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#2139 - Implemented routing

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This commit is contained in:
Chris McCarthy
2023-12-22 10:31:11 +00:00
parent ffeb04d6ed
commit ade5f133d0
6 changed files with 381 additions and 42 deletions
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93
tests/integration_tests/network/test_routing.py
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@@ -1,8 +1,11 @@
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.transmission.network_layer import IPProtocol
from primaite.simulator.network.transmission.transport_layer import Port
@@ -34,6 +37,69 @@ def pc_a_pc_b_router_1() -> Tuple[Node, Node, Router]:
return pc_a, pc_b, router_1
@pytest.fixture(scope="function")
def multi_hop_network() -> 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 = Router(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_port(2, "192.168.0.1", "255.255.255.0")
network.connect(pc_a.ethernet_port[1], router_1.ethernet_ports[2])
router_1.enable_port(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 = Router(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_port(2, "192.168.2.1", "255.255.255.0")
network.connect(pc_b.ethernet_port[1], router_2.ethernet_ports[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])
router_1.enable_port(1)
router_2.enable_port(1)
return network
def test_ping_default_gateway(pc_a_pc_b_router_1):
pc_a, pc_b, router_1 = pc_a_pc_b_router_1
@@ -50,3 +116,30 @@ 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")
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)
def test_with_routes_can_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")
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
# Configure Route from Router 1 to PC B subnet
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"
)
assert pc_a.ping(pc_b.ethernet_port[1].ip_address)