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| author | Daniel P. Berrange <berrange@redhat.com> | 2015-10-24 11:44:13 +0100 |
|---|---|---|
| committer | Daniel P. Berrange <berrange@redhat.com> | 2016-03-17 14:41:15 +0000 |
| commit | 7d9690148ac25bc755a759adab7d63f517d092b1 (patch) | |
| tree | 4d0602424dc0864328c4c6617f318d646a3a0f51 /qapi | |
| parent | eaec903c5b830ed9d9610ba72072b97763c2f996 (diff) | |
| download | qemu-7d9690148ac25bc755a759adab7d63f517d092b1.tar.gz qemu-7d9690148ac25bc755a759adab7d63f517d092b1.tar.bz2 qemu-7d9690148ac25bc755a759adab7d63f517d092b1.zip | |
crypto: add block encryption framework
Add a generic framework for supporting different block encryption
formats. Upon instantiating a QCryptoBlock object, it will read
the encryption header and extract the encryption keys. It is
then possible to call methods to encrypt/decrypt data buffers.
There is also a mode whereby it will create/initialize a new
encryption header on a previously unformatted volume.
The initial framework comes with support for the legacy QCow
AES based encryption. This enables code in the QCow driver to
be consolidated later.
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Diffstat (limited to 'qapi')
| -rw-r--r-- | qapi/crypto.json | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/qapi/crypto.json b/qapi/crypto.json index a0314f0a47..65f46254b3 100644 --- a/qapi/crypto.json +++ b/qapi/crypto.json @@ -109,3 +109,71 @@ { '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. +# +# Since: 2.6 +## +{ 'enum': 'QCryptoBlockFormat', +# 'prefix': 'QCRYPTO_BLOCK_FORMAT', + 'data': ['qcow']} + +## +# 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' }} + +## +# 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' } } + + +## +# 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' } } |