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openwrt-xburst/package/firewall/files/lib/core_rule.sh
2010-06-01 21:58:48 +00:00

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# Copyright (C) 2009-2010 OpenWrt.org
fw_config_get_rule() {
[ "${rule_NAME}" != "$1" ] || return
fw_config_get_section "$1" rule { \
string _name "$1" \
string name "" \
string src "" \
ipaddr src_ip "" \
string src_mac "" \
string src_port "" \
string dest "" \
ipaddr dest_ip "" \
string dest_port "" \
string icmp_type "" \
string proto "tcpudp" \
string target "" \
string family "" \
} || return
[ -n "$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 mode=$(fw_get_family_mode ${rule_family:-x} $rule_src I)
local rule_pos
eval 'rule_pos=$((++FW__RULE_COUNT_'$mode'_'$chain'))'
[ "$rule_proto" == "tcpudp" ] && rule_proto="tcp udp"
for rule_proto in $rule_proto; do
fw add $mode 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_ip_prefixlen} \
${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_ip_prefixlen} \
${rule_dest_port:+--dport $rule_dest_port} \
${rule_icmp_type:+--icmp-type $rule_icmp_type} \
}
done
fw_callback post rule
}