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
|
# Copyright (C) 2015 Nippon Telegraph and Telephone Corporation.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import unittest
from fabric.api import local
from lib.gobgp import *
from lib.quagga import *
import sys
import os
import time
import nose
from noseplugin import OptionParser, parser_option
from itertools import combinations
class GoBGPTestBase(unittest.TestCase):
@classmethod
def setUpClass(cls):
gobgp_ctn_image_name = 'osrg/gobgp'
if parser_option.use_local:
make_gobgp_ctn()
gobgp_ctn_image_name = 'gobgp'
g1 = GoBGPContainer(name='g1', asn=65000, router_id='192.168.0.1',
ctn_image_name=gobgp_ctn_image_name,
log_level=parser_option.gobgp_log_level)
q1 = QuaggaBGPContainer(name='q1', asn=65000, router_id='192.168.0.2')
q2 = QuaggaBGPContainer(name='q2', asn=65000, router_id='192.168.0.3')
qs = [q1, q2]
ctns = [g1, q1, q2]
# advertise a route from q1, q2, q3
for idx, c in enumerate(qs):
route = '10.0.{0}.0/24'.format(idx+1)
c.add_route(route)
initial_wait_time = max(ctn.run() for ctn in ctns)
time.sleep(initial_wait_time)
br01 = Bridge(name='br01', subnet='192.168.10.0/24')
[br01.addif(ctn) for ctn in ctns]
# ibgp peer. loop topology
for a, b in combinations(ctns, 2):
a.add_peer(b)
b.add_peer(a)
cls.gobgp = g1
cls.quaggas = {'q1': q1, 'q2': q2}
cls.bridges = {'br01': br01}
# test each neighbor state is turned establish
def test_01_neighbor_established(self):
for q in self.quaggas.itervalues():
self.gobgp.wait_for(expected_state=BGP_FSM_ESTABLISHED, peer=q)
def test_02_check_gobgp_global_rib(self):
for q in self.quaggas.itervalues():
# paths expected to exist in gobgp's global rib
routes = q.routes.keys()
timeout = 120
interval = 1
count = 0
while True:
# gobgp's global rib
global_rib = [p['prefix'] for p in self.gobgp.get_global_rib()]
for p in global_rib:
if p in routes:
routes.remove(p)
if len(routes) == 0:
break
time.sleep(interval)
count += interval
if count >= timeout:
raise Exception('timeout')
def test_03_check_gobgp_adj_rib_out(self):
for q in self.quaggas.itervalues():
paths = self.gobgp.get_adj_rib_out(q)
# bgp speaker mustn't forward iBGP routes to iBGP peers
self.assertTrue(len(paths) == 0)
def test_04_originate_path(self):
self.gobgp.add_route('10.10.0.0/24')
dst = self.gobgp.get_global_rib('10.10.0.0/24')
self.assertTrue(len(dst) == 1)
self.assertTrue(len(dst[0]['paths']) == 1)
path = dst[0]['paths'][0]
self.assertTrue(path['nexthop'] == '0.0.0.0')
self.assertTrue(len(self.gobgp._get_as_path(path)) == 0)
def test_05_check_gobgp_adj_rib_out(self):
for q in self.quaggas.itervalues():
paths = self.gobgp.get_adj_rib_out(q)
self.assertTrue(len(paths) == len(self.gobgp.routes))
path = paths[0]
self.assertTrue(path['nlri']['prefix'] == '10.10.0.0/24')
peer_info = self.gobgp.peers[q]
local_addr = peer_info['local_addr'].split('/')[0]
self.assertTrue(path['nexthop'] == local_addr)
self.assertTrue(len(self.gobgp._get_as_path(path)) == 0)
# check routes are properly advertised to all BGP speaker
def test_06_check_quagga_global_rib(self):
interval = 1
timeout = int(120/interval)
for q in self.quaggas.itervalues():
done = False
for _ in range(timeout):
if done:
break
global_rib = q.get_global_rib()
# quagga's global_rib must have two routes at least,
# a self-generated route and a gobgp-generated route
if len(global_rib) < len(q.routes) + len(self.gobgp.routes):
time.sleep(interval)
continue
peer_info = self.gobgp.peers[q]
local_addr = peer_info['local_addr'].split('/')[0]
for r in self.gobgp.routes.keys():
self.assertTrue(r in (p['prefix'] for p in global_rib))
for rr in global_rib:
if rr['prefix'] == r:
self.assertTrue(rr['nexthop'] == local_addr)
for r in q.routes.keys():
self.assertTrue(r in (p['prefix'] for p in global_rib))
for rr in global_rib:
if rr['prefix'] == r:
self.assertTrue(rr['nexthop'] == '0.0.0.0')
done = True
if done:
continue
# should not reach here
self.assertTrue(False)
def test_07_add_ebgp_peer(self):
q3 = QuaggaBGPContainer(name='q3', asn=65001, router_id='192.168.0.4')
self.quaggas['q3'] = q3
q3.add_route('10.0.3.0/24')
initial_wait_time = q3.run()
time.sleep(initial_wait_time)
self.bridges['br01'].addif(q3)
self.gobgp.add_peer(q3)
q3.add_peer(self.gobgp)
self.gobgp.wait_for(expected_state=BGP_FSM_ESTABLISHED, peer=q3)
def test_08_check_global_rib(self):
self.test_02_check_gobgp_global_rib()
def test_09_check_gobgp_ebgp_adj_rib_out(self):
q1 = self.quaggas['q1']
q2 = self.quaggas['q2']
q3 = self.quaggas['q3']
paths = self.gobgp.get_adj_rib_out(q3)
total_len = len(q1.routes) + len(q2.routes) + len(self.gobgp.routes)
assert(len(paths) == total_len)
for path in paths:
peer_info = self.gobgp.peers[q3]
local_addr = peer_info['local_addr'].split('/')[0]
self.assertTrue(path['nexthop'] == local_addr)
self.assertTrue(self.gobgp._get_as_path(path) == [self.gobgp.asn])
def test_10_check_gobgp_ibgp_adj_rib_out(self):
q1 = self.quaggas['q1']
q3 = self.quaggas['q3']
peer_info = self.gobgp.peers[q3]
neigh_addr = peer_info['neigh_addr'].split('/')[0]
for prefix in q3.routes.iterkeys():
paths = self.gobgp.get_adj_rib_out(q1, prefix)
self.assertTrue(len(paths) == 1)
path = paths[0]
# bgp router mustn't change nexthop of routes from eBGP peers
# which are sent to iBGP peers
self.assertTrue(path['nexthop'] == neigh_addr)
# bgp router mustn't change aspath of routes from eBGP peers
# which are sent to iBGP peers
self.assertTrue(self.gobgp._get_as_path(path) == [q3.asn])
if __name__ == '__main__':
if os.geteuid() is not 0:
print "you are not root."
sys.exit(1)
output = local("which docker 2>&1 > /dev/null ; echo $?", capture=True)
if int(output) is not 0:
print "docker not found"
sys.exit(1)
nose.main(argv=sys.argv, addplugins=[OptionParser()],
defaultTest=sys.argv[0])
|
