]>
Commit | Line | Data |
---|---|---|
20036252 HX |
1 | /* |
2 | * Hash algorithms. | |
3 | * | |
4 | * Copyright (c) 2008 Herbert Xu <herbert@gondor.apana.org.au> | |
5 | * | |
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) | |
9 | * any later version. | |
10 | * | |
11 | */ | |
12 | ||
13 | #ifndef _CRYPTO_INTERNAL_HASH_H | |
14 | #define _CRYPTO_INTERNAL_HASH_H | |
15 | ||
16 | #include <crypto/algapi.h> | |
18e33e6d | 17 | #include <crypto/hash.h> |
20036252 HX |
18 | |
19 | struct ahash_request; | |
20 | struct scatterlist; | |
21 | ||
22 | struct crypto_hash_walk { | |
23 | char *data; | |
24 | ||
25 | unsigned int offset; | |
26 | unsigned int alignmask; | |
27 | ||
28 | struct page *pg; | |
29 | unsigned int entrylen; | |
30 | ||
31 | unsigned int total; | |
32 | struct scatterlist *sg; | |
33 | ||
34 | unsigned int flags; | |
35 | }; | |
36 | ||
01c2dece HX |
37 | struct ahash_instance { |
38 | struct ahash_alg alg; | |
39 | }; | |
40 | ||
2e4fddd8 HX |
41 | struct shash_instance { |
42 | struct shash_alg alg; | |
43 | }; | |
44 | ||
01c2dece HX |
45 | struct crypto_ahash_spawn { |
46 | struct crypto_spawn base; | |
47 | }; | |
48 | ||
94296999 HX |
49 | struct crypto_shash_spawn { |
50 | struct crypto_spawn base; | |
51 | }; | |
52 | ||
18e33e6d HX |
53 | extern const struct crypto_type crypto_ahash_type; |
54 | ||
20036252 HX |
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); | |
5f7082ed HX |
58 | int crypto_hash_walk_first_compat(struct hash_desc *hdesc, |
59 | struct crypto_hash_walk *walk, | |
60 | struct scatterlist *sg, unsigned int len); | |
20036252 | 61 | |
66f6ce5e HX |
62 | static inline int crypto_hash_walk_last(struct crypto_hash_walk *walk) |
63 | { | |
64 | return !(walk->entrylen | walk->total); | |
65 | } | |
66 | ||
88056ec3 HX |
67 | int crypto_register_ahash(struct ahash_alg *alg); |
68 | int crypto_unregister_ahash(struct ahash_alg *alg); | |
01c2dece HX |
69 | int ahash_register_instance(struct crypto_template *tmpl, |
70 | struct ahash_instance *inst); | |
71 | void ahash_free_instance(struct crypto_instance *inst); | |
72 | ||
73 | int crypto_init_ahash_spawn(struct crypto_ahash_spawn *spawn, | |
74 | struct hash_alg_common *alg, | |
75 | struct crypto_instance *inst); | |
76 | ||
52861c7c HX |
77 | static inline void crypto_drop_ahash(struct crypto_ahash_spawn *spawn) |
78 | { | |
79 | crypto_drop_spawn(&spawn->base); | |
80 | } | |
81 | ||
01c2dece | 82 | struct hash_alg_common *ahash_attr_alg(struct rtattr *rta, u32 type, u32 mask); |
88056ec3 | 83 | |
7b5a080b HX |
84 | int crypto_register_shash(struct shash_alg *alg); |
85 | int crypto_unregister_shash(struct shash_alg *alg); | |
619a6ebd HX |
86 | int shash_register_instance(struct crypto_template *tmpl, |
87 | struct shash_instance *inst); | |
2e4fddd8 HX |
88 | void shash_free_instance(struct crypto_instance *inst); |
89 | ||
94296999 HX |
90 | int crypto_init_shash_spawn(struct crypto_shash_spawn *spawn, |
91 | struct shash_alg *alg, | |
92 | struct crypto_instance *inst); | |
93 | ||
52861c7c HX |
94 | static inline void crypto_drop_shash(struct crypto_shash_spawn *spawn) |
95 | { | |
96 | crypto_drop_spawn(&spawn->base); | |
97 | } | |
98 | ||
7d6f5640 HX |
99 | struct shash_alg *shash_attr_alg(struct rtattr *rta, u32 type, u32 mask); |
100 | ||
7eddf95e | 101 | int shash_ahash_update(struct ahash_request *req, struct shash_desc *desc); |
66f6ce5e | 102 | int shash_ahash_finup(struct ahash_request *req, struct shash_desc *desc); |
7eddf95e HX |
103 | int shash_ahash_digest(struct ahash_request *req, struct shash_desc *desc); |
104 | ||
88056ec3 HX |
105 | int crypto_init_shash_ops_async(struct crypto_tfm *tfm); |
106 | ||
18e33e6d HX |
107 | static inline void *crypto_ahash_ctx(struct crypto_ahash *tfm) |
108 | { | |
88056ec3 | 109 | return crypto_tfm_ctx(crypto_ahash_tfm(tfm)); |
18e33e6d HX |
110 | } |
111 | ||
4dc10c01 HX |
112 | static inline struct ahash_alg *__crypto_ahash_alg(struct crypto_alg *alg) |
113 | { | |
114 | return container_of(__crypto_hash_alg_common(alg), struct ahash_alg, | |
115 | halg); | |
116 | } | |
117 | ||
fc00127f HX |
118 | static inline void crypto_ahash_set_reqsize(struct crypto_ahash *tfm, |
119 | unsigned int reqsize) | |
120 | { | |
88056ec3 | 121 | tfm->reqsize = reqsize; |
fc00127f HX |
122 | } |
123 | ||
01c2dece HX |
124 | static inline struct crypto_instance *ahash_crypto_instance( |
125 | struct ahash_instance *inst) | |
126 | { | |
127 | return container_of(&inst->alg.halg.base, struct crypto_instance, alg); | |
128 | } | |
129 | ||
130 | static inline struct ahash_instance *ahash_instance( | |
131 | struct crypto_instance *inst) | |
132 | { | |
133 | return container_of(&inst->alg, struct ahash_instance, alg.halg.base); | |
134 | } | |
135 | ||
136 | static inline void *ahash_instance_ctx(struct ahash_instance *inst) | |
137 | { | |
138 | return crypto_instance_ctx(ahash_crypto_instance(inst)); | |
139 | } | |
140 | ||
141 | static inline unsigned int ahash_instance_headroom(void) | |
142 | { | |
143 | return sizeof(struct ahash_alg) - sizeof(struct crypto_alg); | |
144 | } | |
145 | ||
146 | static inline struct ahash_instance *ahash_alloc_instance( | |
147 | const char *name, struct crypto_alg *alg) | |
148 | { | |
149 | return crypto_alloc_instance2(name, alg, ahash_instance_headroom()); | |
150 | } | |
151 | ||
152 | static inline struct crypto_ahash *crypto_spawn_ahash( | |
153 | struct crypto_ahash_spawn *spawn) | |
154 | { | |
155 | return crypto_spawn_tfm2(&spawn->base); | |
156 | } | |
157 | ||
18e33e6d HX |
158 | static inline int ahash_enqueue_request(struct crypto_queue *queue, |
159 | struct ahash_request *request) | |
160 | { | |
161 | return crypto_enqueue_request(queue, &request->base); | |
162 | } | |
163 | ||
164 | static inline struct ahash_request *ahash_dequeue_request( | |
165 | struct crypto_queue *queue) | |
166 | { | |
167 | return ahash_request_cast(crypto_dequeue_request(queue)); | |
168 | } | |
169 | ||
18e33e6d HX |
170 | static inline int ahash_tfm_in_queue(struct crypto_queue *queue, |
171 | struct crypto_ahash *tfm) | |
172 | { | |
173 | return crypto_tfm_in_queue(queue, crypto_ahash_tfm(tfm)); | |
174 | } | |
175 | ||
7b5a080b HX |
176 | static inline void *crypto_shash_ctx(struct crypto_shash *tfm) |
177 | { | |
178 | return crypto_tfm_ctx(&tfm->base); | |
179 | } | |
180 | ||
2e4fddd8 HX |
181 | static inline struct crypto_instance *shash_crypto_instance( |
182 | struct shash_instance *inst) | |
183 | { | |
184 | return container_of(&inst->alg.base, struct crypto_instance, alg); | |
185 | } | |
186 | ||
187 | static inline struct shash_instance *shash_instance( | |
188 | struct crypto_instance *inst) | |
189 | { | |
190 | return container_of(__crypto_shash_alg(&inst->alg), | |
191 | struct shash_instance, alg); | |
192 | } | |
193 | ||
ef5d590c HX |
194 | static inline void *shash_instance_ctx(struct shash_instance *inst) |
195 | { | |
196 | return crypto_instance_ctx(shash_crypto_instance(inst)); | |
197 | } | |
198 | ||
2e4fddd8 HX |
199 | static inline struct shash_instance *shash_alloc_instance( |
200 | const char *name, struct crypto_alg *alg) | |
201 | { | |
202 | return crypto_alloc_instance2(name, alg, | |
203 | sizeof(struct shash_alg) - sizeof(*alg)); | |
204 | } | |
205 | ||
94296999 HX |
206 | static inline struct crypto_shash *crypto_spawn_shash( |
207 | struct crypto_shash_spawn *spawn) | |
208 | { | |
209 | return crypto_spawn_tfm2(&spawn->base); | |
210 | } | |
211 | ||
cde6263f HX |
212 | static inline void *crypto_shash_ctx_aligned(struct crypto_shash *tfm) |
213 | { | |
214 | return crypto_tfm_ctx_aligned(&tfm->base); | |
215 | } | |
216 | ||
0390e6ae HX |
217 | static inline struct crypto_shash *__crypto_shash_cast(struct crypto_tfm *tfm) |
218 | { | |
113adefc | 219 | return container_of(tfm, struct crypto_shash, base); |
0390e6ae HX |
220 | } |
221 | ||
20036252 HX |
222 | #endif /* _CRYPTO_INTERNAL_HASH_H */ |
223 |