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selftests/landlock: Add tests for unknown access rights

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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>
This commit is contained in:
Mickaël Salaün 2022-05-06 18:08:14 +02:00
parent 291865bd7e
commit c56b3bf566
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1 changed files with 16 additions and 0 deletions
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16
tools/testing/selftests/landlock/fs_test.c
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@ -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)