* Greg Kroah-Hartman:
quoted hunk
+The focus of this document is an overview of the low-level, native kernel D-Bus
+transport called kdbus. Kdbus exposes its functionality via files in a
+filesystem called 'kdbusfs'. All communication between processes takes place
+via ioctls on files exposed through the mount point of a kdbusfs. The default
+mount point of kdbusfs is /sys/fs/kdbus.
Does this mean the bus does not enforce the correctness of the D-Bus
introspection metadata? That's really unfortunate. Classic D-Bus
does not do this, either, and combined with the variety of approaches
used to implement D-Bus endpoints, it makes it really difficult to
figure out what D-Bus services, exactly, a process provides.