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1b484abc | 1 | #!/usr/bin/env python |
acddc0ed | 2 | # SPDX-License-Identifier: ISC |
1b484abc DA |
3 | |
4 | # | |
5 | # Copyright (c) 2022 by | |
6 | # Donatas Abraitis <donatas@opensourcerouting.org> | |
7 | # | |
1b484abc DA |
8 | |
9 | """ | |
10 | Check if BGP community-list works as OR if multiple community entries specified, | |
11 | like: | |
12 | ||
13 | bgp community-list 1 seq 5 permit 65001:1 65002:2 | |
14 | bgp community-list 1 seq 10 permit 65001:3 | |
15 | ! | |
16 | route-map test deny 10 | |
17 | match community 1 | |
18 | route-map test permit 20 | |
19 | ||
20 | Here, we should deny routes in/out if the path has: | |
21 | (65001:1 AND 65001:2) OR 65001:3. | |
22 | """ | |
23 | ||
24 | import os | |
25 | import sys | |
26 | import json | |
27 | import pytest | |
28 | import functools | |
29 | ||
30 | CWD = os.path.dirname(os.path.realpath(__file__)) | |
31 | sys.path.append(os.path.join(CWD, "../")) | |
32 | ||
33 | # pylint: disable=C0413 | |
34 | from lib import topotest | |
35 | from lib.topogen import Topogen, TopoRouter, get_topogen | |
36 | from lib.common_config import step | |
37 | ||
38 | pytestmark = [pytest.mark.bgpd] | |
39 | ||
40 | ||
41 | def build_topo(tgen): | |
42 | for routern in range(1, 3): | |
43 | tgen.add_router("r{}".format(routern)) | |
44 | ||
45 | switch = tgen.add_switch("s1") | |
46 | switch.add_link(tgen.gears["r1"]) | |
47 | switch.add_link(tgen.gears["r2"]) | |
48 | ||
49 | ||
50 | def setup_module(mod): | |
51 | tgen = Topogen(build_topo, mod.__name__) | |
52 | tgen.start_topology() | |
53 | ||
54 | router_list = tgen.routers() | |
55 | ||
56 | for i, (rname, router) in enumerate(router_list.items(), 1): | |
57 | router.load_config( | |
58 | TopoRouter.RD_ZEBRA, os.path.join(CWD, "{}/zebra.conf".format(rname)) | |
59 | ) | |
60 | router.load_config( | |
61 | TopoRouter.RD_BGP, os.path.join(CWD, "{}/bgpd.conf".format(rname)) | |
62 | ) | |
63 | ||
64 | tgen.start_router() | |
65 | ||
66 | ||
67 | def teardown_module(mod): | |
68 | tgen = get_topogen() | |
69 | tgen.stop_topology() | |
70 | ||
71 | ||
72 | def test_bgp_comm_list_match(): | |
73 | tgen = get_topogen() | |
74 | ||
75 | if tgen.routers_have_failure(): | |
76 | pytest.skip(tgen.errors) | |
77 | ||
78 | router = tgen.gears["r2"] | |
79 | ||
80 | def _bgp_converge(): | |
81 | output = json.loads( | |
82 | router.vtysh_cmd( | |
83 | "show bgp ipv4 unicast neighbors 192.168.0.1 filtered-routes json" | |
84 | ) | |
85 | ) | |
86 | expected = { | |
87 | "receivedRoutes": { | |
88 | "172.16.255.1/32": { | |
89 | "path": "65001", | |
90 | }, | |
91 | "172.16.255.3/32": { | |
92 | "path": "65001", | |
93 | }, | |
94 | } | |
95 | } | |
96 | return topotest.json_cmp(output, expected) | |
97 | ||
98 | step("Initial BGP converge") | |
99 | test_func = functools.partial(_bgp_converge) | |
100 | _, result = topotest.run_and_expect(test_func, None, count=60, wait=0.5) | |
101 | assert result is None, "Failed to filter BGP UPDATES with community-list on R2" | |
102 | ||
103 | ||
104 | if __name__ == "__main__": | |
105 | args = ["-s"] + sys.argv[1:] | |
106 | sys.exit(pytest.main(args)) |