diff options
Diffstat (limited to 'src/librbd/crypto/luks/FlattenRequest.h')
-rw-r--r-- | src/librbd/crypto/luks/FlattenRequest.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/src/librbd/crypto/luks/FlattenRequest.h b/src/librbd/crypto/luks/FlattenRequest.h new file mode 100644 index 000000000..a1432f505 --- /dev/null +++ b/src/librbd/crypto/luks/FlattenRequest.h @@ -0,0 +1,65 @@ +// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- +// vim: ts=8 sw=2 smarttab + +#ifndef CEPH_LIBRBD_CRYPTO_LUKS_FLATTEN_REQUEST_H +#define CEPH_LIBRBD_CRYPTO_LUKS_FLATTEN_REQUEST_H + +#include "librbd/ImageCtx.h" + +namespace librbd { + +namespace crypto { +namespace luks { + +template <typename I> +class FlattenRequest { +public: + using EncryptionFormat = decltype(I::encryption_format); + + static FlattenRequest* create(I* image_ctx, Context* on_finish) { + return new FlattenRequest(image_ctx, on_finish); + } + + FlattenRequest(I* image_ctx, Context* on_finish); + void send(); + +private: + /** + * @verbatim + * + * <start> + * | + * v + * READ_HEADER + * | + * v + * WRITE_HEADER (replacing magic back from RBDL to LUKS if needed) + * | + * v + * FLUSH + * | + * v + * <finish> + * + * @endverbatim + */ + I* m_image_ctx; + Context* m_on_finish; + ceph::bufferlist m_bl; + + void read_header(); + void handle_read_header(int r); + void write_header(); + void handle_write_header(int r); + void flush(); + void handle_flush(int r); + void finish(int r); +}; + +} // namespace luks +} // namespace crypto +} // namespace librbd + +extern template class librbd::crypto::luks::FlattenRequest<librbd::ImageCtx>; + +#endif // CEPH_LIBRBD_CRYPTO_LUKS_FLATTEN_REQUEST_H |