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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * Scatterlist Cryptographic API. | |
3 | * | |
4 | * Copyright (c) 2002 James Morris <jmorris@intercode.com.au> | |
5 | * Copyright (c) 2002 David S. Miller (davem@redhat.com) | |
5cb1454b | 6 | * Copyright (c) 2005 Herbert Xu <herbert@gondor.apana.org.au> |
1da177e4 LT |
7 | * |
8 | * Portions derived from Cryptoapi, by Alexander Kjeldaas <astor@fast.no> | |
18735dd8 | 9 | * and Nettle, by Niels Möller. |
1da177e4 LT |
10 | * |
11 | * This program is free software; you can redistribute it and/or modify it | |
12 | * under the terms of the GNU General Public License as published by the Free | |
13 | * Software Foundation; either version 2 of the License, or (at your option) | |
14 | * any later version. | |
15 | * | |
16 | */ | |
17 | #ifndef _LINUX_CRYPTO_H | |
18 | #define _LINUX_CRYPTO_H | |
19 | ||
6521f302 | 20 | #include <asm/atomic.h> |
1da177e4 LT |
21 | #include <linux/module.h> |
22 | #include <linux/kernel.h> | |
1da177e4 | 23 | #include <linux/list.h> |
79911102 | 24 | #include <linux/slab.h> |
1da177e4 | 25 | #include <linux/string.h> |
79911102 | 26 | #include <linux/uaccess.h> |
1da177e4 LT |
27 | |
28 | /* | |
29 | * Algorithm masks and types. | |
30 | */ | |
2825982d | 31 | #define CRYPTO_ALG_TYPE_MASK 0x0000000f |
1da177e4 | 32 | #define CRYPTO_ALG_TYPE_CIPHER 0x00000001 |
004a403c LH |
33 | #define CRYPTO_ALG_TYPE_COMPRESS 0x00000002 |
34 | #define CRYPTO_ALG_TYPE_AEAD 0x00000003 | |
055bcee3 | 35 | #define CRYPTO_ALG_TYPE_BLKCIPHER 0x00000004 |
332f8840 | 36 | #define CRYPTO_ALG_TYPE_ABLKCIPHER 0x00000005 |
61da88e2 | 37 | #define CRYPTO_ALG_TYPE_GIVCIPHER 0x00000006 |
004a403c | 38 | #define CRYPTO_ALG_TYPE_DIGEST 0x00000008 |
5f7082ed HX |
39 | #define CRYPTO_ALG_TYPE_HASH 0x00000008 |
40 | #define CRYPTO_ALG_TYPE_SHASH 0x00000009 | |
004a403c | 41 | #define CRYPTO_ALG_TYPE_AHASH 0x0000000a |
17f0f4a4 | 42 | #define CRYPTO_ALG_TYPE_RNG 0x0000000c |
055bcee3 HX |
43 | |
44 | #define CRYPTO_ALG_TYPE_HASH_MASK 0x0000000e | |
004a403c | 45 | #define CRYPTO_ALG_TYPE_AHASH_MASK 0x0000000c |
332f8840 | 46 | #define CRYPTO_ALG_TYPE_BLKCIPHER_MASK 0x0000000c |
1da177e4 | 47 | |
2825982d | 48 | #define CRYPTO_ALG_LARVAL 0x00000010 |
6bfd4809 HX |
49 | #define CRYPTO_ALG_DEAD 0x00000020 |
50 | #define CRYPTO_ALG_DYING 0x00000040 | |
f3f632d6 | 51 | #define CRYPTO_ALG_ASYNC 0x00000080 |
2825982d | 52 | |
6010439f HX |
53 | /* |
54 | * Set this bit if and only if the algorithm requires another algorithm of | |
55 | * the same type to handle corner cases. | |
56 | */ | |
57 | #define CRYPTO_ALG_NEED_FALLBACK 0x00000100 | |
58 | ||
ecfc4329 HX |
59 | /* |
60 | * This bit is set for symmetric key ciphers that have already been wrapped | |
61 | * with a generic IV generator to prevent them from being wrapped again. | |
62 | */ | |
63 | #define CRYPTO_ALG_GENIV 0x00000200 | |
64 | ||
73d3864a HX |
65 | /* |
66 | * Set if the algorithm has passed automated run-time testing. Note that | |
67 | * if there is no run-time testing for a given algorithm it is considered | |
68 | * to have passed. | |
69 | */ | |
70 | ||
71 | #define CRYPTO_ALG_TESTED 0x00000400 | |
72 | ||
1da177e4 LT |
73 | /* |
74 | * Transform masks and values (for crt_flags). | |
75 | */ | |
1da177e4 LT |
76 | #define CRYPTO_TFM_REQ_MASK 0x000fff00 |
77 | #define CRYPTO_TFM_RES_MASK 0xfff00000 | |
78 | ||
1da177e4 | 79 | #define CRYPTO_TFM_REQ_WEAK_KEY 0x00000100 |
64baf3cf | 80 | #define CRYPTO_TFM_REQ_MAY_SLEEP 0x00000200 |
32e3983f | 81 | #define CRYPTO_TFM_REQ_MAY_BACKLOG 0x00000400 |
1da177e4 LT |
82 | #define CRYPTO_TFM_RES_WEAK_KEY 0x00100000 |
83 | #define CRYPTO_TFM_RES_BAD_KEY_LEN 0x00200000 | |
84 | #define CRYPTO_TFM_RES_BAD_KEY_SCHED 0x00400000 | |
85 | #define CRYPTO_TFM_RES_BAD_BLOCK_LEN 0x00800000 | |
86 | #define CRYPTO_TFM_RES_BAD_FLAGS 0x01000000 | |
87 | ||
88 | /* | |
89 | * Miscellaneous stuff. | |
90 | */ | |
1da177e4 LT |
91 | #define CRYPTO_MAX_ALG_NAME 64 |
92 | ||
79911102 HX |
93 | /* |
94 | * The macro CRYPTO_MINALIGN_ATTR (along with the void * type in the actual | |
95 | * declaration) is used to ensure that the crypto_tfm context structure is | |
96 | * aligned correctly for the given architecture so that there are no alignment | |
97 | * faults for C data types. In particular, this is required on platforms such | |
98 | * as arm where pointers are 32-bit aligned but there are data types such as | |
99 | * u64 which require 64-bit alignment. | |
100 | */ | |
101 | #if defined(ARCH_KMALLOC_MINALIGN) | |
102 | #define CRYPTO_MINALIGN ARCH_KMALLOC_MINALIGN | |
103 | #elif defined(ARCH_SLAB_MINALIGN) | |
104 | #define CRYPTO_MINALIGN ARCH_SLAB_MINALIGN | |
6eb72284 HX |
105 | #else |
106 | #define CRYPTO_MINALIGN __alignof__(unsigned long long) | |
79911102 HX |
107 | #endif |
108 | ||
79911102 | 109 | #define CRYPTO_MINALIGN_ATTR __attribute__ ((__aligned__(CRYPTO_MINALIGN))) |
79911102 | 110 | |
1da177e4 | 111 | struct scatterlist; |
32e3983f HX |
112 | struct crypto_ablkcipher; |
113 | struct crypto_async_request; | |
1ae97820 | 114 | struct crypto_aead; |
5cde0af2 | 115 | struct crypto_blkcipher; |
055bcee3 | 116 | struct crypto_hash; |
004a403c | 117 | struct crypto_ahash; |
17f0f4a4 | 118 | struct crypto_rng; |
40725181 | 119 | struct crypto_tfm; |
e853c3cf | 120 | struct crypto_type; |
743edf57 | 121 | struct aead_givcrypt_request; |
61da88e2 | 122 | struct skcipher_givcrypt_request; |
40725181 | 123 | |
32e3983f HX |
124 | typedef void (*crypto_completion_t)(struct crypto_async_request *req, int err); |
125 | ||
126 | struct crypto_async_request { | |
127 | struct list_head list; | |
128 | crypto_completion_t complete; | |
129 | void *data; | |
130 | struct crypto_tfm *tfm; | |
131 | ||
132 | u32 flags; | |
133 | }; | |
134 | ||
135 | struct ablkcipher_request { | |
136 | struct crypto_async_request base; | |
137 | ||
138 | unsigned int nbytes; | |
139 | ||
140 | void *info; | |
141 | ||
142 | struct scatterlist *src; | |
143 | struct scatterlist *dst; | |
144 | ||
145 | void *__ctx[] CRYPTO_MINALIGN_ATTR; | |
146 | }; | |
147 | ||
004a403c LH |
148 | struct ahash_request { |
149 | struct crypto_async_request base; | |
150 | ||
004a403c LH |
151 | unsigned int nbytes; |
152 | struct scatterlist *src; | |
153 | u8 *result; | |
154 | ||
155 | void *__ctx[] CRYPTO_MINALIGN_ATTR; | |
156 | }; | |
157 | ||
1ae97820 HX |
158 | /** |
159 | * struct aead_request - AEAD request | |
160 | * @base: Common attributes for async crypto requests | |
161 | * @assoclen: Length in bytes of associated data for authentication | |
162 | * @cryptlen: Length of data to be encrypted or decrypted | |
163 | * @iv: Initialisation vector | |
164 | * @assoc: Associated data | |
165 | * @src: Source data | |
166 | * @dst: Destination data | |
167 | * @__ctx: Start of private context data | |
168 | */ | |
169 | struct aead_request { | |
170 | struct crypto_async_request base; | |
171 | ||
172 | unsigned int assoclen; | |
173 | unsigned int cryptlen; | |
174 | ||
175 | u8 *iv; | |
176 | ||
177 | struct scatterlist *assoc; | |
178 | struct scatterlist *src; | |
179 | struct scatterlist *dst; | |
180 | ||
181 | void *__ctx[] CRYPTO_MINALIGN_ATTR; | |
182 | }; | |
183 | ||
5cde0af2 HX |
184 | struct blkcipher_desc { |
185 | struct crypto_blkcipher *tfm; | |
186 | void *info; | |
187 | u32 flags; | |
188 | }; | |
189 | ||
40725181 HX |
190 | struct cipher_desc { |
191 | struct crypto_tfm *tfm; | |
6c2bb98b | 192 | void (*crfn)(struct crypto_tfm *tfm, u8 *dst, const u8 *src); |
40725181 HX |
193 | unsigned int (*prfn)(const struct cipher_desc *desc, u8 *dst, |
194 | const u8 *src, unsigned int nbytes); | |
195 | void *info; | |
196 | }; | |
1da177e4 | 197 | |
055bcee3 HX |
198 | struct hash_desc { |
199 | struct crypto_hash *tfm; | |
200 | u32 flags; | |
201 | }; | |
202 | ||
1da177e4 LT |
203 | /* |
204 | * Algorithms: modular crypto algorithm implementations, managed | |
205 | * via crypto_register_alg() and crypto_unregister_alg(). | |
206 | */ | |
b5b7f088 HX |
207 | struct ablkcipher_alg { |
208 | int (*setkey)(struct crypto_ablkcipher *tfm, const u8 *key, | |
209 | unsigned int keylen); | |
210 | int (*encrypt)(struct ablkcipher_request *req); | |
211 | int (*decrypt)(struct ablkcipher_request *req); | |
61da88e2 HX |
212 | int (*givencrypt)(struct skcipher_givcrypt_request *req); |
213 | int (*givdecrypt)(struct skcipher_givcrypt_request *req); | |
b5b7f088 | 214 | |
23508e11 HX |
215 | const char *geniv; |
216 | ||
b5b7f088 HX |
217 | unsigned int min_keysize; |
218 | unsigned int max_keysize; | |
219 | unsigned int ivsize; | |
220 | }; | |
221 | ||
004a403c LH |
222 | struct ahash_alg { |
223 | int (*init)(struct ahash_request *req); | |
dec8b786 | 224 | int (*reinit)(struct ahash_request *req); |
004a403c LH |
225 | int (*update)(struct ahash_request *req); |
226 | int (*final)(struct ahash_request *req); | |
227 | int (*digest)(struct ahash_request *req); | |
228 | int (*setkey)(struct crypto_ahash *tfm, const u8 *key, | |
229 | unsigned int keylen); | |
230 | ||
231 | unsigned int digestsize; | |
232 | }; | |
233 | ||
1ae97820 HX |
234 | struct aead_alg { |
235 | int (*setkey)(struct crypto_aead *tfm, const u8 *key, | |
236 | unsigned int keylen); | |
7ba683a6 | 237 | int (*setauthsize)(struct crypto_aead *tfm, unsigned int authsize); |
1ae97820 HX |
238 | int (*encrypt)(struct aead_request *req); |
239 | int (*decrypt)(struct aead_request *req); | |
743edf57 HX |
240 | int (*givencrypt)(struct aead_givcrypt_request *req); |
241 | int (*givdecrypt)(struct aead_givcrypt_request *req); | |
1ae97820 | 242 | |
5b6d2d7f HX |
243 | const char *geniv; |
244 | ||
1ae97820 | 245 | unsigned int ivsize; |
7ba683a6 | 246 | unsigned int maxauthsize; |
1ae97820 HX |
247 | }; |
248 | ||
5cde0af2 HX |
249 | struct blkcipher_alg { |
250 | int (*setkey)(struct crypto_tfm *tfm, const u8 *key, | |
251 | unsigned int keylen); | |
252 | int (*encrypt)(struct blkcipher_desc *desc, | |
253 | struct scatterlist *dst, struct scatterlist *src, | |
254 | unsigned int nbytes); | |
255 | int (*decrypt)(struct blkcipher_desc *desc, | |
256 | struct scatterlist *dst, struct scatterlist *src, | |
257 | unsigned int nbytes); | |
258 | ||
23508e11 HX |
259 | const char *geniv; |
260 | ||
5cde0af2 HX |
261 | unsigned int min_keysize; |
262 | unsigned int max_keysize; | |
263 | unsigned int ivsize; | |
264 | }; | |
265 | ||
1da177e4 LT |
266 | struct cipher_alg { |
267 | unsigned int cia_min_keysize; | |
268 | unsigned int cia_max_keysize; | |
6c2bb98b | 269 | int (*cia_setkey)(struct crypto_tfm *tfm, const u8 *key, |
560c06ae | 270 | unsigned int keylen); |
6c2bb98b HX |
271 | void (*cia_encrypt)(struct crypto_tfm *tfm, u8 *dst, const u8 *src); |
272 | void (*cia_decrypt)(struct crypto_tfm *tfm, u8 *dst, const u8 *src); | |
1da177e4 LT |
273 | }; |
274 | ||
275 | struct digest_alg { | |
276 | unsigned int dia_digestsize; | |
6c2bb98b HX |
277 | void (*dia_init)(struct crypto_tfm *tfm); |
278 | void (*dia_update)(struct crypto_tfm *tfm, const u8 *data, | |
279 | unsigned int len); | |
280 | void (*dia_final)(struct crypto_tfm *tfm, u8 *out); | |
281 | int (*dia_setkey)(struct crypto_tfm *tfm, const u8 *key, | |
560c06ae | 282 | unsigned int keylen); |
1da177e4 LT |
283 | }; |
284 | ||
055bcee3 HX |
285 | struct hash_alg { |
286 | int (*init)(struct hash_desc *desc); | |
287 | int (*update)(struct hash_desc *desc, struct scatterlist *sg, | |
288 | unsigned int nbytes); | |
289 | int (*final)(struct hash_desc *desc, u8 *out); | |
290 | int (*digest)(struct hash_desc *desc, struct scatterlist *sg, | |
291 | unsigned int nbytes, u8 *out); | |
292 | int (*setkey)(struct crypto_hash *tfm, const u8 *key, | |
293 | unsigned int keylen); | |
294 | ||
295 | unsigned int digestsize; | |
296 | }; | |
297 | ||
1da177e4 | 298 | struct compress_alg { |
6c2bb98b HX |
299 | int (*coa_compress)(struct crypto_tfm *tfm, const u8 *src, |
300 | unsigned int slen, u8 *dst, unsigned int *dlen); | |
301 | int (*coa_decompress)(struct crypto_tfm *tfm, const u8 *src, | |
302 | unsigned int slen, u8 *dst, unsigned int *dlen); | |
1da177e4 LT |
303 | }; |
304 | ||
17f0f4a4 NH |
305 | struct rng_alg { |
306 | int (*rng_make_random)(struct crypto_rng *tfm, u8 *rdata, | |
307 | unsigned int dlen); | |
308 | int (*rng_reset)(struct crypto_rng *tfm, u8 *seed, unsigned int slen); | |
309 | ||
310 | unsigned int seedsize; | |
311 | }; | |
312 | ||
313 | ||
b5b7f088 | 314 | #define cra_ablkcipher cra_u.ablkcipher |
1ae97820 | 315 | #define cra_aead cra_u.aead |
5cde0af2 | 316 | #define cra_blkcipher cra_u.blkcipher |
1da177e4 LT |
317 | #define cra_cipher cra_u.cipher |
318 | #define cra_digest cra_u.digest | |
055bcee3 | 319 | #define cra_hash cra_u.hash |
004a403c | 320 | #define cra_ahash cra_u.ahash |
1da177e4 | 321 | #define cra_compress cra_u.compress |
17f0f4a4 | 322 | #define cra_rng cra_u.rng |
1da177e4 LT |
323 | |
324 | struct crypto_alg { | |
325 | struct list_head cra_list; | |
6bfd4809 HX |
326 | struct list_head cra_users; |
327 | ||
1da177e4 LT |
328 | u32 cra_flags; |
329 | unsigned int cra_blocksize; | |
330 | unsigned int cra_ctxsize; | |
95477377 | 331 | unsigned int cra_alignmask; |
5cb1454b HX |
332 | |
333 | int cra_priority; | |
6521f302 | 334 | atomic_t cra_refcnt; |
5cb1454b | 335 | |
d913ea0d HX |
336 | char cra_name[CRYPTO_MAX_ALG_NAME]; |
337 | char cra_driver_name[CRYPTO_MAX_ALG_NAME]; | |
1da177e4 | 338 | |
e853c3cf HX |
339 | const struct crypto_type *cra_type; |
340 | ||
1da177e4 | 341 | union { |
b5b7f088 | 342 | struct ablkcipher_alg ablkcipher; |
1ae97820 | 343 | struct aead_alg aead; |
5cde0af2 | 344 | struct blkcipher_alg blkcipher; |
1da177e4 LT |
345 | struct cipher_alg cipher; |
346 | struct digest_alg digest; | |
055bcee3 | 347 | struct hash_alg hash; |
004a403c | 348 | struct ahash_alg ahash; |
1da177e4 | 349 | struct compress_alg compress; |
17f0f4a4 | 350 | struct rng_alg rng; |
1da177e4 | 351 | } cra_u; |
c7fc0599 HX |
352 | |
353 | int (*cra_init)(struct crypto_tfm *tfm); | |
354 | void (*cra_exit)(struct crypto_tfm *tfm); | |
6521f302 | 355 | void (*cra_destroy)(struct crypto_alg *alg); |
1da177e4 LT |
356 | |
357 | struct module *cra_module; | |
358 | }; | |
359 | ||
360 | /* | |
361 | * Algorithm registration interface. | |
362 | */ | |
363 | int crypto_register_alg(struct crypto_alg *alg); | |
364 | int crypto_unregister_alg(struct crypto_alg *alg); | |
365 | ||
366 | /* | |
367 | * Algorithm query interface. | |
368 | */ | |
fce32d70 | 369 | int crypto_has_alg(const char *name, u32 type, u32 mask); |
1da177e4 LT |
370 | |
371 | /* | |
372 | * Transforms: user-instantiated objects which encapsulate algorithms | |
6d7d684d HX |
373 | * and core processing logic. Managed via crypto_alloc_*() and |
374 | * crypto_free_*(), as well as the various helpers below. | |
1da177e4 | 375 | */ |
1da177e4 | 376 | |
32e3983f HX |
377 | struct ablkcipher_tfm { |
378 | int (*setkey)(struct crypto_ablkcipher *tfm, const u8 *key, | |
379 | unsigned int keylen); | |
380 | int (*encrypt)(struct ablkcipher_request *req); | |
381 | int (*decrypt)(struct ablkcipher_request *req); | |
61da88e2 HX |
382 | int (*givencrypt)(struct skcipher_givcrypt_request *req); |
383 | int (*givdecrypt)(struct skcipher_givcrypt_request *req); | |
384 | ||
ecfc4329 HX |
385 | struct crypto_ablkcipher *base; |
386 | ||
32e3983f HX |
387 | unsigned int ivsize; |
388 | unsigned int reqsize; | |
389 | }; | |
390 | ||
1ae97820 HX |
391 | struct aead_tfm { |
392 | int (*setkey)(struct crypto_aead *tfm, const u8 *key, | |
393 | unsigned int keylen); | |
394 | int (*encrypt)(struct aead_request *req); | |
395 | int (*decrypt)(struct aead_request *req); | |
743edf57 HX |
396 | int (*givencrypt)(struct aead_givcrypt_request *req); |
397 | int (*givdecrypt)(struct aead_givcrypt_request *req); | |
5b6d2d7f HX |
398 | |
399 | struct crypto_aead *base; | |
400 | ||
1ae97820 HX |
401 | unsigned int ivsize; |
402 | unsigned int authsize; | |
403 | unsigned int reqsize; | |
404 | }; | |
405 | ||
5cde0af2 HX |
406 | struct blkcipher_tfm { |
407 | void *iv; | |
408 | int (*setkey)(struct crypto_tfm *tfm, const u8 *key, | |
409 | unsigned int keylen); | |
410 | int (*encrypt)(struct blkcipher_desc *desc, struct scatterlist *dst, | |
411 | struct scatterlist *src, unsigned int nbytes); | |
412 | int (*decrypt)(struct blkcipher_desc *desc, struct scatterlist *dst, | |
413 | struct scatterlist *src, unsigned int nbytes); | |
414 | }; | |
415 | ||
1da177e4 | 416 | struct cipher_tfm { |
1da177e4 LT |
417 | int (*cit_setkey)(struct crypto_tfm *tfm, |
418 | const u8 *key, unsigned int keylen); | |
f28776a3 HX |
419 | void (*cit_encrypt_one)(struct crypto_tfm *tfm, u8 *dst, const u8 *src); |
420 | void (*cit_decrypt_one)(struct crypto_tfm *tfm, u8 *dst, const u8 *src); | |
1da177e4 LT |
421 | }; |
422 | ||
055bcee3 HX |
423 | struct hash_tfm { |
424 | int (*init)(struct hash_desc *desc); | |
425 | int (*update)(struct hash_desc *desc, | |
426 | struct scatterlist *sg, unsigned int nsg); | |
427 | int (*final)(struct hash_desc *desc, u8 *out); | |
428 | int (*digest)(struct hash_desc *desc, struct scatterlist *sg, | |
429 | unsigned int nsg, u8 *out); | |
430 | int (*setkey)(struct crypto_hash *tfm, const u8 *key, | |
431 | unsigned int keylen); | |
055bcee3 | 432 | unsigned int digestsize; |
1da177e4 LT |
433 | }; |
434 | ||
004a403c LH |
435 | struct ahash_tfm { |
436 | int (*init)(struct ahash_request *req); | |
437 | int (*update)(struct ahash_request *req); | |
438 | int (*final)(struct ahash_request *req); | |
439 | int (*digest)(struct ahash_request *req); | |
440 | int (*setkey)(struct crypto_ahash *tfm, const u8 *key, | |
441 | unsigned int keylen); | |
442 | ||
443 | unsigned int digestsize; | |
004a403c LH |
444 | unsigned int reqsize; |
445 | }; | |
446 | ||
1da177e4 LT |
447 | struct compress_tfm { |
448 | int (*cot_compress)(struct crypto_tfm *tfm, | |
449 | const u8 *src, unsigned int slen, | |
450 | u8 *dst, unsigned int *dlen); | |
451 | int (*cot_decompress)(struct crypto_tfm *tfm, | |
452 | const u8 *src, unsigned int slen, | |
453 | u8 *dst, unsigned int *dlen); | |
454 | }; | |
455 | ||
17f0f4a4 NH |
456 | struct rng_tfm { |
457 | int (*rng_gen_random)(struct crypto_rng *tfm, u8 *rdata, | |
458 | unsigned int dlen); | |
459 | int (*rng_reset)(struct crypto_rng *tfm, u8 *seed, unsigned int slen); | |
460 | }; | |
461 | ||
32e3983f | 462 | #define crt_ablkcipher crt_u.ablkcipher |
1ae97820 | 463 | #define crt_aead crt_u.aead |
5cde0af2 | 464 | #define crt_blkcipher crt_u.blkcipher |
1da177e4 | 465 | #define crt_cipher crt_u.cipher |
055bcee3 | 466 | #define crt_hash crt_u.hash |
004a403c | 467 | #define crt_ahash crt_u.ahash |
1da177e4 | 468 | #define crt_compress crt_u.compress |
17f0f4a4 | 469 | #define crt_rng crt_u.rng |
1da177e4 LT |
470 | |
471 | struct crypto_tfm { | |
472 | ||
473 | u32 crt_flags; | |
474 | ||
475 | union { | |
32e3983f | 476 | struct ablkcipher_tfm ablkcipher; |
1ae97820 | 477 | struct aead_tfm aead; |
5cde0af2 | 478 | struct blkcipher_tfm blkcipher; |
1da177e4 | 479 | struct cipher_tfm cipher; |
055bcee3 | 480 | struct hash_tfm hash; |
004a403c | 481 | struct ahash_tfm ahash; |
1da177e4 | 482 | struct compress_tfm compress; |
17f0f4a4 | 483 | struct rng_tfm rng; |
1da177e4 | 484 | } crt_u; |
4a779486 HX |
485 | |
486 | void (*exit)(struct crypto_tfm *tfm); | |
1da177e4 LT |
487 | |
488 | struct crypto_alg *__crt_alg; | |
f10b7897 | 489 | |
79911102 | 490 | void *__crt_ctx[] CRYPTO_MINALIGN_ATTR; |
1da177e4 LT |
491 | }; |
492 | ||
32e3983f HX |
493 | struct crypto_ablkcipher { |
494 | struct crypto_tfm base; | |
495 | }; | |
496 | ||
1ae97820 HX |
497 | struct crypto_aead { |
498 | struct crypto_tfm base; | |
499 | }; | |
500 | ||
5cde0af2 HX |
501 | struct crypto_blkcipher { |
502 | struct crypto_tfm base; | |
503 | }; | |
504 | ||
78a1fe4f HX |
505 | struct crypto_cipher { |
506 | struct crypto_tfm base; | |
507 | }; | |
508 | ||
509 | struct crypto_comp { | |
510 | struct crypto_tfm base; | |
511 | }; | |
512 | ||
055bcee3 HX |
513 | struct crypto_hash { |
514 | struct crypto_tfm base; | |
515 | }; | |
516 | ||
17f0f4a4 NH |
517 | struct crypto_rng { |
518 | struct crypto_tfm base; | |
519 | }; | |
520 | ||
2b8c19db HX |
521 | enum { |
522 | CRYPTOA_UNSPEC, | |
523 | CRYPTOA_ALG, | |
ebc610e5 | 524 | CRYPTOA_TYPE, |
39e1ee01 | 525 | CRYPTOA_U32, |
ebc610e5 | 526 | __CRYPTOA_MAX, |
2b8c19db HX |
527 | }; |
528 | ||
ebc610e5 HX |
529 | #define CRYPTOA_MAX (__CRYPTOA_MAX - 1) |
530 | ||
39e1ee01 HX |
531 | /* Maximum number of (rtattr) parameters for each template. */ |
532 | #define CRYPTO_MAX_ATTRS 32 | |
533 | ||
2b8c19db HX |
534 | struct crypto_attr_alg { |
535 | char name[CRYPTO_MAX_ALG_NAME]; | |
536 | }; | |
537 | ||
ebc610e5 HX |
538 | struct crypto_attr_type { |
539 | u32 type; | |
540 | u32 mask; | |
541 | }; | |
542 | ||
39e1ee01 HX |
543 | struct crypto_attr_u32 { |
544 | u32 num; | |
545 | }; | |
546 | ||
1da177e4 LT |
547 | /* |
548 | * Transform user interface. | |
549 | */ | |
550 | ||
7b0bac64 HX |
551 | struct crypto_tfm *crypto_alloc_tfm(const char *alg_name, |
552 | const struct crypto_type *frontend, | |
553 | u32 type, u32 mask); | |
6d7d684d | 554 | struct crypto_tfm *crypto_alloc_base(const char *alg_name, u32 type, u32 mask); |
1da177e4 LT |
555 | void crypto_free_tfm(struct crypto_tfm *tfm); |
556 | ||
da7f033d HX |
557 | int alg_test(const char *driver, const char *alg, u32 type, u32 mask); |
558 | ||
1da177e4 LT |
559 | /* |
560 | * Transform helpers which query the underlying algorithm. | |
561 | */ | |
562 | static inline const char *crypto_tfm_alg_name(struct crypto_tfm *tfm) | |
563 | { | |
564 | return tfm->__crt_alg->cra_name; | |
565 | } | |
566 | ||
b14cdd67 ML |
567 | static inline const char *crypto_tfm_alg_driver_name(struct crypto_tfm *tfm) |
568 | { | |
569 | return tfm->__crt_alg->cra_driver_name; | |
570 | } | |
571 | ||
572 | static inline int crypto_tfm_alg_priority(struct crypto_tfm *tfm) | |
573 | { | |
574 | return tfm->__crt_alg->cra_priority; | |
575 | } | |
576 | ||
1da177e4 LT |
577 | static inline const char *crypto_tfm_alg_modname(struct crypto_tfm *tfm) |
578 | { | |
579 | return module_name(tfm->__crt_alg->cra_module); | |
580 | } | |
581 | ||
582 | static inline u32 crypto_tfm_alg_type(struct crypto_tfm *tfm) | |
583 | { | |
584 | return tfm->__crt_alg->cra_flags & CRYPTO_ALG_TYPE_MASK; | |
585 | } | |
586 | ||
1da177e4 LT |
587 | static inline unsigned int crypto_tfm_alg_blocksize(struct crypto_tfm *tfm) |
588 | { | |
589 | return tfm->__crt_alg->cra_blocksize; | |
590 | } | |
591 | ||
fbdae9f3 HX |
592 | static inline unsigned int crypto_tfm_alg_alignmask(struct crypto_tfm *tfm) |
593 | { | |
594 | return tfm->__crt_alg->cra_alignmask; | |
595 | } | |
596 | ||
f28776a3 HX |
597 | static inline u32 crypto_tfm_get_flags(struct crypto_tfm *tfm) |
598 | { | |
599 | return tfm->crt_flags; | |
600 | } | |
601 | ||
602 | static inline void crypto_tfm_set_flags(struct crypto_tfm *tfm, u32 flags) | |
603 | { | |
604 | tfm->crt_flags |= flags; | |
605 | } | |
606 | ||
607 | static inline void crypto_tfm_clear_flags(struct crypto_tfm *tfm, u32 flags) | |
608 | { | |
609 | tfm->crt_flags &= ~flags; | |
610 | } | |
611 | ||
40725181 HX |
612 | static inline void *crypto_tfm_ctx(struct crypto_tfm *tfm) |
613 | { | |
f10b7897 HX |
614 | return tfm->__crt_ctx; |
615 | } | |
616 | ||
617 | static inline unsigned int crypto_tfm_ctx_alignment(void) | |
618 | { | |
619 | struct crypto_tfm *tfm; | |
620 | return __alignof__(tfm->__crt_ctx); | |
40725181 HX |
621 | } |
622 | ||
1da177e4 LT |
623 | /* |
624 | * API wrappers. | |
625 | */ | |
32e3983f HX |
626 | static inline struct crypto_ablkcipher *__crypto_ablkcipher_cast( |
627 | struct crypto_tfm *tfm) | |
628 | { | |
629 | return (struct crypto_ablkcipher *)tfm; | |
630 | } | |
631 | ||
378f4f51 | 632 | static inline u32 crypto_skcipher_type(u32 type) |
32e3983f | 633 | { |
ecfc4329 | 634 | type &= ~(CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_GENIV); |
32e3983f | 635 | type |= CRYPTO_ALG_TYPE_BLKCIPHER; |
378f4f51 HX |
636 | return type; |
637 | } | |
638 | ||
639 | static inline u32 crypto_skcipher_mask(u32 mask) | |
640 | { | |
ecfc4329 | 641 | mask &= ~(CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_GENIV); |
332f8840 | 642 | mask |= CRYPTO_ALG_TYPE_BLKCIPHER_MASK; |
378f4f51 HX |
643 | return mask; |
644 | } | |
32e3983f | 645 | |
b9c55aa4 HX |
646 | struct crypto_ablkcipher *crypto_alloc_ablkcipher(const char *alg_name, |
647 | u32 type, u32 mask); | |
32e3983f HX |
648 | |
649 | static inline struct crypto_tfm *crypto_ablkcipher_tfm( | |
650 | struct crypto_ablkcipher *tfm) | |
651 | { | |
652 | return &tfm->base; | |
653 | } | |
654 | ||
655 | static inline void crypto_free_ablkcipher(struct crypto_ablkcipher *tfm) | |
656 | { | |
657 | crypto_free_tfm(crypto_ablkcipher_tfm(tfm)); | |
658 | } | |
659 | ||
660 | static inline int crypto_has_ablkcipher(const char *alg_name, u32 type, | |
661 | u32 mask) | |
662 | { | |
378f4f51 HX |
663 | return crypto_has_alg(alg_name, crypto_skcipher_type(type), |
664 | crypto_skcipher_mask(mask)); | |
32e3983f HX |
665 | } |
666 | ||
667 | static inline struct ablkcipher_tfm *crypto_ablkcipher_crt( | |
668 | struct crypto_ablkcipher *tfm) | |
669 | { | |
670 | return &crypto_ablkcipher_tfm(tfm)->crt_ablkcipher; | |
671 | } | |
672 | ||
673 | static inline unsigned int crypto_ablkcipher_ivsize( | |
674 | struct crypto_ablkcipher *tfm) | |
675 | { | |
676 | return crypto_ablkcipher_crt(tfm)->ivsize; | |
677 | } | |
678 | ||
679 | static inline unsigned int crypto_ablkcipher_blocksize( | |
680 | struct crypto_ablkcipher *tfm) | |
681 | { | |
682 | return crypto_tfm_alg_blocksize(crypto_ablkcipher_tfm(tfm)); | |
683 | } | |
684 | ||
685 | static inline unsigned int crypto_ablkcipher_alignmask( | |
686 | struct crypto_ablkcipher *tfm) | |
687 | { | |
688 | return crypto_tfm_alg_alignmask(crypto_ablkcipher_tfm(tfm)); | |
689 | } | |
690 | ||
691 | static inline u32 crypto_ablkcipher_get_flags(struct crypto_ablkcipher *tfm) | |
692 | { | |
693 | return crypto_tfm_get_flags(crypto_ablkcipher_tfm(tfm)); | |
694 | } | |
695 | ||
696 | static inline void crypto_ablkcipher_set_flags(struct crypto_ablkcipher *tfm, | |
697 | u32 flags) | |
698 | { | |
699 | crypto_tfm_set_flags(crypto_ablkcipher_tfm(tfm), flags); | |
700 | } | |
701 | ||
702 | static inline void crypto_ablkcipher_clear_flags(struct crypto_ablkcipher *tfm, | |
703 | u32 flags) | |
704 | { | |
705 | crypto_tfm_clear_flags(crypto_ablkcipher_tfm(tfm), flags); | |
706 | } | |
707 | ||
708 | static inline int crypto_ablkcipher_setkey(struct crypto_ablkcipher *tfm, | |
709 | const u8 *key, unsigned int keylen) | |
710 | { | |
ecfc4329 HX |
711 | struct ablkcipher_tfm *crt = crypto_ablkcipher_crt(tfm); |
712 | ||
713 | return crt->setkey(crt->base, key, keylen); | |
32e3983f HX |
714 | } |
715 | ||
716 | static inline struct crypto_ablkcipher *crypto_ablkcipher_reqtfm( | |
717 | struct ablkcipher_request *req) | |
718 | { | |
719 | return __crypto_ablkcipher_cast(req->base.tfm); | |
720 | } | |
721 | ||
722 | static inline int crypto_ablkcipher_encrypt(struct ablkcipher_request *req) | |
723 | { | |
724 | struct ablkcipher_tfm *crt = | |
725 | crypto_ablkcipher_crt(crypto_ablkcipher_reqtfm(req)); | |
726 | return crt->encrypt(req); | |
727 | } | |
728 | ||
729 | static inline int crypto_ablkcipher_decrypt(struct ablkcipher_request *req) | |
730 | { | |
731 | struct ablkcipher_tfm *crt = | |
732 | crypto_ablkcipher_crt(crypto_ablkcipher_reqtfm(req)); | |
733 | return crt->decrypt(req); | |
734 | } | |
735 | ||
b16c3a2e HX |
736 | static inline unsigned int crypto_ablkcipher_reqsize( |
737 | struct crypto_ablkcipher *tfm) | |
32e3983f HX |
738 | { |
739 | return crypto_ablkcipher_crt(tfm)->reqsize; | |
740 | } | |
741 | ||
e196d625 HX |
742 | static inline void ablkcipher_request_set_tfm( |
743 | struct ablkcipher_request *req, struct crypto_ablkcipher *tfm) | |
744 | { | |
ecfc4329 | 745 | req->base.tfm = crypto_ablkcipher_tfm(crypto_ablkcipher_crt(tfm)->base); |
e196d625 HX |
746 | } |
747 | ||
b5b7f088 HX |
748 | static inline struct ablkcipher_request *ablkcipher_request_cast( |
749 | struct crypto_async_request *req) | |
750 | { | |
751 | return container_of(req, struct ablkcipher_request, base); | |
752 | } | |
753 | ||
32e3983f HX |
754 | static inline struct ablkcipher_request *ablkcipher_request_alloc( |
755 | struct crypto_ablkcipher *tfm, gfp_t gfp) | |
756 | { | |
757 | struct ablkcipher_request *req; | |
758 | ||
759 | req = kmalloc(sizeof(struct ablkcipher_request) + | |
760 | crypto_ablkcipher_reqsize(tfm), gfp); | |
761 | ||
762 | if (likely(req)) | |
e196d625 | 763 | ablkcipher_request_set_tfm(req, tfm); |
32e3983f HX |
764 | |
765 | return req; | |
766 | } | |
767 | ||
768 | static inline void ablkcipher_request_free(struct ablkcipher_request *req) | |
769 | { | |
770 | kfree(req); | |
771 | } | |
772 | ||
773 | static inline void ablkcipher_request_set_callback( | |
774 | struct ablkcipher_request *req, | |
775 | u32 flags, crypto_completion_t complete, void *data) | |
776 | { | |
777 | req->base.complete = complete; | |
778 | req->base.data = data; | |
779 | req->base.flags = flags; | |
780 | } | |
781 | ||
782 | static inline void ablkcipher_request_set_crypt( | |
783 | struct ablkcipher_request *req, | |
784 | struct scatterlist *src, struct scatterlist *dst, | |
785 | unsigned int nbytes, void *iv) | |
786 | { | |
787 | req->src = src; | |
788 | req->dst = dst; | |
789 | req->nbytes = nbytes; | |
790 | req->info = iv; | |
791 | } | |
792 | ||
1ae97820 HX |
793 | static inline struct crypto_aead *__crypto_aead_cast(struct crypto_tfm *tfm) |
794 | { | |
795 | return (struct crypto_aead *)tfm; | |
796 | } | |
797 | ||
d29ce988 | 798 | struct crypto_aead *crypto_alloc_aead(const char *alg_name, u32 type, u32 mask); |
1ae97820 HX |
799 | |
800 | static inline struct crypto_tfm *crypto_aead_tfm(struct crypto_aead *tfm) | |
801 | { | |
802 | return &tfm->base; | |
803 | } | |
804 | ||
805 | static inline void crypto_free_aead(struct crypto_aead *tfm) | |
806 | { | |
807 | crypto_free_tfm(crypto_aead_tfm(tfm)); | |
808 | } | |
809 | ||
810 | static inline struct aead_tfm *crypto_aead_crt(struct crypto_aead *tfm) | |
811 | { | |
812 | return &crypto_aead_tfm(tfm)->crt_aead; | |
813 | } | |
814 | ||
815 | static inline unsigned int crypto_aead_ivsize(struct crypto_aead *tfm) | |
816 | { | |
817 | return crypto_aead_crt(tfm)->ivsize; | |
818 | } | |
819 | ||
820 | static inline unsigned int crypto_aead_authsize(struct crypto_aead *tfm) | |
821 | { | |
822 | return crypto_aead_crt(tfm)->authsize; | |
823 | } | |
824 | ||
825 | static inline unsigned int crypto_aead_blocksize(struct crypto_aead *tfm) | |
826 | { | |
827 | return crypto_tfm_alg_blocksize(crypto_aead_tfm(tfm)); | |
828 | } | |
829 | ||
830 | static inline unsigned int crypto_aead_alignmask(struct crypto_aead *tfm) | |
831 | { | |
832 | return crypto_tfm_alg_alignmask(crypto_aead_tfm(tfm)); | |
833 | } | |
834 | ||
835 | static inline u32 crypto_aead_get_flags(struct crypto_aead *tfm) | |
836 | { | |
837 | return crypto_tfm_get_flags(crypto_aead_tfm(tfm)); | |
838 | } | |
839 | ||
840 | static inline void crypto_aead_set_flags(struct crypto_aead *tfm, u32 flags) | |
841 | { | |
842 | crypto_tfm_set_flags(crypto_aead_tfm(tfm), flags); | |
843 | } | |
844 | ||
845 | static inline void crypto_aead_clear_flags(struct crypto_aead *tfm, u32 flags) | |
846 | { | |
847 | crypto_tfm_clear_flags(crypto_aead_tfm(tfm), flags); | |
848 | } | |
849 | ||
850 | static inline int crypto_aead_setkey(struct crypto_aead *tfm, const u8 *key, | |
851 | unsigned int keylen) | |
852 | { | |
5b6d2d7f HX |
853 | struct aead_tfm *crt = crypto_aead_crt(tfm); |
854 | ||
855 | return crt->setkey(crt->base, key, keylen); | |
1ae97820 HX |
856 | } |
857 | ||
7ba683a6 HX |
858 | int crypto_aead_setauthsize(struct crypto_aead *tfm, unsigned int authsize); |
859 | ||
1ae97820 HX |
860 | static inline struct crypto_aead *crypto_aead_reqtfm(struct aead_request *req) |
861 | { | |
862 | return __crypto_aead_cast(req->base.tfm); | |
863 | } | |
864 | ||
865 | static inline int crypto_aead_encrypt(struct aead_request *req) | |
866 | { | |
867 | return crypto_aead_crt(crypto_aead_reqtfm(req))->encrypt(req); | |
868 | } | |
869 | ||
870 | static inline int crypto_aead_decrypt(struct aead_request *req) | |
871 | { | |
872 | return crypto_aead_crt(crypto_aead_reqtfm(req))->decrypt(req); | |
873 | } | |
874 | ||
b16c3a2e | 875 | static inline unsigned int crypto_aead_reqsize(struct crypto_aead *tfm) |
1ae97820 HX |
876 | { |
877 | return crypto_aead_crt(tfm)->reqsize; | |
878 | } | |
879 | ||
880 | static inline void aead_request_set_tfm(struct aead_request *req, | |
881 | struct crypto_aead *tfm) | |
882 | { | |
5b6d2d7f | 883 | req->base.tfm = crypto_aead_tfm(crypto_aead_crt(tfm)->base); |
1ae97820 HX |
884 | } |
885 | ||
886 | static inline struct aead_request *aead_request_alloc(struct crypto_aead *tfm, | |
887 | gfp_t gfp) | |
888 | { | |
889 | struct aead_request *req; | |
890 | ||
891 | req = kmalloc(sizeof(*req) + crypto_aead_reqsize(tfm), gfp); | |
892 | ||
893 | if (likely(req)) | |
894 | aead_request_set_tfm(req, tfm); | |
895 | ||
896 | return req; | |
897 | } | |
898 | ||
899 | static inline void aead_request_free(struct aead_request *req) | |
900 | { | |
901 | kfree(req); | |
902 | } | |
903 | ||
904 | static inline void aead_request_set_callback(struct aead_request *req, | |
905 | u32 flags, | |
906 | crypto_completion_t complete, | |
907 | void *data) | |
908 | { | |
909 | req->base.complete = complete; | |
910 | req->base.data = data; | |
911 | req->base.flags = flags; | |
912 | } | |
913 | ||
914 | static inline void aead_request_set_crypt(struct aead_request *req, | |
915 | struct scatterlist *src, | |
916 | struct scatterlist *dst, | |
917 | unsigned int cryptlen, u8 *iv) | |
918 | { | |
919 | req->src = src; | |
920 | req->dst = dst; | |
921 | req->cryptlen = cryptlen; | |
922 | req->iv = iv; | |
923 | } | |
924 | ||
925 | static inline void aead_request_set_assoc(struct aead_request *req, | |
926 | struct scatterlist *assoc, | |
927 | unsigned int assoclen) | |
928 | { | |
929 | req->assoc = assoc; | |
930 | req->assoclen = assoclen; | |
931 | } | |
932 | ||
5cde0af2 HX |
933 | static inline struct crypto_blkcipher *__crypto_blkcipher_cast( |
934 | struct crypto_tfm *tfm) | |
935 | { | |
936 | return (struct crypto_blkcipher *)tfm; | |
937 | } | |
938 | ||
939 | static inline struct crypto_blkcipher *crypto_blkcipher_cast( | |
940 | struct crypto_tfm *tfm) | |
941 | { | |
942 | BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_BLKCIPHER); | |
943 | return __crypto_blkcipher_cast(tfm); | |
944 | } | |
945 | ||
946 | static inline struct crypto_blkcipher *crypto_alloc_blkcipher( | |
947 | const char *alg_name, u32 type, u32 mask) | |
948 | { | |
332f8840 | 949 | type &= ~CRYPTO_ALG_TYPE_MASK; |
5cde0af2 | 950 | type |= CRYPTO_ALG_TYPE_BLKCIPHER; |
332f8840 | 951 | mask |= CRYPTO_ALG_TYPE_MASK; |
5cde0af2 HX |
952 | |
953 | return __crypto_blkcipher_cast(crypto_alloc_base(alg_name, type, mask)); | |
954 | } | |
955 | ||
956 | static inline struct crypto_tfm *crypto_blkcipher_tfm( | |
957 | struct crypto_blkcipher *tfm) | |
958 | { | |
959 | return &tfm->base; | |
960 | } | |
961 | ||
962 | static inline void crypto_free_blkcipher(struct crypto_blkcipher *tfm) | |
963 | { | |
964 | crypto_free_tfm(crypto_blkcipher_tfm(tfm)); | |
965 | } | |
966 | ||
fce32d70 HX |
967 | static inline int crypto_has_blkcipher(const char *alg_name, u32 type, u32 mask) |
968 | { | |
332f8840 | 969 | type &= ~CRYPTO_ALG_TYPE_MASK; |
fce32d70 | 970 | type |= CRYPTO_ALG_TYPE_BLKCIPHER; |
332f8840 | 971 | mask |= CRYPTO_ALG_TYPE_MASK; |
fce32d70 HX |
972 | |
973 | return crypto_has_alg(alg_name, type, mask); | |
974 | } | |
975 | ||
5cde0af2 HX |
976 | static inline const char *crypto_blkcipher_name(struct crypto_blkcipher *tfm) |
977 | { | |
978 | return crypto_tfm_alg_name(crypto_blkcipher_tfm(tfm)); | |
979 | } | |
980 | ||
981 | static inline struct blkcipher_tfm *crypto_blkcipher_crt( | |
982 | struct crypto_blkcipher *tfm) | |
983 | { | |
984 | return &crypto_blkcipher_tfm(tfm)->crt_blkcipher; | |
985 | } | |
986 | ||
987 | static inline struct blkcipher_alg *crypto_blkcipher_alg( | |
988 | struct crypto_blkcipher *tfm) | |
989 | { | |
990 | return &crypto_blkcipher_tfm(tfm)->__crt_alg->cra_blkcipher; | |
991 | } | |
992 | ||
993 | static inline unsigned int crypto_blkcipher_ivsize(struct crypto_blkcipher *tfm) | |
994 | { | |
995 | return crypto_blkcipher_alg(tfm)->ivsize; | |
996 | } | |
997 | ||
998 | static inline unsigned int crypto_blkcipher_blocksize( | |
999 | struct crypto_blkcipher *tfm) | |
1000 | { | |
1001 | return crypto_tfm_alg_blocksize(crypto_blkcipher_tfm(tfm)); | |
1002 | } | |
1003 | ||
1004 | static inline unsigned int crypto_blkcipher_alignmask( | |
1005 | struct crypto_blkcipher *tfm) | |
1006 | { | |
1007 | return crypto_tfm_alg_alignmask(crypto_blkcipher_tfm(tfm)); | |
1008 | } | |
1009 | ||
1010 | static inline u32 crypto_blkcipher_get_flags(struct crypto_blkcipher *tfm) | |
1011 | { | |
1012 | return crypto_tfm_get_flags(crypto_blkcipher_tfm(tfm)); | |
1013 | } | |
1014 | ||
1015 | static inline void crypto_blkcipher_set_flags(struct crypto_blkcipher *tfm, | |
1016 | u32 flags) | |
1017 | { | |
1018 | crypto_tfm_set_flags(crypto_blkcipher_tfm(tfm), flags); | |
1019 | } | |
1020 | ||
1021 | static inline void crypto_blkcipher_clear_flags(struct crypto_blkcipher *tfm, | |
1022 | u32 flags) | |
1023 | { | |
1024 | crypto_tfm_clear_flags(crypto_blkcipher_tfm(tfm), flags); | |
1025 | } | |
1026 | ||
1027 | static inline int crypto_blkcipher_setkey(struct crypto_blkcipher *tfm, | |
1028 | const u8 *key, unsigned int keylen) | |
1029 | { | |
1030 | return crypto_blkcipher_crt(tfm)->setkey(crypto_blkcipher_tfm(tfm), | |
1031 | key, keylen); | |
1032 | } | |
1033 | ||
1034 | static inline int crypto_blkcipher_encrypt(struct blkcipher_desc *desc, | |
1035 | struct scatterlist *dst, | |
1036 | struct scatterlist *src, | |
1037 | unsigned int nbytes) | |
1038 | { | |
1039 | desc->info = crypto_blkcipher_crt(desc->tfm)->iv; | |
1040 | return crypto_blkcipher_crt(desc->tfm)->encrypt(desc, dst, src, nbytes); | |
1041 | } | |
1042 | ||
1043 | static inline int crypto_blkcipher_encrypt_iv(struct blkcipher_desc *desc, | |
1044 | struct scatterlist *dst, | |
1045 | struct scatterlist *src, | |
1046 | unsigned int nbytes) | |
1047 | { | |
1048 | return crypto_blkcipher_crt(desc->tfm)->encrypt(desc, dst, src, nbytes); | |
1049 | } | |
1050 | ||
1051 | static inline int crypto_blkcipher_decrypt(struct blkcipher_desc *desc, | |
1052 | struct scatterlist *dst, | |
1053 | struct scatterlist *src, | |
1054 | unsigned int nbytes) | |
1055 | { | |
1056 | desc->info = crypto_blkcipher_crt(desc->tfm)->iv; | |
1057 | return crypto_blkcipher_crt(desc->tfm)->decrypt(desc, dst, src, nbytes); | |
1058 | } | |
1059 | ||
1060 | static inline int crypto_blkcipher_decrypt_iv(struct blkcipher_desc *desc, | |
1061 | struct scatterlist *dst, | |
1062 | struct scatterlist *src, | |
1063 | unsigned int nbytes) | |
1064 | { | |
1065 | return crypto_blkcipher_crt(desc->tfm)->decrypt(desc, dst, src, nbytes); | |
1066 | } | |
1067 | ||
1068 | static inline void crypto_blkcipher_set_iv(struct crypto_blkcipher *tfm, | |
1069 | const u8 *src, unsigned int len) | |
1070 | { | |
1071 | memcpy(crypto_blkcipher_crt(tfm)->iv, src, len); | |
1072 | } | |
1073 | ||
1074 | static inline void crypto_blkcipher_get_iv(struct crypto_blkcipher *tfm, | |
1075 | u8 *dst, unsigned int len) | |
1076 | { | |
1077 | memcpy(dst, crypto_blkcipher_crt(tfm)->iv, len); | |
1078 | } | |
1079 | ||
f28776a3 HX |
1080 | static inline struct crypto_cipher *__crypto_cipher_cast(struct crypto_tfm *tfm) |
1081 | { | |
1082 | return (struct crypto_cipher *)tfm; | |
1083 | } | |
1084 | ||
1085 | static inline struct crypto_cipher *crypto_cipher_cast(struct crypto_tfm *tfm) | |
1086 | { | |
1087 | BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER); | |
1088 | return __crypto_cipher_cast(tfm); | |
1089 | } | |
1090 | ||
1091 | static inline struct crypto_cipher *crypto_alloc_cipher(const char *alg_name, | |
1092 | u32 type, u32 mask) | |
1093 | { | |
1094 | type &= ~CRYPTO_ALG_TYPE_MASK; | |
1095 | type |= CRYPTO_ALG_TYPE_CIPHER; | |
1096 | mask |= CRYPTO_ALG_TYPE_MASK; | |
1097 | ||
1098 | return __crypto_cipher_cast(crypto_alloc_base(alg_name, type, mask)); | |
1099 | } | |
1100 | ||
1101 | static inline struct crypto_tfm *crypto_cipher_tfm(struct crypto_cipher *tfm) | |
1102 | { | |
78a1fe4f | 1103 | return &tfm->base; |
f28776a3 HX |
1104 | } |
1105 | ||
1106 | static inline void crypto_free_cipher(struct crypto_cipher *tfm) | |
1107 | { | |
1108 | crypto_free_tfm(crypto_cipher_tfm(tfm)); | |
1109 | } | |
1110 | ||
fce32d70 HX |
1111 | static inline int crypto_has_cipher(const char *alg_name, u32 type, u32 mask) |
1112 | { | |
1113 | type &= ~CRYPTO_ALG_TYPE_MASK; | |
1114 | type |= CRYPTO_ALG_TYPE_CIPHER; | |
1115 | mask |= CRYPTO_ALG_TYPE_MASK; | |
1116 | ||
1117 | return crypto_has_alg(alg_name, type, mask); | |
1118 | } | |
1119 | ||
f28776a3 HX |
1120 | static inline struct cipher_tfm *crypto_cipher_crt(struct crypto_cipher *tfm) |
1121 | { | |
1122 | return &crypto_cipher_tfm(tfm)->crt_cipher; | |
1123 | } | |
1124 | ||
1125 | static inline unsigned int crypto_cipher_blocksize(struct crypto_cipher *tfm) | |
1126 | { | |
1127 | return crypto_tfm_alg_blocksize(crypto_cipher_tfm(tfm)); | |
1128 | } | |
1129 | ||
1130 | static inline unsigned int crypto_cipher_alignmask(struct crypto_cipher *tfm) | |
1131 | { | |
1132 | return crypto_tfm_alg_alignmask(crypto_cipher_tfm(tfm)); | |
1133 | } | |
1134 | ||
1135 | static inline u32 crypto_cipher_get_flags(struct crypto_cipher *tfm) | |
1136 | { | |
1137 | return crypto_tfm_get_flags(crypto_cipher_tfm(tfm)); | |
1138 | } | |
1139 | ||
1140 | static inline void crypto_cipher_set_flags(struct crypto_cipher *tfm, | |
1141 | u32 flags) | |
1142 | { | |
1143 | crypto_tfm_set_flags(crypto_cipher_tfm(tfm), flags); | |
1144 | } | |
1145 | ||
1146 | static inline void crypto_cipher_clear_flags(struct crypto_cipher *tfm, | |
1147 | u32 flags) | |
1148 | { | |
1149 | crypto_tfm_clear_flags(crypto_cipher_tfm(tfm), flags); | |
1150 | } | |
1151 | ||
7226bc87 HX |
1152 | static inline int crypto_cipher_setkey(struct crypto_cipher *tfm, |
1153 | const u8 *key, unsigned int keylen) | |
1154 | { | |
1155 | return crypto_cipher_crt(tfm)->cit_setkey(crypto_cipher_tfm(tfm), | |
1156 | key, keylen); | |
1157 | } | |
1158 | ||
f28776a3 HX |
1159 | static inline void crypto_cipher_encrypt_one(struct crypto_cipher *tfm, |
1160 | u8 *dst, const u8 *src) | |
1161 | { | |
1162 | crypto_cipher_crt(tfm)->cit_encrypt_one(crypto_cipher_tfm(tfm), | |
1163 | dst, src); | |
1164 | } | |
1165 | ||
1166 | static inline void crypto_cipher_decrypt_one(struct crypto_cipher *tfm, | |
1167 | u8 *dst, const u8 *src) | |
1168 | { | |
1169 | crypto_cipher_crt(tfm)->cit_decrypt_one(crypto_cipher_tfm(tfm), | |
1170 | dst, src); | |
1171 | } | |
1172 | ||
055bcee3 | 1173 | static inline struct crypto_hash *__crypto_hash_cast(struct crypto_tfm *tfm) |
1da177e4 | 1174 | { |
055bcee3 | 1175 | return (struct crypto_hash *)tfm; |
1da177e4 LT |
1176 | } |
1177 | ||
055bcee3 | 1178 | static inline struct crypto_hash *crypto_hash_cast(struct crypto_tfm *tfm) |
1da177e4 | 1179 | { |
055bcee3 HX |
1180 | BUG_ON((crypto_tfm_alg_type(tfm) ^ CRYPTO_ALG_TYPE_HASH) & |
1181 | CRYPTO_ALG_TYPE_HASH_MASK); | |
1182 | return __crypto_hash_cast(tfm); | |
1da177e4 LT |
1183 | } |
1184 | ||
055bcee3 HX |
1185 | static inline struct crypto_hash *crypto_alloc_hash(const char *alg_name, |
1186 | u32 type, u32 mask) | |
1da177e4 | 1187 | { |
055bcee3 | 1188 | type &= ~CRYPTO_ALG_TYPE_MASK; |
551a09a7 | 1189 | mask &= ~CRYPTO_ALG_TYPE_MASK; |
055bcee3 HX |
1190 | type |= CRYPTO_ALG_TYPE_HASH; |
1191 | mask |= CRYPTO_ALG_TYPE_HASH_MASK; | |
1192 | ||
1193 | return __crypto_hash_cast(crypto_alloc_base(alg_name, type, mask)); | |
1da177e4 LT |
1194 | } |
1195 | ||
055bcee3 | 1196 | static inline struct crypto_tfm *crypto_hash_tfm(struct crypto_hash *tfm) |
1da177e4 | 1197 | { |
055bcee3 HX |
1198 | return &tfm->base; |
1199 | } | |
1200 | ||
1201 | static inline void crypto_free_hash(struct crypto_hash *tfm) | |
1202 | { | |
1203 | crypto_free_tfm(crypto_hash_tfm(tfm)); | |
1204 | } | |
1205 | ||
fce32d70 HX |
1206 | static inline int crypto_has_hash(const char *alg_name, u32 type, u32 mask) |
1207 | { | |
1208 | type &= ~CRYPTO_ALG_TYPE_MASK; | |
551a09a7 | 1209 | mask &= ~CRYPTO_ALG_TYPE_MASK; |
fce32d70 HX |
1210 | type |= CRYPTO_ALG_TYPE_HASH; |
1211 | mask |= CRYPTO_ALG_TYPE_HASH_MASK; | |
1212 | ||
1213 | return crypto_has_alg(alg_name, type, mask); | |
1214 | } | |
1215 | ||
055bcee3 HX |
1216 | static inline struct hash_tfm *crypto_hash_crt(struct crypto_hash *tfm) |
1217 | { | |
1218 | return &crypto_hash_tfm(tfm)->crt_hash; | |
1219 | } | |
1220 | ||
1221 | static inline unsigned int crypto_hash_blocksize(struct crypto_hash *tfm) | |
1222 | { | |
1223 | return crypto_tfm_alg_blocksize(crypto_hash_tfm(tfm)); | |
1224 | } | |
1225 | ||
1226 | static inline unsigned int crypto_hash_alignmask(struct crypto_hash *tfm) | |
1227 | { | |
1228 | return crypto_tfm_alg_alignmask(crypto_hash_tfm(tfm)); | |
1229 | } | |
1230 | ||
1231 | static inline unsigned int crypto_hash_digestsize(struct crypto_hash *tfm) | |
1232 | { | |
1233 | return crypto_hash_crt(tfm)->digestsize; | |
1234 | } | |
1235 | ||
1236 | static inline u32 crypto_hash_get_flags(struct crypto_hash *tfm) | |
1237 | { | |
1238 | return crypto_tfm_get_flags(crypto_hash_tfm(tfm)); | |
1239 | } | |
1240 | ||
1241 | static inline void crypto_hash_set_flags(struct crypto_hash *tfm, u32 flags) | |
1242 | { | |
1243 | crypto_tfm_set_flags(crypto_hash_tfm(tfm), flags); | |
1244 | } | |
1245 | ||
1246 | static inline void crypto_hash_clear_flags(struct crypto_hash *tfm, u32 flags) | |
1247 | { | |
1248 | crypto_tfm_clear_flags(crypto_hash_tfm(tfm), flags); | |
1249 | } | |
1250 | ||
1251 | static inline int crypto_hash_init(struct hash_desc *desc) | |
1252 | { | |
1253 | return crypto_hash_crt(desc->tfm)->init(desc); | |
1254 | } | |
1255 | ||
1256 | static inline int crypto_hash_update(struct hash_desc *desc, | |
1257 | struct scatterlist *sg, | |
1258 | unsigned int nbytes) | |
1259 | { | |
1260 | return crypto_hash_crt(desc->tfm)->update(desc, sg, nbytes); | |
1261 | } | |
1262 | ||
1263 | static inline int crypto_hash_final(struct hash_desc *desc, u8 *out) | |
1264 | { | |
1265 | return crypto_hash_crt(desc->tfm)->final(desc, out); | |
1266 | } | |
1267 | ||
1268 | static inline int crypto_hash_digest(struct hash_desc *desc, | |
1269 | struct scatterlist *sg, | |
1270 | unsigned int nbytes, u8 *out) | |
1271 | { | |
1272 | return crypto_hash_crt(desc->tfm)->digest(desc, sg, nbytes, out); | |
1273 | } | |
1274 | ||
1275 | static inline int crypto_hash_setkey(struct crypto_hash *hash, | |
1276 | const u8 *key, unsigned int keylen) | |
1277 | { | |
1278 | return crypto_hash_crt(hash)->setkey(hash, key, keylen); | |
1da177e4 LT |
1279 | } |
1280 | ||
fce32d70 HX |
1281 | static inline struct crypto_comp *__crypto_comp_cast(struct crypto_tfm *tfm) |
1282 | { | |
1283 | return (struct crypto_comp *)tfm; | |
1284 | } | |
1285 | ||
1286 | static inline struct crypto_comp *crypto_comp_cast(struct crypto_tfm *tfm) | |
1287 | { | |
1288 | BUG_ON((crypto_tfm_alg_type(tfm) ^ CRYPTO_ALG_TYPE_COMPRESS) & | |
1289 | CRYPTO_ALG_TYPE_MASK); | |
1290 | return __crypto_comp_cast(tfm); | |
1291 | } | |
1292 | ||
1293 | static inline struct crypto_comp *crypto_alloc_comp(const char *alg_name, | |
1294 | u32 type, u32 mask) | |
1295 | { | |
1296 | type &= ~CRYPTO_ALG_TYPE_MASK; | |
1297 | type |= CRYPTO_ALG_TYPE_COMPRESS; | |
1298 | mask |= CRYPTO_ALG_TYPE_MASK; | |
1299 | ||
1300 | return __crypto_comp_cast(crypto_alloc_base(alg_name, type, mask)); | |
1301 | } | |
1302 | ||
1303 | static inline struct crypto_tfm *crypto_comp_tfm(struct crypto_comp *tfm) | |
1304 | { | |
78a1fe4f | 1305 | return &tfm->base; |
fce32d70 HX |
1306 | } |
1307 | ||
1308 | static inline void crypto_free_comp(struct crypto_comp *tfm) | |
1309 | { | |
1310 | crypto_free_tfm(crypto_comp_tfm(tfm)); | |
1311 | } | |
1312 | ||
1313 | static inline int crypto_has_comp(const char *alg_name, u32 type, u32 mask) | |
1314 | { | |
1315 | type &= ~CRYPTO_ALG_TYPE_MASK; | |
1316 | type |= CRYPTO_ALG_TYPE_COMPRESS; | |
1317 | mask |= CRYPTO_ALG_TYPE_MASK; | |
1318 | ||
1319 | return crypto_has_alg(alg_name, type, mask); | |
1320 | } | |
1321 | ||
e4d5b79c HX |
1322 | static inline const char *crypto_comp_name(struct crypto_comp *tfm) |
1323 | { | |
1324 | return crypto_tfm_alg_name(crypto_comp_tfm(tfm)); | |
1325 | } | |
1326 | ||
fce32d70 HX |
1327 | static inline struct compress_tfm *crypto_comp_crt(struct crypto_comp *tfm) |
1328 | { | |
1329 | return &crypto_comp_tfm(tfm)->crt_compress; | |
1330 | } | |
1331 | ||
1332 | static inline int crypto_comp_compress(struct crypto_comp *tfm, | |
1da177e4 LT |
1333 | const u8 *src, unsigned int slen, |
1334 | u8 *dst, unsigned int *dlen) | |
1335 | { | |
78a1fe4f HX |
1336 | return crypto_comp_crt(tfm)->cot_compress(crypto_comp_tfm(tfm), |
1337 | src, slen, dst, dlen); | |
1da177e4 LT |
1338 | } |
1339 | ||
fce32d70 | 1340 | static inline int crypto_comp_decompress(struct crypto_comp *tfm, |
1da177e4 LT |
1341 | const u8 *src, unsigned int slen, |
1342 | u8 *dst, unsigned int *dlen) | |
1343 | { | |
78a1fe4f HX |
1344 | return crypto_comp_crt(tfm)->cot_decompress(crypto_comp_tfm(tfm), |
1345 | src, slen, dst, dlen); | |
1da177e4 LT |
1346 | } |
1347 | ||
1da177e4 LT |
1348 | #endif /* _LINUX_CRYPTO_H */ |
1349 |