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interface-ip: Fix broadcast address when using /31 or /32 IPv4 addressing
[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 #include "wireless.h"
26
27 struct ubus_context *ubus_ctx = NULL;
28 static struct blob_buf b;
29 static const char *ubus_path;
30
31 /* global object */
32
33 static int
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)
37 {
38 netifd_restart();
39 return 0;
40 }
41
42 static int
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)
46 {
47 netifd_reload();
48 return 0;
49 }
50
51 enum {
52 HR_TARGET,
53 HR_V6,
54 HR_INTERFACE,
55 __HR_MAX
56 };
57
58 static const struct blobmsg_policy route_policy[__HR_MAX] = {
59 [HR_TARGET] = { .name = "target", .type = BLOBMSG_TYPE_STRING },
60 [HR_V6] = { .name = "v6", .type = BLOBMSG_TYPE_BOOL },
61 [HR_INTERFACE] = { .name = "interface", .type = BLOBMSG_TYPE_STRING },
62 };
63
64 static int
65 netifd_add_host_route(struct ubus_context *ctx, struct ubus_object *obj,
66 struct ubus_request_data *req, const char *method,
67 struct blob_attr *msg)
68 {
69 struct blob_attr *tb[__HR_MAX];
70 struct interface *iface = NULL;
71 union if_addr a;
72 bool v6 = false;
73
74 blobmsg_parse(route_policy, __HR_MAX, tb, blob_data(msg), blob_len(msg));
75 if (!tb[HR_TARGET])
76 return UBUS_STATUS_INVALID_ARGUMENT;
77
78 if (tb[HR_V6])
79 v6 = blobmsg_get_bool(tb[HR_V6]);
80
81 if (tb[HR_INTERFACE])
82 iface = vlist_find(&interfaces, blobmsg_data(tb[HR_INTERFACE]), iface, node);
83
84 memset(&a, 0, sizeof(a));
85 if (!inet_pton(v6 ? AF_INET6 : AF_INET, blobmsg_data(tb[HR_TARGET]), &a))
86 return UBUS_STATUS_INVALID_ARGUMENT;
87
88
89 iface = interface_ip_add_target_route(&a, v6, iface);
90 if (!iface)
91 return UBUS_STATUS_NOT_FOUND;
92
93 blob_buf_init(&b, 0);
94 blobmsg_add_string(&b, "interface", iface->name);
95 ubus_send_reply(ctx, req, b.head);
96
97 return 0;
98 }
99
100 static int
101 netifd_get_proto_handlers(struct ubus_context *ctx, struct ubus_object *obj,
102 struct ubus_request_data *req, const char *method,
103 struct blob_attr *msg)
104 {
105 blob_buf_init(&b, 0);
106 proto_dump_handlers(&b);
107 ubus_send_reply(ctx, req, b.head);
108
109 return 0;
110 }
111
112
113 enum {
114 DI_NAME,
115 __DI_MAX
116 };
117
118 static const struct blobmsg_policy dynamic_policy[__DI_MAX] = {
119 [DI_NAME] = { .name = "name", .type = BLOBMSG_TYPE_STRING },
120 };
121
122 static int
123 netifd_add_dynamic(struct ubus_context *ctx, struct ubus_object *obj,
124 struct ubus_request_data *req, const char *method,
125 struct blob_attr *msg)
126 {
127 struct blob_attr *tb[__DI_MAX];
128 struct interface *iface;
129 struct blob_attr *config;
130 struct device *dev;
131
132 blobmsg_parse(dynamic_policy, __DI_MAX, tb, blob_data(msg), blob_len(msg));
133
134 if (!tb[DI_NAME])
135 return UBUS_STATUS_INVALID_ARGUMENT;
136
137 const char *name = blobmsg_get_string(tb[DI_NAME]);
138
139 iface = interface_alloc(name, msg);
140 if (!iface)
141 return UBUS_STATUS_UNKNOWN_ERROR;
142
143 config = blob_memdup(msg);
144 if (!config)
145 goto error;
146
147 interface_add(iface, config);
148
149 // need to look up the interface name again, in case of config update
150 // the pointer will have changed
151 iface = vlist_find(&interfaces, name, iface, node);
152 if (!iface)
153 return UBUS_STATUS_UNKNOWN_ERROR;
154
155 // Set interface as dynamic
156 interface_set_dynamic(iface);
157
158 dev = iface->main_dev.dev;
159 if (!dev || !dev->default_config)
160 return UBUS_STATUS_UNKNOWN_ERROR;
161
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(ubus_ctx);
324 system_fd_set_cloexec(ubus_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(ubus_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", ubus_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 if (addr->pclass)
446 blobmsg_add_string(&b, "class", addr->pclass);
447
448 blobmsg_close_table(&b, a);
449 }
450 }
451
452 static void
453 interface_ip_dump_route_list(struct interface_ip_settings *ip, bool enabled)
454 {
455 struct device_route *route;
456 int buflen = 128;
457 char *buf;
458 void *r;
459 int af;
460
461 time_t now = system_get_rtime();
462 vlist_for_each_element(&ip->route, route, node) {
463 if (route->enabled != enabled)
464 continue;
465
466 if ((ip->no_defaultroute == enabled) && !route->mask)
467 continue;
468
469 if ((route->flags & DEVADDR_FAMILY) == DEVADDR_INET4)
470 af = AF_INET;
471 else
472 af = AF_INET6;
473
474 r = blobmsg_open_table(&b, NULL);
475
476 buf = blobmsg_alloc_string_buffer(&b, "target", buflen);
477 inet_ntop(af, &route->addr, buf, buflen);
478 blobmsg_add_string_buffer(&b);
479
480 blobmsg_add_u32(&b, "mask", route->mask);
481
482 buf = blobmsg_alloc_string_buffer(&b, "nexthop", buflen);
483 inet_ntop(af, &route->nexthop, buf, buflen);
484 blobmsg_add_string_buffer(&b);
485
486 if (route->flags & DEVROUTE_TYPE)
487 blobmsg_add_u32(&b, "type", route->type);
488
489 if (route->flags & DEVROUTE_MTU)
490 blobmsg_add_u32(&b, "mtu", route->mtu);
491
492 if (route->flags & DEVROUTE_METRIC)
493 blobmsg_add_u32(&b, "metric", route->metric);
494
495 if (route->flags & DEVROUTE_TABLE)
496 blobmsg_add_u32(&b, "table", route->table);
497
498 if (route->valid_until)
499 blobmsg_add_u32(&b, "valid", route->valid_until - now);
500
501 buf = blobmsg_alloc_string_buffer(&b, "source", buflen);
502 inet_ntop(af, &route->source, buf, buflen);
503 snprintf(buf + strlen(buf), buflen - strlen(buf), "/%u", route->sourcemask);
504 blobmsg_add_string_buffer(&b);
505
506 blobmsg_close_table(&b, r);
507 }
508 }
509
510
511 static void
512 interface_ip_dump_prefix_list(struct interface_ip_settings *ip)
513 {
514 struct device_prefix *prefix;
515 char *buf;
516 void *a, *c;
517 const int buflen = INET6_ADDRSTRLEN;
518
519 time_t now = system_get_rtime();
520 vlist_for_each_element(&ip->prefix, prefix, node) {
521 a = blobmsg_open_table(&b, NULL);
522
523 buf = blobmsg_alloc_string_buffer(&b, "address", buflen);
524 inet_ntop(AF_INET6, &prefix->addr, buf, buflen);
525 blobmsg_add_string_buffer(&b);
526
527 blobmsg_add_u32(&b, "mask", prefix->length);
528
529 if (prefix->preferred_until) {
530 int preferred = prefix->preferred_until - now;
531 if (preferred < 0)
532 preferred = 0;
533 blobmsg_add_u32(&b, "preferred", preferred);
534 }
535
536 if (prefix->valid_until)
537 blobmsg_add_u32(&b, "valid", prefix->valid_until - now);
538
539 blobmsg_add_string(&b, "class", prefix->pclass);
540
541 c = blobmsg_open_table(&b, "assigned");
542 struct device_prefix_assignment *assign;
543 list_for_each_entry(assign, &prefix->assignments, head) {
544 if (!assign->name[0])
545 continue;
546
547 struct in6_addr addr = prefix->addr;
548 addr.s6_addr32[1] |= htonl(assign->assigned);
549
550 void *d = blobmsg_open_table(&b, assign->name);
551
552 buf = blobmsg_alloc_string_buffer(&b, "address", buflen);
553 inet_ntop(AF_INET6, &addr, buf, buflen);
554 blobmsg_add_string_buffer(&b);
555
556 blobmsg_add_u32(&b, "mask", assign->length);
557
558 blobmsg_close_table(&b, d);
559 }
560 blobmsg_close_table(&b, c);
561
562 blobmsg_close_table(&b, a);
563 }
564 }
565
566
567 static void
568 interface_ip_dump_prefix_assignment_list(struct interface *iface)
569 {
570 void *a;
571 char *buf;
572 const int buflen = INET6_ADDRSTRLEN;
573 time_t now = system_get_rtime();
574
575 struct device_prefix *prefix;
576 list_for_each_entry(prefix, &prefixes, head) {
577 struct device_prefix_assignment *assign;
578 list_for_each_entry(assign, &prefix->assignments, head) {
579 if (strcmp(assign->name, iface->name))
580 continue;
581
582 struct in6_addr addr = prefix->addr;
583 addr.s6_addr32[1] |= htonl(assign->assigned);
584
585 a = blobmsg_open_table(&b, NULL);
586
587 buf = blobmsg_alloc_string_buffer(&b, "address", buflen);
588 inet_ntop(AF_INET6, &addr, buf, buflen);
589 blobmsg_add_string_buffer(&b);
590
591 blobmsg_add_u32(&b, "mask", assign->length);
592
593 if (prefix->preferred_until) {
594 int preferred = prefix->preferred_until - now;
595 if (preferred < 0)
596 preferred = 0;
597 blobmsg_add_u32(&b, "preferred", preferred);
598 }
599
600 if (prefix->valid_until)
601 blobmsg_add_u32(&b, "valid", prefix->valid_until - now);
602
603 blobmsg_close_table(&b, a);
604 }
605 }
606 }
607
608
609 static void
610 interface_ip_dump_dns_server_list(struct interface_ip_settings *ip,
611 bool enabled)
612 {
613 struct dns_server *dns;
614 int buflen = 128;
615 char *buf;
616
617 vlist_simple_for_each_element(&ip->dns_servers, dns, node) {
618 if (ip->no_dns == enabled)
619 continue;
620
621 buf = blobmsg_alloc_string_buffer(&b, NULL, buflen);
622 inet_ntop(dns->af, &dns->addr, buf, buflen);
623 blobmsg_add_string_buffer(&b);
624 }
625 }
626
627 static void
628 interface_ip_dump_dns_search_list(struct interface_ip_settings *ip,
629 bool enabled)
630 {
631 struct dns_search_domain *dns;
632
633 vlist_simple_for_each_element(&ip->dns_search, dns, node) {
634 if (ip->no_dns == enabled)
635 continue;
636
637 blobmsg_add_string(&b, NULL, dns->name);
638 }
639 }
640
641 static void
642 netifd_dump_status(struct interface *iface)
643 {
644 struct interface_data *data;
645 struct device *dev;
646 void *a, *inactive;
647
648 blobmsg_add_u8(&b, "up", iface->state == IFS_UP);
649 blobmsg_add_u8(&b, "pending", iface->state == IFS_SETUP);
650 blobmsg_add_u8(&b, "available", iface->available);
651 blobmsg_add_u8(&b, "autostart", iface->autostart);
652
653 if (iface->state == IFS_UP) {
654 time_t cur = system_get_rtime();
655 blobmsg_add_u32(&b, "uptime", cur - iface->start_time);
656 if (iface->l3_dev.dev)
657 blobmsg_add_string(&b, "l3_device", iface->l3_dev.dev->ifname);
658 }
659
660 if (iface->proto_handler)
661 blobmsg_add_string(&b, "proto", iface->proto_handler->name);
662
663 dev = iface->main_dev.dev;
664 if (dev && !dev->hidden && iface->proto_handler &&
665 !(iface->proto_handler->flags & PROTO_FLAG_NODEV))
666 blobmsg_add_string(&b, "device", dev->ifname);
667
668 if (iface->state == IFS_UP) {
669 if (iface->updated) {
670 a = blobmsg_open_array(&b, "updated");
671
672 if (iface->updated & IUF_ADDRESS)
673 blobmsg_add_string(&b, NULL, "addresses");
674 if (iface->updated & IUF_ROUTE)
675 blobmsg_add_string(&b, NULL, "routes");
676 if (iface->updated & IUF_PREFIX)
677 blobmsg_add_string(&b, NULL, "prefixes");
678 if (iface->updated & IUF_DATA)
679 blobmsg_add_string(&b, NULL, "data");
680
681 blobmsg_close_array(&b, a);
682 }
683
684 if (iface->ip4table)
685 blobmsg_add_u32(&b, "ip4table", iface->ip4table);
686 if (iface->ip6table)
687 blobmsg_add_u32(&b, "ip6table", iface->ip6table);
688 blobmsg_add_u32(&b, "metric", iface->metric);
689 blobmsg_add_u8(&b, "delegation", !iface->proto_ip.no_delegation);
690 a = blobmsg_open_array(&b, "ipv4-address");
691 interface_ip_dump_address_list(&iface->config_ip, false, true);
692 interface_ip_dump_address_list(&iface->proto_ip, false, true);
693 blobmsg_close_array(&b, a);
694 a = blobmsg_open_array(&b, "ipv6-address");
695 interface_ip_dump_address_list(&iface->config_ip, true, true);
696 interface_ip_dump_address_list(&iface->proto_ip, true, true);
697 blobmsg_close_array(&b, a);
698 a = blobmsg_open_array(&b, "ipv6-prefix");
699 interface_ip_dump_prefix_list(&iface->config_ip);
700 interface_ip_dump_prefix_list(&iface->proto_ip);
701 blobmsg_close_array(&b, a);
702 a = blobmsg_open_array(&b, "ipv6-prefix-assignment");
703 interface_ip_dump_prefix_assignment_list(iface);
704 blobmsg_close_array(&b, a);
705 a = blobmsg_open_array(&b, "route");
706 interface_ip_dump_route_list(&iface->config_ip, true);
707 interface_ip_dump_route_list(&iface->proto_ip, true);
708 blobmsg_close_array(&b, a);
709 a = blobmsg_open_array(&b, "dns-server");
710 interface_ip_dump_dns_server_list(&iface->config_ip, true);
711 interface_ip_dump_dns_server_list(&iface->proto_ip, true);
712 blobmsg_close_array(&b, a);
713 a = blobmsg_open_array(&b, "dns-search");
714 interface_ip_dump_dns_search_list(&iface->config_ip, true);
715 interface_ip_dump_dns_search_list(&iface->proto_ip, true);
716 blobmsg_close_array(&b, a);
717
718 inactive = blobmsg_open_table(&b, "inactive");
719 a = blobmsg_open_array(&b, "ipv4-address");
720 interface_ip_dump_address_list(&iface->config_ip, false, false);
721 interface_ip_dump_address_list(&iface->proto_ip, false, false);
722 blobmsg_close_array(&b, a);
723 a = blobmsg_open_array(&b, "ipv6-address");
724 interface_ip_dump_address_list(&iface->config_ip, true, false);
725 interface_ip_dump_address_list(&iface->proto_ip, true, false);
726 blobmsg_close_array(&b, a);
727 a = blobmsg_open_array(&b, "route");
728 interface_ip_dump_route_list(&iface->config_ip, false);
729 interface_ip_dump_route_list(&iface->proto_ip, false);
730 blobmsg_close_array(&b, a);
731 a = blobmsg_open_array(&b, "dns-server");
732 interface_ip_dump_dns_server_list(&iface->config_ip, false);
733 interface_ip_dump_dns_server_list(&iface->proto_ip, false);
734 blobmsg_close_array(&b, a);
735 a = blobmsg_open_array(&b, "dns-search");
736 interface_ip_dump_dns_search_list(&iface->config_ip, false);
737 interface_ip_dump_dns_search_list(&iface->proto_ip, false);
738 blobmsg_close_array(&b, a);
739 blobmsg_close_table(&b, inactive);
740 }
741
742 a = blobmsg_open_table(&b, "data");
743 avl_for_each_element(&iface->data, data, node)
744 blobmsg_add_blob(&b, data->data);
745
746 blobmsg_close_table(&b, a);
747
748 if (!list_empty(&iface->errors))
749 netifd_add_interface_errors(&b, iface);
750 }
751
752 static int
753 netifd_handle_status(struct ubus_context *ctx, struct ubus_object *obj,
754 struct ubus_request_data *req, const char *method,
755 struct blob_attr *msg)
756 {
757 struct interface *iface = container_of(obj, struct interface, ubus);
758
759 blob_buf_init(&b, 0);
760 netifd_dump_status(iface);
761 ubus_send_reply(ctx, req, b.head);
762
763 return 0;
764 }
765
766
767 static int
768 netifd_handle_dump(struct ubus_context *ctx, struct ubus_object *obj,
769 struct ubus_request_data *req, const char *method,
770 struct blob_attr *msg)
771 {
772 blob_buf_init(&b, 0);
773 void *a = blobmsg_open_array(&b, "interface");
774
775 struct interface *iface;
776 vlist_for_each_element(&interfaces, iface, node) {
777 void *i = blobmsg_open_table(&b, NULL);
778 blobmsg_add_string(&b, "interface", iface->name);
779 netifd_dump_status(iface);
780 blobmsg_close_table(&b, i);
781 }
782
783 blobmsg_close_array(&b, a);
784 ubus_send_reply(ctx, req, b.head);
785
786 return 0;
787 }
788
789 enum {
790 DEV_LINK_NAME,
791 DEV_LINK_EXT,
792 __DEV_LINK_MAX,
793 };
794
795 static const struct blobmsg_policy dev_link_policy[__DEV_LINK_MAX] = {
796 [DEV_LINK_NAME] = { .name = "name", .type = BLOBMSG_TYPE_STRING },
797 [DEV_LINK_EXT] = { .name = "link-ext", .type = BLOBMSG_TYPE_BOOL },
798 };
799
800 static int
801 netifd_iface_handle_device(struct ubus_context *ctx, struct ubus_object *obj,
802 struct ubus_request_data *req, const char *method,
803 struct blob_attr *msg)
804 {
805 struct blob_attr *tb[__DEV_LINK_MAX];
806 struct blob_attr *cur;
807 struct interface *iface;
808 bool add = !strncmp(method, "add", 3);
809 bool link_ext = true;
810
811 iface = container_of(obj, struct interface, ubus);
812
813 blobmsg_parse(dev_link_policy, __DEV_LINK_MAX, tb, blob_data(msg), blob_len(msg));
814
815 if (!tb[DEV_LINK_NAME])
816 return UBUS_STATUS_INVALID_ARGUMENT;
817
818 cur = tb[DEV_LINK_EXT];
819 if (cur)
820 link_ext = blobmsg_get_bool(cur);
821
822 return interface_handle_link(iface, blobmsg_data(tb[DEV_LINK_NAME]), add, link_ext);
823 }
824
825
826 static int
827 netifd_iface_notify_proto(struct ubus_context *ctx, struct ubus_object *obj,
828 struct ubus_request_data *req, const char *method,
829 struct blob_attr *msg)
830 {
831 struct interface *iface;
832
833 iface = container_of(obj, struct interface, ubus);
834
835 if (!iface->proto || !iface->proto->notify)
836 return UBUS_STATUS_NOT_SUPPORTED;
837
838 return iface->proto->notify(iface->proto, msg);
839 }
840
841 static void
842 netifd_iface_do_remove(struct uloop_timeout *timeout)
843 {
844 struct interface *iface;
845
846 iface = container_of(timeout, struct interface, remove_timer);
847 vlist_delete(&interfaces, &iface->node);
848 }
849
850 static int
851 netifd_iface_remove(struct ubus_context *ctx, struct ubus_object *obj,
852 struct ubus_request_data *req, const char *method,
853 struct blob_attr *msg)
854 {
855 struct interface *iface;
856
857 iface = container_of(obj, struct interface, ubus);
858 if (iface->remove_timer.cb)
859 return UBUS_STATUS_INVALID_ARGUMENT;
860
861 iface->remove_timer.cb = netifd_iface_do_remove;
862 uloop_timeout_set(&iface->remove_timer, 100);
863 return 0;
864 }
865
866 static int
867 netifd_handle_iface_prepare(struct ubus_context *ctx, struct ubus_object *obj,
868 struct ubus_request_data *req, const char *method,
869 struct blob_attr *msg)
870 {
871 struct interface *iface;
872 struct device *dev;
873 const struct device_hotplug_ops *ops;
874
875 iface = container_of(obj, struct interface, ubus);
876 dev = iface->main_dev.dev;
877 if (!dev)
878 return 0;
879
880 ops = dev->hotplug_ops;
881 if (!ops)
882 return 0;
883
884 return ops->prepare(dev);
885 }
886
887 static int
888 netifd_handle_set_data(struct ubus_context *ctx, struct ubus_object *obj,
889 struct ubus_request_data *req, const char *method,
890 struct blob_attr *msg)
891 {
892 struct interface *iface;
893 struct blob_attr *cur;
894 int rem, ret;
895
896 iface = container_of(obj, struct interface, ubus);
897
898 blob_for_each_attr(cur, msg, rem) {
899 ret = interface_add_data(iface, cur);
900 if (ret)
901 return ret;
902 }
903
904 return 0;
905 }
906
907 static struct ubus_method iface_object_methods[] = {
908 { .name = "up", .handler = netifd_handle_up },
909 { .name = "down", .handler = netifd_handle_down },
910 { .name = "status", .handler = netifd_handle_status },
911 { .name = "prepare", .handler = netifd_handle_iface_prepare },
912 { .name = "dump", .handler = netifd_handle_dump },
913 UBUS_METHOD("add_device", netifd_iface_handle_device, dev_link_policy ),
914 UBUS_METHOD("remove_device", netifd_iface_handle_device, dev_link_policy ),
915 { .name = "notify_proto", .handler = netifd_iface_notify_proto },
916 { .name = "remove", .handler = netifd_iface_remove },
917 { .name = "set_data", .handler = netifd_handle_set_data },
918 };
919
920 static struct ubus_object_type iface_object_type =
921 UBUS_OBJECT_TYPE("netifd_iface", iface_object_methods);
922
923
924 static struct ubus_object iface_object = {
925 .name = "network.interface",
926 .type = &iface_object_type,
927 .n_methods = ARRAY_SIZE(iface_object_methods),
928 };
929
930 static void netifd_add_object(struct ubus_object *obj)
931 {
932 int ret = ubus_add_object(ubus_ctx, obj);
933
934 if (ret != 0)
935 fprintf(stderr, "Failed to publish object '%s': %s\n", obj->name, ubus_strerror(ret));
936 }
937
938 static const struct blobmsg_policy iface_policy = {
939 .name = "interface",
940 .type = BLOBMSG_TYPE_STRING,
941 };
942
943 static int
944 netifd_handle_iface(struct ubus_context *ctx, struct ubus_object *obj,
945 struct ubus_request_data *req, const char *method,
946 struct blob_attr *msg)
947 {
948 struct interface *iface;
949 struct blob_attr *tb;
950 int i;
951
952 blobmsg_parse(&iface_policy, 1, &tb, blob_data(msg), blob_len(msg));
953 if (!tb)
954 return UBUS_STATUS_INVALID_ARGUMENT;
955
956 iface = vlist_find(&interfaces, blobmsg_data(tb), iface, node);
957 if (!iface)
958 return UBUS_STATUS_NOT_FOUND;
959
960 for (i = 0; i < ARRAY_SIZE(iface_object_methods); i++) {
961 ubus_handler_t cb;
962
963 if (strcmp(method, iface_object_methods[i].name) != 0)
964 continue;
965
966 cb = iface_object_methods[i].handler;
967 return cb(ctx, &iface->ubus, req, method, msg);
968 }
969
970 return UBUS_STATUS_INVALID_ARGUMENT;
971 }
972
973 static void netifd_add_iface_object(void)
974 {
975 struct ubus_method *methods;
976 int i;
977
978 methods = calloc(1, sizeof(iface_object_methods));
979 memcpy(methods, iface_object_methods, sizeof(iface_object_methods));
980 iface_object.methods = methods;
981
982 for (i = 0; i < ARRAY_SIZE(iface_object_methods); i++) {
983 if (methods[i].handler == netifd_handle_dump)
984 continue;
985
986 methods[i].handler = netifd_handle_iface;
987 methods[i].policy = &iface_policy;
988 methods[i].n_policy = 1;
989 }
990 netifd_add_object(&iface_object);
991 }
992
993 static struct wireless_device *
994 get_wdev(struct blob_attr *msg, int *ret)
995 {
996 struct blobmsg_policy wdev_policy = {
997 .name = "device",
998 .type = BLOBMSG_TYPE_STRING,
999 };
1000 struct blob_attr *dev_attr;
1001 struct wireless_device *wdev = NULL;
1002
1003
1004 blobmsg_parse(&wdev_policy, 1, &dev_attr, blob_data(msg), blob_len(msg));
1005 if (!dev_attr) {
1006 *ret = UBUS_STATUS_INVALID_ARGUMENT;
1007 return NULL;
1008 }
1009
1010 wdev = vlist_find(&wireless_devices, blobmsg_data(dev_attr), wdev, node);
1011 if (!wdev) {
1012 *ret = UBUS_STATUS_NOT_FOUND;
1013 return NULL;
1014 }
1015
1016 *ret = 0;
1017 return wdev;
1018 }
1019
1020 static int
1021 netifd_handle_wdev_up(struct ubus_context *ctx, struct ubus_object *obj,
1022 struct ubus_request_data *req, const char *method,
1023 struct blob_attr *msg)
1024 {
1025 struct wireless_device *wdev;
1026 int ret;
1027
1028 wdev = get_wdev(msg, &ret);
1029 if (ret == UBUS_STATUS_NOT_FOUND)
1030 return ret;
1031
1032 if (wdev) {
1033 wireless_device_set_up(wdev);
1034 } else {
1035 vlist_for_each_element(&wireless_devices, wdev, node)
1036 wireless_device_set_up(wdev);
1037 }
1038
1039 return 0;
1040 }
1041
1042 static int
1043 netifd_handle_wdev_down(struct ubus_context *ctx, struct ubus_object *obj,
1044 struct ubus_request_data *req, const char *method,
1045 struct blob_attr *msg)
1046 {
1047 struct wireless_device *wdev;
1048 int ret;
1049
1050 wdev = get_wdev(msg, &ret);
1051 if (ret == UBUS_STATUS_NOT_FOUND)
1052 return ret;
1053
1054 if (wdev) {
1055 wireless_device_set_down(wdev);
1056 } else {
1057 vlist_for_each_element(&wireless_devices, wdev, node)
1058 wireless_device_set_down(wdev);
1059 }
1060
1061 return 0;
1062 }
1063
1064 static int
1065 netifd_handle_wdev_status(struct ubus_context *ctx, struct ubus_object *obj,
1066 struct ubus_request_data *req, const char *method,
1067 struct blob_attr *msg)
1068 {
1069 struct wireless_device *wdev;
1070 int ret;
1071
1072 wdev = get_wdev(msg, &ret);
1073 if (ret == UBUS_STATUS_NOT_FOUND)
1074 return ret;
1075
1076 blob_buf_init(&b, 0);
1077 if (wdev) {
1078 wireless_device_status(wdev, &b);
1079 } else {
1080 vlist_for_each_element(&wireless_devices, wdev, node)
1081 wireless_device_status(wdev, &b);
1082 }
1083 ubus_send_reply(ctx, req, b.head);
1084 return 0;
1085 }
1086
1087 static int
1088 netifd_handle_wdev_get_validate(struct ubus_context *ctx, struct ubus_object *obj,
1089 struct ubus_request_data *req, const char *method,
1090 struct blob_attr *msg)
1091 {
1092 struct wireless_device *wdev;
1093 int ret;
1094
1095 wdev = get_wdev(msg, &ret);
1096 if (ret == UBUS_STATUS_NOT_FOUND)
1097 return ret;
1098
1099 blob_buf_init(&b, 0);
1100 if (wdev) {
1101 wireless_device_get_validate(wdev, &b);
1102 } else {
1103 vlist_for_each_element(&wireless_devices, wdev, node)
1104 wireless_device_get_validate(wdev, &b);
1105 }
1106 ubus_send_reply(ctx, req, b.head);
1107 return 0;
1108 }
1109
1110 static int
1111 netifd_handle_wdev_notify(struct ubus_context *ctx, struct ubus_object *obj,
1112 struct ubus_request_data *req, const char *method,
1113 struct blob_attr *msg)
1114 {
1115 struct wireless_device *wdev;
1116 int ret;
1117
1118 wdev = get_wdev(msg, &ret);
1119 if (!wdev)
1120 return ret;
1121
1122 return wireless_device_notify(wdev, msg, req);
1123 }
1124
1125 static struct ubus_method wireless_object_methods[] = {
1126 { .name = "up", .handler = netifd_handle_wdev_up },
1127 { .name = "down", .handler = netifd_handle_wdev_down },
1128 { .name = "status", .handler = netifd_handle_wdev_status },
1129 { .name = "notify", .handler = netifd_handle_wdev_notify },
1130 { .name = "get_validate", .handler = netifd_handle_wdev_get_validate },
1131 };
1132
1133 static struct ubus_object_type wireless_object_type =
1134 UBUS_OBJECT_TYPE("netifd_iface", wireless_object_methods);
1135
1136
1137 static struct ubus_object wireless_object = {
1138 .name = "network.wireless",
1139 .type = &wireless_object_type,
1140 .methods = wireless_object_methods,
1141 .n_methods = ARRAY_SIZE(wireless_object_methods),
1142 };
1143
1144 int
1145 netifd_ubus_init(const char *path)
1146 {
1147 uloop_init();
1148 ubus_path = path;
1149
1150 ubus_ctx = ubus_connect(path);
1151 if (!ubus_ctx)
1152 return -EIO;
1153
1154 DPRINTF("connected as %08x\n", ubus_ctx->local_id);
1155 ubus_ctx->connection_lost = netifd_ubus_connection_lost;
1156 netifd_ubus_add_fd();
1157
1158 netifd_add_object(&main_object);
1159 netifd_add_object(&dev_object);
1160 netifd_add_object(&wireless_object);
1161 netifd_add_iface_object();
1162
1163 return 0;
1164 }
1165
1166 void
1167 netifd_ubus_done(void)
1168 {
1169 ubus_free(ubus_ctx);
1170 }
1171
1172 void
1173 netifd_ubus_interface_event(struct interface *iface, bool up)
1174 {
1175 blob_buf_init(&b, 0);
1176 blobmsg_add_string(&b, "action", up ? "ifup" : "ifdown");
1177 blobmsg_add_string(&b, "interface", iface->name);
1178 ubus_send_event(ubus_ctx, "network.interface", b.head);
1179 }
1180
1181 void
1182 netifd_ubus_interface_notify(struct interface *iface, bool up)
1183 {
1184 const char *event = (up) ? "interface.update" : "interface.down";
1185 blob_buf_init(&b, 0);
1186 blobmsg_add_string(&b, "interface", iface->name);
1187 netifd_dump_status(iface);
1188 ubus_notify(ubus_ctx, &iface_object, event, b.head, -1);
1189 ubus_notify(ubus_ctx, &iface->ubus, event, b.head, -1);
1190 }
1191
1192 void
1193 netifd_ubus_add_interface(struct interface *iface)
1194 {
1195 struct ubus_object *obj = &iface->ubus;
1196 char *name = NULL;
1197
1198 if (asprintf(&name, "%s.interface.%s", main_object.name, iface->name) == -1)
1199 return;
1200
1201 obj->name = name;
1202 obj->type = &iface_object_type;
1203 obj->methods = iface_object_methods;
1204 obj->n_methods = ARRAY_SIZE(iface_object_methods);
1205 if (ubus_add_object(ubus_ctx, &iface->ubus)) {
1206 DPRINTF("failed to publish ubus object for interface '%s'\n", iface->name);
1207 free(name);
1208 obj->name = NULL;
1209 }
1210 }
1211
1212 void
1213 netifd_ubus_remove_interface(struct interface *iface)
1214 {
1215 if (!iface->ubus.name)
1216 return;
1217
1218 ubus_remove_object(ubus_ctx, &iface->ubus);
1219 free((void *) iface->ubus.name);
1220 }
OpenWrt Network interface configuration daemon