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);
71 static struct service *
72 service_alloc(const char *name)
77 s = calloc_a(sizeof(*s), &new_name, strlen(name) + 1);
78 strcpy(new_name, name);
80 vlist_init(&s->instances, avl_strcmp, service_instance_update);
81 s->instances.keep_old = true;
84 INIT_LIST_HEAD(&s->validators);
92 SERVICE_SET_INSTANCES,
98 static const struct blobmsg_policy service_set_attrs[__SERVICE_SET_MAX] = {
99 [SERVICE_SET_NAME] = { "name", BLOBMSG_TYPE_STRING },
100 [SERVICE_SET_SCRIPT] = { "script", BLOBMSG_TYPE_STRING },
101 [SERVICE_SET_INSTANCES] = { "instances", BLOBMSG_TYPE_TABLE },
102 [SERVICE_SET_TRIGGER] = { "triggers", BLOBMSG_TYPE_ARRAY },
103 [SERVICE_SET_VALIDATE] = { "validate", BLOBMSG_TYPE_ARRAY },
107 service_update(struct service *s, struct blob_attr **tb, bool add)
109 struct blob_attr *cur;
118 service_validate_del(s);
120 if (tb[SERVICE_SET_TRIGGER] && blobmsg_data_len(tb[SERVICE_SET_TRIGGER])) {
121 s->trigger = blob_memdup(tb[SERVICE_SET_TRIGGER]);
124 trigger_add(s->trigger, s);
127 if (tb[SERVICE_SET_VALIDATE] && blobmsg_data_len(tb[SERVICE_SET_VALIDATE])) {
128 blobmsg_for_each_attr(cur, tb[SERVICE_SET_VALIDATE], rem)
129 service_validate_add(s, cur);
132 if (tb[SERVICE_SET_INSTANCES]) {
134 vlist_update(&s->instances);
135 blobmsg_for_each_attr(cur, tb[SERVICE_SET_INSTANCES], rem) {
136 service_instance_add(s, cur);
139 vlist_flush(&s->instances);
142 rc(s->name, "running");
148 service_delete(struct service *s)
150 service_event("service.stop", s->name, NULL);
151 vlist_flush_all(&s->instances);
152 avl_delete(&services, &s->avl);
156 service_validate_del(s);
164 static const struct blobmsg_policy service_attrs[__SERVICE_ATTR_MAX] = {
165 [SERVICE_ATTR_NAME] = { "name", BLOBMSG_TYPE_STRING },
169 SERVICE_DEL_ATTR_NAME,
170 SERVICE_DEL_ATTR_INSTANCE,
171 __SERVICE_DEL_ATTR_MAX,
174 static const struct blobmsg_policy service_del_attrs[__SERVICE_DEL_ATTR_MAX] = {
175 [SERVICE_DEL_ATTR_NAME] = { "name", BLOBMSG_TYPE_STRING },
176 [SERVICE_DEL_ATTR_INSTANCE] = { "instance", BLOBMSG_TYPE_STRING },
180 SERVICE_LIST_ATTR_VERBOSE,
181 __SERVICE_LIST_ATTR_MAX,
184 static const struct blobmsg_policy service_list_attrs[__SERVICE_LIST_ATTR_MAX] = {
185 [SERVICE_LIST_ATTR_VERBOSE] = { "verbose", BLOBMSG_TYPE_BOOL },
194 static const struct blobmsg_policy event_policy[__EVENT_MAX] = {
195 [EVENT_TYPE] = { .name = "type", .type = BLOBMSG_TYPE_STRING },
196 [EVENT_DATA] = { .name = "data", .type = BLOBMSG_TYPE_TABLE },
206 static const struct blobmsg_policy validate_policy[__VALIDATE_MAX] = {
207 [VALIDATE_PACKAGE] = { .name = "package", .type = BLOBMSG_TYPE_STRING },
208 [VALIDATE_TYPE] = { .name = "type", .type = BLOBMSG_TYPE_STRING },
209 [VALIDATE_SERVICE] = { .name = "service", .type = BLOBMSG_TYPE_STRING },
213 service_handle_set(struct ubus_context *ctx, struct ubus_object *obj,
214 struct ubus_request_data *req, const char *method,
215 struct blob_attr *msg)
217 struct blob_attr *tb[__SERVICE_SET_MAX], *cur;
218 struct service *s = NULL;
220 bool add = !strcmp(method, "add");
223 blobmsg_parse(service_set_attrs, __SERVICE_SET_MAX, tb, blob_data(msg), blob_len(msg));
224 cur = tb[SERVICE_ATTR_NAME];
226 return UBUS_STATUS_INVALID_ARGUMENT;
228 name = blobmsg_data(cur);
230 s = avl_find_element(&services, name, s, avl);
232 DEBUG(2, "Update service %s\n", name);
233 return service_update(s, tb, add);
236 DEBUG(2, "Create service %s\n", name);
237 s = service_alloc(name);
239 return UBUS_STATUS_UNKNOWN_ERROR;
241 ret = service_update(s, tb, add);
245 avl_insert(&services, &s->avl);
247 service_event("service.start", s->name, NULL);
253 service_dump(struct service *s, int verbose)
255 struct service_instance *in;
258 c = blobmsg_open_table(&b, s->name);
260 if (!avl_is_empty(&s->instances.avl)) {
261 i = blobmsg_open_table(&b, "instances");
262 vlist_for_each_element(&s->instances, in, node)
263 instance_dump(&b, in, verbose);
264 blobmsg_close_table(&b, i);
266 if (verbose && s->trigger)
267 blobmsg_add_blob(&b, s->trigger);
268 if (verbose && !list_empty(&s->validators))
269 service_validate_dump(&b, s);
270 blobmsg_close_table(&b, c);
274 service_handle_list(struct ubus_context *ctx, struct ubus_object *obj,
275 struct ubus_request_data *req, const char *method,
276 struct blob_attr *msg)
278 struct blob_attr *tb[__SERVICE_LIST_ATTR_MAX];
282 blobmsg_parse(service_list_attrs, __SERVICE_LIST_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
284 if (tb[SERVICE_LIST_ATTR_VERBOSE] && blobmsg_get_bool(tb[SERVICE_LIST_ATTR_VERBOSE]))
287 blob_buf_init(&b, 0);
288 avl_for_each_element(&services, s, avl)
289 service_dump(s, verbose);
291 ubus_send_reply(ctx, req, b.head);
297 service_handle_delete(struct ubus_context *ctx, struct ubus_object *obj,
298 struct ubus_request_data *req, const char *method,
299 struct blob_attr *msg)
301 struct blob_attr *tb[__SERVICE_DEL_ATTR_MAX], *cur;
303 struct service_instance *in;
305 blobmsg_parse(service_del_attrs, __SERVICE_DEL_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
307 cur = tb[SERVICE_DEL_ATTR_NAME];
309 return UBUS_STATUS_NOT_FOUND;
311 s = avl_find_element(&services, blobmsg_data(cur), s, avl);
313 return UBUS_STATUS_NOT_FOUND;
315 cur = tb[SERVICE_DEL_ATTR_INSTANCE];
321 in = vlist_find(&s->instances, blobmsg_data(cur), in, node);
323 ERROR("instance %s not found\n", (char *) blobmsg_data(cur));
324 return UBUS_STATUS_NOT_FOUND;
327 vlist_delete(&s->instances, &in->node);
333 service_handle_update(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[__SERVICE_ATTR_MAX], *cur;
340 blobmsg_parse(service_attrs, __SERVICE_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
342 cur = tb[SERVICE_ATTR_NAME];
344 return UBUS_STATUS_INVALID_ARGUMENT;
346 s = avl_find_element(&services, blobmsg_data(cur), s, avl);
348 return UBUS_STATUS_NOT_FOUND;
350 if (!strcmp(method, "update_start"))
351 vlist_update(&s->instances);
353 vlist_flush(&s->instances);
359 service_handle_event(struct ubus_context *ctx, struct ubus_object *obj,
360 struct ubus_request_data *req, const char *method,
361 struct blob_attr *msg)
363 struct blob_attr *tb[__EVENT_MAX];
366 return UBUS_STATUS_INVALID_ARGUMENT;
368 blobmsg_parse(event_policy, __EVENT_MAX, tb, blob_data(msg), blob_len(msg));
369 if (!tb[EVENT_TYPE] || !tb[EVENT_DATA])
370 return UBUS_STATUS_INVALID_ARGUMENT;
372 trigger_event(blobmsg_get_string(tb[EVENT_TYPE]), tb[EVENT_DATA]);
378 service_handle_validate(struct ubus_context *ctx, struct ubus_object *obj,
379 struct ubus_request_data *req, const char *method,
380 struct blob_attr *msg)
382 struct blob_attr *tb[__VALIDATE_MAX];
383 char *p = NULL, *t = NULL;
386 return UBUS_STATUS_INVALID_ARGUMENT;
388 blobmsg_parse(validate_policy, __VALIDATE_MAX, tb, blob_data(msg), blob_len(msg));
389 if (tb[VALIDATE_SERVICE]) {
392 if (tb[VALIDATE_PACKAGE])
393 p = blobmsg_get_string(tb[VALIDATE_PACKAGE]);
395 if (tb[VALIDATE_TYPE])
396 t = blobmsg_get_string(tb[VALIDATE_TYPE]);
398 blob_buf_init(&b, 0);
399 service_validate_dump_all(&b, p, t);
400 ubus_send_reply(ctx, req, b.head);
405 static struct ubus_method main_object_methods[] = {
406 UBUS_METHOD("set", service_handle_set, service_set_attrs),
407 UBUS_METHOD("add", service_handle_set, service_set_attrs),
408 UBUS_METHOD("list", service_handle_list, service_attrs),
409 UBUS_METHOD("delete", service_handle_delete, service_del_attrs),
410 UBUS_METHOD("update_start", service_handle_update, service_attrs),
411 UBUS_METHOD("update_complete", service_handle_update, service_attrs),
412 UBUS_METHOD("event", service_handle_event, event_policy),
413 UBUS_METHOD("validate", service_handle_validate, validate_policy),
416 static struct ubus_object_type main_object_type =
417 UBUS_OBJECT_TYPE("service", main_object_methods);
419 static struct ubus_object main_object = {
421 .type = &main_object_type,
422 .methods = main_object_methods,
423 .n_methods = ARRAY_SIZE(main_object_methods),
427 service_start_early(char *name, char *cmdline)
429 void *instances, *instance, *command, *respawn;
432 blob_buf_init(&b, 0);
433 blobmsg_add_string(&b, "name", name);
434 instances = blobmsg_open_table(&b, "instances");
435 instance = blobmsg_open_table(&b, "instance1");
436 command = blobmsg_open_array(&b, "command");
437 t = strtok(cmdline, " ");
439 blobmsg_add_string(&b, NULL, t);
440 t = strtok(NULL, " ");
442 blobmsg_close_array(&b, command);
443 respawn = blobmsg_open_array(&b, "respawn");
444 blobmsg_add_string(&b, NULL, "3600");
445 blobmsg_add_string(&b, NULL, "1");
446 blobmsg_add_string(&b, NULL, "0");
447 blobmsg_close_array(&b, respawn);
448 blobmsg_close_table(&b, instance);
449 blobmsg_close_table(&b, instances);
451 return service_handle_set(NULL, NULL, NULL, "add", b.head);
454 void service_event(const char *type, const char *service, const char *instance)
459 blob_buf_init(&b, 0);
460 blobmsg_add_string(&b, "service", service);
462 blobmsg_add_string(&b, "instance", instance);
463 ubus_notify(ctx, &main_object, type, b.head, -1);
466 void ubus_init_service(struct ubus_context *_ctx)
469 ubus_add_object(ctx, &main_object);
475 avl_init(&services, avl_strcmp, false, NULL);
476 service_validate_init();