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Reserved HTTP Frames

Ryan Hamilton <rch@google.com> Wed, 08 August 2018 21:13 UTC

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From: Ryan Hamilton <rch@google.com>
Date: Wed, 08 Aug 2018 14:13:18 -0700
Message-ID: <CAJ_4DfSGS=hAjP3gLPmMc0+jutxcVfS9CXLn96tqJUzfaj-euA@mail.gmail.com>
Subject: Reserved HTTP Frames
To: IETF QUIC WG <quic@ietf.org>, Mike Bishop <mbishop@evequefou.be>
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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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