1#!/bin/sh 2 3################################################################################ 4## ## 5## Copyright (c) International Business Machines Corp., 2006 ## 6## ## 7## This program is free software; you can redistribute it and#or modify ## 8## it under the terms of the GNU General Public License as published by ## 9## the Free Software Foundation; either version 2 of the License, or ## 10## (at your option) any later version. ## 11## ## 12## This program is distributed in the hope that it will be useful, but ## 13## WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY ## 14## or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License ## 15## for more details. ## 16## ## 17## You should have received a copy of the GNU General Public License ## 18## along with this program; if not, write to the Free Software ## 19## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA ## 20## ## 21## ## 22################################################################################ 23# 24# File: 25# mcast4-pktfld02 26# 27# Description: 28# Verify that the kernel is not crashed when joining plural IPv4 multicast 29# groups on separate sockets, then receiving a large number of UDP packets at 30# the each socket 31# 32# Setup: 33# See ltp-yyyymmdd/testcases/network/stress/README 34# 35# Author: 36# Mitsuru Chinen <mitch@jp.ibm.com> 37# 38# History: 39# May 1 2006 - Created (Mitsuru Chinen) 40# 41#----------------------------------------------------------------------- 42# Uncomment line below for debug output. 43#trace_logic=${trace_logic:-"set -x"} 44$trace_logic 45 46# The test case ID, the test case count and the total number of test case 47TCID=mcast4-pktfld02 48TST_TOTAL=1 49TST_COUNT=1 50export TCID 51export TST_COUNT 52export TST_TOTAL 53 54LTPROOT=${LTPROOT:-`(cd ../../../../.. ; pwd)`} 55export LTPROOT 56 57# Check the environmanet variable 58. check_envval || exit $TST_TOTAL 59 60# Dulation of the test [sec] 61NS_DURATION=${NS_DURATION:-3600} # 1 hour 62 63# The number of the test link where tests run 64LINK_NUM=${LINK_NUM:-0} 65 66# Network portion of the IPv4 address 67NETWORK_PART=${IPV4_NETWORK:-"10.0.0"} 68 69# Netmask of the IPv4 network 70NETWORK_MASK=24 71 72# Host portion of the IPv4 address 73LHOST_HOST_PART=${LHOST_IPV4_HOST:-"2"} # local host 74RHOST_HOST_PART=${RHOST_IPV4_HOST:-"1"} # remote host 75 76# Prefix of the multicast address 77MCAST_ADDR_PREFIX=224.10 78 79# Number of the multicast connection 80MCASTNUM_NORMAL=${MCASTNUM_NORMAL:-20} 81 82 83#----------------------------------------------------------------------- 84# 85# Function: do_cleanup 86# 87# Description: 88# Recover the system configuration 89# 90#----------------------------------------------------------------------- 91do_cleanup() 92{ 93 # Make sure to kill the multicast receiver and sender 94 killall -SIGHUP ns-mcast_receiver >/dev/null 2>&1 95 $LTP_RSH $RHOST killall -SIGHUP ns-udpsender >/dev/null 2>&1 96 97 # Clean up each interface 98 initialize_if lhost ${LINK_NUM} 99 initialize_if rhost ${LINK_NUM} 100} 101 102 103#----------------------------------------------------------------------- 104# 105# Function: do_setup 106# 107# Description: 108# Configure the ssystem for the test 109# 110#----------------------------------------------------------------------- 111do_setup() 112{ 113 # Initialize the system configuration 114 do_cleanup 115 116 # Call do_cleanup function before exit 117 trap do_cleanup 0 118 119 # Unset the maximum number of processes 120 ulimit -u unlimited 121 122 # name of interface of the local/remote host 123 lhost_ifname=`get_ifname lhost $LINK_NUM` 124 if [ $? -ne 0 ]; then 125 tst_resm TBROK "Failed to get the interface name at the local host" 126 exit $TST_TOTAL 127 fi 128 129 rhost_ifname=`get_ifname rhost $LINK_NUM` 130 if [ $? -ne 0 ]; then 131 tst_resm TBROK "Failed to get the interface name at the remote host" 132 exit $TST_TOTAL 133 fi 134 135 # Set IPv4 addresses to the interfaces 136 set_ipv4addr lhost $LINK_NUM $NETWORK_PART $LHOST_HOST_PART 137 if [ $? -ne 0 ]; then 138 tst_resm TBROK "Failed to add any IP address at the local host" 139 exit 1 140 fi 141 142 set_ipv4addr rhost $LINK_NUM $NETWORK_PART $RHOST_HOST_PART 143 if [ $? -ne 0 ]; then 144 tst_resm TBROK "Failed to add any IP address at the remote host" 145 exit 1 146 fi 147 148 # IPv4 address of the local/remote host 149 lhost_addr="${NETWORK_PART}.${LHOST_HOST_PART}" 150 rhost_addr="${NETWORK_PART}.${RHOST_HOST_PART}" 151 152 # Make sure the connectvity 153 check_icmpv4_connectivity $lhost_ifname $rhost_addr 154 if [ $? -ne 0 ]; then 155 tst_resm TBROK "There is no IPv4 connectivity." 156 exit 1 157 fi 158 159 # Make sure the sysctl values 160 sysctl -w net.ipv4.igmp_max_memberships=$MCASTNUM_NORMAL >/dev/null 161 if [ $? -ne 0 ]; then 162 tst_resm TBROK "Failed to set the sysctl value regarding multicast" 163 exit $TST_TOTAL 164 fi 165 166 sysctl -w net.ipv4.igmp_max_msf=10 >/dev/null 167 sysctl -w net.ipv4.conf.${lhost_ifname}.force_igmp_version=0 >/dev/null 168 sysctl -w net.ipv4.conf.all.force_igmp_version=0 >/dev/null 169} 170 171 172#----------------------------------------------------------------------- 173# 174# Main 175# 176# 177 178# Test description 179tst_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]" 180 181# Make sure the value of LTPROOT 182do_setup 183 184mcastnum=0 185mcast_port_range=`find_portbundle udp 1025 $MCASTNUM_NORMAL` 186if [ $? -ne 0 ]; then 187 tst_resm TBROK "Failed to get enough port" 188 exit 1 189fi 190mcast_port_top=`echo $mcast_port_range | cut -f 1 -d '-'` 191 192while [ $mcastnum -lt $MCASTNUM_NORMAL ]; do 193 # Define the multicast address 194 x=`expr $mcastnum \/ 254` 195 y=`expr $mcastnum % 254 + 1` 196 if [ $x -gt 254 ]; then 197 tst_resm TINFO "The number of the connection is less than $mcastnum" 198 break 199 fi 200 mcast_addr=${MCAST_ADDR_PREFIX}.${x}.${y} 201 202 # Run a receiver 203 mcast_port=`expr $mcast_port_top + $mcastnum` 204 ns-mcast_receiver -f 4 -I $lhost_ifname -m $mcast_addr -p $mcast_port -b 205 if [ $? -ne 0 ]; then 206 tst_resm TBROK "Failed to start multicast receiver" 207 exit 1 208 fi 209 210 # Run a sender 211 $LTP_RSH $RHOST ${LTPROOT}/testcases/bin/ns-udpsender -D $mcast_addr -f 4 -p $mcast_port -m -I $rhost_ifname -b -t $NS_DURATION 212 213 mcastnum=`expr $mcastnum + 1` 214done 215 216sleep $NS_DURATION 217do_cleanup 218 219#----------------------------------------------------------------------- 220# 221# Clean up 222# 223 224tst_resm TPASS "Test is finished successfully." 225exit 0 226