#!/bin/sh
################################################################################
## ##
## Copyright (c) International Business Machines Corp., 2006 ##
## ##
## 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. ##
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## 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 ##
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################################################################################
#
# File:
# mcast4-grpope02
#
# Description:
# Verify that the kernel is not crashed when joining lots of IPv4 multicast
# groups on lots of sockets
#
# Setup:
# See ltp-yyyymmdd/testcases/network/stress/README
#
# Author:
# Mitsuru Chinen <mitch@jp.ibm.com>
#
# History:
# May 1 2006 - Created (Mitsuru Chinen)
#
#-----------------------------------------------------------------------
# Uncomment line below for debug output.
#trace_logic=${trace_logic:-"set -x"}
$trace_logic
# The test case ID, the test case count and the total number of test case
TCID=mcast4-grpope02
TST_TOTAL=1
TST_COUNT=1
export TCID
export TST_COUNT
export TST_TOTAL
# Make sure the value of LTPROOT
LTPROOT=${LTPROOT:-`(cd ../../../../.. ; pwd)`}
export LTPROOT
# Check the environmanet variable
. check_envval || exit $TST_TOTAL
# Number of the group
MCASTNUM_HEAVY=${MCASTNUM_HEAVY:-40000}
# 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
#-----------------------------------------------------------------------
#
# Function: do_cleanup
#
# Description:
# Recover the system configuration
#
#-----------------------------------------------------------------------
do_cleanup()
{
# Make sure to kill the multicast receiver and sender
killall -SIGHUP ns-mcast_join >/dev/null 2>&1
$LTP_RSH $RHOST killall -SIGHUP ns-igmp_querier >/dev/null 2>&1
# Clean up each interface
initialize_if lhost ${LINK_NUM}
initialize_if rhost ${LINK_NUM}
}
#-----------------------------------------------------------------------
#
# Function: do_setup
#
# Description:
# Configure the ssystem for the test
#
#-----------------------------------------------------------------------
do_setup()
{
# Initialize the system configuration
do_cleanup
# Call do_cleanup function before exit
trap do_cleanup 0
# Increase the maximum number of open file descriptors
fd_num=`ulimit -n`
if [ $fd_num -lt $MCASTNUM_HEAVY ]; then
ulimit -n $MCASTNUM_HEAVY
if [ $? -ne 0 ]; then
tst_resm TBROK "$MCASTNUM_HEAVY is too many for the file descriptor"
fi
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
# 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_HEAVY >/dev/null
if [ $? -ne 0 ]; then
tst_resm TBROK "Failed to set the sysctl value regarding multicast"
exit $TST_TOTAL
fi
sysctl -w net.ipv4.igmp_max_msf=10 >/dev/null
sysctl -w net.ipv4.conf.${lhost_ifname}.force_igmp_version=0 >/dev/null
sysctl -w net.ipv4.conf.all.force_igmp_version=0 >/dev/null
}
#-----------------------------------------------------------------------
#
# Main
#
#
# Test description
tst_resm TINFO "Verify that the kernel is not crashed when joining $MCASTNUM_HEAVY IPv4 multicast groups on separate sockets"
do_setup
# Run a multicast join tool
tmpfile=$TMPDIR/ns-mcast_join.$$
ns-mcast_join -m -f 4 -I $lhost_ifname -n $MCASTNUM_HEAVY -p $MCAST_ADDR_PREFIX > $tmpfile
if [ $? -ne 0 ]; then
tst_resm TBROK "Failed to start multicast joining tool Please check the environment"
rm -f $tmpfile
exit 1
fi
msg=`cat $tmpfile | grep groups`
tst_resm TINFO "Joined $msg"
rm -f $tmpfile
# Send IGMP General Query from the remote host
ret=`$LTP_RSH $RHOST ${LTPROOT}/testcases/bin/ns-igmp_querier -I $rhost_ifname -o -r 1' ; echo $?'`
if [ $ret -ne 0 ]; then
tst_resm TBROK "Failed to start IGMP querier"
exit 1
fi
#-----------------------------------------------------------------------
#
# Clean up
#
killall -SIGHUP ns-mcast_join >/dev/null 2>&1
while true ; do
ps auxw | grep -v grep | grep ns-mcast_join > /dev/null
if [ $? -ne 0 ] ; then
break
fi
done
tst_resm TPASS "Test is finished successfully."
exit 0