diff --git a/data/templates/dns-dynamic/ddclient.conf.j2 b/data/templates/dns-dynamic/ddclient.conf.j2
index 5905b19ea..6e77abdb5 100644
--- a/data/templates/dns-dynamic/ddclient.conf.j2
+++ b/data/templates/dns-dynamic/ddclient.conf.j2
@@ -1,75 +1,72 @@
{% macro render_config(host, address, web_options, ip_suffixes=['']) %}
{# Address: use=if, if=ethX, usev6=ifv6, ifv6=ethX, usev6=webv6, webv6=https://v6.example.com #}
{% for ipv in ip_suffixes %}
use{{ ipv }}={{ address if address == 'web' else 'if' }}{{ ipv }}, \
{% if address == 'web' %}
{% if web_options.url is vyos_defined %}
web{{ ipv }}={{ web_options.url }}, \
{% endif %}
{% if web_options.skip is vyos_defined %}
web-skip{{ ipv }}='{{ web_options.skip }}', \
{% endif %}
{% else %}
if{{ ipv }}={{ address }}, \
{% endif %}
{% endfor %}
{# Other service options #}
-{% for k,v in kwargs.items() %}
-{% if v is vyos_defined %}
-{{ k }}={{ v }}{{ ',' if not loop.last }} \
-{% endif %}
+{% for k,v in kwargs.items() if v is vyos_defined %}
+{{ k | replace('_', '-') }}={{ v }}{{ ',' if not loop.last }} \
{% endfor %}
{# Actual hostname for the service #}
{{ host }}
{% endmacro %}
### Autogenerated by dns_dynamic.py ###
daemon={{ timeout }}
syslog=yes
ssl=yes
pid={{ config_file | replace('.conf', '.pid') }}
cache={{ config_file | replace('.conf', '.cache') }}
{# ddclient default (web=dyndns) doesn't support ssl and results in process lockup #}
web=googledomains
{# ddclient default (use=ip) results in confusing warning message in log #}
use=no
{% if address is vyos_defined %}
{% for address, service_cfg in address.items() %}
{% if service_cfg.rfc2136 is vyos_defined %}
{% for name, config in service_cfg.rfc2136.items() %}
{% if config.description is vyos_defined %}
# {{ config.description }}
{% endif %}
{% for host in config.host_name if config.host_name is vyos_defined %}
# RFC2136 dynamic DNS configuration for {{ name }}: [{{ config.zone }}, {{ host }}]
{# Don't append 'new-style' compliant suffix ('usev4', 'usev6', 'ifv4', 'ifv6' etc.)
to the properties since 'nsupdate' doesn't support that yet. #}
{{ render_config(host, address, service_cfg.web_options,
protocol='nsupdate', server=config.server, zone=config.zone,
password=config.key, ttl=config.ttl) }}
-
{% endfor %}
{% endfor %}
{% endif %}
{% if service_cfg.service is vyos_defined %}
{% for name, config in service_cfg.service.items() %}
{% if config.description is vyos_defined %}
# {{ config.description }}
{% endif %}
{% for host in config.host_name if config.host_name is vyos_defined %}
{% set ip_suffixes = ['v4', 'v6'] if config.ip_version == 'both'
else [config.ip_version[2:]] %}
# Web service dynamic DNS configuration for {{ name }}: [{{ config.protocol }}, {{ host }}]
{{ render_config(host, address, service_cfg.web_options, ip_suffixes,
protocol=config.protocol, server=config.server, zone=config.zone,
- login=config.username, password=config.password, ttl=config.ttl) }}
-
+ login=config.username, password=config.password, ttl=config.ttl,
+ min_interval=config.wait_time, max_interval=config.expiry_time) }}
{% endfor %}
{% endfor %}
{% endif %}
{% endfor %}
{% endif %}
diff --git a/interface-definitions/dns-dynamic.xml.in b/interface-definitions/dns-dynamic.xml.in
index ba7f426c1..723223f1c 100644
--- a/interface-definitions/dns-dynamic.xml.in
+++ b/interface-definitions/dns-dynamic.xml.in
@@ -1,156 +1,158 @@
<?xml version="1.0"?>
<interfaceDefinition>
<node name="service">
<children>
<node name="dns">
<properties>
<help>Domain Name System (DNS) related services</help>
</properties>
<children>
<node name="dynamic" owner="${vyos_conf_scripts_dir}/dns_dynamic.py">
<properties>
<help>Dynamic DNS</help>
</properties>
<children>
<tagNode name="address">
<properties>
<help>Obtain IP address to send Dynamic DNS update for</help>
<valueHelp>
<format>txt</format>
<description>Use interface to obtain the IP address</description>
</valueHelp>
<valueHelp>
<format>web</format>
<description>Use HTTP(S) web request to obtain the IP address</description>
</valueHelp>
<completionHelp>
<script>${vyos_completion_dir}/list_interfaces</script>
<list>web</list>
</completionHelp>
<constraint>
#include <include/constraint/interface-name.xml.i>
<regex>web</regex>
</constraint>
</properties>
<children>
<node name="web-options">
<properties>
<help>Options when using HTTP(S) web request to obtain the IP address</help>
</properties>
<children>
#include <include/url.xml.i>
<leafNode name="skip">
<properties>
<help>Pattern to skip from the HTTP(S) respose</help>
<valueHelp>
<format>txt</format>
<description>Pattern to skip from the HTTP(S) respose to extract the external IP address</description>
</valueHelp>
</properties>
</leafNode>
</children>
</node>
<tagNode name="rfc2136">
<properties>
<help>RFC2136 nsupdate configuration</help>
<valueHelp>
<format>txt</format>
<description>RFC2136 nsupdate service name</description>
</valueHelp>
</properties>
<children>
#include <include/generic-description.xml.i>
#include <include/dns/dynamic-service-host-name-server.xml.i>
+ #include <include/dns/dynamic-service-wait-expiry-time.xml.i>
<leafNode name="key">
<properties>
<help>File containing the TSIG secret key shared with remote DNS server</help>
<valueHelp>
<format>filename</format>
<description>File in /config/auth directory</description>
</valueHelp>
<constraint>
<validator name="file-path" argument="--strict --parent-dir /config/auth"/>
</constraint>
</properties>
</leafNode>
#include <include/dns/time-to-live.xml.i>
#include <include/dns/dynamic-service-zone.xml.i>
</children>
</tagNode>
<tagNode name="service">
<properties>
<help>Dynamic DNS configuration</help>
<valueHelp>
<format>txt</format>
<description>Dynamic DNS service name</description>
</valueHelp>
</properties>
<children>
#include <include/generic-description.xml.i>
#include <include/dns/dynamic-service-host-name-server.xml.i>
+ #include <include/dns/dynamic-service-wait-expiry-time.xml.i>
#include <include/generic-username.xml.i>
#include <include/generic-password.xml.i>
#include <include/dns/time-to-live.xml.i>
<leafNode name="protocol">
<properties>
<help>ddclient protocol used for Dynamic DNS service</help>
<completionHelp>
<script>${vyos_completion_dir}/list_ddclient_protocols.sh</script>
</completionHelp>
<constraint>
<validator name="ddclient-protocol"/>
</constraint>
</properties>
</leafNode>
#include <include/dns/dynamic-service-zone.xml.i>
<leafNode name="ip-version">
<properties>
<help>IP address version to use</help>
<valueHelp>
<format>_ipv4</format>
<description>Use only IPv4 address</description>
</valueHelp>
<valueHelp>
<format>_ipv6</format>
<description>Use only IPv6 address</description>
</valueHelp>
<valueHelp>
<format>both</format>
<description>Use both IPv4 and IPv6 address</description>
</valueHelp>
<completionHelp>
<list>ipv4 ipv6 both</list>
</completionHelp>
<constraint>
<regex>(ipv[46]|both)</regex>
</constraint>
<constraintErrorMessage>IP Version must be literal 'ipv4', 'ipv6' or 'both'</constraintErrorMessage>
</properties>
<defaultValue>ipv4</defaultValue>
</leafNode>
</children>
</tagNode>
</children>
</tagNode>
<leafNode name="timeout">
<properties>
<help>Time in seconds to wait between DNS updates</help>
<valueHelp>
<format>u32:60-3600</format>
<description>Time in seconds</description>
</valueHelp>
<constraint>
<validator name="numeric" argument="--range 60-3600"/>
</constraint>
<constraintErrorMessage>Timeout must be between 60 and 3600 seconds</constraintErrorMessage>
</properties>
<defaultValue>300</defaultValue>
</leafNode>
#include <include/interface/vrf.xml.i>
</children>
</node>
</children>
</node>
</children>
</node>
</interfaceDefinition>
diff --git a/interface-definitions/include/dns/dynamic-service-wait-expiry-time.xml.i b/interface-definitions/include/dns/dynamic-service-wait-expiry-time.xml.i
new file mode 100644
index 000000000..866690cbe
--- /dev/null
+++ b/interface-definitions/include/dns/dynamic-service-wait-expiry-time.xml.i
@@ -0,0 +1,28 @@
+<!-- include start from dns/dynamic-service-wait-expiry-time.xml.i -->
+<leafNode name="wait-time">
+ <properties>
+ <help>Time in seconds to wait between update attempts</help>
+ <valueHelp>
+ <format>u32:60-86400</format>
+ <description>Time in seconds</description>
+ </valueHelp>
+ <constraint>
+ <validator name="numeric" argument="--range 60-86400"/>
+ </constraint>
+ <constraintErrorMessage>Wait time must be between 60 and 86400 seconds</constraintErrorMessage>
+ </properties>
+</leafNode>
+<leafNode name="expiry-time">
+ <properties>
+ <help>Time in seconds for the hostname to be marked expired in cache</help>
+ <valueHelp>
+ <format>u32:300-2160000</format>
+ <description>Time in seconds</description>
+ </valueHelp>
+ <constraint>
+ <validator name="numeric" argument="--range 300-2160000"/>
+ </constraint>
+ <constraintErrorMessage>Expiry time must be between 300 and 2160000 seconds</constraintErrorMessage>
+ </properties>
+</leafNode>
+<!-- include end -->
diff --git a/smoketest/scripts/cli/test_service_dns_dynamic.py b/smoketest/scripts/cli/test_service_dns_dynamic.py
index 66dcde434..acabc0070 100755
--- a/smoketest/scripts/cli/test_service_dns_dynamic.py
+++ b/smoketest/scripts/cli/test_service_dns_dynamic.py
@@ -1,264 +1,276 @@
#!/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)
diff --git a/src/conf_mode/dns_dynamic.py b/src/conf_mode/dns_dynamic.py
index 8a438cf6f..874c4b689 100755
--- a/src/conf_mode/dns_dynamic.py
+++ b/src/conf_mode/dns_dynamic.py
@@ -1,148 +1,151 @@
#!/usr/bin/env python3
#
# Copyright (C) 2018-2023 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
from sys import exit
from vyos.config import Config
from vyos.configverify import verify_interface_exists
from vyos.template import render
from vyos.utils.process import call
from vyos import ConfigError
from vyos import airbag
airbag.enable()
config_file = r'/run/ddclient/ddclient.conf'
systemd_override = r'/run/systemd/system/ddclient.service.d/override.conf'
# Protocols that require zone
zone_necessary = ['cloudflare', 'godaddy', 'hetzner', 'gandi', 'nfsn']
# Protocols that do not require username
username_unnecessary = ['1984', 'cloudflare', 'cloudns', 'duckdns', 'freemyip', 'hetzner', 'keysystems', 'njalla']
# Protocols that support TTL
ttl_supported = ['cloudflare', 'gandi', 'hetzner', 'dnsexit', 'godaddy', 'nfsn']
# Protocols that support both IPv4 and IPv6
dualstack_supported = ['cloudflare', 'dyndns2', 'freedns', 'njalla']
# dyndns2 protocol in ddclient honors dual stack for selective servers
# because of the way it is implemented in ddclient
dyndns_dualstack_servers = ['members.dyndns.org', 'dynv6.com']
def get_config(config=None):
if config:
conf = config
else:
conf = Config()
base = ['service', 'dns', 'dynamic']
if not conf.exists(base):
return None
dyndns = conf.get_config_dict(base, key_mangling=('-', '_'),
no_tag_node_value_mangle=True,
get_first_key=True,
with_recursive_defaults=True)
dyndns['config_file'] = config_file
return dyndns
def verify(dyndns):
# bail out early - looks like removal from running config
if not dyndns or 'address' not in dyndns:
return None
for address in dyndns['address']:
# If dyndns address is an interface, ensure it exists
if address != 'web':
verify_interface_exists(address)
# RFC2136 - configuration validation
if 'rfc2136' in dyndns['address'][address]:
for config in dyndns['address'][address]['rfc2136'].values():
for field in ['host_name', 'zone', 'server', 'key']:
if field not in config:
raise ConfigError(f'"{field.replace("_", "-")}" is required for RFC2136 '
f'based Dynamic DNS service on "{address}"')
# Dynamic DNS service provider - configuration validation
if 'service' in dyndns['address'][address]:
for service, config in dyndns['address'][address]['service'].items():
error_msg = f'is required for Dynamic DNS service "{service}" on "{address}"'
for field in ['host_name', 'password', 'protocol']:
if field not in config:
raise ConfigError(f'"{field.replace("_", "-")}" {error_msg}')
if config['protocol'] in zone_necessary and 'zone' not in config:
raise ConfigError(f'"zone" {error_msg}')
if config['protocol'] not in zone_necessary and 'zone' in config:
raise ConfigError(f'"{config["protocol"]}" does not support "zone"')
if config['protocol'] not in username_unnecessary and 'username' not in config:
raise ConfigError(f'"username" {error_msg}')
if config['protocol'] not in ttl_supported and 'ttl' in config:
raise ConfigError(f'"{config["protocol"]}" does not support "ttl"')
if config['ip_version'] == 'both':
if config['protocol'] not in dualstack_supported:
raise ConfigError(f'"{config["protocol"]}" does not support '
f'both IPv4 and IPv6 at the same time')
# dyndns2 protocol in ddclient honors dual stack only for dyn.com (dyndns.org)
if config['protocol'] == 'dyndns2' and 'server' in config and config['server'] not in dyndns_dualstack_servers:
raise ConfigError(f'"{config["protocol"]}" does not support '
f'both IPv4 and IPv6 at the same time for "{config["server"]}"')
+ if {'wait_time', 'expiry_time'} <= config.keys() and int(config['expiry_time']) < int(config['wait_time']):
+ raise ConfigError(f'"expiry-time" must be greater than "wait-time"')
+
return None
def generate(dyndns):
# bail out early - looks like removal from running config
if not dyndns or 'address' not in dyndns:
return None
render(config_file, 'dns-dynamic/ddclient.conf.j2', dyndns, permission=0o600)
render(systemd_override, 'dns-dynamic/override.conf.j2', dyndns)
return None
def apply(dyndns):
systemd_service = 'ddclient.service'
# Reload systemd manager configuration
call('systemctl daemon-reload')
# bail out early - looks like removal from running config
if not dyndns or 'address' not in dyndns:
call(f'systemctl stop {systemd_service}')
if os.path.exists(config_file):
os.unlink(config_file)
else:
call(f'systemctl reload-or-restart {systemd_service}')
return None
if __name__ == '__main__':
try:
c = get_config()
verify(c)
generate(c)
apply(c)
except ConfigError as e:
print(e)
exit(1)