1 files changed, 171 insertions, 0 deletions
diff --git a/tests/mode-test b/tests/mode-test
new file mode 100755
index 0000000..d16482f
--- /dev/null
+++ b/tests/mode-test
@@ -0,0 +1,171 @@
+#!/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=$PASSWORD
+
+# cipher-chainmode-ivopts:ivmode
+CIPHERS="aes twofish serpent"
+MODES="cbc lrw xts"
+IVMODES="null benbi plain plain64 essiv:sha256"
+
+LOOPDEV=$(losetup -f 2>/dev/null)
+
+dmremove() { # device
+	udevadm settle >/dev/null 2>&1
+	dmsetup remove --retry $1 >/dev/null 2>&1
+}
+
+cleanup() {
+	for dev in $(dmsetup status --target crypt | sed s/\:\ .*// | grep "^$DEV_NAME"_); do
+		dmremove $dev
+		sleep 2
+	done
+	[ -b /dev/mapper/$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 "$1"
+	exit 77
+}
+
+add_device() {
+	cleanup
+	dd if=/dev/zero of=$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 -i 1 -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 -i 1 -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."
+
+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
+
+cleanup