100 lines
2.7 KiB
Python
100 lines
2.7 KiB
Python
#!/usr/bin/env python
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# SPDX-License-Identifier: ISC
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#
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# Copyright (c) 2021 by
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# Donatas Abraitis <donatas.abraitis@gmail.com>
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#
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"""
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Test if BGP UPDATE with AS-PATH attribute with value zero (0)
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is threated as withdrawal.
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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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import pytest
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import functools
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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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from lib import topotest
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from lib.topogen import Topogen, TopoRouter, get_topogen
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pytestmark = [pytest.mark.bgpd]
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def build_topo(tgen):
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r1 = tgen.add_router("r1")
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peer1 = tgen.add_exabgp_peer("peer1", ip="10.0.0.2", defaultRoute="via 10.0.0.1")
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switch = tgen.add_switch("s1")
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switch.add_link(r1)
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switch.add_link(peer1)
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def setup_module(mod):
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tgen = Topogen(build_topo, mod.__name__)
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tgen.start_topology()
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router = tgen.gears["r1"]
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router.load_config(TopoRouter.RD_ZEBRA, os.path.join(CWD, "r1/zebra.conf"))
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router.load_config(TopoRouter.RD_BGP, os.path.join(CWD, "r1/bgpd.conf"))
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router.start()
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peer = tgen.gears["peer1"]
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peer.start(os.path.join(CWD, "peer1"), os.path.join(CWD, "exabgp.env"))
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def teardown_module(mod):
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tgen = get_topogen()
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tgen.stop_topology()
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def test_bgp_aggregator_zero():
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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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def _bgp_converge():
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output = json.loads(
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tgen.gears["r1"].vtysh_cmd("show ip bgp neighbor 10.0.0.2 json")
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)
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expected = {
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"10.0.0.2": {
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"bgpState": "Established",
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"addressFamilyInfo": {"ipv4Unicast": {"acceptedPrefixCounter": 1}},
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}
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}
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return topotest.json_cmp(output, expected)
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test_func = functools.partial(_bgp_converge)
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success, result = topotest.run_and_expect(test_func, None, count=60, wait=0.5)
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assert result is None, "More than one prefix seen at r1, SHOULD be only one."
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def _bgp_has_correct_routes_without_asn_0():
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output = json.loads(tgen.gears["r1"].vtysh_cmd("show ip bgp json"))
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expected = {"routes": {"192.168.100.101/32": [{"valid": True}]}}
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return topotest.json_cmp(output, expected)
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test_func = functools.partial(_bgp_has_correct_routes_without_asn_0)
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success, result = topotest.run_and_expect(test_func, None, count=60, wait=0.5)
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assert result is None, "Failed listing 192.168.100.101/32, SHOULD be accepted."
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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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