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 and auth operation */
 513         if (xform->aead.op == RTE_CRYPTO_AEAD_OP_ENCRYPT) {
 514                 sess->cipher.direction = RTE_CRYPTO_CIPHER_OP_ENCRYPT;
 515                 sess->auth.operation = RTE_CRYPTO_AUTH_OP_GENERATE;
 516         } else {
 517                 sess->cipher.direction = RTE_CRYPTO_CIPHER_OP_DECRYPT;
 518                 sess->auth.operation = RTE_CRYPTO_AUTH_OP_VERIFY;
 519         }
 520
 521         /* Select cipher key */
 522         sess->cipher.key.length = xform->aead.key.length;
 523
 524         /* Set IV parameters */
 525         sess->iv.offset = xform->aead.iv.offset;
 526         sess->iv.length = xform->aead.iv.length;
 527
 528         /* Select auth algo */
 529         switch (xform->aead.algo) {
 530         case RTE_CRYPTO_AEAD_AES_GCM:
 531                 sess->cipher.mode = OPENSSL_CIPHER_LIB;
 532                 sess->aead_algo = xform->aead.algo;
 533                 sess->cipher.ctx = EVP_CIPHER_CTX_new();
 534
 535                 if (get_aead_algo(sess->aead_algo, sess->cipher.key.length,
 536                                 &sess->cipher.evp_algo) != 0)
 537                         return -EINVAL;
 538
 539                 get_cipher_key(xform->cipher.key.data, sess->cipher.key.length,
 540                         sess->cipher.key.data);
 541
 542                 sess->chain_order = OPENSSL_CHAIN_COMBINED;
 543                 break;
 544         default:
 545                 return -ENOTSUP;
 546         }
 547
 548         sess->auth.aad_length = xform->aead.aad_length;
 549         sess->auth.digest_length = xform->aead.digest_length;
 550
 551         return 0;
 552 }
 553
 554 /** Parse crypto xform chain and set private session parameters */
 555 int
 556 openssl_set_session_parameters(struct openssl_session *sess,
 557                 const struct rte_crypto_sym_xform *xform)
 558 {
 559         const struct rte_crypto_sym_xform *cipher_xform = NULL;
 560         const struct rte_crypto_sym_xform *auth_xform = NULL;
 561         const struct rte_crypto_sym_xform *aead_xform = NULL;
 562         int ret;
 563
 564         sess->chain_order = openssl_get_chain_order(xform);
 565         switch (sess->chain_order) {
 566         case OPENSSL_CHAIN_ONLY_CIPHER:
 567                 cipher_xform = xform;
 568                 break;
 569         case OPENSSL_CHAIN_ONLY_AUTH:
 570                 auth_xform = xform;
 571                 break;
 572         case OPENSSL_CHAIN_CIPHER_AUTH:
 573                 cipher_xform = xform;
 574                 auth_xform = xform->next;
 575                 break;
 576         case OPENSSL_CHAIN_AUTH_CIPHER:
 577                 auth_xform = xform;
 578                 cipher_xform = xform->next;
 579                 break;
 580         case OPENSSL_CHAIN_COMBINED:
 581                 aead_xform = xform;
 582                 break;
 583         default:
 584                 return -EINVAL;
 585         }
 586
 587         /* Default IV length = 0 */
 588         sess->iv.length = 0;
 589
 590         /* cipher_xform must be check before auth_xform */
 591         if (cipher_xform) {
 592                 ret = openssl_set_session_cipher_parameters(
 593                                 sess, cipher_xform);
 594                 if (ret != 0) {
 595                         OPENSSL_LOG_ERR(
 596                                 "Invalid/unsupported cipher parameters");
 597                         return ret;
 598                 }
 599         }
 600
 601         if (auth_xform) {
 602                 ret = openssl_set_session_auth_parameters(sess, auth_xform);
 603                 if (ret != 0) {
 604                         OPENSSL_LOG_ERR(
 605                                 "Invalid/unsupported auth parameters");
 606                         return ret;
 607                 }
 608         }
 609
 610         if (aead_xform) {
 611                 ret = openssl_set_session_aead_parameters(sess, aead_xform);
 612                 if (ret != 0) {
 613                         OPENSSL_LOG_ERR(
 614                                 "Invalid/unsupported AEAD parameters");
 615                         return ret;
 616                 }
 617         }
 618
 619         return 0;
 620 }
 621
 622 /** Reset private session parameters */
 623 void
 624 openssl_reset_session(struct openssl_session *sess)
 625 {
 626         EVP_CIPHER_CTX_free(sess->cipher.ctx);
 627
 628         if (sess->chain_order == OPENSSL_CHAIN_CIPHER_BPI)
 629                 EVP_CIPHER_CTX_free(sess->cipher.bpi_ctx);
 630
 631         switch (sess->auth.mode) {
 632         case OPENSSL_AUTH_AS_AUTH:
 633                 EVP_MD_CTX_destroy(sess->auth.auth.ctx);
 634                 break;
 635         case OPENSSL_AUTH_AS_HMAC:
 636                 EVP_PKEY_free(sess->auth.hmac.pkey);
 637                 HMAC_CTX_free(sess->auth.hmac.ctx);
 638                 break;
 639         default:
 640                 break;
 641         }
 642 }
 643
 644 /** Provide session for operation */
 645 static struct openssl_session *
 646 get_session(struct openssl_qp *qp, struct rte_crypto_op *op)
 647 {
 648         struct openssl_session *sess = NULL;
 649
 650         if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION) {
 651                 /* get existing session */
 652                 if (likely(op->sym->session != NULL))
 653                         sess = (struct openssl_session *)
 654                                         get_session_private_data(
 655                                         op->sym->session,
 656                                         cryptodev_driver_id);
 657         } else {
 658                 /* provide internal session */
 659                 void *_sess = NULL;
 660                 void *_sess_private_data = NULL;
 661
 662                 if (rte_mempool_get(qp->sess_mp, (void **)&_sess))
 663                         return NULL;
 664
 665                 if (rte_mempool_get(qp->sess_mp, (void **)&_sess_private_data))
 666                         return NULL;
 667
 668                 sess = (struct openssl_session *)_sess_private_data;
 669
 670                 if (unlikely(openssl_set_session_parameters(sess,
 671                                 op->sym->xform) != 0)) {
 672                         rte_mempool_put(qp->sess_mp, _sess);
 673                         rte_mempool_put(qp->sess_mp, _sess_private_data);
 674                         sess = NULL;
 675                 }
 676                 op->sym->session = (struct rte_cryptodev_sym_session *)_sess;
 677                 set_session_private_data(op->sym->session, cryptodev_driver_id,
 678                         _sess_private_data);
 679         }
 680
 681         if (sess == NULL)
 682                 op->status = RTE_CRYPTO_OP_STATUS_INVALID_SESSION;
 683
 684         return sess;
 685 }
 686
 687 /*
 688  *------------------------------------------------------------------------------
 689  * Process Operations
 690  *------------------------------------------------------------------------------
 691  */
 692 static inline int
 693 process_openssl_encryption_update(struct rte_mbuf *mbuf_src, int offset,
 694                 uint8_t **dst, int srclen, EVP_CIPHER_CTX *ctx)
 695 {
 696         struct rte_mbuf *m;
 697         int dstlen;
 698         int l, n = srclen;
 699         uint8_t *src;
 700
 701         for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m);
 702                         m = m->next)
 703                 offset -= rte_pktmbuf_data_len(m);
 704
 705         if (m == 0)
 706                 return -1;
 707
 708         src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset);
 709
 710         l = rte_pktmbuf_data_len(m) - offset;
 711         if (srclen <= l) {
 712                 if (EVP_EncryptUpdate(ctx, *dst, &dstlen, src, srclen) <= 0)
 713                         return -1;
 714                 *dst += l;
 715                 return 0;
 716         }
 717
 718         if (EVP_EncryptUpdate(ctx, *dst, &dstlen, src, l) <= 0)
 719                 return -1;
 720
 721         *dst += dstlen;
 722         n -= l;
 723
 724         for (m = m->next; (m != NULL) && (n > 0); m = m->next) {
 725                 src = rte_pktmbuf_mtod(m, uint8_t *);
 726                 l = rte_pktmbuf_data_len(m) < n ? rte_pktmbuf_data_len(m) : n;
 727                 if (EVP_EncryptUpdate(ctx, *dst, &dstlen, src, l) <= 0)
 728                         return -1;
 729                 *dst += dstlen;
 730                 n -= l;
 731         }
 732
 733         return 0;
 734 }
 735
 736 static inline int
 737 process_openssl_decryption_update(struct rte_mbuf *mbuf_src, int offset,
 738                 uint8_t **dst, int srclen, EVP_CIPHER_CTX *ctx)
 739 {
 740         struct rte_mbuf *m;
 741         int dstlen;
 742         int l, n = srclen;
 743         uint8_t *src;
 744
 745         for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m);
 746                         m = m->next)
 747                 offset -= rte_pktmbuf_data_len(m);
 748
 749         if (m == 0)
 750                 return -1;
 751
 752         src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset);
 753
 754         l = rte_pktmbuf_data_len(m) - offset;
 755         if (srclen <= l) {
 756                 if (EVP_DecryptUpdate(ctx, *dst, &dstlen, src, srclen) <= 0)
 757                         return -1;
 758                 *dst += l;
 759                 return 0;
 760         }
 761
 762         if (EVP_DecryptUpdate(ctx, *dst, &dstlen, src, l) <= 0)
 763                 return -1;
 764
 765         *dst += dstlen;
 766         n -= l;
 767
 768         for (m = m->next; (m != NULL) && (n > 0); m = m->next) {
 769                 src = rte_pktmbuf_mtod(m, uint8_t *);
 770                 l = rte_pktmbuf_data_len(m) < n ? rte_pktmbuf_data_len(m) : n;
 771                 if (EVP_DecryptUpdate(ctx, *dst, &dstlen, src, l) <= 0)
 772                         return -1;
 773                 *dst += dstlen;
 774                 n -= l;
 775         }
 776
 777         return 0;
 778 }
 779
 780 /** Process standard openssl cipher encryption */
 781 static int
 782 process_openssl_cipher_encrypt(struct rte_mbuf *mbuf_src, uint8_t *dst,
 783                 int offset, uint8_t *iv, int srclen, EVP_CIPHER_CTX *ctx)
 784 {
 785         int totlen;
 786
 787         if (EVP_EncryptInit_ex(ctx, NULL, NULL, NULL, iv) <= 0)
 788                 goto process_cipher_encrypt_err;
 789
 790         EVP_CIPHER_CTX_set_padding(ctx, 0);
 791
 792         if (process_openssl_encryption_update(mbuf_src, offset, &dst,
 793                         srclen, ctx))
 794                 goto process_cipher_encrypt_err;
 795
 796         if (EVP_EncryptFinal_ex(ctx, dst, &totlen) <= 0)
 797                 goto process_cipher_encrypt_err;
 798
 799         return 0;
 800
 801 process_cipher_encrypt_err:
 802         OPENSSL_LOG_ERR("Process openssl cipher encrypt failed");
 803         return -EINVAL;
 804 }
 805
 806 /** Process standard openssl cipher encryption */
 807 static int
 808 process_openssl_cipher_bpi_encrypt(uint8_t *src, uint8_t *dst,
 809                 uint8_t *iv, int srclen,
 810                 EVP_CIPHER_CTX *ctx)
 811 {
 812         uint8_t i;
 813         uint8_t encrypted_iv[DES_BLOCK_SIZE];
 814         int encrypted_ivlen;
 815
 816         if (EVP_EncryptUpdate(ctx, encrypted_iv, &encrypted_ivlen,
 817                         iv, DES_BLOCK_SIZE) <= 0)
 818                 goto process_cipher_encrypt_err;
 819
 820         for (i = 0; i < srclen; i++)
 821                 *(dst + i) = *(src + i) ^ (encrypted_iv[i]);
 822
 823         return 0;
 824
 825 process_cipher_encrypt_err:
 826         OPENSSL_LOG_ERR("Process openssl cipher bpi encrypt failed");
 827         return -EINVAL;
 828 }
 829 /** Process standard openssl cipher decryption */
 830 static int
 831 process_openssl_cipher_decrypt(struct rte_mbuf *mbuf_src, uint8_t *dst,
 832                 int offset, uint8_t *iv, int srclen, EVP_CIPHER_CTX *ctx)
 833 {
 834         int totlen;
 835
 836         if (EVP_DecryptInit_ex(ctx, NULL, NULL, NULL, iv) <= 0)
 837                 goto process_cipher_decrypt_err;
 838
 839         EVP_CIPHER_CTX_set_padding(ctx, 0);
 840
 841         if (process_openssl_decryption_update(mbuf_src, offset, &dst,
 842                         srclen, ctx))
 843                 goto process_cipher_decrypt_err;
 844
 845         if (EVP_DecryptFinal_ex(ctx, dst, &totlen) <= 0)
 846                 goto process_cipher_decrypt_err;
 847         return 0;
 848
 849 process_cipher_decrypt_err:
 850         OPENSSL_LOG_ERR("Process openssl cipher decrypt failed");
 851         return -EINVAL;
 852 }
 853
 854 /** Process cipher des 3 ctr encryption, decryption algorithm */
 855 static int
 856 process_openssl_cipher_des3ctr(struct rte_mbuf *mbuf_src, uint8_t *dst,
 857                 int offset, uint8_t *iv, uint8_t *key, int srclen,
 858                 EVP_CIPHER_CTX *ctx)
 859 {
 860         uint8_t ebuf[8], ctr[8];
 861         int unused, n;
 862         struct rte_mbuf *m;
 863         uint8_t *src;
 864         int l;
 865
 866         for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m);
 867                         m = m->next)
 868                 offset -= rte_pktmbuf_data_len(m);
 869
 870         if (m == 0)
 871                 goto process_cipher_des3ctr_err;
 872
 873         src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset);
 874         l = rte_pktmbuf_data_len(m) - offset;
 875
 876         /* We use 3DES encryption also for decryption.
 877          * IV is not important for 3DES ecb
 878          */
 879         if (EVP_EncryptInit_ex(ctx, EVP_des_ede3_ecb(), NULL, key, NULL) <= 0)
 880                 goto process_cipher_des3ctr_err;
 881
 882         memcpy(ctr, iv, 8);
 883
 884         for (n = 0; n < srclen; n++) {
 885                 if (n % 8 == 0) {
 886                         if (EVP_EncryptUpdate(ctx,
 887                                         (unsigned char *)&ebuf, &unused,
 888                                         (const unsigned char *)&ctr, 8) <= 0)
 889                                 goto process_cipher_des3ctr_err;
 890                         ctr_inc(ctr);
 891                 }
 892                 dst[n] = *(src++) ^ ebuf[n % 8];
 893
 894                 l--;
 895                 if (!l) {
 896                         m = m->next;
 897                         if (m) {
 898                                 src = rte_pktmbuf_mtod(m, uint8_t *);
 899                                 l = rte_pktmbuf_data_len(m);
 900                         }
 901                 }
 902         }
 903
 904         return 0;
 905
 906 process_cipher_des3ctr_err:
 907         OPENSSL_LOG_ERR("Process openssl cipher des 3 ede ctr failed");
 908         return -EINVAL;
 909 }
 910
 911 /** Process auth/encription aes-gcm algorithm */
 912 static int
 913 process_openssl_auth_encryption_gcm(struct rte_mbuf *mbuf_src, int offset,
 914                 int srclen, uint8_t *aad, int aadlen, uint8_t *iv, int ivlen,
 915                 uint8_t *key, uint8_t *dst, uint8_t *tag,
 916                 EVP_CIPHER_CTX *ctx, const EVP_CIPHER *algo)
 917 {
 918         int len = 0, unused = 0;
 919         uint8_t empty[] = {};
 920
 921         if (EVP_EncryptInit_ex(ctx, algo, NULL, NULL, NULL) <= 0)
 922                 goto process_auth_encryption_gcm_err;
 923
 924         if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_IVLEN, ivlen, NULL) <= 0)
 925                 goto process_auth_encryption_gcm_err;
 926
 927         if (EVP_EncryptInit_ex(ctx, NULL, NULL, key, iv) <= 0)
 928                 goto process_auth_encryption_gcm_err;
 929
 930         if (aadlen > 0)
 931                 if (EVP_EncryptUpdate(ctx, NULL, &len, aad, aadlen) <= 0)
 932                         goto process_auth_encryption_gcm_err;
 933
 934         if (srclen > 0)
 935                 if (process_openssl_encryption_update(mbuf_src, offset, &dst,
 936                                 srclen, ctx))
 937                         goto process_auth_encryption_gcm_err;
 938
 939         /* Workaround open ssl bug in version less then 1.0.1f */
 940         if (EVP_EncryptUpdate(ctx, empty, &unused, empty, 0) <= 0)
 941                 goto process_auth_encryption_gcm_err;
 942
 943         if (EVP_EncryptFinal_ex(ctx, dst, &len) <= 0)
 944                 goto process_auth_encryption_gcm_err;
 945
 946         if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_GET_TAG, 16, tag) <= 0)
 947                 goto process_auth_encryption_gcm_err;
 948
 949         return 0;
 950
 951 process_auth_encryption_gcm_err:
 952         OPENSSL_LOG_ERR("Process openssl auth encryption gcm failed");
 953         return -EINVAL;
 954 }
 955
 956 static int
 957 process_openssl_auth_decryption_gcm(struct rte_mbuf *mbuf_src, int offset,
 958                 int srclen, uint8_t *aad, int aadlen, uint8_t *iv, int ivlen,
 959                 uint8_t *key, uint8_t *dst, uint8_t *tag, EVP_CIPHER_CTX *ctx,
 960                 const EVP_CIPHER *algo)
 961 {
 962         int len = 0, unused = 0;
 963         uint8_t empty[] = {};
 964
 965         if (EVP_DecryptInit_ex(ctx, algo, NULL, NULL, NULL) <= 0)
 966                 goto process_auth_decryption_gcm_err;
 967
 968         if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_IVLEN, ivlen, NULL) <= 0)
 969                 goto process_auth_decryption_gcm_err;
 970
 971         if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_TAG, 16, tag) <= 0)
 972                 goto process_auth_decryption_gcm_err;
 973
 974         if (EVP_DecryptInit_ex(ctx, NULL, NULL, key, iv) <= 0)
 975                 goto process_auth_decryption_gcm_err;
 976
 977         if (aadlen > 0)
 978                 if (EVP_DecryptUpdate(ctx, NULL, &len, aad, aadlen) <= 0)
 979                         goto process_auth_decryption_gcm_err;
 980
 981         if (srclen > 0)
 982                 if (process_openssl_decryption_update(mbuf_src, offset, &dst,
 983                                 srclen, ctx))
 984                         goto process_auth_decryption_gcm_err;
 985
 986         /* Workaround open ssl bug in version less then 1.0.1f */
 987         if (EVP_DecryptUpdate(ctx, empty, &unused, empty, 0) <= 0)
 988                 goto process_auth_decryption_gcm_err;
 989
 990         if (EVP_DecryptFinal_ex(ctx, dst, &len) <= 0)
 991                 goto process_auth_decryption_gcm_final_err;
 992
 993         return 0;
 994
 995 process_auth_decryption_gcm_err:
 996         OPENSSL_LOG_ERR("Process openssl auth description gcm failed");
 997         return -EINVAL;
 998
 999 process_auth_decryption_gcm_final_err:
1000         return -EFAULT;
1001 }
1002
1003 /** Process standard openssl auth algorithms */
1004 static int
1005 process_openssl_auth(struct rte_mbuf *mbuf_src, uint8_t *dst, int offset,
1006                 __rte_unused uint8_t *iv, __rte_unused EVP_PKEY * pkey,
1007                 int srclen, EVP_MD_CTX *ctx, const EVP_MD *algo)
1008 {
1009         size_t dstlen;
1010         struct rte_mbuf *m;
1011         int l, n = srclen;
1012         uint8_t *src;
1013
1014         for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m);
1015                         m = m->next)
1016                 offset -= rte_pktmbuf_data_len(m);
1017
1018         if (m == 0)
1019                 goto process_auth_err;
1020
1021         if (EVP_DigestInit_ex(ctx, algo, NULL) <= 0)
1022                 goto process_auth_err;
1023
1024         src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset);
1025
1026         l = rte_pktmbuf_data_len(m) - offset;
1027         if (srclen <= l) {
1028                 if (EVP_DigestUpdate(ctx, (char *)src, srclen) <= 0)
1029                         goto process_auth_err;
1030                 goto process_auth_final;
1031         }
1032
1033         if (EVP_DigestUpdate(ctx, (char *)src, l) <= 0)
1034                 goto process_auth_err;
1035
1036         n -= l;
1037
1038         for (m = m->next; (m != NULL) && (n > 0); m = m->next) {
1039                 src = rte_pktmbuf_mtod(m, uint8_t *);
1040                 l = rte_pktmbuf_data_len(m) < n ? rte_pktmbuf_data_len(m) : n;
1041                 if (EVP_DigestUpdate(ctx, (char *)src, l) <= 0)
1042                         goto process_auth_err;
1043                 n -= l;
1044         }
1045
1046 process_auth_final:
1047         if (EVP_DigestFinal_ex(ctx, dst, (unsigned int *)&dstlen) <= 0)
1048                 goto process_auth_err;
1049         return 0;
1050
1051 process_auth_err:
1052         OPENSSL_LOG_ERR("Process openssl auth failed");
1053         return -EINVAL;
1054 }
1055
1056 /** Process standard openssl auth algorithms with hmac */
1057 static int
1058 process_openssl_auth_hmac(struct rte_mbuf *mbuf_src, uint8_t *dst, int offset,
1059                 int srclen, HMAC_CTX *ctx)
1060 {
1061         unsigned int dstlen;
1062         struct rte_mbuf *m;
1063         int l, n = srclen;
1064         uint8_t *src;
1065
1066         for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m);
1067                         m = m->next)
1068                 offset -= rte_pktmbuf_data_len(m);
1069
1070         if (m == 0)
1071                 goto process_auth_err;
1072
1073         src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset);
1074
1075         l = rte_pktmbuf_data_len(m) - offset;
1076         if (srclen <= l) {
1077                 if (HMAC_Update(ctx, (unsigned char *)src, srclen) != 1)
1078                         goto process_auth_err;
1079                 goto process_auth_final;
1080         }
1081
1082         if (HMAC_Update(ctx, (unsigned char *)src, l) != 1)
1083                 goto process_auth_err;
1084
1085         n -= l;
1086
1087         for (m = m->next; (m != NULL) && (n > 0); m = m->next) {
1088                 src = rte_pktmbuf_mtod(m, uint8_t *);
1089                 l = rte_pktmbuf_data_len(m) < n ? rte_pktmbuf_data_len(m) : n;
1090                 if (HMAC_Update(ctx, (unsigned char *)src, l) != 1)
1091                         goto process_auth_err;
1092                 n -= l;
1093         }
1094
1095 process_auth_final:
1096         if (HMAC_Final(ctx, dst, &dstlen) != 1)
1097                 goto process_auth_err;
1098
1099         if (unlikely(HMAC_Init_ex(ctx, NULL, 0, NULL, NULL) != 1))
1100                 goto process_auth_err;
1101
1102         return 0;
1103
1104 process_auth_err:
1105         OPENSSL_LOG_ERR("Process openssl auth failed");
1106         return -EINVAL;
1107 }
1108
1109 /*----------------------------------------------------------------------------*/
1110
1111 /** Process auth/cipher combined operation */
1112 static void
1113 process_openssl_combined_op
1114                 (struct rte_crypto_op *op, struct openssl_session *sess,
1115                 struct rte_mbuf *mbuf_src, struct rte_mbuf *mbuf_dst)
1116 {
1117         /* cipher */
1118         uint8_t *dst = NULL, *iv, *tag, *aad;
1119         int srclen, ivlen, aadlen, status = -1;
1120         uint32_t offset;
1121
1122         /*
1123          * Segmented destination buffer is not supported for
1124          * encryption/decryption
1125          */
1126         if (!rte_pktmbuf_is_contiguous(mbuf_dst)) {
1127                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1128                 return;
1129         }
1130
1131         iv = rte_crypto_op_ctod_offset(op, uint8_t *,
1132                         sess->iv.offset);
1133         ivlen = sess->iv.length;
1134         if (sess->auth.algo == RTE_CRYPTO_AUTH_AES_GMAC) {
1135                 srclen = 0;
1136                 offset = op->sym->auth.data.offset;
1137                 aadlen = op->sym->auth.data.length;
1138                 aad = rte_pktmbuf_mtod_offset(mbuf_src, uint8_t *,
1139                                 op->sym->auth.data.offset);
1140                 tag = op->sym->auth.digest.data;
1141                 if (tag == NULL)
1142                         tag = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
1143                                 offset + aadlen);
1144         } else {
1145                 srclen = op->sym->aead.data.length;
1146                 dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
1147                                 op->sym->aead.data.offset);
1148                 offset = op->sym->aead.data.offset;
1149                 aad = op->sym->aead.aad.data;
1150                 aadlen = sess->auth.aad_length;
1151                 tag = op->sym->aead.digest.data;
1152                 if (tag == NULL)
1153                         tag = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
1154                                 offset + srclen);
1155         }
1156
1157         if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT)
1158                 status = process_openssl_auth_encryption_gcm(
1159                                 mbuf_src, offset, srclen,
1160                                 aad, aadlen, iv, ivlen, sess->cipher.key.data,
1161                                 dst, tag, sess->cipher.ctx,
1162                                 sess->cipher.evp_algo);
1163         else
1164                 status = process_openssl_auth_decryption_gcm(
1165                                 mbuf_src, offset, srclen,
1166                                 aad, aadlen, iv, ivlen, sess->cipher.key.data,
1167                                 dst, tag, sess->cipher.ctx,
1168                                 sess->cipher.evp_algo);
1169
1170         if (status != 0) {
1171                 if (status == (-EFAULT) &&
1172                                 sess->auth.operation ==
1173                                                 RTE_CRYPTO_AUTH_OP_VERIFY)
1174                         op->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
1175                 else
1176                         op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1177         }
1178 }
1179
1180 /** Process cipher operation */
1181 static void
1182 process_openssl_cipher_op
1183                 (struct rte_crypto_op *op, struct openssl_session *sess,
1184                 struct rte_mbuf *mbuf_src, struct rte_mbuf *mbuf_dst)
1185 {
1186         uint8_t *dst, *iv;
1187         int srclen, status;
1188
1189         /*
1190          * Segmented destination buffer is not supported for
1191          * encryption/decryption
1192          */
1193         if (!rte_pktmbuf_is_contiguous(mbuf_dst)) {
1194                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1195                 return;
1196         }
1197
1198         srclen = op->sym->cipher.data.length;
1199         dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
1200                         op->sym->cipher.data.offset);
1201
1202         iv = rte_crypto_op_ctod_offset(op, uint8_t *,
1203                         sess->iv.offset);
1204
1205         if (sess->cipher.mode == OPENSSL_CIPHER_LIB)
1206                 if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT)
1207                         status = process_openssl_cipher_encrypt(mbuf_src, dst,
1208                                         op->sym->cipher.data.offset, iv,
1209                                         srclen, sess->cipher.ctx);
1210                 else
1211                         status = process_openssl_cipher_decrypt(mbuf_src, dst,
1212                                         op->sym->cipher.data.offset, iv,
1213                                         srclen, sess->cipher.ctx);
1214         else
1215                 status = process_openssl_cipher_des3ctr(mbuf_src, dst,
1216                                 op->sym->cipher.data.offset, iv,
1217                                 sess->cipher.key.data, srclen,
1218                                 sess->cipher.ctx);
1219
1220         if (status != 0)
1221                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1222 }
1223
1224 /** Process cipher operation */
1225 static void
1226 process_openssl_docsis_bpi_op(struct rte_crypto_op *op,
1227                 struct openssl_session *sess, struct rte_mbuf *mbuf_src,
1228                 struct rte_mbuf *mbuf_dst)
1229 {
1230         uint8_t *src, *dst, *iv;
1231         uint8_t block_size, last_block_len;
1232         int srclen, status = 0;
1233
1234         srclen = op->sym->cipher.data.length;
1235         src = rte_pktmbuf_mtod_offset(mbuf_src, uint8_t *,
1236                         op->sym->cipher.data.offset);
1237         dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
1238                         op->sym->cipher.data.offset);
1239
1240         iv = rte_crypto_op_ctod_offset(op, uint8_t *,
1241                         sess->iv.offset);
1242
1243         block_size = DES_BLOCK_SIZE;
1244
1245         last_block_len = srclen % block_size;
1246         if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT) {
1247                 /* Encrypt only with ECB mode XOR IV */
1248                 if (srclen < block_size) {
1249                         status = process_openssl_cipher_bpi_encrypt(src, dst,
1250                                         iv, srclen,
1251                                         sess->cipher.bpi_ctx);
1252                 } else {
1253                         srclen -= last_block_len;
1254                         /* Encrypt with the block aligned stream with CBC mode */
1255                         status = process_openssl_cipher_encrypt(mbuf_src, dst,
1256                                         op->sym->cipher.data.offset, iv,
1257                                         srclen, sess->cipher.ctx);
1258                         if (last_block_len) {
1259                                 /* Point at last block */
1260                                 dst += srclen;
1261                                 /*
1262                                  * IV is the last encrypted block from
1263                                  * the previous operation
1264                                  */
1265                                 iv = dst - block_size;
1266                                 src += srclen;
1267                                 srclen = last_block_len;
1268                                 /* Encrypt the last frame with ECB mode */
1269                                 status |= process_openssl_cipher_bpi_encrypt(src,
1270                                                 dst, iv,
1271                                                 srclen, sess->cipher.bpi_ctx);
1272                         }
1273                 }
1274         } else {
1275                 /* Decrypt only with ECB mode (encrypt, as it is same operation) */
1276                 if (srclen < block_size) {
1277                         status = process_openssl_cipher_bpi_encrypt(src, dst,
1278                                         iv,
1279                                         srclen,
1280                                         sess->cipher.bpi_ctx);
1281                 } else {
1282                         if (last_block_len) {
1283                                 /* Point at last block */
1284                                 dst += srclen - last_block_len;
1285                                 src += srclen - last_block_len;
1286                                 /*
1287                                  * IV is the last full block
1288                                  */
1289                                 iv = src - block_size;
1290                                 /*
1291                                  * Decrypt the last frame with ECB mode
1292                                  * (encrypt, as it is the same operation)
1293                                  */
1294                                 status = process_openssl_cipher_bpi_encrypt(src,
1295                                                 dst, iv,
1296                                                 last_block_len, sess->cipher.bpi_ctx);
1297                                 /* Prepare parameters for CBC mode op */
1298                                 iv = rte_crypto_op_ctod_offset(op, uint8_t *,
1299                                                 sess->iv.offset);
1300                                 dst += last_block_len - srclen;
1301                                 srclen -= last_block_len;
1302                         }
1303
1304                         /* Decrypt with CBC mode */
1305                         status |= process_openssl_cipher_decrypt(mbuf_src, dst,
1306                                         op->sym->cipher.data.offset, iv,
1307                                         srclen, sess->cipher.ctx);
1308                 }
1309         }
1310
1311         if (status != 0)
1312                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1313 }
1314
1315 /** Process auth operation */
1316 static void
1317 process_openssl_auth_op(struct openssl_qp *qp, struct rte_crypto_op *op,
1318                 struct openssl_session *sess, struct rte_mbuf *mbuf_src,
1319                 struct rte_mbuf *mbuf_dst)
1320 {
1321         uint8_t *dst;
1322         int srclen, status;
1323
1324         srclen = op->sym->auth.data.length;
1325
1326         if (sess->auth.operation == RTE_CRYPTO_AUTH_OP_VERIFY)
1327                 dst = qp->temp_digest;
1328         else {
1329                 dst = op->sym->auth.digest.data;
1330                 if (dst == NULL)
1331                         dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
1332                                         op->sym->auth.data.offset +
1333                                         op->sym->auth.data.length);
1334         }
1335
1336         switch (sess->auth.mode) {
1337         case OPENSSL_AUTH_AS_AUTH:
1338                 status = process_openssl_auth(mbuf_src, dst,
1339                                 op->sym->auth.data.offset, NULL, NULL, srclen,
1340                                 sess->auth.auth.ctx, sess->auth.auth.evp_algo);
1341                 break;
1342         case OPENSSL_AUTH_AS_HMAC:
1343                 status = process_openssl_auth_hmac(mbuf_src, dst,
1344                                 op->sym->auth.data.offset, srclen,
1345                                 sess->auth.hmac.ctx);
1346                 break;
1347         default:
1348                 status = -1;
1349                 break;
1350         }
1351
1352         if (sess->auth.operation == RTE_CRYPTO_AUTH_OP_VERIFY) {
1353                 if (memcmp(dst, op->sym->auth.digest.data,
1354                                 sess->auth.digest_length) != 0) {
1355                         op->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
1356                 }
1357         }
1358
1359         if (status != 0)
1360                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1361 }
1362
1363 /** Process crypto operation for mbuf */
1364 static int
1365 process_op(struct openssl_qp *qp, struct rte_crypto_op *op,
1366                 struct openssl_session *sess)
1367 {
1368         struct rte_mbuf *msrc, *mdst;
1369         int retval;
1370
1371         msrc = op->sym->m_src;
1372         mdst = op->sym->m_dst ? op->sym->m_dst : op->sym->m_src;
1373
1374         op->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
1375
1376         switch (sess->chain_order) {
1377         case OPENSSL_CHAIN_ONLY_CIPHER:
1378                 process_openssl_cipher_op(op, sess, msrc, mdst);
1379                 break;
1380         case OPENSSL_CHAIN_ONLY_AUTH:
1381                 process_openssl_auth_op(qp, op, sess, msrc, mdst);
1382                 break;
1383         case OPENSSL_CHAIN_CIPHER_AUTH:
1384                 process_openssl_cipher_op(op, sess, msrc, mdst);
1385                 process_openssl_auth_op(qp, op, sess, mdst, mdst);
1386                 break;
1387         case OPENSSL_CHAIN_AUTH_CIPHER:
1388                 process_openssl_auth_op(qp, op, sess, msrc, mdst);
1389                 process_openssl_cipher_op(op, sess, msrc, mdst);
1390                 break;
1391         case OPENSSL_CHAIN_COMBINED:
1392                 process_openssl_combined_op(op, sess, msrc, mdst);
1393                 break;
1394         case OPENSSL_CHAIN_CIPHER_BPI:
1395                 process_openssl_docsis_bpi_op(op, sess, msrc, mdst);
1396                 break;
1397         default:
1398                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1399                 break;
1400         }
1401
1402         /* Free session if a session-less crypto op */
1403         if (op->sess_type == RTE_CRYPTO_OP_SESSIONLESS) {
1404                 openssl_reset_session(sess);
1405                 memset(sess, 0, sizeof(struct openssl_session));
1406                 memset(op->sym->session, 0,
1407                                 rte_cryptodev_get_header_session_size());
1408                 rte_mempool_put(qp->sess_mp, sess);
1409                 rte_mempool_put(qp->sess_mp, op->sym->session);
1410                 op->sym->session = NULL;
1411         }
1412
1413         if (op->status == RTE_CRYPTO_OP_STATUS_NOT_PROCESSED)
1414                 op->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
1415
1416         if (op->status != RTE_CRYPTO_OP_STATUS_ERROR)
1417                 retval = rte_ring_enqueue(qp->processed_ops, (void *)op);
1418         else
1419                 retval = -1;
1420
1421         return retval;
1422 }
1423
1424 /*
1425  *------------------------------------------------------------------------------
1426  * PMD Framework
1427  *------------------------------------------------------------------------------
1428  */
1429
1430 /** Enqueue burst */
1431 static uint16_t
1432 openssl_pmd_enqueue_burst(void *queue_pair, struct rte_crypto_op **ops,
1433                 uint16_t nb_ops)
1434 {
1435         struct openssl_session *sess;
1436         struct openssl_qp *qp = queue_pair;
1437         int i, retval;
1438
1439         for (i = 0; i < nb_ops; i++) {
1440                 sess = get_session(qp, ops[i]);
1441                 if (unlikely(sess == NULL))
1442                         goto enqueue_err;
1443
1444                 retval = process_op(qp, ops[i], sess);
1445                 if (unlikely(retval < 0))
1446                         goto enqueue_err;
1447         }
1448
1449         qp->stats.enqueued_count += i;
1450         return i;
1451
1452 enqueue_err:
1453         qp->stats.enqueue_err_count++;
1454         return i;
1455 }
1456
1457 /** Dequeue burst */
1458 static uint16_t
1459 openssl_pmd_dequeue_burst(void *queue_pair, struct rte_crypto_op **ops,
1460                 uint16_t nb_ops)
1461 {
1462         struct openssl_qp *qp = queue_pair;
1463
1464         unsigned int nb_dequeued = 0;
1465
1466         nb_dequeued = rte_ring_dequeue_burst(qp->processed_ops,
1467                         (void **)ops, nb_ops, NULL);
1468         qp->stats.dequeued_count += nb_dequeued;
1469
1470         return nb_dequeued;
1471 }
1472
1473 /** Create OPENSSL crypto device */
1474 static int
1475 cryptodev_openssl_create(const char *name,
1476                         struct rte_vdev_device *vdev,
1477                         struct rte_crypto_vdev_init_params *init_params)
1478 {
1479         struct rte_cryptodev *dev;
1480         struct openssl_private *internals;
1481
1482         if (init_params->name[0] == '\0')
1483                 snprintf(init_params->name, sizeof(init_params->name),
1484                                 "%s", name);
1485
1486         dev = rte_cryptodev_vdev_pmd_init(init_params->name,
1487                         sizeof(struct openssl_private),
1488                         init_params->socket_id,
1489                         vdev);
1490         if (dev == NULL) {
1491                 OPENSSL_LOG_ERR("failed to create cryptodev vdev");
1492                 goto init_error;
1493         }
1494
1495         dev->driver_id = cryptodev_driver_id;
1496         dev->dev_ops = rte_openssl_pmd_ops;
1497
1498         /* register rx/tx burst functions for data path */
1499         dev->dequeue_burst = openssl_pmd_dequeue_burst;
1500         dev->enqueue_burst = openssl_pmd_enqueue_burst;
1501
1502         dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
1503                         RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING |
1504                         RTE_CRYPTODEV_FF_CPU_AESNI |
1505                         RTE_CRYPTODEV_FF_MBUF_SCATTER_GATHER;
1506
1507         /* Set vector instructions mode supported */
1508         internals = dev->data->dev_private;
1509
1510         internals->max_nb_qpairs = init_params->max_nb_queue_pairs;
1511         internals->max_nb_sessions = init_params->max_nb_sessions;
1512
1513         return 0;
1514
1515 init_error:
1516         OPENSSL_LOG_ERR("driver %s: cryptodev_openssl_create failed",
1517                         init_params->name);
1518
1519         cryptodev_openssl_remove(vdev);
1520         return -EFAULT;
1521 }
1522
1523 /** Initialise OPENSSL crypto device */
1524 static int
1525 cryptodev_openssl_probe(struct rte_vdev_device *vdev)
1526 {
1527         struct rte_crypto_vdev_init_params init_params = {
1528                 RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_QUEUE_PAIRS,
1529                 RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_SESSIONS,
1530                 rte_socket_id(),
1531                 {0}
1532         };
1533         const char *name;
1534         const char *input_args;
1535
1536         name = rte_vdev_device_name(vdev);
1537         if (name == NULL)
1538                 return -EINVAL;
1539         input_args = rte_vdev_device_args(vdev);
1540
1541         rte_cryptodev_vdev_parse_init_params(&init_params, input_args);
1542
1543         RTE_LOG(INFO, PMD, "Initialising %s on NUMA node %d\n", name,
1544                         init_params.socket_id);
1545         if (init_params.name[0] != '\0')
1546                 RTE_LOG(INFO, PMD, "  User defined name = %s\n",
1547                         init_params.name);
1548         RTE_LOG(INFO, PMD, "  Max number of queue pairs = %d\n",
1549                         init_params.max_nb_queue_pairs);
1550         RTE_LOG(INFO, PMD, "  Max number of sessions = %d\n",
1551                         init_params.max_nb_sessions);
1552
1553         return cryptodev_openssl_create(name, vdev, &init_params);
1554 }
1555
1556 /** Uninitialise OPENSSL crypto device */
1557 static int
1558 cryptodev_openssl_remove(struct rte_vdev_device *vdev)
1559 {
1560         const char *name;
1561
1562         name = rte_vdev_device_name(vdev);
1563         if (name == NULL)
1564                 return -EINVAL;
1565
1566         RTE_LOG(INFO, PMD,
1567                 "Closing OPENSSL crypto device %s on numa socket %u\n",
1568                 name, rte_socket_id());
1569
1570         return 0;
1571 }
1572
1573 static struct rte_vdev_driver cryptodev_openssl_pmd_drv = {
1574         .probe = cryptodev_openssl_probe,
1575         .remove = cryptodev_openssl_remove
1576 };
1577
1578 static struct cryptodev_driver openssl_crypto_drv;
1579
1580 RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_OPENSSL_PMD,
1581         cryptodev_openssl_pmd_drv);
1582 RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_OPENSSL_PMD,
1583         "max_nb_queue_pairs=<int> "
1584         "max_nb_sessions=<int> "
1585         "socket_id=<int>");
1586 RTE_PMD_REGISTER_CRYPTO_DRIVER(openssl_crypto_drv, cryptodev_openssl_pmd_drv,
1587                 cryptodev_driver_id);