IETF Logo Mail Archive

Re: [rtcweb] Is rtcweb the right place for draft-ietf-rtcweb-mdns-ice-candidates?

Roman Shpount <roman@telurix.com> Thu, 04 July 2019 00:40 UTC

Return-Path: <roman@telurix.com>
X-Original-To: rtcweb@ietfa.amsl.com
Delivered-To: rtcweb@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 8A46812067A for <rtcweb@ietfa.amsl.com>; Wed, 3 Jul 2019 17:40:16 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.887
X-Spam-Level:
X-Spam-Status: No, score=-1.887 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, T_SPF_PERMERROR=0.01, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=telurix-com.20150623.gappssmtp.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 VKeYeoVa08wm for <rtcweb@ietfa.amsl.com>; Wed, 3 Jul 2019 17:40:14 -0700 (PDT)
Received: from mail-pf1-x42d.google.com (mail-pf1-x42d.google.com [IPv6:2607:f8b0:4864:20::42d]) (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 161A9120629 for <rtcweb@ietf.org>; Wed, 3 Jul 2019 17:40:14 -0700 (PDT)
Received: by mail-pf1-x42d.google.com with SMTP id u14so880753pfn.2 for <rtcweb@ietf.org>; Wed, 03 Jul 2019 17:40:14 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=telurix-com.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=Z5BKqdR0B68cDQrtYGc/sv00hpjs7HEsSHb5/QMzNTQ=; b=g773ugBuODJy1NC2TRGvA5+FdSmYB9Fm3540u+TuU1t4KyCJEzSuLfv2HohXnVHSjG Znd2p5l+ZK7RTzZt7Xf2mnX8e7Yu4e9icfT5+6Oo8ZiNXH2uTNYYc05ZuvV5GKkG0ixy zdH+Xijm9vsnNVqIehT749nEuO1iX72ldO9g/lxoGYgj0Cqlef2bYLVxkiTVQ2erMWco UvCZ2Zzo/HBpT4rMs3iBXWr+2MaZ7/7vX/ftH2XdCiAfPnS94IDDaiM5LXNYNOEUZPfW zd+SdTlXsrAmkaHOWAq18fdvjHg4Xy7rBMkIWRXQ5FOtw0RuNOh9P7Hy3gyIFxU8O42v YVJQ==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=Z5BKqdR0B68cDQrtYGc/sv00hpjs7HEsSHb5/QMzNTQ=; b=BlIw/HQonlSdDlB9OY2YqZHcx0FP/2pLxS3a5mYYrOyb1QwVr/RRTaHx1kZZaGM1WF fEX/ke3DrBAQgNJpZKd2gH0jbDjumOQujIccK239aEXiSTFbYHMtjLRrDuVE2WtOnvd2 DeCEfp1jxBdtBpyTUc3cbgt8Nhukr5WM3OWFB493wUReBtSUUVBRFQL/OXpqZwl5fAOn E4xL/ta/Ke1BGb2L6uFVudflE3pYqQ/2EflZw4OIir+DHMkfGRR+jAbQJ9sl/7zQDaDN I/fk+tbVwn+5F+IVySq87YLgWAQR+igIYLFDhA5y1RutRKN6e2RlfXDFeHnppAa0R9iH ji0w==
X-Gm-Message-State: APjAAAUosN5K3rN+oyJ7ytUJNb7x49LzF/ucSfpuucgjFXTpNbyAzfIJ y803+ZlEjq+73lDwggCiJO23DLhvZG4=
X-Google-Smtp-Source: APXvYqxejRBQacdxlgYA98rEC2zJ2n3fGWSanqLhCCKVDpyofgcJn+xZU/iao2xFVLfMWPRhJjASnQ==
X-Received: by 2002:a17:90a:1c1:: with SMTP id 1mr16116029pjd.72.1562200813168; Wed, 03 Jul 2019 17:40:13 -0700 (PDT)
Received: from mail-pf1-f175.google.com (mail-pf1-f175.google.com. [209.85.210.175]) by smtp.gmail.com with ESMTPSA id m101sm2907133pjb.7.2019.07.03.17.40.11 for <rtcweb@ietf.org> (version=TLS1_3 cipher=AEAD-AES128-GCM-SHA256 bits=128/128); Wed, 03 Jul 2019 17:40:12 -0700 (PDT)
Received: by mail-pf1-f175.google.com with SMTP id x15so2084333pfq.0 for <rtcweb@ietf.org>; Wed, 03 Jul 2019 17:40:11 -0700 (PDT)
X-Received: by 2002:a63:7c0e:: with SMTP id x14mr39543007pgc.65.1562200811289; Wed, 03 Jul 2019 17:40:11 -0700 (PDT)
MIME-Version: 1.0
References: <b03853a4-1006-4da0-d52f-9e7462a2cd0c@alvestrand.no> <D80CECAF-B520-40A2-BFBB-E39B73BA943D@sn3rd.com> <CAD5OKxsd-SE8VpwFgto3DLbabs+9O+cHMucy1+Cep7tCJQR6+w@mail.gmail.com> <CAOJ7v-2XrND6YWqo2tEiDbs7TZpEoiP+MGBAk2aF7hfoMiGk0Q@mail.gmail.com>
In-Reply-To: <CAOJ7v-2XrND6YWqo2tEiDbs7TZpEoiP+MGBAk2aF7hfoMiGk0Q@mail.gmail.com>
From: Roman Shpount <roman@telurix.com>
Date: Wed, 03 Jul 2019 20:40:02 -0400
X-Gmail-Original-Message-ID: <CAD5OKxtSzOfnN8WrV-duwwfmwa+VJX_3HACiXU43Xeym25GQaQ@mail.gmail.com>
Message-ID: <CAD5OKxtSzOfnN8WrV-duwwfmwa+VJX_3HACiXU43Xeym25GQaQ@mail.gmail.com>
To: Justin Uberti <juberti@google.com>
Cc: "rtcweb@ietf.org" <rtcweb@ietf.org>
Content-Type: multipart/alternative; boundary="0000000000006cc218058cd03863"
Archived-At: <https://mailarchive.ietf.org/arch/msg/rtcweb/2J22hsbiXZdtRCsoU8M6jg5DGjE>
Subject: Re: [rtcweb] Is rtcweb the right place for draft-ietf-rtcweb-mdns-ice-candidates?
X-BeenThere: rtcweb@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Real-Time Communication in WEB-browsers working group list <rtcweb.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/rtcweb>, <mailto:rtcweb-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/rtcweb/>
List-Post: <mailto:rtcweb@ietf.org>
List-Help: <mailto:rtcweb-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/rtcweb>, <mailto:rtcweb-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 04 Jul 2019 00:40:22 -0000

Part of the problem is that mmusic have decided to punt on the FQDN
support. In the current mmusic-ice-sip-sdp the final language that was
included:

<connection-address>:  is taken from RFC 4566 [RFC4566].  It is the IP
address of the candidate, allowing for IPv4 addresses, IPv6 addresses, and
fully qualified domain names (FQDNs).  When parsing this field, an agent
can differentiate an IPv4 address and an IPv6 address by presence of a
colon in its value - the presence of a colon indicates IPv6.  *An agent
generating local candidates MUST NOT use FQDN addresses.  An agent
processing remote candidates MUST ignore candidate lines that include
candidates with FQDN *or IP address versions that are not supported or
recognized.  *The procedures for generation and handling of FQDN
candidates, as well as, how agents indicate support for such procedures,
need to be specified in an extension specification.*

So, at this point we have two options:
1. draft-ietf-rtcweb-mdns-ice-candidates can update ice-sip-sdp and define
how FQDN candidates generated by mdns are handled
2. write a new draft in mmusic which defines FQDN handling

In any case some sort of mmusic discussion is needed to reconcile this.

Best Regards,
_____________
Roman Shpount


On Wed, Jul 3, 2019 at 8:28 PM Justin Uberti <juberti@google.com> wrote:

> The problem this draft is trying to solve is fairly RTCWEB-specific. If
> there are individual issues to resolve, we can send them out to mmusic for
> discussion, but AFAIK no changes to existing ICE specs are needed.
>
> On Wed, Jul 3, 2019 at 4:26 PM Roman Shpount <roman@telurix.com> wrote:
>
>> Hi All,
>>
>> Is rtcweb the right place for draft-ietf-rtcweb-mdns-ice-candidates? This
>> entire draft seems to be ICE/SDP specific and not limited to rtcweb. Also,
>> there are significant interop implications for this draft between browser
>> and non-browser end points which probably warrant larger discussion outside
>> of rtcweb group. I would think mmusic would be a much better place for this
>> draft. I know there is an incentive to complete this draft quickly but this
>> has a potential to break a lot of things (it already did break interop with
>> almost every existing ICE implementation).
>>
>> Regards,
>> _____________
>> Roman Shpount
>> _______________________________________________
>> rtcweb mailing list
>> rtcweb@ietf.org
>> https://www.ietf.org/mailman/listinfo/rtcweb
>>
>

v2.23.0 | Report a Bug | By Email