drivers/crypto/openssl/rte_openssl_pmd.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2016-2017 Intel Corporation
   3  */
   4
   5 #define OPENSSL_API_COMPAT 0x10100000L
   6
   7 #include <rte_common.h>
   8 #include <rte_hexdump.h>
   9 #include <rte_cryptodev.h>
  10 #include <cryptodev_pmd.h>
  11 #include <rte_bus_vdev.h>
  12 #include <rte_malloc.h>
  13 #include <rte_cpuflags.h>
  14
  15 #include <openssl/hmac.h>
  16 #include <openssl/evp.h>
  17
  18 #include "openssl_pmd_private.h"
  19 #include "compat.h"
  20
  21 #define DES_BLOCK_SIZE 8
  22
  23 static uint8_t cryptodev_driver_id;
  24
  25 #if (OPENSSL_VERSION_NUMBER < 0x10100000L)
  26 static HMAC_CTX *HMAC_CTX_new(void)
  27 {
  28         HMAC_CTX *ctx = OPENSSL_malloc(sizeof(*ctx));
  29
  30         if (ctx != NULL)
  31                 HMAC_CTX_init(ctx);
  32         return ctx;
  33 }
  34
  35 static void HMAC_CTX_free(HMAC_CTX *ctx)
  36 {
  37         if (ctx != NULL) {
  38                 HMAC_CTX_cleanup(ctx);
  39                 OPENSSL_free(ctx);
  40         }
  41 }
  42 #endif
  43
  44 static int cryptodev_openssl_remove(struct rte_vdev_device *vdev);
  45
  46 /*----------------------------------------------------------------------------*/
  47
  48 /**
  49  * Increment counter by 1
  50  * Counter is 64 bit array, big-endian
  51  */
  52 static void
  53 ctr_inc(uint8_t *ctr)
  54 {
  55         uint64_t *ctr64 = (uint64_t *)ctr;
  56
  57         *ctr64 = __builtin_bswap64(*ctr64);
  58         (*ctr64)++;
  59         *ctr64 = __builtin_bswap64(*ctr64);
  60 }
  61
  62 /*
  63  *------------------------------------------------------------------------------
  64  * Session Prepare
  65  *------------------------------------------------------------------------------
  66  */
  67
  68 /** Get xform chain order */
  69 static enum openssl_chain_order
  70 openssl_get_chain_order(const struct rte_crypto_sym_xform *xform)
  71 {
  72         enum openssl_chain_order res = OPENSSL_CHAIN_NOT_SUPPORTED;
  73
  74         if (xform != NULL) {
  75                 if (xform->type == RTE_CRYPTO_SYM_XFORM_AUTH) {
  76                         if (xform->next == NULL)
  77                                 res =  OPENSSL_CHAIN_ONLY_AUTH;
  78                         else if (xform->next->type ==
  79                                         RTE_CRYPTO_SYM_XFORM_CIPHER)
  80                                 res =  OPENSSL_CHAIN_AUTH_CIPHER;
  81                 }
  82                 if (xform->type == RTE_CRYPTO_SYM_XFORM_CIPHER) {
  83                         if (xform->next == NULL)
  84                                 res =  OPENSSL_CHAIN_ONLY_CIPHER;
  85                         else if (xform->next->type == RTE_CRYPTO_SYM_XFORM_AUTH)
  86                                 res =  OPENSSL_CHAIN_CIPHER_AUTH;
  87                 }
  88                 if (xform->type == RTE_CRYPTO_SYM_XFORM_AEAD)
  89                         res = OPENSSL_CHAIN_COMBINED;
  90         }
  91
  92         return res;
  93 }
  94
  95 /** Get session cipher key from input cipher key */
  96 static void
  97 get_cipher_key(const uint8_t *input_key, int keylen, uint8_t *session_key)
  98 {
  99         memcpy(session_key, input_key, keylen);
 100 }
 101
 102 /** Get key ede 24 bytes standard from input key */
 103 static int
 104 get_cipher_key_ede(const uint8_t *key, int keylen, uint8_t *key_ede)
 105 {
 106         int res = 0;
 107
 108         /* Initialize keys - 24 bytes: [key1-key2-key3] */
 109         switch (keylen) {
 110         case 24:
 111                 memcpy(key_ede, key, 24);
 112                 break;
 113         case 16:
 114                 /* K3 = K1 */
 115                 memcpy(key_ede, key, 16);
 116                 memcpy(key_ede + 16, key, 8);
 117                 break;
 118         case 8:
 119                 /* K1 = K2 = K3 (DES compatibility) */
 120                 memcpy(key_ede, key, 8);
 121                 memcpy(key_ede + 8, key, 8);
 122                 memcpy(key_ede + 16, key, 8);
 123                 break;
 124         default:
 125                 OPENSSL_LOG(ERR, "Unsupported key size");
 126                 res = -EINVAL;
 127         }
 128
 129         return res;
 130 }
 131
 132 /** Get adequate openssl function for input cipher algorithm */
 133 static uint8_t
 134 get_cipher_algo(enum rte_crypto_cipher_algorithm sess_algo, size_t keylen,
 135                 const EVP_CIPHER **algo)
 136 {
 137         int res = 0;
 138
 139         if (algo != NULL) {
 140                 switch (sess_algo) {
 141                 case RTE_CRYPTO_CIPHER_3DES_CBC:
 142                         switch (keylen) {
 143                         case 8:
 144                                 *algo = EVP_des_cbc();
 145                                 break;
 146                         case 16:
 147                                 *algo = EVP_des_ede_cbc();
 148                                 break;
 149                         case 24:
 150                                 *algo = EVP_des_ede3_cbc();
 151                                 break;
 152                         default:
 153                                 res = -EINVAL;
 154                         }
 155                         break;
 156                 case RTE_CRYPTO_CIPHER_3DES_CTR:
 157                         break;
 158                 case RTE_CRYPTO_CIPHER_AES_CBC:
 159                         switch (keylen) {
 160                         case 16:
 161                                 *algo = EVP_aes_128_cbc();
 162                                 break;
 163                         case 24:
 164                                 *algo = EVP_aes_192_cbc();
 165                                 break;
 166                         case 32:
 167                                 *algo = EVP_aes_256_cbc();
 168                                 break;
 169                         default:
 170                                 res = -EINVAL;
 171                         }
 172                         break;
 173                 case RTE_CRYPTO_CIPHER_AES_CTR:
 174                         switch (keylen) {
 175                         case 16:
 176                                 *algo = EVP_aes_128_ctr();
 177                                 break;
 178                         case 24:
 179                                 *algo = EVP_aes_192_ctr();
 180                                 break;
 181                         case 32:
 182                                 *algo = EVP_aes_256_ctr();
 183                                 break;
 184                         default:
 185                                 res = -EINVAL;
 186                         }
 187                         break;
 188                 default:
 189                         res = -EINVAL;
 190                         break;
 191                 }
 192         } else {
 193                 res = -EINVAL;
 194         }
 195
 196         return res;
 197 }
 198
 199 /** Get adequate openssl function for input auth algorithm */
 200 static uint8_t
 201 get_auth_algo(enum rte_crypto_auth_algorithm sessalgo,
 202                 const EVP_MD **algo)
 203 {
 204         int res = 0;
 205
 206         if (algo != NULL) {
 207                 switch (sessalgo) {
 208                 case RTE_CRYPTO_AUTH_MD5:
 209                 case RTE_CRYPTO_AUTH_MD5_HMAC:
 210                         *algo = EVP_md5();
 211                         break;
 212                 case RTE_CRYPTO_AUTH_SHA1:
 213                 case RTE_CRYPTO_AUTH_SHA1_HMAC:
 214                         *algo = EVP_sha1();
 215                         break;
 216                 case RTE_CRYPTO_AUTH_SHA224:
 217                 case RTE_CRYPTO_AUTH_SHA224_HMAC:
 218                         *algo = EVP_sha224();
 219                         break;
 220                 case RTE_CRYPTO_AUTH_SHA256:
 221                 case RTE_CRYPTO_AUTH_SHA256_HMAC:
 222                         *algo = EVP_sha256();
 223                         break;
 224                 case RTE_CRYPTO_AUTH_SHA384:
 225                 case RTE_CRYPTO_AUTH_SHA384_HMAC:
 226                         *algo = EVP_sha384();
 227                         break;
 228                 case RTE_CRYPTO_AUTH_SHA512:
 229                 case RTE_CRYPTO_AUTH_SHA512_HMAC:
 230                         *algo = EVP_sha512();
 231                         break;
 232                 default:
 233                         res = -EINVAL;
 234                         break;
 235                 }
 236         } else {
 237                 res = -EINVAL;
 238         }
 239
 240         return res;
 241 }
 242
 243 /** Get adequate openssl function for input cipher algorithm */
 244 static uint8_t
 245 get_aead_algo(enum rte_crypto_aead_algorithm sess_algo, size_t keylen,
 246                 const EVP_CIPHER **algo)
 247 {
 248         int res = 0;
 249
 250         if (algo != NULL) {
 251                 switch (sess_algo) {
 252                 case RTE_CRYPTO_AEAD_AES_GCM:
 253                         switch (keylen) {
 254                         case 16:
 255                                 *algo = EVP_aes_128_gcm();
 256                                 break;
 257                         case 24:
 258                                 *algo = EVP_aes_192_gcm();
 259                                 break;
 260                         case 32:
 261                                 *algo = EVP_aes_256_gcm();
 262                                 break;
 263                         default:
 264                                 res = -EINVAL;
 265                         }
 266                         break;
 267                 case RTE_CRYPTO_AEAD_AES_CCM:
 268                         switch (keylen) {
 269                         case 16:
 270                                 *algo = EVP_aes_128_ccm();
 271                                 break;
 272                         case 24:
 273                                 *algo = EVP_aes_192_ccm();
 274                                 break;
 275                         case 32:
 276                                 *algo = EVP_aes_256_ccm();
 277                                 break;
 278                         default:
 279                                 res = -EINVAL;
 280                         }
 281                         break;
 282                 default:
 283                         res = -EINVAL;
 284                         break;
 285                 }
 286         } else {
 287                 res = -EINVAL;
 288         }
 289
 290         return res;
 291 }
 292
 293 /* Set session AEAD encryption parameters */
 294 static int
 295 openssl_set_sess_aead_enc_param(struct openssl_session *sess,
 296                 enum rte_crypto_aead_algorithm algo,
 297                 uint8_t tag_len, const uint8_t *key)
 298 {
 299         int iv_type = 0;
 300         unsigned int do_ccm;
 301
 302         sess->cipher.direction = RTE_CRYPTO_CIPHER_OP_ENCRYPT;
 303         sess->auth.operation = RTE_CRYPTO_AUTH_OP_GENERATE;
 304
 305         /* Select AEAD algo */
 306         switch (algo) {
 307         case RTE_CRYPTO_AEAD_AES_GCM:
 308                 iv_type = EVP_CTRL_GCM_SET_IVLEN;
 309                 if (tag_len != 16)
 310                         return -EINVAL;
 311                 do_ccm = 0;
 312                 break;
 313         case RTE_CRYPTO_AEAD_AES_CCM:
 314                 iv_type = EVP_CTRL_CCM_SET_IVLEN;
 315                 /* Digest size can be 4, 6, 8, 10, 12, 14 or 16 bytes */
 316                 if (tag_len < 4 || tag_len > 16 || (tag_len & 1) == 1)
 317                         return -EINVAL;
 318                 do_ccm = 1;
 319                 break;
 320         default:
 321                 return -ENOTSUP;
 322         }
 323
 324         sess->cipher.mode = OPENSSL_CIPHER_LIB;
 325         sess->cipher.ctx = EVP_CIPHER_CTX_new();
 326
 327         if (get_aead_algo(algo, sess->cipher.key.length,
 328                         &sess->cipher.evp_algo) != 0)
 329                 return -EINVAL;
 330
 331         get_cipher_key(key, sess->cipher.key.length, sess->cipher.key.data);
 332
 333         sess->chain_order = OPENSSL_CHAIN_COMBINED;
 334
 335         if (EVP_EncryptInit_ex(sess->cipher.ctx, sess->cipher.evp_algo,
 336                         NULL, NULL, NULL) <= 0)
 337                 return -EINVAL;
 338
 339         if (EVP_CIPHER_CTX_ctrl(sess->cipher.ctx, iv_type, sess->iv.length,
 340                         NULL) <= 0)
 341                 return -EINVAL;
 342
 343         if (do_ccm)
 344                 EVP_CIPHER_CTX_ctrl(sess->cipher.ctx, EVP_CTRL_CCM_SET_TAG,
 345                                 tag_len, NULL);
 346
 347         if (EVP_EncryptInit_ex(sess->cipher.ctx, NULL, NULL, key, NULL) <= 0)
 348                 return -EINVAL;
 349
 350         return 0;
 351 }
 352
 353 /* Set session AEAD decryption parameters */
 354 static int
 355 openssl_set_sess_aead_dec_param(struct openssl_session *sess,
 356                 enum rte_crypto_aead_algorithm algo,
 357                 uint8_t tag_len, const uint8_t *key)
 358 {
 359         int iv_type = 0;
 360         unsigned int do_ccm = 0;
 361
 362         sess->cipher.direction = RTE_CRYPTO_CIPHER_OP_DECRYPT;
 363         sess->auth.operation = RTE_CRYPTO_AUTH_OP_VERIFY;
 364
 365         /* Select AEAD algo */
 366         switch (algo) {
 367         case RTE_CRYPTO_AEAD_AES_GCM:
 368                 iv_type = EVP_CTRL_GCM_SET_IVLEN;
 369                 if (tag_len != 16)
 370                         return -EINVAL;
 371                 break;
 372         case RTE_CRYPTO_AEAD_AES_CCM:
 373                 iv_type = EVP_CTRL_CCM_SET_IVLEN;
 374                 /* Digest size can be 4, 6, 8, 10, 12, 14 or 16 bytes */
 375                 if (tag_len < 4 || tag_len > 16 || (tag_len & 1) == 1)
 376                         return -EINVAL;
 377                 do_ccm = 1;
 378                 break;
 379         default:
 380                 return -ENOTSUP;
 381         }
 382
 383         sess->cipher.mode = OPENSSL_CIPHER_LIB;
 384         sess->cipher.ctx = EVP_CIPHER_CTX_new();
 385
 386         if (get_aead_algo(algo, sess->cipher.key.length,
 387                         &sess->cipher.evp_algo) != 0)
 388                 return -EINVAL;
 389
 390         get_cipher_key(key, sess->cipher.key.length, sess->cipher.key.data);
 391
 392         sess->chain_order = OPENSSL_CHAIN_COMBINED;
 393
 394         if (EVP_DecryptInit_ex(sess->cipher.ctx, sess->cipher.evp_algo,
 395                         NULL, NULL, NULL) <= 0)
 396                 return -EINVAL;
 397
 398         if (EVP_CIPHER_CTX_ctrl(sess->cipher.ctx, iv_type,
 399                         sess->iv.length, NULL) <= 0)
 400                 return -EINVAL;
 401
 402         if (do_ccm)
 403                 EVP_CIPHER_CTX_ctrl(sess->cipher.ctx, EVP_CTRL_CCM_SET_TAG,
 404                                 tag_len, NULL);
 405
 406         if (EVP_DecryptInit_ex(sess->cipher.ctx, NULL, NULL, key, NULL) <= 0)
 407                 return -EINVAL;
 408
 409         return 0;
 410 }
 411
 412 /** Set session cipher parameters */
 413 static int
 414 openssl_set_session_cipher_parameters(struct openssl_session *sess,
 415                 const struct rte_crypto_sym_xform *xform)
 416 {
 417         /* Select cipher direction */
 418         sess->cipher.direction = xform->cipher.op;
 419         /* Select cipher key */
 420         sess->cipher.key.length = xform->cipher.key.length;
 421
 422         /* Set IV parameters */
 423         sess->iv.offset = xform->cipher.iv.offset;
 424         sess->iv.length = xform->cipher.iv.length;
 425
 426         /* Select cipher algo */
 427         switch (xform->cipher.algo) {
 428         case RTE_CRYPTO_CIPHER_3DES_CBC:
 429         case RTE_CRYPTO_CIPHER_AES_CBC:
 430         case RTE_CRYPTO_CIPHER_AES_CTR:
 431                 sess->cipher.mode = OPENSSL_CIPHER_LIB;
 432                 sess->cipher.algo = xform->cipher.algo;
 433                 sess->cipher.ctx = EVP_CIPHER_CTX_new();
 434
 435                 if (get_cipher_algo(sess->cipher.algo, sess->cipher.key.length,
 436                                 &sess->cipher.evp_algo) != 0)
 437                         return -EINVAL;
 438
 439                 get_cipher_key(xform->cipher.key.data, sess->cipher.key.length,
 440                         sess->cipher.key.data);
 441                 if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT) {
 442                         if (EVP_EncryptInit_ex(sess->cipher.ctx,
 443                                         sess->cipher.evp_algo,
 444                                         NULL, xform->cipher.key.data,
 445                                         NULL) != 1) {
 446                                 return -EINVAL;
 447                         }
 448                 } else if (sess->cipher.direction ==
 449                                 RTE_CRYPTO_CIPHER_OP_DECRYPT) {
 450                         if (EVP_DecryptInit_ex(sess->cipher.ctx,
 451                                         sess->cipher.evp_algo,
 452                                         NULL, xform->cipher.key.data,
 453                                         NULL) != 1) {
 454                                 return -EINVAL;
 455                         }
 456                 }
 457
 458                 break;
 459
 460         case RTE_CRYPTO_CIPHER_3DES_CTR:
 461                 sess->cipher.mode = OPENSSL_CIPHER_DES3CTR;
 462                 sess->cipher.ctx = EVP_CIPHER_CTX_new();
 463
 464                 if (get_cipher_key_ede(xform->cipher.key.data,
 465                                 sess->cipher.key.length,
 466                                 sess->cipher.key.data) != 0)
 467                         return -EINVAL;
 468                 break;
 469
 470         case RTE_CRYPTO_CIPHER_DES_CBC:
 471                 sess->cipher.algo = xform->cipher.algo;
 472                 sess->cipher.ctx = EVP_CIPHER_CTX_new();
 473                 sess->cipher.evp_algo = EVP_des_cbc();
 474
 475                 get_cipher_key(xform->cipher.key.data, sess->cipher.key.length,
 476                         sess->cipher.key.data);
 477                 if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT) {
 478                         if (EVP_EncryptInit_ex(sess->cipher.ctx,
 479                                         sess->cipher.evp_algo,
 480                                         NULL, xform->cipher.key.data,
 481                                         NULL) != 1) {
 482                                 return -EINVAL;
 483                         }
 484                 } else if (sess->cipher.direction ==
 485                                 RTE_CRYPTO_CIPHER_OP_DECRYPT) {
 486                         if (EVP_DecryptInit_ex(sess->cipher.ctx,
 487                                         sess->cipher.evp_algo,
 488                                         NULL, xform->cipher.key.data,
 489                                         NULL) != 1) {
 490                                 return -EINVAL;
 491                         }
 492                 }
 493
 494                 break;
 495
 496         case RTE_CRYPTO_CIPHER_DES_DOCSISBPI:
 497                 sess->cipher.algo = xform->cipher.algo;
 498                 sess->chain_order = OPENSSL_CHAIN_CIPHER_BPI;
 499                 sess->cipher.ctx = EVP_CIPHER_CTX_new();
 500                 sess->cipher.evp_algo = EVP_des_cbc();
 501
 502                 sess->cipher.bpi_ctx = EVP_CIPHER_CTX_new();
 503                 /* IV will be ECB encrypted whether direction is encrypt or decrypt */
 504                 if (EVP_EncryptInit_ex(sess->cipher.bpi_ctx, EVP_des_ecb(),
 505                                 NULL, xform->cipher.key.data, 0) != 1)
 506                         return -EINVAL;
 507
 508                 get_cipher_key(xform->cipher.key.data, sess->cipher.key.length,
 509                         sess->cipher.key.data);
 510                 if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT) {
 511                         if (EVP_EncryptInit_ex(sess->cipher.ctx,
 512                                         sess->cipher.evp_algo,
 513                                         NULL, xform->cipher.key.data,
 514                                         NULL) != 1) {
 515                                 return -EINVAL;
 516                         }
 517                 } else if (sess->cipher.direction ==
 518                                 RTE_CRYPTO_CIPHER_OP_DECRYPT) {
 519                         if (EVP_DecryptInit_ex(sess->cipher.ctx,
 520                                         sess->cipher.evp_algo,
 521                                         NULL, xform->cipher.key.data,
 522                                         NULL) != 1) {
 523                                 return -EINVAL;
 524                         }
 525                 }
 526
 527                 break;
 528         default:
 529                 sess->cipher.algo = RTE_CRYPTO_CIPHER_NULL;
 530                 return -ENOTSUP;
 531         }
 532
 533         return 0;
 534 }
 535
 536 /* Set session auth parameters */
 537 static int
 538 openssl_set_session_auth_parameters(struct openssl_session *sess,
 539                 const struct rte_crypto_sym_xform *xform)
 540 {
 541         /* Select auth generate/verify */
 542         sess->auth.operation = xform->auth.op;
 543         sess->auth.algo = xform->auth.algo;
 544
 545         sess->auth.digest_length = xform->auth.digest_length;
 546
 547         /* Select auth algo */
 548         switch (xform->auth.algo) {
 549         case RTE_CRYPTO_AUTH_AES_GMAC:
 550                 /*
 551                  * OpenSSL requires GMAC to be a GCM operation
 552                  * with no cipher data length
 553                  */
 554                 sess->cipher.key.length = xform->auth.key.length;
 555
 556                 /* Set IV parameters */
 557                 sess->iv.offset = xform->auth.iv.offset;
 558                 sess->iv.length = xform->auth.iv.length;
 559
 560                 if (sess->auth.operation == RTE_CRYPTO_AUTH_OP_GENERATE)
 561                         return openssl_set_sess_aead_enc_param(sess,
 562                                                 RTE_CRYPTO_AEAD_AES_GCM,
 563                                                 xform->auth.digest_length,
 564                                                 xform->auth.key.data);
 565                 else
 566                         return openssl_set_sess_aead_dec_param(sess,
 567                                                 RTE_CRYPTO_AEAD_AES_GCM,
 568                                                 xform->auth.digest_length,
 569                                                 xform->auth.key.data);
 570                 break;
 571
 572         case RTE_CRYPTO_AUTH_MD5:
 573         case RTE_CRYPTO_AUTH_SHA1:
 574         case RTE_CRYPTO_AUTH_SHA224:
 575         case RTE_CRYPTO_AUTH_SHA256:
 576         case RTE_CRYPTO_AUTH_SHA384:
 577         case RTE_CRYPTO_AUTH_SHA512:
 578                 sess->auth.mode = OPENSSL_AUTH_AS_AUTH;
 579                 if (get_auth_algo(xform->auth.algo,
 580                                 &sess->auth.auth.evp_algo) != 0)
 581                         return -EINVAL;
 582                 sess->auth.auth.ctx = EVP_MD_CTX_create();
 583                 break;
 584
 585         case RTE_CRYPTO_AUTH_MD5_HMAC:
 586         case RTE_CRYPTO_AUTH_SHA1_HMAC:
 587         case RTE_CRYPTO_AUTH_SHA224_HMAC:
 588         case RTE_CRYPTO_AUTH_SHA256_HMAC:
 589         case RTE_CRYPTO_AUTH_SHA384_HMAC:
 590         case RTE_CRYPTO_AUTH_SHA512_HMAC:
 591                 sess->auth.mode = OPENSSL_AUTH_AS_HMAC;
 592                 sess->auth.hmac.ctx = HMAC_CTX_new();
 593                 if (get_auth_algo(xform->auth.algo,
 594                                 &sess->auth.hmac.evp_algo) != 0)
 595                         return -EINVAL;
 596
 597                 if (HMAC_Init_ex(sess->auth.hmac.ctx,
 598                                 xform->auth.key.data,
 599                                 xform->auth.key.length,
 600                                 sess->auth.hmac.evp_algo, NULL) != 1)
 601                         return -EINVAL;
 602                 break;
 603
 604         default:
 605                 return -ENOTSUP;
 606         }
 607
 608         return 0;
 609 }
 610
 611 /* Set session AEAD parameters */
 612 static int
 613 openssl_set_session_aead_parameters(struct openssl_session *sess,
 614                 const struct rte_crypto_sym_xform *xform)
 615 {
 616         /* Select cipher key */
 617         sess->cipher.key.length = xform->aead.key.length;
 618
 619         /* Set IV parameters */
 620         if (xform->aead.algo == RTE_CRYPTO_AEAD_AES_CCM)
 621                 /*
 622                  * For AES-CCM, the actual IV is placed
 623                  * one byte after the start of the IV field,
 624                  * according to the API.
 625                  */
 626                 sess->iv.offset = xform->aead.iv.offset + 1;
 627         else
 628                 sess->iv.offset = xform->aead.iv.offset;
 629
 630         sess->iv.length = xform->aead.iv.length;
 631
 632         sess->auth.aad_length = xform->aead.aad_length;
 633         sess->auth.digest_length = xform->aead.digest_length;
 634
 635         sess->aead_algo = xform->aead.algo;
 636         /* Select cipher direction */
 637         if (xform->aead.op == RTE_CRYPTO_AEAD_OP_ENCRYPT)
 638                 return openssl_set_sess_aead_enc_param(sess, xform->aead.algo,
 639                                 xform->aead.digest_length, xform->aead.key.data);
 640         else
 641                 return openssl_set_sess_aead_dec_param(sess, xform->aead.algo,
 642                                 xform->aead.digest_length, xform->aead.key.data);
 643 }
 644
 645 /** Parse crypto xform chain and set private session parameters */
 646 int
 647 openssl_set_session_parameters(struct openssl_session *sess,
 648                 const struct rte_crypto_sym_xform *xform)
 649 {
 650         const struct rte_crypto_sym_xform *cipher_xform = NULL;
 651         const struct rte_crypto_sym_xform *auth_xform = NULL;
 652         const struct rte_crypto_sym_xform *aead_xform = NULL;
 653         int ret;
 654
 655         sess->chain_order = openssl_get_chain_order(xform);
 656         switch (sess->chain_order) {
 657         case OPENSSL_CHAIN_ONLY_CIPHER:
 658                 cipher_xform = xform;
 659                 break;
 660         case OPENSSL_CHAIN_ONLY_AUTH:
 661                 auth_xform = xform;
 662                 break;
 663         case OPENSSL_CHAIN_CIPHER_AUTH:
 664                 cipher_xform = xform;
 665                 auth_xform = xform->next;
 666                 break;
 667         case OPENSSL_CHAIN_AUTH_CIPHER:
 668                 auth_xform = xform;
 669                 cipher_xform = xform->next;
 670                 break;
 671         case OPENSSL_CHAIN_COMBINED:
 672                 aead_xform = xform;
 673                 break;
 674         default:
 675                 return -EINVAL;
 676         }
 677
 678         /* Default IV length = 0 */
 679         sess->iv.length = 0;
 680
 681         /* cipher_xform must be check before auth_xform */
 682         if (cipher_xform) {
 683                 ret = openssl_set_session_cipher_parameters(
 684                                 sess, cipher_xform);
 685                 if (ret != 0) {
 686                         OPENSSL_LOG(ERR,
 687                                 "Invalid/unsupported cipher parameters");
 688                         return ret;
 689                 }
 690         }
 691
 692         if (auth_xform) {
 693                 ret = openssl_set_session_auth_parameters(sess, auth_xform);
 694                 if (ret != 0) {
 695                         OPENSSL_LOG(ERR,
 696                                 "Invalid/unsupported auth parameters");
 697                         return ret;
 698                 }
 699         }
 700
 701         if (aead_xform) {
 702                 ret = openssl_set_session_aead_parameters(sess, aead_xform);
 703                 if (ret != 0) {
 704                         OPENSSL_LOG(ERR,
 705                                 "Invalid/unsupported AEAD parameters");
 706                         return ret;
 707                 }
 708         }
 709
 710         return 0;
 711 }
 712
 713 /** Reset private session parameters */
 714 void
 715 openssl_reset_session(struct openssl_session *sess)
 716 {
 717         EVP_CIPHER_CTX_free(sess->cipher.ctx);
 718
 719         if (sess->chain_order == OPENSSL_CHAIN_CIPHER_BPI)
 720                 EVP_CIPHER_CTX_free(sess->cipher.bpi_ctx);
 721
 722         switch (sess->auth.mode) {
 723         case OPENSSL_AUTH_AS_AUTH:
 724                 EVP_MD_CTX_destroy(sess->auth.auth.ctx);
 725                 break;
 726         case OPENSSL_AUTH_AS_HMAC:
 727                 EVP_PKEY_free(sess->auth.hmac.pkey);
 728                 HMAC_CTX_free(sess->auth.hmac.ctx);
 729                 break;
 730         default:
 731                 break;
 732         }
 733 }
 734
 735 /** Provide session for operation */
 736 static void *
 737 get_session(struct openssl_qp *qp, struct rte_crypto_op *op)
 738 {
 739         struct openssl_session *sess = NULL;
 740         struct openssl_asym_session *asym_sess = NULL;
 741
 742         if (op->sess_type == RTE_CRYPTO_OP_WITH_SESSION) {
 743                 if (op->type == RTE_CRYPTO_OP_TYPE_SYMMETRIC) {
 744                         /* get existing session */
 745                         if (likely(op->sym->session != NULL))
 746                                 sess = (struct openssl_session *)
 747                                                 get_sym_session_private_data(
 748                                                 op->sym->session,
 749                                                 cryptodev_driver_id);
 750                 } else {
 751                         if (likely(op->asym->session != NULL))
 752                                 asym_sess = (struct openssl_asym_session *)
 753                                                 op->asym->session->sess_private_data;
 754                         if (asym_sess == NULL)
 755                                 op->status =
 756                                         RTE_CRYPTO_OP_STATUS_INVALID_SESSION;
 757                         return asym_sess;
 758                 }
 759         } else {
 760                 /* sessionless asymmetric not supported */
 761                 if (op->type == RTE_CRYPTO_OP_TYPE_ASYMMETRIC)
 762                         return NULL;
 763
 764                 /* provide internal session */
 765                 void *_sess = rte_cryptodev_sym_session_create(qp->sess_mp);
 766                 void *_sess_private_data = NULL;
 767
 768                 if (_sess == NULL)
 769                         return NULL;
 770
 771                 if (rte_mempool_get(qp->sess_mp_priv,
 772                                 (void **)&_sess_private_data))
 773                         return NULL;
 774
 775                 sess = (struct openssl_session *)_sess_private_data;
 776
 777                 if (unlikely(openssl_set_session_parameters(sess,
 778                                 op->sym->xform) != 0)) {
 779                         rte_mempool_put(qp->sess_mp, _sess);
 780                         rte_mempool_put(qp->sess_mp_priv, _sess_private_data);
 781                         sess = NULL;
 782                 }
 783                 op->sym->session = (struct rte_cryptodev_sym_session *)_sess;
 784                 set_sym_session_private_data(op->sym->session,
 785                                 cryptodev_driver_id, _sess_private_data);
 786         }
 787
 788         if (sess == NULL)
 789                 op->status = RTE_CRYPTO_OP_STATUS_INVALID_SESSION;
 790
 791         return sess;
 792 }
 793
 794 /*
 795  *------------------------------------------------------------------------------
 796  * Process Operations
 797  *------------------------------------------------------------------------------
 798  */
 799 static inline int
 800 process_openssl_encryption_update(struct rte_mbuf *mbuf_src, int offset,
 801                 uint8_t **dst, int srclen, EVP_CIPHER_CTX *ctx, uint8_t inplace)
 802 {
 803         struct rte_mbuf *m;
 804         int dstlen;
 805         int l, n = srclen;
 806         uint8_t *src, temp[EVP_CIPHER_CTX_block_size(ctx)];
 807
 808         for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m);
 809                         m = m->next)
 810                 offset -= rte_pktmbuf_data_len(m);
 811
 812         if (m == 0)
 813                 return -1;
 814
 815         src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset);
 816         if (inplace)
 817                 *dst = src;
 818
 819         l = rte_pktmbuf_data_len(m) - offset;
 820         if (srclen <= l) {
 821                 if (EVP_EncryptUpdate(ctx, *dst, &dstlen, src, srclen) <= 0)
 822                         return -1;
 823                 *dst += l;
 824                 return 0;
 825         }
 826
 827         if (EVP_EncryptUpdate(ctx, *dst, &dstlen, src, l) <= 0)
 828                 return -1;
 829
 830         *dst += dstlen;
 831         n -= l;
 832
 833         for (m = m->next; (m != NULL) && (n > 0); m = m->next) {
 834                 uint8_t diff = l - dstlen, rem;
 835
 836                 src = rte_pktmbuf_mtod(m, uint8_t *);
 837                 l = RTE_MIN(rte_pktmbuf_data_len(m), n);
 838                 if (diff && inplace) {
 839                         rem = RTE_MIN(l,
 840                                 (EVP_CIPHER_CTX_block_size(ctx) - diff));
 841                         if (EVP_EncryptUpdate(ctx, temp,
 842                                                 &dstlen, src, rem) <= 0)
 843                                 return -1;
 844                         n -= rem;
 845                         rte_memcpy(*dst, temp, diff);
 846                         rte_memcpy(src, temp + diff, rem);
 847                         src += rem;
 848                         l -= rem;
 849                 }
 850                 if (inplace)
 851                         *dst = src;
 852                 if (EVP_EncryptUpdate(ctx, *dst, &dstlen, src, l) <= 0)
 853                         return -1;
 854                 *dst += dstlen;
 855                 n -= l;
 856         }
 857
 858         return 0;
 859 }
 860
 861 static inline int
 862 process_openssl_decryption_update(struct rte_mbuf *mbuf_src, int offset,
 863                 uint8_t **dst, int srclen, EVP_CIPHER_CTX *ctx, uint8_t inplace)
 864 {
 865         struct rte_mbuf *m;
 866         int dstlen;
 867         int l, n = srclen;
 868         uint8_t *src, temp[EVP_CIPHER_CTX_block_size(ctx)];
 869
 870         for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m);
 871                         m = m->next)
 872                 offset -= rte_pktmbuf_data_len(m);
 873
 874         if (m == 0)
 875                 return -1;
 876
 877         src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset);
 878         if (inplace)
 879                 *dst = src;
 880
 881         l = rte_pktmbuf_data_len(m) - offset;
 882         if (srclen <= l) {
 883                 if (EVP_DecryptUpdate(ctx, *dst, &dstlen, src, srclen) <= 0)
 884                         return -1;
 885                 *dst += l;
 886                 return 0;
 887         }
 888
 889         if (EVP_DecryptUpdate(ctx, *dst, &dstlen, src, l) <= 0)
 890                 return -1;
 891
 892         *dst += dstlen;
 893         n -= l;
 894
 895         for (m = m->next; (m != NULL) && (n > 0); m = m->next) {
 896                 uint8_t diff = l - dstlen, rem;
 897
 898                 src = rte_pktmbuf_mtod(m, uint8_t *);
 899                 l = RTE_MIN(rte_pktmbuf_data_len(m), n);
 900                 if (diff && inplace) {
 901                         rem = RTE_MIN(l,
 902                                 (EVP_CIPHER_CTX_block_size(ctx) - diff));
 903                         if (EVP_DecryptUpdate(ctx, temp,
 904                                                 &dstlen, src, rem) <= 0)
 905                                 return -1;
 906                         n -= rem;
 907                         rte_memcpy(*dst, temp, diff);
 908                         rte_memcpy(src, temp + diff, rem);
 909                         src += rem;
 910                         l -= rem;
 911                 }
 912                 if (inplace)
 913                         *dst = src;
 914                 if (EVP_DecryptUpdate(ctx, *dst, &dstlen, src, l) <= 0)
 915                         return -1;
 916                 *dst += dstlen;
 917                 n -= l;
 918         }
 919
 920         return 0;
 921 }
 922
 923 /** Process standard openssl cipher encryption */
 924 static int
 925 process_openssl_cipher_encrypt(struct rte_mbuf *mbuf_src, uint8_t *dst,
 926                 int offset, uint8_t *iv, int srclen, EVP_CIPHER_CTX *ctx,
 927                 uint8_t inplace)
 928 {
 929         int totlen;
 930
 931         if (EVP_EncryptInit_ex(ctx, NULL, NULL, NULL, iv) <= 0)
 932                 goto process_cipher_encrypt_err;
 933
 934         EVP_CIPHER_CTX_set_padding(ctx, 0);
 935
 936         if (process_openssl_encryption_update(mbuf_src, offset, &dst,
 937                         srclen, ctx, inplace))
 938                 goto process_cipher_encrypt_err;
 939
 940         if (EVP_EncryptFinal_ex(ctx, dst, &totlen) <= 0)
 941                 goto process_cipher_encrypt_err;
 942
 943         return 0;
 944
 945 process_cipher_encrypt_err:
 946         OPENSSL_LOG(ERR, "Process openssl cipher encrypt failed");
 947         return -EINVAL;
 948 }
 949
 950 /** Process standard openssl cipher encryption */
 951 static int
 952 process_openssl_cipher_bpi_encrypt(uint8_t *src, uint8_t *dst,
 953                 uint8_t *iv, int srclen,
 954                 EVP_CIPHER_CTX *ctx)
 955 {
 956         uint8_t i;
 957         uint8_t encrypted_iv[DES_BLOCK_SIZE];
 958         int encrypted_ivlen;
 959
 960         if (EVP_EncryptUpdate(ctx, encrypted_iv, &encrypted_ivlen,
 961                         iv, DES_BLOCK_SIZE) <= 0)
 962                 goto process_cipher_encrypt_err;
 963
 964         for (i = 0; i < srclen; i++)
 965                 *(dst + i) = *(src + i) ^ (encrypted_iv[i]);
 966
 967         return 0;
 968
 969 process_cipher_encrypt_err:
 970         OPENSSL_LOG(ERR, "Process openssl cipher bpi encrypt failed");
 971         return -EINVAL;
 972 }
 973 /** Process standard openssl cipher decryption */
 974 static int
 975 process_openssl_cipher_decrypt(struct rte_mbuf *mbuf_src, uint8_t *dst,
 976                 int offset, uint8_t *iv, int srclen, EVP_CIPHER_CTX *ctx,
 977                 uint8_t inplace)
 978 {
 979         int totlen;
 980
 981         if (EVP_DecryptInit_ex(ctx, NULL, NULL, NULL, iv) <= 0)
 982                 goto process_cipher_decrypt_err;
 983
 984         EVP_CIPHER_CTX_set_padding(ctx, 0);
 985
 986         if (process_openssl_decryption_update(mbuf_src, offset, &dst,
 987                         srclen, ctx, inplace))
 988                 goto process_cipher_decrypt_err;
 989
 990         if (EVP_DecryptFinal_ex(ctx, dst, &totlen) <= 0)
 991                 goto process_cipher_decrypt_err;
 992         return 0;
 993
 994 process_cipher_decrypt_err:
 995         OPENSSL_LOG(ERR, "Process openssl cipher decrypt failed");
 996         return -EINVAL;
 997 }
 998
 999 /** Process cipher des 3 ctr encryption, decryption algorithm */
1000 static int
1001 process_openssl_cipher_des3ctr(struct rte_mbuf *mbuf_src, uint8_t *dst,
1002                 int offset, uint8_t *iv, uint8_t *key, int srclen,
1003                 EVP_CIPHER_CTX *ctx)
1004 {
1005         uint8_t ebuf[8], ctr[8];
1006         int unused, n;
1007         struct rte_mbuf *m;
1008         uint8_t *src;
1009         int l;
1010
1011         for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m);
1012                         m = m->next)
1013                 offset -= rte_pktmbuf_data_len(m);
1014
1015         if (m == 0)
1016                 goto process_cipher_des3ctr_err;
1017
1018         src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset);
1019         l = rte_pktmbuf_data_len(m) - offset;
1020
1021         /* We use 3DES encryption also for decryption.
1022          * IV is not important for 3DES ecb
1023          */
1024         if (EVP_EncryptInit_ex(ctx, EVP_des_ede3_ecb(), NULL, key, NULL) <= 0)
1025                 goto process_cipher_des3ctr_err;
1026
1027         memcpy(ctr, iv, 8);
1028
1029         for (n = 0; n < srclen; n++) {
1030                 if (n % 8 == 0) {
1031                         if (EVP_EncryptUpdate(ctx,
1032                                         (unsigned char *)&ebuf, &unused,
1033                                         (const unsigned char *)&ctr, 8) <= 0)
1034                                 goto process_cipher_des3ctr_err;
1035                         ctr_inc(ctr);
1036                 }
1037                 dst[n] = *(src++) ^ ebuf[n % 8];
1038
1039                 l--;
1040                 if (!l) {
1041                         m = m->next;
1042                         if (m) {
1043                                 src = rte_pktmbuf_mtod(m, uint8_t *);
1044                                 l = rte_pktmbuf_data_len(m);
1045                         }
1046                 }
1047         }
1048
1049         return 0;
1050
1051 process_cipher_des3ctr_err:
1052         OPENSSL_LOG(ERR, "Process openssl cipher des 3 ede ctr failed");
1053         return -EINVAL;
1054 }
1055
1056 /** Process AES-GCM encrypt algorithm */
1057 static int
1058 process_openssl_auth_encryption_gcm(struct rte_mbuf *mbuf_src, int offset,
1059                 int srclen, uint8_t *aad, int aadlen, uint8_t *iv,
1060                 uint8_t *dst, uint8_t *tag, EVP_CIPHER_CTX *ctx)
1061 {
1062         int len = 0, unused = 0;
1063         uint8_t empty[] = {};
1064
1065         if (EVP_EncryptInit_ex(ctx, NULL, NULL, NULL, iv) <= 0)
1066                 goto process_auth_encryption_gcm_err;
1067
1068         if (aadlen > 0)
1069                 if (EVP_EncryptUpdate(ctx, NULL, &len, aad, aadlen) <= 0)
1070                         goto process_auth_encryption_gcm_err;
1071
1072         if (srclen > 0)
1073                 if (process_openssl_encryption_update(mbuf_src, offset, &dst,
1074                                 srclen, ctx, 0))
1075                         goto process_auth_encryption_gcm_err;
1076
1077         /* Workaround open ssl bug in version less then 1.0.1f */
1078         if (EVP_EncryptUpdate(ctx, empty, &unused, empty, 0) <= 0)
1079                 goto process_auth_encryption_gcm_err;
1080
1081         if (EVP_EncryptFinal_ex(ctx, dst, &len) <= 0)
1082                 goto process_auth_encryption_gcm_err;
1083
1084         if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_GET_TAG, 16, tag) <= 0)
1085                 goto process_auth_encryption_gcm_err;
1086
1087         return 0;
1088
1089 process_auth_encryption_gcm_err:
1090         OPENSSL_LOG(ERR, "Process openssl auth encryption gcm failed");
1091         return -EINVAL;
1092 }
1093
1094 /** Process AES-CCM encrypt algorithm */
1095 static int
1096 process_openssl_auth_encryption_ccm(struct rte_mbuf *mbuf_src, int offset,
1097                 int srclen, uint8_t *aad, int aadlen, uint8_t *iv,
1098                 uint8_t *dst, uint8_t *tag, uint8_t taglen, EVP_CIPHER_CTX *ctx)
1099 {
1100         int len = 0;
1101
1102         if (EVP_EncryptInit_ex(ctx, NULL, NULL, NULL, iv) <= 0)
1103                 goto process_auth_encryption_ccm_err;
1104
1105         if (EVP_EncryptUpdate(ctx, NULL, &len, NULL, srclen) <= 0)
1106                 goto process_auth_encryption_ccm_err;
1107
1108         if (aadlen > 0)
1109                 /*
1110                  * For AES-CCM, the actual AAD is placed
1111                  * 18 bytes after the start of the AAD field,
1112                  * according to the API.
1113                  */
1114                 if (EVP_EncryptUpdate(ctx, NULL, &len, aad + 18, aadlen) <= 0)
1115                         goto process_auth_encryption_ccm_err;
1116
1117         if (srclen >= 0)
1118                 if (process_openssl_encryption_update(mbuf_src, offset, &dst,
1119                                 srclen, ctx, 0))
1120                         goto process_auth_encryption_ccm_err;
1121
1122         if (EVP_EncryptFinal_ex(ctx, dst, &len) <= 0)
1123                 goto process_auth_encryption_ccm_err;
1124
1125         if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_CCM_GET_TAG, taglen, tag) <= 0)
1126                 goto process_auth_encryption_ccm_err;
1127
1128         return 0;
1129
1130 process_auth_encryption_ccm_err:
1131         OPENSSL_LOG(ERR, "Process openssl auth encryption ccm failed");
1132         return -EINVAL;
1133 }
1134
1135 /** Process AES-GCM decrypt algorithm */
1136 static int
1137 process_openssl_auth_decryption_gcm(struct rte_mbuf *mbuf_src, int offset,
1138                 int srclen, uint8_t *aad, int aadlen, uint8_t *iv,
1139                 uint8_t *dst, uint8_t *tag, EVP_CIPHER_CTX *ctx)
1140 {
1141         int len = 0, unused = 0;
1142         uint8_t empty[] = {};
1143
1144         if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_TAG, 16, tag) <= 0)
1145                 goto process_auth_decryption_gcm_err;
1146
1147         if (EVP_DecryptInit_ex(ctx, NULL, NULL, NULL, iv) <= 0)
1148                 goto process_auth_decryption_gcm_err;
1149
1150         if (aadlen > 0)
1151                 if (EVP_DecryptUpdate(ctx, NULL, &len, aad, aadlen) <= 0)
1152                         goto process_auth_decryption_gcm_err;
1153
1154         if (srclen > 0)
1155                 if (process_openssl_decryption_update(mbuf_src, offset, &dst,
1156                                 srclen, ctx, 0))
1157                         goto process_auth_decryption_gcm_err;
1158
1159         /* Workaround open ssl bug in version less then 1.0.1f */
1160         if (EVP_DecryptUpdate(ctx, empty, &unused, empty, 0) <= 0)
1161                 goto process_auth_decryption_gcm_err;
1162
1163         if (EVP_DecryptFinal_ex(ctx, dst, &len) <= 0)
1164                 return -EFAULT;
1165
1166         return 0;
1167
1168 process_auth_decryption_gcm_err:
1169         OPENSSL_LOG(ERR, "Process openssl auth decryption gcm failed");
1170         return -EINVAL;
1171 }
1172
1173 /** Process AES-CCM decrypt algorithm */
1174 static int
1175 process_openssl_auth_decryption_ccm(struct rte_mbuf *mbuf_src, int offset,
1176                 int srclen, uint8_t *aad, int aadlen, uint8_t *iv,
1177                 uint8_t *dst, uint8_t *tag, uint8_t tag_len,
1178                 EVP_CIPHER_CTX *ctx)
1179 {
1180         int len = 0;
1181
1182         if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_CCM_SET_TAG, tag_len, tag) <= 0)
1183                 goto process_auth_decryption_ccm_err;
1184
1185         if (EVP_DecryptInit_ex(ctx, NULL, NULL, NULL, iv) <= 0)
1186                 goto process_auth_decryption_ccm_err;
1187
1188         if (EVP_DecryptUpdate(ctx, NULL, &len, NULL, srclen) <= 0)
1189                 goto process_auth_decryption_ccm_err;
1190
1191         if (aadlen > 0)
1192                 /*
1193                  * For AES-CCM, the actual AAD is placed
1194                  * 18 bytes after the start of the AAD field,
1195                  * according to the API.
1196                  */
1197                 if (EVP_DecryptUpdate(ctx, NULL, &len, aad + 18, aadlen) <= 0)
1198                         goto process_auth_decryption_ccm_err;
1199
1200         if (srclen >= 0)
1201                 if (process_openssl_decryption_update(mbuf_src, offset, &dst,
1202                                 srclen, ctx, 0))
1203                         return -EFAULT;
1204
1205         return 0;
1206
1207 process_auth_decryption_ccm_err:
1208         OPENSSL_LOG(ERR, "Process openssl auth decryption ccm failed");
1209         return -EINVAL;
1210 }
1211
1212 /** Process standard openssl auth algorithms */
1213 static int
1214 process_openssl_auth(struct rte_mbuf *mbuf_src, uint8_t *dst, int offset,
1215                 __rte_unused uint8_t *iv, __rte_unused EVP_PKEY * pkey,
1216                 int srclen, EVP_MD_CTX *ctx, const EVP_MD *algo)
1217 {
1218         size_t dstlen;
1219         struct rte_mbuf *m;
1220         int l, n = srclen;
1221         uint8_t *src;
1222
1223         for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m);
1224                         m = m->next)
1225                 offset -= rte_pktmbuf_data_len(m);
1226
1227         if (m == 0)
1228                 goto process_auth_err;
1229
1230         if (EVP_DigestInit_ex(ctx, algo, NULL) <= 0)
1231                 goto process_auth_err;
1232
1233         src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset);
1234
1235         l = rte_pktmbuf_data_len(m) - offset;
1236         if (srclen <= l) {
1237                 if (EVP_DigestUpdate(ctx, (char *)src, srclen) <= 0)
1238                         goto process_auth_err;
1239                 goto process_auth_final;
1240         }
1241
1242         if (EVP_DigestUpdate(ctx, (char *)src, l) <= 0)
1243                 goto process_auth_err;
1244
1245         n -= l;
1246
1247         for (m = m->next; (m != NULL) && (n > 0); m = m->next) {
1248                 src = rte_pktmbuf_mtod(m, uint8_t *);
1249                 l = rte_pktmbuf_data_len(m) < n ? rte_pktmbuf_data_len(m) : n;
1250                 if (EVP_DigestUpdate(ctx, (char *)src, l) <= 0)
1251                         goto process_auth_err;
1252                 n -= l;
1253         }
1254
1255 process_auth_final:
1256         if (EVP_DigestFinal_ex(ctx, dst, (unsigned int *)&dstlen) <= 0)
1257                 goto process_auth_err;
1258         return 0;
1259
1260 process_auth_err:
1261         OPENSSL_LOG(ERR, "Process openssl auth failed");
1262         return -EINVAL;
1263 }
1264
1265 /** Process standard openssl auth algorithms with hmac */
1266 static int
1267 process_openssl_auth_hmac(struct rte_mbuf *mbuf_src, uint8_t *dst, int offset,
1268                 int srclen, HMAC_CTX *ctx)
1269 {
1270         unsigned int dstlen;
1271         struct rte_mbuf *m;
1272         int l, n = srclen;
1273         uint8_t *src;
1274
1275         for (m = mbuf_src; m != NULL && offset > rte_pktmbuf_data_len(m);
1276                         m = m->next)
1277                 offset -= rte_pktmbuf_data_len(m);
1278
1279         if (m == 0)
1280                 goto process_auth_err;
1281
1282         src = rte_pktmbuf_mtod_offset(m, uint8_t *, offset);
1283
1284         l = rte_pktmbuf_data_len(m) - offset;
1285         if (srclen <= l) {
1286                 if (HMAC_Update(ctx, (unsigned char *)src, srclen) != 1)
1287                         goto process_auth_err;
1288                 goto process_auth_final;
1289         }
1290
1291         if (HMAC_Update(ctx, (unsigned char *)src, l) != 1)
1292                 goto process_auth_err;
1293
1294         n -= l;
1295
1296         for (m = m->next; (m != NULL) && (n > 0); m = m->next) {
1297                 src = rte_pktmbuf_mtod(m, uint8_t *);
1298                 l = rte_pktmbuf_data_len(m) < n ? rte_pktmbuf_data_len(m) : n;
1299                 if (HMAC_Update(ctx, (unsigned char *)src, l) != 1)
1300                         goto process_auth_err;
1301                 n -= l;
1302         }
1303
1304 process_auth_final:
1305         if (HMAC_Final(ctx, dst, &dstlen) != 1)
1306                 goto process_auth_err;
1307
1308         if (unlikely(HMAC_Init_ex(ctx, NULL, 0, NULL, NULL) != 1))
1309                 goto process_auth_err;
1310
1311         return 0;
1312
1313 process_auth_err:
1314         OPENSSL_LOG(ERR, "Process openssl auth failed");
1315         return -EINVAL;
1316 }
1317
1318 /*----------------------------------------------------------------------------*/
1319
1320 /** Process auth/cipher combined operation */
1321 static void
1322 process_openssl_combined_op
1323                 (struct rte_crypto_op *op, struct openssl_session *sess,
1324                 struct rte_mbuf *mbuf_src, struct rte_mbuf *mbuf_dst)
1325 {
1326         /* cipher */
1327         uint8_t *dst = NULL, *iv, *tag, *aad;
1328         int srclen, aadlen, status = -1;
1329         uint32_t offset;
1330         uint8_t taglen;
1331         EVP_CIPHER_CTX *ctx_copy;
1332
1333         /*
1334          * Segmented destination buffer is not supported for
1335          * encryption/decryption
1336          */
1337         if (!rte_pktmbuf_is_contiguous(mbuf_dst)) {
1338                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1339                 return;
1340         }
1341
1342         iv = rte_crypto_op_ctod_offset(op, uint8_t *,
1343                         sess->iv.offset);
1344         if (sess->auth.algo == RTE_CRYPTO_AUTH_AES_GMAC) {
1345                 srclen = 0;
1346                 offset = op->sym->auth.data.offset;
1347                 aadlen = op->sym->auth.data.length;
1348                 aad = rte_pktmbuf_mtod_offset(mbuf_src, uint8_t *,
1349                                 op->sym->auth.data.offset);
1350                 tag = op->sym->auth.digest.data;
1351                 if (tag == NULL)
1352                         tag = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
1353                                 offset + aadlen);
1354         } else {
1355                 srclen = op->sym->aead.data.length;
1356                 dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
1357                                 op->sym->aead.data.offset);
1358                 offset = op->sym->aead.data.offset;
1359                 aad = op->sym->aead.aad.data;
1360                 aadlen = sess->auth.aad_length;
1361                 tag = op->sym->aead.digest.data;
1362                 if (tag == NULL)
1363                         tag = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
1364                                 offset + srclen);
1365         }
1366
1367         taglen = sess->auth.digest_length;
1368         ctx_copy = EVP_CIPHER_CTX_new();
1369         EVP_CIPHER_CTX_copy(ctx_copy, sess->cipher.ctx);
1370
1371         if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT) {
1372                 if (sess->auth.algo == RTE_CRYPTO_AUTH_AES_GMAC ||
1373                                 sess->aead_algo == RTE_CRYPTO_AEAD_AES_GCM)
1374                         status = process_openssl_auth_encryption_gcm(
1375                                         mbuf_src, offset, srclen,
1376                                         aad, aadlen, iv,
1377                                         dst, tag, ctx_copy);
1378                 else
1379                         status = process_openssl_auth_encryption_ccm(
1380                                         mbuf_src, offset, srclen,
1381                                         aad, aadlen, iv,
1382                                         dst, tag, taglen, ctx_copy);
1383
1384         } else {
1385                 if (sess->auth.algo == RTE_CRYPTO_AUTH_AES_GMAC ||
1386                                 sess->aead_algo == RTE_CRYPTO_AEAD_AES_GCM)
1387                         status = process_openssl_auth_decryption_gcm(
1388                                         mbuf_src, offset, srclen,
1389                                         aad, aadlen, iv,
1390                                         dst, tag, ctx_copy);
1391                 else
1392                         status = process_openssl_auth_decryption_ccm(
1393                                         mbuf_src, offset, srclen,
1394                                         aad, aadlen, iv,
1395                                         dst, tag, taglen, ctx_copy);
1396         }
1397
1398         EVP_CIPHER_CTX_free(ctx_copy);
1399         if (status != 0) {
1400                 if (status == (-EFAULT) &&
1401                                 sess->auth.operation ==
1402                                                 RTE_CRYPTO_AUTH_OP_VERIFY)
1403                         op->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
1404                 else
1405                         op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1406         }
1407 }
1408
1409 /** Process cipher operation */
1410 static void
1411 process_openssl_cipher_op
1412                 (struct rte_crypto_op *op, struct openssl_session *sess,
1413                 struct rte_mbuf *mbuf_src, struct rte_mbuf *mbuf_dst)
1414 {
1415         uint8_t *dst, *iv;
1416         int srclen, status;
1417         uint8_t inplace = (mbuf_src == mbuf_dst) ? 1 : 0;
1418         EVP_CIPHER_CTX *ctx_copy;
1419
1420         /*
1421          * Segmented OOP destination buffer is not supported for encryption/
1422          * decryption. In case of des3ctr, even inplace segmented buffers are
1423          * not supported.
1424          */
1425         if (!rte_pktmbuf_is_contiguous(mbuf_dst) &&
1426                         (!inplace || sess->cipher.mode != OPENSSL_CIPHER_LIB)) {
1427                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1428                 return;
1429         }
1430
1431         srclen = op->sym->cipher.data.length;
1432         dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
1433                         op->sym->cipher.data.offset);
1434
1435         iv = rte_crypto_op_ctod_offset(op, uint8_t *,
1436                         sess->iv.offset);
1437         ctx_copy = EVP_CIPHER_CTX_new();
1438         EVP_CIPHER_CTX_copy(ctx_copy, sess->cipher.ctx);
1439
1440         if (sess->cipher.mode == OPENSSL_CIPHER_LIB)
1441                 if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT)
1442                         status = process_openssl_cipher_encrypt(mbuf_src, dst,
1443                                         op->sym->cipher.data.offset, iv,
1444                                         srclen, ctx_copy, inplace);
1445                 else
1446                         status = process_openssl_cipher_decrypt(mbuf_src, dst,
1447                                         op->sym->cipher.data.offset, iv,
1448                                         srclen, ctx_copy, inplace);
1449         else
1450                 status = process_openssl_cipher_des3ctr(mbuf_src, dst,
1451                                 op->sym->cipher.data.offset, iv,
1452                                 sess->cipher.key.data, srclen,
1453                                 ctx_copy);
1454
1455         EVP_CIPHER_CTX_free(ctx_copy);
1456         if (status != 0)
1457                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1458 }
1459
1460 /** Process cipher operation */
1461 static void
1462 process_openssl_docsis_bpi_op(struct rte_crypto_op *op,
1463                 struct openssl_session *sess, struct rte_mbuf *mbuf_src,
1464                 struct rte_mbuf *mbuf_dst)
1465 {
1466         uint8_t *src, *dst, *iv;
1467         uint8_t block_size, last_block_len;
1468         int srclen, status = 0;
1469
1470         srclen = op->sym->cipher.data.length;
1471         src = rte_pktmbuf_mtod_offset(mbuf_src, uint8_t *,
1472                         op->sym->cipher.data.offset);
1473         dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
1474                         op->sym->cipher.data.offset);
1475
1476         iv = rte_crypto_op_ctod_offset(op, uint8_t *,
1477                         sess->iv.offset);
1478
1479         block_size = DES_BLOCK_SIZE;
1480
1481         last_block_len = srclen % block_size;
1482         if (sess->cipher.direction == RTE_CRYPTO_CIPHER_OP_ENCRYPT) {
1483                 /* Encrypt only with ECB mode XOR IV */
1484                 if (srclen < block_size) {
1485                         status = process_openssl_cipher_bpi_encrypt(src, dst,
1486                                         iv, srclen,
1487                                         sess->cipher.bpi_ctx);
1488                 } else {
1489                         srclen -= last_block_len;
1490                         /* Encrypt with the block aligned stream with CBC mode */
1491                         status = process_openssl_cipher_encrypt(mbuf_src, dst,
1492                                         op->sym->cipher.data.offset, iv,
1493                                         srclen, sess->cipher.ctx, 0);
1494                         if (last_block_len) {
1495                                 /* Point at last block */
1496                                 dst += srclen;
1497                                 /*
1498                                  * IV is the last encrypted block from
1499                                  * the previous operation
1500                                  */
1501                                 iv = dst - block_size;
1502                                 src += srclen;
1503                                 srclen = last_block_len;
1504                                 /* Encrypt the last frame with ECB mode */
1505                                 status |= process_openssl_cipher_bpi_encrypt(src,
1506                                                 dst, iv,
1507                                                 srclen, sess->cipher.bpi_ctx);
1508                         }
1509                 }
1510         } else {
1511                 /* Decrypt only with ECB mode (encrypt, as it is same operation) */
1512                 if (srclen < block_size) {
1513                         status = process_openssl_cipher_bpi_encrypt(src, dst,
1514                                         iv,
1515                                         srclen,
1516                                         sess->cipher.bpi_ctx);
1517                 } else {
1518                         if (last_block_len) {
1519                                 /* Point at last block */
1520                                 dst += srclen - last_block_len;
1521                                 src += srclen - last_block_len;
1522                                 /*
1523                                  * IV is the last full block
1524                                  */
1525                                 iv = src - block_size;
1526                                 /*
1527                                  * Decrypt the last frame with ECB mode
1528                                  * (encrypt, as it is the same operation)
1529                                  */
1530                                 status = process_openssl_cipher_bpi_encrypt(src,
1531                                                 dst, iv,
1532                                                 last_block_len, sess->cipher.bpi_ctx);
1533                                 /* Prepare parameters for CBC mode op */
1534                                 iv = rte_crypto_op_ctod_offset(op, uint8_t *,
1535                                                 sess->iv.offset);
1536                                 dst += last_block_len - srclen;
1537                                 srclen -= last_block_len;
1538                         }
1539
1540                         /* Decrypt with CBC mode */
1541                         status |= process_openssl_cipher_decrypt(mbuf_src, dst,
1542                                         op->sym->cipher.data.offset, iv,
1543                                         srclen, sess->cipher.ctx, 0);
1544                 }
1545         }
1546
1547         if (status != 0)
1548                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1549 }
1550
1551 /** Process auth operation */
1552 static void
1553 process_openssl_auth_op(struct openssl_qp *qp, struct rte_crypto_op *op,
1554                 struct openssl_session *sess, struct rte_mbuf *mbuf_src,
1555                 struct rte_mbuf *mbuf_dst)
1556 {
1557         uint8_t *dst;
1558         int srclen, status;
1559         EVP_MD_CTX *ctx_a;
1560         HMAC_CTX *ctx_h;
1561
1562         srclen = op->sym->auth.data.length;
1563
1564         dst = qp->temp_digest;
1565
1566         switch (sess->auth.mode) {
1567         case OPENSSL_AUTH_AS_AUTH:
1568                 ctx_a = EVP_MD_CTX_create();
1569                 EVP_MD_CTX_copy_ex(ctx_a, sess->auth.auth.ctx);
1570                 status = process_openssl_auth(mbuf_src, dst,
1571                                 op->sym->auth.data.offset, NULL, NULL, srclen,
1572                                 ctx_a, sess->auth.auth.evp_algo);
1573                 EVP_MD_CTX_destroy(ctx_a);
1574                 break;
1575         case OPENSSL_AUTH_AS_HMAC:
1576                 ctx_h = HMAC_CTX_new();
1577                 HMAC_CTX_copy(ctx_h, sess->auth.hmac.ctx);
1578                 status = process_openssl_auth_hmac(mbuf_src, dst,
1579                                 op->sym->auth.data.offset, srclen,
1580                                 ctx_h);
1581                 HMAC_CTX_free(ctx_h);
1582                 break;
1583         default:
1584                 status = -1;
1585                 break;
1586         }
1587
1588         if (sess->auth.operation == RTE_CRYPTO_AUTH_OP_VERIFY) {
1589                 if (CRYPTO_memcmp(dst, op->sym->auth.digest.data,
1590                                 sess->auth.digest_length) != 0) {
1591                         op->status = RTE_CRYPTO_OP_STATUS_AUTH_FAILED;
1592                 }
1593         } else {
1594                 uint8_t *auth_dst;
1595
1596                 auth_dst = op->sym->auth.digest.data;
1597                 if (auth_dst == NULL)
1598                         auth_dst = rte_pktmbuf_mtod_offset(mbuf_dst, uint8_t *,
1599                                         op->sym->auth.data.offset +
1600                                         op->sym->auth.data.length);
1601                 memcpy(auth_dst, dst, sess->auth.digest_length);
1602         }
1603
1604         if (status != 0)
1605                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
1606 }
1607
1608 /* process dsa sign operation */
1609 static int
1610 process_openssl_dsa_sign_op(struct rte_crypto_op *cop,
1611                 struct openssl_asym_session *sess)
1612 {
1613         struct rte_crypto_dsa_op_param *op = &cop->asym->dsa;
1614         DSA *dsa = sess->u.s.dsa;
1615         DSA_SIG *sign = NULL;
1616
1617         sign = DSA_do_sign(op->message.data,
1618                         op->message.length,
1619                         dsa);
1620
1621         if (sign == NULL) {
1622                 OPENSSL_LOG(ERR, "%s:%d\n", __func__, __LINE__);
1623                 cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
1624         } else {
1625                 const BIGNUM *r = NULL, *s = NULL;
1626                 get_dsa_sign(sign, &r, &s);
1627
1628                 op->r.length = BN_bn2bin(r, op->r.data);
1629                 op->s.length = BN_bn2bin(s, op->s.data);
1630                 cop->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
1631         }
1632
1633         DSA_SIG_free(sign);
1634
1635         return 0;
1636 }
1637
1638 /* process dsa verify operation */
1639 static int
1640 process_openssl_dsa_verify_op(struct rte_crypto_op *cop,
1641                 struct openssl_asym_session *sess)
1642 {
1643         struct rte_crypto_dsa_op_param *op = &cop->asym->dsa;
1644         DSA *dsa = sess->u.s.dsa;
1645         int ret;
1646         DSA_SIG *sign = DSA_SIG_new();
1647         BIGNUM *r = NULL, *s = NULL;
1648         BIGNUM *pub_key = NULL;
1649
1650         if (sign == NULL) {
1651                 OPENSSL_LOG(ERR, " %s:%d\n", __func__, __LINE__);
1652                 cop->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
1653                 return -1;
1654         }
1655
1656         r = BN_bin2bn(op->r.data,
1657                         op->r.length,
1658                         r);
1659         s = BN_bin2bn(op->s.data,
1660                         op->s.length,
1661                         s);
1662         pub_key = BN_bin2bn(op->y.data,
1663                         op->y.length,
1664                         pub_key);
1665         if (!r || !s || !pub_key) {
1666                 BN_free(r);
1667                 BN_free(s);
1668                 BN_free(pub_key);
1669
1670                 cop->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
1671                 return -1;
1672         }
1673         set_dsa_sign(sign, r, s);
1674         set_dsa_pub_key(dsa, pub_key);
1675
1676         ret = DSA_do_verify(op->message.data,
1677                         op->message.length,
1678                         sign,
1679                         dsa);
1680
1681         if (ret != 1)
1682                 cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
1683         else
1684                 cop->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
1685
1686         DSA_SIG_free(sign);
1687
1688         return 0;
1689 }
1690
1691 /* process dh operation */
1692 static int
1693 process_openssl_dh_op(struct rte_crypto_op *cop,
1694                 struct openssl_asym_session *sess)
1695 {
1696         struct rte_crypto_dh_op_param *op = &cop->asym->dh;
1697         DH *dh_key = sess->u.dh.dh_key;
1698         BIGNUM *priv_key = NULL;
1699         int ret = 0;
1700
1701         if (sess->u.dh.key_op &
1702                         (1 << RTE_CRYPTO_ASYM_OP_SHARED_SECRET_COMPUTE)) {
1703                 /* compute shared secret using peer public key
1704                  * and current private key
1705                  * shared secret = peer_key ^ priv_key mod p
1706                  */
1707                 BIGNUM *peer_key = NULL;
1708
1709                 /* copy private key and peer key and compute shared secret */
1710                 peer_key = BN_bin2bn(op->pub_key.data,
1711                                 op->pub_key.length,
1712                                 peer_key);
1713                 if (peer_key == NULL) {
1714                         cop->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
1715                         return -1;
1716                 }
1717                 priv_key = BN_bin2bn(op->priv_key.data,
1718                                 op->priv_key.length,
1719                                 priv_key);
1720                 if (priv_key == NULL) {
1721                         BN_free(peer_key);
1722                         cop->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
1723                         return -1;
1724                 }
1725                 ret = set_dh_priv_key(dh_key, priv_key);
1726                 if (ret) {
1727                         OPENSSL_LOG(ERR, "Failed to set private key\n");
1728                         cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
1729                         BN_free(peer_key);
1730                         BN_free(priv_key);
1731                         return 0;
1732                 }
1733
1734                 ret = DH_compute_key(
1735                                 op->shared_secret.data,
1736                                 peer_key, dh_key);
1737                 if (ret < 0) {
1738                         cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
1739                         BN_free(peer_key);
1740                         /* priv key is already loaded into dh,
1741                          * let's not free that directly here.
1742                          * DH_free() will auto free it later.
1743                          */
1744                         return 0;
1745                 }
1746                 cop->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
1747                 op->shared_secret.length = ret;
1748                 BN_free(peer_key);
1749                 return 0;
1750         }
1751
1752         /*
1753          * other options are public and private key generations.
1754          *
1755          * if user provides private key,
1756          * then first set DH with user provided private key
1757          */
1758         if ((sess->u.dh.key_op &
1759                         (1 << RTE_CRYPTO_ASYM_OP_PUBLIC_KEY_GENERATE)) &&
1760                         !(sess->u.dh.key_op &
1761                         (1 << RTE_CRYPTO_ASYM_OP_PRIVATE_KEY_GENERATE))) {
1762                 /* generate public key using user-provided private key
1763                  * pub_key = g ^ priv_key mod p
1764                  */
1765
1766                 /* load private key into DH */
1767                 priv_key = BN_bin2bn(op->priv_key.data,
1768                                 op->priv_key.length,
1769                                 priv_key);
1770                 if (priv_key == NULL) {
1771                         cop->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
1772                         return -1;
1773                 }
1774                 ret = set_dh_priv_key(dh_key, priv_key);
1775                 if (ret) {
1776                         OPENSSL_LOG(ERR, "Failed to set private key\n");
1777                         cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
1778                         BN_free(priv_key);
1779                         return 0;
1780                 }
1781         }
1782
1783         /* generate public and private key pair.
1784          *
1785          * if private key already set, generates only public key.
1786          *
1787          * if private key is not already set, then set it to random value
1788          * and update internal private key.
1789          */
1790         if (!DH_generate_key(dh_key)) {
1791                 cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
1792                 return 0;
1793         }
1794
1795         if (sess->u.dh.key_op & (1 << RTE_CRYPTO_ASYM_OP_PUBLIC_KEY_GENERATE)) {
1796                 const BIGNUM *pub_key = NULL;
1797
1798                 OPENSSL_LOG(DEBUG, "%s:%d update public key\n",
1799                                 __func__, __LINE__);
1800
1801                 /* get the generated keys */
1802                 get_dh_pub_key(dh_key, &pub_key);
1803
1804                 /* output public key */
1805                 op->pub_key.length = BN_bn2bin(pub_key,
1806                                 op->pub_key.data);
1807         }
1808
1809         if (sess->u.dh.key_op &
1810                         (1 << RTE_CRYPTO_ASYM_OP_PRIVATE_KEY_GENERATE)) {
1811                 const BIGNUM *priv_key = NULL;
1812
1813                 OPENSSL_LOG(DEBUG, "%s:%d updated priv key\n",
1814                                 __func__, __LINE__);
1815
1816                 /* get the generated keys */
1817                 get_dh_priv_key(dh_key, &priv_key);
1818
1819                 /* provide generated private key back to user */
1820                 op->priv_key.length = BN_bn2bin(priv_key,
1821                                 op->priv_key.data);
1822         }
1823
1824         cop->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
1825
1826         return 0;
1827 }
1828
1829 /* process modinv operation */
1830 static int
1831 process_openssl_modinv_op(struct rte_crypto_op *cop,
1832                 struct openssl_asym_session *sess)
1833 {
1834         struct rte_crypto_asym_op *op = cop->asym;
1835         BIGNUM *base = BN_CTX_get(sess->u.m.ctx);
1836         BIGNUM *res = BN_CTX_get(sess->u.m.ctx);
1837
1838         if (unlikely(base == NULL || res == NULL)) {
1839                 BN_free(base);
1840                 BN_free(res);
1841                 cop->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
1842                 return -1;
1843         }
1844
1845         base = BN_bin2bn((const unsigned char *)op->modinv.base.data,
1846                         op->modinv.base.length, base);
1847
1848         if (BN_mod_inverse(res, base, sess->u.m.modulus, sess->u.m.ctx)) {
1849                 cop->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
1850                 op->modinv.result.length = BN_bn2bin(res, op->modinv.result.data);
1851         } else {
1852                 cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
1853         }
1854
1855         BN_clear(res);
1856         BN_clear(base);
1857
1858         return 0;
1859 }
1860
1861 /* process modexp operation */
1862 static int
1863 process_openssl_modexp_op(struct rte_crypto_op *cop,
1864                 struct openssl_asym_session *sess)
1865 {
1866         struct rte_crypto_asym_op *op = cop->asym;
1867         BIGNUM *base = BN_CTX_get(sess->u.e.ctx);
1868         BIGNUM *res = BN_CTX_get(sess->u.e.ctx);
1869
1870         if (unlikely(base == NULL || res == NULL)) {
1871                 BN_free(base);
1872                 BN_free(res);
1873                 cop->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
1874                 return -1;
1875         }
1876
1877         base = BN_bin2bn((const unsigned char *)op->modex.base.data,
1878                         op->modex.base.length, base);
1879
1880         if (BN_mod_exp(res, base, sess->u.e.exp,
1881                                 sess->u.e.mod, sess->u.e.ctx)) {
1882                 op->modex.result.length = BN_bn2bin(res, op->modex.result.data);
1883                 cop->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
1884         } else {
1885                 cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
1886         }
1887
1888         BN_clear(res);
1889         BN_clear(base);
1890
1891         return 0;
1892 }
1893
1894 /* process rsa operations */
1895 static int
1896 process_openssl_rsa_op(struct rte_crypto_op *cop,
1897                 struct openssl_asym_session *sess)
1898 {
1899         int ret = 0;
1900         struct rte_crypto_asym_op *op = cop->asym;
1901         RSA *rsa = sess->u.r.rsa;
1902         uint32_t pad = (op->rsa.pad);
1903         uint8_t *tmp;
1904
1905         cop->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
1906
1907         switch (pad) {
1908         case RTE_CRYPTO_RSA_PADDING_PKCS1_5:
1909                 pad = RSA_PKCS1_PADDING;
1910                 break;
1911         case RTE_CRYPTO_RSA_PADDING_NONE:
1912                 pad = RSA_NO_PADDING;
1913                 break;
1914         default:
1915                 cop->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
1916                 OPENSSL_LOG(ERR,
1917                                 "rsa pad type not supported %d\n", pad);
1918                 return 0;
1919         }
1920
1921         switch (op->rsa.op_type) {
1922         case RTE_CRYPTO_ASYM_OP_ENCRYPT:
1923                 ret = RSA_public_encrypt(op->rsa.message.length,
1924                                 op->rsa.message.data,
1925                                 op->rsa.cipher.data,
1926                                 rsa,
1927                                 pad);
1928
1929                 if (ret > 0)
1930                         op->rsa.cipher.length = ret;
1931                 OPENSSL_LOG(DEBUG,
1932                                 "length of encrypted text %d\n", ret);
1933                 break;
1934
1935         case RTE_CRYPTO_ASYM_OP_DECRYPT:
1936                 ret = RSA_private_decrypt(op->rsa.cipher.length,
1937                                 op->rsa.cipher.data,
1938                                 op->rsa.message.data,
1939                                 rsa,
1940                                 pad);
1941                 if (ret > 0)
1942                         op->rsa.message.length = ret;
1943                 break;
1944
1945         case RTE_CRYPTO_ASYM_OP_SIGN:
1946                 ret = RSA_private_encrypt(op->rsa.message.length,
1947                                 op->rsa.message.data,
1948                                 op->rsa.sign.data,
1949                                 rsa,
1950                                 pad);
1951                 if (ret > 0)
1952                         op->rsa.sign.length = ret;
1953                 break;
1954
1955         case RTE_CRYPTO_ASYM_OP_VERIFY:
1956                 tmp = rte_malloc(NULL, op->rsa.sign.length, 0);
1957                 if (tmp == NULL) {
1958                         OPENSSL_LOG(ERR, "Memory allocation failed");
1959                         cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
1960                         break;
1961                 }
1962                 ret = RSA_public_decrypt(op->rsa.sign.length,
1963                                 op->rsa.sign.data,
1964                                 tmp,
1965                                 rsa,
1966                                 pad);
1967
1968                 OPENSSL_LOG(DEBUG,
1969                                 "Length of public_decrypt %d "
1970                                 "length of message %zd\n",
1971                                 ret, op->rsa.message.length);
1972                 if ((ret <= 0) || (CRYPTO_memcmp(tmp, op->rsa.message.data,
1973                                 op->rsa.message.length))) {
1974                         OPENSSL_LOG(ERR, "RSA sign Verification failed");
1975                         cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
1976                 }
1977                 rte_free(tmp);
1978                 break;
1979
1980         default:
1981                 /* allow ops with invalid args to be pushed to
1982                  * completion queue
1983                  */
1984                 cop->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
1985                 break;
1986         }
1987
1988         if (ret < 0)
1989                 cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
1990
1991         return 0;
1992 }
1993
1994 static int
1995 process_asym_op(struct openssl_qp *qp, struct rte_crypto_op *op,
1996                 struct openssl_asym_session *sess)
1997 {
1998         int retval = 0;
1999
2000         op->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
2001
2002         switch (sess->xfrm_type) {
2003         case RTE_CRYPTO_ASYM_XFORM_RSA:
2004                 retval = process_openssl_rsa_op(op, sess);
2005                 break;
2006         case RTE_CRYPTO_ASYM_XFORM_MODEX:
2007                 retval = process_openssl_modexp_op(op, sess);
2008                 break;
2009         case RTE_CRYPTO_ASYM_XFORM_MODINV:
2010                 retval = process_openssl_modinv_op(op, sess);
2011                 break;
2012         case RTE_CRYPTO_ASYM_XFORM_DH:
2013                 retval = process_openssl_dh_op(op, sess);
2014                 break;
2015         case RTE_CRYPTO_ASYM_XFORM_DSA:
2016                 if (op->asym->dsa.op_type == RTE_CRYPTO_ASYM_OP_SIGN)
2017                         retval = process_openssl_dsa_sign_op(op, sess);
2018                 else if (op->asym->dsa.op_type ==
2019                                 RTE_CRYPTO_ASYM_OP_VERIFY)
2020                         retval =
2021                                 process_openssl_dsa_verify_op(op, sess);
2022                 else
2023                         op->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
2024                 break;
2025         default:
2026                 op->status = RTE_CRYPTO_OP_STATUS_INVALID_ARGS;
2027                 break;
2028         }
2029         if (!retval) {
2030                 /* op processed so push to completion queue as processed */
2031                 retval = rte_ring_enqueue(qp->processed_ops, (void *)op);
2032                 if (retval)
2033                         /* return error if failed to put in completion queue */
2034                         retval = -1;
2035         }
2036
2037         return retval;
2038 }
2039
2040 static void
2041 copy_plaintext(struct rte_mbuf *m_src, struct rte_mbuf *m_dst,
2042                 struct rte_crypto_op *op)
2043 {
2044         uint8_t *p_src, *p_dst;
2045
2046         p_src = rte_pktmbuf_mtod(m_src, uint8_t *);
2047         p_dst = rte_pktmbuf_mtod(m_dst, uint8_t *);
2048
2049         /**
2050          * Copy the content between cipher offset and auth offset
2051          * for generating correct digest.
2052          */
2053         if (op->sym->cipher.data.offset > op->sym->auth.data.offset)
2054                 memcpy(p_dst + op->sym->auth.data.offset,
2055                                 p_src + op->sym->auth.data.offset,
2056                                 op->sym->cipher.data.offset -
2057                                 op->sym->auth.data.offset);
2058 }
2059
2060 /** Process crypto operation for mbuf */
2061 static int
2062 process_op(struct openssl_qp *qp, struct rte_crypto_op *op,
2063                 struct openssl_session *sess)
2064 {
2065         struct rte_mbuf *msrc, *mdst;
2066         int retval;
2067
2068         msrc = op->sym->m_src;
2069         mdst = op->sym->m_dst ? op->sym->m_dst : op->sym->m_src;
2070
2071         op->status = RTE_CRYPTO_OP_STATUS_NOT_PROCESSED;
2072
2073         switch (sess->chain_order) {
2074         case OPENSSL_CHAIN_ONLY_CIPHER:
2075                 process_openssl_cipher_op(op, sess, msrc, mdst);
2076                 break;
2077         case OPENSSL_CHAIN_ONLY_AUTH:
2078                 process_openssl_auth_op(qp, op, sess, msrc, mdst);
2079                 break;
2080         case OPENSSL_CHAIN_CIPHER_AUTH:
2081                 process_openssl_cipher_op(op, sess, msrc, mdst);
2082                 /* OOP */
2083                 if (msrc != mdst)
2084                         copy_plaintext(msrc, mdst, op);
2085                 process_openssl_auth_op(qp, op, sess, mdst, mdst);
2086                 break;
2087         case OPENSSL_CHAIN_AUTH_CIPHER:
2088                 process_openssl_auth_op(qp, op, sess, msrc, mdst);
2089                 process_openssl_cipher_op(op, sess, msrc, mdst);
2090                 break;
2091         case OPENSSL_CHAIN_COMBINED:
2092                 process_openssl_combined_op(op, sess, msrc, mdst);
2093                 break;
2094         case OPENSSL_CHAIN_CIPHER_BPI:
2095                 process_openssl_docsis_bpi_op(op, sess, msrc, mdst);
2096                 break;
2097         default:
2098                 op->status = RTE_CRYPTO_OP_STATUS_ERROR;
2099                 break;
2100         }
2101
2102         /* Free session if a session-less crypto op */
2103         if (op->sess_type == RTE_CRYPTO_OP_SESSIONLESS) {
2104                 openssl_reset_session(sess);
2105                 memset(sess, 0, sizeof(struct openssl_session));
2106                 memset(op->sym->session, 0,
2107                         rte_cryptodev_sym_get_existing_header_session_size(
2108                                 op->sym->session));
2109                 rte_mempool_put(qp->sess_mp_priv, sess);
2110                 rte_mempool_put(qp->sess_mp, op->sym->session);
2111                 op->sym->session = NULL;
2112         }
2113
2114         if (op->status == RTE_CRYPTO_OP_STATUS_NOT_PROCESSED)
2115                 op->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
2116
2117         if (op->status != RTE_CRYPTO_OP_STATUS_ERROR)
2118                 retval = rte_ring_enqueue(qp->processed_ops, (void *)op);
2119         else
2120                 retval = -1;
2121
2122         return retval;
2123 }
2124
2125 /*
2126  *------------------------------------------------------------------------------
2127  * PMD Framework
2128  *------------------------------------------------------------------------------
2129  */
2130
2131 /** Enqueue burst */
2132 static uint16_t
2133 openssl_pmd_enqueue_burst(void *queue_pair, struct rte_crypto_op **ops,
2134                 uint16_t nb_ops)
2135 {
2136         void *sess;
2137         struct openssl_qp *qp = queue_pair;
2138         int i, retval;
2139
2140         for (i = 0; i < nb_ops; i++) {
2141                 sess = get_session(qp, ops[i]);
2142                 if (unlikely(sess == NULL))
2143                         goto enqueue_err;
2144
2145                 if (ops[i]->type == RTE_CRYPTO_OP_TYPE_SYMMETRIC)
2146                         retval = process_op(qp, ops[i],
2147                                         (struct openssl_session *) sess);
2148                 else
2149                         retval = process_asym_op(qp, ops[i],
2150                                         (struct openssl_asym_session *) sess);
2151                 if (unlikely(retval < 0))
2152                         goto enqueue_err;
2153         }
2154
2155         qp->stats.enqueued_count += i;
2156         return i;
2157
2158 enqueue_err:
2159         qp->stats.enqueue_err_count++;
2160         return i;
2161 }
2162
2163 /** Dequeue burst */
2164 static uint16_t
2165 openssl_pmd_dequeue_burst(void *queue_pair, struct rte_crypto_op **ops,
2166                 uint16_t nb_ops)
2167 {
2168         struct openssl_qp *qp = queue_pair;
2169
2170         unsigned int nb_dequeued = 0;
2171
2172         nb_dequeued = rte_ring_dequeue_burst(qp->processed_ops,
2173                         (void **)ops, nb_ops, NULL);
2174         qp->stats.dequeued_count += nb_dequeued;
2175
2176         return nb_dequeued;
2177 }
2178
2179 /** Create OPENSSL crypto device */
2180 static int
2181 cryptodev_openssl_create(const char *name,
2182                         struct rte_vdev_device *vdev,
2183                         struct rte_cryptodev_pmd_init_params *init_params)
2184 {
2185         struct rte_cryptodev *dev;
2186         struct openssl_private *internals;
2187
2188         dev = rte_cryptodev_pmd_create(name, &vdev->device, init_params);
2189         if (dev == NULL) {
2190                 OPENSSL_LOG(ERR, "failed to create cryptodev vdev");
2191                 goto init_error;
2192         }
2193
2194         dev->driver_id = cryptodev_driver_id;
2195         dev->dev_ops = rte_openssl_pmd_ops;
2196
2197         /* register rx/tx burst functions for data path */
2198         dev->dequeue_burst = openssl_pmd_dequeue_burst;
2199         dev->enqueue_burst = openssl_pmd_enqueue_burst;
2200
2201         dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
2202                         RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING |
2203                         RTE_CRYPTODEV_FF_CPU_AESNI |
2204                         RTE_CRYPTODEV_FF_IN_PLACE_SGL |
2205                         RTE_CRYPTODEV_FF_OOP_SGL_IN_LB_OUT |
2206                         RTE_CRYPTODEV_FF_OOP_LB_IN_LB_OUT |
2207                         RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO |
2208                         RTE_CRYPTODEV_FF_RSA_PRIV_OP_KEY_EXP |
2209                         RTE_CRYPTODEV_FF_RSA_PRIV_OP_KEY_QT |
2210                         RTE_CRYPTODEV_FF_SYM_SESSIONLESS;
2211
2212         internals = dev->data->dev_private;
2213
2214         internals->max_nb_qpairs = init_params->max_nb_queue_pairs;
2215
2216         rte_cryptodev_pmd_probing_finish(dev);
2217
2218         return 0;
2219
2220 init_error:
2221         OPENSSL_LOG(ERR, "driver %s: create failed",
2222                         init_params->name);
2223
2224         cryptodev_openssl_remove(vdev);
2225         return -EFAULT;
2226 }
2227
2228 /** Initialise OPENSSL crypto device */
2229 static int
2230 cryptodev_openssl_probe(struct rte_vdev_device *vdev)
2231 {
2232         struct rte_cryptodev_pmd_init_params init_params = {
2233                 "",
2234                 sizeof(struct openssl_private),
2235                 rte_socket_id(),
2236                 RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS
2237         };
2238         const char *name;
2239         const char *input_args;
2240
2241         name = rte_vdev_device_name(vdev);
2242         if (name == NULL)
2243                 return -EINVAL;
2244         input_args = rte_vdev_device_args(vdev);
2245
2246         rte_cryptodev_pmd_parse_input_args(&init_params, input_args);
2247
2248         return cryptodev_openssl_create(name, vdev, &init_params);
2249 }
2250
2251 /** Uninitialise OPENSSL crypto device */
2252 static int
2253 cryptodev_openssl_remove(struct rte_vdev_device *vdev)
2254 {
2255         struct rte_cryptodev *cryptodev;
2256         const char *name;
2257
2258         name = rte_vdev_device_name(vdev);
2259         if (name == NULL)
2260                 return -EINVAL;
2261
2262         cryptodev = rte_cryptodev_pmd_get_named_dev(name);
2263         if (cryptodev == NULL)
2264                 return -ENODEV;
2265
2266         return rte_cryptodev_pmd_destroy(cryptodev);
2267 }
2268
2269 static struct rte_vdev_driver cryptodev_openssl_pmd_drv = {
2270         .probe = cryptodev_openssl_probe,
2271         .remove = cryptodev_openssl_remove
2272 };
2273
2274 static struct cryptodev_driver openssl_crypto_drv;
2275
2276 RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_OPENSSL_PMD,
2277         cryptodev_openssl_pmd_drv);
2278 RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_OPENSSL_PMD,
2279         "max_nb_queue_pairs=<int> "
2280         "socket_id=<int>");
2281 RTE_PMD_REGISTER_CRYPTO_DRIVER(openssl_crypto_drv,
2282                 cryptodev_openssl_pmd_drv.driver, cryptodev_driver_id);
2283 RTE_LOG_REGISTER_DEFAULT(openssl_logtype_driver, INFO);