From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Hemminger Subject: Re: [PATCH] Check if user has CAP_NET_ADMIN to change congestion control algorithm Date: Fri, 27 Oct 2006 08:48:01 -0700 Message-ID: <45422A31.7070806@osdl.org> References: <4540F076.70801@psc.edu> <20061026224407.GA2018@c3po.0xdef.net> <20061026235256.GB2018@c3po.0xdef.net> <20061026.170221.99202188.davem@davemloft.net> <20061027104311.GB3967@c3po.0xdef.net> <20061027074102.2a6fef4b@localhost.localdomain> <20061027152157.GB4632@c3po.0xdef.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from smtp.osdl.org ([65.172.181.4]:62651 "EHLO smtp.osdl.org") by vger.kernel.org with ESMTP id S1750856AbWJ0Psc (ORCPT ); Fri, 27 Oct 2006 11:48:32 -0400 To: Hagen Paul Pfeifer , Stephen Hemminger , David Miller , jheffner@psc.edu, netdev@vger.kernel.org In-Reply-To: <20061027152157.GB4632@c3po.0xdef.net> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Hagen Paul Pfeifer wrote: > * Stephen Hemminger | 2006-10-27 07:41:02 [-0700]: > > >> Please no, it makes the socket option useless. >> > > Technical no, in the sense of usability for everybody yes. You are right > Stephen, as a programmer I understand you complete! > > But on the other side: We know for sure that this IS a problem if we allow > everybody to "prefer his socket". > > In my opinion we should prefer fairness before usability! As John Heffner > introduce, we can introduce a ranking system for congestion control algorithms - > but this solution seems a little bit oversized and maybe can't be complete > guaranteed (complex interaction between the protocols in different > environment and so on, you know). > > HGN > > If there is a dangerous choice, then it should be removed. Otherwise I can't see the problem. It is a bigger risk to have to escalate the privileges of an application just to allow it to use something.