projects / mirror_frr.git / blame
| Commit | Line | Data |
|---|---|---|
| f3bc47b7 | 1 | #!/usr/bin/env python |
| acddc0ed | 2 | # SPDX-License-Identifier: ISC |
| f3bc47b7 DA |
3 | |
| 4 | # | |
| 5 | # Copyright (c) 2022 by | |
| 6 | # Donatas Abraitis <donatas@opensourcerouting.org> | |
| 7 | # | |
| f3bc47b7 DA |
8 | |
| 9 | """ | |
| 10 | ||
| 11 | """ | |
| 12 | ||
| 13 | import os | |
| 14 | import sys | |
| 15 | import json | |
| 16 | import pytest | |
| 17 | import functools | |
| 18 | ||
| 19 | CWD = os.path.dirname(os.path.realpath(__file__)) | |
| 20 | sys.path.append(os.path.join(CWD, "../")) | |
| 21 | ||
| 22 | # pylint: disable=C0413 | |
| 23 | from lib import topotest | |
| 24 | from lib.topogen import Topogen, TopoRouter, get_topogen | |
| 25 | from lib.common_config import step | |
| 26 | ||
| 27 | pytestmark = [pytest.mark.bgpd] | |
| 28 | ||
| 29 | ||
| 30 | def build_topo(tgen): | |
| 31 | for routern in range(1, 4): | |
| 32 | tgen.add_router("r{}".format(routern)) | |
| 33 | ||
| 34 | switch = tgen.add_switch("s1") | |
| 35 | switch.add_link(tgen.gears["r1"]) | |
| 36 | switch.add_link(tgen.gears["r2"]) | |
| 37 | ||
| 38 | switch = tgen.add_switch("s2") | |
| 39 | switch.add_link(tgen.gears["r1"]) | |
| 40 | switch.add_link(tgen.gears["r3"]) | |
| 41 | ||
| 42 | ||
| 43 | def setup_module(mod): | |
| 44 | tgen = Topogen(build_topo, mod.__name__) | |
| 45 | tgen.start_topology() | |
| 46 | ||
| 47 | router_list = tgen.routers() | |
| 48 | ||
| 49 | for i, (rname, router) in enumerate(router_list.items(), 1): | |
| 50 | router.load_config( | |
| 51 | TopoRouter.RD_ZEBRA, os.path.join(CWD, "{}/zebra.conf".format(rname)) | |
| 52 | ) | |
| 53 | router.load_config( | |
| 54 | TopoRouter.RD_BGP, os.path.join(CWD, "{}/bgpd.conf".format(rname)) | |
| 55 | ) | |
| 56 | ||
| 57 | tgen.start_router() | |
| 58 | ||
| 59 | ||
| 60 | def teardown_module(mod): | |
| 61 | tgen = get_topogen() | |
| 62 | tgen.stop_topology() | |
| 63 | ||
| 64 | ||
| 65 | def test_bgp_local_as_same_remote_as(): | |
| 66 | tgen = get_topogen() | |
| 67 | ||
| 68 | if tgen.routers_have_failure(): | |
| 69 | pytest.skip(tgen.errors) | |
| 70 | ||
| 71 | def _bgp_check_local_as_same_remote_as(): | |
| 72 | output = json.loads( | |
| 73 | tgen.gears["r2"].vtysh_cmd("show bgp ipv4 unicast 172.16.255.1/32 json") | |
| 74 | ) | |
| 75 | expected = { | |
| 76 | "paths": [ | |
| 77 | { | |
| 78 | "valid": True, | |
| 79 | "aspath": {"string": "Local"}, | |
| 80 | "nexthops": [{"ip": "192.168.1.1", "hostname": "r1"}], | |
| 81 | } | |
| 82 | ] | |
| 83 | } | |
| 84 | return topotest.json_cmp(output, expected) | |
| 85 | ||
| 86 | step("Check if iBGP works when local-as == remote-as") | |
| 87 | test_func = functools.partial(_bgp_check_local_as_same_remote_as) | |
| 88 | _, result = topotest.run_and_expect(test_func, None, count=60, wait=0.5) | |
| 89 | assert result is None, "Failed to see BGP prefixes on R2" | |
| 90 | ||
| 91 | ||
| 92 | def test_bgp_peer_group_local_as_same_remote_as(): | |
| 93 | tgen = get_topogen() | |
| 94 | ||
| 95 | if tgen.routers_have_failure(): | |
| 96 | pytest.skip(tgen.errors) | |
| 97 | ||
| 98 | def _bgp_check_local_as_same_remote_as(): | |
| 99 | output = json.loads( | |
| 100 | tgen.gears["r3"].vtysh_cmd("show bgp ipv4 unicast 172.16.255.1/32 json") | |
| 101 | ) | |
| 102 | expected = { | |
| 103 | "paths": [ | |
| 104 | { | |
| 105 | "valid": True, | |
| 106 | "aspath": {"string": "Local"}, | |
| 107 | "nexthops": [{"ip": "192.168.2.1", "hostname": "r1"}], | |
| 108 | } | |
| 109 | ] | |
| 110 | } | |
| 111 | return topotest.json_cmp(output, expected) | |
| 112 | ||
| 113 | step("Initial BGP converge") | |
| 114 | test_func = functools.partial(_bgp_check_local_as_same_remote_as) | |
| 115 | _, result = topotest.run_and_expect(test_func, None, count=60, wait=0.5) | |
| 116 | assert result is None, "Failed to see BGP prefixes on R3" | |
| 117 | ||
| 118 | ||
| 119 | if __name__ == "__main__": | |
| 120 | args = ["-s"] + sys.argv[1:] | |
| 121 | sys.exit(pytest.main(args)) |