pfSense

<?

/*

	functions.inc.php

	pfSense_MODULE:	ajax

	Copyright (C) 2013-2015 Electric Sheep Fencing, LP

*/

if(Connection_Aborted()) {

	exit;

}

require_once("config.inc");

require_once("pfsense-utils.inc");

function get_stats() {

	$stats['cpu'] = cpu_usage();

	$stats['mem'] = mem_usage();

	$stats['uptime'] = get_uptime();

	$stats['states'] = get_pfstate();

	$stats['temp'] = get_temp();

	$stats['datetime'] = update_date_time();

	$stats['interfacestatistics'] = get_interfacestats();

	$stats['interfacestatus'] = get_interfacestatus();

	$stats['gateways'] = get_gatewaystats();

	$stats['cpufreq'] = get_cpufreq();

	$stats['load_average'] = get_load_average();

	$stats['mbuf'] = get_mbuf();

	$stats['mbufpercent'] = get_mbuf(true);

	$stats['statepercent'] = get_pfstate(true);

	$stats = join("|", $stats);

	return $stats;

}

function get_gatewaystats() {

	$a_gateways = return_gateways_array();

	$gateways_status = array();

	$gateways_status = return_gateways_status(true);

	$data = "";

	$isfirst = true;

	foreach($a_gateways as $gname => $gw) {

		if(!$isfirst)

			$data .= ",";

		$isfirst = false;

		$data .= $gw['name'] . ",";

		if ($gateways_status[$gname]) {

			$data .= "<b>" . lookup_gateway_ip_by_name($gname) . "</b>,";

			$gws = $gateways_status[$gname];

			switch(strtolower($gws['status'])) {

			case "none":

				$online = "Online";

				$bgcolor = "#90EE90";  // lightgreen

				break;

			case "down":

				$online = "Offline";

				$bgcolor = "#F08080";  // lightcoral

				break;

			case "delay":

				$online = "Latency";

				$bgcolor = "#F0E68C";  // khaki

				break;

			case "loss":

				$online = "Packetloss";

				$bgcolor = "#F0E68C";  // khaki

				break;

			default:

				$online = "Pending";

				break;

			}

		} else {

			$data .= "~,";

			$gws['delay'] = "~";

			$gws['loss'] = "~";

			$online = "Unknown";

			$bgcolor = "#ADD8E6";  // lightblue

		}

		$data .= ($online == "Pending") ? "{$online},{$online}," : "{$gws['delay']},{$gws['loss']},";

		$data .= "{$online}^{$bgcolor}";

	}

	return $data;

}

function get_uptime() {

	$uptime = get_uptime_sec();

	if(intval($uptime) == 0)

		return;

	$updays = (int)($uptime / 86400);

	$uptime %= 86400;

	$uphours = (int)($uptime / 3600);

	$uptime %= 3600;

	$upmins = (int)($uptime / 60);

	$uptime %= 60;

	$upsecs = (int)($uptime);

	$uptimestr = "";

	if ($updays > 1)

		$uptimestr .= "$updays Days ";

	else if ($updays > 0)

		$uptimestr .= "1 Day ";

	if ($uphours > 1)

		$hours = "s";

	if ($upmins > 1)

		$minutes = "s";

	if ($upmins > 1)

		$seconds = "s";

	$uptimestr .= sprintf("%02d Hour$hours %02d Minute$minutes %02d Second$seconds", $uphours, $upmins, $upsecs);

	return $uptimestr;

}

/* Calculates non-idle CPU time and returns as a percentage */

function cpu_usage() {

	$duration = 1;

	$diff = array('user', 'nice', 'sys', 'intr', 'idle');

	$cpuTicks = array_combine($diff, explode(" ", get_single_sysctl('kern.cp_time')));

	sleep($duration);

	$cpuTicks2 = array_combine($diff, explode(" ", get_single_sysctl('kern.cp_time')));

	$totalStart = array_sum($cpuTicks);

	$totalEnd = array_sum($cpuTicks2);

	// Something wrapped ?!?!

	if ($totalEnd <= $totalStart)

		return 0;

	// Calculate total cycles used

	$totalUsed = ($totalEnd - $totalStart) - ($cpuTicks2['idle'] - $cpuTicks['idle']);

	// Calculate the percentage used

	$cpuUsage = floor(100 * ($totalUsed / ($totalEnd - $totalStart)));

	return $cpuUsage;

}

function get_pfstate($percent=false) {

	global $config;

	$matches = "";

	if (isset($config['system']['maximumstates']) and $config['system']['maximumstates'] > 0)

		$maxstates="{$config['system']['maximumstates']}";

	else

		$maxstates=pfsense_default_state_size();

	$curentries = `/sbin/pfctl -si |grep current`;

	if (preg_match("/([0-9]+)/", $curentries, $matches)) {

		$curentries = $matches[1];

	}

	if (!is_numeric($curentries))

		$curentries = 0;

	if ($percent)

		if (intval($maxstates) > 0)

			return round(($curentries / $maxstates) * 100, 0);

		else

			return "NA";

	else

		return $curentries . "/" . $maxstates;

}

function has_temp() {

	/* no known temp monitors available at present */

	/* should only reach here if there is no hardware monitor */

	return false;

}

function get_hwtype() {

	return;

}

function get_mbuf($percent=false) {

	$mbufs_output=trim(`/usr/bin/netstat -mb | /usr/bin/grep "mbuf clusters in use" | /usr/bin/awk '{ print $1 }'`);

	list( $mbufs_current, $mbufs_cache, $mbufs_total, $mbufs_max ) = explode( "/", $mbufs_output);

	if ($percent)

		if ($mbufs_max > 0)

			return round(($mbufs_total / $mbufs_max) * 100, 0);

		else

			return "NA";

	else

		return "{$mbufs_total}/{$mbufs_max}";

}

function get_temp() {

	$temp_out = get_single_sysctl("dev.cpu.0.temperature");

	if ($temp_out == "")

		$temp_out = get_single_sysctl("hw.acpi.thermal.tz0.temperature");

	// Remove 'C' from the end

	return rtrim($temp_out, 'C');

}

/* Get mounted filesystems and usage. Do not display entries for virtual filesystems (e.g. devfs, nullfs, unionfs) */

function get_mounted_filesystems() {

	$mout = "";

	$filesystems = array();

	exec("/bin/df -Tht ufs,zfs,cd9660 | /usr/bin/awk '{print $1, $2, $3, $6, $7;}'", $mout);

	/* Get rid of the header */

	array_shift($mout);

	foreach ($mout as $fs) {

		$f = array();

		list($f['device'], $f['type'], $f['total_size'], $f['percent_used'], $f['mountpoint']) = explode(' ', $fs);

		/* We dont' want the trailing % sign. */

		$f['percent_used'] = trim($f['percent_used'], '%');

		$filesystems[] = $f;

	}

	return $filesystems;

}

function disk_usage($slice = '/') {

	$dfout = "";

	exec("/bin/df -h {$slice} | /usr/bin/tail -n 1 | /usr/bin/awk '{ print $5 }' | /usr/bin/cut -d '%' -f 1", $dfout);

	$diskusage = trim($dfout[0]);

	return $diskusage;

}

function swap_usage() {

	exec("/usr/sbin/swapinfo", $swap_info);

	$swap_used = "";

	foreach ($swap_info as $line)

		if (preg_match('/(\d+)%$/', $line, $matches)) {

			$swap_used = $matches[1];

			break;

		}

	return $swap_used;

}

function mem_usage() {

	$totalMem = get_single_sysctl("vm.stats.vm.v_page_count");

	if ($totalMem > 0) {

		$inactiveMem = get_single_sysctl("vm.stats.vm.v_inactive_count");

		$cachedMem = get_single_sysctl("vm.stats.vm.v_cache_count");

		$freeMem = get_single_sysctl("vm.stats.vm.v_free_count");

		$usedMem = $totalMem - ($inactiveMem + $cachedMem + $freeMem);

		$memUsage = round(($usedMem * 100) / $totalMem, 0);

	} else

		$memUsage = "NA";

	return $memUsage;

}

function update_date_time() {

	$datetime = date("D M j G:i:s T Y");

	return $datetime;

}

function get_cpufreq() {

	$cpufreqs = "";

	$out = "";

	$cpufreqs = explode(" ", get_single_sysctl('dev.cpu.0.freq_levels'));

	$maxfreq = explode("/", $cpufreqs[0]);

	$maxfreq = $maxfreq[0];

	$curfreq = "";

	$curfreq = get_single_sysctl('dev.cpu.0.freq');

	if (($curfreq > 0) && ($curfreq != $maxfreq))

		$out = "Current: {$curfreq} MHz, Max: {$maxfreq} MHz";

	return $out;

}

function get_cpu_count($show_detail = false) {

	$cpucount = get_single_sysctl('kern.smp.cpus');

	if ($show_detail) {

		$cpudetail = "";

		exec("/usr/bin/grep 'SMP.*package.*core' /var/log/dmesg.boot | /usr/bin/cut -f2- -d' '", $cpudetail);

		$cpucount = $cpudetail[0];

	}

	return $cpucount;

}

function get_load_average() {

	$load_average = "";

	exec("/usr/bin/uptime | /usr/bin/sed 's/^.*: //'", $load_average);

	return $load_average[0];

}

function get_interfacestats() {

	global $config;

	//build interface list for widget use

	$ifdescrs = get_configured_interface_list();

	$array_in_packets = array();

	$array_out_packets = array();

	$array_in_bytes = array();

	$array_out_bytes = array();

	$array_in_errors = array();

	$array_out_errors = array();

	$array_collisions = array();

	$array_interrupt = array();

	$new_data = "";

	//build data arrays

	foreach ($ifdescrs as $ifdescr => $ifname){

		$ifinfo = get_interface_info($ifdescr);

			$new_data .= "{$ifinfo['inpkts']},";

			$new_data .= "{$ifinfo['outpkts']},";

			$new_data .= format_bytes($ifinfo['inbytes']) . ",";

			$new_data .= format_bytes($ifinfo['outbytes']) . ",";

			if (isset($ifinfo['inerrs'])){

				$new_data .= "{$ifinfo['inerrs']},";

				$new_data .= "{$ifinfo['outerrs']},";

			}

			else{

				$new_data .= "0,";

				$new_data .= "0,";

			}

			if (isset($ifinfo['collisions']))

				$new_data .= htmlspecialchars($ifinfo['collisions']) . ",";

			else

				$new_data .= "0,";

	}//end for

	return $new_data;

}

function get_interfacestatus() {

	$data = "";

	global $config;

	//build interface list for widget use

	$ifdescrs = get_configured_interface_with_descr();

	foreach ($ifdescrs as $ifdescr => $ifname){

		$ifinfo = get_interface_info($ifdescr);

		$data .= $ifname . ",";

		if($ifinfo['status'] == "up" || $ifinfo['status'] == "associated") {

			$data .= "up";

		}else if ($ifinfo['status'] == "no carrier") {

			$data .= "down";

		}else if ($ifinfo['status'] == "down") {

			$data .= "block";

		}

		$data .= ",";

		if ($ifinfo['ipaddr'])

			$data .= "<strong>" . htmlspecialchars($ifinfo['ipaddr']) . "</strong>";

		$data .= ",";

		if ($ifinfo['ipaddrv6'])

			$data .= "<strong>" . htmlspecialchars($ifinfo['ipaddrv6']) . "</strong>";

		$data .= ",";

		if ($ifinfo['status'] != "down")

			$data .= htmlspecialchars($ifinfo['media']);

		$data .= "~";

	}

	return $data;

}

?>