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#!/usr/local/bin/php
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<?php
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/*
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firewall_nat_out.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($config['nat']['advancedoutbound']['rule']))
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$config['nat']['advancedoutbound']['rule'] = array();
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$a_out = &$config['nat']['advancedoutbound']['rule'];
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//nat_out_rules_sort();
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if ($_POST) {
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$pconfig = $_POST;
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if ($_POST['apply']) {
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write_config();
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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 (isset($_POST['save'])) {
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/* mutually exclusive settings - if user wants advanced NAT, we don't help with IPSec */
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if ($_POST['ipsecpassthru'] == true) {
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$config['nat']['ipsecpassthru']['enable'] = true;
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$config['nat']['advancedoutbound']['enable'] = false;
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}
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if ($_POST['advancedoutbound'] == true) {
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$config['nat']['advancedoutbound']['enable'] = true;
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$config['nat']['ipsecpassthru']['enable'] = false;
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}
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if ($_POST['ipsecpassthru'] == false)
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$config['nat']['ipsecpassthru']['enable'] = false;
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if ($_POST['advancedoutbound'] == false)
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$config['nat']['advancedoutbound']['enable'] = false;
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write_config();
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touch($d_natconfdirty_path);
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header("Location: firewall_nat_out.php");
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exit;
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}
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if (isset($_POST['del_x'])) {
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/* delete selected rules */
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if (is_array($_POST['rule']) && count($_POST['rule'])) {
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foreach ($_POST['rule'] as $rulei) {
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unset($a_out[$rulei]);
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}
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write_config();
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touch($d_natconfdirty_path);
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header("Location: firewall_nat_out.php");
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exit;
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}
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} else {
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/* yuck - IE won't send value attributes for image buttons, while Mozilla does - so we use .x/.y to find move button clicks instead... */
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unset($movebtn);
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foreach ($_POST as $pn => $pd) {
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if (preg_match("/move_(\d+)_x/", $pn, $matches)) {
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$movebtn = $matches[1];
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break;
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}
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}
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/* move selected rules before this rule */
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if (isset($movebtn) && is_array($_POST['rule']) && count($_POST['rule'])) {
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$a_out_new = array();
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/* copy all rules < $movebtn and not selected */
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for ($i = 0; $i < $movebtn; $i++) {
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if (!in_array($i, $_POST['rule']))
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$a_out_new[] = $a_out[$i];
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}
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/* copy all selected rules */
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for ($i = 0; $i < count($a_out); $i++) {
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if ($i == $movebtn)
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continue;
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if (in_array($i, $_POST['rule']))
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$a_out_new[] = $a_out[$i];
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}
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/* copy $movebtn rule */
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if ($movebtn < count($a_out))
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$a_out_new[] = $a_out[$movebtn];
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/* copy all rules > $movebtn and not selected */
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for ($i = $movebtn+1; $i < count($a_out); $i++) {
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if (!in_array($i, $_POST['rule']))
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$a_out_new[] = $a_out[$i];
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}
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$a_out = $a_out_new;
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write_config();
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touch($d_natconfdirty_path);
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header("Location: firewall_nat_out.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: Outbound");?></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: Outbound</p>
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<form action="firewall_nat_out.php" method="post" name="iform">
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<?php if ($savemsg) print_info_box($savemsg); ?>
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<?php if (file_exists($d_natconfdirty_path)): ?><p>
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<?php print_info_box_np("The NAT configuration has been changed.<br>You must apply the changes in order for them to take effect.");?><br>
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<input name="apply" type="submit" class="formbtn" id="apply" value="Apply changes"></p>
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<?php endif; ?>
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<table width="100%" border="0" cellpadding="0" cellspacing="0"> <tr><td>
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<ul id="tabnav">
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<li class="tabinact"><a href="firewall_nat.php">Inbound</a></li>
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<li class="tabinact"><a href="firewall_nat_server.php">Server NAT</a></li>
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<li class="tabinact"><a href="firewall_nat_1to1.php">1:1</a></li>
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<li class="tabact">Outbound</li>
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<li class="tabinact"><a href="firewall_nat_out_load_balancing.php">Outbound Load Balancing</a></li>
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</ul>
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</td></tr>
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<tr>
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<td class="tabcont">
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<table width="100%" border="0" cellpadding="6" cellspacing="0">
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<tr>
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<td class="vtable"><p>
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<input name="ipsecpassthru" type="checkbox" id="ipsecpassthru" value="yes" onClick="document.iform.advancedoutbound.checked=false" <?php if (isset($config['nat']['ipsecpassthru']['enable'])) echo "checked";?>>
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<strong>Enable IPSec passthru</strong></p>
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</td>
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</tr>
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<tr>
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<td class="vtable"><p>
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<input name="advancedoutbound" type="checkbox" id="advancedoutbound" value="yes" onClick="document.iform.ipsecpassthru.checked=false" <?php if (isset($config['nat']['advancedoutbound']['enable'])) echo "checked";?>>
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<strong>Enable advanced outbound NAT</strong></p></td>
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</tr>
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<tr>
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<td> <input name="save" type="submit" class="formbtn" value="Save">
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</td>
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</tr>
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<tr>
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<td colspan="2"><p><span class="vexpl"><span class="red"><strong>Note:<br>
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</strong></span>If advanced outbound NAT is enabled, no outbound NAT
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rules will be automatically generated anymore. Instead, only the mappings
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you specify below will be used. With advanced outbound NAT disabled,
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a mapping is automatically created for each interface's subnet
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(except WAN).</span> If you use target addresses other than the WAN interface's IP address, then depending on<span class="vexpl"> the way your WAN connection is setup, you may also need <a href="services_proxyarp.php">proxy ARP</a>.</span><br>
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<br>
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You may enter your own mappings below.</p>
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</td>
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</tr>
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</table>
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<br>
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<table width="100%" border="0" cellpadding="0" cellspacing="0">
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<tr>
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<td width="10%" class="listhdrr">Interface</td>
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<td width="20%" class="listhdrr">Source</td>
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<td width="20%" class="listhdrr">Source Port</td>
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<td width="20%" class="listhdrr">Destination</td>
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<td width="20%" class="listhdrr">NAT Port</td>
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<td width="20%" class="listhdrr">Target</td>
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<td width="25%" class="listhdr">Description</td>
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<td width="5%" class="list"></td>
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</tr>
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<?php $nnats = $i = 0; foreach ($a_out as $natent): ?>
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<tr>
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<td class="listlr">
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<?php
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if (!$natent['interface'] || ($natent['interface'] == "wan"))
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echo "WAN";
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else
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htmlspecialchars($config['interfaces'][$natent['interface']]['descr']);
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?>
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</td>
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<td class="listr">
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<?=$natent['source']['network'];?>
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</td>
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<td class="listr">
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<?php
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if (!$natent['sourceport'])
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echo "*";
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else
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echo $natent['sourceport'];
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?>
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</td>
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<td class="listr">
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<?php
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if (isset($natent['destination']['any']))
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echo "*";
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else {
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if (isset($natent['destination']['not']))
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echo "! ";
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echo $natent['destination']['network'];
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}
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?>
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</td>
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<td class="listr">
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<?php
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if (!$natent['natport'])
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echo "*";
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else
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echo $natent['natport'];
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?>
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</td>
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<td class="listr">
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<?php
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if (!$natent['target'])
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echo "*";
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else
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echo $natent['target'];
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?>
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</td>
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<td class="listbg">
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<font color="#FFFFFF"><?=htmlspecialchars($natent['descr']);?>
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</td>
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<td class="list" valign="middle" nowrap>
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<table border="0" cellspacing="0" cellpadding="1">
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<tr>
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<td><a href="firewall_nat_out_edit.php?id=<?=$i;?>"><img src="e.gif" width="17" height="17" border="0"></a></td>
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<td><input type="checkbox" name="rule[]" value="<?=$i;?>" style="margin: 0; padding: 0; width: 15px; height: 15px;"></td>
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</tr>
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<tr>
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<td><input onmouseover="fr_insline(0, true)" onmouseout="fr_insline(0, false)" name="move_<?=$i;?>" src="left.gif" title="move selected rules before this rule" height="17" type="image" width="17" border="0"></td>
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<!-- <billm><td><a href="firewall_nat_out_edit.php?dup=<?=$i;?>"><img src="plus.gif" title="add a new nat based on this one" width="17" height="17" border="0"></a></td><billm> -->
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</tr>
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</table>
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<?php $i++; $nnats++; endforeach; ?>
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<tr>
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<td class="list" colspan="7"></td>
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<td class="list" valign="middle" nowrap>
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<table border="0" cellspacing="0" cellpadding="1">
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<tr>
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<td><?php if ($nnats == 0): ?><img src="left_d.gif" width="17" height="17" title="move selected mappings to end" border="0"><?php else: ?><input name="move_<?=$i;?>" type="image" src="left.gif" width="17" height="17" title="move selected mappings to end" border="0"><?php endif; ?></td>
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<td><a href="firewall_nat_out_edit.php"><img src="plus.gif" width="17" height="17" border="0"></a></td>
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</tr>
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<tr>
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<td><?php if ($nnats == 0): ?><img src="x_d.gif" width="17" height="17" title="delete selected rules" border="0"><?php else: ?><input name="del" type="image" src="x.gif" width="17" height="17" title="delete selected mappings" onclick="return confirm('Do you really want to delete the selected mappings?')"><?php endif; ?></td>
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</tr>
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</table></td>
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</tr>
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</table>
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</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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