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         sess->auth.digest_length = xform->auth.digest_length;
 375
 376         return 0;
 377 }
 378
 379 /** Parse crypto xform chain and set private session parameters */
 380 int
 381 openssl_set_session_parameters(struct openssl_session *sess,
 382                 const struct rte_crypto_sym_xform *xform)
 383 {
 384         const struct rte_crypto_sym_xform *cipher_xform = NULL;
 385         const struct rte_crypto_sym_xform *auth_xform = NULL;
 386
 387         sess->chain_order = openssl_get_chain_order(xform);
 388         switch (sess->chain_order) {
 389         case OPENSSL_CHAIN_ONLY_CIPHER:
 390                 cipher_xform = xform;
 391                 break;
 392         case OPENSSL_CHAIN_ONLY_AUTH:
 393                 auth_xform = xform;
 394                 break;
 395         case OPENSSL_CHAIN_CIPHER_AUTH:
 396                 cipher_xform = xform;
 397                 auth_xform = xform->next;
 398                 break;
 399         case OPENSSL_CHAIN_AUTH_CIPHER:
 400                 auth_xform = xform;
 401                 cipher_xform = xform->next;
 402                 break;
 403         default:
 404                 return -EINVAL;
 405         }
 406
 407         /* Default IV length = 0 */
 408         sess->iv.length = 0;
 409
 410         /* cipher_xform must be check before auth_xform */
 411         if (cipher_xform) {
 412                 if (openssl_set_session_cipher_parameters(
 413                                 sess, cipher_xform)) {
 414                         OPENSSL_LOG_ERR(
 415                                 "Invalid/unsupported cipher parameters");
 416                         return -EINVAL;
 417                 }
 418         }
 419
 420         if (auth_xform) {
 421                 if (openssl_set_session_auth_parameters(sess, auth_xform)) {
 422                         OPENSSL_LOG_ERR(
 423                                 "Invalid/unsupported auth parameters");
 424                         return -EINVAL;
 425                 }
 426         }
 427
 428         return 0;
 429 }
 430
 431 /** Reset private session parameters */
 432 void
 433 openssl_reset_session(struct openssl_session *sess)
 434 {
 435         EVP_CIPHER_CTX_free(sess->cipher.ctx);
 436
 437         if (sess->chain_order == OPENSSL_CHAIN_CIPHER_BPI)
 438                 EVP_CIPHER_CTX_free(sess->cipher.bpi_ctx);
 439
 440         switch (sess->auth.mode) {
 441         case OPENSSL_AUTH_AS_AUTH:
 442                 EVP_MD_CTX_destroy(sess->auth.auth.ctx);
 443                 break;
 444         case OPENSSL_AUTH_AS_HMAC:
 445                 EVP_PKEY_free(sess->auth.hmac.pkey);
 446                 EVP_MD_CTX_destroy(sess->auth.hmac.ctx);
 447                 break;
 448         default:
 449                 break;
 450         }
 451 }
 452
 453 /** Provide session for operation */
 454 static struct openssl_session *
 455 get_session(struct openssl_qp *qp, struct rte_crypto_op *op)
 456 {
 457         struct openssl_session *sess = NULL;
 458
 459         if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION) {
 460                 /* get existing session */
 461                 if (likely(op->sym->session != NULL &&
 462                                 op->sym->session->dev_type ==
 463                                 RTE_CRYPTODEV_OPENSSL_PMD))
 464                         sess = (struct openssl_session *)
 465                                 op->sym->session->_private;
 466         } else  {
 467                 /* provide internal session */
 468                 void *_sess = NULL;
 469
 470                 if (!rte_mempool_get(qp->sess_mp, (void **)&_sess)) {
 471                         sess = (struct openssl_session *)
 472                                 ((struct rte_cryptodev_sym_session *)_sess)
 473                                 ->_private;
 474
 475                         if (unlikely(openssl_set_session_parameters(
 476                                         sess, op->sym->xform) != 0)) {
 477                                 rte_mempool_put(qp->sess_mp, _sess);
 478                                 sess = NULL;
 479                         } else
 480                                 op->sym->session = _sess;
 481                 }
 482         }
 483
 484         if (sess == NULL)
 485                 op->status = RTE_CRYPTO_OP_STATUS_INVALID_SESSION;
 486
 487         return sess;
 488 }
 489
 490 /*
 491  *------------------------------------------------------------------------------
 492  * Process Operations
 493  *------------------------------------------------------------------------------
 494  */
 495 static inline int
 496 process_openssl_encryption_update(struct rte_mbuf *mbuf_src, int offset,
 497                 uint8_t **dst, int srclen, EVP_CIPHER_CTX *ctx)
 498 {
 499         struct rte_mbuf *m;
 500         int dstlen;
 501         int l, n = srclen;
 502         uint8_t *src;
 503
 504         for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m);
 505                         m = m->next)
 506                 offset -= rte_pktmbuf_data_len(m);
 507
 508         if (m == 0)
 509                 return -1;
 510
 511         src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset);
 512
 513         l = rte_pktmbuf_data_len(m) - offset;
 514         if (srclen <= l) {
 515                 if (EVP_EncryptUpdate(ctx, *dst, &dstlen, src, srclen) <= 0)
 516                         return -1;
 517                 *dst += l;
 518                 return 0;
 519         }
 520
 521         if (EVP_EncryptUpdate(ctx, *dst, &dstlen, src, l) <= 0)
 522                 return -1;
 523
 524         *dst += dstlen;
 525         n -= l;
 526
 527         for (m = m->next; (m != NULL) && (n > 0); m = m->next) {
 528                 src = rte_pktmbuf_mtod(m, uint8_t *);
 529                 l = rte_pktmbuf_data_len(m) < n ? rte_pktmbuf_data_len(m) : n;
 530                 if (EVP_EncryptUpdate(ctx, *dst, &dstlen, src, l) <= 0)
 531                         return -1;
 532                 *dst += dstlen;
 533                 n -= l;
 534         }
 535
 536         return 0;
 537 }
 538
 539 static inline int
 540 process_openssl_decryption_update(struct rte_mbuf *mbuf_src, int offset,
 541                 uint8_t **dst, int srclen, EVP_CIPHER_CTX *ctx)
 542 {
 543         struct rte_mbuf *m;
 544         int dstlen;
 545         int l, n = srclen;
 546         uint8_t *src;
 547
 548         for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m);
 549                         m = m->next)
 550                 offset -= rte_pktmbuf_data_len(m);
 551
 552         if (m == 0)
 553                 return -1;
 554
 555         src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset);
 556
 557         l = rte_pktmbuf_data_len(m) - offset;
 558         if (srclen <= l) {
 559                 if (EVP_DecryptUpdate(ctx, *dst, &dstlen, src, srclen) <= 0)
 560                         return -1;
 561                 *dst += l;
 562                 return 0;
 563         }
 564
 565         if (EVP_DecryptUpdate(ctx, *dst, &dstlen, src, l) <= 0)
 566                 return -1;
 567
 568         *dst += dstlen;
 569         n -= l;
 570
 571         for (m = m->next; (m != NULL) && (n > 0); m = m->next) {
 572                 src = rte_pktmbuf_mtod(m, uint8_t *);
 573                 l = rte_pktmbuf_data_len(m) < n ? rte_pktmbuf_data_len(m) : n;
 574                 if (EVP_DecryptUpdate(ctx, *dst, &dstlen, src, l) <= 0)
 575                         return -1;
 576                 *dst += dstlen;
 577                 n -= l;
 578         }
 579
 580         return 0;
 581 }
 582
 583 /** Process standard openssl cipher encryption */
 584 static int
 585 process_openssl_cipher_encrypt(struct rte_mbuf *mbuf_src, uint8_t *dst,
 586                 int offset, uint8_t *iv, uint8_t *key, int srclen,
 587                 EVP_CIPHER_CTX *ctx, const EVP_CIPHER *algo)
 588 {
 589         int totlen;
 590
 591         if (EVP_EncryptInit_ex(ctx, algo, NULL, key, iv) <= 0)
 592                 goto process_cipher_encrypt_err;
 593
 594         EVP_CIPHER_CTX_set_padding(ctx, 0);
 595
 596         if (process_openssl_encryption_update(mbuf_src, offset, &dst,
 597                         srclen, ctx))
 598                 goto process_cipher_encrypt_err;
 599
 600         if (EVP_EncryptFinal_ex(ctx, dst, &totlen) <= 0)
 601                 goto process_cipher_encrypt_err;
 602
 603         return 0;
 604
 605 process_cipher_encrypt_err:
 606         OPENSSL_LOG_ERR("Process openssl cipher encrypt failed");
 607         return -EINVAL;
 608 }
 609
 610 /** Process standard openssl cipher encryption */
 611 static int
 612 process_openssl_cipher_bpi_encrypt(uint8_t *src, uint8_t *dst,
 613                 uint8_t *iv, int srclen,
 614                 EVP_CIPHER_CTX *ctx)
 615 {
 616         uint8_t i;
 617         uint8_t encrypted_iv[DES_BLOCK_SIZE];
 618         int encrypted_ivlen;
 619
 620         if (EVP_EncryptUpdate(ctx, encrypted_iv, &encrypted_ivlen,
 621                         iv, DES_BLOCK_SIZE) <= 0)
 622                 goto process_cipher_encrypt_err;
 623
 624         for (i = 0; i < srclen; i++)
 625                 *(dst + i) = *(src + i) ^ (encrypted_iv[i]);
 626
 627         return 0;
 628
 629 process_cipher_encrypt_err:
 630         OPENSSL_LOG_ERR("Process openssl cipher bpi encrypt failed");
 631         return -EINVAL;
 632 }
 633 /** Process standard openssl cipher decryption */
 634 static int
 635 process_openssl_cipher_decrypt(struct rte_mbuf *mbuf_src, uint8_t *dst,
 636                 int offset, uint8_t *iv, uint8_t *key, int srclen,
 637                 EVP_CIPHER_CTX *ctx, const EVP_CIPHER *algo)
 638 {
 639         int totlen;
 640
 641         if (EVP_DecryptInit_ex(ctx, algo, NULL, key, iv) <= 0)
 642                 goto process_cipher_decrypt_err;
 643
 644         EVP_CIPHER_CTX_set_padding(ctx, 0);
 645
 646         if (process_openssl_decryption_update(mbuf_src, offset, &dst,
 647                         srclen, ctx))
 648                 goto process_cipher_decrypt_err;
 649
 650         if (EVP_DecryptFinal_ex(ctx, dst, &totlen) <= 0)
 651                 goto process_cipher_decrypt_err;
 652         return 0;
 653
 654 process_cipher_decrypt_err:
 655         OPENSSL_LOG_ERR("Process openssl cipher decrypt failed");
 656         return -EINVAL;
 657 }
 658
 659 /** Process cipher des 3 ctr encryption, decryption algorithm */
 660 static int
 661 process_openssl_cipher_des3ctr(struct rte_mbuf *mbuf_src, uint8_t *dst,
 662                 int offset, uint8_t *iv, uint8_t *key, int srclen,
 663                 EVP_CIPHER_CTX *ctx)
 664 {
 665         uint8_t ebuf[8], ctr[8];
 666         int unused, n;
 667         struct rte_mbuf *m;
 668         uint8_t *src;
 669         int l;
 670
 671         for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m);
 672                         m = m->next)
 673                 offset -= rte_pktmbuf_data_len(m);
 674
 675         if (m == 0)
 676                 goto process_cipher_des3ctr_err;
 677
 678         src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset);
 679         l = rte_pktmbuf_data_len(m) - offset;
 680
 681         /* We use 3DES encryption also for decryption.
 682          * IV is not important for 3DES ecb
 683          */
 684         if (EVP_EncryptInit_ex(ctx, EVP_des_ede3_ecb(), NULL, key, NULL) <= 0)
 685                 goto process_cipher_des3ctr_err;
 686
 687         memcpy(ctr, iv, 8);
 688
 689         for (n = 0; n < srclen; n++) {
 690                 if (n % 8 == 0) {
 691                         if (EVP_EncryptUpdate(ctx,
 692                                         (unsigned char *)&ebuf, &unused,
 693                                         (const unsigned char *)&ctr, 8) <= 0)
 694                                 goto process_cipher_des3ctr_err;
 695                         ctr_inc(ctr);
 696                 }
 697                 dst[n] = *(src++) ^ ebuf[n % 8];
 698
 699                 l--;
 700                 if (!l) {
 701                         m = m->next;
 702                         if (m) {
 703                                 src = rte_pktmbuf_mtod(m, uint8_t *);
 704                                 l = rte_pktmbuf_data_len(m);
 705                         }
 706                 }
 707         }
 708
 709         return 0;
 710
 711 process_cipher_des3ctr_err:
 712         OPENSSL_LOG_ERR("Process openssl cipher des 3 ede ctr failed");
 713         return -EINVAL;
 714 }
 715
 716 /** Process auth/encription aes-gcm algorithm */
 717 static int
 718 process_openssl_auth_encryption_gcm(struct rte_mbuf *mbuf_src, int offset,
 719                 int srclen, uint8_t *aad, int aadlen, uint8_t *iv, int ivlen,
 720                 uint8_t *key, uint8_t *dst, uint8_t *tag,
 721                 EVP_CIPHER_CTX *ctx, const EVP_CIPHER *algo)
 722 {
 723         int len = 0, unused = 0;
 724         uint8_t empty[] = {};
 725
 726         if (EVP_EncryptInit_ex(ctx, algo, NULL, NULL, NULL) <= 0)
 727                 goto process_auth_encryption_gcm_err;
 728
 729         if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_IVLEN, ivlen, NULL) <= 0)
 730                 goto process_auth_encryption_gcm_err;
 731
 732         if (EVP_EncryptInit_ex(ctx, NULL, NULL, key, iv) <= 0)
 733                 goto process_auth_encryption_gcm_err;
 734
 735         if (aadlen > 0)
 736                 if (EVP_EncryptUpdate(ctx, NULL, &len, aad, aadlen) <= 0)
 737                         goto process_auth_encryption_gcm_err;
 738
 739         if (srclen > 0)
 740                 if (process_openssl_encryption_update(mbuf_src, offset, &dst,
 741                                 srclen, ctx))
 742                         goto process_auth_encryption_gcm_err;
 743
 744         /* Workaround open ssl bug in version less then 1.0.1f */
 745         if (EVP_EncryptUpdate(ctx, empty, &unused, empty, 0) <= 0)
 746                 goto process_auth_encryption_gcm_err;
 747
 748         if (EVP_EncryptFinal_ex(ctx, dst, &len) <= 0)
 749                 goto process_auth_encryption_gcm_err;
 750
 751         if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_GET_TAG, 16, tag) <= 0)
 752                 goto process_auth_encryption_gcm_err;
 753
 754         return 0;
 755
 756 process_auth_encryption_gcm_err:
 757         OPENSSL_LOG_ERR("Process openssl auth encryption gcm failed");
 758         return -EINVAL;
 759 }
 760
 761 static int
 762 process_openssl_auth_decryption_gcm(struct rte_mbuf *mbuf_src, int offset,
 763                 int srclen, uint8_t *aad, int aadlen, uint8_t *iv, int ivlen,
 764                 uint8_t *key, uint8_t *dst, uint8_t *tag, EVP_CIPHER_CTX *ctx,
 765                 const EVP_CIPHER *algo)
 766 {
 767         int len = 0, unused = 0;
 768         uint8_t empty[] = {};
 769
 770         if (EVP_DecryptInit_ex(ctx, algo, NULL, NULL, NULL) <= 0)
 771                 goto process_auth_decryption_gcm_err;
 772
 773         if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_IVLEN, ivlen, NULL) <= 0)
 774                 goto process_auth_decryption_gcm_err;
 775
 776         if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_TAG, 16, tag) <= 0)
 777                 goto process_auth_decryption_gcm_err;
 778
 779         if (EVP_DecryptInit_ex(ctx, NULL, NULL, key, iv) <= 0)
 780                 goto process_auth_decryption_gcm_err;
 781
 782         if (aadlen > 0)
 783                 if (EVP_DecryptUpdate(ctx, NULL, &len, aad, aadlen) <= 0)
 784                         goto process_auth_decryption_gcm_err;
 785
 786         if (srclen > 0)
 787                 if (process_openssl_decryption_update(mbuf_src, offset, &dst,
 788                                 srclen, ctx))
 789                         goto process_auth_decryption_gcm_err;
 790
 791         /* Workaround open ssl bug in version less then 1.0.1f */
 792         if (EVP_DecryptUpdate(ctx, empty, &unused, empty, 0) <= 0)
 793                 goto process_auth_decryption_gcm_err;
 794
 795         if (EVP_DecryptFinal_ex(ctx, dst, &len) <= 0)
 796                 goto process_auth_decryption_gcm_final_err;
 797
 798         return 0;
 799
 800 process_auth_decryption_gcm_err:
 801         OPENSSL_LOG_ERR("Process openssl auth description gcm failed");
 802         return -EINVAL;
 803
 804 process_auth_decryption_gcm_final_err:
 805         return -EFAULT;
 806 }
 807
 808 /** Process standard openssl auth algorithms */
 809 static int
 810 process_openssl_auth(struct rte_mbuf *mbuf_src, uint8_t *dst, int offset,
 811                 __rte_unused uint8_t *iv, __rte_unused EVP_PKEY * pkey,
 812                 int srclen, EVP_MD_CTX *ctx, const EVP_MD *algo)
 813 {
 814         size_t dstlen;
 815         struct rte_mbuf *m;
 816         int l, n = srclen;
 817         uint8_t *src;
 818
 819         for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m);
 820                         m = m->next)
 821                 offset -= rte_pktmbuf_data_len(m);
 822
 823         if (m == 0)
 824                 goto process_auth_err;
 825
 826         if (EVP_DigestInit_ex(ctx, algo, NULL) <= 0)
 827                 goto process_auth_err;
 828
 829         src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset);
 830
 831         l = rte_pktmbuf_data_len(m) - offset;
 832         if (srclen <= l) {
 833                 if (EVP_DigestUpdate(ctx, (char *)src, srclen) <= 0)
 834                         goto process_auth_err;
 835                 goto process_auth_final;
 836         }
 837
 838         if (EVP_DigestUpdate(ctx, (char *)src, l) <= 0)
 839                 goto process_auth_err;
 840
 841         n -= l;
 842
 843         for (m = m->next; (m != NULL) && (n > 0); m = m->next) {
 844                 src = rte_pktmbuf_mtod(m, uint8_t *);
 845                 l = rte_pktmbuf_data_len(m) < n ? rte_pktmbuf_data_len(m) : n;
 846                 if (EVP_DigestUpdate(ctx, (char *)src, l) <= 0)
 847                         goto process_auth_err;
 848                 n -= l;
 849         }
 850
 851 process_auth_final:
 852         if (EVP_DigestFinal_ex(ctx, dst, (unsigned int *)&dstlen) <= 0)
 853                 goto process_auth_err;
 854         return 0;
 855
 856 process_auth_err:
 857         OPENSSL_LOG_ERR("Process openssl auth failed");
 858         return -EINVAL;
 859 }
 860
 861 /** Process standard openssl auth algorithms with hmac */
 862 static int
 863 process_openssl_auth_hmac(struct rte_mbuf *mbuf_src, uint8_t *dst, int offset,
 864                 __rte_unused uint8_t *iv, EVP_PKEY *pkey,
 865                 int srclen, EVP_MD_CTX *ctx, const EVP_MD *algo)
 866 {
 867         size_t dstlen;
 868         struct rte_mbuf *m;
 869         int l, n = srclen;
 870         uint8_t *src;
 871
 872         for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m);
 873                         m = m->next)
 874                 offset -= rte_pktmbuf_data_len(m);
 875
 876         if (m == 0)
 877                 goto process_auth_err;
 878
 879         if (EVP_DigestSignInit(ctx, NULL, algo, NULL, pkey) <= 0)
 880                 goto process_auth_err;
 881
 882         src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset);
 883
 884         l = rte_pktmbuf_data_len(m) - offset;
 885         if (srclen <= l) {
 886                 if (EVP_DigestSignUpdate(ctx, (char *)src, srclen) <= 0)
 887                         goto process_auth_err;
 888                 goto process_auth_final;
 889         }
 890
 891         if (EVP_DigestSignUpdate(ctx, (char *)src, l) <= 0)
 892                 goto process_auth_err;
 893
 894         n -= l;
 895
 896         for (m = m->next; (m != NULL) && (n > 0); m = m->next) {
 897                 src = rte_pktmbuf_mtod(m, uint8_t *);
 898                 l = rte_pktmbuf_data_len(m) < n ? rte_pktmbuf_data_len(m) : n;
 899                 if (EVP_DigestSignUpdate(ctx, (char *)src, l) <= 0)
 900                         goto process_auth_err;
 901                 n -= l;
 902         }
 903
 904 process_auth_final:
 905         if (EVP_DigestSignFinal(ctx, dst, &dstlen) <= 0)
 906                 goto process_auth_err;
 907
 908         return 0;
 909
 910 process_auth_err:
 911         OPENSSL_LOG_ERR("Process openssl auth failed");
 912         return -EINVAL;
 913 }
 914
 915 /*----------------------------------------------------------------------------*/
 916
 917 /** Process auth/cipher combined operation */
 918 static void
 919 process_openssl_combined_op
 920                 (struct rte_crypto_op *op, struct openssl_session *sess,
 921                 struct rte_mbuf *mbuf_src, struct rte_mbuf *mbuf_dst)
 922 {
 923         /* cipher */
 924         uint8_t *dst = NULL, *iv, *tag, *aad;
 925         int srclen, ivlen, aadlen, status = -1;
 926
 927         /*
 928          * Segmented destination buffer is not supported for
 929          * encryption/decryption
 930          */
 931         if (!rte_pktmbuf_is_contiguous(mbuf_dst)) {
 932                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
 933                 return;
 934         }
 935
 936         iv = rte_crypto_op_ctod_offset(op, uint8_t *,
 937                         sess->iv.offset);
 938         ivlen = sess->iv.length;
 939         aad = op->sym->auth.aad.data;
 940         aadlen = sess->auth.aad_length;
 941
 942         tag = op->sym->auth.digest.data;
 943         if (tag == NULL)
 944                 tag = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
 945                                 op->sym->cipher.data.offset +
 946                                 op->sym->cipher.data.length);
 947
 948         if (sess->auth.algo == RTE_CRYPTO_AUTH_AES_GMAC)
 949                 srclen = 0;
 950         else {
 951                 srclen = op->sym->cipher.data.length;
 952                 dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
 953                                 op->sym->cipher.data.offset);
 954         }
 955
 956         if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT)
 957                 status = process_openssl_auth_encryption_gcm(
 958                                 mbuf_src, op->sym->cipher.data.offset, srclen,
 959                                 aad, aadlen, iv, ivlen, sess->cipher.key.data,
 960                                 dst, tag, sess->cipher.ctx,
 961                                 sess->cipher.evp_algo);
 962         else
 963                 status = process_openssl_auth_decryption_gcm(
 964                                 mbuf_src, op->sym->cipher.data.offset, srclen,
 965                                 aad, aadlen, iv, ivlen, sess->cipher.key.data,
 966                                 dst, tag, sess->cipher.ctx,
 967                                 sess->cipher.evp_algo);
 968
 969         if (status != 0) {
 970                 if (status == (-EFAULT) &&
 971                                 sess->auth.operation ==
 972                                                 RTE_CRYPTO_AUTH_OP_VERIFY)
 973                         op->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
 974                 else
 975                         op->status = RTE_CRYPTO_OP_STATUS_ERROR;
 976         }
 977 }
 978
 979 /** Process cipher operation */
 980 static void
 981 process_openssl_cipher_op
 982                 (struct rte_crypto_op *op, struct openssl_session *sess,
 983                 struct rte_mbuf *mbuf_src, struct rte_mbuf *mbuf_dst)
 984 {
 985         uint8_t *dst, *iv;
 986         int srclen, status;
 987
 988         /*
 989          * Segmented destination buffer is not supported for
 990          * encryption/decryption
 991          */
 992         if (!rte_pktmbuf_is_contiguous(mbuf_dst)) {
 993                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
 994                 return;
 995         }
 996
 997         srclen = op->sym->cipher.data.length;
 998         dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
 999                         op->sym->cipher.data.offset);
1000
1001         iv = rte_crypto_op_ctod_offset(op, uint8_t *,
1002                         sess->iv.offset);
1003
1004         if (sess->cipher.mode == OPENSSL_CIPHER_LIB)
1005                 if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT)
1006                         status = process_openssl_cipher_encrypt(mbuf_src, dst,
1007                                         op->sym->cipher.data.offset, iv,
1008                                         sess->cipher.key.data, srclen,
1009                                         sess->cipher.ctx,
1010                                         sess->cipher.evp_algo);
1011                 else
1012                         status = process_openssl_cipher_decrypt(mbuf_src, dst,
1013                                         op->sym->cipher.data.offset, iv,
1014                                         sess->cipher.key.data, srclen,
1015                                         sess->cipher.ctx,
1016                                         sess->cipher.evp_algo);
1017         else
1018                 status = process_openssl_cipher_des3ctr(mbuf_src, dst,
1019                                 op->sym->cipher.data.offset, iv,
1020                                 sess->cipher.key.data, srclen,
1021                                 sess->cipher.ctx);
1022
1023         if (status != 0)
1024                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1025 }
1026
1027 /** Process cipher operation */
1028 static void
1029 process_openssl_docsis_bpi_op(struct rte_crypto_op *op,
1030                 struct openssl_session *sess, struct rte_mbuf *mbuf_src,
1031                 struct rte_mbuf *mbuf_dst)
1032 {
1033         uint8_t *src, *dst, *iv;
1034         uint8_t block_size, last_block_len;
1035         int srclen, status = 0;
1036
1037         srclen = op->sym->cipher.data.length;
1038         src = rte_pktmbuf_mtod_offset(mbuf_src, uint8_t *,
1039                         op->sym->cipher.data.offset);
1040         dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
1041                         op->sym->cipher.data.offset);
1042
1043         iv = rte_crypto_op_ctod_offset(op, uint8_t *,
1044                         sess->iv.offset);
1045
1046         block_size = DES_BLOCK_SIZE;
1047
1048         last_block_len = srclen % block_size;
1049         if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT) {
1050                 /* Encrypt only with ECB mode XOR IV */
1051                 if (srclen < block_size) {
1052                         status = process_openssl_cipher_bpi_encrypt(src, dst,
1053                                         iv, srclen,
1054                                         sess->cipher.bpi_ctx);
1055                 } else {
1056                         srclen -= last_block_len;
1057                         /* Encrypt with the block aligned stream with CBC mode */
1058                         status = process_openssl_cipher_encrypt(mbuf_src, dst,
1059                                         op->sym->cipher.data.offset, iv,
1060                                         sess->cipher.key.data, srclen,
1061                                         sess->cipher.ctx, sess->cipher.evp_algo);
1062                         if (last_block_len) {
1063                                 /* Point at last block */
1064                                 dst += srclen;
1065                                 /*
1066                                  * IV is the last encrypted block from
1067                                  * the previous operation
1068                                  */
1069                                 iv = dst - block_size;
1070                                 src += srclen;
1071                                 srclen = last_block_len;
1072                                 /* Encrypt the last frame with ECB mode */
1073                                 status |= process_openssl_cipher_bpi_encrypt(src,
1074                                                 dst, iv,
1075                                                 srclen, sess->cipher.bpi_ctx);
1076                         }
1077                 }
1078         } else {
1079                 /* Decrypt only with ECB mode (encrypt, as it is same operation) */
1080                 if (srclen < block_size) {
1081                         status = process_openssl_cipher_bpi_encrypt(src, dst,
1082                                         iv,
1083                                         srclen,
1084                                         sess->cipher.bpi_ctx);
1085                 } else {
1086                         if (last_block_len) {
1087                                 /* Point at last block */
1088                                 dst += srclen - last_block_len;
1089                                 src += srclen - last_block_len;
1090                                 /*
1091                                  * IV is the last full block
1092                                  */
1093                                 iv = src - block_size;
1094                                 /*
1095                                  * Decrypt the last frame with ECB mode
1096                                  * (encrypt, as it is the same operation)
1097                                  */
1098                                 status = process_openssl_cipher_bpi_encrypt(src,
1099                                                 dst, iv,
1100                                                 last_block_len, sess->cipher.bpi_ctx);
1101                                 /* Prepare parameters for CBC mode op */
1102                                 iv = rte_crypto_op_ctod_offset(op, uint8_t *,
1103                                                 sess->iv.offset);
1104                                 dst += last_block_len - srclen;
1105                                 srclen -= last_block_len;
1106                         }
1107
1108                         /* Decrypt with CBC mode */
1109                         status |= process_openssl_cipher_decrypt(mbuf_src, dst,
1110                                         op->sym->cipher.data.offset, iv,
1111                                         sess->cipher.key.data, srclen,
1112                                         sess->cipher.ctx,
1113                                         sess->cipher.evp_algo);
1114                 }
1115         }
1116
1117         if (status != 0)
1118                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1119 }
1120
1121 /** Process auth operation */
1122 static void
1123 process_openssl_auth_op
1124                 (struct rte_crypto_op *op, struct openssl_session *sess,
1125                 struct rte_mbuf *mbuf_src, struct rte_mbuf *mbuf_dst)
1126 {
1127         uint8_t *dst;
1128         int srclen, status;
1129
1130         srclen = op->sym->auth.data.length;
1131
1132         if (sess->auth.operation == RTE_CRYPTO_AUTH_OP_VERIFY)
1133                 dst = (uint8_t *)rte_pktmbuf_append(mbuf_src,
1134                                 sess->auth.digest_length);
1135         else {
1136                 dst = op->sym->auth.digest.data;
1137                 if (dst == NULL)
1138                         dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
1139                                         op->sym->auth.data.offset +
1140                                         op->sym->auth.data.length);
1141         }
1142
1143         switch (sess->auth.mode) {
1144         case OPENSSL_AUTH_AS_AUTH:
1145                 status = process_openssl_auth(mbuf_src, dst,
1146                                 op->sym->auth.data.offset, NULL, NULL, srclen,
1147                                 sess->auth.auth.ctx, sess->auth.auth.evp_algo);
1148                 break;
1149         case OPENSSL_AUTH_AS_HMAC:
1150                 status = process_openssl_auth_hmac(mbuf_src, dst,
1151                                 op->sym->auth.data.offset, NULL,
1152                                 sess->auth.hmac.pkey, srclen,
1153                                 sess->auth.hmac.ctx, sess->auth.hmac.evp_algo);
1154                 break;
1155         default:
1156                 status = -1;
1157                 break;
1158         }
1159
1160         if (sess->auth.operation == RTE_CRYPTO_AUTH_OP_VERIFY) {
1161                 if (memcmp(dst, op->sym->auth.digest.data,
1162                                 sess->auth.digest_length) != 0) {
1163                         op->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
1164                 }
1165                 /* Trim area used for digest from mbuf. */
1166                 rte_pktmbuf_trim(mbuf_src, sess->auth.digest_length);
1167         }
1168
1169         if (status != 0)
1170                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1171 }
1172
1173 /** Process crypto operation for mbuf */
1174 static int
1175 process_op(const struct openssl_qp *qp, struct rte_crypto_op *op,
1176                 struct openssl_session *sess)
1177 {
1178         struct rte_mbuf *msrc, *mdst;
1179         int retval;
1180
1181         msrc = op->sym->m_src;
1182         mdst = op->sym->m_dst ? op->sym->m_dst : op->sym->m_src;
1183
1184         op->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
1185
1186         switch (sess->chain_order) {
1187         case OPENSSL_CHAIN_ONLY_CIPHER:
1188                 process_openssl_cipher_op(op, sess, msrc, mdst);
1189                 break;
1190         case OPENSSL_CHAIN_ONLY_AUTH:
1191                 process_openssl_auth_op(op, sess, msrc, mdst);
1192                 break;
1193         case OPENSSL_CHAIN_CIPHER_AUTH:
1194                 process_openssl_cipher_op(op, sess, msrc, mdst);
1195                 process_openssl_auth_op(op, sess, mdst, mdst);
1196                 break;
1197         case OPENSSL_CHAIN_AUTH_CIPHER:
1198                 process_openssl_auth_op(op, sess, msrc, mdst);
1199                 process_openssl_cipher_op(op, sess, msrc, mdst);
1200                 break;
1201         case OPENSSL_CHAIN_COMBINED:
1202                 process_openssl_combined_op(op, sess, msrc, mdst);
1203                 break;
1204         case OPENSSL_CHAIN_CIPHER_BPI:
1205                 process_openssl_docsis_bpi_op(op, sess, msrc, mdst);
1206                 break;
1207         default:
1208                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1209                 break;
1210         }
1211
1212         /* Free session if a session-less crypto op */
1213         if (op->sess_type == RTE_CRYPTO_OP_SESSIONLESS) {
1214                 openssl_reset_session(sess);
1215                 memset(sess, 0, sizeof(struct openssl_session));
1216                 rte_mempool_put(qp->sess_mp, op->sym->session);
1217                 op->sym->session = NULL;
1218         }
1219
1220         if (op->status == RTE_CRYPTO_OP_STATUS_NOT_PROCESSED)
1221                 op->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
1222
1223         if (op->status != RTE_CRYPTO_OP_STATUS_ERROR)
1224                 retval = rte_ring_enqueue(qp->processed_ops, (void *)op);
1225         else
1226                 retval = -1;
1227
1228         return retval;
1229 }
1230
1231 /*
1232  *------------------------------------------------------------------------------
1233  * PMD Framework
1234  *------------------------------------------------------------------------------
1235  */
1236
1237 /** Enqueue burst */
1238 static uint16_t
1239 openssl_pmd_enqueue_burst(void *queue_pair, struct rte_crypto_op **ops,
1240                 uint16_t nb_ops)
1241 {
1242         struct openssl_session *sess;
1243         struct openssl_qp *qp = queue_pair;
1244         int i, retval;
1245
1246         for (i = 0; i < nb_ops; i++) {
1247                 sess = get_session(qp, ops[i]);
1248                 if (unlikely(sess == NULL))
1249                         goto enqueue_err;
1250
1251                 retval = process_op(qp, ops[i], sess);
1252                 if (unlikely(retval < 0))
1253                         goto enqueue_err;
1254         }
1255
1256         qp->stats.enqueued_count += i;
1257         return i;
1258
1259 enqueue_err:
1260         qp->stats.enqueue_err_count++;
1261         return i;
1262 }
1263
1264 /** Dequeue burst */
1265 static uint16_t
1266 openssl_pmd_dequeue_burst(void *queue_pair, struct rte_crypto_op **ops,
1267                 uint16_t nb_ops)
1268 {
1269         struct openssl_qp *qp = queue_pair;
1270
1271         unsigned int nb_dequeued = 0;
1272
1273         nb_dequeued = rte_ring_dequeue_burst(qp->processed_ops,
1274                         (void **)ops, nb_ops, NULL);
1275         qp->stats.dequeued_count += nb_dequeued;
1276
1277         return nb_dequeued;
1278 }
1279
1280 /** Create OPENSSL crypto device */
1281 static int
1282 cryptodev_openssl_create(const char *name,
1283                         struct rte_vdev_device *vdev,
1284                         struct rte_crypto_vdev_init_params *init_params)
1285 {
1286         struct rte_cryptodev *dev;
1287         struct openssl_private *internals;
1288
1289         if (init_params->name[0] == '\0')
1290                 snprintf(init_params->name, sizeof(init_params->name),
1291                                 "%s", name);
1292
1293         dev = rte_cryptodev_vdev_pmd_init(init_params->name,
1294                         sizeof(struct openssl_private),
1295                         init_params->socket_id,
1296                         vdev);
1297         if (dev == NULL) {
1298                 OPENSSL_LOG_ERR("failed to create cryptodev vdev");
1299                 goto init_error;
1300         }
1301
1302         dev->dev_type = RTE_CRYPTODEV_OPENSSL_PMD;
1303         dev->dev_ops = rte_openssl_pmd_ops;
1304
1305         /* register rx/tx burst functions for data path */
1306         dev->dequeue_burst = openssl_pmd_dequeue_burst;
1307         dev->enqueue_burst = openssl_pmd_enqueue_burst;
1308
1309         dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
1310                         RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING |
1311                         RTE_CRYPTODEV_FF_CPU_AESNI |
1312                         RTE_CRYPTODEV_FF_MBUF_SCATTER_GATHER;
1313
1314         /* Set vector instructions mode supported */
1315         internals = dev->data->dev_private;
1316
1317         internals->max_nb_qpairs = init_params->max_nb_queue_pairs;
1318         internals->max_nb_sessions = init_params->max_nb_sessions;
1319
1320         return 0;
1321
1322 init_error:
1323         OPENSSL_LOG_ERR("driver %s: cryptodev_openssl_create failed",
1324                         init_params->name);
1325
1326         cryptodev_openssl_remove(vdev);
1327         return -EFAULT;
1328 }
1329
1330 /** Initialise OPENSSL crypto device */
1331 static int
1332 cryptodev_openssl_probe(struct rte_vdev_device *vdev)
1333 {
1334         struct rte_crypto_vdev_init_params init_params = {
1335                 RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_QUEUE_PAIRS,
1336                 RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_SESSIONS,
1337                 rte_socket_id(),
1338                 {0}
1339         };
1340         const char *name;
1341         const char *input_args;
1342
1343         name = rte_vdev_device_name(vdev);
1344         if (name == NULL)
1345                 return -EINVAL;
1346         input_args = rte_vdev_device_args(vdev);
1347
1348         rte_cryptodev_vdev_parse_init_params(&init_params, input_args);
1349
1350         RTE_LOG(INFO, PMD, "Initialising %s on NUMA node %d\n", name,
1351                         init_params.socket_id);
1352         if (init_params.name[0] != '\0')
1353                 RTE_LOG(INFO, PMD, "  User defined name = %s\n",
1354                         init_params.name);
1355         RTE_LOG(INFO, PMD, "  Max number of queue pairs = %d\n",
1356                         init_params.max_nb_queue_pairs);
1357         RTE_LOG(INFO, PMD, "  Max number of sessions = %d\n",
1358                         init_params.max_nb_sessions);
1359
1360         return cryptodev_openssl_create(name, vdev, &init_params);
1361 }
1362
1363 /** Uninitialise OPENSSL crypto device */
1364 static int
1365 cryptodev_openssl_remove(struct rte_vdev_device *vdev)
1366 {
1367         const char *name;
1368
1369         name = rte_vdev_device_name(vdev);
1370         if (name == NULL)
1371                 return -EINVAL;
1372
1373         RTE_LOG(INFO, PMD,
1374                 "Closing OPENSSL crypto device %s on numa socket %u\n",
1375                 name, rte_socket_id());
1376
1377         return 0;
1378 }
1379
1380 static struct rte_vdev_driver cryptodev_openssl_pmd_drv = {
1381         .probe = cryptodev_openssl_probe,
1382         .remove = cryptodev_openssl_remove
1383 };
1384
1385 RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_OPENSSL_PMD,
1386         cryptodev_openssl_pmd_drv);
1387 RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_OPENSSL_PMD,
1388         "max_nb_queue_pairs=<int> "
1389         "max_nb_sessions=<int> "
1390         "socket_id=<int>");