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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 "$1" \
string name "" \
string src "" \
ipaddr src_ip "" \
string src_mac "" \
string src_port "" \
string dest "" \
ipaddr dest_ip "" \
string dest_port "" \
string icmp_type "" \
string proto "tcpudp" \
string target "" \
string family "" \
string limit "" \
string limit_burst "" \
string extra "" \
} || return
[ -n "$rule_name" ] || rule_name=$rule__name
}
fw_load_rule() {
fw_config_get_rule "$1"
[ "$rule_target" != "NOTRACK" ] || [ -n "$rule_src" ] || [ "$rule_src" != "*" ] || {
fw_log error "NOTRACK rule ${rule_name}: needs src, skipping"
return 0
}
fw_callback pre rule
local table=f
local chain=input
local target="${rule_target:-REJECT}"
if [ "$target" == "NOTRACK" ]; then
table=r
chain="zone_${rule_src}_notrack"
else
if [ -n "$rule_src" ]; then
if [ "$rule_src" != "*" ]; then
chain="zone_${rule_src}${rule_dest:+_forward}"
else
chain="${rule_dest:+forward}"
chain="${chain:-input}"
fi
fi
if [ -n "$rule_dest" ]; then
if [ "$rule_dest" != "*" ]; then
target="zone_${rule_dest}_${target}"
elif [ "$target" = REJECT ]; then
target=reject
fi
fi
fi
local mode
fw_get_family_mode mode ${rule_family:-x} "$rule_src" I
local src_spec dest_spec
fw_get_negation src_spec '-s' "${rule_src_ip:+$rule_src_ip/$rule_src_ip_prefixlen}"
fw_get_negation dest_spec '-d' "${rule_dest_ip:+$rule_dest_ip/$rule_dest_ip_prefixlen}"
[ "$rule_proto" == "tcpudp" ] && rule_proto="tcp udp"
local pr; for pr in $rule_proto; do
local sports dports itypes
case "$pr" in
icmp|icmpv6|1|58)
sports=""; dports=""
itypes="$rule_icmp_type"
;;
*)
sports="$rule_src_port"
dports="$rule_dest_port"
itypes=""
;;
esac
fw_get_negation pr '-p' "$pr"
local sp; for sp in ${sports:-""}; do
fw_get_port_range sp $sp
fw_get_negation sp '--sport' "$sp"
local dp; for dp in ${dports:-""}; do
fw_get_port_range dp $dp
fw_get_negation dp '--dport' "$dp"
local sm; for sm in ${rule_src_mac:-""}; do
fw_get_negation sm '--mac-source' "$sm"
local it; for it in ${itypes:-""}; do
fw_get_negation it '--icmp-type' "$it"
fw add $mode $table $chain $target + \
{ $rule_src_ip $rule_dest_ip } { \
$src_spec $dest_spec \
$pr $sp $dp $it \
${sm:+-m mac $sm} \
${rule_limit:+-m limit --limit $rule_limit \
${rule_limit_burst:+--limit-burst $rule_limit_burst}} \
$rule_extra \
}
done
done
done
done
done
fw_callback post rule
}
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