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<?php
/*
* ecl.php
*
* Copyright (c) 2010-2015 Rubicon Communications, LLC (Netgate). 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.
*
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgment:
* "This product includes software developed by the pfSense Project
* for use in the pfSense® software distribution. (http://www.pfsense.org/).
*
* 4. The names "pfSense" and "pfSense Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* coreteam@pfsense.org.
*
* 5. Products derived from this software may not be called "pfSense"
* nor may "pfSense" appear in their names without prior written
* permission of the Electric Sheep Fencing, LLC.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
*
* "This product includes software developed by the pfSense Project
* for use in the pfSense software distribution (http://www.pfsense.org/).
*
* THIS SOFTWARE IS PROVIDED BY THE pfSense PROJECT ``AS IS'' AND ANY
* EXPRESSED 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 pfSense PROJECT OR
* ITS CONTRIBUTORS 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.
*/
require_once("globals.inc");
require_once("functions.inc");
require_once("config.lib.inc");
require_once("config.inc");
$debug = false;
function get_boot_disk() {
global $g, $debug;
$disk = exec("/sbin/mount | /usr/bin/grep \"on / \" | /usr/bin/cut -d'/' -f3 | /usr/bin/cut -d' ' -f1");
return $disk;
}
function get_swap_disks() {
exec("/usr/sbin/swapinfo | /usr/bin/sed '/^\/dev/!d; s,^/dev/,,; s, .*\$,,'", $disks);
return $disks;
}
function get_disk_slices($disk) {
global $g, $debug;
$slices = glob("/dev/" . $disk . "s*");
$slices = str_replace("/dev/", "", $slices);
return $slices;
}
function get_disks() {
global $g, $debug;
$disks_array = array();
$disks_s = explode(" ", get_single_sysctl("kern.disks"));
foreach ($disks_s as $disk) {
if (trim($disk)) {
$disks_array[] = $disk;
}
}
return $disks_array;
}
function discover_config($mountpoint) {
global $g, $debug;
$locations_to_check = array("/", "/config");
foreach ($locations_to_check as $ltc) {
$tocheck = "/tmp/mnt/cf{$ltc}config.xml";
if ($debug) {
echo "\nChecking for $tocheck";
if (file_exists($tocheck)) {
echo " -> found!";
}
}
if (file_exists($tocheck)) {
return $tocheck;
}
}
return "";
}
function test_config($file_location) {
global $g, $debug;
if (!$file_location) {
return;
}
// config.xml was found. ensure it is sound.
$root_obj = trim("<{$g['xml_rootobj']}>");
$xml_file_head = exec("/usr/bin/head -2 " . escapeshellarg($file_location) . " | /usr/bin/tail -n1");
if ($debug) {
echo "\nroot obj = $root_obj";
echo "\nfile head = $xml_file_head";
}
if ($xml_file_head == $root_obj) {
// Now parse config to make sure
$config_status = config_validate($file_location);
if ($config_status) {
return true;
}
}
return false;
}
// Probes all disks looking for config.xml
function find_config_xml() {
global $g, $debug;
$disks = get_disks();
// Safety check.
if (!is_array($disks)) {
return;
}
$boot_disk = get_boot_disk();
$swap_disks = get_swap_disks();
exec("/bin/mkdir -p /tmp/mnt/cf");
foreach ($disks as $disk) {
$slices = get_disk_slices($disk);
if (is_array($slices)) {
foreach ($slices as $slice) {
if ($slice == "") {
continue;
}
if (stristr($slice, $boot_disk)) {
if ($debug) {
echo "\nSkipping boot device slice $slice";
}
continue;
}
if (in_array($slice, $swap_disks)) {
if ($debug) {
echo "\nSkipping swap device slice $slice";
}
continue;
}
echo " $slice";
// First try msdos fs
if ($debug) {
echo "\n/sbin/mount -t msdosfs /dev/{$slice} /tmp/mnt/cf 2>/dev/null \n";
}
$result = exec("/sbin/mount -t msdosfs /dev/{$slice} /tmp/mnt/cf 2>/dev/null");
// Next try regular fs (ufs)
if (!$result) {
if ($debug) {
echo "\n/sbin/mount /dev/{$slice} /tmp/mnt/cf 2>/dev/null \n";
}
$result = exec("/sbin/mount /dev/{$slice} /tmp/mnt/cf 2>/dev/null");
}
$mounted = trim(exec("/sbin/mount | /usr/bin/grep -v grep | /usr/bin/grep '/tmp/mnt/cf' | /usr/bin/wc -l"));
if ($debug) {
echo "\nmounted: $mounted ";
}
if (intval($mounted) > 0) {
// Item was mounted - look for config.xml file
$config_location = discover_config($slice);
if ($config_location) {
if (test_config($config_location)) {
// We have a valid configuration. Install it.
echo " -> found config.xml\n";
echo "Backing up old configuration...\n";
backup_config();
echo "Restoring [{$slice}] {$config_location}...\n";
restore_backup($config_location);
echo "Cleaning up...\n";
exec("/sbin/umount /tmp/mnt/cf");
exit;
}
}
exec("/sbin/umount /tmp/mnt/cf");
}
}
}
}
}
echo "External config loader 1.0 is now starting...";
find_config_xml();
echo "\n";
?>
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