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SubjectRe: ANN: libseccomp
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On Monday, April 09, 2012 12:16:30 PM Kees Cook wrote:
> On Mon, Apr 9, 2012 at 11:58 AM, Paul Moore <paul@paul-moore.com> wrote:
> > With the seccomp patches finally stabilizing a bit, it seems like now is a
> > good time to announce libseccomp: a library designed to make it easier to
> > create complex, architecture independent seccomp filters.
> >
> > * http://sourceforge.net/projects/libseccomp/
> > * git clone git://git.code.sf.net/p/libseccomp/libseccomp
>
> This looks really great; nice work!

Thanks.

> I see that the arch check happens during _gen_bpf_build_bpf(), which
> is excellent. Do you have any thoughts about including a call to
> prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0) by default as well?

That is a good question, and I guess it comes down to another question of if
anyone would want to use seccomp without NO_NEW_PRIVS. If the answer is no
then I'm comfortable adding it into the seccomp_load() function; however, if
the answer is yes we might want to do something different.

I haven't given much thought to this yet, so if you or anyone else feels
strongly about the issue - either pro or con - I'd appreciate hearing the
argument.

--
paul moore
www.paul-moore.com



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