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Re: How to change default umask in Stretch?

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	Hi.

An update for the archives.

On Wed, 9 Aug 2017 08:09:16 -0400
Greg Wooledge <wooledg@eeg.ccf.org> wrote:

> On Tue, Aug 08, 2017 at 01:27:02PM +0300, Reco wrote:
> > Or find gnome-session (or gnome-shell - I don't recall who exactly
> > spawns user applications in GNOME) process pid, execute something like
> > this on login:
> > 
> > gdb -p $(pidof gnome-session) -ex 'p umask(0077)' --batch
> > 
> > You'll need gdb to be installed, of course.
> 
> It's beginning to sound like GNOME applications aren't even launched
> by GNOME at all, but rather by systemd/dbus.  Somehow.

Couple of experiments later, which involved strace, ltrace *and*
auditctl I confirm that GNOME applications are launched by dbus-daemon
indeed. Not 'system' one, but 'session' dbus-daemon.
If you do it via gnome-shell anyway.


> I'd be interested in hearing the results of your gdb experiment being
> performed on the user session dbus daemon process, by someone using
> GNOME.  I have no idea whether it would actually work, but if it does,
> that would help us understand how this... desktop... is put together.

So, once I pinpointed spawning process, I poked it with gdb and it
changed the umask. So, correct hack for the umask in GNOME (as of
stretch) is:

gdb -p $(pgrep -U $(id -u) -f '/usr/bin/dbus-daemon --fork') \
	-ex 'p umask(0077)' --batch

Reco

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Thread

How to change default umask in Stretch? "Garrett R." <grtrbsn83@unseen.is> - 2017-08-06 23:00 +0200
  Re: How to change default umask in Stretch? Dennis Creedan <wingman619@gmail.com> - 2017-08-07 06:20 +0200
  Re: How to change default umask in Stretch? Felix Miata <mrmazda@earthlink.net> - 2017-08-07 07:00 +0200
    Re: How to change default umask in Stretch? "Garrett R." <grtrbsn83@unseen.is> - 2017-08-07 17:30 +0200
      Re: How to change default umask in Stretch? Greg Wooledge <wooledg@eeg.ccf.org> - 2017-08-07 17:40 +0200
        Re: How to change default umask in Stretch? "Garrett R." <grtrbsn83@unseen.is> - 2017-08-07 17:50 +0200
          Re: How to change default umask in Stretch? "Garrett R." <grtrbsn83@unseen.is> - 2017-08-07 19:20 +0200
            Re: How to change default umask in Stretch? Dejan Jocic <jodejka@gmail.com> - 2017-08-07 20:10 +0200
              Re: How to change default umask in Stretch? "Garrett R." <grtrbsn83@unseen.is> - 2017-08-07 20:10 +0200
                Re: How to change default umask in Stretch? Dejan Jocic <jodejka@gmail.com> - 2017-08-07 20:40 +0200
                Re: How to change default umask in Stretch? "Garrett R." <grtrbsn83@unseen.is> - 2017-08-07 21:10 +0200
                Re: How to change default umask in Stretch? "Garrett R." <grtrbsn83@unseen.is> - 2017-08-07 22:10 +0200
                Re: How to change default umask in Stretch? David Wright <deblis@lionunicorn.co.uk> - 2017-08-07 22:50 +0200
                Re: How to change default umask in Stretch? Reco <recoverym4n@gmail.com> - 2017-08-08 12:30 +0200
                Re: How to change default umask in Stretch? Greg Wooledge <wooledg@eeg.ccf.org> - 2017-08-09 14:10 +0200
                Re: How to change default umask in Stretch? Reco <recoverym4n@gmail.com> - 2017-08-10 07:20 +0200
                Re: How to change default umask in Stretch? Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2017-08-12 10:20 +0200
                Re: How to change default umask in Stretch? "Garrett R." <grtrbsn83@unseen.is> - 2017-08-09 14:40 +0200
                Re: How to change default umask in Stretch? Henrique de Moraes Holschuh <hmh@debian.org> - 2017-08-07 23:20 +0200
                Re: How to change default umask in Stretch? Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2017-08-12 11:10 +0200
                Re: How to change default umask in Stretch? Henrique de Moraes Holschuh <hmh@debian.org> - 2017-08-12 14:30 +0200
                Re: How to change default umask in Stretch? Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.COM> - 2017-08-12 22:20 +0200
          Re: How to change default umask in Stretch? Dejan Jocic <jodejka@gmail.com> - 2017-08-07 19:20 +0200
        Re: How to change default umask in Stretch? "Garrett R." <grtrbsn83@unseen.is> - 2017-08-07 18:10 +0200
          Re: How to change default umask in Stretch? Greg Wooledge <wooledg@eeg.ccf.org> - 2017-08-07 18:20 +0200
            Re: How to change default umask in Stretch? "Garrett R." <grtrbsn83@unseen.is> - 2017-08-07 18:40 +0200
              Re: How to change default umask in Stretch? Dejan Jocic <jodejka@gmail.com> - 2017-08-07 19:00 +0200
                Re: How to change default umask in Stretch? Greg Wooledge <wooledg@eeg.ccf.org> - 2017-08-07 19:10 +0200
                Re: How to change default umask in Stretch? Dejan Jocic <jodejka@gmail.com> - 2017-08-07 19:10 +0200
                Re: How to change default umask in Stretch? Dejan Jocic <jodejka@gmail.com> - 2017-08-07 19:10 +0200
                Re: How to change default umask in Stretch? Greg Wooledge <wooledg@eeg.ccf.org> - 2017-08-07 19:10 +0200
      Re: How to change default umask in Stretch? Felix Miata <mrmazda@earthlink.net> - 2017-08-07 19:00 +0200
        Re: How to change default umask in Stretch? Greg Wooledge <wooledg@eeg.ccf.org> - 2017-08-07 19:20 +0200
  Re: How to change default umask in Stretch? Greg Wooledge <wooledg@eeg.ccf.org> - 2017-08-07 14:40 +0200

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