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| author | KaFai Wan <kafai.wan@linux.dev> | 2026-04-21 23:58:04 +0800 |
|---|---|---|
| committer | Martin KaFai Lau <martin.lau@kernel.org> | 2026-04-22 12:59:49 -0700 |
| commit | 2c7e33f1fc2e75fcfb4aa5d840bcd2e8b53c1847 (patch) | |
| tree | a34a7ef5dbb92baf3780719fb96fc4dca9db02f1 /tools/testing/selftests/bpf/prog_tests | |
| parent | 52b6b5334924d8f083a2abe8edeface9206e13ee (diff) | |
| download | lwn-2c7e33f1fc2e75fcfb4aa5d840bcd2e8b53c1847.tar.gz lwn-2c7e33f1fc2e75fcfb4aa5d840bcd2e8b53c1847.zip | |
selftests/bpf: Verify bpf-tcp-cc rejects TCP_NODELAY
Add a bpf_tcp_ca selftest for the TCP_NODELAY restriction in
bpf-tcp-cc.
Update bpf_cubic to exercise init() and cwnd_event_tx_start(),
and check that both callbacks reject bpf_setsockopt(TCP_NODELAY)
with -EOPNOTSUPP.
Signed-off-by: KaFai Wan <kafai.wan@linux.dev>
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://patch.msgid.link/20260421155804.135786-5-kafai.wan@linux.dev
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c b/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c index f829b6f09bc9..fe30181e6336 100644 --- a/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c +++ b/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c @@ -112,6 +112,10 @@ static void test_cubic(void) ASSERT_EQ(cubic_skel->bss->bpf_cubic_acked_called, 1, "pkts_acked called"); + ASSERT_TRUE(cubic_skel->bss->nodelay_init_reject, "init reject nodelay option"); + ASSERT_TRUE(cubic_skel->bss->nodelay_cwnd_event_tx_start_reject, + "cwnd_event_tx_start reject nodelay option"); + bpf_link__destroy(link); bpf_cubic__destroy(cubic_skel); } |