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cfdfcf3ae967e4b7eee97001c5a772d4ffd89bad
[project/netifd.git] / ubus.c
1 /*
2 * netifd - network interface daemon
3 * Copyright (C) 2012 Felix Fietkau <nbd@openwrt.org>
4 *
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
8 *
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.
13 */
14 #define _GNU_SOURCE
15
16 #include <arpa/inet.h>
17 #include <string.h>
18 #include <stdio.h>
19
20 #include "netifd.h"
21 #include "interface.h"
22 #include "proto.h"
23 #include "ubus.h"
24 #include "system.h"
25
26 static struct ubus_context *ctx = NULL;
27 static struct blob_buf b;
28 static const char *ubus_path;
29
30 /* global object */
31
32 static int
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)
36 {
37 netifd_restart();
38 return 0;
39 }
40
41 static int
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)
45 {
46 netifd_reload();
47 return 0;
48 }
49
50 enum {
51 HR_TARGET,
52 HR_V6,
53 HR_INTERFACE,
54 __HR_MAX
55 };
56
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 },
60 [HR_INTERFACE] = { .name = "interface", .type = BLOBMSG_TYPE_STRING },
61 };
62
63 static int
64 netifd_add_host_route(struct ubus_context *ctx, struct ubus_object *obj,
65 struct ubus_request_data *req, const char *method,
66 struct blob_attr *msg)
67 {
68 struct blob_attr *tb[__HR_MAX];
69 struct interface *iface = NULL;
70 union if_addr a;
71 bool v6 = false;
72
73 blobmsg_parse(route_policy, __HR_MAX, tb, blob_data(msg), blob_len(msg));
74 if (!tb[HR_TARGET])
75 return UBUS_STATUS_INVALID_ARGUMENT;
76
77 if (tb[HR_V6])
78 v6 = blobmsg_get_bool(tb[HR_V6]);
79
80 if (tb[HR_INTERFACE])
81 iface = vlist_find(&interfaces, blobmsg_data(tb[HR_INTERFACE]), iface, node);
82
83 memset(&a, 0, sizeof(a));
84 if (!inet_pton(v6 ? AF_INET6 : AF_INET, blobmsg_data(tb[HR_TARGET]), &a))
85 return UBUS_STATUS_INVALID_ARGUMENT;
86
87
88 iface = interface_ip_add_target_route(&a, v6, iface);
89 if (!iface)
90 return UBUS_STATUS_NOT_FOUND;
91
92 blob_buf_init(&b, 0);
93 blobmsg_add_string(&b, "interface", iface->name);
94 ubus_send_reply(ctx, req, b.head);
95
96 return 0;
97 }
98
99 static int
100 netifd_get_proto_handlers(struct ubus_context *ctx, struct ubus_object *obj,
101 struct ubus_request_data *req, const char *method,
102 struct blob_attr *msg)
103 {
104 blob_buf_init(&b, 0);
105 proto_dump_handlers(&b);
106 ubus_send_reply(ctx, req, b.head);
107
108 return 0;
109 }
110
111
112 enum {
113 DI_NAME,
114 __DI_MAX
115 };
116
117 static const struct blobmsg_policy dynamic_policy[__DI_MAX] = {
118 [DI_NAME] = { .name = "name", .type = BLOBMSG_TYPE_STRING },
119 };
120
121 static int
122 netifd_add_dynamic(struct ubus_context *ctx, struct ubus_object *obj,
123 struct ubus_request_data *req, const char *method,
124 struct blob_attr *msg)
125 {
126 struct blob_attr *tb[__DI_MAX];
127 struct interface *iface;
128 struct blob_attr *config;
129 struct device *dev;
130
131 blobmsg_parse(dynamic_policy, __DI_MAX, tb, blob_data(msg), blob_len(msg));
132
133 if (!tb[DI_NAME])
134 return UBUS_STATUS_INVALID_ARGUMENT;
135
136 const char *name = blobmsg_get_string(tb[DI_NAME]);
137
138 iface = calloc(1, sizeof(*iface));
139 if (!iface)
140 return UBUS_STATUS_UNKNOWN_ERROR;
141
142 interface_init(iface, name, msg);
143 interface_set_dynamic(iface);
144 iface->device_config = true;
145
146 config = blob_memdup(msg);
147 if (!config)
148 goto error;
149
150 interface_add(iface, config);
151
152 // need to look up the interface name again, in case of config update,
153 iface = vlist_find(&interfaces, name, iface, node);
154 if (!iface)
155 return UBUS_STATUS_UNKNOWN_ERROR;
156
157 dev = iface->main_dev.dev;
158 if (!dev || !dev->default_config)
159 return UBUS_STATUS_UNKNOWN_ERROR;
160
161 device_set_config(dev, dev->type, msg);
162 return UBUS_STATUS_OK;
163
164 error:
165 free(iface);
166 return UBUS_STATUS_UNKNOWN_ERROR;
167 }
168
169 static struct ubus_method main_object_methods[] = {
170 { .name = "restart", .handler = netifd_handle_restart },
171 { .name = "reload", .handler = netifd_handle_reload },
172 UBUS_METHOD("add_host_route", netifd_add_host_route, route_policy),
173 { .name = "get_proto_handlers", .handler = netifd_get_proto_handlers },
174 UBUS_METHOD("add_dynamic", netifd_add_dynamic, dynamic_policy),
175 };
176
177 static struct ubus_object_type main_object_type =
178 UBUS_OBJECT_TYPE("netifd", main_object_methods);
179
180 static struct ubus_object main_object = {
181 .name = "network",
182 .type = &main_object_type,
183 .methods = main_object_methods,
184 .n_methods = ARRAY_SIZE(main_object_methods),
185 };
186
187 enum {
188 DEV_NAME,
189 __DEV_MAX,
190 };
191
192 static const struct blobmsg_policy dev_policy[__DEV_MAX] = {
193 [DEV_NAME] = { .name = "name", .type = BLOBMSG_TYPE_STRING },
194 };
195
196 static int
197 netifd_dev_status(struct ubus_context *ctx, struct ubus_object *obj,
198 struct ubus_request_data *req, const char *method,
199 struct blob_attr *msg)
200 {
201 struct device *dev = NULL;
202 struct blob_attr *tb[__DEV_MAX];
203
204 blobmsg_parse(dev_policy, __DEV_MAX, tb, blob_data(msg), blob_len(msg));
205
206 if (tb[DEV_NAME]) {
207 dev = device_get(blobmsg_data(tb[DEV_NAME]), false);
208 if (!dev)
209 return UBUS_STATUS_INVALID_ARGUMENT;
210 }
211
212 blob_buf_init(&b, 0);
213 device_dump_status(&b, dev);
214 ubus_send_reply(ctx, req, b.head);
215
216 return 0;
217 }
218
219 enum {
220 ALIAS_ATTR_ALIAS,
221 ALIAS_ATTR_DEV,
222 __ALIAS_ATTR_MAX,
223 };
224
225 static const struct blobmsg_policy alias_attrs[__ALIAS_ATTR_MAX] = {
226 [ALIAS_ATTR_ALIAS] = { "alias", BLOBMSG_TYPE_ARRAY },
227 [ALIAS_ATTR_DEV] = { "device", BLOBMSG_TYPE_STRING },
228 };
229
230 static int
231 netifd_handle_alias(struct ubus_context *ctx, struct ubus_object *obj,
232 struct ubus_request_data *req, const char *method,
233 struct blob_attr *msg)
234 {
235 struct device *dev = NULL;
236 struct blob_attr *tb[__ALIAS_ATTR_MAX];
237 struct blob_attr *cur;
238 int rem;
239
240 blobmsg_parse(alias_attrs, __ALIAS_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
241
242 if (!tb[ALIAS_ATTR_ALIAS])
243 return UBUS_STATUS_INVALID_ARGUMENT;
244
245 if ((cur = tb[ALIAS_ATTR_DEV]) != NULL) {
246 dev = device_get(blobmsg_data(cur), true);
247 if (!dev)
248 return UBUS_STATUS_NOT_FOUND;
249 }
250
251 blobmsg_for_each_attr(cur, tb[ALIAS_ATTR_ALIAS], rem) {
252 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
253 goto error;
254
255 if (!blobmsg_check_attr(cur, NULL))
256 goto error;
257
258 alias_notify_device(blobmsg_data(cur), dev);
259 }
260 return 0;
261
262 error:
263 device_free_unused(dev);
264 return UBUS_STATUS_INVALID_ARGUMENT;
265 }
266
267 enum {
268 DEV_STATE_NAME,
269 DEV_STATE_DEFER,
270 __DEV_STATE_MAX,
271 };
272
273 static const struct blobmsg_policy dev_state_policy[__DEV_STATE_MAX] = {
274 [DEV_STATE_NAME] = { .name = "name", .type = BLOBMSG_TYPE_STRING },
275 [DEV_STATE_DEFER] = { .name = "defer", .type = BLOBMSG_TYPE_BOOL },
276 };
277
278 static int
279 netifd_handle_set_state(struct ubus_context *ctx, struct ubus_object *obj,
280 struct ubus_request_data *req, const char *method,
281 struct blob_attr *msg)
282 {
283 struct device *dev = NULL;
284 struct blob_attr *tb[__DEV_STATE_MAX];
285 struct blob_attr *cur;
286
287 blobmsg_parse(dev_state_policy, __DEV_STATE_MAX, tb, blob_data(msg), blob_len(msg));
288
289 cur = tb[DEV_STATE_NAME];
290 if (!cur)
291 return UBUS_STATUS_INVALID_ARGUMENT;
292
293 dev = device_get(blobmsg_data(cur), false);
294 if (!dev)
295 return UBUS_STATUS_NOT_FOUND;
296
297 cur = tb[DEV_STATE_DEFER];
298 if (cur)
299 device_set_deferred(dev, !!blobmsg_get_u8(cur));
300
301 return 0;
302 }
303
304 static struct ubus_method dev_object_methods[] = {
305 UBUS_METHOD("status", netifd_dev_status, dev_policy),
306 UBUS_METHOD("set_alias", netifd_handle_alias, alias_attrs),
307 UBUS_METHOD("set_state", netifd_handle_set_state, dev_state_policy),
308 };
309
310 static struct ubus_object_type dev_object_type =
311 UBUS_OBJECT_TYPE("device", dev_object_methods);
312
313 static struct ubus_object dev_object = {
314 .name = "network.device",
315 .type = &dev_object_type,
316 .methods = dev_object_methods,
317 .n_methods = ARRAY_SIZE(dev_object_methods),
318 };
319
320 static void
321 netifd_ubus_add_fd(void)
322 {
323 ubus_add_uloop(ctx);
324 system_fd_set_cloexec(ctx->sock.fd);
325 }
326
327 static void
328 netifd_ubus_reconnect_timer(struct uloop_timeout *timeout)
329 {
330 static struct uloop_timeout retry = {
331 .cb = netifd_ubus_reconnect_timer,
332 };
333 int t = 2;
334
335 if (ubus_reconnect(ctx, ubus_path) != 0) {
336 DPRINTF("failed to reconnect, trying again in %d seconds\n", t);
337 uloop_timeout_set(&retry, t * 1000);
338 return;
339 }
340
341 DPRINTF("reconnected to ubus, new id: %08x\n", ctx->local_id);
342 netifd_ubus_add_fd();
343 }
344
345 static void
346 netifd_ubus_connection_lost(struct ubus_context *ctx)
347 {
348 netifd_ubus_reconnect_timer(NULL);
349 }
350
351 /* per-interface object */
352
353 static int
354 netifd_handle_up(struct ubus_context *ctx, struct ubus_object *obj,
355 struct ubus_request_data *req, const char *method,
356 struct blob_attr *msg)
357 {
358 struct interface *iface;
359
360 iface = container_of(obj, struct interface, ubus);
361 interface_set_up(iface);
362
363 return 0;
364 }
365
366 static int
367 netifd_handle_down(struct ubus_context *ctx, struct ubus_object *obj,
368 struct ubus_request_data *req, const char *method,
369 struct blob_attr *msg)
370 {
371 struct interface *iface;
372
373 iface = container_of(obj, struct interface, ubus);
374 interface_set_down(iface);
375
376 return 0;
377 }
378
379 static void
380 netifd_add_interface_errors(struct blob_buf *b, struct interface *iface)
381 {
382 struct interface_error *error;
383 void *e, *e2, *e3;
384 int i;
385
386 e = blobmsg_open_array(b, "errors");
387 list_for_each_entry(error, &iface->errors, list) {
388 e2 = blobmsg_open_table(b, NULL);
389
390 blobmsg_add_string(b, "subsystem", error->subsystem);
391 blobmsg_add_string(b, "code", error->code);
392 if (error->data[0]) {
393 e3 = blobmsg_open_array(b, "data");
394 for (i = 0; error->data[i]; i++)
395 blobmsg_add_string(b, NULL, error->data[i]);
396 blobmsg_close_array(b, e3);
397 }
398
399 blobmsg_close_table(b, e2);
400 }
401 blobmsg_close_array(b, e);
402 }
403
404 static void
405 interface_ip_dump_address_list(struct interface_ip_settings *ip, bool v6,
406 bool enabled)
407 {
408 struct device_addr *addr;
409 char *buf;
410 void *a;
411 int buflen = 128;
412 int af;
413
414 time_t now = system_get_rtime();
415 vlist_for_each_element(&ip->addr, addr, node) {
416 if (addr->enabled != enabled)
417 continue;
418
419 if ((addr->flags & DEVADDR_FAMILY) == DEVADDR_INET4)
420 af = AF_INET;
421 else
422 af = AF_INET6;
423
424 if (af != (v6 ? AF_INET6 : AF_INET))
425 continue;
426
427 a = blobmsg_open_table(&b, NULL);
428
429 buf = blobmsg_alloc_string_buffer(&b, "address", buflen);
430 inet_ntop(af, &addr->addr, buf, buflen);
431 blobmsg_add_string_buffer(&b);
432
433 blobmsg_add_u32(&b, "mask", addr->mask);
434
435 if (addr->preferred_until) {
436 int preferred = addr->preferred_until - now;
437 if (preferred < 0)
438 preferred = 0;
439 blobmsg_add_u32(&b, "preferred", preferred);
440 }
441
442 if (addr->valid_until)
443 blobmsg_add_u32(&b, "valid", addr->valid_until - now);
444
445 blobmsg_close_table(&b, a);
446 }
447 }
448
449 static void
450 interface_ip_dump_route_list(struct interface_ip_settings *ip, bool enabled)
451 {
452 struct device_route *route;
453 int buflen = 128;
454 char *buf;
455 void *r;
456 int af;
457
458 time_t now = system_get_rtime();
459 vlist_for_each_element(&ip->route, route, node) {
460 if (route->enabled != enabled)
461 continue;
462
463 if ((route->flags & DEVADDR_FAMILY) == DEVADDR_INET4)
464 af = AF_INET;
465 else
466 af = AF_INET6;
467
468 r = blobmsg_open_table(&b, NULL);
469
470 buf = blobmsg_alloc_string_buffer(&b, "target", buflen);
471 inet_ntop(af, &route->addr, buf, buflen);
472 blobmsg_add_string_buffer(&b);
473
474 blobmsg_add_u32(&b, "mask", route->mask);
475
476 buf = blobmsg_alloc_string_buffer(&b, "nexthop", buflen);
477 inet_ntop(af, &route->nexthop, buf, buflen);
478 blobmsg_add_string_buffer(&b);
479
480 if (route->flags & DEVROUTE_MTU)
481 blobmsg_add_u32(&b, "mtu", route->mtu);
482
483 if (route->flags & DEVROUTE_METRIC)
484 blobmsg_add_u32(&b, "metric", route->metric);
485
486 if (route->flags & DEVROUTE_TABLE)
487 blobmsg_add_u32(&b, "table", route->table);
488
489 if (route->valid_until)
490 blobmsg_add_u32(&b, "valid", route->valid_until - now);
491
492 buf = blobmsg_alloc_string_buffer(&b, "source", buflen);
493 inet_ntop(af, &route->source, buf, buflen);
494 snprintf(buf + strlen(buf), 4, "/%u", route->sourcemask);
495 blobmsg_add_string_buffer(&b);
496
497 blobmsg_close_table(&b, r);
498 }
499 }
500
501
502 static void
503 interface_ip_dump_prefix_list(struct interface_ip_settings *ip)
504 {
505 struct device_prefix *prefix;
506 char *buf;
507 void *a, *c;
508 const int buflen = INET6_ADDRSTRLEN;
509
510 time_t now = system_get_rtime();
511 vlist_for_each_element(&ip->prefix, prefix, node) {
512 a = blobmsg_open_table(&b, NULL);
513
514 buf = blobmsg_alloc_string_buffer(&b, "address", buflen);
515 inet_ntop(AF_INET6, &prefix->addr, buf, buflen);
516 blobmsg_add_string_buffer(&b);
517
518 blobmsg_add_u32(&b, "mask", prefix->length);
519
520 if (prefix->preferred_until) {
521 int preferred = prefix->preferred_until - now;
522 if (preferred < 0)
523 preferred = 0;
524 blobmsg_add_u32(&b, "preferred", preferred);
525 }
526
527 if (prefix->valid_until)
528 blobmsg_add_u32(&b, "valid", prefix->valid_until - now);
529
530 blobmsg_add_string(&b, "class", prefix->pclass);
531
532 c = blobmsg_open_table(&b, "assigned");
533 struct device_prefix_assignment *assign;
534 list_for_each_entry(assign, &prefix->assignments, head) {
535 if (!assign->name[0])
536 continue;
537
538 struct in6_addr addr = prefix->addr;
539 addr.s6_addr32[1] |= htonl(assign->assigned);
540
541 void *d = blobmsg_open_table(&b, assign->name);
542
543 buf = blobmsg_alloc_string_buffer(&b, "address", buflen);
544 inet_ntop(AF_INET6, &addr, buf, buflen);
545 blobmsg_add_string_buffer(&b);
546
547 blobmsg_add_u32(&b, "mask", assign->length);
548
549 blobmsg_close_table(&b, d);
550 }
551 blobmsg_close_table(&b, c);
552
553 blobmsg_close_table(&b, a);
554 }
555 }
556
557
558 static void
559 interface_ip_dump_prefix_assignment_list(struct interface *iface)
560 {
561 void *a;
562 char *buf;
563 const int buflen = INET6_ADDRSTRLEN;
564 time_t now = system_get_rtime();
565
566 struct device_prefix *prefix;
567 list_for_each_entry(prefix, &prefixes, head) {
568 struct device_prefix_assignment *assign;
569 list_for_each_entry(assign, &prefix->assignments, head) {
570 if (strcmp(assign->name, iface->name))
571 continue;
572
573 struct in6_addr addr = prefix->addr;
574 addr.s6_addr32[1] |= htonl(assign->assigned);
575
576 a = blobmsg_open_table(&b, NULL);
577
578 buf = blobmsg_alloc_string_buffer(&b, "address", buflen);
579 inet_ntop(AF_INET6, &addr, buf, buflen);
580 blobmsg_add_string_buffer(&b);
581
582 blobmsg_add_u32(&b, "mask", assign->length);
583
584 if (prefix->preferred_until) {
585 int preferred = prefix->preferred_until - now;
586 if (preferred < 0)
587 preferred = 0;
588 blobmsg_add_u32(&b, "preferred", preferred);
589 }
590
591 if (prefix->valid_until)
592 blobmsg_add_u32(&b, "valid", prefix->valid_until - now);
593
594 blobmsg_close_table(&b, a);
595 }
596 }
597 }
598
599
600 static void
601 interface_ip_dump_dns_server_list(struct interface_ip_settings *ip,
602 bool enabled)
603 {
604 struct dns_server *dns;
605 int buflen = 128;
606 char *buf;
607
608 vlist_simple_for_each_element(&ip->dns_servers, dns, node) {
609 if (ip->no_dns == enabled)
610 continue;
611
612 buf = blobmsg_alloc_string_buffer(&b, NULL, buflen);
613 inet_ntop(dns->af, &dns->addr, buf, buflen);
614 blobmsg_add_string_buffer(&b);
615 }
616 }
617
618 static void
619 interface_ip_dump_dns_search_list(struct interface_ip_settings *ip,
620 bool enabled)
621 {
622 struct dns_search_domain *dns;
623
624 vlist_simple_for_each_element(&ip->dns_search, dns, node) {
625 if (ip->no_dns == enabled)
626 continue;
627
628 blobmsg_add_string(&b, NULL, dns->name);
629 }
630 }
631
632 static void
633 netifd_dump_status(struct interface *iface)
634 {
635 struct interface_data *data;
636 struct device *dev;
637 void *a, *inactive;
638
639 blobmsg_add_u8(&b, "up", iface->state == IFS_UP);
640 blobmsg_add_u8(&b, "pending", iface->state == IFS_SETUP);
641 blobmsg_add_u8(&b, "available", iface->available);
642 blobmsg_add_u8(&b, "autostart", iface->autostart);
643
644 if (iface->state == IFS_UP) {
645 time_t cur = system_get_rtime();
646 blobmsg_add_u32(&b, "uptime", cur - iface->start_time);
647 blobmsg_add_string(&b, "l3_device", iface->l3_dev.dev->ifname);
648 }
649
650 if (iface->proto_handler)
651 blobmsg_add_string(&b, "proto", iface->proto_handler->name);
652
653 dev = iface->main_dev.dev;
654 if (dev && !dev->hidden &&
655 !(iface->proto_handler->flags & PROTO_FLAG_NODEV))
656 blobmsg_add_string(&b, "device", dev->ifname);
657
658 if (iface->state == IFS_UP) {
659 blobmsg_add_u32(&b, "metric", iface->metric);
660 a = blobmsg_open_array(&b, "ipv4-address");
661 interface_ip_dump_address_list(&iface->config_ip, false, true);
662 interface_ip_dump_address_list(&iface->proto_ip, false, true);
663 blobmsg_close_array(&b, a);
664 a = blobmsg_open_array(&b, "ipv6-address");
665 interface_ip_dump_address_list(&iface->config_ip, true, true);
666 interface_ip_dump_address_list(&iface->proto_ip, true, true);
667 blobmsg_close_array(&b, a);
668 a = blobmsg_open_array(&b, "ipv6-prefix");
669 interface_ip_dump_prefix_list(&iface->config_ip);
670 interface_ip_dump_prefix_list(&iface->proto_ip);
671 blobmsg_close_array(&b, a);
672 a = blobmsg_open_array(&b, "ipv6-prefix-assignment");
673 interface_ip_dump_prefix_assignment_list(iface);
674 blobmsg_close_array(&b, a);
675 a = blobmsg_open_array(&b, "route");
676 interface_ip_dump_route_list(&iface->config_ip, true);
677 interface_ip_dump_route_list(&iface->proto_ip, true);
678 blobmsg_close_array(&b, a);
679 a = blobmsg_open_array(&b, "dns-server");
680 interface_ip_dump_dns_server_list(&iface->config_ip, true);
681 interface_ip_dump_dns_server_list(&iface->proto_ip, true);
682 blobmsg_close_array(&b, a);
683 a = blobmsg_open_array(&b, "dns-search");
684 interface_ip_dump_dns_search_list(&iface->config_ip, true);
685 interface_ip_dump_dns_search_list(&iface->proto_ip, true);
686 blobmsg_close_array(&b, a);
687
688 inactive = blobmsg_open_table(&b, "inactive");
689 a = blobmsg_open_array(&b, "ipv4-address");
690 interface_ip_dump_address_list(&iface->config_ip, false, false);
691 interface_ip_dump_address_list(&iface->proto_ip, false, false);
692 blobmsg_close_array(&b, a);
693 a = blobmsg_open_array(&b, "ipv6-address");
694 interface_ip_dump_address_list(&iface->config_ip, true, false);
695 interface_ip_dump_address_list(&iface->proto_ip, true, false);
696 blobmsg_close_array(&b, a);
697 a = blobmsg_open_array(&b, "route");
698 interface_ip_dump_route_list(&iface->config_ip, false);
699 interface_ip_dump_route_list(&iface->proto_ip, false);
700 blobmsg_close_array(&b, a);
701 a = blobmsg_open_array(&b, "dns-server");
702 interface_ip_dump_dns_server_list(&iface->config_ip, false);
703 interface_ip_dump_dns_server_list(&iface->proto_ip, false);
704 blobmsg_close_array(&b, a);
705 a = blobmsg_open_array(&b, "dns-search");
706 interface_ip_dump_dns_search_list(&iface->config_ip, false);
707 interface_ip_dump_dns_search_list(&iface->proto_ip, false);
708 blobmsg_close_array(&b, a);
709 blobmsg_close_table(&b, inactive);
710 }
711
712 a = blobmsg_open_table(&b, "data");
713 avl_for_each_element(&iface->data, data, node)
714 blob_put(&b, blob_id(data->data), blob_data(data->data), blob_len(data->data));
715
716 blobmsg_close_table(&b, a);
717
718 if (!list_is_empty(&iface->errors))
719 netifd_add_interface_errors(&b, iface);
720 }
721
722 static int
723 netifd_handle_status(struct ubus_context *ctx, struct ubus_object *obj,
724 struct ubus_request_data *req, const char *method,
725 struct blob_attr *msg)
726 {
727 struct interface *iface = container_of(obj, struct interface, ubus);
728
729 blob_buf_init(&b, 0);
730 netifd_dump_status(iface);
731 ubus_send_reply(ctx, req, b.head);
732
733 return 0;
734 }
735
736
737 static int
738 netifd_handle_dump(struct ubus_context *ctx, struct ubus_object *obj,
739 struct ubus_request_data *req, const char *method,
740 struct blob_attr *msg)
741 {
742 blob_buf_init(&b, 0);
743 void *a = blobmsg_open_array(&b, "interface");
744
745 struct interface *iface;
746 vlist_for_each_element(&interfaces, iface, node) {
747 void *i = blobmsg_open_table(&b, NULL);
748 blobmsg_add_string(&b, "interface", iface->name);
749 netifd_dump_status(iface);
750 blobmsg_close_table(&b, i);
751 }
752
753 blobmsg_close_array(&b, a);
754 ubus_send_reply(ctx, req, b.head);
755
756 return 0;
757 }
758
759 static int
760 netifd_iface_handle_device(struct ubus_context *ctx, struct ubus_object *obj,
761 struct ubus_request_data *req, const char *method,
762 struct blob_attr *msg)
763 {
764 struct blob_attr *tb[__DEV_MAX];
765 struct interface *iface;
766 struct device *dev;
767 bool add = !strncmp(method, "add", 3);
768 int ret;
769
770 iface = container_of(obj, struct interface, ubus);
771
772 blobmsg_parse(dev_policy, __DEV_MAX, tb, blob_data(msg), blob_len(msg));
773
774 if (!tb[DEV_NAME])
775 return UBUS_STATUS_INVALID_ARGUMENT;
776
777 device_lock();
778
779 dev = device_get(blobmsg_data(tb[DEV_NAME]), add ? 2 : 0);
780 if (!dev) {
781 ret = UBUS_STATUS_NOT_FOUND;
782 goto out;
783 }
784
785 if (add) {
786 device_set_present(dev, true);
787 if (iface->device_config)
788 device_set_config(dev, &simple_device_type, iface->config);
789
790 system_if_apply_settings(dev, &dev->settings);
791 ret = interface_add_link(iface, dev);
792 } else {
793 ret = interface_remove_link(iface, dev);
794 }
795
796 out:
797 device_unlock();
798
799 return ret;
800 }
801
802
803 static int
804 netifd_iface_notify_proto(struct ubus_context *ctx, struct ubus_object *obj,
805 struct ubus_request_data *req, const char *method,
806 struct blob_attr *msg)
807 {
808 struct interface *iface;
809
810 iface = container_of(obj, struct interface, ubus);
811
812 if (!iface->proto || !iface->proto->notify)
813 return UBUS_STATUS_NOT_SUPPORTED;
814
815 return iface->proto->notify(iface->proto, msg);
816 }
817
818 static void
819 netifd_iface_do_remove(struct uloop_timeout *timeout)
820 {
821 struct interface *iface;
822
823 iface = container_of(timeout, struct interface, remove_timer);
824 vlist_delete(&interfaces, &iface->node);
825 }
826
827 static int
828 netifd_iface_remove(struct ubus_context *ctx, struct ubus_object *obj,
829 struct ubus_request_data *req, const char *method,
830 struct blob_attr *msg)
831 {
832 struct interface *iface;
833
834 iface = container_of(obj, struct interface, ubus);
835 if (iface->remove_timer.cb)
836 return UBUS_STATUS_INVALID_ARGUMENT;
837
838 iface->remove_timer.cb = netifd_iface_do_remove;
839 uloop_timeout_set(&iface->remove_timer, 100);
840 return 0;
841 }
842
843 static int
844 netifd_handle_iface_prepare(struct ubus_context *ctx, struct ubus_object *obj,
845 struct ubus_request_data *req, const char *method,
846 struct blob_attr *msg)
847 {
848 struct interface *iface;
849 struct device *dev;
850 const struct device_hotplug_ops *ops;
851
852 iface = container_of(obj, struct interface, ubus);
853 dev = iface->main_dev.dev;
854 if (!dev)
855 return 0;
856
857 ops = dev->hotplug_ops;
858 if (!ops)
859 return 0;
860
861 return ops->prepare(dev);
862 }
863
864 static int
865 netifd_handle_set_data(struct ubus_context *ctx, struct ubus_object *obj,
866 struct ubus_request_data *req, const char *method,
867 struct blob_attr *msg)
868 {
869 struct interface *iface;
870 struct blob_attr *cur;
871 int rem, ret;
872
873 iface = container_of(obj, struct interface, ubus);
874
875 blob_for_each_attr(cur, msg, rem) {
876 ret = interface_add_data(iface, cur);
877 if (ret)
878 return ret;
879 }
880
881 return 0;
882 }
883
884 static struct ubus_method iface_object_methods[] = {
885 { .name = "up", .handler = netifd_handle_up },
886 { .name = "down", .handler = netifd_handle_down },
887 { .name = "status", .handler = netifd_handle_status },
888 { .name = "prepare", .handler = netifd_handle_iface_prepare },
889 { .name = "dump", .handler = netifd_handle_dump },
890 UBUS_METHOD("add_device", netifd_iface_handle_device, dev_policy ),
891 UBUS_METHOD("remove_device", netifd_iface_handle_device, dev_policy ),
892 { .name = "notify_proto", .handler = netifd_iface_notify_proto },
893 { .name = "remove", .handler = netifd_iface_remove },
894 { .name = "set_data", .handler = netifd_handle_set_data },
895 };
896
897 static struct ubus_object_type iface_object_type =
898 UBUS_OBJECT_TYPE("netifd_iface", iface_object_methods);
899
900
901 static struct ubus_object iface_object = {
902 .name = "network.interface",
903 .type = &iface_object_type,
904 .n_methods = ARRAY_SIZE(iface_object_methods),
905 };
906
907 static void netifd_add_object(struct ubus_object *obj)
908 {
909 int ret = ubus_add_object(ctx, obj);
910
911 if (ret != 0)
912 fprintf(stderr, "Failed to publish object '%s': %s\n", obj->name, ubus_strerror(ret));
913 }
914
915 static const struct blobmsg_policy iface_policy = {
916 .name = "interface",
917 .type = BLOBMSG_TYPE_STRING,
918 };
919
920 static int
921 netifd_handle_iface(struct ubus_context *ctx, struct ubus_object *obj,
922 struct ubus_request_data *req, const char *method,
923 struct blob_attr *msg)
924 {
925 struct interface *iface;
926 struct blob_attr *tb;
927 int i;
928
929 blobmsg_parse(&iface_policy, 1, &tb, blob_data(msg), blob_len(msg));
930 if (!tb)
931 return UBUS_STATUS_INVALID_ARGUMENT;
932
933 iface = vlist_find(&interfaces, blobmsg_data(tb), iface, node);
934 if (!iface)
935 return UBUS_STATUS_NOT_FOUND;
936
937 for (i = 0; i < ARRAY_SIZE(iface_object_methods); i++) {
938 ubus_handler_t cb;
939
940 if (strcmp(method, iface_object_methods[i].name) != 0)
941 continue;
942
943 cb = iface_object_methods[i].handler;
944 return cb(ctx, &iface->ubus, req, method, msg);
945 }
946
947 return UBUS_STATUS_INVALID_ARGUMENT;
948 }
949
950 static void netifd_add_iface_object(void)
951 {
952 struct ubus_method *methods;
953 int i;
954
955 methods = calloc(1, sizeof(iface_object_methods));
956 memcpy(methods, iface_object_methods, sizeof(iface_object_methods));
957 iface_object.methods = methods;
958
959 for (i = 0; i < ARRAY_SIZE(iface_object_methods); i++) {
960 if (methods[i].handler == netifd_handle_dump)
961 continue;
962
963 methods[i].handler = netifd_handle_iface;
964 methods[i].policy = &iface_policy;
965 methods[i].n_policy = 1;
966 }
967 netifd_add_object(&iface_object);
968 }
969
970 int
971 netifd_ubus_init(const char *path)
972 {
973 uloop_init();
974 ubus_path = path;
975
976 ctx = ubus_connect(path);
977 if (!ctx)
978 return -EIO;
979
980 DPRINTF("connected as %08x\n", ctx->local_id);
981 ctx->connection_lost = netifd_ubus_connection_lost;
982 netifd_ubus_add_fd();
983
984 netifd_add_object(&main_object);
985 netifd_add_object(&dev_object);
986 netifd_add_iface_object();
987
988 return 0;
989 }
990
991 void
992 netifd_ubus_done(void)
993 {
994 ubus_free(ctx);
995 }
996
997 void
998 netifd_ubus_interface_event(struct interface *iface, bool up)
999 {
1000 blob_buf_init(&b, 0);
1001 blobmsg_add_string(&b, "action", up ? "ifup" : "ifdown");
1002 blobmsg_add_string(&b, "interface", iface->name);
1003 ubus_send_event(ctx, "network.interface", b.head);
1004 }
1005
1006 void
1007 netifd_ubus_interface_notify(struct interface *iface, bool up)
1008 {
1009 const char *event = (up) ? "update" : "down";
1010 blob_buf_init(&b, 0);
1011 blobmsg_add_string(&b, "interface", iface->name);
1012 netifd_dump_status(iface);
1013 ubus_notify(ctx, &iface_object, event, b.head, -1);
1014 ubus_notify(ctx, &iface->ubus, event, b.head, -1);
1015 }
1016
1017 void
1018 netifd_ubus_add_interface(struct interface *iface)
1019 {
1020 struct ubus_object *obj = &iface->ubus;
1021 char *name = NULL;
1022
1023 if (asprintf(&name, "%s.interface.%s", main_object.name, iface->name) == -1)
1024 return;
1025
1026 obj->name = name;
1027 obj->type = &iface_object_type;
1028 obj->methods = iface_object_methods;
1029 obj->n_methods = ARRAY_SIZE(iface_object_methods);
1030 if (ubus_add_object(ctx, &iface->ubus)) {
1031 DPRINTF("failed to publish ubus object for interface '%s'\n", iface->name);
1032 free(name);
1033 obj->name = NULL;
1034 }
1035 }
1036
1037 void
1038 netifd_ubus_remove_interface(struct interface *iface)
1039 {
1040 if (!iface->ubus.name)
1041 return;
1042
1043 ubus_remove_object(ctx, &iface->ubus);
1044 free((void *) iface->ubus.name);
1045 }
OpenWrt Network interface configuration daemon