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83d290c5 | 1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
1f9c9280 AS |
2 | /* |
3 | * Header file for SHA hardware acceleration | |
4 | * | |
5 | * Copyright (c) 2012 Samsung Electronics | |
1f9c9280 AS |
6 | */ |
7 | #ifndef __HW_SHA_H | |
8 | #define __HW_SHA_H | |
94e3c8c4 | 9 | #include <hash.h> |
1f9c9280 | 10 | |
a479f103 JS |
11 | /** |
12 | * Computes hash value of input pbuf using h/w acceleration | |
13 | * | |
14 | * @param in_addr A pointer to the input buffer | |
15 | * @param bufleni Byte length of input buffer | |
16 | * @param out_addr A pointer to the output buffer. When complete | |
17 | * 64 bytes are copied to pout[0]...pout[63]. Thus, a user | |
18 | * should allocate at least 64 bytes at pOut in advance. | |
19 | * @param chunk_size chunk size for sha512 | |
20 | */ | |
21 | void hw_sha512(const uchar *in_addr, uint buflen, uchar *out_addr, | |
22 | uint chunk_size); | |
23 | ||
24 | /** | |
25 | * Computes hash value of input pbuf using h/w acceleration | |
26 | * | |
27 | * @param in_addr A pointer to the input buffer | |
28 | * @param bufleni Byte length of input buffer | |
29 | * @param out_addr A pointer to the output buffer. When complete | |
30 | * 48 bytes are copied to pout[0]...pout[47]. Thus, a user | |
31 | * should allocate at least 48 bytes at pOut in advance. | |
32 | * @param chunk_size chunk size for sha384 | |
33 | */ | |
34 | void hw_sha384(const uchar *in_addr, uint buflen, uchar *out_addr, | |
35 | uint chunk_size); | |
36 | ||
1f9c9280 AS |
37 | /** |
38 | * Computes hash value of input pbuf using h/w acceleration | |
39 | * | |
40 | * @param in_addr A pointer to the input buffer | |
41 | * @param bufleni Byte length of input buffer | |
42 | * @param out_addr A pointer to the output buffer. When complete | |
43 | * 32 bytes are copied to pout[0]...pout[31]. Thus, a user | |
44 | * should allocate at least 32 bytes at pOut in advance. | |
45 | * @param chunk_size chunk size for sha256 | |
46 | */ | |
ba139783 JS |
47 | void hw_sha256(const uchar *in_addr, uint buflen, uchar *out_addr, |
48 | uint chunk_size); | |
1f9c9280 AS |
49 | |
50 | /** | |
51 | * Computes hash value of input pbuf using h/w acceleration | |
52 | * | |
53 | * @param in_addr A pointer to the input buffer | |
54 | * @param bufleni Byte length of input buffer | |
55 | * @param out_addr A pointer to the output buffer. When complete | |
56 | * 32 bytes are copied to pout[0]...pout[31]. Thus, a user | |
57 | * should allocate at least 32 bytes at pOut in advance. | |
58 | * @param chunk_size chunk_size for sha1 | |
59 | */ | |
ba139783 JS |
60 | void hw_sha1(const uchar *in_addr, uint buflen, uchar *out_addr, |
61 | uint chunk_size); | |
94e3c8c4 | 62 | |
63 | /* | |
64 | * Create the context for sha progressive hashing using h/w acceleration | |
65 | * | |
66 | * @algo: Pointer to the hash_algo struct | |
67 | * @ctxp: Pointer to the pointer of the context for hashing | |
185f812c | 68 | * Return: 0 if ok, -ve on error |
94e3c8c4 | 69 | */ |
70 | int hw_sha_init(struct hash_algo *algo, void **ctxp); | |
71 | ||
72 | /* | |
73 | * Update buffer for sha progressive hashing using h/w acceleration | |
74 | * | |
75 | * The context is freed by this function if an error occurs. | |
76 | * | |
77 | * @algo: Pointer to the hash_algo struct | |
78 | * @ctx: Pointer to the context for hashing | |
79 | * @buf: Pointer to the buffer being hashed | |
80 | * @size: Size of the buffer being hashed | |
81 | * @is_last: 1 if this is the last update; 0 otherwise | |
185f812c | 82 | * Return: 0 if ok, -ve on error |
94e3c8c4 | 83 | */ |
84 | int hw_sha_update(struct hash_algo *algo, void *ctx, const void *buf, | |
ba139783 | 85 | unsigned int size, int is_last); |
94e3c8c4 | 86 | |
87 | /* | |
88 | * Copy sha hash result at destination location | |
89 | * | |
90 | * The context is freed after completion of hash operation or after an error. | |
91 | * | |
92 | * @algo: Pointer to the hash_algo struct | |
93 | * @ctx: Pointer to the context for hashing | |
94 | * @dest_buf: Pointer to the destination buffer where hash is to be copied | |
95 | * @size: Size of the buffer being hashed | |
185f812c | 96 | * Return: 0 if ok, -ve on error |
94e3c8c4 | 97 | */ |
98 | int hw_sha_finish(struct hash_algo *algo, void *ctx, void *dest_buf, | |
ba139783 | 99 | int size); |
94e3c8c4 | 100 | |
1f9c9280 | 101 | #endif |