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 = 64,
  52                                         .max = 64,
  53                                         .increment = 0
  54                                 },
  55                                 .digest_size = {
  56                                         .min = 16,
  57                                         .max = 16,
  58                                         .increment = 0
  59                                 },
  60                                 .aad_size = { 0 },
  61                                 .iv_size = { 0 }
  62                         }, }
  63                 }, }
  64         },
  65         {       /* MD5 */
  66                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
  67                 {.sym = {
  68                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
  69                         {.auth = {
  70                                 .algo = RTE_CRYPTO_AUTH_MD5,
  71                                 .block_size = 64,
  72                                 .key_size = {
  73                                         .min = 0,
  74                                         .max = 0,
  75                                         .increment = 0
  76                                 },
  77                                 .digest_size = {
  78                                         .min = 16,
  79                                         .max = 16,
  80                                         .increment = 0
  81                                 },
  82                                 .aad_size = { 0 },
  83                                 .iv_size = { 0 }
  84                         }, }
  85                 }, }
  86         },
  87         {       /* SHA1 HMAC */
  88                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
  89                 {.sym = {
  90                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
  91                         {.auth = {
  92                                 .algo = RTE_CRYPTO_AUTH_SHA1_HMAC,
  93                                 .block_size = 64,
  94                                 .key_size = {
  95                                         .min = 64,
  96                                         .max = 64,
  97                                         .increment = 0
  98                                 },
  99                                 .digest_size = {
 100                                         .min = 20,
 101                                         .max = 20,
 102                                         .increment = 0
 103                                 },
 104                                 .aad_size = { 0 },
 105                                 .iv_size = { 0 }
 106                         }, }
 107                 }, }
 108         },
 109         {       /* SHA1 */
 110                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 111                 {.sym = {
 112                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 113                         {.auth = {
 114                                 .algo = RTE_CRYPTO_AUTH_SHA1,
 115                                 .block_size = 64,
 116                                 .key_size = {
 117                                         .min = 0,
 118                                         .max = 0,
 119                                         .increment = 0
 120                                 },
 121                                 .digest_size = {
 122                                         .min = 20,
 123                                         .max = 20,
 124                                         .increment = 0
 125                                 },
 126                                 .aad_size = { 0 },
 127                                 .iv_size = { 0 }
 128                         }, }
 129                 }, }
 130         },
 131         {       /* SHA224 HMAC */
 132                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 133                 {.sym = {
 134                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 135                         {.auth = {
 136                                 .algo = RTE_CRYPTO_AUTH_SHA224_HMAC,
 137                                 .block_size = 64,
 138                                 .key_size = {
 139                                         .min = 64,
 140                                         .max = 64,
 141                                         .increment = 0
 142                                 },
 143                                 .digest_size = {
 144                                         .min = 28,
 145                                         .max = 28,
 146                                         .increment = 0
 147                                 },
 148                                 .aad_size = { 0 },
 149                                 .iv_size = { 0 }
 150                         }, }
 151                 }, }
 152         },
 153         {       /* SHA224 */
 154                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 155                 {.sym = {
 156                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 157                         {.auth = {
 158                                 .algo = RTE_CRYPTO_AUTH_SHA224,
 159                                 .block_size = 64,
 160                                 .key_size = {
 161                                         .min = 0,
 162                                         .max = 0,
 163                                         .increment = 0
 164                                 },
 165                                 .digest_size = {
 166                                         .min = 28,
 167                                         .max = 28,
 168                                         .increment = 0
 169                                 },
 170                                 .aad_size = { 0 },
 171                                 .iv_size = { 0 }
 172                         }, }
 173                 }, }
 174         },
 175         {       /* SHA256 HMAC */
 176                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 177                 {.sym = {
 178                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 179                         {.auth = {
 180                                 .algo = RTE_CRYPTO_AUTH_SHA256_HMAC,
 181                                 .block_size = 64,
 182                                 .key_size = {
 183                                         .min = 64,
 184                                         .max = 64,
 185                                         .increment = 0
 186                                 },
 187                                 .digest_size = {
 188                                         .min = 32,
 189                                         .max = 32,
 190                                         .increment = 0
 191                                 },
 192                                 .aad_size = { 0 },
 193                                 .iv_size = { 0 }
 194                         }, }
 195                 }, }
 196         },
 197         {       /* SHA256 */
 198                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 199                 {.sym = {
 200                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 201                         {.auth = {
 202                                 .algo = RTE_CRYPTO_AUTH_SHA256,
 203                                 .block_size = 64,
 204                                 .key_size = {
 205                                         .min = 0,
 206                                         .max = 0,
 207                                         .increment = 0
 208                                 },
 209                                 .digest_size = {
 210                                         .min = 32,
 211                                         .max = 32,
 212                                         .increment = 0
 213                                 },
 214                                 .aad_size = { 0 },
 215                                 .iv_size = { 0 }
 216                         }, }
 217                 }, }
 218         },
 219         {       /* SHA384 HMAC */
 220                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 221                 {.sym = {
 222                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 223                         {.auth = {
 224                                 .algo = RTE_CRYPTO_AUTH_SHA384_HMAC,
 225                                 .block_size = 128,
 226                                 .key_size = {
 227                                         .min = 128,
 228                                         .max = 128,
 229                                         .increment = 0
 230                                 },
 231                                 .digest_size = {
 232                                         .min = 48,
 233                                         .max = 48,
 234                                         .increment = 0
 235                                 },
 236                                 .aad_size = { 0 },
 237                                 .iv_size = { 0 }
 238                         }, }
 239                 }, }
 240         },
 241         {       /* SHA384 */
 242                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 243                 {.sym = {
 244                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 245                         {.auth = {
 246                                 .algo = RTE_CRYPTO_AUTH_SHA384,
 247                                 .block_size = 128,
 248                                 .key_size = {
 249                                         .min = 0,
 250                                         .max = 0,
 251                                         .increment = 0
 252                                 },
 253                                 .digest_size = {
 254                                         .min = 48,
 255                                         .max = 48,
 256                                         .increment = 0
 257                                 },
 258                                 .aad_size = { 0 },
 259                                 .iv_size = { 0 }
 260                         }, }
 261                 }, }
 262         },
 263         {       /* SHA512 HMAC */
 264                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 265                 {.sym = {
 266                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 267                         {.auth = {
 268                                 .algo = RTE_CRYPTO_AUTH_SHA512_HMAC,
 269                                 .block_size = 128,
 270                                 .key_size = {
 271                                         .min = 128,
 272                                         .max = 128,
 273                                         .increment = 0
 274                                 },
 275                                 .digest_size = {
 276                                         .min = 64,
 277                                         .max = 64,
 278                                         .increment = 0
 279                                 },
 280                                 .aad_size = { 0 },
 281                                 .iv_size = { 0 }
 282                         }, }
 283                 }, }
 284         },
 285         {       /* SHA512  */
 286                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 287                 {.sym = {
 288                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 289                         {.auth = {
 290                                 .algo = RTE_CRYPTO_AUTH_SHA512,
 291                                 .block_size = 128,
 292                                 .key_size = {
 293                                         .min = 0,
 294                                         .max = 0,
 295                                         .increment = 0
 296                                 },
 297                                 .digest_size = {
 298                                         .min = 64,
 299                                         .max = 64,
 300                                         .increment = 0
 301                                 },
 302                                 .aad_size = { 0 },
 303                                 .iv_size = { 0 }
 304                         }, }
 305                 }, }
 306         },
 307         {       /* AES CBC */
 308                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 309                 {.sym = {
 310                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 311                         {.cipher = {
 312                                 .algo = RTE_CRYPTO_CIPHER_AES_CBC,
 313                                 .block_size = 16,
 314                                 .key_size = {
 315                                         .min = 16,
 316                                         .max = 32,
 317                                         .increment = 8
 318                                 },
 319                                 .iv_size = {
 320                                         .min = 16,
 321                                         .max = 16,
 322                                         .increment = 0
 323                                 }
 324                         }, }
 325                 }, }
 326         },
 327         {       /* AES CTR */
 328                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 329                 {.sym = {
 330                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 331                         {.cipher = {
 332                                 .algo = RTE_CRYPTO_CIPHER_AES_CTR,
 333                                 .block_size = 16,
 334                                 .key_size = {
 335                                         .min = 16,
 336                                         .max = 32,
 337                                         .increment = 8
 338                                 },
 339                                 .iv_size = {
 340                                         .min = 16,
 341                                         .max = 16,
 342                                         .increment = 0
 343                                 }
 344                         }, }
 345                 }, }
 346         },
 347         {       /* AES GCM */
 348                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 349                 {.sym = {
 350                         .xform_type = RTE_CRYPTO_SYM_XFORM_AEAD,
 351                         {.aead = {
 352                                 .algo = RTE_CRYPTO_AEAD_AES_GCM,
 353                                 .block_size = 16,
 354                                 .key_size = {
 355                                         .min = 16,
 356                                         .max = 32,
 357                                         .increment = 8
 358                                 },
 359                                 .digest_size = {
 360                                         .min = 16,
 361                                         .max = 16,
 362                                         .increment = 0
 363                                 },
 364                                 .aad_size = {
 365                                         .min = 0,
 366                                         .max = 65535,
 367                                         .increment = 1
 368                                 },
 369                                 .iv_size = {
 370                                         .min = 12,
 371                                         .max = 16,
 372                                         .increment = 4
 373                                 },
 374                         }, }
 375                 }, }
 376         },
 377         {       /* AES GMAC (AUTH) */
 378                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 379                 {.sym = {
 380                         .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
 381                         {.auth = {
 382                                 .algo = RTE_CRYPTO_AUTH_AES_GMAC,
 383                                 .block_size = 16,
 384                                 .key_size = {
 385                                         .min = 16,
 386                                         .max = 32,
 387                                         .increment = 8
 388                                 },
 389                                 .digest_size = {
 390                                         .min = 16,
 391                                         .max = 16,
 392                                         .increment = 0
 393                                 },
 394                                 .iv_size = {
 395                                         .min = 12,
 396                                         .max = 16,
 397                                         .increment = 4
 398                                 }
 399                         }, }
 400                 }, }
 401         },
 402         {       /* 3DES CBC */
 403                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 404                 {.sym = {
 405                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 406                         {.cipher = {
 407                                 .algo = RTE_CRYPTO_CIPHER_3DES_CBC,
 408                                 .block_size = 8,
 409                                 .key_size = {
 410                                         .min = 16,
 411                                         .max = 24,
 412                                         .increment = 8
 413                                 },
 414                                 .iv_size = {
 415                                         .min = 8,
 416                                         .max = 8,
 417                                         .increment = 0
 418                                 }
 419                         }, }
 420                 }, }
 421         },
 422         {       /* 3DES CTR */
 423                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 424                 {.sym = {
 425                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 426                         {.cipher = {
 427                                 .algo = RTE_CRYPTO_CIPHER_3DES_CTR,
 428                                 .block_size = 8,
 429                                 .key_size = {
 430                                         .min = 16,
 431                                         .max = 24,
 432                                         .increment = 8
 433                                 },
 434                                 .iv_size = {
 435                                         .min = 8,
 436                                         .max = 8,
 437                                         .increment = 0
 438                                 }
 439                         }, }
 440                 }, }
 441         },
 442         {       /* DES DOCSIS BPI */
 443                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 444                 {.sym = {
 445                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 446                         {.cipher = {
 447                                 .algo = RTE_CRYPTO_CIPHER_DES_DOCSISBPI,
 448                                 .block_size = 8,
 449                                 .key_size = {
 450                                         .min = 8,
 451                                         .max = 8,
 452                                         .increment = 0
 453                                 },
 454                                 .iv_size = {
 455                                         .min = 8,
 456                                         .max = 8,
 457                                         .increment = 0
 458                                 }
 459                         }, }
 460                 }, }
 461         },
 462
 463         RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST()
 464 };
 465
 466
 467 /** Configure device */
 468 static int
 469 openssl_pmd_config(__rte_unused struct rte_cryptodev *dev,
 470                 __rte_unused struct rte_cryptodev_config *config)
 471 {
 472         return 0;
 473 }
 474
 475 /** Start device */
 476 static int
 477 openssl_pmd_start(__rte_unused struct rte_cryptodev *dev)
 478 {
 479         return 0;
 480 }
 481
 482 /** Stop device */
 483 static void
 484 openssl_pmd_stop(__rte_unused struct rte_cryptodev *dev)
 485 {
 486 }
 487
 488 /** Close device */
 489 static int
 490 openssl_pmd_close(__rte_unused struct rte_cryptodev *dev)
 491 {
 492         return 0;
 493 }
 494
 495
 496 /** Get device statistics */
 497 static void
 498 openssl_pmd_stats_get(struct rte_cryptodev *dev,
 499                 struct rte_cryptodev_stats *stats)
 500 {
 501         int qp_id;
 502
 503         for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
 504                 struct openssl_qp *qp = dev->data->queue_pairs[qp_id];
 505
 506                 stats->enqueued_count += qp->stats.enqueued_count;
 507                 stats->dequeued_count += qp->stats.dequeued_count;
 508
 509                 stats->enqueue_err_count += qp->stats.enqueue_err_count;
 510                 stats->dequeue_err_count += qp->stats.dequeue_err_count;
 511         }
 512 }
 513
 514 /** Reset device statistics */
 515 static void
 516 openssl_pmd_stats_reset(struct rte_cryptodev *dev)
 517 {
 518         int qp_id;
 519
 520         for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
 521                 struct openssl_qp *qp = dev->data->queue_pairs[qp_id];
 522
 523                 memset(&qp->stats, 0, sizeof(qp->stats));
 524         }
 525 }
 526
 527
 528 /** Get device info */
 529 static void
 530 openssl_pmd_info_get(struct rte_cryptodev *dev,
 531                 struct rte_cryptodev_info *dev_info)
 532 {
 533         struct openssl_private *internals = dev->data->dev_private;
 534
 535         if (dev_info != NULL) {
 536                 dev_info->driver_id = dev->driver_id;
 537                 dev_info->feature_flags = dev->feature_flags;
 538                 dev_info->capabilities = openssl_pmd_capabilities;
 539                 dev_info->max_nb_queue_pairs = internals->max_nb_qpairs;
 540                 dev_info->sym.max_nb_sessions = internals->max_nb_sessions;
 541         }
 542 }
 543
 544 /** Release queue pair */
 545 static int
 546 openssl_pmd_qp_release(struct rte_cryptodev *dev, uint16_t qp_id)
 547 {
 548         if (dev->data->queue_pairs[qp_id] != NULL) {
 549                 rte_free(dev->data->queue_pairs[qp_id]);
 550                 dev->data->queue_pairs[qp_id] = NULL;
 551         }
 552         return 0;
 553 }
 554
 555 /** set a unique name for the queue pair based on it's name, dev_id and qp_id */
 556 static int
 557 openssl_pmd_qp_set_unique_name(struct rte_cryptodev *dev,
 558                 struct openssl_qp *qp)
 559 {
 560         unsigned int n = snprintf(qp->name, sizeof(qp->name),
 561                         "openssl_pmd_%u_qp_%u",
 562                         dev->data->dev_id, qp->id);
 563
 564         if (n > sizeof(qp->name))
 565                 return -1;
 566
 567         return 0;
 568 }
 569
 570
 571 /** Create a ring to place processed operations on */
 572 static struct rte_ring *
 573 openssl_pmd_qp_create_processed_ops_ring(struct openssl_qp *qp,
 574                 unsigned int ring_size, int socket_id)
 575 {
 576         struct rte_ring *r;
 577
 578         r = rte_ring_lookup(qp->name);
 579         if (r) {
 580                 if (rte_ring_get_size(r) >= ring_size) {
 581                         OPENSSL_LOG_INFO(
 582                                 "Reusing existing ring %s for processed ops",
 583                                  qp->name);
 584                         return r;
 585                 }
 586
 587                 OPENSSL_LOG_ERR(
 588                         "Unable to reuse existing ring %s for processed ops",
 589                          qp->name);
 590                 return NULL;
 591         }
 592
 593         return rte_ring_create(qp->name, ring_size, socket_id,
 594                         RING_F_SP_ENQ | RING_F_SC_DEQ);
 595 }
 596
 597
 598 /** Setup a queue pair */
 599 static int
 600 openssl_pmd_qp_setup(struct rte_cryptodev *dev, uint16_t qp_id,
 601                 const struct rte_cryptodev_qp_conf *qp_conf,
 602                  int socket_id)
 603 {
 604         struct openssl_qp *qp = NULL;
 605
 606         /* Free memory prior to re-allocation if needed. */
 607         if (dev->data->queue_pairs[qp_id] != NULL)
 608                 openssl_pmd_qp_release(dev, qp_id);
 609
 610         /* Allocate the queue pair data structure. */
 611         qp = rte_zmalloc_socket("OPENSSL PMD Queue Pair", sizeof(*qp),
 612                                         RTE_CACHE_LINE_SIZE, socket_id);
 613         if (qp == NULL)
 614                 return -ENOMEM;
 615
 616         qp->id = qp_id;
 617         dev->data->queue_pairs[qp_id] = qp;
 618
 619         if (openssl_pmd_qp_set_unique_name(dev, qp))
 620                 goto qp_setup_cleanup;
 621
 622         qp->processed_ops = openssl_pmd_qp_create_processed_ops_ring(qp,
 623                         qp_conf->nb_descriptors, socket_id);
 624         if (qp->processed_ops == NULL)
 625                 goto qp_setup_cleanup;
 626
 627         qp->sess_mp = dev->data->session_pool;
 628
 629         memset(&qp->stats, 0, sizeof(qp->stats));
 630
 631         return 0;
 632
 633 qp_setup_cleanup:
 634         if (qp)
 635                 rte_free(qp);
 636
 637         return -1;
 638 }
 639
 640 /** Start queue pair */
 641 static int
 642 openssl_pmd_qp_start(__rte_unused struct rte_cryptodev *dev,
 643                 __rte_unused uint16_t queue_pair_id)
 644 {
 645         return -ENOTSUP;
 646 }
 647
 648 /** Stop queue pair */
 649 static int
 650 openssl_pmd_qp_stop(__rte_unused struct rte_cryptodev *dev,
 651                 __rte_unused uint16_t queue_pair_id)
 652 {
 653         return -ENOTSUP;
 654 }
 655
 656 /** Return the number of allocated queue pairs */
 657 static uint32_t
 658 openssl_pmd_qp_count(struct rte_cryptodev *dev)
 659 {
 660         return dev->data->nb_queue_pairs;
 661 }
 662
 663 /** Returns the size of the session structure */
 664 static unsigned
 665 openssl_pmd_session_get_size(struct rte_cryptodev *dev __rte_unused)
 666 {
 667         return sizeof(struct openssl_session);
 668 }
 669
 670 /** Configure the session from a crypto xform chain */
 671 static int
 672 openssl_pmd_session_configure(struct rte_cryptodev *dev __rte_unused,
 673                 struct rte_crypto_sym_xform *xform,
 674                 struct rte_cryptodev_sym_session *sess,
 675                 struct rte_mempool *mempool)
 676 {
 677         void *sess_private_data;
 678
 679         if (unlikely(sess == NULL)) {
 680                 OPENSSL_LOG_ERR("invalid session struct");
 681                 return -1;
 682         }
 683
 684         if (rte_mempool_get(mempool, &sess_private_data)) {
 685                 CDEV_LOG_ERR(
 686                         "Couldn't get object from session mempool");
 687                 return -1;
 688         }
 689
 690         if (openssl_set_session_parameters(
 691                         sess_private_data, xform) != 0) {
 692                 OPENSSL_LOG_ERR("failed configure session parameters");
 693
 694                 /* Return session to mempool */
 695                 rte_mempool_put(mempool, sess_private_data);
 696                 return -1;
 697         }
 698
 699         set_session_private_data(sess, dev->driver_id,
 700                         sess_private_data);
 701
 702         return 0;
 703 }
 704
 705
 706 /** Clear the memory of session so it doesn't leave key material behind */
 707 static void
 708 openssl_pmd_session_clear(struct rte_cryptodev *dev,
 709                 struct rte_cryptodev_sym_session *sess)
 710 {
 711         uint8_t index = dev->driver_id;
 712         void *sess_priv = get_session_private_data(sess, index);
 713
 714         /* Zero out the whole structure */
 715         if (sess_priv) {
 716                 openssl_reset_session(sess_priv);
 717                 memset(sess_priv, 0, sizeof(struct openssl_session));
 718                 struct rte_mempool *sess_mp = rte_mempool_from_obj(sess_priv);
 719                 set_session_private_data(sess, index, NULL);
 720                 rte_mempool_put(sess_mp, sess_priv);
 721         }
 722 }
 723
 724 struct rte_cryptodev_ops openssl_pmd_ops = {
 725                 .dev_configure          = openssl_pmd_config,
 726                 .dev_start              = openssl_pmd_start,
 727                 .dev_stop               = openssl_pmd_stop,
 728                 .dev_close              = openssl_pmd_close,
 729
 730                 .stats_get              = openssl_pmd_stats_get,
 731                 .stats_reset            = openssl_pmd_stats_reset,
 732
 733                 .dev_infos_get          = openssl_pmd_info_get,
 734
 735                 .queue_pair_setup       = openssl_pmd_qp_setup,
 736                 .queue_pair_release     = openssl_pmd_qp_release,
 737                 .queue_pair_start       = openssl_pmd_qp_start,
 738                 .queue_pair_stop        = openssl_pmd_qp_stop,
 739                 .queue_pair_count       = openssl_pmd_qp_count,
 740
 741                 .session_get_size       = openssl_pmd_session_get_size,
 742                 .session_configure      = openssl_pmd_session_configure,
 743                 .session_clear          = openssl_pmd_session_clear
 744 };
 745
 746 struct rte_cryptodev_ops *rte_openssl_pmd_ops = &openssl_pmd_ops;