#!/bin/sh
#
# Napster Port blocking - only pure SYN-packets, though.
#

source /filter/fw.conf
echo "$0"

ARG=$1
if [ ${1:-none} = "none" ]; then
    ARG="refresh"
    ipchains -F napster
else
    if [ $ARG != "refresh" -a $ARG != "purge" -a $ARG != "delete" ]; then
        echo
        echo "Usage:   $0 <refresh|purge|delete>"
        echo "Example: $0 refresh    (default)"
        echo
        exit
    fi
fi
case $ARG in ( refresh ) ACTION="-A"; ipchains -F napster;;
             ( purge )   ACTION="-D";;
             ( delete )  ACTION="-D"; ipchains -F napster; exit;;
esac

###------- Edit Rules Below -------###

# FORWARD input out
ipchains $ACTION napster -p TCP -i $IF_IP2 -y -s $NET_IP2 -d $NET_B $NAP1 -j ACCEPT
ipchains $ACTION napster -p TCP -i $IF_IP2 -y -s $NET_IP2 -d $NET_B $NAP2 -j ACCEPT
ipchains $ACTION napster -p TCP -i $IF_IP2 -y -s $NET_IP2 -d $NET_B $NAP3 -j ACCEPT

ipchains $ACTION napster -p TCP -i $IF_IP2 -y -s $NET_IP2 -d $NET_ALL $NAP1 -j REJECT -l
ipchains $ACTION napster -p TCP -i $IF_IP2 -y -s $NET_IP2 -d $NET_ALL $NAP2 -j REJECT -l
ipchains $ACTION napster -p TCP -i $IF_IP2 -y -s $NET_IP2 -d $NET_ALL $NAP3 -j REJECT -l