1 #!/bin/sh 2 3 ################################################################################ 4 ## ## 5 ## Copyright (c) International Business Machines Corp., 2005 ## 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 # tcp4-uni-basic01 26 # 27 # Description: 28 # Verify that the kernel is not crashed with a connection to with 29 # the following condition: 30 # - The version of IP is IPv4 31 # - Network is not delayed 32 # - IPsec is not used 33 # - Disable window scaling 34 # - Enable Nagle algorithm 35 # - Enable TCP Duplicate SACK support 36 # - Enable SACK Support 37 # - No packet are lost 38 # - No packet are duplicated 39 # - Disable TSO if it is avalable 40 # 41 # *) This script may be read by the other test case 42 # 43 # Setup: 44 # See ltp-yyyymmdd/testcases/network/stress/README 45 # 46 # Author: 47 # Mitsuru Chinen <mitch (at] jp.ibm.com> 48 # 49 # History: 50 # Oct 19 2005 - Created (Mitsuru Chinen) 51 # 52 #----------------------------------------------------------------------- 53 # Uncomment line below for debug output. 54 #trace_logic=${trace_logic:-"set -x"} 55 $trace_logic 56 57 # The test case ID, the test case count and the total number of test case 58 TCID=${TCID:-tcp4-uni-basic01} 59 TST_TOTAL=1 60 TST_COUNT=1 61 export TCID 62 export TST_COUNT 63 export TST_TOTAL 64 65 66 67 # Test description 68 NON_BASIC=${NON_BASIC:-false} 69 $NON_BASIC || tst_resm TINFO "Verify that the kernel is not crashed by a TCP connection" 70 71 # Make sure the value of LTPROOT 72 LTPROOT=${LTPROOT:-`(cd ../../../../.. ; pwd)`} 73 export LTPROOT 74 75 # Check the environmanet variable 76 . check_envval || exit $TST_TOTAL 77 78 # Dulation of the test [sec] 79 NS_DURATION=${NS_DURATION:-3600} # 1 hour 80 81 # The number of the test link where tests run 82 LINK_NUM=${LINK_NUM:-0} 83 84 # The version of IP 85 IP_VER=${IP_VER:-4} 86 87 # true, if ipsec is used 88 DO_IPSEC=${DO_IPSEC:-false} 89 90 # The value of SPI 91 SPI=${SPI:-1000} 92 93 # IPsec Protocol ( ah / esp / ipcomp ) 94 IPSEC_PROTO=${IPSEC_PROTO:-ah} 95 96 # IPsec Mode ( transport / tunnel ) 97 IPSEC_MODE=${IPSEC_MODE:-transport} 98 99 # true, if network is delayed 100 DO_NET_DELAY=${DO_NET_DELAY:-false} 101 102 # Amount of network delay [ms] 103 NET_DELAY=${NET_DELAY:-600} 104 105 # The deflection of network delay [ms] 106 NET_DELAY_DEFL=${NET_DELAY_DEFL:-200} 107 108 # true, if some packets are lost 109 DO_PACKET_LOSS=${DO_PACKET_LOSS:-false} 110 111 # Rate of packet loss [%] 112 PACKET_LOSS_RATE=${PACKET_LOSS_RATE:-8} 113 114 # true, if some packets are duplicated 115 DO_PACKET_DUP=${DO_PACKET_DUP:-false} 116 117 # Rate of packet dupulication [%] 118 PACKET_DUP_RATE=${PACKET_DUP_RATE:-1} 119 120 # true, if test is for small sending (Namely, disable NAGLE algorithm) 121 DO_SMALL_SEND=${DO_SMALL_SEND:-false} 122 123 # true, if test is for window scaling 124 DO_WINDOW_SCALING=${DO_WINDOW_SCALING:-false} 125 126 # true, if test is for DSACK 127 DO_DSACK=${DO_DSACK:-true} 128 129 # true, if test is for SACK 130 DO_SACK=${DO_SACK:-true} 131 132 # true, if test is for TSO 133 DO_TSO=${DO_TSO:-false} 134 135 #----------------------------------------------------------------------- 136 # 137 # Function: do_cleanup 138 # 139 # Description: 140 # Recover the system configuration 141 # 142 #----------------------------------------------------------------------- 143 do_cleanup() 144 { 145 # Kill the tcp traffic server 146 killall_tcp_traffic 147 148 # Enable window scaling 149 sysctl -w net.ipv4.tcp_window_scaling=1 >/dev/null 2>&1 150 151 # Enable TCP Duplicate SACK support 152 sysctl -w net.ipv4.tcp_dsack=1 >/dev/null 2>&1 153 154 # Enable SACK support 155 sysctl -w net.ipv4.tcp_sack=1 >/dev/null 2>&1 156 157 # Restore the tcp segmentation offload setting 158 if [ x${tso_orig} != x ]; then 159 ethtool -K $lhost_ifname tso $tso_orig 160 fi 161 162 # Unset SAD/SPD 163 output_ipsec_conf flush | setkey -c >/dev/null 2>&1 164 $LTP_RSH $RHOST ${LTPROOT}/'testcases/bin/output_ipsec_conf flush | PATH=/sbin:/usr/sbin:$PATH setkey -c' >/dev/null 2>&1 165 166 # Disable network emulator 167 if [ x$rhost_ifname = x ]; then 168 rhost_ifname=`get_ifname rhost $LINK_NUM` 169 fi 170 $LTP_RSH $RHOST "PATH=/sbin:/usr/sbin:$PATH tc qdisc del dev $rhost_ifname root netem" >/dev/null 2>&1 171 172 # Clean up each interface 173 initialize_if lhost ${LINK_NUM} || exit 1 174 initialize_if rhost ${LINK_NUM} || exit 1 175 } 176 177 178 #----------------------------------------------------------------------- 179 # 180 # Function: do_setup 181 # 182 # Description: 183 # Setup the system for testing 184 # 185 #----------------------------------------------------------------------- 186 do_setup() 187 { 188 # Output the informaion 189 tst_resm TINFO "- Test duration is $NS_DURATION [sec]" 190 tst_resm TINFO "- Version of IP is IPv${IP_VER}" 191 192 # Addtional server option 193 server_opt="" 194 195 # Addtional client option 196 client_opt="" 197 198 # Original TSO parameter 199 tso_orig="" 200 201 # Check the remote host has netem functionality 202 if $DO_NET_DELAY || $DO_PACKET_LOSS || $DO_PACKET_DUP ; then 203 message=`check_netem` 204 if [ $? -ne 0 ]; then 205 tst_resm TBROK "$message" 206 exit 1 207 fi 208 fi 209 210 $DO_NET_DELAY && tst_resm TINFO "- Network delay is ${NET_DELAY}ms +/- ${NET_DELAY_DEFL}ms" 211 212 $DO_PACKET_LOSS && tst_resm TINFO "- Packet loss rate is ${PACKET_LOSS_RATE}%%" 213 214 $DO_PACKET_DUP && tst_resm TINFO "- Packet duplication rate is ${PACKET_DUP_RATE}%%" 215 216 # Check the setkey command is available 217 if $DO_IPSEC ; then 218 message=`check_setkey` 219 if [ $? -ne 0 ]; then 220 tst_resm TBROK "$message" 221 exit 1 222 fi 223 224 case $IPSEC_PROTO in 225 ah) 226 tst_resm TINFO "- IPsec [ AH / $IPSEC_MODE ]" 227 ;; 228 esp) 229 tst_resm TINFO "- IPsec [ ESP / $IPSEC_MODE ]" 230 ;; 231 ipcomp) 232 tst_resm TINFO "- IPcomp [ $IPSEC_MODE ]" 233 ;; 234 esac 235 fi 236 237 # name of interface of the local/remote host 238 lhost_ifname=`get_ifname lhost $LINK_NUM` 239 if [ $? -ne 0 ]; then 240 tst_resm TBROK "Failed to get the interface name at the local host" 241 exit $TST_TOTAL 242 fi 243 rhost_ifname=`get_ifname rhost $LINK_NUM` 244 if [ $? -ne 0 ]; then 245 tst_resm TBROK "Failed to get the interface name at the remote host" 246 exit $TST_TOTAL 247 fi 248 249 # Initialize the system configuration 250 do_cleanup 251 252 # Call do_cleanup function before exit 253 trap do_cleanup 0 254 255 # Add option for small sending test 256 if $DO_SMALL_SEND ; then 257 server_opt="-s" 258 fi 259 260 # Configure window scaling parameter 261 if $DO_WINDOW_SCALING ; then 262 server_opt="-w" 263 client_opt="-w" 264 sysctl -w net.ipv4.tcp_window_scaling=1 >/dev/null 265 if [ $? -ne 0 ]; then 266 tst_resm TBROK "Failed to enable window scaling" 267 exit 1 268 fi 269 else 270 sysctl -w net.ipv4.tcp_window_scaling=0 >/dev/null 2>&1 271 fi 272 273 # Configure DSACK parameter 274 if $DO_DSACK ; then 275 sysctl -w net.ipv4.tcp_dsack=1 >/dev/null 276 if [ $? -ne 0 ]; then 277 tst_resm TBROK "Failed to enable Duplicate SACK" 278 exit 1 279 fi 280 else 281 sysctl -w net.ipv4.tcp_dsack=0 >/dev/null 2>&1 282 fi 283 284 # Configure SACK parameter 285 if $DO_SACK ; then 286 sysctl -w net.ipv4.tcp_sack=1 >/dev/null 287 if [ $? -ne 0 ]; then 288 tst_resm TBROK "Failed to enable SACK" 289 exit 1 290 fi 291 else 292 sysctl -w net.ipv4.tcp_sack=0 >/dev/null 2>&1 293 fi 294 295 # Store the current TSO parameter, then configure it 296 offload_info=`mktemp -p $TMPDIR` 297 ethtool -k $lhost_ifname > $offload_info 2>/dev/null 298 fgrep "tcp segmentation offload" $offload_info >/dev/null 2>&1 299 if [ $? -ne 0 ]; then 300 if $DO_TSO ; then 301 tst_resm TCONF "The device at $lhost_ifname does not support TSO." 302 rm -f $offload_info 303 exit 1 304 fi 305 tso_orig=`fgrep "tcp segmentation offload" $offload_info | sed -e 's/^.*: //'` 306 if $DO_TSO ; then 307 server_opt="-w" 308 client_opt="-w" 309 ethtool -K $lhost_ifname tso on 310 else 311 ethtool -K $lhost_ifname tso off 312 fi 313 fi 314 rm -f $offload_info 315 316 # Configure the network interface 317 case $IP_VER in 318 4) 319 # Network portion of the IPv4 address 320 network_part=${IPV4_NETWORK:-"10.0.0"} 321 322 # Netmask of the IPv4 network 323 network_mask=24 324 325 # Host portion of the IPv4 address 326 lhost_host_part=${LHOST_IPV4_HOST:-"2"} # local host 327 rhost_host_part=${RHOST_IPV4_HOST:-"1"} # remote host 328 329 # Set IPv4 addresses to the interfaces 330 set_ipv4addr lhost $LINK_NUM $network_part $lhost_host_part 331 if [ $? -ne 0 ]; then 332 tst_resm TBROK "Failed to add any IP address at the local host" 333 exit 1 334 fi 335 336 set_ipv4addr rhost $LINK_NUM $network_part $rhost_host_part 337 if [ $? -ne 0 ]; then 338 tst_resm TBROK "Failed to add any IP address at the remote host" 339 exit 1 340 fi 341 342 # IPv4 address of the local/remote host 343 lhost_addr="${network_part}.${lhost_host_part}" 344 rhost_addr="${network_part}.${rhost_host_part}" 345 ;; 346 347 6) 348 # Network portion of the IPv6 address 349 network_part="fd00:1:1:1" 350 351 # Netmask of the IPv6 network 352 network_mask=64 353 354 # Host portion of the IPv6 address 355 lhost_host_part=":2" # local host 356 rhost_host_part=":1" # remote host 357 358 # Set IPv6 addresses to the interfaces 359 add_ipv6addr lhost $LINK_NUM $network_part $lhost_host_part 360 if [ $? -ne 0 ]; then 361 tst_resm TBROK "Failed to add any IP address at the local host" 362 exit 1 363 fi 364 365 add_ipv6addr rhost $LINK_NUM $network_part $rhost_host_part 366 if [ $? -ne 0 ]; then 367 tst_resm TBROK "Failed to add any IP address at the remote host" 368 exit 1 369 fi 370 371 # IPv6 address of the local/remote host 372 lhost_addr="${network_part}:${lhost_host_part}" 373 rhost_addr="${network_part}:${rhost_host_part}" 374 ;; 375 376 *) 377 tst_resm TBROK "Unknown IP version" 378 ;; 379 esac 380 381 netem_param= 382 383 # Make the network delay 384 if $DO_NET_DELAY ; then 385 netem_param="delay ${NET_DELAY}ms ${NET_DELAY_DEFL}ms distribution normal" 386 ret=`$LTP_RSH $RHOST 'PATH=/sbin:/usr/sbin:$PATH tc' qdisc add dev $rhost_ifname root netem $netem_param' ; echo $?'` 387 if [ $ret -ne 0 ]; then 388 tst_resm TBROK "Failed to make the delayed network" 389 exit 1 390 fi 391 fi 392 393 # Make some packets lost 394 if $DO_PACKET_LOSS ; then 395 tc_cmd="add" 396 if [ x"$netem_param" != x ]; then 397 tc_cmd="change" 398 fi 399 netem_param="loss ${PACKET_LOSS_RATE}% $netem_param" 400 ret=`$LTP_RSH $RHOST 'PATH=/sbin:/usr/sbin:$PATH tc' qdisc $tc_cmd dev $rhost_ifname root netem $netem_param' ; echo $?'` 401 if [ $ret -ne 0 ]; then 402 tst_resm TBROK "Failed to use netem functionality" 403 exit 1 404 fi 405 fi 406 407 # Make some packets duplicated 408 if $DO_PACKET_DUP ; then 409 tc_cmd="add" 410 if [ x"$netem_param" != x ]; then 411 tc_cmd="change" 412 fi 413 netem_param="duplicate ${PACKET_DUP_RATE}% $netem_param" 414 ret=`$LTP_RSH $RHOST 'PATH=/sbin:/usr/sbin:$PATH tc' qdisc $tc_cmd dev $rhost_ifname root netem $netem_param' ; echo $?'` 415 if [ $ret -ne 0 ]; then 416 tst_resm TBROK "Failed to use netem functionality" 417 exit 1 418 fi 419 fi 420 421 # Configure SAD/SPD 422 if $DO_IPSEC ; then 423 # Set SAD/SPD according to the variables 424 ipsec_log=`mktemp -p $TMPDIR` 425 output_ipsec_conf src \ 426 $IPSEC_PROTO $IPSEC_MODE $SPI $lhost_addr $rhost_addr \ 427 | setkey -c 2>&1 | tee $ipsec_log 428 if [ $? -ne 0 -o -s $ipsec_log ]; then 429 tst_resm TBROK "Failed to configure SAD/SPD on the local host." 430 rm -f $ipsec_log 431 exit 1 432 fi 433 434 $LTP_RSH $RHOST ${LTPROOT}/testcases/bin/output_ipsec_conf dst $IPSEC_PROTO $IPSEC_MODE $SPI $lhost_addr $rhost_addr' | PATH=/sbin:/usr/sbin:$PATH setkey -c' 2>&1 | tee $ipsec_log 435 if [ $? -ne 0 -o -s $ipsec_log ]; then 436 tst_resm TBROK "Failed to configure SAD/SPD on the remote host." 437 rm -f $ipsec_log 438 exit 1 439 fi 440 fi 441 442 # Make sure the connectvity 443 case $IP_VER in 444 4) 445 ret=`$LTP_RSH $RHOST ${LTPROOT}/testcases/bin/check_icmpv4_connectivity $rhost_ifname $lhost_addr' ; echo $?'` 446 if [ $ret -ne 0 ]; then 447 tst_resm TBROK "There is no IPv4 connectivity." 448 exit 1 449 fi 450 ;; 451 452 6) 453 ret=`$LTP_RSH $RHOST ${LTPROOT}/testcases/bin/check_icmpv6_connectivity $rhost_ifname $lhost_addr' ; echo $?'` 454 if [ $ret -ne 0 ]; then 455 tst_resm TBROK "There is no IPv6 connectivity." 456 exit 1 457 fi 458 ;; 459 esac 460 461 } 462 463 #----------------------------------------------------------------------- 464 # 465 # Main 466 # 467 # 468 469 do_setup 470 471 # Find the available consecutive ports 472 server_port=`find_portbundle tcp 1025 1` 473 if [ $? -ne 0 ]; then 474 tst_resm TBROK "No port is available." 475 exit 1 476 fi 477 478 # Run a tcp traffic server 479 info_file=`mktemp -p $TMPDIR` 480 ns-tcpserver -b -f $IP_VER -p $server_port -o $info_file $server_opt 481 if [ $? -ne 0 ]; then 482 tst_resm TFAIL "Failed to run a tcp traffic server." 483 rm -f $info_file 484 exit 1 485 fi 486 487 while true ; do 488 if [ -s $info_file ]; then 489 break 490 fi 491 done 492 493 server_pid=`grep PID: $info_file | cut -f 2 -d ' '` 494 rm -f $info_file 495 496 # Run a tcp taffic client 497 ret=`$LTP_RSH $RHOST ${LTPROOT}/testcases/bin/ns-tcpclient -b -f $IP_VER -S $lhost_addr -p $server_port $client_opt' ; echo $?'` 498 if [ $ret -ne 0 ]; then 499 tst_resm TFAIL "Failed to run a tcp traffic client" 500 exit 1 501 fi 502 503 start_epoc=`date +%s` 504 while true ; do 505 current_epoc=`date +%s` 506 elapse_epoc=`expr $current_epoc - $start_epoc` 507 508 if [ $elapse_epoc -ge $NS_DURATION ]; then 509 killall -SIGHUP ns-tcpserver 510 break 511 fi 512 513 # Watch the TCP traffic server 514 ps auxw | fgrep ns-tcpserver | fgrep -l $server_pid >/dev/null 2>&1 515 if [ $? -ne 0 ]; then 516 tst_resm TFAIL "tcp traffic server is dead in $elapse_epoc [sec]" 517 exit 1 518 fi 519 sleep 1 520 done 521 522 523 #----------------------------------------------------------------------- 524 # 525 # Clean up 526 # 527 528 tst_resm TPASS "Test is finished successfully." 529 exit 0 530
