X-Git-Url: http://git.archive.openwrt.org/?p=project%2Fubus.git;a=blobdiff_plain;f=ubusd_obj.c;h=08314732567e7c03f066ae8d4c5faad22f381eff;hp=5e08fab241f74daf5af626bafb75db9588618e25;hb=6f4e11e1db399074273944329883f9c35e7daef6;hpb=dbd4c2f121be08e514828f2533687b145a6e16dd

diff --git a/ubusd_obj.c b/ubusd_obj.c
index 5e08fab..0831473 100644
--- a/ubusd_obj.c
+++ b/ubusd_obj.c
@@ -1,3 +1,16 @@
+/*
+ * Copyright (C) 2011 Felix Fietkau <nbd@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 2.1
+ * as published by the Free Software Foundation
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
 #include "ubusd.h"
 #include "ubusd_obj.h"
 
@@ -31,7 +44,7 @@ static bool ubus_create_obj_method(struct ubus_object_type *type, struct blob_at
 	if (!m)
 		return false;
 
-	list_add(&m->list, &type->methods);
+	list_add_tail(&m->list, &type->methods);
 	memcpy(m->data, attr, bloblen);
 	m->name = blobmsg_name(m->data);
 
@@ -45,9 +58,12 @@ static struct ubus_object_type *ubus_create_obj_type(struct blob_attr *sig)
 	int rem;
 
 	type = calloc(1, sizeof(*type));
+	if (!type)
+		return NULL;
+
 	type->refcount = 1;
 
-	if (!ubus_alloc_id(&obj_types, &type->id))
+	if (!ubus_alloc_id(&obj_types, &type->id, 0))
 		goto error_free;
 
 	INIT_LIST_HEAD(&type->methods);
@@ -85,63 +101,136 @@ static struct ubus_object_type *ubus_get_obj_type(uint32_t obj_id)
 	return type;
 }
 
+struct ubus_object *ubusd_create_object_internal(struct ubus_object_type *type, uint32_t id)
+{
+	struct ubus_object *obj;
+
+	obj = calloc(1, sizeof(*obj));
+	if (!obj)
+		return NULL;
+
+	if (!ubus_alloc_id(&objects, &obj->id, id))
+		goto error_free;
+
+	obj->type = type;
+	INIT_LIST_HEAD(&obj->list);
+	INIT_LIST_HEAD(&obj->events);
+	INIT_LIST_HEAD(&obj->subscribers);
+	INIT_LIST_HEAD(&obj->target_list);
+	if (type)
+		type->refcount++;
+
+	return obj;
+
+error_free:
+	free(obj);
+	return NULL;
+}
+
 struct ubus_object *ubusd_create_object(struct ubus_client *cl, struct blob_attr **attr)
 {
 	struct ubus_object *obj;
 	struct ubus_object_type *type = NULL;
 
 	if (attr[UBUS_ATTR_OBJTYPE])
-		type = ubus_get_obj_type(blob_get_int32(attr[UBUS_ATTR_OBJTYPE]));
+		type = ubus_get_obj_type(blob_get_u32(attr[UBUS_ATTR_OBJTYPE]));
 	else if (attr[UBUS_ATTR_SIGNATURE])
 		type = ubus_create_obj_type(attr[UBUS_ATTR_SIGNATURE]);
 
-	if (!type)
-		return NULL;
+	obj = ubusd_create_object_internal(type, 0);
+	if (type)
+		ubus_unref_object_type(type);
 
-	obj = calloc(1, sizeof(*obj));
-	if (!ubus_alloc_id(&objects, &obj->id))
-		goto error_free;
+	if (!obj)
+		return NULL;
 
 	if (attr[UBUS_ATTR_OBJPATH]) {
+		if (ubusd_acl_check(cl, blob_data(attr[UBUS_ATTR_OBJPATH]), NULL, UBUS_ACL_PUBLISH))
+			goto free;
+
 		obj->path.key = strdup(blob_data(attr[UBUS_ATTR_OBJPATH]));
-		if (avl_insert(&path, &obj->path) != 0)
-			goto error_del_id;
+		if (!obj->path.key)
+			goto free;
+
+		if (avl_insert(&path, &obj->path) != 0) {
+			free((void *) obj->path.key);
+			obj->path.key = NULL;
+			goto free;
+		}
+		ubusd_send_obj_event(obj, true);
 	}
 
-	obj->type = type;
+	obj->client = cl;
 	list_add(&obj->list, &cl->objects);
 
 	return obj;
 
-error_del_id:
-	free(obj->path.key);
-	ubus_free_id(&objects, &obj->id);
-error_free:
-	ubus_unref_object_type(type);
-	free(obj);
+free:
+	ubusd_free_object(obj);
 	return NULL;
 }
 
+void ubus_subscribe(struct ubus_object *obj, struct ubus_object *target)
+{
+	struct ubus_subscription *s;
+	bool first = list_empty(&target->subscribers);
+
+	s = calloc(1, sizeof(*s));
+	if (!s)
+		return;
+
+	s->subscriber = obj;
+	s->target = target;
+	list_add(&s->list, &target->subscribers);
+	list_add(&s->target_list, &obj->target_list);
+
+	if (first)
+		ubus_notify_subscription(target);
+}
+
+void ubus_unsubscribe(struct ubus_subscription *s)
+{
+	struct ubus_object *obj = s->target;
+
+	list_del(&s->list);
+	list_del(&s->target_list);
+	free(s);
+
+	if (list_empty(&obj->subscribers))
+		ubus_notify_subscription(obj);
+}
+
 void ubusd_free_object(struct ubus_object *obj)
 {
+	struct ubus_subscription *s, *tmp;
+
+	list_for_each_entry_safe(s, tmp, &obj->target_list, target_list) {
+		ubus_unsubscribe(s);
+	}
+	list_for_each_entry_safe(s, tmp, &obj->subscribers, list) {
+		ubus_notify_unsubscribe(s);
+	}
+
+	ubusd_event_cleanup_object(obj);
 	if (obj->path.key) {
+		ubusd_send_obj_event(obj, false);
 		avl_delete(&path, &obj->path);
-		free(obj->path.key);
+		free((void *) obj->path.key);
 	}
-	list_del(&obj->list);
+	if (!list_empty(&obj->list))
+		list_del(&obj->list);
 	ubus_free_id(&objects, &obj->id);
-	ubus_unref_object_type(obj->type);
+	if (obj->type)
+		ubus_unref_object_type(obj->type);
 	free(obj);
 }
 
-static int ubus_cmp_path(const void *k1, const void *k2, void *ptr)
-{
-	return strcmp(k1, k2);
-}
-
-static void __init ubusd_obj_init(void)
+static void __constructor ubusd_obj_init(void)
 {
 	ubus_init_id_tree(&objects);
 	ubus_init_id_tree(&obj_types);
-	avl_init(&path, ubus_cmp_path, false, NULL);
+	ubus_init_string_tree(&path, false);
+	ubusd_event_init();
+	ubusd_acl_init();
+	ubusd_monitor_init();
 }