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