git: network - Move socket from netmsg ext to netmsg header, add port to socket

Matthew Dillon dillon at
Tue Dec 8 12:12:03 PST 2009

:+ *
:+ * XXX
:+ */
:+sosetport(struct socket *so, lwkt_port_t port)
:+       so->so_port = port;
:Err. What's the XXX for?

     It's a reminder to me to deal with the issue of when the port
     has to change... for example, if a TCP connection is disconnected
     and connect() is then run on it again to a different target.

     Or when connect() is used with UDP, or sendto().

     There are issues with those sorts of things where we do not have
     a proper abstraction for the case where the port is moved.  I did
     some very basic work in the netmsg function dispatch code to
     check the so->so_port and re-forward the message if it had been
     sent to the wrong port (on the assumption that the message was
     racing a port change), but it isn't formalized enough or well-tested
     enough to be considered stable.

     Hence the XXX.  Ok, I was a little sparse in my code comment :-)

					Matthew Dillon 
					<dillon at>

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