Re: [quicwg/base-drafts] Use the FRAME_ENCODING_ERROR for errors in frame encoding (#3042)

Martin Thomson <notifications@github.com> Wed, 18 September 2019 01:32 UTC

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Subject: Re: [quicwg/base-drafts] Use the FRAME_ENCODING_ERROR for errors in frame encoding (#3042)
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martinthomson commented on this pull request.



> @@ -5060,8 +5059,8 @@ the offset of the next byte that would be sent.
 The first byte in the stream has an offset of 0.  The largest offset delivered
 on a stream - the sum of the offset and data length - cannot exceed 2^62-1, as
 it is not possible to provide flow control credit for that data.  Receipt of a
-frame that exceeds this limit will be treated as a connection error of type
-FLOW_CONTROL_ERROR.
+frame that exceeds this limit MUST be treated as a connection error of type
+FRAME_ENCODING_ERROR or FLOW_CONTROL_ERROR.

I think that permitting either is in line with principles.  I mean, sure, this can be flow control, but if someone has code that validates frames and that code all directs into a FRAME_ENCODING_ERROR code path, that's fine.  Checking that `x+y>=2^62` might be redundant, but I don't want to say that that code can't run that check.

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