pfSense

<?php

/*

 * functions.inc.php

 *

 * part of pfSense (https://www.pfsense.org)

 * Copyright (c) 2013-2016 Rubicon Communications, LLC (Netgate)

 * All rights reserved.

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 * http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

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['cpufreq'] = get_cpufreq();

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

	get_mbuf($stats['mbuf'], $stats['mbufpercent']);

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

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

	return $stats;

}

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(&$mbuf, &$mbufpercent) {

	$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);

	$mbuf = "{$mbufs_total}/{$mbufs_max}";

	$mbufpercent = ($mbufs_max > 0) ? round(($mbufs_total / $mbufs_max) * 100, 0) : "NA";

}

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 and spaces

	$temp_out = trim(rtrim($temp_out, 'C'));

	if ($temp_out[0] == '-') {

		return '';

	}

	return $temp_out;

}

/* 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_crypto_support() {

	$machine = get_single_sysctl('hw.machine');

	$accelerated_arm_platforms = array('am335x');

	$cpucrypto_type = "";

	switch ($machine) {

		case 'amd64':

			$cpucrypto_type = "AES-NI CPU Crypto: ";

			exec("/usr/bin/grep -c '  Features.*AESNI' /var/log/dmesg.boot", $cpucrypto_present);

			if ($cpucrypto_present[0] > 0) {

				$cpucrypto_type .= "Yes ";

				$cpucrypto_type .= ($cpucrypto_active) ? "(active)" : "(inactive)";

			} else {

				$cpucrypto_type .= "No";

			}

			$cpucrypto_active = is_module_loaded('aesni');

		case 'arm':

			$armplatform = get_single_sysctl('hw.platform');

			if (in_array($armplatform, $accelerated_arm_platforms)) {

				/* No drivers yet, so mark inactive! */

				$cpucrypto_type = "{$armplatform} built-in CPU Crypto (inactive)";

			}

		default:

			/* Unknown/unidentified platform */

	}

	if (!empty($cpucrypto_type)) {

		return $cpucrypto_type;

	} else {

		return "CPU Crypto: None/Unknown Platform";

	}

}

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;

}

?>