manager.arp.add_arp_cache_entry( + ip_address=frame.ip.src_ip_address, + mac_address=frame.ethernet.src_mac_addr, + network_interface=from_network_interface, + ) + + if self.check_send_frame_to_session_manager(frame): + # Port is open on this Router so pass Frame up to session manager first + self.session_manager.receive_frame(frame, from_network_interface) + else: + # If the destination IP is within the DMZ network, process the frame as DMZ inbound + if frame.ip.dst_ip_address in self.dmz_port.ip_network: + self._process_dmz_inbound_frame(frame, from_network_interface) + else: + # If the destination IP is not within the DMZ network, process the frame as external outbound + self._process_external_outbound_frame(frame, from_network_interface) + + def _process_dmz_inbound_frame(self, frame: Frame, from_network_interface: RouterInterface) -> None: + """ + Process frames that are inbound from the DMZ. + + This method is responsible for handling frames coming from either the external network or the internal LAN + towards the DMZ. It checks the frames against the DMZ inbound ACL to decide whether to allow or deny the + traffic, and take appropriate actions. + + :param frame: The frame to be processed. + :param from_network_interface: The network interface controller from which the frame is coming. + :param re_attempt: Indicates if the processing is a re-attempt, defaults to False. + """ + # check if DMZ Inbound ACL Rules permit frame + permitted, rule = self.dmz_inbound_acl.is_permitted(frame=frame) + if not permitted: + self.sys_log.info(f"Frame blocked at interface {from_network_interface} by rule {rule}") + return + + self.process_frame(frame=frame, from_network_interface=from_network_interface) + + def _process_dmz_outbound_frame(self, frame: Frame, from_network_interface: RouterInterface) -> None: + """ + Process frames that are outbound from the DMZ. + + This method handles frames originating from the DMZ and determines their appropriate path based on the + destination IP address. It involves checking the DMZ outbound ACL, consulting the ARP cache and the routing + table to find the correct outbound NIC, and then forwarding the frame to either the internal network or the + external network. + + :param frame: The frame to be processed. + :param from_network_interface: The network interface controller from which the frame is coming. + :param re_attempt: Indicates if the processing is a re-attempt, defaults to False. + """ + permitted, rule = self.dmz_outbound_acl.is_permitted(frame) + if not permitted: + self.sys_log.info(f"Frame blocked at interface {from_network_interface} by rule {rule}") + return + else: + self.software_manager.arp.add_arp_cache_entry( + ip_address=frame.ip.src_ip_address, + mac_address=frame.ethernet.src_mac_addr, + network_interface=from_network_interface, + ) + + if self.check_send_frame_to_session_manager(frame): + # Port is open on this Router so pass Frame up to session manager first + self.session_manager.receive_frame(frame, from_network_interface) + else: + # Attempt to get the outbound NIC from the ARP cache using the destination IP address + outbound_nic = self.software_manager.arp.get_arp_cache_network_interface(frame.ip.dst_ip_address) + + # If outbound NIC is not found in the ARP cache, consult the routing table to find the best route + if not outbound_nic: + route = self.route_table.find_best_route(frame.ip.dst_ip_address) + if route: + # If a route is found, get the corresponding outbound NIC from the ARP cache using the next-hop IP + # address + outbound_nic = self.software_manager.arp.get_arp_cache_network_interface(route.next_hop_ip_address) + + # If an outbound NIC is determined + if outbound_nic: + if outbound_nic == self.external_port: + # If the outbound NIC is the external port, check the frame against the DMZ outbound ACL and + # process it as an external outbound frame + self._process_external_outbound_frame(frame, from_network_interface) + return + elif outbound_nic == self.internal_port: + # If the outbound NIC is the internal port, check the frame against the DMZ outbound ACL and + # process it as an internal inbound frame + self._process_internal_inbound_frame(frame, from_network_interface) + return + # TODO: What to do here? Destination unreachable? Send ICMP back? + return + + @property + def external_port(self) -> RouterInterface: + """ + The external port of the firewall. + + :return: The external port connecting the firewall to the external network. + """ + return self.network_interface[EXTERNAL_PORT_ID] + + @validate_call() + def configure_external_port(self, ip_address: Union[IPV4Address, str], subnet_mask: Union[IPV4Address, str]): + """ + Configure the external port with an IP address and a subnet mask. + + Enables the port once configured. + + :param ip_address: The IP address to assign to the external port. + :param subnet_mask: The subnet mask to assign to the external port. + """ + # Configure the external port with the specified IP address and subnet mask + self.configure_port(EXTERNAL_PORT_ID, ip_address, subnet_mask) + self.external_port.enable() + + @property + def internal_port(self) -> RouterInterface: + """ + The internal port of the firewall. + + :return: The external port connecting the firewall to the internal LAN. + """ + return self.network_interface[INTERNAL_PORT_ID] + + @validate_call() + def configure_internal_port(self, ip_address: Union[IPV4Address, str], subnet_mask: Union[IPV4Address, str]): + """ + Configure the internal port with an IP address and a subnet mask. + + Enables the port once configured. + + :param ip_address: The IP address to assign to the internal port. + :param subnet_mask: The subnet mask to assign to the internal port. + """ + self.configure_port(INTERNAL_PORT_ID, ip_address, subnet_mask) + self.internal_port.enable() + + @property + def dmz_port(self) -> RouterInterface: + """ + The DMZ port of the firewall. + + :return: The external port connecting the firewall to the DMZ. + """ + return self.network_interface[DMZ_PORT_ID] + + @validate_call() + def configure_dmz_port(self, ip_address: Union[IPV4Address, str], subnet_mask: Union[IPV4Address, str]): + """ + Configure the DMZ port with an IP address and a subnet mask. + + Enables the port once configured. + + :param ip_address: The IP address to assign to the DMZ port. + :param subnet_mask: The subnet mask to assign to the DMZ port. + """ + self.configure_port(DMZ_PORT_ID, ip_address, subnet_mask) + self.dmz_port.enable() diff --git a/src/primaite/simulator/network/hardware/nodes/network/router.py b/src/primaite/simulator/network/hardware/nodes/network/router.py index 40cbc16d..0ad64d18 100644 --- a/src/primaite/simulator/network/hardware/nodes/network/router.py +++ b/src/primaite/simulator/network/hardware/nodes/network/router.py @@ -6,6 +6,7 @@ from ipaddress import IPv4Address, IPv4Network from typing import Any, Dict, List, Optional, Tuple, Union from prettytable import MARKDOWN, PrettyTable +from pydantic import validate_call from primaite.simulator.core import RequestManager, RequestType, SimComponent from primaite.simulator.network.hardware.base import IPWiredNetworkInterface @@ -19,6 +20,43 @@ from primaite.simulator.network.transmission.transport_layer import Port from primaite.simulator.system.core.sys_log import SysLog from primaite.simulator.system.services.arp.arp import ARP from primaite.simulator.system.services.icmp.icmp import ICMP +from primaite.utils.validators import IPV4Address + + +@validate_call() +def ip_matches_masked_range(ip_to_check: IPV4Address, base_ip: IPV4Address, wildcard_mask: IPV4Address) -> bool: + """ + Determine if a given IP address matches a range defined by a base IP address and a wildcard mask. + + The wildcard mask specifies which bits in the IP address should be ignored (1) and which bits must match (0). + + The function applies the wildcard mask to both the base IP and the IP address to check by first negating the + wildcard mask and then performing a bitwise AND operation. This process effectively masks out the bits indicated + by the wildcard mask. If the resulting masked IP addresses are equal, it means the IP address to check falls within + the range defined by the base IP and wildcard mask. + + :param IPv4Address ip_to_check: The IP address to be checked. + :param IPv4Address base_ip: The base IP address defining the start of the range. + :param IPv4Address wildcard_mask: The wildcard mask specifying which bits to ignore. + :return: A boolean value indicating whether the IP address matches the masked range. + :rtype: bool + + Example usage: + >>> ip_matches_masked_range(ip_to_check="192.168.10.10", base_ip="192.168.1.1", wildcard_mask="0.0.255.255") + False + """ + # Convert the IP addresses from IPv4Address objects to integer representations for bitwise operations + base_ip_int = int(base_ip) + ip_to_check_int = int(ip_to_check) + wildcard_int = int(wildcard_mask) + + # Negate the wildcard mask and apply it to both the base IP and the IP to check using bitwise AND + # This step masks out the bits to be ignored according to the wildcard mask + masked_base_ip = base_ip_int & ~wildcard_int + masked_ip_to_check = ip_to_check_int & ~wildcard_int + + # Compare the masked IP addresses to determine if they match within the masked range + return masked_base_ip == masked_ip_to_check class ACLAction(Enum): @@ -30,22 +68,62 @@ class ACLAction(Enum): class ACLRule(SimComponent): """ - Represents an Access Control List (ACL) rule. + Represents an Access Control List (ACL) rule within a network device. - :ivar ACLAction action: Action to be performed (Permit/Deny). Default is DENY. - :ivar Optional[IPProtocol] protocol: Network protocol. Default is None. - :ivar Optional[IPv4Address] src_ip_address: Source IP address. Default is None. - :ivar Optional[Port] src_port: Source port number. Default is None. - :ivar Optional[IPv4Address] dst_ip_address: Destination IP address. Default is None. - :ivar Optional[Port] dst_port: Destination port number. Default is None. + Enables fine-grained control over network traffic based on specified criteria such as IP addresses, protocols, + and ports. ACL rules can be configured to permit or deny traffic, providing a powerful mechanism for enforcing + security policies and traffic flow. + + ACL rules support specifying exact match conditions, ranges of IP addresses using wildcard masks, and + protocol types. This flexibility allows for complex traffic filtering scenarios, from blocking or allowing + specific types of traffic to entire subnets. + + **Usage:** + + - **Dedicated IP Addresses**: To match traffic from or to a specific IP address, set the `src_ip_address` + and/or `dst_ip_address` without a wildcard mask. This is useful for rules that apply to individual hosts. + + - **IP Ranges with Wildcard Masks**: For rules that apply to a range of IP addresses, use the `src_wildcard_mask` + and/or `dst_wildcard_mask` in conjunction with the base IP address. Wildcard masks are a way to specify which + bits of the IP address should be matched exactly and which bits can vary. For example, a wildcard mask of + `0.0.0.255` applied to a base address of `192.168.1.0` allows for any address from `192.168.1.0` to + `192.168.1.255`. + + - **Allowing All IP Traffic**: To mimic the Cisco ACL rule that permits all IP traffic from a specific range, + you may use wildcard masks with the rule action set to `PERMIT`. If your implementation includes an `ALL` + option in the `IPProtocol` enum, use it to allow all protocols; otherwise, consider the rule without a + specified protocol to apply to all IP traffic. + + + The combination of these attributes allows for the creation of granular rules to control traffic flow + effectively, enhancing network security and management. + + + :ivar ACLAction action: Specifies whether to `PERMIT` or `DENY` the traffic that matches the rule conditions. + The default action is `DENY`. + :ivar Optional[IPProtocol] protocol: The network protocol (e.g., TCP, UDP, ICMP) to match. If `None`, the rule + applies to all protocols. + :ivar Optional[IPv4Address] src_ip_address: The source IP address to match. If combined with `src_wildcard_mask`, + it specifies the start of an IP range. + :ivar Optional[IPv4Address] src_wildcard_mask: The wildcard mask for the source IP address, defining the range + of addresses to match. + :ivar Optional[IPv4Address] dst_ip_address: The destination IP address to match. If combined with + `dst_wildcard_mask`, it specifies the start of an IP range. + :ivar Optional[IPv4Address] dst_wildcard_mask: The wildcard mask for the destination IP address, defining the + range of addresses to match. + :ivar Optional[Port] src_port: The source port number to match. Relevant for TCP/UDP protocols. + :ivar Optional[Port] dst_port: The destination port number to match. Relevant for TCP/UDP protocols. """ action: ACLAction = ACLAction.DENY protocol: Optional[IPProtocol] = None - src_ip_address: Optional[IPv4Address] = None + src_ip_address: Optional[IPV4Address] = None + src_wildcard_mask: Optional[IPV4Address] = None + dst_ip_address: Optional[IPV4Address] = None + dst_wildcard_mask: Optional[IPV4Address] = None src_port: Optional[Port] = None - dst_ip_address: Optional[IPv4Address] = None dst_port: Optional[Port] = None + hit_count: int = 0 def __str__(self) -> str: rule_strings = [] @@ -76,24 +154,132 @@ class ACLRule(SimComponent): state["src_port"] = self.src_port.name if self.src_port else None state["dst_ip_address"] = str(self.dst_ip_address) if self.dst_ip_address else None state["dst_port"] = self.dst_port.name if self.dst_port else None + state["hit_count"] = self.hit_count return state + def permit_frame_check(self, frame: Frame) -> bool: + """ + Evaluates whether a given network frame should be permitted or denied based on this ACL rule. + + This method checks the frame against the ACL rule's criteria, including protocol, source and destination IP + addresses (with support for wildcard masking), and source and destination ports. The method assumes that an + unspecified (None) criterion implies a match for any value in that category. For IP addresses, wildcard masking + can be used to specify ranges of addresses that match the rule. + + The method follows these steps to determine if a frame is permitted: + + 1. Check if the frame's protocol matches the ACL rule's protocol. + 2. For source and destination IP addresses: + 1. If a wildcard mask is defined, check if the frame's IP address is within the range specified by the base + IP address and the wildcard mask. + 2. If no wildcard mask is defined, directly compare the frame's IP address to the one specified in the rule. + 3. Check if the frame's source and destination ports match those specified in the rule. + 4. The frame is permitted if it matches all specified criteria and the rule's action is PERMIT. Conversely, it + is not permitted if any criterion does not match or if the rule's action is DENY. + + :param frame (Frame): The network frame to be evaluated. + :return: True if the frame is permitted by this ACL rule, False otherwise. + """ + protocol_matches = self.protocol == frame.ip.protocol if self.protocol else True + + src_ip_matches = self.src_ip_address is None # Assume match if no specific src IP is defined + if self.src_ip_address: + if self.src_wildcard_mask: + # If a src wildcard mask is provided, use it to check the range + src_ip_matches = ip_matches_masked_range( + ip_to_check=frame.ip.src_ip_address, + base_ip=self.src_ip_address, + wildcard_mask=self.src_wildcard_mask, + ) + else: + # Direct comparison if no wildcard mask is defined + src_ip_matches = frame.ip.src_ip_address == self.src_ip_address + + dst_ip_matches = self.dst_ip_address is None # Assume match if no specific dst IP is defined + if self.dst_ip_address: + if self.dst_wildcard_mask: + # If a dst wildcard mask is provided, use it to check the range + dst_ip_matches = ip_matches_masked_range( + ip_to_check=frame.ip.dst_ip_address, + base_ip=self.dst_ip_address, + wildcard_mask=self.dst_wildcard_mask, + ) + else: + # Direct comparison if no wildcard mask is defined + dst_ip_matches = frame.ip.dst_ip_address == self.dst_ip_address + + src_port = None + dst_port = None + if frame.tcp: + src_port = frame.tcp.src_port + dst_port = frame.tcp.dst_port + elif frame.udp: + src_port = frame.udp.src_port + dst_port = frame.udp.dst_port + + src_port_matches = self.src_port == src_port if self.src_port else True + dst_port_matches = self.dst_port == dst_port if self.dst_port else True + + # The frame is permitted if all conditions are met + if protocol_matches and src_ip_matches and dst_ip_matches and src_port_matches and dst_port_matches: + return self.action == ACLAction.PERMIT + else: + # If any condition is not met, the decision depends on the rule action + return False + class AccessControlList(SimComponent): """ Manages a list of ACLRules to filter network traffic. - :ivar SysLog sys_log: System logging instance. - :ivar ACLAction implicit_action: Default action for rules. - :ivar ACLRule implicit_rule: Implicit ACL rule, created based on implicit_action. - :ivar int max_acl_rules: Maximum number of ACL rules that can be added. Default is 25. - :ivar List[Optional[ACLRule]] _acl: A list containing the ACL rules. + Manages a list of ACLRule instances to filter network traffic based on predefined criteria. This class + provides functionalities to add, remove, and evaluate ACL rules, thereby controlling the flow of traffic + through a network device. + + ACL rules can specify conditions based on source and destination IP addresses, IP protocols (TCP, UDP, ICMP), + and port numbers. Rules can be configured to permit or deny traffic that matches these conditions, offering + granular control over network security policies. + + Usage: + - **Dedicated IP Addresses**: Directly specify the source and/or destination IP addresses in an ACL rule to + match traffic to or from specific hosts. + - **IP Ranges with Wildcard Masks**: Use wildcard masks along with base IP addresses to define ranges of IP + addresses that an ACL rule applies to. This is useful for specifying subnets or ranges of IP addresses. + - **Allowing All IP Traffic**: To mimic a Cisco-style ACL rule that allows all IP traffic from a specified + range, use the wildcard mask in conjunction with a permit action. If your system supports an `ALL` option + for the IP protocol, this can be used to allow all types of IP traffic; otherwise, the absence of a + specified protocol can be interpreted to mean all protocols. + + Methods include functionalities to add and remove rules, reset to default configurations, and evaluate + whether specific frames are permitted or denied based on the current set of rules. The class also provides + utility functions to describe the current state and display the rules in a human-readable format. + + Example: + >>> # To add a rule that permits all TCP traffic from the subnet 192.168.1.0/24 to 192.168.2.0/24: + >>> acl = AccessControlList() + >>> acl.add_rule( + ... action=ACLAction.PERMIT, + ... protocol=IPProtocol.TCP, + ... src_ip_address="192.168.1.0", + ... src_wildcard_mask="0.0.0.255", + ... dst_ip_address="192.168.2.0", + ... dst_wildcard_mask="0.0.0.255" + ...) + + This example demonstrates adding a rule with specific source and destination IP ranges, using wildcard masks + to allow a broad range of traffic while maintaining control over the flow of data for security and + management purposes. + + :ivar ACLAction implicit_action: The default action (permit or deny) applied when no other rule matches. + Typically set to deny to follow the principle of least privilege. + :ivar int max_acl_rules: The maximum number of ACL rules that can be added to the list. Defaults to 25. """ sys_log: SysLog implicit_action: ACLAction implicit_rule: ACLRule max_acl_rules: int = 25 + name: str _acl: List[Optional[ACLRule]] = [None] * 24 _default_config: Dict[int, dict] = {} """Config dict describing how the ACL list should look at episode start""" @@ -210,13 +396,16 @@ class AccessControlList(SimComponent): """ return len([rule for rule in self._acl if rule is not None]) + @validate_call() def add_rule( self, - action: ACLAction, + action: ACLAction = ACLAction.DENY, protocol: Optional[IPProtocol] = None, - src_ip_address: Optional[Union[str, IPv4Address]] = None, + src_ip_address: Optional[IPV4Address] = None, + src_wildcard_mask: Optional[IPV4Address] = None, + dst_ip_address: Optional[IPV4Address] = None, + dst_wildcard_mask: Optional[IPV4Address] = None, src_port: Optional[Port] = None, - dst_ip_address: Optional[Union[str, IPv4Address]] = None, dst_port: Optional[Port] = None, position: int = 0, ) -> None: @@ -224,25 +413,25 @@ class AccessControlList(SimComponent): Add a new ACL rule. :param ACLAction action: Action to be performed (Permit/Deny). - :param Optional[IPProtocol] protocol: Network protocol. - :param Optional[Union[str, IPv4Address]] src_ip_address: Source IP address. - :param Optional[Port] src_port: Source port number. - :param Optional[Union[str, IPv4Address]] dst_ip_address: Destination IP address. - :param Optional[Port] dst_port: Destination port number. - :param int position: Position in the ACL list to insert the rule. + :param protocol: Network protocol. Optional, default is None. + :param src_ip_address: Source IP address. Optional, default is None. + :param src_wildcard_mask: Source IP wildcard mask. Optional, default is None. + :param src_port: Source port number. Optional, default is None. + :param dst_ip_address: Destination IP address. Optional, default is None. + :param dst_wildcard_mask: Destination IP wildcard mask. Optional, default is None. + :param dst_port: Destination port number. Optional, default is None. + :param int position: Position in the ACL list to insert the rule. Optional, default is 1. :raises ValueError: When the position is out of bounds. """ - if isinstance(src_ip_address, str): - src_ip_address = IPv4Address(src_ip_address) - if isinstance(dst_ip_address, str): - dst_ip_address = IPv4Address(dst_ip_address) if 0 <= position < self.max_acl_rules: if self._acl[position]: self.sys_log.info(f"Overwriting ACL rule at position {position}") self._acl[position] = ACLRule( action=action, src_ip_address=src_ip_address, + src_wildcard_mask=src_wildcard_mask, dst_ip_address=dst_ip_address, + dst_wildcard_mask=dst_wildcard_mask, protocol=protocol, src_port=src_port, dst_port=dst_port, @@ -264,43 +453,25 @@ class AccessControlList(SimComponent): else: raise ValueError(f"Cannot remove ACL rule, position {position} is out of bounds.") - def is_permitted( - self, - protocol: IPProtocol, - src_ip_address: Union[str, IPv4Address], - src_port: Optional[Port], - dst_ip_address: Union[str, IPv4Address], - dst_port: Optional[Port], - ) -> Tuple[bool, Optional[Union[str, ACLRule]]]: - """ - Check if a packet with the given properties is permitted through the ACL. - - :param protocol: The protocol of the packet. - :param src_ip_address: Source IP address of the packet. Accepts string and IPv4Address. - :param src_port: Source port of the packet. Optional. - :param dst_ip_address: Destination IP address of the packet. Accepts string and IPv4Address. - :param dst_port: Destination port of the packet. Optional. - :return: A tuple with a boolean indicating if the packet is permitted and an optional rule or implicit action - string. - """ - if not isinstance(src_ip_address, IPv4Address): - src_ip_address = IPv4Address(src_ip_address) - if not isinstance(dst_ip_address, IPv4Address): - dst_ip_address = IPv4Address(dst_ip_address) - for rule in self._acl: - if not rule: + def is_permitted(self, frame: Frame) -> Tuple[bool, ACLRule]: + """Check if a packet with the given properties is permitted through the ACL.""" + permitted = False + rule: ACLRule = None + for _rule in self._acl: + if not _rule: continue - if ( - (rule.src_ip_address == src_ip_address or rule.src_ip_address is None) - and (rule.dst_ip_address == dst_ip_address or rule.dst_ip_address is None) - and (rule.protocol == protocol or rule.protocol is None) - and (rule.src_port == src_port or rule.src_port is None) - and (rule.dst_port == dst_port or rule.dst_port is None) - ): - return rule.action == ACLAction.PERMIT, rule + if _rule.permit_frame_check(frame): + permitted = True + rule = _rule + break + if not rule: + permitted = self.implicit_action == ACLAction.PERMIT + rule = self.implicit_rule - return self.implicit_action == ACLAction.PERMIT, f"Implicit {self.implicit_action.name}" + rule.hit_count += 1 + + return permitted, rule def get_relevant_rules( self, @@ -346,11 +517,25 @@ class AccessControlList(SimComponent): :param markdown: Whether to display the table in Markdown format. Defaults to False. """ - table = PrettyTable(["Index", "Action", "Protocol", "Src IP", "Src Port", "Dst IP", "Dst Port"]) + table = PrettyTable( + [ + "Index", + "Action", + "Protocol", + "Src IP", + "Src Wildcard", + "Src Port", + "Dst IP", + "Dst Wildcard", + "Dst Port", + "Hit Count", + ] + ) if markdown: table.set_style(MARKDOWN) table.align = "l" - table.title = f"{self.sys_log.hostname} Access Control List" + + table.title = f"{self.name} Access Control List" for index, rule in enumerate(self.acl + [self.implicit_rule]): if rule: table.add_row( @@ -359,22 +544,16 @@ class AccessControlList(SimComponent): rule.action.name if rule.action else "ANY", rule.protocol.name if rule.protocol else "ANY", rule.src_ip_address if rule.src_ip_address else "ANY", + rule.src_wildcard_mask if rule.src_wildcard_mask else "ANY", f"{rule.src_port.value} ({rule.src_port.name})" if rule.src_port else "ANY", rule.dst_ip_address if rule.dst_ip_address else "ANY", + rule.dst_wildcard_mask if rule.dst_wildcard_mask else "ANY", f"{rule.dst_port.value} ({rule.dst_port.name})" if rule.dst_port else "ANY", + rule.hit_count, ] ) print(table) - @property - def num_rules(self) -> int: - """ - Get the number of rules in the ACL. - - :return: The number of rules in the ACL. - """ - return len([rule for rule in self._acl if rule is not None]) - class RouteEntry(SimComponent): """ @@ -880,7 +1059,7 @@ class Router(NetworkNode): if not kwargs.get("sys_log"): kwargs["sys_log"] = SysLog(hostname) if not kwargs.get("acl"): - kwargs["acl"] = AccessControlList(sys_log=kwargs["sys_log"], implicit_action=ACLAction.DENY) + kwargs["acl"] = AccessControlList(sys_log=kwargs["sys_log"], implicit_action=ACLAction.DENY, name=hostname) if not kwargs.get("route_table"): kwargs["route_table"] = RouteTable(sys_log=kwargs["sys_log"]) super().__init__(hostname=hostname, num_ports=num_ports, **kwargs) @@ -1008,6 +1187,36 @@ class Router(NetworkNode): state["acl"] = self.acl.describe_state() return state + def check_send_frame_to_session_manager(self, frame: Frame) -> bool: + """ + Determines whether a given network frame should be forwarded to the session manager. + + his function evaluates whether the destination IP address of the frame corresponds to one of the router's + interface IP addresses. If so, it then checks if the frame is an ICMP packet or if the destination port matches + any of the ports that the router's software manager identifies as open. If either condition is met, the frame + is considered for further processing by the session manager, implying potential application-level handling or + response generation. + + :param frame: The network frame to be evaluated. + + :return: A boolean value indicating whether the frame should be sent to the session manager. ``True`` if the + frame's destination IP matches the router's interface and is directed to an open port or is an ICMP packet, + otherwise, ``False``. + """ + dst_ip_address = frame.ip.dst_ip_address + dst_port = None + if frame.ip.protocol == IPProtocol.TCP: + dst_port = frame.tcp.dst_port + elif frame.ip.protocol == IPProtocol.UDP: + dst_port = frame.udp.dst_port + + if self.ip_is_router_interface(dst_ip_address) and ( + frame.icmp or dst_port in self.software_manager.get_open_ports() + ): + return True + + return False + def receive_frame(self, frame: Frame, from_network_interface: RouterInterface): """ Processes an incoming frame received on one of the router's interfaces. @@ -1021,26 +1230,8 @@ class Router(NetworkNode): if self.operating_state != NodeOperatingState.ON: return - protocol = frame.ip.protocol - src_ip_address = frame.ip.src_ip_address - dst_ip_address = frame.ip.dst_ip_address - src_port = None - dst_port = None - if frame.ip.protocol == IPProtocol.TCP: - src_port = frame.tcp.src_port - dst_port = frame.tcp.dst_port - elif frame.ip.protocol == IPProtocol.UDP: - src_port = frame.udp.src_port - dst_port = frame.udp.dst_port - # Check if it's permitted - permitted, rule = self.acl.is_permitted( - protocol=protocol, - src_ip_address=src_ip_address, - src_port=src_port, - dst_ip_address=dst_ip_address, - dst_port=dst_port, - ) + permitted, rule = self.acl.is_permitted(frame) if not permitted: at_port = self._get_port_of_nic(from_network_interface) @@ -1054,13 +1245,7 @@ class Router(NetworkNode): network_interface=from_network_interface, ) - send_to_session_manager = False - if (frame.icmp and self.ip_is_router_interface(dst_ip_address)) or ( - dst_port in self.software_manager.get_open_ports() - ): - send_to_session_manager = True - - if send_to_session_manager: + if self.check_send_frame_to_session_manager(frame): # Port is open on this Router so pass Frame up to session manager first self.session_manager.receive_frame(frame, from_network_interface) else: @@ -1196,7 +1381,7 @@ class Router(NetworkNode): def show(self, markdown: bool = False): """ - Prints the state of the Ethernet interfaces on the Router. + Prints the state of the network interfaces on the Router. :param markdown: Flag to indicate if the output should be in markdown format. """ @@ -1205,7 +1390,7 @@ class Router(NetworkNode): if markdown: table.set_style(MARKDOWN) table.align = "l" - table.title = f"{self.hostname} Ethernet Interfaces" + table.title = f"{self.hostname} Network Interfaces" for port, network_interface in self.network_interface.items(): table.add_row( [ diff --git a/src/primaite/simulator/network/transmission/network_layer.py b/src/primaite/simulator/network/transmission/network_layer.py index c6328a60..bdf4babc 100644 --- a/src/primaite/simulator/network/transmission/network_layer.py +++ b/src/primaite/simulator/network/transmission/network_layer.py @@ -1,9 +1,9 @@ from enum import Enum -from ipaddress import IPv4Address from pydantic import BaseModel from primaite import getLogger +from primaite.utils.validators import IPV4Address _LOGGER = getLogger(__name__) @@ -73,9 +73,9 @@ class IPPacket(BaseModel): ... ) """ - src_ip_address: IPv4Address + src_ip_address: IPV4Address "Source IP address." - dst_ip_address: IPv4Address + dst_ip_address: IPV4Address "Destination IP address." protocol: IPProtocol = IPProtocol.TCP "IPProtocol." diff --git a/tests/integration_tests/network/test_firewall.py b/tests/integration_tests/network/test_firewall.py new file mode 100644 index 00000000..349ccd85 --- /dev/null +++ b/tests/integration_tests/network/test_firewall.py @@ -0,0 +1,280 @@ +from ipaddress import IPv4Address + +import pytest + +from primaite.simulator.network.container import Network +from primaite.simulator.network.hardware.nodes.host.computer import Computer +from primaite.simulator.network.hardware.nodes.network.firewall import Firewall +from primaite.simulator.network.hardware.nodes.network.router import ACLAction +from primaite.simulator.network.transmission.network_layer import IPProtocol +from primaite.simulator.network.transmission.transport_layer import Port +from primaite.simulator.system.services.ntp.ntp_client import NTPClient +from primaite.simulator.system.services.ntp.ntp_server import NTPServer + + +@pytest.fixture(scope="function") +def dmz_external_internal_network() -> Network: + """ + Fixture for setting up a simulated network with a firewall, external node, internal node, and DMZ node. This + configuration is designed to test firewall rules and their impact on traffic between these network segments. + + -------------- -------------- -------------- + | external |---------| firewall |---------| internal | + -------------- -------------- -------------- + | + | + --------- + | DMZ | + --------- + + The network is set up as follows: + - An external node simulates an entity outside the organization's network. + - An internal node represents a device within the organization's LAN. + - A DMZ (Demilitarized Zone) node acts as a server or service exposed to external traffic. + - A firewall node controls traffic between these nodes based on ACL (Access Control List) rules. + + The firewall is configured to allow ICMP and ARP traffic across all interfaces to ensure basic connectivity + for the tests. Specific tests will modify ACL rules to test various traffic filtering scenarios. + + :return: A `Network` instance with the described nodes and configurations. + """ + network = Network() + + firewall_node: Firewall = Firewall(hostname="firewall_1", start_up_duration=0) + firewall_node.power_on() + # configure firewall ports + firewall_node.configure_external_port( + ip_address=IPv4Address("192.168.10.1"), subnet_mask=IPv4Address("255.255.255.0") + ) + firewall_node.configure_dmz_port(ip_address=IPv4Address("192.168.1.1"), subnet_mask=IPv4Address("255.255.255.0")) + firewall_node.configure_internal_port( + ip_address=IPv4Address("192.168.0.1"), subnet_mask=IPv4Address("255.255.255.0") + ) + + # Allow ICMP + firewall_node.internal_inbound_acl.add_rule(action=ACLAction.PERMIT, protocol=IPProtocol.ICMP, position=23) + firewall_node.internal_outbound_acl.add_rule(action=ACLAction.PERMIT, protocol=IPProtocol.ICMP, position=23) + firewall_node.external_inbound_acl.add_rule(action=ACLAction.PERMIT, protocol=IPProtocol.ICMP, position=23) + firewall_node.external_outbound_acl.add_rule(action=ACLAction.PERMIT, protocol=IPProtocol.ICMP, position=23) + firewall_node.dmz_inbound_acl.add_rule(action=ACLAction.PERMIT, protocol=IPProtocol.ICMP, position=23) + firewall_node.dmz_outbound_acl.add_rule(action=ACLAction.PERMIT, protocol=IPProtocol.ICMP, position=23) + + # Allow ARP + firewall_node.internal_inbound_acl.add_rule( + action=ACLAction.PERMIT, src_port=Port.ARP, dst_port=Port.ARP, position=22 + ) + firewall_node.internal_outbound_acl.add_rule( + action=ACLAction.PERMIT, src_port=Port.ARP, dst_port=Port.ARP, position=22 + ) + firewall_node.external_inbound_acl.add_rule( + action=ACLAction.PERMIT, src_port=Port.ARP, dst_port=Port.ARP, position=22 + ) + firewall_node.external_outbound_acl.add_rule( + action=ACLAction.PERMIT, src_port=Port.ARP, dst_port=Port.ARP, position=22 + ) + firewall_node.dmz_inbound_acl.add_rule(action=ACLAction.PERMIT, src_port=Port.ARP, dst_port=Port.ARP, position=22) + firewall_node.dmz_outbound_acl.add_rule(action=ACLAction.PERMIT, src_port=Port.ARP, dst_port=Port.ARP, position=22) + + # external node + external_node = Computer( + hostname="external_node", + ip_address="192.168.10.2", + subnet_mask="255.255.255.0", + default_gateway="192.168.10.1", + start_up_duration=0, + ) + external_node.power_on() + external_node.software_manager.install(NTPServer) + ntp_service: NTPServer = external_node.software_manager.software["NTPServer"] + ntp_service.start() + # connect external node to firewall node + network.connect(endpoint_b=external_node.network_interface[1], endpoint_a=firewall_node.external_port) + + # internal node + internal_node = Computer( + hostname="internal_node", + ip_address="192.168.0.2", + subnet_mask="255.255.255.0", + default_gateway="192.168.0.1", + start_up_duration=0, + ) + internal_node.power_on() + internal_node.software_manager.install(NTPClient) + internal_ntp_client: NTPClient = internal_node.software_manager.software["NTPClient"] + internal_ntp_client.configure(external_node.network_interface[1].ip_address) + internal_ntp_client.start() + # connect external node to firewall node + network.connect(endpoint_b=internal_node.network_interface[1], endpoint_a=firewall_node.internal_port) + + # dmz node + dmz_node = Computer( + hostname="dmz_node", + ip_address="192.168.1.2", + subnet_mask="255.255.255.0", + default_gateway="192.168.1.1", + start_up_duration=0, + ) + dmz_node.power_on() + dmz_ntp_client: NTPClient = dmz_node.software_manager.software["NTPClient"] + dmz_ntp_client.configure(external_node.network_interface[1].ip_address) + dmz_ntp_client.start() + # connect external node to firewall node + network.connect(endpoint_b=dmz_node.network_interface[1], endpoint_a=firewall_node.dmz_port) + + return network + + +def test_firewall_can_ping_nodes(dmz_external_internal_network): + """ + Tests the firewall's ability to ping the external, internal, and DMZ nodes in the network. + + Verifies that the firewall has connectivity to all nodes within the network by performing a ping operation. + Successful pings indicate proper network setup and basic ICMP traffic passage through the firewall. + """ + firewall = dmz_external_internal_network.get_node_by_hostname("firewall_1") + + # ping from the firewall + assert firewall.ping("192.168.0.2") # firewall to internal + assert firewall.ping("192.168.1.2") # firewall to dmz + assert firewall.ping("192.168.10.2") # firewall to external + + +def test_nodes_can_ping_default_gateway(dmz_external_internal_network): + """ + Checks if the external, internal, and DMZ nodes can ping their respective default gateways. + + This test confirms that each node is correctly configured with a route to its default gateway and that the + firewall permits ICMP traffic for these basic connectivity checks. + """ + external_node = dmz_external_internal_network.get_node_by_hostname("external_node") + internal_node = dmz_external_internal_network.get_node_by_hostname("internal_node") + dmz_node = dmz_external_internal_network.get_node_by_hostname("dmz_node") + + assert internal_node.ping(internal_node.default_gateway) # default gateway internal + assert dmz_node.ping(dmz_node.default_gateway) # default gateway dmz + assert external_node.ping(external_node.default_gateway) # default gateway external + + +def test_nodes_can_ping_default_gateway_on_another_subnet(dmz_external_internal_network): + """ + Verifies that nodes can ping default gateways located in a different subnet, facilitated by the firewall. + + This test assesses the routing and firewall ACL configurations that allow ICMP traffic between different + network segments, ensuring that nodes can reach default gateways outside their local subnet. + """ + external_node = dmz_external_internal_network.get_node_by_hostname("external_node") + internal_node = dmz_external_internal_network.get_node_by_hostname("internal_node") + dmz_node = dmz_external_internal_network.get_node_by_hostname("dmz_node") + + assert internal_node.ping(external_node.default_gateway) # internal node to external default gateway + assert internal_node.ping(dmz_node.default_gateway) # internal node to dmz default gateway + + assert dmz_node.ping(internal_node.default_gateway) # dmz node to internal default gateway + assert dmz_node.ping(external_node.default_gateway) # dmz node to external default gateway + + assert external_node.ping(external_node.default_gateway) # external node to internal default gateway + assert external_node.ping(dmz_node.default_gateway) # external node to dmz default gateway + + +def test_nodes_can_ping_each_other(dmz_external_internal_network): + """ + Evaluates the ability of each node (external, internal, DMZ) to ping the other nodes within the network. + + This comprehensive connectivity test checks if the firewall's current ACL configuration allows for inter-node + communication via ICMP pings, highlighting the effectiveness of the firewall rules in place. + """ + external_node = dmz_external_internal_network.get_node_by_hostname("external_node") + internal_node = dmz_external_internal_network.get_node_by_hostname("internal_node") + dmz_node = dmz_external_internal_network.get_node_by_hostname("dmz_node") + + # test that nodes can ping each other + assert internal_node.ping(external_node.network_interface[1].ip_address) + assert internal_node.ping(dmz_node.network_interface[1].ip_address) + + assert external_node.ping(internal_node.network_interface[1].ip_address) + assert external_node.ping(dmz_node.network_interface[1].ip_address) + + assert dmz_node.ping(internal_node.network_interface[1].ip_address) + assert dmz_node.ping(external_node.network_interface[1].ip_address) + + +def test_service_blocked(dmz_external_internal_network): + """ + Tests the firewall's default blocking stance on NTP service requests from internal and DMZ nodes. + + Initially, without specific ACL rules to allow NTP traffic, this test confirms that NTP clients on both the + internal and DMZ nodes are unable to update their time, demonstrating the firewall's effective blocking of + unspecified services. + """ + firewall = dmz_external_internal_network.get_node_by_hostname("firewall_1") + internal_node = dmz_external_internal_network.get_node_by_hostname("internal_node") + dmz_node = dmz_external_internal_network.get_node_by_hostname("dmz_node") + internal_ntp_client: NTPClient = internal_node.software_manager.software["NTPClient"] + dmz_ntp_client: NTPClient = dmz_node.software_manager.software["NTPClient"] + + assert not internal_ntp_client.time + + internal_ntp_client.request_time() + + assert not internal_ntp_client.time + + assert not dmz_ntp_client.time + + dmz_ntp_client.request_time() + + assert not dmz_ntp_client.time + + firewall.show_rules() + + +def test_service_allowed_with_rule(dmz_external_internal_network): + """ + Tests that NTP service requests are allowed through the firewall based on ACL rules. + + This test verifies the functionality of the firewall in a network scenario where both an internal node and + a node in the DMZ attempt to access NTP services. Initially, no NTP traffic is allowed. The test then + configures ACL rules on the firewall to permit NTP traffic and checks if the NTP clients on the internal + node and DMZ node can successfully request and receive time updates. + + Procedure: + 1. Assert that the internal node's NTP client initially has no time information due to ACL restrictions. + 2. Add ACL rules to the firewall to permit outbound and inbound NTP traffic from the internal network. + 3. Trigger an NTP time request from the internal node and assert that it successfully receives time + information. + 4. Assert that the DMZ node's NTP client initially has no time information. + 5. Add ACL rules to the firewall to permit outbound and inbound NTP traffic from the DMZ. + 6. Trigger an NTP time request from the DMZ node and assert that it successfully receives time information. + + Asserts: + - The internal node's NTP client has no time information before ACL rules are applied. + - The internal node's NTP client successfully receives time information after the appropriate ACL rules + are applied. + - The DMZ node's NTP client has no time information before ACL rules are applied for the DMZ. + - The DMZ node's NTP client successfully receives time information after the appropriate ACL rules for + the DMZ are applied. + """ + firewall = dmz_external_internal_network.get_node_by_hostname("firewall_1") + internal_node = dmz_external_internal_network.get_node_by_hostname("internal_node") + dmz_node = dmz_external_internal_network.get_node_by_hostname("dmz_node") + internal_ntp_client: NTPClient = internal_node.software_manager.software["NTPClient"] + dmz_ntp_client: NTPClient = dmz_node.software_manager.software["NTPClient"] + + assert not internal_ntp_client.time + + firewall.internal_outbound_acl.add_rule(action=ACLAction.PERMIT, src_port=Port.NTP, dst_port=Port.NTP, position=1) + firewall.internal_inbound_acl.add_rule(action=ACLAction.PERMIT, src_port=Port.NTP, dst_port=Port.NTP, position=1) + + internal_ntp_client.request_time() + + assert internal_ntp_client.time + + assert not dmz_ntp_client.time + + firewall.dmz_outbound_acl.add_rule(action=ACLAction.PERMIT, src_port=Port.NTP, dst_port=Port.NTP, position=1) + firewall.dmz_inbound_acl.add_rule(action=ACLAction.PERMIT, src_port=Port.NTP, dst_port=Port.NTP, position=1) + + dmz_ntp_client.request_time() + + assert dmz_ntp_client.time + + firewall.show_rules() diff --git a/tests/unit_tests/_primaite/_simulator/_network/_hardware/nodes/test_acl.py b/tests/unit_tests/_primaite/_simulator/_network/_hardware/nodes/test_acl.py index 428f370c..8b1aa9be 100644 --- a/tests/unit_tests/_primaite/_simulator/_network/_hardware/nodes/test_acl.py +++ b/tests/unit_tests/_primaite/_simulator/_network/_hardware/nodes/test_acl.py @@ -1,111 +1,293 @@ from ipaddress import IPv4Address +import pytest + +from primaite.simulator.network.hardware.base import generate_mac_address from primaite.simulator.network.hardware.nodes.network.router import ACLAction, Router -from primaite.simulator.network.transmission.network_layer import IPProtocol -from primaite.simulator.network.transmission.transport_layer import Port +from primaite.simulator.network.protocols.icmp import ICMPPacket +from primaite.simulator.network.transmission.data_link_layer import EthernetHeader, Frame +from primaite.simulator.network.transmission.network_layer import IPPacket, IPProtocol +from primaite.simulator.network.transmission.transport_layer import Port, TCPHeader, UDPHeader -def test_add_rule(): +@pytest.fixture(scope="function") +def router_with_acl_rules(): + """ + Provides a router instance with predefined ACL rules for testing. + + :Setup: + 1. Creates a Router object named "Router". + 2. Adds a PERMIT rule for TCP traffic from 192.168.1.1:HTTPS to 192.168.1.2:HTTP. + 3. Adds a DENY rule for TCP traffic from 192.168.1.3:8080 to 192.168.1.4:80. + + :return: A configured Router object with ACL rules. + """ router = Router("Router") acl = router.acl + # Add rules here as needed acl.add_rule( action=ACLAction.PERMIT, protocol=IPProtocol.TCP, - src_ip_address=IPv4Address("192.168.1.1"), + src_ip_address="192.168.1.1", + src_port=Port.HTTPS, + dst_ip_address="192.168.1.2", + dst_port=Port.HTTP, + position=1, + ) + acl.add_rule( + action=ACLAction.DENY, + protocol=IPProtocol.TCP, + src_ip_address="192.168.1.3", src_port=Port(8080), - dst_ip_address=IPv4Address("192.168.1.2"), + dst_ip_address="192.168.1.4", + dst_port=Port(80), + position=2, + ) + return router + + +@pytest.fixture(scope="function") +def router_with_wildcard_acl(): + """ + Provides a router instance with ACL rules that include wildcard masking for testing. + + :Setup: + 1. Creates a Router object named "Router". + 2. Adds a PERMIT rule for TCP traffic from 192.168.1.1:8080 to 10.1.1.2:80. + 3. Adds a DENY rule with a wildcard mask for TCP traffic from the 192.168.1.0/24 network to 10.1.1.3:443. + 4. Adds a PERMIT rule for any traffic to the 10.2.0.0/16 network. + + :return: A Router object with configured ACL rules, including rules with wildcard masking. + """ + router = Router("Router") + acl = router.acl + # Rule to permit traffic from a specific source IP and port to a specific destination IP and port + acl.add_rule( + action=ACLAction.PERMIT, + protocol=IPProtocol.TCP, + src_ip_address="192.168.1.1", + src_port=Port(8080), + dst_ip_address="10.1.1.2", dst_port=Port(80), position=1, ) + # Rule to deny traffic from an IP range to a specific destination IP and port + acl.add_rule( + action=ACLAction.DENY, + protocol=IPProtocol.TCP, + src_ip_address="192.168.1.0", + src_wildcard_mask="0.0.0.255", + dst_ip_address="10.1.1.3", + dst_port=Port(443), + position=2, + ) + # Rule to permit any traffic to a range of destination IPs + acl.add_rule( + action=ACLAction.PERMIT, + protocol=None, + src_ip_address=None, + dst_ip_address="10.2.0.0", + dst_wildcard_mask="0.0.255.255", + position=3, + ) + return router + + +def test_add_rule(router_with_acl_rules): + """ + Tests that an ACL rule is added correctly to the router's ACL. + + Asserts: + - The action of the added rule is PERMIT. + - The protocol of the added rule is TCP. + - The source IP address matches "192.168.1.1". + - The source port is HTTPS. + - The destination IP address matches "192.168.1.2". + - The destination port is HTTP. + """ + acl = router_with_acl_rules.acl + assert acl.acl[1].action == ACLAction.PERMIT assert acl.acl[1].protocol == IPProtocol.TCP assert acl.acl[1].src_ip_address == IPv4Address("192.168.1.1") - assert acl.acl[1].src_port == Port(8080) + assert acl.acl[1].src_port == Port.HTTPS assert acl.acl[1].dst_ip_address == IPv4Address("192.168.1.2") - assert acl.acl[1].dst_port == Port(80) + assert acl.acl[1].dst_port == Port.HTTP -def test_remove_rule(): - router = Router("Router") - acl = router.acl - acl.add_rule( - action=ACLAction.PERMIT, - protocol=IPProtocol.TCP, - src_ip_address=IPv4Address("192.168.1.1"), - src_port=Port(8080), - dst_ip_address=IPv4Address("192.168.1.2"), - dst_port=Port(80), - position=1, - ) +def test_remove_rule(router_with_acl_rules): + """ + Tests the removal of an ACL rule from the router's ACL. + + Asserts that accessing the removed rule index in the ACL returns None. + """ + acl = router_with_acl_rules.acl acl.remove_rule(1) - assert not acl.acl[1] + assert acl.acl[1] is None -def test_rules(): - router = Router("Router") - acl = router.acl - acl.add_rule( - action=ACLAction.PERMIT, - protocol=IPProtocol.TCP, - src_ip_address=IPv4Address("192.168.1.1"), - src_port=Port(8080), - dst_ip_address=IPv4Address("192.168.1.2"), - dst_port=Port(80), - position=1, - ) - acl.add_rule( - action=ACLAction.DENY, - protocol=IPProtocol.TCP, - src_ip_address=IPv4Address("192.168.1.3"), - src_port=Port(8080), - dst_ip_address=IPv4Address("192.168.1.4"), - dst_port=Port(80), - position=2, - ) - is_permitted, rule = acl.is_permitted( - protocol=IPProtocol.TCP, - src_ip_address=IPv4Address("192.168.1.1"), - src_port=Port(8080), - dst_ip_address=IPv4Address("192.168.1.2"), - dst_port=Port(80), +def test_traffic_permitted_by_specific_rule(router_with_acl_rules): + """ + Verifies that traffic matching a specific ACL rule is correctly permitted. + + Asserts traffic that matches a permit rule is allowed through the ACL. + """ + acl = router_with_acl_rules.acl + permitted_frame = Frame( + ethernet=EthernetHeader(src_mac_addr=generate_mac_address(), dst_mac_addr=generate_mac_address()), + ip=IPPacket(src_ip_address="192.168.1.1", dst_ip_address="192.168.1.2", protocol=IPProtocol.TCP), + tcp=TCPHeader(src_port=Port.HTTPS, dst_port=Port.HTTP), ) + is_permitted, _ = acl.is_permitted(permitted_frame) assert is_permitted - is_permitted, rule = acl.is_permitted( - protocol=IPProtocol.TCP, - src_ip_address=IPv4Address("192.168.1.3"), - src_port=Port(8080), - dst_ip_address=IPv4Address("192.168.1.4"), - dst_port=Port(80), + + +def test_traffic_denied_by_specific_rule(router_with_acl_rules): + """ + Verifies that traffic matching a specific ACL rule is correctly denied. + + Asserts traffic that matches a deny rule is blocked by the ACL. + """ + + acl = router_with_acl_rules.acl + not_permitted_frame = Frame( + ethernet=EthernetHeader(src_mac_addr=generate_mac_address(), dst_mac_addr=generate_mac_address()), + ip=IPPacket(src_ip_address="192.168.1.3", dst_ip_address="192.168.1.4", protocol=IPProtocol.TCP), + tcp=TCPHeader(src_port=Port(8080), dst_port=Port(80)), ) + is_permitted, _ = acl.is_permitted(not_permitted_frame) assert not is_permitted -def test_default_rule(): +def test_default_rule(router_with_acl_rules): + """ + Tests the default deny rule of the ACL. + + This test verifies that traffic which does not match any explicit permit rule in the ACL + is correctly denied, as per the common "default deny" security stance that ACLs implement. + + Asserts the frame does not match any of the predefined ACL rules and is therefore not permitted by the ACL, + illustrating the default deny behavior when no explicit permit rule is matched. + """ + acl = router_with_acl_rules.acl + not_permitted_frame = Frame( + ethernet=EthernetHeader(src_mac_addr=generate_mac_address(), dst_mac_addr=generate_mac_address()), + ip=IPPacket(src_ip_address="192.168.1.5", dst_ip_address="192.168.1.12", protocol=IPProtocol.UDP), + udp=UDPHeader(src_port=Port.HTTPS, dst_port=Port.HTTP), + ) + is_permitted, rule = acl.is_permitted(not_permitted_frame) + assert not is_permitted + + +def test_direct_ip_match_with_acl(router_with_wildcard_acl): + """ + Tests ACL functionality for a direct IP address match. + + Asserts direct IP address match traffic is permitted by the ACL rule. + """ + acl = router_with_wildcard_acl.acl + frame = Frame( + ethernet=EthernetHeader(src_mac_addr=generate_mac_address(), dst_mac_addr=generate_mac_address()), + ip=IPPacket(src_ip_address="192.168.1.1", dst_ip_address="10.1.1.2", protocol=IPProtocol.TCP), + tcp=TCPHeader(src_port=Port(8080), dst_port=Port(80)), + ) + assert acl.is_permitted(frame)[0], "Direct IP match should be permitted." + + +def test_ip_range_match_denied_with_acl(router_with_wildcard_acl): + """ + Tests ACL functionality for denying traffic from an IP range using wildcard masking. + + Asserts traffic from the specified IP range is correctly denied by the ACL rule. + """ + acl = router_with_wildcard_acl.acl + frame = Frame( + ethernet=EthernetHeader(src_mac_addr=generate_mac_address(), dst_mac_addr=generate_mac_address()), + ip=IPPacket(src_ip_address="192.168.1.100", dst_ip_address="10.1.1.3", protocol=IPProtocol.TCP), + tcp=TCPHeader(src_port=Port(8080), dst_port=Port(443)), + ) + assert not acl.is_permitted(frame)[0], "IP range match with wildcard mask should be denied." + + +def test_traffic_permitted_to_destination_range_with_acl(router_with_wildcard_acl): + """ + Tests ACL functionality for permitting traffic to a destination IP range using wildcard masking. + + Asserts traffic to the specified destination IP range is correctly permitted by the ACL rule. + """ + acl = router_with_wildcard_acl.acl + frame = Frame( + ethernet=EthernetHeader(src_mac_addr=generate_mac_address(), dst_mac_addr=generate_mac_address()), + ip=IPPacket(src_ip_address="192.168.1.50", dst_ip_address="10.2.200.200", protocol=IPProtocol.UDP), + udp=UDPHeader(src_port=Port(1433), dst_port=Port(1433)), + ) + assert acl.is_permitted(frame)[0], "Traffic to destination IP range should be permitted." + + +def test_ip_traffic_from_specific_subnet(): + """ + Tests that the ACL permits or denies IP traffic from specific subnets, mimicking a Cisco ACL rule for IP traffic. + + This test verifies the ACL's ability to permit all IP traffic from a specific subnet (192.168.1.0/24) while denying + traffic from other subnets. The test mimics a Cisco ACL rule that allows IP traffic from a specified range using + wildcard masking. + + The test frames are constructed with varying protocols (TCP, UDP, ICMP) and source IP addresses, to demonstrate the + rule's general applicability to all IP protocols and its enforcement based on source IP address range. + + Asserts + - Traffic from within the 192.168.1.0/24 subnet is permitted. + - Traffic from outside the 192.168.1.0/24 subnet is denied. + """ + router = Router("Router") acl = router.acl + # Add rules here as needed acl.add_rule( action=ACLAction.PERMIT, - protocol=IPProtocol.TCP, - src_ip_address=IPv4Address("192.168.1.1"), - src_port=Port(8080), - dst_ip_address=IPv4Address("192.168.1.2"), - dst_port=Port(80), + src_ip_address="192.168.1.0", + src_wildcard_mask="0.0.0.255", position=1, ) - acl.add_rule( - action=ACLAction.DENY, - protocol=IPProtocol.TCP, - src_ip_address=IPv4Address("192.168.1.3"), - src_port=Port(8080), - dst_ip_address=IPv4Address("192.168.1.4"), - dst_port=Port(80), - position=2, + + permitted_frame_1 = Frame( + ethernet=EthernetHeader(src_mac_addr=generate_mac_address(), dst_mac_addr=generate_mac_address()), + ip=IPPacket(src_ip_address="192.168.1.50", dst_ip_address="10.2.200.200", protocol=IPProtocol.TCP), + tcp=TCPHeader(src_port=Port.POSTGRES_SERVER, dst_port=Port.POSTGRES_SERVER), ) - is_permitted, rule = acl.is_permitted( - protocol=IPProtocol.UDP, - src_ip_address=IPv4Address("192.168.1.5"), - src_port=Port(8080), - dst_ip_address=IPv4Address("192.168.1.12"), - dst_port=Port(80), + + assert acl.is_permitted(permitted_frame_1)[0] + + permitted_frame_2 = Frame( + ethernet=EthernetHeader(src_mac_addr=generate_mac_address(), dst_mac_addr=generate_mac_address()), + ip=IPPacket(src_ip_address="192.168.1.10", dst_ip_address="85.199.214.101", protocol=IPProtocol.UDP), + udp=UDPHeader(src_port=Port.NTP, dst_port=Port.NTP), ) - assert not is_permitted + + assert acl.is_permitted(permitted_frame_2)[0] + + permitted_frame_3 = Frame( + ethernet=EthernetHeader(src_mac_addr=generate_mac_address(), dst_mac_addr=generate_mac_address()), + ip=IPPacket(src_ip_address="192.168.1.200", dst_ip_address="192.168.1.1", protocol=IPProtocol.ICMP), + icmp=ICMPPacket(identifier=1), + ) + + assert acl.is_permitted(permitted_frame_3)[0] + + not_permitted_frame_1 = Frame( + ethernet=EthernetHeader(src_mac_addr=generate_mac_address(), dst_mac_addr=generate_mac_address()), + ip=IPPacket(src_ip_address="192.168.0.50", dst_ip_address="10.2.200.200", protocol=IPProtocol.TCP), + tcp=TCPHeader(src_port=Port.POSTGRES_SERVER, dst_port=Port.POSTGRES_SERVER), + ) + + assert not acl.is_permitted(not_permitted_frame_1)[0] + + not_permitted_frame_2 = Frame( + ethernet=EthernetHeader(src_mac_addr=generate_mac_address(), dst_mac_addr=generate_mac_address()), + ip=IPPacket(src_ip_address="192.168.2.10", dst_ip_address="85.199.214.101", protocol=IPProtocol.UDP), + udp=UDPHeader(src_port=Port.NTP, dst_port=Port.NTP), + ) + + assert not acl.is_permitted(not_permitted_frame_2)[0] + + acl.show() From a8c1e2b9d97aaeeaacfc8b49964699cf661844d6 Mon Sep 17 00:00:00 2001 From: Chris McCarthy Date: Sat, 10 Feb 2024 21:32:13 +0000 Subject: [PATCH 26/39] #2205 - Fixed ACLRule.is_permitted function by returning a bool that indicates whether the rule was matched or not to allow the AccessControlList to know whether to pay attention to the rule or not when it's iterating over them. --- .../network/nodes/firewall.rst | 14 +-- .../network/hardware/nodes/network/router.py | 98 +++++++++++++------ 2 files changed, 73 insertions(+), 39 deletions(-) diff --git a/docs/source/simulation_components/network/nodes/firewall.rst b/docs/source/simulation_components/network/nodes/firewall.rst index 39f804c4..73168517 100644 --- a/docs/source/simulation_components/network/nodes/firewall.rst +++ b/docs/source/simulation_components/network/nodes/firewall.rst @@ -356,7 +356,7 @@ This function showcases each rule in an ACL, outlining its: - **Src IP and Dst IP**: Source and destination IP addresses. - **Src Wildcard and Dst** Wildcard: Wildcard masks for source and destination IP ranges. - **Src Port and Dst Port**: Source and destination ports. -- **Hit Count**: The number of times the rule has been matched by traffic. +- **Matched**: The number of times the rule has been matched by traffic. Example Output: @@ -365,7 +365,7 @@ Example Output: +---------------------------------------------------------------------------------------------------------------+ | firewall_1 - External Inbound Access Control List | +-------+--------+----------+--------+--------------+-----------+--------+--------------+-----------+-----------+ - | Index | Action | Protocol | Src IP | Src Wildcard | Src Port | Dst IP | Dst Wildcard | Dst Port | Hit Count | + | Index | Action | Protocol | Src IP | Src Wildcard | Src Port | Dst IP | Dst Wildcard | Dst Port | Matched | +-------+--------+----------+--------+--------------+-----------+--------+--------------+-----------+-----------+ | 22 | PERMIT | ANY | ANY | ANY | 219 (ARP) | ANY | ANY | 219 (ARP) | 1 | | 23 | PERMIT | ICMP | ANY | ANY | ANY | ANY | ANY | ANY | 0 | @@ -375,7 +375,7 @@ Example Output: +---------------------------------------------------------------------------------------------------------------+ | firewall_1 - External Outbound Access Control List | +-------+--------+----------+--------+--------------+-----------+--------+--------------+-----------+-----------+ - | Index | Action | Protocol | Src IP | Src Wildcard | Src Port | Dst IP | Dst Wildcard | Dst Port | Hit Count | + | Index | Action | Protocol | Src IP | Src Wildcard | Src Port | Dst IP | Dst Wildcard | Dst Port | Matched | +-------+--------+----------+--------+--------------+-----------+--------+--------------+-----------+-----------+ | 22 | PERMIT | ANY | ANY | ANY | 219 (ARP) | ANY | ANY | 219 (ARP) | 0 | | 23 | PERMIT | ICMP | ANY | ANY | ANY | ANY | ANY | ANY | 0 | @@ -385,7 +385,7 @@ Example Output: +---------------------------------------------------------------------------------------------------------------+ | firewall_1 - Internal Inbound Access Control List | +-------+--------+----------+--------+--------------+-----------+--------+--------------+-----------+-----------+ - | Index | Action | Protocol | Src IP | Src Wildcard | Src Port | Dst IP | Dst Wildcard | Dst Port | Hit Count | + | Index | Action | Protocol | Src IP | Src Wildcard | Src Port | Dst IP | Dst Wildcard | Dst Port | Matched | +-------+--------+----------+--------+--------------+-----------+--------+--------------+-----------+-----------+ | 1 | PERMIT | ANY | ANY | ANY | 123 (NTP) | ANY | ANY | 123 (NTP) | 1 | | 22 | PERMIT | ANY | ANY | ANY | 219 (ARP) | ANY | ANY | 219 (ARP) | 0 | @@ -396,7 +396,7 @@ Example Output: +---------------------------------------------------------------------------------------------------------------+ | firewall_1 - Internal Outbound Access Control List | +-------+--------+----------+--------+--------------+-----------+--------+--------------+-----------+-----------+ - | Index | Action | Protocol | Src IP | Src Wildcard | Src Port | Dst IP | Dst Wildcard | Dst Port | Hit Count | + | Index | Action | Protocol | Src IP | Src Wildcard | Src Port | Dst IP | Dst Wildcard | Dst Port | Matched | +-------+--------+----------+--------+--------------+-----------+--------+--------------+-----------+-----------+ | 1 | PERMIT | ANY | ANY | ANY | 123 (NTP) | ANY | ANY | 123 (NTP) | 1 | | 22 | PERMIT | ANY | ANY | ANY | 219 (ARP) | ANY | ANY | 219 (ARP) | 1 | @@ -407,7 +407,7 @@ Example Output: +---------------------------------------------------------------------------------------------------------------+ | firewall_1 - DMZ Inbound Access Control List | +-------+--------+----------+--------+--------------+-----------+--------+--------------+-----------+-----------+ - | Index | Action | Protocol | Src IP | Src Wildcard | Src Port | Dst IP | Dst Wildcard | Dst Port | Hit Count | + | Index | Action | Protocol | Src IP | Src Wildcard | Src Port | Dst IP | Dst Wildcard | Dst Port | Matched | +-------+--------+----------+--------+--------------+-----------+--------+--------------+-----------+-----------+ | 1 | PERMIT | ANY | ANY | ANY | 123 (NTP) | ANY | ANY | 123 (NTP) | 1 | | 22 | PERMIT | ANY | ANY | ANY | 219 (ARP) | ANY | ANY | 219 (ARP) | 0 | @@ -418,7 +418,7 @@ Example Output: +---------------------------------------------------------------------------------------------------------------+ | firewall_1 - DMZ Outbound Access Control List | +-------+--------+----------+--------+--------------+-----------+--------+--------------+-----------+-----------+ - | Index | Action | Protocol | Src IP | Src Wildcard | Src Port | Dst IP | Dst Wildcard | Dst Port | Hit Count | + | Index | Action | Protocol | Src IP | Src Wildcard | Src Port | Dst IP | Dst Wildcard | Dst Port | Matched | +-------+--------+----------+--------+--------------+-----------+--------+--------------+-----------+-----------+ | 1 | PERMIT | ANY | ANY | ANY | 123 (NTP) | ANY | ANY | 123 (NTP) | 1 | | 22 | PERMIT | ANY | ANY | ANY | 219 (ARP) | ANY | ANY | 219 (ARP) | 1 | diff --git a/src/primaite/simulator/network/hardware/nodes/network/router.py b/src/primaite/simulator/network/hardware/nodes/network/router.py index 0ad64d18..0d5b3d76 100644 --- a/src/primaite/simulator/network/hardware/nodes/network/router.py +++ b/src/primaite/simulator/network/hardware/nodes/network/router.py @@ -123,7 +123,7 @@ class ACLRule(SimComponent): dst_wildcard_mask: Optional[IPV4Address] = None src_port: Optional[Port] = None dst_port: Optional[Port] = None - hit_count: int = 0 + match_count: int = 0 def __str__(self) -> str: rule_strings = [] @@ -154,10 +154,10 @@ class ACLRule(SimComponent): state["src_port"] = self.src_port.name if self.src_port else None state["dst_ip_address"] = str(self.dst_ip_address) if self.dst_ip_address else None state["dst_port"] = self.dst_port.name if self.dst_port else None - state["hit_count"] = self.hit_count + state["match_count"] = self.match_count return state - def permit_frame_check(self, frame: Frame) -> bool: + def permit_frame_check(self, frame: Frame) -> Tuple[bool, bool]: """ Evaluates whether a given network frame should be permitted or denied based on this ACL rule. @@ -177,9 +177,13 @@ class ACLRule(SimComponent): 4. The frame is permitted if it matches all specified criteria and the rule's action is PERMIT. Conversely, it is not permitted if any criterion does not match or if the rule's action is DENY. - :param frame (Frame): The network frame to be evaluated. - :return: True if the frame is permitted by this ACL rule, False otherwise. + :param frame: The network frame to be evaluated. + :return: A tuple containing two boolean values: The first indicates if the frame is permitted by this rule ( + True if permitted, otherwise False). The second indicates if the frame matches the rule's criteria (True + if it matches, otherwise False). """ + permitted = False + frame_matches_rule = False protocol_matches = self.protocol == frame.ip.protocol if self.protocol else True src_ip_matches = self.src_ip_address is None # Assume match if no specific src IP is defined @@ -222,10 +226,10 @@ class ACLRule(SimComponent): # The frame is permitted if all conditions are met if protocol_matches and src_ip_matches and dst_ip_matches and src_port_matches and dst_port_matches: - return self.action == ACLAction.PERMIT - else: - # If any condition is not met, the decision depends on the rule action - return False + frame_matches_rule = True + permitted = self.action == ACLAction.PERMIT + + return permitted, frame_matches_rule class AccessControlList(SimComponent): @@ -336,6 +340,7 @@ class AccessControlList(SimComponent): ) def _init_request_manager(self) -> RequestManager: + # TODO: Add src and dst wildcard masks as positional args in this request. rm = super()._init_request_manager() # When the request reaches this action, it should now contain solely positional args for the 'add_rule' action. @@ -351,13 +356,13 @@ class AccessControlList(SimComponent): "add_rule", RequestType( func=lambda request, context: self.add_rule( - ACLAction[request[0]], - None if request[1] == "ALL" else IPProtocol[request[1]], - None if request[2] == "ALL" else IPv4Address(request[2]), - None if request[3] == "ALL" else Port[request[3]], - None if request[4] == "ALL" else IPv4Address(request[4]), - None if request[5] == "ALL" else Port[request[5]], - int(request[6]), + action=ACLAction[request[0]], + protocol=None if request[1] == "ALL" else IPProtocol[request[1]], + src_ip_address=None if request[2] == "ALL" else IPv4Address(request[2]), + src_port=None if request[3] == "ALL" else Port[request[3]], + dst_ip_address=None if request[4] == "ALL" else IPv4Address(request[4]), + dst_port=None if request[5] == "ALL" else Port[request[5]], + position=int(request[6]), ) ), ) @@ -410,18 +415,47 @@ class AccessControlList(SimComponent): position: int = 0, ) -> None: """ - Add a new ACL rule. + Adds a new ACL rule to control network traffic based on specified criteria. - :param ACLAction action: Action to be performed (Permit/Deny). - :param protocol: Network protocol. Optional, default is None. - :param src_ip_address: Source IP address. Optional, default is None. - :param src_wildcard_mask: Source IP wildcard mask. Optional, default is None. - :param src_port: Source port number. Optional, default is None. - :param dst_ip_address: Destination IP address. Optional, default is None. - :param dst_wildcard_mask: Destination IP wildcard mask. Optional, default is None. - :param dst_port: Destination port number. Optional, default is None. - :param int position: Position in the ACL list to insert the rule. Optional, default is 1. - :raises ValueError: When the position is out of bounds. + This method allows defining rules that specify whether to permit or deny traffic with particular + characteristics, including source and destination IP addresses, ports, and protocols. Wildcard masks can be + used to specify a range of IP addresses, allowing for broader rule application. If specifying a dedicated IP + address without needing a range, the wildcard mask can be omitted. + + Example: + >>> # To block all traffic except SSH from a specific IP range to a server: + >>> router = Router("router") + >>> router.add_rule( + ... action=ACLAction.DENY, + ... protocol=IPProtocol.TCP, + ... src_ip_address="192.168.1.0", + ... src_wildcard_mask="0.0.0.255", + ... dst_ip_address="10.10.10.5", + ... dst_port=Port.SSH, + ... position=5 + ... ) + >>> # This permits SSH traffic from the 192.168.1.0/24 subnet to the 10.10.10.5 server. + >>> + >>> # Then if we want to allow a specific IP address from this subnet to SSH into the server + >>> router.add_rule( + ... action=ACLAction.PERMIT, + ... protocol=IPProtocol.TCP, + ... src_ip_address="192.168.1.25", + ... dst_ip_address="10.10.10.5", + ... dst_port=Port.SSH, + ... position=4 + ... ) + + :param action: The action to take (Permit/Deny) when the rule matches traffic. + :param protocol: The network protocol (TCP/UDP/ICMP) to match. If None, matches any protocol. + :param src_ip_address: The source IP address to match. If None, matches any source IP. + :param src_wildcard_mask: Specifies a wildcard mask for the source IP. Use for IP ranges. + :param dst_ip_address: The destination IP address to match. If None, matches any destination IP. + :param dst_wildcard_mask: Specifies a wildcard mask for the destination IP. Use for IP ranges. + :param src_port: The source port to match. If None, matches any source port. + :param dst_port: The destination port to match. If None, matches any destination port. + :param int position: The position in the ACL list to insert this rule. Defaults is position 0 right at the top. + :raises ValueError: If the position is out of bounds. """ if 0 <= position < self.max_acl_rules: if self._acl[position]: @@ -461,15 +495,15 @@ class AccessControlList(SimComponent): if not _rule: continue - if _rule.permit_frame_check(frame): - permitted = True + permitted, rule_match = _rule.permit_frame_check(frame) + if rule_match: rule = _rule break if not rule: permitted = self.implicit_action == ACLAction.PERMIT rule = self.implicit_rule - rule.hit_count += 1 + rule.match_count += 1 return permitted, rule @@ -528,7 +562,7 @@ class AccessControlList(SimComponent): "Dst IP", "Dst Wildcard", "Dst Port", - "Hit Count", + "Matched", ] ) if markdown: @@ -549,7 +583,7 @@ class AccessControlList(SimComponent): rule.dst_ip_address if rule.dst_ip_address else "ANY", rule.dst_wildcard_mask if rule.dst_wildcard_mask else "ANY", f"{rule.dst_port.value} ({rule.dst_port.name})" if rule.dst_port else "ANY", - rule.hit_count, + rule.match_count, ] ) print(table) From 9df7ceed3deb733a0b6f5a509f7dc76922e4edc7 Mon Sep 17 00:00:00 2001 From: Chris McCarthy Date: Sat, 10 Feb 2024 23:44:08 +0000 Subject: [PATCH 27/39] #2205 - feat: Implement AirSpace and WirelessRouter for Enhanced Network Simulations This commit introduces the AirSpace and WirelessRouter classes, expanding the PrimAITE's capabilities to simulate wireless networking environments. The AirSpace class manages wireless communications, ensuring seamless transmission across different frequencies. Meanwhile, the WirelessRouter class integrates both wired and wireless networking functionalities. --- CHANGELOG.md | 4 + src/primaite/simulator/network/airspace.py | 308 ++++++++++++++++++ .../simulator/network/hardware/base.py | 80 ----- .../hardware/nodes/network/wireless_router.py | 217 ++++++++++++ 4 files changed, 529 insertions(+), 80 deletions(-) create mode 100644 src/primaite/simulator/network/airspace.py create mode 100644 src/primaite/simulator/network/hardware/nodes/network/wireless_router.py diff --git a/CHANGELOG.md b/CHANGELOG.md index a18e4d2f..cc52a197 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -77,6 +77,10 @@ SessionManager. - Interface configuration to establish connectivity and define network parameters for external, internal, and DMZ interfaces. - Protocol and service management to oversee traffic and enforce security policies. - Dynamic traffic processing and filtering to ensure network security and integrity. +- `AirSpace` class to simulate wireless communications, managing wireless interfaces and facilitating the transmission of frames within specified frequencies. +- `AirSpaceFrequency` enum for defining standard wireless frequencies, including 2.4 GHz and 5 GHz bands, to support realistic wireless network simulations. +- `WirelessRouter` class, extending the `Router` class, to incorporate wireless networking capabilities alongside traditional wired connections. This class allows the configuration of wireless access points with specific IP settings and operating frequencies. + ### Changed - Integrated the RouteTable into the Routers frame processing. diff --git a/src/primaite/simulator/network/airspace.py b/src/primaite/simulator/network/airspace.py new file mode 100644 index 00000000..56cd1cc7 --- /dev/null +++ b/src/primaite/simulator/network/airspace.py @@ -0,0 +1,308 @@ +from __future__ import annotations + +from abc import ABC, abstractmethod +from enum import Enum +from typing import Any, Dict, Final, List, Optional + +from prettytable import PrettyTable + +from primaite import getLogger +from primaite.simulator.network.hardware.base import Layer3Interface, NetworkInterface, WiredNetworkInterface +from primaite.simulator.network.hardware.node_operating_state import NodeOperatingState +from primaite.simulator.network.transmission.data_link_layer import Frame +from primaite.simulator.system.core.packet_capture import PacketCapture + +_LOGGER = getLogger(__name__) + +__all__ = ["AIR_SPACE", "AirSpaceFrequency", "WirelessNetworkInterface", "IPWirelessNetworkInterface"] + + +class AirSpace: + """Represents a wireless airspace, managing wireless network interfaces and handling wireless transmission.""" + + def __init__(self): + self._wireless_interfaces: Dict[str, WirelessNetworkInterface] = {} + self._wireless_interfaces_by_frequency: Dict[AirSpaceFrequency, List[WirelessNetworkInterface]] = {} + + def show(self, frequency: Optional[AirSpaceFrequency] = None): + """ + Displays a summary of wireless interfaces in the airspace, optionally filtered by a specific frequency. + + :param frequency: The frequency band to filter devices by. If None, devices for all frequencies are shown. + """ + table = PrettyTable() + table.field_names = ["Connected Node", "MAC Address", "IP Address", "Subnet Mask", "Frequency", "Status"] + + # If a specific frequency is provided, filter by it; otherwise, use all frequencies. + frequencies_to_show = [frequency] if frequency else self._wireless_interfaces_by_frequency.keys() + + for freq in frequencies_to_show: + interfaces = self._wireless_interfaces_by_frequency.get(freq, []) + for interface in interfaces: + status = "Enabled" if interface.enabled else "Disabled" + table.add_row( + [ + interface._connected_node.hostname, # noqa + interface.mac_address, + interface.ip_address if hasattr(interface, "ip_address") else None, + interface.subnet_mask if hasattr(interface, "subnet_mask") else None, + str(freq), + status, + ] + ) + + print(table) + + def add_wireless_interface(self, wireless_interface: WirelessNetworkInterface): + """ + Adds a wireless network interface to the airspace if it's not already present. + + :param wireless_interface: The wireless network interface to be added. + """ + if wireless_interface.mac_address not in self._wireless_interfaces: + self._wireless_interfaces[wireless_interface.mac_address] = wireless_interface + if wireless_interface.frequency not in self._wireless_interfaces_by_frequency: + self._wireless_interfaces_by_frequency[wireless_interface.frequency] = [] + self._wireless_interfaces_by_frequency[wireless_interface.frequency].append(wireless_interface) + + def remove_wireless_interface(self, wireless_interface: WirelessNetworkInterface): + """ + Removes a wireless network interface from the airspace if it's present. + + :param wireless_interface: The wireless network interface to be removed. + """ + if wireless_interface.mac_address in self._wireless_interfaces: + self._wireless_interfaces.pop(wireless_interface.mac_address) + self._wireless_interfaces_by_frequency[wireless_interface.frequency].remove(wireless_interface) + + def clear(self): + """ + Clears all wireless network interfaces and their frequency associations from the airspace. + + After calling this method, the airspace will contain no wireless network interfaces, and transmissions cannot + occur until new interfaces are added again. + """ + self._wireless_interfaces.clear() + self._wireless_interfaces_by_frequency.clear() + + def transmit(self, frame: Frame, sender_network_interface: WirelessNetworkInterface): + """ + Transmits a frame to all enabled wireless network interfaces on a specific frequency within the airspace. + + This ensures that a wireless interface does not receive its own transmission. + + :param frame: The frame to be transmitted. + :param sender_network_interface: The wireless network interface sending the frame. This interface will be + excluded from the list of receivers to prevent it from receiving its own transmission. + """ + for wireless_interface in self._wireless_interfaces_by_frequency.get(sender_network_interface.frequency, []): + if wireless_interface != sender_network_interface and wireless_interface.enabled: + wireless_interface.receive_frame(frame) + + +AIR_SPACE: Final[AirSpace] = AirSpace() +""" +A singleton instance of the AirSpace class, representing the global wireless airspace. + +This instance acts as the central management point for all wireless communications within the simulated network +environment. By default, there is only one airspace in the simulation, making this variable a singleton that +manages the registration, removal, and transmission of wireless frames across all wireless network interfaces configured +in the simulation. It ensures that wireless frames are appropriately transmitted to and received by wireless +interfaces based on their operational status and frequency band. +""" + + +class AirSpaceFrequency(Enum): + """Enumeration representing the operating frequencies for wireless communications.""" + + WIFI_2_4 = 2.4e9 + """WiFi 2.4 GHz. Known for its extensive range and ability to penetrate solid objects effectively.""" + WIFI_5 = 5e9 + """WiFi 5 GHz. Known for its higher data transmission speeds and reduced interference from other devices.""" + + def __str__(self) -> str: + if self == AirSpaceFrequency.WIFI_2_4: + return "WiFi 2.4 GHz" + elif self == AirSpaceFrequency.WIFI_5: + return "WiFi 5 GHz" + else: + return "Unknown Frequency" + + +class WirelessNetworkInterface(NetworkInterface, ABC): + """ + Represents a wireless network interface in a network device. + + This abstract base class models wireless network interfaces, encapsulating properties and behaviors specific to + wireless connectivity. It provides a framework for managing wireless connections, including signal strength, + security protocols, and other wireless-specific attributes and methods. + + Wireless network interfaces differ from wired ones in their medium of communication, relying on radio frequencies + for data transmission and reception. This class serves as a base for more specific types of wireless network + interfaces, such as Wi-Fi adapters or radio network interfaces, ensuring that essential wireless functionality is + defined and standardised. + + Inherits from: + - NetworkInterface: Provides basic network interface properties and methods. + + As an abstract base class, it requires subclasses to implement specific methods related to wireless communication + and may define additional properties and methods specific to wireless technology. + """ + + frequency: AirSpaceFrequency = AirSpaceFrequency.WIFI_2_4 + + def enable(self): + """Attempt to enable the network interface.""" + if self.enabled: + return + + if not self._connected_node: + _LOGGER.error(f"Interface {self} cannot be enabled as it is not connected to a Node") + return + + if self._connected_node.operating_state != NodeOperatingState.ON: + self._connected_node.sys_log.info( + f"Interface {self} cannot be enabled as the connected Node is not powered on" + ) + return + + self.enabled = True + self._connected_node.sys_log.info(f"Network Interface {self} enabled") + self.pcap = PacketCapture(hostname=self._connected_node.hostname, interface_num=self.port_num) + AIR_SPACE.add_wireless_interface(self) + + def disable(self): + """Disable the network interface.""" + if not self.enabled: + return + self.enabled = False + if self._connected_node: + self._connected_node.sys_log.info(f"Network Interface {self} disabled") + else: + _LOGGER.debug(f"Interface {self} disabled") + AIR_SPACE.remove_wireless_interface(self) + + def send_frame(self, frame: Frame) -> bool: + """ + Attempts to send a network frame over the airspace. + + This method sends a frame if the network interface is enabled and connected to a wireless airspace. It captures + the frame using PCAP (if available) and transmits it through the airspace. Returns True if the frame is + successfully sent, False otherwise (e.g., if the network interface is disabled). + + :param frame: The network frame to be sent. + :return: True if the frame is sent successfully, False if the network interface is disabled. + """ + if self.enabled: + frame.set_sent_timestamp() + self.pcap.capture_outbound(frame) + AIR_SPACE.transmit(frame, self) + return True + # Cannot send Frame as the network interface is not enabled + return False + + @abstractmethod + def receive_frame(self, frame: Frame) -> bool: + """ + Receives a network frame on the network interface. + + :param frame: The network frame being received. + :return: A boolean indicating whether the frame was successfully received. + """ + pass + + +class IPWirelessNetworkInterface(WirelessNetworkInterface, Layer3Interface, ABC): + """ + Represents an IP wireless network interface. + + This interface operates at both the data link layer (Layer 2) and the network layer (Layer 3) of the OSI model, + specifically tailored for IP-based communication over wireless connections. This abstract class provides a + template for creating specific wireless network interfaces that support Internet Protocol (IP) functionalities. + + As this class is a combination of its parent classes without additional attributes or methods, please refer to + the documentation of `WirelessNetworkInterface` and `Layer3Interface` for more details on the supported operations + and functionalities. + + The class inherits from: + - `WirelessNetworkInterface`: Providing the functionalities and characteristics of a wireless connection, such as + managing wireless signal transmission, reception, and associated wireless protocols. + - `Layer3Interface`: Enabling network layer capabilities, including IP address assignment, routing, and + potentially, Layer 3 protocols like IPsec. + + As an abstract class, `IPWirelessNetworkInterface` does not implement specific methods but ensures that any derived + class provides implementations for the functionalities of both `WirelessNetworkInterface` and `Layer3Interface`. + This setup is ideal for representing network interfaces in devices that require wireless connections and are capable + of IP routing and addressing, such as wireless routers, access points, and wireless end-host devices like + smartphones and laptops. + + This class should be extended by concrete classes that define specific behaviors and properties of an IP-capable + wireless network interface. + """ + + def model_post_init(self, __context: Any) -> None: + """ + Performs post-initialisation checks to ensure the model's IP configuration is valid. + + This method is invoked after the initialisation of a network model object to validate its network settings, + particularly to ensure that the assigned IP address is not a network address. This validation is crucial for + maintaining the integrity of network simulations and avoiding configuration errors that could lead to + unrealistic or incorrect behavior. + + :param __context: Contextual information or parameters passed to the method, used for further initializing or + validating the model post-creation. + :raises ValueError: If the IP address is the same as the network address, indicating an incorrect configuration. + """ + if self.ip_network.network_address == self.ip_address: + raise ValueError(f"{self.ip_address}/{self.subnet_mask} must not be a network address") + + def describe_state(self) -> Dict: + """ + Produce a dictionary describing the current state of this object. + + :return: Current state of this object and child objects. + :rtype: Dict + """ + # Get the state from the WiredNetworkInterface + state = WiredNetworkInterface.describe_state(self) + + # Update the state with information from Layer3Interface + state.update(Layer3Interface.describe_state(self)) + + state["frequency"] = self.frequency + + return state + + def set_original_state(self): + """Sets the original state.""" + vals_to_include = {"ip_address", "subnet_mask", "mac_address", "speed", "mtu", "wake_on_lan", "enabled"} + self._original_state = self.model_dump(include=vals_to_include) + + def enable(self): + """ + Enables this wired network interface and attempts to send a "hello" message to the default gateway. + + This method activates the network interface, making it operational for network communications. After enabling, + it tries to initiate a default gateway "hello" process, typically to establish initial connectivity and resolve + the default gateway's MAC address. This step is crucial for ensuring the interface can successfully send data + to and receive data from the network. + + The method safely handles cases where the connected node might not have a default gateway set or the + `default_gateway_hello` method is not defined, ignoring such errors to proceed without interruption. + """ + super().enable() + try: + pass + self._connected_node.default_gateway_hello() + except AttributeError: + pass + + @abstractmethod + def receive_frame(self, frame: Frame) -> bool: + """ + Receives a network frame on the interface. + + :param frame: The network frame being received. + :return: A boolean indicating whether the frame was successfully received. + """ + pass diff --git a/src/primaite/simulator/network/hardware/base.py b/src/primaite/simulator/network/hardware/base.py index 55640121..7354725a 100644 --- a/src/primaite/simulator/network/hardware/base.py +++ b/src/primaite/simulator/network/hardware/base.py @@ -420,86 +420,6 @@ class IPWiredNetworkInterface(WiredNetworkInterface, Layer3Interface, ABC): pass -class WirelessNetworkInterface(NetworkInterface, ABC): - """ - Represents a wireless network interface in a network device. - - This abstract base class models wireless network interfaces, encapsulating properties and behaviors specific to - wireless connectivity. It provides a framework for managing wireless connections, including signal strength, - security protocols, and other wireless-specific attributes and methods. - - Wireless network interfaces differ from wired ones in their medium of communication, relying on radio frequencies - for data transmission and reception. This class serves as a base for more specific types of wireless interfaces, - such as Wi-Fi adapters or radio network interfaces, ensuring that essential wireless functionality is defined - and standardised. - - Inherits from: - - NetworkInterface: Provides basic network interface properties and methods. - - As an abstract base class, it requires subclasses to implement specific methods related to wireless communication - and may define additional properties and methods specific to wireless technology. - """ - - -class IPWirelessNetworkInterface(WiredNetworkInterface, Layer3Interface, ABC): - """ - Represents an IP wireless network interface. - - This interface operates at both the data link layer (Layer 2) and the network layer (Layer 3) of the OSI model, - specifically tailored for IP-based communication over wireless connections. This abstract class provides a - template for creating specific wireless network interfaces that support Internet Protocol (IP) functionalities. - - As this class is a combination of its parent classes without additional attributes or methods, please refer to - the documentation of `WirelessNetworkInterface` and `Layer3Interface` for more details on the supported operations - and functionalities. - - The class inherits from: - - `WirelessNetworkInterface`: Providing the functionalities and characteristics of a wireless connection, such as - managing wireless signal transmission, reception, and associated wireless protocols. - - `Layer3Interface`: Enabling network layer capabilities, including IP address assignment, routing, and - potentially, Layer 3 protocols like IPsec. - - As an abstract class, `IPWirelessNetworkInterface` does not implement specific methods but ensures that any derived - class provides implementations for the functionalities of both `WirelessNetworkInterface` and `Layer3Interface`. - This setup is ideal for representing network interfaces in devices that require wireless connections and are capable - of IP routing and addressing, such as wireless routers, access points, and wireless end-host devices like - smartphones and laptops. - - This class should be extended by concrete classes that define specific behaviors and properties of an IP-capable - wireless network interface. - """ - - @abstractmethod - def enable(self): - """Enable the interface.""" - pass - - @abstractmethod - def disable(self): - """Disable the interface.""" - pass - - @abstractmethod - def send_frame(self, frame: Frame) -> bool: - """ - Attempts to send a network frame through the interface. - - :param frame: The network frame to be sent. - :return: A boolean indicating whether the frame was successfully sent. - """ - pass - - @abstractmethod - def receive_frame(self, frame: Frame) -> bool: - """ - Receives a network frame on the interface. - - :param frame: The network frame being received. - :return: A boolean indicating whether the frame was successfully received. - """ - pass - - class Link(SimComponent): """ Represents a network link between NIC<-->NIC, NIC<-->SwitchPort, or SwitchPort<-->SwitchPort. diff --git a/src/primaite/simulator/network/hardware/nodes/network/wireless_router.py b/src/primaite/simulator/network/hardware/nodes/network/wireless_router.py new file mode 100644 index 00000000..3a797031 --- /dev/null +++ b/src/primaite/simulator/network/hardware/nodes/network/wireless_router.py @@ -0,0 +1,217 @@ +from typing import Any, Dict, Union + +from pydantic import validate_call + +from primaite.simulator.network.airspace import AirSpaceFrequency, IPWirelessNetworkInterface +from primaite.simulator.network.hardware.nodes.network.router import Router, RouterInterface +from primaite.simulator.network.transmission.data_link_layer import Frame +from primaite.utils.validators import IPV4Address + + +class WirelessAccessPoint(IPWirelessNetworkInterface): + """ + Represents a Wireless Access Point (AP) in a network. + + This class models a Wireless Access Point, a device that allows wireless devices to connect to a wired network + using Wi-Fi or other wireless standards. The Wireless Access Point bridges the wireless and wired segments of + the network, allowing wireless devices to communicate with other devices on the network. + + As an integral component of wireless networking, a Wireless Access Point provides functionalities for network + management, signal broadcasting, security enforcement, and connection handling. It also possesses Layer 3 + capabilities such as IP addressing and subnetting, allowing for network segmentation and routing. + + Inherits from: + - WirelessNetworkInterface: Provides basic properties and methods specific to wireless interfaces. + - Layer3Interface: Provides Layer 3 properties like ip_address and subnet_mask, enabling the device to manage + network traffic and routing. + + This class can be further specialised or extended to support specific features or standards related to wireless + networking, such as different Wi-Fi versions, frequency bands, or advanced security protocols. + """ + + def model_post_init(self, __context: Any) -> None: + """ + Performs post-initialisation checks to ensure the model's IP configuration is valid. + + This method is invoked after the initialisation of a network model object to validate its network settings, + particularly to ensure that the assigned IP address is not a network address. This validation is crucial for + maintaining the integrity of network simulations and avoiding configuration errors that could lead to + unrealistic or incorrect behavior. + + :param __context: Contextual information or parameters passed to the method, used for further initializing or + validating the model post-creation. + :raises ValueError: If the IP address is the same as the network address, indicating an incorrect configuration. + """ + if self.ip_network.network_address == self.ip_address: + raise ValueError(f"{self.ip_address}/{self.subnet_mask} must not be a network address") + + def describe_state(self) -> Dict: + """ + Produce a dictionary describing the current state of this object. + + :return: Current state of this object and child objects. + :rtype: Dict + """ + return super().describe_state() + + def receive_frame(self, frame: Frame) -> bool: + """ + Receives a network frame on the interface. + + :param frame: The network frame being received. + :return: A boolean indicating whether the frame was successfully received. + """ + if self.enabled: + frame.decrement_ttl() + if frame.ip and frame.ip.ttl < 1: + self._connected_node.sys_log.info("Frame discarded as TTL limit reached") + return False + frame.set_received_timestamp() + self.pcap.capture_inbound(frame) + # If this destination or is broadcast + if frame.ethernet.dst_mac_addr == self.mac_address or frame.ethernet.dst_mac_addr == "ff:ff:ff:ff:ff:ff": + self._connected_node.receive_frame(frame=frame, from_network_interface=self) + return True + return False + + def __str__(self) -> str: + """ + String representation of the NIC. + + :return: A string combining the port number, MAC address and IP address of the NIC. + """ + return f"Port {self.port_num}: {self.mac_address}/{self.ip_address} ({self.frequency})" + + +class WirelessRouter(Router): + """ + A WirelessRouter class that extends the functionality of a standard Router to include wireless capabilities. + + This class represents a network device that performs routing functions similar to a traditional router but also + includes the functionality of a wireless access point. This allows the WirelessRouter to not only direct traffic + between wired networks but also to manage and facilitate wireless network connections. + + A WirelessRouter is instantiated and configured with both wired and wireless interfaces. The wired interfaces are + managed similarly to those in a standard Router, while the wireless interfaces require additional configuration + specific to wireless settings, such as setting the frequency band (e.g., 2.4 GHz or 5 GHz for Wi-Fi). + + The WirelessRouter facilitates creating a network environment where devices can be interconnected via both + Ethernet (wired) and Wi-Fi (wireless), making it an essential component for simulating more complex and realistic + network topologies within PrimAITE. + + Example: + >>> wireless_router = WirelessRouter(hostname="wireless_router_1") + >>> wireless_router.configure_router_interface( + ... ip_address="192.168.1.1", + ... subnet_mask="255.255.255.0" + ... ) + >>> wireless_router.configure_wireless_access_point( + ... ip_address="10.10.10.1", + ... subnet_mask="255.255.255.0" + ... frequency=AirSpaceFrequency.WIFI_2_4 + ... ) + """ + + network_interfaces: Dict[str, Union[RouterInterface, WirelessAccessPoint]] = {} + network_interface: Dict[int, Union[RouterInterface, WirelessAccessPoint]] = {} + + def __init__(self, hostname: str, **kwargs): + super().__init__(hostname=hostname, num_ports=0, **kwargs) + + wap = WirelessAccessPoint(ip_address="127.0.0.1", subnet_mask="255.0.0.0", gateway="0.0.0.0") + wap.port_num = 1 + self.connect_nic(wap) + self.network_interface[1] = wap + + router_interface = RouterInterface(ip_address="127.0.0.1", subnet_mask="255.0.0.0", gateway="0.0.0.0") + router_interface.port_num = 2 + self.connect_nic(router_interface) + self.network_interface[2] = router_interface + + self.set_original_state() + + @property + def wireless_access_point(self) -> WirelessAccessPoint: + """ + Retrieves the wireless access point interface associated with this wireless router. + + This property provides direct access to the WirelessAccessPoint interface of the router, facilitating wireless + communications. Specifically, it returns the interface configured on port 1, dedicated to establishing and + managing wireless network connections. This interface is essential for enabling wireless connectivity, + allowing devices within connect to the network wirelessly. + + :return: The WirelessAccessPoint instance representing the wireless connection interface on port 1 of the + wireless router. + """ + return self.network_interface[1] + + @validate_call() + def configure_wireless_access_point( + self, + ip_address: IPV4Address, + subnet_mask: IPV4Address, + frequency: AirSpaceFrequency = AirSpaceFrequency.WIFI_2_4, + ): + """ + Configures a wireless access point (WAP). + + Sets its IP address, subnet mask, and operating frequency. This method ensures the wireless access point is + properly set up to manage wireless communication over the specified frequency band. + + The method first disables the WAP to safely apply configuration changes. After configuring the IP settings, + it sets the WAP to operate on the specified frequency band and then re-enables the WAP for operation. + + :param ip_address: The IP address to be assigned to the wireless access point. + :param subnet_mask: The subnet mask associated with the IP address + :param frequency: The operating frequency of the wireless access point, defined by the AirSpaceFrequency + enum. This determines the frequency band (e.g., 2.4 GHz or 5 GHz) the access point will use for wireless + communication. Default is AirSpaceFrequency.WIFI_2_4. + """ + self.wireless_access_point.disable() # Temporarily disable the WAP for reconfiguration + network_interface = self.network_interface[1] + network_interface.ip_address = ip_address + network_interface.subnet_mask = subnet_mask + self.sys_log.info(f"Configured WAP {network_interface}") + self.set_original_state() + self.wireless_access_point.frequency = frequency # Set operating frequency + self.wireless_access_point.enable() # Re-enable the WAP with new settings + + @property + def router_interface(self) -> RouterInterface: + """ + Retrieves the router interface associated with this wireless router. + + This property provides access to the router interface configured for wired connections. It specifically + returns the interface configured on port 2, which is reserved for wired LAN/WAN connections. + + :return: The RouterInterface instance representing the wired LAN/WAN connection on port 2 of the wireless + router. + """ + return self.network_interface[2] + + @validate_call() + def configure_router_interface( + self, + ip_address: IPV4Address, + subnet_mask: IPV4Address, + ): + """ + Configures a router interface. + + Sets its IP address and subnet mask. + + The method first disables the router interface to safely apply configuration changes. After configuring the IP + settings, it re-enables the router interface for operation. + + :param ip_address: The IP address to be assigned to the router interface. + :param subnet_mask: The subnet mask associated with the IP address + """ + self.router_interface.disable() # Temporarily disable the router interface for reconfiguration + super().configure_port(port=2, ip_address=ip_address, subnet_mask=subnet_mask) # Set IP configuration + self.router_interface.enable() # Re-enable the router interface with new settings + + def configure_port(self, port: int, ip_address: Union[IPV4Address, str], subnet_mask: Union[IPV4Address, str]): + """Not Implemented.""" + raise NotImplementedError( + "Please use the 'configure_wireless_access_point' and 'configure_router_interface' functions." + ) From da92d742366c574074e14070ae313897325e8888 Mon Sep 17 00:00:00 2001 From: Czar Echavez Date: Mon, 12 Feb 2024 09:01:30 +0000 Subject: [PATCH 28/39] #2258: remove unnecessary ntp server check --- src/primaite/simulator/system/services/ntp/ntp_client.py | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/src/primaite/simulator/system/services/ntp/ntp_client.py b/src/primaite/simulator/system/services/ntp/ntp_client.py index c9935a16..ddd794ae 100644 --- a/src/primaite/simulator/system/services/ntp/ntp_client.py +++ b/src/primaite/simulator/system/services/ntp/ntp_client.py @@ -132,7 +132,6 @@ class NTPClient(Service): super().apply_timestep(timestep) if self.operating_state == ServiceOperatingState.RUNNING: # request time from server - if self.ntp_server is not None: - self.request_time() + self.request_time() else: self.sys_log.debug(f"{self.name} ntp client not running") From 7beacfd95fb6c48f8f3581bd58be1addd42a1422 Mon Sep 17 00:00:00 2001 From: Czar Echavez Date: Mon, 12 Feb 2024 11:41:55 +0000 Subject: [PATCH 29/39] #2258: missing some configuration items + added more tests --- src/primaite/game/game.py | 11 ++++++++++- tests/assets/configs/basic_switched_network.yaml | 6 ++++++ tests/integration_tests/game_configuration.py | 16 +++++++++++++++- 3 files changed, 31 insertions(+), 2 deletions(-) diff --git a/src/primaite/game/game.py b/src/primaite/game/game.py index 6ccd2f59..c03bca36 100644 --- a/src/primaite/game/game.py +++ b/src/primaite/game/game.py @@ -283,7 +283,16 @@ class PrimaiteGame: opt = service_cfg["options"] new_service.configure_backup(backup_server=IPv4Address(opt.get("backup_server_ip"))) new_service.start() - + if service_type == "FTPServer": + if "options" in service_cfg: + opt = service_cfg["options"] + new_service.server_password = opt.get("server_password") + new_service.start() + if service_type == "NTPClient": + if "options" in service_cfg: + opt = service_cfg["options"] + new_service.ntp_server = IPv4Address(opt.get("ntp_server_ip")) + new_service.start() if "applications" in node_cfg: for application_cfg in node_cfg["applications"]: new_application = None diff --git a/tests/assets/configs/basic_switched_network.yaml b/tests/assets/configs/basic_switched_network.yaml index 0050a0cb..d1cec079 100644 --- a/tests/assets/configs/basic_switched_network.yaml +++ b/tests/assets/configs/basic_switched_network.yaml @@ -85,6 +85,7 @@ simulation: type: DatabaseClient options: db_server_ip: 192.168.1.10 + server_password: arcd - ref: data_manipulation_bot type: DataManipulationBot options: @@ -92,6 +93,7 @@ simulation: data_manipulation_p_of_success: 0.8 payload: "DELETE" server_ip: 192.168.1.21 + server_password: arcd - ref: dos_bot type: DoSBot options: @@ -116,8 +118,12 @@ simulation: type: WebServer - ref: client_1_ftp_server type: FTPServer + options: + server_password: arcd - ref: client_1_ntp_client type: NTPClient + options: + ntp_server_ip: 192.168.1.10 - ref: client_1_ntp_server type: NTPServer - ref: client_2 diff --git a/tests/integration_tests/game_configuration.py b/tests/integration_tests/game_configuration.py index 9db894c5..3bd870e3 100644 --- a/tests/integration_tests/game_configuration.py +++ b/tests/integration_tests/game_configuration.py @@ -9,7 +9,7 @@ from primaite.game.agent.data_manipulation_bot import DataManipulationAgent from primaite.game.agent.interface import ProxyAgent, RandomAgent from primaite.game.game import APPLICATION_TYPES_MAPPING, PrimaiteGame, SERVICE_TYPES_MAPPING from primaite.simulator.network.container import Network -from primaite.simulator.network.hardware.nodes.computer import Computer +from primaite.simulator.network.hardware.nodes.host.computer import Computer from primaite.simulator.system.applications.database_client import DatabaseClient from primaite.simulator.system.applications.red_applications.data_manipulation_bot import DataManipulationBot from primaite.simulator.system.applications.red_applications.dos_bot import DoSBot @@ -109,6 +109,7 @@ def test_database_client_install(): database_client: DatabaseClient = client_1.software_manager.software.get("DatabaseClient") assert database_client.server_ip_address == IPv4Address("192.168.1.10") + assert database_client.server_password == "arcd" def test_data_manipulation_bot_install(): @@ -122,6 +123,7 @@ def test_data_manipulation_bot_install(): assert data_manipulation_bot.payload == "DELETE" assert data_manipulation_bot.data_manipulation_p_of_success == 0.8 assert data_manipulation_bot.port_scan_p_of_success == 0.8 + assert data_manipulation_bot.server_password == "arcd" def test_dos_bot_install(): @@ -149,6 +151,16 @@ def test_dns_client_install(): assert dns_client.dns_server == IPv4Address("192.168.1.10") +def test_dns_server_install(): + """Test that the DNS Client service can be configured via config.""" + game = load_config(BASIC_CONFIG) + client_1: Computer = game.simulation.network.get_node_by_hostname("client_1") + + dns_server: DNSServer = client_1.software_manager.software.get("DNSServer") + + assert dns_server.dns_lookup("arcd.com") == IPv4Address("192.168.1.10") + + def test_database_service_install(): """Test that the Database Service can be configured via config.""" game = load_config(BASIC_CONFIG) @@ -186,6 +198,7 @@ def test_ftp_server_install(): ftp_server_service: FTPServer = client_1.software_manager.software.get("FTPServer") assert ftp_server_service is not None + assert ftp_server_service.server_password == "arcd" def test_ntp_client_install(): @@ -195,6 +208,7 @@ def test_ntp_client_install(): ntp_client_service: NTPClient = client_1.software_manager.software.get("NTPClient") assert ntp_client_service is not None + assert ntp_client_service.ntp_server == IPv4Address("192.168.1.10") def test_ntp_server_install(): From cfd64333e26a137722d661679d2b480739c5d911 Mon Sep 17 00:00:00 2001 From: Chris McCarthy Date: Mon, 12 Feb 2024 12:31:08 +0000 Subject: [PATCH 30/39] #2205 - Added wireless router tests and documentation. Refactored some code based on PR suggestions. --- docs/source/simulation.rst | 1 + .../network/nodes/wireless_router.rst | 193 ++++++++++++++++++ .../hardware/nodes/network/firewall.py | 37 ++-- .../network/hardware/nodes/network/router.py | 6 +- .../network/test_wireless_router.py | 134 ++++++++++++ 5 files changed, 350 insertions(+), 21 deletions(-) create mode 100644 docs/source/simulation_components/network/nodes/wireless_router.rst create mode 100644 tests/integration_tests/network/test_wireless_router.py diff --git a/docs/source/simulation.rst b/docs/source/simulation.rst index 56761517..c703b299 100644 --- a/docs/source/simulation.rst +++ b/docs/source/simulation.rst @@ -22,6 +22,7 @@ Contents simulation_components/network/nodes/host_node simulation_components/network/nodes/network_node simulation_components/network/nodes/router + simulation_components/network/nodes/wireless_router simulation_components/network/nodes/firewall simulation_components/network/switch simulation_components/network/network diff --git a/docs/source/simulation_components/network/nodes/wireless_router.rst b/docs/source/simulation_components/network/nodes/wireless_router.rst new file mode 100644 index 00000000..75cbe0f7 --- /dev/null +++ b/docs/source/simulation_components/network/nodes/wireless_router.rst @@ -0,0 +1,193 @@ +.. only:: comment + + © Crown-owned copyright 2023, Defence Science and Technology Laboratory UK + +###### +Router +###### + +The ``WirelessRouter`` class extends the functionality of the standard ``Router`` class within PrimAITE, +integrating wireless networking capabilities. This class enables the simulation of a router that supports both wired +and wireless connections, allowing for a more comprehensive network simulation environment. + +Overview +-------- + +The ``WirelessRouter`` class is designed to simulate the operations of a real-world wireless router, offering both +Ethernet and Wi-Fi connectivity. This includes managing wireless access points, configuring network interfaces for +different frequencies, and handling wireless frames transmission. + +Features +-------- + +- **Dual Interface Support:** Supports both wired (Ethernet) and wireless network interfaces. +- **Wireless Access Point Configuration:** Allows configuring a wireless access point, including setting its IP + address, subnet mask, and operating frequency. +- **Frequency Management:** Utilises the ``AirSpaceFrequency`` enum to set the operating frequency of wireless + interfaces, supporting common Wi-Fi bands like 2.4 GHz and 5 GHz. +- **Seamless Wireless Communication:** Integrates with the ``AirSpace`` class to manage wireless transmissions across + different frequencies, ensuring that wireless communication is realistically simulated. + +Usage +----- + +To use the ``WirelessRouter`` class in a network simulation, instantiate it similarly to a regular router but with +additional steps to configure wireless settings: + +.. code-block:: python + + from primaite.simulator.network.hardware.nodes.network.wireless_router import WirelessRouter + from primaite.simulator.network.airspace import AirSpaceFrequency + + # Instantiate the WirelessRouter + wireless_router = WirelessRouter(hostname="MyWirelessRouter") + + # Configure a wired Ethernet interface + wireless_router.configure_port(port=2, ip_address="192.168.1.1", subnet_mask="255.255.255.0") + + # Configure a wireless access point + wireless_router.configure_wireless_access_point( + port=1, ip_address="192.168.2.1", + subnet_mask="255.255.255.0", + frequency=AirSpaceFrequency.WIFI_2_4 + ) + + + +Integration with AirSpace +------------------------- + +The ``WirelessRouter`` class works closely with the ``AirSpace`` class to simulate the transmission of wireless frames. +Frames sent from wireless interfaces are transmitted across the simulated airspace, allowing for interactions with +other wireless devices within the same frequency band. + +Example Scenario +---------------- + +This example sets up a network with two PCs (PC A and PC B), each connected to their own `WirelessRouter` +(Router 1 and Router 2). These routers are then wirelessly connected to each other, enabling communication between the +PCs through the routers over the airspace. Access Control Lists (ACLs) are configured on the routers to permit ARP and +ICMP traffic, ensuring basic network connectivity and ping functionality. + +.. code-block:: python + + from primaite.simulator.network.airspace import AIR_SPACE, AirSpaceFrequency + from primaite.simulator.network.container import Network + from primaite.simulator.network.hardware.nodes.host.computer import Computer + from primaite.simulator.network.hardware.nodes.network.router import ACLAction + from primaite.simulator.network.hardware.nodes.network.wireless_router import WirelessRouter + from primaite.simulator.network.transmission.network_layer import IPProtocol + from primaite.simulator.network.transmission.transport_layer import Port + + network = Network() + + # Configure PC A + pc_a = Computer( + hostname="pc_a", + ip_address="192.168.0.2", + subnet_mask="255.255.255.0", + default_gateway="192.168.0.1", + start_up_duration=0, + ) + pc_a.power_on() + network.add_node(pc_a) + + # Configure Router 1 + router_1 = WirelessRouter(hostname="router_1", start_up_duration=0) + router_1.power_on() + network.add_node(router_1) + + # Configure the connection between PC A and Router 1 port 2 + router_1.configure_router_interface("192.168.0.1", "255.255.255.0") + network.connect(pc_a.network_interface[1], router_1.router_interface) + + # Configure Router 1 ACLs + router_1.acl.add_rule(action=ACLAction.PERMIT, src_port=Port.ARP, dst_port=Port.ARP, position=22) + router_1.acl.add_rule(action=ACLAction.PERMIT, protocol=IPProtocol.ICMP, position=23) + + # Configure PC B + pc_b = Computer( + hostname="pc_b", + ip_address="192.168.2.2", + subnet_mask="255.255.255.0", + default_gateway="192.168.2.1", + start_up_duration=0, + ) + pc_b.power_on() + network.add_node(pc_b) + + # Configure Router 2 + router_2 = WirelessRouter(hostname="router_2", start_up_duration=0) + router_2.power_on() + network.add_node(router_2) + + # Configure the connection between PC B and Router 2 port 2 + router_2.configure_router_interface("192.168.2.1", "255.255.255.0") + network.connect(pc_b.network_interface[1], router_2.router_interface) + + # Configure the wireless connection between Router 1 and Router 2 + router_1.configure_wireless_access_point( + port=1, + ip_address="192.168.1.1", + subnet_mask="255.255.255.0", + frequency=AirSpaceFrequency.WIFI_2_4 + ) + router_2.configure_wireless_access_point( + port=1, + ip_address="192.168.1.2", + subnet_mask="255.255.255.0", + frequency=AirSpaceFrequency.WIFI_2_4 + ) + + # Configure routes for inter-router communication + router_1.route_table.add_route( + address="192.168.2.0", subnet_mask="255.255.255.0", next_hop_ip_address="192.168.1.2" + ) + + router_2.route_table.add_route( + address="192.168.0.0", subnet_mask="255.255.255.0", next_hop_ip_address="192.168.1.1" + ) + + # Test connectivity + print(pc_a.ping(pc_b.network_interface[1].ip_address)) + print(pc_b.ping(pc_a.network_interface[1].ip_address)) + +This setup demonstrates the `WirelessRouter` class's capability to manage both wired and wireless connections within a +simulated network environment. By configuring the wireless access points and enabling the appropriate ACL rules, the +example facilitates basic network operations such as ARP resolution and ICMP pinging between devices across different +network segments. + +Viewing Wireless Network Configuration +-------------------------------------- + +The `AirSpace.show()` function is an invaluable tool for inspecting the current wireless network configuration within +the PrimAITE environment. It presents a table summarising all wireless interfaces, including routers and access points, +that are active within the airspace. The table outlines each device's connected node name, MAC address, IP address, +subnet mask, operating frequency, and status, providing a comprehensive view of the wireless network topology. + +Example Output +^^^^^^^^^^^^^^^ + +Below is an example output of the `AirSpace.show()` function, demonstrating the visibility it provides into the +wireless network: + +.. code-block:: none + + +----------------+-------------------+-------------+---------------+--------------+---------+ + | Connected Node | MAC Address | IP Address | Subnet Mask | Frequency | Status | + +----------------+-------------------+-------------+---------------+--------------+---------+ + | router_1 | 31:29:46:53:ed:f8 | 192.168.1.1 | 255.255.255.0 | WiFi 2.4 GHz | Enabled | + | router_2 | 34:c8:47:43:98:78 | 192.168.1.2 | 255.255.255.0 | WiFi 2.4 GHz | Enabled | + +----------------+-------------------+-------------+---------------+--------------+---------+ + +This table aids in verifying that wireless devices are correctly configured and operational. It also helps in +diagnosing connectivity issues by ensuring that devices are on the correct frequency and have the appropriate network +settings. The `Status` column, indicating whether a device is enabled or disabled, further assists in troubleshooting +by quickly identifying any devices that are not actively participating in the network. + +Utilising the `AirSpace.show()` function is particularly beneficial in complex network simulations where multiple +wireless devices are in use. It provides a snapshot of the wireless landscape, facilitating the understanding of how +devices interact within the network and ensuring that configurations are aligned with the intended network architecture. + +The addition of the ``WirelessRouter`` class enriches the PrimAITE simulation toolkit by enabling the simulation of +mixed wired and wireless network environments. diff --git a/src/primaite/simulator/network/hardware/nodes/network/firewall.py b/src/primaite/simulator/network/hardware/nodes/network/firewall.py index bccfeab1..22effa2a 100644 --- a/src/primaite/simulator/network/hardware/nodes/network/firewall.py +++ b/src/primaite/simulator/network/hardware/nodes/network/firewall.py @@ -122,6 +122,8 @@ class Firewall(Router): "internal_outbound_acl", "dmz_inbound_acl", "dmz_outbound_acl", + "external_inbound_acl", + "external_outbound_acl", } self._original_state.update(self.model_dump(include=vals_to_include)) @@ -142,6 +144,8 @@ class Firewall(Router): "internal_outbound_acl": self.internal_outbound_acl.describe_state(), "dmz_inbound_acl": self.dmz_inbound_acl.describe_state(), "dmz_outbound_acl": self.dmz_outbound_acl.describe_state(), + "external_inbound_acl": self.external_inbound_acl.describe_state(), + "external_outbound_acl": self.external_outbound_acl.describe_state(), } ) @@ -263,12 +267,11 @@ class Firewall(Router): if not permitted: self.sys_log.info(f"Frame blocked at interface {from_network_interface} by rule {rule}") return - else: - self.software_manager.arp.add_arp_cache_entry( - ip_address=frame.ip.src_ip_address, - mac_address=frame.ethernet.src_mac_addr, - network_interface=from_network_interface, - ) + self.software_manager.arp.add_arp_cache_entry( + ip_address=frame.ip.src_ip_address, + mac_address=frame.ethernet.src_mac_addr, + network_interface=from_network_interface, + ) if self.check_send_frame_to_session_manager(frame): # Port is open on this Router so pass Frame up to session manager first @@ -332,12 +335,11 @@ class Firewall(Router): if not permitted: self.sys_log.info(f"Frame blocked at interface {from_network_interface} by rule {rule}") return - else: - self.software_manager.arp.add_arp_cache_entry( - ip_address=frame.ip.src_ip_address, - mac_address=frame.ethernet.src_mac_addr, - network_interface=from_network_interface, - ) + self.software_manager.arp.add_arp_cache_entry( + ip_address=frame.ip.src_ip_address, + mac_address=frame.ethernet.src_mac_addr, + network_interface=from_network_interface, + ) if self.check_send_frame_to_session_manager(frame): # Port is open on this Router so pass Frame up to session manager first @@ -387,12 +389,11 @@ class Firewall(Router): if not permitted: self.sys_log.info(f"Frame blocked at interface {from_network_interface} by rule {rule}") return - else: - self.software_manager.arp.add_arp_cache_entry( - ip_address=frame.ip.src_ip_address, - mac_address=frame.ethernet.src_mac_addr, - network_interface=from_network_interface, - ) + self.software_manager.arp.add_arp_cache_entry( + ip_address=frame.ip.src_ip_address, + mac_address=frame.ethernet.src_mac_addr, + network_interface=from_network_interface, + ) if self.check_send_frame_to_session_manager(frame): # Port is open on this Router so pass Frame up to session manager first diff --git a/src/primaite/simulator/network/hardware/nodes/network/router.py b/src/primaite/simulator/network/hardware/nodes/network/router.py index 0d5b3d76..bb7b8a83 100644 --- a/src/primaite/simulator/network/hardware/nodes/network/router.py +++ b/src/primaite/simulator/network/hardware/nodes/network/router.py @@ -35,9 +35,9 @@ def ip_matches_masked_range(ip_to_check: IPV4Address, base_ip: IPV4Address, wild by the wildcard mask. If the resulting masked IP addresses are equal, it means the IP address to check falls within the range defined by the base IP and wildcard mask. - :param IPv4Address ip_to_check: The IP address to be checked. - :param IPv4Address base_ip: The base IP address defining the start of the range. - :param IPv4Address wildcard_mask: The wildcard mask specifying which bits to ignore. + :param IPV4Address ip_to_check: The IP address to be checked. + :param IPV4Address base_ip: The base IP address defining the start of the range. + :param IPV4Address wildcard_mask: The wildcard mask specifying which bits to ignore. :return: A boolean value indicating whether the IP address matches the masked range. :rtype: bool diff --git a/tests/integration_tests/network/test_wireless_router.py b/tests/integration_tests/network/test_wireless_router.py new file mode 100644 index 00000000..1b55c1b6 --- /dev/null +++ b/tests/integration_tests/network/test_wireless_router.py @@ -0,0 +1,134 @@ +import pytest + +from primaite.simulator.network.airspace import AIR_SPACE, AirSpaceFrequency +from primaite.simulator.network.container import Network +from primaite.simulator.network.hardware.nodes.host.computer import Computer +from primaite.simulator.network.hardware.nodes.network.router import ACLAction +from primaite.simulator.network.hardware.nodes.network.wireless_router import WirelessRouter +from primaite.simulator.network.transmission.network_layer import IPProtocol +from primaite.simulator.network.transmission.transport_layer import Port + + +@pytest.fixture(scope="function") +def setup_network(): + network = Network() + + # Configure PC A + pc_a = Computer( + hostname="pc_a", + ip_address="192.168.0.2", + subnet_mask="255.255.255.0", + default_gateway="192.168.0.1", + start_up_duration=0, + ) + pc_a.power_on() + network.add_node(pc_a) + + # Configure Router 1 + router_1 = WirelessRouter(hostname="router_1", start_up_duration=0) + router_1.power_on() + network.add_node(router_1) + + # Configure the connection between PC A and Router 1 port 2 + router_1.configure_router_interface("192.168.0.1", "255.255.255.0") + network.connect(pc_a.network_interface[1], router_1.network_interface[2]) + + # Configure Router 1 ACLs + router_1.acl.add_rule(action=ACLAction.PERMIT, src_port=Port.ARP, dst_port=Port.ARP, position=22) + router_1.acl.add_rule(action=ACLAction.PERMIT, protocol=IPProtocol.ICMP, position=23) + + # Configure PC B + pc_b = Computer( + hostname="pc_b", + ip_address="192.168.2.2", + subnet_mask="255.255.255.0", + default_gateway="192.168.2.1", + start_up_duration=0, + ) + pc_b.power_on() + network.add_node(pc_b) + + # Configure Router 2 + router_2 = WirelessRouter(hostname="router_2", start_up_duration=0) + router_2.power_on() + network.add_node(router_2) + + # Configure the connection between PC B and Router 2 port 2 + router_2.configure_router_interface("192.168.2.1", "255.255.255.0") + network.connect(pc_b.network_interface[1], router_2.network_interface[2]) + + # Configure Router 2 ACLs + + # Configure the wireless connection between Router 1 port 1 and Router 2 port 1 + router_1.configure_wireless_access_point("192.168.1.1", "255.255.255.0") + router_2.configure_wireless_access_point("192.168.1.2", "255.255.255.0") + + AIR_SPACE.show() + + router_1.route_table.add_route( + address="192.168.2.0", subnet_mask="255.255.255.0", next_hop_ip_address="192.168.1.2" + ) + + # Configure Route from Router 2 to PC A subnet + router_2.route_table.add_route( + address="192.168.0.2", subnet_mask="255.255.255.0", next_hop_ip_address="192.168.1.1" + ) + + # Configure PC C + pc_c = Computer( + hostname="pc_c", + ip_address="192.168.3.2", + subnet_mask="255.255.255.0", + default_gateway="192.168.3.1", + start_up_duration=0, + ) + pc_c.power_on() + network.add_node(pc_c) + + # Configure Router 3 + router_3 = WirelessRouter(hostname="router_3", start_up_duration=0) + router_3.power_on() + network.add_node(router_3) + + # Configure the connection between PC C and Router 3 port 2 + router_3.configure_router_interface("192.168.3.1", "255.255.255.0") + network.connect(pc_c.network_interface[1], router_3.network_interface[2]) + + # Configure the wireless connection between Router 2 port 1 and Router 3 port 1 + router_3.configure_wireless_access_point("192.168.1.3", "255.255.255.0") + + # Configure Route from Router 1 to PC C subnet + router_1.route_table.add_route( + address="192.168.3.0", subnet_mask="255.255.255.0", next_hop_ip_address="192.168.1.3" + ) + + # Configure Route from Router 2 to PC C subnet + router_2.route_table.add_route( + address="192.168.3.0", subnet_mask="255.255.255.0", next_hop_ip_address="192.168.1.3" + ) + + # Configure Route from Router 3 to PC A and PC B subnets + router_3.route_table.add_route( + address="192.168.0.0", subnet_mask="255.255.255.0", next_hop_ip_address="192.168.1.1" + ) + router_3.route_table.add_route( + address="192.168.2.0", subnet_mask="255.255.255.0", next_hop_ip_address="192.168.1.2" + ) + + return pc_a, pc_b, pc_c, router_1, router_2, router_3 + + +def test_ping_default_gateways(setup_network): + pc_a, pc_b, pc_c, router_1, router_2, router_3 = setup_network + # Check if each PC can ping its default gateway + assert pc_a.ping(pc_a.default_gateway), "PC A should ping its default gateway successfully." + assert pc_b.ping(pc_b.default_gateway), "PC B should ping its default gateway successfully." + assert pc_c.ping(pc_c.default_gateway), "PC C should ping its default gateway successfully." + + +def test_cross_router_connectivity_pre_frequency_change(setup_network): + pc_a, pc_b, pc_c, router_1, router_2, router_3 = setup_network + # Ensure that PCs can ping across routers before any frequency change + assert pc_a.ping(pc_b.network_interface[1].ip_address), "PC A should ping PC B across routers successfully." + assert pc_a.ping(pc_c.network_interface[1].ip_address), "PC A should ping PC C across routers successfully." + assert pc_b.ping(pc_c.network_interface[1].ip_address), "PC B should ping PC C across routers successfully." From add09a0280057a877d2eaff43f4839626ae124c5 Mon Sep 17 00:00:00 2001 From: Chris McCarthy Date: Mon, 12 Feb 2024 14:08:55 +0000 Subject: [PATCH 31/39] #2205 - Tidied up interface creation and applied some suggestions from PR --- .../simulator/network/hardware/nodes/network/router.py | 8 ++++---- .../network/hardware/nodes/network/wireless_router.py | 10 ++-------- 2 files changed, 6 insertions(+), 12 deletions(-) diff --git a/src/primaite/simulator/network/hardware/nodes/network/router.py b/src/primaite/simulator/network/hardware/nodes/network/router.py index bb7b8a83..774aae7c 100644 --- a/src/primaite/simulator/network/hardware/nodes/network/router.py +++ b/src/primaite/simulator/network/hardware/nodes/network/router.py @@ -103,11 +103,11 @@ class ACLRule(SimComponent): The default action is `DENY`. :ivar Optional[IPProtocol] protocol: The network protocol (e.g., TCP, UDP, ICMP) to match. If `None`, the rule applies to all protocols. - :ivar Optional[IPv4Address] src_ip_address: The source IP address to match. If combined with `src_wildcard_mask`, + :ivar Optional[IPV4Address] src_ip_address: The source IP address to match. If combined with `src_wildcard_mask`, it specifies the start of an IP range. - :ivar Optional[IPv4Address] src_wildcard_mask: The wildcard mask for the source IP address, defining the range + :ivar Optional[IPV4Address] src_wildcard_mask: The wildcard mask for the source IP address, defining the range of addresses to match. - :ivar Optional[IPv4Address] dst_ip_address: The destination IP address to match. If combined with + :ivar Optional[IPV4Address] dst_ip_address: The destination IP address to match. If combined with `dst_wildcard_mask`, it specifies the start of an IP range. :ivar Optional[IPv4Address] dst_wildcard_mask: The wildcard mask for the destination IP address, defining the range of addresses to match. @@ -1225,7 +1225,7 @@ class Router(NetworkNode): """ Determines whether a given network frame should be forwarded to the session manager. - his function evaluates whether the destination IP address of the frame corresponds to one of the router's + This function evaluates whether the destination IP address of the frame corresponds to one of the router's interface IP addresses. If so, it then checks if the frame is an ICMP packet or if the destination port matches any of the ports that the router's software manager identifies as open. If either condition is met, the frame is considered for further processing by the session manager, implying potential application-level handling or diff --git a/src/primaite/simulator/network/hardware/nodes/network/wireless_router.py b/src/primaite/simulator/network/hardware/nodes/network/wireless_router.py index 3a797031..dd0b58d3 100644 --- a/src/primaite/simulator/network/hardware/nodes/network/wireless_router.py +++ b/src/primaite/simulator/network/hardware/nodes/network/wireless_router.py @@ -118,15 +118,9 @@ class WirelessRouter(Router): def __init__(self, hostname: str, **kwargs): super().__init__(hostname=hostname, num_ports=0, **kwargs) - wap = WirelessAccessPoint(ip_address="127.0.0.1", subnet_mask="255.0.0.0", gateway="0.0.0.0") - wap.port_num = 1 - self.connect_nic(wap) - self.network_interface[1] = wap + self.connect_nic(WirelessAccessPoint(ip_address="127.0.0.1", subnet_mask="255.0.0.0", gateway="0.0.0.0")) - router_interface = RouterInterface(ip_address="127.0.0.1", subnet_mask="255.0.0.0", gateway="0.0.0.0") - router_interface.port_num = 2 - self.connect_nic(router_interface) - self.network_interface[2] = router_interface + self.connect_nic(RouterInterface(ip_address="127.0.0.1", subnet_mask="255.0.0.0", gateway="0.0.0.0")) self.set_original_state() From fa08e53b150d83bd58aa21e56c515b52d87b5501 Mon Sep 17 00:00:00 2001 From: Nick Todd Date: Mon, 12 Feb 2024 17:01:53 +0000 Subject: [PATCH 32/39] 2297: Convert NTP Client and Server to UDP --- src/primaite/simulator/system/services/ntp/ntp_client.py | 2 +- src/primaite/simulator/system/services/ntp/ntp_server.py | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/src/primaite/simulator/system/services/ntp/ntp_client.py b/src/primaite/simulator/system/services/ntp/ntp_client.py index ddd794ae..43d1d783 100644 --- a/src/primaite/simulator/system/services/ntp/ntp_client.py +++ b/src/primaite/simulator/system/services/ntp/ntp_client.py @@ -21,7 +21,7 @@ class NTPClient(Service): def __init__(self, **kwargs): kwargs["name"] = "NTPClient" kwargs["port"] = Port.NTP - kwargs["protocol"] = IPProtocol.TCP + kwargs["protocol"] = IPProtocol.UDP super().__init__(**kwargs) self.start() diff --git a/src/primaite/simulator/system/services/ntp/ntp_server.py b/src/primaite/simulator/system/services/ntp/ntp_server.py index 3987fa2c..3ae80936 100644 --- a/src/primaite/simulator/system/services/ntp/ntp_server.py +++ b/src/primaite/simulator/system/services/ntp/ntp_server.py @@ -16,7 +16,7 @@ class NTPServer(Service): def __init__(self, **kwargs): kwargs["name"] = "NTPServer" kwargs["port"] = Port.NTP - kwargs["protocol"] = IPProtocol.TCP + kwargs["protocol"] = IPProtocol.UDP super().__init__(**kwargs) self.start() From 697e53def8881620e67a2564df8da713c8ed8784 Mon Sep 17 00:00:00 2001 From: Nick Todd Date: Mon, 12 Feb 2024 17:12:59 +0000 Subject: [PATCH 33/39] 2297: Doc update. --- docs/source/simulation_components/system/ntp_client_server.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/source/simulation_components/system/ntp_client_server.rst b/docs/source/simulation_components/system/ntp_client_server.rst index 671126fb..2d49f34e 100644 --- a/docs/source/simulation_components/system/ntp_client_server.rst +++ b/docs/source/simulation_components/system/ntp_client_server.rst @@ -44,7 +44,7 @@ Usage ^^^^^ - Install on a Node via the ``SoftwareManager`` to start the database service. -- Service runs on TCP port 123 by default. +- Service runs on UDP port 123 by default. Implementation ^^^^^^^^^^^^^^ From 4c66d2b2524fbe7cf4cef51302dab3f5cd168d30 Mon Sep 17 00:00:00 2001 From: Nick Todd Date: Mon, 12 Feb 2024 17:24:28 +0000 Subject: [PATCH 34/39] 2297: Change missed reference TCP to UDP. --- docs/source/simulation_components/system/ntp_client_server.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/source/simulation_components/system/ntp_client_server.rst b/docs/source/simulation_components/system/ntp_client_server.rst index 2d49f34e..b6d57c13 100644 --- a/docs/source/simulation_components/system/ntp_client_server.rst +++ b/docs/source/simulation_components/system/ntp_client_server.rst @@ -22,7 +22,7 @@ Key capabilities Usage ^^^^^ - Install on a Node via the ``SoftwareManager`` to start the database service. -- Service runs on TCP port 123 by default. +- Service runs on UDP port 123 by default. Implementation ^^^^^^^^^^^^^^ From 426c0a668279840e99f83db148348bc91469922d Mon Sep 17 00:00:00 2001 From: Chris McCarthy Date: Tue, 13 Feb 2024 10:18:06 +0000 Subject: [PATCH 35/39] 2205 - Slimmed down the capability of the wireless router for now --- .../network/test_wireless_router.py | 57 ++----------------- 1 file changed, 5 insertions(+), 52 deletions(-) diff --git a/tests/integration_tests/network/test_wireless_router.py b/tests/integration_tests/network/test_wireless_router.py index 1b55c1b6..0e458974 100644 --- a/tests/integration_tests/network/test_wireless_router.py +++ b/tests/integration_tests/network/test_wireless_router.py @@ -74,61 +74,14 @@ def setup_network(): address="192.168.0.2", subnet_mask="255.255.255.0", next_hop_ip_address="192.168.1.1" ) - # Configure PC C - pc_c = Computer( - hostname="pc_c", - ip_address="192.168.3.2", - subnet_mask="255.255.255.0", - default_gateway="192.168.3.1", - start_up_duration=0, - ) - pc_c.power_on() - network.add_node(pc_c) - - # Configure Router 3 - router_3 = WirelessRouter(hostname="router_3", start_up_duration=0) - router_3.power_on() - network.add_node(router_3) - - # Configure the connection between PC C and Router 3 port 2 - router_3.configure_router_interface("192.168.3.1", "255.255.255.0") - network.connect(pc_c.network_interface[1], router_3.network_interface[2]) - - # Configure the wireless connection between Router 2 port 1 and Router 3 port 1 - router_3.configure_wireless_access_point("192.168.1.3", "255.255.255.0") - - # Configure Route from Router 1 to PC C subnet - router_1.route_table.add_route( - address="192.168.3.0", subnet_mask="255.255.255.0", next_hop_ip_address="192.168.1.3" - ) - - # Configure Route from Router 2 to PC C subnet - router_2.route_table.add_route( - address="192.168.3.0", subnet_mask="255.255.255.0", next_hop_ip_address="192.168.1.3" - ) - - # Configure Route from Router 3 to PC A and PC B subnets - router_3.route_table.add_route( - address="192.168.0.0", subnet_mask="255.255.255.0", next_hop_ip_address="192.168.1.1" - ) - router_3.route_table.add_route( - address="192.168.2.0", subnet_mask="255.255.255.0", next_hop_ip_address="192.168.1.2" - ) - - return pc_a, pc_b, pc_c, router_1, router_2, router_3 + return pc_a, pc_b, router_1, router_2 -def test_ping_default_gateways(setup_network): - pc_a, pc_b, pc_c, router_1, router_2, router_3 = setup_network - # Check if each PC can ping its default gateway +def test_cross_router_connectivity(setup_network): + pc_a, pc_b, router_1, router_2 = setup_network + # Ensure that PCs can ping across routers before any frequency change assert pc_a.ping(pc_a.default_gateway), "PC A should ping its default gateway successfully." assert pc_b.ping(pc_b.default_gateway), "PC B should ping its default gateway successfully." - assert pc_c.ping(pc_c.default_gateway), "PC C should ping its default gateway successfully." - -def test_cross_router_connectivity_pre_frequency_change(setup_network): - pc_a, pc_b, pc_c, router_1, router_2, router_3 = setup_network - # Ensure that PCs can ping across routers before any frequency change assert pc_a.ping(pc_b.network_interface[1].ip_address), "PC A should ping PC B across routers successfully." - assert pc_a.ping(pc_c.network_interface[1].ip_address), "PC A should ping PC C across routers successfully." - assert pc_b.ping(pc_c.network_interface[1].ip_address), "PC B should ping PC C across routers successfully." + assert pc_b.ping(pc_a.network_interface[1].ip_address), "PC B should ping PC A across routers successfully." From 7b64d99a636768846e49fe467306e189989785dd Mon Sep 17 00:00:00 2001 From: Chris McCarthy Date: Tue, 13 Feb 2024 12:56:41 +0000 Subject: [PATCH 36/39] #2205 - Final suggestions from PR --- src/primaite/simulator/network/airspace.py | 1 - tests/integration_tests/network/test_firewall.py | 2 +- 2 files changed, 1 insertion(+), 2 deletions(-) diff --git a/src/primaite/simulator/network/airspace.py b/src/primaite/simulator/network/airspace.py index 56cd1cc7..724b8728 100644 --- a/src/primaite/simulator/network/airspace.py +++ b/src/primaite/simulator/network/airspace.py @@ -292,7 +292,6 @@ class IPWirelessNetworkInterface(WirelessNetworkInterface, Layer3Interface, ABC) """ super().enable() try: - pass self._connected_node.default_gateway_hello() except AttributeError: pass diff --git a/tests/integration_tests/network/test_firewall.py b/tests/integration_tests/network/test_firewall.py index 349ccd85..846699f0 100644 --- a/tests/integration_tests/network/test_firewall.py +++ b/tests/integration_tests/network/test_firewall.py @@ -18,7 +18,7 @@ def dmz_external_internal_network() -> Network: Fixture for setting up a simulated network with a firewall, external node, internal node, and DMZ node. This configuration is designed to test firewall rules and their impact on traffic between these network segments. - -------------- -------------- -------------- + -------------- -------------- -------------- | external |---------| firewall |---------| internal | -------------- -------------- -------------- | From 07a934ab668b85d4ae87a9d0db52ff7080969d1e Mon Sep 17 00:00:00 2001 From: Nick Todd Date: Wed, 14 Feb 2024 12:00:08 +0000 Subject: [PATCH 37/39] 2306: Update tests to verify INSERT query. --- tests/integration_tests/system/test_database_on_node.py | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/tests/integration_tests/system/test_database_on_node.py b/tests/integration_tests/system/test_database_on_node.py index e015f9ee..ac0e65b4 100644 --- a/tests/integration_tests/system/test_database_on_node.py +++ b/tests/integration_tests/system/test_database_on_node.py @@ -101,6 +101,7 @@ def test_database_client_query(uc2_network): db_client.connect() assert db_client.query("SELECT") + assert db_client.query("INSERT") def test_create_database_backup(uc2_network): @@ -150,7 +151,7 @@ def test_database_client_cannot_query_offline_database_server(uc2_network): assert len(db_client.connections) assert db_client.query("SELECT") is True - + assert db_client.query("INSERT") is True db_server.power_off() for i in range(db_server.shut_down_duration + 1): @@ -160,3 +161,4 @@ def test_database_client_cannot_query_offline_database_server(uc2_network): assert db_service.operating_state is ServiceOperatingState.STOPPED assert db_client.query("SELECT") is False + assert db_client.query("INSERT") is False From 4a38672fea29b56b5f3bc72794072746bf79a5bc Mon Sep 17 00:00:00 2001 From: Nick Todd Date: Wed, 14 Feb 2024 13:18:20 +0000 Subject: [PATCH 38/39] 2306: Handle INSERT query --- .../services/database/database_service.py | 23 +++++++++++++++++-- 1 file changed, 21 insertions(+), 2 deletions(-) diff --git a/src/primaite/simulator/system/services/database/database_service.py b/src/primaite/simulator/system/services/database/database_service.py index d75b4424..0b9554d5 100644 --- a/src/primaite/simulator/system/services/database/database_service.py +++ b/src/primaite/simulator/system/services/database/database_service.py @@ -189,7 +189,7 @@ class DatabaseService(Service): } def _process_sql( - self, query: Literal["SELECT", "DELETE"], query_id: str, connection_id: Optional[str] = None + self, query: Literal["SELECT", "DELETE", "INSERT"], query_id: str, connection_id: Optional[str] = None ) -> Dict[str, Union[int, List[Any]]]: """ Executes the given SQL query and returns the result. @@ -197,6 +197,7 @@ class DatabaseService(Service): Possible queries: - SELECT : returns the data - DELETE : deletes the data + - INSERT : inserts the data :param query: The SQL query to be executed. :return: Dictionary containing status code and data fetched. @@ -220,9 +221,27 @@ class DatabaseService(Service): return {"status_code": 404, "data": False} elif query == "DELETE": self.db_file.health_status = FileSystemItemHealthStatus.COMPROMISED - return {"status_code": 200, "type": "sql", "data": False, "uuid": query_id, "connection_id": connection_id} + return { + "status_code": 200, + "type": "sql", + "data": False, + "uuid": query_id, + "connection_id": connection_id, + } + elif query == "INSERT": + if self.health_state_actual == SoftwareHealthState.GOOD: + return { + "status_code": 200, + "type": "sql", + "data": False, + "uuid": query_id, + "connection_id": connection_id, + } + else: + return {"status_code": 404, "data": False} else: # Invalid query + self.sys_log.info(f"{self.name}: Invalid {query}") return {"status_code": 500, "data": False} def describe_state(self) -> Dict: From 8520f22e22de75768970a1b4dcadee0b5d389d2f Mon Sep 17 00:00:00 2001 From: Nick Todd Date: Wed, 14 Feb 2024 13:35:08 +0000 Subject: [PATCH 39/39] 2306: Updated documentation --- CHANGELOG.md | 1 + .../simulation_components/system/database_client_server.rst | 2 +- 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index cc52a197..ce366d26 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -26,6 +26,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0 - Fixed a bug where the red agent acted to early - Fixed the order of service health state - Fixed an issue where starting a node didn't start the services on it +- Added support for SQL INSERT command. diff --git a/docs/source/simulation_components/system/database_client_server.rst b/docs/source/simulation_components/system/database_client_server.rst index 0b0dcc8e..07912f3e 100644 --- a/docs/source/simulation_components/system/database_client_server.rst +++ b/docs/source/simulation_components/system/database_client_server.rst @@ -17,7 +17,7 @@ Key capabilities - Creates a database file in the ``Node`` 's ``FileSystem`` upon creation. - Handles connecting clients by maintaining a dictionary of connections mapped to session IDs. - Authenticates connections using a configurable password. -- Simulates ``SELECT`` and ``DELETE`` SQL queries. +- Simulates ``SELECT``, ``DELETE`` and ``INSERT`` SQL queries. - Returns query results and status codes back to clients. - Leverages the Service base class for install/uninstall, status tracking, etc.