diff options
| author | Hyman Huang <yong.huang@smartx.com> | 2024-01-30 13:37:21 +0800 |
|---|---|---|
| committer | Daniel P. Berrangé <berrange@redhat.com> | 2024-02-09 12:50:37 +0000 |
| commit | d74523a3b395dc8470177dcdfa13644b98494334 (patch) | |
| tree | 11ed4fb7871308c31292329814d888725d238a36 /include | |
| parent | 433957bb7f99d7577601949c92f2fffa9457cd7b (diff) | |
crypto: Modify the qcrypto_block_create to support creation flags
Expand the signature of qcrypto_block_create to enable the
formation of LUKS volumes with detachable headers. To accomplish
that, introduce QCryptoBlockCreateFlags to instruct the creation
process to set the payload_offset_sector to 0.
Signed-off-by: Hyman Huang <yong.huang@smartx.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/crypto/block.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/crypto/block.h b/include/crypto/block.h index d0d97f5d12..92e823c9f2 100644 --- a/include/crypto/block.h +++ b/include/crypto/block.h @@ -116,6 +116,10 @@ QCryptoBlock *qcrypto_block_open(QCryptoBlockOpenOptions *options, size_t n_threads, Error **errp); +typedef enum { + QCRYPTO_BLOCK_CREATE_DETACHED = (1 << 0), +} QCryptoBlockCreateFlags; + /** * qcrypto_block_create: * @options: the encryption options @@ -123,6 +127,7 @@ QCryptoBlock *qcrypto_block_open(QCryptoBlockOpenOptions *options, * @initfunc: callback for initializing volume header * @writefunc: callback for writing data to the volume header * @opaque: data to pass to @initfunc and @writefunc + * @flags: bitmask of QCryptoBlockCreateFlags values * @errp: pointer to a NULL-initialized error object * * Create a new block encryption object for initializing @@ -134,6 +139,11 @@ QCryptoBlock *qcrypto_block_open(QCryptoBlockOpenOptions *options, * generating new master keys, etc as required. Any existing * data present on the volume will be irrevocably destroyed. * + * If @flags contains QCRYPTO_BLOCK_CREATE_DETACHED then + * the open process will set the payload_offset_sector to 0 + * to specify the starting point for the read/write of a + * detached LUKS header image. + * * If any part of initializing the encryption context * fails an error will be returned. This could be due * to the volume being in the wrong format, a cipher @@ -147,6 +157,7 @@ QCryptoBlock *qcrypto_block_create(QCryptoBlockCreateOptions *options, QCryptoBlockInitFunc initfunc, QCryptoBlockWriteFunc writefunc, void *opaque, + unsigned int flags, Error **errp); /** |