Adding qemu as a submodule of KVMFORNFV

This Patch includes the changes to add qemu as a submodule to
kvmfornfv repo and make use of the updated latest qemu for the
execution of all testcase
Change-Id: I1280af507a857675c7f81d30c95255635667bdd7
Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>

1 files changed, 0 insertions, 1329 deletions

diff --git a/qemu/crypto/block-luks.c b/qemu/crypto/block-luks.c
deleted file mode 100644
index 439f89230..000000000
--- a/qemu/crypto/block-luks.c
+++ /dev/null
@@ -1,1329 +0,0 @@
-/*
- * QEMU Crypto block device encryption LUKS format
- *
- * Copyright (c) 2015-2016 Red Hat, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-#include "qemu/osdep.h"
-#include "qapi/error.h"
-
-#include "crypto/block-luks.h"
-
-#include "crypto/hash.h"
-#include "crypto/afsplit.h"
-#include "crypto/pbkdf.h"
-#include "crypto/secret.h"
-#include "crypto/random.h"
-
-#ifdef CONFIG_UUID
-#include <uuid/uuid.h>
-#endif
-
-#include "qemu/coroutine.h"
-
-/*
- * Reference for the LUKS format implemented here is
- *
- *   docs/on-disk-format.pdf
- *
- * in 'cryptsetup' package source code
- *
- * This file implements the 1.2.1 specification, dated
- * Oct 16, 2011.
- */
-
-typedef struct QCryptoBlockLUKS QCryptoBlockLUKS;
-typedef struct QCryptoBlockLUKSHeader QCryptoBlockLUKSHeader;
-typedef struct QCryptoBlockLUKSKeySlot QCryptoBlockLUKSKeySlot;
-
-
-/* The following constants are all defined by the LUKS spec */
-#define QCRYPTO_BLOCK_LUKS_VERSION 1
-
-#define QCRYPTO_BLOCK_LUKS_MAGIC_LEN 6
-#define QCRYPTO_BLOCK_LUKS_CIPHER_NAME_LEN 32
-#define QCRYPTO_BLOCK_LUKS_CIPHER_MODE_LEN 32
-#define QCRYPTO_BLOCK_LUKS_HASH_SPEC_LEN 32
-#define QCRYPTO_BLOCK_LUKS_DIGEST_LEN 20
-#define QCRYPTO_BLOCK_LUKS_SALT_LEN 32
-#define QCRYPTO_BLOCK_LUKS_UUID_LEN 40
-#define QCRYPTO_BLOCK_LUKS_NUM_KEY_SLOTS 8
-#define QCRYPTO_BLOCK_LUKS_STRIPES 4000
-#define QCRYPTO_BLOCK_LUKS_MIN_SLOT_KEY_ITERS 1000
-#define QCRYPTO_BLOCK_LUKS_MIN_MASTER_KEY_ITERS 1000
-#define QCRYPTO_BLOCK_LUKS_KEY_SLOT_OFFSET 4096
-
-#define QCRYPTO_BLOCK_LUKS_KEY_SLOT_DISABLED 0x0000DEAD
-#define QCRYPTO_BLOCK_LUKS_KEY_SLOT_ENABLED 0x00AC71F3
-
-#define QCRYPTO_BLOCK_LUKS_SECTOR_SIZE 512LL
-
-static const char qcrypto_block_luks_magic[QCRYPTO_BLOCK_LUKS_MAGIC_LEN] = {
-    'L', 'U', 'K', 'S', 0xBA, 0xBE
-};
-
-typedef struct QCryptoBlockLUKSNameMap QCryptoBlockLUKSNameMap;
-struct QCryptoBlockLUKSNameMap {
-    const char *name;
-    int id;
-};
-
-typedef struct QCryptoBlockLUKSCipherSizeMap QCryptoBlockLUKSCipherSizeMap;
-struct QCryptoBlockLUKSCipherSizeMap {
-    uint32_t key_bytes;
-    int id;
-};
-typedef struct QCryptoBlockLUKSCipherNameMap QCryptoBlockLUKSCipherNameMap;
-struct QCryptoBlockLUKSCipherNameMap {
-    const char *name;
-    const QCryptoBlockLUKSCipherSizeMap *sizes;
-};
-
-
-static const QCryptoBlockLUKSCipherSizeMap
-qcrypto_block_luks_cipher_size_map_aes[] = {
-    { 16, QCRYPTO_CIPHER_ALG_AES_128 },
-    { 24, QCRYPTO_CIPHER_ALG_AES_192 },
-    { 32, QCRYPTO_CIPHER_ALG_AES_256 },
-    { 0, 0 },
-};
-
-static const QCryptoBlockLUKSCipherSizeMap
-qcrypto_block_luks_cipher_size_map_cast5[] = {
-    { 16, QCRYPTO_CIPHER_ALG_CAST5_128 },
-    { 0, 0 },
-};
-
-static const QCryptoBlockLUKSCipherSizeMap
-qcrypto_block_luks_cipher_size_map_serpent[] = {
-    { 16, QCRYPTO_CIPHER_ALG_SERPENT_128 },
-    { 24, QCRYPTO_CIPHER_ALG_SERPENT_192 },
-    { 32, QCRYPTO_CIPHER_ALG_SERPENT_256 },
-    { 0, 0 },
-};
-
-static const QCryptoBlockLUKSCipherSizeMap
-qcrypto_block_luks_cipher_size_map_twofish[] = {
-    { 16, QCRYPTO_CIPHER_ALG_TWOFISH_128 },
-    { 24, QCRYPTO_CIPHER_ALG_TWOFISH_192 },
-    { 32, QCRYPTO_CIPHER_ALG_TWOFISH_256 },
-    { 0, 0 },
-};
-
-static const QCryptoBlockLUKSCipherNameMap
-qcrypto_block_luks_cipher_name_map[] = {
-    { "aes", qcrypto_block_luks_cipher_size_map_aes },
-    { "cast5", qcrypto_block_luks_cipher_size_map_cast5 },
-    { "serpent", qcrypto_block_luks_cipher_size_map_serpent },
-    { "twofish", qcrypto_block_luks_cipher_size_map_twofish },
-};
-
-
-/*
- * This struct is written to disk in big-endian format,
- * but operated upon in native-endian format.
- */
-struct QCryptoBlockLUKSKeySlot {
-    /* state of keyslot, enabled/disable */
-    uint32_t active;
-    /* iterations for PBKDF2 */
-    uint32_t iterations;
-    /* salt for PBKDF2 */
-    uint8_t salt[QCRYPTO_BLOCK_LUKS_SALT_LEN];
-    /* start sector of key material */
-    uint32_t key_offset;
-    /* number of anti-forensic stripes */
-    uint32_t stripes;
-} QEMU_PACKED;
-
-QEMU_BUILD_BUG_ON(sizeof(struct QCryptoBlockLUKSKeySlot) != 48);
-
-
-/*
- * This struct is written to disk in big-endian format,
- * but operated upon in native-endian format.
- */
-struct QCryptoBlockLUKSHeader {
-    /* 'L', 'U', 'K', 'S', '0xBA', '0xBE' */
-    char magic[QCRYPTO_BLOCK_LUKS_MAGIC_LEN];
-
-    /* LUKS version, currently 1 */
-    uint16_t version;
-
-    /* cipher name specification (aes, etc) */
-    char cipher_name[QCRYPTO_BLOCK_LUKS_CIPHER_NAME_LEN];
-
-    /* cipher mode specification (cbc-plain, xts-essiv:sha256, etc) */
-    char cipher_mode[QCRYPTO_BLOCK_LUKS_CIPHER_MODE_LEN];
-
-    /* hash specification (sha256, etc) */
-    char hash_spec[QCRYPTO_BLOCK_LUKS_HASH_SPEC_LEN];
-
-    /* start offset of the volume data (in 512 byte sectors) */
-    uint32_t payload_offset;
-
-    /* Number of key bytes */
-    uint32_t key_bytes;
-
-    /* master key checksum after PBKDF2 */
-    uint8_t master_key_digest[QCRYPTO_BLOCK_LUKS_DIGEST_LEN];
-
-    /* salt for master key PBKDF2 */
-    uint8_t master_key_salt[QCRYPTO_BLOCK_LUKS_SALT_LEN];
-
-    /* iterations for master key PBKDF2 */
-    uint32_t master_key_iterations;
-
-    /* UUID of the partition in standard ASCII representation */
-    uint8_t uuid[QCRYPTO_BLOCK_LUKS_UUID_LEN];
-
-    /* key slots */
-    QCryptoBlockLUKSKeySlot key_slots[QCRYPTO_BLOCK_LUKS_NUM_KEY_SLOTS];
-} QEMU_PACKED;
-
-QEMU_BUILD_BUG_ON(sizeof(struct QCryptoBlockLUKSHeader) != 592);
-
-
-struct QCryptoBlockLUKS {
-    QCryptoBlockLUKSHeader header;
-};
-
-
-static int qcrypto_block_luks_cipher_name_lookup(const char *name,
-                                                 QCryptoCipherMode mode,
-                                                 uint32_t key_bytes,
-                                                 Error **errp)
-{
-    const QCryptoBlockLUKSCipherNameMap *map =
-        qcrypto_block_luks_cipher_name_map;
-    size_t maplen = G_N_ELEMENTS(qcrypto_block_luks_cipher_name_map);
-    size_t i, j;
-
-    if (mode == QCRYPTO_CIPHER_MODE_XTS) {
-        key_bytes /= 2;
-    }
-
-    for (i = 0; i < maplen; i++) {
-        if (!g_str_equal(map[i].name, name)) {
-            continue;
-        }
-        for (j = 0; j < map[i].sizes[j].key_bytes; j++) {
-            if (map[i].sizes[j].key_bytes == key_bytes) {
-                return map[i].sizes[j].id;
-            }
-        }
-    }
-
-    error_setg(errp, "Algorithm %s with key size %d bytes not supported",
-               name, key_bytes);
-    return 0;
-}
-
-static const char *
-qcrypto_block_luks_cipher_alg_lookup(QCryptoCipherAlgorithm alg,
-                                     Error **errp)
-{
-    const QCryptoBlockLUKSCipherNameMap *map =
-        qcrypto_block_luks_cipher_name_map;
-    size_t maplen = G_N_ELEMENTS(qcrypto_block_luks_cipher_name_map);
-    size_t i, j;
-    for (i = 0; i < maplen; i++) {
-        for (j = 0; j < map[i].sizes[j].key_bytes; j++) {
-            if (map[i].sizes[j].id == alg) {
-                return map[i].name;
-            }
-        }
-    }
-
-    error_setg(errp, "Algorithm '%s' not supported",
-               QCryptoCipherAlgorithm_lookup[alg]);
-    return NULL;
-}
-
-/* XXX replace with qapi_enum_parse() in future, when we can
- * make that function emit a more friendly error message */
-static int qcrypto_block_luks_name_lookup(const char *name,
-                                          const char *const *map,
-                                          size_t maplen,
-                                          const char *type,
-                                          Error **errp)
-{
-    size_t i;
-    for (i = 0; i < maplen; i++) {
-        if (g_str_equal(map[i], name)) {
-            return i;
-        }
-    }
-
-    error_setg(errp, "%s %s not supported", type, name);
-    return 0;
-}
-
-#define qcrypto_block_luks_cipher_mode_lookup(name, errp)               \
-    qcrypto_block_luks_name_lookup(name,                                \
-                                   QCryptoCipherMode_lookup,            \
-                                   QCRYPTO_CIPHER_MODE__MAX,            \
-                                   "Cipher mode",                       \
-                                   errp)
-
-#define qcrypto_block_luks_hash_name_lookup(name, errp)                 \
-    qcrypto_block_luks_name_lookup(name,                                \
-                                   QCryptoHashAlgorithm_lookup,         \
-                                   QCRYPTO_HASH_ALG__MAX,               \
-                                   "Hash algorithm",                    \
-                                   errp)
-
-#define qcrypto_block_luks_ivgen_name_lookup(name, errp)                \
-    qcrypto_block_luks_name_lookup(name,                                \
-                                   QCryptoIVGenAlgorithm_lookup,        \
-                                   QCRYPTO_IVGEN_ALG__MAX,              \
-                                   "IV generator",                      \
-                                   errp)
-
-
-static bool
-qcrypto_block_luks_has_format(const uint8_t *buf,
-                              size_t buf_size)
-{
-    const QCryptoBlockLUKSHeader *luks_header = (const void *)buf;
-
-    if (buf_size >= offsetof(QCryptoBlockLUKSHeader, cipher_name) &&
-        memcmp(luks_header->magic, qcrypto_block_luks_magic,
-               QCRYPTO_BLOCK_LUKS_MAGIC_LEN) == 0 &&
-        be16_to_cpu(luks_header->version) == QCRYPTO_BLOCK_LUKS_VERSION) {
-        return true;
-    } else {
-        return false;
-    }
-}
-
-
-/**
- * Deal with a quirk of dm-crypt usage of ESSIV.
- *
- * When calculating ESSIV IVs, the cipher length used by ESSIV
- * may be different from the cipher length used for the block
- * encryption, becauses dm-crypt uses the hash digest length
- * as the key size. ie, if you have AES 128 as the block cipher
- * and SHA 256 as ESSIV hash, then ESSIV will use AES 256 as
- * the cipher since that gets a key length matching the digest
- * size, not AES 128 with truncated digest as might be imagined
- */
-static QCryptoCipherAlgorithm
-qcrypto_block_luks_essiv_cipher(QCryptoCipherAlgorithm cipher,
-                                QCryptoHashAlgorithm hash,
-                                Error **errp)
-{
-    size_t digestlen = qcrypto_hash_digest_len(hash);
-    size_t keylen = qcrypto_cipher_get_key_len(cipher);
-    if (digestlen == keylen) {
-        return cipher;
-    }
-
-    switch (cipher) {
-    case QCRYPTO_CIPHER_ALG_AES_128:
-    case QCRYPTO_CIPHER_ALG_AES_192:
-    case QCRYPTO_CIPHER_ALG_AES_256:
-        if (digestlen == qcrypto_cipher_get_key_len(
-                QCRYPTO_CIPHER_ALG_AES_128)) {
-            return QCRYPTO_CIPHER_ALG_AES_128;
-        } else if (digestlen == qcrypto_cipher_get_key_len(
-                       QCRYPTO_CIPHER_ALG_AES_192)) {
-            return QCRYPTO_CIPHER_ALG_AES_192;
-        } else if (digestlen == qcrypto_cipher_get_key_len(
-                       QCRYPTO_CIPHER_ALG_AES_256)) {
-            return QCRYPTO_CIPHER_ALG_AES_256;
-        } else {
-            error_setg(errp, "No AES cipher with key size %zu available",
-                       digestlen);
-            return 0;
-        }
-        break;
-    case QCRYPTO_CIPHER_ALG_SERPENT_128:
-    case QCRYPTO_CIPHER_ALG_SERPENT_192:
-    case QCRYPTO_CIPHER_ALG_SERPENT_256:
-        if (digestlen == qcrypto_cipher_get_key_len(
-                QCRYPTO_CIPHER_ALG_SERPENT_128)) {
-            return QCRYPTO_CIPHER_ALG_SERPENT_128;
-        } else if (digestlen == qcrypto_cipher_get_key_len(
-                       QCRYPTO_CIPHER_ALG_SERPENT_192)) {
-            return QCRYPTO_CIPHER_ALG_SERPENT_192;
-        } else if (digestlen == qcrypto_cipher_get_key_len(
-                       QCRYPTO_CIPHER_ALG_SERPENT_256)) {
-            return QCRYPTO_CIPHER_ALG_SERPENT_256;
-        } else {
-            error_setg(errp, "No Serpent cipher with key size %zu available",
-                       digestlen);
-            return 0;
-        }
-        break;
-    case QCRYPTO_CIPHER_ALG_TWOFISH_128:
-    case QCRYPTO_CIPHER_ALG_TWOFISH_192:
-    case QCRYPTO_CIPHER_ALG_TWOFISH_256:
-        if (digestlen == qcrypto_cipher_get_key_len(
-                QCRYPTO_CIPHER_ALG_TWOFISH_128)) {
-            return QCRYPTO_CIPHER_ALG_TWOFISH_128;
-        } else if (digestlen == qcrypto_cipher_get_key_len(
-                       QCRYPTO_CIPHER_ALG_TWOFISH_192)) {
-            return QCRYPTO_CIPHER_ALG_TWOFISH_192;
-        } else if (digestlen == qcrypto_cipher_get_key_len(
-                       QCRYPTO_CIPHER_ALG_TWOFISH_256)) {
-            return QCRYPTO_CIPHER_ALG_TWOFISH_256;
-        } else {
-            error_setg(errp, "No Twofish cipher with key size %zu available",
-                       digestlen);
-            return 0;
-        }
-        break;
-    default:
-        error_setg(errp, "Cipher %s not supported with essiv",
-                   QCryptoCipherAlgorithm_lookup[cipher]);
-        return 0;
-    }
-}
-
-/*
- * Given a key slot, and user password, this will attempt to unlock
- * the master encryption key from the key slot.
- *
- * Returns:
- *    0 if the key slot is disabled, or key could not be decrypted
- *      with the provided password
- *    1 if the key slot is enabled, and key decrypted successfully
- *      with the provided password
- *   -1 if a fatal error occurred loading the key
- */
-static int
-qcrypto_block_luks_load_key(QCryptoBlock *block,
-                            QCryptoBlockLUKSKeySlot *slot,
-                            const char *password,
-                            QCryptoCipherAlgorithm cipheralg,
-                            QCryptoCipherMode ciphermode,
-                            QCryptoHashAlgorithm hash,
-                            QCryptoIVGenAlgorithm ivalg,
-                            QCryptoCipherAlgorithm ivcipheralg,
-                            QCryptoHashAlgorithm ivhash,
-                            uint8_t *masterkey,
-                            size_t masterkeylen,
-                            QCryptoBlockReadFunc readfunc,
-                            void *opaque,
-                            Error **errp)
-{
-    QCryptoBlockLUKS *luks = block->opaque;
-    uint8_t *splitkey;
-    size_t splitkeylen;
-    uint8_t *possiblekey;
-    int ret = -1;
-    ssize_t rv;
-    QCryptoCipher *cipher = NULL;
-    uint8_t keydigest[QCRYPTO_BLOCK_LUKS_DIGEST_LEN];
-    QCryptoIVGen *ivgen = NULL;
-    size_t niv;
-
-    if (slot->active != QCRYPTO_BLOCK_LUKS_KEY_SLOT_ENABLED) {
-        return 0;
-    }
-
-    splitkeylen = masterkeylen * slot->stripes;
-    splitkey = g_new0(uint8_t, splitkeylen);
-    possiblekey = g_new0(uint8_t, masterkeylen);
-
-    /*
-     * The user password is used to generate a (possible)
-     * decryption key. This may or may not successfully
-     * decrypt the master key - we just blindly assume
-     * the key is correct and validate the results of
-     * decryption later.
-     */
-    if (qcrypto_pbkdf2(hash,
-                       (const uint8_t *)password, strlen(password),
-                       slot->salt, QCRYPTO_BLOCK_LUKS_SALT_LEN,
-                       slot->iterations,
-                       possiblekey, masterkeylen,
-                       errp) < 0) {
-        goto cleanup;
-    }
-
-    /*
-     * We need to read the master key material from the
-     * LUKS key material header. What we're reading is
-     * not the raw master key, but rather the data after
-     * it has been passed through AFSplit and the result
-     * then encrypted.
-     */
-    rv = readfunc(block,
-                  slot->key_offset * QCRYPTO_BLOCK_LUKS_SECTOR_SIZE,
-                  splitkey, splitkeylen,
-                  errp,
-                  opaque);
-    if (rv < 0) {
-        goto cleanup;
-    }
-
-
-    /* Setup the cipher/ivgen that we'll use to try to decrypt
-     * the split master key material */
-    cipher = qcrypto_cipher_new(cipheralg, ciphermode,
-                                possiblekey, masterkeylen,
-                                errp);
-    if (!cipher) {
-        goto cleanup;
-    }
-
-    niv = qcrypto_cipher_get_iv_len(cipheralg,
-                                    ciphermode);
-    ivgen = qcrypto_ivgen_new(ivalg,
-                              ivcipheralg,
-                              ivhash,
-                              possiblekey, masterkeylen,
-                              errp);
-    if (!ivgen) {
-        goto cleanup;
-    }
-
-
-    /*
-     * The master key needs to be decrypted in the same
-     * way that the block device payload will be decrypted
-     * later. In particular we'll be using the IV generator
-     * to reset the encryption cipher every time the master
-     * key crosses a sector boundary.
-     */
-    if (qcrypto_block_decrypt_helper(cipher,
-                                     niv,
-                                     ivgen,
-                                     QCRYPTO_BLOCK_LUKS_SECTOR_SIZE,
-                                     0,
-                                     splitkey,
-                                     splitkeylen,
-                                     errp) < 0) {
-        goto cleanup;
-    }
-
-    /*
-     * Now we've decrypted the split master key, join
-     * it back together to get the actual master key.
-     */
-    if (qcrypto_afsplit_decode(hash,
-                               masterkeylen,
-                               slot->stripes,
-                               splitkey,
-                               masterkey,
-                               errp) < 0) {
-        goto cleanup;
-    }
-
-
-    /*
-     * We still don't know that the masterkey we got is valid,
-     * because we just blindly assumed the user's password
-     * was correct. This is where we now verify it. We are
-     * creating a hash of the master key using PBKDF and
-     * then comparing that to the hash stored in the key slot
-     * header
-     */
-    if (qcrypto_pbkdf2(hash,
-                       masterkey, masterkeylen,
-                       luks->header.master_key_salt,
-                       QCRYPTO_BLOCK_LUKS_SALT_LEN,
-                       luks->header.master_key_iterations,
-                       keydigest, G_N_ELEMENTS(keydigest),
-                       errp) < 0) {
-        goto cleanup;
-    }
-
-    if (memcmp(keydigest, luks->header.master_key_digest,
-               QCRYPTO_BLOCK_LUKS_DIGEST_LEN) == 0) {
-        /* Success, we got the right master key */
-        ret = 1;
-        goto cleanup;
-    }
-
-    /* Fail, user's password was not valid for this key slot,
-     * tell caller to try another slot */
-    ret = 0;
-
- cleanup:
-    qcrypto_ivgen_free(ivgen);
-    qcrypto_cipher_free(cipher);
-    g_free(splitkey);
-    g_free(possiblekey);
-    return ret;
-}
-
-
-/*
- * Given a user password, this will iterate over all key
- * slots and try to unlock each active key slot using the
- * password until it successfully obtains a master key.
- *
- * Returns 0 if a key was loaded, -1 if no keys could be loaded
- */
-static int
-qcrypto_block_luks_find_key(QCryptoBlock *block,
-                            const char *password,
-                            QCryptoCipherAlgorithm cipheralg,
-                            QCryptoCipherMode ciphermode,
-                            QCryptoHashAlgorithm hash,
-                            QCryptoIVGenAlgorithm ivalg,
-                            QCryptoCipherAlgorithm ivcipheralg,
-                            QCryptoHashAlgorithm ivhash,
-                            uint8_t **masterkey,
-                            size_t *masterkeylen,
-                            QCryptoBlockReadFunc readfunc,
-                            void *opaque,
-                            Error **errp)
-{
-    QCryptoBlockLUKS *luks = block->opaque;
-    size_t i;
-    int rv;
-
-    *masterkey = g_new0(uint8_t, luks->header.key_bytes);
-    *masterkeylen = luks->header.key_bytes;
-
-    for (i = 0; i < QCRYPTO_BLOCK_LUKS_NUM_KEY_SLOTS; i++) {
-        rv = qcrypto_block_luks_load_key(block,
-                                         &luks->header.key_slots[i],
-                                         password,
-                                         cipheralg,
-                                         ciphermode,
-                                         hash,
-                                         ivalg,
-                                         ivcipheralg,
-                                         ivhash,
-                                         *masterkey,
-                                         *masterkeylen,
-                                         readfunc,
-                                         opaque,
-                                         errp);
-        if (rv < 0) {
-            goto error;
-        }
-        if (rv == 1) {
-            return 0;
-        }
-    }
-
-    error_setg(errp, "Invalid password, cannot unlock any keyslot");
-
- error:
-    g_free(*masterkey);
-    *masterkey = NULL;
-    *masterkeylen = 0;
-    return -1;
-}
-
-
-static int
-qcrypto_block_luks_open(QCryptoBlock *block,
-                        QCryptoBlockOpenOptions *options,
-                        QCryptoBlockReadFunc readfunc,
-                        void *opaque,
-                        unsigned int flags,
-                        Error **errp)
-{
-    QCryptoBlockLUKS *luks;
-    Error *local_err = NULL;
-    int ret = 0;
-    size_t i;
-    ssize_t rv;
-    uint8_t *masterkey = NULL;
-    size_t masterkeylen;
-    char *ivgen_name, *ivhash_name;
-    QCryptoCipherMode ciphermode;
-    QCryptoCipherAlgorithm cipheralg;
-    QCryptoIVGenAlgorithm ivalg;
-    QCryptoCipherAlgorithm ivcipheralg;
-    QCryptoHashAlgorithm hash;
-    QCryptoHashAlgorithm ivhash;
-    char *password = NULL;
-
-    if (!(flags & QCRYPTO_BLOCK_OPEN_NO_IO)) {
-        if (!options->u.luks.key_secret) {
-            error_setg(errp, "Parameter 'key-secret' is required for cipher");
-            return -1;
-        }
-        password = qcrypto_secret_lookup_as_utf8(
-            options->u.luks.key_secret, errp);
-        if (!password) {
-            return -1;
-        }
-    }
-
-    luks = g_new0(QCryptoBlockLUKS, 1);
-    block->opaque = luks;
-
-    /* Read the entire LUKS header, minus the key material from
-     * the underlying device */
-    rv = readfunc(block, 0,
-                  (uint8_t *)&luks->header,
-                  sizeof(luks->header),
-                  errp,
-                  opaque);
-    if (rv < 0) {
-        ret = rv;
-        goto fail;
-    }
-
-    /* The header is always stored in big-endian format, so
-     * convert everything to native */
-    be16_to_cpus(&luks->header.version);
-    be32_to_cpus(&luks->header.payload_offset);
-    be32_to_cpus(&luks->header.key_bytes);
-    be32_to_cpus(&luks->header.master_key_iterations);
-
-    for (i = 0; i < QCRYPTO_BLOCK_LUKS_NUM_KEY_SLOTS; i++) {
-        be32_to_cpus(&luks->header.key_slots[i].active);
-        be32_to_cpus(&luks->header.key_slots[i].iterations);
-        be32_to_cpus(&luks->header.key_slots[i].key_offset);
-        be32_to_cpus(&luks->header.key_slots[i].stripes);
-    }
-
-    if (memcmp(luks->header.magic, qcrypto_block_luks_magic,
-               QCRYPTO_BLOCK_LUKS_MAGIC_LEN) != 0) {
-        error_setg(errp, "Volume is not in LUKS format");
-        ret = -EINVAL;
-        goto fail;
-    }
-    if (luks->header.version != QCRYPTO_BLOCK_LUKS_VERSION) {
-        error_setg(errp, "LUKS version %" PRIu32 " is not supported",
-                   luks->header.version);
-        ret = -ENOTSUP;
-        goto fail;
-    }
-
-    /*
-     * The cipher_mode header contains a string that we have
-     * to further parse, of the format
-     *
-     *    <cipher-mode>-<iv-generator>[:<iv-hash>]
-     *
-     * eg  cbc-essiv:sha256, cbc-plain64
-     */
-    ivgen_name = strchr(luks->header.cipher_mode, '-');
-    if (!ivgen_name) {
-        ret = -EINVAL;
-        error_setg(errp, "Unexpected cipher mode string format %s",
-                   luks->header.cipher_mode);
-        goto fail;
-    }
-    *ivgen_name = '\0';
-    ivgen_name++;
-
-    ivhash_name = strchr(ivgen_name, ':');
-    if (!ivhash_name) {
-        ivhash = 0;
-    } else {
-        *ivhash_name = '\0';
-        ivhash_name++;
-
-        ivhash = qcrypto_block_luks_hash_name_lookup(ivhash_name,
-                                                     &local_err);
-        if (local_err) {
-            ret = -ENOTSUP;
-            error_propagate(errp, local_err);
-            goto fail;
-        }
-    }
-
-    ciphermode = qcrypto_block_luks_cipher_mode_lookup(luks->header.cipher_mode,
-                                                       &local_err);
-    if (local_err) {
-        ret = -ENOTSUP;
-        error_propagate(errp, local_err);
-        goto fail;
-    }
-
-    cipheralg = qcrypto_block_luks_cipher_name_lookup(luks->header.cipher_name,
-                                                      ciphermode,
-                                                      luks->header.key_bytes,
-                                                      &local_err);
-    if (local_err) {
-        ret = -ENOTSUP;
-        error_propagate(errp, local_err);
-        goto fail;
-    }
-
-    hash = qcrypto_block_luks_hash_name_lookup(luks->header.hash_spec,
-                                               &local_err);
-    if (local_err) {
-        ret = -ENOTSUP;
-        error_propagate(errp, local_err);
-        goto fail;
-    }
-
-    ivalg = qcrypto_block_luks_ivgen_name_lookup(ivgen_name,
-                                                 &local_err);
-    if (local_err) {
-        ret = -ENOTSUP;
-        error_propagate(errp, local_err);
-        goto fail;
-    }
-
-    if (ivalg == QCRYPTO_IVGEN_ALG_ESSIV) {
-        ivcipheralg = qcrypto_block_luks_essiv_cipher(cipheralg,
-                                                      ivhash,
-                                                      &local_err);
-        if (local_err) {
-            ret = -ENOTSUP;
-            error_propagate(errp, local_err);
-            goto fail;
-        }
-    } else {
-        ivcipheralg = cipheralg;
-    }
-
-    if (!(flags & QCRYPTO_BLOCK_OPEN_NO_IO)) {
-        /* Try to find which key slot our password is valid for
-         * and unlock the master key from that slot.
-         */
-        if (qcrypto_block_luks_find_key(block,
-                                        password,
-                                        cipheralg, ciphermode,
-                                        hash,
-                                        ivalg,
-                                        ivcipheralg,
-                                        ivhash,
-                                        &masterkey, &masterkeylen,
-                                        readfunc, opaque,
-                                        errp) < 0) {
-            ret = -EACCES;
-            goto fail;
-        }
-
-        /* We have a valid master key now, so can setup the
-         * block device payload decryption objects
-         */
-        block->kdfhash = hash;
-        block->niv = qcrypto_cipher_get_iv_len(cipheralg,
-                                               ciphermode);
-        block->ivgen = qcrypto_ivgen_new(ivalg,
-                                         ivcipheralg,
-                                         ivhash,
-                                         masterkey, masterkeylen,
-                                         errp);
-        if (!block->ivgen) {
-            ret = -ENOTSUP;
-            goto fail;
-        }
-
-        block->cipher = qcrypto_cipher_new(cipheralg,
-                                           ciphermode,
-                                           masterkey, masterkeylen,
-                                           errp);
-        if (!block->cipher) {
-            ret = -ENOTSUP;
-            goto fail;
-        }
-    }
-
-    block->payload_offset = luks->header.payload_offset *
-        QCRYPTO_BLOCK_LUKS_SECTOR_SIZE;
-
-    g_free(masterkey);
-    g_free(password);
-
-    return 0;
-
- fail:
-    g_free(masterkey);
-    qcrypto_cipher_free(block->cipher);
-    qcrypto_ivgen_free(block->ivgen);
-    g_free(luks);
-    g_free(password);
-    return ret;
-}
-
-
-static int
-qcrypto_block_luks_uuid_gen(uint8_t *uuidstr, Error **errp)
-{
-#ifdef CONFIG_UUID
-    uuid_t uuid;
-    uuid_generate(uuid);
-    uuid_unparse(uuid, (char *)uuidstr);
-    return 0;
-#else
-    error_setg(errp, "Unable to generate uuids on this platform");
-    return -1;
-#endif
-}
-
-static int
-qcrypto_block_luks_create(QCryptoBlock *block,
-                          QCryptoBlockCreateOptions *options,
-                          QCryptoBlockInitFunc initfunc,
-                          QCryptoBlockWriteFunc writefunc,
-                          void *opaque,
-                          Error **errp)
-{
-    QCryptoBlockLUKS *luks;
-    QCryptoBlockCreateOptionsLUKS luks_opts;
-    Error *local_err = NULL;
-    uint8_t *masterkey = NULL;
-    uint8_t *slotkey = NULL;
-    uint8_t *splitkey = NULL;
-    size_t splitkeylen = 0;
-    size_t i;
-    QCryptoCipher *cipher = NULL;
-    QCryptoIVGen *ivgen = NULL;
-    char *password;
-    const char *cipher_alg;
-    const char *cipher_mode;
-    const char *ivgen_alg;
-    const char *ivgen_hash_alg = NULL;
-    const char *hash_alg;
-    char *cipher_mode_spec = NULL;
-    QCryptoCipherAlgorithm ivcipheralg = 0;
-
-    memcpy(&luks_opts, &options->u.luks, sizeof(luks_opts));
-    if (!luks_opts.has_cipher_alg) {
-        luks_opts.cipher_alg = QCRYPTO_CIPHER_ALG_AES_256;
-    }
-    if (!luks_opts.has_cipher_mode) {
-        luks_opts.cipher_mode = QCRYPTO_CIPHER_MODE_XTS;
-    }
-    if (!luks_opts.has_ivgen_alg) {
-        luks_opts.ivgen_alg = QCRYPTO_IVGEN_ALG_PLAIN64;
-    }
-    if (!luks_opts.has_hash_alg) {
-        luks_opts.hash_alg = QCRYPTO_HASH_ALG_SHA256;
-    }
-
-    if (!options->u.luks.key_secret) {
-        error_setg(errp, "Parameter 'key-secret' is required for cipher");
-        return -1;
-    }
-    password = qcrypto_secret_lookup_as_utf8(luks_opts.key_secret, errp);
-    if (!password) {
-        return -1;
-    }
-
-    luks = g_new0(QCryptoBlockLUKS, 1);
-    block->opaque = luks;
-
-    memcpy(luks->header.magic, qcrypto_block_luks_magic,
-           QCRYPTO_BLOCK_LUKS_MAGIC_LEN);
-
-    /* We populate the header in native endianness initially and
-     * then convert everything to big endian just before writing
-     * it out to disk
-     */
-    luks->header.version = QCRYPTO_BLOCK_LUKS_VERSION;
-    if (qcrypto_block_luks_uuid_gen(luks->header.uuid,
-                                    errp) < 0) {
-        goto error;
-    }
-
-    cipher_alg = qcrypto_block_luks_cipher_alg_lookup(luks_opts.cipher_alg,
-                                                      errp);
-    if (!cipher_alg) {
-        goto error;
-    }
-
-    cipher_mode = QCryptoCipherMode_lookup[luks_opts.cipher_mode];
-    ivgen_alg = QCryptoIVGenAlgorithm_lookup[luks_opts.ivgen_alg];
-    if (luks_opts.has_ivgen_hash_alg) {
-        ivgen_hash_alg = QCryptoHashAlgorithm_lookup[luks_opts.ivgen_hash_alg];
-        cipher_mode_spec = g_strdup_printf("%s-%s:%s", cipher_mode, ivgen_alg,
-                                           ivgen_hash_alg);
-    } else {
-        cipher_mode_spec = g_strdup_printf("%s-%s", cipher_mode, ivgen_alg);
-    }
-    hash_alg = QCryptoHashAlgorithm_lookup[luks_opts.hash_alg];
-
-
-    if (strlen(cipher_alg) >= QCRYPTO_BLOCK_LUKS_CIPHER_NAME_LEN) {
-        error_setg(errp, "Cipher name '%s' is too long for LUKS header",
-                   cipher_alg);
-        goto error;
-    }
-    if (strlen(cipher_mode_spec) >= QCRYPTO_BLOCK_LUKS_CIPHER_MODE_LEN) {
-        error_setg(errp, "Cipher mode '%s' is too long for LUKS header",
-                   cipher_mode_spec);
-        goto error;
-    }
-    if (strlen(hash_alg) >= QCRYPTO_BLOCK_LUKS_HASH_SPEC_LEN) {
-        error_setg(errp, "Hash name '%s' is too long for LUKS header",
-                   hash_alg);
-        goto error;
-    }
-
-    if (luks_opts.ivgen_alg == QCRYPTO_IVGEN_ALG_ESSIV) {
-        ivcipheralg = qcrypto_block_luks_essiv_cipher(luks_opts.cipher_alg,
-                                                      luks_opts.ivgen_hash_alg,
-                                                      &local_err);
-        if (local_err) {
-            error_propagate(errp, local_err);
-            goto error;
-        }
-    } else {
-        ivcipheralg = luks_opts.cipher_alg;
-    }
-
-    strcpy(luks->header.cipher_name, cipher_alg);
-    strcpy(luks->header.cipher_mode, cipher_mode_spec);
-    strcpy(luks->header.hash_spec, hash_alg);
-
-    luks->header.key_bytes = qcrypto_cipher_get_key_len(luks_opts.cipher_alg);
-    if (luks_opts.cipher_mode == QCRYPTO_CIPHER_MODE_XTS) {
-        luks->header.key_bytes *= 2;
-    }
-
-    /* Generate the salt used for hashing the master key
-     * with PBKDF later
-     */
-    if (qcrypto_random_bytes(luks->header.master_key_salt,
-                             QCRYPTO_BLOCK_LUKS_SALT_LEN,
-                             errp) < 0) {
-        goto error;
-    }
-
-    /* Generate random master key */
-    masterkey = g_new0(uint8_t, luks->header.key_bytes);
-    if (qcrypto_random_bytes(masterkey,
-                             luks->header.key_bytes, errp) < 0) {
-        goto error;
-    }
-
-
-    /* Setup the block device payload encryption objects */
-    block->cipher = qcrypto_cipher_new(luks_opts.cipher_alg,
-                                       luks_opts.cipher_mode,
-                                       masterkey, luks->header.key_bytes,
-                                       errp);
-    if (!block->cipher) {
-        goto error;
-    }
-
-    block->kdfhash = luks_opts.hash_alg;
-    block->niv = qcrypto_cipher_get_iv_len(luks_opts.cipher_alg,
-                                           luks_opts.cipher_mode);
-    block->ivgen = qcrypto_ivgen_new(luks_opts.ivgen_alg,
-                                     ivcipheralg,
-                                     luks_opts.ivgen_hash_alg,
-                                     masterkey, luks->header.key_bytes,
-                                     errp);
-
-    if (!block->ivgen) {
-        goto error;
-    }
-
-
-    /* Determine how many iterations we need to hash the master
-     * key, in order to have 1 second of compute time used
-     */
-    luks->header.master_key_iterations =
-        qcrypto_pbkdf2_count_iters(luks_opts.hash_alg,
-                                   masterkey, luks->header.key_bytes,
-                                   luks->header.master_key_salt,
-                                   QCRYPTO_BLOCK_LUKS_SALT_LEN,
-                                   &local_err);
-    if (local_err) {
-        error_propagate(errp, local_err);
-        goto error;
-    }
-
-    /* Why /= 8 ?  That matches cryptsetup, but there's no
-     * explanation why they chose /= 8... Probably so that
-     * if all 8 keyslots are active we only spend 1 second
-     * in total time to check all keys */
-    luks->header.master_key_iterations /= 8;
-    luks->header.master_key_iterations = MAX(
-        luks->header.master_key_iterations,
-        QCRYPTO_BLOCK_LUKS_MIN_MASTER_KEY_ITERS);
-
-
-    /* Hash the master key, saving the result in the LUKS
-     * header. This hash is used when opening the encrypted
-     * device to verify that the user password unlocked a
-     * valid master key
-     */
-    if (qcrypto_pbkdf2(luks_opts.hash_alg,
-                       masterkey, luks->header.key_bytes,
-                       luks->header.master_key_salt,
-                       QCRYPTO_BLOCK_LUKS_SALT_LEN,
-                       luks->header.master_key_iterations,
-                       luks->header.master_key_digest,
-                       QCRYPTO_BLOCK_LUKS_DIGEST_LEN,
-                       errp) < 0) {
-        goto error;
-    }
-
-
-    /* Although LUKS has multiple key slots, we're just going
-     * to use the first key slot */
-    splitkeylen = luks->header.key_bytes * QCRYPTO_BLOCK_LUKS_STRIPES;
-    for (i = 0; i < QCRYPTO_BLOCK_LUKS_NUM_KEY_SLOTS; i++) {
-        luks->header.key_slots[i].active = i == 0 ?
-            QCRYPTO_BLOCK_LUKS_KEY_SLOT_ENABLED :
-            QCRYPTO_BLOCK_LUKS_KEY_SLOT_DISABLED;
-        luks->header.key_slots[i].stripes = QCRYPTO_BLOCK_LUKS_STRIPES;
-
-        /* This calculation doesn't match that shown in the spec,
-         * but instead follows the cryptsetup implementation.
-         */
-        luks->header.key_slots[i].key_offset =
-            (QCRYPTO_BLOCK_LUKS_KEY_SLOT_OFFSET /
-             QCRYPTO_BLOCK_LUKS_SECTOR_SIZE) +
-            (ROUND_UP(((splitkeylen + (QCRYPTO_BLOCK_LUKS_SECTOR_SIZE - 1)) /
-                       QCRYPTO_BLOCK_LUKS_SECTOR_SIZE),
-                      (QCRYPTO_BLOCK_LUKS_KEY_SLOT_OFFSET /
-                       QCRYPTO_BLOCK_LUKS_SECTOR_SIZE)) * i);
-    }
-
-    if (qcrypto_random_bytes(luks->header.key_slots[0].salt,
-                             QCRYPTO_BLOCK_LUKS_SALT_LEN,
-                             errp) < 0) {
-        goto error;
-    }
-
-    /* Again we determine how many iterations are required to
-     * hash the user password while consuming 1 second of compute
-     * time */
-    luks->header.key_slots[0].iterations =
-        qcrypto_pbkdf2_count_iters(luks_opts.hash_alg,
-                                   (uint8_t *)password, strlen(password),
-                                   luks->header.key_slots[0].salt,
-                                   QCRYPTO_BLOCK_LUKS_SALT_LEN,
-                                   &local_err);
-    if (local_err) {
-        error_propagate(errp, local_err);
-        goto error;
-    }
-    /* Why /= 2 ?  That matches cryptsetup, but there's no
-     * explanation why they chose /= 2... */
-    luks->header.key_slots[0].iterations /= 2;
-    luks->header.key_slots[0].iterations = MAX(
-        luks->header.key_slots[0].iterations,
-        QCRYPTO_BLOCK_LUKS_MIN_SLOT_KEY_ITERS);
-
-
-    /* Generate a key that we'll use to encrypt the master
-     * key, from the user's password
-     */
-    slotkey = g_new0(uint8_t, luks->header.key_bytes);
-    if (qcrypto_pbkdf2(luks_opts.hash_alg,
-                       (uint8_t *)password, strlen(password),
-                       luks->header.key_slots[0].salt,
-                       QCRYPTO_BLOCK_LUKS_SALT_LEN,
-                       luks->header.key_slots[0].iterations,
-                       slotkey, luks->header.key_bytes,
-                       errp) < 0) {
-        goto error;
-    }
-
-
-    /* Setup the encryption objects needed to encrypt the
-     * master key material
-     */
-    cipher = qcrypto_cipher_new(luks_opts.cipher_alg,
-                                luks_opts.cipher_mode,
-                                slotkey, luks->header.key_bytes,
-                                errp);
-    if (!cipher) {
-        goto error;
-    }
-
-    ivgen = qcrypto_ivgen_new(luks_opts.ivgen_alg,
-                              ivcipheralg,
-                              luks_opts.ivgen_hash_alg,
-                              slotkey, luks->header.key_bytes,
-                              errp);
-    if (!ivgen) {
-        goto error;
-    }
-
-    /* Before storing the master key, we need to vastly
-     * increase its size, as protection against forensic
-     * disk data recovery */
-    splitkey = g_new0(uint8_t, splitkeylen);
-
-    if (qcrypto_afsplit_encode(luks_opts.hash_alg,
-                               luks->header.key_bytes,
-                               luks->header.key_slots[0].stripes,
-                               masterkey,
-                               splitkey,
-                               errp) < 0) {
-        goto error;
-    }
-
-    /* Now we encrypt the split master key with the key generated
-     * from the user's password, before storing it */
-    if (qcrypto_block_encrypt_helper(cipher, block->niv, ivgen,
-                                     QCRYPTO_BLOCK_LUKS_SECTOR_SIZE,
-                                     0,
-                                     splitkey,
-                                     splitkeylen,
-                                     errp) < 0) {
-        goto error;
-    }
-
-
-    /* The total size of the LUKS headers is the partition header + key
-     * slot headers, rounded up to the nearest sector, combined with
-     * the size of each master key material region, also rounded up
-     * to the nearest sector */
-    luks->header.payload_offset =
-        (QCRYPTO_BLOCK_LUKS_KEY_SLOT_OFFSET /
-         QCRYPTO_BLOCK_LUKS_SECTOR_SIZE) +
-        (ROUND_UP(((splitkeylen + (QCRYPTO_BLOCK_LUKS_SECTOR_SIZE - 1)) /
-                   QCRYPTO_BLOCK_LUKS_SECTOR_SIZE),
-                  (QCRYPTO_BLOCK_LUKS_KEY_SLOT_OFFSET /
-                   QCRYPTO_BLOCK_LUKS_SECTOR_SIZE)) *
-         QCRYPTO_BLOCK_LUKS_NUM_KEY_SLOTS);
-
-    block->payload_offset = luks->header.payload_offset *
-        QCRYPTO_BLOCK_LUKS_SECTOR_SIZE;
-
-    /* Reserve header space to match payload offset */
-    initfunc(block, block->payload_offset, &local_err, opaque);
-    if (local_err) {
-        error_propagate(errp, local_err);
-        goto error;
-    }
-
-    /* Everything on disk uses Big Endian, so flip header fields
-     * before writing them */
-    cpu_to_be16s(&luks->header.version);
-    cpu_to_be32s(&luks->header.payload_offset);
-    cpu_to_be32s(&luks->header.key_bytes);
-    cpu_to_be32s(&luks->header.master_key_iterations);
-
-    for (i = 0; i < QCRYPTO_BLOCK_LUKS_NUM_KEY_SLOTS; i++) {
-        cpu_to_be32s(&luks->header.key_slots[i].active);
-        cpu_to_be32s(&luks->header.key_slots[i].iterations);
-        cpu_to_be32s(&luks->header.key_slots[i].key_offset);
-        cpu_to_be32s(&luks->header.key_slots[i].stripes);
-    }
-
-
-    /* Write out the partition header and key slot headers */
-    writefunc(block, 0,
-              (const uint8_t *)&luks->header,
-              sizeof(luks->header),
-              &local_err,
-              opaque);
-
-    /* Delay checking local_err until we've byte-swapped */
-
-    /* Byte swap the header back to native, in case we need
-     * to read it again later */
-    be16_to_cpus(&luks->header.version);
-    be32_to_cpus(&luks->header.payload_offset);
-    be32_to_cpus(&luks->header.key_bytes);
-    be32_to_cpus(&luks->header.master_key_iterations);
-
-    for (i = 0; i < QCRYPTO_BLOCK_LUKS_NUM_KEY_SLOTS; i++) {
-        be32_to_cpus(&luks->header.key_slots[i].active);
-        be32_to_cpus(&luks->header.key_slots[i].iterations);
-        be32_to_cpus(&luks->header.key_slots[i].key_offset);
-        be32_to_cpus(&luks->header.key_slots[i].stripes);
-    }
-
-    if (local_err) {
-        error_propagate(errp, local_err);
-        goto error;
-    }
-
-    /* Write out the master key material, starting at the
-     * sector immediately following the partition header. */
-    if (writefunc(block,
-                  luks->header.key_slots[0].key_offset *
-                  QCRYPTO_BLOCK_LUKS_SECTOR_SIZE,
-                  splitkey, splitkeylen,
-                  errp,
-                  opaque) != splitkeylen) {
-        goto error;
-    }
-
-    memset(masterkey, 0, luks->header.key_bytes);
-    g_free(masterkey);
-    memset(slotkey, 0, luks->header.key_bytes);
-    g_free(slotkey);
-    g_free(splitkey);
-    g_free(password);
-    g_free(cipher_mode_spec);
-
-    qcrypto_ivgen_free(ivgen);
-    qcrypto_cipher_free(cipher);
-
-    return 0;
-
- error:
-    if (masterkey) {
-        memset(masterkey, 0, luks->header.key_bytes);
-    }
-    g_free(masterkey);
-    if (slotkey) {
-        memset(slotkey, 0, luks->header.key_bytes);
-    }
-    g_free(slotkey);
-    g_free(splitkey);
-    g_free(password);
-    g_free(cipher_mode_spec);
-
-    qcrypto_ivgen_free(ivgen);
-    qcrypto_cipher_free(cipher);
-
-    g_free(luks);
-    return -1;
-}
-
-
-static void qcrypto_block_luks_cleanup(QCryptoBlock *block)
-{
-    g_free(block->opaque);
-}
-
-
-static int
-qcrypto_block_luks_decrypt(QCryptoBlock *block,
-                           uint64_t startsector,
-                           uint8_t *buf,
-                           size_t len,
-                           Error **errp)
-{
-    return qcrypto_block_decrypt_helper(block->cipher,
-                                        block->niv, block->ivgen,
-                                        QCRYPTO_BLOCK_LUKS_SECTOR_SIZE,
-                                        startsector, buf, len, errp);
-}
-
-
-static int
-qcrypto_block_luks_encrypt(QCryptoBlock *block,
-                           uint64_t startsector,
-                           uint8_t *buf,
-                           size_t len,
-                           Error **errp)
-{
-    return qcrypto_block_encrypt_helper(block->cipher,
-                                        block->niv, block->ivgen,
-                                        QCRYPTO_BLOCK_LUKS_SECTOR_SIZE,
-                                        startsector, buf, len, errp);
-}
-
-
-const QCryptoBlockDriver qcrypto_block_driver_luks = {
-    .open = qcrypto_block_luks_open,
-    .create = qcrypto_block_luks_create,
-    .cleanup = qcrypto_block_luks_cleanup,
-    .decrypt = qcrypto_block_luks_decrypt,
-    .encrypt = qcrypto_block_luks_encrypt,
-    .has_format = qcrypto_block_luks_has_format,
-};