[mirror_ubuntu-jammy-kernel.git] / include / crypto / internal / skcipher.h

/*
 * Symmetric key ciphers.
 * 
 * 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_SKCIPHER_H
#define _CRYPTO_INTERNAL_SKCIPHER_H

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

struct rtattr;

struct skcipher_instance {
	void (*free)(struct skcipher_instance *inst);
	union {
		struct {
			char head[offsetof(struct skcipher_alg, base)];
			struct crypto_instance base;
		} s;
		struct skcipher_alg alg;
	};
};

struct crypto_skcipher_spawn {
	struct crypto_spawn base;
};

extern const struct crypto_type crypto_givcipher_type;

static inline struct crypto_instance *skcipher_crypto_instance(
	struct skcipher_instance *inst)
{
	return &inst->s.base;
}

static inline struct skcipher_instance *skcipher_alg_instance(
	struct crypto_skcipher *skcipher)
{
	return container_of(crypto_skcipher_alg(skcipher),
			    struct skcipher_instance, alg);
}

static inline void *skcipher_instance_ctx(struct skcipher_instance *inst)
{
	return crypto_instance_ctx(skcipher_crypto_instance(inst));
}

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

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

int crypto_grab_skcipher(struct crypto_skcipher_spawn *spawn, const char *name,
			 u32 type, u32 mask);

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

static inline struct skcipher_alg *crypto_skcipher_spawn_alg(
	struct crypto_skcipher_spawn *spawn)
{
	return container_of(spawn->base.alg, struct skcipher_alg, base);
}

static inline struct skcipher_alg *crypto_spawn_skcipher_alg(
	struct crypto_skcipher_spawn *spawn)
{
	return crypto_skcipher_spawn_alg(spawn);
}

static inline struct crypto_skcipher *crypto_spawn_skcipher(
	struct crypto_skcipher_spawn *spawn)
{
	return crypto_spawn_tfm2(&spawn->base);
}

static inline void crypto_skcipher_set_reqsize(
	struct crypto_skcipher *skcipher, unsigned int reqsize)
{
	skcipher->reqsize = reqsize;
}

int crypto_register_skcipher(struct skcipher_alg *alg);
void crypto_unregister_skcipher(struct skcipher_alg *alg);
int crypto_register_skciphers(struct skcipher_alg *algs, int count);
void crypto_unregister_skciphers(struct skcipher_alg *algs, int count);
int skcipher_register_instance(struct crypto_template *tmpl,
			       struct skcipher_instance *inst);

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

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

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

static inline void *skcipher_request_ctx(struct skcipher_request *req)
{
	return req->__ctx;
}

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

static inline unsigned int crypto_skcipher_alg_min_keysize(
	struct skcipher_alg *alg)
{
	if ((alg->base.cra_flags & CRYPTO_ALG_TYPE_MASK) ==
	    CRYPTO_ALG_TYPE_BLKCIPHER)
		return alg->base.cra_blkcipher.min_keysize;

	if (alg->base.cra_ablkcipher.encrypt)
		return alg->base.cra_ablkcipher.min_keysize;

	return alg->min_keysize;
}

static inline unsigned int crypto_skcipher_alg_max_keysize(
	struct skcipher_alg *alg)
{
	if ((alg->base.cra_flags & CRYPTO_ALG_TYPE_MASK) ==
	    CRYPTO_ALG_TYPE_BLKCIPHER)
		return alg->base.cra_blkcipher.max_keysize;

	if (alg->base.cra_ablkcipher.encrypt)
		return alg->base.cra_ablkcipher.max_keysize;

	return alg->max_keysize;
}

#endif	/* _CRYPTO_INTERNAL_SKCIPHER_H */
Commit	Line	Data
378f4f51 HX	1	/*
	2	* Symmetric key ciphers.
	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_SKCIPHER_H
	14	#define _CRYPTO_INTERNAL_SKCIPHER_H
	15
	16	#include <crypto/algapi.h>
61da88e2	17	#include <crypto/skcipher.h>
ecfc4329 HX	18	#include <linux/types.h>
	19
	20	struct rtattr;
378f4f51	21
4e6c3df4 HX	22	struct skcipher_instance {
	23	void (free)(struct skcipher_instance inst);
	24	union {
	25	struct {
	26	char head[offsetof(struct skcipher_alg, base)];
	27	struct crypto_instance base;
	28	} s;
	29	struct skcipher_alg alg;
	30	};
	31	};
	32
378f4f51 HX	33	struct crypto_skcipher_spawn {
	34	struct crypto_spawn base;
	35	};
	36
61da88e2 HX	37	extern const struct crypto_type crypto_givcipher_type;
61da88e2 HX	38
4e6c3df4 HX	39	static inline struct crypto_instance *skcipher_crypto_instance(
	40	struct skcipher_instance *inst)
	41	{
	42	return &inst->s.base;
	43	}
	44
	45	static inline struct skcipher_instance *skcipher_alg_instance(
	46	struct crypto_skcipher *skcipher)
	47	{
	48	return container_of(crypto_skcipher_alg(skcipher),
	49	struct skcipher_instance, alg);
	50	}
	51
	52	static inline void skcipher_instance_ctx(struct skcipher_instance inst)
	53	{
	54	return crypto_instance_ctx(skcipher_crypto_instance(inst));
	55	}
	56
	57	static inline void skcipher_request_complete(struct skcipher_request *req, int err)
	58	{
	59	req->base.complete(&req->base, err);
	60	}
	61
378f4f51 HX	62	static inline void crypto_set_skcipher_spawn(
	63	struct crypto_skcipher_spawn spawn, struct crypto_instance inst)
	64	{
	65	crypto_set_spawn(&spawn->base, inst);
	66	}
	67
	68	int crypto_grab_skcipher(struct crypto_skcipher_spawn spawn, const char name,
	69	u32 type, u32 mask);
3a01d0ee	70
378f4f51 HX	71	static inline void crypto_drop_skcipher(struct crypto_skcipher_spawn *spawn)
	72	{
	73	crypto_drop_spawn(&spawn->base);
	74	}
	75
3a01d0ee	76	static inline struct skcipher_alg *crypto_skcipher_spawn_alg(
378f4f51 HX	77	struct crypto_skcipher_spawn *spawn)
378f4f51 HX	78	{
3a01d0ee	79	return container_of(spawn->base.alg, struct skcipher_alg, base);
378f4f51 HX	80	}
378f4f51 HX	81
4e6c3df4 HX	82	static inline struct skcipher_alg *crypto_spawn_skcipher_alg(
	83	struct crypto_skcipher_spawn *spawn)
	84	{
3a01d0ee	85	return crypto_skcipher_spawn_alg(spawn);
4e6c3df4 HX	86	}
4e6c3df4 HX	87
3a01d0ee	88	static inline struct crypto_skcipher *crypto_spawn_skcipher(
378f4f51 HX	89	struct crypto_skcipher_spawn *spawn)
378f4f51 HX	90	{
3a01d0ee	91	return crypto_spawn_tfm2(&spawn->base);
378f4f51 HX	92	}
378f4f51 HX	93
4e6c3df4 HX	94	static inline void crypto_skcipher_set_reqsize(
	95	struct crypto_skcipher *skcipher, unsigned int reqsize)
	96	{
	97	skcipher->reqsize = reqsize;
	98	}
	99
	100	int crypto_register_skcipher(struct skcipher_alg *alg);
	101	void crypto_unregister_skcipher(struct skcipher_alg *alg);
	102	int crypto_register_skciphers(struct skcipher_alg *algs, int count);
	103	void crypto_unregister_skciphers(struct skcipher_alg *algs, int count);
	104	int skcipher_register_instance(struct crypto_template *tmpl,
	105	struct skcipher_instance *inst);
	106
15c67286 HX	107	static inline void ablkcipher_request_complete(struct ablkcipher_request *req,
	108	int err)
	109	{
	110	req->base.complete(&req->base, err);
	111	}
	112
3631c650 HX	113	static inline u32 ablkcipher_request_flags(struct ablkcipher_request *req)
	114	{
	115	return req->base.flags;
	116	}
	117
7a7ffe65 HX	118	static inline void crypto_skcipher_ctx(struct crypto_skcipher tfm)
	119	{
	120	return crypto_tfm_ctx(&tfm->base);
	121	}
	122
	123	static inline void skcipher_request_ctx(struct skcipher_request req)
	124	{
	125	return req->__ctx;
	126	}
	127
	128	static inline u32 skcipher_request_flags(struct skcipher_request *req)
	129	{
	130	return req->base.flags;
	131	}
	132
4e6c3df4 HX	133	static inline unsigned int crypto_skcipher_alg_min_keysize(
	134	struct skcipher_alg *alg)
	135	{
	136	if ((alg->base.cra_flags & CRYPTO_ALG_TYPE_MASK) ==
	137	CRYPTO_ALG_TYPE_BLKCIPHER)
	138	return alg->base.cra_blkcipher.min_keysize;
	139
	140	if (alg->base.cra_ablkcipher.encrypt)
	141	return alg->base.cra_ablkcipher.min_keysize;
	142
	143	return alg->min_keysize;
	144	}
	145
	146	static inline unsigned int crypto_skcipher_alg_max_keysize(
	147	struct skcipher_alg *alg)
	148	{
	149	if ((alg->base.cra_flags & CRYPTO_ALG_TYPE_MASK) ==
	150	CRYPTO_ALG_TYPE_BLKCIPHER)
	151	return alg->base.cra_blkcipher.max_keysize;
	152
	153	if (alg->base.cra_ablkcipher.encrypt)
	154	return alg->base.cra_ablkcipher.max_keysize;
	155
	156	return alg->max_keysize;
	157	}
	158
378f4f51 HX	159	#endif /* _CRYPTO_INTERNAL_SKCIPHER_H */
378f4f51 HX	160