pfSense

#!/usr/local/bin/php

	firewall_nat_edit.php

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

	All rights reserved.

	modification, are permitted provided that the following conditions are met:

	   this list of conditions and the following disclaimer.

	   notice, this list of conditions and the following disclaimer in the

	   documentation and/or other materials provided with the distribution.

	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.

*/

require("guiconfig.inc");

if (!is_array($config['nat']['rule'])) {

	$config['nat']['rule'] = array();

}

$id = $_GET['id'];

if (isset($_POST['id']))

	$id = $_POST['id'];

if (isset($id) && $a_nat[$id]) {

	$pconfig['extaddr'] = $a_nat[$id]['external-address'];

	$pconfig['proto'] = $a_nat[$id]['protocol'];

	list($pconfig['beginport'],$pconfig['endport']) = explode("-", $a_nat[$id]['external-port']);

	$pconfig['localip'] = $a_nat[$id]['target'];

	$pconfig['localbeginport'] = $a_nat[$id]['local-port'];

	$pconfig['descr'] = $a_nat[$id]['descr'];

	$pconfig['interface'] = $a_nat[$id]['interface'];

	if (!$pconfig['interface'])

		$pconfig['interface'] = "wan";

} else {

	$pconfig['interface'] = "wan";

}

if ($_POST) {

	if ($_POST['beginport_cust'] && !$_POST['beginport'])

		$_POST['beginport'] = $_POST['beginport_cust'];

	if ($_POST['endport_cust'] && !$_POST['endport'])

		$_POST['endport'] = $_POST['endport_cust'];

	if ($_POST['localbeginport_cust'] && !$_POST['localbeginport'])

		$_POST['localbeginport'] = $_POST['localbeginport_cust'];

		$_POST['endport'] = $_POST['beginport'];

	$pconfig = $_POST;

	/* input validation */

	$reqdfields = explode(" ", "interface proto beginport localip localbeginport");

	$reqdfieldsn = explode(",", "Interface,Protocol,Start port,NAT IP,Local port");

		$input_errors[] = "The start port must be an integer between 1 and 65535.";

	}

	if (($_POST['endport'] && !is_port($_POST['endport']))) {

		$input_errors[] = "The end port must be an integer between 1 and 65535.";

	}

	if (($_POST['localbeginport'] && !is_port($_POST['localbeginport']))) {

		$input_errors[] = "The local port must be an integer between 1 and 65535.";

	}

	if (($_POST['localip'] && !is_ipaddroralias($_POST['localip']))) {

		$input_errors[] = "A valid NAT IP address or host alias must be specified.";

	}

		/* swap */

		$tmp = $_POST['endport'];

		$_POST['endport'] = $_POST['beginport'];

		$_POST['beginport'] = $tmp;

	}

		if (($_POST['endport'] - $_POST['beginport'] + $_POST['localbeginport']) > 65535)

			$input_errors[] = "The target port range must lie between 1 and 65535.";

	}

	foreach ($a_nat as $natent) {

		if (isset($id) && ($a_nat[$id]) && ($a_nat[$id] === $natent))

			continue;

		if ($natent['interface'] != $_POST['interface'])

			continue;

		if ($natent['external-address'] != $_POST['extaddr'])

			continue;

		if (!$endp)

			$endp = $begp;

		      || (($_POST['beginport'] > $endp) && ($_POST['endport'] > $endp)))) {

			break;

		}

	}

	if (!$input_errors) {

		$natent = array();

		if ($_POST['extaddr'])

			$natent['external-address'] = $_POST['extaddr'];

		$natent['protocol'] = $_POST['proto'];

			$natent['external-port'] = $_POST['beginport'];

		else

			$natent['external-port'] = $_POST['beginport'] . "-" . $_POST['endport'];

		$natent['local-port'] = $_POST['localbeginport'];

		$natent['interface'] = $_POST['interface'];

		$natent['descr'] = $_POST['descr'];

			$a_nat[$id] = $natent;

		else

			$a_nat[] = $natent;

			/* auto-generate a matching firewall rule */

			$filterent['protocol'] = $_POST['proto'];

			$filterent['source']['any'] = "";

			$filterent['destination']['address'] = $_POST['localip'];

			$dstpto = $dstpfrom + $_POST['endport'] - $_POST['beginport'];

				$filterent['destination']['port'] = $dstpfrom;

			else

				$filterent['destination']['port'] = $dstpfrom . "-" . $dstpto;

		}

		exit;

	}

}

?>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

<head>

<link href="gui.css" rel="stylesheet" type="text/css">

<script language="JavaScript">

<!--

function ext_change() {

	if (document.iform.beginport.selectedIndex == 0) {

		document.iform.beginport_cust.disabled = 0;

	} else {

		document.iform.beginport_cust.value = "";

		document.iform.beginport_cust.disabled = 1;

	}

	if (document.iform.endport.selectedIndex == 0) {

		document.iform.endport_cust.disabled = 0;

	} else {

		document.iform.endport_cust.value = "";

		document.iform.endport_cust.disabled = 1;

	}

	if (document.iform.localbeginport.selectedIndex == 0) {

		document.iform.localbeginport_cust.disabled = 0;

	} else {

		document.iform.localbeginport_cust.value = "";

		document.iform.localbeginport_cust.disabled = 1;

	}

}

function ext_rep_change() {

	document.iform.endport.selectedIndex = document.iform.beginport.selectedIndex;

	document.iform.localbeginport.selectedIndex = document.iform.beginport.selectedIndex;

}

//-->

</script>

</head>

<body link="#0000CC" vlink="#0000CC" alink="#0000CC">

<?php include("fbegin.inc"); ?>

            <form action="firewall_nat_edit.php" method="post" name="iform" id="iform">

              <table width="100%" border="0" cellpadding="6" cellspacing="0">

			  	<tr>

                  <td width="22%" valign="top" class="vncellreq">Interface</td>

                  <td width="78%" class="vtable">

					<select name="interface" class="formfld">

						<?php

							$interfaces['opt' . $i] = $config['interfaces']['opt' . $i]['descr'];

						}

						foreach ($interfaces as $iface => $ifacename): ?>

						<option value="<?=$iface;?>" <?php if ($iface == $pconfig['interface']) echo "selected"; ?>>

						<?=htmlspecialchars($ifacename);?>

						</option>

						<?php endforeach; ?>

					</select><br>

                     <span class="vexpl">Choose which interface this rule applies to.<br>

                     Hint: in most cases, you'll want to use WAN here.</span></td>

                </tr>

					  <option value="" <?php if (!$pconfig['extaddr']) echo "selected"; ?>>Interface address</option>

                      <?php

					  if (is_array($config['nat']['servernat'])):

						  foreach ($config['nat']['servernat'] as $sn): ?>

                      <option value="<?=$sn['ipaddr'];?>" <?php if ($sn['ipaddr'] == $pconfig['extaddr']) echo "selected"; ?>><?=htmlspecialchars("{$sn['ipaddr']} ({$sn['descr']})");?></option>

                      <?php endforeach; endif; ?>

                    </select><br>

                    <span class="vexpl">

					If you want this rule to apply to another IP address than the IP address of the interface chosen above,

					select it here (you need to define IP addresses on the

					<a href="firewall_nat_server.php">Server NAT</a> page first).</span></td>

                </tr>

                      <?php $protocols = explode(" ", "TCP UDP TCP/UDP"); foreach ($protocols as $proto): ?>

                      <option value="<?=strtolower($proto);?>" <?php if (strtolower($proto) == $pconfig['proto']) echo "selected"; ?>><?=htmlspecialchars($proto);?></option>

                      <?php endforeach; ?>

                    Hint: in most cases, you should specify <em>TCP</em> &nbsp;here.</span></td>

                </tr>

                  <td width="22%" valign="top" class="vncellreq">External port

                        <td><select name="beginport" class="formfld" onChange="ext_rep_change();ext_change()">

                            <option value="">(other)</option>

                            <?php $bfound = 0; foreach ($wkports as $wkport => $wkportdesc): ?>

                            <option value="<?=$wkport;?>" <?php if ($wkport == $pconfig['beginport']) {

																echo "selected";

																$bfound = 1;

															}?>>

							<?=htmlspecialchars($wkportdesc);?>

							</option>

                            <?php endforeach; ?>

                          </select> <input name="beginport_cust" type="text" size="5" value="<?php if (!$bfound) echo $pconfig['beginport']; ?>"></td>

                      </tr>

                        <td><select name="endport" class="formfld" onChange="ext_change()">

                            <option value="">(other)</option>

                            <?php $bfound = 0; foreach ($wkports as $wkport => $wkportdesc): ?>

                            <option value="<?=$wkport;?>" <?php if ($wkport == $pconfig['endport']) {

																echo "selected";

																$bfound = 1;

															}?>>

							<?=htmlspecialchars($wkportdesc);?>

							</option>

							<?php endforeach; ?>

                          </select> <input name="endport_cust" type="text" size="5" value="<?php if (!$bfound) echo $pconfig['endport']; ?>"></td>

                      </tr>

                    </table>

                </tr>

                    <input autocomplete='off' onblur='actb_removedisp()' onkeypress='return (event.keyCode!=13);' onkeydown='actb_checkkey(event, this)' onkeyup='actb_tocomplete(this,event,addressarray);' name="localip" type="text" class="formfldalias" id="localip" size="20" value="<?=htmlspecialchars($pconfig['localip']);?>">

                    <br> <span class="vexpl">Enter the internal IP address of

                    e.g. <em>192.168.1.12</em></span></td>

                </tr>

                      <option value="">(other)</option>

                      <?php $bfound = 0; foreach ($wkports as $wkport => $wkportdesc): ?>

                      <option value="<?=$wkport;?>" <?php if ($wkport == $pconfig['localbeginport']) {

																echo "selected";

																$bfound = 1;

															}?>>

					  <?=htmlspecialchars($wkportdesc);?>

					  </option>

                      <?php endforeach; ?>

                    IP address entered above. In case of a port range, specify

                    the beginning port of the range (the end port will be calculated

                    Hint: this is usually identical to the 'from' port above</span></td>

                </tr>

                    <input name="descr" type="text" class="formfld" id="descr" size="40" value="<?=htmlspecialchars($pconfig['descr']);?>">

                    <br> <span class="vexpl">You may enter a description here

                </tr><?php if (!(isset($id) && $a_nat[$id])): ?>

                </tr><?php endif; ?>

                    <input name="Submit" type="submit" class="formbtn" value="Save">

                  </td>

                </tr>

              </table>

</form>

<script language="JavaScript">

<!--

ext_change();

//-->

</script>

$isfirst = 0;

$aliases = "";

$addrisfirst = 0;

$aliasesaddr = "";

	foreach($config['aliases']['alias'] as $alias_name) {

		if(!stristr($alias_name['address'], ".")) {

			if($isfirst == 1) $aliases .= ",";

			$aliases .= "'" . $alias_name['name'] . "'";

			$isfirst = 1;

		} else {

			if($addrisfirst == 1) $aliasesaddr .= ",";

			$aliasesaddr .= "'" . $alias_name['name'] . "'";

			$addrisfirst = 1;

		}

?>

<script language="JavaScript">

<!--

var addressarray=new Array(<?php echo $aliasesaddr; ?>);

var customarray=new Array(<?php echo $aliases; ?>);

//-->

</script>

<script type="text/javascript" language="javascript" src="auto_complete_helper.js">

</script>

</body>

</html>