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Commit | Line | Data |
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2874c5fd | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
20036252 HX |
2 | /* |
3 | * Hash algorithms. | |
4 | * | |
5 | * Copyright (c) 2008 Herbert Xu <herbert@gondor.apana.org.au> | |
20036252 HX |
6 | */ |
7 | ||
8 | #ifndef _CRYPTO_INTERNAL_HASH_H | |
9 | #define _CRYPTO_INTERNAL_HASH_H | |
10 | ||
11 | #include <crypto/algapi.h> | |
18e33e6d | 12 | #include <crypto/hash.h> |
20036252 HX |
13 | |
14 | struct ahash_request; | |
15 | struct scatterlist; | |
16 | ||
17 | struct crypto_hash_walk { | |
18 | char *data; | |
19 | ||
20 | unsigned int offset; | |
21 | unsigned int alignmask; | |
22 | ||
23 | struct page *pg; | |
24 | unsigned int entrylen; | |
25 | ||
26 | unsigned int total; | |
27 | struct scatterlist *sg; | |
28 | ||
29 | unsigned int flags; | |
30 | }; | |
31 | ||
01c2dece HX |
32 | struct ahash_instance { |
33 | struct ahash_alg alg; | |
34 | }; | |
35 | ||
2e4fddd8 HX |
36 | struct shash_instance { |
37 | struct shash_alg alg; | |
38 | }; | |
39 | ||
01c2dece HX |
40 | struct crypto_ahash_spawn { |
41 | struct crypto_spawn base; | |
42 | }; | |
43 | ||
94296999 HX |
44 | struct crypto_shash_spawn { |
45 | struct crypto_spawn base; | |
46 | }; | |
47 | ||
18e33e6d HX |
48 | extern const struct crypto_type crypto_ahash_type; |
49 | ||
20036252 HX |
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); | |
75ecb231 HX |
53 | int crypto_ahash_walk_first(struct ahash_request *req, |
54 | struct crypto_hash_walk *walk); | |
20036252 | 55 | |
75ecb231 HX |
56 | static inline int crypto_ahash_walk_done(struct crypto_hash_walk *walk, |
57 | int err) | |
58 | { | |
59 | return crypto_hash_walk_done(walk, err); | |
60 | } | |
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 | ||
75ecb231 HX |
67 | static inline int crypto_ahash_walk_last(struct crypto_hash_walk *walk) |
68 | { | |
69 | return crypto_hash_walk_last(walk); | |
70 | } | |
71 | ||
88056ec3 HX |
72 | int crypto_register_ahash(struct ahash_alg *alg); |
73 | int crypto_unregister_ahash(struct ahash_alg *alg); | |
6f7473c5 RV |
74 | int crypto_register_ahashes(struct ahash_alg *algs, int count); |
75 | void crypto_unregister_ahashes(struct ahash_alg *algs, int count); | |
01c2dece HX |
76 | int ahash_register_instance(struct crypto_template *tmpl, |
77 | struct ahash_instance *inst); | |
78 | void ahash_free_instance(struct crypto_instance *inst); | |
79 | ||
af3ff804 EB |
80 | int shash_no_setkey(struct crypto_shash *tfm, const u8 *key, |
81 | unsigned int keylen); | |
82 | ||
83 | static inline bool crypto_shash_alg_has_setkey(struct shash_alg *alg) | |
84 | { | |
85 | return alg->setkey != shash_no_setkey; | |
86 | } | |
87 | ||
cd6ed77a EB |
88 | bool crypto_hash_alg_has_setkey(struct hash_alg_common *halg); |
89 | ||
01c2dece HX |
90 | int crypto_init_ahash_spawn(struct crypto_ahash_spawn *spawn, |
91 | struct hash_alg_common *alg, | |
92 | struct crypto_instance *inst); | |
93 | ||
52861c7c HX |
94 | static inline void crypto_drop_ahash(struct crypto_ahash_spawn *spawn) |
95 | { | |
96 | crypto_drop_spawn(&spawn->base); | |
97 | } | |
98 | ||
01c2dece | 99 | struct hash_alg_common *ahash_attr_alg(struct rtattr *rta, u32 type, u32 mask); |
88056ec3 | 100 | |
7b5a080b HX |
101 | int crypto_register_shash(struct shash_alg *alg); |
102 | int crypto_unregister_shash(struct shash_alg *alg); | |
50fc3e8d JK |
103 | int crypto_register_shashes(struct shash_alg *algs, int count); |
104 | int crypto_unregister_shashes(struct shash_alg *algs, int count); | |
619a6ebd HX |
105 | int shash_register_instance(struct crypto_template *tmpl, |
106 | struct shash_instance *inst); | |
2e4fddd8 HX |
107 | void shash_free_instance(struct crypto_instance *inst); |
108 | ||
94296999 HX |
109 | int crypto_init_shash_spawn(struct crypto_shash_spawn *spawn, |
110 | struct shash_alg *alg, | |
111 | struct crypto_instance *inst); | |
112 | ||
52861c7c HX |
113 | static inline void crypto_drop_shash(struct crypto_shash_spawn *spawn) |
114 | { | |
115 | crypto_drop_spawn(&spawn->base); | |
116 | } | |
117 | ||
7d6f5640 HX |
118 | struct shash_alg *shash_attr_alg(struct rtattr *rta, u32 type, u32 mask); |
119 | ||
7eddf95e | 120 | int shash_ahash_update(struct ahash_request *req, struct shash_desc *desc); |
66f6ce5e | 121 | int shash_ahash_finup(struct ahash_request *req, struct shash_desc *desc); |
7eddf95e | 122 | int shash_ahash_digest(struct ahash_request *req, struct shash_desc *desc); |
1e65b81a | 123 | |
88056ec3 HX |
124 | int crypto_init_shash_ops_async(struct crypto_tfm *tfm); |
125 | ||
18e33e6d HX |
126 | static inline void *crypto_ahash_ctx(struct crypto_ahash *tfm) |
127 | { | |
88056ec3 | 128 | return crypto_tfm_ctx(crypto_ahash_tfm(tfm)); |
18e33e6d HX |
129 | } |
130 | ||
4dc10c01 HX |
131 | static inline struct ahash_alg *__crypto_ahash_alg(struct crypto_alg *alg) |
132 | { | |
133 | return container_of(__crypto_hash_alg_common(alg), struct ahash_alg, | |
134 | halg); | |
135 | } | |
136 | ||
fc00127f HX |
137 | static inline void crypto_ahash_set_reqsize(struct crypto_ahash *tfm, |
138 | unsigned int reqsize) | |
139 | { | |
88056ec3 | 140 | tfm->reqsize = reqsize; |
fc00127f HX |
141 | } |
142 | ||
01c2dece HX |
143 | static inline struct crypto_instance *ahash_crypto_instance( |
144 | struct ahash_instance *inst) | |
145 | { | |
146 | return container_of(&inst->alg.halg.base, struct crypto_instance, alg); | |
147 | } | |
148 | ||
149 | static inline struct ahash_instance *ahash_instance( | |
150 | struct crypto_instance *inst) | |
151 | { | |
152 | return container_of(&inst->alg, struct ahash_instance, alg.halg.base); | |
153 | } | |
154 | ||
155 | static inline void *ahash_instance_ctx(struct ahash_instance *inst) | |
156 | { | |
157 | return crypto_instance_ctx(ahash_crypto_instance(inst)); | |
158 | } | |
159 | ||
160 | static inline unsigned int ahash_instance_headroom(void) | |
161 | { | |
162 | return sizeof(struct ahash_alg) - sizeof(struct crypto_alg); | |
163 | } | |
164 | ||
165 | static inline struct ahash_instance *ahash_alloc_instance( | |
166 | const char *name, struct crypto_alg *alg) | |
167 | { | |
14aa1a83 | 168 | return crypto_alloc_instance(name, alg, ahash_instance_headroom()); |
01c2dece HX |
169 | } |
170 | ||
ef0579b6 HX |
171 | static inline void ahash_request_complete(struct ahash_request *req, int err) |
172 | { | |
173 | req->base.complete(&req->base, err); | |
174 | } | |
175 | ||
176 | static inline u32 ahash_request_flags(struct ahash_request *req) | |
177 | { | |
178 | return req->base.flags; | |
179 | } | |
180 | ||
01c2dece HX |
181 | static inline struct crypto_ahash *crypto_spawn_ahash( |
182 | struct crypto_ahash_spawn *spawn) | |
183 | { | |
184 | return crypto_spawn_tfm2(&spawn->base); | |
185 | } | |
186 | ||
18e33e6d HX |
187 | static inline int ahash_enqueue_request(struct crypto_queue *queue, |
188 | struct ahash_request *request) | |
189 | { | |
190 | return crypto_enqueue_request(queue, &request->base); | |
191 | } | |
192 | ||
193 | static inline struct ahash_request *ahash_dequeue_request( | |
194 | struct crypto_queue *queue) | |
195 | { | |
196 | return ahash_request_cast(crypto_dequeue_request(queue)); | |
197 | } | |
198 | ||
7b5a080b HX |
199 | static inline void *crypto_shash_ctx(struct crypto_shash *tfm) |
200 | { | |
201 | return crypto_tfm_ctx(&tfm->base); | |
202 | } | |
203 | ||
2e4fddd8 HX |
204 | static inline struct crypto_instance *shash_crypto_instance( |
205 | struct shash_instance *inst) | |
206 | { | |
207 | return container_of(&inst->alg.base, struct crypto_instance, alg); | |
208 | } | |
209 | ||
210 | static inline struct shash_instance *shash_instance( | |
211 | struct crypto_instance *inst) | |
212 | { | |
213 | return container_of(__crypto_shash_alg(&inst->alg), | |
214 | struct shash_instance, alg); | |
215 | } | |
216 | ||
ef5d590c HX |
217 | static inline void *shash_instance_ctx(struct shash_instance *inst) |
218 | { | |
219 | return crypto_instance_ctx(shash_crypto_instance(inst)); | |
220 | } | |
221 | ||
2e4fddd8 HX |
222 | static inline struct shash_instance *shash_alloc_instance( |
223 | const char *name, struct crypto_alg *alg) | |
224 | { | |
14aa1a83 EB |
225 | return crypto_alloc_instance(name, alg, |
226 | sizeof(struct shash_alg) - sizeof(*alg)); | |
2e4fddd8 HX |
227 | } |
228 | ||
94296999 HX |
229 | static inline struct crypto_shash *crypto_spawn_shash( |
230 | struct crypto_shash_spawn *spawn) | |
231 | { | |
232 | return crypto_spawn_tfm2(&spawn->base); | |
233 | } | |
234 | ||
cde6263f HX |
235 | static inline void *crypto_shash_ctx_aligned(struct crypto_shash *tfm) |
236 | { | |
237 | return crypto_tfm_ctx_aligned(&tfm->base); | |
238 | } | |
239 | ||
0390e6ae HX |
240 | static inline struct crypto_shash *__crypto_shash_cast(struct crypto_tfm *tfm) |
241 | { | |
113adefc | 242 | return container_of(tfm, struct crypto_shash, base); |
0390e6ae HX |
243 | } |
244 | ||
20036252 HX |
245 | #endif /* _CRYPTO_INTERNAL_HASH_H */ |
246 |