1 # Copyright (C) 2006 OpenWrt.org
4 print ". /etc/config/network"
5 print "proto=\"$wan_proto\""
6 print "[ -z \"$proto\" -o \"$proto\" = \"none\" ] && exit"
7 print "ifname=\"$wan_ifname\""
8 print "[ -z \"$ifname\" ] && exit"
10 print "iptables -X input_$ifname 2>&- >&-"
11 print "iptables -N input_$ifname"
12 print "iptables -X forward_$ifname 2>&- >&-"
13 print "iptables -N forward_$ifname"
14 print "iptables -t nat -X prerouting_$ifname 2>&- >&-"
15 print "iptables -t nat -N prerouting_$ifname"
17 print "iptables -A input_rule -i \"$ifname\" -j input_$ifname"
18 print "iptables -A forwarding_rule -i \"$ifname\" -j forward_$ifname"
19 print "iptables -t nat -A prerouting_rule -i \"$ifname\" -j prerouting_$ifname"
24 ($1 == "accept") || ($1 == "drop") || ($1 == "forward") {
27 if ((_l["proto"] == "") && (_l["sport"] _l["dport"] != "")) {
38 print "iptables -t nat -A prerouting_$ifname" _opt[o] str2ipt($2) target
39 print "iptables -A input_$ifname " _opt[o] str2ipt($2) target
46 print "iptables -t nat -A prerouting_$ifname" _opt[o] str2ipt($2) " -j DROP"
52 target = " -j DNAT --to " $3
55 if ((_l["proto"] == "tcp") || (_l["proto"] == "udp") || (_l["proto"] == "")) {
56 if (_l["proto"] != "") fwopts = " -p " _l["proto"]
57 fwopts = fwopts " --dport " $4
58 target = target ":" $4
63 print "iptables -t nat -A prerouting_$ifname" _opt[o] str2ipt($2) target
64 print "iptables -A forward_$ifname " _opt[o] " -d " $3 fwopts " -j ACCEPT"