1/* SPDX-License-Identifier: GPL-2.0-or-later */
  2/*
  3 * Hash algorithms.
  4 * 
  5 * Copyright (c) 2008 Herbert Xu <herbert@gondor.apana.org.au>
 
 
 
 
 
 
  6 */
  7
  8#ifndef _CRYPTO_INTERNAL_HASH_H
  9#define _CRYPTO_INTERNAL_HASH_H
 10
 11#include <crypto/algapi.h>
 12#include <crypto/hash.h>
 13
 14struct ahash_request;
 15struct scatterlist;
 16
 17struct 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
 32struct ahash_instance {
 33	struct ahash_alg alg;
 34};
 35
 36struct shash_instance {
 37	struct shash_alg alg;
 38};
 39
 40struct crypto_ahash_spawn {
 41	struct crypto_spawn base;
 42};
 43
 44struct crypto_shash_spawn {
 45	struct crypto_spawn base;
 46};
 47
 48extern const struct crypto_type crypto_ahash_type;
 49
 50int crypto_hash_walk_done(struct crypto_hash_walk *walk, int err);
 51int crypto_hash_walk_first(struct ahash_request *req,
 52			   struct crypto_hash_walk *walk);
 53int crypto_ahash_walk_first(struct ahash_request *req,
 54			   struct crypto_hash_walk *walk);
 55
 56static 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
 62static inline int crypto_hash_walk_last(struct crypto_hash_walk *walk)
 63{
 64	return !(walk->entrylen | walk->total);
 65}
 66
 67static inline int crypto_ahash_walk_last(struct crypto_hash_walk *walk)
 68{
 69	return crypto_hash_walk_last(walk);
 70}
 71
 72int crypto_register_ahash(struct ahash_alg *alg);
 73int crypto_unregister_ahash(struct ahash_alg *alg);
 74int crypto_register_ahashes(struct ahash_alg *algs, int count);
 75void crypto_unregister_ahashes(struct ahash_alg *algs, int count);
 76int ahash_register_instance(struct crypto_template *tmpl,
 77			    struct ahash_instance *inst);
 78void ahash_free_instance(struct crypto_instance *inst);
 79
 80int shash_no_setkey(struct crypto_shash *tfm, const u8 *key,
 81		    unsigned int keylen);
 82
 83static inline bool crypto_shash_alg_has_setkey(struct shash_alg *alg)
 84{
 85	return alg->setkey != shash_no_setkey;
 86}
 87
 88bool crypto_hash_alg_has_setkey(struct hash_alg_common *halg);
 89
 90int crypto_init_ahash_spawn(struct crypto_ahash_spawn *spawn,
 91			    struct hash_alg_common *alg,
 92			    struct crypto_instance *inst);
 93
 94static inline void crypto_drop_ahash(struct crypto_ahash_spawn *spawn)
 95{
 96	crypto_drop_spawn(&spawn->base);
 97}
 98
 99struct hash_alg_common *ahash_attr_alg(struct rtattr *rta, u32 type, u32 mask);
100
101int crypto_register_shash(struct shash_alg *alg);
102int crypto_unregister_shash(struct shash_alg *alg);
103int crypto_register_shashes(struct shash_alg *algs, int count);
104int crypto_unregister_shashes(struct shash_alg *algs, int count);
105int shash_register_instance(struct crypto_template *tmpl,
106			    struct shash_instance *inst);
107void shash_free_instance(struct crypto_instance *inst);
108
109int crypto_init_shash_spawn(struct crypto_shash_spawn *spawn,
110			    struct shash_alg *alg,
111			    struct crypto_instance *inst);
112
113static inline void crypto_drop_shash(struct crypto_shash_spawn *spawn)
114{
115	crypto_drop_spawn(&spawn->base);
116}
117
118struct shash_alg *shash_attr_alg(struct rtattr *rta, u32 type, u32 mask);
119
120int shash_ahash_update(struct ahash_request *req, struct shash_desc *desc);
121int shash_ahash_finup(struct ahash_request *req, struct shash_desc *desc);
122int shash_ahash_digest(struct ahash_request *req, struct shash_desc *desc);
123
124int crypto_init_shash_ops_async(struct crypto_tfm *tfm);
125
126static inline void *crypto_ahash_ctx(struct crypto_ahash *tfm)
127{
128	return crypto_tfm_ctx(crypto_ahash_tfm(tfm));
129}
130
131static 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
137static inline void crypto_ahash_set_reqsize(struct crypto_ahash *tfm,
138					    unsigned int reqsize)
139{
140	tfm->reqsize = reqsize;
141}
142
143static 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
149static 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
155static inline void *ahash_instance_ctx(struct ahash_instance *inst)
156{
157	return crypto_instance_ctx(ahash_crypto_instance(inst));
158}
159
160static inline unsigned int ahash_instance_headroom(void)
161{
162	return sizeof(struct ahash_alg) - sizeof(struct crypto_alg);
163}
164
165static 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
171static inline void ahash_request_complete(struct ahash_request *req, int err)
172{
173	req->base.complete(&req->base, err);
174}
175
176static inline u32 ahash_request_flags(struct ahash_request *req)
177{
178	return req->base.flags;
179}
180
181static inline struct crypto_ahash *crypto_spawn_ahash(
182	struct crypto_ahash_spawn *spawn)
183{
184	return crypto_spawn_tfm2(&spawn->base);
185}
186
187static 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
193static inline struct ahash_request *ahash_dequeue_request(
194	struct crypto_queue *queue)
195{
196	return ahash_request_cast(crypto_dequeue_request(queue));
197}
198
 
 
 
 
 
 
199static inline void *crypto_shash_ctx(struct crypto_shash *tfm)
200{
201	return crypto_tfm_ctx(&tfm->base);
202}
203
204static 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
210static 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
217static inline void *shash_instance_ctx(struct shash_instance *inst)
218{
219	return crypto_instance_ctx(shash_crypto_instance(inst));
220}
221
222static 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
229static inline struct crypto_shash *crypto_spawn_shash(
230	struct crypto_shash_spawn *spawn)
231{
232	return crypto_spawn_tfm2(&spawn->base);
233}
234
235static inline void *crypto_shash_ctx_aligned(struct crypto_shash *tfm)
236{
237	return crypto_tfm_ctx_aligned(&tfm->base);
238}
239
240static 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	/* _CRYPTO_INTERNAL_HASH_H */
246

 
  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>
 17#include <crypto/hash.h>
 18
 19struct ahash_request;
 20struct scatterlist;
 21
 22struct 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
 37struct ahash_instance {
 38	struct ahash_alg alg;
 39};
 40
 41struct shash_instance {
 42	struct shash_alg alg;
 43};
 44
 45struct crypto_ahash_spawn {
 46	struct crypto_spawn base;
 47};
 48
 49struct crypto_shash_spawn {
 50	struct crypto_spawn base;
 51};
 52
 53extern const struct crypto_type crypto_ahash_type;
 54
 55int crypto_hash_walk_done(struct crypto_hash_walk *walk, int err);
 56int crypto_hash_walk_first(struct ahash_request *req,
 57			   struct crypto_hash_walk *walk);
 58int crypto_ahash_walk_first(struct ahash_request *req,
 59			   struct crypto_hash_walk *walk);
 60
 61static 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
 67static inline int crypto_hash_walk_last(struct crypto_hash_walk *walk)
 68{
 69	return !(walk->entrylen | walk->total);
 70}
 71
 72static inline int crypto_ahash_walk_last(struct crypto_hash_walk *walk)
 73{
 74	return crypto_hash_walk_last(walk);
 75}
 76
 77int crypto_register_ahash(struct ahash_alg *alg);
 78int crypto_unregister_ahash(struct ahash_alg *alg);
 79int crypto_register_ahashes(struct ahash_alg *algs, int count);
 80void crypto_unregister_ahashes(struct ahash_alg *algs, int count);
 81int ahash_register_instance(struct crypto_template *tmpl,
 82			    struct ahash_instance *inst);
 83void ahash_free_instance(struct crypto_instance *inst);
 84
 85int shash_no_setkey(struct crypto_shash *tfm, const u8 *key,
 86		    unsigned int keylen);
 87
 88static inline bool crypto_shash_alg_has_setkey(struct shash_alg *alg)
 89{
 90	return alg->setkey != shash_no_setkey;
 91}
 92
 93bool crypto_hash_alg_has_setkey(struct hash_alg_common *halg);
 94
 95int crypto_init_ahash_spawn(struct crypto_ahash_spawn *spawn,
 96			    struct hash_alg_common *alg,
 97			    struct crypto_instance *inst);
 98
 99static inline void crypto_drop_ahash(struct crypto_ahash_spawn *spawn)
100{
101	crypto_drop_spawn(&spawn->base);
102}
103
104struct hash_alg_common *ahash_attr_alg(struct rtattr *rta, u32 type, u32 mask);
105
106int crypto_register_shash(struct shash_alg *alg);
107int crypto_unregister_shash(struct shash_alg *alg);
108int crypto_register_shashes(struct shash_alg *algs, int count);
109int crypto_unregister_shashes(struct shash_alg *algs, int count);
110int shash_register_instance(struct crypto_template *tmpl,
111			    struct shash_instance *inst);
112void shash_free_instance(struct crypto_instance *inst);
113
114int crypto_init_shash_spawn(struct crypto_shash_spawn *spawn,
115			    struct shash_alg *alg,
116			    struct crypto_instance *inst);
117
118static inline void crypto_drop_shash(struct crypto_shash_spawn *spawn)
119{
120	crypto_drop_spawn(&spawn->base);
121}
122
123struct shash_alg *shash_attr_alg(struct rtattr *rta, u32 type, u32 mask);
124
125int shash_ahash_update(struct ahash_request *req, struct shash_desc *desc);
126int shash_ahash_finup(struct ahash_request *req, struct shash_desc *desc);
127int shash_ahash_digest(struct ahash_request *req, struct shash_desc *desc);
128
129int crypto_init_shash_ops_async(struct crypto_tfm *tfm);
130
131static inline void *crypto_ahash_ctx(struct crypto_ahash *tfm)
132{
133	return crypto_tfm_ctx(crypto_ahash_tfm(tfm));
134}
135
136static inline struct ahash_alg *__crypto_ahash_alg(struct crypto_alg *alg)
137{
138	return container_of(__crypto_hash_alg_common(alg), struct ahash_alg,
139			    halg);
140}
141
142static inline void crypto_ahash_set_reqsize(struct crypto_ahash *tfm,
143					    unsigned int reqsize)
144{
145	tfm->reqsize = reqsize;
146}
147
148static inline struct crypto_instance *ahash_crypto_instance(
149	struct ahash_instance *inst)
150{
151	return container_of(&inst->alg.halg.base, struct crypto_instance, alg);
152}
153
154static inline struct ahash_instance *ahash_instance(
155	struct crypto_instance *inst)
156{
157	return container_of(&inst->alg, struct ahash_instance, alg.halg.base);
158}
159
160static inline void *ahash_instance_ctx(struct ahash_instance *inst)
161{
162	return crypto_instance_ctx(ahash_crypto_instance(inst));
163}
164
165static inline unsigned int ahash_instance_headroom(void)
166{
167	return sizeof(struct ahash_alg) - sizeof(struct crypto_alg);
168}
169
170static inline struct ahash_instance *ahash_alloc_instance(
171	const char *name, struct crypto_alg *alg)
172{
173	return crypto_alloc_instance2(name, alg, ahash_instance_headroom());
174}
175
176static inline void ahash_request_complete(struct ahash_request *req, int err)
177{
178	req->base.complete(&req->base, err);
179}
180
181static inline u32 ahash_request_flags(struct ahash_request *req)
182{
183	return req->base.flags;
184}
185
186static inline struct crypto_ahash *crypto_spawn_ahash(
187	struct crypto_ahash_spawn *spawn)
188{
189	return crypto_spawn_tfm2(&spawn->base);
190}
191
192static inline int ahash_enqueue_request(struct crypto_queue *queue,
193					     struct ahash_request *request)
194{
195	return crypto_enqueue_request(queue, &request->base);
196}
197
198static inline struct ahash_request *ahash_dequeue_request(
199	struct crypto_queue *queue)
200{
201	return ahash_request_cast(crypto_dequeue_request(queue));
202}
203
204static inline int ahash_tfm_in_queue(struct crypto_queue *queue,
205					  struct crypto_ahash *tfm)
206{
207	return crypto_tfm_in_queue(queue, crypto_ahash_tfm(tfm));
208}
209
210static inline void *crypto_shash_ctx(struct crypto_shash *tfm)
211{
212	return crypto_tfm_ctx(&tfm->base);
213}
214
215static inline struct crypto_instance *shash_crypto_instance(
216	struct shash_instance *inst)
217{
218	return container_of(&inst->alg.base, struct crypto_instance, alg);
219}
220
221static inline struct shash_instance *shash_instance(
222	struct crypto_instance *inst)
223{
224	return container_of(__crypto_shash_alg(&inst->alg),
225			    struct shash_instance, alg);
226}
227
228static inline void *shash_instance_ctx(struct shash_instance *inst)
229{
230	return crypto_instance_ctx(shash_crypto_instance(inst));
231}
232
233static inline struct shash_instance *shash_alloc_instance(
234	const char *name, struct crypto_alg *alg)
235{
236	return crypto_alloc_instance2(name, alg,
237				      sizeof(struct shash_alg) - sizeof(*alg));
238}
239
240static inline struct crypto_shash *crypto_spawn_shash(
241	struct crypto_shash_spawn *spawn)
242{
243	return crypto_spawn_tfm2(&spawn->base);
244}
245
246static inline void *crypto_shash_ctx_aligned(struct crypto_shash *tfm)
247{
248	return crypto_tfm_ctx_aligned(&tfm->base);
249}
250
251static inline struct crypto_shash *__crypto_shash_cast(struct crypto_tfm *tfm)
252{
253	return container_of(tfm, struct crypto_shash, base);
254}
255
256#endif	/* _CRYPTO_INTERNAL_HASH_H */
257