X-Git-Url: http://git.rohieb.name/openwrt.git/blobdiff_plain/3d007394805916ceb2214bfd7e06d8a4899262c5..ee86864db0e116d4753187e47b3aef52e75c0111:/openwrt/package/base-files/default/etc/init.d/S45firewall

diff --git a/openwrt/package/base-files/default/etc/init.d/S45firewall b/openwrt/package/base-files/default/etc/init.d/S45firewall
index 8350ccbfe..c9986011a 100755
--- a/openwrt/package/base-files/default/etc/init.d/S45firewall
+++ b/openwrt/package/base-files/default/etc/init.d/S45firewall
@@ -1,8 +1,12 @@
 #!/bin/sh
 
 ## Please make changes in /etc/firewall.user
+${FAILSAFE:+exit}
 
 . /etc/functions.sh
+. /etc/network.overrides
+[ -e /etc/config/network ] && . /etc/config/network
+
 WAN=$(nvram get wan_ifname)
 LAN=$(nvram get lan_ifname)
 
@@ -34,7 +38,7 @@ iptables -t nat -N postrouting_rule
   iptables -A INPUT -j input_rule
 
   # allow
-  iptables -A INPUT -i \! $WAN	-j ACCEPT	# allow from lan/wifi interfaces 
+  iptables -A INPUT ${WAN:+-i \! $WAN}	-j ACCEPT	# allow from lan/wifi interfaces 
   iptables -A INPUT -p icmp	-j ACCEPT	# allow ICMP
   iptables -A INPUT -p gre	-j ACCEPT	# allow GRE
 
@@ -78,7 +82,7 @@ iptables -t nat -N postrouting_rule
 
   # allow
   iptables -A FORWARD -i br0 -o br0 -j ACCEPT
-  iptables -A FORWARD -i $LAN -o $WAN -j ACCEPT
+  [ -z "$WAN" ] || iptables -A FORWARD -i $LAN -o $WAN -j ACCEPT
 
   # reject (what to do with anything not allowed earlier)
   # uses the default -P DROP
@@ -86,7 +90,7 @@ iptables -t nat -N postrouting_rule
 ### MASQ
   iptables -t nat -A PREROUTING -j prerouting_rule
   iptables -t nat -A POSTROUTING -j postrouting_rule
-  iptables -t nat -A POSTROUTING -o $WAN -j MASQUERADE
+  [ -z "$WAN" ] || iptables -t nat -A POSTROUTING -o $WAN -j MASQUERADE
 
 ## USER RULES
 [ -f /etc/firewall.user ] && . /etc/firewall.user