tests/topotests/bgp_vrf_lite_ipv6_rtadv/test_bgp_vrf_lite_ipv6_rtadv.py

   1 #!/usr/bin/env python
   2
   3 #
   4 # test_bgp_ipv6_rtadv.py
   5 # Part of NetDEF Topology Tests
   6 #
   7 # Copyright (c) 2019 by 6WIND
   8 #
   9 # Permission to use, copy, modify, and/or distribute this software
  10 # for any purpose with or without fee is hereby granted, provided
  11 # that the above copyright notice and this permission notice appear
  12 # in all copies.
  13 #
  14 # THE SOFTWARE IS PROVIDED "AS IS" AND NETDEF DISCLAIMS ALL WARRANTIES
  15 # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  16 # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NETDEF BE LIABLE FOR
  17 # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY
  18 # DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
  19 # WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
  20 # ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
  21 # OF THIS SOFTWARE.
  22 #
  23
  24 """
  25  test_bgp_ipv6_rtadv.py: Test the FRR BGP daemon with BGP IPv6 interface
  26  with route advertisements on a separate netns.
  27 """
  28
  29 import os
  30 import sys
  31 import json
  32 from functools import partial
  33 import pytest
  34
  35 # Save the Current Working Directory to find configuration files.
  36 CWD = os.path.dirname(os.path.realpath(__file__))
  37 sys.path.append(os.path.join(CWD, "../"))
  38
  39 # pylint: disable=C0413
  40 # Import topogen and topotest helpers
  41 from lib import topotest
  42 from lib.topogen import Topogen, TopoRouter, get_topogen
  43 from lib.topolog import logger
  44 from lib.common_config import required_linux_kernel_version
  45
  46 # Required to instantiate the topology builder class.
  47
  48 pytestmark = [pytest.mark.bgpd]
  49
  50
  51 def build_topo(tgen):
  52     "Build function"
  53
  54     # Create 2 routers.
  55     tgen.add_router("r1")
  56     tgen.add_router("r2")
  57
  58     switch = tgen.add_switch("s1")
  59     switch.add_link(tgen.gears["r1"])
  60     switch.add_link(tgen.gears["r2"])
  61
  62
  63 def setup_module(mod):
  64     "Sets up the pytest environment"
  65
  66     # Required linux kernel version for this suite to run.
  67     result = required_linux_kernel_version("5.0")
  68     if result is not True:
  69         pytest.skip("Kernel requirements are not met")
  70
  71     tgen = Topogen(build_topo, mod.__name__)
  72     tgen.start_topology()
  73
  74     router_list = tgen.routers()
  75
  76     logger.info("Testing with VRF Lite support")
  77
  78     cmds = [
  79         "ip link add {0}-cust1 type vrf table 1001",
  80         "ip link add loop1 type dummy",
  81         "ip link set loop1 master {0}-cust1",
  82         "ip link set {0}-eth0 master {0}-cust1",
  83     ]
  84
  85     for rname, router in router_list.items():
  86         for cmd in cmds:
  87             output = tgen.net[rname].cmd(cmd.format(rname))
  88
  89     for rname, router in router_list.items():
  90         router.load_config(
  91             TopoRouter.RD_ZEBRA, os.path.join(CWD, "{}/zebra.conf".format(rname))
  92         )
  93         router.load_config(
  94             TopoRouter.RD_BGP, os.path.join(CWD, "{}/bgpd.conf".format(rname))
  95         )
  96
  97     # Initialize all routers.
  98     tgen.start_router()
  99
 100
 101 def teardown_module(_mod):
 102     "Teardown the pytest environment"
 103     tgen = get_topogen()
 104
 105     tgen.stop_topology()
 106
 107
 108 def test_protocols_convergence():
 109     """
 110     Assert that all protocols have converged
 111     statuses as they depend on it.
 112     """
 113     tgen = get_topogen()
 114     if tgen.routers_have_failure():
 115         pytest.skip(tgen.errors)
 116
 117     # Check IPv4 routing tables.
 118     logger.info("Checking IPv4 routes for convergence")
 119
 120     for router in tgen.routers().values():
 121         json_file = "{}/{}/ipv4_routes.json".format(CWD, router.name)
 122         if not os.path.isfile(json_file):
 123             logger.info("skipping file {}".format(json_file))
 124             continue
 125
 126         expected = json.loads(open(json_file).read())
 127         test_func = partial(
 128             topotest.router_json_cmp,
 129             router,
 130             "show ip route vrf {}-cust1 json".format(router.name),
 131             expected,
 132         )
 133         _, result = topotest.run_and_expect(test_func, None, count=160, wait=0.5)
 134         assertmsg = '"{}" JSON output mismatches'.format(router.name)
 135         assert result is None, assertmsg
 136
 137     # Check IPv6 routing tables.
 138     logger.info("Checking IPv6 routes for convergence")
 139     for router in tgen.routers().values():
 140         json_file = "{}/{}/ipv6_routes.json".format(CWD, router.name)
 141         if not os.path.isfile(json_file):
 142             logger.info("skipping file {}".format(json_file))
 143             continue
 144
 145         expected = json.loads(open(json_file).read())
 146         test_func = partial(
 147             topotest.router_json_cmp,
 148             router,
 149             "show ipv6 route vrf {}-cust1 json".format(router.name),
 150             expected,
 151         )
 152         _, result = topotest.run_and_expect(test_func, None, count=160, wait=0.5)
 153         assertmsg = '"{}" JSON output mismatches'.format(router.name)
 154         assert result is None, assertmsg
 155
 156
 157 def test_memory_leak():
 158     "Run the memory leak test and report results."
 159     tgen = get_topogen()
 160     if not tgen.is_memleak_enabled():
 161         pytest.skip("Memory leak test/report is disabled")
 162
 163     tgen.report_memory_leaks()
 164
 165
 166 if __name__ == "__main__":
 167     args = ["-s"] + sys.argv[1:]
 168     sys.exit(pytest.main(args))