Flow classifier

modulename: cls_flow.ko


Linux Kernel Configuration
└─>Networking support
└─>Networking options
└─>QoS and/or fair queueing
└─>Flow classifier
In linux kernel since version 2.6.25 (release Date: 2008-04-16)  
If you say Y here, you will be able to classify packets based on
a configurable combination of packet keys. This is mostly useful
in combination with SFQ.

To compile this code as a module, choose M here: the
module will be called cls_flow.

source code: