Determine which user started tcp connection

[Artem Kuchin]

Hello!

I have a jail with shared hosting. Many sites are hosted. Each on its 
own user.
I want to monitor their external connections. I allow external 
connections but want to
see what's going  on.
IPFW allowes easily to see all outgoing connection setups from jail, but 
i cannot
see which user started it.
I googled and i see that requests to add UID to IPFW log were first in 
2008 but
i still do not see it in the version 10.

So, is there a way to log UID and connection params  (dst ip and port) ?

Artem