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#!/usr/local/bin/php-cgi -f
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<?php
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/*
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* rc.newwanipv6
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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) 2014-2025 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("services.inc");
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require_once("rrd.inc");
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function restart_packages() {
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global $oldipv6, $curwanipv6, $g;
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/* restart packages */
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log_error("{$g['product_label']} package system has detected an IP change or dynamic WAN reconnection - $oldipv6 -> $curwanipv6 - Restarting packages.");
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send_event("service reload packages");
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}
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/* dhcp6c reasons: INFOREQ, REQUEST, RENEW, REBIND, RELEASE, EXIT */
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if (isset($_GET['reason'])) {
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$reason = $_GET['reason'];
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} else {
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$reason = trim($argv[4]);
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}
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/* Interface IP address has changed */
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if (isset($_GET['interface'])) {
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$argument = $_GET['interface'];
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} else {
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$argument = trim($argv[1], " \n\t");
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}
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if (!empty($reason) && ($reason != 'RENEW')) {
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log_error("rc.newwanipv6: Info: starting on {$argument} due to {$reason}.");
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} else {
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log_error("rc.newwanipv6: Info: starting on {$argument}.");
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}
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if (empty($argument)) {
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$interface = "wan";
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$interface_real = get_real_interface($interface, "inet6");
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$curwanipv6 = get_interface_ipv6($interface, true);
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} else {
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$interface_real = $argument;
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$interface = convert_real_interface_to_friendly_interface_name($interface_real);
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if (empty($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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$curwanipv6 = get_interface_ipv6($interface, true);
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}
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$interface_descr = convert_friendly_interface_to_friendly_descr($interface);
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if (empty($interface)) {
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log_error("rc.newwanipv6 called with empty interface");
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filter_configure();
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return;
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}
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/*
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* NOTE: Take care of openvpn and similar if you generate the event to reconfigure an interface.
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* i.e. OpenVPN might be in tap mode and not have an ip.
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*/
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if ((empty($curwanipv6) || !is_ipaddrv6($curwanipv6)) && substr($interface_real, 0, 4) != "ovpn") {
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log_error("rc.newwanipv6: No IPv6 address found for interface {$interface_descr} [{$interface}].");
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return;
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}
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if (isset($_GET['dmips'])) {
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$new_domain_name_servers = $_GET['dmips'];
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} else {
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$new_domain_name_servers = getenv("new_domain_name_servers");
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}
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if (!empty($new_domain_name_servers)) {
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$new_domain_name_servers_received = true;
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$name_servers = explode(" ", $new_domain_name_servers);
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$valid_ns = array();
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foreach ($name_servers as $ns) {
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if (is_ipaddrv6(trim($ns))) {
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$valid_ns[] = trim($ns);
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}
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}
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$saved_name_servers = file_get_contents("{$g['varetc_path']}/nameserver_v6{$interface}");
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if ($saved_name_servers !== false) {
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$saved_name_servers = array_filter(explode(PHP_EOL, $saved_name_servers));
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if ($saved_name_servers === $valid_ns) {
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$new_domain_name_servers_received = false;
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}
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}
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if ($new_domain_name_servers_received && count($valid_ns) > 0) {
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file_put_contents("{$g['varetc_path']}/nameserver_v6{$interface}", implode("\n", $valid_ns));
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}
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}
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if (isset($_GET['dmnames'])) {
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$new_domain_name = $_GET['dmnames'];
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} else {
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$new_domain_name = getenv("new_domain_name");
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}
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if (!empty($new_domain_name)) {
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$new_searchdomains_received = true;
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$saved_searchdomains = file_get_contents("{$g['varetc_path']}/searchdomain_v6{$interface}");
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if (($saved_searchdomains !== false) && ($saved_searchdomains === $new_domain_name)) {
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$new_searchdomains_received = false;
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}
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if ($new_searchdomains_received) {
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file_put_contents("{$g['varetc_path']}/searchdomain_v6{$interface}", $new_domain_name);
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}
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}
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/* write current WAN IPv6 to file */
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if (is_ipaddrv6($curwanipv6)) {
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@file_put_contents(g_get('vardb_path') . "/{$interface_real}_ipv6", $curwanipv6);
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}
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$oldipv6 = '';
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if (file_exists(g_get('vardb_path') . "/{$interface_real}_cacheipv6")) {
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$oldipv6 = file_get_contents(g_get('vardb_path') . "/{$interface_real}_cacheipv6");
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}
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/**
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* @var bool Used for only taking action when the address is replaced.
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*/
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$address_replaced = true;
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if (($curwanipv6 == $oldipv6) && (substr($interface_real, 0, 4) != "ovpn")) {
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/**
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* Reasons other than RENEW may replace the current address with the
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* same one causing the address to temporarily disappear - this is
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* also considered a change.
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*/
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switch ($reason) {
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case 'RENEW':
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$address_replaced = false;
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break;
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default:
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break;
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}
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}
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/**
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* @var bool Used for only action when the DNS information changes.
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*/
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$dns_changed = true;
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if (($new_domain_name_servers_received === false) && ($new_searchdomains_received === false)) {
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$dns_changed = false;
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}
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// Only continue on RENEW if there has been a change.
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if (($reason == 'RENEW') && !$address_replaced && !$dns_changed) {
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return;
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}
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if ($reason == 'RENEW') {
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log_error("rc.newwanipv6: Info: received {$reason} on {$argument} (previous IP address: {$oldipv6}).");
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}
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log_error("rc.newwanipv6: on (IP address: {$curwanipv6}) (interface: {$interface}) (real interface: {$interface_real}).");
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if (($reason != 'RENEW') || $address_replaced) {
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$grouptmp = link_interface_to_group($interface);
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if (!empty($grouptmp)) {
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array_walk($grouptmp, 'interface_group_add_member');
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}
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link_interface_to_track6($interface, "update");
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}
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if (($reason != 'RENEW') || $dns_changed) {
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/* regenerate resolv.conf if DNS overrides are allowed */
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system_resolvconf_generate(true);
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}
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/* reconfigure our gateway monitor, dpinger results need to be
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* available when configuring the default gateway */
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setup_gateways_monitor();
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/* reconfigure static routes (kernel may have deleted them) */
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system_routing_configure($interface);
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if (is_platform_booting()) {
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// avoid race conditions in many of the below functions that occur during boot
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touch("/tmp/{$interface_real}_dhcp6_complete");
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exit;
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}
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/* signal filter reload */
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filter_configure();
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$srvupdate = true;
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if (empty($oldipv6) || is_ipaddrv6($oldipv6)) {
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if (($curwanipv6 == $oldipv6) && !file_exists("{$g['tmp_path']}/{$interface}_upstart6")) {
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// Still need to sync VPNs on PPPoE and such, as even with the same IP the VPN software is unhappy with the IP disappearing.
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if (!in_array(config_get_path("interfaces/{$interface}/ipaddr"), array('pppoe', 'pptp', 'ppp'))) {
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return;
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} else {
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$srvupdate = false;
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}
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} elseif (($reason != 'RENEW') && does_interface_exist($interface_real) && !empty($oldipv6)) {
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/**
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* Don't call this on RENEW since dhcp6c already removes the old
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* address and adds the new one.
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*/
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mwexec("/sbin/ifconfig {$interface_real} inet6 {$oldipv6} delete");
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}
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file_put_contents(g_get('vardb_path') . "/{$interface_real}_cacheipv6", $curwanipv6);
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}
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if ($srvupdate) {
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/* reload unbound */
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services_unbound_configure(true, $interface);
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/* perform RFC 2136 DNS update */
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services_dnsupdate_process($interface);
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/* signal dyndns update */
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services_dyndns_configure($interface);
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}
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/* reconfigure IPsec tunnels */
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ipsec_force_reload($interface, 'inet6');
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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, 'inet6');
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}
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/* reconfigure GRE/GIF tunnels */
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$gre = link_interface_to_tunnelif($interface, 'gre', 'inet6');
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array_walk($gre, 'interface_gre_configure');
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$gif = link_interface_to_tunnelif($interface, 'gif', 'inet6');
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array_walk($gif, 'interface_gif_configure');
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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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if ($srvupdate) {
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/* reload graphing functions */
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enable_rrd_graphing();
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restart_packages();
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}
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unlink_if_exists("{$g['tmp_path']}/{$interface}_upstart6");
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if (empty(config_get_path("interfaces/{$interface}/ipaddr"))) {
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unlink_if_exists("{$g['tmp_path']}/{$interface}_upstart4");
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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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