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#!/usr/local/bin/php -f
<?php
/*
rc.newwanip
part of m0n0wall (http://m0n0.ch/wall)
Copyright (C) 2003-2005 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.
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS 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
AUTHOR 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("config.inc");
require_once("functions.inc");
/* WAN IP address has changed */
if($argv[1] <> "") {
$curwanip = find_interface_ip($argv[1]);
$interface = $argv[1];
} else {
$curwanip = get_current_wan_address();
$interface = "wan";
}
/* dhclient or MPD told us that the IP address has changed;
let's see if that's really true to avoid reloading things
when it's not really necessary (dhclient likes to
execute its dhclient-exit-hooks also on renewals)
*/
if (file_exists("{$g['vardb_path']}/{$interface}_ip")) {
$oldwanip = chop(file_get_contents("{$g['vardb_path']}/{$interface}_ip"));
log_error("Informational: DHClient spawned /etc/rc.newwanip but the ip has not changed.");
if ($curwanip == $oldwanip)
return 0; /* nothing to do */
}
/* reconfigure IPsec tunnels */
vpn_ipsec_configure(true);
/* regenerate resolv.conf if DNS overrides are allowed or the BigPond
client is enabled */
if (isset($config['system']['dnsallowoverride']) ||
($config['interfaces'][$interface]['ipaddr'] == "bigpond"))
system_resolvconf_generate(true);
/* fire up the BigPond client, if necessary */
if ($config['interfaces'][$interface]['ipaddr'] == "bigpond")
interfaces_wan_bigpond_configure($curwanip);
/* perform RFC 2136 DNS update */
services_dnsupdate_process();
/* write current WAN IP to file */
$fd = @fopen("{$g['vardb_path']}/{$interface}_ip", "w");
if ($fd) {
fwrite($fd, $curwanip);
fclose($fd);
}
log_error("Informational: DHClient spawned /etc/rc.newwanip and the new ip is {$interface} - {$curwanip}.");
/* after IP change, update DynDNS */
if(!$config['system']['use_old_dyndns']) {
services_dyndns_configure();
}
filter_configure();
return 0;
?>
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