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49788fe2 AB |
1 | /* |
2 | * linux/arch/arm64/crypto/aes-glue.c - wrapper code for ARMv8 AES | |
3 | * | |
4 | * Copyright (C) 2013 Linaro Ltd <ard.biesheuvel@linaro.org> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License version 2 as | |
8 | * published by the Free Software Foundation. | |
9 | */ | |
10 | ||
11 | #include <asm/neon.h> | |
12 | #include <asm/hwcap.h> | |
13 | #include <crypto/aes.h> | |
14 | #include <crypto/ablk_helper.h> | |
15 | #include <crypto/algapi.h> | |
16 | #include <linux/module.h> | |
17 | #include <linux/cpufeature.h> | |
18 | ||
19 | #ifdef USE_V8_CRYPTO_EXTENSIONS | |
20 | #define MODE "ce" | |
21 | #define PRIO 300 | |
22 | #define aes_ecb_encrypt ce_aes_ecb_encrypt | |
23 | #define aes_ecb_decrypt ce_aes_ecb_decrypt | |
24 | #define aes_cbc_encrypt ce_aes_cbc_encrypt | |
25 | #define aes_cbc_decrypt ce_aes_cbc_decrypt | |
26 | #define aes_ctr_encrypt ce_aes_ctr_encrypt | |
27 | #define aes_xts_encrypt ce_aes_xts_encrypt | |
28 | #define aes_xts_decrypt ce_aes_xts_decrypt | |
29 | MODULE_DESCRIPTION("AES-ECB/CBC/CTR/XTS using ARMv8 Crypto Extensions"); | |
30 | #else | |
31 | #define MODE "neon" | |
32 | #define PRIO 200 | |
33 | #define aes_ecb_encrypt neon_aes_ecb_encrypt | |
34 | #define aes_ecb_decrypt neon_aes_ecb_decrypt | |
35 | #define aes_cbc_encrypt neon_aes_cbc_encrypt | |
36 | #define aes_cbc_decrypt neon_aes_cbc_decrypt | |
37 | #define aes_ctr_encrypt neon_aes_ctr_encrypt | |
38 | #define aes_xts_encrypt neon_aes_xts_encrypt | |
39 | #define aes_xts_decrypt neon_aes_xts_decrypt | |
40 | MODULE_DESCRIPTION("AES-ECB/CBC/CTR/XTS using ARMv8 NEON"); | |
5d26a105 KC |
41 | MODULE_ALIAS_CRYPTO("ecb(aes)"); |
42 | MODULE_ALIAS_CRYPTO("cbc(aes)"); | |
43 | MODULE_ALIAS_CRYPTO("ctr(aes)"); | |
44 | MODULE_ALIAS_CRYPTO("xts(aes)"); | |
49788fe2 AB |
45 | #endif |
46 | ||
47 | MODULE_AUTHOR("Ard Biesheuvel <ard.biesheuvel@linaro.org>"); | |
48 | MODULE_LICENSE("GPL v2"); | |
49 | ||
50 | /* defined in aes-modes.S */ | |
51 | asmlinkage void aes_ecb_encrypt(u8 out[], u8 const in[], u8 const rk[], | |
52 | int rounds, int blocks, int first); | |
53 | asmlinkage void aes_ecb_decrypt(u8 out[], u8 const in[], u8 const rk[], | |
54 | int rounds, int blocks, int first); | |
55 | ||
56 | asmlinkage void aes_cbc_encrypt(u8 out[], u8 const in[], u8 const rk[], | |
57 | int rounds, int blocks, u8 iv[], int first); | |
58 | asmlinkage void aes_cbc_decrypt(u8 out[], u8 const in[], u8 const rk[], | |
59 | int rounds, int blocks, u8 iv[], int first); | |
60 | ||
61 | asmlinkage void aes_ctr_encrypt(u8 out[], u8 const in[], u8 const rk[], | |
62 | int rounds, int blocks, u8 ctr[], int first); | |
63 | ||
64 | asmlinkage void aes_xts_encrypt(u8 out[], u8 const in[], u8 const rk1[], | |
65 | int rounds, int blocks, u8 const rk2[], u8 iv[], | |
66 | int first); | |
67 | asmlinkage void aes_xts_decrypt(u8 out[], u8 const in[], u8 const rk1[], | |
68 | int rounds, int blocks, u8 const rk2[], u8 iv[], | |
69 | int first); | |
70 | ||
71 | struct crypto_aes_xts_ctx { | |
72 | struct crypto_aes_ctx key1; | |
73 | struct crypto_aes_ctx __aligned(8) key2; | |
74 | }; | |
75 | ||
76 | static int xts_set_key(struct crypto_tfm *tfm, const u8 *in_key, | |
77 | unsigned int key_len) | |
78 | { | |
79 | struct crypto_aes_xts_ctx *ctx = crypto_tfm_ctx(tfm); | |
80 | int ret; | |
81 | ||
82 | ret = crypto_aes_expand_key(&ctx->key1, in_key, key_len / 2); | |
83 | if (!ret) | |
84 | ret = crypto_aes_expand_key(&ctx->key2, &in_key[key_len / 2], | |
85 | key_len / 2); | |
86 | if (!ret) | |
87 | return 0; | |
88 | ||
89 | tfm->crt_flags |= CRYPTO_TFM_RES_BAD_KEY_LEN; | |
90 | return -EINVAL; | |
91 | } | |
92 | ||
93 | static int ecb_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst, | |
94 | struct scatterlist *src, unsigned int nbytes) | |
95 | { | |
96 | struct crypto_aes_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); | |
97 | int err, first, rounds = 6 + ctx->key_length / 4; | |
98 | struct blkcipher_walk walk; | |
99 | unsigned int blocks; | |
100 | ||
101 | desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP; | |
102 | blkcipher_walk_init(&walk, dst, src, nbytes); | |
103 | err = blkcipher_walk_virt(desc, &walk); | |
104 | ||
105 | kernel_neon_begin(); | |
106 | for (first = 1; (blocks = (walk.nbytes / AES_BLOCK_SIZE)); first = 0) { | |
107 | aes_ecb_encrypt(walk.dst.virt.addr, walk.src.virt.addr, | |
108 | (u8 *)ctx->key_enc, rounds, blocks, first); | |
f960d209 | 109 | err = blkcipher_walk_done(desc, &walk, walk.nbytes % AES_BLOCK_SIZE); |
49788fe2 AB |
110 | } |
111 | kernel_neon_end(); | |
112 | return err; | |
113 | } | |
114 | ||
115 | static int ecb_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst, | |
116 | struct scatterlist *src, unsigned int nbytes) | |
117 | { | |
118 | struct crypto_aes_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); | |
119 | int err, first, rounds = 6 + ctx->key_length / 4; | |
120 | struct blkcipher_walk walk; | |
121 | unsigned int blocks; | |
122 | ||
123 | desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP; | |
124 | blkcipher_walk_init(&walk, dst, src, nbytes); | |
125 | err = blkcipher_walk_virt(desc, &walk); | |
126 | ||
127 | kernel_neon_begin(); | |
128 | for (first = 1; (blocks = (walk.nbytes / AES_BLOCK_SIZE)); first = 0) { | |
129 | aes_ecb_decrypt(walk.dst.virt.addr, walk.src.virt.addr, | |
130 | (u8 *)ctx->key_dec, rounds, blocks, first); | |
f960d209 | 131 | err = blkcipher_walk_done(desc, &walk, walk.nbytes % AES_BLOCK_SIZE); |
49788fe2 AB |
132 | } |
133 | kernel_neon_end(); | |
134 | return err; | |
135 | } | |
136 | ||
137 | static int cbc_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst, | |
138 | struct scatterlist *src, unsigned int nbytes) | |
139 | { | |
140 | struct crypto_aes_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); | |
141 | int err, first, rounds = 6 + ctx->key_length / 4; | |
142 | struct blkcipher_walk walk; | |
143 | unsigned int blocks; | |
144 | ||
145 | desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP; | |
146 | blkcipher_walk_init(&walk, dst, src, nbytes); | |
147 | err = blkcipher_walk_virt(desc, &walk); | |
148 | ||
149 | kernel_neon_begin(); | |
150 | for (first = 1; (blocks = (walk.nbytes / AES_BLOCK_SIZE)); first = 0) { | |
151 | aes_cbc_encrypt(walk.dst.virt.addr, walk.src.virt.addr, | |
152 | (u8 *)ctx->key_enc, rounds, blocks, walk.iv, | |
153 | first); | |
f960d209 | 154 | err = blkcipher_walk_done(desc, &walk, walk.nbytes % AES_BLOCK_SIZE); |
49788fe2 AB |
155 | } |
156 | kernel_neon_end(); | |
157 | return err; | |
158 | } | |
159 | ||
160 | static int cbc_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst, | |
161 | struct scatterlist *src, unsigned int nbytes) | |
162 | { | |
163 | struct crypto_aes_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); | |
164 | int err, first, rounds = 6 + ctx->key_length / 4; | |
165 | struct blkcipher_walk walk; | |
166 | unsigned int blocks; | |
167 | ||
168 | desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP; | |
169 | blkcipher_walk_init(&walk, dst, src, nbytes); | |
170 | err = blkcipher_walk_virt(desc, &walk); | |
171 | ||
172 | kernel_neon_begin(); | |
173 | for (first = 1; (blocks = (walk.nbytes / AES_BLOCK_SIZE)); first = 0) { | |
174 | aes_cbc_decrypt(walk.dst.virt.addr, walk.src.virt.addr, | |
175 | (u8 *)ctx->key_dec, rounds, blocks, walk.iv, | |
176 | first); | |
f960d209 | 177 | err = blkcipher_walk_done(desc, &walk, walk.nbytes % AES_BLOCK_SIZE); |
49788fe2 AB |
178 | } |
179 | kernel_neon_end(); | |
180 | return err; | |
181 | } | |
182 | ||
183 | static int ctr_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst, | |
184 | struct scatterlist *src, unsigned int nbytes) | |
185 | { | |
186 | struct crypto_aes_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); | |
187 | int err, first, rounds = 6 + ctx->key_length / 4; | |
188 | struct blkcipher_walk walk; | |
189 | int blocks; | |
190 | ||
191 | desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP; | |
192 | blkcipher_walk_init(&walk, dst, src, nbytes); | |
193 | err = blkcipher_walk_virt_block(desc, &walk, AES_BLOCK_SIZE); | |
194 | ||
195 | first = 1; | |
196 | kernel_neon_begin(); | |
197 | while ((blocks = (walk.nbytes / AES_BLOCK_SIZE))) { | |
198 | aes_ctr_encrypt(walk.dst.virt.addr, walk.src.virt.addr, | |
199 | (u8 *)ctx->key_enc, rounds, blocks, walk.iv, | |
200 | first); | |
201 | first = 0; | |
202 | nbytes -= blocks * AES_BLOCK_SIZE; | |
203 | if (nbytes && nbytes == walk.nbytes % AES_BLOCK_SIZE) | |
204 | break; | |
205 | err = blkcipher_walk_done(desc, &walk, | |
206 | walk.nbytes % AES_BLOCK_SIZE); | |
207 | } | |
208 | if (nbytes) { | |
209 | u8 *tdst = walk.dst.virt.addr + blocks * AES_BLOCK_SIZE; | |
210 | u8 *tsrc = walk.src.virt.addr + blocks * AES_BLOCK_SIZE; | |
211 | u8 __aligned(8) tail[AES_BLOCK_SIZE]; | |
212 | ||
213 | /* | |
214 | * Minimum alignment is 8 bytes, so if nbytes is <= 8, we need | |
215 | * to tell aes_ctr_encrypt() to only read half a block. | |
216 | */ | |
217 | blocks = (nbytes <= 8) ? -1 : 1; | |
218 | ||
219 | aes_ctr_encrypt(tail, tsrc, (u8 *)ctx->key_enc, rounds, | |
220 | blocks, walk.iv, first); | |
221 | memcpy(tdst, tail, nbytes); | |
222 | err = blkcipher_walk_done(desc, &walk, 0); | |
223 | } | |
224 | kernel_neon_end(); | |
225 | ||
226 | return err; | |
227 | } | |
228 | ||
229 | static int xts_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst, | |
230 | struct scatterlist *src, unsigned int nbytes) | |
231 | { | |
232 | struct crypto_aes_xts_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); | |
233 | int err, first, rounds = 6 + ctx->key1.key_length / 4; | |
234 | struct blkcipher_walk walk; | |
235 | unsigned int blocks; | |
236 | ||
237 | desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP; | |
238 | blkcipher_walk_init(&walk, dst, src, nbytes); | |
239 | err = blkcipher_walk_virt(desc, &walk); | |
240 | ||
241 | kernel_neon_begin(); | |
242 | for (first = 1; (blocks = (walk.nbytes / AES_BLOCK_SIZE)); first = 0) { | |
243 | aes_xts_encrypt(walk.dst.virt.addr, walk.src.virt.addr, | |
244 | (u8 *)ctx->key1.key_enc, rounds, blocks, | |
245 | (u8 *)ctx->key2.key_enc, walk.iv, first); | |
f960d209 | 246 | err = blkcipher_walk_done(desc, &walk, walk.nbytes % AES_BLOCK_SIZE); |
49788fe2 AB |
247 | } |
248 | kernel_neon_end(); | |
249 | ||
250 | return err; | |
251 | } | |
252 | ||
253 | static int xts_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst, | |
254 | struct scatterlist *src, unsigned int nbytes) | |
255 | { | |
256 | struct crypto_aes_xts_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); | |
257 | int err, first, rounds = 6 + ctx->key1.key_length / 4; | |
258 | struct blkcipher_walk walk; | |
259 | unsigned int blocks; | |
260 | ||
261 | desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP; | |
262 | blkcipher_walk_init(&walk, dst, src, nbytes); | |
263 | err = blkcipher_walk_virt(desc, &walk); | |
264 | ||
265 | kernel_neon_begin(); | |
266 | for (first = 1; (blocks = (walk.nbytes / AES_BLOCK_SIZE)); first = 0) { | |
267 | aes_xts_decrypt(walk.dst.virt.addr, walk.src.virt.addr, | |
268 | (u8 *)ctx->key1.key_dec, rounds, blocks, | |
269 | (u8 *)ctx->key2.key_enc, walk.iv, first); | |
f960d209 | 270 | err = blkcipher_walk_done(desc, &walk, walk.nbytes % AES_BLOCK_SIZE); |
49788fe2 AB |
271 | } |
272 | kernel_neon_end(); | |
273 | ||
274 | return err; | |
275 | } | |
276 | ||
277 | static struct crypto_alg aes_algs[] = { { | |
278 | .cra_name = "__ecb-aes-" MODE, | |
279 | .cra_driver_name = "__driver-ecb-aes-" MODE, | |
280 | .cra_priority = 0, | |
281 | .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, | |
282 | .cra_blocksize = AES_BLOCK_SIZE, | |
283 | .cra_ctxsize = sizeof(struct crypto_aes_ctx), | |
284 | .cra_alignmask = 7, | |
285 | .cra_type = &crypto_blkcipher_type, | |
286 | .cra_module = THIS_MODULE, | |
287 | .cra_blkcipher = { | |
288 | .min_keysize = AES_MIN_KEY_SIZE, | |
289 | .max_keysize = AES_MAX_KEY_SIZE, | |
290 | .ivsize = AES_BLOCK_SIZE, | |
291 | .setkey = crypto_aes_set_key, | |
292 | .encrypt = ecb_encrypt, | |
293 | .decrypt = ecb_decrypt, | |
294 | }, | |
295 | }, { | |
296 | .cra_name = "__cbc-aes-" MODE, | |
297 | .cra_driver_name = "__driver-cbc-aes-" MODE, | |
298 | .cra_priority = 0, | |
299 | .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, | |
300 | .cra_blocksize = AES_BLOCK_SIZE, | |
301 | .cra_ctxsize = sizeof(struct crypto_aes_ctx), | |
302 | .cra_alignmask = 7, | |
303 | .cra_type = &crypto_blkcipher_type, | |
304 | .cra_module = THIS_MODULE, | |
305 | .cra_blkcipher = { | |
306 | .min_keysize = AES_MIN_KEY_SIZE, | |
307 | .max_keysize = AES_MAX_KEY_SIZE, | |
308 | .ivsize = AES_BLOCK_SIZE, | |
309 | .setkey = crypto_aes_set_key, | |
310 | .encrypt = cbc_encrypt, | |
311 | .decrypt = cbc_decrypt, | |
312 | }, | |
313 | }, { | |
314 | .cra_name = "__ctr-aes-" MODE, | |
315 | .cra_driver_name = "__driver-ctr-aes-" MODE, | |
316 | .cra_priority = 0, | |
317 | .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, | |
318 | .cra_blocksize = 1, | |
319 | .cra_ctxsize = sizeof(struct crypto_aes_ctx), | |
320 | .cra_alignmask = 7, | |
321 | .cra_type = &crypto_blkcipher_type, | |
322 | .cra_module = THIS_MODULE, | |
323 | .cra_blkcipher = { | |
324 | .min_keysize = AES_MIN_KEY_SIZE, | |
325 | .max_keysize = AES_MAX_KEY_SIZE, | |
326 | .ivsize = AES_BLOCK_SIZE, | |
327 | .setkey = crypto_aes_set_key, | |
328 | .encrypt = ctr_encrypt, | |
329 | .decrypt = ctr_encrypt, | |
330 | }, | |
331 | }, { | |
332 | .cra_name = "__xts-aes-" MODE, | |
333 | .cra_driver_name = "__driver-xts-aes-" MODE, | |
334 | .cra_priority = 0, | |
335 | .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, | |
336 | .cra_blocksize = AES_BLOCK_SIZE, | |
337 | .cra_ctxsize = sizeof(struct crypto_aes_xts_ctx), | |
338 | .cra_alignmask = 7, | |
339 | .cra_type = &crypto_blkcipher_type, | |
340 | .cra_module = THIS_MODULE, | |
341 | .cra_blkcipher = { | |
342 | .min_keysize = 2 * AES_MIN_KEY_SIZE, | |
343 | .max_keysize = 2 * AES_MAX_KEY_SIZE, | |
344 | .ivsize = AES_BLOCK_SIZE, | |
345 | .setkey = xts_set_key, | |
346 | .encrypt = xts_encrypt, | |
347 | .decrypt = xts_decrypt, | |
348 | }, | |
349 | }, { | |
350 | .cra_name = "ecb(aes)", | |
351 | .cra_driver_name = "ecb-aes-" MODE, | |
352 | .cra_priority = PRIO, | |
353 | .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC, | |
354 | .cra_blocksize = AES_BLOCK_SIZE, | |
355 | .cra_ctxsize = sizeof(struct async_helper_ctx), | |
356 | .cra_alignmask = 7, | |
357 | .cra_type = &crypto_ablkcipher_type, | |
358 | .cra_module = THIS_MODULE, | |
359 | .cra_init = ablk_init, | |
360 | .cra_exit = ablk_exit, | |
361 | .cra_ablkcipher = { | |
362 | .min_keysize = AES_MIN_KEY_SIZE, | |
363 | .max_keysize = AES_MAX_KEY_SIZE, | |
364 | .ivsize = AES_BLOCK_SIZE, | |
365 | .setkey = ablk_set_key, | |
366 | .encrypt = ablk_encrypt, | |
367 | .decrypt = ablk_decrypt, | |
368 | } | |
369 | }, { | |
370 | .cra_name = "cbc(aes)", | |
371 | .cra_driver_name = "cbc-aes-" MODE, | |
372 | .cra_priority = PRIO, | |
373 | .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC, | |
374 | .cra_blocksize = AES_BLOCK_SIZE, | |
375 | .cra_ctxsize = sizeof(struct async_helper_ctx), | |
376 | .cra_alignmask = 7, | |
377 | .cra_type = &crypto_ablkcipher_type, | |
378 | .cra_module = THIS_MODULE, | |
379 | .cra_init = ablk_init, | |
380 | .cra_exit = ablk_exit, | |
381 | .cra_ablkcipher = { | |
382 | .min_keysize = AES_MIN_KEY_SIZE, | |
383 | .max_keysize = AES_MAX_KEY_SIZE, | |
384 | .ivsize = AES_BLOCK_SIZE, | |
385 | .setkey = ablk_set_key, | |
386 | .encrypt = ablk_encrypt, | |
387 | .decrypt = ablk_decrypt, | |
388 | } | |
389 | }, { | |
390 | .cra_name = "ctr(aes)", | |
391 | .cra_driver_name = "ctr-aes-" MODE, | |
392 | .cra_priority = PRIO, | |
393 | .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC, | |
394 | .cra_blocksize = 1, | |
395 | .cra_ctxsize = sizeof(struct async_helper_ctx), | |
396 | .cra_alignmask = 7, | |
397 | .cra_type = &crypto_ablkcipher_type, | |
398 | .cra_module = THIS_MODULE, | |
399 | .cra_init = ablk_init, | |
400 | .cra_exit = ablk_exit, | |
401 | .cra_ablkcipher = { | |
402 | .min_keysize = AES_MIN_KEY_SIZE, | |
403 | .max_keysize = AES_MAX_KEY_SIZE, | |
404 | .ivsize = AES_BLOCK_SIZE, | |
405 | .setkey = ablk_set_key, | |
406 | .encrypt = ablk_encrypt, | |
407 | .decrypt = ablk_decrypt, | |
408 | } | |
409 | }, { | |
410 | .cra_name = "xts(aes)", | |
411 | .cra_driver_name = "xts-aes-" MODE, | |
412 | .cra_priority = PRIO, | |
413 | .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC, | |
414 | .cra_blocksize = AES_BLOCK_SIZE, | |
415 | .cra_ctxsize = sizeof(struct async_helper_ctx), | |
416 | .cra_alignmask = 7, | |
417 | .cra_type = &crypto_ablkcipher_type, | |
418 | .cra_module = THIS_MODULE, | |
419 | .cra_init = ablk_init, | |
420 | .cra_exit = ablk_exit, | |
421 | .cra_ablkcipher = { | |
422 | .min_keysize = 2 * AES_MIN_KEY_SIZE, | |
423 | .max_keysize = 2 * AES_MAX_KEY_SIZE, | |
424 | .ivsize = AES_BLOCK_SIZE, | |
425 | .setkey = ablk_set_key, | |
426 | .encrypt = ablk_encrypt, | |
427 | .decrypt = ablk_decrypt, | |
428 | } | |
429 | } }; | |
430 | ||
431 | static int __init aes_init(void) | |
432 | { | |
433 | return crypto_register_algs(aes_algs, ARRAY_SIZE(aes_algs)); | |
434 | } | |
435 | ||
436 | static void __exit aes_exit(void) | |
437 | { | |
438 | crypto_unregister_algs(aes_algs, ARRAY_SIZE(aes_algs)); | |
439 | } | |
440 | ||
441 | #ifdef USE_V8_CRYPTO_EXTENSIONS | |
442 | module_cpu_feature_match(AES, aes_init); | |
443 | #else | |
444 | module_init(aes_init); | |
445 | #endif | |
446 | module_exit(aes_exit); |