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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> | |
7c52d551 | 24 | #include <linux/module.h> |
54b6a1bd HY |
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> |
023af608 | 30 | #include <crypto/b128ops.h> |
46d93748 | 31 | #include <crypto/gcm.h> |
023af608 | 32 | #include <crypto/xts.h> |
3bd391f0 | 33 | #include <asm/cpu_device_id.h> |
df6b35f4 | 34 | #include <asm/fpu/api.h> |
70ef2601 | 35 | #include <asm/crypto/aes.h> |
0bd82f5f TS |
36 | #include <crypto/scatterwalk.h> |
37 | #include <crypto/internal/aead.h> | |
85671860 HX |
38 | #include <crypto/internal/simd.h> |
39 | #include <crypto/internal/skcipher.h> | |
0bd82f5f TS |
40 | #include <linux/workqueue.h> |
41 | #include <linux/spinlock.h> | |
c456a9cd JK |
42 | #ifdef CONFIG_X86_64 |
43 | #include <asm/crypto/glue_helper.h> | |
44 | #endif | |
54b6a1bd | 45 | |
e31ac32d | 46 | |
b7c89d9e | 47 | #define AESNI_ALIGN 16 |
85671860 | 48 | #define AESNI_ALIGN_ATTR __attribute__ ((__aligned__(AESNI_ALIGN))) |
b7c89d9e HX |
49 | #define AES_BLOCK_MASK (~(AES_BLOCK_SIZE - 1)) |
50 | #define RFC4106_HASH_SUBKEY_SIZE 16 | |
85671860 HX |
51 | #define AESNI_ALIGN_EXTRA ((AESNI_ALIGN - 1) & ~(CRYPTO_MINALIGN - 1)) |
52 | #define CRYPTO_AES_CTX_SIZE (sizeof(struct crypto_aes_ctx) + AESNI_ALIGN_EXTRA) | |
53 | #define XTS_AES_CTX_SIZE (sizeof(struct aesni_xts_ctx) + AESNI_ALIGN_EXTRA) | |
b7c89d9e | 54 | |
0bd82f5f TS |
55 | /* This data is stored at the end of the crypto_tfm struct. |
56 | * It's a type of per "session" data storage location. | |
57 | * This needs to be 16 byte aligned. | |
58 | */ | |
59 | struct aesni_rfc4106_gcm_ctx { | |
85671860 HX |
60 | u8 hash_subkey[16] AESNI_ALIGN_ATTR; |
61 | struct crypto_aes_ctx aes_key_expanded AESNI_ALIGN_ATTR; | |
0bd82f5f | 62 | u8 nonce[4]; |
0bd82f5f TS |
63 | }; |
64 | ||
cce2ea8d SD |
65 | struct generic_gcmaes_ctx { |
66 | u8 hash_subkey[16] AESNI_ALIGN_ATTR; | |
67 | struct crypto_aes_ctx aes_key_expanded AESNI_ALIGN_ATTR; | |
68 | }; | |
69 | ||
023af608 | 70 | struct aesni_xts_ctx { |
85671860 HX |
71 | u8 raw_tweak_ctx[sizeof(struct crypto_aes_ctx)] AESNI_ALIGN_ATTR; |
72 | u8 raw_crypt_ctx[sizeof(struct crypto_aes_ctx)] AESNI_ALIGN_ATTR; | |
023af608 JK |
73 | }; |
74 | ||
9ee4a5df DW |
75 | #define GCM_BLOCK_LEN 16 |
76 | ||
77 | struct gcm_context_data { | |
78 | /* init, update and finalize context data */ | |
79 | u8 aad_hash[GCM_BLOCK_LEN]; | |
80 | u64 aad_length; | |
81 | u64 in_length; | |
82 | u8 partial_block_enc_key[GCM_BLOCK_LEN]; | |
83 | u8 orig_IV[GCM_BLOCK_LEN]; | |
84 | u8 current_counter[GCM_BLOCK_LEN]; | |
85 | u64 partial_block_len; | |
86 | u64 unused; | |
de85fc46 | 87 | u8 hash_keys[GCM_BLOCK_LEN * 16]; |
9ee4a5df DW |
88 | }; |
89 | ||
54b6a1bd HY |
90 | asmlinkage int aesni_set_key(struct crypto_aes_ctx *ctx, const u8 *in_key, |
91 | unsigned int key_len); | |
92 | asmlinkage void aesni_enc(struct crypto_aes_ctx *ctx, u8 *out, | |
93 | const u8 *in); | |
94 | asmlinkage void aesni_dec(struct crypto_aes_ctx *ctx, u8 *out, | |
95 | const u8 *in); | |
96 | asmlinkage void aesni_ecb_enc(struct crypto_aes_ctx *ctx, u8 *out, | |
97 | const u8 *in, unsigned int len); | |
98 | asmlinkage void aesni_ecb_dec(struct crypto_aes_ctx *ctx, u8 *out, | |
99 | const u8 *in, unsigned int len); | |
100 | asmlinkage void aesni_cbc_enc(struct crypto_aes_ctx *ctx, u8 *out, | |
101 | const u8 *in, unsigned int len, u8 *iv); | |
102 | asmlinkage void aesni_cbc_dec(struct crypto_aes_ctx *ctx, u8 *out, | |
103 | const u8 *in, unsigned int len, u8 *iv); | |
9bed4aca | 104 | |
d764593a TC |
105 | #define AVX_GEN2_OPTSIZE 640 |
106 | #define AVX_GEN4_OPTSIZE 4096 | |
107 | ||
0d258efb | 108 | #ifdef CONFIG_X86_64 |
22cddcc7 | 109 | |
110 | static void (*aesni_ctr_enc_tfm)(struct crypto_aes_ctx *ctx, u8 *out, | |
111 | const u8 *in, unsigned int len, u8 *iv); | |
12387a46 HY |
112 | asmlinkage void aesni_ctr_enc(struct crypto_aes_ctx *ctx, u8 *out, |
113 | const u8 *in, unsigned int len, u8 *iv); | |
54b6a1bd | 114 | |
c456a9cd JK |
115 | asmlinkage void aesni_xts_crypt8(struct crypto_aes_ctx *ctx, u8 *out, |
116 | const u8 *in, bool enc, u8 *iv); | |
117 | ||
0bd82f5f TS |
118 | /* asmlinkage void aesni_gcm_enc() |
119 | * void *ctx, AES Key schedule. Starts on a 16 byte boundary. | |
9ee4a5df | 120 | * struct gcm_context_data. May be uninitialized. |
0bd82f5f TS |
121 | * u8 *out, Ciphertext output. Encrypt in-place is allowed. |
122 | * const u8 *in, Plaintext input | |
123 | * unsigned long plaintext_len, Length of data in bytes for encryption. | |
cce2ea8d SD |
124 | * u8 *iv, Pre-counter block j0: 12 byte IV concatenated with 0x00000001. |
125 | * 16-byte aligned pointer. | |
0bd82f5f TS |
126 | * u8 *hash_subkey, the Hash sub key input. Data starts on a 16-byte boundary. |
127 | * const u8 *aad, Additional Authentication Data (AAD) | |
cce2ea8d | 128 | * unsigned long aad_len, Length of AAD in bytes. |
0bd82f5f TS |
129 | * u8 *auth_tag, Authenticated Tag output. |
130 | * unsigned long auth_tag_len), Authenticated Tag Length in bytes. | |
131 | * Valid values are 16 (most likely), 12 or 8. | |
132 | */ | |
9ee4a5df DW |
133 | asmlinkage void aesni_gcm_enc(void *ctx, |
134 | struct gcm_context_data *gdata, u8 *out, | |
0bd82f5f TS |
135 | const u8 *in, unsigned long plaintext_len, u8 *iv, |
136 | u8 *hash_subkey, const u8 *aad, unsigned long aad_len, | |
137 | u8 *auth_tag, unsigned long auth_tag_len); | |
138 | ||
139 | /* asmlinkage void aesni_gcm_dec() | |
140 | * void *ctx, AES Key schedule. Starts on a 16 byte boundary. | |
9ee4a5df | 141 | * struct gcm_context_data. May be uninitialized. |
0bd82f5f TS |
142 | * u8 *out, Plaintext output. Decrypt in-place is allowed. |
143 | * const u8 *in, Ciphertext input | |
144 | * unsigned long ciphertext_len, Length of data in bytes for decryption. | |
cce2ea8d SD |
145 | * u8 *iv, Pre-counter block j0: 12 byte IV concatenated with 0x00000001. |
146 | * 16-byte aligned pointer. | |
0bd82f5f TS |
147 | * u8 *hash_subkey, the Hash sub key input. Data starts on a 16-byte boundary. |
148 | * const u8 *aad, Additional Authentication Data (AAD) | |
149 | * unsigned long aad_len, Length of AAD in bytes. With RFC4106 this is going | |
150 | * to be 8 or 12 bytes | |
151 | * u8 *auth_tag, Authenticated Tag output. | |
152 | * unsigned long auth_tag_len) Authenticated Tag Length in bytes. | |
153 | * Valid values are 16 (most likely), 12 or 8. | |
154 | */ | |
9ee4a5df DW |
155 | asmlinkage void aesni_gcm_dec(void *ctx, |
156 | struct gcm_context_data *gdata, u8 *out, | |
0bd82f5f TS |
157 | const u8 *in, unsigned long ciphertext_len, u8 *iv, |
158 | u8 *hash_subkey, const u8 *aad, unsigned long aad_len, | |
159 | u8 *auth_tag, unsigned long auth_tag_len); | |
160 | ||
fb8986e6 DW |
161 | /* Scatter / Gather routines, with args similar to above */ |
162 | asmlinkage void aesni_gcm_init(void *ctx, | |
163 | struct gcm_context_data *gdata, | |
164 | u8 *iv, | |
165 | u8 *hash_subkey, const u8 *aad, | |
166 | unsigned long aad_len); | |
167 | asmlinkage void aesni_gcm_enc_update(void *ctx, | |
168 | struct gcm_context_data *gdata, u8 *out, | |
169 | const u8 *in, unsigned long plaintext_len); | |
170 | asmlinkage void aesni_gcm_dec_update(void *ctx, | |
171 | struct gcm_context_data *gdata, u8 *out, | |
172 | const u8 *in, | |
173 | unsigned long ciphertext_len); | |
174 | asmlinkage void aesni_gcm_finalize(void *ctx, | |
175 | struct gcm_context_data *gdata, | |
176 | u8 *auth_tag, unsigned long auth_tag_len); | |
d764593a | 177 | |
793ff5ff EB |
178 | static const struct aesni_gcm_tfm_s { |
179 | void (*init)(void *ctx, struct gcm_context_data *gdata, u8 *iv, | |
180 | u8 *hash_subkey, const u8 *aad, unsigned long aad_len); | |
181 | void (*enc_update)(void *ctx, struct gcm_context_data *gdata, u8 *out, | |
182 | const u8 *in, unsigned long plaintext_len); | |
183 | void (*dec_update)(void *ctx, struct gcm_context_data *gdata, u8 *out, | |
184 | const u8 *in, unsigned long ciphertext_len); | |
185 | void (*finalize)(void *ctx, struct gcm_context_data *gdata, | |
186 | u8 *auth_tag, unsigned long auth_tag_len); | |
603f8c3b DW |
187 | } *aesni_gcm_tfm; |
188 | ||
793ff5ff | 189 | static const struct aesni_gcm_tfm_s aesni_gcm_tfm_sse = { |
603f8c3b DW |
190 | .init = &aesni_gcm_init, |
191 | .enc_update = &aesni_gcm_enc_update, | |
192 | .dec_update = &aesni_gcm_dec_update, | |
193 | .finalize = &aesni_gcm_finalize, | |
194 | }; | |
195 | ||
d764593a | 196 | #ifdef CONFIG_AS_AVX |
22cddcc7 | 197 | asmlinkage void aes_ctr_enc_128_avx_by8(const u8 *in, u8 *iv, |
198 | void *keys, u8 *out, unsigned int num_bytes); | |
199 | asmlinkage void aes_ctr_enc_192_avx_by8(const u8 *in, u8 *iv, | |
200 | void *keys, u8 *out, unsigned int num_bytes); | |
201 | asmlinkage void aes_ctr_enc_256_avx_by8(const u8 *in, u8 *iv, | |
202 | void *keys, u8 *out, unsigned int num_bytes); | |
d764593a | 203 | /* |
603f8c3b | 204 | * asmlinkage void aesni_gcm_init_avx_gen2() |
d764593a TC |
205 | * gcm_data *my_ctx_data, context data |
206 | * u8 *hash_subkey, the Hash sub key input. Data starts on a 16-byte boundary. | |
207 | */ | |
603f8c3b DW |
208 | asmlinkage void aesni_gcm_init_avx_gen2(void *my_ctx_data, |
209 | struct gcm_context_data *gdata, | |
210 | u8 *iv, | |
211 | u8 *hash_subkey, | |
212 | const u8 *aad, | |
213 | unsigned long aad_len); | |
214 | ||
215 | asmlinkage void aesni_gcm_enc_update_avx_gen2(void *ctx, | |
216 | struct gcm_context_data *gdata, u8 *out, | |
217 | const u8 *in, unsigned long plaintext_len); | |
218 | asmlinkage void aesni_gcm_dec_update_avx_gen2(void *ctx, | |
219 | struct gcm_context_data *gdata, u8 *out, | |
220 | const u8 *in, | |
221 | unsigned long ciphertext_len); | |
222 | asmlinkage void aesni_gcm_finalize_avx_gen2(void *ctx, | |
223 | struct gcm_context_data *gdata, | |
224 | u8 *auth_tag, unsigned long auth_tag_len); | |
d764593a | 225 | |
de85fc46 DW |
226 | asmlinkage void aesni_gcm_enc_avx_gen2(void *ctx, |
227 | struct gcm_context_data *gdata, u8 *out, | |
d764593a TC |
228 | const u8 *in, unsigned long plaintext_len, u8 *iv, |
229 | const u8 *aad, unsigned long aad_len, | |
230 | u8 *auth_tag, unsigned long auth_tag_len); | |
231 | ||
de85fc46 DW |
232 | asmlinkage void aesni_gcm_dec_avx_gen2(void *ctx, |
233 | struct gcm_context_data *gdata, u8 *out, | |
d764593a TC |
234 | const u8 *in, unsigned long ciphertext_len, u8 *iv, |
235 | const u8 *aad, unsigned long aad_len, | |
236 | u8 *auth_tag, unsigned long auth_tag_len); | |
237 | ||
793ff5ff | 238 | static const struct aesni_gcm_tfm_s aesni_gcm_tfm_avx_gen2 = { |
603f8c3b DW |
239 | .init = &aesni_gcm_init_avx_gen2, |
240 | .enc_update = &aesni_gcm_enc_update_avx_gen2, | |
241 | .dec_update = &aesni_gcm_dec_update_avx_gen2, | |
242 | .finalize = &aesni_gcm_finalize_avx_gen2, | |
243 | }; | |
d764593a | 244 | |
d764593a TC |
245 | #endif |
246 | ||
247 | #ifdef CONFIG_AS_AVX2 | |
248 | /* | |
603f8c3b | 249 | * asmlinkage void aesni_gcm_init_avx_gen4() |
d764593a TC |
250 | * gcm_data *my_ctx_data, context data |
251 | * u8 *hash_subkey, the Hash sub key input. Data starts on a 16-byte boundary. | |
252 | */ | |
603f8c3b DW |
253 | asmlinkage void aesni_gcm_init_avx_gen4(void *my_ctx_data, |
254 | struct gcm_context_data *gdata, | |
255 | u8 *iv, | |
256 | u8 *hash_subkey, | |
257 | const u8 *aad, | |
258 | unsigned long aad_len); | |
259 | ||
260 | asmlinkage void aesni_gcm_enc_update_avx_gen4(void *ctx, | |
261 | struct gcm_context_data *gdata, u8 *out, | |
262 | const u8 *in, unsigned long plaintext_len); | |
263 | asmlinkage void aesni_gcm_dec_update_avx_gen4(void *ctx, | |
264 | struct gcm_context_data *gdata, u8 *out, | |
265 | const u8 *in, | |
266 | unsigned long ciphertext_len); | |
267 | asmlinkage void aesni_gcm_finalize_avx_gen4(void *ctx, | |
268 | struct gcm_context_data *gdata, | |
269 | u8 *auth_tag, unsigned long auth_tag_len); | |
d764593a | 270 | |
de85fc46 DW |
271 | asmlinkage void aesni_gcm_enc_avx_gen4(void *ctx, |
272 | struct gcm_context_data *gdata, u8 *out, | |
d764593a TC |
273 | const u8 *in, unsigned long plaintext_len, u8 *iv, |
274 | const u8 *aad, unsigned long aad_len, | |
275 | u8 *auth_tag, unsigned long auth_tag_len); | |
276 | ||
de85fc46 DW |
277 | asmlinkage void aesni_gcm_dec_avx_gen4(void *ctx, |
278 | struct gcm_context_data *gdata, u8 *out, | |
d764593a TC |
279 | const u8 *in, unsigned long ciphertext_len, u8 *iv, |
280 | const u8 *aad, unsigned long aad_len, | |
281 | u8 *auth_tag, unsigned long auth_tag_len); | |
282 | ||
793ff5ff | 283 | static const struct aesni_gcm_tfm_s aesni_gcm_tfm_avx_gen4 = { |
603f8c3b DW |
284 | .init = &aesni_gcm_init_avx_gen4, |
285 | .enc_update = &aesni_gcm_enc_update_avx_gen4, | |
286 | .dec_update = &aesni_gcm_dec_update_avx_gen4, | |
287 | .finalize = &aesni_gcm_finalize_avx_gen4, | |
288 | }; | |
d764593a | 289 | |
d764593a TC |
290 | #endif |
291 | ||
0bd82f5f TS |
292 | static inline struct |
293 | aesni_rfc4106_gcm_ctx *aesni_rfc4106_gcm_ctx_get(struct crypto_aead *tfm) | |
294 | { | |
b7c89d9e HX |
295 | unsigned long align = AESNI_ALIGN; |
296 | ||
297 | if (align <= crypto_tfm_ctx_alignment()) | |
298 | align = 1; | |
299 | return PTR_ALIGN(crypto_aead_ctx(tfm), align); | |
0bd82f5f | 300 | } |
cce2ea8d SD |
301 | |
302 | static inline struct | |
303 | generic_gcmaes_ctx *generic_gcmaes_ctx_get(struct crypto_aead *tfm) | |
304 | { | |
305 | unsigned long align = AESNI_ALIGN; | |
306 | ||
307 | if (align <= crypto_tfm_ctx_alignment()) | |
308 | align = 1; | |
309 | return PTR_ALIGN(crypto_aead_ctx(tfm), align); | |
310 | } | |
559ad0ff | 311 | #endif |
0bd82f5f | 312 | |
54b6a1bd HY |
313 | static inline struct crypto_aes_ctx *aes_ctx(void *raw_ctx) |
314 | { | |
315 | unsigned long addr = (unsigned long)raw_ctx; | |
316 | unsigned long align = AESNI_ALIGN; | |
317 | ||
318 | if (align <= crypto_tfm_ctx_alignment()) | |
319 | align = 1; | |
320 | return (struct crypto_aes_ctx *)ALIGN(addr, align); | |
321 | } | |
322 | ||
323 | static int aes_set_key_common(struct crypto_tfm *tfm, void *raw_ctx, | |
324 | const u8 *in_key, unsigned int key_len) | |
325 | { | |
326 | struct crypto_aes_ctx *ctx = aes_ctx(raw_ctx); | |
327 | u32 *flags = &tfm->crt_flags; | |
328 | int err; | |
329 | ||
330 | if (key_len != AES_KEYSIZE_128 && key_len != AES_KEYSIZE_192 && | |
331 | key_len != AES_KEYSIZE_256) { | |
332 | *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN; | |
333 | return -EINVAL; | |
334 | } | |
335 | ||
13b79b97 | 336 | if (!irq_fpu_usable()) |
54b6a1bd HY |
337 | err = crypto_aes_expand_key(ctx, in_key, key_len); |
338 | else { | |
339 | kernel_fpu_begin(); | |
340 | err = aesni_set_key(ctx, in_key, key_len); | |
341 | kernel_fpu_end(); | |
342 | } | |
343 | ||
344 | return err; | |
345 | } | |
346 | ||
347 | static int aes_set_key(struct crypto_tfm *tfm, const u8 *in_key, | |
348 | unsigned int key_len) | |
349 | { | |
350 | return aes_set_key_common(tfm, crypto_tfm_ctx(tfm), in_key, key_len); | |
351 | } | |
352 | ||
353 | static void aes_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) | |
354 | { | |
355 | struct crypto_aes_ctx *ctx = aes_ctx(crypto_tfm_ctx(tfm)); | |
356 | ||
13b79b97 | 357 | if (!irq_fpu_usable()) |
54b6a1bd HY |
358 | crypto_aes_encrypt_x86(ctx, dst, src); |
359 | else { | |
360 | kernel_fpu_begin(); | |
361 | aesni_enc(ctx, dst, src); | |
362 | kernel_fpu_end(); | |
363 | } | |
364 | } | |
365 | ||
366 | static void aes_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) | |
367 | { | |
368 | struct crypto_aes_ctx *ctx = aes_ctx(crypto_tfm_ctx(tfm)); | |
369 | ||
13b79b97 | 370 | if (!irq_fpu_usable()) |
54b6a1bd HY |
371 | crypto_aes_decrypt_x86(ctx, dst, src); |
372 | else { | |
373 | kernel_fpu_begin(); | |
374 | aesni_dec(ctx, dst, src); | |
375 | kernel_fpu_end(); | |
376 | } | |
377 | } | |
378 | ||
2cf4ac8b HY |
379 | static void __aes_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) |
380 | { | |
381 | struct crypto_aes_ctx *ctx = aes_ctx(crypto_tfm_ctx(tfm)); | |
382 | ||
383 | aesni_enc(ctx, dst, src); | |
384 | } | |
385 | ||
386 | static void __aes_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src) | |
387 | { | |
388 | struct crypto_aes_ctx *ctx = aes_ctx(crypto_tfm_ctx(tfm)); | |
389 | ||
390 | aesni_dec(ctx, dst, src); | |
391 | } | |
392 | ||
85671860 HX |
393 | static int aesni_skcipher_setkey(struct crypto_skcipher *tfm, const u8 *key, |
394 | unsigned int len) | |
395 | { | |
396 | return aes_set_key_common(crypto_skcipher_tfm(tfm), | |
397 | crypto_skcipher_ctx(tfm), key, len); | |
398 | } | |
399 | ||
400 | static int ecb_encrypt(struct skcipher_request *req) | |
54b6a1bd | 401 | { |
85671860 HX |
402 | struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); |
403 | struct crypto_aes_ctx *ctx = aes_ctx(crypto_skcipher_ctx(tfm)); | |
404 | struct skcipher_walk walk; | |
405 | unsigned int nbytes; | |
54b6a1bd HY |
406 | int err; |
407 | ||
85671860 | 408 | err = skcipher_walk_virt(&walk, req, true); |
54b6a1bd HY |
409 | |
410 | kernel_fpu_begin(); | |
411 | while ((nbytes = walk.nbytes)) { | |
412 | aesni_ecb_enc(ctx, walk.dst.virt.addr, walk.src.virt.addr, | |
413 | nbytes & AES_BLOCK_MASK); | |
414 | nbytes &= AES_BLOCK_SIZE - 1; | |
85671860 | 415 | err = skcipher_walk_done(&walk, nbytes); |
54b6a1bd HY |
416 | } |
417 | kernel_fpu_end(); | |
418 | ||
419 | return err; | |
420 | } | |
421 | ||
85671860 | 422 | static int ecb_decrypt(struct skcipher_request *req) |
54b6a1bd | 423 | { |
85671860 HX |
424 | struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); |
425 | struct crypto_aes_ctx *ctx = aes_ctx(crypto_skcipher_ctx(tfm)); | |
426 | struct skcipher_walk walk; | |
427 | unsigned int nbytes; | |
54b6a1bd HY |
428 | int err; |
429 | ||
85671860 | 430 | err = skcipher_walk_virt(&walk, req, true); |
54b6a1bd HY |
431 | |
432 | kernel_fpu_begin(); | |
433 | while ((nbytes = walk.nbytes)) { | |
434 | aesni_ecb_dec(ctx, walk.dst.virt.addr, walk.src.virt.addr, | |
435 | nbytes & AES_BLOCK_MASK); | |
436 | nbytes &= AES_BLOCK_SIZE - 1; | |
85671860 | 437 | err = skcipher_walk_done(&walk, nbytes); |
54b6a1bd HY |
438 | } |
439 | kernel_fpu_end(); | |
440 | ||
441 | return err; | |
442 | } | |
443 | ||
85671860 | 444 | static int cbc_encrypt(struct skcipher_request *req) |
54b6a1bd | 445 | { |
85671860 HX |
446 | struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); |
447 | struct crypto_aes_ctx *ctx = aes_ctx(crypto_skcipher_ctx(tfm)); | |
448 | struct skcipher_walk walk; | |
449 | unsigned int nbytes; | |
54b6a1bd HY |
450 | int err; |
451 | ||
85671860 | 452 | err = skcipher_walk_virt(&walk, req, true); |
54b6a1bd HY |
453 | |
454 | kernel_fpu_begin(); | |
455 | while ((nbytes = walk.nbytes)) { | |
456 | aesni_cbc_enc(ctx, walk.dst.virt.addr, walk.src.virt.addr, | |
457 | nbytes & AES_BLOCK_MASK, walk.iv); | |
458 | nbytes &= AES_BLOCK_SIZE - 1; | |
85671860 | 459 | err = skcipher_walk_done(&walk, nbytes); |
54b6a1bd HY |
460 | } |
461 | kernel_fpu_end(); | |
462 | ||
463 | return err; | |
464 | } | |
465 | ||
85671860 | 466 | static int cbc_decrypt(struct skcipher_request *req) |
54b6a1bd | 467 | { |
85671860 HX |
468 | struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); |
469 | struct crypto_aes_ctx *ctx = aes_ctx(crypto_skcipher_ctx(tfm)); | |
470 | struct skcipher_walk walk; | |
471 | unsigned int nbytes; | |
54b6a1bd HY |
472 | int err; |
473 | ||
85671860 | 474 | err = skcipher_walk_virt(&walk, req, true); |
54b6a1bd HY |
475 | |
476 | kernel_fpu_begin(); | |
477 | while ((nbytes = walk.nbytes)) { | |
478 | aesni_cbc_dec(ctx, walk.dst.virt.addr, walk.src.virt.addr, | |
479 | nbytes & AES_BLOCK_MASK, walk.iv); | |
480 | nbytes &= AES_BLOCK_SIZE - 1; | |
85671860 | 481 | err = skcipher_walk_done(&walk, nbytes); |
54b6a1bd HY |
482 | } |
483 | kernel_fpu_end(); | |
484 | ||
485 | return err; | |
486 | } | |
487 | ||
0d258efb | 488 | #ifdef CONFIG_X86_64 |
12387a46 | 489 | static void ctr_crypt_final(struct crypto_aes_ctx *ctx, |
85671860 | 490 | struct skcipher_walk *walk) |
12387a46 HY |
491 | { |
492 | u8 *ctrblk = walk->iv; | |
493 | u8 keystream[AES_BLOCK_SIZE]; | |
494 | u8 *src = walk->src.virt.addr; | |
495 | u8 *dst = walk->dst.virt.addr; | |
496 | unsigned int nbytes = walk->nbytes; | |
497 | ||
498 | aesni_enc(ctx, keystream, ctrblk); | |
45fe93df AB |
499 | crypto_xor_cpy(dst, keystream, src, nbytes); |
500 | ||
12387a46 HY |
501 | crypto_inc(ctrblk, AES_BLOCK_SIZE); |
502 | } | |
503 | ||
5cfed7b3 | 504 | #ifdef CONFIG_AS_AVX |
22cddcc7 | 505 | static void aesni_ctr_enc_avx_tfm(struct crypto_aes_ctx *ctx, u8 *out, |
506 | const u8 *in, unsigned int len, u8 *iv) | |
507 | { | |
508 | /* | |
509 | * based on key length, override with the by8 version | |
510 | * of ctr mode encryption/decryption for improved performance | |
511 | * aes_set_key_common() ensures that key length is one of | |
512 | * {128,192,256} | |
513 | */ | |
514 | if (ctx->key_length == AES_KEYSIZE_128) | |
515 | aes_ctr_enc_128_avx_by8(in, iv, (void *)ctx, out, len); | |
516 | else if (ctx->key_length == AES_KEYSIZE_192) | |
517 | aes_ctr_enc_192_avx_by8(in, iv, (void *)ctx, out, len); | |
518 | else | |
519 | aes_ctr_enc_256_avx_by8(in, iv, (void *)ctx, out, len); | |
520 | } | |
521 | #endif | |
522 | ||
85671860 | 523 | static int ctr_crypt(struct skcipher_request *req) |
12387a46 | 524 | { |
85671860 HX |
525 | struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); |
526 | struct crypto_aes_ctx *ctx = aes_ctx(crypto_skcipher_ctx(tfm)); | |
527 | struct skcipher_walk walk; | |
528 | unsigned int nbytes; | |
12387a46 HY |
529 | int err; |
530 | ||
85671860 | 531 | err = skcipher_walk_virt(&walk, req, true); |
12387a46 HY |
532 | |
533 | kernel_fpu_begin(); | |
534 | while ((nbytes = walk.nbytes) >= AES_BLOCK_SIZE) { | |
22cddcc7 | 535 | aesni_ctr_enc_tfm(ctx, walk.dst.virt.addr, walk.src.virt.addr, |
e31ac32d | 536 | nbytes & AES_BLOCK_MASK, walk.iv); |
12387a46 | 537 | nbytes &= AES_BLOCK_SIZE - 1; |
85671860 | 538 | err = skcipher_walk_done(&walk, nbytes); |
12387a46 HY |
539 | } |
540 | if (walk.nbytes) { | |
541 | ctr_crypt_final(ctx, &walk); | |
85671860 | 542 | err = skcipher_walk_done(&walk, 0); |
12387a46 HY |
543 | } |
544 | kernel_fpu_end(); | |
545 | ||
546 | return err; | |
547 | } | |
023af608 | 548 | |
85671860 | 549 | static int xts_aesni_setkey(struct crypto_skcipher *tfm, const u8 *key, |
023af608 JK |
550 | unsigned int keylen) |
551 | { | |
85671860 | 552 | struct aesni_xts_ctx *ctx = crypto_skcipher_ctx(tfm); |
023af608 JK |
553 | int err; |
554 | ||
85671860 | 555 | err = xts_verify_key(tfm, key, keylen); |
023af608 JK |
556 | if (err) |
557 | return err; | |
558 | ||
85671860 | 559 | keylen /= 2; |
023af608 JK |
560 | |
561 | /* first half of xts-key is for crypt */ | |
85671860 HX |
562 | err = aes_set_key_common(crypto_skcipher_tfm(tfm), ctx->raw_crypt_ctx, |
563 | key, keylen); | |
023af608 JK |
564 | if (err) |
565 | return err; | |
566 | ||
567 | /* second half of xts-key is for tweak */ | |
85671860 HX |
568 | return aes_set_key_common(crypto_skcipher_tfm(tfm), ctx->raw_tweak_ctx, |
569 | key + keylen, keylen); | |
023af608 JK |
570 | } |
571 | ||
572 | ||
32bec973 JK |
573 | static void aesni_xts_tweak(void *ctx, u8 *out, const u8 *in) |
574 | { | |
575 | aesni_enc(ctx, out, in); | |
576 | } | |
577 | ||
c456a9cd JK |
578 | static void aesni_xts_enc(void *ctx, u128 *dst, const u128 *src, le128 *iv) |
579 | { | |
580 | glue_xts_crypt_128bit_one(ctx, dst, src, iv, GLUE_FUNC_CAST(aesni_enc)); | |
581 | } | |
582 | ||
583 | static void aesni_xts_dec(void *ctx, u128 *dst, const u128 *src, le128 *iv) | |
584 | { | |
585 | glue_xts_crypt_128bit_one(ctx, dst, src, iv, GLUE_FUNC_CAST(aesni_dec)); | |
586 | } | |
587 | ||
588 | static void aesni_xts_enc8(void *ctx, u128 *dst, const u128 *src, le128 *iv) | |
589 | { | |
590 | aesni_xts_crypt8(ctx, (u8 *)dst, (const u8 *)src, true, (u8 *)iv); | |
591 | } | |
592 | ||
593 | static void aesni_xts_dec8(void *ctx, u128 *dst, const u128 *src, le128 *iv) | |
594 | { | |
595 | aesni_xts_crypt8(ctx, (u8 *)dst, (const u8 *)src, false, (u8 *)iv); | |
596 | } | |
597 | ||
598 | static const struct common_glue_ctx aesni_enc_xts = { | |
599 | .num_funcs = 2, | |
600 | .fpu_blocks_limit = 1, | |
601 | ||
602 | .funcs = { { | |
603 | .num_blocks = 8, | |
604 | .fn_u = { .xts = GLUE_XTS_FUNC_CAST(aesni_xts_enc8) } | |
605 | }, { | |
606 | .num_blocks = 1, | |
607 | .fn_u = { .xts = GLUE_XTS_FUNC_CAST(aesni_xts_enc) } | |
608 | } } | |
609 | }; | |
610 | ||
611 | static const struct common_glue_ctx aesni_dec_xts = { | |
612 | .num_funcs = 2, | |
613 | .fpu_blocks_limit = 1, | |
614 | ||
615 | .funcs = { { | |
616 | .num_blocks = 8, | |
617 | .fn_u = { .xts = GLUE_XTS_FUNC_CAST(aesni_xts_dec8) } | |
618 | }, { | |
619 | .num_blocks = 1, | |
620 | .fn_u = { .xts = GLUE_XTS_FUNC_CAST(aesni_xts_dec) } | |
621 | } } | |
622 | }; | |
623 | ||
85671860 | 624 | static int xts_encrypt(struct skcipher_request *req) |
c456a9cd | 625 | { |
85671860 HX |
626 | struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); |
627 | struct aesni_xts_ctx *ctx = crypto_skcipher_ctx(tfm); | |
c456a9cd | 628 | |
85671860 HX |
629 | return glue_xts_req_128bit(&aesni_enc_xts, req, |
630 | XTS_TWEAK_CAST(aesni_xts_tweak), | |
631 | aes_ctx(ctx->raw_tweak_ctx), | |
632 | aes_ctx(ctx->raw_crypt_ctx)); | |
c456a9cd JK |
633 | } |
634 | ||
85671860 | 635 | static int xts_decrypt(struct skcipher_request *req) |
c456a9cd | 636 | { |
85671860 HX |
637 | struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); |
638 | struct aesni_xts_ctx *ctx = crypto_skcipher_ctx(tfm); | |
023af608 | 639 | |
85671860 HX |
640 | return glue_xts_req_128bit(&aesni_dec_xts, req, |
641 | XTS_TWEAK_CAST(aesni_xts_tweak), | |
642 | aes_ctx(ctx->raw_tweak_ctx), | |
643 | aes_ctx(ctx->raw_crypt_ctx)); | |
2cf4ac8b | 644 | } |
2cf4ac8b | 645 | |
af05b300 | 646 | static int rfc4106_init(struct crypto_aead *aead) |
0bd82f5f TS |
647 | { |
648 | struct cryptd_aead *cryptd_tfm; | |
af05b300 HX |
649 | struct cryptd_aead **ctx = crypto_aead_ctx(aead); |
650 | ||
eabdc320 SM |
651 | cryptd_tfm = cryptd_alloc_aead("__driver-gcm-aes-aesni", |
652 | CRYPTO_ALG_INTERNAL, | |
653 | CRYPTO_ALG_INTERNAL); | |
0bd82f5f TS |
654 | if (IS_ERR(cryptd_tfm)) |
655 | return PTR_ERR(cryptd_tfm); | |
60af520c | 656 | |
af05b300 | 657 | *ctx = cryptd_tfm; |
e9b8d2c2 | 658 | crypto_aead_set_reqsize(aead, crypto_aead_reqsize(&cryptd_tfm->base)); |
0bd82f5f TS |
659 | return 0; |
660 | } | |
661 | ||
af05b300 | 662 | static void rfc4106_exit(struct crypto_aead *aead) |
0bd82f5f | 663 | { |
af05b300 HX |
664 | struct cryptd_aead **ctx = crypto_aead_ctx(aead); |
665 | ||
666 | cryptd_free_aead(*ctx); | |
0bd82f5f TS |
667 | } |
668 | ||
0bd82f5f TS |
669 | static int |
670 | rfc4106_set_hash_subkey(u8 *hash_subkey, const u8 *key, unsigned int key_len) | |
671 | { | |
02fa472a HX |
672 | struct crypto_cipher *tfm; |
673 | int ret; | |
0bd82f5f | 674 | |
02fa472a HX |
675 | tfm = crypto_alloc_cipher("aes", 0, 0); |
676 | if (IS_ERR(tfm)) | |
677 | return PTR_ERR(tfm); | |
0bd82f5f | 678 | |
02fa472a | 679 | ret = crypto_cipher_setkey(tfm, key, key_len); |
7efd95f6 | 680 | if (ret) |
02fa472a | 681 | goto out_free_cipher; |
0bd82f5f TS |
682 | |
683 | /* Clear the data in the hash sub key container to zero.*/ | |
684 | /* We want to cipher all zeros to create the hash sub key. */ | |
685 | memset(hash_subkey, 0, RFC4106_HASH_SUBKEY_SIZE); | |
686 | ||
02fa472a HX |
687 | crypto_cipher_encrypt_one(tfm, hash_subkey, hash_subkey); |
688 | ||
689 | out_free_cipher: | |
690 | crypto_free_cipher(tfm); | |
0bd82f5f TS |
691 | return ret; |
692 | } | |
693 | ||
81e397d9 TS |
694 | static int common_rfc4106_set_key(struct crypto_aead *aead, const u8 *key, |
695 | unsigned int key_len) | |
0bd82f5f | 696 | { |
81e397d9 | 697 | struct aesni_rfc4106_gcm_ctx *ctx = aesni_rfc4106_gcm_ctx_get(aead); |
0bd82f5f TS |
698 | |
699 | if (key_len < 4) { | |
b7c89d9e | 700 | crypto_aead_set_flags(aead, CRYPTO_TFM_RES_BAD_KEY_LEN); |
0bd82f5f TS |
701 | return -EINVAL; |
702 | } | |
703 | /*Account for 4 byte nonce at the end.*/ | |
704 | key_len -= 4; | |
0bd82f5f TS |
705 | |
706 | memcpy(ctx->nonce, key + key_len, sizeof(ctx->nonce)); | |
0bd82f5f | 707 | |
b7c89d9e HX |
708 | return aes_set_key_common(crypto_aead_tfm(aead), |
709 | &ctx->aes_key_expanded, key, key_len) ?: | |
710 | rfc4106_set_hash_subkey(ctx->hash_subkey, key, key_len); | |
0bd82f5f TS |
711 | } |
712 | ||
fc8517bf SD |
713 | static int gcmaes_wrapper_set_key(struct crypto_aead *parent, const u8 *key, |
714 | unsigned int key_len) | |
0bd82f5f | 715 | { |
af05b300 HX |
716 | struct cryptd_aead **ctx = crypto_aead_ctx(parent); |
717 | struct cryptd_aead *cryptd_tfm = *ctx; | |
0bd82f5f | 718 | |
af05b300 | 719 | return crypto_aead_setkey(&cryptd_tfm->base, key, key_len); |
81e397d9 TS |
720 | } |
721 | ||
722 | static int common_rfc4106_set_authsize(struct crypto_aead *aead, | |
723 | unsigned int authsize) | |
724 | { | |
0bd82f5f TS |
725 | switch (authsize) { |
726 | case 8: | |
727 | case 12: | |
728 | case 16: | |
729 | break; | |
730 | default: | |
731 | return -EINVAL; | |
732 | } | |
b7c89d9e | 733 | |
0bd82f5f TS |
734 | return 0; |
735 | } | |
736 | ||
81e397d9 TS |
737 | /* This is the Integrity Check Value (aka the authentication tag length and can |
738 | * be 8, 12 or 16 bytes long. */ | |
fc8517bf SD |
739 | static int gcmaes_wrapper_set_authsize(struct crypto_aead *parent, |
740 | unsigned int authsize) | |
0bd82f5f | 741 | { |
af05b300 HX |
742 | struct cryptd_aead **ctx = crypto_aead_ctx(parent); |
743 | struct cryptd_aead *cryptd_tfm = *ctx; | |
0bd82f5f | 744 | |
af05b300 | 745 | return crypto_aead_setauthsize(&cryptd_tfm->base, authsize); |
0bd82f5f TS |
746 | } |
747 | ||
cce2ea8d SD |
748 | static int generic_gcmaes_set_authsize(struct crypto_aead *tfm, |
749 | unsigned int authsize) | |
750 | { | |
751 | switch (authsize) { | |
752 | case 4: | |
753 | case 8: | |
754 | case 12: | |
755 | case 13: | |
756 | case 14: | |
757 | case 15: | |
758 | case 16: | |
759 | break; | |
760 | default: | |
761 | return -EINVAL; | |
762 | } | |
763 | ||
764 | return 0; | |
765 | } | |
766 | ||
e8455207 DW |
767 | static int gcmaes_crypt_by_sg(bool enc, struct aead_request *req, |
768 | unsigned int assoclen, u8 *hash_subkey, | |
769 | u8 *iv, void *aes_ctx) | |
770 | { | |
771 | struct crypto_aead *tfm = crypto_aead_reqtfm(req); | |
772 | unsigned long auth_tag_len = crypto_aead_authsize(tfm); | |
793ff5ff | 773 | const struct aesni_gcm_tfm_s *gcm_tfm = aesni_gcm_tfm; |
e8455207 DW |
774 | struct gcm_context_data data AESNI_ALIGN_ATTR; |
775 | struct scatter_walk dst_sg_walk = {}; | |
776 | unsigned long left = req->cryptlen; | |
777 | unsigned long len, srclen, dstlen; | |
778 | struct scatter_walk assoc_sg_walk; | |
779 | struct scatter_walk src_sg_walk; | |
780 | struct scatterlist src_start[2]; | |
781 | struct scatterlist dst_start[2]; | |
782 | struct scatterlist *src_sg; | |
783 | struct scatterlist *dst_sg; | |
784 | u8 *src, *dst, *assoc; | |
785 | u8 *assocmem = NULL; | |
786 | u8 authTag[16]; | |
787 | ||
788 | if (!enc) | |
789 | left -= auth_tag_len; | |
790 | ||
603f8c3b DW |
791 | #ifdef CONFIG_AS_AVX2 |
792 | if (left < AVX_GEN4_OPTSIZE && gcm_tfm == &aesni_gcm_tfm_avx_gen4) | |
793 | gcm_tfm = &aesni_gcm_tfm_avx_gen2; | |
794 | #endif | |
795 | #ifdef CONFIG_AS_AVX | |
796 | if (left < AVX_GEN2_OPTSIZE && gcm_tfm == &aesni_gcm_tfm_avx_gen2) | |
797 | gcm_tfm = &aesni_gcm_tfm_sse; | |
798 | #endif | |
799 | ||
e8455207 DW |
800 | /* Linearize assoc, if not already linear */ |
801 | if (req->src->length >= assoclen && req->src->length && | |
802 | (!PageHighMem(sg_page(req->src)) || | |
a7888481 | 803 | req->src->offset + req->src->length <= PAGE_SIZE)) { |
e8455207 DW |
804 | scatterwalk_start(&assoc_sg_walk, req->src); |
805 | assoc = scatterwalk_map(&assoc_sg_walk); | |
806 | } else { | |
807 | /* assoc can be any length, so must be on heap */ | |
808 | assocmem = kmalloc(assoclen, GFP_ATOMIC); | |
809 | if (unlikely(!assocmem)) | |
810 | return -ENOMEM; | |
811 | assoc = assocmem; | |
812 | ||
813 | scatterwalk_map_and_copy(assoc, req->src, 0, assoclen, 0); | |
814 | } | |
815 | ||
3af34963 EB |
816 | if (left) { |
817 | src_sg = scatterwalk_ffwd(src_start, req->src, req->assoclen); | |
818 | scatterwalk_start(&src_sg_walk, src_sg); | |
819 | if (req->src != req->dst) { | |
820 | dst_sg = scatterwalk_ffwd(dst_start, req->dst, | |
821 | req->assoclen); | |
822 | scatterwalk_start(&dst_sg_walk, dst_sg); | |
823 | } | |
e8455207 DW |
824 | } |
825 | ||
826 | kernel_fpu_begin(); | |
603f8c3b | 827 | gcm_tfm->init(aes_ctx, &data, iv, |
e8455207 DW |
828 | hash_subkey, assoc, assoclen); |
829 | if (req->src != req->dst) { | |
830 | while (left) { | |
831 | src = scatterwalk_map(&src_sg_walk); | |
832 | dst = scatterwalk_map(&dst_sg_walk); | |
833 | srclen = scatterwalk_clamp(&src_sg_walk, left); | |
834 | dstlen = scatterwalk_clamp(&dst_sg_walk, left); | |
835 | len = min(srclen, dstlen); | |
836 | if (len) { | |
837 | if (enc) | |
603f8c3b | 838 | gcm_tfm->enc_update(aes_ctx, &data, |
e8455207 DW |
839 | dst, src, len); |
840 | else | |
603f8c3b | 841 | gcm_tfm->dec_update(aes_ctx, &data, |
e8455207 DW |
842 | dst, src, len); |
843 | } | |
844 | left -= len; | |
845 | ||
846 | scatterwalk_unmap(src); | |
847 | scatterwalk_unmap(dst); | |
848 | scatterwalk_advance(&src_sg_walk, len); | |
849 | scatterwalk_advance(&dst_sg_walk, len); | |
850 | scatterwalk_done(&src_sg_walk, 0, left); | |
851 | scatterwalk_done(&dst_sg_walk, 1, left); | |
852 | } | |
853 | } else { | |
854 | while (left) { | |
855 | dst = src = scatterwalk_map(&src_sg_walk); | |
856 | len = scatterwalk_clamp(&src_sg_walk, left); | |
857 | if (len) { | |
858 | if (enc) | |
603f8c3b | 859 | gcm_tfm->enc_update(aes_ctx, &data, |
e8455207 DW |
860 | src, src, len); |
861 | else | |
603f8c3b | 862 | gcm_tfm->dec_update(aes_ctx, &data, |
e8455207 DW |
863 | src, src, len); |
864 | } | |
865 | left -= len; | |
866 | scatterwalk_unmap(src); | |
867 | scatterwalk_advance(&src_sg_walk, len); | |
868 | scatterwalk_done(&src_sg_walk, 1, left); | |
869 | } | |
870 | } | |
603f8c3b | 871 | gcm_tfm->finalize(aes_ctx, &data, authTag, auth_tag_len); |
e8455207 DW |
872 | kernel_fpu_end(); |
873 | ||
874 | if (!assocmem) | |
875 | scatterwalk_unmap(assoc); | |
876 | else | |
877 | kfree(assocmem); | |
878 | ||
879 | if (!enc) { | |
880 | u8 authTagMsg[16]; | |
881 | ||
882 | /* Copy out original authTag */ | |
883 | scatterwalk_map_and_copy(authTagMsg, req->src, | |
884 | req->assoclen + req->cryptlen - | |
885 | auth_tag_len, | |
886 | auth_tag_len, 0); | |
887 | ||
888 | /* Compare generated tag with passed in tag. */ | |
889 | return crypto_memneq(authTagMsg, authTag, auth_tag_len) ? | |
890 | -EBADMSG : 0; | |
891 | } | |
892 | ||
893 | /* Copy in the authTag */ | |
894 | scatterwalk_map_and_copy(authTag, req->dst, | |
895 | req->assoclen + req->cryptlen, | |
896 | auth_tag_len, 1); | |
897 | ||
898 | return 0; | |
899 | } | |
900 | ||
cce2ea8d SD |
901 | static int gcmaes_encrypt(struct aead_request *req, unsigned int assoclen, |
902 | u8 *hash_subkey, u8 *iv, void *aes_ctx) | |
0bd82f5f | 903 | { |
603f8c3b DW |
904 | return gcmaes_crypt_by_sg(true, req, assoclen, hash_subkey, iv, |
905 | aes_ctx); | |
0bd82f5f TS |
906 | } |
907 | ||
cce2ea8d SD |
908 | static int gcmaes_decrypt(struct aead_request *req, unsigned int assoclen, |
909 | u8 *hash_subkey, u8 *iv, void *aes_ctx) | |
0bd82f5f | 910 | { |
603f8c3b DW |
911 | return gcmaes_crypt_by_sg(false, req, assoclen, hash_subkey, iv, |
912 | aes_ctx); | |
cce2ea8d SD |
913 | } |
914 | ||
915 | static int helper_rfc4106_encrypt(struct aead_request *req) | |
916 | { | |
917 | struct crypto_aead *tfm = crypto_aead_reqtfm(req); | |
918 | struct aesni_rfc4106_gcm_ctx *ctx = aesni_rfc4106_gcm_ctx_get(tfm); | |
919 | void *aes_ctx = &(ctx->aes_key_expanded); | |
920 | u8 iv[16] __attribute__ ((__aligned__(AESNI_ALIGN))); | |
921 | unsigned int i; | |
922 | __be32 counter = cpu_to_be32(1); | |
923 | ||
924 | /* Assuming we are supporting rfc4106 64-bit extended */ | |
925 | /* sequence numbers We need to have the AAD length equal */ | |
926 | /* to 16 or 20 bytes */ | |
927 | if (unlikely(req->assoclen != 16 && req->assoclen != 20)) | |
928 | return -EINVAL; | |
929 | ||
930 | /* IV below built */ | |
931 | for (i = 0; i < 4; i++) | |
932 | *(iv+i) = ctx->nonce[i]; | |
933 | for (i = 0; i < 8; i++) | |
934 | *(iv+4+i) = req->iv[i]; | |
935 | *((__be32 *)(iv+12)) = counter; | |
936 | ||
937 | return gcmaes_encrypt(req, req->assoclen - 8, ctx->hash_subkey, iv, | |
938 | aes_ctx); | |
939 | } | |
940 | ||
941 | static int helper_rfc4106_decrypt(struct aead_request *req) | |
942 | { | |
943 | __be32 counter = cpu_to_be32(1); | |
944 | struct crypto_aead *tfm = crypto_aead_reqtfm(req); | |
945 | struct aesni_rfc4106_gcm_ctx *ctx = aesni_rfc4106_gcm_ctx_get(tfm); | |
946 | void *aes_ctx = &(ctx->aes_key_expanded); | |
947 | u8 iv[16] __attribute__ ((__aligned__(AESNI_ALIGN))); | |
948 | unsigned int i; | |
949 | ||
950 | if (unlikely(req->assoclen != 16 && req->assoclen != 20)) | |
951 | return -EINVAL; | |
952 | ||
953 | /* Assuming we are supporting rfc4106 64-bit extended */ | |
954 | /* sequence numbers We need to have the AAD length */ | |
955 | /* equal to 16 or 20 bytes */ | |
956 | ||
957 | /* IV below built */ | |
958 | for (i = 0; i < 4; i++) | |
959 | *(iv+i) = ctx->nonce[i]; | |
960 | for (i = 0; i < 8; i++) | |
961 | *(iv+4+i) = req->iv[i]; | |
962 | *((__be32 *)(iv+12)) = counter; | |
963 | ||
964 | return gcmaes_decrypt(req, req->assoclen - 8, ctx->hash_subkey, iv, | |
965 | aes_ctx); | |
0bd82f5f | 966 | } |
81e397d9 | 967 | |
fc8517bf | 968 | static int gcmaes_wrapper_encrypt(struct aead_request *req) |
81e397d9 | 969 | { |
81e397d9 | 970 | struct crypto_aead *tfm = crypto_aead_reqtfm(req); |
af05b300 HX |
971 | struct cryptd_aead **ctx = crypto_aead_ctx(tfm); |
972 | struct cryptd_aead *cryptd_tfm = *ctx; | |
81e397d9 | 973 | |
38b2f68b HX |
974 | tfm = &cryptd_tfm->base; |
975 | if (irq_fpu_usable() && (!in_atomic() || | |
976 | !cryptd_aead_queued(cryptd_tfm))) | |
977 | tfm = cryptd_aead_child(cryptd_tfm); | |
978 | ||
979 | aead_request_set_tfm(req, tfm); | |
81e397d9 | 980 | |
e9b8d2c2 | 981 | return crypto_aead_encrypt(req); |
81e397d9 TS |
982 | } |
983 | ||
fc8517bf | 984 | static int gcmaes_wrapper_decrypt(struct aead_request *req) |
81e397d9 | 985 | { |
81e397d9 | 986 | struct crypto_aead *tfm = crypto_aead_reqtfm(req); |
af05b300 HX |
987 | struct cryptd_aead **ctx = crypto_aead_ctx(tfm); |
988 | struct cryptd_aead *cryptd_tfm = *ctx; | |
81e397d9 | 989 | |
38b2f68b HX |
990 | tfm = &cryptd_tfm->base; |
991 | if (irq_fpu_usable() && (!in_atomic() || | |
992 | !cryptd_aead_queued(cryptd_tfm))) | |
993 | tfm = cryptd_aead_child(cryptd_tfm); | |
994 | ||
995 | aead_request_set_tfm(req, tfm); | |
81e397d9 | 996 | |
e9b8d2c2 | 997 | return crypto_aead_decrypt(req); |
81e397d9 | 998 | } |
fa46ccb8 | 999 | #endif |
0bd82f5f | 1000 | |
fa46ccb8 JK |
1001 | static struct crypto_alg aesni_algs[] = { { |
1002 | .cra_name = "aes", | |
1003 | .cra_driver_name = "aes-aesni", | |
1004 | .cra_priority = 300, | |
1005 | .cra_flags = CRYPTO_ALG_TYPE_CIPHER, | |
1006 | .cra_blocksize = AES_BLOCK_SIZE, | |
85671860 | 1007 | .cra_ctxsize = CRYPTO_AES_CTX_SIZE, |
fa46ccb8 JK |
1008 | .cra_module = THIS_MODULE, |
1009 | .cra_u = { | |
1010 | .cipher = { | |
1011 | .cia_min_keysize = AES_MIN_KEY_SIZE, | |
1012 | .cia_max_keysize = AES_MAX_KEY_SIZE, | |
1013 | .cia_setkey = aes_set_key, | |
1014 | .cia_encrypt = aes_encrypt, | |
1015 | .cia_decrypt = aes_decrypt | |
1016 | } | |
1017 | } | |
1018 | }, { | |
85671860 HX |
1019 | .cra_name = "__aes", |
1020 | .cra_driver_name = "__aes-aesni", | |
1021 | .cra_priority = 300, | |
eabdc320 | 1022 | .cra_flags = CRYPTO_ALG_TYPE_CIPHER | CRYPTO_ALG_INTERNAL, |
fa46ccb8 | 1023 | .cra_blocksize = AES_BLOCK_SIZE, |
85671860 | 1024 | .cra_ctxsize = CRYPTO_AES_CTX_SIZE, |
fa46ccb8 JK |
1025 | .cra_module = THIS_MODULE, |
1026 | .cra_u = { | |
1027 | .cipher = { | |
1028 | .cia_min_keysize = AES_MIN_KEY_SIZE, | |
1029 | .cia_max_keysize = AES_MAX_KEY_SIZE, | |
1030 | .cia_setkey = aes_set_key, | |
1031 | .cia_encrypt = __aes_encrypt, | |
1032 | .cia_decrypt = __aes_decrypt | |
1033 | } | |
1034 | } | |
85671860 HX |
1035 | } }; |
1036 | ||
1037 | static struct skcipher_alg aesni_skciphers[] = { | |
1038 | { | |
1039 | .base = { | |
1040 | .cra_name = "__ecb(aes)", | |
1041 | .cra_driver_name = "__ecb-aes-aesni", | |
1042 | .cra_priority = 400, | |
1043 | .cra_flags = CRYPTO_ALG_INTERNAL, | |
1044 | .cra_blocksize = AES_BLOCK_SIZE, | |
1045 | .cra_ctxsize = CRYPTO_AES_CTX_SIZE, | |
1046 | .cra_module = THIS_MODULE, | |
fa46ccb8 | 1047 | }, |
85671860 HX |
1048 | .min_keysize = AES_MIN_KEY_SIZE, |
1049 | .max_keysize = AES_MAX_KEY_SIZE, | |
1050 | .setkey = aesni_skcipher_setkey, | |
1051 | .encrypt = ecb_encrypt, | |
1052 | .decrypt = ecb_decrypt, | |
1053 | }, { | |
1054 | .base = { | |
1055 | .cra_name = "__cbc(aes)", | |
1056 | .cra_driver_name = "__cbc-aes-aesni", | |
1057 | .cra_priority = 400, | |
1058 | .cra_flags = CRYPTO_ALG_INTERNAL, | |
1059 | .cra_blocksize = AES_BLOCK_SIZE, | |
1060 | .cra_ctxsize = CRYPTO_AES_CTX_SIZE, | |
1061 | .cra_module = THIS_MODULE, | |
fa46ccb8 | 1062 | }, |
85671860 HX |
1063 | .min_keysize = AES_MIN_KEY_SIZE, |
1064 | .max_keysize = AES_MAX_KEY_SIZE, | |
1065 | .ivsize = AES_BLOCK_SIZE, | |
1066 | .setkey = aesni_skcipher_setkey, | |
1067 | .encrypt = cbc_encrypt, | |
1068 | .decrypt = cbc_decrypt, | |
fa46ccb8 | 1069 | #ifdef CONFIG_X86_64 |
85671860 HX |
1070 | }, { |
1071 | .base = { | |
1072 | .cra_name = "__ctr(aes)", | |
1073 | .cra_driver_name = "__ctr-aes-aesni", | |
1074 | .cra_priority = 400, | |
1075 | .cra_flags = CRYPTO_ALG_INTERNAL, | |
1076 | .cra_blocksize = 1, | |
1077 | .cra_ctxsize = CRYPTO_AES_CTX_SIZE, | |
1078 | .cra_module = THIS_MODULE, | |
fa46ccb8 | 1079 | }, |
85671860 HX |
1080 | .min_keysize = AES_MIN_KEY_SIZE, |
1081 | .max_keysize = AES_MAX_KEY_SIZE, | |
1082 | .ivsize = AES_BLOCK_SIZE, | |
1083 | .chunksize = AES_BLOCK_SIZE, | |
1084 | .setkey = aesni_skcipher_setkey, | |
1085 | .encrypt = ctr_crypt, | |
1086 | .decrypt = ctr_crypt, | |
1087 | }, { | |
1088 | .base = { | |
1089 | .cra_name = "__xts(aes)", | |
1090 | .cra_driver_name = "__xts-aes-aesni", | |
1091 | .cra_priority = 401, | |
1092 | .cra_flags = CRYPTO_ALG_INTERNAL, | |
1093 | .cra_blocksize = AES_BLOCK_SIZE, | |
1094 | .cra_ctxsize = XTS_AES_CTX_SIZE, | |
1095 | .cra_module = THIS_MODULE, | |
fa46ccb8 | 1096 | }, |
85671860 HX |
1097 | .min_keysize = 2 * AES_MIN_KEY_SIZE, |
1098 | .max_keysize = 2 * AES_MAX_KEY_SIZE, | |
1099 | .ivsize = AES_BLOCK_SIZE, | |
1100 | .setkey = xts_aesni_setkey, | |
1101 | .encrypt = xts_encrypt, | |
1102 | .decrypt = xts_decrypt, | |
fa46ccb8 | 1103 | #endif |
85671860 HX |
1104 | } |
1105 | }; | |
1106 | ||
1c9fa294 | 1107 | static |
85671860 HX |
1108 | struct simd_skcipher_alg *aesni_simd_skciphers[ARRAY_SIZE(aesni_skciphers)]; |
1109 | ||
af05b300 | 1110 | #ifdef CONFIG_X86_64 |
cce2ea8d SD |
1111 | static int generic_gcmaes_set_key(struct crypto_aead *aead, const u8 *key, |
1112 | unsigned int key_len) | |
1113 | { | |
1114 | struct generic_gcmaes_ctx *ctx = generic_gcmaes_ctx_get(aead); | |
1115 | ||
1116 | return aes_set_key_common(crypto_aead_tfm(aead), | |
1117 | &ctx->aes_key_expanded, key, key_len) ?: | |
1118 | rfc4106_set_hash_subkey(ctx->hash_subkey, key, key_len); | |
1119 | } | |
1120 | ||
1121 | static int generic_gcmaes_encrypt(struct aead_request *req) | |
1122 | { | |
1123 | struct crypto_aead *tfm = crypto_aead_reqtfm(req); | |
1124 | struct generic_gcmaes_ctx *ctx = generic_gcmaes_ctx_get(tfm); | |
1125 | void *aes_ctx = &(ctx->aes_key_expanded); | |
1126 | u8 iv[16] __attribute__ ((__aligned__(AESNI_ALIGN))); | |
1127 | __be32 counter = cpu_to_be32(1); | |
1128 | ||
1129 | memcpy(iv, req->iv, 12); | |
1130 | *((__be32 *)(iv+12)) = counter; | |
1131 | ||
1132 | return gcmaes_encrypt(req, req->assoclen, ctx->hash_subkey, iv, | |
1133 | aes_ctx); | |
1134 | } | |
1135 | ||
1136 | static int generic_gcmaes_decrypt(struct aead_request *req) | |
1137 | { | |
1138 | __be32 counter = cpu_to_be32(1); | |
1139 | struct crypto_aead *tfm = crypto_aead_reqtfm(req); | |
106840c4 | 1140 | struct generic_gcmaes_ctx *ctx = generic_gcmaes_ctx_get(tfm); |
cce2ea8d SD |
1141 | void *aes_ctx = &(ctx->aes_key_expanded); |
1142 | u8 iv[16] __attribute__ ((__aligned__(AESNI_ALIGN))); | |
1143 | ||
1144 | memcpy(iv, req->iv, 12); | |
1145 | *((__be32 *)(iv+12)) = counter; | |
1146 | ||
1147 | return gcmaes_decrypt(req, req->assoclen, ctx->hash_subkey, iv, | |
1148 | aes_ctx); | |
1149 | } | |
1150 | ||
fc8517bf SD |
1151 | static int generic_gcmaes_init(struct crypto_aead *aead) |
1152 | { | |
1153 | struct cryptd_aead *cryptd_tfm; | |
1154 | struct cryptd_aead **ctx = crypto_aead_ctx(aead); | |
1155 | ||
1156 | cryptd_tfm = cryptd_alloc_aead("__driver-generic-gcm-aes-aesni", | |
1157 | CRYPTO_ALG_INTERNAL, | |
1158 | CRYPTO_ALG_INTERNAL); | |
1159 | if (IS_ERR(cryptd_tfm)) | |
1160 | return PTR_ERR(cryptd_tfm); | |
1161 | ||
1162 | *ctx = cryptd_tfm; | |
1163 | crypto_aead_set_reqsize(aead, crypto_aead_reqsize(&cryptd_tfm->base)); | |
1164 | ||
1165 | return 0; | |
1166 | } | |
1167 | ||
1168 | static void generic_gcmaes_exit(struct crypto_aead *aead) | |
1169 | { | |
1170 | struct cryptd_aead **ctx = crypto_aead_ctx(aead); | |
1171 | ||
1172 | cryptd_free_aead(*ctx); | |
1173 | } | |
1174 | ||
af05b300 | 1175 | static struct aead_alg aesni_aead_algs[] = { { |
b7c89d9e HX |
1176 | .setkey = common_rfc4106_set_key, |
1177 | .setauthsize = common_rfc4106_set_authsize, | |
1178 | .encrypt = helper_rfc4106_encrypt, | |
1179 | .decrypt = helper_rfc4106_decrypt, | |
46d93748 | 1180 | .ivsize = GCM_RFC4106_IV_SIZE, |
b7c89d9e HX |
1181 | .maxauthsize = 16, |
1182 | .base = { | |
1183 | .cra_name = "__gcm-aes-aesni", | |
1184 | .cra_driver_name = "__driver-gcm-aes-aesni", | |
1185 | .cra_flags = CRYPTO_ALG_INTERNAL, | |
1186 | .cra_blocksize = 1, | |
1187 | .cra_ctxsize = sizeof(struct aesni_rfc4106_gcm_ctx), | |
1188 | .cra_alignmask = AESNI_ALIGN - 1, | |
1189 | .cra_module = THIS_MODULE, | |
1190 | }, | |
1191 | }, { | |
af05b300 HX |
1192 | .init = rfc4106_init, |
1193 | .exit = rfc4106_exit, | |
fc8517bf SD |
1194 | .setkey = gcmaes_wrapper_set_key, |
1195 | .setauthsize = gcmaes_wrapper_set_authsize, | |
1196 | .encrypt = gcmaes_wrapper_encrypt, | |
1197 | .decrypt = gcmaes_wrapper_decrypt, | |
46d93748 | 1198 | .ivsize = GCM_RFC4106_IV_SIZE, |
af05b300 HX |
1199 | .maxauthsize = 16, |
1200 | .base = { | |
1201 | .cra_name = "rfc4106(gcm(aes))", | |
1202 | .cra_driver_name = "rfc4106-gcm-aesni", | |
1203 | .cra_priority = 400, | |
5e4b8c1f | 1204 | .cra_flags = CRYPTO_ALG_ASYNC, |
af05b300 HX |
1205 | .cra_blocksize = 1, |
1206 | .cra_ctxsize = sizeof(struct cryptd_aead *), | |
1207 | .cra_module = THIS_MODULE, | |
1208 | }, | |
cce2ea8d SD |
1209 | }, { |
1210 | .setkey = generic_gcmaes_set_key, | |
1211 | .setauthsize = generic_gcmaes_set_authsize, | |
1212 | .encrypt = generic_gcmaes_encrypt, | |
1213 | .decrypt = generic_gcmaes_decrypt, | |
46d93748 | 1214 | .ivsize = GCM_AES_IV_SIZE, |
cce2ea8d | 1215 | .maxauthsize = 16, |
fc8517bf SD |
1216 | .base = { |
1217 | .cra_name = "__generic-gcm-aes-aesni", | |
1218 | .cra_driver_name = "__driver-generic-gcm-aes-aesni", | |
1219 | .cra_priority = 0, | |
1220 | .cra_flags = CRYPTO_ALG_INTERNAL, | |
1221 | .cra_blocksize = 1, | |
1222 | .cra_ctxsize = sizeof(struct generic_gcmaes_ctx), | |
1223 | .cra_alignmask = AESNI_ALIGN - 1, | |
1224 | .cra_module = THIS_MODULE, | |
1225 | }, | |
1226 | }, { | |
1227 | .init = generic_gcmaes_init, | |
1228 | .exit = generic_gcmaes_exit, | |
1229 | .setkey = gcmaes_wrapper_set_key, | |
1230 | .setauthsize = gcmaes_wrapper_set_authsize, | |
1231 | .encrypt = gcmaes_wrapper_encrypt, | |
1232 | .decrypt = gcmaes_wrapper_decrypt, | |
1233 | .ivsize = GCM_AES_IV_SIZE, | |
1234 | .maxauthsize = 16, | |
cce2ea8d SD |
1235 | .base = { |
1236 | .cra_name = "gcm(aes)", | |
1237 | .cra_driver_name = "generic-gcm-aesni", | |
1238 | .cra_priority = 400, | |
1239 | .cra_flags = CRYPTO_ALG_ASYNC, | |
1240 | .cra_blocksize = 1, | |
fc8517bf | 1241 | .cra_ctxsize = sizeof(struct cryptd_aead *), |
cce2ea8d SD |
1242 | .cra_module = THIS_MODULE, |
1243 | }, | |
af05b300 HX |
1244 | } }; |
1245 | #else | |
1246 | static struct aead_alg aesni_aead_algs[0]; | |
1247 | #endif | |
1248 | ||
3bd391f0 AK |
1249 | |
1250 | static const struct x86_cpu_id aesni_cpu_id[] = { | |
1251 | X86_FEATURE_MATCH(X86_FEATURE_AES), | |
1252 | {} | |
1253 | }; | |
1254 | MODULE_DEVICE_TABLE(x86cpu, aesni_cpu_id); | |
1255 | ||
54b6a1bd HY |
1256 | static int __init aesni_init(void) |
1257 | { | |
7af6c245 | 1258 | int err; |
54b6a1bd | 1259 | |
3bd391f0 | 1260 | if (!x86_match_cpu(aesni_cpu_id)) |
54b6a1bd | 1261 | return -ENODEV; |
8610d7bf | 1262 | #ifdef CONFIG_X86_64 |
d764593a TC |
1263 | #ifdef CONFIG_AS_AVX2 |
1264 | if (boot_cpu_has(X86_FEATURE_AVX2)) { | |
1265 | pr_info("AVX2 version of gcm_enc/dec engaged.\n"); | |
603f8c3b | 1266 | aesni_gcm_tfm = &aesni_gcm_tfm_avx_gen4; |
d764593a TC |
1267 | } else |
1268 | #endif | |
1269 | #ifdef CONFIG_AS_AVX | |
1270 | if (boot_cpu_has(X86_FEATURE_AVX)) { | |
1271 | pr_info("AVX version of gcm_enc/dec engaged.\n"); | |
603f8c3b | 1272 | aesni_gcm_tfm = &aesni_gcm_tfm_avx_gen2; |
d764593a TC |
1273 | } else |
1274 | #endif | |
1275 | { | |
1276 | pr_info("SSE version of gcm_enc/dec engaged.\n"); | |
603f8c3b | 1277 | aesni_gcm_tfm = &aesni_gcm_tfm_sse; |
d764593a | 1278 | } |
22cddcc7 | 1279 | aesni_ctr_enc_tfm = aesni_ctr_enc; |
5cfed7b3 | 1280 | #ifdef CONFIG_AS_AVX |
da154e82 | 1281 | if (boot_cpu_has(X86_FEATURE_AVX)) { |
22cddcc7 | 1282 | /* optimize performance of ctr mode encryption transform */ |
1283 | aesni_ctr_enc_tfm = aesni_ctr_enc_avx_tfm; | |
1284 | pr_info("AES CTR mode by8 optimization enabled\n"); | |
1285 | } | |
1286 | #endif | |
8610d7bf | 1287 | #endif |
0bd82f5f | 1288 | |
af05b300 HX |
1289 | err = crypto_register_algs(aesni_algs, ARRAY_SIZE(aesni_algs)); |
1290 | if (err) | |
e0db9c48 | 1291 | return err; |
af05b300 | 1292 | |
8b56d348 EB |
1293 | err = simd_register_skciphers_compat(aesni_skciphers, |
1294 | ARRAY_SIZE(aesni_skciphers), | |
1295 | aesni_simd_skciphers); | |
85671860 HX |
1296 | if (err) |
1297 | goto unregister_algs; | |
1298 | ||
af05b300 HX |
1299 | err = crypto_register_aeads(aesni_aead_algs, |
1300 | ARRAY_SIZE(aesni_aead_algs)); | |
1301 | if (err) | |
85671860 HX |
1302 | goto unregister_skciphers; |
1303 | ||
85671860 HX |
1304 | return 0; |
1305 | ||
85671860 | 1306 | unregister_skciphers: |
8b56d348 EB |
1307 | simd_unregister_skciphers(aesni_skciphers, ARRAY_SIZE(aesni_skciphers), |
1308 | aesni_simd_skciphers); | |
af05b300 HX |
1309 | unregister_algs: |
1310 | crypto_unregister_algs(aesni_algs, ARRAY_SIZE(aesni_algs)); | |
af05b300 | 1311 | return err; |
54b6a1bd HY |
1312 | } |
1313 | ||
1314 | static void __exit aesni_exit(void) | |
1315 | { | |
af05b300 | 1316 | crypto_unregister_aeads(aesni_aead_algs, ARRAY_SIZE(aesni_aead_algs)); |
8b56d348 EB |
1317 | simd_unregister_skciphers(aesni_skciphers, ARRAY_SIZE(aesni_skciphers), |
1318 | aesni_simd_skciphers); | |
fa46ccb8 | 1319 | crypto_unregister_algs(aesni_algs, ARRAY_SIZE(aesni_algs)); |
54b6a1bd HY |
1320 | } |
1321 | ||
0fbafd06 | 1322 | late_initcall(aesni_init); |
54b6a1bd HY |
1323 | module_exit(aesni_exit); |
1324 | ||
1325 | MODULE_DESCRIPTION("Rijndael (AES) Cipher Algorithm, Intel AES-NI instructions optimized"); | |
1326 | MODULE_LICENSE("GPL"); | |
5d26a105 | 1327 | MODULE_ALIAS_CRYPTO("aes"); |