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#!/usr/bin/env python3
#
# Copyright (C) 2019-2022 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 re
import unittest
from vyos.configsession import ConfigSessionError
from base_vyostest_shim import VyOSUnitTestSHIM
from vyos.utils.file import read_file
from vyos.utils.process import process_named_running
PROCESS_NAME = 'radvd'
RADVD_CONF = '/run/radvd/radvd.conf'
interface = 'eth1'
base_path = ['service', 'router-advert', 'interface', interface]
address_base = ['interfaces', 'ethernet', interface, 'address']
prefix = '::/64'
def get_config_value(key):
tmp = read_file(RADVD_CONF)
tmp = re.findall(r'\n?{}\s+(.*)'.format(key), tmp)
return tmp[0].split()[0].replace(';','')
class TestServiceRADVD(VyOSUnitTestSHIM.TestCase):
@classmethod
def setUpClass(cls):
super(TestServiceRADVD, cls).setUpClass()
# ensure we can also run this test on a live system - so lets clean
# out the current configuration :)
cls.cli_delete(cls, ['service', 'router-advert'])
cls.cli_set(cls, address_base + ['2001:db8::1/64'])
@classmethod
def tearDownClass(cls):
cls.cli_delete(cls, address_base)
super(TestServiceRADVD, cls).tearDownClass()
def tearDown(self):
# Check for running process
self.assertTrue(process_named_running(PROCESS_NAME))
self.cli_delete(base_path)
self.cli_commit()
# Check for no longer running process
self.assertFalse(process_named_running(PROCESS_NAME))
def test_common(self):
self.cli_set(base_path + ['prefix', prefix, 'no-on-link-flag'])
self.cli_set(base_path + ['prefix', prefix, 'no-autonomous-flag'])
self.cli_set(base_path + ['prefix', prefix, 'valid-lifetime', 'infinity'])
self.cli_set(base_path + ['other-config-flag'])
# commit changes
self.cli_commit()
# verify values
tmp = get_config_value('interface')
self.assertEqual(tmp, interface)
tmp = get_config_value('prefix')
self.assertEqual(tmp, prefix)
tmp = get_config_value('AdvOtherConfigFlag')
self.assertEqual(tmp, 'on')
# this is a default value
tmp = get_config_value('AdvRetransTimer')
self.assertEqual(tmp, '0')
# this is a default value
tmp = get_config_value('AdvCurHopLimit')
self.assertEqual(tmp, '64')
# this is a default value
tmp = get_config_value('AdvDefaultPreference')
self.assertEqual(tmp, 'medium')
tmp = get_config_value('AdvAutonomous')
self.assertEqual(tmp, 'off')
# this is a default value
tmp = get_config_value('AdvValidLifetime')
self.assertEqual(tmp, 'infinity')
# this is a default value
tmp = get_config_value('AdvPreferredLifetime')
self.assertEqual(tmp, '14400')
tmp = get_config_value('AdvOnLink')
self.assertEqual(tmp, 'off')
tmp = get_config_value('DeprecatePrefix')
self.assertEqual(tmp, 'off')
tmp = get_config_value('DecrementLifetimes')
self.assertEqual(tmp, 'off')
def test_dns(self):
nameserver = ['2001:db8::1', '2001:db8::2']
dnssl = ['vyos.net', 'vyos.io']
ns_lifetime = '599'
self.cli_set(base_path + ['prefix', prefix, 'valid-lifetime', 'infinity'])
self.cli_set(base_path + ['other-config-flag'])
for ns in nameserver:
self.cli_set(base_path + ['name-server', ns])
for sl in dnssl:
self.cli_set(base_path + ['dnssl', sl])
self.cli_set(base_path + ['name-server-lifetime', ns_lifetime])
# The value, if not 0, must be at least interval max (defaults to 600).
with self.assertRaises(ConfigSessionError):
self.cli_commit()
ns_lifetime = '600'
self.cli_set(base_path + ['name-server-lifetime', ns_lifetime])
# commit changes
self.cli_commit()
config = read_file(RADVD_CONF)
tmp = 'RDNSS ' + ' '.join(nameserver) + ' {'
self.assertIn(tmp, config)
tmp = f'AdvRDNSSLifetime {ns_lifetime};'
self.assertIn(tmp, config)
tmp = 'DNSSL ' + ' '.join(dnssl) + ' {'
self.assertIn(tmp, config)
def test_deprecate_prefix(self):
self.cli_set(base_path + ['prefix', prefix, 'valid-lifetime', 'infinity'])
self.cli_set(base_path + ['prefix', prefix, 'deprecate-prefix'])
self.cli_set(base_path + ['prefix', prefix, 'decrement-lifetime'])
# commit changes
self.cli_commit()
tmp = get_config_value('DeprecatePrefix')
self.assertEqual(tmp, 'on')
tmp = get_config_value('DecrementLifetimes')
self.assertEqual(tmp, 'on')
def test_route(self):
route = '2001:db8:1000::/64'
self.cli_set(base_path + ['prefix', prefix])
self.cli_set(base_path + ['route', route])
# commit changes
self.cli_commit()
config = read_file(RADVD_CONF)
tmp = f'route {route}' + ' {'
self.assertIn(tmp, config)
self.assertIn('AdvRouteLifetime 1800;', config)
self.assertIn('AdvRoutePreference medium;', config)
self.assertIn('RemoveRoute on;', config)
def test_rasrcaddress(self):
ra_src = ['fe80::1', 'fe80::2']
self.cli_set(base_path + ['prefix', prefix])
for src in ra_src:
self.cli_set(base_path + ['source-address', src])
# commit changes
self.cli_commit()
config = read_file(RADVD_CONF)
self.assertIn('AdvRASrcAddress {', config)
for src in ra_src:
self.assertIn(f' {src};', config)
def test_nat64prefix(self):
nat64prefix = '64:ff9b::/96'
nat64prefix_invalid = '64:ff9b::/44'
self.cli_set(base_path + ['nat64prefix', nat64prefix])
# and another invalid prefix
# Invalid NAT64 prefix length for "2001:db8::/34", can only be one of:
# /32, /40, /48, /56, /64, /96
self.cli_set(base_path + ['nat64prefix', nat64prefix_invalid])
with self.assertRaises(ConfigSessionError):
self.cli_commit()
self.cli_delete(base_path + ['nat64prefix', nat64prefix_invalid])
# NAT64 valid-lifetime must not be smaller then "interval max"
self.cli_set(base_path + ['nat64prefix', nat64prefix, 'valid-lifetime', '500'])
with self.assertRaises(ConfigSessionError):
self.cli_commit()
self.cli_delete(base_path + ['nat64prefix', nat64prefix, 'valid-lifetime'])
# commit changes
self.cli_commit()
config = read_file(RADVD_CONF)
tmp = f'nat64prefix {nat64prefix}' + ' {'
self.assertIn(tmp, config)
self.assertIn('AdvValidLifetime 65528;', config) # default
def test_advsendadvert_advintervalopt(self):
ra_src = ['fe80::1', 'fe80::2']
self.cli_set(base_path + ['prefix', prefix])
self.cli_set(base_path + ['no-send-advert'])
# commit changes
self.cli_commit()
# Verify generated configuration
config = read_file(RADVD_CONF)
tmp = get_config_value('AdvSendAdvert')
self.assertEqual(tmp, 'off')
tmp = get_config_value('AdvIntervalOpt')
self.assertEqual(tmp, 'on')
self.cli_set(base_path + ['no-send-interval'])
# commit changes
self.cli_commit()
# Verify generated configuration
config = read_file(RADVD_CONF)
tmp = get_config_value('AdvSendAdvert')
self.assertEqual(tmp, 'off')
tmp = get_config_value('AdvIntervalOpt')
self.assertEqual(tmp, 'off')
if __name__ == '__main__':
unittest.main(verbosity=2)
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