From: Simon Horman <ho...@verge.net.au> Date: Thu, 19 Apr 2012 13:53:35 +0900
> This hook is based on a hook of the same name provided by UDP. It provides > a way for to receive packets that have a TCP header and treat them in some > alternate way. > > It is intended to be used by an implementation of the STT tunneling > protocol within Open vSwtich's datapath. A prototype of such an > implementation has been made. > > The STT draft is available at > http://tools.ietf.org/html/draft-davie-stt-01 I think that unlike UDP, you need to let the stack handle the TCP packet before taking it into your subsystem. The reason is that otherwise you'll need to handle packet ordering, sequence number gaps, and proper TCP ACK'ing and timeout all inside of your module and that's simply unacceptable. Do what the SunRPC layer does, register a TCP socket for the port, and use the ->data_ready() socket callback to consume the packets into your subsystem. That allows TCP to do all of it's work, and you just get a sane in-order validated datastream on your end. _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
