dbus_connection_send not working on a Windows machine?

Ralf Habacker ralf.habacker at freenet.de
Fri Dec 24 04:24:04 PST 2010

Am 16.11.2010 17:55, schrieb Miller, Douglas K. CONT NAVAIR 2109, 1, N139:
> I did replace "dbus_connection_set_unix_user_function(..)" with dbus_connection_set_unix_windows_function(..) and the "DBusAllowWindowsUserFunction function" parameter points to a function that returns true.
> The wireshark running on the windows machine says that the response to the Linux machine is "REJECTED EXTERNAL DBUS_COOKIE_SHA1 ANONYMOUS".
> Has anybody got a clue as to why this is happening?
> -----Original Message-----
> From: dbus-bounces+douglas.k.miller=navy.mil at lists.freedesktop.org [mailto:dbus-bounces+douglas.k.miller=navy.mil at lists.freedesktop.org] On Behalf Of Miller, Douglas K. CONT NAVAIR 2109, 1,N139
> Sent: Tuesday, November 16, 2010 9:30 AM
> To: dbus at lists.freedesktop.org
> Subject: dbus_connection_send not working on a Windows machine?
> I have and adaptation of Alban Créquy's DBus Daemon Proxy (http://git.collabora.co.uk/?p=user/alban/dbus-daemon-proxy;a=summary) that handles multiple connections running a Linux machine and a Windows 2008 server machine that are on the same network.  Thanks Alban Créquy for sharing that with us.  The Linux machine successfully responds to 'Hello' messages coming from the Windows 2008 server machine with a "Welcome".  The problem is that the Windows machine fails to respond with a "Welcome" message when responding to the Linux machine's "Hello".  "dbus_connection_send(..)" does get called for the "Welcome" message but it seems not to get sent.
> Is this a window configuration problem or is it something else I'm missing?

In bus_driver_handle_hello () which handles the hello message  there is 
the following code

   if (bus_connection_is_active (connection))
       /* We already handled an Hello message for this connection. */
       dbus_set_error (error, DBUS_ERROR_FAILED,
                       "Already handled an Hello message");
       return FALSE;

calling "Hello" on windows command line reports this error:

 >qdbus  org.freedesktop.DBus /  org.freedesktop.DBus.Hello
Error: org.freedesktop.DBus.Error.Failed
Already handled an Hello message

which looks as expected after the connection is active.


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