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:
7 * http://www.apache.org/licenses/LICENSE-2.0
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.
16 * interface.c: VNET interfaces/sub-interfaces
18 * Copyright (c) 2008 Eliot Dresselhaus
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:
28 * The above copyright notice and this permission notice shall be
29 * included in all copies or substantial portions of the Software.
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.
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>
47 #define VNET_INTERFACE_SET_FLAGS_HELPER_IS_CREATE (1 << 0)
48 #define VNET_INTERFACE_SET_FLAGS_HELPER_WANT_REDISTRIBUTE (1 << 1)
50 static clib_error_t *vnet_hw_interface_set_flags_helper (vnet_main_t * vnm,
55 static clib_error_t *vnet_sw_interface_set_flags_helper (vnet_main_t * vnm,
60 static clib_error_t *vnet_hw_interface_set_class_helper (vnet_main_t * vnm,
67 /* Either sw or hw interface index. */
72 } vnet_sw_hw_interface_state_t;
75 serialize_vec_vnet_sw_hw_interface_state (serialize_main_t * m, va_list * va)
77 vnet_sw_hw_interface_state_t *s =
78 va_arg (*va, vnet_sw_hw_interface_state_t *);
79 u32 n = va_arg (*va, u32);
81 for (i = 0; i < n; i++)
83 serialize_integer (m, s[i].sw_hw_if_index,
84 sizeof (s[i].sw_hw_if_index));
85 serialize_integer (m, s[i].flags, sizeof (s[i].flags));
90 unserialize_vec_vnet_sw_hw_interface_state (serialize_main_t * m,
93 vnet_sw_hw_interface_state_t *s =
94 va_arg (*va, vnet_sw_hw_interface_state_t *);
95 u32 n = va_arg (*va, u32);
97 for (i = 0; i < n; i++)
99 unserialize_integer (m, &s[i].sw_hw_if_index,
100 sizeof (s[i].sw_hw_if_index));
101 unserialize_integer (m, &s[i].flags, sizeof (s[i].flags));
106 serialize_vnet_interface_state (serialize_main_t * m, va_list * va)
108 vnet_main_t *vnm = va_arg (*va, vnet_main_t *);
109 vnet_sw_hw_interface_state_t *sts = 0, *st;
110 vnet_sw_interface_t *sif;
111 vnet_hw_interface_t *hif;
112 vnet_interface_main_t *im = &vnm->interface_main;
114 /* Serialize hardware interface classes since they may have changed.
115 Must do this before sending up/down flags. */
117 pool_foreach (hif, im->hw_interfaces, ({
118 vnet_hw_interface_class_t * hw_class = vnet_get_hw_interface_class (vnm, hif->hw_class_index);
119 serialize_cstring (m, hw_class->name);
123 /* Send sw/hw interface state when non-zero. */
125 pool_foreach (sif, im->sw_interfaces, ({
128 vec_add2 (sts, st, 1);
129 st->sw_hw_if_index = sif->sw_if_index;
130 st->flags = sif->flags;
135 vec_serialize (m, sts, serialize_vec_vnet_sw_hw_interface_state);
141 pool_foreach (hif, im->hw_interfaces, ({
144 vec_add2 (sts, st, 1);
145 st->sw_hw_if_index = hif->hw_if_index;
146 st->flags = hif->flags;
151 vec_serialize (m, sts, serialize_vec_vnet_sw_hw_interface_state);
157 unserialize_vnet_interface_state (serialize_main_t * m, va_list * va)
159 vnet_main_t *vnm = va_arg (*va, vnet_main_t *);
160 vnet_sw_hw_interface_state_t *sts = 0, *st;
162 /* First set interface hardware class. */
164 vnet_interface_main_t *im = &vnm->interface_main;
165 vnet_hw_interface_t *hif;
171 pool_foreach (hif, im->hw_interfaces, ({
172 unserialize_cstring (m, &class_name);
173 p = hash_get_mem (im->hw_interface_class_by_name, class_name);
175 error = vnet_hw_interface_set_class_helper (vnm, hif->hw_if_index, p[0], /* redistribute */ 0);
177 clib_error_report (error);
178 vec_free (class_name);
183 vec_unserialize (m, &sts, unserialize_vec_vnet_sw_hw_interface_state);
184 vec_foreach (st, sts)
185 vnet_sw_interface_set_flags_helper (vnm, st->sw_hw_if_index, st->flags,
186 /* no distribute */ 0);
189 vec_unserialize (m, &sts, unserialize_vec_vnet_sw_hw_interface_state);
190 vec_foreach (st, sts)
191 vnet_hw_interface_set_flags_helper (vnm, st->sw_hw_if_index, st->flags,
192 /* no distribute */ 0);
196 static clib_error_t *
197 call_elf_section_interface_callbacks (vnet_main_t * vnm, u32 if_index,
199 _vnet_interface_function_list_elt_t **
202 _vnet_interface_function_list_elt_t *elt;
203 vnet_interface_function_priority_t prio;
204 clib_error_t *error = 0;
206 for (prio = VNET_ITF_FUNC_PRIORITY_LOW;
207 prio <= VNET_ITF_FUNC_PRIORITY_HIGH; prio++)
213 error = elt->fp (vnm, if_index, flags);
216 elt = elt->next_interface_function;
222 static clib_error_t *
223 call_hw_interface_add_del_callbacks (vnet_main_t * vnm, u32 hw_if_index,
226 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
227 vnet_hw_interface_class_t *hw_class =
228 vnet_get_hw_interface_class (vnm, hi->hw_class_index);
229 vnet_device_class_t *dev_class =
230 vnet_get_device_class (vnm, hi->dev_class_index);
231 clib_error_t *error = 0;
233 if (hw_class->interface_add_del_function
235 hw_class->interface_add_del_function (vnm, hw_if_index, is_create)))
238 if (dev_class->interface_add_del_function
240 dev_class->interface_add_del_function (vnm, hw_if_index,
244 error = call_elf_section_interface_callbacks
245 (vnm, hw_if_index, is_create, vnm->hw_interface_add_del_functions);
250 static clib_error_t *
251 call_sw_interface_add_del_callbacks (vnet_main_t * vnm, u32 sw_if_index,
254 return call_elf_section_interface_callbacks
255 (vnm, sw_if_index, is_create, vnm->sw_interface_add_del_functions);
258 #define VNET_INTERFACE_SET_FLAGS_HELPER_IS_CREATE (1 << 0)
259 #define VNET_INTERFACE_SET_FLAGS_HELPER_WANT_REDISTRIBUTE (1 << 1)
261 static clib_error_t *
262 vnet_hw_interface_set_flags_helper (vnet_main_t * vnm, u32 hw_if_index,
263 u32 flags, u32 helper_flags)
265 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
266 vnet_hw_interface_class_t *hw_class =
267 vnet_get_hw_interface_class (vnm, hi->hw_class_index);
269 clib_error_t *error = 0;
271 (helper_flags & VNET_INTERFACE_SET_FLAGS_HELPER_IS_CREATE) != 0;
274 (VNET_HW_INTERFACE_FLAG_LINK_UP | VNET_HW_INTERFACE_FLAG_DUPLEX_MASK |
275 VNET_HW_INTERFACE_FLAG_SPEED_MASK);
278 /* Call hardware interface add/del callbacks. */
280 call_hw_interface_add_del_callbacks (vnm, hw_if_index, is_create);
282 /* Already in the desired state? */
283 if (!is_create && (hi->flags & mask) == flags)
286 if ((hi->flags & VNET_HW_INTERFACE_FLAG_LINK_UP) !=
287 (flags & VNET_HW_INTERFACE_FLAG_LINK_UP))
289 /* Do hardware class (e.g. ethernet). */
290 if (hw_class->link_up_down_function
291 && (error = hw_class->link_up_down_function (vnm, hw_if_index,
295 error = call_elf_section_interface_callbacks
296 (vnm, hw_if_index, flags, vnm->hw_interface_link_up_down_functions);
309 static clib_error_t *
310 vnet_sw_interface_set_flags_helper (vnet_main_t * vnm, u32 sw_if_index,
311 u32 flags, u32 helper_flags)
313 vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index);
315 clib_error_t *error = 0;
317 (helper_flags & VNET_INTERFACE_SET_FLAGS_HELPER_IS_CREATE) != 0;
320 mask = VNET_SW_INTERFACE_FLAG_ADMIN_UP | VNET_SW_INTERFACE_FLAG_PUNT;
326 call_sw_interface_add_del_callbacks (vnm, sw_if_index, is_create);
330 if (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP)
332 /* Notify everyone when the interface is created as admin up */
333 error = call_elf_section_interface_callbacks (vnm, sw_if_index,
336 sw_interface_admin_up_down_functions);
343 vnet_sw_interface_t *si_sup = si;
345 /* Check that super interface is in correct state. */
346 if (si->type == VNET_SW_INTERFACE_TYPE_SUB)
348 si_sup = vnet_get_sw_interface (vnm, si->sup_sw_if_index);
350 /* Check to see if we're bringing down the soft interface and if it's parent is up */
351 if ((flags != (si_sup->flags & mask)) &&
353 && ((si_sup->flags & mask) ==
354 VNET_SW_INTERFACE_FLAG_ADMIN_UP))))
356 error = clib_error_return (0, "super-interface %U must be %U",
357 format_vnet_sw_interface_name, vnm,
359 format_vnet_sw_interface_flags,
365 /* Do not change state for slave link of bonded interfaces */
366 if (si->flags & VNET_SW_INTERFACE_FLAG_BOND_SLAVE)
368 error = clib_error_return
369 (0, "not allowed as %U belong to a BondEthernet interface",
370 format_vnet_sw_interface_name, vnm, si);
374 /* Already in the desired state? */
375 if ((si->flags & mask) == flags)
378 /* Sub-interfaces of hardware interfaces that do no redistribute,
379 do not redistribute themselves. */
380 if (si_sup->type == VNET_SW_INTERFACE_TYPE_HARDWARE)
382 vnet_hw_interface_t *hi =
383 vnet_get_hw_interface (vnm, si_sup->hw_if_index);
384 vnet_device_class_t *dev_class =
385 vnet_get_device_class (vnm, hi->dev_class_index);
386 if (!dev_class->redistribute)
388 ~VNET_INTERFACE_SET_FLAGS_HELPER_WANT_REDISTRIBUTE;
391 /* set the flags now before invoking the registered clients
392 * so that the state they query is consistent with the state here notified */
393 old_flags = si->flags;
396 if ((flags | old_flags) & VNET_SW_INTERFACE_FLAG_ADMIN_UP)
397 error = call_elf_section_interface_callbacks
398 (vnm, sw_if_index, flags,
399 vnm->sw_interface_admin_up_down_functions);
403 /* restore flags on error */
404 si->flags = old_flags;
408 if (si->type == VNET_SW_INTERFACE_TYPE_HARDWARE)
410 vnet_hw_interface_t *hi =
411 vnet_get_hw_interface (vnm, si->hw_if_index);
412 vnet_hw_interface_class_t *hw_class =
413 vnet_get_hw_interface_class (vnm, hi->hw_class_index);
414 vnet_device_class_t *dev_class =
415 vnet_get_device_class (vnm, hi->dev_class_index);
417 if ((flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) &&
418 (si->flags & VNET_SW_INTERFACE_FLAG_ERROR))
420 error = clib_error_return (0, "Interface in the error state");
424 /* save the si admin up flag */
425 old_flags = si->flags;
427 /* update si admin up flag in advance if we are going admin down */
428 if (!(flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP))
429 si->flags &= ~VNET_SW_INTERFACE_FLAG_ADMIN_UP;
431 if (dev_class->admin_up_down_function
432 && (error = dev_class->admin_up_down_function (vnm,
436 /* restore si admin up flag to it's original state on errors */
437 si->flags = old_flags;
441 if (hw_class->admin_up_down_function
442 && (error = hw_class->admin_up_down_function (vnm,
446 /* restore si admin up flag to it's original state on errors */
447 si->flags = old_flags;
451 /* Admin down implies link down. */
452 if (!(flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP)
453 && (hi->flags & VNET_HW_INTERFACE_FLAG_LINK_UP))
454 vnet_hw_interface_set_flags_helper (vnm, si->hw_if_index,
456 ~VNET_HW_INTERFACE_FLAG_LINK_UP,
469 vnet_hw_interface_set_flags (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
471 return vnet_hw_interface_set_flags_helper
472 (vnm, hw_if_index, flags,
473 VNET_INTERFACE_SET_FLAGS_HELPER_WANT_REDISTRIBUTE);
477 vnet_sw_interface_set_flags (vnet_main_t * vnm, u32 sw_if_index, u32 flags)
479 return vnet_sw_interface_set_flags_helper
480 (vnm, sw_if_index, flags,
481 VNET_INTERFACE_SET_FLAGS_HELPER_WANT_REDISTRIBUTE);
485 vnet_create_sw_interface_no_callbacks (vnet_main_t * vnm,
486 vnet_sw_interface_t * template)
488 vnet_interface_main_t *im = &vnm->interface_main;
489 vnet_sw_interface_t *sw;
492 pool_get (im->sw_interfaces, sw);
493 sw_if_index = sw - im->sw_interfaces;
498 sw->sw_if_index = sw_if_index;
499 if (sw->type == VNET_SW_INTERFACE_TYPE_HARDWARE)
500 sw->sup_sw_if_index = sw->sw_if_index;
502 /* Allocate counters for this interface. */
506 vnet_interface_counter_lock (im);
508 for (i = 0; i < vec_len (im->sw_if_counters); i++)
510 vlib_validate_simple_counter (&im->sw_if_counters[i], sw_if_index);
511 vlib_zero_simple_counter (&im->sw_if_counters[i], sw_if_index);
514 for (i = 0; i < vec_len (im->combined_sw_if_counters); i++)
516 vlib_validate_combined_counter (&im->combined_sw_if_counters[i],
518 vlib_zero_combined_counter (&im->combined_sw_if_counters[i],
522 vnet_interface_counter_unlock (im);
529 vnet_create_sw_interface (vnet_main_t * vnm, vnet_sw_interface_t * template,
533 vnet_hw_interface_t *hi;
534 vnet_device_class_t *dev_class;
536 hi = vnet_get_sup_hw_interface (vnm, template->sup_sw_if_index);
537 dev_class = vnet_get_device_class (vnm, hi->dev_class_index);
539 if (template->type == VNET_SW_INTERFACE_TYPE_SUB &&
540 dev_class->subif_add_del_function)
542 error = dev_class->subif_add_del_function (vnm, hi->hw_if_index,
543 (struct vnet_sw_interface_t
549 *sw_if_index = vnet_create_sw_interface_no_callbacks (vnm, template);
550 error = vnet_sw_interface_set_flags_helper
551 (vnm, *sw_if_index, template->flags,
552 VNET_INTERFACE_SET_FLAGS_HELPER_IS_CREATE);
556 /* undo the work done by vnet_create_sw_interface_no_callbacks() */
557 vnet_interface_main_t *im = &vnm->interface_main;
558 vnet_sw_interface_t *sw =
559 pool_elt_at_index (im->sw_interfaces, *sw_if_index);
560 pool_put (im->sw_interfaces, sw);
567 vnet_delete_sw_interface (vnet_main_t * vnm, u32 sw_if_index)
569 vnet_interface_main_t *im = &vnm->interface_main;
570 vnet_sw_interface_t *sw =
571 pool_elt_at_index (im->sw_interfaces, sw_if_index);
573 /* Check if the interface has config and is removed from L2 BD or XConnect */
574 vlib_main_t *vm = vlib_get_main ();
575 l2_input_config_t *config;
576 if (sw_if_index < vec_len (l2input_main.configs))
578 config = vec_elt_at_index (l2input_main.configs, sw_if_index);
579 if (config->xconnect)
580 set_int_l2_mode (vm, vnm, MODE_L3, config->output_sw_if_index, 0,
581 L2_BD_PORT_TYPE_NORMAL, 0, 0);
582 if (config->xconnect || config->bridge)
583 set_int_l2_mode (vm, vnm, MODE_L3, sw_if_index, 0,
584 L2_BD_PORT_TYPE_NORMAL, 0, 0);
586 vnet_clear_sw_interface_tag (vnm, sw_if_index);
588 /* Bring down interface in case it is up. */
590 vnet_sw_interface_set_flags (vnm, sw_if_index, /* flags */ 0);
592 call_sw_interface_add_del_callbacks (vnm, sw_if_index, /* is_create */ 0);
594 pool_put (im->sw_interfaces, sw);
597 static clib_error_t *
598 call_sw_interface_mtu_change_callbacks (vnet_main_t * vnm, u32 sw_if_index)
600 return call_elf_section_interface_callbacks
601 (vnm, sw_if_index, 0, vnm->sw_interface_mtu_change_functions);
605 vnet_sw_interface_set_mtu (vnet_main_t * vnm, u32 sw_if_index, u32 mtu)
607 vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index);
609 if (si->mtu[VNET_MTU_L3] != mtu)
611 si->mtu[VNET_MTU_L3] = mtu;
612 call_sw_interface_mtu_change_callbacks (vnm, sw_if_index);
617 vnet_sw_interface_set_protocol_mtu (vnet_main_t * vnm, u32 sw_if_index,
620 vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index);
621 bool changed = false;
624 for (i = 0; i < VNET_N_MTU; i++)
626 if (si->mtu[i] != mtu[i])
632 /* Notify interested parties */
634 call_sw_interface_mtu_change_callbacks (vnm, sw_if_index);
638 vnet_sw_interface_ip_directed_broadcast (vnet_main_t * vnm,
639 u32 sw_if_index, u8 enable)
641 vnet_sw_interface_t *si;
643 si = vnet_get_sw_interface (vnm, sw_if_index);
646 si->flags |= VNET_SW_INTERFACE_FLAG_DIRECTED_BCAST;
648 si->flags &= ~VNET_SW_INTERFACE_FLAG_DIRECTED_BCAST;
650 ip4_directed_broadcast (sw_if_index, enable);
654 * Reflect a change in hardware MTU on protocol MTUs
657 sw_interface_walk_callback (vnet_main_t * vnm, u32 sw_if_index, void *ctx)
660 vnet_sw_interface_set_mtu (vnm, sw_if_index, *link_mtu);
661 return WALK_CONTINUE;
665 vnet_hw_interface_set_mtu (vnet_main_t * vnm, u32 hw_if_index, u32 mtu)
667 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
669 if (hi->max_packet_bytes != mtu)
671 hi->max_packet_bytes = mtu;
672 ethernet_set_flags (vnm, hw_if_index, ETHERNET_INTERFACE_FLAG_MTU);
673 vnet_hw_interface_walk_sw (vnm, hw_if_index, sw_interface_walk_callback,
679 setup_tx_node (vlib_main_t * vm,
680 u32 node_index, vnet_device_class_t * dev_class)
682 vlib_node_t *n = vlib_get_node (vm, node_index);
684 n->function = dev_class->tx_function;
685 n->format_trace = dev_class->format_tx_trace;
687 vlib_register_errors (vm, node_index,
688 dev_class->tx_function_n_errors,
689 dev_class->tx_function_error_strings);
693 setup_output_node (vlib_main_t * vm,
694 u32 node_index, vnet_hw_interface_class_t * hw_class)
696 vlib_node_t *n = vlib_get_node (vm, node_index);
697 n->format_buffer = hw_class->format_header;
698 n->unformat_buffer = hw_class->unformat_header;
701 /* Register an interface instance. */
703 vnet_register_interface (vnet_main_t * vnm,
706 u32 hw_class_index, u32 hw_instance)
708 vnet_interface_main_t *im = &vnm->interface_main;
709 vnet_hw_interface_t *hw;
710 vnet_device_class_t *dev_class =
711 vnet_get_device_class (vnm, dev_class_index);
712 vnet_hw_interface_class_t *hw_class =
713 vnet_get_hw_interface_class (vnm, hw_class_index);
714 vlib_main_t *vm = vnm->vlib_main;
715 vnet_feature_config_main_t *fcm;
716 vnet_config_main_t *cm;
718 char *tx_node_name = NULL, *output_node_name = NULL;
720 pool_get (im->hw_interfaces, hw);
721 clib_memset (hw, 0, sizeof (*hw));
723 hw_index = hw - im->hw_interfaces;
724 hw->hw_if_index = hw_index;
725 hw->default_rx_mode = VNET_HW_INTERFACE_RX_MODE_POLLING;
727 if (dev_class->format_device_name)
728 hw->name = format (0, "%U", dev_class->format_device_name, dev_instance);
729 else if (hw_class->format_interface_name)
730 hw->name = format (0, "%U", hw_class->format_interface_name,
733 hw->name = format (0, "%s%x", hw_class->name, dev_instance);
735 if (!im->hw_interface_by_name)
736 im->hw_interface_by_name = hash_create_vec ( /* size */ 0,
737 sizeof (hw->name[0]),
740 hash_set_mem (im->hw_interface_by_name, hw->name, hw_index);
742 /* Make hardware interface point to software interface. */
744 vnet_sw_interface_t sw = {
745 .type = VNET_SW_INTERFACE_TYPE_HARDWARE,
746 .flood_class = VNET_FLOOD_CLASS_NORMAL,
747 .hw_if_index = hw_index
749 hw->sw_if_index = vnet_create_sw_interface_no_callbacks (vnm, &sw);
752 hw->dev_class_index = dev_class_index;
753 hw->dev_instance = dev_instance;
754 hw->hw_class_index = hw_class_index;
755 hw->hw_instance = hw_instance;
757 hw->max_rate_bits_per_sec = 0;
758 hw->min_packet_bytes = 0;
759 vnet_sw_interface_set_mtu (vnm, hw->sw_if_index, 0);
761 if (dev_class->tx_function == 0)
762 goto no_output_nodes; /* No output/tx nodes to create */
764 tx_node_name = (char *) format (0, "%v-tx", hw->name);
765 output_node_name = (char *) format (0, "%v-output", hw->name);
767 /* If we have previously deleted interface nodes, re-use them. */
768 if (vec_len (im->deleted_hw_interface_nodes) > 0)
770 vnet_hw_interface_nodes_t *hn;
772 vlib_node_runtime_t *nrt;
774 hn = vec_end (im->deleted_hw_interface_nodes) - 1;
776 hw->tx_node_index = hn->tx_node_index;
777 hw->output_node_index = hn->output_node_index;
779 vlib_node_rename (vm, hw->tx_node_index, "%v", tx_node_name);
780 vlib_node_rename (vm, hw->output_node_index, "%v", output_node_name);
784 vnet_interface_output_runtime_t *rt;
786 rt = vlib_node_get_runtime_data (this_vlib_main, hw->output_node_index);
787 ASSERT (rt->is_deleted == 1);
789 rt->hw_if_index = hw_index;
790 rt->sw_if_index = hw->sw_if_index;
791 rt->dev_instance = hw->dev_instance;
793 rt = vlib_node_get_runtime_data (this_vlib_main, hw->tx_node_index);
794 rt->hw_if_index = hw_index;
795 rt->sw_if_index = hw->sw_if_index;
796 rt->dev_instance = hw->dev_instance;
800 /* The new class may differ from the old one.
801 * Functions have to be updated. */
802 node = vlib_get_node (vm, hw->output_node_index);
803 node->function = vnet_interface_output_node_multiarch_select ();
804 node->format_trace = format_vnet_interface_output_trace;
807 nrt = vlib_node_get_runtime (this_vlib_main, hw->output_node_index);
808 nrt->function = node->function;
812 node = vlib_get_node (vm, hw->tx_node_index);
813 node->function = dev_class->tx_function;
814 node->format_trace = dev_class->format_tx_trace;
817 nrt = vlib_node_get_runtime (this_vlib_main, hw->tx_node_index);
818 nrt->function = node->function;
822 _vec_len (im->deleted_hw_interface_nodes) -= 1;
826 vlib_node_registration_t r;
827 vnet_interface_output_runtime_t rt = {
828 .hw_if_index = hw_index,
829 .sw_if_index = hw->sw_if_index,
830 .dev_instance = hw->dev_instance,
834 clib_memset (&r, 0, sizeof (r));
835 r.type = VLIB_NODE_TYPE_INTERNAL;
836 r.runtime_data = &rt;
837 r.runtime_data_bytes = sizeof (rt);
839 r.vector_size = sizeof (u32);
841 r.flags = VLIB_NODE_FLAG_IS_OUTPUT;
842 r.name = tx_node_name;
843 r.function = dev_class->tx_function;
845 hw->tx_node_index = vlib_register_node (vm, &r);
847 vlib_node_add_named_next_with_slot (vm, hw->tx_node_index,
849 VNET_INTERFACE_TX_NEXT_DROP);
852 r.name = output_node_name;
853 r.function = vnet_interface_output_node_multiarch_select ();
854 r.format_trace = format_vnet_interface_output_trace;
859 "interface is deleted",
862 r.n_errors = ARRAY_LEN (e);
865 hw->output_node_index = vlib_register_node (vm, &r);
867 vlib_node_add_named_next_with_slot (vm, hw->output_node_index,
869 VNET_INTERFACE_OUTPUT_NEXT_DROP);
870 vlib_node_add_next_with_slot (vm, hw->output_node_index,
872 VNET_INTERFACE_OUTPUT_NEXT_TX);
874 /* add interface to the list of "output-interface" feature arc start nodes
875 and clone nexts from 1st interface if it exists */
876 fcm = vnet_feature_get_config_main (im->output_feature_arc_index);
877 cm = &fcm->config_main;
878 i = vec_len (cm->start_node_indices);
879 vec_validate (cm->start_node_indices, i);
880 cm->start_node_indices[i] = hw->output_node_index;
883 /* copy nexts from 1st interface */
884 vnet_hw_interface_t *first_hw;
885 vlib_node_t *first_node;
887 first_hw = vnet_get_hw_interface (vnm, /* hw_if_index */ 0);
888 first_node = vlib_get_node (vm, first_hw->output_node_index);
890 /* 1st 2 nexts are already added above */
891 for (i = 2; i < vec_len (first_node->next_nodes); i++)
892 vlib_node_add_next_with_slot (vm, hw->output_node_index,
893 first_node->next_nodes[i], i);
897 setup_output_node (vm, hw->output_node_index, hw_class);
898 setup_tx_node (vm, hw->tx_node_index, dev_class);
901 /* Call all up/down callbacks with zero flags when interface is created. */
902 vnet_sw_interface_set_flags_helper (vnm, hw->sw_if_index, /* flags */ 0,
903 VNET_INTERFACE_SET_FLAGS_HELPER_IS_CREATE);
904 vnet_hw_interface_set_flags_helper (vnm, hw_index, /* flags */ 0,
905 VNET_INTERFACE_SET_FLAGS_HELPER_IS_CREATE);
906 vec_free (tx_node_name);
907 vec_free (output_node_name);
913 vnet_delete_hw_interface (vnet_main_t * vnm, u32 hw_if_index)
915 vnet_interface_main_t *im = &vnm->interface_main;
916 vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, hw_if_index);
917 vlib_main_t *vm = vnm->vlib_main;
918 vnet_device_class_t *dev_class = vnet_get_device_class (vnm,
919 hw->dev_class_index);
920 /* If it is up, mark it down. */
922 vnet_hw_interface_set_flags (vnm, hw_if_index, /* flags */ 0);
924 /* Call delete callbacks. */
925 call_hw_interface_add_del_callbacks (vnm, hw_if_index, /* is_create */ 0);
927 /* Delete any sub-interfaces. */
931 hash_foreach (id, sw_if_index, hw->sub_interface_sw_if_index_by_id,
933 vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index);
934 u64 sup_and_sub_key =
935 ((u64) (si->sup_sw_if_index) << 32) | (u64) si->sub.id;
936 hash_unset_mem_free (&im->sw_if_index_by_sup_and_sub, &sup_and_sub_key);
937 vnet_delete_sw_interface (vnm, sw_if_index);
939 hash_free (hw->sub_interface_sw_if_index_by_id);
943 /* Delete software interface corresponding to hardware interface. */
944 vnet_delete_sw_interface (vnm, hw->sw_if_index);
946 if (dev_class->tx_function)
948 /* Put output/tx nodes into recycle pool */
949 vnet_hw_interface_nodes_t *dn;
954 vnet_interface_output_runtime_t *rt =
955 vlib_node_get_runtime_data (this_vlib_main, hw->output_node_index);
957 /* Mark node runtime as deleted so output node (if called)
958 * will drop packets. */
963 vlib_node_rename (vm, hw->output_node_index,
964 "interface-%d-output-deleted", hw_if_index);
965 vlib_node_rename (vm, hw->tx_node_index, "interface-%d-tx-deleted",
967 vec_add2 (im->deleted_hw_interface_nodes, dn, 1);
968 dn->tx_node_index = hw->tx_node_index;
969 dn->output_node_index = hw->output_node_index;
972 hash_unset_mem (im->hw_interface_by_name, hw->name);
974 vec_free (hw->hw_address);
975 vec_free (hw->input_node_thread_index_by_queue);
976 vec_free (hw->dq_runtime_index_by_queue);
978 pool_put (im->hw_interfaces, hw);
982 vnet_hw_interface_walk_sw (vnet_main_t * vnm,
984 vnet_hw_sw_interface_walk_t fn, void *ctx)
986 vnet_hw_interface_t *hi;
989 hi = vnet_get_hw_interface (vnm, hw_if_index);
990 /* the super first, then the sub interfaces */
991 if (WALK_STOP == fn (vnm, hi->sw_if_index, ctx))
995 hash_foreach (id, sw_if_index,
996 hi->sub_interface_sw_if_index_by_id,
998 if (WALK_STOP == fn (vnm, sw_if_index, ctx))
1005 vnet_hw_interface_walk (vnet_main_t * vnm,
1006 vnet_hw_interface_walk_t fn, void *ctx)
1008 vnet_interface_main_t *im;
1009 vnet_hw_interface_t *hi;
1011 im = &vnm->interface_main;
1014 pool_foreach (hi, im->hw_interfaces,
1016 if (WALK_STOP == fn(vnm, hi->hw_if_index, ctx))
1023 vnet_sw_interface_walk (vnet_main_t * vnm,
1024 vnet_sw_interface_walk_t fn, void *ctx)
1026 vnet_interface_main_t *im;
1027 vnet_sw_interface_t *si;
1029 im = &vnm->interface_main;
1032 pool_foreach (si, im->sw_interfaces,
1034 if (WALK_STOP == fn (vnm, si, ctx))
1041 vnet_hw_interface_init_for_class (vnet_main_t * vnm, u32 hw_if_index,
1042 u32 hw_class_index, u32 hw_instance)
1044 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1045 vnet_hw_interface_class_t *hc =
1046 vnet_get_hw_interface_class (vnm, hw_class_index);
1048 hi->hw_class_index = hw_class_index;
1049 hi->hw_instance = hw_instance;
1050 setup_output_node (vnm->vlib_main, hi->output_node_index, hc);
1053 static clib_error_t *
1054 vnet_hw_interface_set_class_helper (vnet_main_t * vnm, u32 hw_if_index,
1055 u32 hw_class_index, u32 redistribute)
1057 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1058 vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, hi->sw_if_index);
1059 vnet_hw_interface_class_t *old_class =
1060 vnet_get_hw_interface_class (vnm, hi->hw_class_index);
1061 vnet_hw_interface_class_t *new_class =
1062 vnet_get_hw_interface_class (vnm, hw_class_index);
1063 vnet_device_class_t *dev_class =
1064 vnet_get_device_class (vnm, hi->dev_class_index);
1065 clib_error_t *error = 0;
1067 /* New class equals old class? Nothing to do. */
1068 if (hi->hw_class_index == hw_class_index)
1071 /* No need (and incorrect since admin up flag may be set) to do error checking when
1072 receiving unserialize message. */
1075 if (si->flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP)
1076 return clib_error_return (0,
1077 "%v must be admin down to change class from %s to %s",
1078 hi->name, old_class->name, new_class->name);
1080 /* Make sure interface supports given class. */
1081 if ((new_class->is_valid_class_for_interface
1082 && !new_class->is_valid_class_for_interface (vnm, hw_if_index,
1084 || (dev_class->is_valid_class_for_interface
1085 && !dev_class->is_valid_class_for_interface (vnm, hw_if_index,
1087 return clib_error_return (0,
1088 "%v class cannot be changed from %s to %s",
1089 hi->name, old_class->name, new_class->name);
1093 if (old_class->hw_class_change)
1094 old_class->hw_class_change (vnm, hw_if_index, old_class->index,
1097 vnet_hw_interface_init_for_class (vnm, hw_if_index, new_class->index,
1100 if (new_class->hw_class_change)
1101 new_class->hw_class_change (vnm, hw_if_index, old_class->index,
1104 if (dev_class->hw_class_change)
1105 dev_class->hw_class_change (vnm, hw_if_index, new_class->index);
1111 vnet_hw_interface_set_class (vnet_main_t * vnm, u32 hw_if_index,
1114 return vnet_hw_interface_set_class_helper (vnm, hw_if_index, hw_class_index,
1115 /* redistribute */ 1);
1119 vnet_hw_interface_rx_redirect_to_node_helper (vnet_main_t * vnm,
1124 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1125 vnet_device_class_t *dev_class = vnet_get_device_class
1126 (vnm, hi->dev_class_index);
1128 if (dev_class->rx_redirect_to_node)
1130 dev_class->rx_redirect_to_node (vnm, hw_if_index, node_index);
1134 return VNET_API_ERROR_UNIMPLEMENTED;
1138 vnet_hw_interface_rx_redirect_to_node (vnet_main_t * vnm, u32 hw_if_index,
1141 return vnet_hw_interface_rx_redirect_to_node_helper (vnm, hw_if_index,
1143 1 /* redistribute */ );
1147 vnet_sw_interface_compare (vnet_main_t * vnm,
1148 uword sw_if_index0, uword sw_if_index1)
1150 vnet_sw_interface_t *sup0 = vnet_get_sup_sw_interface (vnm, sw_if_index0);
1151 vnet_sw_interface_t *sup1 = vnet_get_sup_sw_interface (vnm, sw_if_index1);
1152 vnet_hw_interface_t *h0 = vnet_get_hw_interface (vnm, sup0->hw_if_index);
1153 vnet_hw_interface_t *h1 = vnet_get_hw_interface (vnm, sup1->hw_if_index);
1156 return vec_cmp (h0->name, h1->name);
1157 return (word) h0->hw_instance - (word) h1->hw_instance;
1161 vnet_hw_interface_compare (vnet_main_t * vnm,
1162 uword hw_if_index0, uword hw_if_index1)
1164 vnet_hw_interface_t *h0 = vnet_get_hw_interface (vnm, hw_if_index0);
1165 vnet_hw_interface_t *h1 = vnet_get_hw_interface (vnm, hw_if_index1);
1168 return vec_cmp (h0->name, h1->name);
1169 return (word) h0->hw_instance - (word) h1->hw_instance;
1173 vnet_sw_interface_is_p2p (vnet_main_t * vnm, u32 sw_if_index)
1175 vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index);
1176 if ((si->type == VNET_SW_INTERFACE_TYPE_P2P) ||
1177 (si->type == VNET_SW_INTERFACE_TYPE_PIPE))
1180 vnet_hw_interface_t *hw = vnet_get_sup_hw_interface (vnm, sw_if_index);
1181 vnet_hw_interface_class_t *hc =
1182 vnet_get_hw_interface_class (vnm, hw->hw_class_index);
1184 return (hc->flags & VNET_HW_INTERFACE_CLASS_FLAG_P2P);
1188 vnet_interface_init (vlib_main_t * vm)
1190 vnet_main_t *vnm = vnet_get_main ();
1191 vnet_interface_main_t *im = &vnm->interface_main;
1192 vlib_buffer_t *b = 0;
1193 vnet_buffer_opaque_t *o = 0;
1194 clib_error_t *error;
1197 * Keep people from shooting themselves in the foot.
1199 if (sizeof (b->opaque) != sizeof (vnet_buffer_opaque_t))
1201 #define _(a) if (sizeof(o->a) > sizeof (o->unused)) \
1203 ("FATAL: size of opaque union subtype %s is %d (max %d)", \
1204 #a, sizeof(o->a), sizeof (o->unused));
1205 foreach_buffer_opaque_union_subtype;
1208 return clib_error_return
1209 (0, "FATAL: size of vlib buffer opaque %d, size of vnet opaque %d",
1210 sizeof (b->opaque), sizeof (vnet_buffer_opaque_t));
1213 im->sw_if_counter_lock = clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES,
1214 CLIB_CACHE_LINE_BYTES);
1215 im->sw_if_counter_lock[0] = 1; /* should be no need */
1217 vec_validate (im->sw_if_counters, VNET_N_SIMPLE_INTERFACE_COUNTER - 1);
1219 im->sw_if_counters[VNET_INTERFACE_COUNTER_##E].name = #n; \
1220 im->sw_if_counters[VNET_INTERFACE_COUNTER_##E].stat_segment_name = "/" #p "/" #n;
1221 foreach_simple_interface_counter_name
1223 vec_validate (im->combined_sw_if_counters,
1224 VNET_N_COMBINED_INTERFACE_COUNTER - 1);
1226 im->combined_sw_if_counters[VNET_INTERFACE_COUNTER_##E].name = #n; \
1227 im->combined_sw_if_counters[VNET_INTERFACE_COUNTER_##E].stat_segment_name = "/" #p "/" #n;
1228 foreach_combined_interface_counter_name
1230 im->sw_if_counter_lock[0] = 0;
1232 im->device_class_by_name = hash_create_string ( /* size */ 0,
1235 vnet_device_class_t *c;
1237 c = vnm->device_class_registrations;
1241 c->index = vec_len (im->device_classes);
1242 hash_set_mem (im->device_class_by_name, c->name, c->index);
1244 if (c->tx_fn_registrations)
1246 vlib_node_fn_registration_t *fnr = c->tx_fn_registrations;
1249 /* to avoid confusion, please remove ".tx_function" statement
1250 from VNET_DEVICE_CLASS() if using function candidates */
1251 ASSERT (c->tx_function == 0);
1255 if (fnr->priority > priority)
1257 priority = fnr->priority;
1258 c->tx_function = fnr->function;
1260 fnr = fnr->next_registration;
1264 vec_add1 (im->device_classes, c[0]);
1265 c = c->next_class_registration;
1269 im->hw_interface_class_by_name = hash_create_string ( /* size */ 0,
1272 im->sw_if_index_by_sup_and_sub = hash_create_mem (0, sizeof (u64),
1275 vnet_hw_interface_class_t *c;
1277 c = vnm->hw_interface_class_registrations;
1281 c->index = vec_len (im->hw_interface_classes);
1282 hash_set_mem (im->hw_interface_class_by_name, c->name, c->index);
1284 if (NULL == c->build_rewrite)
1285 c->build_rewrite = default_build_rewrite;
1286 if (NULL == c->update_adjacency)
1287 c->update_adjacency = default_update_adjacency;
1289 vec_add1 (im->hw_interface_classes, c[0]);
1290 c = c->next_class_registration;
1294 if ((error = vlib_call_init_function (vm, vnet_interface_cli_init)))
1297 vnm->interface_tag_by_sw_if_index = hash_create (0, sizeof (uword));
1299 #if VLIB_BUFFER_TRACE_TRAJECTORY > 0
1300 if ((error = vlib_call_init_function (vm, trajectory_trace_init)))
1307 VLIB_INIT_FUNCTION (vnet_interface_init);
1309 /* Kludge to renumber interface names [only!] */
1311 vnet_interface_name_renumber (u32 sw_if_index, u32 new_show_dev_instance)
1314 vnet_main_t *vnm = vnet_get_main ();
1315 vnet_interface_main_t *im = &vnm->interface_main;
1316 vnet_hw_interface_t *hi = vnet_get_sup_hw_interface (vnm, sw_if_index);
1318 vnet_device_class_t *dev_class = vnet_get_device_class
1319 (vnm, hi->dev_class_index);
1321 if (dev_class->name_renumber == 0 || dev_class->format_device_name == 0)
1322 return VNET_API_ERROR_UNIMPLEMENTED;
1324 rv = dev_class->name_renumber (hi, new_show_dev_instance);
1329 hash_unset_mem (im->hw_interface_by_name, hi->name);
1330 vec_free (hi->name);
1331 /* Use the mapping we set up to call it Ishmael */
1332 hi->name = format (0, "%U", dev_class->format_device_name,
1335 hash_set_mem (im->hw_interface_by_name, hi->name, hi->hw_if_index);
1340 vnet_rename_interface (vnet_main_t * vnm, u32 hw_if_index, char *new_name)
1342 vnet_interface_main_t *im = &vnm->interface_main;
1343 vlib_main_t *vm = vnm->vlib_main;
1344 vnet_hw_interface_t *hw;
1346 clib_error_t *error = 0;
1348 hw = vnet_get_hw_interface (vnm, hw_if_index);
1351 return clib_error_return (0,
1352 "unable to find hw interface for index %u",
1356 old_name = hw->name;
1358 /* set new hw->name */
1359 hw->name = format (0, "%s", new_name);
1361 /* remove the old name to hw_if_index mapping and install the new one */
1362 hash_unset_mem (im->hw_interface_by_name, old_name);
1363 hash_set_mem (im->hw_interface_by_name, hw->name, hw_if_index);
1365 /* rename tx/output nodes */
1366 vlib_node_rename (vm, hw->tx_node_index, "%v-tx", hw->name);
1367 vlib_node_rename (vm, hw->output_node_index, "%v-output", hw->name);
1369 /* free the old name vector */
1370 vec_free (old_name);
1375 static clib_error_t *
1376 vnet_hw_interface_change_mac_address_helper (vnet_main_t * vnm,
1380 clib_error_t *error = 0;
1381 vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
1385 u8 *old_address = vec_dup (hi->hw_address);
1386 vnet_device_class_t *dev_class =
1387 vnet_get_device_class (vnm, hi->dev_class_index);
1388 if (dev_class->mac_addr_change_function)
1391 dev_class->mac_addr_change_function (hi, old_address,
1396 vnet_hw_interface_class_t *hw_class;
1398 hw_class = vnet_get_hw_interface_class (vnm, hi->hw_class_index);
1400 if (NULL != hw_class->mac_addr_change_function)
1401 hw_class->mac_addr_change_function (hi, old_address, mac_address);
1406 clib_error_return (0,
1407 "MAC Address Change is not supported on this interface");
1409 vec_free (old_address);
1414 clib_error_return (0,
1415 "mac address change is not supported for interface index %u",
1422 vnet_hw_interface_change_mac_address (vnet_main_t * vnm, u32 hw_if_index,
1425 return vnet_hw_interface_change_mac_address_helper
1426 (vnm, hw_if_index, mac_address);
1429 /* update the unnumbered state of an interface*/
1431 vnet_sw_interface_update_unnumbered (u32 unnumbered_sw_if_index,
1432 u32 ip_sw_if_index, u8 enable)
1434 vnet_main_t *vnm = vnet_get_main ();
1435 vnet_sw_interface_t *si;
1438 si = vnet_get_sw_interface (vnm, unnumbered_sw_if_index);
1439 was_unnum = (si->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED);
1443 si->flags |= VNET_SW_INTERFACE_FLAG_UNNUMBERED;
1444 si->unnumbered_sw_if_index = ip_sw_if_index;
1446 ip4_main.lookup_main.if_address_pool_index_by_sw_if_index
1447 [unnumbered_sw_if_index] =
1449 lookup_main.if_address_pool_index_by_sw_if_index[ip_sw_if_index];
1451 lookup_main.if_address_pool_index_by_sw_if_index
1452 [unnumbered_sw_if_index] =
1454 lookup_main.if_address_pool_index_by_sw_if_index[ip_sw_if_index];
1458 si->flags &= ~(VNET_SW_INTERFACE_FLAG_UNNUMBERED);
1459 si->unnumbered_sw_if_index = (u32) ~ 0;
1461 ip4_main.lookup_main.if_address_pool_index_by_sw_if_index
1462 [unnumbered_sw_if_index] = ~0;
1463 ip6_main.lookup_main.if_address_pool_index_by_sw_if_index
1464 [unnumbered_sw_if_index] = ~0;
1467 if (was_unnum != (si->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED))
1469 ip4_sw_interface_enable_disable (unnumbered_sw_if_index, enable);
1470 ip6_sw_interface_enable_disable (unnumbered_sw_if_index, enable);
1474 vnet_l3_packet_type_t
1475 vnet_link_to_l3_proto (vnet_link_t link)
1480 return (VNET_L3_PACKET_TYPE_IP4);
1482 return (VNET_L3_PACKET_TYPE_IP6);
1483 case VNET_LINK_MPLS:
1484 return (VNET_L3_PACKET_TYPE_MPLS);
1486 return (VNET_L3_PACKET_TYPE_ARP);
1487 case VNET_LINK_ETHERNET:
1497 vnet_link_to_mtu (vnet_link_t link)
1502 return (VNET_MTU_IP4);
1504 return (VNET_MTU_IP6);
1505 case VNET_LINK_MPLS:
1506 return (VNET_MTU_MPLS);
1508 return (VNET_MTU_L3);
1513 default_build_rewrite (vnet_main_t * vnm,
1515 vnet_link_t link_type, const void *dst_address)
1521 default_update_adjacency (vnet_main_t * vnm, u32 sw_if_index, u32 ai)
1523 ip_adjacency_t *adj;
1527 switch (adj->lookup_next_index)
1529 case IP_LOOKUP_NEXT_GLEAN:
1530 adj_glean_update_rewrite (ai);
1532 case IP_LOOKUP_NEXT_ARP:
1533 case IP_LOOKUP_NEXT_BCAST:
1535 * default rewrite in neighbour adj
1537 adj_nbr_update_rewrite
1539 ADJ_NBR_REWRITE_FLAG_COMPLETE,
1540 vnet_build_rewrite_for_sw_interface (vnm,
1542 adj_get_link_type (ai), NULL));
1544 case IP_LOOKUP_NEXT_MCAST:
1546 * mcast traffic also uses default rewrite string with no mcast
1547 * switch time updates.
1549 adj_mcast_update_rewrite
1551 vnet_build_rewrite_for_sw_interface (vnm,
1553 adj_get_link_type (ai),
1556 case IP_LOOKUP_NEXT_DROP:
1557 case IP_LOOKUP_NEXT_PUNT:
1558 case IP_LOOKUP_NEXT_LOCAL:
1559 case IP_LOOKUP_NEXT_REWRITE:
1560 case IP_LOOKUP_NEXT_MCAST_MIDCHAIN:
1561 case IP_LOOKUP_NEXT_MIDCHAIN:
1562 case IP_LOOKUP_NEXT_ICMP_ERROR:
1563 case IP_LOOKUP_N_NEXT:
1569 int collect_detailed_interface_stats_flag = 0;
1572 collect_detailed_interface_stats_flag_set (void)
1574 collect_detailed_interface_stats_flag = 1;
1578 collect_detailed_interface_stats_flag_clear (void)
1580 collect_detailed_interface_stats_flag = 0;
1583 static clib_error_t *
1584 collect_detailed_interface_stats_cli (vlib_main_t * vm,
1585 unformat_input_t * input,
1586 vlib_cli_command_t * cmd)
1588 unformat_input_t _line_input, *line_input = &_line_input;
1589 clib_error_t *error = NULL;
1591 /* Get a line of input. */
1592 if (!unformat_user (input, unformat_line_input, line_input))
1593 return clib_error_return (0, "expected enable | disable");
1595 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
1597 if (unformat (line_input, "enable") || unformat (line_input, "on"))
1598 collect_detailed_interface_stats_flag_set ();
1599 else if (unformat (line_input, "disable")
1600 || unformat (line_input, "off"))
1601 collect_detailed_interface_stats_flag_clear ();
1604 error = clib_error_return (0, "unknown input `%U'",
1605 format_unformat_error, line_input);
1611 unformat_free (line_input);
1616 VLIB_CLI_COMMAND (collect_detailed_interface_stats_command, static) = {
1617 .path = "interface collect detailed-stats",
1618 .short_help = "interface collect detailed-stats <enable|disable>",
1619 .function = collect_detailed_interface_stats_cli,
1624 * fd.io coding-style-patch-verification: ON
1627 * eval: (c-set-style "gnu")