Re: [PATCH v10 7/9] proc: move hidepid values to uapi as they are user interface to mount

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On Sat, Mar 28, 2020 at 02:53:49PM -0700, Kees Cook wrote:
> > > > +/* definitions for hide_pid field */
> > > > +enum {
> > > > +	HIDEPID_OFF            = 0,
> > > > +	HIDEPID_NO_ACCESS      = 1,
> > > > +	HIDEPID_INVISIBLE      = 2,
> > > > +	HIDEPID_NOT_PTRACEABLE = 4,
> > > > +};
> > > Should the numeric values still be UAPI if there is string parsing now?
> > 
> > I think yes, because these are still valid hidepid= values.
> 
> But if we don't expose the values, we can do whatever we like with
> future numbers (e.g. the "is this a value or a bit field?" question).

Alexey Dobriyan suggested to put these parameters into the UAPI and it
makes sense because these are user parameters.

-- 
Rgrds, legion




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