.
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_MODULE: nat
*/
##|+PRIV
##|*IDENT=page-firewall-nat-portforward-edit
##|*NAME=Firewall: NAT: Port Forward: Edit page
##|*DESCR=Allow access to the 'Firewall: NAT: Port Forward: Edit' page.
##|*MATCH=firewall_nat_edit.php*
##|-PRIV
require("guiconfig.inc");
require_once("itemid.inc");
require("filter.inc");
require("shaper.inc");
$specialsrcdst = explode(" ", "any pptp pppoe l2tp openvpn");
$ifdisp = get_configured_interface_with_descr();
foreach ($ifdisp as $kif => $kdescr) {
$specialsrcdst[] = "{$kif}";
$specialsrcdst[] = "{$kif}ip";
}
if (!is_array($config['nat']['rule'])) {
$config['nat']['rule'] = array();
}
$a_nat = &$config['nat']['rule'];
$id = $_GET['id'];
if (isset($_POST['id']))
$id = $_POST['id'];
if (isset($_GET['dup'])) {
$id = $_GET['dup'];
$after = $_GET['dup'];
}
if (isset($id) && $a_nat[$id]) {
$pconfig['disabled'] = isset($a_nat[$id]['disabled']);
$pconfig['nordr'] = isset($a_nat[$id]['nordr']);
address_to_pconfig($a_nat[$id]['source'], $pconfig['src'],
$pconfig['srcmask'], $pconfig['srcnot'],
$pconfig['srcbeginport'], $pconfig['srcendport']);
address_to_pconfig($a_nat[$id]['destination'], $pconfig['dst'],
$pconfig['dstmask'], $pconfig['dstnot'],
$pconfig['dstbeginport'], $pconfig['dstendport']);
$pconfig['proto'] = $a_nat[$id]['protocol'];
$pconfig['localip'] = $a_nat[$id]['target'];
$pconfig['localbeginport'] = $a_nat[$id]['local-port'];
$pconfig['descr'] = $a_nat[$id]['descr'];
$pconfig['interface'] = $a_nat[$id]['interface'];
$pconfig['associated-rule-id'] = $a_nat[$id]['associated-rule-id'];
$pconfig['nosync'] = isset($a_nat[$id]['nosync']);
$pconfig['natreflection'] = $a_nat[$id]['natreflection'];
if (!$pconfig['interface'])
$pconfig['interface'] = "wan";
} else {
$pconfig['interface'] = "wan";
$pconfig['src'] = "any";
$pconfig['srcbeginport'] = "any";
$pconfig['srcendport'] = "any";
}
if (isset($_GET['dup']))
unset($id);
/* run through $_POST items encoding HTML entties so that the user
* cannot think he is slick and perform a XSS attack on the unwilling
*/
foreach ($_POST as $key => $value) {
$temp = $value;
$newpost = htmlentities($temp);
if($newpost <> $temp)
$input_errors[] = "Invalid characters detected ($temp). Please remove invalid characters and save again.";
}
if ($_POST) {
if(strtoupper($_POST['proto']) == "TCP" || strtoupper($_POST['proto']) == "UDP" || strtoupper($_POST['proto']) == "TCP/UDP") {
if ($_POST['srcbeginport_cust'] && !$_POST['srcbeginport'])
$_POST['srcbeginport'] = $_POST['srcbeginport_cust'];
if ($_POST['srcendport_cust'] && !$_POST['srcendport'])
$_POST['srcendport'] = $_POST['srcendport_cust'];
if ($_POST['srcbeginport'] == "any") {
$_POST['srcbeginport'] = 0;
$_POST['srcendport'] = 0;
} else {
if (!$_POST['srcendport'])
$_POST['srcendport'] = $_POST['srcbeginport'];
}
if ($_POST['srcendport'] == "any")
$_POST['srcendport'] = $_POST['srcbeginport'];
if ($_POST['dstbeginport_cust'] && !$_POST['dstbeginport'])
$_POST['dstbeginport'] = $_POST['dstbeginport_cust'];
if ($_POST['dstendport_cust'] && !$_POST['dstendport'])
$_POST['dstendport'] = $_POST['dstendport_cust'];
if ($_POST['dstbeginport'] == "any") {
$_POST['dstbeginport'] = 0;
$_POST['dstendport'] = 0;
} else {
if (!$_POST['dstendport'])
$_POST['dstendport'] = $_POST['dstbeginport'];
}
if ($_POST['dstendport'] == "any")
$_POST['dstendport'] = $_POST['dstbeginport'];
if ($_POST['localbeginport_cust'] && !$_POST['localbeginport'])
$_POST['localbeginport'] = $_POST['localbeginport_cust'];
/* Make beginning port end port if not defined and endport is */
if (!$_POST['srcbeginport'] && $_POST['srcendport'])
$_POST['srcbeginport'] = $_POST['srcendport'];
if (!$_POST['dstbeginport'] && $_POST['dstendport'])
$_POST['dstbeginport'] = $_POST['dstendport'];
} else {
$_POST['srcbeginport'] = 0;
$_POST['srcendport'] = 0;
$_POST['dstbeginport'] = 0;
$_POST['dstendport'] = 0;
}
if (is_specialnet($_POST['srctype'])) {
$_POST['src'] = $_POST['srctype'];
$_POST['srcmask'] = 0;
} else if ($_POST['srctype'] == "single") {
$_POST['srcmask'] = 32;
}
if (is_specialnet($_POST['dsttype'])) {
$_POST['dst'] = $_POST['dsttype'];
$_POST['dstmask'] = 0;
} else if ($_POST['dsttype'] == "single") {
$_POST['dstmask'] = 32;
} else if (is_ipaddr($_POST['dsttype'])) {
$_POST['dst'] = $_POST['dsttype'];
$_POST['dstmask'] = 32;
$_POST['dsttype'] = "single";
}
unset($input_errors);
$pconfig = $_POST;
/* input validation */
if(strtoupper($_POST['proto']) == "TCP" or strtoupper($_POST['proto']) == "UDP" or strtoupper($_POST['proto']) == "TCP/UDP") {
$reqdfields = explode(" ", "interface proto dstbeginport dstendport localip");
$reqdfieldsn = explode(",", "Interface,Protocol,Destination port from,Destination port to,NAT IP");
} else {
$reqdfields = explode(" ", "interface proto localip");
$reqdfieldsn = explode(",", "Interface,Protocol,NAT IP");
}
if ($_POST['srctype'] == "single" || $_POST['srctype'] == "network") {
$reqdfields[] = "src";
$reqdfieldsn[] = "Source address";
}
if ($_POST['dsttype'] == "single" || $_POST['dsttype'] == "network") {
$reqdfields[] = "dst";
$reqdfieldsn[] = "Destination address";
}
do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors);
if (!$_POST['srcbeginport']) {
$_POST['srcbeginport'] = 0;
$_POST['srcendport'] = 0;
}
if (!$_POST['dstbeginport']) {
$_POST['dstbeginport'] = 0;
$_POST['dstendport'] = 0;
}
if (($_POST['localip'] && !is_ipaddroralias($_POST['localip']))) {
$input_errors[] = "\"{$_POST['localip']}\" is not valid NAT IP address or host alias.";
}
if ($_POST['srcbeginport'] && !is_portoralias($_POST['srcbeginport']))
$input_errors[] = "{$_POST['srcbeginport']} is not a valid start source port. It must be a port alias or integer between 1 and 65535.";
if ($_POST['srcendport'] && !is_portoralias($_POST['srcendport']))
$input_errors[] = "{$_POST['srcendport']} is not a valid end source port. It must be a port alias or integer between 1 and 65535.";
if ($_POST['dstbeginport'] && !is_portoralias($_POST['dstbeginport']))
$input_errors[] = "{$_POST['dstbeginport']} is not a valid start destination port. It must be a port alias or integer between 1 and 65535.";
if ($_POST['dstendport'] && !is_portoralias($_POST['dstendport']))
$input_errors[] = "{$_POST['dstendport']} is not a valid end destination port. It must be a port alias or integer between 1 and 65535.";
if ($_POST['localbeginport'] && !is_portoralias($_POST['localbeginport'])) {
$input_errors[] = "{$_POST['localbeginport']} is not a valid local port. It must be a port alias or integer between 1 and 65535.";
}
/* if user enters an alias and selects "network" then disallow. */
if( ($_POST['srctype'] == "network" && is_alias($_POST['src']) )
|| ($_POST['dsttype'] == "network" && is_alias($_POST['dst']) ) ) {
$input_errors[] = "You must specify single host or alias for alias entries.";
}
if (!is_specialnet($_POST['srctype'])) {
if (($_POST['src'] && !is_ipaddroralias($_POST['src']))) {
$input_errors[] = "{$_POST['src']} is not a valid source IP address or alias.";
}
if (($_POST['srcmask'] && !is_numericint($_POST['srcmask']))) {
$input_errors[] = "A valid source bit count must be specified.";
}
}
if (!is_specialnet($_POST['dsttype'])) {
if (($_POST['dst'] && !is_ipaddroralias($_POST['dst']))) {
$input_errors[] = "{$_POST['dst']} is not a valid destination IP address or alias.";
}
if (($_POST['dstmask'] && !is_numericint($_POST['dstmask']))) {
$input_errors[] = "A valid destination bit count must be specified.";
}
}
if ($_POST['srcbeginport'] > $_POST['srcendport']) {
/* swap */
$tmp = $_POST['srcendport'];
$_POST['srcendport'] = $_POST['srcbeginport'];
$_POST['srcbeginport'] = $tmp;
}
if ($_POST['dstbeginport'] > $_POST['dstendport']) {
/* swap */
$tmp = $_POST['dstendport'];
$_POST['dstendport'] = $_POST['dstbeginport'];
$_POST['dstbeginport'] = $tmp;
}
if (!$input_errors) {
if (($_POST['dstendport'] - $_POST['dstbeginport'] + $_POST['localbeginport']) > 65535)
$input_errors[] = "The target port range must be an integer between 1 and 65535.";
}
/* check for overlaps */
foreach ($a_nat as $natent) {
if (isset($id) && ($a_nat[$id]) && ($a_nat[$id] === $natent))
continue;
if ($natent['interface'] != $_POST['interface'])
continue;
if ($natent['destination']['address'] != $_POST['dst'])
continue;
if (($natent['proto'] != $_POST['proto']) && ($natent['proto'] != "tcp/udp") && ($_POST['proto'] != "tcp/udp"))
continue;
list($begp,$endp) = explode("-", $natent['destination']['port']);
if (!$endp)
$endp = $begp;
if (!( (($_POST['beginport'] < $begp) && ($_POST['endport'] < $begp))
|| (($_POST['beginport'] > $endp) && ($_POST['endport'] > $endp)))) {
$input_errors[] = "The destination port range overlaps with an existing entry.";
break;
}
}
if (!$input_errors) {
$natent = array();
$natent['disabled'] = isset($_POST['disabled']) ? true:false;
$natent['nordr'] = isset($_POST['nordr']) ? true:false;
pconfig_to_address($natent['source'], $_POST['src'],
$_POST['srcmask'], $_POST['srcnot'],
$_POST['srcbeginport'], $_POST['srcendport']);
pconfig_to_address($natent['destination'], $_POST['dst'],
$_POST['dstmask'], $_POST['dstnot'],
$_POST['dstbeginport'], $_POST['dstendport']);
$natent['protocol'] = $_POST['proto'];
$natent['target'] = $_POST['localip'];
$natent['local-port'] = $_POST['localbeginport'];
$natent['interface'] = $_POST['interface'];
$natent['descr'] = $_POST['descr'];
$natent['associated-rule-id'] = $_POST['associated-rule-id'];
if($_POST['filter-rule-association'] == "pass")
$natent['associated-rule-id'] = "pass";
if($_POST['nosync'] == "yes")
$natent['nosync'] = true;
else
unset($natent['nosync']);
if ($_POST['natreflection'] == "enable" || $_POST['natreflection'] == "disable")
$natent['natreflection'] = $_POST['natreflection'];
else
unset($natent['natreflection']);
// If we used to have an associated filter rule, but no-longer should have one
if (!empty($a_nat[$id]) && ( empty($natent['associated-rule-id']) || $natent['associated-rule-id'] != $a_nat[$id]['associated-rule-id'] ) ) {
// Delete the previous rule
delete_id($a_nat[$id]['associated-rule-id'], $config['filter']['rule']);
mark_subsystem_dirty('filter');
}
$need_filter_rule = false;
// Updating a rule with a filter rule associated
if (!empty($natent['associated-rule-id']))
$need_filter_rule = true;
// Create a rule or if we want to create a new one
if( $natent['associated-rule-id']=='new' ) {
$need_filter_rule = true;
unset( $natent['associated-rule-id'] );
$_POST['filter-rule-association']='add-associated';
}
// If creating a new rule, where we want to add the filter rule, associated or not
else if( isset($_POST['filter-rule-association']) &&
($_POST['filter-rule-association']=='add-associated' ||
$_POST['filter-rule-association']=='add-unassociated') )
$need_filter_rule = true;
// Determine NAT entry ID now, we need it for the firewall rule
if (isset($id) && $a_nat[$id])
$a_nat[$id] = $natent;
else {
if (is_numeric($after))
$id = $after + 1;
else
$id = count($a_nat);
}
if ($need_filter_rule == true) {
/* auto-generate a matching firewall rule */
$filterent = array();
unset($filterentid);
// If a rule already exists, load it
if (!empty($natent['associated-rule-id'])) {
$filterentid = get_id($natent['associated-rule-id'], $config['filter']['rule']);
if ($filterentid == false) {
pconfig_to_address($filterent['source'], $_POST['src'],
$_POST['srcmask'], $_POST['srcnot'],
$_POST['srcbeginport'], $_POST['srcendport']);
$filterent['associated-rule-id'] = $natent['associated-rule-id'];
} else
$filterent =& $config['filter']['rule'][$filterentid];
} else
pconfig_to_address($filterent['source'], $_POST['src'],
$_POST['srcmask'], $_POST['srcnot'],
$_POST['srcbeginport'], $_POST['srcendport']);
// Update interface, protocol and destination
$filterent['interface'] = $_POST['interface'];
$filterent['protocol'] = $_POST['proto'];
$filterent['destination']['address'] = $_POST['localip'];
$dstpfrom = $_POST['localbeginport'];
$dstpto = $dstpfrom + $_POST['dstendport'] - $_POST['dstbeginport'];
if ($dstpfrom == $dstpto)
$filterent['destination']['port'] = $dstpfrom;
else
$filterent['destination']['port'] = $dstpfrom . "-" . $dstpto;
/*
* Our firewall filter description may be no longer than
* 63 characters, so don't let it be.
*/
$filterent['descr'] = substr("NAT " . $_POST['descr'], 0, 62);
// If this is a new rule, create an ID and add the rule
if( $_POST['filter-rule-association']=='add-associated' ) {
$filterent['associated-rule-id'] = $natent['associated-rule-id'] = get_unique_id();
$config['filter']['rule'][] = $filterent;
}
mark_subsystem_dirty('filter');
}
// Update the NAT entry now
if (isset($id) && $a_nat[$id])
$a_nat[$id] = $natent;
else {
if (is_numeric($after))
array_splice($a_nat, $after+1, 0, array($natent));
else
$a_nat[] = $natent;
}
mark_subsystem_dirty('natconf');
write_config();
header("Location: firewall_nat.php");
exit;
}
}
$pgtitle = array("Firewall","NAT","Port Forward: Edit");
include("head.inc");
?>
"")
foreach($config['aliases']['alias'] as $alias_name) {
switch ($alias_name['type']) {
case "port":
if($isfirst == 1) $portaliases .= ",";
$portaliases .= "'" . $alias_name['name'] . "'";
$isfirst = 1;
break;
case "host":
case "network":
case "openvpn":
case "urltable":
if($addrisfirst == 1) $aliasesaddr .= ",";
$aliasesaddr .= "'" . $alias_name['name'] . "'";
$addrisfirst = 1;
break;
default:
break;
}
}
?>