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
|
#!/usr/bin/env python3
#
# Copyright (C) 2021-2024 VyOS maintainers and contributors
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 or later as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import unittest
from base_vyostest_shim import VyOSUnitTestSHIM
from vyos.configsession import ConfigSessionError
from vyos.utils.system import sysctl_read
from vyos.xml_ref import default_value
from vyos.frrender import mgmt_daemon
from vyos.frrender import zebra_daemon
base_path = ['system', 'ipv6']
class TestSystemIPv6(VyOSUnitTestSHIM.TestCase):
@classmethod
def setUpClass(cls):
super(TestSystemIPv6, cls).setUpClass()
# ensure we can also run this test on a live system - so lets clean
# out the current configuration :)
cls.cli_delete(cls, base_path)
def tearDown(self):
self.cli_delete(base_path)
self.cli_commit()
def test_system_ipv6_forwarding(self):
# Test if IPv6 forwarding can be disabled globally, default is '1'
# which means forwearding enabled
self.assertEqual(sysctl_read('net.ipv6.conf.all.forwarding'), '1')
self.cli_set(base_path + ['disable-forwarding'])
self.cli_commit()
self.assertEqual(sysctl_read('net.ipv6.conf.all.forwarding'), '0')
frrconfig = self.getFRRconfig('', end='', daemon=zebra_daemon)
self.assertIn('no ipv6 forwarding', frrconfig)
self.cli_delete(base_path + ['disable-forwarding'])
self.cli_commit()
self.assertEqual(sysctl_read('net.ipv6.conf.all.forwarding'), '1')
frrconfig = self.getFRRconfig('', end='', daemon=zebra_daemon)
self.assertNotIn('no ipv6 forwarding', frrconfig)
def test_system_ipv6_strict_dad(self):
# This defaults to 1
self.assertEqual(sysctl_read('net.ipv6.conf.all.accept_dad'), '1')
# Do not assign any IPv6 address on interfaces, this requires a reboot
# which can not be tested, but we can read the config file :)
self.cli_set(base_path + ['strict-dad'])
self.cli_commit()
# Verify configuration file
self.assertEqual(sysctl_read('net.ipv6.conf.all.accept_dad'), '2')
def test_system_ipv6_multipath(self):
# This defaults to 0
self.assertEqual(sysctl_read('net.ipv6.fib_multipath_hash_policy'), '0')
# Do not assign any IPv6 address on interfaces, this requires a reboot
# which can not be tested, but we can read the config file :)
self.cli_set(base_path + ['multipath', 'layer4-hashing'])
self.cli_commit()
# Verify configuration file
self.assertEqual(sysctl_read('net.ipv6.fib_multipath_hash_policy'), '1')
def test_system_ipv6_neighbor_table_size(self):
# Maximum number of entries to keep in the ARP cache, the
# default is 8192
cli_default = int(default_value(base_path + ['neighbor', 'table-size']))
def _verify_gc_thres(table_size):
self.assertEqual(sysctl_read('net.ipv6.neigh.default.gc_thresh3'), str(table_size))
self.assertEqual(sysctl_read('net.ipv6.neigh.default.gc_thresh2'), str(table_size // 2))
self.assertEqual(sysctl_read('net.ipv6.neigh.default.gc_thresh1'), str(table_size // 8))
_verify_gc_thres(cli_default)
for size in [1024, 2048, 4096, 8192, 16384, 32768]:
self.cli_set(base_path + ['neighbor', 'table-size', str(size)])
self.cli_commit()
_verify_gc_thres(size)
def test_system_ipv6_protocol_route_map(self):
protocols = ['any', 'babel', 'bgp', 'connected', 'isis',
'kernel', 'ospfv3', 'ripng', 'static', 'table']
for protocol in protocols:
route_map = 'route-map-' + protocol.replace('ospfv3', 'ospf6')
self.cli_set(['policy', 'route-map', route_map, 'rule', '10', 'action', 'permit'])
self.cli_set(base_path + ['protocol', protocol, 'route-map', route_map])
self.cli_commit()
# Verify route-map properly applied to FRR
frrconfig = self.getFRRconfig('ipv6 protocol', end='', daemon=mgmt_daemon)
for protocol in protocols:
# VyOS and FRR use a different name for OSPFv3 (IPv6)
if protocol == 'ospfv3':
protocol = 'ospf6'
self.assertIn(f'ipv6 protocol {protocol} route-map route-map-{protocol}', frrconfig)
# Delete route-maps
self.cli_delete(['policy', 'route-map'])
self.cli_delete(base_path + ['protocol'])
self.cli_commit()
# Verify route-map properly applied to FRR
frrconfig = self.getFRRconfig('ipv6 protocol', end='', daemon=mgmt_daemon)
self.assertNotIn(f'ipv6 protocol', frrconfig)
def test_system_ipv6_protocol_non_existing_route_map(self):
non_existing = 'non-existing6'
self.cli_set(base_path + ['protocol', 'static', 'route-map', non_existing])
# VRF does yet not exist - an error must be thrown
with self.assertRaises(ConfigSessionError):
self.cli_commit()
self.cli_set(['policy', 'route-map', non_existing, 'rule', '10', 'action', 'deny'])
# Commit again
self.cli_commit()
def test_system_ipv6_nht(self):
self.cli_set(base_path + ['nht', 'no-resolve-via-default'])
self.cli_commit()
# Verify CLI config applied to FRR
frrconfig = self.getFRRconfig('', end='', daemon=mgmt_daemon)
self.assertIn(f'no ipv6 nht resolve-via-default', frrconfig)
self.cli_delete(base_path + ['nht', 'no-resolve-via-default'])
self.cli_commit()
# Verify CLI config removed to FRR
frrconfig = self.getFRRconfig('', end='', daemon=mgmt_daemon)
self.assertNotIn(f'no ipv6 nht resolve-via-default', frrconfig)
if __name__ == '__main__':
unittest.main(verbosity=2, failfast=True)
|
