tree ea5d70a8c8822f44c1d2bea45adc64769a6167d7
parent 9babe825da769cfbd7080f95e6bddbe98ce6b95d
author Stanislav Fomichev <sdf@google.com> 1564437071 -0700
committer Alexei Starovoitov <ast@kernel.org> 1564692952 -0700

selftests/bpf: extend sockopt_sk selftest with TCP_CONGESTION use case

Ignore SOL_TCP:TCP_CONGESTION in getsockopt and always override
SOL_TCP:TCP_CONGESTION with "cubic" in setsockopt hook.

Call setsockopt(SOL_TCP, TCP_CONGESTION) with short optval ("nv")
to make sure BPF program has enough buffer space to replace it
with "cubic".

Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>