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Commit | Line | Data |
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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); | |
75ecb231 HX |
58 | int crypto_ahash_walk_first(struct ahash_request *req, |
59 | struct crypto_hash_walk *walk); | |
20036252 | 60 | |
75ecb231 HX |
61 | static inline int crypto_ahash_walk_done(struct crypto_hash_walk *walk, |
62 | int err) | |
63 | { | |
64 | return crypto_hash_walk_done(walk, err); | |
65 | } | |
66 | ||
66f6ce5e HX |
67 | static inline int crypto_hash_walk_last(struct crypto_hash_walk *walk) |
68 | { | |
69 | return !(walk->entrylen | walk->total); | |
70 | } | |
71 | ||
75ecb231 HX |
72 | static inline int crypto_ahash_walk_last(struct crypto_hash_walk *walk) |
73 | { | |
74 | return crypto_hash_walk_last(walk); | |
75 | } | |
76 | ||
88056ec3 HX |
77 | int crypto_register_ahash(struct ahash_alg *alg); |
78 | int crypto_unregister_ahash(struct ahash_alg *alg); | |
01c2dece HX |
79 | int ahash_register_instance(struct crypto_template *tmpl, |
80 | struct ahash_instance *inst); | |
81 | void ahash_free_instance(struct crypto_instance *inst); | |
82 | ||
83 | int crypto_init_ahash_spawn(struct crypto_ahash_spawn *spawn, | |
84 | struct hash_alg_common *alg, | |
85 | struct crypto_instance *inst); | |
86 | ||
52861c7c HX |
87 | static inline void crypto_drop_ahash(struct crypto_ahash_spawn *spawn) |
88 | { | |
89 | crypto_drop_spawn(&spawn->base); | |
90 | } | |
91 | ||
01c2dece | 92 | struct hash_alg_common *ahash_attr_alg(struct rtattr *rta, u32 type, u32 mask); |
88056ec3 | 93 | |
7b5a080b HX |
94 | int crypto_register_shash(struct shash_alg *alg); |
95 | int crypto_unregister_shash(struct shash_alg *alg); | |
50fc3e8d JK |
96 | int crypto_register_shashes(struct shash_alg *algs, int count); |
97 | int crypto_unregister_shashes(struct shash_alg *algs, int count); | |
619a6ebd HX |
98 | int shash_register_instance(struct crypto_template *tmpl, |
99 | struct shash_instance *inst); | |
2e4fddd8 HX |
100 | void shash_free_instance(struct crypto_instance *inst); |
101 | ||
94296999 HX |
102 | int crypto_init_shash_spawn(struct crypto_shash_spawn *spawn, |
103 | struct shash_alg *alg, | |
104 | struct crypto_instance *inst); | |
105 | ||
52861c7c HX |
106 | static inline void crypto_drop_shash(struct crypto_shash_spawn *spawn) |
107 | { | |
108 | crypto_drop_spawn(&spawn->base); | |
109 | } | |
110 | ||
7d6f5640 HX |
111 | struct shash_alg *shash_attr_alg(struct rtattr *rta, u32 type, u32 mask); |
112 | ||
7eddf95e | 113 | int shash_ahash_update(struct ahash_request *req, struct shash_desc *desc); |
66f6ce5e | 114 | int shash_ahash_finup(struct ahash_request *req, struct shash_desc *desc); |
7eddf95e | 115 | int shash_ahash_digest(struct ahash_request *req, struct shash_desc *desc); |
1e65b81a | 116 | |
331bf739 MD |
117 | int ahash_mcryptd_update(struct ahash_request *desc); |
118 | int ahash_mcryptd_final(struct ahash_request *desc); | |
119 | int ahash_mcryptd_finup(struct ahash_request *desc); | |
120 | int ahash_mcryptd_digest(struct ahash_request *desc); | |
7eddf95e | 121 | |
88056ec3 HX |
122 | int crypto_init_shash_ops_async(struct crypto_tfm *tfm); |
123 | ||
18e33e6d HX |
124 | static inline void *crypto_ahash_ctx(struct crypto_ahash *tfm) |
125 | { | |
88056ec3 | 126 | return crypto_tfm_ctx(crypto_ahash_tfm(tfm)); |
18e33e6d HX |
127 | } |
128 | ||
4dc10c01 HX |
129 | static inline struct ahash_alg *__crypto_ahash_alg(struct crypto_alg *alg) |
130 | { | |
131 | return container_of(__crypto_hash_alg_common(alg), struct ahash_alg, | |
132 | halg); | |
133 | } | |
134 | ||
fc00127f HX |
135 | static inline void crypto_ahash_set_reqsize(struct crypto_ahash *tfm, |
136 | unsigned int reqsize) | |
137 | { | |
88056ec3 | 138 | tfm->reqsize = reqsize; |
fc00127f HX |
139 | } |
140 | ||
01c2dece HX |
141 | static inline struct crypto_instance *ahash_crypto_instance( |
142 | struct ahash_instance *inst) | |
143 | { | |
144 | return container_of(&inst->alg.halg.base, struct crypto_instance, alg); | |
145 | } | |
146 | ||
147 | static inline struct ahash_instance *ahash_instance( | |
148 | struct crypto_instance *inst) | |
149 | { | |
150 | return container_of(&inst->alg, struct ahash_instance, alg.halg.base); | |
151 | } | |
152 | ||
153 | static inline void *ahash_instance_ctx(struct ahash_instance *inst) | |
154 | { | |
155 | return crypto_instance_ctx(ahash_crypto_instance(inst)); | |
156 | } | |
157 | ||
158 | static inline unsigned int ahash_instance_headroom(void) | |
159 | { | |
160 | return sizeof(struct ahash_alg) - sizeof(struct crypto_alg); | |
161 | } | |
162 | ||
163 | static inline struct ahash_instance *ahash_alloc_instance( | |
164 | const char *name, struct crypto_alg *alg) | |
165 | { | |
166 | return crypto_alloc_instance2(name, alg, ahash_instance_headroom()); | |
167 | } | |
168 | ||
ef0579b6 HX |
169 | static inline void ahash_request_complete(struct ahash_request *req, int err) |
170 | { | |
171 | req->base.complete(&req->base, err); | |
172 | } | |
173 | ||
174 | static inline u32 ahash_request_flags(struct ahash_request *req) | |
175 | { | |
176 | return req->base.flags; | |
177 | } | |
178 | ||
01c2dece HX |
179 | static inline struct crypto_ahash *crypto_spawn_ahash( |
180 | struct crypto_ahash_spawn *spawn) | |
181 | { | |
182 | return crypto_spawn_tfm2(&spawn->base); | |
183 | } | |
184 | ||
18e33e6d HX |
185 | static inline int ahash_enqueue_request(struct crypto_queue *queue, |
186 | struct ahash_request *request) | |
187 | { | |
188 | return crypto_enqueue_request(queue, &request->base); | |
189 | } | |
190 | ||
191 | static inline struct ahash_request *ahash_dequeue_request( | |
192 | struct crypto_queue *queue) | |
193 | { | |
194 | return ahash_request_cast(crypto_dequeue_request(queue)); | |
195 | } | |
196 | ||
18e33e6d HX |
197 | static inline int ahash_tfm_in_queue(struct crypto_queue *queue, |
198 | struct crypto_ahash *tfm) | |
199 | { | |
200 | return crypto_tfm_in_queue(queue, crypto_ahash_tfm(tfm)); | |
201 | } | |
202 | ||
7b5a080b HX |
203 | static inline void *crypto_shash_ctx(struct crypto_shash *tfm) |
204 | { | |
205 | return crypto_tfm_ctx(&tfm->base); | |
206 | } | |
207 | ||
2e4fddd8 HX |
208 | static inline struct crypto_instance *shash_crypto_instance( |
209 | struct shash_instance *inst) | |
210 | { | |
211 | return container_of(&inst->alg.base, struct crypto_instance, alg); | |
212 | } | |
213 | ||
214 | static inline struct shash_instance *shash_instance( | |
215 | struct crypto_instance *inst) | |
216 | { | |
217 | return container_of(__crypto_shash_alg(&inst->alg), | |
218 | struct shash_instance, alg); | |
219 | } | |
220 | ||
ef5d590c HX |
221 | static inline void *shash_instance_ctx(struct shash_instance *inst) |
222 | { | |
223 | return crypto_instance_ctx(shash_crypto_instance(inst)); | |
224 | } | |
225 | ||
2e4fddd8 HX |
226 | static inline struct shash_instance *shash_alloc_instance( |
227 | const char *name, struct crypto_alg *alg) | |
228 | { | |
229 | return crypto_alloc_instance2(name, alg, | |
230 | sizeof(struct shash_alg) - sizeof(*alg)); | |
231 | } | |
232 | ||
94296999 HX |
233 | static inline struct crypto_shash *crypto_spawn_shash( |
234 | struct crypto_shash_spawn *spawn) | |
235 | { | |
236 | return crypto_spawn_tfm2(&spawn->base); | |
237 | } | |
238 | ||
cde6263f HX |
239 | static inline void *crypto_shash_ctx_aligned(struct crypto_shash *tfm) |
240 | { | |
241 | return crypto_tfm_ctx_aligned(&tfm->base); | |
242 | } | |
243 | ||
0390e6ae HX |
244 | static inline struct crypto_shash *__crypto_shash_cast(struct crypto_tfm *tfm) |
245 | { | |
113adefc | 246 | return container_of(tfm, struct crypto_shash, base); |
0390e6ae HX |
247 | } |
248 | ||
20036252 HX |
249 | #endif /* _CRYPTO_INTERNAL_HASH_H */ |
250 |