librenms-librenms/discovery.php

#!/usr/bin/env php
<?php

/**
 * Observium
 *
 *   This file is part of Observium.
 *
 * @package    observium
 * @subpackage discovery
 * @author     Adam Armstrong <adama@memetic.org>
 * @copyright  (C) 2006 - 2012 Adam Armstrong
 */

chdir(dirname($argv[0]));

require 'includes/defaults.inc.php';
require 'config.php';
require 'includes/definitions.inc.php';
require 'includes/functions.php';
require 'includes/discovery/functions.inc.php';

$start         = utime();
$runtime_stats = array();

$options = getopt('h:m:i:n:d::a::q');

if (!isset($options['q'])) {
    echo $config['project_name_version']." Discovery\n";
    echo get_last_commit()."\n";
}

if (isset($options['h'])) {
    if ($options['h'] == 'odd') {
        $options['n'] = '1';
        $options['i'] = '2';
    }
    else if ($options['h'] == 'even') {
        $options['n'] = '0';
        $options['i'] = '2';
    }
    else if ($options['h'] == 'all') {
        $where = ' ';
        $doing = 'all';
    }
    else if ($options['h'] == 'new') {
        $where = 'AND `last_discovered` IS NULL';
        $doing = 'new';
    }
    else if ($options['h']) {
        if (is_numeric($options['h'])) {
            $where = "AND `device_id` = '".$options['h']."'";
            $doing = $options['h'];
        }
        else {
            $where = "AND `hostname` LIKE '".str_replace('*', '%', mres($options['h']))."'";
            $doing = $options['h'];
        }
    }//end if
}//end if

if (isset($options['i']) && $options['i'] && isset($options['n'])) {
    $where = 'AND MOD(device_id,'.$options['i'].") = '".$options['n']."'";
    $doing = $options['n'].'/'.$options['i'];
}

if (isset($options['d'])) {
    echo "DEBUG!\n";
    $debug = true;
    ini_set('display_errors', 1);
    ini_set('display_startup_errors', 1);
    ini_set('log_errors', 1);
    ini_set('error_reporting', 1);
}
else {
    $debug = false;
    // ini_set('display_errors', 0);
    ini_set('display_startup_errors', 0);
    ini_set('log_errors', 0);
    // ini_set('error_reporting', 0);
}

if (!$where) {
    echo "-h <device id> | <device hostname wildcard>  Poll single device\n";
    echo "-h odd                                       Poll odd numbered devices  (same as -i 2 -n 0)\n";
    echo "-h even                                      Poll even numbered devices (same as -i 2 -n 1)\n";
    echo "-h all                                       Poll all devices\n";
    echo "-h new                                       Poll all devices that have not had a discovery run before\n\n";
    echo "-i <instances> -n <number>                   Poll as instance <number> of <instances>\n";
    echo "                                             Instances start at 0. 0-3 for -n 4\n\n";
    echo "\n";
    echo "Debugging and testing options:\n";
    echo "-d                                           Enable debugging output\n";
    echo "-m                                           Specify single module to be run\n";
    echo "\n";
    echo "Invalid arguments!\n";
    exit;
}

require 'includes/sql-schema/update.php';

$discovered_devices = 0;

if ($config['distributed_poller'] === true) {
    $where .= ' AND poller_group IN('.$config['distributed_poller_group'].')';
}

foreach (dbFetch("SELECT * FROM `devices` WHERE status = 1 AND disabled = 0 $where ORDER BY device_id DESC") as $device) {
    if (dbGetLock('discovering.' . $device['device_id'])) {
        discover_device($device, $options);
    }
}

$end      = utime();
$run      = ($end - $start);
$proctime = substr($run, 0, 5);

if ($discovered_devices) {
    dbInsert(array('type' => 'discover', 'doing' => $doing, 'start' => $start, 'duration' => $proctime, 'devices' => $discovered_devices), 'perf_times');
}

$string = $argv[0]." $doing ".date($config['dateformat']['compact'])." - $discovered_devices devices discovered in $proctime secs";
d_echo("$string\n");

if ($options['h'] != 'new' && $config['version_check']) {
    include 'includes/versioncheck.inc.php';
}

if (!isset($options['q'])) {
    echo ('MySQL: Cell['.($db_stats['fetchcell'] + 0).'/'.round(($db_stats['fetchcell_sec'] + 0), 2).'s]'.' Row['.($db_stats['fetchrow'] + 0).'/'.round(($db_stats['fetchrow_sec'] + 0), 2).'s]'.' Rows['.($db_stats['fetchrows'] + 0).'/'.round(($db_stats['fetchrows_sec'] + 0), 2).'s]'.' Column['.($db_stats['fetchcol'] + 0).'/'.round(($db_stats['fetchcol_sec'] + 0), 2).'s]'.' Update['.($db_stats['update'] + 0).'/'.round(($db_stats['update_sec'] + 0), 2).'s]'.' Insert['.($db_stats['insert'] + 0).'/'.round(($db_stats['insert_sec'] + 0), 2).'s]'.' Delete['.($db_stats['delete'] + 0).'/'.round(($db_stats['delete_sec'] + 0), 2).'s]');
    echo "\n";
}

logfile($string);