1 #include <libubox/avl-cmp.h>
6 struct avl_tree services;
7 static struct blob_buf b;
10 service_instance_add(struct service *s, struct blob_attr *attr)
12 struct service_instance *in;
13 const char *name = blobmsg_name(attr);
15 if (blobmsg_type(attr) != BLOBMSG_TYPE_TABLE)
18 in = calloc(1, sizeof(*in));
22 instance_init(in, s, attr);
23 vlist_add(&s->instances, &in->node, (void *) name);
27 service_instance_update(struct vlist_tree *tree, struct vlist_node *node_new,
28 struct vlist_node *node_old)
30 struct service_instance *in_o = NULL, *in_n = NULL;
33 in_o = container_of(node_old, struct service_instance, node);
36 in_n = container_of(node_new, struct service_instance, node);
39 DPRINTF("Update instance %s::%s\n", in_o->srv->name, in_o->name);
40 instance_update(in_o, in_n);
43 DPRINTF("Free instance %s::%s\n", in_o->srv->name, in_o->name);
44 instance_stop(in_o, false);
47 DPRINTF("Create instance %s::%s\n", in_n->srv->name, in_n->name);
52 static struct service *
53 service_alloc(const char *name)
57 s = calloc(1, sizeof(*s));
58 vlist_init(&s->instances, avl_strcmp, service_instance_update);
59 s->instances.keep_old = true;
67 SERVICE_SET_INSTANCES,
71 static const struct blobmsg_policy service_set_attrs[__SERVICE_SET_MAX] = {
72 [SERVICE_SET_NAME] = { "name", BLOBMSG_TYPE_STRING },
73 [SERVICE_SET_SCRIPT] = { "script", BLOBMSG_TYPE_STRING },
74 [SERVICE_SET_INSTANCES] = { "instances", BLOBMSG_TYPE_TABLE },
79 service_update(struct service *s, struct blob_attr *config, struct blob_attr **tb)
81 struct blob_attr *old_config = s->config;
82 struct blob_attr *cur;
85 /* only the pointer changes, the content stays the same,
86 * no avl update necessary */
87 s->name = s->avl.key = blobmsg_data(tb[SERVICE_SET_NAME]);
90 if (tb[SERVICE_SET_INSTANCES]) {
91 vlist_update(&s->instances);
92 blobmsg_for_each_attr(cur, tb[SERVICE_SET_INSTANCES], rem) {
93 service_instance_add(s, cur);
95 vlist_flush(&s->instances);
104 service_delete(struct service *s)
106 vlist_flush_all(&s->instances);
107 avl_delete(&services, &s->avl);
117 static const struct blobmsg_policy service_attrs[__SERVICE_ATTR_MAX] = {
118 [SERVICE_ATTR_NAME] = { "name", BLOBMSG_TYPE_STRING },
123 service_handle_set(struct ubus_context *ctx, struct ubus_object *obj,
124 struct ubus_request_data *req, const char *method,
125 struct blob_attr *msg)
127 struct blob_attr *tb[__SERVICE_SET_MAX], *cur;
128 struct service *s = NULL;
130 int ret = UBUS_STATUS_INVALID_ARGUMENT;
132 msg = blob_memdup(msg);
134 return UBUS_STATUS_UNKNOWN_ERROR;
136 blobmsg_parse(service_set_attrs, __SERVICE_SET_MAX, tb, blob_data(msg), blob_len(msg));
137 cur = tb[SERVICE_ATTR_NAME];
141 name = blobmsg_data(cur);
143 s = avl_find_element(&services, name, s, avl);
145 DPRINTF("Update service %s\n", name);
146 return service_update(s, msg, tb);
149 DPRINTF("Create service %s\n", name);
150 s = service_alloc(name);
152 return UBUS_STATUS_UNKNOWN_ERROR;
154 ret = service_update(s, msg, tb);
158 avl_insert(&services, &s->avl);
168 service_dump(struct service *s)
170 struct service_instance *in;
173 c = blobmsg_open_table(&b, s->name);
174 i = blobmsg_open_table(&b, "instances");
175 vlist_for_each_element(&s->instances, in, node)
176 instance_dump(&b, in);
177 blobmsg_close_table(&b, i);
178 blobmsg_close_table(&b, c);
182 service_handle_list(struct ubus_context *ctx, struct ubus_object *obj,
183 struct ubus_request_data *req, const char *method,
184 struct blob_attr *msg)
188 blob_buf_init(&b, 0);
189 avl_for_each_element(&services, s, avl)
192 ubus_send_reply(ctx, req, b.head);
198 service_handle_delete(struct ubus_context *ctx, struct ubus_object *obj,
199 struct ubus_request_data *req, const char *method,
200 struct blob_attr *msg)
202 struct blob_attr *tb[__SERVICE_ATTR_MAX], *cur;
203 struct service *s, *tmp;
205 blobmsg_parse(service_attrs, __SERVICE_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
207 cur = tb[SERVICE_ATTR_NAME];
209 avl_for_each_element_safe(&services, s, avl, tmp)
214 s = avl_find_element(&services, blobmsg_data(cur), s, avl);
216 return UBUS_STATUS_NOT_FOUND;
223 service_handle_update(struct ubus_context *ctx, struct ubus_object *obj,
224 struct ubus_request_data *req, const char *method,
225 struct blob_attr *msg)
227 struct blob_attr *tb[__SERVICE_ATTR_MAX], *cur;
230 blobmsg_parse(service_attrs, __SERVICE_ATTR_MAX, tb, blob_data(msg), blob_len(msg));
232 cur = tb[SERVICE_ATTR_NAME];
234 return UBUS_STATUS_INVALID_ARGUMENT;
236 s = avl_find_element(&services, blobmsg_data(cur), s, avl);
238 return UBUS_STATUS_NOT_FOUND;
240 if (!strcmp(method, "update_start"))
241 vlist_update(&s->instances);
243 vlist_flush(&s->instances);
248 static struct ubus_method main_object_methods[] = {
249 UBUS_METHOD("set", service_handle_set, service_set_attrs),
250 UBUS_METHOD("list", service_handle_list, service_attrs),
251 UBUS_METHOD("delete", service_handle_delete, service_attrs),
252 UBUS_METHOD("update_start", service_handle_update, service_attrs),
253 UBUS_METHOD("update_complete", service_handle_update, service_attrs),
256 static struct ubus_object_type main_object_type =
257 UBUS_OBJECT_TYPE("service", main_object_methods);
259 static struct ubus_object main_object = {
261 .type = &main_object_type,
262 .methods = main_object_methods,
263 .n_methods = ARRAY_SIZE(main_object_methods),
266 void procd_init_service(struct ubus_context *ctx)
268 avl_init(&services, avl_strcmp, false, NULL);
269 ubus_add_object(ctx, &main_object);