From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1D1C0C433E7 for ; Thu, 15 Oct 2020 21:24:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C0C5E2076E for ; Thu, 15 Oct 2020 21:24:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730442AbgJOVYE convert rfc822-to-8bit (ORCPT ); Thu, 15 Oct 2020 17:24:04 -0400 Received: from eu-smtp-delivery-151.mimecast.com ([185.58.86.151]:33476 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730383AbgJOVYD (ORCPT ); Thu, 15 Oct 2020 17:24:03 -0400 Received: from AcuMS.aculab.com (156.67.243.126 [156.67.243.126]) (Using TLS) by relay.mimecast.com with ESMTP id uk-mta-195-UU4LVtVANySkwc75KN0fuA-1; Thu, 15 Oct 2020 22:23:59 +0100 X-MC-Unique: UU4LVtVANySkwc75KN0fuA-1 Received: from AcuMS.Aculab.com (fd9f:af1c:a25b:0:43c:695e:880f:8750) by AcuMS.aculab.com (fd9f:af1c:a25b:0:43c:695e:880f:8750) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Thu, 15 Oct 2020 22:23:58 +0100 Received: from AcuMS.Aculab.com ([fe80::43c:695e:880f:8750]) by AcuMS.aculab.com ([fe80::43c:695e:880f:8750%12]) with mapi id 15.00.1347.000; Thu, 15 Oct 2020 22:23:58 +0100 From: David Laight To: 'Marcelo Ricardo Leitner' , Xin Long CC: network dev , "linux-sctp@vger.kernel.org" , Neil Horman , "Michael Tuexen" , "davem@davemloft.net" , "gnault@redhat.com" , "pabeni@redhat.com" , "willemdebruijn.kernel@gmail.com" Subject: RE: [PATCHv3 net-next 16/16] sctp: enable udp tunneling socks Thread-Topic: [PATCHv3 net-next 16/16] sctp: enable udp tunneling socks Thread-Index: AQHWoxqgOwMtvPpvUkG+LluVFgP1pqmZK0hg Date: Thu, 15 Oct 2020 21:23:58 +0000 Message-ID: References: <20201015174252.GB11030@localhost.localdomain> In-Reply-To: <20201015174252.GB11030@localhost.localdomain> Accept-Language: en-GB, en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.202.205.107] MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=C51A453 smtp.mailfrom=david.laight@aculab.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Marcelo Ricardo Leitner > Sent: 15 October 2020 18:43 > > Actually.. > > On Tue, Oct 13, 2020 at 03:27:41PM +0800, Xin Long wrote: > ... > > Also add sysctl udp_port to allow changing the listening > > sock's port by users. I've not read through this change... But surely the UDP port (or ports) that you need to use will depend on the remote system's configuration. So they need to be a property of the socket, not a system-wide value. I can easily imagine my M3UA code connecting to different network providers which have decided to use different UDP port numbers. David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales)