netdev - Re: [PATCH v4 0/7] kernel tinification: optionally compile out splice family of syscalls (splice, vmsplice, tee and sendfile)

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <20141126121903.5231c854@lxorguk.ukuu.org.uk>
Date:	Wed, 26 Nov 2014 12:19:03 +0000
From:	One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk>
To:	David Miller <davem@...emloft.net>
Cc:	josh@...htriplett.org, rdunlap@...radead.org, pieter@...sman.nl,
	alexander.h.duyck@...el.com, viro@...iv.linux.org.uk,
	ast@...mgrid.com, akpm@...ux-foundation.org, beber@...eeweb.net,
	catalina.mocanu@...il.com, dborkman@...hat.com,
	edumazet@...gle.com, ebiederm@...ssion.com, fabf@...net.be,
	fuse-devel@...ts.sourceforge.net, geert@...ux-m68k.org,
	hughd@...gle.com, iulia.manda21@...il.com, JBeulich@...e.com,
	bfields@...ldses.org, jlayton@...chiereds.net,
	linux-api@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-nfs@...r.kernel.org,
	mcgrof@...e.com, mattst88@...il.com, mgorman@...e.de,
	mst@...hat.com, miklos@...redi.hu, netdev@...r.kernel.org,
	oleg@...hat.com, Paul.Durrant@...rix.com,
	paulmck@...ux.vnet.ibm.com, pefoley2@...oley.com, tgraf@...g.ch,
	therbert@...gle.com, trond.myklebust@...marydata.com,
	willemb@...gle.com, xiaoguangrong@...ux.vnet.ibm.com,
	zhenglong.cai@...c.com.cn
Subject: Re: [PATCH v4 0/7] kernel tinification: optionally compile out
 splice family of syscalls (splice, vmsplice, tee and sendfile)

On Tue, 25 Nov 2014 14:04:41 -0500 (EST)
David Miller <davem@...emloft.net> wrote:

> From: josh@...htriplett.org
> Date: Tue, 25 Nov 2014 10:53:10 -0800
> 
> > It's not a "slippery slope"; it's been our standard practice for ages.
> 
> We've never put an entire class of generic system calls behind
> a config option.

Try running an original MCC Linux binary and C lib on a current kernel

We've put *entire binary formats* behind a config option. We've put older
syscalls behind it, we've put sysfs behind it, sysctl behind it, the
older microcode interfaces behind it, ISA bus as a concept behind
options. VDSO, IPC, even 32bit support ... the list goes on and on.

I'd say those were far more generic on the whole than splice/sendfile.

Alan
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html