4 * Copyright (c) 2008 Herbert Xu <herbert@gondor.apana.org.au>
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the Free
8 * Software Foundation; either version 2 of the License, or (at your option)
13 #ifndef _CRYPTO_INTERNAL_HASH_H
14 #define _CRYPTO_INTERNAL_HASH_H
16 #include <crypto/algapi.h>
17 #include <crypto/hash.h>
22 struct crypto_hash_walk
{
26 unsigned int alignmask
;
29 unsigned int entrylen
;
32 struct scatterlist
*sg
;
37 struct shash_instance
{
41 struct crypto_shash_spawn
{
42 struct crypto_spawn base
;
45 extern const struct crypto_type crypto_ahash_type
;
47 int crypto_hash_walk_done(struct crypto_hash_walk
*walk
, int err
);
48 int crypto_hash_walk_first(struct ahash_request
*req
,
49 struct crypto_hash_walk
*walk
);
50 int crypto_hash_walk_first_compat(struct hash_desc
*hdesc
,
51 struct crypto_hash_walk
*walk
,
52 struct scatterlist
*sg
, unsigned int len
);
54 int crypto_register_shash(struct shash_alg
*alg
);
55 int crypto_unregister_shash(struct shash_alg
*alg
);
56 int shash_register_instance(struct crypto_template
*tmpl
,
57 struct shash_instance
*inst
);
58 void shash_free_instance(struct crypto_instance
*inst
);
60 int crypto_init_shash_spawn(struct crypto_shash_spawn
*spawn
,
61 struct shash_alg
*alg
,
62 struct crypto_instance
*inst
);
64 struct shash_alg
*shash_attr_alg(struct rtattr
*rta
, u32 type
, u32 mask
);
66 static inline void *crypto_ahash_ctx(struct crypto_ahash
*tfm
)
68 return crypto_tfm_ctx(&tfm
->base
);
71 static inline struct ahash_alg
*crypto_ahash_alg(
72 struct crypto_ahash
*tfm
)
74 return &crypto_ahash_tfm(tfm
)->__crt_alg
->cra_ahash
;
77 static inline int ahash_enqueue_request(struct crypto_queue
*queue
,
78 struct ahash_request
*request
)
80 return crypto_enqueue_request(queue
, &request
->base
);
83 static inline struct ahash_request
*ahash_dequeue_request(
84 struct crypto_queue
*queue
)
86 return ahash_request_cast(crypto_dequeue_request(queue
));
89 static inline int ahash_tfm_in_queue(struct crypto_queue
*queue
,
90 struct crypto_ahash
*tfm
)
92 return crypto_tfm_in_queue(queue
, crypto_ahash_tfm(tfm
));
95 static inline void *crypto_shash_ctx(struct crypto_shash
*tfm
)
97 return crypto_tfm_ctx(&tfm
->base
);
100 static inline struct crypto_instance
*shash_crypto_instance(
101 struct shash_instance
*inst
)
103 return container_of(&inst
->alg
.base
, struct crypto_instance
, alg
);
106 static inline struct shash_instance
*shash_instance(
107 struct crypto_instance
*inst
)
109 return container_of(__crypto_shash_alg(&inst
->alg
),
110 struct shash_instance
, alg
);
113 static inline struct shash_instance
*shash_alloc_instance(
114 const char *name
, struct crypto_alg
*alg
)
116 return crypto_alloc_instance2(name
, alg
,
117 sizeof(struct shash_alg
) - sizeof(*alg
));
120 static inline struct crypto_shash
*crypto_spawn_shash(
121 struct crypto_shash_spawn
*spawn
)
123 return crypto_spawn_tfm2(&spawn
->base
);
126 static inline void *crypto_shash_ctx_aligned(struct crypto_shash
*tfm
)
128 return crypto_tfm_ctx_aligned(&tfm
->base
);
131 #endif /* _CRYPTO_INTERNAL_HASH_H */