Jussi Kivilinna | f3f935a | 2013-04-13 13:47:00 +0300 | [diff] [blame] | 1 | /* |
| 2 | * Glue Code for x86_64/AVX2/AES-NI assembler optimized version of Camellia |
| 3 | * |
| 4 | * Copyright © 2013 Jussi Kivilinna <jussi.kivilinna@mbnet.fi> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | */ |
| 12 | |
| 13 | #include <linux/module.h> |
| 14 | #include <linux/types.h> |
| 15 | #include <linux/crypto.h> |
| 16 | #include <linux/err.h> |
Ard Biesheuvel | 801201a | 2013-09-20 09:55:41 +0200 | [diff] [blame] | 17 | #include <crypto/ablk_helper.h> |
Jussi Kivilinna | f3f935a | 2013-04-13 13:47:00 +0300 | [diff] [blame] | 18 | #include <crypto/algapi.h> |
| 19 | #include <crypto/ctr.h> |
| 20 | #include <crypto/lrw.h> |
| 21 | #include <crypto/xts.h> |
| 22 | #include <asm/xcr.h> |
| 23 | #include <asm/xsave.h> |
| 24 | #include <asm/crypto/camellia.h> |
Jussi Kivilinna | f3f935a | 2013-04-13 13:47:00 +0300 | [diff] [blame] | 25 | #include <asm/crypto/glue_helper.h> |
| 26 | |
| 27 | #define CAMELLIA_AESNI_PARALLEL_BLOCKS 16 |
| 28 | #define CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS 32 |
| 29 | |
| 30 | /* 32-way AVX2/AES-NI parallel cipher functions */ |
| 31 | asmlinkage void camellia_ecb_enc_32way(struct camellia_ctx *ctx, u8 *dst, |
| 32 | const u8 *src); |
| 33 | asmlinkage void camellia_ecb_dec_32way(struct camellia_ctx *ctx, u8 *dst, |
| 34 | const u8 *src); |
| 35 | |
| 36 | asmlinkage void camellia_cbc_dec_32way(struct camellia_ctx *ctx, u8 *dst, |
| 37 | const u8 *src); |
| 38 | asmlinkage void camellia_ctr_32way(struct camellia_ctx *ctx, u8 *dst, |
| 39 | const u8 *src, le128 *iv); |
| 40 | |
| 41 | asmlinkage void camellia_xts_enc_32way(struct camellia_ctx *ctx, u8 *dst, |
| 42 | const u8 *src, le128 *iv); |
| 43 | asmlinkage void camellia_xts_dec_32way(struct camellia_ctx *ctx, u8 *dst, |
| 44 | const u8 *src, le128 *iv); |
| 45 | |
| 46 | static const struct common_glue_ctx camellia_enc = { |
| 47 | .num_funcs = 4, |
| 48 | .fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS, |
| 49 | |
| 50 | .funcs = { { |
| 51 | .num_blocks = CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS, |
| 52 | .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_ecb_enc_32way) } |
| 53 | }, { |
| 54 | .num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS, |
| 55 | .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_ecb_enc_16way) } |
| 56 | }, { |
| 57 | .num_blocks = 2, |
| 58 | .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_enc_blk_2way) } |
| 59 | }, { |
| 60 | .num_blocks = 1, |
| 61 | .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_enc_blk) } |
| 62 | } } |
| 63 | }; |
| 64 | |
| 65 | static const struct common_glue_ctx camellia_ctr = { |
| 66 | .num_funcs = 4, |
| 67 | .fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS, |
| 68 | |
| 69 | .funcs = { { |
| 70 | .num_blocks = CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS, |
| 71 | .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_ctr_32way) } |
| 72 | }, { |
| 73 | .num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS, |
| 74 | .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_ctr_16way) } |
| 75 | }, { |
| 76 | .num_blocks = 2, |
| 77 | .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_crypt_ctr_2way) } |
| 78 | }, { |
| 79 | .num_blocks = 1, |
| 80 | .fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_crypt_ctr) } |
| 81 | } } |
| 82 | }; |
| 83 | |
| 84 | static const struct common_glue_ctx camellia_enc_xts = { |
| 85 | .num_funcs = 3, |
| 86 | .fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS, |
| 87 | |
| 88 | .funcs = { { |
| 89 | .num_blocks = CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS, |
| 90 | .fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_enc_32way) } |
| 91 | }, { |
| 92 | .num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS, |
| 93 | .fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_enc_16way) } |
| 94 | }, { |
| 95 | .num_blocks = 1, |
| 96 | .fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_enc) } |
| 97 | } } |
| 98 | }; |
| 99 | |
| 100 | static const struct common_glue_ctx camellia_dec = { |
| 101 | .num_funcs = 4, |
| 102 | .fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS, |
| 103 | |
| 104 | .funcs = { { |
| 105 | .num_blocks = CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS, |
| 106 | .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_ecb_dec_32way) } |
| 107 | }, { |
| 108 | .num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS, |
| 109 | .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_ecb_dec_16way) } |
| 110 | }, { |
| 111 | .num_blocks = 2, |
| 112 | .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_dec_blk_2way) } |
| 113 | }, { |
| 114 | .num_blocks = 1, |
| 115 | .fn_u = { .ecb = GLUE_FUNC_CAST(camellia_dec_blk) } |
| 116 | } } |
| 117 | }; |
| 118 | |
| 119 | static const struct common_glue_ctx camellia_dec_cbc = { |
| 120 | .num_funcs = 4, |
| 121 | .fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS, |
| 122 | |
| 123 | .funcs = { { |
| 124 | .num_blocks = CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS, |
| 125 | .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_cbc_dec_32way) } |
| 126 | }, { |
| 127 | .num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS, |
| 128 | .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_cbc_dec_16way) } |
| 129 | }, { |
| 130 | .num_blocks = 2, |
| 131 | .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_decrypt_cbc_2way) } |
| 132 | }, { |
| 133 | .num_blocks = 1, |
| 134 | .fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_dec_blk) } |
| 135 | } } |
| 136 | }; |
| 137 | |
| 138 | static const struct common_glue_ctx camellia_dec_xts = { |
| 139 | .num_funcs = 3, |
| 140 | .fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS, |
| 141 | |
| 142 | .funcs = { { |
| 143 | .num_blocks = CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS, |
| 144 | .fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_dec_32way) } |
| 145 | }, { |
| 146 | .num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS, |
| 147 | .fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_dec_16way) } |
| 148 | }, { |
| 149 | .num_blocks = 1, |
| 150 | .fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_dec) } |
| 151 | } } |
| 152 | }; |
| 153 | |
| 154 | static int ecb_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst, |
| 155 | struct scatterlist *src, unsigned int nbytes) |
| 156 | { |
| 157 | return glue_ecb_crypt_128bit(&camellia_enc, desc, dst, src, nbytes); |
| 158 | } |
| 159 | |
| 160 | static int ecb_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst, |
| 161 | struct scatterlist *src, unsigned int nbytes) |
| 162 | { |
| 163 | return glue_ecb_crypt_128bit(&camellia_dec, desc, dst, src, nbytes); |
| 164 | } |
| 165 | |
| 166 | static int cbc_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst, |
| 167 | struct scatterlist *src, unsigned int nbytes) |
| 168 | { |
| 169 | return glue_cbc_encrypt_128bit(GLUE_FUNC_CAST(camellia_enc_blk), desc, |
| 170 | dst, src, nbytes); |
| 171 | } |
| 172 | |
| 173 | static int cbc_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst, |
| 174 | struct scatterlist *src, unsigned int nbytes) |
| 175 | { |
| 176 | return glue_cbc_decrypt_128bit(&camellia_dec_cbc, desc, dst, src, |
| 177 | nbytes); |
| 178 | } |
| 179 | |
| 180 | static int ctr_crypt(struct blkcipher_desc *desc, struct scatterlist *dst, |
| 181 | struct scatterlist *src, unsigned int nbytes) |
| 182 | { |
| 183 | return glue_ctr_crypt_128bit(&camellia_ctr, desc, dst, src, nbytes); |
| 184 | } |
| 185 | |
| 186 | static inline bool camellia_fpu_begin(bool fpu_enabled, unsigned int nbytes) |
| 187 | { |
| 188 | return glue_fpu_begin(CAMELLIA_BLOCK_SIZE, |
| 189 | CAMELLIA_AESNI_PARALLEL_BLOCKS, NULL, fpu_enabled, |
| 190 | nbytes); |
| 191 | } |
| 192 | |
| 193 | static inline void camellia_fpu_end(bool fpu_enabled) |
| 194 | { |
| 195 | glue_fpu_end(fpu_enabled); |
| 196 | } |
| 197 | |
| 198 | static int camellia_setkey(struct crypto_tfm *tfm, const u8 *in_key, |
| 199 | unsigned int key_len) |
| 200 | { |
| 201 | return __camellia_setkey(crypto_tfm_ctx(tfm), in_key, key_len, |
| 202 | &tfm->crt_flags); |
| 203 | } |
| 204 | |
| 205 | struct crypt_priv { |
| 206 | struct camellia_ctx *ctx; |
| 207 | bool fpu_enabled; |
| 208 | }; |
| 209 | |
| 210 | static void encrypt_callback(void *priv, u8 *srcdst, unsigned int nbytes) |
| 211 | { |
| 212 | const unsigned int bsize = CAMELLIA_BLOCK_SIZE; |
| 213 | struct crypt_priv *ctx = priv; |
| 214 | int i; |
| 215 | |
| 216 | ctx->fpu_enabled = camellia_fpu_begin(ctx->fpu_enabled, nbytes); |
| 217 | |
| 218 | if (nbytes >= CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS * bsize) { |
| 219 | camellia_ecb_enc_32way(ctx->ctx, srcdst, srcdst); |
| 220 | srcdst += bsize * CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS; |
| 221 | nbytes -= bsize * CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS; |
| 222 | } |
| 223 | |
| 224 | if (nbytes >= CAMELLIA_AESNI_PARALLEL_BLOCKS * bsize) { |
| 225 | camellia_ecb_enc_16way(ctx->ctx, srcdst, srcdst); |
| 226 | srcdst += bsize * CAMELLIA_AESNI_PARALLEL_BLOCKS; |
| 227 | nbytes -= bsize * CAMELLIA_AESNI_PARALLEL_BLOCKS; |
| 228 | } |
| 229 | |
| 230 | while (nbytes >= CAMELLIA_PARALLEL_BLOCKS * bsize) { |
| 231 | camellia_enc_blk_2way(ctx->ctx, srcdst, srcdst); |
| 232 | srcdst += bsize * CAMELLIA_PARALLEL_BLOCKS; |
| 233 | nbytes -= bsize * CAMELLIA_PARALLEL_BLOCKS; |
| 234 | } |
| 235 | |
| 236 | for (i = 0; i < nbytes / bsize; i++, srcdst += bsize) |
| 237 | camellia_enc_blk(ctx->ctx, srcdst, srcdst); |
| 238 | } |
| 239 | |
| 240 | static void decrypt_callback(void *priv, u8 *srcdst, unsigned int nbytes) |
| 241 | { |
| 242 | const unsigned int bsize = CAMELLIA_BLOCK_SIZE; |
| 243 | struct crypt_priv *ctx = priv; |
| 244 | int i; |
| 245 | |
| 246 | ctx->fpu_enabled = camellia_fpu_begin(ctx->fpu_enabled, nbytes); |
| 247 | |
| 248 | if (nbytes >= CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS * bsize) { |
| 249 | camellia_ecb_dec_32way(ctx->ctx, srcdst, srcdst); |
| 250 | srcdst += bsize * CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS; |
| 251 | nbytes -= bsize * CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS; |
| 252 | } |
| 253 | |
| 254 | if (nbytes >= CAMELLIA_AESNI_PARALLEL_BLOCKS * bsize) { |
| 255 | camellia_ecb_dec_16way(ctx->ctx, srcdst, srcdst); |
| 256 | srcdst += bsize * CAMELLIA_AESNI_PARALLEL_BLOCKS; |
| 257 | nbytes -= bsize * CAMELLIA_AESNI_PARALLEL_BLOCKS; |
| 258 | } |
| 259 | |
| 260 | while (nbytes >= CAMELLIA_PARALLEL_BLOCKS * bsize) { |
| 261 | camellia_dec_blk_2way(ctx->ctx, srcdst, srcdst); |
| 262 | srcdst += bsize * CAMELLIA_PARALLEL_BLOCKS; |
| 263 | nbytes -= bsize * CAMELLIA_PARALLEL_BLOCKS; |
| 264 | } |
| 265 | |
| 266 | for (i = 0; i < nbytes / bsize; i++, srcdst += bsize) |
| 267 | camellia_dec_blk(ctx->ctx, srcdst, srcdst); |
| 268 | } |
| 269 | |
| 270 | static int lrw_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst, |
| 271 | struct scatterlist *src, unsigned int nbytes) |
| 272 | { |
| 273 | struct camellia_lrw_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); |
| 274 | be128 buf[CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS]; |
| 275 | struct crypt_priv crypt_ctx = { |
| 276 | .ctx = &ctx->camellia_ctx, |
| 277 | .fpu_enabled = false, |
| 278 | }; |
| 279 | struct lrw_crypt_req req = { |
| 280 | .tbuf = buf, |
| 281 | .tbuflen = sizeof(buf), |
| 282 | |
| 283 | .table_ctx = &ctx->lrw_table, |
| 284 | .crypt_ctx = &crypt_ctx, |
| 285 | .crypt_fn = encrypt_callback, |
| 286 | }; |
| 287 | int ret; |
| 288 | |
| 289 | desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP; |
| 290 | ret = lrw_crypt(desc, dst, src, nbytes, &req); |
| 291 | camellia_fpu_end(crypt_ctx.fpu_enabled); |
| 292 | |
| 293 | return ret; |
| 294 | } |
| 295 | |
| 296 | static int lrw_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst, |
| 297 | struct scatterlist *src, unsigned int nbytes) |
| 298 | { |
| 299 | struct camellia_lrw_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); |
| 300 | be128 buf[CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS]; |
| 301 | struct crypt_priv crypt_ctx = { |
| 302 | .ctx = &ctx->camellia_ctx, |
| 303 | .fpu_enabled = false, |
| 304 | }; |
| 305 | struct lrw_crypt_req req = { |
| 306 | .tbuf = buf, |
| 307 | .tbuflen = sizeof(buf), |
| 308 | |
| 309 | .table_ctx = &ctx->lrw_table, |
| 310 | .crypt_ctx = &crypt_ctx, |
| 311 | .crypt_fn = decrypt_callback, |
| 312 | }; |
| 313 | int ret; |
| 314 | |
| 315 | desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP; |
| 316 | ret = lrw_crypt(desc, dst, src, nbytes, &req); |
| 317 | camellia_fpu_end(crypt_ctx.fpu_enabled); |
| 318 | |
| 319 | return ret; |
| 320 | } |
| 321 | |
| 322 | static int xts_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst, |
| 323 | struct scatterlist *src, unsigned int nbytes) |
| 324 | { |
| 325 | struct camellia_xts_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); |
| 326 | |
| 327 | return glue_xts_crypt_128bit(&camellia_enc_xts, desc, dst, src, nbytes, |
| 328 | XTS_TWEAK_CAST(camellia_enc_blk), |
| 329 | &ctx->tweak_ctx, &ctx->crypt_ctx); |
| 330 | } |
| 331 | |
| 332 | static int xts_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst, |
| 333 | struct scatterlist *src, unsigned int nbytes) |
| 334 | { |
| 335 | struct camellia_xts_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); |
| 336 | |
| 337 | return glue_xts_crypt_128bit(&camellia_dec_xts, desc, dst, src, nbytes, |
| 338 | XTS_TWEAK_CAST(camellia_enc_blk), |
| 339 | &ctx->tweak_ctx, &ctx->crypt_ctx); |
| 340 | } |
| 341 | |
| 342 | static struct crypto_alg cmll_algs[10] = { { |
| 343 | .cra_name = "__ecb-camellia-aesni-avx2", |
| 344 | .cra_driver_name = "__driver-ecb-camellia-aesni-avx2", |
| 345 | .cra_priority = 0, |
| 346 | .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, |
| 347 | .cra_blocksize = CAMELLIA_BLOCK_SIZE, |
| 348 | .cra_ctxsize = sizeof(struct camellia_ctx), |
| 349 | .cra_alignmask = 0, |
| 350 | .cra_type = &crypto_blkcipher_type, |
| 351 | .cra_module = THIS_MODULE, |
| 352 | .cra_u = { |
| 353 | .blkcipher = { |
| 354 | .min_keysize = CAMELLIA_MIN_KEY_SIZE, |
| 355 | .max_keysize = CAMELLIA_MAX_KEY_SIZE, |
| 356 | .setkey = camellia_setkey, |
| 357 | .encrypt = ecb_encrypt, |
| 358 | .decrypt = ecb_decrypt, |
| 359 | }, |
| 360 | }, |
| 361 | }, { |
| 362 | .cra_name = "__cbc-camellia-aesni-avx2", |
| 363 | .cra_driver_name = "__driver-cbc-camellia-aesni-avx2", |
| 364 | .cra_priority = 0, |
| 365 | .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, |
| 366 | .cra_blocksize = CAMELLIA_BLOCK_SIZE, |
| 367 | .cra_ctxsize = sizeof(struct camellia_ctx), |
| 368 | .cra_alignmask = 0, |
| 369 | .cra_type = &crypto_blkcipher_type, |
| 370 | .cra_module = THIS_MODULE, |
| 371 | .cra_u = { |
| 372 | .blkcipher = { |
| 373 | .min_keysize = CAMELLIA_MIN_KEY_SIZE, |
| 374 | .max_keysize = CAMELLIA_MAX_KEY_SIZE, |
| 375 | .setkey = camellia_setkey, |
| 376 | .encrypt = cbc_encrypt, |
| 377 | .decrypt = cbc_decrypt, |
| 378 | }, |
| 379 | }, |
| 380 | }, { |
| 381 | .cra_name = "__ctr-camellia-aesni-avx2", |
| 382 | .cra_driver_name = "__driver-ctr-camellia-aesni-avx2", |
| 383 | .cra_priority = 0, |
| 384 | .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, |
| 385 | .cra_blocksize = 1, |
| 386 | .cra_ctxsize = sizeof(struct camellia_ctx), |
| 387 | .cra_alignmask = 0, |
| 388 | .cra_type = &crypto_blkcipher_type, |
| 389 | .cra_module = THIS_MODULE, |
| 390 | .cra_u = { |
| 391 | .blkcipher = { |
| 392 | .min_keysize = CAMELLIA_MIN_KEY_SIZE, |
| 393 | .max_keysize = CAMELLIA_MAX_KEY_SIZE, |
| 394 | .ivsize = CAMELLIA_BLOCK_SIZE, |
| 395 | .setkey = camellia_setkey, |
| 396 | .encrypt = ctr_crypt, |
| 397 | .decrypt = ctr_crypt, |
| 398 | }, |
| 399 | }, |
| 400 | }, { |
| 401 | .cra_name = "__lrw-camellia-aesni-avx2", |
| 402 | .cra_driver_name = "__driver-lrw-camellia-aesni-avx2", |
| 403 | .cra_priority = 0, |
| 404 | .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, |
| 405 | .cra_blocksize = CAMELLIA_BLOCK_SIZE, |
| 406 | .cra_ctxsize = sizeof(struct camellia_lrw_ctx), |
| 407 | .cra_alignmask = 0, |
| 408 | .cra_type = &crypto_blkcipher_type, |
| 409 | .cra_module = THIS_MODULE, |
| 410 | .cra_exit = lrw_camellia_exit_tfm, |
| 411 | .cra_u = { |
| 412 | .blkcipher = { |
| 413 | .min_keysize = CAMELLIA_MIN_KEY_SIZE + |
| 414 | CAMELLIA_BLOCK_SIZE, |
| 415 | .max_keysize = CAMELLIA_MAX_KEY_SIZE + |
| 416 | CAMELLIA_BLOCK_SIZE, |
| 417 | .ivsize = CAMELLIA_BLOCK_SIZE, |
| 418 | .setkey = lrw_camellia_setkey, |
| 419 | .encrypt = lrw_encrypt, |
| 420 | .decrypt = lrw_decrypt, |
| 421 | }, |
| 422 | }, |
| 423 | }, { |
| 424 | .cra_name = "__xts-camellia-aesni-avx2", |
| 425 | .cra_driver_name = "__driver-xts-camellia-aesni-avx2", |
| 426 | .cra_priority = 0, |
| 427 | .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER, |
| 428 | .cra_blocksize = CAMELLIA_BLOCK_SIZE, |
| 429 | .cra_ctxsize = sizeof(struct camellia_xts_ctx), |
| 430 | .cra_alignmask = 0, |
| 431 | .cra_type = &crypto_blkcipher_type, |
| 432 | .cra_module = THIS_MODULE, |
| 433 | .cra_u = { |
| 434 | .blkcipher = { |
| 435 | .min_keysize = CAMELLIA_MIN_KEY_SIZE * 2, |
| 436 | .max_keysize = CAMELLIA_MAX_KEY_SIZE * 2, |
| 437 | .ivsize = CAMELLIA_BLOCK_SIZE, |
| 438 | .setkey = xts_camellia_setkey, |
| 439 | .encrypt = xts_encrypt, |
| 440 | .decrypt = xts_decrypt, |
| 441 | }, |
| 442 | }, |
| 443 | }, { |
| 444 | .cra_name = "ecb(camellia)", |
| 445 | .cra_driver_name = "ecb-camellia-aesni-avx2", |
| 446 | .cra_priority = 500, |
| 447 | .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC, |
| 448 | .cra_blocksize = CAMELLIA_BLOCK_SIZE, |
| 449 | .cra_ctxsize = sizeof(struct async_helper_ctx), |
| 450 | .cra_alignmask = 0, |
| 451 | .cra_type = &crypto_ablkcipher_type, |
| 452 | .cra_module = THIS_MODULE, |
| 453 | .cra_init = ablk_init, |
| 454 | .cra_exit = ablk_exit, |
| 455 | .cra_u = { |
| 456 | .ablkcipher = { |
| 457 | .min_keysize = CAMELLIA_MIN_KEY_SIZE, |
| 458 | .max_keysize = CAMELLIA_MAX_KEY_SIZE, |
| 459 | .setkey = ablk_set_key, |
| 460 | .encrypt = ablk_encrypt, |
| 461 | .decrypt = ablk_decrypt, |
| 462 | }, |
| 463 | }, |
| 464 | }, { |
| 465 | .cra_name = "cbc(camellia)", |
| 466 | .cra_driver_name = "cbc-camellia-aesni-avx2", |
| 467 | .cra_priority = 500, |
| 468 | .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC, |
| 469 | .cra_blocksize = CAMELLIA_BLOCK_SIZE, |
| 470 | .cra_ctxsize = sizeof(struct async_helper_ctx), |
| 471 | .cra_alignmask = 0, |
| 472 | .cra_type = &crypto_ablkcipher_type, |
| 473 | .cra_module = THIS_MODULE, |
| 474 | .cra_init = ablk_init, |
| 475 | .cra_exit = ablk_exit, |
| 476 | .cra_u = { |
| 477 | .ablkcipher = { |
| 478 | .min_keysize = CAMELLIA_MIN_KEY_SIZE, |
| 479 | .max_keysize = CAMELLIA_MAX_KEY_SIZE, |
| 480 | .ivsize = CAMELLIA_BLOCK_SIZE, |
| 481 | .setkey = ablk_set_key, |
| 482 | .encrypt = __ablk_encrypt, |
| 483 | .decrypt = ablk_decrypt, |
| 484 | }, |
| 485 | }, |
| 486 | }, { |
| 487 | .cra_name = "ctr(camellia)", |
| 488 | .cra_driver_name = "ctr-camellia-aesni-avx2", |
| 489 | .cra_priority = 500, |
| 490 | .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC, |
| 491 | .cra_blocksize = 1, |
| 492 | .cra_ctxsize = sizeof(struct async_helper_ctx), |
| 493 | .cra_alignmask = 0, |
| 494 | .cra_type = &crypto_ablkcipher_type, |
| 495 | .cra_module = THIS_MODULE, |
| 496 | .cra_init = ablk_init, |
| 497 | .cra_exit = ablk_exit, |
| 498 | .cra_u = { |
| 499 | .ablkcipher = { |
| 500 | .min_keysize = CAMELLIA_MIN_KEY_SIZE, |
| 501 | .max_keysize = CAMELLIA_MAX_KEY_SIZE, |
| 502 | .ivsize = CAMELLIA_BLOCK_SIZE, |
| 503 | .setkey = ablk_set_key, |
| 504 | .encrypt = ablk_encrypt, |
| 505 | .decrypt = ablk_encrypt, |
| 506 | .geniv = "chainiv", |
| 507 | }, |
| 508 | }, |
| 509 | }, { |
| 510 | .cra_name = "lrw(camellia)", |
| 511 | .cra_driver_name = "lrw-camellia-aesni-avx2", |
| 512 | .cra_priority = 500, |
| 513 | .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC, |
| 514 | .cra_blocksize = CAMELLIA_BLOCK_SIZE, |
| 515 | .cra_ctxsize = sizeof(struct async_helper_ctx), |
| 516 | .cra_alignmask = 0, |
| 517 | .cra_type = &crypto_ablkcipher_type, |
| 518 | .cra_module = THIS_MODULE, |
| 519 | .cra_init = ablk_init, |
| 520 | .cra_exit = ablk_exit, |
| 521 | .cra_u = { |
| 522 | .ablkcipher = { |
| 523 | .min_keysize = CAMELLIA_MIN_KEY_SIZE + |
| 524 | CAMELLIA_BLOCK_SIZE, |
| 525 | .max_keysize = CAMELLIA_MAX_KEY_SIZE + |
| 526 | CAMELLIA_BLOCK_SIZE, |
| 527 | .ivsize = CAMELLIA_BLOCK_SIZE, |
| 528 | .setkey = ablk_set_key, |
| 529 | .encrypt = ablk_encrypt, |
| 530 | .decrypt = ablk_decrypt, |
| 531 | }, |
| 532 | }, |
| 533 | }, { |
| 534 | .cra_name = "xts(camellia)", |
| 535 | .cra_driver_name = "xts-camellia-aesni-avx2", |
| 536 | .cra_priority = 500, |
| 537 | .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC, |
| 538 | .cra_blocksize = CAMELLIA_BLOCK_SIZE, |
| 539 | .cra_ctxsize = sizeof(struct async_helper_ctx), |
| 540 | .cra_alignmask = 0, |
| 541 | .cra_type = &crypto_ablkcipher_type, |
| 542 | .cra_module = THIS_MODULE, |
| 543 | .cra_init = ablk_init, |
| 544 | .cra_exit = ablk_exit, |
| 545 | .cra_u = { |
| 546 | .ablkcipher = { |
| 547 | .min_keysize = CAMELLIA_MIN_KEY_SIZE * 2, |
| 548 | .max_keysize = CAMELLIA_MAX_KEY_SIZE * 2, |
| 549 | .ivsize = CAMELLIA_BLOCK_SIZE, |
| 550 | .setkey = ablk_set_key, |
| 551 | .encrypt = ablk_encrypt, |
| 552 | .decrypt = ablk_decrypt, |
| 553 | }, |
| 554 | }, |
| 555 | } }; |
| 556 | |
| 557 | static int __init camellia_aesni_init(void) |
| 558 | { |
| 559 | u64 xcr0; |
| 560 | |
| 561 | if (!cpu_has_avx2 || !cpu_has_avx || !cpu_has_aes || !cpu_has_osxsave) { |
| 562 | pr_info("AVX2 or AES-NI instructions are not detected.\n"); |
| 563 | return -ENODEV; |
| 564 | } |
| 565 | |
| 566 | xcr0 = xgetbv(XCR_XFEATURE_ENABLED_MASK); |
| 567 | if ((xcr0 & (XSTATE_SSE | XSTATE_YMM)) != (XSTATE_SSE | XSTATE_YMM)) { |
| 568 | pr_info("AVX2 detected but unusable.\n"); |
| 569 | return -ENODEV; |
| 570 | } |
| 571 | |
| 572 | return crypto_register_algs(cmll_algs, ARRAY_SIZE(cmll_algs)); |
| 573 | } |
| 574 | |
| 575 | static void __exit camellia_aesni_fini(void) |
| 576 | { |
| 577 | crypto_unregister_algs(cmll_algs, ARRAY_SIZE(cmll_algs)); |
| 578 | } |
| 579 | |
| 580 | module_init(camellia_aesni_init); |
| 581 | module_exit(camellia_aesni_fini); |
| 582 | |
| 583 | MODULE_LICENSE("GPL"); |
| 584 | MODULE_DESCRIPTION("Camellia Cipher Algorithm, AES-NI/AVX2 optimized"); |
| 585 | MODULE_ALIAS("camellia"); |
| 586 | MODULE_ALIAS("camellia-asm"); |