ubusd: rename goto label from `error` to `out`

[project/ubus.git] / ubusd_proto.c

diff --git a/ubusd_proto.c b/ubusd_proto.c
index d2feed9..b084b86 100644 (file)
--- a/ubusd_proto.c
+++ b/ubusd_proto.c
@@ -80,12 +80,17 @@ void
 ubus_proto_send_msg_from_blob(struct ubus_client *cl, struct ubus_msg_buf *ub,
                        uint8_t type)
 {
+       /* keep the fd to be passed if it is UBUS_MSG_INVOKE */
+       int fd = ub->fd;
        ub = ubus_reply_from_blob(ub, true);
        if (!ub)
                return;
 
        ub->hdr.type = type;
-       ubus_msg_send(cl, ub, true);
+       ub->fd = fd;
+
+       ubus_msg_send(cl, ub);
+       ubus_msg_free(ub);
 }
 
 static bool ubusd_send_hello(struct ubus_client *cl)
@@ -98,14 +103,15 @@ static bool ubusd_send_hello(struct ubus_client *cl)
                return false;
 
        ubus_msg_init(ub, UBUS_MSG_HELLO, 0, cl->id.id);
-       ubus_msg_send(cl, ub, true);
+       ubus_msg_send(cl, ub);
+       ubus_msg_free(ub);
        return true;
 }
 
 static int ubusd_send_pong(struct ubus_client *cl, struct ubus_msg_buf *ub, struct blob_attr **attr)
 {
        ub->hdr.type = UBUS_MSG_DATA;
-       ubus_msg_send(cl, ub, false);
+       ubus_msg_send(cl, ub);
        return 0;
 }
 
@@ -270,7 +276,6 @@ static int ubusd_handle_invoke(struct ubus_client *cl, struct ubus_msg_buf *ub,
        blob_buf_init(&b, 0);
 
        ubusd_forward_invoke(cl, obj, method, ub, attr[UBUS_ATTR_DATA]);
-       ubus_msg_free(ub);
 
        return -1;
 }
@@ -318,7 +323,6 @@ static int ubusd_handle_notify(struct ubus_client *cl, struct ubus_msg_buf *ub,
                        blob_put_int8(&b, UBUS_ATTR_NO_REPLY, 1);
                ubusd_forward_invoke(cl, s->subscriber, method, ub, attr[UBUS_ATTR_DATA]);
        }
-       ubus_msg_free(ub);
 
        return -1;
 }
@@ -341,25 +345,22 @@ static int ubusd_handle_response(struct ubus_client *cl, struct ubus_msg_buf *ub
        if (!attr[UBUS_ATTR_OBJID] ||
            (ub->hdr.type == UBUS_MSG_STATUS && !attr[UBUS_ATTR_STATUS]) ||
            (ub->hdr.type == UBUS_MSG_DATA && !attr[UBUS_ATTR_DATA]))
-               goto error;
+               goto out;
 
        obj = ubusd_find_object(blob_get_u32(attr[UBUS_ATTR_OBJID]));
        if (!obj)
-               goto error;
+               goto out;
 
        if (cl != obj->client)
-               goto error;
+               goto out;
 
        cl = ubusd_get_client_by_id(ub->hdr.peer);
        if (!cl)
-               goto error;
+               goto out;
 
        ub->hdr.peer = blob_get_u32(attr[UBUS_ATTR_OBJID]);
-       ubus_msg_send(cl, ub, true);
-       return -1;
-
-error:
-       ubus_msg_free(ub);
+       ubus_msg_send(cl, ub);
+out:
        return -1;
 }
 
@@ -447,21 +448,23 @@ void ubusd_proto_receive_message(struct ubus_client *cl, struct ubus_msg_buf *ub
        if (ub->hdr.type < __UBUS_MSG_LAST)
                cb = handlers[ub->hdr.type];
 
-       if (ub->hdr.type != UBUS_MSG_STATUS)
+       if (ub->hdr.type != UBUS_MSG_STATUS && ub->hdr.type != UBUS_MSG_INVOKE)
                ubus_msg_close_fd(ub);
 
+       /* Note: no callback should free the `ub` buffer
+                that's always done right after the callback finishes */
        if (cb)
                ret = cb(cl, ub, ubus_parse_msg(ub->data));
        else
                ret = UBUS_STATUS_INVALID_COMMAND;
 
+       ubus_msg_free(ub);
+
        if (ret == -1)
                return;
 
-       ubus_msg_free(ub);
-
        *retmsg_data = htonl(ret);
-       ubus_msg_send(cl, retmsg, false);
+       ubus_msg_send(cl, retmsg);
 }
 
 struct ubus_client *ubusd_proto_new_client(int fd, uloop_fd_handler cb)
@@ -522,7 +525,8 @@ void ubus_notify_subscription(struct ubus_object *obj)
                return;
 
        ubus_msg_init(ub, UBUS_MSG_NOTIFY, ++obj->invoke_seq, 0);
-       ubus_msg_send(obj->client, ub, true);
+       ubus_msg_send(obj->client, ub);
+       ubus_msg_free(ub);
 }
 
 void ubus_notify_unsubscribe(struct ubus_subscription *s)
@@ -536,7 +540,8 @@ void ubus_notify_unsubscribe(struct ubus_subscription *s)
        ub = ubus_msg_from_blob(false);
        if (ub != NULL) {
                ubus_msg_init(ub, UBUS_MSG_UNSUBSCRIBE, ++s->subscriber->invoke_seq, 0);
-               ubus_msg_send(s->subscriber->client, ub, true);
+               ubus_msg_send(s->subscriber->client, ub);
+               ubus_msg_free(ub);
        }
 
        ubus_unsubscribe(s);