pfSense

<?php

/****h* pfSense/config

 * NAME

 *   config.inc - Functions to manipulate config.xml

 * DESCRIPTION

 *   This include contains various config.xml specific functions.

 * HISTORY

 * $Id$

 ******

	config.inc

	Copyright (C) 2004-2006 Scott Ullrich

	All rights reserved.

	originally part of m0n0wall (http://m0n0.ch/wall)

	Copyright (C) 2003-2004 Manuel Kasper <mk@neon1.net>.

	All rights reserved.

	Redistribution and use in source and binary forms, with or without

	modification, are permitted provided that the following conditions are met:

	1. Redistributions of source code must retain the above copyright notice,

	   this list of conditions and the following disclaimer.

	2. Redistributions in binary form must reproduce the above copyright

	   notice, this list of conditions and the following disclaimer in the

	   documentation and/or other materials provided with the distribution.

	THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,

	INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY

	AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE

	AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,

	OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

	SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

	INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

	CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

	ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

	POSSIBILITY OF SUCH DAMAGE.

	pfSense_BUILDER_BINARIES:	/sbin/mount	/sbin/sysctl	/sbin/umount	/sbin/halt	/sbin/fsck	/bin/sync

	pfSense_MODULE:	config

*/

/*

 * XXX: Hack around the cvs syntax checks. 

 * DISABLE_PHP_LINT_CHECKING

 */

if($g['booting']) echo ".";

/* do not load this file twice. */

if($config_inc_loaded == true)

	return;

else

	$config_inc_loaded = true;

// Set the memory limit to 128M.  When someone has something like 500+ tunnels

// the parser needs quite a bit of ram.   Do not remove this line unless you 

// know what you are doing.  If in doubt, check with dev@ _/FIRST/_!

ini_set("memory_limit","128M");

/* include globals from notices.inc /utility/XML parser files */

require_once('config.lib.inc');

if($g['booting']) echo ".";

require_once("notices.inc");

if($g['booting']) echo ".";

require_once("util.inc");

if($g['booting']) echo ".";

if(file_exists("/cf/conf/use_xmlreader"))

	require_once("xmlreader.inc");

else

	require_once("xmlparse.inc");

if($g['booting']) echo ".";

require_once("crypt.inc");

/* read platform */

if($g['booting']) echo ".";

if (file_exists("{$g['etc_path']}/platform")) {

	$g['platform'] = chop(file_get_contents("{$g['etc_path']}/platform"));

} else {

	$g['platform'] = "unknown";

}

/* if /debugging exists, lets set $debugging

   so we can output more information */

if(file_exists("/debugging")) {

	$debugging = true;

	$g['debug'] = true;

}

if($g['booting']) echo ".";

if(file_exists("/cf/conf/config.xml")) {

	$config_contents = file_get_contents("/cf/conf/config.xml");

	if(stristr($config_contents, "<m0n0wall>") == true) {

		if($g['booting']) echo ".";

		/* user has just upgraded to m0n0wall, replace root xml tags */

		log_error("Upgrading m0n0wall configuration to pfSense... ");

		$config_contents = str_replace("m0n0wall","pfsense", $config_contents);

		if (!config_validate("{$g['conf_path']}/config.xml"))

			log_error("ERROR!  Could not convert m0n0wall -> pfsense in config.xml");

		conf_mount_rw();

		$fd = fopen("/cf/conf/config.xml", "w");

		fwrite($fd, $config_contents);

		fclose($fd);

		conf_mount_ro();

	}

}

/* if our config file exists bail out, we're already set. */

if ($g['booting'] and !file_exists($g['cf_conf_path'] . "/config.xml")  ) {

	if($g['booting']) echo ".";

	/* find the device where config.xml resides and write out an fstab */

	unset($cfgdevice);

	if($g['booting']) echo ".";

	/* check if there's already an fstab (NFS booting?) */

	if (!file_exists("{$g['etc_path']}/fstab")) {

		if($g['booting']) echo ".";

		if (strstr($g['platform'], "cdrom")) {

			/* config is on floppy disk for CD-ROM version */

			$cfgdevice = $cfgpartition = "fd0";

			$dmesg = `dmesg -a`;

			if(ereg("da0", $dmesg) == true) {

				$cfgdevice = $cfgpartition = "da0" ;

				if (mwexec("/sbin/mount -r /dev/{$cfgdevice} /cf")) {

					/* could not mount, fallback to floppy */

					$cfgdevice = $cfgpartition = "fd0";

				}

			}

			$cfgfstype = "msdosfs";

			echo "CDROM build\n";

			echo "   CFG: {$cfgpartition}\n";

			echo "  TYPE: {$cfgfstype}\n";

		} else {

			if($g['booting']) echo ".";

			/* probe kernel known disks until we find one with config.xml */

			$disks = explode(" ", trim(preg_replace("/kern.disks: /", "", exec("/sbin/sysctl kern.disks"))));

			foreach ($disks as $mountdisk) {

				/* skip mfs mounted filesystems */

				if (strstr($mountdisk, "md"))

					continue;

				if (mwexec("/sbin/mount -r /dev/{$mountdisk}a {$g['cf_path']}") == 0) {

					if (file_exists("{$g['cf_conf_path']}/config.xml")) {

						/* found it */

						$cfgdevice = $mountdisk;

						$cfgpartition = $cfgdevice . "a";

						$cfgfstype = "ufs";

						echo "Found configuration on $cfgdevice.\n";

					}

					mwexec("/sbin/umount -f {$g['cf_path']}");

					if ($cfgdevice)

						break;

				}

				if (mwexec("/sbin/mount -r /dev/{$mountdisk}d {$g['cf_path']}") == 0) {

					if($g['booting']) echo ".";

					if (file_exists("{$g['cf_conf_path']}/config.xml")) {

						/* found it */

						$cfgdevice = $mountdisk;

						$cfgpartition = $cfgdevice . "d";

						$cfgfstype = "ufs";

						echo "Found configuration on $cfgdevice.\n";

					}

					mwexec("/sbin/umount -f {$g['cf_path']}");

					if ($cfgdevice)

						break;

				}

			}

		}

		if($g['booting']) echo ".";

		if (!$cfgdevice) {

			$last_backup = discover_last_backup();

			if($last_backup) {

				log_error("No config.xml found, attempting last known config restore.");

				file_notice("config.xml", "No config.xml found, attempting last known config restore.", "pfSenseConfigurator", "");

				restore_backup("/cf/conf/backup/{$last_backup}");

			} else {

				log_error("No config.xml or config backups found, resetting to factory defaults.");

				restore_backup('/conf.default/config.xml');

			}

		}

		/* write device name to a file for rc.firmware */

		$fd = fopen("{$g['varetc_path']}/cfdevice", "w");

		fwrite($fd, $cfgdevice . "\n");

		fclose($fd);

		/* write out an fstab */

		$fd = fopen("{$g['etc_path']}/fstab", "w");

		$fstab = "/dev/{$cfgpartition} {$g['cf_path']} {$cfgfstype} ro 1 1\n";

		$fstab .= "proc /proc procfs rw 0 0\n";

		fwrite($fd, $fstab);

		fclose($fd);

	}

	if($g['booting']) echo ".";

	/* mount all filesystems */

	mwexec("/sbin/mount -a");

}

if($g['booting']) echo ".";

$config = parse_config();

if($config_parsed == true) {

	/* process packager manager custom rules */

	if(is_dir("/usr/local/pkg/parse_config")) {

		run_plugins("/usr/local/pkg/parse_config/");

	}

}

?>