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Diffstat (limited to 'src/conf_mode/dns_dynamic.py')
| -rwxr-xr-x | src/conf_mode/dns_dynamic.py | 151 |
1 files changed, 0 insertions, 151 deletions
diff --git a/src/conf_mode/dns_dynamic.py b/src/conf_mode/dns_dynamic.py deleted file mode 100755 index 874c4b689..000000000 --- a/src/conf_mode/dns_dynamic.py +++ /dev/null @@ -1,151 +0,0 @@ -#!/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) |