pfSense

<?php

/*

	diag_traceroute.php

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

	Copyright (C) 2013-2015 Electric Sheep Fencing, LP

	Copyright (C) 2005 Paul Taylor (paultaylor@winndixie.com) and 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:	/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);

$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)

		$list[$sipname[value]] = $sipname[name];

	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'];

	$do_traceroute = true;

	$ttl = $_REQUEST['ttl'];

	$resolve = $_REQUEST['resolve'];

	$useicmp = $_REQUEST['useicmp'];

} else {

	$resolve = false;

	$useicmp = false;

}

if (!isset($do_traceroute)) {

	$do_traceroute = false;

	$host = '';

	$ttl = DEFAULT_TTL;

}

if ($input_errors)

	print_input_errors($input_errors);

require('classes/Form.class.php');

$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['protocol'],

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

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

$section->addInput(new Form_Select(

	'sourceip',

	'Source Address',

	$pconfig['source'],

	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. 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">Results</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");

?>