241 lines
9 KiB
Bash
Executable file
241 lines
9 KiB
Bash
Executable file
#!/bin/bash
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CIPHER_XTS_PLAIN="aes-xts-plain64"
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CIPHER_CBC_ESSIV="aes-cbc-essiv:sha256"
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CIPHER_CBC_TCW="serpent-cbc-tcw"
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# TODO: mode with LMK
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TEST_KEYRING_NAME="keyringtest_keyring"
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LOGON_KEY_16_OK="dmtst:lkey_16"
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LOGON_KEY_32_OK="dmtst:lkey_32"
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LOGON_KEY_64_OK="dmtst:lkey_64"
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HEXKEY_16="be21aa8c733229347bd4e681891e213d";
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HEXKEY_32="bb21158c733229347bd4e681891e213d94c685be6a5b84818afe7a78a6de7a1a";
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HEXKEY_64="34f95b96abff946b64f1339ff8653cc77c38697c93b797a496f3786e86eed7781850d5112bbae17d209b8310a8f3a034f1cd297667bc0cd1438fad28d87ef6a1"
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DEVSIZEMB=16
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DEVSECTORS=$((DEVSIZEMB*1024*1024/512))
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NAME=testcryptdev
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CHKS_DMCRYPT=vk_in_dmcrypt.chk
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CHKS_KEYRING=vk_in_keyring.chk
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PWD="aaablabl"
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[ -z "$CRYPTSETUP_PATH" ] && CRYPTSETUP_PATH=".."
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CRYPTSETUP=$CRYPTSETUP_PATH/cryptsetup
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if [ -n "$CRYPTSETUP_TESTS_RUN_IN_MESON" ]; then
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CRYPTSETUP_VALGRIND=$CRYPTSETUP
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else
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CRYPTSETUP_VALGRIND=../.libs/cryptsetup
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CRYPTSETUP_LIB_VALGRIND=../.libs
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fi
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FIPS_MODE=$(cat /proc/sys/crypto/fips_enabled 2>/dev/null)
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function remove_mapping()
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{
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[ -b /dev/mapper/$NAME ] && dmsetup remove --retry $NAME
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# unlink whole test keyring
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[ -n "$TEST_KEYRING" ] && keyctl unlink $TEST_KEYRING "@u" >/dev/null
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rmmod scsi_debug >/dev/null 2>&1
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rm -f $CHKS_DMCRYPT $CHKS_KEYRING
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}
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function skip()
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{
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[ -n "$1" ] && echo "$1"
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remove_mapping
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exit 77
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}
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function valgrind_setup()
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{
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command -v valgrind >/dev/null || fail "Cannot find valgrind."
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[ ! -f $CRYPTSETUP_VALGRIND ] && fail "Unable to get location of cryptsetup executable."
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[ ! -f valg.sh ] && fail "Unable to get location of valg runner script."
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if [ -z "$CRYPTSETUP_TESTS_RUN_IN_MESON" ]; then
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export LD_LIBRARY_PATH="$CRYPTSETUP_LIB_VALGRIND:$LD_LIBRARY_PATH"
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fi
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}
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function valgrind_run()
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{
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INFOSTRING="$(basename ${BASH_SOURCE[1]})-line-${BASH_LINENO[0]}" ./valg.sh ${CRYPTSETUP_VALGRIND} "$@"
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}
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function fail()
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{
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[ -n "$1" ] && echo "$1"
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echo "FAILED backtrace:"
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while caller $frame; do ((frame++)); done
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remove_mapping
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exit 2
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}
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# $1 hexbyte key
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# $2 type
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# $3 description
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# $4 keyring
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function load_key()
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{
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local tmp="$1"
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shift
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echo -n "$tmp" | xxd -r -p | keyctl padd $@ >/dev/null
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}
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function dm_crypt_keyring_support()
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{
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VER_STR=$(dmsetup targets | grep crypt | cut -f2 -dv)
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[ -z "$VER_STR" ] && fail "Failed to parse dm-crypt version."
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VER_MAJ=$(echo $VER_STR | cut -f 1 -d.)
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VER_MIN=$(echo $VER_STR | cut -f 2 -d.)
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# run the test with dm-crypt v1.15.0+ on purpose
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# the fix is in dm-crypt v1.18.1+
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[ $VER_MAJ -gt 1 ] && return 0
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[ $VER_MAJ -lt 1 ] && return 1
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[ $VER_MIN -ge 15 ]
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}
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function test_and_prepare_keyring() {
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keyctl list "@s" > /dev/null || skip "Current session keyring is unreachable, test skipped"
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TEST_KEYRING=$(keyctl newring $TEST_KEYRING_NAME "@u" 2> /dev/null)
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test -n "$TEST_KEYRING" || skip "Failed to create keyring in user keyring"
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keyctl search "@s" keyring "$TEST_KEYRING" > /dev/null 2>&1 || keyctl link "@u" "@s" > /dev/null 2>&1
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load_key "$HEXKEY_16" user test_key "$TEST_KEYRING" || skip "Kernel keyring service is useless on this system, test skipped."
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}
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function fips_mode()
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{
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[ -n "$FIPS_MODE" ] && [ "$FIPS_MODE" -gt 0 ]
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}
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add_device() {
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rmmod scsi_debug >/dev/null 2>&1
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if [ -d /sys/module/scsi_debug ] ; then
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echo "Cannot use scsi_debug module (in use or compiled-in), test skipped."
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exit 77
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fi
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modprobe scsi_debug $@ delay=0 >/dev/null 2>&1
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if [ $? -ne 0 ] ; then
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echo "This kernel seems to not support proper scsi_debug module, test skipped."
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exit 77
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fi
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sleep 1
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DEV=$(grep -l -e scsi_debug /sys/block/*/device/model | cut -f4 -d /)
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DEV="/dev/$DEV"
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[ -b $DEV ] || fail "Cannot find $DEV."
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}
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[ ! -x "$CRYPTSETUP" ] && skip "Cannot find $CRYPTSETUP, test skipped."
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[ -n "$VALG" ] && valgrind_setup && CRYPTSETUP=valgrind_run
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[ $(id -u) != 0 ] && skip "WARNING: You must be root to run this test, test skipped."
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command -v dmsetup >/dev/null || skip "Cannot find dmsetup, test skipped"
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command -v keyctl >/dev/null || skip "Cannot find keyctl, test skipped"
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command -v xxd >/dev/null || skip "Cannot find xxd, test skipped"
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command -v sha256sum >/dev/null || skip "Cannot find sha256sum, test skipped"
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modprobe dm-crypt >/dev/null 2>&1 || fail "dm-crypt failed to load"
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dm_crypt_keyring_support || skip "dm-crypt doesn't support kernel keyring, test skipped."
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test_and_prepare_keyring
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add_device dev_size_mb=$DEVSIZEMB
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dd if=/dev/urandom of=$DEV bs=1M count=$DEVSIZEMB oflag=direct > /dev/null 2>&1 || fail
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#test aes cipher with xts mode, plain IV
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echo -n "Testing $CIPHER_XTS_PLAIN..."
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dmsetup create $NAME --table "0 $DEVSECTORS crypt $CIPHER_XTS_PLAIN $HEXKEY_32 0 $DEV 0" || fail
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sha256sum /dev/mapper/$NAME > $CHKS_DMCRYPT || fail
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dmsetup remove --retry $NAME || fail
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load_key "$HEXKEY_32" logon $LOGON_KEY_32_OK "$TEST_KEYRING" || fail "Cannot load 32 byte logon key type"
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dmsetup create $NAME --table "0 $DEVSECTORS crypt $CIPHER_XTS_PLAIN :32:logon:$LOGON_KEY_32_OK 0 $DEV 0" || fail
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sha256sum /dev/mapper/$NAME > $CHKS_KEYRING || fail
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dmsetup remove --retry $NAME || fail
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diff $CHKS_DMCRYPT $CHKS_KEYRING || fail "Plaintext checksums mismatch (corruption)"
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# same test using message
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dmsetup create $NAME --table "0 $DEVSECTORS crypt $CIPHER_XTS_PLAIN $HEXKEY_32 0 $DEV 0" || fail
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sha256sum /dev/mapper/$NAME > $CHKS_DMCRYPT || fail
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dmsetup remove --retry $NAME || fail
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dmsetup create $NAME --table "0 $DEVSECTORS crypt $CIPHER_XTS_PLAIN $HEXKEY_32 0 $DEV 0" || fail
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dmsetup suspend $NAME || fail
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dmsetup message $NAME 0 key wipe || fail
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dmsetup message $NAME 0 "key set :32:logon:$LOGON_KEY_32_OK" || fail
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dmsetup resume $NAME || fail
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sha256sum /dev/mapper/$NAME > $CHKS_KEYRING || fail
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dmsetup remove --retry $NAME || fail
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diff $CHKS_DMCRYPT $CHKS_KEYRING || fail "Plaintext checksums mismatch (corruption)"
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echo "OK"
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#test aes cipher, xts mode, essiv IV
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echo -n "Testing $CIPHER_CBC_ESSIV..."
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dmsetup create $NAME --table "0 $DEVSECTORS crypt $CIPHER_CBC_ESSIV $HEXKEY_16 0 $DEV 0" || fail
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sha256sum /dev/mapper/$NAME > $CHKS_DMCRYPT || fail
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dmsetup remove --retry $NAME || fail
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load_key "$HEXKEY_16" logon $LOGON_KEY_16_OK "$TEST_KEYRING" || fail "Cannot load 16 byte logon key type"
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dmsetup create $NAME --table "0 $DEVSECTORS crypt $CIPHER_CBC_ESSIV :16:logon:$LOGON_KEY_16_OK 0 $DEV 0" || fail
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sha256sum /dev/mapper/$NAME > $CHKS_KEYRING || fail
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dmsetup remove --retry $NAME || fail
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diff $CHKS_DMCRYPT $CHKS_KEYRING || fail "Plaintext checksums mismatch (corruption)"
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# same test using message
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dmsetup create $NAME --table "0 $DEVSECTORS crypt $CIPHER_CBC_ESSIV $HEXKEY_16 0 $DEV 0" || fail
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sha256sum /dev/mapper/$NAME > $CHKS_DMCRYPT || fail
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dmsetup remove --retry $NAME || fail
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dmsetup create $NAME --table "0 $DEVSECTORS crypt $CIPHER_CBC_ESSIV $HEXKEY_16 0 $DEV 0" || fail
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dmsetup suspend $NAME || fail
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dmsetup message $NAME 0 key wipe || fail
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dmsetup message $NAME 0 "key set :16:logon:$LOGON_KEY_16_OK" || fail
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dmsetup resume $NAME || fail
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sha256sum /dev/mapper/$NAME > $CHKS_KEYRING || fail
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dmsetup remove --retry $NAME || fail
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diff $CHKS_DMCRYPT $CHKS_KEYRING || fail "Plaintext checksums mismatch (corruption)"
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echo "OK"
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#test serpent cipher, cbc mode, tcw IV
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fips_mode || {
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echo -n "Testing $CIPHER_CBC_TCW..."
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dmsetup create $NAME --table "0 $DEVSECTORS crypt $CIPHER_CBC_TCW $HEXKEY_64 0 $DEV 0" || fail
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sha256sum /dev/mapper/$NAME > $CHKS_DMCRYPT || fail
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dmsetup remove --retry $NAME || fail
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load_key "$HEXKEY_64" logon $LOGON_KEY_64_OK "$TEST_KEYRING" || fail "Cannot load 16 byte logon key type"
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dmsetup create $NAME --table "0 $DEVSECTORS crypt $CIPHER_CBC_TCW :64:logon:$LOGON_KEY_64_OK 0 $DEV 0" || fail
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sha256sum /dev/mapper/$NAME > $CHKS_KEYRING || fail
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dmsetup remove --retry $NAME || fail
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diff $CHKS_DMCRYPT $CHKS_KEYRING || fail "Plaintext checksum mismatch (corruption)"
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# same test using message
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dmsetup create $NAME --table "0 $DEVSECTORS crypt $CIPHER_CBC_TCW $HEXKEY_64 0 $DEV 0" || fail
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sha256sum /dev/mapper/$NAME > $CHKS_DMCRYPT || fail
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dmsetup remove --retry $NAME || fail
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dmsetup create $NAME --table "0 $DEVSECTORS crypt $CIPHER_CBC_TCW $HEXKEY_64 0 $DEV 0" || fail
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dmsetup suspend $NAME || fail
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dmsetup message $NAME 0 key wipe || fail
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dmsetup message $NAME 0 "key set :64:logon:$LOGON_KEY_64_OK" || fail
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dmsetup resume $NAME || fail
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sha256sum /dev/mapper/$NAME > $CHKS_KEYRING || fail
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dmsetup remove --retry $NAME || fail
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diff $CHKS_DMCRYPT $CHKS_KEYRING || fail "Plaintext checksums mismatch (corruption)"
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echo "OK"
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}
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echo -n "Test LUKS2 key refresh..."
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echo $PWD | $CRYPTSETUP luksFormat --type luks2 --luks2-metadata-size 16k --luks2-keyslots-size 4064k --pbkdf pbkdf2 --pbkdf-force-iterations 1000 --force-password $DEV || fail
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echo $PWD | $CRYPTSETUP open $DEV $NAME || fail
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$CRYPTSETUP status $NAME | grep -q -i "location:.*keyring" || skip "LUKS2 can't use keyring. Test skipped."
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dd if=/dev/mapper/$NAME bs=1M iflag=direct status=none | sha256sum > $CHKS_KEYRING || fail
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echo $PWD | $CRYPTSETUP refresh $NAME --disable-keyring || fail
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$CRYPTSETUP status $NAME | grep -q -i "location:.*keyring" && fail "Key is still in keyring"
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dd if=/dev/mapper/$NAME bs=1M iflag=direct status=none | sha256sum > $CHKS_DMCRYPT || fail
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diff $CHKS_DMCRYPT $CHKS_KEYRING || fail "Plaintext checksum mismatch (corruption)"
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echo "OK"
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remove_mapping
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