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 struct netifd_fd ubus_fd;
29 static const char *ubus_path;
34 netifd_handle_restart(struct ubus_context *ctx, struct ubus_object *obj,
35 struct ubus_request_data *req, const char *method,
36 struct blob_attr *msg)
43 netifd_handle_reload(struct ubus_context *ctx, struct ubus_object *obj,
44 struct ubus_request_data *req, const char *method,
45 struct blob_attr *msg)
57 static const struct blobmsg_policy route_policy[__HR_MAX] = {
58 [HR_TARGET] = { .name = "target", .type = BLOBMSG_TYPE_STRING },
59 [HR_V6] = { .name = "v6", .type = BLOBMSG_TYPE_BOOL },
63 netifd_add_host_route(struct ubus_context *ctx, struct ubus_object *obj,
64 struct ubus_request_data *req, const char *method,
65 struct blob_attr *msg)
67 struct blob_attr *tb[__HR_MAX];
68 struct interface *iface;
72 blobmsg_parse(route_policy, __HR_MAX, tb, blob_data(msg), blob_len(msg));
74 return UBUS_STATUS_INVALID_ARGUMENT;
77 v6 = blobmsg_get_bool(tb[HR_V6]);
79 memset(&a, 0, sizeof(a));
80 if (!inet_pton(v6 ? AF_INET6 : AF_INET, blobmsg_data(tb[HR_TARGET]), &a))
81 return UBUS_STATUS_INVALID_ARGUMENT;
84 iface = interface_ip_add_target_route(&a, v6);
86 return UBUS_STATUS_NOT_FOUND;
89 blobmsg_add_string(&b, "interface", iface->name);
90 ubus_send_reply(ctx, req, b.head);
96 netifd_get_proto_handlers(struct ubus_context *ctx, struct ubus_object *obj,
97 struct ubus_request_data *req, const char *method,
98 struct blob_attr *msg)
100 blob_buf_init(&b, 0);
101 proto_dump_handlers(&b);
102 ubus_send_reply(ctx, req, b.head);
107 static struct ubus_method main_object_methods[] = {
108 { .name = "restart", .handler = netifd_handle_restart },
109 { .name = "reload", .handler = netifd_handle_reload },
110 UBUS_METHOD("add_host_route", netifd_add_host_route, route_policy),
111 { .name = "get_proto_handlers", .handler = netifd_get_proto_handlers },
114 static struct ubus_object_type main_object_type =
115 UBUS_OBJECT_TYPE("netifd", main_object_methods);
117 static struct ubus_object main_object = {
119 .type = &main_object_type,
120 .methods = main_object_methods,
121 .n_methods = ARRAY_SIZE(main_object_methods),
129 static const struct blobmsg_policy dev_policy[__DEV_MAX] = {
130 [DEV_NAME] = { .name = "name", .type = BLOBMSG_TYPE_STRING },
134 netifd_dev_status(struct ubus_context *ctx, struct ubus_object *obj,
135 struct ubus_request_data *req, const char *method,
136 struct blob_attr *msg)
138 struct device *dev = NULL;
139 struct blob_attr *tb[__DEV_MAX];
141 blobmsg_parse(dev_policy, __DEV_MAX, tb, blob_data(msg), blob_len(msg));
144 dev = device_get(blobmsg_data(tb[DEV_NAME]), false);
146 return UBUS_STATUS_INVALID_ARGUMENT;
149 blob_buf_init(&b, 0);
150 device_dump_status(&b, dev);
151 ubus_send_reply(ctx, req, b.head);
162 static const struct blobmsg_policy alias_attrs[__ALIAS_ATTR_MAX] = {
163 [ALIAS_ATTR_ALIAS] = { "alias", BLOBMSG_TYPE_ARRAY },
164 [ALIAS_ATTR_DEV] = { "device", BLOBMSG_TYPE_STRING },
168 netifd_handle_alias(struct ubus_context *ctx, struct ubus_object *obj,
169 struct ubus_request_data *req, const char *method,
170 struct blob_attr *msg)
172 struct device *dev = NULL;
173 struct blob_attr *tb[__ALIAS_ATTR_MAX];
174 struct blob_attr *cur;
177 blobmsg_parse(alias_attrs, __ALIAS_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
179 if (!tb[ALIAS_ATTR_ALIAS])
180 return UBUS_STATUS_INVALID_ARGUMENT;
182 if ((cur = tb[ALIAS_ATTR_DEV]) != NULL) {
183 dev = device_get(blobmsg_data(cur), true);
185 return UBUS_STATUS_NOT_FOUND;
188 blobmsg_for_each_attr(cur, tb[ALIAS_ATTR_ALIAS], rem) {
189 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
192 if (!blobmsg_check_attr(cur, NULL))
195 alias_notify_device(blobmsg_data(cur), dev);
200 device_free_unused(dev);
201 return UBUS_STATUS_INVALID_ARGUMENT;
210 static const struct blobmsg_policy dev_state_policy[__DEV_STATE_MAX] = {
211 [DEV_STATE_NAME] = { .name = "name", .type = BLOBMSG_TYPE_STRING },
212 [DEV_STATE_DEFER] = { .name = "defer", .type = BLOBMSG_TYPE_BOOL },
216 netifd_handle_set_state(struct ubus_context *ctx, struct ubus_object *obj,
217 struct ubus_request_data *req, const char *method,
218 struct blob_attr *msg)
220 struct device *dev = NULL;
221 struct blob_attr *tb[__DEV_STATE_MAX];
222 struct blob_attr *cur;
224 blobmsg_parse(dev_state_policy, __DEV_STATE_MAX, tb, blob_data(msg), blob_len(msg));
226 cur = tb[DEV_STATE_NAME];
228 return UBUS_STATUS_INVALID_ARGUMENT;
230 dev = device_get(blobmsg_data(cur), false);
232 return UBUS_STATUS_NOT_FOUND;
234 cur = tb[DEV_STATE_DEFER];
236 device_set_deferred(dev, !!blobmsg_get_u8(cur));
241 static struct ubus_method dev_object_methods[] = {
242 UBUS_METHOD("status", netifd_dev_status, dev_policy),
243 UBUS_METHOD("set_alias", netifd_handle_alias, alias_attrs),
244 UBUS_METHOD("set_state", netifd_handle_set_state, dev_state_policy),
247 static struct ubus_object_type dev_object_type =
248 UBUS_OBJECT_TYPE("device", dev_object_methods);
250 static struct ubus_object dev_object = {
251 .name = "network.device",
252 .type = &dev_object_type,
253 .methods = dev_object_methods,
254 .n_methods = ARRAY_SIZE(dev_object_methods),
258 netifd_ubus_add_fd(void)
261 ubus_fd.fd = ctx->sock.fd;
262 netifd_fd_add(&ubus_fd);
266 netifd_ubus_reconnect_timer(struct uloop_timeout *timeout)
268 static struct uloop_timeout retry = {
269 .cb = netifd_ubus_reconnect_timer,
273 if (ubus_reconnect(ctx, ubus_path) != 0) {
274 DPRINTF("failed to reconnect, trying again in %d seconds\n", t);
275 uloop_timeout_set(&retry, t * 1000);
279 DPRINTF("reconnected to ubus, new id: %08x\n", ctx->local_id);
280 netifd_ubus_add_fd();
284 netifd_ubus_connection_lost(struct ubus_context *ctx)
286 netifd_fd_delete(&ubus_fd);
287 netifd_ubus_reconnect_timer(NULL);
291 netifd_ubus_init(const char *path)
298 ctx = ubus_connect(path);
302 DPRINTF("connected as %08x\n", ctx->local_id);
303 ctx->connection_lost = netifd_ubus_connection_lost;
304 netifd_ubus_add_fd();
306 ret = ubus_add_object(ctx, &main_object);
310 ret = ubus_add_object(ctx, &dev_object);
314 fprintf(stderr, "Failed to publish object: %s\n", ubus_strerror(ret));
319 netifd_ubus_done(void)
325 /* per-interface object */
328 netifd_handle_up(struct ubus_context *ctx, struct ubus_object *obj,
329 struct ubus_request_data *req, const char *method,
330 struct blob_attr *msg)
332 struct interface *iface;
334 iface = container_of(obj, struct interface, ubus);
335 interface_set_up(iface);
341 netifd_handle_down(struct ubus_context *ctx, struct ubus_object *obj,
342 struct ubus_request_data *req, const char *method,
343 struct blob_attr *msg)
345 struct interface *iface;
347 iface = container_of(obj, struct interface, ubus);
348 interface_set_down(iface);
354 netifd_add_interface_errors(struct blob_buf *b, struct interface *iface)
356 struct interface_error *error;
360 e = blobmsg_open_array(b, "errors");
361 list_for_each_entry(error, &iface->errors, list) {
362 e2 = blobmsg_open_table(b, NULL);
364 blobmsg_add_string(b, "subsystem", error->subsystem);
365 blobmsg_add_string(b, "code", error->code);
366 if (error->data[0]) {
367 e3 = blobmsg_open_array(b, "data");
368 for (i = 0; error->data[i]; i++)
369 blobmsg_add_string(b, NULL, error->data[i]);
370 blobmsg_close_array(b, e3);
373 blobmsg_close_table(b, e2);
375 blobmsg_close_array(b, e);
379 interface_ip_dump_address_list(struct interface_ip_settings *ip, bool v6)
381 struct device_addr *addr;
387 vlist_for_each_element(&ip->addr, addr, node) {
388 if ((addr->flags & DEVADDR_FAMILY) == DEVADDR_INET4)
393 if (af != (v6 ? AF_INET6 : AF_INET))
396 a = blobmsg_open_table(&b, NULL);
398 buf = blobmsg_alloc_string_buffer(&b, "address", buflen);
399 inet_ntop(af, &addr->addr, buf, buflen);
400 blobmsg_add_string_buffer(&b);
402 blobmsg_add_u32(&b, "mask", addr->mask);
404 blobmsg_close_table(&b, a);
409 interface_ip_dump_route_list(struct interface_ip_settings *ip)
411 struct device_route *route;
417 vlist_for_each_element(&ip->route, route, node) {
418 if ((route->flags & DEVADDR_FAMILY) == DEVADDR_INET4)
423 r = blobmsg_open_table(&b, NULL);
425 buf = blobmsg_alloc_string_buffer(&b, "target", buflen);
426 inet_ntop(af, &route->addr, buf, buflen);
427 blobmsg_add_string_buffer(&b);
429 blobmsg_add_u32(&b, "mask", route->mask);
431 buf = blobmsg_alloc_string_buffer(&b, "nexthop", buflen);
432 inet_ntop(af, &route->nexthop, buf, buflen);
433 blobmsg_add_string_buffer(&b);
435 if (route->flags & DEVROUTE_MTU)
436 blobmsg_add_u32(&b, "mtu", route->mtu);
438 if (route->flags & DEVROUTE_METRIC)
439 blobmsg_add_u32(&b, "metric", route->metric);
441 blobmsg_add_u8(&b, "enabled", route->enabled);
443 blobmsg_close_table(&b, r);
448 interface_ip_dump_dns_server_list(struct interface_ip_settings *ip)
450 struct dns_server *dns;
454 vlist_simple_for_each_element(&ip->dns_servers, dns, node) {
455 buf = blobmsg_alloc_string_buffer(&b, NULL, buflen);
456 inet_ntop(dns->af, &dns->addr, buf, buflen);
457 blobmsg_add_string_buffer(&b);
462 interface_ip_dump_dns_search_list(struct interface_ip_settings *ip)
464 struct dns_search_domain *dns;
466 vlist_simple_for_each_element(&ip->dns_search, dns, node) {
467 blobmsg_add_string(&b, NULL, dns->name);
472 netifd_handle_status(struct ubus_context *ctx, struct ubus_object *obj,
473 struct ubus_request_data *req, const char *method,
474 struct blob_attr *msg)
476 struct interface *iface;
477 struct interface_data *data;
481 iface = container_of(obj, struct interface, ubus);
483 blob_buf_init(&b, 0);
484 blobmsg_add_u8(&b, "up", iface->state == IFS_UP);
485 blobmsg_add_u8(&b, "pending", iface->state == IFS_SETUP);
486 blobmsg_add_u8(&b, "available", iface->available);
487 blobmsg_add_u8(&b, "autostart", iface->autostart);
489 if (iface->state == IFS_UP) {
490 time_t cur = system_get_rtime();
491 blobmsg_add_u32(&b, "uptime", cur - iface->start_time);
492 blobmsg_add_string(&b, "l3_device", iface->l3_dev.dev->ifname);
495 if (iface->proto_handler)
496 blobmsg_add_string(&b, "proto", iface->proto_handler->name);
498 dev = iface->main_dev.dev;
499 if (dev && !dev->hidden &&
500 !(iface->proto_handler->flags & PROTO_FLAG_NODEV))
501 blobmsg_add_string(&b, "device", dev->ifname);
503 if (iface->state == IFS_UP) {
504 blobmsg_add_u32(&b, "metric", iface->metric);
505 a = blobmsg_open_array(&b, "ipv4-address");
506 interface_ip_dump_address_list(&iface->config_ip, false);
507 interface_ip_dump_address_list(&iface->proto_ip, false);
508 blobmsg_close_array(&b, a);
509 a = blobmsg_open_array(&b, "ipv6-address");
510 interface_ip_dump_address_list(&iface->config_ip, true);
511 interface_ip_dump_address_list(&iface->proto_ip, true);
512 blobmsg_close_array(&b, a);
513 a = blobmsg_open_array(&b, "route");
514 interface_ip_dump_route_list(&iface->config_ip);
515 interface_ip_dump_route_list(&iface->proto_ip);
516 blobmsg_close_array(&b, a);
517 a = blobmsg_open_array(&b, "dns-server");
518 interface_ip_dump_dns_server_list(&iface->config_ip);
519 interface_ip_dump_dns_server_list(&iface->proto_ip);
520 blobmsg_close_array(&b, a);
521 a = blobmsg_open_array(&b, "dns-search");
522 interface_ip_dump_dns_search_list(&iface->config_ip);
523 interface_ip_dump_dns_search_list(&iface->proto_ip);
524 blobmsg_close_array(&b, a);
527 a = blobmsg_open_table(&b, "data");
528 avl_for_each_element(&iface->data, data, node)
529 blob_put(&b, blob_id(data->data), blob_data(data->data), blob_len(data->data));
531 blobmsg_close_table(&b, a);
533 if (!list_is_empty(&iface->errors))
534 netifd_add_interface_errors(&b, iface);
536 ubus_send_reply(ctx, req, b.head);
542 netifd_iface_handle_device(struct ubus_context *ctx, struct ubus_object *obj,
543 struct ubus_request_data *req, const char *method,
544 struct blob_attr *msg)
546 struct blob_attr *tb[__DEV_MAX];
547 struct interface *iface;
549 bool add = !strncmp(method, "add", 3);
552 iface = container_of(obj, struct interface, ubus);
554 blobmsg_parse(dev_policy, __DEV_MAX, tb, blob_data(msg), blob_len(msg));
557 return UBUS_STATUS_INVALID_ARGUMENT;
561 dev = device_get(blobmsg_data(tb[DEV_NAME]), add ? 2 : 0);
563 return UBUS_STATUS_NOT_FOUND;
566 device_set_present(dev, true);
567 if (iface->device_config)
568 device_set_config(dev, &simple_device_type, iface->config);
570 system_if_apply_settings(dev, &dev->settings);
571 ret = interface_add_link(iface, dev);
573 ret = interface_remove_link(iface, dev);
583 netifd_iface_notify_proto(struct ubus_context *ctx, struct ubus_object *obj,
584 struct ubus_request_data *req, const char *method,
585 struct blob_attr *msg)
587 struct interface *iface;
589 iface = container_of(obj, struct interface, ubus);
591 if (!iface->proto || !iface->proto->notify)
592 return UBUS_STATUS_NOT_SUPPORTED;
594 return iface->proto->notify(iface->proto, msg);
598 netifd_iface_do_remove(struct uloop_timeout *timeout)
600 struct interface *iface;
602 iface = container_of(timeout, struct interface, remove_timer);
603 vlist_delete(&interfaces, &iface->node);
607 netifd_iface_remove(struct ubus_context *ctx, struct ubus_object *obj,
608 struct ubus_request_data *req, const char *method,
609 struct blob_attr *msg)
611 struct interface *iface;
613 iface = container_of(obj, struct interface, ubus);
614 if (iface->remove_timer.cb)
615 return UBUS_STATUS_INVALID_ARGUMENT;
617 iface->remove_timer.cb = netifd_iface_do_remove;
618 uloop_timeout_set(&iface->remove_timer, 100);
623 netifd_handle_iface_prepare(struct ubus_context *ctx, struct ubus_object *obj,
624 struct ubus_request_data *req, const char *method,
625 struct blob_attr *msg)
627 struct interface *iface;
629 const struct device_hotplug_ops *ops;
631 iface = container_of(obj, struct interface, ubus);
632 dev = iface->main_dev.dev;
636 ops = dev->hotplug_ops;
640 return ops->prepare(dev);
644 netifd_handle_set_data(struct ubus_context *ctx, struct ubus_object *obj,
645 struct ubus_request_data *req, const char *method,
646 struct blob_attr *msg)
648 struct interface *iface;
649 struct blob_attr *cur;
652 iface = container_of(obj, struct interface, ubus);
654 blob_for_each_attr(cur, msg, rem) {
655 ret = interface_add_data(iface, cur);
663 static struct ubus_method iface_object_methods[] = {
664 { .name = "up", .handler = netifd_handle_up },
665 { .name = "down", .handler = netifd_handle_down },
666 { .name = "status", .handler = netifd_handle_status },
667 { .name = "prepare", .handler = netifd_handle_iface_prepare },
668 UBUS_METHOD("add_device", netifd_iface_handle_device, dev_policy ),
669 UBUS_METHOD("remove_device", netifd_iface_handle_device, dev_policy ),
670 { .name = "notify_proto", .handler = netifd_iface_notify_proto },
671 { .name = "remove", .handler = netifd_iface_remove },
672 { .name = "set_data", .handler = netifd_handle_set_data },
675 static struct ubus_object_type iface_object_type =
676 UBUS_OBJECT_TYPE("netifd_iface", iface_object_methods);
680 netifd_ubus_interface_event(struct interface *iface, bool up)
682 blob_buf_init(&b, 0);
683 blobmsg_add_string(&b, "action", up ? "ifup" : "ifdown");
684 blobmsg_add_string(&b, "interface", iface->name);
685 ubus_send_event(ctx, "network.interface", b.head);
689 netifd_ubus_add_interface(struct interface *iface)
691 struct ubus_object *obj = &iface->ubus;
694 asprintf(&name, "%s.interface.%s", main_object.name, iface->name);
699 obj->type = &iface_object_type;
700 obj->methods = iface_object_methods;
701 obj->n_methods = ARRAY_SIZE(iface_object_methods);
702 if (ubus_add_object(ctx, &iface->ubus)) {
703 DPRINTF("failed to publish ubus object for interface '%s'\n", iface->name);
710 netifd_ubus_remove_interface(struct interface *iface)
712 if (!iface->ubus.name)
715 ubus_remove_object(ctx, &iface->ubus);
716 free((void *) iface->ubus.name);