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#!/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 vyos.configsession import ConfigSession
from vyos.configsession import ConfigSessionError
from vyos.util import cmd
from vyos.util import process_named_running
from vyos.util import read_file
from vyos.template import inc_ip
from vyos.template import address_from_cidr
from vyos.template import netmask_from_cidr
PROCESS_NAME = 'dhcpd'
DHCPD_CONF = '/run/dhcp-server/dhcpd.conf'
base_path = ['service', 'dhcp-server']
subnet = '192.0.2.0/25'
router = inc_ip(subnet, 1)
class TestServiceDHCPServer(unittest.TestCase):
def setUp(self):
self.session = ConfigSession(os.getpid())
cidr_mask = subnet.split('/')[-1]
self.session.set(['interfaces', 'dummy', 'dum8765', 'address', f'{router}/{cidr_mask}'])
def tearDown(self):
self.session.delete(['interfaces', 'dummy', 'dum8765'])
self.session.delete(base_path)
self.session.commit()
del self.session
def test_single_pool_range(self):
shared_net_name = 'SMOKE-1'
dns_1 = inc_ip(subnet, 2)
dns_2 = inc_ip(subnet, 3)
domain_name = 'vyos.net'
range_0_start = inc_ip(subnet, 10)
range_0_stop = inc_ip(subnet, 20)
range_1_start = inc_ip(subnet, 40)
range_1_stop = inc_ip(subnet, 50)
pool = base_path + ['shared-network-name', shared_net_name, 'subnet', subnet]
# we use the first subnet IP address as default gateway
self.session.set(pool + ['default-router', router])
self.session.set(pool + ['dns-server', dns_1])
self.session.set(pool + ['dns-server', dns_2])
self.session.set(pool + ['domain-name', domain_name])
# check validate() - No DHCP address range or active static-mapping set
with self.assertRaises(ConfigSessionError):
self.session.commit()
self.session.set(pool + ['range', '0', 'start', range_0_start])
self.session.set(pool + ['range', '0', 'stop', range_0_stop])
self.session.set(pool + ['range', '1', 'start', range_1_start])
self.session.set(pool + ['range', '1', 'stop', range_1_stop])
# commit changes
self.session.commit()
config = read_file(DHCPD_CONF)
network = address_from_cidr(subnet)
netmask = netmask_from_cidr(subnet)
self.assertIn(f'ddns-update-style none;', config)
self.assertIn(f'subnet {network} netmask {netmask}' + r' {', config)
self.assertIn(f'option domain-name-servers {dns_1}, {dns_2};', config)
self.assertIn(f'option routers {router};', config)
self.assertIn(f'option domain-name "{domain_name}";', config)
self.assertIn(f'default-lease-time 86400;', config)
self.assertIn(f'max-lease-time 86400;', config)
self.assertIn(f'range {range_0_start} {range_0_stop};', config)
self.assertIn(f'range {range_1_start} {range_1_stop};', config)
self.assertIn(f'set shared-networkname = "{shared_net_name}";', config)
# Check for running process
self.assertTrue(process_named_running(PROCESS_NAME))
def test_single_pool_static_mapping(self):
shared_net_name = 'SMOKE-2'
dns_1 = inc_ip(subnet, 2)
dns_2 = inc_ip(subnet, 3)
domain_name = 'vyos.net'
pool = base_path + ['shared-network-name', shared_net_name, 'subnet', subnet]
# we use the first subnet IP address as default gateway
self.session.set(pool + ['default-router', router])
self.session.set(pool + ['dns-server', dns_1])
self.session.set(pool + ['dns-server', dns_2])
self.session.set(pool + ['domain-name', domain_name])
# check validate() - No DHCP address range or active static-mapping set
with self.assertRaises(ConfigSessionError):
self.session.commit()
client_base = 10
for client in ['client1', 'client2', 'client3']:
mac = '00:50:00:00:00:{}'.format(client_base)
self.session.set(pool + ['static-mapping', client, 'mac-address', mac])
self.session.set(pool + ['static-mapping', client, 'ip-address', inc_ip(subnet, client_base)])
client_base += 1
# commit changes
self.session.commit()
config = read_file(DHCPD_CONF)
network = address_from_cidr(subnet)
netmask = netmask_from_cidr(subnet)
self.assertIn(f'ddns-update-style none;', config)
self.assertIn(f'subnet {network} netmask {netmask}' + r' {', config)
self.assertIn(f'option domain-name-servers {dns_1}, {dns_2};', config)
self.assertIn(f'option routers {router};', config)
self.assertIn(f'option domain-name "{domain_name}";', config)
self.assertIn(f'default-lease-time 86400;', config)
self.assertIn(f'max-lease-time 86400;', config)
client_base = 10
for client in ['client1', 'client2', 'client3']:
mac = '00:50:00:00:00:{}'.format(client_base)
ip = inc_ip(subnet, client_base)
self.assertIn(f'host {shared_net_name}_{client}' + ' {', config)
self.assertIn(f'fixed-address {ip};', config)
self.assertIn(f'hardware ethernet {mac};', config)
client_base += 1
self.assertIn(f'set shared-networkname = "{shared_net_name}";', config)
# Check for running process
self.assertTrue(process_named_running(PROCESS_NAME))
if __name__ == '__main__':
unittest.main()
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