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<?php
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/* $Id$ */
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/*
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vslb.inc
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Copyright (C) 2005-2008 Bill Marquette
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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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/*
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pfSense_BUILDER_BINARIES: /usr/local/sbin/relayd
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pfSense_MODULE: routing
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*/
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/* DISABLE_PHP_LINT_CHECKING */
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/* include all configuration functions */
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class Monitor {
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private $conf = array();
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function __construct($config) {
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$this->conf = $config;
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}
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public function p() {
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return "check {$this->get('proto')}";
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}
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private function get($var) {
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return isset($this->$var) ? $this->$var : "";
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}
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protected function config($element) {
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return isset($this->conf[$element]) ? $this->conf[$element] : "";
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}
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}
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class TCPMonitor extends Monitor {
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protected $proto = 'tcp';
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}
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class SSLMonitor extends Monitor {
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protected $proto = 'ssl';
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}
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class ICMPMonitor extends Monitor {
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protected $proto = 'icmp';
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}
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class HTTPMonitor extends Monitor {
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protected $proto = 'http';
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function __construct($config) {
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parent::__construct($config);
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}
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public function p() {
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$method = ($this->code() != "") ? $this->code() : $this->digest();
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return "check {$this->proto} {$this->path()} {$this->host()} {$method}";
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}
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private function path() {
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return $this->config('path') != "" ? "'{$this->config('path')}'" : "";
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}
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private function host() {
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return $this->config('host') != "" ? "host {$this->config('host')}" : "";
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}
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private function code() {
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return $this->config('code') != "" ? "code {$this->config('code')}" : "";
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}
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private function digest() {
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return $this->config('digest') != "" ? "digest {$this->config('digest')}" : "";
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}
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}
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class HTTPSMonitor extends HTTPMonitor {
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protected $proto = 'https';
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}
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class SendMonitor extends Monitor {
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private $proto = 'send';
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function __construct($config) {
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parent::__construct($config);
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}
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public function p() {
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return "check {$this->proto} {$this->data()} expect {$this->pattern()} {$this->ssl()}";
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}
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private function data() {
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return $this->config('send') != "" ? "\"{$this->config('send')}\"" : "\"\"";
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}
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private function pattern() {
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return $this->config('expect') != "" ? "\"{$this->config('expect')}\"" : "\"\"";
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}
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private function ssl() {
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return $this->config('ssl') == true ? "ssl" : "";
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}
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}
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function echo_lbaction($action) {
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global $config;
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// Index actions by name
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$actions_a = array();
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for ($i=0; isset($config['load_balancer']['lbaction'][$i]); $i++)
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$actions_a[$config['load_balancer']['lbaction'][$i]['name']] = $config['load_balancer']['lbaction'][$i];
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$ret = "";
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$ret .= "{$actions_a[$action]['direction']} {$actions_a[$action]['type']} {$actions_a[$action]['action']}";
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switch($actions_a[$action]['action']) {
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case 'append':
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$ret .= " \"{$actions_a[$action]['options']['value']}\" to \"{$actions_a[$action]['options']['akey']}\"";
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break;
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case 'change':
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$ret .= " \"{$actions_a[$action]['options']['akey']}\" to \"{$actions_a[$action]['options']['value']}\"";
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break;
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case 'expect':
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$ret .= " \"{$actions_a[$action]['options']['value']}\" from \"{$actions_a[$action]['options']['akey']}\"";
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break;
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case 'filter':
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$ret .= " \"{$actions_a[$action]['options']['value']}\" from \"{$actions_a[$action]['options']['akey']}\"";
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break;
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case 'hash':
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$ret .= " \"{$actions_a[$action]['options']['akey']}\"";
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break;
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case 'log':
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$ret .= " \"{$actions_a[$action]['options']['akey']}\"";
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break;
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}
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return $ret;
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}
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function relayd_configure($kill_first=false) {
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global $config, $g;
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require_once("filter.inc");
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$vs_a = $config['load_balancer']['virtual_server'];
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$pool_a = $config['load_balancer']['lbpool'];
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$protocol_a = $config['load_balancer']['lbprotocol'];
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$setting = $config['load_balancer']['setting'];
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$check_a = array();
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foreach ((array)$config['load_balancer']['monitor_type'] as $type) {
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switch($type['type']) {
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case 'icmp':
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$mon = new ICMPMonitor($type['options']);
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break;
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case 'tcp':
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$mon = new TCPMonitor($type['options']);
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break;
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case 'http':
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$mon = new HTTPMonitor($type['options']);
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break;
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case 'https':
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$mon = new HTTPSMonitor($type['options']);
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break;
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case 'send':
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$mon = new SendMonitor($type['options']);
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break;
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}
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if($mon) {
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$check_a[$type['name']] = $mon->p();
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}
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}
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$fd = fopen("{$g['varetc_path']}/relayd.conf", "w");
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$conf .= "log updates \n";
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/* Global timeout, interval and prefork settings
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if not specified by the user:
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- use a 1000 ms timeout value as in pfsense 2.0.1 and above
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- leave interval and prefork empty, relayd will use its default values */
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if (isset($setting['timeout']) && !empty($setting['timeout'])) {
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$conf .= "timeout ".$setting['timeout']." \n";
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} else {
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$conf .= "timeout 1000 \n";
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}
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if (isset($setting['interval']) && !empty($setting['interval'])) {
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$conf .= "interval ".$setting['interval']." \n";
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}
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if (isset($setting['prefork']) && !empty($setting['prefork'])) {
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$conf .= "prefork ".$setting['prefork']." \n";
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}
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/* reindex pools by name as we loop through the pools array */
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$pools = array();
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/* Virtual server pools */
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if(is_array($pool_a)) {
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for ($i = 0; isset($pool_a[$i]); $i++) {
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if(is_array($pool_a[$i]['servers'])) {
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if (!empty($pool_a[$i]['retry'])) {
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$retrytext = " retry {$pool_a[$i]['retry']}";
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} else {
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$retrytext = "";
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}
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$conf .= "table <{$pool_a[$i]['name']}> {\n";
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foreach ($pool_a[$i]['servers'] as $server) {
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if (is_subnetv4($server)) {
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foreach (subnetv4_expand($server) as $ip) {
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$conf .= "\t{$ip}{$retrytext}\n";
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}
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}
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else {
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$conf .= "\t{$server}{$retrytext}\n";
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}
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}
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$conf .= "}\n";
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/* Index by name for easier fetching when we loop through the virtual servers */
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$pools[$pool_a[$i]['name']] = $pool_a[$i];
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}
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}
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}
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// if(is_array($protocol_a)) {
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// for ($i = 0; isset($protocol_a[$i]); $i++) {
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// $proto = "{$protocol_a[$i]['type']} protocol \"{$protocol_a[$i]['name']}\" {\n";
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// if(is_array($protocol_a[$i]['lbaction'])) {
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// if($protocol_a[$i]['lbaction'][0] == "") {
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// continue;
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// }
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// for ($a = 0; isset($protocol_a[$i]['lbaction'][$a]); $a++) {
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// $proto .= " " . echo_lbaction($protocol_a[$i]['lbaction'][$a]) . "\n";
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// }
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// }
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// $proto .= "}\n";
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// $conf .= $proto;
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// }
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// }
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$conf .= "dns protocol \"dnsproto\" {\n";
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$conf .= "\t" . "tcp { nodelay, sack, socket buffer 1024, backlog 1000 }\n";
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$conf .= "}\n";
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262
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if(is_array($vs_a)) {
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for ($i = 0; isset($vs_a[$i]); $i++) {
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264
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265
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$append_port_to_name = false;
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266
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if (is_alias($vs_a[$i]['port'])) {
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$src_port_array = filter_expand_alias_array($vs_a[$i]['port']);
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$append_port_to_name = true;
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}
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else {
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$src_port_array = array($vs_a[$i]['port']);
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}
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if (is_alias($pools[$vs_a[$i]['pool']]['port'])) {
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$dest_port_array = filter_expand_alias_array($pools[$vs_a[$i]['pool']]['port']);
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$append_port_to_name = true;
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}
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else {
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$dest_port_array = array($pools[$vs_a[$i]['pool']]['port']);
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}
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281
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$append_ip_to_name = false;
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282
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if (is_subnetv4($vs_a[$i]['ipaddr'])) {
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283
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$ip_list = subnetv4_expand($vs_a[$i]['ipaddr']);
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284
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$append_ip_to_name = true;
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}
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else {
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287
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$ip_list = array($vs_a[$i]['ipaddr']);
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}
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290
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for ($j = 0; $j < count($ip_list); $j += 1) {
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291
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$ip = $ip_list[$j];
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292
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for ($k = 0; $k < count($src_port_array) && $k < count($dest_port_array); $k += 1) {
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293
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$src_port = $src_port_array[$k];
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$dest_port = $dest_port_array[$k];
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296
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$name = $vs_a[$i]['name'];
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297
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if ($append_ip_to_name) {
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298
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$name .= "_" . $j;
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299
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}
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300
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if ($append_port_to_name) {
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301
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$name .= "_" . $src_port;
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302
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}
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303
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304
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if (($vs_a[$i]['mode'] == 'relay') || ($vs_a[$i]['relay_protocol'] == 'dns')) {
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305
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$conf .= "relay \"{$name}\" {\n";
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306
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$conf .= " listen on {$ip} port {$src_port}\n";
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307
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308
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if ($vs_a[$i]['relay_protocol'] == "dns") {
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309
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$conf .= " protocol \"dnsproto\"\n";
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310
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} else {
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311
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$conf .= " protocol \"{$vs_a[$i]['relay_protocol']}\"\n";
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312
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}
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313
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$lbmode = "";
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314
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if ( $pools[$vs_a[$i]['pool']]['mode'] == "loadbalance" ) {
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315
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$lbmode = "mode loadbalance";
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316
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}
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317
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318
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$conf .= " forward to <{$vs_a[$i]['pool']}> port {$dest_port} {$lbmode} {$check_a[$pools[$vs_a[$i]['pool']]['monitor']]} \n";
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319
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320
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if (isset($vs_a[$i]['sitedown']) && strlen($vs_a[$i]['sitedown']) > 0)
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321
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$conf .= " forward to <{$vs_a[$i]['sitedown']}> port {$dest_port} {$lbmode} {$check_a[$pools[$vs_a[$i]['pool']]['monitor']]} \n";
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322
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$conf .= "}\n";
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323
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} else {
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324
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$conf .= "redirect \"{$name}\" {\n";
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325
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$conf .= " listen on {$ip} port {$src_port}\n";
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326
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$conf .= " forward to <{$vs_a[$i]['pool']}> port {$dest_port} {$check_a[$pools[$vs_a[$i]['pool']]['monitor']]} \n";
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327
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|
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328
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if (isset($config['system']['lb_use_sticky']))
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329
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$conf .= " sticky-address\n";
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330
|
|
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331
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/* sitedown MUST use the same port as the primary pool - sucks, but it's a relayd thing */
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332
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if (isset($vs_a[$i]['sitedown']) && strlen($vs_a[$i]['sitedown']) > 0)
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333
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$conf .= " forward to <{$vs_a[$i]['sitedown']}> port {$dest_port} {$check_a[$pools[$vs_a[$i]['pool']]['monitor']]} \n";
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334
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335
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$conf .= "}\n";
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336
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}
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337
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}
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338
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}
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|
339
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}
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340
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}
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341
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fwrite($fd, $conf);
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342
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fclose($fd);
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343
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344
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if (is_process_running('relayd')) {
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345
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if (! empty($vs_a)) {
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346
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if ($kill_first) {
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347
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mwexec('pkill relayd');
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348
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mwexec("/usr/local/sbin/relayd -f {$g['varetc_path']}/relayd.conf");
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349
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} else {
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|
350
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// it's running and there is a config, just reload
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351
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mwexec("/usr/local/sbin/relayctl reload");
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|
352
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}
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|
353
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} else {
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|
354
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/*
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|
355
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* XXX: Something breaks our control connection with relayd
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|
356
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* and makes 'relayctl stop' not work
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|
357
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* rule reloads are the current suspect
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|
358
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* mwexec('/usr/local/sbin/relayctl stop');
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|
359
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* returns "command failed"
|
|
360
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*/
|
|
361
|
mwexec('pkill relayd');
|
|
362
|
}
|
|
363
|
} else {
|
|
364
|
if (! empty($vs_a)) {
|
|
365
|
// not running and there is a config, start it
|
|
366
|
mwexec("/usr/local/sbin/relayd -f {$g['varetc_path']}/relayd.conf");
|
|
367
|
}
|
|
368
|
}
|
|
369
|
}
|
|
370
|
|
|
371
|
function get_lb_redirects() {
|
|
372
|
/*
|
|
373
|
# relayctl show summary
|
|
374
|
Id Type Name Avlblty Status
|
|
375
|
1 redirect testvs2 active
|
|
376
|
5 table test2:80 active (3 hosts up)
|
|
377
|
11 host 192.168.1.2 91.55% up
|
|
378
|
10 host 192.168.1.3 100.00% up
|
|
379
|
9 host 192.168.1.4 88.73% up
|
|
380
|
3 table test:80 active (1 hosts up)
|
|
381
|
7 host 192.168.1.2 66.20% down
|
|
382
|
6 host 192.168.1.3 97.18% up
|
|
383
|
0 redirect testvs active
|
|
384
|
3 table test:80 active (1 hosts up)
|
|
385
|
7 host 192.168.1.2 66.20% down
|
|
386
|
6 host 192.168.1.3 97.18% up
|
|
387
|
4 table testvs-sitedown:80 active (1 hosts up)
|
|
388
|
8 host 192.168.1.4 84.51% up
|
|
389
|
# relayctl show redirects
|
|
390
|
Id Type Name Avlblty Status
|
|
391
|
1 redirect testvs2 active
|
|
392
|
0 redirect testvs active
|
|
393
|
# relayctl show redirects
|
|
394
|
Id Type Name Avlblty Status
|
|
395
|
1 redirect testvs2 active
|
|
396
|
total: 2 sessions
|
|
397
|
last: 2/60s 2/h 2/d sessions
|
|
398
|
average: 1/60s 0/h 0/d sessions
|
|
399
|
0 redirect testvs active
|
|
400
|
*/
|
|
401
|
$rdr_a = array();
|
|
402
|
exec('/usr/local/sbin/relayctl show redirects 2>&1', $rdr_a);
|
|
403
|
$relay_a = array();
|
|
404
|
exec('/usr/local/sbin/relayctl show relays 2>&1', $relay_a);
|
|
405
|
$vs = array();
|
|
406
|
$cur_entry = "";
|
|
407
|
for ($i = 0; isset($rdr_a[$i]); $i++) {
|
|
408
|
$line = $rdr_a[$i];
|
|
409
|
if (preg_match("/^[0-9]+/", $line)) {
|
|
410
|
$regs = array();
|
|
411
|
if($x = preg_match("/^[0-9]+\s+redirect\s+([^\s]+)\s+([^\s]+)/", $line, $regs)) {
|
|
412
|
$cur_entry = trim($regs[1]);
|
|
413
|
$vs[trim($regs[1])] = array();
|
|
414
|
$vs[trim($regs[1])]['status'] = trim($regs[2]);
|
|
415
|
}
|
|
416
|
} elseif (($x = preg_match("/^\s+total:\s(.*)\ssessions/", $line, $regs)) && !empty($cur_entry)) {
|
|
417
|
$vs[$cur_entry]['total'] = trim($regs[1]);
|
|
418
|
} elseif (($x = preg_match("/^\s+last:\s(.*)\ssessions/", $line, $regs)) && !empty($cur_entry)) {
|
|
419
|
$vs[$cur_entry]['last'] = trim($regs[1]);
|
|
420
|
} elseif (($x = preg_match("/^\s+average:(.*)\ssessions/", $line, $regs)) && !empty($cur_entry)) {
|
|
421
|
$vs[$cur_entry]['average'] = trim($regs[1]);
|
|
422
|
}
|
|
423
|
}
|
|
424
|
$cur_entry = "";
|
|
425
|
for ($i = 0; isset($relay_a[$i]); $i++) {
|
|
426
|
$line = $relay_a[$i];
|
|
427
|
if (preg_match("/^[0-9]+/", $line)) {
|
|
428
|
$regs = array();
|
|
429
|
if($x = preg_match("/^[0-9]+\s+relay\s+([^\s]+)\s+([^\s]+)/", $line, $regs)) {
|
|
430
|
$cur_entry = trim($regs[1]);
|
|
431
|
$vs[trim($regs[1])] = array();
|
|
432
|
$vs[trim($regs[1])]['status'] = trim($regs[2]);
|
|
433
|
}
|
|
434
|
} elseif (($x = preg_match("/^\s+total:\s(.*)\ssessions/", $line, $regs)) && !empty($cur_entry)) {
|
|
435
|
$vs[$cur_entry]['total'] = trim($regs[1]);
|
|
436
|
} elseif (($x = preg_match("/^\s+last:\s(.*)\ssessions/", $line, $regs)) && !empty($cur_entry)) {
|
|
437
|
$vs[$cur_entry]['last'] = trim($regs[1]);
|
|
438
|
} elseif (($x = preg_match("/^\s+average:(.*)\ssessions/", $line, $regs)) && !empty($cur_entry)) {
|
|
439
|
$vs[$cur_entry]['average'] = trim($regs[1]);
|
|
440
|
}
|
|
441
|
}
|
|
442
|
return $vs;
|
|
443
|
}
|
|
444
|
|
|
445
|
function get_lb_summary() {
|
|
446
|
$relayctl = array();
|
|
447
|
exec('/usr/local/sbin/relayctl show summary 2>&1', $relayctl);
|
|
448
|
$relay_hosts=Array();
|
|
449
|
foreach( (array) $relayctl as $line) {
|
|
450
|
$t = explode("\t", $line);
|
|
451
|
switch (trim($t[1])) {
|
|
452
|
case "table":
|
|
453
|
$curpool=trim($t[2]);
|
|
454
|
break;
|
|
455
|
case "host":
|
|
456
|
$curhost=trim($t[2]);
|
|
457
|
$relay_hosts[$curpool][$curhost]['avail']=trim($t[3]);
|
|
458
|
$relay_hosts[$curpool][$curhost]['state']=trim($t[4]);
|
|
459
|
break;
|
|
460
|
}
|
|
461
|
}
|
|
462
|
return $relay_hosts;
|
|
463
|
}
|
|
464
|
|
|
465
|
?>
|