linux-kernel - Re: [PATCH v2 1/2] syslog: distinguish between /proc/kmsg and syscalls

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Date:	Thu, 4 Feb 2010 15:31:06 -0600
From:	"Serge E. Hallyn" <serue@...ibm.com>
To:	James Morris <jmorris@...ei.org>
Cc:	Kees Cook <kees.cook@...onical.com>,
	Alex Riesen <raa.lkml@...il.com>,
	Casey Schaufler <casey@...aufler-ca.com>,
	linux-security-module@...r.kernel.org,
	Eric Paris <eparis@...hat.com>,
	David Howells <dhowells@...hat.com>,
	Alexey Dobriyan <adobriyan@...il.com>,
	Ingo Molnar <mingo@...e.hu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Simon Kagstrom <simon.kagstrom@...insight.net>,
	David Woodhouse <David.Woodhouse@...el.com>,
	Robin Getz <rgetz@...log.com>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	Paul Moore <paul.moore@...com>,
	Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>,
	Stephen Smalley <sds@...ho.nsa.gov>,
	Etienne Basset <etienne.basset@...ericable.fr>,
	"David P. Quigley" <dpquigl@...ho.nsa.gov>,
	LKLM <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 1/2] syslog: distinguish between /proc/kmsg and
 syscalls

Quoting James Morris (jmorris@...ei.org):
> On Thu, 4 Feb 2010, Kees Cook wrote:
> 
> > Hi Alex,
> > 
> > On Thu, Feb 04, 2010 at 08:58:43AM +0100, Alex Riesen wrote:
> > > > +       /* /proc/kmsg can open be opened by CAP_SYS_ADMIN */
> > > > +       if (type != 1 && from_file)
> > > > +               return 0;
> > > 
> > > "can open be opened"?
> > 
> > Erk, sorry.  s/open //
> > 
> > James, do you want a patch for that?
> 
> I guess... and 'opened with' might be better.

I'd still as mentioned yesterday prefer "requires CAP_SYS_ADMIN to open"
Otherwise, every time I see the comment I expect stricter requirements,
not laxer ones, on the other actions.  However, I think with the second
patch switching 1 for a meaningful name, the comment isn't even necessary
or noticable any more.

-serge
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