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#!/usr/local/bin/php
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<?php
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/*
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firewall_nat.php
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Copyright (C) 2004 Scott Ullrich
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All rights reserved.
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originally part of m0n0wall (http://m0n0.ch/wall)
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Copyright (C) 2003-2004 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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require("guiconfig.inc");
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if (!is_array($config['nat']['rule'])) {
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$config['nat']['rule'] = array();
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}
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nat_rules_sort();
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$a_nat = &$config['nat']['rule'];
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if ($_POST) {
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$pconfig = $_POST;
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if ($_POST['apply']) {
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$retval = 0;
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if (!file_exists($d_sysrebootreqd_path)) {
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config_lock();
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$retval |= filter_configure();
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config_unlock();
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}
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$savemsg = get_std_save_message($retval);
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if ($retval == 0) {
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if (file_exists($d_natconfdirty_path))
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unlink($d_natconfdirty_path);
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if (file_exists($d_filterconfdirty_path))
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unlink($d_filterconfdirty_path);
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}
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}
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}
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if ($_GET['act'] == "del") {
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if ($a_nat[$_GET['id']]) {
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unset($a_nat[$_GET['id']]);
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write_config();
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touch($d_natconfdirty_path);
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header("Location: firewall_nat.php");
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exit;
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}
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}
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?>
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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<title><?=gentitle("Firewall: NAT");?></title>
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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
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<link href="gui.css" rel="stylesheet" type="text/css">
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</head>
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<body link="#0000CC" vlink="#0000CC" alink="#0000CC">
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<?php include("fbegin.inc"); ?>
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<p class="pgtitle">Firewall: NAT</font></p>
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<form action="firewall_nat.php" method="post">
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<?php if ($savemsg) print_info_box($savemsg); ?>
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<?php if (file_exists($d_natconfdirty_path)): ?><p>
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<?php print_info_box_np("The NAT configuration has been changed.<br>You must apply the changes in order for them to take effect.");?><br>
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<input name="apply" type="submit" class="formbtn" id="apply" value="Apply changes"></p>
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<?php endif; ?>
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<table width="100%" border="0" cellpadding="0" cellspacing="0">
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<tr><td>
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<ul id="tabnav">
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<li class="tabact">Inbound</li>
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<li class="tabinact"><a href="firewall_nat_server.php">Server NAT</a></li>
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<li class="tabinact"><a href="firewall_nat_1to1.php">1:1</a></li>
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<li class="tabinact"><a href="firewall_nat_out.php">Outbound</a></li>
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<li class="tabinact"><a href="firewall_nat_out_load_balancing.php">Outbound Load Balancing</a></li>
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</ul>
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</td></tr>
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<tr>
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<td class="tabcont">
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<table width="100%" border="0" cellpadding="0" cellspacing="0">
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<tr>
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<td width="5%" class="listhdrr">If</td>
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<td width="5%" class="listhdrr">Proto</td>
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<td width="20%" class="listhdrr">Ext. port range</td>
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<td width="20%" class="listhdrr">NAT IP</td>
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<td width="20%" class="listhdrr">Int. port range</td>
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<td width="20%" class="listhdr">Description</td>
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<td width="5%" class="list"></td>
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</tr>
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<?php $i = 0; foreach ($a_nat as $natent): ?>
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<tr valign="top">
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<td class="listlr">
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<?php
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if (!$natent['interface'] || ($natent['interface'] == "wan"))
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echo "WAN";
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else
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echo "<font color=\"#FFFFFF\">" . htmlspecialchars($config['interfaces'][$natent['interface']]['descr']);
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?>
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</td>
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<td class="listr">
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<?=strtoupper($natent['protocol']);?>
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</td>
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<td class="listr">
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<?php
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list($beginport, $endport) = split("-", $natent['external-port']);
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if ((!$endport) || ($beginport == $endport)) {
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echo $beginport;
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if ($wkports[$beginport])
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echo " (" . $wkports[$beginport] . ")";
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} else
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echo $beginport . " - " . $endport;
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?>
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</td>
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<td class="listr">
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<?=$natent['target'];?>
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<?php if ($natent['external-address'])
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echo "<br>(ext.: " . $natent['external-address'] . ")";
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?>
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</td>
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<td class="listr">
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<?php if ((!$endport) || ($beginport == $endport)) {
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echo $natent['local-port'];
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if ($wkports[$natent['local-port']])
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echo " (" . $wkports[$natent['local-port']] . ")";
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} else
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echo $natent['local-port'] . " - " .
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($natent['local-port']+$endport-$beginport);
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?>
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</td>
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<td class="listbg"><font color="#FFFFFFF">
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<?=htmlspecialchars($natent['descr']);?>
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</td>
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<td valign="middle" class="list" nowrap> <a href="firewall_nat_edit.php?id=<?=$i;?>"><img src="e.gif" width="17" height="17" border="0"></a>
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<a href="firewall_nat.php?act=del&id=<?=$i;?>" onclick="return confirm('Do you really want to delete this rule?')"><img src="x.gif" width="17" height="17" border="0"></a></td>
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</tr>
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<?php $i++; endforeach; ?>
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<tr>
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<td class="list" colspan="6"></td>
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<td class="list"> <a href="firewall_nat_edit.php"><img src="plus.gif" width="17" height="17" border="0"></a></td>
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</tr>
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</table>
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<p><span class="vexpl"><span class="red"><strong>Note:<br>
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</strong></span>It is not possible to access NATed services
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using the WAN IP address from within LAN (or an optional
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network).</span></p></td>
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</tr>
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</table>
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</form>
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<?php include("fend.inc"); ?>
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</body>
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</html>
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