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#!/usr/local/bin/php-cgi -f
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<?php
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/*
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* rc.carpbackup
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*
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* part of pfSense (https://www.pfsense.org)
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* Copyright (c) 2004-2018 Rubicon Communications, LLC (Netgate)
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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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require_once("functions.inc");
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require_once("config.inc");
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require_once("notices.inc");
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require_once("openvpn.inc");
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require_once("interfaces.inc");
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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", "", $argv[1]);
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}
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if (!strstr($argument, "@")) {
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log_error("CARP master event triggered from wrong source {$argument}");
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exit;
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}
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list($vhid, $iface) = explode("@", $argument);
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$friendly = convert_real_interface_to_friendly_interface_name($iface);
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$friendly_descr = convert_friendly_interface_to_friendly_descr($friendly);
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$vips = link_interface_to_vips($friendly, '', $vhid);
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if (!is_array($vips)) {
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log_error("CARP master event triggered from wrong source {$argument} - no associated VIPs");
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exit;
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}
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foreach ($vips as $vip) {
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$notificationmsg = sprintf('HA cluster member "(%1$s@%2$s): (%3$s)" has resumed CARP state "BACKUP" for vhid %4$s',
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$vip['subnet'], $iface, $friendly_descr, $vhid);
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notify_via_smtp($notificationmsg);
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notify_via_growl($notificationmsg);
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log_error($notificationmsg);
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}
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restart_ppp_interfaces_using_interfaces($vips);
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/* Stop OpenVPN clients running on this VIP, since multiple active OpenVPN clients on a CARP cluster can be problematic. */
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global $config;
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$a_groups = return_gateway_groups_array(true);
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if (is_array($config['openvpn']) && is_array($config['openvpn']['openvpn-client'])) {
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foreach ($config['openvpn']['openvpn-client'] as $settings) {
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if (substr($settings['interface'], 0, 4) == '_vip') {
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$openvpn_vip = $settings['interface'];
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} else if (is_array($a_groups[$settings['interface']])) {
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// interface is a gateway group, check CARP VIP
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if (substr($a_groups[$settings['interface']][0]['vip'], 0, 4) == '_vip') {
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$openvpn_vip = $a_groups[$settings['interface']][0]['vip'];
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}
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} else {
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// this OpenVPN instance not on a CARP IP
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continue;
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}
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foreach ($vips as $vip) {
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if ($openvpn_vip == "_vip{$vip['uniqid']}") {
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log_error("Stopping OpenVPN client instance on {$friendly_descr} because of transition to CARP backup.");
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openvpn_restart('client', $settings);
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}
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}
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}
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}
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if (is_array($config['openvpn']) && is_array($config['openvpn']['openvpn-server'])) {
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foreach ($config['openvpn']['openvpn-server'] as $settings) {
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if (substr($settings['interface'], 0, 4) == '_vip') {
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$openvpn_vip = $settings['interface'];
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} else if (is_array($a_groups[$settings['interface']])) {
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// interface is a gateway group, check CARP VIP
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if (substr($a_groups[$settings['interface']][0]['vip'], 0, 4) == '_vip') {
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$openvpn_vip = $a_groups[$settings['interface']][0]['vip'];
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}
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} else {
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// this OpenVPN instance not on a CARP IP
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continue;
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}
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foreach ($vips as $vip) {
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if ($openvpn_vip == "_vip{$vip['uniqid']}") {
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log_error("Stopping OpenVPN server instance on {$friendly_descr} because of transition to CARP backup.");
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openvpn_restart('server', $settings);
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}
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}
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}
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}
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/* Reconfigure radvd when necessary */
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if (isset($config['dhcpdv6']) && is_array($config['dhcpdv6'])) {
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$rafound = false;
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foreach ($config['dhcpdv6'] as $dhcpv6if => $dhcpv6ifconf) {
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foreach ($vips as $vip) {
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if ($dhcpv6ifconf['rainterface'] == "_vip{$vip['uniqid']}") {
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log_error("Stopping radvd instance on {$friendly_descr} because of transition to CARP master.");
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$rafound = true;
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}
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}
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}
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if ($rafound) {
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services_radvd_configure();
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}
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}
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$pluginparams = array();
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$pluginparams['type'] = 'carp';
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$pluginparams['event'] = 'rc.carpbackup';
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$pluginparams['interface'] = $argument;
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pkg_call_plugins('plugin_carp', $pluginparams);
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?>
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