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| author | Jörn-Thorben Hinz <jthinz@mailbox.tu-berlin.de> | 2022-06-22 22:12:27 +0300 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2022-06-23 19:49:58 +0300 |
| commit | f14a3f644a1c5a2e2dbe6073f51793119a12e6ce (patch) | |
| tree | 2f2467f86f8349cf645ce153714272a6770c3f7b /tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c | |
| parent | 0735627d78caa56f219dc14608ce0bdbd045e07e (diff) | |
| download | linux-f14a3f644a1c5a2e2dbe6073f51793119a12e6ce.tar.xz | |
selftests/bpf: Test a BPF CC implementing the unsupported get_info()
Test whether a TCP CC implemented in BPF providing get_info() is
rejected correctly. get_info() is unsupported in a BPF CC. The check for
required functions in a BPF CC has moved, this test ensures unsupported
functions are still rejected correctly.
Signed-off-by: Jörn-Thorben Hinz <jthinz@mailbox.tu-berlin.de>
Reviewed-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/r/20220622191227.898118-6-jthinz@mailbox.tu-berlin.de
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c')
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c | 20 |
1 files changed, 20 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 194d07310531..2959a52ced06 100644 --- a/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c +++ b/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c @@ -11,6 +11,7 @@ #include "bpf_dctcp_release.skel.h" #include "tcp_ca_write_sk_pacing.skel.h" #include "tcp_ca_incompl_cong_ops.skel.h" +#include "tcp_ca_unsupp_cong_op.skel.h" #ifndef ENOTSUPP #define ENOTSUPP 524 @@ -359,6 +360,23 @@ static void test_incompl_cong_ops(void) tcp_ca_incompl_cong_ops__destroy(skel); } +static void test_unsupp_cong_op(void) +{ + libbpf_print_fn_t old_print_fn; + struct tcp_ca_unsupp_cong_op *skel; + + err_str = "attach to unsupported member get_info"; + found = false; + old_print_fn = libbpf_set_print(libbpf_debug_print); + + skel = tcp_ca_unsupp_cong_op__open_and_load(); + ASSERT_NULL(skel, "open_and_load"); + ASSERT_EQ(found, true, "expected_err_msg"); + + tcp_ca_unsupp_cong_op__destroy(skel); + libbpf_set_print(old_print_fn); +} + void test_bpf_tcp_ca(void) { if (test__start_subtest("dctcp")) @@ -375,4 +393,6 @@ void test_bpf_tcp_ca(void) test_write_sk_pacing(); if (test__start_subtest("incompl_cong_ops")) test_incompl_cong_ops(); + if (test__start_subtest("unsupp_cong_op")) + test_unsupp_cong_op(); } |