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_hash_walk_first_compat(struct hash_desc
*hdesc
,
59 struct crypto_hash_walk
*walk
,
60 struct scatterlist
*sg
, unsigned int len
);
62 int crypto_register_ahash(struct ahash_alg
*alg
);
63 int crypto_unregister_ahash(struct ahash_alg
*alg
);
64 int ahash_register_instance(struct crypto_template
*tmpl
,
65 struct ahash_instance
*inst
);
66 void ahash_free_instance(struct crypto_instance
*inst
);
68 int crypto_init_ahash_spawn(struct crypto_ahash_spawn
*spawn
,
69 struct hash_alg_common
*alg
,
70 struct crypto_instance
*inst
);
72 static inline void crypto_drop_ahash(struct crypto_ahash_spawn
*spawn
)
74 crypto_drop_spawn(&spawn
->base
);
77 struct hash_alg_common
*ahash_attr_alg(struct rtattr
*rta
, u32 type
, u32 mask
);
79 int crypto_register_shash(struct shash_alg
*alg
);
80 int crypto_unregister_shash(struct shash_alg
*alg
);
81 int shash_register_instance(struct crypto_template
*tmpl
,
82 struct shash_instance
*inst
);
83 void shash_free_instance(struct crypto_instance
*inst
);
85 int crypto_init_shash_spawn(struct crypto_shash_spawn
*spawn
,
86 struct shash_alg
*alg
,
87 struct crypto_instance
*inst
);
89 static inline void crypto_drop_shash(struct crypto_shash_spawn
*spawn
)
91 crypto_drop_spawn(&spawn
->base
);
94 struct shash_alg
*shash_attr_alg(struct rtattr
*rta
, u32 type
, u32 mask
);
96 int shash_ahash_update(struct ahash_request
*req
, struct shash_desc
*desc
);
97 int shash_ahash_digest(struct ahash_request
*req
, struct shash_desc
*desc
);
99 int crypto_init_shash_ops_async(struct crypto_tfm
*tfm
);
101 static inline void *crypto_ahash_ctx(struct crypto_ahash
*tfm
)
103 return crypto_tfm_ctx(crypto_ahash_tfm(tfm
));
106 static inline struct ahash_alg
*__crypto_ahash_alg(struct crypto_alg
*alg
)
108 return container_of(__crypto_hash_alg_common(alg
), struct ahash_alg
,
112 static inline void crypto_ahash_set_reqsize(struct crypto_ahash
*tfm
,
113 unsigned int reqsize
)
115 tfm
->reqsize
= reqsize
;
118 static inline struct crypto_instance
*ahash_crypto_instance(
119 struct ahash_instance
*inst
)
121 return container_of(&inst
->alg
.halg
.base
, struct crypto_instance
, alg
);
124 static inline struct ahash_instance
*ahash_instance(
125 struct crypto_instance
*inst
)
127 return container_of(&inst
->alg
, struct ahash_instance
, alg
.halg
.base
);
130 static inline void *ahash_instance_ctx(struct ahash_instance
*inst
)
132 return crypto_instance_ctx(ahash_crypto_instance(inst
));
135 static inline unsigned int ahash_instance_headroom(void)
137 return sizeof(struct ahash_alg
) - sizeof(struct crypto_alg
);
140 static inline struct ahash_instance
*ahash_alloc_instance(
141 const char *name
, struct crypto_alg
*alg
)
143 return crypto_alloc_instance2(name
, alg
, ahash_instance_headroom());
146 static inline struct crypto_ahash
*crypto_spawn_ahash(
147 struct crypto_ahash_spawn
*spawn
)
149 return crypto_spawn_tfm2(&spawn
->base
);
152 static inline int ahash_enqueue_request(struct crypto_queue
*queue
,
153 struct ahash_request
*request
)
155 return crypto_enqueue_request(queue
, &request
->base
);
158 static inline struct ahash_request
*ahash_dequeue_request(
159 struct crypto_queue
*queue
)
161 return ahash_request_cast(crypto_dequeue_request(queue
));
164 static inline int ahash_tfm_in_queue(struct crypto_queue
*queue
,
165 struct crypto_ahash
*tfm
)
167 return crypto_tfm_in_queue(queue
, crypto_ahash_tfm(tfm
));
170 static inline void *crypto_shash_ctx(struct crypto_shash
*tfm
)
172 return crypto_tfm_ctx(&tfm
->base
);
175 static inline struct crypto_instance
*shash_crypto_instance(
176 struct shash_instance
*inst
)
178 return container_of(&inst
->alg
.base
, struct crypto_instance
, alg
);
181 static inline struct shash_instance
*shash_instance(
182 struct crypto_instance
*inst
)
184 return container_of(__crypto_shash_alg(&inst
->alg
),
185 struct shash_instance
, alg
);
188 static inline void *shash_instance_ctx(struct shash_instance
*inst
)
190 return crypto_instance_ctx(shash_crypto_instance(inst
));
193 static inline struct shash_instance
*shash_alloc_instance(
194 const char *name
, struct crypto_alg
*alg
)
196 return crypto_alloc_instance2(name
, alg
,
197 sizeof(struct shash_alg
) - sizeof(*alg
));
200 static inline struct crypto_shash
*crypto_spawn_shash(
201 struct crypto_shash_spawn
*spawn
)
203 return crypto_spawn_tfm2(&spawn
->base
);
206 static inline void *crypto_shash_ctx_aligned(struct crypto_shash
*tfm
)
208 return crypto_tfm_ctx_aligned(&tfm
->base
);
211 static inline struct crypto_shash
*__crypto_shash_cast(struct crypto_tfm
*tfm
)
213 return container_of(tfm
, struct crypto_shash
, base
);
216 #endif /* _CRYPTO_INTERNAL_HASH_H */