block/crypto.h

   1 /*
   2  * QEMU block full disk encryption
   3  *
   4  * Copyright (c) 2015-2017 Red Hat, Inc.
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  18  *
  19  */
  20
  21 #ifndef BLOCK_CRYPTO_H__
  22 #define BLOCK_CRYPTO_H__
  23
  24 #define BLOCK_CRYPTO_OPT_DEF_KEY_SECRET(prefix, helpstr)                \
  25     {                                                                   \
  26         .name = prefix BLOCK_CRYPTO_OPT_QCOW_KEY_SECRET,                \
  27         .type = QEMU_OPT_STRING,                                        \
  28         .help = helpstr,                                                \
  29     }
  30
  31 #define BLOCK_CRYPTO_OPT_QCOW_KEY_SECRET "key-secret"
  32
  33 #define BLOCK_CRYPTO_OPT_DEF_QCOW_KEY_SECRET(prefix)                    \
  34     BLOCK_CRYPTO_OPT_DEF_KEY_SECRET(prefix,                             \
  35         "ID of the secret that provides the AES encryption key")
  36
  37 #define BLOCK_CRYPTO_OPT_LUKS_KEY_SECRET "key-secret"
  38 #define BLOCK_CRYPTO_OPT_LUKS_CIPHER_ALG "cipher-alg"
  39 #define BLOCK_CRYPTO_OPT_LUKS_CIPHER_MODE "cipher-mode"
  40 #define BLOCK_CRYPTO_OPT_LUKS_IVGEN_ALG "ivgen-alg"
  41 #define BLOCK_CRYPTO_OPT_LUKS_IVGEN_HASH_ALG "ivgen-hash-alg"
  42 #define BLOCK_CRYPTO_OPT_LUKS_HASH_ALG "hash-alg"
  43 #define BLOCK_CRYPTO_OPT_LUKS_ITER_TIME "iter-time"
  44
  45 #define BLOCK_CRYPTO_OPT_DEF_LUKS_KEY_SECRET(prefix)                    \
  46     BLOCK_CRYPTO_OPT_DEF_KEY_SECRET(prefix,                             \
  47         "ID of the secret that provides the keyslot passphrase")
  48
  49 #define BLOCK_CRYPTO_OPT_DEF_LUKS_CIPHER_ALG(prefix)       \
  50     {                                                      \
  51         .name = prefix BLOCK_CRYPTO_OPT_LUKS_CIPHER_ALG,   \
  52         .type = QEMU_OPT_STRING,                           \
  53         .help = "Name of encryption cipher algorithm",     \
  54     }
  55
  56 #define BLOCK_CRYPTO_OPT_DEF_LUKS_CIPHER_MODE(prefix)      \
  57     {                                                      \
  58         .name = prefix BLOCK_CRYPTO_OPT_LUKS_CIPHER_MODE,  \
  59         .type = QEMU_OPT_STRING,                           \
  60         .help = "Name of encryption cipher mode",          \
  61     }
  62
  63 #define BLOCK_CRYPTO_OPT_DEF_LUKS_IVGEN_ALG(prefix)     \
  64     {                                                   \
  65         .name = prefix BLOCK_CRYPTO_OPT_LUKS_IVGEN_ALG, \
  66         .type = QEMU_OPT_STRING,                        \
  67         .help = "Name of IV generator algorithm",       \
  68     }
  69
  70 #define BLOCK_CRYPTO_OPT_DEF_LUKS_IVGEN_HASH_ALG(prefix)        \
  71     {                                                           \
  72         .name = prefix BLOCK_CRYPTO_OPT_LUKS_IVGEN_HASH_ALG,    \
  73         .type = QEMU_OPT_STRING,                                \
  74         .help = "Name of IV generator hash algorithm",          \
  75     }
  76
  77 #define BLOCK_CRYPTO_OPT_DEF_LUKS_HASH_ALG(prefix)       \
  78     {                                                    \
  79         .name = prefix BLOCK_CRYPTO_OPT_LUKS_HASH_ALG,   \
  80         .type = QEMU_OPT_STRING,                         \
  81         .help = "Name of encryption hash algorithm",     \
  82     }
  83
  84 #define BLOCK_CRYPTO_OPT_DEF_LUKS_ITER_TIME(prefix)           \
  85     {                                                         \
  86         .name = prefix BLOCK_CRYPTO_OPT_LUKS_ITER_TIME,       \
  87         .type = QEMU_OPT_NUMBER,                              \
  88         .help = "Time to spend in PBKDF in milliseconds",     \
  89     }
  90
  91 QCryptoBlockCreateOptions *
  92 block_crypto_create_opts_init(QCryptoBlockFormat format,
  93                               QDict *opts,
  94                               Error **errp);
  95
  96 QCryptoBlockOpenOptions *
  97 block_crypto_open_opts_init(QCryptoBlockFormat format,
  98                             QDict *opts,
  99                             Error **errp);
 100
 101 #endif /* BLOCK_CRYPTO_H__ */