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;
204 static struct ubus_method dev_object_methods[] = {
205 UBUS_METHOD("status", netifd_dev_status, dev_policy),
206 UBUS_METHOD("set_alias", netifd_handle_alias, alias_attrs),
209 static struct ubus_object_type dev_object_type =
210 UBUS_OBJECT_TYPE("device", dev_object_methods);
212 static struct ubus_object dev_object = {
213 .name = "network.device",
214 .type = &dev_object_type,
215 .methods = dev_object_methods,
216 .n_methods = ARRAY_SIZE(dev_object_methods),
220 netifd_ubus_add_fd(void)
223 ubus_fd.fd = ctx->sock.fd;
224 netifd_fd_add(&ubus_fd);
228 netifd_ubus_reconnect_timer(struct uloop_timeout *timeout)
230 static struct uloop_timeout retry = {
231 .cb = netifd_ubus_reconnect_timer,
235 if (ubus_reconnect(ctx, ubus_path) != 0) {
236 DPRINTF("failed to reconnect, trying again in %d seconds\n", t);
237 uloop_timeout_set(&retry, t * 1000);
241 DPRINTF("reconnected to ubus, new id: %08x\n", ctx->local_id);
242 netifd_ubus_add_fd();
246 netifd_ubus_connection_lost(struct ubus_context *ctx)
248 netifd_fd_delete(&ubus_fd);
249 netifd_ubus_reconnect_timer(NULL);
253 netifd_ubus_init(const char *path)
260 ctx = ubus_connect(path);
264 DPRINTF("connected as %08x\n", ctx->local_id);
265 ctx->connection_lost = netifd_ubus_connection_lost;
266 netifd_ubus_add_fd();
268 ret = ubus_add_object(ctx, &main_object);
272 ret = ubus_add_object(ctx, &dev_object);
276 fprintf(stderr, "Failed to publish object: %s\n", ubus_strerror(ret));
281 netifd_ubus_done(void)
287 /* per-interface object */
290 netifd_handle_up(struct ubus_context *ctx, struct ubus_object *obj,
291 struct ubus_request_data *req, const char *method,
292 struct blob_attr *msg)
294 struct interface *iface;
296 iface = container_of(obj, struct interface, ubus);
297 interface_set_up(iface);
303 netifd_handle_down(struct ubus_context *ctx, struct ubus_object *obj,
304 struct ubus_request_data *req, const char *method,
305 struct blob_attr *msg)
307 struct interface *iface;
309 iface = container_of(obj, struct interface, ubus);
310 interface_set_down(iface);
316 netifd_add_interface_errors(struct blob_buf *b, struct interface *iface)
318 struct interface_error *error;
322 e = blobmsg_open_array(b, "errors");
323 list_for_each_entry(error, &iface->errors, list) {
324 e2 = blobmsg_open_table(b, NULL);
326 blobmsg_add_string(b, "subsystem", error->subsystem);
327 blobmsg_add_string(b, "code", error->code);
328 if (error->data[0]) {
329 e3 = blobmsg_open_array(b, "data");
330 for (i = 0; error->data[i]; i++)
331 blobmsg_add_string(b, NULL, error->data[i]);
332 blobmsg_close_array(b, e3);
335 blobmsg_close_table(b, e2);
337 blobmsg_close_array(b, e);
341 interface_ip_dump_address_list(struct interface_ip_settings *ip, bool v6)
343 struct device_addr *addr;
349 vlist_for_each_element(&ip->addr, addr, node) {
350 if ((addr->flags & DEVADDR_FAMILY) == DEVADDR_INET4)
355 if (af != (v6 ? AF_INET6 : AF_INET))
358 a = blobmsg_open_table(&b, NULL);
360 buf = blobmsg_alloc_string_buffer(&b, "address", buflen);
361 inet_ntop(af, &addr->addr, buf, buflen);
362 blobmsg_add_string_buffer(&b);
364 blobmsg_add_u32(&b, "mask", addr->mask);
366 blobmsg_close_table(&b, a);
371 interface_ip_dump_route_list(struct interface_ip_settings *ip)
373 struct device_route *route;
379 vlist_for_each_element(&ip->route, route, node) {
380 if ((route->flags & DEVADDR_FAMILY) == DEVADDR_INET4)
385 r = blobmsg_open_table(&b, NULL);
387 buf = blobmsg_alloc_string_buffer(&b, "target", buflen);
388 inet_ntop(af, &route->addr, buf, buflen);
389 blobmsg_add_string_buffer(&b);
391 blobmsg_add_u32(&b, "mask", route->mask);
393 buf = blobmsg_alloc_string_buffer(&b, "nexthop", buflen);
394 inet_ntop(af, &route->nexthop, buf, buflen);
395 blobmsg_add_string_buffer(&b);
397 blobmsg_close_table(&b, r);
402 interface_ip_dump_dns_server_list(struct interface_ip_settings *ip)
404 struct dns_server *dns;
408 vlist_simple_for_each_element(&ip->dns_servers, dns, node) {
409 buf = blobmsg_alloc_string_buffer(&b, NULL, buflen);
410 inet_ntop(dns->af, &dns->addr, buf, buflen);
411 blobmsg_add_string_buffer(&b);
416 interface_ip_dump_dns_search_list(struct interface_ip_settings *ip)
418 struct dns_search_domain *dns;
420 vlist_simple_for_each_element(&ip->dns_search, dns, node) {
421 blobmsg_add_string(&b, NULL, dns->name);
426 netifd_handle_status(struct ubus_context *ctx, struct ubus_object *obj,
427 struct ubus_request_data *req, const char *method,
428 struct blob_attr *msg)
430 struct interface *iface;
431 struct interface_data *data;
435 iface = container_of(obj, struct interface, ubus);
437 blob_buf_init(&b, 0);
438 blobmsg_add_u8(&b, "up", iface->state == IFS_UP);
439 blobmsg_add_u8(&b, "pending", iface->state == IFS_SETUP);
440 blobmsg_add_u8(&b, "available", iface->available);
441 blobmsg_add_u8(&b, "autostart", iface->autostart);
443 if (iface->state == IFS_UP) {
444 time_t cur = system_get_rtime();
445 blobmsg_add_u32(&b, "uptime", cur - iface->start_time);
446 blobmsg_add_string(&b, "l3_device", iface->l3_dev.dev->ifname);
449 if (iface->proto_handler)
450 blobmsg_add_string(&b, "proto", iface->proto_handler->name);
452 dev = iface->main_dev.dev;
453 if (dev && !(iface->proto_handler->flags & PROTO_FLAG_NODEV))
454 blobmsg_add_string(&b, "device", dev->ifname);
456 if (iface->state == IFS_UP) {
457 a = blobmsg_open_array(&b, "ipv4-address");
458 interface_ip_dump_address_list(&iface->config_ip, false);
459 interface_ip_dump_address_list(&iface->proto_ip, false);
460 blobmsg_close_array(&b, a);
461 a = blobmsg_open_array(&b, "ipv6-address");
462 interface_ip_dump_address_list(&iface->config_ip, true);
463 interface_ip_dump_address_list(&iface->proto_ip, true);
464 blobmsg_close_array(&b, a);
465 a = blobmsg_open_array(&b, "route");
466 interface_ip_dump_route_list(&iface->config_ip);
467 interface_ip_dump_route_list(&iface->proto_ip);
468 blobmsg_close_array(&b, a);
469 a = blobmsg_open_array(&b, "dns-server");
470 interface_ip_dump_dns_server_list(&iface->config_ip);
471 interface_ip_dump_dns_server_list(&iface->proto_ip);
472 blobmsg_close_array(&b, a);
473 a = blobmsg_open_array(&b, "dns-search");
474 interface_ip_dump_dns_search_list(&iface->config_ip);
475 interface_ip_dump_dns_search_list(&iface->proto_ip);
476 blobmsg_close_array(&b, a);
479 a = blobmsg_open_table(&b, "data");
480 avl_for_each_element(&iface->data, data, node)
481 blob_put(&b, blob_id(data->data), blob_data(data->data), blob_len(data->data));
483 blobmsg_close_table(&b, a);
485 if (!list_is_empty(&iface->errors))
486 netifd_add_interface_errors(&b, iface);
488 ubus_send_reply(ctx, req, b.head);
494 netifd_iface_handle_device(struct ubus_context *ctx, struct ubus_object *obj,
495 struct ubus_request_data *req, const char *method,
496 struct blob_attr *msg)
498 struct blob_attr *tb[__DEV_MAX];
499 struct interface *iface;
501 bool add = !strncmp(method, "add", 3);
504 iface = container_of(obj, struct interface, ubus);
506 blobmsg_parse(dev_policy, __DEV_MAX, tb, blob_data(msg), blob_len(msg));
509 return UBUS_STATUS_INVALID_ARGUMENT;
513 dev = device_get(blobmsg_data(tb[DEV_NAME]), add ? 2 : 0);
515 return UBUS_STATUS_NOT_FOUND;
518 return interface_add_link(iface, dev);
520 return interface_remove_link(iface, dev);
529 netifd_iface_notify_proto(struct ubus_context *ctx, struct ubus_object *obj,
530 struct ubus_request_data *req, const char *method,
531 struct blob_attr *msg)
533 struct interface *iface;
535 iface = container_of(obj, struct interface, ubus);
537 if (!iface->proto || !iface->proto->notify)
538 return UBUS_STATUS_NOT_SUPPORTED;
540 return iface->proto->notify(iface->proto, msg);
544 netifd_iface_do_remove(struct uloop_timeout *timeout)
546 struct interface *iface;
548 iface = container_of(timeout, struct interface, remove_timer);
549 vlist_delete(&interfaces, &iface->node);
553 netifd_iface_remove(struct ubus_context *ctx, struct ubus_object *obj,
554 struct ubus_request_data *req, const char *method,
555 struct blob_attr *msg)
557 struct interface *iface;
559 iface = container_of(obj, struct interface, ubus);
560 if (iface->remove_timer.cb)
561 return UBUS_STATUS_INVALID_ARGUMENT;
563 iface->remove_timer.cb = netifd_iface_do_remove;
564 uloop_timeout_set(&iface->remove_timer, 100);
569 netifd_handle_iface_prepare(struct ubus_context *ctx, struct ubus_object *obj,
570 struct ubus_request_data *req, const char *method,
571 struct blob_attr *msg)
573 struct interface *iface;
575 const struct device_hotplug_ops *ops;
577 iface = container_of(obj, struct interface, ubus);
578 dev = iface->main_dev.dev;
582 ops = dev->hotplug_ops;
586 return ops->prepare(dev);
590 netifd_handle_set_data(struct ubus_context *ctx, struct ubus_object *obj,
591 struct ubus_request_data *req, const char *method,
592 struct blob_attr *msg)
594 struct interface *iface;
595 struct blob_attr *cur;
598 iface = container_of(obj, struct interface, ubus);
600 blob_for_each_attr(cur, msg, rem) {
601 ret = interface_add_data(iface, cur);
609 static struct ubus_method iface_object_methods[] = {
610 { .name = "up", .handler = netifd_handle_up },
611 { .name = "down", .handler = netifd_handle_down },
612 { .name = "status", .handler = netifd_handle_status },
613 { .name = "prepare", .handler = netifd_handle_iface_prepare },
614 UBUS_METHOD("add_device", netifd_iface_handle_device, dev_policy ),
615 UBUS_METHOD("remove_device", netifd_iface_handle_device, dev_policy ),
616 { .name = "notify_proto", .handler = netifd_iface_notify_proto },
617 { .name = "remove", .handler = netifd_iface_remove },
618 { .name = "set_data", .handler = netifd_handle_set_data },
621 static struct ubus_object_type iface_object_type =
622 UBUS_OBJECT_TYPE("netifd_iface", iface_object_methods);
626 netifd_ubus_interface_event(struct interface *iface, bool up)
628 blob_buf_init(&b, 0);
629 blobmsg_add_string(&b, "action", up ? "ifup" : "ifdown");
630 blobmsg_add_string(&b, "interface", iface->name);
631 ubus_send_event(ctx, "network.interface", b.head);
635 netifd_ubus_add_interface(struct interface *iface)
637 struct ubus_object *obj = &iface->ubus;
640 asprintf(&name, "%s.interface.%s", main_object.name, iface->name);
645 obj->type = &iface_object_type;
646 obj->methods = iface_object_methods;
647 obj->n_methods = ARRAY_SIZE(iface_object_methods);
648 if (ubus_add_object(ctx, &iface->ubus)) {
649 DPRINTF("failed to publish ubus object for interface '%s'\n", iface->name);
656 netifd_ubus_remove_interface(struct interface *iface)
658 if (!iface->ubus.name)
661 ubus_remove_object(ctx, &iface->ubus);
662 free((void *) iface->ubus.name);