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 static struct ubus_object main_object;
  29
  30 static void
  31 service_instance_add(struct service *s, struct blob_attr *attr)
  32 {
  33         struct service_instance *in;
  34
  35         if (blobmsg_type(attr) != BLOBMSG_TYPE_TABLE)
  36                 return;
  37
  38         in = calloc(1, sizeof(*in));
  39         if (!in)
  40                 return;
  41
  42         instance_init(in, s, attr);
  43         vlist_add(&s->instances, &in->node, (void *) in->name);
  44 }
  45
  46 static void
  47 service_instance_update(struct vlist_tree *tree, struct vlist_node *node_new,
  48                         struct vlist_node *node_old)
  49 {
  50         struct service_instance *in_o = NULL, *in_n = NULL;
  51
  52         if (node_old)
  53                 in_o = container_of(node_old, struct service_instance, node);
  54
  55         if (node_new)
  56                 in_n = container_of(node_new, struct service_instance, node);
  57
  58         if (in_o && in_n) {
  59                 DEBUG(2, "Update instance %s::%s\n", in_o->srv->name, in_o->name);
  60                 instance_update(in_o, in_n);
  61                 instance_free(in_n);
  62         } else if (in_o) {
  63                 DEBUG(2, "Stop instance %s::%s\n", in_o->srv->name, in_o->name);
  64                 instance_stop(in_o, true);
  65         } else if (in_n && in_n->srv->autostart) {
  66                 DEBUG(2, "Start instance %s::%s\n", in_n->srv->name, in_n->name);
  67                 instance_start(in_n);
  68         }
  69         blob_buf_init(&b, 0);
  70         trigger_event("instance.update", b.head);
  71 }
  72
  73 static struct service *
  74 service_alloc(const char *name)
  75 {
  76         struct service *s;
  77         char *new_name;
  78
  79         s = calloc_a(sizeof(*s), &new_name, strlen(name) + 1);
  80         strcpy(new_name, name);
  81
  82         vlist_init(&s->instances, avl_strcmp, service_instance_update);
  83         s->instances.no_delete = true;
  84         s->name = new_name;
  85         s->avl.key = s->name;
  86         INIT_LIST_HEAD(&s->validators);
  87
  88         return s;
  89 }
  90
  91 enum {
  92         SERVICE_SET_NAME,
  93         SERVICE_SET_SCRIPT,
  94         SERVICE_SET_INSTANCES,
  95         SERVICE_SET_TRIGGER,
  96         SERVICE_SET_VALIDATE,
  97         SERVICE_SET_AUTOSTART,
  98         __SERVICE_SET_MAX
  99 };
 100
 101 static const struct blobmsg_policy service_set_attrs[__SERVICE_SET_MAX] = {
 102         [SERVICE_SET_NAME] = { "name", BLOBMSG_TYPE_STRING },
 103         [SERVICE_SET_SCRIPT] = { "script", BLOBMSG_TYPE_STRING },
 104         [SERVICE_SET_INSTANCES] = { "instances", BLOBMSG_TYPE_TABLE },
 105         [SERVICE_SET_TRIGGER] = { "triggers", BLOBMSG_TYPE_ARRAY },
 106         [SERVICE_SET_VALIDATE] = { "validate", BLOBMSG_TYPE_ARRAY },
 107         [SERVICE_SET_AUTOSTART] = { "autostart", BLOBMSG_TYPE_BOOL },
 108 };
 109
 110 static int
 111 service_update(struct service *s, struct blob_attr **tb, bool add)
 112 {
 113         struct blob_attr *cur;
 114         int rem;
 115
 116         if (s->trigger) {
 117                 trigger_del(s);
 118                 free(s->trigger);
 119                 s->trigger = NULL;
 120         }
 121
 122         service_validate_del(s);
 123
 124         if (tb[SERVICE_SET_AUTOSTART] && !blobmsg_get_bool(tb[SERVICE_SET_AUTOSTART]))
 125                 s->autostart = false;
 126         else
 127                 s->autostart = true;
 128
 129         if (tb[SERVICE_SET_TRIGGER] && blobmsg_data_len(tb[SERVICE_SET_TRIGGER])) {
 130                 s->trigger = blob_memdup(tb[SERVICE_SET_TRIGGER]);
 131                 if (!s->trigger)
 132                         return -1;
 133                 trigger_add(s->trigger, s);
 134         }
 135
 136         if (tb[SERVICE_SET_VALIDATE] && blobmsg_data_len(tb[SERVICE_SET_VALIDATE])) {
 137                 blobmsg_for_each_attr(cur, tb[SERVICE_SET_VALIDATE], rem)
 138                         service_validate_add(s, cur);
 139         }
 140
 141         if (tb[SERVICE_SET_INSTANCES]) {
 142                 if (!add)
 143                         vlist_update(&s->instances);
 144                 blobmsg_for_each_attr(cur, tb[SERVICE_SET_INSTANCES], rem) {
 145                         service_instance_add(s, cur);
 146                 }
 147                 if (!add)
 148                         vlist_flush(&s->instances);
 149         }
 150
 151         s->deleted = false;
 152
 153         rc(s->name, "running");
 154
 155         return 0;
 156 }
 157
 158 static void
 159 service_delete(struct service *s)
 160 {
 161         vlist_flush_all(&s->instances);
 162         s->deleted = true;
 163         service_stopped(s);
 164 }
 165
 166 enum {
 167         SERVICE_ATTR_NAME,
 168         __SERVICE_ATTR_MAX,
 169 };
 170
 171 static const struct blobmsg_policy service_attrs[__SERVICE_ATTR_MAX] = {
 172         [SERVICE_ATTR_NAME] = { "name", BLOBMSG_TYPE_STRING },
 173 };
 174
 175 enum {
 176         SERVICE_DEL_ATTR_NAME,
 177         SERVICE_DEL_ATTR_INSTANCE,
 178         __SERVICE_DEL_ATTR_MAX,
 179 };
 180
 181 static const struct blobmsg_policy service_del_attrs[__SERVICE_DEL_ATTR_MAX] = {
 182         [SERVICE_DEL_ATTR_NAME] = { "name", BLOBMSG_TYPE_STRING },
 183         [SERVICE_DEL_ATTR_INSTANCE] = { "instance", BLOBMSG_TYPE_STRING },
 184 };
 185
 186 enum {
 187         SERVICE_LIST_ATTR_NAME,
 188         SERVICE_LIST_ATTR_VERBOSE,
 189         __SERVICE_LIST_ATTR_MAX,
 190 };
 191
 192 static const struct blobmsg_policy service_list_attrs[__SERVICE_LIST_ATTR_MAX] = {
 193         [SERVICE_LIST_ATTR_NAME] = { "name", BLOBMSG_TYPE_STRING },
 194         [SERVICE_LIST_ATTR_VERBOSE] = { "verbose", BLOBMSG_TYPE_BOOL },
 195 };
 196
 197 enum {
 198         SERVICE_SIGNAL_ATTR_NAME,
 199         SERVICE_SIGNAL_ATTR_INSTANCE,
 200         SERVICE_SIGNAL_ATTR_SIGNAL,
 201         __SERVICE_SIGNAL_ATTR_MAX,
 202 };
 203
 204 static const struct blobmsg_policy service_signal_attrs[__SERVICE_SIGNAL_ATTR_MAX] = {
 205         [SERVICE_SIGNAL_ATTR_NAME] = { "name", BLOBMSG_TYPE_STRING },
 206         [SERVICE_SIGNAL_ATTR_INSTANCE] = { "instance", BLOBMSG_TYPE_STRING },
 207         [SERVICE_SIGNAL_ATTR_SIGNAL] = { "signal", BLOBMSG_TYPE_INT32 },
 208 };
 209
 210 enum {
 211         SERVICE_STATE_ATTR_SPAWN,
 212         SERVICE_STATE_ATTR_NAME,
 213         __SERVICE_STATE_ATTR_MAX,
 214 };
 215
 216 static const struct blobmsg_policy service_state_attrs[__SERVICE_STATE_ATTR_MAX] = {
 217         [SERVICE_STATE_ATTR_SPAWN] = { "spawn", BLOBMSG_TYPE_BOOL },
 218         [SERVICE_STATE_ATTR_NAME] = { "name", BLOBMSG_TYPE_STRING },
 219 };
 220
 221 enum {
 222         EVENT_TYPE,
 223         EVENT_DATA,
 224         __EVENT_MAX
 225 };
 226
 227 static const struct blobmsg_policy event_policy[__EVENT_MAX] = {
 228         [EVENT_TYPE] = { .name = "type", .type = BLOBMSG_TYPE_STRING },
 229         [EVENT_DATA] = { .name = "data", .type = BLOBMSG_TYPE_TABLE },
 230 };
 231
 232 enum {
 233         VALIDATE_PACKAGE,
 234         VALIDATE_TYPE,
 235         VALIDATE_SERVICE,
 236         __VALIDATE_MAX
 237 };
 238
 239 static const struct blobmsg_policy validate_policy[__VALIDATE_MAX] = {
 240         [VALIDATE_PACKAGE] = { .name = "package", .type = BLOBMSG_TYPE_STRING },
 241         [VALIDATE_TYPE] = { .name = "type", .type = BLOBMSG_TYPE_STRING },
 242         [VALIDATE_SERVICE] = { .name = "service", .type = BLOBMSG_TYPE_STRING },
 243 };
 244
 245 enum {
 246         DATA_NAME,
 247         DATA_INSTANCE,
 248         DATA_TYPE,
 249         __DATA_MAX
 250 };
 251
 252 static const struct blobmsg_policy get_data_policy[] = {
 253         [DATA_NAME] = { "name", BLOBMSG_TYPE_STRING },
 254         [DATA_INSTANCE] = { "instance", BLOBMSG_TYPE_STRING },
 255         [DATA_TYPE] = { "type", BLOBMSG_TYPE_STRING },
 256 };
 257
 258 static int
 259 service_handle_set(struct ubus_context *ctx, struct ubus_object *obj,
 260                    struct ubus_request_data *req, const char *method,
 261                    struct blob_attr *msg)
 262 {
 263         struct blob_attr *tb[__SERVICE_SET_MAX], *cur;
 264         struct service *s = NULL;
 265         const char *name;
 266         bool add = !strcmp(method, "add");
 267         int ret;
 268
 269         blobmsg_parse(service_set_attrs, __SERVICE_SET_MAX, tb, blob_data(msg), blob_len(msg));
 270         cur = tb[SERVICE_SET_NAME];
 271         if (!cur)
 272                 return UBUS_STATUS_INVALID_ARGUMENT;
 273
 274         name = blobmsg_data(cur);
 275
 276         s = avl_find_element(&services, name, s, avl);
 277         if (s) {
 278                 DEBUG(2, "Update service %s\n", name);
 279                 return service_update(s, tb, add);
 280         }
 281
 282         DEBUG(2, "Create service %s\n", name);
 283         s = service_alloc(name);
 284         if (!s)
 285                 return UBUS_STATUS_UNKNOWN_ERROR;
 286
 287         ret = service_update(s, tb, add);
 288         if (ret)
 289                 return ret;
 290
 291         avl_insert(&services, &s->avl);
 292
 293         service_event("service.start", s->name, NULL);
 294
 295         return 0;
 296 }
 297
 298 static void
 299 service_dump(struct service *s, bool verbose)
 300 {
 301         struct service_instance *in;
 302         void *c, *i;
 303
 304         c = blobmsg_open_table(&b, s->name);
 305
 306         if (!s->autostart)
 307                 blobmsg_add_u8(&b, "autostart", false);
 308
 309         if (!avl_is_empty(&s->instances.avl)) {
 310                 i = blobmsg_open_table(&b, "instances");
 311                 vlist_for_each_element(&s->instances, in, node)
 312                         instance_dump(&b, in, verbose);
 313                 blobmsg_close_table(&b, i);
 314         }
 315         if (verbose && s->trigger)
 316                 blobmsg_add_blob(&b, s->trigger);
 317         if (verbose && !list_empty(&s->validators))
 318                 service_validate_dump(&b, s);
 319         blobmsg_close_table(&b, c);
 320 }
 321
 322 static int
 323 service_handle_list(struct ubus_context *ctx, struct ubus_object *obj,
 324                     struct ubus_request_data *req, const char *method,
 325                     struct blob_attr *msg)
 326 {
 327         struct blob_attr *tb[__SERVICE_LIST_ATTR_MAX];
 328         struct service *s;
 329         const char *name = NULL;
 330         bool verbose = false;
 331
 332         blobmsg_parse(service_list_attrs, __SERVICE_LIST_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
 333
 334         if (tb[SERVICE_LIST_ATTR_VERBOSE])
 335                 verbose = blobmsg_get_bool(tb[SERVICE_LIST_ATTR_VERBOSE]);
 336         if (tb[SERVICE_LIST_ATTR_NAME])
 337                 name = blobmsg_get_string(tb[SERVICE_LIST_ATTR_NAME]);
 338
 339         blob_buf_init(&b, 0);
 340         avl_for_each_element(&services, s, avl) {
 341                 if (name && strcmp(s->name, name) != 0)
 342                         continue;
 343
 344                 service_dump(s, verbose);
 345         }
 346
 347         ubus_send_reply(ctx, req, b.head);
 348
 349         return 0;
 350 }
 351
 352 static int
 353 service_handle_delete(struct ubus_context *ctx, struct ubus_object *obj,
 354                     struct ubus_request_data *req, const char *method,
 355                     struct blob_attr *msg)
 356 {
 357         struct blob_attr *tb[__SERVICE_DEL_ATTR_MAX], *cur;
 358         struct service *s;
 359         struct service_instance *in;
 360
 361         blobmsg_parse(service_del_attrs, __SERVICE_DEL_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
 362
 363         cur = tb[SERVICE_DEL_ATTR_NAME];
 364         if (!cur)
 365                 return UBUS_STATUS_NOT_FOUND;
 366
 367         s = avl_find_element(&services, blobmsg_data(cur), s, avl);
 368         if (!s)
 369                 return UBUS_STATUS_NOT_FOUND;
 370
 371         cur = tb[SERVICE_DEL_ATTR_INSTANCE];
 372         if (!cur) {
 373                 service_delete(s);
 374                 return 0;
 375         }
 376
 377         in = vlist_find(&s->instances, blobmsg_data(cur), in, node);
 378         if (!in) {
 379                 ERROR("instance %s not found\n", (char *) blobmsg_data(cur));
 380                 return UBUS_STATUS_NOT_FOUND;
 381         }
 382
 383         vlist_delete(&s->instances, &in->node);
 384
 385         return 0;
 386 }
 387
 388 static int
 389 service_handle_kill(struct service_instance *in, int sig)
 390 {
 391         if (kill(in->proc.pid, sig) == 0)
 392                 return 0;
 393
 394         switch (errno) {
 395         case EINVAL: return UBUS_STATUS_INVALID_ARGUMENT;
 396         case EPERM:  return UBUS_STATUS_PERMISSION_DENIED;
 397         case ESRCH:  return UBUS_STATUS_NOT_FOUND;
 398         }
 399
 400         return UBUS_STATUS_UNKNOWN_ERROR;
 401 }
 402
 403 static int
 404 service_handle_signal(struct ubus_context *ctx, struct ubus_object *obj,
 405                     struct ubus_request_data *req, const char *method,
 406                     struct blob_attr *msg)
 407 {
 408         struct blob_attr *tb[__SERVICE_SIGNAL_ATTR_MAX], *cur;
 409         struct service *s;
 410         struct service_instance *in;
 411         int sig = SIGHUP;
 412         int rv = 0;
 413
 414         blobmsg_parse(service_signal_attrs, __SERVICE_SIGNAL_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
 415
 416         cur = tb[SERVICE_SIGNAL_ATTR_SIGNAL];
 417         if (cur)
 418                 sig = blobmsg_get_u32(cur);
 419
 420         cur = tb[SERVICE_SIGNAL_ATTR_NAME];
 421         if (!cur)
 422                 return UBUS_STATUS_NOT_FOUND;
 423
 424         s = avl_find_element(&services, blobmsg_data(cur), s, avl);
 425         if (!s)
 426                 return UBUS_STATUS_NOT_FOUND;
 427
 428         cur = tb[SERVICE_SIGNAL_ATTR_INSTANCE];
 429         if (!cur) {
 430                 vlist_for_each_element(&s->instances, in, node)
 431                         rv = service_handle_kill(in, sig);
 432
 433                 return rv;
 434         }
 435
 436         in = vlist_find(&s->instances, blobmsg_data(cur), in, node);
 437         if (!in) {
 438                 ERROR("instance %s not found\n", blobmsg_get_string(cur));
 439                 return UBUS_STATUS_NOT_FOUND;
 440         }
 441
 442         return service_handle_kill(in, sig);
 443 }
 444
 445 static int
 446 service_handle_state(struct ubus_context *ctx, struct ubus_object *obj,
 447                      struct ubus_request_data *req, const char *method,
 448                      struct blob_attr *msg)
 449 {
 450         struct blob_attr *tb[__SERVICE_STATE_ATTR_MAX];
 451         struct service *s;
 452         struct service_instance *in;
 453         int spawn;
 454
 455         blobmsg_parse(service_state_attrs, __SERVICE_STATE_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
 456
 457         if (!tb[SERVICE_STATE_ATTR_SPAWN])
 458                 return UBUS_STATUS_INVALID_ARGUMENT;
 459
 460         if (!tb[SERVICE_STATE_ATTR_NAME])
 461                 return UBUS_STATUS_NOT_FOUND;
 462
 463         s = avl_find_element(&services, blobmsg_data(tb[SERVICE_STATE_ATTR_NAME]), s, avl);
 464         if (!s)
 465                 return UBUS_STATUS_NOT_FOUND;
 466
 467         spawn = !!blobmsg_get_u8(tb[SERVICE_STATE_ATTR_SPAWN]);
 468         vlist_for_each_element(&s->instances, in, node) {
 469                 if (!!in->proc.pending == !!spawn)
 470                         continue;
 471                 else if (!in->proc.pending)
 472                         instance_start(in);
 473                 else
 474                         instance_stop(in, false);
 475         }
 476
 477         return UBUS_STATUS_OK;
 478 }
 479
 480 static int
 481 service_handle_update(struct ubus_context *ctx, struct ubus_object *obj,
 482                       struct ubus_request_data *req, const char *method,
 483                       struct blob_attr *msg)
 484 {
 485         struct blob_attr *tb[__SERVICE_ATTR_MAX], *cur;
 486         struct service *s;
 487
 488         blobmsg_parse(service_attrs, __SERVICE_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
 489
 490         cur = tb[SERVICE_SET_NAME];
 491         if (!cur)
 492                 return UBUS_STATUS_INVALID_ARGUMENT;
 493
 494         s = avl_find_element(&services, blobmsg_data(cur), s, avl);
 495         if (!s)
 496                 return UBUS_STATUS_NOT_FOUND;
 497
 498         if (!strcmp(method, "update_start"))
 499                 vlist_update(&s->instances);
 500         else
 501                 vlist_flush(&s->instances);
 502
 503         return 0;
 504 }
 505
 506 static void ubus_event_bcast(const char *type, const char *param1, const char *val1,
 507                              const char *param2, const char *val2)
 508 {
 509         if (!ctx)
 510                 return;
 511
 512         blob_buf_init(&b, 0);
 513         if (param1 && val1)
 514                 blobmsg_add_string(&b, param1, val1);
 515         if (param2 && val2)
 516                 blobmsg_add_string(&b, param2, val2);
 517         ubus_notify(ctx, &main_object, type, b.head, -1);
 518 }
 519
 520 static int
 521 service_handle_event(struct ubus_context *ctx, struct ubus_object *obj,
 522                         struct ubus_request_data *req, const char *method,
 523                         struct blob_attr *msg)
 524 {
 525         struct blob_attr *tb[__EVENT_MAX];
 526         const char *event;
 527
 528         if (!msg)
 529                 return UBUS_STATUS_INVALID_ARGUMENT;
 530
 531         blobmsg_parse(event_policy, __EVENT_MAX, tb, blob_data(msg), blob_len(msg));
 532         if (!tb[EVENT_TYPE] || !tb[EVENT_DATA])
 533                 return UBUS_STATUS_INVALID_ARGUMENT;
 534
 535         event = blobmsg_get_string(tb[EVENT_TYPE]);
 536         trigger_event(event, tb[EVENT_DATA]);
 537
 538         if (!strcmp(event, "config.change")) {
 539                 struct blob_attr *tb2[__DATA_MAX];
 540
 541                 blobmsg_parse(validate_policy, __VALIDATE_MAX, tb2,
 542                               blobmsg_data(tb[EVENT_DATA]), blobmsg_len(tb[EVENT_DATA]));
 543                 if (tb2[VALIDATE_PACKAGE])
 544                         ubus_event_bcast("config.change", "config",
 545                                          blobmsg_get_string(tb2[VALIDATE_PACKAGE]), NULL, NULL);
 546         }
 547         return 0;
 548 }
 549
 550 static int
 551 service_handle_validate(struct ubus_context *ctx, struct ubus_object *obj,
 552                         struct ubus_request_data *req, const char *method,
 553                         struct blob_attr *msg)
 554 {
 555         struct blob_attr *tb[__VALIDATE_MAX];
 556         char *p = NULL, *t = NULL;
 557
 558         if (!msg)
 559                 return UBUS_STATUS_INVALID_ARGUMENT;
 560
 561         blobmsg_parse(validate_policy, __VALIDATE_MAX, tb, blob_data(msg), blob_len(msg));
 562         if (tb[VALIDATE_SERVICE]) {
 563                 return 0;
 564         }
 565         if (tb[VALIDATE_PACKAGE])
 566                 p = blobmsg_get_string(tb[VALIDATE_PACKAGE]);
 567
 568         if (tb[VALIDATE_TYPE])
 569                 t = blobmsg_get_string(tb[VALIDATE_TYPE]);
 570
 571         blob_buf_init(&b, 0);
 572         service_validate_dump_all(&b, p, t);
 573         ubus_send_reply(ctx, req, b.head);
 574
 575         return 0;
 576 }
 577
 578 static int
 579 service_get_data(struct ubus_context *ctx, struct ubus_object *obj,
 580                  struct ubus_request_data *req, const char *method,
 581                  struct blob_attr *msg)
 582 {
 583         struct service_instance *in;
 584         struct service *s;
 585         struct blob_attr *tb[__DATA_MAX];
 586         const char *name = NULL;
 587         const char *instance = NULL;
 588         const char *type = NULL;
 589
 590         blobmsg_parse(get_data_policy, __DATA_MAX, tb, blob_data(msg), blob_len(msg));
 591         if (tb[DATA_NAME])
 592                 name = blobmsg_data(tb[DATA_NAME]);
 593         if (tb[DATA_INSTANCE])
 594                 instance = blobmsg_data(tb[DATA_INSTANCE]);
 595         if (tb[DATA_TYPE])
 596                 type = blobmsg_data(tb[DATA_TYPE]);
 597
 598         blob_buf_init(&b, 0);
 599         avl_for_each_element(&services, s, avl) {
 600                 void *cs = NULL;
 601
 602                 if (name && strcmp(name, s->name))
 603                         continue;
 604
 605                 vlist_for_each_element(&s->instances, in, node) {
 606                         struct blobmsg_list_node *var;
 607                         void *ci = NULL;
 608
 609                         if (instance && strcmp(instance, in->name))
 610                                 continue;
 611
 612                         blobmsg_list_for_each(&in->data, var) {
 613                                 if (type &&
 614                                     strcmp(blobmsg_name(var->data), type))
 615                                         continue;
 616
 617                                 if (!cs)
 618                                         cs = blobmsg_open_table(&b, s->name);
 619                                 if (!ci)
 620                                         ci = blobmsg_open_table(&b, in->name);
 621
 622                                 blobmsg_add_blob(&b, var->data);
 623                         }
 624
 625                         if (ci)
 626                                 blobmsg_close_table(&b, ci);
 627                 }
 628
 629                 if (cs)
 630                         blobmsg_close_table(&b, cs);
 631         }
 632
 633         ubus_send_reply(ctx, req, b.head);
 634         return 0;
 635 }
 636
 637 static struct ubus_method main_object_methods[] = {
 638         UBUS_METHOD("set", service_handle_set, service_set_attrs),
 639         UBUS_METHOD("add", service_handle_set, service_set_attrs),
 640         UBUS_METHOD("list", service_handle_list, service_list_attrs),
 641         UBUS_METHOD("delete", service_handle_delete, service_del_attrs),
 642         UBUS_METHOD("signal", service_handle_signal, service_signal_attrs),
 643         UBUS_METHOD("update_start", service_handle_update, service_attrs),
 644         UBUS_METHOD("update_complete", service_handle_update, service_attrs),
 645         UBUS_METHOD("event", service_handle_event, event_policy),
 646         UBUS_METHOD("validate", service_handle_validate, validate_policy),
 647         UBUS_METHOD("get_data", service_get_data, get_data_policy),
 648         UBUS_METHOD("state", service_handle_state, service_state_attrs),
 649 };
 650
 651 static struct ubus_object_type main_object_type =
 652         UBUS_OBJECT_TYPE("service", main_object_methods);
 653
 654 static struct ubus_object main_object = {
 655         .name = "service",
 656         .type = &main_object_type,
 657         .methods = main_object_methods,
 658         .n_methods = ARRAY_SIZE(main_object_methods),
 659 };
 660
 661 int
 662 service_start_early(char *name, char *cmdline)
 663 {
 664         void *instances, *instance, *command, *respawn;
 665         char *t;
 666
 667         blob_buf_init(&b, 0);
 668         blobmsg_add_string(&b, "name", name);
 669         instances = blobmsg_open_table(&b, "instances");
 670         instance = blobmsg_open_table(&b, "instance1");
 671         command = blobmsg_open_array(&b, "command");
 672         t = strtok(cmdline, " ");
 673         while (t) {
 674                 blobmsg_add_string(&b, NULL, t);
 675                 t = strtok(NULL, " ");
 676         }
 677         blobmsg_close_array(&b, command);
 678         respawn = blobmsg_open_array(&b, "respawn");
 679         blobmsg_add_string(&b, NULL, "3600");
 680         blobmsg_add_string(&b, NULL, "1");
 681         blobmsg_add_string(&b, NULL, "0");
 682         blobmsg_close_array(&b, respawn);
 683         blobmsg_close_table(&b, instance);
 684         blobmsg_close_table(&b, instances);
 685
 686         return service_handle_set(NULL, NULL, NULL, "add", b.head);
 687 }
 688
 689 void service_stopped(struct service *s)
 690 {
 691         if (s->deleted && avl_is_empty(&s->instances.avl)) {
 692                 service_event("service.stop", s->name, NULL);
 693                 avl_delete(&services, &s->avl);
 694                 trigger_del(s);
 695                 service_validate_del(s);
 696                 free(s->trigger);
 697                 free(s);
 698         }
 699 }
 700
 701 void service_event(const char *type, const char *service, const char *instance)
 702 {
 703         ubus_event_bcast(type, "service", service, "instance", instance);
 704 }
 705
 706 void ubus_init_service(struct ubus_context *_ctx)
 707 {
 708         ctx = _ctx;
 709         ubus_add_object(ctx, &main_object);
 710 }