#!/usr/bin/env python # SPDX-License-Identifier: ISC # # test_msdp_topo1.py # Part of NetDEF Topology Tests # # Copyright (c) 2024 by # Adriano Marto Reis # """ test_msdp_topo2.py: Test the FRR PIM MSDP peer. ────────────────────► shortest path ┌──┐ ┌───────┤r2├───────┐ sender │ s1 └──┘ s2 │ receiver ┌──┐ ┌─┴┐ ┌─┴┐ ┌──┐ │h1├────┤r1│ │r5├────┤h2│ └──┘ s6 └─┬┘ └─┬┘ s7 └──┘ │ ┌──┐ ┌──┐ │ └───┤r3├────┤r4├───┘ s3 └──┘ s4 └──┘ s5 """ import os import sys import json from functools import partial import pytest # Save the Current Working Directory to find configuration files. CWD = os.path.dirname(os.path.realpath(__file__)) sys.path.append(os.path.join(CWD, "../")) # pylint: disable=C0413 # Import topogen and topotest helpers from lib import topotest # Required to instantiate the topology builder class. from lib.topogen import Topogen, TopoRouter, get_topogen from lib.topolog import logger from lib.pim import McastTesterHelper pytestmark = [pytest.mark.bgpd, pytest.mark.pimd] app_helper = McastTesterHelper() MCAST_ADDR = "229.1.2.3" def build_topo(tgen): "Build function" for routern in range(1, 6): tgen.add_router("r{}".format(routern)) switch = tgen.add_switch("s1") switch.add_link(tgen.gears["r1"]) switch.add_link(tgen.gears["r2"]) switch = tgen.add_switch("s2") switch.add_link(tgen.gears["r2"]) switch.add_link(tgen.gears["r5"]) switch = tgen.add_switch("s3") switch.add_link(tgen.gears["r1"]) switch.add_link(tgen.gears["r3"]) switch = tgen.add_switch("s4") switch.add_link(tgen.gears["r3"]) switch.add_link(tgen.gears["r4"]) switch = tgen.add_switch("s5") switch.add_link(tgen.gears["r4"]) switch.add_link(tgen.gears["r5"]) switch = tgen.add_switch("s6") tgen.add_host("h1", "192.168.6.100/24", "via 192.168.6.1") switch.add_link(tgen.gears["h1"]) switch.add_link(tgen.gears["r1"]) switch = tgen.add_switch("s7") tgen.add_host("h2", "192.168.7.100/24", "via 192.168.7.5") switch.add_link(tgen.gears["h2"]) switch.add_link(tgen.gears["r5"]) def setup_module(mod): "Sets up the pytest environment" tgen = Topogen(build_topo, mod.__name__) tgen.start_topology() router_list = tgen.routers() for rname, router in router_list.items(): daemon_file = "{}/{}/zebra.conf".format(CWD, rname) if os.path.isfile(daemon_file): router.load_config(TopoRouter.RD_ZEBRA, daemon_file) daemon_file = "{}/{}/bgpd.conf".format(CWD, rname) if os.path.isfile(daemon_file): router.load_config(TopoRouter.RD_BGP, daemon_file) daemon_file = "{}/{}/pimd.conf".format(CWD, rname) if os.path.isfile(daemon_file): router.load_config(TopoRouter.RD_PIM, daemon_file) tgen.start_router() app_helper.init(tgen) def teardown_module(): "Teardown the pytest environment" tgen = get_topogen() app_helper.cleanup() tgen.stop_topology() def test_bgp_convergence(): """ Wait for BGP protocol convergence All the loopback addresses (10.254.254.x) must be reachable from all routers. """ tgen = get_topogen() if tgen.routers_have_failure(): pytest.skip(tgen.errors) routes = { "r1": "10.254.254.1/32", "r2": "10.254.254.2/32", "r3": "10.254.254.3/32", "r4": "10.254.254.4/32", "r5": "10.254.254.5/32", } for router1 in routes.keys(): for router2, route in routes.items(): if router1 != router2: logger.info("waiting route {} in {}".format(route, router1)) test_func = partial( topotest.router_json_cmp, tgen.gears[router1], "show ip route json", {route: [{"protocol": "bgp"}]}, ) _, result = topotest.run_and_expect(test_func, None, count=130, wait=1) assertmsg = '"{}" convergence failure'.format(router1) assert result is None, assertmsg def test_msdp_peers(): """ Waits for the MSPD peer connections to be established. """ tgen = get_topogen() if tgen.routers_have_failure(): pytest.skip(tgen.errors) expected_msdp_peers = { "r1": { "192.168.1.2": { "peer": "192.168.1.2", "local": "192.168.1.1", "state": "established", }, "192.168.3.3": { "peer": "192.168.3.3", "local": "192.168.3.1", "state": "established", }, }, "r2": { "192.168.1.1": { "peer": "192.168.1.1", "local": "192.168.1.2", "state": "established", }, "192.168.2.5": { "peer": "192.168.2.5", "local": "192.168.2.2", "state": "established", }, }, "r3": { "192.168.3.1": { "peer": "192.168.3.1", "local": "192.168.3.3", "state": "established", }, "192.168.4.4": { "peer": "192.168.4.4", "local": "192.168.4.3", "state": "established", }, }, "r4": { "192.168.4.3": { "peer": "192.168.4.3", "local": "192.168.4.4", "state": "established", }, "192.168.5.5": { "peer": "192.168.5.5", "local": "192.168.5.4", "state": "established", }, }, "r5": { "192.168.2.2": { "peer": "192.168.2.2", "local": "192.168.2.5", "state": "established", }, "192.168.5.4": { "peer": "192.168.5.4", "local": "192.168.5.5", "state": "established", }, }, } for router, peers in expected_msdp_peers.items(): logger.info("Waiting for {} msdp peer data".format(router)) test_function = partial( topotest.router_json_cmp, tgen.gears[router], "show ip msdp peer json", peers, ) _, val = topotest.run_and_expect(test_function, None, count=30, wait=1) assert val is None, "multicast route convergence failure" def test_msdp_sa(): """ Waits for the MSDP SA to be propagated. The MSDP SA must be present on all routers. The MSDP SA must indicate the original RP. """ tgen = get_topogen() if tgen.routers_have_failure(): pytest.skip(tgen.errors) app_helper.run("h1", ["--send=0.7", MCAST_ADDR, "h1-eth0"]) app_helper.run("h2", [MCAST_ADDR, "h2-eth0"]) expected_sa_r1 = { MCAST_ADDR: { "192.168.6.100": { "source": "192.168.6.100", "group": MCAST_ADDR, "rp": "-", "local": "yes", } } } expected_sa_r2_r3_r4_r5 = { MCAST_ADDR: { "192.168.6.100": { "source": "192.168.6.100", "group": MCAST_ADDR, "rp": "10.254.254.1", "local": "no", } } } expected_sa = { "r1": expected_sa_r1, "r2": expected_sa_r2_r3_r4_r5, "r3": expected_sa_r2_r3_r4_r5, "r4": expected_sa_r2_r3_r4_r5, "r5": expected_sa_r2_r3_r4_r5, } for router, sa in expected_sa.items(): logger.info("Waiting for {} msdp peer data".format(router)) test_function = partial( topotest.router_json_cmp, tgen.gears[router], "show ip msdp sa json", sa, ) _, val = topotest.run_and_expect(test_function, None, count=30, wait=1) assert val is None, "multicast route convergence failure" def test_mroute(): """ Wait for the multicast routes. The multicast routes must connect the shortest path between h1 and h2: h1 ─► r1 ─► r2 ─► r5 ─► h2 The routers r3 and r4 must have no multicast routes, as they are not included in the shortest path between h1 and h2. """ tgen = get_topogen() if tgen.routers_have_failure(): pytest.skip(tgen.errors) app_helper.run("h1", ["--send=0.7", MCAST_ADDR, "h1-eth0"]) app_helper.run("h2", [MCAST_ADDR, "h2-eth0"]) expected_mroutes = { "r1": { MCAST_ADDR: { "192.168.6.100": { "iif": "r1-eth2", "oil": { "r1-eth0": {"source": "192.168.6.100", "group": MCAST_ADDR}, "r1-eth1": None, }, }, }, }, "r2": { MCAST_ADDR: { "192.168.6.100": { "iif": "r2-eth0", "oil": { "r2-eth1": {"source": "192.168.6.100", "group": MCAST_ADDR}, }, }, }, }, "r3": { }, "r4": { }, "r5": { MCAST_ADDR: { "192.168.6.100": { "iif": "r5-eth0", "oil": { "r5-eth1": None, "r5-eth2": {"source": "192.168.6.100", "group": MCAST_ADDR}, }, }, }, }, } for router, mroute in expected_mroutes.items(): logger.info("Waiting for {} mroute data".format(router)) test_function = partial( topotest.router_json_cmp, tgen.gears[router], "show ip mroute json", mroute, ) _, val = topotest.run_and_expect(test_function, None, count=30, wait=1) assert val is None, "mroute convergence failure" def test_memory_leak(): "Run the memory leak test and report results." tgen = get_topogen() if not tgen.is_memleak_enabled(): pytest.skip("Memory leak test/report is disabled") tgen.report_memory_leaks() if __name__ == "__main__": args = ["-s"] + sys.argv[1:] sys.exit(pytest.main(args))