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| author | Daniel P. Berrange <berrange@redhat.com> | 2016-07-22 13:53:34 +0100 |
|---|---|---|
| committer | Max Reitz <mreitz@redhat.com> | 2016-07-26 17:46:37 +0200 |
| commit | 40c85028228d07c878cb58fc31222fb4d163a89f (patch) | |
| tree | e06d68d1478a5d956e6fea4337de995665c1b21f /crypto/block.c | |
| parent | 54a16a63d021b2e28f08082abb20b9431d3c97d3 (diff) | |
| download | qemu-40c85028228d07c878cb58fc31222fb4d163a89f.tar.gz qemu-40c85028228d07c878cb58fc31222fb4d163a89f.tar.bz2 qemu-40c85028228d07c878cb58fc31222fb4d163a89f.zip | |
crypto: add support for querying parameters for block encryption
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>
Diffstat (limited to 'crypto/block.c')
| -rw-r--r-- | crypto/block.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/crypto/block.c b/crypto/block.c index da60eba85f..be823eebeb 100644 --- a/crypto/block.c +++ b/crypto/block.c @@ -105,6 +105,23 @@ QCryptoBlock *qcrypto_block_create(QCryptoBlockCreateOptions *options, } +QCryptoBlockInfo *qcrypto_block_get_info(QCryptoBlock *block, + Error **errp) +{ + QCryptoBlockInfo *info = g_new0(QCryptoBlockInfo, 1); + + info->format = block->format; + + if (block->driver->get_info && + block->driver->get_info(block, info, errp) < 0) { + g_free(info); + return NULL; + } + + return info; +} + + int qcrypto_block_decrypt(QCryptoBlock *block, uint64_t startsector, uint8_t *buf, |