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crypto: sha256 - Merge crypto/sha256.h into crypto/sha.h 

The generic sha256 implementation from lib/crypto/sha256.c uses data
structs defined in crypto/sha.h, so lets move the function prototypes
there too.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Hans de Goede 2019-09-01 22:35:31 +02:00 committed by Herbert Xu
parent 527aa8958f
commit 34d6245fbc
6 changed files with 24 additions and 38 deletions
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2
arch/s390/purgatory/purgatory.c
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@ -9,7 +9,7 @@
#include <linux/kexec.h>
#include <linux/string.h>
#include <crypto/sha256.h>
#include <crypto/sha.h>
#include <asm/purgatory.h>
int verify_sha256_digest(void)

2
arch/x86/purgatory/purgatory.c
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@ -9,7 +9,7 @@
*/
#include <linux/bug.h>
#include <crypto/sha256.h>
#include <crypto/sha.h>
#include <asm/purgatory.h>
#include "../boot/string.h"

1
crypto/sha256_generic.c
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@ -13,7 +13,6 @@
#include <linux/mm.h>
#include <linux/types.h>
#include <crypto/sha.h>
#include <crypto/sha256.h>
#include <crypto/sha256_base.h>
#include <asm/byteorder.h>
#include <asm/unaligned.h>

21
include/crypto/sha.h
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@ -112,4 +112,25 @@ extern int crypto_sha512_update(struct shash_desc *desc, const u8 *data,
extern int crypto_sha512_finup(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *hash);
/*
* Stand-alone implementation of the SHA256 algorithm. It is designed to
* have as little dependencies as possible so it can be used in the
* kexec_file purgatory. In other cases you should generally use the
* hash APIs from include/crypto/hash.h. Especially when hashing large
* amounts of data as those APIs may be hw-accelerated.
*
* For details see lib/crypto/sha256.c
*/
extern int sha256_init(struct sha256_state *sctx);
extern int sha256_update(struct sha256_state *sctx, const u8 *input,
unsigned int length);
extern int sha256_final(struct sha256_state *sctx, u8 *hash);
extern int sha224_init(struct sha256_state *sctx);
extern int sha224_update(struct sha256_state *sctx, const u8 *input,
unsigned int length);
extern int sha224_final(struct sha256_state *sctx, u8 *hash);
#endif

34
include/crypto/sha256.h
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@ -1,34 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2014 Red Hat Inc.
*
* Author: Vivek Goyal <vgoyal@redhat.com>
*/
#ifndef SHA256_H
#define SHA256_H
#include <linux/types.h>
#include <crypto/sha.h>
/*
* Stand-alone implementation of the SHA256 algorithm. It is designed to
* have as little dependencies as possible so it can be used in the
* kexec_file purgatory. In other cases you should generally use the
* hash APIs from include/crypto/hash.h. Especially when hashing large
* amounts of data as those APIs may be hw-accelerated.
*
* For details see lib/crypto/sha256.c
*/
extern int sha256_init(struct sha256_state *sctx);
extern int sha256_update(struct sha256_state *sctx, const u8 *input,
unsigned int length);
extern int sha256_final(struct sha256_state *sctx, u8 *hash);
extern int sha224_init(struct sha256_state *sctx);
extern int sha224_update(struct sha256_state *sctx, const u8 *input,
unsigned int length);
extern int sha224_final(struct sha256_state *sctx, u8 *hash);
#endif /* SHA256_H */

2
lib/crypto/sha256.c
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@ -15,7 +15,7 @@
#include <linux/export.h>
#include <linux/module.h>
#include <linux/string.h>
#include <crypto/sha256.h>
#include <crypto/sha.h>
#include <asm/unaligned.h>
static inline u32 Ch(u32 x, u32 y, u32 z)