src/vnet/crypto/crypto.h

   1 /*
   2  * Copyright (c) 2019 Cisco and/or its affiliates.
   3  * Licensed under the Apache License, Version 2.0 (the "License");
   4  * you may not use this file except in compliance with the License.
   5  * You may obtain a copy of the License at:
   6  *
   7  *     http://www.apache.org/licenses/LICENSE-2.0
   8  *
   9  * Unless required by applicable law or agreed to in writing, software
  10  * distributed under the License is distributed on an "AS IS" BASIS,
  11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12  * See the License for the specific language governing permissions and
  13  * limitations under the License.
  14  */
  15
  16 #ifndef included_vnet_crypto_crypto_h
  17 #define included_vnet_crypto_crypto_h
  18
  19 #include <vlib/vlib.h>
  20
  21 #define VNET_CRYPTO_FRAME_SIZE 64
  22 #define VNET_CRYPTO_FRAME_POOL_SIZE 1024
  23
  24 /* CRYPTO_ID, PRETTY_NAME, KEY_LENGTH_IN_BYTES */
  25 #define foreach_crypto_cipher_alg \
  26   _(DES_CBC,     "des-cbc", 7) \
  27   _(3DES_CBC,    "3des-cbc", 24) \
  28   _(AES_128_CBC, "aes-128-cbc", 16) \
  29   _(AES_192_CBC, "aes-192-cbc", 24) \
  30   _(AES_256_CBC, "aes-256-cbc", 32) \
  31   _(AES_128_CTR, "aes-128-ctr", 16) \
  32   _(AES_192_CTR, "aes-192-ctr", 24) \
  33   _(AES_256_CTR, "aes-256-ctr", 32)
  34
  35 /* CRYPTO_ID, PRETTY_NAME, KEY_LENGTH_IN_BYTES */
  36 #define foreach_crypto_aead_alg \
  37   _(AES_128_GCM, "aes-128-gcm", 16) \
  38   _(AES_192_GCM, "aes-192-gcm", 24) \
  39   _(AES_256_GCM, "aes-256-gcm", 32) \
  40   _(CHACHA20_POLY1305, "chacha20-poly1305", 32)
  41
  42 #define foreach_crypto_hash_alg                                               \
  43   _ (SHA1, "sha-1")                                                           \
  44   _ (SHA224, "sha-224")                                                       \
  45   _ (SHA256, "sha-256")                                                       \
  46   _ (SHA384, "sha-384")                                                       \
  47   _ (SHA512, "sha-512")
  48
  49 #define foreach_crypto_hmac_alg \
  50   _(MD5, "md5") \
  51   _(SHA1, "sha-1") \
  52   _(SHA224, "sha-224")  \
  53   _(SHA256, "sha-256")  \
  54   _(SHA384, "sha-384")  \
  55   _(SHA512, "sha-512")
  56
  57 #define foreach_crypto_op_type                                                \
  58   _ (ENCRYPT, "encrypt")                                                      \
  59   _ (DECRYPT, "decrypt")                                                      \
  60   _ (AEAD_ENCRYPT, "aead-encrypt")                                            \
  61   _ (AEAD_DECRYPT, "aead-decrypt")                                            \
  62   _ (HMAC, "hmac")                                                            \
  63   _ (HASH, "hash")
  64
  65 typedef enum
  66 {
  67 #define _(n, s) VNET_CRYPTO_OP_TYPE_##n,
  68   foreach_crypto_op_type
  69 #undef _
  70     VNET_CRYPTO_OP_N_TYPES,
  71 } vnet_crypto_op_type_t;
  72
  73 #define foreach_crypto_op_status \
  74   _(IDLE, "idle") \
  75   _(PENDING, "pending") \
  76   _(WORK_IN_PROGRESS, "work-in-progress") \
  77   _(COMPLETED, "completed") \
  78   _(FAIL_NO_HANDLER, "no-handler") \
  79   _(FAIL_BAD_HMAC, "bad-hmac") \
  80   _(FAIL_ENGINE_ERR, "engine-error")
  81
  82 /** async crypto **/
  83
  84 /* CRYPTO_ID, PRETTY_NAME, KEY_LENGTH_IN_BYTES, TAG_LEN, AAD_LEN */
  85 #define foreach_crypto_aead_async_alg                                         \
  86   _ (AES_128_GCM, "aes-128-gcm-aad8", 16, 16, 8)                              \
  87   _ (AES_128_GCM, "aes-128-gcm-aad12", 16, 16, 12)                            \
  88   _ (AES_192_GCM, "aes-192-gcm-aad8", 24, 16, 8)                              \
  89   _ (AES_192_GCM, "aes-192-gcm-aad12", 24, 16, 12)                            \
  90   _ (AES_256_GCM, "aes-256-gcm-aad8", 32, 16, 8)                              \
  91   _ (AES_256_GCM, "aes-256-gcm-aad12", 32, 16, 12)                            \
  92   _ (CHACHA20_POLY1305, "chacha20-poly1305-aad8", 32, 16, 8)                  \
  93   _ (CHACHA20_POLY1305, "chacha20-poly1305-aad12", 32, 16, 12)                \
  94   _ (CHACHA20_POLY1305, "chacha20-poly1305", 32, 16, 0)
  95
  96 /* CRYPTO_ID, INTEG_ID, PRETTY_NAME, KEY_LENGTH_IN_BYTES, DIGEST_LEN */
  97 #define foreach_crypto_link_async_alg                                         \
  98   _ (3DES_CBC, MD5, "3des-cbc-hmac-md5", 24, 12)                              \
  99   _ (AES_128_CBC, MD5, "aes-128-cbc-hmac-md5", 16, 12)                        \
 100   _ (AES_192_CBC, MD5, "aes-192-cbc-hmac-md5", 24, 12)                        \
 101   _ (AES_256_CBC, MD5, "aes-256-cbc-hmac-md5", 32, 12)                        \
 102   _ (3DES_CBC, SHA1, "3des-cbc-hmac-sha-1", 24, 12)                           \
 103   _ (AES_128_CBC, SHA1, "aes-128-cbc-hmac-sha-1", 16, 12)                     \
 104   _ (AES_192_CBC, SHA1, "aes-192-cbc-hmac-sha-1", 24, 12)                     \
 105   _ (AES_256_CBC, SHA1, "aes-256-cbc-hmac-sha-1", 32, 12)                     \
 106   _ (3DES_CBC, SHA224, "3des-cbc-hmac-sha-224", 24, 14)                       \
 107   _ (AES_128_CBC, SHA224, "aes-128-cbc-hmac-sha-224", 16, 14)                 \
 108   _ (AES_192_CBC, SHA224, "aes-192-cbc-hmac-sha-224", 24, 14)                 \
 109   _ (AES_256_CBC, SHA224, "aes-256-cbc-hmac-sha-224", 32, 14)                 \
 110   _ (3DES_CBC, SHA256, "3des-cbc-hmac-sha-256", 24, 16)                       \
 111   _ (AES_128_CBC, SHA256, "aes-128-cbc-hmac-sha-256", 16, 16)                 \
 112   _ (AES_192_CBC, SHA256, "aes-192-cbc-hmac-sha-256", 24, 16)                 \
 113   _ (AES_256_CBC, SHA256, "aes-256-cbc-hmac-sha-256", 32, 16)                 \
 114   _ (3DES_CBC, SHA384, "3des-cbc-hmac-sha-384", 24, 24)                       \
 115   _ (AES_128_CBC, SHA384, "aes-128-cbc-hmac-sha-384", 16, 24)                 \
 116   _ (AES_192_CBC, SHA384, "aes-192-cbc-hmac-sha-384", 24, 24)                 \
 117   _ (AES_256_CBC, SHA384, "aes-256-cbc-hmac-sha-384", 32, 24)                 \
 118   _ (3DES_CBC, SHA512, "3des-cbc-hmac-sha-512", 24, 32)                       \
 119   _ (AES_128_CBC, SHA512, "aes-128-cbc-hmac-sha-512", 16, 32)                 \
 120   _ (AES_192_CBC, SHA512, "aes-192-cbc-hmac-sha-512", 24, 32)                 \
 121   _ (AES_256_CBC, SHA512, "aes-256-cbc-hmac-sha-512", 32, 32)                 \
 122   _ (AES_128_CTR, SHA1, "aes-128-ctr-hmac-sha-1", 16, 12)                     \
 123   _ (AES_192_CTR, SHA1, "aes-192-ctr-hmac-sha-1", 24, 12)                     \
 124   _ (AES_256_CTR, SHA1, "aes-256-ctr-hmac-sha-1", 32, 12)
 125
 126 #define foreach_crypto_async_op_type \
 127   _(ENCRYPT, "async-encrypt") \
 128   _(DECRYPT, "async-decrypt")
 129
 130 typedef enum
 131 {
 132   VNET_CRYPTO_KEY_OP_ADD,
 133   VNET_CRYPTO_KEY_OP_DEL,
 134   VNET_CRYPTO_KEY_OP_MODIFY,
 135 } vnet_crypto_key_op_t;
 136
 137 typedef enum
 138 {
 139 #define _(n, s) VNET_CRYPTO_OP_STATUS_##n,
 140   foreach_crypto_op_status
 141 #undef _
 142     VNET_CRYPTO_OP_N_STATUS,
 143 } vnet_crypto_op_status_t;
 144
 145 /* *INDENT-OFF* */
 146 typedef enum
 147 {
 148   VNET_CRYPTO_ALG_NONE = 0,
 149 #define _(n, s, l) VNET_CRYPTO_ALG_##n,
 150   foreach_crypto_cipher_alg foreach_crypto_aead_alg
 151 #undef _
 152 #define _(n, s) VNET_CRYPTO_ALG_HMAC_##n,
 153     foreach_crypto_hmac_alg
 154 #undef _
 155 #define _(n, s) VNET_CRYPTO_ALG_HASH_##n,
 156       foreach_crypto_hash_alg
 157 #undef _
 158         VNET_CRYPTO_N_ALGS,
 159 } vnet_crypto_alg_t;
 160
 161 typedef enum
 162 {
 163 #define _(n, s) VNET_CRYPTO_ASYNC_OP_TYPE_##n,
 164   foreach_crypto_async_op_type
 165 #undef _
 166     VNET_CRYPTO_ASYNC_OP_N_TYPES,
 167 } vnet_crypto_async_op_type_t;
 168
 169 typedef enum
 170 {
 171   VNET_CRYPTO_ASYNC_ALG_NONE = 0,
 172 #define _(n, s, k, t, a) \
 173   VNET_CRYPTO_ALG_##n##_TAG##t##_AAD##a,
 174   foreach_crypto_aead_async_alg
 175 #undef _
 176 #define _(c, h, s, k ,d) \
 177   VNET_CRYPTO_ALG_##c##_##h##_TAG##d,
 178   foreach_crypto_link_async_alg
 179 #undef _
 180   VNET_CRYPTO_N_ASYNC_ALGS,
 181 } vnet_crypto_async_alg_t;
 182
 183 typedef enum
 184 {
 185   VNET_CRYPTO_ASYNC_OP_NONE = 0,
 186 #define _(n, s, k, t, a) \
 187   VNET_CRYPTO_OP_##n##_TAG##t##_AAD##a##_ENC, \
 188   VNET_CRYPTO_OP_##n##_TAG##t##_AAD##a##_DEC,
 189   foreach_crypto_aead_async_alg
 190 #undef _
 191 #define _(c, h, s, k ,d) \
 192   VNET_CRYPTO_OP_##c##_##h##_TAG##d##_ENC, \
 193   VNET_CRYPTO_OP_##c##_##h##_TAG##d##_DEC,
 194   foreach_crypto_link_async_alg
 195 #undef _
 196   VNET_CRYPTO_ASYNC_OP_N_IDS,
 197 } vnet_crypto_async_op_id_t;
 198
 199 typedef struct
 200 {
 201   union
 202   {
 203     struct
 204     {
 205       u8 *data;
 206       vnet_crypto_alg_t alg:8;
 207     };
 208     struct
 209     {
 210       u32 index_crypto;
 211       u32 index_integ;
 212       vnet_crypto_async_alg_t async_alg:8;
 213     };
 214   };
 215 #define VNET_CRYPTO_KEY_TYPE_DATA 0
 216 #define VNET_CRYPTO_KEY_TYPE_LINK 1
 217   u8 type;
 218 } vnet_crypto_key_t;
 219
 220 typedef enum
 221 {
 222   VNET_CRYPTO_OP_NONE = 0,
 223 #define _(n, s, l) VNET_CRYPTO_OP_##n##_ENC, VNET_CRYPTO_OP_##n##_DEC,
 224   foreach_crypto_cipher_alg foreach_crypto_aead_alg
 225 #undef _
 226 #define _(n, s) VNET_CRYPTO_OP_##n##_HMAC,
 227     foreach_crypto_hmac_alg
 228 #undef _
 229 #define _(n, s) VNET_CRYPTO_OP_##n##_HASH,
 230       foreach_crypto_hash_alg
 231 #undef _
 232         VNET_CRYPTO_N_OP_IDS,
 233 } vnet_crypto_op_id_t;
 234 /* *INDENT-ON* */
 235
 236 typedef enum
 237 {
 238   CRYPTO_OP_SIMPLE,
 239   CRYPTO_OP_CHAINED,
 240   CRYPTO_OP_BOTH,
 241 } crypto_op_class_type_t;
 242
 243 typedef struct
 244 {
 245   char *name;
 246   vnet_crypto_op_id_t op_by_type[VNET_CRYPTO_OP_N_TYPES];
 247 } vnet_crypto_alg_data_t;
 248
 249 typedef struct
 250 {
 251   u8 *src;
 252   u8 *dst;
 253   u32 len;
 254 } vnet_crypto_op_chunk_t;
 255
 256 typedef struct
 257 {
 258   CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
 259   uword user_data;
 260   vnet_crypto_op_id_t op:16;
 261   vnet_crypto_op_status_t status:8;
 262   u8 flags;
 263 #define VNET_CRYPTO_OP_FLAG_HMAC_CHECK      (1 << 0)
 264 #define VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS (1 << 1)
 265
 266   union
 267   {
 268     u8 digest_len;
 269     u8 tag_len;
 270   };
 271   u16 aad_len;
 272
 273   union
 274   {
 275     struct
 276     {
 277       u8 *src;
 278       u8 *dst;
 279     };
 280
 281     /* valid if VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS is set */
 282     u16 n_chunks;
 283   };
 284
 285   union
 286   {
 287     u32 len;
 288     /* valid if VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS is set */
 289     u32 chunk_index;
 290   };
 291
 292   u32 key_index;
 293   u8 *iv;
 294   u8 *aad;
 295
 296   union
 297   {
 298     u8 *tag;
 299     u8 *digest;
 300   };
 301 } vnet_crypto_op_t;
 302
 303 STATIC_ASSERT_SIZEOF (vnet_crypto_op_t, CLIB_CACHE_LINE_BYTES);
 304
 305 typedef struct
 306 {
 307   vnet_crypto_op_type_t type;
 308   vnet_crypto_alg_t alg;
 309   u32 active_engine_index_simple;
 310   u32 active_engine_index_chained;
 311 } vnet_crypto_op_data_t;
 312
 313 typedef struct
 314 {
 315   vnet_crypto_async_op_type_t type;
 316   vnet_crypto_async_alg_t alg;
 317   u32 active_engine_index_async;
 318 } vnet_crypto_async_op_data_t;
 319
 320 typedef struct
 321 {
 322   char *name;
 323   vnet_crypto_async_op_id_t op_by_type[VNET_CRYPTO_ASYNC_OP_N_TYPES];
 324 } vnet_crypto_async_alg_data_t;
 325
 326 typedef struct
 327 {
 328   u8 *iv;
 329   union
 330   {
 331     u8 *digest;
 332     u8 *tag;
 333   };
 334   u8 *aad;
 335   u32 key_index;
 336   u32 crypto_total_length;
 337   i16 crypto_start_offset; /* first buffer offset */
 338   i16 integ_start_offset;
 339   /* adj total_length for integ, e.g.4 bytes for IPSec ESN */
 340   i16 integ_length_adj;
 341   vnet_crypto_op_status_t status : 8;
 342   u8 flags; /**< share same VNET_CRYPTO_OP_FLAG_* values */
 343 } vnet_crypto_async_frame_elt_t;
 344
 345 /* Assert the size so the compiler will warn us when it changes */
 346 STATIC_ASSERT_SIZEOF (vnet_crypto_async_frame_elt_t, 5 * sizeof (u64));
 347
 348 typedef enum vnet_crypto_async_frame_state_t_
 349 {
 350   VNET_CRYPTO_FRAME_STATE_NOT_PROCESSED,
 351   /* frame waiting to be processed */
 352   VNET_CRYPTO_FRAME_STATE_PENDING,
 353   VNET_CRYPTO_FRAME_STATE_WORK_IN_PROGRESS,
 354   VNET_CRYPTO_FRAME_STATE_SUCCESS,
 355   VNET_CRYPTO_FRAME_STATE_ELT_ERROR
 356 } __clib_packed vnet_crypto_async_frame_state_t;
 357
 358 typedef struct
 359 {
 360   CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
 361   vnet_crypto_async_frame_state_t state;
 362   vnet_crypto_async_op_id_t op:8;
 363   u16 n_elts;
 364   vnet_crypto_async_frame_elt_t elts[VNET_CRYPTO_FRAME_SIZE];
 365   u32 buffer_indices[VNET_CRYPTO_FRAME_SIZE];
 366   u16 next_node_index[VNET_CRYPTO_FRAME_SIZE];
 367   u32 enqueue_thread_index;
 368 } vnet_crypto_async_frame_t;
 369
 370 typedef struct
 371 {
 372   CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
 373   vnet_crypto_async_frame_t *frame_pool;
 374   u32 *buffer_indices;
 375   u16 *nexts;
 376 } vnet_crypto_thread_t;
 377
 378 typedef u32 vnet_crypto_key_index_t;
 379
 380 typedef u32 (vnet_crypto_chained_ops_handler_t) (vlib_main_t * vm,
 381                                                  vnet_crypto_op_t * ops[],
 382                                                  vnet_crypto_op_chunk_t *
 383                                                  chunks, u32 n_ops);
 384
 385 typedef u32 (vnet_crypto_ops_handler_t) (vlib_main_t * vm,
 386                                          vnet_crypto_op_t * ops[], u32 n_ops);
 387
 388 typedef void (vnet_crypto_key_handler_t) (vlib_main_t * vm,
 389                                           vnet_crypto_key_op_t kop,
 390                                           vnet_crypto_key_index_t idx);
 391
 392 /** async crypto function handlers **/
 393 typedef int
 394   (vnet_crypto_frame_enqueue_t) (vlib_main_t * vm,
 395                                  vnet_crypto_async_frame_t * frame);
 396 typedef vnet_crypto_async_frame_t *
 397   (vnet_crypto_frame_dequeue_t) (vlib_main_t * vm, u32 * nb_elts_processed,
 398                                  u32 * enqueue_thread_idx);
 399
 400 u32
 401 vnet_crypto_register_engine (vlib_main_t * vm, char *name, int prio,
 402                              char *desc);
 403
 404 void vnet_crypto_register_ops_handler (vlib_main_t * vm, u32 engine_index,
 405                                        vnet_crypto_op_id_t opt,
 406                                        vnet_crypto_ops_handler_t * oph);
 407
 408 void vnet_crypto_register_chained_ops_handler (vlib_main_t * vm,
 409                                                u32 engine_index,
 410                                                vnet_crypto_op_id_t opt,
 411                                                vnet_crypto_chained_ops_handler_t
 412                                                * oph);
 413
 414 void vnet_crypto_register_ops_handlers (vlib_main_t * vm, u32 engine_index,
 415                                         vnet_crypto_op_id_t opt,
 416                                         vnet_crypto_ops_handler_t * fn,
 417                                         vnet_crypto_chained_ops_handler_t *
 418                                         cfn);
 419
 420 void vnet_crypto_register_key_handler (vlib_main_t * vm, u32 engine_index,
 421                                        vnet_crypto_key_handler_t * keyh);
 422
 423 /** async crypto register functions */
 424 u32 vnet_crypto_register_post_node (vlib_main_t * vm, char *post_node_name);
 425
 426 void
 427 vnet_crypto_register_enqueue_handler (vlib_main_t *vm, u32 engine_index,
 428                                       vnet_crypto_async_op_id_t opt,
 429                                       vnet_crypto_frame_enqueue_t *enq_fn);
 430
 431 void
 432 vnet_crypto_register_dequeue_handler (vlib_main_t *vm, u32 engine_index,
 433                                       vnet_crypto_frame_dequeue_t *deq_fn);
 434
 435 typedef struct
 436 {
 437   char *name;
 438   char *desc;
 439   int priority;
 440   vnet_crypto_key_handler_t *key_op_handler;
 441   vnet_crypto_ops_handler_t *ops_handlers[VNET_CRYPTO_N_OP_IDS];
 442     vnet_crypto_chained_ops_handler_t
 443     * chained_ops_handlers[VNET_CRYPTO_N_OP_IDS];
 444   vnet_crypto_frame_enqueue_t *enqueue_handlers[VNET_CRYPTO_ASYNC_OP_N_IDS];
 445   vnet_crypto_frame_dequeue_t *dequeue_handler;
 446 } vnet_crypto_engine_t;
 447
 448 typedef struct
 449 {
 450   u32 node_idx;
 451   u32 next_idx;
 452 } vnet_crypto_async_next_node_t;
 453
 454 typedef struct
 455 {
 456   vnet_crypto_alg_data_t *algs;
 457   vnet_crypto_thread_t *threads;
 458   vnet_crypto_ops_handler_t **ops_handlers;
 459   vnet_crypto_chained_ops_handler_t **chained_ops_handlers;
 460   vnet_crypto_frame_enqueue_t **enqueue_handlers;
 461   vnet_crypto_frame_dequeue_t **dequeue_handlers;
 462   vnet_crypto_op_data_t opt_data[VNET_CRYPTO_N_OP_IDS];
 463   vnet_crypto_async_op_data_t async_opt_data[VNET_CRYPTO_ASYNC_OP_N_IDS];
 464   vnet_crypto_engine_t *engines;
 465   vnet_crypto_key_t *keys;
 466   uword *engine_index_by_name;
 467   uword *alg_index_by_name;
 468   uword *async_alg_index_by_name;
 469   vnet_crypto_async_alg_data_t *async_algs;
 470   vnet_crypto_async_next_node_t *next_nodes;
 471   u32 crypto_node_index;
 472 } vnet_crypto_main_t;
 473
 474 extern vnet_crypto_main_t crypto_main;
 475
 476 u32 vnet_crypto_process_chained_ops (vlib_main_t * vm, vnet_crypto_op_t ops[],
 477                                      vnet_crypto_op_chunk_t * chunks,
 478                                      u32 n_ops);
 479 u32 vnet_crypto_process_ops (vlib_main_t * vm, vnet_crypto_op_t ops[],
 480                              u32 n_ops);
 481
 482
 483 int vnet_crypto_set_handler2 (char *ops_handler_name, char *engine,
 484                               crypto_op_class_type_t oct);
 485 int vnet_crypto_is_set_handler (vnet_crypto_alg_t alg);
 486
 487 u32 vnet_crypto_key_add (vlib_main_t * vm, vnet_crypto_alg_t alg,
 488                          u8 * data, u16 length);
 489 void vnet_crypto_key_del (vlib_main_t * vm, vnet_crypto_key_index_t index);
 490
 491 /**
 492  * Use 2 created keys to generate new key for linked algs (cipher + integ)
 493  * The returned key index is to be used for linked alg only.
 494  **/
 495 u32 vnet_crypto_key_add_linked (vlib_main_t * vm,
 496                                 vnet_crypto_key_index_t index_crypto,
 497                                 vnet_crypto_key_index_t index_integ);
 498
 499 int vnet_crypto_set_async_handler2 (char *alg_name, char *engine);
 500
 501 int vnet_crypto_is_set_async_handler (vnet_crypto_async_op_id_t opt);
 502
 503 vnet_crypto_async_alg_t vnet_crypto_link_algs (vnet_crypto_alg_t crypto_alg,
 504                                                vnet_crypto_alg_t integ_alg);
 505
 506 format_function_t format_vnet_crypto_alg;
 507 format_function_t format_vnet_crypto_engine;
 508 format_function_t format_vnet_crypto_op;
 509 format_function_t format_vnet_crypto_op_type;
 510 format_function_t format_vnet_crypto_op_status;
 511 unformat_function_t unformat_vnet_crypto_alg;
 512
 513 format_function_t format_vnet_crypto_async_op;
 514 format_function_t format_vnet_crypto_async_alg;
 515 format_function_t format_vnet_crypto_async_op_type;
 516
 517 static_always_inline void
 518 vnet_crypto_op_init (vnet_crypto_op_t * op, vnet_crypto_op_id_t type)
 519 {
 520   if (CLIB_DEBUG > 0)
 521     clib_memset (op, 0xfe, sizeof (*op));
 522   op->op = type;
 523   op->flags = 0;
 524   op->key_index = ~0;
 525   op->n_chunks = 0;
 526 }
 527
 528 static_always_inline vnet_crypto_op_type_t
 529 vnet_crypto_get_op_type (vnet_crypto_op_id_t id)
 530 {
 531   vnet_crypto_main_t *cm = &crypto_main;
 532   ASSERT (id < VNET_CRYPTO_N_OP_IDS);
 533   vnet_crypto_op_data_t *od = cm->opt_data + id;
 534   return od->type;
 535 }
 536
 537 static_always_inline vnet_crypto_key_t *
 538 vnet_crypto_get_key (vnet_crypto_key_index_t index)
 539 {
 540   vnet_crypto_main_t *cm = &crypto_main;
 541   return vec_elt_at_index (cm->keys, index);
 542 }
 543
 544 static_always_inline int
 545 vnet_crypto_set_handler (char *alg_name, char *engine)
 546 {
 547   return vnet_crypto_set_handler2 (alg_name, engine, CRYPTO_OP_BOTH);
 548 }
 549
 550 /** async crypto inline functions **/
 551
 552 static_always_inline vnet_crypto_async_frame_t *
 553 vnet_crypto_async_get_frame (vlib_main_t * vm, vnet_crypto_async_op_id_t opt)
 554 {
 555   vnet_crypto_main_t *cm = &crypto_main;
 556   vnet_crypto_thread_t *ct = cm->threads + vm->thread_index;
 557   vnet_crypto_async_frame_t *f = NULL;
 558
 559   if (PREDICT_TRUE (pool_free_elts (ct->frame_pool)))
 560     {
 561       pool_get_aligned (ct->frame_pool, f, CLIB_CACHE_LINE_BYTES);
 562 #if CLIB_DEBUG > 0
 563       clib_memset (f, 0xfe, sizeof (*f));
 564 #endif
 565       f->state = VNET_CRYPTO_FRAME_STATE_NOT_PROCESSED;
 566       f->op = opt;
 567       f->n_elts = 0;
 568     }
 569
 570   return f;
 571 }
 572
 573 static_always_inline void
 574 vnet_crypto_async_free_frame (vlib_main_t * vm,
 575                               vnet_crypto_async_frame_t * frame)
 576 {
 577   vnet_crypto_main_t *cm = &crypto_main;
 578   vnet_crypto_thread_t *ct = cm->threads + vm->thread_index;
 579   pool_put (ct->frame_pool, frame);
 580 }
 581
 582 static_always_inline int
 583 vnet_crypto_async_submit_open_frame (vlib_main_t * vm,
 584                                      vnet_crypto_async_frame_t * frame)
 585 {
 586   vnet_crypto_main_t *cm = &crypto_main;
 587   vlib_thread_main_t *tm = vlib_get_thread_main ();
 588   u32 i;
 589   vlib_node_t *n;
 590
 591   frame->state = VNET_CRYPTO_FRAME_STATE_PENDING;
 592   frame->enqueue_thread_index = vm->thread_index;
 593
 594   if (PREDICT_FALSE (cm->enqueue_handlers == NULL))
 595     {
 596       frame->state = VNET_CRYPTO_FRAME_STATE_ELT_ERROR;
 597       return -1;
 598     }
 599
 600   int ret = (cm->enqueue_handlers[frame->op]) (vm, frame);
 601
 602   if (PREDICT_TRUE (ret == 0))
 603     {
 604       n = vlib_get_node (vm, cm->crypto_node_index);
 605       if (n->state == VLIB_NODE_STATE_INTERRUPT)
 606         {
 607           for (i = 0; i < tm->n_vlib_mains; i++)
 608             vlib_node_set_interrupt_pending (vlib_get_main_by_index (i),
 609                                              cm->crypto_node_index);
 610         }
 611     }
 612   else
 613     {
 614       frame->state = VNET_CRYPTO_FRAME_STATE_ELT_ERROR;
 615     }
 616
 617   return ret;
 618 }
 619
 620 static_always_inline void
 621 vnet_crypto_async_add_to_frame (vlib_main_t *vm, vnet_crypto_async_frame_t *f,
 622                                 u32 key_index, u32 crypto_len,
 623                                 i16 integ_len_adj, i16 crypto_start_offset,
 624                                 i16 integ_start_offset, u32 buffer_index,
 625                                 u16 next_node, u8 *iv, u8 *tag, u8 *aad,
 626                                 u8 flags)
 627 {
 628   vnet_crypto_async_frame_elt_t *fe;
 629   u16 index;
 630
 631   ASSERT (f->n_elts < VNET_CRYPTO_FRAME_SIZE);
 632
 633   index = f->n_elts;
 634   fe = &f->elts[index];
 635   f->n_elts++;
 636   fe->key_index = key_index;
 637   fe->crypto_total_length = crypto_len;
 638   fe->crypto_start_offset = crypto_start_offset;
 639   fe->integ_start_offset = integ_start_offset;
 640   fe->integ_length_adj = integ_len_adj;
 641   fe->iv = iv;
 642   fe->tag = tag;
 643   fe->aad = aad;
 644   fe->flags = flags;
 645   f->buffer_indices[index] = buffer_index;
 646   f->next_node_index[index] = next_node;
 647 }
 648
 649 static_always_inline void
 650 vnet_crypto_async_reset_frame (vnet_crypto_async_frame_t * f)
 651 {
 652   vnet_crypto_async_op_id_t opt;
 653   ASSERT (f != 0);
 654   ASSERT ((f->state == VNET_CRYPTO_FRAME_STATE_NOT_PROCESSED
 655            || f->state == VNET_CRYPTO_FRAME_STATE_ELT_ERROR));
 656   opt = f->op;
 657   if (CLIB_DEBUG > 0)
 658     clib_memset (f, 0xfe, sizeof (*f));
 659   f->state = VNET_CRYPTO_FRAME_STATE_NOT_PROCESSED;
 660   f->op = opt;
 661   f->n_elts = 0;
 662 }
 663
 664 static_always_inline u8
 665 vnet_crypto_async_frame_is_full (const vnet_crypto_async_frame_t *f)
 666 {
 667   return (f->n_elts == VNET_CRYPTO_FRAME_SIZE);
 668 }
 669
 670 #endif /* included_vnet_crypto_crypto_h */
 671
 672 /*
 673  * fd.io coding-style-patch-verification: ON
 674  *
 675  * Local Variables:
 676  * eval: (c-set-style "gnu")
 677  * End:
 678  */