crypto/openssh/regress/test-exec.sh

   1 #       $OpenBSD: test-exec.sh,v 1.61 2017/07/28 10:32:08 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 ${TEST_SSH_CONCH} 2>/dev/null` ;;
 130         esac
 131 fi
 132
 133 # Path to sshd must be absolute for rexec
 134 case "$SSHD" in
 135 /*) ;;
 136 *) SSHD=`which $SSHD` ;;
 137 esac
 138
 139 case "$SSHAGENT" in
 140 /*) ;;
 141 *) SSHAGENT=`which $SSHAGENT` ;;
 142 esac
 143
 144 # Record the actual binaries used.
 145 SSH_BIN=${SSH}
 146 SSHD_BIN=${SSHD}
 147 SSHAGENT_BIN=${SSHAGENT}
 148 SSHADD_BIN=${SSHADD}
 149 SSHKEYGEN_BIN=${SSHKEYGEN}
 150 SSHKEYSCAN_BIN=${SSHKEYSCAN}
 151 SFTP_BIN=${SFTP}
 152 SFTPSERVER_BIN=${SFTPSERVER}
 153 SCP_BIN=${SCP}
 154
 155 if [ "x$USE_VALGRIND" != "x" ]; then
 156         mkdir -p $OBJ/valgrind-out
 157         VG_TEST=`basename $SCRIPT .sh`
 158
 159         # Some tests are difficult to fix.
 160         case "$VG_TEST" in
 161         connect-privsep|reexec)
 162                 VG_SKIP=1 ;;
 163         esac
 164
 165         if [ x"$VG_SKIP" = "x" ]; then
 166                 VG_IGNORE="/bin/*,/sbin/*,/usr/*,/var/*"
 167                 VG_LOG="$OBJ/valgrind-out/${VG_TEST}."
 168                 VG_OPTS="--track-origins=yes --leak-check=full"
 169                 VG_OPTS="$VG_OPTS --trace-children=yes"
 170                 VG_OPTS="$VG_OPTS --trace-children-skip=${VG_IGNORE}"
 171                 VG_PATH="valgrind"
 172                 if [ "x$VALGRIND_PATH" != "x" ]; then
 173                         VG_PATH="$VALGRIND_PATH"
 174                 fi
 175                 VG="$VG_PATH $VG_OPTS"
 176                 SSH="$VG --log-file=${VG_LOG}ssh.%p $SSH"
 177                 SSHD="$VG --log-file=${VG_LOG}sshd.%p $SSHD"
 178                 SSHAGENT="$VG --log-file=${VG_LOG}ssh-agent.%p $SSHAGENT"
 179                 SSHADD="$VG --log-file=${VG_LOG}ssh-add.%p $SSHADD"
 180                 SSHKEYGEN="$VG --log-file=${VG_LOG}ssh-keygen.%p $SSHKEYGEN"
 181                 SSHKEYSCAN="$VG --log-file=${VG_LOG}ssh-keyscan.%p $SSHKEYSCAN"
 182                 SFTP="$VG --log-file=${VG_LOG}sftp.%p ${SFTP}"
 183                 SCP="$VG --log-file=${VG_LOG}scp.%p $SCP"
 184                 cat > $OBJ/valgrind-sftp-server.sh << EOF
 185 #!/bin/sh
 186 exec $VG --log-file=${VG_LOG}sftp-server.%p $SFTPSERVER "\$@"
 187 EOF
 188                 chmod a+rx $OBJ/valgrind-sftp-server.sh
 189                 SFTPSERVER="$OBJ/valgrind-sftp-server.sh"
 190         fi
 191 fi
 192
 193 # Logfiles.
 194 # SSH_LOGFILE should be the debug output of ssh(1) only
 195 # SSHD_LOGFILE should be the debug output of sshd(8) only
 196 # REGRESS_LOGFILE is the output of the test itself stdout and stderr
 197 if [ "x$TEST_SSH_LOGFILE" = "x" ]; then
 198         TEST_SSH_LOGFILE=$OBJ/ssh.log
 199 fi
 200 if [ "x$TEST_SSHD_LOGFILE" = "x" ]; then
 201         TEST_SSHD_LOGFILE=$OBJ/sshd.log
 202 fi
 203 if [ "x$TEST_REGRESS_LOGFILE" = "x" ]; then
 204         TEST_REGRESS_LOGFILE=$OBJ/regress.log
 205 fi
 206
 207 # truncate logfiles
 208 >$TEST_SSH_LOGFILE
 209 >$TEST_SSHD_LOGFILE
 210 >$TEST_REGRESS_LOGFILE
 211
 212 # Create wrapper ssh with logging.  We can't just specify "SSH=ssh -E..."
 213 # because sftp and scp don't handle spaces in arguments.
 214 SSHLOGWRAP=$OBJ/ssh-log-wrapper.sh
 215 echo "#!/bin/sh" > $SSHLOGWRAP
 216 echo "exec ${SSH} -E${TEST_SSH_LOGFILE} "'"$@"' >>$SSHLOGWRAP
 217
 218 chmod a+rx $OBJ/ssh-log-wrapper.sh
 219 REAL_SSH="$SSH"
 220 SSH="$SSHLOGWRAP"
 221
 222 # Some test data.  We make a copy because some tests will overwrite it.
 223 # The tests may assume that $DATA exists and is writable and $COPY does
 224 # not exist.  Tests requiring larger data files can call increase_datafile_size
 225 # [kbytes] to ensure the file is at least that large.
 226 DATANAME=data
 227 DATA=$OBJ/${DATANAME}
 228 cat ${SSHAGENT_BIN} >${DATA}
 229 chmod u+w ${DATA}
 230 COPY=$OBJ/copy
 231 rm -f ${COPY}
 232
 233 increase_datafile_size()
 234 {
 235         while [ `du -k ${DATA} | cut -f1` -lt $1 ]; do
 236                 cat ${SSHAGENT_BIN} >>${DATA}
 237         done
 238 }
 239
 240 # these should be used in tests
 241 export SSH SSHD SSHAGENT SSHADD SSHKEYGEN SSHKEYSCAN SFTP SFTPSERVER SCP
 242 #echo $SSH $SSHD $SSHAGENT $SSHADD $SSHKEYGEN $SSHKEYSCAN $SFTP $SFTPSERVER $SCP
 243
 244 # Portable specific functions
 245 have_prog()
 246 {
 247         saved_IFS="$IFS"
 248         IFS=":"
 249         for i in $PATH
 250         do
 251                 if [ -x $i/$1 ]; then
 252                         IFS="$saved_IFS"
 253                         return 0
 254                 fi
 255         done
 256         IFS="$saved_IFS"
 257         return 1
 258 }
 259
 260 jot() {
 261         awk "BEGIN { for (i = $2; i < $2 + $1; i++) { printf \"%d\n\", i } exit }"
 262 }
 263
 264 # Check whether preprocessor symbols are defined in config.h.
 265 config_defined ()
 266 {
 267         str=$1
 268         while test "x$2" != "x" ; do
 269                 str="$str|$2"
 270                 shift
 271         done
 272         egrep "^#define.*($str)" ${BUILDDIR}/config.h >/dev/null 2>&1
 273 }
 274
 275 md5 () {
 276         if have_prog md5sum; then
 277                 md5sum
 278         elif have_prog openssl; then
 279                 openssl md5
 280         elif have_prog cksum; then
 281                 cksum
 282         elif have_prog sum; then
 283                 sum
 284         else
 285                 wc -c
 286         fi
 287 }
 288 # End of portable specific functions
 289
 290 stop_sshd ()
 291 {
 292         if [ -f $PIDFILE ]; then
 293                 pid=`$SUDO cat $PIDFILE`
 294                 if [ "X$pid" = "X" ]; then
 295                         echo no sshd running
 296                 else
 297                         if [ $pid -lt 2 ]; then
 298                                 echo bad pid for sshd: $pid
 299                         else
 300                                 $SUDO kill $pid
 301                                 trace "wait for sshd to exit"
 302                                 i=0;
 303                                 while [ -f $PIDFILE -a $i -lt 5 ]; do
 304                                         i=`expr $i + 1`
 305                                         sleep $i
 306                                 done
 307                                 if test -f $PIDFILE; then
 308                                         if $SUDO kill -0 $pid; then
 309                                                 echo "sshd didn't exit " \
 310                                                     "port $PORT pid $pid"
 311                                         else
 312                                                 echo "sshd died without cleanup"
 313                                         fi
 314                                         exit 1
 315                                 fi
 316                         fi
 317                 fi
 318         fi
 319 }
 320
 321 # helper
 322 cleanup ()
 323 {
 324         if [ "x$SSH_PID" != "x" ]; then
 325                 if [ $SSH_PID -lt 2 ]; then
 326                         echo bad pid for ssh: $SSH_PID
 327                 else
 328                         kill $SSH_PID
 329                 fi
 330         fi
 331         stop_sshd
 332 }
 333
 334 start_debug_log ()
 335 {
 336         echo "trace: $@" >$TEST_REGRESS_LOGFILE
 337         echo "trace: $@" >$TEST_SSH_LOGFILE
 338         echo "trace: $@" >$TEST_SSHD_LOGFILE
 339 }
 340
 341 save_debug_log ()
 342 {
 343         echo $@ >>$TEST_REGRESS_LOGFILE
 344         echo $@ >>$TEST_SSH_LOGFILE
 345         echo $@ >>$TEST_SSHD_LOGFILE
 346         (cat $TEST_REGRESS_LOGFILE; echo) >>$OBJ/failed-regress.log
 347         (cat $TEST_SSH_LOGFILE; echo) >>$OBJ/failed-ssh.log
 348         (cat $TEST_SSHD_LOGFILE; echo) >>$OBJ/failed-sshd.log
 349 }
 350
 351 trace ()
 352 {
 353         start_debug_log $@
 354         if [ "X$TEST_SSH_TRACE" = "Xyes" ]; then
 355                 echo "$@"
 356         fi
 357 }
 358
 359 verbose ()
 360 {
 361         start_debug_log $@
 362         if [ "X$TEST_SSH_QUIET" != "Xyes" ]; then
 363                 echo "$@"
 364         fi
 365 }
 366
 367 warn ()
 368 {
 369         echo "WARNING: $@" >>$TEST_SSH_LOGFILE
 370         echo "WARNING: $@"
 371 }
 372
 373 fail ()
 374 {
 375         save_debug_log "FAIL: $@"
 376         RESULT=1
 377         echo "$@"
 378
 379 }
 380
 381 fatal ()
 382 {
 383         save_debug_log "FATAL: $@"
 384         printf "FATAL: "
 385         fail "$@"
 386         cleanup
 387         exit $RESULT
 388 }
 389
 390 RESULT=0
 391 PIDFILE=$OBJ/pidfile
 392
 393 trap fatal 3 2
 394
 395 # create server config
 396 cat << EOF > $OBJ/sshd_config
 397         StrictModes             no
 398         Port                    $PORT
 399         AddressFamily           inet
 400         ListenAddress           127.0.0.1
 401         #ListenAddress          ::1
 402         PidFile                 $PIDFILE
 403         AuthorizedKeysFile      $OBJ/authorized_keys_%u
 404         LogLevel                DEBUG3
 405         AcceptEnv               _XXX_TEST_*
 406         AcceptEnv               _XXX_TEST
 407         Subsystem       sftp    $SFTPSERVER
 408 EOF
 409
 410 # This may be necessary if /usr/src and/or /usr/obj are group-writable,
 411 # but if you aren't careful with permissions then the unit tests could
 412 # be abused to locally escalate privileges.
 413 if [ ! -z "$TEST_SSH_UNSAFE_PERMISSIONS" ]; then
 414         echo "StrictModes no" >> $OBJ/sshd_config
 415 fi
 416
 417 if [ ! -z "$TEST_SSH_SSHD_CONFOPTS" ]; then
 418         trace "adding sshd_config option $TEST_SSH_SSHD_CONFOPTS"
 419         echo "$TEST_SSH_SSHD_CONFOPTS" >> $OBJ/sshd_config
 420 fi
 421
 422 # server config for proxy connects
 423 cp $OBJ/sshd_config $OBJ/sshd_proxy
 424
 425 # allow group-writable directories in proxy-mode
 426 echo 'StrictModes no' >> $OBJ/sshd_proxy
 427
 428 # create client config
 429 cat << EOF > $OBJ/ssh_config
 430 Host *
 431         Hostname                127.0.0.1
 432         HostKeyAlias            localhost-with-alias
 433         Port                    $PORT
 434         User                    $USER
 435         GlobalKnownHostsFile    $OBJ/known_hosts
 436         UserKnownHostsFile      $OBJ/known_hosts
 437         PubkeyAuthentication    yes
 438         ChallengeResponseAuthentication no
 439         HostbasedAuthentication no
 440         PasswordAuthentication  no
 441         BatchMode               yes
 442         StrictHostKeyChecking   yes
 443         LogLevel                DEBUG3
 444 EOF
 445
 446 if [ ! -z "$TEST_SSH_SSH_CONFOPTS" ]; then
 447         trace "adding ssh_config option $TEST_SSH_SSH_CONFOPTS"
 448         echo "$TEST_SSH_SSH_CONFOPTS" >> $OBJ/ssh_config
 449 fi
 450
 451 rm -f $OBJ/known_hosts $OBJ/authorized_keys_$USER
 452
 453 SSH_KEYTYPES="rsa ed25519"
 454
 455 trace "generate keys"
 456 for t in ${SSH_KEYTYPES}; do
 457         # generate user key
 458         if [ ! -f $OBJ/$t ] || [ ${SSHKEYGEN_BIN} -nt $OBJ/$t ]; then
 459                 rm -f $OBJ/$t
 460                 ${SSHKEYGEN} -q -N '' -t $t  -f $OBJ/$t ||\
 461                         fail "ssh-keygen for $t failed"
 462         fi
 463
 464         # known hosts file for client
 465         (
 466                 printf 'localhost-with-alias,127.0.0.1,::1 '
 467                 cat $OBJ/$t.pub
 468         ) >> $OBJ/known_hosts
 469
 470         # setup authorized keys
 471         cat $OBJ/$t.pub >> $OBJ/authorized_keys_$USER
 472         echo IdentityFile $OBJ/$t >> $OBJ/ssh_config
 473
 474         # use key as host key, too
 475         $SUDO cp $OBJ/$t $OBJ/host.$t
 476         echo HostKey $OBJ/host.$t >> $OBJ/sshd_config
 477
 478         # don't use SUDO for proxy connect
 479         echo HostKey $OBJ/$t >> $OBJ/sshd_proxy
 480 done
 481 chmod 644 $OBJ/authorized_keys_$USER
 482
 483 # Activate Twisted Conch tests if the binary is present
 484 REGRESS_INTEROP_CONCH=no
 485 if test -x "$CONCH" ; then
 486         REGRESS_INTEROP_CONCH=yes
 487 fi
 488
 489 # If PuTTY is present and we are running a PuTTY test, prepare keys and
 490 # configuration
 491 REGRESS_INTEROP_PUTTY=no
 492 if test -x "$PUTTYGEN" -a -x "$PLINK" ; then
 493         REGRESS_INTEROP_PUTTY=yes
 494 fi
 495 case "$SCRIPT" in
 496 *putty*)        ;;
 497 *)              REGRESS_INTEROP_PUTTY=no ;;
 498 esac
 499
 500 if test "$REGRESS_INTEROP_PUTTY" = "yes" ; then
 501         mkdir -p ${OBJ}/.putty
 502
 503         # Add a PuTTY key to authorized_keys
 504         rm -f ${OBJ}/putty.rsa2
 505         if ! puttygen -t rsa -o ${OBJ}/putty.rsa2 \
 506             --new-passphrase /dev/null < /dev/null > /dev/null; then
 507                 echo "Your installed version of PuTTY is too old to support --new-passphrase; trying without (may require manual interaction) ..." >&2
 508                 puttygen -t rsa -o ${OBJ}/putty.rsa2 < /dev/null > /dev/null
 509         fi
 510         puttygen -O public-openssh ${OBJ}/putty.rsa2 \
 511             >> $OBJ/authorized_keys_$USER
 512
 513         # Convert rsa2 host key to PuTTY format
 514         ${SRC}/ssh2putty.sh 127.0.0.1 $PORT $OBJ/rsa > \
 515             ${OBJ}/.putty/sshhostkeys
 516         ${SRC}/ssh2putty.sh 127.0.0.1 22 $OBJ/rsa >> \
 517             ${OBJ}/.putty/sshhostkeys
 518
 519         # Setup proxied session
 520         mkdir -p ${OBJ}/.putty/sessions
 521         rm -f ${OBJ}/.putty/sessions/localhost_proxy
 522         echo "Protocol=ssh" >> ${OBJ}/.putty/sessions/localhost_proxy
 523         echo "HostName=127.0.0.1" >> ${OBJ}/.putty/sessions/localhost_proxy
 524         echo "PortNumber=$PORT" >> ${OBJ}/.putty/sessions/localhost_proxy
 525         echo "ProxyMethod=5" >> ${OBJ}/.putty/sessions/localhost_proxy
 526         echo "ProxyTelnetCommand=sh ${SRC}/sshd-log-wrapper.sh ${TEST_SSHD_LOGFILE} ${SSHD} -i -f $OBJ/sshd_proxy" >> ${OBJ}/.putty/sessions/localhost_proxy
 527         echo "ProxyLocalhost=1" >> ${OBJ}/.putty/sessions/localhost_proxy
 528
 529         REGRESS_INTEROP_PUTTY=yes
 530 fi
 531
 532 # create a proxy version of the client config
 533 (
 534         cat $OBJ/ssh_config
 535         echo proxycommand ${SUDO} sh ${SRC}/sshd-log-wrapper.sh ${TEST_SSHD_LOGFILE} ${SSHD} -i -f $OBJ/sshd_proxy
 536 ) > $OBJ/ssh_proxy
 537
 538 # check proxy config
 539 ${SSHD} -t -f $OBJ/sshd_proxy   || fatal "sshd_proxy broken"
 540
 541 start_sshd ()
 542 {
 543         # start sshd
 544         $SUDO ${SSHD} -f $OBJ/sshd_config "$@" -t || fatal "sshd_config broken"
 545         $SUDO ${SSHD} -f $OBJ/sshd_config "$@" -E$TEST_SSHD_LOGFILE
 546
 547         trace "wait for sshd"
 548         i=0;
 549         while [ ! -f $PIDFILE -a $i -lt 10 ]; do
 550                 i=`expr $i + 1`
 551                 sleep $i
 552         done
 553
 554         test -f $PIDFILE || fatal "no sshd running on port $PORT"
 555 }
 556
 557 # source test body
 558 . $SCRIPT
 559
 560 # kill sshd
 561 cleanup
 562 if [ $RESULT -eq 0 ]; then
 563         verbose ok $tid
 564 else
 565         echo failed $tid
 566 fi
 567 exit $RESULT