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crypto: implement the LUKS block encryption format

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Provide a block encryption implementation that follows the
LUKS/dm-crypt specification.

This supports all combinations of hash, cipher algorithm,
cipher mode and iv generator that are implemented by the
current crypto layer.

There is support for opening existing volumes formatted
by dm-crypt, and for formatting new volumes. In the latter
case it will only use key slot 0.

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
This commit is contained in:
Daniel P. Berrange
2015-10-24 11:55:48 +01:00
parent 7d9690148a
commit 3e308f20ed
6 changed files with 1530 additions and 5 deletions
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2
crypto/block.c
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@@ -21,9 +21,11 @@
#include "qemu/osdep.h"
#include "crypto/blockpriv.h"
#include "crypto/block-qcow.h"
#include "crypto/block-luks.h"
static const QCryptoBlockDriver *qcrypto_block_drivers[] = {
[Q_CRYPTO_BLOCK_FORMAT_QCOW] = &qcrypto_block_driver_qcow,
[Q_CRYPTO_BLOCK_FORMAT_LUKS] = &qcrypto_block_driver_luks,
};