"bpf" match support

modulename: xt_bpf.ko


Linux Kernel Configuration
└─>Networking support
└─>Networking options
└─>Network packet filtering framework (Netfilter)
└─>Core Netfilter Configuration
└─>"bpf" match support
In linux kernel since version 3.1 (release Date: 2011-10-24)  
BPF matching applies a linux socket filter to each packet and
accepts those for which the filter returns non-zero.

To compile it as a module, choose M here. If unsure, say N.

source code: