143 lines
3.5 KiB
C
143 lines
3.5 KiB
C
/*
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* Hash algorithms.
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*
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* Copyright (c) 2008 Herbert Xu <herbert@gondor.apana.org.au>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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*/
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#ifndef _CRYPTO_INTERNAL_HASH_H
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#define _CRYPTO_INTERNAL_HASH_H
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#include <crypto/algapi.h>
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#include <crypto/hash.h>
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struct ahash_request;
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struct scatterlist;
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struct crypto_hash_walk {
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char *data;
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unsigned int offset;
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unsigned int alignmask;
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struct page *pg;
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unsigned int entrylen;
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unsigned int total;
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struct scatterlist *sg;
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unsigned int flags;
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};
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struct shash_instance {
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struct shash_alg alg;
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};
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struct crypto_shash_spawn {
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struct crypto_spawn base;
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};
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extern const struct crypto_type crypto_ahash_type;
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int crypto_hash_walk_done(struct crypto_hash_walk *walk, int err);
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int crypto_hash_walk_first(struct ahash_request *req,
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struct crypto_hash_walk *walk);
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int crypto_hash_walk_first_compat(struct hash_desc *hdesc,
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struct crypto_hash_walk *walk,
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struct scatterlist *sg, unsigned int len);
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int crypto_register_shash(struct shash_alg *alg);
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int crypto_unregister_shash(struct shash_alg *alg);
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int shash_register_instance(struct crypto_template *tmpl,
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struct shash_instance *inst);
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void shash_free_instance(struct crypto_instance *inst);
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int crypto_init_shash_spawn(struct crypto_shash_spawn *spawn,
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struct shash_alg *alg,
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struct crypto_instance *inst);
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struct shash_alg *shash_attr_alg(struct rtattr *rta, u32 type, u32 mask);
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static inline void *crypto_ahash_ctx(struct crypto_ahash *tfm)
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{
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return crypto_tfm_ctx(&tfm->base);
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}
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static inline struct ahash_alg *crypto_ahash_alg(
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struct crypto_ahash *tfm)
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{
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return &crypto_ahash_tfm(tfm)->__crt_alg->cra_ahash;
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}
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static inline int ahash_enqueue_request(struct crypto_queue *queue,
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struct ahash_request *request)
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{
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return crypto_enqueue_request(queue, &request->base);
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}
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static inline struct ahash_request *ahash_dequeue_request(
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struct crypto_queue *queue)
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{
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return ahash_request_cast(crypto_dequeue_request(queue));
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}
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static inline int ahash_tfm_in_queue(struct crypto_queue *queue,
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struct crypto_ahash *tfm)
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{
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return crypto_tfm_in_queue(queue, crypto_ahash_tfm(tfm));
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}
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static inline void *crypto_shash_ctx(struct crypto_shash *tfm)
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{
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return crypto_tfm_ctx(&tfm->base);
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}
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static inline struct crypto_instance *shash_crypto_instance(
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struct shash_instance *inst)
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{
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return container_of(&inst->alg.base, struct crypto_instance, alg);
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}
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static inline struct shash_instance *shash_instance(
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struct crypto_instance *inst)
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{
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return container_of(__crypto_shash_alg(&inst->alg),
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struct shash_instance, alg);
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}
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static inline void *shash_instance_ctx(struct shash_instance *inst)
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{
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return crypto_instance_ctx(shash_crypto_instance(inst));
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}
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static inline struct shash_instance *shash_alloc_instance(
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const char *name, struct crypto_alg *alg)
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{
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return crypto_alloc_instance2(name, alg,
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sizeof(struct shash_alg) - sizeof(*alg));
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}
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static inline struct crypto_shash *crypto_spawn_shash(
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struct crypto_shash_spawn *spawn)
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{
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return crypto_spawn_tfm2(&spawn->base);
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}
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static inline void *crypto_shash_ctx_aligned(struct crypto_shash *tfm)
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{
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return crypto_tfm_ctx_aligned(&tfm->base);
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}
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static inline struct crypto_shash *__crypto_shash_cast(struct crypto_tfm *tfm)
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{
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return (struct crypto_shash *)tfm;
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}
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#endif /* _CRYPTO_INTERNAL_HASH_H */
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