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425 lines
16 KiB
PHP
Executable File
425 lines
16 KiB
PHP
Executable File
<?php
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/* $Id$ */
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/*
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firewall_virtual_ip_edit.php
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part of pfSense (http://www.pfsense.com/)
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Copyright (C) 2005 Bill Marquette <bill.marquette@gmail.com>.
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All rights reserved.
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Includes code from m0n0wall which is:
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Copyright (C) 2003-2005 Manuel Kasper <mk@neon1.net>.
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All rights reserved.
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Includes code from pfSense which is:
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Copyright (C) 2004-2005 Scott Ullrich <geekgod@pfsense.com>.
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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($config['virtualip']['vip'])) {
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$config['virtualip']['vip'] = array();
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}
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$a_vip = &$config['virtualip']['vip'];
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if (isset($_POST['id']))
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$id = $_POST['id'];
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else
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$id = $_GET['id'];
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function return_first_two_octets($ip) {
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$ip_split = split("\.", $ip);
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return $ip_split[0] . "." . $ip_split[1];
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}
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if (isset($id) && $a_vip[$id]) {
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$pconfig['mode'] = $a_vip[$id]['mode'];
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$pconfig['vhid'] = $a_vip[$id]['vhid'];
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$pconfig['advskew'] = $a_vip[$id]['advskew'];
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$pconfig['password'] = $a_vip[$id]['password'];
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$pconfig['range'] = $a_vip[$id]['range'];
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$pconfig['subnet'] = $a_vip[$id]['subnet'];
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$pconfig['subnet_bits'] = $a_vip[$id]['subnet_bits'];
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$pconfig['descr'] = $a_vip[$id]['descr'];
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$pconfig['type'] = $a_vip[$id]['type'];
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$pconfig['interface'] = $a_vip[$id]['interface'];
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}
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if ($_POST) {
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unset($input_errors);
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$pconfig = $_POST;
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/* input validation */
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$reqdfields = explode(" ", "mode");
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$reqdfieldsn = explode(",", "Type");
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do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors);
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if (($_POST['subnet'] && !is_ipaddr($_POST['subnet'])))
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$input_errors[] = "A valid IP address must be specified.";
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if ($_POST['ipaddr'] == $config['interfaces']['wan']['ipaddr'])
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$input_errors[] = "The WAN IP address may not be used in a virtual entry.";
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if ($_POST['ipaddr'] == $config['interfaces']['lan']['ipaddr'])
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$input_errors[] = "The LAN IP address may not be used in a virtual entry.";
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if($_POST['subnet_bits'] == "32" and $_POST['type'] == "carp")
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$input_errors[] = "The /32 subnet mask is invalid for CARP IP's.";
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/* check for overlaps with other virtual IP */
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foreach ($a_vip as $vipent) {
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if (isset($id) && ($a_vip[$id]) && ($a_vip[$id] === $vipent))
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continue;
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if (isset($_POST['subnet']) && $_POST['subnet'] == $vipent['subnet']) {
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$input_errors[] = "There is already a virtual IP entry for the specified IP address.";
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break;
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}
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}
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/* check for overlaps with 1:1 NAT */
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if (is_array($config['nat']['onetoone'])) {
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foreach ($config['nat']['onetoone'] as $natent) {
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if (check_subnets_overlap($_POST['ipaddr'], 32, $natent['external'], $natent['subnet'])) {
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$input_errors[] = "A 1:1 NAT mapping overlaps with the specified IP address.";
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break;
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}
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}
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}
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/* make sure new ip is within the subnet of a valid ip
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* on one of our interfaces (wan, lan optX)
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*/
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if ($_POST['mode'] == "carp") {
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if(!$id) {
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/* verify against reusage of vhids */
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foreach($config['virtualip']['vip'] as $vip) {
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if($vip['vhid'] == $_POST['vhid'])
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$input_errors[] = "VHID {$_POST['vhid']} is already in use. Pick a unique number.";
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}
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}
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if($_POST['password'] == "")
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$input_errors[] = "You must specify a CARP password that is shared between the two VHID members.";
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$can_post = true;
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$found = false;
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$subnet_ip = return_first_two_octets($_POST['subnet']);
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$iflist = array("lan", "wan");
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for ($i = 1; isset($config['interfaces']['opt' . $i]); $i++)
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$iflist['opt' . $i] = 'opt' . $i;
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foreach($iflist as $if) {
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$ww_subnet_ip = return_first_two_octets($config['interfaces'][$if]['ipaddr']);
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$ww_subnet_bits = return_first_two_octets($config['interfaces'][$if]['subnet']);
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if($ww_subnet_ip == $subnet_ip and $ww_subnet_bits == $_POST['subnet_bits']) {
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$found = true;
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break;
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}
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}
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if($found == false) {
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$cannot_find = $_POST['subnet'] . "/" . $_POST['subnet_bits'] ;
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$can_post = false;
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}
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if($can_post == false)
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$input_errors[] = "Sorry, we could not locate an interface with a matching subnet for {$cannot_find}. Please add an ip in this subnet on a real interface.";
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}
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if (!$input_errors) {
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$vipent = array();
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$vipent['mode'] = $_POST['mode'];
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$vipent['interface'] = $_POST['interface'];
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/* ProxyARP specific fields */
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if ($_POST['mode'] === "proxyarp") {
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if ($_POST['type'] == "range") {
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$vipent['range']['from'] = $_POST['range_from'];
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$vipent['range']['to'] = $_POST['range_to'];
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}
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}
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/* CARP specific fields */
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if ($_POST['mode'] === "carp") {
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$vipent['vhid'] = $_POST['vhid'];
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$vipent['advskew'] = $_POST['advskew'];
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$vipent['password'] = $_POST['password'];
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}
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/* Common fields */
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$vipent['descr'] = $_POST['descr'];
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if (isset($_POST['type']))
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$vipent['type'] = $_POST['type'];
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else
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$vipent['type'] = "single";
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if ($vipent['type'] == "single" || $vipent['type'] == "network") {
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if (!isset($_POST['subnet_bits'])) {
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$vipent['subnet_bits'] = "32";
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} else {
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$vipent['subnet_bits'] = $_POST['subnet_bits'];
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}
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$vipent['subnet'] = $_POST['subnet'];
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}
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if (isset($id) && $a_vip[$id]) {
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/* modify all virtual IP rules with this address */
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for ($i = 0; isset($config['nat']['rule'][$i]); $i++) {
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if ($config['nat']['rule'][$i]['external-address'] == $a_vip[$id]['subnet'])
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$config['nat']['rule'][$i]['external-address'] = $vipent['subnet'];
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}
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$a_vip[$id] = $vipent;
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} else
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$a_vip[] = $vipent;
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touch($d_vipconfdirty_path);
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write_config();
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header("Location: firewall_virtual_ip.php");
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exit;
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}
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}
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$pgtitle = "Firewall: Virtual IP Address: Edit";
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include("head.inc");
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?>
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<body link="#0000CC" vlink="#0000CC" alink="#0000CC">
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<?php include("fbegin.inc"); ?>
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<p class="pgtitle"><?=$pgtitle?></p>
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<script language="JavaScript">
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<!--
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function get_radio_value(obj)
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{
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for (i = 0; i < obj.length; i++) {
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if (obj[i].checked)
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return obj[i].value;
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}
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return null;
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}
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function enable_change(enable_over) {
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var note = document.getElementById("typenote");
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var carpnote = document.createTextNode("This should be the correct netmask.");
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var proxyarpnote = document.createTextNode("This is a CIDR block of proxy ARP addresses.");
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if ((get_radio_value(document.iform.mode) == "carp") || enable_over) {
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document.iform.vhid.disabled = 0;
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document.iform.password.disabled = 0;
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document.iform.advskew.disabled = 0;
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document.iform.type.disabled = 1;
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document.iform.subnet_bits.disabled = 0;
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if (note.firstChild == null) {
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note.appendChild(carpnote);
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} else {
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note.removeChild(note.firstChild);
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note.appendChild(carpnote);
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}
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} else {
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document.iform.vhid.disabled = 1;
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document.iform.password.disabled = 1;
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document.iform.advskew.disabled = 1;
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document.iform.type.disabled = 0;
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document.iform.subnet_bits.disabled = 1;
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if (note.firstChild == null) {
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note.appendChild(proxyarpnote);
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} else {
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note.removeChild(note.firstChild);
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note.appendChild(proxyarpnote);
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}
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}
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if (get_radio_value(document.iform.mode) == "other") {
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document.iform.type.disabled = 1;
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if (note.firstChild != null) {
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note.removeChild(note.firstChild);
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}
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}
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}
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function typesel_change() {
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switch (document.iform.type.selectedIndex) {
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case 0: // single
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document.iform.subnet.disabled = 0;
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if((get_radio_value(document.iform.mode) == "proxyarp")) document.iform.subnet_bits.disabled = 1;
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//document.iform.range_from.disabled = 1;
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//document.iform.range_to.disabled = 1;
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break;
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case 1: // network
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document.iform.subnet.disabled = 0;
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document.iform.subnet_bits.disabled = 0;
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//document.iform.range_from.disabled = 1;
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//document.iform.range_to.disabled = 1;
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break;
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case 2: // range
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document.iform.subnet.disabled = 1;
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document.iform.subnet_bits.disabled = 1;
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//document.iform.range_from.disabled = 0;
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//document.iform.range_to.disabled = 0;
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break;
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}
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}
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//-->
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</script>
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<?php if ($input_errors) print_input_errors($input_errors); ?>
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<form action="firewall_virtual_ip_edit.php" method="post" name="iform" id="iform">
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<table width="100%" border="0" cellpadding="6" cellspacing="0">
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<tr>
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<td width="22%" valign="top" class="vncellreq">Type</td>
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<td width="78%" class="vtable">
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<input name="mode" type="radio" onclick="enable_change(false)" value="proxyarp"
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<?php if ($pconfig['mode'] == "proxyarp" || $pconfig['type'] != "carp") echo "checked";?>> Proxy ARP
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<input name="mode" type="radio" onclick="enable_change(false)" value="carp"
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<?php if ($pconfig['mode'] == "carp") echo "checked";?>> CARP
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<input name="mode" type="radio" onclick="enable_change(false)" value="other"
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<?php if ($pconfig['mode'] == "other") echo "checked";?>> Other
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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="vncellreq">Interface</td>
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<td width="78%" class="vtable">
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<select name="interface" class="formfld">
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<?php $interfaces = array('wan' => 'WAN', 'lan' => 'LAN');
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for ($i = 1; isset($config['interfaces']['opt' . $i]); $i++) {
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$interfaces['opt' . $i] = $config['interfaces']['opt' . $i]['descr'];
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}
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foreach ($interfaces as $iface => $ifacename): ?>
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<option value="<?=$iface;?>" <?php if ($iface == $pconfig['interface']) echo "selected"; ?>>
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<?=htmlspecialchars($ifacename);?>
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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 valign="top" class="vncellreq">IP Address(es)</td>
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<td class="vtable">
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<table border="0" cellspacing="0" cellpadding="0">
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<tr>
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<td>Type: </td>
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<td><select name="type" class="formfld" onChange="typesel_change()">
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<option value="single" <?php if ((!$pconfig['range'] && $pconfig['subnet_bits'] == 32) || (!isset($pconfig['ipaddr']))) echo "selected"; ?>>
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Single address</option>
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<option value="network" <?php if (!$pconfig['range'] && $pconfig['subnet_bits'] != 32 && isset($pconfig['ipaddr'])) echo "selected"; ?>>
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Network</option>
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<!-- XXX: Billm, don't let anyone choose this until NAT configuration screens are ready for it <option value="range" <?php if ($pconfig['range']) echo "selected"; ?>>
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Range</option> -->
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</select></td>
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</tr>
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<tr>
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<td>Address: </td>
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<td><input name="subnet" type="text" class="formfld" id="subnet" size="20" value="<?=htmlspecialchars($pconfig['subnet']);?>">
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/
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<select name="subnet_bits" class="formfld" id="select">
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<?php for ($i = 32; $i >= 1; $i--): ?>
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<option value="<?=$i;?>" <?php if (($i == $pconfig['subnet_bits']) || (!isset($pconfig['ipaddr']) && $i == 32)) echo "selected"; ?>>
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<?=$i;?>
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</option>
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<?php endfor; ?>
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</select> <i id="typenote"></i>
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</td>
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</tr>
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<?php
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/*
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<tr>
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<td>Range: </td>
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<td><input name="range_from" type="text" class="formfld" id="range_from" size="20" value="<?=htmlspecialchars($pconfig['range']['from']);?>">
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-
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<input name="range_to" type="text" class="formfld" id="range_to" size="20" value="<?=htmlspecialchars($pconfig['range']['to']);?>">
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</td>
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</tr>
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*/
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?>
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</table>
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</td>
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</tr>
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<tr valign="top">
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<td width="22%" class="vncellreq">Virtual IP Password</td>
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<td class="vtable"><input type='password' name='password' value="<?=htmlspecialchars($pconfig['password']);?>">
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<br>Enter the VHID group password.
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</td>
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</tr>
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<tr valign="top">
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<td width="22%" class="vncellreq">VHID Group</td>
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<td class="vtable"><select id='vhid' name='vhid'>
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<?php for ($i = 1; $i <= 254; $i++): ?>
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<option value="<?=$i;?>" <?php if ($i == $pconfig['vhid']) echo "selected"; ?>>
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<?=$i;?>
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</option>
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<?php endfor; ?>
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</select>
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<br>Enter the VHID group that the machines will share
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</td>
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</tr>
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<tr valign="top">
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<td width="22%" class="vncellreq">Advertising Frequency</td>
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<td class="vtable"><select id='advskew' name='advskew'>
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<?php for ($i = 0; $i <= 254; $i++): ?>
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<option value="<?=$i;?>" <?php if ($i == $pconfig['advskew']) echo "selected"; ?>>
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<?=$i;?>
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</option>
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<?php endfor; ?>
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</select>
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<br>The frequency that this machine will advertise. 0 = master. Anything above 0 designates a backup.
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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">Description</td>
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<td width="78%" class="vtable">
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<input name="descr" type="text" class="formfld" id="descr" size="40" value="<?=htmlspecialchars($pconfig['descr']);?>">
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<br> <span class="vexpl">You may enter a description here for your reference (not parsed).</span></td>
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</tr>
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<tr>
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<td width="22%" valign="top"> </td>
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<td width="78%">
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<input name="Submit" type="submit" class="formbtn" value="Save"> <input type="button" class="formbtn" value="Cancel" onclick="history.back()">
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<?php if (isset($id) && $a_vip[$id]): ?>
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<input name="id" type="hidden" value="<?=$id;?>">
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<?php endif; ?>
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</td>
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</tr>
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<tr>
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<td colspan="4">
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<p>
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<span class="vexpl">
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<span class="red">
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<strong>Note:<br></strong>
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</span>
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ProxyARP type IP addresses *DO NOT* work with the FTP Helper and addon packages such as squid. Use a CARP type address in this case.
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</span>
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</p>
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</td>
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</tr>
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</table>
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</form>
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<script language="JavaScript">
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<!--
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enable_change(false);
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typesel_change();
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//-->
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</script>
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<?php include("fend.inc"); ?>
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</body>
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</html>
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