firewall: add sanity checks to zone default rules (patch from #5459)
authorFelix Fietkau <nbd@openwrt.org>
Thu, 24 Sep 2009 21:59:16 +0000 (21:59 +0000)
committerFelix Fietkau <nbd@openwrt.org>
Thu, 24 Sep 2009 21:59:16 +0000 (21:59 +0000)
SVN-Revision: 17713

package/firewall/files/uci_firewall.sh

index 44dd48b..3c13631 100755 (executable)
@@ -56,9 +56,9 @@ create_zone() {
        $IPTABLES -N zone_$1_DROP
        $IPTABLES -N zone_$1_REJECT
        $IPTABLES -N zone_$1_forward
-       $IPTABLES -A zone_$1_forward -j zone_$1_$5
-       $IPTABLES -A zone_$1 -j zone_$1_$3
-       $IPTABLES -A output -j zone_$1_$4
+       [ "$5" ] && $IPTABLES -A zone_$1_forward -j zone_$1_$5
+       [ "$3" ] && $IPTABLES -A zone_$1 -j zone_$1_$3
+       [ "$4" ] && $IPTABLES -A output -j zone_$1_$4
        $IPTABLES -N zone_$1_nat -t nat
        $IPTABLES -N zone_$1_prerouting -t nat
        $IPTABLES -t raw -N zone_$1_notrack