Bug#822635: udev rules for USB device access effective at boot, but not on hotplug

[Michael Biebl]

On Mon, 22 Jan 2018 18:10:58 +0100 Michael Biebl <email at michaelbiebl.de>
wrote:
> Hi Josh!
> 
> On Wed, 21 Dec 2016 20:15:12 +0100 Michael Biebl <biebl at debian.org> wrote:
> > On Fri, 6 May 2016 18:12:27 -0500 Martin Pitt <mpitt at debian.org> wrote:
> > > Control: tag -1 moreinfo
> > > 
> > > Hello Josh,
> > > 
> > > Josh Triplett [2016-04-25 13:48 -0700]:
> > > > ~$ cat /etc/udev/rules.d/99-local-gnubby.rules
> > > > SUBSYSTEMS=="usb", ATTRS{idVendor}=="1050", ATTRS{idProduct}=="0200", TAG+="uaccess"
> > > >
> > > > If I boot with the device attached, this seems to take effect:
> > > >
> > > > However, if I unplug and replug the device, this rule no longer seems to take
> > > > effect:
> > > 
> > > The uaccess tag is evaluated in /lib/udev/rules.d/73-seat-late.rules,
> > > thus 99-* is too late. Can you please move it to e. g.
> > > 70-gnubby.rules? I'm fairly sure it will work then, but I'll keep the
> > > bug open until you confirm, just in case.
> > > 
> > 
> > The dump from Josh shows, that the uaccess udev property is properly
> > set. So I don't think it's an udev rules ordering issue.
> > 
> > I think the problem rather is, that you are already logged in and the
> > ACLs are only applied on login or when the session becomes active.
> > 
> > I assume if you log out and re-login after the hotplug, the ACL is
> > properly applied?
> 
> Any updates on this bug report? Is there still something which needs to
> be addressed on the systemd side? If so we need to further investigate
> the issue.

Josh, any updates on this?




-- 
Why is it that all of the instruments seeking intelligent life in the
universe are pointed away from Earth?

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