<?php
/*
 * config.inc
 *
 * part of pfSense (https://www.pfsense.org)
 * Copyright (c) 2004-2016 Rubicon Communications, LLC (Netgate)
 * All rights reserved.
 *
 * originally part of m0n0wall (http://m0n0.ch/wall)
 * Copyright (c) 2003-2004 Manuel Kasper <mk@neon1.net>.
 * All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

if (!function_exists('platform_booting')) {
	require_once('globals.inc');
}

/* do not load this file twice. */
//if (in_array("/etc/inc/config.inc", get_included_files()))
//	return;

// Set the memory limit to 128M on i386.  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/_!
if (!$ARCH) {
	$ARCH = php_uname("m");
}

// Set memory limit to 512M on amd64.
if ($ARCH == "amd64") {
	ini_set("memory_limit", "512M");
} else {
	ini_set("memory_limit", "128M");
}

/* include globals from notices.inc /utility/XML parser files */
require_once("notices.inc");
require_once("util.inc");
require_once("Net/IPv6.php");
require_once('config.lib.inc');
if (file_exists("/cf/conf/use_xmlreader")) {
	require_once("xmlreader.inc");
} else {
	require_once("xmlparse.inc");
}
require_once("crypt.inc");

/* if /debugging exists, lets set $debugging
   so we can output more information */
if (file_exists("/debugging")) {
	$debugging = true;
	$g['debug'] = true;
}

if (platform_booting(true)) {
	echo ".";
	if (file_exists("/cf/conf/config.xml")) {
		$config_contents = file_get_contents("/cf/conf/config.xml");
		if (stristr($config_contents, "<m0n0wall>") == true) {
			echo ".";
			/* user has just upgraded from m0n0wall, replace root xml tags */
			log_error(gettext("Upgrading m0n0wall configuration to pfSense... "));
			$config_contents = str_replace("m0n0wall", "pfsense", $config_contents);
			if (!config_validate("{$g['conf_path']}/config.xml")) {
				log_error(gettext("ERROR!  Could not convert m0n0wall -> pfsense in config.xml"));
			}
			file_put_contents("/cf/conf/config.xml", $config_contents);
		}
		unset($config_contents);
	}
	/* if our config file exists bail out, we're already set. */
	else if (!file_exists($g['cf_conf_path'] . "/config.xml")) {
		echo ".";
		/* find the device where config.xml resides and write out an fstab */
		unset($cfgdevice);
		echo ".";
		/* check if there's already an fstab (NFS booting?) */
		if (!file_exists("{$g['etc_path']}/fstab")) {
			echo ".";
			/* probe kernel known disks until we find one with config.xml */
			$disks = explode(" ", get_single_sysctl("kern.disks"));
			foreach ($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";
						$cfgfstype = "ufs";
						printf(gettext('Found configuration on %1$s.%2$s'), $cfgdevice, "\n");
					}

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

					if ($cfgdevice) {
						break;
					}
				}
				if (mwexec("/sbin/mount -r /dev/{$mountdisk}d {$g['cf_path']}") == 0) {
					if (platform_booting()) {
						echo ".";
					}
					if (file_exists("{$g['cf_conf_path']}/config.xml")) {
						/* found it */
						$cfgdevice = $mountdisk;
						$cfgpartition = $cfgdevice . "d";
						$cfgfstype = "ufs";
						printf(gettext('Found configuration on %1$s.%2$s'), $cfgdevice, "\n");
					}

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

					if ($cfgdevice) {
						break;
					}
				}
			}
			echo ".";
			if (!$cfgdevice) {
				$last_backup = discover_last_backup();
				if ($last_backup) {
					log_error(gettext("No config.xml found, attempting last known config restore."));
					file_notice("config.xml", gettext("No config.xml found, attempting last known config restore."), "pfSenseConfigurator", "");
					restore_backup("/cf/conf/backup/{$last_backup}");
				} else {
					log_error(gettext("No config.xml or config backups found, resetting to factory defaults."));
					restore_backup('/conf.default/config.xml');
				}
			}

			/* write out an fstab */

			$fstab = "/dev/{$cfgpartition} {$g['cf_path']} {$cfgfstype} ro,noatime 1 1\n";
			$fstab .= "proc /proc procfs rw 0 0\n";
			file_put_contents("{$g['etc_path']}/fstab", $fstab);
		}
		echo ".";
		/* mount all filesystems */
		mwexec("/sbin/mount -a");
	}
	echo ".";
}

$config = parse_config();

/* set timezone */
if (isset($config['system']['timezone']) &&
    !empty($config['system']['timezone'])) {
	$timezone = $config['system']['timezone'];
} elseif (isset($g['default_timezone']) && !empty($g['default_timezone'])) {
	$timezone = $g['default_timezone'];
} else {
	$timezone = "Etc/UTC";
}
date_default_timezone_set("$timezone");

if ($config_parsed == true) {
	/* process packager manager custom rules */
	if (is_dir("/usr/local/pkg/parse_config")) {
		run_plugins("/usr/local/pkg/parse_config/");
	}
}

?>