"owner" match support

modulename: xt_owner.ko

configname: CONFIG_NETFILTER_XT_MATCH_OWNER

Linux Kernel Configuration
└─>Networking support
└─>Networking options
└─>Network packet filtering framework (Netfilter)
└─>Core Netfilter Configuration
└─>"owner" match support
In linux kernel since version 2.6.25 (release Date: 2008-04-16)  
Socket owner matching allows you to match locally-generated packets
based on who created the socket: the user or group. It is also
possible to check whether a socket actually exists.

source code: