2 * Copyright (C) 2013 Felix Fietkau <nbd@openwrt.org>
3 * Copyright (C) 2013 John Crispin <blogic@openwrt.org>
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
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.
15 #include <libubox/blobmsg_json.h>
16 #include <libubox/avl-cmp.h>
25 struct avl_tree services;
26 static struct blob_buf b;
27 static struct ubus_context *ctx;
30 service_instance_add(struct service *s, struct blob_attr *attr)
32 struct service_instance *in;
34 if (blobmsg_type(attr) != BLOBMSG_TYPE_TABLE)
37 in = calloc(1, sizeof(*in));
41 instance_init(in, s, attr);
42 vlist_add(&s->instances, &in->node, (void *) in->name);
46 service_instance_update(struct vlist_tree *tree, struct vlist_node *node_new,
47 struct vlist_node *node_old)
49 struct service_instance *in_o = NULL, *in_n = NULL;
52 in_o = container_of(node_old, struct service_instance, node);
55 in_n = container_of(node_new, struct service_instance, node);
58 DEBUG(2, "Update instance %s::%s\n", in_o->srv->name, in_o->name);
59 instance_update(in_o, in_n);
62 DEBUG(2, "Free instance %s::%s\n", in_o->srv->name, in_o->name);
66 DEBUG(2, "Create instance %s::%s\n", in_n->srv->name, in_n->name);
70 trigger_event("instance.update", b.head);
73 static struct service *
74 service_alloc(const char *name)
79 s = calloc_a(sizeof(*s), &new_name, strlen(name) + 1);
80 strcpy(new_name, name);
82 vlist_init(&s->instances, avl_strcmp, service_instance_update);
83 s->instances.keep_old = true;
86 INIT_LIST_HEAD(&s->validators);
94 SERVICE_SET_INSTANCES,
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 },
109 service_update(struct service *s, struct blob_attr **tb, bool add)
111 struct blob_attr *cur;
120 service_validate_del(s);
122 if (tb[SERVICE_SET_TRIGGER] && blobmsg_data_len(tb[SERVICE_SET_TRIGGER])) {
123 s->trigger = blob_memdup(tb[SERVICE_SET_TRIGGER]);
126 trigger_add(s->trigger, s);
129 if (tb[SERVICE_SET_VALIDATE] && blobmsg_data_len(tb[SERVICE_SET_VALIDATE])) {
130 blobmsg_for_each_attr(cur, tb[SERVICE_SET_VALIDATE], rem)
131 service_validate_add(s, cur);
134 if (tb[SERVICE_SET_INSTANCES]) {
136 vlist_update(&s->instances);
137 blobmsg_for_each_attr(cur, tb[SERVICE_SET_INSTANCES], rem) {
138 service_instance_add(s, cur);
141 vlist_flush(&s->instances);
144 rc(s->name, "running");
150 service_delete(struct service *s)
152 service_event("service.stop", s->name, NULL);
153 vlist_flush_all(&s->instances);
154 avl_delete(&services, &s->avl);
158 service_validate_del(s);
166 static const struct blobmsg_policy service_attrs[__SERVICE_ATTR_MAX] = {
167 [SERVICE_ATTR_NAME] = { "name", BLOBMSG_TYPE_STRING },
171 SERVICE_DEL_ATTR_NAME,
172 SERVICE_DEL_ATTR_INSTANCE,
173 __SERVICE_DEL_ATTR_MAX,
176 static const struct blobmsg_policy service_del_attrs[__SERVICE_DEL_ATTR_MAX] = {
177 [SERVICE_DEL_ATTR_NAME] = { "name", BLOBMSG_TYPE_STRING },
178 [SERVICE_DEL_ATTR_INSTANCE] = { "instance", BLOBMSG_TYPE_STRING },
182 SERVICE_LIST_ATTR_NAME,
183 SERVICE_LIST_ATTR_VERBOSE,
184 __SERVICE_LIST_ATTR_MAX,
187 static const struct blobmsg_policy service_list_attrs[__SERVICE_LIST_ATTR_MAX] = {
188 [SERVICE_LIST_ATTR_NAME] = { "name", BLOBMSG_TYPE_STRING },
189 [SERVICE_LIST_ATTR_VERBOSE] = { "verbose", BLOBMSG_TYPE_BOOL },
198 static const struct blobmsg_policy event_policy[__EVENT_MAX] = {
199 [EVENT_TYPE] = { .name = "type", .type = BLOBMSG_TYPE_STRING },
200 [EVENT_DATA] = { .name = "data", .type = BLOBMSG_TYPE_TABLE },
210 static const struct blobmsg_policy validate_policy[__VALIDATE_MAX] = {
211 [VALIDATE_PACKAGE] = { .name = "package", .type = BLOBMSG_TYPE_STRING },
212 [VALIDATE_TYPE] = { .name = "type", .type = BLOBMSG_TYPE_STRING },
213 [VALIDATE_SERVICE] = { .name = "service", .type = BLOBMSG_TYPE_STRING },
216 static const struct blobmsg_policy get_data_policy[] = {
217 { "type", BLOBMSG_TYPE_STRING }
221 service_handle_set(struct ubus_context *ctx, struct ubus_object *obj,
222 struct ubus_request_data *req, const char *method,
223 struct blob_attr *msg)
225 struct blob_attr *tb[__SERVICE_SET_MAX], *cur;
226 struct service *s = NULL;
228 bool add = !strcmp(method, "add");
231 blobmsg_parse(service_set_attrs, __SERVICE_SET_MAX, tb, blob_data(msg), blob_len(msg));
232 cur = tb[SERVICE_ATTR_NAME];
234 return UBUS_STATUS_INVALID_ARGUMENT;
236 name = blobmsg_data(cur);
238 s = avl_find_element(&services, name, s, avl);
240 DEBUG(2, "Update service %s\n", name);
241 return service_update(s, tb, add);
244 DEBUG(2, "Create service %s\n", name);
245 s = service_alloc(name);
247 return UBUS_STATUS_UNKNOWN_ERROR;
249 ret = service_update(s, tb, add);
253 avl_insert(&services, &s->avl);
255 service_event("service.start", s->name, NULL);
261 service_dump(struct service *s, bool verbose)
263 struct service_instance *in;
266 c = blobmsg_open_table(&b, s->name);
268 if (!avl_is_empty(&s->instances.avl)) {
269 i = blobmsg_open_table(&b, "instances");
270 vlist_for_each_element(&s->instances, in, node)
271 instance_dump(&b, in, verbose);
272 blobmsg_close_table(&b, i);
274 if (verbose && s->trigger)
275 blobmsg_add_blob(&b, s->trigger);
276 if (verbose && !list_empty(&s->validators))
277 service_validate_dump(&b, s);
278 blobmsg_close_table(&b, c);
282 service_handle_list(struct ubus_context *ctx, struct ubus_object *obj,
283 struct ubus_request_data *req, const char *method,
284 struct blob_attr *msg)
286 struct blob_attr *tb[__SERVICE_LIST_ATTR_MAX];
288 const char *name = NULL;
289 bool verbose = false;
291 blobmsg_parse(service_list_attrs, __SERVICE_LIST_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
293 if (tb[SERVICE_LIST_ATTR_VERBOSE])
294 verbose = blobmsg_get_bool(tb[SERVICE_LIST_ATTR_VERBOSE]);
295 if (tb[SERVICE_LIST_ATTR_NAME])
296 name = blobmsg_get_string(tb[SERVICE_LIST_ATTR_NAME]);
298 blob_buf_init(&b, 0);
299 avl_for_each_element(&services, s, avl) {
300 if (name && strcmp(s->name, name) != 0)
303 service_dump(s, verbose);
306 ubus_send_reply(ctx, req, b.head);
312 service_handle_delete(struct ubus_context *ctx, struct ubus_object *obj,
313 struct ubus_request_data *req, const char *method,
314 struct blob_attr *msg)
316 struct blob_attr *tb[__SERVICE_DEL_ATTR_MAX], *cur;
318 struct service_instance *in;
320 blobmsg_parse(service_del_attrs, __SERVICE_DEL_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
322 cur = tb[SERVICE_DEL_ATTR_NAME];
324 return UBUS_STATUS_NOT_FOUND;
326 s = avl_find_element(&services, blobmsg_data(cur), s, avl);
328 return UBUS_STATUS_NOT_FOUND;
330 cur = tb[SERVICE_DEL_ATTR_INSTANCE];
336 in = vlist_find(&s->instances, blobmsg_data(cur), in, node);
338 ERROR("instance %s not found\n", (char *) blobmsg_data(cur));
339 return UBUS_STATUS_NOT_FOUND;
342 vlist_delete(&s->instances, &in->node);
348 service_handle_update(struct ubus_context *ctx, struct ubus_object *obj,
349 struct ubus_request_data *req, const char *method,
350 struct blob_attr *msg)
352 struct blob_attr *tb[__SERVICE_ATTR_MAX], *cur;
355 blobmsg_parse(service_attrs, __SERVICE_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
357 cur = tb[SERVICE_ATTR_NAME];
359 return UBUS_STATUS_INVALID_ARGUMENT;
361 s = avl_find_element(&services, blobmsg_data(cur), s, avl);
363 return UBUS_STATUS_NOT_FOUND;
365 if (!strcmp(method, "update_start"))
366 vlist_update(&s->instances);
368 vlist_flush(&s->instances);
374 service_handle_event(struct ubus_context *ctx, struct ubus_object *obj,
375 struct ubus_request_data *req, const char *method,
376 struct blob_attr *msg)
378 struct blob_attr *tb[__EVENT_MAX];
381 return UBUS_STATUS_INVALID_ARGUMENT;
383 blobmsg_parse(event_policy, __EVENT_MAX, tb, blob_data(msg), blob_len(msg));
384 if (!tb[EVENT_TYPE] || !tb[EVENT_DATA])
385 return UBUS_STATUS_INVALID_ARGUMENT;
387 trigger_event(blobmsg_get_string(tb[EVENT_TYPE]), tb[EVENT_DATA]);
393 service_handle_validate(struct ubus_context *ctx, struct ubus_object *obj,
394 struct ubus_request_data *req, const char *method,
395 struct blob_attr *msg)
397 struct blob_attr *tb[__VALIDATE_MAX];
398 char *p = NULL, *t = NULL;
401 return UBUS_STATUS_INVALID_ARGUMENT;
403 blobmsg_parse(validate_policy, __VALIDATE_MAX, tb, blob_data(msg), blob_len(msg));
404 if (tb[VALIDATE_SERVICE]) {
407 if (tb[VALIDATE_PACKAGE])
408 p = blobmsg_get_string(tb[VALIDATE_PACKAGE]);
410 if (tb[VALIDATE_TYPE])
411 t = blobmsg_get_string(tb[VALIDATE_TYPE]);
413 blob_buf_init(&b, 0);
414 service_validate_dump_all(&b, p, t);
415 ubus_send_reply(ctx, req, b.head);
421 service_get_data(struct ubus_context *ctx, struct ubus_object *obj,
422 struct ubus_request_data *req, const char *method,
423 struct blob_attr *msg)
425 struct service_instance *in;
427 struct blob_attr *tb;
428 const char *type = NULL;
430 blobmsg_parse(get_data_policy, 1, &tb, blob_data(msg), blob_len(msg));
432 type = blobmsg_data(tb);
434 blob_buf_init(&b, 0);
435 avl_for_each_element(&services, s, avl) {
438 vlist_for_each_element(&s->instances, in, node) {
439 struct blobmsg_list_node *var;
442 blobmsg_list_for_each(&in->data, var) {
444 strcmp(blobmsg_name(var->data), type) != 0)
448 cs = blobmsg_open_table(&b, s->name);
450 ci = blobmsg_open_table(&b, in->name);
452 blobmsg_add_blob(&b, var->data);
456 blobmsg_close_table(&b, ci);
460 blobmsg_close_table(&b, cs);
463 ubus_send_reply(ctx, req, b.head);
467 static struct ubus_method main_object_methods[] = {
468 UBUS_METHOD("set", service_handle_set, service_set_attrs),
469 UBUS_METHOD("add", service_handle_set, service_set_attrs),
470 UBUS_METHOD("list", service_handle_list, service_list_attrs),
471 UBUS_METHOD("delete", service_handle_delete, service_del_attrs),
472 UBUS_METHOD("update_start", service_handle_update, service_attrs),
473 UBUS_METHOD("update_complete", service_handle_update, service_attrs),
474 UBUS_METHOD("event", service_handle_event, event_policy),
475 UBUS_METHOD("validate", service_handle_validate, validate_policy),
476 UBUS_METHOD("get_data", service_get_data, get_data_policy),
479 static struct ubus_object_type main_object_type =
480 UBUS_OBJECT_TYPE("service", main_object_methods);
482 static struct ubus_object main_object = {
484 .type = &main_object_type,
485 .methods = main_object_methods,
486 .n_methods = ARRAY_SIZE(main_object_methods),
490 service_start_early(char *name, char *cmdline)
492 void *instances, *instance, *command, *respawn;
495 blob_buf_init(&b, 0);
496 blobmsg_add_string(&b, "name", name);
497 instances = blobmsg_open_table(&b, "instances");
498 instance = blobmsg_open_table(&b, "instance1");
499 command = blobmsg_open_array(&b, "command");
500 t = strtok(cmdline, " ");
502 blobmsg_add_string(&b, NULL, t);
503 t = strtok(NULL, " ");
505 blobmsg_close_array(&b, command);
506 respawn = blobmsg_open_array(&b, "respawn");
507 blobmsg_add_string(&b, NULL, "3600");
508 blobmsg_add_string(&b, NULL, "1");
509 blobmsg_add_string(&b, NULL, "0");
510 blobmsg_close_array(&b, respawn);
511 blobmsg_close_table(&b, instance);
512 blobmsg_close_table(&b, instances);
514 return service_handle_set(NULL, NULL, NULL, "add", b.head);
517 void service_event(const char *type, const char *service, const char *instance)
522 blob_buf_init(&b, 0);
523 blobmsg_add_string(&b, "service", service);
525 blobmsg_add_string(&b, "instance", instance);
526 ubus_notify(ctx, &main_object, type, b.head, -1);
529 void ubus_init_service(struct ubus_context *_ctx)
532 ubus_add_object(ctx, &main_object);
538 avl_init(&services, avl_strcmp, false, NULL);
539 service_validate_init();