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, true);
  64         } else if (in_n && in_n->srv->autostart) {
  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_AUTOSTART,
  97         __SERVICE_SET_MAX
  98 };
  99
 100 static const struct blobmsg_policy service_set_attrs[__SERVICE_SET_MAX] = {
 101         [SERVICE_SET_NAME] = { "name", BLOBMSG_TYPE_STRING },
 102         [SERVICE_SET_SCRIPT] = { "script", BLOBMSG_TYPE_STRING },
 103         [SERVICE_SET_INSTANCES] = { "instances", BLOBMSG_TYPE_TABLE },
 104         [SERVICE_SET_TRIGGER] = { "triggers", BLOBMSG_TYPE_ARRAY },
 105         [SERVICE_SET_VALIDATE] = { "validate", BLOBMSG_TYPE_ARRAY },
 106         [SERVICE_SET_AUTOSTART] = { "autostart", BLOBMSG_TYPE_BOOL },
 107 };
 108
 109 static int
 110 service_update(struct service *s, struct blob_attr **tb, bool add)
 111 {
 112         struct blob_attr *cur;
 113         int rem;
 114
 115         if (s->trigger) {
 116                 trigger_del(s);
 117                 free(s->trigger);
 118                 s->trigger = NULL;
 119         }
 120
 121         service_validate_del(s);
 122
 123         if (tb[SERVICE_SET_AUTOSTART] && !blobmsg_get_bool(tb[SERVICE_SET_AUTOSTART]))
 124                 s->autostart = false;
 125         else
 126                 s->autostart = true;
 127
 128         if (tb[SERVICE_SET_TRIGGER] && blobmsg_data_len(tb[SERVICE_SET_TRIGGER])) {
 129                 s->trigger = blob_memdup(tb[SERVICE_SET_TRIGGER]);
 130                 if (!s->trigger)
 131                         return -1;
 132                 trigger_add(s->trigger, s);
 133         }
 134
 135         if (tb[SERVICE_SET_VALIDATE] && blobmsg_data_len(tb[SERVICE_SET_VALIDATE])) {
 136                 blobmsg_for_each_attr(cur, tb[SERVICE_SET_VALIDATE], rem)
 137                         service_validate_add(s, cur);
 138         }
 139
 140         if (tb[SERVICE_SET_INSTANCES]) {
 141                 if (!add)
 142                         vlist_update(&s->instances);
 143                 blobmsg_for_each_attr(cur, tb[SERVICE_SET_INSTANCES], rem) {
 144                         service_instance_add(s, cur);
 145                 }
 146                 if (!add)
 147                         vlist_flush(&s->instances);
 148         }
 149
 150         s->deleted = false;
 151
 152         rc(s->name, "running");
 153
 154         return 0;
 155 }
 156
 157 static void
 158 service_delete(struct service *s)
 159 {
 160         vlist_flush_all(&s->instances);
 161         s->deleted = true;
 162         service_stopped(s);
 163 }
 164
 165 enum {
 166         SERVICE_ATTR_NAME,
 167         __SERVICE_ATTR_MAX,
 168 };
 169
 170 static const struct blobmsg_policy service_attrs[__SERVICE_ATTR_MAX] = {
 171         [SERVICE_ATTR_NAME] = { "name", BLOBMSG_TYPE_STRING },
 172 };
 173
 174 enum {
 175         SERVICE_DEL_ATTR_NAME,
 176         SERVICE_DEL_ATTR_INSTANCE,
 177         __SERVICE_DEL_ATTR_MAX,
 178 };
 179
 180 static const struct blobmsg_policy service_del_attrs[__SERVICE_DEL_ATTR_MAX] = {
 181         [SERVICE_DEL_ATTR_NAME] = { "name", BLOBMSG_TYPE_STRING },
 182         [SERVICE_DEL_ATTR_INSTANCE] = { "instance", BLOBMSG_TYPE_STRING },
 183 };
 184
 185 enum {
 186         SERVICE_LIST_ATTR_NAME,
 187         SERVICE_LIST_ATTR_VERBOSE,
 188         __SERVICE_LIST_ATTR_MAX,
 189 };
 190
 191 static const struct blobmsg_policy service_list_attrs[__SERVICE_LIST_ATTR_MAX] = {
 192         [SERVICE_LIST_ATTR_NAME] = { "name", BLOBMSG_TYPE_STRING },
 193         [SERVICE_LIST_ATTR_VERBOSE] = { "verbose", BLOBMSG_TYPE_BOOL },
 194 };
 195
 196 enum {
 197         SERVICE_SIGNAL_ATTR_NAME,
 198         SERVICE_SIGNAL_ATTR_INSTANCE,
 199         SERVICE_SIGNAL_ATTR_SIGNAL,
 200         __SERVICE_SIGNAL_ATTR_MAX,
 201 };
 202
 203 static const struct blobmsg_policy service_signal_attrs[__SERVICE_SIGNAL_ATTR_MAX] = {
 204         [SERVICE_SIGNAL_ATTR_NAME] = { "name", BLOBMSG_TYPE_STRING },
 205         [SERVICE_SIGNAL_ATTR_INSTANCE] = { "instance", BLOBMSG_TYPE_STRING },
 206         [SERVICE_SIGNAL_ATTR_SIGNAL] = { "signal", BLOBMSG_TYPE_INT32 },
 207 };
 208
 209 enum {
 210         SERVICE_STATE_ATTR_SPAWN,
 211         SERVICE_STATE_ATTR_NAME,
 212         __SERVICE_STATE_ATTR_MAX,
 213 };
 214
 215 static const struct blobmsg_policy service_state_attrs[__SERVICE_STATE_ATTR_MAX] = {
 216         [SERVICE_STATE_ATTR_SPAWN] = { "spawn", BLOBMSG_TYPE_BOOL },
 217         [SERVICE_STATE_ATTR_NAME] = { "name", BLOBMSG_TYPE_STRING },
 218 };
 219
 220 enum {
 221         EVENT_TYPE,
 222         EVENT_DATA,
 223         __EVENT_MAX
 224 };
 225
 226 static const struct blobmsg_policy event_policy[__EVENT_MAX] = {
 227         [EVENT_TYPE] = { .name = "type", .type = BLOBMSG_TYPE_STRING },
 228         [EVENT_DATA] = { .name = "data", .type = BLOBMSG_TYPE_TABLE },
 229 };
 230
 231 enum {
 232         VALIDATE_PACKAGE,
 233         VALIDATE_TYPE,
 234         VALIDATE_SERVICE,
 235         __VALIDATE_MAX
 236 };
 237
 238 static const struct blobmsg_policy validate_policy[__VALIDATE_MAX] = {
 239         [VALIDATE_PACKAGE] = { .name = "package", .type = BLOBMSG_TYPE_STRING },
 240         [VALIDATE_TYPE] = { .name = "type", .type = BLOBMSG_TYPE_STRING },
 241         [VALIDATE_SERVICE] = { .name = "service", .type = BLOBMSG_TYPE_STRING },
 242 };
 243
 244 enum {
 245         DATA_NAME,
 246         DATA_INSTANCE,
 247         DATA_TYPE,
 248         __DATA_MAX
 249 };
 250
 251 static const struct blobmsg_policy get_data_policy[] = {
 252         [DATA_NAME] = { "name", BLOBMSG_TYPE_STRING },
 253         [DATA_INSTANCE] = { "instance", BLOBMSG_TYPE_STRING },
 254         [DATA_TYPE] = { "type", BLOBMSG_TYPE_STRING },
 255 };
 256
 257 static int
 258 service_handle_set(struct ubus_context *ctx, struct ubus_object *obj,
 259                    struct ubus_request_data *req, const char *method,
 260                    struct blob_attr *msg)
 261 {
 262         struct blob_attr *tb[__SERVICE_SET_MAX], *cur;
 263         struct service *s = NULL;
 264         const char *name;
 265         bool add = !strcmp(method, "add");
 266         int ret;
 267
 268         blobmsg_parse(service_set_attrs, __SERVICE_SET_MAX, tb, blob_data(msg), blob_len(msg));
 269         cur = tb[SERVICE_ATTR_NAME];
 270         if (!cur)
 271                 return UBUS_STATUS_INVALID_ARGUMENT;
 272
 273         name = blobmsg_data(cur);
 274
 275         s = avl_find_element(&services, name, s, avl);
 276         if (s) {
 277                 DEBUG(2, "Update service %s\n", name);
 278                 return service_update(s, tb, add);
 279         }
 280
 281         DEBUG(2, "Create service %s\n", name);
 282         s = service_alloc(name);
 283         if (!s)
 284                 return UBUS_STATUS_UNKNOWN_ERROR;
 285
 286         ret = service_update(s, tb, add);
 287         if (ret)
 288                 return ret;
 289
 290         avl_insert(&services, &s->avl);
 291
 292         service_event("service.start", s->name, NULL);
 293
 294         return 0;
 295 }
 296
 297 static void
 298 service_dump(struct service *s, bool verbose)
 299 {
 300         struct service_instance *in;
 301         void *c, *i;
 302
 303         c = blobmsg_open_table(&b, s->name);
 304
 305         if (!s->autostart)
 306                 blobmsg_add_u8(&b, "autostart", false);
 307
 308         if (!avl_is_empty(&s->instances.avl)) {
 309                 i = blobmsg_open_table(&b, "instances");
 310                 vlist_for_each_element(&s->instances, in, node)
 311                         instance_dump(&b, in, verbose);
 312                 blobmsg_close_table(&b, i);
 313         }
 314         if (verbose && s->trigger)
 315                 blobmsg_add_blob(&b, s->trigger);
 316         if (verbose && !list_empty(&s->validators))
 317                 service_validate_dump(&b, s);
 318         blobmsg_close_table(&b, c);
 319 }
 320
 321 static int
 322 service_handle_list(struct ubus_context *ctx, struct ubus_object *obj,
 323                     struct ubus_request_data *req, const char *method,
 324                     struct blob_attr *msg)
 325 {
 326         struct blob_attr *tb[__SERVICE_LIST_ATTR_MAX];
 327         struct service *s;
 328         const char *name = NULL;
 329         bool verbose = false;
 330
 331         blobmsg_parse(service_list_attrs, __SERVICE_LIST_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
 332
 333         if (tb[SERVICE_LIST_ATTR_VERBOSE])
 334                 verbose = blobmsg_get_bool(tb[SERVICE_LIST_ATTR_VERBOSE]);
 335         if (tb[SERVICE_LIST_ATTR_NAME])
 336                 name = blobmsg_get_string(tb[SERVICE_LIST_ATTR_NAME]);
 337
 338         blob_buf_init(&b, 0);
 339         avl_for_each_element(&services, s, avl) {
 340                 if (name && strcmp(s->name, name) != 0)
 341                         continue;
 342
 343                 service_dump(s, verbose);
 344         }
 345
 346         ubus_send_reply(ctx, req, b.head);
 347
 348         return 0;
 349 }
 350
 351 static int
 352 service_handle_delete(struct ubus_context *ctx, struct ubus_object *obj,
 353                     struct ubus_request_data *req, const char *method,
 354                     struct blob_attr *msg)
 355 {
 356         struct blob_attr *tb[__SERVICE_DEL_ATTR_MAX], *cur;
 357         struct service *s;
 358         struct service_instance *in;
 359
 360         blobmsg_parse(service_del_attrs, __SERVICE_DEL_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
 361
 362         cur = tb[SERVICE_DEL_ATTR_NAME];
 363         if (!cur)
 364                 return UBUS_STATUS_NOT_FOUND;
 365
 366         s = avl_find_element(&services, blobmsg_data(cur), s, avl);
 367         if (!s)
 368                 return UBUS_STATUS_NOT_FOUND;
 369
 370         cur = tb[SERVICE_DEL_ATTR_INSTANCE];
 371         if (!cur) {
 372                 service_delete(s);
 373                 return 0;
 374         }
 375
 376         in = vlist_find(&s->instances, blobmsg_data(cur), in, node);
 377         if (!in) {
 378                 ERROR("instance %s not found\n", (char *) blobmsg_data(cur));
 379                 return UBUS_STATUS_NOT_FOUND;
 380         }
 381
 382         vlist_delete(&s->instances, &in->node);
 383
 384         return 0;
 385 }
 386
 387 static int
 388 service_handle_kill(struct service_instance *in, int sig)
 389 {
 390         if (kill(in->proc.pid, sig) == 0)
 391                 return 0;
 392
 393         switch (errno) {
 394         case EINVAL: return UBUS_STATUS_INVALID_ARGUMENT;
 395         case EPERM:  return UBUS_STATUS_PERMISSION_DENIED;
 396         case ESRCH:  return UBUS_STATUS_NOT_FOUND;
 397         }
 398
 399         return UBUS_STATUS_UNKNOWN_ERROR;
 400 }
 401
 402 static int
 403 service_handle_signal(struct ubus_context *ctx, struct ubus_object *obj,
 404                     struct ubus_request_data *req, const char *method,
 405                     struct blob_attr *msg)
 406 {
 407         struct blob_attr *tb[__SERVICE_SIGNAL_ATTR_MAX], *cur;
 408         struct service *s;
 409         struct service_instance *in;
 410         int sig = SIGHUP;
 411         int rv = 0;
 412
 413         blobmsg_parse(service_signal_attrs, __SERVICE_SIGNAL_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
 414
 415         cur = tb[SERVICE_SIGNAL_ATTR_SIGNAL];
 416         if (cur)
 417                 sig = blobmsg_get_u32(cur);
 418
 419         cur = tb[SERVICE_SIGNAL_ATTR_NAME];
 420         if (!cur)
 421                 return UBUS_STATUS_NOT_FOUND;
 422
 423         s = avl_find_element(&services, blobmsg_data(cur), s, avl);
 424         if (!s)
 425                 return UBUS_STATUS_NOT_FOUND;
 426
 427         cur = tb[SERVICE_SIGNAL_ATTR_INSTANCE];
 428         if (!cur) {
 429                 vlist_for_each_element(&s->instances, in, node)
 430                         rv = service_handle_kill(in, sig);
 431
 432                 return rv;
 433         }
 434
 435         in = vlist_find(&s->instances, blobmsg_data(cur), in, node);
 436         if (!in) {
 437                 ERROR("instance %s not found\n", blobmsg_get_string(cur));
 438                 return UBUS_STATUS_NOT_FOUND;
 439         }
 440
 441         return service_handle_kill(in, sig);
 442 }
 443
 444 static int
 445 service_handle_state(struct ubus_context *ctx, struct ubus_object *obj,
 446                      struct ubus_request_data *req, const char *method,
 447                      struct blob_attr *msg)
 448 {
 449         struct blob_attr *tb[__SERVICE_STATE_ATTR_MAX];
 450         struct service *s;
 451         struct service_instance *in;
 452         int spawn;
 453
 454         blobmsg_parse(service_state_attrs, __SERVICE_STATE_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
 455
 456         if (!tb[SERVICE_STATE_ATTR_SPAWN])
 457                 return UBUS_STATUS_INVALID_ARGUMENT;
 458
 459         if (!tb[SERVICE_STATE_ATTR_NAME])
 460                 return UBUS_STATUS_NOT_FOUND;
 461
 462         s = avl_find_element(&services, blobmsg_data(tb[SERVICE_STATE_ATTR_NAME]), s, avl);
 463         if (!s)
 464                 return UBUS_STATUS_NOT_FOUND;
 465
 466         spawn = !!blobmsg_get_u8(tb[SERVICE_STATE_ATTR_SPAWN]);
 467         vlist_for_each_element(&s->instances, in, node) {
 468                 if (!!in->proc.pending == !!spawn)
 469                         continue;
 470                 else if (!in->proc.pending)
 471                         instance_start(in);
 472                 else
 473                         instance_stop(in, false);
 474         }
 475
 476         return UBUS_STATUS_OK;
 477 }
 478
 479 static int
 480 service_handle_update(struct ubus_context *ctx, struct ubus_object *obj,
 481                       struct ubus_request_data *req, const char *method,
 482                       struct blob_attr *msg)
 483 {
 484         struct blob_attr *tb[__SERVICE_ATTR_MAX], *cur;
 485         struct service *s;
 486
 487         blobmsg_parse(service_attrs, __SERVICE_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
 488
 489         cur = tb[SERVICE_SET_NAME];
 490         if (!cur)
 491                 return UBUS_STATUS_INVALID_ARGUMENT;
 492
 493         s = avl_find_element(&services, blobmsg_data(cur), s, avl);
 494         if (!s)
 495                 return UBUS_STATUS_NOT_FOUND;
 496
 497         if (!strcmp(method, "update_start"))
 498                 vlist_update(&s->instances);
 499         else
 500                 vlist_flush(&s->instances);
 501
 502         return 0;
 503 }
 504
 505 static int
 506 service_handle_event(struct ubus_context *ctx, struct ubus_object *obj,
 507                         struct ubus_request_data *req, const char *method,
 508                         struct blob_attr *msg)
 509 {
 510         struct blob_attr *tb[__EVENT_MAX];
 511
 512         if (!msg)
 513                 return UBUS_STATUS_INVALID_ARGUMENT;
 514
 515         blobmsg_parse(event_policy, __EVENT_MAX, tb, blob_data(msg), blob_len(msg));
 516         if (!tb[EVENT_TYPE] || !tb[EVENT_DATA])
 517                 return UBUS_STATUS_INVALID_ARGUMENT;
 518
 519         trigger_event(blobmsg_get_string(tb[EVENT_TYPE]), tb[EVENT_DATA]);
 520
 521         return 0;
 522 }
 523
 524 static int
 525 service_handle_validate(struct ubus_context *ctx, struct ubus_object *obj,
 526                         struct ubus_request_data *req, const char *method,
 527                         struct blob_attr *msg)
 528 {
 529         struct blob_attr *tb[__VALIDATE_MAX];
 530         char *p = NULL, *t = NULL;
 531
 532         if (!msg)
 533                 return UBUS_STATUS_INVALID_ARGUMENT;
 534
 535         blobmsg_parse(validate_policy, __VALIDATE_MAX, tb, blob_data(msg), blob_len(msg));
 536         if (tb[VALIDATE_SERVICE]) {
 537                 return 0;
 538         }
 539         if (tb[VALIDATE_PACKAGE])
 540                 p = blobmsg_get_string(tb[VALIDATE_PACKAGE]);
 541
 542         if (tb[VALIDATE_TYPE])
 543                 t = blobmsg_get_string(tb[VALIDATE_TYPE]);
 544
 545         blob_buf_init(&b, 0);
 546         service_validate_dump_all(&b, p, t);
 547         ubus_send_reply(ctx, req, b.head);
 548
 549         return 0;
 550 }
 551
 552 static int
 553 service_get_data(struct ubus_context *ctx, struct ubus_object *obj,
 554                  struct ubus_request_data *req, const char *method,
 555                  struct blob_attr *msg)
 556 {
 557         struct service_instance *in;
 558         struct service *s;
 559         struct blob_attr *tb[__DATA_MAX];
 560         const char *name = NULL;
 561         const char *instance = NULL;
 562         const char *type = NULL;
 563
 564         blobmsg_parse(get_data_policy, __DATA_MAX, tb, blob_data(msg), blob_len(msg));
 565         if (tb[DATA_NAME])
 566                 name = blobmsg_data(tb[DATA_NAME]);
 567         if (tb[DATA_INSTANCE])
 568                 instance = blobmsg_data(tb[DATA_INSTANCE]);
 569         if (tb[DATA_TYPE])
 570                 type = blobmsg_data(tb[DATA_TYPE]);
 571
 572         blob_buf_init(&b, 0);
 573         avl_for_each_element(&services, s, avl) {
 574                 void *cs = NULL;
 575
 576                 if (name && strcmp(name, s->name))
 577                         continue;
 578
 579                 vlist_for_each_element(&s->instances, in, node) {
 580                         struct blobmsg_list_node *var;
 581                         void *ci = NULL;
 582
 583                         if (instance && strcmp(instance, in->name))
 584                                 continue;
 585
 586                         blobmsg_list_for_each(&in->data, var) {
 587                                 if (type &&
 588                                     strcmp(blobmsg_name(var->data), type))
 589                                         continue;
 590
 591                                 if (!cs)
 592                                         cs = blobmsg_open_table(&b, s->name);
 593                                 if (!ci)
 594                                         ci = blobmsg_open_table(&b, in->name);
 595
 596                                 blobmsg_add_blob(&b, var->data);
 597                         }
 598
 599                         if (ci)
 600                                 blobmsg_close_table(&b, ci);
 601                 }
 602
 603                 if (cs)
 604                         blobmsg_close_table(&b, cs);
 605         }
 606
 607         ubus_send_reply(ctx, req, b.head);
 608         return 0;
 609 }
 610
 611 static struct ubus_method main_object_methods[] = {
 612         UBUS_METHOD("set", service_handle_set, service_set_attrs),
 613         UBUS_METHOD("add", service_handle_set, service_set_attrs),
 614         UBUS_METHOD("list", service_handle_list, service_list_attrs),
 615         UBUS_METHOD("delete", service_handle_delete, service_del_attrs),
 616         UBUS_METHOD("signal", service_handle_signal, service_signal_attrs),
 617         UBUS_METHOD("update_start", service_handle_update, service_attrs),
 618         UBUS_METHOD("update_complete", service_handle_update, service_attrs),
 619         UBUS_METHOD("event", service_handle_event, event_policy),
 620         UBUS_METHOD("validate", service_handle_validate, validate_policy),
 621         UBUS_METHOD("get_data", service_get_data, get_data_policy),
 622         UBUS_METHOD("state", service_handle_state, service_state_attrs),
 623 };
 624
 625 static struct ubus_object_type main_object_type =
 626         UBUS_OBJECT_TYPE("service", main_object_methods);
 627
 628 static struct ubus_object main_object = {
 629         .name = "service",
 630         .type = &main_object_type,
 631         .methods = main_object_methods,
 632         .n_methods = ARRAY_SIZE(main_object_methods),
 633 };
 634
 635 int
 636 service_start_early(char *name, char *cmdline)
 637 {
 638         void *instances, *instance, *command, *respawn;
 639         char *t;
 640
 641         blob_buf_init(&b, 0);
 642         blobmsg_add_string(&b, "name", name);
 643         instances = blobmsg_open_table(&b, "instances");
 644         instance = blobmsg_open_table(&b, "instance1");
 645         command = blobmsg_open_array(&b, "command");
 646         t = strtok(cmdline, " ");
 647         while (t) {
 648                 blobmsg_add_string(&b, NULL, t);
 649                 t = strtok(NULL, " ");
 650         }
 651         blobmsg_close_array(&b, command);
 652         respawn = blobmsg_open_array(&b, "respawn");
 653         blobmsg_add_string(&b, NULL, "3600");
 654         blobmsg_add_string(&b, NULL, "1");
 655         blobmsg_add_string(&b, NULL, "0");
 656         blobmsg_close_array(&b, respawn);
 657         blobmsg_close_table(&b, instance);
 658         blobmsg_close_table(&b, instances);
 659
 660         return service_handle_set(NULL, NULL, NULL, "add", b.head);
 661 }
 662
 663 void service_stopped(struct service *s)
 664 {
 665         if (s->deleted && avl_is_empty(&s->instances.avl)) {
 666                 service_event("service.stop", s->name, NULL);
 667                 avl_delete(&services, &s->avl);
 668                 trigger_del(s);
 669                 service_validate_del(s);
 670                 free(s->trigger);
 671                 free(s);
 672         }
 673 }
 674
 675 void service_event(const char *type, const char *service, const char *instance)
 676 {
 677         if (!ctx)
 678                 return;
 679
 680         blob_buf_init(&b, 0);
 681         blobmsg_add_string(&b, "service", service);
 682         if (instance)
 683                 blobmsg_add_string(&b, "instance", instance);
 684         ubus_notify(ctx, &main_object, type, b.head, -1);
 685 }
 686
 687 void ubus_init_service(struct ubus_context *_ctx)
 688 {
 689         ctx = _ctx;
 690         ubus_add_object(ctx, &main_object);
 691 }