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<?php
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/*
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diag_testport.php
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Copyright (C) 2013 Jim P (jimp@pfsense.org)
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All rights reserved.
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Portions based on diag_ping.php
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part of m0n0wall (http://m0n0.ch/wall)
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Copyright (C) 2003-2005 Bob Zoller (bob@kludgebox.com) and Manuel Kasper <mk@neon1.net>.
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All rights reserved.
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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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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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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, 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 OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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pfSense_BUILDER_BINARIES: /usr/bin/nc
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pfSense_MODULE: routing
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*/
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##|+PRIV
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##|*IDENT=page-diagnostics-testport
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##|*NAME=Diagnostics: Test Port
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##|*DESCR=Allow access to the 'Diagnostics: Test Port' page.
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##|*MATCH=diag_testport.php*
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##|-PRIV
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$allowautocomplete = true;
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$pgtitle = array(gettext("Diagnostics"), gettext("Test Port"));
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require("guiconfig.inc");
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define('NC_TIMEOUT', 10);
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if ($_POST || $_REQUEST['host']) {
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unset($input_errors);
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unset($do_testport);
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/* input validation */
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$reqdfields = explode(" ", "host port");
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$reqdfieldsn = array(gettext("Host"),gettext("Port"));
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do_input_validation($_REQUEST, $reqdfields, $reqdfieldsn, $input_errors);
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if (!is_ipaddr($_REQUEST['host']) && !is_hostname($_REQUEST['host'])) {
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$input_errors[] = gettext("Please enter a valid IP or hostname.");
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}
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if (!is_port($_REQUEST['port'])) {
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$input_errors[] = gettext("Please enter a valid port number.");
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}
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if (!is_numeric($_REQUEST['srcport']) || !is_port($_REQUEST['srcport'])) {
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$input_errors[] = gettext("Please enter a valid source port number, or leave the field blank.");
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}
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if (is_ipaddrv4($_REQUEST['host']) && ($_REQUEST['ipprotocol'] == "ipv6")) {
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$input_errors[] = gettext("You cannot connect to an IPv4 address using IPv6.");
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}
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if (is_ipaddrv6($_REQUEST['host']) && ($_REQUEST['ipprotocol'] == "ipv4")) {
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$input_errors[] = gettext("You cannot connect to an IPv6 address using IPv4.");
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}
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if (!$input_errors) {
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$do_testport = true;
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$host = $_REQUEST['host'];
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$sourceip = $_REQUEST['sourceip'];
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$port = $_REQUEST['port'];
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$srcport = $_REQUEST['srcport'];
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$showtext = isset($_REQUEST['showtext']);
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$ipprotocol = $_REQUEST['ipprotocol'];
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$timeout = NC_TIMEOUT;
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}
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}
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if (!isset($do_testport)) {
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$do_testport = false;
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$host = '';
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$port = '';
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$srcport = '';
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unset($showtext);
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}
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include("head.inc"); ?>
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<body link="#000000" vlink="#000000" alink="#000000">
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<?php include("fbegin.inc"); ?>
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<table width="100%" border="0" cellpadding="0" cellspacing="0" summary="diag test port">
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<tr><td>
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<?php echo gettext("This page allows you to perform a simple TCP connection test to determine if a host is up and accepting connections on a given port. This test does not function for UDP since there is no way to reliably determine if a UDP port accepts connections in this manner."); ?>
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<br /><br />
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<?php echo gettext("No data is transmitted to the remote host during this test, it will only attempt to open a connection and optionally display the data sent back from the server."); ?>
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<br /><br /><br />
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<?php if ($input_errors) print_input_errors($input_errors); ?>
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<form action="diag_testport.php" method="post" name="iform" id="iform">
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<table width="100%" border="0" cellpadding="6" cellspacing="0" summary="main area">
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<tr>
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<td colspan="2" valign="top" class="listtopic"><?=gettext("Test Port"); ?></td>
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</tr>
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<tr>
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<td width="22%" valign="top" class="vncellreq"><?=gettext("Host"); ?></td>
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<td width="78%" class="vtable">
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<?=$mandfldhtml;?>
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<input name="host" type="text" class="formfld" id="host" size="20" value="<?=htmlspecialchars($host);?>" /></td>
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</tr>
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<tr>
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<td width="22%" valign="top" class="vncellreq"><?= gettext("Port"); ?></td>
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<td width="78%" class="vtable">
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<input name="port" type="text" class="formfld" id="port" size="10" value="<?=htmlspecialchars($port);?>" />
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</td>
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</tr>
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<tr>
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<td width="22%" valign="top" class="vncell"><?= gettext("Source Port"); ?></td>
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<td width="78%" class="vtable">
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<input name="srcport" type="text" class="formfld" id="srcport" size="10" value="<?=htmlspecialchars($srcport);?>" />
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<br /><br /><?php echo gettext("This should typically be left blank."); ?>
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</td>
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</tr>
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<tr>
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<td width="22%" valign="top" class="vncell"><?= gettext("Show Remote Text"); ?></td>
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<td width="78%" class="vtable">
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<input name="showtext" type="checkbox" id="showtext" <?php if ($showtext) echo "checked=\"checked\"" ?> />
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<br /><br /><?php echo gettext("Shows the text given by the server when connecting to the port. Will take 10+ seconds to display if checked."); ?>
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</td>
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</tr>
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<tr>
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<td width="22%" valign="top" class="vncell"><?=gettext("Source Address"); ?></td>
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<td width="78%" class="vtable">
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<select name="sourceip" class="formselect">
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<option value="">Any</option>
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<?php $sourceips = get_possible_traffic_source_addresses(true);
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foreach ($sourceips as $sip):
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$selected = "";
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if (!link_interface_to_bridge($sip['value']) && ($sip['value'] == $sourceip))
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$selected = "selected=\"selected\"";
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?>
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<option value="<?=$sip['value'];?>" <?=$selected;?>>
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<?=htmlspecialchars($sip['name']);?>
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</option>
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<?php endforeach; ?>
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</select>
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</td>
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</tr>
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<tr>
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<td width="22%" valign="top" class="vncell"><?=gettext("IP Protocol"); ?></td>
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<td width="78%" class="vtable">
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<select name="ipprotocol" class="formfld">
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<option value="any" <?php if ("any" == $ipprotocol) echo "selected=\"selected\""; ?>>
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Any
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</option>
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<option value="ipv4" <?php if ($ipprotocol == "ipv4") echo "selected=\"selected\""; ?>>
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<?=gettext("IPv4");?>
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</option>
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<option value="ipv6" <?php if ($ipprotocol == "ipv6") echo "selected=\"selected\""; ?>>
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<?=gettext("IPv6");?>
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</option>
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</select>
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<br /><br />
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<?php echo gettext("If you force IPv4 or IPv6 and use a hostname that does not contain a result using that protocol, it will result in an error. For example if you force IPv4 and use a hostname that only returns an AAAA IPv6 IP address, it will not work."); ?>
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</td>
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</tr>
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<tr>
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<td width="22%" valign="top"> </td>
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<td width="78%">
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<input name="Submit" type="submit" class="formbtn" value="<?=gettext("Test"); ?>" />
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</td>
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</tr>
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<tr>
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<td valign="top" colspan="2">
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<?php if ($do_testport) {
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echo "<font face=\"terminal\" size=\"2\">";
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echo "<strong>" . gettext("Port Test Results") . ":</strong><br />";
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?>
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<script type="text/javascript">
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//<![CDATA[
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window.onload=function(){
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document.getElementById("testportCaptured").wrap='off';
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}
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//]]>
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</script>
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<?php
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echo "<textarea id=\"testportCaptured\" style=\"width:98%\" name=\"code\" rows=\"15\" cols=\"66\" readonly=\"readonly\">";
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$result = "";
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$nc_base_cmd = "/usr/bin/nc";
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$nc_args = "-w " . escapeshellarg($timeout);
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if (!$showtext)
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$nc_args .= " -z ";
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if (!empty($srcport))
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$nc_args .= " -p " . escapeshellarg($srcport) . " ";
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/* Attempt to determine the interface address, if possible. Else try both. */
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if (is_ipaddrv4($host)) {
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$ifaddr = ($sourceip == "any") ? "" : get_interface_ip($sourceip);
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$nc_args .= " -4";
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} elseif (is_ipaddrv6($host)) {
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if ($sourceip == "any")
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$ifaddr = "";
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else if (is_linklocal($sourceip))
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$ifaddr = $sourceip;
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else
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$ifaddr = get_interface_ipv6($sourceip);
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$nc_args .= " -6";
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} else {
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switch ($ipprotocol) {
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case "ipv4":
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$ifaddr = get_interface_ip($sourceip);
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$nc_ipproto = " -4";
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break;
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case "ipv6":
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$ifaddr = (is_linklocal($sourceip) ? $sourceip : get_interface_ipv6($sourceip));
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$nc_ipproto = " -6";
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break;
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case "any":
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$ifaddr = get_interface_ip($sourceip);
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$nc_ipproto = (!empty($ifaddr)) ? " -4" : "";
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if (empty($ifaddr)) {
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$ifaddr = (is_linklocal($sourceip) ? $sourceip : get_interface_ipv6($sourceip));
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$nc_ipproto = (!empty($ifaddr)) ? " -6" : "";
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}
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break;
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}
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/* Netcat doesn't like it if we try to connect using a certain type of IP without specifying the family. */
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if (!empty($ifaddr)) {
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$nc_args .= $nc_ipproto;
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} elseif ($sourceip == "any") {
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switch ($ipprotocol) {
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case "ipv4":
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$nc_ipproto = " -4";
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break;
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case "ipv6":
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$nc_ipproto = " -6";
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break;
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}
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$nc_args .= $nc_ipproto;
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}
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}
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/* Only add on the interface IP if we managed to find one. */
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if (!empty($ifaddr)) {
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$nc_args .= " -s " . escapeshellarg($ifaddr) . " ";
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$scope = get_ll_scope($ifaddr);
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if (!empty($scope) && !strstr($host, "%"))
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$host .= "%{$scope}";
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}
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$nc_cmd = "{$nc_base_cmd} {$nc_args} " . escapeshellarg($host) . " " . escapeshellarg($port) . " 2>&1";
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exec($nc_cmd, $result, $retval);
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//echo "NC CMD: {$nc_cmd}\n\n";
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if (empty($result)) {
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if ($showtext)
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echo gettext("No output received, or connection failed. Try with \"Show Remote Text\" unchecked first.");
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else
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echo gettext("Connection failed (Refused/Timeout)");
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} else {
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if (is_array($result)) {
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foreach ($result as $resline) {
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echo htmlspecialchars($resline) . "\n";
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}
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} else {
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echo htmlspecialchars($result);
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}
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}
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echo '</textarea> </font>' ;
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}
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?>
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</td>
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</tr>
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</table>
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</form>
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</td></tr></table>
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<?php include("fend.inc"); ?>
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</body>
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</html>
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