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<?php
/**
* MDSTAT Plugin
*
* PHP version 5
*
* @category PHP
* @package PSI_Plugin_MDStatus
* @author Michael Cramer <BigMichi1@users.sourceforge.net>
* @copyright 2009 phpSysInfo
* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License
* @version SVN: $Id: class.MDStatus.inc.php 329 2009-09-07 11:21:44Z bigmichi1 $
* @link http://phpsysinfo.sourceforge.net
*/
/**
* mdstat Plugin, which displays a snapshot of the kernel's RAID/md state
* a simple view which shows supported types and RAID-Devices which are determined by
* parsing the "/proc/mdstat" file, another way is to provide
* a file with the output of the /proc/mdstat file, so there is no need to run a execute by the
* webserver, the format of the command is written down in the mdstat.config.php file, where also
* the method of getting the information is configured
*
* @category PHP
* @package PSI_Plugin_MDStatus
* @author Michael Cramer <BigMichi1@users.sourceforge.net>
* @copyright 2009 phpSysInfo
* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License
* @version Release: 3.0
* @link http://phpsysinfo.sourceforge.net
*/
class MDStatus extends PSI_Plugin
{
/**
* variable, which holds the content of the command
* @var array
*/
private $_filecontent = "";
/**
* variable, which holds the result before the xml is generated out of this array
* @var array
*/
private $_result = array();
/**
* read the data into an internal array and also call the parent constructor
*
* @param String $enc encoding
*/
public function __construct($enc)
{
$buffer = "";
parent::__construct(__CLASS__, $enc);
switch (PSI_PLUGIN_MDSTAT_ACCESS) {
case 'file':
CommonFunctions::rfts("/proc/mdstat", $buffer);
break;
case 'data':
CommonFunctions::rfts(APP_ROOT."/data/mdstat.txt", $buffer);
break;
default:
$this->global_error->addConfigError("__construct()", "PSI_PLUGIN_MDSTAT_ACCESS");
break;
}
if (trim($buffer) != "") {
$this->_filecontent = preg_split("/\n/", $buffer, -1, PREG_SPLIT_NO_EMPTY);
} else {
$this->_filecontent = array();
}
}
/**
* doing all tasks to get the required informations that the plugin needs
* result is stored in an internal array<br>the array is build like a tree,
* so that it is possible to get only a specific process with the childs
*
* @return void
*/
public function execute()
{
if ( empty($this->_filecontent)) {
return;
}
// get the supported types
if (preg_match('/[a-zA-Z]* : (\[([a-z0-9])*\]([ \n]))+/', $this->_filecontent[0], $res)) {
$parts = preg_split("/ : /", $res[0]);
$parts = preg_split("/ /", $parts[1]);
$count = 0;
foreach ($parts as $types) {
if (trim($types) != "") {
$this->_result['supported_types'][$count++] = substr(trim($types), 1, -1);
}
}
}
// get disks
if (preg_match("/^read_ahead/", $this->_filecontent[2])) {
$count = 2;
} else {
$count = 1;
}
$cnt_filecontent = count($this->_filecontent);
do {
$parts = preg_split("/ : /", $this->_filecontent[$count]);
$dev = trim($parts[0]);
if (count($parts) == 2) {
$details = preg_split('/ /', $parts[1]);
if (!strstr($details[0], 'inactive')) {
$this->_result['devices'][$dev]['level'] = $details[1];
}
$this->_result['devices'][$dev]['status'] = $details[0];
for ($i = 2, $cnt_details = count($details); $i < $cnt_details; $i++) {
preg_match('/(([a-z0-9])+)(\[([0-9]+)\])(\([SF ]\))?/', trim($details[$i]), $partition);
if (count($partition) == 5 || count($partition) == 6) {
$this->_result['devices'][$dev]['partitions'][$partition[1]]['raid_index'] = substr(trim($partition[3]), 1, -1);
if (isset($partition[5])) {
$search = array("(", ")");
$replace = array("", "");
$this->_result['devices'][$dev]['partitions'][$partition[1]]['status'] = str_replace($search, $replace, trim($partition[5]));
} else {
$this->_result['devices'][$dev]['partitions'][$partition[1]]['status'] = " ";
}
}
}
$count++;
$optionline = $this->_filecontent[$count - 1].$this->_filecontent[$count];
if ($pos = strpos($optionline, "k chunk")) {
$this->_result['devices'][$dev]['chunk_size'] = trim(substr($optionline, $pos - 3, 3));
} else {
$this->_result['devices'][$dev]['chunk_size'] = -1;
}
if ($pos = strpos($optionline, "super non-persistent")) {
$this->_result['devices'][$dev]['pers_superblock'] = 0;
} else {
$this->_result['devices'][$dev]['pers_superblock'] = 1;
}
if ($pos = strpos($optionline, "algorithm")) {
$this->_result['devices'][$dev]['algorithm'] = trim(substr($optionline, $pos + 9, 2));
} else {
$this->_result['devices'][$dev]['algorithm'] = -1;
}
if (preg_match('/(\[[0-9]?\/[0-9]\])/', $optionline, $res)) {
$slashpos = strpos($res[0], '/');
$this->_result['devices'][$dev]['registered'] = substr($res[0], 1, $slashpos - 1);
$this->_result['devices'][$dev]['active'] = substr($res[0], $slashpos + 1, strlen($res[0]) - $slashpos - 2);
} else {
$this->_result['devices'][$dev]['registered'] = -1;
$this->_result['devices'][$dev]['active'] = -1;
}
if (preg_match(('/([a-z]+)([ ]?)=([ ]?)([0-9\.]+)%/'), $this->_filecontent[$count + 1], $res) || (preg_match(('/([a-z]+)([ ]?)=([ ]?)([0-9\.]+)/'), $optionline, $res))) {
list($this->_result['devices'][$dev]['action']['name'], $this->_result['devices'][$dev]['action']['percent']) = preg_split("/=/", str_replace("%", "", $res[0]));
if (preg_match(('/([a-z]*=[0-9\.]+[a-z]+)/'), $this->_filecontent[$count + 1], $res)) {
$time = preg_split("/=/", $res[0]);
list($this->_result['devices'][$dev]['action']['finish_time'], $this->_result['devices'][$dev]['action']['finish_unit']) = sscanf($time[1], '%f%s');
} else {
$this->_result['devices'][$dev]['action']['finish_time'] = -1;
$this->_result['devices'][$dev]['action']['finish_unit'] = -1;
}
} else {
$this->_result['devices'][$dev]['action']['name'] = -1;
$this->_result['devices'][$dev]['action']['percent'] = -1;
$this->_result['devices'][$dev]['action']['finish_time'] = -1;
$this->_result['devices'][$dev]['action']['finish_unit'] = -1;
}
} else {
$count++;
}
} while ($cnt_filecontent > $count);
$lastline = $this->_filecontent[$cnt_filecontent - 2];
if (strpos($lastline, "unused devices") !== false) {
$parts = preg_split("/:/", $lastline);
$search = array("<", ">");
$replace = array("", "");
$this->_result['unused_devs'] = trim(str_replace($search, $replace, $parts[1]));
} else {
$this->_result['unused_devs'] = -1;
}
}
/**
* generates the XML content for the plugin
*
* @return SimpleXMLObject entire XML content for the plugin
*/
public function xml()
{
if ( empty($this->_result)) {
return $this->xml->getSimpleXmlElement();
}
$sup = $this->xml->addChild("Supported_Types");
foreach ($this->_result['supported_types'] as $type) {
$typ = $sup->addChild("Type");
$typ->addAttribute("Name", $type);
}
foreach ($this->_result['devices'] as $key=>$device) {
$dev = $this->xml->addChild("Raid");
$dev->addAttribute("Device_Name", $key);
$dev->addAttribute("Level", $device["level"]);
$dev->addAttribute("Disk_Status", $device["status"]);
$dev->addAttribute("Chunk_Size", $device["chunk_size"]);
$dev->addAttribute("Persistend_Superblock", $device["pers_superblock"]);
$dev->addAttribute("Algorithm", $device["algorithm"]);
$dev->addAttribute("Disks_Registered", $device["registered"]);
$dev->addAttribute("Disks_Active", $device["active"]);
$action = $dev->addChild("Action");
$action->addAttribute("Percent", $device['action']['percent']);
$action->addAttribute("Name", $device['action']['name']);
$action->addAttribute("Time_To_Finish", $device['action']['finish_time']);
$action->addAttribute("Time_Unit", $device['action']['finish_unit']);
$disks = $dev->addChild("Disks");
foreach ($device['partitions'] as $diskkey=>$disk) {
$disktemp = $disks->addChild("Disk");
$disktemp->addAttribute("Name", $diskkey);
$disktemp->addAttribute("Status", $disk['status']);
$disktemp->addAttribute("Index", $disk['raid_index']);
}
}
if ($this->_result['unused_devs'] !== - 1) {
$unDev = $this->xml->addChild("Unused_Devices");
$unDev->addAttribute("Devices", $this->_result['unused_devs']);
}
return $this->xml->getSimpleXmlElement();
}
}
?>
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