Subversion Repositories vnag

<?php /* <ViaThinkSoftSignature>

PWwDKp/NSf/rrEh35zHyCMaO4gcZlVT+EjMyvCDND7VbDr2OfniffusJQ/+G/mPHZ

v2dTvk6poY69nCYrUnsqeEdmeVhi5l++vvSAvpVUZiENZkyRUrTBkPVBhQcT8kviQ

pfuBHklcTOhQqiN6MMKD1fS9MkG5jqelOSvMt3L35tTlQk0Fdkbu8WTp2kqWJ/gaA

aZQzTXCserS7Y7SHpWoVvul7kfnpKWkspryM0l1Ih8fCFhYrB7/mMKTL9TqgKd9Ka

f1VGax1Xm3H6z8OkJ8HfgbvbuvC+zruB9J7uYFCnnrtS5JqL660UV61zkTVLE0KBE

Qd8T2cs8ROPsJpwO3StbG3ZU2rDChfpLVKV7VsEYnQpjyIACwIlu4E2kMTzOlIPaP

hl/9HDuL7vfM8DYkUVvvMtxqvVVHYpIx/AFigxakY2HteLmfekxhL9uRJqX2e4SJH

XWeu731yuH+0/c82rzLbEKadHYtV4XBXOxIlSxl4VYM17RCe0r2/R392aMQ4Ziy9j

dhQo22vBJrtmIutBpH7KaecQUwT+hM8sWas68xwfIMWzFuwofsanyA2iJvRx5tR+s

J0mhHQ08HszAqZ+G8byAuW6z8ncRieLhseu2g91OMHOiuDnxpDbGqqrluXDDGs7W+

0aHGPmIbPTYTP6LGyuqV/Q5gg0tgZh0ESFWLoRh1mzrJMBh6ZYMrsByfAruq9ewdB

FZ8rE3a91IhpbFa76wfcN81lk6QMrrc0crd0Fp359xUacXAz6DEO4mQ/f5g06p6rz

jPLfClhpm1Z5AhhaVZS8AhgHNrXSFchksoE+oruo+CO3QDhcZKygGXntMb0I0KIYR

8hsl0CYfkDD9oaMSXPE4g22WO48k6jKxt3MyCSta4vtnTeH6Quon6PEvSXkRs4ZCa

aKYy8owaVxds+h0lGd4eNBgP/bZZb5nxeMuOlO9lhvEgxpXoksLB8Oh10BMj9EBQT

T2TaEtY1GyIr0shBb/mD5BQO0v+qW3PHKbtDtWccKPxNo5Cx4CPf0AiHoqzj6Sa6C

7MdS57nQ9DQAnwhBPOJ5+tt1LF468AerjjdDjsWEYMmicZjOpPM/9APdJjUe312+9

AkVN9Mz3mVQ8DGpI0wEfDdrHH9IWs1G/0RofVtQo23PxyFbX8S64Di7vwBrlrgrWg

esBRLltyn9hSdqv+C1XEJltlunWo2yM/HggjK9mbq2pNLqgW2r/Ddfhbhg+UnHPk+

3XlC2nyPLzLt9Mpf/3IrfbTl3siOB1F6eQT2cQCa9pKrrE1TJu49oMmpiwmD3xT6P

P1c6cVZn8g3N+MdZEJJknf492Zr1Y5oSx93ofxLFYrh5Mf3CDrHAPOTpPZ9J5Kh3s

Q==

</ViaThinkSoftSignature> */ ?>

<?php

/*

 * VNag - Nagios Framework for PHP

 * Developed by Daniel Marschall, ViaThinkSoft <www.viathinksoft.com>

 * Licensed under the terms of the Apache 2.0 license

 *

 * Revision 2023-10-13

 */

// TODO: Anstelle "-d diskname[,diskname[,...]]" wäre es schöner ohne Komma, denn dann könnte man auch die Shell Erweiterung /dev/sd* nutzen

declare(ticks=1);

class DiskRunningCheck extends VNag {

        // Currently, we do not accept wildcards ('sd*' and 'hd*') because this plugin should monitor if disks become offline, e.g. horribly fail or get disconnected.

        // If that would happen, the disk might vanish from the device-folder and therefore would not be detected by the wildcard anymore.

        protected $argDisks = null;

        public function __construct() {

                parent::__construct();

                if ($this->is_http_mode()) {

                        // Don't allow the standard arguments via $_REQUEST

                        $this->registerExpectedStandardArguments('');

                } else {

                        $this->registerExpectedStandardArguments('Vhtv');

                }

                $this->getHelpManager()->setPluginName('vnag_disk_running');

                $this->getHelpManager()->setVersion('1.0');

                $this->getHelpManager()->setShortDescription('This plugin checks if a disk is running/online, even if no SMART functionality is available.');

                $this->getHelpManager()->setCopyright('Copyright (C) 2011-$CURYEAR$ Daniel Marschall, ViaThinkSoft.');

                $this->getHelpManager()->setSyntax('$SCRIPTNAME$ -d diskname[,diskname[,...]]');

                $this->getHelpManager()->setFootNotes('If you encounter bugs, please contact ViaThinkSoft at www.viathinksoft.com');

                // Individual (non-standard) arguments:

                $this->addExpectedArgument($this->argDisks = new VNagArgument('d', 'disknames', VNagArgument::VALUE_REQUIRED, 'disks', 'Disks to be monitored, e.g. "sda,sdb"'));

        }

        protected function cbRun() {

                $count_total = 0;

                $count_running = 0;

                $count_offline = 0;

                $count_warning = 0;

                $count_unknown = 0;

                $disks = $this->argDisks->getValue();

                if (empty($disks)) {

                        throw new VNagException("Please specify the disks you want to monitor.");

                }

                $disks = explode(',',$disks);

                foreach ($disks as $disk) {

                        $disk = preg_replace('@^/dev/@', '', $disk); // accept '/dev/' too

                        // We do not check the size, in case the user has more than 26 disks; https://rwmj.wordpress.com/2011/01/09/how-are-linux-drives-named-beyond-drive-26-devsdz/

                        // But we check if everything is OK, and nothing nasty is done here

                        $disk = preg_replace('@[^a-zA-Z0-9]@', '', $disk);

                        $disk = preg_replace('@^(...)\d+@', '\\1', $disk); // accept 'sdh1' too

                        $count_total++;

                        if (!file_exists("/dev/$disk")) {

                                $this->addVerboseMessage("$disk : Drive does not exist", VNag::VERBOSITY_SUMMARY);

                                $this->setStatus(VNag::STATUS_CRITICAL);

                                $count_offline++;

                        } else {

                                $state_file = "/sys/block/$disk/device/state";

                                if (!file_exists($state_file)) {

                                        $this->addVerboseMessage("$disk : Cannot fetch state (Is this a valid block device?)", VNag::VERBOSITY_SUMMARY);

                                        $this->setStatus(VNag::STATUS_CRITICAL);

                                        $count_unknown++;

                                } else {

                                        $cont = @file_get_contents($state_file);

                                        if ($cont === false) throw new VNagException("Cannot read $state_file");

                                        $state = trim($cont);

                                        if ($state != 'running') {

                                                $this->addVerboseMessage("$disk : $state", VNag::VERBOSITY_SUMMARY);

                                                $this->setStatus(VNag::STATUS_CRITICAL);

                                                $count_offline++;

                                        } else {

                                                #$ioerr_file = "/sys/block/$disk/device/ioerr_cnt";

                                                #if (file_exists($ioerr_file) && (($ioerr_cont = trim(file_get_contents($ioerr_file))) != '0x0')) {

                                                #       $this->addVerboseMessage("$disk : High IOERR count ($ioerr_cont), but state is reported as $state", VNag::VERBOSITY_SUMMARY);

                                                #       $this->setStatus(VNag::STATUS_WARNING);

                                                #       $count_warning++;

                                                #} else {

                                                        $this->addVerboseMessage("$disk : $state", VNag::VERBOSITY_ADDITIONAL_INFORMATION);

                                                        $this->setStatus(VNag::STATUS_OK); // Note: This won't unset a previously set critical state

                                                        $count_running++;

                                                #}

                                        }

                                }

                        }

                }

                $this->setHeadline(sprintf('Checked %d disks (%d running, %d offline, %d warnings, %d unknown)', $count_total, $count_running, $count_offline, $count_warning, $count_unknown));

        }

}