[PATCH AUTOSEL 5.0 149/262] selftests: skip seccomp get_metadata test if not real root

Sasha Levin
2019-03-27T18:06:45Z

From: Tycho Andersen <tycho@tycho.ws>

[ Upstream commit 3aa415dd2128e478ea3225b59308766de0e94d6b ]

The get_metadata() test requires real root, so let's skip it if we're not
real root.

Note that I used XFAIL here because that's what the test does later if
CONFIG_CHEKCKPOINT_RESTORE happens to not be enabled. After looking at the
code, there doesn't seem to be a nice way to skip tests defined as TEST(),
since there's no return code (I tried exit(KSFT_SKIP), but that didn't work
either...). So let's do it this way to be consistent, and easier to fix
when someone comes along and fixes it.

Signed-off-by: Tycho Andersen <tycho@tycho.ws>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Shuah Khan <shuah@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
tools/testing/selftests/seccomp/seccomp_bpf.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/tools/testing/selftests/seccomp/seccomp_bpf.c b/tools/testing/selftests/seccomp/seccomp_bpf.c
index 7e632b465ab4..6d7a81306f8a 100644
--- a/tools/testing/selftests/seccomp/seccomp_bpf.c
+++ b/tools/testing/selftests/seccomp/seccomp_bpf.c
@@ -2971,6 +2971,12 @@ TEST(get_metadata)
struct seccomp_metadata md;
long ret;

+ /* Only real root can get metadata. */
+ if (geteuid()) {
+ XFAIL(return, "get_metadata requires real root");
+ return;
+ }
+
ASSERT_EQ(0, pipe(pipefd));

pid = fork();
--
2.19.1