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/*
* 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;
};
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_register_shash(struct shash_alg *alg);
int crypto_unregister_shash(struct shash_alg *alg);
static inline void *crypto_ahash_ctx(struct crypto_ahash *tfm)
{
return crypto_tfm_ctx(&tfm->base);
}
static inline struct ahash_alg *crypto_ahash_alg(
struct crypto_ahash *tfm)
{
return &crypto_ahash_tfm(tfm)->__crt_alg->cra_ahash;
}
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 void *ahash_request_ctx(struct ahash_request *req)
{
return req->__ctx;
}
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);
}
#endif /* _CRYPTO_INTERNAL_HASH_H */
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