coova-chilli: add uci configuration file, init.d and firewall script

net/coova-chilli/files/chilli.firewall

@@ -0,0 +1,41 @@
+#!/bin/sh
+
+chilli_firewall() {
+    local cfg="$1"
+
+    local network ifname tun
+
+    config_get network "$cfg" network
+
+    . /lib/functions/network.sh
+    network_get_device ifname ${network:-lan}
+
+    if [ "$ifname" = "" ]
+    then
+       config_get ifname "$cfg" dhcpif
+    fi
+
+    config_get tun "$cfg" tundev
+
+    for n in ACCEPT DROP REJECT
+    do
+       iptables -F zone_${network}_${n}
+       iptables -I zone_${network}_${n} -i $tun -j $n
+       iptables -I zone_${network}_${n} -o $tun -j $n
+    done
+
+    iptables -D forward -i ${ifname} -j zone_${network}_forward
+    iptables -A forward -i ${ifname} -j DROP
+    iptables -A forward -i $tun -j zone_${network}_forward
+
+    iptables -D input -i ${ifname} -j zone_${network}
+    iptables -A input -i $tun -j zone_${network}
+
+    iptables -I zone_${network} -p tcp --dport 3990 -j ACCEPT
+    iptables -I zone_${network} -p tcp --dport 3991 -j ACCEPT
+}
+
+chilli_post_core_cb() {
+    config_load chilli
+    config_foreach chilli_firewall chilli
+}