This source file includes following definitions.
- crypto_ahash_walk_done
- crypto_hash_walk_last
- crypto_ahash_walk_last
- crypto_shash_alg_has_setkey
- crypto_drop_ahash
- crypto_drop_shash
- crypto_ahash_ctx
- __crypto_ahash_alg
- crypto_ahash_set_reqsize
- ahash_crypto_instance
- ahash_instance_ctx
- ahash_instance_headroom
- ahash_alloc_instance
- ahash_request_complete
- ahash_request_flags
- crypto_spawn_ahash
- ahash_enqueue_request
- ahash_dequeue_request
- crypto_shash_ctx
- shash_crypto_instance
- shash_instance_ctx
- shash_alloc_instance
- crypto_spawn_shash
- crypto_shash_ctx_aligned
- __crypto_shash_cast
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8 #ifndef _CRYPTO_INTERNAL_HASH_H
9 #define _CRYPTO_INTERNAL_HASH_H
10
11 #include <crypto/algapi.h>
12 #include <crypto/hash.h>
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
32 struct ahash_instance {
33 struct ahash_alg alg;
34 };
35
36 struct shash_instance {
37 struct shash_alg alg;
38 };
39
40 struct crypto_ahash_spawn {
41 struct crypto_spawn base;
42 };
43
44 struct crypto_shash_spawn {
45 struct crypto_spawn base;
46 };
47
48 extern const struct crypto_type crypto_ahash_type;
49
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);
55
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
62 static inline int crypto_hash_walk_last(struct crypto_hash_walk *walk)
63 {
64 return !(walk->entrylen | walk->total);
65 }
66
67 static inline int crypto_ahash_walk_last(struct crypto_hash_walk *walk)
68 {
69 return crypto_hash_walk_last(walk);
70 }
71
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);
79
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
88 bool crypto_hash_alg_has_setkey(struct hash_alg_common *halg);
89
90 int crypto_init_ahash_spawn(struct crypto_ahash_spawn *spawn,
91 struct hash_alg_common *alg,
92 struct crypto_instance *inst);
93
94 static inline void crypto_drop_ahash(struct crypto_ahash_spawn *spawn)
95 {
96 crypto_drop_spawn(&spawn->base);
97 }
98
99 struct hash_alg_common *ahash_attr_alg(struct rtattr *rta, u32 type, u32 mask);
100
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);
108
109 int crypto_init_shash_spawn(struct crypto_shash_spawn *spawn,
110 struct shash_alg *alg,
111 struct crypto_instance *inst);
112
113 static inline void crypto_drop_shash(struct crypto_shash_spawn *spawn)
114 {
115 crypto_drop_spawn(&spawn->base);
116 }
117
118 struct shash_alg *shash_attr_alg(struct rtattr *rta, u32 type, u32 mask);
119
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);
123
124 int crypto_init_shash_ops_async(struct crypto_tfm *tfm);
125
126 static inline void *crypto_ahash_ctx(struct crypto_ahash *tfm)
127 {
128 return crypto_tfm_ctx(crypto_ahash_tfm(tfm));
129 }
130
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
137 static inline void crypto_ahash_set_reqsize(struct crypto_ahash *tfm,
138 unsigned int reqsize)
139 {
140 tfm->reqsize = reqsize;
141 }
142
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 {
168 return crypto_alloc_instance(name, alg, ahash_instance_headroom());
169 }
170
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
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
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
199 static inline void *crypto_shash_ctx(struct crypto_shash *tfm)
200 {
201 return crypto_tfm_ctx(&tfm->base);
202 }
203
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
217 static inline void *shash_instance_ctx(struct shash_instance *inst)
218 {
219 return crypto_instance_ctx(shash_crypto_instance(inst));
220 }
221
222 static inline struct shash_instance *shash_alloc_instance(
223 const char *name, struct crypto_alg *alg)
224 {
225 return crypto_alloc_instance(name, alg,
226 sizeof(struct shash_alg) - sizeof(*alg));
227 }
228
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
235 static inline void *crypto_shash_ctx_aligned(struct crypto_shash *tfm)
236 {
237 return crypto_tfm_ctx_aligned(&tfm->base);
238 }
239
240 static inline struct crypto_shash *__crypto_shash_cast(struct crypto_tfm *tfm)
241 {
242 return container_of(tfm, struct crypto_shash, base);
243 }
244
245 #endif
246