#!/bin/sh

ethernet_interface="eth0"
#sestord02 ip address
ethernet_ping_ipaddr="172.21.3.22"
ethernet_ipaddr=$1

IFCONFIG=`which ifconfig`

$IFCONFIG $ethernet_interface up
$IFCONFIG | grep $ethernet_interface
if [ $? -ne 0 ]; then
	echo "FAIL: $ethernet_interface is not up"
	exit 1
else
	echo "PASS: $ethernet_interface is up"
fi

if [ "x$ethernet_ipaddr" != "x" ]; then
	$IFCONFIG $ethernet_interface $ethernet_ipaddr
fi

$IFCONFIG $ethernet_interface |grep 'inet addr:' |sed -e 's@inet addr:@@' |sed q | awk '{print $1}'
if [ $? -ne 0 ]; then
    echo "FAIL: ipaddr of $ethernet_interface setup failed"
	exit 1
else
	echo "PASS: ipaddr of $ethernet_interface setup success"
fi

mindatasize=56
maxdatasize=650
stepsize=100
iteration=1
datasize=$mindatasize
logfile=`/bin/mktemp`
statistics=`/bin/mktemp`
error=0

trap cleanup SIGHUP SIGINT SIGTERM

clean_tasks() {
	echo "Executing clean up tasks"
	rm -f $logfile $statistics
}

cleanup() {
    echo "Aborting script execution"
    clean_tasks
    exit 0
}

echo "start ping test for $ethernet_interface..."

while [ $datasize -le $maxdatasize ]; do
    for i in `seq 1 $iteration`; do
        ping -c 1 -s $datasize $ethernet_ping_ipaddr > $statistics
        ping_err=`echo $?`
        echo "" && cat $statistics | grep -r "PING"
        cat $statistics | grep -r "received"
        [ `echo $?` -eq 0 ] || packets_received=0 && \
            packets_received=`cat $statistics | \
                grep -r "received" | awk '{print$4}'`

		# Evaluate possible errors on the ping operation
        if [ $ping_err -ne 0 ] || [ $packets_received -eq 0 ]; then
            error=1
            echo -e `cat $statistics | grep -r PING` >> $logfile
            echo -e "Size: $datasize Iteration: $i\n" >> $logfile
        fi
    done
    let datasize=$datasize+$stepsize
done

# Report failures
if [ $error -eq 1 ]; then
    echo -e "=================== error report ===================\n"
    cat $logfile
    echo -e "====================================================\n"
    clean_tasks
    echo -e "FAIL: ping test for $ethernet_interface failed\n"
    exit 1
else
	clean_tasks
	echo -e "PASS: ping test for $ethernet_interface success\n"
fi

exit 0