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_VERBOSE,
183 __SERVICE_LIST_ATTR_MAX,
186 static const struct blobmsg_policy service_list_attrs[__SERVICE_LIST_ATTR_MAX] = {
187 [SERVICE_LIST_ATTR_VERBOSE] = { "verbose", BLOBMSG_TYPE_BOOL },
196 static const struct blobmsg_policy event_policy[__EVENT_MAX] = {
197 [EVENT_TYPE] = { .name = "type", .type = BLOBMSG_TYPE_STRING },
198 [EVENT_DATA] = { .name = "data", .type = BLOBMSG_TYPE_TABLE },
208 static const struct blobmsg_policy validate_policy[__VALIDATE_MAX] = {
209 [VALIDATE_PACKAGE] = { .name = "package", .type = BLOBMSG_TYPE_STRING },
210 [VALIDATE_TYPE] = { .name = "type", .type = BLOBMSG_TYPE_STRING },
211 [VALIDATE_SERVICE] = { .name = "service", .type = BLOBMSG_TYPE_STRING },
214 static const struct blobmsg_policy get_data_policy[] = {
215 { "type", BLOBMSG_TYPE_STRING }
219 service_handle_set(struct ubus_context *ctx, struct ubus_object *obj,
220 struct ubus_request_data *req, const char *method,
221 struct blob_attr *msg)
223 struct blob_attr *tb[__SERVICE_SET_MAX], *cur;
224 struct service *s = NULL;
226 bool add = !strcmp(method, "add");
229 blobmsg_parse(service_set_attrs, __SERVICE_SET_MAX, tb, blob_data(msg), blob_len(msg));
230 cur = tb[SERVICE_ATTR_NAME];
232 return UBUS_STATUS_INVALID_ARGUMENT;
234 name = blobmsg_data(cur);
236 s = avl_find_element(&services, name, s, avl);
238 DEBUG(2, "Update service %s\n", name);
239 return service_update(s, tb, add);
242 DEBUG(2, "Create service %s\n", name);
243 s = service_alloc(name);
245 return UBUS_STATUS_UNKNOWN_ERROR;
247 ret = service_update(s, tb, add);
251 avl_insert(&services, &s->avl);
253 service_event("service.start", s->name, NULL);
259 service_dump(struct service *s, int verbose)
261 struct service_instance *in;
264 c = blobmsg_open_table(&b, s->name);
266 if (!avl_is_empty(&s->instances.avl)) {
267 i = blobmsg_open_table(&b, "instances");
268 vlist_for_each_element(&s->instances, in, node)
269 instance_dump(&b, in, verbose);
270 blobmsg_close_table(&b, i);
272 if (verbose && s->trigger)
273 blobmsg_add_blob(&b, s->trigger);
274 if (verbose && !list_empty(&s->validators))
275 service_validate_dump(&b, s);
276 blobmsg_close_table(&b, c);
280 service_handle_list(struct ubus_context *ctx, struct ubus_object *obj,
281 struct ubus_request_data *req, const char *method,
282 struct blob_attr *msg)
284 struct blob_attr *tb[__SERVICE_LIST_ATTR_MAX];
288 blobmsg_parse(service_list_attrs, __SERVICE_LIST_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
290 if (tb[SERVICE_LIST_ATTR_VERBOSE] && blobmsg_get_bool(tb[SERVICE_LIST_ATTR_VERBOSE]))
293 blob_buf_init(&b, 0);
294 avl_for_each_element(&services, s, avl)
295 service_dump(s, verbose);
297 ubus_send_reply(ctx, req, b.head);
303 service_handle_delete(struct ubus_context *ctx, struct ubus_object *obj,
304 struct ubus_request_data *req, const char *method,
305 struct blob_attr *msg)
307 struct blob_attr *tb[__SERVICE_DEL_ATTR_MAX], *cur;
309 struct service_instance *in;
311 blobmsg_parse(service_del_attrs, __SERVICE_DEL_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
313 cur = tb[SERVICE_DEL_ATTR_NAME];
315 return UBUS_STATUS_NOT_FOUND;
317 s = avl_find_element(&services, blobmsg_data(cur), s, avl);
319 return UBUS_STATUS_NOT_FOUND;
321 cur = tb[SERVICE_DEL_ATTR_INSTANCE];
327 in = vlist_find(&s->instances, blobmsg_data(cur), in, node);
329 ERROR("instance %s not found\n", (char *) blobmsg_data(cur));
330 return UBUS_STATUS_NOT_FOUND;
333 vlist_delete(&s->instances, &in->node);
339 service_handle_update(struct ubus_context *ctx, struct ubus_object *obj,
340 struct ubus_request_data *req, const char *method,
341 struct blob_attr *msg)
343 struct blob_attr *tb[__SERVICE_ATTR_MAX], *cur;
346 blobmsg_parse(service_attrs, __SERVICE_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
348 cur = tb[SERVICE_ATTR_NAME];
350 return UBUS_STATUS_INVALID_ARGUMENT;
352 s = avl_find_element(&services, blobmsg_data(cur), s, avl);
354 return UBUS_STATUS_NOT_FOUND;
356 if (!strcmp(method, "update_start"))
357 vlist_update(&s->instances);
359 vlist_flush(&s->instances);
365 service_handle_event(struct ubus_context *ctx, struct ubus_object *obj,
366 struct ubus_request_data *req, const char *method,
367 struct blob_attr *msg)
369 struct blob_attr *tb[__EVENT_MAX];
372 return UBUS_STATUS_INVALID_ARGUMENT;
374 blobmsg_parse(event_policy, __EVENT_MAX, tb, blob_data(msg), blob_len(msg));
375 if (!tb[EVENT_TYPE] || !tb[EVENT_DATA])
376 return UBUS_STATUS_INVALID_ARGUMENT;
378 trigger_event(blobmsg_get_string(tb[EVENT_TYPE]), tb[EVENT_DATA]);
384 service_handle_validate(struct ubus_context *ctx, struct ubus_object *obj,
385 struct ubus_request_data *req, const char *method,
386 struct blob_attr *msg)
388 struct blob_attr *tb[__VALIDATE_MAX];
389 char *p = NULL, *t = NULL;
392 return UBUS_STATUS_INVALID_ARGUMENT;
394 blobmsg_parse(validate_policy, __VALIDATE_MAX, tb, blob_data(msg), blob_len(msg));
395 if (tb[VALIDATE_SERVICE]) {
398 if (tb[VALIDATE_PACKAGE])
399 p = blobmsg_get_string(tb[VALIDATE_PACKAGE]);
401 if (tb[VALIDATE_TYPE])
402 t = blobmsg_get_string(tb[VALIDATE_TYPE]);
404 blob_buf_init(&b, 0);
405 service_validate_dump_all(&b, p, t);
406 ubus_send_reply(ctx, req, b.head);
412 service_get_data(struct ubus_context *ctx, struct ubus_object *obj,
413 struct ubus_request_data *req, const char *method,
414 struct blob_attr *msg)
416 struct service_instance *in;
418 struct blob_attr *tb;
419 const char *type = NULL;
421 blobmsg_parse(get_data_policy, 1, &tb, blob_data(msg), blob_len(msg));
423 type = blobmsg_data(tb);
425 blob_buf_init(&b, 0);
426 avl_for_each_element(&services, s, avl) {
429 vlist_for_each_element(&s->instances, in, node) {
430 struct blobmsg_list_node *var;
433 blobmsg_list_for_each(&in->data, var) {
435 strcmp(blobmsg_name(var->data), type) != 0)
439 cs = blobmsg_open_table(&b, s->name);
441 ci = blobmsg_open_table(&b, in->name);
443 blobmsg_add_blob(&b, var->data);
447 blobmsg_close_table(&b, ci);
451 blobmsg_close_table(&b, cs);
454 ubus_send_reply(ctx, req, b.head);
458 static struct ubus_method main_object_methods[] = {
459 UBUS_METHOD("set", service_handle_set, service_set_attrs),
460 UBUS_METHOD("add", service_handle_set, service_set_attrs),
461 UBUS_METHOD("list", service_handle_list, service_attrs),
462 UBUS_METHOD("delete", service_handle_delete, service_del_attrs),
463 UBUS_METHOD("update_start", service_handle_update, service_attrs),
464 UBUS_METHOD("update_complete", service_handle_update, service_attrs),
465 UBUS_METHOD("event", service_handle_event, event_policy),
466 UBUS_METHOD("validate", service_handle_validate, validate_policy),
467 UBUS_METHOD("get_data", service_get_data, get_data_policy),
470 static struct ubus_object_type main_object_type =
471 UBUS_OBJECT_TYPE("service", main_object_methods);
473 static struct ubus_object main_object = {
475 .type = &main_object_type,
476 .methods = main_object_methods,
477 .n_methods = ARRAY_SIZE(main_object_methods),
481 service_start_early(char *name, char *cmdline)
483 void *instances, *instance, *command, *respawn;
486 blob_buf_init(&b, 0);
487 blobmsg_add_string(&b, "name", name);
488 instances = blobmsg_open_table(&b, "instances");
489 instance = blobmsg_open_table(&b, "instance1");
490 command = blobmsg_open_array(&b, "command");
491 t = strtok(cmdline, " ");
493 blobmsg_add_string(&b, NULL, t);
494 t = strtok(NULL, " ");
496 blobmsg_close_array(&b, command);
497 respawn = blobmsg_open_array(&b, "respawn");
498 blobmsg_add_string(&b, NULL, "3600");
499 blobmsg_add_string(&b, NULL, "1");
500 blobmsg_add_string(&b, NULL, "0");
501 blobmsg_close_array(&b, respawn);
502 blobmsg_close_table(&b, instance);
503 blobmsg_close_table(&b, instances);
505 return service_handle_set(NULL, NULL, NULL, "add", b.head);
508 void service_event(const char *type, const char *service, const char *instance)
513 blob_buf_init(&b, 0);
514 blobmsg_add_string(&b, "service", service);
516 blobmsg_add_string(&b, "instance", instance);
517 ubus_notify(ctx, &main_object, type, b.head, -1);
520 void ubus_init_service(struct ubus_context *_ctx)
523 ubus_add_object(ctx, &main_object);
529 avl_init(&services, avl_strcmp, false, NULL);
530 service_validate_init();