projects / mirror_frr.git / blame
| Commit | Line | Data |
|---|---|---|
| 9a84cb61 | 1 | #!/usr/bin/env python |
| acddc0ed | 2 | # SPDX-License-Identifier: ISC |
| 9a84cb61 DA |
3 | |
| 4 | # | |
| 5 | # Copyright (c) 2022 by | |
| 6 | # Donatas Abraitis <donatas@opensourcerouting.org> | |
| 7 | # | |
| 9a84cb61 DA |
8 | |
| 9 | """ | |
| 10 | Check if we can override VPN underlay next-hop from PE1 to PE2. | |
| 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 | tgen.add_router("cpe1") | |
| 32 | tgen.add_router("cpe2") | |
| 33 | tgen.add_router("pe1") | |
| 34 | tgen.add_router("pe2") | |
| 35 | ||
| 36 | switch = tgen.add_switch("s1") | |
| 37 | switch.add_link(tgen.gears["cpe1"]) | |
| 38 | switch.add_link(tgen.gears["pe1"]) | |
| 39 | ||
| 40 | switch = tgen.add_switch("s2") | |
| 41 | switch.add_link(tgen.gears["pe1"]) | |
| 42 | switch.add_link(tgen.gears["pe2"]) | |
| 43 | ||
| 44 | switch = tgen.add_switch("s3") | |
| 45 | switch.add_link(tgen.gears["pe2"]) | |
| 46 | switch.add_link(tgen.gears["cpe2"]) | |
| 47 | ||
| 48 | ||
| 49 | def setup_module(mod): | |
| 50 | tgen = Topogen(build_topo, mod.__name__) | |
| 51 | tgen.start_topology() | |
| 52 | ||
| 53 | pe1 = tgen.gears["pe1"] | |
| 54 | pe2 = tgen.gears["pe2"] | |
| 55 | ||
| 56 | pe1.run("ip link add RED type vrf table 1001") | |
| 57 | pe1.run("ip link set up dev RED") | |
| 58 | pe2.run("ip link add RED type vrf table 1001") | |
| 59 | pe2.run("ip link set up dev RED") | |
| 60 | pe1.run("ip link set pe1-eth0 master RED") | |
| 61 | pe2.run("ip link set pe2-eth1 master RED") | |
| 62 | ||
| 63 | pe1.run("sysctl -w net.ipv4.ip_forward=1") | |
| 64 | pe2.run("sysctl -w net.ipv4.ip_forward=1") | |
| 65 | pe1.run("sysctl -w net.mpls.conf.pe1-eth0.input=1") | |
| 66 | pe2.run("sysctl -w net.mpls.conf.pe2-eth1.input=1") | |
| 67 | ||
| 68 | router_list = tgen.routers() | |
| 69 | ||
| 70 | for i, (rname, router) in enumerate(router_list.items(), 1): | |
| 71 | router.load_config( | |
| 72 | TopoRouter.RD_ZEBRA, os.path.join(CWD, "{}/zebra.conf".format(rname)) | |
| 73 | ) | |
| 74 | router.load_config( | |
| 75 | TopoRouter.RD_BGP, os.path.join(CWD, "{}/bgpd.conf".format(rname)) | |
| 76 | ) | |
| 77 | router.load_config( | |
| 78 | TopoRouter.RD_OSPF6, os.path.join(CWD, "{}/ospf6d.conf".format(rname)) | |
| 79 | ) | |
| 80 | router.load_config( | |
| 81 | TopoRouter.RD_LDP, os.path.join(CWD, "{}/ldpd.conf".format(rname)) | |
| 82 | ) | |
| 83 | ||
| 84 | tgen.start_router() | |
| 85 | ||
| 86 | ||
| 87 | def teardown_module(mod): | |
| 88 | tgen = get_topogen() | |
| 89 | tgen.stop_topology() | |
| 90 | ||
| 91 | ||
| 92 | def test_bgp_vpn_5549(): | |
| 93 | tgen = get_topogen() | |
| 94 | ||
| 95 | pe2 = tgen.gears["pe2"] | |
| 96 | ||
| 97 | if tgen.routers_have_failure(): | |
| 98 | pytest.skip(tgen.errors) | |
| 99 | ||
| 100 | def _bgp_vpn_nexthop_changed(): | |
| 101 | output = json.loads(pe2.vtysh_cmd("show bgp ipv4 vpn json")) | |
| 102 | expected = { | |
| 103 | "routes": { | |
| 104 | "routeDistinguishers": { | |
| 105 | "192.168.1.2:2": { | |
| 106 | "172.16.255.1/32": [ | |
| 107 | {"valid": True, "nexthops": [{"ip": "2001:db8::1"}]} | |
| 108 | ], | |
| 109 | "192.168.1.0/24": [ | |
| 110 | {"valid": True, "nexthops": [{"ip": "2001:db8:1::1"}]} | |
| 111 | ], | |
| 112 | } | |
| 113 | } | |
| 114 | } | |
| 115 | } | |
| 116 | return topotest.json_cmp(output, expected) | |
| 117 | ||
| 118 | test_func = functools.partial(_bgp_vpn_nexthop_changed) | |
| 119 | _, result = topotest.run_and_expect(test_func, None, count=60, wait=0.5) | |
| 120 | assert result is None, "Failed overriding IPv6 next-hop for VPN underlay" | |
| 121 | ||
| 122 | ||
| 123 | if __name__ == "__main__": | |
| 124 | args = ["-s"] + sys.argv[1:] | |
| 125 | sys.exit(pytest.main(args)) |