mdw@git.distorted.org.uk Git - tripe/blob - server/tests.at

   1 ### -*-autotest-*-
   2 ###
   3 ### Test script for the main server
   4 ###
   5 ### (c) 2008 Straylight/Edgeware
   6 ###
   7
   8 ###----- Licensing notice ---------------------------------------------------
   9 ###
  10 ### This file is part of Trivial IP Encryption (TrIPE).
  11 ###
  12 ### TrIPE is free software: you can redistribute it and/or modify it under
  13 ### the terms of the GNU General Public License as published by the Free
  14 ### Software Foundation; either version 3 of the License, or (at your
  15 ### option) any later version.
  16 ###
  17 ### TrIPE is distributed in the hope that it will be useful, but WITHOUT
  18 ### ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  19 ### FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  20 ### for more details.
  21 ###
  22 ### You should have received a copy of the GNU General Public License
  23 ### along with TrIPE.  If not, see <https://www.gnu.org/licenses/>.
  24
  25 m4_define([nl], [
  26 ])
  27
  28 ## Configure a directory ready for use by tripe.
  29 m4_define([SETUPDIR], [
  30   cp $abs_top_srcdir/t/keyring-$1 ./keyring
  31   key extract -f-secret keyring.pub
  32 ])
  33
  34 ## Running standard programs with useful options.
  35 m4_define([TRIPE],
  36   [env TRIPE_PRIVHELPER=$abs_top_builddir/priv/tripe-privhelper \
  37      $abs_top_builddir/server/tripe -F -d. -aadmin -p0 -b127.0.0.1 \
  38         ${TRIPE_TEST_TRACEOPTS+-T$TRIPE_TEST_TRACEOPTS}])
  39 m4_define([TRIPECTL], [$abs_top_builddir/client/tripectl -d. -aadmin])
  40 m4_define([USLIP], [$abs_top_builddir/uslip/tripe-uslip])
  41 m4_define([MITM], [$abs_top_builddir/proxy/tripe-mitm])
  42 m4_define([BULKTEST],
  43   [$abs_top_builddir/server/tripe-test \
  44      ${TRIPE_TEST_TRACEOPTS+-T$TRIPE_TEST_TRACEOPTS}])
  45
  46 ## Pause for a bit.
  47 m4_define([SLEEP], [sleep 0.2])
  48
  49 ## WITH_STRACE(tag, cmd)
  50 ##
  51 ## There's an awful hack here.  If a process running under strace exits with
  52 ## a signal, then strace will kill itself with the same signal -- and
  53 ## therefore clobber the original process's core file.  So we arrange to run
  54 ## strace in one directory and have the child process run in another.
  55 m4_define([WITH_STRACE],
  56 [case "${TRIPE_TEST_STRACE-nil}" in
  57   nil)
  58     $2
  59     ;;
  60   *)
  61     mkdir -p strace-hack.$1/
  62     (ulimit -c hard >/dev/null 2>&1
  63      sh -c 'cd strace-hack.$1; exec "$[]@"' - \
  64         strace -ff -tt -v -s1024 -o../$1.trace \
  65         sh -c 'cd ..; exec "$[]@"' - \
  66         $2)
  67     ;;
  68  esac])
  69
  70 ## Sequences.  (These are used for testing the replay protection machinery.)
  71 m4_define([R32], [ 0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15   dnl
  72                   16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31])
  73 m4_define([P32], [21 26 14 12 25 18  2 27 10 31 24 29  0 20 17 11   dnl
  74                    8  3  7 23 19  1 13 30  6  9  5 22 15 28 16  4])
  75
  76 ###--------------------------------------------------------------------------
  77 ### Scaffolding for running a TrIPE server.
  78
  79 ## WITH_TRIPEX(dir, args, body)
  80 m4_define([WITH_TRIPEX], [
  81
  82 ## If this directory doesn't exist then Bad Things will happen.
  83 if test ! -d $1; then
  84   echo >&2 "server directory \`$1' doesn't exist"
  85   exit 99
  86 fi
  87
  88 ## Remove the status file.  This is how we notice that the server's died.
  89 rm -f $1/server-status
  90 > $1/expected-server-output
  91 > $1/expected-server-errors
  92
  93 ## Autotest writes crap to standard output, which we don't want going to the
  94 ## server.  So keep a copy of the standard output, do the pipe, and recover
  95 ## the old stdout inside the group.
  96 exec 3>&1
  97 { (
  98 exec 1>&3 3>&-
  99
 100 ## Wait for the socket to appear.  Watch for the server crashing during
 101 ## initialization.  Busy waiting is evil, but it's the best I can do and
 102 ## not sleep for ages.  (Yes, a second on each test group is a long time.)
 103 while test ! -r $1/server-status && test ! -S $1/admin; do :; done
 104
 105 ## Make the port number availale.
 106 AT_CHECK([TRIPECTL -d$1 PORT],, [stdout])
 107 mv stdout $1/port
 108
 109 ## Test body...
 110 $3
 111
 112 ## End of the test, now run the server.
 113 ) && :; } | {
 114   cd $1
 115   echo "TRIPE $2" >&2
 116   WITH_STRACE([tripe], [TRIPE $2 >server-output.full 2>server-errors.full])
 117   stat=$?
 118   echo $stat >server-status
 119   if test $stat -ne 0; then
 120     echo "exit status: $stat" >>server-errors.full
 121   fi
 122   grep -v '^+ tripe: ' server-errors.full >server-errors
 123
 124   ## We interrupt this relatively sensible macro for an especially awful
 125   ## hack.  The tripe server emits warnings which are often caused by lack of
 126   ## synchronization between two peers.  These are harmless and shouldn't
 127   ## cause test failures.  But we shouldn't just trim out all messages that
 128   ## look like the spurious ones: if they appear when we're not expecting
 129   ## them, that's bad and they should properly cause a test failure.
 130   ##
 131   ## So we use the WARN command to insert magic directives into the server's
 132   ## message stream.  The directives begin with `WARN USER test'; remaining
 133   ## tokens may be as follows.
 134   ##
 135   ## PUSH               Introduce a new layer of nesting.  Settings between
 136   ##                    this PUSH and the matching POP will be forgotten
 137   ##                    following the POP.
 138   ##
 139   ## POP                End a layer of nesting.  See PUSH above.
 140   ##
 141   ## IGNORE tokens      Ignore lines which begin with the tokens.
 142   ##
 143   ## Token comparison isn't done very well, but it's good enough for these
 144   ## purposes.
 145   ##
 146   ## We also trim out trace lines here, since it's useful to produce them for
 147   ## debugging purposes and changing or introducing more of them shouldn't
 148   ## cause failures.
 149   awk '
 150         BEGIN {
 151           sp = 0;
 152           npat = 0;
 153         }
 154         $[]1 == "TRACE" { next; }
 155         $[]1 == "WARN" && $[]2 == "USER" && $[]3 == "test" {
 156           if ($[]4 == "PUSH")
 157             npatstk[[sp++]] = npat;
 158           else if ($[]4 == "IGNORE") {
 159             s = "";
 160             p = "";
 161             for (i = 5; i <= NF; i++) {
 162               p = p s $[]i;
 163               s = " ";
 164             }
 165             pat[[npat++]] = p;
 166           } else if ($[]4 == "POP")
 167             npat = npatstk[[--sp]];
 168           next;
 169         }
 170         {
 171           for (i = 0; i < npat; i++) {
 172             n = length(pat[[i]]);
 173             if (substr($[]0, 1, n) == pat[[i]])
 174               next;
 175           }
 176           print $[]0;
 177         }
 178   ' server-output.full >server-output
 179 }
 180 exec 3>&-
 181
 182 ## Now check that the server's output matches our expectations.
 183 mv $1/expected-server-output expout
 184 mv $1/expected-server-errors experr
 185 AT_CHECK([cat $1/server-output; cat >&2 $1/server-errors],,
 186          [expout], [experr])
 187 ])
 188
 189 ## WITH_TRIPE(args, body)
 190 m4_define([WITH_TRIPE], [WITH_TRIPEX([.], [$1], [$2])])
 191
 192 ## WITH_2TRIPES(adir, bdir, bothargs, aargs, bargs, body)
 193 m4_define([WITH_2TRIPES],
 194           [WITH_TRIPEX([$1], [$3 $4], [WITH_TRIPEX([$2], [$3 $5], [$6])])])
 195
 196 ## WITH_3TRIPES(adir, bdir, cdir, allargs, aargs, bargs, cargs, body)
 197 m4_define([WITH_3TRIPES],
 198           [WITH_TRIPEX([$1], [$4 $5],
 199           [WITH_TRIPEX([$2], [$4 $6],
 200           [WITH_TRIPEX([$3], [$4 $7],
 201           [$8])])])])
 202
 203 ## RETRY(n, body)
 204 m4_define([RETRY], [
 205   n=0 rc=1
 206   while test $n -lt $1; do
 207     if $2
 208     then rc=0; break
 209     fi
 210     n=$(( $n + 1 ))
 211   done
 212   exit $rc
 213 ])
 214
 215 ## COMMS_EPING(adir, aname, bdir, bname, [n])
 216 m4_define([COMMS_EPING], [
 217   AT_CHECK([RETRY([m4_default([$5], [1])],
 218     [TRIPECTL -d$1 EPING $4])],, [ignore])
 219   AT_CHECK([RETRY([m4_default([$5], [1])],
 220     [TRIPECTL -d$3 EPING $2])],, [ignore])
 221 ])
 222
 223 ## COMMS_SLIP(adir, aname, bdir, bname)
 224 m4_define([COMMS_SLIP], [
 225   AT_CHECK([echo "from $1" | USLIP -p $1/$4])
 226   AT_CHECK([USLIP -g $3/$2],, [from $1[]nl])
 227   AT_CHECK([echo "from $3" | USLIP -p $3/$2])
 228   AT_CHECK([USLIP -g $1/$4],, [from $3[]nl])
 229 ])
 230
 231 ## AWAIT_KXDONE(adir, aname, bdir, bname, body)
 232 m4_define([AWAIT_KXDONE], [
 233
 234   ## Ignore some reports caused by races.
 235   for i in $1!$4 $3!$2; do
 236     d=${i%!*} o=${i#*!}
 237     TRIPECTL -d$d WARN test PUSH
 238     TRIPECTL -d$d WARN test IGNORE WARN KX $o incorrect cookie
 239     TRIPECTL -d$d WARN test IGNORE WARN KX $o unexpected pre-challenge
 240     TRIPECTL -d$d WARN test IGNORE WARN KX $o unexpected challenge
 241   done
 242
 243   ## Watch for the key-exchange completion announcement in the background.
 244   COPROCESSES([wait-$1], [
 245     echo "WATCH +n"
 246     while read line; do
 247       set x $line; shift
 248       echo >&2 ">>> $line"
 249       case "$[]1:$[]2:$[]3" in
 250         OK::) ;;
 251         NOTE:KXDONE:$4) break ;;
 252         NOTE:* | TRACE:* | WARN:*) ;;
 253         *) exit 63 ;;
 254       esac
 255     done
 256   ], [
 257     TRIPECTL -d$1
 258   ]) & waiter_$1=$!
 259
 260   $5
 261
 262   ## Collect the completion announcement.
 263   wait $waiter_$1; waitrc=$?
 264   AT_CHECK([echo $waitrc],, [0[]nl])
 265
 266   ## Be interested in key-exchange warnings again.
 267   for d in $1 $3; do TRIPECTL -d$d WARN test POP; done
 268 ])
 269
 270 ## ESTABLISH(adir, aname, aopts, bdir, bname, bopts, [aport], [bport])
 271 m4_define([ESTABLISH], [
 272
 273   ## Set up the establishment.
 274   AWAIT_KXDONE([$1], [$2], [$4], [$5], [
 275     AT_CHECK([TRIPECTL -d$1 ADD -cork $6 $5 INET 127.0.0.1 \
 276       m4_if([$8], [], [$(cat $4/port)], [$8])])
 277     AT_CHECK([TRIPECTL -d$4 ADD $3 $2 INET 127.0.0.1 \
 278       m4_if([$7], [], [$(cat $1/port)], [$7])])
 279   ])
 280
 281   ## Check transport pinging.
 282   AT_CHECK([TRIPECTL -d$1 PING $5],, [ignore])
 283   AT_CHECK([TRIPECTL -d$4 PING $2],, [ignore])
 284
 285   ## Check communication works.
 286   COMMS_EPING([$1], [$2], [$4], [$5])
 287   COMMS_SLIP([$1], [$2], [$4], [$5])
 288 ])
 289
 290 ###--------------------------------------------------------------------------
 291 ### Very unpleasant coprocess handling.
 292
 293 ## COPROCESSES(TAG, PROC-A, PROC-B)
 294 m4_define([COPROCESSES], [dnl
 295 rm -f pipe-$1; mknod pipe-$1 p
 296 { { $2 nl } <pipe-$1 | { $3 nl } >pipe-$1; } dnl
 297 ])
 298
 299 ## TRIPECTL_INTERACT(ARGS, SHELLSTUFF)
 300 m4_define([TRIPECTL_INTERACT], [
 301   exec 3>&1
 302   COPROCESSES([client], [exec 4>&1 1>&3 $1], [TRIPECTL $2])
 303 ])
 304
 305 ## TRIPECTL_COMMAND(CMD, EXPECT)
 306 m4_define([TRIPECTL_COMMAND], [
 307   AT_CHECK([
 308     m4_if([$1], [!], [:], [echo "$1" >&4])
 309     read line
 310     case "$line" in
 311       "$2") ;;
 312       *) echo 2>&1 "submitted $1: expected $2, found $line"; exit 1 ;;
 313     esac
 314   ])
 315   exec 3>&-
 316 ])
 317
 318 ###--------------------------------------------------------------------------
 319 ### Make sure the thing basically works.
 320
 321 AT_SETUP([server basics])
 322 SETUPDIR([alpha])
 323 AT_CHECK([echo "port" | TRIPE -p54321],, [INFO 54321[]nl[]OK[]nl])
 324 AT_CLEANUP
 325
 326 ###--------------------------------------------------------------------------
 327 ### Challenges.
 328
 329 AT_SETUP([server challenges])
 330 AT_KEYWORDS([chal])
 331 SETUPDIR([alpha])
 332
 333 WITH_TRIPE(, [
 334   ## A simple test.
 335   AT_CHECK([chal=$(TRIPECTL GETCHAL); TRIPECTL checkchal $chal])
 336
 337   ## A wrong challenge.  (This was valid once, but the probablity that the
 338   ## server chose the same key is negligible.)
 339   AT_CHECK([TRIPECTL checkchal AAAAAHyoOL+HMaE0Y9B3ivuszt0], [1],,
 340            [tripectl: invalid-challenge[]nl])
 341   echo "WARN CHAL incorrect-tag" >>expected-server-output
 342
 343   ## A duplicated challenge.
 344   AT_CHECK([
 345     chal=$(TRIPECTL GETCHAL)
 346     TRIPECTL CHECKCHAL $chal
 347     TRIPECTL CHECKCHAL $chal
 348   ], [1],, [tripectl: invalid-challenge[]nl])
 349   echo "WARN CHAL replay duplicated-sequence" >>expected-server-output
 350
 351   ## Out-of-order reception.  There should be a window of 32 challenges; we
 352   ## make 33 and check them in a strange order.
 353   rm -f experr
 354   echo "tripectl: invalid-challenge" >>experr
 355   echo "WARN CHAL replay old-sequence" >>expected-server-output
 356   for i in P32; do
 357     echo "tripectl: invalid-challenge" >>experr
 358     echo "WARN CHAL replay duplicated-sequence" >>expected-server-output
 359   done
 360   AT_CHECK([
 361
 362     ## Make the challenges.
 363     for i in old R32; do TRIPECTL GETCHAL >chal-$i || exit 2; done
 364
 365     ## Now check them back.
 366     for i in P32; do TRIPECTL CHECKCHAL $(cat chal-$i) || exit 3; done
 367
 368     ## Check the one which should have fallen off the front.
 369     TRIPECTL CHECKCHAL $(cat chal-old) && exit 4
 370
 371     ## And make sure that the others are now considered duplicates.
 372     for i in R32; do TRIPECTL CHECKCHAL $(cat chal-$i) && exit 5; done
 373
 374     ## All done: tidy cruft away.
 375     rm -f chal-*
 376     exit 0
 377   ], [0],, [experr])
 378 ])
 379
 380 AT_CLEANUP
 381
 382 ###--------------------------------------------------------------------------
 383 ### Communication.
 384
 385 AT_SETUP([server communication])
 386 AT_KEYWORDS([comm])
 387 export TRIPE_SLIPIF=USLIP
 388
 389 for k in alpha beta-new; do
 390   for p in alice bob; do (
 391     rm -rf $p; mkdir $p; cd $p; SETUPDIR([$k])
 392   ); done
 393   WITH_2TRIPES([alice], [bob], [-nslip], [-talice], [-tbob], [
 394     ESTABLISH([alice], [not-alice], [-key alice],
 395               [bob], [bob], [])
 396   ])
 397   for p in alice bob; do rm -rf $p.$k; mv $p $p.$k; done
 398 done
 399
 400 AT_CLEANUP
 401
 402 ###--------------------------------------------------------------------------
 403 ### Mobile peer tracking.
 404
 405 AT_SETUP([peer tracking])
 406 AT_KEYWORDS([mobile])
 407 export TRIPE_SLIPIF=USLIP
 408
 409 for p in alice bob carol; do (mkdir $p; cd $p; SETUPDIR([alpha])); done
 410
 411 ## WITH_MITM(adir, aport, bdir, bport, body)
 412 m4_define([WITH_MITM], [
 413   aspec="$2" bspec="$4"
 414   case $aspec in =*) aport="?$1/$3.mitm" ;; *) aport=$aspec ;; esac
 415   case $bspec in =*) bport="?$3/$1.mitm" ;; *) bport=$bspec ;; esac
 416   MITM -k$1/keyring.pub \
 417         peer:$1:$aport:127.0.0.1:$(cat $1/port) \
 418         peer:$3:$bport:127.0.0.1:$(cat $3/port) \
 419         filt:send& mitmpid_$1_$3=$!
 420   SLEEP
 421   case $aspec in =*) aport=$(cat ${aport#\?}); eval ${aspec#=}=\$aport ;; esac
 422   case $bspec in =*) bport=$(cat ${bport#\?}); eval ${bspec#=}=\$bport ;; esac
 423   echo >&2 "mitm: $1 <--> :$aport <-mitm-> :$bport <--> $3"
 424   trap 'kill $mitmpid_$1_$3; exit 127' EXIT INT QUIT TERM HUP
 425   SLEEP
 426   $5
 427   kill $mitmpid_$1_$3; trap - EXIT INT QUIT TERM HUP
 428 ])
 429
 430 WITH_3TRIPES([alice], [bob], [carol], [-nslip],
 431              [-talice], [-tbob], [-tcarol], [
 432
 433   ## We need an indirection layer between the two peers so that we can
 434   ## simulate the effects of NAT remapping.  The nearest thing we have to
 435   ## this is the mitm proxy, so we may as well use that.
 436   ##
 437   ## alice <--> :5311 <-mitm-> :5312 <--> bob
 438   ## alice <--> :5321 <-mitm-> :5322 <--> carol
 439
 440   WITH_MITM([alice], [=bob_from_alice], [bob], [=alice_from_bob], [
 441     ESTABLISH([alice], [alice], [],
 442               [bob], [bob], [-mobile],
 443               [$alice_from_bob], [$bob_from_alice])
 444   ])
 445
 446   WITH_MITM([alice], [=new_bob_from_alice], [bob], [$alice_from_bob], [
 447     COMMS_EPING([bob], [bob], [alice], [alice])
 448     COMMS_SLIP([bob], [bob], [alice], [alice])
 449   ])
 450
 451   WITH_MITM([alice], [=carol_from_alice], [carol], [=alice_from_carol], [
 452     ESTABLISH([alice], [alice], [],
 453               [carol], [carol], [-mobile],
 454               [$alice_from_carol], [$carol_from_alice])
 455   ])
 456
 457   WITH_MITM([alice], [$bob_from_alice], [bob], [$alice_from_bob], [
 458   WITH_MITM([alice], [$carol_from_alice], [carol], [$alice_from_carol], [
 459     COMMS_EPING([bob], [bob], [alice], [alice])
 460     COMMS_EPING([carol], [carol], [alice], [alice])
 461     COMMS_SLIP([bob], [bob], [alice], [alice])
 462     COMMS_SLIP([carol], [carol], [alice], [alice])
 463   ])])
 464
 465   WITH_MITM([alice], [$carol_from_alice], [bob], [$alice_from_bob], [
 466   WITH_MITM([alice], [$bob_from_alice], [carol], [$alice_from_carol], [
 467     COMMS_EPING([bob], [bob], [alice], [alice])
 468     COMMS_EPING([carol], [carol], [alice], [alice])
 469     COMMS_SLIP([bob], [bob], [alice], [alice])
 470     COMMS_SLIP([carol], [carol], [alice], [alice])
 471   ])])
 472   wait
 473 ])
 474
 475 AT_CLEANUP
 476
 477 ###--------------------------------------------------------------------------
 478 ### Adverse communication.
 479
 480 AT_SETUP([server retry])
 481 AT_KEYWORDS([backoff])
 482 export TRIPE_SLIPIF=USLIP
 483
 484 for i in alice bob; do (mkdir $i; cd $i; SETUPDIR([beta])); done
 485
 486 WITH_2TRIPES([alice], [bob], [-nslip], [-talice], [-tbob], [
 487
 488   ## Set up the evil proxy.
 489   mknod pipe-mitmpid p
 490   WITH_STRACE([mitm],
 491               [sh -c 'echo $$ >pipe-mitmpid; exec "$@"' - \
 492                MITM -kalice/keyring.pub >mitm.out 2>mitm.err \
 493                  peer:alice:\?alice.mitm:127.0.0.1:$(cat alice/port) \
 494                  peer:bob:\?bob.mitm:127.0.0.1:$(cat bob/port) \
 495                  filt:drop:5 filt:send])&
 496   read mitmpid <pipe-mitmpid
 497   SLEEP
 498   alicemitm=$(cat alice.mitm) bobmitm=$(cat bob.mitm)
 499   trap 'kill $mitmpid; exit 127' EXIT INT QUIT TERM HUP
 500   exec 3>&-
 501
 502   ## Try to establish keys anyway.
 503   AWAIT_KXDONE([alice], [alice], [bob], [bob], [
 504     AT_CHECK([TRIPECTL -dalice ADD -cork bob   INET 127.0.0.1 $alicemitm])
 505     AT_CHECK([TRIPECTL -dbob   ADD       alice INET 127.0.0.1 $bobmitm])
 506   ])
 507
 508   ## Check pinging.
 509   COMMS_EPING([alice], [alice], [bob], [bob], [10])
 510   COMMS_EPING([bob], [bob], [alice], [alice], [10])
 511
 512   ## Tear down the MITM proxy.
 513   kill $mitmpid
 514 ])
 515
 516 AT_CLEANUP
 517
 518 ###--------------------------------------------------------------------------
 519 ### Key management.
 520
 521 AT_SETUP([server key-management])
 522 AT_KEYWORDS([keymgmt])
 523 export TRIPE_SLIPIF=USLIP
 524
 525 ## Determine all of the nets and the principals.
 526 princs=""
 527 nets=" "
 528 while read princ pnets; do
 529   princs="$princs $princ"
 530   for n in $pnets; do
 531     case " $nets " in *" $n "*) ;; *) nets="$nets$n " ;; esac
 532   done
 533 done <<PRINC
 534 alice   alpha   beta
 535 bob     alpha   beta
 536 carol   beta
 537 PRINC
 538
 539 ## Build the master keyring.  All key tags here are of the form PRINC/NET.
 540 for n in $nets; do
 541   key -k$abs_top_srcdir/t/keyring-$n extract keyring-$n $princs
 542   for p in $princs; do key -kkeyring-$n tag $p $p/$n; done
 543   key merge keyring-$n
 544   rm keyring-$n
 545 done
 546 key extract -f-secret keyring.pub
 547
 548 ## Set up the principals' directories.
 549 for p in $princs; do
 550   mkdir $p
 551   cp keyring keyring.pub $p/
 552 done
 553
 554 WITH_3TRIPES([alice], [bob], [carol], [-nslip -Tmx],
 555         [-talice/alpha], [-tbob/alpha], [-tcarol/beta], [
 556
 557   ## Establish this little merry-go-round.
 558   ESTABLISH([alice], [alice], [-key alice/alpha],
 559         [bob], [bob], [-key bob/alpha])
 560   ESTABLISH([alice], [alice], [-key alice/beta],
 561         [carol], [carol], [-priv alice/beta -key carol/beta])
 562   ESTABLISH([bob], [bob], [-key bob/beta],
 563         [carol], [carol], [-priv bob/beta -key carol/beta])
 564
 565   ## Tweak Bob's alpha key.
 566   for p in $princs; do
 567     TRIPECTL -d$p WARN test COMMENT tweak bob/alpha
 568   done
 569
 570   key -k$abs_top_srcdir/t/keyring-alpha extract keyring-bob-new bob-new
 571   key merge keyring-bob-new
 572   key tag -r bob-new bob/alpha
 573   key extract -f-secret keyring.pub
 574   for p in alice bob; do cp keyring keyring.pub $p/; done
 575
 576   ## Kick the peers to see whether they update.
 577   AWAIT_KXDONE([alice], [alice], [bob], [bob], [
 578     TRIPECTL -dalice RELOAD
 579     TRIPECTL -dbob RELOAD
 580     TRIPECTL -dalice FORCEKX bob
 581     TRIPECTL -dbob FORCEKX alice
 582   ])
 583
 584   COMMS_EPING([alice], [alice], [bob], [bob])
 585   COMMS_EPING([bob], [bob], [alice], [alice])
 586
 587   ## Update the beta ring.
 588   key merge $abs_top_srcdir/t/keyring-beta-new
 589   for p in $princs; do key tag -r $p $p/beta; done
 590   key extract -f-secret keyring.pub
 591
 592   ## Update alice's and carol's private keys, bob's public.  This should be
 593   ## insufficient for them to switch, but the results could be interesting.
 594   for p in $princs; do
 595     TRIPECTL -d$p WARN test COMMENT tweak beta step 1
 596   done
 597
 598   for p in alice carol; do cp keyring $p/; done
 599   cp keyring.pub bob/
 600   for p in $princs; do TRIPECTL -d$p RELOAD; done
 601
 602   AT_DATA([algs-alpha], [dnl
 603 kx-group=curve25519 kx-group-order-bits=252 kx-group-elt-bits=255
 604 hash=sha256 mgf=sha256-mgf hash-sz=32
 605 bulk-transform=naclbox bulk-overhead=20
 606 cipher=chacha20 cipher-keysz=32
 607 mac=poly1305 mac-tagsz=16
 608 cipher-data-limit=2147483648
 609 ])
 610
 611   AT_DATA([algs-beta-old], [dnl
 612 kx-group=prime kx-group-order-bits=160 kx-group-elt-bits=1023
 613 hash=rmd160 mgf=rmd160-mgf hash-sz=20
 614 bulk-transform=v0 bulk-overhead=22
 615 cipher=blowfish-cbc cipher-keysz=20 cipher-blksz=8
 616 mac=rmd160-hmac mac-keysz=20 mac-tagsz=10
 617 cipher-data-limit=67108864
 618 ])
 619
 620   AT_DATA([algs-beta-new], [dnl
 621 kx-group=ec kx-group-order-bits=161 kx-group-elt-bits=320
 622 hash=rmd160 mgf=rmd160-mgf hash-sz=20
 623 bulk-transform=iiv bulk-overhead=14
 624 cipher=blowfish-cbc cipher-keysz=20 cipher-blksz=8
 625 mac=rmd160-hmac mac-keysz=20 mac-tagsz=10
 626 blkc=blowfish blkc-keysz=20 blkc-blksz=8
 627 cipher-data-limit=67108864
 628 ])
 629
 630   cp algs-alpha expout;    AT_CHECK([TRIPECTL -dalice ALGS],,       [expout])
 631   cp algs-beta-old expout; AT_CHECK([TRIPECTL -dalice ALGS carol],, [expout])
 632   cp algs-beta-old expout; AT_CHECK([TRIPECTL -dbob   ALGS carol],, [expout])
 633   cp algs-beta-new expout; AT_CHECK([TRIPECTL -dcarol ALGS],,       [expout])
 634   cp algs-beta-old expout; AT_CHECK([TRIPECTL -dcarol ALGS alice],, [expout])
 635
 636   ## Now copy the full keys.  We expect this to provoke key exchange.
 637   for p in $princs; do
 638     TRIPECTL -d$p WARN test COMMENT tweak beta step 2
 639   done
 640
 641   for p in $princs; do cp keyring keyring.pub $p/; done
 642
 643   AWAIT_KXDONE([alice], [alice], [carol], [carol], [
 644     TRIPECTL -dalice RELOAD
 645     AWAIT_KXDONE([bob], [bob], [carol], [carol], [
 646       TRIPECTL -dbob RELOAD
 647       TRIPECTL -dcarol RELOAD
 648     ])
 649   ])
 650
 651   cp algs-alpha expout;    AT_CHECK([TRIPECTL -dalice ALGS],,       [expout])
 652   cp algs-beta-new expout; AT_CHECK([TRIPECTL -dalice ALGS carol],, [expout])
 653   cp algs-beta-new expout; AT_CHECK([TRIPECTL -dbob   ALGS carol],, [expout])
 654   cp algs-beta-new expout; AT_CHECK([TRIPECTL -dcarol ALGS],,       [expout])
 655 ])
 656
 657 AT_CLEANUP
 658
 659 ###--------------------------------------------------------------------------
 660 ### Services.
 661
 662 AT_SETUP([server services])
 663 AT_KEYWORDS([svc])
 664 SETUPDIR([alpha])
 665
 666 WITH_TRIPE(, [
 667
 668   ## Make sure it's not running yet.
 669   AT_CHECK([TRIPECTL SVCENSURE test], [1],,
 670            [tripectl: unknown-service test[]nl])
 671
 672   ## Run a simple service.
 673   rm -f svc-test-running tripectl-status
 674   COPROCESSES([svc], [
 675     echo "SVCCLAIM test 1.0.0"
 676     read line
 677     case "$line" in
 678       OK)
 679         ;;
 680       *)
 681         echo >&2 "SVCCLAIM failed: $line"
 682         exit 1
 683         ;;
 684     esac
 685     echo "ok" >svc-test-running
 686     while read line; do
 687       set -- $line
 688       case "$[]1,$[]3,$[]4" in
 689         SVCJOB,test,HELP)
 690           echo "SVCINFO try not to use this service for anything useful"
 691           echo "SVCOK $[]2"
 692           ;;
 693         SVCJOB,test,GOOD)
 694           echo "SVCOK $[]2"
 695           ;;
 696         SVCJOB,test,BAD)
 697           echo "SVCFAIL $[]2 this-command-always-fails"
 698           ;;
 699         SVCJOB,test,UGLY)
 700           tag=$2
 701           while read line; do
 702             set -- $line
 703             case "$[]1,$[]2,$[]3,$[]4" in
 704               SVCCANCEL,$tag,,) break ;;
 705               SVCJOB,*,test,ESCAPE)
 706                 echo >&2 "attempt to escape from alkatraz"
 707                 exit 1
 708                 ;;
 709             esac
 710           done
 711           ;;
 712         SVCJOB,test,FIRST)
 713           firsttag=$[]2
 714           ;;
 715         SVCJOB,test,SECOND)
 716           echo "SVCOK $firsttag"
 717           echo "SVCOK $[]2"
 718           ;;
 719         SVCJOB,*)
 720           echo "SVCFAIL $[]2 unknown-svc-command $[]4"
 721           ;;
 722         SVCCLAIM,*)
 723           break
 724           ;;
 725         OK,* | INFO,*)
 726           ;;
 727         FAIL,*)
 728           echo "failure in service: $line" >&2
 729           ;;
 730       esac
 731     done
 732   ], [
 733     TRIPECTL; echo $? >tripectl-status
 734   ]) 2>tripectl-errors &
 735
 736   ## Wait until it starts up.
 737   while test ! -r svc-test-running && test ! -r tripectl-status; do :; done
 738
 739   ## Make sure it's running.
 740   AT_CHECK([TRIPECTL SVCQUERY test],, [name=test version=1.0.0[]nl])
 741
 742   ## Try some simple commands.
 743   AT_CHECK([TRIPECTL SVCSUBMIT test GOOD])
 744   AT_CHECK([TRIPECTL SVCSUBMIT test BAD], [1],,
 745            [tripectl: this-command-always-fails[]nl])
 746
 747   ## And now with commands in the background.
 748   TRIPECTL_INTERACT([
 749     TRIPECTL_COMMAND([SVCSUBMIT test GOOD], [OK])
 750     TRIPECTL_COMMAND([SVCSUBMIT -background foo test UGLY], [BGDETACH foo])
 751     TRIPECTL_COMMAND([BGCANCEL foo], [OK])
 752     TRIPECTL_COMMAND([SVCSUBMIT test ESCAPE],
 753                      [FAIL unknown-svc-command ESCAPE])
 754   ])
 755
 756   ## Out-of-order completion.
 757   TRIPECTL_INTERACT([
 758     TRIPECTL_COMMAND([SVCSUBMIT -background one test FIRST], [BGDETACH one])
 759     TRIPECTL_COMMAND([SVCSUBMIT -background two test SECOND], [BGDETACH two])
 760     TRIPECTL_COMMAND([!], [BGOK one])
 761     TRIPECTL_COMMAND([!], [BGOK two])
 762   ])
 763
 764   ## All done.
 765   exit 0
 766 ])
 767
 768 AT_CLEANUP
 769
 770 ###--------------------------------------------------------------------------
 771 ### Knock and bye.
 772
 773 AT_SETUP([server knock])
 774 AT_KEYWORDS([knock])
 775 export TRIPE_SLIPIF=USLIP
 776
 777 for i in alice bob; do (mkdir $i; cd $i; SETUPDIR([gamma])); done
 778
 779 WITH_2TRIPES([alice], [bob], [-nslip], [-talice], [-tbob], [
 780   WITH_MITM([alice], [=bob_from_alice], [bob], [=alice_from_bob], [
 781
 782     COPROCESSES([wait-knock], [
 783       echo WATCH +n
 784       while read line; do
 785         set x $line; shift
 786         echo >&2 ">>> $line"
 787         case "$1:$2:$3" in
 788           OK::) ;;
 789           NOTE:KNOCK:bob) shift 3; echo "$*" >knock-addr; break ;;
 790           NOTE:* | TRACE:* | WARN:*) ;;
 791           *) exit 63 ;;
 792         esac
 793       done
 794     ], [
 795       TRIPECTL -dalice
 796     ])& waiter=$!
 797
 798     AT_CHECK([TRIPECTL -dbob ADD -knock bob -ephemeral alice INET 127.0.0.1 $alice_from_bob])
 799
 800     wait $waiter; waitrc=$?
 801     AT_CHECK([echo $waitrc],, [0[]nl])
 802     AT_CHECK_UNQUOTED([cat knock-addr],, [INET 127.0.0.1 $bob_from_alice[]nl])
 803
 804     AWAIT_KXDONE([alice], [alice], [bob], [bob], [
 805       AT_CHECK([TRIPECTL -dalice ADD -ephemeral bob INET 127.0.0.1 $bob_from_alice])
 806     ])
 807
 808     COMMS_EPING([alice], [alice], [bob], [bob])
 809     COMMS_SLIP([alice], [alice], [bob], [bob])
 810   ])
 811
 812   WITH_MITM([alice], [=new_bob_from_alice], [bob], [$alice_from_bob], [
 813     AWAIT_KXDONE([alice], [alice], [bob], [bob], [
 814       AT_CHECK([TRIPECTL -dalice FORCEKX bob])
 815       AT_CHECK([TRIPECTL -dbob FORCEKX alice])
 816     ])
 817
 818     AT_CHECK([TRIPECTL -dbob KILL alice])
 819     AT_CHECK([TRIPECTL -dalice LIST],, [])
 820   ])
 821 ])
 822
 823 AT_CLEANUP
 824
 825 ###--------------------------------------------------------------------------
 826 ### Key-exchange ad bulk crypto round trip.
 827
 828 AT_SETUP([server roundtrip])
 829 AT_KEYWORDS([roundtrip])
 830
 831 while read label genalg paramalg spec; do
 832   paramopts=${spec%--*} attrs=${spec#*--}
 833   key -kkeyring.$label add -a$paramalg -eforever $paramopts -tparam tripe-param $attrs
 834   key -kkeyring.$label add -a$genalg -pparam -eforever -talice tripe
 835   key -kkeyring.$label extract -f-secret keyring.$label-pub
 836   { sh -c "echo $$"; date; } >msg
 837   AT_CHECK([BULKTEST -kkeyring.$label -talice \
 838     ies-encrypt 99 "$(cat msg)nl"], [0], [stdout], [stderr])
 839   cp msg expout; mv stdout ct
 840   AT_CHECK([BULKTEST -kkeyring.$label -talice \
 841     ies-decrypt 99 "$(cat ct)"], [0], [expout], [stderr])
 842 done <<EOF
 843 vanilla dh dh-param -Ccatacomb-ll-256-3072 --
 844 suite-b ec ec-param -Cnist-p256 -- kx-group=ec bulk=iiv cipher=rijndael-counter hash=sha256
 845 djb x25519 empty -- kx-group=x25519 bulk=naclbox cipher=salsa20
 846 fancy x448 empty -- kx-group=x448 bulk=aead cipher=chacha20-poly1305 hash=shake256 mgf=shake256-xof
 847 weird x25519 empty -- kx-group=x25519 bulk=aead cipher=blowfish-ocb3 hash=sha256 tagsz=48
 848 terrible ec ec-param -Csecp112r1 -- kx-group=ec bulk=aead cipher=des-ccm mac=aead/16
 849 EOF
 850
 851 AT_CLEANUP
 852
 853 ###----- That's all, folks --------------------------------------------------