#!/usr/bin/env python3 # # Copyright (C) 2018-2020 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 os from sys import exit from vyos.config import Config from vyos.configdict import get_accel_dict from vyos.configverify import verify_accel_ppp_base_service from vyos.template import render from vyos.util import call from vyos.util import dict_search from vyos.util import get_interface_config from vyos.range_regex import range_to_regex from vyos import ConfigError from vyos import airbag airbag.enable() pppoe_conf = r'/run/accel-pppd/pppoe.conf' pppoe_chap_secrets = r'/run/accel-pppd/pppoe.chap-secrets' def get_config(config=None): if config: conf = config else: conf = Config() base = ['service', 'pppoe-server'] if not conf.exists(base): return None # retrieve common dictionary keys pppoe = get_accel_dict(conf, base, pppoe_chap_secrets) return pppoe def verify(pppoe): if not pppoe: return None verify_accel_ppp_base_service(pppoe) if 'wins_server' in pppoe and len(pppoe['wins_server']) > 2: raise ConfigError('Not more then two IPv4 WINS name-servers can be configured') if 'interface' not in pppoe: raise ConfigError('At least one listen interface must be defined!') # Check is interface exists in the system for iface in pppoe['interface']: if not get_interface_config(iface): raise ConfigError(f'Interface {iface} does not exist!') # local ippool and gateway settings config checks if not (dict_search('client_ip_pool.subnet', pppoe) or (dict_search('client_ip_pool.start', pppoe) and dict_search('client_ip_pool.stop', pppoe))): print('Warning: No PPPoE client pool defined') if dict_search('authentication.radius.dynamic_author.server', pppoe): if not dict_search('authentication.radius.dynamic_author.key', pppoe): raise ConfigError('DA/CoE server key required!') return None def generate(pppoe): if not pppoe: return None # Generate special regex for dynamic interfaces for iface, iface_options in pppoe['interface'].items(): if 'vlan_range' in iface_options: pppoe['interface'][iface]['regex'] = [] for vlan_range in iface_options['vlan_range']: pppoe['interface'][iface]['regex'].append(range_to_regex(vlan_range)) render(pppoe_conf, 'accel-ppp/pppoe.config.tmpl', pppoe) if dict_search('authentication.mode', pppoe) == 'local': render(pppoe_chap_secrets, 'accel-ppp/chap-secrets.config_dict.tmpl', pppoe, permission=0o640) else: if os.path.exists(pppoe_chap_secrets): os.unlink(pppoe_chap_secrets) return None def apply(pppoe): if not pppoe: call('systemctl stop accel-ppp@pppoe.service') for file in [pppoe_conf, pppoe_chap_secrets]: if os.path.exists(file): os.unlink(file) return None call('systemctl restart accel-ppp@pppoe.service') if __name__ == '__main__': try: c = get_config() verify(c) generate(c) apply(c) except ConfigError as e: print(e) exit(1)