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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) 2006-2013 BSD Perimeter
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* Copyright (c) 2013-2016 Electric Sheep Fencing
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* Copyright (c) 2014-2024 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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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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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("Net/IPv6.php");
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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_label']} 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($argument);
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if (empty($interface)) {
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log_error("Interface is unassigned, nothing to do.");
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return;
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}
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$interface_real = $argument;
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}
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$interface_descr = convert_friendly_interface_to_friendly_descr($interface);
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/* If the interface is configured and not enabled, bail. We do not need to change settings for disabled interfaces. #3313 */
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if (is_array(config_get_path("interfaces/{$interface}")) && !config_path_enabled("interfaces/{$interface}")) {
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log_error("Interface is disabled, nothing to do.");
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return;
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}
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if (empty($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($interface_real, 0, 4) != "ovpn") {
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if (!empty(config_get_path("interfaces/{$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($interface)) {
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if (is_platform_booting()) {
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return;
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}
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log_error("rc.newwanip called with empty interface.");
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filter_configure();
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restart_packages();
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return;
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}
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$oldip = "0.0.0.0";
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if (file_exists(g_get('vardb_path') . "/{$interface_real}_cacheip")) {
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$oldip = file_get_contents(g_get('vardb_path') . "/{$interface_real}_cacheip");
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}
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/* regenerate resolv.conf */
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system_resolvconf_generate(true);
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/* write the current interface IP to file */
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if (is_ipaddr($curwanip)) {
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@file_put_contents(g_get('vardb_path') . "/{$interface_real}_ip", $curwanip);
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}
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link_interface_to_vips($interface, "update");
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$gre = link_interface_to_tunnelif($interface, 'gre', 'inet');
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array_walk($gre, 'interface_gre_configure');
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$gif = link_interface_to_tunnelif($interface, 'gif', 'inet');
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array_walk($gif, 'interface_gif_configure');
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/* reconfigure L2TP/PPTP tunnels, see https://redmine.pfsense.org/issues/12072 */
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$ppp = link_interface_to_ppp_tunnelif($interface);
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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, $interface_real);
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}
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/* make new hosts file */
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system_hosts_generate();
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/* check tunnelled IPv6 interface tracking */
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switch (config_get_path("interfaces/{$interface}/ipaddrv6")) {
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case "6to4":
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interface_6to4_configure($interface, config_get_path("interfaces/{$interface}"));
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break;
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case "6rd":
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interface_6rd_configure($interface, config_get_path("interfaces/{$interface}"));
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break;
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case "slaac":
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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 ((((config_get_path("interfaces/{$interface}/ipaddrv6") == 'dhcp6') &&
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config_path_enabled("interfaces/{$interface}", 'dhcp6usev4iface')) ||
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((config_get_path("interfaces/{$interface}/ipaddrv6") == 'slaac') &&
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config_path_enabled("interfaces/{$interface}", 'slaacusev4iface'))) &&
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!interface_isppp_type($interface)) {
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interface_dhcpv6_configure($interface, config_get_path("interfaces/{$interface}"));
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}
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break;
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default:
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break;
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}
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/* Check Gif tunnels */
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foreach ($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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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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foreach ($ppp as $ppptun) {
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$confif = convert_real_interface_to_friendly_interface_name($ppptun['if']);
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if (!empty($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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if (is_platform_booting() && !in_array(substr($interface_real, 0, 3), array("ppp", "ppt", "l2t"))) {
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// unlike dhcp interfaces which wait until they get an ip, a ppp connection lets the boot continue while
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// trying to acquire a ip address so to avoid a race condition where it would be possible that the default
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// route would not be set, this script must continue to use the new assigned ip even while booting
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// https://redmine.pfsense.org/issues/8561
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// avoid race conditions in many of the below functions that occur during boot
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// setting up gateways monitor doesn't seem to have issues here, and fixes the
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// most commonly encountered bugs from earlier versions when everything below
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// was skipped during boot
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filter_configure_sync();
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setup_gateways_monitor();
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// Make sure the default gateway is set up after DHCP succeeds. See:
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// https://redmine.pfsense.org/issues/15791
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system_routing_configure($interface);
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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 != $oldip) || file_exists("{$g['tmp_path']}/{$interface}_upstart4") ||
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(!is_ipaddrv4(config_get_path("interfaces/{$interface}/ipaddr")) && (config_get_path("interfaces/{$interface}/ipaddr") != 'dhcp'))) {
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/*
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* Some services (e.g. dyndns, see ticket #4066) depend on
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* filter_configure() to be called before, otherwise pass out
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* route-to rules have the old ip set in 'from' and connections
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* do not go through the correct link
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*/
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filter_configure_sync();
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/* reconfigure our gateway monitor, dpinger results need to be
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* available when configuring the default gateway */
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setup_gateways_monitor();
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/* reconfigure static routes (kernel may have deleted them) */
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system_routing_configure($interface);
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/* If the IP address changed, kill old states after rules and routing have been updated */
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if ($curwanip != $oldip) {
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if (config_path_enabled('system', 'ip_change_kill_states')) {
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log_error("IP Address has changed, killing all states (ip_change_kill_states is set).");
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filter_flush_state_table();
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} else {
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log_error("IP Address has changed, killing states on former IP Address $oldip.");
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pfSense_kill_states($oldip);
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}
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}
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/* reload unbound */
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services_unbound_configure(true, $interface);
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if (is_ipaddr($curwanip)) {
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@file_put_contents(g_get('vardb_path') . "/{$interface_real}_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($interface);
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/* reconfigure IPsec tunnels */
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ipsec_force_reload($interface, 'inet');
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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, 'inet');
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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($interface);
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/* restart snmp */
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services_snmpd_configure($interface);
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/* restart L2TP VPN */
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vpn_l2tp_configure($interface);
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restart_packages();
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unlink_if_exists("{$g['tmp_path']}/{$interface}_upstart4");
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if (empty(config_get_path("interfaces/{$interface}/ipaddrv6"))) {
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unlink_if_exists("{$g['tmp_path']}/{$interface}_upstart6");
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}
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}
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/* Unconditional filter reload to ensure the correct rules and gateways are
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* active after this script has processed all changes.
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* See https://redmine.pfsense.org/issues/13228 */
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filter_configure();
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?>
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