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#!/usr/bin/env python3
#
# Copyright (C) 2019-2023 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 os
import unittest
import tempfile
import random
import string
from base_vyostest_shim import VyOSUnitTestSHIM
from vyos.configsession import ConfigSessionError
from vyos.utils.process import cmd
from vyos.utils.process import process_running
DDCLIENT_SYSTEMD_UNIT = '/run/systemd/system/ddclient.service.d/override.conf'
DDCLIENT_CONF = '/run/ddclient/ddclient.conf'
DDCLIENT_PID = '/run/ddclient/ddclient.pid'
DDCLIENT_PNAME = 'ddclient'
base_path = ['service', 'dns', 'dynamic']
server = 'ddns.vyos.io'
hostname = 'test.ddns.vyos.io'
zone = 'vyos.io'
username = 'vyos_user'
password = 'paSS_@4ord'
ttl = '300'
interface = 'eth0'
class TestServiceDDNS(VyOSUnitTestSHIM.TestCase):
def setUp(self):
# Always start with a clean CLI instance
self.cli_delete(base_path)
def tearDown(self):
# Check for running process
self.assertTrue(process_running(DDCLIENT_PID))
# Delete DDNS configuration
self.cli_delete(base_path)
self.cli_commit()
# PID file must no londer exist after process exited
self.assertFalse(os.path.exists(DDCLIENT_PID))
# IPv4 standard DDNS service configuration
def test_01_dyndns_service_standard(self):
svc_path = ['address', interface, 'service']
services = {'cloudflare': {'protocol': 'cloudflare'},
'freedns': {'protocol': 'freedns', 'username': username},
'zoneedit': {'protocol': 'zoneedit1', 'username': username}}
for svc, details in services.items():
self.cli_set(base_path + svc_path + [svc, 'host-name', hostname])
self.cli_set(base_path + svc_path + [svc, 'password', password])
self.cli_set(base_path + svc_path + [svc, 'zone', zone])
self.cli_set(base_path + svc_path + [svc, 'ttl', ttl])
for opt, value in details.items():
self.cli_set(base_path + svc_path + [svc, opt, value])
# 'zone' option is supported and required by 'cloudfare', but not 'freedns' and 'zoneedit'
self.cli_set(base_path + svc_path + [svc, 'zone', zone])
if details['protocol'] == 'cloudflare':
pass
else:
# exception is raised for unsupported ones
with self.assertRaises(ConfigSessionError):
self.cli_commit()
self.cli_delete(base_path + svc_path + [svc, 'zone'])
# 'ttl' option is supported by 'cloudfare', but not 'freedns' and 'zoneedit'
self.cli_set(base_path + svc_path + [svc, 'ttl', ttl])
if details['protocol'] == 'cloudflare':
pass
else:
# exception is raised for unsupported ones
with self.assertRaises(ConfigSessionError):
self.cli_commit()
self.cli_delete(base_path + svc_path + [svc, 'ttl'])
# commit changes
self.cli_commit()
# Check the generating config parameters
ddclient_conf = cmd(f'sudo cat {DDCLIENT_CONF}')
# default value 300 seconds
self.assertIn(f'daemon=300', ddclient_conf)
self.assertIn(f'usev4=ifv4', ddclient_conf)
self.assertIn(f'ifv4={interface}', ddclient_conf)
self.assertIn(f'password={password}', ddclient_conf)
for opt in details.keys():
if opt == 'username':
login = details[opt]
self.assertIn(f'login={login}', ddclient_conf)
else:
tmp = details[opt]
self.assertIn(f'{opt}={tmp}', ddclient_conf)
# IPv6 only DDNS service configuration
def test_02_dyndns_service_ipv6(self):
timeout = '60'
svc_path = ['address', interface, 'service', 'dynv6']
proto = 'dyndns2'
ip_version = 'ipv6'
wait_time = '600'
expiry_time_good = '3600'
expiry_time_bad = '360'
self.cli_set(base_path + ['timeout', timeout])
self.cli_set(base_path + svc_path + ['ip-version', ip_version])
self.cli_set(base_path + svc_path + ['protocol', proto])
self.cli_set(base_path + svc_path + ['server', server])
self.cli_set(base_path + svc_path + ['username', username])
self.cli_set(base_path + svc_path + ['password', password])
self.cli_set(base_path + svc_path + ['host-name', hostname])
self.cli_set(base_path + svc_path + ['wait-time', wait_time])
# expiry-time must be greater than wait-time, exception is raised otherwise
self.cli_set(base_path + svc_path + ['expiry-time', expiry_time_bad])
with self.assertRaises(ConfigSessionError):
self.cli_commit()
self.cli_set(base_path + svc_path + ['expiry-time', expiry_time_good])
# commit changes
self.cli_commit()
# Check the generating config parameters
ddclient_conf = cmd(f'sudo cat {DDCLIENT_CONF}')
self.assertIn(f'daemon={timeout}', ddclient_conf)
self.assertIn(f'usev6=ifv6', ddclient_conf)
self.assertIn(f'ifv6={interface}', ddclient_conf)
self.assertIn(f'protocol={proto}', ddclient_conf)
self.assertIn(f'server={server}', ddclient_conf)
self.assertIn(f'login={username}', ddclient_conf)
self.assertIn(f'password={password}', ddclient_conf)
self.assertIn(f'min-interval={wait_time}', ddclient_conf)
self.assertIn(f'max-interval={expiry_time_good}', ddclient_conf)
# IPv4+IPv6 dual DDNS service configuration
def test_03_dyndns_service_dual_stack(self):
svc_path = ['address', interface, 'service']
services = {'cloudflare': {'protocol': 'cloudflare', 'zone': zone},
'freedns': {'protocol': 'freedns', 'username': username},
'google': {'protocol': 'googledomains', 'username': username}}
ip_version = 'both'
for name, details in services.items():
self.cli_set(base_path + svc_path + [name, 'host-name', hostname])
self.cli_set(base_path + svc_path + [name, 'password', password])
for opt, value in details.items():
self.cli_set(base_path + svc_path + [name, opt, value])
# Dual stack is supported by 'cloudfare' and 'freedns' but not 'googledomains'
# exception is raised for unsupported ones
self.cli_set(base_path + svc_path + [name, 'ip-version', ip_version])
if details['protocol'] not in ['cloudflare', 'freedns']:
with self.assertRaises(ConfigSessionError):
self.cli_commit()
self.cli_delete(base_path + svc_path + [name, 'ip-version'])
# commit changes
self.cli_commit()
# Check the generating config parameters
ddclient_conf = cmd(f'sudo cat {DDCLIENT_CONF}')
if details['protocol'] not in ['cloudflare', 'freedns']:
self.assertIn(f'usev4=ifv4', ddclient_conf)
self.assertIn(f'ifv4={interface}', ddclient_conf)
else:
self.assertIn(f'usev4=ifv4', ddclient_conf)
self.assertIn(f'usev6=ifv6', ddclient_conf)
self.assertIn(f'ifv4={interface}', ddclient_conf)
self.assertIn(f'ifv6={interface}', ddclient_conf)
self.assertIn(f'password={password}', ddclient_conf)
for opt in details.keys():
if opt == 'username':
login = details[opt]
self.assertIn(f'login={login}', ddclient_conf)
else:
tmp = details[opt]
self.assertIn(f'{opt}={tmp}', ddclient_conf)
def test_04_dyndns_rfc2136(self):
# Check if DDNS service can be configured and runs
svc_path = ['address', interface, 'rfc2136', 'vyos']
with tempfile.NamedTemporaryFile(prefix='/config/auth/') as key_file:
key_file.write(b'S3cretKey')
self.cli_set(base_path + svc_path + ['server', server])
self.cli_set(base_path + svc_path + ['zone', zone])
self.cli_set(base_path + svc_path + ['key', key_file.name])
self.cli_set(base_path + svc_path + ['ttl', ttl])
self.cli_set(base_path + svc_path + ['host-name', hostname])
# commit changes
self.cli_commit()
# Check some generating config parameters
ddclient_conf = cmd(f'sudo cat {DDCLIENT_CONF}')
self.assertIn(f'use=if', ddclient_conf)
self.assertIn(f'if={interface}', ddclient_conf)
self.assertIn(f'protocol=nsupdate', ddclient_conf)
self.assertIn(f'server={server}', ddclient_conf)
self.assertIn(f'zone={zone}', ddclient_conf)
self.assertIn(f'password={key_file.name}', ddclient_conf)
self.assertIn(f'ttl={ttl}', ddclient_conf)
def test_05_dyndns_hostname(self):
# Check if DDNS service can be configured and runs
svc_path = ['address', interface, 'service', 'namecheap']
proto = 'namecheap'
hostnames = ['@', 'www', hostname, f'@.{hostname}']
for name in hostnames:
self.cli_set(base_path + svc_path + ['protocol', proto])
self.cli_set(base_path + svc_path + ['server', server])
self.cli_set(base_path + svc_path + ['username', username])
self.cli_set(base_path + svc_path + ['password', password])
self.cli_set(base_path + svc_path + ['host-name', name])
# commit changes
self.cli_commit()
# Check the generating config parameters
ddclient_conf = cmd(f'sudo cat {DDCLIENT_CONF}')
self.assertIn(f'protocol={proto}', ddclient_conf)
self.assertIn(f'server={server}', ddclient_conf)
self.assertIn(f'login={username}', ddclient_conf)
self.assertIn(f'password={password}', ddclient_conf)
self.assertIn(f'{name}', ddclient_conf)
def test_06_dyndns_vrf(self):
vrf_name = f'vyos-test-{"".join(random.choices(string.ascii_letters + string.digits, k=5))}'
svc_path = ['address', interface, 'service', 'cloudflare']
self.cli_set(['vrf', 'name', vrf_name, 'table', '12345'])
self.cli_set(base_path + ['vrf', vrf_name])
self.cli_set(base_path + svc_path + ['protocol', 'cloudflare'])
self.cli_set(base_path + svc_path + ['host-name', hostname])
self.cli_set(base_path + svc_path + ['zone', zone])
self.cli_set(base_path + svc_path + ['password', password])
# commit changes
self.cli_commit()
# Check for process in VRF
systemd_override = cmd(f'cat {DDCLIENT_SYSTEMD_UNIT}')
self.assertIn(f'ExecStart=ip vrf exec {vrf_name} /usr/bin/ddclient -file {DDCLIENT_CONF}',
systemd_override)
# Check for process in VRF
proc = cmd(f'ip vrf pids {vrf_name}')
self.assertIn(DDCLIENT_PNAME, proc)
# Cleanup VRF
self.cli_delete(['vrf', 'name', vrf_name])
if __name__ == '__main__':
unittest.main(verbosity=2)
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