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1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3  * Cryptographic API.
4  *
5  * s390 generic implementation of the SHA Secure Hash Algorithms.
6  *
7  * Copyright IBM Corp. 2007
8  * Author(s): Jan Glauber ([email protected])
9  */
10 #ifndef _CRYPTO_ARCH_S390_SHA_H
11 #define _CRYPTO_ARCH_S390_SHA_H
12
13 #include <linux/crypto.h>
14 #include <crypto/sha1.h>
15 #include <crypto/sha2.h>
16 #include <crypto/sha3.h>
17
18 /* must be big enough for the largest SHA variant */
19 #define SHA3_STATE_SIZE                 200
20 #define CPACF_MAX_PARMBLOCK_SIZE        SHA3_STATE_SIZE
21 #define SHA_MAX_BLOCK_SIZE              SHA3_224_BLOCK_SIZE
22
23 struct s390_sha_ctx {
24         u64 count;              /* message length in bytes */
25         u32 state[CPACF_MAX_PARMBLOCK_SIZE / sizeof(u32)];
26         u8 buf[SHA_MAX_BLOCK_SIZE];
27         int func;               /* KIMD function to use */
28         int first_message_part;
29 };
30
31 struct shash_desc;
32
33 int s390_sha_update(struct shash_desc *desc, const u8 *data, unsigned int len);
34 int s390_sha_final(struct shash_desc *desc, u8 *out);
35
36 #endif
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