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_ */ 72