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#!/usr/local/bin/php-cgi -f
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<?php
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/*
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* rc.newwanip
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*
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* part of pfSense (https://www.pfsense.org)
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* Copyright (c) 2006-2016 Rubicon Communications, LLC (Netgate)
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* All rights reserved.
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*
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* Originally part of m0n0wall (http://m0n0.ch/wall)
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* Copyright (c) 2003-2005 Manuel Kasper <mk@neon1.net>.
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* All rights reserved.
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*
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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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*
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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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*
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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
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgment:
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* "This product includes software developed by the pfSense Project
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* for use in the pfSense® software distribution. (http://www.pfsense.org/).
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*
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* 4. The names "pfSense" and "pfSense Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* coreteam@pfsense.org.
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*
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* 5. Products derived from this software may not be called "pfSense"
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* nor may "pfSense" appear in their names without prior written
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* permission of the Electric Sheep Fencing, LLC.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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*
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* "This product includes software developed by the pfSense Project
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* for use in the pfSense software distribution (http://www.pfsense.org/).
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*
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* THIS SOFTWARE IS PROVIDED BY THE pfSense PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE pfSense PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* 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
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* OF THE 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("IPv6.inc");
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require_once("rrd.inc");
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function restart_packages() {
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global $oldip, $curwanip, $g;
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/* restart packages */
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log_error("{$g['product_name']} package system has detected an IP change or dynamic WAN reconnection - $oldip -> $curwanip - Restarting packages.");
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send_event("service reload packages");
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}
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/* Interface IP address has changed */
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if (isset($_GET['interface'])) {
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$argument = $_GET['interface'];
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} else {
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$argument = str_replace("\n", "", $argv[1]);
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}
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log_error("rc.newwanip: Info: starting on {$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 = $argument;
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}
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$interface_descr = convert_friendly_interface_to_friendly_descr($interface);
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/* If the interface is configured and not enabled, bail. We do not need to change settings for disabled interfaces. #3313 */
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if (is_array($config['interfaces'][$interface]) && !isset($config['interfaces'][$interface]['enable'])) {
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log_error("Interface is disabled, nothing to do.");
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return;
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}
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if (empty($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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}
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log_error("rc.newwanip: on (IP address: {$curwanip}) (interface: {$interface_descr}[{$interface}]) (real interface: {$interface_real}).");
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/*
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* NOTE: Take care of openvpn, no-ip or similar interfaces if you generate the event to reconfigure an interface.
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* i.e. OpenVPN might be in tap mode and not have an ip.
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*/
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if ($curwanip == "0.0.0.0" || !is_ipaddr($curwanip)) {
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if (substr($interface_real, 0, 4) != "ovpn") {
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if (!empty($config['interfaces'][$interface]['ipaddr'])) {
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log_error("rc.newwanip: Failed to update {$interface} IP, restarting...");
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send_event("interface reconfigure {$interface}");
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return;
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}
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}
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}
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/* XXX: This really possible? */
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if (empty($interface)) {
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if (platform_booting()) {
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return;
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}
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log_error("rc.newwanip called with empty interface.");
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filter_configure();
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restart_packages();
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return;
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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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}
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/* regenerate resolv.conf */
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system_resolvconf_generate(true);
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/* write the current interface IP to file */
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if (is_ipaddr($curwanip)) {
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@file_put_contents("{$g['vardb_path']}/{$interface}_ip", $curwanip);
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}
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link_interface_to_vips($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($gre, 'interface_gre_configure');
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}
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unset($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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}
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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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}
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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, $interface_real);
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}
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/* make new hosts file */
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system_hosts_generate();
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/* check tunnelled IPv6 interface tracking */
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switch ($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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case "dhcp6":
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// N.B. PPP connections using PPP as the IPv6 parent interface are excluded because the ppp-ipv6 script calls
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// interface_dhcpv6_configure() for these connections after IPv6CP is up
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if (isset($config['interfaces'][$interface]['dhcp6usev4iface']) && !interface_isppp_type($interface)) {
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interface_dhcpv6_configure($interface, $config['interfaces'][$interface]);
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}
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break;
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}
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/* Check Gif tunnels */
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if (!empty($gif)) {
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foreach ($gif as $giftun) {
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$confif = convert_real_interface_to_friendly_interface_name($giftun['gifif']);
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if (!empty($confif)) {
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interface_configure($confif);
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system_routing_configure($confif);
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}
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}
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}
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if (!empty($gre)) {
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foreach ($gre as $gretun) {
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$confif = convert_real_interface_to_friendly_interface_name($gretun['greif']);
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if (!empty($confif)) {
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interface_configure($confif);
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system_routing_configure($confif);
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}
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}
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}
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if (platform_booting()) {
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// avoid race conditions in many of the below functions that occur during boot
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// setting up gateways monitor doesn't seem to have issues here, and fixes the
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// most commonly encountered bugs from earlier versions when everything below
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// was skipped during boot
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setup_gateways_monitor();
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exit;
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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'][$interface]['ipaddr'])) {
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/* IP changed, kill states accordingly */
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if ($curwanip != $oldip) {
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log_error("IP has changed, killing states on former IP $oldip.");
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pfSense_kill_states($oldip);
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if (isset($config['system']['ip_change_kill_states'])) {
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/* hidden config option to wipe all states if needed */
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log_error("Killing all states post-IP change.");
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filter_flush_state_table();
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}
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}
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/*
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* Some services (e.g. dyndns, see ticket #4066) depend on
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* filter_configure() to be called before, otherwise pass out
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* route-to rules have the old ip set in 'from' and connections
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* do not go through the correct link
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*/
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filter_configure_sync();
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/* reconfigure static routes (kernel may have deleted them) */
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system_routing_configure($interface);
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/* reconfigure our gateway monitor */
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setup_gateways_monitor();
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/* reload unbound */
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services_unbound_configure();
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if (is_ipaddr($curwanip)) {
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@file_put_contents("{$g['vardb_path']}/{$interface}_cacheip", $curwanip);
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}
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/* perform RFC 2136 DNS update */
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services_dnsupdate_process($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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}
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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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} else {
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/* signal filter reload */
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filter_configure();
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}
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?>
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