cipher: fix leak on initialization error

[qemu.git] / qapi / crypto.json

# -*- Mode: Python -*-
#
# QAPI crypto definitions

##
# @QCryptoTLSCredsEndpoint:
#
# The type of network endpoint that will be using the credentials.
# Most types of credential require different setup / structures
# depending on whether they will be used in a server versus a
# client.
#
# @client: the network endpoint is acting as the client
#
# @server: the network endpoint is acting as the server
#
# Since: 2.5
##
{ 'enum': 'QCryptoTLSCredsEndpoint',
  'prefix': 'QCRYPTO_TLS_CREDS_ENDPOINT',
  'data': ['client', 'server']}


##
# @QCryptoSecretFormat:
#
# The data format that the secret is provided in
#
# @raw: raw bytes. When encoded in JSON only valid UTF-8 sequences can be used
# @base64: arbitrary base64 encoded binary data
# Since: 2.6
##
{ 'enum': 'QCryptoSecretFormat',
  'prefix': 'QCRYPTO_SECRET_FORMAT',
  'data': ['raw', 'base64']}


##
# @QCryptoHashAlgorithm:
#
# The supported algorithms for computing content digests
#
# @md5: MD5. Should not be used in any new code, legacy compat only
# @sha1: SHA-1. Should not be used in any new code, legacy compat only
# @sha224: SHA-224. (since 2.7)
# @sha256: SHA-256. Current recommended strong hash.
# @sha384: SHA-384. (since 2.7)
# @sha512: SHA-512. (since 2.7)
# @ripemd160: RIPEMD-160. (since 2.7)
# Since: 2.6
##
{ 'enum': 'QCryptoHashAlgorithm',
  'prefix': 'QCRYPTO_HASH_ALG',
  'data': ['md5', 'sha1', 'sha224', 'sha256', 'sha384', 'sha512', 'ripemd160']}


##
# @QCryptoCipherAlgorithm:
#
# The supported algorithms for content encryption ciphers
#
# @aes-128: AES with 128 bit / 16 byte keys
# @aes-192: AES with 192 bit / 24 byte keys
# @aes-256: AES with 256 bit / 32 byte keys
# @des-rfb: RFB specific variant of single DES. Do not use except in VNC.
# @cast5-128: Cast5 with 128 bit / 16 byte keys
# @serpent-128: Serpent with 128 bit / 16 byte keys
# @serpent-192: Serpent with 192 bit / 24 byte keys
# @serpent-256: Serpent with 256 bit / 32 byte keys
# @twofish-128: Twofish with 128 bit / 16 byte keys
# @twofish-192: Twofish with 192 bit / 24 byte keys
# @twofish-256: Twofish with 256 bit / 32 byte keys
# Since: 2.6
##
{ 'enum': 'QCryptoCipherAlgorithm',
  'prefix': 'QCRYPTO_CIPHER_ALG',
  'data': ['aes-128', 'aes-192', 'aes-256',
           'des-rfb',
           'cast5-128',
           'serpent-128', 'serpent-192', 'serpent-256',
           'twofish-128', 'twofish-192', 'twofish-256']}


##
# @QCryptoCipherMode:
#
# The supported modes for content encryption ciphers
#
# @ecb: Electronic Code Book
# @cbc: Cipher Block Chaining
# @xts: XEX with tweaked code book and ciphertext stealing
# @ctr: Counter (Since 2.8)
# Since: 2.6
##
{ 'enum': 'QCryptoCipherMode',
  'prefix': 'QCRYPTO_CIPHER_MODE',
  'data': ['ecb', 'cbc', 'xts', 'ctr']}


##
# @QCryptoIVGenAlgorithm:
#
# The supported algorithms for generating initialization
# vectors for full disk encryption. The 'plain' generator
# should not be used for disks with sector numbers larger
# than 2^32, except where compatibility with pre-existing
# Linux dm-crypt volumes is required.
#
# @plain: 64-bit sector number truncated to 32-bits
# @plain64: 64-bit sector number
# @essiv: 64-bit sector number encrypted with a hash of the encryption key
# Since: 2.6
##
{ 'enum': 'QCryptoIVGenAlgorithm',
  'prefix': 'QCRYPTO_IVGEN_ALG',
  'data': ['plain', 'plain64', 'essiv']}

##
# @QCryptoBlockFormat:
#
# The supported full disk encryption formats
#
# @qcow: QCow/QCow2 built-in AES-CBC encryption. Use only
#        for liberating data from old images.
# @luks: LUKS encryption format. Recommended for new images
#
# Since: 2.6
##
{ 'enum': 'QCryptoBlockFormat',
#  'prefix': 'QCRYPTO_BLOCK_FORMAT',
  'data': ['qcow', 'luks']}

##
# @QCryptoBlockOptionsBase:
#
# The common options that apply to all full disk
# encryption formats
#
# @format: the encryption format
#
# Since: 2.6
##
{ 'struct': 'QCryptoBlockOptionsBase',
  'data': { 'format': 'QCryptoBlockFormat' }}

##
# @QCryptoBlockOptionsQCow:
#
# The options that apply to QCow/QCow2 AES-CBC encryption format
#
# @key-secret: #optional the ID of a QCryptoSecret object providing the
#              decryption key. Mandatory except when probing image for
#              metadata only.
#
# Since: 2.6
##
{ 'struct': 'QCryptoBlockOptionsQCow',
  'data': { '*key-secret': 'str' }}

##
# @QCryptoBlockOptionsLUKS:
#
# The options that apply to LUKS encryption format
#
# @key-secret: #optional the ID of a QCryptoSecret object providing the
#              decryption key. Mandatory except when probing image for
#              metadata only.
# Since: 2.6
##
{ 'struct': 'QCryptoBlockOptionsLUKS',
  'data': { '*key-secret': 'str' }}


##
# @QCryptoBlockCreateOptionsLUKS:
#
# The options that apply to LUKS encryption format initialization
#
# @cipher-alg: #optional the cipher algorithm for data encryption
#              Currently defaults to 'aes'.
# @cipher-mode: #optional the cipher mode for data encryption
#               Currently defaults to 'cbc'
# @ivgen-alg: #optional the initialization vector generator
#             Currently defaults to 'essiv'
# @ivgen-hash-alg: #optional the initialization vector generator hash
#                  Currently defaults to 'sha256'
# @hash-alg: #optional the master key hash algorithm
#            Currently defaults to 'sha256'
# @iter-time: #optional number of milliseconds to spend in
#             PBKDF passphrase processing. Currently defaults
#             to 2000. (since 2.8)
# Since: 2.6
##
{ 'struct': 'QCryptoBlockCreateOptionsLUKS',
  'base': 'QCryptoBlockOptionsLUKS',
  'data': { '*cipher-alg': 'QCryptoCipherAlgorithm',
            '*cipher-mode': 'QCryptoCipherMode',
            '*ivgen-alg': 'QCryptoIVGenAlgorithm',
            '*ivgen-hash-alg': 'QCryptoHashAlgorithm',
            '*hash-alg': 'QCryptoHashAlgorithm',
            '*iter-time': 'int'}}


##
# @QCryptoBlockOpenOptions:
#
# The options that are available for all encryption formats
# when opening an existing volume
#
# Since: 2.6
##
{ 'union': 'QCryptoBlockOpenOptions',
  'base': 'QCryptoBlockOptionsBase',
  'discriminator': 'format',
  'data': { 'qcow': 'QCryptoBlockOptionsQCow',
            'luks': 'QCryptoBlockOptionsLUKS' } }


##
# @QCryptoBlockCreateOptions:
#
# The options that are available for all encryption formats
# when initializing a new volume
#
# Since: 2.6
##
{ 'union': 'QCryptoBlockCreateOptions',
  'base': 'QCryptoBlockOptionsBase',
  'discriminator': 'format',
  'data': { 'qcow': 'QCryptoBlockOptionsQCow',
            'luks': 'QCryptoBlockCreateOptionsLUKS' } }


##
# @QCryptoBlockInfoBase:
#
# The common information that applies to all full disk
# encryption formats
#
# @format: the encryption format
#
# Since: 2.7
##
{ 'struct': 'QCryptoBlockInfoBase',
  'data': { 'format': 'QCryptoBlockFormat' }}


##
# @QCryptoBlockInfoLUKSSlot:
#
# Information about the LUKS block encryption key
# slot options
#
# @active: whether the key slot is currently in use
# @key-offset: offset to the key material in bytes
# @iters: #optional number of PBKDF2 iterations for key material
# @stripes: #optional number of stripes for splitting key material
#
# Since: 2.7
##
{ 'struct': 'QCryptoBlockInfoLUKSSlot',
  'data': {'active': 'bool',
           '*iters': 'int',
           '*stripes': 'int',
           'key-offset': 'int' } }


##
# @QCryptoBlockInfoLUKS:
#
# Information about the LUKS block encryption options
#
# @cipher-alg: the cipher algorithm for data encryption
# @cipher-mode: the cipher mode for data encryption
# @ivgen-alg: the initialization vector generator
# @ivgen-hash-alg: #optional the initialization vector generator hash
# @hash-alg: the master key hash algorithm
# @payload-offset: offset to the payload data in bytes
# @master-key-iters: number of PBKDF2 iterations for key material
# @uuid: unique identifier for the volume
# @slots: information about each key slot
#
# Since: 2.7
##
{ 'struct': 'QCryptoBlockInfoLUKS',
  'data': {'cipher-alg': 'QCryptoCipherAlgorithm',
           'cipher-mode': 'QCryptoCipherMode',
           'ivgen-alg': 'QCryptoIVGenAlgorithm',
           '*ivgen-hash-alg': 'QCryptoHashAlgorithm',
           'hash-alg': 'QCryptoHashAlgorithm',
           'payload-offset': 'int',
           'master-key-iters': 'int',
           'uuid': 'str',
           'slots': [ 'QCryptoBlockInfoLUKSSlot' ] }}

##
# @QCryptoBlockInfoQCow:
#
# Information about the QCow block encryption options
#
# Since: 2.7
##
{ 'struct': 'QCryptoBlockInfoQCow',
  'data': { }}


##
# @QCryptoBlockInfo:
#
# Information about the block encryption options
#
# Since: 2.7
##
{ 'union': 'QCryptoBlockInfo',
  'base': 'QCryptoBlockInfoBase',
  'discriminator': 'format',
  'data': { 'qcow': 'QCryptoBlockInfoQCow',
            'luks': 'QCryptoBlockInfoLUKS' } }