Re: [Nbd] Thoughts about the handshake protocol

[Alex B. <al...@al...>]

--On 30 May 2011 18:18:21 +0200 Goswin von Brederlow <gos...@we...> 
wrote:

>> The first option the client sends (not the last) should be the
>> export name, because that's what you need to return things like
>> size.
>
> My plan is to use NBD in a dynamic setup even with hotplug support.
> That means I won't exactly know what disk will be available in the
> server. So I need a "list exports" option for that to work well.
> Obviously I can't send an export name prior to list exports.
>
> I wouldn't say that any option must be first. I would just say that some
> options must be after others.

That's fair enough. I guess in my pipe-dream scheme this would go:
	S->C:	WANT OPTION EXPORT
	C->S:	WANT OPTION EXPORTLIST
	S->C:	OPTION EXPORTLIST [...list...]
	C->S:	OPTION EXPORT [...name...]
	S->C:	[more options]

-- 
Alex Bligh