summaryrefslogtreecommitdiffstats
path: root/src/vnet/crypto/crypto.h
blob: 8f12a7216b0afd0782ab6f7f42f8337fea190dbe (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
/*
 * Copyright (c) 2019 Cisco and/or its affiliates.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef included_vnet_crypto_crypto_h
#define included_vnet_crypto_crypto_h

#include <vlib/vlib.h>

#define VNET_CRYPTO_FRAME_SIZE 64
#define VNET_CRYPTO_FRAME_POOL_SIZE 1024

/* CRYPTO_ID, PRETTY_NAME, KEY_LENGTH_IN_BYTES */
#define foreach_crypto_cipher_alg \
  _(DES_CBC,     "des-cbc", 7) \
  _(3DES_CBC,    "3des-cbc", 24) \
  _(AES_128_CBC, "aes-128-cbc", 16) \
  _(AES_192_CBC, "aes-192-cbc", 24) \
  _(AES_256_CBC, "aes-256-cbc", 32) \
  _(AES_128_CTR, "aes-128-ctr", 16) \
  _(AES_192_CTR, "aes-192-ctr", 24) \
  _(AES_256_CTR, "aes-256-ctr", 32)

/* CRYPTO_ID, PRETTY_NAME, KEY_LENGTH_IN_BYTES */
#define foreach_crypto_aead_alg \
  _(AES_128_GCM, "aes-128-gcm", 16) \
  _(AES_192_GCM, "aes-192-gcm", 24) \
  _(AES_256_GCM, "aes-256-gcm", 32) \
  _(CHACHA20_POLY1305, "chacha20-poly1305", 32)

#define foreach_crypto_hash_alg                                               \
  _ (SHA1, "sha-1")                                                           \
  _ (SHA224, "sha-224")                                                       \
  _ (SHA256, "sha-256")                                                       \
  _ (SHA384, "sha-384")                                                       \
  _ (SHA512, "sha-512")

#define foreach_crypto_hmac_alg \
  _(MD5, "md5") \
  _(SHA1, "sha-1") \
  _(SHA224, "sha-224")  \
  _(SHA256, "sha-256")  \
  _(SHA384, "sha-384")  \
  _(SHA512, "sha-512")

#define foreach_crypto_op_type                                                \
  _ (ENCRYPT, "encrypt")                                                      \
  _ (DECRYPT, "decrypt")                                                      \
  _ (AEAD_ENCRYPT, "aead-encrypt")                                            \
  _ (AEAD_DECRYPT, "aead-decrypt")                                            \
  _ (HMAC, "hmac")                                                            \
  _ (HASH, "hash")

typedef enum
{
#define _(n, s) VNET_CRYPTO_OP_TYPE_##n,
  foreach_crypto_op_type
#undef _
    VNET_CRYPTO_OP_N_TYPES,
} vnet_crypto_op_type_t;

#define foreach_crypto_op_status \
  _(IDLE, "idle") \
  _(PENDING, "pending") \
  _(WORK_IN_PROGRESS, "work-in-progress") \
  _(COMPLETED, "completed") \
  _(FAIL_NO_HANDLER, "no-handler") \
  _(FAIL_BAD_HMAC, "bad-hmac") \
  _(FAIL_ENGINE_ERR, "engine-error")

/** async crypto **/

/* CRYPTO_ID, PRETTY_NAME, KEY_LENGTH_IN_BYTES, TAG_LEN, AAD_LEN */
#define foreach_crypto_aead_async_alg                                         \
  _ (AES_128_GCM, "aes-128-gcm-aad8", 16, 16, 8)                              \
  _ (AES_128_GCM, "aes-128-gcm-aad12", 16, 16, 12)                            \
  _ (AES_192_GCM, "aes-192-gcm-aad8", 24, 16, 8)                              \
  _ (AES_192_GCM, "aes-192-gcm-aad12", 24, 16, 12)                            \
  _ (AES_256_GCM, "aes-256-gcm-aad8", 32, 16, 8)                              \
  _ (AES_256_GCM, "aes-256-gcm-aad12", 32, 16, 12)                            \
  _ (CHACHA20_POLY1305, "chacha20-poly1305-aad8", 32, 16, 8)                  \
  _ (CHACHA20_POLY1305, "chacha20-poly1305-aad12", 32, 16, 12)                \
  _ (CHACHA20_POLY1305, "chacha20-poly1305", 32, 16, 0)

/* CRYPTO_ID, INTEG_ID, PRETTY_NAME, KEY_LENGTH_IN_BYTES, DIGEST_LEN */
#define foreach_crypto_link_async_alg                                         \
  _ (3DES_CBC, MD5, "3des-cbc-hmac-md5", 24, 12)                              \
  _ (AES_128_CBC, MD5, "aes-128-cbc-hmac-md5", 16, 12)                        \
  _ (AES_192_CBC, MD5, "aes-192-cbc-hmac-md5", 24, 12)                        \
  _ (AES_256_CBC, MD5, "aes-256-cbc-hmac-md5", 32, 12)                        \
  _ (3DES_CBC, SHA1, "3des-cbc-hmac-sha-1", 24, 12)                           \
  _ (AES_128_CBC, SHA1, "aes-128-cbc-hmac-sha-1", 16, 12)                     \
  _ (AES_192_CBC, SHA1, "aes-192-cbc-hmac-sha-1", 24, 12)                     \
  _ (AES_256_CBC, SHA1, "aes-256-cbc-hmac-sha-1", 32, 12)                     \
  _ (3DES_CBC, SHA224, "3des-cbc-hmac-sha-224", 24, 14)                       \
  _ (AES_128_CBC, SHA224, "aes-128-cbc-hmac-sha-224", 16, 14)                 \
  _ (AES_192_CBC, SHA224, "aes-192-cbc-hmac-sha-224", 24, 14)                 \
  _ (AES_256_CBC, SHA224, "aes-256-cbc-hmac-sha-224", 32, 14)                 \
  _ (3DES_CBC, SHA256, "3des-cbc-hmac-sha-256", 24, 16)                       \
  _ (AES_128_CBC, SHA256, "aes-128-cbc-hmac-sha-256", 16, 16)                 \
  _ (AES_192_CBC, SHA256, "aes-192-cbc-hmac-sha-256", 24, 16)                 \
  _ (AES_256_CBC, SHA256, "aes-256-cbc-hmac-sha-256", 32, 16)                 \
  _ (3DES_CBC, SHA384, "3des-cbc-hmac-sha-384", 24, 24)                       \
  _ (AES_128_CBC, SHA384, "aes-128-cbc-hmac-sha-384", 16, 24)                 \
  _ (AES_192_CBC, SHA384, "aes-192-cbc-hmac-sha-384", 24, 24)                 \
  _ (AES_256_CBC, SHA384, "aes-256-cbc-hmac-sha-384", 32, 24)                 \
  _ (3DES_CBC, SHA512, "3des-cbc-hmac-sha-512", 24, 32)                       \
  _ (AES_128_CBC, SHA512, "aes-128-cbc-hmac-sha-512", 16, 32)                 \
  _ (AES_192_CBC, SHA512, "aes-192-cbc-hmac-sha-512", 24, 32)                 \
  _ (AES_256_CBC, SHA512, "aes-256-cbc-hmac-sha-512", 32, 32)                 \
  _ (AES_128_CTR, SHA1, "aes-128-ctr-hmac-sha-1", 16, 12)                     \
  _ (AES_192_CTR, SHA1, "aes-192-ctr-hmac-sha-1", 24, 12)                     \
  _ (AES_256_CTR, SHA1, "aes-256-ctr-hmac-sha-1", 32, 12)

#define foreach_crypto_async_op_type \
  _(ENCRYPT, "async-encrypt") \
  _(DECRYPT, "async-decrypt")

typedef enum
{
  VNET_CRYPTO_KEY_OP_ADD,
  VNET_CRYPTO_KEY_OP_DEL,
  VNET_CRYPTO_KEY_OP_MODIFY,
} vnet_crypto_key_op_t;

typedef enum
{
#define _(n, s) VNET_CRYPTO_OP_STATUS_##n,
  foreach_crypto_op_status
#undef _
    VNET_CRYPTO_OP_N_STATUS,
} vnet_crypto_op_status_t;

/* *INDENT-OFF* */
typedef enum
{
  VNET_CRYPTO_ALG_NONE = 0,
#define _(n, s, l) VNET_CRYPTO_ALG_##n,
  foreach_crypto_cipher_alg foreach_crypto_aead_alg
#undef _
#define _(n, s) VNET_CRYPTO_ALG_HMAC_##n,
    foreach_crypto_hmac_alg
#undef _
#define _(n, s) VNET_CRYPTO_ALG_HASH_##n,
      foreach_crypto_hash_alg
#undef _
	VNET_CRYPTO_N_ALGS,
} vnet_crypto_alg_t;

typedef enum
{
#define _(n, s) VNET_CRYPTO_ASYNC_OP_TYPE_##n,
  foreach_crypto_async_op_type
#undef _
    VNET_CRYPTO_ASYNC_OP_N_TYPES,
} vnet_crypto_async_op_type_t;

typedef enum
{
  VNET_CRYPTO_ASYNC_ALG_NONE = 0,
#define _(n, s, k, t, a) \
  VNET_CRYPTO_ALG_##n##_TAG##t##_AAD##a,
  foreach_crypto_aead_async_alg
#undef _
#define _(c, h, s, k ,d) \
  VNET_CRYPTO_ALG_##c##_##h##_TAG##d,
  foreach_crypto_link_async_alg
#undef _
  VNET_CRYPTO_N_ASYNC_ALGS,
} vnet_crypto_async_alg_t;

typedef enum
{
  VNET_CRYPTO_ASYNC_OP_NONE = 0,
#define _(n, s, k, t, a) \
  VNET_CRYPTO_OP_##n##_TAG##t##_AAD##a##_ENC, \
  VNET_CRYPTO_OP_##n##_TAG##t##_AAD##a##_DEC,
  foreach_crypto_aead_async_alg
#undef _
#define _(c, h, s, k ,d) \
  VNET_CRYPTO_OP_##c##_##h##_TAG##d##_ENC, \
  VNET_CRYPTO_OP_##c##_##h##_TAG##d##_DEC,
  foreach_crypto_link_async_alg
#undef _
  VNET_CRYPTO_ASYNC_OP_N_IDS,
} vnet_crypto_async_op_id_t;

typedef struct
{
  union
  {
    struct
    {
      u8 *data;
      vnet_crypto_alg_t alg:8;
    };
    struct
    {
      u32 index_crypto;
      u32 index_integ;
      vnet_crypto_async_alg_t async_alg:8;
    };
  };
#define VNET_CRYPTO_KEY_TYPE_DATA 0
#define VNET_CRYPTO_KEY_TYPE_LINK 1
  u8 type;
} vnet_crypto_key_t;

typedef enum
{
  VNET_CRYPTO_OP_NONE = 0,
#define _(n, s, l) VNET_CRYPTO_OP_##n##_ENC, VNET_CRYPTO_OP_##n##_DEC,
  foreach_crypto_cipher_alg foreach_crypto_aead_alg
#undef _
#define _(n, s) VNET_CRYPTO_OP_##n##_HMAC,
    foreach_crypto_hmac_alg
#undef _
#define _(n, s) VNET_CRYPTO_OP_##n##_HASH,
      foreach_crypto_hash_alg
#undef _
	VNET_CRYPTO_N_OP_IDS,
} vnet_crypto_op_id_t;
/* *INDENT-ON* */

typedef enum
{
  CRYPTO_OP_SIMPLE,
  CRYPTO_OP_CHAINED,
  CRYPTO_OP_BOTH,
} crypto_op_class_type_t;

typedef struct
{
  char *name;
  vnet_crypto_op_id_t op_by_type[VNET_CRYPTO_OP_N_TYPES];
} vnet_crypto_alg_data_t;

typedef struct
{
  u8 *src;
  u8 *dst;
  u32 len;
} vnet_crypto_op_chunk_t;

typedef struct
{
  CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
  uword user_data;
  vnet_crypto_op_id_t op:16;
  vnet_crypto_op_status_t status:8;
  u8 flags;
#define VNET_CRYPTO_OP_FLAG_INIT_IV (1 << 0)
#define VNET_CRYPTO_OP_FLAG_HMAC_CHECK (1 << 1)
#define VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS (1 << 2)

  union
  {
    u8 digest_len;
    u8 tag_len;
  };
  u16 aad_len;

  union
  {
    struct
    {
      u8 *src;
      u8 *dst;
    };

    /* valid if VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS is set */
    u16 n_chunks;
  };

  union
  {
    u32 len;
    /* valid if VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS is set */
    u32 chunk_index;
  };

  u32 key_index;
  u8 *iv;
  u8 *aad;

  union
  {
    u8 *tag;
    u8 *digest;
  };
} vnet_crypto_op_t;

STATIC_ASSERT_SIZEOF (vnet_crypto_op_t, CLIB_CACHE_LINE_BYTES);

typedef struct
{
  vnet_crypto_op_type_t type;
  vnet_crypto_alg_t alg;
  u32 active_engine_index_simple;
  u32 active_engine_index_chained;
} vnet_crypto_op_data_t;

typedef struct
{
  vnet_crypto_async_op_type_t type;
  vnet_crypto_async_alg_t alg;
  u32 active_engine_index_async;
} vnet_crypto_async_op_data_t;

typedef struct
{
  char *name;
  vnet_crypto_async_op_id_t op_by_type[VNET_CRYPTO_ASYNC_OP_N_TYPES];
} vnet_crypto_async_alg_data_t;

typedef struct
{
  u8 *iv;
  union
  {
    u8 *digest;
    u8 *tag;
  };
  u8 *aad;
  u32 key_index;
  u32 crypto_total_length;
  i16 crypto_start_offset; /* first buffer offset */
  i16 integ_start_offset;
  /* adj total_length for integ, e.g.4 bytes for IPSec ESN */
  i16 integ_length_adj;
  vnet_crypto_op_status_t status : 8;
  u8 flags; /**< share same VNET_CRYPTO_OP_FLAG_* values */
} vnet_crypto_async_frame_elt_t;

/* Assert the size so the compiler will warn us when it changes */
STATIC_ASSERT_SIZEOF (vnet_crypto_async_frame_elt_t, 5 * sizeof (u64));

typedef enum vnet_crypto_async_frame_state_t_
{
  VNET_CRYPTO_FRAME_STATE_NOT_PROCESSED,
  /* frame waiting to be processed */
  VNET_CRYPTO_FRAME_STATE_PENDING,
  VNET_CRYPTO_FRAME_STATE_WORK_IN_PROGRESS,
  VNET_CRYPTO_FRAME_STATE_SUCCESS,
  VNET_CRYPTO_FRAME_STATE_ELT_ERROR
} __clib_packed vnet_crypto_async_frame_state_t;

typedef struct
{
  CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
  vnet_crypto_async_frame_state_t state;
  vnet_crypto_async_op_id_t op:8;
  u16 n_elts;
  vnet_crypto_async_frame_elt_t elts[VNET_CRYPTO_FRAME_SIZE];
  u32 buffer_indices[VNET_CRYPTO_FRAME_SIZE];
  u16 next_node_index[VNET_CRYPTO_FRAME_SIZE];
  u32 enqueue_thread_index;
} vnet_crypto_async_frame_t;

typedef struct
{
  CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
  vnet_crypto_async_frame_t *frame_pool;
  u32 *buffer_indices;
  u16 *nexts;
} vnet_crypto_thread_t;

typedef u32 vnet_crypto_key_index_t;

typedef u32 (vnet_crypto_chained_ops_handler_t) (vlib_main_t * vm,
						 vnet_crypto_op_t * ops[],
						 vnet_crypto_op_chunk_t *
						 chunks, u32 n_ops);

typedef u32 (vnet_crypto_ops_handler_t) (vlib_main_t * vm,
					 vnet_crypto_op_t * ops[], u32 n_ops);

typedef void (vnet_crypto_key_handler_t) (vlib_main_t * vm,
					  vnet_crypto_key_op_t kop,
					  vnet_crypto_key_index_t idx);

/** async crypto function handlers **/
typedef int
  (vnet_crypto_frame_enqueue_t) (vlib_main_t * vm,
				 vnet_crypto_async_frame_t * frame);
typedef vnet_crypto_async_frame_t *
  (vnet_crypto_frame_dequeue_t) (vlib_main_t * vm, u32 * nb_elts_processed,
				 u32 * enqueue_thread_idx);

u32
vnet_crypto_register_engine (vlib_main_t * vm, char *name, int prio,
			     char *desc);

void vnet_crypto_register_ops_handler (vlib_main_t * vm, u32 engine_index,
				       vnet_crypto_op_id_t opt,
				       vnet_crypto_ops_handler_t * oph);

void vnet_crypto_register_chained_ops_handler (vlib_main_t * vm,
					       u32 engine_index,
					       vnet_crypto_op_id_t opt,
					       vnet_crypto_chained_ops_handler_t
					       * oph);

void vnet_crypto_register_ops_handlers (vlib_main_t * vm, u32 engine_index,
					vnet_crypto_op_id_t opt,
					vnet_crypto_ops_handler_t * fn,
					vnet_crypto_chained_ops_handler_t *
					cfn);

void vnet_crypto_register_key_handler (vlib_main_t * vm, u32 engine_index,
				       vnet_crypto_key_handler_t * keyh);

/** async crypto register functions */
u32 vnet_crypto_register_post_node (vlib_main_t * vm, char *post_node_name);

void
vnet_crypto_register_enqueue_handler (vlib_main_t *vm, u32 engine_index,
				      vnet_crypto_async_op_id_t opt,
				      vnet_crypto_frame_enqueue_t *enq_fn);

void
vnet_crypto_register_dequeue_handler (vlib_main_t *vm, u32 engine_index,
				      vnet_crypto_frame_dequeue_t *deq_fn);

typedef struct
{
  char *name;
  char *desc;
  int priority;
  vnet_crypto_key_handler_t *key_op_handler;
  vnet_crypto_ops_handler_t *ops_handlers[VNET_CRYPTO_N_OP_IDS];
    vnet_crypto_chained_ops_handler_t
    * chained_ops_handlers[VNET_CRYPTO_N_OP_IDS];
  vnet_crypto_frame_enqueue_t *enqueue_handlers[VNET_CRYPTO_ASYNC_OP_N_IDS];
  vnet_crypto_frame_dequeue_t *dequeue_handler;
} vnet_crypto_engine_t;

typedef struct
{
  u32 node_idx;
  u32 next_idx;
} vnet_crypto_async_next_node_t;

typedef struct
{
  vnet_crypto_alg_data_t *algs;
  vnet_crypto_thread_t *threads;
  vnet_crypto_ops_handler_t **ops_handlers;
  vnet_crypto_chained_ops_handler_t **chained_ops_handlers;
  vnet_crypto_frame_enqueue_t **enqueue_handlers;
  vnet_crypto_frame_dequeue_t **dequeue_handlers;
  vnet_crypto_op_data_t opt_data[VNET_CRYPTO_N_OP_IDS];
  vnet_crypto_async_op_data_t async_opt_data[VNET_CRYPTO_ASYNC_OP_N_IDS];
  vnet_crypto_engine_t *engines;
  vnet_crypto_key_t *keys;
  uword *engine_index_by_name;
  uword *alg_index_by_name;
  uword *async_alg_index_by_name;
  vnet_crypto_async_alg_data_t *async_algs;
  u32 async_refcnt;
  vnet_crypto_async_next_node_t *next_nodes;
  u32 crypto_node_index;
#define VNET_CRYPTO_ASYNC_DISPATCH_POLLING 0
#define VNET_CRYPTO_ASYNC_DISPATCH_INTERRUPT 1
  u8 dispatch_mode;
} vnet_crypto_main_t;

extern vnet_crypto_main_t crypto_main;

u32 vnet_crypto_process_chained_ops (vlib_main_t * vm, vnet_crypto_op_t ops[],
				     vnet_crypto_op_chunk_t * chunks,
				     u32 n_ops);
u32 vnet_crypto_process_ops (vlib_main_t * vm, vnet_crypto_op_t ops[],
			     u32 n_ops);


int vnet_crypto_set_handler2 (char *ops_handler_name, char *engine,
			      crypto_op_class_type_t oct);
int vnet_crypto_is_set_handler (vnet_crypto_alg_t alg);

u32 vnet_crypto_key_add (vlib_main_t * vm, vnet_crypto_alg_t alg,
			 u8 * data, u16 length);
void vnet_crypto_key_del (vlib_main_t * vm, vnet_crypto_key_index_t index);

/**
 * Use 2 created keys to generate new key for linked algs (cipher + integ)
 * The returned key index is to be used for linked alg only.
 **/
u32 vnet_crypto_key_add_linked (vlib_main_t * vm,
				vnet_crypto_key_index_t index_crypto,
				vnet_crypto_key_index_t index_integ);

clib_error_t *crypto_dispatch_enable_disable (int is_enable);

int vnet_crypto_set_async_handler2 (char *alg_name, char *engine);

int vnet_crypto_is_set_async_handler (vnet_crypto_async_op_id_t opt);

void vnet_crypto_request_async_mode (int is_enable);

void vnet_crypto_set_async_dispatch_mode (u8 mode);

vnet_crypto_async_alg_t vnet_crypto_link_algs (vnet_crypto_alg_t crypto_alg,
					       vnet_crypto_alg_t integ_alg);

clib_error_t *crypto_dispatch_enable_disable (int is_enable);

format_function_t format_vnet_crypto_alg;
format_function_t format_vnet_crypto_engine;
format_function_t format_vnet_crypto_op;
format_function_t format_vnet_crypto_op_type;
format_function_t format_vnet_crypto_op_status;
unformat_function_t unformat_vnet_crypto_alg;

format_function_t format_vnet_crypto_async_op;
format_function_t format_vnet_crypto_async_alg;
format_function_t format_vnet_crypto_async_op_type;

static_always_inline void
vnet_crypto_op_init (vnet_crypto_op_t * op, vnet_crypto_op_id_t type)
{
  if (CLIB_DEBUG > 0)
    clib_memset (op, 0xfe, sizeof (*op));
  op->op = type;
  op->flags = 0;
  op->key_index = ~0;
  op->n_chunks = 0;
}

static_always_inline vnet_crypto_op_type_t
vnet_crypto_get_op_type (vnet_crypto_op_id_t id)
{
  vnet_crypto_main_t *cm = &crypto_main;
  ASSERT (id < VNET_CRYPTO_N_OP_IDS);
  vnet_crypto_op_data_t *od = cm->opt_data + id;
  return od->type;
}

static_always_inline vnet_crypto_key_t *
vnet_crypto_get_key (vnet_crypto_key_index_t index)
{
  vnet_crypto_main_t *cm = &crypto_main;
  return vec_elt_at_index (cm->keys, index);
}

static_always_inline int
vnet_crypto_set_handler (char *alg_name, char *engine)
{
  return vnet_crypto_set_handler2 (alg_name, engine, CRYPTO_OP_BOTH);
}

/** async crypto inline functions **/

static_always_inline vnet_crypto_async_frame_t *
vnet_crypto_async_get_frame (vlib_main_t * vm, vnet_crypto_async_op_id_t opt)
{
  vnet_crypto_main_t *cm = &crypto_main;
  vnet_crypto_thread_t *ct = cm->threads + vm->thread_index;
  vnet_crypto_async_frame_t *f = NULL;

  pool_get_aligned (ct->frame_pool, f, CLIB_CACHE_LINE_BYTES);
  if (CLIB_DEBUG > 0)
    clib_memset (f, 0xfe, sizeof (*f));
  f->state = VNET_CRYPTO_FRAME_STATE_NOT_PROCESSED;
  f->op = opt;
  f->n_elts = 0;

  return f;
}

static_always_inline void
vnet_crypto_async_free_frame (vlib_main_t * vm,
			      vnet_crypto_async_frame_t * frame)
{
  vnet_crypto_main_t *cm = &crypto_main;
  vnet_crypto_thread_t *ct = cm->threads + vm->thread_index;
  pool_put (ct->frame_pool, frame);
}

static_always_inline int
vnet_crypto_async_submit_open_frame (vlib_main_t * vm,
				     vnet_crypto_async_frame_t * frame)
{
  vnet_crypto_main_t *cm = &crypto_main;
  vlib_thread_main_t *tm = vlib_get_thread_main ();
  u32 i = vlib_num_workers () > 0;

  frame->state = VNET_CRYPTO_FRAME_STATE_PENDING;
  frame->enqueue_thread_index = vm->thread_index;

  if (PREDICT_FALSE (cm->enqueue_handlers == NULL))
    {
      frame->state = VNET_CRYPTO_FRAME_STATE_ELT_ERROR;
      return -1;
    }

  int ret = (cm->enqueue_handlers[frame->op]) (vm, frame);

  if (PREDICT_TRUE (ret == 0))
    {
      if (cm->dispatch_mode == VNET_CRYPTO_ASYNC_DISPATCH_INTERRUPT)
	{
	  for (; i < tm->n_vlib_mains; i++)
	    vlib_node_set_interrupt_pending (vlib_get_main_by_index (i),
					     cm->crypto_node_index);
	}
    }
  else
    {
      frame->state = VNET_CRYPTO_FRAME_STATE_ELT_ERROR;
    }

  return ret;
}

static_always_inline void
vnet_crypto_async_add_to_frame (vlib_main_t *vm, vnet_crypto_async_frame_t *f,
				u32 key_index, u32 crypto_len,
				i16 integ_len_adj, i16 crypto_start_offset,
				i16 integ_start_offset, u32 buffer_index,
				u16 next_node, u8 *iv, u8 *tag, u8 *aad,
				u8 flags)
{
  vnet_crypto_async_frame_elt_t *fe;
  u16 index;

  ASSERT (f->n_elts < VNET_CRYPTO_FRAME_SIZE);

  index = f->n_elts;
  fe = &f->elts[index];
  f->n_elts++;
  fe->key_index = key_index;
  fe->crypto_total_length = crypto_len;
  fe->crypto_start_offset = crypto_start_offset;
  fe->integ_start_offset = integ_start_offset;
  fe->integ_length_adj = integ_len_adj;
  fe->iv = iv;
  fe->tag = tag;
  fe->aad = aad;
  fe->flags = flags;
  f->buffer_indices[index] = buffer_index;
  f->next_node_index[index] = next_node;
}

static_always_inline void
vnet_crypto_async_reset_frame (vnet_crypto_async_frame_t * f)
{
  vnet_crypto_async_op_id_t opt;
  ASSERT (f != 0);
  ASSERT ((f->state == VNET_CRYPTO_FRAME_STATE_NOT_PROCESSED
	   || f->state == VNET_CRYPTO_FRAME_STATE_ELT_ERROR));
  opt = f->op;
  if (CLIB_DEBUG > 0)
    clib_memset (f, 0xfe, sizeof (*f));
  f->state = VNET_CRYPTO_FRAME_STATE_NOT_PROCESSED;
  f->op = opt;
  f->n_elts = 0;
}

static_always_inline u8
vnet_crypto_async_frame_is_full (const vnet_crypto_async_frame_t *f)
{
  return (f->n_elts == VNET_CRYPTO_FRAME_SIZE);
}

#endif /* included_vnet_crypto_crypto_h */

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */