A Kernel Module Based Mechanism to Establish a TCP/IP Connection When Destination Service Changing

摘要

In this paper, we would like to change the process of establishing a new connection so that we can transfer a client to another proxy then to get connection from a new destination. Therefore, we need to modify the system call sys_connect, which is in charge of establishing a new connection. Considering that reinstalling operating systems on all clients is impractical, we chose to replace the system call table entry with a customized sys_connect by a Loadable Kernel Module (LKM).