p2partisan 1.03

#!/bin/sh
#
# p2partisan v1.3 (14/10/2013)
#
#########################################################
# Adjust location where the files are kept
cd /cifs1/p2partisan
#
# Edit the file "blacklists" to customise if needed
# Edit the "whitelist" to overwrite the blacklist if needed
#
#Maximum number of logs to be recorded in a given 60 sec
maxloghour=120
# to troubleshoot blocked connection close all the secondary
# traffic e.g. p2p and try a connection to the blocked
# site/port you should find a reference in the logs.
#
# ports to be whitelisted, very important if you're running
# a service like SMTP/HTTP/IMAP/else. Separate value with
#commas - NOTE: 80,443 are always white listed
whiteports="993,25,21"
#########################################################

[ -f iptables-add ] && rm iptables-add
[ -f iptables-del ] && rm iptables-del
[ -f ipset-del ] && rm ipset-del


echo "loading modules"
# Loading ipset modules
lsmod | grep "ipt_set" > /dev/null 2>&1 || \
for module in ip_set ip_set_iptreemap ipt_set
    do
    insmod $module
    done

counter=0

echo "loading ports 80,443,$whiteports exemption"
iptabweb=`iptables -L FORWARD | grep "ports www,https" | wc -l`
if [ $iptabweb -eq 0 ]; then
    echo "iptables -I FORWARD 2 -p tcp --match multiport --sports 80,443,$whiteports -j ACCEPT
    iptables -I FORWARD 2 -p tcp --match multiport --dports 80,443,$whiteports -j ACCEPT" >> iptables-add

    elif [ $iptabweb -ne 2 ]; then
        echo "iptables -D FORWARD -p tcp --match multiport --sports 80,443,$whiteports -j ACCEPT
    iptables -D FORWARD -p tcp --match multiport --dports 80,443,$whiteports -j ACCEPT" >> iptables-add
fi
echo "iptables -D FORWARD -p tcp --match multiport --sports 80,443,$whiteports -j ACCEPT
      iptables -D FORWARD -p tcp --match multiport --dports 80,443,$whiteports -j ACCEPT" >> iptables-del

echo "loading the whitelist"
#Load the whitelist
if [ "$(ipset --swap whitelist whitelist 2>&1 | grep 'Unknown set')" != "" ]
    then
    ipset --create whitelist iptreemap
cat whitelist |
(
while read IP
do
    echo "$IP" | grep "^#" >/dev/null 2>&1 && continue
    echo "$IP" | grep "^$" >/dev/null 2>&1 && continue
        ipset -A whitelist $IP
    done
)
fi
    echo "ipset -X whitelist" >> ipset-del

iptabwhite=`iptables -L FORWARD | grep whitelist | wc -l`
if [ $iptabwhite -eq 0 ]; then
    echo "Setting whitelist iptables"
    echo "iptables -I FORWARD 5 -m set --set whitelist src,dst -j ACCEPT" >> iptables-add

    elif [ $iptabwhite -gt 1 ]; then
    echo "Re-setting whitelist iptables"
    echo "iptables -D FORWARD -m set --set whitelist src,dst -j ACCEPT" >> iptables-add
fi
    echo "iptables -D FORWARD -m set --set whitelist src,dst -j ACCEPT" >> iptables-del

# set iptables to log blacklisted related drops
logging=`iptables -L | grep "Chain LOGGING" | wc -l`
if [ $logging = 0 ]; then
    echo "iptables -N LOGGING " >> iptables-add
fi
echo "iptables -F LOGGING
iptables -A LOGGING -m limit --limit $maxloghour/hour -j LOG --log-prefix "Blacklist-Dropped: " --log-level 1
iptables -A LOGGING -j DROP" >> iptables-add

cat blacklists |
(
while read line
do
    echo "$line" | grep "^#" >/dev/null 2>&1 && continue
    echo "$line" | grep "^$" >/dev/null 2>&1 && continue
    counter=`expr $counter + 1`
    name=`echo $line |cut -d ' ' -f1`
    url=`echo $line |cut -d ' ' -f2`
    echo "loading blacklist $counter - $name"

#Load the blacklists
if [ "$(ipset --swap $name $name 2>&1 | grep 'Unknown set')" != "" ]
    then
    ipset --create $name iptreemap
    [ -e $name.lst ] || wget -q -O - "$url" | gunzip | cut -d: -f2 | grep -E "^[-0-9.]+$" > $name.lst
    for IP in $(cat $name.lst)
        do
        ipset -A $name $IP
        done
fi

echo "ipset -X $name " >> ipset-del

iptabin=`iptables -L FORWARD | grep $name | wc -l`
pos=`expr 13 + $counter`
if [ $iptabin -eq 0 ]; then
    echo "Setting FORWARD iptables"
    echo "iptables -I FORWARD $pos -m set --set $name src,dst -j LOGGING" >> iptables-add
elif [ $iptabin -gt 1 ]; then
    echo "Re-setting FORWARD iptables"
    echo "iptables -D FORWARD -m set --set $name src,dst -j LOGGING" >> iptables-add
fi
    echo "iptables -D FORWARD -m set --set $name src,dst -j LOGGING" >> iptables-del
done

)
echo "iptables -F LOGGING " >> iptables-del
echo "iptables -X LOGGING " >> iptables-del
iptables-add