drivers/crypto/openssl/rte_openssl_pmd_ops.c

   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 <string.h>
  34
  35 #include <rte_common.h>
  36 #include <rte_malloc.h>
  37 #include <rte_cryptodev_pmd.h>
  38
  39 #include "rte_openssl_pmd_private.h"
  40
  41
  42 static const struct rte_cryptodev_capabilities openssl_pmd_capabilities[] = {
  43         {       /* MD5 HMAC */
  44                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
  45                 {.sym = {
  46                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
  47                         {.auth = {
  48                                 .algo = RTE_CRYPTO_AUTH_MD5_HMAC,
  49                                 .block_size = 64,
  50                                 .key_size = {
  51                                         .min = 1,
  52                                         .max = 64,
  53                                         .increment = 1
  54                                 },
  55                                 .digest_size = {
  56                                         .min = 16,
  57                                         .max = 16,
  58                                         .increment = 0
  59                                 },
  60                                 .iv_size = { 0 }
  61                         }, }
  62                 }, }
  63         },
  64         {       /* MD5 */
  65                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
  66                 {.sym = {
  67                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
  68                         {.auth = {
  69                                 .algo = RTE_CRYPTO_AUTH_MD5,
  70                                 .block_size = 64,
  71                                 .key_size = {
  72                                         .min = 0,
  73                                         .max = 0,
  74                                         .increment = 0
  75                                 },
  76                                 .digest_size = {
  77                                         .min = 16,
  78                                         .max = 16,
  79                                         .increment = 0
  80                                 },
  81                                 .iv_size = { 0 }
  82                         }, }
  83                 }, }
  84         },
  85         {       /* SHA1 HMAC */
  86                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
  87                 {.sym = {
  88                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
  89                         {.auth = {
  90                                 .algo = RTE_CRYPTO_AUTH_SHA1_HMAC,
  91                                 .block_size = 64,
  92                                 .key_size = {
  93                                         .min = 1,
  94                                         .max = 64,
  95                                         .increment = 1
  96                                 },
  97                                 .digest_size = {
  98                                         .min = 20,
  99                                         .max = 20,
 100                                         .increment = 0
 101                                 },
 102                                 .iv_size = { 0 }
 103                         }, }
 104                 }, }
 105         },
 106         {       /* SHA1 */
 107                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 108                 {.sym = {
 109                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 110                         {.auth = {
 111                                 .algo = RTE_CRYPTO_AUTH_SHA1,
 112                                 .block_size = 64,
 113                                 .key_size = {
 114                                         .min = 0,
 115                                         .max = 0,
 116                                         .increment = 0
 117                                 },
 118                                 .digest_size = {
 119                                         .min = 20,
 120                                         .max = 20,
 121                                         .increment = 0
 122                                 },
 123                                 .iv_size = { 0 }
 124                         }, }
 125                 }, }
 126         },
 127         {       /* SHA224 HMAC */
 128                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 129                 {.sym = {
 130                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 131                         {.auth = {
 132                                 .algo = RTE_CRYPTO_AUTH_SHA224_HMAC,
 133                                 .block_size = 64,
 134                                 .key_size = {
 135                                         .min = 1,
 136                                         .max = 64,
 137                                         .increment = 1
 138                                 },
 139                                 .digest_size = {
 140                                         .min = 28,
 141                                         .max = 28,
 142                                         .increment = 0
 143                                 },
 144                                 .iv_size = { 0 }
 145                         }, }
 146                 }, }
 147         },
 148         {       /* SHA224 */
 149                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 150                 {.sym = {
 151                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 152                         {.auth = {
 153                                 .algo = RTE_CRYPTO_AUTH_SHA224,
 154                                 .block_size = 64,
 155                                 .key_size = {
 156                                         .min = 0,
 157                                         .max = 0,
 158                                         .increment = 0
 159                                 },
 160                                 .digest_size = {
 161                                         .min = 28,
 162                                         .max = 28,
 163                                         .increment = 0
 164                                 },
 165                                 .iv_size = { 0 }
 166                         }, }
 167                 }, }
 168         },
 169         {       /* SHA256 HMAC */
 170                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 171                 {.sym = {
 172                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 173                         {.auth = {
 174                                 .algo = RTE_CRYPTO_AUTH_SHA256_HMAC,
 175                                 .block_size = 64,
 176                                 .key_size = {
 177                                         .min = 1,
 178                                         .max = 64,
 179                                         .increment = 1
 180                                 },
 181                                 .digest_size = {
 182                                         .min = 32,
 183                                         .max = 32,
 184                                         .increment = 0
 185                                 },
 186                                 .iv_size = { 0 }
 187                         }, }
 188                 }, }
 189         },
 190         {       /* SHA256 */
 191                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 192                 {.sym = {
 193                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 194                         {.auth = {
 195                                 .algo = RTE_CRYPTO_AUTH_SHA256,
 196                                 .block_size = 64,
 197                                 .key_size = {
 198                                         .min = 0,
 199                                         .max = 0,
 200                                         .increment = 0
 201                                 },
 202                                 .digest_size = {
 203                                         .min = 32,
 204                                         .max = 32,
 205                                         .increment = 0
 206                                 },
 207                                 .iv_size = { 0 }
 208                         }, }
 209                 }, }
 210         },
 211         {       /* SHA384 HMAC */
 212                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 213                 {.sym = {
 214                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 215                         {.auth = {
 216                                 .algo = RTE_CRYPTO_AUTH_SHA384_HMAC,
 217                                 .block_size = 128,
 218                                 .key_size = {
 219                                         .min = 1,
 220                                         .max = 128,
 221                                         .increment = 1
 222                                 },
 223                                 .digest_size = {
 224                                         .min = 48,
 225                                         .max = 48,
 226                                         .increment = 0
 227                                 },
 228                                 .iv_size = { 0 }
 229                         }, }
 230                 }, }
 231         },
 232         {       /* SHA384 */
 233                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 234                 {.sym = {
 235                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 236                         {.auth = {
 237                                 .algo = RTE_CRYPTO_AUTH_SHA384,
 238                                 .block_size = 128,
 239                                 .key_size = {
 240                                         .min = 0,
 241                                         .max = 0,
 242                                         .increment = 0
 243                                 },
 244                                 .digest_size = {
 245                                         .min = 48,
 246                                         .max = 48,
 247                                         .increment = 0
 248                                 },
 249                                 .iv_size = { 0 }
 250                         }, }
 251                 }, }
 252         },
 253         {       /* SHA512 HMAC */
 254                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 255                 {.sym = {
 256                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 257                         {.auth = {
 258                                 .algo = RTE_CRYPTO_AUTH_SHA512_HMAC,
 259                                 .block_size = 128,
 260                                 .key_size = {
 261                                         .min = 1,
 262                                         .max = 128,
 263                                         .increment = 1
 264                                 },
 265                                 .digest_size = {
 266                                         .min = 64,
 267                                         .max = 64,
 268                                         .increment = 0
 269                                 },
 270                                 .iv_size = { 0 }
 271                         }, }
 272                 }, }
 273         },
 274         {       /* SHA512  */
 275                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 276                 {.sym = {
 277                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 278                         {.auth = {
 279                                 .algo = RTE_CRYPTO_AUTH_SHA512,
 280                                 .block_size = 128,
 281                                 .key_size = {
 282                                         .min = 0,
 283                                         .max = 0,
 284                                         .increment = 0
 285                                 },
 286                                 .digest_size = {
 287                                         .min = 64,
 288                                         .max = 64,
 289                                         .increment = 0
 290                                 },
 291                                 .iv_size = { 0 }
 292                         }, }
 293                 }, }
 294         },
 295         {       /* AES CBC */
 296                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 297                 {.sym = {
 298                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 299                         {.cipher = {
 300                                 .algo = RTE_CRYPTO_CIPHER_AES_CBC,
 301                                 .block_size = 16,
 302                                 .key_size = {
 303                                         .min = 16,
 304                                         .max = 32,
 305                                         .increment = 8
 306                                 },
 307                                 .iv_size = {
 308                                         .min = 16,
 309                                         .max = 16,
 310                                         .increment = 0
 311                                 }
 312                         }, }
 313                 }, }
 314         },
 315         {       /* AES CTR */
 316                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 317                 {.sym = {
 318                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 319                         {.cipher = {
 320                                 .algo = RTE_CRYPTO_CIPHER_AES_CTR,
 321                                 .block_size = 16,
 322                                 .key_size = {
 323                                         .min = 16,
 324                                         .max = 32,
 325                                         .increment = 8
 326                                 },
 327                                 .iv_size = {
 328                                         .min = 16,
 329                                         .max = 16,
 330                                         .increment = 0
 331                                 }
 332                         }, }
 333                 }, }
 334         },
 335         {       /* AES GCM */
 336                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 337                 {.sym = {
 338                         .xform_type = RTE_CRYPTO_SYM_XFORM_AEAD,
 339                         {.aead = {
 340                                 .algo = RTE_CRYPTO_AEAD_AES_GCM,
 341                                 .block_size = 16,
 342                                 .key_size = {
 343                                         .min = 16,
 344                                         .max = 32,
 345                                         .increment = 8
 346                                 },
 347                                 .digest_size = {
 348                                         .min = 16,
 349                                         .max = 16,
 350                                         .increment = 0
 351                                 },
 352                                 .aad_size = {
 353                                         .min = 0,
 354                                         .max = 65535,
 355                                         .increment = 1
 356                                 },
 357                                 .iv_size = {
 358                                         .min = 12,
 359                                         .max = 16,
 360                                         .increment = 4
 361                                 },
 362                         }, }
 363                 }, }
 364         },
 365         {       /* AES GMAC (AUTH) */
 366                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 367                 {.sym = {
 368                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 369                         {.auth = {
 370                                 .algo = RTE_CRYPTO_AUTH_AES_GMAC,
 371                                 .block_size = 16,
 372                                 .key_size = {
 373                                         .min = 16,
 374                                         .max = 32,
 375                                         .increment = 8
 376                                 },
 377                                 .digest_size = {
 378                                         .min = 16,
 379                                         .max = 16,
 380                                         .increment = 0
 381                                 },
 382                                 .iv_size = {
 383                                         .min = 12,
 384                                         .max = 16,
 385                                         .increment = 4
 386                                 }
 387                         }, }
 388                 }, }
 389         },
 390         {       /* 3DES CBC */
 391                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 392                 {.sym = {
 393                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 394                         {.cipher = {
 395                                 .algo = RTE_CRYPTO_CIPHER_3DES_CBC,
 396                                 .block_size = 8,
 397                                 .key_size = {
 398                                         .min = 16,
 399                                         .max = 24,
 400                                         .increment = 8
 401                                 },
 402                                 .iv_size = {
 403                                         .min = 8,
 404                                         .max = 8,
 405                                         .increment = 0
 406                                 }
 407                         }, }
 408                 }, }
 409         },
 410         {       /* 3DES CTR */
 411                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 412                 {.sym = {
 413                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 414                         {.cipher = {
 415                                 .algo = RTE_CRYPTO_CIPHER_3DES_CTR,
 416                                 .block_size = 8,
 417                                 .key_size = {
 418                                         .min = 16,
 419                                         .max = 24,
 420                                         .increment = 8
 421                                 },
 422                                 .iv_size = {
 423                                         .min = 8,
 424                                         .max = 8,
 425                                         .increment = 0
 426                                 }
 427                         }, }
 428                 }, }
 429         },
 430         {       /* DES DOCSIS BPI */
 431                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 432                 {.sym = {
 433                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 434                         {.cipher = {
 435                                 .algo = RTE_CRYPTO_CIPHER_DES_DOCSISBPI,
 436                                 .block_size = 8,
 437                                 .key_size = {
 438                                         .min = 8,
 439                                         .max = 8,
 440                                         .increment = 0
 441                                 },
 442                                 .iv_size = {
 443                                         .min = 8,
 444                                         .max = 8,
 445                                         .increment = 0
 446                                 }
 447                         }, }
 448                 }, }
 449         },
 450
 451         RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST()
 452 };
 453
 454
 455 /** Configure device */
 456 static int
 457 openssl_pmd_config(__rte_unused struct rte_cryptodev *dev,
 458                 __rte_unused struct rte_cryptodev_config *config)
 459 {
 460         return 0;
 461 }
 462
 463 /** Start device */
 464 static int
 465 openssl_pmd_start(__rte_unused struct rte_cryptodev *dev)
 466 {
 467         return 0;
 468 }
 469
 470 /** Stop device */
 471 static void
 472 openssl_pmd_stop(__rte_unused struct rte_cryptodev *dev)
 473 {
 474 }
 475
 476 /** Close device */
 477 static int
 478 openssl_pmd_close(__rte_unused struct rte_cryptodev *dev)
 479 {
 480         return 0;
 481 }
 482
 483
 484 /** Get device statistics */
 485 static void
 486 openssl_pmd_stats_get(struct rte_cryptodev *dev,
 487                 struct rte_cryptodev_stats *stats)
 488 {
 489         int qp_id;
 490
 491         for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
 492                 struct openssl_qp *qp = dev->data->queue_pairs[qp_id];
 493
 494                 stats->enqueued_count += qp->stats.enqueued_count;
 495                 stats->dequeued_count += qp->stats.dequeued_count;
 496
 497                 stats->enqueue_err_count += qp->stats.enqueue_err_count;
 498                 stats->dequeue_err_count += qp->stats.dequeue_err_count;
 499         }
 500 }
 501
 502 /** Reset device statistics */
 503 static void
 504 openssl_pmd_stats_reset(struct rte_cryptodev *dev)
 505 {
 506         int qp_id;
 507
 508         for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
 509                 struct openssl_qp *qp = dev->data->queue_pairs[qp_id];
 510
 511                 memset(&qp->stats, 0, sizeof(qp->stats));
 512         }
 513 }
 514
 515
 516 /** Get device info */
 517 static void
 518 openssl_pmd_info_get(struct rte_cryptodev *dev,
 519                 struct rte_cryptodev_info *dev_info)
 520 {
 521         struct openssl_private *internals = dev->data->dev_private;
 522
 523         if (dev_info != NULL) {
 524                 dev_info->driver_id = dev->driver_id;
 525                 dev_info->feature_flags = dev->feature_flags;
 526                 dev_info->capabilities = openssl_pmd_capabilities;
 527                 dev_info->max_nb_queue_pairs = internals->max_nb_qpairs;
 528                 dev_info->sym.max_nb_sessions = internals->max_nb_sessions;
 529         }
 530 }
 531
 532 /** Release queue pair */
 533 static int
 534 openssl_pmd_qp_release(struct rte_cryptodev *dev, uint16_t qp_id)
 535 {
 536         if (dev->data->queue_pairs[qp_id] != NULL) {
 537                 rte_free(dev->data->queue_pairs[qp_id]);
 538                 dev->data->queue_pairs[qp_id] = NULL;
 539         }
 540         return 0;
 541 }
 542
 543 /** set a unique name for the queue pair based on it's name, dev_id and qp_id */
 544 static int
 545 openssl_pmd_qp_set_unique_name(struct rte_cryptodev *dev,
 546                 struct openssl_qp *qp)
 547 {
 548         unsigned int n = snprintf(qp->name, sizeof(qp->name),
 549                         "openssl_pmd_%u_qp_%u",
 550                         dev->data->dev_id, qp->id);
 551
 552         if (n > sizeof(qp->name))
 553                 return -1;
 554
 555         return 0;
 556 }
 557
 558
 559 /** Create a ring to place processed operations on */
 560 static struct rte_ring *
 561 openssl_pmd_qp_create_processed_ops_ring(struct openssl_qp *qp,
 562                 unsigned int ring_size, int socket_id)
 563 {
 564         struct rte_ring *r;
 565
 566         r = rte_ring_lookup(qp->name);
 567         if (r) {
 568                 if (rte_ring_get_size(r) >= ring_size) {
 569                         OPENSSL_LOG_INFO(
 570                                 "Reusing existing ring %s for processed ops",
 571                                  qp->name);
 572                         return r;
 573                 }
 574
 575                 OPENSSL_LOG_ERR(
 576                         "Unable to reuse existing ring %s for processed ops",
 577                          qp->name);
 578                 return NULL;
 579         }
 580
 581         return rte_ring_create(qp->name, ring_size, socket_id,
 582                         RING_F_SP_ENQ | RING_F_SC_DEQ);
 583 }
 584
 585
 586 /** Setup a queue pair */
 587 static int
 588 openssl_pmd_qp_setup(struct rte_cryptodev *dev, uint16_t qp_id,
 589                 const struct rte_cryptodev_qp_conf *qp_conf,
 590                 int socket_id, struct rte_mempool *session_pool)
 591 {
 592         struct openssl_qp *qp = NULL;
 593
 594         /* Free memory prior to re-allocation if needed. */
 595         if (dev->data->queue_pairs[qp_id] != NULL)
 596                 openssl_pmd_qp_release(dev, qp_id);
 597
 598         /* Allocate the queue pair data structure. */
 599         qp = rte_zmalloc_socket("OPENSSL PMD Queue Pair", sizeof(*qp),
 600                                         RTE_CACHE_LINE_SIZE, socket_id);
 601         if (qp == NULL)
 602                 return -ENOMEM;
 603
 604         qp->id = qp_id;
 605         dev->data->queue_pairs[qp_id] = qp;
 606
 607         if (openssl_pmd_qp_set_unique_name(dev, qp))
 608                 goto qp_setup_cleanup;
 609
 610         qp->processed_ops = openssl_pmd_qp_create_processed_ops_ring(qp,
 611                         qp_conf->nb_descriptors, socket_id);
 612         if (qp->processed_ops == NULL)
 613                 goto qp_setup_cleanup;
 614
 615         qp->sess_mp = session_pool;
 616
 617         memset(&qp->stats, 0, sizeof(qp->stats));
 618
 619         return 0;
 620
 621 qp_setup_cleanup:
 622         if (qp)
 623                 rte_free(qp);
 624
 625         return -1;
 626 }
 627
 628 /** Start queue pair */
 629 static int
 630 openssl_pmd_qp_start(__rte_unused struct rte_cryptodev *dev,
 631                 __rte_unused uint16_t queue_pair_id)
 632 {
 633         return -ENOTSUP;
 634 }
 635
 636 /** Stop queue pair */
 637 static int
 638 openssl_pmd_qp_stop(__rte_unused struct rte_cryptodev *dev,
 639                 __rte_unused uint16_t queue_pair_id)
 640 {
 641         return -ENOTSUP;
 642 }
 643
 644 /** Return the number of allocated queue pairs */
 645 static uint32_t
 646 openssl_pmd_qp_count(struct rte_cryptodev *dev)
 647 {
 648         return dev->data->nb_queue_pairs;
 649 }
 650
 651 /** Returns the size of the session structure */
 652 static unsigned
 653 openssl_pmd_session_get_size(struct rte_cryptodev *dev __rte_unused)
 654 {
 655         return sizeof(struct openssl_session);
 656 }
 657
 658 /** Configure the session from a crypto xform chain */
 659 static int
 660 openssl_pmd_session_configure(struct rte_cryptodev *dev __rte_unused,
 661                 struct rte_crypto_sym_xform *xform,
 662                 struct rte_cryptodev_sym_session *sess,
 663                 struct rte_mempool *mempool)
 664 {
 665         void *sess_private_data;
 666         int ret;
 667
 668         if (unlikely(sess == NULL)) {
 669                 OPENSSL_LOG_ERR("invalid session struct");
 670                 return -EINVAL;
 671         }
 672
 673         if (rte_mempool_get(mempool, &sess_private_data)) {
 674                 CDEV_LOG_ERR(
 675                         "Couldn't get object from session mempool");
 676                 return -ENOMEM;
 677         }
 678
 679         ret = openssl_set_session_parameters(sess_private_data, xform);
 680         if (ret != 0) {
 681                 OPENSSL_LOG_ERR("failed configure session parameters");
 682
 683                 /* Return session to mempool */
 684                 rte_mempool_put(mempool, sess_private_data);
 685                 return ret;
 686         }
 687
 688         set_session_private_data(sess, dev->driver_id,
 689                         sess_private_data);
 690
 691         return 0;
 692 }
 693
 694
 695 /** Clear the memory of session so it doesn't leave key material behind */
 696 static void
 697 openssl_pmd_session_clear(struct rte_cryptodev *dev,
 698                 struct rte_cryptodev_sym_session *sess)
 699 {
 700         uint8_t index = dev->driver_id;
 701         void *sess_priv = get_session_private_data(sess, index);
 702
 703         /* Zero out the whole structure */
 704         if (sess_priv) {
 705                 openssl_reset_session(sess_priv);
 706                 memset(sess_priv, 0, sizeof(struct openssl_session));
 707                 struct rte_mempool *sess_mp = rte_mempool_from_obj(sess_priv);
 708                 set_session_private_data(sess, index, NULL);
 709                 rte_mempool_put(sess_mp, sess_priv);
 710         }
 711 }
 712
 713 struct rte_cryptodev_ops openssl_pmd_ops = {
 714                 .dev_configure          = openssl_pmd_config,
 715                 .dev_start              = openssl_pmd_start,
 716                 .dev_stop               = openssl_pmd_stop,
 717                 .dev_close              = openssl_pmd_close,
 718
 719                 .stats_get              = openssl_pmd_stats_get,
 720                 .stats_reset            = openssl_pmd_stats_reset,
 721
 722                 .dev_infos_get          = openssl_pmd_info_get,
 723
 724                 .queue_pair_setup       = openssl_pmd_qp_setup,
 725                 .queue_pair_release     = openssl_pmd_qp_release,
 726                 .queue_pair_start       = openssl_pmd_qp_start,
 727                 .queue_pair_stop        = openssl_pmd_qp_stop,
 728                 .queue_pair_count       = openssl_pmd_qp_count,
 729
 730                 .session_get_size       = openssl_pmd_session_get_size,
 731                 .session_configure      = openssl_pmd_session_configure,
 732                 .session_clear          = openssl_pmd_session_clear
 733 };
 734
 735 struct rte_cryptodev_ops *rte_openssl_pmd_ops = &openssl_pmd_ops;