drivers/crypto/openssl/rte_openssl_pmd.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2016-2017 Intel Corporation. All rights reserved.
   5  *
   6  *   Redistribution and use in source and binary forms, with or without
   7  *   modification, are permitted provided that the following conditions
   8  *   are met:
   9  *
  10  *     * Redistributions of source code must retain the above copyright
  11  *       notice, this list of conditions and the following disclaimer.
  12  *     * Redistributions in binary form must reproduce the above copyright
  13  *       notice, this list of conditions and the following disclaimer in
  14  *       the documentation and/or other materials provided with the
  15  *       distribution.
  16  *     * Neither the name of Intel Corporation nor the names of its
  17  *       contributors may be used to endorse or promote products derived
  18  *       from this software without specific prior written permission.
  19  *
  20  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  22  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  23  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  24  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  25  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  26  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  30  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 #include <rte_common.h>
  34 #include <rte_hexdump.h>
  35 #include <rte_cryptodev.h>
  36 #include <rte_cryptodev_pmd.h>
  37 #include <rte_cryptodev_vdev.h>
  38 #include <rte_vdev.h>
  39 #include <rte_malloc.h>
  40 #include <rte_cpuflags.h>
  41
  42 #include <openssl/evp.h>
  43
  44 #include "rte_openssl_pmd_private.h"
  45
  46 #define DES_BLOCK_SIZE 8
  47
  48 static int cryptodev_openssl_remove(struct rte_vdev_device *vdev);
  49
  50 /*----------------------------------------------------------------------------*/
  51
  52 /**
  53  * Increment counter by 1
  54  * Counter is 64 bit array, big-endian
  55  */
  56 static void
  57 ctr_inc(uint8_t *ctr)
  58 {
  59         uint64_t *ctr64 = (uint64_t *)ctr;
  60
  61         *ctr64 = __builtin_bswap64(*ctr64);
  62         (*ctr64)++;
  63         *ctr64 = __builtin_bswap64(*ctr64);
  64 }
  65
  66 /*
  67  *------------------------------------------------------------------------------
  68  * Session Prepare
  69  *------------------------------------------------------------------------------
  70  */
  71
  72 /** Get xform chain order */
  73 static enum openssl_chain_order
  74 openssl_get_chain_order(const struct rte_crypto_sym_xform *xform)
  75 {
  76         enum openssl_chain_order res = OPENSSL_CHAIN_NOT_SUPPORTED;
  77
  78         if (xform != NULL) {
  79                 if (xform->type == RTE_CRYPTO_SYM_XFORM_AUTH) {
  80                         if (xform->next == NULL)
  81                                 res =  OPENSSL_CHAIN_ONLY_AUTH;
  82                         else if (xform->next->type ==
  83                                         RTE_CRYPTO_SYM_XFORM_CIPHER)
  84                                 res =  OPENSSL_CHAIN_AUTH_CIPHER;
  85                 }
  86                 if (xform->type == RTE_CRYPTO_SYM_XFORM_CIPHER) {
  87                         if (xform->next == NULL)
  88                                 res =  OPENSSL_CHAIN_ONLY_CIPHER;
  89                         else if (xform->next->type == RTE_CRYPTO_SYM_XFORM_AUTH)
  90                                 res =  OPENSSL_CHAIN_CIPHER_AUTH;
  91                 }
  92         }
  93
  94         return res;
  95 }
  96
  97 /** Get session cipher key from input cipher key */
  98 static void
  99 get_cipher_key(uint8_t *input_key, int keylen, uint8_t *session_key)
 100 {
 101         memcpy(session_key, input_key, keylen);
 102 }
 103
 104 /** Get key ede 24 bytes standard from input key */
 105 static int
 106 get_cipher_key_ede(uint8_t *key, int keylen, uint8_t *key_ede)
 107 {
 108         int res = 0;
 109
 110         /* Initialize keys - 24 bytes: [key1-key2-key3] */
 111         switch (keylen) {
 112         case 24:
 113                 memcpy(key_ede, key, 24);
 114                 break;
 115         case 16:
 116                 /* K3 = K1 */
 117                 memcpy(key_ede, key, 16);
 118                 memcpy(key_ede + 16, key, 8);
 119                 break;
 120         case 8:
 121                 /* K1 = K2 = K3 (DES compatibility) */
 122                 memcpy(key_ede, key, 8);
 123                 memcpy(key_ede + 8, key, 8);
 124                 memcpy(key_ede + 16, key, 8);
 125                 break;
 126         default:
 127                 OPENSSL_LOG_ERR("Unsupported key size");
 128                 res = -EINVAL;
 129         }
 130
 131         return res;
 132 }
 133
 134 /** Get adequate openssl function for input cipher algorithm */
 135 static uint8_t
 136 get_cipher_algo(enum rte_crypto_cipher_algorithm sess_algo, size_t keylen,
 137                 const EVP_CIPHER **algo)
 138 {
 139         int res = 0;
 140
 141         if (algo != NULL) {
 142                 switch (sess_algo) {
 143                 case RTE_CRYPTO_CIPHER_3DES_CBC:
 144                         switch (keylen) {
 145                         case 16:
 146                                 *algo = EVP_des_ede_cbc();
 147                                 break;
 148                         case 24:
 149                                 *algo = EVP_des_ede3_cbc();
 150                                 break;
 151                         default:
 152                                 res = -EINVAL;
 153                         }
 154                         break;
 155                 case RTE_CRYPTO_CIPHER_3DES_CTR:
 156                         break;
 157                 case RTE_CRYPTO_CIPHER_AES_CBC:
 158                         switch (keylen) {
 159                         case 16:
 160                                 *algo = EVP_aes_128_cbc();
 161                                 break;
 162                         case 24:
 163                                 *algo = EVP_aes_192_cbc();
 164                                 break;
 165                         case 32:
 166                                 *algo = EVP_aes_256_cbc();
 167                                 break;
 168                         default:
 169                                 res = -EINVAL;
 170                         }
 171                         break;
 172                 case RTE_CRYPTO_CIPHER_AES_CTR:
 173                         switch (keylen) {
 174                         case 16:
 175                                 *algo = EVP_aes_128_ctr();
 176                                 break;
 177                         case 24:
 178                                 *algo = EVP_aes_192_ctr();
 179                                 break;
 180                         case 32:
 181                                 *algo = EVP_aes_256_ctr();
 182                                 break;
 183                         default:
 184                                 res = -EINVAL;
 185                         }
 186                         break;
 187                 case RTE_CRYPTO_CIPHER_AES_GCM:
 188                         switch (keylen) {
 189                         case 16:
 190                                 *algo = EVP_aes_128_gcm();
 191                                 break;
 192                         case 24:
 193                                 *algo = EVP_aes_192_gcm();
 194                                 break;
 195                         case 32:
 196                                 *algo = EVP_aes_256_gcm();
 197                                 break;
 198                         default:
 199                                 res = -EINVAL;
 200                         }
 201                         break;
 202                 default:
 203                         res = -EINVAL;
 204                         break;
 205                 }
 206         } else {
 207                 res = -EINVAL;
 208         }
 209
 210         return res;
 211 }
 212
 213 /** Get adequate openssl function for input auth algorithm */
 214 static uint8_t
 215 get_auth_algo(enum rte_crypto_auth_algorithm sessalgo,
 216                 const EVP_MD **algo)
 217 {
 218         int res = 0;
 219
 220         if (algo != NULL) {
 221                 switch (sessalgo) {
 222                 case RTE_CRYPTO_AUTH_MD5:
 223                 case RTE_CRYPTO_AUTH_MD5_HMAC:
 224                         *algo = EVP_md5();
 225                         break;
 226                 case RTE_CRYPTO_AUTH_SHA1:
 227                 case RTE_CRYPTO_AUTH_SHA1_HMAC:
 228                         *algo = EVP_sha1();
 229                         break;
 230                 case RTE_CRYPTO_AUTH_SHA224:
 231                 case RTE_CRYPTO_AUTH_SHA224_HMAC:
 232                         *algo = EVP_sha224();
 233                         break;
 234                 case RTE_CRYPTO_AUTH_SHA256:
 235                 case RTE_CRYPTO_AUTH_SHA256_HMAC:
 236                         *algo = EVP_sha256();
 237                         break;
 238                 case RTE_CRYPTO_AUTH_SHA384:
 239                 case RTE_CRYPTO_AUTH_SHA384_HMAC:
 240                         *algo = EVP_sha384();
 241                         break;
 242                 case RTE_CRYPTO_AUTH_SHA512:
 243                 case RTE_CRYPTO_AUTH_SHA512_HMAC:
 244                         *algo = EVP_sha512();
 245                         break;
 246                 default:
 247                         res = -EINVAL;
 248                         break;
 249                 }
 250         } else {
 251                 res = -EINVAL;
 252         }
 253
 254         return res;
 255 }
 256
 257 /** Set session cipher parameters */
 258 static int
 259 openssl_set_session_cipher_parameters(struct openssl_session *sess,
 260                 const struct rte_crypto_sym_xform *xform)
 261 {
 262         /* Select cipher direction */
 263         sess->cipher.direction = xform->cipher.op;
 264         /* Select cipher key */
 265         sess->cipher.key.length = xform->cipher.key.length;
 266
 267         /* Set IV parameters */
 268         sess->iv.offset = xform->cipher.iv.offset;
 269         sess->iv.length = xform->cipher.iv.length;
 270
 271         /* Select cipher algo */
 272         switch (xform->cipher.algo) {
 273         case RTE_CRYPTO_CIPHER_3DES_CBC:
 274         case RTE_CRYPTO_CIPHER_AES_CBC:
 275         case RTE_CRYPTO_CIPHER_AES_CTR:
 276         case RTE_CRYPTO_CIPHER_AES_GCM:
 277                 sess->cipher.mode = OPENSSL_CIPHER_LIB;
 278                 sess->cipher.algo = xform->cipher.algo;
 279                 sess->cipher.ctx = EVP_CIPHER_CTX_new();
 280
 281                 if (get_cipher_algo(sess->cipher.algo, sess->cipher.key.length,
 282                                 &sess->cipher.evp_algo) != 0)
 283                         return -EINVAL;
 284
 285                 get_cipher_key(xform->cipher.key.data, sess->cipher.key.length,
 286                         sess->cipher.key.data);
 287
 288                 break;
 289
 290         case RTE_CRYPTO_CIPHER_3DES_CTR:
 291                 sess->cipher.mode = OPENSSL_CIPHER_DES3CTR;
 292                 sess->cipher.ctx = EVP_CIPHER_CTX_new();
 293
 294                 if (get_cipher_key_ede(xform->cipher.key.data,
 295                                 sess->cipher.key.length,
 296                                 sess->cipher.key.data) != 0)
 297                         return -EINVAL;
 298                 break;
 299         case RTE_CRYPTO_CIPHER_DES_DOCSISBPI:
 300                 sess->cipher.algo = xform->cipher.algo;
 301                 sess->chain_order = OPENSSL_CHAIN_CIPHER_BPI;
 302                 sess->cipher.ctx = EVP_CIPHER_CTX_new();
 303                 sess->cipher.evp_algo = EVP_des_cbc();
 304
 305                 sess->cipher.bpi_ctx = EVP_CIPHER_CTX_new();
 306                 /* IV will be ECB encrypted whether direction is encrypt or decrypt */
 307                 if (EVP_EncryptInit_ex(sess->cipher.bpi_ctx, EVP_des_ecb(),
 308                                 NULL, xform->cipher.key.data, 0) != 1)
 309                         return -EINVAL;
 310
 311                 get_cipher_key(xform->cipher.key.data, sess->cipher.key.length,
 312                         sess->cipher.key.data);
 313                 break;
 314         default:
 315                 sess->cipher.algo = RTE_CRYPTO_CIPHER_NULL;
 316                 return -EINVAL;
 317         }
 318
 319         return 0;
 320 }
 321
 322 /* Set session auth parameters */
 323 static int
 324 openssl_set_session_auth_parameters(struct openssl_session *sess,
 325                 const struct rte_crypto_sym_xform *xform)
 326 {
 327         /* Select auth generate/verify */
 328         sess->auth.operation = xform->auth.op;
 329         sess->auth.algo = xform->auth.algo;
 330
 331         /* Select auth algo */
 332         switch (xform->auth.algo) {
 333         case RTE_CRYPTO_AUTH_AES_GMAC:
 334         case RTE_CRYPTO_AUTH_AES_GCM:
 335                 /* Check additional condition for AES_GMAC/GCM */
 336                 if (sess->cipher.algo != RTE_CRYPTO_CIPHER_AES_GCM)
 337                         return -EINVAL;
 338                 sess->chain_order = OPENSSL_CHAIN_COMBINED;
 339                 break;
 340
 341         case RTE_CRYPTO_AUTH_MD5:
 342         case RTE_CRYPTO_AUTH_SHA1:
 343         case RTE_CRYPTO_AUTH_SHA224:
 344         case RTE_CRYPTO_AUTH_SHA256:
 345         case RTE_CRYPTO_AUTH_SHA384:
 346         case RTE_CRYPTO_AUTH_SHA512:
 347                 sess->auth.mode = OPENSSL_AUTH_AS_AUTH;
 348                 if (get_auth_algo(xform->auth.algo,
 349                                 &sess->auth.auth.evp_algo) != 0)
 350                         return -EINVAL;
 351                 sess->auth.auth.ctx = EVP_MD_CTX_create();
 352                 break;
 353
 354         case RTE_CRYPTO_AUTH_MD5_HMAC:
 355         case RTE_CRYPTO_AUTH_SHA1_HMAC:
 356         case RTE_CRYPTO_AUTH_SHA224_HMAC:
 357         case RTE_CRYPTO_AUTH_SHA256_HMAC:
 358         case RTE_CRYPTO_AUTH_SHA384_HMAC:
 359         case RTE_CRYPTO_AUTH_SHA512_HMAC:
 360                 sess->auth.mode = OPENSSL_AUTH_AS_HMAC;
 361                 sess->auth.hmac.ctx = EVP_MD_CTX_create();
 362                 if (get_auth_algo(xform->auth.algo,
 363                                 &sess->auth.hmac.evp_algo) != 0)
 364                         return -EINVAL;
 365                 sess->auth.hmac.pkey = EVP_PKEY_new_mac_key(EVP_PKEY_HMAC, NULL,
 366                                 xform->auth.key.data, xform->auth.key.length);
 367                 break;
 368
 369         default:
 370                 return -EINVAL;
 371         }
 372
 373         sess->auth.aad_length = xform->auth.add_auth_data_length;
 374
 375         return 0;
 376 }
 377
 378 /** Parse crypto xform chain and set private session parameters */
 379 int
 380 openssl_set_session_parameters(struct openssl_session *sess,
 381                 const struct rte_crypto_sym_xform *xform)
 382 {
 383         const struct rte_crypto_sym_xform *cipher_xform = NULL;
 384         const struct rte_crypto_sym_xform *auth_xform = NULL;
 385
 386         sess->chain_order = openssl_get_chain_order(xform);
 387         switch (sess->chain_order) {
 388         case OPENSSL_CHAIN_ONLY_CIPHER:
 389                 cipher_xform = xform;
 390                 break;
 391         case OPENSSL_CHAIN_ONLY_AUTH:
 392                 auth_xform = xform;
 393                 break;
 394         case OPENSSL_CHAIN_CIPHER_AUTH:
 395                 cipher_xform = xform;
 396                 auth_xform = xform->next;
 397                 break;
 398         case OPENSSL_CHAIN_AUTH_CIPHER:
 399                 auth_xform = xform;
 400                 cipher_xform = xform->next;
 401                 break;
 402         default:
 403                 return -EINVAL;
 404         }
 405
 406         /* Default IV length = 0 */
 407         sess->iv.length = 0;
 408
 409         /* cipher_xform must be check before auth_xform */
 410         if (cipher_xform) {
 411                 if (openssl_set_session_cipher_parameters(
 412                                 sess, cipher_xform)) {
 413                         OPENSSL_LOG_ERR(
 414                                 "Invalid/unsupported cipher parameters");
 415                         return -EINVAL;
 416                 }
 417         }
 418
 419         if (auth_xform) {
 420                 if (openssl_set_session_auth_parameters(sess, auth_xform)) {
 421                         OPENSSL_LOG_ERR(
 422                                 "Invalid/unsupported auth parameters");
 423                         return -EINVAL;
 424                 }
 425         }
 426
 427         return 0;
 428 }
 429
 430 /** Reset private session parameters */
 431 void
 432 openssl_reset_session(struct openssl_session *sess)
 433 {
 434         EVP_CIPHER_CTX_free(sess->cipher.ctx);
 435
 436         if (sess->chain_order == OPENSSL_CHAIN_CIPHER_BPI)
 437                 EVP_CIPHER_CTX_free(sess->cipher.bpi_ctx);
 438
 439         switch (sess->auth.mode) {
 440         case OPENSSL_AUTH_AS_AUTH:
 441                 EVP_MD_CTX_destroy(sess->auth.auth.ctx);
 442                 break;
 443         case OPENSSL_AUTH_AS_HMAC:
 444                 EVP_PKEY_free(sess->auth.hmac.pkey);
 445                 EVP_MD_CTX_destroy(sess->auth.hmac.ctx);
 446                 break;
 447         default:
 448                 break;
 449         }
 450 }
 451
 452 /** Provide session for operation */
 453 static struct openssl_session *
 454 get_session(struct openssl_qp *qp, struct rte_crypto_op *op)
 455 {
 456         struct openssl_session *sess = NULL;
 457
 458         if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION) {
 459                 /* get existing session */
 460                 if (likely(op->sym->session != NULL &&
 461                                 op->sym->session->dev_type ==
 462                                 RTE_CRYPTODEV_OPENSSL_PMD))
 463                         sess = (struct openssl_session *)
 464                                 op->sym->session->_private;
 465         } else  {
 466                 /* provide internal session */
 467                 void *_sess = NULL;
 468
 469                 if (!rte_mempool_get(qp->sess_mp, (void **)&_sess)) {
 470                         sess = (struct openssl_session *)
 471                                 ((struct rte_cryptodev_sym_session *)_sess)
 472                                 ->_private;
 473
 474                         if (unlikely(openssl_set_session_parameters(
 475                                         sess, op->sym->xform) != 0)) {
 476                                 rte_mempool_put(qp->sess_mp, _sess);
 477                                 sess = NULL;
 478                         } else
 479                                 op->sym->session = _sess;
 480                 }
 481         }
 482
 483         if (sess == NULL)
 484                 op->status = RTE_CRYPTO_OP_STATUS_INVALID_SESSION;
 485
 486         return sess;
 487 }
 488
 489 /*
 490  *------------------------------------------------------------------------------
 491  * Process Operations
 492  *------------------------------------------------------------------------------
 493  */
 494 static inline int
 495 process_openssl_encryption_update(struct rte_mbuf *mbuf_src, int offset,
 496                 uint8_t **dst, int srclen, EVP_CIPHER_CTX *ctx)
 497 {
 498         struct rte_mbuf *m;
 499         int dstlen;
 500         int l, n = srclen;
 501         uint8_t *src;
 502
 503         for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m);
 504                         m = m->next)
 505                 offset -= rte_pktmbuf_data_len(m);
 506
 507         if (m == 0)
 508                 return -1;
 509
 510         src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset);
 511
 512         l = rte_pktmbuf_data_len(m) - offset;
 513         if (srclen <= l) {
 514                 if (EVP_EncryptUpdate(ctx, *dst, &dstlen, src, srclen) <= 0)
 515                         return -1;
 516                 *dst += l;
 517                 return 0;
 518         }
 519
 520         if (EVP_EncryptUpdate(ctx, *dst, &dstlen, src, l) <= 0)
 521                 return -1;
 522
 523         *dst += dstlen;
 524         n -= l;
 525
 526         for (m = m->next; (m != NULL) && (n > 0); m = m->next) {
 527                 src = rte_pktmbuf_mtod(m, uint8_t *);
 528                 l = rte_pktmbuf_data_len(m) < n ? rte_pktmbuf_data_len(m) : n;
 529                 if (EVP_EncryptUpdate(ctx, *dst, &dstlen, src, l) <= 0)
 530                         return -1;
 531                 *dst += dstlen;
 532                 n -= l;
 533         }
 534
 535         return 0;
 536 }
 537
 538 static inline int
 539 process_openssl_decryption_update(struct rte_mbuf *mbuf_src, int offset,
 540                 uint8_t **dst, int srclen, EVP_CIPHER_CTX *ctx)
 541 {
 542         struct rte_mbuf *m;
 543         int dstlen;
 544         int l, n = srclen;
 545         uint8_t *src;
 546
 547         for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m);
 548                         m = m->next)
 549                 offset -= rte_pktmbuf_data_len(m);
 550
 551         if (m == 0)
 552                 return -1;
 553
 554         src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset);
 555
 556         l = rte_pktmbuf_data_len(m) - offset;
 557         if (srclen <= l) {
 558                 if (EVP_DecryptUpdate(ctx, *dst, &dstlen, src, srclen) <= 0)
 559                         return -1;
 560                 *dst += l;
 561                 return 0;
 562         }
 563
 564         if (EVP_DecryptUpdate(ctx, *dst, &dstlen, src, l) <= 0)
 565                 return -1;
 566
 567         *dst += dstlen;
 568         n -= l;
 569
 570         for (m = m->next; (m != NULL) && (n > 0); m = m->next) {
 571                 src = rte_pktmbuf_mtod(m, uint8_t *);
 572                 l = rte_pktmbuf_data_len(m) < n ? rte_pktmbuf_data_len(m) : n;
 573                 if (EVP_DecryptUpdate(ctx, *dst, &dstlen, src, l) <= 0)
 574                         return -1;
 575                 *dst += dstlen;
 576                 n -= l;
 577         }
 578
 579         return 0;
 580 }
 581
 582 /** Process standard openssl cipher encryption */
 583 static int
 584 process_openssl_cipher_encrypt(struct rte_mbuf *mbuf_src, uint8_t *dst,
 585                 int offset, uint8_t *iv, uint8_t *key, int srclen,
 586                 EVP_CIPHER_CTX *ctx, const EVP_CIPHER *algo)
 587 {
 588         int totlen;
 589
 590         if (EVP_EncryptInit_ex(ctx, algo, NULL, key, iv) <= 0)
 591                 goto process_cipher_encrypt_err;
 592
 593         EVP_CIPHER_CTX_set_padding(ctx, 0);
 594
 595         if (process_openssl_encryption_update(mbuf_src, offset, &dst,
 596                         srclen, ctx))
 597                 goto process_cipher_encrypt_err;
 598
 599         if (EVP_EncryptFinal_ex(ctx, dst, &totlen) <= 0)
 600                 goto process_cipher_encrypt_err;
 601
 602         return 0;
 603
 604 process_cipher_encrypt_err:
 605         OPENSSL_LOG_ERR("Process openssl cipher encrypt failed");
 606         return -EINVAL;
 607 }
 608
 609 /** Process standard openssl cipher encryption */
 610 static int
 611 process_openssl_cipher_bpi_encrypt(uint8_t *src, uint8_t *dst,
 612                 uint8_t *iv, int srclen,
 613                 EVP_CIPHER_CTX *ctx)
 614 {
 615         uint8_t i;
 616         uint8_t encrypted_iv[DES_BLOCK_SIZE];
 617         int encrypted_ivlen;
 618
 619         if (EVP_EncryptUpdate(ctx, encrypted_iv, &encrypted_ivlen,
 620                         iv, DES_BLOCK_SIZE) <= 0)
 621                 goto process_cipher_encrypt_err;
 622
 623         for (i = 0; i < srclen; i++)
 624                 *(dst + i) = *(src + i) ^ (encrypted_iv[i]);
 625
 626         return 0;
 627
 628 process_cipher_encrypt_err:
 629         OPENSSL_LOG_ERR("Process openssl cipher bpi encrypt failed");
 630         return -EINVAL;
 631 }
 632 /** Process standard openssl cipher decryption */
 633 static int
 634 process_openssl_cipher_decrypt(struct rte_mbuf *mbuf_src, uint8_t *dst,
 635                 int offset, uint8_t *iv, uint8_t *key, int srclen,
 636                 EVP_CIPHER_CTX *ctx, const EVP_CIPHER *algo)
 637 {
 638         int totlen;
 639
 640         if (EVP_DecryptInit_ex(ctx, algo, NULL, key, iv) <= 0)
 641                 goto process_cipher_decrypt_err;
 642
 643         EVP_CIPHER_CTX_set_padding(ctx, 0);
 644
 645         if (process_openssl_decryption_update(mbuf_src, offset, &dst,
 646                         srclen, ctx))
 647                 goto process_cipher_decrypt_err;
 648
 649         if (EVP_DecryptFinal_ex(ctx, dst, &totlen) <= 0)
 650                 goto process_cipher_decrypt_err;
 651         return 0;
 652
 653 process_cipher_decrypt_err:
 654         OPENSSL_LOG_ERR("Process openssl cipher decrypt failed");
 655         return -EINVAL;
 656 }
 657
 658 /** Process cipher des 3 ctr encryption, decryption algorithm */
 659 static int
 660 process_openssl_cipher_des3ctr(struct rte_mbuf *mbuf_src, uint8_t *dst,
 661                 int offset, uint8_t *iv, uint8_t *key, int srclen,
 662                 EVP_CIPHER_CTX *ctx)
 663 {
 664         uint8_t ebuf[8], ctr[8];
 665         int unused, n;
 666         struct rte_mbuf *m;
 667         uint8_t *src;
 668         int l;
 669
 670         for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m);
 671                         m = m->next)
 672                 offset -= rte_pktmbuf_data_len(m);
 673
 674         if (m == 0)
 675                 goto process_cipher_des3ctr_err;
 676
 677         src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset);
 678         l = rte_pktmbuf_data_len(m) - offset;
 679
 680         /* We use 3DES encryption also for decryption.
 681          * IV is not important for 3DES ecb
 682          */
 683         if (EVP_EncryptInit_ex(ctx, EVP_des_ede3_ecb(), NULL, key, NULL) <= 0)
 684                 goto process_cipher_des3ctr_err;
 685
 686         memcpy(ctr, iv, 8);
 687
 688         for (n = 0; n < srclen; n++) {
 689                 if (n % 8 == 0) {
 690                         if (EVP_EncryptUpdate(ctx,
 691                                         (unsigned char *)&ebuf, &unused,
 692                                         (const unsigned char *)&ctr, 8) <= 0)
 693                                 goto process_cipher_des3ctr_err;
 694                         ctr_inc(ctr);
 695                 }
 696                 dst[n] = *(src++) ^ ebuf[n % 8];
 697
 698                 l--;
 699                 if (!l) {
 700                         m = m->next;
 701                         if (m) {
 702                                 src = rte_pktmbuf_mtod(m, uint8_t *);
 703                                 l = rte_pktmbuf_data_len(m);
 704                         }
 705                 }
 706         }
 707
 708         return 0;
 709
 710 process_cipher_des3ctr_err:
 711         OPENSSL_LOG_ERR("Process openssl cipher des 3 ede ctr failed");
 712         return -EINVAL;
 713 }
 714
 715 /** Process auth/encription aes-gcm algorithm */
 716 static int
 717 process_openssl_auth_encryption_gcm(struct rte_mbuf *mbuf_src, int offset,
 718                 int srclen, uint8_t *aad, int aadlen, uint8_t *iv, int ivlen,
 719                 uint8_t *key, uint8_t *dst, uint8_t *tag,
 720                 EVP_CIPHER_CTX *ctx, const EVP_CIPHER *algo)
 721 {
 722         int len = 0, unused = 0;
 723         uint8_t empty[] = {};
 724
 725         if (EVP_EncryptInit_ex(ctx, algo, NULL, NULL, NULL) <= 0)
 726                 goto process_auth_encryption_gcm_err;
 727
 728         if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_IVLEN, ivlen, NULL) <= 0)
 729                 goto process_auth_encryption_gcm_err;
 730
 731         if (EVP_EncryptInit_ex(ctx, NULL, NULL, key, iv) <= 0)
 732                 goto process_auth_encryption_gcm_err;
 733
 734         if (aadlen > 0)
 735                 if (EVP_EncryptUpdate(ctx, NULL, &len, aad, aadlen) <= 0)
 736                         goto process_auth_encryption_gcm_err;
 737
 738         if (srclen > 0)
 739                 if (process_openssl_encryption_update(mbuf_src, offset, &dst,
 740                                 srclen, ctx))
 741                         goto process_auth_encryption_gcm_err;
 742
 743         /* Workaround open ssl bug in version less then 1.0.1f */
 744         if (EVP_EncryptUpdate(ctx, empty, &unused, empty, 0) <= 0)
 745                 goto process_auth_encryption_gcm_err;
 746
 747         if (EVP_EncryptFinal_ex(ctx, dst, &len) <= 0)
 748                 goto process_auth_encryption_gcm_err;
 749
 750         if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_GET_TAG, 16, tag) <= 0)
 751                 goto process_auth_encryption_gcm_err;
 752
 753         return 0;
 754
 755 process_auth_encryption_gcm_err:
 756         OPENSSL_LOG_ERR("Process openssl auth encryption gcm failed");
 757         return -EINVAL;
 758 }
 759
 760 static int
 761 process_openssl_auth_decryption_gcm(struct rte_mbuf *mbuf_src, int offset,
 762                 int srclen, uint8_t *aad, int aadlen, uint8_t *iv, int ivlen,
 763                 uint8_t *key, uint8_t *dst, uint8_t *tag, EVP_CIPHER_CTX *ctx,
 764                 const EVP_CIPHER *algo)
 765 {
 766         int len = 0, unused = 0;
 767         uint8_t empty[] = {};
 768
 769         if (EVP_DecryptInit_ex(ctx, algo, NULL, NULL, NULL) <= 0)
 770                 goto process_auth_decryption_gcm_err;
 771
 772         if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_IVLEN, ivlen, NULL) <= 0)
 773                 goto process_auth_decryption_gcm_err;
 774
 775         if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_TAG, 16, tag) <= 0)
 776                 goto process_auth_decryption_gcm_err;
 777
 778         if (EVP_DecryptInit_ex(ctx, NULL, NULL, key, iv) <= 0)
 779                 goto process_auth_decryption_gcm_err;
 780
 781         if (aadlen > 0)
 782                 if (EVP_DecryptUpdate(ctx, NULL, &len, aad, aadlen) <= 0)
 783                         goto process_auth_decryption_gcm_err;
 784
 785         if (srclen > 0)
 786                 if (process_openssl_decryption_update(mbuf_src, offset, &dst,
 787                                 srclen, ctx))
 788                         goto process_auth_decryption_gcm_err;
 789
 790         /* Workaround open ssl bug in version less then 1.0.1f */
 791         if (EVP_DecryptUpdate(ctx, empty, &unused, empty, 0) <= 0)
 792                 goto process_auth_decryption_gcm_err;
 793
 794         if (EVP_DecryptFinal_ex(ctx, dst, &len) <= 0)
 795                 goto process_auth_decryption_gcm_final_err;
 796
 797         return 0;
 798
 799 process_auth_decryption_gcm_err:
 800         OPENSSL_LOG_ERR("Process openssl auth description gcm failed");
 801         return -EINVAL;
 802
 803 process_auth_decryption_gcm_final_err:
 804         return -EFAULT;
 805 }
 806
 807 /** Process standard openssl auth algorithms */
 808 static int
 809 process_openssl_auth(struct rte_mbuf *mbuf_src, uint8_t *dst, int offset,
 810                 __rte_unused uint8_t *iv, __rte_unused EVP_PKEY * pkey,
 811                 int srclen, EVP_MD_CTX *ctx, const EVP_MD *algo)
 812 {
 813         size_t dstlen;
 814         struct rte_mbuf *m;
 815         int l, n = srclen;
 816         uint8_t *src;
 817
 818         for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m);
 819                         m = m->next)
 820                 offset -= rte_pktmbuf_data_len(m);
 821
 822         if (m == 0)
 823                 goto process_auth_err;
 824
 825         if (EVP_DigestInit_ex(ctx, algo, NULL) <= 0)
 826                 goto process_auth_err;
 827
 828         src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset);
 829
 830         l = rte_pktmbuf_data_len(m) - offset;
 831         if (srclen <= l) {
 832                 if (EVP_DigestUpdate(ctx, (char *)src, srclen) <= 0)
 833                         goto process_auth_err;
 834                 goto process_auth_final;
 835         }
 836
 837         if (EVP_DigestUpdate(ctx, (char *)src, l) <= 0)
 838                 goto process_auth_err;
 839
 840         n -= l;
 841
 842         for (m = m->next; (m != NULL) && (n > 0); m = m->next) {
 843                 src = rte_pktmbuf_mtod(m, uint8_t *);
 844                 l = rte_pktmbuf_data_len(m) < n ? rte_pktmbuf_data_len(m) : n;
 845                 if (EVP_DigestUpdate(ctx, (char *)src, l) <= 0)
 846                         goto process_auth_err;
 847                 n -= l;
 848         }
 849
 850 process_auth_final:
 851         if (EVP_DigestFinal_ex(ctx, dst, (unsigned int *)&dstlen) <= 0)
 852                 goto process_auth_err;
 853         return 0;
 854
 855 process_auth_err:
 856         OPENSSL_LOG_ERR("Process openssl auth failed");
 857         return -EINVAL;
 858 }
 859
 860 /** Process standard openssl auth algorithms with hmac */
 861 static int
 862 process_openssl_auth_hmac(struct rte_mbuf *mbuf_src, uint8_t *dst, int offset,
 863                 __rte_unused uint8_t *iv, EVP_PKEY *pkey,
 864                 int srclen, EVP_MD_CTX *ctx, const EVP_MD *algo)
 865 {
 866         size_t dstlen;
 867         struct rte_mbuf *m;
 868         int l, n = srclen;
 869         uint8_t *src;
 870
 871         for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m);
 872                         m = m->next)
 873                 offset -= rte_pktmbuf_data_len(m);
 874
 875         if (m == 0)
 876                 goto process_auth_err;
 877
 878         if (EVP_DigestSignInit(ctx, NULL, algo, NULL, pkey) <= 0)
 879                 goto process_auth_err;
 880
 881         src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset);
 882
 883         l = rte_pktmbuf_data_len(m) - offset;
 884         if (srclen <= l) {
 885                 if (EVP_DigestSignUpdate(ctx, (char *)src, srclen) <= 0)
 886                         goto process_auth_err;
 887                 goto process_auth_final;
 888         }
 889
 890         if (EVP_DigestSignUpdate(ctx, (char *)src, l) <= 0)
 891                 goto process_auth_err;
 892
 893         n -= l;
 894
 895         for (m = m->next; (m != NULL) && (n > 0); m = m->next) {
 896                 src = rte_pktmbuf_mtod(m, uint8_t *);
 897                 l = rte_pktmbuf_data_len(m) < n ? rte_pktmbuf_data_len(m) : n;
 898                 if (EVP_DigestSignUpdate(ctx, (char *)src, l) <= 0)
 899                         goto process_auth_err;
 900                 n -= l;
 901         }
 902
 903 process_auth_final:
 904         if (EVP_DigestSignFinal(ctx, dst, &dstlen) <= 0)
 905                 goto process_auth_err;
 906
 907         return 0;
 908
 909 process_auth_err:
 910         OPENSSL_LOG_ERR("Process openssl auth failed");
 911         return -EINVAL;
 912 }
 913
 914 /*----------------------------------------------------------------------------*/
 915
 916 /** Process auth/cipher combined operation */
 917 static void
 918 process_openssl_combined_op
 919                 (struct rte_crypto_op *op, struct openssl_session *sess,
 920                 struct rte_mbuf *mbuf_src, struct rte_mbuf *mbuf_dst)
 921 {
 922         /* cipher */
 923         uint8_t *dst = NULL, *iv, *tag, *aad;
 924         int srclen, ivlen, aadlen, status = -1;
 925
 926         /*
 927          * Segmented destination buffer is not supported for
 928          * encryption/decryption
 929          */
 930         if (!rte_pktmbuf_is_contiguous(mbuf_dst)) {
 931                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
 932                 return;
 933         }
 934
 935         iv = rte_crypto_op_ctod_offset(op, uint8_t *,
 936                         sess->iv.offset);
 937         ivlen = sess->iv.length;
 938         aad = op->sym->auth.aad.data;
 939         aadlen = sess->auth.aad_length;
 940
 941         tag = op->sym->auth.digest.data;
 942         if (tag == NULL)
 943                 tag = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
 944                                 op->sym->cipher.data.offset +
 945                                 op->sym->cipher.data.length);
 946
 947         if (sess->auth.algo == RTE_CRYPTO_AUTH_AES_GMAC)
 948                 srclen = 0;
 949         else {
 950                 srclen = op->sym->cipher.data.length;
 951                 dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
 952                                 op->sym->cipher.data.offset);
 953         }
 954
 955         if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT)
 956                 status = process_openssl_auth_encryption_gcm(
 957                                 mbuf_src, op->sym->cipher.data.offset, srclen,
 958                                 aad, aadlen, iv, ivlen, sess->cipher.key.data,
 959                                 dst, tag, sess->cipher.ctx,
 960                                 sess->cipher.evp_algo);
 961         else
 962                 status = process_openssl_auth_decryption_gcm(
 963                                 mbuf_src, op->sym->cipher.data.offset, srclen,
 964                                 aad, aadlen, iv, ivlen, sess->cipher.key.data,
 965                                 dst, tag, sess->cipher.ctx,
 966                                 sess->cipher.evp_algo);
 967
 968         if (status != 0) {
 969                 if (status == (-EFAULT) &&
 970                                 sess->auth.operation ==
 971                                                 RTE_CRYPTO_AUTH_OP_VERIFY)
 972                         op->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
 973                 else
 974                         op->status = RTE_CRYPTO_OP_STATUS_ERROR;
 975         }
 976 }
 977
 978 /** Process cipher operation */
 979 static void
 980 process_openssl_cipher_op
 981                 (struct rte_crypto_op *op, struct openssl_session *sess,
 982                 struct rte_mbuf *mbuf_src, struct rte_mbuf *mbuf_dst)
 983 {
 984         uint8_t *dst, *iv;
 985         int srclen, status;
 986
 987         /*
 988          * Segmented destination buffer is not supported for
 989          * encryption/decryption
 990          */
 991         if (!rte_pktmbuf_is_contiguous(mbuf_dst)) {
 992                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
 993                 return;
 994         }
 995
 996         srclen = op->sym->cipher.data.length;
 997         dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
 998                         op->sym->cipher.data.offset);
 999
1000         iv = rte_crypto_op_ctod_offset(op, uint8_t *,
1001                         sess->iv.offset);
1002
1003         if (sess->cipher.mode == OPENSSL_CIPHER_LIB)
1004                 if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT)
1005                         status = process_openssl_cipher_encrypt(mbuf_src, dst,
1006                                         op->sym->cipher.data.offset, iv,
1007                                         sess->cipher.key.data, srclen,
1008                                         sess->cipher.ctx,
1009                                         sess->cipher.evp_algo);
1010                 else
1011                         status = process_openssl_cipher_decrypt(mbuf_src, dst,
1012                                         op->sym->cipher.data.offset, iv,
1013                                         sess->cipher.key.data, srclen,
1014                                         sess->cipher.ctx,
1015                                         sess->cipher.evp_algo);
1016         else
1017                 status = process_openssl_cipher_des3ctr(mbuf_src, dst,
1018                                 op->sym->cipher.data.offset, iv,
1019                                 sess->cipher.key.data, srclen,
1020                                 sess->cipher.ctx);
1021
1022         if (status != 0)
1023                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1024 }
1025
1026 /** Process cipher operation */
1027 static void
1028 process_openssl_docsis_bpi_op(struct rte_crypto_op *op,
1029                 struct openssl_session *sess, struct rte_mbuf *mbuf_src,
1030                 struct rte_mbuf *mbuf_dst)
1031 {
1032         uint8_t *src, *dst, *iv;
1033         uint8_t block_size, last_block_len;
1034         int srclen, status = 0;
1035
1036         srclen = op->sym->cipher.data.length;
1037         src = rte_pktmbuf_mtod_offset(mbuf_src, uint8_t *,
1038                         op->sym->cipher.data.offset);
1039         dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
1040                         op->sym->cipher.data.offset);
1041
1042         iv = rte_crypto_op_ctod_offset(op, uint8_t *,
1043                         sess->iv.offset);
1044
1045         block_size = DES_BLOCK_SIZE;
1046
1047         last_block_len = srclen % block_size;
1048         if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT) {
1049                 /* Encrypt only with ECB mode XOR IV */
1050                 if (srclen < block_size) {
1051                         status = process_openssl_cipher_bpi_encrypt(src, dst,
1052                                         iv, srclen,
1053                                         sess->cipher.bpi_ctx);
1054                 } else {
1055                         srclen -= last_block_len;
1056                         /* Encrypt with the block aligned stream with CBC mode */
1057                         status = process_openssl_cipher_encrypt(mbuf_src, dst,
1058                                         op->sym->cipher.data.offset, iv,
1059                                         sess->cipher.key.data, srclen,
1060                                         sess->cipher.ctx, sess->cipher.evp_algo);
1061                         if (last_block_len) {
1062                                 /* Point at last block */
1063                                 dst += srclen;
1064                                 /*
1065                                  * IV is the last encrypted block from
1066                                  * the previous operation
1067                                  */
1068                                 iv = dst - block_size;
1069                                 src += srclen;
1070                                 srclen = last_block_len;
1071                                 /* Encrypt the last frame with ECB mode */
1072                                 status |= process_openssl_cipher_bpi_encrypt(src,
1073                                                 dst, iv,
1074                                                 srclen, sess->cipher.bpi_ctx);
1075                         }
1076                 }
1077         } else {
1078                 /* Decrypt only with ECB mode (encrypt, as it is same operation) */
1079                 if (srclen < block_size) {
1080                         status = process_openssl_cipher_bpi_encrypt(src, dst,
1081                                         iv,
1082                                         srclen,
1083                                         sess->cipher.bpi_ctx);
1084                 } else {
1085                         if (last_block_len) {
1086                                 /* Point at last block */
1087                                 dst += srclen - last_block_len;
1088                                 src += srclen - last_block_len;
1089                                 /*
1090                                  * IV is the last full block
1091                                  */
1092                                 iv = src - block_size;
1093                                 /*
1094                                  * Decrypt the last frame with ECB mode
1095                                  * (encrypt, as it is the same operation)
1096                                  */
1097                                 status = process_openssl_cipher_bpi_encrypt(src,
1098                                                 dst, iv,
1099                                                 last_block_len, sess->cipher.bpi_ctx);
1100                                 /* Prepare parameters for CBC mode op */
1101                                 iv = rte_crypto_op_ctod_offset(op, uint8_t *,
1102                                                 sess->iv.offset);
1103                                 dst += last_block_len - srclen;
1104                                 srclen -= last_block_len;
1105                         }
1106
1107                         /* Decrypt with CBC mode */
1108                         status |= process_openssl_cipher_decrypt(mbuf_src, dst,
1109                                         op->sym->cipher.data.offset, iv,
1110                                         sess->cipher.key.data, srclen,
1111                                         sess->cipher.ctx,
1112                                         sess->cipher.evp_algo);
1113                 }
1114         }
1115
1116         if (status != 0)
1117                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1118 }
1119
1120 /** Process auth operation */
1121 static void
1122 process_openssl_auth_op
1123                 (struct rte_crypto_op *op, struct openssl_session *sess,
1124                 struct rte_mbuf *mbuf_src, struct rte_mbuf *mbuf_dst)
1125 {
1126         uint8_t *dst;
1127         int srclen, status;
1128
1129         srclen = op->sym->auth.data.length;
1130
1131         if (sess->auth.operation == RTE_CRYPTO_AUTH_OP_VERIFY)
1132                 dst = (uint8_t *)rte_pktmbuf_append(mbuf_src,
1133                                 op->sym->auth.digest.length);
1134         else {
1135                 dst = op->sym->auth.digest.data;
1136                 if (dst == NULL)
1137                         dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
1138                                         op->sym->auth.data.offset +
1139                                         op->sym->auth.data.length);
1140         }
1141
1142         switch (sess->auth.mode) {
1143         case OPENSSL_AUTH_AS_AUTH:
1144                 status = process_openssl_auth(mbuf_src, dst,
1145                                 op->sym->auth.data.offset, NULL, NULL, srclen,
1146                                 sess->auth.auth.ctx, sess->auth.auth.evp_algo);
1147                 break;
1148         case OPENSSL_AUTH_AS_HMAC:
1149                 status = process_openssl_auth_hmac(mbuf_src, dst,
1150                                 op->sym->auth.data.offset, NULL,
1151                                 sess->auth.hmac.pkey, srclen,
1152                                 sess->auth.hmac.ctx, sess->auth.hmac.evp_algo);
1153                 break;
1154         default:
1155                 status = -1;
1156                 break;
1157         }
1158
1159         if (sess->auth.operation == RTE_CRYPTO_AUTH_OP_VERIFY) {
1160                 if (memcmp(dst, op->sym->auth.digest.data,
1161                                 op->sym->auth.digest.length) != 0) {
1162                         op->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
1163                 }
1164                 /* Trim area used for digest from mbuf. */
1165                 rte_pktmbuf_trim(mbuf_src, op->sym->auth.digest.length);
1166         }
1167
1168         if (status != 0)
1169                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1170 }
1171
1172 /** Process crypto operation for mbuf */
1173 static int
1174 process_op(const struct openssl_qp *qp, struct rte_crypto_op *op,
1175                 struct openssl_session *sess)
1176 {
1177         struct rte_mbuf *msrc, *mdst;
1178         int retval;
1179
1180         msrc = op->sym->m_src;
1181         mdst = op->sym->m_dst ? op->sym->m_dst : op->sym->m_src;
1182
1183         op->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
1184
1185         switch (sess->chain_order) {
1186         case OPENSSL_CHAIN_ONLY_CIPHER:
1187                 process_openssl_cipher_op(op, sess, msrc, mdst);
1188                 break;
1189         case OPENSSL_CHAIN_ONLY_AUTH:
1190                 process_openssl_auth_op(op, sess, msrc, mdst);
1191                 break;
1192         case OPENSSL_CHAIN_CIPHER_AUTH:
1193                 process_openssl_cipher_op(op, sess, msrc, mdst);
1194                 process_openssl_auth_op(op, sess, mdst, mdst);
1195                 break;
1196         case OPENSSL_CHAIN_AUTH_CIPHER:
1197                 process_openssl_auth_op(op, sess, msrc, mdst);
1198                 process_openssl_cipher_op(op, sess, msrc, mdst);
1199                 break;
1200         case OPENSSL_CHAIN_COMBINED:
1201                 process_openssl_combined_op(op, sess, msrc, mdst);
1202                 break;
1203         case OPENSSL_CHAIN_CIPHER_BPI:
1204                 process_openssl_docsis_bpi_op(op, sess, msrc, mdst);
1205                 break;
1206         default:
1207                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1208                 break;
1209         }
1210
1211         /* Free session if a session-less crypto op */
1212         if (op->sess_type == RTE_CRYPTO_OP_SESSIONLESS) {
1213                 openssl_reset_session(sess);
1214                 memset(sess, 0, sizeof(struct openssl_session));
1215                 rte_mempool_put(qp->sess_mp, op->sym->session);
1216                 op->sym->session = NULL;
1217         }
1218
1219         if (op->status == RTE_CRYPTO_OP_STATUS_NOT_PROCESSED)
1220                 op->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
1221
1222         if (op->status != RTE_CRYPTO_OP_STATUS_ERROR)
1223                 retval = rte_ring_enqueue(qp->processed_ops, (void *)op);
1224         else
1225                 retval = -1;
1226
1227         return retval;
1228 }
1229
1230 /*
1231  *------------------------------------------------------------------------------
1232  * PMD Framework
1233  *------------------------------------------------------------------------------
1234  */
1235
1236 /** Enqueue burst */
1237 static uint16_t
1238 openssl_pmd_enqueue_burst(void *queue_pair, struct rte_crypto_op **ops,
1239                 uint16_t nb_ops)
1240 {
1241         struct openssl_session *sess;
1242         struct openssl_qp *qp = queue_pair;
1243         int i, retval;
1244
1245         for (i = 0; i < nb_ops; i++) {
1246                 sess = get_session(qp, ops[i]);
1247                 if (unlikely(sess == NULL))
1248                         goto enqueue_err;
1249
1250                 retval = process_op(qp, ops[i], sess);
1251                 if (unlikely(retval < 0))
1252                         goto enqueue_err;
1253         }
1254
1255         qp->stats.enqueued_count += i;
1256         return i;
1257
1258 enqueue_err:
1259         qp->stats.enqueue_err_count++;
1260         return i;
1261 }
1262
1263 /** Dequeue burst */
1264 static uint16_t
1265 openssl_pmd_dequeue_burst(void *queue_pair, struct rte_crypto_op **ops,
1266                 uint16_t nb_ops)
1267 {
1268         struct openssl_qp *qp = queue_pair;
1269
1270         unsigned int nb_dequeued = 0;
1271
1272         nb_dequeued = rte_ring_dequeue_burst(qp->processed_ops,
1273                         (void **)ops, nb_ops, NULL);
1274         qp->stats.dequeued_count += nb_dequeued;
1275
1276         return nb_dequeued;
1277 }
1278
1279 /** Create OPENSSL crypto device */
1280 static int
1281 cryptodev_openssl_create(const char *name,
1282                         struct rte_vdev_device *vdev,
1283                         struct rte_crypto_vdev_init_params *init_params)
1284 {
1285         struct rte_cryptodev *dev;
1286         struct openssl_private *internals;
1287
1288         if (init_params->name[0] == '\0')
1289                 snprintf(init_params->name, sizeof(init_params->name),
1290                                 "%s", name);
1291
1292         dev = rte_cryptodev_vdev_pmd_init(init_params->name,
1293                         sizeof(struct openssl_private),
1294                         init_params->socket_id,
1295                         vdev);
1296         if (dev == NULL) {
1297                 OPENSSL_LOG_ERR("failed to create cryptodev vdev");
1298                 goto init_error;
1299         }
1300
1301         dev->dev_type = RTE_CRYPTODEV_OPENSSL_PMD;
1302         dev->dev_ops = rte_openssl_pmd_ops;
1303
1304         /* register rx/tx burst functions for data path */
1305         dev->dequeue_burst = openssl_pmd_dequeue_burst;
1306         dev->enqueue_burst = openssl_pmd_enqueue_burst;
1307
1308         dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
1309                         RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING |
1310                         RTE_CRYPTODEV_FF_CPU_AESNI |
1311                         RTE_CRYPTODEV_FF_MBUF_SCATTER_GATHER;
1312
1313         /* Set vector instructions mode supported */
1314         internals = dev->data->dev_private;
1315
1316         internals->max_nb_qpairs = init_params->max_nb_queue_pairs;
1317         internals->max_nb_sessions = init_params->max_nb_sessions;
1318
1319         return 0;
1320
1321 init_error:
1322         OPENSSL_LOG_ERR("driver %s: cryptodev_openssl_create failed",
1323                         init_params->name);
1324
1325         cryptodev_openssl_remove(vdev);
1326         return -EFAULT;
1327 }
1328
1329 /** Initialise OPENSSL crypto device */
1330 static int
1331 cryptodev_openssl_probe(struct rte_vdev_device *vdev)
1332 {
1333         struct rte_crypto_vdev_init_params init_params = {
1334                 RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_QUEUE_PAIRS,
1335                 RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_SESSIONS,
1336                 rte_socket_id(),
1337                 {0}
1338         };
1339         const char *name;
1340         const char *input_args;
1341
1342         name = rte_vdev_device_name(vdev);
1343         if (name == NULL)
1344                 return -EINVAL;
1345         input_args = rte_vdev_device_args(vdev);
1346
1347         rte_cryptodev_vdev_parse_init_params(&init_params, input_args);
1348
1349         RTE_LOG(INFO, PMD, "Initialising %s on NUMA node %d\n", name,
1350                         init_params.socket_id);
1351         if (init_params.name[0] != '\0')
1352                 RTE_LOG(INFO, PMD, "  User defined name = %s\n",
1353                         init_params.name);
1354         RTE_LOG(INFO, PMD, "  Max number of queue pairs = %d\n",
1355                         init_params.max_nb_queue_pairs);
1356         RTE_LOG(INFO, PMD, "  Max number of sessions = %d\n",
1357                         init_params.max_nb_sessions);
1358
1359         return cryptodev_openssl_create(name, vdev, &init_params);
1360 }
1361
1362 /** Uninitialise OPENSSL crypto device */
1363 static int
1364 cryptodev_openssl_remove(struct rte_vdev_device *vdev)
1365 {
1366         const char *name;
1367
1368         name = rte_vdev_device_name(vdev);
1369         if (name == NULL)
1370                 return -EINVAL;
1371
1372         RTE_LOG(INFO, PMD,
1373                 "Closing OPENSSL crypto device %s on numa socket %u\n",
1374                 name, rte_socket_id());
1375
1376         return 0;
1377 }
1378
1379 static struct rte_vdev_driver cryptodev_openssl_pmd_drv = {
1380         .probe = cryptodev_openssl_probe,
1381         .remove = cryptodev_openssl_remove
1382 };
1383
1384 RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_OPENSSL_PMD,
1385         cryptodev_openssl_pmd_drv);
1386 RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_OPENSSL_PMD,
1387         "max_nb_queue_pairs=<int> "
1388         "max_nb_sessions=<int> "
1389         "socket_id=<int>");