/* 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_request_ctx_dma(struct akcipher_request *req){	unsigned int align = crypto_dma_align(); 	if (align <= crypto_tfm_ctx_alignment())		align = 1; 	return PTR_ALIGN(akcipher_request_ctx(req), align);} static inline void akcipher_set_reqsize(struct crypto_akcipher *akcipher,					unsigned int reqsize){	akcipher->reqsize = reqsize;} static inline void akcipher_set_reqsize_dma(struct crypto_akcipher *akcipher,					    unsigned int reqsize){	reqsize += crypto_dma_align() & ~(crypto_tfm_ctx_alignment() - 1);	akcipher->reqsize = reqsize;} static inline void *akcipher_tfm_ctx(struct crypto_akcipher *tfm){	return crypto_tfm_ctx(&tfm->base);} static inline void *akcipher_tfm_ctx_dma(struct crypto_akcipher *tfm){	return crypto_tfm_ctx_dma(&tfm->base);} static inline void akcipher_request_complete(struct akcipher_request *req,					     int err){	crypto_request_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));} int crypto_grab_akcipher(struct crypto_akcipher_spawn *spawn,			 struct crypto_instance *inst,			 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 cipher 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 cipher 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