src/plugins/crypto_ipsecmb/ipsecmb.c

   1 /*
   2  * ipsecmb.c - Intel IPSec Multi-buffer library Crypto Engine
   3  *
   4  * Copyright (c) 2019 Cisco Systemss
   5  * Licensed under the Apache License, Version 2.0 (the "License");
   6  * you may not use this file except in compliance with the License.
   7  * You may obtain a copy of the License at:
   8  *
   9  *     http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing, software
  12  * distributed under the License is distributed on an "AS IS" BASIS,
  13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  * See the License for the specific language governing permissions and
  15  * limitations under the License.
  16  */
  17
  18 #include <fcntl.h>
  19
  20 #include <intel-ipsec-mb.h>
  21
  22 #include <vnet/vnet.h>
  23 #include <vnet/plugin/plugin.h>
  24 #include <vpp/app/version.h>
  25 #include <vnet/crypto/crypto.h>
  26 #include <vppinfra/cpu.h>
  27
  28 #define HMAC_MAX_BLOCK_SIZE SHA_512_BLOCK_SIZE
  29 #define EXPANDED_KEY_N_BYTES (16 * 15)
  30
  31 typedef struct
  32 {
  33   CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
  34   MB_MGR *mgr;
  35   __m128i cbc_iv;
  36 } ipsecmb_per_thread_data_t;
  37
  38 typedef struct
  39 {
  40   u16 data_size;
  41   u8 block_size;
  42   aes_gcm_pre_t aes_gcm_pre;
  43   keyexp_t keyexp;
  44   hash_one_block_t hash_one_block;
  45   hash_fn_t hash_fn;
  46 } ipsecmb_alg_data_t;
  47
  48 typedef struct ipsecmb_main_t_
  49 {
  50   ipsecmb_per_thread_data_t *per_thread_data;
  51   ipsecmb_alg_data_t alg_data[VNET_CRYPTO_N_ALGS];
  52   void **key_data;
  53 } ipsecmb_main_t;
  54
  55 typedef struct
  56 {
  57   u8 enc_key_exp[EXPANDED_KEY_N_BYTES];
  58   u8 dec_key_exp[EXPANDED_KEY_N_BYTES];
  59 } ipsecmb_aes_cbc_key_data_t;
  60
  61 static ipsecmb_main_t ipsecmb_main = { };
  62
  63 /*
  64  * (Alg, JOB_HASH_ALG, fn, block-size-bytes, hash-size-bytes, digest-size-bytes)
  65  */
  66 #define foreach_ipsecmb_hmac_op                                \
  67   _(SHA1,   SHA1,    sha1,   64,  20, 20)                      \
  68   _(SHA224, SHA_224, sha224, 64,  32, 28)                      \
  69   _(SHA256, SHA_256, sha256, 64,  32, 32)                      \
  70   _(SHA384, SHA_384, sha384, 128, 64, 48)                      \
  71   _(SHA512, SHA_512, sha512, 128, 64, 64)
  72
  73 /*
  74  * (Alg, key-len-bits)
  75  */
  76 #define foreach_ipsecmb_cbc_cipher_op                          \
  77   _(AES_128_CBC, 128)                                          \
  78   _(AES_192_CBC, 192)                                          \
  79   _(AES_256_CBC, 256)
  80
  81 /*
  82  * (Alg, key-len-bytes, iv-len-bytes)
  83  */
  84 #define foreach_ipsecmb_gcm_cipher_op                          \
  85   _(AES_128_GCM, 128)                                          \
  86   _(AES_192_GCM, 192)                                          \
  87   _(AES_256_GCM, 256)
  88
  89 static_always_inline vnet_crypto_op_status_t
  90 ipsecmb_status_job (JOB_STS status)
  91 {
  92   switch (status)
  93     {
  94     case STS_COMPLETED:
  95       return VNET_CRYPTO_OP_STATUS_COMPLETED;
  96     case STS_BEING_PROCESSED:
  97     case STS_COMPLETED_AES:
  98     case STS_COMPLETED_HMAC:
  99       return VNET_CRYPTO_OP_STATUS_WORK_IN_PROGRESS;
 100     case STS_INVALID_ARGS:
 101     case STS_INTERNAL_ERROR:
 102     case STS_ERROR:
 103       return VNET_CRYPTO_OP_STATUS_FAIL_ENGINE_ERR;
 104     }
 105   ASSERT (0);
 106   return VNET_CRYPTO_OP_STATUS_FAIL_ENGINE_ERR;
 107 }
 108
 109 always_inline void
 110 ipsecmb_retire_hmac_job (JOB_AES_HMAC * job, u32 * n_fail, u32 digest_size)
 111 {
 112   vnet_crypto_op_t *op = job->user_data;
 113   u32 len = op->digest_len ? op->digest_len : digest_size;
 114
 115   if (PREDICT_FALSE (STS_COMPLETED != job->status))
 116     {
 117       op->status = ipsecmb_status_job (job->status);
 118       *n_fail = *n_fail + 1;
 119       return;
 120     }
 121
 122   if (op->flags & VNET_CRYPTO_OP_FLAG_HMAC_CHECK)
 123     {
 124       if ((memcmp (op->digest, job->auth_tag_output, len)))
 125         {
 126           *n_fail = *n_fail + 1;
 127           op->status = VNET_CRYPTO_OP_STATUS_FAIL_BAD_HMAC;
 128           return;
 129         }
 130     }
 131   else if (len == digest_size)
 132     clib_memcpy_fast (op->digest, job->auth_tag_output, digest_size);
 133   else
 134     clib_memcpy_fast (op->digest, job->auth_tag_output, len);
 135
 136   op->status = VNET_CRYPTO_OP_STATUS_COMPLETED;
 137 }
 138
 139 static_always_inline u32
 140 ipsecmb_ops_hmac_inline (vlib_main_t * vm, vnet_crypto_op_t * ops[],
 141                          u32 n_ops, u32 block_size, u32 hash_size,
 142                          u32 digest_size, JOB_HASH_ALG alg)
 143 {
 144   ipsecmb_main_t *imbm = &ipsecmb_main;
 145   ipsecmb_per_thread_data_t *ptd = vec_elt_at_index (imbm->per_thread_data,
 146                                                      vm->thread_index);
 147   JOB_AES_HMAC *job;
 148   u32 i, n_fail = 0;
 149   u8 scratch[n_ops][digest_size];
 150
 151   /*
 152    * queue all the jobs first ...
 153    */
 154   for (i = 0; i < n_ops; i++)
 155     {
 156       vnet_crypto_op_t *op = ops[i];
 157       u8 *kd = (u8 *) imbm->key_data[op->key_index];
 158
 159       job = IMB_GET_NEXT_JOB (ptd->mgr);
 160
 161       job->src = op->src;
 162       job->hash_start_src_offset_in_bytes = 0;
 163       job->msg_len_to_hash_in_bytes = op->len;
 164       job->hash_alg = alg;
 165       job->auth_tag_output_len_in_bytes = digest_size;
 166       job->auth_tag_output = scratch[i];
 167
 168       job->cipher_mode = NULL_CIPHER;
 169       job->cipher_direction = DECRYPT;
 170       job->chain_order = HASH_CIPHER;
 171
 172       job->u.HMAC._hashed_auth_key_xor_ipad = kd;
 173       job->u.HMAC._hashed_auth_key_xor_opad = kd + hash_size;
 174       job->user_data = op;
 175
 176       job = IMB_SUBMIT_JOB (ptd->mgr);
 177
 178       if (job)
 179         ipsecmb_retire_hmac_job (job, &n_fail, digest_size);
 180     }
 181
 182   while ((job = IMB_FLUSH_JOB (ptd->mgr)))
 183     ipsecmb_retire_hmac_job (job, &n_fail, digest_size);
 184
 185   return n_ops - n_fail;
 186 }
 187
 188 #define _(a, b, c, d, e, f)                                             \
 189 static_always_inline u32                                                \
 190 ipsecmb_ops_hmac_##a (vlib_main_t * vm,                                 \
 191                       vnet_crypto_op_t * ops[],                         \
 192                       u32 n_ops)                                        \
 193 { return ipsecmb_ops_hmac_inline (vm, ops, n_ops, d, e, f, b); }        \
 194
 195 foreach_ipsecmb_hmac_op;
 196 #undef _
 197
 198 always_inline void
 199 ipsecmb_retire_cipher_job (JOB_AES_HMAC * job, u32 * n_fail)
 200 {
 201   vnet_crypto_op_t *op = job->user_data;
 202
 203   if (PREDICT_FALSE (STS_COMPLETED != job->status))
 204     {
 205       op->status = ipsecmb_status_job (job->status);
 206       *n_fail = *n_fail + 1;
 207     }
 208   else
 209     op->status = VNET_CRYPTO_OP_STATUS_COMPLETED;
 210 }
 211
 212 static_always_inline u32
 213 ipsecmb_ops_cbc_cipher_inline (vlib_main_t * vm, vnet_crypto_op_t * ops[],
 214                                u32 n_ops, u32 key_len,
 215                                JOB_CIPHER_DIRECTION direction)
 216 {
 217   ipsecmb_main_t *imbm = &ipsecmb_main;
 218   ipsecmb_per_thread_data_t *ptd = vec_elt_at_index (imbm->per_thread_data,
 219                                                      vm->thread_index);
 220   JOB_AES_HMAC *job;
 221   u32 i, n_fail = 0;
 222
 223   for (i = 0; i < n_ops; i++)
 224     {
 225       ipsecmb_aes_cbc_key_data_t *kd;
 226       vnet_crypto_op_t *op = ops[i];
 227       kd = (ipsecmb_aes_cbc_key_data_t *) imbm->key_data[op->key_index];
 228       __m128i iv;
 229
 230       job = IMB_GET_NEXT_JOB (ptd->mgr);
 231
 232       job->src = op->src;
 233       job->dst = op->dst;
 234       job->msg_len_to_cipher_in_bytes = op->len;
 235       job->cipher_start_src_offset_in_bytes = 0;
 236
 237       job->hash_alg = NULL_HASH;
 238       job->cipher_mode = CBC;
 239       job->cipher_direction = direction;
 240       job->chain_order = (direction == ENCRYPT ? CIPHER_HASH : HASH_CIPHER);
 241
 242       if ((direction == ENCRYPT) && (op->flags & VNET_CRYPTO_OP_FLAG_INIT_IV))
 243         {
 244           iv = ptd->cbc_iv;
 245           _mm_storeu_si128 ((__m128i *) op->iv, iv);
 246           ptd->cbc_iv = _mm_aesenc_si128 (iv, iv);
 247         }
 248
 249       job->aes_key_len_in_bytes = key_len / 8;
 250       job->aes_enc_key_expanded = kd->enc_key_exp;
 251       job->aes_dec_key_expanded = kd->dec_key_exp;
 252       job->iv = op->iv;
 253       job->iv_len_in_bytes = AES_BLOCK_SIZE;
 254
 255       job->user_data = op;
 256
 257       job = IMB_SUBMIT_JOB (ptd->mgr);
 258
 259       if (job)
 260         ipsecmb_retire_cipher_job (job, &n_fail);
 261     }
 262
 263   while ((job = IMB_FLUSH_JOB (ptd->mgr)))
 264     ipsecmb_retire_cipher_job (job, &n_fail);
 265
 266   return n_ops - n_fail;
 267 }
 268
 269 #define _(a, b)                                                              \
 270 static_always_inline u32                                                     \
 271 ipsecmb_ops_cbc_cipher_enc_##a (vlib_main_t * vm,                            \
 272                                 vnet_crypto_op_t * ops[],                    \
 273                                 u32 n_ops)                                   \
 274 { return ipsecmb_ops_cbc_cipher_inline (vm, ops, n_ops, b, ENCRYPT); }       \
 275                                                                              \
 276 static_always_inline u32                                                     \
 277 ipsecmb_ops_cbc_cipher_dec_##a (vlib_main_t * vm,                            \
 278                                 vnet_crypto_op_t * ops[],                    \
 279                                 u32 n_ops)                                   \
 280 { return ipsecmb_ops_cbc_cipher_inline (vm, ops, n_ops, b, DECRYPT); }       \
 281
 282 foreach_ipsecmb_cbc_cipher_op;
 283 #undef _
 284
 285 #define _(a, b)                                                              \
 286 static_always_inline u32                                                     \
 287 ipsecmb_ops_gcm_cipher_enc_##a##_chained (vlib_main_t * vm,                  \
 288     vnet_crypto_op_t * ops[], vnet_crypto_op_chunk_t *chunks, u32 n_ops)     \
 289 {                                                                            \
 290   ipsecmb_main_t *imbm = &ipsecmb_main;                                      \
 291   ipsecmb_per_thread_data_t *ptd = vec_elt_at_index (imbm->per_thread_data,  \
 292                                                      vm->thread_index);      \
 293   MB_MGR *m = ptd->mgr;                                                      \
 294   vnet_crypto_op_chunk_t *chp;                                               \
 295   u32 i, j;                                                                  \
 296                                                                              \
 297   for (i = 0; i < n_ops; i++)                                                \
 298     {                                                                        \
 299       struct gcm_key_data *kd;                                               \
 300       struct gcm_context_data ctx;                                           \
 301       vnet_crypto_op_t *op = ops[i];                                         \
 302                                                                              \
 303       kd = (struct gcm_key_data *) imbm->key_data[op->key_index];            \
 304       ASSERT (op->flags & VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS);              \
 305       IMB_AES##b##_GCM_INIT(m, kd, &ctx, op->iv, op->aad, op->aad_len);      \
 306       chp = chunks + op->chunk_index;                                        \
 307       for (j = 0; j < op->n_chunks; j++)                                     \
 308         {                                                                    \
 309           IMB_AES##b##_GCM_ENC_UPDATE (m, kd, &ctx, chp->dst, chp->src,      \
 310                                        chp->len);                            \
 311           chp += 1;                                                          \
 312         }                                                                    \
 313       IMB_AES##b##_GCM_ENC_FINALIZE(m, kd, &ctx, op->tag, op->tag_len);      \
 314                                                                              \
 315       op->status = VNET_CRYPTO_OP_STATUS_COMPLETED;                          \
 316     }                                                                        \
 317                                                                              \
 318   return n_ops;                                                              \
 319 }                                                                            \
 320                                                                              \
 321 static_always_inline u32                                                     \
 322 ipsecmb_ops_gcm_cipher_enc_##a (vlib_main_t * vm, vnet_crypto_op_t * ops[],  \
 323                                 u32 n_ops)                                   \
 324 {                                                                            \
 325   ipsecmb_main_t *imbm = &ipsecmb_main;                                      \
 326   ipsecmb_per_thread_data_t *ptd = vec_elt_at_index (imbm->per_thread_data,  \
 327                                                      vm->thread_index);      \
 328   MB_MGR *m = ptd->mgr;                                                      \
 329   u32 i;                                                                     \
 330                                                                              \
 331   for (i = 0; i < n_ops; i++)                                                \
 332     {                                                                        \
 333       struct gcm_key_data *kd;                                               \
 334       struct gcm_context_data ctx;                                           \
 335       vnet_crypto_op_t *op = ops[i];                                         \
 336                                                                              \
 337       kd = (struct gcm_key_data *) imbm->key_data[op->key_index];            \
 338       IMB_AES##b##_GCM_ENC (m, kd, &ctx, op->dst, op->src, op->len, op->iv,  \
 339                             op->aad, op->aad_len, op->tag, op->tag_len);     \
 340                                                                              \
 341       op->status = VNET_CRYPTO_OP_STATUS_COMPLETED;                          \
 342     }                                                                        \
 343                                                                              \
 344   return n_ops;                                                              \
 345 }                                                                            \
 346                                                                              \
 347 static_always_inline u32                                                     \
 348 ipsecmb_ops_gcm_cipher_dec_##a##_chained (vlib_main_t * vm,                  \
 349     vnet_crypto_op_t * ops[], vnet_crypto_op_chunk_t *chunks, u32 n_ops)     \
 350 {                                                                            \
 351   ipsecmb_main_t *imbm = &ipsecmb_main;                                      \
 352   ipsecmb_per_thread_data_t *ptd = vec_elt_at_index (imbm->per_thread_data,  \
 353                                                      vm->thread_index);      \
 354   MB_MGR *m = ptd->mgr;                                                      \
 355   vnet_crypto_op_chunk_t *chp;                                               \
 356   u32 i, j, n_failed = 0;                                                    \
 357                                                                              \
 358   for (i = 0; i < n_ops; i++)                                                \
 359     {                                                                        \
 360       struct gcm_key_data *kd;                                               \
 361       struct gcm_context_data ctx;                                           \
 362       vnet_crypto_op_t *op = ops[i];                                         \
 363       u8 scratch[64];                                                        \
 364                                                                              \
 365       kd = (struct gcm_key_data *) imbm->key_data[op->key_index];            \
 366       ASSERT (op->flags & VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS);              \
 367       IMB_AES##b##_GCM_INIT(m, kd, &ctx, op->iv, op->aad, op->aad_len);      \
 368       chp = chunks + op->chunk_index;                                        \
 369       for (j = 0; j < op->n_chunks; j++)                                     \
 370         {                                                                    \
 371           IMB_AES##b##_GCM_DEC_UPDATE (m, kd, &ctx, chp->dst, chp->src,      \
 372                                        chp->len);                            \
 373           chp += 1;                                                          \
 374         }                                                                    \
 375       IMB_AES##b##_GCM_DEC_FINALIZE(m, kd, &ctx, scratch, op->tag_len);      \
 376                                                                              \
 377       if ((memcmp (op->tag, scratch, op->tag_len)))                          \
 378         {                                                                    \
 379           op->status = VNET_CRYPTO_OP_STATUS_FAIL_BAD_HMAC;                  \
 380           n_failed++;                                                        \
 381         }                                                                    \
 382       else                                                                   \
 383         op->status = VNET_CRYPTO_OP_STATUS_COMPLETED;                        \
 384     }                                                                        \
 385                                                                              \
 386   return n_ops - n_failed;                                                   \
 387 }                                                                            \
 388                                                                              \
 389 static_always_inline u32                                                     \
 390 ipsecmb_ops_gcm_cipher_dec_##a (vlib_main_t * vm, vnet_crypto_op_t * ops[],  \
 391                                  u32 n_ops)                                  \
 392 {                                                                            \
 393   ipsecmb_main_t *imbm = &ipsecmb_main;                                      \
 394   ipsecmb_per_thread_data_t *ptd = vec_elt_at_index (imbm->per_thread_data,  \
 395                                                      vm->thread_index);      \
 396   MB_MGR *m = ptd->mgr;                                                      \
 397   u32 i, n_failed = 0;                                                       \
 398                                                                              \
 399   for (i = 0; i < n_ops; i++)                                                \
 400     {                                                                        \
 401       struct gcm_key_data *kd;                                               \
 402       struct gcm_context_data ctx;                                           \
 403       vnet_crypto_op_t *op = ops[i];                                         \
 404       u8 scratch[64];                                                        \
 405                                                                              \
 406       kd = (struct gcm_key_data *) imbm->key_data[op->key_index];            \
 407       IMB_AES##b##_GCM_DEC (m, kd, &ctx, op->dst, op->src, op->len, op->iv,  \
 408                             op->aad, op->aad_len, scratch, op->tag_len);     \
 409                                                                              \
 410       if ((memcmp (op->tag, scratch, op->tag_len)))                          \
 411         {                                                                    \
 412           op->status = VNET_CRYPTO_OP_STATUS_FAIL_BAD_HMAC;                  \
 413           n_failed++;                                                        \
 414         }                                                                    \
 415       else                                                                   \
 416         op->status = VNET_CRYPTO_OP_STATUS_COMPLETED;                        \
 417     }                                                                        \
 418                                                                              \
 419   return n_ops - n_failed;                                                   \
 420 }
 421
 422 foreach_ipsecmb_gcm_cipher_op;
 423 #undef _
 424
 425 clib_error_t *
 426 crypto_ipsecmb_iv_init (ipsecmb_main_t * imbm)
 427 {
 428   ipsecmb_per_thread_data_t *ptd;
 429   clib_error_t *err = 0;
 430   int fd;
 431
 432   if ((fd = open ("/dev/urandom", O_RDONLY)) < 0)
 433     return clib_error_return_unix (0, "failed to open '/dev/urandom'");
 434
 435   vec_foreach (ptd, imbm->per_thread_data)
 436   {
 437     if (read (fd, &ptd->cbc_iv, sizeof (ptd->cbc_iv)) != sizeof (ptd->cbc_iv))
 438       {
 439         err = clib_error_return_unix (0, "'/dev/urandom' read failure");
 440         close (fd);
 441         return (err);
 442       }
 443   }
 444
 445   close (fd);
 446   return (NULL);
 447 }
 448
 449 static void
 450 crypto_ipsecmb_key_handler (vlib_main_t * vm, vnet_crypto_key_op_t kop,
 451                             vnet_crypto_key_index_t idx)
 452 {
 453   ipsecmb_main_t *imbm = &ipsecmb_main;
 454   vnet_crypto_key_t *key = vnet_crypto_get_key (idx);
 455   ipsecmb_alg_data_t *ad = imbm->alg_data + key->alg;
 456   u32 i;
 457   void *kd;
 458
 459   /** TODO: add linked alg support **/
 460   if (key->type == VNET_CRYPTO_KEY_TYPE_LINK)
 461     return;
 462
 463   if (kop == VNET_CRYPTO_KEY_OP_DEL)
 464     {
 465       if (idx >= vec_len (imbm->key_data))
 466         return;
 467
 468       if (imbm->key_data[idx] == 0)
 469         return;
 470
 471       clib_mem_free_s (imbm->key_data[idx]);
 472       imbm->key_data[idx] = 0;
 473       return;
 474     }
 475
 476   if (ad->data_size == 0)
 477     return;
 478
 479   vec_validate_aligned (imbm->key_data, idx, CLIB_CACHE_LINE_BYTES);
 480
 481   if (kop == VNET_CRYPTO_KEY_OP_MODIFY && imbm->key_data[idx])
 482     {
 483       clib_mem_free_s (imbm->key_data[idx]);
 484     }
 485
 486   kd = imbm->key_data[idx] = clib_mem_alloc_aligned (ad->data_size,
 487                                                      CLIB_CACHE_LINE_BYTES);
 488
 489   /* AES CBC key expansion */
 490   if (ad->keyexp)
 491     {
 492       ad->keyexp (key->data, ((ipsecmb_aes_cbc_key_data_t *) kd)->enc_key_exp,
 493                   ((ipsecmb_aes_cbc_key_data_t *) kd)->dec_key_exp);
 494       return;
 495     }
 496
 497   /* AES GCM */
 498   if (ad->aes_gcm_pre)
 499     {
 500       ad->aes_gcm_pre (key->data, (struct gcm_key_data *) kd);
 501       return;
 502     }
 503
 504   /* HMAC */
 505   if (ad->hash_one_block)
 506     {
 507       const int block_qw = HMAC_MAX_BLOCK_SIZE / sizeof (u64);
 508       u64 pad[block_qw], key_hash[block_qw];
 509
 510       clib_memset_u8 (key_hash, 0, HMAC_MAX_BLOCK_SIZE);
 511       if (vec_len (key->data) <= ad->block_size)
 512         clib_memcpy_fast (key_hash, key->data, vec_len (key->data));
 513       else
 514         ad->hash_fn (key->data, vec_len (key->data), key_hash);
 515
 516       for (i = 0; i < block_qw; i++)
 517         pad[i] = key_hash[i] ^ 0x3636363636363636;
 518       ad->hash_one_block (pad, kd);
 519
 520       for (i = 0; i < block_qw; i++)
 521         pad[i] = key_hash[i] ^ 0x5c5c5c5c5c5c5c5c;
 522       ad->hash_one_block (pad, ((u8 *) kd) + (ad->data_size / 2));
 523
 524       return;
 525     }
 526 }
 527
 528 static clib_error_t *
 529 crypto_ipsecmb_init (vlib_main_t * vm)
 530 {
 531   ipsecmb_main_t *imbm = &ipsecmb_main;
 532   ipsecmb_alg_data_t *ad;
 533   ipsecmb_per_thread_data_t *ptd;
 534   vlib_thread_main_t *tm = vlib_get_thread_main ();
 535   clib_error_t *error;
 536   MB_MGR *m = 0;
 537   u32 eidx;
 538   u8 *name;
 539
 540   if (!clib_cpu_supports_aes ())
 541     return 0;
 542
 543   /*
 544    * A priority that is better than OpenSSL but worse than VPP natvie
 545    */
 546   name = format (0, "Intel(R) Multi-Buffer Crypto for IPsec Library %s%c",
 547                  IMB_VERSION_STR, 0);
 548   eidx = vnet_crypto_register_engine (vm, "ipsecmb", 80, (char *) name);
 549
 550   vec_validate_aligned (imbm->per_thread_data, tm->n_vlib_mains - 1,
 551                         CLIB_CACHE_LINE_BYTES);
 552
 553   /* *INDENT-OFF* */
 554   vec_foreach (ptd, imbm->per_thread_data)
 555     {
 556         ptd->mgr = alloc_mb_mgr (0);
 557         if (clib_cpu_supports_avx512f ())
 558           init_mb_mgr_avx512 (ptd->mgr);
 559         else if (clib_cpu_supports_avx2 ())
 560           init_mb_mgr_avx2 (ptd->mgr);
 561         else
 562           init_mb_mgr_sse (ptd->mgr);
 563
 564         if (ptd == imbm->per_thread_data)
 565           m = ptd->mgr;
 566     }
 567   /* *INDENT-ON* */
 568
 569   if (clib_cpu_supports_x86_aes () && (error = crypto_ipsecmb_iv_init (imbm)))
 570     return (error);
 571
 572 #define _(a, b, c, d, e, f)                                              \
 573   vnet_crypto_register_ops_handler (vm, eidx, VNET_CRYPTO_OP_##a##_HMAC, \
 574                                     ipsecmb_ops_hmac_##a);               \
 575   ad = imbm->alg_data + VNET_CRYPTO_ALG_HMAC_##a;                        \
 576   ad->block_size = d;                                                    \
 577   ad->data_size = e * 2;                                                 \
 578   ad->hash_one_block = m-> c##_one_block;                                \
 579   ad->hash_fn = m-> c;                                                   \
 580
 581   foreach_ipsecmb_hmac_op;
 582 #undef _
 583 #define _(a, b)                                                         \
 584   vnet_crypto_register_ops_handler (vm, eidx, VNET_CRYPTO_OP_##a##_ENC, \
 585                                     ipsecmb_ops_cbc_cipher_enc_##a);    \
 586   vnet_crypto_register_ops_handler (vm, eidx, VNET_CRYPTO_OP_##a##_DEC, \
 587                                     ipsecmb_ops_cbc_cipher_dec_##a);    \
 588   ad = imbm->alg_data + VNET_CRYPTO_ALG_##a;                            \
 589   ad->data_size = sizeof (ipsecmb_aes_cbc_key_data_t);                  \
 590   ad->keyexp = m->keyexp_##b;                                           \
 591
 592   foreach_ipsecmb_cbc_cipher_op;
 593 #undef _
 594 #define _(a, b)                                                         \
 595   vnet_crypto_register_ops_handler (vm, eidx, VNET_CRYPTO_OP_##a##_ENC, \
 596                                     ipsecmb_ops_gcm_cipher_enc_##a);    \
 597   vnet_crypto_register_ops_handler (vm, eidx, VNET_CRYPTO_OP_##a##_DEC, \
 598                                     ipsecmb_ops_gcm_cipher_dec_##a);    \
 599   vnet_crypto_register_chained_ops_handler                              \
 600       (vm, eidx, VNET_CRYPTO_OP_##a##_ENC,                              \
 601        ipsecmb_ops_gcm_cipher_enc_##a##_chained);                       \
 602   vnet_crypto_register_chained_ops_handler                              \
 603       (vm, eidx, VNET_CRYPTO_OP_##a##_DEC,                              \
 604        ipsecmb_ops_gcm_cipher_dec_##a##_chained);                       \
 605   ad = imbm->alg_data + VNET_CRYPTO_ALG_##a;                            \
 606   ad->data_size = sizeof (struct gcm_key_data);                         \
 607   ad->aes_gcm_pre = m->gcm##b##_pre;                                    \
 608
 609   foreach_ipsecmb_gcm_cipher_op;
 610 #undef _
 611
 612   vnet_crypto_register_key_handler (vm, eidx, crypto_ipsecmb_key_handler);
 613   return (NULL);
 614 }
 615
 616 /* *INDENT-OFF* */
 617 VLIB_INIT_FUNCTION (crypto_ipsecmb_init) =
 618 {
 619   .runs_after = VLIB_INITS ("vnet_crypto_init"),
 620 };
 621 /* *INDENT-ON* */
 622
 623 /* *INDENT-OFF* */
 624 VLIB_PLUGIN_REGISTER () =
 625 {
 626   .version = VPP_BUILD_VER,
 627   .description = "Intel IPSEC Multi-buffer Crypto Engine",
 628 };
 629 /* *INDENT-ON* */
 630
 631 /*
 632  * fd.io coding-style-patch-verification: ON
 633  *
 634  * Local Variables:
 635  * eval: (c-set-style "gnu")
 636  * End:
 637  */