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);
34 IFACE_ATTR_DEFAULTROUTE,
37 IFACE_ATTR_DNS_SEARCH,
49 static const struct blobmsg_policy iface_attrs[IFACE_ATTR_MAX] = {
50 [IFACE_ATTR_PROTO] = { .name = "proto", .type = BLOBMSG_TYPE_STRING },
51 [IFACE_ATTR_IFNAME] = { .name = "ifname", .type = BLOBMSG_TYPE_STRING },
52 [IFACE_ATTR_AUTO] = { .name = "auto", .type = BLOBMSG_TYPE_BOOL },
53 [IFACE_ATTR_DEFAULTROUTE] = { .name = "defaultroute", .type = BLOBMSG_TYPE_BOOL },
54 [IFACE_ATTR_PEERDNS] = { .name = "peerdns", .type = BLOBMSG_TYPE_BOOL },
55 [IFACE_ATTR_METRIC] = { .name = "metric", .type = BLOBMSG_TYPE_INT32 },
56 [IFACE_ATTR_DNS] = { .name = "dns", .type = BLOBMSG_TYPE_ARRAY },
57 [IFACE_ATTR_DNS_SEARCH] = { .name = "dns_search", .type = BLOBMSG_TYPE_ARRAY },
58 [IFACE_ATTR_INTERFACE] = { .name = "interface", .type = BLOBMSG_TYPE_STRING },
59 [IFACE_ATTR_IP6ASSIGN] = { .name = "ip6assign", .type = BLOBMSG_TYPE_INT32 },
60 [IFACE_ATTR_IP6HINT] = { .name = "ip6hint", .type = BLOBMSG_TYPE_STRING },
61 [IFACE_ATTR_IP4TABLE] = { .name = "ip4table", .type = BLOBMSG_TYPE_STRING },
62 [IFACE_ATTR_IP6TABLE] = { .name = "ip6table", .type = BLOBMSG_TYPE_STRING },
63 [IFACE_ATTR_IP6CLASS] = { .name = "ip6class", .type = BLOBMSG_TYPE_ARRAY },
64 [IFACE_ATTR_DELEGATE] = { .name = "delegate", .type = BLOBMSG_TYPE_BOOL },
67 static const struct uci_blob_param_info iface_attr_info[IFACE_ATTR_MAX] = {
68 [IFACE_ATTR_DNS] = { .type = BLOBMSG_TYPE_STRING },
69 [IFACE_ATTR_IP6CLASS] = { .type = BLOBMSG_TYPE_STRING },
72 const struct uci_blob_param_list interface_attr_list = {
73 .n_params = IFACE_ATTR_MAX,
74 .params = iface_attrs,
75 .info = iface_attr_info,
79 interface_clear_errors(struct interface *iface)
81 struct interface_error *error, *tmp;
83 list_for_each_entry_safe(error, tmp, &iface->errors, list) {
84 list_del(&error->list);
89 void interface_add_error(struct interface *iface, const char *subsystem,
90 const char *code, const char **data, int n_data)
92 struct interface_error *error;
95 char *dest, *d_subsys, *d_code;
98 len = n_data * sizeof(char *);
99 datalen = alloca(len);
100 for (i = 0; i < n_data; i++) {
101 datalen[i] = strlen(data[i]) + 1;
106 error = calloc_a(sizeof(*error) + sizeof(char *) + len,
107 &d_subsys, subsystem ? strlen(subsystem) + 1 : 0,
108 &d_code, code ? strlen(code) + 1 : 0);
112 list_add_tail(&error->list, &iface->errors);
114 dest = (char *) &error->data[n_data + 1];
115 for (i = 0; i < n_data; i++) {
116 error->data[i] = dest;
117 memcpy(dest, data[i], datalen[i]);
120 error->data[n_data++] = NULL;
123 error->subsystem = strcpy(d_subsys, subsystem);
126 error->code = strcpy(d_code, code);
130 interface_data_del(struct interface *iface, struct interface_data *data)
132 avl_delete(&iface->data, &data->node);
137 interface_data_flush(struct interface *iface)
139 struct interface_data *d, *tmp;
141 avl_for_each_element_safe(&iface->data, d, node, tmp)
142 interface_data_del(iface, d);
146 interface_add_data(struct interface *iface, const struct blob_attr *data)
148 struct interface_data *n, *o;
150 if (!blobmsg_check_attr(data, true))
151 return UBUS_STATUS_INVALID_ARGUMENT;
153 const char *name = blobmsg_name(data);
154 unsigned len = blob_pad_len(data);
156 o = avl_find_element(&iface->data, name, o, node);
158 if (blob_pad_len(o->data) == len && !memcmp(o->data, data, len))
161 interface_data_del(iface, o);
164 n = calloc(1, sizeof(*n) + len);
165 memcpy(n->data, data, len);
166 n->node.key = blobmsg_name(n->data);
167 avl_insert(&iface->data, &n->node);
169 iface->updated |= IUF_DATA;
174 interface_event(struct interface *iface, enum interface_event ev)
176 struct interface_user *dep, *tmp;
177 struct device *adev = NULL;
179 list_for_each_entry_safe(dep, tmp, &iface->users, list)
180 dep->cb(dep, iface, ev);
182 list_for_each_entry_safe(dep, tmp, &iface_all_users, list)
183 dep->cb(dep, iface, ev);
187 adev = iface->l3_dev.dev;
190 alias_notify_device(iface->name, adev);
198 interface_flush_state(struct interface *iface)
200 if (iface->l3_dev.dev)
201 device_release(&iface->l3_dev);
202 interface_data_flush(iface);
206 mark_interface_down(struct interface *iface)
208 enum interface_state state = iface->state;
210 if (state == IFS_DOWN)
213 iface->state = IFS_DOWN;
215 interface_event(iface, IFEV_DOWN);
216 interface_ip_set_enabled(&iface->config_ip, false);
217 interface_ip_flush(&iface->proto_ip);
218 interface_flush_state(iface);
219 system_flush_routes();
223 __interface_set_down(struct interface *iface, bool force)
225 enum interface_state state = iface->state;
229 iface->state = IFS_TEARDOWN;
231 interface_event(iface, IFEV_DOWN);
233 interface_proto_event(iface->proto, PROTO_CMD_TEARDOWN, force);
235 interface_flush_state(iface);
238 vlist_delete(&interfaces, &iface->node);
242 if (iface->main_dev.dev)
243 device_release(&iface->main_dev);
251 __interface_set_up(struct interface *iface)
255 netifd_log_message(L_NOTICE, "Interface '%s' is setting up now\n", iface->name);
257 iface->state = IFS_SETUP;
258 ret = interface_proto_event(iface->proto, PROTO_CMD_SETUP, false);
260 mark_interface_down(iface);
266 interface_check_state(struct interface *iface)
268 switch (iface->state) {
270 if (!iface->enabled || !iface->link_state) {
271 mark_interface_down(iface);
272 interface_proto_event(iface->proto, PROTO_CMD_TEARDOWN, false);
276 if (iface->autostart && iface->enabled && iface->link_state && !config_init)
277 __interface_set_up(iface);
285 interface_set_enabled(struct interface *iface, bool new_state)
287 if (iface->enabled == new_state)
290 netifd_log_message(L_NOTICE, "Interface '%s' is %s\n", iface->name, new_state ? "enabled" : "disabled");
291 iface->enabled = new_state;
292 interface_check_state(iface);
296 interface_set_link_state(struct interface *iface, bool new_state)
298 if (iface->link_state == new_state)
301 netifd_log_message(L_NOTICE, "Interface '%s' has link connectivity %s\n", iface->name, new_state ? "" : "loss");
302 iface->link_state = new_state;
303 interface_check_state(iface);
307 interface_cb(struct device_user *dep, enum device_event ev)
309 struct interface *iface;
310 bool new_state = false;
312 iface = container_of(dep, struct interface, main_dev);
316 case DEV_EVENT_REMOVE:
317 interface_set_available(iface, new_state);
318 if (!new_state && dep->dev->external)
319 interface_set_main_dev(iface, NULL);
324 interface_set_enabled(iface, new_state);
326 case DEV_EVENT_LINK_UP:
328 case DEV_EVENT_LINK_DOWN:
329 interface_set_link_state(iface, new_state);
337 interface_set_available(struct interface *iface, bool new_state)
339 if (iface->available == new_state)
342 D(INTERFACE, "Interface '%s', available=%d\n", iface->name, new_state);
343 iface->available = new_state;
346 if (iface->autostart && !config_init)
347 interface_set_up(iface);
349 __interface_set_down(iface, true);
353 interface_add_user(struct interface_user *dep, struct interface *iface)
356 list_add(&dep->list, &iface_all_users);
361 list_add(&dep->list, &iface->users);
362 if (iface->state == IFS_UP)
363 dep->cb(dep, iface, IFEV_UP);
367 interface_remove_user(struct interface_user *dep)
369 list_del_init(&dep->list);
374 interface_add_assignment_classes(struct interface *iface, struct blob_attr *list)
376 struct blob_attr *cur;
379 blobmsg_for_each_attr(cur, list, rem) {
380 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
383 if (!blobmsg_check_attr(cur, NULL))
386 struct interface_assignment_class *c = malloc(sizeof(*c) + blobmsg_data_len(cur));
387 memcpy(c->name, blobmsg_data(cur), blobmsg_data_len(cur));
388 list_add(&c->head, &iface->assignment_classes);
393 interface_clear_assignment_classes(struct interface *iface)
395 while (!list_empty(&iface->assignment_classes)) {
396 struct interface_assignment_class *c = list_first_entry(&iface->assignment_classes,
397 struct interface_assignment_class, head);
404 interface_merge_assignment_data(struct interface *old, struct interface *new)
406 bool changed = (old->assignment_hint != new->assignment_hint ||
407 old->assignment_length != new->assignment_length ||
408 list_empty(&old->assignment_classes) != list_empty(&new->assignment_classes));
410 struct interface_assignment_class *c;
411 list_for_each_entry(c, &new->assignment_classes, head) {
412 // Compare list entries one-by-one to see if there was a change
413 if (list_empty(&old->assignment_classes)) // The new list is longer
419 struct interface_assignment_class *c_old = list_first_entry(&old->assignment_classes,
420 struct interface_assignment_class, head);
422 if (strcmp(c_old->name, c->name)) // An entry didn't match
425 list_del(&c_old->head);
429 // The old list was longer than the new one or the last entry didn't match
430 if (!list_empty(&old->assignment_classes)) {
431 interface_clear_assignment_classes(old);
435 list_splice_init(&new->assignment_classes, &old->assignment_classes);
438 old->assignment_hint = new->assignment_hint;
439 old->assignment_length = new->assignment_length;
440 interface_refresh_assignments(true);
445 interface_alias_cb(struct interface_user *dep, struct interface *iface, enum interface_event ev)
447 struct interface *alias = container_of(dep, struct interface, parent_iface);
448 struct device *dev = iface->l3_dev.dev;
455 interface_set_main_dev(alias, dev);
456 interface_set_available(alias, true);
459 interface_set_available(alias, false);
460 interface_set_main_dev(alias, NULL);
463 interface_remove_user(dep);
472 interface_claim_device(struct interface *iface)
474 struct interface *parent;
475 struct device *dev = NULL;
477 if (iface->parent_iface.iface)
478 interface_remove_user(&iface->parent_iface);
480 if (iface->parent_ifname) {
481 parent = vlist_find(&interfaces, iface->parent_ifname, parent, node);
482 iface->parent_iface.cb = interface_alias_cb;
483 interface_add_user(&iface->parent_iface, parent);
484 } else if (iface->ifname &&
485 !(iface->proto_handler->flags & PROTO_FLAG_NODEV)) {
486 dev = device_get(iface->ifname, true);
490 interface_set_main_dev(iface, dev);
492 if (iface->proto_handler->flags & PROTO_FLAG_INIT_AVAILABLE)
493 interface_set_available(iface, true);
497 interface_cleanup_state(struct interface *iface)
499 interface_set_available(iface, false);
501 interface_flush_state(iface);
502 interface_clear_errors(iface);
503 interface_set_proto_state(iface, NULL);
505 if (iface->main_dev.dev)
506 interface_set_main_dev(iface, NULL);
510 interface_cleanup(struct interface *iface)
512 struct interface_user *dep, *tmp;
514 if (iface->parent_iface.iface)
515 interface_remove_user(&iface->parent_iface);
517 list_for_each_entry_safe(dep, tmp, &iface->users, list)
518 interface_remove_user(dep);
520 interface_clear_assignment_classes(iface);
521 interface_ip_flush(&iface->config_ip);
522 interface_cleanup_state(iface);
526 interface_do_free(struct interface *iface)
528 interface_event(iface, IFEV_FREE);
529 interface_cleanup(iface);
531 netifd_ubus_remove_interface(iface);
532 avl_delete(&interfaces.avl, &iface->node.avl);
537 interface_do_reload(struct interface *iface)
539 interface_event(iface, IFEV_RELOAD);
540 interface_cleanup_state(iface);
541 proto_init_interface(iface, iface->config);
542 interface_claim_device(iface);
546 interface_handle_config_change(struct interface *iface)
548 enum interface_config_state state = iface->config_state;
550 iface->config_state = IFC_NORMAL;
555 interface_do_reload(iface);
558 interface_do_free(iface);
561 if (iface->autostart && iface->available)
562 interface_set_up(iface);
566 interface_proto_cb(struct interface_proto_state *state, enum interface_proto_event ev)
568 struct interface *iface = state->iface;
572 if (iface->state != IFS_SETUP) {
573 interface_event(iface, IFEV_UPDATE);
577 interface_ip_set_enabled(&iface->config_ip, true);
578 system_flush_routes();
579 iface->state = IFS_UP;
580 iface->start_time = system_get_rtime();
581 interface_event(iface, IFEV_UP);
582 netifd_log_message(L_NOTICE, "Interface '%s' is now up\n", iface->name);
585 if (iface->state == IFS_DOWN)
588 netifd_log_message(L_NOTICE, "Interface '%s' is now down\n", iface->name);
589 mark_interface_down(iface);
590 if (iface->main_dev.dev)
591 device_release(&iface->main_dev);
592 interface_handle_config_change(iface);
594 case IFPEV_LINK_LOST:
595 if (iface->state != IFS_UP)
598 netifd_log_message(L_NOTICE, "Interface '%s' has lost the connection\n", iface->name);
599 mark_interface_down(iface);
600 iface->state = IFS_SETUP;
604 interface_write_resolv_conf();
607 void interface_set_proto_state(struct interface *iface, struct interface_proto_state *state)
610 iface->proto->free(iface->proto);
613 iface->state = IFS_DOWN;
614 iface->proto = state;
618 state->proto_event = interface_proto_cb;
619 state->iface = iface;
623 interface_alloc(const char *name, struct blob_attr *config)
625 struct interface *iface;
626 struct blob_attr *tb[IFACE_ATTR_MAX];
627 struct blob_attr *cur;
628 const char *proto_name = NULL;
631 iface = calloc_a(sizeof(*iface), &iface_name, strlen(name) + 1);
632 iface->name = strcpy(iface_name, name);
633 INIT_LIST_HEAD(&iface->errors);
634 INIT_LIST_HEAD(&iface->users);
635 INIT_LIST_HEAD(&iface->hotplug_list);
636 INIT_LIST_HEAD(&iface->assignment_classes);
637 interface_ip_init(iface);
638 avl_init(&iface->data, avl_strcmp, false, NULL);
639 iface->config_ip.enabled = false;
641 iface->main_dev.cb = interface_cb;
643 blobmsg_parse(iface_attrs, IFACE_ATTR_MAX, tb,
644 blob_data(config), blob_len(config));
646 if ((cur = tb[IFACE_ATTR_PROTO]))
647 proto_name = blobmsg_data(cur);
649 proto_attach_interface(iface, proto_name);
651 iface->autostart = blobmsg_get_bool_default(tb[IFACE_ATTR_AUTO], true);
652 iface->proto_ip.no_defaultroute =
653 !blobmsg_get_bool_default(tb[IFACE_ATTR_DEFAULTROUTE], true);
654 iface->proto_ip.no_dns =
655 !blobmsg_get_bool_default(tb[IFACE_ATTR_PEERDNS], true);
657 if ((cur = tb[IFACE_ATTR_DNS]))
658 interface_add_dns_server_list(&iface->config_ip, cur);
660 if ((cur = tb[IFACE_ATTR_DNS_SEARCH]))
661 interface_add_dns_search_list(&iface->config_ip, cur);
663 if ((cur = tb[IFACE_ATTR_METRIC]))
664 iface->metric = blobmsg_get_u32(cur);
666 if ((cur = tb[IFACE_ATTR_IP6ASSIGN]))
667 iface->assignment_length = blobmsg_get_u32(cur);
669 iface->assignment_hint = -1;
670 if ((cur = tb[IFACE_ATTR_IP6HINT]))
671 iface->assignment_hint = strtol(blobmsg_get_string(cur), NULL, 16) &
672 ~((1 << (64 - iface->assignment_length)) - 1);
674 if ((cur = tb[IFACE_ATTR_IP6CLASS]))
675 interface_add_assignment_classes(iface, cur);
678 if ((cur = tb[IFACE_ATTR_IP4TABLE])) {
679 if (!system_resolve_rt_table(blobmsg_data(cur), &iface->ip4table))
680 DPRINTF("Failed to resolve routing table: %s\n", (char *) blobmsg_data(cur));
683 if ((cur = tb[IFACE_ATTR_IP6TABLE])) {
684 if (!system_resolve_rt_table(blobmsg_data(cur), &iface->ip6table))
685 DPRINTF("Failed to resolve routing table: %s\n", (char *) blobmsg_data(cur));
688 iface->proto_ip.no_delegation = !blobmsg_get_bool_default(tb[IFACE_ATTR_DELEGATE], true);
690 iface->config_autostart = iface->autostart;
694 void interface_set_dynamic(struct interface *iface)
696 iface->dynamic = true;
697 iface->node.version = -1; // Don't delete on reload
700 static bool __interface_add(struct interface *iface, struct blob_attr *config, bool alias)
702 struct blob_attr *tb[IFACE_ATTR_MAX];
703 struct blob_attr *cur;
705 blobmsg_parse(iface_attrs, IFACE_ATTR_MAX, tb,
706 blob_data(config), blob_len(config));
709 if ((cur = tb[IFACE_ATTR_INTERFACE]))
710 iface->parent_ifname = blobmsg_data(cur);
712 if (!iface->parent_ifname)
715 if ((cur = tb[IFACE_ATTR_IFNAME]))
716 iface->ifname = blobmsg_data(cur);
720 iface->config = config;
721 vlist_add(&interfaces, &iface->node, iface->name);
726 interface_add(struct interface *iface, struct blob_attr *config)
728 __interface_add(iface, config, false);
732 interface_add_alias(struct interface *iface, struct blob_attr *config)
734 if (iface->proto_handler->flags & PROTO_FLAG_NODEV)
737 return __interface_add(iface, config, true);
741 interface_set_l3_dev(struct interface *iface, struct device *dev)
743 bool enabled = iface->config_ip.enabled;
744 bool claimed = iface->l3_dev.claimed;
746 if (iface->l3_dev.dev == dev)
749 interface_ip_set_enabled(&iface->config_ip, false);
750 interface_ip_flush(&iface->proto_ip);
751 device_add_user(&iface->l3_dev, dev);
755 device_claim(&iface->l3_dev);
756 interface_ip_set_enabled(&iface->config_ip, enabled);
761 interface_set_main_dev(struct interface *iface, struct device *dev)
763 bool set_l3 = (!dev || iface->main_dev.dev == iface->l3_dev.dev);
764 bool claimed = iface->l3_dev.claimed;
766 if (iface->main_dev.dev == dev)
770 interface_set_l3_dev(iface, dev);
772 device_add_user(&iface->main_dev, dev);
774 interface_set_link_state(iface, false);
779 device_claim(&iface->l3_dev);
781 if (!iface->l3_dev.dev)
782 interface_set_l3_dev(iface, dev);
786 interface_remove_link(struct interface *iface, struct device *dev)
788 struct device *mdev = iface->main_dev.dev;
790 if (mdev && mdev->hotplug_ops)
791 return mdev->hotplug_ops->del(mdev, dev);
793 if (!iface->main_dev.hotplug)
794 return UBUS_STATUS_INVALID_ARGUMENT;
796 if (dev != iface->main_dev.dev)
797 return UBUS_STATUS_INVALID_ARGUMENT;
799 device_remove_user(&iface->main_dev);
804 interface_add_link(struct interface *iface, struct device *dev)
806 struct device *mdev = iface->main_dev.dev;
811 if (iface->main_dev.hotplug)
812 device_remove_user(&iface->main_dev);
815 if (mdev->hotplug_ops)
816 return mdev->hotplug_ops->add(mdev, dev);
818 return UBUS_STATUS_NOT_SUPPORTED;
821 interface_set_main_dev(iface, dev);
822 iface->main_dev.hotplug = true;
827 interface_handle_link(struct interface *iface, const char *name, bool add)
834 dev = device_get(name, add ? 2 : 0);
836 ret = UBUS_STATUS_NOT_FOUND;
841 device_set_present(dev, true);
842 if (iface->device_config)
843 device_set_config(dev, &simple_device_type, iface->config);
845 system_if_apply_settings(dev, &dev->settings, dev->settings.flags);
846 ret = interface_add_link(iface, dev);
848 ret = interface_remove_link(iface, dev);
858 interface_set_up(struct interface *iface)
862 iface->autostart = true;
864 if (iface->state != IFS_DOWN)
867 interface_clear_errors(iface);
868 if (!iface->available) {
869 interface_add_error(iface, "interface", "NO_DEVICE", NULL, 0);
873 if (iface->main_dev.dev) {
874 ret = device_claim(&iface->main_dev);
876 interface_check_state(iface);
879 ret = __interface_set_up(iface);
885 interface_set_down(struct interface *iface)
888 vlist_for_each_element(&interfaces, iface, node)
889 __interface_set_down(iface, false);
891 iface->autostart = false;
892 __interface_set_down(iface, false);
899 interface_start_pending(void)
901 struct interface *iface;
903 vlist_for_each_element(&interfaces, iface, node) {
904 if (iface->available && iface->autostart)
905 interface_set_up(iface);
910 set_config_state(struct interface *iface, enum interface_config_state s)
912 iface->config_state = s;
913 if (iface->state == IFS_DOWN)
914 interface_handle_config_change(iface);
916 __interface_set_down(iface, false);
920 interface_update_start(struct interface *iface)
923 interface_ip_update_start(&iface->proto_ip);
927 interface_update_complete(struct interface *iface)
929 interface_ip_update_complete(&iface->proto_ip);
933 interface_replace_dns(struct interface_ip_settings *new, struct interface_ip_settings *old)
935 vlist_simple_replace(&new->dns_servers, &old->dns_servers);
936 vlist_simple_replace(&new->dns_search, &old->dns_search);
940 interface_change_config(struct interface *if_old, struct interface *if_new)
942 struct blob_attr *old_config = if_old->config;
943 bool reload = false, reload_ip = false;
945 #define FIELD_CHANGED_STR(field) \
946 ((!!if_old->field != !!if_new->field) || \
948 strcmp(if_old->field, if_new->field) != 0))
950 if (FIELD_CHANGED_STR(parent_ifname)) {
951 if (if_old->parent_iface.iface)
952 interface_remove_user(&if_old->parent_iface);
956 if (FIELD_CHANGED_STR(ifname) ||
957 if_old->proto_handler != if_new->proto_handler)
960 if (!if_old->proto_handler->config_params)
961 D(INTERFACE, "No config parameters for interface '%s'\n",
963 else if (!uci_blob_check_equal(if_old->config, if_new->config,
964 if_old->proto_handler->config_params))
967 #define UPDATE(field, __var) ({ \
968 bool __changed = (if_old->field != if_new->field); \
969 if_old->field = if_new->field; \
970 __var |= __changed; \
973 if_old->config = if_new->config;
974 if (!if_old->config_autostart && if_new->config_autostart)
975 if_old->autostart = true;
977 if_old->device_config = if_new->device_config;
978 if_old->config_autostart = if_new->config_autostart;
979 if_old->ifname = if_new->ifname;
980 if_old->parent_ifname = if_new->parent_ifname;
981 if_old->proto_handler = if_new->proto_handler;
983 if_old->proto_ip.no_dns = if_new->proto_ip.no_dns;
984 interface_replace_dns(&if_old->config_ip, &if_new->config_ip);
986 UPDATE(metric, reload_ip);
987 UPDATE(proto_ip.no_defaultroute, reload_ip);
988 UPDATE(ip4table, reload_ip);
989 UPDATE(ip6table, reload_ip);
990 interface_merge_assignment_data(if_old, if_new);
995 D(INTERFACE, "Reload interface '%s' because of config changes\n",
997 interface_clear_errors(if_old);
998 set_config_state(if_old, IFC_RELOAD);
1003 interface_ip_set_enabled(&if_old->config_ip, false);
1004 interface_ip_set_enabled(&if_old->proto_ip, false);
1005 interface_ip_set_enabled(&if_old->proto_ip, if_new->proto_ip.enabled);
1006 interface_ip_set_enabled(&if_old->config_ip, if_new->config_ip.enabled);
1009 interface_write_resolv_conf();
1012 if_new->config = NULL;
1013 interface_cleanup(if_new);
1019 interface_update(struct vlist_tree *tree, struct vlist_node *node_new,
1020 struct vlist_node *node_old)
1022 struct interface *if_old = container_of(node_old, struct interface, node);
1023 struct interface *if_new = container_of(node_new, struct interface, node);
1025 if (node_old && node_new) {
1026 D(INTERFACE, "Update interface '%s'\n", if_new->name);
1027 interface_change_config(if_old, if_new);
1028 } else if (node_old) {
1029 D(INTERFACE, "Remove interface '%s'\n", if_old->name);
1030 set_config_state(if_old, IFC_REMOVE);
1031 } else if (node_new) {
1032 D(INTERFACE, "Create interface '%s'\n", if_new->name);
1033 proto_init_interface(if_new, if_new->config);
1034 interface_claim_device(if_new);
1035 netifd_ubus_add_interface(if_new);
1041 interface_init_list(void)
1043 vlist_init(&interfaces, avl_strcmp, interface_update);
1044 interfaces.keep_old = true;
1045 interfaces.no_delete = true;