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
,
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
},
66 static const struct uci_blob_param_info iface_attr_info
[IFACE_ATTR_MAX
] = {
67 [IFACE_ATTR_DNS
] = { .type
= BLOBMSG_TYPE_STRING
},
68 [IFACE_ATTR_IP6CLASS
] = { .type
= BLOBMSG_TYPE_STRING
},
71 const struct uci_blob_param_list interface_attr_list
= {
72 .n_params
= IFACE_ATTR_MAX
,
73 .params
= iface_attrs
,
74 .info
= iface_attr_info
,
78 interface_clear_errors(struct interface
*iface
)
80 struct interface_error
*error
, *tmp
;
82 list_for_each_entry_safe(error
, tmp
, &iface
->errors
, list
) {
83 list_del(&error
->list
);
88 void interface_add_error(struct interface
*iface
, const char *subsystem
,
89 const char *code
, const char **data
, int n_data
)
91 struct interface_error
*error
;
94 char *dest
, *d_subsys
, *d_code
;
97 len
= n_data
* sizeof(char *);
98 datalen
= alloca(len
);
99 for (i
= 0; i
< n_data
; i
++) {
100 datalen
[i
] = strlen(data
[i
]) + 1;
105 error
= calloc_a(sizeof(*error
) + sizeof(char *) + len
,
106 &d_subsys
, subsystem
? strlen(subsystem
) + 1 : 0,
107 &d_code
, code
? strlen(code
) + 1 : 0);
111 list_add_tail(&error
->list
, &iface
->errors
);
113 dest
= (char *) &error
->data
[n_data
+ 1];
114 for (i
= 0; i
< n_data
; i
++) {
115 error
->data
[i
] = dest
;
116 memcpy(dest
, data
[i
], datalen
[i
]);
119 error
->data
[n_data
++] = NULL
;
122 error
->subsystem
= strcpy(d_subsys
, subsystem
);
125 error
->code
= strcpy(d_code
, code
);
129 interface_data_del(struct interface
*iface
, struct interface_data
*data
)
131 avl_delete(&iface
->data
, &data
->node
);
136 interface_data_flush(struct interface
*iface
)
138 struct interface_data
*d
, *tmp
;
140 avl_for_each_element_safe(&iface
->data
, d
, node
, tmp
)
141 interface_data_del(iface
, d
);
145 interface_add_data(struct interface
*iface
, const struct blob_attr
*data
)
147 struct interface_data
*n
, *o
;
149 if (!blobmsg_check_attr(data
, true))
150 return UBUS_STATUS_INVALID_ARGUMENT
;
152 n
= calloc(1, sizeof(*n
) + blob_pad_len(data
));
153 memcpy(n
->data
, data
, blob_pad_len(data
));
154 n
->node
.key
= blobmsg_name(data
);
156 o
= avl_find_element(&iface
->data
, n
->node
.key
, o
, node
);
158 interface_data_del(iface
, o
);
160 avl_insert(&iface
->data
, &n
->node
);
165 interface_event(struct interface
*iface
, enum interface_event ev
)
167 struct interface_user
*dep
, *tmp
;
168 struct device
*adev
= NULL
;
170 list_for_each_entry_safe(dep
, tmp
, &iface
->users
, list
)
171 dep
->cb(dep
, iface
, ev
);
173 list_for_each_entry_safe(dep
, tmp
, &iface_all_users
, list
)
174 dep
->cb(dep
, iface
, ev
);
178 adev
= iface
->l3_dev
.dev
;
181 alias_notify_device(iface
->name
, adev
);
189 interface_flush_state(struct interface
*iface
)
191 if (iface
->l3_dev
.dev
)
192 device_release(&iface
->l3_dev
);
193 interface_data_flush(iface
);
197 mark_interface_down(struct interface
*iface
)
199 enum interface_state state
= iface
->state
;
201 iface
->state
= IFS_DOWN
;
203 interface_event(iface
, IFEV_DOWN
);
204 interface_ip_set_enabled(&iface
->config_ip
, false);
205 interface_ip_flush(&iface
->proto_ip
);
206 interface_flush_state(iface
);
207 system_flush_routes();
211 __interface_set_down(struct interface
*iface
, bool force
)
213 if (iface
->state
== IFS_DOWN
||
214 iface
->state
== IFS_TEARDOWN
)
217 if (iface
->state
== IFS_UP
)
218 interface_event(iface
, IFEV_DOWN
);
219 iface
->state
= IFS_TEARDOWN
;
220 interface_proto_event(iface
->proto
, PROTO_CMD_TEARDOWN
, force
);
222 interface_flush_state(iface
);
225 vlist_delete(&interfaces
, &iface
->node
);
229 interface_cb(struct device_user
*dep
, enum device_event ev
)
231 struct interface
*iface
;
234 iface
= container_of(dep
, struct interface
, main_dev
);
239 case DEV_EVENT_REMOVE
:
246 interface_set_available(iface
, new_state
);
247 if (!new_state
&& dep
->dev
->external
)
248 interface_set_main_dev(iface
, NULL
);
252 interface_set_available(struct interface
*iface
, bool new_state
)
254 if (iface
->available
== new_state
)
257 D(INTERFACE
, "Interface '%s', available=%d\n", iface
->name
, new_state
);
258 iface
->available
= new_state
;
261 if (iface
->autostart
&& !config_init
)
262 interface_set_up(iface
);
264 __interface_set_down(iface
, true);
268 interface_add_user(struct interface_user
*dep
, struct interface
*iface
)
271 list_add(&dep
->list
, &iface_all_users
);
276 list_add(&dep
->list
, &iface
->users
);
277 if (iface
->state
== IFS_UP
)
278 dep
->cb(dep
, iface
, IFEV_UP
);
282 interface_remove_user(struct interface_user
*dep
)
284 list_del_init(&dep
->list
);
289 interface_add_assignment_classes(struct interface
*iface
, struct blob_attr
*list
)
291 struct blob_attr
*cur
;
294 blobmsg_for_each_attr(cur
, list
, rem
) {
295 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
)
298 if (!blobmsg_check_attr(cur
, NULL
))
301 struct interface_assignment_class
*c
= malloc(sizeof(*c
) + blobmsg_data_len(cur
));
302 memcpy(c
->name
, blobmsg_data(cur
), blobmsg_data_len(cur
));
303 list_add(&c
->head
, &iface
->assignment_classes
);
308 interface_clear_assignment_classes(struct interface
*iface
)
310 while (!list_empty(&iface
->assignment_classes
)) {
311 struct interface_assignment_class
*c
= list_first_entry(&iface
->assignment_classes
,
312 struct interface_assignment_class
, head
);
319 interface_merge_assignment_data(struct interface
*old
, struct interface
*new)
321 bool changed
= (old
->assignment_hint
!= new->assignment_hint
||
322 old
->assignment_length
!= new->assignment_length
||
323 list_empty(&old
->assignment_classes
) != list_empty(&new->assignment_classes
));
325 struct interface_assignment_class
*c
;
326 list_for_each_entry(c
, &new->assignment_classes
, head
) {
327 // Compare list entries one-by-one to see if there was a change
328 if (list_empty(&old
->assignment_classes
)) // The new list is longer
334 struct interface_assignment_class
*c_old
= list_first_entry(&old
->assignment_classes
,
335 struct interface_assignment_class
, head
);
337 if (strcmp(c_old
->name
, c
->name
)) // An entry didn't match
340 list_del(&c_old
->head
);
344 // The old list was longer than the new one or the last entry didn't match
345 if (!list_empty(&old
->assignment_classes
)) {
346 interface_clear_assignment_classes(old
);
350 list_splice_init(&new->assignment_classes
, &old
->assignment_classes
);
353 old
->assignment_hint
= new->assignment_hint
;
354 old
->assignment_length
= new->assignment_length
;
355 interface_refresh_assignments(true);
360 interface_alias_cb(struct interface_user
*dep
, struct interface
*iface
, enum interface_event ev
)
362 struct interface
*alias
= container_of(dep
, struct interface
, parent_iface
);
363 struct device
*dev
= iface
->l3_dev
.dev
;
370 interface_set_main_dev(alias
, dev
);
371 interface_set_available(alias
, true);
374 interface_set_available(alias
, false);
375 interface_set_main_dev(alias
, NULL
);
378 interface_remove_user(dep
);
386 interface_claim_device(struct interface
*iface
)
388 struct interface
*parent
;
389 struct device
*dev
= NULL
;
391 if (iface
->parent_iface
.iface
)
392 interface_remove_user(&iface
->parent_iface
);
394 if (iface
->parent_ifname
) {
395 parent
= vlist_find(&interfaces
, iface
->parent_ifname
, parent
, node
);
396 iface
->parent_iface
.cb
= interface_alias_cb
;
397 interface_add_user(&iface
->parent_iface
, parent
);
398 } else if (iface
->ifname
&&
399 !(iface
->proto_handler
->flags
& PROTO_FLAG_NODEV
)) {
400 dev
= device_get(iface
->ifname
, true);
404 interface_set_main_dev(iface
, dev
);
406 if (iface
->proto_handler
->flags
& PROTO_FLAG_INIT_AVAILABLE
)
407 interface_set_available(iface
, true);
411 interface_cleanup_state(struct interface
*iface
)
413 interface_set_available(iface
, false);
415 interface_flush_state(iface
);
416 interface_clear_errors(iface
);
417 interface_set_proto_state(iface
, NULL
);
419 if (iface
->main_dev
.dev
)
420 interface_set_main_dev(iface
, NULL
);
424 interface_cleanup(struct interface
*iface
)
426 struct interface_user
*dep
, *tmp
;
428 if (iface
->parent_iface
.iface
)
429 interface_remove_user(&iface
->parent_iface
);
431 list_for_each_entry_safe(dep
, tmp
, &iface
->users
, list
)
432 interface_remove_user(dep
);
434 interface_clear_assignment_classes(iface
);
435 interface_ip_flush(&iface
->config_ip
);
436 interface_cleanup_state(iface
);
440 interface_do_free(struct interface
*iface
)
442 interface_event(iface
, IFEV_FREE
);
443 interface_cleanup(iface
);
445 netifd_ubus_remove_interface(iface
);
446 avl_delete(&interfaces
.avl
, &iface
->node
.avl
);
451 interface_do_reload(struct interface
*iface
)
453 interface_event(iface
, IFEV_RELOAD
);
454 interface_cleanup_state(iface
);
455 proto_init_interface(iface
, iface
->config
);
456 interface_claim_device(iface
);
460 interface_handle_config_change(struct interface
*iface
)
462 enum interface_config_state state
= iface
->config_state
;
464 iface
->config_state
= IFC_NORMAL
;
469 interface_do_reload(iface
);
472 interface_do_free(iface
);
475 if (iface
->autostart
&& iface
->available
)
476 interface_set_up(iface
);
480 interface_proto_cb(struct interface_proto_state
*state
, enum interface_proto_event ev
)
482 struct interface
*iface
= state
->iface
;
486 if (iface
->state
!= IFS_SETUP
)
489 interface_ip_set_enabled(&iface
->config_ip
, true);
490 system_flush_routes();
491 iface
->state
= IFS_UP
;
492 iface
->start_time
= system_get_rtime();
493 interface_event(iface
, IFEV_UP
);
494 netifd_log_message(L_NOTICE
, "Interface '%s' is now up\n", iface
->name
);
497 if (iface
->state
== IFS_DOWN
)
500 netifd_log_message(L_NOTICE
, "Interface '%s' is now down\n", iface
->name
);
501 mark_interface_down(iface
);
502 if (iface
->main_dev
.dev
)
503 device_release(&iface
->main_dev
);
504 interface_handle_config_change(iface
);
506 case IFPEV_LINK_LOST
:
507 if (iface
->state
!= IFS_UP
)
510 netifd_log_message(L_NOTICE
, "Interface '%s' has lost the connection\n", iface
->name
);
511 mark_interface_down(iface
);
512 iface
->state
= IFS_SETUP
;
516 interface_write_resolv_conf();
519 void interface_set_proto_state(struct interface
*iface
, struct interface_proto_state
*state
)
522 iface
->proto
->free(iface
->proto
);
525 iface
->state
= IFS_DOWN
;
526 iface
->proto
= state
;
530 state
->proto_event
= interface_proto_cb
;
531 state
->iface
= iface
;
535 interface_init(struct interface
*iface
, const char *name
,
536 struct blob_attr
*config
, bool dynamic
)
538 struct blob_attr
*tb
[IFACE_ATTR_MAX
];
539 struct blob_attr
*cur
;
540 const char *proto_name
= NULL
;
542 strncpy(iface
->name
, name
, sizeof(iface
->name
) - 1);
543 INIT_LIST_HEAD(&iface
->errors
);
544 INIT_LIST_HEAD(&iface
->users
);
545 INIT_LIST_HEAD(&iface
->hotplug_list
);
546 INIT_LIST_HEAD(&iface
->assignment_classes
);
547 interface_ip_init(iface
);
548 avl_init(&iface
->data
, avl_strcmp
, false, NULL
);
549 iface
->config_ip
.enabled
= false;
551 iface
->main_dev
.cb
= interface_cb
;
553 blobmsg_parse(iface_attrs
, IFACE_ATTR_MAX
, tb
,
554 blob_data(config
), blob_len(config
));
556 if ((cur
= tb
[IFACE_ATTR_PROTO
]))
557 proto_name
= blobmsg_data(cur
);
559 proto_attach_interface(iface
, proto_name
);
561 iface
->autostart
= blobmsg_get_bool_default(tb
[IFACE_ATTR_AUTO
], true);
562 iface
->proto_ip
.no_defaultroute
=
563 !blobmsg_get_bool_default(tb
[IFACE_ATTR_DEFAULTROUTE
], true);
564 iface
->proto_ip
.no_dns
=
565 !blobmsg_get_bool_default(tb
[IFACE_ATTR_PEERDNS
], true);
567 if ((cur
= tb
[IFACE_ATTR_DNS
]))
568 interface_add_dns_server_list(&iface
->config_ip
, cur
);
570 if ((cur
= tb
[IFACE_ATTR_DNS_SEARCH
]))
571 interface_add_dns_search_list(&iface
->config_ip
, cur
);
573 if ((cur
= tb
[IFACE_ATTR_METRIC
]))
574 iface
->metric
= blobmsg_get_u32(cur
);
576 if ((cur
= tb
[IFACE_ATTR_IP6ASSIGN
]))
577 iface
->assignment_length
= blobmsg_get_u32(cur
);
579 iface
->assignment_hint
= -1;
580 if ((cur
= tb
[IFACE_ATTR_IP6HINT
]))
581 iface
->assignment_hint
= strtol(blobmsg_get_string(cur
), NULL
, 16) &
582 ~((1 << (64 - iface
->assignment_length
)) - 1);
584 if ((cur
= tb
[IFACE_ATTR_IP6CLASS
]))
585 interface_add_assignment_classes(iface
, cur
);
588 if ((cur
= tb
[IFACE_ATTR_IP4TABLE
])) {
589 if (!system_resolve_rt_table(blobmsg_data(cur
), &iface
->ip4table
))
590 DPRINTF("Failed to resolve routing table: %s\n", (char *) blobmsg_data(cur
));
593 // Set a default exteranl routing table for IPv6 to do source-based-filtering
594 struct interface
*iface_old
= vlist_find(&interfaces
, name
, iface_old
, node
);
595 if (iface_old
&& iface_old
->ip6table
> 1000 && iface_old
->ip6table
< 2000)
596 iface
->ip6table
= iface_old
->ip6table
;
598 iface
->ip6table
= 1000 + ++interface_serial
;
600 if ((cur
= tb
[IFACE_ATTR_IP6TABLE
])) {
601 if (!system_resolve_rt_table(blobmsg_data(cur
), &iface
->ip6table
))
602 DPRINTF("Failed to resolve routing table: %s\n", (char *) blobmsg_data(cur
));
605 iface
->config_autostart
= iface
->autostart
;
606 iface
->dynamic
= dynamic
;
609 iface
->node
.version
= -1; // Don't delete on reload
612 static bool __interface_add(struct interface
*iface
, struct blob_attr
*config
, bool alias
)
614 struct blob_attr
*tb
[IFACE_ATTR_MAX
];
615 struct blob_attr
*cur
;
617 blobmsg_parse(iface_attrs
, IFACE_ATTR_MAX
, tb
,
618 blob_data(config
), blob_len(config
));
621 if ((cur
= tb
[IFACE_ATTR_INTERFACE
]))
622 iface
->parent_ifname
= blobmsg_data(cur
);
624 if (!iface
->parent_ifname
)
627 if ((cur
= tb
[IFACE_ATTR_IFNAME
]))
628 iface
->ifname
= blobmsg_data(cur
);
632 iface
->config
= config
;
633 vlist_add(&interfaces
, &iface
->node
, iface
->name
);
638 interface_add(struct interface
*iface
, struct blob_attr
*config
)
640 __interface_add(iface
, config
, false);
644 interface_add_alias(struct interface
*iface
, struct blob_attr
*config
)
646 if (iface
->proto_handler
->flags
& PROTO_FLAG_NODEV
)
649 return __interface_add(iface
, config
, true);
653 interface_set_l3_dev(struct interface
*iface
, struct device
*dev
)
655 bool enabled
= iface
->config_ip
.enabled
;
656 bool claimed
= iface
->l3_dev
.claimed
;
658 if (iface
->l3_dev
.dev
== dev
)
661 interface_ip_set_enabled(&iface
->config_ip
, false);
662 interface_ip_flush(&iface
->proto_ip
);
663 device_add_user(&iface
->l3_dev
, dev
);
667 device_claim(&iface
->l3_dev
);
668 interface_ip_set_enabled(&iface
->config_ip
, enabled
);
673 interface_set_main_dev(struct interface
*iface
, struct device
*dev
)
675 bool set_l3
= (iface
->main_dev
.dev
== iface
->l3_dev
.dev
);
676 bool claimed
= iface
->l3_dev
.claimed
;
678 if (iface
->main_dev
.dev
== dev
)
682 interface_set_l3_dev(iface
, dev
);
684 device_add_user(&iface
->main_dev
, dev
);
689 device_claim(&iface
->l3_dev
);
691 if (!iface
->l3_dev
.dev
)
692 interface_set_l3_dev(iface
, dev
);
696 interface_remove_link(struct interface
*iface
, struct device
*dev
)
698 struct device
*mdev
= iface
->main_dev
.dev
;
700 if (mdev
&& mdev
->hotplug_ops
)
701 return mdev
->hotplug_ops
->del(mdev
, dev
);
703 if (!iface
->main_dev
.hotplug
)
704 return UBUS_STATUS_INVALID_ARGUMENT
;
706 if (dev
!= iface
->main_dev
.dev
)
707 return UBUS_STATUS_INVALID_ARGUMENT
;
709 device_remove_user(&iface
->main_dev
);
714 interface_add_link(struct interface
*iface
, struct device
*dev
)
716 struct device
*mdev
= iface
->main_dev
.dev
;
721 if (iface
->main_dev
.hotplug
)
722 device_remove_user(&iface
->main_dev
);
725 if (mdev
->hotplug_ops
)
726 return mdev
->hotplug_ops
->add(mdev
, dev
);
728 return UBUS_STATUS_NOT_SUPPORTED
;
731 interface_set_main_dev(iface
, dev
);
732 iface
->main_dev
.hotplug
= true;
737 interface_set_up(struct interface
*iface
)
741 iface
->autostart
= true;
743 if (iface
->state
!= IFS_DOWN
)
746 interface_clear_errors(iface
);
747 if (!iface
->available
) {
748 interface_add_error(iface
, "interface", "NO_DEVICE", NULL
, 0);
752 if (iface
->main_dev
.dev
) {
753 ret
= device_claim(&iface
->main_dev
);
758 iface
->state
= IFS_SETUP
;
759 ret
= interface_proto_event(iface
->proto
, PROTO_CMD_SETUP
, false);
761 mark_interface_down(iface
);
769 interface_set_down(struct interface
*iface
)
772 vlist_for_each_element(&interfaces
, iface
, node
)
773 __interface_set_down(iface
, false);
775 iface
->autostart
= false;
776 __interface_set_down(iface
, false);
783 interface_start_pending(void)
785 struct interface
*iface
;
787 vlist_for_each_element(&interfaces
, iface
, node
) {
788 if (iface
->available
&& iface
->autostart
)
789 interface_set_up(iface
);
794 set_config_state(struct interface
*iface
, enum interface_config_state s
)
796 iface
->config_state
= s
;
797 if (iface
->state
== IFS_DOWN
)
798 interface_handle_config_change(iface
);
800 __interface_set_down(iface
, false);
804 interface_update_start(struct interface
*iface
)
806 interface_ip_update_start(&iface
->proto_ip
);
810 interface_update_complete(struct interface
*iface
)
812 interface_ip_update_complete(&iface
->proto_ip
);
816 interface_replace_dns(struct interface_ip_settings
*new, struct interface_ip_settings
*old
)
818 vlist_simple_replace(&new->dns_servers
, &old
->dns_servers
);
819 vlist_simple_replace(&new->dns_search
, &old
->dns_search
);
823 interface_change_config(struct interface
*if_old
, struct interface
*if_new
)
825 struct blob_attr
*old_config
= if_old
->config
;
826 bool reload
= false, reload_ip
= false;
828 #define FIELD_CHANGED_STR(field) \
829 ((!!if_old->field != !!if_new->field) || \
831 strcmp(if_old->field, if_new->field) != 0))
833 if (FIELD_CHANGED_STR(parent_ifname
)) {
834 if (if_old
->parent_iface
.iface
)
835 interface_remove_user(&if_old
->parent_iface
);
839 if (FIELD_CHANGED_STR(ifname
) ||
840 if_old
->proto_handler
!= if_new
->proto_handler
)
843 if (!if_old
->proto_handler
->config_params
)
844 D(INTERFACE
, "No config parameters for interface '%s'\n",
846 else if (!uci_blob_check_equal(if_old
->config
, if_new
->config
,
847 if_old
->proto_handler
->config_params
))
850 #define UPDATE(field, __var) ({ \
851 bool __changed = (if_old->field != if_new->field); \
852 if_old->field = if_new->field; \
853 __var |= __changed; \
856 if_old
->config
= if_new
->config
;
857 if (!if_old
->config_autostart
&& if_new
->config_autostart
)
858 if_old
->autostart
= true;
860 if_old
->device_config
= if_new
->device_config
;
861 if_old
->config_autostart
= if_new
->config_autostart
;
862 if_old
->ifname
= if_new
->ifname
;
863 if_old
->parent_ifname
= if_new
->parent_ifname
;
864 if_old
->proto_handler
= if_new
->proto_handler
;
866 if_old
->proto_ip
.no_dns
= if_new
->proto_ip
.no_dns
;
867 interface_replace_dns(&if_old
->config_ip
, &if_new
->config_ip
);
869 UPDATE(metric
, reload_ip
);
870 UPDATE(proto_ip
.no_defaultroute
, reload_ip
);
871 UPDATE(ip4table
, reload_ip
);
872 UPDATE(ip6table
, reload_ip
);
873 interface_merge_assignment_data(if_old
, if_new
);
878 D(INTERFACE
, "Reload interface '%s because of config changes\n",
880 interface_clear_errors(if_old
);
881 set_config_state(if_old
, IFC_RELOAD
);
886 interface_ip_set_enabled(&if_old
->config_ip
, false);
887 interface_ip_set_enabled(&if_old
->proto_ip
, false);
888 interface_ip_set_enabled(&if_old
->proto_ip
, if_new
->proto_ip
.enabled
);
889 interface_ip_set_enabled(&if_old
->config_ip
, if_new
->config_ip
.enabled
);
892 interface_write_resolv_conf();
895 if_new
->config
= NULL
;
896 interface_cleanup(if_new
);
902 interface_update(struct vlist_tree
*tree
, struct vlist_node
*node_new
,
903 struct vlist_node
*node_old
)
905 struct interface
*if_old
= container_of(node_old
, struct interface
, node
);
906 struct interface
*if_new
= container_of(node_new
, struct interface
, node
);
908 if (node_old
&& node_new
) {
909 D(INTERFACE
, "Update interface '%s'\n", if_new
->name
);
910 interface_change_config(if_old
, if_new
);
911 } else if (node_old
) {
912 D(INTERFACE
, "Remove interface '%s'\n", if_old
->name
);
913 set_config_state(if_old
, IFC_REMOVE
);
914 } else if (node_new
) {
915 D(INTERFACE
, "Create interface '%s'\n", if_new
->name
);
916 proto_init_interface(if_new
, if_new
->config
);
917 interface_claim_device(if_new
);
918 netifd_ubus_add_interface(if_new
);
924 interface_init_list(void)
926 vlist_init(&interfaces
, avl_strcmp
, interface_update
);
927 interfaces
.keep_old
= true;
928 interfaces
.no_delete
= true;