Date: Sun, 27 Dec 2009 12:18:49 +0000
From: Al Viro <viro@ZenIV.linux.org.uk>
To: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: pavel@ucw.cz, michael@laptop.org, linux-kernel@vger.kernel.org,
       netdev@vger.kernel.org, linux-security-module@vger.kernel.org,
       andi@firstfloor.org, david@lang.hm, socketcan@hartkopp.net,
       alan@lxorguk.ukuu.org.uk, herbert@gondor.apana.org.au,
       Valdis.Kletnieks@vt.edu, bdonlan@gmail.com, zbr@ioremap.net,
       cscott@cscott.net, jmorris@namei.org, ebiederm@xmission.com,
       bernie@codewiz.org, mrs@mythic-beasts.com, randy.dunlap@oracle.com,
       xiyou.wangcong@gmail.com, sam@synack.fr, casey@schaufler-ca.com,
       serue@us.ibm.com
Subject: Re: RFC: disablenetwork facility. (v4)
Message-ID: <20091227121849.GY18217@ZenIV.linux.org.uk>
References: <20091227010441.GA12077@heat> <200912271736.GDB17180.OFJHOOQStMFLVF@I-love.SAKURA.ne.jp> <20091227083857.GC11737@elf.ucw.cz> <200912272049.FIB35755.OMFFOOJQtVLFSH@I-love.SAKURA.ne.jp>
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On Sun, Dec 27, 2009 at 08:49:17PM +0900, Tetsuo Handa wrote:

> We can determine what syscalls we need from application's code and libc's code,
> can't we?

_Which_ libc?  And no, I'm not talking about other implementations; even
glibc is more than enough.  It changes and it *does* change the set of
syscalls used to implement given function.

I'm not disagreeing about what's seccomp worth, BTW.
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