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selftests/bpf: dummy_st_ops should reject 0 for non-nullable params 

[ Upstream commit 6a2d30d3c5bf9f088dcfd5f3746b04d84f2fab83 ]

Check if BPF_PROG_TEST_RUN for bpf_dummy_struct_ops programs
rejects execution if NULL is passed for non-nullable parameter.

Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20240424012821.595216-6-eddyz87@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Eduard Zingerman 2024-04-23 18:28:21 -07:00 committed by Greg Kroah-Hartman
parent a1a629fc37
commit e7d193073a
1 changed files with 27 additions and 0 deletions
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27
tools/testing/selftests/bpf/prog_tests/dummy_st_ops.c
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@ -147,6 +147,31 @@ static void test_dummy_sleepable(void)
dummy_st_ops_success__destroy(skel);
}
/* dummy_st_ops.test_sleepable() parameter is not marked as nullable,
* thus bpf_prog_test_run_opts() below should be rejected as it tries
* to pass NULL for this parameter.
*/
static void test_dummy_sleepable_reject_null(void)
{
__u64 args[1] = {0};
LIBBPF_OPTS(bpf_test_run_opts, attr,
.ctx_in = args,
.ctx_size_in = sizeof(args),
);
struct dummy_st_ops_success *skel;
int fd, err;
skel = dummy_st_ops_success__open_and_load();
if (!ASSERT_OK_PTR(skel, "dummy_st_ops_load"))
return;
fd = bpf_program__fd(skel->progs.test_sleepable);
err = bpf_prog_test_run_opts(fd, &attr);
ASSERT_EQ(err, -EINVAL, "test_run");
dummy_st_ops_success__destroy(skel);
}
void test_dummy_st_ops(void)
{
if (test__start_subtest("dummy_st_ops_attach"))
@ -159,6 +184,8 @@ void test_dummy_st_ops(void)
test_dummy_multiple_args();
if (test__start_subtest("dummy_sleepable"))
test_dummy_sleepable();
if (test__start_subtest("dummy_sleepable_reject_null"))
test_dummy_sleepable_reject_null();
RUN_TESTS(dummy_st_ops_fail);
}