selftests/bpf: Test an incomplete BPF CC

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Test whether a TCP CC implemented in BPF providing neither cong_avoid()
nor cong_control() is correctly rejected. This check solely depends on
tcp_register_congestion_control() now, which is invoked during
bpf_map__attach_struct_ops().

Signed-off-by: Jörn-Thorben Hinz <jthinz@mailbox.tu-berlin.de>
Link: https://lore.kernel.org/r/20220622191227.898118-5-jthinz@mailbox.tu-berlin.de
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Jörn-Thorben Hinz 2022-06-22 21:12:26 +02:00 • committed by Alexei Starovoitov

parent 6e945d57cc

commit 0735627d78

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22

tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c

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35

tools/testing/selftests/bpf/progs/tcp_ca_incompl_cong_ops.c

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