firewall: - replace uci firewall with a modular dual stack implementation developed...

[openwrt/staging/yousong.git] / package / firewall / files / lib / core_rule.sh

diff --git a/package/firewall/files/lib/core_rule.sh b/package/firewall/files/lib/core_rule.sh
new file mode 100644 (file)
index 0000000..e6a276e
--- /dev/null
+++ b/package/firewall/files/lib/core_rule.sh
@@ -0,0 +1,66 @@
+# Copyright (C) 2009-2010 OpenWrt.org
+
+fw_config_get_rule() {
+       [ "${rule_NAME}" != "$1" ] || return
+       fw_config_get_section "$1" rule { \
+               string _name "$1" \
+               string name "" \
+               string src "" \
+               ipaddr src_ip "" \
+               string src_mac "" \
+               string src_port "" \
+               string dest "" \
+               ipaddr dest_ip "" \
+               string dest_mac "" \
+               string dest_port "" \
+               string icmp_type "" \
+               string proto "tcpudp" \
+               string target "" \
+       } || return
+       [ -n "$rule_name" ] || rule_name=$rule__name
+       [ "$rule_proto" == "icmp" ] || rule_icmp_type=
+}
+
+fw_load_rule() {
+       fw_config_get_rule "$1"
+
+       fw_callback pre rule
+
+       rule_src_port=$(fw_get_port_range $rule_src_port)
+       rule_dest_port=$(fw_get_port_range $rule_dest_port)
+       
+       local chain=input
+       [ -n "$rule_src" ] && {
+               [ -z "$rule_dest" ] && {
+                       chain=zone_${rule_src}
+               } || {
+                       chain=zone_${rule_src}_forward
+               }
+       }
+
+       local target=$rule_target
+       [ -z "$target" ] && {
+               target=REJECT
+       }
+       [ -n "$dest" ] && {
+               target=zone_${rule_dest}_${target}
+       }
+
+       local rule_pos
+       eval 'rule_pos=$((++FW__RULE_COUNT_'$chain'))'
+
+       [ "$rule_proto" == "tcpudp" ] && rule_proto="tcp udp"
+       for rule_proto in $rule_proto; do
+               fw add I f $chain $target $rule_pos { $rule_src_ip $rule_dest_ip } { \
+                       ${rule_proto:+-p $rule_proto} \
+                       ${rule_src_ip:+-s $rule_src_ip} \
+                       ${rule_src_port:+--sport $rule_src_port} \
+                       ${rule_src_mac:+-m mac --mac-source $rule_src_mac} \
+                       ${rule_dest_ip:+-d $rule_dest_ip} \
+                       ${rule_dest_port:+--dport $rule_dest_port} \
+                       ${rule_icmp_type:+--icmp-type $rule_icmp_type} \
+               }
+       done
+
+       fw_callback post rule
+}