X-Git-Url: https://git.distorted.org.uk/~mdw/tripe/blobdiff_plain/01c2190311b3eab8e861014d57ddca6160998e69..b87bffcb20069b174b2c03721466abdaafd780f2:/server/tests.at

diff --git a/server/tests.at b/server/tests.at
index ab64c538..7a64cb44 100644
--- a/server/tests.at
+++ b/server/tests.at
@@ -40,6 +40,7 @@ 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
@@ -151,7 +152,7 @@ $3
 	{
 	  for (i = 0; i < npat; i++) {
 	    n = length(pat[[i]]);
-	    if (substr($[]0, 0, n) == pat[[i]])
+	    if (substr($[]0, 1, n) == pat[[i]])
 	      next;
 	  }
 	  print $[]0;
@@ -181,10 +182,24 @@ m4_define([WITH_3TRIPES],
 	  [WITH_TRIPEX([$3], [$4 $7],
 	  [$8])])])])
 
-## COMMS_EPING(adir, aname, bdir, bname)
+## 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([TRIPECTL -d$1 EPING $4],, [ignore])
-  AT_CHECK([TRIPECTL -d$3 EPING $2],, [ignore])
+  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)
@@ -349,12 +364,15 @@ AT_SETUP([server communication])
 AT_KEYWORDS([comm])
 export TRIPE_SLIPIF=USLIP
 
-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], [])
-])
+for k in alpha beta-new; do
+  for p in alice bob; do (
+    rm -rf $p; mkdir $p; cd $p; SETUPDIR([$k])
+  ); done
+  WITH_2TRIPES([alice], [bob], [-nslip], [-talice], [-tbob], [
+    ESTABLISH([alice], [not-alice], [-key alice],
+	      [bob], [bob], [])
+  ])
+done
 
 AT_CLEANUP
 
@@ -424,6 +442,185 @@ WITH_3TRIPES([alice], [bob], [carol], [-nslip],
 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 $mitmtrace
+])
+
+AT_CLEANUP
+
+###--------------------------------------------------------------------------
+### Key management.
+
+AT_SETUP([server key-management])
+AT_KEYWORDS([keymgmt])
+export TRIPE_SLIPIF=USLIP
+
+## Determine all of the nets and the principals.
+princs=""
+nets=" "
+while read princ pnets; do
+  princs="$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])
+
+  ## 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
+bulk-transform=v0 bulk-overhead=22
+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-old], [dnl
+kx-group=prime kx-group-order-bits=160 kx-group-elt-bits=1023
+hash=rmd160 mgf=rmd160-mgf hash-sz=20
+bulk-transform=v0 bulk-overhead=22
+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
+bulk-transform=iiv bulk-overhead=14
+cipher=blowfish-cbc cipher-keysz=20 cipher-blksz=8
+cipher-data-limit=67108864
+mac=rmd160-hmac mac-keysz=20 mac-tagsz=10
+blkc=blowfish blkc-keysz=20 blkc-blksz=8
+])
+
+  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
+
+###--------------------------------------------------------------------------
 ### Services.
 
 AT_SETUP([server services])