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 -EINVAL; 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 -EINVAL; 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 -EINVAL; 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; 475 476 sess->chain_order = openssl_get_chain_order(xform); 477 switch (sess->chain_order) { 478 case OPENSSL_CHAIN_ONLY_CIPHER: 479 cipher_xform = xform; 480 break; 481 case OPENSSL_CHAIN_ONLY_AUTH: 482 auth_xform = xform; 483 break; 484 case OPENSSL_CHAIN_CIPHER_AUTH: 485 cipher_xform = xform; 486 auth_xform = xform->next; 487 break; 488 case OPENSSL_CHAIN_AUTH_CIPHER: 489 auth_xform = xform; 490 cipher_xform = xform->next; 491 break; 492 case OPENSSL_CHAIN_COMBINED: 493 aead_xform = xform; 494 break; 495 default: 496 return -EINVAL; 497 } 498 499 /* Default IV length = 0 */ 500 sess->iv.length = 0; 501 502 /* cipher_xform must be check before auth_xform */ 503 if (cipher_xform) { 504 if (openssl_set_session_cipher_parameters( 505 sess, cipher_xform)) { 506 OPENSSL_LOG_ERR( 507 "Invalid/unsupported cipher parameters"); 508 return -EINVAL; 509 } 510 } 511 512 if (auth_xform) { 513 if (openssl_set_session_auth_parameters(sess, auth_xform)) { 514 OPENSSL_LOG_ERR( 515 "Invalid/unsupported auth parameters"); 516 return -EINVAL; 517 } 518 } 519 520 if (aead_xform) { 521 if (openssl_set_session_aead_parameters(sess, aead_xform)) { 522 OPENSSL_LOG_ERR( 523 "Invalid/unsupported AEAD parameters"); 524 return -EINVAL; 525 } 526 } 527 528 return 0; 529 } 530 531 /** Reset private session parameters */ 532 void 533 openssl_reset_session(struct openssl_session *sess) 534 { 535 EVP_CIPHER_CTX_free(sess->cipher.ctx); 536 537 if (sess->chain_order == OPENSSL_CHAIN_CIPHER_BPI) 538 EVP_CIPHER_CTX_free(sess->cipher.bpi_ctx); 539 540 switch (sess->auth.mode) { 541 case OPENSSL_AUTH_AS_AUTH: 542 EVP_MD_CTX_destroy(sess->auth.auth.ctx); 543 break; 544 case OPENSSL_AUTH_AS_HMAC: 545 EVP_PKEY_free(sess->auth.hmac.pkey); 546 EVP_MD_CTX_destroy(sess->auth.hmac.ctx); 547 break; 548 default: 549 break; 550 } 551 } 552 553 /** Provide session for operation */ 554 static struct openssl_session * 555 get_session(struct openssl_qp *qp, struct rte_crypto_op *op) 556 { 557 struct openssl_session *sess = NULL; 558 559 if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION) { 560 /* get existing session */ 561 if (likely(op->sym->session != NULL)) 562 sess = (struct openssl_session *) 563 get_session_private_data( 564 op->sym->session, 565 cryptodev_driver_id); 566 } else { 567 /* provide internal session */ 568 void *_sess = NULL; 569 void *_sess_private_data = NULL; 570 571 if (rte_mempool_get(qp->sess_mp, (void **)&_sess)) 572 return NULL; 573 574 if (rte_mempool_get(qp->sess_mp, (void **)&_sess_private_data)) 575 return NULL; 576 577 sess = (struct openssl_session *)_sess_private_data; 578 579 if (unlikely(openssl_set_session_parameters(sess, 580 op->sym->xform) != 0)) { 581 rte_mempool_put(qp->sess_mp, _sess); 582 rte_mempool_put(qp->sess_mp, _sess_private_data); 583 sess = NULL; 584 } 585 op->sym->session = (struct rte_cryptodev_sym_session *)_sess; 586 set_session_private_data(op->sym->session, cryptodev_driver_id, 587 _sess_private_data); 588 } 589 590 if (sess == NULL) 591 op->status = RTE_CRYPTO_OP_STATUS_INVALID_SESSION; 592 593 return sess; 594 } 595 596 /* 597 *------------------------------------------------------------------------------ 598 * Process Operations 599 *------------------------------------------------------------------------------ 600 */ 601 static inline int 602 process_openssl_encryption_update(struct rte_mbuf *mbuf_src, int offset, 603 uint8_t **dst, int srclen, EVP_CIPHER_CTX *ctx) 604 { 605 struct rte_mbuf *m; 606 int dstlen; 607 int l, n = srclen; 608 uint8_t *src; 609 610 for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m); 611 m = m->next) 612 offset -= rte_pktmbuf_data_len(m); 613 614 if (m == 0) 615 return -1; 616 617 src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset); 618 619 l = rte_pktmbuf_data_len(m) - offset; 620 if (srclen <= l) { 621 if (EVP_EncryptUpdate(ctx, *dst, &dstlen, src, srclen) <= 0) 622 return -1; 623 *dst += l; 624 return 0; 625 } 626 627 if (EVP_EncryptUpdate(ctx, *dst, &dstlen, src, l) <= 0) 628 return -1; 629 630 *dst += dstlen; 631 n -= l; 632 633 for (m = m->next; (m != NULL) && (n > 0); m = m->next) { 634 src = rte_pktmbuf_mtod(m, uint8_t *); 635 l = rte_pktmbuf_data_len(m) < n ? rte_pktmbuf_data_len(m) : n; 636 if (EVP_EncryptUpdate(ctx, *dst, &dstlen, src, l) <= 0) 637 return -1; 638 *dst += dstlen; 639 n -= l; 640 } 641 642 return 0; 643 } 644 645 static inline int 646 process_openssl_decryption_update(struct rte_mbuf *mbuf_src, int offset, 647 uint8_t **dst, int srclen, EVP_CIPHER_CTX *ctx) 648 { 649 struct rte_mbuf *m; 650 int dstlen; 651 int l, n = srclen; 652 uint8_t *src; 653 654 for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m); 655 m = m->next) 656 offset -= rte_pktmbuf_data_len(m); 657 658 if (m == 0) 659 return -1; 660 661 src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset); 662 663 l = rte_pktmbuf_data_len(m) - offset; 664 if (srclen <= l) { 665 if (EVP_DecryptUpdate(ctx, *dst, &dstlen, src, srclen) <= 0) 666 return -1; 667 *dst += l; 668 return 0; 669 } 670 671 if (EVP_DecryptUpdate(ctx, *dst, &dstlen, src, l) <= 0) 672 return -1; 673 674 *dst += dstlen; 675 n -= l; 676 677 for (m = m->next; (m != NULL) && (n > 0); m = m->next) { 678 src = rte_pktmbuf_mtod(m, uint8_t *); 679 l = rte_pktmbuf_data_len(m) < n ? rte_pktmbuf_data_len(m) : n; 680 if (EVP_DecryptUpdate(ctx, *dst, &dstlen, src, l) <= 0) 681 return -1; 682 *dst += dstlen; 683 n -= l; 684 } 685 686 return 0; 687 } 688 689 /** Process standard openssl cipher encryption */ 690 static int 691 process_openssl_cipher_encrypt(struct rte_mbuf *mbuf_src, uint8_t *dst, 692 int offset, uint8_t *iv, uint8_t *key, int srclen, 693 EVP_CIPHER_CTX *ctx, const EVP_CIPHER *algo) 694 { 695 int totlen; 696 697 if (EVP_EncryptInit_ex(ctx, algo, NULL, key, iv) <= 0) 698 goto process_cipher_encrypt_err; 699 700 EVP_CIPHER_CTX_set_padding(ctx, 0); 701 702 if (process_openssl_encryption_update(mbuf_src, offset, &dst, 703 srclen, ctx)) 704 goto process_cipher_encrypt_err; 705 706 if (EVP_EncryptFinal_ex(ctx, dst, &totlen) <= 0) 707 goto process_cipher_encrypt_err; 708 709 return 0; 710 711 process_cipher_encrypt_err: 712 OPENSSL_LOG_ERR("Process openssl cipher encrypt failed"); 713 return -EINVAL; 714 } 715 716 /** Process standard openssl cipher encryption */ 717 static int 718 process_openssl_cipher_bpi_encrypt(uint8_t *src, uint8_t *dst, 719 uint8_t *iv, int srclen, 720 EVP_CIPHER_CTX *ctx) 721 { 722 uint8_t i; 723 uint8_t encrypted_iv[DES_BLOCK_SIZE]; 724 int encrypted_ivlen; 725 726 if (EVP_EncryptUpdate(ctx, encrypted_iv, &encrypted_ivlen, 727 iv, DES_BLOCK_SIZE) <= 0) 728 goto process_cipher_encrypt_err; 729 730 for (i = 0; i < srclen; i++) 731 *(dst + i) = *(src + i) ^ (encrypted_iv[i]); 732 733 return 0; 734 735 process_cipher_encrypt_err: 736 OPENSSL_LOG_ERR("Process openssl cipher bpi encrypt failed"); 737 return -EINVAL; 738 } 739 /** Process standard openssl cipher decryption */ 740 static int 741 process_openssl_cipher_decrypt(struct rte_mbuf *mbuf_src, uint8_t *dst, 742 int offset, uint8_t *iv, uint8_t *key, int srclen, 743 EVP_CIPHER_CTX *ctx, const EVP_CIPHER *algo) 744 { 745 int totlen; 746 747 if (EVP_DecryptInit_ex(ctx, algo, NULL, key, iv) <= 0) 748 goto process_cipher_decrypt_err; 749 750 EVP_CIPHER_CTX_set_padding(ctx, 0); 751 752 if (process_openssl_decryption_update(mbuf_src, offset, &dst, 753 srclen, ctx)) 754 goto process_cipher_decrypt_err; 755 756 if (EVP_DecryptFinal_ex(ctx, dst, &totlen) <= 0) 757 goto process_cipher_decrypt_err; 758 return 0; 759 760 process_cipher_decrypt_err: 761 OPENSSL_LOG_ERR("Process openssl cipher decrypt failed"); 762 return -EINVAL; 763 } 764 765 /** Process cipher des 3 ctr encryption, decryption algorithm */ 766 static int 767 process_openssl_cipher_des3ctr(struct rte_mbuf *mbuf_src, uint8_t *dst, 768 int offset, uint8_t *iv, uint8_t *key, int srclen, 769 EVP_CIPHER_CTX *ctx) 770 { 771 uint8_t ebuf[8], ctr[8]; 772 int unused, n; 773 struct rte_mbuf *m; 774 uint8_t *src; 775 int l; 776 777 for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m); 778 m = m->next) 779 offset -= rte_pktmbuf_data_len(m); 780 781 if (m == 0) 782 goto process_cipher_des3ctr_err; 783 784 src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset); 785 l = rte_pktmbuf_data_len(m) - offset; 786 787 /* We use 3DES encryption also for decryption. 788 * IV is not important for 3DES ecb 789 */ 790 if (EVP_EncryptInit_ex(ctx, EVP_des_ede3_ecb(), NULL, key, NULL) <= 0) 791 goto process_cipher_des3ctr_err; 792 793 memcpy(ctr, iv, 8); 794 795 for (n = 0; n < srclen; n++) { 796 if (n % 8 == 0) { 797 if (EVP_EncryptUpdate(ctx, 798 (unsigned char *)&ebuf, &unused, 799 (const unsigned char *)&ctr, 8) <= 0) 800 goto process_cipher_des3ctr_err; 801 ctr_inc(ctr); 802 } 803 dst[n] = *(src++) ^ ebuf[n % 8]; 804 805 l--; 806 if (!l) { 807 m = m->next; 808 if (m) { 809 src = rte_pktmbuf_mtod(m, uint8_t *); 810 l = rte_pktmbuf_data_len(m); 811 } 812 } 813 } 814 815 return 0; 816 817 process_cipher_des3ctr_err: 818 OPENSSL_LOG_ERR("Process openssl cipher des 3 ede ctr failed"); 819 return -EINVAL; 820 } 821 822 /** Process auth/encription aes-gcm algorithm */ 823 static int 824 process_openssl_auth_encryption_gcm(struct rte_mbuf *mbuf_src, int offset, 825 int srclen, uint8_t *aad, int aadlen, uint8_t *iv, int ivlen, 826 uint8_t *key, uint8_t *dst, uint8_t *tag, 827 EVP_CIPHER_CTX *ctx, const EVP_CIPHER *algo) 828 { 829 int len = 0, unused = 0; 830 uint8_t empty[] = {}; 831 832 if (EVP_EncryptInit_ex(ctx, algo, NULL, NULL, NULL) <= 0) 833 goto process_auth_encryption_gcm_err; 834 835 if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_IVLEN, ivlen, NULL) <= 0) 836 goto process_auth_encryption_gcm_err; 837 838 if (EVP_EncryptInit_ex(ctx, NULL, NULL, key, iv) <= 0) 839 goto process_auth_encryption_gcm_err; 840 841 if (aadlen > 0) 842 if (EVP_EncryptUpdate(ctx, NULL, &len, aad, aadlen) <= 0) 843 goto process_auth_encryption_gcm_err; 844 845 if (srclen > 0) 846 if (process_openssl_encryption_update(mbuf_src, offset, &dst, 847 srclen, ctx)) 848 goto process_auth_encryption_gcm_err; 849 850 /* Workaround open ssl bug in version less then 1.0.1f */ 851 if (EVP_EncryptUpdate(ctx, empty, &unused, empty, 0) <= 0) 852 goto process_auth_encryption_gcm_err; 853 854 if (EVP_EncryptFinal_ex(ctx, dst, &len) <= 0) 855 goto process_auth_encryption_gcm_err; 856 857 if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_GET_TAG, 16, tag) <= 0) 858 goto process_auth_encryption_gcm_err; 859 860 return 0; 861 862 process_auth_encryption_gcm_err: 863 OPENSSL_LOG_ERR("Process openssl auth encryption gcm failed"); 864 return -EINVAL; 865 } 866 867 static int 868 process_openssl_auth_decryption_gcm(struct rte_mbuf *mbuf_src, int offset, 869 int srclen, uint8_t *aad, int aadlen, uint8_t *iv, int ivlen, 870 uint8_t *key, uint8_t *dst, uint8_t *tag, EVP_CIPHER_CTX *ctx, 871 const EVP_CIPHER *algo) 872 { 873 int len = 0, unused = 0; 874 uint8_t empty[] = {}; 875 876 if (EVP_DecryptInit_ex(ctx, algo, NULL, NULL, NULL) <= 0) 877 goto process_auth_decryption_gcm_err; 878 879 if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_IVLEN, ivlen, NULL) <= 0) 880 goto process_auth_decryption_gcm_err; 881 882 if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_TAG, 16, tag) <= 0) 883 goto process_auth_decryption_gcm_err; 884 885 if (EVP_DecryptInit_ex(ctx, NULL, NULL, key, iv) <= 0) 886 goto process_auth_decryption_gcm_err; 887 888 if (aadlen > 0) 889 if (EVP_DecryptUpdate(ctx, NULL, &len, aad, aadlen) <= 0) 890 goto process_auth_decryption_gcm_err; 891 892 if (srclen > 0) 893 if (process_openssl_decryption_update(mbuf_src, offset, &dst, 894 srclen, ctx)) 895 goto process_auth_decryption_gcm_err; 896 897 /* Workaround open ssl bug in version less then 1.0.1f */ 898 if (EVP_DecryptUpdate(ctx, empty, &unused, empty, 0) <= 0) 899 goto process_auth_decryption_gcm_err; 900 901 if (EVP_DecryptFinal_ex(ctx, dst, &len) <= 0) 902 goto process_auth_decryption_gcm_final_err; 903 904 return 0; 905 906 process_auth_decryption_gcm_err: 907 OPENSSL_LOG_ERR("Process openssl auth description gcm failed"); 908 return -EINVAL; 909 910 process_auth_decryption_gcm_final_err: 911 return -EFAULT; 912 } 913 914 /** Process standard openssl auth algorithms */ 915 static int 916 process_openssl_auth(struct rte_mbuf *mbuf_src, uint8_t *dst, int offset, 917 __rte_unused uint8_t *iv, __rte_unused EVP_PKEY * pkey, 918 int srclen, EVP_MD_CTX *ctx, const EVP_MD *algo) 919 { 920 size_t dstlen; 921 struct rte_mbuf *m; 922 int l, n = srclen; 923 uint8_t *src; 924 925 for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m); 926 m = m->next) 927 offset -= rte_pktmbuf_data_len(m); 928 929 if (m == 0) 930 goto process_auth_err; 931 932 if (EVP_DigestInit_ex(ctx, algo, NULL) <= 0) 933 goto process_auth_err; 934 935 src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset); 936 937 l = rte_pktmbuf_data_len(m) - offset; 938 if (srclen <= l) { 939 if (EVP_DigestUpdate(ctx, (char *)src, srclen) <= 0) 940 goto process_auth_err; 941 goto process_auth_final; 942 } 943 944 if (EVP_DigestUpdate(ctx, (char *)src, l) <= 0) 945 goto process_auth_err; 946 947 n -= l; 948 949 for (m = m->next; (m != NULL) && (n > 0); m = m->next) { 950 src = rte_pktmbuf_mtod(m, uint8_t *); 951 l = rte_pktmbuf_data_len(m) < n ? rte_pktmbuf_data_len(m) : n; 952 if (EVP_DigestUpdate(ctx, (char *)src, l) <= 0) 953 goto process_auth_err; 954 n -= l; 955 } 956 957 process_auth_final: 958 if (EVP_DigestFinal_ex(ctx, dst, (unsigned int *)&dstlen) <= 0) 959 goto process_auth_err; 960 return 0; 961 962 process_auth_err: 963 OPENSSL_LOG_ERR("Process openssl auth failed"); 964 return -EINVAL; 965 } 966 967 /** Process standard openssl auth algorithms with hmac */ 968 static int 969 process_openssl_auth_hmac(struct rte_mbuf *mbuf_src, uint8_t *dst, int offset, 970 __rte_unused uint8_t *iv, EVP_PKEY *pkey, 971 int srclen, EVP_MD_CTX *ctx, const EVP_MD *algo) 972 { 973 size_t dstlen; 974 struct rte_mbuf *m; 975 int l, n = srclen; 976 uint8_t *src; 977 978 for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m); 979 m = m->next) 980 offset -= rte_pktmbuf_data_len(m); 981 982 if (m == 0) 983 goto process_auth_err; 984 985 if (EVP_DigestSignInit(ctx, NULL, algo, NULL, pkey) <= 0) 986 goto process_auth_err; 987 988 src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset); 989 990 l = rte_pktmbuf_data_len(m) - offset; 991 if (srclen <= l) { 992 if (EVP_DigestSignUpdate(ctx, (char *)src, srclen) <= 0) 993 goto process_auth_err; 994 goto process_auth_final; 995 } 996 997 if (EVP_DigestSignUpdate(ctx, (char *)src, l) <= 0) 998 goto process_auth_err; 999 1000 n -= l; 1001 1002 for (m = m->next; (m != NULL) && (n > 0); m = m->next) { 1003 src = rte_pktmbuf_mtod(m, uint8_t *); 1004 l = rte_pktmbuf_data_len(m) < n ? rte_pktmbuf_data_len(m) : n; 1005 if (EVP_DigestSignUpdate(ctx, (char *)src, l) <= 0) 1006 goto process_auth_err; 1007 n -= l; 1008 } 1009 1010 process_auth_final: 1011 if (EVP_DigestSignFinal(ctx, dst, &dstlen) <= 0) 1012 goto process_auth_err; 1013 1014 return 0; 1015 1016 process_auth_err: 1017 OPENSSL_LOG_ERR("Process openssl auth failed"); 1018 return -EINVAL; 1019 } 1020 1021 /*----------------------------------------------------------------------------*/ 1022 1023 /** Process auth/cipher combined operation */ 1024 static void 1025 process_openssl_combined_op 1026 (struct rte_crypto_op *op, struct openssl_session *sess, 1027 struct rte_mbuf *mbuf_src, struct rte_mbuf *mbuf_dst) 1028 { 1029 /* cipher */ 1030 uint8_t *dst = NULL, *iv, *tag, *aad; 1031 int srclen, ivlen, aadlen, status = -1; 1032 uint32_t offset; 1033 1034 /* 1035 * Segmented destination buffer is not supported for 1036 * encryption/decryption 1037 */ 1038 if (!rte_pktmbuf_is_contiguous(mbuf_dst)) { 1039 op->status = RTE_CRYPTO_OP_STATUS_ERROR; 1040 return; 1041 } 1042 1043 iv = rte_crypto_op_ctod_offset(op, uint8_t *, 1044 sess->iv.offset); 1045 ivlen = sess->iv.length; 1046 if (sess->auth.algo == RTE_CRYPTO_AUTH_AES_GMAC) { 1047 srclen = 0; 1048 offset = op->sym->auth.data.offset; 1049 aadlen = op->sym->auth.data.length; 1050 aad = rte_pktmbuf_mtod_offset(mbuf_src, uint8_t *, 1051 op->sym->auth.data.offset); 1052 tag = op->sym->auth.digest.data; 1053 if (tag == NULL) 1054 tag = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *, 1055 offset + aadlen); 1056 } else { 1057 srclen = op->sym->aead.data.length; 1058 dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *, 1059 op->sym->aead.data.offset); 1060 offset = op->sym->aead.data.offset; 1061 aad = op->sym->aead.aad.data; 1062 aadlen = sess->auth.aad_length; 1063 tag = op->sym->aead.digest.data; 1064 if (tag == NULL) 1065 tag = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *, 1066 offset + srclen); 1067 } 1068 1069 if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT) 1070 status = process_openssl_auth_encryption_gcm( 1071 mbuf_src, offset, srclen, 1072 aad, aadlen, iv, ivlen, sess->cipher.key.data, 1073 dst, tag, sess->cipher.ctx, 1074 sess->cipher.evp_algo); 1075 else 1076 status = process_openssl_auth_decryption_gcm( 1077 mbuf_src, offset, srclen, 1078 aad, aadlen, iv, ivlen, sess->cipher.key.data, 1079 dst, tag, sess->cipher.ctx, 1080 sess->cipher.evp_algo); 1081 1082 if (status != 0) { 1083 if (status == (-EFAULT) && 1084 sess->auth.operation == 1085 RTE_CRYPTO_AUTH_OP_VERIFY) 1086 op->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED; 1087 else 1088 op->status = RTE_CRYPTO_OP_STATUS_ERROR; 1089 } 1090 } 1091 1092 /** Process cipher operation */ 1093 static void 1094 process_openssl_cipher_op 1095 (struct rte_crypto_op *op, struct openssl_session *sess, 1096 struct rte_mbuf *mbuf_src, struct rte_mbuf *mbuf_dst) 1097 { 1098 uint8_t *dst, *iv; 1099 int srclen, status; 1100 1101 /* 1102 * Segmented destination buffer is not supported for 1103 * encryption/decryption 1104 */ 1105 if (!rte_pktmbuf_is_contiguous(mbuf_dst)) { 1106 op->status = RTE_CRYPTO_OP_STATUS_ERROR; 1107 return; 1108 } 1109 1110 srclen = op->sym->cipher.data.length; 1111 dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *, 1112 op->sym->cipher.data.offset); 1113 1114 iv = rte_crypto_op_ctod_offset(op, uint8_t *, 1115 sess->iv.offset); 1116 1117 if (sess->cipher.mode == OPENSSL_CIPHER_LIB) 1118 if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT) 1119 status = process_openssl_cipher_encrypt(mbuf_src, dst, 1120 op->sym->cipher.data.offset, iv, 1121 sess->cipher.key.data, srclen, 1122 sess->cipher.ctx, 1123 sess->cipher.evp_algo); 1124 else 1125 status = process_openssl_cipher_decrypt(mbuf_src, dst, 1126 op->sym->cipher.data.offset, iv, 1127 sess->cipher.key.data, srclen, 1128 sess->cipher.ctx, 1129 sess->cipher.evp_algo); 1130 else 1131 status = process_openssl_cipher_des3ctr(mbuf_src, dst, 1132 op->sym->cipher.data.offset, iv, 1133 sess->cipher.key.data, srclen, 1134 sess->cipher.ctx); 1135 1136 if (status != 0) 1137 op->status = RTE_CRYPTO_OP_STATUS_ERROR; 1138 } 1139 1140 /** Process cipher operation */ 1141 static void 1142 process_openssl_docsis_bpi_op(struct rte_crypto_op *op, 1143 struct openssl_session *sess, struct rte_mbuf *mbuf_src, 1144 struct rte_mbuf *mbuf_dst) 1145 { 1146 uint8_t *src, *dst, *iv; 1147 uint8_t block_size, last_block_len; 1148 int srclen, status = 0; 1149 1150 srclen = op->sym->cipher.data.length; 1151 src = rte_pktmbuf_mtod_offset(mbuf_src, uint8_t *, 1152 op->sym->cipher.data.offset); 1153 dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *, 1154 op->sym->cipher.data.offset); 1155 1156 iv = rte_crypto_op_ctod_offset(op, uint8_t *, 1157 sess->iv.offset); 1158 1159 block_size = DES_BLOCK_SIZE; 1160 1161 last_block_len = srclen % block_size; 1162 if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT) { 1163 /* Encrypt only with ECB mode XOR IV */ 1164 if (srclen < block_size) { 1165 status = process_openssl_cipher_bpi_encrypt(src, dst, 1166 iv, srclen, 1167 sess->cipher.bpi_ctx); 1168 } else { 1169 srclen -= last_block_len; 1170 /* Encrypt with the block aligned stream with CBC mode */ 1171 status = process_openssl_cipher_encrypt(mbuf_src, dst, 1172 op->sym->cipher.data.offset, iv, 1173 sess->cipher.key.data, srclen, 1174 sess->cipher.ctx, sess->cipher.evp_algo); 1175 if (last_block_len) { 1176 /* Point at last block */ 1177 dst += srclen; 1178 /* 1179 * IV is the last encrypted block from 1180 * the previous operation 1181 */ 1182 iv = dst - block_size; 1183 src += srclen; 1184 srclen = last_block_len; 1185 /* Encrypt the last frame with ECB mode */ 1186 status |= process_openssl_cipher_bpi_encrypt(src, 1187 dst, iv, 1188 srclen, sess->cipher.bpi_ctx); 1189 } 1190 } 1191 } else { 1192 /* Decrypt only with ECB mode (encrypt, as it is same operation) */ 1193 if (srclen < block_size) { 1194 status = process_openssl_cipher_bpi_encrypt(src, dst, 1195 iv, 1196 srclen, 1197 sess->cipher.bpi_ctx); 1198 } else { 1199 if (last_block_len) { 1200 /* Point at last block */ 1201 dst += srclen - last_block_len; 1202 src += srclen - last_block_len; 1203 /* 1204 * IV is the last full block 1205 */ 1206 iv = src - block_size; 1207 /* 1208 * Decrypt the last frame with ECB mode 1209 * (encrypt, as it is the same operation) 1210 */ 1211 status = process_openssl_cipher_bpi_encrypt(src, 1212 dst, iv, 1213 last_block_len, sess->cipher.bpi_ctx); 1214 /* Prepare parameters for CBC mode op */ 1215 iv = rte_crypto_op_ctod_offset(op, uint8_t *, 1216 sess->iv.offset); 1217 dst += last_block_len - srclen; 1218 srclen -= last_block_len; 1219 } 1220 1221 /* Decrypt with CBC mode */ 1222 status |= process_openssl_cipher_decrypt(mbuf_src, dst, 1223 op->sym->cipher.data.offset, iv, 1224 sess->cipher.key.data, srclen, 1225 sess->cipher.ctx, 1226 sess->cipher.evp_algo); 1227 } 1228 } 1229 1230 if (status != 0) 1231 op->status = RTE_CRYPTO_OP_STATUS_ERROR; 1232 } 1233 1234 /** Process auth operation */ 1235 static void 1236 process_openssl_auth_op 1237 (struct rte_crypto_op *op, struct openssl_session *sess, 1238 struct rte_mbuf *mbuf_src, struct rte_mbuf *mbuf_dst) 1239 { 1240 uint8_t *dst; 1241 int srclen, status; 1242 1243 srclen = op->sym->auth.data.length; 1244 1245 if (sess->auth.operation == RTE_CRYPTO_AUTH_OP_VERIFY) 1246 dst = (uint8_t *)rte_pktmbuf_append(mbuf_src, 1247 sess->auth.digest_length); 1248 else { 1249 dst = op->sym->auth.digest.data; 1250 if (dst == NULL) 1251 dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *, 1252 op->sym->auth.data.offset + 1253 op->sym->auth.data.length); 1254 } 1255 1256 switch (sess->auth.mode) { 1257 case OPENSSL_AUTH_AS_AUTH: 1258 status = process_openssl_auth(mbuf_src, dst, 1259 op->sym->auth.data.offset, NULL, NULL, srclen, 1260 sess->auth.auth.ctx, sess->auth.auth.evp_algo); 1261 break; 1262 case OPENSSL_AUTH_AS_HMAC: 1263 status = process_openssl_auth_hmac(mbuf_src, dst, 1264 op->sym->auth.data.offset, NULL, 1265 sess->auth.hmac.pkey, srclen, 1266 sess->auth.hmac.ctx, sess->auth.hmac.evp_algo); 1267 break; 1268 default: 1269 status = -1; 1270 break; 1271 } 1272 1273 if (sess->auth.operation == RTE_CRYPTO_AUTH_OP_VERIFY) { 1274 if (memcmp(dst, op->sym->auth.digest.data, 1275 sess->auth.digest_length) != 0) { 1276 op->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED; 1277 } 1278 /* Trim area used for digest from mbuf. */ 1279 rte_pktmbuf_trim(mbuf_src, sess->auth.digest_length); 1280 } 1281 1282 if (status != 0) 1283 op->status = RTE_CRYPTO_OP_STATUS_ERROR; 1284 } 1285 1286 /** Process crypto operation for mbuf */ 1287 static int 1288 process_op(const struct openssl_qp *qp, struct rte_crypto_op *op, 1289 struct openssl_session *sess) 1290 { 1291 struct rte_mbuf *msrc, *mdst; 1292 int retval; 1293 1294 msrc = op->sym->m_src; 1295 mdst = op->sym->m_dst ? op->sym->m_dst : op->sym->m_src; 1296 1297 op->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED; 1298 1299 switch (sess->chain_order) { 1300 case OPENSSL_CHAIN_ONLY_CIPHER: 1301 process_openssl_cipher_op(op, sess, msrc, mdst); 1302 break; 1303 case OPENSSL_CHAIN_ONLY_AUTH: 1304 process_openssl_auth_op(op, sess, msrc, mdst); 1305 break; 1306 case OPENSSL_CHAIN_CIPHER_AUTH: 1307 process_openssl_cipher_op(op, sess, msrc, mdst); 1308 process_openssl_auth_op(op, sess, mdst, mdst); 1309 break; 1310 case OPENSSL_CHAIN_AUTH_CIPHER: 1311 process_openssl_auth_op(op, sess, msrc, mdst); 1312 process_openssl_cipher_op(op, sess, msrc, mdst); 1313 break; 1314 case OPENSSL_CHAIN_COMBINED: 1315 process_openssl_combined_op(op, sess, msrc, mdst); 1316 break; 1317 case OPENSSL_CHAIN_CIPHER_BPI: 1318 process_openssl_docsis_bpi_op(op, sess, msrc, mdst); 1319 break; 1320 default: 1321 op->status = RTE_CRYPTO_OP_STATUS_ERROR; 1322 break; 1323 } 1324 1325 /* Free session if a session-less crypto op */ 1326 if (op->sess_type == RTE_CRYPTO_OP_SESSIONLESS) { 1327 openssl_reset_session(sess); 1328 memset(sess, 0, sizeof(struct openssl_session)); 1329 memset(op->sym->session, 0, 1330 rte_cryptodev_get_header_session_size()); 1331 rte_mempool_put(qp->sess_mp, sess); 1332 rte_mempool_put(qp->sess_mp, op->sym->session); 1333 op->sym->session = NULL; 1334 } 1335 1336 if (op->status == RTE_CRYPTO_OP_STATUS_NOT_PROCESSED) 1337 op->status = RTE_CRYPTO_OP_STATUS_SUCCESS; 1338 1339 if (op->status != RTE_CRYPTO_OP_STATUS_ERROR) 1340 retval = rte_ring_enqueue(qp->processed_ops, (void *)op); 1341 else 1342 retval = -1; 1343 1344 return retval; 1345 } 1346 1347 /* 1348 *------------------------------------------------------------------------------ 1349 * PMD Framework 1350 *------------------------------------------------------------------------------ 1351 */ 1352 1353 /** Enqueue burst */ 1354 static uint16_t 1355 openssl_pmd_enqueue_burst(void *queue_pair, struct rte_crypto_op **ops, 1356 uint16_t nb_ops) 1357 { 1358 struct openssl_session *sess; 1359 struct openssl_qp *qp = queue_pair; 1360 int i, retval; 1361 1362 for (i = 0; i < nb_ops; i++) { 1363 sess = get_session(qp, ops[i]); 1364 if (unlikely(sess == NULL)) 1365 goto enqueue_err; 1366 1367 retval = process_op(qp, ops[i], sess); 1368 if (unlikely(retval < 0)) 1369 goto enqueue_err; 1370 } 1371 1372 qp->stats.enqueued_count += i; 1373 return i; 1374 1375 enqueue_err: 1376 qp->stats.enqueue_err_count++; 1377 return i; 1378 } 1379 1380 /** Dequeue burst */ 1381 static uint16_t 1382 openssl_pmd_dequeue_burst(void *queue_pair, struct rte_crypto_op **ops, 1383 uint16_t nb_ops) 1384 { 1385 struct openssl_qp *qp = queue_pair; 1386 1387 unsigned int nb_dequeued = 0; 1388 1389 nb_dequeued = rte_ring_dequeue_burst(qp->processed_ops, 1390 (void **)ops, nb_ops, NULL); 1391 qp->stats.dequeued_count += nb_dequeued; 1392 1393 return nb_dequeued; 1394 } 1395 1396 /** Create OPENSSL crypto device */ 1397 static int 1398 cryptodev_openssl_create(const char *name, 1399 struct rte_vdev_device *vdev, 1400 struct rte_crypto_vdev_init_params *init_params) 1401 { 1402 struct rte_cryptodev *dev; 1403 struct openssl_private *internals; 1404 1405 if (init_params->name[0] == '\0') 1406 snprintf(init_params->name, sizeof(init_params->name), 1407 "%s", name); 1408 1409 dev = rte_cryptodev_vdev_pmd_init(init_params->name, 1410 sizeof(struct openssl_private), 1411 init_params->socket_id, 1412 vdev); 1413 if (dev == NULL) { 1414 OPENSSL_LOG_ERR("failed to create cryptodev vdev"); 1415 goto init_error; 1416 } 1417 1418 dev->driver_id = cryptodev_driver_id; 1419 dev->dev_ops = rte_openssl_pmd_ops; 1420 1421 /* register rx/tx burst functions for data path */ 1422 dev->dequeue_burst = openssl_pmd_dequeue_burst; 1423 dev->enqueue_burst = openssl_pmd_enqueue_burst; 1424 1425 dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO | 1426 RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING | 1427 RTE_CRYPTODEV_FF_CPU_AESNI | 1428 RTE_CRYPTODEV_FF_MBUF_SCATTER_GATHER; 1429 1430 /* Set vector instructions mode supported */ 1431 internals = dev->data->dev_private; 1432 1433 internals->max_nb_qpairs = init_params->max_nb_queue_pairs; 1434 internals->max_nb_sessions = init_params->max_nb_sessions; 1435 1436 return 0; 1437 1438 init_error: 1439 OPENSSL_LOG_ERR("driver %s: cryptodev_openssl_create failed", 1440 init_params->name); 1441 1442 cryptodev_openssl_remove(vdev); 1443 return -EFAULT; 1444 } 1445 1446 /** Initialise OPENSSL crypto device */ 1447 static int 1448 cryptodev_openssl_probe(struct rte_vdev_device *vdev) 1449 { 1450 struct rte_crypto_vdev_init_params init_params = { 1451 RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_QUEUE_PAIRS, 1452 RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_SESSIONS, 1453 rte_socket_id(), 1454 {0} 1455 }; 1456 const char *name; 1457 const char *input_args; 1458 1459 name = rte_vdev_device_name(vdev); 1460 if (name == NULL) 1461 return -EINVAL; 1462 input_args = rte_vdev_device_args(vdev); 1463 1464 rte_cryptodev_vdev_parse_init_params(&init_params, input_args); 1465 1466 RTE_LOG(INFO, PMD, "Initialising %s on NUMA node %d\n", name, 1467 init_params.socket_id); 1468 if (init_params.name[0] != '\0') 1469 RTE_LOG(INFO, PMD, " User defined name = %s\n", 1470 init_params.name); 1471 RTE_LOG(INFO, PMD, " Max number of queue pairs = %d\n", 1472 init_params.max_nb_queue_pairs); 1473 RTE_LOG(INFO, PMD, " Max number of sessions = %d\n", 1474 init_params.max_nb_sessions); 1475 1476 return cryptodev_openssl_create(name, vdev, &init_params); 1477 } 1478 1479 /** Uninitialise OPENSSL crypto device */ 1480 static int 1481 cryptodev_openssl_remove(struct rte_vdev_device *vdev) 1482 { 1483 const char *name; 1484 1485 name = rte_vdev_device_name(vdev); 1486 if (name == NULL) 1487 return -EINVAL; 1488 1489 RTE_LOG(INFO, PMD, 1490 "Closing OPENSSL crypto device %s on numa socket %u\n", 1491 name, rte_socket_id()); 1492 1493 return 0; 1494 } 1495 1496 static struct rte_vdev_driver cryptodev_openssl_pmd_drv = { 1497 .probe = cryptodev_openssl_probe, 1498 .remove = cryptodev_openssl_remove 1499 }; 1500 1501 RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_OPENSSL_PMD, 1502 cryptodev_openssl_pmd_drv); 1503 RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_OPENSSL_PMD, 1504 "max_nb_queue_pairs=<int> " 1505 "max_nb_sessions=<int> " 1506 "socket_id=<int>"); 1507 RTE_PMD_REGISTER_CRYPTO_DRIVER(cryptodev_openssl_pmd_drv, cryptodev_driver_id); 1508