tests/topotests/bgp_default_route/test_bgp_default-originate.py

   1 #!/usr/bin/env python
   2
   3 # Copyright (c) 2019-2020 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 without route-map.
  23 """
  24
  25 import os
  26 import sys
  27 import json
  28 import time
  29 import pytest
  30 import functools
  31
  32 CWD = os.path.dirname(os.path.realpath(__file__))
  33 sys.path.append(os.path.join(CWD, "../"))
  34
  35 # pylint: disable=C0413
  36 from lib import topotest
  37 from lib.topogen import Topogen, TopoRouter, get_topogen
  38 from lib.topolog import logger
  39 from mininet.topo import Topo
  40
  41
  42 class TemplateTopo(Topo):
  43     def build(self, *_args, **_opts):
  44         tgen = get_topogen(self)
  45
  46         for routern in range(1, 3):
  47             tgen.add_router("r{}".format(routern))
  48
  49         switch = tgen.add_switch("s1")
  50         switch.add_link(tgen.gears["r1"])
  51         switch.add_link(tgen.gears["r2"])
  52
  53
  54 def setup_module(mod):
  55     tgen = Topogen(TemplateTopo, mod.__name__)
  56     tgen.start_topology()
  57
  58     router_list = tgen.routers()
  59
  60     for i, (rname, router) in enumerate(router_list.items(), 1):
  61         router.load_config(
  62             TopoRouter.RD_ZEBRA, os.path.join(CWD, "{}/zebra.conf".format(rname))
  63         )
  64         router.load_config(
  65             TopoRouter.RD_BGP, os.path.join(CWD, "{}/bgpd.conf".format(rname))
  66         )
  67
  68     tgen.start_router()
  69
  70
  71 def teardown_module(mod):
  72     tgen = get_topogen()
  73     tgen.stop_topology()
  74
  75
  76 def test_bgp_default_originate_route_map():
  77     tgen = get_topogen()
  78
  79     if tgen.routers_have_failure():
  80         pytest.skip(tgen.errors)
  81
  82     def _bgp_check_if_received():
  83         output = json.loads(
  84             tgen.gears["r2"].vtysh_cmd("show ip bgp neighbor 192.168.255.1 json")
  85         )
  86         expected = {
  87             "192.168.255.1": {
  88                 "bgpState": "Established",
  89                 "addressFamilyInfo": {"ipv4Unicast": {"acceptedPrefixCounter": 1}},
  90             }
  91         }
  92         return topotest.json_cmp(output, expected)
  93
  94     def _bgp_check_if_originated():
  95         output = json.loads(tgen.gears["r1"].vtysh_cmd("show ip bgp summary json"))
  96         expected = {"ipv4Unicast": {"peers": {"192.168.255.2": {"pfxSnt": 1}}}}
  97         return topotest.json_cmp(output, expected)
  98
  99     def _bgp_default_route_is_valid(router):
 100         output = json.loads(router.vtysh_cmd("show ip bgp 0.0.0.0/0 json"))
 101         expected = {"paths": [{"valid": True}]}
 102         return topotest.json_cmp(output, expected)
 103
 104     test_func = functools.partial(_bgp_check_if_received)
 105     success, result = topotest.run_and_expect(test_func, None, count=30, wait=0.5)
 106     assert result is None, "No 0.0.0.0/0 at r2 from r1"
 107
 108     test_func = functools.partial(_bgp_check_if_originated)
 109     success, result = topotest.run_and_expect(test_func, None, count=30, wait=0.5)
 110     assert result is None, "No 0.0.0.0/0 from r1 to r2"
 111
 112     test_func = functools.partial(_bgp_default_route_is_valid, tgen.gears["r2"])
 113     success, result = topotest.run_and_expect(test_func, None, count=30, wait=0.5)
 114     assert result is None, "Failed to see 0.0.0.0/0 in r2"
 115
 116
 117 if __name__ == "__main__":
 118     args = ["-s"] + sys.argv[1:]
 119     sys.exit(pytest.main(args))