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524 lines
22 KiB
PHP
Executable File
524 lines
22 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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/*
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pfSense_BUILDER_BINARIES: /sbin/ifconfig
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pfSense_MODULE: interfaces
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*/
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##|+PRIV
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##|*IDENT=page-firewall-virtualipaddress-edit
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##|*NAME=Firewall: Virtual IP Address: Edit page
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##|*DESCR=Allow access to the 'Firewall: Virtual IP Address: Edit' page.
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##|*MATCH=firewall_virtual_ip_edit.php*
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##|-PRIV
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require("guiconfig.inc");
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require("filter.inc");
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require("shaper.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 = explode(".", $ip);
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return $ip_split[0] . "." . $ip_split[1];
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}
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function find_last_used_vhid() {
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global $config, $g;
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$vhid = 0;
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foreach($config['virtualip']['vip'] as $vip) {
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if($vip['vhid'] > $vhid)
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$vhid = $vip['vhid'];
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}
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return $vhid;
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}
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if (isset($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['advbase'] = $a_vip[$id]['advbase'];
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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['noexpand'] = $a_vip[$id]['noexpand'];
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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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} else {
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$lastvhid = find_last_used_vhid();
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$lastvhid++;
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$pconfig['vhid'] = $lastvhid;
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}
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if ($_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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$reqdfieldsn = array(gettext("Type"));
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do_input_validation($_POST, $reqdfields, $reqdfieldsn, $input_errors);
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if ($_POST['subnet'])
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$_POST['subnet'] = trim($_POST['subnet']);
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if ($_POST['subnet']) {
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if (!is_ipaddr($_POST['subnet']))
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$input_errors[] = gettext("A valid IP address must be specified.");
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else if (is_ipaddr_configured($_POST['subnet'], "vip_" . $id))
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$input_errors[] = gettext("This IP address is being used by another interface or VIP.");
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}
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$natiflist = get_configured_interface_with_descr();
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foreach ($natiflist as $natif => $natdescr) {
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if ($_POST['interface'] == $natif && (empty($config['interfaces'][$natif]['ipaddr']) && empty($config['interfaces'][$natif]['ipaddrv6'])))
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$input_errors[] = gettext("The interface chosen for the VIP has no IPv4 or IPv6 address configured so it cannot be used as a parent for the VIP.");
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}
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if(is_ipaddrv4($_POST['subnet'])) {
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if(($_POST['subnet_bits'] == "31" or $_POST['subnet_bits'] == "32") and $_POST['mode'] == "carp")
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$input_errors[] = gettext("The /31 and /32 subnet mask are invalid for CARP IPs.");
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}
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if(is_ipaddrv6($_POST['subnet'])) {
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if(($_POST['subnet_bits'] == "127" or $_POST['subnet_bits'] == "128") and $_POST['mode'] == "carp")
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$input_errors[] = gettext("The /127 and /128 subnet mask are invalid for CARP IPs.");
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}
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/* ipalias and carp should not use network or broadcast address */
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if ($_POST['mode'] == "ipalias" || $_POST['mode'] == "carp") {
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if (is_ipaddrv4($_POST['subnet']) && $_POST['subnet_bits'] != "32") {
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$network_addr = gen_subnet($_POST['subnet'], $_POST['subnet_bits']);
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$broadcast_addr = gen_subnet_max($_POST['subnet'], $_POST['subnet_bits']);
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} else if (is_ipaddrv6($_POST['subnet']) && $_POST['subnet_bits'] != "128" ) {
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$network_addr = gen_subnetv6($_POST['subnet'], $_POST['subnet_bits']);
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$broadcast_addr = gen_subnetv6_max($_POST['subnet'], $_POST['subnet_bits']);
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}
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if (isset($network_addr) && $_POST['subnet'] == $network_addr)
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$input_errors[] = gettext("You cannot use the network address for this VIP");
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else if (isset($broadcast_addr) && $_POST['subnet'] == $broadcast_addr)
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$input_errors[] = gettext("You cannot use the broadcast address for this VIP");
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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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switch ($_POST['mode']) {
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case "carp":
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/* verify against reusage of vhids */
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$idtracker = 0;
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foreach($config['virtualip']['vip'] as $vip) {
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if($vip['vhid'] == $_POST['vhid'] && $vip['interface'] == $_POST['interface'] && $idtracker <> $id)
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$input_errors[] = sprintf(gettext("VHID %s is already in use on interface %s. Pick a unique number on this interface."),$_POST['vhid'], convert_friendly_interface_to_friendly_descr($_POST['interface']));
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$idtracker++;
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}
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if (empty($_POST['password']))
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$input_errors[] = gettext("You must specify a CARP password that is shared between the two VHID members.");
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if (is_ipaddrv4($_POST['subnet'])) {
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$parent_ip = get_interface_ip($_POST['interface']);
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$parent_sn = get_interface_subnet($_POST['interface']);
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$subnet = gen_subnet($parent_ip, $parent_sn);
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} else if (is_ipaddrv6($_POST['subnet'])) {
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$parent_ip = get_interface_ipv6($_POST['interface']);
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$parent_sn = get_interface_subnetv6($_POST['interface']);
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$subnet = gen_subnetv6($parent_ip, $parent_sn);
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}
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if (isset($parent_ip) && !ip_in_subnet($_POST['subnet'], "{$subnet}/{$parent_sn}") && !ip_in_interface_alias_subnet($_POST['interface'], $_POST['subnet'])) {
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$cannot_find = $_POST['subnet'] . "/" . $_POST['subnet_bits'] ;
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$input_errors[] = sprintf(gettext("Sorry, we could not locate an interface with a matching subnet for %s. Please add an IP alias in this subnet on this interface."),$cannot_find);
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}
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if ($_POST['interface'] == "lo0")
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$input_errors[] = gettext("For this type of vip localhost is not allowed.");
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if (strstr($_POST['interface'], "_vip"))
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$input_errors[] = gettext("For this type of vip a carp parent is not allowed.");
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break;
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case "ipalias":
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if (strstr($_POST['interface'], "_vip")) {
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if (is_ipaddrv4($_POST['subnet'])) {
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$parent_ip = get_interface_ip($_POST['interface']);
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$parent_sn = get_interface_subnet($_POST['interface']);
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$subnet = gen_subnet($parent_ip, $parent_sn);
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} else if (is_ipaddrv6($_POST['subnet'])) {
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$parent_ip = get_interface_ipv6($_POST['interface']);
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$parent_sn = get_interface_subnetv6($_POST['interface']);
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$subnet = gen_subnetv6($parent_ip, $parent_sn);
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}
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if (isset($parent_ip) && !ip_in_subnet($_POST['subnet'], "{$subnet}/{$parent_sn}") && !ip_in_interface_alias_subnet($_POST['interface'], $_POST['subnet'])) {
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$cannot_find = $_POST['subnet'] . "/" . $_POST['subnet_bits'] ;
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$input_errors[] = sprintf(gettext("Sorry, we could not locate an interface with a matching subnet for %s. Please add an IP alias in this subnet on this interface."),$cannot_find);
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}
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}
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break;
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default:
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if ($_POST['interface'] == "lo0")
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$input_errors[] = gettext("For this type of vip localhost is not allowed.");
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if (strstr($_POST['interface'], "_vip"))
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$input_errors[] = gettext("For this type of VIP, a CARP parent is not allowed.");
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break;
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}
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if (!$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'] = $_POST['range_to'];
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}
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$vipent['noexpand'] = isset($_POST['noexpand']);
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}
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/* CARP specific fields */
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if ($_POST['mode'] === "carp") {
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$vipent['vhid'] = $_POST['vhid'];
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$vipent['advskew'] = $_POST['advskew'];
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$vipent['advbase'] = $_POST['advbase'];
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$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))
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$id = count($a_vip);
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if (file_exists("{$g['tmp_path']}/.firewall_virtual_ip.apply"))
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$toapplylist = unserialize(file_get_contents("{$g['tmp_path']}/.firewall_virtual_ip.apply"));
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else
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$toapplylist = array();
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$toapplylist[$id] = $a_vip[$id];
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if (!empty($a_vip[$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]['destination']['address'] == $a_vip[$id]['subnet'])
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$config['nat']['rule'][$i]['destination']['address'] = $vipent['subnet'];
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}
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}
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$a_vip[$id] = $vipent;
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if (write_config()) {
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mark_subsystem_dirty('vip');
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file_put_contents("{$g['tmp_path']}/.firewall_virtual_ip.apply", serialize($toapplylist));
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}
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header("Location: firewall_virtual_ip.php");
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exit;
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}
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}
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$pgtitle = array(gettext("Firewall"),gettext("Virtual IP Address"),gettext("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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<script type="text/javascript" src="/javascript/jquery.ipv4v6ify.js"></script>
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<?php include("fbegin.inc"); ?>
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<script type="text/javascript">
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//<![CDATA[
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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 set_note(noteMessage){
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var note = document.getElementById("typenote");
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if (note.firstChild != null)
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note.removeChild(note.firstChild);
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if (noteMessage)
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note.appendChild(noteMessage);
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}
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function enable_change() {
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var carpnote = document.createTextNode("<?=gettext("This must be the network's subnet mask. It does not specify a CIDR range.");?>");
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var proxyarpnote = document.createTextNode("<?=gettext("This is a CIDR block of proxy ARP addresses.");?>");
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var ipaliasnote = document.createTextNode("<?=gettext("This must be the network's subnet mask. It does not specify a CIDR range.");?>");
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$mode = get_radio_value(document.iform.mode);
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document.iform.password.disabled = $mode != "carp";
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document.iform.vhid.disabled = $mode != "carp";
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document.iform.advskew.disabled = $mode != "carp";
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document.iform.advbase.disabled = $mode != "carp";
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document.iform.type.disabled = $mode in {"carp":1,"ipalias":1};
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if ($mode in {"carp":1,"ipalias":1})
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document.iform.type.selectedIndex = 0;// single-adress
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switch($mode)
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{
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case "carp" : set_note(carpnote); break;
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case "ipalias" : set_note(ipaliasnote); break;
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case "proxyarp": set_note(proxyarpnote); break;
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default: set_note(undefined);
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}
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typesel_change();
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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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document.iform.subnet_bits.disabled = (get_radio_value(document.iform.mode) == "proxyarp") || (get_radio_value(document.iform.mode) == "other");
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document.iform.noexpand.disabled = 1;
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jQuery('#noexpandrow').css('display','none');
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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.noexpand.disabled = 0;
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jQuery('#noexpandrow').css('display','');
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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.noexpand.disabled = 1;
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jQuery('#noexpandrow').css('display','none');
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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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case 3: // IP alias
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document.iform.subnet.disabled = 1;
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document.iform.subnet_bits.disabled = 0;
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document.iform.noexpand.disabled = 1;
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jQuery('#noexpandrow').css('display','none');
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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($input_errors); ?>
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<form action="firewall_virtual_ip_edit.php" method="post" name="iform" id="iform">
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<table width="100%" border="0" cellpadding="6" cellspacing="0" summary="virtual IP edit">
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<tr>
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<td colspan="2" valign="top" class="listtopic"><?=gettext("Edit Virtual IP");?></td>
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</tr>
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<tr>
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<td width="22%" valign="top" class="vncellreq"><?=gettext("Type");?></td>
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<td width="78%" class="vtable">
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<input name="mode" type="radio" onclick="enable_change()" value="ipalias"
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<?php if ($pconfig['mode'] == "ipalias") echo "checked=\"checked\"";?> /> <?=gettext("IP Alias");?>
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<input name="mode" type="radio" onclick="enable_change()" value="carp"
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<?php if ($pconfig['mode'] == "carp") echo "checked=\"checked\"";?> /> <?=gettext("CARP"); ?>
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<input name="mode" type="radio" onclick="enable_change()" value="proxyarp"
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<?php if ($pconfig['mode'] == "proxyarp") echo "checked=\"checked\"";?> /> <?=gettext("Proxy ARP"); ?>
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<input name="mode" type="radio" onclick="enable_change()" value="other"
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<?php if ($pconfig['mode'] == "other") echo "checked=\"checked\"";?> /> <?=gettext("Other");?>
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</td>
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</tr>
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<tr>
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<td width="22%" valign="top" class="vncellreq"><?=gettext("Interface");?></td>
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<td width="78%" class="vtable">
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<select name="interface" class="formselect">
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<?php
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$interfaces = get_configured_interface_with_descr(false, true);
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$carplist = get_configured_carp_interface_list();
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foreach ($carplist as $cif => $carpip)
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$interfaces[$cif] = $carpip." (".get_vip_descr($carpip).")";
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$interfaces['lo0'] = "Localhost";
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foreach ($interfaces as $iface => $ifacename): ?>
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<option value="<?=$iface;?>" <?php if ($iface == $pconfig['interface']) echo "selected=\"selected\""; ?>>
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<?=htmlspecialchars($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"><?=gettext("IP Address(es)");?></td>
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<td class="vtable">
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<table border="0" cellspacing="0" cellpadding="0" summary="ip addresses">
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<tr>
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<td><?=gettext("Type:");?> </td>
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<td><select name="type" class="formselect" onchange="typesel_change()">
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<option value="single" <?php if ((!$pconfig['range'] && $pconfig['subnet_bits'] == 32) || (!isset($pconfig['subnet']))) echo "selected=\"selected\""; ?>>
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<?=gettext("Single address");?></option>
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<option value="network" <?php if (!$pconfig['range'] && $pconfig['subnet_bits'] != 32 && isset($pconfig['subnet'])) echo "selected=\"selected\""; ?>>
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<?=gettext("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 ($pconfig['range']) echo "selected=\"selected\""; ?>>
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Range</option> -->
|
|
</select></td>
|
|
</tr>
|
|
<tr>
|
|
<td><?=gettext("Address:");?> </td>
|
|
<td><input name="subnet" type="text" class="formfld unknown ipv4v6" id="subnet" size="28" value="<?=htmlspecialchars($pconfig['subnet']);?>" />
|
|
/<select name="subnet_bits" class="formselect ipv4v6" id="select">
|
|
<?php for ($i = 128; $i >= 1; $i--): ?>
|
|
<option value="<?=$i;?>" <?php if ($i == $pconfig['subnet_bits']) echo "selected=\"selected\""; ?>>
|
|
<?=$i;?>
|
|
</option>
|
|
<?php endfor; ?>
|
|
</select> <i id="typenote"></i>
|
|
</td>
|
|
</tr>
|
|
<tr id="noexpandrow">
|
|
<td><?=gettext("Expansion:");?> </td>
|
|
<td><input name="noexpand" type="checkbox" class="formfld unknown" id="noexpand" <?php echo (isset($pconfig['noexpand'])) ? "checked=\"checked\"" : "" ; ?> />
|
|
Disable expansion of this entry into IPs on NAT lists (e.g. 192.168.1.0/24 expands to 256 entries.)
|
|
</td>
|
|
</tr>
|
|
<?php
|
|
/*
|
|
<tr>
|
|
<td>Range: </td>
|
|
<td><input name="range_from" type="text" class="formfld unknown" id="range_from" size="28" value="<?=htmlspecialchars($pconfig['range']['from']);?>" />
|
|
-
|
|
<input name="range_to" type="text" class="formfld unknown" id="range_to" size="28" value="<?=htmlspecialchars($pconfig['range']['to']);?>" />
|
|
</td>
|
|
</tr>
|
|
*/
|
|
?>
|
|
</table>
|
|
</td>
|
|
</tr>
|
|
<tr valign="top">
|
|
<td width="22%" class="vncellreq"><?=gettext("Virtual IP Password");?></td>
|
|
<td class="vtable"><input type='password' name='password' value="<?=htmlspecialchars($pconfig['password']);?>" />
|
|
<br/><?=gettext("Enter the VHID group password.");?>
|
|
</td>
|
|
</tr>
|
|
<tr valign="top">
|
|
<td width="22%" class="vncellreq"><?=gettext("VHID Group");?></td>
|
|
<td class="vtable"><select id='vhid' name='vhid'>
|
|
<?php for ($i = 1; $i <= 255; $i++): ?>
|
|
<option value="<?=$i;?>" <?php if ($i == $pconfig['vhid']) echo "selected=\"selected\""; ?>>
|
|
<?=$i;?>
|
|
</option>
|
|
<?php endfor; ?>
|
|
</select>
|
|
<br/><?=gettext("Enter the VHID group that the machines will share");?>
|
|
</td>
|
|
</tr>
|
|
<tr valign="top">
|
|
<td width="22%" class="vncellreq"><?=gettext("Advertising Frequency");?></td>
|
|
<td class="vtable">
|
|
Base: <select id='advbase' name='advbase'>
|
|
<?php for ($i = 1; $i <= 254; $i++): ?>
|
|
<option value="<?=$i;?>" <?php if ($i == $pconfig['advbase']) echo "selected=\"selected\""; ?>>
|
|
<?=$i;?>
|
|
</option>
|
|
<?php endfor; ?>
|
|
</select>
|
|
Skew: <select id='advskew' name='advskew'>
|
|
<?php for ($i = 0; $i <= 254; $i++): ?>
|
|
<option value="<?=$i;?>" <?php if ($i == $pconfig['advskew']) echo "selected=\"selected\""; ?>>
|
|
<?=$i;?>
|
|
</option>
|
|
<?php endfor; ?>
|
|
</select>
|
|
<br/><br/>
|
|
<?=gettext("The frequency that this machine will advertise. 0 means usually master. Otherwise the lowest combination of both values in the cluster determines the master.");?>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td width="22%" valign="top" class="vncell"><?=gettext("Description");?></td>
|
|
<td width="78%" class="vtable">
|
|
<input name="descr" type="text" class="formfld unknown" id="descr" size="40" value="<?=htmlspecialchars($pconfig['descr']);?>" />
|
|
<br/> <span class="vexpl"><?=gettext("You may enter a description here for your reference (not parsed).");?></span></td>
|
|
</tr>
|
|
<tr>
|
|
<td width="22%" valign="top"> </td>
|
|
<td width="78%">
|
|
<input name="Submit" type="submit" class="formbtn" value="<?=gettext("Save"); ?>" /> <input type="button" class="formbtn" value="<?=gettext("Cancel"); ?>" onclick="history.back()" />
|
|
<?php if (isset($id) && $a_vip[$id]): ?>
|
|
<input name="id" type="hidden" value="<?=htmlspecialchars($id);?>" />
|
|
<?php endif; ?>
|
|
</td>
|
|
</tr>
|
|
<tr>
|
|
<td colspan="4">
|
|
<span class="vexpl">
|
|
<span class="red">
|
|
<b><?=gettext("Note:");?><br/></b>
|
|
</span>
|
|
<?=gettext("Proxy ARP and Other type Virtual IPs cannot be bound to by anything running on the firewall, such as IPsec, OpenVPN, etc. Use a CARP or IP Alias type address for these cases.");?>
|
|
<br/><br/> <?=gettext("For more information on CARP and the above values, visit the OpenBSD ");?><a href='http://www.openbsd.org/faq/pf/carp.html'> <?=gettext("CARP FAQ"); ?></a>.
|
|
</span>
|
|
</td>
|
|
</tr>
|
|
|
|
</table>
|
|
</form>
|
|
<script type="text/javascript">
|
|
//<![CDATA[
|
|
enable_change();
|
|
//]]>
|
|
</script>
|
|
<?php include("fend.inc"); ?>
|
|
</body>
|
|
</html>
|