#!/bin/sh

#
# You probably want to set the path to include
# nothing but local filesystems.
#
PATH=/bin:/usr/bin:/sbin:/usr/sbin
export PATH

IPVSADM=/usr/sbin/ipvsadm
IPCHAINS=/sbin/ipchains
INSMOD=/sbin/insmod
RMMOD=/sbin/rmmod
RULEPATH=/usr/src/linux/net/ipv4/rule
RULEMOD=ip_cs_curr_rule
MAKE=/usr/bin/make

case "$1" in
    start)
	if [ -x $IPVSADM ]
	then
            echo  1  >/proc/sys/net/ipv4/ip_forward
            echo  1  >/proc/sys/net/ipv4/ip_always_defrag

            $IPCHAINS -A forward -j MASQ -s 128.198.192.0/24 -d 0.0.0.0/0

            $IPVSADM -A -t 128.198.192.187:80 -s rr
            $IPVSADM -a -t 128.198.192.187:80 -r 128.198.192.193 -m
            $IPVSADM -a -t 128.198.192.187:80 -r 128.198.192.194 -m

            if [ -d $RULEPATH ]
	    then
                cd $RULEPATH
                $MAKE $RULEMOD.o
                $INSMOD $RULEMOD.o
	    fi
	fi
	;;
    stop)
	if [ -x $IPVSADM ]
	then
	    $IPVSADM -C
            $RMMOD $RULEMOD
	fi
	;;
    *)
    	echo "Usage: lcs {start|stop}"
	exit 1
esac

exit 0