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 # mcast6-grpope02 26 # 27 # Description: 28 # Verify that the kernel is not crashed when joining lots of IPv6 multicast 29 # groups on lots of sockets 30 # 31 # Setup: 32 # See ltp-yyyymmdd/testcases/network/stress/README 33 # 34 # Author: 35 # Mitsuru Chinen <mitch (at] jp.ibm.com> 36 # 37 # History: 38 # May 6 2006 - Created (Mitsuru Chinen) 39 # 40 #----------------------------------------------------------------------- 41 # Uncomment line below for debug output. 42 #trace_logic=${trace_logic:-"set -x"} 43 $trace_logic 44 45 # The test case ID, the test case count and the total number of test case 46 TCID=mcast6-grpope02 47 TST_TOTAL=1 48 TST_COUNT=1 49 export TCID 50 export TST_COUNT 51 export TST_TOTAL 52 53 # Make sure the value of LTPROOT 54 LTPROOT=${LTPROOT:-`(cd ../../../../.. ; pwd)`} 55 export LTPROOT 56 57 # Check the environmanet variable 58 . check_envval || exit $TST_TOTAL 59 60 # Number of the group 61 MCASTNUM_HEAVY=${MCASTNUM_HEAVY:-40000} 62 63 # The number of the test link where tests run 64 LINK_NUM=${LINK_NUM:-0} 65 66 # Network portion of the IPv6 address 67 NETWORK_PART="fec0:1:1:1" 68 69 # Host portion of the IPv6 address 70 LHOST_HOST_PART=":2" # local host 71 RHOST_HOST_PART=":1" # remote host 72 73 # Prefix of the Multicast Address 74 MCAST_ADDR_PREFIX=ff0e::1111 75 76 77 #----------------------------------------------------------------------- 78 # 79 # Function: do_cleanup 80 # 81 # Description: 82 # Recover the system configuration 83 # 84 #----------------------------------------------------------------------- 85 do_cleanup() 86 { 87 # Make sure to kill the multicast receiver and sender 88 killall -SIGHUP ns-mcast_join >/dev/null 2>&1 89 $LTP_RSH $RHOST killall -SIGHUP ns-icmpv6_sender >/dev/null 2>&1 90 91 # Clean up each interface 92 initialize_if lhost ${LINK_NUM} 93 initialize_if rhost ${LINK_NUM} 94 } 95 96 97 #----------------------------------------------------------------------- 98 # 99 # Function: do_setup 100 # 101 # Description: 102 # Configure the ssystem for the test 103 # 104 #----------------------------------------------------------------------- 105 do_setup() 106 { 107 # Initialize the system configuration 108 do_cleanup 109 110 # Call do_cleanup function before exit 111 trap do_cleanup 0 112 113 # Increase the maximum number of open file descriptors 114 fd_num=`ulimit -n` 115 if [ $fd_num -lt $MCASTNUM_HEAVY ]; then 116 ulimit -n $MCASTNUM_HEAVY 117 if [ $? -ne 0 ]; then 118 tst_resm TBROK "$MCASTNUM_HEAVY is too many for the file descriptor" 119 fi 120 fi 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 IPv6 addresses to the interfaces 136 add_ipv6addr 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 add_ipv6addr rhost $LINK_NUM $NETWORK_PART $RHOST_HOST_PART 143 if [ $? -ne 0 ]; then 144 tst_resm TBROK "Failed to add any IP address at the remote host" 145 exit 1 146 fi 147 148 # IPv6 address of the local/remote host 149 lhost_addr="${NETWORK_PART}:${LHOST_HOST_PART}" 150 rhost_addr="${NETWORK_PART}:${RHOST_HOST_PART}" 151 rhost_linklocal="fe80:${RHOST_HOST_PART}" 152 153 # Make sure the connectvity 154 check_icmpv6_connectivity $lhost_ifname $rhost_addr 155 if [ $? -ne 0 ]; then 156 tst_resm TBROK "There is no IPv6 connectivity." 157 exit 1 158 fi 159 160 # Make sure the sysctl values 161 sysctl -w net.ipv6.conf.all.force_mld_version=0 >/dev/null 162 if [ $? -ne 0 ]; then 163 tst_resm TBROK "Failed to set the sysctl value regarding multicast" 164 exit $TST_TOTAL 165 fi 166 167 sysctl -w net.ipv6.conf.${lhost_ifname}.force_mld_version=0 >/dev/null 168 sysctl -w net.ipv6.mld_max_msf=10 >/dev/null 169 } 170 171 172 #----------------------------------------------------------------------- 173 # 174 # Main 175 # 176 # 177 178 # Test description 179 tst_resm TINFO "Verify that the kernel is not crashed when joining $MCASTNUM_HEAVY IPv6 multicast groups on separate sockets" 180 181 do_setup 182 183 # Run a multicast join tool 184 tmpfile=$TMPDIR/ns-mcast_join.$$ 185 ns-mcast_join -m -f 6 -I $lhost_ifname -n $MCASTNUM_HEAVY -p $MCAST_ADDR_PREFIX > $tmpfile 186 if [ $? -ne 0 ]; then 187 tst_resm TBROK "Failed to start multicast joining tool Please check the environment" 188 rm -f $tmpfile 189 exit 1 190 fi 191 msg=`cat $tmpfile | grep groups` 192 tst_resm TINFO "Joined $msg" 193 rm -f $tmpfile 194 195 # Send MLD General Query from the remote host 196 ret=`$LTP_RSH $RHOST ${LTPROOT}/testcases/bin/ns-icmpv6_sender -I $rhost_ifname -S $rhost_linklocal -m -o' ; echo $?'` 197 if [ $ret -ne 0 ]; then 198 tst_resm TBROK "Failed to start MLD querier" 199 exit 1 200 fi 201 202 #----------------------------------------------------------------------- 203 # 204 # Clean up 205 # 206 207 killall -SIGHUP ns-mcast_join >/dev/null 2>&1 208 while true ; do 209 ps auxw | grep -v grep | grep ns-mcast_join > /dev/null 210 if [ $? -ne 0 ] ; then 211 break 212 fi 213 done 214 215 tst_resm TPASS "Test is finished successfully." 216 217 exit 0 218
