tests/topotests/bgp_default_route_route_map_match2/test_bgp_default-originate_route-map_match2.py

   1 #!/usr/bin/env python
   2
   3 # Copyright (c) 2021 by
   4 # Donatas Abraitis <donatas.abraitis@gmail.com>
   5 #
   6 # Permission to use, copy, modify, and/or distribute this software
   7 # for any purpose with or without fee is hereby granted, provided
   8 # that the above copyright notice and this permission notice appear
   9 # in all copies.
  10 #
  11 # THE SOFTWARE IS PROVIDED "AS IS" AND NETDEF DISCLAIMS ALL WARRANTIES
  12 # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  13 # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NETDEF BE LIABLE FOR
  14 # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY
  15 # DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
  16 # WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
  17 # ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
  18 # OF THIS SOFTWARE.
  19 #
  20
  21 """
  22 Test if default-originate works with conditional match.
  23 If 10.0.0.0/22 is recived from r2, then we announce 0.0.0.0/0
  24 to r2.
  25 """
  26
  27 import os
  28 import sys
  29 import json
  30 import pytest
  31 import functools
  32
  33 CWD = os.path.dirname(os.path.realpath(__file__))
  34 sys.path.append(os.path.join(CWD, "../"))
  35
  36 # pylint: disable=C0413
  37 from lib import topotest
  38 from lib.topogen import Topogen, TopoRouter, get_topogen
  39 from lib.common_config import step
  40
  41 pytestmark = [pytest.mark.bgpd]
  42
  43
  44 def build_topo(tgen):
  45     for routern in range(1, 3):
  46         tgen.add_router("r{}".format(routern))
  47
  48     switch = tgen.add_switch("s1")
  49     switch.add_link(tgen.gears["r1"])
  50     switch.add_link(tgen.gears["r2"])
  51
  52
  53 def setup_module(mod):
  54     tgen = Topogen(build_topo, mod.__name__)
  55     tgen.start_topology()
  56
  57     router_list = tgen.routers()
  58
  59     for i, (rname, router) in enumerate(router_list.items(), 1):
  60         router.load_config(
  61             TopoRouter.RD_ZEBRA, os.path.join(CWD, "{}/zebra.conf".format(rname))
  62         )
  63         router.load_config(
  64             TopoRouter.RD_BGP, os.path.join(CWD, "{}/bgpd.conf".format(rname))
  65         )
  66
  67     tgen.start_router()
  68
  69
  70 def teardown_module(mod):
  71     tgen = get_topogen()
  72     tgen.stop_topology()
  73
  74
  75 def test_bgp_default_originate_route_map():
  76     tgen = get_topogen()
  77
  78     if tgen.routers_have_failure():
  79         pytest.skip(tgen.errors)
  80
  81     router = tgen.gears["r2"]
  82
  83     def _bgp_converge(router):
  84         output = json.loads(router.vtysh_cmd("show ip bgp neighbor 192.168.255.1 json"))
  85         expected = {
  86             "192.168.255.1": {
  87                 "bgpState": "Established",
  88                 "addressFamilyInfo": {"ipv4Unicast": {"acceptedPrefixCounter": 1}},
  89             }
  90         }
  91         return topotest.json_cmp(output, expected)
  92
  93     def _bgp_default_route_is_valid(router):
  94         output = json.loads(router.vtysh_cmd("show ip bgp 0.0.0.0/0 json"))
  95         expected = {"paths": [{"valid": True}]}
  96         return topotest.json_cmp(output, expected)
  97
  98     step("Converge network")
  99     test_func = functools.partial(_bgp_converge, router)
 100     success, result = topotest.run_and_expect(test_func, None, count=30, wait=0.5)
 101     assert result is None, "Failed to see bgp convergence at r2"
 102
 103     step("Withdraw 10.0.0.0/22 from R2")
 104     router.vtysh_cmd(
 105         "conf t\nrouter bgp\naddress-family ipv4\nno redistribute connected"
 106     )
 107
 108     step("Check if we don't have 0.0.0.0/0 at R2")
 109     test_func = functools.partial(_bgp_default_route_is_valid, router)
 110     success, result = topotest.run_and_expect(test_func, not None, count=30, wait=0.5)
 111     assert result is not None, "0.0.0.0/0 exists at r2"
 112
 113     step("Announce 10.0.0.0/22 from R2")
 114     router.vtysh_cmd("conf t\nrouter bgp\naddress-family ipv4\nredistribute connected")
 115
 116     step("Check if we have 0.0.0.0/0 at R2")
 117     test_func = functools.partial(_bgp_default_route_is_valid, router)
 118     success, result = topotest.run_and_expect(test_func, None, count=30, wait=0.5)
 119     assert result is None, "0.0.0.0/0 does not exist at r2"
 120
 121     step("Withdraw 10.0.0.0/22 from R2 again")
 122     router.vtysh_cmd(
 123         "conf t\nrouter bgp\naddress-family ipv4\nno redistribute connected"
 124     )
 125
 126     step("Check if we don't have 0.0.0.0/0 at R2 again")
 127     test_func = functools.partial(_bgp_default_route_is_valid, router)
 128     success, result = topotest.run_and_expect(test_func, not None, count=30, wait=0.5)
 129     assert result is not None, "0.0.0.0/0 exists at r2"
 130
 131
 132 if __name__ == "__main__":
 133     args = ["-s"] + sys.argv[1:]
 134     sys.exit(pytest.main(args))