Herbert Xu | 2003625 | 2008-07-07 22:19:53 +0800 | [diff] [blame] | 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> |
Herbert Xu | 18e33e6 | 2008-07-10 16:01:22 +0800 | [diff] [blame] | 17 | #include <crypto/hash.h> |
Herbert Xu | 2003625 | 2008-07-07 22:19:53 +0800 | [diff] [blame] | 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 | |
Herbert Xu | 01c2dec | 2009-07-14 14:06:06 +0800 | [diff] [blame] | 37 | struct ahash_instance { |
| 38 | struct ahash_alg alg; |
| 39 | }; |
| 40 | |
Herbert Xu | 2e4fddd | 2009-07-07 15:17:12 +0800 | [diff] [blame] | 41 | struct shash_instance { |
| 42 | struct shash_alg alg; |
| 43 | }; |
| 44 | |
Herbert Xu | 01c2dec | 2009-07-14 14:06:06 +0800 | [diff] [blame] | 45 | struct crypto_ahash_spawn { |
| 46 | struct crypto_spawn base; |
| 47 | }; |
| 48 | |
Herbert Xu | 9429699 | 2009-07-08 17:21:37 +0800 | [diff] [blame] | 49 | struct crypto_shash_spawn { |
| 50 | struct crypto_spawn base; |
| 51 | }; |
| 52 | |
Herbert Xu | 18e33e6 | 2008-07-10 16:01:22 +0800 | [diff] [blame] | 53 | extern const struct crypto_type crypto_ahash_type; |
| 54 | |
Herbert Xu | 2003625 | 2008-07-07 22:19:53 +0800 | [diff] [blame] | 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); |
Herbert Xu | 5f7082e | 2008-08-31 22:21:09 +1000 | [diff] [blame] | 58 | int crypto_hash_walk_first_compat(struct hash_desc *hdesc, |
| 59 | struct crypto_hash_walk *walk, |
| 60 | struct scatterlist *sg, unsigned int len); |
Herbert Xu | 2003625 | 2008-07-07 22:19:53 +0800 | [diff] [blame] | 61 | |
Herbert Xu | 66f6ce5 | 2009-07-15 12:40:40 +0800 | [diff] [blame] | 62 | static inline int crypto_hash_walk_last(struct crypto_hash_walk *walk) |
| 63 | { |
| 64 | return !(walk->entrylen | walk->total); |
| 65 | } |
| 66 | |
Herbert Xu | 88056ec | 2009-07-14 12:28:26 +0800 | [diff] [blame] | 67 | int crypto_register_ahash(struct ahash_alg *alg); |
| 68 | int crypto_unregister_ahash(struct ahash_alg *alg); |
Herbert Xu | 01c2dec | 2009-07-14 14:06:06 +0800 | [diff] [blame] | 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 | |
Herbert Xu | 52861c7 | 2009-07-14 18:30:24 +0800 | [diff] [blame] | 77 | static inline void crypto_drop_ahash(struct crypto_ahash_spawn *spawn) |
| 78 | { |
| 79 | crypto_drop_spawn(&spawn->base); |
| 80 | } |
| 81 | |
Herbert Xu | 01c2dec | 2009-07-14 14:06:06 +0800 | [diff] [blame] | 82 | struct hash_alg_common *ahash_attr_alg(struct rtattr *rta, u32 type, u32 mask); |
Herbert Xu | 88056ec | 2009-07-14 12:28:26 +0800 | [diff] [blame] | 83 | |
Herbert Xu | 7b5a080b | 2008-08-31 15:47:27 +1000 | [diff] [blame] | 84 | int crypto_register_shash(struct shash_alg *alg); |
| 85 | int crypto_unregister_shash(struct shash_alg *alg); |
Herbert Xu | 619a6eb | 2009-07-08 18:46:23 +0800 | [diff] [blame] | 86 | int shash_register_instance(struct crypto_template *tmpl, |
| 87 | struct shash_instance *inst); |
Herbert Xu | 2e4fddd | 2009-07-07 15:17:12 +0800 | [diff] [blame] | 88 | void shash_free_instance(struct crypto_instance *inst); |
| 89 | |
Herbert Xu | 9429699 | 2009-07-08 17:21:37 +0800 | [diff] [blame] | 90 | int crypto_init_shash_spawn(struct crypto_shash_spawn *spawn, |
| 91 | struct shash_alg *alg, |
| 92 | struct crypto_instance *inst); |
| 93 | |
Herbert Xu | 52861c7 | 2009-07-14 18:30:24 +0800 | [diff] [blame] | 94 | static inline void crypto_drop_shash(struct crypto_shash_spawn *spawn) |
| 95 | { |
| 96 | crypto_drop_spawn(&spawn->base); |
| 97 | } |
| 98 | |
Herbert Xu | 7d6f564 | 2009-07-08 17:56:28 +0800 | [diff] [blame] | 99 | struct shash_alg *shash_attr_alg(struct rtattr *rta, u32 type, u32 mask); |
| 100 | |
Herbert Xu | 7eddf95 | 2009-07-12 21:25:20 +0800 | [diff] [blame] | 101 | int shash_ahash_update(struct ahash_request *req, struct shash_desc *desc); |
Herbert Xu | 66f6ce5 | 2009-07-15 12:40:40 +0800 | [diff] [blame] | 102 | int shash_ahash_finup(struct ahash_request *req, struct shash_desc *desc); |
Herbert Xu | 7eddf95 | 2009-07-12 21:25:20 +0800 | [diff] [blame] | 103 | int shash_ahash_digest(struct ahash_request *req, struct shash_desc *desc); |
| 104 | |
Herbert Xu | 88056ec | 2009-07-14 12:28:26 +0800 | [diff] [blame] | 105 | int crypto_init_shash_ops_async(struct crypto_tfm *tfm); |
| 106 | |
Herbert Xu | 18e33e6 | 2008-07-10 16:01:22 +0800 | [diff] [blame] | 107 | static inline void *crypto_ahash_ctx(struct crypto_ahash *tfm) |
| 108 | { |
Herbert Xu | 88056ec | 2009-07-14 12:28:26 +0800 | [diff] [blame] | 109 | return crypto_tfm_ctx(crypto_ahash_tfm(tfm)); |
Herbert Xu | 18e33e6 | 2008-07-10 16:01:22 +0800 | [diff] [blame] | 110 | } |
| 111 | |
Herbert Xu | 4dc10c0 | 2009-07-14 20:21:46 +0800 | [diff] [blame] | 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 | |
Herbert Xu | fc00127 | 2009-07-12 23:05:48 +0800 | [diff] [blame] | 118 | static inline void crypto_ahash_set_reqsize(struct crypto_ahash *tfm, |
| 119 | unsigned int reqsize) |
| 120 | { |
Herbert Xu | 88056ec | 2009-07-14 12:28:26 +0800 | [diff] [blame] | 121 | tfm->reqsize = reqsize; |
Herbert Xu | fc00127 | 2009-07-12 23:05:48 +0800 | [diff] [blame] | 122 | } |
| 123 | |
Herbert Xu | 01c2dec | 2009-07-14 14:06:06 +0800 | [diff] [blame] | 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 | |
Herbert Xu | 18e33e6 | 2008-07-10 16:01:22 +0800 | [diff] [blame] | 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 | |
Herbert Xu | 18e33e6 | 2008-07-10 16:01:22 +0800 | [diff] [blame] | 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 | |
Herbert Xu | 7b5a080b | 2008-08-31 15:47:27 +1000 | [diff] [blame] | 176 | static inline void *crypto_shash_ctx(struct crypto_shash *tfm) |
| 177 | { |
| 178 | return crypto_tfm_ctx(&tfm->base); |
| 179 | } |
| 180 | |
Herbert Xu | 2e4fddd | 2009-07-07 15:17:12 +0800 | [diff] [blame] | 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 | |
Herbert Xu | ef5d590 | 2009-07-09 11:32:55 +0800 | [diff] [blame] | 194 | static inline void *shash_instance_ctx(struct shash_instance *inst) |
| 195 | { |
| 196 | return crypto_instance_ctx(shash_crypto_instance(inst)); |
| 197 | } |
| 198 | |
Herbert Xu | 2e4fddd | 2009-07-07 15:17:12 +0800 | [diff] [blame] | 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 | |
Herbert Xu | 9429699 | 2009-07-08 17:21:37 +0800 | [diff] [blame] | 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 | |
Herbert Xu | cde6263 | 2009-07-08 22:32:07 +0800 | [diff] [blame] | 212 | static inline void *crypto_shash_ctx_aligned(struct crypto_shash *tfm) |
| 213 | { |
| 214 | return crypto_tfm_ctx_aligned(&tfm->base); |
| 215 | } |
| 216 | |
Herbert Xu | 0390e6a | 2009-07-08 22:36:36 +0800 | [diff] [blame] | 217 | static inline struct crypto_shash *__crypto_shash_cast(struct crypto_tfm *tfm) |
| 218 | { |
Herbert Xu | 113adef | 2009-07-14 12:50:12 +0800 | [diff] [blame] | 219 | return container_of(tfm, struct crypto_shash, base); |
Herbert Xu | 0390e6a | 2009-07-08 22:36:36 +0800 | [diff] [blame] | 220 | } |
| 221 | |
Herbert Xu | 2003625 | 2008-07-07 22:19:53 +0800 | [diff] [blame] | 222 | #endif /* _CRYPTO_INTERNAL_HASH_H */ |
| 223 | |