| Jussi Kivilinna | ce00455 | 2011-11-09 11:56:06 +0800 | [diff] [blame] | 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 */ |