#!/usr/bin/env python3 # # Copyright (C) 2019-2020 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 os import unittest from psutil import process_iter from vyos.configsession import ConfigSession, ConfigSessionError from vyos.util import read_file config_file = '/etc/ppp/peers/{}' dhcp6c_config_file = '/run/dhcp6c/dhcp6c.{}.conf' 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 [] def get_dhcp6c_config_value(interface, key): tmp = read_file(dhcp6c_config_file.format(interface)) tmp = re.findall(r'\n?{}\s+(.*)'.format(key), tmp) out = [] for item in tmp: out.append(item.replace(';','')) return out class PPPoEInterfaceTest(unittest.TestCase): def setUp(self): self.session = ConfigSession(os.getpid()) self._interfaces = ['pppoe0', 'pppoe50'] self._source_interface = 'eth0' def tearDown(self): self.session.delete(base_path) self.session.commit() del self.session def test_pppoe(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.session.set(base_path + [interface, 'authentication', 'user', user]) self.session.set(base_path + [interface, 'authentication', 'password', passwd]) self.session.set(base_path + [interface, 'default-route', 'auto']) self.session.set(base_path + [interface, 'mtu', mtu]) self.session.set(base_path + [interface, 'no-peer-dns']) # check validate() - a source-interface is required with self.assertRaises(ConfigSessionError): self.session.commit() self.session.set(base_path + [interface, 'source-interface', self._source_interface]) # commit changes self.session.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) # Check if ppp process is running in the interface in question running = False for p in process_iter(): if "pppd" in p.name(): if interface in p.cmdline(): running = True self.assertTrue(running) def test_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.session.set(base_path + [interface, 'authentication', 'user', 'vyos']) self.session.set(base_path + [interface, 'authentication', 'password', 'vyos']) self.session.set(base_path + [interface, 'default-route', 'none']) self.session.set(base_path + [interface, 'no-peer-dns']) self.session.set(base_path + [interface, 'source-interface', self._source_interface]) self.session.set(base_path + [interface, 'ipv6', 'enable']) # prefix delegation stuff dhcpv6_pd_base = base_path + [interface, 'dhcpv6-options', 'pd', '0'] self.session.set(dhcpv6_pd_base + ['length', '56']) self.session.set(dhcpv6_pd_base + ['interface', self._source_interface, 'address', address]) self.session.set(dhcpv6_pd_base + ['interface', self._source_interface, 'sla-id', sla_id]) # commit changes self.session.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') for param in ['+ipv6', 'ipv6cp-use-ipaddr']: tmp = get_config_value(interface, param)[0] self.assertEqual(tmp, param) # verify DHCPv6 prefix delegation # will return: ['delegation', '::/56 infinity;'] tmp = get_dhcp6c_config_value(interface, 'prefix')[1].split()[0] # mind the whitespace self.assertEqual(tmp, '::/56') tmp = get_dhcp6c_config_value(interface, 'prefix-interface')[0].split()[0] self.assertEqual(tmp, self._source_interface) tmp = get_dhcp6c_config_value(interface, 'ifid')[0] self.assertEqual(tmp, address) tmp = get_dhcp6c_config_value(interface, 'sla-id')[0] self.assertEqual(tmp, sla_id) tmp = get_dhcp6c_config_value(interface, 'sla-len')[0] self.assertEqual(tmp, sla_len) # Check if ppp process is running in the interface in question running = False for p in process_iter(): if "pppd" in p.name(): running = True self.assertTrue(running) # We can not check if wide-dhcpv6 process is running as it is started # after the PPP interface gets a link to the ISP - but we can see if # it would be started by the scripts tmp = read_file(f'/etc/ppp/ipv6-up.d/1000-vyos-pppoe-{interface}') tmp = re.findall(f'systemctl start dhcp6c@{interface}.service', tmp) self.assertTrue(tmp) if __name__ == '__main__': unittest.main()