[deliverable/linux.git] / include / crypto / internal / aead.h

/*
 * AEAD: Authenticated Encryption with Associated Data
 * 
 * Copyright (c) 2007 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_AEAD_H
#define _CRYPTO_INTERNAL_AEAD_H

#include <crypto/aead.h>
#include <crypto/algapi.h>
#include <linux/types.h>

struct rtattr;

struct aead_instance {
	struct aead_alg alg;
};

struct crypto_aead_spawn {
	struct crypto_spawn base;
};

extern const struct crypto_type crypto_aead_type;
extern const struct crypto_type crypto_nivaead_type;

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

static inline struct crypto_instance *crypto_aead_alg_instance(
	struct crypto_aead *aead)
{
	return crypto_tfm_alg_instance(&aead->base);
}

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

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

static inline void *aead_instance_ctx(struct aead_instance *inst)
{
	return crypto_instance_ctx(aead_crypto_instance(inst));
}

static inline void *aead_request_ctx(struct aead_request *req)
{
	return req->__ctx;
}

static inline void aead_request_complete(struct aead_request *req, int err)
{
	req->base.complete(&req->base, err);
}

static inline u32 aead_request_flags(struct aead_request *req)
{
	return req->base.flags;
}

static inline void crypto_set_aead_spawn(
	struct crypto_aead_spawn *spawn, struct crypto_instance *inst)
{
	crypto_set_spawn(&spawn->base, inst);
}

struct crypto_alg *crypto_lookup_aead(const char *name, u32 type, u32 mask);

int crypto_grab_aead(struct crypto_aead_spawn *spawn, const char *name,
		     u32 type, u32 mask);

static inline void crypto_drop_aead(struct crypto_aead_spawn *spawn)
{
	crypto_drop_spawn(&spawn->base);
}

static inline struct crypto_alg *crypto_aead_spawn_alg(
	struct crypto_aead_spawn *spawn)
{
	return spawn->base.alg;
}

static inline struct aead_alg *crypto_spawn_aead_alg(
	struct crypto_aead_spawn *spawn)
{
	return container_of(spawn->base.alg, struct aead_alg, base);
}

static inline struct crypto_aead *crypto_spawn_aead(
	struct crypto_aead_spawn *spawn)
{
	return crypto_spawn_tfm2(&spawn->base);
}

struct aead_instance *aead_geniv_alloc(struct crypto_template *tmpl,
				       struct rtattr **tb, u32 type, u32 mask);
void aead_geniv_free(struct aead_instance *inst);
int aead_geniv_init(struct crypto_tfm *tfm);
void aead_geniv_exit(struct crypto_tfm *tfm);

static inline struct crypto_aead *aead_geniv_base(struct crypto_aead *geniv)
{
	return geniv->child;
}

static inline void *aead_givcrypt_reqctx(struct aead_givcrypt_request *req)
{
	return aead_request_ctx(&req->areq);
}

static inline void aead_givcrypt_complete(struct aead_givcrypt_request *req,
					  int err)
{
	aead_request_complete(&req->areq, err);
}

static inline void crypto_aead_set_reqsize(struct crypto_aead *aead,
					   unsigned int reqsize)
{
	crypto_aead_crt(aead)->reqsize = reqsize;
}

static inline unsigned int crypto_aead_alg_maxauthsize(struct aead_alg *alg)
{
	return alg->base.cra_aead.encrypt ? alg->base.cra_aead.maxauthsize :
					    alg->maxauthsize;
}

static inline unsigned int crypto_aead_maxauthsize(struct crypto_aead *aead)
{
	return crypto_aead_alg_maxauthsize(crypto_aead_alg(aead));
}

int crypto_register_aead(struct aead_alg *alg);
int crypto_unregister_aead(struct aead_alg *alg);
int aead_register_instance(struct crypto_template *tmpl,
			   struct aead_instance *inst);

#endif	/* _CRYPTO_INTERNAL_AEAD_H */
Commit	Line	Data
5b6d2d7f HX	1	/*
	2	* AEAD: Authenticated Encryption with Associated Data
	3	*
	4	* Copyright (c) 2007 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_AEAD_H
	14	#define _CRYPTO_INTERNAL_AEAD_H
	15
	16	#include <crypto/aead.h>
	17	#include <crypto/algapi.h>
	18	#include <linux/types.h>
	19
	20	struct rtattr;
	21
63293c61 HX	22	struct aead_instance {
	23	struct aead_alg alg;
	24	};
	25
5b6d2d7f HX	26	struct crypto_aead_spawn {
	27	struct crypto_spawn base;
	28	};
	29
5d1d65f8	30	extern const struct crypto_type crypto_aead_type;
5b6d2d7f HX	31	extern const struct crypto_type crypto_nivaead_type;
5b6d2d7f HX	32
5d1d65f8 HX	33	static inline void crypto_aead_ctx(struct crypto_aead tfm)
	34	{
	35	return crypto_tfm_ctx(&tfm->base);
	36	}
	37
	38	static inline struct crypto_instance *crypto_aead_alg_instance(
	39	struct crypto_aead *aead)
	40	{
	41	return crypto_tfm_alg_instance(&aead->base);
	42	}
	43
63293c61 HX	44	static inline struct crypto_instance *aead_crypto_instance(
	45	struct aead_instance *inst)
	46	{
	47	return container_of(&inst->alg.base, struct crypto_instance, alg);
	48	}
	49
	50	static inline struct aead_instance aead_instance(struct crypto_instance inst)
	51	{
	52	return container_of(&inst->alg, struct aead_instance, alg.base);
	53	}
	54
	55	static inline void aead_instance_ctx(struct aead_instance inst)
	56	{
	57	return crypto_instance_ctx(aead_crypto_instance(inst));
	58	}
	59
5d1d65f8 HX	60	static inline void aead_request_ctx(struct aead_request req)
	61	{
	62	return req->__ctx;
	63	}
	64
	65	static inline void aead_request_complete(struct aead_request *req, int err)
	66	{
	67	req->base.complete(&req->base, err);
	68	}
	69
	70	static inline u32 aead_request_flags(struct aead_request *req)
	71	{
	72	return req->base.flags;
	73	}
	74
5b6d2d7f HX	75	static inline void crypto_set_aead_spawn(
	76	struct crypto_aead_spawn spawn, struct crypto_instance inst)
	77	{
	78	crypto_set_spawn(&spawn->base, inst);
	79	}
	80
1e122994 SK	81	struct crypto_alg crypto_lookup_aead(const char name, u32 type, u32 mask);
1e122994 SK	82
d29ce988 HX	83	int crypto_grab_aead(struct crypto_aead_spawn spawn, const char name,
	84	u32 type, u32 mask);
	85
5b6d2d7f HX	86	static inline void crypto_drop_aead(struct crypto_aead_spawn *spawn)
	87	{
	88	crypto_drop_spawn(&spawn->base);
	89	}
	90
	91	static inline struct crypto_alg *crypto_aead_spawn_alg(
	92	struct crypto_aead_spawn *spawn)
	93	{
	94	return spawn->base.alg;
	95	}
	96
63293c61 HX	97	static inline struct aead_alg *crypto_spawn_aead_alg(
	98	struct crypto_aead_spawn *spawn)
	99	{
	100	return container_of(spawn->base.alg, struct aead_alg, base);
	101	}
	102
5b6d2d7f HX	103	static inline struct crypto_aead *crypto_spawn_aead(
	104	struct crypto_aead_spawn *spawn)
	105	{
5d1d65f8	106	return crypto_spawn_tfm2(&spawn->base);
5b6d2d7f HX	107	}
5b6d2d7f HX	108
856e3f40 HX	109	struct aead_instance aead_geniv_alloc(struct crypto_template tmpl,
	110	struct rtattr **tb, u32 type, u32 mask);
	111	void aead_geniv_free(struct aead_instance *inst);
5b6d2d7f HX	112	int aead_geniv_init(struct crypto_tfm *tfm);
	113	void aead_geniv_exit(struct crypto_tfm *tfm);
	114
	115	static inline struct crypto_aead aead_geniv_base(struct crypto_aead geniv)
	116	{
5d1d65f8	117	return geniv->child;
5b6d2d7f HX	118	}
	119
	120	static inline void aead_givcrypt_reqctx(struct aead_givcrypt_request req)
	121	{
	122	return aead_request_ctx(&req->areq);
	123	}
	124
	125	static inline void aead_givcrypt_complete(struct aead_givcrypt_request *req,
	126	int err)
	127	{
	128	aead_request_complete(&req->areq, err);
	129	}
	130
21b70134 HX	131	static inline void crypto_aead_set_reqsize(struct crypto_aead *aead,
	132	unsigned int reqsize)
	133	{
	134	crypto_aead_crt(aead)->reqsize = reqsize;
	135	}
	136
30e4c010 HX	137	static inline unsigned int crypto_aead_alg_maxauthsize(struct aead_alg *alg)
	138	{
	139	return alg->base.cra_aead.encrypt ? alg->base.cra_aead.maxauthsize :
	140	alg->maxauthsize;
	141	}
	142
f5695259 HX	143	static inline unsigned int crypto_aead_maxauthsize(struct crypto_aead *aead)
f5695259 HX	144	{
30e4c010	145	return crypto_aead_alg_maxauthsize(crypto_aead_alg(aead));
f5695259 HX	146	}
f5695259 HX	147
63293c61 HX	148	int crypto_register_aead(struct aead_alg *alg);
	149	int crypto_unregister_aead(struct aead_alg *alg);
	150	int aead_register_instance(struct crypto_template *tmpl,
	151	struct aead_instance *inst);
	152
5b6d2d7f HX	153	#endif /* _CRYPTO_INTERNAL_AEAD_H */
5b6d2d7f HX	154