tests/topotests/bgp_route_map_vpn_import/test_bgp_route_map_vpn_import.py

   1 #!/usr/bin/env python
   2
   3 #
   4 # Copyright (c) 2022 by
   5 # Donatas Abraitis <donatas@opensourcerouting.org>
   6 #
   7 # Permission to use, copy, modify, and/or distribute this software
   8 # for any purpose with or without fee is hereby granted, provided
   9 # that the above copyright notice and this permission notice appear
  10 # in all copies.
  11 #
  12 # THE SOFTWARE IS PROVIDED "AS IS" AND NETDEF DISCLAIMS ALL WARRANTIES
  13 # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  14 # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NETDEF BE LIABLE FOR
  15 # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY
  16 # DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
  17 # WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
  18 # ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
  19 # OF THIS SOFTWARE.
  20 #
  21
  22 """
  23 Test if `route-map vpn import NAME` works by setting/matching via route-maps.
  24 Routes from VRF Customer to VRF Service MUST be leaked and modified later
  25 with `route-map vpn import`.
  26 """
  27
  28 import os
  29 import sys
  30 import json
  31 import pytest
  32 import functools
  33
  34 CWD = os.path.dirname(os.path.realpath(__file__))
  35 sys.path.append(os.path.join(CWD, "../"))
  36
  37 # pylint: disable=C0413
  38 from lib import topotest
  39 from lib.topogen import Topogen, TopoRouter, get_topogen
  40 from lib.common_config import step
  41
  42 pytestmark = [pytest.mark.bgpd]
  43
  44
  45 def build_topo(tgen):
  46     tgen.add_router("r1")
  47
  48     switch = tgen.add_switch("s1")
  49     switch.add_link(tgen.gears["r1"])
  50
  51     switch = tgen.add_switch("s2")
  52     switch.add_link(tgen.gears["r1"])
  53
  54     switch = tgen.add_switch("s3")
  55     switch.add_link(tgen.gears["r1"])
  56
  57     switch = tgen.add_switch("s4")
  58     switch.add_link(tgen.gears["r1"])
  59
  60
  61 def setup_module(mod):
  62     tgen = Topogen(build_topo, mod.__name__)
  63     tgen.start_topology()
  64
  65     r1 = tgen.gears["r1"]
  66
  67     r1.run("ip link add Customer type vrf table 1001")
  68     r1.run("ip link set up dev Customer")
  69     r1.run("ip link set r1-eth0 master Customer")
  70     r1.run("ip link add Service type vrf table 1002")
  71     r1.run("ip link set up dev Service")
  72     r1.run("ip link set r1-eth1 master Service")
  73     r1.run("ip link set r1-eth3 master Customer")
  74
  75     router_list = tgen.routers()
  76
  77     for i, (rname, router) in enumerate(router_list.items(), 1):
  78         router.load_config(
  79             TopoRouter.RD_ZEBRA, os.path.join(CWD, "{}/zebra.conf".format(rname))
  80         )
  81         router.load_config(
  82             TopoRouter.RD_BGP, os.path.join(CWD, "{}/bgpd.conf".format(rname))
  83         )
  84
  85     tgen.start_router()
  86
  87
  88 def teardown_module(mod):
  89     tgen = get_topogen()
  90     tgen.stop_topology()
  91
  92
  93 def test_bgp_route_map_vpn_import():
  94     tgen = get_topogen()
  95
  96     if tgen.routers_have_failure():
  97         pytest.skip(tgen.errors)
  98
  99     r1 = tgen.gears["r1"]
 100
 101     def _bgp_check_received_leaked_with_vpn_import():
 102         output = json.loads(r1.vtysh_cmd("show bgp vrf Service ipv4 unicast json"))
 103         expected = {
 104             "routes": {
 105                 "192.0.2.0/24": [
 106                     {
 107                         "locPrf": 123,
 108                     },
 109                 ],
 110                 "192.168.1.0/24": [
 111                     {
 112                         "locPrf": None,
 113                     }
 114                 ],
 115             }
 116         }
 117         return topotest.json_cmp(output, expected)
 118
 119     test_func = functools.partial(_bgp_check_received_leaked_with_vpn_import)
 120     _, result = topotest.run_and_expect(test_func, None, count=60, wait=1)
 121     assert result is None, "Failed, imported routes are not modified"
 122
 123
 124 if __name__ == "__main__":
 125     args = ["-s"] + sys.argv[1:]
 126     sys.exit(pytest.main(args))