drivers/crypto/qce/sha.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Copyright (c) 2010-2014, The Linux Foundation. All rights reserved.
   4  */
   5
   6 #ifndef _SHA_H_
   7 #define _SHA_H_
   8
   9 #include <crypto/scatterwalk.h>
  10 #include <crypto/sha.h>
  11
  12 #include "common.h"
  13 #include "core.h"
  14
  15 #define QCE_SHA_MAX_BLOCKSIZE           SHA256_BLOCK_SIZE
  16 #define QCE_SHA_MAX_DIGESTSIZE          SHA256_DIGEST_SIZE
  17
  18 struct qce_sha_ctx {
  19         u8 authkey[QCE_SHA_MAX_BLOCKSIZE];
  20 };
  21
  22 /**
  23  * struct qce_sha_reqctx - holds private ahash objects per request
  24  * @buf: used during update, import and export
  25  * @tmpbuf: buffer for internal use
  26  * @digest: calculated digest buffer
  27  * @buflen: length of the buffer
  28  * @flags: operation flags
  29  * @src_orig: original request sg list
  30  * @nbytes_orig: original request number of bytes
  31  * @src_nents: source number of entries
  32  * @byte_count: byte count
  33  * @count: save count in states during update, import and export
  34  * @first_blk: is it the first block
  35  * @last_blk: is it the last block
  36  * @sg: used to chain sg lists
  37  * @authkey: pointer to auth key in sha ctx
  38  * @authklen: auth key length
  39  * @result_sg: scatterlist used for result buffer
  40  */
  41 struct qce_sha_reqctx {
  42         u8 buf[QCE_SHA_MAX_BLOCKSIZE];
  43         u8 tmpbuf[QCE_SHA_MAX_BLOCKSIZE];
  44         u8 digest[QCE_SHA_MAX_DIGESTSIZE];
  45         unsigned int buflen;
  46         unsigned long flags;
  47         struct scatterlist *src_orig;
  48         unsigned int nbytes_orig;
  49         int src_nents;
  50         __be32 byte_count[2];
  51         u64 count;
  52         bool first_blk;
  53         bool last_blk;
  54         struct scatterlist sg[2];
  55         u8 *authkey;
  56         unsigned int authklen;
  57         struct scatterlist result_sg;
  58 };
  59
  60 static inline struct qce_alg_template *to_ahash_tmpl(struct crypto_tfm *tfm)
  61 {
  62         struct crypto_ahash *ahash = __crypto_ahash_cast(tfm);
  63         struct ahash_alg *alg = container_of(crypto_hash_alg_common(ahash),
  64                                              struct ahash_alg, halg);
  65
  66         return container_of(alg, struct qce_alg_template, alg.ahash);
  67 }
  68
  69 extern const struct qce_algo_ops ahash_ops;
  70
  71 #endif /* _SHA_H_ */