netdev - Re: [Drbd-dev] [PATCH 2/2 v2] netlink: kill eff_cap from struct netlink_skb

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Message-Id: <20110303.173831.226757550.davem@davemloft.net>
Date:	Thu, 03 Mar 2011 17:38:31 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	zbr@...emap.net
Cc:	chrisw@...s-sol.org, linux-fbdev@...r.kernel.org,
	netdev@...r.kernel.org, linux-security-module@...r.kernel.org,
	dm-devel@...hat.com, kaber@...sh.net, drbd-dev@...ts.linbit.com
Subject: Re: [Drbd-dev] [PATCH 2/2 v2] netlink: kill eff_cap from struct
 netlink_skb_parms

From: Evgeniy Polyakov <zbr@...emap.net>
Date: Fri, 4 Mar 2011 04:29:56 +0300

> Hi.
> 
> On Thu, Mar 03, 2011 at 11:37:46PM +0100, Lars Ellenberg (lars.ellenberg@...bit.com) wrote:
>> If so, then this change introduces the possibility for normal users to
>> send privileged commands to connector based subsystems, even if they
>> may not be able to bind() to suitable sockets to receive any replies.
>> 
>> Am I missing something?
> 
> Yup, connector is very async at that place, but I wonder why the hell I
> ever made that decision. I believe we can replace it with pure sync call
> of the registered connector callback, since netlink is synchronous and
> no one has any problem with it.

Yes, please it would really help us with what we're trying to do here.
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