#!/usr/bin/env python3 # # Copyright (C) 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 . import re import os import unittest from vyos.configsession import ConfigSession from vyos.configsession import ConfigSessionError from vyos.ifconfig import Section from vyos.util import cmd from vyos.util import process_named_running from vyos.util import read_file PROCESS_NAME = 'dhcrelay' RELAY_CONF = '/run/dhcp-relay/dhcrelay.conf' base_path = ['service', 'dhcp-relay'] def get_config_value(key): tmp = read_file(SSHD_CONF) tmp = re.findall(f'\n?{key}\s+(.*)', tmp) return tmp class TestServiceDHCPRelay(unittest.TestCase): def setUp(self): self.session = ConfigSession(os.getpid()) # ensure we can also run this test on a live system - so lets clean # out the current configuration :) self.session.delete(base_path) def tearDown(self): self.session.delete(base_path) self.session.commit() del self.session def test_relay_default(self): max_size = '800' hop_count = '20' agents_packets = 'append' servers = ['192.0.2.1', '192.0.2.2'] self.session.set(base_path + ['interface', 'lo']) # check validate() - DHCP relay does not support the loopback interface with self.assertRaises(ConfigSessionError): self.session.commit() self.session.delete(base_path + ['interface', 'lo']) # activate DHCP relay on all ethernet interfaces for tmp in Section.interfaces("ethernet"): self.session.set(base_path + ['interface', tmp]) # check validate() - No DHCP relay server(s) configured with self.assertRaises(ConfigSessionError): self.session.commit() for server in servers: self.session.set(base_path + ['server', server]) self.session.set(base_path + ['relay-options', 'max-size', max_size]) self.session.set(base_path + ['relay-options', 'hop-count', hop_count]) self.session.set(base_path + ['relay-options', 'relay-agents-packets', agents_packets]) # commit changes self.session.commit() # Check configured port config = read_file(RELAY_CONF) # Test configured relay interfaces for tmp in Section.interfaces("ethernet"): self.assertIn(f'-i {tmp}', config) # Test relay servers for server in servers: self.assertIn(f' {server}', config) # Test max-size self.assertIn(f'-A {max_size}', config) # Hop count self.assertIn(f'-c {hop_count}', config) # relay-agents-packets self.assertIn(f'-a -m {agents_packets}', config) # Check for running process self.assertTrue(process_named_running(PROCESS_NAME)) if __name__ == '__main__': unittest.main()