IETF Logo Mail Archive

Re: Back to work

Martin Thomson <mt@lowentropy.net> Fri, 30 October 2020 00:09 UTC

Return-Path: <mt@lowentropy.net>
X-Original-To: quic@ietfa.amsl.com
Delivered-To: quic@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A96823A0A99 for <quic@ietfa.amsl.com>; Thu, 29 Oct 2020 17:09:28 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.098
X-Spam-Level:
X-Spam-Status: No, score=-2.098 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=lowentropy.net header.b=Im55CPee; dkim=pass (2048-bit key) header.d=messagingengine.com header.b=aUVS7iq7
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 e-acS6iMChIB for <quic@ietfa.amsl.com>; Thu, 29 Oct 2020 17:09:27 -0700 (PDT)
Received: from wout1-smtp.messagingengine.com (wout1-smtp.messagingengine.com [64.147.123.24]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 79D983A0A5F for <quic@ietf.org>; Thu, 29 Oct 2020 17:09:27 -0700 (PDT)
Received: from compute1.internal (compute1.nyi.internal [10.202.2.41]) by mailout.west.internal (Postfix) with ESMTP id EB13AB12; Thu, 29 Oct 2020 20:09:25 -0400 (EDT)
Received: from imap10 ([10.202.2.60]) by compute1.internal (MEProxy); Thu, 29 Oct 2020 20:09:26 -0400
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=lowentropy.net; h=mime-version:message-id:in-reply-to:references:date:from:to :cc:subject:content-type; s=fm3; bh=gTEdRSzavzaOd86wSSO4ddAYTPVS O25Aq2+pIr2u3Ew=; b=Im55CPeeMmYrT2V2X0o3yC2XDPy8IKURBeW3ujZCtKfJ tMjEv31H/gvhwsyCl0is59ysI5dnw6h11JQyPd+5hkXD2qw8fzrmmmT5anRYzKqI mEipCI9mtmTV1U+DrESDciKiYzuiXLu+UkdCmuToPKR7BY+u+zk+vZjD47LqqwyJ YTgiEbfSN6rMenikBTcxLC0QIAUOP0cI5S9d/grHVjzST8nfM9UZ3AB8RKa5euHO 11/5FSecpNZKW89eCjAoh/9fC6W3toQzil5uMEa/ETP5VwkHXGQJq32JVP0lNuCM WL4W40gyBFTD9XRDw5Htl3kTsqyvZi6dJUHHhuUhyA==
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to:x-me-proxy :x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s=fm1; bh=gTEdRS zavzaOd86wSSO4ddAYTPVSO25Aq2+pIr2u3Ew=; b=aUVS7iq76hXROmu58w75f9 C+6s9FNqj9oRI5gB8/AILW0iq1lERJJDVV5Ys2u3Bqm5CIbeYSfrGe6h0oRwUNMq 5h1MpwPFxSzBdbt3W/bYV9riJn0EbMupHN+xPmksNbidJjMmqV3acvzSEHKUFS9i WwQ90shi20pzpFZd9b/aUl5XKuqnGkonxgtKhPNAJetVPVxNgugL4KHHDGmF47zQ /pGpKCuHzPBxsFA54fTDfFYL0XLmke7midunyqiZFY+IzfQ4sxpBaNKT3eRN9ZxU jTLCCyVER0cmGWFEUH84P8UZqS1LIBqbrEGEP9pNPmalyQFwgqhDkApND+l6wFzA ==
X-ME-Sender: <xms:tVmbXxuQ-e1KpM9-1LeB0h-QvJlkuiZLIt-FGuDO36kg6No8bHFsZA> <xme:tVmbX6e5lBVcYcEvr4cqs3VDABUho_aILASXaNC2M2BAEWthb_KbMJ7iY_1rnD_pq 5XRIbBBMgrTn7O2JRM>
X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedujedrleeggddukecutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenuc fjughrpefofgggkfgjfhffhffvufgtsehttdertderredtnecuhfhrohhmpedfofgrrhht ihhnucfvhhhomhhsohhnfdcuoehmtheslhhofigvnhhtrhhophihrdhnvghtqeenucggtf frrghtthgvrhhnpeekteeuieektdekleefkeevhfekffevvdevgfekgfeluefgvdejjeeg ffeigedtjeenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhgrihhlfhhroh hmpehmtheslhhofigvnhhtrhhophihrdhnvght
X-ME-Proxy: <xmx:tVmbX0xuc74tesvJCJ3XK2h3Twp-04ISDHiR-eD2cCCTFWrMcdNKKw> <xmx:tVmbX4OqMaci4B7tkeq3wp8hW2rW0tJRqxeVdUEA4wl8TQLGokm5Gw> <xmx:tVmbXx8QX9aWL2zrDYMTAUdQGT2o8txbAZut170OUdksY2d4kyXMfg> <xmx:tVmbX-GIq4tX5xrEq2nuakR29QzarK5r4QMURcLG4ZoWPOCKsQORrA>
Received: by mailuser.nyi.internal (Postfix, from userid 501) id 0BA972033D; Thu, 29 Oct 2020 20:09:25 -0400 (EDT)
X-Mailer: MessagingEngine.com Webmail Interface
User-Agent: Cyrus-JMAP/3.3.0-530-g8da6958-fm-20201021.003-g69105b13-v35
Mime-Version: 1.0
Message-Id: <9c116544-c120-422b-8968-79effb3020ca@www.fastmail.com>
In-Reply-To: <fed2a70b-954e-f224-fd0f-e80d36f12e87@huitema.net>
References: <0f150dec-e408-48bf-8e54-05e3e96e7a85@www.fastmail.com> <CALZ3u+a1fBq1MB52H-h-JYY=OOkOo9=jEu7smNVeyy_9U3abEw@mail.gmail.com> <CAKcm_gNoB=nP050VRfw5MXAAw-HhpnKHp6pAx9onaA4a5CH5-Q@mail.gmail.com> <b80cf41524865c171712bfcfca7ef92e2a472044.camel@ericsson.com> <efe63bdf-7af2-49c0-932d-3a36de61bdd6@www.fastmail.com> <41A07550-1BFA-43E6-83A0-93FA96DF1E9B@apple.com> <CAN1APddS_qtMoUiUL9uwtAB3rXuAQ0NmiipXGDkS4hcA5od6Ag@mail.gmail.com> <CAKcm_gOcuuF_REWszJyYC6eO6swavMD3D9VnzgJTHEwEAXOsnw@mail.gmail.com> <CAM4esxT2kD6U-Hb5cOSfykBPvTmboEozqqiYiFF63ywxstm-LQ@mail.gmail.com> <CAKcm_gPzEgEssO3LMyW=t9tvbsRrLQBJ7M=2mxySs3H-YUXF5A@mail.gmail.com> <CACpbDceKFAVZ=Vrvj8ZoOj95TNfkCqNrpLh8FOBMBUBU=Qx_eQ@mail.gmail.com> <cc9aca43-7556-7fed-8ef8-1b5343316a0d@huitema.net> <59211AC5-0D72-4295-9E67-DA0BF5B92965@apple.com> <7fca948f-6c71-45c8-8c76-8cfabf11898b@www.fastmail.com> <5CD85C94-CFB2-47FF-9178-0DBE354EFCBF@apple.com> <f950a0cf-1be1-491b-8bc4-f5816cdb13e6@www.fastmail.com> <fed2a70b-954e-f224-fd0f-e80d36f12e87@huitema.net>
Date: Fri, 30 Oct 2020 11:09:05 +1100
From: Martin Thomson <mt@lowentropy.net>
To: Christian Huitema <huitema@huitema.net>, Eric Kinnear <ekinnear@apple.com>
Cc: quic@ietf.org
Subject: Re: Back to work
Content-Type: text/plain
Archived-At: <https://mailarchive.ietf.org/arch/msg/quic/q5ZIygP1SMYBOhc92-JQZp7Me_s>
X-BeenThere: quic@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Main mailing list of the IETF QUIC working group <quic.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/quic>, <mailto:quic-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/quic/>
List-Post: <mailto:quic@ietf.org>
List-Help: <mailto:quic-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/quic>, <mailto:quic-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 30 Oct 2020 00:09:29 -0000

On Fri, Oct 30, 2020, at 10:42, Christian Huitema wrote:
> That means doing thing differently for a regular migration and for a NAT
> rebinding. A regular migration happens starts the client sends a full
> size packet, with a not yet seen CID, and containing a path challenge.
> Responding to that with a full size response makes sense. But if the
> server receives a short packet, with an already used CID, and without a
> path challenge, that's probably a NAT rebinding. Responding with full
> size challenge packets is counter-productive.

Ahh, that seems sensible.  Conveniently, the current PR results in what you describe, so I have less work to do :)

v2.23.0 | Report a Bug | By Email