diff options
Diffstat (limited to 'src/conf_mode')
| -rwxr-xr-x | src/conf_mode/accel_l2tp.py | 397 | ||||
| -rwxr-xr-x | src/conf_mode/vpn_l2tp.py | 398 | ||||
| -rwxr-xr-x | src/conf_mode/vpn_sstp.py | 112 |
3 files changed, 430 insertions, 477 deletions
diff --git a/src/conf_mode/accel_l2tp.py b/src/conf_mode/accel_l2tp.py deleted file mode 100755 index 4ca5a858a..000000000 --- a/src/conf_mode/accel_l2tp.py +++ /dev/null @@ -1,397 +0,0 @@ -#!/usr/bin/env python3 -# -# Copyright (C) 2019-2020 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 sys -import os -import re -import jinja2 -import socket -import time - -from jinja2 import FileSystemLoader, Environment - -from vyos.config import Config -from vyos.defaults import directories as vyos_data_dir -from vyos import ConfigError -from vyos.util import run - - -pidfile = r'/var/run/accel_l2tp.pid' -l2tp_cnf_dir = r'/etc/accel-ppp/l2tp' -chap_secrets = l2tp_cnf_dir + '/chap-secrets' -l2tp_conf = l2tp_cnf_dir + '/l2tp.config' -# accel-pppd -d -c /etc/accel-ppp/l2tp/l2tp.config -p /var/run/accel_l2tp.pid - -# config path creation -if not os.path.exists(l2tp_cnf_dir): - os.makedirs(l2tp_cnf_dir) - -### -# inline helper functions -### -# depending on hw and threads, daemon needs a little to start -# if it takes longer than 100 * 0.5 secs, exception is being raised -# not sure if that's the best way to check it, but it worked so far quite well -### - - -def chk_con(): - cnt = 0 - s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) - while True: - try: - s.connect(("127.0.0.1", 2004)) - break - except ConnectionRefusedError: - time.sleep(0.5) - cnt += 1 - if cnt == 100: - raise("failed to start l2tp server") - break - - -def _accel_cmd(command): - return run(f'/usr/bin/accel-cmd -p 2004 {command}') - -### -# inline helper functions end -### - - -def get_config(): - c = Config() - if not c.exists('vpn l2tp remote-access '): - return None - - c.set_level('vpn l2tp remote-access') - config_data = { - 'authentication': { - 'mode': 'local', - 'local-users': { - }, - 'radiussrv': {}, - 'radiusopt': {}, - 'auth_proto': [], - 'mppe': 'prefer' - }, - 'outside_addr': '', - 'gateway_address': '10.255.255.0', - 'dns': [], - 'dnsv6': [], - 'wins': [], - 'client_ip_pool': None, - 'client_ip_subnets': [], - 'client_ipv6_pool': {}, - 'mtu': '1436', - 'ip6_column': '', - 'ip6_dp_column': '', - 'ppp_options': {}, - } - - ### general options ### - - if c.exists('dns-servers server-1'): - config_data['dns'].append(c.return_value('dns-servers server-1')) - if c.exists('dns-servers server-2'): - config_data['dns'].append(c.return_value('dns-servers server-2')) - if c.exists('dnsv6-servers'): - for dns6_server in c.return_values('dnsv6-servers'): - config_data['dnsv6'].append(dns6_server) - if c.exists('wins-servers server-1'): - config_data['wins'].append(c.return_value('wins-servers server-1')) - if c.exists('wins-servers server-2'): - config_data['wins'].append(c.return_value('wins-servers server-2')) - if c.exists('outside-address'): - config_data['outside_addr'] = c.return_value('outside-address') - - # auth local - if c.exists('authentication mode local'): - if c.exists('authentication local-users username'): - for usr in c.list_nodes('authentication local-users username'): - config_data['authentication']['local-users'].update( - { - usr: { - 'passwd': '', - 'state': 'enabled', - 'ip': '*', - 'upload': None, - 'download': None - } - } - ) - - if c.exists('authentication local-users username ' + usr + ' password'): - config_data['authentication']['local-users'][usr]['passwd'] = c.return_value( - 'authentication local-users username ' + usr + ' password') - if c.exists('authentication local-users username ' + usr + ' disable'): - config_data['authentication']['local-users'][usr]['state'] = 'disable' - if c.exists('authentication local-users username ' + usr + ' static-ip'): - config_data['authentication']['local-users'][usr]['ip'] = c.return_value( - 'authentication local-users username ' + usr + ' static-ip') - if c.exists('authentication local-users username ' + usr + ' rate-limit download'): - config_data['authentication']['local-users'][usr]['download'] = c.return_value( - 'authentication local-users username ' + usr + ' rate-limit download') - if c.exists('authentication local-users username ' + usr + ' rate-limit upload'): - config_data['authentication']['local-users'][usr]['upload'] = c.return_value( - 'authentication local-users username ' + usr + ' rate-limit upload') - - # authentication mode radius servers and settings - - if c.exists('authentication mode radius'): - config_data['authentication']['mode'] = 'radius' - rsrvs = c.list_nodes('authentication radius server') - for rsrv in rsrvs: - if c.return_value('authentication radius server ' + rsrv + ' fail-time') == None: - ftime = '0' - else: - ftime = str(c.return_value( - 'authentication radius server ' + rsrv + ' fail-time')) - if c.return_value('authentication radius-server ' + rsrv + ' req-limit') == None: - reql = '0' - else: - reql = str(c.return_value( - 'authentication radius server ' + rsrv + ' req-limit')) - - config_data['authentication']['radiussrv'].update( - { - rsrv: { - 'secret': c.return_value('authentication radius server ' + rsrv + ' key'), - 'fail-time': ftime, - 'req-limit': reql - } - } - ) - # Source ip address feature - if c.exists('authentication radius source-address'): - config_data['authentication']['radius_source_address'] = c.return_value( - 'authentication radius source-address') - - # advanced radius-setting - if c.exists('authentication radius acct-timeout'): - config_data['authentication']['radiusopt']['acct-timeout'] = c.return_value( - 'authentication radius acct-timeout') - if c.exists('authentication radius max-try'): - config_data['authentication']['radiusopt']['max-try'] = c.return_value( - 'authentication radius max-try') - if c.exists('authentication radius timeout'): - config_data['authentication']['radiusopt']['timeout'] = c.return_value( - 'authentication radius timeout') - if c.exists('authentication radius nas-identifier'): - config_data['authentication']['radiusopt']['nas-id'] = c.return_value( - 'authentication radius nas-identifier') - if c.exists('authentication radius dae-server'): - # Set default dae-server port if not defined - if c.exists('authentication radius dae-server port'): - dae_server_port = c.return_value( - 'authentication radius dae-server port') - else: - dae_server_port = "3799" - config_data['authentication']['radiusopt'].update( - { - 'dae-srv': { - 'ip-addr': c.return_value('authentication radius dae-server ip-address'), - 'port': dae_server_port, - 'secret': str(c.return_value('authentication radius dae-server secret')) - } - } - ) - # filter-id is the internal accel default if attribute is empty - # set here as default for visibility which may change in the future - if c.exists('authentication radius rate-limit enable'): - if not c.exists('authentication radius rate-limit attribute'): - config_data['authentication']['radiusopt']['shaper'] = { - 'attr': 'Filter-Id' - } - else: - config_data['authentication']['radiusopt']['shaper'] = { - 'attr': c.return_value('authentication radius rate-limit attribute') - } - if c.exists('authentication radius rate-limit vendor'): - config_data['authentication']['radiusopt']['shaper']['vendor'] = c.return_value( - 'authentication radius rate-limit vendor') - - if c.exists('client-ip-pool'): - if c.exists('client-ip-pool start') and c.exists('client-ip-pool stop'): - config_data['client_ip_pool'] = c.return_value( - 'client-ip-pool start') + '-' + re.search('[0-9]+$', c.return_value('client-ip-pool stop')).group(0) - - if c.exists('client-ip-pool subnet'): - config_data['client_ip_subnets'] = c.return_values( - 'client-ip-pool subnet') - - if c.exists('client-ipv6-pool prefix'): - config_data['client_ipv6_pool']['prefix'] = c.return_values( - 'client-ipv6-pool prefix') - config_data['ip6_column'] = 'ip6,' - if c.exists('client-ipv6-pool delegate-prefix'): - config_data['client_ipv6_pool']['delegate_prefix'] = c.return_values( - 'client-ipv6-pool delegate-prefix') - config_data['ip6_dp_column'] = 'ip6-dp,' - - if c.exists('mtu'): - config_data['mtu'] = c.return_value('mtu') - - # gateway address - if c.exists('gateway-address'): - config_data['gateway_address'] = c.return_value('gateway-address') - else: - # calculate gw-ip-address - if c.exists('client-ip-pool start'): - # use start ip as gw-ip-address - config_data['gateway_address'] = c.return_value( - 'client-ip-pool start') - elif c.exists('client-ip-pool subnet'): - # use first ip address from first defined pool - lst_ip = re.findall("\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}", c.return_values( - 'client-ip-pool subnet')[0]) - config_data['gateway_address'] = lst_ip[0] - - if c.exists('authentication require'): - auth_mods = {'pap': 'pap', 'chap': 'auth_chap_md5', - 'mschap': 'auth_mschap_v1', 'mschap-v2': 'auth_mschap_v2'} - for proto in c.return_values('authentication require'): - config_data['authentication']['auth_proto'].append( - auth_mods[proto]) - else: - config_data['authentication']['auth_proto'] = ['auth_mschap_v2'] - - if c.exists('authentication mppe'): - config_data['authentication']['mppe'] = c.return_value( - 'authentication mppe') - - if c.exists('idle'): - config_data['idle_timeout'] = c.return_value('idle') - - # LNS secret - if c.exists('lns shared-secret'): - config_data['lns_shared_secret'] = c.return_value('lns shared-secret') - - if c.exists('ccp-disable'): - config_data['ccp_disable'] = True - - # ppp_options - ppp_options = {} - if c.exists('ppp-options'): - if c.exists('ppp-options lcp-echo-failure'): - ppp_options['lcp-echo-failure'] = c.return_value( - 'ppp-options lcp-echo-failure') - if c.exists('ppp-options lcp-echo-interval'): - ppp_options['lcp-echo-interval'] = c.return_value( - 'ppp-options lcp-echo-interval') - - if len(ppp_options) != 0: - config_data['ppp_options'] = ppp_options - - return config_data - - -def verify(c): - if c == None: - return None - - if c['authentication']['mode'] == 'local': - if not c['authentication']['local-users']: - raise ConfigError( - 'l2tp-server authentication local-users required') - for usr in c['authentication']['local-users']: - if not c['authentication']['local-users'][usr]['passwd']: - raise ConfigError('user ' + usr + ' requires a password') - - if c['authentication']['mode'] == 'radius': - if len(c['authentication']['radiussrv']) == 0: - raise ConfigError('radius server required') - for rsrv in c['authentication']['radiussrv']: - if c['authentication']['radiussrv'][rsrv]['secret'] == None: - raise ConfigError('radius server ' + rsrv + - ' needs a secret configured') - - # check for the existence of a client ip pool - if not c['client_ip_pool'] and not c['client_ip_subnets']: - raise ConfigError( - "set vpn l2tp remote-access client-ip-pool requires subnet or start/stop IP pool") - - # check ipv6 - if 'delegate_prefix' in c['client_ipv6_pool'] and not 'prefix' in c['client_ipv6_pool']: - raise ConfigError( - "\"set vpn l2tp remote-access client-ipv6-pool prefix\" required for delegate-prefix ") - - if len(c['dnsv6']) > 3: - raise ConfigError("Maximum allowed dnsv6-servers addresses is 3") - - -def generate(c): - if c == None: - return None - - # Prepare Jinja2 template loader from files - tmpl_path = os.path.join(vyos_data_dir['data'], 'templates', 'l2tp') - fs_loader = FileSystemLoader(tmpl_path) - env = Environment(loader=fs_loader, trim_blocks=True) - - # accel-cmd reload doesn't work so any change results in a restart of the daemon - try: - if os.cpu_count() == 1: - c['thread_cnt'] = 1 - else: - c['thread_cnt'] = int(os.cpu_count()/2) - except KeyError: - if os.cpu_count() == 1: - c['thread_cnt'] = 1 - else: - c['thread_cnt'] = int(os.cpu_count()/2) - - tmpl = env.get_template('l2tp.config.tmpl') - config_text = tmpl.render(c) - open(l2tp_conf, 'w').write(config_text) - - if c['authentication']['local-users']: - tmpl = env.get_template('chap-secrets.tmpl') - chap_secrets_txt = tmpl.render(c) - old_umask = os.umask(0o077) - open(chap_secrets, 'w').write(chap_secrets_txt) - os.umask(old_umask) - - return c - - -def apply(c): - if c == None: - if os.path.exists(pidfile): - _accel_cmd('shutdown hard') - if os.path.exists(pidfile): - os.remove(pidfile) - return None - - if not os.path.exists(pidfile): - ret = run(f'/usr/sbin/accel-pppd -c {l2tp_conf} -p {pidfile} -d') - chk_con() - if ret != 0 and os.path.exists(pidfile): - os.remove(pidfile) - raise ConfigError('accel-pppd failed to start') - else: - # if gw ip changes, only restart doesn't work - _accel_cmd('restart') - - -if __name__ == '__main__': - try: - c = get_config() - verify(c) - generate(c) - apply(c) - except ConfigError as e: - print(e) - sys.exit(1) diff --git a/src/conf_mode/vpn_l2tp.py b/src/conf_mode/vpn_l2tp.py new file mode 100755 index 000000000..7ecd8b2a4 --- /dev/null +++ b/src/conf_mode/vpn_l2tp.py @@ -0,0 +1,398 @@ +#!/usr/bin/env python3 +# +# Copyright (C) 2019-2020 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 time import sleep + +from ipaddress import ip_network +from jinja2 import FileSystemLoader, Environment + +from vyos.config import Config +from vyos.defaults import directories as vyos_data_dir +from vyos.util import call +from vyos.validate import is_ipv4 +from vyos import ConfigError + +l2tp_conf = '/etc/accel-ppp/l2tp.conf' +l2tp_chap_secrets = '/etc/accel-ppp/l2tp.chap-secrets' + +default_config_data = { + 'auth_mode': 'local', + 'auth_ppp_mppe': 'prefer', + 'auth_proto': ['auth_mschap_v2'], + 'chap_secrets_file': l2tp_chap_secrets, # used in Jinja2 template + 'client_ip_pool': None, + 'client_ip_subnets': [], + 'client_ipv6_pool': [], + 'client_ipv6_delegate_prefix': [], + 'dnsv4': [], + 'dnsv6': [], + 'gateway_address': '10.255.255.0', + 'local_users' : [], + 'mtu': '1436', + 'outside_addr': '', + 'ppp_mppe': 'prefer', + 'ppp_echo_failure' : '3', + 'ppp_echo_interval' : '30', + 'ppp_echo_timeout': '0', + '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': '', + 'wins': [], + 'ip6_column': [], + 'thread_cnt': 1 +} + +def get_config(): + conf = Config() + base_path = ['vpn', 'l2tp', 'remote-access'] + if not conf.exists(base_path): + return None + + conf.set_level(base_path) + l2tp = deepcopy(default_config_data) + + cpu = os.cpu_count() + if cpu > 1: + l2tp['thread_cnt'] = int(cpu/2) + + ### general options ### + if conf.exists(['name-server']): + for name_server in conf.return_values(['name-server']): + if is_ipv4(name_server): + l2tp['dnsv4'].append(name_server) + else: + l2tp['dnsv6'].append(name_server) + + if conf.exists(['wins-server']): + l2tp['wins'] = conf.return_values(['wins-server']) + + if conf.exists('outside-address'): + l2tp['outside_addr'] = conf.return_value('outside-address') + + if conf.exists(['authentication', 'mode']): + l2tp['auth_mode'] = conf.return_value(['authentication', 'mode']) + + if conf.exists(['authentication', 'protocols']): + auth_mods = { + 'pap': 'auth_pap', + 'chap': 'auth_chap_md5', + 'mschap': 'auth_mschap_v1', + 'mschap-v2': 'auth_mschap_v2' + } + + for proto in conf.return_values(['authentication', 'protocols']): + l2tp['auth_proto'].append(auth_mods[proto]) + + if conf.exists(['authentication', 'mppe']): + l2tp['auth_ppp_mppe'] = conf.return_value(['authentication', 'mppe']) + + # + # local auth + if conf.exists(['authentication', 'local-users']): + for username in conf.list_nodes(['authentication', 'local-users', 'username']): + user = { + 'name' : username, + 'password' : '', + 'state' : 'enabled', + 'ip' : '*', + 'upload' : None, + 'download' : None + } + + conf.set_level(base_path + ['authentication', 'local-users', 'username', username]) + + if conf.exists(['password']): + user['password'] = conf.return_value(['password']) + + if conf.exists(['disable']): + user['state'] = 'disable' + + if conf.exists(['static-ip']): + user['ip'] = conf.return_value(['static-ip']) + + if conf.exists(['rate-limit', 'download']): + user['download'] = conf.return_value(['rate-limit', 'download']) + + if conf.exists(['rate-limit', 'upload']): + user['upload'] = conf.return_value(['rate-limit', 'upload']) + + l2tp['local_users'].append(user) + + # + # RADIUS auth and settings + conf.set_level(base_path + ['authentication', 'radius']) + if conf.exists(['server']): + for server in conf.list_nodes(['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']): + l2tp['radius_server'].append(radius) + + # + # advanced radius-setting + conf.set_level(base_path + ['authentication', 'radius']) + + if conf.exists(['acct-timeout']): + l2tp['radius_acct_tmo'] = conf.return_value(['acct-timeout']) + + if conf.exists(['max-try']): + l2tp['radius_max_try'] = conf.return_value(['max-try']) + + if conf.exists(['timeout']): + l2tp['radius_timeout'] = conf.return_value(['timeout']) + + if conf.exists(['nas-identifier']): + l2tp['radius_nas_id'] = conf.return_value(['nas-identifier']) + + if conf.exists(['nas-ip-address']): + l2tp['radius_nas_ip'] = conf.return_value(['nas-ip-address']) + + if conf.exists(['source-address']): + l2tp['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']) + + l2tp['radius_dynamic_author'] = dae + + if conf.exists(['rate-limit', 'enable']): + l2tp['radius_shaper_attr'] = 'Filter-Id' + c_attr = ['rate-limit', 'enable', 'attribute'] + if conf.exists(c_attr): + l2tp['radius_shaper_attr'] = conf.return_value(c_attr) + + c_vendor = ['rate-limit', 'enable', 'vendor'] + if conf.exists(c_vendor): + l2tp['radius_shaper_vendor'] = conf.return_value(c_vendor) + + conf.set_level(base_path) + if conf.exists(['client-ip-pool']): + if conf.exists(['client-ip-pool', 'start']) and conf.exists(['client-ip-pool', 'stop']): + start = conf.return_value(['client-ip-pool', 'start']) + stop = conf.return_value(['client-ip-pool', 'stop']) + l2tp['client_ip_pool'] = start + '-' + re.search('[0-9]+$', stop).group(0) + + if conf.exists(['client-ip-pool', 'subnet']): + l2tp['client_ip_subnets'] = conf.return_values(['client-ip-pool', 'subnet']) + + if conf.exists(['client-ipv6-pool', 'prefix']): + l2tp['ip6_column'].append('ip6') + 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']) + + l2tp['client_ipv6_pool'].append(tmp) + + if conf.exists(['client-ipv6-pool', 'delegate']): + l2tp['ip6_column'].append('ip6-db') + for prefix in conf.list_nodes(['client-ipv6-pool', 'delegate']): + tmp = { + 'prefix': prefix, + 'mask': '' + } + + if conf.exists(['client-ipv6-pool', 'delegate', prefix, 'mask']): + tmp['mask'] = conf.return_value(['client-ipv6-pool', 'delegate', prefix, 'delegation-prefix']) + + l2tp['client_ipv6_delegate_prefix'].append(tmp) + + if conf.exists(['mtu']): + l2tp['mtu'] = conf.return_value(['mtu']) + + # gateway address + if conf.exists(['gateway-address']): + l2tp['gateway_address'] = conf.return_value(['gateway-address']) + else: + # calculate gw-ip-address + if conf.exists(['client-ip-pool', 'start']): + # use start ip as gw-ip-address + l2tp['gateway_address'] = conf.return_value(['client-ip-pool', 'start']) + + elif conf.exists(['client-ip-pool', 'subnet']): + # use first ip address from first defined pool + subnet = conf.return_values(['client-ip-pool', 'subnet'])[0] + subnet = ip_network(subnet) + l2tp['gateway_address'] = str(list(subnet.hosts())[0]) + + # LNS secret + if conf.exists(['lns', 'shared-secret']): + l2tp['lns_shared_secret'] = conf.return_value(['lns', 'shared-secret']) + + if conf.exists(['ccp-disable']): + l2tp[['ccp_disable']] = True + + # PPP options + if conf.exists(['idle']): + l2tp['ppp_echo_timeout'] = conf.return_value(['idle']) + + if conf.exists(['ppp-options', 'lcp-echo-failure']): + l2tp['ppp_echo_failure'] = conf.return_value(['ppp-options', 'lcp-echo-failure']) + + if conf.exists(['ppp-options', 'lcp-echo-interval']): + l2tp['ppp_echo_interval'] = conf.return_value(['ppp-options', 'lcp-echo-interval']) + + return l2tp + + +def verify(l2tp): + if not l2tp: + return None + + if l2tp['auth_mode'] == 'local': + if not l2tp['local_users']: + raise ConfigError('L2TP local auth mode requires local users to be configured!') + + for user in l2tp['local_users']: + if not user['password']: + raise ConfigError(f"Password required for user {user['name']}") + + elif l2tp['auth_mode'] == 'radius': + if len(l2tp['radius_server']) == 0: + raise ConfigError("RADIUS authentication requires at least one server") + + for radius in l2tp['radius_server']: + if not radius['key']: + raise ConfigError(f"Missing RADIUS secret for server {{ radius['key'] }}") + + # check for the existence of a client ip pool + if not (l2tp['client_ip_pool'] or l2tp['client_ip_subnets']): + raise ConfigError( + "set vpn l2tp remote-access client-ip-pool requires subnet or start/stop IP pool") + + # check ipv6 + if l2tp['client_ipv6_delegate_prefix'] and not l2tp['client_ipv6_pool']: + raise ConfigError('IPv6 prefix delegation requires client-ipv6-pool prefix') + + for prefix in l2tp['client_ipv6_delegate_prefix']: + if not prefix['mask']: + raise ConfigError('Delegation-prefix required for individual delegated networks') + + if len(l2tp['wins']) > 2: + raise ConfigError('Not more then two IPv4 WINS name-servers can be configured') + + if len(l2tp['dnsv4']) > 2: + raise ConfigError('Not more then two IPv4 DNS name-servers can be configured') + + if len(l2tp['dnsv6']) > 3: + raise ConfigError('Not more then three IPv6 DNS name-servers can be configured') + + return None + + +def generate(l2tp): + if not l2tp: + return None + + # Prepare Jinja2 template loader from files + tmpl_path = os.path.join(vyos_data_dir['data'], 'templates', 'l2tp') + fs_loader = FileSystemLoader(tmpl_path) + env = Environment(loader=fs_loader, trim_blocks=True) + + dirname = os.path.dirname(l2tp_conf) + if not os.path.exists(dirname): + os.mkdir(dirname) + + tmpl = env.get_template('l2tp.config.tmpl') + config_text = tmpl.render(c) + with open(l2tp_conf, 'w') as f: + f.write(config_text) + + if l2tp['auth_mode'] == 'local': + tmpl = env.get_template('chap-secrets.tmpl') + config_text = tmpl.render(l2tp) + with open(l2tp_chap_secrets, 'w') as f: + f.write(config_text) + + os.chmod(l2tp_chap_secrets, S_IRUSR | S_IWUSR | S_IRGRP) + + else: + if os.path.exists(l2tp_chap_secrets): + os.unlink(l2tp_chap_secrets) + + return None + + +def apply(l2tp): + if not l2tp: + call('systemctl stop accel-ppp-l2tp.service') + + if os.path.exists(l2tp_conf): + os.unlink(l2tp_conf) + + if os.path.exists(l2tp_chap_secrets): + os.unlink(l2tp_chap_secrets) + + return None + + call('systemctl restart accel-ppp-l2tp.service') + +if __name__ == '__main__': + try: + c = get_config() + verify(c) + generate(c) + apply(c) + except ConfigError as e: + print(e) + exit(1) diff --git a/src/conf_mode/vpn_sstp.py b/src/conf_mode/vpn_sstp.py index ca0844c50..b2eb5bdcb 100755 --- a/src/conf_mode/vpn_sstp.py +++ b/src/conf_mode/vpn_sstp.py @@ -18,7 +18,6 @@ import os from time import sleep from sys import exit -from socket import socket, AF_INET, SOCK_STREAM from copy import deepcopy from stat import S_IRUSR, S_IWUSR, S_IRGRP from jinja2 import FileSystemLoader, Environment @@ -26,41 +25,17 @@ from jinja2 import FileSystemLoader, Environment from vyos.config import Config from vyos import ConfigError from vyos.defaults import directories as vyos_data_dir -from vyos.util import process_running -from vyos.util import process_running, cmd, run - -pidfile = r'/var/run/accel_sstp.pid' -sstp_cnf_dir = r'/etc/accel-ppp/sstp' -chap_secrets = sstp_cnf_dir + '/chap-secrets' -sstp_conf = sstp_cnf_dir + '/sstp.config' - -# config path creation -if not os.path.exists(sstp_cnf_dir): - os.makedirs(sstp_cnf_dir) - -def chk_con(): - cnt = 0 - s = socket(AF_INET, SOCK_STREAM) - while True: - try: - s.connect(("127.0.0.1", 2005)) - s.close() - break - except ConnectionRefusedError: - sleep(0.5) - cnt += 1 - if cnt == 100: - raise("failed to start sstp server") - break - - -def _accel_cmd(command): - return run(f'/usr/bin/accel-cmd -p 2005 {command}') +from vyos.util import call, run + +sstp_conf = '/etc/accel-ppp/sstp.conf' +sstp_chap_secrets = '/etc/accel-ppp/sstp.chap-secrets' default_config_data = { 'local_users' : [], 'auth_mode' : 'local', - 'auth_proto' : [], + 'auth_proto' : ['auth_mschap_v2'], + 'chap_secrets_file': sstp_chap_secrets, # used in Jinja2 template + 'client_gateway': '', 'radius_server' : [], 'radius_acct_tmo' : '3', 'radius_max_try' : '3', @@ -77,11 +52,11 @@ default_config_data = { 'client_ip_pool' : [], 'dnsv4' : [], 'mtu' : '', - 'ppp_mppe' : '', + 'ppp_mppe' : 'prefer', 'ppp_echo_failure' : '', 'ppp_echo_interval' : '', 'ppp_echo_timeout' : '', - 'thread_cnt' : '' + 'thread_cnt' : 1 } def get_config(): @@ -93,10 +68,9 @@ def get_config(): conf.set_level(base_path) - cpu = int(os.cpu_count()/2) - if cpu < 1: - cpu = 1 - sstp['thread_cnt'] = cpu + cpu = os.cpu_count() + if cpu > 1: + sstp['thread_cnt'] = int(cpu/2) if conf.exists(['authentication', 'mode']): sstp['auth_mode'] = conf.return_value(['authentication', 'mode']) @@ -224,9 +198,6 @@ def get_config(): for proto in conf.return_values(['protocols']): sstp['auth_proto'].append(auth_mods[proto]) - else: - sstp['auth_proto'] = ['auth_mschap_v2'] - # # read in SSL certs conf.set_level(base_path + ['ssl']) @@ -262,7 +233,7 @@ def get_config(): # read in PPP stuff conf.set_level(base_path + ['ppp-settings']) if conf.exists('mppe'): - sstp['ppp_mppe'] = conf.return_value('ppp-settings mppe') + sstp['ppp_mppe'] = conf.return_value(['ppp-settings', 'mppe']) if conf.exists(['lcp-echo-failure']): sstp['ppp_echo_failure'] = conf.return_value(['lcp-echo-failure']) @@ -283,7 +254,7 @@ def verify(sstp): # vertify auth settings if sstp['auth_mode'] == 'local': if not sstp['local_users']: - raise ConfigError('sstp-server authentication local-users required') + raise ConfigError('SSTP local auth mode requires local users to be configured!') for user in sstp['local_users']: if not user['password']: @@ -303,7 +274,7 @@ def verify(sstp): raise ConfigError("Client gateway IP address required") if len(sstp['dnsv4']) > 2: - raise ConfigError("Only 2 DNS name-servers can be configured") + raise ConfigError('Not more then two IPv4 DNS name-servers can be configured') if not sstp['ssl_ca'] or not sstp['ssl_cert'] or not sstp['ssl_key']: raise ConfigError('One or more SSL certificates missing') @@ -334,6 +305,10 @@ def generate(sstp): fs_loader = FileSystemLoader(tmpl_path) env = Environment(loader=fs_loader, trim_blocks=True) + dirname = os.path.dirname(sstp_conf) + if not os.path.exists(dirname): + os.mkdir(dirname) + # accel-cmd reload doesn't work so any change results in a restart of the daemon tmpl = env.get_template('sstp.config.tmpl') config_text = tmpl.render(sstp) @@ -343,52 +318,29 @@ def generate(sstp): if sstp['local_users']: tmpl = env.get_template('chap-secrets.tmpl') config_text = tmpl.render(sstp) - with open(chap_secrets, 'w') as f: - f.write(config_text) + with open(sstp_chap_secrets, 'w') as f: + f.write(sstp_chap_secrets) - os.chmod(chap_secrets, S_IRUSR | S_IWUSR | S_IRGRP) + os.chmod(sstp_chap_secrets, S_IRUSR | S_IWUSR | S_IRGRP) else: - if os.path.exists(chap_secrets): - os.unlink(chap_secrets) + if os.path.exists(sstp_chap_secrets): + os.unlink(sstp_chap_secrets) return sstp def apply(sstp): - if sstp is None: - if process_running(pidfile): - command = 'start-stop-daemon' - command += ' --stop ' - command += ' --quiet' - command += ' --oknodo' - command += ' --pidfile ' + pidfile - cmd(command) + if not sstp: + call('systemctl stop accel-ppp-sstp.service') - if os.path.exists(pidfile): - os.remove(pidfile) + if os.path.exists(sstp_conf): + os.unlink(sstp_conf) - return None + if os.path.exists(sstp_chap_secrets): + os.unlink(sstp_chap_secrets) - if not process_running(pidfile): - if os.path.exists(pidfile): - os.remove(pidfile) - - command = 'start-stop-daemon' - command += ' --start ' - command += ' --quiet' - command += ' --oknodo' - command += ' --pidfile ' + pidfile - command += ' --exec /usr/sbin/accel-pppd' - # now pass arguments to accel-pppd binary - command += ' --' - command += ' -c ' + sstp_conf - command += ' -p ' + pidfile - command += ' -d' - cmd(command) - - chk_con() + return None - else: - _accel_cmd('restart') + call('systemctl restart accel-ppp-sstp.service') if __name__ == '__main__': |