From: Mickaël Salaün <mic@digikod.net>
Date: Fri, 6 May 2022 16:08:14 +0000 (+0200)
Subject: selftests/landlock: Add tests for unknown access rights
X-Git-Tag: v6.6.17~7495^2~19
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c56b3bf566da5a0dd3b58ad97a614b0928b06ebf;p=platform%2Fkernel%2Flinux-rpi.git

selftests/landlock: Add tests for unknown access rights

Make sure that trying to use unknown access rights returns an error.

Cc: Shuah Khan <shuah@kernel.org>
Link: https://lore.kernel.org/r/20220506160820.524344-5-mic@digikod.net
Cc: stable@vger.kernel.org
Signed-off-by: Mickaël Salaün <mic@digikod.net>
---

diff --git a/tools/testing/selftests/landlock/fs_test.c b/tools/testing/selftests/landlock/fs_test.c
index cc7fa7b..f293b7e 100644
--- a/tools/testing/selftests/landlock/fs_test.c
+++ b/tools/testing/selftests/landlock/fs_test.c
@@ -448,6 +448,22 @@ TEST_F_FORK(layout1, file_access_rights)
 	ASSERT_EQ(0, close(path_beneath.parent_fd));
 }
 
+TEST_F_FORK(layout1, unknown_access_rights)
+{
+	__u64 access_mask;
+
+	for (access_mask = 1ULL << 63; access_mask != ACCESS_LAST;
+	     access_mask >>= 1) {
+		struct landlock_ruleset_attr ruleset_attr = {
+			.handled_access_fs = access_mask,
+		};
+
+		ASSERT_EQ(-1, landlock_create_ruleset(&ruleset_attr,
+						      sizeof(ruleset_attr), 0));
+		ASSERT_EQ(EINVAL, errno);
+	}
+}
+
 static void add_path_beneath(struct __test_metadata *const _metadata,
 			     const int ruleset_fd, const __u64 allowed_access,
 			     const char *const path)