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-pktfld01 26# 27# Description: 28# Verify that the kernel is not crashed when joining a IPv4 multicast group 29# a single socket, then receiving a large number of UDP packets at the socket 30# 31# Setup: 32# See testcases/network/stress/README 33# 34# Author: 35# Mitsuru Chinen <mitch@jp.ibm.com> 36# 37# History: 38# May 1 2006 - Created (Mitsuru Chinen) 39# 40#----------------------------------------------------------------------- 41# Uncomment line below for debug output. 42#trace_logic=${trace_logic:-"set -x"} 43$trace_logic 44 45# The test case ID, the test case count and the total number of test case 46TCID=mcast4-pktfld01 47TST_TOTAL=1 48TST_COUNT=1 49export TCID 50export TST_COUNT 51export TST_TOTAL 52 53# Make sure the value of LTPROOT 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# Multicast Address 77MCAST_ADDR=224.10.0.1 78 79 80#----------------------------------------------------------------------- 81# 82# Function: do_cleanup 83# 84# Description: 85# Recover the system configuration 86# 87#----------------------------------------------------------------------- 88do_cleanup() 89{ 90 # Make sure to kill the multicast receiver and sender 91 killall -SIGHUP ns-mcast_receiver >/dev/null 2>&1 92 $LTP_RSH $RHOST killall -SIGHUP ns-udpsender >/dev/null 2>&1 93 94 # Clean up each interface 95 initialize_if lhost ${LINK_NUM} 96 initialize_if rhost ${LINK_NUM} 97} 98 99 100#----------------------------------------------------------------------- 101# 102# Function: do_setup 103# 104# Description: 105# Configure the ssystem for the test 106# 107#----------------------------------------------------------------------- 108do_setup() 109{ 110 # Initialize the system configuration 111 do_cleanup 112 113 # Call do_cleanup function before exit 114 trap do_cleanup 0 115 116 # Unset the maximum number of processes 117 ulimit -u unlimited 118 119 # name of interface of the local/remote host 120 lhost_ifname=`get_ifname lhost $LINK_NUM` 121 if [ $? -ne 0 ]; then 122 tst_resm TBROK "Failed to get the interface name at the local host" 123 exit $TST_TOTAL 124 fi 125 126 rhost_ifname=`get_ifname rhost $LINK_NUM` 127 if [ $? -ne 0 ]; then 128 tst_resm TBROK "Failed to get the interface name at the remote host" 129 exit $TST_TOTAL 130 fi 131 132 # Set IPv4 addresses to the interfaces 133 set_ipv4addr lhost $LINK_NUM $NETWORK_PART $LHOST_HOST_PART 134 if [ $? -ne 0 ]; then 135 tst_resm TBROK "Failed to add any IP address at the local host" 136 exit 1 137 fi 138 139 set_ipv4addr rhost $LINK_NUM $NETWORK_PART $RHOST_HOST_PART 140 if [ $? -ne 0 ]; then 141 tst_resm TBROK "Failed to add any IP address at the remote host" 142 exit 1 143 fi 144 145 # IPv4 address of the local/remote host 146 lhost_addr="${NETWORK_PART}.${LHOST_HOST_PART}" 147 rhost_addr="${NETWORK_PART}.${RHOST_HOST_PART}" 148 149 # Make sure the connectvity 150 check_icmpv4_connectivity $lhost_ifname $rhost_addr 151 if [ $? -ne 0 ]; then 152 tst_resm TBROK "There is no IPv4 connectivity." 153 exit 1 154 fi 155 156 # Make sure the sysctl values 157 sysctl -w net.ipv4.igmp_max_memberships=20 >/dev/null 158 if [ $? -ne 0 ]; then 159 tst_resm TBROK "Failed to set the sysctl value regarding multicast" 160 exit $TST_TOTAL 161 fi 162 163 sysctl -w net.ipv4.igmp_max_msf=10 >/dev/null 164 sysctl -w net.ipv4.conf.${lhost_ifname}.force_igmp_version=0 >/dev/null 165 sysctl -w net.ipv4.conf.all.force_igmp_version=0 >/dev/null 166} 167 168 169#----------------------------------------------------------------------- 170# 171# Main 172# 173# 174 175# Test description 176tst_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]" 177 178do_setup 179 180# Find the available consecutive ports 181mcast_port=`find_portbundle udp 1025 1` 182if [ $? -ne 0 ]; then 183 tst_resm TBROK "No port is available." 184 exit 1 185fi 186 187# Run a receiver 188ns-mcast_receiver -f 4 -I $lhost_ifname -m $MCAST_ADDR -p $mcast_port -b 189if [ $? -ne 0 ]; then 190 tst_resm TBROK "Failed to start multicast receiver" 191 exit 1 192fi 193 194# Run a sender 195ret=`$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 $?'` 196if [ $ret -ne 0 ]; then 197 tst_resm TBROK "Failed to start multicast sender" 198 exit 1 199fi 200 201#----------------------------------------------------------------------- 202# 203# Clean up 204# 205 206tst_resm TPASS "Test is finished successfully." 207exit 0 208