[SELinux] Return the context of the dbus-daemon process if asking about org.freedesktop.DBus

Submitted by Laurent Bigonville

Assigned to D-Bus Maintainers

Hi,

Currently when asked the SELinux context of the owner of org.freedesktop.DBus, the dbus-daemon is returning an error.

In the same situation when asked about the Unix user or the PID, the daemon would return its own user or pid.

The following patch is doing the same for the SELinux context by returning the daemon one

Version: git master