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2022-09-02selftests/bpf: Store BPF object files with .bpf.o extensionDaniel Müller1-1/+1
BPF object files are, in a way, the final artifact produced as part of the ahead-of-time compilation process. That makes them somewhat special compared to "regular" object files, which are a intermediate build artifacts that can typically be removed safely. As such, it can make sense to name them differently to make it easier to spot this difference at a glance. Among others, libbpf-bootstrap [0] has established the extension .bpf.o for BPF object files. It seems reasonable to follow this example and establish the same denomination for selftest build artifacts. To that end, this change adjusts the corresponding part of the build system and the test programs loading BPF object files to work with .bpf.o files. [0] https://github.com/libbpf/libbpf-bootstrap Suggested-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Daniel Müller <deso@posteo.net> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20220901222253.1199242-1-deso@posteo.net
2022-06-17selftests/bpf: Add selftests for raw syncookie helpers in TC modeMaxim Mikityanskiy1-24/+72
This commit extends selftests for the new BPF helpers bpf_tcp_raw_{gen,check}_syncookie_ipv{4,6} to also test the TC BPF functionality added in the previous commit. Signed-off-by: Maxim Mikityanskiy <maximmi@nvidia.com> Reviewed-by: Tariq Toukan <tariqt@nvidia.com> Link: https://lore.kernel.org/r/20220615134847.3753567-7-maximmi@nvidia.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-06-17selftests/bpf: Add selftests for raw syncookie helpersMaxim Mikityanskiy1-0/+418
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. A selftest is added to prog_tests that leverages the above programs to test the functionality of the new helpers. Signed-off-by: Maxim Mikityanskiy <maximmi@nvidia.com> Reviewed-by: Tariq Toukan <tariqt@nvidia.com> Link: https://lore.kernel.org/r/20220615134847.3753567-5-maximmi@nvidia.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>