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1 | #!/usr/bin/env python |
2 | ||
3 | # | |
4 | # Copyright (c) 2021 by | |
5 | # Donatas Abraitis <donatas.abraitis@gmail.com> | |
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 `bgp default ipv4-unicast` and `bgp default ipv6-unicast` | |
24 | commands work as expected. | |
25 | ||
26 | STEP 1: 'Check if neighbor 192.168.255.254 is enabled for ipv4 address-family only' | |
27 | STEP 2: 'Check if neighbor 192.168.255.254 is enabled for ipv6 address-family only' | |
28 | STEP 3: 'Check if neighbor 192.168.255.254 is enabled for ipv4 and ipv6 address-families' | |
29 | """ | |
30 | ||
31 | import os | |
32 | import sys | |
33 | import json | |
34 | import pytest | |
35 | import functools | |
36 | ||
37 | CWD = os.path.dirname(os.path.realpath(__file__)) | |
38 | sys.path.append(os.path.join(CWD, "../")) | |
39 | ||
40 | # pylint: disable=C0413 | |
41 | from lib import topotest | |
42 | from lib.topogen import Topogen, TopoRouter, get_topogen | |
43 | from lib.topolog import logger | |
44 | from mininet.topo import Topo | |
45 | from lib.common_config import step | |
46 | ||
47 | ||
48 | class TemplateTopo(Topo): | |
49 | def build(self, *_args, **_opts): | |
50 | tgen = get_topogen(self) | |
51 | ||
52 | for routern in range(1, 5): | |
53 | tgen.add_router("r{}".format(routern)) | |
54 | ||
55 | switch = tgen.add_switch("s1") | |
56 | switch.add_link(tgen.gears["r1"]) | |
57 | switch.add_link(tgen.gears["r2"]) | |
58 | switch.add_link(tgen.gears["r3"]) | |
59 | switch.add_link(tgen.gears["r4"]) | |
60 | ||
61 | ||
62 | def setup_module(mod): | |
63 | tgen = Topogen(TemplateTopo, mod.__name__) | |
64 | tgen.start_topology() | |
65 | ||
66 | router_list = tgen.routers() | |
67 | ||
68 | for i, (rname, router) in enumerate(router_list.items(), 1): | |
69 | router.load_config( | |
70 | TopoRouter.RD_ZEBRA, os.path.join(CWD, "{}/zebra.conf".format(rname)) | |
71 | ) | |
72 | router.load_config( | |
73 | TopoRouter.RD_BGP, os.path.join(CWD, "{}/bgpd.conf".format(rname)) | |
74 | ) | |
75 | ||
76 | tgen.start_router() | |
77 | ||
78 | ||
79 | def teardown_module(mod): | |
80 | tgen = get_topogen() | |
81 | tgen.stop_topology() | |
82 | ||
83 | ||
84 | def test_bgp_default_ipv4_ipv6_unicast(): | |
85 | tgen = get_topogen() | |
86 | ||
87 | if tgen.routers_have_failure(): | |
88 | pytest.skip(tgen.errors) | |
89 | ||
90 | step("Check if neighbor 192.168.255.254 is enabled for ipv4 address-family only") | |
91 | ||
92 | def _bgp_neighbor_ipv4_af_only(): | |
93 | tgen.gears["r1"].vtysh_cmd( | |
94 | "conf t\nrouter bgp\nneighbor 192.168.255.254 remote-as external" | |
95 | ) | |
96 | ||
97 | output = json.loads(tgen.gears["r1"].vtysh_cmd("show bgp summary json")) | |
98 | ||
99 | if "ipv4Unicast" in output and "ipv6Unicast" not in output: | |
100 | return True | |
101 | return False | |
102 | ||
103 | assert _bgp_neighbor_ipv4_af_only() == True | |
104 | ||
105 | step("Check if neighbor 192.168.255.254 is enabled for ipv6 address-family only") | |
106 | ||
107 | def _bgp_neighbor_ipv6_af_only(): | |
108 | tgen.gears["r2"].vtysh_cmd( | |
109 | "conf t\nrouter bgp\nneighbor 192.168.255.254 remote-as external" | |
110 | ) | |
111 | ||
112 | output = json.loads(tgen.gears["r2"].vtysh_cmd("show bgp summary json")) | |
113 | ||
114 | if "ipv4Unicast" not in output and "ipv6Unicast" in output: | |
115 | return True | |
116 | return False | |
117 | ||
118 | assert _bgp_neighbor_ipv6_af_only() == True | |
119 | ||
120 | step( | |
121 | "Check if neighbor 192.168.255.254 is enabled for ipv4 and ipv6 address-families" | |
122 | ) | |
123 | ||
124 | def _bgp_neighbor_ipv4_and_ipv6_af(): | |
125 | tgen.gears["r3"].vtysh_cmd( | |
126 | "conf t\nrouter bgp\nneighbor 192.168.255.254 remote-as external" | |
127 | ) | |
128 | ||
129 | output = json.loads(tgen.gears["r3"].vtysh_cmd("show bgp summary json")) | |
130 | ||
131 | if "ipv4Unicast" in output and "ipv6Unicast" in output: | |
132 | return True | |
133 | return False | |
134 | ||
135 | assert _bgp_neighbor_ipv4_and_ipv6_af() == True | |
136 | ||
137 | ||
138 | if __name__ == "__main__": | |
139 | args = ["-s"] + sys.argv[1:] | |
140 | sys.exit(pytest.main(args)) |