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Sources/netifd/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 static struct udebug_ubus udebug;
 31 
 32 /* global object */
 33 
 34 static int
 35 netifd_handle_restart(struct ubus_context *ctx, struct ubus_object *obj,
 36                       struct ubus_request_data *req, const char *method,
 37                       struct blob_attr *msg)
 38 {
 39         netifd_restart();
 40         return 0;
 41 }
 42 
 43 static int
 44 netifd_handle_reload(struct ubus_context *ctx, struct ubus_object *obj,
 45                      struct ubus_request_data *req, const char *method,
 46                      struct blob_attr *msg)
 47 {
 48         if (netifd_reload())
 49                 return UBUS_STATUS_NOT_FOUND;
 50 
 51         return UBUS_STATUS_OK;
 52 }
 53 
 54 enum {
 55         HR_TARGET,
 56         HR_V6,
 57         HR_INTERFACE,
 58         HR_EXCLUDE,
 59         __HR_MAX
 60 };
 61 
 62 static const struct blobmsg_policy route_policy[__HR_MAX] = {
 63         [HR_TARGET] = { .name = "target", .type = BLOBMSG_TYPE_STRING },
 64         [HR_V6] = { .name = "v6", .type = BLOBMSG_TYPE_BOOL },
 65         [HR_INTERFACE] = { .name = "interface", .type = BLOBMSG_TYPE_STRING },
 66         [HR_EXCLUDE] = { .name = "exclude", .type = BLOBMSG_TYPE_BOOL },
 67 };
 68 
 69 static int
 70 netifd_add_host_route(struct ubus_context *ctx, struct ubus_object *obj,
 71                       struct ubus_request_data *req, const char *method,
 72                       struct blob_attr *msg)
 73 {
 74         struct blob_attr *tb[__HR_MAX];
 75         struct interface *iface = NULL;
 76         union if_addr a;
 77         bool v6 = false;
 78         bool exclude = false;
 79 
 80         blobmsg_parse(route_policy, __HR_MAX, tb, blob_data(msg), blob_len(msg));
 81         if (!tb[HR_TARGET])
 82                 return UBUS_STATUS_INVALID_ARGUMENT;
 83 
 84         if (tb[HR_V6])
 85                 v6 = blobmsg_get_bool(tb[HR_V6]);
 86 
 87         if (tb[HR_EXCLUDE])
 88                 exclude = blobmsg_get_bool(tb[HR_EXCLUDE]);
 89 
 90         if (tb[HR_INTERFACE])
 91                 iface = vlist_find(&interfaces, blobmsg_data(tb[HR_INTERFACE]), iface, node);
 92 
 93         memset(&a, 0, sizeof(a));
 94         if (!inet_pton(v6 ? AF_INET6 : AF_INET, blobmsg_data(tb[HR_TARGET]), &a))
 95                 return UBUS_STATUS_INVALID_ARGUMENT;
 96 
 97         iface = interface_ip_add_target_route(&a, v6, iface, exclude);
 98         if (!iface)
 99                 return UBUS_STATUS_NOT_FOUND;
100 
101         blob_buf_init(&b, 0);
102         blobmsg_add_string(&b, "interface", iface->name);
103         ubus_send_reply(ctx, req, b.head);
104 
105         return 0;
106 }
107 
108 static int
109 netifd_get_proto_handlers(struct ubus_context *ctx, struct ubus_object *obj,
110                           struct ubus_request_data *req, const char *method,
111                           struct blob_attr *msg)
112 {
113         blob_buf_init(&b, 0);
114         proto_dump_handlers(&b);
115         ubus_send_reply(ctx, req, b.head);
116 
117         return 0;
118 }
119 
120 
121 enum {
122         DI_NAME,
123         __DI_MAX
124 };
125 
126 static const struct blobmsg_policy dynamic_policy[__DI_MAX] = {
127         [DI_NAME] = { .name = "name", .type = BLOBMSG_TYPE_STRING },
128 };
129 
130 static int
131 netifd_add_dynamic(struct ubus_context *ctx, struct ubus_object *obj,
132                       struct ubus_request_data *req, const char *method,
133                       struct blob_attr *msg)
134 {
135         struct blob_attr *tb[__DI_MAX];
136         struct interface *iface;
137         struct blob_attr *config;
138 
139         blobmsg_parse(dynamic_policy, __DI_MAX, tb, blob_data(msg), blob_len(msg));
140 
141         if (!tb[DI_NAME])
142                 return UBUS_STATUS_INVALID_ARGUMENT;
143 
144         const char *name = blobmsg_get_string(tb[DI_NAME]);
145 
146         iface = interface_alloc(name, msg, true);
147         if (!iface)
148                 return UBUS_STATUS_UNKNOWN_ERROR;
149 
150         config = blob_memdup(msg);
151         if (!config)
152                 goto error;
153 
154         if (!interface_add(iface, config))
155                 goto error_free_config;
156 
157         return UBUS_STATUS_OK;
158 
159 error_free_config:
160         free(config);
161 error:
162         free(iface);
163         return UBUS_STATUS_UNKNOWN_ERROR;
164 }
165 
166 enum {
167         NETNS_UPDOWN_JAIL,
168         NETNS_UPDOWN_START,
169         __NETNS_UPDOWN_MAX
170 };
171 
172 static const struct blobmsg_policy netns_updown_policy[__NETNS_UPDOWN_MAX] = {
173         [NETNS_UPDOWN_JAIL] = { .name = "jail", .type = BLOBMSG_TYPE_STRING },
174         [NETNS_UPDOWN_START] = { .name = "start", .type = BLOBMSG_TYPE_BOOL },
175 };
176 
177 static int
178 netifd_netns_updown(struct ubus_context *ctx, struct ubus_object *obj,
179                   struct ubus_request_data *req, const char *method,
180                   struct blob_attr *msg)
181 {
182         int target_netns_fd = ubus_request_get_caller_fd(req);
183         struct blob_attr *tb[__NETNS_UPDOWN_MAX];
184         bool start;
185 
186         if (target_netns_fd < 0)
187                 return UBUS_STATUS_INVALID_ARGUMENT;
188 
189         blobmsg_parse(netns_updown_policy, __NETNS_UPDOWN_MAX, tb, blob_data(msg), blob_len(msg));
190 
191         start = tb[NETNS_UPDOWN_START] && blobmsg_get_bool(tb[NETNS_UPDOWN_START]);
192 
193         if (start) {
194                 if (!tb[NETNS_UPDOWN_JAIL])
195                         return UBUS_STATUS_INVALID_ARGUMENT;
196 
197                 interface_start_jail(target_netns_fd, blobmsg_get_string(tb[NETNS_UPDOWN_JAIL]));
198         } else {
199                 interface_stop_jail(target_netns_fd);
200         }
201         close(target_netns_fd);
202 
203         return UBUS_STATUS_OK;
204 }
205 
206 static struct ubus_method main_object_methods[] = {
207         { .name = "restart", .handler = netifd_handle_restart },
208         { .name = "reload", .handler = netifd_handle_reload },
209         UBUS_METHOD("add_host_route", netifd_add_host_route, route_policy),
210         { .name = "get_proto_handlers", .handler = netifd_get_proto_handlers },
211         UBUS_METHOD("add_dynamic", netifd_add_dynamic, dynamic_policy),
212         UBUS_METHOD("netns_updown", netifd_netns_updown, netns_updown_policy),
213 };
214 
215 static struct ubus_object_type main_object_type =
216         UBUS_OBJECT_TYPE("netifd", main_object_methods);
217 
218 static struct ubus_object main_object = {
219         .name = "network",
220         .type = &main_object_type,
221         .methods = main_object_methods,
222         .n_methods = ARRAY_SIZE(main_object_methods),
223 };
224 
225 enum {
226         DEV_NAME,
227         __DEV_MAX,
228 };
229 
230 static const struct blobmsg_policy dev_policy[__DEV_MAX] = {
231         [DEV_NAME] = { .name = "name", .type = BLOBMSG_TYPE_STRING },
232 };
233 
234 static int
235 netifd_dev_status(struct ubus_context *ctx, struct ubus_object *obj,
236                   struct ubus_request_data *req, const char *method,
237                   struct blob_attr *msg)
238 {
239         struct device *dev = NULL;
240         struct blob_attr *tb[__DEV_MAX];
241 
242         blobmsg_parse(dev_policy, __DEV_MAX, tb, blob_data(msg), blob_len(msg));
243 
244         if (tb[DEV_NAME]) {
245                 dev = device_find(blobmsg_data(tb[DEV_NAME]));
246                 if (!dev)
247                         return UBUS_STATUS_INVALID_ARGUMENT;
248         }
249 
250         blob_buf_init(&b, 0);
251         device_dump_status(&b, dev);
252         ubus_send_reply(ctx, req, b.head);
253 
254         return 0;
255 }
256 
257 enum {
258         ALIAS_ATTR_ALIAS,
259         ALIAS_ATTR_DEV,
260         __ALIAS_ATTR_MAX,
261 };
262 
263 static const struct blobmsg_policy alias_attrs[__ALIAS_ATTR_MAX] = {
264         [ALIAS_ATTR_ALIAS] = { "alias", BLOBMSG_TYPE_ARRAY },
265         [ALIAS_ATTR_DEV] = { "device", BLOBMSG_TYPE_STRING },
266 };
267 
268 static int
269 netifd_handle_alias(struct ubus_context *ctx, struct ubus_object *obj,
270                     struct ubus_request_data *req, const char *method,
271                     struct blob_attr *msg)
272 {
273         struct device *dev = NULL;
274         struct blob_attr *tb[__ALIAS_ATTR_MAX];
275         struct blob_attr *cur;
276         size_t rem;
277 
278         blobmsg_parse(alias_attrs, __ALIAS_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
279 
280         if (!tb[ALIAS_ATTR_ALIAS])
281                 return UBUS_STATUS_INVALID_ARGUMENT;
282 
283         if ((cur = tb[ALIAS_ATTR_DEV]) != NULL) {
284                 dev = device_get(blobmsg_data(cur), true);
285                 if (!dev)
286                         return UBUS_STATUS_NOT_FOUND;
287         }
288 
289         blobmsg_for_each_attr(cur, tb[ALIAS_ATTR_ALIAS], rem) {
290                 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
291                         goto error;
292 
293                 if (!blobmsg_check_attr(cur, false))
294                         goto error;
295 
296                 alias_notify_device(blobmsg_data(cur), dev);
297         }
298         return 0;
299 
300 error:
301         device_free_unused();
302         return UBUS_STATUS_INVALID_ARGUMENT;
303 }
304 
305 enum {
306         DEV_STATE_NAME,
307         DEV_STATE_DEFER,
308         DEV_STATE_AUTH_STATUS,
309         DEV_STATE_AUTH_VLANS,
310         __DEV_STATE_MAX,
311 };
312 
313 static const struct blobmsg_policy dev_state_policy[__DEV_STATE_MAX] = {
314         [DEV_STATE_NAME] = { .name = "name", .type = BLOBMSG_TYPE_STRING },
315         [DEV_STATE_DEFER] = { .name = "defer", .type = BLOBMSG_TYPE_BOOL },
316         [DEV_STATE_AUTH_STATUS] = { .name = "auth_status", .type = BLOBMSG_TYPE_BOOL },
317         [DEV_STATE_AUTH_VLANS] = { .name = "auth_vlans", BLOBMSG_TYPE_ARRAY },
318 };
319 
320 static int
321 netifd_handle_set_state(struct ubus_context *ctx, struct ubus_object *obj,
322                         struct ubus_request_data *req, const char *method,
323                         struct blob_attr *msg)
324 {
325         struct device *dev = NULL;
326         struct blob_attr *tb[__DEV_STATE_MAX];
327         struct blob_attr *cur;
328         bool auth_status;
329 
330         blobmsg_parse(dev_state_policy, __DEV_STATE_MAX, tb, blob_data(msg), blob_len(msg));
331 
332         cur = tb[DEV_STATE_NAME];
333         if (!cur)
334                 return UBUS_STATUS_INVALID_ARGUMENT;
335 
336         dev = device_find(blobmsg_data(cur));
337         if (!dev)
338                 return UBUS_STATUS_NOT_FOUND;
339 
340         cur = tb[DEV_STATE_DEFER];
341         if (cur)
342                 device_set_deferred(dev, !!blobmsg_get_u8(cur));
343 
344         if ((cur = tb[DEV_STATE_AUTH_STATUS]) != NULL)
345                 auth_status = blobmsg_get_bool(cur);
346         else
347                 auth_status = dev->auth_status;
348         if (tb[DEV_STATE_AUTH_STATUS] || tb[DEV_STATE_AUTH_VLANS])
349                 device_set_auth_status(dev, auth_status, tb[DEV_STATE_AUTH_VLANS]);
350 
351         return 0;
352 }
353 
354 #ifdef DUMMY_MODE
355 enum {
356     DEV_HOTPLUG_ATTR_NAME,
357     DEV_HOTPLUG_ATTR_ADD,
358     __DEV_HOTPLUG_ATTR_MAX,
359 };
360 
361 static const struct blobmsg_policy dev_hotplug_policy[__DEV_HOTPLUG_ATTR_MAX] = {
362     [DEV_HOTPLUG_ATTR_NAME] = { "name", BLOBMSG_TYPE_STRING },
363     [DEV_HOTPLUG_ATTR_ADD] = { "add", BLOBMSG_TYPE_BOOL },
364 };
365 
366 static int
367 netifd_handle_dev_hotplug(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 blob_attr *tb[__DEV_HOTPLUG_ATTR_MAX];
372         const char *name;
373 
374         blobmsg_parse(dev_hotplug_policy, __DEV_HOTPLUG_ATTR_MAX, tb,
375                       blob_data(msg), blob_len(msg));
376 
377         if (!tb[DEV_HOTPLUG_ATTR_NAME] || !tb[DEV_HOTPLUG_ATTR_ADD])
378                 return UBUS_STATUS_INVALID_ARGUMENT;
379 
380         name = blobmsg_get_string(tb[DEV_HOTPLUG_ATTR_NAME]);
381         device_hotplug_event(name, blobmsg_get_bool(tb[DEV_HOTPLUG_ATTR_ADD]));
382 
383         return 0;
384 }
385 #endif
386 
387 static int
388 netifd_handle_stp_init(struct ubus_context *ctx, struct ubus_object *obj,
389                        struct ubus_request_data *req, const char *method,
390                        struct blob_attr *msg)
391 {
392         device_stp_init();
393 
394         return 0;
395 }
396 
397 static struct ubus_method dev_object_methods[] = {
398         UBUS_METHOD("status", netifd_dev_status, dev_policy),
399         UBUS_METHOD("set_alias", netifd_handle_alias, alias_attrs),
400         UBUS_METHOD("set_state", netifd_handle_set_state, dev_state_policy),
401 #ifdef DUMMY_MODE
402         UBUS_METHOD("hotplug_event", netifd_handle_dev_hotplug, dev_hotplug_policy),
403 #endif
404         UBUS_METHOD_NOARG("stp_init", netifd_handle_stp_init)
405 };
406 
407 static struct ubus_object_type dev_object_type =
408         UBUS_OBJECT_TYPE("device", dev_object_methods);
409 
410 static struct ubus_object dev_object = {
411         .name = "network.device",
412         .type = &dev_object_type,
413         .methods = dev_object_methods,
414         .n_methods = ARRAY_SIZE(dev_object_methods),
415 };
416 
417 static void
418 netifd_ubus_add_fd(void)
419 {
420         ubus_add_uloop(ubus_ctx);
421         system_fd_set_cloexec(ubus_ctx->sock.fd);
422 }
423 
424 void netifd_ubus_device_notify(const char *event, struct blob_attr *data, int timeout)
425 {
426         ubus_notify(ubus_ctx, &dev_object, event, data, timeout);
427 }
428 
429 static void
430 netifd_ubus_reconnect_timer(struct uloop_timeout *timeout)
431 {
432         static struct uloop_timeout retry = {
433                 .cb = netifd_ubus_reconnect_timer,
434         };
435         int t = 2;
436 
437         if (ubus_reconnect(ubus_ctx, ubus_path) != 0) {
438                 D(SYSTEM, "failed to reconnect, trying again in %d seconds", t);
439                 uloop_timeout_set(&retry, t * 1000);
440                 return;
441         }
442 
443         D(SYSTEM, "reconnected to ubus, new id: %08x", ubus_ctx->local_id);
444         netifd_ubus_add_fd();
445 }
446 
447 static void
448 netifd_ubus_connection_lost(struct ubus_context *ctx)
449 {
450         netifd_ubus_reconnect_timer(NULL);
451 }
452 
453 /* per-interface object */
454 
455 static int
456 netifd_handle_up(struct ubus_context *ctx, struct ubus_object *obj,
457                  struct ubus_request_data *req, const char *method,
458                  struct blob_attr *msg)
459 {
460         struct interface *iface;
461 
462         iface = container_of(obj, struct interface, ubus);
463         interface_set_up(iface);
464 
465         return 0;
466 }
467 
468 static int
469 netifd_handle_down(struct ubus_context *ctx, struct ubus_object *obj,
470                    struct ubus_request_data *req, const char *method,
471                    struct blob_attr *msg)
472 {
473         struct interface *iface;
474 
475         iface = container_of(obj, struct interface, ubus);
476         interface_set_down(iface);
477 
478         return 0;
479 }
480 
481 static int
482 netifd_handle_renew(struct ubus_context *ctx, struct ubus_object *obj,
483                    struct ubus_request_data *req, const char *method,
484                    struct blob_attr *msg)
485 {
486         struct interface *iface;
487 
488         iface = container_of(obj, struct interface, ubus);
489         interface_renew(iface);
490 
491         return 0;
492 }
493 
494 static void
495 netifd_add_interface_errors(struct blob_buf *b, struct interface *iface)
496 {
497         struct interface_error *error;
498         void *e, *e2, *e3;
499         int i;
500 
501         e = blobmsg_open_array(b, "errors");
502         list_for_each_entry(error, &iface->errors, list) {
503                 e2 = blobmsg_open_table(b, NULL);
504 
505                 blobmsg_add_string(b, "subsystem", error->subsystem);
506                 blobmsg_add_string(b, "code", error->code);
507                 if (error->data[0]) {
508                         e3 = blobmsg_open_array(b, "data");
509                         for (i = 0; error->data[i]; i++)
510                                 blobmsg_add_string(b, NULL, error->data[i]);
511                         blobmsg_close_array(b, e3);
512                 }
513 
514                 blobmsg_close_table(b, e2);
515         }
516         blobmsg_close_array(b, e);
517 }
518 
519 static void
520 interface_ip_dump_address_list(struct interface_ip_settings *ip, bool v6, bool enabled)
521 {
522         struct device_addr *addr;
523         char *buf;
524         void *a;
525         int buflen = 128;
526         int af;
527 
528         time_t now = system_get_rtime();
529         vlist_for_each_element(&ip->addr, addr, node) {
530                 if (addr->enabled != enabled)
531                         continue;
532 
533                 if ((addr->flags & DEVADDR_FAMILY) == DEVADDR_INET4)
534                         af = AF_INET;
535                 else
536                         af = AF_INET6;
537 
538                 if (af != (v6 ? AF_INET6 : AF_INET))
539                         continue;
540 
541                 a = blobmsg_open_table(&b, NULL);
542 
543                 buf = blobmsg_alloc_string_buffer(&b, "address", buflen);
544                 inet_ntop(af, &addr->addr, buf, buflen);
545                 blobmsg_add_string_buffer(&b);
546 
547                 blobmsg_add_u32(&b, "mask", addr->mask);
548 
549                 if (addr->point_to_point) {
550                         buf = blobmsg_alloc_string_buffer(&b, "ptpaddress", buflen);
551                         inet_ntop(af, &addr->point_to_point, buf, buflen);
552                         blobmsg_add_string_buffer(&b);
553                 }
554 
555                 if (addr->preferred_until) {
556                         int preferred = addr->preferred_until - now;
557                         if (preferred < 0)
558                                 preferred = 0;
559                         blobmsg_add_u32(&b, "preferred", preferred);
560                 }
561 
562                 if (addr->valid_until)
563                         blobmsg_add_u32(&b, "valid", addr->valid_until - now);
564 
565                 if (addr->pclass)
566                         blobmsg_add_string(&b, "class", addr->pclass);
567 
568                 blobmsg_close_table(&b, a);
569         }
570 }
571 
572 static void
573 interface_ip_dump_neighbor_list(struct interface_ip_settings *ip, bool enabled)
574 {
575         struct device_neighbor *neighbor;
576         int buflen = 128;
577         char *buf;
578         void *r;
579         int af;
580 
581         vlist_for_each_element(&ip->neighbor, neighbor, node) {
582                 if (neighbor->enabled != enabled)
583                         continue;
584 
585                 if ((neighbor->flags & DEVADDR_FAMILY) == DEVADDR_INET4)
586                         af = AF_INET;
587                 else
588                         af = AF_INET6;
589 
590                 r = blobmsg_open_table(&b, NULL);
591 
592                 if (neighbor->flags & DEVNEIGH_MAC)
593                         blobmsg_add_string(&b, "mac", format_macaddr(neighbor->macaddr));
594 
595                 buf = blobmsg_alloc_string_buffer(&b , "address", buflen);
596                 inet_ntop(af, &neighbor->addr, buf, buflen);
597                 blobmsg_add_string_buffer(&b);
598 
599                 if (neighbor->proxy)
600                         blobmsg_add_u32(&b, "proxy", neighbor->proxy);
601 
602                 if (neighbor->router)
603                         blobmsg_add_u32(&b, "router", neighbor->router);
604 
605                 blobmsg_close_table(&b, r);
606         }
607 }
608 
609 static void
610 interface_ip_dump_route_list(struct interface_ip_settings *ip, bool enabled)
611 {
612         struct device_route *route;
613         int buflen = 128;
614         char *buf;
615         void *r;
616         int af;
617 
618         time_t now = system_get_rtime();
619         vlist_for_each_element(&ip->route, route, node) {
620                 if (route->enabled != enabled)
621                         continue;
622 
623                 if ((ip->no_defaultroute == enabled) && !route->mask)
624                         continue;
625 
626                 if ((route->flags & DEVADDR_FAMILY) == DEVADDR_INET4)
627                         af = AF_INET;
628                 else
629                         af = AF_INET6;
630 
631                 r = blobmsg_open_table(&b, NULL);
632 
633                 buf = blobmsg_alloc_string_buffer(&b, "target", buflen);
634                 inet_ntop(af, &route->addr, buf, buflen);
635                 blobmsg_add_string_buffer(&b);
636 
637                 blobmsg_add_u32(&b, "mask", route->mask);
638 
639                 buf = blobmsg_alloc_string_buffer(&b, "nexthop", buflen);
640                 inet_ntop(af, &route->nexthop, buf, buflen);
641                 blobmsg_add_string_buffer(&b);
642 
643                 if (route->flags & DEVROUTE_TYPE)
644                         blobmsg_add_u32(&b, "type", route->type);
645 
646                 if (route->flags & DEVROUTE_PROTO)
647                         blobmsg_add_u32(&b, "proto", route->proto);
648 
649                 if (route->flags & DEVROUTE_MTU)
650                         blobmsg_add_u32(&b, "mtu", route->mtu);
651 
652                 if (route->flags & DEVROUTE_METRIC)
653                         blobmsg_add_u32(&b, "metric", route->metric);
654 
655                 if (route->flags & DEVROUTE_TABLE)
656                         blobmsg_add_u32(&b, "table", route->table);
657 
658                 if (route->valid_until)
659                         blobmsg_add_u32(&b, "valid", route->valid_until - now);
660 
661                 buf = blobmsg_alloc_string_buffer(&b, "source", buflen);
662                 inet_ntop(af, &route->source, buf, buflen);
663                 snprintf(buf + strlen(buf), buflen - strlen(buf), "/%u", route->sourcemask);
664                 blobmsg_add_string_buffer(&b);
665 
666                 blobmsg_close_table(&b, r);
667         }
668 }
669 
670 
671 static void
672 interface_ip_dump_prefix_list(struct interface_ip_settings *ip)
673 {
674         struct device_prefix *prefix;
675         char *buf;
676         void *a, *c;
677         const int buflen = INET6_ADDRSTRLEN;
678 
679         time_t now = system_get_rtime();
680         vlist_for_each_element(&ip->prefix, prefix, node) {
681                 a = blobmsg_open_table(&b, NULL);
682 
683                 buf = blobmsg_alloc_string_buffer(&b, "address", buflen);
684                 inet_ntop(AF_INET6, &prefix->addr, buf, buflen);
685                 blobmsg_add_string_buffer(&b);
686 
687                 blobmsg_add_u32(&b, "mask", prefix->length);
688 
689                 if (prefix->preferred_until) {
690                         int preferred = prefix->preferred_until - now;
691                         if (preferred < 0)
692                                 preferred = 0;
693                         blobmsg_add_u32(&b, "preferred", preferred);
694                 }
695 
696                 if (prefix->valid_until)
697                         blobmsg_add_u32(&b, "valid", prefix->valid_until - now);
698 
699                 blobmsg_add_string(&b, "class", prefix->pclass);
700 
701                 c = blobmsg_open_table(&b, "assigned");
702                 struct device_prefix_assignment *assign;
703                 list_for_each_entry(assign, &prefix->assignments, head) {
704                         if (!assign->name[0])
705                                 continue;
706 
707                         struct in6_addr addr = prefix->addr;
708                         addr.s6_addr32[1] |= htonl(assign->assigned);
709 
710                         void *d = blobmsg_open_table(&b, assign->name);
711 
712                         buf = blobmsg_alloc_string_buffer(&b, "address", buflen);
713                         inet_ntop(AF_INET6, &addr, buf, buflen);
714                         blobmsg_add_string_buffer(&b);
715 
716                         blobmsg_add_u32(&b, "mask", assign->length);
717 
718                         blobmsg_close_table(&b, d);
719                 }
720                 blobmsg_close_table(&b, c);
721 
722                 blobmsg_close_table(&b, a);
723         }
724 }
725 
726 
727 static void
728 interface_ip_dump_prefix_assignment_list(struct interface *iface)
729 {
730         void *a;
731         char *buf;
732         const int buflen = INET6_ADDRSTRLEN;
733         time_t now = system_get_rtime();
734 
735         struct device_prefix *prefix;
736         list_for_each_entry(prefix, &prefixes, head) {
737                 struct device_prefix_assignment *assign;
738                 list_for_each_entry(assign, &prefix->assignments, head) {
739                         if (strcmp(assign->name, iface->name))
740                                 continue;
741 
742                         struct in6_addr addr = prefix->addr;
743                         addr.s6_addr32[1] |= htonl(assign->assigned);
744 
745                         a = blobmsg_open_table(&b, NULL);
746 
747                         buf = blobmsg_alloc_string_buffer(&b, "address", buflen);
748                         inet_ntop(AF_INET6, &addr, buf, buflen);
749                         blobmsg_add_string_buffer(&b);
750 
751                         blobmsg_add_u32(&b, "mask", assign->length);
752 
753                         if (prefix->preferred_until) {
754                                 int preferred = prefix->preferred_until - now;
755                                 if (preferred < 0)
756                                         preferred = 0;
757                                 blobmsg_add_u32(&b, "preferred", preferred);
758                         }
759 
760                         if (prefix->valid_until)
761                                 blobmsg_add_u32(&b, "valid", prefix->valid_until - now);
762 
763                         void *c = blobmsg_open_table(&b, "local-address");
764                         if (assign->enabled) {
765                                 buf = blobmsg_alloc_string_buffer(&b, "address", buflen);
766                                 inet_ntop(AF_INET6, &assign->addr, buf, buflen);
767                                 blobmsg_add_string_buffer(&b);
768 
769                                 blobmsg_add_u32(&b, "mask", assign->length);
770                         }
771                         blobmsg_close_table(&b, c);
772 
773                         blobmsg_close_table(&b, a);
774                 }
775         }
776 }
777 
778 static void
779 interface_ip_dump_dns_server_list(struct interface_ip_settings *ip, bool enabled)
780 {
781         struct dns_server *dns;
782         int buflen = 128;
783         char *buf;
784 
785         vlist_simple_for_each_element(&ip->dns_servers, dns, node) {
786                 if (ip->no_dns == enabled)
787                         continue;
788 
789                 buf = blobmsg_alloc_string_buffer(&b, NULL, buflen);
790                 inet_ntop(dns->af, &dns->addr, buf, buflen);
791                 blobmsg_add_string_buffer(&b);
792         }
793 }
794 
795 static void
796 interface_ip_dump_dns_search_list(struct interface_ip_settings *ip, bool enabled)
797 {
798         struct dns_search_domain *dns;
799 
800         vlist_simple_for_each_element(&ip->dns_search, dns, node) {
801                 if (ip->no_dns == enabled)
802                         continue;
803 
804                 blobmsg_add_string(&b, NULL, dns->name);
805         }
806 }
807 
808 static void
809 netifd_dump_status(struct interface *iface)
810 {
811         struct interface_data *data;
812         struct device *dev;
813         void *a, *inactive;
814 
815         blobmsg_add_u8(&b, "up", iface->state == IFS_UP);
816         blobmsg_add_u8(&b, "pending", iface->state == IFS_SETUP);
817         blobmsg_add_u8(&b, "available", iface->available);
818         blobmsg_add_u8(&b, "autostart", iface->autostart);
819         blobmsg_add_u8(&b, "dynamic", iface->dynamic);
820 
821         if (iface->state == IFS_UP) {
822                 time_t cur = system_get_rtime();
823                 blobmsg_add_u32(&b, "uptime", cur - iface->start_time);
824                 if (iface->l3_dev.dev)
825                         blobmsg_add_string(&b, "l3_device", iface->l3_dev.dev->ifname);
826         }
827 
828         if (iface->proto_handler)
829                 blobmsg_add_string(&b, "proto", iface->proto_handler->name);
830 
831         dev = iface->main_dev.dev;
832         if (dev && !dev->hidden && iface->proto_handler &&
833             !(iface->proto_handler->flags & PROTO_FLAG_NODEV))
834                 blobmsg_add_string(&b, "device", dev->ifname);
835 
836         if (iface->jail)
837                 blobmsg_add_string(&b, "jail", iface->jail);
838 
839         if (iface->jail_device)
840                 blobmsg_add_string(&b, "jail_device", iface->jail_device);
841 
842         if (iface->state == IFS_UP) {
843                 if (iface->updated) {
844                         a = blobmsg_open_array(&b, "updated");
845 
846                         if (iface->updated & IUF_ADDRESS)
847                                 blobmsg_add_string(&b, NULL, "addresses");
848                         if (iface->updated & IUF_ROUTE)
849                                 blobmsg_add_string(&b, NULL, "routes");
850                         if (iface->updated & IUF_PREFIX)
851                                 blobmsg_add_string(&b, NULL, "prefixes");
852                         if (iface->updated & IUF_DATA)
853                                 blobmsg_add_string(&b, NULL, "data");
854 
855                         blobmsg_close_array(&b, a);
856                 }
857 
858                 if (iface->ip4table)
859                         blobmsg_add_u32(&b, "ip4table", iface->ip4table);
860                 if (iface->ip6table)
861                         blobmsg_add_u32(&b, "ip6table", iface->ip6table);
862                 blobmsg_add_u32(&b, "metric", iface->metric);
863                 blobmsg_add_u32(&b, "dns_metric", iface->dns_metric);
864                 blobmsg_add_u8(&b, "delegation", !iface->proto_ip.no_delegation);
865                 if (iface->assignment_weight)
866                         blobmsg_add_u32(&b, "ip6weight", iface->assignment_weight);
867                 a = blobmsg_open_array(&b, "ipv4-address");
868                 interface_ip_dump_address_list(&iface->config_ip, false, true);
869                 interface_ip_dump_address_list(&iface->proto_ip, false, true);
870                 blobmsg_close_array(&b, a);
871                 a = blobmsg_open_array(&b, "ipv6-address");
872                 interface_ip_dump_address_list(&iface->config_ip, true, true);
873                 interface_ip_dump_address_list(&iface->proto_ip, true, true);
874                 blobmsg_close_array(&b, a);
875                 a = blobmsg_open_array(&b, "ipv6-prefix");
876                 interface_ip_dump_prefix_list(&iface->config_ip);
877                 interface_ip_dump_prefix_list(&iface->proto_ip);
878                 blobmsg_close_array(&b, a);
879                 a = blobmsg_open_array(&b, "ipv6-prefix-assignment");
880                 interface_ip_dump_prefix_assignment_list(iface);
881                 blobmsg_close_array(&b, a);
882                 a = blobmsg_open_array(&b, "route");
883                 interface_ip_dump_route_list(&iface->config_ip, true);
884                 interface_ip_dump_route_list(&iface->proto_ip, true);
885                 blobmsg_close_array(&b, a);
886                 a = blobmsg_open_array(&b, "dns-server");
887                 interface_ip_dump_dns_server_list(&iface->config_ip, true);
888                 interface_ip_dump_dns_server_list(&iface->proto_ip, true);
889                 blobmsg_close_array(&b, a);
890                 a = blobmsg_open_array(&b, "dns-search");
891                 interface_ip_dump_dns_search_list(&iface->config_ip, true);
892                 interface_ip_dump_dns_search_list(&iface->proto_ip, true);
893                 blobmsg_close_array(&b, a);
894                 a = blobmsg_open_array(&b, "neighbors");
895                 interface_ip_dump_neighbor_list(&iface->config_ip, true);
896                 interface_ip_dump_neighbor_list(&iface->proto_ip, true);
897                 blobmsg_close_array(&b, a);
898 
899                 inactive = blobmsg_open_table(&b, "inactive");
900                 a = blobmsg_open_array(&b, "ipv4-address");
901                 interface_ip_dump_address_list(&iface->config_ip, false, false);
902                 interface_ip_dump_address_list(&iface->proto_ip, false, false);
903                 blobmsg_close_array(&b, a);
904                 a = blobmsg_open_array(&b, "ipv6-address");
905                 interface_ip_dump_address_list(&iface->config_ip, true, false);
906                 interface_ip_dump_address_list(&iface->proto_ip, true, false);
907                 blobmsg_close_array(&b, a);
908                 a = blobmsg_open_array(&b, "route");
909                 interface_ip_dump_route_list(&iface->config_ip, false);
910                 interface_ip_dump_route_list(&iface->proto_ip, false);
911                 blobmsg_close_array(&b, a);
912                 a = blobmsg_open_array(&b, "dns-server");
913                 interface_ip_dump_dns_server_list(&iface->config_ip, false);
914                 interface_ip_dump_dns_server_list(&iface->proto_ip, false);
915                 blobmsg_close_array(&b, a);
916                 a = blobmsg_open_array(&b, "dns-search");
917                 interface_ip_dump_dns_search_list(&iface->config_ip, false);
918                 interface_ip_dump_dns_search_list(&iface->proto_ip, false);
919                 blobmsg_close_array(&b, a);
920                 a = blobmsg_open_array(&b, "neighbors");
921                 interface_ip_dump_neighbor_list(&iface->config_ip, false);
922                 interface_ip_dump_neighbor_list(&iface->proto_ip, false);
923                 blobmsg_close_array(&b, a);
924                 blobmsg_close_table(&b, inactive);
925         }
926 
927         a = blobmsg_open_table(&b, "data");
928 
929         if (iface->zone)
930                 blobmsg_add_string(&b, "zone", iface->zone);
931         avl_for_each_element(&iface->data, data, node)
932                 blobmsg_add_blob(&b, data->data);
933 
934         blobmsg_close_table(&b, a);
935 
936         if (!list_empty(&iface->errors))
937                 netifd_add_interface_errors(&b, iface);
938 }
939 
940 static int
941 netifd_handle_status(struct ubus_context *ctx, struct ubus_object *obj,
942                      struct ubus_request_data *req, const char *method,
943                      struct blob_attr *msg)
944 {
945         struct interface *iface = container_of(obj, struct interface, ubus);
946 
947         blob_buf_init(&b, 0);
948         netifd_dump_status(iface);
949         ubus_send_reply(ctx, req, b.head);
950 
951         return 0;
952 }
953 
954 
955 static int
956 netifd_handle_dump(struct ubus_context *ctx, struct ubus_object *obj,
957                      struct ubus_request_data *req, const char *method,
958                      struct blob_attr *msg)
959 {
960         blob_buf_init(&b, 0);
961         void *a = blobmsg_open_array(&b, "interface");
962 
963         struct interface *iface;
964         vlist_for_each_element(&interfaces, iface, node) {
965                 void *i = blobmsg_open_table(&b, NULL);
966                 blobmsg_add_string(&b, "interface", iface->name);
967                 netifd_dump_status(iface);
968                 blobmsg_close_table(&b, i);
969         }
970 
971         blobmsg_close_array(&b, a);
972         ubus_send_reply(ctx, req, b.head);
973 
974         return 0;
975 }
976 
977 enum {
978         DEV_LINK_NAME,
979         DEV_LINK_EXT,
980         DEV_LINK_VLAN,
981         __DEV_LINK_MAX,
982 };
983 
984 static const struct blobmsg_policy dev_link_policy[__DEV_LINK_MAX] = {
985         [DEV_LINK_NAME] = { .name = "name", .type = BLOBMSG_TYPE_STRING },
986         [DEV_LINK_EXT] = { .name = "link-ext", .type = BLOBMSG_TYPE_BOOL },
987         [DEV_LINK_VLAN] = { .name = "vlan", .type = BLOBMSG_TYPE_ARRAY },
988 };
989 
990 static int
991 netifd_iface_handle_device(struct ubus_context *ctx, struct ubus_object *obj,
992                            struct ubus_request_data *req, const char *method,
993                            struct blob_attr *msg)
994 {
995         struct blob_attr *tb[__DEV_LINK_MAX];
996         struct blob_attr *cur;
997         struct interface *iface;
998         bool add = !strncmp(method, "add", 3);
999         bool link_ext = true;
1000 
1001         iface = container_of(obj, struct interface, ubus);
1002 
1003         blobmsg_parse(dev_link_policy, __DEV_LINK_MAX, tb, blob_data(msg), blob_len(msg));
1004 
1005         if (!tb[DEV_LINK_NAME])
1006                 return UBUS_STATUS_INVALID_ARGUMENT;
1007 
1008         cur = tb[DEV_LINK_EXT];
1009         if (cur)
1010                 link_ext = blobmsg_get_bool(cur);
1011 
1012         return interface_handle_link(iface, blobmsg_data(tb[DEV_LINK_NAME]),
1013                                      tb[DEV_LINK_VLAN], add, link_ext);
1014 }
1015 
1016 
1017 static int
1018 netifd_iface_notify_proto(struct ubus_context *ctx, struct ubus_object *obj,
1019                           struct ubus_request_data *req, const char *method,
1020                           struct blob_attr *msg)
1021 {
1022         struct interface *iface;
1023 
1024         iface = container_of(obj, struct interface, ubus);
1025 
1026         if (!iface->proto || !iface->proto->notify)
1027                 return UBUS_STATUS_NOT_SUPPORTED;
1028 
1029         return iface->proto->notify(iface->proto, msg);
1030 }
1031 
1032 static void
1033 netifd_iface_do_remove(struct uloop_timeout *timeout)
1034 {
1035         struct interface *iface;
1036 
1037         iface = container_of(timeout, struct interface, remove_timer);
1038         vlist_delete(&interfaces, &iface->node);
1039 }
1040 
1041 static int
1042 netifd_iface_remove(struct ubus_context *ctx, struct ubus_object *obj,
1043                     struct ubus_request_data *req, const char *method,
1044                     struct blob_attr *msg)
1045 {
1046         struct interface *iface;
1047 
1048         iface = container_of(obj, struct interface, ubus);
1049         if (iface->remove_timer.cb)
1050                 return UBUS_STATUS_INVALID_ARGUMENT;
1051 
1052         iface->remove_timer.cb = netifd_iface_do_remove;
1053         uloop_timeout_set(&iface->remove_timer, 100);
1054         return 0;
1055 }
1056 
1057 static int
1058 netifd_handle_iface_prepare(struct ubus_context *ctx, struct ubus_object *obj,
1059                             struct ubus_request_data *req, const char *method,
1060                             struct blob_attr *msg)
1061 {
1062         struct interface *iface;
1063         struct device *dev, *bridge_dev = NULL;
1064         const struct device_hotplug_ops *ops;
1065 
1066         iface = container_of(obj, struct interface, ubus);
1067         dev = iface->main_dev.dev;
1068         if (!dev)
1069                 goto out;
1070 
1071         ops = dev->hotplug_ops;
1072         if (!ops)
1073                 goto out;
1074 
1075         ops->prepare(dev, &bridge_dev);
1076 
1077 out:
1078         blob_buf_init(&b, 0);
1079         if (bridge_dev)
1080                 blobmsg_add_string(&b, "bridge", bridge_dev->ifname);
1081         ubus_send_reply(ctx, req, b.head);
1082 
1083         return 0;
1084 }
1085 
1086 static int
1087 netifd_handle_set_data(struct ubus_context *ctx, struct ubus_object *obj,
1088                        struct ubus_request_data *req, const char *method,
1089                        struct blob_attr *msg)
1090 {
1091         struct interface *iface;
1092 
1093         iface = container_of(obj, struct interface, ubus);
1094 
1095         return interface_parse_data(iface, msg);
1096 }
1097 
1098 static struct ubus_method iface_object_methods[] = {
1099         { .name = "up", .handler = netifd_handle_up },
1100         { .name = "down", .handler = netifd_handle_down },
1101         { .name = "renew", .handler = netifd_handle_renew },
1102         { .name = "status", .handler = netifd_handle_status },
1103         { .name = "prepare", .handler = netifd_handle_iface_prepare },
1104         { .name = "dump", .handler = netifd_handle_dump },
1105         UBUS_METHOD("add_device", netifd_iface_handle_device, dev_link_policy ),
1106         UBUS_METHOD("remove_device", netifd_iface_handle_device, dev_link_policy ),
1107         { .name = "notify_proto", .handler = netifd_iface_notify_proto },
1108         { .name = "remove", .handler = netifd_iface_remove },
1109         { .name = "set_data", .handler = netifd_handle_set_data },
1110 };
1111 
1112 static struct ubus_object_type iface_object_type =
1113         UBUS_OBJECT_TYPE("netifd_iface", iface_object_methods);
1114 
1115 
1116 static struct ubus_object iface_object = {
1117         .name = "network.interface",
1118         .type = &iface_object_type,
1119         .n_methods = ARRAY_SIZE(iface_object_methods),
1120 };
1121 
1122 static void netifd_add_object(struct ubus_object *obj)
1123 {
1124         int ret = ubus_add_object(ubus_ctx, obj);
1125 
1126         if (ret != 0)
1127                 fprintf(stderr, "Failed to publish object '%s': %s\n", obj->name, ubus_strerror(ret));
1128 }
1129 
1130 static const struct blobmsg_policy iface_policy = {
1131         .name = "interface",
1132         .type = BLOBMSG_TYPE_STRING,
1133 };
1134 
1135 static int
1136 netifd_handle_iface(struct ubus_context *ctx, struct ubus_object *obj,
1137                     struct ubus_request_data *req, const char *method,
1138                     struct blob_attr *msg)
1139 {
1140         struct interface *iface;
1141         struct blob_attr *tb;
1142         size_t i;
1143 
1144         blobmsg_parse(&iface_policy, 1, &tb, blob_data(msg), blob_len(msg));
1145         if (!tb)
1146                 return UBUS_STATUS_INVALID_ARGUMENT;
1147 
1148         iface = vlist_find(&interfaces, blobmsg_data(tb), iface, node);
1149         if (!iface)
1150                 return UBUS_STATUS_NOT_FOUND;
1151 
1152         for (i = 0; i < ARRAY_SIZE(iface_object_methods); i++) {
1153                 ubus_handler_t cb;
1154 
1155                 if (strcmp(method, iface_object_methods[i].name) != 0)
1156                         continue;
1157 
1158                 cb = iface_object_methods[i].handler;
1159                 return cb(ctx, &iface->ubus, req, method, msg);
1160         }
1161 
1162         return UBUS_STATUS_INVALID_ARGUMENT;
1163 }
1164 
1165 static void netifd_add_iface_object(void)
1166 {
1167         struct ubus_method *methods;
1168         size_t i;
1169 
1170         methods = calloc(1, sizeof(iface_object_methods));
1171         if (!methods)
1172                 return;
1173 
1174         memcpy(methods, iface_object_methods, sizeof(iface_object_methods));
1175         iface_object.methods = methods;
1176 
1177         for (i = 0; i < ARRAY_SIZE(iface_object_methods); i++) {
1178                 if (methods[i].handler == netifd_handle_dump)
1179                         continue;
1180 
1181                 methods[i].handler = netifd_handle_iface;
1182                 methods[i].policy = &iface_policy;
1183                 methods[i].n_policy = 1;
1184         }
1185         netifd_add_object(&iface_object);
1186 }
1187 
1188 static struct wireless_device *
1189 get_wdev(struct blob_attr *msg, int *ret)
1190 {
1191         struct blobmsg_policy wdev_policy = {
1192                 .name = "device",
1193                 .type = BLOBMSG_TYPE_STRING,
1194         };
1195         struct blob_attr *dev_attr;
1196         struct wireless_device *wdev = NULL;
1197 
1198 
1199         blobmsg_parse(&wdev_policy, 1, &dev_attr, blob_data(msg), blob_len(msg));
1200         if (!dev_attr) {
1201                 *ret = UBUS_STATUS_INVALID_ARGUMENT;
1202                 return NULL;
1203         }
1204 
1205         wdev = vlist_find(&wireless_devices, blobmsg_data(dev_attr), wdev, node);
1206         if (!wdev) {
1207                 *ret = UBUS_STATUS_NOT_FOUND;
1208                 return NULL;
1209         }
1210 
1211         *ret = 0;
1212         return wdev;
1213 }
1214 
1215 static int
1216 netifd_handle_wdev_reconf(struct ubus_context *ctx, struct ubus_object *obj,
1217                           struct ubus_request_data *req, const char *method,
1218                           struct blob_attr *msg)
1219 {
1220         struct wireless_device *wdev;
1221         int ret;
1222 
1223         wdev = get_wdev(msg, &ret);
1224         if (ret == UBUS_STATUS_NOT_FOUND)
1225                 return ret;
1226 
1227         if (wdev) {
1228                 wireless_device_reconf(wdev);
1229         } else {
1230                 vlist_for_each_element(&wireless_devices, wdev, node)
1231                         wireless_device_reconf(wdev);
1232         }
1233 
1234         return 0;
1235 }
1236 
1237 static int
1238 netifd_handle_wdev_up(struct ubus_context *ctx, struct ubus_object *obj,
1239                       struct ubus_request_data *req, const char *method,
1240                       struct blob_attr *msg)
1241 {
1242         struct wireless_device *wdev;
1243         int ret;
1244 
1245         wdev = get_wdev(msg, &ret);
1246         if (ret == UBUS_STATUS_NOT_FOUND)
1247                 return ret;
1248 
1249         if (wdev) {
1250                 wireless_device_set_up(wdev);
1251         } else {
1252                 vlist_for_each_element(&wireless_devices, wdev, node)
1253                         wireless_device_set_up(wdev);
1254         }
1255 
1256         return 0;
1257 }
1258 
1259 static int
1260 netifd_handle_wdev_down(struct ubus_context *ctx, struct ubus_object *obj,
1261                         struct ubus_request_data *req, const char *method,
1262                         struct blob_attr *msg)
1263 {
1264         struct wireless_device *wdev;
1265         int ret;
1266 
1267         wdev = get_wdev(msg, &ret);
1268         if (ret == UBUS_STATUS_NOT_FOUND)
1269                 return ret;
1270 
1271         if (wdev) {
1272                 wireless_device_set_down(wdev);
1273         } else {
1274                 vlist_for_each_element(&wireless_devices, wdev, node)
1275                         wireless_device_set_down(wdev);
1276         }
1277 
1278         return 0;
1279 }
1280 
1281 static int
1282 netifd_handle_wdev_status(struct ubus_context *ctx, struct ubus_object *obj,
1283                           struct ubus_request_data *req, const char *method,
1284                           struct blob_attr *msg)
1285 {
1286         struct wireless_device *wdev;
1287         int ret;
1288 
1289         wdev = get_wdev(msg, &ret);
1290         if (ret == UBUS_STATUS_NOT_FOUND)
1291                 return ret;
1292 
1293         blob_buf_init(&b, 0);
1294         if (wdev) {
1295                 wireless_device_status(wdev, &b);
1296         } else {
1297                 vlist_for_each_element(&wireless_devices, wdev, node)
1298                         wireless_device_status(wdev, &b);
1299         }
1300         ubus_send_reply(ctx, req, b.head);
1301         return 0;
1302 }
1303 
1304 static int
1305 netifd_handle_wdev_get_validate(struct ubus_context *ctx, struct ubus_object *obj,
1306                           struct ubus_request_data *req, const char *method,
1307                           struct blob_attr *msg)
1308 {
1309         struct wireless_device *wdev;
1310         int ret;
1311 
1312         wdev = get_wdev(msg, &ret);
1313         if (ret == UBUS_STATUS_NOT_FOUND)
1314                 return ret;
1315 
1316         blob_buf_init(&b, 0);
1317         if (wdev) {
1318                 wireless_device_get_validate(wdev, &b);
1319         } else {
1320                 vlist_for_each_element(&wireless_devices, wdev, node)
1321                         wireless_device_get_validate(wdev, &b);
1322         }
1323         ubus_send_reply(ctx, req, b.head);
1324         return 0;
1325 }
1326 
1327 static int
1328 netifd_handle_wdev_notify(struct ubus_context *ctx, struct ubus_object *obj,
1329                           struct ubus_request_data *req, const char *method,
1330                           struct blob_attr *msg)
1331 {
1332         struct wireless_device *wdev;
1333         int ret;
1334 
1335         wdev = get_wdev(msg, &ret);
1336         if (!wdev)
1337                 return ret;
1338 
1339         return wireless_device_notify(wdev, msg, req);
1340 }
1341 
1342 static struct ubus_method wireless_object_methods[] = {
1343         { .name = "up", .handler = netifd_handle_wdev_up },
1344         { .name = "down", .handler = netifd_handle_wdev_down },
1345         { .name = "reconf", .handler = netifd_handle_wdev_reconf },
1346         { .name = "status", .handler = netifd_handle_wdev_status },
1347         { .name = "notify", .handler = netifd_handle_wdev_notify },
1348         { .name = "get_validate", .handler = netifd_handle_wdev_get_validate },
1349 };
1350 
1351 static struct ubus_object_type wireless_object_type =
1352         UBUS_OBJECT_TYPE("netifd_iface", wireless_object_methods);
1353 
1354 
1355 static struct ubus_object wireless_object = {
1356         .name = "network.wireless",
1357         .type = &wireless_object_type,
1358         .methods = wireless_object_methods,
1359         .n_methods = ARRAY_SIZE(wireless_object_methods),
1360 };
1361 
1362 int
1363 netifd_extdev_invoke(uint32_t id, const char *method, struct blob_attr *msg,
1364          ubus_data_handler_t data_cb, void *data)
1365 {
1366         return ubus_invoke(ubus_ctx, id, method, msg, data_cb, data, 3000);
1367 }
1368 
1369 int
1370 netifd_ubus_init(const char *path)
1371 {
1372         ubus_path = path;
1373 
1374         ubus_ctx = ubus_connect(path);
1375         if (!ubus_ctx)
1376                 return -EIO;
1377 
1378         D(SYSTEM, "connected as %08x", ubus_ctx->local_id);
1379         ubus_ctx->connection_lost = netifd_ubus_connection_lost;
1380         netifd_ubus_add_fd();
1381 
1382         netifd_add_object(&main_object);
1383         netifd_add_object(&dev_object);
1384         netifd_add_object(&wireless_object);
1385         netifd_add_iface_object();
1386 
1387         udebug_ubus_init(&udebug, ubus_ctx, "netifd", netifd_udebug_config);
1388 
1389         return 0;
1390 }
1391 
1392 void
1393 netifd_ubus_done(void)
1394 {
1395         udebug_ubus_free(&udebug);
1396         ubus_free(ubus_ctx);
1397 }
1398 
1399 void
1400 netifd_ubus_interface_event(struct interface *iface, bool up)
1401 {
1402         blob_buf_init(&b, 0);
1403         blobmsg_add_string(&b, "action", up ? "ifup" : "ifdown");
1404         blobmsg_add_string(&b, "interface", iface->name);
1405         ubus_send_event(ubus_ctx, "network.interface", b.head);
1406 }
1407 
1408 void
1409 netifd_ubus_interface_notify(struct interface *iface, bool up)
1410 {
1411         const char *event = (up) ? "interface.update" : "interface.down";
1412         blob_buf_init(&b, 0);
1413         blobmsg_add_string(&b, "interface", iface->name);
1414         netifd_dump_status(iface);
1415         ubus_notify(ubus_ctx, &iface_object, event, b.head, -1);
1416         ubus_notify(ubus_ctx, &iface->ubus, event, b.head, -1);
1417 }
1418 
1419 void
1420 netifd_ubus_add_interface(struct interface *iface)
1421 {
1422         struct ubus_object *obj = &iface->ubus;
1423         char *name = NULL;
1424 
1425         if (asprintf(&name, "%s.interface.%s", main_object.name, iface->name) == -1)
1426                 return;
1427 
1428         obj->name = name;
1429         obj->type = &iface_object_type;
1430         obj->methods = iface_object_methods;
1431         obj->n_methods = ARRAY_SIZE(iface_object_methods);
1432         if (ubus_add_object(ubus_ctx, &iface->ubus)) {
1433                 D(SYSTEM, "failed to publish ubus object for interface '%s'", iface->name);
1434                 free(name);
1435                 obj->name = NULL;
1436         }
1437 }
1438 
1439 void
1440 netifd_ubus_remove_interface(struct interface *iface)
1441 {
1442         if (!iface->ubus.name)
1443                 return;
1444 
1445         ubus_remove_object(ubus_ctx, &iface->ubus);
1446         free((void *) iface->ubus.name);
1447 }
1448 

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