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Re: Reserved HTTP Frames

Ryan Hamilton <rch@google.com> Fri, 10 August 2018 00:44 UTC

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From: Ryan Hamilton <rch@google.com>
Date: Thu, 09 Aug 2018 17:44:39 -0700
Message-ID: <CAJ_4DfQ=Q7Hq1_fH5wDRH32otcg=ChHsmqGqNHAiTUOuFaLT7A@mail.gmail.com>
Subject: Re: Reserved HTTP Frames
To: Mike Bishop <mbishop@evequefou.be>
Cc: IETF QUIC WG <quic@ietf.org>
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Great, thanks! Would you be interested in a PR to add the "(0..7)" comment
to 4.2.1?

On Thu, Aug 9, 2018 at 8:51 AM, Mike Bishop <mbishop@evequefou.be> wrote:

> No overflows.  The IANA section is more exhaustive:
>
>
>
> Additionally, each code of the format 0xb + (0x1f * N) for values of N in
> the range (0..7) (that is, 0xb, 0x2a, 0x49, 0x68, 0x87, 0xa6, 0xc5, and
> 0xe4), the following values should be registered:
>
>
>
> *From:* Ryan Hamilton <rch@google.com>
> *Sent:* Wednesday, August 8, 2018 2:13 PM
> *To:* IETF QUIC WG <quic@ietf.org>; Mike Bishop <mbishop@evequefou.be>
> *Subject:* Reserved HTTP Frames
>
>
>
> I've a question about this text from the HTTP mapping doc:
>
>
> 4.2.1 <https://tools.ietf.org/html/draft-ietf-quic-http-13#section-4.2.1>.
> Reserved Frame Types
>
>
>
>
>
>    Frame types of the format "0xb + (0x1f * N)" are reserved to exercise
>
>    the requirement that unknown types be ignored.
>
>
>
> For what values of "N" are we talking about? I assume [0,8)? Because,
> unless I'm doing the math wrong, if N can be [0,256) (and we're doing
> uint8_t math) then that covers all possible values.
>
>
>
> Cheers,
>
>
>
> Ryan
>

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