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<?php
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/*
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* vpn.inc
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*
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* part of pfSense (https://www.pfsense.org)
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* Copyright (c) 2004-2013 BSD Perimeter
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* Copyright (c) 2013-2016 Electric Sheep Fencing
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* Copyright (c) 2014-2022 Rubicon Communications, LLC (Netgate)
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* Copyright (c) 2008 Shrew Soft Inc
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* All rights reserved.
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*
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* originally part of m0n0wall (http://m0n0.ch/wall)
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* Copyright (c) 2003-2004 Manuel Kasper <mk@neon1.net>.
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* All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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require_once("ipsec.inc");
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require_once("filter.inc");
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require_once("auth.inc");
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require_once("certs.inc");
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/* master setup for vpn (mpd) */
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function vpn_setup() {
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/* start pppoe server */
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vpn_pppoes_configure();
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/* setup l2tp */
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vpn_l2tp_configure();
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}
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function vpn_pppoes_configure() {
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global $config;
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if (is_array($config['pppoes']['pppoe'])) {
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foreach ($config['pppoes']['pppoe'] as $pppoe) {
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vpn_pppoe_configure($pppoe);
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}
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}
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}
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function vpn_pppoe_configure(&$pppoecfg) {
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global $config, $g;
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$syscfg = $config['system'];
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/* create directory if it does not exist */
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if (!is_dir("{$g['varetc_path']}/pppoe{$pppoecfg['pppoeid']}-vpn")) {
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mkdir("{$g['varetc_path']}/pppoe{$pppoecfg['pppoeid']}-vpn");
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}
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if (platform_booting()) {
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if (!$pppoecfg['mode'] || ($pppoecfg['mode'] == "off")) {
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return 0;
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}
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echo gettext("Configuring PPPoE Server service... ");
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} else {
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/* kill mpd */
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if (isvalidpid("{$g['varrun_path']}/pppoe{$pppoecfg['pppoeid']}-vpn.pid")) {
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killbypid("{$g['varrun_path']}/pppoe{$pppoecfg['pppoeid']}-vpn.pid");
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}
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/* wait for process to die */
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sleep(2);
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}
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switch ($pppoecfg['mode']) {
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case 'server':
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$pppoe_interface = get_real_interface($pppoecfg['interface']);
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if ($pppoecfg['paporchap'] == "chap") {
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$paporchap = "set link enable chap";
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} else {
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$paporchap = "set link enable pap";
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}
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/* write mpd.conf */
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$fd = fopen("{$g['varetc_path']}/pppoe{$pppoecfg['pppoeid']}-vpn/mpd.conf", "w");
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if (!$fd) {
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printf(gettext("Error: cannot open mpd.conf in vpn_pppoe_configure().") . "\n");
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return 1;
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}
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$issue_ip_type = "set ipcp ranges {$pppoecfg['localip']}/32 ";
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if (isset($pppoecfg['radius']['radiusissueips']) && isset($pppoecfg['radius']['server']['enable'])) {
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$issue_ip_type .= "0.0.0.0/0";
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} else {
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$issue_ip_type .= "ippool p0";
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}
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$ippool_p0 = ip_after($pppoecfg['remoteip'], $pppoecfg['n_pppoe_units'] - 1);
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if (is_numeric($pppoecfg['n_pppoe_maxlogin']) && ($pppoecfg['n_pppoe_maxlogin'] > 0)) {
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$pppoemaxlogins = $pppoecfg['n_pppoe_maxlogin'];
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} else {
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$pppoemaxlogins = 1;
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}
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$ipcp_dns = '';
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if (!empty($pppoecfg['dns1'])) {
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$ipcp_dns = "set ipcp dns " . $pppoecfg['dns1'];
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if (!empty($pppoecfg['dns2'])) {
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$ipcp_dns .= " " . $pppoecfg['dns2'];
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}
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} elseif (isset($config['dnsmasq']['enable']) ||
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isset ($config['unbound']['enable'])) {
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$ipcp_dns = "set ipcp dns " . get_interface_ip("lan");
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if ($syscfg['dnsserver'][0]) {
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$ipcp_dns .= " " . $syscfg['dnsserver'][0];
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}
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} elseif (is_array($syscfg['dnsserver']) &&
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($syscfg['dnsserver'][0])) {
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$ipcp_dns = "set ipcp dns " . join(" ", $syscfg['dnsserver']);
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}
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$mpdconf = <<<EOD
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startup:
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poes:
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set ippool add p0 {$pppoecfg['remoteip']} {$ippool_p0}
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create bundle template poes_b
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set bundle enable compression
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set ccp yes mppc
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set mppc yes e40
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set mppc yes e128
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set mppc yes stateless
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set iface name poes{$pppoecfg['pppoeid']}-
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set iface group pppoe
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set iface up-script /usr/local/sbin/vpn-linkup-poes
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set iface down-script /usr/local/sbin/vpn-linkdown-poes
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set iface idle 0
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set iface disable on-demand
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set iface disable proxy-arp
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set iface enable tcpmssfix
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set iface mtu 1500
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set ipcp no vjcomp
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{$issue_ip_type}
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{$ipcp_dns}
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create link template poes_l pppoe
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set link action bundle poes_b
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set auth max-logins {$pppoemaxlogins}
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set pppoe iface {$pppoe_interface}
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set link no multilink
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set link no pap chap
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{$paporchap}
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set link keep-alive 60 180
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set link max-redial -1
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set link mru 1492
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set link latency 1
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set link enable incoming
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EOD;
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if (isset ($pppoecfg['radius']['server']['enable'])) {
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$radiusport = "";
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$radiusacctport = "";
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if (isset($pppoecfg['radius']['server']['port'])) {
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$radiusport = $pppoecfg['radius']['server']['port'];
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}
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if (isset($pppoecfg['radius']['server']['acctport'])) {
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$radiusacctport = $pppoecfg['radius']['server']['acctport'];
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}
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$mpdconf .= "\tset radius server {$pppoecfg['radius']['server']['ip']} \"{$pppoecfg['radius']['server']['secret']}\" {$radiusport} {$radiusacctport}\n";
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if (isset($pppoecfg['radius']['server2']['enable'])) {
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$radiusport = "";
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$radiusacctport = "";
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if (isset($pppoecfg['radius']['server2']['port'])) {
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$radiusport = $pppoecfg['radius']['server2']['port'];
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}
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if (isset($pppoecfg['radius']['server2']['acctport'])) {
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$radiusacctport = $pppoecfg['radius']['server2']['acctport'];
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}
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$mpdconf .= "\tset radius server {$pppoecfg['radius']['server2']['ip']} \"{$pppoecfg['radius']['server2']['secret2']}\" {$radiusport} {$radiusacctport}\n";
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}
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$mpdconf .=<<<EOD
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set radius retries 3
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set radius timeout 10
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set auth enable radius-auth
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EOD;
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if (isset ($pppoecfg['radius']['accounting'])) {
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$mpdconf .=<<<EOD
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set auth enable radius-acct
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EOD;
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}
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if (!empty($pppoecfg['radius']['acct_update'])) {
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$mpdconf .= "\tset auth acct-update {$pppoecfg['radius']['acct_update']}\n";
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}
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if (!empty($pppoecfg['radius']['nasip'])) {
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$mpdconf .= "\tset radius me {$pppoecfg['radius']['nasip']}\n";
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}
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}
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fwrite($fd, $mpdconf);
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fclose($fd);
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unset($mpdconf);
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vpn_pppoe_updatesecret($pppoecfg);
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/* Check if previous instance is still up */
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while (file_exists("{$g['varrun_path']}/pppoe{$pppoecfg['pppoeid']}-vpn.pid") && isvalidpid("{$g['varrun_path']}/pppoe{$pppoecfg['pppoeid']}-vpn.pid")) {
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killbypid("{$g['varrun_path']}/pppoe{$pppoecfg['pppoeid']}-vpn.pid");
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}
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/* fire up mpd */
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mwexec("/usr/local/sbin/mpd5 -b -d {$g['varetc_path']}/pppoe{$pppoecfg['pppoeid']}-vpn -p {$g['varrun_path']}/pppoe{$pppoecfg['pppoeid']}-vpn.pid -s poes poes");
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break;
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}
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if (platform_booting()) {
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echo gettext("done") . "\n";
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}
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return 0;
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}
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function vpn_pppoe_updatesecret(&$pppoecfg) {
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global $config, $g;
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246
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if ($pppoecfg['username']) {
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/* write mpd.secret */
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$fd = fopen("{$g['varetc_path']}/pppoe{$pppoecfg['pppoeid']}-vpn/mpd.secret", "w");
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if (!$fd) {
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printf(gettext("Error: cannot open mpd.secret in vpn_pppoe_configure().") . "\n");
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return 1;
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}
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254
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$mpdsecret = "\n\n";
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256
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if (!empty($pppoecfg['username'])) {
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$item = explode(" ", $pppoecfg['username']);
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foreach ($item as $userdata) {
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$data = explode(":", $userdata);
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/* Escape double quotes, do not allow password to start with '!'
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* https://redmine.pfsense.org/issues/10275 */
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$pass = str_replace('"', '\"', ltrim(base64_decode($data[1]), '!'));
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$mpdsecret .= "{$data[0]} \"{$pass}\" {$data[2]}\n";
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}
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}
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fwrite($fd, $mpdsecret);
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fclose($fd);
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unset($mpdsecret);
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271
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chmod("{$g['varetc_path']}/pppoe{$pppoecfg['pppoeid']}-vpn/mpd.secret", 0600);
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272
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return 0;
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273
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}
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}
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275
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276
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function vpn_l2tp_configure($interface = '') {
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global $config, $g;
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278
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279
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$syscfg = $config['system'];
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280
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$l2tpcfg = $config['l2tp'];
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281
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282
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if (platform_booting()) {
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283
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if (!$l2tpcfg['mode'] || ($l2tpcfg['mode'] == "off")) {
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284
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return 0;
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285
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}
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286
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287
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echo gettext("Configuring l2tp VPN service... ");
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288
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} else {
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289
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if (!empty($interface) && ($l2tpcfg['interface'] != $interface)) {
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290
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return 0;
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291
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}
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292
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/* kill mpd */
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293
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if (isvalidpid("{$g['varrun_path']}/l2tp-vpn.pid")) {
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294
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killbypid("{$g['varrun_path']}/l2tp-vpn.pid");
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295
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}
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296
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297
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/* wait for process to die */
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298
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sleep(8);
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299
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300
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}
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301
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302
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switch ($l2tpcfg['mode']) {
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303
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304
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case 'server':
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305
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$l2tp_listen="";
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306
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$ipaddr = get_interface_ip(get_failover_interface($l2tpcfg['interface']));
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307
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if (is_ipaddrv4($ipaddr)) {
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308
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$l2tp_listen="set l2tp self $ipaddr";
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309
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}
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310
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311
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switch ($l2tpcfg['paporchap']) {
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312
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case 'chap':
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313
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$paporchap = "set link enable chap";
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314
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break;
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315
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case 'chap-msv2':
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316
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$paporchap = "set link enable chap-msv2";
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317
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break;
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318
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default:
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319
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$paporchap = "set link enable pap";
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320
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break;
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321
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}
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322
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323
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/* create directory if it does not exist */
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324
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if (!is_dir("{$g['varetc_path']}/l2tp-vpn")) {
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325
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mkdir("{$g['varetc_path']}/l2tp-vpn");
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326
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}
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327
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328
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/* write mpd.conf */
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329
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$fd = fopen("{$g['varetc_path']}/l2tp-vpn/mpd.conf", "w");
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330
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if (!$fd) {
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331
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printf(gettext("Error: cannot open mpd.conf in vpn_l2tp_configure().") . "\n");
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332
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return 1;
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333
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}
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334
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335
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$ippool_p0 = ip_after($l2tpcfg['remoteip'], $l2tpcfg['n_l2tp_units'] - 1);
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336
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337
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$issue_ip_type = "set ipcp ranges {$l2tpcfg['localip']}/32 ";
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338
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if (isset($l2tpcfg['radius']['radiusissueips']) && isset($l2tpcfg['radius']['enable'])) {
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339
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$issue_ip_type .= "0.0.0.0/0";
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340
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$ippool = "";
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341
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} else {
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342
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$issue_ip_type .= "ippool p0";
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343
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$ippool = "set ippool add p0 {$l2tpcfg['remoteip']} {$ippool_p0}";
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344
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}
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|
345
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346
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$ipcp_dns = '';
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347
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if (is_ipaddr($l2tpcfg['dns1'])) {
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348
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$ipcp_dns = "set ipcp dns " . $l2tpcfg['dns1'];
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349
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if (is_ipaddr($l2tpcfg['dns2'])) {
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350
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$ipcp_dns .= " " . $l2tpcfg['dns2'];
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351
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}
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352
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} elseif (isset ($config['dnsmasq']['enable']) ||
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353
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isset ($config['unbound']['enable'])) {
|
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354
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$ipcp_dns = "set ipcp dns " . get_interface_ip("lan");
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355
|
if ($syscfg['dnsserver'][0]) {
|
|
356
|
$ipcp_dns .= " " . $syscfg['dnsserver'][0];
|
|
357
|
}
|
|
358
|
} elseif (is_array($syscfg['dnsserver']) &&
|
|
359
|
($syscfg['dnsserver'][0])) {
|
|
360
|
$ipcp_dns = "set ipcp dns " . join(" ", $syscfg['dnsserver']);
|
|
361
|
}
|
|
362
|
|
|
363
|
$mpdconf =<<<EOD
|
|
364
|
|
|
365
|
startup:
|
|
366
|
|
|
367
|
l2tps:
|
|
368
|
{$ippool}
|
|
369
|
|
|
370
|
create bundle template l2tp_b
|
|
371
|
set bundle enable compression
|
|
372
|
set bundle yes crypt-reqd
|
|
373
|
|
|
374
|
set ccp yes mppc
|
|
375
|
|
|
376
|
set iface name l2tps
|
|
377
|
set iface group l2tp
|
|
378
|
set iface up-script /usr/local/sbin/vpn-linkup-l2tp
|
|
379
|
set iface down-script /usr/local/sbin/vpn-linkdown-l2tp
|
|
380
|
set iface disable on-demand
|
|
381
|
set iface enable proxy-arp
|
|
382
|
|
|
383
|
set ipcp yes vjcomp
|
|
384
|
{$issue_ip_type}
|
|
385
|
{$ipcp_dns}
|
|
386
|
|
|
387
|
create link template l2tp_l l2tp
|
|
388
|
set link action bundle l2tp_b
|
|
389
|
|
|
390
|
set link yes acfcomp protocomp
|
|
391
|
set link enable multilink
|
|
392
|
set link no pap chap chap-msv2
|
|
393
|
{$paporchap}
|
|
394
|
{$l2tp_listen}
|
|
395
|
set link keep-alive 10 180
|
|
396
|
set link enable incoming
|
|
397
|
|
|
398
|
EOD;
|
|
399
|
|
|
400
|
if (!empty($l2tpcfg['mtu'])) {
|
|
401
|
$mpdconf .=<<<EOD
|
|
402
|
set link mtu {$l2tpcfg['mtu']}
|
|
403
|
|
|
404
|
EOD;
|
|
405
|
}
|
|
406
|
|
|
407
|
if (!empty($l2tpcfg['secret'])) {
|
|
408
|
$secret = str_replace('"', '\"', $l2tpcfg['secret']);
|
|
409
|
$mpdconf .=<<<EOD
|
|
410
|
set l2tp secret "{$secret}"
|
|
411
|
|
|
412
|
EOD;
|
|
413
|
}
|
|
414
|
|
|
415
|
if (isset ($l2tpcfg['radius']['enable'])) {
|
|
416
|
$mpdconf .=<<<EOD
|
|
417
|
set radius server {$l2tpcfg['radius']['server']} "{$l2tpcfg['radius']['secret']}"
|
|
418
|
set radius retries 3
|
|
419
|
set radius timeout 10
|
|
420
|
set auth disable internal
|
|
421
|
set auth enable radius-auth
|
|
422
|
|
|
423
|
EOD;
|
|
424
|
|
|
425
|
if (isset ($l2tpcfg['radius']['accounting'])) {
|
|
426
|
$mpdconf .=<<<EOD
|
|
427
|
set auth enable radius-acct
|
|
428
|
|
|
429
|
EOD;
|
|
430
|
}
|
|
431
|
}
|
|
432
|
|
|
433
|
fwrite($fd, $mpdconf);
|
|
434
|
fclose($fd);
|
|
435
|
unset($mpdconf);
|
|
436
|
|
|
437
|
vpn_l2tp_updatesecret();
|
|
438
|
|
|
439
|
/* fire up mpd */
|
|
440
|
mwexec("/usr/local/sbin/mpd5 -b -d {$g['varetc_path']}/l2tp-vpn -p {$g['varrun_path']}/l2tp-vpn.pid -s l2tps l2tps");
|
|
441
|
break;
|
|
442
|
default:
|
|
443
|
rmdir_recursive("{$g['varetc_path']}/l2tp-vpn");
|
|
444
|
break;
|
|
445
|
}
|
|
446
|
|
|
447
|
if (platform_booting()) {
|
|
448
|
echo "done\n";
|
|
449
|
}
|
|
450
|
|
|
451
|
return 0;
|
|
452
|
}
|
|
453
|
|
|
454
|
function vpn_l2tp_updatesecret() {
|
|
455
|
global $config, $g;
|
|
456
|
$l2tpcfg = $config['l2tp'];
|
|
457
|
|
|
458
|
if ($l2tpcfg['mode'] != 'server') {
|
|
459
|
return 0;
|
|
460
|
}
|
|
461
|
|
|
462
|
$fd = fopen("{$g['varetc_path']}/l2tp-vpn/mpd.secret", "w");
|
|
463
|
if (!$fd) {
|
|
464
|
printf(gettext("Error: cannot open mpd.secret in vpn_l2tp_updatesecret().") . "\n");
|
|
465
|
return 1;
|
|
466
|
}
|
|
467
|
|
|
468
|
$mpdsecret = "\n\n";
|
|
469
|
|
|
470
|
if (is_array($l2tpcfg['user'])) {
|
|
471
|
foreach ($l2tpcfg['user'] as $user) {
|
|
472
|
/* Escape double quotes, do not allow password to start with '!'
|
|
473
|
* https://redmine.pfsense.org/issues/10275 */
|
|
474
|
$pass = str_replace('"', '\"', ltrim($user['password'], '!'));
|
|
475
|
$mpdsecret .= "{$user['name']} \"{$pass}\" {$user['ip']}\n";
|
|
476
|
}
|
|
477
|
}
|
|
478
|
|
|
479
|
fwrite($fd, $mpdsecret);
|
|
480
|
fclose($fd);
|
|
481
|
unset($mpdsecret);
|
|
482
|
chmod("{$g['varetc_path']}/l2tp-vpn/mpd.secret", 0600);
|
|
483
|
|
|
484
|
return 0;
|
|
485
|
}
|
|
486
|
|
|
487
|
function l2tpusercmp($a, $b) {
|
|
488
|
return strcasecmp($a['name'], $b['name']);
|
|
489
|
}
|
|
490
|
|
|
491
|
function l2tp_users_sort() {
|
|
492
|
global $config;
|
|
493
|
|
|
494
|
if (!is_array($config['l2tp']['user'])) {
|
|
495
|
return;
|
|
496
|
}
|
|
497
|
|
|
498
|
usort($config['l2tp']['user'], "l2tpusercmp");
|
|
499
|
}
|
|
500
|
|
|
501
|
?>
|