linux kernel
chenxiaba opened this issue · comments
Socket filtering
CONFIG_FILTER
The Linux Socket Filter is derived from the Berkeley Packet Filter.
If you say Y here, user-space programs can attach a filter to any
socket and thereby tell the kernel that it should allow or disallow
certain types of data to get through the socket. Linux Socket
Filtering works on all socket types except TCP for now. See the text
file linux/Documentation/networking/filter.txt for more information.
If unsure, say N.