1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
|
#!/usr/bin/env python
# SPDX-License-Identifier: ISC
#
# test_bgp_suppress_fib.py
#
# Copyright (c) 2019 by
#
"""
"""
import os
import sys
import json
import pytest
from functools import partial
from time import sleep
from lib.topolog import logger
CWD = os.path.dirname(os.path.realpath(__file__))
sys.path.append(os.path.join(CWD, "../"))
# pylint: disable=C0413
from lib import topotest
from lib.topogen import Topogen, TopoRouter, get_topogen
pytestmark = [pytest.mark.bgpd]
def build_topo(tgen):
for routern in range(1, 4):
tgen.add_router("r{}".format(routern))
switch = tgen.add_switch("s1")
switch.add_link(tgen.gears["r1"])
switch.add_link(tgen.gears["r2"])
switch = tgen.add_switch("s2")
switch.add_link(tgen.gears["r2"])
switch.add_link(tgen.gears["r3"])
def setup_module(mod):
tgen = Topogen(build_topo, mod.__name__)
tgen.start_topology()
router_list = tgen.routers()
for i, (rname, router) in enumerate(router_list.items(), 1):
router.load_config(
TopoRouter.RD_ZEBRA, os.path.join(CWD, "{}/zebra.conf".format(rname))
)
router.load_config(
TopoRouter.RD_BGP, os.path.join(CWD, "{}/bgpd.conf".format(rname))
)
tgen.start_router()
def teardown_module(mod):
tgen = get_topogen()
tgen.stop_topology()
def test_bgp_route():
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
r3 = tgen.gears["r3"]
json_file = "{}/r3/v4_route.json".format(CWD)
expected = json.loads(open(json_file).read())
test_func = partial(
topotest.router_json_cmp,
r3,
"show ip route 40.0.0.0 json",
expected,
)
_, result = topotest.run_and_expect(test_func, None, count=20, wait=0.5)
assertmsg = '"r3" JSON output mismatches'
assert result is None, assertmsg
json_file = "{}/r3/v4_route2.json".format(CWD)
expected = json.loads(open(json_file).read())
test_func = partial(
topotest.router_json_cmp,
r3,
"show ip route 50.0.0.0 json",
expected,
)
_, result = topotest.run_and_expect(test_func, None, count=10, wait=0.5)
assert result is None, assertmsg
json_file = "{}/r3/v4_route3.json".format(CWD)
expected = json.loads(open(json_file).read())
test_func = partial(
topotest.router_json_cmp,
r3,
"show ip route 60.0.0.0 json",
expected,
)
_, result = topotest.run_and_expect(test_func, None, count=10, wait=0.5)
assert result is None, assertmsg
def test_bgp_better_admin_won():
"A better Admin distance protocol may come along and knock us out"
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
r2 = tgen.gears["r2"]
r2.vtysh_cmd("conf\nip route 40.0.0.0/8 10.0.0.10")
json_file = "{}/r2/v4_override.json".format(CWD)
expected = json.loads(open(json_file).read())
logger.info(expected)
test_func = partial(
topotest.router_json_cmp, r2, "show ip route 40.0.0.0 json", expected
)
_, result = topotest.run_and_expect(test_func, None, count=10, wait=0.5)
assertmsg = '"r2" static route did not take over'
assert result is None, assertmsg
r3 = tgen.gears["r3"]
json_file = "{}/r3/v4_override.json".format(CWD)
expected = json.loads(open(json_file).read())
test_func = partial(
topotest.router_json_cmp, r3, "show ip route 40.0.0.0 json", expected
)
_, result = topotest.run_and_expect(test_func, None, count=30, wait=1)
assertmsg = '"r3" route to 40.0.0.0 should have been lost'
assert result is None, assertmsg
r2.vtysh_cmd("conf\nno ip route 40.0.0.0/8 10.0.0.10")
json_file = "{}/r3/v4_route.json".format(CWD)
expected = json.loads(open(json_file).read())
test_func = partial(
topotest.router_json_cmp,
r3,
"show ip route 40.0.0.0 json",
expected,
)
_, result = topotest.run_and_expect(test_func, None, count=30, wait=1)
assertmsg = '"r3" route to 40.0.0.0 did not come back'
assert result is None, assertmsg
def test_bgp_allow_as_in():
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
r2 = tgen.gears["r2"]
config_file = "{}/r2/bgpd.allowas_in.conf".format(CWD)
r2.run("vtysh -f {}".format(config_file))
json_file = "{}/r2/bgp_ipv4_allowas.json".format(CWD)
expected = json.loads(open(json_file).read())
test_func = partial(
topotest.router_json_cmp,
r2,
"show bgp ipv4 uni 192.168.1.1/32 json",
expected,
)
_, result = topotest.run_and_expect(test_func, None, count=10, wait=0.5)
assertmsg = '"r2" static redistribution failed into bgp'
assert result is None, assertmsg
r1 = tgen.gears["r1"]
json_file = "{}/r1/bgp_ipv4_allowas.json".format(CWD)
expected = json.loads(open(json_file).read())
test_func = partial(
topotest.router_json_cmp,
r1,
"show bgp ipv4 uni 192.168.1.1/32 json",
expected,
)
_, result = topotest.run_and_expect(test_func, None, count=30, wait=1)
assertmsg = '"r1" 192.168.1.1/32 route should have arrived'
assert result is None, assertmsg
r2.vtysh_cmd("conf\nno ip route 192.168.1.1/32 10.0.0.10")
json_file = "{}/r2/no_bgp_ipv4_allowas.json".format(CWD)
expected = json.loads(open(json_file).read())
test_func = partial(
topotest.router_json_cmp,
r2,
"show bgp ipv4 uni 192.168.1.1/32 json",
expected,
)
_, result = topotest.run_and_expect(test_func, None, count=30, wait=1)
assertmsg = '"r2" 192.168.1.1/32 route should be gone'
assert result is None, assertmsg
def test_local_vs_non_local():
tgen = get_topogen()
if tgen.routers_have_failure():
pytest.skip(tgen.errors)
r2 = tgen.gears["r2"]
output = json.loads(r2.vtysh_cmd("show bgp ipv4 uni 60.0.0.0/24 json"))
paths = output["paths"]
for i in range(len(paths)):
if "fibPending" in paths[i]:
assert False, "Route 60.0.0.0/24 should not have fibPending"
if __name__ == "__main__":
args = ["-s"] + sys.argv[1:]
sys.exit(pytest.main(args))
|
