pfSense

<?

if(Connection_Aborted()) {

	exit;

}

require_once("config.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 = join("|", $stats);

	return $stats;

}

function get_uptime() {

	$boottime = "";

	$matches = "";

	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);

	$uptimestr = "";

	if ($updays > 1)

		$uptimestr .= "$updays days, ";

	else if ($updays > 0)

		$uptimestr .= "1 day, ";

	$uptimestr .= sprintf("%02d:%02d", $uphours, $upmins);

	return $uptimestr;

}

function cpu_usage() {

	$cpuTicks = explode(" ", `/sbin/sysctl -n kern.cp_time`);

	sleep(1);

	$cpuTicks2 = explode(" ", `/sbin/sysctl -n kern.cp_time`);

	$diff = array();

	$diff['user'] = ($cpuTicks2[0] - $cpuTicks[0]);

	$diff['nice'] = ($cpuTicks2[1] - $cpuTicks[1]);

	$diff['sys'] = ($cpuTicks2[2] - $cpuTicks[2]);

	$diff['intr'] = ($cpuTicks2[3] - $cpuTicks[3]);

	$diff['idle'] = ($cpuTicks2[4] - $cpuTicks[4]);

	//echo "<!-- user: {$diff['user']}  nice {$diff['nice']}  sys {$diff['sys']}  intr {$diff['intr']}  idle {$diff['idle']} -->";

	$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;

		}

	$cpuUsage = floor(100 * ($totalused / $totalDiff));

	return $cpuUsage;

}

function get_pfstate() {

	global $config;

	$matches = "";

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

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

	else

	        $maxstates="/10000";

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

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

	     $curentries = $matches[1];

	}

	return $curentries . $maxstates;

}

function has_temp() {

	if(`/sbin/dmesg -a | /usr/bin/grep net4801` <> "") {

		/* Initialize hw monitor */

		exec("/usr/local/sbin/env4801 -i");

		return true;

	}

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

	return false;

}

function get_hwtype() {

        if(`/sbin/dmesg -a | /usr/bin/grep net4801` <> "") {

                return "4801";

        }

	return;

}

function get_temp() {

	switch(get_hwtype()) {

		case '4801':

			$ret = rtrim(`/usr/local/sbin/env4801 | /usr/bin/grep Temp |/usr/bin/cut -c24-25`);

			break;

		default:

			return;

	}

	return $ret;

}

function disk_usage()

{

	$dfout = "";

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

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

	return $diskusage;

}

function swap_usage()

{

	$swapUsage = `/usr/sbin/swapinfo | /usr/bin/cut -c45-55 | /usr/bin/grep "%"`;

	$swapUsage = ereg_replace('%', "", $swapUsage);

	$swapUsage = ereg_replace(' ', "", $swapUsage);

	$swapUsage = rtrim($swapUsage);

	return $swapUsage;

}

function mem_usage()

{

	$memory = "";

	exec("/sbin/sysctl -n vm.stats.vm.v_page_count vm.stats.vm.v_inactive_count " .

		"vm.stats.vm.v_cache_count vm.stats.vm.v_free_count", $memory);

	$totalMem = $memory[0];

	$availMem = $memory[1] + $memory[2] + $memory[3];

	$usedMem = $totalMem - $availMem;

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

	return $memUsage;

}