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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("filter.inc");
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require_once("shaper.inc");
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require_once("ipsec.inc");
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require_once("vpn.inc");
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require_once("openvpn.inc");
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require_once("rrd.inc");
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// Do not process while booting
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if($g['booting'])
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exit;
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function restart_packages() {
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global $oldip, $curwanip, $g;
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/* restart packages */
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system_ntp_configure(false);
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mwexec_bg("/usr/local/sbin/ntpdate_sync_once.sh", true);
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log_error("{$g['product_name']} package system has detected an ip change $oldip -> $curwanip ... Restarting packages.");
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send_event("service reload packages");
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}
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/* Interface IP address has changed */
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$argument = str_replace("\n", "", $argv[1]);
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log_error("rc.newwanip: Informational is starting {$argument}.");
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if(empty($argument)) {
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$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 = $argument;
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}
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if(empty($argument))
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$curwanip = get_interface_ip();
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else {
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$curwanip = find_interface_ip($interface_real, true);
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if($curwanip == "")
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$curwanip = get_interface_ip($interface);
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}
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log_error("rc.newwanip: on (IP address: {$curwanip}) (interface: {$interface}) (real interface: {$interface_real}).");
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if($curwanip == "0.0.0.0" || !is_ipaddr($curwanip)) {
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log_error("rc.newwanip: Failed to update {$interface} IP, restarting...");
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send_event("interface reconfigure {$interface}");
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exit;
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}
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if (empty($interface)) {
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filter_configure();
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restart_packages();
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exit;
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}
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$oldip = "0.0.0.0";
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if (file_exists("{$g['vardb_path']}/{$interface}_cacheip"))
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$oldip = file_get_contents("{$g['vardb_path']}/{$interface}_cacheip");
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/* regenerate resolv.conf if DNS overrides are allowed */
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system_resolvconf_generate(true);
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/* write current WAN IP to file */
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file_put_contents("{$g['vardb_path']}/{$interface}_ip", $curwanip);
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link_interface_to_vips($interface, "update");
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unset($gre);
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$gre = link_interface_to_gre($interface);
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if (!empty($gre))
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array_walk($gre, 'interface_gre_configure');
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unset($gif);
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$gif = link_interface_to_gif($interface);
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if (!empty($gif))
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array_walk($gif, 'interface_gif_configure');
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$grouptmp = link_interface_to_group($interface);
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if (!empty($grouptmp))
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array_walk($grouptmp, 'interface_group_add_member');
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unset($bridgetmp);
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$bridgetmp = link_interface_to_bridge($interface);
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if (!empty($bridgetmp))
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interface_bridge_add_member($bridgetmp, $interface_real);
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/* make new hosts file */
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system_hosts_generate();
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/* check tunneled IPv6 interface tracking */
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switch($config['interfaces'][$interface]['ipaddrv6']) {
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case "6to4":
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interface_6to4_configure($interface, $config['interfaces'][$interface]);
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break;
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case "6rd":
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interface_6rd_configure($interface, $config['interfaces'][$interface]);
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break;
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}
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/* Check Gif tunnels */
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if(is_array($config['gifs']['gif'])){
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foreach($config['gifs']['gif'] as $gif) {
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if($gif['if'] == $interface) {
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foreach($config['interfaces'] as $ifname => $ifparent) {
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// echo "interface $ifparent, ifname $ifname, gif {$gif['gifif']}\n";
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if(($ifparent['if'] == $gif['gifif']) && (isset($ifparent['enable']))) {
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// echo "Running routing configure for $ifname\n";
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$gif['gifif'] = interface_gif_configure($gif);
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$confif = convert_real_interface_to_friendly_interface_name($gif['gifif']);
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if ($confif <> "")
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interface_configure($confif);
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system_routing_configure($ifname);
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}
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}
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}
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}
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}
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/*
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* We need to force sync VPNs on such even when the IP is the same for dynamic interfaces.
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* Even with the same IP the VPN software is unhappy with the IP disappearing, and we
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* could be failing back in which case we need to switch IPs back anyhow.
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*/
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if (!is_ipaddr($oldip) || $curwanip != $oldip || !is_ipaddrv4($config['interfaces'][$interface]['ipaddr'])) {
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/* reconfigure static routes (kernel may have deleted them) */
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system_routing_configure($interface);
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/* reconfigure our gateway monitor */
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setup_gateways_monitor();
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file_put_contents("{$g['vardb_path']}/{$interface}_cacheip", $curwanip);
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/* perform RFC 2136 DNS update */
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services_dnsupdate_process($interface);
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/* signal dyndns update */
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services_dyndns_configure($interface);
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/* reconfigure IPsec tunnels */
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vpn_ipsec_force_reload($interface);
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/* start OpenVPN server & clients */
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if (substr($interface_real, 0, 4) != "ovpn")
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openvpn_resync_all($interface);
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/* reload graphing functions */
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enable_rrd_graphing();
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/* reload igmpproxy */
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services_igmpproxy_configure();
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/* restart snmp */
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services_snmpd_configure();
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restart_packages();
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}
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/* signal filter reload */
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filter_configure();
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?>
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