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| author |   Martin KaFai Lau <martin.lau@kernel.org> | 2022-09-29 00:04:07 -0700 |
|---|---|---|
| committer |   Alexei Starovoitov <ast@kernel.org> | 2022-09-29 09:25:47 -0700 |
| commit | 3411c5b6f8d6e08d98e606dcf74fc42e2f9d731f (patch) | |
| tree | 95473ec30ee99a86de01e2abeb0c6636e4eb9cc3 /tools/testing/selftests/bpf/prog_tests | |
| parent | bpf: tcp: Stop bpf_setsockopt(TCP_CONGESTION) in init ops to recur itself (diff) | |
| download | linux-dev-3411c5b6f8d6e08d98e606dcf74fc42e2f9d731f.tar.xz linux-dev-3411c5b6f8d6e08d98e606dcf74fc42e2f9d731f.zip | |
selftests/bpf: Check -EBUSY for the recurred bpf_setsockopt(TCP_CONGESTION)
This patch changes the bpf_dctcp test to ensure the recurred
bpf_setsockopt(TCP_CONGESTION) returns -EBUSY.
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://lore.kernel.org/r/20220929070407.965581-6-martin.lau@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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 2959a52ced06..e980188d4124 100644 --- a/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c +++ b/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c @@ -290,6 +290,10 @@ static void test_dctcp_fallback(void) goto done; ASSERT_STREQ(dctcp_skel->bss->cc_res, "cubic", "cc_res"); ASSERT_EQ(dctcp_skel->bss->tcp_cdg_res, -ENOTSUPP, "tcp_cdg_res"); + /* All setsockopt(TCP_CONGESTION) in the recurred + * bpf_dctcp->init() should fail with -EBUSY. + */ + ASSERT_EQ(dctcp_skel->bss->ebusy_cnt, 3, "ebusy_cnt"); err = getsockopt(srv_fd, SOL_TCP, TCP_CONGESTION, srv_cc, &cc_len); if (!ASSERT_OK(err, "getsockopt(srv_fd, TCP_CONGESTION)")) |