[gnutls-help] false start

Jeremy Harris jgh at wizmail.org
Fri Feb 7 16:51:55 CET 2020

On 07/02/2020 14:52, Nikos Mavrogiannopoulos wrote:
> On Fri, Feb 7, 2020 at 2:45 PM Jeremy Harris <jgh at wizmail.org> wrote:
>> gnutls_session_get_desc() seems to not be usefully
>> callable immediately after gnutls_handshake() returns,
>> with False Start in play, which is reasonable.
>> However it also isn't returning useful info when called
>> during a handshake-done callback set up with
>>   gnutls_handshake_set_hook_function(state->session,
>> I suspect the cause is the obvious flag
>> "initial_negotiation_completed", set in handshake_client()
>> only after the state-machine has terminated.

>> Could the info be made accessible earlier?  How early?
> Out of curiosity what is the reason you would like to know whether
> parameters in relation to false start are acceptable early?

These are just the general-info items for the connection,
for observability and reporting - the ciphersuite etc.
I'm not needing to modify anything.

Absent False Start, the obvious time to gather them is once
the connection is made - ie. right after gnutls_handshake()
returns - but obviously that no longer works.

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