## Running standard programs with useful options.
m4_define([TRIPE],
- [$abs_top_builddir/server/tripe -F -d. -aadmin -p0 -b127.0.0.1 -talice])
+ [env TRIPE_PRIVHELPER=$abs_top_builddir/priv/tripe-privhelper \
+ $abs_top_builddir/server/tripe -F -d. -aadmin -p0 -b127.0.0.1 -talice])
m4_define([TRIPECTL], [$abs_top_builddir/client/tripectl -d. -aadmin])
m4_define([USLIP], [$abs_top_builddir/uslip/tripe-uslip])
+m4_define([PKSTREAM],
+ [$abs_top_builddir/pkstream/pkstream -b127.0.0.1 -p127.0.0.1])
+m4_define([MITM], [$abs_top_builddir/proxy/tripe-mitm])
## Sequences. (These are used for testing the replay protection machinery.)
m4_define([R32], [ 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 dnl
###--------------------------------------------------------------------------
### Scaffolding for running a TrIPE server.
+## WITH_TRIPEX(dir, args, body)
m4_define([WITH_TRIPEX], [
+## If this directory doesn't exist then Bad Things will happen.
+if test ! -d $1; then
+ echo >&2 "server directory \`$1' doesn't exist"
+ exit 99
+fi
+
## Remove the status file. This is how we notice that the server's died.
rm -f $1/server-status
> $1/expected-server-output
> $1/expected-server-errors
-## Keep Autotest writes crap to standard output, which we don't want going to
-## the server. So keep a copy of the standard output, do the pipe, and
-## recover the old stdout inside the group.
+## Autotest writes crap to standard output, which we don't want going to the
+## server. So keep a copy of the standard output, do the pipe, and recover
+## the old stdout inside the group.
exec 3>&1
{ (
exec 1>&3 3>&-
## Wait for the socket to appear. Watch for the server crashing during
## initialization. Busy waiting is evil, but it's the best I can do and
## not sleep for ages. (Yes, a second on each test group is a long time.)
-while test ! -r $1//server-status && test ! -S $1/admin; do :; done
+while test ! -r $1/server-status && test ! -S $1/admin; do :; done
+
+## Make the port number availale.
+AT_CHECK([TRIPECTL -d$1 PORT],, [stdout])
+mv stdout $1/port
## Test body...
$3
-## End of the test, now run the server.
+## End of the test, now run the server. There's an awful hack here. If a
+## process running under strace exits with a signal, then strace will kill
+## itself with the same signal -- and therefore clobber the original
+## process's core file. So we arrange to run strace in one directory and
+## have the child process run in another.
) && :; } | {
cd $1
+ mkdir -p strace-hack/
echo TRIPE $2 >&2
- strace -f -o tripe.trace TRIPE $2 >server-output 2>server-errors
+ (cd strace-hack/
+ ulimit -c hard >/dev/null 2>&1
+ strace -f -o ../tripe.trace \
+ TRIPE -d.. $2 >../server-output.full 2>../server-errors)
stat=$?
echo $stat >server-status
if test $stat -ne 0; then
echo "exit status: $stat" >>server-errors
fi
+
+ ## We interrupt this relatively sensible macro for an especially awful
+ ## hack. The tripe server emits warnings which are often caused by lack of
+ ## synchronization between two peers. These are harmless and shouldn't
+ ## cause test failures. But we shouldn't just trim out all messages that
+ ## look like the spurious ones: if they appear when we're not expecting
+ ## them, that's bad and they should properly cause a test failure.
+ ##
+ ## So we use the WARN command to insert magic directives into the server's
+ ## message stream. The directives begin with `WARN USER test'; remaining
+ ## tokens may be as follows.
+ ##
+ ## PUSH Introduce a new layer of nesting. Settings between
+ ## this PUSH and the matching POP will be forgotten
+ ## following the POP.
+ ##
+ ## POP End a layer of nesting. See PUSH above.
+ ##
+ ## IGNORE tokens Ignore lines which begin with the tokens.
+ ##
+ ## Token comparison isn't done very well, but it's good enough for these
+ ## purposes.
+ ##
+ ## We also trim out trace lines here, since it's useful to produce them for
+ ## debugging purposes and changing or introducing more of them shouldn't
+ ## cause failures.
+ awk '
+ BEGIN {
+ sp = 0;
+ npat = 0;
+ }
+ $[]1 == "TRACE" { next; }
+ $[]1 == "WARN" && $[]2 == "USER" && $[]3 == "test" {
+ if ($[]4 == "PUSH")
+ npatstk[[sp++]] = npat;
+ else if ($[]4 == "IGNORE") {
+ s = "";
+ p = "";
+ for (i = 5; i <= NF; i++) {
+ p = p s $[]i;
+ s = " ";
+ }
+ pat[[npat++]] = p;
+ } else if ($[]4 == "POP")
+ npat = npatstk[[--sp]];
+ next;
+ }
+ {
+ for (i = 0; i < npat; i++) {
+ n = length(pat[[i]]);
+ if (substr($[]0, 0, n) == pat[[i]])
+ next;
+ }
+ print $[]0;
+ }
+ ' server-output.full >server-output
}
exec 3>&-
[expout], [experr])
])
+## WITH_TRIPE(args, body)
m4_define([WITH_TRIPE], [WITH_TRIPEX([.], [$1], [$2])])
+## WITH_2TRIPES(adir, bdir, bothargs, aargs, bargs, body)
m4_define([WITH_2TRIPES],
[WITH_TRIPEX([$1], [$3 $4], [WITH_TRIPEX([$2], [$3 $5], [$6])])])
+## WITH_3TRIPES(adir, bdir, cdir, allargs, aargs, bargs, cargs, body)
+m4_define([WITH_3TRIPES],
+ [WITH_TRIPEX([$1], [$4 $5],
+ [WITH_TRIPEX([$2], [$4 $6],
+ [WITH_TRIPEX([$3], [$4 $7],
+ [$8])])])])
+
+## RETRY(n, body)
+m4_define([RETRY], [
+ n=0 rc=1
+ while test $n -lt $1; do
+ if $2
+ then rc=0; break
+ fi
+ n=$(( $n + 1 ))
+ done
+ exit $rc
+])
+
+## COMMS_EPING(adir, aname, bdir, bname, [n])
+m4_define([COMMS_EPING], [
+ AT_CHECK([RETRY([m4_default([$5], [1])],
+ [TRIPECTL -d$1 EPING $4])],, [ignore])
+ AT_CHECK([RETRY([m4_default([$5], [1])],
+ [TRIPECTL -d$3 EPING $2])],, [ignore])
+])
+
+## COMMS_SLIP(adir, aname, bdir, bname)
+m4_define([COMMS_SLIP], [
+ AT_CHECK([echo "from $1" | USLIP -p $1/$4])
+ AT_CHECK([USLIP -g $3/$2],, [from $1[]nl])
+ AT_CHECK([echo "from $3" | USLIP -p $3/$2])
+ AT_CHECK([USLIP -g $1/$4],, [from $3[]nl])
+])
+
+## AWAIT_KXDONE(adir, aname, bdir, bname, body)
+m4_define([AWAIT_KXDONE], [
+
+ ## Ignore some reports caused by races.
+ TRIPECTL -d$3 WARN test PUSH
+ TRIPECTL -d$3 WARN test IGNORE WARN KX $2 incorrect cookie
+ TRIPECTL -d$3 WARN test IGNORE WARN KX $2 unexpected pre-challenge
+
+ ## Watch for the key-exchange completion announcement in the background.
+ COPROCESSES([wait-$1], [
+ echo WATCH +n
+ while read line; do
+ set x $line; shift
+ echo >&2 ">>> $line"
+ case "$[]1:$[]2:$[]3" in
+ OK::) ;;
+ NOTE:KXDONE:$4) break ;;
+ NOTE:*) ;;
+ *) exit 63 ;;
+ esac
+ done
+ ], [
+ TRIPECTL -d$1
+ ]) & waiter_$1=$!
+
+ $5
+
+ ## Collect the completion announcement.
+ wait $waiter_$1; waitrc=$?
+ AT_CHECK([echo $waitrc],, [0[]nl])
+
+ ## Be interested in key-exchange warnings again.
+ TRIPECTL -d$4 WARN test POP
+])
+
+## ESTABLISH(adir, aname, aopts, bdir, bname, bopts, [aport], [bport])
+m4_define([ESTABLISH], [
+
+ ## Set up the establishment.
+ AWAIT_KXDONE([$1], [$2], [$4], [$5], [
+ AT_CHECK([TRIPECTL -d$1 ADD -cork $6 $5 INET 127.0.0.1 \
+ m4_if([$8], [], [$(cat $4/port)], [$8])])
+ AT_CHECK([TRIPECTL -d$4 ADD $3 $2 INET 127.0.0.1 \
+ m4_if([$7], [], [$(cat $1/port)], [$7])])
+ ])
+
+ ## Check transport pinging.
+ AT_CHECK([TRIPECTL -d$1 PING $5],, [ignore])
+ AT_CHECK([TRIPECTL -d$4 PING $2],, [ignore])
+
+ ## Check communication works.
+ COMMS_EPING([$1], [$2], [$4], [$5])
+ COMMS_SLIP([$1], [$2], [$4], [$5])
+])
+
###--------------------------------------------------------------------------
### Very unpleasant coprocess handling.
## TRIPECTL_INTERACT(ARGS, SHELLSTUFF)
m4_define([TRIPECTL_INTERACT], [
- exec 3<&1
- COPROCESSES([client], [exec 4>&1 1>&3 $2], [TRIPECTL $1])
+ exec 3>&1
+ COPROCESSES([client], [exec 4>&1 1>&3 $1], [TRIPECTL $2])
])
## TRIPECTL_COMMAND(CMD, EXPECT)
### Make sure the thing basically works.
AT_SETUP([server basics])
-SETUPDIR([ec])
+SETUPDIR([alpha])
AT_CHECK([echo port | TRIPE -p54321],, [INFO 54321[]nl[]OK[]nl])
AT_CLEANUP
AT_SETUP([server challenges])
AT_KEYWORDS([chal])
-SETUPDIR([ec])
+SETUPDIR([alpha])
WITH_TRIPE(, [
## A simple test.
AT_KEYWORDS([comm])
export TRIPE_SLIPIF=USLIP
-for i in alice bob; do (mkdir $i; cd $i; SETUPDIR([ec])); done
+for p in alice bob; do (mkdir $p; cd $p; SETUPDIR([alpha])); done
WITH_2TRIPES([alice], [bob], [-nslip], [-talice], [-tbob], [
+ ESTABLISH([alice], [not-alice], [-key alice],
+ [bob], [bob], [])
+])
- AT_CHECK([TRIPECTL -dalice PORT],, [stdout])
- mv stdout alice/port
+AT_CLEANUP
- AT_CHECK([TRIPECTL -dbob PORT],, [stdout])
- mv stdout bob/port
+###--------------------------------------------------------------------------
+### Mobile peer tracking.
- ## Watch for the key-exchange completion announcement, and then exit.
- COPROCESSES([wait], [
- echo WATCH +n
- while read line; do
- case "$line" in
- OK) ;;
- "NOTE KXDONE "*) break ;;
- NOTE*) ;;
- *) exit 63 ;;
- esac
- done
- ], [
- TRIPECTL -dalice
- ]) &
+AT_SETUP([peer tracking])
+AT_KEYWORDS([mobile])
+export TRIPE_SLIPIF=USLIP
- ## Don't panic if you don't see the unexpected-source warning. It happens
- ## for me, but it's not important either way.
- AT_CHECK([TRIPECTL -dalice ADD bob INET 127.0.0.1 $(cat bob/port)])
- echo >>bob/expected-server-output \
- "WARN PEER - unexpected-source INET 127.0.0.1 $(cat alice/port)"
- AT_CHECK([TRIPECTL -dbob ADD alice INET 127.0.0.1 $(cat alice/port)])
+for p in alice bob carol; do (mkdir $p; cd $p; SETUPDIR([alpha])); done
+
+## WITH_PKSTREAM(adir, aport, bdir, bport, body)
+m4_define([WITH_PKSTREAM], [
+ echo >&2 "pkstream: $1 <--> :$2 <-pkstream-> :$4 <--> $3"
+ PKSTREAM -l$4 127.0.0.1:$4 127.0.0.1:$(cat $3/port)& pkstream_$3_$1=$!
+ sleep 1
+ PKSTREAM -c127.0.0.1:$4 127.0.0.1:$2 127.0.0.1:$(cat $1/port)&
+ pkstream_$1_$3=$!
+ set +x
+ $5
+ kill $pkstream_$3_$1 $pkstream_$1_$3
+])
- ## Check transport pinging.
- AT_CHECK([TRIPECTL -dalice PING bob],, [ignore])
- AT_CHECK([TRIPECTL -dbob PING alice],, [ignore])
+WITH_3TRIPES([alice], [bob], [carol], [-nslip],
+ [-talice], [-tbob], [-tcarol], [
+
+ ## We need an indirection layer between the two peers so that we can
+ ## simulate the effects of NAT remapping. The nearest thing we have to
+ ## this is pkstream, so we may as well use that.
+ ##
+ ## alice <--> :5311 <-pkstream-> :5312 <--> bob
+ ## alice <--> :5321 <-pkstream-> :5322 <--> carol
+
+ WITH_PKSTREAM([alice], [5311], [bob], [5312], [
+ ESTABLISH([alice], [alice], [], [bob], [bob], [-mobile], [5312], [5311])
+ ])
+
+ WITH_PKSTREAM([alice], [5319], [bob], [5312], [
+ COMMS_EPING([bob], [bob], [alice], [alice])
+ COMMS_SLIP([bob], [bob], [alice], [alice])
+ ])
- ## Wait for the completion announcement.
+ WITH_PKSTREAM([alice], [5321], [carol], [5322], [
+ ESTABLISH([alice], [alice], [], [carol], [carol], [-mobile],
+ [5322], [5321])
+ ])
+
+ WITH_PKSTREAM([alice], [5311], [bob], [5312], [
+ WITH_PKSTREAM([alice], [5321], [carol], [5322], [
+ COMMS_EPING([bob], [bob], [alice], [alice])
+ COMMS_EPING([carol], [carol], [alice], [alice])
+ COMMS_SLIP([bob], [bob], [alice], [alice])
+ COMMS_SLIP([carol], [carol], [alice], [alice])
+ ])])
+
+ WITH_PKSTREAM([alice], [5321], [bob], [5312], [
+ WITH_PKSTREAM([alice], [5311], [carol], [5322], [
+ COMMS_EPING([bob], [bob], [alice], [alice])
+ COMMS_EPING([carol], [carol], [alice], [alice])
+ COMMS_SLIP([bob], [bob], [alice], [alice])
+ COMMS_SLIP([carol], [carol], [alice], [alice])
+ ])])
wait
+])
+
+AT_CLEANUP
+
+###--------------------------------------------------------------------------
+### Adverse communication.
+
+AT_SETUP([server retry])
+AT_KEYWORDS([backoff])
+export TRIPE_SLIPIF=USLIP
+
+for i in alice bob; do (mkdir $i; cd $i; SETUPDIR([beta])); done
+
+WITH_2TRIPES([alice], [bob], [-nslip], [-talice], [-tbob], [
+
+ ## Set up the evil proxy.
+ alicemitm=24516 bobmitm=14016
+ MITM -kalice/keyring.pub >mitm.out 2>mitm.err \
+ peer:alice:$alicemitm:127.0.0.1:$(cat alice/port) \
+ peer:bob:$bobmitm:127.0.0.1:$(cat bob/port) \
+ filt:drop:5 filt:send& mitmpid=$!
+ strace -omitm.trace -p$mitmpid& mitmtrace=$!
+ trap 'kill $mitmpid $mitmtrace; exit 127' EXIT INT QUIT TERM HUP
+
+ ## Try to establish keys anyway.
+ AWAIT_KXDONE([alice], [alice], [bob], [bob], [
+ AT_CHECK([TRIPECTL -dalice ADD -cork bob INET 127.0.0.1 $alicemitm])
+ AT_CHECK([TRIPECTL -dbob ADD alice INET 127.0.0.1 $bobmitm])
+ ])
+
+ ## Check pinging.
+ COMMS_EPING([alice], [alice], [bob], [bob], [10])
+ COMMS_EPING([bob], [bob], [alice], [alice], [10])
+
+ ## Tear down the MITM proxy.
+ kill $mitmpid
+ wait $mitmpid
+ wait $mitmtrace
+])
+
+AT_CLEANUP
+
+###--------------------------------------------------------------------------
+### Key management.
+
+AT_SETUP([server key-management])
+AT_KEYWORDS([keymgmt])
+export TRIPE_SLIPIF=USLIP
- ## Check encrypted pinging.
- AT_CHECK([TRIPECTL -dalice EPING bob],, [ignore])
- AT_CHECK([TRIPECTL -dbob EPING alice],, [ignore])
+## Determine all of the nets and the principals.
+princs=""
+nets=" "
+while read princ pnets; do
+ princs="$princs $princ"
+ for n in $pnets; do
+ case " $nets " in *" $n "*) ;; *) nets="$nets$n " ;; esac
+ done
+done <<PRINC
+alice alpha beta
+bob alpha beta
+carol beta
+PRINC
+
+## Build the master keyring. All key tags here are of the form PRINC/NET.
+for n in $nets; do
+ key -k$abs_top_srcdir/t/keyring-$n extract keyring-$n $princs
+ for p in $princs; do key -kkeyring-$n tag $p $p/$n; done
+ key merge keyring-$n
+ rm keyring-$n
+done
+key extract -f-secret keyring.pub
+
+## Set up the principals' directories.
+for p in $princs; do
+ mkdir $p
+ cp keyring keyring.pub $p/
+done
+
+WITH_3TRIPES([alice], [bob], [carol], [-nslip -Tmx],
+ [-talice/alpha], [-tbob/alpha], [-tcarol/beta], [
+
+ ## Establish this little merry-go-round.
+ ESTABLISH([alice], [alice], [-key alice/alpha],
+ [bob], [bob], [-key bob/alpha])
+ ESTABLISH([alice], [alice], [-key alice/beta],
+ [carol], [carol], [-priv alice/beta -key carol/beta])
+ ESTABLISH([bob], [bob], [-key bob/beta],
+ [carol], [carol], [-priv bob/beta -key carol/beta])
+
+ ## Tweak Bob's alpha key.
+ for p in $princs; do
+ TRIPECTL -d$p WARN test COMMENT tweak bob/alpha
+ done
+
+ key -k$abs_top_srcdir/t/keyring-alpha extract keyring-bob-new bob-new
+ key merge keyring-bob-new
+ key tag -r bob-new bob/alpha
+ key extract -f-secret keyring.pub
+ for p in alice bob; do cp keyring keyring.pub $p/; done
+
+ ## Kick the peers to see whether they update.
+ AWAIT_KXDONE([alice], [alice], [bob], [bob], [
+ TRIPECTL -dalice RELOAD
+ TRIPECTL -dbob RELOAD
+ TRIPECTL -dalice FORCEKX bob
+ TRIPECTL -dbob FORCEKX alice
+ ])
+
+ COMMS_EPING([alice], [alice], [bob], [bob])
+ COMMS_EPING([bob], [bob], [alice], [alice])
- ## Check that packets can flow from one to the other.
- AT_CHECK([echo "from alice" | USLIP -p alice/bob])
- AT_CHECK([USLIP -g bob/alice],, [from alice[]nl])
+ ## Update the beta ring.
+ key merge $abs_top_srcdir/t/keyring-beta-new
+ for p in $princs; do key tag -r $p $p/beta; done
+ key extract -f-secret keyring.pub
+
+ ## Update alice's and carol's private keys, bob's public. This should be
+ ## insufficient for them to switch, but the results could be interesting.
+ for p in $princs; do
+ TRIPECTL -d$p WARN test COMMENT tweak beta step 1
+ done
+
+ for p in alice carol; do cp keyring $p/; done
+ cp keyring.pub bob/
+ for p in $princs; do TRIPECTL -d$p RELOAD; done
+
+ AT_DATA([algs-alpha], [dnl
+kx-group=ec kx-group-order-bits=256 kx-group-elt-bits=512
+hash=rmd160 mgf=rmd160-mgf hash-sz=20
+cipher=blowfish-cbc cipher-keysz=20 cipher-blksz=8
+cipher-data-limit=67108864
+mac=rmd160-hmac mac-keysz=20 mac-tagsz=10
+])
- AT_CHECK([echo "from bob" | USLIP -p bob/alice])
- AT_CHECK([USLIP -g alice/bob],, [from bob[]nl])
+ AT_DATA([algs-beta-old], [dnl
+kx-group=prime kx-group-order-bits=160 kx-group-elt-bits=1023
+hash=rmd160 mgf=rmd160-mgf hash-sz=20
+cipher=blowfish-cbc cipher-keysz=20 cipher-blksz=8
+cipher-data-limit=67108864
+mac=rmd160-hmac mac-keysz=20 mac-tagsz=10
+])
+
+ AT_DATA([algs-beta-new], [dnl
+kx-group=ec kx-group-order-bits=161 kx-group-elt-bits=320
+hash=rmd160 mgf=rmd160-mgf hash-sz=20
+cipher=blowfish-cbc cipher-keysz=20 cipher-blksz=8
+cipher-data-limit=67108864
+mac=rmd160-hmac mac-keysz=20 mac-tagsz=10
+])
+
+ cp algs-alpha expout; AT_CHECK([TRIPECTL -dalice ALGS],, [expout])
+ cp algs-beta-old expout; AT_CHECK([TRIPECTL -dalice ALGS carol],, [expout])
+ cp algs-beta-old expout; AT_CHECK([TRIPECTL -dbob ALGS carol],, [expout])
+ cp algs-beta-new expout; AT_CHECK([TRIPECTL -dcarol ALGS],, [expout])
+ cp algs-beta-old expout; AT_CHECK([TRIPECTL -dcarol ALGS alice],, [expout])
+
+ ## Now copy the full keys. We expect this to provoke key exchange.
+ for p in $princs; do
+ TRIPECTL -d$p WARN test COMMENT tweak beta step 2
+ done
+
+ for p in $princs; do cp keyring keyring.pub $p/; done
+
+ AWAIT_KXDONE([alice], [alice], [carol], [carol], [
+ TRIPECTL -dalice RELOAD
+ AWAIT_KXDONE([bob], [bob], [carol], [carol], [
+ TRIPECTL -dbob RELOAD
+ TRIPECTL -dcarol RELOAD
+ ])
+ ])
+
+ cp algs-alpha expout; AT_CHECK([TRIPECTL -dalice ALGS],, [expout])
+ cp algs-beta-new expout; AT_CHECK([TRIPECTL -dalice ALGS carol],, [expout])
+ cp algs-beta-new expout; AT_CHECK([TRIPECTL -dbob ALGS carol],, [expout])
+ cp algs-beta-new expout; AT_CHECK([TRIPECTL -dcarol ALGS],, [expout])
])
AT_CLEANUP
AT_SETUP([server services])
AT_KEYWORDS([svc])
-SETUPDIR([ec])
+SETUPDIR([alpha])
WITH_TRIPE(, [
read line
case "$line" in
OK)
- ;;
+ ;;
*)
- echo >&2 "SVCCLAIM failed: $line"
+ echo >&2 "SVCCLAIM failed: $line"
exit 1
;;
esac
case "$[]1,$[]2,$[]3,$[]4" in
SVCCANCEL,$tag,,) break ;;
SVCJOB,*,test,ESCAPE)
- echo >&2 "attempt to escape from alkatraz"
+ echo >&2 "attempt to escape from alkatraz"
exit 1
;;
esac
~mdw / tripe / blobdiff