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test_interfaces_pppoe.py
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test_interfaces_pppoe.py
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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 psutil import process_iter
from base_vyostest_shim import VyOSUnitTestSHIM
from vyos.configsession import ConfigSessionError
config_file = '/etc/ppp/peers/{}'
base_path = ['interfaces', 'pppoe']
def get_config_value(interface, key):
with open(config_file.format(interface), 'r') as f:
for line in f:
if line.startswith(key):
return list(line.split())
return []
# add a classmethod to setup a temporaray PPPoE server for "proper" validation
class PPPoEInterfaceTest(VyOSUnitTestSHIM.TestCase):
@classmethod
def setUpClass(cls):
super(PPPoEInterfaceTest, cls).setUpClass()
cls._interfaces = ['pppoe10', 'pppoe20', 'pppoe30']
cls._source_interface = 'eth0'
def tearDown(self):
# Validate PPPoE client process
for interface in self._interfaces:
running = False
for proc in process_iter():
if interface in proc.cmdline():
running = True
break
self.assertTrue(running)
self.cli_delete(base_path)
self.cli_commit()
def test_01_pppoe_client(self):
# Check if PPPoE dialer can be configured and runs
for interface in self._interfaces:
user = 'VyOS-user-' + interface
passwd = 'VyOS-passwd-' + interface
mtu = '1400'
self.cli_set(base_path + [interface, 'authentication', 'user', user])
self.cli_set(base_path + [interface, 'authentication', 'password', passwd])
self.cli_set(base_path + [interface, 'mtu', mtu])
self.cli_set(base_path + [interface, 'no-peer-dns'])
# check validate() - a source-interface is required
with self.assertRaises(ConfigSessionError):
self.cli_commit()
self.cli_set(base_path + [interface, 'source-interface', self._source_interface])
# commit changes
self.cli_commit()
# verify configuration file(s)
for interface in self._interfaces:
user = 'VyOS-user-' + interface
password = 'VyOS-passwd-' + interface
tmp = get_config_value(interface, 'mtu')[1]
self.assertEqual(tmp, mtu)
tmp = get_config_value(interface, 'user')[1].replace('"', '')
self.assertEqual(tmp, user)
tmp = get_config_value(interface, 'password')[1].replace('"', '')
self.assertEqual(tmp, password)
tmp = get_config_value(interface, 'ifname')[1]
self.assertEqual(tmp, interface)
def test_02_pppoe_client_disabled_interface(self):
# Check if PPPoE Client can be disabled
for interface in self._interfaces:
self.cli_set(base_path + [interface, 'authentication', 'user', 'vyos'])
self.cli_set(base_path + [interface, 'authentication', 'password', 'vyos'])
self.cli_set(base_path + [interface, 'source-interface', self._source_interface])
self.cli_set(base_path + [interface, 'disable'])
self.cli_commit()
# Validate PPPoE client process - must not run as interfaces are disabled
for interface in self._interfaces:
running = False
for proc in process_iter():
if interface in proc.cmdline():
running = True
break
self.assertFalse(running)
# enable PPPoE interfaces
for interface in self._interfaces:
self.cli_delete(base_path + [interface, 'disable'])
self.cli_commit()
def test_03_pppoe_authentication(self):
# When username or password is set - so must be the other
for interface in self._interfaces:
self.cli_set(base_path + [interface, 'authentication', 'user', 'vyos'])
self.cli_set(base_path + [interface, 'source-interface', self._source_interface])
self.cli_set(base_path + [interface, 'ipv6', 'address', 'autoconf'])
# check validate() - if user is set, so must be the password
with self.assertRaises(ConfigSessionError):
self.cli_commit()
self.cli_set(base_path + [interface, 'authentication', 'password', 'vyos'])
self.cli_commit()
def test_04_pppoe_dhcpv6pd(self):
# Check if PPPoE dialer can be configured with DHCPv6-PD
address = '1'
sla_id = '0'
sla_len = '8'
for interface in self._interfaces:
self.cli_set(base_path + [interface, 'authentication', 'user', 'vyos'])
self.cli_set(base_path + [interface, 'authentication', 'password', 'vyos'])
self.cli_set(base_path + [interface, 'no-default-route'])
self.cli_set(base_path + [interface, 'no-peer-dns'])
self.cli_set(base_path + [interface, 'source-interface', self._source_interface])
self.cli_set(base_path + [interface, 'ipv6', 'address', 'autoconf'])
# prefix delegation stuff
dhcpv6_pd_base = base_path + [interface, 'dhcpv6-options', 'pd', '0']
self.cli_set(dhcpv6_pd_base + ['length', '56'])
self.cli_set(dhcpv6_pd_base + ['interface', self._source_interface, 'address', address])
self.cli_set(dhcpv6_pd_base + ['interface', self._source_interface, 'sla-id', sla_id])
# commit changes
self.cli_commit()
# verify "normal" PPPoE value - 1492 is default MTU
tmp = get_config_value(interface, 'mtu')[1]
self.assertEqual(tmp, '1492')
tmp = get_config_value(interface, 'user')[1].replace('"', '')
self.assertEqual(tmp, 'vyos')
tmp = get_config_value(interface, 'password')[1].replace('"', '')
self.assertEqual(tmp, 'vyos')
tmp = get_config_value(interface, '+ipv6 ipv6cp-use-ipaddr')
self.assertListEqual(tmp, ['+ipv6', 'ipv6cp-use-ipaddr'])
if __name__ == '__main__':
unittest.main(verbosity=2)

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