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|
#!/bin/bash
#
# Test mode compatibility, check input + kernel and cryptsetup cipher status
#
[ -z "$CRYPTSETUP_PATH" ] && CRYPTSETUP_PATH=".."
CRYPTSETUP=$CRYPTSETUP_PATH/cryptsetup
DEV_NAME=dmc_test
HEADER_IMG=mode-test.img
PASSWORD=3xrododenron
PASSWORD1=$PASSWORD
KEY="7c0dc5dfd0c9191381d92e6ebb3b29e7f0dba53b0de132ae23f5726727173540"
FAST_PBKDF2="--pbkdf pbkdf2 --pbkdf-force-iterations 1000"
# cipher-chainmode-ivopts:ivmode
CIPHERS="aes twofish serpent"
MODES="cbc lrw xts"
IVMODES="null benbi plain plain64 essiv:sha256"
LOOPDEV=$(losetup -f 2>/dev/null)
if [ -n "$CRYPTSETUP_TESTS_RUN_IN_MESON" ]; then
CRYPTSETUP_VALGRIND=$CRYPTSETUP
else
CRYPTSETUP_VALGRIND=../.libs/cryptsetup
CRYPTSETUP_LIB_VALGRIND=../.libs
fi
dmremove() { # device
udevadm settle >/dev/null 2>&1
dmsetup remove --retry $1 >/dev/null 2>&1
}
cleanup() {
[ -b /dev/mapper/"$DEV_NAME"_tstdev ] && dmremove "$DEV_NAME"_tstdev
[ -b /dev/mapper/$DEV_NAME ] && dmremove $DEV_NAME
losetup -d $LOOPDEV >/dev/null 2>&1
rm -f $HEADER_IMG >/dev/null 2>&1
}
fail()
{
[ -n "$1" ] && echo "$1"
echo "FAILED backtrace:"
while caller $frame; do ((frame++)); done
cleanup
exit 100
}
skip()
{
[ -n "$1" ] && echo "$1"
exit 77
}
function valgrind_setup()
{
command -v valgrind >/dev/null || fail "Cannot find valgrind."
[ ! -f $CRYPTSETUP_VALGRIND ] && fail "Unable to get location of cryptsetup executable."
[ ! -f valg.sh ] && fail "Unable to get location of valg runner script."
if [ -z "$CRYPTSETUP_TESTS_RUN_IN_MESON" ]; then
export LD_LIBRARY_PATH="$CRYPTSETUP_LIB_VALGRIND:$LD_LIBRARY_PATH"
fi
}
function valgrind_run()
{
INFOSTRING="$(basename ${BASH_SOURCE[1]})-line-${BASH_LINENO[0]}" ./valg.sh ${CRYPTSETUP_VALGRIND} "$@"
}
add_device() {
cleanup
dd if=/dev/zero of=$HEADER_IMG bs=1M count=6 >/dev/null 2>&1
sync
losetup $LOOPDEV $HEADER_IMG >/dev/null 2>&1
dmsetup create $DEV_NAME --table "0 10240 linear $LOOPDEV 8" >/dev/null 2>&1
}
dmcrypt_check() # device outstring
{
X=$(dmsetup table $1 2>/dev/null | sed 's/.*: //' | cut -d' ' -f 4)
if [ "$X" = $2 ] ; then
echo -n "[table OK]"
else
echo "[table FAIL]"
echo " Expecting $2 got $X."
fail
fi
X=$($CRYPTSETUP status $1 | grep cipher: | sed s/\.\*cipher:\\s*//)
if [ $X = $2 ] ; then
echo -n "[status OK]"
else
echo "[status FAIL]"
echo " Expecting $2 got \"$X\"."
fail
fi
dmremove $1
}
dmcrypt_check_sum() # cipher device
{
EXPSUM="c036cbb7553a909f8b8877d4461924307f27ecb66cff928eeeafd569c3887e29"
# Fill device with zeroes and reopen it
dd if=/dev/zero of=/dev/mapper/$2 bs=1M count=6 >/dev/null 2>&1
sync
dmremove $2
echo $PASSWORD | $CRYPTSETUP create -h sha256 -c $1 -s 256 $2 /dev/mapper/$DEV_NAME >/dev/null 2>&1
ret=$?
VSUM=$(sha256sum /dev/mapper/$2 | cut -d' ' -f 1)
if [ $ret -eq 0 -a "$VSUM" = "$EXPSUM" ] ; then
echo -n "[OK]"
else
echo "[FAIL]"
echo " Expecting $EXPSUM got $VSUM."
fail
fi
dmremove $2
}
dmcrypt()
{
OUT=$2
[ -z "$OUT" ] && OUT=$1
printf "%-31s" "$1"
echo $PASSWORD | $CRYPTSETUP create -h sha256 -c $1 -s 256 "$DEV_NAME"_tstdev /dev/mapper/$DEV_NAME >/dev/null 2>&1
if [ $? -eq 0 ] ; then
echo -n -e "PLAIN:"
dmcrypt_check "$DEV_NAME"_tstdev $OUT
else
echo -n "[n/a]"
fi
echo $PASSWORD | $CRYPTSETUP luksFormat --type luks1 $FAST_PBKDF2 -c $1 -s 256 /dev/mapper/$DEV_NAME >/dev/null 2>&1
if [ $? -eq 0 ] ; then
echo -n -e " LUKS1:"
echo $PASSWORD | $CRYPTSETUP luksOpen /dev/mapper/$DEV_NAME "$DEV_NAME"_tstdev >/dev/null 2>&1 || fail
dmcrypt_check "$DEV_NAME"_tstdev $OUT
fi
echo $PASSWORD | $CRYPTSETUP luksFormat --type luks2 --pbkdf pbkdf2 $FAST_PBKDF2 -c $1 -s 256 --offset 8192 /dev/mapper/$DEV_NAME >/dev/null 2>&1
if [ $? -eq 0 ] ; then
echo -n -e " LUKS2:"
echo $PASSWORD | $CRYPTSETUP luksOpen /dev/mapper/$DEV_NAME "$DEV_NAME"_tstdev >/dev/null 2>&1 || fail
dmcrypt_check "$DEV_NAME"_tstdev $OUT
fi
# repeated device creation must return the same checksum
echo $PASSWORD | $CRYPTSETUP create -h sha256 -c $1 -s 256 "$DEV_NAME"_tstdev /dev/mapper/$DEV_NAME >/dev/null 2>&1
if [ $? -eq 0 ] ; then
echo -n -e " CHECKSUM:"
dmcrypt_check_sum "$1" "$DEV_NAME"_tstdev
fi
echo
}
[ $(id -u) != 0 ] && skip "WARNING: You must be root to run this test, test skipped."
[ -z "$LOOPDEV" ] && skip "Cannot find free loop device, test skipped."
[ ! -x "$CRYPTSETUP" ] && skip "Cannot find $CRYPTSETUP, test skipped."
[ -n "$VALG" ] && valgrind_setup && CRYPTSETUP=valgrind_run
add_device
# compatibility modes
dmcrypt aes aes-cbc-plain
dmcrypt aes-plain aes-cbc-plain
# empty cipher
PASSWORD=""
dmcrypt null cipher_null-ecb
dmcrypt cipher_null cipher_null-ecb
dmcrypt cipher_null-ecb
PASSWORD=$PASSWORD1
# codebook doesn't support IV at all
for cipher in $CIPHERS ; do
dmcrypt "$cipher-ecb"
done
for cipher in $CIPHERS ; do
for mode in $MODES ; do
for ivmode in $IVMODES ; do
dmcrypt "$cipher-$mode-$ivmode"
done
done
done
dmcrypt xchacha12,aes-adiantum-plain64
dmcrypt xchacha20,aes-adiantum-plain64
echo -n "CAPI format:"
echo $PASSWORD | $CRYPTSETUP create -h sha256 -c 'capi:xts(aes)-plain64' -s 256 "$DEV_NAME"_tstdev /dev/mapper/$DEV_NAME || fail
$CRYPTSETUP close "$DEV_NAME"_tstdev || fail
echo $PASSWORD | $CRYPTSETUP create -h sha256 -c 'capi:xts(ecb(aes-generic))-plain64' -s 256 "$DEV_NAME"_tstdev /dev/mapper/$DEV_NAME 2>/dev/null && fail
dmsetup create "$DEV_NAME"_tstdev --table "0 8 crypt capi:xts(ecb(aes-generic))-plain64 $KEY 0 /dev/mapper/$DEV_NAME 0" || fail
$CRYPTSETUP status "$DEV_NAME"_tstdev 2>/dev/null | grep "type:" | grep -q "n/a" || fail
$CRYPTSETUP close "$DEV_NAME"_tstdev 2>/dev/null || fail
echo [OK]
cleanup
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