About new dispatcher

[lidsa@xxxxxxxxxxxxx]

If I want to analyse the content of requests before I redirect it to real
server,and perhaps
I choose a real server by search from database.Do it in kernel is very
difficult even impossible!But if I do it under user layer and create a
socket to connect to the real server,
I have to read from one socket and write to another,it's to expensive.I
want the sockets can
be joined in the kernel,so I need not copy them.Would you give me some
advices and referrence?
Than you very much!

     lidsa