aboutsummaryrefslogtreecommitdiffstats
path: root/src/plugins/nat/nat44-ei/nat44_ei.api
blob: 9ea1a3a1dde6acdb30be68b12aafc3f7e03d7b10 (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
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
/*
 * Copyright (c) 2020 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.
 */

option version = "1.1.1";
import "vnet/ip/ip_types.api";
import "vnet/interface_types.api";
import "plugins/nat/lib/nat_types.api";

enum nat44_ei_config_flags : u8
{
  NAT44_EI_NONE = 0x00,
  NAT44_EI_STATIC_MAPPING_ONLY = 0x01,
  NAT44_EI_CONNECTION_TRACKING = 0x02,
  NAT44_EI_OUT2IN_DPO = 0x04,
  NAT44_EI_ADDR_ONLY_MAPPING = 0x08,
  NAT44_EI_IF_INSIDE = 0x10,
  NAT44_EI_IF_OUTSIDE = 0x20,
  NAT44_EI_STATIC_MAPPING = 0x40,
};

/** \brief Enable/disable NAT44 plugin
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param inside_vrf - inside vrf id
    @param outside_vrf - outside vrf id
    @param users - maximum number of users per thread
    @param user_memory - overwrite hash allocation parameter
    @param sessions - maximum number of sessions per thread
    @param session_memory - overwrite hash allocation parameter
    @param user_sessions - maximum number of sessions per user
    @param enable - true if enable, false if disable
    @param flags - flag NAT44_EI_IS_STATIC_MAPPING_ONLY,
                        NAT44_EI_IS_CONNECTION_TRACKING,
                        NAT44_EI_IS_OUT2IN_DPO
*/
autoreply define nat44_ei_plugin_enable_disable {
  option in_progress;
  u32 client_index;
  u32 context;
  u32 inside_vrf;
  u32 outside_vrf;
  u32 users;
  u32 user_memory;
  u32 sessions;
  u32 session_memory;
  u32 user_sessions;
  bool enable;
  vl_api_nat44_ei_config_flags_t flags;
};

/** \brief Show NAT44 plugin running config
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
*/
define nat44_ei_show_running_config
{
  option in_progress;
  u32 client_index;
  u32 context;
};

/** \brief Show NAT44 plugin running config reply
    @param context - sender context, to match reply w/ request
    @param retval - return code for the request
    @param inside_vrf - default inside VRF id
    @param outside_vrf - outside VRF id
    @param users - maximum number of users per worker thread
    @param sessions - maximum number of sessions per worker thread
    @param user_sessions - maximum number of sessions per user
    @param user_buckets - number of user hash buckets
    @param translation_buckets - number of translation hash buckets
    @param flags - flag NAT44_EI_IS_STATIC_MAPPING_ONLY,
                        NAT44_EI_IS_CONNECTION_TRACKING,
                        NAT44_EI_IS_OUT2IN_DPO
*/
define nat44_ei_show_running_config_reply
{
  option in_progress;
  u32 context;
  i32 retval;
  u32 inside_vrf;
  u32 outside_vrf;
  u32 users;
  u32 sessions;
  u32 user_sessions;
  u32 user_buckets;
  u32 translation_buckets;
  bool forwarding_enabled;
  bool ipfix_logging_enabled;
  vl_api_nat_timeouts_t timeouts;
  vl_api_nat_log_level_t log_level;
  vl_api_nat44_ei_config_flags_t flags;
};

/** \brief Set NAT44 logging level
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param log_level - logging level
*/
autoreply define nat44_ei_set_log_level {
  option deprecated;
  u32 client_index;
  u32 context;
  vl_api_nat_log_level_t log_level;
};

/** \brief Set NAT workers
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param worker_mask - NAT workers mask
*/
autoreply define nat44_ei_set_workers {
  option in_progress;
  u32 client_index;
  u32 context;
  u64 worker_mask;
};

/** \brief Dump NAT workers
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
*/
define nat44_ei_worker_dump {
  option in_progress;
  u32 client_index;
  u32 context;
};

/** \brief NAT workers details response
    @param context - sender context, to match reply w/ request
    @param worker_index - worker index
    @param lcore_id - lcore ID
    @param name - worker name
*/
define nat44_ei_worker_details {
  option in_progress;
  u32 context;
  u32 worker_index;
  u32 lcore_id;
  string name[64];
};

/** \brief Enable/disable NAT IPFIX logging
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param domain_id - observation domain ID
    @param src_port - source port number
    @param enable - true if enable, false if disable
*/
autoreply define nat44_ei_ipfix_enable_disable {
  option in_progress;
  u32 client_index;
  u32 context;
  u32 domain_id;
  u16 src_port;
  bool enable;
};

/** \brief Set values of timeouts for NAT sessions (seconds)
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param udp - UDP timeout (default 300sec)
    @param tcp_established - TCP established timeout (default 7440sec)
    @param tcp_transitory - TCP transitory timeout (default 240sec)
    @param icmp - ICMP timeout (default 60sec)
*/
autoreply define nat44_ei_set_timeouts {
  option in_progress;
  u32 client_index;
  u32 context;
  u32 udp;
  u32 tcp_established;
  u32 tcp_transitory;
  u32 icmp;
};

/** \brief Set address and port assignment algorithm
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param alg - address and port assignment algorithm:
                 0 - default, 1 - MAP-E, 2 - port range
                 (see nat44_ei_addr_and_port_alloc_alg_t in nat.h)
    @param psid_offset - number of offset bits (valid only for MAP-E alg)
    @param psid_length - length of PSID (valid only for MAP-E alg)
    @param psid - Port Set Identifier (PSID) value (valid only for MAP-E alg)
    @param start_port - beginning of the port range
    @param end_port - end of the port range
*/
autoreply define nat44_ei_set_addr_and_port_alloc_alg {
  option in_progress;
  u32 client_index;
  u32 context;
  u8 alg;
  u8 psid_offset;
  u8 psid_length;
  u16 psid;
  u16 start_port;
  u16 end_port;
};

/** \brief Get address and port assignment algorithm
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
*/
define nat44_ei_get_addr_and_port_alloc_alg {
  option deprecated;
  u32 client_index;
  u32 context;
};

/** \brief Get address and port assignment algorithm reply
    @param context - sender context, to match reply w/ request
    @param retval - return code
    @param alg - address and port assignment algorithm:
                 0 - default, 1 - MAP-E, 2 - port range
                 (see nat44_ei_addr_and_port_alloc_alg_t in nat.h)
    @param psid_offset - number of offset bits (valid only for MAP-E alg)
    @param psid_length - length of PSID (valid only for MAP-E alg)
    @param psid - Port Set Identifier (PSID) value (valid only for MAP-E alg)
    @param start_port - beginning of the port range
    @param end_port - end of the port range
*/
define nat44_ei_get_addr_and_port_alloc_alg_reply {
  option deprecated;
  u32 context;
  i32 retval;
  u8 alg;
  u8 psid_offset;
  u8 psid_length;
  u16 psid;
  u16 start_port;
  u16 end_port;
};

/** \brief Set TCP MSS rewriting configuration
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param mss_value - MSS value to be used for MSS rewriting
    @param enable - if true enable MSS rewriting feature else disable
*/
autoreply define nat44_ei_set_mss_clamping {
  option in_progress;
  u32 client_index;
  u32 context;
  u16 mss_value;
  bool enable;
};

/** \brief Get TCP MSS rewriting configuration
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
*/
define nat44_ei_get_mss_clamping {
  option deprecated;
  u32 client_index;
  u32 context;
};

/** \brief Get TCP MSS rewriting configuration reply
    @param context - sender context, to match reply w/ request
    @param retval - return code
    @param mss_value - MSS value to be used for MSS rewriting
    @param enable - if true enable MSS rewriting feature else disable
*/
define nat44_ei_get_mss_clamping_reply {
  option deprecated;
  u32 context;
  i32 retval;
  u16 mss_value;
  bool enable;
};

/** \brief Set HA listener (local settings)
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param ip_address - local IP4 address
    @param port - local UDP port number
    @param path_mtu - path MTU between local and failover
*/
autoreply define nat44_ei_ha_set_listener {
  option in_progress;
  u32 client_index;
  u32 context;
  vl_api_ip4_address_t ip_address;
  u16 port;
  u32 path_mtu;
};

/** \brief Set HA failover (remote settings)
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param ip_address - failover IP4 address
    @param port - failvoer UDP port number
    @param session_refresh_interval - number of seconds after which to send
                                      session counters refresh
*/
autoreply define nat44_ei_ha_set_failover {
  option in_progress;
  u32 client_index;
  u32 context;
  vl_api_ip4_address_t ip_address;
  u16 port;
  u32 session_refresh_interval;
};

/** \brief Get HA listener/local configuration
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
*/
define nat44_ei_ha_get_listener {
  option deprecated;
  u32 client_index;
  u32 context;
};

/** \brief Get HA listener/local configuration reply
    @param context - sender context, to match reply w/ request
    @param retval - return code
    @param ip_address - local IP4 address
    @param port - local UDP port number
    @param path_mtu - Path MTU between local and failover
*/
define nat44_ei_ha_get_listener_reply {
  option deprecated;
  u32 context;
  i32 retval;
  vl_api_ip4_address_t ip_address;
  u16 port;
  u32 path_mtu;
};

/** \brief Get HA failover/remote settings
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
*/
define nat44_ei_ha_get_failover {
  option deprecated;
  u32 client_index;
  u32 context;
};

/** \brief Get HA failover/remote settings reply
    @param context - sender context, to match reply w/ request
    @param retval - return code
    @param ip_address - failover IP4 address
    @param port - failvoer UDP port number
    @param session_refresh_interval - number of seconds after which to send
                                      session counters refresh
*/
define nat44_ei_ha_get_failover_reply {
  option deprecated;
  u32 context;
  i32 retval;
  vl_api_ip4_address_t ip_address;
  u16 port;
  u32 session_refresh_interval;
};

/** \brief Flush the current HA data (for testing)
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
*/
autoreply define nat44_ei_ha_flush {
  option in_progress;
  u32 client_index;
  u32 context;
};

/** \brief Resync HA (resend existing sessions to new failover)
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param want_resync_event - resync completed event sent to the sender via
                               nat44_ei_ha_resync_completed_event API message if
                               non-zero
    @param pid - sender's pid
*/
autoreply define nat44_ei_ha_resync
{
  option in_progress;
  u32 client_index;
  u32 context;
  u8 want_resync_event;
  u32 pid;
};

/** \brief Tell client about a HA resync completion event
    @param client_index - opaque cookie to identify the sender
    @param pid - client pid registered to receive notification
    @param missed_count - number of missed (not ACKed) messages
*/
define nat44_ei_ha_resync_completed_event
{
  option in_progress;
  u32 client_index;
  u32 pid;
  u32 missed_count;
};

service {
  rpc nat44_ei_ha_resync returns nat44_ei_ha_resync_reply events nat44_ei_ha_resync_completed_event;
};

/** \brief Del NAT44 user
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param ip_address - IPv4 address
    @param fib_index - FIB index
*/
autoreply define nat44_ei_del_user {
  option in_progress;
  u32 client_index;
  u32 context;
  vl_api_ip4_address_t ip_address;
  u32 fib_index;
};

/** \brief Add/del NAT44 address range
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param first_ip_address - first IPv4 address
    @param last_ip_address - last IPv4 address
    @param vrf_id - VRF id of tenant, ~0 means independent of VRF
    @param is_add - true if add, false if delete

*/
autoreply define nat44_ei_add_del_address_range {
  option in_progress;
  u32 client_index;
  u32 context;
  vl_api_ip4_address_t first_ip_address;
  vl_api_ip4_address_t last_ip_address;
  u32 vrf_id;
  bool is_add;
};

/** \brief Dump NAT44 addresses
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
*/
define nat44_ei_address_dump {
  option in_progress;
  u32 client_index;
  u32 context;
};

/** \brief NAT44 address details response
    @param context - sender context, to match reply w/ request
    @param ip_address - IPv4 address
    @param vrf_id - VRF id of tenant, ~0 means independent of VRF
*/
define nat44_ei_address_details {
  option in_progress;
  u32 context;
  vl_api_ip4_address_t ip_address;
  u32 vrf_id;
};

/** \brief Enable/disable NAT44 feature on the interface
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param is_add - true if add, false if delete
    @param flags - flag NAT_IS_INSIDE if interface is inside else
                   interface is outside
    @param sw_if_index - software index of the interface
*/
autoreply define nat44_ei_interface_add_del_feature {
  option in_progress;
  u32 client_index;
  u32 context;
  bool is_add;
  vl_api_nat44_ei_config_flags_t flags;
  vl_api_interface_index_t sw_if_index;
};

/** \brief Dump interfaces with NAT44 feature
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
*/
define nat44_ei_interface_dump {
  option in_progress;
  u32 client_index;
  u32 context;
};

/** \brief NAT44 interface details response
    @param context - sender context, to match reply w/ request
    @param sw_if_index - software index of the interface
    @param flags - flag NAT_IS_INSIDE if interface is inside,
                   flag NAT_IS_OUTSIDE if interface is outside
                   and if both flags are set the interface is
                   both inside and outside
*/
define nat44_ei_interface_details {
  option in_progress;
  u32 context;
  vl_api_nat44_ei_config_flags_t flags;
  vl_api_interface_index_t sw_if_index;
};

/** \brief Enable/disbale NAT44 as an interface output feature (postrouting
           in2out translation)
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param is_add - true if add, false if delete
    @param flags - flag NAT_IS_INSIDE if interface is inside else
                   interface is outside
    @param sw_if_index - software index of the interface
*/
autoreply define nat44_ei_interface_add_del_output_feature {
  option deprecated;
  u32 client_index;
  u32 context;
  bool is_add;
  vl_api_nat44_ei_config_flags_t flags;
  vl_api_interface_index_t sw_if_index;
};

/** \brief Dump interfaces with NAT44 output feature
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
*/
define nat44_ei_interface_output_feature_dump {
  option deprecated;
  u32 client_index;
  u32 context;
};

/** \brief NAT44 interface with output feature details response
    @param context - sender context, to match reply w/ request
    @param flags - flag NAT_IS_INSIDE if interface is inside else
                   interface is outside
    @param sw_if_index - software index of the interface
*/
define nat44_ei_interface_output_feature_details {
  option deprecated;
  u32 context;
  vl_api_nat44_ei_config_flags_t flags;
  vl_api_interface_index_t sw_if_index;
};

/** \brief Add/delete NAT44 static mapping
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param is_add - true if add, false if delete
    @param flags - flag NAT44_EI_IS_ADDR_ONLY if address only mapping
    @param local_ip_address - local IPv4 address
    @param external_ip_address - external IPv4 address
    @param protocol - IP protocol, used only if addr_only=0
    @param local_port - local port number, used only if addr_only=0
    @param external_port - external port number, used only if addr_only=0
    @param external_sw_if_index - external interface (if set
                                  external_ip_address is ignored, ~0 means not
                                  used)
    @param vfr_id - VRF ID
    @param tag - opaque string tag
*/
autoreply define nat44_ei_add_del_static_mapping {
  option in_progress;
  u32 client_index;
  u32 context;
  bool is_add;
  vl_api_nat44_ei_config_flags_t flags;
  vl_api_ip4_address_t local_ip_address;
  vl_api_ip4_address_t external_ip_address;
  u8 protocol;
  u16 local_port;
  u16 external_port;
  vl_api_interface_index_t external_sw_if_index;
  u32 vrf_id;
  string tag[64];
};

/** \brief Dump NAT44 static mappings
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
*/
define nat44_ei_static_mapping_dump {
  option in_progress;
  u32 client_index;
  u32 context;
};

/** \brief NAT44 static mapping details response
    @param context - sender context, to match reply w/ request
    @param flags - flag NAT44_EI_IS_ADDR_ONLY if address only mapping,
    @param local_ip_address - local IPv4 address
    @param external_ip_address - external IPv4 address
    @param protocol - IP protocol, valid only if no NAT_ADDR_ONLY flag
    @param local_port - local port number, valid only if no NAT_ADDR_ONLY flag
    @param external_port - external port number, valid only if no NAT_ADDR_ONLY flag
    @param external_sw_if_index - external interface
    @param vfr_id - VRF ID
    @param tag - opaque string tag
*/
define nat44_ei_static_mapping_details {
  option in_progress;
  u32 context;
  vl_api_nat44_ei_config_flags_t flags;
  vl_api_ip4_address_t local_ip_address;
  vl_api_ip4_address_t external_ip_address;
  u8 protocol;
  u16 local_port;
  u16 external_port;
  vl_api_interface_index_t external_sw_if_index;
  u32 vrf_id;
  string tag[64];
};

/** \brief Add/delete NAT44 identity mapping
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param is_add - true if add, false if delete
    @param flags - flag NAT44_EI_IS_ADDR_ONLY if address only mapping
    @param ip_address - IPv4 address
    @param protocol - IP protocol
    @param port - port number
    @param sw_if_index - interface (if set ip_address is ignored, ~0 means not
                                    used)
    @param vfr_id - VRF ID (if ~0 use default VRF)
    @param tag - opaque string tag
*/
autoreply define nat44_ei_add_del_identity_mapping {
  option deprecated;
  u32 client_index;
  u32 context;
  bool is_add;
  vl_api_nat44_ei_config_flags_t flags;
  vl_api_ip4_address_t ip_address;
  u8 protocol;
  u16 port;
  vl_api_interface_index_t sw_if_index;
  u32 vrf_id;
  string tag[64];
};

/** \brief Dump NAT44 identity mappings
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
*/
define nat44_ei_identity_mapping_dump {
  option deprecated;
  u32 client_index;
  u32 context;
};

/** \brief NAT44 identity mapping details response
    @param context - sender context, to match reply w/ request
    @param flags - flag NAT44_EI_ADDR_ONLY if address only mapping
    @param ip_address - IPv4 address
    @param protocol - IP protocol
    @param port - port number
    @param sw_if_index - interface
    @param vfr_id - VRF ID
    @param tag - opaque string tag
*/
define nat44_ei_identity_mapping_details {
  option deprecated;
  u32 context;
  vl_api_nat44_ei_config_flags_t flags;
  vl_api_ip4_address_t ip_address;
  u8 protocol;
  u16 port;
  vl_api_interface_index_t sw_if_index;
  u32 vrf_id;
  string tag[64];
};

/** \brief Add/delete NAT44 pool address from specific interfce
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param is_add - true if add, false if delete
    @param sw_if_index - software index of the interface
    @param flags - flag NAT_TWICE_NAT if NAT address range for external hosts
*/
autoreply define nat44_ei_add_del_interface_addr {
  option deprecated;
  u32 client_index;
  u32 context;
  bool is_add;
  vl_api_interface_index_t sw_if_index;
  vl_api_nat44_ei_config_flags_t flags;
};

/** \brief Dump NAT44 pool addresses interfaces
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
*/
define nat44_ei_interface_addr_dump {
  option deprecated;
  u32 client_index;
  u32 context;
};

/** \brief NAT44 pool addresses interfaces details response
    @param context - sender context, to match reply w/ request
    @param sw_if_index - software index of the interface

*/
define nat44_ei_interface_addr_details {
  option deprecated;
  u32 context;
  vl_api_interface_index_t sw_if_index;
};

/** \brief Dump NAT44 users
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
*/
define nat44_ei_user_dump {
  option in_progress;
  u32 client_index;
  u32 context;
};

/** \brief NAT44 users response
    @param context - sender context, to match reply w/ request
    @vrf_id - VRF ID
    @param ip_address - IPv4 address
    @param nsessions - number of dynamic sessions
    @param nstaticsessions - number of static sessions
*/
define nat44_ei_user_details {
  option in_progress;
  u32 context;
  u32 vrf_id;
  vl_api_ip4_address_t ip_address;
  u32 nsessions;
  u32 nstaticsessions;
};

/** \brief NAT44 user's sessions
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param ip_address - IPv4 address of the user to dump
    @param vrf_id - VRF_ID
*/
define nat44_ei_user_session_dump {
  option in_progress;
  u32 client_index;
  u32 context;
  vl_api_ip4_address_t ip_address;
  u32 vrf_id;
};

/** \brief NAT44 user's sessions response
    @param context - sender context, to match reply w/ request
    @param outside_ip_address - outside IPv4 address
    @param outside_port - outside port
    @param inside_ip_address - inside IPv4 address
    @param inside_port - inside port
    @param protocol - protocol
    @param flags - flag NAT_IS_STATIC if session is static
    @param last_heard - last heard timer
    @param total_bytes - count of bytes sent through session
    @param total_pkts - count of pakets sent through session
    @param ext_host_address - external host IPv4 address
    @param ext_host_port - external host port
*/
define nat44_ei_user_session_details {
  option in_progress;
  u32 context;
  vl_api_ip4_address_t outside_ip_address;
  u16 outside_port;
  vl_api_ip4_address_t inside_ip_address;
  u16 inside_port;
  u16 protocol;
  vl_api_nat44_ei_config_flags_t flags;
  u64 last_heard;
  u64 total_bytes;
  u32 total_pkts;
  vl_api_ip4_address_t ext_host_address;
  u16 ext_host_port;
};

/** \brief Delete NAT44 session
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param ip_address - IPv4 address
    @param protocol - IP protocol
    @param port - port number
    @param vfr_id - VRF ID
    @param flags - flag NAT_IS_INSIDE if interface is inside or
                   interface is outside,
                   flag NAT_IS_EXT_HOST_VALID if external host address and
                   port are valid
    @param ext_host_address - external host IPv4 address
    @param ext_host_port - external host port
*/
autoreply define nat44_ei_del_session {
  option in_progress;
  u32 client_index;
  u32 context;
  vl_api_ip4_address_t address;
  u8 protocol;
  u16 port;
  u32 vrf_id;
  vl_api_nat44_ei_config_flags_t flags;
  vl_api_ip4_address_t ext_host_address;
  u16 ext_host_port;
};

/** \brief Enable/disable forwarding for NAT44
    Forward packets which don't match existing translation
    or static mapping instead of dropping them.
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param enable - true for enable, false for disable
*/
autoreply define nat44_ei_forwarding_enable_disable {
  option in_progress;
  u32 client_index;
  u32 context;
  bool enable;
};

/** \brief Set NAT handoff frame queue options
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
    @param frame_queue_nelts - number of worker handoff frame queue elements
*/
autoreply define nat44_ei_set_fq_options {
  option in_progress;
  u32 client_index;
  u32 context;
  u32 frame_queue_nelts;
};

/** \brief Show NAT handoff frame queue options
    @param client_index - opaque cookie to identify the sender
    @param context - sender context, to match reply w/ request
*/
define nat44_ei_show_fq_options
{
  option in_progress;
  u32 client_index;
  u32 context;
};

/** \brief Show NAT handoff frame queue options reply
    @param context - sender context, to match reply w/ request
    @param retval - return code for the request
    @param frame_queue_nelts - number of worker handoff frame queue elements
*/
define nat44_ei_show_fq_options_reply
{
  option in_progress;
  u32 context;
  i32 retval;
  u32 frame_queue_nelts;
};