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 ahash_instance
{
41 struct shash_instance
{
45 struct crypto_ahash_spawn
{
46 struct crypto_spawn base
;
49 struct crypto_shash_spawn
{
50 struct crypto_spawn base
;
53 extern const struct crypto_type crypto_ahash_type
;
55 int crypto_hash_walk_done(struct crypto_hash_walk
*walk
, int err
);
56 int crypto_hash_walk_first(struct ahash_request
*req
,
57 struct crypto_hash_walk
*walk
);
58 int crypto_ahash_walk_first(struct ahash_request
*req
,
59 struct crypto_hash_walk
*walk
);
60 int crypto_hash_walk_first_compat(struct hash_desc
*hdesc
,
61 struct crypto_hash_walk
*walk
,
62 struct scatterlist
*sg
, unsigned int len
);
64 static inline int crypto_ahash_walk_done(struct crypto_hash_walk
*walk
,
67 return crypto_hash_walk_done(walk
, err
);
70 static inline int crypto_hash_walk_last(struct crypto_hash_walk
*walk
)
72 return !(walk
->entrylen
| walk
->total
);
75 static inline int crypto_ahash_walk_last(struct crypto_hash_walk
*walk
)
77 return crypto_hash_walk_last(walk
);
80 int crypto_register_ahash(struct ahash_alg
*alg
);
81 int crypto_unregister_ahash(struct ahash_alg
*alg
);
82 int ahash_register_instance(struct crypto_template
*tmpl
,
83 struct ahash_instance
*inst
);
84 void ahash_free_instance(struct crypto_instance
*inst
);
86 int crypto_init_ahash_spawn(struct crypto_ahash_spawn
*spawn
,
87 struct hash_alg_common
*alg
,
88 struct crypto_instance
*inst
);
90 static inline void crypto_drop_ahash(struct crypto_ahash_spawn
*spawn
)
92 crypto_drop_spawn(&spawn
->base
);
95 struct hash_alg_common
*ahash_attr_alg(struct rtattr
*rta
, u32 type
, u32 mask
);
97 int crypto_register_shash(struct shash_alg
*alg
);
98 int crypto_unregister_shash(struct shash_alg
*alg
);
99 int crypto_register_shashes(struct shash_alg
*algs
, int count
);
100 int crypto_unregister_shashes(struct shash_alg
*algs
, int count
);
101 int shash_register_instance(struct crypto_template
*tmpl
,
102 struct shash_instance
*inst
);
103 void shash_free_instance(struct crypto_instance
*inst
);
105 int crypto_init_shash_spawn(struct crypto_shash_spawn
*spawn
,
106 struct shash_alg
*alg
,
107 struct crypto_instance
*inst
);
109 static inline void crypto_drop_shash(struct crypto_shash_spawn
*spawn
)
111 crypto_drop_spawn(&spawn
->base
);
114 struct shash_alg
*shash_attr_alg(struct rtattr
*rta
, u32 type
, u32 mask
);
116 int shash_ahash_update(struct ahash_request
*req
, struct shash_desc
*desc
);
117 int shash_ahash_finup(struct ahash_request
*req
, struct shash_desc
*desc
);
118 int shash_ahash_digest(struct ahash_request
*req
, struct shash_desc
*desc
);
120 int crypto_init_shash_ops_async(struct crypto_tfm
*tfm
);
122 static inline void *crypto_ahash_ctx(struct crypto_ahash
*tfm
)
124 return crypto_tfm_ctx(crypto_ahash_tfm(tfm
));
127 static inline struct ahash_alg
*__crypto_ahash_alg(struct crypto_alg
*alg
)
129 return container_of(__crypto_hash_alg_common(alg
), struct ahash_alg
,
133 static inline void crypto_ahash_set_reqsize(struct crypto_ahash
*tfm
,
134 unsigned int reqsize
)
136 tfm
->reqsize
= reqsize
;
139 static inline struct crypto_instance
*ahash_crypto_instance(
140 struct ahash_instance
*inst
)
142 return container_of(&inst
->alg
.halg
.base
, struct crypto_instance
, alg
);
145 static inline struct ahash_instance
*ahash_instance(
146 struct crypto_instance
*inst
)
148 return container_of(&inst
->alg
, struct ahash_instance
, alg
.halg
.base
);
151 static inline void *ahash_instance_ctx(struct ahash_instance
*inst
)
153 return crypto_instance_ctx(ahash_crypto_instance(inst
));
156 static inline unsigned int ahash_instance_headroom(void)
158 return sizeof(struct ahash_alg
) - sizeof(struct crypto_alg
);
161 static inline struct ahash_instance
*ahash_alloc_instance(
162 const char *name
, struct crypto_alg
*alg
)
164 return crypto_alloc_instance2(name
, alg
, ahash_instance_headroom());
167 static inline struct crypto_ahash
*crypto_spawn_ahash(
168 struct crypto_ahash_spawn
*spawn
)
170 return crypto_spawn_tfm2(&spawn
->base
);
173 static inline int ahash_enqueue_request(struct crypto_queue
*queue
,
174 struct ahash_request
*request
)
176 return crypto_enqueue_request(queue
, &request
->base
);
179 static inline struct ahash_request
*ahash_dequeue_request(
180 struct crypto_queue
*queue
)
182 return ahash_request_cast(crypto_dequeue_request(queue
));
185 static inline int ahash_tfm_in_queue(struct crypto_queue
*queue
,
186 struct crypto_ahash
*tfm
)
188 return crypto_tfm_in_queue(queue
, crypto_ahash_tfm(tfm
));
191 static inline void *crypto_shash_ctx(struct crypto_shash
*tfm
)
193 return crypto_tfm_ctx(&tfm
->base
);
196 static inline struct crypto_instance
*shash_crypto_instance(
197 struct shash_instance
*inst
)
199 return container_of(&inst
->alg
.base
, struct crypto_instance
, alg
);
202 static inline struct shash_instance
*shash_instance(
203 struct crypto_instance
*inst
)
205 return container_of(__crypto_shash_alg(&inst
->alg
),
206 struct shash_instance
, alg
);
209 static inline void *shash_instance_ctx(struct shash_instance
*inst
)
211 return crypto_instance_ctx(shash_crypto_instance(inst
));
214 static inline struct shash_instance
*shash_alloc_instance(
215 const char *name
, struct crypto_alg
*alg
)
217 return crypto_alloc_instance2(name
, alg
,
218 sizeof(struct shash_alg
) - sizeof(*alg
));
221 static inline struct crypto_shash
*crypto_spawn_shash(
222 struct crypto_shash_spawn
*spawn
)
224 return crypto_spawn_tfm2(&spawn
->base
);
227 static inline void *crypto_shash_ctx_aligned(struct crypto_shash
*tfm
)
229 return crypto_tfm_ctx_aligned(&tfm
->base
);
232 static inline struct crypto_shash
*__crypto_shash_cast(struct crypto_tfm
*tfm
)
234 return container_of(tfm
, struct crypto_shash
, base
);
237 #endif /* _CRYPTO_INTERNAL_HASH_H */