drivers/crypto/openssl/rte_openssl_pmd.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 <rte_common.h>
  34 #include <rte_hexdump.h>
  35 #include <rte_cryptodev.h>
  36 #include <rte_cryptodev_pmd.h>
  37 #include <rte_cryptodev_vdev.h>
  38 #include <rte_vdev.h>
  39 #include <rte_malloc.h>
  40 #include <rte_cpuflags.h>
  41
  42 #include <openssl/hmac.h>
  43 #include <openssl/evp.h>
  44
  45 #include "rte_openssl_pmd_private.h"
  46
  47 #define DES_BLOCK_SIZE 8
  48
  49 static uint8_t cryptodev_driver_id;
  50
  51 #if (OPENSSL_VERSION_NUMBER < 0x10100000L)
  52 static HMAC_CTX *HMAC_CTX_new(void)
  53 {
  54         HMAC_CTX *ctx = OPENSSL_malloc(sizeof(*ctx));
  55
  56         if (ctx != NULL)
  57                 HMAC_CTX_init(ctx);
  58         return ctx;
  59 }
  60
  61 static void HMAC_CTX_free(HMAC_CTX *ctx)
  62 {
  63         if (ctx != NULL) {
  64                 HMAC_CTX_cleanup(ctx);
  65                 OPENSSL_free(ctx);
  66         }
  67 }
  68 #endif
  69
  70 static int cryptodev_openssl_remove(struct rte_vdev_device *vdev);
  71
  72 /*----------------------------------------------------------------------------*/
  73
  74 /**
  75  * Increment counter by 1
  76  * Counter is 64 bit array, big-endian
  77  */
  78 static void
  79 ctr_inc(uint8_t *ctr)
  80 {
  81         uint64_t *ctr64 = (uint64_t *)ctr;
  82
  83         *ctr64 = __builtin_bswap64(*ctr64);
  84         (*ctr64)++;
  85         *ctr64 = __builtin_bswap64(*ctr64);
  86 }
  87
  88 /*
  89  *------------------------------------------------------------------------------
  90  * Session Prepare
  91  *------------------------------------------------------------------------------
  92  */
  93
  94 /** Get xform chain order */
  95 static enum openssl_chain_order
  96 openssl_get_chain_order(const struct rte_crypto_sym_xform *xform)
  97 {
  98         enum openssl_chain_order res = OPENSSL_CHAIN_NOT_SUPPORTED;
  99
 100         if (xform != NULL) {
 101                 if (xform->type == RTE_CRYPTO_SYM_XFORM_AUTH) {
 102                         if (xform->next == NULL)
 103                                 res =  OPENSSL_CHAIN_ONLY_AUTH;
 104                         else if (xform->next->type ==
 105                                         RTE_CRYPTO_SYM_XFORM_CIPHER)
 106                                 res =  OPENSSL_CHAIN_AUTH_CIPHER;
 107                 }
 108                 if (xform->type == RTE_CRYPTO_SYM_XFORM_CIPHER) {
 109                         if (xform->next == NULL)
 110                                 res =  OPENSSL_CHAIN_ONLY_CIPHER;
 111                         else if (xform->next->type == RTE_CRYPTO_SYM_XFORM_AUTH)
 112                                 res =  OPENSSL_CHAIN_CIPHER_AUTH;
 113                 }
 114                 if (xform->type == RTE_CRYPTO_SYM_XFORM_AEAD)
 115                         res = OPENSSL_CHAIN_COMBINED;
 116         }
 117
 118         return res;
 119 }
 120
 121 /** Get session cipher key from input cipher key */
 122 static void
 123 get_cipher_key(uint8_t *input_key, int keylen, uint8_t *session_key)
 124 {
 125         memcpy(session_key, input_key, keylen);
 126 }
 127
 128 /** Get key ede 24 bytes standard from input key */
 129 static int
 130 get_cipher_key_ede(uint8_t *key, int keylen, uint8_t *key_ede)
 131 {
 132         int res = 0;
 133
 134         /* Initialize keys - 24 bytes: [key1-key2-key3] */
 135         switch (keylen) {
 136         case 24:
 137                 memcpy(key_ede, key, 24);
 138                 break;
 139         case 16:
 140                 /* K3 = K1 */
 141                 memcpy(key_ede, key, 16);
 142                 memcpy(key_ede + 16, key, 8);
 143                 break;
 144         case 8:
 145                 /* K1 = K2 = K3 (DES compatibility) */
 146                 memcpy(key_ede, key, 8);
 147                 memcpy(key_ede + 8, key, 8);
 148                 memcpy(key_ede + 16, key, 8);
 149                 break;
 150         default:
 151                 OPENSSL_LOG_ERR("Unsupported key size");
 152                 res = -EINVAL;
 153         }
 154
 155         return res;
 156 }
 157
 158 /** Get adequate openssl function for input cipher algorithm */
 159 static uint8_t
 160 get_cipher_algo(enum rte_crypto_cipher_algorithm sess_algo, size_t keylen,
 161                 const EVP_CIPHER **algo)
 162 {
 163         int res = 0;
 164
 165         if (algo != NULL) {
 166                 switch (sess_algo) {
 167                 case RTE_CRYPTO_CIPHER_3DES_CBC:
 168                         switch (keylen) {
 169                         case 16:
 170                                 *algo = EVP_des_ede_cbc();
 171                                 break;
 172                         case 24:
 173                                 *algo = EVP_des_ede3_cbc();
 174                                 break;
 175                         default:
 176                                 res = -EINVAL;
 177                         }
 178                         break;
 179                 case RTE_CRYPTO_CIPHER_3DES_CTR:
 180                         break;
 181                 case RTE_CRYPTO_CIPHER_AES_CBC:
 182                         switch (keylen) {
 183                         case 16:
 184                                 *algo = EVP_aes_128_cbc();
 185                                 break;
 186                         case 24:
 187                                 *algo = EVP_aes_192_cbc();
 188                                 break;
 189                         case 32:
 190                                 *algo = EVP_aes_256_cbc();
 191                                 break;
 192                         default:
 193                                 res = -EINVAL;
 194                         }
 195                         break;
 196                 case RTE_CRYPTO_CIPHER_AES_CTR:
 197                         switch (keylen) {
 198                         case 16:
 199                                 *algo = EVP_aes_128_ctr();
 200                                 break;
 201                         case 24:
 202                                 *algo = EVP_aes_192_ctr();
 203                                 break;
 204                         case 32:
 205                                 *algo = EVP_aes_256_ctr();
 206                                 break;
 207                         default:
 208                                 res = -EINVAL;
 209                         }
 210                         break;
 211                 default:
 212                         res = -EINVAL;
 213                         break;
 214                 }
 215         } else {
 216                 res = -EINVAL;
 217         }
 218
 219         return res;
 220 }
 221
 222 /** Get adequate openssl function for input auth algorithm */
 223 static uint8_t
 224 get_auth_algo(enum rte_crypto_auth_algorithm sessalgo,
 225                 const EVP_MD **algo)
 226 {
 227         int res = 0;
 228
 229         if (algo != NULL) {
 230                 switch (sessalgo) {
 231                 case RTE_CRYPTO_AUTH_MD5:
 232                 case RTE_CRYPTO_AUTH_MD5_HMAC:
 233                         *algo = EVP_md5();
 234                         break;
 235                 case RTE_CRYPTO_AUTH_SHA1:
 236                 case RTE_CRYPTO_AUTH_SHA1_HMAC:
 237                         *algo = EVP_sha1();
 238                         break;
 239                 case RTE_CRYPTO_AUTH_SHA224:
 240                 case RTE_CRYPTO_AUTH_SHA224_HMAC:
 241                         *algo = EVP_sha224();
 242                         break;
 243                 case RTE_CRYPTO_AUTH_SHA256:
 244                 case RTE_CRYPTO_AUTH_SHA256_HMAC:
 245                         *algo = EVP_sha256();
 246                         break;
 247                 case RTE_CRYPTO_AUTH_SHA384:
 248                 case RTE_CRYPTO_AUTH_SHA384_HMAC:
 249                         *algo = EVP_sha384();
 250                         break;
 251                 case RTE_CRYPTO_AUTH_SHA512:
 252                 case RTE_CRYPTO_AUTH_SHA512_HMAC:
 253                         *algo = EVP_sha512();
 254                         break;
 255                 default:
 256                         res = -EINVAL;
 257                         break;
 258                 }
 259         } else {
 260                 res = -EINVAL;
 261         }
 262
 263         return res;
 264 }
 265
 266 /** Get adequate openssl function for input cipher algorithm */
 267 static uint8_t
 268 get_aead_algo(enum rte_crypto_aead_algorithm sess_algo, size_t keylen,
 269                 const EVP_CIPHER **algo)
 270 {
 271         int res = 0;
 272
 273         if (algo != NULL) {
 274                 switch (sess_algo) {
 275                 case RTE_CRYPTO_AEAD_AES_GCM:
 276                         switch (keylen) {
 277                         case 16:
 278                                 *algo = EVP_aes_128_gcm();
 279                                 break;
 280                         case 24:
 281                                 *algo = EVP_aes_192_gcm();
 282                                 break;
 283                         case 32:
 284                                 *algo = EVP_aes_256_gcm();
 285                                 break;
 286                         default:
 287                                 res = -EINVAL;
 288                         }
 289                         break;
 290                 default:
 291                         res = -EINVAL;
 292                         break;
 293                 }
 294         } else {
 295                 res = -EINVAL;
 296         }
 297
 298         return res;
 299 }
 300
 301 /** Set session cipher parameters */
 302 static int
 303 openssl_set_session_cipher_parameters(struct openssl_session *sess,
 304                 const struct rte_crypto_sym_xform *xform)
 305 {
 306         /* Select cipher direction */
 307         sess->cipher.direction = xform->cipher.op;
 308         /* Select cipher key */
 309         sess->cipher.key.length = xform->cipher.key.length;
 310
 311         /* Set IV parameters */
 312         sess->iv.offset = xform->cipher.iv.offset;
 313         sess->iv.length = xform->cipher.iv.length;
 314
 315         /* Select cipher algo */
 316         switch (xform->cipher.algo) {
 317         case RTE_CRYPTO_CIPHER_3DES_CBC:
 318         case RTE_CRYPTO_CIPHER_AES_CBC:
 319         case RTE_CRYPTO_CIPHER_AES_CTR:
 320                 sess->cipher.mode = OPENSSL_CIPHER_LIB;
 321                 sess->cipher.algo = xform->cipher.algo;
 322                 sess->cipher.ctx = EVP_CIPHER_CTX_new();
 323
 324                 if (get_cipher_algo(sess->cipher.algo, sess->cipher.key.length,
 325                                 &sess->cipher.evp_algo) != 0)
 326                         return -EINVAL;
 327
 328                 get_cipher_key(xform->cipher.key.data, sess->cipher.key.length,
 329                         sess->cipher.key.data);
 330                 if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT) {
 331                         if (EVP_EncryptInit_ex(sess->cipher.ctx,
 332                                         sess->cipher.evp_algo,
 333                                         NULL, xform->cipher.key.data,
 334                                         NULL) != 1) {
 335                                 return -EINVAL;
 336                         }
 337                 } else if (sess->cipher.direction ==
 338                                 RTE_CRYPTO_CIPHER_OP_DECRYPT) {
 339                         if (EVP_DecryptInit_ex(sess->cipher.ctx,
 340                                         sess->cipher.evp_algo,
 341                                         NULL, xform->cipher.key.data,
 342                                         NULL) != 1) {
 343                                 return -EINVAL;
 344                         }
 345                 }
 346
 347                 break;
 348
 349         case RTE_CRYPTO_CIPHER_3DES_CTR:
 350                 sess->cipher.mode = OPENSSL_CIPHER_DES3CTR;
 351                 sess->cipher.ctx = EVP_CIPHER_CTX_new();
 352
 353                 if (get_cipher_key_ede(xform->cipher.key.data,
 354                                 sess->cipher.key.length,
 355                                 sess->cipher.key.data) != 0)
 356                         return -EINVAL;
 357                 break;
 358         case RTE_CRYPTO_CIPHER_DES_DOCSISBPI:
 359                 sess->cipher.algo = xform->cipher.algo;
 360                 sess->chain_order = OPENSSL_CHAIN_CIPHER_BPI;
 361                 sess->cipher.ctx = EVP_CIPHER_CTX_new();
 362                 sess->cipher.evp_algo = EVP_des_cbc();
 363
 364                 sess->cipher.bpi_ctx = EVP_CIPHER_CTX_new();
 365                 /* IV will be ECB encrypted whether direction is encrypt or decrypt */
 366                 if (EVP_EncryptInit_ex(sess->cipher.bpi_ctx, EVP_des_ecb(),
 367                                 NULL, xform->cipher.key.data, 0) != 1)
 368                         return -EINVAL;
 369
 370                 get_cipher_key(xform->cipher.key.data, sess->cipher.key.length,
 371                         sess->cipher.key.data);
 372                 if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT) {
 373                         if (EVP_EncryptInit_ex(sess->cipher.ctx,
 374                                         sess->cipher.evp_algo,
 375                                         NULL, xform->cipher.key.data,
 376                                         NULL) != 1) {
 377                                 return -EINVAL;
 378                         }
 379                 } else if (sess->cipher.direction ==
 380                                 RTE_CRYPTO_CIPHER_OP_DECRYPT) {
 381                         if (EVP_DecryptInit_ex(sess->cipher.ctx,
 382                                         sess->cipher.evp_algo,
 383                                         NULL, xform->cipher.key.data,
 384                                         NULL) != 1) {
 385                                 return -EINVAL;
 386                         }
 387                 }
 388
 389                 break;
 390         default:
 391                 sess->cipher.algo = RTE_CRYPTO_CIPHER_NULL;
 392                 return -ENOTSUP;
 393         }
 394
 395         return 0;
 396 }
 397
 398 /* Set session auth parameters */
 399 static int
 400 openssl_set_session_auth_parameters(struct openssl_session *sess,
 401                 const struct rte_crypto_sym_xform *xform)
 402 {
 403         /* Select auth generate/verify */
 404         sess->auth.operation = xform->auth.op;
 405         sess->auth.algo = xform->auth.algo;
 406
 407         /* Select auth algo */
 408         switch (xform->auth.algo) {
 409         case RTE_CRYPTO_AUTH_AES_GMAC:
 410                 sess->chain_order = OPENSSL_CHAIN_COMBINED;
 411
 412                 /* Set IV parameters */
 413                 sess->iv.offset = xform->auth.iv.offset;
 414                 sess->iv.length = xform->auth.iv.length;
 415
 416                 /*
 417                  * OpenSSL requires GMAC to be a GCM operation
 418                  * with no cipher data length
 419                  */
 420                 sess->cipher.mode = OPENSSL_CIPHER_LIB;
 421                 if (sess->auth.operation == RTE_CRYPTO_AUTH_OP_GENERATE)
 422                         sess->cipher.direction = RTE_CRYPTO_CIPHER_OP_ENCRYPT;
 423                 else
 424                         sess->cipher.direction = RTE_CRYPTO_CIPHER_OP_DECRYPT;
 425
 426                 sess->cipher.key.length = xform->auth.key.length;
 427                 sess->cipher.ctx = EVP_CIPHER_CTX_new();
 428
 429                 if (get_aead_algo(RTE_CRYPTO_AEAD_AES_GCM,
 430                                 sess->cipher.key.length,
 431                                 &sess->cipher.evp_algo) != 0)
 432                         return -EINVAL;
 433
 434                 get_cipher_key(xform->auth.key.data, xform->auth.key.length,
 435                         sess->cipher.key.data);
 436
 437                 break;
 438
 439         case RTE_CRYPTO_AUTH_MD5:
 440         case RTE_CRYPTO_AUTH_SHA1:
 441         case RTE_CRYPTO_AUTH_SHA224:
 442         case RTE_CRYPTO_AUTH_SHA256:
 443         case RTE_CRYPTO_AUTH_SHA384:
 444         case RTE_CRYPTO_AUTH_SHA512:
 445                 sess->auth.mode = OPENSSL_AUTH_AS_AUTH;
 446                 if (get_auth_algo(xform->auth.algo,
 447                                 &sess->auth.auth.evp_algo) != 0)
 448                         return -EINVAL;
 449                 sess->auth.auth.ctx = EVP_MD_CTX_create();
 450                 break;
 451
 452         case RTE_CRYPTO_AUTH_MD5_HMAC:
 453         case RTE_CRYPTO_AUTH_SHA1_HMAC:
 454         case RTE_CRYPTO_AUTH_SHA224_HMAC:
 455         case RTE_CRYPTO_AUTH_SHA256_HMAC:
 456         case RTE_CRYPTO_AUTH_SHA384_HMAC:
 457         case RTE_CRYPTO_AUTH_SHA512_HMAC:
 458                 sess->auth.mode = OPENSSL_AUTH_AS_HMAC;
 459                 sess->auth.hmac.ctx = HMAC_CTX_new();
 460                 if (get_auth_algo(xform->auth.algo,
 461                                 &sess->auth.hmac.evp_algo) != 0)
 462                         return -EINVAL;
 463
 464                 if (HMAC_Init_ex(sess->auth.hmac.ctx,
 465                                 xform->auth.key.data,
 466                                 xform->auth.key.length,
 467                                 sess->auth.hmac.evp_algo, NULL) != 1)
 468                         return -EINVAL;
 469                 break;
 470
 471         default:
 472                 return -ENOTSUP;
 473         }
 474
 475         sess->auth.digest_length = xform->auth.digest_length;
 476
 477         return 0;
 478 }
 479
 480 /* Set session AEAD parameters */
 481 static int
 482 openssl_set_session_aead_parameters(struct openssl_session *sess,
 483                 const struct rte_crypto_sym_xform *xform)
 484 {
 485         /* Select cipher direction */
 486         sess->cipher.direction = xform->cipher.op;
 487         /* Select cipher key */
 488         sess->cipher.key.length = xform->aead.key.length;
 489
 490         /* Set IV parameters */
 491         sess->iv.offset = xform->aead.iv.offset;
 492         sess->iv.length = xform->aead.iv.length;
 493
 494         /* Select auth generate/verify */
 495         sess->auth.operation = xform->auth.op;
 496         sess->auth.algo = xform->auth.algo;
 497
 498         /* Select auth algo */
 499         switch (xform->aead.algo) {
 500         case RTE_CRYPTO_AEAD_AES_GCM:
 501                 sess->cipher.mode = OPENSSL_CIPHER_LIB;
 502                 sess->aead_algo = xform->aead.algo;
 503                 sess->cipher.ctx = EVP_CIPHER_CTX_new();
 504
 505                 if (get_aead_algo(sess->aead_algo, sess->cipher.key.length,
 506                                 &sess->cipher.evp_algo) != 0)
 507                         return -EINVAL;
 508
 509                 get_cipher_key(xform->cipher.key.data, sess->cipher.key.length,
 510                         sess->cipher.key.data);
 511
 512                 sess->chain_order = OPENSSL_CHAIN_COMBINED;
 513                 break;
 514         default:
 515                 return -ENOTSUP;
 516         }
 517
 518         sess->auth.aad_length = xform->aead.aad_length;
 519         sess->auth.digest_length = xform->aead.digest_length;
 520
 521         return 0;
 522 }
 523
 524 /** Parse crypto xform chain and set private session parameters */
 525 int
 526 openssl_set_session_parameters(struct openssl_session *sess,
 527                 const struct rte_crypto_sym_xform *xform)
 528 {
 529         const struct rte_crypto_sym_xform *cipher_xform = NULL;
 530         const struct rte_crypto_sym_xform *auth_xform = NULL;
 531         const struct rte_crypto_sym_xform *aead_xform = NULL;
 532         int ret;
 533
 534         sess->chain_order = openssl_get_chain_order(xform);
 535         switch (sess->chain_order) {
 536         case OPENSSL_CHAIN_ONLY_CIPHER:
 537                 cipher_xform = xform;
 538                 break;
 539         case OPENSSL_CHAIN_ONLY_AUTH:
 540                 auth_xform = xform;
 541                 break;
 542         case OPENSSL_CHAIN_CIPHER_AUTH:
 543                 cipher_xform = xform;
 544                 auth_xform = xform->next;
 545                 break;
 546         case OPENSSL_CHAIN_AUTH_CIPHER:
 547                 auth_xform = xform;
 548                 cipher_xform = xform->next;
 549                 break;
 550         case OPENSSL_CHAIN_COMBINED:
 551                 aead_xform = xform;
 552                 break;
 553         default:
 554                 return -EINVAL;
 555         }
 556
 557         /* Default IV length = 0 */
 558         sess->iv.length = 0;
 559
 560         /* cipher_xform must be check before auth_xform */
 561         if (cipher_xform) {
 562                 ret = openssl_set_session_cipher_parameters(
 563                                 sess, cipher_xform);
 564                 if (ret != 0) {
 565                         OPENSSL_LOG_ERR(
 566                                 "Invalid/unsupported cipher parameters");
 567                         return ret;
 568                 }
 569         }
 570
 571         if (auth_xform) {
 572                 ret = openssl_set_session_auth_parameters(sess, auth_xform);
 573                 if (ret != 0) {
 574                         OPENSSL_LOG_ERR(
 575                                 "Invalid/unsupported auth parameters");
 576                         return ret;
 577                 }
 578         }
 579
 580         if (aead_xform) {
 581                 ret = openssl_set_session_aead_parameters(sess, aead_xform);
 582                 if (ret != 0) {
 583                         OPENSSL_LOG_ERR(
 584                                 "Invalid/unsupported AEAD parameters");
 585                         return ret;
 586                 }
 587         }
 588
 589         return 0;
 590 }
 591
 592 /** Reset private session parameters */
 593 void
 594 openssl_reset_session(struct openssl_session *sess)
 595 {
 596         EVP_CIPHER_CTX_free(sess->cipher.ctx);
 597
 598         if (sess->chain_order == OPENSSL_CHAIN_CIPHER_BPI)
 599                 EVP_CIPHER_CTX_free(sess->cipher.bpi_ctx);
 600
 601         switch (sess->auth.mode) {
 602         case OPENSSL_AUTH_AS_AUTH:
 603                 EVP_MD_CTX_destroy(sess->auth.auth.ctx);
 604                 break;
 605         case OPENSSL_AUTH_AS_HMAC:
 606                 EVP_PKEY_free(sess->auth.hmac.pkey);
 607                 HMAC_CTX_free(sess->auth.hmac.ctx);
 608                 break;
 609         default:
 610                 break;
 611         }
 612 }
 613
 614 /** Provide session for operation */
 615 static struct openssl_session *
 616 get_session(struct openssl_qp *qp, struct rte_crypto_op *op)
 617 {
 618         struct openssl_session *sess = NULL;
 619
 620         if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION) {
 621                 /* get existing session */
 622                 if (likely(op->sym->session != NULL))
 623                         sess = (struct openssl_session *)
 624                                         get_session_private_data(
 625                                         op->sym->session,
 626                                         cryptodev_driver_id);
 627         } else {
 628                 /* provide internal session */
 629                 void *_sess = NULL;
 630                 void *_sess_private_data = NULL;
 631
 632                 if (rte_mempool_get(qp->sess_mp, (void **)&_sess))
 633                         return NULL;
 634
 635                 if (rte_mempool_get(qp->sess_mp, (void **)&_sess_private_data))
 636                         return NULL;
 637
 638                 sess = (struct openssl_session *)_sess_private_data;
 639
 640                 if (unlikely(openssl_set_session_parameters(sess,
 641                                 op->sym->xform) != 0)) {
 642                         rte_mempool_put(qp->sess_mp, _sess);
 643                         rte_mempool_put(qp->sess_mp, _sess_private_data);
 644                         sess = NULL;
 645                 }
 646                 op->sym->session = (struct rte_cryptodev_sym_session *)_sess;
 647                 set_session_private_data(op->sym->session, cryptodev_driver_id,
 648                         _sess_private_data);
 649         }
 650
 651         if (sess == NULL)
 652                 op->status = RTE_CRYPTO_OP_STATUS_INVALID_SESSION;
 653
 654         return sess;
 655 }
 656
 657 /*
 658  *------------------------------------------------------------------------------
 659  * Process Operations
 660  *------------------------------------------------------------------------------
 661  */
 662 static inline int
 663 process_openssl_encryption_update(struct rte_mbuf *mbuf_src, int offset,
 664                 uint8_t **dst, int srclen, EVP_CIPHER_CTX *ctx)
 665 {
 666         struct rte_mbuf *m;
 667         int dstlen;
 668         int l, n = srclen;
 669         uint8_t *src;
 670
 671         for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m);
 672                         m = m->next)
 673                 offset -= rte_pktmbuf_data_len(m);
 674
 675         if (m == 0)
 676                 return -1;
 677
 678         src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset);
 679
 680         l = rte_pktmbuf_data_len(m) - offset;
 681         if (srclen <= l) {
 682                 if (EVP_EncryptUpdate(ctx, *dst, &dstlen, src, srclen) <= 0)
 683                         return -1;
 684                 *dst += l;
 685                 return 0;
 686         }
 687
 688         if (EVP_EncryptUpdate(ctx, *dst, &dstlen, src, l) <= 0)
 689                 return -1;
 690
 691         *dst += dstlen;
 692         n -= l;
 693
 694         for (m = m->next; (m != NULL) && (n > 0); m = m->next) {
 695                 src = rte_pktmbuf_mtod(m, uint8_t *);
 696                 l = rte_pktmbuf_data_len(m) < n ? rte_pktmbuf_data_len(m) : n;
 697                 if (EVP_EncryptUpdate(ctx, *dst, &dstlen, src, l) <= 0)
 698                         return -1;
 699                 *dst += dstlen;
 700                 n -= l;
 701         }
 702
 703         return 0;
 704 }
 705
 706 static inline int
 707 process_openssl_decryption_update(struct rte_mbuf *mbuf_src, int offset,
 708                 uint8_t **dst, int srclen, EVP_CIPHER_CTX *ctx)
 709 {
 710         struct rte_mbuf *m;
 711         int dstlen;
 712         int l, n = srclen;
 713         uint8_t *src;
 714
 715         for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m);
 716                         m = m->next)
 717                 offset -= rte_pktmbuf_data_len(m);
 718
 719         if (m == 0)
 720                 return -1;
 721
 722         src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset);
 723
 724         l = rte_pktmbuf_data_len(m) - offset;
 725         if (srclen <= l) {
 726                 if (EVP_DecryptUpdate(ctx, *dst, &dstlen, src, srclen) <= 0)
 727                         return -1;
 728                 *dst += l;
 729                 return 0;
 730         }
 731
 732         if (EVP_DecryptUpdate(ctx, *dst, &dstlen, src, l) <= 0)
 733                 return -1;
 734
 735         *dst += dstlen;
 736         n -= l;
 737
 738         for (m = m->next; (m != NULL) && (n > 0); m = m->next) {
 739                 src = rte_pktmbuf_mtod(m, uint8_t *);
 740                 l = rte_pktmbuf_data_len(m) < n ? rte_pktmbuf_data_len(m) : n;
 741                 if (EVP_DecryptUpdate(ctx, *dst, &dstlen, src, l) <= 0)
 742                         return -1;
 743                 *dst += dstlen;
 744                 n -= l;
 745         }
 746
 747         return 0;
 748 }
 749
 750 /** Process standard openssl cipher encryption */
 751 static int
 752 process_openssl_cipher_encrypt(struct rte_mbuf *mbuf_src, uint8_t *dst,
 753                 int offset, uint8_t *iv, int srclen, EVP_CIPHER_CTX *ctx)
 754 {
 755         int totlen;
 756
 757         if (EVP_EncryptInit_ex(ctx, NULL, NULL, NULL, iv) <= 0)
 758                 goto process_cipher_encrypt_err;
 759
 760         EVP_CIPHER_CTX_set_padding(ctx, 0);
 761
 762         if (process_openssl_encryption_update(mbuf_src, offset, &dst,
 763                         srclen, ctx))
 764                 goto process_cipher_encrypt_err;
 765
 766         if (EVP_EncryptFinal_ex(ctx, dst, &totlen) <= 0)
 767                 goto process_cipher_encrypt_err;
 768
 769         return 0;
 770
 771 process_cipher_encrypt_err:
 772         OPENSSL_LOG_ERR("Process openssl cipher encrypt failed");
 773         return -EINVAL;
 774 }
 775
 776 /** Process standard openssl cipher encryption */
 777 static int
 778 process_openssl_cipher_bpi_encrypt(uint8_t *src, uint8_t *dst,
 779                 uint8_t *iv, int srclen,
 780                 EVP_CIPHER_CTX *ctx)
 781 {
 782         uint8_t i;
 783         uint8_t encrypted_iv[DES_BLOCK_SIZE];
 784         int encrypted_ivlen;
 785
 786         if (EVP_EncryptUpdate(ctx, encrypted_iv, &encrypted_ivlen,
 787                         iv, DES_BLOCK_SIZE) <= 0)
 788                 goto process_cipher_encrypt_err;
 789
 790         for (i = 0; i < srclen; i++)
 791                 *(dst + i) = *(src + i) ^ (encrypted_iv[i]);
 792
 793         return 0;
 794
 795 process_cipher_encrypt_err:
 796         OPENSSL_LOG_ERR("Process openssl cipher bpi encrypt failed");
 797         return -EINVAL;
 798 }
 799 /** Process standard openssl cipher decryption */
 800 static int
 801 process_openssl_cipher_decrypt(struct rte_mbuf *mbuf_src, uint8_t *dst,
 802                 int offset, uint8_t *iv, int srclen, EVP_CIPHER_CTX *ctx)
 803 {
 804         int totlen;
 805
 806         if (EVP_DecryptInit_ex(ctx, NULL, NULL, NULL, iv) <= 0)
 807                 goto process_cipher_decrypt_err;
 808
 809         EVP_CIPHER_CTX_set_padding(ctx, 0);
 810
 811         if (process_openssl_decryption_update(mbuf_src, offset, &dst,
 812                         srclen, ctx))
 813                 goto process_cipher_decrypt_err;
 814
 815         if (EVP_DecryptFinal_ex(ctx, dst, &totlen) <= 0)
 816                 goto process_cipher_decrypt_err;
 817         return 0;
 818
 819 process_cipher_decrypt_err:
 820         OPENSSL_LOG_ERR("Process openssl cipher decrypt failed");
 821         return -EINVAL;
 822 }
 823
 824 /** Process cipher des 3 ctr encryption, decryption algorithm */
 825 static int
 826 process_openssl_cipher_des3ctr(struct rte_mbuf *mbuf_src, uint8_t *dst,
 827                 int offset, uint8_t *iv, uint8_t *key, int srclen,
 828                 EVP_CIPHER_CTX *ctx)
 829 {
 830         uint8_t ebuf[8], ctr[8];
 831         int unused, n;
 832         struct rte_mbuf *m;
 833         uint8_t *src;
 834         int l;
 835
 836         for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m);
 837                         m = m->next)
 838                 offset -= rte_pktmbuf_data_len(m);
 839
 840         if (m == 0)
 841                 goto process_cipher_des3ctr_err;
 842
 843         src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset);
 844         l = rte_pktmbuf_data_len(m) - offset;
 845
 846         /* We use 3DES encryption also for decryption.
 847          * IV is not important for 3DES ecb
 848          */
 849         if (EVP_EncryptInit_ex(ctx, EVP_des_ede3_ecb(), NULL, key, NULL) <= 0)
 850                 goto process_cipher_des3ctr_err;
 851
 852         memcpy(ctr, iv, 8);
 853
 854         for (n = 0; n < srclen; n++) {
 855                 if (n % 8 == 0) {
 856                         if (EVP_EncryptUpdate(ctx,
 857                                         (unsigned char *)&ebuf, &unused,
 858                                         (const unsigned char *)&ctr, 8) <= 0)
 859                                 goto process_cipher_des3ctr_err;
 860                         ctr_inc(ctr);
 861                 }
 862                 dst[n] = *(src++) ^ ebuf[n % 8];
 863
 864                 l--;
 865                 if (!l) {
 866                         m = m->next;
 867                         if (m) {
 868                                 src = rte_pktmbuf_mtod(m, uint8_t *);
 869                                 l = rte_pktmbuf_data_len(m);
 870                         }
 871                 }
 872         }
 873
 874         return 0;
 875
 876 process_cipher_des3ctr_err:
 877         OPENSSL_LOG_ERR("Process openssl cipher des 3 ede ctr failed");
 878         return -EINVAL;
 879 }
 880
 881 /** Process auth/encription aes-gcm algorithm */
 882 static int
 883 process_openssl_auth_encryption_gcm(struct rte_mbuf *mbuf_src, int offset,
 884                 int srclen, uint8_t *aad, int aadlen, uint8_t *iv, int ivlen,
 885                 uint8_t *key, uint8_t *dst, uint8_t *tag,
 886                 EVP_CIPHER_CTX *ctx, const EVP_CIPHER *algo)
 887 {
 888         int len = 0, unused = 0;
 889         uint8_t empty[] = {};
 890
 891         if (EVP_EncryptInit_ex(ctx, algo, NULL, NULL, NULL) <= 0)
 892                 goto process_auth_encryption_gcm_err;
 893
 894         if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_IVLEN, ivlen, NULL) <= 0)
 895                 goto process_auth_encryption_gcm_err;
 896
 897         if (EVP_EncryptInit_ex(ctx, NULL, NULL, key, iv) <= 0)
 898                 goto process_auth_encryption_gcm_err;
 899
 900         if (aadlen > 0)
 901                 if (EVP_EncryptUpdate(ctx, NULL, &len, aad, aadlen) <= 0)
 902                         goto process_auth_encryption_gcm_err;
 903
 904         if (srclen > 0)
 905                 if (process_openssl_encryption_update(mbuf_src, offset, &dst,
 906                                 srclen, ctx))
 907                         goto process_auth_encryption_gcm_err;
 908
 909         /* Workaround open ssl bug in version less then 1.0.1f */
 910         if (EVP_EncryptUpdate(ctx, empty, &unused, empty, 0) <= 0)
 911                 goto process_auth_encryption_gcm_err;
 912
 913         if (EVP_EncryptFinal_ex(ctx, dst, &len) <= 0)
 914                 goto process_auth_encryption_gcm_err;
 915
 916         if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_GET_TAG, 16, tag) <= 0)
 917                 goto process_auth_encryption_gcm_err;
 918
 919         return 0;
 920
 921 process_auth_encryption_gcm_err:
 922         OPENSSL_LOG_ERR("Process openssl auth encryption gcm failed");
 923         return -EINVAL;
 924 }
 925
 926 static int
 927 process_openssl_auth_decryption_gcm(struct rte_mbuf *mbuf_src, int offset,
 928                 int srclen, uint8_t *aad, int aadlen, uint8_t *iv, int ivlen,
 929                 uint8_t *key, uint8_t *dst, uint8_t *tag, EVP_CIPHER_CTX *ctx,
 930                 const EVP_CIPHER *algo)
 931 {
 932         int len = 0, unused = 0;
 933         uint8_t empty[] = {};
 934
 935         if (EVP_DecryptInit_ex(ctx, algo, NULL, NULL, NULL) <= 0)
 936                 goto process_auth_decryption_gcm_err;
 937
 938         if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_IVLEN, ivlen, NULL) <= 0)
 939                 goto process_auth_decryption_gcm_err;
 940
 941         if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_TAG, 16, tag) <= 0)
 942                 goto process_auth_decryption_gcm_err;
 943
 944         if (EVP_DecryptInit_ex(ctx, NULL, NULL, key, iv) <= 0)
 945                 goto process_auth_decryption_gcm_err;
 946
 947         if (aadlen > 0)
 948                 if (EVP_DecryptUpdate(ctx, NULL, &len, aad, aadlen) <= 0)
 949                         goto process_auth_decryption_gcm_err;
 950
 951         if (srclen > 0)
 952                 if (process_openssl_decryption_update(mbuf_src, offset, &dst,
 953                                 srclen, ctx))
 954                         goto process_auth_decryption_gcm_err;
 955
 956         /* Workaround open ssl bug in version less then 1.0.1f */
 957         if (EVP_DecryptUpdate(ctx, empty, &unused, empty, 0) <= 0)
 958                 goto process_auth_decryption_gcm_err;
 959
 960         if (EVP_DecryptFinal_ex(ctx, dst, &len) <= 0)
 961                 goto process_auth_decryption_gcm_final_err;
 962
 963         return 0;
 964
 965 process_auth_decryption_gcm_err:
 966         OPENSSL_LOG_ERR("Process openssl auth description gcm failed");
 967         return -EINVAL;
 968
 969 process_auth_decryption_gcm_final_err:
 970         return -EFAULT;
 971 }
 972
 973 /** Process standard openssl auth algorithms */
 974 static int
 975 process_openssl_auth(struct rte_mbuf *mbuf_src, uint8_t *dst, int offset,
 976                 __rte_unused uint8_t *iv, __rte_unused EVP_PKEY * pkey,
 977                 int srclen, EVP_MD_CTX *ctx, const EVP_MD *algo)
 978 {
 979         size_t dstlen;
 980         struct rte_mbuf *m;
 981         int l, n = srclen;
 982         uint8_t *src;
 983
 984         for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m);
 985                         m = m->next)
 986                 offset -= rte_pktmbuf_data_len(m);
 987
 988         if (m == 0)
 989                 goto process_auth_err;
 990
 991         if (EVP_DigestInit_ex(ctx, algo, NULL) <= 0)
 992                 goto process_auth_err;
 993
 994         src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset);
 995
 996         l = rte_pktmbuf_data_len(m) - offset;
 997         if (srclen <= l) {
 998                 if (EVP_DigestUpdate(ctx, (char *)src, srclen) <= 0)
 999                         goto process_auth_err;
1000                 goto process_auth_final;
1001         }
1002
1003         if (EVP_DigestUpdate(ctx, (char *)src, l) <= 0)
1004                 goto process_auth_err;
1005
1006         n -= l;
1007
1008         for (m = m->next; (m != NULL) && (n > 0); m = m->next) {
1009                 src = rte_pktmbuf_mtod(m, uint8_t *);
1010                 l = rte_pktmbuf_data_len(m) < n ? rte_pktmbuf_data_len(m) : n;
1011                 if (EVP_DigestUpdate(ctx, (char *)src, l) <= 0)
1012                         goto process_auth_err;
1013                 n -= l;
1014         }
1015
1016 process_auth_final:
1017         if (EVP_DigestFinal_ex(ctx, dst, (unsigned int *)&dstlen) <= 0)
1018                 goto process_auth_err;
1019         return 0;
1020
1021 process_auth_err:
1022         OPENSSL_LOG_ERR("Process openssl auth failed");
1023         return -EINVAL;
1024 }
1025
1026 /** Process standard openssl auth algorithms with hmac */
1027 static int
1028 process_openssl_auth_hmac(struct rte_mbuf *mbuf_src, uint8_t *dst, int offset,
1029                 int srclen, HMAC_CTX *ctx)
1030 {
1031         unsigned int dstlen;
1032         struct rte_mbuf *m;
1033         int l, n = srclen;
1034         uint8_t *src;
1035
1036         for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m);
1037                         m = m->next)
1038                 offset -= rte_pktmbuf_data_len(m);
1039
1040         if (m == 0)
1041                 goto process_auth_err;
1042
1043         src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset);
1044
1045         l = rte_pktmbuf_data_len(m) - offset;
1046         if (srclen <= l) {
1047                 if (HMAC_Update(ctx, (unsigned char *)src, srclen) != 1)
1048                         goto process_auth_err;
1049                 goto process_auth_final;
1050         }
1051
1052         if (HMAC_Update(ctx, (unsigned char *)src, l) != 1)
1053                 goto process_auth_err;
1054
1055         n -= l;
1056
1057         for (m = m->next; (m != NULL) && (n > 0); m = m->next) {
1058                 src = rte_pktmbuf_mtod(m, uint8_t *);
1059                 l = rte_pktmbuf_data_len(m) < n ? rte_pktmbuf_data_len(m) : n;
1060                 if (HMAC_Update(ctx, (unsigned char *)src, l) != 1)
1061                         goto process_auth_err;
1062                 n -= l;
1063         }
1064
1065 process_auth_final:
1066         if (HMAC_Final(ctx, dst, &dstlen) != 1)
1067                 goto process_auth_err;
1068
1069         if (unlikely(HMAC_Init_ex(ctx, NULL, 0, NULL, NULL) != 1))
1070                 goto process_auth_err;
1071
1072         return 0;
1073
1074 process_auth_err:
1075         OPENSSL_LOG_ERR("Process openssl auth failed");
1076         return -EINVAL;
1077 }
1078
1079 /*----------------------------------------------------------------------------*/
1080
1081 /** Process auth/cipher combined operation */
1082 static void
1083 process_openssl_combined_op
1084                 (struct rte_crypto_op *op, struct openssl_session *sess,
1085                 struct rte_mbuf *mbuf_src, struct rte_mbuf *mbuf_dst)
1086 {
1087         /* cipher */
1088         uint8_t *dst = NULL, *iv, *tag, *aad;
1089         int srclen, ivlen, aadlen, status = -1;
1090         uint32_t offset;
1091
1092         /*
1093          * Segmented destination buffer is not supported for
1094          * encryption/decryption
1095          */
1096         if (!rte_pktmbuf_is_contiguous(mbuf_dst)) {
1097                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1098                 return;
1099         }
1100
1101         iv = rte_crypto_op_ctod_offset(op, uint8_t *,
1102                         sess->iv.offset);
1103         ivlen = sess->iv.length;
1104         if (sess->auth.algo == RTE_CRYPTO_AUTH_AES_GMAC) {
1105                 srclen = 0;
1106                 offset = op->sym->auth.data.offset;
1107                 aadlen = op->sym->auth.data.length;
1108                 aad = rte_pktmbuf_mtod_offset(mbuf_src, uint8_t *,
1109                                 op->sym->auth.data.offset);
1110                 tag = op->sym->auth.digest.data;
1111                 if (tag == NULL)
1112                         tag = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
1113                                 offset + aadlen);
1114         } else {
1115                 srclen = op->sym->aead.data.length;
1116                 dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
1117                                 op->sym->aead.data.offset);
1118                 offset = op->sym->aead.data.offset;
1119                 aad = op->sym->aead.aad.data;
1120                 aadlen = sess->auth.aad_length;
1121                 tag = op->sym->aead.digest.data;
1122                 if (tag == NULL)
1123                         tag = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
1124                                 offset + srclen);
1125         }
1126
1127         if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT)
1128                 status = process_openssl_auth_encryption_gcm(
1129                                 mbuf_src, offset, srclen,
1130                                 aad, aadlen, iv, ivlen, sess->cipher.key.data,
1131                                 dst, tag, sess->cipher.ctx,
1132                                 sess->cipher.evp_algo);
1133         else
1134                 status = process_openssl_auth_decryption_gcm(
1135                                 mbuf_src, offset, srclen,
1136                                 aad, aadlen, iv, ivlen, sess->cipher.key.data,
1137                                 dst, tag, sess->cipher.ctx,
1138                                 sess->cipher.evp_algo);
1139
1140         if (status != 0) {
1141                 if (status == (-EFAULT) &&
1142                                 sess->auth.operation ==
1143                                                 RTE_CRYPTO_AUTH_OP_VERIFY)
1144                         op->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
1145                 else
1146                         op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1147         }
1148 }
1149
1150 /** Process cipher operation */
1151 static void
1152 process_openssl_cipher_op
1153                 (struct rte_crypto_op *op, struct openssl_session *sess,
1154                 struct rte_mbuf *mbuf_src, struct rte_mbuf *mbuf_dst)
1155 {
1156         uint8_t *dst, *iv;
1157         int srclen, status;
1158
1159         /*
1160          * Segmented destination buffer is not supported for
1161          * encryption/decryption
1162          */
1163         if (!rte_pktmbuf_is_contiguous(mbuf_dst)) {
1164                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1165                 return;
1166         }
1167
1168         srclen = op->sym->cipher.data.length;
1169         dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
1170                         op->sym->cipher.data.offset);
1171
1172         iv = rte_crypto_op_ctod_offset(op, uint8_t *,
1173                         sess->iv.offset);
1174
1175         if (sess->cipher.mode == OPENSSL_CIPHER_LIB)
1176                 if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT)
1177                         status = process_openssl_cipher_encrypt(mbuf_src, dst,
1178                                         op->sym->cipher.data.offset, iv,
1179                                         srclen, sess->cipher.ctx);
1180                 else
1181                         status = process_openssl_cipher_decrypt(mbuf_src, dst,
1182                                         op->sym->cipher.data.offset, iv,
1183                                         srclen, sess->cipher.ctx);
1184         else
1185                 status = process_openssl_cipher_des3ctr(mbuf_src, dst,
1186                                 op->sym->cipher.data.offset, iv,
1187                                 sess->cipher.key.data, srclen,
1188                                 sess->cipher.ctx);
1189
1190         if (status != 0)
1191                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1192 }
1193
1194 /** Process cipher operation */
1195 static void
1196 process_openssl_docsis_bpi_op(struct rte_crypto_op *op,
1197                 struct openssl_session *sess, struct rte_mbuf *mbuf_src,
1198                 struct rte_mbuf *mbuf_dst)
1199 {
1200         uint8_t *src, *dst, *iv;
1201         uint8_t block_size, last_block_len;
1202         int srclen, status = 0;
1203
1204         srclen = op->sym->cipher.data.length;
1205         src = rte_pktmbuf_mtod_offset(mbuf_src, uint8_t *,
1206                         op->sym->cipher.data.offset);
1207         dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
1208                         op->sym->cipher.data.offset);
1209
1210         iv = rte_crypto_op_ctod_offset(op, uint8_t *,
1211                         sess->iv.offset);
1212
1213         block_size = DES_BLOCK_SIZE;
1214
1215         last_block_len = srclen % block_size;
1216         if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT) {
1217                 /* Encrypt only with ECB mode XOR IV */
1218                 if (srclen < block_size) {
1219                         status = process_openssl_cipher_bpi_encrypt(src, dst,
1220                                         iv, srclen,
1221                                         sess->cipher.bpi_ctx);
1222                 } else {
1223                         srclen -= last_block_len;
1224                         /* Encrypt with the block aligned stream with CBC mode */
1225                         status = process_openssl_cipher_encrypt(mbuf_src, dst,
1226                                         op->sym->cipher.data.offset, iv,
1227                                         srclen, sess->cipher.ctx);
1228                         if (last_block_len) {
1229                                 /* Point at last block */
1230                                 dst += srclen;
1231                                 /*
1232                                  * IV is the last encrypted block from
1233                                  * the previous operation
1234                                  */
1235                                 iv = dst - block_size;
1236                                 src += srclen;
1237                                 srclen = last_block_len;
1238                                 /* Encrypt the last frame with ECB mode */
1239                                 status |= process_openssl_cipher_bpi_encrypt(src,
1240                                                 dst, iv,
1241                                                 srclen, sess->cipher.bpi_ctx);
1242                         }
1243                 }
1244         } else {
1245                 /* Decrypt only with ECB mode (encrypt, as it is same operation) */
1246                 if (srclen < block_size) {
1247                         status = process_openssl_cipher_bpi_encrypt(src, dst,
1248                                         iv,
1249                                         srclen,
1250                                         sess->cipher.bpi_ctx);
1251                 } else {
1252                         if (last_block_len) {
1253                                 /* Point at last block */
1254                                 dst += srclen - last_block_len;
1255                                 src += srclen - last_block_len;
1256                                 /*
1257                                  * IV is the last full block
1258                                  */
1259                                 iv = src - block_size;
1260                                 /*
1261                                  * Decrypt the last frame with ECB mode
1262                                  * (encrypt, as it is the same operation)
1263                                  */
1264                                 status = process_openssl_cipher_bpi_encrypt(src,
1265                                                 dst, iv,
1266                                                 last_block_len, sess->cipher.bpi_ctx);
1267                                 /* Prepare parameters for CBC mode op */
1268                                 iv = rte_crypto_op_ctod_offset(op, uint8_t *,
1269                                                 sess->iv.offset);
1270                                 dst += last_block_len - srclen;
1271                                 srclen -= last_block_len;
1272                         }
1273
1274                         /* Decrypt with CBC mode */
1275                         status |= process_openssl_cipher_decrypt(mbuf_src, dst,
1276                                         op->sym->cipher.data.offset, iv,
1277                                         srclen, sess->cipher.ctx);
1278                 }
1279         }
1280
1281         if (status != 0)
1282                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1283 }
1284
1285 /** Process auth operation */
1286 static void
1287 process_openssl_auth_op
1288                 (struct rte_crypto_op *op, struct openssl_session *sess,
1289                 struct rte_mbuf *mbuf_src, struct rte_mbuf *mbuf_dst)
1290 {
1291         uint8_t *dst;
1292         int srclen, status;
1293
1294         srclen = op->sym->auth.data.length;
1295
1296         if (sess->auth.operation == RTE_CRYPTO_AUTH_OP_VERIFY)
1297                 dst = (uint8_t *)rte_pktmbuf_append(mbuf_src,
1298                                 sess->auth.digest_length);
1299         else {
1300                 dst = op->sym->auth.digest.data;
1301                 if (dst == NULL)
1302                         dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
1303                                         op->sym->auth.data.offset +
1304                                         op->sym->auth.data.length);
1305         }
1306
1307         switch (sess->auth.mode) {
1308         case OPENSSL_AUTH_AS_AUTH:
1309                 status = process_openssl_auth(mbuf_src, dst,
1310                                 op->sym->auth.data.offset, NULL, NULL, srclen,
1311                                 sess->auth.auth.ctx, sess->auth.auth.evp_algo);
1312                 break;
1313         case OPENSSL_AUTH_AS_HMAC:
1314                 status = process_openssl_auth_hmac(mbuf_src, dst,
1315                                 op->sym->auth.data.offset, srclen,
1316                                 sess->auth.hmac.ctx);
1317                 break;
1318         default:
1319                 status = -1;
1320                 break;
1321         }
1322
1323         if (sess->auth.operation == RTE_CRYPTO_AUTH_OP_VERIFY) {
1324                 if (memcmp(dst, op->sym->auth.digest.data,
1325                                 sess->auth.digest_length) != 0) {
1326                         op->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
1327                 }
1328                 /* Trim area used for digest from mbuf. */
1329                 rte_pktmbuf_trim(mbuf_src, sess->auth.digest_length);
1330         }
1331
1332         if (status != 0)
1333                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1334 }
1335
1336 /** Process crypto operation for mbuf */
1337 static int
1338 process_op(const struct openssl_qp *qp, struct rte_crypto_op *op,
1339                 struct openssl_session *sess)
1340 {
1341         struct rte_mbuf *msrc, *mdst;
1342         int retval;
1343
1344         msrc = op->sym->m_src;
1345         mdst = op->sym->m_dst ? op->sym->m_dst : op->sym->m_src;
1346
1347         op->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
1348
1349         switch (sess->chain_order) {
1350         case OPENSSL_CHAIN_ONLY_CIPHER:
1351                 process_openssl_cipher_op(op, sess, msrc, mdst);
1352                 break;
1353         case OPENSSL_CHAIN_ONLY_AUTH:
1354                 process_openssl_auth_op(op, sess, msrc, mdst);
1355                 break;
1356         case OPENSSL_CHAIN_CIPHER_AUTH:
1357                 process_openssl_cipher_op(op, sess, msrc, mdst);
1358                 process_openssl_auth_op(op, sess, mdst, mdst);
1359                 break;
1360         case OPENSSL_CHAIN_AUTH_CIPHER:
1361                 process_openssl_auth_op(op, sess, msrc, mdst);
1362                 process_openssl_cipher_op(op, sess, msrc, mdst);
1363                 break;
1364         case OPENSSL_CHAIN_COMBINED:
1365                 process_openssl_combined_op(op, sess, msrc, mdst);
1366                 break;
1367         case OPENSSL_CHAIN_CIPHER_BPI:
1368                 process_openssl_docsis_bpi_op(op, sess, msrc, mdst);
1369                 break;
1370         default:
1371                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1372                 break;
1373         }
1374
1375         /* Free session if a session-less crypto op */
1376         if (op->sess_type == RTE_CRYPTO_OP_SESSIONLESS) {
1377                 openssl_reset_session(sess);
1378                 memset(sess, 0, sizeof(struct openssl_session));
1379                 memset(op->sym->session, 0,
1380                                 rte_cryptodev_get_header_session_size());
1381                 rte_mempool_put(qp->sess_mp, sess);
1382                 rte_mempool_put(qp->sess_mp, op->sym->session);
1383                 op->sym->session = NULL;
1384         }
1385
1386         if (op->status == RTE_CRYPTO_OP_STATUS_NOT_PROCESSED)
1387                 op->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
1388
1389         if (op->status != RTE_CRYPTO_OP_STATUS_ERROR)
1390                 retval = rte_ring_enqueue(qp->processed_ops, (void *)op);
1391         else
1392                 retval = -1;
1393
1394         return retval;
1395 }
1396
1397 /*
1398  *------------------------------------------------------------------------------
1399  * PMD Framework
1400  *------------------------------------------------------------------------------
1401  */
1402
1403 /** Enqueue burst */
1404 static uint16_t
1405 openssl_pmd_enqueue_burst(void *queue_pair, struct rte_crypto_op **ops,
1406                 uint16_t nb_ops)
1407 {
1408         struct openssl_session *sess;
1409         struct openssl_qp *qp = queue_pair;
1410         int i, retval;
1411
1412         for (i = 0; i < nb_ops; i++) {
1413                 sess = get_session(qp, ops[i]);
1414                 if (unlikely(sess == NULL))
1415                         goto enqueue_err;
1416
1417                 retval = process_op(qp, ops[i], sess);
1418                 if (unlikely(retval < 0))
1419                         goto enqueue_err;
1420         }
1421
1422         qp->stats.enqueued_count += i;
1423         return i;
1424
1425 enqueue_err:
1426         qp->stats.enqueue_err_count++;
1427         return i;
1428 }
1429
1430 /** Dequeue burst */
1431 static uint16_t
1432 openssl_pmd_dequeue_burst(void *queue_pair, struct rte_crypto_op **ops,
1433                 uint16_t nb_ops)
1434 {
1435         struct openssl_qp *qp = queue_pair;
1436
1437         unsigned int nb_dequeued = 0;
1438
1439         nb_dequeued = rte_ring_dequeue_burst(qp->processed_ops,
1440                         (void **)ops, nb_ops, NULL);
1441         qp->stats.dequeued_count += nb_dequeued;
1442
1443         return nb_dequeued;
1444 }
1445
1446 /** Create OPENSSL crypto device */
1447 static int
1448 cryptodev_openssl_create(const char *name,
1449                         struct rte_vdev_device *vdev,
1450                         struct rte_crypto_vdev_init_params *init_params)
1451 {
1452         struct rte_cryptodev *dev;
1453         struct openssl_private *internals;
1454
1455         if (init_params->name[0] == '\0')
1456                 snprintf(init_params->name, sizeof(init_params->name),
1457                                 "%s", name);
1458
1459         dev = rte_cryptodev_vdev_pmd_init(init_params->name,
1460                         sizeof(struct openssl_private),
1461                         init_params->socket_id,
1462                         vdev);
1463         if (dev == NULL) {
1464                 OPENSSL_LOG_ERR("failed to create cryptodev vdev");
1465                 goto init_error;
1466         }
1467
1468         dev->driver_id = cryptodev_driver_id;
1469         dev->dev_ops = rte_openssl_pmd_ops;
1470
1471         /* register rx/tx burst functions for data path */
1472         dev->dequeue_burst = openssl_pmd_dequeue_burst;
1473         dev->enqueue_burst = openssl_pmd_enqueue_burst;
1474
1475         dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
1476                         RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING |
1477                         RTE_CRYPTODEV_FF_CPU_AESNI |
1478                         RTE_CRYPTODEV_FF_MBUF_SCATTER_GATHER;
1479
1480         /* Set vector instructions mode supported */
1481         internals = dev->data->dev_private;
1482
1483         internals->max_nb_qpairs = init_params->max_nb_queue_pairs;
1484         internals->max_nb_sessions = init_params->max_nb_sessions;
1485
1486         return 0;
1487
1488 init_error:
1489         OPENSSL_LOG_ERR("driver %s: cryptodev_openssl_create failed",
1490                         init_params->name);
1491
1492         cryptodev_openssl_remove(vdev);
1493         return -EFAULT;
1494 }
1495
1496 /** Initialise OPENSSL crypto device */
1497 static int
1498 cryptodev_openssl_probe(struct rte_vdev_device *vdev)
1499 {
1500         struct rte_crypto_vdev_init_params init_params = {
1501                 RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_QUEUE_PAIRS,
1502                 RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_SESSIONS,
1503                 rte_socket_id(),
1504                 {0}
1505         };
1506         const char *name;
1507         const char *input_args;
1508
1509         name = rte_vdev_device_name(vdev);
1510         if (name == NULL)
1511                 return -EINVAL;
1512         input_args = rte_vdev_device_args(vdev);
1513
1514         rte_cryptodev_vdev_parse_init_params(&init_params, input_args);
1515
1516         RTE_LOG(INFO, PMD, "Initialising %s on NUMA node %d\n", name,
1517                         init_params.socket_id);
1518         if (init_params.name[0] != '\0')
1519                 RTE_LOG(INFO, PMD, "  User defined name = %s\n",
1520                         init_params.name);
1521         RTE_LOG(INFO, PMD, "  Max number of queue pairs = %d\n",
1522                         init_params.max_nb_queue_pairs);
1523         RTE_LOG(INFO, PMD, "  Max number of sessions = %d\n",
1524                         init_params.max_nb_sessions);
1525
1526         return cryptodev_openssl_create(name, vdev, &init_params);
1527 }
1528
1529 /** Uninitialise OPENSSL crypto device */
1530 static int
1531 cryptodev_openssl_remove(struct rte_vdev_device *vdev)
1532 {
1533         const char *name;
1534
1535         name = rte_vdev_device_name(vdev);
1536         if (name == NULL)
1537                 return -EINVAL;
1538
1539         RTE_LOG(INFO, PMD,
1540                 "Closing OPENSSL crypto device %s on numa socket %u\n",
1541                 name, rte_socket_id());
1542
1543         return 0;
1544 }
1545
1546 static struct rte_vdev_driver cryptodev_openssl_pmd_drv = {
1547         .probe = cryptodev_openssl_probe,
1548         .remove = cryptodev_openssl_remove
1549 };
1550
1551 static struct cryptodev_driver openssl_crypto_drv;
1552
1553 RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_OPENSSL_PMD,
1554         cryptodev_openssl_pmd_drv);
1555 RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_OPENSSL_PMD,
1556         "max_nb_queue_pairs=<int> "
1557         "max_nb_sessions=<int> "
1558         "socket_id=<int>");
1559 RTE_PMD_REGISTER_CRYPTO_DRIVER(openssl_crypto_drv, cryptodev_openssl_pmd_drv,
1560                 cryptodev_driver_id);