[mirror_ubuntu-focal-kernel.git] / include / crypto / internal / akcipher.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Public Key Encryption
 *
 * Copyright (c) 2015, Intel Corporation
 * Authors: Tadeusz Struk <tadeusz.struk@intel.com>
 */
#ifndef _CRYPTO_AKCIPHER_INT_H
#define _CRYPTO_AKCIPHER_INT_H
#include <crypto/akcipher.h>
#include <crypto/algapi.h>

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

struct crypto_akcipher_spawn {
	struct crypto_spawn base;
};

/*
 * Transform internal helpers.
 */
static inline void *akcipher_request_ctx(struct akcipher_request *req)
{
	return req->__ctx;
}

static inline void akcipher_set_reqsize(struct crypto_akcipher *akcipher,
					unsigned int reqsize)
{
	crypto_akcipher_alg(akcipher)->reqsize = reqsize;
}

static inline void *akcipher_tfm_ctx(struct crypto_akcipher *tfm)
{
	return tfm->base.__crt_ctx;
}

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

static inline const char *akcipher_alg_name(struct crypto_akcipher *tfm)
{
	return crypto_akcipher_tfm(tfm)->__crt_alg->cra_name;
}

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

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

static inline struct akcipher_instance *akcipher_alg_instance(
		struct crypto_akcipher *akcipher)
{
	return akcipher_instance(crypto_tfm_alg_instance(&akcipher->base));
}

static inline void *akcipher_instance_ctx(struct akcipher_instance *inst)
{
	return crypto_instance_ctx(akcipher_crypto_instance(inst));
}

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

int crypto_grab_akcipher(struct crypto_akcipher_spawn *spawn, const char *name,
		u32 type, u32 mask);

static inline struct crypto_akcipher *crypto_spawn_akcipher(
		struct crypto_akcipher_spawn *spawn)
{
	return crypto_spawn_tfm2(&spawn->base);
}

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

static inline struct akcipher_alg *crypto_spawn_akcipher_alg(
		struct crypto_akcipher_spawn *spawn)
{
	return container_of(spawn->base.alg, struct akcipher_alg, base);
}

/**
 * crypto_register_akcipher() -- Register public key algorithm
 *
 * Function registers an implementation of a public key verify algorithm
 *
 * @alg:	algorithm definition
 *
 * Return: zero on success; error code in case of error
 */
int crypto_register_akcipher(struct akcipher_alg *alg);

/**
 * crypto_unregister_akcipher() -- Unregister public key algorithm
 *
 * Function unregisters an implementation of a public key verify algorithm
 *
 * @alg:	algorithm definition
 */
void crypto_unregister_akcipher(struct akcipher_alg *alg);

/**
 * akcipher_register_instance() -- Unregister public key template instance
 *
 * Function registers an implementation of an asymmetric key algorithm
 * created from a template
 *
 * @tmpl:	the template from which the algorithm was created
 * @inst:	the template instance
 */
int akcipher_register_instance(struct crypto_template *tmpl,
		struct akcipher_instance *inst);
#endif
Commit	Line	Data
2874c5fd	1	/* SPDX-License-Identifier: GPL-2.0-or-later */
3c339ab8 TS	2	/*
	3	* Public Key Encryption
	4	*
	5	* Copyright (c) 2015, Intel Corporation
	6	* Authors: Tadeusz Struk <tadeusz.struk@intel.com>
3c339ab8 TS	7	*/
	8	#ifndef _CRYPTO_AKCIPHER_INT_H
	9	#define _CRYPTO_AKCIPHER_INT_H
	10	#include <crypto/akcipher.h>
28a4618a AZ	11	#include <crypto/algapi.h>
	12
	13	struct akcipher_instance {
	14	void (free)(struct akcipher_instance inst);
	15	union {
	16	struct {
	17	char head[offsetof(struct akcipher_alg, base)];
	18	struct crypto_instance base;
	19	} s;
	20	struct akcipher_alg alg;
	21	};
	22	};
	23
	24	struct crypto_akcipher_spawn {
	25	struct crypto_spawn base;
	26	};
3c339ab8 TS	27
	28	/*
	29	* Transform internal helpers.
	30	*/
	31	static inline void akcipher_request_ctx(struct akcipher_request req)
	32	{
	33	return req->__ctx;
	34	}
	35
333706b8 GH	36	static inline void akcipher_set_reqsize(struct crypto_akcipher *akcipher,
	37	unsigned int reqsize)
	38	{
	39	crypto_akcipher_alg(akcipher)->reqsize = reqsize;
	40	}
	41
3c339ab8 TS	42	static inline void akcipher_tfm_ctx(struct crypto_akcipher tfm)
	43	{
	44	return tfm->base.__crt_ctx;
	45	}
	46
	47	static inline void akcipher_request_complete(struct akcipher_request *req,
	48	int err)
	49	{
	50	req->base.complete(&req->base, err);
	51	}
	52
	53	static inline const char akcipher_alg_name(struct crypto_akcipher tfm)
	54	{
	55	return crypto_akcipher_tfm(tfm)->__crt_alg->cra_name;
	56	}
	57
28a4618a AZ	58	static inline struct crypto_instance *akcipher_crypto_instance(
	59	struct akcipher_instance *inst)
	60	{
	61	return container_of(&inst->alg.base, struct crypto_instance, alg);
	62	}
	63
	64	static inline struct akcipher_instance *akcipher_instance(
	65	struct crypto_instance *inst)
	66	{
	67	return container_of(&inst->alg, struct akcipher_instance, alg.base);
	68	}
	69
	70	static inline struct akcipher_instance *akcipher_alg_instance(
	71	struct crypto_akcipher *akcipher)
	72	{
	73	return akcipher_instance(crypto_tfm_alg_instance(&akcipher->base));
	74	}
	75
	76	static inline void akcipher_instance_ctx(struct akcipher_instance inst)
	77	{
	78	return crypto_instance_ctx(akcipher_crypto_instance(inst));
	79	}
	80
	81	static inline void crypto_set_akcipher_spawn(
	82	struct crypto_akcipher_spawn *spawn,
	83	struct crypto_instance *inst)
	84	{
	85	crypto_set_spawn(&spawn->base, inst);
	86	}
	87
	88	int crypto_grab_akcipher(struct crypto_akcipher_spawn spawn, const char name,
	89	u32 type, u32 mask);
	90
	91	static inline struct crypto_akcipher *crypto_spawn_akcipher(
	92	struct crypto_akcipher_spawn *spawn)
	93	{
	94	return crypto_spawn_tfm2(&spawn->base);
	95	}
	96
	97	static inline void crypto_drop_akcipher(struct crypto_akcipher_spawn *spawn)
	98	{
	99	crypto_drop_spawn(&spawn->base);
	100	}
	101
	102	static inline struct akcipher_alg *crypto_spawn_akcipher_alg(
	103	struct crypto_akcipher_spawn *spawn)
	104	{
	105	return container_of(spawn->base.alg, struct akcipher_alg, base);
	106	}
	107
3c339ab8 TS	108	/**
	109	* crypto_register_akcipher() -- Register public key algorithm
	110	*
	111	* Function registers an implementation of a public key verify algorithm
	112	*
	113	* @alg: algorithm definition
	114	*
	115	* Return: zero on success; error code in case of error
	116	*/
	117	int crypto_register_akcipher(struct akcipher_alg *alg);
	118
	119	/**
	120	* crypto_unregister_akcipher() -- Unregister public key algorithm
	121	*
	122	* Function unregisters an implementation of a public key verify algorithm
	123	*
	124	* @alg: algorithm definition
	125	*/
	126	void crypto_unregister_akcipher(struct akcipher_alg *alg);
28a4618a AZ	127
	128	/**
	129	* akcipher_register_instance() -- Unregister public key template instance
	130	*
	131	* Function registers an implementation of an asymmetric key algorithm
	132	* created from a template
	133	*
	134	* @tmpl: the template from which the algorithm was created
	135	* @inst: the template instance
	136	*/
	137	int akcipher_register_instance(struct crypto_template *tmpl,
	138	struct akcipher_instance *inst);
3c339ab8	139	#endif