netdev - Re: [PATCH v17 15/15] Documentation: prctl/seccomp

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Message-Id: <20120406142644.223ffff0.akpm@linux-foundation.org>
Date:	Fri, 6 Apr 2012 14:26:44 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Will Drewry <wad@...omium.org>
Cc:	linux-kernel@...r.kernel.org,
	linux-security-module@...r.kernel.org, linux-arch@...r.kernel.org,
	linux-doc@...r.kernel.org, kernel-hardening@...ts.openwall.com,
	netdev@...r.kernel.org, x86@...nel.org, arnd@...db.de,
	davem@...emloft.net, hpa@...or.com, mingo@...hat.com,
	oleg@...hat.com, peterz@...radead.org, rdunlap@...otime.net,
	mcgrathr@...omium.org, tglx@...utronix.de, luto@....edu,
	eparis@...hat.com, serge.hallyn@...onical.com, djm@...drot.org,
	scarybeasts@...il.com, indan@....nu, pmoore@...hat.com,
	corbet@....net, eric.dumazet@...il.com, markus@...omium.org,
	coreyb@...ux.vnet.ibm.com, keescook@...omium.org, jmorris@...ei.org
Subject: Re: [PATCH v17 15/15] Documentation: prctl/seccomp_filter

On Thu, 29 Mar 2012 15:02:00 -0500
Will Drewry <wad@...omium.org> wrote:

> Documents how system call filtering using Berkeley Packet
> Filter programs works and how it may be used.
> Includes an example for x86 and a semi-generic
> example using a macro-based code generator.
> 
>
> ...
>
> +Adding architecture support
> +-----------------------
> +
> +See arch/Kconfig for the authoritative requirements.  In general, if an
> +architecture supports both ptrace_event and seccomp, it will be able to
> +support seccomp filter with minor fixup: SIGSYS support and seccomp return
> +value checking.  Then it must just add CONFIG_HAVE_ARCH_SECCOMP_FILTER
> +to its arch-specific Kconfig.
> diff --git a/samples/Makefile b/samples/Makefile
> index 2f75851..5ef08bb 100644
> --- a/samples/Makefile
> +++ b/samples/Makefile

Oh good, I was going to ask about that.

Can we get this code into tools/testing/selftests?  That way people
will run it more often and it's more likely to be maintained as the
code evolves.

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