diff options
| -rw-r--r-- | tools/testing/selftests/seccomp/seccomp_bpf.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/tools/testing/selftests/seccomp/seccomp_bpf.c b/tools/testing/selftests/seccomp/seccomp_bpf.c index 462a30e81ca9..13b88d578db6 100644 --- a/tools/testing/selftests/seccomp/seccomp_bpf.c +++ b/tools/testing/selftests/seccomp/seccomp_bpf.c @@ -1942,6 +1942,26 @@ FIXTURE_TEARDOWN(TRACE_syscall) teardown_trace_fixture(_metadata, self->tracer); } +TEST(negative_ENOSYS) +{ + /* + * There should be no difference between an "internal" skip + * and userspace asking for syscall "-1". + */ + errno = 0; + EXPECT_EQ(-1, syscall(-1)); + EXPECT_EQ(errno, ENOSYS); + /* And no difference for "still not valid but not -1". */ + errno = 0; + EXPECT_EQ(-1, syscall(-101)); + EXPECT_EQ(errno, ENOSYS); +} + +TEST_F(TRACE_syscall, negative_ENOSYS) +{ + negative_ENOSYS(_metadata); +} + TEST_F(TRACE_syscall, syscall_allowed) { /* getppid works as expected (no changes). */ |