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 */