2 * netifd - network interface daemon
3 * Copyright (C) 2012 Felix Fietkau <nbd@openwrt.org>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2
7 * as published by the Free Software Foundation
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
20 #include "interface.h"
21 #include "interface-ip.h"
27 struct vlist_tree interfaces;
28 static LIST_HEAD(iface_all_users);
29 static unsigned int interface_serial = 0;
35 IFACE_ATTR_DEFAULTROUTE,
38 IFACE_ATTR_DNS_SEARCH,
50 static const struct blobmsg_policy iface_attrs[IFACE_ATTR_MAX] = {
51 [IFACE_ATTR_PROTO] = { .name = "proto", .type = BLOBMSG_TYPE_STRING },
52 [IFACE_ATTR_IFNAME] = { .name = "ifname", .type = BLOBMSG_TYPE_STRING },
53 [IFACE_ATTR_AUTO] = { .name = "auto", .type = BLOBMSG_TYPE_BOOL },
54 [IFACE_ATTR_DEFAULTROUTE] = { .name = "defaultroute", .type = BLOBMSG_TYPE_BOOL },
55 [IFACE_ATTR_PEERDNS] = { .name = "peerdns", .type = BLOBMSG_TYPE_BOOL },
56 [IFACE_ATTR_METRIC] = { .name = "metric", .type = BLOBMSG_TYPE_INT32 },
57 [IFACE_ATTR_DNS] = { .name = "dns", .type = BLOBMSG_TYPE_ARRAY },
58 [IFACE_ATTR_DNS_SEARCH] = { .name = "dns_search", .type = BLOBMSG_TYPE_ARRAY },
59 [IFACE_ATTR_INTERFACE] = { .name = "interface", .type = BLOBMSG_TYPE_STRING },
60 [IFACE_ATTR_IP6ASSIGN] = { .name = "ip6assign", .type = BLOBMSG_TYPE_INT32 },
61 [IFACE_ATTR_IP6HINT] = { .name = "ip6hint", .type = BLOBMSG_TYPE_STRING },
62 [IFACE_ATTR_IP4TABLE] = { .name = "ip4table", .type = BLOBMSG_TYPE_STRING },
63 [IFACE_ATTR_IP6TABLE] = { .name = "ip6table", .type = BLOBMSG_TYPE_STRING },
64 [IFACE_ATTR_IP6CLASS] = { .name = "ip6class", .type = BLOBMSG_TYPE_ARRAY },
65 [IFACE_ATTR_DELEGATE] = { .name = "delegate", .type = BLOBMSG_TYPE_BOOL },
68 static const struct uci_blob_param_info iface_attr_info[IFACE_ATTR_MAX] = {
69 [IFACE_ATTR_DNS] = { .type = BLOBMSG_TYPE_STRING },
70 [IFACE_ATTR_IP6CLASS] = { .type = BLOBMSG_TYPE_STRING },
73 const struct uci_blob_param_list interface_attr_list = {
74 .n_params = IFACE_ATTR_MAX,
75 .params = iface_attrs,
76 .info = iface_attr_info,
80 interface_clear_errors(struct interface *iface)
82 struct interface_error *error, *tmp;
84 list_for_each_entry_safe(error, tmp, &iface->errors, list) {
85 list_del(&error->list);
90 void interface_add_error(struct interface *iface, const char *subsystem,
91 const char *code, const char **data, int n_data)
93 struct interface_error *error;
96 char *dest, *d_subsys, *d_code;
99 len = n_data * sizeof(char *);
100 datalen = alloca(len);
101 for (i = 0; i < n_data; i++) {
102 datalen[i] = strlen(data[i]) + 1;
107 error = calloc_a(sizeof(*error) + sizeof(char *) + len,
108 &d_subsys, subsystem ? strlen(subsystem) + 1 : 0,
109 &d_code, code ? strlen(code) + 1 : 0);
113 list_add_tail(&error->list, &iface->errors);
115 dest = (char *) &error->data[n_data + 1];
116 for (i = 0; i < n_data; i++) {
117 error->data[i] = dest;
118 memcpy(dest, data[i], datalen[i]);
121 error->data[n_data++] = NULL;
124 error->subsystem = strcpy(d_subsys, subsystem);
127 error->code = strcpy(d_code, code);
131 interface_data_del(struct interface *iface, struct interface_data *data)
133 avl_delete(&iface->data, &data->node);
138 interface_data_flush(struct interface *iface)
140 struct interface_data *d, *tmp;
142 avl_for_each_element_safe(&iface->data, d, node, tmp)
143 interface_data_del(iface, d);
147 interface_add_data(struct interface *iface, const struct blob_attr *data)
149 struct interface_data *n, *o;
151 if (!blobmsg_check_attr(data, true))
152 return UBUS_STATUS_INVALID_ARGUMENT;
154 const char *name = blobmsg_name(data);
155 unsigned len = blob_pad_len(data);
157 o = avl_find_element(&iface->data, name, o, node);
159 if (blob_pad_len(o->data) == len && !memcmp(o->data, data, len))
162 interface_data_del(iface, o);
165 n = calloc(1, sizeof(*n) + len);
166 memcpy(n->data, data, len);
167 n->node.key = blobmsg_name(n->data);
168 avl_insert(&iface->data, &n->node);
170 iface->updated |= IUF_DATA;
175 interface_event(struct interface *iface, enum interface_event ev)
177 struct interface_user *dep, *tmp;
178 struct device *adev = NULL;
180 list_for_each_entry_safe(dep, tmp, &iface->users, list)
181 dep->cb(dep, iface, ev);
183 list_for_each_entry_safe(dep, tmp, &iface_all_users, list)
184 dep->cb(dep, iface, ev);
188 adev = iface->l3_dev.dev;
191 alias_notify_device(iface->name, adev);
199 interface_flush_state(struct interface *iface)
201 if (iface->l3_dev.dev)
202 device_release(&iface->l3_dev);
203 interface_data_flush(iface);
207 mark_interface_down(struct interface *iface)
209 enum interface_state state = iface->state;
211 iface->state = IFS_DOWN;
213 interface_event(iface, IFEV_DOWN);
214 interface_ip_set_enabled(&iface->config_ip, false);
215 interface_ip_flush(&iface->proto_ip);
216 interface_flush_state(iface);
217 system_flush_routes();
221 __interface_set_down(struct interface *iface, bool force)
223 if (iface->state == IFS_DOWN ||
224 iface->state == IFS_TEARDOWN)
227 if (iface->state == IFS_UP)
228 interface_event(iface, IFEV_DOWN);
229 iface->state = IFS_TEARDOWN;
230 interface_proto_event(iface->proto, PROTO_CMD_TEARDOWN, force);
232 interface_flush_state(iface);
235 vlist_delete(&interfaces, &iface->node);
239 interface_cb(struct device_user *dep, enum device_event ev)
241 struct interface *iface;
244 iface = container_of(dep, struct interface, main_dev);
249 case DEV_EVENT_REMOVE:
256 interface_set_available(iface, new_state);
257 if (!new_state && dep->dev->external)
258 interface_set_main_dev(iface, NULL);
262 interface_set_available(struct interface *iface, bool new_state)
264 if (iface->available == new_state)
267 D(INTERFACE, "Interface '%s', available=%d\n", iface->name, new_state);
268 iface->available = new_state;
271 if (iface->autostart && !config_init)
272 interface_set_up(iface);
274 __interface_set_down(iface, true);
278 interface_add_user(struct interface_user *dep, struct interface *iface)
281 list_add(&dep->list, &iface_all_users);
286 list_add(&dep->list, &iface->users);
287 if (iface->state == IFS_UP)
288 dep->cb(dep, iface, IFEV_UP);
292 interface_remove_user(struct interface_user *dep)
294 list_del_init(&dep->list);
299 interface_add_assignment_classes(struct interface *iface, struct blob_attr *list)
301 struct blob_attr *cur;
304 blobmsg_for_each_attr(cur, list, rem) {
305 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
308 if (!blobmsg_check_attr(cur, NULL))
311 struct interface_assignment_class *c = malloc(sizeof(*c) + blobmsg_data_len(cur));
312 memcpy(c->name, blobmsg_data(cur), blobmsg_data_len(cur));
313 list_add(&c->head, &iface->assignment_classes);
318 interface_clear_assignment_classes(struct interface *iface)
320 while (!list_empty(&iface->assignment_classes)) {
321 struct interface_assignment_class *c = list_first_entry(&iface->assignment_classes,
322 struct interface_assignment_class, head);
329 interface_merge_assignment_data(struct interface *old, struct interface *new)
331 bool changed = (old->assignment_hint != new->assignment_hint ||
332 old->assignment_length != new->assignment_length ||
333 list_empty(&old->assignment_classes) != list_empty(&new->assignment_classes));
335 struct interface_assignment_class *c;
336 list_for_each_entry(c, &new->assignment_classes, head) {
337 // Compare list entries one-by-one to see if there was a change
338 if (list_empty(&old->assignment_classes)) // The new list is longer
344 struct interface_assignment_class *c_old = list_first_entry(&old->assignment_classes,
345 struct interface_assignment_class, head);
347 if (strcmp(c_old->name, c->name)) // An entry didn't match
350 list_del(&c_old->head);
354 // The old list was longer than the new one or the last entry didn't match
355 if (!list_empty(&old->assignment_classes)) {
356 interface_clear_assignment_classes(old);
360 list_splice_init(&new->assignment_classes, &old->assignment_classes);
363 old->assignment_hint = new->assignment_hint;
364 old->assignment_length = new->assignment_length;
365 interface_refresh_assignments(true);
370 interface_alias_cb(struct interface_user *dep, struct interface *iface, enum interface_event ev)
372 struct interface *alias = container_of(dep, struct interface, parent_iface);
373 struct device *dev = iface->l3_dev.dev;
380 interface_set_main_dev(alias, dev);
381 interface_set_available(alias, true);
384 interface_set_available(alias, false);
385 interface_set_main_dev(alias, NULL);
388 interface_remove_user(dep);
397 interface_claim_device(struct interface *iface)
399 struct interface *parent;
400 struct device *dev = NULL;
402 if (iface->parent_iface.iface)
403 interface_remove_user(&iface->parent_iface);
405 if (iface->parent_ifname) {
406 parent = vlist_find(&interfaces, iface->parent_ifname, parent, node);
407 iface->parent_iface.cb = interface_alias_cb;
408 interface_add_user(&iface->parent_iface, parent);
409 } else if (iface->ifname &&
410 !(iface->proto_handler->flags & PROTO_FLAG_NODEV)) {
411 dev = device_get(iface->ifname, true);
415 interface_set_main_dev(iface, dev);
417 if (iface->proto_handler->flags & PROTO_FLAG_INIT_AVAILABLE)
418 interface_set_available(iface, true);
422 interface_cleanup_state(struct interface *iface)
424 interface_set_available(iface, false);
426 interface_flush_state(iface);
427 interface_clear_errors(iface);
428 interface_set_proto_state(iface, NULL);
430 if (iface->main_dev.dev)
431 interface_set_main_dev(iface, NULL);
435 interface_cleanup(struct interface *iface)
437 struct interface_user *dep, *tmp;
439 if (iface->parent_iface.iface)
440 interface_remove_user(&iface->parent_iface);
442 list_for_each_entry_safe(dep, tmp, &iface->users, list)
443 interface_remove_user(dep);
445 interface_clear_assignment_classes(iface);
446 interface_ip_flush(&iface->config_ip);
447 interface_cleanup_state(iface);
451 interface_do_free(struct interface *iface)
453 interface_event(iface, IFEV_FREE);
454 interface_cleanup(iface);
456 netifd_ubus_remove_interface(iface);
457 avl_delete(&interfaces.avl, &iface->node.avl);
462 interface_do_reload(struct interface *iface)
464 interface_event(iface, IFEV_RELOAD);
465 interface_cleanup_state(iface);
466 proto_init_interface(iface, iface->config);
467 interface_claim_device(iface);
471 interface_handle_config_change(struct interface *iface)
473 enum interface_config_state state = iface->config_state;
475 iface->config_state = IFC_NORMAL;
480 interface_do_reload(iface);
483 interface_do_free(iface);
486 if (iface->autostart && iface->available)
487 interface_set_up(iface);
491 interface_proto_cb(struct interface_proto_state *state, enum interface_proto_event ev)
493 struct interface *iface = state->iface;
497 if (iface->state != IFS_SETUP) {
498 interface_event(iface, IFEV_UPDATE);
502 interface_ip_set_enabled(&iface->config_ip, true);
503 system_flush_routes();
504 iface->state = IFS_UP;
505 iface->start_time = system_get_rtime();
506 interface_event(iface, IFEV_UP);
507 netifd_log_message(L_NOTICE, "Interface '%s' is now up\n", iface->name);
510 if (iface->state == IFS_DOWN)
513 netifd_log_message(L_NOTICE, "Interface '%s' is now down\n", iface->name);
514 mark_interface_down(iface);
515 if (iface->main_dev.dev)
516 device_release(&iface->main_dev);
517 interface_handle_config_change(iface);
519 case IFPEV_LINK_LOST:
520 if (iface->state != IFS_UP)
523 netifd_log_message(L_NOTICE, "Interface '%s' has lost the connection\n", iface->name);
524 mark_interface_down(iface);
525 iface->state = IFS_SETUP;
529 interface_write_resolv_conf();
532 void interface_set_proto_state(struct interface *iface, struct interface_proto_state *state)
535 iface->proto->free(iface->proto);
538 iface->state = IFS_DOWN;
539 iface->proto = state;
543 state->proto_event = interface_proto_cb;
544 state->iface = iface;
548 interface_alloc(const char *name, struct blob_attr *config)
550 struct interface *iface;
551 struct blob_attr *tb[IFACE_ATTR_MAX];
552 struct blob_attr *cur;
553 const char *proto_name = NULL;
556 iface = calloc_a(sizeof(*iface), &iface_name, strlen(name) + 1);
557 iface->name = strcpy(iface_name, name);
558 INIT_LIST_HEAD(&iface->errors);
559 INIT_LIST_HEAD(&iface->users);
560 INIT_LIST_HEAD(&iface->hotplug_list);
561 INIT_LIST_HEAD(&iface->assignment_classes);
562 interface_ip_init(iface);
563 avl_init(&iface->data, avl_strcmp, false, NULL);
564 iface->config_ip.enabled = false;
566 iface->main_dev.cb = interface_cb;
568 blobmsg_parse(iface_attrs, IFACE_ATTR_MAX, tb,
569 blob_data(config), blob_len(config));
571 if ((cur = tb[IFACE_ATTR_PROTO]))
572 proto_name = blobmsg_data(cur);
574 proto_attach_interface(iface, proto_name);
576 iface->autostart = blobmsg_get_bool_default(tb[IFACE_ATTR_AUTO], true);
577 iface->proto_ip.no_defaultroute =
578 !blobmsg_get_bool_default(tb[IFACE_ATTR_DEFAULTROUTE], true);
579 iface->proto_ip.no_dns =
580 !blobmsg_get_bool_default(tb[IFACE_ATTR_PEERDNS], true);
582 if ((cur = tb[IFACE_ATTR_DNS]))
583 interface_add_dns_server_list(&iface->config_ip, cur);
585 if ((cur = tb[IFACE_ATTR_DNS_SEARCH]))
586 interface_add_dns_search_list(&iface->config_ip, cur);
588 if ((cur = tb[IFACE_ATTR_METRIC]))
589 iface->metric = blobmsg_get_u32(cur);
591 if ((cur = tb[IFACE_ATTR_IP6ASSIGN]))
592 iface->assignment_length = blobmsg_get_u32(cur);
594 iface->assignment_hint = -1;
595 if ((cur = tb[IFACE_ATTR_IP6HINT]))
596 iface->assignment_hint = strtol(blobmsg_get_string(cur), NULL, 16) &
597 ~((1 << (64 - iface->assignment_length)) - 1);
599 if ((cur = tb[IFACE_ATTR_IP6CLASS]))
600 interface_add_assignment_classes(iface, cur);
603 if ((cur = tb[IFACE_ATTR_IP4TABLE])) {
604 if (!system_resolve_rt_table(blobmsg_data(cur), &iface->ip4table))
605 DPRINTF("Failed to resolve routing table: %s\n", (char *) blobmsg_data(cur));
608 // Set a default exteranl routing table for IPv6 to do source-based-filtering
609 struct interface *iface_old = vlist_find(&interfaces, name, iface_old, node);
610 if (iface_old && iface_old->ip6table > 1000 && iface_old->ip6table < 2000)
611 iface->ip6table = iface_old->ip6table;
613 iface->ip6table = 1000 + ++interface_serial;
615 if ((cur = tb[IFACE_ATTR_IP6TABLE])) {
616 if (!system_resolve_rt_table(blobmsg_data(cur), &iface->ip6table))
617 DPRINTF("Failed to resolve routing table: %s\n", (char *) blobmsg_data(cur));
620 iface->proto_ip.no_delegation = !blobmsg_get_bool_default(tb[IFACE_ATTR_DELEGATE], true);
622 iface->config_autostart = iface->autostart;
626 void interface_set_dynamic(struct interface *iface)
628 iface->dynamic = true;
629 iface->node.version = -1; // Don't delete on reload
632 static bool __interface_add(struct interface *iface, struct blob_attr *config, bool alias)
634 struct blob_attr *tb[IFACE_ATTR_MAX];
635 struct blob_attr *cur;
637 blobmsg_parse(iface_attrs, IFACE_ATTR_MAX, tb,
638 blob_data(config), blob_len(config));
641 if ((cur = tb[IFACE_ATTR_INTERFACE]))
642 iface->parent_ifname = blobmsg_data(cur);
644 if (!iface->parent_ifname)
647 if ((cur = tb[IFACE_ATTR_IFNAME]))
648 iface->ifname = blobmsg_data(cur);
652 iface->config = config;
653 vlist_add(&interfaces, &iface->node, iface->name);
658 interface_add(struct interface *iface, struct blob_attr *config)
660 __interface_add(iface, config, false);
664 interface_add_alias(struct interface *iface, struct blob_attr *config)
666 if (iface->proto_handler->flags & PROTO_FLAG_NODEV)
669 return __interface_add(iface, config, true);
673 interface_set_l3_dev(struct interface *iface, struct device *dev)
675 bool enabled = iface->config_ip.enabled;
676 bool claimed = iface->l3_dev.claimed;
678 if (iface->l3_dev.dev == dev)
681 interface_ip_set_enabled(&iface->config_ip, false);
682 interface_ip_flush(&iface->proto_ip);
683 device_add_user(&iface->l3_dev, dev);
687 device_claim(&iface->l3_dev);
688 interface_ip_set_enabled(&iface->config_ip, enabled);
693 interface_set_main_dev(struct interface *iface, struct device *dev)
695 bool set_l3 = (iface->main_dev.dev == iface->l3_dev.dev);
696 bool claimed = iface->l3_dev.claimed;
698 if (iface->main_dev.dev == dev)
702 interface_set_l3_dev(iface, dev);
704 device_add_user(&iface->main_dev, dev);
709 device_claim(&iface->l3_dev);
711 if (!iface->l3_dev.dev)
712 interface_set_l3_dev(iface, dev);
716 interface_remove_link(struct interface *iface, struct device *dev)
718 struct device *mdev = iface->main_dev.dev;
720 if (mdev && mdev->hotplug_ops)
721 return mdev->hotplug_ops->del(mdev, dev);
723 if (!iface->main_dev.hotplug)
724 return UBUS_STATUS_INVALID_ARGUMENT;
726 if (dev != iface->main_dev.dev)
727 return UBUS_STATUS_INVALID_ARGUMENT;
729 device_remove_user(&iface->main_dev);
734 interface_add_link(struct interface *iface, struct device *dev)
736 struct device *mdev = iface->main_dev.dev;
741 if (iface->main_dev.hotplug)
742 device_remove_user(&iface->main_dev);
745 if (mdev->hotplug_ops)
746 return mdev->hotplug_ops->add(mdev, dev);
748 return UBUS_STATUS_NOT_SUPPORTED;
751 interface_set_main_dev(iface, dev);
752 iface->main_dev.hotplug = true;
757 interface_handle_link(struct interface *iface, const char *name, bool add)
764 dev = device_get(name, add ? 2 : 0);
766 ret = UBUS_STATUS_NOT_FOUND;
771 device_set_present(dev, true);
772 if (iface->device_config)
773 device_set_config(dev, &simple_device_type, iface->config);
775 system_if_apply_settings(dev, &dev->settings);
776 ret = interface_add_link(iface, dev);
778 ret = interface_remove_link(iface, dev);
788 interface_set_up(struct interface *iface)
792 iface->autostart = true;
794 if (iface->state != IFS_DOWN)
797 interface_clear_errors(iface);
798 if (!iface->available) {
799 interface_add_error(iface, "interface", "NO_DEVICE", NULL, 0);
803 if (iface->main_dev.dev) {
804 ret = device_claim(&iface->main_dev);
809 iface->state = IFS_SETUP;
810 ret = interface_proto_event(iface->proto, PROTO_CMD_SETUP, false);
812 mark_interface_down(iface);
820 interface_set_down(struct interface *iface)
823 vlist_for_each_element(&interfaces, iface, node)
824 __interface_set_down(iface, false);
826 iface->autostart = false;
827 __interface_set_down(iface, false);
834 interface_start_pending(void)
836 struct interface *iface;
838 vlist_for_each_element(&interfaces, iface, node) {
839 if (iface->available && iface->autostart)
840 interface_set_up(iface);
845 set_config_state(struct interface *iface, enum interface_config_state s)
847 iface->config_state = s;
848 if (iface->state == IFS_DOWN)
849 interface_handle_config_change(iface);
851 __interface_set_down(iface, false);
855 interface_update_start(struct interface *iface)
858 interface_ip_update_start(&iface->proto_ip);
862 interface_update_complete(struct interface *iface)
864 interface_ip_update_complete(&iface->proto_ip);
868 interface_replace_dns(struct interface_ip_settings *new, struct interface_ip_settings *old)
870 vlist_simple_replace(&new->dns_servers, &old->dns_servers);
871 vlist_simple_replace(&new->dns_search, &old->dns_search);
875 interface_change_config(struct interface *if_old, struct interface *if_new)
877 struct blob_attr *old_config = if_old->config;
878 bool reload = false, reload_ip = false;
880 #define FIELD_CHANGED_STR(field) \
881 ((!!if_old->field != !!if_new->field) || \
883 strcmp(if_old->field, if_new->field) != 0))
885 if (FIELD_CHANGED_STR(parent_ifname)) {
886 if (if_old->parent_iface.iface)
887 interface_remove_user(&if_old->parent_iface);
891 if (FIELD_CHANGED_STR(ifname) ||
892 if_old->proto_handler != if_new->proto_handler)
895 if (!if_old->proto_handler->config_params)
896 D(INTERFACE, "No config parameters for interface '%s'\n",
898 else if (!uci_blob_check_equal(if_old->config, if_new->config,
899 if_old->proto_handler->config_params))
902 #define UPDATE(field, __var) ({ \
903 bool __changed = (if_old->field != if_new->field); \
904 if_old->field = if_new->field; \
905 __var |= __changed; \
908 if_old->config = if_new->config;
909 if (!if_old->config_autostart && if_new->config_autostart)
910 if_old->autostart = true;
912 if_old->device_config = if_new->device_config;
913 if_old->config_autostart = if_new->config_autostart;
914 if_old->ifname = if_new->ifname;
915 if_old->parent_ifname = if_new->parent_ifname;
916 if_old->proto_handler = if_new->proto_handler;
918 if_old->proto_ip.no_dns = if_new->proto_ip.no_dns;
919 interface_replace_dns(&if_old->config_ip, &if_new->config_ip);
921 UPDATE(metric, reload_ip);
922 UPDATE(proto_ip.no_defaultroute, reload_ip);
923 UPDATE(ip4table, reload_ip);
924 UPDATE(ip6table, reload_ip);
925 interface_merge_assignment_data(if_old, if_new);
930 D(INTERFACE, "Reload interface '%s' because of config changes\n",
932 interface_clear_errors(if_old);
933 set_config_state(if_old, IFC_RELOAD);
938 interface_ip_set_enabled(&if_old->config_ip, false);
939 interface_ip_set_enabled(&if_old->proto_ip, false);
940 interface_ip_set_enabled(&if_old->proto_ip, if_new->proto_ip.enabled);
941 interface_ip_set_enabled(&if_old->config_ip, if_new->config_ip.enabled);
944 interface_write_resolv_conf();
947 if_new->config = NULL;
948 interface_cleanup(if_new);
954 interface_update(struct vlist_tree *tree, struct vlist_node *node_new,
955 struct vlist_node *node_old)
957 struct interface *if_old = container_of(node_old, struct interface, node);
958 struct interface *if_new = container_of(node_new, struct interface, node);
960 if (node_old && node_new) {
961 D(INTERFACE, "Update interface '%s'\n", if_new->name);
962 interface_change_config(if_old, if_new);
963 } else if (node_old) {
964 D(INTERFACE, "Remove interface '%s'\n", if_old->name);
965 set_config_state(if_old, IFC_REMOVE);
966 } else if (node_new) {
967 D(INTERFACE, "Create interface '%s'\n", if_new->name);
968 proto_init_interface(if_new, if_new->config);
969 interface_claim_device(if_new);
970 netifd_ubus_add_interface(if_new);
976 interface_init_list(void)
978 vlist_init(&interfaces, avl_strcmp, interface_update);
979 interfaces.keep_old = true;
980 interfaces.no_delete = true;