Hi, Michael,

On 4/5/2017 1:10 PM, Michael Welzl wrote:
>> On Apr 5, 2017, at 9:55 PM, Joe Touch <[email protected]> wrote:
>> ...
>> Set_auth and get_auth are either in the STATUS (as per my previous
>> message) or SEND/RECEIVE.
> What’s the problem with defining new primitives for these things? It’s just 
> an abstract API anyway.
You can, but 5925 says "SEND or other" and "RECEIVE or other", i.e., it
does say that the management of these parameters can be via
SEND/RECEIVE, but doesn't have to be.

> I actually removed STATUS in my draft because of the following reasoning 
> (quoting my own draft):
>
> ***
> The 'status' primitive was not included because [RFC0793] describes this 
> primitive as
> "implementation dependent" and states that it "could be excluded without 
> adverse effect”.

That was true back when 793 was created, but hasn't been true
effectively since 1122.

>   Moreover, while a data block containing specific information is described, 
> it is also stated
>    that not all of this information may always be available.
> ***
>
> Because a TAPS system should be able to rely on things that are available 
> pretty much everywhere,
> this draft doesn’t include things that are optional for an underlying 
> transport to implement.
Agreed - I'm saying that there MUST be a command by which some
parameters of a connection can be monitored and altered after the
connection is established but asynchronously from a SEND/RECEIVE call.

You might say that you could accomplish the result with a zero-byte SEND
or nonblocking RECEIVE, but that's ugly from an API viewpoint.

>
>> There may be other signals that need to be specified. E.g., RFC1122 has
>> a few items that need to be indicated, but isn't clear about them being
>> only inside SEND/RECEIVE commands (e.g., see sections 4.1.4 and 4.2.4).
> Exactly my point - disabling Nagle is one of these things. So I gave them 
> names and call them primitives under “CONNECTION.MAINTENANCE”.
> Shouldn’t matter, as long as the functionality is there?

Oh, OK - then you would want to say that the keyID and nextkeyIDs fall
under BOTH SEND/RECEIVE and the CONNECTION.MAINTENANCE section.

Joe

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