[WIP] DTLS 1.0 preliminary patches

[Jonathan Bastien-Filiatrault]

Nikos Mavrogiannopoulos wrote:
>> I was thinking more of a set_transport in the long run with a DGRAM or
>> STREAM argument and with a transport protocol selector for UDP, SCTP,
>> DCCP and UDP-Lite. I guess gnutls_init_dtls could take those arguments
>> instead.
> 
> You mean for setting different push/pull functions? Those could be in
> predefined macros that are explicitly called.

I was referring to DTLS over DCCP and SCTP having specific quirks (and 
specs, RFC5238 and draft-ietf-tsvwg-dtls-for-sctp-01). DTLS needs a way 
to be told it is using something other than UDP.

> regards,
> Nikos

Cheers,
Jonathan