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 CBC */
 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_CBC,
 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         {       /* DES DOCSIS BPI */
 451                 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
 452                 {.sym = {
 453                         .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
 454                         {.cipher = {
 455                                 .algo = RTE_CRYPTO_CIPHER_DES_DOCSISBPI,
 456                                 .block_size = 8,
 457                                 .key_size = {
 458                                         .min = 8,
 459                                         .max = 8,
 460                                         .increment = 0
 461                                 },
 462                                 .iv_size = {
 463                                         .min = 8,
 464                                         .max = 8,
 465                                         .increment = 0
 466                                 }
 467                         }, }
 468                 }, }
 469         },
 470
 471         RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST()
 472 };
 473
 474
 475 /** Configure device */
 476 static int
 477 openssl_pmd_config(__rte_unused struct rte_cryptodev *dev,
 478                 __rte_unused struct rte_cryptodev_config *config)
 479 {
 480         return 0;
 481 }
 482
 483 /** Start device */
 484 static int
 485 openssl_pmd_start(__rte_unused struct rte_cryptodev *dev)
 486 {
 487         return 0;
 488 }
 489
 490 /** Stop device */
 491 static void
 492 openssl_pmd_stop(__rte_unused struct rte_cryptodev *dev)
 493 {
 494 }
 495
 496 /** Close device */
 497 static int
 498 openssl_pmd_close(__rte_unused struct rte_cryptodev *dev)
 499 {
 500         return 0;
 501 }
 502
 503
 504 /** Get device statistics */
 505 static void
 506 openssl_pmd_stats_get(struct rte_cryptodev *dev,
 507                 struct rte_cryptodev_stats *stats)
 508 {
 509         int qp_id;
 510
 511         for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
 512                 struct openssl_qp *qp = dev->data->queue_pairs[qp_id];
 513
 514                 stats->enqueued_count += qp->stats.enqueued_count;
 515                 stats->dequeued_count += qp->stats.dequeued_count;
 516
 517                 stats->enqueue_err_count += qp->stats.enqueue_err_count;
 518                 stats->dequeue_err_count += qp->stats.dequeue_err_count;
 519         }
 520 }
 521
 522 /** Reset device statistics */
 523 static void
 524 openssl_pmd_stats_reset(struct rte_cryptodev *dev)
 525 {
 526         int qp_id;
 527
 528         for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
 529                 struct openssl_qp *qp = dev->data->queue_pairs[qp_id];
 530
 531                 memset(&qp->stats, 0, sizeof(qp->stats));
 532         }
 533 }
 534
 535
 536 /** Get device info */
 537 static void
 538 openssl_pmd_info_get(struct rte_cryptodev *dev,
 539                 struct rte_cryptodev_info *dev_info)
 540 {
 541         struct openssl_private *internals = dev->data->dev_private;
 542
 543         if (dev_info != NULL) {
 544                 dev_info->driver_id = dev->driver_id;
 545                 dev_info->feature_flags = dev->feature_flags;
 546                 dev_info->capabilities = openssl_pmd_capabilities;
 547                 dev_info->max_nb_queue_pairs = internals->max_nb_qpairs;
 548                 dev_info->sym.max_nb_sessions = internals->max_nb_sessions;
 549         }
 550 }
 551
 552 /** Release queue pair */
 553 static int
 554 openssl_pmd_qp_release(struct rte_cryptodev *dev, uint16_t qp_id)
 555 {
 556         if (dev->data->queue_pairs[qp_id] != NULL) {
 557                 rte_free(dev->data->queue_pairs[qp_id]);
 558                 dev->data->queue_pairs[qp_id] = NULL;
 559         }
 560         return 0;
 561 }
 562
 563 /** set a unique name for the queue pair based on it's name, dev_id and qp_id */
 564 static int
 565 openssl_pmd_qp_set_unique_name(struct rte_cryptodev *dev,
 566                 struct openssl_qp *qp)
 567 {
 568         unsigned int n = snprintf(qp->name, sizeof(qp->name),
 569                         "openssl_pmd_%u_qp_%u",
 570                         dev->data->dev_id, qp->id);
 571
 572         if (n > sizeof(qp->name))
 573                 return -1;
 574
 575         return 0;
 576 }
 577
 578
 579 /** Create a ring to place processed operations on */
 580 static struct rte_ring *
 581 openssl_pmd_qp_create_processed_ops_ring(struct openssl_qp *qp,
 582                 unsigned int ring_size, int socket_id)
 583 {
 584         struct rte_ring *r;
 585
 586         r = rte_ring_lookup(qp->name);
 587         if (r) {
 588                 if (rte_ring_get_size(r) >= ring_size) {
 589                         OPENSSL_LOG_INFO(
 590                                 "Reusing existing ring %s for processed ops",
 591                                  qp->name);
 592                         return r;
 593                 }
 594
 595                 OPENSSL_LOG_ERR(
 596                         "Unable to reuse existing ring %s for processed ops",
 597                          qp->name);
 598                 return NULL;
 599         }
 600
 601         return rte_ring_create(qp->name, ring_size, socket_id,
 602                         RING_F_SP_ENQ | RING_F_SC_DEQ);
 603 }
 604
 605
 606 /** Setup a queue pair */
 607 static int
 608 openssl_pmd_qp_setup(struct rte_cryptodev *dev, uint16_t qp_id,
 609                 const struct rte_cryptodev_qp_conf *qp_conf,
 610                 int socket_id, struct rte_mempool *session_pool)
 611 {
 612         struct openssl_qp *qp = NULL;
 613
 614         /* Free memory prior to re-allocation if needed. */
 615         if (dev->data->queue_pairs[qp_id] != NULL)
 616                 openssl_pmd_qp_release(dev, qp_id);
 617
 618         /* Allocate the queue pair data structure. */
 619         qp = rte_zmalloc_socket("OPENSSL PMD Queue Pair", sizeof(*qp),
 620                                         RTE_CACHE_LINE_SIZE, socket_id);
 621         if (qp == NULL)
 622                 return -ENOMEM;
 623
 624         qp->id = qp_id;
 625         dev->data->queue_pairs[qp_id] = qp;
 626
 627         if (openssl_pmd_qp_set_unique_name(dev, qp))
 628                 goto qp_setup_cleanup;
 629
 630         qp->processed_ops = openssl_pmd_qp_create_processed_ops_ring(qp,
 631                         qp_conf->nb_descriptors, socket_id);
 632         if (qp->processed_ops == NULL)
 633                 goto qp_setup_cleanup;
 634
 635         qp->sess_mp = session_pool;
 636
 637         memset(&qp->stats, 0, sizeof(qp->stats));
 638
 639         return 0;
 640
 641 qp_setup_cleanup:
 642         if (qp)
 643                 rte_free(qp);
 644
 645         return -1;
 646 }
 647
 648 /** Start queue pair */
 649 static int
 650 openssl_pmd_qp_start(__rte_unused struct rte_cryptodev *dev,
 651                 __rte_unused uint16_t queue_pair_id)
 652 {
 653         return -ENOTSUP;
 654 }
 655
 656 /** Stop queue pair */
 657 static int
 658 openssl_pmd_qp_stop(__rte_unused struct rte_cryptodev *dev,
 659                 __rte_unused uint16_t queue_pair_id)
 660 {
 661         return -ENOTSUP;
 662 }
 663
 664 /** Return the number of allocated queue pairs */
 665 static uint32_t
 666 openssl_pmd_qp_count(struct rte_cryptodev *dev)
 667 {
 668         return dev->data->nb_queue_pairs;
 669 }
 670
 671 /** Returns the size of the session structure */
 672 static unsigned
 673 openssl_pmd_session_get_size(struct rte_cryptodev *dev __rte_unused)
 674 {
 675         return sizeof(struct openssl_session);
 676 }
 677
 678 /** Configure the session from a crypto xform chain */
 679 static int
 680 openssl_pmd_session_configure(struct rte_cryptodev *dev __rte_unused,
 681                 struct rte_crypto_sym_xform *xform,
 682                 struct rte_cryptodev_sym_session *sess,
 683                 struct rte_mempool *mempool)
 684 {
 685         void *sess_private_data;
 686         int ret;
 687
 688         if (unlikely(sess == NULL)) {
 689                 OPENSSL_LOG_ERR("invalid session struct");
 690                 return -EINVAL;
 691         }
 692
 693         if (rte_mempool_get(mempool, &sess_private_data)) {
 694                 CDEV_LOG_ERR(
 695                         "Couldn't get object from session mempool");
 696                 return -ENOMEM;
 697         }
 698
 699         ret = openssl_set_session_parameters(sess_private_data, xform);
 700         if (ret != 0) {
 701                 OPENSSL_LOG_ERR("failed configure session parameters");
 702
 703                 /* Return session to mempool */
 704                 rte_mempool_put(mempool, sess_private_data);
 705                 return ret;
 706         }
 707
 708         set_session_private_data(sess, dev->driver_id,
 709                         sess_private_data);
 710
 711         return 0;
 712 }
 713
 714
 715 /** Clear the memory of session so it doesn't leave key material behind */
 716 static void
 717 openssl_pmd_session_clear(struct rte_cryptodev *dev,
 718                 struct rte_cryptodev_sym_session *sess)
 719 {
 720         uint8_t index = dev->driver_id;
 721         void *sess_priv = get_session_private_data(sess, index);
 722
 723         /* Zero out the whole structure */
 724         if (sess_priv) {
 725                 openssl_reset_session(sess_priv);
 726                 memset(sess_priv, 0, sizeof(struct openssl_session));
 727                 struct rte_mempool *sess_mp = rte_mempool_from_obj(sess_priv);
 728                 set_session_private_data(sess, index, NULL);
 729                 rte_mempool_put(sess_mp, sess_priv);
 730         }
 731 }
 732
 733 struct rte_cryptodev_ops openssl_pmd_ops = {
 734                 .dev_configure          = openssl_pmd_config,
 735                 .dev_start              = openssl_pmd_start,
 736                 .dev_stop               = openssl_pmd_stop,
 737                 .dev_close              = openssl_pmd_close,
 738
 739                 .stats_get              = openssl_pmd_stats_get,
 740                 .stats_reset            = openssl_pmd_stats_reset,
 741
 742                 .dev_infos_get          = openssl_pmd_info_get,
 743
 744                 .queue_pair_setup       = openssl_pmd_qp_setup,
 745                 .queue_pair_release     = openssl_pmd_qp_release,
 746                 .queue_pair_start       = openssl_pmd_qp_start,
 747                 .queue_pair_stop        = openssl_pmd_qp_stop,
 748                 .queue_pair_count       = openssl_pmd_qp_count,
 749
 750                 .session_get_size       = openssl_pmd_session_get_size,
 751                 .session_configure      = openssl_pmd_session_configure,
 752                 .session_clear          = openssl_pmd_session_clear
 753 };
 754
 755 struct rte_cryptodev_ops *rte_openssl_pmd_ops = &openssl_pmd_ops;