Re: I-D Action: draft-carpenter-6man-rfc6874bis-00.txt
Brian Carpenter <brian.e.carpenter@gmail.com> Mon, 05 July 2021 09:06 UTC
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From: Brian Carpenter <brian.e.carpenter@gmail.com>
Date: Mon, 05 Jul 2021 21:06:22 +1200
Message-ID: <CANMZLAbmdWHDRBPpHgy_e4_0-WUVW2gjnbXWwu2pF_xi-S0vWQ@mail.gmail.com>
Subject: Re: I-D Action: draft-carpenter-6man-rfc6874bis-00.txt
To: Ted Hardie <ted.ietf@gmail.com>
Cc: 6man <ipv6@ietf.org>, Bob Hinden <bob.hinden@gmail.com>
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Ted, I agree about the complexity. otoh I believe that at least one browser used to do this. How about saying that such a mechanism is not forbidden? Regards, Brian Carpenter (via tiny screen & keyboard) On Mon, 5 Jul 2021, 20:06 Ted Hardie, <ted.ietf@gmail.com> wrote: > Hi Brian, Bob, > > Your draft says: > > In the spirit of "be liberal with what you > accept", we also suggest that URI parsers accept bare "%" signs when > possible (i.e., a "%" not followed by two valid and meaningful > hexadecimal characters). This would make it possible for a user to > copy and paste a string such as "fe80::a%en1" from the output of a > "ping" command and have it work. On the other hand, "%ee1" would > need to be manually rewritten to "fe80::a%25ee1" to avoid any risk of > misinterpretation. > > I would prefer the document without this suggestion, as I think the > resulting logic for a uri parser is a good bit harder than the " %s are > handled differently within IPv6 literals" approach. This requires the > parser to treat %s differently within IPv6 literals except when the result > would be a "valid and meaningful" pair of hexadecimal characters. If I > follow your logic correctly, that would mean not simply checking to be sure > that these are hex but also checking to be sure that the resulting > characters are within the syntax for the ZoneID production. > > I think the proposal is much cleaner without this, and I encourage you to > reconsider including it. > > regards, > > Ted Hardie > > > On Mon, Jul 5, 2021 at 3:41 AM Brian E Carpenter < > brian.e.carpenter@gmail.com> wrote: > >> Hi, >> >> In case people aren't aware, no web browser that we know of supports >> RFC6874, i.e. the extension to URI/URL syntax for a link-local >> zone index in literal IPv6 addresses. This is annoying in several >> use cases. >> >> This new draft tackles what seems to be the main objection from >> the browser community, namely that RFC6874 requires browsers to >> remove the zone index before sending the URL out in a standard >> HTTP message. That's a coding annoyance and it also breaks HTTP/1.1 >> rules for the "Host" header according to RFC7230. >> >> There's background to this issue at: >> https://bugzilla.mozilla.org/show_bug.cgi?id=700999 (still live but >> officially closed WONTFIX) and >> https://github.com/whatwg/url/issues/392 >> >> The new draft proposes to update the RFC accordingly. The changes >> are relatively small but significant. There's a diff between the >> RFC and this draft at: >> >> https://www.cs.auckland.ac.nz/~brian/Diff-rfc6874-draft-carpenter-6man-rfc6874bis-00.html >> >> Comments welcome. If we want to go ahead with this fix, we will need to >> reach out to the URI specialists and the browser community, to be sure >> it isn't a waste of time. >> >> Regards >> Brian & Bob >> >> >> -------- Forwarded Message -------- >> Subject: I-D Action: draft-carpenter-6man-rfc6874bis-00.txt >> Date: Sun, 04 Jul 2021 19:10:13 -0700 >> From: internet-drafts@ietf.org >> Reply-To: internet-drafts@ietf.org >> To: i-d-announce@ietf.org >> >> >> A New Internet-Draft is available from the on-line Internet-Drafts >> directories. >> >> >> Title : Representing IPv6 Zone Identifiers in Address >> Literals and Uniform Resource Identifiers >> Authors : Brian Carpenter >> Robert M. Hinden >> Filename : draft-carpenter-6man-rfc6874bis-00.txt >> Pages : 10 >> Date : 2021-07-04 >> >> Abstract: >> This document describes how the zone identifier of an IPv6 scoped >> address, defined as <zone_id> in the IPv6 Scoped Address Architecture >> (RFC 4007), can be represented in a literal IPv6 address and in a >> Uniform Resource Identifier that includes such a literal address. It >> updates the URI Generic Syntax specification (RFC 3986) accordingly, >> and obsoletes RFC 6874. >> >> >> The IETF datatracker status page for this draft is: >> https://datatracker.ietf.org/doc/draft-carpenter-6man-rfc6874bis/ >> >> There is also an HTML version available at: >> https://www.ietf.org/archive/id/draft-carpenter-6man-rfc6874bis-00.html >> >> >> Internet-Drafts are also available by anonymous FTP at: >> ftp://ftp.ietf.org/internet-drafts/ >> >> >> _______________________________________________ >> I-D-Announce mailing list >> I-D-Announce@ietf.org >> https://www.ietf.org/mailman/listinfo/i-d-announce >> Internet-Draft directories: http://www.ietf.org/shadow.html >> or ftp://ftp.ietf.org/ietf/1shadow-sites.txt >> >> -------------------------------------------------------------------- >> IETF IPv6 working group mailing list >> ipv6@ietf.org >> Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 >> -------------------------------------------------------------------- >> >
- Fwd: I-D Action: draft-carpenter-6man-rfc6874bis-… Brian E Carpenter
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Ted Hardie
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Brian Carpenter
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Nico Schottelius
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Ted Hardie
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Nick Hilliard
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Eric Vyncke (evyncke)
- Re: Fwd: I-D Action: draft-carpenter-6man-rfc6874… Michael Richardson
- Re: Fwd: I-D Action: draft-carpenter-6man-rfc6874… Brian E Carpenter
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Brian E Carpenter
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Pascal Thubert (pthubert)
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Brian E Carpenter
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Nico Schottelius
- Re: Fwd: I-D Action: draft-carpenter-6man-rfc6874… Ted Hardie
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Michael Richardson
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Andrew Cady
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Ted Hardie
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Andrew Cady
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Andrew Cady
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Andrew Cady
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Michael Richardson
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Jared Mauch
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Andrew Cady
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Nico Schottelius
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Nico Schottelius
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Michael Richardson
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Michael Richardson
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Carsten Bormann
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Andrew Cady
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Jared Mauch
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Brian E Carpenter
- Re: Fwd: I-D Action: draft-carpenter-6man-rfc6874… Brian E Carpenter
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Brian E Carpenter
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Brian E Carpenter
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Ted Hardie
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Philip Homburg
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Michael Richardson
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Brian E Carpenter
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Brian E Carpenter
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Philip Homburg
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Michael Richardson
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Brian E Carpenter
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Brian E Carpenter
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Michael Richardson
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Brian E Carpenter
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Andrew Cady
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Michael Richardson
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Brian E Carpenter
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Brian E Carpenter
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Nick Hilliard
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Nick Hilliard
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Michael Richardson
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Brian E Carpenter
- Re: I-D Action: draft-carpenter-6man-rfc6874bis-0… Brian E Carpenter