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<?php
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/* $Id$ */
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/*
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$RCSfile$
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Copyright (C) 2008 Scott Ullrich <sullrich@gmail.com>
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All rights reserved.
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Copyright (C) 2006 Fernando Lemos
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All rights reserved.
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This file was rewritten from scratch by Fernando Lemos but
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*MIGHT* contain code previously written by:
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Copyright (C) 2005 Peter Allgeyer <allgeyer_AT_web.de>
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All rights reserved.
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Copyright (C) 2004 Peter Curran (peter@closeconsultants.com).
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notices,
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this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notices, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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DISABLE_PHP_LINT_CHECKING
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pfSense_BUILDER_BINARIES: /usr/local/sbin/openvpn /usr/bin/openssl /sbin/ifconfig
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pfSense_MODULE: openvpn
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*/
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require_once('config.inc');
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require_once("certs.inc");
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require_once('pfsense-utils.inc');
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require_once("auth.inc");
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$openvpn_prots = array("UDP", "TCP");
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$openvpn_dev_mode = array("tun", "tap");
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/*
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* The User Auth mode below is disabled because
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* OpenVPN erroneously requires that we provide
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* a CA configuration parameter. In this mode,
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* clients don't send a certificate so there is
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* no need for a CA. If we require that admins
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* provide one in the pfSense UI due to a bogus
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* requirement imposed by OpenVPN, it could be
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* considered very confusing ( I know I was ).
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*
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* -mgrooms
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*/
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$openvpn_dh_lengths = array(
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1024, 2048, 4096 );
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$openvpn_cert_depths = array(
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1 => "One (Client+Server)",
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2 => "Two (Client+Intermediate+Server)",
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3 => "Three (Client+2xIntermediate+Server)",
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4 => "Four (Client+3xIntermediate+Server)",
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5 => "Five (Client+4xIntermediate+Server)"
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);
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$openvpn_server_modes = array(
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'p2p_tls' => "Peer to Peer ( SSL/TLS )",
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'p2p_shared_key' => "Peer to Peer ( Shared Key )",
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'server_tls' => "Remote Access ( SSL/TLS )",
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'server_user' => "Remote Access ( User Auth )",
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'server_tls_user' => "Remote Access ( SSL/TLS + User Auth )");
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$openvpn_client_modes = array(
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'p2p_tls' => "Peer to Peer ( SSL/TLS )",
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'p2p_shared_key' => "Peer to Peer ( Shared Key )" );
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function openvpn_create_key() {
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$fp = popen("/usr/local/sbin/openvpn --genkey --secret /dev/stdout 2>/dev/null", "r");
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if (!$fp)
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return false;
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$rslt = stream_get_contents($fp);
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pclose($fp);
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return $rslt;
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}
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function openvpn_create_dhparams($bits) {
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$fp = popen("/usr/bin/openssl dhparam {$bits} 2>/dev/null", "r");
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if (!$fp)
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return false;
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$rslt = stream_get_contents($fp);
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pclose($fp);
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return $rslt;
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}
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function openvpn_vpnid_used($vpnid) {
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global $config;
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if (is_array($config['openvpn']['openvpn-server']))
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foreach ($config['openvpn']['openvpn-server'] as & $settings)
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if ($vpnid == $settings['vpnid'])
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return true;
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if (is_array($config['openvpn']['openvpn-client']))
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foreach ($config['openvpn']['openvpn-client'] as & $settings)
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if ($vpnid == $settings['vpnid'])
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return true;
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return false;
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}
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function openvpn_vpnid_next() {
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$vpnid = 1;
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while(openvpn_vpnid_used($vpnid))
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$vpnid++;
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return $vpnid;
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}
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function openvpn_port_used($prot, $port) {
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global $config;
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if (is_array($config['openvpn']['openvpn-server']))
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foreach ($config['openvpn']['openvpn-server'] as & $settings)
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if ($port == $settings['local_port'] &&
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$prot == $settings['protocol'] && !isset($settings['disable']))
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return $settings['vpnid'];
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if (is_array($config['openvpn']['openvpn-client']))
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foreach ($config['openvpn']['openvpn-client'] as & $settings)
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if ($port == $settings['local_port'] &&
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$prot == $settings['protocol'] && !isset($settings['disable']))
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return $settings['vpnid'];
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return 0;
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}
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function openvpn_port_next($prot) {
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$port = 1194;
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while(openvpn_port_used($prot, $port))
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$port++;
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return $port;
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}
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function openvpn_get_cipherlist() {
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$ciphers = array();
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$cipher_out = shell_exec('/usr/local/sbin/openvpn --show-ciphers | /usr/bin/grep "default key" | /usr/bin/awk \'{print $1, "(" $2 "-" $3 ")";}\'');
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$cipher_lines = explode("\n", trim($cipher_out));
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sort($cipher_lines);
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foreach ($cipher_lines as $line) {
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$words = explode(' ', $line);
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$ciphers[$words[0]] = "{$words[0]} {$words[1]}";
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}
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$ciphers["none"] = "None (No Encryption)";
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return $ciphers;
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}
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function openvpn_get_engines() {
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$openssl_engines = array('none' => 'No Hardware Crypto Acceleration');
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exec("/usr/bin/openssl engine", $openssl_engine_output);
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foreach ($openssl_engine_output as $oeo) {
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$linematch = array();
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preg_match("/\((.*)\)\s(.*)/", $oeo, $linematch);
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if ($linematch[1] != "dynamic")
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$openssl_engines[$linematch[1]] = $linematch[2];
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}
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return $openssl_engines;
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}
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function openvpn_validate_engine($engine) {
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$engines = openvpn_get_engines();
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return array_key_exists($engine, $engines);
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}
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function openvpn_validate_host($value, $name) {
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$value = trim($value);
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if (empty($value) || (!is_domain($value) && !is_ipaddr($value)))
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return "The field '$name' must contain a valid IP address or domain name.";
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return false;
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}
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function openvpn_validate_port($value, $name) {
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$value = trim($value);
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if (empty($value) || !is_numeric($value) || $value < 0 || ($value > 65535))
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return "The field '$name' must contain a valid port, ranging from 0 to 65535.";
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return false;
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}
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function openvpn_validate_cidr($value, $name) {
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$value = trim($value);
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if (!empty($value)) {
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list($ip, $mask) = explode('/', $value);
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if (!is_ipaddr($ip) or !is_numeric($mask) or ($mask > 32) or ($mask < 0))
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return "The field '$name' must contain a valid CIDR range.";
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}
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return false;
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}
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function openvpn_add_dhcpopts(& $settings, & $conf) {
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if (!empty($settings['dns_domain']))
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$conf .= "push \"dhcp-option DOMAIN {$settings['dns_domain']}\"\n";
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if (!empty($settings['dns_server1']))
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$conf .= "push \"dhcp-option DNS {$settings['dns_server1']}\"\n";
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if (!empty($settings['dns_server2']))
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$conf .= "push \"dhcp-option DNS {$settings['dns_server2']}\"\n";
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if (!empty($settings['dns_server3']))
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$conf .= "push \"dhcp-option DNS {$settings['dns_server3']}\"\n";
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if (!empty($settings['dns_server4']))
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$conf .= "push \"dhcp-option DNS {$settings['dns_server4']}\"\n";
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if (!empty($settings['ntp_server1']))
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$conf .= "push \"dhcp-option NTP {$settings['ntp_server1']}\"\n";
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if (!empty($settings['ntp_server2']))
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$conf .= "push \"dhcp-option NTP {$settings['ntp_server2']}\"\n";
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if ($settings['netbios_enable']) {
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if (!empty($settings['dhcp_nbttype']) && ($settings['dhcp_nbttype'] != 0))
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$conf .= "push \"dhcp-option NBT {$settings['dhcp_nbttype']}\"\n";
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if (!empty($settings['dhcp_nbtscope']))
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$conf .= "push \"dhcp-option NBS {$settings['dhcp_nbtscope']}\"\n";
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if (!empty($settings['wins_server1']))
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$conf .= "push \"dhcp-option WINS {$settings['wins_server1']}\"\n";
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if (!empty($settings['wins_server2']))
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$conf .= "push \"dhcp-option WINS {$settings['wins_server2']}\"\n";
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if (!empty($settings['nbdd_server1']))
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$conf .= "push \"dhcp-option NBDD {$settings['nbdd_server1']}\"\n";
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}
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if ($settings['gwredir'])
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$conf .= "push \"redirect-gateway def1\"\n";
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}
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function openvpn_add_custom(& $settings, & $conf) {
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if ($settings['custom_options']) {
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$options = explode(';', $settings['custom_options']);
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if (is_array($options)) {
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foreach ($options as $option)
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$conf .= "$option\n";
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} else
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$conf .= "{$settings['custom_options']}\n";
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}
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}
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function openvpn_add_keyfile(& $data, & $conf, $mode_id, $directive, $opt = "") {
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global $g;
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$fpath = $g['varetc_path']."/openvpn/{$mode_id}.{$directive}";
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file_put_contents($fpath, base64_decode($data));
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//chown($fpath, 'nobody');
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//chgrp($fpath, 'nobody');
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@chmod($fpath, 0600);
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$conf .= "{$directive} {$fpath} {$opt}\n";
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}
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function openvpn_reconfigure($mode, $settings) {
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global $g, $config;
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if (empty($settings))
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return;
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if (isset($settings['disable']))
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return;
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/*
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* NOTE: Deleting tap devices causes spontaneous reboots. Instead,
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* we use a vpnid number which is allocated for a particular client
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* or server configuration. ( see openvpn_vpnid_next() )
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*/
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$vpnid = $settings['vpnid'];
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$mode_id = $mode.$vpnid;
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if (isset($settings['dev_mode']))
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$tunname = "{$settings['dev_mode']}{$vpnid}";
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else { /* defaults to tun */
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$tunname = "tun{$vpnid}";
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$settings['dev_mode'] = "tun";
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}
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if ($mode == "server")
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$devname = "ovpns{$vpnid}";
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else
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$devname = "ovpnc{$vpnid}";
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/* is our device already configured */
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if (mwexec("/sbin/ifconfig {$devname}")) {
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/* create the tap device if required */
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if (!file_exists("/dev/{$tunname}"))
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exec("/sbin/ifconfig {$tunname} create");
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/* rename the device */
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mwexec("/sbin/ifconfig {$tunname} name {$devname}");
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/* add the device to the openvpn group */
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mwexec("/sbin/ifconfig {$devname} group openvpn");
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}
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$pfile = $g['varrun_path'] . "/openvpn_{$mode_id}.pid";
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$proto = ($settings['protocol'] == 'UDP' ? 'udp' : "tcp-{$mode}");
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$dev_mode = $settings['dev_mode'];
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$cipher = $settings['crypto'];
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$interface = $settings['interface'];
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$ipaddr = $settings['ipaddr'];
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// If a specific ip address (VIP) is requested, use it.
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// Otherwise, if a specific interface is requested, use it
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// If "any" interface was selected, local directive will be ommited.
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343
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if (!empty($ipaddr)) {
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$iface_ip=$ipaddr;
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} else {
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if ((!empty($interface)) && (strcmp($interface, "any"))) {
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$iface_ip=get_interface_ip($interface);
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}
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}
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$conf = "dev {$devname}\n";
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$conf .= "dev-type {$settings['dev_mode']}\n";
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$conf .= "dev-node /dev/{$tunname}\n";
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$conf .= "writepid {$pfile}\n";
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$conf .= "#user nobody\n";
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$conf .= "#group nobody\n";
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$conf .= "script-security 3\n";
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$conf .= "daemon\n";
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$conf .= "keepalive 10 60\n";
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$conf .= "ping-timer-rem\n";
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$conf .= "persist-tun\n";
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362
|
$conf .= "persist-key\n";
|
|
363
|
$conf .= "proto {$proto}\n";
|
|
364
|
$conf .= "cipher {$cipher}\n";
|
|
365
|
$conf .= "up /usr/local/sbin/ovpn-linkup\n";
|
|
366
|
$conf .= "down /usr/local/sbin/ovpn-linkdown\n";
|
|
367
|
|
|
368
|
if (!empty($iface_ip)) {
|
|
369
|
$conf .= "local {$iface_ip}\n";
|
|
370
|
}
|
|
371
|
|
|
372
|
if (openvpn_validate_engine($settings['engine']) && ($settings['engine'] != "none"))
|
|
373
|
$conf .= "engine {$settings['engine']}\n";
|
|
374
|
|
|
375
|
// server specific settings
|
|
376
|
if ($mode == 'server') {
|
|
377
|
|
|
378
|
list($ip, $cidr) = explode('/', $settings['tunnel_network']);
|
|
379
|
$mask = gen_subnet_mask($cidr);
|
|
380
|
|
|
381
|
// configure tls modes
|
|
382
|
switch($settings['mode']) {
|
|
383
|
case 'p2p_tls':
|
|
384
|
case 'server_tls':
|
|
385
|
case 'server_user':
|
|
386
|
case 'server_tls_user':
|
|
387
|
$conf .= "tls-server\n";
|
|
388
|
break;
|
|
389
|
}
|
|
390
|
|
|
391
|
// configure p2p/server modes
|
|
392
|
switch($settings['mode']) {
|
|
393
|
case 'p2p_tls':
|
|
394
|
// If the CIDR is less than a /30, OpenVPN will complain if you try to
|
|
395
|
// use the server directive. It works for a single client without it.
|
|
396
|
// See ticket #1417
|
|
397
|
if ($cidr < 30) {
|
|
398
|
$conf .= "server {$ip} {$mask}\n";
|
|
399
|
$conf .= "client-config-dir {$g['varetc_path']}/openvpn-csc\n";
|
|
400
|
}
|
|
401
|
case 'p2p_shared_key':
|
|
402
|
$baselong = ip2long32($ip) & ip2long($mask);
|
|
403
|
$ip1 = long2ip32($baselong + 1);
|
|
404
|
$ip2 = long2ip32($baselong + 2);
|
|
405
|
$conf .= "ifconfig $ip1 $ip2\n";
|
|
406
|
break;
|
|
407
|
case 'server_tls':
|
|
408
|
case 'server_user':
|
|
409
|
case 'server_tls_user':
|
|
410
|
$conf .= "server {$ip} {$mask}\n";
|
|
411
|
$conf .= "client-config-dir {$g['varetc_path']}/openvpn-csc\n";
|
|
412
|
break;
|
|
413
|
}
|
|
414
|
|
|
415
|
// configure user auth modes
|
|
416
|
switch($settings['mode']) {
|
|
417
|
case 'server_user':
|
|
418
|
$conf .= "client-cert-not-required\n";
|
|
419
|
case 'server_tls_user':
|
|
420
|
$conf .= "username-as-common-name\n";
|
|
421
|
if (!empty($settings['authmode'])) {
|
|
422
|
$authcfgs = explode(",", $settings['authmode']);
|
|
423
|
$sed = "\$authmodes=array(";
|
|
424
|
$firstsed = 0;
|
|
425
|
foreach ($authcfgs as $authcfg) {
|
|
426
|
if ($firstsed > 0)
|
|
427
|
$sed .= ",";
|
|
428
|
$firstsed = 1;
|
|
429
|
$sed .= "\"{$authcfg}\"";
|
|
430
|
}
|
|
431
|
$sed .= ");\\\n";
|
|
432
|
if ($settings['strictusercn'])
|
|
433
|
$sed .= "\$strictusercn = true;";
|
|
434
|
$sed .= " \$modeid = \"{$mode_id}\";";
|
|
435
|
mwexec("/bin/cat /etc/inc/openvpn.auth-user.php | /usr/bin/sed 's/\/\/<template>/{$sed}/g' > {$g['varetc_path']}/openvpn/{$mode_id}.php");
|
|
436
|
mwexec("/bin/chmod a+x {$g['varetc_path']}/openvpn/{$mode_id}.php");
|
|
437
|
$conf .= "auth-user-pass-verify {$g['varetc_path']}/openvpn/{$mode_id}.php via-env\n";
|
|
438
|
}
|
|
439
|
break;
|
|
440
|
}
|
|
441
|
if (!isset($settings['cert_depth']) && (strstr($settings['mode'], 'tls')))
|
|
442
|
$settings['cert_depth'] = 1;
|
|
443
|
if (is_numeric($settings['cert_depth'])) {
|
|
444
|
$sed = "";
|
|
445
|
$cert = lookup_cert($settings['certref']);
|
|
446
|
$servercn = cert_get_cn($cert['crt']);
|
|
447
|
$sed .= "\$server_cn = \"{$servercn}\";\\\n";
|
|
448
|
$sed .= "\$allowed_depth = {$settings['cert_depth']};\\\n";
|
|
449
|
mwexec("/bin/cat /etc/inc/openvpn.tls-verify.php | /usr/bin/sed 's/\/\/<template>/{$sed}/g' > {$g['varetc_path']}/openvpn/{$mode_id}.tls-verify.php");
|
|
450
|
mwexec("/bin/chmod a+x {$g['varetc_path']}/openvpn/{$mode_id}.tls-verify.php");
|
|
451
|
$conf .= "tls-verify {$g['varetc_path']}/openvpn/{$mode_id}.tls-verify.php\n";
|
|
452
|
}
|
|
453
|
|
|
454
|
// The local port to listen on
|
|
455
|
$conf .= "lport {$settings['local_port']}\n";
|
|
456
|
|
|
457
|
// The management port to listen on
|
|
458
|
// Use unix socket to overcome the problem on any type of server
|
|
459
|
$conf .= "management {$g['varetc_path']}/openvpn/{$mode_id}.sock unix\n";
|
|
460
|
//$conf .= "management 127.0.0.1 {$settings['local_port']}\n";
|
|
461
|
|
|
462
|
if ($settings['maxclients'])
|
|
463
|
$conf .= "max-clients {$settings['maxclients']}\n";
|
|
464
|
|
|
465
|
// Can we push routes
|
|
466
|
if ($settings['local_network']) {
|
|
467
|
list($ip, $mask) = explode('/', $settings['local_network']);
|
|
468
|
$mask = gen_subnet_mask($mask);
|
|
469
|
$conf .= "push \"route $ip $mask\"\n";
|
|
470
|
}
|
|
471
|
|
|
472
|
switch($settings['mode']) {
|
|
473
|
case 'server_tls':
|
|
474
|
case 'server_user':
|
|
475
|
case 'server_tls_user':
|
|
476
|
// Configure client dhcp options
|
|
477
|
openvpn_add_dhcpopts($settings, $conf);
|
|
478
|
if ($settings['client2client'])
|
|
479
|
$conf .= "client-to-client\n";
|
|
480
|
break;
|
|
481
|
}
|
|
482
|
if (isset($settings['duplicate_cn']))
|
|
483
|
$conf .= "duplicate-cn\n";
|
|
484
|
}
|
|
485
|
|
|
486
|
// client specific settings
|
|
487
|
|
|
488
|
if ($mode == 'client') {
|
|
489
|
|
|
490
|
// configure p2p mode
|
|
491
|
switch($settings['mode']) {
|
|
492
|
case 'p2p_tls':
|
|
493
|
$conf .= "tls-client\n";
|
|
494
|
case 'shared_key':
|
|
495
|
$conf .= "client\n";
|
|
496
|
break;
|
|
497
|
}
|
|
498
|
|
|
499
|
// If there is no bind option at all (ip and/or port), add "nobind" directive
|
|
500
|
// Otherwise, use the local port if defined, failing that, use lport 0 to
|
|
501
|
// ensure a random source port.
|
|
502
|
if ((empty($iface_ip)) && (!$settings['local_port']))
|
|
503
|
$conf .= "nobind\n";
|
|
504
|
elseif ($settings['local_port'])
|
|
505
|
$conf .= "lport {$settings['local_port']}\n";
|
|
506
|
else
|
|
507
|
$conf .= "lport 0\n";
|
|
508
|
|
|
509
|
// Use unix socket to overcome the problem on any type of server
|
|
510
|
$conf .= "management {$g['varetc_path']}/openvpn/{$mode_id}.sock unix\n";
|
|
511
|
|
|
512
|
// The remote server
|
|
513
|
$conf .= "remote {$settings['server_addr']} {$settings['server_port']}\n";
|
|
514
|
|
|
515
|
if (!empty($settings['use_shaper']))
|
|
516
|
$conf .= "shaper {$settings['use_shaper']}\n";
|
|
517
|
|
|
518
|
if (!empty($settings['tunnel_network'])) {
|
|
519
|
list($ip, $mask) = explode('/', $settings['tunnel_network']);
|
|
520
|
$mask = gen_subnet_mask($mask);
|
|
521
|
$baselong = ip2long32($ip) & ip2long($mask);
|
|
522
|
$ip1 = long2ip32($baselong + 1);
|
|
523
|
$ip2 = long2ip32($baselong + 2);
|
|
524
|
$conf .= "ifconfig $ip2 $ip1\n";
|
|
525
|
}
|
|
526
|
|
|
527
|
if ($settings['proxy_addr']) {
|
|
528
|
$conf .= "http-proxy {$settings['proxy_addr']} {$settings['proxy_port']}";
|
|
529
|
if ($settings['proxy_authtype'] != "none") {
|
|
530
|
$conf .= " {$g['varetc_path']}/openvpn/{$mode_id}.pas {$settings['proxy_authtype']}";
|
|
531
|
$proxypas = "{$settings['proxy_user']}\n";
|
|
532
|
$proxypas .= "{$settings['proxy_passwd']}\n";
|
|
533
|
file_put_contents("{$g['varetc_path']}/openvpn/{$mode_id}.pas", $proxypas);
|
|
534
|
}
|
|
535
|
$conf .= " \n";
|
|
536
|
}
|
|
537
|
}
|
|
538
|
|
|
539
|
// Add a remote network route if set, and only for p2p modes.
|
|
540
|
if ((substr($settings['mode'], 0, 3) == "p2p") && is_subnet($settings['remote_network'])) {
|
|
541
|
list($ip, $mask) = explode('/', $settings['remote_network']);
|
|
542
|
$mask = gen_subnet_mask($mask);
|
|
543
|
$conf .= "route $ip $mask\n";
|
|
544
|
}
|
|
545
|
|
|
546
|
// Write the settings for the keys
|
|
547
|
switch($settings['mode']) {
|
|
548
|
case 'p2p_shared_key':
|
|
549
|
openvpn_add_keyfile($settings['shared_key'], $conf, $mode_id, "secret");
|
|
550
|
break;
|
|
551
|
case 'p2p_tls':
|
|
552
|
case 'server_tls':
|
|
553
|
case 'server_tls_user':
|
|
554
|
case 'server_user':
|
|
555
|
$ca = lookup_ca($settings['caref']);
|
|
556
|
openvpn_add_keyfile($ca['crt'], $conf, $mode_id, "ca");
|
|
557
|
$cert = lookup_cert($settings['certref']);
|
|
558
|
openvpn_add_keyfile($cert['crt'], $conf, $mode_id, "cert");
|
|
559
|
openvpn_add_keyfile($cert['prv'], $conf, $mode_id, "key");
|
|
560
|
if ($mode == 'server')
|
|
561
|
$conf .= "dh {$g['etc_path']}/dh-parameters.{$settings['dh_length']}\n";
|
|
562
|
if (!empty($settings['crlref'])) {
|
|
563
|
$crl = lookup_crl($settings['crlref']);
|
|
564
|
crl_update($crl);
|
|
565
|
openvpn_add_keyfile($crl['text'], $conf, $mode_id, "crl-verify");
|
|
566
|
}
|
|
567
|
if ($settings['tls']) {
|
|
568
|
if ($mode == "server")
|
|
569
|
$tlsopt = 0;
|
|
570
|
else
|
|
571
|
$tlsopt = 1;
|
|
572
|
openvpn_add_keyfile($settings['tls'], $conf, $mode_id, "tls-auth", $tlsopt);
|
|
573
|
}
|
|
574
|
break;
|
|
575
|
}
|
|
576
|
|
|
577
|
if ($settings['compression'])
|
|
578
|
$conf .= "comp-lzo\n";
|
|
579
|
|
|
580
|
if ($settings['passtos'])
|
|
581
|
$conf .= "passtos\n";
|
|
582
|
|
|
583
|
if ($settings['resolve_retry'])
|
|
584
|
$conf .= "resolv-retry infinite\n";
|
|
585
|
|
|
586
|
if ($settings['dynamic_ip']) {
|
|
587
|
$conf .= "persist-remote-ip\n";
|
|
588
|
$conf .= "float\n";
|
|
589
|
}
|
|
590
|
|
|
591
|
openvpn_add_custom($settings, $conf);
|
|
592
|
|
|
593
|
$fpath = $g['varetc_path']."/openvpn/{$mode_id}.conf";
|
|
594
|
file_put_contents($fpath, $conf);
|
|
595
|
//chown($fpath, 'nobody');
|
|
596
|
//chgrp($fpath, 'nobody');
|
|
597
|
@chmod("{$g['varetc_path']}/openvpn/{$mode_id}.conf", 0600);
|
|
598
|
@chmod("{$g['varetc_path']}/openvpn/{$mode_id}.key", 0600);
|
|
599
|
@chmod("{$g['varetc_path']}/openvpn/{$mode_id}.tls-auth", 0600);
|
|
600
|
@chmod("{$g['varetc_path']}/openvpn/{$mode_id}.conf", 0600);
|
|
601
|
}
|
|
602
|
|
|
603
|
function openvpn_restart($mode, $settings) {
|
|
604
|
global $g, $config;
|
|
605
|
|
|
606
|
$vpnid = $settings['vpnid'];
|
|
607
|
$mode_id = $mode.$vpnid;
|
|
608
|
|
|
609
|
/* kill the process if running */
|
|
610
|
$pfile = $g['varrun_path']."/openvpn_{$mode_id}.pid";
|
|
611
|
if (file_exists($pfile)) {
|
|
612
|
|
|
613
|
/* read the pid file */
|
|
614
|
$pid = rtrim(file_get_contents($pfile));
|
|
615
|
unlink($pfile);
|
|
616
|
|
|
617
|
/* send a term signal to the process */
|
|
618
|
posix_kill($pid, SIGTERM);
|
|
619
|
|
|
620
|
/* wait until the process exits */
|
|
621
|
while(posix_kill($pid, 0))
|
|
622
|
usleep(250000);
|
|
623
|
}
|
|
624
|
|
|
625
|
if (isset($settings['disable']))
|
|
626
|
return;
|
|
627
|
|
|
628
|
/* start the new process */
|
|
629
|
$fpath = $g['varetc_path']."/openvpn/{$mode_id}.conf";
|
|
630
|
mwexec_bg("/usr/local/sbin/openvpn --config {$fpath}");
|
|
631
|
|
|
632
|
if (!$g['booting'])
|
|
633
|
send_event("filter reload");
|
|
634
|
}
|
|
635
|
|
|
636
|
function openvpn_delete($mode, & $settings) {
|
|
637
|
global $g, $config;
|
|
638
|
|
|
639
|
$vpnid = $settings['vpnid'];
|
|
640
|
$mode_id = $mode.$vpnid;
|
|
641
|
|
|
642
|
$tunname = "tun{$vpnid}";
|
|
643
|
if ($mode == "server")
|
|
644
|
$devname = "ovpns{$vpnid}";
|
|
645
|
else
|
|
646
|
$devname = "ovpnc{$vpnid}";
|
|
647
|
|
|
648
|
/* kill the process if running */
|
|
649
|
$pfile = "{$g['varrun_path']}/openvpn_{$mode_id}.pid";
|
|
650
|
if (file_exists($pfile)) {
|
|
651
|
|
|
652
|
/* read the pid file */
|
|
653
|
$pid = trim(file_get_contents($pfile));
|
|
654
|
unlink($pfile);
|
|
655
|
|
|
656
|
/* send a term signal to the process */
|
|
657
|
posix_kill($pid, SIGTERM);
|
|
658
|
}
|
|
659
|
|
|
660
|
/* remove the device from the openvpn group */
|
|
661
|
mwexec("/sbin/ifconfig {$devname} -group openvpn");
|
|
662
|
|
|
663
|
/* restore the original adapter name */
|
|
664
|
mwexec("/sbin/ifconfig {$devname} name {$tunname}");
|
|
665
|
|
|
666
|
/* remove the configuration files */
|
|
667
|
mwexec("/bin/rm {$g['varetc_path']}/openvpn/{$mode_id}.*");
|
|
668
|
}
|
|
669
|
|
|
670
|
function openvpn_resync_csc(& $settings) {
|
|
671
|
global $g, $config;
|
|
672
|
|
|
673
|
$fpath = $g['varetc_path']."/openvpn-csc/".$settings['common_name'];
|
|
674
|
|
|
675
|
if (isset($settings['disable'])) {
|
|
676
|
unlink_if_exists($fpath);
|
|
677
|
return;
|
|
678
|
}
|
|
679
|
|
|
680
|
$conf = '';
|
|
681
|
if ($settings['block'])
|
|
682
|
$conf .= "disable\n";
|
|
683
|
|
|
684
|
if ($settings['push_reset'])
|
|
685
|
$conf .= "push-reset\n";
|
|
686
|
|
|
687
|
if (!empty($settings['tunnel_network'])) {
|
|
688
|
list($ip, $mask) = explode('/', $settings['tunnel_network']);
|
|
689
|
$baselong = ip2long32($ip) & gen_subnet_mask_long($mask);
|
|
690
|
$serverip = long2ip32($baselong + 1);
|
|
691
|
$clientip = long2ip32($baselong + 2);
|
|
692
|
/* Because this is being pushed, the order from the client's point of view. */
|
|
693
|
$conf .= "ifconfig-push {$clientip} {$serverip}\n";
|
|
694
|
}
|
|
695
|
|
|
696
|
openvpn_add_dhcpopts($settings, $conf);
|
|
697
|
|
|
698
|
if ($settings['gwredir'])
|
|
699
|
$conf .= "push \"redirect-gateway def1\"\n";
|
|
700
|
|
|
701
|
openvpn_add_custom($settings, $conf);
|
|
702
|
|
|
703
|
file_put_contents($fpath, $conf);
|
|
704
|
chown($fpath, 'nobody');
|
|
705
|
chgrp($fpath, 'nobody');
|
|
706
|
}
|
|
707
|
|
|
708
|
function openvpn_delete_csc(& $settings) {
|
|
709
|
global $g, $config;
|
|
710
|
|
|
711
|
$fpath = $g['varetc_path']."/openvpn-csc/".$settings['common_name'];
|
|
712
|
unlink_if_exists($fpath);
|
|
713
|
}
|
|
714
|
|
|
715
|
// Resync the configuration and restart the VPN
|
|
716
|
function openvpn_resync($mode, $settings) {
|
|
717
|
openvpn_reconfigure($mode, $settings);
|
|
718
|
openvpn_restart($mode, $settings);
|
|
719
|
}
|
|
720
|
|
|
721
|
// Resync and restart all VPNs
|
|
722
|
function openvpn_resync_all($interface = "") {
|
|
723
|
global $g, $config;
|
|
724
|
|
|
725
|
// delay our setup until the system
|
|
726
|
// has a chance to init our paths
|
|
727
|
if (!file_exists($g['varetc_path']."/openvpn") ||
|
|
728
|
!file_exists($g['varetc_path']."/openvpn-csc"))
|
|
729
|
return;
|
|
730
|
|
|
731
|
if (!is_array($config['openvpn']))
|
|
732
|
$config['openvpn'] = array();
|
|
733
|
|
|
734
|
/*
|
|
735
|
if (!$config['openvpn']['dh-parameters']) {
|
|
736
|
echo "Configuring OpenVPN Parameters ...\n";
|
|
737
|
$dh_parameters = openvpn_create_dhparams(1024);
|
|
738
|
$dh_parameters = base64_encode($dh_parameters);
|
|
739
|
$config['openvpn']['dh-parameters'] = $dh_parameters;
|
|
740
|
write_config("OpenVPN DH parameters");
|
|
741
|
}
|
|
742
|
|
|
743
|
$path_ovdh = $g['varetc_path']."/openvpn/dh-parameters";
|
|
744
|
if (!file_exists($path_ovdh)) {
|
|
745
|
$dh_parameters = $config['openvpn']['dh-parameters'];
|
|
746
|
$dh_parameters = base64_decode($dh_parameters);
|
|
747
|
file_put_contents($path_ovdh, $dh_parameters);
|
|
748
|
}
|
|
749
|
*/
|
|
750
|
if ($interface <> "")
|
|
751
|
log_error("Resyncing OpenVPN instances for interface " . convert_friendly_interface_to_friendly_descr($interface) . ".");
|
|
752
|
else
|
|
753
|
log_error("Resyncing OpenVPN instances.");
|
|
754
|
|
|
755
|
if (is_array($config['openvpn']['openvpn-server'])) {
|
|
756
|
foreach ($config['openvpn']['openvpn-server'] as & $settings) {
|
|
757
|
if ($interface <> "" && $interface != $settings['interface'])
|
|
758
|
continue;
|
|
759
|
openvpn_resync('server', $settings);
|
|
760
|
}
|
|
761
|
}
|
|
762
|
|
|
763
|
if (is_array($config['openvpn']['openvpn-client'])) {
|
|
764
|
foreach ($config['openvpn']['openvpn-client'] as & $settings) {
|
|
765
|
if ($interface <> "" && $interface != $settings['interface'])
|
|
766
|
continue;
|
|
767
|
openvpn_resync('client', $settings);
|
|
768
|
}
|
|
769
|
}
|
|
770
|
|
|
771
|
if (is_array($config['openvpn']['openvpn-csc']))
|
|
772
|
foreach ($config['openvpn']['openvpn-csc'] as & $settings)
|
|
773
|
openvpn_resync_csc($settings);
|
|
774
|
|
|
775
|
}
|
|
776
|
|
|
777
|
function openvpn_get_active_servers($type="multipoint") {
|
|
778
|
global $config, $g;
|
|
779
|
|
|
780
|
$servers = array();
|
|
781
|
if (is_array($config['openvpn']['openvpn-server'])) {
|
|
782
|
foreach ($config['openvpn']['openvpn-server'] as & $settings) {
|
|
783
|
if (empty($settings) || isset($settings['disable']))
|
|
784
|
continue;
|
|
785
|
|
|
786
|
$prot = $settings['protocol'];
|
|
787
|
$port = $settings['local_port'];
|
|
788
|
|
|
789
|
$server = array();
|
|
790
|
$server['port'] = ($settings['local_port']) ? $settings['local_port'] : 1194;
|
|
791
|
$server['mode'] = $settings['mode'];
|
|
792
|
if ($settings['description'])
|
|
793
|
$server['name'] = "{$settings['description']} {$prot}:{$port}";
|
|
794
|
else
|
|
795
|
$server['name'] = "Server {$prot}:{$port}";
|
|
796
|
$server['conns'] = array();
|
|
797
|
|
|
798
|
$vpnid = $settings['vpnid'];
|
|
799
|
$mode_id = "server{$vpnid}";
|
|
800
|
$server['mgmt'] = $mode_id;
|
|
801
|
$socket = "unix://{$g['varetc_path']}/openvpn/{$mode_id}.sock";
|
|
802
|
list($tn, $sm) = explode('/', $settings['tunnel_network']);
|
|
803
|
|
|
804
|
if ((($server['mode'] == "p2p_shared_key") || ($sm >= 30) ) && ($type == "p2p"))
|
|
805
|
$servers[] = openvpn_get_client_status($server, $socket);
|
|
806
|
elseif (($server['mode'] != "p2p_shared_key") && ($type == "multipoint") && ($sm < 30))
|
|
807
|
$servers[] = openvpn_get_server_status($server, $socket);
|
|
808
|
|
|
809
|
}
|
|
810
|
}
|
|
811
|
return $servers;
|
|
812
|
}
|
|
813
|
|
|
814
|
function openvpn_get_server_status($server, $socket) {
|
|
815
|
$errval;
|
|
816
|
$errstr;
|
|
817
|
$fp = @stream_socket_client($socket, $errval, $errstr, 1);
|
|
818
|
if ($fp) {
|
|
819
|
stream_set_timeout($fp, 1);
|
|
820
|
|
|
821
|
/* send our status request */
|
|
822
|
fputs($fp, "status 2\n");
|
|
823
|
|
|
824
|
/* recv all response lines */
|
|
825
|
while (!feof($fp)) {
|
|
826
|
|
|
827
|
/* read the next line */
|
|
828
|
$line = fgets($fp, 1024);
|
|
829
|
|
|
830
|
$info = stream_get_meta_data($fp);
|
|
831
|
if ($info['timed_out'])
|
|
832
|
break;
|
|
833
|
|
|
834
|
/* parse header list line */
|
|
835
|
if (strstr($line, "HEADER"))
|
|
836
|
continue;
|
|
837
|
|
|
838
|
/* parse end of output line */
|
|
839
|
if (strstr($line, "END") || strstr($line, "ERROR"))
|
|
840
|
break;
|
|
841
|
|
|
842
|
/* parse client list line */
|
|
843
|
if (strstr($line, "CLIENT_LIST")) {
|
|
844
|
$list = explode(",", $line);
|
|
845
|
$conn = array();
|
|
846
|
$conn['common_name'] = $list[1];
|
|
847
|
$conn['remote_host'] = $list[2];
|
|
848
|
$conn['virtual_addr'] = $list[3];
|
|
849
|
$conn['bytes_recv'] = $list[4];
|
|
850
|
$conn['bytes_sent'] = $list[5];
|
|
851
|
$conn['connect_time'] = $list[6];
|
|
852
|
$server['conns'][] = $conn;
|
|
853
|
}
|
|
854
|
}
|
|
855
|
|
|
856
|
/* cleanup */
|
|
857
|
fclose($fp);
|
|
858
|
} else {
|
|
859
|
$conn = array();
|
|
860
|
$conn['common_name'] = "[error]";
|
|
861
|
$conn['remote_host'] = "Management Daemon Unreachable";
|
|
862
|
$conn['virtual_addr'] = "";
|
|
863
|
$conn['bytes_recv'] = 0;
|
|
864
|
$conn['bytes_sent'] = 0;
|
|
865
|
$conn['connect_time'] = 0;
|
|
866
|
$server['conns'][] = $conn;
|
|
867
|
}
|
|
868
|
return $server;
|
|
869
|
}
|
|
870
|
|
|
871
|
function openvpn_get_active_clients() {
|
|
872
|
global $config, $g;
|
|
873
|
|
|
874
|
$clients = array();
|
|
875
|
if (is_array($config['openvpn']['openvpn-client'])) {
|
|
876
|
foreach ($config['openvpn']['openvpn-client'] as & $settings) {
|
|
877
|
|
|
878
|
if (empty($settings) || isset($settings['disable']))
|
|
879
|
continue;
|
|
880
|
|
|
881
|
$prot = $settings['protocol'];
|
|
882
|
$port = ($settings['local_port']) ? ":{$settings['local_port']}" : "";
|
|
883
|
|
|
884
|
$client = array();
|
|
885
|
$client['port'] = $settings['local_port'];
|
|
886
|
if ($settings['description'])
|
|
887
|
$client['name'] = "{$settings['description']} {$prot}{$port}";
|
|
888
|
else
|
|
889
|
$client['name'] = "Client {$prot}{$port}";
|
|
890
|
|
|
891
|
$vpnid = $settings['vpnid'];
|
|
892
|
$mode_id = "client{$vpnid}";
|
|
893
|
$client['mgmt'] = $mode_id;
|
|
894
|
$socket = "unix://{$g['varetc_path']}/openvpn/{$mode_id}.sock";
|
|
895
|
$client['status']="down";
|
|
896
|
|
|
897
|
$clients[] = openvpn_get_client_status($client, $socket);
|
|
898
|
}
|
|
899
|
}
|
|
900
|
return $clients;
|
|
901
|
}
|
|
902
|
|
|
903
|
function openvpn_get_client_status($client, $socket) {
|
|
904
|
$errval;
|
|
905
|
$errstr;
|
|
906
|
$fp = @stream_socket_client($socket, $errval, $errstr, 1);
|
|
907
|
if ($fp) {
|
|
908
|
stream_set_timeout($fp, 1);
|
|
909
|
/* send our status request */
|
|
910
|
fputs($fp, "state 1\n");
|
|
911
|
|
|
912
|
/* recv all response lines */
|
|
913
|
while (!feof($fp)) {
|
|
914
|
/* read the next line */
|
|
915
|
$line = fgets($fp, 1024);
|
|
916
|
|
|
917
|
$info = stream_get_meta_data($fp);
|
|
918
|
if ($info['timed_out'])
|
|
919
|
break;
|
|
920
|
|
|
921
|
/* Get the client state */
|
|
922
|
if (strstr($line,"CONNECTED")) {
|
|
923
|
$client['status']="up";
|
|
924
|
$list = explode(",", $line);
|
|
925
|
|
|
926
|
$client['connect_time'] = date("D M j G:i:s Y", $list[0]);
|
|
927
|
$client['virtual_addr'] = $list[3];
|
|
928
|
$client['remote_host'] = $list[4];
|
|
929
|
}
|
|
930
|
if (strstr($line,"CONNECTING")) {
|
|
931
|
$client['status']="connecting";
|
|
932
|
}
|
|
933
|
if (strstr($line,"ASSIGN_IP")) {
|
|
934
|
$client['status']="waiting";
|
|
935
|
$list = explode(",", $line);
|
|
936
|
|
|
937
|
$client['connect_time'] = date("D M j G:i:s Y", $list[0]);
|
|
938
|
$client['virtual_addr'] = $list[3];
|
|
939
|
}
|
|
940
|
if (strstr($line,"RECONNECTING")) {
|
|
941
|
$client['status']="reconnecting";
|
|
942
|
$list = explode(",", $line);
|
|
943
|
|
|
944
|
$client['connect_time'] = date("D M j G:i:s Y", $list[0]);
|
|
945
|
$client['status'] .= "; " . $list[2];
|
|
946
|
}
|
|
947
|
/* parse end of output line */
|
|
948
|
if (strstr($line, "END") || strstr($line, "ERROR"))
|
|
949
|
break;
|
|
950
|
}
|
|
951
|
|
|
952
|
/* If up, get read/write stats */
|
|
953
|
if (strcmp($client['status'], "up") == 0) {
|
|
954
|
fputs($fp, "status 2\n");
|
|
955
|
/* recv all response lines */
|
|
956
|
while (!feof($fp)) {
|
|
957
|
/* read the next line */
|
|
958
|
$line = fgets($fp, 1024);
|
|
959
|
|
|
960
|
$info = stream_get_meta_data($fp);
|
|
961
|
if ($info['timed_out'])
|
|
962
|
break;
|
|
963
|
|
|
964
|
if (strstr($line,"TCP/UDP read bytes")) {
|
|
965
|
$list = explode(",", $line);
|
|
966
|
$client['bytes_recv'] = $list[1];
|
|
967
|
}
|
|
968
|
|
|
969
|
if (strstr($line,"TCP/UDP write bytes")) {
|
|
970
|
$list = explode(",", $line);
|
|
971
|
$client['bytes_sent'] = $list[1];
|
|
972
|
}
|
|
973
|
|
|
974
|
/* parse end of output line */
|
|
975
|
if (strstr($line, "END"))
|
|
976
|
break;
|
|
977
|
}
|
|
978
|
}
|
|
979
|
|
|
980
|
fclose($fp);
|
|
981
|
|
|
982
|
} else {
|
|
983
|
$DisplayNote=true;
|
|
984
|
$client['remote_host'] = "No Management Daemon";
|
|
985
|
$client['virtual_addr'] = "See Note Below";
|
|
986
|
$client['bytes_recv'] = 0;
|
|
987
|
$client['bytes_sent'] = 0;
|
|
988
|
$client['connect_time'] = 0;
|
|
989
|
}
|
|
990
|
return $client;
|
|
991
|
}
|
|
992
|
|
|
993
|
function openvpn_refresh_crls() {
|
|
994
|
global $g, $config;
|
|
995
|
|
|
996
|
if (!file_exists($g['varetc_path']."/openvpn"))
|
|
997
|
return;
|
|
998
|
|
|
999
|
if (is_array($config['openvpn']['openvpn-server'])) {
|
|
1000
|
foreach ($config['openvpn']['openvpn-server'] as $settings) {
|
|
1001
|
if (empty($settings))
|
|
1002
|
continue;
|
|
1003
|
if (isset($settings['disable']))
|
|
1004
|
continue;
|
|
1005
|
// Write the settings for the keys
|
|
1006
|
switch($settings['mode']) {
|
|
1007
|
case 'p2p_tls':
|
|
1008
|
case 'server_tls':
|
|
1009
|
case 'server_tls_user':
|
|
1010
|
case 'server_user':
|
|
1011
|
if (!empty($settings['crlref'])) {
|
|
1012
|
$crl = lookup_crl($settings['crlref']);
|
|
1013
|
crl_update($crl);
|
|
1014
|
$fpath = $g['varetc_path']."/openvpn/server{$settings['vpnid']}.crl-verify";
|
|
1015
|
file_put_contents($fpath, base64_decode($crl['text']));
|
|
1016
|
@chmod($fpath, 0644);
|
|
1017
|
}
|
|
1018
|
break;
|
|
1019
|
}
|
|
1020
|
}
|
|
1021
|
}
|
|
1022
|
}
|
|
1023
|
|
|
1024
|
?>
|