[PATCH v2 04/10] selftests/landlock: Add tests for unknown access rights
From: Mickaël Salaün <mic@digikod.net>
Date: 2022-05-06 16:07:23
Also in:
linux-security-module, lkml
Subsystem:
kernel selftest framework, landlock security module, the rest · Maintainers:
Shuah Khan, Mickaël Salaün, Linus Torvalds
Make sure that trying to use unknown access rights returns an error. Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Mickaël Salaün <mic@digikod.net> Link: https://lore.kernel.org/r/20220506160820.524344-5-mic@digikod.net (local) --- Changes since v1: * Format with clang-format and rebase. --- tools/testing/selftests/landlock/fs_test.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)
diff --git a/tools/testing/selftests/landlock/fs_test.c b/tools/testing/selftests/landlock/fs_test.c
index cc7fa7b17578..f293b7e2a1a7 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)
--
2.35.1