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crypto: add support for querying parameters for block encryption

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When creating new block encryption volumes, we accept a list of
parameters to control the formatting process. It is useful to
be able to query what those parameters were for existing block
devices. Add a qcrypto_block_get_info() method which returns a
QCryptoBlockInfo instance to report this data.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1469192015-16487-2-git-send-email-berrange@redhat.com
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Daniel P. Berrange 2016-07-22 13:53:34 +01:00 • committed by Max Reitz
parent 54a16a63d0
commit 40c8502822
5 changed files with 191 additions and 0 deletions
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4
crypto/blockpriv.h
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@ -53,6 +53,10 @@ struct QCryptoBlockDriver {
void *opaque,
Error **errp);
int (*get_info)(QCryptoBlock *block,
QCryptoBlockInfo *info,
Error **errp);
void (*cleanup)(QCryptoBlock *block);
int (*encrypt)(QCryptoBlock *block,