<?php
/*
system.inc
part of FreeNAS (http://www.freenas.org)
Copyright (C) 2005-2009 Olivier Cochard-Labbe <olivier@freenas.org>.
All rights reserved.
Based on m0n0wall (http://m0n0.ch/wall)
Copyright (C) 2003-2006 Manuel Kasper <mk@neon1.net>.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
*/
require_once("functions.inc");
require_once("util.inc");
require_once("rc.inc");
function system_reboot() {
// Initiate halt. Everything will be done automatically
// in /etc/rc.shutdown by executing rc-init scripts in
// reverse order (the 'KEYWORD: shutdown' must be defined).
mwexec("/sbin/shutdown -r now");
}
function system_halt() {
// Initiate halt. Everything will be done automatically
// in /etc/rc.shutdown by executing rc-init scripts in
// reverse order (the 'KEYWORD: shutdown' must be defined).
mwexec("/sbin/shutdown -p now");
}
/* Init language environment */
function system_language_load()
{
global $config, $g_languages;
/* Get the language configured. */
$language = $config['system']['language'];
$domain = strtolower(get_product_name());
$codeset = $g_languages[$language]['codeset'];
putenv("LANG=$language");
setlocale(LC_MESSAGES, $language);
bindtextdomain($domain, "/usr/local/share/locale");
bind_textdomain_codeset($domain, $codeset);
textdomain($domain);
}
/* Get the codeset of the current configured language. */
/* Return: String containing codeset of current laguage. */
function system_get_language_codeset() {
global $config, $g_languages;
$language = $config['system']['language'];
$codeset = $g_languages[$language]['codeset'];
if (empty($codeset))
$codeset = "ISO-8859-1"; // Set default codeset.
return $codeset;
}
// Get list of available groups from /etc/group.
// Result:
// Array (
// [wheel] => 0
// [sshd] => 22
// [www] => 80
// [nobody] => 65534
// [admin] => 1000
// ...
// )
function system_get_group_list() {
// List of groups to filter from result list.
$filterlist = array("_dhcp", "_pflogd");
$grouplist = array();
preg_match_all("/(\S+):\*:(\d+):.*\n/", @file_get_contents("/etc/group"), $matches, PREG_SET_ORDER);
if (is_array($matches)) {
foreach ($matches as $group) {
if (false === in_array($group[1], $filterlist)) {
$grouplist[$group[1]] = $group[2];
}
}
ksort($grouplist);
}
return $grouplist;
}
// Get list of available users from /etc/master.passwd.
// Result:
// Array (
// [test] => Array ( [name] => test
// [password] => $1$yuQLaTPN$lkwYlZEB7B8n85flXPkHd0
// [uid] => 1001
// [gid] => 1001
// [class] =>
// [change] => 0
// [expire] => 0
// [gecos] => test
// [home_dir] => /mnt
// [shell] => /usr/local/bin/scponly
// )
// [root] => ...
// [toor] => ..
// [daemon] => ...
// [operator] => ...
// ...
// )
function system_get_user_list() {
$userlist = array();
foreach (explode("\n", @file_get_contents("/etc/master.passwd")) as $userinfov) {
if (empty($userinfov))
continue;
// Extract user information
$userinfo = explode(":", $userinfov);
$user = array();
$user['name'] = $userinfo[0];
$user['password'] = $userinfo[1];
$user['uid'] = $userinfo[2];
$user['gid'] = $userinfo[3];
$user['class'] = $userinfo[4];
$user['change'] = $userinfo[5];
$user['expire'] = $userinfo[6];
$user['gecos'] = $userinfo[7];
$user['home_dir'] = $userinfo[8];
$user['shell'] = $userinfo[9];
$userlist[$user['name']] = $user;
}
return $userlist;
}
// Get current CPU usage.
// Return current CPU usage in percent.
function system_get_cpu_usage() {
$cpuTicks1 = explode(" ", `/sbin/sysctl -n kern.cp_time`);
sleep(2);
$cpuTicks2 = explode(" ", `/sbin/sysctl -n kern.cp_time`);
$diff = array();
$diff['user'] = ($cpuTicks2[0] - $cpuTicks1[0]);
$diff['nice'] = ($cpuTicks2[1] - $cpuTicks1[1]);
$diff['sys'] = ($cpuTicks2[2] - $cpuTicks1[2]);
$diff['intr'] = ($cpuTicks2[3] - $cpuTicks1[3]);
$diff['idle'] = ($cpuTicks2[4] - $cpuTicks1[4]);
$totalDiff = $diff['user'] + $diff['nice'] + $diff['sys'] + $diff['intr'] + $diff['idle'];
$totalused = $diff['user'] + $diff['nice'] + $diff['sys'] + $diff['intr'];
if (isset($totalused) && $totalused <= 0) {
$totalused = 0.001;
}
return floor(100 * ($totalused / $totalDiff));
}
// Get various CPU informations.
// Result:
// Array (
// [number] => 1
// [model] => AMD Athlon(tm) 64 Processor 3200+
// [clockrate] => 1994
// [temperature] => 65C !!! May be empty if sensor is not available. !!!
// [freq] => 995
// [freqlevels] => 1990/67000 1791/64700 995/28600
// )
function system_get_cpu_info() {
$cpuinfo = array();
$cpuinfo['number'] = chop(`/sbin/sysctl -n hw.ncpu`);
$cpuinfo['model'] = chop(`/sbin/sysctl -n hw.model`);
$cpuinfo['clockrate'] = chop(`/sbin/sysctl -n hw.clockrate`);
$cpuinfo['temperature'] = chop(`/sbin/sysctl -n hw.acpi.thermal.tz0.temperature`);
$cpuinfo['freq'] = chop(`/sbin/sysctl -n dev.cpu.0.freq`);
$cpuinfo['freqlevels'] = chop(`/sbin/sysctl -n dev.cpu.0.freq_levels`);
return $cpuinfo;
}
/**
* Get the system uptime (how long the system is already running).
* @return The current uptime as string.
*/
function system_get_uptime() {
exec("/sbin/sysctl -n kern.boottime", $boottime);
preg_match("/sec = (\d+)/", $boottime[0], $matches);
$boottime = $matches[1];
$uptime = time() - $boottime;
if ($uptime > 60) $uptime += 30;
$updays = (int)($uptime / 86400);
$uptime %= 86400;
$uphours = (int)($uptime / 3600);
$uptime %= 3600;
$upmins = (int)($uptime / 60);
$upsecs = $uptime % 60;
if ($uphours < 1) {
$uptime = sprintf("%d %s %d %s", $upmins, gettext("minute(s)"), $upsecs, gettext("second(s)"));
} else if ($updays < 1) {
$uptime = sprintf("%d %s %d %s %d %s", $uphours, gettext("hour(s)"),
$upmins, gettext("minute(s)"), $upsecs, gettext("second(s)"));
} else {
$uptime = sprintf("%d %s %d %s %d %s %d %s", $updays, gettext("day(s)"),
$uphours, gettext("hour(s)"), $upmins, gettext("minute(s)"), $upsecs,
gettext("second(s)"));
}
return htmlspecialchars($uptime);
}
// Get the current RAM information.
// Returns an array listing the amount of memory installed in the hardware.
function system_get_ram_info() {
exec("/sbin/sysctl -n vm.stats.vm.v_active_count vm.stats.vm.v_inactive_count vm.stats.vm.v_wire_count vm.stats.vm.v_cache_count vm.stats.vm.v_free_count hw.physmem", $memory);
exec("/sbin/sysctl -n hw.realmem", $hwmemory);
$raminfo = array();
$raminfo['real'] = $hwmemory[0];
$raminfo['physical'] = $memory[5];
$raminfo['total'] = $memory[0] + $memory[1] + $memory[2] + $memory[3] + $memory[4];
$raminfo['free'] = $memory[4] + $memory[1];
$raminfo['used'] = $raminfo['total'] - $raminfo['free'];
return $raminfo;
}
// Get the current swap information.
// Result:
// Array (
// [device] => "/dev/ad0s2b"
// [total] => "20M"
// [used] => "0B"
// [avail] => "20M"
// [capacity] => "0%"
// )
function system_get_swap_info() {
exec("/usr/sbin/swapinfo", $swap);
// blocks
$val = 512;
if (preg_match("/(?:Device)(?:\s+)(\d+)(?:k-blocks|-blocks)(?:\s+)(?:Used)(?:\s+)(?:Avail)(?:\s)(?:Capacity)/", $swap[0], $matches)) {
if ($matches[1] == 1) {
$val = $matches[1] * 1024;
} else {
$val = $matches[1];
}
}
array_shift($swap);
$swapinfo = array();
foreach ($swap as $swapv) {
if (preg_match("/(\/dev\/.*)(?:\s+)(\d+)(?:\s+)(\d+)(?:\s+)(\d+)(?:\s)(.+)/", $swapv, $matches)) {
$devswap = array();
$devswap['device'] = trim($matches[1]);
$devswap['total'] = decode_size(trim($matches[2])*$val);
$devswap['used'] = decode_size(trim($matches[3])*$val);
$devswap['avail'] = decode_size(trim($matches[4])*$val);
$devswap['capacity'] = trim($matches[5]);
$swapinfo[] = $devswap;
}
}
return $swapinfo;
}
/**
* Get the system hostname.
* @return The hostname
*/
function system_get_hostname() {
return @exec("hostname");
}
/**
* Get device I/O statistics.
* @param[in] device The device name, e.g. ad1
* @return An array containing the I/O statistics kpt (kilobytes per transfer),
* tps (transfers per second) and mps (megabytes per second). On
* failure, FALSE will be returned.
* @code
* array(
* [kpt] => 11.93
* [tps] => 61
* [mps] => 0.71)
* @endcode
*/
function system_get_device_iostat($device) {
$result = FALSE;
mwexec2("iostat -d {$device}", $rawdata);
if (preg_match("/^\s*(\S+)\s*(\S+)\s*(\S+)/", $rawdata[2], $matches)) {
$result = array();
$result['kpt'] = $matches[1];
$result['tps'] = $matches[2];
$result['mps'] = $matches[3];
}
return $result;
}
/**
* Get device temperature.
* @param[in] device The device name, e.g. ad1
* @return The temperature in C if available, otherwise FALSE.
*/
function system_get_device_temp($device) {
$result = FALSE;
mwexec2("smartctl -A /dev/{$device}", $rawdata);
foreach ($rawdata as $rawdatav) {
$arawdatav = preg_split("/\s+/", $rawdatav);
if ((0 == strncmp(trim($arawdatav[1]), "Temperature_", 12)) &&
(0 != strcmp(trim($arawdatav[0]), "190"))) {
$result = chop($arawdatav[9]);
break;
} else if (preg_match("/Current Drive Temperature:\s+(\d+) C.*/", $rawdatav, $matches)) {
$result = $matches[1];
break;
}
}
return $result;
}
/**
* Get mount point usage information.
* @return An array containg the requested informations:
* @code
* [mountpoint] => array(
* [mountpoint] => /mnt/xyz
* [name] => xyz
* [filesystem] => /dev/ad0a
* [capacity] => 48%
* [used] => 2.4G
* [avail] => 2.6G
* [size] => 5.4G)
* @endcode
*/
function system_get_mount_usage() {
global $config, $g;
$result = array();
exec("/bin/df -h", $rawdata);
foreach ($rawdata as $line) {
if (0 == preg_match("/^(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\d+%)\s+(.+)/", $line, $aline))
continue;
$filesystem = chop($aline[1]);
$size = chop($aline[2]);
$used = chop($aline[3]);
$avail = chop($aline[4]);
$capacity = chop($aline[5]);
$mountpoint = chop($aline[6]);
if (is_array($config['mounts']['mount'])) {
foreach ($config['mounts']['mount'] as $mountcfg) {
if (0 == strcmp($mountpoint, "{$g['media_path']}/{$mountcfg['sharename']}")) {
$result[$mountpoint] = array();
$result[$mountpoint]['mountpoint'] = $mountpoint;
$result[$mountpoint]['name'] = $mountcfg['sharename'];
$result[$mountpoint]['filesystem'] = $filesystem;
$result[$mountpoint]['capacity'] = $capacity;
$result[$mountpoint]['avail'] = $avail;
$result[$mountpoint]['used'] = $used;
$result[$mountpoint]['size'] = $size;
}
}
}
}
return $result;
}
/**
* Get various system informations.
* @return An array containing the system informations.
*/
function system_get_sysinfo() {
$value['hostname'] = system_get_hostname();
// Get uptime and date.
$value['uptime'] = system_get_uptime();
$value['date'] = shell_exec("date");
// Get RAM usage.
$raminfo = system_get_ram_info();
$percentage = round(($raminfo['used'] * 100) / $raminfo['total'], 0);
$value['memusage']['percentage'] = $percentage;
$value['memusage']['caption'] = sprintf(gettext("%d%% of %dMB"), $percentage, round($raminfo['physical'] / 1024 / 1024));
// Get load average.
exec("uptime", $result);
$value['loadaverage'] = substr(strrchr($result[0], "load averages:"), 15);
// Get up-to-date CPU informations.
$cpuinfo = system_get_cpu_info();
$value['cputemp'] = $cpuinfo['temperature'];
$value['cpufreq'] = $cpuinfo['freq'];
// Get CPU usage.
$value['cpuusage'] = system_get_cpu_usage();
// Get disk usage.
$a_diskusage = system_get_mount_usage();
if (is_array($a_diskusage) && (0 < count($a_diskusage))) {
foreach ($a_diskusage as $diskusagek => $diskusagev) {
$fsid = get_mount_fsid($diskusagev['filesystem'], $diskusagek);
$diskinfo = array();
$diskinfo['id'] = $fsid;
$diskinfo['mountpoint'] = $diskusagev['mountpoint'];
$diskinfo['name'] = $diskusagev['name'];
$diskinfo['capacity'] = $diskusagev['capacity'];
$diskinfo['percentage'] = rtrim($diskusagev['capacity'], "%");
$diskinfo['size'] = $diskusagev['size'];
$diskinfo['used'] = $diskusagev['used'];
$diskinfo['avail'] = $diskusagev['avail'];
$diskinfo['tooltip']['used'] = sprintf(gettext("%sB used of %sB"), $diskusagev['used'], $diskusagev['size']);
$diskinfo['tooltip']['available'] = sprintf(gettext("%sB available of %sB"), $diskusagev['avail'], $diskusagev['size']);
$value['diskusage'][] = $diskinfo;
}
}
// Get swap info.
$swapinfo = system_get_swap_info();
if (is_array($swapinfo) && (0 < count($swapinfo))) {
$id = 0;
foreach ($swapinfo as $swapv) {
$swapinfo = array();
$swapinfo['id'] = $id++;
$swapinfo['device'] = $swapv['device'];
$swapinfo['capacity'] = $swapv['capacity'];
$swapinfo['percentage'] = rtrim($swapv['capacity'], "%");
$swapinfo['total'] = $swapv['total'];
$swapinfo['used'] = $swapv['used'];
$swapinfo['avail'] = $swapv['avail'];
$swapinfo['tooltip']['used'] = sprintf(gettext("%sB used of %sB"), $swapv['used'], $swapv['total']);
$swapinfo['tooltip']['available'] = sprintf(gettext("%sB available of %sB"), $swapv['avail'], $swapv['total']);
$value['swapusage'][]= $swapinfo;
}
}
return $value;
}
?>
