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1 | /* |
2 | * Copyright (c) 2010-2014, The Linux Foundation. All rights reserved. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 and | |
6 | * only version 2 as published by the Free Software Foundation. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | */ | |
13 | ||
14 | #ifndef _SHA_H_ | |
15 | #define _SHA_H_ | |
16 | ||
17 | #include <crypto/scatterwalk.h> | |
18 | #include <crypto/sha.h> | |
19 | ||
20 | #include "common.h" | |
21 | #include "core.h" | |
22 | ||
23 | #define QCE_SHA_MAX_BLOCKSIZE SHA256_BLOCK_SIZE | |
24 | #define QCE_SHA_MAX_DIGESTSIZE SHA256_DIGEST_SIZE | |
25 | ||
26 | struct qce_sha_ctx { | |
27 | u8 authkey[QCE_SHA_MAX_BLOCKSIZE]; | |
28 | }; | |
29 | ||
30 | /** | |
31 | * struct qce_sha_reqctx - holds private ahash objects per request | |
32 | * @buf: used during update, import and export | |
33 | * @tmpbuf: buffer for internal use | |
34 | * @digest: calculated digest buffer | |
35 | * @buflen: length of the buffer | |
36 | * @flags: operation flags | |
37 | * @src_orig: original request sg list | |
38 | * @nbytes_orig: original request number of bytes | |
ec8f5d8f SV |
39 | * @src_nents: source number of entries |
40 | * @byte_count: byte count | |
41 | * @count: save count in states during update, import and export | |
42 | * @first_blk: is it the first block | |
43 | * @last_blk: is it the last block | |
44 | * @sg: used to chain sg lists | |
45 | * @authkey: pointer to auth key in sha ctx | |
46 | * @authklen: auth key length | |
47 | * @result_sg: scatterlist used for result buffer | |
48 | */ | |
49 | struct qce_sha_reqctx { | |
50 | u8 buf[QCE_SHA_MAX_BLOCKSIZE]; | |
51 | u8 tmpbuf[QCE_SHA_MAX_BLOCKSIZE]; | |
52 | u8 digest[QCE_SHA_MAX_DIGESTSIZE]; | |
53 | unsigned int buflen; | |
54 | unsigned long flags; | |
55 | struct scatterlist *src_orig; | |
56 | unsigned int nbytes_orig; | |
ec8f5d8f SV |
57 | int src_nents; |
58 | __be32 byte_count[2]; | |
59 | u64 count; | |
60 | bool first_blk; | |
61 | bool last_blk; | |
62 | struct scatterlist sg[2]; | |
63 | u8 *authkey; | |
64 | unsigned int authklen; | |
65 | struct scatterlist result_sg; | |
66 | }; | |
67 | ||
68 | static inline struct qce_alg_template *to_ahash_tmpl(struct crypto_tfm *tfm) | |
69 | { | |
70 | struct crypto_ahash *ahash = __crypto_ahash_cast(tfm); | |
71 | struct ahash_alg *alg = container_of(crypto_hash_alg_common(ahash), | |
72 | struct ahash_alg, halg); | |
73 | ||
74 | return container_of(alg, struct qce_alg_template, alg.ahash); | |
75 | } | |
76 | ||
77 | extern const struct qce_algo_ops ahash_ops; | |
78 | ||
79 | #endif /* _SHA_H_ */ |