1 /*- 2 * BSD LICENSE 3 * 4 * Copyright(c) 2016 Intel Corporation. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 10 * * Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * * Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in 14 * the documentation and/or other materials provided with the 15 * distribution. 16 * * Neither the name of Intel Corporation nor the names of its 17 * contributors may be used to endorse or promote products derived 18 * from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 23 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 24 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 25 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 26 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include <rte_common.h> 34 #include <rte_hexdump.h> 35 #include <rte_cryptodev.h> 36 #include <rte_cryptodev_pmd.h> 37 #include <rte_vdev.h> 38 #include <rte_malloc.h> 39 #include <rte_cpuflags.h> 40 41 #include <openssl/evp.h> 42 43 #include "rte_openssl_pmd_private.h" 44 45 static int cryptodev_openssl_remove(const char *name); 46 47 /*----------------------------------------------------------------------------*/ 48 49 /** 50 * Global static parameter used to create a unique name for each 51 * OPENSSL crypto device. 52 */ 53 static unsigned int unique_name_id; 54 55 static inline int 56 create_unique_device_name(char *name, size_t size) 57 { 58 int ret; 59 60 if (name == NULL) 61 return -EINVAL; 62 63 ret = snprintf(name, size, "%s_%u", 64 RTE_STR(CRYPTODEV_NAME_OPENSSL_PMD), 65 unique_name_id++); 66 if (ret < 0) 67 return ret; 68 return 0; 69 } 70 71 /** 72 * Increment counter by 1 73 * Counter is 64 bit array, big-endian 74 */ 75 static void 76 ctr_inc(uint8_t *ctr) 77 { 78 uint64_t *ctr64 = (uint64_t *)ctr; 79 80 *ctr64 = __builtin_bswap64(*ctr64); 81 (*ctr64)++; 82 *ctr64 = __builtin_bswap64(*ctr64); 83 } 84 85 /* 86 *------------------------------------------------------------------------------ 87 * Session Prepare 88 *------------------------------------------------------------------------------ 89 */ 90 91 /** Get xform chain order */ 92 static enum openssl_chain_order 93 openssl_get_chain_order(const struct rte_crypto_sym_xform *xform) 94 { 95 enum openssl_chain_order res = OPENSSL_CHAIN_NOT_SUPPORTED; 96 97 if (xform != NULL) { 98 if (xform->type == RTE_CRYPTO_SYM_XFORM_AUTH) { 99 if (xform->next == NULL) 100 res = OPENSSL_CHAIN_ONLY_AUTH; 101 else if (xform->next->type == 102 RTE_CRYPTO_SYM_XFORM_CIPHER) 103 res = OPENSSL_CHAIN_AUTH_CIPHER; 104 } 105 if (xform->type == RTE_CRYPTO_SYM_XFORM_CIPHER) { 106 if (xform->next == NULL) 107 res = OPENSSL_CHAIN_ONLY_CIPHER; 108 else if (xform->next->type == RTE_CRYPTO_SYM_XFORM_AUTH) 109 res = OPENSSL_CHAIN_CIPHER_AUTH; 110 } 111 } 112 113 return res; 114 } 115 116 /** Get session cipher key from input cipher key */ 117 static void 118 get_cipher_key(uint8_t *input_key, int keylen, uint8_t *session_key) 119 { 120 memcpy(session_key, input_key, keylen); 121 } 122 123 /** Get key ede 24 bytes standard from input key */ 124 static int 125 get_cipher_key_ede(uint8_t *key, int keylen, uint8_t *key_ede) 126 { 127 int res = 0; 128 129 /* Initialize keys - 24 bytes: [key1-key2-key3] */ 130 switch (keylen) { 131 case 24: 132 memcpy(key_ede, key, 24); 133 break; 134 case 16: 135 /* K3 = K1 */ 136 memcpy(key_ede, key, 16); 137 memcpy(key_ede + 16, key, 8); 138 break; 139 case 8: 140 /* K1 = K2 = K3 (DES compatibility) */ 141 memcpy(key_ede, key, 8); 142 memcpy(key_ede + 8, key, 8); 143 memcpy(key_ede + 16, key, 8); 144 break; 145 default: 146 OPENSSL_LOG_ERR("Unsupported key size"); 147 res = -EINVAL; 148 } 149 150 return res; 151 } 152 153 /** Get adequate openssl function for input cipher algorithm */ 154 static uint8_t 155 get_cipher_algo(enum rte_crypto_cipher_algorithm sess_algo, size_t keylen, 156 const EVP_CIPHER **algo) 157 { 158 int res = 0; 159 160 if (algo != NULL) { 161 switch (sess_algo) { 162 case RTE_CRYPTO_CIPHER_3DES_CBC: 163 switch (keylen) { 164 case 16: 165 *algo = EVP_des_ede_cbc(); 166 break; 167 case 24: 168 *algo = EVP_des_ede3_cbc(); 169 break; 170 default: 171 res = -EINVAL; 172 } 173 break; 174 case RTE_CRYPTO_CIPHER_3DES_CTR: 175 break; 176 case RTE_CRYPTO_CIPHER_AES_CBC: 177 switch (keylen) { 178 case 16: 179 *algo = EVP_aes_128_cbc(); 180 break; 181 case 24: 182 *algo = EVP_aes_192_cbc(); 183 break; 184 case 32: 185 *algo = EVP_aes_256_cbc(); 186 break; 187 default: 188 res = -EINVAL; 189 } 190 break; 191 case RTE_CRYPTO_CIPHER_AES_CTR: 192 switch (keylen) { 193 case 16: 194 *algo = EVP_aes_128_ctr(); 195 break; 196 case 24: 197 *algo = EVP_aes_192_ctr(); 198 break; 199 case 32: 200 *algo = EVP_aes_256_ctr(); 201 break; 202 default: 203 res = -EINVAL; 204 } 205 break; 206 case RTE_CRYPTO_CIPHER_AES_GCM: 207 switch (keylen) { 208 case 16: 209 *algo = EVP_aes_128_gcm(); 210 break; 211 case 24: 212 *algo = EVP_aes_192_gcm(); 213 break; 214 case 32: 215 *algo = EVP_aes_256_gcm(); 216 break; 217 default: 218 res = -EINVAL; 219 } 220 break; 221 default: 222 res = -EINVAL; 223 break; 224 } 225 } else { 226 res = -EINVAL; 227 } 228 229 return res; 230 } 231 232 /** Get adequate openssl function for input auth algorithm */ 233 static uint8_t 234 get_auth_algo(enum rte_crypto_auth_algorithm sessalgo, 235 const EVP_MD **algo) 236 { 237 int res = 0; 238 239 if (algo != NULL) { 240 switch (sessalgo) { 241 case RTE_CRYPTO_AUTH_MD5: 242 case RTE_CRYPTO_AUTH_MD5_HMAC: 243 *algo = EVP_md5(); 244 break; 245 case RTE_CRYPTO_AUTH_SHA1: 246 case RTE_CRYPTO_AUTH_SHA1_HMAC: 247 *algo = EVP_sha1(); 248 break; 249 case RTE_CRYPTO_AUTH_SHA224: 250 case RTE_CRYPTO_AUTH_SHA224_HMAC: 251 *algo = EVP_sha224(); 252 break; 253 case RTE_CRYPTO_AUTH_SHA256: 254 case RTE_CRYPTO_AUTH_SHA256_HMAC: 255 *algo = EVP_sha256(); 256 break; 257 case RTE_CRYPTO_AUTH_SHA384: 258 case RTE_CRYPTO_AUTH_SHA384_HMAC: 259 *algo = EVP_sha384(); 260 break; 261 case RTE_CRYPTO_AUTH_SHA512: 262 case RTE_CRYPTO_AUTH_SHA512_HMAC: 263 *algo = EVP_sha512(); 264 break; 265 default: 266 res = -EINVAL; 267 break; 268 } 269 } else { 270 res = -EINVAL; 271 } 272 273 return res; 274 } 275 276 /** Set session cipher parameters */ 277 static int 278 openssl_set_session_cipher_parameters(struct openssl_session *sess, 279 const struct rte_crypto_sym_xform *xform) 280 { 281 /* Select cipher direction */ 282 sess->cipher.direction = xform->cipher.op; 283 /* Select cipher key */ 284 sess->cipher.key.length = xform->cipher.key.length; 285 286 /* Select cipher algo */ 287 switch (xform->cipher.algo) { 288 case RTE_CRYPTO_CIPHER_3DES_CBC: 289 case RTE_CRYPTO_CIPHER_AES_CBC: 290 case RTE_CRYPTO_CIPHER_AES_CTR: 291 case RTE_CRYPTO_CIPHER_AES_GCM: 292 sess->cipher.mode = OPENSSL_CIPHER_LIB; 293 sess->cipher.algo = xform->cipher.algo; 294 sess->cipher.ctx = EVP_CIPHER_CTX_new(); 295 296 if (get_cipher_algo(sess->cipher.algo, sess->cipher.key.length, 297 &sess->cipher.evp_algo) != 0) 298 return -EINVAL; 299 300 get_cipher_key(xform->cipher.key.data, sess->cipher.key.length, 301 sess->cipher.key.data); 302 303 break; 304 305 case RTE_CRYPTO_CIPHER_3DES_CTR: 306 sess->cipher.mode = OPENSSL_CIPHER_DES3CTR; 307 sess->cipher.ctx = EVP_CIPHER_CTX_new(); 308 309 if (get_cipher_key_ede(xform->cipher.key.data, 310 sess->cipher.key.length, 311 sess->cipher.key.data) != 0) 312 return -EINVAL; 313 break; 314 315 default: 316 sess->cipher.algo = RTE_CRYPTO_CIPHER_NULL; 317 return -EINVAL; 318 } 319 320 return 0; 321 } 322 323 /* Set session auth parameters */ 324 static int 325 openssl_set_session_auth_parameters(struct openssl_session *sess, 326 const struct rte_crypto_sym_xform *xform) 327 { 328 /* Select auth generate/verify */ 329 sess->auth.operation = xform->auth.op; 330 sess->auth.algo = xform->auth.algo; 331 332 /* Select auth algo */ 333 switch (xform->auth.algo) { 334 case RTE_CRYPTO_AUTH_AES_GMAC: 335 case RTE_CRYPTO_AUTH_AES_GCM: 336 /* Check additional condition for AES_GMAC/GCM */ 337 if (sess->cipher.algo != RTE_CRYPTO_CIPHER_AES_GCM) 338 return -EINVAL; 339 sess->chain_order = OPENSSL_CHAIN_COMBINED; 340 break; 341 342 case RTE_CRYPTO_AUTH_MD5: 343 case RTE_CRYPTO_AUTH_SHA1: 344 case RTE_CRYPTO_AUTH_SHA224: 345 case RTE_CRYPTO_AUTH_SHA256: 346 case RTE_CRYPTO_AUTH_SHA384: 347 case RTE_CRYPTO_AUTH_SHA512: 348 sess->auth.mode = OPENSSL_AUTH_AS_AUTH; 349 if (get_auth_algo(xform->auth.algo, 350 &sess->auth.auth.evp_algo) != 0) 351 return -EINVAL; 352 sess->auth.auth.ctx = EVP_MD_CTX_create(); 353 break; 354 355 case RTE_CRYPTO_AUTH_MD5_HMAC: 356 case RTE_CRYPTO_AUTH_SHA1_HMAC: 357 case RTE_CRYPTO_AUTH_SHA224_HMAC: 358 case RTE_CRYPTO_AUTH_SHA256_HMAC: 359 case RTE_CRYPTO_AUTH_SHA384_HMAC: 360 case RTE_CRYPTO_AUTH_SHA512_HMAC: 361 sess->auth.mode = OPENSSL_AUTH_AS_HMAC; 362 sess->auth.hmac.ctx = EVP_MD_CTX_create(); 363 if (get_auth_algo(xform->auth.algo, 364 &sess->auth.hmac.evp_algo) != 0) 365 return -EINVAL; 366 sess->auth.hmac.pkey = EVP_PKEY_new_mac_key(EVP_PKEY_HMAC, NULL, 367 xform->auth.key.data, xform->auth.key.length); 368 break; 369 370 default: 371 return -EINVAL; 372 } 373 374 return 0; 375 } 376 377 /** Parse crypto xform chain and set private session parameters */ 378 int 379 openssl_set_session_parameters(struct openssl_session *sess, 380 const struct rte_crypto_sym_xform *xform) 381 { 382 const struct rte_crypto_sym_xform *cipher_xform = NULL; 383 const struct rte_crypto_sym_xform *auth_xform = NULL; 384 385 sess->chain_order = openssl_get_chain_order(xform); 386 switch (sess->chain_order) { 387 case OPENSSL_CHAIN_ONLY_CIPHER: 388 cipher_xform = xform; 389 break; 390 case OPENSSL_CHAIN_ONLY_AUTH: 391 auth_xform = xform; 392 break; 393 case OPENSSL_CHAIN_CIPHER_AUTH: 394 cipher_xform = xform; 395 auth_xform = xform->next; 396 break; 397 case OPENSSL_CHAIN_AUTH_CIPHER: 398 auth_xform = xform; 399 cipher_xform = xform->next; 400 break; 401 default: 402 return -EINVAL; 403 } 404 405 /* cipher_xform must be check before auth_xform */ 406 if (cipher_xform) { 407 if (openssl_set_session_cipher_parameters( 408 sess, cipher_xform)) { 409 OPENSSL_LOG_ERR( 410 "Invalid/unsupported cipher parameters"); 411 return -EINVAL; 412 } 413 } 414 415 if (auth_xform) { 416 if (openssl_set_session_auth_parameters(sess, auth_xform)) { 417 OPENSSL_LOG_ERR( 418 "Invalid/unsupported auth parameters"); 419 return -EINVAL; 420 } 421 } 422 423 return 0; 424 } 425 426 /** Reset private session parameters */ 427 void 428 openssl_reset_session(struct openssl_session *sess) 429 { 430 EVP_CIPHER_CTX_free(sess->cipher.ctx); 431 432 switch (sess->auth.mode) { 433 case OPENSSL_AUTH_AS_AUTH: 434 EVP_MD_CTX_destroy(sess->auth.auth.ctx); 435 break; 436 case OPENSSL_AUTH_AS_HMAC: 437 EVP_PKEY_free(sess->auth.hmac.pkey); 438 EVP_MD_CTX_destroy(sess->auth.hmac.ctx); 439 break; 440 default: 441 break; 442 } 443 } 444 445 /** Provide session for operation */ 446 static struct openssl_session * 447 get_session(struct openssl_qp *qp, struct rte_crypto_op *op) 448 { 449 struct openssl_session *sess = NULL; 450 451 if (op->sym->sess_type == RTE_CRYPTO_SYM_OP_WITH_SESSION) { 452 /* get existing session */ 453 if (likely(op->sym->session != NULL && 454 op->sym->session->dev_type == 455 RTE_CRYPTODEV_OPENSSL_PMD)) 456 sess = (struct openssl_session *) 457 op->sym->session->_private; 458 } else { 459 /* provide internal session */ 460 void *_sess = NULL; 461 462 if (!rte_mempool_get(qp->sess_mp, (void **)&_sess)) { 463 sess = (struct openssl_session *) 464 ((struct rte_cryptodev_sym_session *)_sess) 465 ->_private; 466 467 if (unlikely(openssl_set_session_parameters( 468 sess, op->sym->xform) != 0)) { 469 rte_mempool_put(qp->sess_mp, _sess); 470 sess = NULL; 471 } else 472 op->sym->session = _sess; 473 } 474 } 475 476 if (sess == NULL) 477 op->status = RTE_CRYPTO_OP_STATUS_INVALID_SESSION; 478 479 return sess; 480 } 481 482 /* 483 *------------------------------------------------------------------------------ 484 * Process Operations 485 *------------------------------------------------------------------------------ 486 */ 487 488 /** Process standard openssl cipher encryption */ 489 static int 490 process_openssl_cipher_encrypt(uint8_t *src, uint8_t *dst, 491 uint8_t *iv, uint8_t *key, int srclen, 492 EVP_CIPHER_CTX *ctx, const EVP_CIPHER *algo) 493 { 494 int dstlen, totlen; 495 496 if (EVP_EncryptInit_ex(ctx, algo, NULL, key, iv) <= 0) 497 goto process_cipher_encrypt_err; 498 499 EVP_CIPHER_CTX_set_padding(ctx, 0); 500 501 if (EVP_EncryptUpdate(ctx, dst, &dstlen, src, srclen) <= 0) 502 goto process_cipher_encrypt_err; 503 504 if (EVP_EncryptFinal_ex(ctx, dst + dstlen, &totlen) <= 0) 505 goto process_cipher_encrypt_err; 506 507 return 0; 508 509 process_cipher_encrypt_err: 510 OPENSSL_LOG_ERR("Process openssl cipher encrypt failed"); 511 return -EINVAL; 512 } 513 514 /** Process standard openssl cipher decryption */ 515 static int 516 process_openssl_cipher_decrypt(uint8_t *src, uint8_t *dst, 517 uint8_t *iv, uint8_t *key, int srclen, 518 EVP_CIPHER_CTX *ctx, const EVP_CIPHER *algo) 519 { 520 int dstlen, totlen; 521 522 if (EVP_DecryptInit_ex(ctx, algo, NULL, key, iv) <= 0) 523 goto process_cipher_decrypt_err; 524 525 if (EVP_CIPHER_CTX_set_padding(ctx, 0) <= 0) 526 goto process_cipher_decrypt_err; 527 528 if (EVP_DecryptUpdate(ctx, dst, &dstlen, src, srclen) <= 0) 529 goto process_cipher_decrypt_err; 530 531 if (EVP_DecryptFinal_ex(ctx, dst + dstlen, &totlen) <= 0) 532 goto process_cipher_decrypt_err; 533 534 return 0; 535 536 process_cipher_decrypt_err: 537 OPENSSL_LOG_ERR("Process openssl cipher decrypt failed"); 538 return -EINVAL; 539 } 540 541 /** Process cipher des 3 ctr encryption, decryption algorithm */ 542 static int 543 process_openssl_cipher_des3ctr(uint8_t *src, uint8_t *dst, 544 uint8_t *iv, uint8_t *key, int srclen, EVP_CIPHER_CTX *ctx) 545 { 546 uint8_t ebuf[8], ctr[8]; 547 int unused, n; 548 549 /* We use 3DES encryption also for decryption. 550 * IV is not important for 3DES ecb 551 */ 552 if (EVP_EncryptInit_ex(ctx, EVP_des_ede3_ecb(), NULL, key, NULL) <= 0) 553 goto process_cipher_des3ctr_err; 554 555 memcpy(ctr, iv, 8); 556 n = 0; 557 558 while (n < srclen) { 559 if (n % 8 == 0) { 560 if (EVP_EncryptUpdate(ctx, 561 (unsigned char *)&ebuf, &unused, 562 (const unsigned char *)&ctr, 8) <= 0) 563 goto process_cipher_des3ctr_err; 564 ctr_inc(ctr); 565 } 566 dst[n] = src[n] ^ ebuf[n % 8]; 567 n++; 568 } 569 570 return 0; 571 572 process_cipher_des3ctr_err: 573 OPENSSL_LOG_ERR("Process openssl cipher des 3 ede ctr failed"); 574 return -EINVAL; 575 } 576 577 /** Process auth/encription aes-gcm algorithm */ 578 static int 579 process_openssl_auth_encryption_gcm(uint8_t *src, int srclen, 580 uint8_t *aad, int aadlen, uint8_t *iv, int ivlen, 581 uint8_t *key, uint8_t *dst, uint8_t *tag, 582 EVP_CIPHER_CTX *ctx, const EVP_CIPHER *algo) 583 { 584 int len = 0, unused = 0; 585 uint8_t empty[] = {}; 586 587 if (EVP_EncryptInit_ex(ctx, algo, NULL, NULL, NULL) <= 0) 588 goto process_auth_encryption_gcm_err; 589 590 if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_IVLEN, ivlen, NULL) <= 0) 591 goto process_auth_encryption_gcm_err; 592 593 if (EVP_EncryptInit_ex(ctx, NULL, NULL, key, iv) <= 0) 594 goto process_auth_encryption_gcm_err; 595 596 if (aadlen > 0) { 597 if (EVP_EncryptUpdate(ctx, NULL, &len, aad, aadlen) <= 0) 598 goto process_auth_encryption_gcm_err; 599 600 /* Workaround open ssl bug in version less then 1.0.1f */ 601 if (EVP_EncryptUpdate(ctx, empty, &unused, empty, 0) <= 0) 602 goto process_auth_encryption_gcm_err; 603 } 604 605 if (srclen > 0) 606 if (EVP_EncryptUpdate(ctx, dst, &len, src, srclen) <= 0) 607 goto process_auth_encryption_gcm_err; 608 609 if (EVP_EncryptFinal_ex(ctx, dst + len, &len) <= 0) 610 goto process_auth_encryption_gcm_err; 611 612 if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_GET_TAG, 16, tag) <= 0) 613 goto process_auth_encryption_gcm_err; 614 615 return 0; 616 617 process_auth_encryption_gcm_err: 618 OPENSSL_LOG_ERR("Process openssl auth encryption gcm failed"); 619 return -EINVAL; 620 } 621 622 static int 623 process_openssl_auth_decryption_gcm(uint8_t *src, int srclen, 624 uint8_t *aad, int aadlen, uint8_t *iv, int ivlen, 625 uint8_t *key, uint8_t *dst, uint8_t *tag, 626 EVP_CIPHER_CTX *ctx, const EVP_CIPHER *algo) 627 { 628 int len = 0, unused = 0; 629 uint8_t empty[] = {}; 630 631 if (EVP_DecryptInit_ex(ctx, algo, NULL, NULL, NULL) <= 0) 632 goto process_auth_decryption_gcm_err; 633 634 if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_IVLEN, ivlen, NULL) <= 0) 635 goto process_auth_decryption_gcm_err; 636 637 if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_TAG, 16, tag) <= 0) 638 goto process_auth_decryption_gcm_err; 639 640 if (EVP_DecryptInit_ex(ctx, NULL, NULL, key, iv) <= 0) 641 goto process_auth_decryption_gcm_err; 642 643 if (aadlen > 0) { 644 if (EVP_DecryptUpdate(ctx, NULL, &len, aad, aadlen) <= 0) 645 goto process_auth_decryption_gcm_err; 646 647 /* Workaround open ssl bug in version less then 1.0.1f */ 648 if (EVP_DecryptUpdate(ctx, empty, &unused, empty, 0) <= 0) 649 goto process_auth_decryption_gcm_err; 650 } 651 652 if (srclen > 0) 653 if (EVP_DecryptUpdate(ctx, dst, &len, src, srclen) <= 0) 654 goto process_auth_decryption_gcm_err; 655 656 if (EVP_DecryptFinal_ex(ctx, dst + len, &len) <= 0) 657 goto process_auth_decryption_gcm_final_err; 658 659 return 0; 660 661 process_auth_decryption_gcm_err: 662 OPENSSL_LOG_ERR("Process openssl auth description gcm failed"); 663 return -EINVAL; 664 665 process_auth_decryption_gcm_final_err: 666 return -EFAULT; 667 } 668 669 /** Process standard openssl auth algorithms */ 670 static int 671 process_openssl_auth(uint8_t *src, uint8_t *dst, 672 __rte_unused uint8_t *iv, __rte_unused EVP_PKEY * pkey, 673 int srclen, EVP_MD_CTX *ctx, const EVP_MD *algo) 674 { 675 size_t dstlen; 676 677 if (EVP_DigestInit_ex(ctx, algo, NULL) <= 0) 678 goto process_auth_err; 679 680 if (EVP_DigestUpdate(ctx, (char *)src, srclen) <= 0) 681 goto process_auth_err; 682 683 if (EVP_DigestFinal_ex(ctx, dst, (unsigned int *)&dstlen) <= 0) 684 goto process_auth_err; 685 686 return 0; 687 688 process_auth_err: 689 OPENSSL_LOG_ERR("Process openssl auth failed"); 690 return -EINVAL; 691 } 692 693 /** Process standard openssl auth algorithms with hmac */ 694 static int 695 process_openssl_auth_hmac(uint8_t *src, uint8_t *dst, 696 __rte_unused uint8_t *iv, EVP_PKEY *pkey, 697 int srclen, EVP_MD_CTX *ctx, const EVP_MD *algo) 698 { 699 size_t dstlen; 700 701 if (EVP_DigestSignInit(ctx, NULL, algo, NULL, pkey) <= 0) 702 goto process_auth_err; 703 704 if (EVP_DigestSignUpdate(ctx, (char *)src, srclen) <= 0) 705 goto process_auth_err; 706 707 if (EVP_DigestSignFinal(ctx, dst, &dstlen) <= 0) 708 goto process_auth_err; 709 710 return 0; 711 712 process_auth_err: 713 OPENSSL_LOG_ERR("Process openssl auth failed"); 714 return -EINVAL; 715 } 716 717 /*----------------------------------------------------------------------------*/ 718 719 /** Process auth/cipher combined operation */ 720 static void 721 process_openssl_combined_op 722 (struct rte_crypto_op *op, struct openssl_session *sess, 723 struct rte_mbuf *mbuf_src, struct rte_mbuf *mbuf_dst) 724 { 725 /* cipher */ 726 uint8_t *src = NULL, *dst = NULL, *iv, *tag, *aad; 727 int srclen, ivlen, aadlen, status = -1; 728 729 iv = op->sym->cipher.iv.data; 730 ivlen = op->sym->cipher.iv.length; 731 aad = op->sym->auth.aad.data; 732 aadlen = op->sym->auth.aad.length; 733 734 tag = op->sym->auth.digest.data; 735 if (tag == NULL) 736 tag = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *, 737 op->sym->cipher.data.offset + 738 op->sym->cipher.data.length); 739 740 if (sess->auth.algo == RTE_CRYPTO_AUTH_AES_GMAC) 741 srclen = 0; 742 else { 743 srclen = op->sym->cipher.data.length; 744 src = rte_pktmbuf_mtod_offset(mbuf_src, uint8_t *, 745 op->sym->cipher.data.offset); 746 dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *, 747 op->sym->cipher.data.offset); 748 } 749 750 if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT) 751 status = process_openssl_auth_encryption_gcm( 752 src, srclen, aad, aadlen, iv, ivlen, 753 sess->cipher.key.data, dst, tag, 754 sess->cipher.ctx, sess->cipher.evp_algo); 755 else 756 status = process_openssl_auth_decryption_gcm( 757 src, srclen, aad, aadlen, iv, ivlen, 758 sess->cipher.key.data, dst, tag, 759 sess->cipher.ctx, sess->cipher.evp_algo); 760 761 if (status != 0) { 762 if (status == (-EFAULT) && 763 sess->auth.operation == 764 RTE_CRYPTO_AUTH_OP_VERIFY) 765 op->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED; 766 else 767 op->status = RTE_CRYPTO_OP_STATUS_ERROR; 768 } 769 } 770 771 /** Process cipher operation */ 772 static void 773 process_openssl_cipher_op 774 (struct rte_crypto_op *op, struct openssl_session *sess, 775 struct rte_mbuf *mbuf_src, struct rte_mbuf *mbuf_dst) 776 { 777 uint8_t *src, *dst, *iv; 778 int srclen, status; 779 780 srclen = op->sym->cipher.data.length; 781 src = rte_pktmbuf_mtod_offset(mbuf_src, uint8_t *, 782 op->sym->cipher.data.offset); 783 dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *, 784 op->sym->cipher.data.offset); 785 786 iv = op->sym->cipher.iv.data; 787 788 if (sess->cipher.mode == OPENSSL_CIPHER_LIB) 789 if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT) 790 status = process_openssl_cipher_encrypt(src, dst, iv, 791 sess->cipher.key.data, srclen, 792 sess->cipher.ctx, 793 sess->cipher.evp_algo); 794 else 795 status = process_openssl_cipher_decrypt(src, dst, iv, 796 sess->cipher.key.data, srclen, 797 sess->cipher.ctx, 798 sess->cipher.evp_algo); 799 else 800 status = process_openssl_cipher_des3ctr(src, dst, iv, 801 sess->cipher.key.data, srclen, 802 sess->cipher.ctx); 803 804 if (status != 0) 805 op->status = RTE_CRYPTO_OP_STATUS_ERROR; 806 } 807 808 /** Process auth operation */ 809 static void 810 process_openssl_auth_op 811 (struct rte_crypto_op *op, struct openssl_session *sess, 812 struct rte_mbuf *mbuf_src, struct rte_mbuf *mbuf_dst) 813 { 814 uint8_t *src, *dst; 815 int srclen, status; 816 817 srclen = op->sym->auth.data.length; 818 src = rte_pktmbuf_mtod_offset(mbuf_src, uint8_t *, 819 op->sym->auth.data.offset); 820 821 if (sess->auth.operation == RTE_CRYPTO_AUTH_OP_VERIFY) 822 dst = (uint8_t *)rte_pktmbuf_append(mbuf_src, 823 op->sym->auth.digest.length); 824 else { 825 dst = op->sym->auth.digest.data; 826 if (dst == NULL) 827 dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *, 828 op->sym->auth.data.offset + 829 op->sym->auth.data.length); 830 } 831 832 switch (sess->auth.mode) { 833 case OPENSSL_AUTH_AS_AUTH: 834 status = process_openssl_auth(src, dst, 835 NULL, NULL, srclen, 836 sess->auth.auth.ctx, sess->auth.auth.evp_algo); 837 break; 838 case OPENSSL_AUTH_AS_HMAC: 839 status = process_openssl_auth_hmac(src, dst, 840 NULL, sess->auth.hmac.pkey, srclen, 841 sess->auth.hmac.ctx, sess->auth.hmac.evp_algo); 842 break; 843 default: 844 status = -1; 845 break; 846 } 847 848 if (sess->auth.operation == RTE_CRYPTO_AUTH_OP_VERIFY) { 849 if (memcmp(dst, op->sym->auth.digest.data, 850 op->sym->auth.digest.length) != 0) { 851 op->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED; 852 } 853 /* Trim area used for digest from mbuf. */ 854 rte_pktmbuf_trim(mbuf_src, 855 op->sym->auth.digest.length); 856 } 857 858 if (status != 0) 859 op->status = RTE_CRYPTO_OP_STATUS_ERROR; 860 } 861 862 /** Process crypto operation for mbuf */ 863 static int 864 process_op(const struct openssl_qp *qp, struct rte_crypto_op *op, 865 struct openssl_session *sess) 866 { 867 struct rte_mbuf *msrc, *mdst; 868 int retval; 869 870 msrc = op->sym->m_src; 871 mdst = op->sym->m_dst ? op->sym->m_dst : op->sym->m_src; 872 873 op->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED; 874 875 switch (sess->chain_order) { 876 case OPENSSL_CHAIN_ONLY_CIPHER: 877 process_openssl_cipher_op(op, sess, msrc, mdst); 878 break; 879 case OPENSSL_CHAIN_ONLY_AUTH: 880 process_openssl_auth_op(op, sess, msrc, mdst); 881 break; 882 case OPENSSL_CHAIN_CIPHER_AUTH: 883 process_openssl_cipher_op(op, sess, msrc, mdst); 884 process_openssl_auth_op(op, sess, mdst, mdst); 885 break; 886 case OPENSSL_CHAIN_AUTH_CIPHER: 887 process_openssl_auth_op(op, sess, msrc, mdst); 888 process_openssl_cipher_op(op, sess, msrc, mdst); 889 break; 890 case OPENSSL_CHAIN_COMBINED: 891 process_openssl_combined_op(op, sess, msrc, mdst); 892 break; 893 default: 894 op->status = RTE_CRYPTO_OP_STATUS_ERROR; 895 break; 896 } 897 898 /* Free session if a session-less crypto op */ 899 if (op->sym->sess_type == RTE_CRYPTO_SYM_OP_SESSIONLESS) { 900 openssl_reset_session(sess); 901 memset(sess, 0, sizeof(struct openssl_session)); 902 rte_mempool_put(qp->sess_mp, op->sym->session); 903 op->sym->session = NULL; 904 } 905 906 907 if (op->status == RTE_CRYPTO_OP_STATUS_NOT_PROCESSED) 908 op->status = RTE_CRYPTO_OP_STATUS_SUCCESS; 909 910 if (op->status != RTE_CRYPTO_OP_STATUS_ERROR) 911 retval = rte_ring_enqueue(qp->processed_ops, (void *)op); 912 else 913 retval = -1; 914 915 return retval; 916 } 917 918 /* 919 *------------------------------------------------------------------------------ 920 * PMD Framework 921 *------------------------------------------------------------------------------ 922 */ 923 924 /** Enqueue burst */ 925 static uint16_t 926 openssl_pmd_enqueue_burst(void *queue_pair, struct rte_crypto_op **ops, 927 uint16_t nb_ops) 928 { 929 struct openssl_session *sess; 930 struct openssl_qp *qp = queue_pair; 931 int i, retval; 932 933 for (i = 0; i < nb_ops; i++) { 934 sess = get_session(qp, ops[i]); 935 if (unlikely(sess == NULL)) 936 goto enqueue_err; 937 938 retval = process_op(qp, ops[i], sess); 939 if (unlikely(retval < 0)) 940 goto enqueue_err; 941 } 942 943 qp->stats.enqueued_count += i; 944 return i; 945 946 enqueue_err: 947 qp->stats.enqueue_err_count++; 948 return i; 949 } 950 951 /** Dequeue burst */ 952 static uint16_t 953 openssl_pmd_dequeue_burst(void *queue_pair, struct rte_crypto_op **ops, 954 uint16_t nb_ops) 955 { 956 struct openssl_qp *qp = queue_pair; 957 958 unsigned int nb_dequeued = 0; 959 960 nb_dequeued = rte_ring_dequeue_burst(qp->processed_ops, 961 (void **)ops, nb_ops); 962 qp->stats.dequeued_count += nb_dequeued; 963 964 return nb_dequeued; 965 } 966 967 /** Create OPENSSL crypto device */ 968 static int 969 cryptodev_openssl_create(const char *name, 970 struct rte_crypto_vdev_init_params *init_params) 971 { 972 struct rte_cryptodev *dev; 973 char crypto_dev_name[RTE_CRYPTODEV_NAME_MAX_LEN]; 974 struct openssl_private *internals; 975 976 /* create a unique device name */ 977 if (create_unique_device_name(crypto_dev_name, 978 RTE_CRYPTODEV_NAME_MAX_LEN) != 0) { 979 OPENSSL_LOG_ERR("failed to create unique cryptodev name"); 980 return -EINVAL; 981 } 982 983 dev = rte_cryptodev_pmd_virtual_dev_init(crypto_dev_name, 984 sizeof(struct openssl_private), 985 init_params->socket_id); 986 if (dev == NULL) { 987 OPENSSL_LOG_ERR("failed to create cryptodev vdev"); 988 goto init_error; 989 } 990 991 dev->dev_type = RTE_CRYPTODEV_OPENSSL_PMD; 992 dev->dev_ops = rte_openssl_pmd_ops; 993 994 /* register rx/tx burst functions for data path */ 995 dev->dequeue_burst = openssl_pmd_dequeue_burst; 996 dev->enqueue_burst = openssl_pmd_enqueue_burst; 997 998 dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO | 999 RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING | 1000 RTE_CRYPTODEV_FF_CPU_AESNI; 1001 1002 /* Set vector instructions mode supported */ 1003 internals = dev->data->dev_private; 1004 1005 internals->max_nb_qpairs = init_params->max_nb_queue_pairs; 1006 internals->max_nb_sessions = init_params->max_nb_sessions; 1007 1008 return 0; 1009 1010 init_error: 1011 OPENSSL_LOG_ERR("driver %s: cryptodev_openssl_create failed", name); 1012 1013 cryptodev_openssl_remove(crypto_dev_name); 1014 return -EFAULT; 1015 } 1016 1017 /** Initialise OPENSSL crypto device */ 1018 static int 1019 cryptodev_openssl_probe(const char *name, 1020 const char *input_args) 1021 { 1022 struct rte_crypto_vdev_init_params init_params = { 1023 RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_QUEUE_PAIRS, 1024 RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_SESSIONS, 1025 rte_socket_id() 1026 }; 1027 1028 rte_cryptodev_parse_vdev_init_params(&init_params, input_args); 1029 1030 RTE_LOG(INFO, PMD, "Initialising %s on NUMA node %d\n", name, 1031 init_params.socket_id); 1032 RTE_LOG(INFO, PMD, " Max number of queue pairs = %d\n", 1033 init_params.max_nb_queue_pairs); 1034 RTE_LOG(INFO, PMD, " Max number of sessions = %d\n", 1035 init_params.max_nb_sessions); 1036 1037 return cryptodev_openssl_create(name, &init_params); 1038 } 1039 1040 /** Uninitialise OPENSSL crypto device */ 1041 static int 1042 cryptodev_openssl_remove(const char *name) 1043 { 1044 if (name == NULL) 1045 return -EINVAL; 1046 1047 RTE_LOG(INFO, PMD, 1048 "Closing OPENSSL crypto device %s on numa socket %u\n", 1049 name, rte_socket_id()); 1050 1051 return 0; 1052 } 1053 1054 static struct rte_vdev_driver cryptodev_openssl_pmd_drv = { 1055 .probe = cryptodev_openssl_probe, 1056 .remove = cryptodev_openssl_remove 1057 }; 1058 1059 RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_OPENSSL_PMD, 1060 cryptodev_openssl_pmd_drv); 1061 RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_OPENSSL_PMD, 1062 "max_nb_queue_pairs=<int> " 1063 "max_nb_sessions=<int> " 1064 "socket_id=<int>"); 1065