2093 lines
54 KiB
PHP
2093 lines
54 KiB
PHP
<?php
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/*
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util.inc
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part of the pfSense project (https://www.pfsense.org)
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originally 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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/*
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pfSense_BUILDER_BINARIES: /bin/ps /bin/kill /usr/bin/killall /sbin/ifconfig /usr/bin/netstat
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pfSense_BUILDER_BINARIES: /usr/bin/awk /sbin/dmesg /sbin/ping /usr/local/sbin/gzsig /usr/sbin/arp
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pfSense_BUILDER_BINARIES: /sbin/conscontrol /sbin/devd /bin/ps
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pfSense_MODULE: utils
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*/
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/* kill a process by pid file */
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function killbypid($pidfile) {
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return sigkillbypid($pidfile, "TERM");
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}
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function isvalidpid($pidfile) {
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$output = "";
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if (file_exists($pidfile)) {
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exec("/bin/pgrep -nF {$pidfile}", $output, $retval);
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return (intval($retval) == 0);
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}
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return false;
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}
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function is_process_running($process) {
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$output = "";
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exec("/bin/pgrep -anx " . escapeshellarg($process), $output, $retval);
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return (intval($retval) == 0);
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}
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function isvalidproc($proc) {
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return is_process_running($proc);
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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, $sig) {
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if (file_exists($pidfile))
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return mwexec("/bin/pkill " . escapeshellarg("-{$sig}") . " -F {$pidfile}", true);
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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 " . escapeshellarg("-{$sig}") . " " . escapeshellarg($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(sprintf(gettext("WARNING: Could not mark subsystem: %s dirty"), $subsystem));
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}
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function clear_subsystem_dirty($subsystem = "") {
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global $g;
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@unlink("{$g['varrun_path']}/{$subsystem}.dirty");
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}
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function config_lock() {
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return;
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}
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function config_unlock() {
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return;
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}
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/* lock configuration file */
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function lock($lock, $op = LOCK_SH) {
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global $g, $cfglckkeyconsumers;
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if (!$lock)
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die(gettext("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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@chmod("{$g['tmp_path']}/{$lock}.lock", 0666);
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}
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$cfglckkeyconsumers++;
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if ($fp = fopen("{$g['tmp_path']}/{$lock}.lock", "w")) {
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if (flock($fp, $op))
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return $fp;
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else
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fclose($fp);
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}
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}
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function try_lock($lock, $timeout = 5) {
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global $g, $cfglckkeyconsumers;
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if (!$lock)
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die(gettext("WARNING: You must give a name as parameter to try_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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@chmod("{$g['tmp_path']}/{$lock}.lock", 0666);
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}
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$cfglckkeyconsumers++;
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if ($fp = fopen("{$g['tmp_path']}/{$lock}.lock", "w")) {
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$trycounter = 0;
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while(!flock($fp, LOCK_EX | LOCK_NB)) {
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if ($trycounter >= $timeout) {
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fclose($fp);
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return NULL;
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}
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sleep(1);
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$trycounter++;
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}
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return $fp;
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}
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return NULL;
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}
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/* unlock configuration file */
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function unlock($cfglckkey = 0) {
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global $g, $cfglckkeyconsumers;
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flock($cfglckkey, LOCK_UN);
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fclose($cfglckkey);
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return;
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}
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/* unlock forcefully configuration file */
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function unlock_force($lock) {
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global $g;
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@unlink("{$g['tmp_path']}/{$lock}.lock");
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}
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function send_event($cmd) {
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global $g;
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if(!isset($g['event_address']))
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$g['event_address'] = "unix:///var/run/check_reload_status";
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$try = 0;
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while ($try < 3) {
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$fd = @fsockopen($g['event_address']);
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if ($fd) {
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fwrite($fd, $cmd);
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$resp = fread($fd, 4096);
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if ($resp != "OK\n")
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log_error("send_event: sent {$cmd} got {$resp}");
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fclose($fd);
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$try = 3;
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} else if (!is_process_running("check_reload_status"))
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mwexec_bg("/usr/bin/nice -n20 /usr/local/sbin/check_reload_status");
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$try++;
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}
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}
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function send_multiple_events($cmds) {
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global $g;
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if(!isset($g['event_address']))
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$g['event_address'] = "unix:///var/run/check_reload_status";
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if (!is_array($cmds))
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return;
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while ($try < 3) {
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$fd = @fsockopen($g['event_address']);
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if ($fd) {
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foreach ($cmds as $cmd) {
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fwrite($fd, $cmd);
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$resp = fread($fd, 4096);
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if ($resp != "OK\n")
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log_error("send_event: sent {$cmd} got {$resp}");
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}
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fclose($fd);
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$try = 3;
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} else if (!is_process_running("check_reload_status"))
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mwexec_bg("/usr/bin/nice -n20 /usr/local/sbin/check_reload_status");
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$try++;
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}
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}
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function refcount_init($reference) {
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$shmid = @shmop_open($reference, "c", 0644, 10);
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@shmop_write($shmid, str_pad("0", 10, "\x0", STR_PAD_RIGHT), 0);
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@shmop_close($shmid);
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}
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function refcount_reference($reference) {
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/* Take out a lock across the shared memory read, increment, write sequence to make it atomic. */
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$shm_lck = lock("shm{$reference}", LOCK_EX);
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try {
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/* NOTE: A warning is generated when shared memory does not exist */
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$shmid = @shmop_open($reference, "w", 0, 0);
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if (!$shmid) {
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refcount_init($reference);
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$shmid = @shmop_open($reference, "w", 0, 0);
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if (!$shmid) {
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log_error(gettext("Could not open shared memory {$reference}"));
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unlock($shm_lck);
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return;
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}
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}
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$shm_data = @shmop_read($shmid, 0, 10);
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$shm_data = intval($shm_data) + 1;
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@shmop_write($shmid, str_pad($shm_data, 10, "\x0", STR_PAD_RIGHT), 0);
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@shmop_close($shmid);
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unlock($shm_lck);
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} catch (Exception $e) {
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log_error($e->getMessage());
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unlock($shm_lck);
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}
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return $shm_data;
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}
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function refcount_unreference($reference) {
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/* Take out a lock across the shared memory read, decrement, write sequence to make it atomic. */
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$shm_lck = lock("shm{$reference}", LOCK_EX);
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try {
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$shmid = @shmop_open($reference, "w", 0, 0);
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if (!$shmid) {
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refcount_init($reference);
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log_error(gettext("Could not open shared memory {$reference}"));
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unlock($shm_lck);
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return;
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}
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$shm_data = @shmop_read($shmid, 0, 10);
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$shm_data = intval($shm_data) - 1;
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if ($shm_data < 0) {
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//debug_backtrace();
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log_error(sprintf(gettext("Reference %s is going negative, not doing unreference."), $reference));
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} else
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@shmop_write($shmid, str_pad($shm_data, 10, "\x0", STR_PAD_RIGHT), 0);
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@shmop_close($shmid);
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unlock($shm_lck);
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} catch (Exception $e) {
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log_error($e->getMessage());
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unlock($shm_lck);
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}
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return $shm_data;
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}
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function refcount_read($reference) {
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/* This function just reads the current value of the refcount for information. */
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/* There is no need for locking. */
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$shmid = @shmop_open($reference, "a", 0, 0);
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if (!$shmid) {
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log_error(gettext("Could not open shared memory for read {$reference}"));
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return -1;
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}
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$shm_data = @shmop_read($shmid, 0, 10);
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@shmop_close($shmid);
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return $shm_data;
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}
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function is_module_loaded($module_name) {
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$module_name = str_replace(".ko", "", $module_name);
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$running = 0;
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$_gb = exec("/sbin/kldstat -qn {$module_name} 2>&1", $_gb, $running);
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if (intval($running) == 0)
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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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/* validate non-negative numeric string, or equivalent numeric variable */
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function is_numericint($arg) {
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return (((is_int($arg) && $arg >= 0) || (is_string($arg) && strlen($arg) > 0 && ctype_digit($arg))) ? true : 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($bits));
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}
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/* return the subnet address given a host address and a subnet bit count */
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function gen_subnetv6($ipaddr, $bits) {
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if (!is_ipaddrv6($ipaddr) || !is_numeric($bits))
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return "";
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$address = Net_IPv6::getNetmask($ipaddr, $bits);
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$address = Net_IPv6::compress($address);
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return $address;
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}
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/* return the highest (broadcast) address in the subnet given a host address and a subnet bit count */
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function gen_subnet_max($ipaddr, $bits) {
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if (!is_ipaddr($ipaddr) || !is_numeric($bits))
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return "";
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return long2ip32(ip2long($ipaddr) | ~gen_subnet_mask_long($bits));
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}
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/* Generate end number for a given ipv6 subnet mask */
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function gen_subnetv6_max($ipaddr, $bits) {
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if(!is_ipaddrv6($ipaddr))
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return false;
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$mask = Net_IPv6::getNetmask('FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF',$bits);
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$inet_ip = (binary)inet_pton($ipaddr);
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$inet_mask = (binary)inet_pton($mask);
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$inet_end = $inet_ip | ~$inet_mask;
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return (inet_ntop($inet_end));
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}
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/* returns a subnet mask (long given a bit count) */
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function gen_subnet_mask_long($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($bits));
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}
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/* Convert long int to IP address, truncating to 32-bits. */
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function long2ip32($ip) {
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return long2ip($ip & 0xFFFFFFFF);
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}
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/* Convert IP address to long int, truncated to 32-bits to avoid sign extension on 64-bit platforms. */
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function ip2long32($ip) {
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return ( ip2long($ip) & 0xFFFFFFFF );
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}
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/* Convert IP address to unsigned long int. */
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function ip2ulong($ip) {
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return sprintf("%u", ip2long32($ip));
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}
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/* Find out how many IPs are contained within a given IP range
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* e.g. 192.168.0.0 to 192.168.0.255 returns 256
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*/
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function ip_range_size_v4($startip, $endip) {
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if (is_ipaddrv4($startip) && is_ipaddrv4($endip)) {
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// Operate as unsigned long because otherwise it wouldn't work
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// when crossing over from 127.255.255.255 / 128.0.0.0 barrier
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return abs(ip2ulong($startip) - ip2ulong($endip)) + 1;
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}
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return -1;
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}
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/* Find the smallest possible subnet mask which can contain a given number of IPs
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* e.g. 512 IPs can fit in a /23, but 513 IPs need a /22
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*/
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function find_smallest_cidr_v4($number) {
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$smallest = 1;
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for ($b=32; $b > 0; $b--) {
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$smallest = ($number <= pow(2,$b)) ? $b : $smallest;
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}
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return (32-$smallest);
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}
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/* Return the previous IP address before the given address */
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function ip_before($ip) {
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return long2ip32(ip2long($ip)-1);
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}
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/* Return the next IP address after the given address */
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function ip_after($ip) {
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return long2ip32(ip2long($ip)+1);
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}
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/* Return true if the first IP is 'before' the second */
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function ip_less_than($ip1, $ip2) {
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// Compare as unsigned long because otherwise it wouldn't work when
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// crossing over from 127.255.255.255 / 128.0.0.0 barrier
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return ip2ulong($ip1) < ip2ulong($ip2);
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}
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/* Return true if the first IP is 'after' the second */
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function ip_greater_than($ip1, $ip2) {
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// Compare as unsigned long because otherwise it wouldn't work
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// when crossing over from 127.255.255.255 / 128.0.0.0 barrier
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return ip2ulong($ip1) > ip2ulong($ip2);
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}
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/* Convert a range of IPv4 addresses to an array of individual addresses. */
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/* Note: IPv6 ranges are not yet supported here. */
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function ip_range_to_address_array($startip, $endip, $max_size = 5000) {
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if (!is_ipaddrv4($startip) || !is_ipaddrv4($endip)) {
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return false;
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}
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if (ip_greater_than($startip, $endip)) {
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// Swap start and end so we can process sensibly.
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$temp = $startip;
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$startip = $endip;
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$endip = $temp;
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}
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if (ip_range_size_v4($startip, $endip) > $max_size)
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return false;
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// Container for IP addresses within this range.
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$rangeaddresses = array();
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$end_int = ip2ulong($endip);
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for ($ip_int = ip2ulong($startip); $ip_int <= $end_int; $ip_int++) {
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$rangeaddresses[] = long2ip($ip_int);
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}
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return $rangeaddresses;
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}
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/* Convert a range of IPv4 addresses to an array of subnets which can contain the range. */
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|
/* Note: IPv6 ranges are not yet supported here. */
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function ip_range_to_subnet_array($startip, $endip) {
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if (!is_ipaddrv4($startip) || !is_ipaddrv4($endip)) {
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return array();
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}
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if (ip_greater_than($startip, $endip)) {
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// Swap start and end so we can process sensibly.
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$temp = $startip;
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$startip = $endip;
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$endip = $temp;
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}
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// Container for subnets within this range.
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$rangesubnets = array();
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// Figure out what the smallest subnet is that holds the number of IPs in the given range.
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$cidr = find_smallest_cidr_v4(ip_range_size_v4($startip, $endip));
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// Loop here to reduce subnet size and retest as needed. We need to make sure
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// that the target subnet is wholly contained between $startip and $endip.
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for ($cidr; $cidr <= 32; $cidr++) {
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// Find the network and broadcast addresses for the subnet being tested.
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$targetsub_min = gen_subnet($startip, $cidr);
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$targetsub_max = gen_subnet_max($startip, $cidr);
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// Check best case where the range is exactly one subnet.
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if (($targetsub_min == $startip) && ($targetsub_max == $endip)) {
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// Hooray, the range is exactly this subnet!
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return array("{$startip}/{$cidr}");
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}
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|
|
// These remaining scenarios will find a subnet that uses the largest
|
|
// chunk possible of the range being tested, and leave the rest to be
|
|
// tested recursively after the loop.
|
|
|
|
// Check if the subnet begins with $startip and ends before $endip
|
|
if (($targetsub_min == $startip) && ip_less_than($targetsub_max, $endip)) {
|
|
break;
|
|
}
|
|
|
|
// Check if the subnet ends at $endip and starts after $startip
|
|
if (ip_greater_than($targetsub_min, $startip) && ($targetsub_max == $endip)) {
|
|
break;
|
|
}
|
|
|
|
// Check if the subnet is between $startip and $endip
|
|
if (ip_greater_than($targetsub_min, $startip) && ip_less_than($targetsub_max, $endip)) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Some logic that will recursively search from $startip to the first IP before the start of the subnet we just found.
|
|
// NOTE: This may never be hit, the way the above algo turned out, but is left for completeness.
|
|
if ($startip != $targetsub_min) {
|
|
$rangesubnets = array_merge($rangesubnets, ip_range_to_subnet_array($startip, ip_before($targetsub_min)));
|
|
}
|
|
|
|
// Add in the subnet we found before, to preserve ordering
|
|
$rangesubnets[] = "{$targetsub_min}/{$cidr}";
|
|
|
|
// And some more logic that will search after the subnet we found to fill in to the end of the range.
|
|
if ($endip != $targetsub_max) {
|
|
$rangesubnets = array_merge($rangesubnets, ip_range_to_subnet_array(ip_after($targetsub_max), $endip));
|
|
}
|
|
return $rangesubnets;
|
|
}
|
|
|
|
/* returns true if $range is a valid pair of IPv4 or IPv6 addresses separated by a "-"
|
|
false - if not a valid pair
|
|
true (numeric 4 or 6) - if valid, gives type of addresses */
|
|
function is_iprange($range) {
|
|
if (substr_count($range, '-') != 1) {
|
|
return false;
|
|
}
|
|
list($ip1, $ip2) = explode ('-', $range);
|
|
if (is_ipaddrv4($ip1) && is_ipaddrv4($ip2))
|
|
return 4;
|
|
if (is_ipaddrv6($ip1) && is_ipaddrv6($ip2))
|
|
return 6;
|
|
return false;
|
|
}
|
|
|
|
/* returns true if $ipaddr is a valid dotted IPv4 address or a IPv6 */
|
|
function is_ipaddr($ipaddr) {
|
|
if(is_ipaddrv4($ipaddr)) {
|
|
return true;
|
|
}
|
|
if(is_ipaddrv6($ipaddr)) {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/* returns true if $ipaddr is a valid IPv6 address */
|
|
function is_ipaddrv6($ipaddr) {
|
|
if (!is_string($ipaddr) || empty($ipaddr))
|
|
return false;
|
|
if (strstr($ipaddr, "%") && is_linklocal($ipaddr)) {
|
|
$tmpip = explode("%", $ipaddr);
|
|
$ipaddr = $tmpip[0];
|
|
}
|
|
return Net_IPv6::checkIPv6($ipaddr);
|
|
}
|
|
|
|
/* returns true if $ipaddr is a valid dotted IPv4 address */
|
|
function is_ipaddrv4($ipaddr) {
|
|
if (!is_string($ipaddr) || empty($ipaddr))
|
|
return false;
|
|
|
|
$ip_long = ip2long($ipaddr);
|
|
$ip_reverse = long2ip32($ip_long);
|
|
|
|
if ($ipaddr == $ip_reverse)
|
|
return true;
|
|
else
|
|
return false;
|
|
}
|
|
|
|
/* returns true if $ipaddr is a valid linklocal address */
|
|
function is_linklocal($ipaddr) {
|
|
return (strtolower(substr($ipaddr, 0, 5)) == "fe80:");
|
|
}
|
|
|
|
/* returns scope of a linklocal address */
|
|
function get_ll_scope($addr) {
|
|
if (!is_linklocal($addr) || !strstr($addr, "%"))
|
|
return "";
|
|
list ($ll, $scope) = explode("%", $addr);
|
|
return $scope;
|
|
}
|
|
|
|
/* returns true if $ipaddr is a valid literal IPv6 address */
|
|
function is_literalipaddrv6($ipaddr) {
|
|
if(preg_match("/\[([0-9a-f:]+)\]/i", $ipaddr, $match))
|
|
$ipaddr = $match[1];
|
|
else
|
|
return false;
|
|
|
|
return is_ipaddrv6($ipaddr);
|
|
}
|
|
|
|
function is_ipaddrwithport($ipport) {
|
|
$parts = explode(":", $ipport);
|
|
$port = array_pop($parts);
|
|
if (count($parts) == 1) {
|
|
return is_ipaddrv4($parts[0]) && is_port($port);
|
|
} elseif (count($parts) > 1) {
|
|
return is_literalipaddrv6(implode(":", $parts)) && is_port($port);
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
function is_hostnamewithport($hostport) {
|
|
$parts = explode(":", $hostport);
|
|
$port = array_pop($parts);
|
|
if (count($parts) == 1) {
|
|
return is_hostname($parts[0]) && is_port($port);
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/* returns true if $ipaddr is a valid dotted IPv4 address or an alias thereof */
|
|
function is_ipaddroralias($ipaddr) {
|
|
global $config;
|
|
|
|
if (is_alias($ipaddr)) {
|
|
if (is_array($config['aliases']['alias'])) {
|
|
foreach ($config['aliases']['alias'] as $alias) {
|
|
if ($alias['name'] == $ipaddr && !preg_match("/port/i", $alias['type']))
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
} else
|
|
return is_ipaddr($ipaddr);
|
|
|
|
}
|
|
|
|
/* returns true if $subnet is a valid IPv4 or IPv6 subnet in CIDR format
|
|
false - if not a valid subnet
|
|
true (numeric 4 or 6) - if valid, gives type of subnet */
|
|
function is_subnet($subnet) {
|
|
if (is_string($subnet) && preg_match('/^(?:([0-9.]{7,15})|([0-9a-f:]{2,39}))\/(\d{1,3})$/i', $subnet, $parts)) {
|
|
if (is_ipaddrv4($parts[1]) && $parts[3] <= 32)
|
|
return 4;
|
|
if (is_ipaddrv6($parts[2]) && $parts[3] <= 128)
|
|
return 6;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/* same as is_subnet() but accepts IPv4 only */
|
|
function is_subnetv4($subnet) {
|
|
return (is_subnet($subnet) == 4);
|
|
}
|
|
|
|
/* same as is_subnet() but accepts IPv6 only */
|
|
function is_subnetv6($subnet) {
|
|
return (is_subnet($subnet) == 6);
|
|
}
|
|
|
|
/* returns true if $subnet is a valid subnet in CIDR format or an alias thereof */
|
|
function is_subnetoralias($subnet) {
|
|
global $aliastable;
|
|
|
|
if (isset($aliastable[$subnet]) && is_subnet($aliastable[$subnet]))
|
|
return true;
|
|
else
|
|
return is_subnet($subnet);
|
|
}
|
|
|
|
/* returns true if $hostname is a valid hostname */
|
|
function is_hostname($hostname) {
|
|
if (!is_string($hostname))
|
|
return false;
|
|
|
|
if (preg_match('/^(?:(?:[a-z0-9_]|[a-z0-9_][a-z0-9_\-]*[a-z0-9_])\.)*(?:[a-z0-9_]|[a-z0-9_][a-z0-9_\-]*[a-z0-9_])$/i', $hostname))
|
|
return true;
|
|
else
|
|
return false;
|
|
}
|
|
|
|
/* returns true if $domain is a valid domain name */
|
|
function is_domain($domain) {
|
|
if (!is_string($domain))
|
|
return false;
|
|
|
|
if (preg_match('/^(?:(?:[a-z_0-9]|[a-z_0-9][a-z_0-9\-]*[a-z_0-9])\.)*(?:[a-z_0-9]|[a-z_0-9][a-z_0-9\-]*[a-z_0-9\.])$/i', $domain))
|
|
return true;
|
|
else
|
|
return false;
|
|
}
|
|
|
|
/* returns true if $macaddr is a valid MAC address */
|
|
function is_macaddr($macaddr, $partial=false) {
|
|
$repeat = ($partial) ? '1,5' : '5';
|
|
return preg_match('/^[0-9A-F]{2}(?:[:][0-9A-F]{2}){'.$repeat.'}$/i', $macaddr) == 1 ? true : false;
|
|
}
|
|
|
|
/* returns true if $name is a valid name for an alias
|
|
returns NULL if a reserved word is used
|
|
returns FALSE for bad chars in the name - this allows calling code to determine what the problem was.
|
|
aliases cannot be:
|
|
bad chars: anything except a-z 0-9 and underscore
|
|
bad names: empty string, pure numeric, pure underscore
|
|
reserved words: pre-defined service/protocol/port names which should not be ambiguous, and the words "port" and "pass" */
|
|
|
|
function is_validaliasname($name) {
|
|
/* Array of reserved words */
|
|
$reserved = array("port", "pass");
|
|
|
|
if (!is_string($name) || strlen($name) >= 32 || preg_match('/(^_*$|^\d*$|[^a-z0-9_])/i', $name))
|
|
return false;
|
|
if (in_array($name, $reserved, true) || getservbyname($name, "tcp") || getservbyname($name, "udp") || getprotobyname($name))
|
|
return; /* return NULL */
|
|
return true;
|
|
}
|
|
|
|
/* returns true if $port is a valid TCP/UDP port */
|
|
function is_port($port) {
|
|
if (getservbyname($port, "tcp") || getservbyname($port, "udp"))
|
|
return true;
|
|
if (!ctype_digit($port))
|
|
return false;
|
|
else if ((intval($port) < 1) || (intval($port) > 65535))
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
/* returns true if $portrange is a valid TCP/UDP portrange ("<port>:<port>") */
|
|
function is_portrange($portrange) {
|
|
$ports = explode(":", $portrange);
|
|
|
|
return (count($ports) == 2 && is_port($ports[0]) && is_port($ports[1]));
|
|
}
|
|
|
|
/* returns true if $port is a valid port number or an alias thereof */
|
|
function is_portoralias($port) {
|
|
global $config;
|
|
|
|
if (is_alias($port)) {
|
|
if (is_array($config['aliases']['alias'])) {
|
|
foreach ($config['aliases']['alias'] as $alias) {
|
|
if ($alias['name'] == $port && preg_match("/port/i", $alias['type']))
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
} else
|
|
return is_port($port);
|
|
}
|
|
|
|
/* create ranges of sequential port numbers (200:215) and remove duplicates */
|
|
function group_ports($ports) {
|
|
if (!is_array($ports) || empty($ports))
|
|
return;
|
|
|
|
$uniq = array();
|
|
foreach ($ports as $port) {
|
|
if (is_portrange($port)) {
|
|
list($begin, $end) = explode(":", $port);
|
|
if ($begin > $end) {
|
|
$aux = $begin;
|
|
$begin = $end;
|
|
$end = $aux;
|
|
}
|
|
for ($i = $begin; $i <= $end; $i++)
|
|
if (!in_array($i, $uniq))
|
|
$uniq[] = $i;
|
|
} else if (is_port($port)) {
|
|
if (!in_array($port, $uniq))
|
|
$uniq[] = $port;
|
|
}
|
|
}
|
|
sort($uniq, SORT_NUMERIC);
|
|
|
|
$result = array();
|
|
foreach ($uniq as $idx => $port) {
|
|
if ($idx == 0) {
|
|
$result[] = $port;
|
|
continue;
|
|
}
|
|
|
|
$last = end($result);
|
|
if (is_portrange($last))
|
|
list($begin, $end) = explode(":", $last);
|
|
else
|
|
$begin = $end = $last;
|
|
|
|
if ($port == ($end+1)) {
|
|
$end++;
|
|
$result[count($result)-1] = "{$begin}:{$end}";
|
|
} else {
|
|
$result[] = $port;
|
|
}
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
/* returns true if $val is a valid shaper bandwidth value */
|
|
function is_valid_shaperbw($val) {
|
|
return (preg_match("/^(\d+(?:\.\d+)?)([MKG]?b|%)$/", $val));
|
|
}
|
|
|
|
/* returns true if $test is in the range between $start and $end */
|
|
function is_inrange_v4($test, $start, $end) {
|
|
if ( (ip2ulong($test) <= ip2ulong($end)) && (ip2ulong($test) >= ip2ulong($start)) )
|
|
return true;
|
|
else
|
|
return false;
|
|
}
|
|
|
|
/* returns true if $test is in the range between $start and $end */
|
|
function is_inrange_v6($test, $start, $end) {
|
|
if ( (inet_pton($test) <= inet_pton($end)) && (inet_pton($test) >= inet_pton($start)) )
|
|
return true;
|
|
else
|
|
return false;
|
|
}
|
|
|
|
/* returns true if $test is in the range between $start and $end */
|
|
function is_inrange($test, $start, $end) {
|
|
return is_ipaddrv6($test) ? is_inrange_v6($test, $start, $end) : is_inrange_v4($test, $start, $end);
|
|
}
|
|
|
|
/* XXX: return the configured carp interface list */
|
|
function get_configured_carp_interface_list($carpinterface = "", $family = "inet") {
|
|
global $config;
|
|
|
|
$iflist = array();
|
|
|
|
if(is_array($config['virtualip']['vip'])) {
|
|
$viparr = &$config['virtualip']['vip'];
|
|
foreach ($viparr as $vip) {
|
|
switch ($vip['mode']) {
|
|
case "carp":
|
|
if (!empty($carpinterface)) {
|
|
if ($carpinterface == "{$vip['interface']}_vip{$vip['vhid']}") {
|
|
if ($family == "inet" && is_ipaddrv4($vip['subnet']))
|
|
return $vip['subnet'];
|
|
else if ($family == "inet6" && is_ipaddrv6($vip['subnet']))
|
|
return $vip['subnet'];
|
|
}
|
|
} else {
|
|
$iflist["{$vip['interface']}_vip{$vip['vhid']}"] = $vip['subnet'];
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
return $iflist;
|
|
}
|
|
|
|
/* return the configured IP aliases list */
|
|
function get_configured_ip_aliases_list($returnfullentry = false) {
|
|
global $config;
|
|
|
|
$alias_list=array();
|
|
|
|
if(is_array($config['virtualip']['vip'])) {
|
|
$viparr = &$config['virtualip']['vip'];
|
|
foreach ($viparr as $vip) {
|
|
if ($vip['mode']=="ipalias") {
|
|
if ($returnfullentry)
|
|
$alias_list[$vip['subnet']] = $vip;
|
|
else
|
|
$alias_list[$vip['subnet']] = $vip['interface'];
|
|
}
|
|
}
|
|
}
|
|
|
|
return $alias_list;
|
|
}
|
|
|
|
/* return all configured aliases list (IP, carp, proxyarp and other) */
|
|
function get_configured_vips_list() {
|
|
global $config;
|
|
|
|
$alias_list=array();
|
|
|
|
if(is_array($config['virtualip']['vip'])) {
|
|
$viparr = &$config['virtualip']['vip'];
|
|
foreach ($viparr as $vip) {
|
|
if ($vip['mode'] == "carp")
|
|
$alias_list[] = array("ipaddr" => $vip['subnet'], "if" => "{$vip['interface']}_vip{$vip['vhid']}");
|
|
else
|
|
$alias_list[] = array("ipaddr" => $vip['subnet'], "if" => $vip['interface']);
|
|
}
|
|
}
|
|
|
|
return $alias_list;
|
|
}
|
|
|
|
/* comparison function for sorting by the order in which interfaces are normally created */
|
|
function compare_interface_friendly_names($a, $b) {
|
|
if ($a == $b)
|
|
return 0;
|
|
else if ($a == 'wan')
|
|
return -1;
|
|
else if ($b == 'wan')
|
|
return 1;
|
|
else if ($a == 'lan')
|
|
return -1;
|
|
else if ($b == 'lan')
|
|
return 1;
|
|
|
|
return strnatcmp($a, $b);
|
|
}
|
|
|
|
/* return the configured interfaces list. */
|
|
function get_configured_interface_list($only_opt = false, $withdisabled = false) {
|
|
global $config;
|
|
|
|
$iflist = array();
|
|
|
|
/* if list */
|
|
foreach($config['interfaces'] as $if => $ifdetail) {
|
|
if ($only_opt && ($if == "wan" || $if == "lan"))
|
|
continue;
|
|
if (isset($ifdetail['enable']) || $withdisabled == true)
|
|
$iflist[$if] = $if;
|
|
}
|
|
|
|
return $iflist;
|
|
}
|
|
|
|
/* return the configured interfaces list. */
|
|
function get_configured_interface_list_by_realif($only_opt = false, $withdisabled = false) {
|
|
global $config;
|
|
|
|
$iflist = array();
|
|
|
|
/* if list */
|
|
foreach($config['interfaces'] as $if => $ifdetail) {
|
|
if ($only_opt && ($if == "wan" || $if == "lan"))
|
|
continue;
|
|
if (isset($ifdetail['enable']) || $withdisabled == true) {
|
|
$tmpif = get_real_interface($if);
|
|
if (!empty($tmpif))
|
|
$iflist[$tmpif] = $if;
|
|
}
|
|
}
|
|
|
|
return $iflist;
|
|
}
|
|
|
|
/* return the configured interfaces list with their description. */
|
|
function get_configured_interface_with_descr($only_opt = false, $withdisabled = false) {
|
|
global $config;
|
|
|
|
$iflist = array();
|
|
|
|
/* if list */
|
|
foreach($config['interfaces'] as $if => $ifdetail) {
|
|
if ($only_opt && ($if == "wan" || $if == "lan"))
|
|
continue;
|
|
if (isset($ifdetail['enable']) || $withdisabled == true) {
|
|
if(empty($ifdetail['descr']))
|
|
$iflist[$if] = strtoupper($if);
|
|
else
|
|
$iflist[$if] = strtoupper($ifdetail['descr']);
|
|
}
|
|
}
|
|
|
|
return $iflist;
|
|
}
|
|
|
|
/*
|
|
* get_configured_ip_addresses() - Return a list of all configured
|
|
* interfaces IP Addresses
|
|
*
|
|
*/
|
|
function get_configured_ip_addresses() {
|
|
global $config;
|
|
|
|
if (!function_exists('get_interface_ip'))
|
|
require_once("interfaces.inc");
|
|
$ip_array = array();
|
|
$interfaces = get_configured_interface_list();
|
|
if (is_array($interfaces)) {
|
|
foreach($interfaces as $int) {
|
|
$ipaddr = get_interface_ip($int);
|
|
$ip_array[$int] = $ipaddr;
|
|
}
|
|
}
|
|
$interfaces = get_configured_carp_interface_list();
|
|
if (is_array($interfaces))
|
|
foreach($interfaces as $int => $ipaddr)
|
|
$ip_array[$int] = $ipaddr;
|
|
|
|
/* pppoe server */
|
|
if (is_array($config['pppoes']) && is_array($config['pppoes']['pppoe'])) {
|
|
foreach($config['pppoes']['pppoe'] as $pppoe) {
|
|
if ($pppoe['mode'] == "server") {
|
|
if(is_ipaddr($pppoe['localip'])) {
|
|
$int = "pppoes". $pppoe['pppoeid'];
|
|
$ip_array[$int] = $pppoe['localip'];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return $ip_array;
|
|
}
|
|
|
|
/*
|
|
* get_configured_ipv6_addresses() - Return a list of all configured
|
|
* interfaces IPv6 Addresses
|
|
*
|
|
*/
|
|
function get_configured_ipv6_addresses() {
|
|
require_once("interfaces.inc");
|
|
$ipv6_array = array();
|
|
$interfaces = get_configured_interface_list();
|
|
if(is_array($interfaces)) {
|
|
foreach($interfaces as $int) {
|
|
$ipaddrv6 = get_interface_ipv6($int);
|
|
$ipv6_array[$int] = $ipaddrv6;
|
|
}
|
|
}
|
|
$interfaces = get_configured_carp_interface_list();
|
|
if(is_array($interfaces))
|
|
foreach($interfaces as $int => $ipaddrv6)
|
|
$ipv6_array[$int] = $ipaddrv6;
|
|
return $ipv6_array;
|
|
}
|
|
|
|
/*
|
|
* get_interface_list() - Return a list of all physical interfaces
|
|
* along with MAC and status.
|
|
*
|
|
* $mode = "active" - use ifconfig -lu
|
|
* "media" - use ifconfig to check physical connection
|
|
* status (much slower)
|
|
*/
|
|
function get_interface_list($mode = "active", $keyby = "physical", $vfaces = "") {
|
|
global $config;
|
|
$upints = array();
|
|
/* get a list of virtual interface types */
|
|
if(!$vfaces) {
|
|
$vfaces = array (
|
|
'bridge',
|
|
'ppp',
|
|
'pppoe',
|
|
'pptp',
|
|
'l2tp',
|
|
'sl',
|
|
'gif',
|
|
'gre',
|
|
'faith',
|
|
'lo',
|
|
'ng',
|
|
'_vlan',
|
|
'_wlan',
|
|
'pflog',
|
|
'plip',
|
|
'pfsync',
|
|
'enc',
|
|
'tun',
|
|
'carp',
|
|
'lagg',
|
|
'vip',
|
|
'ipfw'
|
|
);
|
|
}
|
|
switch($mode) {
|
|
case "active":
|
|
$upints = pfSense_interface_listget(IFF_UP);
|
|
break;
|
|
case "media":
|
|
$intlist = pfSense_interface_listget();
|
|
$ifconfig = "";
|
|
exec("/sbin/ifconfig -a", $ifconfig);
|
|
$regexp = '/(' . implode('|', $intlist) . '):\s/';
|
|
$ifstatus = preg_grep('/status:/', $ifconfig);
|
|
foreach($ifstatus as $status) {
|
|
$int = array_shift($intlist);
|
|
if(stristr($status, "active")) $upints[] = $int;
|
|
}
|
|
break;
|
|
default:
|
|
$upints = pfSense_interface_listget();
|
|
break;
|
|
}
|
|
/* build interface list with netstat */
|
|
$linkinfo = "";
|
|
exec("/usr/bin/netstat -inW -f link | awk '{ print $1, $4 }'", $linkinfo);
|
|
array_shift($linkinfo);
|
|
/* build ip address list with netstat */
|
|
$ipinfo = "";
|
|
exec("/usr/bin/netstat -inW -f inet | awk '{ print $1, $4 }'", $ipinfo);
|
|
array_shift($ipinfo);
|
|
foreach($linkinfo as $link) {
|
|
$friendly = "";
|
|
$alink = explode(" ", $link);
|
|
$ifname = rtrim(trim($alink[0]), '*');
|
|
/* trim out all numbers before checking for vfaces */
|
|
if (!in_array(array_shift(preg_split('/\d/', $ifname)), $vfaces) &&
|
|
!stristr($ifname, "_vlan") && !stristr($ifname, "_wlan")) {
|
|
$toput = array(
|
|
"mac" => trim($alink[1]),
|
|
"up" => in_array($ifname, $upints)
|
|
);
|
|
foreach($ipinfo as $ip) {
|
|
$aip = explode(" ", $ip);
|
|
if($aip[0] == $ifname) {
|
|
$toput['ipaddr'] = $aip[1];
|
|
}
|
|
}
|
|
if (is_array($config['interfaces'])) {
|
|
foreach($config['interfaces'] as $name => $int)
|
|
if($int['if'] == $ifname) $friendly = $name;
|
|
}
|
|
switch($keyby) {
|
|
case "physical":
|
|
if($friendly != "") {
|
|
$toput['friendly'] = $friendly;
|
|
}
|
|
$dmesg_arr = array();
|
|
exec("/sbin/dmesg |grep $ifname | head -n1", $dmesg_arr);
|
|
preg_match_all("/<(.*?)>/i", $dmesg_arr[0], $dmesg);
|
|
$toput['dmesg'] = $dmesg[1][0];
|
|
$iflist[$ifname] = $toput;
|
|
break;
|
|
case "ppp":
|
|
|
|
case "friendly":
|
|
if($friendly != "") {
|
|
$toput['if'] = $ifname;
|
|
$iflist[$friendly] = $toput;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return $iflist;
|
|
}
|
|
|
|
/****f* util/log_error
|
|
* NAME
|
|
* log_error - Sends a string to syslog.
|
|
* INPUTS
|
|
* $error - string containing the syslog message.
|
|
* RESULT
|
|
* null
|
|
******/
|
|
function log_error($error) {
|
|
global $g;
|
|
$page = $_SERVER['SCRIPT_NAME'];
|
|
if (empty($page)) {
|
|
$files = get_included_files();
|
|
$page = basename($files[0]);
|
|
}
|
|
syslog(LOG_ERR, "$page: $error");
|
|
if ($g['debug'])
|
|
syslog(LOG_WARNING, var_dump(debug_backtrace()));
|
|
return;
|
|
}
|
|
|
|
/****f* util/log_auth
|
|
* NAME
|
|
* log_auth - Sends a string to syslog as LOG_AUTH facility
|
|
* INPUTS
|
|
* $error - string containing the syslog message.
|
|
* RESULT
|
|
* null
|
|
******/
|
|
function log_auth($error) {
|
|
global $g;
|
|
$page = $_SERVER['SCRIPT_NAME'];
|
|
syslog(LOG_AUTH, "$page: $error");
|
|
if ($g['debug'])
|
|
syslog(LOG_WARNING, var_dump(debug_backtrace()));
|
|
return;
|
|
}
|
|
|
|
/****f* util/exec_command
|
|
* NAME
|
|
* exec_command - Execute a command and return a string of the result.
|
|
* INPUTS
|
|
* $command - String of the command to be executed.
|
|
* RESULT
|
|
* String containing the command's result.
|
|
* NOTES
|
|
* This function returns the command's stdout and stderr.
|
|
******/
|
|
function exec_command($command) {
|
|
$output = array();
|
|
exec($command . ' 2>&1', $output);
|
|
return(implode("\n", $output));
|
|
}
|
|
|
|
/* wrapper for exec() */
|
|
function mwexec($command, $mute = false, $clearsigmask = false) {
|
|
global $g;
|
|
|
|
if ($g['debug']) {
|
|
if (!$_SERVER['REMOTE_ADDR'])
|
|
echo "mwexec(): $command\n";
|
|
}
|
|
$oarr = array();
|
|
$retval = 0;
|
|
|
|
if ($clearsigmask) {
|
|
$oldset = array();
|
|
pcntl_sigprocmask(SIG_SETMASK, array(), $oldset);
|
|
}
|
|
$garbage = exec("$command 2>&1", $oarr, $retval);
|
|
if ($clearsigmask) {
|
|
pcntl_sigprocmask(SIG_SETMASK, $oldset);
|
|
}
|
|
|
|
if(isset($config['system']['developerspew']))
|
|
$mute = false;
|
|
if(($retval <> 0) && ($mute === false)) {
|
|
$output = implode(" ", $oarr);
|
|
log_error(sprintf(gettext("The command '%1\$s' returned exit code '%2\$d', the output was '%3\$s' "), $command, $retval, $output));
|
|
unset($output);
|
|
}
|
|
unset($oarr);
|
|
return $retval;
|
|
}
|
|
|
|
/* wrapper for exec() in background */
|
|
function mwexec_bg($command, $clearsigmask = false) {
|
|
global $g;
|
|
|
|
if ($g['debug']) {
|
|
if (!$_SERVER['REMOTE_ADDR'])
|
|
echo "mwexec(): $command\n";
|
|
}
|
|
|
|
if ($clearsigmask) {
|
|
$oldset = array();
|
|
pcntl_sigprocmask(SIG_SETMASK, array(), $oldset);
|
|
}
|
|
$_gb = exec("/usr/bin/nohup $command > /dev/null 2>&1 &");
|
|
if ($clearsigmask) {
|
|
pcntl_sigprocmask(SIG_SETMASK, $oldset);
|
|
}
|
|
unset($_gb);
|
|
}
|
|
|
|
/* unlink a file, if it exists */
|
|
function unlink_if_exists($fn) {
|
|
$to_do = glob($fn);
|
|
if(is_array($to_do)) {
|
|
foreach($to_do as $filename)
|
|
@unlink($filename);
|
|
} else {
|
|
@unlink($fn);
|
|
}
|
|
}
|
|
/* make a global alias table (for faster lookups) */
|
|
function alias_make_table($config) {
|
|
global $aliastable;
|
|
|
|
$aliastable = array();
|
|
|
|
if (is_array($config['aliases']['alias'])) {
|
|
foreach ($config['aliases']['alias'] as $alias) {
|
|
if ($alias['name'])
|
|
$aliastable[$alias['name']] = $alias['address'];
|
|
}
|
|
}
|
|
}
|
|
|
|
/* check if an alias exists */
|
|
function is_alias($name) {
|
|
global $aliastable;
|
|
|
|
return isset($aliastable[$name]);
|
|
}
|
|
|
|
function alias_get_type($name) {
|
|
global $config;
|
|
|
|
if (is_array($config['aliases']['alias'])) {
|
|
foreach ($config['aliases']['alias'] as $alias) {
|
|
if ($name == $alias['name'])
|
|
return $alias['type'];
|
|
}
|
|
}
|
|
|
|
return "";
|
|
}
|
|
|
|
/* expand a host or network alias, if necessary */
|
|
function alias_expand($name) {
|
|
global $aliastable;
|
|
|
|
if (isset($aliastable[$name]))
|
|
return "\${$name}";
|
|
else if (is_ipaddr($name) || is_subnet($name) || is_port($name) || is_portrange($name))
|
|
return "{$name}";
|
|
else
|
|
return null;
|
|
}
|
|
|
|
function alias_expand_urltable($name) {
|
|
global $config;
|
|
$urltable_prefix = "/var/db/aliastables/";
|
|
$urltable_filename = $urltable_prefix . $name . ".txt";
|
|
|
|
if (is_array($config['aliases']['alias'])) {
|
|
foreach ($config['aliases']['alias'] as $alias) {
|
|
if (preg_match("/urltable/i", $alias['type']) && ($alias['name'] == $name)) {
|
|
if (is_URL($alias["url"]) && file_exists($urltable_filename) && filesize($urltable_filename))
|
|
return $urltable_filename;
|
|
else if (process_alias_urltable($name, $alias["url"], 0, true))
|
|
return $urltable_filename;
|
|
}
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
function subnet_size($subnet) {
|
|
if (is_subnetv4($subnet)) {
|
|
list ($ip, $bits) = explode("/", $subnet);
|
|
return round(exp(log(2) * (32 - $bits)));
|
|
}
|
|
else if (is_subnetv6($subnet)) {
|
|
list ($ip, $bits) = explode("/", $subnet);
|
|
return round(exp(log(2) * (128 - $bits)));
|
|
}
|
|
else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
function subnet_expand($subnet) {
|
|
if (is_subnetv4($subnet)) {
|
|
return subnetv4_expand($subnet);
|
|
} else if (is_subnetv6($subnet)) {
|
|
return subnetv6_expand($subnet);
|
|
} else {
|
|
return $subnet;
|
|
}
|
|
}
|
|
|
|
function subnetv4_expand($subnet) {
|
|
$result = array();
|
|
list ($ip, $bits) = explode("/", $subnet);
|
|
$net = ip2long($ip);
|
|
$mask = (0xffffffff << (32 - $bits));
|
|
$net &= $mask;
|
|
$size = round(exp(log(2) * (32 - $bits)));
|
|
for ($i = 0; $i < $size; $i += 1) {
|
|
$result[] = long2ip($net | $i);
|
|
}
|
|
return $result;
|
|
}
|
|
|
|
/* find out whether two subnets overlap */
|
|
function check_subnets_overlap($subnet1, $bits1, $subnet2, $bits2) {
|
|
|
|
if (!is_numeric($bits1))
|
|
$bits1 = 32;
|
|
if (!is_numeric($bits2))
|
|
$bits2 = 32;
|
|
|
|
if ($bits1 < $bits2)
|
|
$relbits = $bits1;
|
|
else
|
|
$relbits = $bits2;
|
|
|
|
$sn1 = gen_subnet_mask_long($relbits) & ip2long($subnet1);
|
|
$sn2 = gen_subnet_mask_long($relbits) & ip2long($subnet2);
|
|
|
|
return ($sn1 == $sn2);
|
|
}
|
|
|
|
/* find out whether two IPv6 subnets overlap */
|
|
function check_subnetsv6_overlap($subnet1, $bits1, $subnet2, $bits2) {
|
|
$sub1_min = gen_subnetv6($subnet1, $bits1);
|
|
$sub1_max = gen_subnetv6_max($subnet1, $bits1);
|
|
$sub2_min = gen_subnetv6($subnet2, $bits2);
|
|
$sub2_max = gen_subnetv6_max($subnet2, $bits2);
|
|
|
|
return (is_inrange_v6($sub1_min, $sub2_min, $sub2_max) || is_inrange_v6($sub1_max, $sub2_min, $sub2_max) || is_inrange_v6($sub2_min, $sub1_min, $sub1_max));
|
|
}
|
|
|
|
/* compare two IP addresses */
|
|
function ipcmp($a, $b) {
|
|
if (ip_less_than($a, $b))
|
|
return -1;
|
|
else if (ip_greater_than($a, $b))
|
|
return 1;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
/* return true if $addr is in $subnet, false if not */
|
|
function ip_in_subnet($addr,$subnet) {
|
|
if(is_ipaddrv6($addr)) {
|
|
return (Net_IPv6::isInNetmask($addr, $subnet));
|
|
} else { /* XXX: Maybe check for IPv4 */
|
|
list($ip, $mask) = explode('/', $subnet);
|
|
$mask = (0xffffffff << (32 - $mask)) & 0xffffffff;
|
|
return ((ip2long($addr) & $mask) == (ip2long($ip) & $mask));
|
|
}
|
|
}
|
|
|
|
/* verify (and remove) the digital signature on a file - returns 0 if OK */
|
|
function verify_digital_signature($fname) {
|
|
global $g;
|
|
|
|
if(!file_exists("/usr/local/sbin/gzsig"))
|
|
return 4;
|
|
|
|
return mwexec("/usr/local/sbin/gzsig verify {$g['etc_path']}/pubkey.pem < " . escapeshellarg($fname));
|
|
}
|
|
|
|
/* obtain MAC address given an IP address by looking at the ARP table */
|
|
function arp_get_mac_by_ip($ip) {
|
|
mwexec("/sbin/ping -c 1 -t 1 " . escapeshellarg($ip), true);
|
|
$arpoutput = "";
|
|
exec("/usr/sbin/arp -n " . escapeshellarg($ip), $arpoutput);
|
|
|
|
if ($arpoutput[0]) {
|
|
$arpi = explode(" ", $arpoutput[0]);
|
|
$macaddr = $arpi[3];
|
|
if (is_macaddr($macaddr))
|
|
return $macaddr;
|
|
else
|
|
return false;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/* return a fieldname that is safe for xml usage */
|
|
function xml_safe_fieldname($fieldname) {
|
|
$replace = array('/', '-', ' ', '!', '@', '#', '$', '%', '^', '&', '*', '(', ')',
|
|
'_', '+', '=', '{', '}', '[', ']', '|', '/', '<', '>', '?',
|
|
':', ',', '.', '\'', '\\'
|
|
);
|
|
return strtolower(str_replace($replace, "", $fieldname));
|
|
}
|
|
|
|
function mac_format($clientmac) {
|
|
global $config, $cpzone;
|
|
|
|
$mac = explode(":", $clientmac);
|
|
$mac_format = $cpzone ? $config['captiveportal'][$cpzone]['radmac_format'] : false;
|
|
|
|
switch($mac_format) {
|
|
case 'singledash':
|
|
return "$mac[0]$mac[1]$mac[2]-$mac[3]$mac[4]$mac[5]";
|
|
|
|
case 'ietf':
|
|
return "$mac[0]-$mac[1]-$mac[2]-$mac[3]-$mac[4]-$mac[5]";
|
|
|
|
case 'cisco':
|
|
return "$mac[0]$mac[1].$mac[2]$mac[3].$mac[4]$mac[5]";
|
|
|
|
case 'unformatted':
|
|
return "$mac[0]$mac[1]$mac[2]$mac[3]$mac[4]$mac[5]";
|
|
|
|
default:
|
|
return $clientmac;
|
|
}
|
|
}
|
|
|
|
function resolve_retry($hostname, $retries = 5) {
|
|
|
|
if (is_ipaddr($hostname))
|
|
return $hostname;
|
|
|
|
for ($i = 0; $i < $retries; $i++) {
|
|
// FIXME: gethostbyname does not work for AAAA hostnames, boo, hiss
|
|
$ip = gethostbyname($hostname);
|
|
|
|
if ($ip && $ip != $hostname) {
|
|
/* success */
|
|
return $ip;
|
|
}
|
|
|
|
sleep(1);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
function format_bytes($bytes) {
|
|
if ($bytes >= 1073741824) {
|
|
return sprintf("%.2f GB", $bytes/1073741824);
|
|
} else if ($bytes >= 1048576) {
|
|
return sprintf("%.2f MB", $bytes/1048576);
|
|
} else if ($bytes >= 1024) {
|
|
return sprintf("%.0f KB", $bytes/1024);
|
|
} else {
|
|
return sprintf("%d bytes", $bytes);
|
|
}
|
|
}
|
|
|
|
function update_filter_reload_status($text) {
|
|
global $g;
|
|
|
|
file_put_contents("{$g['varrun_path']}/filter_reload_status", $text);
|
|
}
|
|
|
|
/****** util/return_dir_as_array
|
|
* NAME
|
|
* return_dir_as_array - Return a directory's contents as an array.
|
|
* INPUTS
|
|
* $dir - string containing the path to the desired directory.
|
|
* $filter_regex - string containing a regular expression to filter file names. Default empty.
|
|
* RESULT
|
|
* $dir_array - array containing the directory's contents. This array will be empty if the path specified is invalid.
|
|
******/
|
|
function return_dir_as_array($dir, $filter_regex = '') {
|
|
$dir_array = array();
|
|
if (is_dir($dir)) {
|
|
if ($dh = opendir($dir)) {
|
|
while (($file = readdir($dh)) !== false) {
|
|
if (($file == ".") || ($file == ".."))
|
|
continue;
|
|
|
|
if (empty($filter_regex) || preg_match($filter_regex, $file))
|
|
array_push($dir_array, $file);
|
|
}
|
|
closedir($dh);
|
|
}
|
|
}
|
|
return $dir_array;
|
|
}
|
|
|
|
function run_plugins($directory) {
|
|
global $config, $g;
|
|
|
|
/* process packager manager custom rules */
|
|
$files = return_dir_as_array($directory);
|
|
if (is_array($files)) {
|
|
foreach ($files as $file) {
|
|
if (stristr($file, ".sh") == true)
|
|
mwexec($directory . $file . " start");
|
|
else if (!is_dir($directory . "/" . $file) && stristr($file,".inc"))
|
|
require_once($directory . "/" . $file);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* safe_mkdir($path, $mode = 0755)
|
|
* create directory if it doesn't already exist and isn't a file!
|
|
*/
|
|
function safe_mkdir($path, $mode=0755) {
|
|
global $g;
|
|
|
|
if (!is_file($path) && !is_dir($path)) {
|
|
return @mkdir($path, $mode, true);
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* make_dirs($path, $mode = 0755)
|
|
* create directory tree recursively (mkdir -p)
|
|
*/
|
|
function make_dirs($path, $mode = 0755) {
|
|
$base = '';
|
|
foreach (explode('/', $path) as $dir) {
|
|
$base .= "/$dir";
|
|
if (!is_dir($base)) {
|
|
if (!@mkdir($base, $mode))
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
* get_sysctl($names)
|
|
* Get values of sysctl OID's listed in $names (accepts an array or a single
|
|
* name) and return an array of key/value pairs set for those that exist
|
|
*/
|
|
function get_sysctl($names) {
|
|
if (empty($names))
|
|
return array();
|
|
|
|
if (is_array($names)) {
|
|
$name_list = array();
|
|
foreach ($names as $name) {
|
|
$name_list[] = escapeshellarg($name);
|
|
}
|
|
} else
|
|
$name_list = array(escapeshellarg($names));
|
|
|
|
exec("/sbin/sysctl -i " . implode(" ", $name_list), $output);
|
|
$values = array();
|
|
foreach ($output as $line) {
|
|
$line = explode(": ", $line, 2);
|
|
if (count($line) == 2)
|
|
$values[$line[0]] = $line[1];
|
|
}
|
|
|
|
return $values;
|
|
}
|
|
|
|
/*
|
|
* get_single_sysctl($name)
|
|
* Wrapper for get_sysctl() to simplify read of a single sysctl value
|
|
* return the value for sysctl $name or empty string if it doesn't exist
|
|
*/
|
|
function get_single_sysctl($name) {
|
|
if (empty($name))
|
|
return "";
|
|
|
|
$value = get_sysctl($name);
|
|
if (empty($value) || !isset($value[$name]))
|
|
return "";
|
|
|
|
return $value[$name];
|
|
}
|
|
|
|
/*
|
|
* set_sysctl($value_list)
|
|
* Set sysctl OID's listed as key/value pairs and return
|
|
* an array with keys set for those that succeeded
|
|
*/
|
|
function set_sysctl($values) {
|
|
if (empty($values))
|
|
return array();
|
|
|
|
$value_list = array();
|
|
foreach ($values as $key => $value) {
|
|
$value_list[] = escapeshellarg($key) . "=" . escapeshellarg($value);
|
|
}
|
|
|
|
exec("/sbin/sysctl -i " . implode(" ", $value_list), $output, $success);
|
|
|
|
/* Retry individually if failed (one or more read-only) */
|
|
if ($success <> 0 && count($value_list) > 1) {
|
|
foreach ($value_list as $value) {
|
|
exec("/sbin/sysctl -i " . $value, $output);
|
|
}
|
|
}
|
|
|
|
$ret = array();
|
|
foreach ($output as $line) {
|
|
$line = explode(": ", $line, 2);
|
|
if (count($line) == 2)
|
|
$ret[$line[0]] = true;
|
|
}
|
|
|
|
return $ret;
|
|
}
|
|
|
|
/*
|
|
* set_single_sysctl($name, $value)
|
|
* Wrapper to set_sysctl() to make it simple to set only one sysctl
|
|
* returns boolean meaning if it suceed
|
|
*/
|
|
function set_single_sysctl($name, $value) {
|
|
if (empty($name))
|
|
return false;
|
|
|
|
$result = set_sysctl(array($name => $value));
|
|
|
|
if (!isset($result[$name]) || $result[$name] != $value)
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
* get_memory()
|
|
* returns an array listing the amount of
|
|
* memory installed in the hardware
|
|
* [0] net memory available for the OS (FreeBSD) after some is taken by BIOS, video or whatever - e.g. 235 MBytes
|
|
* [1] real (actual) memory of the system, should be the size of the RAM card/s - e.g. 256 MBytes
|
|
*/
|
|
function get_memory() {
|
|
$physmem = get_single_sysctl("hw.physmem");
|
|
$realmem = get_single_sysctl("hw.realmem");
|
|
/* convert from bytes to megabytes */
|
|
return array(($physmem/1048576),($realmem/1048576));
|
|
}
|
|
|
|
function mute_kernel_msgs() {
|
|
global $config;
|
|
// Do not mute serial console. The kernel gets very very cranky
|
|
// and will start dishing you cannot control tty errors.
|
|
switch (trim(file_get_contents("/etc/platform"))) {
|
|
case "nanobsd":
|
|
case "jail":
|
|
return;
|
|
}
|
|
if($config['system']['enableserial'])
|
|
return;
|
|
exec("/sbin/conscontrol mute on");
|
|
}
|
|
|
|
function unmute_kernel_msgs() {
|
|
global $config;
|
|
// Do not mute serial console. The kernel gets very very cranky
|
|
// and will start dishing you cannot control tty errors.
|
|
switch (trim(file_get_contents("/etc/platform"))) {
|
|
case "nanobsd":
|
|
case "jail":
|
|
return;
|
|
}
|
|
exec("/sbin/conscontrol mute off");
|
|
}
|
|
|
|
function start_devd() {
|
|
global $g;
|
|
|
|
if ($g['platform'] == 'jail')
|
|
return;
|
|
exec("/sbin/devd");
|
|
sleep(1);
|
|
}
|
|
|
|
function is_interface_vlan_mismatch() {
|
|
global $config, $g;
|
|
|
|
if (is_array($config['vlans']['vlan'])) {
|
|
foreach ($config['vlans']['vlan'] as $vlan) {
|
|
if (does_interface_exist($vlan['if']) == false)
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
function is_interface_mismatch() {
|
|
global $config, $g;
|
|
|
|
$do_assign = false;
|
|
$i = 0;
|
|
$missing_interfaces = array();
|
|
if (is_array($config['interfaces'])) {
|
|
foreach ($config['interfaces'] as $ifname => $ifcfg) {
|
|
if (preg_match("/^enc|^cua|^tun|^tap|^l2tp|^pptp|^ppp|^ovpn|^gif|^gre|^lagg|^bridge|vlan|_wlan/i", $ifcfg['if'])) {
|
|
// Do not check these interfaces.
|
|
$i++;
|
|
continue;
|
|
}
|
|
else if (does_interface_exist($ifcfg['if']) == false) {
|
|
$missing_interfaces[] = $ifcfg['if'];
|
|
$do_assign = true;
|
|
} else
|
|
$i++;
|
|
}
|
|
}
|
|
|
|
if (file_exists("{$g['tmp_path']}/assign_complete"))
|
|
$do_assign = false;
|
|
|
|
if (!empty($missing_interfaces) && $do_assign)
|
|
file_put_contents("{$g['tmp_path']}/missing_interfaces", implode(' ', $missing_interfaces));
|
|
else
|
|
@unlink("{$g['tmp_path']}/missing_interfaces");
|
|
|
|
return $do_assign;
|
|
}
|
|
|
|
/* sync carp entries to other firewalls */
|
|
function carp_sync_client() {
|
|
global $g;
|
|
send_event("filter sync");
|
|
}
|
|
|
|
/****f* util/isAjax
|
|
* NAME
|
|
* isAjax - reports if the request is driven from prototype
|
|
* INPUTS
|
|
* none
|
|
* RESULT
|
|
* true/false
|
|
******/
|
|
function isAjax() {
|
|
return isset ($_SERVER['HTTP_X_REQUESTED_WITH']) && $_SERVER['HTTP_X_REQUESTED_WITH'] == 'XMLHttpRequest';
|
|
}
|
|
|
|
/****f* util/timeout
|
|
* NAME
|
|
* timeout - console input with timeout countdown. Note: erases 2 char of screen for timer. Leave space.
|
|
* INPUTS
|
|
* optional, seconds to wait before timeout. Default 9 seconds.
|
|
* RESULT
|
|
* returns 1 char of user input or null if no input.
|
|
******/
|
|
function timeout($timer = 9) {
|
|
while(!isset($key)) {
|
|
if ($timer >= 9) { echo chr(8) . chr(8) . ($timer==9 ? chr(32) : null) . "{$timer}"; }
|
|
else { echo chr(8). "{$timer}"; }
|
|
`/bin/stty -icanon min 0 time 25`;
|
|
$key = trim(`KEY=\`dd count=1 2>/dev/null\`; echo \$KEY`);
|
|
`/bin/stty icanon`;
|
|
if ($key == '')
|
|
unset($key);
|
|
$timer--;
|
|
if ($timer == 0)
|
|
break;
|
|
}
|
|
return $key;
|
|
}
|
|
|
|
/****f* util/msort
|
|
* NAME
|
|
* msort - sort array
|
|
* INPUTS
|
|
* $array to be sorted, field to sort by, direction of sort
|
|
* RESULT
|
|
* returns newly sorted array
|
|
******/
|
|
function msort($array, $id="id", $sort_ascending=true) {
|
|
$temp_array = array();
|
|
while(count($array)>0) {
|
|
$lowest_id = 0;
|
|
$index=0;
|
|
foreach ($array as $item) {
|
|
if (isset($item[$id])) {
|
|
if ($array[$lowest_id][$id]) {
|
|
if (strtolower($item[$id]) < strtolower($array[$lowest_id][$id])) {
|
|
$lowest_id = $index;
|
|
}
|
|
}
|
|
}
|
|
$index++;
|
|
}
|
|
$temp_array[] = $array[$lowest_id];
|
|
$array = array_merge(array_slice($array, 0,$lowest_id), array_slice($array, $lowest_id+1));
|
|
}
|
|
if ($sort_ascending) {
|
|
return $temp_array;
|
|
} else {
|
|
return array_reverse($temp_array);
|
|
}
|
|
}
|
|
|
|
/****f* util/is_URL
|
|
* NAME
|
|
* is_URL
|
|
* INPUTS
|
|
* string to check
|
|
* RESULT
|
|
* Returns true if item is a URL
|
|
******/
|
|
function is_URL($url) {
|
|
$match = preg_match("'\b(([\w-]+://?|www[.])[^\s()<>]+(?:\([\w\d]+\)|([^[:punct:]\s]|/)))'", $url);
|
|
if($match)
|
|
return true;
|
|
return false;
|
|
}
|
|
|
|
function is_file_included($file = "") {
|
|
$files = get_included_files();
|
|
if (in_array($file, $files))
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
/*
|
|
* Replace a value on a deep associative array using regex
|
|
*/
|
|
function array_replace_values_recursive($data, $match, $replace) {
|
|
if (empty($data))
|
|
return $data;
|
|
|
|
if (is_string($data))
|
|
$data = preg_replace("/{$match}/", $replace, $data);
|
|
else if (is_array($data))
|
|
foreach ($data as $k => $v)
|
|
$data[$k] = array_replace_values_recursive($v, $match, $replace);
|
|
|
|
return $data;
|
|
}
|
|
|
|
/*
|
|
This function was borrowed from a comment on PHP.net at the following URL:
|
|
http://www.php.net/manual/en/function.array-merge-recursive.php#73843
|
|
*/
|
|
function array_merge_recursive_unique($array0, $array1) {
|
|
|
|
$arrays = func_get_args();
|
|
$remains = $arrays;
|
|
|
|
// We walk through each arrays and put value in the results (without
|
|
// considering previous value).
|
|
$result = array();
|
|
|
|
// loop available array
|
|
foreach($arrays as $array) {
|
|
|
|
// The first remaining array is $array. We are processing it. So
|
|
// we remove it from remaing arrays.
|
|
array_shift($remains);
|
|
|
|
// We don't care non array param, like array_merge since PHP 5.0.
|
|
if(is_array($array)) {
|
|
// Loop values
|
|
foreach($array as $key => $value) {
|
|
if(is_array($value)) {
|
|
// we gather all remaining arrays that have such key available
|
|
$args = array();
|
|
foreach($remains as $remain) {
|
|
if(array_key_exists($key, $remain)) {
|
|
array_push($args, $remain[$key]);
|
|
}
|
|
}
|
|
|
|
if(count($args) > 2) {
|
|
// put the recursion
|
|
$result[$key] = call_user_func_array(__FUNCTION__, $args);
|
|
} else {
|
|
foreach($value as $vkey => $vval) {
|
|
$result[$key][$vkey] = $vval;
|
|
}
|
|
}
|
|
} else {
|
|
// simply put the value
|
|
$result[$key] = $value;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return $result;
|
|
}
|
|
|
|
|
|
/*
|
|
* converts a string like "a,b,c,d"
|
|
* into an array like array("a" => "b", "c" => "d")
|
|
*/
|
|
function explode_assoc($delimiter, $string) {
|
|
$array = explode($delimiter, $string);
|
|
$result = array();
|
|
$numkeys = floor(count($array) / 2);
|
|
for ($i = 0; $i < $numkeys; $i += 1) {
|
|
$result[$array[$i * 2]] = $array[$i * 2 + 1];
|
|
}
|
|
return $result;
|
|
}
|
|
|
|
function get_staticroutes($returnsubnetsonly = false, $returnhostnames = false) {
|
|
global $config, $aliastable;
|
|
|
|
/* Bail if there are no routes, but return an array always so callers don't have to check. */
|
|
if (!is_array($config['staticroutes']['route']))
|
|
return array();
|
|
|
|
$allstaticroutes = array();
|
|
$allsubnets = array();
|
|
/* Loop through routes and expand aliases as we find them. */
|
|
foreach ($config['staticroutes']['route'] as $route) {
|
|
if (is_alias($route['network'])) {
|
|
if (!isset($aliastable[$route['network']]))
|
|
continue;
|
|
|
|
$subnets = preg_split('/\s+/', $aliastable[$route['network']]);
|
|
foreach ($subnets as $net) {
|
|
if (!is_subnet($net)) {
|
|
if (is_ipaddrv4($net))
|
|
$net .= "/32";
|
|
else if (is_ipaddrv6($net))
|
|
$net .= "/128";
|
|
else if ($returnhostnames === false || !is_fqdn($net))
|
|
continue;
|
|
}
|
|
$temproute = $route;
|
|
$temproute['network'] = $net;
|
|
$allstaticroutes[] = $temproute;
|
|
$allsubnets[] = $net;
|
|
}
|
|
} elseif (is_subnet($route['network'])) {
|
|
$allstaticroutes[] = $route;
|
|
$allsubnets[] = $route['network'];
|
|
}
|
|
}
|
|
if ($returnsubnetsonly)
|
|
return $allsubnets;
|
|
else
|
|
return $allstaticroutes;
|
|
}
|
|
|
|
/****f* util/get_alias_list
|
|
* NAME
|
|
* get_alias_list - Provide a list of aliases.
|
|
* INPUTS
|
|
* $type - Optional, can be a string or array specifying what type(s) of aliases you need.
|
|
* RESULT
|
|
* Array containing list of aliases.
|
|
* If $type is unspecified, all aliases are returned.
|
|
* If $type is a string, all aliases of the type specified in $type are returned.
|
|
* If $type is an array, all aliases of any type specified in any element of $type are returned.
|
|
*/
|
|
function get_alias_list($type = null) {
|
|
global $config;
|
|
$result = array();
|
|
if ($config['aliases']['alias'] <> "" && is_array($config['aliases']['alias'])) {
|
|
foreach ($config['aliases']['alias'] as $alias) {
|
|
if ($type === null) {
|
|
$result[] = $alias['name'];
|
|
}
|
|
else if (is_array($type)) {
|
|
if (in_array($alias['type'], $type)) {
|
|
$result[] = $alias['name'];
|
|
}
|
|
}
|
|
else if ($type === $alias['type']) {
|
|
$result[] = $alias['name'];
|
|
}
|
|
}
|
|
}
|
|
return $result;
|
|
}
|
|
|
|
/* returns an array consisting of every element of $haystack that is not equal to $needle. */
|
|
function array_exclude($needle, $haystack) {
|
|
$result = array();
|
|
if (is_array($haystack)) {
|
|
foreach ($haystack as $thing) {
|
|
if ($needle !== $thing) {
|
|
$result[] = $thing;
|
|
}
|
|
}
|
|
}
|
|
return $result;
|
|
}
|
|
|
|
function get_current_theme() {
|
|
global $config, $g;
|
|
/*
|
|
* if user has selected a custom template, use it.
|
|
* otherwise default to pfsense tempalte
|
|
*/
|
|
if (($g["disablethemeselection"] === true) && !empty($g["default_theme"]) && (is_dir($g["www_path"].'/themes/'.$g["default_theme"])))
|
|
$theme = $g["default_theme"];
|
|
elseif($config['theme'] <> "" && (is_dir($g["www_path"].'/themes/'.$config['theme'])))
|
|
$theme = $config['theme'];
|
|
else
|
|
$theme = "pfsense";
|
|
/*
|
|
* If this device is an apple ipod/iphone
|
|
* switch the theme to one that works with it.
|
|
*/
|
|
$lowres_ua = array("iPhone", "iPod", "iPad", "Android", "BlackBerry", "Opera Mini", "Opera Mobi", "PlayBook", "IEMobile");
|
|
foreach($lowres_ua as $useragent)
|
|
if(strstr($_SERVER['HTTP_USER_AGENT'], $useragent))
|
|
$theme = (empty($g['theme_lowres']) && (is_dir($g["www_path"].'/themes/'.$g['theme_lowres']))) ? "pfsense" : $g['theme_lowres'];
|
|
return $theme;
|
|
}
|
|
|
|
/* Define what is preferred, IPv4 or IPv6 */
|
|
function prefer_ipv4_or_ipv6() {
|
|
global $config;
|
|
|
|
if (isset($config['system']['prefer_ipv4']))
|
|
mwexec("/etc/rc.d/ip6addrctl prefer_ipv4");
|
|
else
|
|
mwexec("/etc/rc.d/ip6addrctl prefer_ipv6");
|
|
}
|
|
|
|
/* Redirect to page passing parameters via POST */
|
|
function post_redirect($page, $params) {
|
|
if (!is_array($params))
|
|
return;
|
|
|
|
print "<html><body><form action=\"{$page}\" name=\"formredir\" method=\"post\">\n";
|
|
foreach ($params as $key => $value) {
|
|
print "<input type=\"hidden\" name=\"{$key}\" value=\"{$value}\" />\n";
|
|
}
|
|
print "</form><script type=\"text/javascript\">document.formredir.submit();</script>\n";
|
|
print "</body></html>\n";
|
|
}
|
|
|
|
/* Locate disks that can be queried for S.M.A.R.T. data. */
|
|
function get_smart_drive_list() {
|
|
$disk_list = explode(" ", get_single_sysctl("kern.disks"));
|
|
foreach ($disk_list as $id => $disk) {
|
|
// We only want certain kinds of disks for S.M.A.R.T.
|
|
// 1 is a match, 0 is no match, False is any problem processing the regex
|
|
if (preg_match("/^(ad|da|ada).*[0-9]{1,2}$/", $disk) !== 1) {
|
|
unset($disk_list[$id]);
|
|
}
|
|
}
|
|
sort($disk_list);
|
|
return $disk_list;
|
|
}
|
|
|
|
?>
|