/* * Hash algorithms. *  * Copyright (c) 2008 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_HASH_H#define _CRYPTO_INTERNAL_HASH_H #include <crypto/algapi.h>#include <crypto/hash.h> struct ahash_request;struct scatterlist; struct crypto_hash_walk {	char *data; 	unsigned int offset;	unsigned int alignmask; 	struct page *pg;	unsigned int entrylen; 	unsigned int total;	struct scatterlist *sg; 	unsigned int flags;}; struct ahash_instance {	struct ahash_alg alg;}; struct shash_instance {	struct shash_alg alg;}; struct crypto_ahash_spawn {	struct crypto_spawn base;}; struct crypto_shash_spawn {	struct crypto_spawn base;}; extern const struct crypto_type crypto_ahash_type; int crypto_hash_walk_done(struct crypto_hash_walk *walk, int err);int crypto_hash_walk_first(struct ahash_request *req,			   struct crypto_hash_walk *walk);int crypto_hash_walk_first_compat(struct hash_desc *hdesc,				  struct crypto_hash_walk *walk,				  struct scatterlist *sg, unsigned int len); static inline int crypto_hash_walk_last(struct crypto_hash_walk *walk){	return !(walk->entrylen | walk->total);} int crypto_register_ahash(struct ahash_alg *alg);int crypto_unregister_ahash(struct ahash_alg *alg);int ahash_register_instance(struct crypto_template *tmpl,			    struct ahash_instance *inst);void ahash_free_instance(struct crypto_instance *inst); int crypto_init_ahash_spawn(struct crypto_ahash_spawn *spawn,			    struct hash_alg_common *alg,			    struct crypto_instance *inst); static inline void crypto_drop_ahash(struct crypto_ahash_spawn *spawn){	crypto_drop_spawn(&spawn->base);} struct hash_alg_common *ahash_attr_alg(struct rtattr *rta, u32 type, u32 mask); int crypto_register_shash(struct shash_alg *alg);int crypto_unregister_shash(struct shash_alg *alg);int crypto_register_shashes(struct shash_alg *algs, int count);int crypto_unregister_shashes(struct shash_alg *algs, int count);int shash_register_instance(struct crypto_template *tmpl,			    struct shash_instance *inst);void shash_free_instance(struct crypto_instance *inst); int crypto_init_shash_spawn(struct crypto_shash_spawn *spawn,			    struct shash_alg *alg,			    struct crypto_instance *inst); static inline void crypto_drop_shash(struct crypto_shash_spawn *spawn){	crypto_drop_spawn(&spawn->base);} struct shash_alg *shash_attr_alg(struct rtattr *rta, u32 type, u32 mask); int shash_ahash_update(struct ahash_request *req, struct shash_desc *desc);int shash_ahash_finup(struct ahash_request *req, struct shash_desc *desc);int shash_ahash_digest(struct ahash_request *req, struct shash_desc *desc); int crypto_init_shash_ops_async(struct crypto_tfm *tfm); static inline void *crypto_ahash_ctx(struct crypto_ahash *tfm){	return crypto_tfm_ctx(crypto_ahash_tfm(tfm));} static inline struct ahash_alg *__crypto_ahash_alg(struct crypto_alg *alg){	return container_of(__crypto_hash_alg_common(alg), struct ahash_alg,			    halg);} static inline void crypto_ahash_set_reqsize(struct crypto_ahash *tfm,					    unsigned int reqsize){	tfm->reqsize = reqsize;} static inline struct crypto_instance *ahash_crypto_instance(	struct ahash_instance *inst){	return container_of(&inst->alg.halg.base, struct crypto_instance, alg);} static inline struct ahash_instance *ahash_instance(	struct crypto_instance *inst){	return container_of(&inst->alg, struct ahash_instance, alg.halg.base);} static inline void *ahash_instance_ctx(struct ahash_instance *inst){	return crypto_instance_ctx(ahash_crypto_instance(inst));} static inline unsigned int ahash_instance_headroom(void){	return sizeof(struct ahash_alg) - sizeof(struct crypto_alg);} static inline struct ahash_instance *ahash_alloc_instance(	const char *name, struct crypto_alg *alg){	return crypto_alloc_instance2(name, alg, ahash_instance_headroom());} static inline struct crypto_ahash *crypto_spawn_ahash(	struct crypto_ahash_spawn *spawn){	return crypto_spawn_tfm2(&spawn->base);} static inline int ahash_enqueue_request(struct crypto_queue *queue,					     struct ahash_request *request){	return crypto_enqueue_request(queue, &request->base);} static inline struct ahash_request *ahash_dequeue_request(	struct crypto_queue *queue){	return ahash_request_cast(crypto_dequeue_request(queue));} static inline int ahash_tfm_in_queue(struct crypto_queue *queue,					  struct crypto_ahash *tfm){	return crypto_tfm_in_queue(queue, crypto_ahash_tfm(tfm));} static inline void *crypto_shash_ctx(struct crypto_shash *tfm){	return crypto_tfm_ctx(&tfm->base);} static inline struct crypto_instance *shash_crypto_instance(	struct shash_instance *inst){	return container_of(&inst->alg.base, struct crypto_instance, alg);} static inline struct shash_instance *shash_instance(	struct crypto_instance *inst){	return container_of(__crypto_shash_alg(&inst->alg),			    struct shash_instance, alg);} static inline void *shash_instance_ctx(struct shash_instance *inst){	return crypto_instance_ctx(shash_crypto_instance(inst));} static inline struct shash_instance *shash_alloc_instance(	const char *name, struct crypto_alg *alg){	return crypto_alloc_instance2(name, alg,				      sizeof(struct shash_alg) - sizeof(*alg));} static inline struct crypto_shash *crypto_spawn_shash(	struct crypto_shash_spawn *spawn){	return crypto_spawn_tfm2(&spawn->base);} static inline void *crypto_shash_ctx_aligned(struct crypto_shash *tfm){	return crypto_tfm_ctx_aligned(&tfm->base);} static inline struct crypto_shash *__crypto_shash_cast(struct crypto_tfm *tfm){	return container_of(tfm, struct crypto_shash, base);} #endif	/* _CRYPTO_INTERNAL_HASH_H */