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#!/usr/bin/env python
# SPDX-License-Identifier: ISC
# Copyright (c) 2024 by
# Donatas Abraitis <donatas@opensourcerouting.org>
#
import os
import sys
import json
import pytest
import functools
CWD = os.path.dirname(os.path.realpath(__file__))
sys.path.append(os.path.join(CWD, "../"))
# pylint: disable=C0413
from lib import topotest
from lib.topogen import Topogen, get_topogen
from lib.common_config import kill_router_daemons
pytestmark = [pytest.mark.bgpd]
def setup_module(mod):
topodef = {"s1": ("r1", "r2"), "s2": ("r1", "r2"), "s3": ("r2", "r3")}
tgen = Topogen(topodef, mod.__name__)
tgen.start_topology()
router_list = tgen.routers()
for _, (rname, router) in enumerate(router_list.items(), 1):
router.load_frr_config(os.path.join(CWD, "{}/frr.conf".format(rname)))
tgen.start_router()
def teardown_module(mod):
tgen = get_topogen()
tgen.stop_topology()
def test_bgp_addpath_llgr():
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
r2 = tgen.gears["r2"]
r3 = tgen.gears["r3"]
def _bgp_converge():
output = json.loads(r2.vtysh_cmd("show bgp ipv4 unicast summary json"))
expected = {
"peers": {
"192.168.1.1": {
"hostname": "r1",
"remoteAs": 65001,
"localAs": 65002,
"pfxRcd": 1,
"state": "Established",
},
"192.168.2.1": {
"hostname": "r1",
"remoteAs": 65001,
"localAs": 65002,
"pfxRcd": 1,
"state": "Established",
},
"192.168.3.3": {
"hostname": "r3",
"remoteAs": 65003,
"localAs": 65002,
"pfxSnt": 2,
"state": "Established",
},
}
}
return topotest.json_cmp(output, expected)
test_func = functools.partial(
_bgp_converge,
)
_, result = topotest.run_and_expect(test_func, None, count=30, wait=1)
assert result is None, "Initial peering failed"
kill_router_daemons(tgen, "r2", ["bgpd"])
def _bgp_check_stale_llgr_routes():
output = json.loads(r3.vtysh_cmd("show bgp ipv4 unicast 10.0.0.1/32 json"))
expected = {
"paths": [
{
"stale": True,
"valid": True,
"community": {"string": "llgr-stale", "list": ["llgrStale"]},
},
{
"stale": True,
"valid": True,
"community": {"string": "llgr-stale", "list": ["llgrStale"]},
},
]
}
return topotest.json_cmp(output, expected)
test_func = functools.partial(
_bgp_check_stale_llgr_routes,
)
_, result = topotest.run_and_expect(test_func, None, count=30, wait=1)
assert result is None, "Can't see stale LLGR routes"
def _bgp_check_stale_routes_cleared():
output = json.loads(r3.vtysh_cmd("show bgp ipv4 unicast json"))
expected = {
"routes": {
"10.0.0.1/32": None,
}
}
return topotest.json_cmp(output, expected)
test_func = functools.partial(
_bgp_check_stale_routes_cleared,
)
_, result = topotest.run_and_expect(test_func, None, count=30, wait=1)
assert result is None, "Can't see stale routes"
if __name__ == "__main__":
args = ["-s"] + sys.argv[1:]
sys.exit(pytest.main(args))
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