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<?php
/*
* diag_traceroute.php
*
* part of pfSense (https://www.pfsense.org)
* Copyright (c) 2004-2016 Rubicon Communications, LLC (Netgate)
* Copyright (c) 2005 Paul Taylor (paultaylor@winndixie.com)
* All rights reserved.
*
* originally based on 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.
*/
##|+PRIV
##|*IDENT=page-diagnostics-traceroute
##|*NAME=Diagnostics: Traceroute
##|*DESCR=Allow access to the 'Diagnostics: Traceroute' page.
##|*MATCH=diag_traceroute.php*
##|-PRIV
require_once("guiconfig.inc");
$allowautocomplete = true;
$pgtitle = array(gettext("Diagnostics"), gettext("Traceroute"));
include("head.inc");
/* Max TTL of both traceroute and traceroute6 is 255, but in practice more than
64 hops would most likely time out in the GUI. If a user requires a
traceroute that long, they can use the CLI. */
define('MAX_TTL', 64);
define('DEFAULT_TTL', 18);
// Set defaults in case they are not supplied.
$do_traceroute = false;
$host = '';
$ttl = DEFAULT_TTL;
$ipproto = 'ipv4';
$sourceip = 'any';
if ($_POST || $_REQUEST['host']) {
unset($input_errors);
/* 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.");
}
$sourceip = $_REQUEST['sourceip'];
$ttl = $_REQUEST['ttl'];
$resolve = $_REQUEST['resolve'];
$useicmp = $_REQUEST['useicmp'];
if ($_POST && !$input_errors) {
$do_traceroute = true;
}
} else {
$resolve = false;
$useicmp = false;
}
if ($input_errors) {
print_input_errors($input_errors);
}
/* Do the traceroute and show any error */
if ($do_traceroute) {
$useicmpparam = isset($useicmp) ? "-I" : "";
$n = isset($resolve) ? "" : "-n";
$command = "/usr/sbin/traceroute";
if ($ipproto == "ipv6") {
$command .= "6";
if (empty($n)) {
$n = "-l";
}
$ifaddr = is_ipaddr($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 {$useicmpparam} -m " . escapeshellarg($ttl) . " " . escapeshellarg($host);
$result = shell_exec($cmd);
if (!$result) {
print_info_box(sprintf(gettext('Error: %s could not be traced/resolved'), $host));
}
}
$form = new Form(false);
$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',
$ipproto,
array('ipv4' => 'IPv4', 'ipv6' => 'IPv6')
))->setHelp('Select the protocol to use.');
$section->addInput(new Form_Select(
'sourceip',
'*Source Address',
$sourceip,
array('any' => gettext('Any')) + get_possible_traffic_source_addresses(true)
))->setHelp('Select source address for the trace.');
$section->addInput(new Form_Select(
'ttl',
'Maximum number 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);
$form->addGlobal(new Form_Button(
'Submit',
'Traceroute',
null,
'fa-rss'
))->addClass('btn-primary');
print $form;
/* Show the traceroute results */
if ($do_traceroute && $result) {
?>
<div class="panel panel-default">
<div class="panel-heading"><h2 class="panel-title"><?=gettext('Results')?></h2></div>
<div class="panel-body">
<?php
print('<pre>' . $result . '</pre>');
?>
</div>
</div>
<?php
}
include("foot.inc");
?>
|
