diff mbox series

[1/3] network/stress/mutlicast/packet-flood: Update to tst_net.sh

Message ID 20201116124611.16919-2-lkml@jv-coder.de
State Changes Requested
Headers show
Series Convert network stress tests to tst_net.sh | expand

Commit Message

Joerg Vehlow Nov. 16, 2020, 12:46 p.m. UTC 
From: Joerg Vehlow <joerg.vehlow@aox-tech.de>

Signed-off-by: Joerg Vehlow <joerg.vehlow@aox-tech.de>
---
 .../multicast/packet-flood/mcast4-pktfld01    | 114 ++++-------------
 .../multicast/packet-flood/mcast4-pktfld02    | 116 ++++--------------
 .../multicast/packet-flood/mcast6-pktfld01    | 112 ++++-------------
 .../multicast/packet-flood/mcast6-pktfld02    | 114 ++++-------------
 4 files changed, 85 insertions(+), 371 deletions(-)

Comments

Petr Vorel Nov. 16, 2020, 7:31 p.m. UTC | #1 
Hi Joerg,

> From: Joerg Vehlow <joerg.vehlow@aox-tech.de>

> Signed-off-by: Joerg Vehlow <joerg.vehlow@aox-tech.de>
> ---
>  .../multicast/packet-flood/mcast4-pktfld01    | 114 ++++-------------
>  .../multicast/packet-flood/mcast4-pktfld02    | 116 ++++--------------
>  .../multicast/packet-flood/mcast6-pktfld01    | 112 ++++-------------
>  .../multicast/packet-flood/mcast6-pktfld02    | 114 ++++-------------
Thanks a lot!
Could you please merge files into single one:
mcast{4,6}-pktfld01 => mcast-pktfld01
mcast{4,6}-pktfld02 => mcast-pktfld02

as done previously in other multicast and route tests?

Could you also add ".sh" extension to the files? (it's then obvious it's shell,
not a compiled binary).

NOTE: $TST_IPVER is often used.

Also, please remove all bogus comments like GPL verbose text (replaced by SPDX)
and also bogus comments like:
# Test description

The comment at the top should be small, e.g.:
# SPDX-License-Identifier: GPL-2.0-or-later
# Copyright (c) International Business Machines  Corp., 2006
# your copyright
# Author: Mitsuru Chinen <mitch@jp.ibm.com>

# joining a IPv4/IPv6 multicast group on a single socket, then receiving a large
# number of UDP packets at the socket

You also mix tabs and spaces. We usually prefer tabs, but please reformat whole
file.

>  4 files changed, 85 insertions(+), 371 deletions(-)

> diff --git a/testcases/network/stress/multicast/packet-flood/mcast4-pktfld01 b/testcases/network/stress/multicast/packet-flood/mcast4-pktfld01
> index c1ee513d4..20284569d 100644
> --- a/testcases/network/stress/multicast/packet-flood/mcast4-pktfld01
> +++ b/testcases/network/stress/multicast/packet-flood/mcast4-pktfld01
> @@ -42,41 +42,20 @@
>  #trace_logic=${trace_logic:-"set -x"}
>  $trace_logic
Please remove this.

> -# The test case ID, the test case count and the total number of test case
> -TCID=mcast4-pktfld01
> -TST_TOTAL=1
> -TST_COUNT=1
> -export TCID
> -export TST_COUNT
> -export TST_TOTAL
> -
> -# 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
> +TST_TESTFUNC=test_body
> +TST_NEEDS_ROOT=1
> +TST_SETUP=do_setup
> +TST_CLEANUP=do_cleanup

>  # The number of the test link where tests run
>  LINK_NUM=${LINK_NUM:-0}
LINK_NUM is not needed

> -# 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
> -
>  # Multicast Address
>  MCAST_ADDR=224.10.0.1
MCAST_ADDR is replaced by MCAST_IPV{4,6}_ADDR in tst_net_stress.sh (which is
used by mcast-lib.sh, see below).

> +. tst_net.sh

NOTE:
other multicast tests use
testcases/network/stress/multicast/grp-operation/mcast-lib.sh, which also uses
testcases/network/stress/ns-tools/tst_net_stress.sh. I wrote them some time ago
(today I'd do things differently), they deserve cleanup (so does also my rewrite
of multicast stress tests). Even they're not perfect, it'd be probably better to
use it to avoid redundancy.

>  # Function: do_cleanup
> @@ -89,11 +68,7 @@ do_cleanup()
>  {
>      # Make sure to kill the multicast receiver and sender
>      killall -SIGHUP ns-mcast_receiver >/dev/null 2>&1
> -    $LTP_RSH $RHOST killall -SIGHUP ns-udpsender >/dev/null 2>&1
> -
> -    # Clean up each interface
> -    initialize_if lhost ${LINK_NUM}
> -    initialize_if rhost ${LINK_NUM}
> +	tst_rhost_run -c "killall -SIGHUP ns-udpsender >/dev/null 2>&1"
>  }
Also cleanup is handled safer (if I remember correctly using killall -SIGHUP in
original do_cleanup() does not work).


> @@ -107,57 +82,15 @@ do_cleanup()
>  #-----------------------------------------------------------------------
>  do_setup()
>  {
> -    # Initialize the system configuration
> -    do_cleanup
> -
> -    # Call do_cleanup function before exit
> -    trap do_cleanup 0
> +	local lhost_ifname=$(tst_iface lhost ${LINK_NUM})
Also {l,r}host_ifname is not needed. You use $(tst_iface rhost) for -I
parameter, see mcast_setup() in mcast-lib.sh.

Kind regards,
Petr
diff mbox series

Patch

diff --git a/testcases/network/stress/multicast/packet-flood/mcast4-pktfld01 b/testcases/network/stress/multicast/packet-flood/mcast4-pktfld01
index c1ee513d4..20284569d 100644
--- a/testcases/network/stress/multicast/packet-flood/mcast4-pktfld01
+++ b/testcases/network/stress/multicast/packet-flood/mcast4-pktfld01
@@ -42,41 +42,20 @@ 
 #trace_logic=${trace_logic:-"set -x"}
 $trace_logic
 
-# The test case ID, the test case count and the total number of test case
-TCID=mcast4-pktfld01
-TST_TOTAL=1
-TST_COUNT=1
-export TCID
-export TST_COUNT
-export TST_TOTAL
-
-# 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
+TST_TESTFUNC=test_body
+TST_NEEDS_ROOT=1
+TST_SETUP=do_setup
+TST_CLEANUP=do_cleanup
 
 # The number of the test link where tests run
 LINK_NUM=${LINK_NUM:-0}
 
-# 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
-
 # Multicast Address
 MCAST_ADDR=224.10.0.1
 
 
+. tst_net.sh
+
 #-----------------------------------------------------------------------
 #
 # Function: do_cleanup
@@ -89,11 +68,7 @@  do_cleanup()
 {
     # Make sure to kill the multicast receiver and sender
     killall -SIGHUP ns-mcast_receiver >/dev/null 2>&1
-    $LTP_RSH $RHOST killall -SIGHUP ns-udpsender >/dev/null 2>&1
-
-    # Clean up each interface
-    initialize_if lhost ${LINK_NUM}
-    initialize_if rhost ${LINK_NUM}
+	tst_rhost_run -c "killall -SIGHUP ns-udpsender >/dev/null 2>&1"
 }
 
 
@@ -107,57 +82,15 @@  do_cleanup()
 #-----------------------------------------------------------------------
 do_setup()
 {
-    # Initialize the system configuration
-    do_cleanup
-
-    # Call do_cleanup function before exit
-    trap do_cleanup 0
+	local lhost_ifname=$(tst_iface lhost ${LINK_NUM})
 
     # Unset the maximum number of processes
     ulimit -u unlimited
 
-    # 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
-
-    # 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}"
-
-    # Make sure the connectvity
-    check_icmpv4_connectivity $lhost_ifname $rhost_addr
-    if [ $? -ne 0 ]; then
-	tst_resm TBROK "There is no IPv4 connectivity."
-	exit 1
-    fi
-
     # Make sure the sysctl values
     sysctl -w net.ipv4.igmp_max_memberships=20 >/dev/null
     if [ $? -ne 0 ]; then
-	tst_resm TBROK "Failed to set the sysctl value regarding multicast"
-	exit $TST_TOTAL
+		tst_brk TBROK "Failed to set the sysctl value regarding multicast"
     fi
 
     sysctl -w net.ipv4.igmp_max_msf=10 >/dev/null
@@ -173,35 +106,30 @@  do_setup()
 #
 
 # Test description
-tst_resm TINFO "Verify that the kernel is not crashed when joining a IPv4 multicast group a single socket, then receiving a large number of UDP packets at the socket in $NS_DURATION [sec]"
 
-do_setup
+test_body()
+{
+	local lhost_ifname=$(tst_iface lhost ${LINK_NUM})
+	local rhost_ifname=$(tst_iface rhost ${LINK_NUM})
+
+	tst_res TINFO "Verify that the kernel is not crashed when joining a IPv4 multicast group a single socket, then receiving a large number of UDP packets at the socket in $NS_DURATION [sec]"
 
 # Find the available consecutive ports
 mcast_port=`find_portbundle udp 1025 1`
 if [ $? -ne 0 ]; then
-    tst_resm TBROK "No port is available."
-    exit 1
+		tst_brk TBROK "No port is available."
 fi
 
 # Run a receiver
 ns-mcast_receiver -f 4 -I $lhost_ifname -m $MCAST_ADDR -p $mcast_port -b
 if [ $? -ne 0 ]; then
-    tst_resm TBROK "Failed to start multicast receiver"
-    exit 1
+		tst_brk TBROK "Failed to start multicast receiver"
 fi
 
 # Run a sender
-ret=`$LTP_RSH $RHOST ${LTPROOT}/testcases/bin/ns-udpsender -D $MCAST_ADDR -f 4 -p $mcast_port -s 32767 -m -I $rhost_ifname -t $NS_DURATION' ; echo $?'`
-if [ $ret -ne 0 ]; then
-    tst_resm TBROK "Failed to start multicast sender"
-    exit 1
-fi
+	tst_rhost_run -s -c "ns-udpsender -D $MCAST_ADDR -f 4 -p $mcast_port -s 32767 -m -I $rhost_ifname -t $NS_DURATION"
 
-#-----------------------------------------------------------------------
-#
-# Clean up
-#
+	tst_res TPASS "Test is finished successfully."
+}
 
-tst_resm TPASS "Test is finished successfully."
-exit 0
+tst_run
diff --git a/testcases/network/stress/multicast/packet-flood/mcast4-pktfld02 b/testcases/network/stress/multicast/packet-flood/mcast4-pktfld02
index b3b6134c3..ac591fce1 100644
--- a/testcases/network/stress/multicast/packet-flood/mcast4-pktfld02
+++ b/testcases/network/stress/multicast/packet-flood/mcast4-pktfld02
@@ -43,42 +43,18 @@ 
 #trace_logic=${trace_logic:-"set -x"}
 $trace_logic
 
-# The test case ID, the test case count and the total number of test case
-TCID=mcast4-pktfld02
-TST_TOTAL=1
-TST_COUNT=1
-export TCID
-export TST_COUNT
-export TST_TOTAL
-
-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
+TST_TESTFUNC=test_body
+TST_NEEDS_ROOT=1
+TST_SETUP=do_setup
+TST_CLEANUP=do_cleanup
 
 # The number of the test link where tests run
 LINK_NUM=${LINK_NUM:-0}
 
-# 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
-
 # Prefix of the multicast address
 MCAST_ADDR_PREFIX=224.10
 
-# Number of the multicast connection
-MCASTNUM_NORMAL=${MCASTNUM_NORMAL:-20}
-
+. tst_net.sh
 
 #-----------------------------------------------------------------------
 #
@@ -92,11 +68,7 @@  do_cleanup()
 {
     # Make sure to kill the multicast receiver and sender
     killall -SIGHUP ns-mcast_receiver >/dev/null 2>&1
-    $LTP_RSH $RHOST killall -SIGHUP ns-udpsender >/dev/null 2>&1
-
-    # Clean up each interface
-    initialize_if lhost ${LINK_NUM}
-    initialize_if rhost ${LINK_NUM}
+	tst_rhost_run -c "killall -SIGHUP ns-udpsender >/dev/null 2>&1"
 }
 
 
@@ -110,57 +82,15 @@  do_cleanup()
 #-----------------------------------------------------------------------
 do_setup()
 {
-    # Initialize the system configuration
-    do_cleanup
-
-    # Call do_cleanup function before exit
-    trap do_cleanup 0
+	local lhost_ifname=$(tst_iface lhost ${LINK_NUM})
 
     # Unset the maximum number of processes
     ulimit -u unlimited
 
-    # 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
-
-    # 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}"
-
-    # Make sure the connectvity
-    check_icmpv4_connectivity $lhost_ifname $rhost_addr
-    if [ $? -ne 0 ]; then
-	tst_resm TBROK "There is no IPv4 connectivity."
-	exit 1
-    fi
-
     # Make sure the sysctl values
     sysctl -w net.ipv4.igmp_max_memberships=$MCASTNUM_NORMAL >/dev/null
     if [ $? -ne 0 ]; then
-	tst_resm TBROK "Failed to set the sysctl value regarding multicast"
-	exit $TST_TOTAL
+		tst_brk TBROK "Failed to set the sysctl value regarding multicast"
     fi
 
     sysctl -w net.ipv4.igmp_max_msf=10 >/dev/null
@@ -176,16 +106,18 @@  do_setup()
 #
 
 # Test description
-tst_resm TINFO "Verify that the kernel is not crashed when joining $MCASTNUM_NORMAL IPv4 multicast groups on separate sockets, then receiving a large number of UDP packets at the each socket in $NS_DURATION [sec]"
 
-# Make sure the value of LTPROOT
-do_setup
+test_body()
+{
+	local lhost_ifname=$(tst_iface lhost ${LINK_NUM})
+	local rhost_ifname=$(tst_iface rhost ${LINK_NUM})
+
+	tst_res TINFO "Verify that the kernel is not crashed when joining $MCASTNUM_NORMAL IPv4 multicast groups on separate sockets, then receiving a large number of UDP packets at the each socket in $NS_DURATION [sec]"
 
 mcastnum=0
 mcast_port_range=`find_portbundle udp 1025 $MCASTNUM_NORMAL`
 if [ $? -ne 0 ]; then
-    tst_resm TBROK "Failed to get enough port"
-    exit 1
+		tst_brk TBROK "Failed to get enough port"
 fi
 mcast_port_top=`echo $mcast_port_range | cut -f 1 -d '-'`
 
@@ -194,8 +126,7 @@  while [ $mcastnum -lt $MCASTNUM_NORMAL ]; do
     x=`expr $mcastnum \/ 254`
     y=`expr $mcastnum % 254 + 1`
     if [ $x -gt 254 ]; then
-	tst_resm TINFO "The number of the connection is less than $mcastnum"
-	break
+			tst_res TINFO "The number of the connection is less than $mcastnum"
     fi
     mcast_addr=${MCAST_ADDR_PREFIX}.${x}.${y}
 
@@ -203,23 +134,18 @@  while [ $mcastnum -lt $MCASTNUM_NORMAL ]; do
     mcast_port=`expr $mcast_port_top + $mcastnum`
     ns-mcast_receiver -f 4 -I $lhost_ifname -m $mcast_addr -p $mcast_port -b
     if [ $? -ne 0 ]; then
-	tst_resm TBROK "Failed to start multicast receiver"
-	exit 1
+			tst_brk TBROK "Failed to start multicast receiver"
     fi
 
     # Run a sender
-    $LTP_RSH $RHOST ${LTPROOT}/testcases/bin/ns-udpsender -D $mcast_addr -f 4 -p $mcast_port -m -I $rhost_ifname -b -t $NS_DURATION
+		tst_rhost_run -s -c "ns-udpsender -D $mcast_addr -f 4 -p $mcast_port -m -I $rhost_ifname -b -t $NS_DURATION"
 
     mcastnum=`expr $mcastnum + 1`
 done
 
 sleep $NS_DURATION
-do_cleanup
 
-#-----------------------------------------------------------------------
-#
-# Clean up
-#
+	tst_res TPASS "Test is finished successfully."
+}
 
-tst_resm TPASS "Test is finished successfully."
-exit 0
+tst_run
diff --git a/testcases/network/stress/multicast/packet-flood/mcast6-pktfld01 b/testcases/network/stress/multicast/packet-flood/mcast6-pktfld01
index e9d932b43..bd20b2b07 100644
--- a/testcases/network/stress/multicast/packet-flood/mcast6-pktfld01
+++ b/testcases/network/stress/multicast/packet-flood/mcast6-pktfld01
@@ -42,37 +42,19 @@ 
 #trace_logic=${trace_logic:-"set -x"}
 $trace_logic
 
-# The test case ID, the test case count and the total number of test case
-TCID=mcast6-pktfld01
-TST_TOTAL=1
-TST_COUNT=1
-export TCID
-export TST_COUNT
-export TST_TOTAL
-
-# 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
+TST_TESTFUNC=test_body
+TST_NEEDS_ROOT=1
+TST_IPV6=6
+TST_SETUP=do_setup
+TST_CLEANUP=do_cleanup
 
 # The number of the test link where tests run
 LINK_NUM=${LINK_NUM:-0}
 
-# Network portion of the IPv6 address
-NETWORK_PART="fec0:1:1:1"
-
-# Host portion of the IPv6 address
-LHOST_HOST_PART=":2"     # local host
-RHOST_HOST_PART=":1"     # remote host
-
 # Multicast Address
 MCAST_ADDR=ff0e::1111:1
 
+. tst_net.sh
 
 #-----------------------------------------------------------------------
 #
@@ -86,11 +68,7 @@  do_cleanup()
 {
     # Make sure to kill the multicast receiver and sender
     killall -SIGHUP ns-mcast_receiver >/dev/null 2>&1
-    $LTP_RSH $RHOST killall -SIGHUP ns-udpsender >/dev/null 2>&1
-
-    # Clean up each interface
-    initialize_if lhost ${LINK_NUM}
-    initialize_if rhost ${LINK_NUM}
+	tst_rhost_run -c "killall -SIGHUP ns-udpsender >/dev/null 2>&1"
 }
 
 
@@ -104,57 +82,15 @@  do_cleanup()
 #-----------------------------------------------------------------------
 do_setup()
 {
-    # Initialize the system configuration
-    do_cleanup
-
-    # Call do_cleanup function before exit
-    trap do_cleanup 0
+	local lhost_ifname=$(tst_iface lhost ${LINK_NUM})
 
     # Unset the maximum number of processes
     ulimit -u unlimited
 
-    # 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
-
-    # 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}"
-
-    # Make sure the connectvity
-    check_icmpv6_connectivity $lhost_ifname $rhost_addr
-    if [ $? -ne 0 ]; then
-	tst_resm TBROK "There is no IPv6 connectivity."
-	exit 1
-    fi
-
     # Make sure the sysctl values
     sysctl -w net.ipv6.conf.all.force_mld_version=0 >/dev/null
     if [ $? -ne 0 ]; then
-	tst_resm TBROK "Failed to set the sysctl value regarding multicast"
-	exit $TST_TOTAL
+		tst_brk TBROK "Failed to set the sysctl value regarding multicast"
     fi
 
     sysctl -w net.ipv6.conf.${lhost_ifname}.force_mld_version=0 >/dev/null
@@ -168,36 +104,30 @@  do_setup()
 #
 #
 
+test_body()
+{
+	local lhost_ifname=$(tst_iface lhost ${LINK_NUM})
+	local rhost_ifname=$(tst_iface rhost ${LINK_NUM})
+	
 # Test description
-tst_resm TINFO "Verify that the kernel is not crashed when joining a IPv6 multicast group a single socket, then receiving a large number of UDP packets at the socket in $NS_DURATION [sec]"
-
-do_setup
+	tst_res TINFO "Verify that the kernel is not crashed when joining a IPv6 multicast group a single socket, then receiving a large number of UDP packets at the socket in $NS_DURATION [sec]"
 
 # Find the available consecutive ports
 mcast_port=`find_portbundle udp 1025 1`
 if [ $? -ne 0 ]; then
-    tst_resm TBROK "No port is available."
-    exit 1
+		tst_brk TBROK "No port is available."
 fi
 
 # Run a receiver
 ns-mcast_receiver -f 6 -I $lhost_ifname -m $MCAST_ADDR -p $mcast_port -b
 if [ $? -ne 0 ]; then
-    tst_resm TBROK "Failed to start multicast receiver"
-    exit 1
+		tst_brk TBROK "Failed to start multicast receiver"
 fi
 
 # Run a sender
-ret=`$LTP_RSH $RHOST ${LTPROOT}/testcases/bin/ns-udpsender -D $MCAST_ADDR -f 6 -p $mcast_port -s 32767 -m -I $rhost_ifname -t $NS_DURATION' ; echo $?'`
-if [ $ret -ne 0 ]; then
-    tst_resm TBROK "Failed to start multicast sender"
-    exit 1
-fi
+	tst_rhost_run -s -c "ns-udpsender -D $MCAST_ADDR -f 6 -p $mcast_port -s 32767 -m -I $rhost_ifname -t $NS_DURATION"
 
-#-----------------------------------------------------------------------
-#
-# Clean up
-#
+	tst_res TPASS "Test is finished successfully."
+}
 
-tst_resm TPASS "Test is finished successfully."
-exit 0
+tst_run
diff --git a/testcases/network/stress/multicast/packet-flood/mcast6-pktfld02 b/testcases/network/stress/multicast/packet-flood/mcast6-pktfld02
index e8187b1a6..201a63a05 100644
--- a/testcases/network/stress/multicast/packet-flood/mcast6-pktfld02
+++ b/testcases/network/stress/multicast/packet-flood/mcast6-pktfld02
@@ -43,39 +43,19 @@ 
 #trace_logic=${trace_logic:-"set -x"}
 $trace_logic
 
-# The test case ID, the test case count and the total number of test case
-TCID=mcast6-pktfld02
-TST_TOTAL=1
-TST_COUNT=1
-export TCID
-export TST_COUNT
-export TST_TOTAL
-
-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
+TST_TESTFUNC=test_body
+TST_NEEDS_ROOT=1
+TST_IPV6=6
+TST_SETUP=do_setup
+TST_CLEANUP=do_cleanup
 
 # The number of the test link where tests run
 LINK_NUM=${LINK_NUM:-0}
 
-# Network portion of the IPv6 address
-NETWORK_PART="fec0:1:1:1"
-
-# Host portion of the IPv6 address
-LHOST_HOST_PART=":2"	# local host
-RHOST_HOST_PART=":1"	# remote host
-
 # Prefix of the multicast address
 MCAST_ADDR_PREFIX=ff0e::1111
 
-# Number of the multicast connection
-MCASTNUM_NORMAL=${MCASTNUM_NORMAL:-20}
-
+. tst_net.sh
 
 #-----------------------------------------------------------------------
 #
@@ -89,11 +69,7 @@  do_cleanup()
 {
     # Make sure to kill the multicast receiver and sender
     killall -SIGHUP ns-mcast_receiver >/dev/null 2>&1
-    $LTP_RSH $RHOST killall -SIGHUP ns-udpsender >/dev/null 2>&1
-
-    # Clean up each interface
-    initialize_if lhost ${LINK_NUM}
-    initialize_if rhost ${LINK_NUM}
+	tst_rhost_run -c "killall -SIGHUP ns-udpsender >/dev/null 2>&1"
 }
 
 
@@ -107,57 +83,15 @@  do_cleanup()
 #-----------------------------------------------------------------------
 do_setup()
 {
-    # Initialize the system configuration
-    do_cleanup
-
-    # Call do_cleanup function before exit
-    trap do_cleanup 0
+	local lhost_ifname=$(tst_iface lhost ${LINK_NUM})
 
     # Unset the maximum number of processes
     ulimit -u unlimited
 
-    # 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
-
-    # 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}"
-
-    # Make sure the connectvity
-    check_icmpv6_connectivity $lhost_ifname $rhost_addr
-    if [ $? -ne 0 ]; then
-	tst_resm TBROK "There is no IPv6 connectivity."
-	exit 1
-    fi
-
     # Make sure the sysctl values
     sysctl -w net.ipv6.conf.all.force_mld_version=0 >/dev/null
     if [ $? -ne 0 ]; then
-	tst_resm TBROK "Failed to set the sysctl value regarding multicast"
-	exit $TST_TOTAL
+		tst_brk TBROK "Failed to set the sysctl value regarding multicast"
     fi
 
     sysctl -w net.ipv6.conf.${lhost_ifname}.force_mld_version=0 >/dev/null
@@ -171,24 +105,25 @@  do_setup()
 #
 #
 
-# Test description
-tst_resm TINFO "Verify that the kernel is not crashed when joining $MCASTNUM_NORMAL IPv6 multicast groups on separate sockets, then receiving a large number of UDP packets at the each socket in $NS_DURATION [sec]"
+test_body()
+{
+	local lhost_ifname=$(tst_iface lhost ${LINK_NUM})
+	local rhost_ifname=$(tst_iface rhost ${LINK_NUM})
 
-# Make sure the value of LTPROOT
-do_setup
+# Test description
+	tst_res TINFO "Verify that the kernel is not crashed when joining $MCASTNUM_NORMAL IPv6 multicast groups on separate sockets, then receiving a large number of UDP packets at the each socket in $NS_DURATION [sec]"
 
 mcastnum=0
 mcast_port_range=`find_portbundle udp 1025 $MCASTNUM_NORMAL`
 if [ $? -ne 0 ]; then
-    tst_resm TBROK "Failed to get enough port"
-    exit 1
+		tst_brk TBROK "Failed to get enough port"
 fi
 mcast_port_top=`echo $mcast_port_range | cut -f 1 -d '-'`
 
 while [ $mcastnum -lt $MCASTNUM_NORMAL ]; do
     # Define the multicast address
     if [ $mcastnum -gt 65535 ]; then
-	tst_resm TINFO "The number of the connection is less than 65535"
+			tst_res TINFO "The number of the connection is less than 65535"
 	break
     fi
     mcastnum_hex=`printf "%x" $mcastnum`
@@ -198,23 +133,18 @@  while [ $mcastnum -lt $MCASTNUM_NORMAL ]; do
     mcast_port=`expr $mcast_port_top + $mcastnum`
     ns-mcast_receiver -f 6 -I $lhost_ifname -m $mcast_addr -p $mcast_port -b
     if [ $? -ne 0 ]; then
-	tst_resm TBROK "Failed to start multicast receiver"
-	exit 1
+			tst_brk TBROK "Failed to start multicast receiver"
     fi
 
     # Run a sender
-    $LTP_RSH $RHOST ${LTPROOT}/testcases/bin/ns-udpsender -D $mcast_addr -f 6 -p $mcast_port -m -I $rhost_ifname -b -t $NS_DURATION
+		tst_rhost_run -s -c "ns-udpsender -D $mcast_addr -f 6 -p $mcast_port -m -I $rhost_ifname -b -t $NS_DURATION"
 
     mcastnum=`expr $mcastnum + 1`
 done
 
 sleep $NS_DURATION
-do_cleanup
 
-#-----------------------------------------------------------------------
-#
-# Clean up
-#
+	tst_res TPASS "Test is finished successfully."
+}
 
-tst_resm TPASS "Test is finished successfully."
-exit 0
+tst_run