diff options
Diffstat (limited to 'src/conf_mode/service_ipoe-server.py')
| -rwxr-xr-x | src/conf_mode/service_ipoe-server.py | 300 |
1 files changed, 300 insertions, 0 deletions
diff --git a/src/conf_mode/service_ipoe-server.py b/src/conf_mode/service_ipoe-server.py new file mode 100755 index 000000000..b53692d37 --- /dev/null +++ b/src/conf_mode/service_ipoe-server.py @@ -0,0 +1,300 @@ +#!/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 +import re + +from copy import deepcopy +from stat import S_IRUSR, S_IWUSR, S_IRGRP +from sys import exit + +from vyos.config import Config +from vyos.template import render +from vyos.util import call, get_half_cpus +from vyos.validate import is_ipv4 +from vyos import ConfigError + +ipoe_conf = '/run/accel-pppd/ipoe.conf' +ipoe_chap_secrets = '/run/accel-pppd/ipoe.chap-secrets' + +default_config_data = { + 'auth_mode': 'local', + 'auth_interfaces': [], + 'chap_secrets_file': ipoe_chap_secrets, # used in Jinja2 template + 'interfaces': [], + 'dnsv4': [], + 'dnsv6': [], + 'client_ipv6_pool': [], + 'client_ipv6_delegate_prefix': [], + 'radius_server': [], + 'radius_acct_tmo': '3', + 'radius_max_try': '3', + 'radius_timeout': '3', + 'radius_nas_id': '', + 'radius_nas_ip': '', + 'radius_source_address': '', + 'radius_shaper_attr': '', + 'radius_shaper_vendor': '', + 'radius_dynamic_author': '', + 'thread_cnt': get_half_cpus() +} + +def get_config(): + conf = Config() + base_path = ['service', 'ipoe-server'] + if not conf.exists(base_path): + return None + + conf.set_level(base_path) + ipoe = deepcopy(default_config_data) + + for interface in conf.list_nodes(['interface']): + tmp = { + 'mode': 'L2', + 'name': interface, + 'shared': '1', + # may need a config option, can be dhcpv4 or up for unclassified pkts + 'sess_start': 'dhcpv4', + 'range': None, + 'ifcfg': '1', + 'vlan_mon': [] + } + + conf.set_level(base_path + ['interface', interface]) + + if conf.exists(['network-mode']): + tmp['mode'] = conf.return_value(['network-mode']) + + if conf.exists(['network']): + mode = conf.return_value(['network']) + if mode == 'vlan': + tmp['shared'] = '0' + + if conf.exists(['vlan-id']): + tmp['vlan_mon'] += conf.return_values(['vlan-id']) + + if conf.exists(['vlan-range']): + tmp['vlan_mon'] += conf.return_values(['vlan-range']) + + if conf.exists(['client-subnet']): + tmp['range'] = conf.return_value(['client-subnet']) + + ipoe['interfaces'].append(tmp) + + conf.set_level(base_path) + + if conf.exists(['name-server']): + for name_server in conf.return_values(['name-server']): + if is_ipv4(name_server): + ipoe['dnsv4'].append(name_server) + else: + ipoe['dnsv6'].append(name_server) + + if conf.exists(['authentication', 'mode']): + ipoe['auth_mode'] = conf.return_value(['authentication', 'mode']) + + if conf.exists(['authentication', 'interface']): + for interface in conf.list_nodes(['authentication', 'interface']): + tmp = { + 'name': interface, + 'mac': [] + } + for client in conf.list_nodes(base_path + ['authentication', 'interface', interface, 'mac-address']): + mac = { + 'address': mac, + 'rate_download': '', + 'rate_upload': '', + 'vlan_id': '' + } + conf.set_level(base_path + ['authentication', 'interface', interface, 'mac-address', client]) + + if conf.exists(['rate-limit', 'download']): + mac['rate_download'] = conf.return_value(['rate-limit', 'download']) + + if conf.exists(['rate-limit', 'upload']): + mac['rate_upload'] = conf.return_value(['rate-limit', 'upload']) + + if conf.exists(['vlan-id']): + mac['vlan'] = conf.return_value(['vlan-id']) + + tmp['mac'].append(mac) + + ipoe['auth_interfaces'].append(tmp) + + # + # authentication mode radius servers and settings + if conf.exists(['authentication', 'mode', 'radius']): + for server in conf.list_nodes(['authentication', 'radius', 'server']): + radius = { + 'server' : server, + 'key' : '', + 'fail_time' : 0, + 'port' : '1812' + } + + conf.set_level(base_path + ['authentication', 'radius', 'server', server]) + + if conf.exists(['fail-time']): + radius['fail-time'] = conf.return_value(['fail-time']) + + if conf.exists(['port']): + radius['port'] = conf.return_value(['port']) + + if conf.exists(['key']): + radius['key'] = conf.return_value(['key']) + + if not conf.exists(['disable']): + ipoe['radius_server'].append(radius) + + # + # advanced radius-setting + conf.set_level(base_path + ['authentication', 'radius']) + if conf.exists(['acct-timeout']): + ipoe['radius_acct_tmo'] = conf.return_value(['acct-timeout']) + + if conf.exists(['max-try']): + ipoe['radius_max_try'] = conf.return_value(['max-try']) + + if conf.exists(['timeout']): + ipoe['radius_timeout'] = conf.return_value(['timeout']) + + if conf.exists(['nas-identifier']): + ipoe['radius_nas_id'] = conf.return_value(['nas-identifier']) + + if conf.exists(['nas-ip-address']): + ipoe['radius_nas_ip'] = conf.return_value(['nas-ip-address']) + + if conf.exists(['source-address']): + ipoe['radius_source_address'] = conf.return_value(['source-address']) + + # Dynamic Authorization Extensions (DOA)/Change Of Authentication (COA) + if conf.exists(['dynamic-author']): + dae = { + 'port' : '', + 'server' : '', + 'key' : '' + } + + if conf.exists(['dynamic-author', 'server']): + dae['server'] = conf.return_value(['dynamic-author', 'server']) + + if conf.exists(['dynamic-author', 'port']): + dae['port'] = conf.return_value(['dynamic-author', 'port']) + + if conf.exists(['dynamic-author', 'key']): + dae['key'] = conf.return_value(['dynamic-author', 'key']) + + ipoe['radius_dynamic_author'] = dae + + + conf.set_level(base_path) + if conf.exists(['client-ipv6-pool', 'prefix']): + for prefix in conf.list_nodes(['client-ipv6-pool', 'prefix']): + tmp = { + 'prefix': prefix, + 'mask': '64' + } + + if conf.exists(['client-ipv6-pool', 'prefix', prefix, 'mask']): + tmp['mask'] = conf.return_value(['client-ipv6-pool', 'prefix', prefix, 'mask']) + + ipoe['client_ipv6_pool'].append(tmp) + + + if conf.exists(['client-ipv6-pool', 'delegate']): + for prefix in conf.list_nodes(['client-ipv6-pool', 'delegate']): + tmp = { + 'prefix': prefix, + 'mask': '' + } + + if conf.exists(['client-ipv6-pool', 'delegate', prefix, 'delegation-prefix']): + tmp['mask'] = conf.return_value(['client-ipv6-pool', 'delegate', prefix, 'delegation-prefix']) + + ipoe['client_ipv6_delegate_prefix'].append(tmp) + + return ipoe + + +def verify(ipoe): + if not ipoe: + return None + + if not ipoe['interfaces']: + raise ConfigError('No IPoE interface configured') + + for interface in ipoe['interfaces']: + if not interface['range']: + raise ConfigError(f'No IPoE client subnet defined on interface "{ interface }"') + + if len(ipoe['dnsv4']) > 2: + raise ConfigError('Not more then two IPv4 DNS name-servers can be configured') + + if len(ipoe['dnsv6']) > 3: + raise ConfigError('Not more then three IPv6 DNS name-servers can be configured') + + if ipoe['auth_mode'] == 'radius': + if len(ipoe['radius_server']) == 0: + raise ConfigError('RADIUS authentication requires at least one server') + + for radius in ipoe['radius_server']: + if not radius['key']: + server = radius['server'] + raise ConfigError(f'Missing RADIUS secret key for server "{ server }"') + + if ipoe['client_ipv6_delegate_prefix'] and not ipoe['client_ipv6_pool']: + raise ConfigError('IPoE IPv6 deletate-prefix requires IPv6 prefix to be configured!') + + return None + + +def generate(ipoe): + if not ipoe: + return None + + render(ipoe_conf, 'accel-ppp/ipoe.config.tmpl', ipoe, trim_blocks=True) + + if ipoe['auth_mode'] == 'local': + render(ipoe_chap_secrets, 'accel-ppp/chap-secrets.ipoe.tmpl', ipoe) + os.chmod(ipoe_chap_secrets, S_IRUSR | S_IWUSR | S_IRGRP) + + else: + if os.path.exists(ipoe_chap_secrets): + os.unlink(ipoe_chap_secrets) + + return None + + +def apply(ipoe): + if ipoe == None: + call('systemctl stop accel-ppp@ipoe.service') + for file in [ipoe_conf, ipoe_chap_secrets]: + if os.path.exists(file): + os.unlink(file) + + return None + + call('systemctl restart accel-ppp@ipoe.service') + +if __name__ == '__main__': + try: + c = get_config() + verify(c) + generate(c) + apply(c) + except ConfigError as e: + print(e) + exit(1) |