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 # route4-change-gw 26 # 27 # Description: 28 # Verify the kernel is not crashed when the gateway of an IPv4 route is 29 # changed frequently 30 # test01 - by route command 31 # test02 - by ip command 32 # 33 # Setup: 34 # See ltp-yyyymmdd/testcases/network/stress/README 35 # 36 # Author: 37 # Mitsuru Chinen <mitch (at] jp.ibm.com> 38 # 39 # History: 40 # Mar 16 2006 - Created (Mitsuru Chinen) 41 # 42 #----------------------------------------------------------------------- 43 # Uncomment line below for debug output. 44 #trace_logic=${trace_logic:-"set -x"} 45 $trace_logic 46 47 # Make sure the value of LTPROOT 48 LTPROOT=${LTPROOT:-`(cd ../../../../ ; pwd)`} 49 export LTPROOT 50 51 # Total number of the test case 52 TST_TOTAL=2 53 export TST_TOTAL 54 55 # Default of the test case ID and the test case count 56 TCID=route4-change-gw 57 TST_COUNT=0 58 export TCID 59 export TST_COUNT 60 61 # Check the environmanet variable 62 . check_envval || exit $TST_TOTAL 63 64 # The number of times where route is changed 65 NS_TIMES=${NS_TIMES:-10000} 66 67 # The number of the test link where tests run 68 LINK_NUM=${LINK_NUM:-0} 69 70 # Network portion of the IPv4 address 71 IPV4_NETWORK=${IPV4_NETWORK:-"10.0.0"} 72 73 # Netmask of for the tested network 74 IPV4_NETMASK_NUM=24 75 76 # Broadcast address of the tested network 77 IPV4_BROADCAST=${IPV4_NETWORK}.255 78 79 # Host portion of the IPv4 address 80 LHOST_IPV4_HOST=${LHOST_IPV4_HOST:-"1"} # src 81 RHOST_IPV4_HOST_TOP="10" # gateway 82 RHOST_IPV4_HOST_LAST=19 83 84 # The destination network 85 DST_NETWORK="10.10.0" # destination network would be 10.10.0.0/24 86 DST_HOST="5" 87 DST_PORT="7" 88 89 90 #----------------------------------------------------------------------- 91 # 92 # NAME: 93 # do_setup 94 # 95 # DESCRIPTION: 96 # Make a IPv4 connectivity 97 # 98 # SET VALUES: 99 # rhost_ipv4addr - IPv4 Address of the remote host 100 # lhost_ifname - Interface name of the local host 101 # rhost_ifname - Interface name of the remote host 102 # 103 #----------------------------------------------------------------------- 104 do_setup() 105 { 106 TCID=route4-change-gw 107 TST_COUNT=0 108 109 # Get the Interface name of local host 110 lhost_ifname=`get_ifname lhost ${LINK_NUM}` 111 if [ $? -ne 0 ]; then 112 tst_resm TBROK "Failed to get the interface name at the local host" 113 exit $TST_TOTAL 114 fi 115 116 # Get the Interface name of remote host 117 rhost_ifname=`get_ifname rhost ${LINK_NUM}` 118 if [ $? -ne 0 ]; then 119 tst_resm TBROK "Failed to get the interface name at the remote host" 120 exit $TST_TOTAL 121 fi 122 123 # Initialize the interfaces of the remote host 124 initialize_if rhost ${LINK_NUM} 125 126 # Set IPv4 address to the interface of the remote host 127 rhost_part=$RHOST_IPV4_HOST_TOP 128 while [ $rhost_part -le $RHOST_IPV4_HOST_LAST ]; do 129 ret=`$LTP_RSH $RHOST '( PATH=/sbin:/usr/sbin:$PATH ; ip addr add '${IPV4_NETWORK}.${rhost_part}/${IPV4_NETMASK_NUM}' broadcast '${IPV4_NETWORK}'.255 dev '$rhost_ifname' ) > /dev/null ; echo $?'` 130 if [ $ret -ne 0 ]; then 131 tst_resm TBROK "Failed to assign IP address to the interface at the remote host" 132 exit $TST_TOTAL 133 fi 134 rhost_part=`expr $rhost_part + 1` 135 done 136 } 137 138 139 #----------------------------------------------------------------------- 140 # 141 # NAME: 142 # do_cleanup 143 # 144 # DESCRIPTION: 145 # Recover the tested interfaces 146 # 147 #----------------------------------------------------------------------- 148 do_cleanup() 149 { 150 killall -SIGHUP ns-udpsender >/dev/null 2>&1 151 152 # Initialize the interfaces 153 initialize_if lhost ${LINK_NUM} 154 initialize_if rhost ${LINK_NUM} 155 } 156 157 158 #----------------------------------------------------------------------- 159 # 160 # FUNCTION: 161 # test_body 162 # 163 # DESCRIPTION: 164 # main code of the test 165 # 166 # Arguments: 167 # $1: define the test type 168 # 1 - route command case 169 # 2 - ip command case 170 # 171 #----------------------------------------------------------------------- 172 test_body() 173 { 174 test_type=$1 175 176 TCID=route4-change-gw0${test_type} 177 TST_COUNT=$test_type 178 179 case $test_type in 180 1) 181 test_command="route" 182 ;; 183 2) 184 test_command="ip" 185 ;; 186 *) 187 tst_resm TBROK "unspecified case" 188 return 1 189 ;; 190 esac 191 192 tst_resm TINFO "Verify the kernel is not crashed when the gateway of an IPv4 route is changed frequently by $test_command command in $NS_TIMES times" 193 194 # Initialize the interface of the local host 195 initialize_if lhost ${LINK_NUM} 196 197 # Assign IPv4 address to the interface of the local host 198 set_ipv4addr lhost ${LINK_NUM} ${IPV4_NETWORK} ${LHOST_IPV4_HOST} 199 if [ $? -ne 0 ]; then 200 tst_resm TBROK "Failed to assign an IPv4 address at the local host" 201 return 1 202 fi 203 204 # Check the connectivity to the gateway 205 rhost_part=$RHOST_IPV4_HOST_TOP 206 check_icmpv4_connectivity $lhost_ifname ${IPV4_NETWORK}.${rhost_part} 207 if [ $? -ne 0 ]; then 208 tst_resm TBROK "Test Link $LINK_NUM is somthing wrong." 209 return 1 210 fi 211 212 # Set the variables regarding the destination host 213 dst_addr=${DST_NETWORK}.${DST_HOST} 214 dst_network=${DST_NETWORK}.0 215 216 # Set the first route 217 case $test_type in 218 1) 219 route add -net $dst_network netmask 255.255.255.0 gw ${IPV4_NETWORK}.${rhost_part} dev $lhost_ifname 220 ;; 221 2) 222 ip route add ${dst_network}/24 via ${IPV4_NETWORK}.${rhost_part} dev $lhost_ifname 223 ;; 224 esac 225 226 # Load the route with UDP traffic 227 ns-udpsender -f 4 -D $dst_addr -p $DST_PORT -b -s 1472 228 if [ $? -ne 0 ]; then 229 tst_resm TFAIL "Failed to run a UDP datagram sender" 230 return 1 231 fi 232 233 # Loop for changing the route 234 cnt=0 235 while [ $cnt -lt $NS_TIMES ]; do 236 pre_rhost_part=$rhost_part 237 rhost_part=`expr $rhost_part + 1` 238 if [ $rhost_part -gt $RHOST_IPV4_HOST_LAST ]; then 239 rhost_part=$RHOST_IPV4_HOST_TOP 240 fi 241 242 case $test_type in 243 1) 244 route add -net $dst_network netmask 255.255.255.0 gw ${IPV4_NETWORK}.${rhost_part} dev $lhost_ifname 245 route del -net $dst_network netmask 255.255.255.0 gw ${IPV4_NETWORK}.${pre_rhost_part} dev $lhost_ifname 246 ;; 247 2) 248 ip route change ${dst_network}/24 via ${IPV4_NETWORK}.${rhost_part} dev $lhost_ifname 249 ;; 250 esac 251 if [ $? -ne 0 ]; then 252 tst_resm TFAIL "Failed to change the gateway to ${IPV4_NETWORK}.${rhost_part}" 253 return 1 254 fi 255 256 # Rerun if udp datagram sender is dead 257 ps auxw | fgrep -v grep | grep ns-udpsender > /dev/null 258 if [ $? -ne 0 ]; then 259 ns-udpsender -f 4 -D $dst_addr -p $DST_PORT -b -s 1472 260 if [ $? -ne 0 ]; then 261 tst_resm TFAIL "Failed to run a UDP datagram sender" 262 return 1 263 fi 264 fi 265 266 cnt=`expr $cnt + 1` 267 done 268 269 # Kill the udp datagram sender 270 killall -SIGHUP ns-udpsender >/dev/null 2>&1 271 272 tst_resm TPASS "Test is finished correctly." 273 return 0 274 } 275 276 277 #----------------------------------------------------------------------- 278 # 279 # Main 280 # 281 # Exit Value: 282 # The number of the failure 283 # 284 #----------------------------------------------------------------------- 285 286 RC=0 287 do_setup 288 test_body 1 || RC=`expr $RC + 1` # Case of route command 289 test_body 2 || RC=`expr $RC + 1` # Case of ip command 290 do_cleanup 291 292 exit $RC 293
