developer | 2df22aa | 2024-03-22 14:36:06 +0800 | [diff] [blame^] | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
| 2 | /* |
| 3 | * Copyright (C) 2023 MediaTek Inc. |
| 4 | * |
| 5 | * Author: Chris.Chou <chris.chou@mediatek.com> |
| 6 | * Ren-Ting Wang <ren-ting.wang@mediatek.com> |
| 7 | */ |
| 8 | |
| 9 | #include <linux/bitops.h> |
| 10 | #include <crypto/aes.h> |
| 11 | #include <crypto/hmac.h> |
| 12 | #include <crypto/skcipher.h> |
| 13 | #include <crypto/internal/skcipher.h> |
| 14 | #include <crypto/internal/hash.h> |
| 15 | |
| 16 | #include "crypto-eip/crypto-eip.h" |
| 17 | #include "crypto-eip/ddk-wrapper.h" |
| 18 | #include "crypto-eip/lookaside.h" |
| 19 | #include "crypto-eip/internal.h" |
| 20 | |
| 21 | static inline u64 mtk_crypto_queued_len(struct mtk_crypto_ahash_req *req) |
| 22 | { |
| 23 | return req->len - req->processed; |
| 24 | } |
| 25 | |
| 26 | static int mtk_crypto_ahash_enqueue(struct ahash_request *areq) |
| 27 | { |
| 28 | struct mtk_crypto_ahash_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(areq)); |
| 29 | struct mtk_crypto_priv *priv = ctx->priv; |
| 30 | int ret; |
| 31 | |
| 32 | spin_lock_bh(&priv->mtk_eip_queue.queue_lock); |
| 33 | ret = crypto_enqueue_request(&priv->mtk_eip_queue.queue, &areq->base); |
| 34 | spin_unlock_bh(&priv->mtk_eip_queue.queue_lock); |
| 35 | |
| 36 | queue_work(priv->mtk_eip_queue.workqueue, |
| 37 | &priv->mtk_eip_queue.work_data.work); |
| 38 | |
| 39 | return ret; |
| 40 | } |
| 41 | |
| 42 | static int mtk_crypto_ahash_send(struct crypto_async_request *async) |
| 43 | { |
| 44 | struct ahash_request *areq = ahash_request_cast(async); |
| 45 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 46 | struct mtk_crypto_ahash_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(areq)); |
| 47 | int cache_len; |
| 48 | int extra = 0; |
| 49 | int areq_shift; |
| 50 | u64 queued; |
| 51 | u64 len; |
| 52 | bool ret; |
| 53 | uint8_t *cur_req; |
| 54 | int i; |
| 55 | |
| 56 | if (req->hmac_zlen) |
| 57 | goto zero_length_hmac; |
| 58 | areq_shift = 0; |
| 59 | queued = mtk_crypto_queued_len(req); |
| 60 | if (queued <= HASH_CACHE_SIZE) |
| 61 | cache_len = queued; |
| 62 | else |
| 63 | cache_len = queued - areq->nbytes; |
| 64 | |
| 65 | if (!req->finish && !req->last_req) { |
| 66 | /* If this is not the last request and the queued data does not |
| 67 | * fit into full cache blocks, cache it for the next send call. |
| 68 | */ |
| 69 | extra = queued & (HASH_CACHE_SIZE - 1); |
| 70 | |
| 71 | if (!extra) |
| 72 | extra = HASH_CACHE_SIZE; |
| 73 | |
| 74 | sg_pcopy_to_buffer(areq->src, sg_nents(areq->src), |
| 75 | req->cache_next, extra, areq->nbytes - extra); |
| 76 | |
| 77 | queued -= extra; |
| 78 | |
| 79 | if (!queued) |
| 80 | return 0; |
| 81 | |
| 82 | extra = 0; |
| 83 | } |
| 84 | |
| 85 | len = queued; |
| 86 | cur_req = kmalloc(sizeof(uint8_t) * len + AES_BLOCK_SIZE, GFP_KERNEL); |
| 87 | if (!cur_req) { |
| 88 | CRYPTO_ERR("alloc buffer for ahash request failed\n"); |
| 89 | goto exit; |
| 90 | } |
| 91 | /* Send request to EIP197 */ |
| 92 | if (cache_len) { |
| 93 | memcpy(cur_req, req->cache, cache_len); |
| 94 | queued -= cache_len; |
| 95 | } |
| 96 | if (queued) |
| 97 | sg_copy_to_buffer(areq->src, sg_nents(areq->src), cur_req + cache_len, queued); |
| 98 | |
| 99 | if (unlikely(req->xcbcmac)) { |
| 100 | int pad_size; |
| 101 | int offset; |
| 102 | int new; |
| 103 | |
| 104 | if (req->finish) { |
| 105 | new = len % AES_BLOCK_SIZE; |
| 106 | pad_size = AES_BLOCK_SIZE - new; |
| 107 | offset = (len - new) / sizeof(u32); |
| 108 | |
| 109 | if (pad_size != AES_BLOCK_SIZE) { |
| 110 | memset(cur_req + len, 0, pad_size); |
| 111 | cur_req[len] = 0x80; |
| 112 | for (i = 0; i < AES_BLOCK_SIZE / sizeof(u32); i++) { |
| 113 | ((__be32 *) cur_req)[offset + i] ^= |
| 114 | cpu_to_be32(le32_to_cpu( |
| 115 | ctx->ipad[i + 4])); |
| 116 | } |
| 117 | } else { |
| 118 | for (i = 0; i < AES_BLOCK_SIZE / sizeof(u32); i++) |
| 119 | ((__be32 *) cur_req)[offset - 4 + i] ^= |
| 120 | cpu_to_be32(le32_to_cpu( |
| 121 | ctx->ipad[i])); |
| 122 | pad_size = 0; |
| 123 | } |
| 124 | } |
| 125 | |
| 126 | ret = crypto_ahash_aes_cbc(async, req, cur_req, len + pad_size); |
| 127 | kfree(cur_req); |
| 128 | if (ret) { |
| 129 | if (req->sa_pointer) |
| 130 | crypto_free_sa(req->sa_pointer); |
| 131 | kfree(req->token_context); |
| 132 | CRYPTO_ERR("Fail on ahash_aes_cbc process\n"); |
| 133 | goto exit; |
| 134 | } |
| 135 | req->not_first = true; |
| 136 | req->processed += len - extra; |
| 137 | |
| 138 | return 0; |
| 139 | } |
| 140 | |
| 141 | if (req->not_first) |
| 142 | ret = crypto_ahash_token_req(async, req, cur_req, len, req->finish); |
| 143 | else |
| 144 | ret = crypto_first_ahash_req(async, req, cur_req, len, req->finish); |
| 145 | |
| 146 | kfree(cur_req); |
| 147 | |
| 148 | if (ret) { |
| 149 | if (req->sa_pointer) |
| 150 | crypto_free_sa(req->sa_pointer); |
| 151 | kfree(req->token_context); |
| 152 | CRYPTO_ERR("Fail on ahash_req process\n"); |
| 153 | goto exit; |
| 154 | } |
| 155 | req->not_first = true; |
| 156 | req->processed += len - extra; |
| 157 | |
| 158 | return 0; |
| 159 | |
| 160 | zero_length_hmac: |
| 161 | if (req->sa_pointer) |
| 162 | crypto_free_sa(req->sa_pointer); |
| 163 | kfree(req->token_context); |
| 164 | |
| 165 | /* complete the final hash with opad for hmac*/ |
| 166 | if (req->hmac) { |
| 167 | req->sa_pointer = ctx->opad_sa; |
| 168 | req->token_context = ctx->opad_token; |
| 169 | ret = crypto_ahash_token_req(async, req, (uint8_t *) req->state, |
| 170 | req->digest_sz, true); |
| 171 | } |
| 172 | |
| 173 | return 0; |
| 174 | exit: |
| 175 | async->complete(async, ret); |
| 176 | |
| 177 | return 0; |
| 178 | } |
| 179 | |
| 180 | static int mtk_crypto_ahash_handle_result(struct mtk_crypto_result *res, int err) |
| 181 | { |
| 182 | struct crypto_async_request *async = res->async; |
| 183 | struct ahash_request *areq = ahash_request_cast(async); |
| 184 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 185 | struct crypto_ahash *ahash = crypto_ahash_reqtfm(areq); |
| 186 | int cache_len; |
| 187 | |
| 188 | if (req->xcbcmac) { |
| 189 | memcpy(req->state, res->dst + res->size - AES_BLOCK_SIZE, AES_BLOCK_SIZE); |
| 190 | crypto_free_sa(res->eip.sa); |
| 191 | kfree(res->eip.token_context); |
| 192 | } else |
| 193 | memcpy(req->state, res->dst, req->digest_sz); |
| 194 | |
| 195 | crypto_free_token(res->eip.token); |
| 196 | crypto_free_pkt(res->eip.pkt_handle); |
| 197 | |
| 198 | if (req->finish) { |
| 199 | if (req->hmac && !req->hmac_zlen) { |
| 200 | req->hmac_zlen = true; |
| 201 | mtk_crypto_ahash_enqueue(areq); |
| 202 | return 0; |
| 203 | } |
| 204 | if (req->sa_pointer) |
| 205 | crypto_free_sa(req->sa_pointer); |
| 206 | |
| 207 | kfree(req->token_context); |
| 208 | |
| 209 | memcpy(areq->result, req->state, crypto_ahash_digestsize(ahash)); |
| 210 | } |
| 211 | |
| 212 | cache_len = mtk_crypto_queued_len(req); |
| 213 | if (cache_len) |
| 214 | memcpy(req->cache, req->cache_next, cache_len); |
| 215 | async->complete(async, 0); |
| 216 | |
| 217 | return 0; |
| 218 | } |
| 219 | |
| 220 | static int mtk_crypto_ahash_cache(struct ahash_request *areq) |
| 221 | { |
| 222 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 223 | u64 cache_len; |
| 224 | |
| 225 | cache_len = mtk_crypto_queued_len(req); |
| 226 | |
| 227 | if (cache_len + areq->nbytes <= HASH_CACHE_SIZE) { |
| 228 | sg_pcopy_to_buffer(areq->src, sg_nents(areq->src), |
| 229 | req->cache + cache_len, |
| 230 | areq->nbytes, 0); |
| 231 | return 0; |
| 232 | } |
| 233 | |
| 234 | return -E2BIG; |
| 235 | } |
| 236 | |
| 237 | static int mtk_crypto_ahash_update(struct ahash_request *areq) |
| 238 | { |
| 239 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 240 | int ret; |
| 241 | |
| 242 | if (!areq->nbytes) |
| 243 | return 0; |
| 244 | |
| 245 | ret = mtk_crypto_ahash_cache(areq); |
| 246 | |
| 247 | req->len += areq->nbytes; |
| 248 | |
| 249 | if ((ret && !req->finish) || req->last_req) |
| 250 | return mtk_crypto_ahash_enqueue(areq); |
| 251 | |
| 252 | return 0; |
| 253 | } |
| 254 | |
| 255 | static int mtk_crypto_ahash_final(struct ahash_request *areq) |
| 256 | { |
| 257 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 258 | struct mtk_crypto_ahash_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(areq)); |
| 259 | |
| 260 | req->finish = true; |
| 261 | |
| 262 | if (unlikely(!req->len && !areq->nbytes && !req->hmac)) { |
| 263 | if (ctx->alg == MTK_CRYPTO_ALG_SHA1) |
| 264 | memcpy(areq->result, sha1_zero_message_hash, |
| 265 | SHA1_DIGEST_SIZE); |
| 266 | else if (ctx->alg == MTK_CRYPTO_ALG_SHA224) |
| 267 | memcpy(areq->result, sha224_zero_message_hash, |
| 268 | SHA224_DIGEST_SIZE); |
| 269 | else if (ctx->alg == MTK_CRYPTO_ALG_SHA256) |
| 270 | memcpy(areq->result, sha256_zero_message_hash, |
| 271 | SHA256_DIGEST_SIZE); |
| 272 | else if (ctx->alg == MTK_CRYPTO_ALG_SHA384) |
| 273 | memcpy(areq->result, sha384_zero_message_hash, |
| 274 | SHA384_DIGEST_SIZE); |
| 275 | else if (ctx->alg == MTK_CRYPTO_ALG_SHA512) |
| 276 | memcpy(areq->result, sha512_zero_message_hash, |
| 277 | SHA512_DIGEST_SIZE); |
| 278 | else if (ctx->alg == MTK_CRYPTO_ALG_MD5) |
| 279 | memcpy(areq->result, md5_zero_message_hash, |
| 280 | MD5_DIGEST_SIZE); |
| 281 | |
| 282 | return 0; |
| 283 | } else if (unlikely(req->digest == MTK_CRYPTO_DIGEST_XCM && |
| 284 | ctx->alg == MTK_CRYPTO_ALG_MD5 && req->len == sizeof(u32) && |
| 285 | !areq->nbytes)) { |
| 286 | memcpy(areq->result, ctx->ipad, sizeof(u32)); |
| 287 | return 0; |
| 288 | } else if (unlikely(ctx->cbcmac && req->len == AES_BLOCK_SIZE && |
| 289 | !areq->nbytes)) { |
| 290 | memset(areq->result, 0, AES_BLOCK_SIZE); |
| 291 | return 0; |
| 292 | } else if (unlikely(req->xcbcmac && req->len == AES_BLOCK_SIZE && |
| 293 | !areq->nbytes)) { |
| 294 | int i; |
| 295 | |
| 296 | for (i = 0; i < AES_BLOCK_SIZE / sizeof(u32); i++) |
| 297 | ((__be32 *) areq->result)[i] = |
| 298 | cpu_to_be32(le32_to_cpu(ctx->ipad[i + 4])); |
| 299 | areq->result[0] ^= 0x80; |
| 300 | crypto_cipher_encrypt_one(ctx->kaes, areq->result, areq->result); |
| 301 | return 0; |
| 302 | } else if (unlikely(req->hmac && (req->len == req->block_sz) && |
| 303 | !areq->nbytes)) { |
| 304 | memcpy(req->state, ctx->zero_hmac, req->state_sz); |
| 305 | req->hmac_zlen = true; |
| 306 | } else if (req->hmac) { |
| 307 | req->digest = MTK_CRYPTO_DIGEST_HMAC; |
| 308 | } |
| 309 | |
| 310 | return mtk_crypto_ahash_enqueue(areq); |
| 311 | } |
| 312 | |
| 313 | static int mtk_crypto_ahash_finup(struct ahash_request *areq) |
| 314 | { |
| 315 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 316 | |
| 317 | req->finish = true; |
| 318 | |
| 319 | mtk_crypto_ahash_update(areq); |
| 320 | return mtk_crypto_ahash_final(areq); |
| 321 | } |
| 322 | |
| 323 | static int mtk_crypto_ahash_export(struct ahash_request *areq, void *out) |
| 324 | { |
| 325 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 326 | struct mtk_crypto_ahash_export_state *export = out; |
| 327 | |
| 328 | export->len = req->len; |
| 329 | export->processed = req->processed; |
| 330 | |
| 331 | export->digest = req->digest; |
| 332 | export->sa_pointer = req->sa_pointer; |
| 333 | export->token_context = req->token_context; |
| 334 | |
| 335 | memcpy(export->state, req->state, req->state_sz); |
| 336 | memcpy(export->cache, req->cache, HASH_CACHE_SIZE); |
| 337 | |
| 338 | return 0; |
| 339 | } |
| 340 | |
| 341 | static int mtk_crypto_ahash_import(struct ahash_request *areq, const void *in) |
| 342 | { |
| 343 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 344 | const struct mtk_crypto_ahash_export_state *export = in; |
| 345 | int ret; |
| 346 | |
| 347 | ret = crypto_ahash_init(areq); |
| 348 | if (ret) |
| 349 | return ret; |
| 350 | |
| 351 | req->len = export->len; |
| 352 | req->processed = export->processed; |
| 353 | |
| 354 | req->digest = export->digest; |
| 355 | req->sa_pointer = export->sa_pointer; |
| 356 | req->token_context = export->token_context; |
| 357 | if (req->sa_pointer) |
| 358 | req->not_first = true; |
| 359 | |
| 360 | memcpy(req->cache, export->cache, HASH_CACHE_SIZE); |
| 361 | memcpy(req->state, export->state, req->state_sz); |
| 362 | |
| 363 | return 0; |
| 364 | } |
| 365 | |
| 366 | static int mtk_crypto_ahash_cra_init(struct crypto_tfm *tfm) |
| 367 | { |
| 368 | struct mtk_crypto_ahash_ctx *ctx = crypto_tfm_ctx(tfm); |
| 369 | struct mtk_crypto_alg_template *tmpl = |
| 370 | container_of(__crypto_ahash_alg(tfm->__crt_alg), |
| 371 | struct mtk_crypto_alg_template, alg.ahash); |
| 372 | |
| 373 | ctx->priv = tmpl->priv; |
| 374 | ctx->base.send = mtk_crypto_ahash_send; |
| 375 | ctx->base.handle_result = mtk_crypto_ahash_handle_result; |
| 376 | crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm), |
| 377 | sizeof(struct mtk_crypto_ahash_req)); |
| 378 | |
| 379 | return 0; |
| 380 | } |
| 381 | |
| 382 | static int mtk_crypto_sha1_init(struct ahash_request *areq) |
| 383 | { |
| 384 | struct mtk_crypto_ahash_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(areq)); |
| 385 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 386 | |
| 387 | memset(req, 0, sizeof(*req)); |
| 388 | |
| 389 | ctx->alg = MTK_CRYPTO_ALG_SHA1; |
| 390 | req->digest = MTK_CRYPTO_DIGEST_PRECOMPUTED; |
| 391 | req->state_sz = SHA1_DIGEST_SIZE; |
| 392 | req->digest_sz = SHA1_DIGEST_SIZE; |
| 393 | req->block_sz = SHA1_BLOCK_SIZE; |
| 394 | |
| 395 | return 0; |
| 396 | } |
| 397 | |
| 398 | static int mtk_crypto_sha1_digest(struct ahash_request *areq) |
| 399 | { |
| 400 | int ret = mtk_crypto_sha1_init(areq); |
| 401 | |
| 402 | if (ret) |
| 403 | return ret; |
| 404 | |
| 405 | return mtk_crypto_ahash_finup(areq); |
| 406 | } |
| 407 | |
| 408 | static void mtk_crypto_ahash_cra_exit(struct crypto_tfm *tfm) |
| 409 | { |
| 410 | } |
| 411 | |
| 412 | struct mtk_crypto_alg_template mtk_crypto_sha1 = { |
| 413 | .type = MTK_CRYPTO_ALG_TYPE_AHASH, |
| 414 | .alg.ahash = { |
| 415 | .init = mtk_crypto_sha1_init, |
| 416 | .update = mtk_crypto_ahash_update, |
| 417 | .final = mtk_crypto_ahash_final, |
| 418 | .finup = mtk_crypto_ahash_finup, |
| 419 | .digest = mtk_crypto_sha1_digest, |
| 420 | .export = mtk_crypto_ahash_export, |
| 421 | .import = mtk_crypto_ahash_import, |
| 422 | .halg = { |
| 423 | .digestsize = SHA1_DIGEST_SIZE, |
| 424 | .statesize = sizeof(struct mtk_crypto_ahash_export_state), |
| 425 | .base = { |
| 426 | .cra_name = "sha1", |
| 427 | .cra_driver_name = "crypto-eip-sha1", |
| 428 | .cra_priority = MTK_CRYPTO_PRIORITY, |
| 429 | .cra_flags = CRYPTO_ALG_ASYNC | |
| 430 | CRYPTO_ALG_KERN_DRIVER_ONLY, |
| 431 | .cra_blocksize = SHA1_BLOCK_SIZE, |
| 432 | .cra_ctxsize = sizeof(struct mtk_crypto_ahash_ctx), |
| 433 | .cra_init = mtk_crypto_ahash_cra_init, |
| 434 | .cra_exit = mtk_crypto_ahash_cra_exit, |
| 435 | .cra_module = THIS_MODULE, |
| 436 | }, |
| 437 | }, |
| 438 | }, |
| 439 | }; |
| 440 | |
| 441 | static int mtk_crypto_hmac_sha1_init(struct ahash_request *areq) |
| 442 | { |
| 443 | struct mtk_crypto_ahash_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(areq)); |
| 444 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 445 | |
| 446 | memset(req, 0, sizeof(*req)); |
| 447 | |
| 448 | memcpy(req->state, ctx->ipad, SHA1_DIGEST_SIZE); |
| 449 | req->sa_pointer = ctx->ipad_sa; |
| 450 | req->token_context = ctx->ipad_token; |
| 451 | req->not_first = true; |
| 452 | req->len = SHA1_BLOCK_SIZE; |
| 453 | req->processed = SHA1_BLOCK_SIZE; |
| 454 | |
| 455 | ctx->alg = MTK_CRYPTO_ALG_SHA1; |
| 456 | req->digest = MTK_CRYPTO_DIGEST_PRECOMPUTED; |
| 457 | req->state_sz = SHA1_DIGEST_SIZE; |
| 458 | req->digest_sz = SHA1_DIGEST_SIZE; |
| 459 | req->block_sz = SHA1_BLOCK_SIZE; |
| 460 | req->hmac = true; |
| 461 | |
| 462 | return 0; |
| 463 | } |
| 464 | |
| 465 | static int mtk_crypto_hmac_sha1_digest(struct ahash_request *areq) |
| 466 | { |
| 467 | int ret = mtk_crypto_hmac_sha1_init(areq); |
| 468 | |
| 469 | if (ret) |
| 470 | return ret; |
| 471 | |
| 472 | return mtk_crypto_ahash_finup(areq); |
| 473 | } |
| 474 | |
| 475 | struct mtk_crypto_ahash_result { |
| 476 | struct completion completion; |
| 477 | int error; |
| 478 | }; |
| 479 | |
| 480 | static void mtk_crypto_ahash_complete(struct crypto_async_request *req, int error) |
| 481 | { |
| 482 | struct mtk_crypto_ahash_result *result = req->data; |
| 483 | |
| 484 | if (error == -EINPROGRESS) |
| 485 | return; |
| 486 | |
| 487 | result->error = error; |
| 488 | complete(&result->completion); |
| 489 | } |
| 490 | |
| 491 | static int mtk_crypto_hmac_init_pad(struct ahash_request *areq, unsigned int blocksize, |
| 492 | const u8 *key, unsigned int keylen, |
| 493 | u8 *ipad, u8 *opad) |
| 494 | { |
| 495 | struct mtk_crypto_ahash_result result; |
| 496 | struct scatterlist sg; |
| 497 | int ret, i; |
| 498 | u8 *keydup; |
| 499 | |
| 500 | if (keylen <= blocksize) { |
| 501 | memcpy(ipad, key, keylen); |
| 502 | } else { |
| 503 | keydup = kmemdup(key, keylen, GFP_KERNEL); |
| 504 | if (!keydup) |
| 505 | return -ENOMEM; |
| 506 | |
| 507 | ahash_request_set_callback(areq, CRYPTO_TFM_REQ_MAY_BACKLOG, |
| 508 | mtk_crypto_ahash_complete, &result); |
| 509 | sg_init_one(&sg, keydup, keylen); |
| 510 | ahash_request_set_crypt(areq, &sg, ipad, keylen); |
| 511 | init_completion(&result.completion); |
| 512 | |
| 513 | ret = crypto_ahash_digest(areq); |
| 514 | if (ret == -EINPROGRESS || ret == -EBUSY) { |
| 515 | wait_for_completion_interruptible(&result.completion); |
| 516 | ret = result.error; |
| 517 | } |
| 518 | |
| 519 | memzero_explicit(keydup, keylen); |
| 520 | kfree(keydup); |
| 521 | |
| 522 | if (ret) |
| 523 | return ret; |
| 524 | |
| 525 | keylen = crypto_ahash_digestsize(crypto_ahash_reqtfm(areq)); |
| 526 | } |
| 527 | |
| 528 | memset(ipad + keylen, 0, blocksize - keylen); |
| 529 | memcpy(opad, ipad, blocksize); |
| 530 | |
| 531 | for (i = 0; i < blocksize; i++) { |
| 532 | ipad[i] ^= HMAC_IPAD_VALUE; |
| 533 | opad[i] ^= HMAC_OPAD_VALUE; |
| 534 | } |
| 535 | |
| 536 | return 0; |
| 537 | } |
| 538 | |
| 539 | static int mtk_crypto_hmac_init_iv(struct ahash_request *areq, unsigned int blocksize, |
| 540 | u8 *pad, void *state, bool zero) |
| 541 | { |
| 542 | struct mtk_crypto_ahash_result result; |
| 543 | struct mtk_crypto_ahash_req *req; |
| 544 | struct scatterlist sg; |
| 545 | int ret; |
| 546 | |
| 547 | ahash_request_set_callback(areq, CRYPTO_TFM_REQ_MAY_BACKLOG, |
| 548 | mtk_crypto_ahash_complete, &result); |
| 549 | sg_init_one(&sg, pad, blocksize); |
| 550 | ahash_request_set_crypt(areq, &sg, pad, blocksize); |
| 551 | init_completion(&result.completion); |
| 552 | |
| 553 | ret = crypto_ahash_init(areq); |
| 554 | if (ret) |
| 555 | return ret; |
| 556 | |
| 557 | req = ahash_request_ctx(areq); |
| 558 | req->last_req = !zero; |
| 559 | |
| 560 | if (zero) |
| 561 | ret = crypto_ahash_finup(areq); |
| 562 | else |
| 563 | ret = crypto_ahash_update(areq); |
| 564 | if (ret && ret != -EINPROGRESS && ret != -EBUSY) |
| 565 | return ret; |
| 566 | |
| 567 | wait_for_completion_interruptible(&result.completion); |
| 568 | if (result.error) |
| 569 | return result.error; |
| 570 | |
| 571 | return crypto_ahash_export(areq, state); |
| 572 | } |
| 573 | |
| 574 | int mtk_crypto_zero_hmac_setkey(const char *alg, const u8 *key, unsigned int keylen, |
| 575 | void *istate) |
| 576 | { |
| 577 | struct ahash_request *areq; |
| 578 | struct crypto_ahash *tfm; |
| 579 | unsigned int blocksize; |
| 580 | u8 *ipad, *opad; |
| 581 | int ret; |
| 582 | |
| 583 | tfm = crypto_alloc_ahash(alg, 0, 0); |
| 584 | if (IS_ERR(tfm)) |
| 585 | return PTR_ERR(tfm); |
| 586 | |
| 587 | areq = ahash_request_alloc(tfm, GFP_KERNEL); |
| 588 | if (!areq) { |
| 589 | ret = -ENOMEM; |
| 590 | goto free_ahash; |
| 591 | } |
| 592 | |
| 593 | crypto_ahash_clear_flags(tfm, ~0); |
| 594 | blocksize = crypto_tfm_alg_blocksize(crypto_ahash_tfm(tfm)); |
| 595 | |
| 596 | ipad = kcalloc(2, blocksize, GFP_KERNEL); |
| 597 | if (!ipad) { |
| 598 | ret = -ENOMEM; |
| 599 | goto free_request; |
| 600 | } |
| 601 | |
| 602 | opad = ipad + blocksize; |
| 603 | |
| 604 | ret = mtk_crypto_hmac_init_pad(areq, blocksize, key, keylen, ipad, opad); |
| 605 | if (ret) |
| 606 | goto free_ipad; |
| 607 | |
| 608 | ret = mtk_crypto_hmac_init_iv(areq, blocksize, ipad, istate, true); |
| 609 | if (ret) |
| 610 | goto free_ipad; |
| 611 | |
| 612 | free_ipad: |
| 613 | kfree(ipad); |
| 614 | free_request: |
| 615 | ahash_request_free(areq); |
| 616 | free_ahash: |
| 617 | crypto_free_ahash(tfm); |
| 618 | |
| 619 | return ret; |
| 620 | } |
| 621 | |
| 622 | int mtk_crypto_hmac_setkey(const char *alg, const u8 *key, unsigned int keylen, |
| 623 | void *istate, void *ostate) |
| 624 | { |
| 625 | struct ahash_request *areq; |
| 626 | struct crypto_ahash *tfm; |
| 627 | unsigned int blocksize; |
| 628 | u8 *ipad, *opad; |
| 629 | int ret; |
| 630 | |
| 631 | tfm = crypto_alloc_ahash(alg, 0, 0); |
| 632 | if (IS_ERR(tfm)) |
| 633 | return PTR_ERR(tfm); |
| 634 | |
| 635 | areq = ahash_request_alloc(tfm, GFP_KERNEL); |
| 636 | if (!areq) { |
| 637 | ret = -ENOMEM; |
| 638 | goto free_ahash; |
| 639 | } |
| 640 | |
| 641 | crypto_ahash_clear_flags(tfm, ~0); |
| 642 | blocksize = crypto_tfm_alg_blocksize(crypto_ahash_tfm(tfm)); |
| 643 | |
| 644 | ipad = kcalloc(2, blocksize, GFP_KERNEL); |
| 645 | if (!ipad) { |
| 646 | ret = -ENOMEM; |
| 647 | goto free_request; |
| 648 | } |
| 649 | |
| 650 | opad = ipad + blocksize; |
| 651 | |
| 652 | ret = mtk_crypto_hmac_init_pad(areq, blocksize, key, keylen, ipad, opad); |
| 653 | if (ret) |
| 654 | goto free_ipad; |
| 655 | |
| 656 | ret = mtk_crypto_hmac_init_iv(areq, blocksize, ipad, istate, false); |
| 657 | if (ret) |
| 658 | goto free_ipad; |
| 659 | |
| 660 | ret = mtk_crypto_hmac_init_iv(areq, blocksize, opad, ostate, false); |
| 661 | |
| 662 | free_ipad: |
| 663 | kfree(ipad); |
| 664 | free_request: |
| 665 | ahash_request_free(areq); |
| 666 | free_ahash: |
| 667 | crypto_free_ahash(tfm); |
| 668 | |
| 669 | return ret; |
| 670 | } |
| 671 | |
| 672 | static int mtk_crypto_hmac_alg_setkey(struct crypto_ahash *tfm, const u8 *key, |
| 673 | unsigned int keylen, const char *alg, |
| 674 | unsigned int state_sz) |
| 675 | { |
| 676 | struct mtk_crypto_ahash_ctx *ctx = crypto_tfm_ctx(crypto_ahash_tfm(tfm)); |
| 677 | struct mtk_crypto_ahash_export_state istate, ostate, zeroi; |
| 678 | int ret; |
| 679 | |
| 680 | ret = mtk_crypto_hmac_setkey(alg, key, keylen, &istate, &ostate); |
| 681 | if (ret) |
| 682 | return ret; |
| 683 | |
| 684 | ret = mtk_crypto_zero_hmac_setkey(alg, key, keylen, &zeroi); |
| 685 | if (ret) |
| 686 | return ret; |
| 687 | |
| 688 | memcpy(ctx->zero_hmac, &zeroi.state, state_sz); |
| 689 | memcpy(ctx->ipad, &istate.state, state_sz); |
| 690 | memcpy(ctx->opad, &ostate.state, state_sz); |
| 691 | ctx->ipad_sa = istate.sa_pointer; |
| 692 | ctx->ipad_token = istate.token_context; |
| 693 | ctx->opad_sa = ostate.sa_pointer; |
| 694 | ctx->opad_token = ostate.token_context; |
| 695 | |
| 696 | return 0; |
| 697 | } |
| 698 | |
| 699 | static int mtk_crypto_hmac_sha1_setkey(struct crypto_ahash *tfm, const u8 *key, |
| 700 | unsigned int keylen) |
| 701 | { |
| 702 | return mtk_crypto_hmac_alg_setkey(tfm, key, keylen, "crypto-eip-sha1", |
| 703 | SHA1_DIGEST_SIZE); |
| 704 | } |
| 705 | |
| 706 | struct mtk_crypto_alg_template mtk_crypto_hmac_sha1 = { |
| 707 | .type = MTK_CRYPTO_ALG_TYPE_AHASH, |
| 708 | .alg.ahash = { |
| 709 | .init = mtk_crypto_hmac_sha1_init, |
| 710 | .update = mtk_crypto_ahash_update, |
| 711 | .final = mtk_crypto_ahash_final, |
| 712 | .finup = mtk_crypto_ahash_finup, |
| 713 | .digest = mtk_crypto_hmac_sha1_digest, |
| 714 | .setkey = mtk_crypto_hmac_sha1_setkey, |
| 715 | .export = mtk_crypto_ahash_export, |
| 716 | .import = mtk_crypto_ahash_import, |
| 717 | .halg = { |
| 718 | .digestsize = SHA1_DIGEST_SIZE, |
| 719 | .statesize = sizeof(struct mtk_crypto_ahash_export_state), |
| 720 | .base = { |
| 721 | .cra_name = "hmac(sha1)", |
| 722 | .cra_driver_name = "crypto-eip-hmac-sha1", |
| 723 | .cra_priority = MTK_CRYPTO_PRIORITY, |
| 724 | .cra_flags = CRYPTO_ALG_ASYNC | |
| 725 | CRYPTO_ALG_KERN_DRIVER_ONLY, |
| 726 | .cra_blocksize = SHA1_BLOCK_SIZE, |
| 727 | .cra_ctxsize = sizeof(struct mtk_crypto_ahash_ctx), |
| 728 | .cra_init = mtk_crypto_ahash_cra_init, |
| 729 | .cra_exit = mtk_crypto_ahash_cra_exit, |
| 730 | .cra_module = THIS_MODULE, |
| 731 | }, |
| 732 | }, |
| 733 | }, |
| 734 | }; |
| 735 | |
| 736 | static int mtk_crypto_sha256_init(struct ahash_request *areq) |
| 737 | { |
| 738 | struct mtk_crypto_ahash_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(areq)); |
| 739 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 740 | |
| 741 | memset(req, 0, sizeof(*req)); |
| 742 | |
| 743 | ctx->alg = MTK_CRYPTO_ALG_SHA256; |
| 744 | req->digest = MTK_CRYPTO_DIGEST_PRECOMPUTED; |
| 745 | req->state_sz = SHA256_DIGEST_SIZE; |
| 746 | req->digest_sz = SHA256_DIGEST_SIZE; |
| 747 | req->block_sz = SHA256_BLOCK_SIZE; |
| 748 | |
| 749 | return 0; |
| 750 | } |
| 751 | |
| 752 | static int mtk_crypto_sha256_digest(struct ahash_request *areq) |
| 753 | { |
| 754 | int ret = mtk_crypto_sha256_init(areq); |
| 755 | |
| 756 | if (ret) |
| 757 | return ret; |
| 758 | |
| 759 | return mtk_crypto_ahash_finup(areq); |
| 760 | } |
| 761 | |
| 762 | struct mtk_crypto_alg_template mtk_crypto_sha256 = { |
| 763 | .type = MTK_CRYPTO_ALG_TYPE_AHASH, |
| 764 | .alg.ahash = { |
| 765 | .init = mtk_crypto_sha256_init, |
| 766 | .update = mtk_crypto_ahash_update, |
| 767 | .final = mtk_crypto_ahash_final, |
| 768 | .finup = mtk_crypto_ahash_finup, |
| 769 | .digest = mtk_crypto_sha256_digest, |
| 770 | .export = mtk_crypto_ahash_export, |
| 771 | .import = mtk_crypto_ahash_import, |
| 772 | .halg = { |
| 773 | .digestsize = SHA256_DIGEST_SIZE, |
| 774 | .statesize = sizeof(struct mtk_crypto_ahash_export_state), |
| 775 | .base = { |
| 776 | .cra_name = "sha256", |
| 777 | .cra_driver_name = "crypto-eip-sha256", |
| 778 | .cra_priority = MTK_CRYPTO_PRIORITY, |
| 779 | .cra_flags = CRYPTO_ALG_ASYNC | |
| 780 | CRYPTO_ALG_KERN_DRIVER_ONLY, |
| 781 | .cra_blocksize = SHA256_BLOCK_SIZE, |
| 782 | .cra_ctxsize = sizeof(struct mtk_crypto_ahash_ctx), |
| 783 | .cra_init = mtk_crypto_ahash_cra_init, |
| 784 | .cra_exit = mtk_crypto_ahash_cra_exit, |
| 785 | .cra_module = THIS_MODULE, |
| 786 | }, |
| 787 | }, |
| 788 | }, |
| 789 | }; |
| 790 | |
| 791 | static int mtk_crypto_sha224_init(struct ahash_request *areq) |
| 792 | { |
| 793 | struct mtk_crypto_ahash_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(areq)); |
| 794 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 795 | |
| 796 | memset(req, 0, sizeof(*req)); |
| 797 | |
| 798 | ctx->alg = MTK_CRYPTO_ALG_SHA224; |
| 799 | req->digest = MTK_CRYPTO_DIGEST_PRECOMPUTED; |
| 800 | req->state_sz = SHA256_DIGEST_SIZE; |
| 801 | req->digest_sz = SHA256_DIGEST_SIZE; |
| 802 | req->block_sz = SHA256_BLOCK_SIZE; |
| 803 | |
| 804 | return 0; |
| 805 | } |
| 806 | |
| 807 | static int mtk_crypto_sha224_digest(struct ahash_request *areq) |
| 808 | { |
| 809 | int ret = mtk_crypto_sha224_init(areq); |
| 810 | |
| 811 | if (ret) |
| 812 | return ret; |
| 813 | |
| 814 | return mtk_crypto_ahash_finup(areq); |
| 815 | } |
| 816 | |
| 817 | struct mtk_crypto_alg_template mtk_crypto_sha224 = { |
| 818 | .type = MTK_CRYPTO_ALG_TYPE_AHASH, |
| 819 | .alg.ahash = { |
| 820 | .init = mtk_crypto_sha224_init, |
| 821 | .update = mtk_crypto_ahash_update, |
| 822 | .final = mtk_crypto_ahash_final, |
| 823 | .finup = mtk_crypto_ahash_finup, |
| 824 | .digest = mtk_crypto_sha224_digest, |
| 825 | .export = mtk_crypto_ahash_export, |
| 826 | .import = mtk_crypto_ahash_import, |
| 827 | .halg = { |
| 828 | .digestsize = SHA224_DIGEST_SIZE, |
| 829 | .statesize = sizeof(struct mtk_crypto_ahash_export_state), |
| 830 | .base = { |
| 831 | .cra_name = "sha224", |
| 832 | .cra_driver_name = "crypto-eip-sha224", |
| 833 | .cra_priority = MTK_CRYPTO_PRIORITY, |
| 834 | .cra_flags = CRYPTO_ALG_ASYNC | |
| 835 | CRYPTO_ALG_KERN_DRIVER_ONLY, |
| 836 | .cra_blocksize = SHA224_BLOCK_SIZE, |
| 837 | .cra_ctxsize = sizeof(struct mtk_crypto_ahash_ctx), |
| 838 | .cra_init = mtk_crypto_ahash_cra_init, |
| 839 | .cra_exit = mtk_crypto_ahash_cra_exit, |
| 840 | .cra_module = THIS_MODULE, |
| 841 | }, |
| 842 | }, |
| 843 | }, |
| 844 | }; |
| 845 | |
| 846 | static int mtk_crypto_hmac_sha224_setkey(struct crypto_ahash *tfm, const u8 *key, |
| 847 | unsigned int keylen) |
| 848 | { |
| 849 | return mtk_crypto_hmac_alg_setkey(tfm, key, keylen, "crypto-eip-sha224", |
| 850 | SHA256_DIGEST_SIZE); |
| 851 | } |
| 852 | |
| 853 | static int mtk_crypto_hmac_sha224_init(struct ahash_request *areq) |
| 854 | { |
| 855 | struct mtk_crypto_ahash_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(areq)); |
| 856 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 857 | |
| 858 | memset(req, 0, sizeof(*req)); |
| 859 | |
| 860 | memcpy(req->state, ctx->ipad, SHA224_DIGEST_SIZE); |
| 861 | |
| 862 | req->sa_pointer = ctx->ipad_sa; |
| 863 | req->token_context = ctx->ipad_token; |
| 864 | req->not_first = true; |
| 865 | req->len = SHA224_BLOCK_SIZE; |
| 866 | req->processed = SHA224_BLOCK_SIZE; |
| 867 | |
| 868 | ctx->alg = MTK_CRYPTO_ALG_SHA224; |
| 869 | req->digest = MTK_CRYPTO_DIGEST_PRECOMPUTED; |
| 870 | req->state_sz = SHA224_DIGEST_SIZE; |
| 871 | req->digest_sz = SHA224_DIGEST_SIZE; |
| 872 | req->block_sz = SHA224_BLOCK_SIZE; |
| 873 | req->hmac = true; |
| 874 | |
| 875 | return 0; |
| 876 | } |
| 877 | |
| 878 | static int mtk_crypto_hmac_sha224_digest(struct ahash_request *areq) |
| 879 | { |
| 880 | int ret = mtk_crypto_hmac_sha224_init(areq); |
| 881 | |
| 882 | if (ret) |
| 883 | return ret; |
| 884 | return mtk_crypto_ahash_finup(areq); |
| 885 | } |
| 886 | |
| 887 | struct mtk_crypto_alg_template mtk_crypto_hmac_sha224 = { |
| 888 | .type = MTK_CRYPTO_ALG_TYPE_AHASH, |
| 889 | .alg.ahash = { |
| 890 | .init = mtk_crypto_hmac_sha224_init, |
| 891 | .update = mtk_crypto_ahash_update, |
| 892 | .final = mtk_crypto_ahash_final, |
| 893 | .finup = mtk_crypto_ahash_finup, |
| 894 | .digest = mtk_crypto_hmac_sha224_digest, |
| 895 | .setkey = mtk_crypto_hmac_sha224_setkey, |
| 896 | .export = mtk_crypto_ahash_export, |
| 897 | .import = mtk_crypto_ahash_import, |
| 898 | .halg = { |
| 899 | .digestsize = SHA224_DIGEST_SIZE, |
| 900 | .statesize = sizeof(struct mtk_crypto_ahash_export_state), |
| 901 | .base = { |
| 902 | .cra_name = "hmac(sha224)", |
| 903 | .cra_driver_name = "crypto-eip-hmac-sha224", |
| 904 | .cra_priority = MTK_CRYPTO_PRIORITY, |
| 905 | .cra_flags = CRYPTO_ALG_ASYNC | |
| 906 | CRYPTO_ALG_KERN_DRIVER_ONLY, |
| 907 | .cra_blocksize = SHA224_BLOCK_SIZE, |
| 908 | .cra_ctxsize = sizeof(struct mtk_crypto_ahash_ctx), |
| 909 | .cra_init = mtk_crypto_ahash_cra_init, |
| 910 | .cra_exit = mtk_crypto_ahash_cra_exit, |
| 911 | .cra_module = THIS_MODULE, |
| 912 | }, |
| 913 | }, |
| 914 | }, |
| 915 | }; |
| 916 | |
| 917 | static int mtk_crypto_hmac_sha256_setkey(struct crypto_ahash *tfm, const u8 *key, |
| 918 | unsigned int keylen) |
| 919 | { |
| 920 | return mtk_crypto_hmac_alg_setkey(tfm, key, keylen, "crypto-eip-sha256", |
| 921 | SHA256_DIGEST_SIZE); |
| 922 | } |
| 923 | |
| 924 | static int mtk_crypto_hmac_sha256_init(struct ahash_request *areq) |
| 925 | { |
| 926 | struct mtk_crypto_ahash_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(areq)); |
| 927 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 928 | |
| 929 | memset(req, 0, sizeof(*req)); |
| 930 | |
| 931 | memcpy(req->state, ctx->ipad, SHA256_DIGEST_SIZE); |
| 932 | req->sa_pointer = ctx->ipad_sa; |
| 933 | req->token_context = ctx->ipad_token; |
| 934 | req->not_first = true; |
| 935 | req->len = SHA256_BLOCK_SIZE; |
| 936 | req->processed = SHA256_BLOCK_SIZE; |
| 937 | |
| 938 | ctx->alg = MTK_CRYPTO_ALG_SHA256; |
| 939 | req->digest = MTK_CRYPTO_DIGEST_PRECOMPUTED; |
| 940 | req->state_sz = SHA256_DIGEST_SIZE; |
| 941 | req->digest_sz = SHA256_DIGEST_SIZE; |
| 942 | req->block_sz = SHA256_BLOCK_SIZE; |
| 943 | req->hmac = true; |
| 944 | |
| 945 | return 0; |
| 946 | } |
| 947 | |
| 948 | static int mtk_crypto_hmac_sha256_digest(struct ahash_request *areq) |
| 949 | { |
| 950 | int ret = mtk_crypto_hmac_sha256_init(areq); |
| 951 | |
| 952 | if (ret) |
| 953 | return ret; |
| 954 | return mtk_crypto_ahash_finup(areq); |
| 955 | } |
| 956 | |
| 957 | struct mtk_crypto_alg_template mtk_crypto_hmac_sha256 = { |
| 958 | .type = MTK_CRYPTO_ALG_TYPE_AHASH, |
| 959 | .alg.ahash = { |
| 960 | .init = mtk_crypto_hmac_sha256_init, |
| 961 | .update = mtk_crypto_ahash_update, |
| 962 | .final = mtk_crypto_ahash_final, |
| 963 | .finup = mtk_crypto_ahash_finup, |
| 964 | .digest = mtk_crypto_hmac_sha256_digest, |
| 965 | .setkey = mtk_crypto_hmac_sha256_setkey, |
| 966 | .export = mtk_crypto_ahash_export, |
| 967 | .import = mtk_crypto_ahash_import, |
| 968 | .halg = { |
| 969 | .digestsize = SHA256_DIGEST_SIZE, |
| 970 | .statesize = sizeof(struct mtk_crypto_ahash_export_state), |
| 971 | .base = { |
| 972 | .cra_name = "hmac(sha256)", |
| 973 | .cra_driver_name = "crypto-eip-hmac-sha256", |
| 974 | .cra_priority = MTK_CRYPTO_PRIORITY, |
| 975 | .cra_flags = CRYPTO_ALG_ASYNC | |
| 976 | CRYPTO_ALG_KERN_DRIVER_ONLY, |
| 977 | .cra_blocksize = SHA256_BLOCK_SIZE, |
| 978 | .cra_ctxsize = sizeof(struct mtk_crypto_ahash_ctx), |
| 979 | .cra_init = mtk_crypto_ahash_cra_init, |
| 980 | .cra_exit = mtk_crypto_ahash_cra_exit, |
| 981 | .cra_module = THIS_MODULE, |
| 982 | }, |
| 983 | }, |
| 984 | }, |
| 985 | }; |
| 986 | |
| 987 | static int mtk_crypto_sha512_init(struct ahash_request *areq) |
| 988 | { |
| 989 | struct mtk_crypto_ahash_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(areq)); |
| 990 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 991 | |
| 992 | memset(req, 0, sizeof(*req)); |
| 993 | |
| 994 | ctx->alg = MTK_CRYPTO_ALG_SHA512; |
| 995 | req->digest = MTK_CRYPTO_DIGEST_PRECOMPUTED; |
| 996 | req->state_sz = SHA512_DIGEST_SIZE; |
| 997 | req->digest_sz = SHA512_DIGEST_SIZE; |
| 998 | req->block_sz = SHA512_BLOCK_SIZE; |
| 999 | |
| 1000 | return 0; |
| 1001 | } |
| 1002 | |
| 1003 | static int mtk_crypto_sha512_digest(struct ahash_request *areq) |
| 1004 | { |
| 1005 | int ret = mtk_crypto_sha512_init(areq); |
| 1006 | |
| 1007 | if (ret) |
| 1008 | return ret; |
| 1009 | return mtk_crypto_ahash_finup(areq); |
| 1010 | } |
| 1011 | |
| 1012 | struct mtk_crypto_alg_template mtk_crypto_sha512 = { |
| 1013 | .type = MTK_CRYPTO_ALG_TYPE_AHASH, |
| 1014 | .alg.ahash = { |
| 1015 | .init = mtk_crypto_sha512_init, |
| 1016 | .update = mtk_crypto_ahash_update, |
| 1017 | .final = mtk_crypto_ahash_final, |
| 1018 | .finup = mtk_crypto_ahash_finup, |
| 1019 | .digest = mtk_crypto_sha512_digest, |
| 1020 | .export = mtk_crypto_ahash_export, |
| 1021 | .import = mtk_crypto_ahash_import, |
| 1022 | .halg = { |
| 1023 | .digestsize = SHA512_DIGEST_SIZE, |
| 1024 | .statesize = sizeof(struct mtk_crypto_ahash_ctx), |
| 1025 | .base = { |
| 1026 | .cra_name = "sha512", |
| 1027 | .cra_driver_name = "crypto-eip-sha512", |
| 1028 | .cra_priority = MTK_CRYPTO_PRIORITY, |
| 1029 | .cra_flags = CRYPTO_ALG_ASYNC | |
| 1030 | CRYPTO_ALG_KERN_DRIVER_ONLY, |
| 1031 | .cra_blocksize = SHA512_BLOCK_SIZE, |
| 1032 | .cra_ctxsize = sizeof(struct mtk_crypto_ahash_ctx), |
| 1033 | .cra_init = mtk_crypto_ahash_cra_init, |
| 1034 | .cra_exit = mtk_crypto_ahash_cra_exit, |
| 1035 | .cra_module = THIS_MODULE, |
| 1036 | }, |
| 1037 | }, |
| 1038 | }, |
| 1039 | }; |
| 1040 | |
| 1041 | static int mtk_crypto_sha384_init(struct ahash_request *areq) |
| 1042 | { |
| 1043 | struct mtk_crypto_ahash_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(areq)); |
| 1044 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 1045 | |
| 1046 | memset(req, 0, sizeof(*req)); |
| 1047 | |
| 1048 | ctx->alg = MTK_CRYPTO_ALG_SHA384; |
| 1049 | req->digest = MTK_CRYPTO_DIGEST_PRECOMPUTED; |
| 1050 | req->state_sz = SHA512_DIGEST_SIZE; |
| 1051 | req->digest_sz = SHA512_DIGEST_SIZE; |
| 1052 | req->block_sz = SHA384_BLOCK_SIZE; |
| 1053 | |
| 1054 | return 0; |
| 1055 | } |
| 1056 | |
| 1057 | static int mtk_crypto_sha384_digest(struct ahash_request *areq) |
| 1058 | { |
| 1059 | int ret = mtk_crypto_sha384_init(areq); |
| 1060 | |
| 1061 | if (ret) |
| 1062 | return ret; |
| 1063 | |
| 1064 | return mtk_crypto_ahash_finup(areq); |
| 1065 | } |
| 1066 | |
| 1067 | struct mtk_crypto_alg_template mtk_crypto_sha384 = { |
| 1068 | .type = MTK_CRYPTO_ALG_TYPE_AHASH, |
| 1069 | .alg.ahash = { |
| 1070 | .init = mtk_crypto_sha384_init, |
| 1071 | .update = mtk_crypto_ahash_update, |
| 1072 | .final = mtk_crypto_ahash_final, |
| 1073 | .finup = mtk_crypto_ahash_finup, |
| 1074 | .digest = mtk_crypto_sha384_digest, |
| 1075 | .export = mtk_crypto_ahash_export, |
| 1076 | .import = mtk_crypto_ahash_import, |
| 1077 | .halg = { |
| 1078 | .digestsize = SHA384_DIGEST_SIZE, |
| 1079 | .statesize = sizeof(struct mtk_crypto_ahash_ctx), |
| 1080 | .base = { |
| 1081 | .cra_name = "sha384", |
| 1082 | .cra_driver_name = "crypto-eip-sha384", |
| 1083 | .cra_priority = MTK_CRYPTO_PRIORITY, |
| 1084 | .cra_flags = CRYPTO_ALG_ASYNC | |
| 1085 | CRYPTO_ALG_KERN_DRIVER_ONLY, |
| 1086 | .cra_blocksize = SHA384_BLOCK_SIZE, |
| 1087 | .cra_ctxsize = sizeof(struct mtk_crypto_ahash_ctx), |
| 1088 | .cra_init = mtk_crypto_ahash_cra_init, |
| 1089 | .cra_exit = mtk_crypto_ahash_cra_exit, |
| 1090 | .cra_module = THIS_MODULE, |
| 1091 | }, |
| 1092 | }, |
| 1093 | }, |
| 1094 | }; |
| 1095 | |
| 1096 | static int mtk_crypto_hmac_sha512_setkey(struct crypto_ahash *tfm, const u8 *key, |
| 1097 | unsigned int keylen) |
| 1098 | { |
| 1099 | return mtk_crypto_hmac_alg_setkey(tfm, key, keylen, "crypto-eip-sha512", |
| 1100 | SHA512_DIGEST_SIZE); |
| 1101 | } |
| 1102 | |
| 1103 | static int mtk_crypto_hmac_sha512_init(struct ahash_request *areq) |
| 1104 | { |
| 1105 | struct mtk_crypto_ahash_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(areq)); |
| 1106 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 1107 | |
| 1108 | memset(req, 0, sizeof(*req)); |
| 1109 | |
| 1110 | memcpy(req->state, ctx->ipad, SHA512_DIGEST_SIZE); |
| 1111 | req->sa_pointer = ctx->ipad_sa; |
| 1112 | req->token_context = ctx->ipad_token; |
| 1113 | req->not_first = true; |
| 1114 | req->len = SHA512_BLOCK_SIZE; |
| 1115 | req->processed = SHA512_BLOCK_SIZE; |
| 1116 | |
| 1117 | ctx->alg = MTK_CRYPTO_ALG_SHA512; |
| 1118 | req->digest = MTK_CRYPTO_DIGEST_PRECOMPUTED; |
| 1119 | req->state_sz = SHA512_DIGEST_SIZE; |
| 1120 | req->digest_sz = SHA512_DIGEST_SIZE; |
| 1121 | req->block_sz = SHA512_BLOCK_SIZE; |
| 1122 | req->hmac = true; |
| 1123 | |
| 1124 | return 0; |
| 1125 | } |
| 1126 | |
| 1127 | static int mtk_crypto_hmac_sha512_digest(struct ahash_request *areq) |
| 1128 | { |
| 1129 | int ret = mtk_crypto_hmac_sha512_init(areq); |
| 1130 | |
| 1131 | if (ret) |
| 1132 | return ret; |
| 1133 | |
| 1134 | return mtk_crypto_ahash_finup(areq); |
| 1135 | } |
| 1136 | |
| 1137 | struct mtk_crypto_alg_template mtk_crypto_hmac_sha512 = { |
| 1138 | .type = MTK_CRYPTO_ALG_TYPE_AHASH, |
| 1139 | .alg.ahash = { |
| 1140 | .init = mtk_crypto_hmac_sha512_init, |
| 1141 | .update = mtk_crypto_ahash_update, |
| 1142 | .final = mtk_crypto_ahash_final, |
| 1143 | .finup = mtk_crypto_ahash_finup, |
| 1144 | .digest = mtk_crypto_hmac_sha512_digest, |
| 1145 | .setkey = mtk_crypto_hmac_sha512_setkey, |
| 1146 | .export = mtk_crypto_ahash_export, |
| 1147 | .import = mtk_crypto_ahash_import, |
| 1148 | .halg = { |
| 1149 | .digestsize = SHA512_DIGEST_SIZE, |
| 1150 | .statesize = sizeof(struct mtk_crypto_ahash_export_state), |
| 1151 | .base = { |
| 1152 | .cra_name = "hmac(sha512)", |
| 1153 | .cra_driver_name = "crypto-eip-hmac-sha512", |
| 1154 | .cra_priority = MTK_CRYPTO_PRIORITY, |
| 1155 | .cra_flags = CRYPTO_ALG_ASYNC | |
| 1156 | CRYPTO_ALG_KERN_DRIVER_ONLY, |
| 1157 | .cra_blocksize = SHA512_BLOCK_SIZE, |
| 1158 | .cra_ctxsize = sizeof(struct mtk_crypto_ahash_ctx), |
| 1159 | .cra_init = mtk_crypto_ahash_cra_init, |
| 1160 | .cra_exit = mtk_crypto_ahash_cra_exit, |
| 1161 | .cra_module = THIS_MODULE, |
| 1162 | }, |
| 1163 | }, |
| 1164 | }, |
| 1165 | }; |
| 1166 | |
| 1167 | static int mtk_crypto_hmac_sha384_setkey(struct crypto_ahash *tfm, const u8 *key, |
| 1168 | unsigned int keylen) |
| 1169 | { |
| 1170 | return mtk_crypto_hmac_alg_setkey(tfm, key, keylen, "crypto-eip-sha384", |
| 1171 | SHA512_DIGEST_SIZE); |
| 1172 | } |
| 1173 | |
| 1174 | static int mtk_crypto_hmac_sha384_init(struct ahash_request *areq) |
| 1175 | { |
| 1176 | struct mtk_crypto_ahash_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(areq)); |
| 1177 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 1178 | |
| 1179 | memset(req, 0, sizeof(*req)); |
| 1180 | |
| 1181 | memcpy(req->state, ctx->ipad, SHA384_DIGEST_SIZE); |
| 1182 | req->sa_pointer = ctx->ipad_sa; |
| 1183 | req->token_context = ctx->ipad_token; |
| 1184 | req->not_first = true; |
| 1185 | req->len = SHA384_BLOCK_SIZE; |
| 1186 | req->processed = SHA384_BLOCK_SIZE; |
| 1187 | |
| 1188 | ctx->alg = MTK_CRYPTO_ALG_SHA384; |
| 1189 | req->digest = MTK_CRYPTO_DIGEST_PRECOMPUTED; |
| 1190 | req->state_sz = SHA384_DIGEST_SIZE; |
| 1191 | req->digest_sz = SHA384_DIGEST_SIZE; |
| 1192 | req->block_sz = SHA384_BLOCK_SIZE; |
| 1193 | req->hmac = true; |
| 1194 | |
| 1195 | return 0; |
| 1196 | } |
| 1197 | |
| 1198 | static int mtk_crypto_hmac_sha384_digest(struct ahash_request *areq) |
| 1199 | { |
| 1200 | int ret = mtk_crypto_hmac_sha384_init(areq); |
| 1201 | |
| 1202 | if (ret) |
| 1203 | return ret; |
| 1204 | |
| 1205 | return mtk_crypto_ahash_finup(areq); |
| 1206 | } |
| 1207 | |
| 1208 | struct mtk_crypto_alg_template mtk_crypto_hmac_sha384 = { |
| 1209 | .type = MTK_CRYPTO_ALG_TYPE_AHASH, |
| 1210 | .alg.ahash = { |
| 1211 | .init = mtk_crypto_hmac_sha384_init, |
| 1212 | .update = mtk_crypto_ahash_update, |
| 1213 | .final = mtk_crypto_ahash_final, |
| 1214 | .finup = mtk_crypto_ahash_finup, |
| 1215 | .digest = mtk_crypto_hmac_sha384_digest, |
| 1216 | .setkey = mtk_crypto_hmac_sha384_setkey, |
| 1217 | .export = mtk_crypto_ahash_export, |
| 1218 | .import = mtk_crypto_ahash_import, |
| 1219 | .halg = { |
| 1220 | .digestsize = SHA384_DIGEST_SIZE, |
| 1221 | .statesize = sizeof(struct mtk_crypto_ahash_export_state), |
| 1222 | .base = { |
| 1223 | .cra_name = "hmac(sha384)", |
| 1224 | .cra_driver_name = "crypto-eip-hmac-sha384", |
| 1225 | .cra_priority = MTK_CRYPTO_PRIORITY, |
| 1226 | .cra_flags = CRYPTO_ALG_ASYNC | |
| 1227 | CRYPTO_ALG_KERN_DRIVER_ONLY, |
| 1228 | .cra_blocksize = SHA384_BLOCK_SIZE, |
| 1229 | .cra_ctxsize = sizeof(struct mtk_crypto_ahash_ctx), |
| 1230 | .cra_init = mtk_crypto_ahash_cra_init, |
| 1231 | .cra_exit = mtk_crypto_ahash_cra_exit, |
| 1232 | .cra_module = THIS_MODULE, |
| 1233 | }, |
| 1234 | }, |
| 1235 | }, |
| 1236 | }; |
| 1237 | |
| 1238 | static int mtk_crypto_md5_init(struct ahash_request *areq) |
| 1239 | { |
| 1240 | struct mtk_crypto_ahash_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(areq)); |
| 1241 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 1242 | |
| 1243 | memset(req, 0, sizeof(*req)); |
| 1244 | |
| 1245 | ctx->alg = MTK_CRYPTO_ALG_MD5; |
| 1246 | req->digest = MTK_CRYPTO_DIGEST_PRECOMPUTED; |
| 1247 | req->state_sz = MD5_DIGEST_SIZE; |
| 1248 | req->digest_sz = MD5_DIGEST_SIZE; |
| 1249 | req->block_sz = MD5_HMAC_BLOCK_SIZE; |
| 1250 | |
| 1251 | return 0; |
| 1252 | } |
| 1253 | |
| 1254 | static int mtk_crypto_md5_digest(struct ahash_request *areq) |
| 1255 | { |
| 1256 | int ret = mtk_crypto_md5_init(areq); |
| 1257 | |
| 1258 | if (ret) |
| 1259 | return ret; |
| 1260 | |
| 1261 | return mtk_crypto_ahash_finup(areq); |
| 1262 | } |
| 1263 | |
| 1264 | struct mtk_crypto_alg_template mtk_crypto_md5 = { |
| 1265 | .type = MTK_CRYPTO_ALG_TYPE_AHASH, |
| 1266 | .alg.ahash = { |
| 1267 | .init = mtk_crypto_md5_init, |
| 1268 | .update = mtk_crypto_ahash_update, |
| 1269 | .final = mtk_crypto_ahash_final, |
| 1270 | .finup = mtk_crypto_ahash_finup, |
| 1271 | .digest = mtk_crypto_md5_digest, |
| 1272 | .export = mtk_crypto_ahash_export, |
| 1273 | .import = mtk_crypto_ahash_import, |
| 1274 | .halg = { |
| 1275 | .digestsize = MD5_DIGEST_SIZE, |
| 1276 | .statesize = sizeof(struct mtk_crypto_ahash_export_state), |
| 1277 | .base = { |
| 1278 | .cra_name = "md5", |
| 1279 | .cra_driver_name = "crypto-eip-md5", |
| 1280 | .cra_priority = MTK_CRYPTO_PRIORITY, |
| 1281 | .cra_flags = CRYPTO_ALG_ASYNC | |
| 1282 | CRYPTO_ALG_KERN_DRIVER_ONLY, |
| 1283 | .cra_blocksize = MD5_HMAC_BLOCK_SIZE, |
| 1284 | .cra_ctxsize = sizeof(struct mtk_crypto_ahash_ctx), |
| 1285 | .cra_init = mtk_crypto_ahash_cra_init, |
| 1286 | .cra_exit = mtk_crypto_ahash_cra_exit, |
| 1287 | .cra_module = THIS_MODULE, |
| 1288 | }, |
| 1289 | }, |
| 1290 | }, |
| 1291 | }; |
| 1292 | |
| 1293 | static int mtk_crypto_hmac_md5_init(struct ahash_request *areq) |
| 1294 | { |
| 1295 | struct mtk_crypto_ahash_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(areq)); |
| 1296 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 1297 | |
| 1298 | memset(req, 0, sizeof(*req)); |
| 1299 | |
| 1300 | memcpy(req->state, ctx->ipad, MD5_DIGEST_SIZE); |
| 1301 | req->sa_pointer = ctx->ipad_sa; |
| 1302 | req->token_context = ctx->ipad_token; |
| 1303 | req->not_first = true; |
| 1304 | req->len = MD5_HMAC_BLOCK_SIZE; |
| 1305 | req->processed = MD5_HMAC_BLOCK_SIZE; |
| 1306 | |
| 1307 | ctx->alg = MTK_CRYPTO_ALG_MD5; |
| 1308 | req->digest = MTK_CRYPTO_DIGEST_PRECOMPUTED; |
| 1309 | req->state_sz = MD5_DIGEST_SIZE; |
| 1310 | req->digest_sz = MD5_DIGEST_SIZE; |
| 1311 | req->block_sz = MD5_HMAC_BLOCK_SIZE; |
| 1312 | req->hmac = true; |
| 1313 | |
| 1314 | return 0; |
| 1315 | } |
| 1316 | |
| 1317 | static int mtk_crypto_hmac_md5_setkey(struct crypto_ahash *tfm, const u8 *key, |
| 1318 | unsigned int keylen) |
| 1319 | { |
| 1320 | return mtk_crypto_hmac_alg_setkey(tfm, key, keylen, "crypto-eip-md5", |
| 1321 | MD5_DIGEST_SIZE); |
| 1322 | } |
| 1323 | |
| 1324 | static int mtk_crypto_hmac_md5_digest(struct ahash_request *areq) |
| 1325 | { |
| 1326 | int ret = mtk_crypto_hmac_md5_init(areq); |
| 1327 | |
| 1328 | if (ret) |
| 1329 | return ret; |
| 1330 | |
| 1331 | return mtk_crypto_ahash_finup(areq); |
| 1332 | } |
| 1333 | |
| 1334 | struct mtk_crypto_alg_template mtk_crypto_hmac_md5 = { |
| 1335 | .type = MTK_CRYPTO_ALG_TYPE_AHASH, |
| 1336 | .alg.ahash = { |
| 1337 | .init = mtk_crypto_hmac_md5_init, |
| 1338 | .update = mtk_crypto_ahash_update, |
| 1339 | .final = mtk_crypto_ahash_final, |
| 1340 | .finup = mtk_crypto_ahash_finup, |
| 1341 | .digest = mtk_crypto_hmac_md5_digest, |
| 1342 | .setkey = mtk_crypto_hmac_md5_setkey, |
| 1343 | .export = mtk_crypto_ahash_export, |
| 1344 | .import = mtk_crypto_ahash_import, |
| 1345 | .halg = { |
| 1346 | .digestsize = MD5_DIGEST_SIZE, |
| 1347 | .statesize = sizeof(struct mtk_crypto_ahash_export_state), |
| 1348 | .base = { |
| 1349 | .cra_name = "hmac(md5)", |
| 1350 | .cra_driver_name = "crypto-eip-hmac-md5", |
| 1351 | .cra_priority = MTK_CRYPTO_PRIORITY, |
| 1352 | .cra_flags = CRYPTO_ALG_ASYNC | |
| 1353 | CRYPTO_ALG_KERN_DRIVER_ONLY, |
| 1354 | .cra_blocksize = MD5_HMAC_BLOCK_SIZE, |
| 1355 | .cra_ctxsize = sizeof(struct mtk_crypto_ahash_ctx), |
| 1356 | .cra_init = mtk_crypto_ahash_cra_init, |
| 1357 | .cra_exit = mtk_crypto_ahash_cra_exit, |
| 1358 | .cra_module = THIS_MODULE, |
| 1359 | }, |
| 1360 | }, |
| 1361 | }, |
| 1362 | }; |
| 1363 | |
| 1364 | static int mtk_crypto_cbcmac_init(struct ahash_request *areq) |
| 1365 | { |
| 1366 | struct mtk_crypto_ahash_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(areq)); |
| 1367 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 1368 | |
| 1369 | memset(req, 0, sizeof(*req)); |
| 1370 | memset(req->state, 0, sizeof(u32) * (SHA512_DIGEST_SIZE / sizeof(u32))); |
| 1371 | |
| 1372 | req->len = AES_BLOCK_SIZE; |
| 1373 | req->processed = AES_BLOCK_SIZE; |
| 1374 | |
| 1375 | req->digest = MTK_CRYPTO_DIGEST_XCM; |
| 1376 | req->state_sz = ctx->key_sz; |
| 1377 | req->digest_sz = AES_BLOCK_SIZE; |
| 1378 | req->block_sz = AES_BLOCK_SIZE; |
| 1379 | req->xcbcmac = true; |
| 1380 | |
| 1381 | return 0; |
| 1382 | } |
| 1383 | |
| 1384 | static int mtk_crypto_cbcmac_digest(struct ahash_request *areq) |
| 1385 | { |
| 1386 | return mtk_crypto_cbcmac_init(areq) ?: mtk_crypto_ahash_finup(areq); |
| 1387 | } |
| 1388 | |
| 1389 | static int mtk_crypto_xcbcmac_setkey(struct crypto_ahash *tfm, const u8 *key, |
| 1390 | unsigned int len) |
| 1391 | { |
| 1392 | struct mtk_crypto_ahash_ctx *ctx = crypto_tfm_ctx(crypto_ahash_tfm(tfm)); |
| 1393 | struct crypto_aes_ctx aes; |
| 1394 | u32 key_tmp[3 * AES_BLOCK_SIZE / sizeof(u32)]; |
| 1395 | int ret, i; |
| 1396 | |
| 1397 | ret = aes_expandkey(&aes, key, len); |
| 1398 | if (ret) |
| 1399 | return ret; |
| 1400 | |
| 1401 | crypto_cipher_clear_flags(ctx->kaes, CRYPTO_TFM_REQ_MASK); |
| 1402 | crypto_cipher_set_flags(ctx->kaes, crypto_ahash_get_flags(tfm) & CRYPTO_TFM_REQ_MASK); |
| 1403 | |
| 1404 | ret = crypto_cipher_setkey(ctx->kaes, key, len); |
| 1405 | if (ret) |
| 1406 | return ret; |
| 1407 | |
| 1408 | crypto_cipher_encrypt_one(ctx->kaes, (u8 *)key_tmp + 2 * AES_BLOCK_SIZE, |
| 1409 | "\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1"); |
| 1410 | crypto_cipher_encrypt_one(ctx->kaes, (u8 *)key_tmp, |
| 1411 | "\x2\x2\x2\x2\x2\x2\x2\x2\x2\x2\x2\x2\x2\x2\x2\x2"); |
| 1412 | crypto_cipher_encrypt_one(ctx->kaes, (u8 *)key_tmp + AES_BLOCK_SIZE, |
| 1413 | "\x3\x3\x3\x3\x3\x3\x3\x3\x3\x3\x3\x3\x3\x3\x3\x3"); |
| 1414 | |
| 1415 | for (i = 0; i < 3 * AES_BLOCK_SIZE / sizeof(u32); i++) |
| 1416 | ctx->ipad[i] = |
| 1417 | (__force u32)cpu_to_be32(key_tmp[i]); |
| 1418 | |
| 1419 | crypto_cipher_clear_flags(ctx->kaes, CRYPTO_TFM_REQ_MASK); |
| 1420 | crypto_cipher_set_flags(ctx->kaes, crypto_ahash_get_flags(tfm) & |
| 1421 | CRYPTO_TFM_REQ_MASK); |
| 1422 | ret = crypto_cipher_setkey(ctx->kaes, (u8 *)key_tmp + 2 * AES_BLOCK_SIZE, |
| 1423 | AES_MIN_KEY_SIZE); |
| 1424 | |
| 1425 | if (ret) |
| 1426 | return ret; |
| 1427 | |
| 1428 | ctx->alg = MTK_CRYPTO_ALG_XCBC; |
| 1429 | ctx->key_sz = AES_MIN_KEY_SIZE + 2 * AES_BLOCK_SIZE; |
| 1430 | ctx->cbcmac = false; |
| 1431 | |
| 1432 | memzero_explicit(&aes, sizeof(aes)); |
| 1433 | return 0; |
| 1434 | } |
| 1435 | |
| 1436 | static int mtk_crypto_xcbcmac_cra_init(struct crypto_tfm *tfm) |
| 1437 | { |
| 1438 | struct mtk_crypto_ahash_ctx *ctx = crypto_tfm_ctx(tfm); |
| 1439 | |
| 1440 | mtk_crypto_ahash_cra_init(tfm); |
| 1441 | ctx->kaes = crypto_alloc_cipher("aes", 0, 0); |
| 1442 | return PTR_ERR_OR_ZERO(ctx->kaes); |
| 1443 | } |
| 1444 | |
| 1445 | static void mtk_crypto_xcbcmac_cra_exit(struct crypto_tfm *tfm) |
| 1446 | { |
| 1447 | struct mtk_crypto_ahash_ctx *ctx = crypto_tfm_ctx(tfm); |
| 1448 | |
| 1449 | crypto_free_cipher(ctx->kaes); |
| 1450 | mtk_crypto_ahash_cra_exit(tfm); |
| 1451 | } |
| 1452 | |
| 1453 | struct mtk_crypto_alg_template mtk_crypto_xcbcmac = { |
| 1454 | .type = MTK_CRYPTO_ALG_TYPE_AHASH, |
| 1455 | .alg.ahash = { |
| 1456 | .init = mtk_crypto_cbcmac_init, |
| 1457 | .update = mtk_crypto_ahash_update, |
| 1458 | .final = mtk_crypto_ahash_final, |
| 1459 | .finup = mtk_crypto_ahash_finup, |
| 1460 | .digest = mtk_crypto_cbcmac_digest, |
| 1461 | .setkey = mtk_crypto_xcbcmac_setkey, |
| 1462 | .export = mtk_crypto_ahash_export, |
| 1463 | .import = mtk_crypto_ahash_import, |
| 1464 | .halg = { |
| 1465 | .digestsize = AES_BLOCK_SIZE, |
| 1466 | .statesize = sizeof(struct mtk_crypto_ahash_export_state), |
| 1467 | .base = { |
| 1468 | .cra_name = "xcbc(aes)", |
| 1469 | .cra_driver_name = "crypto-eip-xcbc-aes", |
| 1470 | .cra_priority = MTK_CRYPTO_PRIORITY, |
| 1471 | .cra_flags = CRYPTO_ALG_ASYNC | |
| 1472 | CRYPTO_ALG_KERN_DRIVER_ONLY, |
| 1473 | .cra_blocksize = AES_BLOCK_SIZE, |
| 1474 | .cra_ctxsize = sizeof(struct mtk_crypto_ahash_ctx), |
| 1475 | .cra_init = mtk_crypto_xcbcmac_cra_init, |
| 1476 | .cra_exit = mtk_crypto_xcbcmac_cra_exit, |
| 1477 | .cra_module = THIS_MODULE, |
| 1478 | }, |
| 1479 | }, |
| 1480 | }, |
| 1481 | }; |
| 1482 | |
| 1483 | static int mtk_crypto_cmac_setkey(struct crypto_ahash *tfm, const u8 *key, |
| 1484 | unsigned int len) |
| 1485 | { |
| 1486 | struct mtk_crypto_ahash_ctx *ctx = crypto_tfm_ctx(crypto_ahash_tfm(tfm)); |
| 1487 | struct crypto_aes_ctx aes; |
| 1488 | __be64 consts[4]; |
| 1489 | u64 _const[2]; |
| 1490 | u8 msb_mask, gfmask; |
| 1491 | int ret, i; |
| 1492 | |
| 1493 | ret = aes_expandkey(&aes, key, len); |
| 1494 | if (ret) |
| 1495 | return ret; |
| 1496 | |
| 1497 | crypto_cipher_clear_flags(ctx->kaes, CRYPTO_TFM_REQ_MASK); |
| 1498 | crypto_cipher_set_flags(ctx->kaes, crypto_ahash_get_flags(tfm) & |
| 1499 | CRYPTO_TFM_REQ_MASK); |
| 1500 | ret = crypto_cipher_setkey(ctx->kaes, key, len); |
| 1501 | if (ret) |
| 1502 | return ret; |
| 1503 | |
| 1504 | /* code below borrowed from crypto/cmac.c */ |
| 1505 | /* encrypt the zero block */ |
| 1506 | memset(consts, 0, AES_BLOCK_SIZE); |
| 1507 | crypto_cipher_encrypt_one(ctx->kaes, (u8 *) consts, (u8 *) consts); |
| 1508 | |
| 1509 | gfmask = 0x87; |
| 1510 | _const[0] = be64_to_cpu(consts[1]); |
| 1511 | _const[1] = be64_to_cpu(consts[0]); |
| 1512 | |
| 1513 | /* gf(2^128) multiply zero-ciphertext with u and u^2 */ |
| 1514 | for (i = 0; i < 4; i += 2) { |
| 1515 | msb_mask = ((s64)_const[1] >> 63) & gfmask; |
| 1516 | _const[1] = (_const[1] << 1) | (_const[0] >> 63); |
| 1517 | _const[0] = (_const[0] << 1) ^ msb_mask; |
| 1518 | |
| 1519 | consts[i + 0] = cpu_to_be64(_const[1]); |
| 1520 | consts[i + 1] = cpu_to_be64(_const[0]); |
| 1521 | } |
| 1522 | /* end of code borrowed from crypto/cmac.c */ |
| 1523 | |
| 1524 | for (i = 0; i < 2 * AES_BLOCK_SIZE / sizeof(u32); i++) |
| 1525 | ctx->ipad[i] = (__force __le32)cpu_to_be32(((u32 *) consts)[i]); |
| 1526 | memcpy((uint8_t *) ctx->ipad + 2 * AES_BLOCK_SIZE, key, len); |
| 1527 | |
| 1528 | if (len == AES_KEYSIZE_192) { |
| 1529 | ctx->alg = MTK_CRYPTO_ALG_CMAC_192; |
| 1530 | ctx->key_sz = 24 + 2 * AES_BLOCK_SIZE; |
| 1531 | } else if (len == AES_KEYSIZE_256) { |
| 1532 | ctx->alg = MTK_CRYPTO_ALG_CMAC_256; |
| 1533 | ctx->key_sz = AES_MAX_KEY_SIZE + 2 * AES_BLOCK_SIZE; |
| 1534 | } else { |
| 1535 | ctx->alg = MTK_CRYPTO_ALG_CMAC_128; |
| 1536 | ctx->key_sz = AES_MIN_KEY_SIZE + 2 * AES_BLOCK_SIZE; |
| 1537 | } |
| 1538 | ctx->cbcmac = false; |
| 1539 | |
| 1540 | memzero_explicit(&aes, sizeof(aes)); |
| 1541 | return 0; |
| 1542 | } |
| 1543 | |
| 1544 | struct mtk_crypto_alg_template mtk_crypto_cmac = { |
| 1545 | .type = MTK_CRYPTO_ALG_TYPE_AHASH, |
| 1546 | .alg.ahash = { |
| 1547 | .init = mtk_crypto_cbcmac_init, |
| 1548 | .update = mtk_crypto_ahash_update, |
| 1549 | .final = mtk_crypto_ahash_final, |
| 1550 | .finup = mtk_crypto_ahash_finup, |
| 1551 | .digest = mtk_crypto_cbcmac_digest, |
| 1552 | .setkey = mtk_crypto_cmac_setkey, |
| 1553 | .export = mtk_crypto_ahash_export, |
| 1554 | .import = mtk_crypto_ahash_import, |
| 1555 | .halg = { |
| 1556 | .digestsize = AES_BLOCK_SIZE, |
| 1557 | .statesize = sizeof(struct mtk_crypto_ahash_export_state), |
| 1558 | .base = { |
| 1559 | .cra_name = "cmac(aes)", |
| 1560 | .cra_driver_name = "crypto-eip-cmac-aes", |
| 1561 | .cra_priority = MTK_CRYPTO_PRIORITY, |
| 1562 | .cra_flags = CRYPTO_ALG_ASYNC | |
| 1563 | CRYPTO_ALG_KERN_DRIVER_ONLY, |
| 1564 | .cra_blocksize = AES_BLOCK_SIZE, |
| 1565 | .cra_ctxsize = sizeof(struct mtk_crypto_ahash_ctx), |
| 1566 | .cra_init = mtk_crypto_xcbcmac_cra_init, |
| 1567 | .cra_exit = mtk_crypto_xcbcmac_cra_exit, |
| 1568 | .cra_module = THIS_MODULE, |
| 1569 | }, |
| 1570 | }, |
| 1571 | }, |
| 1572 | }; |
| 1573 | |