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#!/usr/local/bin/php-cgi -f
<?php
/*
* rc.openvpn
*
* part of pfSense (https://www.pfsense.org)
* Copyright (c) 2009 Seth Mos <seth.mos@dds.nl>.
* Copyright (c) 2007-2016 Electric Sheep Fencing, LLC
* All rights reserved.
*
* Originally part of m0n0wall (http://m0n0.ch/wall)
* Copyright (c) 2007 Manuel Kasper <mk@neon1.net>.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgment:
* "This product includes software developed by the pfSense Project
* for use in the pfSense® software distribution. (http://www.pfsense.org/).
*
* 4. The names "pfSense" and "pfSense Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* coreteam@pfsense.org.
*
* 5. Products derived from this software may not be called "pfSense"
* nor may "pfSense" appear in their names without prior written
* permission of the Electric Sheep Fencing, LLC.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
*
* "This product includes software developed by the pfSense Project
* for use in the pfSense software distribution (http://www.pfsense.org/).
*
* THIS SOFTWARE IS PROVIDED BY THE pfSense PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE pfSense PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/* parse the configuration and include all functions used below */
require_once("util.inc");
require_once("config.inc");
require_once("functions.inc");
require_once("filter.inc");
require_once("gwlb.inc");
require_once("openvpn.inc");
function openvpn_resync_if_needed ($mode, $ovpn_settings, $interface) {
global $g, $config;
$resync_needed = true;
if (isset($ovpn_settings['disable'])) {
$resync_needed = false;
} else {
if (!empty($interface)) {
$mode_id = $mode . $ovpn_settings['vpnid'];
$fpath = "{$g['varetc_path']}/openvpn/{$mode_id}.interface";
if (file_exists($fpath)) {
/* Compare the interface currently used by the VPN with the interface that should be used.
If the VPN should stay on the same interface, do not resync */
if (trim(file_get_contents($fpath), " \t\n") == get_failover_interface($ovpn_settings['interface'])) {
$resync_needed = false;
}
}
}
}
if ($resync_needed == true) {
log_error("OpenVPN: Resync " . $mode_id . " " . $ovpn_settings['description']);
openvpn_resync($mode, $ovpn_settings);
}
}
/* make sure to wait until the boot scripts have finished */
if (file_exists("{$g['varrun_path']}/booting")) {
return;
}
/* Input argument is a comma-separated list of gateway names, blank or "all". */
if (isset($_GET['interface'])) {
$argument = $_GET['interface'];
} else {
$argument = trim($argv[1], " \n");
}
if ((is_array($config['openvpn']['openvpn-server']) && count($config['openvpn']['openvpn-server'])) ||
(is_array($config['openvpn']['openvpn-client']) && count($config['openvpn']['openvpn-client']))) {
if (empty($argument) || $argument == "all") {
$argument = "all";
$log_text = "all";
} else {
$log_text = "endpoints that may use " . $argument;
}
log_error("OpenVPN: One or more OpenVPN tunnel endpoints may have changed its IP. Reloading " . $log_text . ".");
} else {
return;
}
$openvpnlck = try_lock('openvpn', 10);
if (!$openvpnlck) {
log_error(gettext("Could not obtain openvpn lock for executing rc.openvpn for more than 10 seconds continuing..."));
unlock_force('openvpn');
$openvpnlck = lock('openvpn', LOCK_EX);
}
$arg_array = explode(",", $argument);
foreach ($arg_array as $arg_element) {
$gwgroups = array();
if ($arg_element == "all") {
$interface = "";
} else {
// e.g. $arg_element = "WANGW", $interface = "wan"
$interface = lookup_gateway_interface_by_name($arg_element);
if (empty($interface)) {
$interface = $arg_element;
} else {
// e.g. $arg_element = "WANGW", $gwgroups = array of gateway groups that use "wan"
$gwgroups = gateway_is_gwgroup_member($arg_element);
}
}
if (is_array($config['openvpn']['openvpn-server'])) {
foreach ($config['openvpn']['openvpn-server'] as &$server) {
if ($server['interface'] == $interface || empty($interface) || (!empty($gwgroups) && in_array($server['interface'], $gwgroups))) {
openvpn_resync_if_needed('server', $server, $interface);
}
}
}
if (is_array($config['openvpn']['openvpn-client'])) {
foreach ($config['openvpn']['openvpn-client'] as &$client) {
if ($client['interface'] == $interface || empty($interface) || (!empty($gwgroups) && in_array($client['interface'], $gwgroups))) {
openvpn_resync_if_needed('client', $client, $interface);
}
}
}
}
unlock($openvpnlck);
?>
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