projects / project / netifd.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
history | raw | HEAD
IPv6: add class support to regular IPv6 addresses
[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 = interface_alloc(name, msg);
139 if (!iface)
140 return UBUS_STATUS_UNKNOWN_ERROR;
141
142 interface_set_dynamic(iface);
143 iface->device_config = true;
144
145 config = blob_memdup(msg);
146 if (!config)
147 goto error;
148
149 interface_add(iface, config);
150
151 // need to look up the interface name again, in case of config update,
152 iface = vlist_find(&interfaces, name, iface, node);
153 if (!iface)
154 return UBUS_STATUS_UNKNOWN_ERROR;
155
156 dev = iface->main_dev.dev;
157 if (!dev || !dev->default_config)
158 return UBUS_STATUS_UNKNOWN_ERROR;
159
160 device_set_config(dev, dev->type, msg);
161 return UBUS_STATUS_OK;
162
163 error:
164 free(iface);
165 return UBUS_STATUS_UNKNOWN_ERROR;
166 }
167
168 static struct ubus_method main_object_methods[] = {
169 { .name = "restart", .handler = netifd_handle_restart },
170 { .name = "reload", .handler = netifd_handle_reload },
171 UBUS_METHOD("add_host_route", netifd_add_host_route, route_policy),
172 { .name = "get_proto_handlers", .handler = netifd_get_proto_handlers },
173 UBUS_METHOD("add_dynamic", netifd_add_dynamic, dynamic_policy),
174 };
175
176 static struct ubus_object_type main_object_type =
177 UBUS_OBJECT_TYPE("netifd", main_object_methods);
178
179 static struct ubus_object main_object = {
180 .name = "network",
181 .type = &main_object_type,
182 .methods = main_object_methods,
183 .n_methods = ARRAY_SIZE(main_object_methods),
184 };
185
186 enum {
187 DEV_NAME,
188 __DEV_MAX,
189 };
190
191 static const struct blobmsg_policy dev_policy[__DEV_MAX] = {
192 [DEV_NAME] = { .name = "name", .type = BLOBMSG_TYPE_STRING },
193 };
194
195 static int
196 netifd_dev_status(struct ubus_context *ctx, struct ubus_object *obj,
197 struct ubus_request_data *req, const char *method,
198 struct blob_attr *msg)
199 {
200 struct device *dev = NULL;
201 struct blob_attr *tb[__DEV_MAX];
202
203 blobmsg_parse(dev_policy, __DEV_MAX, tb, blob_data(msg), blob_len(msg));
204
205 if (tb[DEV_NAME]) {
206 dev = device_get(blobmsg_data(tb[DEV_NAME]), false);
207 if (!dev)
208 return UBUS_STATUS_INVALID_ARGUMENT;
209 }
210
211 blob_buf_init(&b, 0);
212 device_dump_status(&b, dev);
213 ubus_send_reply(ctx, req, b.head);
214
215 return 0;
216 }
217
218 enum {
219 ALIAS_ATTR_ALIAS,
220 ALIAS_ATTR_DEV,
221 __ALIAS_ATTR_MAX,
222 };
223
224 static const struct blobmsg_policy alias_attrs[__ALIAS_ATTR_MAX] = {
225 [ALIAS_ATTR_ALIAS] = { "alias", BLOBMSG_TYPE_ARRAY },
226 [ALIAS_ATTR_DEV] = { "device", BLOBMSG_TYPE_STRING },
227 };
228
229 static int
230 netifd_handle_alias(struct ubus_context *ctx, struct ubus_object *obj,
231 struct ubus_request_data *req, const char *method,
232 struct blob_attr *msg)
233 {
234 struct device *dev = NULL;
235 struct blob_attr *tb[__ALIAS_ATTR_MAX];
236 struct blob_attr *cur;
237 int rem;
238
239 blobmsg_parse(alias_attrs, __ALIAS_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
240
241 if (!tb[ALIAS_ATTR_ALIAS])
242 return UBUS_STATUS_INVALID_ARGUMENT;
243
244 if ((cur = tb[ALIAS_ATTR_DEV]) != NULL) {
245 dev = device_get(blobmsg_data(cur), true);
246 if (!dev)
247 return UBUS_STATUS_NOT_FOUND;
248 }
249
250 blobmsg_for_each_attr(cur, tb[ALIAS_ATTR_ALIAS], rem) {
251 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
252 goto error;
253
254 if (!blobmsg_check_attr(cur, NULL))
255 goto error;
256
257 alias_notify_device(blobmsg_data(cur), dev);
258 }
259 return 0;
260
261 error:
262 device_free_unused(dev);
263 return UBUS_STATUS_INVALID_ARGUMENT;
264 }
265
266 enum {
267 DEV_STATE_NAME,
268 DEV_STATE_DEFER,
269 __DEV_STATE_MAX,
270 };
271
272 static const struct blobmsg_policy dev_state_policy[__DEV_STATE_MAX] = {
273 [DEV_STATE_NAME] = { .name = "name", .type = BLOBMSG_TYPE_STRING },
274 [DEV_STATE_DEFER] = { .name = "defer", .type = BLOBMSG_TYPE_BOOL },
275 };
276
277 static int
278 netifd_handle_set_state(struct ubus_context *ctx, struct ubus_object *obj,
279 struct ubus_request_data *req, const char *method,
280 struct blob_attr *msg)
281 {
282 struct device *dev = NULL;
283 struct blob_attr *tb[__DEV_STATE_MAX];
284 struct blob_attr *cur;
285
286 blobmsg_parse(dev_state_policy, __DEV_STATE_MAX, tb, blob_data(msg), blob_len(msg));
287
288 cur = tb[DEV_STATE_NAME];
289 if (!cur)
290 return UBUS_STATUS_INVALID_ARGUMENT;
291
292 dev = device_get(blobmsg_data(cur), false);
293 if (!dev)
294 return UBUS_STATUS_NOT_FOUND;
295
296 cur = tb[DEV_STATE_DEFER];
297 if (cur)
298 device_set_deferred(dev, !!blobmsg_get_u8(cur));
299
300 return 0;
301 }
302
303 static struct ubus_method dev_object_methods[] = {
304 UBUS_METHOD("status", netifd_dev_status, dev_policy),
305 UBUS_METHOD("set_alias", netifd_handle_alias, alias_attrs),
306 UBUS_METHOD("set_state", netifd_handle_set_state, dev_state_policy),
307 };
308
309 static struct ubus_object_type dev_object_type =
310 UBUS_OBJECT_TYPE("device", dev_object_methods);
311
312 static struct ubus_object dev_object = {
313 .name = "network.device",
314 .type = &dev_object_type,
315 .methods = dev_object_methods,
316 .n_methods = ARRAY_SIZE(dev_object_methods),
317 };
318
319 static void
320 netifd_ubus_add_fd(void)
321 {
322 ubus_add_uloop(ctx);
323 system_fd_set_cloexec(ctx->sock.fd);
324 }
325
326 static void
327 netifd_ubus_reconnect_timer(struct uloop_timeout *timeout)
328 {
329 static struct uloop_timeout retry = {
330 .cb = netifd_ubus_reconnect_timer,
331 };
332 int t = 2;
333
334 if (ubus_reconnect(ctx, ubus_path) != 0) {
335 DPRINTF("failed to reconnect, trying again in %d seconds\n", t);
336 uloop_timeout_set(&retry, t * 1000);
337 return;
338 }
339
340 DPRINTF("reconnected to ubus, new id: %08x\n", ctx->local_id);
341 netifd_ubus_add_fd();
342 }
343
344 static void
345 netifd_ubus_connection_lost(struct ubus_context *ctx)
346 {
347 netifd_ubus_reconnect_timer(NULL);
348 }
349
350 /* per-interface object */
351
352 static int
353 netifd_handle_up(struct ubus_context *ctx, struct ubus_object *obj,
354 struct ubus_request_data *req, const char *method,
355 struct blob_attr *msg)
356 {
357 struct interface *iface;
358
359 iface = container_of(obj, struct interface, ubus);
360 interface_set_up(iface);
361
362 return 0;
363 }
364
365 static int
366 netifd_handle_down(struct ubus_context *ctx, struct ubus_object *obj,
367 struct ubus_request_data *req, const char *method,
368 struct blob_attr *msg)
369 {
370 struct interface *iface;
371
372 iface = container_of(obj, struct interface, ubus);
373 interface_set_down(iface);
374
375 return 0;
376 }
377
378 static void
379 netifd_add_interface_errors(struct blob_buf *b, struct interface *iface)
380 {
381 struct interface_error *error;
382 void *e, *e2, *e3;
383 int i;
384
385 e = blobmsg_open_array(b, "errors");
386 list_for_each_entry(error, &iface->errors, list) {
387 e2 = blobmsg_open_table(b, NULL);
388
389 blobmsg_add_string(b, "subsystem", error->subsystem);
390 blobmsg_add_string(b, "code", error->code);
391 if (error->data[0]) {
392 e3 = blobmsg_open_array(b, "data");
393 for (i = 0; error->data[i]; i++)
394 blobmsg_add_string(b, NULL, error->data[i]);
395 blobmsg_close_array(b, e3);
396 }
397
398 blobmsg_close_table(b, e2);
399 }
400 blobmsg_close_array(b, e);
401 }
402
403 static void
404 interface_ip_dump_address_list(struct interface_ip_settings *ip, bool v6,
405 bool enabled)
406 {
407 struct device_addr *addr;
408 char *buf;
409 void *a;
410 int buflen = 128;
411 int af;
412
413 time_t now = system_get_rtime();
414 vlist_for_each_element(&ip->addr, addr, node) {
415 if (addr->enabled != enabled)
416 continue;
417
418 if ((addr->flags & DEVADDR_FAMILY) == DEVADDR_INET4)
419 af = AF_INET;
420 else
421 af = AF_INET6;
422
423 if (af != (v6 ? AF_INET6 : AF_INET))
424 continue;
425
426 a = blobmsg_open_table(&b, NULL);
427
428 buf = blobmsg_alloc_string_buffer(&b, "address", buflen);
429 inet_ntop(af, &addr->addr, buf, buflen);
430 blobmsg_add_string_buffer(&b);
431
432 blobmsg_add_u32(&b, "mask", addr->mask);
433
434 if (addr->preferred_until) {
435 int preferred = addr->preferred_until - now;
436 if (preferred < 0)
437 preferred = 0;
438 blobmsg_add_u32(&b, "preferred", preferred);
439 }
440
441 if (addr->valid_until)
442 blobmsg_add_u32(&b, "valid", addr->valid_until - now);
443
444 if (addr->pclass)
445 blobmsg_add_string(&b, "class", addr->pclass);
446
447 blobmsg_close_table(&b, a);
448 }
449 }
450
451 static void
452 interface_ip_dump_route_list(struct interface_ip_settings *ip, bool enabled)
453 {
454 struct device_route *route;
455 int buflen = 128;
456 char *buf;
457 void *r;
458 int af;
459
460 time_t now = system_get_rtime();
461 vlist_for_each_element(&ip->route, route, node) {
462 if (route->enabled != enabled)
463 continue;
464
465 if ((route->flags & DEVADDR_FAMILY) == DEVADDR_INET4)
466 af = AF_INET;
467 else
468 af = AF_INET6;
469
470 r = blobmsg_open_table(&b, NULL);
471
472 buf = blobmsg_alloc_string_buffer(&b, "target", buflen);
473 inet_ntop(af, &route->addr, buf, buflen);
474 blobmsg_add_string_buffer(&b);
475
476 blobmsg_add_u32(&b, "mask", route->mask);
477
478 buf = blobmsg_alloc_string_buffer(&b, "nexthop", buflen);
479 inet_ntop(af, &route->nexthop, buf, buflen);
480 blobmsg_add_string_buffer(&b);
481
482 if (route->flags & DEVROUTE_MTU)
483 blobmsg_add_u32(&b, "mtu", route->mtu);
484
485 if (route->flags & DEVROUTE_METRIC)
486 blobmsg_add_u32(&b, "metric", route->metric);
487
488 if (route->flags & DEVROUTE_TABLE)
489 blobmsg_add_u32(&b, "table", route->table);
490
491 if (route->valid_until)
492 blobmsg_add_u32(&b, "valid", route->valid_until - now);
493
494 buf = blobmsg_alloc_string_buffer(&b, "source", buflen);
495 inet_ntop(af, &route->source, buf, buflen);
496 snprintf(buf + strlen(buf), 4, "/%u", route->sourcemask);
497 blobmsg_add_string_buffer(&b);
498
499 blobmsg_close_table(&b, r);
500 }
501 }
502
503
504 static void
505 interface_ip_dump_prefix_list(struct interface_ip_settings *ip)
506 {
507 struct device_prefix *prefix;
508 char *buf;
509 void *a, *c;
510 const int buflen = INET6_ADDRSTRLEN;
511
512 time_t now = system_get_rtime();
513 vlist_for_each_element(&ip->prefix, prefix, node) {
514 a = blobmsg_open_table(&b, NULL);
515
516 buf = blobmsg_alloc_string_buffer(&b, "address", buflen);
517 inet_ntop(AF_INET6, &prefix->addr, buf, buflen);
518 blobmsg_add_string_buffer(&b);
519
520 blobmsg_add_u32(&b, "mask", prefix->length);
521
522 if (prefix->preferred_until) {
523 int preferred = prefix->preferred_until - now;
524 if (preferred < 0)
525 preferred = 0;
526 blobmsg_add_u32(&b, "preferred", preferred);
527 }
528
529 if (prefix->valid_until)
530 blobmsg_add_u32(&b, "valid", prefix->valid_until - now);
531
532 blobmsg_add_string(&b, "class", prefix->pclass);
533
534 c = blobmsg_open_table(&b, "assigned");
535 struct device_prefix_assignment *assign;
536 list_for_each_entry(assign, &prefix->assignments, head) {
537 if (!assign->name[0])
538 continue;
539
540 struct in6_addr addr = prefix->addr;
541 addr.s6_addr32[1] |= htonl(assign->assigned);
542
543 void *d = blobmsg_open_table(&b, assign->name);
544
545 buf = blobmsg_alloc_string_buffer(&b, "address", buflen);
546 inet_ntop(AF_INET6, &addr, buf, buflen);
547 blobmsg_add_string_buffer(&b);
548
549 blobmsg_add_u32(&b, "mask", assign->length);
550
551 blobmsg_close_table(&b, d);
552 }
553 blobmsg_close_table(&b, c);
554
555 blobmsg_close_table(&b, a);
556 }
557 }
558
559
560 static void
561 interface_ip_dump_prefix_assignment_list(struct interface *iface)
562 {
563 void *a;
564 char *buf;
565 const int buflen = INET6_ADDRSTRLEN;
566 time_t now = system_get_rtime();
567
568 struct device_prefix *prefix;
569 list_for_each_entry(prefix, &prefixes, head) {
570 struct device_prefix_assignment *assign;
571 list_for_each_entry(assign, &prefix->assignments, head) {
572 if (strcmp(assign->name, iface->name))
573 continue;
574
575 struct in6_addr addr = prefix->addr;
576 addr.s6_addr32[1] |= htonl(assign->assigned);
577
578 a = blobmsg_open_table(&b, NULL);
579
580 buf = blobmsg_alloc_string_buffer(&b, "address", buflen);
581 inet_ntop(AF_INET6, &addr, buf, buflen);
582 blobmsg_add_string_buffer(&b);
583
584 blobmsg_add_u32(&b, "mask", assign->length);
585
586 if (prefix->preferred_until) {
587 int preferred = prefix->preferred_until - now;
588 if (preferred < 0)
589 preferred = 0;
590 blobmsg_add_u32(&b, "preferred", preferred);
591 }
592
593 if (prefix->valid_until)
594 blobmsg_add_u32(&b, "valid", prefix->valid_until - now);
595
596 blobmsg_close_table(&b, a);
597 }
598 }
599 }
600
601
602 static void
603 interface_ip_dump_dns_server_list(struct interface_ip_settings *ip,
604 bool enabled)
605 {
606 struct dns_server *dns;
607 int buflen = 128;
608 char *buf;
609
610 vlist_simple_for_each_element(&ip->dns_servers, dns, node) {
611 if (ip->no_dns == enabled)
612 continue;
613
614 buf = blobmsg_alloc_string_buffer(&b, NULL, buflen);
615 inet_ntop(dns->af, &dns->addr, buf, buflen);
616 blobmsg_add_string_buffer(&b);
617 }
618 }
619
620 static void
621 interface_ip_dump_dns_search_list(struct interface_ip_settings *ip,
622 bool enabled)
623 {
624 struct dns_search_domain *dns;
625
626 vlist_simple_for_each_element(&ip->dns_search, dns, node) {
627 if (ip->no_dns == enabled)
628 continue;
629
630 blobmsg_add_string(&b, NULL, dns->name);
631 }
632 }
633
634 static void
635 netifd_dump_status(struct interface *iface)
636 {
637 struct interface_data *data;
638 struct device *dev;
639 void *a, *inactive;
640
641 blobmsg_add_u8(&b, "up", iface->state == IFS_UP);
642 blobmsg_add_u8(&b, "pending", iface->state == IFS_SETUP);
643 blobmsg_add_u8(&b, "available", iface->available);
644 blobmsg_add_u8(&b, "autostart", iface->autostart);
645
646 if (iface->state == IFS_UP) {
647 time_t cur = system_get_rtime();
648 blobmsg_add_u32(&b, "uptime", cur - iface->start_time);
649 blobmsg_add_string(&b, "l3_device", iface->l3_dev.dev->ifname);
650 }
651
652 if (iface->proto_handler)
653 blobmsg_add_string(&b, "proto", iface->proto_handler->name);
654
655 dev = iface->main_dev.dev;
656 if (dev && !dev->hidden &&
657 !(iface->proto_handler->flags & PROTO_FLAG_NODEV))
658 blobmsg_add_string(&b, "device", dev->ifname);
659
660 if (iface->state == IFS_UP) {
661 blobmsg_add_u32(&b, "metric", iface->metric);
662 blobmsg_add_u8(&b, "delegation", !iface->proto_ip.no_delegation);
663 a = blobmsg_open_array(&b, "ipv4-address");
664 interface_ip_dump_address_list(&iface->config_ip, false, true);
665 interface_ip_dump_address_list(&iface->proto_ip, false, true);
666 blobmsg_close_array(&b, a);
667 a = blobmsg_open_array(&b, "ipv6-address");
668 interface_ip_dump_address_list(&iface->config_ip, true, true);
669 interface_ip_dump_address_list(&iface->proto_ip, true, true);
670 blobmsg_close_array(&b, a);
671 a = blobmsg_open_array(&b, "ipv6-prefix");
672 interface_ip_dump_prefix_list(&iface->config_ip);
673 interface_ip_dump_prefix_list(&iface->proto_ip);
674 blobmsg_close_array(&b, a);
675 a = blobmsg_open_array(&b, "ipv6-prefix-assignment");
676 interface_ip_dump_prefix_assignment_list(iface);
677 blobmsg_close_array(&b, a);
678 a = blobmsg_open_array(&b, "route");
679 interface_ip_dump_route_list(&iface->config_ip, true);
680 interface_ip_dump_route_list(&iface->proto_ip, true);
681 blobmsg_close_array(&b, a);
682 a = blobmsg_open_array(&b, "dns-server");
683 interface_ip_dump_dns_server_list(&iface->config_ip, true);
684 interface_ip_dump_dns_server_list(&iface->proto_ip, true);
685 blobmsg_close_array(&b, a);
686 a = blobmsg_open_array(&b, "dns-search");
687 interface_ip_dump_dns_search_list(&iface->config_ip, true);
688 interface_ip_dump_dns_search_list(&iface->proto_ip, true);
689 blobmsg_close_array(&b, a);
690
691 inactive = blobmsg_open_table(&b, "inactive");
692 a = blobmsg_open_array(&b, "ipv4-address");
693 interface_ip_dump_address_list(&iface->config_ip, false, false);
694 interface_ip_dump_address_list(&iface->proto_ip, false, false);
695 blobmsg_close_array(&b, a);
696 a = blobmsg_open_array(&b, "ipv6-address");
697 interface_ip_dump_address_list(&iface->config_ip, true, false);
698 interface_ip_dump_address_list(&iface->proto_ip, true, false);
699 blobmsg_close_array(&b, a);
700 a = blobmsg_open_array(&b, "route");
701 interface_ip_dump_route_list(&iface->config_ip, false);
702 interface_ip_dump_route_list(&iface->proto_ip, false);
703 blobmsg_close_array(&b, a);
704 a = blobmsg_open_array(&b, "dns-server");
705 interface_ip_dump_dns_server_list(&iface->config_ip, false);
706 interface_ip_dump_dns_server_list(&iface->proto_ip, false);
707 blobmsg_close_array(&b, a);
708 a = blobmsg_open_array(&b, "dns-search");
709 interface_ip_dump_dns_search_list(&iface->config_ip, false);
710 interface_ip_dump_dns_search_list(&iface->proto_ip, false);
711 blobmsg_close_array(&b, a);
712 blobmsg_close_table(&b, inactive);
713 }
714
715 a = blobmsg_open_table(&b, "data");
716 avl_for_each_element(&iface->data, data, node)
717 blob_put(&b, blob_id(data->data), blob_data(data->data), blob_len(data->data));
718
719 blobmsg_close_table(&b, a);
720
721 if (!list_is_empty(&iface->errors))
722 netifd_add_interface_errors(&b, iface);
723 }
724
725 static int
726 netifd_handle_status(struct ubus_context *ctx, struct ubus_object *obj,
727 struct ubus_request_data *req, const char *method,
728 struct blob_attr *msg)
729 {
730 struct interface *iface = container_of(obj, struct interface, ubus);
731
732 blob_buf_init(&b, 0);
733 netifd_dump_status(iface);
734 ubus_send_reply(ctx, req, b.head);
735
736 return 0;
737 }
738
739
740 static int
741 netifd_handle_dump(struct ubus_context *ctx, struct ubus_object *obj,
742 struct ubus_request_data *req, const char *method,
743 struct blob_attr *msg)
744 {
745 blob_buf_init(&b, 0);
746 void *a = blobmsg_open_array(&b, "interface");
747
748 struct interface *iface;
749 vlist_for_each_element(&interfaces, iface, node) {
750 void *i = blobmsg_open_table(&b, NULL);
751 blobmsg_add_string(&b, "interface", iface->name);
752 netifd_dump_status(iface);
753 blobmsg_close_table(&b, i);
754 }
755
756 blobmsg_close_array(&b, a);
757 ubus_send_reply(ctx, req, b.head);
758
759 return 0;
760 }
761
762 static int
763 netifd_iface_handle_device(struct ubus_context *ctx, struct ubus_object *obj,
764 struct ubus_request_data *req, const char *method,
765 struct blob_attr *msg)
766 {
767 struct blob_attr *tb[__DEV_MAX];
768 struct interface *iface;
769 bool add = !strncmp(method, "add", 3);
770
771 iface = container_of(obj, struct interface, ubus);
772
773 blobmsg_parse(dev_policy, __DEV_MAX, tb, blob_data(msg), blob_len(msg));
774
775 if (!tb[DEV_NAME])
776 return UBUS_STATUS_INVALID_ARGUMENT;
777
778 return interface_handle_link(iface, blobmsg_data(tb[DEV_NAME]), add);
779 }
780
781
782 static int
783 netifd_iface_notify_proto(struct ubus_context *ctx, struct ubus_object *obj,
784 struct ubus_request_data *req, const char *method,
785 struct blob_attr *msg)
786 {
787 struct interface *iface;
788
789 iface = container_of(obj, struct interface, ubus);
790
791 if (!iface->proto || !iface->proto->notify)
792 return UBUS_STATUS_NOT_SUPPORTED;
793
794 return iface->proto->notify(iface->proto, msg);
795 }
796
797 static void
798 netifd_iface_do_remove(struct uloop_timeout *timeout)
799 {
800 struct interface *iface;
801
802 iface = container_of(timeout, struct interface, remove_timer);
803 vlist_delete(&interfaces, &iface->node);
804 }
805
806 static int
807 netifd_iface_remove(struct ubus_context *ctx, struct ubus_object *obj,
808 struct ubus_request_data *req, const char *method,
809 struct blob_attr *msg)
810 {
811 struct interface *iface;
812
813 iface = container_of(obj, struct interface, ubus);
814 if (iface->remove_timer.cb)
815 return UBUS_STATUS_INVALID_ARGUMENT;
816
817 iface->remove_timer.cb = netifd_iface_do_remove;
818 uloop_timeout_set(&iface->remove_timer, 100);
819 return 0;
820 }
821
822 static int
823 netifd_handle_iface_prepare(struct ubus_context *ctx, struct ubus_object *obj,
824 struct ubus_request_data *req, const char *method,
825 struct blob_attr *msg)
826 {
827 struct interface *iface;
828 struct device *dev;
829 const struct device_hotplug_ops *ops;
830
831 iface = container_of(obj, struct interface, ubus);
832 dev = iface->main_dev.dev;
833 if (!dev)
834 return 0;
835
836 ops = dev->hotplug_ops;
837 if (!ops)
838 return 0;
839
840 return ops->prepare(dev);
841 }
842
843 static int
844 netifd_handle_set_data(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 blob_attr *cur;
850 int rem, ret;
851
852 iface = container_of(obj, struct interface, ubus);
853
854 blob_for_each_attr(cur, msg, rem) {
855 ret = interface_add_data(iface, cur);
856 if (ret)
857 return ret;
858 }
859
860 return 0;
861 }
862
863 static struct ubus_method iface_object_methods[] = {
864 { .name = "up", .handler = netifd_handle_up },
865 { .name = "down", .handler = netifd_handle_down },
866 { .name = "status", .handler = netifd_handle_status },
867 { .name = "prepare", .handler = netifd_handle_iface_prepare },
868 { .name = "dump", .handler = netifd_handle_dump },
869 UBUS_METHOD("add_device", netifd_iface_handle_device, dev_policy ),
870 UBUS_METHOD("remove_device", netifd_iface_handle_device, dev_policy ),
871 { .name = "notify_proto", .handler = netifd_iface_notify_proto },
872 { .name = "remove", .handler = netifd_iface_remove },
873 { .name = "set_data", .handler = netifd_handle_set_data },
874 };
875
876 static struct ubus_object_type iface_object_type =
877 UBUS_OBJECT_TYPE("netifd_iface", iface_object_methods);
878
879
880 static struct ubus_object iface_object = {
881 .name = "network.interface",
882 .type = &iface_object_type,
883 .n_methods = ARRAY_SIZE(iface_object_methods),
884 };
885
886 static void netifd_add_object(struct ubus_object *obj)
887 {
888 int ret = ubus_add_object(ctx, obj);
889
890 if (ret != 0)
891 fprintf(stderr, "Failed to publish object '%s': %s\n", obj->name, ubus_strerror(ret));
892 }
893
894 static const struct blobmsg_policy iface_policy = {
895 .name = "interface",
896 .type = BLOBMSG_TYPE_STRING,
897 };
898
899 static int
900 netifd_handle_iface(struct ubus_context *ctx, struct ubus_object *obj,
901 struct ubus_request_data *req, const char *method,
902 struct blob_attr *msg)
903 {
904 struct interface *iface;
905 struct blob_attr *tb;
906 int i;
907
908 blobmsg_parse(&iface_policy, 1, &tb, blob_data(msg), blob_len(msg));
909 if (!tb)
910 return UBUS_STATUS_INVALID_ARGUMENT;
911
912 iface = vlist_find(&interfaces, blobmsg_data(tb), iface, node);
913 if (!iface)
914 return UBUS_STATUS_NOT_FOUND;
915
916 for (i = 0; i < ARRAY_SIZE(iface_object_methods); i++) {
917 ubus_handler_t cb;
918
919 if (strcmp(method, iface_object_methods[i].name) != 0)
920 continue;
921
922 cb = iface_object_methods[i].handler;
923 return cb(ctx, &iface->ubus, req, method, msg);
924 }
925
926 return UBUS_STATUS_INVALID_ARGUMENT;
927 }
928
929 static void netifd_add_iface_object(void)
930 {
931 struct ubus_method *methods;
932 int i;
933
934 methods = calloc(1, sizeof(iface_object_methods));
935 memcpy(methods, iface_object_methods, sizeof(iface_object_methods));
936 iface_object.methods = methods;
937
938 for (i = 0; i < ARRAY_SIZE(iface_object_methods); i++) {
939 if (methods[i].handler == netifd_handle_dump)
940 continue;
941
942 methods[i].handler = netifd_handle_iface;
943 methods[i].policy = &iface_policy;
944 methods[i].n_policy = 1;
945 }
946 netifd_add_object(&iface_object);
947 }
948
949 int
950 netifd_ubus_init(const char *path)
951 {
952 uloop_init();
953 ubus_path = path;
954
955 ctx = ubus_connect(path);
956 if (!ctx)
957 return -EIO;
958
959 DPRINTF("connected as %08x\n", ctx->local_id);
960 ctx->connection_lost = netifd_ubus_connection_lost;
961 netifd_ubus_add_fd();
962
963 netifd_add_object(&main_object);
964 netifd_add_object(&dev_object);
965 netifd_add_iface_object();
966
967 return 0;
968 }
969
970 void
971 netifd_ubus_done(void)
972 {
973 ubus_free(ctx);
974 }
975
976 void
977 netifd_ubus_interface_event(struct interface *iface, bool up)
978 {
979 blob_buf_init(&b, 0);
980 blobmsg_add_string(&b, "action", up ? "ifup" : "ifdown");
981 blobmsg_add_string(&b, "interface", iface->name);
982 ubus_send_event(ctx, "network.interface", b.head);
983 }
984
985 void
986 netifd_ubus_interface_notify(struct interface *iface, bool up)
987 {
988 const char *event = (up) ? "update" : "down";
989 blob_buf_init(&b, 0);
990 blobmsg_add_string(&b, "interface", iface->name);
991 netifd_dump_status(iface);
992 ubus_notify(ctx, &iface_object, event, b.head, -1);
993 ubus_notify(ctx, &iface->ubus, event, b.head, -1);
994 }
995
996 void
997 netifd_ubus_add_interface(struct interface *iface)
998 {
999 struct ubus_object *obj = &iface->ubus;
1000 char *name = NULL;
1001
1002 if (asprintf(&name, "%s.interface.%s", main_object.name, iface->name) == -1)
1003 return;
1004
1005 obj->name = name;
1006 obj->type = &iface_object_type;
1007 obj->methods = iface_object_methods;
1008 obj->n_methods = ARRAY_SIZE(iface_object_methods);
1009 if (ubus_add_object(ctx, &iface->ubus)) {
1010 DPRINTF("failed to publish ubus object for interface '%s'\n", iface->name);
1011 free(name);
1012 obj->name = NULL;
1013 }
1014 }
1015
1016 void
1017 netifd_ubus_remove_interface(struct interface *iface)
1018 {
1019 if (!iface->ubus.name)
1020 return;
1021
1022 ubus_remove_object(ctx, &iface->ubus);
1023 free((void *) iface->ubus.name);
1024 }
OpenWrt Network interface configuration daemon