netdev - Re: [PATCH 5/5] net: Use netlink_ns_capable to verify the permisions of netlink messages

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Date:	Thu, 8 May 2014 15:07:12 -0700
From:	Stephen Hemminger <stephen@...workplumber.org>
To:	Andy Lutomirski <luto@...capital.net>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	"security@...nel.org" <security@...nel.org>,
	Vivek Goyal <vgoyal@...hat.com>,
	"Serge E. Hallyn" <serge@...lyn.com>,
	Simo Sorce <ssorce@...hat.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Network Development <netdev@...r.kernel.org>,
	"Jorge Boncompte [DTI2]" <jorge@...2.net>,
	David Miller <davem@...emloft.net>
Subject: Re: [PATCH 5/5] net: Use netlink_ns_capable to verify the
 permisions of netlink messages

On Thu, 8 May 2014 14:49:11 -0700
Andy Lutomirski <luto@...capital.net> wrote:

> TBH, I'm starting to think that the real solution is to add a new syscall:
> 
> sys_net_ctl(int nl_proto, const void *intput, size_t inlen, void
> *output, size_t outlen)

No.
Changing all the applications based on netlink is a really bad idea.
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