| /* |
| * Copyright (c) 2010-2014, The Linux Foundation. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 and |
| * only version 2 as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| #ifndef _SHA_H_ |
| #define _SHA_H_ |
| |
| #include <crypto/scatterwalk.h> |
| #include <crypto/sha.h> |
| |
| #include "common.h" |
| #include "core.h" |
| |
| #define QCE_SHA_MAX_BLOCKSIZE SHA256_BLOCK_SIZE |
| #define QCE_SHA_MAX_DIGESTSIZE SHA256_DIGEST_SIZE |
| |
| struct qce_sha_ctx { |
| u8 authkey[QCE_SHA_MAX_BLOCKSIZE]; |
| }; |
| |
| /** |
| * struct qce_sha_reqctx - holds private ahash objects per request |
| * @buf: used during update, import and export |
| * @tmpbuf: buffer for internal use |
| * @digest: calculated digest buffer |
| * @buflen: length of the buffer |
| * @flags: operation flags |
| * @src_orig: original request sg list |
| * @nbytes_orig: original request number of bytes |
| * @src_nents: source number of entries |
| * @byte_count: byte count |
| * @count: save count in states during update, import and export |
| * @first_blk: is it the first block |
| * @last_blk: is it the last block |
| * @sg: used to chain sg lists |
| * @authkey: pointer to auth key in sha ctx |
| * @authklen: auth key length |
| * @result_sg: scatterlist used for result buffer |
| */ |
| struct qce_sha_reqctx { |
| u8 buf[QCE_SHA_MAX_BLOCKSIZE]; |
| u8 tmpbuf[QCE_SHA_MAX_BLOCKSIZE]; |
| u8 digest[QCE_SHA_MAX_DIGESTSIZE]; |
| unsigned int buflen; |
| unsigned long flags; |
| struct scatterlist *src_orig; |
| unsigned int nbytes_orig; |
| int src_nents; |
| __be32 byte_count[2]; |
| u64 count; |
| bool first_blk; |
| bool last_blk; |
| struct scatterlist sg[2]; |
| u8 *authkey; |
| unsigned int authklen; |
| struct scatterlist result_sg; |
| }; |
| |
| static inline struct qce_alg_template *to_ahash_tmpl(struct crypto_tfm *tfm) |
| { |
| struct crypto_ahash *ahash = __crypto_ahash_cast(tfm); |
| struct ahash_alg *alg = container_of(crypto_hash_alg_common(ahash), |
| struct ahash_alg, halg); |
| |
| return container_of(alg, struct qce_alg_template, alg.ahash); |
| } |
| |
| extern const struct qce_algo_ops ahash_ops; |
| |
| #endif /* _SHA_H_ */ |