sharp-askpass.conf

<!DOCTYPE busconfig PUBLIC
 "-//freedesktop//DTD D-BUS Bus Configuration 1.0//EN"
 "http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd">
<busconfig>
	<!-- Only allow root and lp to send, and root and current user to own the name -->
        <policy user="root">
                <allow own="org.cups.sharp.Passwd"/>

                <allow send_destination="org.cups.sharp.Passwd"
                       send_interface="org.cups.sharp.Passwd"/>
                <allow send_destination="org.cups.sharp.Passwd"
                       send_interface="org.freedesktop.DBus.Introspectable"/>
        </policy>
        <policy user="lp">
                <allow send_destination="org.cups.sharp.Passwd"
                       send_interface="org.cups.sharp.Passwd"/>
                <allow send_destination="org.cups.sharp.Passwd"
                       send_interface="org.freedesktop.DBus.Introspectable"/>
        </policy>
        <policy at_console="true">
                <allow own="org.cups.sharp.Passwd"/>
        </policy>

        <limit name="max_replies_per_connection">512</limit>
</busconfig>