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-rw-r--r--src/librbd/crypto/DataCryptor.h37
1 files changed, 37 insertions, 0 deletions
diff --git a/src/librbd/crypto/DataCryptor.h b/src/librbd/crypto/DataCryptor.h
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+++ b/src/librbd/crypto/DataCryptor.h
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+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#ifndef CEPH_LIBRBD_CRYPTO_DATA_CRYPTOR_H
+#define CEPH_LIBRBD_CRYPTO_DATA_CRYPTOR_H
+
+#include "include/int_types.h"
+#include "librbd/crypto/Types.h"
+
+namespace librbd {
+namespace crypto {
+
+template <typename T>
+class DataCryptor {
+
+public:
+
+ virtual ~DataCryptor() = default;
+
+ virtual uint32_t get_block_size() const = 0;
+ virtual uint32_t get_iv_size() const = 0;
+ virtual const unsigned char* get_key() const = 0;
+ virtual int get_key_length() const = 0;
+
+ virtual T* get_context(CipherMode mode) = 0;
+ virtual void return_context(T* ctx, CipherMode mode) = 0;
+
+ virtual int init_context(T* ctx, const unsigned char* iv,
+ uint32_t iv_length) const = 0;
+ virtual int update_context(T* ctx, const unsigned char* in,
+ unsigned char* out, uint32_t len) const = 0;
+};
+
+} // namespace crypto
+} // namespace librbd
+
+#endif // CEPH_LIBRBD_CRYPTO_DATA_CRYPTOR_H