89 lines
2.1 KiB
Python
89 lines
2.1 KiB
Python
#!/usr/bin/env python
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# SPDX-License-Identifier: ISC
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# Copyright (c) 2023 by
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# Donatas Abraitis <donatas@opensourcerouting.org>
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#
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"""
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Test if OSPFv3 loopback interfaces get a cost of 0.
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https://www.rfc-editor.org/rfc/rfc5340.html#page-37:
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If the interface type is point-to-multipoint or the interface is
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in the state Loopback, the global scope IPv6 addresses associated
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with the interface (if any) are copied into the intra-area-prefix-LSA
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with the PrefixOptions LA-bit set, the PrefixLength set to 128, and
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the metric set to 0.
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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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pytestmark = pytest.mark.ospf6d
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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 _, (rname, router) in enumerate(router_list.items(), 1):
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router.load_frr_config(os.path.join(CWD, "{}/frr.conf".format(rname)))
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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_ospf6_loopback_cost():
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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 _show_ipv6_route():
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output = json.loads(r1.vtysh_cmd("show ipv6 route json"))
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expected = {
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"2001:db8::1/128": [
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{
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"metric": 0,
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"distance": 110,
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}
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],
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"2001:db8::2/128": [
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{
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"metric": 10,
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"distance": 110,
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}
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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(
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_show_ipv6_route,
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)
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_, result = topotest.run_and_expect(test_func, None, count=60, wait=1)
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assert result is None, "Loopback cost isn't 0"
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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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