[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 struct old_aead_alg *crypto_old_aead_alg(struct crypto_aead *tfm)
{
	return &crypto_aead_tfm(tfm)->__crt_alg->cra_aead;
}

static inline struct aead_alg *crypto_aead_alg(struct crypto_aead *tfm)
{
	return container_of(crypto_aead_tfm(tfm)->__crt_alg,
			    struct aead_alg, base);
}

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 crypto_instance *aead_geniv_alloc(struct crypto_template *tmpl,
					 struct rtattr **tb, u32 type,
					 u32 mask);
void aead_geniv_free(struct crypto_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_maxauthsize(struct crypto_aead *aead)
{
	return aead->maxauthsize;
}

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
2d0f230f HX	33	static inline struct old_aead_alg crypto_old_aead_alg(struct crypto_aead tfm)
	34	{
	35	return &crypto_aead_tfm(tfm)->__crt_alg->cra_aead;
	36	}
	37
5d1d65f8 HX	38	static inline struct aead_alg crypto_aead_alg(struct crypto_aead tfm)
5d1d65f8 HX	39	{
63293c61 HX	40	return container_of(crypto_aead_tfm(tfm)->__crt_alg,
63293c61 HX	41	struct aead_alg, base);
5d1d65f8 HX	42	}
	43
	44	static inline void crypto_aead_ctx(struct crypto_aead tfm)
	45	{
	46	return crypto_tfm_ctx(&tfm->base);
	47	}
	48
	49	static inline struct crypto_instance *crypto_aead_alg_instance(
	50	struct crypto_aead *aead)
	51	{
	52	return crypto_tfm_alg_instance(&aead->base);
	53	}
	54
63293c61 HX	55	static inline struct crypto_instance *aead_crypto_instance(
	56	struct aead_instance *inst)
	57	{
	58	return container_of(&inst->alg.base, struct crypto_instance, alg);
	59	}
	60
	61	static inline struct aead_instance aead_instance(struct crypto_instance inst)
	62	{
	63	return container_of(&inst->alg, struct aead_instance, alg.base);
	64	}
	65
	66	static inline void aead_instance_ctx(struct aead_instance inst)
	67	{
	68	return crypto_instance_ctx(aead_crypto_instance(inst));
	69	}
	70
5d1d65f8 HX	71	static inline void aead_request_ctx(struct aead_request req)
	72	{
	73	return req->__ctx;
	74	}
	75
	76	static inline void aead_request_complete(struct aead_request *req, int err)
	77	{
	78	req->base.complete(&req->base, err);
	79	}
	80
	81	static inline u32 aead_request_flags(struct aead_request *req)
	82	{
	83	return req->base.flags;
	84	}
	85
5b6d2d7f HX	86	static inline void crypto_set_aead_spawn(
	87	struct crypto_aead_spawn spawn, struct crypto_instance inst)
	88	{
	89	crypto_set_spawn(&spawn->base, inst);
	90	}
	91
1e122994 SK	92	struct crypto_alg crypto_lookup_aead(const char name, u32 type, u32 mask);
1e122994 SK	93
d29ce988 HX	94	int crypto_grab_aead(struct crypto_aead_spawn spawn, const char name,
	95	u32 type, u32 mask);
	96
5b6d2d7f HX	97	static inline void crypto_drop_aead(struct crypto_aead_spawn *spawn)
	98	{
	99	crypto_drop_spawn(&spawn->base);
	100	}
	101
	102	static inline struct crypto_alg *crypto_aead_spawn_alg(
	103	struct crypto_aead_spawn *spawn)
	104	{
	105	return spawn->base.alg;
	106	}
	107
63293c61 HX	108	static inline struct aead_alg *crypto_spawn_aead_alg(
	109	struct crypto_aead_spawn *spawn)
	110	{
	111	return container_of(spawn->base.alg, struct aead_alg, base);
	112	}
	113
5b6d2d7f HX	114	static inline struct crypto_aead *crypto_spawn_aead(
	115	struct crypto_aead_spawn *spawn)
	116	{
5d1d65f8	117	return crypto_spawn_tfm2(&spawn->base);
5b6d2d7f HX	118	}
	119
	120	struct crypto_instance aead_geniv_alloc(struct crypto_template tmpl,
	121	struct rtattr **tb, u32 type,
	122	u32 mask);
	123	void aead_geniv_free(struct crypto_instance *inst);
	124	int aead_geniv_init(struct crypto_tfm *tfm);
	125	void aead_geniv_exit(struct crypto_tfm *tfm);
	126
	127	static inline struct crypto_aead aead_geniv_base(struct crypto_aead geniv)
	128	{
5d1d65f8	129	return geniv->child;
5b6d2d7f HX	130	}
	131
	132	static inline void aead_givcrypt_reqctx(struct aead_givcrypt_request req)
	133	{
	134	return aead_request_ctx(&req->areq);
	135	}
	136
	137	static inline void aead_givcrypt_complete(struct aead_givcrypt_request *req,
	138	int err)
	139	{
	140	aead_request_complete(&req->areq, err);
	141	}
	142
21b70134 HX	143	static inline void crypto_aead_set_reqsize(struct crypto_aead *aead,
	144	unsigned int reqsize)
	145	{
	146	crypto_aead_crt(aead)->reqsize = reqsize;
	147	}
	148
f5695259 HX	149	static inline unsigned int crypto_aead_maxauthsize(struct crypto_aead *aead)
f5695259 HX	150	{
63293c61	151	return aead->maxauthsize;
f5695259 HX	152	}
f5695259 HX	153
63293c61 HX	154	int crypto_register_aead(struct aead_alg *alg);
	155	int crypto_unregister_aead(struct aead_alg *alg);
	156	int aead_register_instance(struct crypto_template *tmpl,
	157	struct aead_instance *inst);
	158
5b6d2d7f HX	159	#endif /* _CRYPTO_INTERNAL_AEAD_H */
5b6d2d7f HX	160