On Fri, Jun 25, 2010 at 11:12:49PM +1000, Christopher James Halse Rogers wrote: > It seems that almost all of the work required to run X without root > privileges has been done, and there are just a couple of loose ends to > tie up before it can work - at least for KMS drivers. > > Apart from opening /proc/mtrr for writing, which isn't used by any of > the drivers I've inspected and certainly by none of the KMS drivers, it > seems the last problem is backlight handling which requires > prodding /sys/class/backlight/*/brightness. It seems that the way to > deal with this would be to get a /dev/backlight device interface for > which udev could set appropriate permissions. This would also clean the > Intel DDX code somewhat as it wouldn't have to iterate over the list of > possible /sys paths.
Why not just have ConsoleKit set the ownership, presumably as you'd have it doing for /dev/input? That still doesn't solve the revoke() problem though (i.e. what happens when you switch to another session - the original server could still have its /dev/input FDs open, leaking all your passwords). Cheers, Daniel
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