testcases/network/stress/tcp/multi-sameport/tcp4-multi-sameport01 - platform/external/ltp - Git at Google

 #!/bin/sh

 ################################################################################
 ##                                                                            ##
 ## Copyright (c) International Business Machines  Corp., 2005                 ##
 ##                                                                            ##
 ## This program is free software;  you can redistribute it and#or modify      ##
 ## it under the terms of the GNU General Public License as published by       ##
 ## the Free Software Foundation; either version 2 of the License, or          ##
 ## (at your option) any later version.                                        ##
 ##                                                                            ##
 ## This program is distributed in the hope that it will be useful, but        ##
 ## WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY ##
 ## or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License   ##
 ## for more details.                                                          ##
 ##                                                                            ##
 ## You should have received a copy of the GNU General Public License          ##
 ## along with this program;  if not, write to the Free Software               ##
 ## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA    ##
 ##                                                                            ##
 ##                                                                            ##
 ################################################################################
 #
 # File:
 #   tcp4-multi-sameport01
 #
 # Description:
 #   Verify that the kernel is not crashed with multiple connection to the
 #   same port with the following condition:
 #     - The version of IP is IPv4
 #     - Network is not delayed
 #     - IPsec is not used
 #
 #   *) This script may be read by the other test case
 #
 # Setup:
 #   See testcases/network/stress/README
 #
 # Author:
 #   Mitsuru Chinen <mitch@jp.ibm.com>
 #
 # History:
 #	Oct 19 2005 - Created (Mitsuru Chinen)
 #
 #-----------------------------------------------------------------------
 # Uncomment line below for debug output.
 #trace_logic=${trace_logic:-"set -x"}
 $trace_logic

 # The test case ID, the test case count and the total number of test case
 TCID=${TCID:-tcp4-multi-sameport01}
 TST_TOTAL=1
 TST_COUNT=1
 export TCID
 export TST_COUNT
 export TST_TOTAL

 # Test description
 tst_resm TINFO "Verify that the kernel is not crashed with multiple connection to the same port."

 # Make sure the value of LTPROOT
 LTPROOT=${LTPROOT:-`(cd ../../../../.. ; pwd)`}
 export LTPROOT

 # Check the environmanet variable
 . check_envval || exit $TST_TOTAL

 # Dulation of the test [sec]
 NS_DURATION=${NS_DURATION:-3600}      # 1 hour

 # Quantity of the connection for multi connection test
 CONNECTION_TOTAL=${CONNECTION_TOTAL:-4000}

 #The number of the test link where tests run
 LINK_NUM=${LINK_NUM:-0}

 # The version of IP
 IP_VER=${IP_VER:-4}

 # true, if ipsec is used
 DO_IPSEC=${DO_IPSEC:-false}

 # The value of SPI
 SPI=${SPI:-1000}

 # IPsec Protocol ( ah / esp / ipcomp )
 IPSEC_PROTO=${IPSEC_PROTO:-ah}

 # IPsec Mode ( transport / tunnel )
 IPSEC_MODE=${IPSEC_MODE:-transport}

 # true, if network is delayed
 DO_NET_DELAY=${DO_NET_DELAY:-false}

 # Amount of network delay [ms]
 NET_DELAY=${NET_DELAY:-600}

 # The deflection of network delay [ms]
 NET_DELAY_DEFL=${NET_DELAY_DEFL:-200}


 #-----------------------------------------------------------------------
 #
 # Function: do_cleanup
 #
 # Description:
 #   Recover the system configuration
 #
 #-----------------------------------------------------------------------
 do_cleanup()
 {
     # Unset SAD/SPD
     output_ipsec_conf flush | setkey -c >/dev/null 2>&1
     $LTP_RSH $RHOST ${LTPROOT}/'testcases/bin/output_ipsec_conf flush | PATH=/sbin:/usr/sbin:$PATH setkey -c' >/dev/null 2>&1

     # Unset network delay
     if [ x$rhost_ifname = x ]; then
 	rhost_ifname=`get_ifname rhost $LINK_NUM`
     fi
     $LTP_RSH $RHOST "PATH=/sbin:/usr/sbin:$PATH tc qdisc del dev $rhost_ifname root netem" >/dev/null 2>&1

     # Clean up each interface
     initialize_if lhost ${LINK_NUM}
     initialize_if rhost ${LINK_NUM}

     # Kill the tcp traffic server
     killall_tcp_traffic
 }


 #-----------------------------------------------------------------------
 #
 # Setup
 #

 # Unset the maximum number of processes
 ulimit -u unlimited

 # Output the informaion
 tst_resm TINFO "- Test duration is $NS_DURATION [sec]"
 tst_resm TINFO "- Target number of the connection is $CONNECTION_TOTAL"
 tst_resm TINFO "- Version of IP is IPv${IP_VER}"

 if $DO_NET_DELAY ; then
     message=`check_netem`
     if [ $? -ne 0 ]; then
 	tst_resm TBROK "$message"
 	exit 1
     fi
     tst_resm TINFO "- Network delay is ${NET_DELAY}ms +/- ${NET_DELAY_DEFL}ms"
 fi

 if $DO_IPSEC ; then
     message=`check_setkey`
     if [ $? -ne 0 ]; then
 	tst_resm TBROK "$message"
 	exit 1
     fi

     case $IPSEC_PROTO in
 	ah)
 	tst_resm TINFO "- IPsec [ AH / $IPSEC_MODE ]"
 	;;
 	esp)
 	tst_resm TINFO "- IPsec [ ESP / $IPSEC_MODE ]"
 	;;
 	ipcomp)
 	tst_resm TINFO "- IPcomp [ $IPSEC_MODE ]"
 	;;
     esac
 fi

 # name of interface of the local/remote host
 lhost_ifname=`get_ifname lhost $LINK_NUM`
 if [ $? -ne 0 ]; then
     tst_resm TBROK "Failed to get the interface name at the local host"
     exit $TST_TOTAL
 fi

 rhost_ifname=`get_ifname rhost $LINK_NUM`
 if [ $? -ne 0 ]; then
     tst_resm TBROK "Failed to get the interface name at the remote host"
     exit $TST_TOTAL
 fi

 # Initialize the system configuration
 do_cleanup

 # Call do_cleanup function before exit
 trap do_cleanup 0

 case $IP_VER in
     4)
     # Network portion of the IPv4 address
     network_part=${IPV4_NETWORK:-"10.0.0"}

     # Netmask of the IPv4 network
     network_mask=24

     # Host portion of the IPv4 address
     lhost_host_part=${LHOST_IPV4_HOST:-"2"}     # local host
     rhost_host_part=${RHOST_IPV4_HOST:-"1"}     # remote host

     # Set IPv4 addresses to the interfaces
     set_ipv4addr lhost $LINK_NUM $network_part $lhost_host_part
     if [ $? -ne 0 ]; then
 	tst_resm TBROK "Failed to add any IP address at the local host"
 	exit 1
     fi
     set_ipv4addr rhost $LINK_NUM $network_part $rhost_host_part
     if [ $? -ne 0 ]; then
 	tst_resm TBROK "Failed to add any IP address at the remote host"
 	exit 1
     fi

     # IPv4 address of the local/remote host
     lhost_addr="${network_part}.${lhost_host_part}"
     rhost_addr="${network_part}.${rhost_host_part}"
     ;;

     6)
     # Network portion of the IPv6 address
     network_part="fd00:1:1:1"

     # Netmask of the IPv6 network
     network_mask=64

     # Host portion of the IPv6 address
     lhost_host_part=":2"     # local host
     rhost_host_part=":1"     # remote host

     # Set IPv6 addresses to the interfaces
     add_ipv6addr lhost $LINK_NUM $network_part $lhost_host_part
     if [ $? -ne 0 ]; then
 	tst_resm TBROK "Failed to add any IP address at the local host"
 	exit 1
     fi

     add_ipv6addr rhost $LINK_NUM $network_part $rhost_host_part
     if [ $? -ne 0 ]; then
 	tst_resm TBROK "Failed to add any IP address at the remote host"
 	exit 1
     fi

     # IPv6 address of the local/remote host
     lhost_addr="${network_part}:${lhost_host_part}"
     rhost_addr="${network_part}:${rhost_host_part}"
     ;;

     *)
     tst_resm TBROK "Unknown IP version"
     ;;
 esac

 # Make the network delay
 if $DO_NET_DELAY ; then
     ret=`$LTP_RSH $RHOST 'PATH=/sbin:/usr/sbin:$PATH tc' qdisc add dev $rhost_ifname root netem delay ${NET_DELAY}ms ${NET_DELAY_DEFL}ms distribution normal' ; echo $?'`
     if [ $ret -ne 0 ]; then
 	tst_resm TBROK "Failed to make the delayed network"
 	exit 1
     fi
 fi

 # Configure SAD/SPD
 if $DO_IPSEC ; then
     ipsec_log=`mktemp -p $TMPDIR`

     output_ipsec_conf src \
 	$IPSEC_PROTO $IPSEC_MODE $SPI $lhost_addr $rhost_addr \
 	    |  setkey -c 2>&1 | tee $ipsec_log
     if [ $? -ne 0 -o -s $ipsec_log ]; then
 	tst_resm TBROK "Failed to configure SAD/SPD on the local host."
 	rm -f $ipsec_log
 	exit 1
     fi

     $LTP_RSH $RHOST ${LTPROOT}/testcases/bin/output_ipsec_conf dst $IPSEC_PROTO $IPSEC_MODE $SPI $lhost_addr $rhost_addr' | PATH=/sbin:/usr/sbin:$PATH setkey -c' 2>&1 | tee $ipsec_log
     if [ $? -ne 0 -o -s $ipsec_log ]; then
 	tst_resm TBROK "Failed to configure SAD/SPD on the remote host."
 	rm -f $ipsec_log
 	exit 1
     fi
     rm -f $ipsec_log
 fi

 # Make sure the connectvity
 case $IP_VER in
     4)
     ret=`$LTP_RSH $RHOST ${LTPROOT}/testcases/bin/check_icmpv4_connectivity $rhost_ifname $lhost_addr' ; echo $?'`
     if [ $ret -ne 0 ]; then
 	tst_resm TBROK "There is no IPv4 connectivity."
 	exit 1
     fi
     ;;

     6)
     ret=`$LTP_RSH $RHOST ${LTPROOT}/testcases/bin/check_icmpv6_connectivity $rhost_ifname $lhost_addr' ; echo $?'`
     if [ $ret -ne 0 ]; then
 	tst_resm TBROK "There is no IPv6 connectivity."
 	exit 1
     fi
     ;;
 esac


 #-----------------------------------------------------------------------
 #
 # Main
 #
 #

 # Find the available consecutive ports
 server_port=`find_portbundle tcp 1025 1`
 if [ $? -ne 0 ]; then
     tst_resm TBROK "No port is available."
     exit 1
 fi

 # Run a server
 info_file=`mktemp -p $TMPDIR`
 ns-tcpserver -b -c -f $IP_VER -o $info_file -p $server_port
 if [ $? -ne 0 ]; then
     tst_resm TFAIL "Failed to run tcp traffic server."
     rm -f $info_file
     exit 1
 fi

 while true ; do
     if [ -s $info_file ]; then
 	break
     fi
 done

 server_pid=`grep PID: $info_file | cut -f 2 -d ' '`
 rm -f $info_file

 # Making connections
 connection_num=0
 while [ $connection_num -lt $CONNECTION_TOTAL ]; do
     # Run a client
     ret=`$LTP_RSH $RHOST ${LTPROOT}/testcases/bin/ns-tcpclient -b -f $IP_VER -S $lhost_addr -p $server_port' ; echo $?'`
     if [ $ret -ne 0 ]; then
 	# Failed to start any client
 	if [ $connection_num -eq 0 ]; then
 	    tst_resm TFAIL "Failed to run any client"
 	    exit 1
 	fi
 	# Failed to start a client
 	tst_resm TINFO "$connection_num seems the maximum number of the client"
 	break
     fi
     connection_num=`expr $connection_num + 1`
 done

 # Watch the TCP traffic server
 start_epoc=`date +%s`
 while true ; do
     current_epoc=`date +%s`
     elapse_epoc=`expr $current_epoc - $start_epoc`

     if [ $elapse_epoc -ge $NS_DURATION ]; then
 	killall -SIGHUP ns-tcpserver
 	break
     else
 	ps auxw | fgrep ns-tcpserver | fgrep -l $server_pid >/dev/null 2>&1
 	if [ $? -ne 0 ]; then
 	    tst_resm TFAIL "tcp traffic server is dead in $elapse_epoc [sec]"
 	    exit 1
 	fi
     fi
     sleep 1
 done


 #-----------------------------------------------------------------------
 #
 # Clean up
 #

 tst_resm TPASS "Test is finished successfully."
 exit 0
	#!/bin/sh

	################################################################################
	## ##
	## Copyright (c) International Business Machines Corp., 2005 ##
	## ##
	## This program is free software; you can redistribute it and#or modify ##
	## it under the terms of the GNU General Public License as published by ##
	## the Free Software Foundation; either version 2 of the License, or ##
	## (at your option) any later version. ##
	## ##
	## This program is distributed in the hope that it will be useful, but ##
	## WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY ##
	## or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License ##
	## for more details. ##
	## ##
	## You should have received a copy of the GNU General Public License ##
	## along with this program; if not, write to the Free Software ##
	## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA ##
	## ##
	## ##
	################################################################################
	#
	# File:
	# tcp4-multi-sameport01
	#
	# Description:
	# Verify that the kernel is not crashed with multiple connection to the
	# same port with the following condition:
	# - The version of IP is IPv4
	# - Network is not delayed
	# - IPsec is not used
	#
	# *) This script may be read by the other test case
	#
	# Setup:
	# See testcases/network/stress/README
	#
	# Author:
	# Mitsuru Chinen <mitch@jp.ibm.com>
	#
	# History:
	# Oct 19 2005 - Created (Mitsuru Chinen)
	#
	#-----------------------------------------------------------------------
	# Uncomment line below for debug output.
	#trace_logic=${trace_logic:-"set -x"}
	$trace_logic

	# The test case ID, the test case count and the total number of test case
	TCID=${TCID:-tcp4-multi-sameport01}
	TST_TOTAL=1
	TST_COUNT=1
	export TCID
	export TST_COUNT
	export TST_TOTAL

	# Test description
	tst_resm TINFO "Verify that the kernel is not crashed with multiple connection to the same port."

	# Make sure the value of LTPROOT
	LTPROOT=${LTPROOT:-`(cd ../../../../.. ; pwd)`}
	export LTPROOT

	# Check the environmanet variable
	. check_envval \|\| exit $TST_TOTAL

	# Dulation of the test [sec]
	NS_DURATION=${NS_DURATION:-3600} # 1 hour

	# Quantity of the connection for multi connection test
	CONNECTION_TOTAL=${CONNECTION_TOTAL:-4000}

	#The number of the test link where tests run
	LINK_NUM=${LINK_NUM:-0}

	# The version of IP
	IP_VER=${IP_VER:-4}

	# true, if ipsec is used
	DO_IPSEC=${DO_IPSEC:-false}

	# The value of SPI
	SPI=${SPI:-1000}

	# IPsec Protocol ( ah / esp / ipcomp )
	IPSEC_PROTO=${IPSEC_PROTO:-ah}

	# IPsec Mode ( transport / tunnel )
	IPSEC_MODE=${IPSEC_MODE:-transport}

	# true, if network is delayed
	DO_NET_DELAY=${DO_NET_DELAY:-false}

	# Amount of network delay [ms]
	NET_DELAY=${NET_DELAY:-600}

	# The deflection of network delay [ms]
	NET_DELAY_DEFL=${NET_DELAY_DEFL:-200}


	#-----------------------------------------------------------------------
	#
	# Function: do_cleanup
	#
	# Description:
	# Recover the system configuration
	#
	#-----------------------------------------------------------------------
	do_cleanup()
	{
	# Unset SAD/SPD
	output_ipsec_conf flush \| setkey -c >/dev/null 2>&1
	$LTP_RSH $RHOST ${LTPROOT}/'testcases/bin/output_ipsec_conf flush \| PATH=/sbin:/usr/sbin:$PATH setkey -c' >/dev/null 2>&1

	# Unset network delay
	if [ x$rhost_ifname = x ]; then
	rhost_ifname=`get_ifname rhost $LINK_NUM`
	fi
	$LTP_RSH $RHOST "PATH=/sbin:/usr/sbin:$PATH tc qdisc del dev $rhost_ifname root netem" >/dev/null 2>&1

	# Clean up each interface
	initialize_if lhost ${LINK_NUM}
	initialize_if rhost ${LINK_NUM}

	# Kill the tcp traffic server
	killall_tcp_traffic
	}


	#-----------------------------------------------------------------------
	#
	# Setup
	#

	# Unset the maximum number of processes
	ulimit -u unlimited

	# Output the informaion
	tst_resm TINFO "- Test duration is $NS_DURATION [sec]"
	tst_resm TINFO "- Target number of the connection is $CONNECTION_TOTAL"
	tst_resm TINFO "- Version of IP is IPv${IP_VER}"

	if $DO_NET_DELAY ; then
	message=`check_netem`
	if [ $? -ne 0 ]; then
	tst_resm TBROK "$message"
	exit 1
	fi
	tst_resm TINFO "- Network delay is ${NET_DELAY}ms +/- ${NET_DELAY_DEFL}ms"
	fi

	if $DO_IPSEC ; then
	message=`check_setkey`
	if [ $? -ne 0 ]; then
	tst_resm TBROK "$message"
	exit 1
	fi

	case $IPSEC_PROTO in
	ah)
	tst_resm TINFO "- IPsec [ AH / $IPSEC_MODE ]"
	;;
	esp)
	tst_resm TINFO "- IPsec [ ESP / $IPSEC_MODE ]"
	;;
	ipcomp)
	tst_resm TINFO "- IPcomp [ $IPSEC_MODE ]"
	;;
	esac
	fi

	# name of interface of the local/remote host
	lhost_ifname=`get_ifname lhost $LINK_NUM`
	if [ $? -ne 0 ]; then
	tst_resm TBROK "Failed to get the interface name at the local host"
	exit $TST_TOTAL
	fi

	rhost_ifname=`get_ifname rhost $LINK_NUM`
	if [ $? -ne 0 ]; then
	tst_resm TBROK "Failed to get the interface name at the remote host"
	exit $TST_TOTAL
	fi

	# Initialize the system configuration
	do_cleanup

	# Call do_cleanup function before exit
	trap do_cleanup 0

	case $IP_VER in
	4)
	# Network portion of the IPv4 address
	network_part=${IPV4_NETWORK:-"10.0.0"}

	# Netmask of the IPv4 network
	network_mask=24

	# Host portion of the IPv4 address
	lhost_host_part=${LHOST_IPV4_HOST:-"2"} # local host
	rhost_host_part=${RHOST_IPV4_HOST:-"1"} # remote host

	# Set IPv4 addresses to the interfaces
	set_ipv4addr lhost $LINK_NUM $network_part $lhost_host_part
	if [ $? -ne 0 ]; then
	tst_resm TBROK "Failed to add any IP address at the local host"
	exit 1
	fi
	set_ipv4addr rhost $LINK_NUM $network_part $rhost_host_part
	if [ $? -ne 0 ]; then
	tst_resm TBROK "Failed to add any IP address at the remote host"
	exit 1
	fi

	# IPv4 address of the local/remote host
	lhost_addr="${network_part}.${lhost_host_part}"
	rhost_addr="${network_part}.${rhost_host_part}"
	;;

	6)
	# Network portion of the IPv6 address
	network_part="fd00:1:1:1"

	# Netmask of the IPv6 network
	network_mask=64

	# Host portion of the IPv6 address
	lhost_host_part=":2" # local host
	rhost_host_part=":1" # remote host

	# Set IPv6 addresses to the interfaces
	add_ipv6addr lhost $LINK_NUM $network_part $lhost_host_part
	if [ $? -ne 0 ]; then
	tst_resm TBROK "Failed to add any IP address at the local host"
	exit 1
	fi

	add_ipv6addr rhost $LINK_NUM $network_part $rhost_host_part
	if [ $? -ne 0 ]; then
	tst_resm TBROK "Failed to add any IP address at the remote host"
	exit 1
	fi

	# IPv6 address of the local/remote host
	lhost_addr="${network_part}:${lhost_host_part}"
	rhost_addr="${network_part}:${rhost_host_part}"
	;;

	*)
	tst_resm TBROK "Unknown IP version"
	;;
	esac

	# Make the network delay
	if $DO_NET_DELAY ; then
	ret=`$LTP_RSH $RHOST 'PATH=/sbin:/usr/sbin:$PATH tc' qdisc add dev $rhost_ifname root netem delay ${NET_DELAY}ms ${NET_DELAY_DEFL}ms distribution normal' ; echo $?'`
	if [ $ret -ne 0 ]; then
	tst_resm TBROK "Failed to make the delayed network"
	exit 1
	fi
	fi

	# Configure SAD/SPD
	if $DO_IPSEC ; then
	ipsec_log=`mktemp -p $TMPDIR`

	output_ipsec_conf src \
	$IPSEC_PROTO $IPSEC_MODE $SPI $lhost_addr $rhost_addr \
	\| setkey -c 2>&1 \| tee $ipsec_log
	if [ $? -ne 0 -o -s $ipsec_log ]; then
	tst_resm TBROK "Failed to configure SAD/SPD on the local host."
	rm -f $ipsec_log
	exit 1
	fi

	$LTP_RSH $RHOST ${LTPROOT}/testcases/bin/output_ipsec_conf dst $IPSEC_PROTO $IPSEC_MODE $SPI $lhost_addr $rhost_addr' \| PATH=/sbin:/usr/sbin:$PATH setkey -c' 2>&1 \| tee $ipsec_log
	if [ $? -ne 0 -o -s $ipsec_log ]; then
	tst_resm TBROK "Failed to configure SAD/SPD on the remote host."
	rm -f $ipsec_log
	exit 1
	fi
	rm -f $ipsec_log
	fi

	# Make sure the connectvity
	case $IP_VER in
	4)
	ret=`$LTP_RSH $RHOST ${LTPROOT}/testcases/bin/check_icmpv4_connectivity $rhost_ifname $lhost_addr' ; echo $?'`
	if [ $ret -ne 0 ]; then
	tst_resm TBROK "There is no IPv4 connectivity."
	exit 1
	fi
	;;

	6)
	ret=`$LTP_RSH $RHOST ${LTPROOT}/testcases/bin/check_icmpv6_connectivity $rhost_ifname $lhost_addr' ; echo $?'`
	if [ $ret -ne 0 ]; then
	tst_resm TBROK "There is no IPv6 connectivity."
	exit 1
	fi
	;;
	esac


	#-----------------------------------------------------------------------
	#
	# Main
	#
	#

	# Find the available consecutive ports
	server_port=`find_portbundle tcp 1025 1`
	if [ $? -ne 0 ]; then
	tst_resm TBROK "No port is available."
	exit 1
	fi

	# Run a server
	info_file=`mktemp -p $TMPDIR`
	ns-tcpserver -b -c -f $IP_VER -o $info_file -p $server_port
	if [ $? -ne 0 ]; then
	tst_resm TFAIL "Failed to run tcp traffic server."
	rm -f $info_file
	exit 1
	fi

	while true ; do
	if [ -s $info_file ]; then
	break
	fi
	done

	server_pid=`grep PID: $info_file \| cut -f 2 -d ' '`
	rm -f $info_file

	# Making connections
	connection_num=0
	while [ $connection_num -lt $CONNECTION_TOTAL ]; do
	# Run a client
	ret=`$LTP_RSH $RHOST ${LTPROOT}/testcases/bin/ns-tcpclient -b -f $IP_VER -S $lhost_addr -p $server_port' ; echo $?'`
	if [ $ret -ne 0 ]; then
	# Failed to start any client
	if [ $connection_num -eq 0 ]; then
	tst_resm TFAIL "Failed to run any client"
	exit 1
	fi
	# Failed to start a client
	tst_resm TINFO "$connection_num seems the maximum number of the client"
	break
	fi
	connection_num=`expr $connection_num + 1`
	done

	# Watch the TCP traffic server
	start_epoc=`date +%s`
	while true ; do
	current_epoc=`date +%s`
	elapse_epoc=`expr $current_epoc - $start_epoc`

	if [ $elapse_epoc -ge $NS_DURATION ]; then
	killall -SIGHUP ns-tcpserver
	break
	else
	ps auxw \| fgrep ns-tcpserver \| fgrep -l $server_pid >/dev/null 2>&1
	if [ $? -ne 0 ]; then
	tst_resm TFAIL "tcp traffic server is dead in $elapse_epoc [sec]"
	exit 1
	fi
	fi
	sleep 1
	done


	#-----------------------------------------------------------------------
	#
	# Clean up
	#

	tst_resm TPASS "Test is finished successfully."
	exit 0