. All rights reserved. Includes code from m0n0wall which is: Copyright (C) 2003-2005 Manuel Kasper . All rights reserved. Includes code from pfSense which is: Copyright (C) 2004-2005 Scott Ullrich . All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* pfSense_BUILDER_BINARIES: /sbin/ifconfig pfSense_MODULE: interfaces */ ##|+PRIV ##|*IDENT=page-firewall-virtualipaddress-edit ##|*NAME=Firewall: Virtual IP Address: Edit page ##|*DESCR=Allow access to the 'Firewall: Virtual IP Address: Edit' page. ##|*MATCH=firewall_virtual_ip_edit.php* ##|-PRIV require("guiconfig.inc"); require("filter.inc"); require("shaper.inc"); if (!is_array($config['virtualip']['vip'])) { $config['virtualip']['vip'] = array(); } $a_vip = &$config['virtualip']['vip']; if (isset($_POST['id'])) $id = $_POST['id']; else $id = $_GET['id']; function return_first_two_octets($ip) { $ip_split = split("\.", $ip); return $ip_split[0] . "." . $ip_split[1]; } function find_last_used_vhid() { global $config, $g; $vhid = 0; foreach($config['virtualip']['vip'] as $vip) { if($vip['vhid'] > $vhid) $vhid = $vip['vhid']; } return $vhid; } if (isset($id) && $a_vip[$id]) { $pconfig['mode'] = $a_vip[$id]['mode']; $pconfig['vhid'] = $a_vip[$id]['vhid']; $pconfig['advskew'] = $a_vip[$id]['advskew']; $pconfig['password'] = $a_vip[$id]['password']; $pconfig['range'] = $a_vip[$id]['range']; $pconfig['subnet'] = $a_vip[$id]['subnet']; $pconfig['subnet_bits'] = $a_vip[$id]['subnet_bits']; $pconfig['descr'] = $a_vip[$id]['descr']; $pconfig['type'] = $a_vip[$id]['type']; $pconfig['interface'] = $a_vip[$id]['interface']; } else { $lastvhid = find_last_used_vhid(); $lastvhid++; $pconfig['vhid'] = $lastvhid; } if ($_POST) { unset($input_errors); $pconfig = $_POST; /* input validation */ $reqdfields = explode(" ", "mode"); $reqdfieldsn = explode(",", "Type"); do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors); if (($_POST['subnet'] && !is_ipaddr($_POST['subnet']))) $input_errors[] = "A valid IP address must be specified."; $natiflist = get_configured_interface_with_descr(); foreach ($natiflist as $natif => $natdescr) if ($_POST['subnet'] == get_interface_ip($natif)) $input_errors[] = "The {$natdescr} IP address may not be used in a virtual entry."; if($_POST['subnet_bits'] == "32" and $_POST['type'] == "carp") $input_errors[] = "The /32 subnet mask is invalid for CARP IPs."; /* check for overlaps with other virtual IP */ foreach ($a_vip as $vipent) { if (isset($id) && ($a_vip[$id]) && ($a_vip[$id] === $vipent)) continue; if (isset($_POST['subnet']) && $_POST['subnet'] == $vipent['subnet']) { $input_errors[] = "There is already a virtual IP entry for the specified IP address."; break; } } /* make sure new ip is within the subnet of a valid ip * on one of our interfaces (wan, lan optX) */ if ($_POST['mode'] == "carp" or $_POST['mode'] == "carpdev-dhcp") { /* verify against reusage of vhids */ $idtracker = 0; foreach($config['virtualip']['vip'] as $vip) { if($vip['vhid'] == $_POST['vhid'] and $idtracker <> $id) $input_errors[] = "VHID {$_POST['vhid']} is already in use. Pick a unique number."; $idtracker++; } if($_POST['password'] == "") $input_errors[] = "You must specify a CARP password that is shared between the two VHID members."; $parent_ip = get_interface_ip($_POST['interface']); $parent_sn = get_interface_subnet($_POST['interface']); if (!ip_in_subnet($_POST['subnet'], gen_subnet($parent_ip, $parent_sn) . "/" . $parent_sn)) { $cannot_find = $_POST['subnet'] . "/" . $_POST['subnet_bits'] ; $input_errors[] = "Sorry, we could not locate an interface with a matching subnet for {$cannot_find}. Please add an IP alias in this subnet on this interface."; } else if ($parent_sn != $_POST['subnet_bits']) $input_errors[] = "Subnet bits needs to be the same as the parent interface."; if ($a_vip[$id]['vhid'] != $_POST['vhid']) interface_vip_bring_down($a_vip[$id]); } if (isset($id) && ($a_vip[$id])) { if ($a_vip[$id]['mode'] != $_POST['mode']) interface_bring_down($a_vip[$id]); } if (!$input_errors) { $vipent = array(); $vipent['mode'] = $_POST['mode']; $vipent['interface'] = $_POST['interface']; /* ProxyARP specific fields */ if ($_POST['mode'] === "proxyarp") { if ($_POST['type'] == "range") { $vipent['range']['from'] = $_POST['range_from']; $vipent['range']['to'] = $_POST['range_to']; } } /* CARP specific fields */ if ($_POST['mode'] === "carp" or $_POST['mode'] == "carpdev-dhcp") { $vipent['vhid'] = $_POST['vhid']; $vipent['advskew'] = $_POST['advskew']; $vipent['password'] = $_POST['password']; } /* Common fields */ $vipent['descr'] = $_POST['descr']; if (isset($_POST['type'])) $vipent['type'] = $_POST['type']; else $vipent['type'] = "single"; if ($vipent['type'] == "single" || $vipent['type'] == "network") { if (!isset($_POST['subnet_bits'])) { $vipent['subnet_bits'] = "32"; } else { $vipent['subnet_bits'] = $_POST['subnet_bits']; } $vipent['subnet'] = $_POST['subnet']; } if ($_POST['mode'] == "carpdev-dhcp") { unset($vipent['subnet']); unset($vipent['subnet_bits']); unset($vipent['alias-subnet']); } if (isset($id) && $a_vip[$id]) { if ($_POST['mode'] == "ipalias") interface_vip_bring_down($a_vip[$id]); /* modify all virtual IP rules with this address */ for ($i = 0; isset($config['nat']['rule'][$i]); $i++) { if ($config['nat']['rule'][$i]['destination']['address'] == $a_vip[$id]['subnet']) $config['nat']['rule'][$i]['destination']['address'] = $vipent['subnet']; } $a_vip[$id] = $vipent; } else $a_vip[] = $vipent; mark_subsystem_dirty('vip'); write_config(); if (!isset($id)) $id = count($a_vip) - 1; header("Location: firewall_virtual_ip.php?changes=mods&id={$id}"); exit; } } $pgtitle = array("Firewall","Virtual IP Address","Edit"); include("head.inc"); ?>
Edit Virtual IP
Type > Proxy ARP > CARP > Other > IP Alias > CarpDEV-DHCP */ ?>
Interface
IP Address(es) */ ?>
Type:  
Address:   /
Range:   -
Virtual IP Password
Enter the VHID group password.
VHID Group
Enter the VHID group that the machines will share
Advertising Frequency
The frequency that this machine will advertise. 0 = master. Anything above 0 designates a backup.
Description
You may enter a description here for your reference (not parsed).
 

Note:
   ProxyARP type IP addresses *DO NOT* work with add on packages such as Squid. Use a CARP or IP Alias type address for these cases.

   For more information on CARP and the above values, visit the OpenBSD CARP FAQ.