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Re: [libvirt] [PATCH] storage: use 0711 as the default perms for dirs



On Thu, May 11, 2017 at 06:36:22PM -0400, John Ferlan wrote:
> 
> 
> On 05/11/2017 04:31 AM, Christian Ehrhardt wrote:
> > From: Serge Hallyn <serge hallyn ubuntu com>
> > 
> > There should be no need to make dir based pools world readable.
> > So use 0711, not 0755, as the default perms for storage dirs.
> > 
> > Signed-off-by: Christian Ehrhardt <christian ehrhardt canonical com>
> > ---
> >  docs/formatstorage.html.in | 2 +-
> >  src/storage/storage_util.h | 2 +-
> >  2 files changed, 2 insertions(+), 2 deletions(-)
> > 
> 
> Kinda surprised this didn't generate some immediate discussion...  I
> would also think that if you had a desire to change defaults you'd also
> have a libvirt.spec.in adjustment...

Actually no it doesn't - the spec file is already marking
/var/lib/libvirt/images as 0711.

> Still 0755 or umask(022) seem to be fairly prevalent setting and having
> the <mode> for the XML to be able to override a default certainly gives
> credence to arguments in either direction whether or not to change the
> defaults.
> 
> It's been a long while since I considered system/directory/file security
> things, but I have this faint recollection of some strange issue when
> not having world or group "executable" as a default.

The fact that RPM spec ships with 0711 show that it works ok. So I
think this change is reasonable.


Regards,
Daniel
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