1 /*- 2 * BSD LICENSE 3 * 4 * Copyright(c) 2016-2017 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_cryptodev_vdev.h> 38 #include <rte_vdev.h> 39 #include <rte_malloc.h> 40 #include <rte_cpuflags.h> 41 42 #include <openssl/hmac.h> 43 #include <openssl/evp.h> 44 45 #include "rte_openssl_pmd_private.h" 46 47 #define DES_BLOCK_SIZE 8 48 49 static uint8_t cryptodev_driver_id; 50 51 #if (OPENSSL_VERSION_NUMBER < 0x10100000L) 52 static HMAC_CTX *HMAC_CTX_new(void) 53 { 54 HMAC_CTX *ctx = OPENSSL_malloc(sizeof(*ctx)); 55 56 if (ctx != NULL) 57 HMAC_CTX_init(ctx); 58 return ctx; 59 } 60 61 static void HMAC_CTX_free(HMAC_CTX *ctx) 62 { 63 if (ctx != NULL) { 64 HMAC_CTX_cleanup(ctx); 65 OPENSSL_free(ctx); 66 } 67 } 68 #endif 69 70 static int cryptodev_openssl_remove(struct rte_vdev_device *vdev); 71 72 /*----------------------------------------------------------------------------*/ 73 74 /** 75 * Increment counter by 1 76 * Counter is 64 bit array, big-endian 77 */ 78 static void 79 ctr_inc(uint8_t *ctr) 80 { 81 uint64_t *ctr64 = (uint64_t *)ctr; 82 83 *ctr64 = __builtin_bswap64(*ctr64); 84 (*ctr64)++; 85 *ctr64 = __builtin_bswap64(*ctr64); 86 } 87 88 /* 89 *------------------------------------------------------------------------------ 90 * Session Prepare 91 *------------------------------------------------------------------------------ 92 */ 93 94 /** Get xform chain order */ 95 static enum openssl_chain_order 96 openssl_get_chain_order(const struct rte_crypto_sym_xform *xform) 97 { 98 enum openssl_chain_order res = OPENSSL_CHAIN_NOT_SUPPORTED; 99 100 if (xform != NULL) { 101 if (xform->type == RTE_CRYPTO_SYM_XFORM_AUTH) { 102 if (xform->next == NULL) 103 res = OPENSSL_CHAIN_ONLY_AUTH; 104 else if (xform->next->type == 105 RTE_CRYPTO_SYM_XFORM_CIPHER) 106 res = OPENSSL_CHAIN_AUTH_CIPHER; 107 } 108 if (xform->type == RTE_CRYPTO_SYM_XFORM_CIPHER) { 109 if (xform->next == NULL) 110 res = OPENSSL_CHAIN_ONLY_CIPHER; 111 else if (xform->next->type == RTE_CRYPTO_SYM_XFORM_AUTH) 112 res = OPENSSL_CHAIN_CIPHER_AUTH; 113 } 114 if (xform->type == RTE_CRYPTO_SYM_XFORM_AEAD) 115 res = OPENSSL_CHAIN_COMBINED; 116 } 117 118 return res; 119 } 120 121 /** Get session cipher key from input cipher key */ 122 static void 123 get_cipher_key(uint8_t *input_key, int keylen, uint8_t *session_key) 124 { 125 memcpy(session_key, input_key, keylen); 126 } 127 128 /** Get key ede 24 bytes standard from input key */ 129 static int 130 get_cipher_key_ede(uint8_t *key, int keylen, uint8_t *key_ede) 131 { 132 int res = 0; 133 134 /* Initialize keys - 24 bytes: [key1-key2-key3] */ 135 switch (keylen) { 136 case 24: 137 memcpy(key_ede, key, 24); 138 break; 139 case 16: 140 /* K3 = K1 */ 141 memcpy(key_ede, key, 16); 142 memcpy(key_ede + 16, key, 8); 143 break; 144 case 8: 145 /* K1 = K2 = K3 (DES compatibility) */ 146 memcpy(key_ede, key, 8); 147 memcpy(key_ede + 8, key, 8); 148 memcpy(key_ede + 16, key, 8); 149 break; 150 default: 151 OPENSSL_LOG_ERR("Unsupported key size"); 152 res = -EINVAL; 153 } 154 155 return res; 156 } 157 158 /** Get adequate openssl function for input cipher algorithm */ 159 static uint8_t 160 get_cipher_algo(enum rte_crypto_cipher_algorithm sess_algo, size_t keylen, 161 const EVP_CIPHER **algo) 162 { 163 int res = 0; 164 165 if (algo != NULL) { 166 switch (sess_algo) { 167 case RTE_CRYPTO_CIPHER_3DES_CBC: 168 switch (keylen) { 169 case 16: 170 *algo = EVP_des_ede_cbc(); 171 break; 172 case 24: 173 *algo = EVP_des_ede3_cbc(); 174 break; 175 default: 176 res = -EINVAL; 177 } 178 break; 179 case RTE_CRYPTO_CIPHER_3DES_CTR: 180 break; 181 case RTE_CRYPTO_CIPHER_AES_CBC: 182 switch (keylen) { 183 case 16: 184 *algo = EVP_aes_128_cbc(); 185 break; 186 case 24: 187 *algo = EVP_aes_192_cbc(); 188 break; 189 case 32: 190 *algo = EVP_aes_256_cbc(); 191 break; 192 default: 193 res = -EINVAL; 194 } 195 break; 196 case RTE_CRYPTO_CIPHER_AES_CTR: 197 switch (keylen) { 198 case 16: 199 *algo = EVP_aes_128_ctr(); 200 break; 201 case 24: 202 *algo = EVP_aes_192_ctr(); 203 break; 204 case 32: 205 *algo = EVP_aes_256_ctr(); 206 break; 207 default: 208 res = -EINVAL; 209 } 210 break; 211 default: 212 res = -EINVAL; 213 break; 214 } 215 } else { 216 res = -EINVAL; 217 } 218 219 return res; 220 } 221 222 /** Get adequate openssl function for input auth algorithm */ 223 static uint8_t 224 get_auth_algo(enum rte_crypto_auth_algorithm sessalgo, 225 const EVP_MD **algo) 226 { 227 int res = 0; 228 229 if (algo != NULL) { 230 switch (sessalgo) { 231 case RTE_CRYPTO_AUTH_MD5: 232 case RTE_CRYPTO_AUTH_MD5_HMAC: 233 *algo = EVP_md5(); 234 break; 235 case RTE_CRYPTO_AUTH_SHA1: 236 case RTE_CRYPTO_AUTH_SHA1_HMAC: 237 *algo = EVP_sha1(); 238 break; 239 case RTE_CRYPTO_AUTH_SHA224: 240 case RTE_CRYPTO_AUTH_SHA224_HMAC: 241 *algo = EVP_sha224(); 242 break; 243 case RTE_CRYPTO_AUTH_SHA256: 244 case RTE_CRYPTO_AUTH_SHA256_HMAC: 245 *algo = EVP_sha256(); 246 break; 247 case RTE_CRYPTO_AUTH_SHA384: 248 case RTE_CRYPTO_AUTH_SHA384_HMAC: 249 *algo = EVP_sha384(); 250 break; 251 case RTE_CRYPTO_AUTH_SHA512: 252 case RTE_CRYPTO_AUTH_SHA512_HMAC: 253 *algo = EVP_sha512(); 254 break; 255 default: 256 res = -EINVAL; 257 break; 258 } 259 } else { 260 res = -EINVAL; 261 } 262 263 return res; 264 } 265 266 /** Get adequate openssl function for input cipher algorithm */ 267 static uint8_t 268 get_aead_algo(enum rte_crypto_aead_algorithm sess_algo, size_t keylen, 269 const EVP_CIPHER **algo) 270 { 271 int res = 0; 272 273 if (algo != NULL) { 274 switch (sess_algo) { 275 case RTE_CRYPTO_AEAD_AES_GCM: 276 switch (keylen) { 277 case 16: 278 *algo = EVP_aes_128_gcm(); 279 break; 280 case 24: 281 *algo = EVP_aes_192_gcm(); 282 break; 283 case 32: 284 *algo = EVP_aes_256_gcm(); 285 break; 286 default: 287 res = -EINVAL; 288 } 289 break; 290 default: 291 res = -EINVAL; 292 break; 293 } 294 } else { 295 res = -EINVAL; 296 } 297 298 return res; 299 } 300 301 /** Set session cipher parameters */ 302 static int 303 openssl_set_session_cipher_parameters(struct openssl_session *sess, 304 const struct rte_crypto_sym_xform *xform) 305 { 306 /* Select cipher direction */ 307 sess->cipher.direction = xform->cipher.op; 308 /* Select cipher key */ 309 sess->cipher.key.length = xform->cipher.key.length; 310 311 /* Set IV parameters */ 312 sess->iv.offset = xform->cipher.iv.offset; 313 sess->iv.length = xform->cipher.iv.length; 314 315 /* Select cipher algo */ 316 switch (xform->cipher.algo) { 317 case RTE_CRYPTO_CIPHER_3DES_CBC: 318 case RTE_CRYPTO_CIPHER_AES_CBC: 319 case RTE_CRYPTO_CIPHER_AES_CTR: 320 sess->cipher.mode = OPENSSL_CIPHER_LIB; 321 sess->cipher.algo = xform->cipher.algo; 322 sess->cipher.ctx = EVP_CIPHER_CTX_new(); 323 324 if (get_cipher_algo(sess->cipher.algo, sess->cipher.key.length, 325 &sess->cipher.evp_algo) != 0) 326 return -EINVAL; 327 328 get_cipher_key(xform->cipher.key.data, sess->cipher.key.length, 329 sess->cipher.key.data); 330 if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT) { 331 if (EVP_EncryptInit_ex(sess->cipher.ctx, 332 sess->cipher.evp_algo, 333 NULL, xform->cipher.key.data, 334 NULL) != 1) { 335 return -EINVAL; 336 } 337 } else if (sess->cipher.direction == 338 RTE_CRYPTO_CIPHER_OP_DECRYPT) { 339 if (EVP_DecryptInit_ex(sess->cipher.ctx, 340 sess->cipher.evp_algo, 341 NULL, xform->cipher.key.data, 342 NULL) != 1) { 343 return -EINVAL; 344 } 345 } 346 347 break; 348 349 case RTE_CRYPTO_CIPHER_3DES_CTR: 350 sess->cipher.mode = OPENSSL_CIPHER_DES3CTR; 351 sess->cipher.ctx = EVP_CIPHER_CTX_new(); 352 353 if (get_cipher_key_ede(xform->cipher.key.data, 354 sess->cipher.key.length, 355 sess->cipher.key.data) != 0) 356 return -EINVAL; 357 break; 358 case RTE_CRYPTO_CIPHER_DES_DOCSISBPI: 359 sess->cipher.algo = xform->cipher.algo; 360 sess->chain_order = OPENSSL_CHAIN_CIPHER_BPI; 361 sess->cipher.ctx = EVP_CIPHER_CTX_new(); 362 sess->cipher.evp_algo = EVP_des_cbc(); 363 364 sess->cipher.bpi_ctx = EVP_CIPHER_CTX_new(); 365 /* IV will be ECB encrypted whether direction is encrypt or decrypt */ 366 if (EVP_EncryptInit_ex(sess->cipher.bpi_ctx, EVP_des_ecb(), 367 NULL, xform->cipher.key.data, 0) != 1) 368 return -EINVAL; 369 370 get_cipher_key(xform->cipher.key.data, sess->cipher.key.length, 371 sess->cipher.key.data); 372 if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT) { 373 if (EVP_EncryptInit_ex(sess->cipher.ctx, 374 sess->cipher.evp_algo, 375 NULL, xform->cipher.key.data, 376 NULL) != 1) { 377 return -EINVAL; 378 } 379 } else if (sess->cipher.direction == 380 RTE_CRYPTO_CIPHER_OP_DECRYPT) { 381 if (EVP_DecryptInit_ex(sess->cipher.ctx, 382 sess->cipher.evp_algo, 383 NULL, xform->cipher.key.data, 384 NULL) != 1) { 385 return -EINVAL; 386 } 387 } 388 389 break; 390 default: 391 sess->cipher.algo = RTE_CRYPTO_CIPHER_NULL; 392 return -ENOTSUP; 393 } 394 395 return 0; 396 } 397 398 /* Set session auth parameters */ 399 static int 400 openssl_set_session_auth_parameters(struct openssl_session *sess, 401 const struct rte_crypto_sym_xform *xform) 402 { 403 /* Select auth generate/verify */ 404 sess->auth.operation = xform->auth.op; 405 sess->auth.algo = xform->auth.algo; 406 407 /* Select auth algo */ 408 switch (xform->auth.algo) { 409 case RTE_CRYPTO_AUTH_AES_GMAC: 410 sess->chain_order = OPENSSL_CHAIN_COMBINED; 411 412 /* Set IV parameters */ 413 sess->iv.offset = xform->auth.iv.offset; 414 sess->iv.length = xform->auth.iv.length; 415 416 /* 417 * OpenSSL requires GMAC to be a GCM operation 418 * with no cipher data length 419 */ 420 sess->cipher.mode = OPENSSL_CIPHER_LIB; 421 if (sess->auth.operation == RTE_CRYPTO_AUTH_OP_GENERATE) 422 sess->cipher.direction = RTE_CRYPTO_CIPHER_OP_ENCRYPT; 423 else 424 sess->cipher.direction = RTE_CRYPTO_CIPHER_OP_DECRYPT; 425 426 sess->cipher.key.length = xform->auth.key.length; 427 sess->cipher.ctx = EVP_CIPHER_CTX_new(); 428 429 if (get_aead_algo(RTE_CRYPTO_AEAD_AES_GCM, 430 sess->cipher.key.length, 431 &sess->cipher.evp_algo) != 0) 432 return -EINVAL; 433 434 get_cipher_key(xform->auth.key.data, xform->auth.key.length, 435 sess->cipher.key.data); 436 437 break; 438 439 case RTE_CRYPTO_AUTH_MD5: 440 case RTE_CRYPTO_AUTH_SHA1: 441 case RTE_CRYPTO_AUTH_SHA224: 442 case RTE_CRYPTO_AUTH_SHA256: 443 case RTE_CRYPTO_AUTH_SHA384: 444 case RTE_CRYPTO_AUTH_SHA512: 445 sess->auth.mode = OPENSSL_AUTH_AS_AUTH; 446 if (get_auth_algo(xform->auth.algo, 447 &sess->auth.auth.evp_algo) != 0) 448 return -EINVAL; 449 sess->auth.auth.ctx = EVP_MD_CTX_create(); 450 break; 451 452 case RTE_CRYPTO_AUTH_MD5_HMAC: 453 case RTE_CRYPTO_AUTH_SHA1_HMAC: 454 case RTE_CRYPTO_AUTH_SHA224_HMAC: 455 case RTE_CRYPTO_AUTH_SHA256_HMAC: 456 case RTE_CRYPTO_AUTH_SHA384_HMAC: 457 case RTE_CRYPTO_AUTH_SHA512_HMAC: 458 sess->auth.mode = OPENSSL_AUTH_AS_HMAC; 459 sess->auth.hmac.ctx = HMAC_CTX_new(); 460 if (get_auth_algo(xform->auth.algo, 461 &sess->auth.hmac.evp_algo) != 0) 462 return -EINVAL; 463 464 if (HMAC_Init_ex(sess->auth.hmac.ctx, 465 xform->auth.key.data, 466 xform->auth.key.length, 467 sess->auth.hmac.evp_algo, NULL) != 1) 468 return -EINVAL; 469 break; 470 471 default: 472 return -ENOTSUP; 473 } 474 475 sess->auth.digest_length = xform->auth.digest_length; 476 477 return 0; 478 } 479 480 /* Set session AEAD parameters */ 481 static int 482 openssl_set_session_aead_parameters(struct openssl_session *sess, 483 const struct rte_crypto_sym_xform *xform) 484 { 485 /* Select cipher direction */ 486 sess->cipher.direction = xform->cipher.op; 487 /* Select cipher key */ 488 sess->cipher.key.length = xform->aead.key.length; 489 490 /* Set IV parameters */ 491 sess->iv.offset = xform->aead.iv.offset; 492 sess->iv.length = xform->aead.iv.length; 493 494 /* Select auth generate/verify */ 495 sess->auth.operation = xform->auth.op; 496 sess->auth.algo = xform->auth.algo; 497 498 /* Select auth algo */ 499 switch (xform->aead.algo) { 500 case RTE_CRYPTO_AEAD_AES_GCM: 501 sess->cipher.mode = OPENSSL_CIPHER_LIB; 502 sess->aead_algo = xform->aead.algo; 503 sess->cipher.ctx = EVP_CIPHER_CTX_new(); 504 505 if (get_aead_algo(sess->aead_algo, sess->cipher.key.length, 506 &sess->cipher.evp_algo) != 0) 507 return -EINVAL; 508 509 get_cipher_key(xform->cipher.key.data, sess->cipher.key.length, 510 sess->cipher.key.data); 511 512 sess->chain_order = OPENSSL_CHAIN_COMBINED; 513 break; 514 default: 515 return -ENOTSUP; 516 } 517 518 sess->auth.aad_length = xform->aead.aad_length; 519 sess->auth.digest_length = xform->aead.digest_length; 520 521 return 0; 522 } 523 524 /** Parse crypto xform chain and set private session parameters */ 525 int 526 openssl_set_session_parameters(struct openssl_session *sess, 527 const struct rte_crypto_sym_xform *xform) 528 { 529 const struct rte_crypto_sym_xform *cipher_xform = NULL; 530 const struct rte_crypto_sym_xform *auth_xform = NULL; 531 const struct rte_crypto_sym_xform *aead_xform = NULL; 532 int ret; 533 534 sess->chain_order = openssl_get_chain_order(xform); 535 switch (sess->chain_order) { 536 case OPENSSL_CHAIN_ONLY_CIPHER: 537 cipher_xform = xform; 538 break; 539 case OPENSSL_CHAIN_ONLY_AUTH: 540 auth_xform = xform; 541 break; 542 case OPENSSL_CHAIN_CIPHER_AUTH: 543 cipher_xform = xform; 544 auth_xform = xform->next; 545 break; 546 case OPENSSL_CHAIN_AUTH_CIPHER: 547 auth_xform = xform; 548 cipher_xform = xform->next; 549 break; 550 case OPENSSL_CHAIN_COMBINED: 551 aead_xform = xform; 552 break; 553 default: 554 return -EINVAL; 555 } 556 557 /* Default IV length = 0 */ 558 sess->iv.length = 0; 559 560 /* cipher_xform must be check before auth_xform */ 561 if (cipher_xform) { 562 ret = openssl_set_session_cipher_parameters( 563 sess, cipher_xform); 564 if (ret != 0) { 565 OPENSSL_LOG_ERR( 566 "Invalid/unsupported cipher parameters"); 567 return ret; 568 } 569 } 570 571 if (auth_xform) { 572 ret = openssl_set_session_auth_parameters(sess, auth_xform); 573 if (ret != 0) { 574 OPENSSL_LOG_ERR( 575 "Invalid/unsupported auth parameters"); 576 return ret; 577 } 578 } 579 580 if (aead_xform) { 581 ret = openssl_set_session_aead_parameters(sess, aead_xform); 582 if (ret != 0) { 583 OPENSSL_LOG_ERR( 584 "Invalid/unsupported AEAD parameters"); 585 return ret; 586 } 587 } 588 589 return 0; 590 } 591 592 /** Reset private session parameters */ 593 void 594 openssl_reset_session(struct openssl_session *sess) 595 { 596 EVP_CIPHER_CTX_free(sess->cipher.ctx); 597 598 if (sess->chain_order == OPENSSL_CHAIN_CIPHER_BPI) 599 EVP_CIPHER_CTX_free(sess->cipher.bpi_ctx); 600 601 switch (sess->auth.mode) { 602 case OPENSSL_AUTH_AS_AUTH: 603 EVP_MD_CTX_destroy(sess->auth.auth.ctx); 604 break; 605 case OPENSSL_AUTH_AS_HMAC: 606 EVP_PKEY_free(sess->auth.hmac.pkey); 607 HMAC_CTX_free(sess->auth.hmac.ctx); 608 break; 609 default: 610 break; 611 } 612 } 613 614 /** Provide session for operation */ 615 static struct openssl_session * 616 get_session(struct openssl_qp *qp, struct rte_crypto_op *op) 617 { 618 struct openssl_session *sess = NULL; 619 620 if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION) { 621 /* get existing session */ 622 if (likely(op->sym->session != NULL)) 623 sess = (struct openssl_session *) 624 get_session_private_data( 625 op->sym->session, 626 cryptodev_driver_id); 627 } else { 628 /* provide internal session */ 629 void *_sess = NULL; 630 void *_sess_private_data = NULL; 631 632 if (rte_mempool_get(qp->sess_mp, (void **)&_sess)) 633 return NULL; 634 635 if (rte_mempool_get(qp->sess_mp, (void **)&_sess_private_data)) 636 return NULL; 637 638 sess = (struct openssl_session *)_sess_private_data; 639 640 if (unlikely(openssl_set_session_parameters(sess, 641 op->sym->xform) != 0)) { 642 rte_mempool_put(qp->sess_mp, _sess); 643 rte_mempool_put(qp->sess_mp, _sess_private_data); 644 sess = NULL; 645 } 646 op->sym->session = (struct rte_cryptodev_sym_session *)_sess; 647 set_session_private_data(op->sym->session, cryptodev_driver_id, 648 _sess_private_data); 649 } 650 651 if (sess == NULL) 652 op->status = RTE_CRYPTO_OP_STATUS_INVALID_SESSION; 653 654 return sess; 655 } 656 657 /* 658 *------------------------------------------------------------------------------ 659 * Process Operations 660 *------------------------------------------------------------------------------ 661 */ 662 static inline int 663 process_openssl_encryption_update(struct rte_mbuf *mbuf_src, int offset, 664 uint8_t **dst, int srclen, EVP_CIPHER_CTX *ctx) 665 { 666 struct rte_mbuf *m; 667 int dstlen; 668 int l, n = srclen; 669 uint8_t *src; 670 671 for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m); 672 m = m->next) 673 offset -= rte_pktmbuf_data_len(m); 674 675 if (m == 0) 676 return -1; 677 678 src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset); 679 680 l = rte_pktmbuf_data_len(m) - offset; 681 if (srclen <= l) { 682 if (EVP_EncryptUpdate(ctx, *dst, &dstlen, src, srclen) <= 0) 683 return -1; 684 *dst += l; 685 return 0; 686 } 687 688 if (EVP_EncryptUpdate(ctx, *dst, &dstlen, src, l) <= 0) 689 return -1; 690 691 *dst += dstlen; 692 n -= l; 693 694 for (m = m->next; (m != NULL) && (n > 0); m = m->next) { 695 src = rte_pktmbuf_mtod(m, uint8_t *); 696 l = rte_pktmbuf_data_len(m) < n ? rte_pktmbuf_data_len(m) : n; 697 if (EVP_EncryptUpdate(ctx, *dst, &dstlen, src, l) <= 0) 698 return -1; 699 *dst += dstlen; 700 n -= l; 701 } 702 703 return 0; 704 } 705 706 static inline int 707 process_openssl_decryption_update(struct rte_mbuf *mbuf_src, int offset, 708 uint8_t **dst, int srclen, EVP_CIPHER_CTX *ctx) 709 { 710 struct rte_mbuf *m; 711 int dstlen; 712 int l, n = srclen; 713 uint8_t *src; 714 715 for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m); 716 m = m->next) 717 offset -= rte_pktmbuf_data_len(m); 718 719 if (m == 0) 720 return -1; 721 722 src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset); 723 724 l = rte_pktmbuf_data_len(m) - offset; 725 if (srclen <= l) { 726 if (EVP_DecryptUpdate(ctx, *dst, &dstlen, src, srclen) <= 0) 727 return -1; 728 *dst += l; 729 return 0; 730 } 731 732 if (EVP_DecryptUpdate(ctx, *dst, &dstlen, src, l) <= 0) 733 return -1; 734 735 *dst += dstlen; 736 n -= l; 737 738 for (m = m->next; (m != NULL) && (n > 0); m = m->next) { 739 src = rte_pktmbuf_mtod(m, uint8_t *); 740 l = rte_pktmbuf_data_len(m) < n ? rte_pktmbuf_data_len(m) : n; 741 if (EVP_DecryptUpdate(ctx, *dst, &dstlen, src, l) <= 0) 742 return -1; 743 *dst += dstlen; 744 n -= l; 745 } 746 747 return 0; 748 } 749 750 /** Process standard openssl cipher encryption */ 751 static int 752 process_openssl_cipher_encrypt(struct rte_mbuf *mbuf_src, uint8_t *dst, 753 int offset, uint8_t *iv, int srclen, EVP_CIPHER_CTX *ctx) 754 { 755 int totlen; 756 757 if (EVP_EncryptInit_ex(ctx, NULL, NULL, NULL, iv) <= 0) 758 goto process_cipher_encrypt_err; 759 760 EVP_CIPHER_CTX_set_padding(ctx, 0); 761 762 if (process_openssl_encryption_update(mbuf_src, offset, &dst, 763 srclen, ctx)) 764 goto process_cipher_encrypt_err; 765 766 if (EVP_EncryptFinal_ex(ctx, dst, &totlen) <= 0) 767 goto process_cipher_encrypt_err; 768 769 return 0; 770 771 process_cipher_encrypt_err: 772 OPENSSL_LOG_ERR("Process openssl cipher encrypt failed"); 773 return -EINVAL; 774 } 775 776 /** Process standard openssl cipher encryption */ 777 static int 778 process_openssl_cipher_bpi_encrypt(uint8_t *src, uint8_t *dst, 779 uint8_t *iv, int srclen, 780 EVP_CIPHER_CTX *ctx) 781 { 782 uint8_t i; 783 uint8_t encrypted_iv[DES_BLOCK_SIZE]; 784 int encrypted_ivlen; 785 786 if (EVP_EncryptUpdate(ctx, encrypted_iv, &encrypted_ivlen, 787 iv, DES_BLOCK_SIZE) <= 0) 788 goto process_cipher_encrypt_err; 789 790 for (i = 0; i < srclen; i++) 791 *(dst + i) = *(src + i) ^ (encrypted_iv[i]); 792 793 return 0; 794 795 process_cipher_encrypt_err: 796 OPENSSL_LOG_ERR("Process openssl cipher bpi encrypt failed"); 797 return -EINVAL; 798 } 799 /** Process standard openssl cipher decryption */ 800 static int 801 process_openssl_cipher_decrypt(struct rte_mbuf *mbuf_src, uint8_t *dst, 802 int offset, uint8_t *iv, int srclen, EVP_CIPHER_CTX *ctx) 803 { 804 int totlen; 805 806 if (EVP_DecryptInit_ex(ctx, NULL, NULL, NULL, iv) <= 0) 807 goto process_cipher_decrypt_err; 808 809 EVP_CIPHER_CTX_set_padding(ctx, 0); 810 811 if (process_openssl_decryption_update(mbuf_src, offset, &dst, 812 srclen, ctx)) 813 goto process_cipher_decrypt_err; 814 815 if (EVP_DecryptFinal_ex(ctx, dst, &totlen) <= 0) 816 goto process_cipher_decrypt_err; 817 return 0; 818 819 process_cipher_decrypt_err: 820 OPENSSL_LOG_ERR("Process openssl cipher decrypt failed"); 821 return -EINVAL; 822 } 823 824 /** Process cipher des 3 ctr encryption, decryption algorithm */ 825 static int 826 process_openssl_cipher_des3ctr(struct rte_mbuf *mbuf_src, uint8_t *dst, 827 int offset, uint8_t *iv, uint8_t *key, int srclen, 828 EVP_CIPHER_CTX *ctx) 829 { 830 uint8_t ebuf[8], ctr[8]; 831 int unused, n; 832 struct rte_mbuf *m; 833 uint8_t *src; 834 int l; 835 836 for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m); 837 m = m->next) 838 offset -= rte_pktmbuf_data_len(m); 839 840 if (m == 0) 841 goto process_cipher_des3ctr_err; 842 843 src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset); 844 l = rte_pktmbuf_data_len(m) - offset; 845 846 /* We use 3DES encryption also for decryption. 847 * IV is not important for 3DES ecb 848 */ 849 if (EVP_EncryptInit_ex(ctx, EVP_des_ede3_ecb(), NULL, key, NULL) <= 0) 850 goto process_cipher_des3ctr_err; 851 852 memcpy(ctr, iv, 8); 853 854 for (n = 0; n < srclen; n++) { 855 if (n % 8 == 0) { 856 if (EVP_EncryptUpdate(ctx, 857 (unsigned char *)&ebuf, &unused, 858 (const unsigned char *)&ctr, 8) <= 0) 859 goto process_cipher_des3ctr_err; 860 ctr_inc(ctr); 861 } 862 dst[n] = *(src++) ^ ebuf[n % 8]; 863 864 l--; 865 if (!l) { 866 m = m->next; 867 if (m) { 868 src = rte_pktmbuf_mtod(m, uint8_t *); 869 l = rte_pktmbuf_data_len(m); 870 } 871 } 872 } 873 874 return 0; 875 876 process_cipher_des3ctr_err: 877 OPENSSL_LOG_ERR("Process openssl cipher des 3 ede ctr failed"); 878 return -EINVAL; 879 } 880 881 /** Process auth/encription aes-gcm algorithm */ 882 static int 883 process_openssl_auth_encryption_gcm(struct rte_mbuf *mbuf_src, int offset, 884 int srclen, uint8_t *aad, int aadlen, uint8_t *iv, int ivlen, 885 uint8_t *key, uint8_t *dst, uint8_t *tag, 886 EVP_CIPHER_CTX *ctx, const EVP_CIPHER *algo) 887 { 888 int len = 0, unused = 0; 889 uint8_t empty[] = {}; 890 891 if (EVP_EncryptInit_ex(ctx, algo, NULL, NULL, NULL) <= 0) 892 goto process_auth_encryption_gcm_err; 893 894 if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_IVLEN, ivlen, NULL) <= 0) 895 goto process_auth_encryption_gcm_err; 896 897 if (EVP_EncryptInit_ex(ctx, NULL, NULL, key, iv) <= 0) 898 goto process_auth_encryption_gcm_err; 899 900 if (aadlen > 0) 901 if (EVP_EncryptUpdate(ctx, NULL, &len, aad, aadlen) <= 0) 902 goto process_auth_encryption_gcm_err; 903 904 if (srclen > 0) 905 if (process_openssl_encryption_update(mbuf_src, offset, &dst, 906 srclen, ctx)) 907 goto process_auth_encryption_gcm_err; 908 909 /* Workaround open ssl bug in version less then 1.0.1f */ 910 if (EVP_EncryptUpdate(ctx, empty, &unused, empty, 0) <= 0) 911 goto process_auth_encryption_gcm_err; 912 913 if (EVP_EncryptFinal_ex(ctx, dst, &len) <= 0) 914 goto process_auth_encryption_gcm_err; 915 916 if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_GET_TAG, 16, tag) <= 0) 917 goto process_auth_encryption_gcm_err; 918 919 return 0; 920 921 process_auth_encryption_gcm_err: 922 OPENSSL_LOG_ERR("Process openssl auth encryption gcm failed"); 923 return -EINVAL; 924 } 925 926 static int 927 process_openssl_auth_decryption_gcm(struct rte_mbuf *mbuf_src, int offset, 928 int srclen, uint8_t *aad, int aadlen, uint8_t *iv, int ivlen, 929 uint8_t *key, uint8_t *dst, uint8_t *tag, EVP_CIPHER_CTX *ctx, 930 const EVP_CIPHER *algo) 931 { 932 int len = 0, unused = 0; 933 uint8_t empty[] = {}; 934 935 if (EVP_DecryptInit_ex(ctx, algo, NULL, NULL, NULL) <= 0) 936 goto process_auth_decryption_gcm_err; 937 938 if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_IVLEN, ivlen, NULL) <= 0) 939 goto process_auth_decryption_gcm_err; 940 941 if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_TAG, 16, tag) <= 0) 942 goto process_auth_decryption_gcm_err; 943 944 if (EVP_DecryptInit_ex(ctx, NULL, NULL, key, iv) <= 0) 945 goto process_auth_decryption_gcm_err; 946 947 if (aadlen > 0) 948 if (EVP_DecryptUpdate(ctx, NULL, &len, aad, aadlen) <= 0) 949 goto process_auth_decryption_gcm_err; 950 951 if (srclen > 0) 952 if (process_openssl_decryption_update(mbuf_src, offset, &dst, 953 srclen, ctx)) 954 goto process_auth_decryption_gcm_err; 955 956 /* Workaround open ssl bug in version less then 1.0.1f */ 957 if (EVP_DecryptUpdate(ctx, empty, &unused, empty, 0) <= 0) 958 goto process_auth_decryption_gcm_err; 959 960 if (EVP_DecryptFinal_ex(ctx, dst, &len) <= 0) 961 goto process_auth_decryption_gcm_final_err; 962 963 return 0; 964 965 process_auth_decryption_gcm_err: 966 OPENSSL_LOG_ERR("Process openssl auth description gcm failed"); 967 return -EINVAL; 968 969 process_auth_decryption_gcm_final_err: 970 return -EFAULT; 971 } 972 973 /** Process standard openssl auth algorithms */ 974 static int 975 process_openssl_auth(struct rte_mbuf *mbuf_src, uint8_t *dst, int offset, 976 __rte_unused uint8_t *iv, __rte_unused EVP_PKEY * pkey, 977 int srclen, EVP_MD_CTX *ctx, const EVP_MD *algo) 978 { 979 size_t dstlen; 980 struct rte_mbuf *m; 981 int l, n = srclen; 982 uint8_t *src; 983 984 for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m); 985 m = m->next) 986 offset -= rte_pktmbuf_data_len(m); 987 988 if (m == 0) 989 goto process_auth_err; 990 991 if (EVP_DigestInit_ex(ctx, algo, NULL) <= 0) 992 goto process_auth_err; 993 994 src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset); 995 996 l = rte_pktmbuf_data_len(m) - offset; 997 if (srclen <= l) { 998 if (EVP_DigestUpdate(ctx, (char *)src, srclen) <= 0) 999 goto process_auth_err; 1000 goto process_auth_final; 1001 } 1002 1003 if (EVP_DigestUpdate(ctx, (char *)src, l) <= 0) 1004 goto process_auth_err; 1005 1006 n -= l; 1007 1008 for (m = m->next; (m != NULL) && (n > 0); m = m->next) { 1009 src = rte_pktmbuf_mtod(m, uint8_t *); 1010 l = rte_pktmbuf_data_len(m) < n ? rte_pktmbuf_data_len(m) : n; 1011 if (EVP_DigestUpdate(ctx, (char *)src, l) <= 0) 1012 goto process_auth_err; 1013 n -= l; 1014 } 1015 1016 process_auth_final: 1017 if (EVP_DigestFinal_ex(ctx, dst, (unsigned int *)&dstlen) <= 0) 1018 goto process_auth_err; 1019 return 0; 1020 1021 process_auth_err: 1022 OPENSSL_LOG_ERR("Process openssl auth failed"); 1023 return -EINVAL; 1024 } 1025 1026 /** Process standard openssl auth algorithms with hmac */ 1027 static int 1028 process_openssl_auth_hmac(struct rte_mbuf *mbuf_src, uint8_t *dst, int offset, 1029 int srclen, HMAC_CTX *ctx) 1030 { 1031 unsigned int dstlen; 1032 struct rte_mbuf *m; 1033 int l, n = srclen; 1034 uint8_t *src; 1035 1036 for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m); 1037 m = m->next) 1038 offset -= rte_pktmbuf_data_len(m); 1039 1040 if (m == 0) 1041 goto process_auth_err; 1042 1043 src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset); 1044 1045 l = rte_pktmbuf_data_len(m) - offset; 1046 if (srclen <= l) { 1047 if (HMAC_Update(ctx, (unsigned char *)src, srclen) != 1) 1048 goto process_auth_err; 1049 goto process_auth_final; 1050 } 1051 1052 if (HMAC_Update(ctx, (unsigned char *)src, l) != 1) 1053 goto process_auth_err; 1054 1055 n -= l; 1056 1057 for (m = m->next; (m != NULL) && (n > 0); m = m->next) { 1058 src = rte_pktmbuf_mtod(m, uint8_t *); 1059 l = rte_pktmbuf_data_len(m) < n ? rte_pktmbuf_data_len(m) : n; 1060 if (HMAC_Update(ctx, (unsigned char *)src, l) != 1) 1061 goto process_auth_err; 1062 n -= l; 1063 } 1064 1065 process_auth_final: 1066 if (HMAC_Final(ctx, dst, &dstlen) != 1) 1067 goto process_auth_err; 1068 1069 if (unlikely(HMAC_Init_ex(ctx, NULL, 0, NULL, NULL) != 1)) 1070 goto process_auth_err; 1071 1072 return 0; 1073 1074 process_auth_err: 1075 OPENSSL_LOG_ERR("Process openssl auth failed"); 1076 return -EINVAL; 1077 } 1078 1079 /*----------------------------------------------------------------------------*/ 1080 1081 /** Process auth/cipher combined operation */ 1082 static void 1083 process_openssl_combined_op 1084 (struct rte_crypto_op *op, struct openssl_session *sess, 1085 struct rte_mbuf *mbuf_src, struct rte_mbuf *mbuf_dst) 1086 { 1087 /* cipher */ 1088 uint8_t *dst = NULL, *iv, *tag, *aad; 1089 int srclen, ivlen, aadlen, status = -1; 1090 uint32_t offset; 1091 1092 /* 1093 * Segmented destination buffer is not supported for 1094 * encryption/decryption 1095 */ 1096 if (!rte_pktmbuf_is_contiguous(mbuf_dst)) { 1097 op->status = RTE_CRYPTO_OP_STATUS_ERROR; 1098 return; 1099 } 1100 1101 iv = rte_crypto_op_ctod_offset(op, uint8_t *, 1102 sess->iv.offset); 1103 ivlen = sess->iv.length; 1104 if (sess->auth.algo == RTE_CRYPTO_AUTH_AES_GMAC) { 1105 srclen = 0; 1106 offset = op->sym->auth.data.offset; 1107 aadlen = op->sym->auth.data.length; 1108 aad = rte_pktmbuf_mtod_offset(mbuf_src, uint8_t *, 1109 op->sym->auth.data.offset); 1110 tag = op->sym->auth.digest.data; 1111 if (tag == NULL) 1112 tag = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *, 1113 offset + aadlen); 1114 } else { 1115 srclen = op->sym->aead.data.length; 1116 dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *, 1117 op->sym->aead.data.offset); 1118 offset = op->sym->aead.data.offset; 1119 aad = op->sym->aead.aad.data; 1120 aadlen = sess->auth.aad_length; 1121 tag = op->sym->aead.digest.data; 1122 if (tag == NULL) 1123 tag = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *, 1124 offset + srclen); 1125 } 1126 1127 if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT) 1128 status = process_openssl_auth_encryption_gcm( 1129 mbuf_src, offset, srclen, 1130 aad, aadlen, iv, ivlen, sess->cipher.key.data, 1131 dst, tag, sess->cipher.ctx, 1132 sess->cipher.evp_algo); 1133 else 1134 status = process_openssl_auth_decryption_gcm( 1135 mbuf_src, offset, srclen, 1136 aad, aadlen, iv, ivlen, sess->cipher.key.data, 1137 dst, tag, sess->cipher.ctx, 1138 sess->cipher.evp_algo); 1139 1140 if (status != 0) { 1141 if (status == (-EFAULT) && 1142 sess->auth.operation == 1143 RTE_CRYPTO_AUTH_OP_VERIFY) 1144 op->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED; 1145 else 1146 op->status = RTE_CRYPTO_OP_STATUS_ERROR; 1147 } 1148 } 1149 1150 /** Process cipher operation */ 1151 static void 1152 process_openssl_cipher_op 1153 (struct rte_crypto_op *op, struct openssl_session *sess, 1154 struct rte_mbuf *mbuf_src, struct rte_mbuf *mbuf_dst) 1155 { 1156 uint8_t *dst, *iv; 1157 int srclen, status; 1158 1159 /* 1160 * Segmented destination buffer is not supported for 1161 * encryption/decryption 1162 */ 1163 if (!rte_pktmbuf_is_contiguous(mbuf_dst)) { 1164 op->status = RTE_CRYPTO_OP_STATUS_ERROR; 1165 return; 1166 } 1167 1168 srclen = op->sym->cipher.data.length; 1169 dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *, 1170 op->sym->cipher.data.offset); 1171 1172 iv = rte_crypto_op_ctod_offset(op, uint8_t *, 1173 sess->iv.offset); 1174 1175 if (sess->cipher.mode == OPENSSL_CIPHER_LIB) 1176 if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT) 1177 status = process_openssl_cipher_encrypt(mbuf_src, dst, 1178 op->sym->cipher.data.offset, iv, 1179 srclen, sess->cipher.ctx); 1180 else 1181 status = process_openssl_cipher_decrypt(mbuf_src, dst, 1182 op->sym->cipher.data.offset, iv, 1183 srclen, sess->cipher.ctx); 1184 else 1185 status = process_openssl_cipher_des3ctr(mbuf_src, dst, 1186 op->sym->cipher.data.offset, iv, 1187 sess->cipher.key.data, srclen, 1188 sess->cipher.ctx); 1189 1190 if (status != 0) 1191 op->status = RTE_CRYPTO_OP_STATUS_ERROR; 1192 } 1193 1194 /** Process cipher operation */ 1195 static void 1196 process_openssl_docsis_bpi_op(struct rte_crypto_op *op, 1197 struct openssl_session *sess, struct rte_mbuf *mbuf_src, 1198 struct rte_mbuf *mbuf_dst) 1199 { 1200 uint8_t *src, *dst, *iv; 1201 uint8_t block_size, last_block_len; 1202 int srclen, status = 0; 1203 1204 srclen = op->sym->cipher.data.length; 1205 src = rte_pktmbuf_mtod_offset(mbuf_src, uint8_t *, 1206 op->sym->cipher.data.offset); 1207 dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *, 1208 op->sym->cipher.data.offset); 1209 1210 iv = rte_crypto_op_ctod_offset(op, uint8_t *, 1211 sess->iv.offset); 1212 1213 block_size = DES_BLOCK_SIZE; 1214 1215 last_block_len = srclen % block_size; 1216 if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT) { 1217 /* Encrypt only with ECB mode XOR IV */ 1218 if (srclen < block_size) { 1219 status = process_openssl_cipher_bpi_encrypt(src, dst, 1220 iv, srclen, 1221 sess->cipher.bpi_ctx); 1222 } else { 1223 srclen -= last_block_len; 1224 /* Encrypt with the block aligned stream with CBC mode */ 1225 status = process_openssl_cipher_encrypt(mbuf_src, dst, 1226 op->sym->cipher.data.offset, iv, 1227 srclen, sess->cipher.ctx); 1228 if (last_block_len) { 1229 /* Point at last block */ 1230 dst += srclen; 1231 /* 1232 * IV is the last encrypted block from 1233 * the previous operation 1234 */ 1235 iv = dst - block_size; 1236 src += srclen; 1237 srclen = last_block_len; 1238 /* Encrypt the last frame with ECB mode */ 1239 status |= process_openssl_cipher_bpi_encrypt(src, 1240 dst, iv, 1241 srclen, sess->cipher.bpi_ctx); 1242 } 1243 } 1244 } else { 1245 /* Decrypt only with ECB mode (encrypt, as it is same operation) */ 1246 if (srclen < block_size) { 1247 status = process_openssl_cipher_bpi_encrypt(src, dst, 1248 iv, 1249 srclen, 1250 sess->cipher.bpi_ctx); 1251 } else { 1252 if (last_block_len) { 1253 /* Point at last block */ 1254 dst += srclen - last_block_len; 1255 src += srclen - last_block_len; 1256 /* 1257 * IV is the last full block 1258 */ 1259 iv = src - block_size; 1260 /* 1261 * Decrypt the last frame with ECB mode 1262 * (encrypt, as it is the same operation) 1263 */ 1264 status = process_openssl_cipher_bpi_encrypt(src, 1265 dst, iv, 1266 last_block_len, sess->cipher.bpi_ctx); 1267 /* Prepare parameters for CBC mode op */ 1268 iv = rte_crypto_op_ctod_offset(op, uint8_t *, 1269 sess->iv.offset); 1270 dst += last_block_len - srclen; 1271 srclen -= last_block_len; 1272 } 1273 1274 /* Decrypt with CBC mode */ 1275 status |= process_openssl_cipher_decrypt(mbuf_src, dst, 1276 op->sym->cipher.data.offset, iv, 1277 srclen, sess->cipher.ctx); 1278 } 1279 } 1280 1281 if (status != 0) 1282 op->status = RTE_CRYPTO_OP_STATUS_ERROR; 1283 } 1284 1285 /** Process auth operation */ 1286 static void 1287 process_openssl_auth_op(struct openssl_qp *qp, struct rte_crypto_op *op, 1288 struct openssl_session *sess, struct rte_mbuf *mbuf_src, 1289 struct rte_mbuf *mbuf_dst) 1290 { 1291 uint8_t *dst; 1292 int srclen, status; 1293 1294 srclen = op->sym->auth.data.length; 1295 1296 if (sess->auth.operation == RTE_CRYPTO_AUTH_OP_VERIFY) 1297 dst = qp->temp_digest; 1298 else { 1299 dst = op->sym->auth.digest.data; 1300 if (dst == NULL) 1301 dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *, 1302 op->sym->auth.data.offset + 1303 op->sym->auth.data.length); 1304 } 1305 1306 switch (sess->auth.mode) { 1307 case OPENSSL_AUTH_AS_AUTH: 1308 status = process_openssl_auth(mbuf_src, dst, 1309 op->sym->auth.data.offset, NULL, NULL, srclen, 1310 sess->auth.auth.ctx, sess->auth.auth.evp_algo); 1311 break; 1312 case OPENSSL_AUTH_AS_HMAC: 1313 status = process_openssl_auth_hmac(mbuf_src, dst, 1314 op->sym->auth.data.offset, srclen, 1315 sess->auth.hmac.ctx); 1316 break; 1317 default: 1318 status = -1; 1319 break; 1320 } 1321 1322 if (sess->auth.operation == RTE_CRYPTO_AUTH_OP_VERIFY) { 1323 if (memcmp(dst, op->sym->auth.digest.data, 1324 sess->auth.digest_length) != 0) { 1325 op->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED; 1326 } 1327 } 1328 1329 if (status != 0) 1330 op->status = RTE_CRYPTO_OP_STATUS_ERROR; 1331 } 1332 1333 /** Process crypto operation for mbuf */ 1334 static int 1335 process_op(struct openssl_qp *qp, struct rte_crypto_op *op, 1336 struct openssl_session *sess) 1337 { 1338 struct rte_mbuf *msrc, *mdst; 1339 int retval; 1340 1341 msrc = op->sym->m_src; 1342 mdst = op->sym->m_dst ? op->sym->m_dst : op->sym->m_src; 1343 1344 op->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED; 1345 1346 switch (sess->chain_order) { 1347 case OPENSSL_CHAIN_ONLY_CIPHER: 1348 process_openssl_cipher_op(op, sess, msrc, mdst); 1349 break; 1350 case OPENSSL_CHAIN_ONLY_AUTH: 1351 process_openssl_auth_op(qp, op, sess, msrc, mdst); 1352 break; 1353 case OPENSSL_CHAIN_CIPHER_AUTH: 1354 process_openssl_cipher_op(op, sess, msrc, mdst); 1355 process_openssl_auth_op(qp, op, sess, mdst, mdst); 1356 break; 1357 case OPENSSL_CHAIN_AUTH_CIPHER: 1358 process_openssl_auth_op(qp, op, sess, msrc, mdst); 1359 process_openssl_cipher_op(op, sess, msrc, mdst); 1360 break; 1361 case OPENSSL_CHAIN_COMBINED: 1362 process_openssl_combined_op(op, sess, msrc, mdst); 1363 break; 1364 case OPENSSL_CHAIN_CIPHER_BPI: 1365 process_openssl_docsis_bpi_op(op, sess, msrc, mdst); 1366 break; 1367 default: 1368 op->status = RTE_CRYPTO_OP_STATUS_ERROR; 1369 break; 1370 } 1371 1372 /* Free session if a session-less crypto op */ 1373 if (op->sess_type == RTE_CRYPTO_OP_SESSIONLESS) { 1374 openssl_reset_session(sess); 1375 memset(sess, 0, sizeof(struct openssl_session)); 1376 memset(op->sym->session, 0, 1377 rte_cryptodev_get_header_session_size()); 1378 rte_mempool_put(qp->sess_mp, sess); 1379 rte_mempool_put(qp->sess_mp, op->sym->session); 1380 op->sym->session = NULL; 1381 } 1382 1383 if (op->status == RTE_CRYPTO_OP_STATUS_NOT_PROCESSED) 1384 op->status = RTE_CRYPTO_OP_STATUS_SUCCESS; 1385 1386 if (op->status != RTE_CRYPTO_OP_STATUS_ERROR) 1387 retval = rte_ring_enqueue(qp->processed_ops, (void *)op); 1388 else 1389 retval = -1; 1390 1391 return retval; 1392 } 1393 1394 /* 1395 *------------------------------------------------------------------------------ 1396 * PMD Framework 1397 *------------------------------------------------------------------------------ 1398 */ 1399 1400 /** Enqueue burst */ 1401 static uint16_t 1402 openssl_pmd_enqueue_burst(void *queue_pair, struct rte_crypto_op **ops, 1403 uint16_t nb_ops) 1404 { 1405 struct openssl_session *sess; 1406 struct openssl_qp *qp = queue_pair; 1407 int i, retval; 1408 1409 for (i = 0; i < nb_ops; i++) { 1410 sess = get_session(qp, ops[i]); 1411 if (unlikely(sess == NULL)) 1412 goto enqueue_err; 1413 1414 retval = process_op(qp, ops[i], sess); 1415 if (unlikely(retval < 0)) 1416 goto enqueue_err; 1417 } 1418 1419 qp->stats.enqueued_count += i; 1420 return i; 1421 1422 enqueue_err: 1423 qp->stats.enqueue_err_count++; 1424 return i; 1425 } 1426 1427 /** Dequeue burst */ 1428 static uint16_t 1429 openssl_pmd_dequeue_burst(void *queue_pair, struct rte_crypto_op **ops, 1430 uint16_t nb_ops) 1431 { 1432 struct openssl_qp *qp = queue_pair; 1433 1434 unsigned int nb_dequeued = 0; 1435 1436 nb_dequeued = rte_ring_dequeue_burst(qp->processed_ops, 1437 (void **)ops, nb_ops, NULL); 1438 qp->stats.dequeued_count += nb_dequeued; 1439 1440 return nb_dequeued; 1441 } 1442 1443 /** Create OPENSSL crypto device */ 1444 static int 1445 cryptodev_openssl_create(const char *name, 1446 struct rte_vdev_device *vdev, 1447 struct rte_crypto_vdev_init_params *init_params) 1448 { 1449 struct rte_cryptodev *dev; 1450 struct openssl_private *internals; 1451 1452 if (init_params->name[0] == '\0') 1453 snprintf(init_params->name, sizeof(init_params->name), 1454 "%s", name); 1455 1456 dev = rte_cryptodev_vdev_pmd_init(init_params->name, 1457 sizeof(struct openssl_private), 1458 init_params->socket_id, 1459 vdev); 1460 if (dev == NULL) { 1461 OPENSSL_LOG_ERR("failed to create cryptodev vdev"); 1462 goto init_error; 1463 } 1464 1465 dev->driver_id = cryptodev_driver_id; 1466 dev->dev_ops = rte_openssl_pmd_ops; 1467 1468 /* register rx/tx burst functions for data path */ 1469 dev->dequeue_burst = openssl_pmd_dequeue_burst; 1470 dev->enqueue_burst = openssl_pmd_enqueue_burst; 1471 1472 dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO | 1473 RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING | 1474 RTE_CRYPTODEV_FF_CPU_AESNI | 1475 RTE_CRYPTODEV_FF_MBUF_SCATTER_GATHER; 1476 1477 /* Set vector instructions mode supported */ 1478 internals = dev->data->dev_private; 1479 1480 internals->max_nb_qpairs = init_params->max_nb_queue_pairs; 1481 internals->max_nb_sessions = init_params->max_nb_sessions; 1482 1483 return 0; 1484 1485 init_error: 1486 OPENSSL_LOG_ERR("driver %s: cryptodev_openssl_create failed", 1487 init_params->name); 1488 1489 cryptodev_openssl_remove(vdev); 1490 return -EFAULT; 1491 } 1492 1493 /** Initialise OPENSSL crypto device */ 1494 static int 1495 cryptodev_openssl_probe(struct rte_vdev_device *vdev) 1496 { 1497 struct rte_crypto_vdev_init_params init_params = { 1498 RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_QUEUE_PAIRS, 1499 RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_SESSIONS, 1500 rte_socket_id(), 1501 {0} 1502 }; 1503 const char *name; 1504 const char *input_args; 1505 1506 name = rte_vdev_device_name(vdev); 1507 if (name == NULL) 1508 return -EINVAL; 1509 input_args = rte_vdev_device_args(vdev); 1510 1511 rte_cryptodev_vdev_parse_init_params(&init_params, input_args); 1512 1513 RTE_LOG(INFO, PMD, "Initialising %s on NUMA node %d\n", name, 1514 init_params.socket_id); 1515 if (init_params.name[0] != '\0') 1516 RTE_LOG(INFO, PMD, " User defined name = %s\n", 1517 init_params.name); 1518 RTE_LOG(INFO, PMD, " Max number of queue pairs = %d\n", 1519 init_params.max_nb_queue_pairs); 1520 RTE_LOG(INFO, PMD, " Max number of sessions = %d\n", 1521 init_params.max_nb_sessions); 1522 1523 return cryptodev_openssl_create(name, vdev, &init_params); 1524 } 1525 1526 /** Uninitialise OPENSSL crypto device */ 1527 static int 1528 cryptodev_openssl_remove(struct rte_vdev_device *vdev) 1529 { 1530 const char *name; 1531 1532 name = rte_vdev_device_name(vdev); 1533 if (name == NULL) 1534 return -EINVAL; 1535 1536 RTE_LOG(INFO, PMD, 1537 "Closing OPENSSL crypto device %s on numa socket %u\n", 1538 name, rte_socket_id()); 1539 1540 return 0; 1541 } 1542 1543 static struct rte_vdev_driver cryptodev_openssl_pmd_drv = { 1544 .probe = cryptodev_openssl_probe, 1545 .remove = cryptodev_openssl_remove 1546 }; 1547 1548 static struct cryptodev_driver openssl_crypto_drv; 1549 1550 RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_OPENSSL_PMD, 1551 cryptodev_openssl_pmd_drv); 1552 RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_OPENSSL_PMD, 1553 "max_nb_queue_pairs=<int> " 1554 "max_nb_sessions=<int> " 1555 "socket_id=<int>"); 1556 RTE_PMD_REGISTER_CRYPTO_DRIVER(openssl_crypto_drv, cryptodev_openssl_pmd_drv, 1557 cryptodev_driver_id); 1558