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>
21 struct avl_tree services;
22 static struct blob_buf b;
25 service_instance_add(struct service *s, struct blob_attr *attr)
27 struct service_instance *in;
29 if (blobmsg_type(attr) != BLOBMSG_TYPE_TABLE)
32 in = calloc(1, sizeof(*in));
36 instance_init(in, s, attr);
37 vlist_add(&s->instances, &in->node, (void *) in->name);
41 service_instance_update(struct vlist_tree *tree, struct vlist_node *node_new,
42 struct vlist_node *node_old)
44 struct service_instance *in_o = NULL, *in_n = NULL;
47 in_o = container_of(node_old, struct service_instance, node);
50 in_n = container_of(node_new, struct service_instance, node);
53 DEBUG(1, "Update instance %s::%s\n", in_o->srv->name, in_o->name);
54 instance_update(in_o, in_n);
57 DEBUG(1, "Free instance %s::%s\n", in_o->srv->name, in_o->name);
61 DEBUG(1, "Create instance %s::%s\n", in_n->srv->name, in_n->name);
66 static struct service *
67 service_alloc(const char *name)
72 s = calloc_a(sizeof(*s), &new_name, strlen(name) + 1);
73 strcpy(new_name, name);
75 vlist_init(&s->instances, avl_strcmp, service_instance_update);
76 s->instances.keep_old = true;
86 SERVICE_SET_INSTANCES,
91 static const struct blobmsg_policy service_set_attrs[__SERVICE_SET_MAX] = {
92 [SERVICE_SET_NAME] = { "name", BLOBMSG_TYPE_STRING },
93 [SERVICE_SET_SCRIPT] = { "script", BLOBMSG_TYPE_STRING },
94 [SERVICE_SET_INSTANCES] = { "instances", BLOBMSG_TYPE_TABLE },
95 [SERVICE_SET_TRIGGER] = { "triggers", BLOBMSG_TYPE_ARRAY },
99 service_update(struct service *s, struct blob_attr *config, struct blob_attr **tb, bool add)
101 struct blob_attr *cur;
110 if (tb[SERVICE_SET_TRIGGER] && blobmsg_data_len(tb[SERVICE_SET_TRIGGER])) {
111 s->trigger = malloc(blob_len(tb[SERVICE_SET_TRIGGER]));
114 memcpy(s->trigger, tb[SERVICE_SET_TRIGGER], blob_len(tb[SERVICE_SET_TRIGGER]));
115 trigger_add(s->trigger, s);
118 if (tb[SERVICE_SET_INSTANCES]) {
120 vlist_update(&s->instances);
121 blobmsg_for_each_attr(cur, tb[SERVICE_SET_INSTANCES], rem) {
122 service_instance_add(s, cur);
125 vlist_flush(&s->instances);
132 service_delete(struct service *s)
134 vlist_flush_all(&s->instances);
135 avl_delete(&services, &s->avl);
148 static const struct blobmsg_policy service_attrs[__SERVICE_ATTR_MAX] = {
149 [SERVICE_ATTR_NAME] = { "name", BLOBMSG_TYPE_STRING },
153 SERVICE_DEL_ATTR_NAME,
154 SERVICE_DEL_ATTR_INSTANCE,
155 __SERVICE_DEL_ATTR_MAX,
158 static const struct blobmsg_policy service_del_attrs[__SERVICE_DEL_ATTR_MAX] = {
159 [SERVICE_DEL_ATTR_NAME] = { "name", BLOBMSG_TYPE_STRING },
160 [SERVICE_DEL_ATTR_INSTANCE] = { "instance", BLOBMSG_TYPE_STRING },
164 SERVICE_LIST_ATTR_VERBOSE,
165 __SERVICE_LIST_ATTR_MAX,
168 static const struct blobmsg_policy service_list_attrs[__SERVICE_LIST_ATTR_MAX] = {
169 [SERVICE_LIST_ATTR_VERBOSE] = { "verbose", BLOBMSG_TYPE_BOOL },
178 static const struct blobmsg_policy event_policy[__EVENT_MAX] = {
179 [EVENT_TYPE] = { .name = "type", .type = BLOBMSG_TYPE_STRING },
180 [EVENT_DATA] = { .name = "data", .type = BLOBMSG_TYPE_TABLE },
184 service_handle_set(struct ubus_context *ctx, struct ubus_object *obj,
185 struct ubus_request_data *req, const char *method,
186 struct blob_attr *msg)
188 struct blob_attr *tb[__SERVICE_SET_MAX], *cur;
189 struct service *s = NULL;
191 int ret = UBUS_STATUS_INVALID_ARGUMENT;
192 bool add = !strcmp(method, "add");
194 blobmsg_parse(service_set_attrs, __SERVICE_SET_MAX, tb, blob_data(msg), blob_len(msg));
195 cur = tb[SERVICE_ATTR_NAME];
199 name = blobmsg_data(cur);
201 s = avl_find_element(&services, name, s, avl);
203 DEBUG(1, "Update service %s\n", name);
204 return service_update(s, msg, tb, add);
207 DEBUG(1, "Create service %s\n", name);
208 s = service_alloc(name);
210 return UBUS_STATUS_UNKNOWN_ERROR;
212 ret = service_update(s, msg, tb, add);
216 avl_insert(&services, &s->avl);
226 service_dump(struct service *s, int verbose)
228 struct service_instance *in;
231 c = blobmsg_open_table(&b, s->name);
233 if (avl_is_empty(&s->instances.avl)) {
234 blobmsg_close_table(&b, c);
238 i = blobmsg_open_table(&b, "instances");
239 vlist_for_each_element(&s->instances, in, node)
240 instance_dump(&b, in, verbose);
241 blobmsg_close_table(&b, i);
242 if (verbose && s->trigger)
243 blobmsg_add_blob(&b, s->trigger);
244 blobmsg_close_table(&b, c);
248 service_handle_list(struct ubus_context *ctx, struct ubus_object *obj,
249 struct ubus_request_data *req, const char *method,
250 struct blob_attr *msg)
252 struct blob_attr *tb[__SERVICE_LIST_ATTR_MAX];
256 blobmsg_parse(service_list_attrs, __SERVICE_LIST_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
258 if (tb[SERVICE_LIST_ATTR_VERBOSE] && blobmsg_get_bool(tb[SERVICE_LIST_ATTR_VERBOSE]))
261 blob_buf_init(&b, 0);
262 avl_for_each_element(&services, s, avl)
263 service_dump(s, verbose);
265 ubus_send_reply(ctx, req, b.head);
271 service_handle_delete(struct ubus_context *ctx, struct ubus_object *obj,
272 struct ubus_request_data *req, const char *method,
273 struct blob_attr *msg)
275 struct blob_attr *tb[__SERVICE_DEL_ATTR_MAX], *cur;
277 struct service_instance *in;
279 blobmsg_parse(service_del_attrs, __SERVICE_DEL_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
281 cur = tb[SERVICE_DEL_ATTR_NAME];
283 return UBUS_STATUS_NOT_FOUND;
285 s = avl_find_element(&services, blobmsg_data(cur), s, avl);
287 return UBUS_STATUS_NOT_FOUND;
289 cur = tb[SERVICE_DEL_ATTR_INSTANCE];
295 in = vlist_find(&s->instances, blobmsg_data(cur), in, node);
297 ERROR("instance %s not found\n", (char *) blobmsg_data(cur));
298 return UBUS_STATUS_NOT_FOUND;
301 vlist_delete(&s->instances, &in->node);
307 service_handle_update(struct ubus_context *ctx, struct ubus_object *obj,
308 struct ubus_request_data *req, const char *method,
309 struct blob_attr *msg)
311 struct blob_attr *tb[__SERVICE_ATTR_MAX], *cur;
314 blobmsg_parse(service_attrs, __SERVICE_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
316 cur = tb[SERVICE_ATTR_NAME];
318 return UBUS_STATUS_INVALID_ARGUMENT;
320 s = avl_find_element(&services, blobmsg_data(cur), s, avl);
322 return UBUS_STATUS_NOT_FOUND;
324 if (!strcmp(method, "update_start"))
325 vlist_update(&s->instances);
327 vlist_flush(&s->instances);
333 service_handle_event(struct ubus_context *ctx, struct ubus_object *obj,
334 struct ubus_request_data *req, const char *method,
335 struct blob_attr *msg)
337 struct blob_attr *tb[__EVENT_MAX];
340 return UBUS_STATUS_INVALID_ARGUMENT;
342 blobmsg_parse(event_policy, __EVENT_MAX, tb, blob_data(msg), blob_len(msg));
343 if (!tb[EVENT_TYPE] || !tb[EVENT_DATA])
344 return UBUS_STATUS_INVALID_ARGUMENT;
346 trigger_event(blobmsg_get_string(tb[EVENT_TYPE]), tb[EVENT_DATA]);
351 static struct ubus_method main_object_methods[] = {
352 UBUS_METHOD("set", service_handle_set, service_set_attrs),
353 UBUS_METHOD("add", service_handle_set, service_set_attrs),
354 UBUS_METHOD("list", service_handle_list, service_attrs),
355 UBUS_METHOD("delete", service_handle_delete, service_del_attrs),
356 UBUS_METHOD("update_start", service_handle_update, service_attrs),
357 UBUS_METHOD("update_complete", service_handle_update, service_attrs),
358 UBUS_METHOD("event", service_handle_event, event_policy),
361 static struct ubus_object_type main_object_type =
362 UBUS_OBJECT_TYPE("service", main_object_methods);
364 static struct ubus_object main_object = {
366 .type = &main_object_type,
367 .methods = main_object_methods,
368 .n_methods = ARRAY_SIZE(main_object_methods),
371 void ubus_init_service(struct ubus_context *ctx)
373 avl_init(&services, avl_strcmp, false, NULL);
374 ubus_add_object(ctx, &main_object);