Hi all,

I am trying to understand the flow of packets up the TCP/IP stack
and
for now would like to get a basic understanding. From what I
understand,
the listen() syscall is going to put the caller to sleep and when it
returns, the inpcb structure for that socket will have its inp_faddr
and
inp_fport fields filled in so that when accept() is called later,
these
fields will be copied into the mbuf that is sent back to the caller.
What I am trying to find is where in the code is the inp_faddr and
inp_fport fields are filled with the remote address and remote port.
I'm
guessing these fields are going to be filled in from the IP header
once
the three way handshake is over. But there is just so much code in
tcp_input() that I am having trouble locating what I need. Any help
would be greatly appreciated.

Thanks,
Bijoy Thomas.