97 lines
2.5 KiB
Python
97 lines
2.5 KiB
Python
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#!/usr/bin/env python
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# SPDX-License-Identifier: ISC
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# Copyright (c) 2022 by
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# Donatas Abraitis <donatas@opensourcerouting.org>
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#
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"""
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Test if Software Version capability works if forced with a knob.
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Reference: https://datatracker.ietf.org/doc/html/draft-abraitis-bgp-version-capability
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"""
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import os
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import re
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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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pytestmark = [pytest.mark.bgpd]
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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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def setup_module(mod):
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topodef = {"s1": ("r1", "r2")}
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tgen = Topogen(topodef, mod.__name__)
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tgen.start_topology()
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router_list = tgen.routers()
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for i, (rname, router) in enumerate(router_list.items(), 1):
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router.load_config(
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TopoRouter.RD_ZEBRA, os.path.join(CWD, "{}/zebra.conf".format(rname))
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)
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router.load_config(
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TopoRouter.RD_BGP, os.path.join(CWD, "{}/bgpd.conf".format(rname))
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)
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tgen.start_router()
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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_software_version():
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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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r1 = tgen.gears["r1"]
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def _bgp_converge():
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output = json.loads(r1.vtysh_cmd("show bgp summary json"))
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expected = {"ipv4Unicast": {"peers": {"192.168.1.2": {"state": "Established"}}}}
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return topotest.json_cmp(output, expected)
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test_func = functools.partial(
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_bgp_converge,
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)
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_, result = topotest.run_and_expect(test_func, None, count=60, wait=0.5)
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assert result is None, "Can't converge"
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def _bgp_check_software_version():
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output = json.loads(r1.vtysh_cmd("show bgp neighbor 192.168.1.2 json"))
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try:
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versions = output["192.168.1.2"]["neighborCapabilities"]["softwareVersion"]
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adv = versions["advertisedSoftwareVersion"]
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rcv = versions["receivedSoftwareVersion"]
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if not adv and not rcv:
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return False
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pattern = "^FRRouting/\\d.+"
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if re.search(pattern, adv) and re.search(pattern, rcv):
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return True
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except:
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return False
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return False
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assert _bgp_check_software_version(), "Neighbor's software version is n/a"
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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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