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