X-Git-Url: https://git.rohieb.name/openwrt.git/blobdiff_plain/5eca1169a020f0d082a08ff282375f2ae2915503..c68d3da2985aad2a7dc7a2376071d0516d519440:/package/iptables/files/firewall.init?ds=sidebyside

diff --git a/package/iptables/files/firewall.init b/package/iptables/files/firewall.init
index 1e39d05fd..310b0ec09 100755
--- a/package/iptables/files/firewall.init
+++ b/package/iptables/files/firewall.init
@@ -8,6 +8,7 @@ start() {
 	scan_interfaces
 	
 	config_get WAN wan ifname
+	config_get WANDEV wan device
 	config_get LAN lan ifname
 	
 	## CLEAR TABLES
@@ -17,14 +18,19 @@ start() {
 	done
 	
 	iptables -N input_rule
+	iptables -N input_wan
 	iptables -N output_rule
 	iptables -N forwarding_rule
-	
+	iptables -N forwarding_wan
+
+	iptables -t nat -N NEW
 	iptables -t nat -N prerouting_rule
+	iptables -t nat -N prerouting_wan
 	iptables -t nat -N postrouting_rule
 	
 	iptables -N LAN_ACCEPT
 	[ -z "$WAN" ] || iptables -A LAN_ACCEPT -i "$WAN" -j RETURN
+	[ -z "$WANDEV" -o "$WANDEV" = "$WAN" ] || iptables -A LAN_ACCEPT -i "$WANDEV" -j RETURN
 	iptables -A LAN_ACCEPT -j ACCEPT
 	
 	### INPUT
@@ -40,6 +46,7 @@ start() {
 	# insert accept rule or to jump to new accept-check table here
 	#
 	iptables -A INPUT -j input_rule
+	[ -z "$WAN" ] || iptables -A INPUT -i $WAN -j input_wan
 	
 	# allow
 	iptables -A INPUT -j LAN_ACCEPT	# allow from lan/wifi interfaces 
@@ -83,22 +90,29 @@ start() {
 	# insert accept rule or to jump to new accept-check table here
 	#
 	iptables -A FORWARD -j forwarding_rule
+	[ -z "$WAN" ] || iptables -A FORWARD -i $WAN -j forwarding_wan
 	
 	# allow
-	iptables -A FORWARD -i br0 -o br0 -j ACCEPT
+	iptables -A FORWARD -i $LAN -o $LAN -j ACCEPT
 	[ -z "$WAN" ] || iptables -A FORWARD -i $LAN -o $WAN -j ACCEPT
 	
 	# reject (what to do with anything not allowed earlier)
 	# uses the default -P DROP
 	
 	### MASQ
+	iptables -t nat -A PREROUTING -m state --state NEW -p tcp -j NEW 
 	iptables -t nat -A PREROUTING -j prerouting_rule
+	[ -z "$WAN" ] || iptables -t nat -A PREROUTING -i "$WAN" -j prerouting_wan
 	iptables -t nat -A POSTROUTING -j postrouting_rule
 	[ -z "$WAN" ] || iptables -t nat -A POSTROUTING -o $WAN -j MASQUERADE
-	
+
+	iptables -t nat -A NEW -m limit --limit 50 --limit-burst 100 -j RETURN && \
+		iptables -t nat -A NEW -j DROP
+
 	## USER RULES
 	[ -f /etc/firewall.user ] && . /etc/firewall.user
 	[ -n "$WAN" -a -e /etc/config/firewall ] && {
+		export WAN
 		awk -f /usr/lib/common.awk -f /usr/lib/firewall.awk /etc/config/firewall | ash
 	}
 }
@@ -108,8 +122,10 @@ stop() {
 	iptables -P OUTPUT ACCEPT
 	iptables -P FORWARD ACCEPT
 	iptables -F
+	iptables -X
 	iptables -t nat -P PREROUTING ACCEPT
 	iptables -t nat -P POSTROUTING ACCEPT
 	iptables -t nat -P OUTPUT ACCEPT
 	iptables -t nat -F
+	iptables -t nat -X
 }