/* SPDX-License-Identifier: GPL-2.0-or-later *//* * AEAD: Authenticated Encryption with Associated Data *  * Copyright (c) 2007-2015 Herbert Xu <herbert@gondor.apana.org.au> */ #ifndef _CRYPTO_INTERNAL_AEAD_H#define _CRYPTO_INTERNAL_AEAD_H #include <crypto/aead.h>#include <crypto/algapi.h>#include <linux/stddef.h>#include <linux/types.h> struct rtattr; struct aead_instance {	void (*free)(struct aead_instance *inst);	union {		struct {			char head[offsetof(struct aead_alg, base)];			struct crypto_instance base;		} s;		struct aead_alg alg;	};}; struct crypto_aead_spawn {	struct crypto_spawn base;}; struct aead_queue {	struct crypto_queue base;}; static inline void *crypto_aead_ctx(struct crypto_aead *tfm){	return crypto_tfm_ctx(&tfm->base);} static inline void *crypto_aead_ctx_dma(struct crypto_aead *tfm){	return crypto_tfm_ctx_dma(&tfm->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 struct aead_instance *aead_alg_instance(struct crypto_aead *aead){	return aead_instance(crypto_tfm_alg_instance(&aead->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_ctx_dma(struct aead_request *req){	unsigned int align = crypto_dma_align(); 	if (align <= crypto_tfm_ctx_alignment())		align = 1; 	return PTR_ALIGN(aead_request_ctx(req), align);} static inline void aead_request_complete(struct aead_request *req, int err){	crypto_request_complete(&req->base, err);} static inline u32 aead_request_flags(struct aead_request *req){	return req->base.flags;} static inline struct aead_request *aead_request_cast(	struct crypto_async_request *req){	return container_of(req, struct aead_request, base);} int crypto_grab_aead(struct crypto_aead_spawn *spawn,		     struct crypto_instance *inst,		     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 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);} static inline void crypto_aead_set_reqsize(struct crypto_aead *aead,					   unsigned int reqsize){	aead->reqsize = reqsize;} static inline void crypto_aead_set_reqsize_dma(struct crypto_aead *aead,					       unsigned int reqsize){	reqsize += crypto_dma_align() & ~(crypto_tfm_ctx_alignment() - 1);	aead->reqsize = reqsize;} static inline void aead_init_queue(struct aead_queue *queue,				   unsigned int max_qlen){	crypto_init_queue(&queue->base, max_qlen);} static inline unsigned int crypto_aead_alg_chunksize(struct aead_alg *alg){	return alg->chunksize;} /** * crypto_aead_chunksize() - obtain chunk size * @tfm: cipher handle * * The block size is set to one for ciphers such as CCM.  However, * you still need to provide incremental updates in multiples of * the underlying block size as the IV does not have sub-block * granularity.  This is known in this API as the chunk size. * * Return: chunk size in bytes */static inline unsigned int crypto_aead_chunksize(struct crypto_aead *tfm){	return crypto_aead_alg_chunksize(crypto_aead_alg(tfm));} int crypto_register_aead(struct aead_alg *alg);void crypto_unregister_aead(struct aead_alg *alg);int crypto_register_aeads(struct aead_alg *algs, int count);void crypto_unregister_aeads(struct aead_alg *algs, int count);int aead_register_instance(struct crypto_template *tmpl,			   struct aead_instance *inst); #endif	/* _CRYPTO_INTERNAL_AEAD_H */