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 (jang@de.ibm.com)
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
23struct 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};
29
30struct shash_desc;
31
32int s390_sha_update(struct shash_desc *desc, const u8 *data, unsigned int len);
33int s390_sha_final(struct shash_desc *desc, u8 *out);
34
35#endif
36