230 lines
6.8 KiB
Python
230 lines
6.8 KiB
Python
#!/usr/bin/env python
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# SPDX-License-Identifier: ISC
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#
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# test_msdp_mesh_topo1.py
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# Part of NetDEF Topology Tests
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#
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# Copyright (C) 2021 by
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# Network Device Education Foundation, Inc. ("NetDEF")
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#
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"""
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test_msdp_mesh_topo1.py: Test the FRR PIM MSDP mesh groups.
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"""
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import os
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import sys
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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.ospfd, pytest.mark.pimd]
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app_helper = McastTesterHelper()
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def build_topo(tgen):
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"Build function"
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# Create 3 routers
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for routern in range(1, 4):
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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["r3"])
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# Create stub networks for multicast traffic.
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tgen.add_host("h1", "192.168.10.2/24", "via 192.168.10.1")
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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["h1"])
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tgen.add_host("h2", "192.168.30.2/24", "via 192.168.30.1")
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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["h2"])
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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 = "{}/{}/ospfd.conf".format(CWD, rname)
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if os.path.isfile(daemon_file):
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router.load_config(TopoRouter.RD_OSPF, 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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# Initialize all routers.
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tgen.start_router()
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app_helper.init(tgen)
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def test_wait_ospf_convergence():
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"Wait for OSPF to converge"
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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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logger.info("waiting for protocols to converge")
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def expect_loopback_route(router, iptype, route, proto):
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"Wait until route is present on RIB for protocol."
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logger.info("waiting route {} in {}".format(route, router))
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test_func = partial(
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topotest.router_json_cmp,
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tgen.gears[router],
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"show {} route json".format(iptype),
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{route: [{"protocol": proto}]},
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)
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_, result = topotest.run_and_expect(test_func, None, count=40, wait=1)
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assertmsg = '"{}" OSPF convergence failure'.format(router)
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assert result is None, assertmsg
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# Wait for R1 <-> R2 convergence.
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expect_loopback_route("r1", "ip", "10.254.254.2/32", "ospf")
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# Wait for R1 <-> R3 convergence.
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expect_loopback_route("r1", "ip", "10.254.254.3/32", "ospf")
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# Wait for R2 <-> R1 convergence.
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expect_loopback_route("r2", "ip", "10.254.254.1/32", "ospf")
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# Wait for R2 <-> R3 convergence.
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expect_loopback_route("r2", "ip", "10.254.254.3/32", "ospf")
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# Wait for R3 <-> R1 convergence.
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expect_loopback_route("r3", "ip", "10.254.254.1/32", "ospf")
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# Wait for R3 <-> R2 convergence.
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expect_loopback_route("r3", "ip", "10.254.254.2/32", "ospf")
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def test_wait_msdp_convergence():
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"Wait for MSDP to converge"
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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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logger.info("test MSDP convergence")
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def expect_msdp_peer(router, peer, sa_count=0):
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"Expect MSDP peer connection to be established with SA amount."
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logger.info(
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"waiting MSDP connection from peer {} on router {}".format(peer, router)
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)
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test_func = 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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{peer: {"state": "established", "saCount": sa_count}},
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)
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_, result = topotest.run_and_expect(test_func, None, count=40, wait=2)
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assertmsg = '"{}" MSDP connection failure'.format(router)
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assert result is None, assertmsg
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mcastaddr = "229.0.1.10"
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logger.info("Starting helper1")
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app_helper.run("h1", ["--send=0.7", mcastaddr, "h1-eth0"])
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logger.info("Starting helper2")
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app_helper.run("h2", [mcastaddr, "h2-eth0"])
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# R1 peers.
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expect_msdp_peer("r1", "10.254.254.2")
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expect_msdp_peer("r1", "10.254.254.3")
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# R2 peers.
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expect_msdp_peer("r2", "10.254.254.1", 1)
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expect_msdp_peer("r2", "10.254.254.3")
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# R3 peers.
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expect_msdp_peer("r3", "10.254.254.1", 1)
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expect_msdp_peer("r3", "10.254.254.2")
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def test_msdp_sa_configuration():
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"Expect the multicast traffic SA to be created"
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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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logger.info("test MSDP SA")
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def expect_msdp_sa(router, source, group, local, rp, spt_setup):
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"Expect MSDP SA."
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logger.info("waiting MSDP SA on router {}".format(router))
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test_func = 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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{group: {source: {"local": local, "rp": rp, "sptSetup": spt_setup}}},
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)
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_, result = topotest.run_and_expect(test_func, None, count=30, wait=1)
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assertmsg = '"{}" MSDP SA failure'.format(router)
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assert result is None, assertmsg
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source = "192.168.10.2"
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group = "229.0.1.10"
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rp = "10.254.254.1"
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# R1 SA.
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expect_msdp_sa("r1", source, group, "yes", "-", "-")
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# R2 SA.
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expect_msdp_sa("r2", source, group, "no", rp, "no")
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# R3 peers.
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expect_msdp_sa("r3", source, group, "no", rp, "yes")
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def teardown_module(_mod):
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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_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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