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#!/usr/local/bin/php -f
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<?php
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/*
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rc.newwanip
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Copyright (C) 2006 Scott Ullrich (sullrich@gmail.com)
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part of pfSense (http://www.pfsense.com)
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Originally part of m0n0wall (http://m0n0.ch)
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Copyright (C) 2003-2005 Manuel Kasper <mk@neon1.net>.
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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 notice,
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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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notice, 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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*/
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/* parse the configuration and include all functions used below */
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require_once("globals.inc");
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require_once("config.inc");
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require_once("functions.inc");
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require_once("gwlb.inc");
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/* WAN IP address has changed */
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$argument = str_replace("\n", "", $argv[1]);
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log_error("Informational: rc.newwanip is starting {$argument}.");
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if(empty($argument)) {
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$curwanip = get_interface_ip();
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$interface = "wan";
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$interface_real = get_real_interface();
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} else {
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$interface = convert_real_interface_to_friendly_interface_name($argument);
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$interface_real = $argument;
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$curwanip = find_interface_ip($interface_real);
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if($curwanip == "")
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$curwanip = get_interface_ip($interface);
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}
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log_error("rc.newwanip working with (IP address: {$curwanip}) (interface: {$interface}) (interface real: {$interface_real}).");
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if($curwanip == "0.0.0.0") {
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log_error("Failed to update WAN IP, restarting dhclient.");
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exec("dhclient $interface_real");
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exit;
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}
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/* fallback to rc.newwanip ip if needed */
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if(!$old_ip)
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if(file_exists("{$g['vardb_path']}/{$interface}_ip"))
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$old_ip = trim(file_get_contents("{$g['vardb_path']}/{$interface}_ip", "\r"));
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if($old_ip) {
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$helpers = exec("/bin/ps awux | grep \"{$old_ip}\" | grep -v \"grep\" | awk '{ print $2 }'");
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if($helpers)
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mwexec("kill " . trim($helpers));
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} else {
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log_error("WARNING! /etc/rc.newwanip could not deterimine the previous ip address ( $interface ).");
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}
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/* reconfigure IPsec tunnels */
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vpn_ipsec_force_reload();
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/* start OpenVPN server & clients */
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exec("killall -HUP openvpn 2>/dev/null");
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/* regenerate resolv.conf if DNS overrides are allowed or the BigPond
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client is enabled */
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if (isset($config['system']['dnsallowoverride']))
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system_resolvconf_generate(true);
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/* perform RFC 2136 DNS update */
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services_dnsupdate_process();
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/* write current WAN IP to file */
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$fd = fopen("{$g['vardb_path']}/{$interface}_ip", "w");
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if ($fd) {
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fwrite($fd, $curwanip);
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fclose($fd);
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}
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log_error("Informational: DHClient spawned /etc/rc.newwanip and the new ip is {$interface} - {$curwanip}.");
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touch("/tmp/update_dyndns");
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/* signal filter reload */
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unlink_if_exists("/tmp/config.cache");
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filter_configure();
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/* reload graphing functions */
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enable_rrd_graphing();
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/* This is DHCP, update the gateway group items default gateway */
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update_gateway_groups_defaultroute_dhclient($interface);
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/* restart packages */
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if($old_ip <> "") {
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if($old_ip <> $curwanip) {
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mwexec_bg("/usr/local/sbin/ntpdate_sync_once.sh");
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exec("/etc/rc.start_packages");
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log_error("{$g['product_name']} package system has detected an ip change $old_ip -> $curwanip ... Restarting packages.");
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}
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}
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/* reconfigure our gateway monitor */
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setup_gateways_monitor();
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return 0;
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?>
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