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Vector Packet Processing
interface.c
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1 /*
2  * Copyright (c) 2015 Cisco and/or its affiliates.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at:
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 /*
16  * interface.c: VNET interfaces/sub-interfaces
17  *
18  * Copyright (c) 2008 Eliot Dresselhaus
19  *
20  * Permission is hereby granted, free of charge, to any person obtaining
21  * a copy of this software and associated documentation files (the
22  * "Software"), to deal in the Software without restriction, including
23  * without limitation the rights to use, copy, modify, merge, publish,
24  * distribute, sublicense, and/or sell copies of the Software, and to
25  * permit persons to whom the Software is furnished to do so, subject to
26  * the following conditions:
27  *
28  * The above copyright notice and this permission notice shall be
29  * included in all copies or substantial portions of the Software.
30  *
31  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
32  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
33  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
34  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
35  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
36  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
37  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
38  */
39 
40 #include <vnet/vnet.h>
41 #include <vnet/plugin/plugin.h>
42 #include <vnet/fib/ip6_fib.h>
43 #include <vnet/adj/adj.h>
44 #include <vnet/adj/adj_mcast.h>
45 #include <vnet/l2/l2_input.h>
46 
48 {
52 
54  u32 hw_if_index,
56  flags,
58  helper_flags);
59 
63  flags,
65  helper_flags);
66 
68  u32 hw_if_index,
69  u32 hw_class_index,
70  u32 redistribute);
71 
72 typedef struct
73 {
74  /* Either sw or hw interface index. */
76 
77  /* Flags. */
80 
81 static void
83 {
85  va_arg (*va, vnet_sw_hw_interface_state_t *);
86  u32 n = va_arg (*va, u32);
87  u32 i;
88  for (i = 0; i < n; i++)
89  {
90  serialize_integer (m, s[i].sw_hw_if_index,
91  sizeof (s[i].sw_hw_if_index));
92  serialize_integer (m, s[i].flags, sizeof (s[i].flags));
93  }
94 }
95 
96 static void
98  va_list * va)
99 {
101  va_arg (*va, vnet_sw_hw_interface_state_t *);
102  u32 n = va_arg (*va, u32);
103  u32 i;
104  for (i = 0; i < n; i++)
105  {
106  unserialize_integer (m, &s[i].sw_hw_if_index,
107  sizeof (s[i].sw_hw_if_index));
108  unserialize_integer (m, &s[i].flags, sizeof (s[i].flags));
109  }
110 }
111 
114 {
116 
119 
120  return (swf);
121 }
122 
123 void
125 {
126  vnet_main_t *vnm = va_arg (*va, vnet_main_t *);
127  vnet_sw_hw_interface_state_t *sts = 0, *st;
128  vnet_sw_interface_t *sif;
129  vnet_hw_interface_t *hif;
131 
132  /* Serialize hardware interface classes since they may have changed.
133  Must do this before sending up/down flags. */
134  /* *INDENT-OFF* */
135  pool_foreach (hif, im->hw_interfaces, ({
136  vnet_hw_interface_class_t * hw_class = vnet_get_hw_interface_class (vnm, hif->hw_class_index);
137  serialize_cstring (m, hw_class->name);
138  }));
139  /* *INDENT-ON* */
140 
141  /* Send sw/hw interface state when non-zero. */
142  /* *INDENT-OFF* */
143  pool_foreach (sif, im->sw_interfaces, ({
144  if (sif->flags != 0)
145  {
146  vec_add2 (sts, st, 1);
147  st->sw_hw_if_index = sif->sw_if_index;
148  st->flags = sif->flags;
149  }
150  }));
151  /* *INDENT-ON* */
152 
154 
155  if (sts)
156  _vec_len (sts) = 0;
157 
158  /* *INDENT-OFF* */
159  pool_foreach (hif, im->hw_interfaces, ({
160  if (hif->flags != 0)
161  {
162  vec_add2 (sts, st, 1);
163  st->sw_hw_if_index = hif->hw_if_index;
164  st->flags = vnet_hw_interface_flags_to_sw(hif->flags);
165  }
166  }));
167  /* *INDENT-ON* */
168 
170 
171  vec_free (sts);
172 }
173 
176 {
178 
181 
182  return (hwf);
183 }
184 
185 void
187 {
188  vnet_main_t *vnm = va_arg (*va, vnet_main_t *);
189  vnet_sw_hw_interface_state_t *sts = 0, *st;
190 
191  /* First set interface hardware class. */
192  {
194  vnet_hw_interface_t *hif;
195  char *class_name;
196  uword *p;
197  clib_error_t *error;
198 
199  /* *INDENT-OFF* */
200  pool_foreach (hif, im->hw_interfaces, ({
201  unserialize_cstring (m, &class_name);
202  p = hash_get_mem (im->hw_interface_class_by_name, class_name);
203  ASSERT (p != 0);
204  error = vnet_hw_interface_set_class_helper (vnm, hif->hw_if_index, p[0], /* redistribute */ 0);
205  if (error)
206  clib_error_report (error);
207  vec_free (class_name);
208  }));
209  /* *INDENT-ON* */
210  }
211 
213  vec_foreach (st, sts)
214  vnet_sw_interface_set_flags_helper (vnm, st->sw_hw_if_index, st->flags,
215  /* no distribute */ 0);
216  vec_free (sts);
217 
219  vec_foreach (st, sts)
220  {
222  (vnm, st->sw_hw_if_index, vnet_sw_interface_flags_to_hw (st->flags),
223  /* no distribute */ 0);
224  }
225  vec_free (sts);
226 }
227 
228 static clib_error_t *
230  u32 flags,
231  _vnet_interface_function_list_elt_t **
232  elts)
233 {
234  _vnet_interface_function_list_elt_t *elt;
236  clib_error_t *error = 0;
237 
238  for (prio = VNET_ITF_FUNC_PRIORITY_LOW;
239  prio <= VNET_ITF_FUNC_PRIORITY_HIGH; prio++)
240  {
241  elt = elts[prio];
242 
243  while (elt)
244  {
245  error = elt->fp (vnm, if_index, flags);
246  if (error)
247  return error;
248  elt = elt->next_interface_function;
249  }
250  }
251  return error;
252 }
253 
254 static clib_error_t *
256  u32 is_create)
257 {
258  vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
259  vnet_hw_interface_class_t *hw_class =
261  vnet_device_class_t *dev_class =
263  clib_error_t *error = 0;
264 
265  if (hw_class->interface_add_del_function
266  && (error =
267  hw_class->interface_add_del_function (vnm, hw_if_index, is_create)))
268  return error;
269 
270  if (dev_class->interface_add_del_function
271  && (error =
272  dev_class->interface_add_del_function (vnm, hw_if_index,
273  is_create)))
274  return error;
275 
277  (vnm, hw_if_index, is_create, vnm->hw_interface_add_del_functions);
278 
279  return error;
280 }
281 
282 static clib_error_t *
284  u32 is_create)
285 {
287  (vnm, sw_if_index, is_create, vnm->sw_interface_add_del_functions);
288 }
289 
290 #define VNET_INTERFACE_SET_FLAGS_HELPER_IS_CREATE (1 << 0)
291 #define VNET_INTERFACE_SET_FLAGS_HELPER_WANT_REDISTRIBUTE (1 << 1)
292 
293 static clib_error_t *
297  helper_flags)
298 {
299  vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
300  vnet_hw_interface_class_t *hw_class =
302  u32 mask;
303  clib_error_t *error = 0;
304  u32 is_create =
305  (helper_flags & VNET_INTERFACE_SET_FLAGS_HELPER_IS_CREATE) != 0;
306 
307  mask =
309  flags &= mask;
310 
311  /* Call hardware interface add/del callbacks. */
312  if (is_create)
313  call_hw_interface_add_del_callbacks (vnm, hw_if_index, is_create);
314 
315  /* Already in the desired state? */
316  if (!is_create && (hi->flags & mask) == flags)
317  goto done;
318 
321  {
322  /* Do hardware class (e.g. ethernet). */
323  if (hw_class->link_up_down_function
324  && (error = hw_class->link_up_down_function (vnm, hw_if_index,
325  flags)))
326  goto done;
327 
329  (vnm, hw_if_index, flags, vnm->hw_interface_link_up_down_functions);
330 
331  if (error)
332  goto done;
333  }
334 
335  hi->flags &= ~mask;
336  hi->flags |= flags;
337 
338 done:
339  return error;
340 }
341 
342 static clib_error_t *
346  helper_flags)
347 {
348  vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index);
349  u32 mask;
350  clib_error_t *error = 0;
351  u32 is_create =
352  (helper_flags & VNET_INTERFACE_SET_FLAGS_HELPER_IS_CREATE) != 0;
353  u32 old_flags;
354 
356  flags &= mask;
357 
358  if (is_create)
359  {
360  error =
361  call_sw_interface_add_del_callbacks (vnm, sw_if_index, is_create);
362  if (error)
363  goto done;
364 
366  {
367  /* Notify everyone when the interface is created as admin up */
368  error = call_elf_section_interface_callbacks (vnm, sw_if_index,
369  flags,
370  vnm->
371  sw_interface_admin_up_down_functions);
372  if (error)
373  goto done;
374  }
375  }
376  else
377  {
378  vnet_sw_interface_t *si_sup = si;
379 
380  /* Check that super interface is in correct state. */
381  if (si->type == VNET_SW_INTERFACE_TYPE_SUB)
382  {
383  si_sup = vnet_get_sw_interface (vnm, si->sup_sw_if_index);
384 
385  /* Check to see if we're bringing down the soft interface and if it's parent is up */
386  if ((flags != (si_sup->flags & mask)) &&
387  (!((flags == 0)
388  && ((si_sup->flags & mask) ==
390  {
391  error = clib_error_return (0, "super-interface %U must be %U",
393  si_sup,
395  flags);
396  goto done;
397  }
398  }
399 
400  /* Do not change state for slave link of bonded interfaces */
402  {
403  error = clib_error_return
404  (0, "not allowed as %U belong to a BondEthernet interface",
406  goto done;
407  }
408 
409  /* Already in the desired state? */
410  if ((si->flags & mask) == flags)
411  goto done;
412 
413  /* Sub-interfaces of hardware interfaces that do no redistribute,
414  do not redistribute themselves. */
415  if (si_sup->type == VNET_SW_INTERFACE_TYPE_HARDWARE)
416  {
418  vnet_get_hw_interface (vnm, si_sup->hw_if_index);
419  vnet_device_class_t *dev_class =
421  if (!dev_class->redistribute)
422  helper_flags &=
424  }
425 
426  /* set the flags now before invoking the registered clients
427  * so that the state they query is consistent with the state here notified */
428  old_flags = si->flags;
429  si->flags &= ~mask;
430  si->flags |= flags;
431  if ((flags | old_flags) & VNET_SW_INTERFACE_FLAG_ADMIN_UP)
433  (vnm, sw_if_index, flags,
435 
436  if (error)
437  {
438  /* restore flags on error */
439  si->flags = old_flags;
440  goto done;
441  }
442 
444  {
447  vnet_hw_interface_class_t *hw_class =
449  vnet_device_class_t *dev_class =
451 
452  if ((flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) &&
454  {
455  error = clib_error_return (0, "Interface in the error state");
456  goto done;
457  }
458 
459  /* save the si admin up flag */
460  old_flags = si->flags;
461 
462  /* update si admin up flag in advance if we are going admin down */
463  if (!(flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP))
464  si->flags &= ~VNET_SW_INTERFACE_FLAG_ADMIN_UP;
465 
466  if (dev_class->admin_up_down_function
467  && (error = dev_class->admin_up_down_function (vnm,
468  si->hw_if_index,
469  flags)))
470  {
471  /* restore si admin up flag to it's original state on errors */
472  si->flags = old_flags;
473  goto done;
474  }
475 
476  if (hw_class->admin_up_down_function
477  && (error = hw_class->admin_up_down_function (vnm,
478  si->hw_if_index,
479  flags)))
480  {
481  /* restore si admin up flag to it's original state on errors */
482  si->flags = old_flags;
483  goto done;
484  }
485 
486  /* Admin down implies link down. */
487  if (!(flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP)
490  hi->flags &
492  helper_flags);
493  }
494  }
495 
496  si->flags &= ~mask;
497  si->flags |= flags;
498 
499 done:
500  return error;
501 }
502 
503 clib_error_t *
506 {
508  (vnm, hw_if_index, flags,
510 }
511 
512 clib_error_t *
515 {
517  (vnm, sw_if_index, flags,
519 }
520 
521 static u32
523  vnet_sw_interface_t * template)
524 {
528 
529  pool_get (im->sw_interfaces, sw);
530  sw_if_index = sw - im->sw_interfaces;
531 
532  sw[0] = template[0];
533 
534  sw->flags = 0;
535  sw->sw_if_index = sw_if_index;
537  sw->sup_sw_if_index = sw->sw_if_index;
538 
539  /* Allocate counters for this interface. */
540  {
541  u32 i;
542 
544 
545  for (i = 0; i < vec_len (im->sw_if_counters); i++)
546  {
547  vlib_validate_simple_counter (&im->sw_if_counters[i], sw_if_index);
548  vlib_zero_simple_counter (&im->sw_if_counters[i], sw_if_index);
549  }
550 
551  for (i = 0; i < vec_len (im->combined_sw_if_counters); i++)
552  {
554  sw_if_index);
556  sw_if_index);
557  }
558 
560  }
561 
562  return sw_if_index;
563 }
564 
565 clib_error_t *
567  u32 * sw_if_index)
568 {
569  clib_error_t *error;
571  vnet_device_class_t *dev_class;
572 
573  hi = vnet_get_sup_hw_interface (vnm, template->sup_sw_if_index);
574  dev_class = vnet_get_device_class (vnm, hi->dev_class_index);
575 
576  if (template->type == VNET_SW_INTERFACE_TYPE_SUB &&
577  dev_class->subif_add_del_function)
578  {
579  error = dev_class->subif_add_del_function (vnm, hi->hw_if_index,
580  (struct vnet_sw_interface_t
581  *) template, 1);
582  if (error)
583  return error;
584  }
585 
586  *sw_if_index = vnet_create_sw_interface_no_callbacks (vnm, template);
588  (vnm, *sw_if_index, template->flags,
590 
591  if (error)
592  {
593  /* undo the work done by vnet_create_sw_interface_no_callbacks() */
595  vnet_sw_interface_t *sw =
596  pool_elt_at_index (im->sw_interfaces, *sw_if_index);
597  pool_put (im->sw_interfaces, sw);
598  }
599 
600  return error;
601 }
602 
603 void
605 {
607  vnet_sw_interface_t *sw =
608  pool_elt_at_index (im->sw_interfaces, sw_if_index);
609 
610  /* Check if the interface has config and is removed from L2 BD or XConnect */
612  l2_input_config_t *config;
613  if (sw_if_index < vec_len (l2input_main.configs))
614  {
615  config = vec_elt_at_index (l2input_main.configs, sw_if_index);
616  if (config->xconnect)
617  set_int_l2_mode (vm, vnm, MODE_L3, config->output_sw_if_index, 0,
618  L2_BD_PORT_TYPE_NORMAL, 0, 0);
619  if (config->xconnect || config->bridge)
620  set_int_l2_mode (vm, vnm, MODE_L3, sw_if_index, 0,
621  L2_BD_PORT_TYPE_NORMAL, 0, 0);
622  }
623  vnet_clear_sw_interface_tag (vnm, sw_if_index);
624 
625  /* Bring down interface in case it is up. */
626  if (sw->flags != 0)
627  vnet_sw_interface_set_flags (vnm, sw_if_index, /* flags */ 0);
628 
629  call_sw_interface_add_del_callbacks (vnm, sw_if_index, /* is_create */ 0);
630 
631  pool_put (im->sw_interfaces, sw);
632 }
633 
634 static clib_error_t *
636 {
638  (vnm, sw_if_index, 0, vnm->sw_interface_mtu_change_functions);
639 }
640 
641 void
643 {
644  vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index);
645 
646  if (si->mtu[VNET_MTU_L3] != mtu)
647  {
648  si->mtu[VNET_MTU_L3] = mtu;
649  call_sw_interface_mtu_change_callbacks (vnm, sw_if_index);
650  }
651 }
652 
653 void
655  u32 mtu[])
656 {
657  vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index);
658  bool changed = false;
659  int i;
660 
661  for (i = 0; i < VNET_N_MTU; i++)
662  {
663  if (si->mtu[i] != mtu[i])
664  {
665  si->mtu[i] = mtu[i];
666  changed = true;
667  }
668  }
669  /* Notify interested parties */
670  if (changed)
671  call_sw_interface_mtu_change_callbacks (vnm, sw_if_index);
672 }
673 
674 void
676  u32 sw_if_index, u8 enable)
677 {
679 
680  si = vnet_get_sw_interface (vnm, sw_if_index);
681 
682  if (enable)
684  else
686 
687  ip4_directed_broadcast (sw_if_index, enable);
688 }
689 
690 /*
691  * Reflect a change in hardware MTU on protocol MTUs
692  */
693 static walk_rc_t
695 {
696  u32 *link_mtu = ctx;
697  vnet_sw_interface_set_mtu (vnm, sw_if_index, *link_mtu);
698  return WALK_CONTINUE;
699 }
700 
701 void
702 vnet_hw_interface_set_mtu (vnet_main_t * vnm, u32 hw_if_index, u32 mtu)
703 {
704  vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
705 
706  if (hi->max_packet_bytes != mtu)
707  {
708  hi->max_packet_bytes = mtu;
711  &mtu);
712  }
713 }
714 
715 static void
717  u32 node_index, vnet_device_class_t * dev_class)
718 {
719  vlib_node_t *n = vlib_get_node (vm, node_index);
720 
721  n->function = dev_class->tx_function;
722  n->format_trace = dev_class->format_tx_trace;
723 
724  vlib_register_errors (vm, node_index,
725  dev_class->tx_function_n_errors,
726  dev_class->tx_function_error_strings);
727 }
728 
729 static void
731  u32 node_index, vnet_hw_interface_class_t * hw_class)
732 {
733  vlib_node_t *n = vlib_get_node (vm, node_index);
734  n->format_buffer = hw_class->format_header;
735  n->unformat_buffer = hw_class->unformat_header;
736 }
737 
738 /* Register an interface instance. */
739 u32
741  u32 dev_class_index,
742  u32 dev_instance,
743  u32 hw_class_index, u32 hw_instance)
744 {
747  vnet_device_class_t *dev_class =
748  vnet_get_device_class (vnm, dev_class_index);
749  vnet_hw_interface_class_t *hw_class =
750  vnet_get_hw_interface_class (vnm, hw_class_index);
751  vlib_main_t *vm = vnm->vlib_main;
753  vnet_config_main_t *cm;
754  u32 hw_index, i;
755  char *tx_node_name = NULL, *output_node_name = NULL;
756 
757  pool_get (im->hw_interfaces, hw);
758  clib_memset (hw, 0, sizeof (*hw));
759 
760  hw_index = hw - im->hw_interfaces;
761  hw->hw_if_index = hw_index;
763 
764  if (dev_class->format_device_name)
765  hw->name = format (0, "%U", dev_class->format_device_name, dev_instance);
766  else if (hw_class->format_interface_name)
767  hw->name = format (0, "%U", hw_class->format_interface_name,
768  dev_instance);
769  else
770  hw->name = format (0, "%s%x", hw_class->name, dev_instance);
771 
772  if (!im->hw_interface_by_name)
773  im->hw_interface_by_name = hash_create_vec ( /* size */ 0,
774  sizeof (hw->name[0]),
775  sizeof (uword));
776 
777  hash_set_mem (im->hw_interface_by_name, hw->name, hw_index);
778 
779  /* Make hardware interface point to software interface. */
780  {
781  vnet_sw_interface_t sw = {
783  .flood_class = VNET_FLOOD_CLASS_NORMAL,
784  .hw_if_index = hw_index
785  };
787  }
788 
789  hw->dev_class_index = dev_class_index;
790  hw->dev_instance = dev_instance;
791  hw->hw_class_index = hw_class_index;
792  hw->hw_instance = hw_instance;
793 
794  hw->max_rate_bits_per_sec = 0;
795  hw->min_packet_bytes = 0;
797 
798  if (dev_class->tx_function == 0)
799  goto no_output_nodes; /* No output/tx nodes to create */
800 
801  tx_node_name = (char *) format (0, "%v-tx", hw->name);
802  output_node_name = (char *) format (0, "%v-output", hw->name);
803 
804  /* If we have previously deleted interface nodes, re-use them. */
805  if (vec_len (im->deleted_hw_interface_nodes) > 0)
806  {
808  vlib_node_t *node;
809  vlib_node_runtime_t *nrt;
810 
811  hn = vec_end (im->deleted_hw_interface_nodes) - 1;
812 
813  hw->tx_node_index = hn->tx_node_index;
815 
816  vlib_node_rename (vm, hw->tx_node_index, "%v", tx_node_name);
817  vlib_node_rename (vm, hw->output_node_index, "%v", output_node_name);
818 
819  /* *INDENT-OFF* */
822 
823  rt = vlib_node_get_runtime_data (this_vlib_main, hw->output_node_index);
824  ASSERT (rt->is_deleted == 1);
825  rt->is_deleted = 0;
826  rt->hw_if_index = hw_index;
827  rt->sw_if_index = hw->sw_if_index;
828  rt->dev_instance = hw->dev_instance;
829 
830  rt = vlib_node_get_runtime_data (this_vlib_main, hw->tx_node_index);
831  rt->hw_if_index = hw_index;
832  rt->sw_if_index = hw->sw_if_index;
833  rt->dev_instance = hw->dev_instance;
834  });
835  /* *INDENT-ON* */
836 
837  /* The new class may differ from the old one.
838  * Functions have to be updated. */
839  node = vlib_get_node (vm, hw->output_node_index);
840  node->function = vnet_interface_output_node;
841  node->format_trace = format_vnet_interface_output_trace;
842  /* *INDENT-OFF* */
844  nrt = vlib_node_get_runtime (this_vlib_main, hw->output_node_index);
845  nrt->function = node->function;
846  });
847  /* *INDENT-ON* */
848 
849  node = vlib_get_node (vm, hw->tx_node_index);
850  node->function = dev_class->tx_function;
851  node->format_trace = dev_class->format_tx_trace;
852  /* *INDENT-OFF* */
854  nrt = vlib_node_get_runtime (this_vlib_main, hw->tx_node_index);
855  nrt->function = node->function;
856  });
857  /* *INDENT-ON* */
858 
859  _vec_len (im->deleted_hw_interface_nodes) -= 1;
860  }
861  else
862  {
865  .hw_if_index = hw_index,
866  .sw_if_index = hw->sw_if_index,
867  .dev_instance = hw->dev_instance,
868  .is_deleted = 0,
869  };
870 
871  clib_memset (&r, 0, sizeof (r));
872  r.type = VLIB_NODE_TYPE_INTERNAL;
873  r.runtime_data = &rt;
874  r.runtime_data_bytes = sizeof (rt);
875  r.scalar_size = 0;
876  r.vector_size = sizeof (u32);
877 
878  r.flags = VLIB_NODE_FLAG_IS_OUTPUT;
879  r.name = tx_node_name;
880  r.function = dev_class->tx_function;
881 
882  hw->tx_node_index = vlib_register_node (vm, &r);
883 
885  "error-drop",
887 
888  r.flags = 0;
889  r.name = output_node_name;
890  r.function = vnet_interface_output_node;
891  r.format_trace = format_vnet_interface_output_trace;
892 
893  {
894  static char *e[] = {
895  "interface is down",
896  "interface is deleted",
897  "no buffers to segment GSO",
898  };
899 
900  r.n_errors = ARRAY_LEN (e);
901  r.error_strings = e;
902  }
903  hw->output_node_index = vlib_register_node (vm, &r);
904 
906  "error-drop",
909  hw->tx_node_index,
911 
912  /* add interface to the list of "output-interface" feature arc start nodes
913  and clone nexts from 1st interface if it exists */
915  cm = &fcm->config_main;
916  i = vec_len (cm->start_node_indices);
919  if (hw_index)
920  {
921  /* copy nexts from 1st interface */
922  vnet_hw_interface_t *first_hw;
923  vlib_node_t *first_node;
924 
925  first_hw = vnet_get_hw_interface (vnm, /* hw_if_index */ 0);
926  first_node = vlib_get_node (vm, first_hw->output_node_index);
927 
928  /* 1st 2 nexts are already added above */
929  for (i = 2; i < vec_len (first_node->next_nodes); i++)
931  first_node->next_nodes[i], i);
932  }
933  }
934 
935  setup_output_node (vm, hw->output_node_index, hw_class);
936  setup_tx_node (vm, hw->tx_node_index, dev_class);
937 
938 no_output_nodes:
939  /* Call all up/down callbacks with zero flags when interface is created. */
940  vnet_sw_interface_set_flags_helper (vnm, hw->sw_if_index, /* flags */ 0,
942  vnet_hw_interface_set_flags_helper (vnm, hw_index, /* flags */ 0,
944  vec_free (tx_node_name);
945  vec_free (output_node_name);
946 
947  return hw_index;
948 }
949 
950 void
952 {
954  vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
955  vlib_main_t *vm = vnm->vlib_main;
956  vnet_device_class_t *dev_class = vnet_get_device_class (vnm,
957  hw->dev_class_index);
958  /* If it is up, mark it down. */
959  if (hw->flags != 0)
960  vnet_hw_interface_set_flags (vnm, hw_if_index, /* flags */ 0);
961 
962  /* Call delete callbacks. */
963  call_hw_interface_add_del_callbacks (vnm, hw_if_index, /* is_create */ 0);
964 
965  /* Delete any sub-interfaces. */
966  {
967  u32 id, sw_if_index;
968  /* *INDENT-OFF* */
969  hash_foreach (id, sw_if_index, hw->sub_interface_sw_if_index_by_id,
970  ({
971  vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index);
972  u64 sup_and_sub_key =
973  ((u64) (si->sup_sw_if_index) << 32) | (u64) si->sub.id;
974  hash_unset_mem_free (&im->sw_if_index_by_sup_and_sub, &sup_and_sub_key);
975  vnet_delete_sw_interface (vnm, sw_if_index);
976  }));
978  /* *INDENT-ON* */
979  }
980 
981  /* Delete software interface corresponding to hardware interface. */
983 
984  if (dev_class->tx_function)
985  {
986  /* Put output/tx nodes into recycle pool */
988 
989  /* *INDENT-OFF* */
991  ({
993  vlib_node_get_runtime_data (this_vlib_main, hw->output_node_index);
994 
995  /* Mark node runtime as deleted so output node (if called)
996  * will drop packets. */
997  rt->is_deleted = 1;
998  });
999  /* *INDENT-ON* */
1000 
1002  "interface-%d-output-deleted", hw_if_index);
1003  vlib_node_rename (vm, hw->tx_node_index, "interface-%d-tx-deleted",
1004  hw_if_index);
1005  vec_add2 (im->deleted_hw_interface_nodes, dn, 1);
1006  dn->tx_node_index = hw->tx_node_index;
1008  }
1009 
1011  vec_free (hw->name);
1012  vec_free (hw->hw_address);
1015 
1016  pool_put (im->hw_interfaces, hw);
1017 }
1018 
1019 void
1021  u32 hw_if_index,
1022  vnet_hw_sw_interface_walk_t fn, void *ctx)
1023 {
1025  u32 id, sw_if_index;
1026 
1027  hi = vnet_get_hw_interface (vnm, hw_if_index);
1028  /* the super first, then the sub interfaces */
1029  if (WALK_STOP == fn (vnm, hi->sw_if_index, ctx))
1030  return;
1031 
1032  /* *INDENT-OFF* */
1033  hash_foreach (id, sw_if_index,
1035  ({
1036  if (WALK_STOP == fn (vnm, sw_if_index, ctx))
1037  break;
1038  }));
1039  /* *INDENT-ON* */
1040 }
1041 
1042 void
1044  vnet_hw_interface_walk_t fn, void *ctx)
1045 {
1048 
1049  im = &vnm->interface_main;
1050 
1051  /* *INDENT-OFF* */
1052  pool_foreach (hi, im->hw_interfaces,
1053  ({
1054  if (WALK_STOP == fn(vnm, hi->hw_if_index, ctx))
1055  break;
1056  }));
1057  /* *INDENT-ON* */
1058 }
1059 
1060 void
1062  vnet_sw_interface_walk_t fn, void *ctx)
1063 {
1065  vnet_sw_interface_t *si;
1066 
1067  im = &vnm->interface_main;
1068 
1069  /* *INDENT-OFF* */
1070  pool_foreach (si, im->sw_interfaces,
1071  {
1072  if (WALK_STOP == fn (vnm, si, ctx))
1073  break;
1074  });
1075  /* *INDENT-ON* */
1076 }
1077 
1078 void
1080  u32 hw_class_index, u32 hw_instance)
1081 {
1082  vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1084  vnet_get_hw_interface_class (vnm, hw_class_index);
1085 
1086  hi->hw_class_index = hw_class_index;
1087  hi->hw_instance = hw_instance;
1089 }
1090 
1091 static clib_error_t *
1093  u32 hw_class_index, u32 redistribute)
1094 {
1095  vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1097  vnet_hw_interface_class_t *old_class =
1099  vnet_hw_interface_class_t *new_class =
1100  vnet_get_hw_interface_class (vnm, hw_class_index);
1101  vnet_device_class_t *dev_class =
1103  clib_error_t *error = 0;
1104 
1105  /* New class equals old class? Nothing to do. */
1106  if (hi->hw_class_index == hw_class_index)
1107  return 0;
1108 
1109  /* No need (and incorrect since admin up flag may be set) to do error checking when
1110  receiving unserialize message. */
1111  if (redistribute)
1112  {
1114  return clib_error_return (0,
1115  "%v must be admin down to change class from %s to %s",
1116  hi->name, old_class->name, new_class->name);
1117 
1118  /* Make sure interface supports given class. */
1119  if ((new_class->is_valid_class_for_interface
1120  && !new_class->is_valid_class_for_interface (vnm, hw_if_index,
1121  hw_class_index))
1122  || (dev_class->is_valid_class_for_interface
1123  && !dev_class->is_valid_class_for_interface (vnm, hw_if_index,
1124  hw_class_index)))
1125  return clib_error_return (0,
1126  "%v class cannot be changed from %s to %s",
1127  hi->name, old_class->name, new_class->name);
1128 
1129  }
1130 
1131  if (old_class->hw_class_change)
1132  old_class->hw_class_change (vnm, hw_if_index, old_class->index,
1133  new_class->index);
1134 
1135  vnet_hw_interface_init_for_class (vnm, hw_if_index, new_class->index,
1136  /* instance */ ~0);
1137 
1138  if (new_class->hw_class_change)
1139  new_class->hw_class_change (vnm, hw_if_index, old_class->index,
1140  new_class->index);
1141 
1142  if (dev_class->hw_class_change)
1143  dev_class->hw_class_change (vnm, hw_if_index, new_class->index);
1144 
1145  return error;
1146 }
1147 
1148 clib_error_t *
1150  u32 hw_class_index)
1151 {
1152  return vnet_hw_interface_set_class_helper (vnm, hw_if_index, hw_class_index,
1153  /* redistribute */ 1);
1154 }
1155 
1156 static int
1158  u32 hw_if_index,
1159  u32 node_index,
1160  u32 redistribute)
1161 {
1162  vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1164  (vnm, hi->dev_class_index);
1165 
1166  if (dev_class->rx_redirect_to_node)
1167  {
1168  dev_class->rx_redirect_to_node (vnm, hw_if_index, node_index);
1169  return 0;
1170  }
1171 
1172  return VNET_API_ERROR_UNIMPLEMENTED;
1173 }
1174 
1175 int
1177  u32 node_index)
1178 {
1179  return vnet_hw_interface_rx_redirect_to_node_helper (vnm, hw_if_index,
1180  node_index,
1181  1 /* redistribute */ );
1182 }
1183 
1184 word
1186  uword sw_if_index0, uword sw_if_index1)
1187 {
1188  vnet_sw_interface_t *sup0 = vnet_get_sup_sw_interface (vnm, sw_if_index0);
1189  vnet_sw_interface_t *sup1 = vnet_get_sup_sw_interface (vnm, sw_if_index1);
1192 
1193  if (h0 != h1)
1194  return vec_cmp (h0->name, h1->name);
1195  return (word) h0->hw_instance - (word) h1->hw_instance;
1196 }
1197 
1198 word
1200  uword hw_if_index0, uword hw_if_index1)
1201 {
1202  vnet_hw_interface_t *h0 = vnet_get_hw_interface (vnm, hw_if_index0);
1203  vnet_hw_interface_t *h1 = vnet_get_hw_interface (vnm, hw_if_index1);
1204 
1205  if (h0 != h1)
1206  return vec_cmp (h0->name, h1->name);
1207  return (word) h0->hw_instance - (word) h1->hw_instance;
1208 }
1209 
1210 int
1212 {
1213  vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index);
1214  if ((si->type == VNET_SW_INTERFACE_TYPE_P2P) ||
1216  return 1;
1217 
1218  vnet_hw_interface_t *hw = vnet_get_sup_hw_interface (vnm, sw_if_index);
1221 
1222  return (hc->flags & VNET_HW_INTERFACE_CLASS_FLAG_P2P);
1223 }
1224 
1225 clib_error_t *
1227 {
1228  vnet_main_t *vnm = vnet_get_main ();
1230  vlib_buffer_t *b = 0;
1231  vnet_buffer_opaque_t *o = 0;
1232  clib_error_t *error;
1233 
1234  /*
1235  * Keep people from shooting themselves in the foot.
1236  */
1237  if (sizeof (b->opaque) != sizeof (vnet_buffer_opaque_t))
1238  {
1239 #define _(a) if (sizeof(o->a) > sizeof (o->unused)) \
1240  clib_warning \
1241  ("FATAL: size of opaque union subtype %s is %d (max %d)", \
1242  #a, sizeof(o->a), sizeof (o->unused));
1244 #undef _
1245 
1246  return clib_error_return
1247  (0, "FATAL: size of vlib buffer opaque %d, size of vnet opaque %d",
1248  sizeof (b->opaque), sizeof (vnet_buffer_opaque_t));
1249  }
1250 
1253  im->sw_if_counter_lock[0] = 1; /* should be no need */
1254 
1256 #define _(E,n,p) \
1257  im->sw_if_counters[VNET_INTERFACE_COUNTER_##E].name = #n; \
1258  im->sw_if_counters[VNET_INTERFACE_COUNTER_##E].stat_segment_name = "/" #p "/" #n;
1260 #undef _
1263 #define _(E,n,p) \
1264  im->combined_sw_if_counters[VNET_INTERFACE_COUNTER_##E].name = #n; \
1265  im->combined_sw_if_counters[VNET_INTERFACE_COUNTER_##E].stat_segment_name = "/" #p "/" #n;
1267 #undef _
1268  im->sw_if_counter_lock[0] = 0;
1269 
1270  im->device_class_by_name = hash_create_string ( /* size */ 0,
1271  sizeof (uword));
1272  {
1274 
1275  c = vnm->device_class_registrations;
1276 
1277  while (c)
1278  {
1279  c->index = vec_len (im->device_classes);
1280  hash_set_mem (im->device_class_by_name, c->name, c->index);
1281 
1282  if (c->tx_fn_registrations)
1283  {
1284  vlib_node_fn_registration_t *fnr = c->tx_fn_registrations;
1285  int priority = -1;
1286 
1287  /* to avoid confusion, please remove ".tx_function" statement
1288  from VNET_DEVICE_CLASS() if using function candidates */
1289  ASSERT (c->tx_function == 0);
1290 
1291  while (fnr)
1292  {
1293  if (fnr->priority > priority)
1294  {
1295  priority = fnr->priority;
1296  c->tx_function = fnr->function;
1297  }
1298  fnr = fnr->next_registration;
1299  }
1300  }
1301 
1302  vec_add1 (im->device_classes, c[0]);
1303  c = c->next_class_registration;
1304  }
1305  }
1306 
1307  im->hw_interface_class_by_name = hash_create_string ( /* size */ 0,
1308  sizeof (uword));
1309 
1310  im->sw_if_index_by_sup_and_sub = hash_create_mem (0, sizeof (u64),
1311  sizeof (uword));
1312  {
1314 
1316 
1317  while (c)
1318  {
1319  c->index = vec_len (im->hw_interface_classes);
1320  hash_set_mem (im->hw_interface_class_by_name, c->name, c->index);
1321 
1322  if (NULL == c->build_rewrite)
1323  c->build_rewrite = default_build_rewrite;
1324  if (NULL == c->update_adjacency)
1325  c->update_adjacency = default_update_adjacency;
1326 
1327  vec_add1 (im->hw_interface_classes, c[0]);
1328  c = c->next_class_registration;
1329  }
1330  }
1331 
1332  im->gso_interface_count = 0;
1333  /* init per-thread data */
1336 
1338  return error;
1339 
1340  vnm->interface_tag_by_sw_if_index = hash_create (0, sizeof (uword));
1341 
1342 #if VLIB_BUFFER_TRACE_TRAJECTORY > 0
1343  if ((error = vlib_call_init_function (vm, trajectory_trace_init)))
1344  return error;
1345 #endif
1346 
1347  return 0;
1348 }
1349 
1351 
1352 /* Kludge to renumber interface names [only!] */
1353 int
1355 {
1356  int rv;
1357  vnet_main_t *vnm = vnet_get_main ();
1359  vnet_hw_interface_t *hi = vnet_get_sup_hw_interface (vnm, sw_if_index);
1360 
1362  (vnm, hi->dev_class_index);
1363 
1364  if (dev_class->name_renumber == 0 || dev_class->format_device_name == 0)
1365  return VNET_API_ERROR_UNIMPLEMENTED;
1366 
1367  rv = dev_class->name_renumber (hi, new_show_dev_instance);
1368 
1369  if (rv)
1370  return rv;
1371 
1373  vec_free (hi->name);
1374  /* Use the mapping we set up to call it Ishmael */
1375  hi->name = format (0, "%U", dev_class->format_device_name,
1376  hi->dev_instance);
1377 
1379  return rv;
1380 }
1381 
1382 clib_error_t *
1383 vnet_rename_interface (vnet_main_t * vnm, u32 hw_if_index, char *new_name)
1384 {
1386  vlib_main_t *vm = vnm->vlib_main;
1387  vnet_hw_interface_t *hw;
1388  u8 *old_name;
1389  clib_error_t *error = 0;
1390 
1391  hw = vnet_get_hw_interface (vnm, hw_if_index);
1392  if (!hw)
1393  {
1394  return clib_error_return (0,
1395  "unable to find hw interface for index %u",
1396  hw_if_index);
1397  }
1398 
1399  old_name = hw->name;
1400 
1401  /* set new hw->name */
1402  hw->name = format (0, "%s", new_name);
1403 
1404  /* remove the old name to hw_if_index mapping and install the new one */
1405  hash_unset_mem (im->hw_interface_by_name, old_name);
1406  hash_set_mem (im->hw_interface_by_name, hw->name, hw_if_index);
1407 
1408  /* rename tx/output nodes */
1409  vlib_node_rename (vm, hw->tx_node_index, "%v-tx", hw->name);
1410  vlib_node_rename (vm, hw->output_node_index, "%v-output", hw->name);
1411 
1412  /* free the old name vector */
1413  vec_free (old_name);
1414 
1415  return error;
1416 }
1417 
1418 static clib_error_t *
1420  u32 hw_if_index,
1421  const u8 * mac_address)
1422 {
1423  clib_error_t *error = 0;
1424  vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1425 
1426  if (hi->hw_address)
1427  {
1428  u8 *old_address = vec_dup (hi->hw_address);
1429  vnet_device_class_t *dev_class =
1431  if (dev_class->mac_addr_change_function)
1432  {
1433  error =
1434  dev_class->mac_addr_change_function (hi, old_address,
1435  mac_address);
1436  }
1437  if (!error)
1438  {
1439  vnet_hw_interface_class_t *hw_class;
1440 
1441  hw_class = vnet_get_hw_interface_class (vnm, hi->hw_class_index);
1442 
1443  if (NULL != hw_class->mac_addr_change_function)
1444  hw_class->mac_addr_change_function (hi, old_address, mac_address);
1445  }
1446  else
1447  {
1448  error =
1449  clib_error_return (0,
1450  "MAC Address Change is not supported on this interface");
1451  }
1452  vec_free (old_address);
1453  }
1454  else
1455  {
1456  error =
1457  clib_error_return (0,
1458  "mac address change is not supported for interface index %u",
1459  hw_if_index);
1460  }
1461  return error;
1462 }
1463 
1464 clib_error_t *
1466  const u8 * mac_address)
1467 {
1469  (vnm, hw_if_index, mac_address);
1470 }
1471 
1472 /* update the unnumbered state of an interface*/
1473 void
1475  u32 ip_sw_if_index, u8 enable)
1476 {
1477  vnet_main_t *vnm = vnet_get_main ();
1478  vnet_sw_interface_t *si;
1479  u32 was_unnum;
1480 
1481  si = vnet_get_sw_interface (vnm, unnumbered_sw_if_index);
1482  was_unnum = (si->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED);
1483 
1484  if (enable)
1485  {
1487  si->unnumbered_sw_if_index = ip_sw_if_index;
1488 
1490  [unnumbered_sw_if_index] =
1491  ip4_main.
1492  lookup_main.if_address_pool_index_by_sw_if_index[ip_sw_if_index];
1493  ip6_main.
1494  lookup_main.if_address_pool_index_by_sw_if_index
1495  [unnumbered_sw_if_index] =
1496  ip6_main.
1497  lookup_main.if_address_pool_index_by_sw_if_index[ip_sw_if_index];
1498  }
1499  else
1500  {
1502  si->unnumbered_sw_if_index = (u32) ~ 0;
1503 
1505  [unnumbered_sw_if_index] = ~0;
1507  [unnumbered_sw_if_index] = ~0;
1508  }
1509 
1510  if (was_unnum != (si->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED))
1511  {
1512  ip4_sw_interface_enable_disable (unnumbered_sw_if_index, enable);
1513  ip6_sw_interface_enable_disable (unnumbered_sw_if_index, enable);
1514  }
1515 }
1516 
1519 {
1520  switch (link)
1521  {
1522  case VNET_LINK_IP4:
1523  return (VNET_L3_PACKET_TYPE_IP4);
1524  case VNET_LINK_IP6:
1525  return (VNET_L3_PACKET_TYPE_IP6);
1526  case VNET_LINK_MPLS:
1527  return (VNET_L3_PACKET_TYPE_MPLS);
1528  case VNET_LINK_ARP:
1529  return (VNET_L3_PACKET_TYPE_ARP);
1530  case VNET_LINK_ETHERNET:
1531  case VNET_LINK_NSH:
1532  ASSERT (0);
1533  break;
1534  }
1535  ASSERT (0);
1536  return (0);
1537 }
1538 
1539 vnet_mtu_t
1541 {
1542  switch (link)
1543  {
1544  case VNET_LINK_IP4:
1545  return (VNET_MTU_IP4);
1546  case VNET_LINK_IP6:
1547  return (VNET_MTU_IP6);
1548  case VNET_LINK_MPLS:
1549  return (VNET_MTU_MPLS);
1550  default:
1551  return (VNET_MTU_L3);
1552  }
1553 }
1554 
1555 u8 *
1557  u32 sw_if_index,
1558  vnet_link_t link_type, const void *dst_address)
1559 {
1560  return (NULL);
1561 }
1562 
1563 void
1565 {
1566  ip_adjacency_t *adj;
1567 
1568  adj = adj_get (ai);
1569 
1570  switch (adj->lookup_next_index)
1571  {
1572  case IP_LOOKUP_NEXT_GLEAN:
1574  break;
1575  case IP_LOOKUP_NEXT_ARP:
1576  case IP_LOOKUP_NEXT_BCAST:
1577  /*
1578  * default rewrite in neighbour adj
1579  */
1581  (ai,
1584  sw_if_index,
1585  adj_get_link_type (ai), NULL));
1586  break;
1587  case IP_LOOKUP_NEXT_MCAST:
1588  /*
1589  * mcast traffic also uses default rewrite string with no mcast
1590  * switch time updates.
1591  */
1593  (ai,
1595  sw_if_index,
1596  adj_get_link_type (ai),
1597  NULL), 0);
1598  break;
1599  case IP_LOOKUP_NEXT_DROP:
1600  case IP_LOOKUP_NEXT_PUNT:
1601  case IP_LOOKUP_NEXT_LOCAL:
1606  case IP_LOOKUP_N_NEXT:
1607  ASSERT (0);
1608  break;
1609  }
1610 }
1611 
1613 
1614 void
1616 {
1618 }
1619 
1620 void
1622 {
1624 }
1625 
1626 static clib_error_t *
1628  unformat_input_t * input,
1629  vlib_cli_command_t * cmd)
1630 {
1631  unformat_input_t _line_input, *line_input = &_line_input;
1632  clib_error_t *error = NULL;
1633 
1634  /* Get a line of input. */
1635  if (!unformat_user (input, unformat_line_input, line_input))
1636  return clib_error_return (0, "expected enable | disable");
1637 
1638  while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1639  {
1640  if (unformat (line_input, "enable") || unformat (line_input, "on"))
1642  else if (unformat (line_input, "disable")
1643  || unformat (line_input, "off"))
1645  else
1646  {
1647  error = clib_error_return (0, "unknown input `%U'",
1648  format_unformat_error, line_input);
1649  goto done;
1650  }
1651  }
1652 
1653 done:
1654  unformat_free (line_input);
1655  return error;
1656 }
1657 
1658 /* *INDENT-OFF* */
1659 VLIB_CLI_COMMAND (collect_detailed_interface_stats_command, static) = {
1660  .path = "interface collect detailed-stats",
1661  .short_help = "interface collect detailed-stats <enable|disable>",
1663 };
1664 /* *INDENT-ON* */
1665 
1666 /*
1667  * fd.io coding-style-patch-verification: ON
1668  *
1669  * Local Variables:
1670  * eval: (c-set-style "gnu")
1671  * End:
1672  */
u32 * next_nodes
Definition: node.h:333
vnet_config_main_t config_main
Definition: feature.h:82
#define vec_validate(V, I)
Make sure vector is long enough for given index (no header, unspecified alignment) ...
Definition: vec.h:439
void serialize_vnet_interface_state(serialize_main_t *m, va_list *va)
Definition: interface.c:124
u32 sw_if_index
Definition: ipsec_gre.api:37
vmrglw vmrglh hi
l2_input_config_t * configs
Definition: l2_input.h:61
u32 flags
Definition: vhost_user.h:115
vnet_interface_per_thread_data_t * per_thread_data
Definition: interface.h:837
static clib_error_t * vnet_hw_interface_set_class_helper(vnet_main_t *vnm, u32 hw_if_index, u32 hw_class_index, u32 redistribute)
Definition: interface.c:1092
void vnet_sw_interface_ip_directed_broadcast(vnet_main_t *vnm, u32 sw_if_index, u8 enable)
Definition: interface.c:675
void vlib_validate_combined_counter(vlib_combined_counter_main_t *cm, u32 index)
validate a combined counter
Definition: counter.c:106
volatile u32 * sw_if_counter_lock
Definition: interface.h:822
vnet_hw_interface_nodes_t * deleted_hw_interface_nodes
Definition: interface.h:826
_vnet_interface_function_list_elt_t * hw_interface_link_up_down_functions[VNET_ITF_FUNC_N_PRIO]
Definition: vnet.h:64
#define vec_serialize(m, v, f)
Definition: serialize.h:371
An indication that the rewrite is complete, i.e.
Definition: adj_nbr.h:98
vnet_main_t * vnet_get_main(void)
Definition: misc.c:47
static vnet_hw_interface_t * vnet_get_sup_hw_interface(vnet_main_t *vnm, u32 sw_if_index)
vnet_interface_main_t interface_main
Definition: vnet.h:56
uword vlib_node_add_named_next_with_slot(vlib_main_t *vm, uword node, char *name, uword slot)
Definition: node.c:262
unsigned long u64
Definition: types.h:89
int vnet_hw_interface_rx_redirect_to_node(vnet_main_t *vnm, u32 hw_if_index, u32 node_index)
Definition: interface.c:1176
Multicast Adjacency.
Definition: adj.h:82
void vnet_hw_interface_walk_sw(vnet_main_t *vnm, u32 hw_if_index, vnet_hw_sw_interface_walk_t fn, void *ctx)
Walk the SW interfaces on a HW interface - this is the super interface and any sub-interfaces.
Definition: interface.c:1020
vnet_link_t adj_get_link_type(adj_index_t ai)
Return the link type of the adjacency.
Definition: adj.c:468
#define NULL
Definition: clib.h:58
static clib_error_t * call_elf_section_interface_callbacks(vnet_main_t *vnm, u32 if_index, u32 flags, _vnet_interface_function_list_elt_t **elts)
Definition: interface.c:229
walk_rc_t(* vnet_hw_interface_walk_t)(vnet_main_t *vnm, u32 hw_if_index, void *ctx)
Call back walk type for walking all HW indices.
#define vec_unserialize(m, v, f)
Definition: serialize.h:374
Broadcasr Adjacency.
Definition: adj.h:85
IP unicast adjacency.
Definition: adj.h:221
format_function_t * format_trace
Definition: node.h:360
vnet_device_class_t * device_class_registrations
Definition: vnet.h:59
u32 * input_node_thread_index_by_queue
Definition: interface.h:559
static vnet_hw_interface_t * vnet_get_hw_interface(vnet_main_t *vnm, u32 hw_if_index)
This packet is to be rewritten and forwarded to the next processing node.
Definition: adj.h:73
#define vec_add1(V, E)
Add 1 element to end of vector (unspecified alignment).
Definition: vec.h:522
word vnet_sw_interface_compare(vnet_main_t *vnm, uword sw_if_index0, uword sw_if_index1)
Definition: interface.c:1185
int vnet_interface_name_renumber(u32 sw_if_index, u32 new_show_dev_instance)
Definition: interface.c:1354
static void vnet_clear_sw_interface_tag(vnet_main_t *vnm, u32 sw_if_index)
#define vec_add2(V, P, N)
Add N elements to end of vector V, return pointer to new elements in P.
Definition: vec.h:560
int i
uword unformat_user(unformat_input_t *input, unformat_function_t *func,...)
Definition: unformat.c:983
#define hash_set_mem(h, key, value)
Definition: hash.h:275
clib_memset(h->entries, 0, sizeof(h->entries[0])*entries)
ip_lookup_main_t lookup_main
Definition: ip4.h:98
static vnet_sw_interface_t * vnet_get_sw_interface(vnet_main_t *vnm, u32 sw_if_index)
uword * sub_interface_sw_if_index_by_id
Definition: interface.h:542
u8 * format(u8 *s, const char *fmt,...)
Definition: format.c:424
uword * interface_tag_by_sw_if_index
Definition: vnet.h:72
#define vec_validate_aligned(V, I, A)
Make sure vector is long enough for given index (no header, specified alignment)
Definition: vec.h:450
_vnet_interface_function_list_elt_t * hw_interface_add_del_functions[VNET_ITF_FUNC_N_PRIO]
Definition: vnet.h:62
struct _vnet_device_class vnet_device_class_t
#define pool_get(P, E)
Allocate an object E from a pool P (unspecified alignment).
Definition: pool.h:236
uword * dq_runtime_index_by_queue
Definition: interface.h:566
unsigned char u8
Definition: types.h:56
enum vnet_sw_interface_flags_t_ vnet_sw_interface_flags_t
#define VNET_HW_INTERFACE_FLAG_DUPLEX_MASK
Definition: interface.h:482
static clib_error_t * collect_detailed_interface_stats_cli(vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
Definition: interface.c:1627
vlib_node_function_t * function
Definition: node.h:260
void vlib_register_errors(vlib_main_t *vm, u32 node_index, u32 n_errors, char *error_strings[])
Definition: error.c:128
static void unserialize_vec_vnet_sw_hw_interface_state(serialize_main_t *m, va_list *va)
Definition: interface.c:97
Adjacency to punt this packet.
Definition: adj.h:55
enum walk_rc_t_ walk_rc_t
Walk return code.
void adj_glean_update_rewrite(adj_index_t adj_index)
adj_glean_update_rewrite
Definition: adj_glean.c:101
static ip_adjacency_t * adj_get(adj_index_t adj_index)
Get a pointer to an adjacency object from its index.
Definition: adj.h:433
void default_update_adjacency(vnet_main_t *vnm, u32 sw_if_index, u32 ai)
Default adjacency update function.
Definition: interface.c:1564
enum vnet_interface_helper_flags_t_ vnet_interface_helper_flags_t
vnet_l3_packet_type_t
Definition: l3_types.h:44
i64 word
Definition: types.h:111
#define pool_foreach(VAR, POOL, BODY)
Iterate through pool.
Definition: pool.h:493
vlib_node_function_t * function
Node function to call.
Definition: node.h:467
#define VLIB_INIT_FUNCTION(x)
Definition: init.h:163
static u32 vnet_create_sw_interface_no_callbacks(vnet_main_t *vnm, vnet_sw_interface_t *template)
Definition: interface.c:522
static clib_error_t * vnet_hw_interface_set_flags_helper(vnet_main_t *vnm, u32 hw_if_index, vnet_hw_interface_flags_t flags, vnet_interface_helper_flags_t helper_flags)
Definition: interface.c:294
u32 output_sw_if_index
Definition: l2_input.h:35
static vnet_device_class_t * vnet_get_device_class(vnet_main_t *vnm, u32 dev_class_index)
static clib_error_t * vnet_hw_interface_change_mac_address_helper(vnet_main_t *vnm, u32 hw_if_index, const u8 *mac_address)
Definition: interface.c:1419
vlib_combined_counter_main_t * combined_sw_if_counters
Definition: interface.h:824
enum vnet_hw_interface_flags_t_ vnet_hw_interface_flags_t
vnet_hw_interface_flags_t flags
Definition: interface.h:494
#define hash_foreach(key_var, value_var, h, body)
Definition: hash.h:442
uword vlib_node_add_next_with_slot(vlib_main_t *vm, uword node_index, uword next_node_index, uword slot)
Definition: node.c:205
#define vec_elt_at_index(v, i)
Get vector value at index i checking that i is in bounds.
static vnet_sw_interface_t * vnet_get_sup_sw_interface(vnet_main_t *vnm, u32 sw_if_index)
static clib_error_t * call_hw_interface_add_del_callbacks(vnet_main_t *vnm, u32 hw_if_index, u32 is_create)
Definition: interface.c:255
#define clib_error_return(e, args...)
Definition: error.h:99
static walk_rc_t sw_interface_walk_callback(vnet_main_t *vnm, u32 sw_if_index, void *ctx)
Definition: interface.c:694
struct _vlib_node_fn_registration vlib_node_fn_registration_t
u32 mtu[VNET_N_MTU]
Definition: interface.h:701
unsigned int u32
Definition: types.h:88
#define vec_end(v)
End (last data address) of vector.
uword vnet_interface_output_node(vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
#define vlib_call_init_function(vm, x)
Definition: init.h:260
u32 vnet_register_interface(vnet_main_t *vnm, u32 dev_class_index, u32 dev_instance, u32 hw_class_index, u32 hw_instance)
Definition: interface.c:740
void ip4_directed_broadcast(u32 sw_if_index, u8 enable)
Definition: ip4_forward.c:670
#define hash_create_string(elts, value_bytes)
Definition: hash.h:690
void vnet_sw_interface_set_protocol_mtu(vnet_main_t *vnm, u32 sw_if_index, u32 mtu[])
Definition: interface.c:654
unformat_function_t unformat_line_input
Definition: format.h:282
uword * hw_interface_by_name
Definition: interface.h:804
vnet_hw_interface_t * hw_interfaces
Definition: interface.h:801
#define hash_create_mem(elts, key_bytes, value_bytes)
Definition: hash.h:661
format_function_t format_vnet_sw_interface_name
void adj_mcast_update_rewrite(adj_index_t adj_index, u8 *rewrite, u8 offset)
adj_mcast_update_rewrite
Definition: adj_mcast.c:102
#define pool_elt_at_index(p, i)
Returns pointer to element at given index.
Definition: pool.h:514
static void vlib_zero_combined_counter(vlib_combined_counter_main_t *cm, u32 index)
Clear a combined counter Clears the set of per-thread counters.
Definition: counter.h:285
u8 * format_vnet_interface_output_trace(u8 *s, va_list *va)
#define hash_unset_mem(h, key)
Definition: hash.h:291
void ip4_sw_interface_enable_disable(u32 sw_if_index, u32 is_enable)
Definition: ip4_forward.c:525
u32 * start_node_indices
Definition: config.h:98
vlib_main_t * vlib_main
Definition: vnet.h:80
void vnet_sw_interface_walk(vnet_main_t *vnm, vnet_sw_interface_walk_t fn, void *ctx)
Walk all the SW interfaces in the system.
Definition: interface.c:1061
int vnet_sw_interface_is_p2p(vnet_main_t *vnm, u32 sw_if_index)
Definition: interface.c:1211
long ctx[MAX_CONNS]
Definition: main.c:144
struct _unformat_input_t unformat_input_t
vnet_mtu_t
Definition: interface.h:639
#define hash_free(h)
Definition: hash.h:310
#define pool_put(P, E)
Free an object E in pool P.
Definition: pool.h:286
#define vec_dup(V)
Return copy of vector (no header, no alignment)
Definition: vec.h:375
static void serialize_vec_vnet_sw_hw_interface_state(serialize_main_t *m, va_list *va)
Definition: interface.c:82
uword * sw_if_index_by_sup_and_sub
Definition: interface.h:818
static void * vlib_node_get_runtime_data(vlib_main_t *vm, u32 node_index)
Get node runtime private data by node index.
Definition: node_funcs.h:110
This packet matches an "interface route" and packets need to be passed to ARP to find rewrite string ...
Definition: adj.h:68
vnet_sw_interface_flags_t flags
Definition: interface.h:684
u8 * vnet_build_rewrite_for_sw_interface(vnet_main_t *vnm, u32 sw_if_index, vnet_link_t link_type, const void *dst_address)
Definition: rewrite.c:190
vlib_simple_counter_main_t * sw_if_counters
Definition: interface.h:823
word vnet_hw_interface_compare(vnet_main_t *vnm, uword hw_if_index0, uword hw_if_index1)
Definition: interface.c:1199
format_function_t * format_buffer
Definition: node.h:356
void vnet_sw_interface_update_unnumbered(u32 unnumbered_sw_if_index, u32 ip_sw_if_index, u8 enable)
Definition: interface.c:1474
#define foreach_vlib_main(body)
Definition: threads.h:235
uword * hw_interface_class_by_name
Definition: interface.h:811
i32 priority
Definition: ipsec.api:91
#define foreach_simple_interface_counter_name
Definition: interface.h:747
void unserialize_vnet_interface_state(serialize_main_t *m, va_list *va)
Definition: interface.c:186
clib_error_t * vnet_rename_interface(vnet_main_t *vnm, u32 hw_if_index, char *new_name)
Definition: interface.c:1383
This packet matches an "incomplete adjacency" and packets need to be passed to ARP to find rewrite st...
Definition: adj.h:63
Adjacency to drop this packet.
Definition: adj.h:53
#define UNFORMAT_END_OF_INPUT
Definition: format.h:144
#define foreach_combined_interface_counter_name
Definition: interface.h:758
svmdb_client_t * c
vlib_main_t * vm
Definition: buffer.c:312
#define vec_free(V)
Free vector&#39;s memory (no header).
Definition: vec.h:341
Multicast Midchain Adjacency.
Definition: adj.h:89
static vlib_node_runtime_t * vlib_node_get_runtime(vlib_main_t *vm, u32 node_index)
Get node runtime by node index.
Definition: node_funcs.h:89
static vnet_hw_interface_flags_t vnet_sw_interface_flags_to_hw(vnet_sw_interface_flags_t swf)
Definition: interface.c:175
unformat_function_t * unformat_buffer
Definition: node.h:357
static void vnet_interface_counter_unlock(vnet_interface_main_t *im)
Definition: interface.h:855
#define ETHERNET_INTERFACE_FLAG_MTU
Definition: ethernet.h:146
static void unserialize_integer(serialize_main_t *m, void *x, u32 n_bytes)
Definition: serialize.h:201
static void serialize_integer(serialize_main_t *m, u64 x, u32 n_bytes)
Definition: serialize.h:185
static clib_error_t * call_sw_interface_add_del_callbacks(vnet_main_t *vnm, u32 sw_if_index, u32 is_create)
Definition: interface.c:283
void vnet_hw_interface_init_for_class(vnet_main_t *vnm, u32 hw_if_index, u32 hw_class_index, u32 hw_instance)
Definition: interface.c:1079
#define ARRAY_LEN(x)
Definition: clib.h:62
static void setup_output_node(vlib_main_t *vm, u32 node_index, vnet_hw_interface_class_t *hw_class)
Definition: interface.c:730
u8 * default_build_rewrite(vnet_main_t *vnm, u32 sw_if_index, vnet_link_t link_type, const void *dst_address)
Return a complete, zero-length (aka dummy) rewrite.
Definition: interface.c:1556
format_function_t format_vnet_sw_interface_flags
#define VLIB_CLI_COMMAND(x,...)
Definition: cli.h:155
#define VNET_INTERFACE_SET_FLAGS_HELPER_IS_CREATE
Definition: interface.c:290
This packets follow a mid-chain adjacency.
Definition: adj.h:76
u32 * if_address_pool_index_by_sw_if_index
Head of doubly linked list of interface addresses for each software interface.
Definition: lookup.h:132
static void vnet_interface_counter_lock(vnet_interface_main_t *im)
Definition: interface.h:847
void vlib_validate_simple_counter(vlib_simple_counter_main_t *cm, u32 index)
validate a simple counter
Definition: counter.c:91
#define hash_create(elts, value_bytes)
Definition: hash.h:696
enum vnet_interface_function_priority_t_ vnet_interface_function_priority_t
#define ASSERT(truth)
_vnet_interface_function_list_elt_t * sw_interface_mtu_change_functions[VNET_ITF_FUNC_N_PRIO]
Definition: vnet.h:70
void collect_detailed_interface_stats_flag_clear(void)
Definition: interface.c:1621
void vlib_node_rename(vlib_main_t *vm, u32 node_index, char *fmt,...)
Definition: node.c:102
ip6_main_t ip6_main
Definition: ip6_forward.c:2680
ip_lookup_main_t lookup_main
Definition: ip6.h:179
static void setup_tx_node(vlib_main_t *vm, u32 node_index, vnet_device_class_t *dev_class)
Definition: interface.c:716
enum vnet_link_t_ vnet_link_t
Link Type: A description of the protocol of packets on the link.
u32 vlib_register_node(vlib_main_t *vm, vlib_node_registration_t *r)
Definition: node.c:520
u32 set_int_l2_mode(vlib_main_t *vm, vnet_main_t *vnet_main, u32 mode, u32 sw_if_index, u32 bd_index, l2_bd_port_type_t port_type, u32 shg, u32 xc_sw_if_index)
Set the subinterface to run in l2 or l3 mode.
Definition: l2_input.c:589
static vnet_hw_interface_class_t * vnet_get_hw_interface_class(vnet_main_t *vnm, u32 hw_class_index)
static void vlib_zero_simple_counter(vlib_simple_counter_main_t *cm, u32 index)
Clear a simple counter Clears the set of per-thread u16 counters, and the u64 counter.
Definition: counter.h:139
#define vec_cmp(v1, v2)
Compare two vectors (only applicable to vectors of signed numbers).
Definition: vec.h:919
walk_rc_t(* vnet_hw_sw_interface_walk_t)(vnet_main_t *vnm, u32 sw_if_index, void *ctx)
Call back walk type for walking SW indices on a HW interface.
u8 mac_address[6]
uword * device_class_by_name
Definition: interface.h:812
static vlib_main_t * vlib_get_main(void)
Definition: global_funcs.h:23
void vnet_delete_hw_interface(vnet_main_t *vnm, u32 hw_if_index)
Definition: interface.c:951
int collect_detailed_interface_stats_flag
Definition: interface.c:1612
struct _vlib_node_registration vlib_node_registration_t
This packets needs to go to ICMP error.
Definition: adj.h:79
This packet is for one of our own IP addresses.
Definition: adj.h:58
void vnet_hw_interface_set_mtu(vnet_main_t *vnm, u32 hw_if_index, u32 mtu)
Definition: interface.c:702
l2input_main_t l2input_main
Definition: l2_input.c:128
#define hash_create_vec(elts, key_bytes, value_bytes)
Definition: hash.h:668
void vnet_hw_interface_walk(vnet_main_t *vnm, vnet_hw_interface_walk_t fn, void *ctx)
Walk all the HW interface.
Definition: interface.c:1043
struct _vnet_hw_interface_class vnet_hw_interface_class_t
#define vec_len(v)
Number of elements in vector (rvalue-only, NULL tolerant)
clib_error_t * vnet_interface_init(vlib_main_t *vm)
Definition: interface.c:1226
ip_lookup_next_t lookup_next_index
Next hop after ip4-lookup.
Definition: adj.h:236
static clib_error_t * vnet_sw_interface_set_flags_helper(vnet_main_t *vnm, u32 sw_if_index, vnet_sw_interface_flags_t flags, vnet_interface_helper_flags_t helper_flags)
Definition: interface.c:343
clib_error_t * vnet_hw_interface_set_flags(vnet_main_t *vnm, u32 hw_if_index, vnet_hw_interface_flags_t flags)
Definition: interface.c:504
vnet_l3_packet_type_t vnet_link_to_l3_proto(vnet_link_t link)
Convert a link to to an Ethertype.
Definition: interface.c:1518
static clib_error_t * vnet_interface_cli_init(vlib_main_t *vm)
VLIB buffer representation.
Definition: buffer.h:102
vnet_mtu_t vnet_link_to_mtu(vnet_link_t link)
Definition: interface.c:1540
u64 uword
Definition: types.h:112
static void unformat_free(unformat_input_t *i)
Definition: format.h:162
void collect_detailed_interface_stats_flag_set(void)
Definition: interface.c:1615
static int vnet_hw_interface_rx_redirect_to_node_helper(vnet_main_t *vnm, u32 hw_if_index, u32 node_index, u32 redistribute)
Definition: interface.c:1157
vnet_sw_interface_t * sw_interfaces
Definition: interface.h:815
vnet_hw_interface_class_t * hw_interface_class_registrations
Definition: vnet.h:60
a point 2 point interface
Definition: interface.h:357
u32 ethernet_set_flags(vnet_main_t *vnm, u32 hw_if_index, u32 flags)
Definition: interface.c:372
vnet_hw_interface_class_t * hw_interface_classes
Definition: interface.h:807
void vnet_sw_interface_set_mtu(vnet_main_t *vnm, u32 sw_if_index, u32 mtu)
Definition: interface.c:642
walk_rc_t(* vnet_sw_interface_walk_t)(vnet_main_t *vnm, vnet_sw_interface_t *si, void *ctx)
Call back walk type for walking SW indices on a HW interface.
_vnet_interface_function_list_elt_t * sw_interface_add_del_functions[VNET_ITF_FUNC_N_PRIO]
Definition: vnet.h:66
static void * clib_mem_alloc_aligned(uword size, uword align)
Definition: mem.h:140
u8 * format_unformat_error(u8 *s, va_list *va)
Definition: unformat.c:91
static vnet_sw_interface_flags_t vnet_hw_interface_flags_to_sw(vnet_hw_interface_flags_t hwf)
Definition: interface.c:113
vnet_sw_interface_type_t type
Definition: interface.h:682
ip4_main_t ip4_main
Global ip4 main structure.
Definition: ip4_forward.c:905
clib_error_t * vnet_sw_interface_set_flags(vnet_main_t *vnm, u32 sw_if_index, vnet_sw_interface_flags_t flags)
Definition: interface.c:513
vnet_interface_helper_flags_t_
Definition: interface.c:47
static u32 vlib_num_workers()
Definition: threads.h:366
static vlib_node_t * vlib_get_node(vlib_main_t *vm, u32 i)
Get vlib node by index.
Definition: node_funcs.h:59
#define VLIB_NODE_FLAG_IS_OUTPUT
Definition: node.h:295
#define vec_foreach(var, vec)
Vector iterator.
vnet_hw_interface_rx_mode default_rx_mode
Definition: interface.h:563
void vnet_delete_sw_interface(vnet_main_t *vnm, u32 sw_if_index)
Definition: interface.c:604
vnet_device_class_t * device_classes
Definition: interface.h:808
#define foreach_buffer_opaque_union_subtype
Definition: buffer.h:110
u32 id
Definition: udp.api:45
clib_error_t * vnet_hw_interface_change_mac_address(vnet_main_t *vnm, u32 hw_if_index, const u8 *mac_address)
Definition: interface.c:1465
_vnet_interface_function_list_elt_t * sw_interface_admin_up_down_functions[VNET_ITF_FUNC_N_PRIO]
Definition: vnet.h:68
clib_error_t * vnet_create_sw_interface(vnet_main_t *vnm, vnet_sw_interface_t *template, u32 *sw_if_index)
Definition: interface.c:566
#define CLIB_CACHE_LINE_BYTES
Definition: cache.h:59
static_always_inline vnet_feature_config_main_t * vnet_feature_get_config_main(u16 arc)
Definition: feature.h:234
void adj_nbr_update_rewrite(adj_index_t adj_index, adj_nbr_rewrite_flag_t flags, u8 *rewrite)
adj_nbr_update_rewrite
Definition: adj_nbr.c:298
static clib_error_t * call_sw_interface_mtu_change_callbacks(vnet_main_t *vnm, u32 sw_if_index)
Definition: interface.c:635
#define VNET_INTERFACE_SET_FLAGS_HELPER_WANT_REDISTRIBUTE
Definition: interface.c:291
void ip6_sw_interface_enable_disable(u32 sw_if_index, u32 is_enable)
Definition: ip6_forward.c:146
u32 opaque[10]
Opaque data used by sub-graphs for their own purposes.
Definition: buffer.h:153
uword unformat(unformat_input_t *i, const char *fmt,...)
Definition: unformat.c:972
static uword unformat_check_input(unformat_input_t *i)
Definition: format.h:170
#define MODE_L3
Definition: l2_input.h:210
clib_error_t * vnet_hw_interface_set_class(vnet_main_t *vnm, u32 hw_if_index, u32 hw_class_index)
Definition: interface.c:1149