[GitHub/LineageOS/android_kernel_samsung_universal7580.git] / include / crypto / internal / hash.h

/*
 * Hash algorithms.
 * 
 * Copyright (c) 2008 Herbert Xu <herbert@gondor.apana.org.au>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the Free
 * Software Foundation; either version 2 of the License, or (at your option) 
 * any later version.
 *
 */

#ifndef _CRYPTO_INTERNAL_HASH_H
#define _CRYPTO_INTERNAL_HASH_H

#include <crypto/algapi.h>
#include <crypto/hash.h>

struct ahash_request;
struct scatterlist;

struct crypto_hash_walk {
	char *data;

	unsigned int offset;
	unsigned int alignmask;

	struct page *pg;
	unsigned int entrylen;

	unsigned int total;
	struct scatterlist *sg;

	unsigned int flags;
};

extern const struct crypto_type crypto_ahash_type;

int crypto_hash_walk_done(struct crypto_hash_walk *walk, int err);
int crypto_hash_walk_first(struct ahash_request *req,
			   struct crypto_hash_walk *walk);
int crypto_hash_walk_first_compat(struct hash_desc *hdesc,
				  struct crypto_hash_walk *walk,
				  struct scatterlist *sg, unsigned int len);

int crypto_register_shash(struct shash_alg *alg);
int crypto_unregister_shash(struct shash_alg *alg);

static inline void *crypto_ahash_ctx(struct crypto_ahash *tfm)
{
	return crypto_tfm_ctx(&tfm->base);
}

static inline struct ahash_alg *crypto_ahash_alg(
	struct crypto_ahash *tfm)
{
	return &crypto_ahash_tfm(tfm)->__crt_alg->cra_ahash;
}

static inline int ahash_enqueue_request(struct crypto_queue *queue,
					     struct ahash_request *request)
{
	return crypto_enqueue_request(queue, &request->base);
}

static inline struct ahash_request *ahash_dequeue_request(
	struct crypto_queue *queue)
{
	return ahash_request_cast(crypto_dequeue_request(queue));
}

static inline int ahash_tfm_in_queue(struct crypto_queue *queue,
					  struct crypto_ahash *tfm)
{
	return crypto_tfm_in_queue(queue, crypto_ahash_tfm(tfm));
}

static inline void *crypto_shash_ctx(struct crypto_shash *tfm)
{
	return crypto_tfm_ctx(&tfm->base);
}

#endif	/* _CRYPTO_INTERNAL_HASH_H */
Commit	Line	Data
20036252 HX	1	/*
	2	* Hash algorithms.
	3	*
	4	* Copyright (c) 2008 Herbert Xu <herbert@gondor.apana.org.au>
	5	*
	6	* This program is free software; you can redistribute it and/or modify it
	7	* under the terms of the GNU General Public License as published by the Free
	8	* Software Foundation; either version 2 of the License, or (at your option)
	9	* any later version.
	10	*
	11	*/
	12
	13	#ifndef _CRYPTO_INTERNAL_HASH_H
	14	#define _CRYPTO_INTERNAL_HASH_H
	15
	16	#include <crypto/algapi.h>
18e33e6d	17	#include <crypto/hash.h>
20036252 HX	18
	19	struct ahash_request;
	20	struct scatterlist;
	21
	22	struct crypto_hash_walk {
	23	char *data;
	24
	25	unsigned int offset;
	26	unsigned int alignmask;
	27
	28	struct page *pg;
	29	unsigned int entrylen;
	30
	31	unsigned int total;
	32	struct scatterlist *sg;
	33
	34	unsigned int flags;
	35	};
	36
18e33e6d HX	37	extern const struct crypto_type crypto_ahash_type;
18e33e6d HX	38
20036252 HX	39	int crypto_hash_walk_done(struct crypto_hash_walk *walk, int err);
	40	int crypto_hash_walk_first(struct ahash_request *req,
	41	struct crypto_hash_walk *walk);
5f7082ed HX	42	int crypto_hash_walk_first_compat(struct hash_desc *hdesc,
	43	struct crypto_hash_walk *walk,
	44	struct scatterlist *sg, unsigned int len);
20036252	45
7b5a080b HX	46	int crypto_register_shash(struct shash_alg *alg);
	47	int crypto_unregister_shash(struct shash_alg *alg);
	48
18e33e6d HX	49	static inline void crypto_ahash_ctx(struct crypto_ahash tfm)
	50	{
	51	return crypto_tfm_ctx(&tfm->base);
	52	}
	53
	54	static inline struct ahash_alg *crypto_ahash_alg(
	55	struct crypto_ahash *tfm)
	56	{
	57	return &crypto_ahash_tfm(tfm)->__crt_alg->cra_ahash;
	58	}
	59
	60	static inline int ahash_enqueue_request(struct crypto_queue *queue,
	61	struct ahash_request *request)
	62	{
	63	return crypto_enqueue_request(queue, &request->base);
	64	}
	65
	66	static inline struct ahash_request *ahash_dequeue_request(
	67	struct crypto_queue *queue)
	68	{
	69	return ahash_request_cast(crypto_dequeue_request(queue));
	70	}
	71
18e33e6d HX	72	static inline int ahash_tfm_in_queue(struct crypto_queue *queue,
	73	struct crypto_ahash *tfm)
	74	{
	75	return crypto_tfm_in_queue(queue, crypto_ahash_tfm(tfm));
	76	}
	77
7b5a080b HX	78	static inline void crypto_shash_ctx(struct crypto_shash tfm)
	79	{
	80	return crypto_tfm_ctx(&tfm->base);
	81	}
	82
20036252 HX	83	#endif /* _CRYPTO_INTERNAL_HASH_H */
20036252 HX	84