User bus?

Thiago Macieira thiago at
Tue Mar 4 02:22:17 PST 2008

On Tuesday 04 March 2008 11:05:33 Patryk Zawadzki wrote:
> It shouldn't be hard to change your effective uid before connecting to
> the specific session and it's not likely that anyone but root (or some
> suid helper for - say - copying clipboard contents between two
> sessions) would ever need to connect to other sessions (it would be
> insecure to allow anyone to do so). Such actions would require a
> "push" instead of subscription in order to work and in many cases
> would not be safe to be broadcasted using the system bus (like the
> mentioned "copy foo between sessions" case as "foo" could be something
> confidential). Another solution would be to broadcast a signal telling
> "please establish a private bus connection" but that's so much harder
> to do properly.

If it is confidential, you do *not* want to use the session bus. You want to 
keep everything in the system bus or use a separate data mechanism.

As for clipboards, let's not reinvent the wheel. Use two X11 connections 
instead of transferring the data over D-Bus.

  Thiago Macieira  -  thiago (AT) - thiago (AT)
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