drivers/crypto/openssl/rte_openssl_pmd.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2016-2017 Intel Corporation
   3  */
   4
   5 #include <rte_common.h>
   6 #include <rte_hexdump.h>
   7 #include <rte_cryptodev.h>
   8 #include <cryptodev_pmd.h>
   9 #include <rte_bus_vdev.h>
  10 #include <rte_malloc.h>
  11 #include <rte_cpuflags.h>
  12
  13 #include <openssl/hmac.h>
  14 #include <openssl/evp.h>
  15
  16 #include "openssl_pmd_private.h"
  17 #include "compat.h"
  18
  19 #define DES_BLOCK_SIZE 8
  20
  21 static uint8_t cryptodev_driver_id;
  22
  23 #if (OPENSSL_VERSION_NUMBER < 0x10100000L)
  24 static HMAC_CTX *HMAC_CTX_new(void)
  25 {
  26         HMAC_CTX *ctx = OPENSSL_malloc(sizeof(*ctx));
  27
  28         if (ctx != NULL)
  29                 HMAC_CTX_init(ctx);
  30         return ctx;
  31 }
  32
  33 static void HMAC_CTX_free(HMAC_CTX *ctx)
  34 {
  35         if (ctx != NULL) {
  36                 HMAC_CTX_cleanup(ctx);
  37                 OPENSSL_free(ctx);
  38         }
  39 }
  40 #endif
  41
  42 static int cryptodev_openssl_remove(struct rte_vdev_device *vdev);
  43
  44 /*----------------------------------------------------------------------------*/
  45
  46 /**
  47  * Increment counter by 1
  48  * Counter is 64 bit array, big-endian
  49  */
  50 static void
  51 ctr_inc(uint8_t *ctr)
  52 {
  53         uint64_t *ctr64 = (uint64_t *)ctr;
  54
  55         *ctr64 = __builtin_bswap64(*ctr64);
  56         (*ctr64)++;
  57         *ctr64 = __builtin_bswap64(*ctr64);
  58 }
  59
  60 /*
  61  *------------------------------------------------------------------------------
  62  * Session Prepare
  63  *------------------------------------------------------------------------------
  64  */
  65
  66 /** Get xform chain order */
  67 static enum openssl_chain_order
  68 openssl_get_chain_order(const struct rte_crypto_sym_xform *xform)
  69 {
  70         enum openssl_chain_order res = OPENSSL_CHAIN_NOT_SUPPORTED;
  71
  72         if (xform != NULL) {
  73                 if (xform->type == RTE_CRYPTO_SYM_XFORM_AUTH) {
  74                         if (xform->next == NULL)
  75                                 res =  OPENSSL_CHAIN_ONLY_AUTH;
  76                         else if (xform->next->type ==
  77                                         RTE_CRYPTO_SYM_XFORM_CIPHER)
  78                                 res =  OPENSSL_CHAIN_AUTH_CIPHER;
  79                 }
  80                 if (xform->type == RTE_CRYPTO_SYM_XFORM_CIPHER) {
  81                         if (xform->next == NULL)
  82                                 res =  OPENSSL_CHAIN_ONLY_CIPHER;
  83                         else if (xform->next->type == RTE_CRYPTO_SYM_XFORM_AUTH)
  84                                 res =  OPENSSL_CHAIN_CIPHER_AUTH;
  85                 }
  86                 if (xform->type == RTE_CRYPTO_SYM_XFORM_AEAD)
  87                         res = OPENSSL_CHAIN_COMBINED;
  88         }
  89
  90         return res;
  91 }
  92
  93 /** Get session cipher key from input cipher key */
  94 static void
  95 get_cipher_key(const uint8_t *input_key, int keylen, uint8_t *session_key)
  96 {
  97         memcpy(session_key, input_key, keylen);
  98 }
  99
 100 /** Get key ede 24 bytes standard from input key */
 101 static int
 102 get_cipher_key_ede(const uint8_t *key, int keylen, uint8_t *key_ede)
 103 {
 104         int res = 0;
 105
 106         /* Initialize keys - 24 bytes: [key1-key2-key3] */
 107         switch (keylen) {
 108         case 24:
 109                 memcpy(key_ede, key, 24);
 110                 break;
 111         case 16:
 112                 /* K3 = K1 */
 113                 memcpy(key_ede, key, 16);
 114                 memcpy(key_ede + 16, key, 8);
 115                 break;
 116         case 8:
 117                 /* K1 = K2 = K3 (DES compatibility) */
 118                 memcpy(key_ede, key, 8);
 119                 memcpy(key_ede + 8, key, 8);
 120                 memcpy(key_ede + 16, key, 8);
 121                 break;
 122         default:
 123                 OPENSSL_LOG(ERR, "Unsupported key size");
 124                 res = -EINVAL;
 125         }
 126
 127         return res;
 128 }
 129
 130 /** Get adequate openssl function for input cipher algorithm */
 131 static uint8_t
 132 get_cipher_algo(enum rte_crypto_cipher_algorithm sess_algo, size_t keylen,
 133                 const EVP_CIPHER **algo)
 134 {
 135         int res = 0;
 136
 137         if (algo != NULL) {
 138                 switch (sess_algo) {
 139                 case RTE_CRYPTO_CIPHER_3DES_CBC:
 140                         switch (keylen) {
 141                         case 8:
 142                                 *algo = EVP_des_cbc();
 143                                 break;
 144                         case 16:
 145                                 *algo = EVP_des_ede_cbc();
 146                                 break;
 147                         case 24:
 148                                 *algo = EVP_des_ede3_cbc();
 149                                 break;
 150                         default:
 151                                 res = -EINVAL;
 152                         }
 153                         break;
 154                 case RTE_CRYPTO_CIPHER_3DES_CTR:
 155                         break;
 156                 case RTE_CRYPTO_CIPHER_AES_CBC:
 157                         switch (keylen) {
 158                         case 16:
 159                                 *algo = EVP_aes_128_cbc();
 160                                 break;
 161                         case 24:
 162                                 *algo = EVP_aes_192_cbc();
 163                                 break;
 164                         case 32:
 165                                 *algo = EVP_aes_256_cbc();
 166                                 break;
 167                         default:
 168                                 res = -EINVAL;
 169                         }
 170                         break;
 171                 case RTE_CRYPTO_CIPHER_AES_CTR:
 172                         switch (keylen) {
 173                         case 16:
 174                                 *algo = EVP_aes_128_ctr();
 175                                 break;
 176                         case 24:
 177                                 *algo = EVP_aes_192_ctr();
 178                                 break;
 179                         case 32:
 180                                 *algo = EVP_aes_256_ctr();
 181                                 break;
 182                         default:
 183                                 res = -EINVAL;
 184                         }
 185                         break;
 186                 default:
 187                         res = -EINVAL;
 188                         break;
 189                 }
 190         } else {
 191                 res = -EINVAL;
 192         }
 193
 194         return res;
 195 }
 196
 197 /** Get adequate openssl function for input auth algorithm */
 198 static uint8_t
 199 get_auth_algo(enum rte_crypto_auth_algorithm sessalgo,
 200                 const EVP_MD **algo)
 201 {
 202         int res = 0;
 203
 204         if (algo != NULL) {
 205                 switch (sessalgo) {
 206                 case RTE_CRYPTO_AUTH_MD5:
 207                 case RTE_CRYPTO_AUTH_MD5_HMAC:
 208                         *algo = EVP_md5();
 209                         break;
 210                 case RTE_CRYPTO_AUTH_SHA1:
 211                 case RTE_CRYPTO_AUTH_SHA1_HMAC:
 212                         *algo = EVP_sha1();
 213                         break;
 214                 case RTE_CRYPTO_AUTH_SHA224:
 215                 case RTE_CRYPTO_AUTH_SHA224_HMAC:
 216                         *algo = EVP_sha224();
 217                         break;
 218                 case RTE_CRYPTO_AUTH_SHA256:
 219                 case RTE_CRYPTO_AUTH_SHA256_HMAC:
 220                         *algo = EVP_sha256();
 221                         break;
 222                 case RTE_CRYPTO_AUTH_SHA384:
 223                 case RTE_CRYPTO_AUTH_SHA384_HMAC:
 224                         *algo = EVP_sha384();
 225                         break;
 226                 case RTE_CRYPTO_AUTH_SHA512:
 227                 case RTE_CRYPTO_AUTH_SHA512_HMAC:
 228                         *algo = EVP_sha512();
 229                         break;
 230                 default:
 231                         res = -EINVAL;
 232                         break;
 233                 }
 234         } else {
 235                 res = -EINVAL;
 236         }
 237
 238         return res;
 239 }
 240
 241 /** Get adequate openssl function for input cipher algorithm */
 242 static uint8_t
 243 get_aead_algo(enum rte_crypto_aead_algorithm sess_algo, size_t keylen,
 244                 const EVP_CIPHER **algo)
 245 {
 246         int res = 0;
 247
 248         if (algo != NULL) {
 249                 switch (sess_algo) {
 250                 case RTE_CRYPTO_AEAD_AES_GCM:
 251                         switch (keylen) {
 252                         case 16:
 253                                 *algo = EVP_aes_128_gcm();
 254                                 break;
 255                         case 24:
 256                                 *algo = EVP_aes_192_gcm();
 257                                 break;
 258                         case 32:
 259                                 *algo = EVP_aes_256_gcm();
 260                                 break;
 261                         default:
 262                                 res = -EINVAL;
 263                         }
 264                         break;
 265                 case RTE_CRYPTO_AEAD_AES_CCM:
 266                         switch (keylen) {
 267                         case 16:
 268                                 *algo = EVP_aes_128_ccm();
 269                                 break;
 270                         case 24:
 271                                 *algo = EVP_aes_192_ccm();
 272                                 break;
 273                         case 32:
 274                                 *algo = EVP_aes_256_ccm();
 275                                 break;
 276                         default:
 277                                 res = -EINVAL;
 278                         }
 279                         break;
 280                 default:
 281                         res = -EINVAL;
 282                         break;
 283                 }
 284         } else {
 285                 res = -EINVAL;
 286         }
 287
 288         return res;
 289 }
 290
 291 /* Set session AEAD encryption parameters */
 292 static int
 293 openssl_set_sess_aead_enc_param(struct openssl_session *sess,
 294                 enum rte_crypto_aead_algorithm algo,
 295                 uint8_t tag_len, const uint8_t *key)
 296 {
 297         int iv_type = 0;
 298         unsigned int do_ccm;
 299
 300         sess->cipher.direction = RTE_CRYPTO_CIPHER_OP_ENCRYPT;
 301         sess->auth.operation = RTE_CRYPTO_AUTH_OP_GENERATE;
 302
 303         /* Select AEAD algo */
 304         switch (algo) {
 305         case RTE_CRYPTO_AEAD_AES_GCM:
 306                 iv_type = EVP_CTRL_GCM_SET_IVLEN;
 307                 if (tag_len != 16)
 308                         return -EINVAL;
 309                 do_ccm = 0;
 310                 break;
 311         case RTE_CRYPTO_AEAD_AES_CCM:
 312                 iv_type = EVP_CTRL_CCM_SET_IVLEN;
 313                 /* Digest size can be 4, 6, 8, 10, 12, 14 or 16 bytes */
 314                 if (tag_len < 4 || tag_len > 16 || (tag_len & 1) == 1)
 315                         return -EINVAL;
 316                 do_ccm = 1;
 317                 break;
 318         default:
 319                 return -ENOTSUP;
 320         }
 321
 322         sess->cipher.mode = OPENSSL_CIPHER_LIB;
 323         sess->cipher.ctx = EVP_CIPHER_CTX_new();
 324
 325         if (get_aead_algo(algo, sess->cipher.key.length,
 326                         &sess->cipher.evp_algo) != 0)
 327                 return -EINVAL;
 328
 329         get_cipher_key(key, sess->cipher.key.length, sess->cipher.key.data);
 330
 331         sess->chain_order = OPENSSL_CHAIN_COMBINED;
 332
 333         if (EVP_EncryptInit_ex(sess->cipher.ctx, sess->cipher.evp_algo,
 334                         NULL, NULL, NULL) <= 0)
 335                 return -EINVAL;
 336
 337         if (EVP_CIPHER_CTX_ctrl(sess->cipher.ctx, iv_type, sess->iv.length,
 338                         NULL) <= 0)
 339                 return -EINVAL;
 340
 341         if (do_ccm)
 342                 EVP_CIPHER_CTX_ctrl(sess->cipher.ctx, EVP_CTRL_CCM_SET_TAG,
 343                                 tag_len, NULL);
 344
 345         if (EVP_EncryptInit_ex(sess->cipher.ctx, NULL, NULL, key, NULL) <= 0)
 346                 return -EINVAL;
 347
 348         return 0;
 349 }
 350
 351 /* Set session AEAD decryption parameters */
 352 static int
 353 openssl_set_sess_aead_dec_param(struct openssl_session *sess,
 354                 enum rte_crypto_aead_algorithm algo,
 355                 uint8_t tag_len, const uint8_t *key)
 356 {
 357         int iv_type = 0;
 358         unsigned int do_ccm = 0;
 359
 360         sess->cipher.direction = RTE_CRYPTO_CIPHER_OP_DECRYPT;
 361         sess->auth.operation = RTE_CRYPTO_AUTH_OP_VERIFY;
 362
 363         /* Select AEAD algo */
 364         switch (algo) {
 365         case RTE_CRYPTO_AEAD_AES_GCM:
 366                 iv_type = EVP_CTRL_GCM_SET_IVLEN;
 367                 if (tag_len != 16)
 368                         return -EINVAL;
 369                 break;
 370         case RTE_CRYPTO_AEAD_AES_CCM:
 371                 iv_type = EVP_CTRL_CCM_SET_IVLEN;
 372                 /* Digest size can be 4, 6, 8, 10, 12, 14 or 16 bytes */
 373                 if (tag_len < 4 || tag_len > 16 || (tag_len & 1) == 1)
 374                         return -EINVAL;
 375                 do_ccm = 1;
 376                 break;
 377         default:
 378                 return -ENOTSUP;
 379         }
 380
 381         sess->cipher.mode = OPENSSL_CIPHER_LIB;
 382         sess->cipher.ctx = EVP_CIPHER_CTX_new();
 383
 384         if (get_aead_algo(algo, sess->cipher.key.length,
 385                         &sess->cipher.evp_algo) != 0)
 386                 return -EINVAL;
 387
 388         get_cipher_key(key, sess->cipher.key.length, sess->cipher.key.data);
 389
 390         sess->chain_order = OPENSSL_CHAIN_COMBINED;
 391
 392         if (EVP_DecryptInit_ex(sess->cipher.ctx, sess->cipher.evp_algo,
 393                         NULL, NULL, NULL) <= 0)
 394                 return -EINVAL;
 395
 396         if (EVP_CIPHER_CTX_ctrl(sess->cipher.ctx, iv_type,
 397                         sess->iv.length, NULL) <= 0)
 398                 return -EINVAL;
 399
 400         if (do_ccm)
 401                 EVP_CIPHER_CTX_ctrl(sess->cipher.ctx, EVP_CTRL_CCM_SET_TAG,
 402                                 tag_len, NULL);
 403
 404         if (EVP_DecryptInit_ex(sess->cipher.ctx, NULL, NULL, key, NULL) <= 0)
 405                 return -EINVAL;
 406
 407         return 0;
 408 }
 409
 410 /** Set session cipher parameters */
 411 static int
 412 openssl_set_session_cipher_parameters(struct openssl_session *sess,
 413                 const struct rte_crypto_sym_xform *xform)
 414 {
 415         /* Select cipher direction */
 416         sess->cipher.direction = xform->cipher.op;
 417         /* Select cipher key */
 418         sess->cipher.key.length = xform->cipher.key.length;
 419
 420         /* Set IV parameters */
 421         sess->iv.offset = xform->cipher.iv.offset;
 422         sess->iv.length = xform->cipher.iv.length;
 423
 424         /* Select cipher algo */
 425         switch (xform->cipher.algo) {
 426         case RTE_CRYPTO_CIPHER_3DES_CBC:
 427         case RTE_CRYPTO_CIPHER_AES_CBC:
 428         case RTE_CRYPTO_CIPHER_AES_CTR:
 429                 sess->cipher.mode = OPENSSL_CIPHER_LIB;
 430                 sess->cipher.algo = xform->cipher.algo;
 431                 sess->cipher.ctx = EVP_CIPHER_CTX_new();
 432
 433                 if (get_cipher_algo(sess->cipher.algo, sess->cipher.key.length,
 434                                 &sess->cipher.evp_algo) != 0)
 435                         return -EINVAL;
 436
 437                 get_cipher_key(xform->cipher.key.data, sess->cipher.key.length,
 438                         sess->cipher.key.data);
 439                 if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT) {
 440                         if (EVP_EncryptInit_ex(sess->cipher.ctx,
 441                                         sess->cipher.evp_algo,
 442                                         NULL, xform->cipher.key.data,
 443                                         NULL) != 1) {
 444                                 return -EINVAL;
 445                         }
 446                 } else if (sess->cipher.direction ==
 447                                 RTE_CRYPTO_CIPHER_OP_DECRYPT) {
 448                         if (EVP_DecryptInit_ex(sess->cipher.ctx,
 449                                         sess->cipher.evp_algo,
 450                                         NULL, xform->cipher.key.data,
 451                                         NULL) != 1) {
 452                                 return -EINVAL;
 453                         }
 454                 }
 455
 456                 break;
 457
 458         case RTE_CRYPTO_CIPHER_3DES_CTR:
 459                 sess->cipher.mode = OPENSSL_CIPHER_DES3CTR;
 460                 sess->cipher.ctx = EVP_CIPHER_CTX_new();
 461
 462                 if (get_cipher_key_ede(xform->cipher.key.data,
 463                                 sess->cipher.key.length,
 464                                 sess->cipher.key.data) != 0)
 465                         return -EINVAL;
 466                 break;
 467
 468         case RTE_CRYPTO_CIPHER_DES_CBC:
 469                 sess->cipher.algo = xform->cipher.algo;
 470                 sess->cipher.ctx = EVP_CIPHER_CTX_new();
 471                 sess->cipher.evp_algo = EVP_des_cbc();
 472
 473                 get_cipher_key(xform->cipher.key.data, sess->cipher.key.length,
 474                         sess->cipher.key.data);
 475                 if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT) {
 476                         if (EVP_EncryptInit_ex(sess->cipher.ctx,
 477                                         sess->cipher.evp_algo,
 478                                         NULL, xform->cipher.key.data,
 479                                         NULL) != 1) {
 480                                 return -EINVAL;
 481                         }
 482                 } else if (sess->cipher.direction ==
 483                                 RTE_CRYPTO_CIPHER_OP_DECRYPT) {
 484                         if (EVP_DecryptInit_ex(sess->cipher.ctx,
 485                                         sess->cipher.evp_algo,
 486                                         NULL, xform->cipher.key.data,
 487                                         NULL) != 1) {
 488                                 return -EINVAL;
 489                         }
 490                 }
 491
 492                 break;
 493
 494         case RTE_CRYPTO_CIPHER_DES_DOCSISBPI:
 495                 sess->cipher.algo = xform->cipher.algo;
 496                 sess->chain_order = OPENSSL_CHAIN_CIPHER_BPI;
 497                 sess->cipher.ctx = EVP_CIPHER_CTX_new();
 498                 sess->cipher.evp_algo = EVP_des_cbc();
 499
 500                 sess->cipher.bpi_ctx = EVP_CIPHER_CTX_new();
 501                 /* IV will be ECB encrypted whether direction is encrypt or decrypt */
 502                 if (EVP_EncryptInit_ex(sess->cipher.bpi_ctx, EVP_des_ecb(),
 503                                 NULL, xform->cipher.key.data, 0) != 1)
 504                         return -EINVAL;
 505
 506                 get_cipher_key(xform->cipher.key.data, sess->cipher.key.length,
 507                         sess->cipher.key.data);
 508                 if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT) {
 509                         if (EVP_EncryptInit_ex(sess->cipher.ctx,
 510                                         sess->cipher.evp_algo,
 511                                         NULL, xform->cipher.key.data,
 512                                         NULL) != 1) {
 513                                 return -EINVAL;
 514                         }
 515                 } else if (sess->cipher.direction ==
 516                                 RTE_CRYPTO_CIPHER_OP_DECRYPT) {
 517                         if (EVP_DecryptInit_ex(sess->cipher.ctx,
 518                                         sess->cipher.evp_algo,
 519                                         NULL, xform->cipher.key.data,
 520                                         NULL) != 1) {
 521                                 return -EINVAL;
 522                         }
 523                 }
 524
 525                 break;
 526         default:
 527                 sess->cipher.algo = RTE_CRYPTO_CIPHER_NULL;
 528                 return -ENOTSUP;
 529         }
 530
 531         return 0;
 532 }
 533
 534 /* Set session auth parameters */
 535 static int
 536 openssl_set_session_auth_parameters(struct openssl_session *sess,
 537                 const struct rte_crypto_sym_xform *xform)
 538 {
 539         /* Select auth generate/verify */
 540         sess->auth.operation = xform->auth.op;
 541         sess->auth.algo = xform->auth.algo;
 542
 543         sess->auth.digest_length = xform->auth.digest_length;
 544
 545         /* Select auth algo */
 546         switch (xform->auth.algo) {
 547         case RTE_CRYPTO_AUTH_AES_GMAC:
 548                 /*
 549                  * OpenSSL requires GMAC to be a GCM operation
 550                  * with no cipher data length
 551                  */
 552                 sess->cipher.key.length = xform->auth.key.length;
 553
 554                 /* Set IV parameters */
 555                 sess->iv.offset = xform->auth.iv.offset;
 556                 sess->iv.length = xform->auth.iv.length;
 557
 558                 if (sess->auth.operation == RTE_CRYPTO_AUTH_OP_GENERATE)
 559                         return openssl_set_sess_aead_enc_param(sess,
 560                                                 RTE_CRYPTO_AEAD_AES_GCM,
 561                                                 xform->auth.digest_length,
 562                                                 xform->auth.key.data);
 563                 else
 564                         return openssl_set_sess_aead_dec_param(sess,
 565                                                 RTE_CRYPTO_AEAD_AES_GCM,
 566                                                 xform->auth.digest_length,
 567                                                 xform->auth.key.data);
 568                 break;
 569
 570         case RTE_CRYPTO_AUTH_MD5:
 571         case RTE_CRYPTO_AUTH_SHA1:
 572         case RTE_CRYPTO_AUTH_SHA224:
 573         case RTE_CRYPTO_AUTH_SHA256:
 574         case RTE_CRYPTO_AUTH_SHA384:
 575         case RTE_CRYPTO_AUTH_SHA512:
 576                 sess->auth.mode = OPENSSL_AUTH_AS_AUTH;
 577                 if (get_auth_algo(xform->auth.algo,
 578                                 &sess->auth.auth.evp_algo) != 0)
 579                         return -EINVAL;
 580                 sess->auth.auth.ctx = EVP_MD_CTX_create();
 581                 break;
 582
 583         case RTE_CRYPTO_AUTH_MD5_HMAC:
 584         case RTE_CRYPTO_AUTH_SHA1_HMAC:
 585         case RTE_CRYPTO_AUTH_SHA224_HMAC:
 586         case RTE_CRYPTO_AUTH_SHA256_HMAC:
 587         case RTE_CRYPTO_AUTH_SHA384_HMAC:
 588         case RTE_CRYPTO_AUTH_SHA512_HMAC:
 589                 sess->auth.mode = OPENSSL_AUTH_AS_HMAC;
 590                 sess->auth.hmac.ctx = HMAC_CTX_new();
 591                 if (get_auth_algo(xform->auth.algo,
 592                                 &sess->auth.hmac.evp_algo) != 0)
 593                         return -EINVAL;
 594
 595                 if (HMAC_Init_ex(sess->auth.hmac.ctx,
 596                                 xform->auth.key.data,
 597                                 xform->auth.key.length,
 598                                 sess->auth.hmac.evp_algo, NULL) != 1)
 599                         return -EINVAL;
 600                 break;
 601
 602         default:
 603                 return -ENOTSUP;
 604         }
 605
 606         return 0;
 607 }
 608
 609 /* Set session AEAD parameters */
 610 static int
 611 openssl_set_session_aead_parameters(struct openssl_session *sess,
 612                 const struct rte_crypto_sym_xform *xform)
 613 {
 614         /* Select cipher key */
 615         sess->cipher.key.length = xform->aead.key.length;
 616
 617         /* Set IV parameters */
 618         if (xform->aead.algo == RTE_CRYPTO_AEAD_AES_CCM)
 619                 /*
 620                  * For AES-CCM, the actual IV is placed
 621                  * one byte after the start of the IV field,
 622                  * according to the API.
 623                  */
 624                 sess->iv.offset = xform->aead.iv.offset + 1;
 625         else
 626                 sess->iv.offset = xform->aead.iv.offset;
 627
 628         sess->iv.length = xform->aead.iv.length;
 629
 630         sess->auth.aad_length = xform->aead.aad_length;
 631         sess->auth.digest_length = xform->aead.digest_length;
 632
 633         sess->aead_algo = xform->aead.algo;
 634         /* Select cipher direction */
 635         if (xform->aead.op == RTE_CRYPTO_AEAD_OP_ENCRYPT)
 636                 return openssl_set_sess_aead_enc_param(sess, xform->aead.algo,
 637                                 xform->aead.digest_length, xform->aead.key.data);
 638         else
 639                 return openssl_set_sess_aead_dec_param(sess, xform->aead.algo,
 640                                 xform->aead.digest_length, xform->aead.key.data);
 641 }
 642
 643 /** Parse crypto xform chain and set private session parameters */
 644 int
 645 openssl_set_session_parameters(struct openssl_session *sess,
 646                 const struct rte_crypto_sym_xform *xform)
 647 {
 648         const struct rte_crypto_sym_xform *cipher_xform = NULL;
 649         const struct rte_crypto_sym_xform *auth_xform = NULL;
 650         const struct rte_crypto_sym_xform *aead_xform = NULL;
 651         int ret;
 652
 653         sess->chain_order = openssl_get_chain_order(xform);
 654         switch (sess->chain_order) {
 655         case OPENSSL_CHAIN_ONLY_CIPHER:
 656                 cipher_xform = xform;
 657                 break;
 658         case OPENSSL_CHAIN_ONLY_AUTH:
 659                 auth_xform = xform;
 660                 break;
 661         case OPENSSL_CHAIN_CIPHER_AUTH:
 662                 cipher_xform = xform;
 663                 auth_xform = xform->next;
 664                 break;
 665         case OPENSSL_CHAIN_AUTH_CIPHER:
 666                 auth_xform = xform;
 667                 cipher_xform = xform->next;
 668                 break;
 669         case OPENSSL_CHAIN_COMBINED:
 670                 aead_xform = xform;
 671                 break;
 672         default:
 673                 return -EINVAL;
 674         }
 675
 676         /* Default IV length = 0 */
 677         sess->iv.length = 0;
 678
 679         /* cipher_xform must be check before auth_xform */
 680         if (cipher_xform) {
 681                 ret = openssl_set_session_cipher_parameters(
 682                                 sess, cipher_xform);
 683                 if (ret != 0) {
 684                         OPENSSL_LOG(ERR,
 685                                 "Invalid/unsupported cipher parameters");
 686                         return ret;
 687                 }
 688         }
 689
 690         if (auth_xform) {
 691                 ret = openssl_set_session_auth_parameters(sess, auth_xform);
 692                 if (ret != 0) {
 693                         OPENSSL_LOG(ERR,
 694                                 "Invalid/unsupported auth parameters");
 695                         return ret;
 696                 }
 697         }
 698
 699         if (aead_xform) {
 700                 ret = openssl_set_session_aead_parameters(sess, aead_xform);
 701                 if (ret != 0) {
 702                         OPENSSL_LOG(ERR,
 703                                 "Invalid/unsupported AEAD parameters");
 704                         return ret;
 705                 }
 706         }
 707
 708         return 0;
 709 }
 710
 711 /** Reset private session parameters */
 712 void
 713 openssl_reset_session(struct openssl_session *sess)
 714 {
 715         EVP_CIPHER_CTX_free(sess->cipher.ctx);
 716
 717         if (sess->chain_order == OPENSSL_CHAIN_CIPHER_BPI)
 718                 EVP_CIPHER_CTX_free(sess->cipher.bpi_ctx);
 719
 720         switch (sess->auth.mode) {
 721         case OPENSSL_AUTH_AS_AUTH:
 722                 EVP_MD_CTX_destroy(sess->auth.auth.ctx);
 723                 break;
 724         case OPENSSL_AUTH_AS_HMAC:
 725                 EVP_PKEY_free(sess->auth.hmac.pkey);
 726                 HMAC_CTX_free(sess->auth.hmac.ctx);
 727                 break;
 728         default:
 729                 break;
 730         }
 731 }
 732
 733 /** Provide session for operation */
 734 static void *
 735 get_session(struct openssl_qp *qp, struct rte_crypto_op *op)
 736 {
 737         struct openssl_session *sess = NULL;
 738         struct openssl_asym_session *asym_sess = NULL;
 739
 740         if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION) {
 741                 if (op->type == RTE_CRYPTO_OP_TYPE_SYMMETRIC) {
 742                         /* get existing session */
 743                         if (likely(op->sym->session != NULL))
 744                                 sess = (struct openssl_session *)
 745                                                 get_sym_session_private_data(
 746                                                 op->sym->session,
 747                                                 cryptodev_driver_id);
 748                 } else {
 749                         if (likely(op->asym->session != NULL))
 750                                 asym_sess = (struct openssl_asym_session *)
 751                                                 op->asym->session->sess_private_data;
 752                         if (asym_sess == NULL)
 753                                 op->status =
 754                                         RTE_CRYPTO_OP_STATUS_INVALID_SESSION;
 755                         return asym_sess;
 756                 }
 757         } else {
 758                 /* sessionless asymmetric not supported */
 759                 if (op->type == RTE_CRYPTO_OP_TYPE_ASYMMETRIC)
 760                         return NULL;
 761
 762                 /* provide internal session */
 763                 void *_sess = rte_cryptodev_sym_session_create(qp->sess_mp);
 764                 void *_sess_private_data = NULL;
 765
 766                 if (_sess == NULL)
 767                         return NULL;
 768
 769                 if (rte_mempool_get(qp->sess_mp_priv,
 770                                 (void **)&_sess_private_data))
 771                         return NULL;
 772
 773                 sess = (struct openssl_session *)_sess_private_data;
 774
 775                 if (unlikely(openssl_set_session_parameters(sess,
 776                                 op->sym->xform) != 0)) {
 777                         rte_mempool_put(qp->sess_mp, _sess);
 778                         rte_mempool_put(qp->sess_mp_priv, _sess_private_data);
 779                         sess = NULL;
 780                 }
 781                 op->sym->session = (struct rte_cryptodev_sym_session *)_sess;
 782                 set_sym_session_private_data(op->sym->session,
 783                                 cryptodev_driver_id, _sess_private_data);
 784         }
 785
 786         if (sess == NULL)
 787                 op->status = RTE_CRYPTO_OP_STATUS_INVALID_SESSION;
 788
 789         return sess;
 790 }
 791
 792 /*
 793  *------------------------------------------------------------------------------
 794  * Process Operations
 795  *------------------------------------------------------------------------------
 796  */
 797 static inline int
 798 process_openssl_encryption_update(struct rte_mbuf *mbuf_src, int offset,
 799                 uint8_t **dst, int srclen, EVP_CIPHER_CTX *ctx, uint8_t inplace)
 800 {
 801         struct rte_mbuf *m;
 802         int dstlen;
 803         int l, n = srclen;
 804         uint8_t *src, temp[EVP_CIPHER_CTX_block_size(ctx)];
 805
 806         for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m);
 807                         m = m->next)
 808                 offset -= rte_pktmbuf_data_len(m);
 809
 810         if (m == 0)
 811                 return -1;
 812
 813         src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset);
 814         if (inplace)
 815                 *dst = src;
 816
 817         l = rte_pktmbuf_data_len(m) - offset;
 818         if (srclen <= l) {
 819                 if (EVP_EncryptUpdate(ctx, *dst, &dstlen, src, srclen) <= 0)
 820                         return -1;
 821                 *dst += l;
 822                 return 0;
 823         }
 824
 825         if (EVP_EncryptUpdate(ctx, *dst, &dstlen, src, l) <= 0)
 826                 return -1;
 827
 828         *dst += dstlen;
 829         n -= l;
 830
 831         for (m = m->next; (m != NULL) && (n > 0); m = m->next) {
 832                 uint8_t diff = l - dstlen, rem;
 833
 834                 src = rte_pktmbuf_mtod(m, uint8_t *);
 835                 l = RTE_MIN(rte_pktmbuf_data_len(m), n);
 836                 if (diff && inplace) {
 837                         rem = RTE_MIN(l,
 838                                 (EVP_CIPHER_CTX_block_size(ctx) - diff));
 839                         if (EVP_EncryptUpdate(ctx, temp,
 840                                                 &dstlen, src, rem) <= 0)
 841                                 return -1;
 842                         n -= rem;
 843                         rte_memcpy(*dst, temp, diff);
 844                         rte_memcpy(src, temp + diff, rem);
 845                         src += rem;
 846                         l -= rem;
 847                 }
 848                 if (inplace)
 849                         *dst = src;
 850                 if (EVP_EncryptUpdate(ctx, *dst, &dstlen, src, l) <= 0)
 851                         return -1;
 852                 *dst += dstlen;
 853                 n -= l;
 854         }
 855
 856         return 0;
 857 }
 858
 859 static inline int
 860 process_openssl_decryption_update(struct rte_mbuf *mbuf_src, int offset,
 861                 uint8_t **dst, int srclen, EVP_CIPHER_CTX *ctx, uint8_t inplace)
 862 {
 863         struct rte_mbuf *m;
 864         int dstlen;
 865         int l, n = srclen;
 866         uint8_t *src, temp[EVP_CIPHER_CTX_block_size(ctx)];
 867
 868         for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m);
 869                         m = m->next)
 870                 offset -= rte_pktmbuf_data_len(m);
 871
 872         if (m == 0)
 873                 return -1;
 874
 875         src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset);
 876         if (inplace)
 877                 *dst = src;
 878
 879         l = rte_pktmbuf_data_len(m) - offset;
 880         if (srclen <= l) {
 881                 if (EVP_DecryptUpdate(ctx, *dst, &dstlen, src, srclen) <= 0)
 882                         return -1;
 883                 *dst += l;
 884                 return 0;
 885         }
 886
 887         if (EVP_DecryptUpdate(ctx, *dst, &dstlen, src, l) <= 0)
 888                 return -1;
 889
 890         *dst += dstlen;
 891         n -= l;
 892
 893         for (m = m->next; (m != NULL) && (n > 0); m = m->next) {
 894                 uint8_t diff = l - dstlen, rem;
 895
 896                 src = rte_pktmbuf_mtod(m, uint8_t *);
 897                 l = RTE_MIN(rte_pktmbuf_data_len(m), n);
 898                 if (diff && inplace) {
 899                         rem = RTE_MIN(l,
 900                                 (EVP_CIPHER_CTX_block_size(ctx) - diff));
 901                         if (EVP_DecryptUpdate(ctx, temp,
 902                                                 &dstlen, src, rem) <= 0)
 903                                 return -1;
 904                         n -= rem;
 905                         rte_memcpy(*dst, temp, diff);
 906                         rte_memcpy(src, temp + diff, rem);
 907                         src += rem;
 908                         l -= rem;
 909                 }
 910                 if (inplace)
 911                         *dst = src;
 912                 if (EVP_DecryptUpdate(ctx, *dst, &dstlen, src, l) <= 0)
 913                         return -1;
 914                 *dst += dstlen;
 915                 n -= l;
 916         }
 917
 918         return 0;
 919 }
 920
 921 /** Process standard openssl cipher encryption */
 922 static int
 923 process_openssl_cipher_encrypt(struct rte_mbuf *mbuf_src, uint8_t *dst,
 924                 int offset, uint8_t *iv, int srclen, EVP_CIPHER_CTX *ctx,
 925                 uint8_t inplace)
 926 {
 927         int totlen;
 928
 929         if (EVP_EncryptInit_ex(ctx, NULL, NULL, NULL, iv) <= 0)
 930                 goto process_cipher_encrypt_err;
 931
 932         EVP_CIPHER_CTX_set_padding(ctx, 0);
 933
 934         if (process_openssl_encryption_update(mbuf_src, offset, &dst,
 935                         srclen, ctx, inplace))
 936                 goto process_cipher_encrypt_err;
 937
 938         if (EVP_EncryptFinal_ex(ctx, dst, &totlen) <= 0)
 939                 goto process_cipher_encrypt_err;
 940
 941         return 0;
 942
 943 process_cipher_encrypt_err:
 944         OPENSSL_LOG(ERR, "Process openssl cipher encrypt failed");
 945         return -EINVAL;
 946 }
 947
 948 /** Process standard openssl cipher encryption */
 949 static int
 950 process_openssl_cipher_bpi_encrypt(uint8_t *src, uint8_t *dst,
 951                 uint8_t *iv, int srclen,
 952                 EVP_CIPHER_CTX *ctx)
 953 {
 954         uint8_t i;
 955         uint8_t encrypted_iv[DES_BLOCK_SIZE];
 956         int encrypted_ivlen;
 957
 958         if (EVP_EncryptUpdate(ctx, encrypted_iv, &encrypted_ivlen,
 959                         iv, DES_BLOCK_SIZE) <= 0)
 960                 goto process_cipher_encrypt_err;
 961
 962         for (i = 0; i < srclen; i++)
 963                 *(dst + i) = *(src + i) ^ (encrypted_iv[i]);
 964
 965         return 0;
 966
 967 process_cipher_encrypt_err:
 968         OPENSSL_LOG(ERR, "Process openssl cipher bpi encrypt failed");
 969         return -EINVAL;
 970 }
 971 /** Process standard openssl cipher decryption */
 972 static int
 973 process_openssl_cipher_decrypt(struct rte_mbuf *mbuf_src, uint8_t *dst,
 974                 int offset, uint8_t *iv, int srclen, EVP_CIPHER_CTX *ctx,
 975                 uint8_t inplace)
 976 {
 977         int totlen;
 978
 979         if (EVP_DecryptInit_ex(ctx, NULL, NULL, NULL, iv) <= 0)
 980                 goto process_cipher_decrypt_err;
 981
 982         EVP_CIPHER_CTX_set_padding(ctx, 0);
 983
 984         if (process_openssl_decryption_update(mbuf_src, offset, &dst,
 985                         srclen, ctx, inplace))
 986                 goto process_cipher_decrypt_err;
 987
 988         if (EVP_DecryptFinal_ex(ctx, dst, &totlen) <= 0)
 989                 goto process_cipher_decrypt_err;
 990         return 0;
 991
 992 process_cipher_decrypt_err:
 993         OPENSSL_LOG(ERR, "Process openssl cipher decrypt failed");
 994         return -EINVAL;
 995 }
 996
 997 /** Process cipher des 3 ctr encryption, decryption algorithm */
 998 static int
 999 process_openssl_cipher_des3ctr(struct rte_mbuf *mbuf_src, uint8_t *dst,
1000                 int offset, uint8_t *iv, uint8_t *key, int srclen,
1001                 EVP_CIPHER_CTX *ctx)
1002 {
1003         uint8_t ebuf[8], ctr[8];
1004         int unused, n;
1005         struct rte_mbuf *m;
1006         uint8_t *src;
1007         int l;
1008
1009         for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m);
1010                         m = m->next)
1011                 offset -= rte_pktmbuf_data_len(m);
1012
1013         if (m == 0)
1014                 goto process_cipher_des3ctr_err;
1015
1016         src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset);
1017         l = rte_pktmbuf_data_len(m) - offset;
1018
1019         /* We use 3DES encryption also for decryption.
1020          * IV is not important for 3DES ecb
1021          */
1022         if (EVP_EncryptInit_ex(ctx, EVP_des_ede3_ecb(), NULL, key, NULL) <= 0)
1023                 goto process_cipher_des3ctr_err;
1024
1025         memcpy(ctr, iv, 8);
1026
1027         for (n = 0; n < srclen; n++) {
1028                 if (n % 8 == 0) {
1029                         if (EVP_EncryptUpdate(ctx,
1030                                         (unsigned char *)&ebuf, &unused,
1031                                         (const unsigned char *)&ctr, 8) <= 0)
1032                                 goto process_cipher_des3ctr_err;
1033                         ctr_inc(ctr);
1034                 }
1035                 dst[n] = *(src++) ^ ebuf[n % 8];
1036
1037                 l--;
1038                 if (!l) {
1039                         m = m->next;
1040                         if (m) {
1041                                 src = rte_pktmbuf_mtod(m, uint8_t *);
1042                                 l = rte_pktmbuf_data_len(m);
1043                         }
1044                 }
1045         }
1046
1047         return 0;
1048
1049 process_cipher_des3ctr_err:
1050         OPENSSL_LOG(ERR, "Process openssl cipher des 3 ede ctr failed");
1051         return -EINVAL;
1052 }
1053
1054 /** Process AES-GCM encrypt algorithm */
1055 static int
1056 process_openssl_auth_encryption_gcm(struct rte_mbuf *mbuf_src, int offset,
1057                 int srclen, uint8_t *aad, int aadlen, uint8_t *iv,
1058                 uint8_t *dst, uint8_t *tag, EVP_CIPHER_CTX *ctx)
1059 {
1060         int len = 0, unused = 0;
1061         uint8_t empty[] = {};
1062
1063         if (EVP_EncryptInit_ex(ctx, NULL, NULL, NULL, iv) <= 0)
1064                 goto process_auth_encryption_gcm_err;
1065
1066         if (aadlen > 0)
1067                 if (EVP_EncryptUpdate(ctx, NULL, &len, aad, aadlen) <= 0)
1068                         goto process_auth_encryption_gcm_err;
1069
1070         if (srclen > 0)
1071                 if (process_openssl_encryption_update(mbuf_src, offset, &dst,
1072                                 srclen, ctx, 0))
1073                         goto process_auth_encryption_gcm_err;
1074
1075         /* Workaround open ssl bug in version less then 1.0.1f */
1076         if (EVP_EncryptUpdate(ctx, empty, &unused, empty, 0) <= 0)
1077                 goto process_auth_encryption_gcm_err;
1078
1079         if (EVP_EncryptFinal_ex(ctx, dst, &len) <= 0)
1080                 goto process_auth_encryption_gcm_err;
1081
1082         if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_GET_TAG, 16, tag) <= 0)
1083                 goto process_auth_encryption_gcm_err;
1084
1085         return 0;
1086
1087 process_auth_encryption_gcm_err:
1088         OPENSSL_LOG(ERR, "Process openssl auth encryption gcm failed");
1089         return -EINVAL;
1090 }
1091
1092 /** Process AES-CCM encrypt algorithm */
1093 static int
1094 process_openssl_auth_encryption_ccm(struct rte_mbuf *mbuf_src, int offset,
1095                 int srclen, uint8_t *aad, int aadlen, uint8_t *iv,
1096                 uint8_t *dst, uint8_t *tag, uint8_t taglen, EVP_CIPHER_CTX *ctx)
1097 {
1098         int len = 0;
1099
1100         if (EVP_EncryptInit_ex(ctx, NULL, NULL, NULL, iv) <= 0)
1101                 goto process_auth_encryption_ccm_err;
1102
1103         if (EVP_EncryptUpdate(ctx, NULL, &len, NULL, srclen) <= 0)
1104                 goto process_auth_encryption_ccm_err;
1105
1106         if (aadlen > 0)
1107                 /*
1108                  * For AES-CCM, the actual AAD is placed
1109                  * 18 bytes after the start of the AAD field,
1110                  * according to the API.
1111                  */
1112                 if (EVP_EncryptUpdate(ctx, NULL, &len, aad + 18, aadlen) <= 0)
1113                         goto process_auth_encryption_ccm_err;
1114
1115         if (srclen >= 0)
1116                 if (process_openssl_encryption_update(mbuf_src, offset, &dst,
1117                                 srclen, ctx, 0))
1118                         goto process_auth_encryption_ccm_err;
1119
1120         if (EVP_EncryptFinal_ex(ctx, dst, &len) <= 0)
1121                 goto process_auth_encryption_ccm_err;
1122
1123         if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_CCM_GET_TAG, taglen, tag) <= 0)
1124                 goto process_auth_encryption_ccm_err;
1125
1126         return 0;
1127
1128 process_auth_encryption_ccm_err:
1129         OPENSSL_LOG(ERR, "Process openssl auth encryption ccm failed");
1130         return -EINVAL;
1131 }
1132
1133 /** Process AES-GCM decrypt algorithm */
1134 static int
1135 process_openssl_auth_decryption_gcm(struct rte_mbuf *mbuf_src, int offset,
1136                 int srclen, uint8_t *aad, int aadlen, uint8_t *iv,
1137                 uint8_t *dst, uint8_t *tag, EVP_CIPHER_CTX *ctx)
1138 {
1139         int len = 0, unused = 0;
1140         uint8_t empty[] = {};
1141
1142         if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_TAG, 16, tag) <= 0)
1143                 goto process_auth_decryption_gcm_err;
1144
1145         if (EVP_DecryptInit_ex(ctx, NULL, NULL, NULL, iv) <= 0)
1146                 goto process_auth_decryption_gcm_err;
1147
1148         if (aadlen > 0)
1149                 if (EVP_DecryptUpdate(ctx, NULL, &len, aad, aadlen) <= 0)
1150                         goto process_auth_decryption_gcm_err;
1151
1152         if (srclen > 0)
1153                 if (process_openssl_decryption_update(mbuf_src, offset, &dst,
1154                                 srclen, ctx, 0))
1155                         goto process_auth_decryption_gcm_err;
1156
1157         /* Workaround open ssl bug in version less then 1.0.1f */
1158         if (EVP_DecryptUpdate(ctx, empty, &unused, empty, 0) <= 0)
1159                 goto process_auth_decryption_gcm_err;
1160
1161         if (EVP_DecryptFinal_ex(ctx, dst, &len) <= 0)
1162                 return -EFAULT;
1163
1164         return 0;
1165
1166 process_auth_decryption_gcm_err:
1167         OPENSSL_LOG(ERR, "Process openssl auth decryption gcm failed");
1168         return -EINVAL;
1169 }
1170
1171 /** Process AES-CCM decrypt algorithm */
1172 static int
1173 process_openssl_auth_decryption_ccm(struct rte_mbuf *mbuf_src, int offset,
1174                 int srclen, uint8_t *aad, int aadlen, uint8_t *iv,
1175                 uint8_t *dst, uint8_t *tag, uint8_t tag_len,
1176                 EVP_CIPHER_CTX *ctx)
1177 {
1178         int len = 0;
1179
1180         if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_CCM_SET_TAG, tag_len, tag) <= 0)
1181                 goto process_auth_decryption_ccm_err;
1182
1183         if (EVP_DecryptInit_ex(ctx, NULL, NULL, NULL, iv) <= 0)
1184                 goto process_auth_decryption_ccm_err;
1185
1186         if (EVP_DecryptUpdate(ctx, NULL, &len, NULL, srclen) <= 0)
1187                 goto process_auth_decryption_ccm_err;
1188
1189         if (aadlen > 0)
1190                 /*
1191                  * For AES-CCM, the actual AAD is placed
1192                  * 18 bytes after the start of the AAD field,
1193                  * according to the API.
1194                  */
1195                 if (EVP_DecryptUpdate(ctx, NULL, &len, aad + 18, aadlen) <= 0)
1196                         goto process_auth_decryption_ccm_err;
1197
1198         if (srclen >= 0)
1199                 if (process_openssl_decryption_update(mbuf_src, offset, &dst,
1200                                 srclen, ctx, 0))
1201                         return -EFAULT;
1202
1203         return 0;
1204
1205 process_auth_decryption_ccm_err:
1206         OPENSSL_LOG(ERR, "Process openssl auth decryption ccm failed");
1207         return -EINVAL;
1208 }
1209
1210 /** Process standard openssl auth algorithms */
1211 static int
1212 process_openssl_auth(struct rte_mbuf *mbuf_src, uint8_t *dst, int offset,
1213                 __rte_unused uint8_t *iv, __rte_unused EVP_PKEY * pkey,
1214                 int srclen, EVP_MD_CTX *ctx, const EVP_MD *algo)
1215 {
1216         size_t dstlen;
1217         struct rte_mbuf *m;
1218         int l, n = srclen;
1219         uint8_t *src;
1220
1221         for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m);
1222                         m = m->next)
1223                 offset -= rte_pktmbuf_data_len(m);
1224
1225         if (m == 0)
1226                 goto process_auth_err;
1227
1228         if (EVP_DigestInit_ex(ctx, algo, NULL) <= 0)
1229                 goto process_auth_err;
1230
1231         src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset);
1232
1233         l = rte_pktmbuf_data_len(m) - offset;
1234         if (srclen <= l) {
1235                 if (EVP_DigestUpdate(ctx, (char *)src, srclen) <= 0)
1236                         goto process_auth_err;
1237                 goto process_auth_final;
1238         }
1239
1240         if (EVP_DigestUpdate(ctx, (char *)src, l) <= 0)
1241                 goto process_auth_err;
1242
1243         n -= l;
1244
1245         for (m = m->next; (m != NULL) && (n > 0); m = m->next) {
1246                 src = rte_pktmbuf_mtod(m, uint8_t *);
1247                 l = rte_pktmbuf_data_len(m) < n ? rte_pktmbuf_data_len(m) : n;
1248                 if (EVP_DigestUpdate(ctx, (char *)src, l) <= 0)
1249                         goto process_auth_err;
1250                 n -= l;
1251         }
1252
1253 process_auth_final:
1254         if (EVP_DigestFinal_ex(ctx, dst, (unsigned int *)&dstlen) <= 0)
1255                 goto process_auth_err;
1256         return 0;
1257
1258 process_auth_err:
1259         OPENSSL_LOG(ERR, "Process openssl auth failed");
1260         return -EINVAL;
1261 }
1262
1263 /** Process standard openssl auth algorithms with hmac */
1264 static int
1265 process_openssl_auth_hmac(struct rte_mbuf *mbuf_src, uint8_t *dst, int offset,
1266                 int srclen, HMAC_CTX *ctx)
1267 {
1268         unsigned int dstlen;
1269         struct rte_mbuf *m;
1270         int l, n = srclen;
1271         uint8_t *src;
1272
1273         for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m);
1274                         m = m->next)
1275                 offset -= rte_pktmbuf_data_len(m);
1276
1277         if (m == 0)
1278                 goto process_auth_err;
1279
1280         src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset);
1281
1282         l = rte_pktmbuf_data_len(m) - offset;
1283         if (srclen <= l) {
1284                 if (HMAC_Update(ctx, (unsigned char *)src, srclen) != 1)
1285                         goto process_auth_err;
1286                 goto process_auth_final;
1287         }
1288
1289         if (HMAC_Update(ctx, (unsigned char *)src, l) != 1)
1290                 goto process_auth_err;
1291
1292         n -= l;
1293
1294         for (m = m->next; (m != NULL) && (n > 0); m = m->next) {
1295                 src = rte_pktmbuf_mtod(m, uint8_t *);
1296                 l = rte_pktmbuf_data_len(m) < n ? rte_pktmbuf_data_len(m) : n;
1297                 if (HMAC_Update(ctx, (unsigned char *)src, l) != 1)
1298                         goto process_auth_err;
1299                 n -= l;
1300         }
1301
1302 process_auth_final:
1303         if (HMAC_Final(ctx, dst, &dstlen) != 1)
1304                 goto process_auth_err;
1305
1306         if (unlikely(HMAC_Init_ex(ctx, NULL, 0, NULL, NULL) != 1))
1307                 goto process_auth_err;
1308
1309         return 0;
1310
1311 process_auth_err:
1312         OPENSSL_LOG(ERR, "Process openssl auth failed");
1313         return -EINVAL;
1314 }
1315
1316 /*----------------------------------------------------------------------------*/
1317
1318 /** Process auth/cipher combined operation */
1319 static void
1320 process_openssl_combined_op
1321                 (struct rte_crypto_op *op, struct openssl_session *sess,
1322                 struct rte_mbuf *mbuf_src, struct rte_mbuf *mbuf_dst)
1323 {
1324         /* cipher */
1325         uint8_t *dst = NULL, *iv, *tag, *aad;
1326         int srclen, aadlen, status = -1;
1327         uint32_t offset;
1328         uint8_t taglen;
1329         EVP_CIPHER_CTX *ctx_copy;
1330
1331         /*
1332          * Segmented destination buffer is not supported for
1333          * encryption/decryption
1334          */
1335         if (!rte_pktmbuf_is_contiguous(mbuf_dst)) {
1336                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1337                 return;
1338         }
1339
1340         iv = rte_crypto_op_ctod_offset(op, uint8_t *,
1341                         sess->iv.offset);
1342         if (sess->auth.algo == RTE_CRYPTO_AUTH_AES_GMAC) {
1343                 srclen = 0;
1344                 offset = op->sym->auth.data.offset;
1345                 aadlen = op->sym->auth.data.length;
1346                 aad = rte_pktmbuf_mtod_offset(mbuf_src, uint8_t *,
1347                                 op->sym->auth.data.offset);
1348                 tag = op->sym->auth.digest.data;
1349                 if (tag == NULL)
1350                         tag = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
1351                                 offset + aadlen);
1352         } else {
1353                 srclen = op->sym->aead.data.length;
1354                 dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
1355                                 op->sym->aead.data.offset);
1356                 offset = op->sym->aead.data.offset;
1357                 aad = op->sym->aead.aad.data;
1358                 aadlen = sess->auth.aad_length;
1359                 tag = op->sym->aead.digest.data;
1360                 if (tag == NULL)
1361                         tag = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
1362                                 offset + srclen);
1363         }
1364
1365         taglen = sess->auth.digest_length;
1366         ctx_copy = EVP_CIPHER_CTX_new();
1367         EVP_CIPHER_CTX_copy(ctx_copy, sess->cipher.ctx);
1368
1369         if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT) {
1370                 if (sess->auth.algo == RTE_CRYPTO_AUTH_AES_GMAC ||
1371                                 sess->aead_algo == RTE_CRYPTO_AEAD_AES_GCM)
1372                         status = process_openssl_auth_encryption_gcm(
1373                                         mbuf_src, offset, srclen,
1374                                         aad, aadlen, iv,
1375                                         dst, tag, ctx_copy);
1376                 else
1377                         status = process_openssl_auth_encryption_ccm(
1378                                         mbuf_src, offset, srclen,
1379                                         aad, aadlen, iv,
1380                                         dst, tag, taglen, ctx_copy);
1381
1382         } else {
1383                 if (sess->auth.algo == RTE_CRYPTO_AUTH_AES_GMAC ||
1384                                 sess->aead_algo == RTE_CRYPTO_AEAD_AES_GCM)
1385                         status = process_openssl_auth_decryption_gcm(
1386                                         mbuf_src, offset, srclen,
1387                                         aad, aadlen, iv,
1388                                         dst, tag, ctx_copy);
1389                 else
1390                         status = process_openssl_auth_decryption_ccm(
1391                                         mbuf_src, offset, srclen,
1392                                         aad, aadlen, iv,
1393                                         dst, tag, taglen, ctx_copy);
1394         }
1395
1396         EVP_CIPHER_CTX_free(ctx_copy);
1397         if (status != 0) {
1398                 if (status == (-EFAULT) &&
1399                                 sess->auth.operation ==
1400                                                 RTE_CRYPTO_AUTH_OP_VERIFY)
1401                         op->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
1402                 else
1403                         op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1404         }
1405 }
1406
1407 /** Process cipher operation */
1408 static void
1409 process_openssl_cipher_op
1410                 (struct rte_crypto_op *op, struct openssl_session *sess,
1411                 struct rte_mbuf *mbuf_src, struct rte_mbuf *mbuf_dst)
1412 {
1413         uint8_t *dst, *iv;
1414         int srclen, status;
1415         uint8_t inplace = (mbuf_src == mbuf_dst) ? 1 : 0;
1416         EVP_CIPHER_CTX *ctx_copy;
1417
1418         /*
1419          * Segmented OOP destination buffer is not supported for encryption/
1420          * decryption. In case of des3ctr, even inplace segmented buffers are
1421          * not supported.
1422          */
1423         if (!rte_pktmbuf_is_contiguous(mbuf_dst) &&
1424                         (!inplace || sess->cipher.mode != OPENSSL_CIPHER_LIB)) {
1425                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1426                 return;
1427         }
1428
1429         srclen = op->sym->cipher.data.length;
1430         dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
1431                         op->sym->cipher.data.offset);
1432
1433         iv = rte_crypto_op_ctod_offset(op, uint8_t *,
1434                         sess->iv.offset);
1435         ctx_copy = EVP_CIPHER_CTX_new();
1436         EVP_CIPHER_CTX_copy(ctx_copy, sess->cipher.ctx);
1437
1438         if (sess->cipher.mode == OPENSSL_CIPHER_LIB)
1439                 if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT)
1440                         status = process_openssl_cipher_encrypt(mbuf_src, dst,
1441                                         op->sym->cipher.data.offset, iv,
1442                                         srclen, ctx_copy, inplace);
1443                 else
1444                         status = process_openssl_cipher_decrypt(mbuf_src, dst,
1445                                         op->sym->cipher.data.offset, iv,
1446                                         srclen, ctx_copy, inplace);
1447         else
1448                 status = process_openssl_cipher_des3ctr(mbuf_src, dst,
1449                                 op->sym->cipher.data.offset, iv,
1450                                 sess->cipher.key.data, srclen,
1451                                 ctx_copy);
1452
1453         EVP_CIPHER_CTX_free(ctx_copy);
1454         if (status != 0)
1455                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1456 }
1457
1458 /** Process cipher operation */
1459 static void
1460 process_openssl_docsis_bpi_op(struct rte_crypto_op *op,
1461                 struct openssl_session *sess, struct rte_mbuf *mbuf_src,
1462                 struct rte_mbuf *mbuf_dst)
1463 {
1464         uint8_t *src, *dst, *iv;
1465         uint8_t block_size, last_block_len;
1466         int srclen, status = 0;
1467
1468         srclen = op->sym->cipher.data.length;
1469         src = rte_pktmbuf_mtod_offset(mbuf_src, uint8_t *,
1470                         op->sym->cipher.data.offset);
1471         dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
1472                         op->sym->cipher.data.offset);
1473
1474         iv = rte_crypto_op_ctod_offset(op, uint8_t *,
1475                         sess->iv.offset);
1476
1477         block_size = DES_BLOCK_SIZE;
1478
1479         last_block_len = srclen % block_size;
1480         if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT) {
1481                 /* Encrypt only with ECB mode XOR IV */
1482                 if (srclen < block_size) {
1483                         status = process_openssl_cipher_bpi_encrypt(src, dst,
1484                                         iv, srclen,
1485                                         sess->cipher.bpi_ctx);
1486                 } else {
1487                         srclen -= last_block_len;
1488                         /* Encrypt with the block aligned stream with CBC mode */
1489                         status = process_openssl_cipher_encrypt(mbuf_src, dst,
1490                                         op->sym->cipher.data.offset, iv,
1491                                         srclen, sess->cipher.ctx, 0);
1492                         if (last_block_len) {
1493                                 /* Point at last block */
1494                                 dst += srclen;
1495                                 /*
1496                                  * IV is the last encrypted block from
1497                                  * the previous operation
1498                                  */
1499                                 iv = dst - block_size;
1500                                 src += srclen;
1501                                 srclen = last_block_len;
1502                                 /* Encrypt the last frame with ECB mode */
1503                                 status |= process_openssl_cipher_bpi_encrypt(src,
1504                                                 dst, iv,
1505                                                 srclen, sess->cipher.bpi_ctx);
1506                         }
1507                 }
1508         } else {
1509                 /* Decrypt only with ECB mode (encrypt, as it is same operation) */
1510                 if (srclen < block_size) {
1511                         status = process_openssl_cipher_bpi_encrypt(src, dst,
1512                                         iv,
1513                                         srclen,
1514                                         sess->cipher.bpi_ctx);
1515                 } else {
1516                         if (last_block_len) {
1517                                 /* Point at last block */
1518                                 dst += srclen - last_block_len;
1519                                 src += srclen - last_block_len;
1520                                 /*
1521                                  * IV is the last full block
1522                                  */
1523                                 iv = src - block_size;
1524                                 /*
1525                                  * Decrypt the last frame with ECB mode
1526                                  * (encrypt, as it is the same operation)
1527                                  */
1528                                 status = process_openssl_cipher_bpi_encrypt(src,
1529                                                 dst, iv,
1530                                                 last_block_len, sess->cipher.bpi_ctx);
1531                                 /* Prepare parameters for CBC mode op */
1532                                 iv = rte_crypto_op_ctod_offset(op, uint8_t *,
1533                                                 sess->iv.offset);
1534                                 dst += last_block_len - srclen;
1535                                 srclen -= last_block_len;
1536                         }
1537
1538                         /* Decrypt with CBC mode */
1539                         status |= process_openssl_cipher_decrypt(mbuf_src, dst,
1540                                         op->sym->cipher.data.offset, iv,
1541                                         srclen, sess->cipher.ctx, 0);
1542                 }
1543         }
1544
1545         if (status != 0)
1546                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1547 }
1548
1549 /** Process auth operation */
1550 static void
1551 process_openssl_auth_op(struct openssl_qp *qp, struct rte_crypto_op *op,
1552                 struct openssl_session *sess, struct rte_mbuf *mbuf_src,
1553                 struct rte_mbuf *mbuf_dst)
1554 {
1555         uint8_t *dst;
1556         int srclen, status;
1557         EVP_MD_CTX *ctx_a;
1558         HMAC_CTX *ctx_h;
1559
1560         srclen = op->sym->auth.data.length;
1561
1562         dst = qp->temp_digest;
1563
1564         switch (sess->auth.mode) {
1565         case OPENSSL_AUTH_AS_AUTH:
1566                 ctx_a = EVP_MD_CTX_create();
1567                 EVP_MD_CTX_copy_ex(ctx_a, sess->auth.auth.ctx);
1568                 status = process_openssl_auth(mbuf_src, dst,
1569                                 op->sym->auth.data.offset, NULL, NULL, srclen,
1570                                 ctx_a, sess->auth.auth.evp_algo);
1571                 EVP_MD_CTX_destroy(ctx_a);
1572                 break;
1573         case OPENSSL_AUTH_AS_HMAC:
1574                 ctx_h = HMAC_CTX_new();
1575                 HMAC_CTX_copy(ctx_h, sess->auth.hmac.ctx);
1576                 status = process_openssl_auth_hmac(mbuf_src, dst,
1577                                 op->sym->auth.data.offset, srclen,
1578                                 ctx_h);
1579                 HMAC_CTX_free(ctx_h);
1580                 break;
1581         default:
1582                 status = -1;
1583                 break;
1584         }
1585
1586         if (sess->auth.operation == RTE_CRYPTO_AUTH_OP_VERIFY) {
1587                 if (CRYPTO_memcmp(dst, op->sym->auth.digest.data,
1588                                 sess->auth.digest_length) != 0) {
1589                         op->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
1590                 }
1591         } else {
1592                 uint8_t *auth_dst;
1593
1594                 auth_dst = op->sym->auth.digest.data;
1595                 if (auth_dst == NULL)
1596                         auth_dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
1597                                         op->sym->auth.data.offset +
1598                                         op->sym->auth.data.length);
1599                 memcpy(auth_dst, dst, sess->auth.digest_length);
1600         }
1601
1602         if (status != 0)
1603                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1604 }
1605
1606 /* process dsa sign operation */
1607 static int
1608 process_openssl_dsa_sign_op(struct rte_crypto_op *cop,
1609                 struct openssl_asym_session *sess)
1610 {
1611         struct rte_crypto_dsa_op_param *op = &cop->asym->dsa;
1612         DSA *dsa = sess->u.s.dsa;
1613         DSA_SIG *sign = NULL;
1614
1615         sign = DSA_do_sign(op->message.data,
1616                         op->message.length,
1617                         dsa);
1618
1619         if (sign == NULL) {
1620                 OPENSSL_LOG(ERR, "%s:%d\n", __func__, __LINE__);
1621                 cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
1622         } else {
1623                 const BIGNUM *r = NULL, *s = NULL;
1624                 get_dsa_sign(sign, &r, &s);
1625
1626                 op->r.length = BN_bn2bin(r, op->r.data);
1627                 op->s.length = BN_bn2bin(s, op->s.data);
1628                 cop->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
1629         }
1630
1631         DSA_SIG_free(sign);
1632
1633         return 0;
1634 }
1635
1636 /* process dsa verify operation */
1637 static int
1638 process_openssl_dsa_verify_op(struct rte_crypto_op *cop,
1639                 struct openssl_asym_session *sess)
1640 {
1641         struct rte_crypto_dsa_op_param *op = &cop->asym->dsa;
1642         DSA *dsa = sess->u.s.dsa;
1643         int ret;
1644         DSA_SIG *sign = DSA_SIG_new();
1645         BIGNUM *r = NULL, *s = NULL;
1646         BIGNUM *pub_key = NULL;
1647
1648         if (sign == NULL) {
1649                 OPENSSL_LOG(ERR, " %s:%d\n", __func__, __LINE__);
1650                 cop->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
1651                 return -1;
1652         }
1653
1654         r = BN_bin2bn(op->r.data,
1655                         op->r.length,
1656                         r);
1657         s = BN_bin2bn(op->s.data,
1658                         op->s.length,
1659                         s);
1660         pub_key = BN_bin2bn(op->y.data,
1661                         op->y.length,
1662                         pub_key);
1663         if (!r || !s || !pub_key) {
1664                 BN_free(r);
1665                 BN_free(s);
1666                 BN_free(pub_key);
1667
1668                 cop->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
1669                 return -1;
1670         }
1671         set_dsa_sign(sign, r, s);
1672         set_dsa_pub_key(dsa, pub_key);
1673
1674         ret = DSA_do_verify(op->message.data,
1675                         op->message.length,
1676                         sign,
1677                         dsa);
1678
1679         if (ret != 1)
1680                 cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
1681         else
1682                 cop->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
1683
1684         DSA_SIG_free(sign);
1685
1686         return 0;
1687 }
1688
1689 /* process dh operation */
1690 static int
1691 process_openssl_dh_op(struct rte_crypto_op *cop,
1692                 struct openssl_asym_session *sess)
1693 {
1694         struct rte_crypto_dh_op_param *op = &cop->asym->dh;
1695         DH *dh_key = sess->u.dh.dh_key;
1696         BIGNUM *priv_key = NULL;
1697         int ret = 0;
1698
1699         if (sess->u.dh.key_op &
1700                         (1 << RTE_CRYPTO_ASYM_OP_SHARED_SECRET_COMPUTE)) {
1701                 /* compute shared secret using peer public key
1702                  * and current private key
1703                  * shared secret = peer_key ^ priv_key mod p
1704                  */
1705                 BIGNUM *peer_key = NULL;
1706
1707                 /* copy private key and peer key and compute shared secret */
1708                 peer_key = BN_bin2bn(op->pub_key.data,
1709                                 op->pub_key.length,
1710                                 peer_key);
1711                 if (peer_key == NULL) {
1712                         cop->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
1713                         return -1;
1714                 }
1715                 priv_key = BN_bin2bn(op->priv_key.data,
1716                                 op->priv_key.length,
1717                                 priv_key);
1718                 if (priv_key == NULL) {
1719                         BN_free(peer_key);
1720                         cop->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
1721                         return -1;
1722                 }
1723                 ret = set_dh_priv_key(dh_key, priv_key);
1724                 if (ret) {
1725                         OPENSSL_LOG(ERR, "Failed to set private key\n");
1726                         cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
1727                         BN_free(peer_key);
1728                         BN_free(priv_key);
1729                         return 0;
1730                 }
1731
1732                 ret = DH_compute_key(
1733                                 op->shared_secret.data,
1734                                 peer_key, dh_key);
1735                 if (ret < 0) {
1736                         cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
1737                         BN_free(peer_key);
1738                         /* priv key is already loaded into dh,
1739                          * let's not free that directly here.
1740                          * DH_free() will auto free it later.
1741                          */
1742                         return 0;
1743                 }
1744                 cop->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
1745                 op->shared_secret.length = ret;
1746                 BN_free(peer_key);
1747                 return 0;
1748         }
1749
1750         /*
1751          * other options are public and private key generations.
1752          *
1753          * if user provides private key,
1754          * then first set DH with user provided private key
1755          */
1756         if ((sess->u.dh.key_op &
1757                         (1 << RTE_CRYPTO_ASYM_OP_PUBLIC_KEY_GENERATE)) &&
1758                         !(sess->u.dh.key_op &
1759                         (1 << RTE_CRYPTO_ASYM_OP_PRIVATE_KEY_GENERATE))) {
1760                 /* generate public key using user-provided private key
1761                  * pub_key = g ^ priv_key mod p
1762                  */
1763
1764                 /* load private key into DH */
1765                 priv_key = BN_bin2bn(op->priv_key.data,
1766                                 op->priv_key.length,
1767                                 priv_key);
1768                 if (priv_key == NULL) {
1769                         cop->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
1770                         return -1;
1771                 }
1772                 ret = set_dh_priv_key(dh_key, priv_key);
1773                 if (ret) {
1774                         OPENSSL_LOG(ERR, "Failed to set private key\n");
1775                         cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
1776                         BN_free(priv_key);
1777                         return 0;
1778                 }
1779         }
1780
1781         /* generate public and private key pair.
1782          *
1783          * if private key already set, generates only public key.
1784          *
1785          * if private key is not already set, then set it to random value
1786          * and update internal private key.
1787          */
1788         if (!DH_generate_key(dh_key)) {
1789                 cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
1790                 return 0;
1791         }
1792
1793         if (sess->u.dh.key_op & (1 << RTE_CRYPTO_ASYM_OP_PUBLIC_KEY_GENERATE)) {
1794                 const BIGNUM *pub_key = NULL;
1795
1796                 OPENSSL_LOG(DEBUG, "%s:%d update public key\n",
1797                                 __func__, __LINE__);
1798
1799                 /* get the generated keys */
1800                 get_dh_pub_key(dh_key, &pub_key);
1801
1802                 /* output public key */
1803                 op->pub_key.length = BN_bn2bin(pub_key,
1804                                 op->pub_key.data);
1805         }
1806
1807         if (sess->u.dh.key_op &
1808                         (1 << RTE_CRYPTO_ASYM_OP_PRIVATE_KEY_GENERATE)) {
1809                 const BIGNUM *priv_key = NULL;
1810
1811                 OPENSSL_LOG(DEBUG, "%s:%d updated priv key\n",
1812                                 __func__, __LINE__);
1813
1814                 /* get the generated keys */
1815                 get_dh_priv_key(dh_key, &priv_key);
1816
1817                 /* provide generated private key back to user */
1818                 op->priv_key.length = BN_bn2bin(priv_key,
1819                                 op->priv_key.data);
1820         }
1821
1822         cop->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
1823
1824         return 0;
1825 }
1826
1827 /* process modinv operation */
1828 static int
1829 process_openssl_modinv_op(struct rte_crypto_op *cop,
1830                 struct openssl_asym_session *sess)
1831 {
1832         struct rte_crypto_asym_op *op = cop->asym;
1833         BIGNUM *base = BN_CTX_get(sess->u.m.ctx);
1834         BIGNUM *res = BN_CTX_get(sess->u.m.ctx);
1835
1836         if (unlikely(base == NULL || res == NULL)) {
1837                 BN_free(base);
1838                 BN_free(res);
1839                 cop->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
1840                 return -1;
1841         }
1842
1843         base = BN_bin2bn((const unsigned char *)op->modinv.base.data,
1844                         op->modinv.base.length, base);
1845
1846         if (BN_mod_inverse(res, base, sess->u.m.modulus, sess->u.m.ctx)) {
1847                 cop->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
1848                 op->modinv.result.length = BN_bn2bin(res, op->modinv.result.data);
1849         } else {
1850                 cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
1851         }
1852
1853         BN_clear(res);
1854         BN_clear(base);
1855
1856         return 0;
1857 }
1858
1859 /* process modexp operation */
1860 static int
1861 process_openssl_modexp_op(struct rte_crypto_op *cop,
1862                 struct openssl_asym_session *sess)
1863 {
1864         struct rte_crypto_asym_op *op = cop->asym;
1865         BIGNUM *base = BN_CTX_get(sess->u.e.ctx);
1866         BIGNUM *res = BN_CTX_get(sess->u.e.ctx);
1867
1868         if (unlikely(base == NULL || res == NULL)) {
1869                 BN_free(base);
1870                 BN_free(res);
1871                 cop->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
1872                 return -1;
1873         }
1874
1875         base = BN_bin2bn((const unsigned char *)op->modex.base.data,
1876                         op->modex.base.length, base);
1877
1878         if (BN_mod_exp(res, base, sess->u.e.exp,
1879                                 sess->u.e.mod, sess->u.e.ctx)) {
1880                 op->modex.result.length = BN_bn2bin(res, op->modex.result.data);
1881                 cop->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
1882         } else {
1883                 cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
1884         }
1885
1886         BN_clear(res);
1887         BN_clear(base);
1888
1889         return 0;
1890 }
1891
1892 /* process rsa operations */
1893 static int
1894 process_openssl_rsa_op(struct rte_crypto_op *cop,
1895                 struct openssl_asym_session *sess)
1896 {
1897         int ret = 0;
1898         struct rte_crypto_asym_op *op = cop->asym;
1899         RSA *rsa = sess->u.r.rsa;
1900         uint32_t pad = (op->rsa.pad);
1901         uint8_t *tmp;
1902
1903         cop->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
1904
1905         switch (pad) {
1906         case RTE_CRYPTO_RSA_PADDING_PKCS1_5:
1907                 pad = RSA_PKCS1_PADDING;
1908                 break;
1909         case RTE_CRYPTO_RSA_PADDING_NONE:
1910                 pad = RSA_NO_PADDING;
1911                 break;
1912         default:
1913                 cop->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
1914                 OPENSSL_LOG(ERR,
1915                                 "rsa pad type not supported %d\n", pad);
1916                 return 0;
1917         }
1918
1919         switch (op->rsa.op_type) {
1920         case RTE_CRYPTO_ASYM_OP_ENCRYPT:
1921                 ret = RSA_public_encrypt(op->rsa.message.length,
1922                                 op->rsa.message.data,
1923                                 op->rsa.cipher.data,
1924                                 rsa,
1925                                 pad);
1926
1927                 if (ret > 0)
1928                         op->rsa.cipher.length = ret;
1929                 OPENSSL_LOG(DEBUG,
1930                                 "length of encrypted text %d\n", ret);
1931                 break;
1932
1933         case RTE_CRYPTO_ASYM_OP_DECRYPT:
1934                 ret = RSA_private_decrypt(op->rsa.cipher.length,
1935                                 op->rsa.cipher.data,
1936                                 op->rsa.message.data,
1937                                 rsa,
1938                                 pad);
1939                 if (ret > 0)
1940                         op->rsa.message.length = ret;
1941                 break;
1942
1943         case RTE_CRYPTO_ASYM_OP_SIGN:
1944                 ret = RSA_private_encrypt(op->rsa.message.length,
1945                                 op->rsa.message.data,
1946                                 op->rsa.sign.data,
1947                                 rsa,
1948                                 pad);
1949                 if (ret > 0)
1950                         op->rsa.sign.length = ret;
1951                 break;
1952
1953         case RTE_CRYPTO_ASYM_OP_VERIFY:
1954                 tmp = rte_malloc(NULL, op->rsa.sign.length, 0);
1955                 if (tmp == NULL) {
1956                         OPENSSL_LOG(ERR, "Memory allocation failed");
1957                         cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
1958                         break;
1959                 }
1960                 ret = RSA_public_decrypt(op->rsa.sign.length,
1961                                 op->rsa.sign.data,
1962                                 tmp,
1963                                 rsa,
1964                                 pad);
1965
1966                 OPENSSL_LOG(DEBUG,
1967                                 "Length of public_decrypt %d "
1968                                 "length of message %zd\n",
1969                                 ret, op->rsa.message.length);
1970                 if ((ret <= 0) || (CRYPTO_memcmp(tmp, op->rsa.message.data,
1971                                 op->rsa.message.length))) {
1972                         OPENSSL_LOG(ERR, "RSA sign Verification failed");
1973                         cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
1974                 }
1975                 rte_free(tmp);
1976                 break;
1977
1978         default:
1979                 /* allow ops with invalid args to be pushed to
1980                  * completion queue
1981                  */
1982                 cop->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
1983                 break;
1984         }
1985
1986         if (ret < 0)
1987                 cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
1988
1989         return 0;
1990 }
1991
1992 static int
1993 process_asym_op(struct openssl_qp *qp, struct rte_crypto_op *op,
1994                 struct openssl_asym_session *sess)
1995 {
1996         int retval = 0;
1997
1998         op->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
1999
2000         switch (sess->xfrm_type) {
2001         case RTE_CRYPTO_ASYM_XFORM_RSA:
2002                 retval = process_openssl_rsa_op(op, sess);
2003                 break;
2004         case RTE_CRYPTO_ASYM_XFORM_MODEX:
2005                 retval = process_openssl_modexp_op(op, sess);
2006                 break;
2007         case RTE_CRYPTO_ASYM_XFORM_MODINV:
2008                 retval = process_openssl_modinv_op(op, sess);
2009                 break;
2010         case RTE_CRYPTO_ASYM_XFORM_DH:
2011                 retval = process_openssl_dh_op(op, sess);
2012                 break;
2013         case RTE_CRYPTO_ASYM_XFORM_DSA:
2014                 if (op->asym->dsa.op_type == RTE_CRYPTO_ASYM_OP_SIGN)
2015                         retval = process_openssl_dsa_sign_op(op, sess);
2016                 else if (op->asym->dsa.op_type ==
2017                                 RTE_CRYPTO_ASYM_OP_VERIFY)
2018                         retval =
2019                                 process_openssl_dsa_verify_op(op, sess);
2020                 else
2021                         op->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
2022                 break;
2023         default:
2024                 op->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
2025                 break;
2026         }
2027         if (!retval) {
2028                 /* op processed so push to completion queue as processed */
2029                 retval = rte_ring_enqueue(qp->processed_ops, (void *)op);
2030                 if (retval)
2031                         /* return error if failed to put in completion queue */
2032                         retval = -1;
2033         }
2034
2035         return retval;
2036 }
2037
2038 static void
2039 copy_plaintext(struct rte_mbuf *m_src, struct rte_mbuf *m_dst,
2040                 struct rte_crypto_op *op)
2041 {
2042         uint8_t *p_src, *p_dst;
2043
2044         p_src = rte_pktmbuf_mtod(m_src, uint8_t *);
2045         p_dst = rte_pktmbuf_mtod(m_dst, uint8_t *);
2046
2047         /**
2048          * Copy the content between cipher offset and auth offset
2049          * for generating correct digest.
2050          */
2051         if (op->sym->cipher.data.offset > op->sym->auth.data.offset)
2052                 memcpy(p_dst + op->sym->auth.data.offset,
2053                                 p_src + op->sym->auth.data.offset,
2054                                 op->sym->cipher.data.offset -
2055                                 op->sym->auth.data.offset);
2056 }
2057
2058 /** Process crypto operation for mbuf */
2059 static int
2060 process_op(struct openssl_qp *qp, struct rte_crypto_op *op,
2061                 struct openssl_session *sess)
2062 {
2063         struct rte_mbuf *msrc, *mdst;
2064         int retval;
2065
2066         msrc = op->sym->m_src;
2067         mdst = op->sym->m_dst ? op->sym->m_dst : op->sym->m_src;
2068
2069         op->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
2070
2071         switch (sess->chain_order) {
2072         case OPENSSL_CHAIN_ONLY_CIPHER:
2073                 process_openssl_cipher_op(op, sess, msrc, mdst);
2074                 break;
2075         case OPENSSL_CHAIN_ONLY_AUTH:
2076                 process_openssl_auth_op(qp, op, sess, msrc, mdst);
2077                 break;
2078         case OPENSSL_CHAIN_CIPHER_AUTH:
2079                 process_openssl_cipher_op(op, sess, msrc, mdst);
2080                 /* OOP */
2081                 if (msrc != mdst)
2082                         copy_plaintext(msrc, mdst, op);
2083                 process_openssl_auth_op(qp, op, sess, mdst, mdst);
2084                 break;
2085         case OPENSSL_CHAIN_AUTH_CIPHER:
2086                 process_openssl_auth_op(qp, op, sess, msrc, mdst);
2087                 process_openssl_cipher_op(op, sess, msrc, mdst);
2088                 break;
2089         case OPENSSL_CHAIN_COMBINED:
2090                 process_openssl_combined_op(op, sess, msrc, mdst);
2091                 break;
2092         case OPENSSL_CHAIN_CIPHER_BPI:
2093                 process_openssl_docsis_bpi_op(op, sess, msrc, mdst);
2094                 break;
2095         default:
2096                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
2097                 break;
2098         }
2099
2100         /* Free session if a session-less crypto op */
2101         if (op->sess_type == RTE_CRYPTO_OP_SESSIONLESS) {
2102                 openssl_reset_session(sess);
2103                 memset(sess, 0, sizeof(struct openssl_session));
2104                 memset(op->sym->session, 0,
2105                         rte_cryptodev_sym_get_existing_header_session_size(
2106                                 op->sym->session));
2107                 rte_mempool_put(qp->sess_mp_priv, sess);
2108                 rte_mempool_put(qp->sess_mp, op->sym->session);
2109                 op->sym->session = NULL;
2110         }
2111
2112         if (op->status == RTE_CRYPTO_OP_STATUS_NOT_PROCESSED)
2113                 op->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
2114
2115         if (op->status != RTE_CRYPTO_OP_STATUS_ERROR)
2116                 retval = rte_ring_enqueue(qp->processed_ops, (void *)op);
2117         else
2118                 retval = -1;
2119
2120         return retval;
2121 }
2122
2123 /*
2124  *------------------------------------------------------------------------------
2125  * PMD Framework
2126  *------------------------------------------------------------------------------
2127  */
2128
2129 /** Enqueue burst */
2130 static uint16_t
2131 openssl_pmd_enqueue_burst(void *queue_pair, struct rte_crypto_op **ops,
2132                 uint16_t nb_ops)
2133 {
2134         void *sess;
2135         struct openssl_qp *qp = queue_pair;
2136         int i, retval;
2137
2138         for (i = 0; i < nb_ops; i++) {
2139                 sess = get_session(qp, ops[i]);
2140                 if (unlikely(sess == NULL))
2141                         goto enqueue_err;
2142
2143                 if (ops[i]->type == RTE_CRYPTO_OP_TYPE_SYMMETRIC)
2144                         retval = process_op(qp, ops[i],
2145                                         (struct openssl_session *) sess);
2146                 else
2147                         retval = process_asym_op(qp, ops[i],
2148                                         (struct openssl_asym_session *) sess);
2149                 if (unlikely(retval < 0))
2150                         goto enqueue_err;
2151         }
2152
2153         qp->stats.enqueued_count += i;
2154         return i;
2155
2156 enqueue_err:
2157         qp->stats.enqueue_err_count++;
2158         return i;
2159 }
2160
2161 /** Dequeue burst */
2162 static uint16_t
2163 openssl_pmd_dequeue_burst(void *queue_pair, struct rte_crypto_op **ops,
2164                 uint16_t nb_ops)
2165 {
2166         struct openssl_qp *qp = queue_pair;
2167
2168         unsigned int nb_dequeued = 0;
2169
2170         nb_dequeued = rte_ring_dequeue_burst(qp->processed_ops,
2171                         (void **)ops, nb_ops, NULL);
2172         qp->stats.dequeued_count += nb_dequeued;
2173
2174         return nb_dequeued;
2175 }
2176
2177 /** Create OPENSSL crypto device */
2178 static int
2179 cryptodev_openssl_create(const char *name,
2180                         struct rte_vdev_device *vdev,
2181                         struct rte_cryptodev_pmd_init_params *init_params)
2182 {
2183         struct rte_cryptodev *dev;
2184         struct openssl_private *internals;
2185
2186         dev = rte_cryptodev_pmd_create(name, &vdev->device, init_params);
2187         if (dev == NULL) {
2188                 OPENSSL_LOG(ERR, "failed to create cryptodev vdev");
2189                 goto init_error;
2190         }
2191
2192         dev->driver_id = cryptodev_driver_id;
2193         dev->dev_ops = rte_openssl_pmd_ops;
2194
2195         /* register rx/tx burst functions for data path */
2196         dev->dequeue_burst = openssl_pmd_dequeue_burst;
2197         dev->enqueue_burst = openssl_pmd_enqueue_burst;
2198
2199         dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
2200                         RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING |
2201                         RTE_CRYPTODEV_FF_CPU_AESNI |
2202                         RTE_CRYPTODEV_FF_IN_PLACE_SGL |
2203                         RTE_CRYPTODEV_FF_OOP_SGL_IN_LB_OUT |
2204                         RTE_CRYPTODEV_FF_OOP_LB_IN_LB_OUT |
2205                         RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO |
2206                         RTE_CRYPTODEV_FF_RSA_PRIV_OP_KEY_EXP |
2207                         RTE_CRYPTODEV_FF_RSA_PRIV_OP_KEY_QT |
2208                         RTE_CRYPTODEV_FF_SYM_SESSIONLESS;
2209
2210         internals = dev->data->dev_private;
2211
2212         internals->max_nb_qpairs = init_params->max_nb_queue_pairs;
2213
2214         rte_cryptodev_pmd_probing_finish(dev);
2215
2216         return 0;
2217
2218 init_error:
2219         OPENSSL_LOG(ERR, "driver %s: create failed",
2220                         init_params->name);
2221
2222         cryptodev_openssl_remove(vdev);
2223         return -EFAULT;
2224 }
2225
2226 /** Initialise OPENSSL crypto device */
2227 static int
2228 cryptodev_openssl_probe(struct rte_vdev_device *vdev)
2229 {
2230         struct rte_cryptodev_pmd_init_params init_params = {
2231                 "",
2232                 sizeof(struct openssl_private),
2233                 rte_socket_id(),
2234                 RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS
2235         };
2236         const char *name;
2237         const char *input_args;
2238
2239         name = rte_vdev_device_name(vdev);
2240         if (name == NULL)
2241                 return -EINVAL;
2242         input_args = rte_vdev_device_args(vdev);
2243
2244         rte_cryptodev_pmd_parse_input_args(&init_params, input_args);
2245
2246         return cryptodev_openssl_create(name, vdev, &init_params);
2247 }
2248
2249 /** Uninitialise OPENSSL crypto device */
2250 static int
2251 cryptodev_openssl_remove(struct rte_vdev_device *vdev)
2252 {
2253         struct rte_cryptodev *cryptodev;
2254         const char *name;
2255
2256         name = rte_vdev_device_name(vdev);
2257         if (name == NULL)
2258                 return -EINVAL;
2259
2260         cryptodev = rte_cryptodev_pmd_get_named_dev(name);
2261         if (cryptodev == NULL)
2262                 return -ENODEV;
2263
2264         return rte_cryptodev_pmd_destroy(cryptodev);
2265 }
2266
2267 static struct rte_vdev_driver cryptodev_openssl_pmd_drv = {
2268         .probe = cryptodev_openssl_probe,
2269         .remove = cryptodev_openssl_remove
2270 };
2271
2272 static struct cryptodev_driver openssl_crypto_drv;
2273
2274 RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_OPENSSL_PMD,
2275         cryptodev_openssl_pmd_drv);
2276 RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_OPENSSL_PMD,
2277         "max_nb_queue_pairs=<int> "
2278         "socket_id=<int>");
2279 RTE_PMD_REGISTER_CRYPTO_DRIVER(openssl_crypto_drv,
2280                 cryptodev_openssl_pmd_drv.driver, cryptodev_driver_id);
2281 RTE_LOG_REGISTER_DEFAULT(openssl_logtype_driver, INFO);