Commit | Line | Data |
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54b6a1bd HY |
1 | /* |
2 | * Support for Intel AES-NI instructions. This file contains glue | |
3 | * code, the real AES implementation is in intel-aes_asm.S. | |
4 | * | |
5 | * Copyright (C) 2008, Intel Corp. | |
6 | * Author: Huang Ying <ying.huang@intel.com> | |
7 | * | |
0bd82f5f TS |
8 | * Added RFC4106 AES-GCM support for 128-bit keys under the AEAD |
9 | * interface for 64-bit kernels. | |
10 | * Authors: Adrian Hoban <adrian.hoban@intel.com> | |
11 | * Gabriele Paoloni <gabriele.paoloni@intel.com> | |
12 | * Tadeusz Struk (tadeusz.struk@intel.com) | |
13 | * Aidan O'Mahony (aidan.o.mahony@intel.com) | |
14 | * Copyright (c) 2010, Intel Corporation. | |
15 | * | |
54b6a1bd HY |
16 | * This program is free software; you can redistribute it and/or modify |
17 | * it under the terms of the GNU General Public License as published by | |
18 | * the Free Software Foundation; either version 2 of the License, or | |
19 | * (at your option) any later version. | |
20 | */ | |
21 | ||
22 | #include <linux/hardirq.h> | |
23 | #include <linux/types.h> | |
24 | #include <linux/crypto.h> | |
25 | #include <linux/err.h> | |
26 | #include <crypto/algapi.h> | |
27 | #include <crypto/aes.h> | |
28 | #include <crypto/cryptd.h> | |
12387a46 | 29 | #include <crypto/ctr.h> |
54b6a1bd HY |
30 | #include <asm/i387.h> |
31 | #include <asm/aes.h> | |
0bd82f5f TS |
32 | #include <crypto/scatterwalk.h> |
33 | #include <crypto/internal/aead.h> | |
34 | #include <linux/workqueue.h> | |
35 | #include <linux/spinlock.h> | |
54b6a1bd | 36 | |
2cf4ac8b HY |
37 | #if defined(CONFIG_CRYPTO_CTR) || defined(CONFIG_CRYPTO_CTR_MODULE) |
38 | #define HAS_CTR | |
39 | #endif | |
40 | ||
41 | #if defined(CONFIG_CRYPTO_LRW) || defined(CONFIG_CRYPTO_LRW_MODULE) | |
42 | #define HAS_LRW | |
43 | #endif | |
44 | ||
45 | #if defined(CONFIG_CRYPTO_PCBC) || defined(CONFIG_CRYPTO_PCBC_MODULE) | |
46 | #define HAS_PCBC | |
47 | #endif | |
48 | ||
49 | #if defined(CONFIG_CRYPTO_XTS) || defined(CONFIG_CRYPTO_XTS_MODULE) | |
50 | #define HAS_XTS | |
51 | #endif | |
52 | ||
54b6a1bd HY |
53 | struct async_aes_ctx { |
54 | struct cryptd_ablkcipher *cryptd_tfm; | |
55 | }; | |
56 | ||
0bd82f5f TS |
57 | /* This data is stored at the end of the crypto_tfm struct. |
58 | * It's a type of per "session" data storage location. | |
59 | * This needs to be 16 byte aligned. | |
60 | */ | |
61 | struct aesni_rfc4106_gcm_ctx { | |
62 | u8 hash_subkey[16]; | |
63 | struct crypto_aes_ctx aes_key_expanded; | |
64 | u8 nonce[4]; | |
65 | struct cryptd_aead *cryptd_tfm; | |
66 | }; | |
67 | ||
68 | struct aesni_gcm_set_hash_subkey_result { | |
69 | int err; | |
70 | struct completion completion; | |
71 | }; | |
72 | ||
73 | struct aesni_hash_subkey_req_data { | |
74 | u8 iv[16]; | |
75 | struct aesni_gcm_set_hash_subkey_result result; | |
76 | struct scatterlist sg; | |
77 | }; | |
78 | ||
79 | #define AESNI_ALIGN (16) | |
54b6a1bd | 80 | #define AES_BLOCK_MASK (~(AES_BLOCK_SIZE-1)) |
0bd82f5f | 81 | #define RFC4106_HASH_SUBKEY_SIZE 16 |
54b6a1bd HY |
82 | |
83 | asmlinkage int aesni_set_key(struct crypto_aes_ctx *ctx, const u8 *in_key, | |
84 | unsigned int key_len); | |
85 | asmlinkage void aesni_enc(struct crypto_aes_ctx *ctx, u8 *out, | |
86 | const u8 *in); | |
87 | asmlinkage void aesni_dec(struct crypto_aes_ctx *ctx, u8 *out, | |
88 | const u8 *in); | |
89 | asmlinkage void aesni_ecb_enc(struct crypto_aes_ctx *ctx, u8 *out, | |
90 | const u8 *in, unsigned int len); | |
91 | asmlinkage void aesni_ecb_dec(struct crypto_aes_ctx *ctx, u8 *out, | |
92 | const u8 *in, unsigned int len); | |
93 | asmlinkage void aesni_cbc_enc(struct crypto_aes_ctx *ctx, u8 *out, | |
94 | const u8 *in, unsigned int len, u8 *iv); | |
95 | asmlinkage void aesni_cbc_dec(struct crypto_aes_ctx *ctx, u8 *out, | |
96 | const u8 *in, unsigned int len, u8 *iv); | |
0d258efb | 97 | #ifdef CONFIG_X86_64 |
12387a46 HY |
98 | asmlinkage void aesni_ctr_enc(struct crypto_aes_ctx *ctx, u8 *out, |
99 | const u8 *in, unsigned int len, u8 *iv); | |
54b6a1bd | 100 | |
0bd82f5f TS |
101 | /* asmlinkage void aesni_gcm_enc() |
102 | * void *ctx, AES Key schedule. Starts on a 16 byte boundary. | |
103 | * u8 *out, Ciphertext output. Encrypt in-place is allowed. | |
104 | * const u8 *in, Plaintext input | |
105 | * unsigned long plaintext_len, Length of data in bytes for encryption. | |
106 | * u8 *iv, Pre-counter block j0: 4 byte salt (from Security Association) | |
107 | * concatenated with 8 byte Initialisation Vector (from IPSec ESP | |
108 | * Payload) concatenated with 0x00000001. 16-byte aligned pointer. | |
109 | * u8 *hash_subkey, the Hash sub key input. Data starts on a 16-byte boundary. | |
110 | * const u8 *aad, Additional Authentication Data (AAD) | |
111 | * unsigned long aad_len, Length of AAD in bytes. With RFC4106 this | |
112 | * is going to be 8 or 12 bytes | |
113 | * u8 *auth_tag, Authenticated Tag output. | |
114 | * unsigned long auth_tag_len), Authenticated Tag Length in bytes. | |
115 | * Valid values are 16 (most likely), 12 or 8. | |
116 | */ | |
117 | asmlinkage void aesni_gcm_enc(void *ctx, u8 *out, | |
118 | const u8 *in, unsigned long plaintext_len, u8 *iv, | |
119 | u8 *hash_subkey, const u8 *aad, unsigned long aad_len, | |
120 | u8 *auth_tag, unsigned long auth_tag_len); | |
121 | ||
122 | /* asmlinkage void aesni_gcm_dec() | |
123 | * void *ctx, AES Key schedule. Starts on a 16 byte boundary. | |
124 | * u8 *out, Plaintext output. Decrypt in-place is allowed. | |
125 | * const u8 *in, Ciphertext input | |
126 | * unsigned long ciphertext_len, Length of data in bytes for decryption. | |
127 | * u8 *iv, Pre-counter block j0: 4 byte salt (from Security Association) | |
128 | * concatenated with 8 byte Initialisation Vector (from IPSec ESP | |
129 | * Payload) concatenated with 0x00000001. 16-byte aligned pointer. | |
130 | * u8 *hash_subkey, the Hash sub key input. Data starts on a 16-byte boundary. | |
131 | * const u8 *aad, Additional Authentication Data (AAD) | |
132 | * unsigned long aad_len, Length of AAD in bytes. With RFC4106 this is going | |
133 | * to be 8 or 12 bytes | |
134 | * u8 *auth_tag, Authenticated Tag output. | |
135 | * unsigned long auth_tag_len) Authenticated Tag Length in bytes. | |
136 | * Valid values are 16 (most likely), 12 or 8. | |
137 | */ | |
138 | asmlinkage void aesni_gcm_dec(void *ctx, u8 *out, | |
139 | const u8 *in, unsigned long ciphertext_len, u8 *iv, | |
140 | u8 *hash_subkey, const u8 *aad, unsigned long aad_len, | |
141 | u8 *auth_tag, unsigned long auth_tag_len); | |
142 | ||
b23b6451 AL |
143 | int crypto_fpu_init(void); |
144 | void crypto_fpu_exit(void); | |
145 | ||
0bd82f5f TS |
146 | static inline struct |
147 | aesni_rfc4106_gcm_ctx *aesni_rfc4106_gcm_ctx_get(struct crypto_aead *tfm) | |
148 | { | |
149 | return | |
150 | (struct aesni_rfc4106_gcm_ctx *) | |
151 | PTR_ALIGN((u8 *) | |
152 | crypto_tfm_ctx(crypto_aead_tfm(tfm)), AESNI_ALIGN); | |
153 | } | |
559ad0ff | 154 | #endif |
0bd82f5f | 155 | |
54b6a1bd HY |
156 | static inline struct crypto_aes_ctx *aes_ctx(void *raw_ctx) |
157 | { | |
158 | unsigned long addr = (unsigned long)raw_ctx; | |
159 | unsigned long align = AESNI_ALIGN; | |
160 | ||
161 | if (align <= crypto_tfm_ctx_alignment()) | |
162 | align = 1; | |
163 | return (struct crypto_aes_ctx *)ALIGN(addr, align); | |
164 | } | |
165 | ||
166 | static int aes_set_key_common(struct crypto_tfm *tfm, void *raw_ctx, | |
167 | const u8 *in_key, unsigned int key_len) | |
168 | { | |
169 | struct crypto_aes_ctx *ctx = aes_ctx(raw_ctx); | |
170 | u32 *flags = &tfm->crt_flags; | |
171 | int err; | |
172 | ||
173 | if (key_len != AES_KEYSIZE_128 && key_len != AES_KEYSIZE_192 && | |
174 | key_len != AES_KEYSIZE_256) { | |
175 | *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN; | |
176 | return -EINVAL; | |
177 | } | |
178 | ||
13b79b97 | 179 | if (!irq_fpu_usable()) |
54b6a1bd HY |
180 | err = crypto_aes_expand_key(ctx, in_key, key_len); |
181 | else { | |
182 | kernel_fpu_begin(); | |
183 | err = aesni_set_key(ctx, in_key, key_len); | |
184 | kernel_fpu_end(); | |
185 | } | |
186 | ||
187 | return err; | |
188 | } | |
189 | ||
190 | static int aes_set_key(struct crypto_tfm *tfm, const u8 *in_key, | |
191 | unsigned int key_len) | |
192 | { | |
193 | return aes_set_key_common(tfm, crypto_tfm_ctx(tfm), in_key, key_len); | |
194 | } | |
195 | ||
196 | static void aes_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) | |
197 | { | |
198 | struct crypto_aes_ctx *ctx = aes_ctx(crypto_tfm_ctx(tfm)); | |
199 | ||
13b79b97 | 200 | if (!irq_fpu_usable()) |
54b6a1bd HY |
201 | crypto_aes_encrypt_x86(ctx, dst, src); |
202 | else { | |
203 | kernel_fpu_begin(); | |
204 | aesni_enc(ctx, dst, src); | |
205 | kernel_fpu_end(); | |
206 | } | |
207 | } | |
208 | ||
209 | static void aes_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) | |
210 | { | |
211 | struct crypto_aes_ctx *ctx = aes_ctx(crypto_tfm_ctx(tfm)); | |
212 | ||
13b79b97 | 213 | if (!irq_fpu_usable()) |
54b6a1bd HY |
214 | crypto_aes_decrypt_x86(ctx, dst, src); |
215 | else { | |
216 | kernel_fpu_begin(); | |
217 | aesni_dec(ctx, dst, src); | |
218 | kernel_fpu_end(); | |
219 | } | |
220 | } | |
221 | ||
222 | static struct crypto_alg aesni_alg = { | |
223 | .cra_name = "aes", | |
224 | .cra_driver_name = "aes-aesni", | |
225 | .cra_priority = 300, | |
226 | .cra_flags = CRYPTO_ALG_TYPE_CIPHER, | |
227 | .cra_blocksize = AES_BLOCK_SIZE, | |
228 | .cra_ctxsize = sizeof(struct crypto_aes_ctx)+AESNI_ALIGN-1, | |
229 | .cra_alignmask = 0, | |
230 | .cra_module = THIS_MODULE, | |
231 | .cra_list = LIST_HEAD_INIT(aesni_alg.cra_list), | |
232 | .cra_u = { | |
233 | .cipher = { | |
234 | .cia_min_keysize = AES_MIN_KEY_SIZE, | |
235 | .cia_max_keysize = AES_MAX_KEY_SIZE, | |
236 | .cia_setkey = aes_set_key, | |
237 | .cia_encrypt = aes_encrypt, | |
238 | .cia_decrypt = aes_decrypt | |
239 | } | |
240 | } | |
241 | }; | |
242 | ||
2cf4ac8b HY |
243 | static void __aes_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) |
244 | { | |
245 | struct crypto_aes_ctx *ctx = aes_ctx(crypto_tfm_ctx(tfm)); | |
246 | ||
247 | aesni_enc(ctx, dst, src); | |
248 | } | |
249 | ||
250 | static void __aes_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) | |
251 | { | |
252 | struct crypto_aes_ctx *ctx = aes_ctx(crypto_tfm_ctx(tfm)); | |
253 | ||
254 | aesni_dec(ctx, dst, src); | |
255 | } | |
256 | ||
257 | static struct crypto_alg __aesni_alg = { | |
258 | .cra_name = "__aes-aesni", | |
259 | .cra_driver_name = "__driver-aes-aesni", | |
260 | .cra_priority = 0, | |
261 | .cra_flags = CRYPTO_ALG_TYPE_CIPHER, | |
262 | .cra_blocksize = AES_BLOCK_SIZE, | |
263 | .cra_ctxsize = sizeof(struct crypto_aes_ctx)+AESNI_ALIGN-1, | |
264 | .cra_alignmask = 0, | |
265 | .cra_module = THIS_MODULE, | |
266 | .cra_list = LIST_HEAD_INIT(__aesni_alg.cra_list), | |
267 | .cra_u = { | |
268 | .cipher = { | |
269 | .cia_min_keysize = AES_MIN_KEY_SIZE, | |
270 | .cia_max_keysize = AES_MAX_KEY_SIZE, | |
271 | .cia_setkey = aes_set_key, | |
272 | .cia_encrypt = __aes_encrypt, | |
273 | .cia_decrypt = __aes_decrypt | |
274 | } | |
275 | } | |
276 | }; | |
277 | ||
54b6a1bd HY |
278 | static int ecb_encrypt(struct blkcipher_desc *desc, |
279 | struct scatterlist *dst, struct scatterlist *src, | |
280 | unsigned int nbytes) | |
281 | { | |
282 | struct crypto_aes_ctx *ctx = aes_ctx(crypto_blkcipher_ctx(desc->tfm)); | |
283 | struct blkcipher_walk walk; | |
284 | int err; | |
285 | ||
286 | blkcipher_walk_init(&walk, dst, src, nbytes); | |
287 | err = blkcipher_walk_virt(desc, &walk); | |
9251b64f | 288 | desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP; |
54b6a1bd HY |
289 | |
290 | kernel_fpu_begin(); | |
291 | while ((nbytes = walk.nbytes)) { | |
292 | aesni_ecb_enc(ctx, walk.dst.virt.addr, walk.src.virt.addr, | |
293 | nbytes & AES_BLOCK_MASK); | |
294 | nbytes &= AES_BLOCK_SIZE - 1; | |
295 | err = blkcipher_walk_done(desc, &walk, nbytes); | |
296 | } | |
297 | kernel_fpu_end(); | |
298 | ||
299 | return err; | |
300 | } | |
301 | ||
302 | static int ecb_decrypt(struct blkcipher_desc *desc, | |
303 | struct scatterlist *dst, struct scatterlist *src, | |
304 | unsigned int nbytes) | |
305 | { | |
306 | struct crypto_aes_ctx *ctx = aes_ctx(crypto_blkcipher_ctx(desc->tfm)); | |
307 | struct blkcipher_walk walk; | |
308 | int err; | |
309 | ||
310 | blkcipher_walk_init(&walk, dst, src, nbytes); | |
311 | err = blkcipher_walk_virt(desc, &walk); | |
9251b64f | 312 | desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP; |
54b6a1bd HY |
313 | |
314 | kernel_fpu_begin(); | |
315 | while ((nbytes = walk.nbytes)) { | |
316 | aesni_ecb_dec(ctx, walk.dst.virt.addr, walk.src.virt.addr, | |
317 | nbytes & AES_BLOCK_MASK); | |
318 | nbytes &= AES_BLOCK_SIZE - 1; | |
319 | err = blkcipher_walk_done(desc, &walk, nbytes); | |
320 | } | |
321 | kernel_fpu_end(); | |
322 | ||
323 | return err; | |
324 | } | |
325 | ||
326 | static struct crypto_alg blk_ecb_alg = { | |
327 | .cra_name = "__ecb-aes-aesni", | |
328 | .cra_driver_name = "__driver-ecb-aes-aesni", | |
329 | .cra_priority = 0, | |
330 | .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, | |
331 | .cra_blocksize = AES_BLOCK_SIZE, | |
332 | .cra_ctxsize = sizeof(struct crypto_aes_ctx)+AESNI_ALIGN-1, | |
333 | .cra_alignmask = 0, | |
334 | .cra_type = &crypto_blkcipher_type, | |
335 | .cra_module = THIS_MODULE, | |
336 | .cra_list = LIST_HEAD_INIT(blk_ecb_alg.cra_list), | |
337 | .cra_u = { | |
338 | .blkcipher = { | |
339 | .min_keysize = AES_MIN_KEY_SIZE, | |
340 | .max_keysize = AES_MAX_KEY_SIZE, | |
341 | .setkey = aes_set_key, | |
342 | .encrypt = ecb_encrypt, | |
343 | .decrypt = ecb_decrypt, | |
344 | }, | |
345 | }, | |
346 | }; | |
347 | ||
348 | static int cbc_encrypt(struct blkcipher_desc *desc, | |
349 | struct scatterlist *dst, struct scatterlist *src, | |
350 | unsigned int nbytes) | |
351 | { | |
352 | struct crypto_aes_ctx *ctx = aes_ctx(crypto_blkcipher_ctx(desc->tfm)); | |
353 | struct blkcipher_walk walk; | |
354 | int err; | |
355 | ||
356 | blkcipher_walk_init(&walk, dst, src, nbytes); | |
357 | err = blkcipher_walk_virt(desc, &walk); | |
9251b64f | 358 | desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP; |
54b6a1bd HY |
359 | |
360 | kernel_fpu_begin(); | |
361 | while ((nbytes = walk.nbytes)) { | |
362 | aesni_cbc_enc(ctx, walk.dst.virt.addr, walk.src.virt.addr, | |
363 | nbytes & AES_BLOCK_MASK, walk.iv); | |
364 | nbytes &= AES_BLOCK_SIZE - 1; | |
365 | err = blkcipher_walk_done(desc, &walk, nbytes); | |
366 | } | |
367 | kernel_fpu_end(); | |
368 | ||
369 | return err; | |
370 | } | |
371 | ||
372 | static int cbc_decrypt(struct blkcipher_desc *desc, | |
373 | struct scatterlist *dst, struct scatterlist *src, | |
374 | unsigned int nbytes) | |
375 | { | |
376 | struct crypto_aes_ctx *ctx = aes_ctx(crypto_blkcipher_ctx(desc->tfm)); | |
377 | struct blkcipher_walk walk; | |
378 | int err; | |
379 | ||
380 | blkcipher_walk_init(&walk, dst, src, nbytes); | |
381 | err = blkcipher_walk_virt(desc, &walk); | |
9251b64f | 382 | desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP; |
54b6a1bd HY |
383 | |
384 | kernel_fpu_begin(); | |
385 | while ((nbytes = walk.nbytes)) { | |
386 | aesni_cbc_dec(ctx, walk.dst.virt.addr, walk.src.virt.addr, | |
387 | nbytes & AES_BLOCK_MASK, walk.iv); | |
388 | nbytes &= AES_BLOCK_SIZE - 1; | |
389 | err = blkcipher_walk_done(desc, &walk, nbytes); | |
390 | } | |
391 | kernel_fpu_end(); | |
392 | ||
393 | return err; | |
394 | } | |
395 | ||
396 | static struct crypto_alg blk_cbc_alg = { | |
397 | .cra_name = "__cbc-aes-aesni", | |
398 | .cra_driver_name = "__driver-cbc-aes-aesni", | |
399 | .cra_priority = 0, | |
400 | .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, | |
401 | .cra_blocksize = AES_BLOCK_SIZE, | |
402 | .cra_ctxsize = sizeof(struct crypto_aes_ctx)+AESNI_ALIGN-1, | |
403 | .cra_alignmask = 0, | |
404 | .cra_type = &crypto_blkcipher_type, | |
405 | .cra_module = THIS_MODULE, | |
406 | .cra_list = LIST_HEAD_INIT(blk_cbc_alg.cra_list), | |
407 | .cra_u = { | |
408 | .blkcipher = { | |
409 | .min_keysize = AES_MIN_KEY_SIZE, | |
410 | .max_keysize = AES_MAX_KEY_SIZE, | |
411 | .setkey = aes_set_key, | |
412 | .encrypt = cbc_encrypt, | |
413 | .decrypt = cbc_decrypt, | |
414 | }, | |
415 | }, | |
416 | }; | |
417 | ||
0d258efb | 418 | #ifdef CONFIG_X86_64 |
12387a46 HY |
419 | static void ctr_crypt_final(struct crypto_aes_ctx *ctx, |
420 | struct blkcipher_walk *walk) | |
421 | { | |
422 | u8 *ctrblk = walk->iv; | |
423 | u8 keystream[AES_BLOCK_SIZE]; | |
424 | u8 *src = walk->src.virt.addr; | |
425 | u8 *dst = walk->dst.virt.addr; | |
426 | unsigned int nbytes = walk->nbytes; | |
427 | ||
428 | aesni_enc(ctx, keystream, ctrblk); | |
429 | crypto_xor(keystream, src, nbytes); | |
430 | memcpy(dst, keystream, nbytes); | |
431 | crypto_inc(ctrblk, AES_BLOCK_SIZE); | |
432 | } | |
433 | ||
434 | static int ctr_crypt(struct blkcipher_desc *desc, | |
435 | struct scatterlist *dst, struct scatterlist *src, | |
436 | unsigned int nbytes) | |
437 | { | |
438 | struct crypto_aes_ctx *ctx = aes_ctx(crypto_blkcipher_ctx(desc->tfm)); | |
439 | struct blkcipher_walk walk; | |
440 | int err; | |
441 | ||
442 | blkcipher_walk_init(&walk, dst, src, nbytes); | |
443 | err = blkcipher_walk_virt_block(desc, &walk, AES_BLOCK_SIZE); | |
444 | desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP; | |
445 | ||
446 | kernel_fpu_begin(); | |
447 | while ((nbytes = walk.nbytes) >= AES_BLOCK_SIZE) { | |
448 | aesni_ctr_enc(ctx, walk.dst.virt.addr, walk.src.virt.addr, | |
449 | nbytes & AES_BLOCK_MASK, walk.iv); | |
450 | nbytes &= AES_BLOCK_SIZE - 1; | |
451 | err = blkcipher_walk_done(desc, &walk, nbytes); | |
452 | } | |
453 | if (walk.nbytes) { | |
454 | ctr_crypt_final(ctx, &walk); | |
455 | err = blkcipher_walk_done(desc, &walk, 0); | |
456 | } | |
457 | kernel_fpu_end(); | |
458 | ||
459 | return err; | |
460 | } | |
461 | ||
462 | static struct crypto_alg blk_ctr_alg = { | |
463 | .cra_name = "__ctr-aes-aesni", | |
464 | .cra_driver_name = "__driver-ctr-aes-aesni", | |
465 | .cra_priority = 0, | |
466 | .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, | |
467 | .cra_blocksize = 1, | |
468 | .cra_ctxsize = sizeof(struct crypto_aes_ctx)+AESNI_ALIGN-1, | |
469 | .cra_alignmask = 0, | |
470 | .cra_type = &crypto_blkcipher_type, | |
471 | .cra_module = THIS_MODULE, | |
472 | .cra_list = LIST_HEAD_INIT(blk_ctr_alg.cra_list), | |
473 | .cra_u = { | |
474 | .blkcipher = { | |
475 | .min_keysize = AES_MIN_KEY_SIZE, | |
476 | .max_keysize = AES_MAX_KEY_SIZE, | |
477 | .ivsize = AES_BLOCK_SIZE, | |
478 | .setkey = aes_set_key, | |
479 | .encrypt = ctr_crypt, | |
480 | .decrypt = ctr_crypt, | |
481 | }, | |
482 | }, | |
483 | }; | |
0d258efb | 484 | #endif |
12387a46 | 485 | |
54b6a1bd HY |
486 | static int ablk_set_key(struct crypto_ablkcipher *tfm, const u8 *key, |
487 | unsigned int key_len) | |
488 | { | |
489 | struct async_aes_ctx *ctx = crypto_ablkcipher_ctx(tfm); | |
2cf4ac8b HY |
490 | struct crypto_ablkcipher *child = &ctx->cryptd_tfm->base; |
491 | int err; | |
54b6a1bd | 492 | |
2cf4ac8b HY |
493 | crypto_ablkcipher_clear_flags(child, CRYPTO_TFM_REQ_MASK); |
494 | crypto_ablkcipher_set_flags(child, crypto_ablkcipher_get_flags(tfm) | |
495 | & CRYPTO_TFM_REQ_MASK); | |
496 | err = crypto_ablkcipher_setkey(child, key, key_len); | |
497 | crypto_ablkcipher_set_flags(tfm, crypto_ablkcipher_get_flags(child) | |
498 | & CRYPTO_TFM_RES_MASK); | |
499 | return err; | |
54b6a1bd HY |
500 | } |
501 | ||
502 | static int ablk_encrypt(struct ablkcipher_request *req) | |
503 | { | |
504 | struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req); | |
505 | struct async_aes_ctx *ctx = crypto_ablkcipher_ctx(tfm); | |
506 | ||
13b79b97 | 507 | if (!irq_fpu_usable()) { |
54b6a1bd HY |
508 | struct ablkcipher_request *cryptd_req = |
509 | ablkcipher_request_ctx(req); | |
510 | memcpy(cryptd_req, req, sizeof(*req)); | |
511 | ablkcipher_request_set_tfm(cryptd_req, &ctx->cryptd_tfm->base); | |
512 | return crypto_ablkcipher_encrypt(cryptd_req); | |
513 | } else { | |
514 | struct blkcipher_desc desc; | |
515 | desc.tfm = cryptd_ablkcipher_child(ctx->cryptd_tfm); | |
516 | desc.info = req->info; | |
517 | desc.flags = 0; | |
518 | return crypto_blkcipher_crt(desc.tfm)->encrypt( | |
519 | &desc, req->dst, req->src, req->nbytes); | |
520 | } | |
521 | } | |
522 | ||
523 | static int ablk_decrypt(struct ablkcipher_request *req) | |
524 | { | |
525 | struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req); | |
526 | struct async_aes_ctx *ctx = crypto_ablkcipher_ctx(tfm); | |
527 | ||
13b79b97 | 528 | if (!irq_fpu_usable()) { |
54b6a1bd HY |
529 | struct ablkcipher_request *cryptd_req = |
530 | ablkcipher_request_ctx(req); | |
531 | memcpy(cryptd_req, req, sizeof(*req)); | |
532 | ablkcipher_request_set_tfm(cryptd_req, &ctx->cryptd_tfm->base); | |
533 | return crypto_ablkcipher_decrypt(cryptd_req); | |
534 | } else { | |
535 | struct blkcipher_desc desc; | |
536 | desc.tfm = cryptd_ablkcipher_child(ctx->cryptd_tfm); | |
537 | desc.info = req->info; | |
538 | desc.flags = 0; | |
539 | return crypto_blkcipher_crt(desc.tfm)->decrypt( | |
540 | &desc, req->dst, req->src, req->nbytes); | |
541 | } | |
542 | } | |
543 | ||
544 | static void ablk_exit(struct crypto_tfm *tfm) | |
545 | { | |
546 | struct async_aes_ctx *ctx = crypto_tfm_ctx(tfm); | |
547 | ||
548 | cryptd_free_ablkcipher(ctx->cryptd_tfm); | |
549 | } | |
550 | ||
551 | static void ablk_init_common(struct crypto_tfm *tfm, | |
552 | struct cryptd_ablkcipher *cryptd_tfm) | |
553 | { | |
554 | struct async_aes_ctx *ctx = crypto_tfm_ctx(tfm); | |
555 | ||
556 | ctx->cryptd_tfm = cryptd_tfm; | |
557 | tfm->crt_ablkcipher.reqsize = sizeof(struct ablkcipher_request) + | |
558 | crypto_ablkcipher_reqsize(&cryptd_tfm->base); | |
559 | } | |
560 | ||
561 | static int ablk_ecb_init(struct crypto_tfm *tfm) | |
562 | { | |
563 | struct cryptd_ablkcipher *cryptd_tfm; | |
564 | ||
565 | cryptd_tfm = cryptd_alloc_ablkcipher("__driver-ecb-aes-aesni", 0, 0); | |
566 | if (IS_ERR(cryptd_tfm)) | |
567 | return PTR_ERR(cryptd_tfm); | |
568 | ablk_init_common(tfm, cryptd_tfm); | |
569 | return 0; | |
570 | } | |
571 | ||
572 | static struct crypto_alg ablk_ecb_alg = { | |
573 | .cra_name = "ecb(aes)", | |
574 | .cra_driver_name = "ecb-aes-aesni", | |
575 | .cra_priority = 400, | |
576 | .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC, | |
577 | .cra_blocksize = AES_BLOCK_SIZE, | |
578 | .cra_ctxsize = sizeof(struct async_aes_ctx), | |
579 | .cra_alignmask = 0, | |
580 | .cra_type = &crypto_ablkcipher_type, | |
581 | .cra_module = THIS_MODULE, | |
582 | .cra_list = LIST_HEAD_INIT(ablk_ecb_alg.cra_list), | |
583 | .cra_init = ablk_ecb_init, | |
584 | .cra_exit = ablk_exit, | |
585 | .cra_u = { | |
586 | .ablkcipher = { | |
587 | .min_keysize = AES_MIN_KEY_SIZE, | |
588 | .max_keysize = AES_MAX_KEY_SIZE, | |
589 | .setkey = ablk_set_key, | |
590 | .encrypt = ablk_encrypt, | |
591 | .decrypt = ablk_decrypt, | |
592 | }, | |
593 | }, | |
594 | }; | |
595 | ||
596 | static int ablk_cbc_init(struct crypto_tfm *tfm) | |
597 | { | |
598 | struct cryptd_ablkcipher *cryptd_tfm; | |
599 | ||
600 | cryptd_tfm = cryptd_alloc_ablkcipher("__driver-cbc-aes-aesni", 0, 0); | |
601 | if (IS_ERR(cryptd_tfm)) | |
602 | return PTR_ERR(cryptd_tfm); | |
603 | ablk_init_common(tfm, cryptd_tfm); | |
604 | return 0; | |
605 | } | |
606 | ||
607 | static struct crypto_alg ablk_cbc_alg = { | |
608 | .cra_name = "cbc(aes)", | |
609 | .cra_driver_name = "cbc-aes-aesni", | |
610 | .cra_priority = 400, | |
611 | .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC, | |
612 | .cra_blocksize = AES_BLOCK_SIZE, | |
613 | .cra_ctxsize = sizeof(struct async_aes_ctx), | |
614 | .cra_alignmask = 0, | |
615 | .cra_type = &crypto_ablkcipher_type, | |
616 | .cra_module = THIS_MODULE, | |
617 | .cra_list = LIST_HEAD_INIT(ablk_cbc_alg.cra_list), | |
618 | .cra_init = ablk_cbc_init, | |
619 | .cra_exit = ablk_exit, | |
620 | .cra_u = { | |
621 | .ablkcipher = { | |
622 | .min_keysize = AES_MIN_KEY_SIZE, | |
623 | .max_keysize = AES_MAX_KEY_SIZE, | |
624 | .ivsize = AES_BLOCK_SIZE, | |
625 | .setkey = ablk_set_key, | |
626 | .encrypt = ablk_encrypt, | |
627 | .decrypt = ablk_decrypt, | |
628 | }, | |
629 | }, | |
630 | }; | |
631 | ||
0d258efb | 632 | #ifdef CONFIG_X86_64 |
2cf4ac8b HY |
633 | static int ablk_ctr_init(struct crypto_tfm *tfm) |
634 | { | |
635 | struct cryptd_ablkcipher *cryptd_tfm; | |
636 | ||
12387a46 | 637 | cryptd_tfm = cryptd_alloc_ablkcipher("__driver-ctr-aes-aesni", 0, 0); |
2cf4ac8b HY |
638 | if (IS_ERR(cryptd_tfm)) |
639 | return PTR_ERR(cryptd_tfm); | |
640 | ablk_init_common(tfm, cryptd_tfm); | |
641 | return 0; | |
642 | } | |
643 | ||
644 | static struct crypto_alg ablk_ctr_alg = { | |
645 | .cra_name = "ctr(aes)", | |
646 | .cra_driver_name = "ctr-aes-aesni", | |
647 | .cra_priority = 400, | |
648 | .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC, | |
649 | .cra_blocksize = 1, | |
650 | .cra_ctxsize = sizeof(struct async_aes_ctx), | |
651 | .cra_alignmask = 0, | |
652 | .cra_type = &crypto_ablkcipher_type, | |
653 | .cra_module = THIS_MODULE, | |
654 | .cra_list = LIST_HEAD_INIT(ablk_ctr_alg.cra_list), | |
655 | .cra_init = ablk_ctr_init, | |
656 | .cra_exit = ablk_exit, | |
657 | .cra_u = { | |
658 | .ablkcipher = { | |
659 | .min_keysize = AES_MIN_KEY_SIZE, | |
660 | .max_keysize = AES_MAX_KEY_SIZE, | |
661 | .ivsize = AES_BLOCK_SIZE, | |
662 | .setkey = ablk_set_key, | |
663 | .encrypt = ablk_encrypt, | |
12387a46 | 664 | .decrypt = ablk_encrypt, |
2cf4ac8b HY |
665 | .geniv = "chainiv", |
666 | }, | |
667 | }, | |
668 | }; | |
12387a46 HY |
669 | |
670 | #ifdef HAS_CTR | |
671 | static int ablk_rfc3686_ctr_init(struct crypto_tfm *tfm) | |
672 | { | |
673 | struct cryptd_ablkcipher *cryptd_tfm; | |
674 | ||
675 | cryptd_tfm = cryptd_alloc_ablkcipher( | |
676 | "rfc3686(__driver-ctr-aes-aesni)", 0, 0); | |
677 | if (IS_ERR(cryptd_tfm)) | |
678 | return PTR_ERR(cryptd_tfm); | |
679 | ablk_init_common(tfm, cryptd_tfm); | |
680 | return 0; | |
681 | } | |
682 | ||
683 | static struct crypto_alg ablk_rfc3686_ctr_alg = { | |
684 | .cra_name = "rfc3686(ctr(aes))", | |
685 | .cra_driver_name = "rfc3686-ctr-aes-aesni", | |
686 | .cra_priority = 400, | |
687 | .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC, | |
688 | .cra_blocksize = 1, | |
689 | .cra_ctxsize = sizeof(struct async_aes_ctx), | |
690 | .cra_alignmask = 0, | |
691 | .cra_type = &crypto_ablkcipher_type, | |
692 | .cra_module = THIS_MODULE, | |
693 | .cra_list = LIST_HEAD_INIT(ablk_rfc3686_ctr_alg.cra_list), | |
694 | .cra_init = ablk_rfc3686_ctr_init, | |
695 | .cra_exit = ablk_exit, | |
696 | .cra_u = { | |
697 | .ablkcipher = { | |
698 | .min_keysize = AES_MIN_KEY_SIZE+CTR_RFC3686_NONCE_SIZE, | |
699 | .max_keysize = AES_MAX_KEY_SIZE+CTR_RFC3686_NONCE_SIZE, | |
700 | .ivsize = CTR_RFC3686_IV_SIZE, | |
701 | .setkey = ablk_set_key, | |
702 | .encrypt = ablk_encrypt, | |
703 | .decrypt = ablk_decrypt, | |
704 | .geniv = "seqiv", | |
705 | }, | |
706 | }, | |
707 | }; | |
2cf4ac8b | 708 | #endif |
0d258efb | 709 | #endif |
2cf4ac8b HY |
710 | |
711 | #ifdef HAS_LRW | |
712 | static int ablk_lrw_init(struct crypto_tfm *tfm) | |
713 | { | |
714 | struct cryptd_ablkcipher *cryptd_tfm; | |
715 | ||
716 | cryptd_tfm = cryptd_alloc_ablkcipher("fpu(lrw(__driver-aes-aesni))", | |
717 | 0, 0); | |
718 | if (IS_ERR(cryptd_tfm)) | |
719 | return PTR_ERR(cryptd_tfm); | |
720 | ablk_init_common(tfm, cryptd_tfm); | |
721 | return 0; | |
722 | } | |
723 | ||
724 | static struct crypto_alg ablk_lrw_alg = { | |
725 | .cra_name = "lrw(aes)", | |
726 | .cra_driver_name = "lrw-aes-aesni", | |
727 | .cra_priority = 400, | |
728 | .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC, | |
729 | .cra_blocksize = AES_BLOCK_SIZE, | |
730 | .cra_ctxsize = sizeof(struct async_aes_ctx), | |
731 | .cra_alignmask = 0, | |
732 | .cra_type = &crypto_ablkcipher_type, | |
733 | .cra_module = THIS_MODULE, | |
734 | .cra_list = LIST_HEAD_INIT(ablk_lrw_alg.cra_list), | |
735 | .cra_init = ablk_lrw_init, | |
736 | .cra_exit = ablk_exit, | |
737 | .cra_u = { | |
738 | .ablkcipher = { | |
739 | .min_keysize = AES_MIN_KEY_SIZE + AES_BLOCK_SIZE, | |
740 | .max_keysize = AES_MAX_KEY_SIZE + AES_BLOCK_SIZE, | |
741 | .ivsize = AES_BLOCK_SIZE, | |
742 | .setkey = ablk_set_key, | |
743 | .encrypt = ablk_encrypt, | |
744 | .decrypt = ablk_decrypt, | |
745 | }, | |
746 | }, | |
747 | }; | |
748 | #endif | |
749 | ||
750 | #ifdef HAS_PCBC | |
751 | static int ablk_pcbc_init(struct crypto_tfm *tfm) | |
752 | { | |
753 | struct cryptd_ablkcipher *cryptd_tfm; | |
754 | ||
755 | cryptd_tfm = cryptd_alloc_ablkcipher("fpu(pcbc(__driver-aes-aesni))", | |
756 | 0, 0); | |
757 | if (IS_ERR(cryptd_tfm)) | |
758 | return PTR_ERR(cryptd_tfm); | |
759 | ablk_init_common(tfm, cryptd_tfm); | |
760 | return 0; | |
761 | } | |
762 | ||
763 | static struct crypto_alg ablk_pcbc_alg = { | |
764 | .cra_name = "pcbc(aes)", | |
765 | .cra_driver_name = "pcbc-aes-aesni", | |
766 | .cra_priority = 400, | |
767 | .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC, | |
768 | .cra_blocksize = AES_BLOCK_SIZE, | |
769 | .cra_ctxsize = sizeof(struct async_aes_ctx), | |
770 | .cra_alignmask = 0, | |
771 | .cra_type = &crypto_ablkcipher_type, | |
772 | .cra_module = THIS_MODULE, | |
773 | .cra_list = LIST_HEAD_INIT(ablk_pcbc_alg.cra_list), | |
774 | .cra_init = ablk_pcbc_init, | |
775 | .cra_exit = ablk_exit, | |
776 | .cra_u = { | |
777 | .ablkcipher = { | |
778 | .min_keysize = AES_MIN_KEY_SIZE, | |
779 | .max_keysize = AES_MAX_KEY_SIZE, | |
780 | .ivsize = AES_BLOCK_SIZE, | |
781 | .setkey = ablk_set_key, | |
782 | .encrypt = ablk_encrypt, | |
783 | .decrypt = ablk_decrypt, | |
784 | }, | |
785 | }, | |
786 | }; | |
787 | #endif | |
788 | ||
789 | #ifdef HAS_XTS | |
790 | static int ablk_xts_init(struct crypto_tfm *tfm) | |
791 | { | |
792 | struct cryptd_ablkcipher *cryptd_tfm; | |
793 | ||
794 | cryptd_tfm = cryptd_alloc_ablkcipher("fpu(xts(__driver-aes-aesni))", | |
795 | 0, 0); | |
796 | if (IS_ERR(cryptd_tfm)) | |
797 | return PTR_ERR(cryptd_tfm); | |
798 | ablk_init_common(tfm, cryptd_tfm); | |
799 | return 0; | |
800 | } | |
801 | ||
802 | static struct crypto_alg ablk_xts_alg = { | |
803 | .cra_name = "xts(aes)", | |
804 | .cra_driver_name = "xts-aes-aesni", | |
805 | .cra_priority = 400, | |
806 | .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC, | |
807 | .cra_blocksize = AES_BLOCK_SIZE, | |
808 | .cra_ctxsize = sizeof(struct async_aes_ctx), | |
809 | .cra_alignmask = 0, | |
810 | .cra_type = &crypto_ablkcipher_type, | |
811 | .cra_module = THIS_MODULE, | |
812 | .cra_list = LIST_HEAD_INIT(ablk_xts_alg.cra_list), | |
813 | .cra_init = ablk_xts_init, | |
814 | .cra_exit = ablk_exit, | |
815 | .cra_u = { | |
816 | .ablkcipher = { | |
817 | .min_keysize = 2 * AES_MIN_KEY_SIZE, | |
818 | .max_keysize = 2 * AES_MAX_KEY_SIZE, | |
819 | .ivsize = AES_BLOCK_SIZE, | |
820 | .setkey = ablk_set_key, | |
821 | .encrypt = ablk_encrypt, | |
822 | .decrypt = ablk_decrypt, | |
823 | }, | |
824 | }, | |
825 | }; | |
826 | #endif | |
827 | ||
559ad0ff | 828 | #ifdef CONFIG_X86_64 |
0bd82f5f TS |
829 | static int rfc4106_init(struct crypto_tfm *tfm) |
830 | { | |
831 | struct cryptd_aead *cryptd_tfm; | |
832 | struct aesni_rfc4106_gcm_ctx *ctx = (struct aesni_rfc4106_gcm_ctx *) | |
833 | PTR_ALIGN((u8 *)crypto_tfm_ctx(tfm), AESNI_ALIGN); | |
60af520c TS |
834 | struct crypto_aead *cryptd_child; |
835 | struct aesni_rfc4106_gcm_ctx *child_ctx; | |
0bd82f5f TS |
836 | cryptd_tfm = cryptd_alloc_aead("__driver-gcm-aes-aesni", 0, 0); |
837 | if (IS_ERR(cryptd_tfm)) | |
838 | return PTR_ERR(cryptd_tfm); | |
60af520c TS |
839 | |
840 | cryptd_child = cryptd_aead_child(cryptd_tfm); | |
841 | child_ctx = aesni_rfc4106_gcm_ctx_get(cryptd_child); | |
842 | memcpy(child_ctx, ctx, sizeof(*ctx)); | |
0bd82f5f TS |
843 | ctx->cryptd_tfm = cryptd_tfm; |
844 | tfm->crt_aead.reqsize = sizeof(struct aead_request) | |
845 | + crypto_aead_reqsize(&cryptd_tfm->base); | |
846 | return 0; | |
847 | } | |
848 | ||
849 | static void rfc4106_exit(struct crypto_tfm *tfm) | |
850 | { | |
851 | struct aesni_rfc4106_gcm_ctx *ctx = | |
852 | (struct aesni_rfc4106_gcm_ctx *) | |
853 | PTR_ALIGN((u8 *)crypto_tfm_ctx(tfm), AESNI_ALIGN); | |
854 | if (!IS_ERR(ctx->cryptd_tfm)) | |
855 | cryptd_free_aead(ctx->cryptd_tfm); | |
856 | return; | |
857 | } | |
858 | ||
859 | static void | |
860 | rfc4106_set_hash_subkey_done(struct crypto_async_request *req, int err) | |
861 | { | |
862 | struct aesni_gcm_set_hash_subkey_result *result = req->data; | |
863 | ||
864 | if (err == -EINPROGRESS) | |
865 | return; | |
866 | result->err = err; | |
867 | complete(&result->completion); | |
868 | } | |
869 | ||
870 | static int | |
871 | rfc4106_set_hash_subkey(u8 *hash_subkey, const u8 *key, unsigned int key_len) | |
872 | { | |
873 | struct crypto_ablkcipher *ctr_tfm; | |
874 | struct ablkcipher_request *req; | |
875 | int ret = -EINVAL; | |
876 | struct aesni_hash_subkey_req_data *req_data; | |
877 | ||
878 | ctr_tfm = crypto_alloc_ablkcipher("ctr(aes)", 0, 0); | |
879 | if (IS_ERR(ctr_tfm)) | |
880 | return PTR_ERR(ctr_tfm); | |
881 | ||
882 | crypto_ablkcipher_clear_flags(ctr_tfm, ~0); | |
883 | ||
884 | ret = crypto_ablkcipher_setkey(ctr_tfm, key, key_len); | |
7efd95f6 | 885 | if (ret) |
fc9044e2 | 886 | goto out_free_ablkcipher; |
0bd82f5f | 887 | |
fc9044e2 | 888 | ret = -ENOMEM; |
0bd82f5f | 889 | req = ablkcipher_request_alloc(ctr_tfm, GFP_KERNEL); |
fc9044e2 | 890 | if (!req) |
7efd95f6 | 891 | goto out_free_ablkcipher; |
0bd82f5f TS |
892 | |
893 | req_data = kmalloc(sizeof(*req_data), GFP_KERNEL); | |
fc9044e2 | 894 | if (!req_data) |
7efd95f6 | 895 | goto out_free_request; |
fc9044e2 | 896 | |
0bd82f5f TS |
897 | memset(req_data->iv, 0, sizeof(req_data->iv)); |
898 | ||
899 | /* Clear the data in the hash sub key container to zero.*/ | |
900 | /* We want to cipher all zeros to create the hash sub key. */ | |
901 | memset(hash_subkey, 0, RFC4106_HASH_SUBKEY_SIZE); | |
902 | ||
903 | init_completion(&req_data->result.completion); | |
904 | sg_init_one(&req_data->sg, hash_subkey, RFC4106_HASH_SUBKEY_SIZE); | |
905 | ablkcipher_request_set_tfm(req, ctr_tfm); | |
906 | ablkcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_SLEEP | | |
907 | CRYPTO_TFM_REQ_MAY_BACKLOG, | |
908 | rfc4106_set_hash_subkey_done, | |
909 | &req_data->result); | |
910 | ||
911 | ablkcipher_request_set_crypt(req, &req_data->sg, | |
912 | &req_data->sg, RFC4106_HASH_SUBKEY_SIZE, req_data->iv); | |
913 | ||
914 | ret = crypto_ablkcipher_encrypt(req); | |
915 | if (ret == -EINPROGRESS || ret == -EBUSY) { | |
916 | ret = wait_for_completion_interruptible | |
917 | (&req_data->result.completion); | |
918 | if (!ret) | |
919 | ret = req_data->result.err; | |
920 | } | |
fc9044e2 | 921 | kfree(req_data); |
7efd95f6 | 922 | out_free_request: |
0bd82f5f | 923 | ablkcipher_request_free(req); |
7efd95f6 | 924 | out_free_ablkcipher: |
0bd82f5f TS |
925 | crypto_free_ablkcipher(ctr_tfm); |
926 | return ret; | |
927 | } | |
928 | ||
929 | static int rfc4106_set_key(struct crypto_aead *parent, const u8 *key, | |
930 | unsigned int key_len) | |
931 | { | |
932 | int ret = 0; | |
933 | struct crypto_tfm *tfm = crypto_aead_tfm(parent); | |
934 | struct aesni_rfc4106_gcm_ctx *ctx = aesni_rfc4106_gcm_ctx_get(parent); | |
60af520c TS |
935 | struct crypto_aead *cryptd_child = cryptd_aead_child(ctx->cryptd_tfm); |
936 | struct aesni_rfc4106_gcm_ctx *child_ctx = | |
937 | aesni_rfc4106_gcm_ctx_get(cryptd_child); | |
0bd82f5f TS |
938 | u8 *new_key_mem = NULL; |
939 | ||
940 | if (key_len < 4) { | |
941 | crypto_tfm_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN); | |
942 | return -EINVAL; | |
943 | } | |
944 | /*Account for 4 byte nonce at the end.*/ | |
945 | key_len -= 4; | |
946 | if (key_len != AES_KEYSIZE_128) { | |
947 | crypto_tfm_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN); | |
948 | return -EINVAL; | |
949 | } | |
950 | ||
951 | memcpy(ctx->nonce, key + key_len, sizeof(ctx->nonce)); | |
952 | /*This must be on a 16 byte boundary!*/ | |
953 | if ((unsigned long)(&(ctx->aes_key_expanded.key_enc[0])) % AESNI_ALIGN) | |
954 | return -EINVAL; | |
955 | ||
956 | if ((unsigned long)key % AESNI_ALIGN) { | |
957 | /*key is not aligned: use an auxuliar aligned pointer*/ | |
958 | new_key_mem = kmalloc(key_len+AESNI_ALIGN, GFP_KERNEL); | |
959 | if (!new_key_mem) | |
960 | return -ENOMEM; | |
961 | ||
962 | new_key_mem = PTR_ALIGN(new_key_mem, AESNI_ALIGN); | |
963 | memcpy(new_key_mem, key, key_len); | |
964 | key = new_key_mem; | |
965 | } | |
966 | ||
967 | if (!irq_fpu_usable()) | |
968 | ret = crypto_aes_expand_key(&(ctx->aes_key_expanded), | |
969 | key, key_len); | |
970 | else { | |
971 | kernel_fpu_begin(); | |
972 | ret = aesni_set_key(&(ctx->aes_key_expanded), key, key_len); | |
973 | kernel_fpu_end(); | |
974 | } | |
975 | /*This must be on a 16 byte boundary!*/ | |
976 | if ((unsigned long)(&(ctx->hash_subkey[0])) % AESNI_ALIGN) { | |
977 | ret = -EINVAL; | |
978 | goto exit; | |
979 | } | |
980 | ret = rfc4106_set_hash_subkey(ctx->hash_subkey, key, key_len); | |
60af520c | 981 | memcpy(child_ctx, ctx, sizeof(*ctx)); |
0bd82f5f TS |
982 | exit: |
983 | kfree(new_key_mem); | |
984 | return ret; | |
985 | } | |
986 | ||
987 | /* This is the Integrity Check Value (aka the authentication tag length and can | |
988 | * be 8, 12 or 16 bytes long. */ | |
989 | static int rfc4106_set_authsize(struct crypto_aead *parent, | |
990 | unsigned int authsize) | |
991 | { | |
992 | struct aesni_rfc4106_gcm_ctx *ctx = aesni_rfc4106_gcm_ctx_get(parent); | |
993 | struct crypto_aead *cryptd_child = cryptd_aead_child(ctx->cryptd_tfm); | |
994 | ||
995 | switch (authsize) { | |
996 | case 8: | |
997 | case 12: | |
998 | case 16: | |
999 | break; | |
1000 | default: | |
1001 | return -EINVAL; | |
1002 | } | |
1003 | crypto_aead_crt(parent)->authsize = authsize; | |
1004 | crypto_aead_crt(cryptd_child)->authsize = authsize; | |
1005 | return 0; | |
1006 | } | |
1007 | ||
1008 | static int rfc4106_encrypt(struct aead_request *req) | |
1009 | { | |
1010 | int ret; | |
1011 | struct crypto_aead *tfm = crypto_aead_reqtfm(req); | |
1012 | struct aesni_rfc4106_gcm_ctx *ctx = aesni_rfc4106_gcm_ctx_get(tfm); | |
0bd82f5f TS |
1013 | |
1014 | if (!irq_fpu_usable()) { | |
1015 | struct aead_request *cryptd_req = | |
1016 | (struct aead_request *) aead_request_ctx(req); | |
1017 | memcpy(cryptd_req, req, sizeof(*req)); | |
1018 | aead_request_set_tfm(cryptd_req, &ctx->cryptd_tfm->base); | |
1019 | return crypto_aead_encrypt(cryptd_req); | |
1020 | } else { | |
60af520c | 1021 | struct crypto_aead *cryptd_child = cryptd_aead_child(ctx->cryptd_tfm); |
0bd82f5f TS |
1022 | kernel_fpu_begin(); |
1023 | ret = cryptd_child->base.crt_aead.encrypt(req); | |
1024 | kernel_fpu_end(); | |
1025 | return ret; | |
1026 | } | |
1027 | } | |
1028 | ||
1029 | static int rfc4106_decrypt(struct aead_request *req) | |
1030 | { | |
1031 | int ret; | |
1032 | struct crypto_aead *tfm = crypto_aead_reqtfm(req); | |
1033 | struct aesni_rfc4106_gcm_ctx *ctx = aesni_rfc4106_gcm_ctx_get(tfm); | |
0bd82f5f TS |
1034 | |
1035 | if (!irq_fpu_usable()) { | |
1036 | struct aead_request *cryptd_req = | |
1037 | (struct aead_request *) aead_request_ctx(req); | |
1038 | memcpy(cryptd_req, req, sizeof(*req)); | |
1039 | aead_request_set_tfm(cryptd_req, &ctx->cryptd_tfm->base); | |
1040 | return crypto_aead_decrypt(cryptd_req); | |
1041 | } else { | |
60af520c | 1042 | struct crypto_aead *cryptd_child = cryptd_aead_child(ctx->cryptd_tfm); |
0bd82f5f TS |
1043 | kernel_fpu_begin(); |
1044 | ret = cryptd_child->base.crt_aead.decrypt(req); | |
1045 | kernel_fpu_end(); | |
1046 | return ret; | |
1047 | } | |
1048 | } | |
1049 | ||
1050 | static struct crypto_alg rfc4106_alg = { | |
1051 | .cra_name = "rfc4106(gcm(aes))", | |
1052 | .cra_driver_name = "rfc4106-gcm-aesni", | |
1053 | .cra_priority = 400, | |
1054 | .cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC, | |
1055 | .cra_blocksize = 1, | |
1056 | .cra_ctxsize = sizeof(struct aesni_rfc4106_gcm_ctx) + AESNI_ALIGN, | |
1057 | .cra_alignmask = 0, | |
1058 | .cra_type = &crypto_nivaead_type, | |
1059 | .cra_module = THIS_MODULE, | |
1060 | .cra_list = LIST_HEAD_INIT(rfc4106_alg.cra_list), | |
1061 | .cra_init = rfc4106_init, | |
1062 | .cra_exit = rfc4106_exit, | |
1063 | .cra_u = { | |
1064 | .aead = { | |
1065 | .setkey = rfc4106_set_key, | |
1066 | .setauthsize = rfc4106_set_authsize, | |
1067 | .encrypt = rfc4106_encrypt, | |
1068 | .decrypt = rfc4106_decrypt, | |
1069 | .geniv = "seqiv", | |
1070 | .ivsize = 8, | |
1071 | .maxauthsize = 16, | |
1072 | }, | |
1073 | }, | |
1074 | }; | |
1075 | ||
1076 | static int __driver_rfc4106_encrypt(struct aead_request *req) | |
1077 | { | |
1078 | u8 one_entry_in_sg = 0; | |
1079 | u8 *src, *dst, *assoc; | |
1080 | __be32 counter = cpu_to_be32(1); | |
1081 | struct crypto_aead *tfm = crypto_aead_reqtfm(req); | |
1082 | struct aesni_rfc4106_gcm_ctx *ctx = aesni_rfc4106_gcm_ctx_get(tfm); | |
1083 | void *aes_ctx = &(ctx->aes_key_expanded); | |
1084 | unsigned long auth_tag_len = crypto_aead_authsize(tfm); | |
1085 | u8 iv_tab[16+AESNI_ALIGN]; | |
1086 | u8* iv = (u8 *) PTR_ALIGN((u8 *)iv_tab, AESNI_ALIGN); | |
1087 | struct scatter_walk src_sg_walk; | |
1088 | struct scatter_walk assoc_sg_walk; | |
1089 | struct scatter_walk dst_sg_walk; | |
1090 | unsigned int i; | |
1091 | ||
1092 | /* Assuming we are supporting rfc4106 64-bit extended */ | |
1093 | /* sequence numbers We need to have the AAD length equal */ | |
1094 | /* to 8 or 12 bytes */ | |
1095 | if (unlikely(req->assoclen != 8 && req->assoclen != 12)) | |
1096 | return -EINVAL; | |
1097 | /* IV below built */ | |
1098 | for (i = 0; i < 4; i++) | |
1099 | *(iv+i) = ctx->nonce[i]; | |
1100 | for (i = 0; i < 8; i++) | |
1101 | *(iv+4+i) = req->iv[i]; | |
1102 | *((__be32 *)(iv+12)) = counter; | |
1103 | ||
1104 | if ((sg_is_last(req->src)) && (sg_is_last(req->assoc))) { | |
1105 | one_entry_in_sg = 1; | |
1106 | scatterwalk_start(&src_sg_walk, req->src); | |
1107 | scatterwalk_start(&assoc_sg_walk, req->assoc); | |
1108 | src = scatterwalk_map(&src_sg_walk, 0); | |
1109 | assoc = scatterwalk_map(&assoc_sg_walk, 0); | |
1110 | dst = src; | |
1111 | if (unlikely(req->src != req->dst)) { | |
1112 | scatterwalk_start(&dst_sg_walk, req->dst); | |
1113 | dst = scatterwalk_map(&dst_sg_walk, 0); | |
1114 | } | |
1115 | ||
1116 | } else { | |
1117 | /* Allocate memory for src, dst, assoc */ | |
1118 | src = kmalloc(req->cryptlen + auth_tag_len + req->assoclen, | |
1119 | GFP_ATOMIC); | |
1120 | if (unlikely(!src)) | |
1121 | return -ENOMEM; | |
1122 | assoc = (src + req->cryptlen + auth_tag_len); | |
1123 | scatterwalk_map_and_copy(src, req->src, 0, req->cryptlen, 0); | |
1124 | scatterwalk_map_and_copy(assoc, req->assoc, 0, | |
1125 | req->assoclen, 0); | |
1126 | dst = src; | |
1127 | } | |
1128 | ||
1129 | aesni_gcm_enc(aes_ctx, dst, src, (unsigned long)req->cryptlen, iv, | |
1130 | ctx->hash_subkey, assoc, (unsigned long)req->assoclen, dst | |
1131 | + ((unsigned long)req->cryptlen), auth_tag_len); | |
1132 | ||
1133 | /* The authTag (aka the Integrity Check Value) needs to be written | |
1134 | * back to the packet. */ | |
1135 | if (one_entry_in_sg) { | |
1136 | if (unlikely(req->src != req->dst)) { | |
1137 | scatterwalk_unmap(dst, 0); | |
1138 | scatterwalk_done(&dst_sg_walk, 0, 0); | |
1139 | } | |
1140 | scatterwalk_unmap(src, 0); | |
1141 | scatterwalk_unmap(assoc, 0); | |
1142 | scatterwalk_done(&src_sg_walk, 0, 0); | |
1143 | scatterwalk_done(&assoc_sg_walk, 0, 0); | |
1144 | } else { | |
1145 | scatterwalk_map_and_copy(dst, req->dst, 0, | |
1146 | req->cryptlen + auth_tag_len, 1); | |
1147 | kfree(src); | |
1148 | } | |
1149 | return 0; | |
1150 | } | |
1151 | ||
1152 | static int __driver_rfc4106_decrypt(struct aead_request *req) | |
1153 | { | |
1154 | u8 one_entry_in_sg = 0; | |
1155 | u8 *src, *dst, *assoc; | |
1156 | unsigned long tempCipherLen = 0; | |
1157 | __be32 counter = cpu_to_be32(1); | |
1158 | int retval = 0; | |
1159 | struct crypto_aead *tfm = crypto_aead_reqtfm(req); | |
1160 | struct aesni_rfc4106_gcm_ctx *ctx = aesni_rfc4106_gcm_ctx_get(tfm); | |
1161 | void *aes_ctx = &(ctx->aes_key_expanded); | |
1162 | unsigned long auth_tag_len = crypto_aead_authsize(tfm); | |
1163 | u8 iv_and_authTag[32+AESNI_ALIGN]; | |
1164 | u8 *iv = (u8 *) PTR_ALIGN((u8 *)iv_and_authTag, AESNI_ALIGN); | |
1165 | u8 *authTag = iv + 16; | |
1166 | struct scatter_walk src_sg_walk; | |
1167 | struct scatter_walk assoc_sg_walk; | |
1168 | struct scatter_walk dst_sg_walk; | |
1169 | unsigned int i; | |
1170 | ||
1171 | if (unlikely((req->cryptlen < auth_tag_len) || | |
1172 | (req->assoclen != 8 && req->assoclen != 12))) | |
1173 | return -EINVAL; | |
1174 | /* Assuming we are supporting rfc4106 64-bit extended */ | |
1175 | /* sequence numbers We need to have the AAD length */ | |
1176 | /* equal to 8 or 12 bytes */ | |
1177 | ||
1178 | tempCipherLen = (unsigned long)(req->cryptlen - auth_tag_len); | |
1179 | /* IV below built */ | |
1180 | for (i = 0; i < 4; i++) | |
1181 | *(iv+i) = ctx->nonce[i]; | |
1182 | for (i = 0; i < 8; i++) | |
1183 | *(iv+4+i) = req->iv[i]; | |
1184 | *((__be32 *)(iv+12)) = counter; | |
1185 | ||
1186 | if ((sg_is_last(req->src)) && (sg_is_last(req->assoc))) { | |
1187 | one_entry_in_sg = 1; | |
1188 | scatterwalk_start(&src_sg_walk, req->src); | |
1189 | scatterwalk_start(&assoc_sg_walk, req->assoc); | |
1190 | src = scatterwalk_map(&src_sg_walk, 0); | |
1191 | assoc = scatterwalk_map(&assoc_sg_walk, 0); | |
1192 | dst = src; | |
1193 | if (unlikely(req->src != req->dst)) { | |
1194 | scatterwalk_start(&dst_sg_walk, req->dst); | |
1195 | dst = scatterwalk_map(&dst_sg_walk, 0); | |
1196 | } | |
1197 | ||
1198 | } else { | |
1199 | /* Allocate memory for src, dst, assoc */ | |
1200 | src = kmalloc(req->cryptlen + req->assoclen, GFP_ATOMIC); | |
1201 | if (!src) | |
1202 | return -ENOMEM; | |
1203 | assoc = (src + req->cryptlen + auth_tag_len); | |
1204 | scatterwalk_map_and_copy(src, req->src, 0, req->cryptlen, 0); | |
1205 | scatterwalk_map_and_copy(assoc, req->assoc, 0, | |
1206 | req->assoclen, 0); | |
1207 | dst = src; | |
1208 | } | |
1209 | ||
1210 | aesni_gcm_dec(aes_ctx, dst, src, tempCipherLen, iv, | |
1211 | ctx->hash_subkey, assoc, (unsigned long)req->assoclen, | |
1212 | authTag, auth_tag_len); | |
1213 | ||
1214 | /* Compare generated tag with passed in tag. */ | |
1215 | retval = memcmp(src + tempCipherLen, authTag, auth_tag_len) ? | |
1216 | -EBADMSG : 0; | |
1217 | ||
1218 | if (one_entry_in_sg) { | |
1219 | if (unlikely(req->src != req->dst)) { | |
1220 | scatterwalk_unmap(dst, 0); | |
1221 | scatterwalk_done(&dst_sg_walk, 0, 0); | |
1222 | } | |
1223 | scatterwalk_unmap(src, 0); | |
1224 | scatterwalk_unmap(assoc, 0); | |
1225 | scatterwalk_done(&src_sg_walk, 0, 0); | |
1226 | scatterwalk_done(&assoc_sg_walk, 0, 0); | |
1227 | } else { | |
1228 | scatterwalk_map_and_copy(dst, req->dst, 0, req->cryptlen, 1); | |
1229 | kfree(src); | |
1230 | } | |
1231 | return retval; | |
1232 | } | |
1233 | ||
1234 | static struct crypto_alg __rfc4106_alg = { | |
1235 | .cra_name = "__gcm-aes-aesni", | |
1236 | .cra_driver_name = "__driver-gcm-aes-aesni", | |
1237 | .cra_priority = 0, | |
1238 | .cra_flags = CRYPTO_ALG_TYPE_AEAD, | |
1239 | .cra_blocksize = 1, | |
1240 | .cra_ctxsize = sizeof(struct aesni_rfc4106_gcm_ctx) + AESNI_ALIGN, | |
1241 | .cra_alignmask = 0, | |
1242 | .cra_type = &crypto_aead_type, | |
1243 | .cra_module = THIS_MODULE, | |
1244 | .cra_list = LIST_HEAD_INIT(__rfc4106_alg.cra_list), | |
1245 | .cra_u = { | |
1246 | .aead = { | |
1247 | .encrypt = __driver_rfc4106_encrypt, | |
1248 | .decrypt = __driver_rfc4106_decrypt, | |
1249 | }, | |
1250 | }, | |
1251 | }; | |
559ad0ff | 1252 | #endif |
0bd82f5f | 1253 | |
54b6a1bd HY |
1254 | static int __init aesni_init(void) |
1255 | { | |
1256 | int err; | |
1257 | ||
1258 | if (!cpu_has_aes) { | |
c9944881 | 1259 | printk(KERN_INFO "Intel AES-NI instructions are not detected.\n"); |
54b6a1bd HY |
1260 | return -ENODEV; |
1261 | } | |
0bd82f5f | 1262 | |
b23b6451 AL |
1263 | if ((err = crypto_fpu_init())) |
1264 | goto fpu_err; | |
54b6a1bd HY |
1265 | if ((err = crypto_register_alg(&aesni_alg))) |
1266 | goto aes_err; | |
2cf4ac8b HY |
1267 | if ((err = crypto_register_alg(&__aesni_alg))) |
1268 | goto __aes_err; | |
54b6a1bd HY |
1269 | if ((err = crypto_register_alg(&blk_ecb_alg))) |
1270 | goto blk_ecb_err; | |
1271 | if ((err = crypto_register_alg(&blk_cbc_alg))) | |
1272 | goto blk_cbc_err; | |
1273 | if ((err = crypto_register_alg(&ablk_ecb_alg))) | |
1274 | goto ablk_ecb_err; | |
1275 | if ((err = crypto_register_alg(&ablk_cbc_alg))) | |
1276 | goto ablk_cbc_err; | |
0d258efb MK |
1277 | #ifdef CONFIG_X86_64 |
1278 | if ((err = crypto_register_alg(&blk_ctr_alg))) | |
1279 | goto blk_ctr_err; | |
2cf4ac8b HY |
1280 | if ((err = crypto_register_alg(&ablk_ctr_alg))) |
1281 | goto ablk_ctr_err; | |
559ad0ff MK |
1282 | if ((err = crypto_register_alg(&__rfc4106_alg))) |
1283 | goto __aead_gcm_err; | |
1284 | if ((err = crypto_register_alg(&rfc4106_alg))) | |
1285 | goto aead_gcm_err; | |
12387a46 HY |
1286 | #ifdef HAS_CTR |
1287 | if ((err = crypto_register_alg(&ablk_rfc3686_ctr_alg))) | |
1288 | goto ablk_rfc3686_ctr_err; | |
2cf4ac8b | 1289 | #endif |
0d258efb | 1290 | #endif |
2cf4ac8b HY |
1291 | #ifdef HAS_LRW |
1292 | if ((err = crypto_register_alg(&ablk_lrw_alg))) | |
1293 | goto ablk_lrw_err; | |
1294 | #endif | |
1295 | #ifdef HAS_PCBC | |
1296 | if ((err = crypto_register_alg(&ablk_pcbc_alg))) | |
1297 | goto ablk_pcbc_err; | |
1298 | #endif | |
1299 | #ifdef HAS_XTS | |
1300 | if ((err = crypto_register_alg(&ablk_xts_alg))) | |
1301 | goto ablk_xts_err; | |
1302 | #endif | |
54b6a1bd HY |
1303 | return err; |
1304 | ||
2cf4ac8b HY |
1305 | #ifdef HAS_XTS |
1306 | ablk_xts_err: | |
1307 | #endif | |
1308 | #ifdef HAS_PCBC | |
1309 | crypto_unregister_alg(&ablk_pcbc_alg); | |
1310 | ablk_pcbc_err: | |
1311 | #endif | |
1312 | #ifdef HAS_LRW | |
1313 | crypto_unregister_alg(&ablk_lrw_alg); | |
1314 | ablk_lrw_err: | |
1315 | #endif | |
0d258efb | 1316 | #ifdef CONFIG_X86_64 |
2cf4ac8b | 1317 | #ifdef HAS_CTR |
12387a46 HY |
1318 | crypto_unregister_alg(&ablk_rfc3686_ctr_alg); |
1319 | ablk_rfc3686_ctr_err: | |
1320 | #endif | |
559ad0ff MK |
1321 | crypto_unregister_alg(&rfc4106_alg); |
1322 | aead_gcm_err: | |
1323 | crypto_unregister_alg(&__rfc4106_alg); | |
1324 | __aead_gcm_err: | |
2cf4ac8b HY |
1325 | crypto_unregister_alg(&ablk_ctr_alg); |
1326 | ablk_ctr_err: | |
0d258efb MK |
1327 | crypto_unregister_alg(&blk_ctr_alg); |
1328 | blk_ctr_err: | |
1329 | #endif | |
2cf4ac8b | 1330 | crypto_unregister_alg(&ablk_cbc_alg); |
54b6a1bd HY |
1331 | ablk_cbc_err: |
1332 | crypto_unregister_alg(&ablk_ecb_alg); | |
1333 | ablk_ecb_err: | |
1334 | crypto_unregister_alg(&blk_cbc_alg); | |
1335 | blk_cbc_err: | |
1336 | crypto_unregister_alg(&blk_ecb_alg); | |
1337 | blk_ecb_err: | |
2cf4ac8b HY |
1338 | crypto_unregister_alg(&__aesni_alg); |
1339 | __aes_err: | |
54b6a1bd HY |
1340 | crypto_unregister_alg(&aesni_alg); |
1341 | aes_err: | |
b23b6451 | 1342 | fpu_err: |
54b6a1bd HY |
1343 | return err; |
1344 | } | |
1345 | ||
1346 | static void __exit aesni_exit(void) | |
1347 | { | |
2cf4ac8b HY |
1348 | #ifdef HAS_XTS |
1349 | crypto_unregister_alg(&ablk_xts_alg); | |
1350 | #endif | |
1351 | #ifdef HAS_PCBC | |
1352 | crypto_unregister_alg(&ablk_pcbc_alg); | |
1353 | #endif | |
1354 | #ifdef HAS_LRW | |
1355 | crypto_unregister_alg(&ablk_lrw_alg); | |
1356 | #endif | |
0d258efb | 1357 | #ifdef CONFIG_X86_64 |
2cf4ac8b | 1358 | #ifdef HAS_CTR |
12387a46 | 1359 | crypto_unregister_alg(&ablk_rfc3686_ctr_alg); |
2cf4ac8b | 1360 | #endif |
559ad0ff MK |
1361 | crypto_unregister_alg(&rfc4106_alg); |
1362 | crypto_unregister_alg(&__rfc4106_alg); | |
12387a46 | 1363 | crypto_unregister_alg(&ablk_ctr_alg); |
0d258efb MK |
1364 | crypto_unregister_alg(&blk_ctr_alg); |
1365 | #endif | |
54b6a1bd HY |
1366 | crypto_unregister_alg(&ablk_cbc_alg); |
1367 | crypto_unregister_alg(&ablk_ecb_alg); | |
1368 | crypto_unregister_alg(&blk_cbc_alg); | |
1369 | crypto_unregister_alg(&blk_ecb_alg); | |
2cf4ac8b | 1370 | crypto_unregister_alg(&__aesni_alg); |
54b6a1bd | 1371 | crypto_unregister_alg(&aesni_alg); |
b23b6451 AL |
1372 | |
1373 | crypto_fpu_exit(); | |
54b6a1bd HY |
1374 | } |
1375 | ||
1376 | module_init(aesni_init); | |
1377 | module_exit(aesni_exit); | |
1378 | ||
1379 | MODULE_DESCRIPTION("Rijndael (AES) Cipher Algorithm, Intel AES-NI instructions optimized"); | |
1380 | MODULE_LICENSE("GPL"); | |
1381 | MODULE_ALIAS("aes"); |