firwall: fix nat reflection for zones covering multiple networks

SVN-Revision: 22442

package/firewall/files/reflection.hotplug

@@ -1,5 +1,4 @@
 #!/bin/sh
-# Setup NAT reflection rules
 
 . /etc/functions.sh
 
@@ -16,6 +15,26 @@ if [ "$ACTION" = "ifup" ] && [ "$INTERFACE" = "wan" ]; then
 		iptables -t nat -A postrouting_rule -j nat_reflection_out
 	}
 
+	find_networks() {
+		find_networks_cb() {
+			local cfg="$1"
+			local zone="$2"
+
+			local name
+			config_get name "$cfg" name
+
+			[ "$name" = "$zone" ] && {
+				local network
+				config_get network "$cfg" network
+
+				echo ${network:-$zone}
+				return 1
+			}
+		}
+
+		config_foreach find_networks_cb zone "$1"
+	}
+	
 	setup_fwd() {
 		local cfg="$1"
 
@@ -26,8 +45,10 @@ if [ "$ACTION" = "ifup" ] && [ "$INTERFACE" = "wan" ]; then
 			local dest
 			config_get dest "$cfg" dest "lan"
 
-			local lanip=$(uci -P/var/state get network.$dest.ipaddr)
-			local lanmk=$(uci -P/var/state get network.$dest.netmask)
+			local net
+			for net in $(find_networks "$dest"); do
+				local lanip=$(uci -P/var/state get network.$net.ipaddr)
+				local lanmk=$(uci -P/var/state get network.$net.netmask)
 
 				local proto
 				config_get proto "$cfg" proto
@@ -70,6 +91,7 @@ if [ "$ACTION" = "ifup" ] && [ "$INTERFACE" = "wan" ]; then
 						;;
 					esac
 				done
+			done
 		}
 	}