[mirror_ubuntu-bionic-kernel.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;
};

struct shash_instance {
	struct shash_alg alg;
};

struct crypto_shash_spawn {
	struct crypto_spawn base;
};

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);

void shash_free_instance(struct crypto_instance *inst);

int crypto_init_shash_spawn(struct crypto_shash_spawn *spawn,
			    struct shash_alg *alg,
			    struct crypto_instance *inst);

struct shash_alg *shash_attr_alg(struct rtattr *rta, u32 type, u32 mask);

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);
}

static inline struct crypto_instance *shash_crypto_instance(
	struct shash_instance *inst)
{
	return container_of(&inst->alg.base, struct crypto_instance, alg);
}

static inline struct shash_instance *shash_instance(
	struct crypto_instance *inst)
{
	return container_of(__crypto_shash_alg(&inst->alg),
			    struct shash_instance, alg);
}

static inline struct shash_instance *shash_alloc_instance(
	const char *name, struct crypto_alg *alg)
{
	return crypto_alloc_instance2(name, alg,
				      sizeof(struct shash_alg) - sizeof(*alg));
}

static inline struct crypto_shash *crypto_spawn_shash(
	struct crypto_shash_spawn *spawn)
{
	return crypto_spawn_tfm2(&spawn->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
2e4fddd8 HX	37	struct shash_instance {
	38	struct shash_alg alg;
	39	};
	40
94296999 HX	41	struct crypto_shash_spawn {
	42	struct crypto_spawn base;
	43	};
	44
18e33e6d HX	45	extern const struct crypto_type crypto_ahash_type;
18e33e6d HX	46
20036252 HX	47	int crypto_hash_walk_done(struct crypto_hash_walk *walk, int err);
	48	int crypto_hash_walk_first(struct ahash_request *req,
	49	struct crypto_hash_walk *walk);
5f7082ed HX	50	int crypto_hash_walk_first_compat(struct hash_desc *hdesc,
	51	struct crypto_hash_walk *walk,
	52	struct scatterlist *sg, unsigned int len);
20036252	53
7b5a080b HX	54	int crypto_register_shash(struct shash_alg *alg);
	55	int crypto_unregister_shash(struct shash_alg *alg);
	56
2e4fddd8 HX	57	void shash_free_instance(struct crypto_instance *inst);
2e4fddd8 HX	58
94296999 HX	59	int crypto_init_shash_spawn(struct crypto_shash_spawn *spawn,
	60	struct shash_alg *alg,
	61	struct crypto_instance *inst);
	62
7d6f5640 HX	63	struct shash_alg shash_attr_alg(struct rtattr rta, u32 type, u32 mask);
7d6f5640 HX	64
18e33e6d HX	65	static inline void crypto_ahash_ctx(struct crypto_ahash tfm)
	66	{
	67	return crypto_tfm_ctx(&tfm->base);
	68	}
	69
	70	static inline struct ahash_alg *crypto_ahash_alg(
	71	struct crypto_ahash *tfm)
	72	{
	73	return &crypto_ahash_tfm(tfm)->__crt_alg->cra_ahash;
	74	}
	75
	76	static inline int ahash_enqueue_request(struct crypto_queue *queue,
	77	struct ahash_request *request)
	78	{
	79	return crypto_enqueue_request(queue, &request->base);
	80	}
	81
	82	static inline struct ahash_request *ahash_dequeue_request(
	83	struct crypto_queue *queue)
	84	{
	85	return ahash_request_cast(crypto_dequeue_request(queue));
	86	}
	87
18e33e6d HX	88	static inline int ahash_tfm_in_queue(struct crypto_queue *queue,
	89	struct crypto_ahash *tfm)
	90	{
	91	return crypto_tfm_in_queue(queue, crypto_ahash_tfm(tfm));
	92	}
	93
7b5a080b HX	94	static inline void crypto_shash_ctx(struct crypto_shash tfm)
	95	{
	96	return crypto_tfm_ctx(&tfm->base);
	97	}
	98
2e4fddd8 HX	99	static inline struct crypto_instance *shash_crypto_instance(
	100	struct shash_instance *inst)
	101	{
	102	return container_of(&inst->alg.base, struct crypto_instance, alg);
	103	}
	104
	105	static inline struct shash_instance *shash_instance(
	106	struct crypto_instance *inst)
	107	{
	108	return container_of(__crypto_shash_alg(&inst->alg),
	109	struct shash_instance, alg);
	110	}
	111
	112	static inline struct shash_instance *shash_alloc_instance(
	113	const char name, struct crypto_alg alg)
	114	{
	115	return crypto_alloc_instance2(name, alg,
	116	sizeof(struct shash_alg) - sizeof(*alg));
	117	}
	118
94296999 HX	119	static inline struct crypto_shash *crypto_spawn_shash(
	120	struct crypto_shash_spawn *spawn)
	121	{
	122	return crypto_spawn_tfm2(&spawn->base);
	123	}
	124
20036252 HX	125	#endif /* _CRYPTO_INTERNAL_HASH_H */
20036252 HX	126