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,
46 IFACE_ATTR_FORCE_LINK,
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 },
66 [IFACE_ATTR_FORCE_LINK] = { .name = "force_link", .type = BLOBMSG_TYPE_BOOL },
69 static const struct uci_blob_param_info iface_attr_info[IFACE_ATTR_MAX] = {
70 [IFACE_ATTR_DNS] = { .type = BLOBMSG_TYPE_STRING },
71 [IFACE_ATTR_IP6CLASS] = { .type = BLOBMSG_TYPE_STRING },
74 const struct uci_blob_param_list interface_attr_list = {
75 .n_params = IFACE_ATTR_MAX,
76 .params = iface_attrs,
77 .info = iface_attr_info,
81 interface_clear_errors(struct interface *iface)
83 struct interface_error *error, *tmp;
85 list_for_each_entry_safe(error, tmp, &iface->errors, list) {
86 list_del(&error->list);
91 void interface_add_error(struct interface *iface, const char *subsystem,
92 const char *code, const char **data, int n_data)
94 struct interface_error *error;
97 char *dest, *d_subsys, *d_code;
100 len = n_data * sizeof(char *);
101 datalen = alloca(len);
102 for (i = 0; i < n_data; i++) {
103 datalen[i] = strlen(data[i]) + 1;
108 error = calloc_a(sizeof(*error) + sizeof(char *) + len,
109 &d_subsys, subsystem ? strlen(subsystem) + 1 : 0,
110 &d_code, code ? strlen(code) + 1 : 0);
114 list_add_tail(&error->list, &iface->errors);
116 dest = (char *) &error->data[n_data + 1];
117 for (i = 0; i < n_data; i++) {
118 error->data[i] = dest;
119 memcpy(dest, data[i], datalen[i]);
122 error->data[n_data++] = NULL;
125 error->subsystem = strcpy(d_subsys, subsystem);
128 error->code = strcpy(d_code, code);
132 interface_data_del(struct interface *iface, struct interface_data *data)
134 avl_delete(&iface->data, &data->node);
139 interface_data_flush(struct interface *iface)
141 struct interface_data *d, *tmp;
143 avl_for_each_element_safe(&iface->data, d, node, tmp)
144 interface_data_del(iface, d);
148 interface_add_data(struct interface *iface, const struct blob_attr *data)
150 struct interface_data *n, *o;
152 if (!blobmsg_check_attr(data, true))
153 return UBUS_STATUS_INVALID_ARGUMENT;
155 const char *name = blobmsg_name(data);
156 unsigned len = blob_pad_len(data);
158 o = avl_find_element(&iface->data, name, o, node);
160 if (blob_pad_len(o->data) == len && !memcmp(o->data, data, len))
163 interface_data_del(iface, o);
166 n = calloc(1, sizeof(*n) + len);
167 memcpy(n->data, data, len);
168 n->node.key = blobmsg_name(n->data);
169 avl_insert(&iface->data, &n->node);
171 iface->updated |= IUF_DATA;
176 interface_event(struct interface *iface, enum interface_event ev)
178 struct interface_user *dep, *tmp;
179 struct device *adev = NULL;
181 list_for_each_entry_safe(dep, tmp, &iface->users, list)
182 dep->cb(dep, iface, ev);
184 list_for_each_entry_safe(dep, tmp, &iface_all_users, list)
185 dep->cb(dep, iface, ev);
189 adev = iface->l3_dev.dev;
192 alias_notify_device(iface->name, adev);
200 interface_flush_state(struct interface *iface)
202 if (iface->l3_dev.dev)
203 device_release(&iface->l3_dev);
204 interface_data_flush(iface);
208 mark_interface_down(struct interface *iface)
210 enum interface_state state = iface->state;
212 if (state == IFS_DOWN)
215 iface->state = IFS_DOWN;
217 interface_event(iface, IFEV_DOWN);
218 interface_ip_set_enabled(&iface->config_ip, false);
219 interface_ip_flush(&iface->proto_ip);
220 interface_flush_state(iface);
221 system_flush_routes();
225 __interface_set_down(struct interface *iface, bool force)
227 enum interface_state state = iface->state;
231 iface->state = IFS_TEARDOWN;
233 interface_event(iface, IFEV_DOWN);
235 interface_proto_event(iface->proto, PROTO_CMD_TEARDOWN, force);
237 interface_flush_state(iface);
240 vlist_delete(&interfaces, &iface->node);
244 if (iface->main_dev.dev)
245 device_release(&iface->main_dev);
253 __interface_set_up(struct interface *iface)
257 netifd_log_message(L_NOTICE, "Interface '%s' is setting up now\n", iface->name);
259 iface->state = IFS_SETUP;
260 ret = interface_proto_event(iface->proto, PROTO_CMD_SETUP, false);
262 mark_interface_down(iface);
268 interface_check_state(struct interface *iface)
270 bool link_state = iface->link_state || iface->force_link;
272 switch (iface->state) {
274 if (!iface->enabled || !link_state) {
275 mark_interface_down(iface);
276 interface_proto_event(iface->proto, PROTO_CMD_TEARDOWN, false);
280 if (iface->autostart && iface->enabled && link_state && !config_init)
281 __interface_set_up(iface);
289 interface_set_enabled(struct interface *iface, bool new_state)
291 if (iface->enabled == new_state)
294 netifd_log_message(L_NOTICE, "Interface '%s' is %s\n", iface->name, new_state ? "enabled" : "disabled");
295 iface->enabled = new_state;
296 interface_check_state(iface);
300 interface_set_link_state(struct interface *iface, bool new_state)
302 if (iface->link_state == new_state)
305 netifd_log_message(L_NOTICE, "Interface '%s' has link connectivity %s\n", iface->name, new_state ? "" : "loss");
306 iface->link_state = new_state;
307 interface_check_state(iface);
311 interface_cb(struct device_user *dep, enum device_event ev)
313 struct interface *iface;
314 bool new_state = false;
316 iface = container_of(dep, struct interface, main_dev);
320 case DEV_EVENT_REMOVE:
321 interface_set_available(iface, new_state);
322 if (!new_state && dep->dev && dep->dev->external)
323 interface_set_main_dev(iface, NULL);
328 interface_set_enabled(iface, new_state);
330 case DEV_EVENT_LINK_UP:
332 case DEV_EVENT_LINK_DOWN:
333 interface_set_link_state(iface, new_state);
335 case DEV_EVENT_TOPO_CHANGE:
336 interface_proto_event(iface->proto, PROTO_CMD_RENEW, false);
344 interface_set_available(struct interface *iface, bool new_state)
346 if (iface->available == new_state)
349 D(INTERFACE, "Interface '%s', available=%d\n", iface->name, new_state);
350 iface->available = new_state;
353 if (iface->autostart && !config_init)
354 interface_set_up(iface);
356 __interface_set_down(iface, true);
360 interface_add_user(struct interface_user *dep, struct interface *iface)
363 list_add(&dep->list, &iface_all_users);
368 list_add(&dep->list, &iface->users);
369 if (iface->state == IFS_UP)
370 dep->cb(dep, iface, IFEV_UP);
374 interface_remove_user(struct interface_user *dep)
376 list_del_init(&dep->list);
381 interface_add_assignment_classes(struct interface *iface, struct blob_attr *list)
383 struct blob_attr *cur;
386 blobmsg_for_each_attr(cur, list, rem) {
387 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
390 if (!blobmsg_check_attr(cur, NULL))
393 struct interface_assignment_class *c = malloc(sizeof(*c) + blobmsg_data_len(cur));
394 memcpy(c->name, blobmsg_data(cur), blobmsg_data_len(cur));
395 list_add(&c->head, &iface->assignment_classes);
400 interface_clear_assignment_classes(struct interface *iface)
402 while (!list_empty(&iface->assignment_classes)) {
403 struct interface_assignment_class *c = list_first_entry(&iface->assignment_classes,
404 struct interface_assignment_class, head);
411 interface_merge_assignment_data(struct interface *old, struct interface *new)
413 bool changed = (old->assignment_hint != new->assignment_hint ||
414 old->assignment_length != new->assignment_length ||
415 list_empty(&old->assignment_classes) != list_empty(&new->assignment_classes));
417 struct interface_assignment_class *c;
418 list_for_each_entry(c, &new->assignment_classes, head) {
419 // Compare list entries one-by-one to see if there was a change
420 if (list_empty(&old->assignment_classes)) // The new list is longer
426 struct interface_assignment_class *c_old = list_first_entry(&old->assignment_classes,
427 struct interface_assignment_class, head);
429 if (strcmp(c_old->name, c->name)) // An entry didn't match
432 list_del(&c_old->head);
436 // The old list was longer than the new one or the last entry didn't match
437 if (!list_empty(&old->assignment_classes)) {
438 interface_clear_assignment_classes(old);
442 list_splice_init(&new->assignment_classes, &old->assignment_classes);
445 old->assignment_hint = new->assignment_hint;
446 old->assignment_length = new->assignment_length;
447 interface_refresh_assignments(true);
452 interface_alias_cb(struct interface_user *dep, struct interface *iface, enum interface_event ev)
454 struct interface *alias = container_of(dep, struct interface, parent_iface);
455 struct device *dev = iface->l3_dev.dev;
462 interface_set_main_dev(alias, dev);
463 interface_set_available(alias, true);
466 interface_set_available(alias, false);
467 interface_set_main_dev(alias, NULL);
470 interface_remove_user(dep);
479 interface_claim_device(struct interface *iface)
481 struct interface *parent;
482 struct device *dev = NULL;
484 if (iface->parent_iface.iface)
485 interface_remove_user(&iface->parent_iface);
487 if (iface->parent_ifname) {
488 parent = vlist_find(&interfaces, iface->parent_ifname, parent, node);
489 iface->parent_iface.cb = interface_alias_cb;
490 interface_add_user(&iface->parent_iface, parent);
491 } else if (iface->ifname &&
492 !(iface->proto_handler->flags & PROTO_FLAG_NODEV)) {
493 dev = device_get(iface->ifname, true);
497 interface_set_main_dev(iface, dev);
499 if (iface->proto_handler->flags & PROTO_FLAG_INIT_AVAILABLE)
500 interface_set_available(iface, true);
504 interface_cleanup_state(struct interface *iface)
506 interface_set_available(iface, false);
508 interface_flush_state(iface);
509 interface_clear_errors(iface);
510 interface_set_proto_state(iface, NULL);
512 if (iface->main_dev.dev)
513 interface_set_main_dev(iface, NULL);
517 interface_cleanup(struct interface *iface)
519 struct interface_user *dep, *tmp;
521 if (iface->parent_iface.iface)
522 interface_remove_user(&iface->parent_iface);
524 list_for_each_entry_safe(dep, tmp, &iface->users, list)
525 interface_remove_user(dep);
527 interface_clear_assignment_classes(iface);
528 interface_ip_flush(&iface->config_ip);
529 interface_cleanup_state(iface);
533 interface_do_free(struct interface *iface)
535 interface_event(iface, IFEV_FREE);
536 interface_cleanup(iface);
538 netifd_ubus_remove_interface(iface);
539 avl_delete(&interfaces.avl, &iface->node.avl);
544 interface_do_reload(struct interface *iface)
546 interface_event(iface, IFEV_RELOAD);
547 interface_cleanup_state(iface);
548 proto_init_interface(iface, iface->config);
549 interface_claim_device(iface);
553 interface_handle_config_change(struct interface *iface)
555 enum interface_config_state state = iface->config_state;
557 iface->config_state = IFC_NORMAL;
562 interface_do_reload(iface);
565 interface_do_free(iface);
568 if (iface->autostart && iface->available)
569 interface_set_up(iface);
573 interface_proto_cb(struct interface_proto_state *state, enum interface_proto_event ev)
575 struct interface *iface = state->iface;
579 if (iface->state != IFS_SETUP) {
580 interface_event(iface, IFEV_UPDATE);
584 if (!iface->l3_dev.dev)
585 interface_set_l3_dev(iface, iface->main_dev.dev);
587 interface_ip_set_enabled(&iface->config_ip, true);
588 system_flush_routes();
589 iface->state = IFS_UP;
590 iface->start_time = system_get_rtime();
591 interface_event(iface, IFEV_UP);
592 netifd_log_message(L_NOTICE, "Interface '%s' is now up\n", iface->name);
595 if (iface->state == IFS_DOWN)
598 netifd_log_message(L_NOTICE, "Interface '%s' is now down\n", iface->name);
599 mark_interface_down(iface);
600 if (iface->main_dev.dev)
601 device_release(&iface->main_dev);
602 if (iface->l3_dev.dev)
603 device_remove_user(&iface->l3_dev);
604 interface_handle_config_change(iface);
606 case IFPEV_LINK_LOST:
607 if (iface->state != IFS_UP)
610 netifd_log_message(L_NOTICE, "Interface '%s' has lost the connection\n", iface->name);
611 mark_interface_down(iface);
612 iface->state = IFS_SETUP;
618 interface_write_resolv_conf();
621 void interface_set_proto_state(struct interface *iface, struct interface_proto_state *state)
624 iface->proto->free(iface->proto);
627 iface->state = IFS_DOWN;
628 iface->proto = state;
632 state->proto_event = interface_proto_cb;
633 state->iface = iface;
637 interface_alloc(const char *name, struct blob_attr *config)
639 struct interface *iface;
640 struct blob_attr *tb[IFACE_ATTR_MAX];
641 struct blob_attr *cur;
642 const char *proto_name = NULL;
645 iface = calloc_a(sizeof(*iface), &iface_name, strlen(name) + 1);
646 iface->name = strcpy(iface_name, name);
647 INIT_LIST_HEAD(&iface->errors);
648 INIT_LIST_HEAD(&iface->users);
649 INIT_LIST_HEAD(&iface->hotplug_list);
650 INIT_LIST_HEAD(&iface->assignment_classes);
651 interface_ip_init(iface);
652 avl_init(&iface->data, avl_strcmp, false, NULL);
653 iface->config_ip.enabled = false;
655 iface->main_dev.cb = interface_cb;
657 blobmsg_parse(iface_attrs, IFACE_ATTR_MAX, tb,
658 blob_data(config), blob_len(config));
660 if ((cur = tb[IFACE_ATTR_PROTO]))
661 proto_name = blobmsg_data(cur);
663 proto_attach_interface(iface, proto_name);
665 iface->autostart = blobmsg_get_bool_default(tb[IFACE_ATTR_AUTO], true);
666 iface->force_link = blobmsg_get_bool_default(tb[IFACE_ATTR_FORCE_LINK], false);
667 iface->proto_ip.no_defaultroute =
668 !blobmsg_get_bool_default(tb[IFACE_ATTR_DEFAULTROUTE], true);
669 iface->proto_ip.no_dns =
670 !blobmsg_get_bool_default(tb[IFACE_ATTR_PEERDNS], true);
672 if ((cur = tb[IFACE_ATTR_DNS]))
673 interface_add_dns_server_list(&iface->config_ip, cur);
675 if ((cur = tb[IFACE_ATTR_DNS_SEARCH]))
676 interface_add_dns_search_list(&iface->config_ip, cur);
678 if ((cur = tb[IFACE_ATTR_METRIC]))
679 iface->metric = blobmsg_get_u32(cur);
681 if ((cur = tb[IFACE_ATTR_IP6ASSIGN]))
682 iface->assignment_length = blobmsg_get_u32(cur);
684 iface->assignment_hint = -1;
685 if ((cur = tb[IFACE_ATTR_IP6HINT]))
686 iface->assignment_hint = strtol(blobmsg_get_string(cur), NULL, 16) &
687 ~((1 << (64 - iface->assignment_length)) - 1);
689 if ((cur = tb[IFACE_ATTR_IP6CLASS]))
690 interface_add_assignment_classes(iface, cur);
693 if ((cur = tb[IFACE_ATTR_IP4TABLE])) {
694 if (!system_resolve_rt_table(blobmsg_data(cur), &iface->ip4table))
695 DPRINTF("Failed to resolve routing table: %s\n", (char *) blobmsg_data(cur));
698 if ((cur = tb[IFACE_ATTR_IP6TABLE])) {
699 if (!system_resolve_rt_table(blobmsg_data(cur), &iface->ip6table))
700 DPRINTF("Failed to resolve routing table: %s\n", (char *) blobmsg_data(cur));
703 iface->proto_ip.no_delegation = !blobmsg_get_bool_default(tb[IFACE_ATTR_DELEGATE], true);
705 iface->config_autostart = iface->autostart;
709 void interface_set_dynamic(struct interface *iface)
711 iface->dynamic = true;
712 iface->node.version = -1; // Don't delete on reload
715 static bool __interface_add(struct interface *iface, struct blob_attr *config, bool alias)
717 struct blob_attr *tb[IFACE_ATTR_MAX];
718 struct blob_attr *cur;
720 blobmsg_parse(iface_attrs, IFACE_ATTR_MAX, tb,
721 blob_data(config), blob_len(config));
724 if ((cur = tb[IFACE_ATTR_INTERFACE]))
725 iface->parent_ifname = blobmsg_data(cur);
727 if (!iface->parent_ifname)
730 if ((cur = tb[IFACE_ATTR_IFNAME]))
731 iface->ifname = blobmsg_data(cur);
735 iface->config = config;
736 vlist_add(&interfaces, &iface->node, iface->name);
741 interface_add(struct interface *iface, struct blob_attr *config)
743 __interface_add(iface, config, false);
747 interface_add_alias(struct interface *iface, struct blob_attr *config)
749 if (iface->proto_handler->flags & PROTO_FLAG_NODEV)
752 return __interface_add(iface, config, true);
756 interface_set_l3_dev(struct interface *iface, struct device *dev)
758 bool enabled = iface->config_ip.enabled;
759 bool claimed = iface->l3_dev.claimed;
761 if (iface->l3_dev.dev == dev)
764 interface_ip_set_enabled(&iface->config_ip, false);
765 interface_ip_flush(&iface->proto_ip);
766 device_add_user(&iface->l3_dev, dev);
770 device_claim(&iface->l3_dev);
771 interface_ip_set_enabled(&iface->config_ip, enabled);
776 interface_set_main_dev(struct interface *iface, struct device *dev)
778 bool claimed = iface->l3_dev.claimed;
780 if (iface->main_dev.dev == dev)
783 interface_set_available(iface, false);
784 device_add_user(&iface->main_dev, dev);
786 interface_set_link_state(iface, false);
791 device_claim(&iface->l3_dev);
793 if (!iface->l3_dev.dev)
794 interface_set_l3_dev(iface, dev);
798 interface_remove_link(struct interface *iface, struct device *dev)
800 struct device *mdev = iface->main_dev.dev;
802 if (mdev && mdev->hotplug_ops)
803 return mdev->hotplug_ops->del(mdev, dev);
805 if (!iface->main_dev.hotplug)
806 return UBUS_STATUS_INVALID_ARGUMENT;
808 if (dev != iface->main_dev.dev)
809 return UBUS_STATUS_INVALID_ARGUMENT;
811 interface_set_main_dev(iface, NULL);
816 interface_add_link(struct interface *iface, struct device *dev)
818 struct device *mdev = iface->main_dev.dev;
823 if (iface->main_dev.hotplug)
824 device_remove_user(&iface->main_dev);
827 if (mdev->hotplug_ops)
828 return mdev->hotplug_ops->add(mdev, dev);
830 return UBUS_STATUS_NOT_SUPPORTED;
833 interface_set_main_dev(iface, dev);
834 iface->main_dev.hotplug = true;
839 interface_handle_link(struct interface *iface, const char *name, bool add)
846 dev = device_get(name, add ? 2 : 0);
848 ret = UBUS_STATUS_NOT_FOUND;
853 device_set_present(dev, true);
854 if (iface->device_config)
855 device_set_config(dev, &simple_device_type, iface->config);
857 system_if_apply_settings(dev, &dev->settings, dev->settings.flags);
858 ret = interface_add_link(iface, dev);
860 ret = interface_remove_link(iface, dev);
870 interface_set_up(struct interface *iface)
874 iface->autostart = true;
876 if (iface->state != IFS_DOWN)
879 interface_clear_errors(iface);
880 if (!iface->available) {
881 interface_add_error(iface, "interface", "NO_DEVICE", NULL, 0);
885 if (iface->main_dev.dev) {
886 ret = device_claim(&iface->main_dev);
888 interface_check_state(iface);
891 ret = __interface_set_up(iface);
897 interface_set_down(struct interface *iface)
900 vlist_for_each_element(&interfaces, iface, node)
901 __interface_set_down(iface, false);
903 iface->autostart = false;
904 __interface_set_down(iface, false);
911 interface_start_pending(void)
913 struct interface *iface;
915 vlist_for_each_element(&interfaces, iface, node) {
916 if (iface->available && iface->autostart)
917 interface_set_up(iface);
922 set_config_state(struct interface *iface, enum interface_config_state s)
924 iface->config_state = s;
925 if (iface->state == IFS_DOWN)
926 interface_handle_config_change(iface);
928 __interface_set_down(iface, false);
932 interface_update_start(struct interface *iface)
935 interface_ip_update_start(&iface->proto_ip);
939 interface_update_complete(struct interface *iface)
941 interface_ip_update_complete(&iface->proto_ip);
945 interface_replace_dns(struct interface_ip_settings *new, struct interface_ip_settings *old)
947 vlist_simple_replace(&new->dns_servers, &old->dns_servers);
948 vlist_simple_replace(&new->dns_search, &old->dns_search);
952 interface_change_config(struct interface *if_old, struct interface *if_new)
954 struct blob_attr *old_config = if_old->config;
955 bool reload = false, reload_ip = false;
957 #define FIELD_CHANGED_STR(field) \
958 ((!!if_old->field != !!if_new->field) || \
960 strcmp(if_old->field, if_new->field) != 0))
962 if (FIELD_CHANGED_STR(parent_ifname)) {
963 if (if_old->parent_iface.iface)
964 interface_remove_user(&if_old->parent_iface);
968 if (FIELD_CHANGED_STR(ifname) ||
969 if_old->proto_handler != if_new->proto_handler)
972 if (!if_old->proto_handler->config_params)
973 D(INTERFACE, "No config parameters for interface '%s'\n",
975 else if (!uci_blob_check_equal(if_old->config, if_new->config,
976 if_old->proto_handler->config_params))
979 #define UPDATE(field, __var) ({ \
980 bool __changed = (if_old->field != if_new->field); \
981 if_old->field = if_new->field; \
982 __var |= __changed; \
985 if_old->config = if_new->config;
986 if (!if_old->config_autostart && if_new->config_autostart)
987 if_old->autostart = true;
989 if_old->device_config = if_new->device_config;
990 if_old->config_autostart = if_new->config_autostart;
991 if_old->ifname = if_new->ifname;
992 if_old->parent_ifname = if_new->parent_ifname;
993 if_old->proto_handler = if_new->proto_handler;
994 if_old->force_link = if_new->force_link;
996 if_old->proto_ip.no_dns = if_new->proto_ip.no_dns;
997 interface_replace_dns(&if_old->config_ip, &if_new->config_ip);
999 UPDATE(metric, reload_ip);
1000 UPDATE(proto_ip.no_defaultroute, reload_ip);
1001 UPDATE(ip4table, reload_ip);
1002 UPDATE(ip6table, reload_ip);
1003 interface_merge_assignment_data(if_old, if_new);
1008 D(INTERFACE, "Reload interface '%s' because of config changes\n",
1010 interface_clear_errors(if_old);
1011 set_config_state(if_old, IFC_RELOAD);
1016 interface_ip_set_enabled(&if_old->config_ip, false);
1017 interface_ip_set_enabled(&if_old->proto_ip, false);
1018 interface_ip_set_enabled(&if_old->proto_ip, if_new->proto_ip.enabled);
1019 interface_ip_set_enabled(&if_old->config_ip, if_new->config_ip.enabled);
1022 interface_write_resolv_conf();
1023 if (if_old->main_dev.dev)
1024 interface_check_state(if_old);
1027 if_new->config = NULL;
1028 interface_cleanup(if_new);
1034 interface_update(struct vlist_tree *tree, struct vlist_node *node_new,
1035 struct vlist_node *node_old)
1037 struct interface *if_old = container_of(node_old, struct interface, node);
1038 struct interface *if_new = container_of(node_new, struct interface, node);
1040 if (node_old && node_new) {
1041 D(INTERFACE, "Update interface '%s'\n", if_new->name);
1042 interface_change_config(if_old, if_new);
1043 } else if (node_old) {
1044 D(INTERFACE, "Remove interface '%s'\n", if_old->name);
1045 set_config_state(if_old, IFC_REMOVE);
1046 } else if (node_new) {
1047 D(INTERFACE, "Create interface '%s'\n", if_new->name);
1048 proto_init_interface(if_new, if_new->config);
1049 interface_claim_device(if_new);
1050 netifd_ubus_add_interface(if_new);
1056 interface_init_list(void)
1058 vlist_init(&interfaces, avl_strcmp, interface_update);
1059 interfaces.keep_old = true;
1060 interfaces.no_delete = true;