service/service.c

   1 /*
   2  * Copyright (C) 2013 Felix Fietkau <nbd@openwrt.org>
   3  * Copyright (C) 2013 John Crispin <blogic@openwrt.org>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU Lesser General Public License version 2.1
   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
  15 #include <libubox/blobmsg_json.h>
  16 #include <libubox/avl-cmp.h>
  17
  18 #include "../procd.h"
  19
  20 #include "service.h"
  21 #include "instance.h"
  22
  23 #include "../rcS.h"
  24
  25 AVL_TREE(services, avl_strcmp, false, NULL);
  26 static struct blob_buf b;
  27 static struct ubus_context *ctx;
  28
  29 static void
  30 service_instance_add(struct service *s, struct blob_attr *attr)
  31 {
  32         struct service_instance *in;
  33
  34         if (blobmsg_type(attr) != BLOBMSG_TYPE_TABLE)
  35                 return;
  36
  37         in = calloc(1, sizeof(*in));
  38         if (!in)
  39                 return;
  40
  41         instance_init(in, s, attr);
  42         vlist_add(&s->instances, &in->node, (void *) in->name);
  43 }
  44
  45 static void
  46 service_instance_update(struct vlist_tree *tree, struct vlist_node *node_new,
  47                         struct vlist_node *node_old)
  48 {
  49         struct service_instance *in_o = NULL, *in_n = NULL;
  50
  51         if (node_old)
  52                 in_o = container_of(node_old, struct service_instance, node);
  53
  54         if (node_new)
  55                 in_n = container_of(node_new, struct service_instance, node);
  56
  57         if (in_o && in_n) {
  58                 DEBUG(2, "Update instance %s::%s\n", in_o->srv->name, in_o->name);
  59                 instance_update(in_o, in_n);
  60                 instance_free(in_n);
  61         } else if (in_o) {
  62                 DEBUG(2, "Stop instance %s::%s\n", in_o->srv->name, in_o->name);
  63                 instance_stop(in_o);
  64         } else if (in_n) {
  65                 DEBUG(2, "Start instance %s::%s\n", in_n->srv->name, in_n->name);
  66                 instance_start(in_n);
  67         }
  68         blob_buf_init(&b, 0);
  69         trigger_event("instance.update", b.head);
  70 }
  71
  72 static struct service *
  73 service_alloc(const char *name)
  74 {
  75         struct service *s;
  76         char *new_name;
  77
  78         s = calloc_a(sizeof(*s), &new_name, strlen(name) + 1);
  79         strcpy(new_name, name);
  80
  81         vlist_init(&s->instances, avl_strcmp, service_instance_update);
  82         s->instances.no_delete = true;
  83         s->name = new_name;
  84         s->avl.key = s->name;
  85         INIT_LIST_HEAD(&s->validators);
  86
  87         return s;
  88 }
  89
  90 enum {
  91         SERVICE_SET_NAME,
  92         SERVICE_SET_SCRIPT,
  93         SERVICE_SET_INSTANCES,
  94         SERVICE_SET_TRIGGER,
  95         SERVICE_SET_VALIDATE,
  96         __SERVICE_SET_MAX
  97 };
  98
  99 static const struct blobmsg_policy service_set_attrs[__SERVICE_SET_MAX] = {
 100         [SERVICE_SET_NAME] = { "name", BLOBMSG_TYPE_STRING },
 101         [SERVICE_SET_SCRIPT] = { "script", BLOBMSG_TYPE_STRING },
 102         [SERVICE_SET_INSTANCES] = { "instances", BLOBMSG_TYPE_TABLE },
 103         [SERVICE_SET_TRIGGER] = { "triggers", BLOBMSG_TYPE_ARRAY },
 104         [SERVICE_SET_VALIDATE] = { "validate", BLOBMSG_TYPE_ARRAY },
 105 };
 106
 107 static int
 108 service_update(struct service *s, struct blob_attr **tb, bool add)
 109 {
 110         struct blob_attr *cur;
 111         int rem;
 112
 113         if (s->trigger) {
 114                 trigger_del(s);
 115                 free(s->trigger);
 116                 s->trigger = NULL;
 117         }
 118
 119         service_validate_del(s);
 120
 121         if (tb[SERVICE_SET_TRIGGER] && blobmsg_data_len(tb[SERVICE_SET_TRIGGER])) {
 122                 s->trigger = blob_memdup(tb[SERVICE_SET_TRIGGER]);
 123                 if (!s->trigger)
 124                         return -1;
 125                 trigger_add(s->trigger, s);
 126         }
 127
 128         if (tb[SERVICE_SET_VALIDATE] && blobmsg_data_len(tb[SERVICE_SET_VALIDATE])) {
 129                 blobmsg_for_each_attr(cur, tb[SERVICE_SET_VALIDATE], rem)
 130                         service_validate_add(s, cur);
 131         }
 132
 133         if (tb[SERVICE_SET_INSTANCES]) {
 134                 if (!add)
 135                         vlist_update(&s->instances);
 136                 blobmsg_for_each_attr(cur, tb[SERVICE_SET_INSTANCES], rem) {
 137                         service_instance_add(s, cur);
 138                 }
 139                 if (!add)
 140                         vlist_flush(&s->instances);
 141         }
 142
 143         rc(s->name, "running");
 144
 145         return 0;
 146 }
 147
 148 static void
 149 service_delete(struct service *s)
 150 {
 151         vlist_flush_all(&s->instances);
 152         service_stopped(s);
 153 }
 154
 155 enum {
 156         SERVICE_ATTR_NAME,
 157         __SERVICE_ATTR_MAX,
 158 };
 159
 160 static const struct blobmsg_policy service_attrs[__SERVICE_ATTR_MAX] = {
 161         [SERVICE_ATTR_NAME] = { "name", BLOBMSG_TYPE_STRING },
 162 };
 163
 164 enum {
 165         SERVICE_DEL_ATTR_NAME,
 166         SERVICE_DEL_ATTR_INSTANCE,
 167         __SERVICE_DEL_ATTR_MAX,
 168 };
 169
 170 static const struct blobmsg_policy service_del_attrs[__SERVICE_DEL_ATTR_MAX] = {
 171         [SERVICE_DEL_ATTR_NAME] = { "name", BLOBMSG_TYPE_STRING },
 172         [SERVICE_DEL_ATTR_INSTANCE] = { "instance", BLOBMSG_TYPE_STRING },
 173 };
 174
 175 enum {
 176         SERVICE_LIST_ATTR_NAME,
 177         SERVICE_LIST_ATTR_VERBOSE,
 178         __SERVICE_LIST_ATTR_MAX,
 179 };
 180
 181 static const struct blobmsg_policy service_list_attrs[__SERVICE_LIST_ATTR_MAX] = {
 182         [SERVICE_LIST_ATTR_NAME] = { "name", BLOBMSG_TYPE_STRING },
 183         [SERVICE_LIST_ATTR_VERBOSE] = { "verbose", BLOBMSG_TYPE_BOOL },
 184 };
 185
 186 enum {
 187         SERVICE_SIGNAL_ATTR_NAME,
 188         SERVICE_SIGNAL_ATTR_INSTANCE,
 189         SERVICE_SIGNAL_ATTR_SIGNAL,
 190         __SERVICE_SIGNAL_ATTR_MAX,
 191 };
 192
 193 static const struct blobmsg_policy service_signal_attrs[__SERVICE_SIGNAL_ATTR_MAX] = {
 194         [SERVICE_SIGNAL_ATTR_NAME] = { "name", BLOBMSG_TYPE_STRING },
 195         [SERVICE_SIGNAL_ATTR_INSTANCE] = { "instance", BLOBMSG_TYPE_STRING },
 196         [SERVICE_SIGNAL_ATTR_SIGNAL] = { "signal", BLOBMSG_TYPE_INT32 },
 197 };
 198
 199 enum {
 200         EVENT_TYPE,
 201         EVENT_DATA,
 202         __EVENT_MAX
 203 };
 204
 205 static const struct blobmsg_policy event_policy[__EVENT_MAX] = {
 206         [EVENT_TYPE] = { .name = "type", .type = BLOBMSG_TYPE_STRING },
 207         [EVENT_DATA] = { .name = "data", .type = BLOBMSG_TYPE_TABLE },
 208 };
 209
 210 enum {
 211         VALIDATE_PACKAGE,
 212         VALIDATE_TYPE,
 213         VALIDATE_SERVICE,
 214         __VALIDATE_MAX
 215 };
 216
 217 static const struct blobmsg_policy validate_policy[__VALIDATE_MAX] = {
 218         [VALIDATE_PACKAGE] = { .name = "package", .type = BLOBMSG_TYPE_STRING },
 219         [VALIDATE_TYPE] = { .name = "type", .type = BLOBMSG_TYPE_STRING },
 220         [VALIDATE_SERVICE] = { .name = "service", .type = BLOBMSG_TYPE_STRING },
 221 };
 222
 223 enum {
 224         DATA_NAME,
 225         DATA_INSTANCE,
 226         DATA_TYPE,
 227         __DATA_MAX
 228 };
 229
 230 static const struct blobmsg_policy get_data_policy[] = {
 231         [DATA_NAME] = { "name", BLOBMSG_TYPE_STRING },
 232         [DATA_INSTANCE] = { "instance", BLOBMSG_TYPE_STRING },
 233         [DATA_TYPE] = { "type", BLOBMSG_TYPE_STRING },
 234 };
 235
 236 static int
 237 service_handle_set(struct ubus_context *ctx, struct ubus_object *obj,
 238                    struct ubus_request_data *req, const char *method,
 239                    struct blob_attr *msg)
 240 {
 241         struct blob_attr *tb[__SERVICE_SET_MAX], *cur;
 242         struct service *s = NULL;
 243         const char *name;
 244         bool add = !strcmp(method, "add");
 245         int ret;
 246
 247         blobmsg_parse(service_set_attrs, __SERVICE_SET_MAX, tb, blob_data(msg), blob_len(msg));
 248         cur = tb[SERVICE_ATTR_NAME];
 249         if (!cur)
 250                 return UBUS_STATUS_INVALID_ARGUMENT;
 251
 252         name = blobmsg_data(cur);
 253
 254         s = avl_find_element(&services, name, s, avl);
 255         if (s) {
 256                 DEBUG(2, "Update service %s\n", name);
 257                 return service_update(s, tb, add);
 258         }
 259
 260         DEBUG(2, "Create service %s\n", name);
 261         s = service_alloc(name);
 262         if (!s)
 263                 return UBUS_STATUS_UNKNOWN_ERROR;
 264
 265         ret = service_update(s, tb, add);
 266         if (ret)
 267                 return ret;
 268
 269         avl_insert(&services, &s->avl);
 270
 271         service_event("service.start", s->name, NULL);
 272
 273         return 0;
 274 }
 275
 276 static void
 277 service_dump(struct service *s, bool verbose)
 278 {
 279         struct service_instance *in;
 280         void *c, *i;
 281
 282         c = blobmsg_open_table(&b, s->name);
 283
 284         if (!avl_is_empty(&s->instances.avl)) {
 285                 i = blobmsg_open_table(&b, "instances");
 286                 vlist_for_each_element(&s->instances, in, node)
 287                         instance_dump(&b, in, verbose);
 288                 blobmsg_close_table(&b, i);
 289         }
 290         if (verbose && s->trigger)
 291                 blobmsg_add_blob(&b, s->trigger);
 292         if (verbose && !list_empty(&s->validators))
 293                 service_validate_dump(&b, s);
 294         blobmsg_close_table(&b, c);
 295 }
 296
 297 static int
 298 service_handle_list(struct ubus_context *ctx, struct ubus_object *obj,
 299                     struct ubus_request_data *req, const char *method,
 300                     struct blob_attr *msg)
 301 {
 302         struct blob_attr *tb[__SERVICE_LIST_ATTR_MAX];
 303         struct service *s;
 304         const char *name = NULL;
 305         bool verbose = false;
 306
 307         blobmsg_parse(service_list_attrs, __SERVICE_LIST_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
 308
 309         if (tb[SERVICE_LIST_ATTR_VERBOSE])
 310                 verbose = blobmsg_get_bool(tb[SERVICE_LIST_ATTR_VERBOSE]);
 311         if (tb[SERVICE_LIST_ATTR_NAME])
 312                 name = blobmsg_get_string(tb[SERVICE_LIST_ATTR_NAME]);
 313
 314         blob_buf_init(&b, 0);
 315         avl_for_each_element(&services, s, avl) {
 316                 if (name && strcmp(s->name, name) != 0)
 317                         continue;
 318
 319                 service_dump(s, verbose);
 320         }
 321
 322         ubus_send_reply(ctx, req, b.head);
 323
 324         return 0;
 325 }
 326
 327 static int
 328 service_handle_delete(struct ubus_context *ctx, struct ubus_object *obj,
 329                     struct ubus_request_data *req, const char *method,
 330                     struct blob_attr *msg)
 331 {
 332         struct blob_attr *tb[__SERVICE_DEL_ATTR_MAX], *cur;
 333         struct service *s;
 334         struct service_instance *in;
 335
 336         blobmsg_parse(service_del_attrs, __SERVICE_DEL_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
 337
 338         cur = tb[SERVICE_DEL_ATTR_NAME];
 339         if (!cur)
 340                 return UBUS_STATUS_NOT_FOUND;
 341
 342         s = avl_find_element(&services, blobmsg_data(cur), s, avl);
 343         if (!s)
 344                 return UBUS_STATUS_NOT_FOUND;
 345
 346         cur = tb[SERVICE_DEL_ATTR_INSTANCE];
 347         if (!cur) {
 348                 service_delete(s);
 349                 return 0;
 350         }
 351
 352         in = vlist_find(&s->instances, blobmsg_data(cur), in, node);
 353         if (!in) {
 354                 ERROR("instance %s not found\n", (char *) blobmsg_data(cur));
 355                 return UBUS_STATUS_NOT_FOUND;
 356         }
 357
 358         vlist_delete(&s->instances, &in->node);
 359
 360         return 0;
 361 }
 362
 363 static int
 364 service_handle_kill(struct service_instance *in, int sig)
 365 {
 366         if (kill(in->proc.pid, sig) == 0)
 367                 return 0;
 368
 369         switch (errno) {
 370         case EINVAL: return UBUS_STATUS_INVALID_ARGUMENT;
 371         case EPERM:  return UBUS_STATUS_PERMISSION_DENIED;
 372         case ESRCH:  return UBUS_STATUS_NOT_FOUND;
 373         }
 374
 375         return UBUS_STATUS_UNKNOWN_ERROR;
 376 }
 377
 378 static int
 379 service_handle_signal(struct ubus_context *ctx, struct ubus_object *obj,
 380                     struct ubus_request_data *req, const char *method,
 381                     struct blob_attr *msg)
 382 {
 383         struct blob_attr *tb[__SERVICE_SIGNAL_ATTR_MAX], *cur;
 384         struct service *s;
 385         struct service_instance *in;
 386         int sig = SIGHUP;
 387         int rv = 0;
 388
 389         blobmsg_parse(service_signal_attrs, __SERVICE_SIGNAL_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
 390
 391         cur = tb[SERVICE_SIGNAL_ATTR_SIGNAL];
 392         if (cur)
 393                 sig = blobmsg_get_u32(cur);
 394
 395         cur = tb[SERVICE_SIGNAL_ATTR_NAME];
 396         if (!cur)
 397                 return UBUS_STATUS_NOT_FOUND;
 398
 399         s = avl_find_element(&services, blobmsg_data(cur), s, avl);
 400         if (!s)
 401                 return UBUS_STATUS_NOT_FOUND;
 402
 403         cur = tb[SERVICE_SIGNAL_ATTR_INSTANCE];
 404         if (!cur) {
 405                 vlist_for_each_element(&s->instances, in, node)
 406                         rv = service_handle_kill(in, sig);
 407
 408                 return rv;
 409         }
 410
 411         in = vlist_find(&s->instances, blobmsg_data(cur), in, node);
 412         if (!in) {
 413                 ERROR("instance %s not found\n", blobmsg_get_string(cur));
 414                 return UBUS_STATUS_NOT_FOUND;
 415         }
 416
 417         return service_handle_kill(in, sig);
 418 }
 419
 420 static int
 421 service_handle_update(struct ubus_context *ctx, struct ubus_object *obj,
 422                       struct ubus_request_data *req, const char *method,
 423                       struct blob_attr *msg)
 424 {
 425         struct blob_attr *tb[__SERVICE_ATTR_MAX], *cur;
 426         struct service *s;
 427
 428         blobmsg_parse(service_attrs, __SERVICE_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
 429
 430         cur = tb[SERVICE_SET_NAME];
 431         if (!cur)
 432                 return UBUS_STATUS_INVALID_ARGUMENT;
 433
 434         s = avl_find_element(&services, blobmsg_data(cur), s, avl);
 435         if (!s)
 436                 return UBUS_STATUS_NOT_FOUND;
 437
 438         if (!strcmp(method, "update_start"))
 439                 vlist_update(&s->instances);
 440         else
 441                 vlist_flush(&s->instances);
 442
 443         return 0;
 444 }
 445
 446 static int
 447 service_handle_event(struct ubus_context *ctx, struct ubus_object *obj,
 448                         struct ubus_request_data *req, const char *method,
 449                         struct blob_attr *msg)
 450 {
 451         struct blob_attr *tb[__EVENT_MAX];
 452
 453         if (!msg)
 454                 return UBUS_STATUS_INVALID_ARGUMENT;
 455
 456         blobmsg_parse(event_policy, __EVENT_MAX, tb, blob_data(msg), blob_len(msg));
 457         if (!tb[EVENT_TYPE] || !tb[EVENT_DATA])
 458                 return UBUS_STATUS_INVALID_ARGUMENT;
 459
 460         trigger_event(blobmsg_get_string(tb[EVENT_TYPE]), tb[EVENT_DATA]);
 461
 462         return 0;
 463 }
 464
 465 static int
 466 service_handle_validate(struct ubus_context *ctx, struct ubus_object *obj,
 467                         struct ubus_request_data *req, const char *method,
 468                         struct blob_attr *msg)
 469 {
 470         struct blob_attr *tb[__VALIDATE_MAX];
 471         char *p = NULL, *t = NULL;
 472
 473         if (!msg)
 474                 return UBUS_STATUS_INVALID_ARGUMENT;
 475
 476         blobmsg_parse(validate_policy, __VALIDATE_MAX, tb, blob_data(msg), blob_len(msg));
 477         if (tb[VALIDATE_SERVICE]) {
 478                 return 0;
 479         }
 480         if (tb[VALIDATE_PACKAGE])
 481                 p = blobmsg_get_string(tb[VALIDATE_PACKAGE]);
 482
 483         if (tb[VALIDATE_TYPE])
 484                 t = blobmsg_get_string(tb[VALIDATE_TYPE]);
 485
 486         blob_buf_init(&b, 0);
 487         service_validate_dump_all(&b, p, t);
 488         ubus_send_reply(ctx, req, b.head);
 489
 490         return 0;
 491 }
 492
 493 static int
 494 service_get_data(struct ubus_context *ctx, struct ubus_object *obj,
 495                  struct ubus_request_data *req, const char *method,
 496                  struct blob_attr *msg)
 497 {
 498         struct service_instance *in;
 499         struct service *s;
 500         struct blob_attr *tb[__DATA_MAX];
 501         const char *name = NULL;
 502         const char *instance = NULL;
 503         const char *type = NULL;
 504
 505         blobmsg_parse(get_data_policy, __DATA_MAX, tb, blob_data(msg), blob_len(msg));
 506         if (tb[DATA_NAME])
 507                 name = blobmsg_data(tb[DATA_NAME]);
 508         if (tb[DATA_INSTANCE])
 509                 instance = blobmsg_data(tb[DATA_INSTANCE]);
 510         if (tb[DATA_TYPE])
 511                 type = blobmsg_data(tb[DATA_TYPE]);
 512
 513         blob_buf_init(&b, 0);
 514         avl_for_each_element(&services, s, avl) {
 515                 void *cs = NULL;
 516
 517                 if (name && strcmp(name, s->name))
 518                         continue;
 519
 520                 vlist_for_each_element(&s->instances, in, node) {
 521                         struct blobmsg_list_node *var;
 522                         void *ci = NULL;
 523
 524                         if (instance && strcmp(instance, in->name))
 525                                 continue;
 526
 527                         blobmsg_list_for_each(&in->data, var) {
 528                                 if (type &&
 529                                     strcmp(blobmsg_name(var->data), type))
 530                                         continue;
 531
 532                                 if (!cs)
 533                                         cs = blobmsg_open_table(&b, s->name);
 534                                 if (!ci)
 535                                         ci = blobmsg_open_table(&b, in->name);
 536
 537                                 blobmsg_add_blob(&b, var->data);
 538                         }
 539
 540                         if (ci)
 541                                 blobmsg_close_table(&b, ci);
 542                 }
 543
 544                 if (cs)
 545                         blobmsg_close_table(&b, cs);
 546         }
 547
 548         ubus_send_reply(ctx, req, b.head);
 549         return 0;
 550 }
 551
 552 static struct ubus_method main_object_methods[] = {
 553         UBUS_METHOD("set", service_handle_set, service_set_attrs),
 554         UBUS_METHOD("add", service_handle_set, service_set_attrs),
 555         UBUS_METHOD("list", service_handle_list, service_list_attrs),
 556         UBUS_METHOD("delete", service_handle_delete, service_del_attrs),
 557         UBUS_METHOD("signal", service_handle_signal, service_signal_attrs),
 558         UBUS_METHOD("update_start", service_handle_update, service_attrs),
 559         UBUS_METHOD("update_complete", service_handle_update, service_attrs),
 560         UBUS_METHOD("event", service_handle_event, event_policy),
 561         UBUS_METHOD("validate", service_handle_validate, validate_policy),
 562         UBUS_METHOD("get_data", service_get_data, get_data_policy),
 563 };
 564
 565 static struct ubus_object_type main_object_type =
 566         UBUS_OBJECT_TYPE("service", main_object_methods);
 567
 568 static struct ubus_object main_object = {
 569         .name = "service",
 570         .type = &main_object_type,
 571         .methods = main_object_methods,
 572         .n_methods = ARRAY_SIZE(main_object_methods),
 573 };
 574
 575 int
 576 service_start_early(char *name, char *cmdline)
 577 {
 578         void *instances, *instance, *command, *respawn;
 579         char *t;
 580
 581         blob_buf_init(&b, 0);
 582         blobmsg_add_string(&b, "name", name);
 583         instances = blobmsg_open_table(&b, "instances");
 584         instance = blobmsg_open_table(&b, "instance1");
 585         command = blobmsg_open_array(&b, "command");
 586         t = strtok(cmdline, " ");
 587         while (t) {
 588                 blobmsg_add_string(&b, NULL, t);
 589                 t = strtok(NULL, " ");
 590         }
 591         blobmsg_close_array(&b, command);
 592         respawn = blobmsg_open_array(&b, "respawn");
 593         blobmsg_add_string(&b, NULL, "3600");
 594         blobmsg_add_string(&b, NULL, "1");
 595         blobmsg_add_string(&b, NULL, "0");
 596         blobmsg_close_array(&b, respawn);
 597         blobmsg_close_table(&b, instance);
 598         blobmsg_close_table(&b, instances);
 599
 600         return service_handle_set(NULL, NULL, NULL, "add", b.head);
 601 }
 602
 603 void service_stopped(struct service *s)
 604 {
 605         if (avl_is_empty(&s->instances.avl)) {
 606                 service_event("service.stop", s->name, NULL);
 607                 avl_delete(&services, &s->avl);
 608                 trigger_del(s);
 609                 free(s->trigger);
 610                 free(s);
 611                 service_validate_del(s);
 612         }
 613 }
 614
 615 void service_event(const char *type, const char *service, const char *instance)
 616 {
 617         if (!ctx)
 618                 return;
 619
 620         blob_buf_init(&b, 0);
 621         blobmsg_add_string(&b, "service", service);
 622         if (instance)
 623                 blobmsg_add_string(&b, "instance", instance);
 624         ubus_notify(ctx, &main_object, type, b.head, -1);
 625 }
 626
 627 void ubus_init_service(struct ubus_context *_ctx)
 628 {
 629         ctx = _ctx;
 630         ubus_add_object(ctx, &main_object);
 631 }