#1800 - Fixed the ping functionality so that it actually checks for replies and returns True if the right number of replies have been received.

- Added the foundations of a Router class along with ACLRule and RouteTableEntry classes.

src/primaite/simulator/network/hardware/nodes/router.py

@@ -0,0 +1,86 @@
+from enum import Enum
+from ipaddress import IPv4Address
+from typing import Dict, List, Union
+
+from primaite.simulator.core import SimComponent
+from primaite.simulator.network.hardware.base import Node, NIC
+from prettytable import PrettyTable
+
+from primaite.simulator.network.transmission.network_layer import IPProtocol
+from primaite.simulator.network.transmission.transport_layer import Port
+
+
+class ACLAction(Enum):
+    DENY = 0
+    PERMIT = 1
+
+
+class ACLRule(SimComponent):
+    action: ACLAction
+    protocol: IPProtocol
+    src_ip: IPv4Address
+    src_wildcard: IPv4Address = IPv4Address("0.0.0.0")
+    src_port: Port
+    dst_ip: IPv4Address
+    dst_port: Port
+
+
+class RouteTableEntry(SimComponent):
+    pass
+
+
+class Router(Node):
+    num_ports: int
+    ethernet_ports: Dict[int, NIC] = {}
+    acl: List = []
+    route_table: Dict = {}
+
+    def __init__(self, hostname: str, num_ports: int = 5, **kwargs):
+        super().__init__(hostname=hostname, num_ports=num_ports, **kwargs)
+
+        for i in range(1, self.num_ports + 1):
+            nic = NIC(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
+
+    def describe_state(self) -> Dict:
+        pass
+
+    def configure_port(
+            self,
+            port: int,
+            ip_address: Union[IPv4Address, str],
+            subnet_mask: str
+    ):
+        if not isinstance(ip_address, IPv4Address):
+            ip_address = IPv4Address(ip_address)
+        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=} {subnet_mask=}")
+
+    def enable_port(self, port: int):
+        nic = self.ethernet_ports.get(port)
+        if nic:
+            nic.enable()
+
+    def disable_port(self, port: int):
+        nic = self.ethernet_ports.get(port)
+        if nic:
+            nic.disable()
+
+    def show(self):
+        """Prints a table of the NICs on the Node."""
+        table = PrettyTable(["Port", "MAC Address", "Address", "Speed", "Status"])
+
+        for port, nic in self.ethernet_ports.items():
+            table.add_row(
+                [
+                    port,
+                    nic.mac_address,
+                    f"{nic.ip_address}/{nic.ip_network.prefixlen}",
+                    nic.speed,
+                    "Enabled" if nic.enabled else "Disabled",
+                ]
+            )
+        print(table)