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