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[package] fireall:

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- support negations for src_ip, dest_ip, src_dip options in rules and redirects
	- add NOTRACK target to rule sections, allows to define fine grained notrack rules


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@23141 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
jow
2010-09-28 10:42:56 +00:00
parent 9ddf78a6b3
commit 1efeaa35d1
5 changed files with 42 additions and 28 deletions
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37
package/firewall/files/lib/core_rule.sh
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@@ -24,42 +24,45 @@ fw_config_get_rule() {
fw_load_rule() {
fw_config_get_rule "$1"
[ "$rule_target" != "NOTRACK" ] || [ -n "$rule_src" ] || {
fw_log error "NOTRACK rule ${rule_name}: needs src, skipping"
return 0
}
fw_callback pre rule
fw_get_port_range rule_src_port $rule_src_port
fw_get_port_range rule_dest_port $rule_dest_port
local table=f
local chain=input
[ -n "$rule_src" ] && {
[ -z "$rule_dest" ] && {
chain=zone_${rule_src}
} || {
chain=zone_${rule_src}_forward
}
}
if [ "$rule_target" == "NOTRACK" ]; then
table=r
chain="zone_${rule_src}_notrack"
elif [ -n "$rule_src" ]; then
chain="zone_${rule_src}${rule_dest:+_forward}"
fi
local target=$rule_target
[ -z "$target" ] && {
target=REJECT
}
[ -n "$dest" ] && {
target=zone_${rule_dest}_${target}
}
local target="${rule_target:-REJECT}"
[ -n "$dest" ] && target="zone_${rule_dest}_${target}"
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/$rule_dest_ip_prefixlen}"
local rule_pos
eval 'rule_pos=$((++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 } { \
fw add $mode $table $chain $target $rule_pos { $rule_src_ip $rule_dest_ip } { \
$src_spec $dest_spec \
${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} \
}