[6tisch] MSF adapts to traffic only for secured packets

Tengfei Chang <tengfei.chang@gmail.com> Thu, 05 December 2019 16:18 UTC

Return-Path: <tengfei.chang@gmail.com>
X-Original-To: 6tisch@ietfa.amsl.com
Delivered-To: 6tisch@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 3CDEF12006D for <6tisch@ietfa.amsl.com>; Thu, 5 Dec 2019 08:18:02 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.398
X-Spam-Level:
X-Spam-Status: No, score=-1.398 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_SBL=0.5, URIBL_SBL_A=0.1] autolearn=no autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id mrdubDv92jmv for <6tisch@ietfa.amsl.com>; Thu, 5 Dec 2019 08:18:01 -0800 (PST)
Received: from mail-pf1-x431.google.com (mail-pf1-x431.google.com [IPv6:2607:f8b0:4864:20::431]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 37F3D12007C for <6tisch@ietf.org>; Thu, 5 Dec 2019 08:18:01 -0800 (PST)
Received: by mail-pf1-x431.google.com with SMTP id y14so1819809pfm.13 for <6tisch@ietf.org>; Thu, 05 Dec 2019 08:18:01 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=+nzRIrwjQcOb8470DzpwoXdFn6mlBZynDuDHfN/1CRE=; b=mdhNSjNqR3QfDSOvO1BPXJIIjKMHE9foKUFyIBBHii1JofeqZD46VXzdhSr0MyvRbk ldRPgfMfOfUXYfas3ei7m440wsmAxuRiTqG1kOPRT4S/dP7qHQed2JQ0OS23ldqQYbvp QfUpJBX7NMVXgl0b+zrMouNum3ClNtHbtDjsZWV+gDsxFmi6Q0HfcswayflGPFD42Xbl GxFjLygJDhR7CVMeeQX3dOqUbo+A6H68VcdbEfE18OckhZHf6NeGHil/QaRAAJocdn2E 50EpryFF3ObZwIHaifKsR4hm0kID2A5f5rXMg+ts/J+HOiobV1Gg1tHG7uB+COOvisY+ f3yQ==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=+nzRIrwjQcOb8470DzpwoXdFn6mlBZynDuDHfN/1CRE=; b=QEiuiPpQzvxSL1qCiwsLH1EtBzixuezfv/x4R4TOBWUBi7q2+BL7Wq4LgmKWtJDGFP DXrJgnH8BRy6MvE4BeLsh0uwQEEt0Bv13f5oB6uQGkTk9J6/uJoUTjr7IL29RZ/GyFfl AQM1geLdw4fKL0wuezLKT8o684CVIVV8Z4NC6ypD6AIoWku/eMQCMGyRHk4Z1iVtKZ1E IntQwPqhtScGUy+yG2rnkLQYnubZT5zegNhow+ECyrtrrtxez/zWEK/o2EwJbd3WrEAt zd97Ros2u2TPWplZbvYC84inC07yEHFbP187d7GP0WV/UQ8S2UnFOQ8hUIHK3s3MZA/a IBxw==
X-Gm-Message-State: APjAAAXzG8Ztwv+llNximJ44THAAeZpOtU6neG7dtBr+3UFJsU1ZcHro s5dsZRM9qhn08ZCYLc2fnW3cNyj85gVbZiPOUMaqY0A7
X-Google-Smtp-Source: APXvYqw6VrvpezqS0MlzeFykT63auaurY5zdyvHKFtMQ7cmRhE9VAlFzoDEljD+4ppcCWTYLuiJolI7KbrJn/9P/L28=
X-Received: by 2002:a62:e817:: with SMTP id c23mr9449366pfi.24.1575562680199; Thu, 05 Dec 2019 08:18:00 -0800 (PST)
MIME-Version: 1.0
From: Tengfei Chang <tengfei.chang@gmail.com>
Date: Thu, 05 Dec 2019 17:17:48 +0100
Message-ID: <CAAdgstRGHyRKoMLBhRih8yHwDvf-DTp42ZTEBmBP57FSgt8MyA@mail.gmail.com>
To: 6tisch <6tisch@ietf.org>
Content-Type: multipart/alternative; boundary="000000000000dfec3a0598f74567"
Archived-At: <https://mailarchive.ietf.org/arch/msg/6tisch/ZfObTyGLJMaMVQ3W8IlHnaCsuIQ>
Subject: [6tisch] MSF adapts to traffic only for secured packets
X-BeenThere: 6tisch@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: "Discuss link layer model for Deterministic IPv6 over the TSCH mode of IEEE 802.15.4e, and impacts on RPL and 6LoWPAN such as resource allocation" <6tisch.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/6tisch>, <mailto:6tisch-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/6tisch/>
List-Post: <mailto:6tisch@ietf.org>
List-Help: <mailto:6tisch-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/6tisch>, <mailto:6tisch-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 05 Dec 2019 16:18:02 -0000

Hi All,

For securing the MSF, (comments from minimal security, thanks for the
input!)

In the next version of MSF, we need to add sentence saying MSF only adapts
the traffic which is secured, practically by checking the DSCP value set
with zero or no, which is in IPv6 header.

In other hands, MSF is a link layer protocol, it doesn't suppose to know
the frame is a IPv6 packet or not. no need to say a field value.

I would like to have some suggestions/comments on this issue.
Does anyone know other way to make the SF not adapt to unsecured traffic
without knowing upper layer field?

Thanks!
Tengfei
-- 
——————————————————————————————————————

Dr. Tengfei, Chang
Postdoctoral Research Engineer, Inria

www.tchang.org/
——————————————————————————————————————