From d973a602abeab78803fce467198c571ba25ec0cb Mon Sep 17 00:00:00 2001
From: Daniel Becker <razzfazz@gmail.com>
Date: Tue, 6 May 2014 17:27:36 -0700
Subject: [PATCH] make listening on interface rather than IP optional for
 miniupnp

---
 usr/local/pkg/miniupnpd.inc | 6 +++++-
 usr/local/pkg/miniupnpd.xml | 7 ++++++-
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/usr/local/pkg/miniupnpd.inc b/usr/local/pkg/miniupnpd.inc
index 7f37d72ddf..c0760d6294 100644
--- a/usr/local/pkg/miniupnpd.inc
+++ b/usr/local/pkg/miniupnpd.inc
@@ -156,9 +156,13 @@
 				/* above function returns iface if fail */
 				if($if!=$iface) {
 					$addr = find_interface_ip($if);
+					$bits = find_interface_subnet($if);
 					/* check that the interface has an ip address before adding parameters */
 					if (is_ipaddr($addr)) {
-						$config_text .= "listening_ip={$if}\n";
+						if ($upnp_config['listen_on_iface'])
+							$config_text .= "listening_ip={$if}\n";
+						else
+							$config_text .= "listening_ip={$addr}/{$bits}\n";
 						if(!$ifaces_active) {
 							$webgui_ip = $addr;
 							$ifaces_active = $iface;
diff --git a/usr/local/pkg/miniupnpd.xml b/usr/local/pkg/miniupnpd.xml
index 6fc054f06a..65fd76f4d8 100644
--- a/usr/local/pkg/miniupnpd.xml
+++ b/usr/local/pkg/miniupnpd.xml
@@ -35,7 +35,7 @@
 		<field>
 			<name>UPnP &amp; NAT-PMP Settings</name>
 			<type>listtopic</type>
-			<enablefields>enable_upnp,enable_natpmp,iface_array,overridewanip,upnpqueue,logpackets,sysuptime,permdefault,permuser1,permuser2,permuser3,permuser4</enablefields>
+			<enablefields>enable_upnp,enable_natpmp,listen_on_iface,iface_array,overridewanip,upnpqueue,logpackets,sysuptime,permdefault,permuser1,permuser2,permuser3,permuser4</enablefields>
 		</field>
 		<field>
 			<fielddescr>Enable UPnP &amp; NAT-PMP</fielddescr>
@@ -80,6 +80,11 @@
 			<description>You can use the CTRL or COMMAND key to select multiple interfaces.</description>
 			<required/>
 		</field>
+		<field>
+			<fielddescr>Listen on interface instead of interface's IPv4 address</fielddescr>
+			<fieldname>listen_on_iface</fieldname>
+			<type>checkbox</type>
+		</field>			
 		<field>
 			<fielddescr>Maximum Download Speed (Kbits/second)</fielddescr>
 			<fieldname>download</fieldname>