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<?php
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/*
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functions.inc.php
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Copyright (C) 2013-2015 Electric Sheep Fencing, LP
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*/
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if (Connection_Aborted()) {
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exit;
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}
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require_once("config.inc");
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require_once("pfsense-utils.inc");
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function get_stats() {
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$stats['cpu'] = cpu_usage();
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$stats['mem'] = mem_usage();
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$stats['uptime'] = get_uptime();
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$stats['states'] = get_pfstate();
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$stats['temp'] = get_temp();
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$stats['datetime'] = update_date_time();
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$stats['interfacestatistics'] = get_interfacestats();
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$stats['interfacestatus'] = get_interfacestatus();
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$stats['cpufreq'] = get_cpufreq();
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$stats['load_average'] = get_load_average();
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$stats['mbuf'] = get_mbuf();
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$stats['mbufpercent'] = get_mbuf(true);
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$stats['statepercent'] = get_pfstate(true);
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$stats = join("|", $stats);
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return $stats;
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}
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function get_uptime() {
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$uptime = get_uptime_sec();
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if (intval($uptime) == 0) {
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return;
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}
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$updays = (int)($uptime / 86400);
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$uptime %= 86400;
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$uphours = (int)($uptime / 3600);
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$uptime %= 3600;
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$upmins = (int)($uptime / 60);
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$uptime %= 60;
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$upsecs = (int)($uptime);
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$uptimestr = "";
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if ($updays > 1) {
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$uptimestr .= "$updays Days ";
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} else if ($updays > 0) {
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$uptimestr .= "1 Day ";
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}
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if ($uphours > 1) {
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$hours = "s";
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}
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if ($upmins > 1) {
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$minutes = "s";
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}
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if ($upmins > 1) {
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$seconds = "s";
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}
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$uptimestr .= sprintf("%02d Hour$hours %02d Minute$minutes %02d Second$seconds", $uphours, $upmins, $upsecs);
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return $uptimestr;
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}
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/* Calculates non-idle CPU time and returns as a percentage */
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function cpu_usage() {
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$duration = 1;
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$diff = array('user', 'nice', 'sys', 'intr', 'idle');
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$cpuTicks = array_combine($diff, explode(" ", get_single_sysctl('kern.cp_time')));
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sleep($duration);
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$cpuTicks2 = array_combine($diff, explode(" ", get_single_sysctl('kern.cp_time')));
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$totalStart = array_sum($cpuTicks);
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$totalEnd = array_sum($cpuTicks2);
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// Something wrapped ?!?!
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if ($totalEnd <= $totalStart) {
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return 0;
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}
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// Calculate total cycles used
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$totalUsed = ($totalEnd - $totalStart) - ($cpuTicks2['idle'] - $cpuTicks['idle']);
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// Calculate the percentage used
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$cpuUsage = floor(100 * ($totalUsed / ($totalEnd - $totalStart)));
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return $cpuUsage;
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}
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function get_pfstate($percent=false) {
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global $config;
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$matches = "";
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if (isset($config['system']['maximumstates']) and $config['system']['maximumstates'] > 0) {
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$maxstates="{$config['system']['maximumstates']}";
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} else {
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$maxstates=pfsense_default_state_size();
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}
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$curentries = `/sbin/pfctl -si |grep current`;
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if (preg_match("/([0-9]+)/", $curentries, $matches)) {
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$curentries = $matches[1];
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}
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if (!is_numeric($curentries)) {
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$curentries = 0;
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}
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if ($percent) {
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if (intval($maxstates) > 0) {
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return round(($curentries / $maxstates) * 100, 0);
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} else {
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return "NA";
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}
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} else {
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return $curentries . "/" . $maxstates;
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}
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}
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function has_temp() {
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/* no known temp monitors available at present */
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/* should only reach here if there is no hardware monitor */
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return false;
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}
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function get_hwtype() {
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return;
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}
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function get_mbuf($percent=false) {
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$mbufs_output=trim(`/usr/bin/netstat -mb | /usr/bin/grep "mbuf clusters in use" | /usr/bin/awk '{ print $1 }'`);
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list($mbufs_current, $mbufs_cache, $mbufs_total, $mbufs_max) = explode("/", $mbufs_output);
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if ($percent) {
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if ($mbufs_max > 0) {
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return round(($mbufs_total / $mbufs_max) * 100, 0);
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} else {
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return "NA";
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}
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} else {
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return "{$mbufs_total}/{$mbufs_max}";
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}
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}
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function get_temp() {
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$temp_out = get_single_sysctl("dev.cpu.0.temperature");
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if ($temp_out == "") {
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$temp_out = get_single_sysctl("hw.acpi.thermal.tz0.temperature");
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}
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// Remove 'C' from the end and spaces
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$temp_out = trim(rtrim($temp_out, 'C'));
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if ($temp_out[0] == '-') {
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return '';
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}
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return $temp_out;
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}
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/* Get mounted filesystems and usage. Do not display entries for virtual filesystems (e.g. devfs, nullfs, unionfs) */
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function get_mounted_filesystems() {
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$mout = "";
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$filesystems = array();
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exec("/bin/df -Tht ufs,zfs,cd9660 | /usr/bin/awk '{print $1, $2, $3, $6, $7;}'", $mout);
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/* Get rid of the header */
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array_shift($mout);
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foreach ($mout as $fs) {
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$f = array();
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list($f['device'], $f['type'], $f['total_size'], $f['percent_used'], $f['mountpoint']) = explode(' ', $fs);
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/* We dont' want the trailing % sign. */
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$f['percent_used'] = trim($f['percent_used'], '%');
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$filesystems[] = $f;
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}
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return $filesystems;
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}
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function disk_usage($slice = '/') {
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$dfout = "";
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exec("/bin/df -h {$slice} | /usr/bin/tail -n 1 | /usr/bin/awk '{ print $5 }' | /usr/bin/cut -d '%' -f 1", $dfout);
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$diskusage = trim($dfout[0]);
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return $diskusage;
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}
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function swap_usage() {
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exec("/usr/sbin/swapinfo", $swap_info);
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$swap_used = "";
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foreach ($swap_info as $line) {
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if (preg_match('/(\d+)%$/', $line, $matches)) {
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$swap_used = $matches[1];
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break;
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}
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}
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return $swap_used;
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}
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function mem_usage() {
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$totalMem = get_single_sysctl("vm.stats.vm.v_page_count");
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if ($totalMem > 0) {
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$inactiveMem = get_single_sysctl("vm.stats.vm.v_inactive_count");
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$cachedMem = get_single_sysctl("vm.stats.vm.v_cache_count");
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$freeMem = get_single_sysctl("vm.stats.vm.v_free_count");
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$usedMem = $totalMem - ($inactiveMem + $cachedMem + $freeMem);
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$memUsage = round(($usedMem * 100) / $totalMem, 0);
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} else {
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$memUsage = "NA";
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}
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return $memUsage;
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}
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function update_date_time() {
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$datetime = date("D M j G:i:s T Y");
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return $datetime;
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}
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function get_cpufreq() {
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$cpufreqs = "";
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$out = "";
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$cpufreqs = explode(" ", get_single_sysctl('dev.cpu.0.freq_levels'));
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$maxfreq = explode("/", $cpufreqs[0]);
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$maxfreq = $maxfreq[0];
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$curfreq = "";
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$curfreq = get_single_sysctl('dev.cpu.0.freq');
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if (($curfreq > 0) && ($curfreq != $maxfreq)) {
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$out = "Current: {$curfreq} MHz, Max: {$maxfreq} MHz";
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}
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return $out;
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}
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function get_cpu_count($show_detail = false) {
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$cpucount = get_single_sysctl('kern.smp.cpus');
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if ($show_detail) {
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$cpudetail = "";
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exec("/usr/bin/grep 'SMP.*package.*core' /var/log/dmesg.boot | /usr/bin/cut -f2- -d' '", $cpudetail);
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$cpucount = $cpudetail[0];
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}
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return $cpucount;
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}
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function get_load_average() {
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$load_average = "";
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exec("/usr/bin/uptime | /usr/bin/sed 's/^.*: //'", $load_average);
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return $load_average[0];
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}
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function get_interfacestats() {
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global $config;
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//build interface list for widget use
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$ifdescrs = get_configured_interface_list();
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$array_in_packets = array();
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$array_out_packets = array();
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$array_in_bytes = array();
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$array_out_bytes = array();
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$array_in_errors = array();
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$array_out_errors = array();
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$array_collisions = array();
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$array_interrupt = array();
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$new_data = "";
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//build data arrays
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foreach ($ifdescrs as $ifdescr => $ifname) {
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$ifinfo = get_interface_info($ifdescr);
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$new_data .= "{$ifinfo['inpkts']},";
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$new_data .= "{$ifinfo['outpkts']},";
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$new_data .= format_bytes($ifinfo['inbytes']) . ",";
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$new_data .= format_bytes($ifinfo['outbytes']) . ",";
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if (isset($ifinfo['inerrs'])) {
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$new_data .= "{$ifinfo['inerrs']},";
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$new_data .= "{$ifinfo['outerrs']},";
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} else {
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$new_data .= "0,";
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$new_data .= "0,";
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}
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if (isset($ifinfo['collisions'])) {
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$new_data .= htmlspecialchars($ifinfo['collisions']) . ",";
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} else {
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$new_data .= "0,";
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}
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}//end for
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return $new_data;
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}
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function get_interfacestatus() {
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$data = "";
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global $config;
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//build interface list for widget use
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$ifdescrs = get_configured_interface_with_descr();
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foreach ($ifdescrs as $ifdescr => $ifname) {
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$ifinfo = get_interface_info($ifdescr);
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$data .= $ifname . "^";
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if ($ifinfo['status'] == "up" || $ifinfo['status'] == "associated") {
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$data .= "up";
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} else if ($ifinfo['status'] == "no carrier") {
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$data .= "down";
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} else if ($ifinfo['status'] == "down") {
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$data .= "block";
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}
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$data .= "^";
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if ($ifinfo['ipaddr']) {
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$data .= "<strong>" . htmlspecialchars($ifinfo['ipaddr']) . "</strong>";
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}
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$data .= "^";
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if ($ifinfo['ipaddrv6']) {
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$data .= "<strong>" . htmlspecialchars($ifinfo['ipaddrv6']) . "</strong>";
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}
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$data .= "^";
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if ($ifinfo['status'] != "down") {
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$data .= htmlspecialchars($ifinfo['media']);
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}
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$data .= "~";
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}
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return $data;
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}
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?>
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