1 /* SPDX-License-Identifier: GPL-2.0-or-later */
5 * Copyright (c) 2008 Herbert Xu <herbert@gondor.apana.org.au>
8 #ifndef _CRYPTO_INTERNAL_HASH_H
9 #define _CRYPTO_INTERNAL_HASH_H
11 #include <crypto/algapi.h>
12 #include <crypto/hash.h>
17 struct crypto_hash_walk
{
21 unsigned int alignmask
;
24 unsigned int entrylen
;
27 struct scatterlist
*sg
;
32 struct ahash_instance
{
36 struct shash_instance
{
40 struct crypto_ahash_spawn
{
41 struct crypto_spawn base
;
44 struct crypto_shash_spawn
{
45 struct crypto_spawn base
;
48 extern const struct crypto_type crypto_ahash_type
;
50 int crypto_hash_walk_done(struct crypto_hash_walk
*walk
, int err
);
51 int crypto_hash_walk_first(struct ahash_request
*req
,
52 struct crypto_hash_walk
*walk
);
53 int crypto_ahash_walk_first(struct ahash_request
*req
,
54 struct crypto_hash_walk
*walk
);
56 static inline int crypto_ahash_walk_done(struct crypto_hash_walk
*walk
,
59 return crypto_hash_walk_done(walk
, err
);
62 static inline int crypto_hash_walk_last(struct crypto_hash_walk
*walk
)
64 return !(walk
->entrylen
| walk
->total
);
67 static inline int crypto_ahash_walk_last(struct crypto_hash_walk
*walk
)
69 return crypto_hash_walk_last(walk
);
72 int crypto_register_ahash(struct ahash_alg
*alg
);
73 int crypto_unregister_ahash(struct ahash_alg
*alg
);
74 int crypto_register_ahashes(struct ahash_alg
*algs
, int count
);
75 void crypto_unregister_ahashes(struct ahash_alg
*algs
, int count
);
76 int ahash_register_instance(struct crypto_template
*tmpl
,
77 struct ahash_instance
*inst
);
78 void ahash_free_instance(struct crypto_instance
*inst
);
80 int shash_no_setkey(struct crypto_shash
*tfm
, const u8
*key
,
83 static inline bool crypto_shash_alg_has_setkey(struct shash_alg
*alg
)
85 return alg
->setkey
!= shash_no_setkey
;
88 bool crypto_hash_alg_has_setkey(struct hash_alg_common
*halg
);
90 int crypto_init_ahash_spawn(struct crypto_ahash_spawn
*spawn
,
91 struct hash_alg_common
*alg
,
92 struct crypto_instance
*inst
);
94 static inline void crypto_drop_ahash(struct crypto_ahash_spawn
*spawn
)
96 crypto_drop_spawn(&spawn
->base
);
99 struct hash_alg_common
*ahash_attr_alg(struct rtattr
*rta
, u32 type
, u32 mask
);
101 int crypto_register_shash(struct shash_alg
*alg
);
102 int crypto_unregister_shash(struct shash_alg
*alg
);
103 int crypto_register_shashes(struct shash_alg
*algs
, int count
);
104 int crypto_unregister_shashes(struct shash_alg
*algs
, int count
);
105 int shash_register_instance(struct crypto_template
*tmpl
,
106 struct shash_instance
*inst
);
107 void shash_free_instance(struct crypto_instance
*inst
);
109 int crypto_init_shash_spawn(struct crypto_shash_spawn
*spawn
,
110 struct shash_alg
*alg
,
111 struct crypto_instance
*inst
);
113 static inline void crypto_drop_shash(struct crypto_shash_spawn
*spawn
)
115 crypto_drop_spawn(&spawn
->base
);
118 struct shash_alg
*shash_attr_alg(struct rtattr
*rta
, u32 type
, u32 mask
);
120 int shash_ahash_update(struct ahash_request
*req
, struct shash_desc
*desc
);
121 int shash_ahash_finup(struct ahash_request
*req
, struct shash_desc
*desc
);
122 int shash_ahash_digest(struct ahash_request
*req
, struct shash_desc
*desc
);
124 int crypto_init_shash_ops_async(struct crypto_tfm
*tfm
);
126 static inline void *crypto_ahash_ctx(struct crypto_ahash
*tfm
)
128 return crypto_tfm_ctx(crypto_ahash_tfm(tfm
));
131 static inline struct ahash_alg
*__crypto_ahash_alg(struct crypto_alg
*alg
)
133 return container_of(__crypto_hash_alg_common(alg
), struct ahash_alg
,
137 static inline void crypto_ahash_set_reqsize(struct crypto_ahash
*tfm
,
138 unsigned int reqsize
)
140 tfm
->reqsize
= reqsize
;
143 static inline struct crypto_instance
*ahash_crypto_instance(
144 struct ahash_instance
*inst
)
146 return container_of(&inst
->alg
.halg
.base
, struct crypto_instance
, alg
);
149 static inline struct ahash_instance
*ahash_instance(
150 struct crypto_instance
*inst
)
152 return container_of(&inst
->alg
, struct ahash_instance
, alg
.halg
.base
);
155 static inline void *ahash_instance_ctx(struct ahash_instance
*inst
)
157 return crypto_instance_ctx(ahash_crypto_instance(inst
));
160 static inline unsigned int ahash_instance_headroom(void)
162 return sizeof(struct ahash_alg
) - sizeof(struct crypto_alg
);
165 static inline struct ahash_instance
*ahash_alloc_instance(
166 const char *name
, struct crypto_alg
*alg
)
168 return crypto_alloc_instance(name
, alg
, ahash_instance_headroom());
171 static inline void ahash_request_complete(struct ahash_request
*req
, int err
)
173 req
->base
.complete(&req
->base
, err
);
176 static inline u32
ahash_request_flags(struct ahash_request
*req
)
178 return req
->base
.flags
;
181 static inline struct crypto_ahash
*crypto_spawn_ahash(
182 struct crypto_ahash_spawn
*spawn
)
184 return crypto_spawn_tfm2(&spawn
->base
);
187 static inline int ahash_enqueue_request(struct crypto_queue
*queue
,
188 struct ahash_request
*request
)
190 return crypto_enqueue_request(queue
, &request
->base
);
193 static inline struct ahash_request
*ahash_dequeue_request(
194 struct crypto_queue
*queue
)
196 return ahash_request_cast(crypto_dequeue_request(queue
));
199 static inline void *crypto_shash_ctx(struct crypto_shash
*tfm
)
201 return crypto_tfm_ctx(&tfm
->base
);
204 static inline struct crypto_instance
*shash_crypto_instance(
205 struct shash_instance
*inst
)
207 return container_of(&inst
->alg
.base
, struct crypto_instance
, alg
);
210 static inline struct shash_instance
*shash_instance(
211 struct crypto_instance
*inst
)
213 return container_of(__crypto_shash_alg(&inst
->alg
),
214 struct shash_instance
, alg
);
217 static inline void *shash_instance_ctx(struct shash_instance
*inst
)
219 return crypto_instance_ctx(shash_crypto_instance(inst
));
222 static inline struct shash_instance
*shash_alloc_instance(
223 const char *name
, struct crypto_alg
*alg
)
225 return crypto_alloc_instance(name
, alg
,
226 sizeof(struct shash_alg
) - sizeof(*alg
));
229 static inline struct crypto_shash
*crypto_spawn_shash(
230 struct crypto_shash_spawn
*spawn
)
232 return crypto_spawn_tfm2(&spawn
->base
);
235 static inline void *crypto_shash_ctx_aligned(struct crypto_shash
*tfm
)
237 return crypto_tfm_ctx_aligned(&tfm
->base
);
240 static inline struct crypto_shash
*__crypto_shash_cast(struct crypto_tfm
*tfm
)
242 return container_of(tfm
, struct crypto_shash
, base
);
245 #endif /* _CRYPTO_INTERNAL_HASH_H */