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.
16 #include <arpa/inet.h>
21 #include "interface.h"
26 static struct ubus_context *ctx = NULL;
27 static struct blob_buf b;
28 static const char *ubus_path;
33 netifd_handle_restart(struct ubus_context *ctx, struct ubus_object *obj,
34 struct ubus_request_data *req, const char *method,
35 struct blob_attr *msg)
42 netifd_handle_reload(struct ubus_context *ctx, struct ubus_object *obj,
43 struct ubus_request_data *req, const char *method,
44 struct blob_attr *msg)
56 static const struct blobmsg_policy route_policy[__HR_MAX] = {
57 [HR_TARGET] = { .name = "target", .type = BLOBMSG_TYPE_STRING },
58 [HR_V6] = { .name = "v6", .type = BLOBMSG_TYPE_BOOL },
62 netifd_add_host_route(struct ubus_context *ctx, struct ubus_object *obj,
63 struct ubus_request_data *req, const char *method,
64 struct blob_attr *msg)
66 struct blob_attr *tb[__HR_MAX];
67 struct interface *iface;
71 blobmsg_parse(route_policy, __HR_MAX, tb, blob_data(msg), blob_len(msg));
73 return UBUS_STATUS_INVALID_ARGUMENT;
76 v6 = blobmsg_get_bool(tb[HR_V6]);
78 memset(&a, 0, sizeof(a));
79 if (!inet_pton(v6 ? AF_INET6 : AF_INET, blobmsg_data(tb[HR_TARGET]), &a))
80 return UBUS_STATUS_INVALID_ARGUMENT;
83 iface = interface_ip_add_target_route(&a, v6);
85 return UBUS_STATUS_NOT_FOUND;
88 blobmsg_add_string(&b, "interface", iface->name);
89 ubus_send_reply(ctx, req, b.head);
95 netifd_get_proto_handlers(struct ubus_context *ctx, struct ubus_object *obj,
96 struct ubus_request_data *req, const char *method,
97 struct blob_attr *msg)
100 proto_dump_handlers(&b);
101 ubus_send_reply(ctx, req, b.head);
106 static struct ubus_method main_object_methods[] = {
107 { .name = "restart", .handler = netifd_handle_restart },
108 { .name = "reload", .handler = netifd_handle_reload },
109 UBUS_METHOD("add_host_route", netifd_add_host_route, route_policy),
110 { .name = "get_proto_handlers", .handler = netifd_get_proto_handlers },
113 static struct ubus_object_type main_object_type =
114 UBUS_OBJECT_TYPE("netifd", main_object_methods);
116 static struct ubus_object main_object = {
118 .type = &main_object_type,
119 .methods = main_object_methods,
120 .n_methods = ARRAY_SIZE(main_object_methods),
128 static const struct blobmsg_policy dev_policy[__DEV_MAX] = {
129 [DEV_NAME] = { .name = "name", .type = BLOBMSG_TYPE_STRING },
133 netifd_dev_status(struct ubus_context *ctx, struct ubus_object *obj,
134 struct ubus_request_data *req, const char *method,
135 struct blob_attr *msg)
137 struct device *dev = NULL;
138 struct blob_attr *tb[__DEV_MAX];
140 blobmsg_parse(dev_policy, __DEV_MAX, tb, blob_data(msg), blob_len(msg));
143 dev = device_get(blobmsg_data(tb[DEV_NAME]), false);
145 return UBUS_STATUS_INVALID_ARGUMENT;
148 blob_buf_init(&b, 0);
149 device_dump_status(&b, dev);
150 ubus_send_reply(ctx, req, b.head);
161 static const struct blobmsg_policy alias_attrs[__ALIAS_ATTR_MAX] = {
162 [ALIAS_ATTR_ALIAS] = { "alias", BLOBMSG_TYPE_ARRAY },
163 [ALIAS_ATTR_DEV] = { "device", BLOBMSG_TYPE_STRING },
167 netifd_handle_alias(struct ubus_context *ctx, struct ubus_object *obj,
168 struct ubus_request_data *req, const char *method,
169 struct blob_attr *msg)
171 struct device *dev = NULL;
172 struct blob_attr *tb[__ALIAS_ATTR_MAX];
173 struct blob_attr *cur;
176 blobmsg_parse(alias_attrs, __ALIAS_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
178 if (!tb[ALIAS_ATTR_ALIAS])
179 return UBUS_STATUS_INVALID_ARGUMENT;
181 if ((cur = tb[ALIAS_ATTR_DEV]) != NULL) {
182 dev = device_get(blobmsg_data(cur), true);
184 return UBUS_STATUS_NOT_FOUND;
187 blobmsg_for_each_attr(cur, tb[ALIAS_ATTR_ALIAS], rem) {
188 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
191 if (!blobmsg_check_attr(cur, NULL))
194 alias_notify_device(blobmsg_data(cur), dev);
199 device_free_unused(dev);
200 return UBUS_STATUS_INVALID_ARGUMENT;
209 static const struct blobmsg_policy dev_state_policy[__DEV_STATE_MAX] = {
210 [DEV_STATE_NAME] = { .name = "name", .type = BLOBMSG_TYPE_STRING },
211 [DEV_STATE_DEFER] = { .name = "defer", .type = BLOBMSG_TYPE_BOOL },
215 netifd_handle_set_state(struct ubus_context *ctx, struct ubus_object *obj,
216 struct ubus_request_data *req, const char *method,
217 struct blob_attr *msg)
219 struct device *dev = NULL;
220 struct blob_attr *tb[__DEV_STATE_MAX];
221 struct blob_attr *cur;
223 blobmsg_parse(dev_state_policy, __DEV_STATE_MAX, tb, blob_data(msg), blob_len(msg));
225 cur = tb[DEV_STATE_NAME];
227 return UBUS_STATUS_INVALID_ARGUMENT;
229 dev = device_get(blobmsg_data(cur), false);
231 return UBUS_STATUS_NOT_FOUND;
233 cur = tb[DEV_STATE_DEFER];
235 device_set_deferred(dev, !!blobmsg_get_u8(cur));
240 static struct ubus_method dev_object_methods[] = {
241 UBUS_METHOD("status", netifd_dev_status, dev_policy),
242 UBUS_METHOD("set_alias", netifd_handle_alias, alias_attrs),
243 UBUS_METHOD("set_state", netifd_handle_set_state, dev_state_policy),
246 static struct ubus_object_type dev_object_type =
247 UBUS_OBJECT_TYPE("device", dev_object_methods);
249 static struct ubus_object dev_object = {
250 .name = "network.device",
251 .type = &dev_object_type,
252 .methods = dev_object_methods,
253 .n_methods = ARRAY_SIZE(dev_object_methods),
257 netifd_ubus_add_fd(void)
260 system_fd_set_cloexec(ctx->sock.fd);
264 netifd_ubus_reconnect_timer(struct uloop_timeout *timeout)
266 static struct uloop_timeout retry = {
267 .cb = netifd_ubus_reconnect_timer,
271 if (ubus_reconnect(ctx, ubus_path) != 0) {
272 DPRINTF("failed to reconnect, trying again in %d seconds\n", t);
273 uloop_timeout_set(&retry, t * 1000);
277 DPRINTF("reconnected to ubus, new id: %08x\n", ctx->local_id);
278 netifd_ubus_add_fd();
282 netifd_ubus_connection_lost(struct ubus_context *ctx)
284 netifd_ubus_reconnect_timer(NULL);
288 netifd_ubus_init(const char *path)
295 ctx = ubus_connect(path);
299 DPRINTF("connected as %08x\n", ctx->local_id);
300 ctx->connection_lost = netifd_ubus_connection_lost;
301 netifd_ubus_add_fd();
303 ret = ubus_add_object(ctx, &main_object);
307 ret = ubus_add_object(ctx, &dev_object);
311 fprintf(stderr, "Failed to publish object: %s\n", ubus_strerror(ret));
316 netifd_ubus_done(void)
322 /* per-interface object */
325 netifd_handle_up(struct ubus_context *ctx, struct ubus_object *obj,
326 struct ubus_request_data *req, const char *method,
327 struct blob_attr *msg)
329 struct interface *iface;
331 iface = container_of(obj, struct interface, ubus);
332 interface_set_up(iface);
338 netifd_handle_down(struct ubus_context *ctx, struct ubus_object *obj,
339 struct ubus_request_data *req, const char *method,
340 struct blob_attr *msg)
342 struct interface *iface;
344 iface = container_of(obj, struct interface, ubus);
345 interface_set_down(iface);
351 netifd_add_interface_errors(struct blob_buf *b, struct interface *iface)
353 struct interface_error *error;
357 e = blobmsg_open_array(b, "errors");
358 list_for_each_entry(error, &iface->errors, list) {
359 e2 = blobmsg_open_table(b, NULL);
361 blobmsg_add_string(b, "subsystem", error->subsystem);
362 blobmsg_add_string(b, "code", error->code);
363 if (error->data[0]) {
364 e3 = blobmsg_open_array(b, "data");
365 for (i = 0; error->data[i]; i++)
366 blobmsg_add_string(b, NULL, error->data[i]);
367 blobmsg_close_array(b, e3);
370 blobmsg_close_table(b, e2);
372 blobmsg_close_array(b, e);
376 interface_ip_dump_address_list(struct interface_ip_settings *ip, bool v6,
379 struct device_addr *addr;
385 vlist_for_each_element(&ip->addr, addr, node) {
386 if (addr->enabled != enabled)
389 if ((addr->flags & DEVADDR_FAMILY) == DEVADDR_INET4)
394 if (af != (v6 ? AF_INET6 : AF_INET))
397 a = blobmsg_open_table(&b, NULL);
399 buf = blobmsg_alloc_string_buffer(&b, "address", buflen);
400 inet_ntop(af, &addr->addr, buf, buflen);
401 blobmsg_add_string_buffer(&b);
403 blobmsg_add_u32(&b, "mask", addr->mask);
405 blobmsg_close_table(&b, a);
410 interface_ip_dump_route_list(struct interface_ip_settings *ip, bool enabled)
412 struct device_route *route;
418 vlist_for_each_element(&ip->route, route, node) {
419 if (route->enabled != enabled)
422 if ((route->flags & DEVADDR_FAMILY) == DEVADDR_INET4)
427 r = blobmsg_open_table(&b, NULL);
429 buf = blobmsg_alloc_string_buffer(&b, "target", buflen);
430 inet_ntop(af, &route->addr, buf, buflen);
431 blobmsg_add_string_buffer(&b);
433 blobmsg_add_u32(&b, "mask", route->mask);
435 buf = blobmsg_alloc_string_buffer(&b, "nexthop", buflen);
436 inet_ntop(af, &route->nexthop, buf, buflen);
437 blobmsg_add_string_buffer(&b);
439 if (route->flags & DEVROUTE_MTU)
440 blobmsg_add_u32(&b, "mtu", route->mtu);
442 if (route->flags & DEVROUTE_METRIC)
443 blobmsg_add_u32(&b, "metric", route->metric);
445 blobmsg_close_table(&b, r);
450 interface_ip_dump_dns_server_list(struct interface_ip_settings *ip,
453 struct dns_server *dns;
457 vlist_simple_for_each_element(&ip->dns_servers, dns, node) {
458 if (ip->no_dns == enabled)
461 buf = blobmsg_alloc_string_buffer(&b, NULL, buflen);
462 inet_ntop(dns->af, &dns->addr, buf, buflen);
463 blobmsg_add_string_buffer(&b);
468 interface_ip_dump_dns_search_list(struct interface_ip_settings *ip,
471 struct dns_search_domain *dns;
473 vlist_simple_for_each_element(&ip->dns_search, dns, node) {
474 if (ip->no_dns == enabled)
477 blobmsg_add_string(&b, NULL, dns->name);
482 netifd_handle_status(struct ubus_context *ctx, struct ubus_object *obj,
483 struct ubus_request_data *req, const char *method,
484 struct blob_attr *msg)
486 struct interface *iface;
487 struct interface_data *data;
491 iface = container_of(obj, struct interface, ubus);
493 blob_buf_init(&b, 0);
494 blobmsg_add_u8(&b, "up", iface->state == IFS_UP);
495 blobmsg_add_u8(&b, "pending", iface->state == IFS_SETUP);
496 blobmsg_add_u8(&b, "available", iface->available);
497 blobmsg_add_u8(&b, "autostart", iface->autostart);
499 if (iface->state == IFS_UP) {
500 time_t cur = system_get_rtime();
501 blobmsg_add_u32(&b, "uptime", cur - iface->start_time);
502 blobmsg_add_string(&b, "l3_device", iface->l3_dev.dev->ifname);
505 if (iface->proto_handler)
506 blobmsg_add_string(&b, "proto", iface->proto_handler->name);
508 dev = iface->main_dev.dev;
509 if (dev && !dev->hidden &&
510 !(iface->proto_handler->flags & PROTO_FLAG_NODEV))
511 blobmsg_add_string(&b, "device", dev->ifname);
513 if (iface->state == IFS_UP) {
514 blobmsg_add_u32(&b, "metric", iface->metric);
515 a = blobmsg_open_array(&b, "ipv4-address");
516 interface_ip_dump_address_list(&iface->config_ip, false, true);
517 interface_ip_dump_address_list(&iface->proto_ip, false, true);
518 blobmsg_close_array(&b, a);
519 a = blobmsg_open_array(&b, "ipv6-address");
520 interface_ip_dump_address_list(&iface->config_ip, true, true);
521 interface_ip_dump_address_list(&iface->proto_ip, true, true);
522 blobmsg_close_array(&b, a);
523 a = blobmsg_open_array(&b, "route");
524 interface_ip_dump_route_list(&iface->config_ip, true);
525 interface_ip_dump_route_list(&iface->proto_ip, true);
526 blobmsg_close_array(&b, a);
527 a = blobmsg_open_array(&b, "dns-server");
528 interface_ip_dump_dns_server_list(&iface->config_ip, true);
529 interface_ip_dump_dns_server_list(&iface->proto_ip, true);
530 blobmsg_close_array(&b, a);
531 a = blobmsg_open_array(&b, "dns-search");
532 interface_ip_dump_dns_search_list(&iface->config_ip, true);
533 interface_ip_dump_dns_search_list(&iface->proto_ip, true);
534 blobmsg_close_array(&b, a);
536 inactive = blobmsg_open_table(&b, "inactive");
537 a = blobmsg_open_array(&b, "ipv4-address");
538 interface_ip_dump_address_list(&iface->config_ip, false, false);
539 interface_ip_dump_address_list(&iface->proto_ip, false, false);
540 blobmsg_close_array(&b, a);
541 a = blobmsg_open_array(&b, "ipv6-address");
542 interface_ip_dump_address_list(&iface->config_ip, true, false);
543 interface_ip_dump_address_list(&iface->proto_ip, true, false);
544 blobmsg_close_array(&b, a);
545 a = blobmsg_open_array(&b, "route");
546 interface_ip_dump_route_list(&iface->config_ip, false);
547 interface_ip_dump_route_list(&iface->proto_ip, false);
548 blobmsg_close_array(&b, a);
549 a = blobmsg_open_array(&b, "dns-server");
550 interface_ip_dump_dns_server_list(&iface->config_ip, false);
551 interface_ip_dump_dns_server_list(&iface->proto_ip, false);
552 blobmsg_close_array(&b, a);
553 a = blobmsg_open_array(&b, "dns-search");
554 interface_ip_dump_dns_search_list(&iface->config_ip, false);
555 interface_ip_dump_dns_search_list(&iface->proto_ip, false);
556 blobmsg_close_array(&b, a);
557 blobmsg_close_table(&b, inactive);
560 a = blobmsg_open_table(&b, "data");
561 avl_for_each_element(&iface->data, data, node)
562 blob_put(&b, blob_id(data->data), blob_data(data->data), blob_len(data->data));
564 blobmsg_close_table(&b, a);
566 if (!list_is_empty(&iface->errors))
567 netifd_add_interface_errors(&b, iface);
569 ubus_send_reply(ctx, req, b.head);
575 netifd_iface_handle_device(struct ubus_context *ctx, struct ubus_object *obj,
576 struct ubus_request_data *req, const char *method,
577 struct blob_attr *msg)
579 struct blob_attr *tb[__DEV_MAX];
580 struct interface *iface;
582 bool add = !strncmp(method, "add", 3);
585 iface = container_of(obj, struct interface, ubus);
587 blobmsg_parse(dev_policy, __DEV_MAX, tb, blob_data(msg), blob_len(msg));
590 return UBUS_STATUS_INVALID_ARGUMENT;
594 dev = device_get(blobmsg_data(tb[DEV_NAME]), add ? 2 : 0);
596 ret = UBUS_STATUS_NOT_FOUND;
601 device_set_present(dev, true);
602 if (iface->device_config)
603 device_set_config(dev, &simple_device_type, iface->config);
605 system_if_apply_settings(dev, &dev->settings);
606 ret = interface_add_link(iface, dev);
608 ret = interface_remove_link(iface, dev);
619 netifd_iface_notify_proto(struct ubus_context *ctx, struct ubus_object *obj,
620 struct ubus_request_data *req, const char *method,
621 struct blob_attr *msg)
623 struct interface *iface;
625 iface = container_of(obj, struct interface, ubus);
627 if (!iface->proto || !iface->proto->notify)
628 return UBUS_STATUS_NOT_SUPPORTED;
630 return iface->proto->notify(iface->proto, msg);
634 netifd_iface_do_remove(struct uloop_timeout *timeout)
636 struct interface *iface;
638 iface = container_of(timeout, struct interface, remove_timer);
639 vlist_delete(&interfaces, &iface->node);
643 netifd_iface_remove(struct ubus_context *ctx, struct ubus_object *obj,
644 struct ubus_request_data *req, const char *method,
645 struct blob_attr *msg)
647 struct interface *iface;
649 iface = container_of(obj, struct interface, ubus);
650 if (iface->remove_timer.cb)
651 return UBUS_STATUS_INVALID_ARGUMENT;
653 iface->remove_timer.cb = netifd_iface_do_remove;
654 uloop_timeout_set(&iface->remove_timer, 100);
659 netifd_handle_iface_prepare(struct ubus_context *ctx, struct ubus_object *obj,
660 struct ubus_request_data *req, const char *method,
661 struct blob_attr *msg)
663 struct interface *iface;
665 const struct device_hotplug_ops *ops;
667 iface = container_of(obj, struct interface, ubus);
668 dev = iface->main_dev.dev;
672 ops = dev->hotplug_ops;
676 return ops->prepare(dev);
680 netifd_handle_set_data(struct ubus_context *ctx, struct ubus_object *obj,
681 struct ubus_request_data *req, const char *method,
682 struct blob_attr *msg)
684 struct interface *iface;
685 struct blob_attr *cur;
688 iface = container_of(obj, struct interface, ubus);
690 blob_for_each_attr(cur, msg, rem) {
691 ret = interface_add_data(iface, cur);
699 static struct ubus_method iface_object_methods[] = {
700 { .name = "up", .handler = netifd_handle_up },
701 { .name = "down", .handler = netifd_handle_down },
702 { .name = "status", .handler = netifd_handle_status },
703 { .name = "prepare", .handler = netifd_handle_iface_prepare },
704 UBUS_METHOD("add_device", netifd_iface_handle_device, dev_policy ),
705 UBUS_METHOD("remove_device", netifd_iface_handle_device, dev_policy ),
706 { .name = "notify_proto", .handler = netifd_iface_notify_proto },
707 { .name = "remove", .handler = netifd_iface_remove },
708 { .name = "set_data", .handler = netifd_handle_set_data },
711 static struct ubus_object_type iface_object_type =
712 UBUS_OBJECT_TYPE("netifd_iface", iface_object_methods);
716 netifd_ubus_interface_event(struct interface *iface, bool up)
718 blob_buf_init(&b, 0);
719 blobmsg_add_string(&b, "action", up ? "ifup" : "ifdown");
720 blobmsg_add_string(&b, "interface", iface->name);
721 ubus_send_event(ctx, "network.interface", b.head);
725 netifd_ubus_add_interface(struct interface *iface)
727 struct ubus_object *obj = &iface->ubus;
730 asprintf(&name, "%s.interface.%s", main_object.name, iface->name);
735 obj->type = &iface_object_type;
736 obj->methods = iface_object_methods;
737 obj->n_methods = ARRAY_SIZE(iface_object_methods);
738 if (ubus_add_object(ctx, &iface->ubus)) {
739 DPRINTF("failed to publish ubus object for interface '%s'\n", iface->name);
746 netifd_ubus_remove_interface(struct interface *iface)
748 if (!iface->ubus.name)
751 ubus_remove_object(ctx, &iface->ubus);
752 free((void *) iface->ubus.name);