Re: [MMUSIC] 1-week WGLC on recent changes in draft-ietf-mmusic-dtls-sdp

Christer Holmberg <christer.holmberg@ericsson.com> Thu, 27 April 2017 11:38 UTC

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From: Christer Holmberg <christer.holmberg@ericsson.com>
To: Martin Thomson <martin.thomson@gmail.com>
CC: Roman Shpount <roman@telurix.com>, Flemming Andreasen <fandreas@cisco.com>, "draft-ietf-mmusic-dtls-sdp@ietf.org" <draft-ietf-mmusic-dtls-sdp@ietf.org>, mmusic <mmusic@ietf.org>
Thread-Topic: [MMUSIC] 1-week WGLC on recent changes in draft-ietf-mmusic-dtls-sdp
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Date: Thu, 27 Apr 2017 11:38:30 +0000
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Subject: Re: [MMUSIC] 1-week WGLC on recent changes in draft-ietf-mmusic-dtls-sdp
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Hi,

>>We COULD say that the offerer MUST NOT process the ClientHello before it
>> has received the answer, but I am not sure we say more than thatŠ
>
>I wouldn't do that; the real gate here is that they not call the
>handshake done and proceed to exchange data.  Frankly, you could even
>complete the handshake and buffer incoming data without any real
>exposure.
>
>Sending is not a good idea and playing out what you receive is equally
>unwise.  Those are what you need to safeguard.  (Fluffy might
>disagree; #include other threads regarding W3C liaison).

Fair enough. So, do we want to say that the offerer may complete the
handshake, and buffer received data, before it has received the answer,
but the offerer shall not process received data, or send data, before it
has received the answer?

Regards,

Christer