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; |
developer | d66221d | 2024-04-01 19:03:52 +0800 | [diff] [blame^] | 52 | bool ret = 0; |
developer | 2df22aa | 2024-03-22 14:36:06 +0800 | [diff] [blame] | 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)) { |
developer | d66221d | 2024-04-01 19:03:52 +0800 | [diff] [blame^] | 100 | int pad_size = 0; |
developer | 2df22aa | 2024-03-22 14:36:06 +0800 | [diff] [blame] | 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); |
developer | 2df22aa | 2024-03-22 14:36:06 +0800 | [diff] [blame] | 151 | CRYPTO_ERR("Fail on ahash_req process\n"); |
| 152 | goto exit; |
| 153 | } |
| 154 | req->not_first = true; |
| 155 | req->processed += len - extra; |
| 156 | |
| 157 | return 0; |
| 158 | |
| 159 | zero_length_hmac: |
| 160 | if (req->sa_pointer) |
| 161 | crypto_free_sa(req->sa_pointer); |
| 162 | kfree(req->token_context); |
| 163 | |
| 164 | /* complete the final hash with opad for hmac*/ |
| 165 | if (req->hmac) { |
| 166 | req->sa_pointer = ctx->opad_sa; |
| 167 | req->token_context = ctx->opad_token; |
| 168 | ret = crypto_ahash_token_req(async, req, (uint8_t *) req->state, |
| 169 | req->digest_sz, true); |
| 170 | } |
| 171 | |
| 172 | return 0; |
| 173 | exit: |
| 174 | async->complete(async, ret); |
| 175 | |
| 176 | return 0; |
| 177 | } |
| 178 | |
| 179 | static int mtk_crypto_ahash_handle_result(struct mtk_crypto_result *res, int err) |
| 180 | { |
| 181 | struct crypto_async_request *async = res->async; |
| 182 | struct ahash_request *areq = ahash_request_cast(async); |
| 183 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 184 | struct crypto_ahash *ahash = crypto_ahash_reqtfm(areq); |
| 185 | int cache_len; |
| 186 | |
| 187 | if (req->xcbcmac) { |
| 188 | memcpy(req->state, res->dst + res->size - AES_BLOCK_SIZE, AES_BLOCK_SIZE); |
| 189 | crypto_free_sa(res->eip.sa); |
| 190 | kfree(res->eip.token_context); |
| 191 | } else |
| 192 | memcpy(req->state, res->dst, req->digest_sz); |
| 193 | |
| 194 | crypto_free_token(res->eip.token); |
| 195 | crypto_free_pkt(res->eip.pkt_handle); |
| 196 | |
| 197 | if (req->finish) { |
| 198 | if (req->hmac && !req->hmac_zlen) { |
| 199 | req->hmac_zlen = true; |
| 200 | mtk_crypto_ahash_enqueue(areq); |
| 201 | return 0; |
| 202 | } |
| 203 | if (req->sa_pointer) |
| 204 | crypto_free_sa(req->sa_pointer); |
| 205 | |
| 206 | kfree(req->token_context); |
| 207 | |
| 208 | memcpy(areq->result, req->state, crypto_ahash_digestsize(ahash)); |
| 209 | } |
| 210 | |
| 211 | cache_len = mtk_crypto_queued_len(req); |
| 212 | if (cache_len) |
| 213 | memcpy(req->cache, req->cache_next, cache_len); |
| 214 | async->complete(async, 0); |
| 215 | |
| 216 | return 0; |
| 217 | } |
| 218 | |
| 219 | static int mtk_crypto_ahash_cache(struct ahash_request *areq) |
| 220 | { |
| 221 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 222 | u64 cache_len; |
| 223 | |
| 224 | cache_len = mtk_crypto_queued_len(req); |
| 225 | |
| 226 | if (cache_len + areq->nbytes <= HASH_CACHE_SIZE) { |
| 227 | sg_pcopy_to_buffer(areq->src, sg_nents(areq->src), |
| 228 | req->cache + cache_len, |
| 229 | areq->nbytes, 0); |
| 230 | return 0; |
| 231 | } |
| 232 | |
| 233 | return -E2BIG; |
| 234 | } |
| 235 | |
| 236 | static int mtk_crypto_ahash_update(struct ahash_request *areq) |
| 237 | { |
| 238 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 239 | int ret; |
| 240 | |
| 241 | if (!areq->nbytes) |
| 242 | return 0; |
| 243 | |
| 244 | ret = mtk_crypto_ahash_cache(areq); |
| 245 | |
| 246 | req->len += areq->nbytes; |
| 247 | |
| 248 | if ((ret && !req->finish) || req->last_req) |
| 249 | return mtk_crypto_ahash_enqueue(areq); |
| 250 | |
| 251 | return 0; |
| 252 | } |
| 253 | |
| 254 | static int mtk_crypto_ahash_final(struct ahash_request *areq) |
| 255 | { |
| 256 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 257 | struct mtk_crypto_ahash_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(areq)); |
| 258 | |
| 259 | req->finish = true; |
| 260 | |
| 261 | if (unlikely(!req->len && !areq->nbytes && !req->hmac)) { |
| 262 | if (ctx->alg == MTK_CRYPTO_ALG_SHA1) |
| 263 | memcpy(areq->result, sha1_zero_message_hash, |
| 264 | SHA1_DIGEST_SIZE); |
| 265 | else if (ctx->alg == MTK_CRYPTO_ALG_SHA224) |
| 266 | memcpy(areq->result, sha224_zero_message_hash, |
| 267 | SHA224_DIGEST_SIZE); |
| 268 | else if (ctx->alg == MTK_CRYPTO_ALG_SHA256) |
| 269 | memcpy(areq->result, sha256_zero_message_hash, |
| 270 | SHA256_DIGEST_SIZE); |
| 271 | else if (ctx->alg == MTK_CRYPTO_ALG_SHA384) |
| 272 | memcpy(areq->result, sha384_zero_message_hash, |
| 273 | SHA384_DIGEST_SIZE); |
| 274 | else if (ctx->alg == MTK_CRYPTO_ALG_SHA512) |
| 275 | memcpy(areq->result, sha512_zero_message_hash, |
| 276 | SHA512_DIGEST_SIZE); |
| 277 | else if (ctx->alg == MTK_CRYPTO_ALG_MD5) |
| 278 | memcpy(areq->result, md5_zero_message_hash, |
| 279 | MD5_DIGEST_SIZE); |
| 280 | |
| 281 | return 0; |
| 282 | } else if (unlikely(req->digest == MTK_CRYPTO_DIGEST_XCM && |
| 283 | ctx->alg == MTK_CRYPTO_ALG_MD5 && req->len == sizeof(u32) && |
| 284 | !areq->nbytes)) { |
| 285 | memcpy(areq->result, ctx->ipad, sizeof(u32)); |
| 286 | return 0; |
| 287 | } else if (unlikely(ctx->cbcmac && req->len == AES_BLOCK_SIZE && |
| 288 | !areq->nbytes)) { |
| 289 | memset(areq->result, 0, AES_BLOCK_SIZE); |
| 290 | return 0; |
| 291 | } else if (unlikely(req->xcbcmac && req->len == AES_BLOCK_SIZE && |
| 292 | !areq->nbytes)) { |
| 293 | int i; |
| 294 | |
| 295 | for (i = 0; i < AES_BLOCK_SIZE / sizeof(u32); i++) |
| 296 | ((__be32 *) areq->result)[i] = |
| 297 | cpu_to_be32(le32_to_cpu(ctx->ipad[i + 4])); |
| 298 | areq->result[0] ^= 0x80; |
| 299 | crypto_cipher_encrypt_one(ctx->kaes, areq->result, areq->result); |
| 300 | return 0; |
| 301 | } else if (unlikely(req->hmac && (req->len == req->block_sz) && |
| 302 | !areq->nbytes)) { |
| 303 | memcpy(req->state, ctx->zero_hmac, req->state_sz); |
| 304 | req->hmac_zlen = true; |
| 305 | } else if (req->hmac) { |
| 306 | req->digest = MTK_CRYPTO_DIGEST_HMAC; |
| 307 | } |
| 308 | |
| 309 | return mtk_crypto_ahash_enqueue(areq); |
| 310 | } |
| 311 | |
| 312 | static int mtk_crypto_ahash_finup(struct ahash_request *areq) |
| 313 | { |
| 314 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 315 | |
| 316 | req->finish = true; |
| 317 | |
| 318 | mtk_crypto_ahash_update(areq); |
| 319 | return mtk_crypto_ahash_final(areq); |
| 320 | } |
| 321 | |
| 322 | static int mtk_crypto_ahash_export(struct ahash_request *areq, void *out) |
| 323 | { |
| 324 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 325 | struct mtk_crypto_ahash_export_state *export = out; |
| 326 | |
| 327 | export->len = req->len; |
| 328 | export->processed = req->processed; |
| 329 | |
| 330 | export->digest = req->digest; |
| 331 | export->sa_pointer = req->sa_pointer; |
| 332 | export->token_context = req->token_context; |
| 333 | |
| 334 | memcpy(export->state, req->state, req->state_sz); |
| 335 | memcpy(export->cache, req->cache, HASH_CACHE_SIZE); |
| 336 | |
| 337 | return 0; |
| 338 | } |
| 339 | |
| 340 | static int mtk_crypto_ahash_import(struct ahash_request *areq, const void *in) |
| 341 | { |
| 342 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 343 | const struct mtk_crypto_ahash_export_state *export = in; |
| 344 | int ret; |
| 345 | |
| 346 | ret = crypto_ahash_init(areq); |
| 347 | if (ret) |
| 348 | return ret; |
| 349 | |
| 350 | req->len = export->len; |
| 351 | req->processed = export->processed; |
| 352 | |
| 353 | req->digest = export->digest; |
| 354 | req->sa_pointer = export->sa_pointer; |
| 355 | req->token_context = export->token_context; |
| 356 | if (req->sa_pointer) |
| 357 | req->not_first = true; |
| 358 | |
| 359 | memcpy(req->cache, export->cache, HASH_CACHE_SIZE); |
| 360 | memcpy(req->state, export->state, req->state_sz); |
| 361 | |
| 362 | return 0; |
| 363 | } |
| 364 | |
| 365 | static int mtk_crypto_ahash_cra_init(struct crypto_tfm *tfm) |
| 366 | { |
| 367 | struct mtk_crypto_ahash_ctx *ctx = crypto_tfm_ctx(tfm); |
| 368 | struct mtk_crypto_alg_template *tmpl = |
| 369 | container_of(__crypto_ahash_alg(tfm->__crt_alg), |
| 370 | struct mtk_crypto_alg_template, alg.ahash); |
| 371 | |
| 372 | ctx->priv = tmpl->priv; |
| 373 | ctx->base.send = mtk_crypto_ahash_send; |
| 374 | ctx->base.handle_result = mtk_crypto_ahash_handle_result; |
| 375 | crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm), |
| 376 | sizeof(struct mtk_crypto_ahash_req)); |
| 377 | |
| 378 | return 0; |
| 379 | } |
| 380 | |
| 381 | static int mtk_crypto_sha1_init(struct ahash_request *areq) |
| 382 | { |
| 383 | struct mtk_crypto_ahash_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(areq)); |
| 384 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 385 | |
| 386 | memset(req, 0, sizeof(*req)); |
| 387 | |
| 388 | ctx->alg = MTK_CRYPTO_ALG_SHA1; |
| 389 | req->digest = MTK_CRYPTO_DIGEST_PRECOMPUTED; |
| 390 | req->state_sz = SHA1_DIGEST_SIZE; |
| 391 | req->digest_sz = SHA1_DIGEST_SIZE; |
| 392 | req->block_sz = SHA1_BLOCK_SIZE; |
| 393 | |
| 394 | return 0; |
| 395 | } |
| 396 | |
| 397 | static int mtk_crypto_sha1_digest(struct ahash_request *areq) |
| 398 | { |
| 399 | int ret = mtk_crypto_sha1_init(areq); |
| 400 | |
| 401 | if (ret) |
| 402 | return ret; |
| 403 | |
| 404 | return mtk_crypto_ahash_finup(areq); |
| 405 | } |
| 406 | |
| 407 | static void mtk_crypto_ahash_cra_exit(struct crypto_tfm *tfm) |
| 408 | { |
| 409 | } |
| 410 | |
| 411 | struct mtk_crypto_alg_template mtk_crypto_sha1 = { |
| 412 | .type = MTK_CRYPTO_ALG_TYPE_AHASH, |
| 413 | .alg.ahash = { |
| 414 | .init = mtk_crypto_sha1_init, |
| 415 | .update = mtk_crypto_ahash_update, |
| 416 | .final = mtk_crypto_ahash_final, |
| 417 | .finup = mtk_crypto_ahash_finup, |
| 418 | .digest = mtk_crypto_sha1_digest, |
| 419 | .export = mtk_crypto_ahash_export, |
| 420 | .import = mtk_crypto_ahash_import, |
| 421 | .halg = { |
| 422 | .digestsize = SHA1_DIGEST_SIZE, |
| 423 | .statesize = sizeof(struct mtk_crypto_ahash_export_state), |
| 424 | .base = { |
| 425 | .cra_name = "sha1", |
| 426 | .cra_driver_name = "crypto-eip-sha1", |
| 427 | .cra_priority = MTK_CRYPTO_PRIORITY, |
| 428 | .cra_flags = CRYPTO_ALG_ASYNC | |
| 429 | CRYPTO_ALG_KERN_DRIVER_ONLY, |
| 430 | .cra_blocksize = SHA1_BLOCK_SIZE, |
| 431 | .cra_ctxsize = sizeof(struct mtk_crypto_ahash_ctx), |
| 432 | .cra_init = mtk_crypto_ahash_cra_init, |
| 433 | .cra_exit = mtk_crypto_ahash_cra_exit, |
| 434 | .cra_module = THIS_MODULE, |
| 435 | }, |
| 436 | }, |
| 437 | }, |
| 438 | }; |
| 439 | |
| 440 | static int mtk_crypto_hmac_sha1_init(struct ahash_request *areq) |
| 441 | { |
| 442 | struct mtk_crypto_ahash_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(areq)); |
| 443 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 444 | |
| 445 | memset(req, 0, sizeof(*req)); |
| 446 | |
| 447 | memcpy(req->state, ctx->ipad, SHA1_DIGEST_SIZE); |
| 448 | req->sa_pointer = ctx->ipad_sa; |
| 449 | req->token_context = ctx->ipad_token; |
| 450 | req->not_first = true; |
| 451 | req->len = SHA1_BLOCK_SIZE; |
| 452 | req->processed = SHA1_BLOCK_SIZE; |
| 453 | |
| 454 | ctx->alg = MTK_CRYPTO_ALG_SHA1; |
| 455 | req->digest = MTK_CRYPTO_DIGEST_PRECOMPUTED; |
| 456 | req->state_sz = SHA1_DIGEST_SIZE; |
| 457 | req->digest_sz = SHA1_DIGEST_SIZE; |
| 458 | req->block_sz = SHA1_BLOCK_SIZE; |
| 459 | req->hmac = true; |
| 460 | |
| 461 | return 0; |
| 462 | } |
| 463 | |
| 464 | static int mtk_crypto_hmac_sha1_digest(struct ahash_request *areq) |
| 465 | { |
| 466 | int ret = mtk_crypto_hmac_sha1_init(areq); |
| 467 | |
| 468 | if (ret) |
| 469 | return ret; |
| 470 | |
| 471 | return mtk_crypto_ahash_finup(areq); |
| 472 | } |
| 473 | |
| 474 | struct mtk_crypto_ahash_result { |
| 475 | struct completion completion; |
| 476 | int error; |
| 477 | }; |
| 478 | |
| 479 | static void mtk_crypto_ahash_complete(struct crypto_async_request *req, int error) |
| 480 | { |
| 481 | struct mtk_crypto_ahash_result *result = req->data; |
| 482 | |
| 483 | if (error == -EINPROGRESS) |
| 484 | return; |
| 485 | |
| 486 | result->error = error; |
| 487 | complete(&result->completion); |
| 488 | } |
| 489 | |
| 490 | static int mtk_crypto_hmac_init_pad(struct ahash_request *areq, unsigned int blocksize, |
| 491 | const u8 *key, unsigned int keylen, |
| 492 | u8 *ipad, u8 *opad) |
| 493 | { |
| 494 | struct mtk_crypto_ahash_result result; |
| 495 | struct scatterlist sg; |
| 496 | int ret, i; |
| 497 | u8 *keydup; |
| 498 | |
| 499 | if (keylen <= blocksize) { |
| 500 | memcpy(ipad, key, keylen); |
| 501 | } else { |
| 502 | keydup = kmemdup(key, keylen, GFP_KERNEL); |
| 503 | if (!keydup) |
| 504 | return -ENOMEM; |
| 505 | |
| 506 | ahash_request_set_callback(areq, CRYPTO_TFM_REQ_MAY_BACKLOG, |
| 507 | mtk_crypto_ahash_complete, &result); |
| 508 | sg_init_one(&sg, keydup, keylen); |
| 509 | ahash_request_set_crypt(areq, &sg, ipad, keylen); |
| 510 | init_completion(&result.completion); |
| 511 | |
| 512 | ret = crypto_ahash_digest(areq); |
| 513 | if (ret == -EINPROGRESS || ret == -EBUSY) { |
| 514 | wait_for_completion_interruptible(&result.completion); |
| 515 | ret = result.error; |
| 516 | } |
| 517 | |
| 518 | memzero_explicit(keydup, keylen); |
| 519 | kfree(keydup); |
| 520 | |
| 521 | if (ret) |
| 522 | return ret; |
| 523 | |
| 524 | keylen = crypto_ahash_digestsize(crypto_ahash_reqtfm(areq)); |
| 525 | } |
| 526 | |
| 527 | memset(ipad + keylen, 0, blocksize - keylen); |
| 528 | memcpy(opad, ipad, blocksize); |
| 529 | |
| 530 | for (i = 0; i < blocksize; i++) { |
| 531 | ipad[i] ^= HMAC_IPAD_VALUE; |
| 532 | opad[i] ^= HMAC_OPAD_VALUE; |
| 533 | } |
| 534 | |
| 535 | return 0; |
| 536 | } |
| 537 | |
| 538 | static int mtk_crypto_hmac_init_iv(struct ahash_request *areq, unsigned int blocksize, |
| 539 | u8 *pad, void *state, bool zero) |
| 540 | { |
| 541 | struct mtk_crypto_ahash_result result; |
| 542 | struct mtk_crypto_ahash_req *req; |
| 543 | struct scatterlist sg; |
| 544 | int ret; |
| 545 | |
| 546 | ahash_request_set_callback(areq, CRYPTO_TFM_REQ_MAY_BACKLOG, |
| 547 | mtk_crypto_ahash_complete, &result); |
| 548 | sg_init_one(&sg, pad, blocksize); |
| 549 | ahash_request_set_crypt(areq, &sg, pad, blocksize); |
| 550 | init_completion(&result.completion); |
| 551 | |
| 552 | ret = crypto_ahash_init(areq); |
| 553 | if (ret) |
| 554 | return ret; |
| 555 | |
| 556 | req = ahash_request_ctx(areq); |
| 557 | req->last_req = !zero; |
| 558 | |
| 559 | if (zero) |
| 560 | ret = crypto_ahash_finup(areq); |
| 561 | else |
| 562 | ret = crypto_ahash_update(areq); |
| 563 | if (ret && ret != -EINPROGRESS && ret != -EBUSY) |
| 564 | return ret; |
| 565 | |
| 566 | wait_for_completion_interruptible(&result.completion); |
| 567 | if (result.error) |
| 568 | return result.error; |
| 569 | |
| 570 | return crypto_ahash_export(areq, state); |
| 571 | } |
| 572 | |
| 573 | int mtk_crypto_zero_hmac_setkey(const char *alg, const u8 *key, unsigned int keylen, |
| 574 | void *istate) |
| 575 | { |
| 576 | struct ahash_request *areq; |
| 577 | struct crypto_ahash *tfm; |
| 578 | unsigned int blocksize; |
| 579 | u8 *ipad, *opad; |
| 580 | int ret; |
| 581 | |
| 582 | tfm = crypto_alloc_ahash(alg, 0, 0); |
| 583 | if (IS_ERR(tfm)) |
| 584 | return PTR_ERR(tfm); |
| 585 | |
| 586 | areq = ahash_request_alloc(tfm, GFP_KERNEL); |
| 587 | if (!areq) { |
| 588 | ret = -ENOMEM; |
| 589 | goto free_ahash; |
| 590 | } |
| 591 | |
| 592 | crypto_ahash_clear_flags(tfm, ~0); |
| 593 | blocksize = crypto_tfm_alg_blocksize(crypto_ahash_tfm(tfm)); |
| 594 | |
| 595 | ipad = kcalloc(2, blocksize, GFP_KERNEL); |
| 596 | if (!ipad) { |
| 597 | ret = -ENOMEM; |
| 598 | goto free_request; |
| 599 | } |
| 600 | |
| 601 | opad = ipad + blocksize; |
| 602 | |
| 603 | ret = mtk_crypto_hmac_init_pad(areq, blocksize, key, keylen, ipad, opad); |
| 604 | if (ret) |
| 605 | goto free_ipad; |
| 606 | |
| 607 | ret = mtk_crypto_hmac_init_iv(areq, blocksize, ipad, istate, true); |
| 608 | if (ret) |
| 609 | goto free_ipad; |
| 610 | |
| 611 | free_ipad: |
| 612 | kfree(ipad); |
| 613 | free_request: |
developer | d66221d | 2024-04-01 19:03:52 +0800 | [diff] [blame^] | 614 | kfree(areq); |
developer | 2df22aa | 2024-03-22 14:36:06 +0800 | [diff] [blame] | 615 | free_ahash: |
| 616 | crypto_free_ahash(tfm); |
| 617 | |
| 618 | return ret; |
| 619 | } |
| 620 | |
| 621 | int mtk_crypto_hmac_setkey(const char *alg, const u8 *key, unsigned int keylen, |
| 622 | void *istate, void *ostate) |
| 623 | { |
| 624 | struct ahash_request *areq; |
| 625 | struct crypto_ahash *tfm; |
| 626 | unsigned int blocksize; |
| 627 | u8 *ipad, *opad; |
| 628 | int ret; |
| 629 | |
| 630 | tfm = crypto_alloc_ahash(alg, 0, 0); |
| 631 | if (IS_ERR(tfm)) |
| 632 | return PTR_ERR(tfm); |
| 633 | |
| 634 | areq = ahash_request_alloc(tfm, GFP_KERNEL); |
| 635 | if (!areq) { |
| 636 | ret = -ENOMEM; |
| 637 | goto free_ahash; |
| 638 | } |
| 639 | |
| 640 | crypto_ahash_clear_flags(tfm, ~0); |
| 641 | blocksize = crypto_tfm_alg_blocksize(crypto_ahash_tfm(tfm)); |
| 642 | |
| 643 | ipad = kcalloc(2, blocksize, GFP_KERNEL); |
| 644 | if (!ipad) { |
| 645 | ret = -ENOMEM; |
| 646 | goto free_request; |
| 647 | } |
| 648 | |
| 649 | opad = ipad + blocksize; |
| 650 | |
| 651 | ret = mtk_crypto_hmac_init_pad(areq, blocksize, key, keylen, ipad, opad); |
| 652 | if (ret) |
| 653 | goto free_ipad; |
| 654 | |
| 655 | ret = mtk_crypto_hmac_init_iv(areq, blocksize, ipad, istate, false); |
| 656 | if (ret) |
| 657 | goto free_ipad; |
| 658 | |
| 659 | ret = mtk_crypto_hmac_init_iv(areq, blocksize, opad, ostate, false); |
| 660 | |
| 661 | free_ipad: |
| 662 | kfree(ipad); |
| 663 | free_request: |
developer | d66221d | 2024-04-01 19:03:52 +0800 | [diff] [blame^] | 664 | kfree(areq); |
developer | 2df22aa | 2024-03-22 14:36:06 +0800 | [diff] [blame] | 665 | free_ahash: |
| 666 | crypto_free_ahash(tfm); |
| 667 | |
| 668 | return ret; |
| 669 | } |
| 670 | |
| 671 | static int mtk_crypto_hmac_alg_setkey(struct crypto_ahash *tfm, const u8 *key, |
| 672 | unsigned int keylen, const char *alg, |
| 673 | unsigned int state_sz) |
| 674 | { |
| 675 | struct mtk_crypto_ahash_ctx *ctx = crypto_tfm_ctx(crypto_ahash_tfm(tfm)); |
| 676 | struct mtk_crypto_ahash_export_state istate, ostate, zeroi; |
| 677 | int ret; |
| 678 | |
developer | d66221d | 2024-04-01 19:03:52 +0800 | [diff] [blame^] | 679 | memset(&zeroi, 0, sizeof(struct mtk_crypto_ahash_export_state)); |
| 680 | memset(&istate, 0, sizeof(struct mtk_crypto_ahash_export_state)); |
| 681 | memset(&ostate, 0, sizeof(struct mtk_crypto_ahash_export_state)); |
developer | 2df22aa | 2024-03-22 14:36:06 +0800 | [diff] [blame] | 682 | ret = mtk_crypto_hmac_setkey(alg, key, keylen, &istate, &ostate); |
| 683 | if (ret) |
| 684 | return ret; |
| 685 | |
| 686 | ret = mtk_crypto_zero_hmac_setkey(alg, key, keylen, &zeroi); |
| 687 | if (ret) |
| 688 | return ret; |
| 689 | |
| 690 | memcpy(ctx->zero_hmac, &zeroi.state, state_sz); |
| 691 | memcpy(ctx->ipad, &istate.state, state_sz); |
| 692 | memcpy(ctx->opad, &ostate.state, state_sz); |
| 693 | ctx->ipad_sa = istate.sa_pointer; |
| 694 | ctx->ipad_token = istate.token_context; |
| 695 | ctx->opad_sa = ostate.sa_pointer; |
| 696 | ctx->opad_token = ostate.token_context; |
| 697 | |
| 698 | return 0; |
| 699 | } |
| 700 | |
| 701 | static int mtk_crypto_hmac_sha1_setkey(struct crypto_ahash *tfm, const u8 *key, |
| 702 | unsigned int keylen) |
| 703 | { |
| 704 | return mtk_crypto_hmac_alg_setkey(tfm, key, keylen, "crypto-eip-sha1", |
| 705 | SHA1_DIGEST_SIZE); |
| 706 | } |
| 707 | |
| 708 | struct mtk_crypto_alg_template mtk_crypto_hmac_sha1 = { |
| 709 | .type = MTK_CRYPTO_ALG_TYPE_AHASH, |
| 710 | .alg.ahash = { |
| 711 | .init = mtk_crypto_hmac_sha1_init, |
| 712 | .update = mtk_crypto_ahash_update, |
| 713 | .final = mtk_crypto_ahash_final, |
| 714 | .finup = mtk_crypto_ahash_finup, |
| 715 | .digest = mtk_crypto_hmac_sha1_digest, |
| 716 | .setkey = mtk_crypto_hmac_sha1_setkey, |
| 717 | .export = mtk_crypto_ahash_export, |
| 718 | .import = mtk_crypto_ahash_import, |
| 719 | .halg = { |
| 720 | .digestsize = SHA1_DIGEST_SIZE, |
| 721 | .statesize = sizeof(struct mtk_crypto_ahash_export_state), |
| 722 | .base = { |
| 723 | .cra_name = "hmac(sha1)", |
| 724 | .cra_driver_name = "crypto-eip-hmac-sha1", |
| 725 | .cra_priority = MTK_CRYPTO_PRIORITY, |
| 726 | .cra_flags = CRYPTO_ALG_ASYNC | |
| 727 | CRYPTO_ALG_KERN_DRIVER_ONLY, |
| 728 | .cra_blocksize = SHA1_BLOCK_SIZE, |
| 729 | .cra_ctxsize = sizeof(struct mtk_crypto_ahash_ctx), |
| 730 | .cra_init = mtk_crypto_ahash_cra_init, |
| 731 | .cra_exit = mtk_crypto_ahash_cra_exit, |
| 732 | .cra_module = THIS_MODULE, |
| 733 | }, |
| 734 | }, |
| 735 | }, |
| 736 | }; |
| 737 | |
| 738 | static int mtk_crypto_sha256_init(struct ahash_request *areq) |
| 739 | { |
| 740 | struct mtk_crypto_ahash_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(areq)); |
| 741 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 742 | |
| 743 | memset(req, 0, sizeof(*req)); |
| 744 | |
| 745 | ctx->alg = MTK_CRYPTO_ALG_SHA256; |
| 746 | req->digest = MTK_CRYPTO_DIGEST_PRECOMPUTED; |
| 747 | req->state_sz = SHA256_DIGEST_SIZE; |
| 748 | req->digest_sz = SHA256_DIGEST_SIZE; |
| 749 | req->block_sz = SHA256_BLOCK_SIZE; |
| 750 | |
| 751 | return 0; |
| 752 | } |
| 753 | |
| 754 | static int mtk_crypto_sha256_digest(struct ahash_request *areq) |
| 755 | { |
| 756 | int ret = mtk_crypto_sha256_init(areq); |
| 757 | |
| 758 | if (ret) |
| 759 | return ret; |
| 760 | |
| 761 | return mtk_crypto_ahash_finup(areq); |
| 762 | } |
| 763 | |
| 764 | struct mtk_crypto_alg_template mtk_crypto_sha256 = { |
| 765 | .type = MTK_CRYPTO_ALG_TYPE_AHASH, |
| 766 | .alg.ahash = { |
| 767 | .init = mtk_crypto_sha256_init, |
| 768 | .update = mtk_crypto_ahash_update, |
| 769 | .final = mtk_crypto_ahash_final, |
| 770 | .finup = mtk_crypto_ahash_finup, |
| 771 | .digest = mtk_crypto_sha256_digest, |
| 772 | .export = mtk_crypto_ahash_export, |
| 773 | .import = mtk_crypto_ahash_import, |
| 774 | .halg = { |
| 775 | .digestsize = SHA256_DIGEST_SIZE, |
| 776 | .statesize = sizeof(struct mtk_crypto_ahash_export_state), |
| 777 | .base = { |
| 778 | .cra_name = "sha256", |
| 779 | .cra_driver_name = "crypto-eip-sha256", |
| 780 | .cra_priority = MTK_CRYPTO_PRIORITY, |
| 781 | .cra_flags = CRYPTO_ALG_ASYNC | |
| 782 | CRYPTO_ALG_KERN_DRIVER_ONLY, |
| 783 | .cra_blocksize = SHA256_BLOCK_SIZE, |
| 784 | .cra_ctxsize = sizeof(struct mtk_crypto_ahash_ctx), |
| 785 | .cra_init = mtk_crypto_ahash_cra_init, |
| 786 | .cra_exit = mtk_crypto_ahash_cra_exit, |
| 787 | .cra_module = THIS_MODULE, |
| 788 | }, |
| 789 | }, |
| 790 | }, |
| 791 | }; |
| 792 | |
| 793 | static int mtk_crypto_sha224_init(struct ahash_request *areq) |
| 794 | { |
| 795 | struct mtk_crypto_ahash_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(areq)); |
| 796 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 797 | |
| 798 | memset(req, 0, sizeof(*req)); |
| 799 | |
| 800 | ctx->alg = MTK_CRYPTO_ALG_SHA224; |
| 801 | req->digest = MTK_CRYPTO_DIGEST_PRECOMPUTED; |
| 802 | req->state_sz = SHA256_DIGEST_SIZE; |
| 803 | req->digest_sz = SHA256_DIGEST_SIZE; |
| 804 | req->block_sz = SHA256_BLOCK_SIZE; |
| 805 | |
| 806 | return 0; |
| 807 | } |
| 808 | |
| 809 | static int mtk_crypto_sha224_digest(struct ahash_request *areq) |
| 810 | { |
| 811 | int ret = mtk_crypto_sha224_init(areq); |
| 812 | |
| 813 | if (ret) |
| 814 | return ret; |
| 815 | |
| 816 | return mtk_crypto_ahash_finup(areq); |
| 817 | } |
| 818 | |
| 819 | struct mtk_crypto_alg_template mtk_crypto_sha224 = { |
| 820 | .type = MTK_CRYPTO_ALG_TYPE_AHASH, |
| 821 | .alg.ahash = { |
| 822 | .init = mtk_crypto_sha224_init, |
| 823 | .update = mtk_crypto_ahash_update, |
| 824 | .final = mtk_crypto_ahash_final, |
| 825 | .finup = mtk_crypto_ahash_finup, |
| 826 | .digest = mtk_crypto_sha224_digest, |
| 827 | .export = mtk_crypto_ahash_export, |
| 828 | .import = mtk_crypto_ahash_import, |
| 829 | .halg = { |
| 830 | .digestsize = SHA224_DIGEST_SIZE, |
| 831 | .statesize = sizeof(struct mtk_crypto_ahash_export_state), |
| 832 | .base = { |
| 833 | .cra_name = "sha224", |
| 834 | .cra_driver_name = "crypto-eip-sha224", |
| 835 | .cra_priority = MTK_CRYPTO_PRIORITY, |
| 836 | .cra_flags = CRYPTO_ALG_ASYNC | |
| 837 | CRYPTO_ALG_KERN_DRIVER_ONLY, |
| 838 | .cra_blocksize = SHA224_BLOCK_SIZE, |
| 839 | .cra_ctxsize = sizeof(struct mtk_crypto_ahash_ctx), |
| 840 | .cra_init = mtk_crypto_ahash_cra_init, |
| 841 | .cra_exit = mtk_crypto_ahash_cra_exit, |
| 842 | .cra_module = THIS_MODULE, |
| 843 | }, |
| 844 | }, |
| 845 | }, |
| 846 | }; |
| 847 | |
| 848 | static int mtk_crypto_hmac_sha224_setkey(struct crypto_ahash *tfm, const u8 *key, |
| 849 | unsigned int keylen) |
| 850 | { |
| 851 | return mtk_crypto_hmac_alg_setkey(tfm, key, keylen, "crypto-eip-sha224", |
| 852 | SHA256_DIGEST_SIZE); |
| 853 | } |
| 854 | |
| 855 | static int mtk_crypto_hmac_sha224_init(struct ahash_request *areq) |
| 856 | { |
| 857 | struct mtk_crypto_ahash_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(areq)); |
| 858 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 859 | |
| 860 | memset(req, 0, sizeof(*req)); |
| 861 | |
| 862 | memcpy(req->state, ctx->ipad, SHA224_DIGEST_SIZE); |
| 863 | |
| 864 | req->sa_pointer = ctx->ipad_sa; |
| 865 | req->token_context = ctx->ipad_token; |
| 866 | req->not_first = true; |
| 867 | req->len = SHA224_BLOCK_SIZE; |
| 868 | req->processed = SHA224_BLOCK_SIZE; |
| 869 | |
| 870 | ctx->alg = MTK_CRYPTO_ALG_SHA224; |
| 871 | req->digest = MTK_CRYPTO_DIGEST_PRECOMPUTED; |
| 872 | req->state_sz = SHA224_DIGEST_SIZE; |
| 873 | req->digest_sz = SHA224_DIGEST_SIZE; |
| 874 | req->block_sz = SHA224_BLOCK_SIZE; |
| 875 | req->hmac = true; |
| 876 | |
| 877 | return 0; |
| 878 | } |
| 879 | |
| 880 | static int mtk_crypto_hmac_sha224_digest(struct ahash_request *areq) |
| 881 | { |
| 882 | int ret = mtk_crypto_hmac_sha224_init(areq); |
| 883 | |
| 884 | if (ret) |
| 885 | return ret; |
| 886 | return mtk_crypto_ahash_finup(areq); |
| 887 | } |
| 888 | |
| 889 | struct mtk_crypto_alg_template mtk_crypto_hmac_sha224 = { |
| 890 | .type = MTK_CRYPTO_ALG_TYPE_AHASH, |
| 891 | .alg.ahash = { |
| 892 | .init = mtk_crypto_hmac_sha224_init, |
| 893 | .update = mtk_crypto_ahash_update, |
| 894 | .final = mtk_crypto_ahash_final, |
| 895 | .finup = mtk_crypto_ahash_finup, |
| 896 | .digest = mtk_crypto_hmac_sha224_digest, |
| 897 | .setkey = mtk_crypto_hmac_sha224_setkey, |
| 898 | .export = mtk_crypto_ahash_export, |
| 899 | .import = mtk_crypto_ahash_import, |
| 900 | .halg = { |
| 901 | .digestsize = SHA224_DIGEST_SIZE, |
| 902 | .statesize = sizeof(struct mtk_crypto_ahash_export_state), |
| 903 | .base = { |
| 904 | .cra_name = "hmac(sha224)", |
| 905 | .cra_driver_name = "crypto-eip-hmac-sha224", |
| 906 | .cra_priority = MTK_CRYPTO_PRIORITY, |
| 907 | .cra_flags = CRYPTO_ALG_ASYNC | |
| 908 | CRYPTO_ALG_KERN_DRIVER_ONLY, |
| 909 | .cra_blocksize = SHA224_BLOCK_SIZE, |
| 910 | .cra_ctxsize = sizeof(struct mtk_crypto_ahash_ctx), |
| 911 | .cra_init = mtk_crypto_ahash_cra_init, |
| 912 | .cra_exit = mtk_crypto_ahash_cra_exit, |
| 913 | .cra_module = THIS_MODULE, |
| 914 | }, |
| 915 | }, |
| 916 | }, |
| 917 | }; |
| 918 | |
| 919 | static int mtk_crypto_hmac_sha256_setkey(struct crypto_ahash *tfm, const u8 *key, |
| 920 | unsigned int keylen) |
| 921 | { |
| 922 | return mtk_crypto_hmac_alg_setkey(tfm, key, keylen, "crypto-eip-sha256", |
| 923 | SHA256_DIGEST_SIZE); |
| 924 | } |
| 925 | |
| 926 | static int mtk_crypto_hmac_sha256_init(struct ahash_request *areq) |
| 927 | { |
| 928 | struct mtk_crypto_ahash_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(areq)); |
| 929 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 930 | |
| 931 | memset(req, 0, sizeof(*req)); |
| 932 | |
| 933 | memcpy(req->state, ctx->ipad, SHA256_DIGEST_SIZE); |
| 934 | req->sa_pointer = ctx->ipad_sa; |
| 935 | req->token_context = ctx->ipad_token; |
| 936 | req->not_first = true; |
| 937 | req->len = SHA256_BLOCK_SIZE; |
| 938 | req->processed = SHA256_BLOCK_SIZE; |
| 939 | |
| 940 | ctx->alg = MTK_CRYPTO_ALG_SHA256; |
| 941 | req->digest = MTK_CRYPTO_DIGEST_PRECOMPUTED; |
| 942 | req->state_sz = SHA256_DIGEST_SIZE; |
| 943 | req->digest_sz = SHA256_DIGEST_SIZE; |
| 944 | req->block_sz = SHA256_BLOCK_SIZE; |
| 945 | req->hmac = true; |
| 946 | |
| 947 | return 0; |
| 948 | } |
| 949 | |
| 950 | static int mtk_crypto_hmac_sha256_digest(struct ahash_request *areq) |
| 951 | { |
| 952 | int ret = mtk_crypto_hmac_sha256_init(areq); |
| 953 | |
| 954 | if (ret) |
| 955 | return ret; |
| 956 | return mtk_crypto_ahash_finup(areq); |
| 957 | } |
| 958 | |
| 959 | struct mtk_crypto_alg_template mtk_crypto_hmac_sha256 = { |
| 960 | .type = MTK_CRYPTO_ALG_TYPE_AHASH, |
| 961 | .alg.ahash = { |
| 962 | .init = mtk_crypto_hmac_sha256_init, |
| 963 | .update = mtk_crypto_ahash_update, |
| 964 | .final = mtk_crypto_ahash_final, |
| 965 | .finup = mtk_crypto_ahash_finup, |
| 966 | .digest = mtk_crypto_hmac_sha256_digest, |
| 967 | .setkey = mtk_crypto_hmac_sha256_setkey, |
| 968 | .export = mtk_crypto_ahash_export, |
| 969 | .import = mtk_crypto_ahash_import, |
| 970 | .halg = { |
| 971 | .digestsize = SHA256_DIGEST_SIZE, |
| 972 | .statesize = sizeof(struct mtk_crypto_ahash_export_state), |
| 973 | .base = { |
| 974 | .cra_name = "hmac(sha256)", |
| 975 | .cra_driver_name = "crypto-eip-hmac-sha256", |
| 976 | .cra_priority = MTK_CRYPTO_PRIORITY, |
| 977 | .cra_flags = CRYPTO_ALG_ASYNC | |
| 978 | CRYPTO_ALG_KERN_DRIVER_ONLY, |
| 979 | .cra_blocksize = SHA256_BLOCK_SIZE, |
| 980 | .cra_ctxsize = sizeof(struct mtk_crypto_ahash_ctx), |
| 981 | .cra_init = mtk_crypto_ahash_cra_init, |
| 982 | .cra_exit = mtk_crypto_ahash_cra_exit, |
| 983 | .cra_module = THIS_MODULE, |
| 984 | }, |
| 985 | }, |
| 986 | }, |
| 987 | }; |
| 988 | |
| 989 | static int mtk_crypto_sha512_init(struct ahash_request *areq) |
| 990 | { |
| 991 | struct mtk_crypto_ahash_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(areq)); |
| 992 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 993 | |
| 994 | memset(req, 0, sizeof(*req)); |
| 995 | |
| 996 | ctx->alg = MTK_CRYPTO_ALG_SHA512; |
| 997 | req->digest = MTK_CRYPTO_DIGEST_PRECOMPUTED; |
| 998 | req->state_sz = SHA512_DIGEST_SIZE; |
| 999 | req->digest_sz = SHA512_DIGEST_SIZE; |
| 1000 | req->block_sz = SHA512_BLOCK_SIZE; |
| 1001 | |
| 1002 | return 0; |
| 1003 | } |
| 1004 | |
| 1005 | static int mtk_crypto_sha512_digest(struct ahash_request *areq) |
| 1006 | { |
| 1007 | int ret = mtk_crypto_sha512_init(areq); |
| 1008 | |
| 1009 | if (ret) |
| 1010 | return ret; |
| 1011 | return mtk_crypto_ahash_finup(areq); |
| 1012 | } |
| 1013 | |
| 1014 | struct mtk_crypto_alg_template mtk_crypto_sha512 = { |
| 1015 | .type = MTK_CRYPTO_ALG_TYPE_AHASH, |
| 1016 | .alg.ahash = { |
| 1017 | .init = mtk_crypto_sha512_init, |
| 1018 | .update = mtk_crypto_ahash_update, |
| 1019 | .final = mtk_crypto_ahash_final, |
| 1020 | .finup = mtk_crypto_ahash_finup, |
| 1021 | .digest = mtk_crypto_sha512_digest, |
| 1022 | .export = mtk_crypto_ahash_export, |
| 1023 | .import = mtk_crypto_ahash_import, |
| 1024 | .halg = { |
| 1025 | .digestsize = SHA512_DIGEST_SIZE, |
| 1026 | .statesize = sizeof(struct mtk_crypto_ahash_ctx), |
| 1027 | .base = { |
| 1028 | .cra_name = "sha512", |
| 1029 | .cra_driver_name = "crypto-eip-sha512", |
| 1030 | .cra_priority = MTK_CRYPTO_PRIORITY, |
| 1031 | .cra_flags = CRYPTO_ALG_ASYNC | |
| 1032 | CRYPTO_ALG_KERN_DRIVER_ONLY, |
| 1033 | .cra_blocksize = SHA512_BLOCK_SIZE, |
| 1034 | .cra_ctxsize = sizeof(struct mtk_crypto_ahash_ctx), |
| 1035 | .cra_init = mtk_crypto_ahash_cra_init, |
| 1036 | .cra_exit = mtk_crypto_ahash_cra_exit, |
| 1037 | .cra_module = THIS_MODULE, |
| 1038 | }, |
| 1039 | }, |
| 1040 | }, |
| 1041 | }; |
| 1042 | |
| 1043 | static int mtk_crypto_sha384_init(struct ahash_request *areq) |
| 1044 | { |
| 1045 | struct mtk_crypto_ahash_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(areq)); |
| 1046 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 1047 | |
| 1048 | memset(req, 0, sizeof(*req)); |
| 1049 | |
| 1050 | ctx->alg = MTK_CRYPTO_ALG_SHA384; |
| 1051 | req->digest = MTK_CRYPTO_DIGEST_PRECOMPUTED; |
| 1052 | req->state_sz = SHA512_DIGEST_SIZE; |
| 1053 | req->digest_sz = SHA512_DIGEST_SIZE; |
| 1054 | req->block_sz = SHA384_BLOCK_SIZE; |
| 1055 | |
| 1056 | return 0; |
| 1057 | } |
| 1058 | |
| 1059 | static int mtk_crypto_sha384_digest(struct ahash_request *areq) |
| 1060 | { |
| 1061 | int ret = mtk_crypto_sha384_init(areq); |
| 1062 | |
| 1063 | if (ret) |
| 1064 | return ret; |
| 1065 | |
| 1066 | return mtk_crypto_ahash_finup(areq); |
| 1067 | } |
| 1068 | |
| 1069 | struct mtk_crypto_alg_template mtk_crypto_sha384 = { |
| 1070 | .type = MTK_CRYPTO_ALG_TYPE_AHASH, |
| 1071 | .alg.ahash = { |
| 1072 | .init = mtk_crypto_sha384_init, |
| 1073 | .update = mtk_crypto_ahash_update, |
| 1074 | .final = mtk_crypto_ahash_final, |
| 1075 | .finup = mtk_crypto_ahash_finup, |
| 1076 | .digest = mtk_crypto_sha384_digest, |
| 1077 | .export = mtk_crypto_ahash_export, |
| 1078 | .import = mtk_crypto_ahash_import, |
| 1079 | .halg = { |
| 1080 | .digestsize = SHA384_DIGEST_SIZE, |
| 1081 | .statesize = sizeof(struct mtk_crypto_ahash_ctx), |
| 1082 | .base = { |
| 1083 | .cra_name = "sha384", |
| 1084 | .cra_driver_name = "crypto-eip-sha384", |
| 1085 | .cra_priority = MTK_CRYPTO_PRIORITY, |
| 1086 | .cra_flags = CRYPTO_ALG_ASYNC | |
| 1087 | CRYPTO_ALG_KERN_DRIVER_ONLY, |
| 1088 | .cra_blocksize = SHA384_BLOCK_SIZE, |
| 1089 | .cra_ctxsize = sizeof(struct mtk_crypto_ahash_ctx), |
| 1090 | .cra_init = mtk_crypto_ahash_cra_init, |
| 1091 | .cra_exit = mtk_crypto_ahash_cra_exit, |
| 1092 | .cra_module = THIS_MODULE, |
| 1093 | }, |
| 1094 | }, |
| 1095 | }, |
| 1096 | }; |
| 1097 | |
| 1098 | static int mtk_crypto_hmac_sha512_setkey(struct crypto_ahash *tfm, const u8 *key, |
| 1099 | unsigned int keylen) |
| 1100 | { |
| 1101 | return mtk_crypto_hmac_alg_setkey(tfm, key, keylen, "crypto-eip-sha512", |
| 1102 | SHA512_DIGEST_SIZE); |
| 1103 | } |
| 1104 | |
| 1105 | static int mtk_crypto_hmac_sha512_init(struct ahash_request *areq) |
| 1106 | { |
| 1107 | struct mtk_crypto_ahash_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(areq)); |
| 1108 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 1109 | |
| 1110 | memset(req, 0, sizeof(*req)); |
| 1111 | |
| 1112 | memcpy(req->state, ctx->ipad, SHA512_DIGEST_SIZE); |
| 1113 | req->sa_pointer = ctx->ipad_sa; |
| 1114 | req->token_context = ctx->ipad_token; |
| 1115 | req->not_first = true; |
| 1116 | req->len = SHA512_BLOCK_SIZE; |
| 1117 | req->processed = SHA512_BLOCK_SIZE; |
| 1118 | |
| 1119 | ctx->alg = MTK_CRYPTO_ALG_SHA512; |
| 1120 | req->digest = MTK_CRYPTO_DIGEST_PRECOMPUTED; |
| 1121 | req->state_sz = SHA512_DIGEST_SIZE; |
| 1122 | req->digest_sz = SHA512_DIGEST_SIZE; |
| 1123 | req->block_sz = SHA512_BLOCK_SIZE; |
| 1124 | req->hmac = true; |
| 1125 | |
| 1126 | return 0; |
| 1127 | } |
| 1128 | |
| 1129 | static int mtk_crypto_hmac_sha512_digest(struct ahash_request *areq) |
| 1130 | { |
| 1131 | int ret = mtk_crypto_hmac_sha512_init(areq); |
| 1132 | |
| 1133 | if (ret) |
| 1134 | return ret; |
| 1135 | |
| 1136 | return mtk_crypto_ahash_finup(areq); |
| 1137 | } |
| 1138 | |
| 1139 | struct mtk_crypto_alg_template mtk_crypto_hmac_sha512 = { |
| 1140 | .type = MTK_CRYPTO_ALG_TYPE_AHASH, |
| 1141 | .alg.ahash = { |
| 1142 | .init = mtk_crypto_hmac_sha512_init, |
| 1143 | .update = mtk_crypto_ahash_update, |
| 1144 | .final = mtk_crypto_ahash_final, |
| 1145 | .finup = mtk_crypto_ahash_finup, |
| 1146 | .digest = mtk_crypto_hmac_sha512_digest, |
| 1147 | .setkey = mtk_crypto_hmac_sha512_setkey, |
| 1148 | .export = mtk_crypto_ahash_export, |
| 1149 | .import = mtk_crypto_ahash_import, |
| 1150 | .halg = { |
| 1151 | .digestsize = SHA512_DIGEST_SIZE, |
| 1152 | .statesize = sizeof(struct mtk_crypto_ahash_export_state), |
| 1153 | .base = { |
| 1154 | .cra_name = "hmac(sha512)", |
| 1155 | .cra_driver_name = "crypto-eip-hmac-sha512", |
| 1156 | .cra_priority = MTK_CRYPTO_PRIORITY, |
| 1157 | .cra_flags = CRYPTO_ALG_ASYNC | |
| 1158 | CRYPTO_ALG_KERN_DRIVER_ONLY, |
| 1159 | .cra_blocksize = SHA512_BLOCK_SIZE, |
| 1160 | .cra_ctxsize = sizeof(struct mtk_crypto_ahash_ctx), |
| 1161 | .cra_init = mtk_crypto_ahash_cra_init, |
| 1162 | .cra_exit = mtk_crypto_ahash_cra_exit, |
| 1163 | .cra_module = THIS_MODULE, |
| 1164 | }, |
| 1165 | }, |
| 1166 | }, |
| 1167 | }; |
| 1168 | |
| 1169 | static int mtk_crypto_hmac_sha384_setkey(struct crypto_ahash *tfm, const u8 *key, |
| 1170 | unsigned int keylen) |
| 1171 | { |
| 1172 | return mtk_crypto_hmac_alg_setkey(tfm, key, keylen, "crypto-eip-sha384", |
| 1173 | SHA512_DIGEST_SIZE); |
| 1174 | } |
| 1175 | |
| 1176 | static int mtk_crypto_hmac_sha384_init(struct ahash_request *areq) |
| 1177 | { |
| 1178 | struct mtk_crypto_ahash_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(areq)); |
| 1179 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 1180 | |
| 1181 | memset(req, 0, sizeof(*req)); |
| 1182 | |
| 1183 | memcpy(req->state, ctx->ipad, SHA384_DIGEST_SIZE); |
| 1184 | req->sa_pointer = ctx->ipad_sa; |
| 1185 | req->token_context = ctx->ipad_token; |
| 1186 | req->not_first = true; |
| 1187 | req->len = SHA384_BLOCK_SIZE; |
| 1188 | req->processed = SHA384_BLOCK_SIZE; |
| 1189 | |
| 1190 | ctx->alg = MTK_CRYPTO_ALG_SHA384; |
| 1191 | req->digest = MTK_CRYPTO_DIGEST_PRECOMPUTED; |
| 1192 | req->state_sz = SHA384_DIGEST_SIZE; |
| 1193 | req->digest_sz = SHA384_DIGEST_SIZE; |
| 1194 | req->block_sz = SHA384_BLOCK_SIZE; |
| 1195 | req->hmac = true; |
| 1196 | |
| 1197 | return 0; |
| 1198 | } |
| 1199 | |
| 1200 | static int mtk_crypto_hmac_sha384_digest(struct ahash_request *areq) |
| 1201 | { |
| 1202 | int ret = mtk_crypto_hmac_sha384_init(areq); |
| 1203 | |
| 1204 | if (ret) |
| 1205 | return ret; |
| 1206 | |
| 1207 | return mtk_crypto_ahash_finup(areq); |
| 1208 | } |
| 1209 | |
| 1210 | struct mtk_crypto_alg_template mtk_crypto_hmac_sha384 = { |
| 1211 | .type = MTK_CRYPTO_ALG_TYPE_AHASH, |
| 1212 | .alg.ahash = { |
| 1213 | .init = mtk_crypto_hmac_sha384_init, |
| 1214 | .update = mtk_crypto_ahash_update, |
| 1215 | .final = mtk_crypto_ahash_final, |
| 1216 | .finup = mtk_crypto_ahash_finup, |
| 1217 | .digest = mtk_crypto_hmac_sha384_digest, |
| 1218 | .setkey = mtk_crypto_hmac_sha384_setkey, |
| 1219 | .export = mtk_crypto_ahash_export, |
| 1220 | .import = mtk_crypto_ahash_import, |
| 1221 | .halg = { |
| 1222 | .digestsize = SHA384_DIGEST_SIZE, |
| 1223 | .statesize = sizeof(struct mtk_crypto_ahash_export_state), |
| 1224 | .base = { |
| 1225 | .cra_name = "hmac(sha384)", |
| 1226 | .cra_driver_name = "crypto-eip-hmac-sha384", |
| 1227 | .cra_priority = MTK_CRYPTO_PRIORITY, |
| 1228 | .cra_flags = CRYPTO_ALG_ASYNC | |
| 1229 | CRYPTO_ALG_KERN_DRIVER_ONLY, |
| 1230 | .cra_blocksize = SHA384_BLOCK_SIZE, |
| 1231 | .cra_ctxsize = sizeof(struct mtk_crypto_ahash_ctx), |
| 1232 | .cra_init = mtk_crypto_ahash_cra_init, |
| 1233 | .cra_exit = mtk_crypto_ahash_cra_exit, |
| 1234 | .cra_module = THIS_MODULE, |
| 1235 | }, |
| 1236 | }, |
| 1237 | }, |
| 1238 | }; |
| 1239 | |
| 1240 | static int mtk_crypto_md5_init(struct ahash_request *areq) |
| 1241 | { |
| 1242 | struct mtk_crypto_ahash_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(areq)); |
| 1243 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 1244 | |
| 1245 | memset(req, 0, sizeof(*req)); |
| 1246 | |
| 1247 | ctx->alg = MTK_CRYPTO_ALG_MD5; |
| 1248 | req->digest = MTK_CRYPTO_DIGEST_PRECOMPUTED; |
| 1249 | req->state_sz = MD5_DIGEST_SIZE; |
| 1250 | req->digest_sz = MD5_DIGEST_SIZE; |
| 1251 | req->block_sz = MD5_HMAC_BLOCK_SIZE; |
| 1252 | |
| 1253 | return 0; |
| 1254 | } |
| 1255 | |
| 1256 | static int mtk_crypto_md5_digest(struct ahash_request *areq) |
| 1257 | { |
| 1258 | int ret = mtk_crypto_md5_init(areq); |
| 1259 | |
| 1260 | if (ret) |
| 1261 | return ret; |
| 1262 | |
| 1263 | return mtk_crypto_ahash_finup(areq); |
| 1264 | } |
| 1265 | |
| 1266 | struct mtk_crypto_alg_template mtk_crypto_md5 = { |
| 1267 | .type = MTK_CRYPTO_ALG_TYPE_AHASH, |
| 1268 | .alg.ahash = { |
| 1269 | .init = mtk_crypto_md5_init, |
| 1270 | .update = mtk_crypto_ahash_update, |
| 1271 | .final = mtk_crypto_ahash_final, |
| 1272 | .finup = mtk_crypto_ahash_finup, |
| 1273 | .digest = mtk_crypto_md5_digest, |
| 1274 | .export = mtk_crypto_ahash_export, |
| 1275 | .import = mtk_crypto_ahash_import, |
| 1276 | .halg = { |
| 1277 | .digestsize = MD5_DIGEST_SIZE, |
| 1278 | .statesize = sizeof(struct mtk_crypto_ahash_export_state), |
| 1279 | .base = { |
| 1280 | .cra_name = "md5", |
| 1281 | .cra_driver_name = "crypto-eip-md5", |
| 1282 | .cra_priority = MTK_CRYPTO_PRIORITY, |
| 1283 | .cra_flags = CRYPTO_ALG_ASYNC | |
| 1284 | CRYPTO_ALG_KERN_DRIVER_ONLY, |
| 1285 | .cra_blocksize = MD5_HMAC_BLOCK_SIZE, |
| 1286 | .cra_ctxsize = sizeof(struct mtk_crypto_ahash_ctx), |
| 1287 | .cra_init = mtk_crypto_ahash_cra_init, |
| 1288 | .cra_exit = mtk_crypto_ahash_cra_exit, |
| 1289 | .cra_module = THIS_MODULE, |
| 1290 | }, |
| 1291 | }, |
| 1292 | }, |
| 1293 | }; |
| 1294 | |
| 1295 | static int mtk_crypto_hmac_md5_init(struct ahash_request *areq) |
| 1296 | { |
| 1297 | struct mtk_crypto_ahash_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(areq)); |
| 1298 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 1299 | |
| 1300 | memset(req, 0, sizeof(*req)); |
| 1301 | |
| 1302 | memcpy(req->state, ctx->ipad, MD5_DIGEST_SIZE); |
| 1303 | req->sa_pointer = ctx->ipad_sa; |
| 1304 | req->token_context = ctx->ipad_token; |
| 1305 | req->not_first = true; |
| 1306 | req->len = MD5_HMAC_BLOCK_SIZE; |
| 1307 | req->processed = MD5_HMAC_BLOCK_SIZE; |
| 1308 | |
| 1309 | ctx->alg = MTK_CRYPTO_ALG_MD5; |
| 1310 | req->digest = MTK_CRYPTO_DIGEST_PRECOMPUTED; |
| 1311 | req->state_sz = MD5_DIGEST_SIZE; |
| 1312 | req->digest_sz = MD5_DIGEST_SIZE; |
| 1313 | req->block_sz = MD5_HMAC_BLOCK_SIZE; |
| 1314 | req->hmac = true; |
| 1315 | |
| 1316 | return 0; |
| 1317 | } |
| 1318 | |
| 1319 | static int mtk_crypto_hmac_md5_setkey(struct crypto_ahash *tfm, const u8 *key, |
| 1320 | unsigned int keylen) |
| 1321 | { |
| 1322 | return mtk_crypto_hmac_alg_setkey(tfm, key, keylen, "crypto-eip-md5", |
| 1323 | MD5_DIGEST_SIZE); |
| 1324 | } |
| 1325 | |
| 1326 | static int mtk_crypto_hmac_md5_digest(struct ahash_request *areq) |
| 1327 | { |
| 1328 | int ret = mtk_crypto_hmac_md5_init(areq); |
| 1329 | |
| 1330 | if (ret) |
| 1331 | return ret; |
| 1332 | |
| 1333 | return mtk_crypto_ahash_finup(areq); |
| 1334 | } |
| 1335 | |
| 1336 | struct mtk_crypto_alg_template mtk_crypto_hmac_md5 = { |
| 1337 | .type = MTK_CRYPTO_ALG_TYPE_AHASH, |
| 1338 | .alg.ahash = { |
| 1339 | .init = mtk_crypto_hmac_md5_init, |
| 1340 | .update = mtk_crypto_ahash_update, |
| 1341 | .final = mtk_crypto_ahash_final, |
| 1342 | .finup = mtk_crypto_ahash_finup, |
| 1343 | .digest = mtk_crypto_hmac_md5_digest, |
| 1344 | .setkey = mtk_crypto_hmac_md5_setkey, |
| 1345 | .export = mtk_crypto_ahash_export, |
| 1346 | .import = mtk_crypto_ahash_import, |
| 1347 | .halg = { |
| 1348 | .digestsize = MD5_DIGEST_SIZE, |
| 1349 | .statesize = sizeof(struct mtk_crypto_ahash_export_state), |
| 1350 | .base = { |
| 1351 | .cra_name = "hmac(md5)", |
| 1352 | .cra_driver_name = "crypto-eip-hmac-md5", |
| 1353 | .cra_priority = MTK_CRYPTO_PRIORITY, |
| 1354 | .cra_flags = CRYPTO_ALG_ASYNC | |
| 1355 | CRYPTO_ALG_KERN_DRIVER_ONLY, |
| 1356 | .cra_blocksize = MD5_HMAC_BLOCK_SIZE, |
| 1357 | .cra_ctxsize = sizeof(struct mtk_crypto_ahash_ctx), |
| 1358 | .cra_init = mtk_crypto_ahash_cra_init, |
| 1359 | .cra_exit = mtk_crypto_ahash_cra_exit, |
| 1360 | .cra_module = THIS_MODULE, |
| 1361 | }, |
| 1362 | }, |
| 1363 | }, |
| 1364 | }; |
| 1365 | |
| 1366 | static int mtk_crypto_cbcmac_init(struct ahash_request *areq) |
| 1367 | { |
| 1368 | struct mtk_crypto_ahash_ctx *ctx = crypto_ahash_ctx(crypto_ahash_reqtfm(areq)); |
| 1369 | struct mtk_crypto_ahash_req *req = ahash_request_ctx(areq); |
| 1370 | |
| 1371 | memset(req, 0, sizeof(*req)); |
| 1372 | memset(req->state, 0, sizeof(u32) * (SHA512_DIGEST_SIZE / sizeof(u32))); |
| 1373 | |
| 1374 | req->len = AES_BLOCK_SIZE; |
| 1375 | req->processed = AES_BLOCK_SIZE; |
| 1376 | |
| 1377 | req->digest = MTK_CRYPTO_DIGEST_XCM; |
| 1378 | req->state_sz = ctx->key_sz; |
| 1379 | req->digest_sz = AES_BLOCK_SIZE; |
| 1380 | req->block_sz = AES_BLOCK_SIZE; |
| 1381 | req->xcbcmac = true; |
| 1382 | |
| 1383 | return 0; |
| 1384 | } |
| 1385 | |
| 1386 | static int mtk_crypto_cbcmac_digest(struct ahash_request *areq) |
| 1387 | { |
| 1388 | return mtk_crypto_cbcmac_init(areq) ?: mtk_crypto_ahash_finup(areq); |
| 1389 | } |
| 1390 | |
| 1391 | static int mtk_crypto_xcbcmac_setkey(struct crypto_ahash *tfm, const u8 *key, |
| 1392 | unsigned int len) |
| 1393 | { |
| 1394 | struct mtk_crypto_ahash_ctx *ctx = crypto_tfm_ctx(crypto_ahash_tfm(tfm)); |
| 1395 | struct crypto_aes_ctx aes; |
| 1396 | u32 key_tmp[3 * AES_BLOCK_SIZE / sizeof(u32)]; |
| 1397 | int ret, i; |
| 1398 | |
| 1399 | ret = aes_expandkey(&aes, key, len); |
| 1400 | if (ret) |
| 1401 | return ret; |
| 1402 | |
| 1403 | crypto_cipher_clear_flags(ctx->kaes, CRYPTO_TFM_REQ_MASK); |
| 1404 | crypto_cipher_set_flags(ctx->kaes, crypto_ahash_get_flags(tfm) & CRYPTO_TFM_REQ_MASK); |
| 1405 | |
| 1406 | ret = crypto_cipher_setkey(ctx->kaes, key, len); |
| 1407 | if (ret) |
| 1408 | return ret; |
| 1409 | |
| 1410 | crypto_cipher_encrypt_one(ctx->kaes, (u8 *)key_tmp + 2 * AES_BLOCK_SIZE, |
| 1411 | "\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1\x1"); |
| 1412 | crypto_cipher_encrypt_one(ctx->kaes, (u8 *)key_tmp, |
| 1413 | "\x2\x2\x2\x2\x2\x2\x2\x2\x2\x2\x2\x2\x2\x2\x2\x2"); |
| 1414 | crypto_cipher_encrypt_one(ctx->kaes, (u8 *)key_tmp + AES_BLOCK_SIZE, |
| 1415 | "\x3\x3\x3\x3\x3\x3\x3\x3\x3\x3\x3\x3\x3\x3\x3\x3"); |
| 1416 | |
| 1417 | for (i = 0; i < 3 * AES_BLOCK_SIZE / sizeof(u32); i++) |
| 1418 | ctx->ipad[i] = |
| 1419 | (__force u32)cpu_to_be32(key_tmp[i]); |
| 1420 | |
| 1421 | crypto_cipher_clear_flags(ctx->kaes, CRYPTO_TFM_REQ_MASK); |
| 1422 | crypto_cipher_set_flags(ctx->kaes, crypto_ahash_get_flags(tfm) & |
| 1423 | CRYPTO_TFM_REQ_MASK); |
| 1424 | ret = crypto_cipher_setkey(ctx->kaes, (u8 *)key_tmp + 2 * AES_BLOCK_SIZE, |
| 1425 | AES_MIN_KEY_SIZE); |
| 1426 | |
| 1427 | if (ret) |
| 1428 | return ret; |
| 1429 | |
| 1430 | ctx->alg = MTK_CRYPTO_ALG_XCBC; |
| 1431 | ctx->key_sz = AES_MIN_KEY_SIZE + 2 * AES_BLOCK_SIZE; |
| 1432 | ctx->cbcmac = false; |
| 1433 | |
| 1434 | memzero_explicit(&aes, sizeof(aes)); |
| 1435 | return 0; |
| 1436 | } |
| 1437 | |
| 1438 | static int mtk_crypto_xcbcmac_cra_init(struct crypto_tfm *tfm) |
| 1439 | { |
| 1440 | struct mtk_crypto_ahash_ctx *ctx = crypto_tfm_ctx(tfm); |
| 1441 | |
| 1442 | mtk_crypto_ahash_cra_init(tfm); |
| 1443 | ctx->kaes = crypto_alloc_cipher("aes", 0, 0); |
| 1444 | return PTR_ERR_OR_ZERO(ctx->kaes); |
| 1445 | } |
| 1446 | |
| 1447 | static void mtk_crypto_xcbcmac_cra_exit(struct crypto_tfm *tfm) |
| 1448 | { |
| 1449 | struct mtk_crypto_ahash_ctx *ctx = crypto_tfm_ctx(tfm); |
| 1450 | |
| 1451 | crypto_free_cipher(ctx->kaes); |
| 1452 | mtk_crypto_ahash_cra_exit(tfm); |
| 1453 | } |
| 1454 | |
| 1455 | struct mtk_crypto_alg_template mtk_crypto_xcbcmac = { |
| 1456 | .type = MTK_CRYPTO_ALG_TYPE_AHASH, |
| 1457 | .alg.ahash = { |
| 1458 | .init = mtk_crypto_cbcmac_init, |
| 1459 | .update = mtk_crypto_ahash_update, |
| 1460 | .final = mtk_crypto_ahash_final, |
| 1461 | .finup = mtk_crypto_ahash_finup, |
| 1462 | .digest = mtk_crypto_cbcmac_digest, |
| 1463 | .setkey = mtk_crypto_xcbcmac_setkey, |
| 1464 | .export = mtk_crypto_ahash_export, |
| 1465 | .import = mtk_crypto_ahash_import, |
| 1466 | .halg = { |
| 1467 | .digestsize = AES_BLOCK_SIZE, |
| 1468 | .statesize = sizeof(struct mtk_crypto_ahash_export_state), |
| 1469 | .base = { |
| 1470 | .cra_name = "xcbc(aes)", |
| 1471 | .cra_driver_name = "crypto-eip-xcbc-aes", |
| 1472 | .cra_priority = MTK_CRYPTO_PRIORITY, |
| 1473 | .cra_flags = CRYPTO_ALG_ASYNC | |
| 1474 | CRYPTO_ALG_KERN_DRIVER_ONLY, |
| 1475 | .cra_blocksize = AES_BLOCK_SIZE, |
| 1476 | .cra_ctxsize = sizeof(struct mtk_crypto_ahash_ctx), |
| 1477 | .cra_init = mtk_crypto_xcbcmac_cra_init, |
| 1478 | .cra_exit = mtk_crypto_xcbcmac_cra_exit, |
| 1479 | .cra_module = THIS_MODULE, |
| 1480 | }, |
| 1481 | }, |
| 1482 | }, |
| 1483 | }; |
| 1484 | |
| 1485 | static int mtk_crypto_cmac_setkey(struct crypto_ahash *tfm, const u8 *key, |
| 1486 | unsigned int len) |
| 1487 | { |
| 1488 | struct mtk_crypto_ahash_ctx *ctx = crypto_tfm_ctx(crypto_ahash_tfm(tfm)); |
| 1489 | struct crypto_aes_ctx aes; |
| 1490 | __be64 consts[4]; |
| 1491 | u64 _const[2]; |
| 1492 | u8 msb_mask, gfmask; |
| 1493 | int ret, i; |
| 1494 | |
| 1495 | ret = aes_expandkey(&aes, key, len); |
| 1496 | if (ret) |
| 1497 | return ret; |
| 1498 | |
| 1499 | crypto_cipher_clear_flags(ctx->kaes, CRYPTO_TFM_REQ_MASK); |
| 1500 | crypto_cipher_set_flags(ctx->kaes, crypto_ahash_get_flags(tfm) & |
| 1501 | CRYPTO_TFM_REQ_MASK); |
| 1502 | ret = crypto_cipher_setkey(ctx->kaes, key, len); |
| 1503 | if (ret) |
| 1504 | return ret; |
| 1505 | |
| 1506 | /* code below borrowed from crypto/cmac.c */ |
| 1507 | /* encrypt the zero block */ |
| 1508 | memset(consts, 0, AES_BLOCK_SIZE); |
| 1509 | crypto_cipher_encrypt_one(ctx->kaes, (u8 *) consts, (u8 *) consts); |
| 1510 | |
| 1511 | gfmask = 0x87; |
| 1512 | _const[0] = be64_to_cpu(consts[1]); |
| 1513 | _const[1] = be64_to_cpu(consts[0]); |
| 1514 | |
| 1515 | /* gf(2^128) multiply zero-ciphertext with u and u^2 */ |
| 1516 | for (i = 0; i < 4; i += 2) { |
| 1517 | msb_mask = ((s64)_const[1] >> 63) & gfmask; |
| 1518 | _const[1] = (_const[1] << 1) | (_const[0] >> 63); |
| 1519 | _const[0] = (_const[0] << 1) ^ msb_mask; |
| 1520 | |
| 1521 | consts[i + 0] = cpu_to_be64(_const[1]); |
| 1522 | consts[i + 1] = cpu_to_be64(_const[0]); |
| 1523 | } |
| 1524 | /* end of code borrowed from crypto/cmac.c */ |
| 1525 | |
| 1526 | for (i = 0; i < 2 * AES_BLOCK_SIZE / sizeof(u32); i++) |
| 1527 | ctx->ipad[i] = (__force __le32)cpu_to_be32(((u32 *) consts)[i]); |
| 1528 | memcpy((uint8_t *) ctx->ipad + 2 * AES_BLOCK_SIZE, key, len); |
| 1529 | |
| 1530 | if (len == AES_KEYSIZE_192) { |
| 1531 | ctx->alg = MTK_CRYPTO_ALG_CMAC_192; |
| 1532 | ctx->key_sz = 24 + 2 * AES_BLOCK_SIZE; |
| 1533 | } else if (len == AES_KEYSIZE_256) { |
| 1534 | ctx->alg = MTK_CRYPTO_ALG_CMAC_256; |
| 1535 | ctx->key_sz = AES_MAX_KEY_SIZE + 2 * AES_BLOCK_SIZE; |
| 1536 | } else { |
| 1537 | ctx->alg = MTK_CRYPTO_ALG_CMAC_128; |
| 1538 | ctx->key_sz = AES_MIN_KEY_SIZE + 2 * AES_BLOCK_SIZE; |
| 1539 | } |
| 1540 | ctx->cbcmac = false; |
| 1541 | |
| 1542 | memzero_explicit(&aes, sizeof(aes)); |
| 1543 | return 0; |
| 1544 | } |
| 1545 | |
| 1546 | struct mtk_crypto_alg_template mtk_crypto_cmac = { |
| 1547 | .type = MTK_CRYPTO_ALG_TYPE_AHASH, |
| 1548 | .alg.ahash = { |
| 1549 | .init = mtk_crypto_cbcmac_init, |
| 1550 | .update = mtk_crypto_ahash_update, |
| 1551 | .final = mtk_crypto_ahash_final, |
| 1552 | .finup = mtk_crypto_ahash_finup, |
| 1553 | .digest = mtk_crypto_cbcmac_digest, |
| 1554 | .setkey = mtk_crypto_cmac_setkey, |
| 1555 | .export = mtk_crypto_ahash_export, |
| 1556 | .import = mtk_crypto_ahash_import, |
| 1557 | .halg = { |
| 1558 | .digestsize = AES_BLOCK_SIZE, |
| 1559 | .statesize = sizeof(struct mtk_crypto_ahash_export_state), |
| 1560 | .base = { |
| 1561 | .cra_name = "cmac(aes)", |
| 1562 | .cra_driver_name = "crypto-eip-cmac-aes", |
| 1563 | .cra_priority = MTK_CRYPTO_PRIORITY, |
| 1564 | .cra_flags = CRYPTO_ALG_ASYNC | |
| 1565 | CRYPTO_ALG_KERN_DRIVER_ONLY, |
| 1566 | .cra_blocksize = AES_BLOCK_SIZE, |
| 1567 | .cra_ctxsize = sizeof(struct mtk_crypto_ahash_ctx), |
| 1568 | .cra_init = mtk_crypto_xcbcmac_cra_init, |
| 1569 | .cra_exit = mtk_crypto_xcbcmac_cra_exit, |
| 1570 | .cra_module = THIS_MODULE, |
| 1571 | }, |
| 1572 | }, |
| 1573 | }, |
| 1574 | }; |
| 1575 | |