Linux v5.11.2 - bpfilter
# SPDX-License-Identifier: GPL-2.0-only
bool "BPF based packet filtering framework (BPFILTER)"
depends on NET && BPF && INET
This builds experimental bpfilter framework that is aiming to
provide netfilter compatible functionality via BPF
tristate "bpfilter kernel module with user mode helper"
depends on CC_CAN_LINK
depends on m || CC_CAN_LINK_STATIC
This builds bpfilter kernel module with embedded user mode helper
Note: To compile this as built-in, your toolchain must support
building static binaries, since rootfs isn't mounted at the time
when __init functions are called and do_execv won't be able to find
the elf interpreter.