fix empty download dir error

[openwrt.git] / package / iptables / files / firewall.init

diff --git a/package/iptables/files/firewall.init b/package/iptables/files/firewall.init
index a4014f3..e1013fb 100755 (executable)
--- a/package/iptables/files/firewall.init
+++ b/package/iptables/files/firewall.init
@@ -6,10 +6,14 @@ START=45
 start() {
        include /lib/network
        scan_interfaces
+       config_load /var/state/network
        
        config_get WAN wan ifname
        config_get WANDEV wan device
        config_get LAN lan ifname
+       config_get LAN_MASK lan netmask
+       config_get LAN_IP lan ipaddr
+       LAN_NET=$(/bin/ipcalc.sh $LAN_IP $LAN_MASK | grep NETWORK | cut -d= -f2)
        
        ## CLEAR TABLES
        for T in filter nat; do
@@ -22,7 +26,8 @@ start() {
        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
@@ -99,11 +104,16 @@ start() {
        # 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 $WAN -j MASQUERADE
-       
+       ### Only LAN
+       [ -z "$WAN" ] || iptables -t nat -A POSTROUTING --src $LAN_NET/$LAN_MASK -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 ] && {