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
18struct 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 */
41struct 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
60static 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
69extern const struct qce_algo_ops ahash_ops;
70
71#endif /* _SHA_H_ */