crypto/openssh/regress/test-exec.sh

   1 #       $OpenBSD: test-exec.sh,v 1.59 2017/02/07 23:03:11 dtucker Exp $
   2 #       Placed in the Public Domain.
   3
   4 #SUDO=sudo
   5
   6 # Unbreak GNU head(1)
   7 _POSIX2_VERSION=199209
   8 export _POSIX2_VERSION
   9
  10 case `uname -s 2>/dev/null` in
  11 OSF1*)
  12         BIN_SH=xpg4
  13         export BIN_SH
  14         ;;
  15 CYGWIN_NT-5.0)
  16         os=cygwin
  17         TEST_SSH_IPV6=no
  18         ;;
  19 CYGWIN*)
  20         os=cygwin
  21         ;;
  22 esac
  23
  24 if [ ! -z "$TEST_SSH_PORT" ]; then
  25         PORT="$TEST_SSH_PORT"
  26 else
  27         PORT=4242
  28 fi
  29
  30 if [ -x /usr/ucb/whoami ]; then
  31         USER=`/usr/ucb/whoami`
  32 elif whoami >/dev/null 2>&1; then
  33         USER=`whoami`
  34 elif logname >/dev/null 2>&1; then
  35         USER=`logname`
  36 else
  37         USER=`id -un`
  38 fi
  39
  40 OBJ=$1
  41 if [ "x$OBJ" = "x" ]; then
  42         echo '$OBJ not defined'
  43         exit 2
  44 fi
  45 if [ ! -d $OBJ ]; then
  46         echo "not a directory: $OBJ"
  47         exit 2
  48 fi
  49 SCRIPT=$2
  50 if [ "x$SCRIPT" = "x" ]; then
  51         echo '$SCRIPT not defined'
  52         exit 2
  53 fi
  54 if [ ! -f $SCRIPT ]; then
  55         echo "not a file: $SCRIPT"
  56         exit 2
  57 fi
  58 if $TEST_SHELL -n $SCRIPT; then
  59         true
  60 else
  61         echo "syntax error in $SCRIPT"
  62         exit 2
  63 fi
  64 unset SSH_AUTH_SOCK
  65
  66 SRC=`dirname ${SCRIPT}`
  67
  68 # defaults
  69 SSH=ssh
  70 SSHD=sshd
  71 SSHAGENT=ssh-agent
  72 SSHADD=ssh-add
  73 SSHKEYGEN=ssh-keygen
  74 SSHKEYSCAN=ssh-keyscan
  75 SFTP=sftp
  76 SFTPSERVER=/usr/libexec/openssh/sftp-server
  77 SCP=scp
  78
  79 # Interop testing
  80 PLINK=plink
  81 PUTTYGEN=puttygen
  82 CONCH=conch
  83
  84 if [ "x$TEST_SSH_SSH" != "x" ]; then
  85         SSH="${TEST_SSH_SSH}"
  86 fi
  87 if [ "x$TEST_SSH_SSHD" != "x" ]; then
  88         SSHD="${TEST_SSH_SSHD}"
  89 fi
  90 if [ "x$TEST_SSH_SSHAGENT" != "x" ]; then
  91         SSHAGENT="${TEST_SSH_SSHAGENT}"
  92 fi
  93 if [ "x$TEST_SSH_SSHADD" != "x" ]; then
  94         SSHADD="${TEST_SSH_SSHADD}"
  95 fi
  96 if [ "x$TEST_SSH_SSHKEYGEN" != "x" ]; then
  97         SSHKEYGEN="${TEST_SSH_SSHKEYGEN}"
  98 fi
  99 if [ "x$TEST_SSH_SSHKEYSCAN" != "x" ]; then
 100         SSHKEYSCAN="${TEST_SSH_SSHKEYSCAN}"
 101 fi
 102 if [ "x$TEST_SSH_SFTP" != "x" ]; then
 103         SFTP="${TEST_SSH_SFTP}"
 104 fi
 105 if [ "x$TEST_SSH_SFTPSERVER" != "x" ]; then
 106         SFTPSERVER="${TEST_SSH_SFTPSERVER}"
 107 fi
 108 if [ "x$TEST_SSH_SCP" != "x" ]; then
 109         SCP="${TEST_SSH_SCP}"
 110 fi
 111 if [ "x$TEST_SSH_PLINK" != "x" ]; then
 112         # Find real binary, if it exists
 113         case "${TEST_SSH_PLINK}" in
 114         /*) PLINK="${TEST_SSH_PLINK}" ;;
 115         *) PLINK=`which ${TEST_SSH_PLINK} 2>/dev/null` ;;
 116         esac
 117 fi
 118 if [ "x$TEST_SSH_PUTTYGEN" != "x" ]; then
 119         # Find real binary, if it exists
 120         case "${TEST_SSH_PUTTYGEN}" in
 121         /*) PUTTYGEN="${TEST_SSH_PUTTYGEN}" ;;
 122         *) PUTTYGEN=`which ${TEST_SSH_PUTTYGEN} 2>/dev/null` ;;
 123         esac
 124 fi
 125 if [ "x$TEST_SSH_CONCH" != "x" ]; then
 126         # Find real binary, if it exists
 127         case "${TEST_SSH_CONCH}" in
 128         /*) CONCH="${TEST_SSH_CONCH}" ;;
 129         *) CONCH=`which ${TEST_SSH_CONCH} 2>/dev/null` ;;
 130         esac
 131 fi
 132
 133 SSH_PROTOCOLS=2
 134 #SSH_PROTOCOLS=`$SSH -Q protocol-version`
 135 if [ "x$TEST_SSH_PROTOCOLS" != "x" ]; then
 136         SSH_PROTOCOLS="${TEST_SSH_PROTOCOLS}"
 137 fi
 138
 139 # Path to sshd must be absolute for rexec
 140 case "$SSHD" in
 141 /*) ;;
 142 *) SSHD=`which $SSHD` ;;
 143 esac
 144
 145 case "$SSHAGENT" in
 146 /*) ;;
 147 *) SSHAGENT=`which $SSHAGENT` ;;
 148 esac
 149
 150 # Record the actual binaries used.
 151 SSH_BIN=${SSH}
 152 SSHD_BIN=${SSHD}
 153 SSHAGENT_BIN=${SSHAGENT}
 154 SSHADD_BIN=${SSHADD}
 155 SSHKEYGEN_BIN=${SSHKEYGEN}
 156 SSHKEYSCAN_BIN=${SSHKEYSCAN}
 157 SFTP_BIN=${SFTP}
 158 SFTPSERVER_BIN=${SFTPSERVER}
 159 SCP_BIN=${SCP}
 160
 161 if [ "x$USE_VALGRIND" != "x" ]; then
 162         mkdir -p $OBJ/valgrind-out
 163         VG_TEST=`basename $SCRIPT .sh`
 164
 165         # Some tests are difficult to fix.
 166         case "$VG_TEST" in
 167         connect-privsep|reexec)
 168                 VG_SKIP=1 ;;
 169         esac
 170
 171         if [ x"$VG_SKIP" = "x" ]; then
 172                 VG_IGNORE="/bin/*,/sbin/*,/usr/*,/var/*"
 173                 VG_LOG="$OBJ/valgrind-out/${VG_TEST}."
 174                 VG_OPTS="--track-origins=yes --leak-check=full"
 175                 VG_OPTS="$VG_OPTS --trace-children=yes"
 176                 VG_OPTS="$VG_OPTS --trace-children-skip=${VG_IGNORE}"
 177                 VG_PATH="valgrind"
 178                 if [ "x$VALGRIND_PATH" != "x" ]; then
 179                         VG_PATH="$VALGRIND_PATH"
 180                 fi
 181                 VG="$VG_PATH $VG_OPTS"
 182                 SSH="$VG --log-file=${VG_LOG}ssh.%p $SSH"
 183                 SSHD="$VG --log-file=${VG_LOG}sshd.%p $SSHD"
 184                 SSHAGENT="$VG --log-file=${VG_LOG}ssh-agent.%p $SSHAGENT"
 185                 SSHADD="$VG --log-file=${VG_LOG}ssh-add.%p $SSHADD"
 186                 SSHKEYGEN="$VG --log-file=${VG_LOG}ssh-keygen.%p $SSHKEYGEN"
 187                 SSHKEYSCAN="$VG --log-file=${VG_LOG}ssh-keyscan.%p $SSHKEYSCAN"
 188                 SFTP="$VG --log-file=${VG_LOG}sftp.%p ${SFTP}"
 189                 SCP="$VG --log-file=${VG_LOG}scp.%p $SCP"
 190                 cat > $OBJ/valgrind-sftp-server.sh << EOF
 191 #!/bin/sh
 192 exec $VG --log-file=${VG_LOG}sftp-server.%p $SFTPSERVER "\$@"
 193 EOF
 194                 chmod a+rx $OBJ/valgrind-sftp-server.sh
 195                 SFTPSERVER="$OBJ/valgrind-sftp-server.sh"
 196         fi
 197 fi
 198
 199 # Logfiles.
 200 # SSH_LOGFILE should be the debug output of ssh(1) only
 201 # SSHD_LOGFILE should be the debug output of sshd(8) only
 202 # REGRESS_LOGFILE is the output of the test itself stdout and stderr
 203 if [ "x$TEST_SSH_LOGFILE" = "x" ]; then
 204         TEST_SSH_LOGFILE=$OBJ/ssh.log
 205 fi
 206 if [ "x$TEST_SSHD_LOGFILE" = "x" ]; then
 207         TEST_SSHD_LOGFILE=$OBJ/sshd.log
 208 fi
 209 if [ "x$TEST_REGRESS_LOGFILE" = "x" ]; then
 210         TEST_REGRESS_LOGFILE=$OBJ/regress.log
 211 fi
 212
 213 # truncate logfiles
 214 >$TEST_SSH_LOGFILE
 215 >$TEST_SSHD_LOGFILE
 216 >$TEST_REGRESS_LOGFILE
 217
 218 # Create wrapper ssh with logging.  We can't just specify "SSH=ssh -E..."
 219 # because sftp and scp don't handle spaces in arguments.
 220 SSHLOGWRAP=$OBJ/ssh-log-wrapper.sh
 221 echo "#!/bin/sh" > $SSHLOGWRAP
 222 echo "exec ${SSH} -E${TEST_SSH_LOGFILE} "'"$@"' >>$SSHLOGWRAP
 223
 224 chmod a+rx $OBJ/ssh-log-wrapper.sh
 225 REAL_SSH="$SSH"
 226 SSH="$SSHLOGWRAP"
 227
 228 # Some test data.  We make a copy because some tests will overwrite it.
 229 # The tests may assume that $DATA exists and is writable and $COPY does
 230 # not exist.  Tests requiring larger data files can call increase_datafile_size
 231 # [kbytes] to ensure the file is at least that large.
 232 DATANAME=data
 233 DATA=$OBJ/${DATANAME}
 234 cat ${SSHAGENT_BIN} >${DATA}
 235 chmod u+w ${DATA}
 236 COPY=$OBJ/copy
 237 rm -f ${COPY}
 238
 239 increase_datafile_size()
 240 {
 241         while [ `du -k ${DATA} | cut -f1` -lt $1 ]; do
 242                 cat ${SSHAGENT_BIN} >>${DATA}
 243         done
 244 }
 245
 246 # these should be used in tests
 247 export SSH SSHD SSHAGENT SSHADD SSHKEYGEN SSHKEYSCAN SFTP SFTPSERVER SCP
 248 #echo $SSH $SSHD $SSHAGENT $SSHADD $SSHKEYGEN $SSHKEYSCAN $SFTP $SFTPSERVER $SCP
 249
 250 # Portable specific functions
 251 have_prog()
 252 {
 253         saved_IFS="$IFS"
 254         IFS=":"
 255         for i in $PATH
 256         do
 257                 if [ -x $i/$1 ]; then
 258                         IFS="$saved_IFS"
 259                         return 0
 260                 fi
 261         done
 262         IFS="$saved_IFS"
 263         return 1
 264 }
 265
 266 jot() {
 267         awk "BEGIN { for (i = $2; i < $2 + $1; i++) { printf \"%d\n\", i } exit }"
 268 }
 269
 270 # Check whether preprocessor symbols are defined in config.h.
 271 config_defined ()
 272 {
 273         str=$1
 274         while test "x$2" != "x" ; do
 275                 str="$str|$2"
 276                 shift
 277         done
 278         egrep "^#define.*($str)" ${BUILDDIR}/config.h >/dev/null 2>&1
 279 }
 280
 281 md5 () {
 282         if have_prog md5sum; then
 283                 md5sum
 284         elif have_prog openssl; then
 285                 openssl md5
 286         elif have_prog cksum; then
 287                 cksum
 288         elif have_prog sum; then
 289                 sum
 290         else
 291                 wc -c
 292         fi
 293 }
 294 # End of portable specific functions
 295
 296 stop_sshd ()
 297 {
 298         if [ -f $PIDFILE ]; then
 299                 pid=`$SUDO cat $PIDFILE`
 300                 if [ "X$pid" = "X" ]; then
 301                         echo no sshd running
 302                 else
 303                         if [ $pid -lt 2 ]; then
 304                                 echo bad pid for sshd: $pid
 305                         else
 306                                 $SUDO kill $pid
 307                                 trace "wait for sshd to exit"
 308                                 i=0;
 309                                 while [ -f $PIDFILE -a $i -lt 5 ]; do
 310                                         i=`expr $i + 1`
 311                                         sleep $i
 312                                 done
 313                                 test -f $PIDFILE && \
 314                                     fatal "sshd didn't exit port $PORT pid $pid"
 315                         fi
 316                 fi
 317         fi
 318 }
 319
 320 # helper
 321 cleanup ()
 322 {
 323         if [ "x$SSH_PID" != "x" ]; then
 324                 if [ $SSH_PID -lt 2 ]; then
 325                         echo bad pid for ssh: $SSH_PID
 326                 else
 327                         kill $SSH_PID
 328                 fi
 329         fi
 330         stop_sshd
 331 }
 332
 333 start_debug_log ()
 334 {
 335         echo "trace: $@" >$TEST_REGRESS_LOGFILE
 336         echo "trace: $@" >$TEST_SSH_LOGFILE
 337         echo "trace: $@" >$TEST_SSHD_LOGFILE
 338 }
 339
 340 save_debug_log ()
 341 {
 342         echo $@ >>$TEST_REGRESS_LOGFILE
 343         echo $@ >>$TEST_SSH_LOGFILE
 344         echo $@ >>$TEST_SSHD_LOGFILE
 345         (cat $TEST_REGRESS_LOGFILE; echo) >>$OBJ/failed-regress.log
 346         (cat $TEST_SSH_LOGFILE; echo) >>$OBJ/failed-ssh.log
 347         (cat $TEST_SSHD_LOGFILE; echo) >>$OBJ/failed-sshd.log
 348 }
 349
 350 trace ()
 351 {
 352         start_debug_log $@
 353         if [ "X$TEST_SSH_TRACE" = "Xyes" ]; then
 354                 echo "$@"
 355         fi
 356 }
 357
 358 verbose ()
 359 {
 360         start_debug_log $@
 361         if [ "X$TEST_SSH_QUIET" != "Xyes" ]; then
 362                 echo "$@"
 363         fi
 364 }
 365
 366 warn ()
 367 {
 368         echo "WARNING: $@" >>$TEST_SSH_LOGFILE
 369         echo "WARNING: $@"
 370 }
 371
 372 fail ()
 373 {
 374         save_debug_log "FAIL: $@"
 375         RESULT=1
 376         echo "$@"
 377
 378 }
 379
 380 fatal ()
 381 {
 382         save_debug_log "FATAL: $@"
 383         printf "FATAL: "
 384         fail "$@"
 385         cleanup
 386         exit $RESULT
 387 }
 388
 389 ssh_version ()
 390 {
 391         echo ${SSH_PROTOCOLS} | grep "$1" >/dev/null
 392 }
 393
 394 RESULT=0
 395 PIDFILE=$OBJ/pidfile
 396
 397 trap fatal 3 2
 398
 399 if ssh_version 1; then
 400         PROTO="2,1"
 401 else
 402         PROTO="2"
 403 fi
 404
 405 # create server config
 406 cat << EOF > $OBJ/sshd_config
 407         StrictModes             no
 408         Port                    $PORT
 409         AddressFamily           inet
 410         ListenAddress           127.0.0.1
 411         #ListenAddress          ::1
 412         PidFile                 $PIDFILE
 413         AuthorizedKeysFile      $OBJ/authorized_keys_%u
 414         LogLevel                DEBUG3
 415         AcceptEnv               _XXX_TEST_*
 416         AcceptEnv               _XXX_TEST
 417         Subsystem       sftp    $SFTPSERVER
 418 EOF
 419
 420 # This may be necessary if /usr/src and/or /usr/obj are group-writable,
 421 # but if you aren't careful with permissions then the unit tests could
 422 # be abused to locally escalate privileges.
 423 if [ ! -z "$TEST_SSH_UNSAFE_PERMISSIONS" ]; then
 424         echo "StrictModes no" >> $OBJ/sshd_config
 425 fi
 426
 427 if [ ! -z "$TEST_SSH_SSHD_CONFOPTS" ]; then
 428         trace "adding sshd_config option $TEST_SSH_SSHD_CONFOPTS"
 429         echo "$TEST_SSH_SSHD_CONFOPTS" >> $OBJ/sshd_config
 430 fi
 431
 432 # server config for proxy connects
 433 cp $OBJ/sshd_config $OBJ/sshd_proxy
 434
 435 # allow group-writable directories in proxy-mode
 436 echo 'StrictModes no' >> $OBJ/sshd_proxy
 437
 438 # create client config
 439 cat << EOF > $OBJ/ssh_config
 440 Host *
 441         Hostname                127.0.0.1
 442         HostKeyAlias            localhost-with-alias
 443         Port                    $PORT
 444         User                    $USER
 445         GlobalKnownHostsFile    $OBJ/known_hosts
 446         UserKnownHostsFile      $OBJ/known_hosts
 447         PubkeyAuthentication    yes
 448         ChallengeResponseAuthentication no
 449         HostbasedAuthentication no
 450         PasswordAuthentication  no
 451         BatchMode               yes
 452         StrictHostKeyChecking   yes
 453         LogLevel                DEBUG3
 454 EOF
 455
 456 if [ ! -z "$TEST_SSH_SSH_CONFOPTS" ]; then
 457         trace "adding ssh_config option $TEST_SSH_SSH_CONFOPTS"
 458         echo "$TEST_SSH_SSH_CONFOPTS" >> $OBJ/ssh_config
 459 fi
 460
 461 rm -f $OBJ/known_hosts $OBJ/authorized_keys_$USER
 462
 463 if ssh_version 1; then
 464         SSH_KEYTYPES="rsa rsa1"
 465 else
 466         SSH_KEYTYPES="rsa ed25519"
 467 fi
 468 trace "generate keys"
 469 for t in ${SSH_KEYTYPES}; do
 470         # generate user key
 471         if [ ! -f $OBJ/$t ] || [ ${SSHKEYGEN_BIN} -nt $OBJ/$t ]; then
 472                 rm -f $OBJ/$t
 473                 ${SSHKEYGEN} -q -N '' -t $t  -f $OBJ/$t ||\
 474                         fail "ssh-keygen for $t failed"
 475         fi
 476
 477         # known hosts file for client
 478         (
 479                 printf 'localhost-with-alias,127.0.0.1,::1 '
 480                 cat $OBJ/$t.pub
 481         ) >> $OBJ/known_hosts
 482
 483         # setup authorized keys
 484         cat $OBJ/$t.pub >> $OBJ/authorized_keys_$USER
 485         echo IdentityFile $OBJ/$t >> $OBJ/ssh_config
 486
 487         # use key as host key, too
 488         $SUDO cp $OBJ/$t $OBJ/host.$t
 489         echo HostKey $OBJ/host.$t >> $OBJ/sshd_config
 490
 491         # don't use SUDO for proxy connect
 492         echo HostKey $OBJ/$t >> $OBJ/sshd_proxy
 493 done
 494 chmod 644 $OBJ/authorized_keys_$USER
 495
 496 # Activate Twisted Conch tests if the binary is present
 497 REGRESS_INTEROP_CONCH=no
 498 if test -x "$CONCH" ; then
 499         REGRESS_INTEROP_CONCH=yes
 500 fi
 501
 502 # If PuTTY is present and we are running a PuTTY test, prepare keys and
 503 # configuration
 504 REGRESS_INTEROP_PUTTY=no
 505 if test -x "$PUTTYGEN" -a -x "$PLINK" ; then
 506         REGRESS_INTEROP_PUTTY=yes
 507 fi
 508 case "$SCRIPT" in
 509 *putty*)        ;;
 510 *)              REGRESS_INTEROP_PUTTY=no ;;
 511 esac
 512
 513 if test "$REGRESS_INTEROP_PUTTY" = "yes" ; then
 514         mkdir -p ${OBJ}/.putty
 515
 516         # Add a PuTTY key to authorized_keys
 517         rm -f ${OBJ}/putty.rsa2
 518         if ! puttygen -t rsa -o ${OBJ}/putty.rsa2 \
 519             --new-passphrase /dev/null < /dev/null > /dev/null; then
 520                 echo "Your installed version of PuTTY is too old to support --new-passphrase; trying without (may require manual interaction) ..." >&2
 521                 puttygen -t rsa -o ${OBJ}/putty.rsa2 < /dev/null > /dev/null
 522         fi
 523         puttygen -O public-openssh ${OBJ}/putty.rsa2 \
 524             >> $OBJ/authorized_keys_$USER
 525
 526         # Convert rsa2 host key to PuTTY format
 527         ${SRC}/ssh2putty.sh 127.0.0.1 $PORT $OBJ/rsa > \
 528             ${OBJ}/.putty/sshhostkeys
 529         ${SRC}/ssh2putty.sh 127.0.0.1 22 $OBJ/rsa >> \
 530             ${OBJ}/.putty/sshhostkeys
 531
 532         # Setup proxied session
 533         mkdir -p ${OBJ}/.putty/sessions
 534         rm -f ${OBJ}/.putty/sessions/localhost_proxy
 535         echo "Protocol=ssh" >> ${OBJ}/.putty/sessions/localhost_proxy
 536         echo "HostName=127.0.0.1" >> ${OBJ}/.putty/sessions/localhost_proxy
 537         echo "PortNumber=$PORT" >> ${OBJ}/.putty/sessions/localhost_proxy
 538         echo "ProxyMethod=5" >> ${OBJ}/.putty/sessions/localhost_proxy
 539         echo "ProxyTelnetCommand=sh ${SRC}/sshd-log-wrapper.sh ${TEST_SSHD_LOGFILE} ${SSHD} -i -f $OBJ/sshd_proxy" >> ${OBJ}/.putty/sessions/localhost_proxy
 540         echo "ProxyLocalhost=1" >> ${OBJ}/.putty/sessions/localhost_proxy
 541
 542         REGRESS_INTEROP_PUTTY=yes
 543 fi
 544
 545 # create a proxy version of the client config
 546 (
 547         cat $OBJ/ssh_config
 548         echo proxycommand ${SUDO} sh ${SRC}/sshd-log-wrapper.sh ${TEST_SSHD_LOGFILE} ${SSHD} -i -f $OBJ/sshd_proxy
 549 ) > $OBJ/ssh_proxy
 550
 551 # check proxy config
 552 ${SSHD} -t -f $OBJ/sshd_proxy   || fatal "sshd_proxy broken"
 553
 554 start_sshd ()
 555 {
 556         # start sshd
 557         $SUDO ${SSHD} -f $OBJ/sshd_config "$@" -t || fatal "sshd_config broken"
 558         $SUDO ${SSHD} -f $OBJ/sshd_config "$@" -E$TEST_SSHD_LOGFILE
 559
 560         trace "wait for sshd"
 561         i=0;
 562         while [ ! -f $PIDFILE -a $i -lt 10 ]; do
 563                 i=`expr $i + 1`
 564                 sleep $i
 565         done
 566
 567         test -f $PIDFILE || fatal "no sshd running on port $PORT"
 568 }
 569
 570 # source test body
 571 . $SCRIPT
 572
 573 # kill sshd
 574 cleanup
 575 if [ $RESULT -eq 0 ]; then
 576         verbose ok $tid
 577 else
 578         echo failed $tid
 579 fi
 580 exit $RESULT