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| 4 | daniel-mar | 1 | <?php /* <ViaThinkSoftSignature> |
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| 22 | 7yAx/fTMeMs4ypVpxQJzt3Sct/BUkKHSkhSY0UrHyP2k4k29VGhwaAqZHBChglawv |
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| 23 | w== |
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| 24 | </ViaThinkSoftSignature> */ ?> |
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| 2 | daniel-mar | 25 | <?php |
| 26 | |||
| 27 | /* |
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| 28 | * VNag - Nagios Framework for PHP |
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| 29 | * Developed by Daniel Marschall, ViaThinkSoft <www.viathinksoft.com> |
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| 30 | * Licensed under the terms of the Apache 2.0 license |
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| 31 | * |
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| 32 | * Revision 2018-07-17 |
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| 33 | */ |
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| 34 | |||
| 35 | declare(ticks=1); |
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| 36 | |||
| 37 | class SmartCheck extends VNag { |
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| 38 | public function __construct() { |
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| 39 | parent::__construct(); |
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| 40 | |||
| 41 | if ($this->is_http_mode()) { |
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| 42 | // Don't allow the standard arguments via $_REQUEST |
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| 43 | $this->registerExpectedStandardArguments(''); |
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| 44 | } else { |
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| 45 | $this->registerExpectedStandardArguments('Vhtv'); |
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| 46 | } |
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| 47 | |||
| 48 | $this->getHelpManager()->setPluginName('vnag_smart'); |
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| 49 | $this->getHelpManager()->setVersion('1.0'); |
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| 50 | $this->getHelpManager()->setShortDescription('This plugin checks the contents of the SMART data and warns when a harddisk has failed.'); |
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| 51 | $this->getHelpManager()->setCopyright('Copyright (C) 2011-$CURYEAR$ Daniel Marschall, ViaThinkSoft.'); |
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| 52 | $this->getHelpManager()->setSyntax('$SCRIPTNAME$ (no additional arguments expected)'); |
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| 53 | $this->getHelpManager()->setFootNotes('If you encounter bugs, please contact ViaThinkSoft at www.viathinksoft.com'); |
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| 54 | } |
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| 55 | |||
| 56 | private function check_smart($dev) { |
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| 57 | if (!`which which`) { |
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| 58 | throw new VNagException("Program 'which' is not installed on your system"); |
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| 59 | } |
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| 60 | |||
| 61 | if (!`which smartctl`) { |
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| 62 | throw new VNagException("Program 'smartctl' (usually included in package smartmontools) is not installed on your system"); |
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| 63 | } |
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| 64 | |||
| 65 | if (!`sudo cat /proc/cpuinfo`) { |
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| 66 | // To make this work, please run "visudo" and add the following line: |
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| 67 | // nagios ALL=NOPASSWD: /usr/sbin/smartctl |
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| 68 | throw new VNagException("You don't have SUDO privileges. Please run 'visudo' and allow the command /usr/sbin/smartctl for user ".get_current_user()."."); |
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| 69 | } |
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| 70 | |||
| 71 | unset($out); |
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| 72 | exec('sudo smartctl --all '.escapeshellarg($dev), $out, $code); |
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| 73 | $cont = implode("\n", $out); |
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| 74 | |||
| 75 | $msg = array(); |
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| 76 | $status = -1; |
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| 77 | |||
| 78 | if (stripos($cont, 'device lacks SMART capability') !== false) { |
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| 79 | // At my system (Debian 9), I get exit code 4 (which is not fully accurate) |
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| 80 | $msg[] = 'Device lacks SMART capability'; |
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| 81 | #$status = VNag::STATUS_UNKNOWN; |
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| 82 | } else if ($code == 0) { |
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| 83 | $status = VNag::STATUS_OK; |
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| 84 | } else { |
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| 85 | if ($code & 1) { |
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| 86 | throw new Exception("smartctl reports 'command line did not parse' (code $code)."); |
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| 87 | } |
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| 88 | if ($code & 2) { |
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| 89 | $msg[] = "Device open failed. It is either completely defective, or in low-power mode."; |
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| 90 | $status = max($status, VNag::STATUS_CRITICAL); |
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| 91 | } |
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| 92 | if ($code & 4) { |
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| 93 | $msg[] = "SMART command failed or checksum is wrong."; |
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| 94 | $status = max($status, VNag::STATUS_WARNING); |
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| 95 | } |
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| 96 | if ($code & 8) { |
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| 97 | $msg[] = "SMART status returns 'DISK FAILING'"; |
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| 98 | $status = max($status, VNag::STATUS_CRITICAL); |
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| 99 | } |
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| 100 | if ($code & 16) { |
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| 101 | $msg[] = "SMART found prefail attributes below threshold"; |
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| 102 | $status = max($status, VNag::STATUS_WARNING); |
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| 103 | } |
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| 104 | if ($code & 32) { |
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| 105 | $msg[] = "SMART status is 'OK' but usage/prefail attributes have been below threshold in the past."; |
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| 106 | $status = max($status, VNag::STATUS_WARNING); |
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| 107 | } |
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| 108 | if ($code & 64) { |
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| 109 | $msg[] = "The device error log contains records of errors."; |
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| 110 | $status = max($status, VNag::STATUS_WARNING); |
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| 111 | } |
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| 112 | if ($code & 128) { |
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| 113 | $msg[] = "The self-test logs contains records of errors."; |
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| 114 | $status = max($status, VNag::STATUS_WARNING); |
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| 115 | } |
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| 116 | } |
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| 117 | |||
| 118 | $messages = implode(", ", $msg); |
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| 119 | if ($messages != '') $messages = ": $messages"; |
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| 120 | |||
| 121 | if ($status == VNag::STATUS_CRITICAL) { |
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| 122 | $this->addVerboseMessage("$dev (Critical)$messages", VNag::VERBOSITY_SUMMARY); |
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| 123 | } else if ($status == VNag::STATUS_WARNING) { |
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| 124 | $this->addVerboseMessage("$dev (Warning)$messages", VNag::VERBOSITY_SUMMARY); |
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| 125 | } else if ($status == VNag::STATUS_OK) { |
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| 126 | $this->addVerboseMessage("$dev (OK)$messages", VNag::VERBOSITY_ADDITIONAL_INFORMATION); |
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| 127 | } else { |
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| 128 | $status = VNag::STATUS_UNKNOWN; |
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| 129 | $this->addVerboseMessage("$dev (Unknown)$messages", VNag::VERBOSITY_SUMMARY); |
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| 130 | } |
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| 131 | $this->setStatus($status); |
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| 132 | return $status; |
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| 133 | } |
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| 134 | |||
| 135 | protected function cbRun() { |
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| 136 | $devices = array(); |
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| 137 | $devices = array_merge($devices, glob('/dev/sd?')); |
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| 138 | $devices = array_merge($devices, glob('/dev/hd?')); |
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| 139 | |||
| 140 | $count_total = 0; |
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| 141 | $count_ok = 0; |
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| 142 | $count_warning = 0; |
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| 143 | $count_critical = 0; |
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| 144 | $count_unknown = 0; |
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| 145 | foreach ($devices as $dev) { |
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| 146 | $count_total++; |
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| 147 | switch ($this->check_smart($dev)) { |
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| 148 | case VNag::STATUS_OK: |
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| 149 | $count_ok++; |
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| 150 | break; |
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| 151 | case VNag::STATUS_WARNING: |
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| 152 | $count_warning++; |
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| 153 | break; |
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| 154 | case VNag::STATUS_CRITICAL: |
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| 155 | $count_critical++; |
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| 156 | break; |
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| 157 | case VNag::STATUS_UNKNOWN: |
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| 158 | $count_unknown++; |
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| 159 | break; |
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| 160 | } |
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| 161 | } |
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| 162 | |||
| 163 | $this->setHeadline(sprintf('Checked %d drives (%d OK, %d warning, %d critical, %d unknown)', $count_total, $count_ok, $count_warning, $count_critical, $count_unknown)); |
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| 164 | } |
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| 165 | } |