diff options
Diffstat (limited to 'regress/rekey.sh')
| -rw-r--r-- | regress/rekey.sh | 118 |
1 files changed, 78 insertions, 40 deletions
diff --git a/regress/rekey.sh b/regress/rekey.sh index 8005a86..3f5e1d5 100644 --- a/regress/rekey.sh +++ b/regress/rekey.sh @@ -1,76 +1,114 @@ -# $OpenBSD: rekey.sh,v 1.20 2024/05/22 04:20:00 djm Exp $ +# $OpenBSD: rekey.sh,v 1.30 2024/08/28 12:08:26 djm Exp $ # Placed in the Public Domain. tid="rekey" LOG=${TEST_SSH_LOGFILE} +COPY2=$OBJ/copy2 rm -f ${LOG} cp $OBJ/sshd_proxy $OBJ/sshd_proxy_bak +echo "Compression no" >> $OBJ/ssh_proxy +echo "RekeyLimit 256k" >> $OBJ/ssh_proxy +echo "KexAlgorithms curve25519-sha256" >> ssh_proxy + # Test rekeying based on data volume only. -# Arguments will be passed to ssh. +# Arguments: rekeylimit, kex method, optional remaining opts are passed to ssh. ssh_data_rekeying() { + _bytes=$1 ; shift _kexopt=$1 ; shift _opts="$@" + if test -z "$_bytes"; then + _bytes=32k + fi if ! test -z "$_kexopt" ; then cp $OBJ/sshd_proxy_bak $OBJ/sshd_proxy echo "$_kexopt" >> $OBJ/sshd_proxy _opts="$_opts -o$_kexopt" fi - rm -f ${COPY} ${LOG} - _opts="$_opts -oCompression=no" - ${SSH} <${DATA} $_opts -v -F $OBJ/ssh_proxy somehost "cat > ${COPY}" + case "$_kexopt" in + MACs=*) + # default chacha20-poly1305 cipher has implicit MAC + _opts="$_opts -oCiphers=aes128-ctr" ;; + esac + trace bytes $_bytes kex $_kexopt opts $_opts + rm -f ${COPY} ${COPY2} ${LOG} + # Create data file just big enough to reach rekey threshold. + dd if=${DATA} of=${COPY} bs=$_bytes count=1 2>/dev/null + ${SSH} <${COPY} $_opts -vv \ + -oRekeyLimit=$_bytes -F $OBJ/ssh_proxy somehost "cat >${COPY2}" if [ $? -ne 0 ]; then fail "ssh failed ($@)" fi - cmp ${DATA} ${COPY} || fail "corrupted copy ($@)" + cmp ${COPY} ${COPY2} || fail "corrupted copy ($@)" n=`grep 'NEWKEYS sent' ${LOG} | wc -l` n=`expr $n - 1` + _want=`echo $_kexopt | cut -f2 -d=` + _got="" + case "$_kexopt" in + KexAlgorithms=*) + _got=`awk '/kex: algorithm: /{print $4}' ${LOG} | \ + tr -d '\r' | sort -u` ;; + Ciphers=*) + _got=`awk '/kex: client->server cipher:/{print $5}' ${LOG} | \ + tr -d '\r' | sort -u` ;; + MACs=*) + _got=`awk '/kex: client->server cipher:/{print $7}' ${LOG} | \ + tr -d '\r' | sort -u` ;; + esac + if [ "$_want" != "$_got" ]; then + fail "unexpected algorithm, want $_want, got $_got" + fi trace "$n rekeying(s)" if [ $n -lt 1 ]; then fail "no rekeying occurred ($@)" fi + cp $OBJ/sshd_proxy_bak $OBJ/sshd_proxy } increase_datafile_size 300 opts="" -for i in `${SSH} -Q kex`; do + +# Filter out duplicate curve algo +kexs=`${SSH} -Q kex | grep -v curve25519-sha256@libssh.org` +ciphers=`${SSH} -Q cipher` +macs=`${SSH} -Q mac` + +for i in $kexs; do opts="$opts KexAlgorithms=$i" done -for i in `${SSH} -Q cipher`; do +for i in $ciphers; do opts="$opts Ciphers=$i" done -for i in `${SSH} -Q mac`; do +for i in $macs; do opts="$opts MACs=$i" done for opt in $opts; do verbose "client rekey $opt" - ssh_data_rekeying "$opt" -oRekeyLimit=256k + if ${SSH} -Q cipher-auth | sed 's/^/Ciphers=/' | \ + grep $opt >/dev/null; then + trace AEAD cipher, testing all KexAlgorithms + for kex in $kexs; do + ssh_data_rekeying "" "KexAlgorithms=$kex" "-o$opt" + done + else + ssh_data_rekeying "" "$opt" + fi done -# AEAD ciphers are magical so test with all KexAlgorithms -if ${SSH} -Q cipher-auth | grep '^.*$' >/dev/null 2>&1 ; then - for c in `${SSH} -Q cipher-auth`; do - for kex in `${SSH} -Q kex`; do - verbose "client rekey $c $kex" - ssh_data_rekeying "KexAlgorithms=$kex" -oRekeyLimit=256k -oCiphers=$c - done - done -fi - for s in 16 1k 128k 256k; do verbose "client rekeylimit ${s}" - ssh_data_rekeying "" -oCompression=no -oRekeyLimit=$s + ssh_data_rekeying "$s" "" done for s in 5 10; do verbose "client rekeylimit default ${s}" rm -f ${COPY} ${LOG} - ${SSH} < ${DATA} -oCompression=no -oRekeyLimit="default $s" -F \ + ${SSH} < ${DATA} -oRekeyLimit="default $s" -F \ $OBJ/ssh_proxy somehost "cat >${COPY};sleep $s;sleep 10" if [ $? -ne 0 ]; then fail "ssh failed" @@ -87,7 +125,7 @@ done for s in 5 10; do verbose "client rekeylimit default ${s} no data" rm -f ${COPY} ${LOG} - ${SSH} -oCompression=no -oRekeyLimit="default $s" -F \ + ${SSH} -oRekeyLimit="default $s" -F \ $OBJ/ssh_proxy somehost "sleep $s;sleep 10" if [ $? -ne 0 ]; then fail "ssh failed" @@ -104,13 +142,13 @@ for s in 16 1k 128k 256k; do verbose "server rekeylimit ${s}" cp $OBJ/sshd_proxy_bak $OBJ/sshd_proxy echo "rekeylimit ${s}" >>$OBJ/sshd_proxy - rm -f ${COPY} ${LOG} - ${SSH} -oCompression=no -F $OBJ/ssh_proxy somehost "cat ${DATA}" \ - > ${COPY} + rm -f ${COPY} ${COPY2} ${LOG} + dd if=${DATA} of=${COPY} bs=$s count=1 2>/dev/null + ${SSH} -F $OBJ/ssh_proxy somehost "cat ${COPY}" >${COPY2} if [ $? -ne 0 ]; then fail "ssh failed" fi - cmp ${DATA} ${COPY} || fail "corrupted copy" + cmp ${COPY} ${COPY2} || fail "corrupted copy" n=`grep 'NEWKEYS sent' ${LOG} | wc -l` n=`expr $n - 1` trace "$n rekeying(s)" @@ -124,7 +162,7 @@ for s in 5 10; do cp $OBJ/sshd_proxy_bak $OBJ/sshd_proxy echo "rekeylimit default ${s}" >>$OBJ/sshd_proxy rm -f ${COPY} ${LOG} - ${SSH} -oCompression=no -F $OBJ/ssh_proxy somehost "sleep $s;sleep 10" + ${SSH} -F $OBJ/ssh_proxy somehost "sleep $s;sleep 10" if [ $? -ne 0 ]; then fail "ssh failed" fi @@ -136,9 +174,8 @@ for s in 5 10; do fi done -verbose "rekeylimit parsing" +verbose "rekeylimit parsing: bytes" for size in 16 1k 1K 1m 1M 1g 1G 4G 8G; do - for time in 1 1m 1M 1h 1H 1d 1D 1w 1W; do case $size in 16) bytes=16 ;; 1k|1K) bytes=1024 ;; @@ -147,6 +184,15 @@ for size in 16 1k 1K 1m 1M 1g 1G 4G 8G; do 4g|4G) bytes=4294967296 ;; 8g|8G) bytes=8589934592 ;; esac + b=`${SSH} -G -o "rekeylimit $size" -F $OBJ/ssh_proxy host | \ + awk '/rekeylimit/{print $2}'` + if [ "$bytes" != "$b" ]; then + fatal "rekeylimit size: expected $bytes bytes got $b" + fi +done + +verbose "rekeylimit parsing: time" +for time in 1 1m 1M 1h 1H 1d 1D 1w 1W; do case $time in 1) seconds=1 ;; 1m|1M) seconds=60 ;; @@ -154,19 +200,11 @@ for size in 16 1k 1K 1m 1M 1g 1G 4G 8G; do 1d|1D) seconds=86400 ;; 1w|1W) seconds=604800 ;; esac - - b=`$SUDO ${SSHD} -T -o "rekeylimit $size $time" -f $OBJ/sshd_proxy | \ - awk '/rekeylimit/{print $2}'` - s=`$SUDO ${SSHD} -T -o "rekeylimit $size $time" -f $OBJ/sshd_proxy | \ + s=`${SSH} -G -o "rekeylimit default $time" -F $OBJ/ssh_proxy host | \ awk '/rekeylimit/{print $3}'` - - if [ "$bytes" != "$b" ]; then - fatal "rekeylimit size: expected $bytes bytes got $b" - fi if [ "$seconds" != "$s" ]; then fatal "rekeylimit time: expected $time seconds got $s" fi - done done -rm -f ${COPY} ${DATA} +rm -f ${COPY} ${COPY2} ${DATA} |