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