1 #ifndef _CRYPTO_XTS_H 2 #define _CRYPTO_XTS_H 3 4 #include <crypto/b128ops.h> 5 6 struct scatterlist; 7 struct blkcipher_desc; 8 9 #define XTS_BLOCK_SIZE 16 10 11 struct xts_crypt_req { 12 be128 *tbuf; 13 unsigned int tbuflen; 14 15 void *tweak_ctx; 16 void (*tweak_fn)(void *ctx, u8* dst, const u8* src); 17 void *crypt_ctx; 18 void (*crypt_fn)(void *ctx, u8 *blks, unsigned int nbytes); 19 }; 20 21 #define XTS_TWEAK_CAST(x) ((void (*)(void *, u8*, const u8*))(x)) 22 23 int xts_crypt(struct blkcipher_desc *desc, struct scatterlist *dst, 24 struct scatterlist *src, unsigned int nbytes, 25 struct xts_crypt_req *req); 26 27 #endif /* _CRYPTO_XTS_H */ 28