pfSense

<?php

/*

	diag_traceroute.php

*/

/* ====================================================================

 *  Copyright (c)  2004-2015  Electric Sheep Fencing, LLC. All rights reserved.

 *  Copyright (c)  2005 Paul Taylor (paultaylor@winndixie.com) and Manuel Kasper <mk@neon1.net>

 *

 *  Some or all of this file is based on the m0n0wall project which is

 *  Copyright (c)  2004 Manuel Kasper (BSD 2 clause)

 *

 *  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.

 *

 *  ====================================================================

 *

 */

/*

	pfSense_BUILDER_BINARIES:	/usr/sbin/traceroute

	pfSense_MODULE: routing

*/

##|+PRIV

##|*IDENT=page-diagnostics-traceroute

##|*NAME=Diagnostics: Traceroute page

##|*DESCR=Allow access to the 'Diagnostics: Traceroute' page.

##|*MATCH=diag_traceroute.php*

##|-PRIV

require("guiconfig.inc");

$allowautocomplete = true;

$pgtitle = array(gettext("Diagnostics"), gettext("Traceroute"));

include("head.inc");

define('MAX_TTL', 64);

define('DEFAULT_TTL', 18);

$do_traceroute = false;

$host = '';

$ttl = DEFAULT_TTL;

$pconfig['ttl'] = DEFAULT_TTL;

$pconfig['ipproto'] = 'IPv4';

$pconfig['sourceip'] = 'Any';

function create_sourceaddresslist() {

	$list = array('any' => 'Any');

	$sourceips = get_possible_traffic_source_addresses(true);

	foreach ($sourceips as $sipvalue => $sipname)

		$list[$sipvalue] = $sipname;

	return($list);

}

if ($_POST || $_REQUEST['host']) {

	unset($input_errors);

	unset($do_traceroute);

	/* input validation */

	$reqdfields = explode(" ", "host ttl");

	$reqdfieldsn = array(gettext("Host"), gettext("ttl"));

	do_input_validation($_REQUEST, $reqdfields, $reqdfieldsn, $input_errors);

	if (($_REQUEST['ttl'] < 1) || ($_REQUEST['ttl'] > MAX_TTL)) {

		$input_errors[] = sprintf(gettext("Maximum number of hops must be between 1 and %s"), MAX_TTL);

	}

	$host = trim($_REQUEST['host']);

	$ipproto = $_REQUEST['ipproto'];

	if (($ipproto == "ipv4") && is_ipaddrv6($host)) {

		$input_errors[] = gettext("When using IPv4, the target host must be an IPv4 address or hostname.");

	}

	if (($ipproto == "ipv6") && is_ipaddrv4($host)) {

		$input_errors[] = gettext("When using IPv6, the target host must be an IPv6 address or hostname.");

	}

	if (!$input_errors) {

		$host = $_REQUEST['host'];

	}

	$sourceip = $_REQUEST['sourceip'];

	$ttl = $_REQUEST['ttl'];

	$resolve = $_REQUEST['resolve'];

	$useicmp = $_REQUEST['useicmp'];

	if ($_POST) {

		$do_traceroute = true;

	}

} else {

	$resolve = false;

	$useicmp = false;

}

if ($input_errors)

	print_input_errors($input_errors);

$form = new Form('Traceroute');

$section = new Form_Section('Traceroute');

$section->addInput(new Form_Input(

	'host',

	'Hostname',

	'text',

	$host,

	['placeholder' => 'Hostname to trace.']

));

$section->addInput(new Form_Select(

	'ipproto',

	'IP Protocol',

	$pconfig['ipproto'],

	array('ipv4' => 'IPv4', 'ipv6' => 'IPv6')

))->setHelp('Select the protocol to use');

$section->addInput(new Form_Select(

	'sourceip',

	'Source Address',

	$pconfig['sourceip'],

	create_sourceaddresslist()

))->setHelp('Select source address for the trace');

$section->addInput(new Form_Select(

	'ttl',

	'Maximum nuber of hops',

	$ttl,

	array_combine(range(1, MAX_TTL), range(1, MAX_TTL))

))->setHelp('Select the maximum number of network hops to trace');

$section->addInput(new Form_Checkbox(

	'resolve',

	'Reverse Address Lookup',

	'',

	$resolve

))->setHelp('When checked, traceroute will attempt to perform a PTR lookup to locate hostnames for hops along the path. This will slow down the process as it has to wait for DNS replies.');

$section->addInput(new Form_Checkbox(

	'useicmp',

	gettext("Use ICMP"),

	'',

	$useicmp

))->setHelp('By default, traceroute uses UDP but that may be blocked by some routers. Check this box to use ICMP instead, which may succeed. ');

$form->add($section);

print $form;

/* Show the traceroute results */

if (!$input_errors && $do_traceroute) {

	$useicmp = isset($_REQUEST['useicmp']) ? "-I" : "";

	$n = isset($resolve) ? "" : "-n";

	$command = "/usr/sbin/traceroute";

	if ($ipproto == "ipv6") {

		$command .= "6";

		$ifaddr = is_ipaddr($sourceip) ? $sourceip : get_interface_ipv6($sourceip);

	} else {

		$ifaddr = is_ipaddr($sourceip) ? $sourceip : get_interface_ip($sourceip);

	}

	if ($ifaddr && (is_ipaddr($host) || is_hostname($host))) {

		$srcip = "-s " . escapeshellarg($ifaddr);

	}

	$cmd = "{$command} {$n} {$srcip} -w 2 {$useicmp} -m " . escapeshellarg($ttl) . " " . escapeshellarg($host);

?>

	<div class="panel panel-default">

		<div class="panel-heading"><h2 class="panel-title">Results</h2></div>

		<div class="panel-body">

<?php

		if ($result = shell_exec($cmd))

			print(nl2br($result));

		else

			print('Error: ' . $host . ' ' . gettext("could not be traced/resolved"));

?>

		</div>

	</div>

<?php

}

include("foot.inc");

?>