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<?php
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/*
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util.inc
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*/
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/* ====================================================================
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* Copyright (c) 2004-2015 Electric Sheep Fencing, LLC. All rights reserved.
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*
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* Some or all of this file is based on the m0n0wall project which is
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* Copyright (c) 2004 Manuel Kasper (BSD 2 clause)
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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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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*
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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
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgment:
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* "This product includes software developed by the pfSense Project
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* for use in the pfSense software distribution. (http://www.pfsense.org/).
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*
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* 4. The names "pfSense" and "pfSense Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* coreteam@pfsense.org.
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*
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* 5. Products derived from this software may not be called "pfSense"
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* nor may "pfSense" appear in their names without prior written
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* permission of the Electric Sheep Fencing, LLC.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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*
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* "This product includes software developed by the pfSense Project
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* for use in the pfSense software distribution (http://www.pfsense.org/).
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*
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* THIS SOFTWARE IS PROVIDED BY THE pfSense PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE pfSense PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* 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
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* ====================================================================
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*
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*/
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define('VIP_ALL', 1);
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define('VIP_CARP', 2);
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define('VIP_IPALIAS', 3);
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62
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63
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/* kill a process by pid file */
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64
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function killbypid($pidfile) {
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65
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return sigkillbypid($pidfile, "TERM");
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}
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67
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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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}
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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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}
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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($procname));
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}
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}
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function is_subsystem_dirty($subsystem = "") {
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global $g;
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if ($subsystem == "") {
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return false;
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}
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if (file_exists("{$g['varrun_path']}/{$subsystem}.dirty")) {
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return true;
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}
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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"), $subsystem));
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}
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}
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function clear_subsystem_dirty($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: A name must be given as parameter to lock() function."));
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}
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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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}
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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: A name must be given as parameter to try_lock() function."));
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}
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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 $g;
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205
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@unlink("{$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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$g['event_address'] = "unix:///var/run/check_reload_status";
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}
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215
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$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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}
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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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}
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$try++;
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}
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}
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233
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234
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function send_multiple_events($cmds) {
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global $g;
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if (!isset($g['event_address'])) {
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$g['event_address'] = "unix:///var/run/check_reload_status";
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}
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240
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241
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if (!is_array($cmds)) {
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return;
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}
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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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254
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}
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255
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fclose($fd);
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256
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$try = 3;
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257
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} else if (!is_process_running("check_reload_status")) {
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258
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mwexec_bg("/usr/bin/nice -n20 /usr/local/sbin/check_reload_status");
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259
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}
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260
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$try++;
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261
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}
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262
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}
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263
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264
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function refcount_init($reference) {
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265
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$shmid = @shmop_open($reference, "c", 0644, 10);
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266
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@shmop_write($shmid, str_pad("0", 10, "\x0", STR_PAD_RIGHT), 0);
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267
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@shmop_close($shmid);
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268
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}
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269
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270
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function refcount_reference($reference) {
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271
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/* Take out a lock across the shared memory read, increment, write sequence to make it atomic. */
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272
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$shm_lck = lock("shm{$reference}", LOCK_EX);
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273
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try {
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274
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/* NOTE: A warning is generated when shared memory does not exist */
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275
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$shmid = @shmop_open($reference, "w", 0, 0);
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276
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if (!$shmid) {
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277
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refcount_init($reference);
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278
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$shmid = @shmop_open($reference, "w", 0, 0);
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279
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if (!$shmid) {
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280
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log_error(sprintf(gettext("Could not open shared memory %s"), $reference));
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281
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unlock($shm_lck);
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282
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return;
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283
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}
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284
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}
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285
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$shm_data = @shmop_read($shmid, 0, 10);
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286
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$shm_data = intval($shm_data) + 1;
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287
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@shmop_write($shmid, str_pad($shm_data, 10, "\x0", STR_PAD_RIGHT), 0);
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288
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@shmop_close($shmid);
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289
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unlock($shm_lck);
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290
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} catch (Exception $e) {
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291
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log_error($e->getMessage());
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292
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unlock($shm_lck);
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293
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}
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294
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295
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return $shm_data;
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296
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}
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297
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|
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298
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function refcount_unreference($reference) {
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299
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/* Take out a lock across the shared memory read, decrement, write sequence to make it atomic. */
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300
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$shm_lck = lock("shm{$reference}", LOCK_EX);
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301
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try {
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302
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$shmid = @shmop_open($reference, "w", 0, 0);
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303
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if (!$shmid) {
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304
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refcount_init($reference);
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305
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log_error(sprintf(gettext("Could not open shared memory %s"), $reference));
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306
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unlock($shm_lck);
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307
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return;
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|
308
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}
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309
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$shm_data = @shmop_read($shmid, 0, 10);
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310
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$shm_data = intval($shm_data) - 1;
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311
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if ($shm_data < 0) {
|
|
312
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//debug_backtrace();
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313
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log_error(sprintf(gettext("Reference %s is going negative, not doing unreference."), $reference));
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314
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} else {
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315
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@shmop_write($shmid, str_pad($shm_data, 10, "\x0", STR_PAD_RIGHT), 0);
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316
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}
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317
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@shmop_close($shmid);
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318
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unlock($shm_lck);
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319
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} catch (Exception $e) {
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320
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log_error($e->getMessage());
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321
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unlock($shm_lck);
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322
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}
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323
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|
|
324
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return $shm_data;
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|
325
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}
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|
326
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|
|
327
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function refcount_read($reference) {
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328
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/* This function just reads the current value of the refcount for information. */
|
|
329
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/* There is no need for locking. */
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330
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$shmid = @shmop_open($reference, "a", 0, 0);
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331
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if (!$shmid) {
|
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332
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log_error(sprintf(gettext("Could not open shared memory for read %s"), $reference));
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333
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return -1;
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|
334
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}
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|
335
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$shm_data = @shmop_read($shmid, 0, 10);
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|
336
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@shmop_close($shmid);
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|
337
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return $shm_data;
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|
338
|
}
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|
339
|
|
|
340
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function is_module_loaded($module_name) {
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|
341
|
$module_name = str_replace(".ko", "", $module_name);
|
|
342
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$running = 0;
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343
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$_gb = exec("/sbin/kldstat -qn {$module_name} 2>&1", $_gb, $running);
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|
344
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if (intval($running) == 0) {
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345
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return true;
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|
346
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} else {
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|
347
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return false;
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|
348
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}
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|
349
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}
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|
350
|
|
|
351
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/* validate non-negative numeric string, or equivalent numeric variable */
|
|
352
|
function is_numericint($arg) {
|
|
353
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return (((is_int($arg) && $arg >= 0) || (is_string($arg) && strlen($arg) > 0 && ctype_digit($arg))) ? true : false);
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|
354
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}
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|
355
|
|
|
356
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/* Generate the (human readable) ipv4 or ipv6 subnet address (i.e., netmask, or subnet start IP)
|
|
357
|
given an (human readable) ipv4 or ipv6 host address and subnet bit count */
|
|
358
|
function gen_subnet($ipaddr, $bits) {
|
|
359
|
if (($sn = gen_subnetv6($ipaddr, $bits)) == '') {
|
|
360
|
$sn = gen_subnetv4($ipaddr, $bits); // try to avoid rechecking IPv4/v6
|
|
361
|
}
|
|
362
|
return $sn;
|
|
363
|
}
|
|
364
|
|
|
365
|
/* same as gen_subnet() but accepts IPv4 only */
|
|
366
|
function gen_subnetv4($ipaddr, $bits) {
|
|
367
|
if (is_ipaddrv4($ipaddr) && is_numericint($bits) && $bits <= 32) {
|
|
368
|
if ($bits == 0) {
|
|
369
|
return '0.0.0.0'; // avoids <<32
|
|
370
|
}
|
|
371
|
return long2ip(ip2long($ipaddr) & ((0xFFFFFFFF << (32 - $bits)) & 0xFFFFFFFF));
|
|
372
|
}
|
|
373
|
return "";
|
|
374
|
}
|
|
375
|
|
|
376
|
/* same as gen_subnet() but accepts IPv6 only */
|
|
377
|
function gen_subnetv6($ipaddr, $bits) {
|
|
378
|
if (is_ipaddrv6($ipaddr) && is_numericint($bits) && $bits <= 128) {
|
|
379
|
return Net_IPv6::compress(Net_IPv6::getNetmask($ipaddr, $bits));
|
|
380
|
}
|
|
381
|
return "";
|
|
382
|
}
|
|
383
|
|
|
384
|
/* Generate the (human readable) ipv4 or ipv6 subnet end address (i.e., highest address, end IP, or IPv4 broadcast address)
|
|
385
|
given an (human readable) ipv4 or ipv6 host address and subnet bit count. */
|
|
386
|
function gen_subnet_max($ipaddr, $bits) {
|
|
387
|
if (($sn = gen_subnetv6_max($ipaddr, $bits)) == '') {
|
|
388
|
$sn = gen_subnetv4_max($ipaddr, $bits); // try to avoid rechecking IPv4/v6
|
|
389
|
}
|
|
390
|
return $sn;
|
|
391
|
}
|
|
392
|
|
|
393
|
/* same as gen_subnet_max() but validates IPv4 only */
|
|
394
|
function gen_subnetv4_max($ipaddr, $bits) {
|
|
395
|
if (is_ipaddrv4($ipaddr) && is_numericint($bits) && $bits <= 32) {
|
|
396
|
if ($bits == 32) {
|
|
397
|
return $ipaddr;
|
|
398
|
}
|
|
399
|
return long2ip32(ip2long($ipaddr) | (~gen_subnet_mask_long($bits) & 0xFFFFFFFF));
|
|
400
|
}
|
|
401
|
return "";
|
|
402
|
}
|
|
403
|
|
|
404
|
/* same as gen_subnet_max() but validates IPv6 only */
|
|
405
|
function gen_subnetv6_max($ipaddr, $bits) {
|
|
406
|
if (is_ipaddrv6($ipaddr) && is_numericint($bits) && $bits <= 128) {
|
|
407
|
$endip_bin = substr(Net_IPv6::_ip2Bin($ipaddr), 0, $bits) . str_repeat('1', 128 - $bits);
|
|
408
|
return Net_IPv6::compress(Net_IPv6::_bin2Ip($endip_bin));
|
|
409
|
}
|
|
410
|
return "";
|
|
411
|
}
|
|
412
|
|
|
413
|
/* returns a subnet mask (long given a bit count) */
|
|
414
|
function gen_subnet_mask_long($bits) {
|
|
415
|
$sm = 0;
|
|
416
|
for ($i = 0; $i < $bits; $i++) {
|
|
417
|
$sm >>= 1;
|
|
418
|
$sm |= 0x80000000;
|
|
419
|
}
|
|
420
|
return $sm;
|
|
421
|
}
|
|
422
|
|
|
423
|
/* same as above but returns a string */
|
|
424
|
function gen_subnet_mask($bits) {
|
|
425
|
return long2ip(gen_subnet_mask_long($bits));
|
|
426
|
}
|
|
427
|
|
|
428
|
/* Convert a prefix length to an IPv6 address-like mask notation. Very rare but at least ntp needs it. See #4463 */
|
|
429
|
function gen_subnet_mask_v6($bits) {
|
|
430
|
/* Binary representation of the prefix length */
|
|
431
|
$bin = str_repeat('1', $bits);
|
|
432
|
/* Pad right with zeroes to reach the full address length */
|
|
433
|
$bin = str_pad($bin, 128, '0', STR_PAD_RIGHT);
|
|
434
|
/* Convert back to an IPv6 address style notation */
|
|
435
|
return Net_IPv6::_bin2Ip($bin);
|
|
436
|
}
|
|
437
|
|
|
438
|
/* Convert long int to IPv4 address
|
|
439
|
Returns '' if not valid IPv4 (including if any bits >32 are non-zero) */
|
|
440
|
function long2ip32($ip) {
|
|
441
|
return long2ip($ip & 0xFFFFFFFF);
|
|
442
|
}
|
|
443
|
|
|
444
|
/* Convert IPv4 address to long int, truncated to 32-bits to avoid sign extension on 64-bit platforms.
|
|
445
|
Returns '' if not valid IPv4. */
|
|
446
|
function ip2long32($ip) {
|
|
447
|
return (ip2long($ip) & 0xFFFFFFFF);
|
|
448
|
}
|
|
449
|
|
|
450
|
/* Convert IPv4 address to unsigned long int.
|
|
451
|
Returns '' if not valid IPv4. */
|
|
452
|
function ip2ulong($ip) {
|
|
453
|
return sprintf("%u", ip2long32($ip));
|
|
454
|
}
|
|
455
|
|
|
456
|
/* Find out how many IPs are contained within a given IP range
|
|
457
|
* e.g. 192.168.0.0 to 192.168.0.255 returns 256
|
|
458
|
*/
|
|
459
|
function ip_range_size_v4($startip, $endip) {
|
|
460
|
if (is_ipaddrv4($startip) && is_ipaddrv4($endip)) {
|
|
461
|
// Operate as unsigned long because otherwise it wouldn't work
|
|
462
|
// when crossing over from 127.255.255.255 / 128.0.0.0 barrier
|
|
463
|
return abs(ip2ulong($startip) - ip2ulong($endip)) + 1;
|
|
464
|
}
|
|
465
|
return -1;
|
|
466
|
}
|
|
467
|
|
|
468
|
/* Find the smallest possible subnet mask which can contain a given number of IPs
|
|
469
|
* e.g. 512 IPs can fit in a /23, but 513 IPs need a /22
|
|
470
|
*/
|
|
471
|
function find_smallest_cidr_v4($number) {
|
|
472
|
$smallest = 1;
|
|
473
|
for ($b=32; $b > 0; $b--) {
|
|
474
|
$smallest = ($number <= pow(2, $b)) ? $b : $smallest;
|
|
475
|
}
|
|
476
|
return (32-$smallest);
|
|
477
|
}
|
|
478
|
|
|
479
|
/* Return the previous IP address before the given address */
|
|
480
|
function ip_before($ip, $offset = 1) {
|
|
481
|
return long2ip32(ip2long($ip) - $offset);
|
|
482
|
}
|
|
483
|
|
|
484
|
/* Return the next IP address after the given address */
|
|
485
|
function ip_after($ip, $offset = 1) {
|
|
486
|
return long2ip32(ip2long($ip) + $offset);
|
|
487
|
}
|
|
488
|
|
|
489
|
/* Return true if the first IP is 'before' the second */
|
|
490
|
function ip_less_than($ip1, $ip2) {
|
|
491
|
// Compare as unsigned long because otherwise it wouldn't work when
|
|
492
|
// crossing over from 127.255.255.255 / 128.0.0.0 barrier
|
|
493
|
return ip2ulong($ip1) < ip2ulong($ip2);
|
|
494
|
}
|
|
495
|
|
|
496
|
/* Return true if the first IP is 'after' the second */
|
|
497
|
function ip_greater_than($ip1, $ip2) {
|
|
498
|
// Compare as unsigned long because otherwise it wouldn't work
|
|
499
|
// when crossing over from 127.255.255.255 / 128.0.0.0 barrier
|
|
500
|
return ip2ulong($ip1) > ip2ulong($ip2);
|
|
501
|
}
|
|
502
|
|
|
503
|
/* compare two IP addresses */
|
|
504
|
function ipcmp($a, $b) {
|
|
505
|
if (ip_less_than($a, $b)) {
|
|
506
|
return -1;
|
|
507
|
} else if (ip_greater_than($a, $b)) {
|
|
508
|
return 1;
|
|
509
|
} else {
|
|
510
|
return 0;
|
|
511
|
}
|
|
512
|
}
|
|
513
|
|
|
514
|
/* Convert a range of IPv4 addresses to an array of individual addresses. */
|
|
515
|
/* Note: IPv6 ranges are not yet supported here. */
|
|
516
|
function ip_range_to_address_array($startip, $endip, $max_size = 5000) {
|
|
517
|
if (!is_ipaddrv4($startip) || !is_ipaddrv4($endip)) {
|
|
518
|
return false;
|
|
519
|
}
|
|
520
|
|
|
521
|
if (ip_greater_than($startip, $endip)) {
|
|
522
|
// Swap start and end so we can process sensibly.
|
|
523
|
$temp = $startip;
|
|
524
|
$startip = $endip;
|
|
525
|
$endip = $temp;
|
|
526
|
}
|
|
527
|
|
|
528
|
if (ip_range_size_v4($startip, $endip) > $max_size) {
|
|
529
|
return false;
|
|
530
|
}
|
|
531
|
|
|
532
|
// Container for IP addresses within this range.
|
|
533
|
$rangeaddresses = array();
|
|
534
|
$end_int = ip2ulong($endip);
|
|
535
|
for ($ip_int = ip2ulong($startip); $ip_int <= $end_int; $ip_int++) {
|
|
536
|
$rangeaddresses[] = long2ip($ip_int);
|
|
537
|
}
|
|
538
|
|
|
539
|
return $rangeaddresses;
|
|
540
|
}
|
|
541
|
|
|
542
|
/* Convert an IPv4 or IPv6 IP range to an array of subnets which can contain the range.
|
|
543
|
Algorithm and embodying code PD'ed by Stilez - enjoy as you like :-)
|
|
544
|
|
|
545
|
Documented on pfsense dev list 19-20 May 2013. Summary:
|
|
546
|
|
|
547
|
The algorithm looks at patterns of 0's and 1's in the least significant bit(s), whether IPv4 or IPv6.
|
|
548
|
These are all that needs checking to identify a _guaranteed_ correct, minimal and optimal subnet array.
|
|
549
|
|
|
550
|
As a result, string/binary pattern matching of the binary IP is very efficient. It uses just 2 pattern-matching rules
|
|
551
|
to chop off increasingly larger subnets at both ends that can't be part of larger subnets, until nothing's left.
|
|
552
|
|
|
553
|
(a) If any range has EITHER low bit 1 (in startip) or 0 (in endip), that end-point is _always guaranteed_ to be optimally
|
|
554
|
represented by its own 'single IP' CIDR; the remaining range then shrinks by one IP up or down, causing the new end-point's
|
|
555
|
low bit to change from 1->0 (startip) or 0->1 (endip). Only one edge case needs checking: if a range contains exactly 2
|
|
556
|
adjacent IPs of this format, then the two IPs themselves are required to span it, and we're done.
|
|
557
|
Once this rule is applied, the remaining range is _guaranteed_ to end in 0's and 1's so rule (b) can now be used, and its
|
|
558
|
low bits can now be ignored.
|
|
559
|
|
|
560
|
(b) If any range has BOTH startip and endip ending in some number of 0's and 1's respectively, these low bits can
|
|
561
|
*always* be ignored and "bit-shifted" for subnet spanning. So provided we remember the bits we've place-shifted, we can
|
|
562
|
_always_ right-shift and chop off those bits, leaving a smaller range that has EITHER startip ending in 1 or endip ending
|
|
563
|
in 0 (ie can now apply (a) again) or the entire range has vanished and we're done.
|
|
564
|
We then loop to redo (a) again on the remaining (place shifted) range until after a few loops, the remaining (place shifted)
|
|
565
|
range 'vanishes' by meeting the exit criteria of (a) or (b), and we're done.
|
|
566
|
*/
|
|
567
|
|
|
568
|
function ip_range_to_subnet_array($ip1, $ip2) {
|
|
569
|
|
|
570
|
if (is_ipaddrv4($ip1) && is_ipaddrv4($ip2)) {
|
|
571
|
$proto = 'ipv4'; // for clarity
|
|
572
|
$bits = 32;
|
|
573
|
$ip1bin = decbin(ip2long32($ip1));
|
|
574
|
$ip2bin = decbin(ip2long32($ip2));
|
|
575
|
} elseif (is_ipaddrv6($ip1) && is_ipaddrv6($ip2)) {
|
|
576
|
$proto = 'ipv6';
|
|
577
|
$bits = 128;
|
|
578
|
$ip1bin = Net_IPv6::_ip2Bin($ip1);
|
|
579
|
$ip2bin = Net_IPv6::_ip2Bin($ip2);
|
|
580
|
} else {
|
|
581
|
return array();
|
|
582
|
}
|
|
583
|
|
|
584
|
// it's *crucial* that binary strings are guaranteed the expected length; do this for certainty even though for IPv6 it's redundant
|
|
585
|
$ip1bin = str_pad($ip1bin, $bits, '0', STR_PAD_LEFT);
|
|
586
|
$ip2bin = str_pad($ip2bin, $bits, '0', STR_PAD_LEFT);
|
|
587
|
|
|
588
|
if ($ip1bin == $ip2bin) {
|
|
589
|
return array($ip1 . '/' . $bits); // exit if ip1=ip2 (trivial case)
|
|
590
|
}
|
|
591
|
|
|
592
|
if ($ip1bin > $ip2bin) {
|
|
593
|
list ($ip1bin, $ip2bin) = array($ip2bin, $ip1bin); // swap if needed (ensures ip1 < ip2)
|
|
594
|
}
|
|
595
|
|
|
596
|
$rangesubnets = array();
|
|
597
|
$netsize = 0;
|
|
598
|
|
|
599
|
do {
|
|
600
|
// at loop start, $ip1 is guaranteed strictly less than $ip2 (important for edge case trapping and preventing accidental binary wrapround)
|
|
601
|
// which means the assignments $ip1 += 1 and $ip2 -= 1 will always be "binary-wrapround-safe"
|
|
602
|
|
|
603
|
// step #1 if start ip (as shifted) ends in any '1's, then it must have a single cidr to itself (any cidr would include the '0' below it)
|
|
604
|
|
|
605
|
if (substr($ip1bin, -1, 1) == '1') {
|
|
606
|
// the start ip must be in a separate one-IP cidr range
|
|
607
|
$new_subnet_ip = substr($ip1bin, $netsize, $bits - $netsize) . str_repeat('0', $netsize);
|
|
608
|
$rangesubnets[$new_subnet_ip] = $bits - $netsize;
|
|
609
|
$n = strrpos($ip1bin, '0'); //can't be all 1's
|
|
610
|
$ip1bin = ($n == 0 ? '' : substr($ip1bin, 0, $n)) . '1' . str_repeat('0', $bits - $n - 1); // BINARY VERSION OF $ip1 += 1
|
|
611
|
}
|
|
612
|
|
|
613
|
// step #2, if end ip (as shifted) ends in any zeros then that must have a cidr to itself (as cidr cant span the 1->0 gap)
|
|
614
|
|
|
615
|
if (substr($ip2bin, -1, 1) == '0') {
|
|
616
|
// the end ip must be in a separate one-IP cidr range
|
|
617
|
$new_subnet_ip = substr($ip2bin, $netsize, $bits - $netsize) . str_repeat('0', $netsize);
|
|
618
|
$rangesubnets[$new_subnet_ip] = $bits - $netsize;
|
|
619
|
$n = strrpos($ip2bin, '1'); //can't be all 0's
|
|
620
|
$ip2bin = ($n == 0 ? '' : substr($ip2bin, 0, $n)) . '0' . str_repeat('1', $bits - $n - 1); // BINARY VERSION OF $ip2 -= 1
|
|
621
|
// already checked for the edge case where end = start+1 and start ends in 0x1, above, so it's safe
|
|
622
|
}
|
|
623
|
|
|
624
|
// this is the only edge case arising from increment/decrement.
|
|
625
|
// it happens if the range at start of loop is exactly 2 adjacent ips, that spanned the 1->0 gap. (we will have enumerated both by now)
|
|
626
|
|
|
627
|
if ($ip2bin < $ip1bin) {
|
|
628
|
continue;
|
|
629
|
}
|
|
630
|
|
|
631
|
// step #3 the start and end ip MUST now end in '0's and '1's respectively
|
|
632
|
// so we have a non-trivial range AND the last N bits are no longer important for CIDR purposes.
|
|
633
|
|
|
634
|
$shift = $bits - max(strrpos($ip1bin, '0'), strrpos($ip2bin, '1')); // num of low bits which are '0' in ip1 and '1' in ip2
|
|
635
|
$ip1bin = str_repeat('0', $shift) . substr($ip1bin, 0, $bits - $shift);
|
|
636
|
$ip2bin = str_repeat('0', $shift) . substr($ip2bin, 0, $bits - $shift);
|
|
637
|
$netsize += $shift;
|
|
638
|
if ($ip1bin == $ip2bin) {
|
|
639
|
// we're done.
|
|
640
|
$new_subnet_ip = substr($ip1bin, $netsize, $bits - $netsize) . str_repeat('0', $netsize);
|
|
641
|
$rangesubnets[$new_subnet_ip] = $bits - $netsize;
|
|
642
|
continue;
|
|
643
|
}
|
|
644
|
|
|
645
|
// at this point there's still a remaining range, and either startip ends with '1', or endip ends with '0'. So repeat cycle.
|
|
646
|
} while ($ip1bin < $ip2bin);
|
|
647
|
|
|
648
|
// subnets are ordered by bit size. Re sort by IP ("naturally") and convert back to IPv4/IPv6
|
|
649
|
|
|
650
|
ksort($rangesubnets, SORT_STRING);
|
|
651
|
$out = array();
|
|
652
|
|
|
653
|
foreach ($rangesubnets as $ip => $netmask) {
|
|
654
|
if ($proto == 'ipv4') {
|
|
655
|
$i = str_split($ip, 8);
|
|
656
|
$out[] = implode('.', array(bindec($i[0]), bindec($i[1]), bindec($i[2]), bindec($i[3]))) . '/' . $netmask;
|
|
657
|
} else {
|
|
658
|
$out[] = Net_IPv6::compress(Net_IPv6::_bin2Ip($ip)) . '/' . $netmask;
|
|
659
|
}
|
|
660
|
}
|
|
661
|
|
|
662
|
return $out;
|
|
663
|
}
|
|
664
|
|
|
665
|
/* returns true if $range is a valid pair of IPv4 or IPv6 addresses separated by a "-"
|
|
666
|
false - if not a valid pair
|
|
667
|
true (numeric 4 or 6) - if valid, gives type of addresses */
|
|
668
|
function is_iprange($range) {
|
|
669
|
if (substr_count($range, '-') != 1) {
|
|
670
|
return false;
|
|
671
|
}
|
|
672
|
list($ip1, $ip2) = explode ('-', $range);
|
|
673
|
if (is_ipaddrv4($ip1) && is_ipaddrv4($ip2)) {
|
|
674
|
return 4;
|
|
675
|
}
|
|
676
|
if (is_ipaddrv6($ip1) && is_ipaddrv6($ip2)) {
|
|
677
|
return 6;
|
|
678
|
}
|
|
679
|
return false;
|
|
680
|
}
|
|
681
|
|
|
682
|
/* returns true if $ipaddr is a valid dotted IPv4 address or a IPv6
|
|
683
|
false - not valid
|
|
684
|
true (numeric 4 or 6) - if valid, gives type of address */
|
|
685
|
function is_ipaddr($ipaddr) {
|
|
686
|
if (is_ipaddrv4($ipaddr)) {
|
|
687
|
return 4;
|
|
688
|
}
|
|
689
|
if (is_ipaddrv6($ipaddr)) {
|
|
690
|
return 6;
|
|
691
|
}
|
|
692
|
return false;
|
|
693
|
}
|
|
694
|
|
|
695
|
/* returns true if $ipaddr is a valid IPv6 address */
|
|
696
|
function is_ipaddrv6($ipaddr) {
|
|
697
|
if (!is_string($ipaddr) || empty($ipaddr)) {
|
|
698
|
return false;
|
|
699
|
}
|
|
700
|
if (strstr($ipaddr, "%") && is_linklocal($ipaddr)) {
|
|
701
|
$tmpip = explode("%", $ipaddr);
|
|
702
|
$ipaddr = $tmpip[0];
|
|
703
|
}
|
|
704
|
return Net_IPv6::checkIPv6($ipaddr);
|
|
705
|
}
|
|
706
|
|
|
707
|
/* returns true if $ipaddr is a valid dotted IPv4 address */
|
|
708
|
function is_ipaddrv4($ipaddr) {
|
|
709
|
if (!is_string($ipaddr) || empty($ipaddr) || ip2long($ipaddr) === FALSE) {
|
|
710
|
return false;
|
|
711
|
}
|
|
712
|
return true;
|
|
713
|
}
|
|
714
|
|
|
715
|
/* returns 4 or 6 respectively (== TRUE) if $ipaddr is a valid IPv4 or IPv6 linklocal address
|
|
716
|
returns '' if not a valid linklocal address */
|
|
717
|
function is_linklocal($ipaddr) {
|
|
718
|
if (is_ipaddrv4($ipaddr)) {
|
|
719
|
// input is IPv4
|
|
720
|
// test if it's 169.254.x.x per rfc3927 2.1
|
|
721
|
$ip4 = explode(".", $ipaddr);
|
|
722
|
if ($ip4[0] == '169' && $ip4[1] == '254') {
|
|
723
|
return 4;
|
|
724
|
}
|
|
725
|
} elseif (Net_IPv6::getAddressType($ipaddr) == NET_IPV6_LOCAL_LINK) {
|
|
726
|
return 6;
|
|
727
|
}
|
|
728
|
return '';
|
|
729
|
}
|
|
730
|
|
|
731
|
/* returns scope of a linklocal address */
|
|
732
|
function get_ll_scope($addr) {
|
|
733
|
if (!is_linklocal($addr) || !strstr($addr, "%")) {
|
|
734
|
return "";
|
|
735
|
}
|
|
736
|
list ($ll, $scope) = explode("%", $addr);
|
|
737
|
return $scope;
|
|
738
|
}
|
|
739
|
|
|
740
|
/* returns true if $ipaddr is a valid literal IPv6 address */
|
|
741
|
function is_literalipaddrv6($ipaddr) {
|
|
742
|
if (substr($ipaddr,0,1) == '[' && substr($ipaddr,-1,1) == ']') {
|
|
743
|
// if it's data wrapped in "[ ... ]" then test if middle part is valid IPv6
|
|
744
|
return is_ipaddrv6(substr($ipaddr,1,-1));
|
|
745
|
}
|
|
746
|
return false;
|
|
747
|
}
|
|
748
|
|
|
749
|
/* returns true if $iport is a valid IPv4:port or [Literal IPv6]:port
|
|
750
|
false - not valid
|
|
751
|
true (numeric 4 or 6) - if valid, gives type of address */
|
|
752
|
function is_ipaddrwithport($ipport) {
|
|
753
|
$c = strrpos($ipport, ":");
|
|
754
|
if ($c === false) {
|
|
755
|
return false; // can't split at final colon if no colon exists
|
|
756
|
}
|
|
757
|
|
|
758
|
if (!is_port(substr($ipport, $c + 1))) {
|
|
759
|
return false; // no valid port after last colon
|
|
760
|
}
|
|
761
|
|
|
762
|
$ip = substr($ipport, 0, $c); // else is text before last colon a valid IP
|
|
763
|
if (is_literalipaddrv6($ip)) {
|
|
764
|
return 6;
|
|
765
|
} elseif (is_ipaddrv4($ip)) {
|
|
766
|
return 4;
|
|
767
|
} else {
|
|
768
|
return false;
|
|
769
|
}
|
|
770
|
}
|
|
771
|
|
|
772
|
function is_hostnamewithport($hostport) {
|
|
773
|
$parts = explode(":", $hostport);
|
|
774
|
// no need to validate with is_string(); if it's not a string then explode won't return 2 parts anyway
|
|
775
|
if (count($parts) == 2) {
|
|
776
|
return is_hostname($parts[0]) && is_port($parts[1]);
|
|
777
|
}
|
|
778
|
return false;
|
|
779
|
}
|
|
780
|
|
|
781
|
/* returns true if $ipaddr is a valid dotted IPv4 address or an alias thereof */
|
|
782
|
function is_ipaddroralias($ipaddr) {
|
|
783
|
global $config;
|
|
784
|
|
|
785
|
if (is_alias($ipaddr)) {
|
|
786
|
if (is_array($config['aliases']['alias'])) {
|
|
787
|
foreach ($config['aliases']['alias'] as $alias) {
|
|
788
|
if ($alias['name'] == $ipaddr && !preg_match("/port/i", $alias['type'])) {
|
|
789
|
return true;
|
|
790
|
}
|
|
791
|
}
|
|
792
|
}
|
|
793
|
return false;
|
|
794
|
} else {
|
|
795
|
return is_ipaddr($ipaddr);
|
|
796
|
}
|
|
797
|
|
|
798
|
}
|
|
799
|
|
|
800
|
/* returns true if $subnet is a valid IPv4 or IPv6 subnet in CIDR format
|
|
801
|
false - if not a valid subnet
|
|
802
|
true (numeric 4 or 6) - if valid, gives type of subnet */
|
|
803
|
function is_subnet($subnet) {
|
|
804
|
if (is_string($subnet) && preg_match('/^(?:([0-9.]{7,15})|([0-9a-f:]{2,39}))\/(\d{1,3})$/i', $subnet, $parts)) {
|
|
805
|
if (is_ipaddrv4($parts[1]) && $parts[3] <= 32) {
|
|
806
|
return 4;
|
|
807
|
}
|
|
808
|
if (is_ipaddrv6($parts[2]) && $parts[3] <= 128) {
|
|
809
|
return 6;
|
|
810
|
}
|
|
811
|
}
|
|
812
|
return false;
|
|
813
|
}
|
|
814
|
|
|
815
|
/* same as is_subnet() but accepts IPv4 only */
|
|
816
|
function is_subnetv4($subnet) {
|
|
817
|
return (is_subnet($subnet) == 4);
|
|
818
|
}
|
|
819
|
|
|
820
|
/* same as is_subnet() but accepts IPv6 only */
|
|
821
|
function is_subnetv6($subnet) {
|
|
822
|
return (is_subnet($subnet) == 6);
|
|
823
|
}
|
|
824
|
|
|
825
|
/* returns true if $subnet is a valid subnet in CIDR format or an alias thereof */
|
|
826
|
function is_subnetoralias($subnet) {
|
|
827
|
global $aliastable;
|
|
828
|
|
|
829
|
if (isset($aliastable[$subnet]) && is_subnet($aliastable[$subnet])) {
|
|
830
|
return true;
|
|
831
|
} else {
|
|
832
|
return is_subnet($subnet);
|
|
833
|
}
|
|
834
|
}
|
|
835
|
|
|
836
|
/* Get number of addresses in an IPv4/IPv6 subnet (represented as a string)
|
|
837
|
optional $exact=true forces error (0) to be returned if it can't be represented exactly
|
|
838
|
Exact result not possible above PHP_MAX_INT which is about 2^31 addresses on x32 or 2^63 on x64
|
|
839
|
Returns 0 for bad data or if cannot represent size as an INT when $exact is set. */
|
|
840
|
function subnet_size($subnet, $exact=false) {
|
|
841
|
$parts = explode("/", $subnet);
|
|
842
|
if (count($parts) == 2) {
|
|
843
|
if (is_ipaddrv4($parts[0])) {
|
|
844
|
return subnet_size_by_netmask(4, $parts[1], $exact);
|
|
845
|
} elseif (is_ipaddrv6($parts[0])) {
|
|
846
|
return subnet_size_by_netmask(6, $parts[1], $exact);
|
|
847
|
}
|
|
848
|
}
|
|
849
|
return 0;
|
|
850
|
}
|
|
851
|
|
|
852
|
/* Get number of addresses in an IPv4/IPv6 subnet (represented numerically as IP type + bits)
|
|
853
|
optional $exact=true forces error (0) to be returned if it can't be represented exactly
|
|
854
|
Hard to think where we might need to count exactly a huge subnet but an overflow detection option is probably sensible
|
|
855
|
Returns 0 for bad data or if cannot represent size as an INT when $exact is set. */
|
|
856
|
function subnet_size_by_netmask($iptype, $bits, $exact=false) {
|
|
857
|
if (!is_numericint($bits)) {
|
|
858
|
return 0;
|
|
859
|
} elseif ($iptype == 4 && $bits <= 32) {
|
|
860
|
$snsize = 32 - $bits;
|
|
861
|
} elseif ($iptype == 6 && $bits <= 128) {
|
|
862
|
$snsize = 128 - $bits;
|
|
863
|
} else {
|
|
864
|
return 0;
|
|
865
|
}
|
|
866
|
|
|
867
|
// 2**N returns an exact result as an INT if possible, and a float/double if not.
|
|
868
|
// Detect this switch, rather than comparing $result<=PHP_MAX_INT or $bits >=8*PHP_INT_SIZE as it's (probably) easier to get completely reliable
|
|
869
|
$result = 2 ** $snsize;
|
|
870
|
|
|
871
|
if ($exact && !is_int($result)) {
|
|
872
|
//exact required but can't represent result exactly as an INT
|
|
873
|
return 0;
|
|
874
|
} else {
|
|
875
|
// result ok, will be an INT where possible (guaranteed up to 2^31 addresses on x32/x64) and a float for 'huge' subnets
|
|
876
|
return $result;
|
|
877
|
}
|
|
878
|
}
|
|
879
|
|
|
880
|
|
|
881
|
function subnet_expand($subnet) {
|
|
882
|
if (is_subnetv4($subnet)) {
|
|
883
|
return subnetv4_expand($subnet);
|
|
884
|
} else if (is_subnetv6($subnet)) {
|
|
885
|
return subnetv6_expand($subnet);
|
|
886
|
} else {
|
|
887
|
return $subnet;
|
|
888
|
}
|
|
889
|
}
|
|
890
|
|
|
891
|
function subnetv4_expand($subnet) {
|
|
892
|
$result = array();
|
|
893
|
list ($ip, $bits) = explode("/", $subnet);
|
|
894
|
$net = ip2long($ip);
|
|
895
|
$mask = (0xffffffff << (32 - $bits));
|
|
896
|
$net &= $mask;
|
|
897
|
$size = round(exp(log(2) * (32 - $bits)));
|
|
898
|
for ($i = 0; $i < $size; $i += 1) {
|
|
899
|
$result[] = long2ip($net | $i);
|
|
900
|
}
|
|
901
|
return $result;
|
|
902
|
}
|
|
903
|
|
|
904
|
/* find out whether two IPv4/IPv6 CIDR subnets overlap.
|
|
905
|
Note: CIDR overlap implies one is identical or included so largest sn will be the same */
|
|
906
|
function check_subnets_overlap($subnet1, $bits1, $subnet2, $bits2) {
|
|
907
|
if (is_ipaddrv4($subnet1)) {
|
|
908
|
return check_subnetsv4_overlap($subnet1, $bits1, $subnet2, $bits2);
|
|
909
|
} else {
|
|
910
|
return check_subnetsv6_overlap($subnet1, $bits1, $subnet2, $bits2);
|
|
911
|
}
|
|
912
|
}
|
|
913
|
|
|
914
|
/* find out whether two IPv4 CIDR subnets overlap.
|
|
915
|
Note: CIDR overlap means sn1/sn2 are identical or one is included in other. So sn using largest $bits will be the same */
|
|
916
|
function check_subnetsv4_overlap($subnet1, $bits1, $subnet2, $bits2) {
|
|
917
|
$largest_sn = min($bits1, $bits2);
|
|
918
|
$subnetv4_start1 = gen_subnetv4($subnet1, $largest_sn);
|
|
919
|
$subnetv4_start2 = gen_subnetv4($subnet2, $largest_sn);
|
|
920
|
|
|
921
|
if($subnetv4_start1 == '' || $subnetv4_start2 == '') {
|
|
922
|
// One or both args is not a valid IPv4 subnet
|
|
923
|
//FIXME: needs to return "bad data" not true/false if bad. For now return false, best we can do until fixed
|
|
924
|
return false;
|
|
925
|
}
|
|
926
|
return ($subnetv4_start1 == $subnetv4_start2);
|
|
927
|
}
|
|
928
|
|
|
929
|
/* find out whether two IPv6 CIDR subnets overlap.
|
|
930
|
Note: CIDR overlap means sn1/sn2 are identical or one is included in other. So sn using largest $bits will be the same */
|
|
931
|
function check_subnetsv6_overlap($subnet1, $bits1, $subnet2, $bits2) {
|
|
932
|
$largest_sn = min($bits1, $bits2);
|
|
933
|
$subnetv6_start1 = gen_subnetv6($subnet1, $largest_sn);
|
|
934
|
$subnetv6_start2 = gen_subnetv6($subnet2, $largest_sn);
|
|
935
|
|
|
936
|
if($subnetv6_start1 == '' || $subnetv6_start2 == '') {
|
|
937
|
// One or both args is not a valid IPv6 subnet
|
|
938
|
//FIXME: needs to return "bad data" not true/false if bad. For now return false, best we can do until fixed
|
|
939
|
return false;
|
|
940
|
}
|
|
941
|
return ($subnetv6_start1 == $subnetv6_start2);
|
|
942
|
}
|
|
943
|
|
|
944
|
/* return all PTR zones for a IPv6 network */
|
|
945
|
function get_v6_ptr_zones($subnet, $bits) {
|
|
946
|
$result = array();
|
|
947
|
|
|
948
|
if (!is_ipaddrv6($subnet)) {
|
|
949
|
return $result;
|
|
950
|
}
|
|
951
|
|
|
952
|
if (!is_numericint($bits) || $bits > 128) {
|
|
953
|
return $result;
|
|
954
|
}
|
|
955
|
|
|
956
|
/*
|
|
957
|
* Find a small nibble boundary subnet mask
|
|
958
|
* e.g. a /29 will create 8 /32 PTR zones
|
|
959
|
*/
|
|
960
|
$small_sn = $bits;
|
|
961
|
while ($small_sn % 4 != 0) {
|
|
962
|
$small_sn++;
|
|
963
|
}
|
|
964
|
|
|
965
|
/* Get network prefix */
|
|
966
|
$small_subnet = Net_IPv6::getNetmask($subnet, $bits);
|
|
967
|
|
|
968
|
/*
|
|
969
|
* While small network is part of bigger one, increase 4-bit in last
|
|
970
|
* digit to get next small network
|
|
971
|
*/
|
|
972
|
while (Net_IPv6::isInNetmask($small_subnet, $subnet, $bits)) {
|
|
973
|
/* Get a pure hex value */
|
|
974
|
$unpacked = unpack('H*hex', inet_pton($small_subnet));
|
|
975
|
/* Create PTR record using $small_sn / 4 chars */
|
|
976
|
$result[] = implode('.', array_reverse(str_split(substr(
|
|
977
|
$unpacked['hex'], 0, $small_sn / 4)))).'.ip6.arpa';
|
|
978
|
|
|
979
|
/* Detect what part of IP should be increased */
|
|
980
|
$change_part = (int) ($small_sn / 16);
|
|
981
|
if ($small_sn % 16 == 0) {
|
|
982
|
$change_part--;
|
|
983
|
}
|
|
984
|
|
|
985
|
/* Increase 1 to desired part */
|
|
986
|
$parts = explode(":", Net_IPv6::uncompress($small_subnet));
|
|
987
|
$parts[$change_part]++;
|
|
988
|
$small_subnet = implode(":", $parts);
|
|
989
|
}
|
|
990
|
|
|
991
|
return $result;
|
|
992
|
}
|
|
993
|
|
|
994
|
/* return true if $addr is in $subnet, false if not */
|
|
995
|
function ip_in_subnet($addr, $subnet) {
|
|
996
|
if (is_ipaddrv6($addr) && is_subnetv6($subnet)) {
|
|
997
|
return (Net_IPv6::isInNetmask($addr, $subnet));
|
|
998
|
} else if (is_ipaddrv4($addr) && is_subnetv4($subnet)) {
|
|
999
|
list($ip, $mask) = explode('/', $subnet);
|
|
1000
|
$mask = (0xffffffff << (32 - $mask)) & 0xffffffff;
|
|
1001
|
return ((ip2long($addr) & $mask) == (ip2long($ip) & $mask));
|
|
1002
|
}
|
|
1003
|
return false;
|
|
1004
|
}
|
|
1005
|
|
|
1006
|
/* returns true if $hostname is just a valid hostname (top part without any of the domain part) */
|
|
1007
|
function is_unqualified_hostname($hostname) {
|
|
1008
|
if (!is_string($hostname)) {
|
|
1009
|
return false;
|
|
1010
|
}
|
|
1011
|
|
|
1012
|
if (preg_match('/^(?:[a-z0-9_]|[a-z0-9_][a-z0-9_\-]*[a-z0-9_])$/i', $hostname)) {
|
|
1013
|
return true;
|
|
1014
|
} else {
|
|
1015
|
return false;
|
|
1016
|
}
|
|
1017
|
}
|
|
1018
|
|
|
1019
|
/* returns true if $hostname is a valid hostname, with or without being a fully-qualified domain name. */
|
|
1020
|
function is_hostname($hostname, $allow_wildcard=false) {
|
|
1021
|
if (!is_string($hostname)) {
|
|
1022
|
return false;
|
|
1023
|
}
|
|
1024
|
|
|
1025
|
if (is_domain($hostname, $allow_wildcard)) {
|
|
1026
|
if ((substr_count($hostname, ".") == 1) && ($hostname[strlen($hostname)-1] == ".")) {
|
|
1027
|
/* Only a single dot at the end like "test." - hosts cannot be directly in the root domain. */
|
|
1028
|
return false;
|
|
1029
|
} else {
|
|
1030
|
return true;
|
|
1031
|
}
|
|
1032
|
} else {
|
|
1033
|
return false;
|
|
1034
|
}
|
|
1035
|
}
|
|
1036
|
|
|
1037
|
/* returns true if $domain is a valid domain name */
|
|
1038
|
function is_domain($domain, $allow_wildcard=false) {
|
|
1039
|
if (!is_string($domain)) {
|
|
1040
|
return false;
|
|
1041
|
}
|
|
1042
|
if ($allow_wildcard) {
|
|
1043
|
$domain_regex = '/^(?:(?:[a-z_0-9\*]|[a-z_0-9][a-z_0-9\-]*[a-z_0-9])\.)*(?:[a-z_0-9]|[a-z_0-9][a-z_0-9\-]*[a-z_0-9\.])$/i';
|
|
1044
|
} else {
|
|
1045
|
$domain_regex = '/^(?:(?:[a-z_0-9]|[a-z_0-9][a-z_0-9\-]*[a-z_0-9])\.)*(?:[a-z_0-9]|[a-z_0-9][a-z_0-9\-]*[a-z_0-9\.])$/i';
|
|
1046
|
}
|
|
1047
|
|
|
1048
|
if (preg_match($domain_regex, $domain)) {
|
|
1049
|
return true;
|
|
1050
|
} else {
|
|
1051
|
return false;
|
|
1052
|
}
|
|
1053
|
}
|
|
1054
|
|
|
1055
|
/* returns true if $macaddr is a valid MAC address */
|
|
1056
|
function is_macaddr($macaddr, $partial=false) {
|
|
1057
|
$repeat = ($partial) ? '1,5' : '5';
|
|
1058
|
return preg_match('/^[0-9A-F]{2}(?:[:][0-9A-F]{2}){'.$repeat.'}$/i', $macaddr) == 1 ? true : false;
|
|
1059
|
}
|
|
1060
|
|
|
1061
|
/*
|
|
1062
|
If $return_message is true then
|
|
1063
|
returns a text message about the reason that the name is invalid.
|
|
1064
|
the text includes the type of "thing" that is being checked, passed in $object. (e.g. "alias", "gateway group", "schedule")
|
|
1065
|
else
|
|
1066
|
returns true if $name is a valid name for an alias
|
|
1067
|
returns false if $name is not a valid name for an alias
|
|
1068
|
|
|
1069
|
Aliases cannot be:
|
|
1070
|
bad chars: anything except a-z 0-9 and underscore
|
|
1071
|
bad names: empty string, pure numeric, pure underscore
|
|
1072
|
reserved words: pre-defined service/protocol/port names which should not be ambiguous, and the words "port" and "pass" */
|
|
1073
|
|
|
1074
|
function is_validaliasname($name, $return_message = false, $object = "alias") {
|
|
1075
|
/* Array of reserved words */
|
|
1076
|
$reserved = array("port", "pass");
|
|
1077
|
|
|
1078
|
if (!is_string($name) || strlen($name) >= 32 || preg_match('/(^_*$|^\d*$|[^a-z0-9_])/i', $name)) {
|
|
1079
|
if ($return_message) {
|
|
1080
|
return sprintf(gettext('The %1$s name must be less than 32 characters long, may not consist of only numbers, may not consist of only underscores, and may only contain the following characters: %2$s'), $object, 'a-z, A-Z, 0-9, _');
|
|
1081
|
} else {
|
|
1082
|
return false;
|
|
1083
|
}
|
|
1084
|
}
|
|
1085
|
if (in_array($name, $reserved, true)) {
|
|
1086
|
if ($return_message) {
|
|
1087
|
return sprintf(gettext('The %1$s name must not be either of the reserved words %2$s or %3$s.'), $object, "'port'", "'pass'");
|
|
1088
|
} else {
|
|
1089
|
return false;
|
|
1090
|
}
|
|
1091
|
}
|
|
1092
|
if (getprotobyname($name)) {
|
|
1093
|
if ($return_message) {
|
|
1094
|
return sprintf(gettext('The %1$s name must not be a well-known IP protocol name such as TCP, UDP, ICMP etc.'), $object);
|
|
1095
|
} else {
|
|
1096
|
return false;
|
|
1097
|
}
|
|
1098
|
}
|
|
1099
|
if (getservbyname($name, "tcp") || getservbyname($name, "udp")) {
|
|
1100
|
if ($return_message) {
|
|
1101
|
return sprintf(gettext('The %1$s name must not be a well-known TCP or UDP port name such as ssh, smtp, pop3, tftp, http, openvpn etc.'), $object);
|
|
1102
|
} else {
|
|
1103
|
return false;
|
|
1104
|
}
|
|
1105
|
}
|
|
1106
|
if ($return_message) {
|
|
1107
|
return sprintf(gettext("The %1$s name is valid."), $object);
|
|
1108
|
} else {
|
|
1109
|
return true;
|
|
1110
|
}
|
|
1111
|
}
|
|
1112
|
|
|
1113
|
/* returns a text message indicating if the alias name is valid, or the reason it is not valid. */
|
|
1114
|
function invalidaliasnamemsg($name, $object = "alias") {
|
|
1115
|
return is_validaliasname($name, true, $object);
|
|
1116
|
}
|
|
1117
|
|
|
1118
|
/* returns true if $port is a valid TCP/UDP port */
|
|
1119
|
function is_port($port) {
|
|
1120
|
if (ctype_digit($port) && ((intval($port) >= 1) && (intval($port) <= 65535))) {
|
|
1121
|
return true;
|
|
1122
|
}
|
|
1123
|
if (getservbyname($port, "tcp") || getservbyname($port, "udp")) {
|
|
1124
|
return true;
|
|
1125
|
}
|
|
1126
|
return false;
|
|
1127
|
}
|
|
1128
|
|
|
1129
|
/* returns true if $portrange is a valid TCP/UDP portrange ("<port>:<port>") */
|
|
1130
|
function is_portrange($portrange) {
|
|
1131
|
$ports = explode(":", $portrange);
|
|
1132
|
|
|
1133
|
return (count($ports) == 2 && is_port($ports[0]) && is_port($ports[1]));
|
|
1134
|
}
|
|
1135
|
|
|
1136
|
/* returns true if $port is a valid port number or an alias thereof */
|
|
1137
|
function is_portoralias($port) {
|
|
1138
|
global $config;
|
|
1139
|
|
|
1140
|
if (is_alias($port)) {
|
|
1141
|
if (is_array($config['aliases']['alias'])) {
|
|
1142
|
foreach ($config['aliases']['alias'] as $alias) {
|
|
1143
|
if ($alias['name'] == $port && preg_match("/port/i", $alias['type'])) {
|
|
1144
|
return true;
|
|
1145
|
}
|
|
1146
|
}
|
|
1147
|
}
|
|
1148
|
return false;
|
|
1149
|
} else {
|
|
1150
|
return is_port($port);
|
|
1151
|
}
|
|
1152
|
}
|
|
1153
|
|
|
1154
|
/* create ranges of sequential port numbers (200:215) and remove duplicates */
|
|
1155
|
function group_ports($ports, $kflc = false) {
|
|
1156
|
if (!is_array($ports) || empty($ports)) {
|
|
1157
|
return;
|
|
1158
|
}
|
|
1159
|
|
|
1160
|
$uniq = array();
|
|
1161
|
$comments = array();
|
|
1162
|
foreach ($ports as $port) {
|
|
1163
|
if (($kflc) && (strpos($port, '#') === 0)) { // Keep Full Line Comments (lines beginning with #).
|
|
1164
|
$comments[] = $port;
|
|
1165
|
} else if (is_portrange($port)) {
|
|
1166
|
list($begin, $end) = explode(":", $port);
|
|
1167
|
if ($begin > $end) {
|
|
1168
|
$aux = $begin;
|
|
1169
|
$begin = $end;
|
|
1170
|
$end = $aux;
|
|
1171
|
}
|
|
1172
|
for ($i = $begin; $i <= $end; $i++) {
|
|
1173
|
if (!in_array($i, $uniq)) {
|
|
1174
|
$uniq[] = $i;
|
|
1175
|
}
|
|
1176
|
}
|
|
1177
|
} else if (is_port($port)) {
|
|
1178
|
if (!in_array($port, $uniq)) {
|
|
1179
|
$uniq[] = $port;
|
|
1180
|
}
|
|
1181
|
}
|
|
1182
|
}
|
|
1183
|
sort($uniq, SORT_NUMERIC);
|
|
1184
|
|
|
1185
|
$result = array();
|
|
1186
|
foreach ($uniq as $idx => $port) {
|
|
1187
|
if ($idx == 0) {
|
|
1188
|
$result[] = $port;
|
|
1189
|
continue;
|
|
1190
|
}
|
|
1191
|
|
|
1192
|
$last = end($result);
|
|
1193
|
if (is_portrange($last)) {
|
|
1194
|
list($begin, $end) = explode(":", $last);
|
|
1195
|
} else {
|
|
1196
|
$begin = $end = $last;
|
|
1197
|
}
|
|
1198
|
|
|
1199
|
if ($port == ($end+1)) {
|
|
1200
|
$end++;
|
|
1201
|
$result[count($result)-1] = "{$begin}:{$end}";
|
|
1202
|
} else {
|
|
1203
|
$result[] = $port;
|
|
1204
|
}
|
|
1205
|
}
|
|
1206
|
|
|
1207
|
return array_merge($comments, $result);
|
|
1208
|
}
|
|
1209
|
|
|
1210
|
/* returns true if $val is a valid shaper bandwidth value */
|
|
1211
|
function is_valid_shaperbw($val) {
|
|
1212
|
return (preg_match("/^(\d+(?:\.\d+)?)([MKG]?b|%)$/", $val));
|
|
1213
|
}
|
|
1214
|
|
|
1215
|
/* returns true if $test is in the range between $start and $end */
|
|
1216
|
function is_inrange_v4($test, $start, $end) {
|
|
1217
|
if ((ip2ulong($test) <= ip2ulong($end)) && (ip2ulong($test) >= ip2ulong($start))) {
|
|
1218
|
return true;
|
|
1219
|
} else {
|
|
1220
|
return false;
|
|
1221
|
}
|
|
1222
|
}
|
|
1223
|
|
|
1224
|
/* returns true if $test is in the range between $start and $end */
|
|
1225
|
function is_inrange_v6($test, $start, $end) {
|
|
1226
|
if ((inet_pton($test) <= inet_pton($end)) && (inet_pton($test) >= inet_pton($start))) {
|
|
1227
|
return true;
|
|
1228
|
} else {
|
|
1229
|
return false;
|
|
1230
|
}
|
|
1231
|
}
|
|
1232
|
|
|
1233
|
/* returns true if $test is in the range between $start and $end */
|
|
1234
|
function is_inrange($test, $start, $end) {
|
|
1235
|
return is_ipaddrv6($test) ? is_inrange_v6($test, $start, $end) : is_inrange_v4($test, $start, $end);
|
|
1236
|
}
|
|
1237
|
|
|
1238
|
function get_configured_vip_list($family = 'all', $type = VIP_ALL) {
|
|
1239
|
global $config;
|
|
1240
|
|
|
1241
|
$list = array();
|
|
1242
|
if (!is_array($config['virtualip']['vip']) || empty($config['virtualip']['vip'])) {
|
|
1243
|
return ($list);
|
|
1244
|
}
|
|
1245
|
|
|
1246
|
$viparr = &$config['virtualip']['vip'];
|
|
1247
|
foreach ($viparr as $vip) {
|
|
1248
|
|
|
1249
|
if ($type == VIP_CARP) {
|
|
1250
|
if ($vip['mode'] != "carp")
|
|
1251
|
continue;
|
|
1252
|
} elseif ($type == VIP_IPALIAS) {
|
|
1253
|
if ($vip['mode'] != "ipalias")
|
|
1254
|
continue;
|
|
1255
|
} else {
|
|
1256
|
if ($vip['mode'] != "carp" && $vip['mode'] != "ipalias")
|
|
1257
|
continue;
|
|
1258
|
}
|
|
1259
|
|
|
1260
|
if ($family == 'all' ||
|
|
1261
|
($family == 'inet' && is_ipaddrv4($vip['subnet'])) ||
|
|
1262
|
($family == 'inet6' && is_ipaddrv6($vip['subnet']))) {
|
|
1263
|
$list["_vip{$vip['uniqid']}"] = $vip['subnet'];
|
|
1264
|
}
|
|
1265
|
}
|
|
1266
|
return ($list);
|
|
1267
|
}
|
|
1268
|
|
|
1269
|
function get_configured_vip($vipinterface = '') {
|
|
1270
|
|
|
1271
|
return (get_configured_vip_detail($vipinterface, 'all', 'vip'));
|
|
1272
|
}
|
|
1273
|
|
|
1274
|
function get_configured_vip_interface($vipinterface = '') {
|
|
1275
|
|
|
1276
|
return (get_configured_vip_detail($vipinterface, 'all', 'iface'));
|
|
1277
|
}
|
|
1278
|
|
|
1279
|
function get_configured_vip_ipv4($vipinterface = '') {
|
|
1280
|
|
|
1281
|
return (get_configured_vip_detail($vipinterface, 'inet', 'ip'));
|
|
1282
|
}
|
|
1283
|
|
|
1284
|
function get_configured_vip_ipv6($vipinterface = '') {
|
|
1285
|
|
|
1286
|
return (get_configured_vip_detail($vipinterface, 'inet6', 'ip'));
|
|
1287
|
}
|
|
1288
|
|
|
1289
|
function get_configured_vip_subnetv4($vipinterface = '') {
|
|
1290
|
|
|
1291
|
return (get_configured_vip_detail($vipinterface, 'inet', 'subnet'));
|
|
1292
|
}
|
|
1293
|
|
|
1294
|
function get_configured_vip_subnetv6($vipinterface = '') {
|
|
1295
|
|
|
1296
|
return (get_configured_vip_detail($vipinterface, 'inet6', 'subnet'));
|
|
1297
|
}
|
|
1298
|
|
|
1299
|
function get_configured_vip_detail($vipinterface = '', $family = 'inet', $what = 'ip') {
|
|
1300
|
global $config;
|
|
1301
|
|
|
1302
|
if (empty($vipinterface) || !is_array($config['virtualip']['vip']) ||
|
|
1303
|
empty($config['virtualip']['vip'])) {
|
|
1304
|
return (NULL);
|
|
1305
|
}
|
|
1306
|
|
|
1307
|
$viparr = &$config['virtualip']['vip'];
|
|
1308
|
foreach ($viparr as $vip) {
|
|
1309
|
if ($vip['mode'] != "carp" && $vip['mode'] != "ipalias") {
|
|
1310
|
continue;
|
|
1311
|
}
|
|
1312
|
|
|
1313
|
if ($vipinterface != "_vip{$vip['uniqid']}") {
|
|
1314
|
continue;
|
|
1315
|
}
|
|
1316
|
|
|
1317
|
switch ($what) {
|
|
1318
|
case 'subnet':
|
|
1319
|
if ($family == 'inet' && is_ipaddrv4($vip['subnet']))
|
|
1320
|
return ($vip['subnet_bits']);
|
|
1321
|
else if ($family == 'inet6' && is_ipaddrv6($vip['subnet']))
|
|
1322
|
return ($vip['subnet_bits']);
|
|
1323
|
break;
|
|
1324
|
case 'iface':
|
|
1325
|
return ($vip['interface']);
|
|
1326
|
break;
|
|
1327
|
case 'vip':
|
|
1328
|
return ($vip);
|
|
1329
|
break;
|
|
1330
|
case 'ip':
|
|
1331
|
default:
|
|
1332
|
if ($family == 'inet' && is_ipaddrv4($vip['subnet'])) {
|
|
1333
|
return ($vip['subnet']);
|
|
1334
|
} else if ($family == 'inet6' && is_ipaddrv6($vip['subnet'])) {
|
|
1335
|
return ($vip['subnet']);
|
|
1336
|
}
|
|
1337
|
break;
|
|
1338
|
}
|
|
1339
|
break;
|
|
1340
|
}
|
|
1341
|
|
|
1342
|
return (NULL);
|
|
1343
|
}
|
|
1344
|
|
|
1345
|
/* comparison function for sorting by the order in which interfaces are normally created */
|
|
1346
|
function compare_interface_friendly_names($a, $b) {
|
|
1347
|
if ($a == $b) {
|
|
1348
|
return 0;
|
|
1349
|
} else if ($a == 'wan') {
|
|
1350
|
return -1;
|
|
1351
|
} else if ($b == 'wan') {
|
|
1352
|
return 1;
|
|
1353
|
} else if ($a == 'lan') {
|
|
1354
|
return -1;
|
|
1355
|
} else if ($b == 'lan') {
|
|
1356
|
return 1;
|
|
1357
|
}
|
|
1358
|
|
|
1359
|
return strnatcmp($a, $b);
|
|
1360
|
}
|
|
1361
|
|
|
1362
|
/* return the configured interfaces list. */
|
|
1363
|
function get_configured_interface_list($only_opt = false, $withdisabled = false) {
|
|
1364
|
global $config;
|
|
1365
|
|
|
1366
|
$iflist = array();
|
|
1367
|
|
|
1368
|
/* if list */
|
|
1369
|
foreach ($config['interfaces'] as $if => $ifdetail) {
|
|
1370
|
if ($only_opt && ($if == "wan" || $if == "lan")) {
|
|
1371
|
continue;
|
|
1372
|
}
|
|
1373
|
if (isset($ifdetail['enable']) || $withdisabled == true) {
|
|
1374
|
$iflist[$if] = $if;
|
|
1375
|
}
|
|
1376
|
}
|
|
1377
|
|
|
1378
|
return $iflist;
|
|
1379
|
}
|
|
1380
|
|
|
1381
|
/* return the configured interfaces list. */
|
|
1382
|
function get_configured_interface_list_by_realif($only_opt = false, $withdisabled = false) {
|
|
1383
|
global $config;
|
|
1384
|
|
|
1385
|
$iflist = array();
|
|
1386
|
|
|
1387
|
/* if list */
|
|
1388
|
foreach ($config['interfaces'] as $if => $ifdetail) {
|
|
1389
|
if ($only_opt && ($if == "wan" || $if == "lan")) {
|
|
1390
|
continue;
|
|
1391
|
}
|
|
1392
|
if (isset($ifdetail['enable']) || $withdisabled == true) {
|
|
1393
|
$tmpif = get_real_interface($if);
|
|
1394
|
if (!empty($tmpif)) {
|
|
1395
|
$iflist[$tmpif] = $if;
|
|
1396
|
}
|
|
1397
|
}
|
|
1398
|
}
|
|
1399
|
|
|
1400
|
return $iflist;
|
|
1401
|
}
|
|
1402
|
|
|
1403
|
/* return the configured interfaces list with their description. */
|
|
1404
|
function get_configured_interface_with_descr($only_opt = false, $withdisabled = false) {
|
|
1405
|
global $config;
|
|
1406
|
|
|
1407
|
$iflist = array();
|
|
1408
|
|
|
1409
|
/* if list */
|
|
1410
|
foreach ($config['interfaces'] as $if => $ifdetail) {
|
|
1411
|
if ($only_opt && ($if == "wan" || $if == "lan")) {
|
|
1412
|
continue;
|
|
1413
|
}
|
|
1414
|
if (isset($ifdetail['enable']) || $withdisabled == true) {
|
|
1415
|
if (empty($ifdetail['descr'])) {
|
|
1416
|
$iflist[$if] = strtoupper($if);
|
|
1417
|
} else {
|
|
1418
|
$iflist[$if] = strtoupper($ifdetail['descr']);
|
|
1419
|
}
|
|
1420
|
}
|
|
1421
|
}
|
|
1422
|
|
|
1423
|
return $iflist;
|
|
1424
|
}
|
|
1425
|
|
|
1426
|
/*
|
|
1427
|
* get_configured_ip_addresses() - Return a list of all configured
|
|
1428
|
* IPv4 addresses.
|
|
1429
|
*
|
|
1430
|
*/
|
|
1431
|
function get_configured_ip_addresses() {
|
|
1432
|
global $config;
|
|
1433
|
|
|
1434
|
if (!function_exists('get_interface_ip')) {
|
|
1435
|
require_once("interfaces.inc");
|
|
1436
|
}
|
|
1437
|
$ip_array = array();
|
|
1438
|
$interfaces = get_configured_interface_list();
|
|
1439
|
if (is_array($interfaces)) {
|
|
1440
|
foreach ($interfaces as $int) {
|
|
1441
|
$ipaddr = get_interface_ip($int);
|
|
1442
|
$ip_array[$int] = $ipaddr;
|
|
1443
|
}
|
|
1444
|
}
|
|
1445
|
$interfaces = get_configured_vip_list('inet');
|
|
1446
|
if (is_array($interfaces)) {
|
|
1447
|
foreach ($interfaces as $int => $ipaddr) {
|
|
1448
|
$ip_array[$int] = $ipaddr;
|
|
1449
|
}
|
|
1450
|
}
|
|
1451
|
|
|
1452
|
/* pppoe server */
|
|
1453
|
if (is_array($config['pppoes']) && is_array($config['pppoes']['pppoe'])) {
|
|
1454
|
foreach ($config['pppoes']['pppoe'] as $pppoe) {
|
|
1455
|
if ($pppoe['mode'] == "server") {
|
|
1456
|
if (is_ipaddr($pppoe['localip'])) {
|
|
1457
|
$int = "pppoes". $pppoe['pppoeid'];
|
|
1458
|
$ip_array[$int] = $pppoe['localip'];
|
|
1459
|
}
|
|
1460
|
}
|
|
1461
|
}
|
|
1462
|
}
|
|
1463
|
|
|
1464
|
return $ip_array;
|
|
1465
|
}
|
|
1466
|
|
|
1467
|
/*
|
|
1468
|
* get_configured_ipv6_addresses() - Return a list of all configured
|
|
1469
|
* IPv6 addresses.
|
|
1470
|
*
|
|
1471
|
*/
|
|
1472
|
function get_configured_ipv6_addresses($linklocal_fallback = false) {
|
|
1473
|
require_once("interfaces.inc");
|
|
1474
|
$ipv6_array = array();
|
|
1475
|
$interfaces = get_configured_interface_list();
|
|
1476
|
if (is_array($interfaces)) {
|
|
1477
|
foreach ($interfaces as $int) {
|
|
1478
|
$ipaddrv6 = get_interface_ipv6($int, false, $linklocal_fallback);
|
|
1479
|
$ipv6_array[$int] = $ipaddrv6;
|
|
1480
|
}
|
|
1481
|
}
|
|
1482
|
$interfaces = get_configured_vip_list('inet6');
|
|
1483
|
if (is_array($interfaces)) {
|
|
1484
|
foreach ($interfaces as $int => $ipaddrv6) {
|
|
1485
|
$ipv6_array[$int] = $ipaddrv6;
|
|
1486
|
}
|
|
1487
|
}
|
|
1488
|
return $ipv6_array;
|
|
1489
|
}
|
|
1490
|
|
|
1491
|
/*
|
|
1492
|
* get_interface_list() - Return a list of all physical interfaces
|
|
1493
|
* along with MAC and status.
|
|
1494
|
*
|
|
1495
|
* $mode = "active" - use ifconfig -lu
|
|
1496
|
* "media" - use ifconfig to check physical connection
|
|
1497
|
* status (much slower)
|
|
1498
|
*/
|
|
1499
|
function get_interface_list($mode = "active", $keyby = "physical", $vfaces = "") {
|
|
1500
|
global $config;
|
|
1501
|
$upints = array();
|
|
1502
|
/* get a list of virtual interface types */
|
|
1503
|
if (!$vfaces) {
|
|
1504
|
$vfaces = array(
|
|
1505
|
'bridge',
|
|
1506
|
'ppp',
|
|
1507
|
'pppoe',
|
|
1508
|
'pptp',
|
|
1509
|
'l2tp',
|
|
1510
|
'sl',
|
|
1511
|
'gif',
|
|
1512
|
'gre',
|
|
1513
|
'faith',
|
|
1514
|
'lo',
|
|
1515
|
'ng',
|
|
1516
|
'_vlan',
|
|
1517
|
'_wlan',
|
|
1518
|
'pflog',
|
|
1519
|
'plip',
|
|
1520
|
'pfsync',
|
|
1521
|
'enc',
|
|
1522
|
'tun',
|
|
1523
|
'lagg',
|
|
1524
|
'vip',
|
|
1525
|
'ipfw'
|
|
1526
|
);
|
|
1527
|
}
|
|
1528
|
switch ($mode) {
|
|
1529
|
case "active":
|
|
1530
|
$upints = pfSense_interface_listget(IFF_UP);
|
|
1531
|
break;
|
|
1532
|
case "media":
|
|
1533
|
$intlist = pfSense_interface_listget();
|
|
1534
|
$ifconfig = "";
|
|
1535
|
exec("/sbin/ifconfig -a", $ifconfig);
|
|
1536
|
$regexp = '/(' . implode('|', $intlist) . '):\s/';
|
|
1537
|
$ifstatus = preg_grep('/status:/', $ifconfig);
|
|
1538
|
foreach ($ifstatus as $status) {
|
|
1539
|
$int = array_shift($intlist);
|
|
1540
|
if (stristr($status, "active")) {
|
|
1541
|
$upints[] = $int;
|
|
1542
|
}
|
|
1543
|
}
|
|
1544
|
break;
|
|
1545
|
default:
|
|
1546
|
$upints = pfSense_interface_listget();
|
|
1547
|
break;
|
|
1548
|
}
|
|
1549
|
/* build interface list with netstat */
|
|
1550
|
$linkinfo = "";
|
|
1551
|
exec("/usr/bin/netstat -inW -f link | awk '{ print $1, $4 }'", $linkinfo);
|
|
1552
|
array_shift($linkinfo);
|
|
1553
|
/* build ip address list with netstat */
|
|
1554
|
$ipinfo = "";
|
|
1555
|
exec("/usr/bin/netstat -inW -f inet | awk '{ print $1, $4 }'", $ipinfo);
|
|
1556
|
array_shift($ipinfo);
|
|
1557
|
foreach ($linkinfo as $link) {
|
|
1558
|
$friendly = "";
|
|
1559
|
$alink = explode(" ", $link);
|
|
1560
|
$ifname = rtrim(trim($alink[0]), '*');
|
|
1561
|
/* trim out all numbers before checking for vfaces */
|
|
1562
|
if (!in_array(array_shift(preg_split('/\d/', $ifname)), $vfaces) &&
|
|
1563
|
!stristr($ifname, "_vlan") && !stristr($ifname, "_wlan")) {
|
|
1564
|
$toput = array(
|
|
1565
|
"mac" => trim($alink[1]),
|
|
1566
|
"up" => in_array($ifname, $upints)
|
|
1567
|
);
|
|
1568
|
foreach ($ipinfo as $ip) {
|
|
1569
|
$aip = explode(" ", $ip);
|
|
1570
|
if ($aip[0] == $ifname) {
|
|
1571
|
$toput['ipaddr'] = $aip[1];
|
|
1572
|
}
|
|
1573
|
}
|
|
1574
|
if (is_array($config['interfaces'])) {
|
|
1575
|
foreach ($config['interfaces'] as $name => $int) {
|
|
1576
|
if ($int['if'] == $ifname) {
|
|
1577
|
$friendly = $name;
|
|
1578
|
}
|
|
1579
|
}
|
|
1580
|
}
|
|
1581
|
switch ($keyby) {
|
|
1582
|
case "physical":
|
|
1583
|
if ($friendly != "") {
|
|
1584
|
$toput['friendly'] = $friendly;
|
|
1585
|
}
|
|
1586
|
$dmesg_arr = array();
|
|
1587
|
exec("/sbin/dmesg |grep $ifname | head -n1", $dmesg_arr);
|
|
1588
|
preg_match_all("/<(.*?)>/i", $dmesg_arr[0], $dmesg);
|
|
1589
|
$toput['dmesg'] = $dmesg[1][0];
|
|
1590
|
$iflist[$ifname] = $toput;
|
|
1591
|
break;
|
|
1592
|
case "ppp":
|
|
1593
|
|
|
1594
|
case "friendly":
|
|
1595
|
if ($friendly != "") {
|
|
1596
|
$toput['if'] = $ifname;
|
|
1597
|
$iflist[$friendly] = $toput;
|
|
1598
|
}
|
|
1599
|
break;
|
|
1600
|
}
|
|
1601
|
}
|
|
1602
|
}
|
|
1603
|
return $iflist;
|
|
1604
|
}
|
|
1605
|
|
|
1606
|
/****f* util/log_error
|
|
1607
|
* NAME
|
|
1608
|
* log_error - Sends a string to syslog.
|
|
1609
|
* INPUTS
|
|
1610
|
* $error - string containing the syslog message.
|
|
1611
|
* RESULT
|
|
1612
|
* null
|
|
1613
|
******/
|
|
1614
|
function log_error($error) {
|
|
1615
|
global $g;
|
|
1616
|
$page = $_SERVER['SCRIPT_NAME'];
|
|
1617
|
if (empty($page)) {
|
|
1618
|
$files = get_included_files();
|
|
1619
|
$page = basename($files[0]);
|
|
1620
|
}
|
|
1621
|
syslog(LOG_ERR, "$page: $error");
|
|
1622
|
if ($g['debug']) {
|
|
1623
|
syslog(LOG_WARNING, var_dump(debug_backtrace()));
|
|
1624
|
}
|
|
1625
|
return;
|
|
1626
|
}
|
|
1627
|
|
|
1628
|
/****f* util/log_auth
|
|
1629
|
* NAME
|
|
1630
|
* log_auth - Sends a string to syslog as LOG_AUTH facility
|
|
1631
|
* INPUTS
|
|
1632
|
* $error - string containing the syslog message.
|
|
1633
|
* RESULT
|
|
1634
|
* null
|
|
1635
|
******/
|
|
1636
|
function log_auth($error) {
|
|
1637
|
global $g;
|
|
1638
|
$page = $_SERVER['SCRIPT_NAME'];
|
|
1639
|
syslog(LOG_AUTH, "$page: $error");
|
|
1640
|
if ($g['debug']) {
|
|
1641
|
syslog(LOG_WARNING, var_dump(debug_backtrace()));
|
|
1642
|
}
|
|
1643
|
return;
|
|
1644
|
}
|
|
1645
|
|
|
1646
|
/****f* util/exec_command
|
|
1647
|
* NAME
|
|
1648
|
* exec_command - Execute a command and return a string of the result.
|
|
1649
|
* INPUTS
|
|
1650
|
* $command - String of the command to be executed.
|
|
1651
|
* RESULT
|
|
1652
|
* String containing the command's result.
|
|
1653
|
* NOTES
|
|
1654
|
* This function returns the command's stdout and stderr.
|
|
1655
|
******/
|
|
1656
|
function exec_command($command) {
|
|
1657
|
$output = array();
|
|
1658
|
exec($command . ' 2>&1', $output);
|
|
1659
|
return(implode("\n", $output));
|
|
1660
|
}
|
|
1661
|
|
|
1662
|
/* wrapper for exec()
|
|
1663
|
Executes in background or foreground.
|
|
1664
|
For background execution, returns PID of background process to allow calling code control */
|
|
1665
|
function mwexec($command, $nologentry = false, $clearsigmask = false, $background = false) {
|
|
1666
|
global $g;
|
|
1667
|
$retval = 0;
|
|
1668
|
|
|
1669
|
if ($g['debug']) {
|
|
1670
|
if (!$_SERVER['REMOTE_ADDR']) {
|
|
1671
|
echo "mwexec(): $command" . ($background ? " [BG]":"") . "\n";
|
|
1672
|
}
|
|
1673
|
}
|
|
1674
|
if ($clearsigmask) {
|
|
1675
|
$oldset = array();
|
|
1676
|
pcntl_sigprocmask(SIG_SETMASK, array(), $oldset);
|
|
1677
|
}
|
|
1678
|
|
|
1679
|
if ($background) {
|
|
1680
|
// start background process and return PID
|
|
1681
|
$retval = exec("/usr/bin/nohup $command > /dev/null 2>&1 & echo $!");
|
|
1682
|
} else {
|
|
1683
|
// run in foreground, and (optionally) log if nonzero return
|
|
1684
|
$outputarray = array();
|
|
1685
|
exec("$command 2>&1", $outputarray, $retval);
|
|
1686
|
if (($retval <> 0) && (!$nologentry || isset($config['system']['developerspew']))) {
|
|
1687
|
log_error(sprintf(gettext("The command '%1\$s' returned exit code '%2\$d', the output was '%3\$s' "), $command, $retval, implode(" ", $outputarray)));
|
|
1688
|
}
|
|
1689
|
}
|
|
1690
|
|
|
1691
|
if ($clearsigmask) {
|
|
1692
|
pcntl_sigprocmask(SIG_SETMASK, $oldset);
|
|
1693
|
}
|
|
1694
|
|
|
1695
|
return $retval;
|
|
1696
|
}
|
|
1697
|
|
|
1698
|
/* wrapper for exec() in background */
|
|
1699
|
function mwexec_bg($command, $clearsigmask = false) {
|
|
1700
|
return mwexec($command, false, $clearsigmask, true);
|
|
1701
|
}
|
|
1702
|
|
|
1703
|
/* unlink a file, or pattern-match of a file, if it exists
|
|
1704
|
if the file/path contains glob() compatible wildcards, all matching files will be unlinked
|
|
1705
|
if no matches, no error occurs */
|
|
1706
|
function unlink_if_exists($fn) {
|
|
1707
|
$to_do = glob($fn);
|
|
1708
|
if (is_array($to_do) && count($to_do) > 0) {
|
|
1709
|
@array_map("unlink", $to_do);
|
|
1710
|
} else {
|
|
1711
|
@unlink($fn);
|
|
1712
|
}
|
|
1713
|
}
|
|
1714
|
/* make a global alias table (for faster lookups) */
|
|
1715
|
function alias_make_table($config) {
|
|
1716
|
global $aliastable;
|
|
1717
|
|
|
1718
|
$aliastable = array();
|
|
1719
|
|
|
1720
|
if (is_array($config['aliases']['alias'])) {
|
|
1721
|
foreach ($config['aliases']['alias'] as $alias) {
|
|
1722
|
if ($alias['name']) {
|
|
1723
|
$aliastable[$alias['name']] = $alias['address'];
|
|
1724
|
}
|
|
1725
|
}
|
|
1726
|
}
|
|
1727
|
}
|
|
1728
|
|
|
1729
|
/* check if an alias exists */
|
|
1730
|
function is_alias($name) {
|
|
1731
|
global $aliastable;
|
|
1732
|
|
|
1733
|
return isset($aliastable[$name]);
|
|
1734
|
}
|
|
1735
|
|
|
1736
|
function alias_get_type($name) {
|
|
1737
|
global $config;
|
|
1738
|
|
|
1739
|
if (is_array($config['aliases']['alias'])) {
|
|
1740
|
foreach ($config['aliases']['alias'] as $alias) {
|
|
1741
|
if ($name == $alias['name']) {
|
|
1742
|
return $alias['type'];
|
|
1743
|
}
|
|
1744
|
}
|
|
1745
|
}
|
|
1746
|
|
|
1747
|
return "";
|
|
1748
|
}
|
|
1749
|
|
|
1750
|
/* expand a host or network alias, if necessary */
|
|
1751
|
function alias_expand($name) {
|
|
1752
|
global $config, $aliastable;
|
|
1753
|
$urltable_prefix = "/var/db/aliastables/";
|
|
1754
|
$urltable_filename = $urltable_prefix . $name . ".txt";
|
|
1755
|
|
|
1756
|
if (isset($aliastable[$name])) {
|
|
1757
|
// alias names cannot be strictly numeric. redmine #4289
|
|
1758
|
if (is_numericint($name)) {
|
|
1759
|
return null;
|
|
1760
|
}
|
|
1761
|
// make sure if it's a ports alias, it actually exists. redmine #5845
|
|
1762
|
foreach ($config['aliases']['alias'] as $alias) {
|
|
1763
|
if ($alias['name'] == $name) {
|
|
1764
|
if ($alias['type'] == "urltable_ports") {
|
|
1765
|
if (is_URL($alias['url']) && file_exists($urltable_filename) && filesize($urltable_filename)) {
|
|
1766
|
return "\${$name}";
|
|
1767
|
} else {
|
|
1768
|
return null;
|
|
1769
|
}
|
|
1770
|
}
|
|
1771
|
}
|
|
1772
|
}
|
|
1773
|
return "\${$name}";
|
|
1774
|
} else if (is_ipaddr($name) || is_subnet($name) || is_port($name) || is_portrange($name)) {
|
|
1775
|
return "{$name}";
|
|
1776
|
} else {
|
|
1777
|
return null;
|
|
1778
|
}
|
|
1779
|
}
|
|
1780
|
|
|
1781
|
function alias_expand_urltable($name) {
|
|
1782
|
global $config;
|
|
1783
|
$urltable_prefix = "/var/db/aliastables/";
|
|
1784
|
$urltable_filename = $urltable_prefix . $name . ".txt";
|
|
1785
|
|
|
1786
|
if (is_array($config['aliases']['alias'])) {
|
|
1787
|
foreach ($config['aliases']['alias'] as $alias) {
|
|
1788
|
if (preg_match("/urltable/i", $alias['type']) && ($alias['name'] == $name)) {
|
|
1789
|
if (is_URL($alias["url"]) && file_exists($urltable_filename) && filesize($urltable_filename)) {
|
|
1790
|
return $urltable_filename;
|
|
1791
|
} else {
|
|
1792
|
send_event("service sync alias {$name}");
|
|
1793
|
break;
|
|
1794
|
}
|
|
1795
|
}
|
|
1796
|
}
|
|
1797
|
}
|
|
1798
|
return null;
|
|
1799
|
}
|
|
1800
|
|
|
1801
|
/* obtain MAC address given an IP address by looking at the ARP table */
|
|
1802
|
function arp_get_mac_by_ip($ip) {
|
|
1803
|
mwexec("/sbin/ping -c 1 -t 1 " . escapeshellarg($ip), true);
|
|
1804
|
$arpoutput = "";
|
|
1805
|
exec("/usr/sbin/arp -n " . escapeshellarg($ip), $arpoutput);
|
|
1806
|
|
|
1807
|
if ($arpoutput[0]) {
|
|
1808
|
$arpi = explode(" ", $arpoutput[0]);
|
|
1809
|
$macaddr = $arpi[3];
|
|
1810
|
if (is_macaddr($macaddr)) {
|
|
1811
|
return $macaddr;
|
|
1812
|
} else {
|
|
1813
|
return false;
|
|
1814
|
}
|
|
1815
|
}
|
|
1816
|
|
|
1817
|
return false;
|
|
1818
|
}
|
|
1819
|
|
|
1820
|
/* return a fieldname that is safe for xml usage */
|
|
1821
|
function xml_safe_fieldname($fieldname) {
|
|
1822
|
$replace = array('/', '-', ' ', '!', '@', '#', '$', '%', '^', '&', '*', '(', ')',
|
|
1823
|
'_', '+', '=', '{', '}', '[', ']', '|', '/', '<', '>', '?',
|
|
1824
|
':', ',', '.', '\'', '\\'
|
|
1825
|
);
|
|
1826
|
return strtolower(str_replace($replace, "", $fieldname));
|
|
1827
|
}
|
|
1828
|
|
|
1829
|
function mac_format($clientmac) {
|
|
1830
|
global $config, $cpzone;
|
|
1831
|
|
|
1832
|
$mac = explode(":", $clientmac);
|
|
1833
|
$mac_format = $cpzone ? $config['captiveportal'][$cpzone]['radmac_format'] : false;
|
|
1834
|
|
|
1835
|
switch ($mac_format) {
|
|
1836
|
case 'singledash':
|
|
1837
|
return "$mac[0]$mac[1]$mac[2]-$mac[3]$mac[4]$mac[5]";
|
|
1838
|
|
|
1839
|
case 'ietf':
|
|
1840
|
return "$mac[0]-$mac[1]-$mac[2]-$mac[3]-$mac[4]-$mac[5]";
|
|
1841
|
|
|
1842
|
case 'cisco':
|
|
1843
|
return "$mac[0]$mac[1].$mac[2]$mac[3].$mac[4]$mac[5]";
|
|
1844
|
|
|
1845
|
case 'unformatted':
|
|
1846
|
return "$mac[0]$mac[1]$mac[2]$mac[3]$mac[4]$mac[5]";
|
|
1847
|
|
|
1848
|
default:
|
|
1849
|
return $clientmac;
|
|
1850
|
}
|
|
1851
|
}
|
|
1852
|
|
|
1853
|
function resolve_retry($hostname, $retries = 5) {
|
|
1854
|
|
|
1855
|
if (is_ipaddr($hostname)) {
|
|
1856
|
return $hostname;
|
|
1857
|
}
|
|
1858
|
|
|
1859
|
for ($i = 0; $i < $retries; $i++) {
|
|
1860
|
// FIXME: gethostbyname does not work for AAAA hostnames, boo, hiss
|
|
1861
|
$ip = gethostbyname($hostname);
|
|
1862
|
|
|
1863
|
if ($ip && $ip != $hostname) {
|
|
1864
|
/* success */
|
|
1865
|
return $ip;
|
|
1866
|
}
|
|
1867
|
|
|
1868
|
sleep(1);
|
|
1869
|
}
|
|
1870
|
|
|
1871
|
return false;
|
|
1872
|
}
|
|
1873
|
|
|
1874
|
function format_bytes($bytes) {
|
|
1875
|
if ($bytes >= 1099511627776) {
|
|
1876
|
return sprintf("%.2f TiB", $bytes/1099511627776);
|
|
1877
|
} else if ($bytes >= 1073741824) {
|
|
1878
|
return sprintf("%.2f GiB", $bytes/1073741824);
|
|
1879
|
} else if ($bytes >= 1048576) {
|
|
1880
|
return sprintf("%.2f MiB", $bytes/1048576);
|
|
1881
|
} else if ($bytes >= 1024) {
|
|
1882
|
return sprintf("%.0f KiB", $bytes/1024);
|
|
1883
|
} else {
|
|
1884
|
return sprintf("%d B", $bytes);
|
|
1885
|
}
|
|
1886
|
}
|
|
1887
|
|
|
1888
|
function format_number($num, $precision = 3) {
|
|
1889
|
$units = array('', 'K', 'M', 'G', 'T');
|
|
1890
|
|
|
1891
|
$i = 0;
|
|
1892
|
while ($num > 1000 && $i < count($units)) {
|
|
1893
|
$num /= 1000;
|
|
1894
|
$i++;
|
|
1895
|
}
|
|
1896
|
round($num, $precision);
|
|
1897
|
|
|
1898
|
return ("$num {$units[$i]}");
|
|
1899
|
}
|
|
1900
|
|
|
1901
|
function update_filter_reload_status($text) {
|
|
1902
|
global $g;
|
|
1903
|
|
|
1904
|
file_put_contents("{$g['varrun_path']}/filter_reload_status", $text);
|
|
1905
|
}
|
|
1906
|
|
|
1907
|
/****** util/return_dir_as_array
|
|
1908
|
* NAME
|
|
1909
|
* return_dir_as_array - Return a directory's contents as an array.
|
|
1910
|
* INPUTS
|
|
1911
|
* $dir - string containing the path to the desired directory.
|
|
1912
|
* $filter_regex - string containing a regular expression to filter file names. Default empty.
|
|
1913
|
* RESULT
|
|
1914
|
* $dir_array - array containing the directory's contents. This array will be empty if the path specified is invalid.
|
|
1915
|
******/
|
|
1916
|
function return_dir_as_array($dir, $filter_regex = '') {
|
|
1917
|
$dir_array = array();
|
|
1918
|
if (is_dir($dir)) {
|
|
1919
|
if ($dh = opendir($dir)) {
|
|
1920
|
while (($file = readdir($dh)) !== false) {
|
|
1921
|
if (($file == ".") || ($file == "..")) {
|
|
1922
|
continue;
|
|
1923
|
}
|
|
1924
|
|
|
1925
|
if (empty($filter_regex) || preg_match($filter_regex, $file)) {
|
|
1926
|
array_push($dir_array, $file);
|
|
1927
|
}
|
|
1928
|
}
|
|
1929
|
closedir($dh);
|
|
1930
|
}
|
|
1931
|
}
|
|
1932
|
return $dir_array;
|
|
1933
|
}
|
|
1934
|
|
|
1935
|
function run_plugins($directory) {
|
|
1936
|
global $config, $g;
|
|
1937
|
|
|
1938
|
/* process packager manager custom rules */
|
|
1939
|
$files = return_dir_as_array($directory);
|
|
1940
|
if (is_array($files)) {
|
|
1941
|
foreach ($files as $file) {
|
|
1942
|
if (stristr($file, ".sh") == true) {
|
|
1943
|
mwexec($directory . $file . " start");
|
|
1944
|
} else if (!is_dir($directory . "/" . $file) && stristr($file, ".inc")) {
|
|
1945
|
require_once($directory . "/" . $file);
|
|
1946
|
}
|
|
1947
|
}
|
|
1948
|
}
|
|
1949
|
}
|
|
1950
|
|
|
1951
|
/*
|
|
1952
|
* safe_mkdir($path, $mode = 0755)
|
|
1953
|
* create directory if it doesn't already exist and isn't a file!
|
|
1954
|
*/
|
|
1955
|
function safe_mkdir($path, $mode = 0755) {
|
|
1956
|
global $g;
|
|
1957
|
|
|
1958
|
if (!is_file($path) && !is_dir($path)) {
|
|
1959
|
return @mkdir($path, $mode, true);
|
|
1960
|
} else {
|
|
1961
|
return false;
|
|
1962
|
}
|
|
1963
|
}
|
|
1964
|
|
|
1965
|
/*
|
|
1966
|
* get_sysctl($names)
|
|
1967
|
* Get values of sysctl OID's listed in $names (accepts an array or a single
|
|
1968
|
* name) and return an array of key/value pairs set for those that exist
|
|
1969
|
*/
|
|
1970
|
function get_sysctl($names) {
|
|
1971
|
if (empty($names)) {
|
|
1972
|
return array();
|
|
1973
|
}
|
|
1974
|
|
|
1975
|
if (is_array($names)) {
|
|
1976
|
$name_list = array();
|
|
1977
|
foreach ($names as $name) {
|
|
1978
|
$name_list[] = escapeshellarg($name);
|
|
1979
|
}
|
|
1980
|
} else {
|
|
1981
|
$name_list = array(escapeshellarg($names));
|
|
1982
|
}
|
|
1983
|
|
|
1984
|
exec("/sbin/sysctl -i " . implode(" ", $name_list), $output);
|
|
1985
|
$values = array();
|
|
1986
|
foreach ($output as $line) {
|
|
1987
|
$line = explode(": ", $line, 2);
|
|
1988
|
if (count($line) == 2) {
|
|
1989
|
$values[$line[0]] = $line[1];
|
|
1990
|
}
|
|
1991
|
}
|
|
1992
|
|
|
1993
|
return $values;
|
|
1994
|
}
|
|
1995
|
|
|
1996
|
/*
|
|
1997
|
* get_single_sysctl($name)
|
|
1998
|
* Wrapper for get_sysctl() to simplify read of a single sysctl value
|
|
1999
|
* return the value for sysctl $name or empty string if it doesn't exist
|
|
2000
|
*/
|
|
2001
|
function get_single_sysctl($name) {
|
|
2002
|
if (empty($name)) {
|
|
2003
|
return "";
|
|
2004
|
}
|
|
2005
|
|
|
2006
|
$value = get_sysctl($name);
|
|
2007
|
if (empty($value) || !isset($value[$name])) {
|
|
2008
|
return "";
|
|
2009
|
}
|
|
2010
|
|
|
2011
|
return $value[$name];
|
|
2012
|
}
|
|
2013
|
|
|
2014
|
/*
|
|
2015
|
* set_sysctl($value_list)
|
|
2016
|
* Set sysctl OID's listed as key/value pairs and return
|
|
2017
|
* an array with keys set for those that succeeded
|
|
2018
|
*/
|
|
2019
|
function set_sysctl($values) {
|
|
2020
|
if (empty($values)) {
|
|
2021
|
return array();
|
|
2022
|
}
|
|
2023
|
|
|
2024
|
$value_list = array();
|
|
2025
|
foreach ($values as $key => $value) {
|
|
2026
|
$value_list[] = escapeshellarg($key) . "=" . escapeshellarg($value);
|
|
2027
|
}
|
|
2028
|
|
|
2029
|
exec("/sbin/sysctl -i " . implode(" ", $value_list), $output, $success);
|
|
2030
|
|
|
2031
|
/* Retry individually if failed (one or more read-only) */
|
|
2032
|
if ($success <> 0 && count($value_list) > 1) {
|
|
2033
|
foreach ($value_list as $value) {
|
|
2034
|
exec("/sbin/sysctl -i " . $value, $output);
|
|
2035
|
}
|
|
2036
|
}
|
|
2037
|
|
|
2038
|
$ret = array();
|
|
2039
|
foreach ($output as $line) {
|
|
2040
|
$line = explode(": ", $line, 2);
|
|
2041
|
if (count($line) == 2) {
|
|
2042
|
$ret[$line[0]] = true;
|
|
2043
|
}
|
|
2044
|
}
|
|
2045
|
|
|
2046
|
return $ret;
|
|
2047
|
}
|
|
2048
|
|
|
2049
|
/*
|
|
2050
|
* set_single_sysctl($name, $value)
|
|
2051
|
* Wrapper to set_sysctl() to make it simple to set only one sysctl
|
|
2052
|
* returns boolean meaning if it succeeded
|
|
2053
|
*/
|
|
2054
|
function set_single_sysctl($name, $value) {
|
|
2055
|
if (empty($name)) {
|
|
2056
|
return false;
|
|
2057
|
}
|
|
2058
|
|
|
2059
|
$result = set_sysctl(array($name => $value));
|
|
2060
|
|
|
2061
|
if (!isset($result[$name]) || $result[$name] != $value) {
|
|
2062
|
return false;
|
|
2063
|
}
|
|
2064
|
|
|
2065
|
return true;
|
|
2066
|
}
|
|
2067
|
|
|
2068
|
/*
|
|
2069
|
* get_memory()
|
|
2070
|
* returns an array listing the amount of
|
|
2071
|
* memory installed in the hardware
|
|
2072
|
* [0] net memory available for the OS (FreeBSD) after some is taken by BIOS, video or whatever - e.g. 235 MBytes
|
|
2073
|
* [1] real (actual) memory of the system, should be the size of the RAM card/s - e.g. 256 MBytes
|
|
2074
|
*/
|
|
2075
|
function get_memory() {
|
|
2076
|
$physmem = get_single_sysctl("hw.physmem");
|
|
2077
|
$realmem = get_single_sysctl("hw.realmem");
|
|
2078
|
/* convert from bytes to megabytes */
|
|
2079
|
return array(($physmem/1048576), ($realmem/1048576));
|
|
2080
|
}
|
|
2081
|
|
|
2082
|
function mute_kernel_msgs() {
|
|
2083
|
global $g, $config;
|
|
2084
|
// Do not mute serial console. The kernel gets very very cranky
|
|
2085
|
// and will start dishing you cannot control tty errors.
|
|
2086
|
if ($g['platform'] == 'nanobsd') {
|
|
2087
|
return;
|
|
2088
|
}
|
|
2089
|
if ($config['system']['enableserial']) {
|
|
2090
|
return;
|
|
2091
|
}
|
|
2092
|
exec("/sbin/conscontrol mute on");
|
|
2093
|
}
|
|
2094
|
|
|
2095
|
function unmute_kernel_msgs() {
|
|
2096
|
global $g;
|
|
2097
|
// Do not mute serial console. The kernel gets very very cranky
|
|
2098
|
// and will start dishing you cannot control tty errors.
|
|
2099
|
if ($g['platform'] == 'nanobsd') {
|
|
2100
|
return;
|
|
2101
|
}
|
|
2102
|
exec("/sbin/conscontrol mute off");
|
|
2103
|
}
|
|
2104
|
|
|
2105
|
function start_devd() {
|
|
2106
|
global $g;
|
|
2107
|
|
|
2108
|
/* Use the undocumented -q options of devd to quiet its log spamming */
|
|
2109
|
$_gb = exec("/sbin/devd -q -f /etc/{$g['product_name']}-devd.conf");
|
|
2110
|
sleep(1);
|
|
2111
|
unset($_gb);
|
|
2112
|
}
|
|
2113
|
|
|
2114
|
function is_interface_vlan_mismatch() {
|
|
2115
|
global $config, $g;
|
|
2116
|
|
|
2117
|
if (is_array($config['vlans']['vlan'])) {
|
|
2118
|
foreach ($config['vlans']['vlan'] as $vlan) {
|
|
2119
|
if (substr($vlan['if'], 0, 4) == "lagg") {
|
|
2120
|
return false;
|
|
2121
|
}
|
|
2122
|
if (does_interface_exist($vlan['if']) == false) {
|
|
2123
|
return true;
|
|
2124
|
}
|
|
2125
|
}
|
|
2126
|
}
|
|
2127
|
|
|
2128
|
return false;
|
|
2129
|
}
|
|
2130
|
|
|
2131
|
function is_interface_mismatch() {
|
|
2132
|
global $config, $g;
|
|
2133
|
|
|
2134
|
$do_assign = false;
|
|
2135
|
$i = 0;
|
|
2136
|
$missing_interfaces = array();
|
|
2137
|
if (is_array($config['interfaces'])) {
|
|
2138
|
foreach ($config['interfaces'] as $ifname => $ifcfg) {
|
|
2139
|
if (preg_match("/^enc|^cua|^tun|^tap|^l2tp|^pptp|^ppp|^ovpn|^gif|^gre|^lagg|^bridge|vlan|_wlan/i", $ifcfg['if'])) {
|
|
2140
|
// Do not check these interfaces.
|
|
2141
|
$i++;
|
|
2142
|
continue;
|
|
2143
|
} else if (does_interface_exist($ifcfg['if']) == false) {
|
|
2144
|
$missing_interfaces[] = $ifcfg['if'];
|
|
2145
|
$do_assign = true;
|
|
2146
|
} else {
|
|
2147
|
$i++;
|
|
2148
|
}
|
|
2149
|
}
|
|
2150
|
}
|
|
2151
|
|
|
2152
|
if (file_exists("{$g['tmp_path']}/assign_complete")) {
|
|
2153
|
$do_assign = false;
|
|
2154
|
}
|
|
2155
|
|
|
2156
|
if (!empty($missing_interfaces) && $do_assign) {
|
|
2157
|
file_put_contents("{$g['tmp_path']}/missing_interfaces", implode(' ', $missing_interfaces));
|
|
2158
|
} else {
|
|
2159
|
@unlink("{$g['tmp_path']}/missing_interfaces");
|
|
2160
|
}
|
|
2161
|
|
|
2162
|
return $do_assign;
|
|
2163
|
}
|
|
2164
|
|
|
2165
|
/* sync carp entries to other firewalls */
|
|
2166
|
function carp_sync_client() {
|
|
2167
|
global $g;
|
|
2168
|
send_event("filter sync");
|
|
2169
|
}
|
|
2170
|
|
|
2171
|
/****f* util/isAjax
|
|
2172
|
* NAME
|
|
2173
|
* isAjax - reports if the request is driven from prototype
|
|
2174
|
* INPUTS
|
|
2175
|
* none
|
|
2176
|
* RESULT
|
|
2177
|
* true/false
|
|
2178
|
******/
|
|
2179
|
function isAjax() {
|
|
2180
|
return isset ($_SERVER['HTTP_X_REQUESTED_WITH']) && $_SERVER['HTTP_X_REQUESTED_WITH'] == 'XMLHttpRequest';
|
|
2181
|
}
|
|
2182
|
|
|
2183
|
/****f* util/timeout
|
|
2184
|
* NAME
|
|
2185
|
* timeout - console input with timeout countdown. Note: erases 2 char of screen for timer. Leave space.
|
|
2186
|
* INPUTS
|
|
2187
|
* optional, seconds to wait before timeout. Default 9 seconds.
|
|
2188
|
* RESULT
|
|
2189
|
* returns 1 char of user input or null if no input.
|
|
2190
|
******/
|
|
2191
|
function timeout($timer = 9) {
|
|
2192
|
while (!isset($key)) {
|
|
2193
|
if ($timer >= 9) {
|
|
2194
|
echo chr(8) . chr(8) . ($timer == 9 ? chr(32) : null) . "{$timer}";
|
|
2195
|
} else {
|
|
2196
|
echo chr(8). "{$timer}";
|
|
2197
|
}
|
|
2198
|
`/bin/stty -icanon min 0 time 25`;
|
|
2199
|
$key = trim(`KEY=\`dd count=1 2>/dev/null\`; echo \$KEY`);
|
|
2200
|
`/bin/stty icanon`;
|
|
2201
|
if ($key == '') {
|
|
2202
|
unset($key);
|
|
2203
|
}
|
|
2204
|
$timer--;
|
|
2205
|
if ($timer == 0) {
|
|
2206
|
break;
|
|
2207
|
}
|
|
2208
|
}
|
|
2209
|
return $key;
|
|
2210
|
}
|
|
2211
|
|
|
2212
|
/****f* util/msort
|
|
2213
|
* NAME
|
|
2214
|
* msort - sort array
|
|
2215
|
* INPUTS
|
|
2216
|
* $array to be sorted, field to sort by, direction of sort
|
|
2217
|
* RESULT
|
|
2218
|
* returns newly sorted array
|
|
2219
|
******/
|
|
2220
|
function msort($array, $id = "id", $sort_ascending = true) {
|
|
2221
|
$temp_array = array();
|
|
2222
|
while (count($array)>0) {
|
|
2223
|
$lowest_id = 0;
|
|
2224
|
$index = 0;
|
|
2225
|
foreach ($array as $item) {
|
|
2226
|
if (isset($item[$id])) {
|
|
2227
|
if ($array[$lowest_id][$id]) {
|
|
2228
|
if (strtolower($item[$id]) < strtolower($array[$lowest_id][$id])) {
|
|
2229
|
$lowest_id = $index;
|
|
2230
|
}
|
|
2231
|
}
|
|
2232
|
}
|
|
2233
|
$index++;
|
|
2234
|
}
|
|
2235
|
$temp_array[] = $array[$lowest_id];
|
|
2236
|
$array = array_merge(array_slice($array, 0, $lowest_id), array_slice($array, $lowest_id + 1));
|
|
2237
|
}
|
|
2238
|
if ($sort_ascending) {
|
|
2239
|
return $temp_array;
|
|
2240
|
} else {
|
|
2241
|
return array_reverse($temp_array);
|
|
2242
|
}
|
|
2243
|
}
|
|
2244
|
|
|
2245
|
/****f* util/is_URL
|
|
2246
|
* NAME
|
|
2247
|
* is_URL
|
|
2248
|
* INPUTS
|
|
2249
|
* string to check
|
|
2250
|
* RESULT
|
|
2251
|
* Returns true if item is a URL
|
|
2252
|
******/
|
|
2253
|
function is_URL($url) {
|
|
2254
|
$match = preg_match("'\b(([\w-]+://?|www[.])[^\s()<>]+(?:\([\w\d]+\)|([^[:punct:]\s]|/)))'", $url);
|
|
2255
|
if ($match) {
|
|
2256
|
return true;
|
|
2257
|
}
|
|
2258
|
return false;
|
|
2259
|
}
|
|
2260
|
|
|
2261
|
function is_file_included($file = "") {
|
|
2262
|
$files = get_included_files();
|
|
2263
|
if (in_array($file, $files)) {
|
|
2264
|
return true;
|
|
2265
|
}
|
|
2266
|
|
|
2267
|
return false;
|
|
2268
|
}
|
|
2269
|
|
|
2270
|
/*
|
|
2271
|
* Replace a value on a deep associative array using regex
|
|
2272
|
*/
|
|
2273
|
function array_replace_values_recursive($data, $match, $replace) {
|
|
2274
|
if (empty($data)) {
|
|
2275
|
return $data;
|
|
2276
|
}
|
|
2277
|
|
|
2278
|
if (is_string($data)) {
|
|
2279
|
$data = preg_replace("/{$match}/", $replace, $data);
|
|
2280
|
} else if (is_array($data)) {
|
|
2281
|
foreach ($data as $k => $v) {
|
|
2282
|
$data[$k] = array_replace_values_recursive($v, $match, $replace);
|
|
2283
|
}
|
|
2284
|
}
|
|
2285
|
|
|
2286
|
return $data;
|
|
2287
|
}
|
|
2288
|
|
|
2289
|
/*
|
|
2290
|
This function was borrowed from a comment on PHP.net at the following URL:
|
|
2291
|
http://www.php.net/manual/en/function.array-merge-recursive.php#73843
|
|
2292
|
*/
|
|
2293
|
function array_merge_recursive_unique($array0, $array1) {
|
|
2294
|
|
|
2295
|
$arrays = func_get_args();
|
|
2296
|
$remains = $arrays;
|
|
2297
|
|
|
2298
|
// We walk through each arrays and put value in the results (without
|
|
2299
|
// considering previous value).
|
|
2300
|
$result = array();
|
|
2301
|
|
|
2302
|
// loop available array
|
|
2303
|
foreach ($arrays as $array) {
|
|
2304
|
|
|
2305
|
// The first remaining array is $array. We are processing it. So
|
|
2306
|
// we remove it from remaining arrays.
|
|
2307
|
array_shift($remains);
|
|
2308
|
|
|
2309
|
// We don't care non array param, like array_merge since PHP 5.0.
|
|
2310
|
if (is_array($array)) {
|
|
2311
|
// Loop values
|
|
2312
|
foreach ($array as $key => $value) {
|
|
2313
|
if (is_array($value)) {
|
|
2314
|
// we gather all remaining arrays that have such key available
|
|
2315
|
$args = array();
|
|
2316
|
foreach ($remains as $remain) {
|
|
2317
|
if (array_key_exists($key, $remain)) {
|
|
2318
|
array_push($args, $remain[$key]);
|
|
2319
|
}
|
|
2320
|
}
|
|
2321
|
|
|
2322
|
if (count($args) > 2) {
|
|
2323
|
// put the recursion
|
|
2324
|
$result[$key] = call_user_func_array(__FUNCTION__, $args);
|
|
2325
|
} else {
|
|
2326
|
foreach ($value as $vkey => $vval) {
|
|
2327
|
$result[$key][$vkey] = $vval;
|
|
2328
|
}
|
|
2329
|
}
|
|
2330
|
} else {
|
|
2331
|
// simply put the value
|
|
2332
|
$result[$key] = $value;
|
|
2333
|
}
|
|
2334
|
}
|
|
2335
|
}
|
|
2336
|
}
|
|
2337
|
return $result;
|
|
2338
|
}
|
|
2339
|
|
|
2340
|
|
|
2341
|
/*
|
|
2342
|
* converts a string like "a,b,c,d"
|
|
2343
|
* into an array like array("a" => "b", "c" => "d")
|
|
2344
|
*/
|
|
2345
|
function explode_assoc($delimiter, $string) {
|
|
2346
|
$array = explode($delimiter, $string);
|
|
2347
|
$result = array();
|
|
2348
|
$numkeys = floor(count($array) / 2);
|
|
2349
|
for ($i = 0; $i < $numkeys; $i += 1) {
|
|
2350
|
$result[$array[$i * 2]] = $array[$i * 2 + 1];
|
|
2351
|
}
|
|
2352
|
return $result;
|
|
2353
|
}
|
|
2354
|
|
|
2355
|
function get_staticroutes($returnsubnetsonly = false, $returnhostnames = false) {
|
|
2356
|
global $config, $aliastable;
|
|
2357
|
|
|
2358
|
/* Bail if there are no routes, but return an array always so callers don't have to check. */
|
|
2359
|
if (!is_array($config['staticroutes']['route'])) {
|
|
2360
|
return array();
|
|
2361
|
}
|
|
2362
|
|
|
2363
|
$allstaticroutes = array();
|
|
2364
|
$allsubnets = array();
|
|
2365
|
/* Loop through routes and expand aliases as we find them. */
|
|
2366
|
foreach ($config['staticroutes']['route'] as $route) {
|
|
2367
|
if (is_alias($route['network'])) {
|
|
2368
|
if (!isset($aliastable[$route['network']])) {
|
|
2369
|
continue;
|
|
2370
|
}
|
|
2371
|
|
|
2372
|
$subnets = preg_split('/\s+/', $aliastable[$route['network']]);
|
|
2373
|
foreach ($subnets as $net) {
|
|
2374
|
if (!is_subnet($net)) {
|
|
2375
|
if (is_ipaddrv4($net)) {
|
|
2376
|
$net .= "/32";
|
|
2377
|
} else if (is_ipaddrv6($net)) {
|
|
2378
|
$net .= "/128";
|
|
2379
|
} else if ($returnhostnames === false || !is_fqdn($net)) {
|
|
2380
|
continue;
|
|
2381
|
}
|
|
2382
|
}
|
|
2383
|
$temproute = $route;
|
|
2384
|
$temproute['network'] = $net;
|
|
2385
|
$allstaticroutes[] = $temproute;
|
|
2386
|
$allsubnets[] = $net;
|
|
2387
|
}
|
|
2388
|
} elseif (is_subnet($route['network'])) {
|
|
2389
|
$allstaticroutes[] = $route;
|
|
2390
|
$allsubnets[] = $route['network'];
|
|
2391
|
}
|
|
2392
|
}
|
|
2393
|
if ($returnsubnetsonly) {
|
|
2394
|
return $allsubnets;
|
|
2395
|
} else {
|
|
2396
|
return $allstaticroutes;
|
|
2397
|
}
|
|
2398
|
}
|
|
2399
|
|
|
2400
|
/****f* util/get_alias_list
|
|
2401
|
* NAME
|
|
2402
|
* get_alias_list - Provide a list of aliases.
|
|
2403
|
* INPUTS
|
|
2404
|
* $type - Optional, can be a string or array specifying what type(s) of aliases you need.
|
|
2405
|
* RESULT
|
|
2406
|
* Array containing list of aliases.
|
|
2407
|
* If $type is unspecified, all aliases are returned.
|
|
2408
|
* If $type is a string, all aliases of the type specified in $type are returned.
|
|
2409
|
* If $type is an array, all aliases of any type specified in any element of $type are returned.
|
|
2410
|
*/
|
|
2411
|
function get_alias_list($type = null) {
|
|
2412
|
global $config;
|
|
2413
|
$result = array();
|
|
2414
|
if ($config['aliases']['alias'] <> "" && is_array($config['aliases']['alias'])) {
|
|
2415
|
foreach ($config['aliases']['alias'] as $alias) {
|
|
2416
|
if ($type === null) {
|
|
2417
|
$result[] = $alias['name'];
|
|
2418
|
} else if (is_array($type)) {
|
|
2419
|
if (in_array($alias['type'], $type)) {
|
|
2420
|
$result[] = $alias['name'];
|
|
2421
|
}
|
|
2422
|
} else if ($type === $alias['type']) {
|
|
2423
|
$result[] = $alias['name'];
|
|
2424
|
}
|
|
2425
|
}
|
|
2426
|
}
|
|
2427
|
return $result;
|
|
2428
|
}
|
|
2429
|
|
|
2430
|
/* returns an array consisting of every element of $haystack that is not equal to $needle. */
|
|
2431
|
function array_exclude($needle, $haystack) {
|
|
2432
|
$result = array();
|
|
2433
|
if (is_array($haystack)) {
|
|
2434
|
foreach ($haystack as $thing) {
|
|
2435
|
if ($needle !== $thing) {
|
|
2436
|
$result[] = $thing;
|
|
2437
|
}
|
|
2438
|
}
|
|
2439
|
}
|
|
2440
|
return $result;
|
|
2441
|
}
|
|
2442
|
|
|
2443
|
/* Define what is preferred, IPv4 or IPv6 */
|
|
2444
|
function prefer_ipv4_or_ipv6() {
|
|
2445
|
global $config;
|
|
2446
|
|
|
2447
|
if (isset($config['system']['prefer_ipv4'])) {
|
|
2448
|
mwexec("/etc/rc.d/ip6addrctl prefer_ipv4");
|
|
2449
|
} else {
|
|
2450
|
mwexec("/etc/rc.d/ip6addrctl prefer_ipv6");
|
|
2451
|
}
|
|
2452
|
}
|
|
2453
|
|
|
2454
|
/* Redirect to page passing parameters via POST */
|
|
2455
|
function post_redirect($page, $params) {
|
|
2456
|
if (!is_array($params)) {
|
|
2457
|
return;
|
|
2458
|
}
|
|
2459
|
|
|
2460
|
print "<html><body><form action=\"{$page}\" name=\"formredir\" method=\"post\">\n";
|
|
2461
|
foreach ($params as $key => $value) {
|
|
2462
|
print "<input type=\"hidden\" name=\"{$key}\" value=\"{$value}\" />\n";
|
|
2463
|
}
|
|
2464
|
print "</form>\n";
|
|
2465
|
print "<script type=\"text/javascript\">\n";
|
|
2466
|
print "//<![CDATA[\n";
|
|
2467
|
print "document.formredir.submit();\n";
|
|
2468
|
print "//]]>\n";
|
|
2469
|
print "</script>\n";
|
|
2470
|
print "</body></html>\n";
|
|
2471
|
}
|
|
2472
|
|
|
2473
|
/* Locate disks that can be queried for S.M.A.R.T. data. */
|
|
2474
|
function get_smart_drive_list() {
|
|
2475
|
$disk_list = explode(" ", get_single_sysctl("kern.disks"));
|
|
2476
|
foreach ($disk_list as $id => $disk) {
|
|
2477
|
// We only want certain kinds of disks for S.M.A.R.T.
|
|
2478
|
// 1 is a match, 0 is no match, False is any problem processing the regex
|
|
2479
|
if (preg_match("/^(ad|da|ada).*[0-9]{1,2}$/", $disk) !== 1) {
|
|
2480
|
unset($disk_list[$id]);
|
|
2481
|
}
|
|
2482
|
}
|
|
2483
|
sort($disk_list);
|
|
2484
|
return $disk_list;
|
|
2485
|
}
|
|
2486
|
|
|
2487
|
?>
|