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
);
61 static inline int crypto_ahash_walk_done(struct crypto_hash_walk
*walk
,
64 return crypto_hash_walk_done(walk
, err
);
67 static inline int crypto_hash_walk_last(struct crypto_hash_walk
*walk
)
69 return !(walk
->entrylen
| walk
->total
);
72 static inline int crypto_ahash_walk_last(struct crypto_hash_walk
*walk
)
74 return crypto_hash_walk_last(walk
);
77 int crypto_register_ahash(struct ahash_alg
*alg
);
78 int crypto_unregister_ahash(struct ahash_alg
*alg
);
79 int crypto_register_ahashes(struct ahash_alg
*algs
, int count
);
80 void crypto_unregister_ahashes(struct ahash_alg
*algs
, int count
);
81 int ahash_register_instance(struct crypto_template
*tmpl
,
82 struct ahash_instance
*inst
);
83 void ahash_free_instance(struct crypto_instance
*inst
);
85 int shash_no_setkey(struct crypto_shash
*tfm
, const u8
*key
,
88 static inline bool crypto_shash_alg_has_setkey(struct shash_alg
*alg
)
90 return alg
->setkey
!= shash_no_setkey
;
93 int crypto_init_ahash_spawn(struct crypto_ahash_spawn
*spawn
,
94 struct hash_alg_common
*alg
,
95 struct crypto_instance
*inst
);
97 static inline void crypto_drop_ahash(struct crypto_ahash_spawn
*spawn
)
99 crypto_drop_spawn(&spawn
->base
);
102 struct hash_alg_common
*ahash_attr_alg(struct rtattr
*rta
, u32 type
, u32 mask
);
104 int crypto_register_shash(struct shash_alg
*alg
);
105 int crypto_unregister_shash(struct shash_alg
*alg
);
106 int crypto_register_shashes(struct shash_alg
*algs
, int count
);
107 int crypto_unregister_shashes(struct shash_alg
*algs
, int count
);
108 int shash_register_instance(struct crypto_template
*tmpl
,
109 struct shash_instance
*inst
);
110 void shash_free_instance(struct crypto_instance
*inst
);
112 int crypto_init_shash_spawn(struct crypto_shash_spawn
*spawn
,
113 struct shash_alg
*alg
,
114 struct crypto_instance
*inst
);
116 static inline void crypto_drop_shash(struct crypto_shash_spawn
*spawn
)
118 crypto_drop_spawn(&spawn
->base
);
121 struct shash_alg
*shash_attr_alg(struct rtattr
*rta
, u32 type
, u32 mask
);
123 int shash_ahash_update(struct ahash_request
*req
, struct shash_desc
*desc
);
124 int shash_ahash_finup(struct ahash_request
*req
, struct shash_desc
*desc
);
125 int shash_ahash_digest(struct ahash_request
*req
, struct shash_desc
*desc
);
127 int ahash_mcryptd_update(struct ahash_request
*desc
);
128 int ahash_mcryptd_final(struct ahash_request
*desc
);
129 int ahash_mcryptd_finup(struct ahash_request
*desc
);
130 int ahash_mcryptd_digest(struct ahash_request
*desc
);
132 int crypto_init_shash_ops_async(struct crypto_tfm
*tfm
);
134 static inline void *crypto_ahash_ctx(struct crypto_ahash
*tfm
)
136 return crypto_tfm_ctx(crypto_ahash_tfm(tfm
));
139 static inline struct ahash_alg
*__crypto_ahash_alg(struct crypto_alg
*alg
)
141 return container_of(__crypto_hash_alg_common(alg
), struct ahash_alg
,
145 static inline void crypto_ahash_set_reqsize(struct crypto_ahash
*tfm
,
146 unsigned int reqsize
)
148 tfm
->reqsize
= reqsize
;
151 static inline struct crypto_instance
*ahash_crypto_instance(
152 struct ahash_instance
*inst
)
154 return container_of(&inst
->alg
.halg
.base
, struct crypto_instance
, alg
);
157 static inline struct ahash_instance
*ahash_instance(
158 struct crypto_instance
*inst
)
160 return container_of(&inst
->alg
, struct ahash_instance
, alg
.halg
.base
);
163 static inline void *ahash_instance_ctx(struct ahash_instance
*inst
)
165 return crypto_instance_ctx(ahash_crypto_instance(inst
));
168 static inline unsigned int ahash_instance_headroom(void)
170 return sizeof(struct ahash_alg
) - sizeof(struct crypto_alg
);
173 static inline struct ahash_instance
*ahash_alloc_instance(
174 const char *name
, struct crypto_alg
*alg
)
176 return crypto_alloc_instance2(name
, alg
, ahash_instance_headroom());
179 static inline void ahash_request_complete(struct ahash_request
*req
, int err
)
181 req
->base
.complete(&req
->base
, err
);
184 static inline u32
ahash_request_flags(struct ahash_request
*req
)
186 return req
->base
.flags
;
189 static inline struct crypto_ahash
*crypto_spawn_ahash(
190 struct crypto_ahash_spawn
*spawn
)
192 return crypto_spawn_tfm2(&spawn
->base
);
195 static inline int ahash_enqueue_request(struct crypto_queue
*queue
,
196 struct ahash_request
*request
)
198 return crypto_enqueue_request(queue
, &request
->base
);
201 static inline struct ahash_request
*ahash_dequeue_request(
202 struct crypto_queue
*queue
)
204 return ahash_request_cast(crypto_dequeue_request(queue
));
207 static inline int ahash_tfm_in_queue(struct crypto_queue
*queue
,
208 struct crypto_ahash
*tfm
)
210 return crypto_tfm_in_queue(queue
, crypto_ahash_tfm(tfm
));
213 static inline void *crypto_shash_ctx(struct crypto_shash
*tfm
)
215 return crypto_tfm_ctx(&tfm
->base
);
218 static inline struct crypto_instance
*shash_crypto_instance(
219 struct shash_instance
*inst
)
221 return container_of(&inst
->alg
.base
, struct crypto_instance
, alg
);
224 static inline struct shash_instance
*shash_instance(
225 struct crypto_instance
*inst
)
227 return container_of(__crypto_shash_alg(&inst
->alg
),
228 struct shash_instance
, alg
);
231 static inline void *shash_instance_ctx(struct shash_instance
*inst
)
233 return crypto_instance_ctx(shash_crypto_instance(inst
));
236 static inline struct shash_instance
*shash_alloc_instance(
237 const char *name
, struct crypto_alg
*alg
)
239 return crypto_alloc_instance2(name
, alg
,
240 sizeof(struct shash_alg
) - sizeof(*alg
));
243 static inline struct crypto_shash
*crypto_spawn_shash(
244 struct crypto_shash_spawn
*spawn
)
246 return crypto_spawn_tfm2(&spawn
->base
);
249 static inline void *crypto_shash_ctx_aligned(struct crypto_shash
*tfm
)
251 return crypto_tfm_ctx_aligned(&tfm
->base
);
254 static inline struct crypto_shash
*__crypto_shash_cast(struct crypto_tfm
*tfm
)
256 return container_of(tfm
, struct crypto_shash
, base
);
259 #endif /* _CRYPTO_INTERNAL_HASH_H */