#!/bin/sh
. /etc/init.d/functions

VIP=10.10.10.12
NETMASK=255.255.255.255
NETWORK=lo
Path=/proc/sys/net/ipv4/conf
NETCMD=$(ifconfig $NETWORK:0 $VIP netmask $NETMASK)
check_lo=$(ifconfig $NETWORK:0|grep "$VIP"|wc -l)
check_route=$(route -n |grep "$VIP"|wc -l)


start(){
if [ "$check_lo" -eq "1" -a "$check_route" -eq "1" ];then
        echo "Virtual IP is running....."
   else
        ifconfig $NETWORK:0 $VIP netmask $NETMASK up
        route add -host $VIP dev $NETWORK
        echo "1" >$Path/lo/arp_ignore 
        echo "2" >$Path/lo/arp_announce 
        echo "1" >$Path/all/arp_ignore 
        echo "2" >$Path/all/arp_announce
        RETVAL1=$?
        if [ $RETVAL1 -eq 0 ];then
                action "Virtual IP startd....." /bin/true
           else
                action "Virtual IP startd....." /bin/false
        fi
fi
}
stop(){
if [ "$check_lo" -eq "1" -a "$check_route" -eq "1" ];then
        ifconfig $NETWORK:0 $VIP netmask $NETMASK down
        route del -host $VIP dev $NETWORK
        array=(
        ignore
        announce
        )
            for ((i=0;i<${#array[*]};i++))
            do
                echo "0" >$Path/lo/arp_${array[$i]}
                echo "0" >$Path/all/arp_${array[$i]}
            done
                RETVAL2=$?
                if [ $RETVAL2 -eq 0 ];then
                action "Virtual IP is stopped....." /bin/true
           else
                action "Virtual IP is stopped....." /bin/false
        fi
   else
        echo "Virtual IP is not running....."
fi
}

case "$1" in
        start)
                start
                ;;
        stop)
                stop
                ;;
        restart)
                stop
                sleep 2
                start
                ;;
        *)
                echo "USAGE: $0 {start|stop|restart}"
                ;;
esac