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<?php /* $Id$ */ /*
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util.inc
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part of m0n0wall (http://m0n0.ch/wall)
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Copyright (C) 2003-2004 Manuel Kasper <mk@neon1.net>.
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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/* kill a process by pid file */
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function killbypid($pidfile) {
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sigkillbypid($pidfile, "TERM");
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}
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function isvalidpid($pid) {
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$running = `ps -p $pid | wc -l`;
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if(intval($running) > 1)
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return true;
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else
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return false;
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}
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function is_process_running($process) {
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$running = (trim(shell_exec("ps axwu | grep '\b{$process}\b' | grep -v 'grep'")) != '');
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return $running;
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}
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function isvalidproc($proc) {
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$running = is_process_running($proc);
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if (intval($running) >= 1)
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return true;
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else
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return false;
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}
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/* sigkill a process by pid file */
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/* return 1 for success and 0 for a failure */
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function sigkillbypid($pidfile, $sig) {
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if (is_file($pidfile)) {
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$pid = trim(file_get_contents($pidfile));
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if(isvalidpid($pid))
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return mwexec("/bin/kill -s $sig {$pid}", true);
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}
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return 0;
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}
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/* kill a process by name */
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function sigkillbyname($procname, $sig) {
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if(isvalidproc($procname))
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return mwexec("/usr/bin/killall -{$sig} " . escapeshellarg($procname), true);
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}
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/* kill a process by name */
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function killbyname($procname) {
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if(isvalidproc($procname))
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mwexec("/usr/bin/killall " . escapeshellarg($procname));
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}
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function is_subsystem_dirty($subsystem = "") {
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global $g;
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if ($subsystem == "")
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return false;
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if (file_exists("{$g['varrun_path']}/{$subsystem}.dirty"))
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return true;
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return false;
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}
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function mark_subsystem_dirty($subsystem = "") {
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global $g;
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if (!file_put_contents("{$g['varrun_path']}/{$subsystem}.dirty", "DIRTY"))
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log_error("WARNING: Could not mark subsystem: {$subsytem} dirty");
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}
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function clear_subsystem_dirty($subsystem = "") {
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global $g;
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@unlink("{$g['varrun_path']}/{$subsystem}.dirty");
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}
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function config_lock() {
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log_error("config_lock() is depricated please use lock().");
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return;
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}
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function config_unlock() {
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log_error("config_unlock() is depricated please use unlock().");
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return;
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}
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/* lock configuration file */
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function lock($lock) {
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global $g, $cfglckkeyconsumers;
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if (!$lock)
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die("WARNING: You must give a name as parameter to lock() function.");
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if (!file_exists("{$g['tmp_path']}/{$lock}.lock"))
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@touch("{$g['tmp_path']}/{$lock}.lock");
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$config_lock_key = ftok("{$g['tmp_path']}/{$lock}.lock", 'a');
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$cfglckkey = sem_get($config_lock_key, 1);
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$cfglckkeyconsumers++;
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// Rely on or own logging for errors here.
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ini_set('error_reporting', E_NONE);
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if (!sem_acquire($cfglckkey)) {
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log_error("WARNING: lock() - Could not acquire {$lock} lock!");
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sem_remove($cfglckkey);
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return NULL;
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} else if ($g['debug'])
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log_error("lock() - Got {$file} lock.");
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ini_set('error_reporting', E_ALL & ~E_NOTICE);
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return $cfglckkey;
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}
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/* unlock configuration file */
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function unlock($cfglckkey = 0) {
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global $g, $cfglckkeyconsumers;
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if ($cfglckkey == 0)
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return;
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// Rely on or own logging for errors here.
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ini_set('error_reporting', E_NONE);
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if (!sem_release($cfglckkey))
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log_error("WARNING: unlock() - Could not unlock lock.");
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else {
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if ($g['debug'])
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log_error("Released lock.");
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ini_set('error_reporting', E_NONE);
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sem_remove($cfglckkey);
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ini_set('error_reporting', E_ALL & ~E_NOTICE);
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}
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$cfglckkeyconsumers--;
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ini_set('error_reporting', E_ALL & ~E_NOTICE);
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}
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function is_module_loaded($module_name) {
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$running = `/sbin/kldstat | grep {$module_name} | /usr/bin/grep -v grep | /usr/bin/wc -l`;
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if (intval($running) >= 1)
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return true;
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else
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return false;
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}
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/* return the subnet address given a host address and a subnet bit count */
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function gen_subnet($ipaddr, $bits) {
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if (!is_ipaddr($ipaddr) || !is_numeric($bits))
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return "";
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return long2ip(ip2long($ipaddr) & gen_subnet_mask_long($bits));
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}
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/* return the highest (broadcast) address in the subnet given a host address and a subnet bit count */
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function gen_subnet_max($ipaddr, $bits) {
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if (!is_ipaddr($ipaddr) || !is_numeric($bits))
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return "";
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return long2ip(ip2long($ipaddr) | ~gen_subnet_mask_long($bits));
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}
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/* returns a subnet mask (long given a bit count) */
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function gen_subnet_mask_long($bits) {
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$sm = 0;
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for ($i = 0; $i < $bits; $i++) {
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$sm >>= 1;
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$sm |= 0x80000000;
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}
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return $sm;
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}
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/* same as above but returns a string */
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function gen_subnet_mask($bits) {
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return long2ip(gen_subnet_mask_long($bits));
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}
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function is_numericint($arg) {
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return (preg_match("/[^0-9]/", $arg) ? false : true);
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}
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/* returns true if $ipaddr is a valid dotted IPv4 address */
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function is_ipaddr($ipaddr) {
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if (!is_string($ipaddr))
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return false;
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$ip_long = ip2long($ipaddr);
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$ip_reverse = long2ip($ip_long);
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if ($ipaddr == $ip_reverse)
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return true;
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else
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return false;
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}
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/* returns true if $ipaddr is a valid dotted IPv4 address or an alias thereof */
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function is_ipaddroralias($ipaddr) {
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global $aliastable, $config;
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if(is_array($config['aliases']['alias'])) {
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foreach($config['aliases']['alias'] as $alias) {
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if($alias['name'] == $ipaddr)
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return true;
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}
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}
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if (isset($aliastable[$ipaddr]) && is_ipaddr($aliastable[$ipaddr]))
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return true;
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else
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return is_ipaddr($ipaddr);
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}
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/* returns true if $ipaddr is a valid dotted IPv4 address or any alias */
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function is_ipaddroranyalias($ipaddr) {
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global $aliastable;
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if (isset($aliastable[$ipaddr]))
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return true;
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else
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return is_ipaddr($ipaddr);
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}
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/* returns true if $subnet is a valid subnet in CIDR format */
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function is_subnet($subnet) {
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if (!is_string($subnet))
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return false;
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list($hp,$np) = explode('/', $subnet);
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if (!is_ipaddr($hp))
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return false;
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if (!is_numeric($np) || ($np < 1) || ($np > 32))
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return false;
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return true;
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}
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/* returns true if $subnet is a valid subnet in CIDR format or an alias thereof */
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function is_subnetoralias($subnet) {
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global $aliastable;
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if (isset($aliastable[$subnet]) && is_subnet($aliastable[$subnet]))
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return true;
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else
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return is_subnet($subnet);
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}
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/* returns true if $hostname is a valid hostname */
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function is_hostname($hostname) {
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if (!is_string($hostname))
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return false;
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if (preg_match("/^([_a-z0-9\-]+\.?)+$/i", $hostname))
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return true;
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else
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return false;
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}
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/* returns true if $domain is a valid domain name */
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function is_domain($domain) {
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if (!is_string($domain))
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return false;
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if (preg_match("/^([a-z0-9\-]+\.?)+$/i", $domain))
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return true;
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else
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return false;
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}
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/* returns true if $macaddr is a valid MAC address */
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function is_macaddr($macaddr) {
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if (!is_string($macaddr))
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return false;
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$maca = explode(":", $macaddr);
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if (count($maca) != 6)
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return false;
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foreach ($maca as $macel) {
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if (($macel === "") || (strlen($macel) > 2))
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return false;
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if (preg_match("/[^0-9a-f]/i", $macel))
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return false;
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}
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return true;
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}
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/* returns true if $name is a valid name for an alias */
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/* returns NULL if a reserved word is used */
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function is_validaliasname($name) {
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/* Array of reserved words */
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$reserved = array("port", "pass");
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if (in_array($name, $reserved, true))
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return; /* return NULL */
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329
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if (!preg_match("/[^a-zA-Z0-9_]/", $name))
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return true;
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else
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return false;
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}
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334
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335
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/* returns true if $port is a valid TCP/UDP port */
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336
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function is_port($port) {
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337
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if (!is_numericint($port))
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return false;
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339
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340
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if (($port < 1) || ($port > 65535))
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341
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return false;
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342
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else
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343
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return true;
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344
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}
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345
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346
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/* returns true if $portrange is a valid TCP/UDP portrange ("<port>:<port>") */
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347
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function is_portrange($portrange) {
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348
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$ports = explode(":", $portrange);
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349
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350
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if(count($ports) == 2 && is_port($ports[0]) && is_port($ports[1]))
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return true;
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352
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else
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353
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return false;
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354
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}
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355
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356
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/* returns true if $val is a valid shaper bandwidth value */
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357
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function is_valid_shaperbw($val) {
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358
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return (preg_match("/^(\d+(?:\.\d+)?)([MKG]?b|%)$/", $val));
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359
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}
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360
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361
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/* return the configured interfaces list. */
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362
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function get_configured_interface_list($only_opt = false, $withdisabled = false) {
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363
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global $config;
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364
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365
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$iflist = array();
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366
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367
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if (!$only_opt) {
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368
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if (isset($config['interfaces']['wan']))
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369
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$iflist['wan'] = "wan";
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370
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if (isset($config['interfaces']['lan']))
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371
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$iflist['lan'] = "lan";
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372
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}
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373
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374
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/* if list */
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375
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foreach($config['interfaces'] as $if => $ifdetail) {
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376
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if ($if == "wan" || $if == "lan")
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377
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continue;
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378
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if (isset($ifdetail['enable']) || $withdisabled == true)
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379
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$iflist[$if] = $if;
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380
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}
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381
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382
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return $iflist;
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383
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}
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384
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385
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/* return the configured interfaces list. */
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386
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function get_configured_interface_list_by_realif($only_opt = false, $withdisabled = false) {
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387
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global $config;
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388
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389
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$iflist = array();
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390
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391
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if (!$only_opt) {
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392
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if (isset($config['interfaces']['wan'])) {
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393
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$tmpif = get_real_interface("wan");
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|
394
|
if (!empty($tmpif))
|
|
395
|
$iflist[$tmpif] = "wan";
|
|
396
|
}
|
|
397
|
if (isset($config['interfaces']['lan'])) {
|
|
398
|
$tmpif = get_real_interface("lan");
|
|
399
|
if (!empty($tmpif))
|
|
400
|
$iflist[$tmpif] = "lan";
|
|
401
|
}
|
|
402
|
}
|
|
403
|
|
|
404
|
/* if list */
|
|
405
|
foreach($config['interfaces'] as $if => $ifdetail) {
|
|
406
|
if ($if == "wan" || $if == "lan")
|
|
407
|
continue;
|
|
408
|
if (isset($ifdetail['enable']) || $withdisabled == true) {
|
|
409
|
$tmpif = get_real_interface($if);
|
|
410
|
if (!empty($tmpif))
|
|
411
|
$iflist[$tmpif] = $if;
|
|
412
|
}
|
|
413
|
}
|
|
414
|
|
|
415
|
return $iflist;
|
|
416
|
}
|
|
417
|
|
|
418
|
/* return the configured interfaces list with their description. */
|
|
419
|
function get_configured_interface_with_descr($only_opt = false, $withdisabled = false) {
|
|
420
|
global $config;
|
|
421
|
|
|
422
|
$iflist = array();
|
|
423
|
|
|
424
|
if (!$only_opt) {
|
|
425
|
if (isset($config['interfaces']['wan'])) {
|
|
426
|
if (empty($config['interfaces']['wan']['descr']))
|
|
427
|
$iflist['wan'] = "WAN";
|
|
428
|
else
|
|
429
|
$iflist['wan'] = strtoupper($config['interfaces']['wan']['descr']);
|
|
430
|
}
|
|
431
|
if (isset($config['interfaces']['lan'])) {
|
|
432
|
if (empty($config['interfaces']['lan']['descr']))
|
|
433
|
$iflist['lan'] = "LAN";
|
|
434
|
else
|
|
435
|
$iflist['lan'] = strtoupper($config['interfaces']['lan']['descr']);
|
|
436
|
}
|
|
437
|
}
|
|
438
|
|
|
439
|
/* if list */
|
|
440
|
foreach($config['interfaces'] as $if => $ifdetail) {
|
|
441
|
if (isset($ifdetail['enable']) || $withdisabled == true) {
|
|
442
|
if($ifdetail['descr'] == "")
|
|
443
|
$iflist[$if] = strtoupper($if);
|
|
444
|
else
|
|
445
|
$iflist[$if] = strtoupper($ifdetail['descr']);
|
|
446
|
}
|
|
447
|
}
|
|
448
|
|
|
449
|
return $iflist;
|
|
450
|
}
|
|
451
|
|
|
452
|
|
|
453
|
/*
|
|
454
|
* get_interface_list() - Return a list of all physical interfaces
|
|
455
|
* along with MAC and status.
|
|
456
|
*
|
|
457
|
* $mode = "active" - use ifconfig -lu
|
|
458
|
* "media" - use ifconfig to check physical connection
|
|
459
|
* status (much slower)
|
|
460
|
*/
|
|
461
|
function get_interface_list($mode = "active", $keyby = "physical", $vfaces = "") {
|
|
462
|
global $config;
|
|
463
|
$upints = array();
|
|
464
|
/* get a list of virtual interface types */
|
|
465
|
if(!$vfaces) {
|
|
466
|
$vfaces = array (
|
|
467
|
'bridge',
|
|
468
|
'ppp',
|
|
469
|
'sl',
|
|
470
|
'gif',
|
|
471
|
'gre',
|
|
472
|
'faith',
|
|
473
|
'lo',
|
|
474
|
'ng',
|
|
475
|
'vlan',
|
|
476
|
'pflog',
|
|
477
|
'plip',
|
|
478
|
'pfsync',
|
|
479
|
'enc',
|
|
480
|
'tun',
|
|
481
|
'carp',
|
|
482
|
'lagg'
|
|
483
|
);
|
|
484
|
}
|
|
485
|
switch($mode) {
|
|
486
|
case "active":
|
|
487
|
$upints = explode(" ", trim(shell_exec("/sbin/ifconfig -lu")));
|
|
488
|
break;
|
|
489
|
case "media":
|
|
490
|
$intlist = explode(" ", trim(shell_exec("/sbin/ifconfig -l")));
|
|
491
|
$ifconfig = "";
|
|
492
|
exec("/sbin/ifconfig -a", $ifconfig);
|
|
493
|
$regexp = '/(' . implode('|', $intlist) . '):\s/';
|
|
494
|
$ifstatus = preg_grep('/status:/', $ifconfig);
|
|
495
|
foreach($ifstatus as $status) {
|
|
496
|
$int = array_shift($intlist);
|
|
497
|
if(stristr($status, "active")) $upints[] = $int;
|
|
498
|
}
|
|
499
|
break;
|
|
500
|
}
|
|
501
|
/* build interface list with netstat */
|
|
502
|
$linkinfo = "";
|
|
503
|
exec("/usr/bin/netstat -inW -f link | awk '{ print $1, $4 }'", $linkinfo);
|
|
504
|
array_shift($linkinfo);
|
|
505
|
/* build ip address list with netstat */
|
|
506
|
$ipinfo = "";
|
|
507
|
exec("/usr/bin/netstat -inW -f inet | awk '{ print $1, $4 }'", $ipinfo);
|
|
508
|
array_shift($ipinfo);
|
|
509
|
foreach($linkinfo as $link) {
|
|
510
|
$friendly = "";
|
|
511
|
$alink = explode(" ", $link);
|
|
512
|
$ifname = rtrim(trim($alink[0]), '*');
|
|
513
|
/* trim out all numbers before checking for vfaces */
|
|
514
|
if (!in_array(array_shift(preg_split('/\d/', $ifname)), $vfaces)) {
|
|
515
|
$toput = array(
|
|
516
|
"mac" => trim($alink[1]),
|
|
517
|
"up" => in_array($ifname, $upints)
|
|
518
|
);
|
|
519
|
foreach($ipinfo as $ip) {
|
|
520
|
$aip = explode(" ", $ip);
|
|
521
|
if($aip[0] == $ifname) {
|
|
522
|
$toput['ipaddr'] = $aip[1];
|
|
523
|
}
|
|
524
|
}
|
|
525
|
foreach($config['interfaces'] as $name => $int) {
|
|
526
|
if($int['if'] == $ifname) $friendly = $name;
|
|
527
|
}
|
|
528
|
switch($keyby) {
|
|
529
|
case "physical":
|
|
530
|
if($friendly != "") {
|
|
531
|
$toput['friendly'] = $friendly;
|
|
532
|
}
|
|
533
|
$dmesg_arr = array();
|
|
534
|
exec("/sbin/dmesg |grep $ifname | head -n1", $dmesg_arr);
|
|
535
|
preg_match_all("/<(.*?)>/i", $dmesg_arr[0], $dmesg);
|
|
536
|
$toput['dmesg'] = $dmesg[1][0];
|
|
537
|
$iflist[$ifname] = $toput;
|
|
538
|
break;
|
|
539
|
case "friendly":
|
|
540
|
if($friendly != "") {
|
|
541
|
$toput['if'] = $ifname;
|
|
542
|
$iflist[$friendly] = $toput;
|
|
543
|
}
|
|
544
|
break;
|
|
545
|
}
|
|
546
|
}
|
|
547
|
}
|
|
548
|
return $iflist;
|
|
549
|
}
|
|
550
|
|
|
551
|
/****f* util/log_error
|
|
552
|
* NAME
|
|
553
|
* log_error - Sends a string to syslog.
|
|
554
|
* INPUTS
|
|
555
|
* $error - string containing the syslog message.
|
|
556
|
* RESULT
|
|
557
|
* null
|
|
558
|
******/
|
|
559
|
function log_error($error) {
|
|
560
|
global $g;
|
|
561
|
$page = $_SERVER['SCRIPT_NAME'];
|
|
562
|
syslog(LOG_WARNING, "$page: $error");
|
|
563
|
if ($g['debug'])
|
|
564
|
syslog(LOG_WARNING, var_dump(debug_backtrace()));
|
|
565
|
return;
|
|
566
|
}
|
|
567
|
|
|
568
|
/****f* util/exec_command
|
|
569
|
* NAME
|
|
570
|
* exec_command - Execute a command and return a string of the result.
|
|
571
|
* INPUTS
|
|
572
|
* $command - String of the command to be executed.
|
|
573
|
* RESULT
|
|
574
|
* String containing the command's result.
|
|
575
|
* NOTES
|
|
576
|
* This function returns the command's stdout and stderr.
|
|
577
|
******/
|
|
578
|
function exec_command($command) {
|
|
579
|
$output = array();
|
|
580
|
exec($command . ' 2>&1 ', $output);
|
|
581
|
return(implode("\n", $output));
|
|
582
|
}
|
|
583
|
|
|
584
|
/* wrapper for exec() */
|
|
585
|
function mwexec($command, $mute = false) {
|
|
586
|
|
|
587
|
global $g;
|
|
588
|
$oarr = array();
|
|
589
|
$retval = 0;
|
|
590
|
if ($g['debug']) {
|
|
591
|
if (!$_SERVER['REMOTE_ADDR'])
|
|
592
|
echo "mwexec(): $command\n";
|
|
593
|
exec("$command 2>&1", $oarr, $retval);
|
|
594
|
} else {
|
|
595
|
exec("$command 2>&1", $oarr, $retval);
|
|
596
|
}
|
|
597
|
if(isset($config['system']['developerspew']))
|
|
598
|
$mute = false;
|
|
599
|
if(($retval <> 0) && ($mute === false)) {
|
|
600
|
$output = implode(" ", $oarr);
|
|
601
|
log_error("The command '$command' returned exit code '$retval', the output was '$output' ");
|
|
602
|
}
|
|
603
|
return $retval;
|
|
604
|
}
|
|
605
|
|
|
606
|
/* wrapper for exec() in background */
|
|
607
|
function mwexec_bg($command) {
|
|
608
|
|
|
609
|
global $g;
|
|
610
|
|
|
611
|
if ($g['debug']) {
|
|
612
|
if (!$_SERVER['REMOTE_ADDR'])
|
|
613
|
echo "mwexec(): $command\n";
|
|
614
|
}
|
|
615
|
|
|
616
|
exec("nohup $command > /dev/null 2>&1 &");
|
|
617
|
}
|
|
618
|
|
|
619
|
/* unlink a file, if it exists */
|
|
620
|
function unlink_if_exists($fn) {
|
|
621
|
$to_do = glob($fn);
|
|
622
|
if(is_array($to_do)) {
|
|
623
|
foreach($to_do as $filename)
|
|
624
|
@unlink($filename);
|
|
625
|
} else {
|
|
626
|
@unlink($fn);
|
|
627
|
}
|
|
628
|
}
|
|
629
|
/* make a global alias table (for faster lookups) */
|
|
630
|
function alias_make_table($config) {
|
|
631
|
|
|
632
|
global $aliastable;
|
|
633
|
|
|
634
|
$aliastable = array();
|
|
635
|
|
|
636
|
if (is_array($config['aliases']['alias'])) {
|
|
637
|
foreach ($config['aliases']['alias'] as $alias) {
|
|
638
|
if ($alias['name'])
|
|
639
|
$aliastable[$alias['name']] = $alias['address'];
|
|
640
|
}
|
|
641
|
}
|
|
642
|
}
|
|
643
|
/* check if an alias exists */
|
|
644
|
function is_alias($name) {
|
|
645
|
|
|
646
|
global $aliastable;
|
|
647
|
|
|
648
|
return isset($aliastable[$name]);
|
|
649
|
}
|
|
650
|
|
|
651
|
function alias_expand_value($name) {
|
|
652
|
|
|
653
|
global $aliastable, $config;
|
|
654
|
$newaddress = "";
|
|
655
|
$firstentry = true;
|
|
656
|
if($config['aliases']['alias'])
|
|
657
|
foreach($config['aliases']['alias'] as $alias) {
|
|
658
|
if($alias['name'] == $name) {
|
|
659
|
if($alias['type'] == "openvpn") {
|
|
660
|
$vpn_address_split = split(" ", $alias['address']);
|
|
661
|
foreach($vpn_address_split as $vpnsplit) {
|
|
662
|
foreach($config['openvpn']['user'] as $openvpn) {
|
|
663
|
if($openvpn['name'] == $vpnsplit) {
|
|
664
|
if($firstentry == false)
|
|
665
|
$newaddress .= " ";
|
|
666
|
$newaddress .= $openvpn['ip'];
|
|
667
|
$firstentry = false;
|
|
668
|
}
|
|
669
|
}
|
|
670
|
}
|
|
671
|
} else {
|
|
672
|
$newaddress = $alias['address'];
|
|
673
|
}
|
|
674
|
}
|
|
675
|
}
|
|
676
|
return $newaddress;
|
|
677
|
}
|
|
678
|
|
|
679
|
/* expand a host or network alias, if necessary */
|
|
680
|
function alias_expand($name) {
|
|
681
|
|
|
682
|
global $aliastable;
|
|
683
|
|
|
684
|
if (isset($aliastable[$name]))
|
|
685
|
return "\${$name}";
|
|
686
|
else if (is_ipaddr($name) || is_subnet($name))
|
|
687
|
return "{$name}";
|
|
688
|
else
|
|
689
|
return null;
|
|
690
|
}
|
|
691
|
|
|
692
|
/* expand a host alias, if necessary */
|
|
693
|
function alias_expand_host($name) {
|
|
694
|
global $aliastable;
|
|
695
|
|
|
696
|
if (isset($aliastable[$name])) {
|
|
697
|
$ip_arr = explode(" ", $aliastable[$name]);
|
|
698
|
foreach($ip_arr as $ip) {
|
|
699
|
if (!is_ipaddr($ip))
|
|
700
|
return null;
|
|
701
|
}
|
|
702
|
return $aliastable[$name];
|
|
703
|
} else if (is_ipaddr($name))
|
|
704
|
return $name;
|
|
705
|
else
|
|
706
|
return null;
|
|
707
|
}
|
|
708
|
|
|
709
|
/* expand a network alias, if necessary */
|
|
710
|
function alias_expand_net($name) {
|
|
711
|
|
|
712
|
global $aliastable;
|
|
713
|
|
|
714
|
if (isset($aliastable[$name]) && is_subnet($aliastable[$name]))
|
|
715
|
return $aliastable[$name];
|
|
716
|
else if (is_subnet($name))
|
|
717
|
return $name;
|
|
718
|
else
|
|
719
|
return null;
|
|
720
|
}
|
|
721
|
|
|
722
|
/* find out whether two subnets overlap */
|
|
723
|
function check_subnets_overlap($subnet1, $bits1, $subnet2, $bits2) {
|
|
724
|
|
|
725
|
if (!is_numeric($bits1))
|
|
726
|
$bits1 = 32;
|
|
727
|
if (!is_numeric($bits2))
|
|
728
|
$bits2 = 32;
|
|
729
|
|
|
730
|
if ($bits1 < $bits2)
|
|
731
|
$relbits = $bits1;
|
|
732
|
else
|
|
733
|
$relbits = $bits2;
|
|
734
|
|
|
735
|
$sn1 = gen_subnet_mask_long($relbits) & ip2long($subnet1);
|
|
736
|
$sn2 = gen_subnet_mask_long($relbits) & ip2long($subnet2);
|
|
737
|
|
|
738
|
if ($sn1 == $sn2)
|
|
739
|
return true;
|
|
740
|
else
|
|
741
|
return false;
|
|
742
|
}
|
|
743
|
|
|
744
|
/* compare two IP addresses */
|
|
745
|
function ipcmp($a, $b) {
|
|
746
|
if (ip2long($a) < ip2long($b))
|
|
747
|
return -1;
|
|
748
|
else if (ip2long($a) > ip2long($b))
|
|
749
|
return 1;
|
|
750
|
else
|
|
751
|
return 0;
|
|
752
|
}
|
|
753
|
|
|
754
|
/* return true if $addr is in $subnet, false if not */
|
|
755
|
function ip_in_subnet($addr,$subnet) {
|
|
756
|
list($ip, $mask) = explode('/', $subnet);
|
|
757
|
$mask = 0xffffffff << (32 - $mask);
|
|
758
|
return ((ip2long($addr) & $mask) == (ip2long($ip) & $mask));
|
|
759
|
}
|
|
760
|
|
|
761
|
/* verify (and remove) the digital signature on a file - returns 0 if OK */
|
|
762
|
function verify_digital_signature($fname) {
|
|
763
|
|
|
764
|
global $g;
|
|
765
|
|
|
766
|
return mwexec("/usr/local/sbin/gzsig verify {$g['etc_path']}/pubkey.pem < " . escapeshellarg($fname));
|
|
767
|
}
|
|
768
|
|
|
769
|
/* obtain MAC address given an IP address by looking at the ARP table */
|
|
770
|
function arp_get_mac_by_ip($ip) {
|
|
771
|
mwexec("/sbin/ping -c 1 -t 1 {$ip}", true);
|
|
772
|
$arpoutput = "";
|
|
773
|
exec("/usr/sbin/arp -n {$ip}", $arpoutput);
|
|
774
|
|
|
775
|
if ($arpoutput[0]) {
|
|
776
|
$arpi = explode(" ", $arpoutput[0]);
|
|
777
|
$macaddr = $arpi[3];
|
|
778
|
if (is_macaddr($macaddr))
|
|
779
|
return $macaddr;
|
|
780
|
else
|
|
781
|
return false;
|
|
782
|
}
|
|
783
|
|
|
784
|
return false;
|
|
785
|
}
|
|
786
|
|
|
787
|
/* return a fieldname that is safe for xml usage */
|
|
788
|
function xml_safe_fieldname($fieldname) {
|
|
789
|
$replace = array('/', '-', ' ', '!', '@', '#', '$', '%', '^', '&', '*', '(', ')',
|
|
790
|
'_', '+', '=', '{', '}', '[', ']', '|', '/', '<', '>', '?',
|
|
791
|
':', ',', '.', '\'', '\\'
|
|
792
|
);
|
|
793
|
return strtolower(str_replace($replace, "", $fieldname));
|
|
794
|
}
|
|
795
|
|
|
796
|
function mac_format($clientmac) {
|
|
797
|
$mac =explode(":", $clientmac);
|
|
798
|
|
|
799
|
global $config;
|
|
800
|
|
|
801
|
$mac_format = $config['captiveportal']['radmac_format'] ? $config['captiveportal']['radmac_format'] : false;
|
|
802
|
|
|
803
|
switch($mac_format) {
|
|
804
|
|
|
805
|
case 'singledash':
|
|
806
|
return "$mac[0]$mac[1]$mac[2]-$mac[3]$mac[4]$mac[5]";
|
|
807
|
|
|
808
|
case 'ietf':
|
|
809
|
return "$mac[0]-$mac[1]-$mac[2]-$mac[3]-$mac[4]-$mac[5]";
|
|
810
|
|
|
811
|
case 'cisco':
|
|
812
|
return "$mac[0]$mac[1].$mac[2]$mac[3].$mac[4]$mac[5]";
|
|
813
|
|
|
814
|
case 'unformatted':
|
|
815
|
return "$mac[0]$mac[1]$mac[2]$mac[3]$mac[4]$mac[5]";
|
|
816
|
|
|
817
|
default:
|
|
818
|
return $clientmac;
|
|
819
|
}
|
|
820
|
}
|
|
821
|
|
|
822
|
function resolve_retry($hostname, $retries = 5) {
|
|
823
|
|
|
824
|
if (is_ipaddr($hostname))
|
|
825
|
return $hostname;
|
|
826
|
|
|
827
|
for ($i = 0; $i < $retries; $i++) {
|
|
828
|
$ip = gethostbyname($hostname);
|
|
829
|
|
|
830
|
if ($ip && $ip != $hostname) {
|
|
831
|
/* success */
|
|
832
|
return $ip;
|
|
833
|
}
|
|
834
|
|
|
835
|
sleep(1);
|
|
836
|
}
|
|
837
|
|
|
838
|
return false;
|
|
839
|
}
|
|
840
|
|
|
841
|
function format_bytes($bytes) {
|
|
842
|
if ($bytes >= 1073741824) {
|
|
843
|
return sprintf("%.2f GB", $bytes/1073741824);
|
|
844
|
} else if ($bytes >= 1048576) {
|
|
845
|
return sprintf("%.2f MB", $bytes/1048576);
|
|
846
|
} else if ($bytes >= 1024) {
|
|
847
|
return sprintf("%.0f KB", $bytes/1024);
|
|
848
|
} else {
|
|
849
|
return sprintf("%d bytes", $bytes);
|
|
850
|
}
|
|
851
|
}
|
|
852
|
|
|
853
|
function update_filter_reload_status($text) {
|
|
854
|
global $g;
|
|
855
|
|
|
856
|
file_put_contents("{$g['varrun_path']}/filter_reload_status", $text);
|
|
857
|
}
|
|
858
|
|
|
859
|
/****f* util/return_dir_as_array
|
|
860
|
* NAME
|
|
861
|
* return_dir_as_array - Return a directory's contents as an array.
|
|
862
|
* INPUTS
|
|
863
|
* $dir - string containing the path to the desired directory.
|
|
864
|
* RESULT
|
|
865
|
* $dir_array - array containing the directory's contents. This array will be empty if the path specified is invalid.
|
|
866
|
******/
|
|
867
|
function return_dir_as_array($dir) {
|
|
868
|
$dir_array = array();
|
|
869
|
if (is_dir($dir)) {
|
|
870
|
if ($dh = opendir($dir)) {
|
|
871
|
while (($file = readdir($dh)) !== false) {
|
|
872
|
$canadd = 0;
|
|
873
|
if($file == ".") $canadd = 1;
|
|
874
|
if($file == "..") $canadd = 1;
|
|
875
|
if($canadd == 0)
|
|
876
|
array_push($dir_array, $file);
|
|
877
|
}
|
|
878
|
closedir($dh);
|
|
879
|
}
|
|
880
|
}
|
|
881
|
return $dir_array;
|
|
882
|
}
|
|
883
|
|
|
884
|
function run_plugins($directory) {
|
|
885
|
global $config, $g;
|
|
886
|
|
|
887
|
/* process packager manager custom rules */
|
|
888
|
$files = return_dir_as_array($directory);
|
|
889
|
if (is_array($files)) {
|
|
890
|
foreach ($files as $file) {
|
|
891
|
if (stristr($file, ".sh") == true)
|
|
892
|
mwexec($directory . $file . " start");
|
|
893
|
else if (!is_dir($directory . "/" . $file) && stristr($file,".inc")) {
|
|
894
|
if ($g['booting'] == true)
|
|
895
|
echo "\t{$file}... ";
|
|
896
|
require_once($directory . "/" . $file);
|
|
897
|
}
|
|
898
|
}
|
|
899
|
}
|
|
900
|
}
|
|
901
|
|
|
902
|
/*
|
|
903
|
* safe_mkdir($path, $mode = 0755)
|
|
904
|
* create directory if it doesn't already exist and isn't a file!
|
|
905
|
*/
|
|
906
|
function safe_mkdir($path, $mode=0755) {
|
|
907
|
global $g;
|
|
908
|
|
|
909
|
if (!is_file($path) && !is_dir($path)) {
|
|
910
|
return @mkdir($path, $mode);
|
|
911
|
} else {
|
|
912
|
return false;
|
|
913
|
}
|
|
914
|
}
|
|
915
|
|
|
916
|
/*
|
|
917
|
* make_dirs($path, $mode = 0755)
|
|
918
|
* create directory tree recursively (mkdir -p)
|
|
919
|
*/
|
|
920
|
function make_dirs($path, $mode = 0755) {
|
|
921
|
$base = '';
|
|
922
|
foreach (explode('/', $path) as $dir) {
|
|
923
|
$base .= "/$dir";
|
|
924
|
if (!is_dir($base)) {
|
|
925
|
if (!@mkdir($base, $mode))
|
|
926
|
return false;
|
|
927
|
}
|
|
928
|
}
|
|
929
|
return true;
|
|
930
|
}
|
|
931
|
|
|
932
|
/*
|
|
933
|
* get_memory()
|
|
934
|
* returns an array listing the amount of
|
|
935
|
* memory installed in the hardware
|
|
936
|
* [0]real and [1]available
|
|
937
|
*/
|
|
938
|
function get_memory() {
|
|
939
|
if(file_exists("/var/log/dmesg.boot")) {
|
|
940
|
$mem = `cat /var/log/dmesg.boot | grep memory`;
|
|
941
|
$matches = "";
|
|
942
|
if (preg_match_all("/real memory = .* \((.*) MB/", $mem, $matches))
|
|
943
|
$real = $matches[1];
|
|
944
|
if (preg_match_all("/avail memory = .* \((.*) MB/", $mem, $matches))
|
|
945
|
$avail = $matches[1];
|
|
946
|
return array($real[0],$avail[0]);
|
|
947
|
} else {
|
|
948
|
$mem = `dmesg -a`;
|
|
949
|
$matches = "";
|
|
950
|
if (preg_match_all("/real memory = .* \((.*) MB/", $mem, $matches))
|
|
951
|
$real = $matches[1];
|
|
952
|
if (preg_match_all("/avail memory = .* \((.*) MB/", $mem, $matches))
|
|
953
|
$avail = $matches[1];
|
|
954
|
return array($real[0],$avail[0]);
|
|
955
|
}
|
|
956
|
}
|
|
957
|
|
|
958
|
function mute_kernel_msgs() {
|
|
959
|
return;
|
|
960
|
exec("/sbin/conscontrol mute on");
|
|
961
|
}
|
|
962
|
|
|
963
|
function unmute_kernel_msgs() {
|
|
964
|
exec("/sbin/conscontrol mute off");
|
|
965
|
}
|
|
966
|
|
|
967
|
function start_devd() {
|
|
968
|
exec("/sbin/devd");
|
|
969
|
sleep(1);
|
|
970
|
if(file_exists("/tmp/rc.linkup"))
|
|
971
|
unlink("/tmp/rc.linkup");
|
|
972
|
}
|
|
973
|
|
|
974
|
function is_interface_mismatch() {
|
|
975
|
global $config, $g;
|
|
976
|
|
|
977
|
/* XXX: Should we process only enabled interfaces?! */
|
|
978
|
$do_assign = false;
|
|
979
|
$i = 0;
|
|
980
|
foreach ($config['interfaces'] as $ifname => $ifcfg) {
|
|
981
|
if (preg_match("/^enc|^tun|^ppp|^pptp|^pppoe|^ovpn|^gif|^gre|^lagg|^bridge|vlan/i", $ifcfg['if'])) {
|
|
982
|
$i++;
|
|
983
|
}
|
|
984
|
else if (does_interface_exist($ifcfg['if']) == false) {
|
|
985
|
file_notice("interfaces", "{$ifcfg['if']} is not present anymore on the system, you need to reassign interfaces or take appropriate actions.", "System", "", 2);
|
|
986
|
$do_assign = true;
|
|
987
|
} else
|
|
988
|
$i++;
|
|
989
|
}
|
|
990
|
|
|
991
|
if ($g['minimum_nic_count'] > $i) {
|
|
992
|
file_notice("interfaces", "Minimum allowed interfaces is set to {$g['minimum_nic_count']} but system has only {$i} interfaces!", "", "System", 2);
|
|
993
|
$do_assign = true;
|
|
994
|
} else if (file_exists("{$g['tmp_path']}/assign_complete"))
|
|
995
|
$do_assign = false;
|
|
996
|
|
|
997
|
return $do_assign;
|
|
998
|
}
|
|
999
|
|
|
1000
|
/* sync carp entries to other firewalls */
|
|
1001
|
function carp_sync_client() {
|
|
1002
|
global $g;
|
|
1003
|
update_filter_reload_status("Syncing CARP data");
|
|
1004
|
touch($g['tmp_path'] . "/filter_sync");
|
|
1005
|
}
|
|
1006
|
|
|
1007
|
/****f* util/isAjax
|
|
1008
|
* NAME
|
|
1009
|
* isAjax - reports if the request is driven from prototype
|
|
1010
|
* INPUTS
|
|
1011
|
* none
|
|
1012
|
* RESULT
|
|
1013
|
* true/false
|
|
1014
|
******/
|
|
1015
|
function isAjax() {
|
|
1016
|
return isset ($_SERVER['HTTP_X_REQUESTED_WITH']) && $_SERVER['HTTP_X_REQUESTED_WITH'] == 'XMLHttpRequest';
|
|
1017
|
}
|
|
1018
|
|
|
1019
|
|
|
1020
|
?>
|