Re: [regext] IANA Considerations in draft-ietf-regext-rdap-reverse-search

Mario Loffredo <mario.loffredo@iit.cnr.it> Fri, 31 July 2020 17:15 UTC

Return-Path: <mario.loffredo@iit.cnr.it>
X-Original-To: regext@ietfa.amsl.com
Delivered-To: regext@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 990B63A0B31 for <regext@ietfa.amsl.com>; Fri, 31 Jul 2020 10:15:43 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.9
X-Spam-Level:
X-Spam-Status: No, score=-1.9 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, NICE_REPLY_A=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
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 XDV7IeT7gTdw for <regext@ietfa.amsl.com>; Fri, 31 Jul 2020 10:15:41 -0700 (PDT)
Received: from smtp.iit.cnr.it (mx4.iit.cnr.it [146.48.98.151]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 171BA3A0AE7 for <regext@ietf.org>; Fri, 31 Jul 2020 10:15:40 -0700 (PDT)
Received: from localhost (localhost [127.0.0.1]) by smtp.iit.cnr.it (Postfix) with ESMTP id 9034CB8040D; Fri, 31 Jul 2020 19:15:38 +0200 (CEST)
X-Virus-Scanned: Debian amavisd-new at mx4.iit.cnr.it
Received: from smtp.iit.cnr.it ([127.0.0.1]) by localhost (mx4.iit.cnr.it [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 94anaRHWMaGc; Fri, 31 Jul 2020 19:15:33 +0200 (CEST)
Received: from [192.12.193.108] (pc-loffredo.nic.it [192.12.193.108]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits)) (No client certificate requested) by smtp.iit.cnr.it (Postfix) with ESMTPSA id 01E53B80198; Fri, 31 Jul 2020 19:15:32 +0200 (CEST)
To: Jasdip Singh <jasdips@arin.net>, Patrick Mevzek <pm@dotandco.com>, "regext@ietf.org" <regext@ietf.org>
References: <1cb2fde4261748afa8163333d090b84a@verisign.com> <df404a43-8284-5466-7d83-88e27d5691ef@iit.cnr.it> <0f361bcb-cd2d-4336-8f71-f06f72430e48@www.fastmail.com> <234b29a5-ab00-6f1e-64f7-1da48673dbe2@iit.cnr.it> <65ee0574-0a07-4bf4-a73c-2d5fe8ec57f4@www.fastmail.com> <abb138473ef245ce9eb3e263f2e85a57@verisign.com> <b52e75cd-0cdd-4ff8-8335-2e7423cfe94d@www.fastmail.com> <A04C5274-4701-4578-9F4F-9290A5781F9C@arin.net>
From: Mario Loffredo <mario.loffredo@iit.cnr.it>
Message-ID: <d2c4accd-0182-57b7-6fbc-e63fd1aae2b9@iit.cnr.it>
Date: Fri, 31 Jul 2020 19:12:36 +0200
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0
MIME-Version: 1.0
In-Reply-To: <A04C5274-4701-4578-9F4F-9290A5781F9C@arin.net>
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding: 8bit
Content-Language: it
Archived-At: <https://mailarchive.ietf.org/arch/msg/regext/ve9OrIJuKVPulHjJmtWNMjixNDY>
Subject: Re: [regext] IANA Considerations in draft-ietf-regext-rdap-reverse-search
X-BeenThere: regext@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Registration Protocols Extensions <regext.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/regext>, <mailto:regext-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/regext/>
List-Post: <mailto:regext@ietf.org>
List-Help: <mailto:regext-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/regext>, <mailto:regext-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 31 Jul 2020 17:15:44 -0000

Hi all,

if I understood well the rdapConformance content in the help response 
should be different from that included in the other responses. Right?

I misunderstood Scott's proposal as a mean by which a server could 
inform a client about the supported features any time regardless the 
response content.

In that sense, I proposed the server could distinguish the 
rdapConformance content according the user profile.


I have no objection to this solution but I think that the two cases 
above should be outlined in RFC7483bis.

Best,

Mario

Il 31/07/2020 18:50, Jasdip Singh ha scritto:
> Agree with Patrick's points about rdapConformance in the help response informing about all capabilities and rdapConformance being more specific for a particular query response.
>
> Jasdip
>
> On 7/31/20, 12:29 PM, "regext on behalf of Patrick Mevzek" <regext-bounces@ietf.org on behalf of pm@dotandco.com> wrote:
>
>      On Fri, Jul 31, 2020, at 11:21, Hollenbeck, Scott wrote:
>      > Note "supported extensions". This is why I'm saying that we need to
>      > register all extensions with IANA
>      
>      I agree.
>      
>      > and include them in the
>      > rdapConformance data structure even if they don't describe a response
>      > extension.
>      
>      I agree, everything should be listed in the reply to an help query.
>      
>      I am just saying that for any other reply that is a specific one on a specific resource
>      then the rdapConformance should just list the "extensions" needed to understand this
>      specific response, and not list absolutely all extensions the server knows about
>      (and that are irrelevant for this specific response).
>      
>      The list of what is written in the response should certainly not be just server policy,
>      especially if there is no automated way to learn about this policy. Otherwise if you include
>      options like that (the list presented might be the list of all server extensions OR only the subset needed for this specific response) AND there is no way for the client to know which
>      case he is in, it immediately creates interoperability problems. I prefer no such options
>      and the protocol clearly defining the content. Or if such options are really needed
>      (if help response is always all extensions, and any other response is just the specific extensions needed, then nothing more is needed), there should be  a signal to know which
>      case we are in.
>      
>      > The help response should include supported
>      > extensions that are available to that client.
>      
>      Yes, the help response allows to "discover" all possible extensions from a specific client.
>      
>      --
>        Patrick Mevzek
>        pm@dotandco.com
>      
>      _______________________________________________
>      regext mailing list
>      regext@ietf.org
>      https://www.ietf.org/mailman/listinfo/regext
>      
>
> _______________________________________________
> regext mailing list
> regext@ietf.org
> https://www.ietf.org/mailman/listinfo/regext

-- 
Dr. Mario Loffredo
Systems and Technological Development Unit
Institute of Informatics and Telematics (IIT)
National Research Council (CNR)
via G. Moruzzi 1, I-56124 PISA, Italy
Phone: +39.0503153497
Mobile: +39.3462122240
Web: http://www.iit.cnr.it/mario.loffredo