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poller.php
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poller.php
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#!/usr/bin/env php
<?php
/**
* poller.php
*
* -Description-
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @package LibreNMS
* @subpackage poller
* @copyright (C) 2006 - 2012 Adam Armstrong
* Modified 4/17/19
* @author Heath Barnhart <hbarnhart@kanren.net>
*/
use LibreNMS\Config;
use LibreNMS\Alert\AlertRules;
use LibreNMS\Data\Store\Datastore;
$init_modules = ['polling', 'alerts', 'laravel'];
require __DIR__ . '/includes/init.php';
$poller_start = microtime(true);
echo Config::get('project_name')." Poller\n";
$options = getopt('h:m:i:n:r::d::v::a::f::q');
if (isset($options['h'])) {
if ($options['h'] == 'odd') {
$options['n'] = '1';
$options['i'] = '2';
} elseif ($options['h'] == 'even') {
$options['n'] = '0';
$options['i'] = '2';
} elseif ($options['h'] == 'all') {
$where = ' ';
$doing = 'all';
} elseif ($options['h']) {
if (is_numeric($options['h'])) {
$where = "AND `device_id` = " . $options['h'];
$doing = $options['h'];
} else {
if (preg_match('/\*/', $options['h'])) {
$where = "AND `hostname` LIKE '" . str_replace('*', '%', mres($options['h'])) . "'";
} else {
$where = "AND `hostname` = '" . mres($options['h']) . "'";
}
$doing = $options['h'];
}
}
}
if (isset($options['i']) && $options['i'] && isset($options['n'])) {
$where = true;
// FIXME
$query = 'SELECT * FROM (SELECT @rownum :=0) r,
(
SELECT @rownum := @rownum +1 AS rownum, `devices`.*
FROM `devices`
WHERE `disabled` = 0
ORDER BY `device_id` ASC
) temp
WHERE MOD(temp.rownum, '.mres($options['i']).') = '.mres($options['n']).';';
$doing = $options['n'].'/'.$options['i'];
}
if (empty($where)) {
echo "-h <device id> | <device hostname wildcard> Poll single device\n";
echo "-h odd Poll odd numbered devices (same as -i 2 -n 0)\n";
echo "-h even Poll even numbered devices (same as -i 2 -n 1)\n";
echo "-h all Poll all devices\n\n";
echo "-i <instances> -n <number> Poll as instance <number> of <instances>\n";
echo " Instances start at 0. 0-3 for -n 4\n\n";
echo "Debugging and testing options:\n";
echo "-r Do not create or update RRDs\n";
echo "-f Do not insert data into InfluxDB\n";
echo "-p Do not insert data into Prometheus\n";
echo "-d Enable debugging output\n";
echo "-v Enable verbose debugging output\n";
echo "-m Specify module(s) to be run. Comma separate modules, submodules may be added with /\n";
echo "\n";
echo "No polling type specified!\n";
exit;
}
if (set_debug(isset($options['d'])) || isset($options['v'])) {
$versions = version_info();
echo <<<EOH
===================================
Version info:
Commit SHA: {$versions['local_sha']}
Commit Date: {$versions['local_date']}
DB Schema: {$versions['db_schema']}
PHP: {$versions['php_ver']}
MySQL: {$versions['mysql_ver']}
RRDTool: {$versions['rrdtool_ver']}
SNMP: {$versions['netsnmp_ver']}
==================================
EOH;
echo "DEBUG!\n";
if (isset($options['v'])) {
$vdebug = true;
}
update_os_cache(true); // Force update of OS Cache
}
// If we've specified modules with -m, use them
$module_override = parse_modules('poller', $options);
set_debug($debug);
$datastore = Datastore::init($options);
echo "Starting polling run:\n\n";
$polled_devices = 0;
$unreachable_devices = 0;
if (!isset($query)) {
$query = "SELECT * FROM `devices` WHERE `disabled` = 0 $where ORDER BY `device_id` ASC";
}
foreach (dbFetch($query) as $device) {
DeviceCache::setPrimary($device['device_id']);
if ($device['os_group'] == 'cisco') {
$device['vrf_lite_cisco'] = dbFetchRows("SELECT * FROM `vrf_lite_cisco` WHERE `device_id` = " . $device['device_id']);
} else {
$device['vrf_lite_cisco'] = '';
}
if (!poll_device($device, $module_override)) {
$unreachable_devices++;
}
echo "#### Start Alerts ####\n";
$rules = new AlertRules();
$rules->runRules($device['device_id']);
echo "#### End Alerts ####\r\n";
$polled_devices++;
}
$poller_end = microtime(true);
$poller_run = ($poller_end - $poller_start);
$poller_time = substr($poller_run, 0, 5);
if ($polled_devices) {
dbInsert(array(
'type' => 'poll',
'doing' => $doing,
'start' => $poller_start,
'duration' => $poller_time,
'devices' => $polled_devices,
'poller' => Config::get('base_url')
), 'perf_times');
}
$string = $argv[0] . " $doing " . date(Config::get('dateformat.compact')) . " - $polled_devices devices polled in $poller_time secs";
d_echo("$string\n");
if (!isset($options['q'])) {
printStats();
}
logfile($string);
Datastore::terminate();
// Remove this for testing
// print_r(get_defined_vars());
if ($polled_devices === $unreachable_devices) {
exit(6);
}
exit(0);