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