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authorDaniel P. Berrange <berrange@redhat.com>2016-07-22 13:53:34 +0100
committerMax Reitz <mreitz@redhat.com>2016-07-26 17:46:37 +0200
commit40c85028228d07c878cb58fc31222fb4d163a89f (patch)
treee06d68d1478a5d956e6fea4337de995665c1b21f /include
parent54a16a63d021b2e28f08082abb20b9431d3c97d3 (diff)
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 'include')
-rw-r--r--include/crypto/block.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/include/crypto/block.h b/include/crypto/block.h
index 895521162c..b6971de921 100644
--- a/include/crypto/block.h
+++ b/include/crypto/block.h
@@ -138,6 +138,22 @@ QCryptoBlock *qcrypto_block_create(QCryptoBlockCreateOptions *options,
void *opaque,
Error **errp);
+
+/**
+ * qcrypto_block_get_info:
+ * @block: the block encryption object
+ * @errp: pointer to a NULL-initialized error object
+ *
+ * Get information about the configuration options for the
+ * block encryption object. This includes details such as
+ * the cipher algorithms, modes, and initialization vector
+ * generators.
+ *
+ * Returns: a block encryption info object, or NULL on error
+ */
+QCryptoBlockInfo *qcrypto_block_get_info(QCryptoBlock *block,
+ Error **errp);
+
/**
* @qcrypto_block_decrypt:
* @block: the block encryption object