aboutsummaryrefslogtreecommitdiffstats
path: root/src/vnet/bonding/cli.c
blob: 901032e7c4ce55fe78e9d38727fa4cab12f5f6a0 (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
/*
 *------------------------------------------------------------------
 * Copyright (c) 2017 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.
 *------------------------------------------------------------------
 */

#include <stdint.h>
#include <vlib/vlib.h>
#include <vlib/unix/unix.h>
#include <vnet/ethernet/ethernet.h>
#include <vnet/bonding/node.h>

void
bond_disable_collecting_distributing (vlib_main_t * vm, slave_if_t * sif)
{
  bond_if_t *bif;
  int i;
  uword p;

  bif = bond_get_master_by_dev_instance (sif->bif_dev_instance);
  clib_spinlock_lock_if_init (&bif->lockp);
  vec_foreach_index (i, bif->active_slaves)
  {
    p = *vec_elt_at_index (bif->active_slaves, i);
    if (p == sif->sw_if_index)
      {
	vec_del1 (bif->active_slaves, i);
	hash_unset (bif->active_slave_by_sw_if_index, sif->sw_if_index);
	break;
      }
  }
  clib_spinlock_unlock_if_init (&bif->lockp);
}

void
bond_enable_collecting_distributing (vlib_main_t * vm, slave_if_t * sif)
{
  bond_if_t *bif;

  bif = bond_get_master_by_dev_instance (sif->bif_dev_instance);
  clib_spinlock_lock_if_init (&bif->lockp);
  if (!hash_get (bif->active_slave_by_sw_if_index, sif->sw_if_index))
    {
      hash_set (bif->active_slave_by_sw_if_index, sif->sw_if_index,
		sif->sw_if_index);
      vec_add1 (bif->active_slaves, sif->sw_if_index);
    }
  clib_spinlock_unlock_if_init (&bif->lockp);
}

int
bond_dump_ifs (bond_interface_details_t ** out_bondifs)
{
  vnet_main_t *vnm = vnet_get_main ();
  bond_main_t *bm = &bond_main;
  bond_if_t *bif;
  vnet_hw_interface_t *hi;
  bond_interface_details_t *r_bondifs = NULL;
  bond_interface_details_t *bondif = NULL;

  /* *INDENT-OFF* */
  pool_foreach (bif, bm->interfaces,
    vec_add2(r_bondifs, bondif, 1);
    memset (bondif, 0, sizeof (*bondif));
    bondif->sw_if_index = bif->sw_if_index;
    hi = vnet_get_hw_interface (vnm, bif->hw_if_index);
    clib_memcpy(bondif->interface_name, hi->name,
                MIN (ARRAY_LEN (bondif->interface_name) - 1,
                     strlen ((const char *) hi->name)));
    bondif->mode = bif->mode;
    bondif->lb = bif->lb;
    bondif->active_slaves = vec_len (bif->active_slaves);
    bondif->slaves = vec_len (bif->slaves);
  );
  /* *INDENT-ON* */

  *out_bondifs = r_bondifs;

  return 0;
}

int
bond_dump_slave_ifs (slave_interface_details_t ** out_slaveifs,
		     u32 bond_sw_if_index)
{
  vnet_main_t *vnm = vnet_get_main ();
  bond_if_t *bif;
  vnet_hw_interface_t *hi;
  vnet_sw_interface_t *sw;
  slave_interface_details_t *r_slaveifs = NULL;
  slave_interface_details_t *slaveif = NULL;
  u32 *sw_if_index = NULL;
  slave_if_t *sif;

  bif = bond_get_master_by_sw_if_index (bond_sw_if_index);
  if (!bif)
    return 1;

  vec_foreach (sw_if_index, bif->slaves)
  {
    vec_add2 (r_slaveifs, slaveif, 1);
    memset (slaveif, 0, sizeof (*slaveif));
    sif = bond_get_slave_by_sw_if_index (*sw_if_index);
    if (sif)
      {
	sw = vnet_get_sw_interface (vnm, sif->sw_if_index);
	hi = vnet_get_hw_interface (vnm, sw->hw_if_index);
	clib_memcpy (slaveif->interface_name, hi->name,
		     MIN (ARRAY_LEN (slaveif->interface_name) - 1,
			  strlen ((const char *) hi->name)));
	slaveif->sw_if_index = sif->sw_if_index;
	slaveif->is_passive = sif->is_passive;
	slaveif->is_long_timeout = sif->is_long_timeout;
      }
  }
  *out_slaveifs = r_slaveifs;

  return 0;
}

static void
bond_delete_neighbor (vlib_main_t * vm, bond_if_t * bif, slave_if_t * sif)
{
  bond_main_t *bm = &bond_main;
  vnet_main_t *vnm = vnet_get_main ();
  int i;
  vnet_hw_interface_t *hw;

  bif->port_number_bitmap =
    clib_bitmap_set (bif->port_number_bitmap,
		     ntohs (sif->actor_admin.port_number) - 1, 0);
  hash_unset (bm->neighbor_by_sw_if_index, sif->sw_if_index);
  vec_free (sif->last_marker_pkt);
  vec_free (sif->last_rx_pkt);
  vec_foreach_index (i, bif->slaves)
  {
    uword p = *vec_elt_at_index (bif->slaves, i);
    if (p == sif->sw_if_index)
      {
	vec_del1 (bif->slaves, i);
	break;
      }
  }

  bond_disable_collecting_distributing (vm, sif);

  /* Put back the old mac */
  hw = vnet_get_sup_hw_interface (vnm, sif->sw_if_index);
  vnet_hw_interface_change_mac_address (vnm, hw->hw_if_index,
					sif->persistent_hw_address);

  pool_put (bm->neighbors, sif);

  if ((bif->mode == BOND_MODE_LACP) && bm->lacp_enable_disable)
    (*bm->lacp_enable_disable) (vm, bif, sif, 0);
}

int
bond_delete_if (vlib_main_t * vm, u32 sw_if_index)
{
  bond_main_t *bm = &bond_main;
  vnet_main_t *vnm = vnet_get_main ();
  bond_if_t *bif;
  slave_if_t *sif;
  vnet_hw_interface_t *hw;
  u32 *sif_sw_if_index;
  u32 thread_index;

  hw = vnet_get_sup_hw_interface (vnm, sw_if_index);
  if (hw == NULL || bond_dev_class.index != hw->dev_class_index)
    return VNET_API_ERROR_INVALID_SW_IF_INDEX;

  bif = bond_get_master_by_dev_instance (hw->dev_instance);

  vec_foreach (sif_sw_if_index, bif->slaves)
  {
    sif = bond_get_slave_by_sw_if_index (*sif_sw_if_index);
    if (sif)
      bond_delete_neighbor (vm, bif, sif);
  }

  /* bring down the interface */
  vnet_hw_interface_set_flags (vnm, bif->hw_if_index, 0);
  vnet_sw_interface_set_flags (vnm, bif->sw_if_index, 0);

  ethernet_delete_interface (vnm, bif->hw_if_index);

  clib_bitmap_free (bif->port_number_bitmap);
  hash_unset (bm->bond_by_sw_if_index, bif->sw_if_index);
  for (thread_index = 0; thread_index < vlib_get_thread_main ()->n_vlib_mains;
       thread_index++)
    {
      vec_free (bif->per_thread_info[thread_index].frame);
    }
  vec_free (bif->per_thread_info);
  memset (bif, 0, sizeof (*bif));
  pool_put (bm->interfaces, bif);

  return 0;
}

void
bond_create_if (vlib_main_t * vm, bond_create_if_args_t * args)
{
  bond_main_t *bm = &bond_main;
  vnet_main_t *vnm = vnet_get_main ();
  vnet_sw_interface_t *sw;
  bond_if_t *bif;

  if ((args->mode == BOND_MODE_LACP) && bm->lacp_plugin_loaded == 0)
    {
      args->rv = VNET_API_ERROR_FEATURE_DISABLED;
      args->error = clib_error_return (0, "LACP plugin is not loaded");
      return;
    }
  if (args->mode > BOND_MODE_LACP || args->mode < BOND_MODE_ROUND_ROBIN)
    {
      args->rv = VNET_API_ERROR_INVALID_ARGUMENT;
      args->error = clib_error_return (0, "Invalid mode");
      return;
    }
  if (args->lb > BOND_LB_L23)
    {
      args->rv = VNET_API_ERROR_INVALID_ARGUMENT;
      args->error = clib_error_return (0, "Invalid load-balance");
      return;
    }
  pool_get (bm->interfaces, bif);
  memset (bif, 0, sizeof (*bif));
  bif->dev_instance = bif - bm->interfaces;
  bif->lb = args->lb;
  bif->mode = args->mode;

  // Special load-balance mode used for rr and bc
  if (bif->mode == BOND_MODE_ROUND_ROBIN)
    bif->lb = BOND_LB_RR;
  else if (bif->mode == BOND_MODE_BROADCAST)
    bif->lb = BOND_LB_BC;

  bif->use_custom_mac = args->hw_addr_set;
  if (!args->hw_addr_set)
    {
      f64 now = vlib_time_now (vm);
      u32 rnd;
      rnd = (u32) (now * 1e6);
      rnd = random_u32 (&rnd);

      memcpy (args->hw_addr + 2, &rnd, sizeof (rnd));
      args->hw_addr[0] = 2;
      args->hw_addr[1] = 0xfe;
    }
  memcpy (bif->hw_address, args->hw_addr, 6);
  args->error = ethernet_register_interface
    (vnm, bond_dev_class.index, bif - bm->interfaces /* device instance */ ,
     bif->hw_address /* ethernet address */ ,
     &bif->hw_if_index, 0 /* flag change */ );

  if (args->error)
    {
      args->rv = VNET_API_ERROR_INVALID_REGISTRATION;
      pool_put (bm->interfaces, bif);
      return;
    }

  sw = vnet_get_hw_sw_interface (vnm, bif->hw_if_index);
  bif->sw_if_index = sw->sw_if_index;
  bif->group = bif->sw_if_index;
  vec_validate_aligned (bif->per_thread_info,
			vlib_get_thread_main ()->n_vlib_mains - 1,
			CLIB_CACHE_LINE_BYTES);
  if (vlib_get_thread_main ()->n_vlib_mains > 1)
    clib_spinlock_init (&bif->lockp);

  vnet_hw_interface_set_flags (vnm, bif->hw_if_index,
			       VNET_HW_INTERFACE_FLAG_LINK_UP);

  hash_set (bm->bond_by_sw_if_index, bif->sw_if_index, bif->dev_instance);

  // for return
  args->sw_if_index = bif->sw_if_index;
}

static clib_error_t *
bond_create_command_fn (vlib_main_t * vm, unformat_input_t * input,
			vlib_cli_command_t * cmd)
{
  unformat_input_t _line_input, *line_input = &_line_input;
  bond_create_if_args_t args = { 0 };
  u8 mode_is_set = 0;

  /* Get a line of input. */
  if (!unformat_user (input, unformat_line_input, line_input))
    return clib_error_return (0, "Missing required arguments.");

  args.mode = -1;
  args.lb = BOND_LB_L2;
  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
    {
      if (unformat (line_input, "mode %U", unformat_bond_mode, &args.mode))
	mode_is_set = 1;
      else if (((args.mode == BOND_MODE_LACP) || (args.mode == BOND_MODE_XOR))
	       && unformat (line_input, "load-balance %U",
			    unformat_bond_load_balance, &args.lb))
	;
      else if (unformat (line_input, "hw-addr %U",
			 unformat_ethernet_address, args.hw_addr))
	args.hw_addr_set = 1;
      else
	return clib_error_return (0, "unknown input `%U'",
				  format_unformat_error, input);
    }
  unformat_free (line_input);

  if (mode_is_set == 0)
    return clib_error_return (0, "Missing bond mode");

  bond_create_if (vm, &args);

  return args.error;
}

/* *INDENT-OFF* */
VLIB_CLI_COMMAND (bond_create_command, static) = {
  .path = "create bond",
  .short_help = "create bond mode {round-robin | active-backup | broadcast | "
    "{lacp | xor} [load-balance { l2 | l23 | l34 }]} [hw-addr <mac-address>]",
  .function = bond_create_command_fn,
};
/* *INDENT-ON* */

static clib_error_t *
bond_delete_command_fn (vlib_main_t * vm, unformat_input_t * input,
			vlib_cli_command_t * cmd)
{
  unformat_input_t _line_input, *line_input = &_line_input;
  u32 sw_if_index = ~0;
  vnet_main_t *vnm = vnet_get_main ();
  int rv;

  /* Get a line of input. */
  if (!unformat_user (input, unformat_line_input, line_input))
    return clib_error_return (0, "Missing <interface>");

  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
    {
      if (unformat (line_input, "sw_if_index %d", &sw_if_index))
	;
      else if (unformat (line_input, "%U", unformat_vnet_sw_interface,
			 vnm, &sw_if_index))
	;
      else
	return clib_error_return (0, "unknown input `%U'",
				  format_unformat_error, input);
    }
  unformat_free (line_input);

  if (sw_if_index == ~0)
    return clib_error_return (0,
			      "please specify interface name or sw_if_index");

  rv = bond_delete_if (vm, sw_if_index);
  if (rv == VNET_API_ERROR_INVALID_SW_IF_INDEX)
    return clib_error_return (0, "not a bond interface");
  else if (rv != 0)
    return clib_error_return (0, "error on deleting bond interface");

  return 0;
}

/* *INDENT-OFF* */
VLIB_CLI_COMMAND (bond_delete__command, static) =
{
  .path = "delete bond",
  .short_help = "delete bond {<interface> | sw_if_index <sw_idx>}",
  .function = bond_delete_command_fn,
};
/* *INDENT-ON* */

void
bond_enslave (vlib_main_t * vm, bond_enslave_args_t * args)
{
  bond_main_t *bm = &bond_main;
  vnet_main_t *vnm = vnet_get_main ();
  bond_if_t *bif;
  slave_if_t *sif;
  vnet_interface_main_t *im = &vnm->interface_main;
  vnet_hw_interface_t *hw, *hw2;
  vnet_sw_interface_t *sw;

  bif = bond_get_master_by_sw_if_index (args->group);
  if (!bif)
    {
      args->rv = VNET_API_ERROR_INVALID_INTERFACE;
      args->error = clib_error_return (0, "bond interface not found");
      return;
    }
  // make sure the interface is not already enslaved
  if (bond_get_slave_by_sw_if_index (args->slave))
    {
      args->rv = VNET_API_ERROR_VALUE_EXIST;
      args->error = clib_error_return (0, "interface was already enslaved");
      return;
    }
  hw = vnet_get_sup_hw_interface (vnm, args->slave);
  if (hw->dev_class_index == bond_dev_class.index)
    {
      args->rv = VNET_API_ERROR_INVALID_INTERFACE;
      args->error =
	clib_error_return (0, "bond interface cannot be enslaved");
      return;
    }
  pool_get (bm->neighbors, sif);
  memset (sif, 0, sizeof (*sif));
  clib_spinlock_init (&sif->lockp);
  sw = pool_elt_at_index (im->sw_interfaces, args->slave);
  sif->port_enabled = sw->flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP;
  sif->sw_if_index = sw->sw_if_index;
  sif->hw_if_index = sw->hw_if_index;
  sif->packet_template_index = (u8) ~ 0;
  sif->is_passive = args->is_passive;
  sif->group = args->group;
  sif->bif_dev_instance = bif->dev_instance;
  sif->mode = bif->mode;

  sif->is_long_timeout = args->is_long_timeout;
  if (args->is_long_timeout)
    sif->ttl_in_seconds = LACP_LONG_TIMOUT_TIME;
  else
    sif->ttl_in_seconds = LACP_SHORT_TIMOUT_TIME;

  hash_set (bm->neighbor_by_sw_if_index, sif->sw_if_index,
	    sif - bm->neighbors);
  vec_add1 (bif->slaves, sif->sw_if_index);

  hw = vnet_get_sup_hw_interface (vnm, sif->sw_if_index);
  /* Save the old mac */
  memcpy (sif->persistent_hw_address, hw->hw_address, 6);
  if (bif->use_custom_mac)
    {
      vnet_hw_interface_change_mac_address (vnm, hw->hw_if_index,
					    bif->hw_address);
    }
  else
    {
      // bond interface gets the mac address from the first slave
      if (vec_len (bif->slaves) == 1)
	{
	  memcpy (bif->hw_address, hw->hw_address, 6);
	  hw2 = vnet_get_sup_hw_interface (vnm, bif->sw_if_index);
	  vnet_hw_interface_change_mac_address (vnm, hw2->hw_if_index,
						hw->hw_address);
	}
      else
	{
	  // subsequent slaves gets the mac address of the bond interface
	  vnet_hw_interface_change_mac_address (vnm, hw->hw_if_index,
						bif->hw_address);
	}
    }

  if ((bif->mode == BOND_MODE_LACP) && bm->lacp_enable_disable)
    {
      (*bm->lacp_enable_disable) (vm, bif, sif, 1);
    }
  else
    {
      bond_enable_collecting_distributing (vm, sif);
    }

  args->rv = vnet_feature_enable_disable ("device-input", "bond-input",
					  hw->hw_if_index, 1, 0, 0);

  if (args->rv)
    {
      args->error =
	clib_error_return (0,
			   "Error encountered on input feature arc enable");
    }
}

static clib_error_t *
enslave_interface_command_fn (vlib_main_t * vm, unformat_input_t * input,
			      vlib_cli_command_t * cmd)
{
  bond_enslave_args_t args = { 0 };
  unformat_input_t _line_input, *line_input = &_line_input;
  vnet_main_t *vnm = vnet_get_main ();

  /* Get a line of input. */
  if (!unformat_user (input, unformat_line_input, line_input))
    return clib_error_return (0, "Missing required arguments.");

  args.slave = ~0;
  args.group = ~0;
  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
    {
      if (unformat (line_input, "%U %U",
		    unformat_vnet_sw_interface, vnm, &args.group,
		    unformat_vnet_sw_interface, vnm, &args.slave))
	;
      else if (unformat (line_input, "passive"))
	args.is_passive = 1;
      else if (unformat (line_input, "long-timeout"))
	args.is_long_timeout = 1;
      else
	{
	  args.error = clib_error_return (0, "unknown input `%U'",
					  format_unformat_error, input);
	  break;
	}
    }
  unformat_free (line_input);

  if (args.error)
    return args.error;
  if (args.group == ~0)
    return clib_error_return (0, "Missing bond interface");
  if (args.slave == ~0)
    return clib_error_return (0, "please specify valid slave interface name");

  bond_enslave (vm, &args);

  return args.error;
}

/* *INDENT-OFF* */
VLIB_CLI_COMMAND (enslave_interface_command, static) = {
  .path = "bond add",
  .short_help = "bond add <BondEthernetx> <slave-interface> "
                "[passive] [long-timeout]",
  .function = enslave_interface_command_fn,
};
/* *INDENT-ON* */

void
bond_detach_slave (vlib_main_t * vm, bond_detach_slave_args_t * args)
{
  bond_if_t *bif;
  slave_if_t *sif;

  sif = bond_get_slave_by_sw_if_index (args->slave);
  if (!sif)
    {
      args->rv = VNET_API_ERROR_INVALID_INTERFACE;
      args->error = clib_error_return (0, "interface was not enslaved");
      return;
    }
  bif = bond_get_master_by_dev_instance (sif->bif_dev_instance);
  bond_delete_neighbor (vm, bif, sif);
}

static clib_error_t *
detach_interface_command_fn (vlib_main_t * vm, unformat_input_t * input,
			     vlib_cli_command_t * cmd)
{
  bond_detach_slave_args_t args = { 0 };
  unformat_input_t _line_input, *line_input = &_line_input;
  vnet_main_t *vnm = vnet_get_main ();

  /* Get a line of input. */
  if (!unformat_user (input, unformat_line_input, line_input))
    return clib_error_return (0, "Missing required arguments.");

  args.slave = ~0;
  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
    {
      if (unformat (line_input, "%U",
		    unformat_vnet_sw_interface, vnm, &args.slave))
	;
      else
	{
	  args.error = clib_error_return (0, "unknown input `%U'",
					  format_unformat_error, input);
	  break;
	}
    }
  unformat_free (line_input);

  if (args.error)
    return args.error;
  if (args.slave == ~0)
    return clib_error_return (0, "please specify valid slave interface name");

  bond_detach_slave (vm, &args);

  return args.error;
}

/* *INDENT-OFF* */
VLIB_CLI_COMMAND (detach_interface_command, static) = {
  .path = "bond del",
  .short_help = "bond del <slave-interface>",
  .function = detach_interface_command_fn,
};
/* *INDENT-ON* */

static void
show_bond (vlib_main_t * vm)
{
  bond_main_t *bm = &bond_main;
  bond_if_t *bif;

  vlib_cli_output (vm, "%-16s %-12s %-12s %-13s %-14s %s",
		   "interface name", "sw_if_index", "mode",
		   "load balance", "active slaves", "slaves");

  /* *INDENT-OFF* */
  pool_foreach (bif, bm->interfaces,
  ({
    vlib_cli_output (vm, "%-16U %-12d %-12U %-13U %-14u %u",
		     format_bond_interface_name, bif->dev_instance,
		     bif->sw_if_index, format_bond_mode, bif->mode,
		     format_bond_load_balance, bif->lb,
		     vec_len (bif->active_slaves), vec_len (bif->slaves));
  }));
  /* *INDENT-ON* */
}

static void
show_bond_details (vlib_main_t * vm)
{
  bond_main_t *bm = &bond_main;
  bond_if_t *bif;
  u32 *sw_if_index;

  /* *INDENT-OFF* */
  pool_foreach (bif, bm->interfaces,
  ({
    vlib_cli_output (vm, "%U", format_bond_interface_name, bif->dev_instance);
    vlib_cli_output (vm, "  mode: %U",
		     format_bond_mode, bif->mode);
    vlib_cli_output (vm, "  load balance: %U",
		     format_bond_load_balance, bif->lb);
    if (bif->mode == BOND_MODE_ROUND_ROBIN)
      vlib_cli_output (vm, "  last xmit slave index: %u",
		       bif->lb_rr_last_index);
    vlib_cli_output (vm, "  number of active slaves: %d",
		     vec_len (bif->active_slaves));
    vec_foreach (sw_if_index, bif->active_slaves)
      {
        vlib_cli_output (vm, "    %U", format_vnet_sw_if_index_name,
			 vnet_get_main (), *sw_if_index);
      }
    vlib_cli_output (vm, "  number of slaves: %d", vec_len (bif->slaves));
    vec_foreach (sw_if_index, bif->slaves)
      {
        vlib_cli_output (vm, "    %U", format_vnet_sw_if_index_name,
			 vnet_get_main (), *sw_if_index);
      }
    vlib_cli_output (vm, "  device instance: %d", bif->dev_instance);
    vlib_cli_output (vm, "  sw_if_index: %d", bif->sw_if_index);
    vlib_cli_output (vm, "  hw_if_index: %d", bif->hw_if_index);
  }));
  /* *INDENT-ON* */
}

static clib_error_t *
show_bond_fn (vlib_main_t * vm, unformat_input_t * input,
	      vlib_cli_command_t * cmd)
{
  u8 details = 0;

  while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
    {
      if (unformat (input, "details"))
	details = 1;
      else
	{
	  return clib_error_return (0, "unknown input `%U'",
				    format_unformat_error, input);
	}
    }

  if (details)
    show_bond_details (vm);
  else
    show_bond (vm);

  return 0;
}

/* *INDENT-OFF* */
VLIB_CLI_COMMAND (show_bond_command, static) = {
  .path = "show bond",
  .short_help = "show bond [details]",
  .function = show_bond_fn,
};
/* *INDENT-ON* */

clib_error_t *
bond_cli_init (vlib_main_t * vm)
{
  bond_main_t *bm = &bond_main;

  bm->vlib_main = vm;
  bm->vnet_main = vnet_get_main ();
  bm->neighbor_by_sw_if_index = hash_create (0, sizeof (uword));

  return 0;
}

VLIB_INIT_FUNCTION (bond_cli_init);

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