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;
29 service_instance_add(struct service *s, struct blob_attr *attr)
31 struct service_instance *in;
33 if (blobmsg_type(attr) != BLOBMSG_TYPE_TABLE)
36 in = calloc(1, sizeof(*in));
40 instance_init(in, s, attr);
41 vlist_add(&s->instances, &in->node, (void *) in->name);
45 service_instance_update(struct vlist_tree *tree, struct vlist_node *node_new,
46 struct vlist_node *node_old)
48 struct service_instance *in_o = NULL, *in_n = NULL;
51 in_o = container_of(node_old, struct service_instance, node);
54 in_n = container_of(node_new, struct service_instance, node);
57 DEBUG(2, "Update instance %s::%s\n", in_o->srv->name, in_o->name);
58 instance_update(in_o, in_n);
61 DEBUG(2, "Free instance %s::%s\n", in_o->srv->name, in_o->name);
65 DEBUG(2, "Create instance %s::%s\n", in_n->srv->name, in_n->name);
70 static struct service *
71 service_alloc(const char *name)
76 s = calloc_a(sizeof(*s), &new_name, strlen(name) + 1);
77 strcpy(new_name, name);
79 vlist_init(&s->instances, avl_strcmp, service_instance_update);
80 s->instances.keep_old = true;
83 INIT_LIST_HEAD(&s->validators);
91 SERVICE_SET_INSTANCES,
97 static const struct blobmsg_policy service_set_attrs[__SERVICE_SET_MAX] = {
98 [SERVICE_SET_NAME] = { "name", BLOBMSG_TYPE_STRING },
99 [SERVICE_SET_SCRIPT] = { "script", BLOBMSG_TYPE_STRING },
100 [SERVICE_SET_INSTANCES] = { "instances", BLOBMSG_TYPE_TABLE },
101 [SERVICE_SET_TRIGGER] = { "triggers", BLOBMSG_TYPE_ARRAY },
102 [SERVICE_SET_VALIDATE] = { "validate", BLOBMSG_TYPE_ARRAY },
106 service_update(struct service *s, struct blob_attr *config, struct blob_attr **tb, bool add)
108 struct blob_attr *cur;
117 service_validate_del(s);
119 if (tb[SERVICE_SET_TRIGGER] && blobmsg_data_len(tb[SERVICE_SET_TRIGGER])) {
120 s->trigger = malloc(blob_pad_len(tb[SERVICE_SET_TRIGGER]));
123 memcpy(s->trigger, tb[SERVICE_SET_TRIGGER], blob_pad_len(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 vlist_flush_all(&s->instances);
151 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 int ret = UBUS_STATUS_INVALID_ARGUMENT;
221 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];
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, msg, 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, msg, tb, add);
245 avl_insert(&services, &s->avl);
255 service_dump(struct service *s, int verbose)
257 struct service_instance *in;
260 c = blobmsg_open_table(&b, s->name);
262 if (!avl_is_empty(&s->instances.avl)) {
263 i = blobmsg_open_table(&b, "instances");
264 vlist_for_each_element(&s->instances, in, node)
265 instance_dump(&b, in, verbose);
266 blobmsg_close_table(&b, i);
268 if (verbose && s->trigger)
269 blobmsg_add_blob(&b, s->trigger);
270 if (verbose && !list_empty(&s->validators))
271 service_validate_dump(&b, s);
272 blobmsg_close_table(&b, c);
276 service_handle_list(struct ubus_context *ctx, struct ubus_object *obj,
277 struct ubus_request_data *req, const char *method,
278 struct blob_attr *msg)
280 struct blob_attr *tb[__SERVICE_LIST_ATTR_MAX];
284 blobmsg_parse(service_list_attrs, __SERVICE_LIST_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
286 if (tb[SERVICE_LIST_ATTR_VERBOSE] && blobmsg_get_bool(tb[SERVICE_LIST_ATTR_VERBOSE]))
289 blob_buf_init(&b, 0);
290 avl_for_each_element(&services, s, avl)
291 service_dump(s, verbose);
293 ubus_send_reply(ctx, req, b.head);
299 service_handle_delete(struct ubus_context *ctx, struct ubus_object *obj,
300 struct ubus_request_data *req, const char *method,
301 struct blob_attr *msg)
303 struct blob_attr *tb[__SERVICE_DEL_ATTR_MAX], *cur;
305 struct service_instance *in;
307 blobmsg_parse(service_del_attrs, __SERVICE_DEL_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
309 cur = tb[SERVICE_DEL_ATTR_NAME];
311 return UBUS_STATUS_NOT_FOUND;
313 s = avl_find_element(&services, blobmsg_data(cur), s, avl);
315 return UBUS_STATUS_NOT_FOUND;
317 cur = tb[SERVICE_DEL_ATTR_INSTANCE];
323 in = vlist_find(&s->instances, blobmsg_data(cur), in, node);
325 ERROR("instance %s not found\n", (char *) blobmsg_data(cur));
326 return UBUS_STATUS_NOT_FOUND;
329 vlist_delete(&s->instances, &in->node);
335 service_handle_update(struct ubus_context *ctx, struct ubus_object *obj,
336 struct ubus_request_data *req, const char *method,
337 struct blob_attr *msg)
339 struct blob_attr *tb[__SERVICE_ATTR_MAX], *cur;
342 blobmsg_parse(service_attrs, __SERVICE_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
344 cur = tb[SERVICE_ATTR_NAME];
346 return UBUS_STATUS_INVALID_ARGUMENT;
348 s = avl_find_element(&services, blobmsg_data(cur), s, avl);
350 return UBUS_STATUS_NOT_FOUND;
352 if (!strcmp(method, "update_start"))
353 vlist_update(&s->instances);
355 vlist_flush(&s->instances);
361 service_handle_event(struct ubus_context *ctx, struct ubus_object *obj,
362 struct ubus_request_data *req, const char *method,
363 struct blob_attr *msg)
365 struct blob_attr *tb[__EVENT_MAX];
368 return UBUS_STATUS_INVALID_ARGUMENT;
370 blobmsg_parse(event_policy, __EVENT_MAX, tb, blob_data(msg), blob_len(msg));
371 if (!tb[EVENT_TYPE] || !tb[EVENT_DATA])
372 return UBUS_STATUS_INVALID_ARGUMENT;
374 trigger_event(blobmsg_get_string(tb[EVENT_TYPE]), tb[EVENT_DATA]);
380 service_handle_validate(struct ubus_context *ctx, struct ubus_object *obj,
381 struct ubus_request_data *req, const char *method,
382 struct blob_attr *msg)
384 struct blob_attr *tb[__VALIDATE_MAX];
385 char *p = NULL, *t = NULL;
388 return UBUS_STATUS_INVALID_ARGUMENT;
390 blobmsg_parse(validate_policy, __VALIDATE_MAX, tb, blob_data(msg), blob_len(msg));
391 if (tb[VALIDATE_SERVICE]) {
394 if (tb[VALIDATE_PACKAGE])
395 p = blobmsg_get_string(tb[VALIDATE_PACKAGE]);
397 if (tb[VALIDATE_TYPE])
398 t = blobmsg_get_string(tb[VALIDATE_TYPE]);
400 blob_buf_init(&b, 0);
401 service_validate_dump_all(&b, p, t);
402 ubus_send_reply(ctx, req, b.head);
407 static struct ubus_method main_object_methods[] = {
408 UBUS_METHOD("set", service_handle_set, service_set_attrs),
409 UBUS_METHOD("add", service_handle_set, service_set_attrs),
410 UBUS_METHOD("list", service_handle_list, service_attrs),
411 UBUS_METHOD("delete", service_handle_delete, service_del_attrs),
412 UBUS_METHOD("update_start", service_handle_update, service_attrs),
413 UBUS_METHOD("update_complete", service_handle_update, service_attrs),
414 UBUS_METHOD("event", service_handle_event, event_policy),
415 UBUS_METHOD("validate", service_handle_validate, validate_policy),
418 static struct ubus_object_type main_object_type =
419 UBUS_OBJECT_TYPE("service", main_object_methods);
421 static struct ubus_object main_object = {
423 .type = &main_object_type,
424 .methods = main_object_methods,
425 .n_methods = ARRAY_SIZE(main_object_methods),
429 service_start_early(char *name, char *cmdline)
431 void *instances, *instance, *command, *respawn;
434 blob_buf_init(&b, 0);
435 blobmsg_add_string(&b, "name", name);
436 instances = blobmsg_open_table(&b, "instances");
437 instance = blobmsg_open_table(&b, "instance1");
438 command = blobmsg_open_array(&b, "command");
439 t = strtok(cmdline, " ");
441 blobmsg_add_string(&b, NULL, t);
442 t = strtok(NULL, " ");
444 blobmsg_close_array(&b, command);
445 respawn = blobmsg_open_array(&b, "respawn");
446 blobmsg_add_string(&b, NULL, "3600");
447 blobmsg_add_string(&b, NULL, "1");
448 blobmsg_add_string(&b, NULL, "0");
449 blobmsg_close_array(&b, respawn);
450 blobmsg_close_table(&b, instance);
451 blobmsg_close_table(&b, instances);
453 return service_handle_set(NULL, NULL, NULL, "add", b.head);
456 void ubus_init_service(struct ubus_context *ctx)
458 ubus_add_object(ctx, &main_object);
464 avl_init(&services, avl_strcmp, false, NULL);
465 service_validate_init();