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<?php
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/*
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* ecl.php
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*
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* Copyright (c) 2010-2015 Electric Sheep Fencing, LLC. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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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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require_once("globals.inc");
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require_once("functions.inc");
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require_once("config.lib.inc");
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require_once("config.inc");
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$debug = false;
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function get_boot_disk() {
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global $g, $debug;
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$disk = exec("/sbin/mount | /usr/bin/grep \"on / \" | /usr/bin/cut -d'/' -f3 | /usr/bin/cut -d' ' -f1");
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return $disk;
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}
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function get_swap_disks() {
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exec("/usr/sbin/swapinfo | /usr/bin/sed '/^\/dev/!d; s,^/dev/,,; s, .*\$,,'", $disks);
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return $disks;
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}
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function get_disk_slices($disk) {
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global $g, $debug;
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$slices = glob("/dev/" . $disk . "s*");
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$slices = str_replace("/dev/", "", $slices);
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return $slices;
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}
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function get_disks() {
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global $g, $debug;
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$disks_array = array();
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$disks_s = explode(" ", get_single_sysctl("kern.disks"));
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foreach ($disks_s as $disk) {
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if (trim($disk)) {
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$disks_array[] = $disk;
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}
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}
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return $disks_array;
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}
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function discover_config($mountpoint) {
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global $g, $debug;
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$locations_to_check = array("/", "/config");
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foreach ($locations_to_check as $ltc) {
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$tocheck = "/tmp/mnt/cf{$ltc}config.xml";
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if ($debug) {
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echo "\nChecking for $tocheck";
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if (file_exists($tocheck)) {
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echo " -> found!";
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}
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}
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if (file_exists($tocheck)) {
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return $tocheck;
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}
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}
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return "";
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}
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function test_config($file_location) {
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global $g, $debug;
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if (!$file_location) {
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return;
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}
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// config.xml was found. ensure it is sound.
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$root_obj = trim("<{$g['xml_rootobj']}>");
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$xml_file_head = exec("/usr/bin/head -2 " . escapeshellarg($file_location) . " | /usr/bin/tail -n1");
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if ($debug) {
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echo "\nroot obj = $root_obj";
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echo "\nfile head = $xml_file_head";
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}
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if ($xml_file_head == $root_obj) {
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// Now parse config to make sure
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$config_status = config_validate($file_location);
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if ($config_status) {
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return true;
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}
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}
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return false;
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}
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// Probes all disks looking for config.xml
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function find_config_xml() {
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global $g, $debug;
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$disks = get_disks();
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// Safety check.
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if (!is_array($disks)) {
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return;
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}
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$boot_disk = get_boot_disk();
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$swap_disks = get_swap_disks();
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exec("/bin/mkdir -p /tmp/mnt/cf");
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foreach ($disks as $disk) {
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$slices = get_disk_slices($disk);
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if (is_array($slices)) {
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foreach ($slices as $slice) {
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if ($slice == "") {
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continue;
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}
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if (stristr($slice, $boot_disk)) {
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if ($debug) {
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echo "\nSkipping boot device slice $slice";
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}
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continue;
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}
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if (in_array($slice, $swap_disks)) {
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if ($debug) {
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echo "\nSkipping swap device slice $slice";
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}
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continue;
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}
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echo " $slice";
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// First try msdos fs
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if ($debug) {
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echo "\n/sbin/mount -t msdosfs /dev/{$slice} /tmp/mnt/cf 2>/dev/null \n";
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}
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$result = exec("/sbin/mount -t msdosfs /dev/{$slice} /tmp/mnt/cf 2>/dev/null");
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// Next try regular fs (ufs)
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if (!$result) {
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if ($debug) {
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echo "\n/sbin/mount /dev/{$slice} /tmp/mnt/cf 2>/dev/null \n";
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}
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$result = exec("/sbin/mount /dev/{$slice} /tmp/mnt/cf 2>/dev/null");
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}
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$mounted = trim(exec("/sbin/mount | /usr/bin/grep -v grep | /usr/bin/grep '/tmp/mnt/cf' | /usr/bin/wc -l"));
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if ($debug) {
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echo "\nmounted: $mounted ";
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}
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if (intval($mounted) > 0) {
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// Item was mounted - look for config.xml file
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$config_location = discover_config($slice);
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if ($config_location) {
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if (test_config($config_location)) {
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// We have a valid configuration. Install it.
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echo " -> found config.xml\n";
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echo "Backing up old configuration...\n";
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backup_config();
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echo "Restoring [{$slice}] {$config_location}...\n";
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restore_backup($config_location);
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echo "Cleaning up...\n";
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exec("/sbin/umount /tmp/mnt/cf");
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exit;
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}
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}
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exec("/sbin/umount /tmp/mnt/cf");
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}
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}
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}
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}
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}
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echo "External config loader 1.0 is now starting...";
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find_config_xml();
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echo "\n";
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?>
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