Re: [PATCH bpf-next v3 5/5] bpf: Add selftests for raw syncookie helpers

On Thu, Feb 24, 2022 at 05:11:45PM +0200, Maxim Mikityanskiy wrote:

This commit adds selftests for the new BPF helpers: bpf_tcp_raw_{gen,check}_syncookie_ipv{4,6}.

xdp_synproxy_kern.c is a BPF program that generates SYN cookies on allowed TCP ports and sends SYNACKs to clients, accelerating synproxy iptables module.

xdp_synproxy.c is a userspace control application that allows to configure the following options in runtime: list of allowed ports, MSS, window scale, TTL.

test_xdp_synproxy.sh is a script that demonstrates the setup of synproxy with XDP acceleration and serves as a selftest for the new feature.

Please convert the test into test_progs runner. We don't accept standalone tests anymore.