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
 359         case RTE_CRYPTO_CIPHER_DES_CBC:
 360                 sess->cipher.algo = xform->cipher.algo;
 361                 sess->cipher.ctx = EVP_CIPHER_CTX_new();
 362                 sess->cipher.evp_algo = EVP_des_cbc();
 363
 364                 get_cipher_key(xform->cipher.key.data, sess->cipher.key.length,
 365                         sess->cipher.key.data);
 366                 if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT) {
 367                         if (EVP_EncryptInit_ex(sess->cipher.ctx,
 368                                         sess->cipher.evp_algo,
 369                                         NULL, xform->cipher.key.data,
 370                                         NULL) != 1) {
 371                                 return -EINVAL;
 372                         }
 373                 } else if (sess->cipher.direction ==
 374                                 RTE_CRYPTO_CIPHER_OP_DECRYPT) {
 375                         if (EVP_DecryptInit_ex(sess->cipher.ctx,
 376                                         sess->cipher.evp_algo,
 377                                         NULL, xform->cipher.key.data,
 378                                         NULL) != 1) {
 379                                 return -EINVAL;
 380                         }
 381                 }
 382
 383                 break;
 384
 385         case RTE_CRYPTO_CIPHER_DES_DOCSISBPI:
 386                 sess->cipher.algo = xform->cipher.algo;
 387                 sess->chain_order = OPENSSL_CHAIN_CIPHER_BPI;
 388                 sess->cipher.ctx = EVP_CIPHER_CTX_new();
 389                 sess->cipher.evp_algo = EVP_des_cbc();
 390
 391                 sess->cipher.bpi_ctx = EVP_CIPHER_CTX_new();
 392                 /* IV will be ECB encrypted whether direction is encrypt or decrypt */
 393                 if (EVP_EncryptInit_ex(sess->cipher.bpi_ctx, EVP_des_ecb(),
 394                                 NULL, xform->cipher.key.data, 0) != 1)
 395                         return -EINVAL;
 396
 397                 get_cipher_key(xform->cipher.key.data, sess->cipher.key.length,
 398                         sess->cipher.key.data);
 399                 if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT) {
 400                         if (EVP_EncryptInit_ex(sess->cipher.ctx,
 401                                         sess->cipher.evp_algo,
 402                                         NULL, xform->cipher.key.data,
 403                                         NULL) != 1) {
 404                                 return -EINVAL;
 405                         }
 406                 } else if (sess->cipher.direction ==
 407                                 RTE_CRYPTO_CIPHER_OP_DECRYPT) {
 408                         if (EVP_DecryptInit_ex(sess->cipher.ctx,
 409                                         sess->cipher.evp_algo,
 410                                         NULL, xform->cipher.key.data,
 411                                         NULL) != 1) {
 412                                 return -EINVAL;
 413                         }
 414                 }
 415
 416                 break;
 417         default:
 418                 sess->cipher.algo = RTE_CRYPTO_CIPHER_NULL;
 419                 return -ENOTSUP;
 420         }
 421
 422         return 0;
 423 }
 424
 425 /* Set session auth parameters */
 426 static int
 427 openssl_set_session_auth_parameters(struct openssl_session *sess,
 428                 const struct rte_crypto_sym_xform *xform)
 429 {
 430         /* Select auth generate/verify */
 431         sess->auth.operation = xform->auth.op;
 432         sess->auth.algo = xform->auth.algo;
 433
 434         /* Select auth algo */
 435         switch (xform->auth.algo) {
 436         case RTE_CRYPTO_AUTH_AES_GMAC:
 437                 sess->chain_order = OPENSSL_CHAIN_COMBINED;
 438
 439                 /* Set IV parameters */
 440                 sess->iv.offset = xform->auth.iv.offset;
 441                 sess->iv.length = xform->auth.iv.length;
 442
 443                 /*
 444                  * OpenSSL requires GMAC to be a GCM operation
 445                  * with no cipher data length
 446                  */
 447                 sess->cipher.mode = OPENSSL_CIPHER_LIB;
 448                 if (sess->auth.operation == RTE_CRYPTO_AUTH_OP_GENERATE)
 449                         sess->cipher.direction = RTE_CRYPTO_CIPHER_OP_ENCRYPT;
 450                 else
 451                         sess->cipher.direction = RTE_CRYPTO_CIPHER_OP_DECRYPT;
 452
 453                 sess->cipher.key.length = xform->auth.key.length;
 454                 sess->cipher.ctx = EVP_CIPHER_CTX_new();
 455
 456                 if (get_aead_algo(RTE_CRYPTO_AEAD_AES_GCM,
 457                                 sess->cipher.key.length,
 458                                 &sess->cipher.evp_algo) != 0)
 459                         return -EINVAL;
 460
 461                 get_cipher_key(xform->auth.key.data, xform->auth.key.length,
 462                         sess->cipher.key.data);
 463
 464                 break;
 465
 466         case RTE_CRYPTO_AUTH_MD5:
 467         case RTE_CRYPTO_AUTH_SHA1:
 468         case RTE_CRYPTO_AUTH_SHA224:
 469         case RTE_CRYPTO_AUTH_SHA256:
 470         case RTE_CRYPTO_AUTH_SHA384:
 471         case RTE_CRYPTO_AUTH_SHA512:
 472                 sess->auth.mode = OPENSSL_AUTH_AS_AUTH;
 473                 if (get_auth_algo(xform->auth.algo,
 474                                 &sess->auth.auth.evp_algo) != 0)
 475                         return -EINVAL;
 476                 sess->auth.auth.ctx = EVP_MD_CTX_create();
 477                 break;
 478
 479         case RTE_CRYPTO_AUTH_MD5_HMAC:
 480         case RTE_CRYPTO_AUTH_SHA1_HMAC:
 481         case RTE_CRYPTO_AUTH_SHA224_HMAC:
 482         case RTE_CRYPTO_AUTH_SHA256_HMAC:
 483         case RTE_CRYPTO_AUTH_SHA384_HMAC:
 484         case RTE_CRYPTO_AUTH_SHA512_HMAC:
 485                 sess->auth.mode = OPENSSL_AUTH_AS_HMAC;
 486                 sess->auth.hmac.ctx = HMAC_CTX_new();
 487                 if (get_auth_algo(xform->auth.algo,
 488                                 &sess->auth.hmac.evp_algo) != 0)
 489                         return -EINVAL;
 490
 491                 if (HMAC_Init_ex(sess->auth.hmac.ctx,
 492                                 xform->auth.key.data,
 493                                 xform->auth.key.length,
 494                                 sess->auth.hmac.evp_algo, NULL) != 1)
 495                         return -EINVAL;
 496                 break;
 497
 498         default:
 499                 return -ENOTSUP;
 500         }
 501
 502         sess->auth.digest_length = xform->auth.digest_length;
 503
 504         return 0;
 505 }
 506
 507 /* Set session AEAD parameters */
 508 static int
 509 openssl_set_session_aead_parameters(struct openssl_session *sess,
 510                 const struct rte_crypto_sym_xform *xform)
 511 {
 512         /* Select cipher direction */
 513         sess->cipher.direction = xform->cipher.op;
 514         /* Select cipher key */
 515         sess->cipher.key.length = xform->aead.key.length;
 516
 517         /* Set IV parameters */
 518         sess->iv.offset = xform->aead.iv.offset;
 519         sess->iv.length = xform->aead.iv.length;
 520
 521         /* Select auth generate/verify */
 522         sess->auth.operation = xform->auth.op;
 523         sess->auth.algo = xform->auth.algo;
 524
 525         /* Select auth algo */
 526         switch (xform->aead.algo) {
 527         case RTE_CRYPTO_AEAD_AES_GCM:
 528                 sess->cipher.mode = OPENSSL_CIPHER_LIB;
 529                 sess->aead_algo = xform->aead.algo;
 530                 sess->cipher.ctx = EVP_CIPHER_CTX_new();
 531
 532                 if (get_aead_algo(sess->aead_algo, sess->cipher.key.length,
 533                                 &sess->cipher.evp_algo) != 0)
 534                         return -EINVAL;
 535
 536                 get_cipher_key(xform->cipher.key.data, sess->cipher.key.length,
 537                         sess->cipher.key.data);
 538
 539                 sess->chain_order = OPENSSL_CHAIN_COMBINED;
 540                 break;
 541         default:
 542                 return -ENOTSUP;
 543         }
 544
 545         sess->auth.aad_length = xform->aead.aad_length;
 546         sess->auth.digest_length = xform->aead.digest_length;
 547
 548         return 0;
 549 }
 550
 551 /** Parse crypto xform chain and set private session parameters */
 552 int
 553 openssl_set_session_parameters(struct openssl_session *sess,
 554                 const struct rte_crypto_sym_xform *xform)
 555 {
 556         const struct rte_crypto_sym_xform *cipher_xform = NULL;
 557         const struct rte_crypto_sym_xform *auth_xform = NULL;
 558         const struct rte_crypto_sym_xform *aead_xform = NULL;
 559         int ret;
 560
 561         sess->chain_order = openssl_get_chain_order(xform);
 562         switch (sess->chain_order) {
 563         case OPENSSL_CHAIN_ONLY_CIPHER:
 564                 cipher_xform = xform;
 565                 break;
 566         case OPENSSL_CHAIN_ONLY_AUTH:
 567                 auth_xform = xform;
 568                 break;
 569         case OPENSSL_CHAIN_CIPHER_AUTH:
 570                 cipher_xform = xform;
 571                 auth_xform = xform->next;
 572                 break;
 573         case OPENSSL_CHAIN_AUTH_CIPHER:
 574                 auth_xform = xform;
 575                 cipher_xform = xform->next;
 576                 break;
 577         case OPENSSL_CHAIN_COMBINED:
 578                 aead_xform = xform;
 579                 break;
 580         default:
 581                 return -EINVAL;
 582         }
 583
 584         /* Default IV length = 0 */
 585         sess->iv.length = 0;
 586
 587         /* cipher_xform must be check before auth_xform */
 588         if (cipher_xform) {
 589                 ret = openssl_set_session_cipher_parameters(
 590                                 sess, cipher_xform);
 591                 if (ret != 0) {
 592                         OPENSSL_LOG_ERR(
 593                                 "Invalid/unsupported cipher parameters");
 594                         return ret;
 595                 }
 596         }
 597
 598         if (auth_xform) {
 599                 ret = openssl_set_session_auth_parameters(sess, auth_xform);
 600                 if (ret != 0) {
 601                         OPENSSL_LOG_ERR(
 602                                 "Invalid/unsupported auth parameters");
 603                         return ret;
 604                 }
 605         }
 606
 607         if (aead_xform) {
 608                 ret = openssl_set_session_aead_parameters(sess, aead_xform);
 609                 if (ret != 0) {
 610                         OPENSSL_LOG_ERR(
 611                                 "Invalid/unsupported AEAD parameters");
 612                         return ret;
 613                 }
 614         }
 615
 616         return 0;
 617 }
 618
 619 /** Reset private session parameters */
 620 void
 621 openssl_reset_session(struct openssl_session *sess)
 622 {
 623         EVP_CIPHER_CTX_free(sess->cipher.ctx);
 624
 625         if (sess->chain_order == OPENSSL_CHAIN_CIPHER_BPI)
 626                 EVP_CIPHER_CTX_free(sess->cipher.bpi_ctx);
 627
 628         switch (sess->auth.mode) {
 629         case OPENSSL_AUTH_AS_AUTH:
 630                 EVP_MD_CTX_destroy(sess->auth.auth.ctx);
 631                 break;
 632         case OPENSSL_AUTH_AS_HMAC:
 633                 EVP_PKEY_free(sess->auth.hmac.pkey);
 634                 HMAC_CTX_free(sess->auth.hmac.ctx);
 635                 break;
 636         default:
 637                 break;
 638         }
 639 }
 640
 641 /** Provide session for operation */
 642 static struct openssl_session *
 643 get_session(struct openssl_qp *qp, struct rte_crypto_op *op)
 644 {
 645         struct openssl_session *sess = NULL;
 646
 647         if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION) {
 648                 /* get existing session */
 649                 if (likely(op->sym->session != NULL))
 650                         sess = (struct openssl_session *)
 651                                         get_session_private_data(
 652                                         op->sym->session,
 653                                         cryptodev_driver_id);
 654         } else {
 655                 /* provide internal session */
 656                 void *_sess = NULL;
 657                 void *_sess_private_data = NULL;
 658
 659                 if (rte_mempool_get(qp->sess_mp, (void **)&_sess))
 660                         return NULL;
 661
 662                 if (rte_mempool_get(qp->sess_mp, (void **)&_sess_private_data))
 663                         return NULL;
 664
 665                 sess = (struct openssl_session *)_sess_private_data;
 666
 667                 if (unlikely(openssl_set_session_parameters(sess,
 668                                 op->sym->xform) != 0)) {
 669                         rte_mempool_put(qp->sess_mp, _sess);
 670                         rte_mempool_put(qp->sess_mp, _sess_private_data);
 671                         sess = NULL;
 672                 }
 673                 op->sym->session = (struct rte_cryptodev_sym_session *)_sess;
 674                 set_session_private_data(op->sym->session, cryptodev_driver_id,
 675                         _sess_private_data);
 676         }
 677
 678         if (sess == NULL)
 679                 op->status = RTE_CRYPTO_OP_STATUS_INVALID_SESSION;
 680
 681         return sess;
 682 }
 683
 684 /*
 685  *------------------------------------------------------------------------------
 686  * Process Operations
 687  *------------------------------------------------------------------------------
 688  */
 689 static inline int
 690 process_openssl_encryption_update(struct rte_mbuf *mbuf_src, int offset,
 691                 uint8_t **dst, int srclen, EVP_CIPHER_CTX *ctx)
 692 {
 693         struct rte_mbuf *m;
 694         int dstlen;
 695         int l, n = srclen;
 696         uint8_t *src;
 697
 698         for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m);
 699                         m = m->next)
 700                 offset -= rte_pktmbuf_data_len(m);
 701
 702         if (m == 0)
 703                 return -1;
 704
 705         src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset);
 706
 707         l = rte_pktmbuf_data_len(m) - offset;
 708         if (srclen <= l) {
 709                 if (EVP_EncryptUpdate(ctx, *dst, &dstlen, src, srclen) <= 0)
 710                         return -1;
 711                 *dst += l;
 712                 return 0;
 713         }
 714
 715         if (EVP_EncryptUpdate(ctx, *dst, &dstlen, src, l) <= 0)
 716                 return -1;
 717
 718         *dst += dstlen;
 719         n -= l;
 720
 721         for (m = m->next; (m != NULL) && (n > 0); m = m->next) {
 722                 src = rte_pktmbuf_mtod(m, uint8_t *);
 723                 l = rte_pktmbuf_data_len(m) < n ? rte_pktmbuf_data_len(m) : n;
 724                 if (EVP_EncryptUpdate(ctx, *dst, &dstlen, src, l) <= 0)
 725                         return -1;
 726                 *dst += dstlen;
 727                 n -= l;
 728         }
 729
 730         return 0;
 731 }
 732
 733 static inline int
 734 process_openssl_decryption_update(struct rte_mbuf *mbuf_src, int offset,
 735                 uint8_t **dst, int srclen, EVP_CIPHER_CTX *ctx)
 736 {
 737         struct rte_mbuf *m;
 738         int dstlen;
 739         int l, n = srclen;
 740         uint8_t *src;
 741
 742         for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m);
 743                         m = m->next)
 744                 offset -= rte_pktmbuf_data_len(m);
 745
 746         if (m == 0)
 747                 return -1;
 748
 749         src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset);
 750
 751         l = rte_pktmbuf_data_len(m) - offset;
 752         if (srclen <= l) {
 753                 if (EVP_DecryptUpdate(ctx, *dst, &dstlen, src, srclen) <= 0)
 754                         return -1;
 755                 *dst += l;
 756                 return 0;
 757         }
 758
 759         if (EVP_DecryptUpdate(ctx, *dst, &dstlen, src, l) <= 0)
 760                 return -1;
 761
 762         *dst += dstlen;
 763         n -= l;
 764
 765         for (m = m->next; (m != NULL) && (n > 0); m = m->next) {
 766                 src = rte_pktmbuf_mtod(m, uint8_t *);
 767                 l = rte_pktmbuf_data_len(m) < n ? rte_pktmbuf_data_len(m) : n;
 768                 if (EVP_DecryptUpdate(ctx, *dst, &dstlen, src, l) <= 0)
 769                         return -1;
 770                 *dst += dstlen;
 771                 n -= l;
 772         }
 773
 774         return 0;
 775 }
 776
 777 /** Process standard openssl cipher encryption */
 778 static int
 779 process_openssl_cipher_encrypt(struct rte_mbuf *mbuf_src, uint8_t *dst,
 780                 int offset, uint8_t *iv, int srclen, EVP_CIPHER_CTX *ctx)
 781 {
 782         int totlen;
 783
 784         if (EVP_EncryptInit_ex(ctx, NULL, NULL, NULL, iv) <= 0)
 785                 goto process_cipher_encrypt_err;
 786
 787         EVP_CIPHER_CTX_set_padding(ctx, 0);
 788
 789         if (process_openssl_encryption_update(mbuf_src, offset, &dst,
 790                         srclen, ctx))
 791                 goto process_cipher_encrypt_err;
 792
 793         if (EVP_EncryptFinal_ex(ctx, dst, &totlen) <= 0)
 794                 goto process_cipher_encrypt_err;
 795
 796         return 0;
 797
 798 process_cipher_encrypt_err:
 799         OPENSSL_LOG_ERR("Process openssl cipher encrypt failed");
 800         return -EINVAL;
 801 }
 802
 803 /** Process standard openssl cipher encryption */
 804 static int
 805 process_openssl_cipher_bpi_encrypt(uint8_t *src, uint8_t *dst,
 806                 uint8_t *iv, int srclen,
 807                 EVP_CIPHER_CTX *ctx)
 808 {
 809         uint8_t i;
 810         uint8_t encrypted_iv[DES_BLOCK_SIZE];
 811         int encrypted_ivlen;
 812
 813         if (EVP_EncryptUpdate(ctx, encrypted_iv, &encrypted_ivlen,
 814                         iv, DES_BLOCK_SIZE) <= 0)
 815                 goto process_cipher_encrypt_err;
 816
 817         for (i = 0; i < srclen; i++)
 818                 *(dst + i) = *(src + i) ^ (encrypted_iv[i]);
 819
 820         return 0;
 821
 822 process_cipher_encrypt_err:
 823         OPENSSL_LOG_ERR("Process openssl cipher bpi encrypt failed");
 824         return -EINVAL;
 825 }
 826 /** Process standard openssl cipher decryption */
 827 static int
 828 process_openssl_cipher_decrypt(struct rte_mbuf *mbuf_src, uint8_t *dst,
 829                 int offset, uint8_t *iv, int srclen, EVP_CIPHER_CTX *ctx)
 830 {
 831         int totlen;
 832
 833         if (EVP_DecryptInit_ex(ctx, NULL, NULL, NULL, iv) <= 0)
 834                 goto process_cipher_decrypt_err;
 835
 836         EVP_CIPHER_CTX_set_padding(ctx, 0);
 837
 838         if (process_openssl_decryption_update(mbuf_src, offset, &dst,
 839                         srclen, ctx))
 840                 goto process_cipher_decrypt_err;
 841
 842         if (EVP_DecryptFinal_ex(ctx, dst, &totlen) <= 0)
 843                 goto process_cipher_decrypt_err;
 844         return 0;
 845
 846 process_cipher_decrypt_err:
 847         OPENSSL_LOG_ERR("Process openssl cipher decrypt failed");
 848         return -EINVAL;
 849 }
 850
 851 /** Process cipher des 3 ctr encryption, decryption algorithm */
 852 static int
 853 process_openssl_cipher_des3ctr(struct rte_mbuf *mbuf_src, uint8_t *dst,
 854                 int offset, uint8_t *iv, uint8_t *key, int srclen,
 855                 EVP_CIPHER_CTX *ctx)
 856 {
 857         uint8_t ebuf[8], ctr[8];
 858         int unused, n;
 859         struct rte_mbuf *m;
 860         uint8_t *src;
 861         int l;
 862
 863         for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m);
 864                         m = m->next)
 865                 offset -= rte_pktmbuf_data_len(m);
 866
 867         if (m == 0)
 868                 goto process_cipher_des3ctr_err;
 869
 870         src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset);
 871         l = rte_pktmbuf_data_len(m) - offset;
 872
 873         /* We use 3DES encryption also for decryption.
 874          * IV is not important for 3DES ecb
 875          */
 876         if (EVP_EncryptInit_ex(ctx, EVP_des_ede3_ecb(), NULL, key, NULL) <= 0)
 877                 goto process_cipher_des3ctr_err;
 878
 879         memcpy(ctr, iv, 8);
 880
 881         for (n = 0; n < srclen; n++) {
 882                 if (n % 8 == 0) {
 883                         if (EVP_EncryptUpdate(ctx,
 884                                         (unsigned char *)&ebuf, &unused,
 885                                         (const unsigned char *)&ctr, 8) <= 0)
 886                                 goto process_cipher_des3ctr_err;
 887                         ctr_inc(ctr);
 888                 }
 889                 dst[n] = *(src++) ^ ebuf[n % 8];
 890
 891                 l--;
 892                 if (!l) {
 893                         m = m->next;
 894                         if (m) {
 895                                 src = rte_pktmbuf_mtod(m, uint8_t *);
 896                                 l = rte_pktmbuf_data_len(m);
 897                         }
 898                 }
 899         }
 900
 901         return 0;
 902
 903 process_cipher_des3ctr_err:
 904         OPENSSL_LOG_ERR("Process openssl cipher des 3 ede ctr failed");
 905         return -EINVAL;
 906 }
 907
 908 /** Process auth/encription aes-gcm algorithm */
 909 static int
 910 process_openssl_auth_encryption_gcm(struct rte_mbuf *mbuf_src, int offset,
 911                 int srclen, uint8_t *aad, int aadlen, uint8_t *iv, int ivlen,
 912                 uint8_t *key, uint8_t *dst, uint8_t *tag,
 913                 EVP_CIPHER_CTX *ctx, const EVP_CIPHER *algo)
 914 {
 915         int len = 0, unused = 0;
 916         uint8_t empty[] = {};
 917
 918         if (EVP_EncryptInit_ex(ctx, algo, NULL, NULL, NULL) <= 0)
 919                 goto process_auth_encryption_gcm_err;
 920
 921         if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_IVLEN, ivlen, NULL) <= 0)
 922                 goto process_auth_encryption_gcm_err;
 923
 924         if (EVP_EncryptInit_ex(ctx, NULL, NULL, key, iv) <= 0)
 925                 goto process_auth_encryption_gcm_err;
 926
 927         if (aadlen > 0)
 928                 if (EVP_EncryptUpdate(ctx, NULL, &len, aad, aadlen) <= 0)
 929                         goto process_auth_encryption_gcm_err;
 930
 931         if (srclen > 0)
 932                 if (process_openssl_encryption_update(mbuf_src, offset, &dst,
 933                                 srclen, ctx))
 934                         goto process_auth_encryption_gcm_err;
 935
 936         /* Workaround open ssl bug in version less then 1.0.1f */
 937         if (EVP_EncryptUpdate(ctx, empty, &unused, empty, 0) <= 0)
 938                 goto process_auth_encryption_gcm_err;
 939
 940         if (EVP_EncryptFinal_ex(ctx, dst, &len) <= 0)
 941                 goto process_auth_encryption_gcm_err;
 942
 943         if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_GET_TAG, 16, tag) <= 0)
 944                 goto process_auth_encryption_gcm_err;
 945
 946         return 0;
 947
 948 process_auth_encryption_gcm_err:
 949         OPENSSL_LOG_ERR("Process openssl auth encryption gcm failed");
 950         return -EINVAL;
 951 }
 952
 953 static int
 954 process_openssl_auth_decryption_gcm(struct rte_mbuf *mbuf_src, int offset,
 955                 int srclen, uint8_t *aad, int aadlen, uint8_t *iv, int ivlen,
 956                 uint8_t *key, uint8_t *dst, uint8_t *tag, EVP_CIPHER_CTX *ctx,
 957                 const EVP_CIPHER *algo)
 958 {
 959         int len = 0, unused = 0;
 960         uint8_t empty[] = {};
 961
 962         if (EVP_DecryptInit_ex(ctx, algo, NULL, NULL, NULL) <= 0)
 963                 goto process_auth_decryption_gcm_err;
 964
 965         if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_IVLEN, ivlen, NULL) <= 0)
 966                 goto process_auth_decryption_gcm_err;
 967
 968         if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_TAG, 16, tag) <= 0)
 969                 goto process_auth_decryption_gcm_err;
 970
 971         if (EVP_DecryptInit_ex(ctx, NULL, NULL, key, iv) <= 0)
 972                 goto process_auth_decryption_gcm_err;
 973
 974         if (aadlen > 0)
 975                 if (EVP_DecryptUpdate(ctx, NULL, &len, aad, aadlen) <= 0)
 976                         goto process_auth_decryption_gcm_err;
 977
 978         if (srclen > 0)
 979                 if (process_openssl_decryption_update(mbuf_src, offset, &dst,
 980                                 srclen, ctx))
 981                         goto process_auth_decryption_gcm_err;
 982
 983         /* Workaround open ssl bug in version less then 1.0.1f */
 984         if (EVP_DecryptUpdate(ctx, empty, &unused, empty, 0) <= 0)
 985                 goto process_auth_decryption_gcm_err;
 986
 987         if (EVP_DecryptFinal_ex(ctx, dst, &len) <= 0)
 988                 goto process_auth_decryption_gcm_final_err;
 989
 990         return 0;
 991
 992 process_auth_decryption_gcm_err:
 993         OPENSSL_LOG_ERR("Process openssl auth description gcm failed");
 994         return -EINVAL;
 995
 996 process_auth_decryption_gcm_final_err:
 997         return -EFAULT;
 998 }
 999
1000 /** Process standard openssl auth algorithms */
1001 static int
1002 process_openssl_auth(struct rte_mbuf *mbuf_src, uint8_t *dst, int offset,
1003                 __rte_unused uint8_t *iv, __rte_unused EVP_PKEY * pkey,
1004                 int srclen, EVP_MD_CTX *ctx, const EVP_MD *algo)
1005 {
1006         size_t dstlen;
1007         struct rte_mbuf *m;
1008         int l, n = srclen;
1009         uint8_t *src;
1010
1011         for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m);
1012                         m = m->next)
1013                 offset -= rte_pktmbuf_data_len(m);
1014
1015         if (m == 0)
1016                 goto process_auth_err;
1017
1018         if (EVP_DigestInit_ex(ctx, algo, NULL) <= 0)
1019                 goto process_auth_err;
1020
1021         src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset);
1022
1023         l = rte_pktmbuf_data_len(m) - offset;
1024         if (srclen <= l) {
1025                 if (EVP_DigestUpdate(ctx, (char *)src, srclen) <= 0)
1026                         goto process_auth_err;
1027                 goto process_auth_final;
1028         }
1029
1030         if (EVP_DigestUpdate(ctx, (char *)src, l) <= 0)
1031                 goto process_auth_err;
1032
1033         n -= l;
1034
1035         for (m = m->next; (m != NULL) && (n > 0); m = m->next) {
1036                 src = rte_pktmbuf_mtod(m, uint8_t *);
1037                 l = rte_pktmbuf_data_len(m) < n ? rte_pktmbuf_data_len(m) : n;
1038                 if (EVP_DigestUpdate(ctx, (char *)src, l) <= 0)
1039                         goto process_auth_err;
1040                 n -= l;
1041         }
1042
1043 process_auth_final:
1044         if (EVP_DigestFinal_ex(ctx, dst, (unsigned int *)&dstlen) <= 0)
1045                 goto process_auth_err;
1046         return 0;
1047
1048 process_auth_err:
1049         OPENSSL_LOG_ERR("Process openssl auth failed");
1050         return -EINVAL;
1051 }
1052
1053 /** Process standard openssl auth algorithms with hmac */
1054 static int
1055 process_openssl_auth_hmac(struct rte_mbuf *mbuf_src, uint8_t *dst, int offset,
1056                 int srclen, HMAC_CTX *ctx)
1057 {
1058         unsigned int dstlen;
1059         struct rte_mbuf *m;
1060         int l, n = srclen;
1061         uint8_t *src;
1062
1063         for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m);
1064                         m = m->next)
1065                 offset -= rte_pktmbuf_data_len(m);
1066
1067         if (m == 0)
1068                 goto process_auth_err;
1069
1070         src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset);
1071
1072         l = rte_pktmbuf_data_len(m) - offset;
1073         if (srclen <= l) {
1074                 if (HMAC_Update(ctx, (unsigned char *)src, srclen) != 1)
1075                         goto process_auth_err;
1076                 goto process_auth_final;
1077         }
1078
1079         if (HMAC_Update(ctx, (unsigned char *)src, l) != 1)
1080                 goto process_auth_err;
1081
1082         n -= l;
1083
1084         for (m = m->next; (m != NULL) && (n > 0); m = m->next) {
1085                 src = rte_pktmbuf_mtod(m, uint8_t *);
1086                 l = rte_pktmbuf_data_len(m) < n ? rte_pktmbuf_data_len(m) : n;
1087                 if (HMAC_Update(ctx, (unsigned char *)src, l) != 1)
1088                         goto process_auth_err;
1089                 n -= l;
1090         }
1091
1092 process_auth_final:
1093         if (HMAC_Final(ctx, dst, &dstlen) != 1)
1094                 goto process_auth_err;
1095
1096         if (unlikely(HMAC_Init_ex(ctx, NULL, 0, NULL, NULL) != 1))
1097                 goto process_auth_err;
1098
1099         return 0;
1100
1101 process_auth_err:
1102         OPENSSL_LOG_ERR("Process openssl auth failed");
1103         return -EINVAL;
1104 }
1105
1106 /*----------------------------------------------------------------------------*/
1107
1108 /** Process auth/cipher combined operation */
1109 static void
1110 process_openssl_combined_op
1111                 (struct rte_crypto_op *op, struct openssl_session *sess,
1112                 struct rte_mbuf *mbuf_src, struct rte_mbuf *mbuf_dst)
1113 {
1114         /* cipher */
1115         uint8_t *dst = NULL, *iv, *tag, *aad;
1116         int srclen, ivlen, aadlen, status = -1;
1117         uint32_t offset;
1118
1119         /*
1120          * Segmented destination buffer is not supported for
1121          * encryption/decryption
1122          */
1123         if (!rte_pktmbuf_is_contiguous(mbuf_dst)) {
1124                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1125                 return;
1126         }
1127
1128         iv = rte_crypto_op_ctod_offset(op, uint8_t *,
1129                         sess->iv.offset);
1130         ivlen = sess->iv.length;
1131         if (sess->auth.algo == RTE_CRYPTO_AUTH_AES_GMAC) {
1132                 srclen = 0;
1133                 offset = op->sym->auth.data.offset;
1134                 aadlen = op->sym->auth.data.length;
1135                 aad = rte_pktmbuf_mtod_offset(mbuf_src, uint8_t *,
1136                                 op->sym->auth.data.offset);
1137                 tag = op->sym->auth.digest.data;
1138                 if (tag == NULL)
1139                         tag = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
1140                                 offset + aadlen);
1141         } else {
1142                 srclen = op->sym->aead.data.length;
1143                 dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
1144                                 op->sym->aead.data.offset);
1145                 offset = op->sym->aead.data.offset;
1146                 aad = op->sym->aead.aad.data;
1147                 aadlen = sess->auth.aad_length;
1148                 tag = op->sym->aead.digest.data;
1149                 if (tag == NULL)
1150                         tag = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
1151                                 offset + srclen);
1152         }
1153
1154         if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT)
1155                 status = process_openssl_auth_encryption_gcm(
1156                                 mbuf_src, offset, srclen,
1157                                 aad, aadlen, iv, ivlen, sess->cipher.key.data,
1158                                 dst, tag, sess->cipher.ctx,
1159                                 sess->cipher.evp_algo);
1160         else
1161                 status = process_openssl_auth_decryption_gcm(
1162                                 mbuf_src, offset, srclen,
1163                                 aad, aadlen, iv, ivlen, sess->cipher.key.data,
1164                                 dst, tag, sess->cipher.ctx,
1165                                 sess->cipher.evp_algo);
1166
1167         if (status != 0) {
1168                 if (status == (-EFAULT) &&
1169                                 sess->auth.operation ==
1170                                                 RTE_CRYPTO_AUTH_OP_VERIFY)
1171                         op->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
1172                 else
1173                         op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1174         }
1175 }
1176
1177 /** Process cipher operation */
1178 static void
1179 process_openssl_cipher_op
1180                 (struct rte_crypto_op *op, struct openssl_session *sess,
1181                 struct rte_mbuf *mbuf_src, struct rte_mbuf *mbuf_dst)
1182 {
1183         uint8_t *dst, *iv;
1184         int srclen, status;
1185
1186         /*
1187          * Segmented destination buffer is not supported for
1188          * encryption/decryption
1189          */
1190         if (!rte_pktmbuf_is_contiguous(mbuf_dst)) {
1191                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1192                 return;
1193         }
1194
1195         srclen = op->sym->cipher.data.length;
1196         dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
1197                         op->sym->cipher.data.offset);
1198
1199         iv = rte_crypto_op_ctod_offset(op, uint8_t *,
1200                         sess->iv.offset);
1201
1202         if (sess->cipher.mode == OPENSSL_CIPHER_LIB)
1203                 if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT)
1204                         status = process_openssl_cipher_encrypt(mbuf_src, dst,
1205                                         op->sym->cipher.data.offset, iv,
1206                                         srclen, sess->cipher.ctx);
1207                 else
1208                         status = process_openssl_cipher_decrypt(mbuf_src, dst,
1209                                         op->sym->cipher.data.offset, iv,
1210                                         srclen, sess->cipher.ctx);
1211         else
1212                 status = process_openssl_cipher_des3ctr(mbuf_src, dst,
1213                                 op->sym->cipher.data.offset, iv,
1214                                 sess->cipher.key.data, srclen,
1215                                 sess->cipher.ctx);
1216
1217         if (status != 0)
1218                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1219 }
1220
1221 /** Process cipher operation */
1222 static void
1223 process_openssl_docsis_bpi_op(struct rte_crypto_op *op,
1224                 struct openssl_session *sess, struct rte_mbuf *mbuf_src,
1225                 struct rte_mbuf *mbuf_dst)
1226 {
1227         uint8_t *src, *dst, *iv;
1228         uint8_t block_size, last_block_len;
1229         int srclen, status = 0;
1230
1231         srclen = op->sym->cipher.data.length;
1232         src = rte_pktmbuf_mtod_offset(mbuf_src, uint8_t *,
1233                         op->sym->cipher.data.offset);
1234         dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
1235                         op->sym->cipher.data.offset);
1236
1237         iv = rte_crypto_op_ctod_offset(op, uint8_t *,
1238                         sess->iv.offset);
1239
1240         block_size = DES_BLOCK_SIZE;
1241
1242         last_block_len = srclen % block_size;
1243         if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT) {
1244                 /* Encrypt only with ECB mode XOR IV */
1245                 if (srclen < block_size) {
1246                         status = process_openssl_cipher_bpi_encrypt(src, dst,
1247                                         iv, srclen,
1248                                         sess->cipher.bpi_ctx);
1249                 } else {
1250                         srclen -= last_block_len;
1251                         /* Encrypt with the block aligned stream with CBC mode */
1252                         status = process_openssl_cipher_encrypt(mbuf_src, dst,
1253                                         op->sym->cipher.data.offset, iv,
1254                                         srclen, sess->cipher.ctx);
1255                         if (last_block_len) {
1256                                 /* Point at last block */
1257                                 dst += srclen;
1258                                 /*
1259                                  * IV is the last encrypted block from
1260                                  * the previous operation
1261                                  */
1262                                 iv = dst - block_size;
1263                                 src += srclen;
1264                                 srclen = last_block_len;
1265                                 /* Encrypt the last frame with ECB mode */
1266                                 status |= process_openssl_cipher_bpi_encrypt(src,
1267                                                 dst, iv,
1268                                                 srclen, sess->cipher.bpi_ctx);
1269                         }
1270                 }
1271         } else {
1272                 /* Decrypt only with ECB mode (encrypt, as it is same operation) */
1273                 if (srclen < block_size) {
1274                         status = process_openssl_cipher_bpi_encrypt(src, dst,
1275                                         iv,
1276                                         srclen,
1277                                         sess->cipher.bpi_ctx);
1278                 } else {
1279                         if (last_block_len) {
1280                                 /* Point at last block */
1281                                 dst += srclen - last_block_len;
1282                                 src += srclen - last_block_len;
1283                                 /*
1284                                  * IV is the last full block
1285                                  */
1286                                 iv = src - block_size;
1287                                 /*
1288                                  * Decrypt the last frame with ECB mode
1289                                  * (encrypt, as it is the same operation)
1290                                  */
1291                                 status = process_openssl_cipher_bpi_encrypt(src,
1292                                                 dst, iv,
1293                                                 last_block_len, sess->cipher.bpi_ctx);
1294                                 /* Prepare parameters for CBC mode op */
1295                                 iv = rte_crypto_op_ctod_offset(op, uint8_t *,
1296                                                 sess->iv.offset);
1297                                 dst += last_block_len - srclen;
1298                                 srclen -= last_block_len;
1299                         }
1300
1301                         /* Decrypt with CBC mode */
1302                         status |= process_openssl_cipher_decrypt(mbuf_src, dst,
1303                                         op->sym->cipher.data.offset, iv,
1304                                         srclen, sess->cipher.ctx);
1305                 }
1306         }
1307
1308         if (status != 0)
1309                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1310 }
1311
1312 /** Process auth operation */
1313 static void
1314 process_openssl_auth_op(struct openssl_qp *qp, struct rte_crypto_op *op,
1315                 struct openssl_session *sess, struct rte_mbuf *mbuf_src,
1316                 struct rte_mbuf *mbuf_dst)
1317 {
1318         uint8_t *dst;
1319         int srclen, status;
1320
1321         srclen = op->sym->auth.data.length;
1322
1323         if (sess->auth.operation == RTE_CRYPTO_AUTH_OP_VERIFY)
1324                 dst = qp->temp_digest;
1325         else {
1326                 dst = op->sym->auth.digest.data;
1327                 if (dst == NULL)
1328                         dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
1329                                         op->sym->auth.data.offset +
1330                                         op->sym->auth.data.length);
1331         }
1332
1333         switch (sess->auth.mode) {
1334         case OPENSSL_AUTH_AS_AUTH:
1335                 status = process_openssl_auth(mbuf_src, dst,
1336                                 op->sym->auth.data.offset, NULL, NULL, srclen,
1337                                 sess->auth.auth.ctx, sess->auth.auth.evp_algo);
1338                 break;
1339         case OPENSSL_AUTH_AS_HMAC:
1340                 status = process_openssl_auth_hmac(mbuf_src, dst,
1341                                 op->sym->auth.data.offset, srclen,
1342                                 sess->auth.hmac.ctx);
1343                 break;
1344         default:
1345                 status = -1;
1346                 break;
1347         }
1348
1349         if (sess->auth.operation == RTE_CRYPTO_AUTH_OP_VERIFY) {
1350                 if (memcmp(dst, op->sym->auth.digest.data,
1351                                 sess->auth.digest_length) != 0) {
1352                         op->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
1353                 }
1354         }
1355
1356         if (status != 0)
1357                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1358 }
1359
1360 /** Process crypto operation for mbuf */
1361 static int
1362 process_op(struct openssl_qp *qp, struct rte_crypto_op *op,
1363                 struct openssl_session *sess)
1364 {
1365         struct rte_mbuf *msrc, *mdst;
1366         int retval;
1367
1368         msrc = op->sym->m_src;
1369         mdst = op->sym->m_dst ? op->sym->m_dst : op->sym->m_src;
1370
1371         op->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
1372
1373         switch (sess->chain_order) {
1374         case OPENSSL_CHAIN_ONLY_CIPHER:
1375                 process_openssl_cipher_op(op, sess, msrc, mdst);
1376                 break;
1377         case OPENSSL_CHAIN_ONLY_AUTH:
1378                 process_openssl_auth_op(qp, op, sess, msrc, mdst);
1379                 break;
1380         case OPENSSL_CHAIN_CIPHER_AUTH:
1381                 process_openssl_cipher_op(op, sess, msrc, mdst);
1382                 process_openssl_auth_op(qp, op, sess, mdst, mdst);
1383                 break;
1384         case OPENSSL_CHAIN_AUTH_CIPHER:
1385                 process_openssl_auth_op(qp, op, sess, msrc, mdst);
1386                 process_openssl_cipher_op(op, sess, msrc, mdst);
1387                 break;
1388         case OPENSSL_CHAIN_COMBINED:
1389                 process_openssl_combined_op(op, sess, msrc, mdst);
1390                 break;
1391         case OPENSSL_CHAIN_CIPHER_BPI:
1392                 process_openssl_docsis_bpi_op(op, sess, msrc, mdst);
1393                 break;
1394         default:
1395                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1396                 break;
1397         }
1398
1399         /* Free session if a session-less crypto op */
1400         if (op->sess_type == RTE_CRYPTO_OP_SESSIONLESS) {
1401                 openssl_reset_session(sess);
1402                 memset(sess, 0, sizeof(struct openssl_session));
1403                 memset(op->sym->session, 0,
1404                                 rte_cryptodev_get_header_session_size());
1405                 rte_mempool_put(qp->sess_mp, sess);
1406                 rte_mempool_put(qp->sess_mp, op->sym->session);
1407                 op->sym->session = NULL;
1408         }
1409
1410         if (op->status == RTE_CRYPTO_OP_STATUS_NOT_PROCESSED)
1411                 op->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
1412
1413         if (op->status != RTE_CRYPTO_OP_STATUS_ERROR)
1414                 retval = rte_ring_enqueue(qp->processed_ops, (void *)op);
1415         else
1416                 retval = -1;
1417
1418         return retval;
1419 }
1420
1421 /*
1422  *------------------------------------------------------------------------------
1423  * PMD Framework
1424  *------------------------------------------------------------------------------
1425  */
1426
1427 /** Enqueue burst */
1428 static uint16_t
1429 openssl_pmd_enqueue_burst(void *queue_pair, struct rte_crypto_op **ops,
1430                 uint16_t nb_ops)
1431 {
1432         struct openssl_session *sess;
1433         struct openssl_qp *qp = queue_pair;
1434         int i, retval;
1435
1436         for (i = 0; i < nb_ops; i++) {
1437                 sess = get_session(qp, ops[i]);
1438                 if (unlikely(sess == NULL))
1439                         goto enqueue_err;
1440
1441                 retval = process_op(qp, ops[i], sess);
1442                 if (unlikely(retval < 0))
1443                         goto enqueue_err;
1444         }
1445
1446         qp->stats.enqueued_count += i;
1447         return i;
1448
1449 enqueue_err:
1450         qp->stats.enqueue_err_count++;
1451         return i;
1452 }
1453
1454 /** Dequeue burst */
1455 static uint16_t
1456 openssl_pmd_dequeue_burst(void *queue_pair, struct rte_crypto_op **ops,
1457                 uint16_t nb_ops)
1458 {
1459         struct openssl_qp *qp = queue_pair;
1460
1461         unsigned int nb_dequeued = 0;
1462
1463         nb_dequeued = rte_ring_dequeue_burst(qp->processed_ops,
1464                         (void **)ops, nb_ops, NULL);
1465         qp->stats.dequeued_count += nb_dequeued;
1466
1467         return nb_dequeued;
1468 }
1469
1470 /** Create OPENSSL crypto device */
1471 static int
1472 cryptodev_openssl_create(const char *name,
1473                         struct rte_vdev_device *vdev,
1474                         struct rte_crypto_vdev_init_params *init_params)
1475 {
1476         struct rte_cryptodev *dev;
1477         struct openssl_private *internals;
1478
1479         if (init_params->name[0] == '\0')
1480                 snprintf(init_params->name, sizeof(init_params->name),
1481                                 "%s", name);
1482
1483         dev = rte_cryptodev_vdev_pmd_init(init_params->name,
1484                         sizeof(struct openssl_private),
1485                         init_params->socket_id,
1486                         vdev);
1487         if (dev == NULL) {
1488                 OPENSSL_LOG_ERR("failed to create cryptodev vdev");
1489                 goto init_error;
1490         }
1491
1492         dev->driver_id = cryptodev_driver_id;
1493         dev->dev_ops = rte_openssl_pmd_ops;
1494
1495         /* register rx/tx burst functions for data path */
1496         dev->dequeue_burst = openssl_pmd_dequeue_burst;
1497         dev->enqueue_burst = openssl_pmd_enqueue_burst;
1498
1499         dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
1500                         RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING |
1501                         RTE_CRYPTODEV_FF_CPU_AESNI |
1502                         RTE_CRYPTODEV_FF_MBUF_SCATTER_GATHER;
1503
1504         /* Set vector instructions mode supported */
1505         internals = dev->data->dev_private;
1506
1507         internals->max_nb_qpairs = init_params->max_nb_queue_pairs;
1508         internals->max_nb_sessions = init_params->max_nb_sessions;
1509
1510         return 0;
1511
1512 init_error:
1513         OPENSSL_LOG_ERR("driver %s: cryptodev_openssl_create failed",
1514                         init_params->name);
1515
1516         cryptodev_openssl_remove(vdev);
1517         return -EFAULT;
1518 }
1519
1520 /** Initialise OPENSSL crypto device */
1521 static int
1522 cryptodev_openssl_probe(struct rte_vdev_device *vdev)
1523 {
1524         struct rte_crypto_vdev_init_params init_params = {
1525                 RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_QUEUE_PAIRS,
1526                 RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_SESSIONS,
1527                 rte_socket_id(),
1528                 {0}
1529         };
1530         const char *name;
1531         const char *input_args;
1532
1533         name = rte_vdev_device_name(vdev);
1534         if (name == NULL)
1535                 return -EINVAL;
1536         input_args = rte_vdev_device_args(vdev);
1537
1538         rte_cryptodev_vdev_parse_init_params(&init_params, input_args);
1539
1540         RTE_LOG(INFO, PMD, "Initialising %s on NUMA node %d\n", name,
1541                         init_params.socket_id);
1542         if (init_params.name[0] != '\0')
1543                 RTE_LOG(INFO, PMD, "  User defined name = %s\n",
1544                         init_params.name);
1545         RTE_LOG(INFO, PMD, "  Max number of queue pairs = %d\n",
1546                         init_params.max_nb_queue_pairs);
1547         RTE_LOG(INFO, PMD, "  Max number of sessions = %d\n",
1548                         init_params.max_nb_sessions);
1549
1550         return cryptodev_openssl_create(name, vdev, &init_params);
1551 }
1552
1553 /** Uninitialise OPENSSL crypto device */
1554 static int
1555 cryptodev_openssl_remove(struct rte_vdev_device *vdev)
1556 {
1557         const char *name;
1558
1559         name = rte_vdev_device_name(vdev);
1560         if (name == NULL)
1561                 return -EINVAL;
1562
1563         RTE_LOG(INFO, PMD,
1564                 "Closing OPENSSL crypto device %s on numa socket %u\n",
1565                 name, rte_socket_id());
1566
1567         return 0;
1568 }
1569
1570 static struct rte_vdev_driver cryptodev_openssl_pmd_drv = {
1571         .probe = cryptodev_openssl_probe,
1572         .remove = cryptodev_openssl_remove
1573 };
1574
1575 static struct cryptodev_driver openssl_crypto_drv;
1576
1577 RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_OPENSSL_PMD,
1578         cryptodev_openssl_pmd_drv);
1579 RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_OPENSSL_PMD,
1580         "max_nb_queue_pairs=<int> "
1581         "max_nb_sessions=<int> "
1582         "socket_id=<int>");
1583 RTE_PMD_REGISTER_CRYPTO_DRIVER(openssl_crypto_drv, cryptodev_openssl_pmd_drv,
1584                 cryptodev_driver_id);