tests/topotests/bgp_route_map_vpn_import/test_bgp_route_map_vpn_import.py

   1 #!/usr/bin/env python
   2 # SPDX-License-Identifier: ISC
   3
   4 #
   5 # Copyright (c) 2022 by
   6 # Donatas Abraitis <donatas@opensourcerouting.org>
   7 #
   8
   9 """
  10 Test if `route-map vpn import NAME` works by setting/matching via route-maps.
  11 Routes from VRF Customer to VRF Service MUST be leaked and modified later
  12 with `route-map vpn import`.
  13 """
  14
  15 import os
  16 import sys
  17 import json
  18 import pytest
  19 import functools
  20
  21 CWD = os.path.dirname(os.path.realpath(__file__))
  22 sys.path.append(os.path.join(CWD, "../"))
  23
  24 # pylint: disable=C0413
  25 from lib import topotest
  26 from lib.topogen import Topogen, TopoRouter, get_topogen
  27 from lib.common_config import step
  28
  29 pytestmark = [pytest.mark.bgpd]
  30
  31
  32 def build_topo(tgen):
  33     tgen.add_router("r1")
  34
  35     switch = tgen.add_switch("s1")
  36     switch.add_link(tgen.gears["r1"])
  37
  38     switch = tgen.add_switch("s2")
  39     switch.add_link(tgen.gears["r1"])
  40
  41     switch = tgen.add_switch("s3")
  42     switch.add_link(tgen.gears["r1"])
  43
  44     switch = tgen.add_switch("s4")
  45     switch.add_link(tgen.gears["r1"])
  46
  47
  48 def setup_module(mod):
  49     tgen = Topogen(build_topo, mod.__name__)
  50     tgen.start_topology()
  51
  52     r1 = tgen.gears["r1"]
  53
  54     r1.run("ip link add Customer type vrf table 1001")
  55     r1.run("ip link set up dev Customer")
  56     r1.run("ip link set r1-eth0 master Customer")
  57     r1.run("ip link add Service type vrf table 1002")
  58     r1.run("ip link set up dev Service")
  59     r1.run("ip link set r1-eth1 master Service")
  60     r1.run("ip link set r1-eth3 master Customer")
  61
  62     router_list = tgen.routers()
  63
  64     for i, (rname, router) in enumerate(router_list.items(), 1):
  65         router.load_config(
  66             TopoRouter.RD_ZEBRA, os.path.join(CWD, "{}/zebra.conf".format(rname))
  67         )
  68         router.load_config(
  69             TopoRouter.RD_BGP, os.path.join(CWD, "{}/bgpd.conf".format(rname))
  70         )
  71
  72     tgen.start_router()
  73
  74
  75 def teardown_module(mod):
  76     tgen = get_topogen()
  77     tgen.stop_topology()
  78
  79
  80 def test_bgp_route_map_vpn_import():
  81     tgen = get_topogen()
  82
  83     if tgen.routers_have_failure():
  84         pytest.skip(tgen.errors)
  85
  86     r1 = tgen.gears["r1"]
  87
  88     def _bgp_check_received_leaked_with_vpn_import():
  89         output = json.loads(r1.vtysh_cmd("show bgp vrf Service ipv4 unicast json"))
  90         expected = {
  91             "routes": {
  92                 "192.0.2.0/24": [
  93                     {
  94                         "locPrf": 123,
  95                     },
  96                 ],
  97                 "192.168.1.0/24": [
  98                     {
  99                         "locPrf": None,
 100                     }
 101                 ],
 102             }
 103         }
 104         return topotest.json_cmp(output, expected)
 105
 106     test_func = functools.partial(_bgp_check_received_leaked_with_vpn_import)
 107     _, result = topotest.run_and_expect(test_func, None, count=60, wait=1)
 108     assert result is None, "Failed, imported routes are not modified"
 109
 110
 111 if __name__ == "__main__":
 112     args = ["-s"] + sys.argv[1:]
 113     sys.exit(pytest.main(args))