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Vector Packet Processing
l2_bd.c
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1 /*
2  * l2_bd.c : layer 2 bridge domain
3  *
4  * Copyright (c) 2013 Cisco and/or its affiliates.
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at:
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17 
18 #include <vlib/vlib.h>
19 #include <vnet/vnet.h>
20 #include <vlib/cli.h>
21 #include <vnet/ethernet/ethernet.h>
22 #include <vnet/ip/format.h>
23 #include <vnet/l2/l2_input.h>
24 #include <vnet/l2/feat_bitmap.h>
25 #include <vnet/l2/l2_bd.h>
26 #include <vnet/l2/l2_learn.h>
27 #include <vnet/l2/l2_fib.h>
28 #include <vnet/l2/l2_vtr.h>
29 #include <vnet/ip/ip4_packet.h>
30 #include <vnet/ip/ip6_packet.h>
31 
32 #include <vppinfra/error.h>
33 #include <vppinfra/hash.h>
34 #include <vppinfra/vec.h>
35 
36 /**
37  * @file
38  * @brief Ethernet Bridge Domain.
39  *
40  * Code in this file manages Layer 2 bridge domains.
41  *
42  */
43 
45 
46 /**
47  Init bridge domain if not done already.
48  For feature bitmap, set all bits except ARP termination
49 */
50 void
52 {
53  if (bd_is_valid (bd_config))
54  return;
55  bd_config->feature_bitmap =
56  ~(L2INPUT_FEAT_ARP_TERM | L2INPUT_FEAT_UU_FWD | L2INPUT_FEAT_ARP_UFWD);
57  bd_config->bvi_sw_if_index = ~0;
58  bd_config->uu_fwd_sw_if_index = ~0;
59  bd_config->members = 0;
60  bd_config->flood_count = 0;
61  bd_config->tun_master_count = 0;
62  bd_config->tun_normal_count = 0;
63  bd_config->no_flood_count = 0;
64  bd_config->mac_by_ip4 = 0;
65  bd_config->mac_by_ip6 = hash_create_mem (0, sizeof (ip6_address_t),
66  sizeof (uword));
67 }
68 
69 u32
71 {
72  u32 *p = (u32 *) hash_get (bdm->bd_index_by_bd_id, bd_id);
73  if (!p)
74  return ~0;
75  return p[0];
76 }
77 
78 u32
80 {
81  ASSERT (!hash_get (bdm->bd_index_by_bd_id, bd_id));
83 
84  /* mark this index taken */
85  bdm->bd_index_bitmap = clib_bitmap_set (bdm->bd_index_bitmap, rv, 1);
86 
87  hash_set (bdm->bd_index_by_bd_id, bd_id, rv);
88 
91 
92  return rv;
93 }
94 
95 static inline void
97 {
98  u64 mac_addr;
99  ip6_address_t *ip6_addr_key;
100 
101  hash_free (bd->mac_by_ip4);
102  /* *INDENT-OFF* */
103  hash_foreach_mem (ip6_addr_key, mac_addr, bd->mac_by_ip6,
104  ({
105  clib_mem_free (ip6_addr_key); /* free memory used for ip6 addr key */
106  }));
107  /* *INDENT-ON* */
108  hash_free (bd->mac_by_ip6);
109 }
110 
111 static int
112 bd_delete (bd_main_t * bdm, u32 bd_index)
113 {
114  l2_bridge_domain_t *bd = &l2input_main.bd_configs[bd_index];
115  u32 bd_id = bd->bd_id;
116 
117  /* flush non-static MACs in BD and removed bd_id from hash table */
118  l2fib_flush_bd_mac (vlib_get_main (), bd_index);
119  hash_unset (bdm->bd_index_by_bd_id, bd_id);
120 
121  /* mark this index clear */
122  bdm->bd_index_bitmap = clib_bitmap_set (bdm->bd_index_bitmap, bd_index, 0);
123 
124  /* clear BD config for reuse: bd_id to -1 and clear feature_bitmap */
125  bd->bd_id = ~0;
126  bd->feature_bitmap = 0;
127 
128  /* free BD tag */
129  vec_free (bd->bd_tag);
130 
131  /* free memory used by BD */
132  vec_free (bd->members);
134 
135  return 0;
136 }
137 
138 static void
140 {
141  bd_config->flood_count = (vec_len (bd_config->members) -
142  (bd_config->tun_master_count ?
143  bd_config->tun_normal_count : 0));
144  bd_config->flood_count -= bd_config->no_flood_count;
145 }
146 
147 void
149 {
150  u32 ix = 0;
152  (vnet_get_main (), member->sw_if_index);
153 
154  /*
155  * Add one element to the vector
156  * vector is ordered [ bvi, normal/tun_masters..., tun_normals... no_flood]
157  * When flooding, the bvi interface (if present) must be the last member
158  * processed due to how BVI processing can change the packet. To enable
159  * this order, we make the bvi interface the first in the vector and
160  * flooding walks the vector in reverse. The flood-count determines where
161  * in the member list to start the walk from.
162  */
163  switch (sw_if->flood_class)
164  {
166  bd_config->no_flood_count++;
167  ix = vec_len (bd_config->members);
168  break;
170  ix = 0;
171  break;
173  bd_config->tun_master_count++;
174  /* Fall through */
176  ix = (vec_len (bd_config->members) -
177  bd_config->tun_normal_count - bd_config->no_flood_count);
178  break;
180  ix = (vec_len (bd_config->members) - bd_config->no_flood_count);
181  bd_config->tun_normal_count++;
182  break;
183  }
184 
185  vec_insert_elts (bd_config->members, member, 1, ix);
186  update_flood_count (bd_config);
187 }
188 
189 #define BD_REMOVE_ERROR_OK 0
190 #define BD_REMOVE_ERROR_NOT_FOUND 1
191 
192 u32
194 {
195  u32 ix;
196 
197  /* Find and delete the member */
198  vec_foreach_index (ix, bd_config->members)
199  {
200  l2_flood_member_t *m = vec_elt_at_index (bd_config->members, ix);
201  if (m->sw_if_index == sw_if_index)
202  {
204  (vnet_get_main (), sw_if_index);
205 
206  if (sw_if->flood_class != VNET_FLOOD_CLASS_NORMAL)
207  {
209  bd_config->tun_master_count--;
210  else if (sw_if->flood_class == VNET_FLOOD_CLASS_TUNNEL_NORMAL)
211  bd_config->tun_normal_count--;
212  else if (sw_if->flood_class == VNET_FLOOD_CLASS_NO_FLOOD)
213  bd_config->no_flood_count--;
214  }
215  vec_delete (bd_config->members, 1, ix);
216  update_flood_count (bd_config);
217 
218  return BD_REMOVE_ERROR_OK;
219  }
220  }
221 
223 }
224 
225 
226 clib_error_t *
228 {
229  bd_main_t *bdm = &bd_main;
230  bdm->bd_index_by_bd_id = hash_create (0, sizeof (uword));
231  /*
232  * create a dummy bd with bd_id of 0 and bd_index of 0 with feature set
233  * to packet drop only. Thus, packets received from any L2 interface with
234  * uninitialized bd_index of 0 can be dropped safely.
235  */
236  u32 bd_index = bd_add_bd_index (bdm, 0);
237  ASSERT (bd_index == 0);
238  l2input_main.bd_configs[0].feature_bitmap = L2INPUT_FEAT_DROP;
239 
240  bdm->vlib_main = vm;
241  return 0;
242 }
243 
245 
246 
247 /**
248  Set the learn/forward/flood flags for the bridge domain.
249  Return 0 if ok, non-zero if for an error.
250 */
251 u32
253 {
254 
255  l2_bridge_domain_t *bd_config = l2input_bd_config (bd_index);
256  bd_validate (bd_config);
257  u32 feature_bitmap = 0;
258 
259  if (flags & L2_LEARN)
260  {
261  feature_bitmap |= L2INPUT_FEAT_LEARN;
262  }
263  if (flags & L2_FWD)
264  {
265  feature_bitmap |= L2INPUT_FEAT_FWD;
266  }
267  if (flags & L2_FLOOD)
268  {
269  feature_bitmap |= L2INPUT_FEAT_FLOOD;
270  }
271  if (flags & L2_UU_FLOOD)
272  {
273  feature_bitmap |= L2INPUT_FEAT_UU_FLOOD;
274  }
275  if (flags & L2_ARP_TERM)
276  {
277  feature_bitmap |= L2INPUT_FEAT_ARP_TERM;
278  }
279  if (flags & L2_ARP_UFWD)
280  {
281  feature_bitmap |= L2INPUT_FEAT_ARP_UFWD;
282  }
283 
284  if (enable)
285  {
286  bd_config->feature_bitmap |= feature_bitmap;
287  }
288  else
289  {
290  bd_config->feature_bitmap &= ~feature_bitmap;
291  }
292 
293  return bd_config->feature_bitmap;
294 }
295 
296 /**
297  Set the mac age for the bridge domain.
298 */
299 void
300 bd_set_mac_age (vlib_main_t * vm, u32 bd_index, u8 age)
301 {
302  l2_bridge_domain_t *bd_config;
303  int enable = 0;
304 
306  bd_config = vec_elt_at_index (l2input_main.bd_configs, bd_index);
307  bd_config->mac_age = age;
308 
309  /* check if there is at least one bd with mac aging enabled */
310  vec_foreach (bd_config, l2input_main.bd_configs)
311  enable |= bd_config->bd_id != ~0 && bd_config->mac_age != 0;
312 
316 }
317 
318 /**
319  Set the tag for the bridge domain.
320 */
321 
322 static void
323 bd_set_bd_tag (vlib_main_t * vm, u32 bd_index, u8 * bd_tag)
324 {
325  u8 *old;
326  l2_bridge_domain_t *bd_config;
328  bd_config = vec_elt_at_index (l2input_main.bd_configs, bd_index);
329 
330  old = bd_config->bd_tag;
331 
332  if (bd_tag[0])
333  {
334  bd_config->bd_tag = format (0, "%s%c", bd_tag, 0);
335  }
336  else
337  {
338  bd_config->bd_tag = NULL;
339  }
340 
341  vec_free (old);
342 }
343 
344 /**
345  Set bridge-domain learn enable/disable.
346  The CLI format is:
347  set bridge-domain learn <bd_id> [disable]
348 */
349 static clib_error_t *
351  unformat_input_t * input, vlib_cli_command_t * cmd)
352 {
353  bd_main_t *bdm = &bd_main;
354  clib_error_t *error = 0;
355  u32 bd_index, bd_id;
356  u32 enable;
357  uword *p;
358 
359  if (!unformat (input, "%d", &bd_id))
360  {
361  error = clib_error_return (0, "expecting bridge-domain id but got `%U'",
362  format_unformat_error, input);
363  goto done;
364  }
365 
366  if (bd_id == 0)
367  return clib_error_return (0,
368  "No operations on the default bridge domain are supported");
369 
370  p = hash_get (bdm->bd_index_by_bd_id, bd_id);
371 
372  if (p == 0)
373  return clib_error_return (0, "No such bridge domain %d", bd_id);
374 
375  bd_index = p[0];
376 
377  enable = 1;
378  if (unformat (input, "disable"))
379  {
380  enable = 0;
381  }
382 
383  /* set the bridge domain flag */
384  bd_set_flags (vm, bd_index, L2_LEARN, enable);
385 
386 done:
387  return error;
388 }
389 
390 /*?
391  * Layer 2 learning can be enabled and disabled on each
392  * interface and on each bridge-domain. Use this command to
393  * manage bridge-domains. It is enabled by default.
394  *
395  * @cliexpar
396  * Example of how to enable learning (where 200 is the bridge-domain-id):
397  * @cliexcmd{set bridge-domain learn 200}
398  * Example of how to disable learning (where 200 is the bridge-domain-id):
399  * @cliexcmd{set bridge-domain learn 200 disable}
400 ?*/
401 /* *INDENT-OFF* */
402 VLIB_CLI_COMMAND (bd_learn_cli, static) = {
403  .path = "set bridge-domain learn",
404  .short_help = "set bridge-domain learn <bridge-domain-id> [disable]",
405  .function = bd_learn,
406 };
407 /* *INDENT-ON* */
408 
409 /**
410  Set bridge-domain forward enable/disable.
411  The CLI format is:
412  set bridge-domain forward <bd_index> [disable]
413 */
414 static clib_error_t *
416 {
417  bd_main_t *bdm = &bd_main;
418  clib_error_t *error = 0;
419  u32 bd_index, bd_id;
420  u32 enable;
421  uword *p;
422 
423  if (!unformat (input, "%d", &bd_id))
424  {
425  error = clib_error_return (0, "expecting bridge-domain id but got `%U'",
426  format_unformat_error, input);
427  goto done;
428  }
429 
430  if (bd_id == 0)
431  return clib_error_return (0,
432  "No operations on the default bridge domain are supported");
433 
434  p = hash_get (bdm->bd_index_by_bd_id, bd_id);
435 
436  if (p == 0)
437  return clib_error_return (0, "No such bridge domain %d", bd_id);
438 
439  bd_index = p[0];
440 
441  enable = 1;
442  if (unformat (input, "disable"))
443  {
444  enable = 0;
445  }
446 
447  /* set the bridge domain flag */
448  bd_set_flags (vm, bd_index, L2_FWD, enable);
449 
450 done:
451  return error;
452 }
453 
454 
455 /*?
456  * Layer 2 unicast forwarding can be enabled and disabled on each
457  * interface and on each bridge-domain. Use this command to
458  * manage bridge-domains. It is enabled by default.
459  *
460  * @cliexpar
461  * Example of how to enable forwarding (where 200 is the bridge-domain-id):
462  * @cliexcmd{set bridge-domain forward 200}
463  * Example of how to disable forwarding (where 200 is the bridge-domain-id):
464  * @cliexcmd{set bridge-domain forward 200 disable}
465 ?*/
466 /* *INDENT-OFF* */
467 VLIB_CLI_COMMAND (bd_fwd_cli, static) = {
468  .path = "set bridge-domain forward",
469  .short_help = "set bridge-domain forward <bridge-domain-id> [disable]",
470  .function = bd_fwd,
471 };
472 /* *INDENT-ON* */
473 
474 /**
475  Set bridge-domain flood enable/disable.
476  The CLI format is:
477  set bridge-domain flood <bd_index> [disable]
478 */
479 static clib_error_t *
481  unformat_input_t * input, vlib_cli_command_t * cmd)
482 {
483  bd_main_t *bdm = &bd_main;
484  clib_error_t *error = 0;
485  u32 bd_index, bd_id;
486  u32 enable;
487  uword *p;
488 
489  if (!unformat (input, "%d", &bd_id))
490  {
491  error = clib_error_return (0, "expecting bridge-domain id but got `%U'",
492  format_unformat_error, input);
493  goto done;
494  }
495 
496  if (bd_id == 0)
497  return clib_error_return (0,
498  "No operations on the default bridge domain are supported");
499 
500  p = hash_get (bdm->bd_index_by_bd_id, bd_id);
501 
502  if (p == 0)
503  return clib_error_return (0, "No such bridge domain %d", bd_id);
504 
505  bd_index = p[0];
506 
507  enable = 1;
508  if (unformat (input, "disable"))
509  {
510  enable = 0;
511  }
512 
513  /* set the bridge domain flag */
514  bd_set_flags (vm, bd_index, L2_FLOOD, enable);
515 
516 done:
517  return error;
518 }
519 
520 /*?
521  * Layer 2 flooding can be enabled and disabled on each
522  * interface and on each bridge-domain. Use this command to
523  * manage bridge-domains. It is enabled by default.
524  *
525  * @cliexpar
526  * Example of how to enable flooding (where 200 is the bridge-domain-id):
527  * @cliexcmd{set bridge-domain flood 200}
528  * Example of how to disable flooding (where 200 is the bridge-domain-id):
529  * @cliexcmd{set bridge-domain flood 200 disable}
530 ?*/
531 /* *INDENT-OFF* */
532 VLIB_CLI_COMMAND (bd_flood_cli, static) = {
533  .path = "set bridge-domain flood",
534  .short_help = "set bridge-domain flood <bridge-domain-id> [disable]",
535  .function = bd_flood,
536 };
537 /* *INDENT-ON* */
538 
539 /**
540  Set bridge-domain unknown-unicast flood enable/disable.
541  The CLI format is:
542  set bridge-domain uu-flood <bd_index> [disable]
543 */
544 static clib_error_t *
546  unformat_input_t * input, vlib_cli_command_t * cmd)
547 {
548  bd_main_t *bdm = &bd_main;
549  clib_error_t *error = 0;
550  u32 bd_index, bd_id;
551  u32 enable;
552  uword *p;
553 
554  if (!unformat (input, "%d", &bd_id))
555  {
556  error = clib_error_return (0, "expecting bridge-domain id but got `%U'",
557  format_unformat_error, input);
558  goto done;
559  }
560 
561  if (bd_id == 0)
562  return clib_error_return (0,
563  "No operations on the default bridge domain are supported");
564 
565  p = hash_get (bdm->bd_index_by_bd_id, bd_id);
566 
567  if (p == 0)
568  return clib_error_return (0, "No such bridge domain %d", bd_id);
569 
570  bd_index = p[0];
571 
572  enable = 1;
573  if (unformat (input, "disable"))
574  {
575  enable = 0;
576  }
577 
578  /* set the bridge domain flag */
579  bd_set_flags (vm, bd_index, L2_UU_FLOOD, enable);
580 
581 done:
582  return error;
583 }
584 
585 /*?
586  * Layer 2 unknown-unicast flooding can be enabled and disabled on each
587  * bridge-domain. It is enabled by default.
588  *
589  * @cliexpar
590  * Example of how to enable unknown-unicast flooding (where 200 is the
591  * bridge-domain-id):
592  * @cliexcmd{set bridge-domain uu-flood 200}
593  * Example of how to disable unknown-unicast flooding (where 200 is the bridge-domain-id):
594  * @cliexcmd{set bridge-domain uu-flood 200 disable}
595 ?*/
596 /* *INDENT-OFF* */
597 VLIB_CLI_COMMAND (bd_uu_flood_cli, static) = {
598  .path = "set bridge-domain uu-flood",
599  .short_help = "set bridge-domain uu-flood <bridge-domain-id> [disable]",
600  .function = bd_uu_flood,
601 };
602 /* *INDENT-ON* */
603 
604 /**
605  Set bridge-domain arp-unicast forward enable/disable.
606  The CLI format is:
607  set bridge-domain arp-ufwd <bd_index> [disable]
608 */
609 static clib_error_t *
611  unformat_input_t * input, vlib_cli_command_t * cmd)
612 {
613  bd_main_t *bdm = &bd_main;
614  clib_error_t *error = 0;
615  u32 bd_index, bd_id;
616  u32 enable;
617  uword *p;
618 
619  if (!unformat (input, "%d", &bd_id))
620  {
621  error = clib_error_return (0, "expecting bridge-domain id but got `%U'",
622  format_unformat_error, input);
623  goto done;
624  }
625 
626  if (bd_id == 0)
627  return clib_error_return (0,
628  "No operations on the default bridge domain are supported");
629 
630  p = hash_get (bdm->bd_index_by_bd_id, bd_id);
631 
632  if (p == 0)
633  return clib_error_return (0, "No such bridge domain %d", bd_id);
634 
635  bd_index = p[0];
636 
637  enable = 1;
638  if (unformat (input, "disable"))
639  {
640  enable = 0;
641  }
642 
643  /* set the bridge domain flag */
644  bd_set_flags (vm, bd_index, L2_ARP_UFWD, enable);
645 
646 done:
647  return error;
648 }
649 
650 /*?
651  * Layer 2 arp-unicast forwarding can be enabled and disabled on each
652  * bridge-domain. It is disabled by default.
653  *
654  * @cliexpar
655  * Example of how to enable arp-unicast forwarding (where 200 is the
656  * bridge-domain-id):
657  * @cliexcmd{set bridge-domain arp-ufwd 200}
658  * Example of how to disable arp-unicast forwarding (where 200 is the bridge-domain-id):
659  * @cliexcmd{set bridge-domain arp-ufwd 200 disable}
660 ?*/
661 /* *INDENT-OFF* */
662 VLIB_CLI_COMMAND (bd_arp_ufwd_cli, static) = {
663  .path = "set bridge-domain arp-ufwd",
664  .short_help = "set bridge-domain arp-ufwd <bridge-domain-id> [disable]",
665  .function = bd_arp_ufwd,
666 };
667 /* *INDENT-ON* */
668 
669 /**
670  Set bridge-domain arp term enable/disable.
671  The CLI format is:
672  set bridge-domain arp term <bridge-domain-id> [disable]
673 */
674 static clib_error_t *
676  unformat_input_t * input, vlib_cli_command_t * cmd)
677 {
678  bd_main_t *bdm = &bd_main;
679  clib_error_t *error = 0;
680  u32 bd_index, bd_id;
681  u32 enable;
682  uword *p;
683 
684  if (!unformat (input, "%d", &bd_id))
685  {
686  error = clib_error_return (0, "expecting bridge-domain id but got `%U'",
687  format_unformat_error, input);
688  goto done;
689  }
690 
691  if (bd_id == 0)
692  return clib_error_return (0,
693  "No operations on the default bridge domain are supported");
694 
695  p = hash_get (bdm->bd_index_by_bd_id, bd_id);
696  if (p)
697  bd_index = *p;
698  else
699  return clib_error_return (0, "No such bridge domain %d", bd_id);
700 
701  enable = 1;
702  if (unformat (input, "disable"))
703  enable = 0;
704 
705  /* set the bridge domain flag */
706  bd_set_flags (vm, bd_index, L2_ARP_TERM, enable);
707 
708 done:
709  return error;
710 }
711 
712 static clib_error_t *
714  unformat_input_t * input, vlib_cli_command_t * cmd)
715 {
716  bd_main_t *bdm = &bd_main;
717  clib_error_t *error = 0;
718  u32 bd_index, bd_id;
719  u32 age;
720  uword *p;
721 
722  if (!unformat (input, "%d", &bd_id))
723  {
724  error = clib_error_return (0, "expecting bridge-domain id but got `%U'",
725  format_unformat_error, input);
726  goto done;
727  }
728 
729  if (bd_id == 0)
730  return clib_error_return (0,
731  "No operations on the default bridge domain are supported");
732 
733  p = hash_get (bdm->bd_index_by_bd_id, bd_id);
734 
735  if (p == 0)
736  return clib_error_return (0, "No such bridge domain %d", bd_id);
737 
738  bd_index = p[0];
739 
740  if (!unformat (input, "%u", &age))
741  {
742  error =
743  clib_error_return (0, "expecting ageing time in minutes but got `%U'",
744  format_unformat_error, input);
745  goto done;
746  }
747 
748  /* set the bridge domain flag */
749  if (age > 255)
750  {
751  error =
752  clib_error_return (0, "mac aging time cannot be bigger than 255");
753  goto done;
754  }
755  bd_set_mac_age (vm, bd_index, (u8) age);
756 
757 done:
758  return error;
759 }
760 
761 /*?
762  * Layer 2 mac aging can be enabled and disabled on each
763  * bridge-domain. Use this command to set or disable mac aging
764  * on specific bridge-domains. It is disabled by default.
765  *
766  * @cliexpar
767  * Example of how to set mac aging (where 200 is the bridge-domain-id and
768  * 5 is aging time in minutes):
769  * @cliexcmd{set bridge-domain mac-age 200 5}
770  * Example of how to disable mac aging (where 200 is the bridge-domain-id):
771  * @cliexcmd{set bridge-domain flood 200 0}
772 ?*/
773 /* *INDENT-OFF* */
774 VLIB_CLI_COMMAND (bd_mac_age_cli, static) = {
775  .path = "set bridge-domain mac-age",
776  .short_help = "set bridge-domain mac-age <bridge-domain-id> <mins>",
777  .function = bd_mac_age,
778 };
779 /* *INDENT-ON* */
780 
781 /*?
782  * Modify whether or not an existing bridge-domain should terminate and respond
783  * to ARP Requests. ARP Termination is disabled by default.
784  *
785  * @cliexpar
786  * Example of how to enable ARP termination (where 200 is the bridge-domain-id):
787  * @cliexcmd{set bridge-domain arp term 200}
788  * Example of how to disable ARP termination (where 200 is the bridge-domain-id):
789  * @cliexcmd{set bridge-domain arp term 200 disable}
790 ?*/
791 /* *INDENT-OFF* */
792 VLIB_CLI_COMMAND (bd_arp_term_cli, static) = {
793  .path = "set bridge-domain arp term",
794  .short_help = "set bridge-domain arp term <bridge-domain-id> [disable]",
795  .function = bd_arp_term,
796 };
797 /* *INDENT-ON* */
798 
799 
800 /**
801  * Add/delete IP address to MAC address mapping.
802  *
803  * The clib hash implementation stores uword entries in the hash table.
804  * The hash table mac_by_ip4 is keyed via IP4 address and store the
805  * 6-byte MAC address directly in the hash table entry uword.
806  *
807  * @warning This only works for 64-bit processor with 8-byte uword;
808  * which means this code *WILL NOT WORK* for a 32-bit processor with
809  * 4-byte uword.
810  */
811 u32
814  const ip46_address_t * ip,
815  const mac_address_t * mac, u8 is_add)
816 {
817  l2_bridge_domain_t *bd_cfg = l2input_bd_config (bd_index);
818  u64 new_mac = mac_address_as_u64 (mac);
819  u64 *old_mac;
820 
821  /* make sure uword is 8 bytes */
822  ASSERT (sizeof (uword) == sizeof (u64));
823  ASSERT (bd_is_valid (bd_cfg));
824 
825  if (IP46_TYPE_IP6 == type)
826  {
827  ip6_address_t *ip6_addr_key;
828  hash_pair_t *hp;
829  old_mac = (u64 *) hash_get_mem (bd_cfg->mac_by_ip6, &ip->ip6);
830  if (is_add)
831  {
832  if (old_mac == NULL)
833  {
834  /* new entry - allocate and create ip6 address key */
835  ip6_addr_key = clib_mem_alloc (sizeof (ip6_address_t));
836  clib_memcpy (ip6_addr_key, &ip->ip6, sizeof (ip6_address_t));
837  }
838  else if (*old_mac == new_mac)
839  {
840  /* same mac entry already exist for ip6 address */
841  return 0;
842  }
843  else
844  {
845  /* update mac for ip6 address */
846  hp = hash_get_pair (bd_cfg->mac_by_ip6, &ip->ip6);
847  ip6_addr_key = (ip6_address_t *) hp->key;
848  }
849  hash_set_mem (bd_cfg->mac_by_ip6, ip6_addr_key, new_mac);
850  }
851  else
852  {
853  if (old_mac && (*old_mac == new_mac))
854  {
855  hp = hash_get_pair (bd_cfg->mac_by_ip6, &ip->ip6);
856  ip6_addr_key = (ip6_address_t *) hp->key;
857  hash_unset_mem (bd_cfg->mac_by_ip6, &ip->ip6);
858  clib_mem_free (ip6_addr_key);
859  }
860  else
861  return 1;
862  }
863  }
864  else
865  {
866  old_mac = (u64 *) hash_get (bd_cfg->mac_by_ip4, ip->ip4.as_u32);
867  if (is_add)
868  {
869  if (old_mac && (*old_mac == new_mac))
870  /* mac entry already exist */
871  return 0;
872  hash_set (bd_cfg->mac_by_ip4, ip->ip4.as_u32, new_mac);
873  }
874  else
875  {
876  if (old_mac && (*old_mac == new_mac))
877  hash_unset (bd_cfg->mac_by_ip4, ip->ip4.as_u32);
878  else
879  return 1;
880  }
881  }
882  return 0;
883 }
884 
885 /**
886  * Flush IP address to MAC address mapping tables in a BD.
887  */
888 void
890 {
891  l2_bridge_domain_t *bd = l2input_bd_config (bd_index);
892  ASSERT (bd_is_valid (bd));
894  bd->mac_by_ip4 = 0;
895  bd->mac_by_ip6 =
896  hash_create_mem (0, sizeof (ip6_address_t), sizeof (uword));
897 }
898 
899 /**
900  Set bridge-domain arp entry add/delete.
901  The CLI format is:
902  set bridge-domain arp entry <bridge-domain-id> <ip-addr> <mac-addr> [del]
903 */
904 static clib_error_t *
906  unformat_input_t * input, vlib_cli_command_t * cmd)
907 {
908  ip46_address_t ip_addr = ip46_address_initializer;
910  bd_main_t *bdm = &bd_main;
911  clib_error_t *error = 0;
912  u32 bd_index, bd_id;
914  u8 is_add = 1;
915  uword *p;
916 
917  if (!unformat (input, "%d", &bd_id))
918  {
919  error = clib_error_return (0, "expecting bridge-domain id but got `%U'",
920  format_unformat_error, input);
921  goto done;
922  }
923 
924  if (bd_id == 0)
925  return clib_error_return (0,
926  "No operations on the default bridge domain are supported");
927 
928  p = hash_get (bdm->bd_index_by_bd_id, bd_id);
929 
930  if (p)
931  bd_index = *p;
932  else
933  return clib_error_return (0, "No such bridge domain %d", bd_id);
934 
935  if (unformat (input, "%U", unformat_ip4_address, &ip_addr.ip4))
936  {
937  type = IP46_TYPE_IP4;
938  }
939  else if (unformat (input, "%U", unformat_ip6_address, &ip_addr.ip6))
940  {
941  type = IP46_TYPE_IP6;
942  }
943  else if (unformat (input, "del-all"))
944  {
945  bd_flush_ip_mac (bd_index);
946  goto done;
947  }
948  else
949  {
950  error = clib_error_return (0, "expecting IP address but got `%U'",
951  format_unformat_error, input);
952  goto done;
953  }
954 
955  if (!unformat (input, "%U", unformat_mac_address_t, &mac))
956  {
957  error = clib_error_return (0, "expecting MAC address but got `%U'",
958  format_unformat_error, input);
959  goto done;
960  }
961 
962  if (unformat (input, "del"))
963  {
964  is_add = 0;
965  }
966 
967  /* set the bridge domain flagAdd IP-MAC entry into bridge domain */
968  if (bd_add_del_ip_mac (bd_index, type, &ip_addr, &mac, is_add))
969  {
970  error = clib_error_return (0, "MAC %s for IP %U and MAC %U failed",
971  is_add ? "add" : "del",
973  format_mac_address_t, &mac);
974  }
975 
976 done:
977  return error;
978 }
979 
980 /*?
981  * Add an ARP entry to an existing bridge-domain.
982  *
983  * @cliexpar
984  * Example of how to add an ARP entry (where 200 is the bridge-domain-id):
985  * @cliexcmd{set bridge-domain arp entry 200 192.168.72.45 52:54:00:3b:83:1a}
986  * Example of how to delete an ARP entry (where 200 is the bridge-domain-id):
987  * @cliexcmd{set bridge-domain arp entry 200 192.168.72.45 52:54:00:3b:83:1a del}
988 ?*/
989 /* *INDENT-OFF* */
990 VLIB_CLI_COMMAND (bd_arp_entry_cli, static) = {
991  .path = "set bridge-domain arp entry",
992  .short_help = "set bridge-domain arp entry <bridge-domain-id> [<ip-addr> <mac-addr> [del] | del-all]",
993  .function = bd_arp_entry,
994 };
995 /* *INDENT-ON* */
996 
997 static u8 *
998 format_vtr (u8 * s, va_list * args)
999 {
1000  u32 vtr_op = va_arg (*args, u32);
1001  u32 dot1q = va_arg (*args, u32);
1002  u32 tag1 = va_arg (*args, u32);
1003  u32 tag2 = va_arg (*args, u32);
1004  switch (vtr_op)
1005  {
1006  case L2_VTR_DISABLED:
1007  return format (s, "none");
1008  case L2_VTR_PUSH_1:
1009  return format (s, "push-1 %s %d", dot1q ? "dot1q" : "dot1ad", tag1);
1010  case L2_VTR_PUSH_2:
1011  return format (s, "push-2 %s %d %d", dot1q ? "dot1q" : "dot1ad", tag1,
1012  tag2);
1013  case L2_VTR_POP_1:
1014  return format (s, "pop-1");
1015  case L2_VTR_POP_2:
1016  return format (s, "pop-2");
1017  case L2_VTR_TRANSLATE_1_1:
1018  return format (s, "trans-1-1 %s %d", dot1q ? "dot1q" : "dot1ad", tag1);
1019  case L2_VTR_TRANSLATE_1_2:
1020  return format (s, "trans-1-2 %s %d %d", dot1q ? "dot1q" : "dot1ad",
1021  tag1, tag2);
1022  case L2_VTR_TRANSLATE_2_1:
1023  return format (s, "trans-2-1 %s %d", dot1q ? "dot1q" : "dot1ad", tag1);
1024  case L2_VTR_TRANSLATE_2_2:
1025  return format (s, "trans-2-2 %s %d %d", dot1q ? "dot1q" : "dot1ad",
1026  tag1, tag2);
1027  default:
1028  return format (s, "none");
1029  }
1030 }
1031 
1032 static u8 *
1033 format_uu_cfg (u8 * s, va_list * args)
1034 {
1035  l2_bridge_domain_t *bd_config = va_arg (*args, l2_bridge_domain_t *);
1036 
1037  if (bd_config->feature_bitmap & L2INPUT_FEAT_UU_FWD)
1038  return (format (s, "%U", format_vnet_sw_if_index_name_with_NA,
1039  vnet_get_main (), bd_config->uu_fwd_sw_if_index));
1040  else if (bd_config->feature_bitmap & L2INPUT_FEAT_UU_FLOOD)
1041  return (format (s, "flood"));
1042  else
1043  return (format (s, "drop"));
1044 }
1045 
1046 /**
1047  Show bridge-domain state.
1048  The CLI format is:
1049  show bridge-domain [<bd_index>]
1050 */
1051 static clib_error_t *
1053 {
1054  vnet_main_t *vnm = vnet_get_main ();
1055  bd_main_t *bdm = &bd_main;
1056  clib_error_t *error = 0;
1057  u32 bd_index = ~0;
1058  l2_bridge_domain_t *bd_config;
1059  u32 start, end;
1060  u32 detail = 0;
1061  u32 intf = 0;
1062  u32 arp = 0;
1063  u32 bd_tag = 0;
1064  u32 bd_id = ~0;
1065  uword *p;
1066 
1067  start = 1;
1069 
1070  if (unformat (input, "%d", &bd_id))
1071  {
1072  if (unformat (input, "detail"))
1073  detail = 1;
1074  else if (unformat (input, "det"))
1075  detail = 1;
1076  if (unformat (input, "int"))
1077  intf = 1;
1078  if (unformat (input, "arp"))
1079  arp = 1;
1080  if (unformat (input, "bd-tag"))
1081  bd_tag = 1;
1082 
1083  if (bd_id == 0)
1084  return clib_error_return (0,
1085  "No operations on the default bridge domain are supported");
1086 
1087  p = hash_get (bdm->bd_index_by_bd_id, bd_id);
1088  if (p)
1089  bd_index = *p;
1090  else
1091  return clib_error_return (0, "No such bridge domain %d", bd_id);
1092 
1093  vec_validate (l2input_main.bd_configs, bd_index);
1094  bd_config = vec_elt_at_index (l2input_main.bd_configs, bd_index);
1095  if (bd_is_valid (bd_config))
1096  {
1097  start = bd_index;
1098  end = start + 1;
1099  }
1100  else
1101  {
1102  vlib_cli_output (vm, "bridge-domain %d not in use", bd_id);
1103  goto done;
1104  }
1105  }
1106 
1107  /* Show all bridge-domains that have been initialized */
1108  u32 printed = 0;
1109  u8 *as = 0;
1110  for (bd_index = start; bd_index < end; bd_index++)
1111  {
1112  bd_config = vec_elt_at_index (l2input_main.bd_configs, bd_index);
1113  if (bd_is_valid (bd_config))
1114  {
1115  if (!printed)
1116  {
1117  printed = 1;
1118  vlib_cli_output (vm,
1119  "%=8s %=7s %=4s %=9s %=9s %=9s %=11s %=9s %=9s %=9s %=11s",
1120  "BD-ID", "Index", "BSN", "Age(min)",
1121  "Learning", "U-Forwrd", "UU-Flood",
1122  "Flooding", "ARP-Term", "arp-ufwd",
1123  "BVI-Intf");
1124  }
1125 
1126  if (bd_config->mac_age)
1127  as = format (as, "%d", bd_config->mac_age);
1128  else
1129  as = format (as, "off");
1130  vlib_cli_output (vm,
1131  "%=8d %=7d %=4d %=9v %=9s %=9s %=11U %=9s %=9s %=9s %=11U",
1132  bd_config->bd_id, bd_index, bd_config->seq_num, as,
1133  bd_config->feature_bitmap & L2INPUT_FEAT_LEARN ?
1134  "on" : "off",
1135  bd_config->feature_bitmap & L2INPUT_FEAT_FWD ?
1136  "on" : "off",
1137  format_uu_cfg, bd_config,
1138  bd_config->feature_bitmap & L2INPUT_FEAT_FLOOD ?
1139  "on" : "off",
1140  bd_config->feature_bitmap & L2INPUT_FEAT_ARP_TERM ?
1141  "on" : "off",
1142  bd_config->feature_bitmap & L2INPUT_FEAT_ARP_UFWD ?
1143  "on" : "off",
1145  vnm, bd_config->bvi_sw_if_index);
1146  vec_reset_length (as);
1147 
1148  if (detail || intf)
1149  {
1150  /* Show all member interfaces */
1151  int i;
1152  vec_foreach_index (i, bd_config->members)
1153  {
1154  l2_flood_member_t *member =
1155  vec_elt_at_index (bd_config->members, i);
1156  u8 swif_seq_num = *l2fib_swif_seq_num (member->sw_if_index);
1157  u32 vtr_opr, dot1q, tag1, tag2;
1158  if (i == 0)
1159  {
1160  vlib_cli_output (vm, "\n%=30s%=7s%=5s%=5s%=5s%=9s%=30s",
1161  "Interface", "If-idx", "ISN", "SHG",
1162  "BVI", "TxFlood", "VLAN-Tag-Rewrite");
1163  }
1164  l2vtr_get (vm, vnm, member->sw_if_index, &vtr_opr, &dot1q,
1165  &tag1, &tag2);
1166  vlib_cli_output (vm, "%=30U%=7d%=5d%=5d%=5s%=9s%=30U",
1168  member->sw_if_index, member->sw_if_index,
1169  swif_seq_num, member->shg,
1170  member->flags & L2_FLOOD_MEMBER_BVI ? "*" :
1171  "-", i < bd_config->flood_count ? "*" : "-",
1172  format_vtr, vtr_opr, dot1q, tag1, tag2);
1173  }
1174  if (~0 != bd_config->uu_fwd_sw_if_index)
1175  vlib_cli_output (vm, "%=30U%=7d%=5d%=5d%=5s%=9s%=30s",
1177  bd_config->uu_fwd_sw_if_index,
1178  bd_config->uu_fwd_sw_if_index,
1179  0, 0, "uu", "-", "None");
1180 
1181  }
1182 
1183  if ((detail || arp) &&
1184  (bd_config->feature_bitmap & L2INPUT_FEAT_ARP_TERM))
1185  {
1186  u32 ip4_addr;
1187  ip6_address_t *ip6_addr;
1188  u64 mac_addr;
1189  vlib_cli_output (vm,
1190  "\n IP4/IP6 to MAC table for ARP Termination");
1191 
1192  /* *INDENT-OFF* */
1193  hash_foreach (ip4_addr, mac_addr, bd_config->mac_by_ip4,
1194  ({
1195  vlib_cli_output (vm, "%=40U => %=20U",
1196  format_ip4_address, &ip4_addr,
1197  format_ethernet_address, &mac_addr);
1198  }));
1199 
1200  hash_foreach_mem (ip6_addr, mac_addr, bd_config->mac_by_ip6,
1201  ({
1202  vlib_cli_output (vm, "%=40U => %=20U",
1203  format_ip6_address, ip6_addr,
1204  format_ethernet_address, &mac_addr);
1205  }));
1206  /* *INDENT-ON* */
1207  }
1208 
1209  if ((detail || bd_tag) && (bd_config->bd_tag))
1210  {
1211  vlib_cli_output (vm, "\n BD-Tag: %s", bd_config->bd_tag);
1212 
1213  }
1214  }
1215  }
1216  vec_free (as);
1217 
1218  if (!printed)
1219  {
1220  vlib_cli_output (vm, "no bridge-domains in use");
1221  }
1222 
1223 done:
1224  return error;
1225 }
1226 
1227 /*?
1228  * Show a summary of all the bridge-domain instances or detailed view of a
1229  * single bridge-domain. Bridge-domains are created by adding an interface
1230  * to a bridge using the '<em>set interface l2 bridge</em>' command.
1231  *
1232  * @cliexpar
1233  * @parblock
1234  * Example of displaying all bridge-domains:
1235  * @cliexstart{show bridge-domain}
1236  * ID Index Learning U-Forwrd UU-Flood Flooding ARP-Term BVI-Intf
1237  * 0 0 off off off off off local0
1238  * 200 1 on on on on off N/A
1239  * @cliexend
1240  *
1241  * Example of displaying details of a single bridge-domains:
1242  * @cliexstart{show bridge-domain 200 detail}
1243  * ID Index Learning U-Forwrd UU-Flood Flooding ARP-Term BVI-Intf
1244  * 200 1 on on on on off N/A
1245  *
1246  * Interface Index SHG BVI VLAN-Tag-Rewrite
1247  * GigabitEthernet0/8/0.200 3 0 - none
1248  * GigabitEthernet0/9/0.200 4 0 - none
1249  * @cliexend
1250  * @endparblock
1251 ?*/
1252 /* *INDENT-OFF* */
1253 VLIB_CLI_COMMAND (bd_show_cli, static) = {
1254  .path = "show bridge-domain",
1255  .short_help = "show bridge-domain [bridge-domain-id [detail|int|arp|bd-tag]]",
1256  .function = bd_show,
1257 };
1258 /* *INDENT-ON* */
1259 
1260 int
1262 {
1263  bd_main_t *bdm = &bd_main;
1264  vlib_main_t *vm = bdm->vlib_main;
1265  int rv = 0;
1266 
1267  u32 bd_index = bd_find_index (bdm, a->bd_id);
1268  if (a->is_add)
1269  {
1270  if (bd_index != ~0)
1271  return VNET_API_ERROR_BD_ALREADY_EXISTS;
1272  if (a->bd_id > L2_BD_ID_MAX)
1273  return VNET_API_ERROR_BD_ID_EXCEED_MAX;
1274  bd_index = bd_add_bd_index (bdm, a->bd_id);
1275 
1276  bd_flags_t enable_flags = 0, disable_flags = 0;
1277  if (a->flood)
1278  enable_flags |= L2_FLOOD;
1279  else
1280  disable_flags |= L2_FLOOD;
1281 
1282  if (a->uu_flood)
1283  enable_flags |= L2_UU_FLOOD;
1284  else
1285  disable_flags |= L2_UU_FLOOD;
1286 
1287  if (a->forward)
1288  enable_flags |= L2_FWD;
1289  else
1290  disable_flags |= L2_FWD;
1291 
1292  if (a->learn)
1293  enable_flags |= L2_LEARN;
1294  else
1295  disable_flags |= L2_LEARN;
1296 
1297  if (a->arp_term)
1298  enable_flags |= L2_ARP_TERM;
1299  else
1300  disable_flags |= L2_ARP_TERM;
1301 
1302  if (a->arp_ufwd)
1303  enable_flags |= L2_ARP_UFWD;
1304  else
1305  disable_flags |= L2_ARP_UFWD;
1306 
1307  if (enable_flags)
1308  bd_set_flags (vm, bd_index, enable_flags, 1 /* enable */ );
1309 
1310  if (disable_flags)
1311  bd_set_flags (vm, bd_index, disable_flags, 0 /* disable */ );
1312 
1313  bd_set_mac_age (vm, bd_index, a->mac_age);
1314 
1315  if (a->bd_tag)
1316  bd_set_bd_tag (vm, bd_index, a->bd_tag);
1317 
1318  }
1319  else
1320  {
1321  if (bd_index == ~0)
1322  return VNET_API_ERROR_NO_SUCH_ENTRY;
1323  if (bd_index == 0)
1324  return VNET_API_ERROR_BD_NOT_MODIFIABLE;
1325  if (vec_len (l2input_main.bd_configs[bd_index].members))
1326  return VNET_API_ERROR_BD_IN_USE;
1327  rv = bd_delete (bdm, bd_index);
1328  }
1329 
1330  return rv;
1331 }
1332 
1333 /**
1334  Create or delete bridge-domain.
1335  The CLI format:
1336  create bridge-domain <bd_index> [learn <0|1>] [forward <0|1>] [uu-flood <0|1>] [flood <0|1>]
1337  [arp-term <0|1>] [mac-age <nn>] [bd-tag <tag>] [del]
1338 */
1339 
1340 static clib_error_t *
1342  vlib_cli_command_t * cmd)
1343 {
1344  unformat_input_t _line_input, *line_input = &_line_input;
1345  clib_error_t *error = 0;
1346  u8 is_add = 1;
1347  u32 bd_id = ~0;
1348  u32 flood = 1, forward = 1, learn = 1, uu_flood = 1, arp_term =
1349  0, arp_ufwd = 0;
1350  u32 mac_age = 0;
1351  u8 *bd_tag = NULL;
1353  int rv;
1354 
1355  /* Get a line of input. */
1356  if (!unformat_user (input, unformat_line_input, line_input))
1357  return 0;
1358 
1359  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1360  {
1361  if (unformat (line_input, "%d", &bd_id))
1362  ;
1363  else if (unformat (line_input, "flood %d", &flood))
1364  ;
1365  else if (unformat (line_input, "uu-flood %d", &uu_flood))
1366  ;
1367  else if (unformat (line_input, "forward %d", &forward))
1368  ;
1369  else if (unformat (line_input, "learn %d", &learn))
1370  ;
1371  else if (unformat (line_input, "arp-term %d", &arp_term))
1372  ;
1373  else if (unformat (line_input, "arp-ufwd %d", &arp_ufwd))
1374  ;
1375  else if (unformat (line_input, "mac-age %d", &mac_age))
1376  ;
1377  else if (unformat (line_input, "bd-tag %s", &bd_tag))
1378  ;
1379  else if (unformat (line_input, "del"))
1380  {
1381  is_add = 0;
1382  flood = uu_flood = forward = learn = 0;
1383  }
1384  else
1385  break;
1386  }
1387 
1388  if (bd_id == ~0)
1389  {
1390  error = clib_error_return (0, "bridge-domain-id not specified");
1391  goto done;
1392  }
1393 
1394  if (bd_id == 0)
1395  {
1396  error = clib_error_return (0, "bridge domain 0 can not be modified");
1397  goto done;
1398  }
1399 
1400  if (mac_age > 255)
1401  {
1402  error = clib_error_return (0, "mac age must be less than 256");
1403  goto done;
1404  }
1405  if ((bd_tag) && (strlen ((char *) bd_tag) > 63))
1406  {
1407  error = clib_error_return (0, "bd-tag cannot be longer than 63");
1408  goto done;
1409  }
1410 
1411  clib_memset (a, 0, sizeof (*a));
1412  a->is_add = is_add;
1413  a->bd_id = bd_id;
1414  a->flood = (u8) flood;
1415  a->uu_flood = (u8) uu_flood;
1416  a->forward = (u8) forward;
1417  a->learn = (u8) learn;
1418  a->arp_term = (u8) arp_term;
1419  a->arp_ufwd = (u8) arp_ufwd;
1420  a->mac_age = (u8) mac_age;
1421  a->bd_tag = bd_tag;
1422 
1423  rv = bd_add_del (a);
1424 
1425  switch (rv)
1426  {
1427  case 0:
1428  if (is_add)
1429  vlib_cli_output (vm, "bridge-domain %d", bd_id);
1430  break;
1431  case VNET_API_ERROR_BD_IN_USE:
1432  error = clib_error_return (0, "bridge domain in use - remove members");
1433  goto done;
1434  case VNET_API_ERROR_NO_SUCH_ENTRY:
1435  error = clib_error_return (0, "bridge domain ID does not exist");
1436  goto done;
1437  case VNET_API_ERROR_BD_NOT_MODIFIABLE:
1438  error = clib_error_return (0, "bridge domain 0 can not be modified");
1439  goto done;
1440  case VNET_API_ERROR_BD_ID_EXCEED_MAX:
1441  error = clib_error_return (0, "bridge domain ID exceed 16M limit");
1442  goto done;
1443  default:
1444  error = clib_error_return (0, "bd_add_del returned %d", rv);
1445  goto done;
1446  }
1447 
1448 done:
1449  vec_free (bd_tag);
1450  unformat_free (line_input);
1451 
1452  return error;
1453 }
1454 
1455 
1456 /*?
1457  * Create/Delete bridge-domain instance
1458  *
1459  * @cliexpar
1460  * @parblock
1461  * Example of creating bridge-domain 1:
1462  * @cliexstart{create bridge-domain 1}
1463  * bridge-domain 1
1464  * @cliexend
1465  *
1466  * Example of creating bridge-domain 2 with enabling arp-term, mac-age 60:
1467  * @cliexstart{create bridge-domain 2 arp-term 1 mac-age 60}
1468  * bridge-domain 2
1469  *
1470  * vpp# show bridge-domain
1471  * ID Index BSN Age(min) Learning U-Forwrd UU-Flood Flooding ARP-Term BVI-Intf
1472  * 0 0 0 off off off off off off local0
1473  * 1 1 0 off on on off on off N/A
1474  * 2 2 0 60 on on off on on N/A
1475  *
1476  * @cliexend
1477  *
1478  * Example of delete bridge-domain 1:
1479  * @cliexstart{create bridge-domain 1 del}
1480  * @cliexend
1481  * @endparblock
1482 ?*/
1483 
1484 /* *INDENT-OFF* */
1485 VLIB_CLI_COMMAND (bd_create_cli, static) = {
1486  .path = "create bridge-domain",
1487  .short_help = "create bridge-domain <bridge-domain-id>"
1488  " [learn <0|1>] [forward <0|1>] [uu-flood <0|1>] [flood <0|1>] [arp-term <0|1>]"
1489  " [arp-ufwd <0|1>] [mac-age <nn>] [bd-tag <tag>] [del]",
1490  .function = bd_add_del_command_fn,
1491 };
1492 /* *INDENT-ON* */
1493 
1494 
1495 
1496 /*
1497  * fd.io coding-style-patch-verification: ON
1498  *
1499  * Local Variables:
1500  * eval: (c-set-style "gnu")
1501  * End:
1502  */
void bd_validate(l2_bridge_domain_t *bd_config)
Init bridge domain if not done already.
Definition: l2_bd.c:51
#define vec_validate(V, I)
Make sure vector is long enough for given index (no header, unspecified alignment) ...
Definition: vec.h:439
#define vec_foreach_index(var, v)
Iterate over vector indices.
#define hash_set(h, key, value)
Definition: hash.h:255
u32 flags
Definition: vhost_user.h:141
u32 uu_fwd_sw_if_index
Definition: l2_bd.h:80
u8 * format_vnet_sw_if_index_name_with_NA(u8 *s, va_list *args)
Format sw_if_index.
Definition: l2_fib.c:91
static clib_error_t * bd_arp_ufwd(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Set bridge-domain arp-unicast forward enable/disable.
Definition: l2_bd.c:610
vl_api_mac_address_t mac
Definition: l2.api:490
#define hash_unset(h, key)
Definition: hash.h:261
a
Definition: bitmap.h:538
u32 bd_add_del_ip_mac(u32 bd_index, ip46_type_t type, const ip46_address_t *ip, const mac_address_t *mac, u8 is_add)
Add/delete IP address to MAC address mapping.
Definition: l2_bd.c:812
vnet_main_t * vnet_get_main(void)
Definition: misc.c:46
u32 bvi_sw_if_index
Definition: l2_bd.h:74
unsigned long u64
Definition: types.h:89
clib_memset(h->entries, 0, sizeof(h->entries[0]) *entries)
Definition: l2_bd.h:152
static void update_flood_count(l2_bridge_domain_t *bd_config)
Definition: l2_bd.c:139
int i
l2_flood_member_t * members
Definition: l2_bd.h:86
static uword * clib_bitmap_set(uword *ai, uword i, uword value)
Sets the ith bit of a bitmap to new_value Removes trailing zeros from the bitmap. ...
Definition: bitmap.h:167
static_always_inline u8 * l2fib_swif_seq_num(u32 sw_if_index)
Definition: l2_fib.h:457
uword unformat_user(unformat_input_t *input, unformat_function_t *func,...)
Definition: unformat.c:989
format_function_t format_ip46_address
Definition: format.h:61
#define hash_set_mem(h, key, value)
Definition: hash.h:275
static vnet_sw_interface_t * vnet_get_sw_interface(vnet_main_t *vnm, u32 sw_if_index)
u8 * format(u8 *s, const char *fmt,...)
Definition: format.c:424
int bd_add_del(l2_bridge_domain_add_del_args_t *a)
Definition: l2_bd.c:1261
u32 bd_remove_member(l2_bridge_domain_t *bd_config, u32 sw_if_index)
Definition: l2_bd.c:193
#define L2_FLOOD_MEMBER_BVI
Definition: l2_bd.h:51
format_function_t format_vnet_sw_if_index_name
unsigned char u8
Definition: types.h:56
#define vec_reset_length(v)
Reset vector length to zero NULL-pointer tolerant.
#define clib_memcpy(d, s, n)
Definition: string.h:180
vnet_flood_class_t flood_class
Definition: interface.h:728
unformat_function_t unformat_ip4_address
Definition: format.h:70
vl_api_interface_index_t sw_if_index
Definition: gre.api:50
#define VLIB_INIT_FUNCTION(x)
Definition: init.h:173
void bd_add_member(l2_bridge_domain_t *bd_config, l2_flood_member_t *member)
Definition: l2_bd.c:148
static clib_error_t * bd_fwd(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Set bridge-domain forward enable/disable.
Definition: l2_bd.c:415
#define hash_foreach(key_var, value_var, h, body)
Definition: hash.h:442
clib_error_t * l2bd_init(vlib_main_t *vm)
Definition: l2_bd.c:227
#define vec_elt_at_index(v, i)
Get vector value at index i checking that i is in bounds.
#define clib_error_return(e, args...)
Definition: error.h:99
#define hash_get_pair(h, key)
Definition: hash.h:252
unsigned int u32
Definition: types.h:88
static u8 * format_vtr(u8 *s, va_list *args)
Definition: l2_bd.c:998
static void bd_set_bd_tag(vlib_main_t *vm, u32 bd_index, u8 *bd_tag)
Set the tag for the bridge domain.
Definition: l2_bd.c:323
uword * bd_index_by_bd_id
Definition: l2_bd.h:36
unformat_function_t unformat_line_input
Definition: format.h:283
vl_api_fib_path_type_t type
Definition: fib_types.api:123
#define BD_REMOVE_ERROR_OK
Definition: l2_bd.c:189
#define hash_create_mem(elts, key_bytes, value_bytes)
Definition: hash.h:661
#define hash_get(h, key)
Definition: hash.h:249
#define hash_unset_mem(h, key)
Definition: hash.h:291
static void vlib_process_signal_event(vlib_main_t *vm, uword node_index, uword type_opaque, uword data)
Definition: node_funcs.h:934
u32 bd_id
Definition: gbp.api:274
struct _unformat_input_t unformat_input_t
#define hash_free(h)
Definition: hash.h:310
void l2fib_flush_bd_mac(vlib_main_t *vm, u32 bd_index)
Flush all non static MACs in a bridge domain.
Definition: l2_fib.c:815
static clib_error_t * bd_arp_entry(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Set bridge-domain arp entry add/delete.
Definition: l2_bd.c:905
static clib_error_t * bd_add_del_command_fn(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Create or delete bridge-domain.
Definition: l2_bd.c:1341
static clib_error_t * bd_flood(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Set bridge-domain flood enable/disable.
Definition: l2_bd.c:480
uword * bd_index_bitmap
Definition: l2_bd.h:39
#define hash_foreach_mem(key_var, value_var, h, body)
Definition: hash.h:461
static u8 * format_uu_cfg(u8 *s, va_list *args)
Definition: l2_bd.c:1033
static u32 bd_is_valid(l2_bridge_domain_t *bd_config)
Definition: l2_bd.h:134
uword unformat_mac_address_t(unformat_input_t *input, va_list *args)
Definition: mac_address.c:37
#define BD_REMOVE_ERROR_NOT_FOUND
Definition: l2_bd.c:190
#define ip46_address_initializer
Definition: ip6_packet.h:96
static int bd_delete(bd_main_t *bdm, u32 bd_index)
Definition: l2_bd.c:112
unformat_function_t unformat_ip6_address
Definition: format.h:91
void bd_set_mac_age(vlib_main_t *vm, u32 bd_index, u8 age)
Set the mac age for the bridge domain.
Definition: l2_bd.c:300
u32 no_flood_count
Definition: l2_bd.h:98
#define UNFORMAT_END_OF_INPUT
Definition: format.h:145
vlib_main_t * vm
Definition: buffer.c:323
u32 tun_master_count
Definition: l2_bd.h:92
#define vec_free(V)
Free vector&#39;s memory (no header).
Definition: vec.h:341
u32 bd_set_flags(vlib_main_t *vm, u32 bd_index, bd_flags_t flags, u32 enable)
Set the learn/forward/flood flags for the bridge domain.
Definition: l2_bd.c:252
static clib_error_t * bd_learn(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Set bridge-domain learn enable/disable.
Definition: l2_bd.c:350
static void bd_free_ip_mac_tables(l2_bridge_domain_t *bd)
Definition: l2_bd.c:96
uword * mac_by_ip6
Definition: l2_bd.h:102
static_always_inline l2_bridge_domain_t * l2input_bd_config(u32 bd_index)
Definition: l2_input.h:86
void bd_flush_ip_mac(u32 bd_index)
Flush IP address to MAC address mapping tables in a BD.
Definition: l2_bd.c:889
#define VLIB_CLI_COMMAND(x,...)
Definition: cli.h:161
static clib_error_t * bd_show(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Show bridge-domain state.
Definition: l2_bd.c:1052
#define hash_create(elts, value_bytes)
Definition: hash.h:696
#define L2_BD_ID_MAX
Definition: l2_bd.h:116
#define ASSERT(truth)
#define vec_delete(V, N, M)
Delete N elements starting at element M.
Definition: vec.h:784
ip46_type_t
Definition: ip6_packet.h:70
#define vec_insert_elts(V, E, N, M)
Insert N vector elements starting at element M, insert given elements (no header, unspecified alignme...
Definition: vec.h:763
static void clib_mem_free(void *p)
Definition: mem.h:226
u32 tun_normal_count
Definition: l2_bd.h:95
static void * clib_mem_alloc(uword size)
Definition: mem.h:153
static vlib_main_t * vlib_get_main(void)
Definition: global_funcs.h:23
static clib_error_t * bd_arp_term(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Set bridge-domain arp term enable/disable.
Definition: l2_bd.c:675
vlib_main_t * vlib_main
Definition: l2_bd.h:42
static clib_error_t * bd_mac_age(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: l2_bd.c:713
l2input_main_t l2input_main
Definition: l2_input.c:128
vl_api_address_t ip
Definition: l2.api:489
static_always_inline u64 mac_address_as_u64(const mac_address_t *mac)
Definition: mac_address.h:112
u32 feature_bitmap
Definition: l2_bd.h:69
#define vec_len(v)
Number of elements in vector (rvalue-only, NULL tolerant)
u64 uword
Definition: types.h:112
static void unformat_free(unformat_input_t *i)
Definition: format.h:163
l2_bridge_domain_t * bd_configs
Definition: l2_input.h:65
static clib_error_t * bd_uu_flood(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Set bridge-domain unknown-unicast flood enable/disable.
Definition: l2_bd.c:545
#define hash_get_mem(h, key)
Definition: hash.h:269
u32 l2vtr_get(vlib_main_t *vlib_main, vnet_main_t *vnet_main, u32 sw_if_index, u32 *vtr_op, u32 *push_dot1q, u32 *vtr_tag1, u32 *vtr_tag2)
Get vtag tag rewrite on the given interface.
Definition: l2_vtr.c:347
u8 * format_unformat_error(u8 *s, va_list *va)
Definition: unformat.c:91
u8 * format_mac_address_t(u8 *s, va_list *args)
Definition: mac_address.c:27
#define vec_foreach(var, vec)
Vector iterator.
uword * mac_by_ip4
Definition: l2_bd.h:101
u32 sw_if_index
Definition: l2_bd.h:55
u32 bd_find_index(bd_main_t *bdm, u32 bd_id)
Get a bridge domain.
Definition: l2_bd.c:70
static uword clib_bitmap_first_clear(uword *ai)
Return the lowest numbered clear bit in a bitmap.
Definition: bitmap.h:445
bd_main_t bd_main
Definition: l2_bd.c:44
vlib_node_registration_t l2fib_mac_age_scanner_process_node
(constructor) VLIB_REGISTER_NODE (l2fib_mac_age_scanner_process_node)
Definition: l2_fib.c:1250
void vlib_cli_output(vlib_main_t *vm, char *fmt,...)
Definition: cli.c:772
u32 bd_add_bd_index(bd_main_t *bdm, u32 bd_id)
Create a bridge domain.
Definition: l2_bd.c:79
uword key
Definition: hash.h:162
uword unformat(unformat_input_t *i, const char *fmt,...)
Definition: unformat.c:978
CLIB vectors are ubiquitous dynamically resized arrays with by user defined "headers".
static uword unformat_check_input(unformat_input_t *i)
Definition: format.h:171
enum bd_flags_t_ bd_flags_t