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[81.185.173.83]) by smtp.gmail.com with ESMTPSA id l62sm156714wml.13.2019.09.03.09.42.26 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 03 Sep 2019 09:42:27 -0700 (PDT) Subject: Re: [PATCH] Clock-independent TCP ISN generation To: Cyrus Sh , Eric Dumazet , davem@davemloft.net Cc: shiraz.saleem@intel.com, jgg@ziepe.ca, arnd@arndb.de, netdev@vger.kernel.org, sirus@cs.utah.edu References: <70c41960-6d14-3943-31ca-75598ad3d2d7@gmail.com> <2cbd5a8f-f120-a7df-83a3-923f33ca0a10@gmail.com> <492bb69e-0722-f6fc-077a-2348edf081d8@gmail.com> From: Eric Dumazet Message-ID: <3fc44b3a-3ac0-d008-272a-e7acb98ad761@gmail.com> Date: Tue, 3 Sep 2019 18:42:26 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On 9/3/19 6:27 PM, Cyrus Sh wrote: > > > On 9/3/19 10:17 AM, Eric Dumazet wrote: > >> Do you have a real program showing us how this clock skew can be used practically ? > This is a well studied issue. You can take a look at this presentation as an > example: > http://caia.swin.edu.au/talks/CAIA-TALK-080728A.pdf 2008 ? Really ? I do not want an example, I want a proof that current systems are exhibiting all the needed behavior. I do not have time to spend hours reading old stuff based on old architectures. > >> You will have to convince people at IETF and get a proper RFC > No I won't. A lot of these standards have been written at a time that anonymity > networks were not of big importance. Now that they are, we try to lessen the > negative impacts of some RFC deficiencies by improving the implementation. It's > up to you whether to want to keep using a problematic code that may endanger > users or want to do something about it since we won't insist on having a patch > accepted. > Then this is the end. linux wont change something as fundamental without proper feedback from the community.