+struct watch_data {
+ unsigned int id;
+ int index;
+ connman_rtnl_link_cb_t newlink;
+ void *user_data;
+};
+
+static GSList *watch_list = NULL;
+static unsigned int watch_id = 0;
+
+/**
+ * connman_rtnl_add_newlink_watch:
+ * @index: network device index
+ * @callback: callback function
+ * @user_data: callback data;
+ *
+ * Add a new RTNL watch for newlink events
+ *
+ * Returns: %0 on failure and a unique id on success
+ */
+unsigned int connman_rtnl_add_newlink_watch(int index,
+ connman_rtnl_link_cb_t callback, void *user_data)
+{
+ struct watch_data *watch;
+
+ watch = g_try_new0(struct watch_data, 1);
+ if (watch == NULL)
+ return 0;
+
+ watch->id = ++watch_id;
+ watch->index = index;
+
+ watch->newlink = callback;
+ watch->user_data = user_data;
+
+ watch_list = g_slist_prepend(watch_list, watch);
+
+ DBG("id %d", watch->id);
+
+ return watch->id;
+}
+
+/**
+ * connman_rtnl_remove_watch:
+ * @id: watch identifier
+ *
+ * Remove the RTNL watch for the identifier
+ */
+void connman_rtnl_remove_watch(unsigned int id)
+{
+ GSList *list;
+
+ DBG("id %d", id);
+
+ if (id == 0)
+ return;
+
+ for (list = watch_list; list; list = list->next) {
+ struct watch_data *watch = list->data;
+
+ if (watch->id == id) {
+ watch_list = g_slist_remove(watch_list, watch);
+ g_free(watch);
+ break;
+ }
+ }
+}
+