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block: pass option prefix down to crypto layer

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While the crypto layer uses a fixed option name "key-secret",
the upper block layer may have a prefix on the options. e.g.
"encrypt.key-secret", in order to avoid clashes between crypto
option names & other block option names. To ensure the crypto
layer can report accurate error messages, we must tell it what
option name prefix was used.

Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 20170623162419.26068-19-berrange@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Daniel P. Berrange 2017-06-23 17:24:17 +01:00 • committed by Max Reitz
parent c01c214b69
commit 1cd9a787a2
9 changed files with 37 additions and 20 deletions
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6
include/crypto/block.h
View file

@ -71,6 +71,7 @@ typedef enum {
/**
* qcrypto_block_open:
* @options: the encryption options
* @optprefix: name prefix for options
* @readfunc: callback for reading data from the volume
* @opaque: data to pass to @readfunc
* @flags: bitmask of QCryptoBlockOpenFlags values
@ -102,6 +103,7 @@ typedef enum {
* Returns: a block encryption format, or NULL on error
*/
QCryptoBlock *qcrypto_block_open(QCryptoBlockOpenOptions *options,
const char *optprefix,
QCryptoBlockReadFunc readfunc,
void *opaque,
unsigned int flags,
@ -109,7 +111,8 @@ QCryptoBlock *qcrypto_block_open(QCryptoBlockOpenOptions *options,
/**
* qcrypto_block_create:
* @format: the encryption format
* @options: the encryption options
* @optprefix: name prefix for options
* @initfunc: callback for initializing volume header
* @writefunc: callback for writing data to the volume header
* @opaque: data to pass to @initfunc and @writefunc
@ -133,6 +136,7 @@ QCryptoBlock *qcrypto_block_open(QCryptoBlockOpenOptions *options,
* Returns: a block encryption format, or NULL on error
*/
QCryptoBlock *qcrypto_block_create(QCryptoBlockCreateOptions *options,
const char *optprefix,
QCryptoBlockInitFunc initfunc,
QCryptoBlockWriteFunc writefunc,
void *opaque,