[PATCH v1 6/7] selftest/landlock: Extend access right tests to directories
From: Mickaël Salaün <mic@digikod.net>
Date: 2022-02-21 15:43:44
Also in:
linux-api, lkml
Subsystem:
kernel selftest framework, landlock security module, the rest · Maintainers:
Shuah Khan, Mickaël Salaün, Linus Torvalds
From: Mickaël Salaün <redacted> Make sure that all filesystem access rights can be tied to directories. Rename layout1/file_access_rights to layout1/file_and_dir_access_rights to reflect this change. Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Mickaël Salaün <redacted> Link: https://lore.kernel.org/r/20220221155311.166278-7-mic@digikod.net (local) --- tools/testing/selftests/landlock/fs_test.c | 29 ++++++++++++++++------ 1 file changed, 21 insertions(+), 8 deletions(-)
diff --git a/tools/testing/selftests/landlock/fs_test.c b/tools/testing/selftests/landlock/fs_test.c
index 5506472a46ce..3736253c9582 100644
--- a/tools/testing/selftests/landlock/fs_test.c
+++ b/tools/testing/selftests/landlock/fs_test.c@@ -409,11 +409,12 @@ TEST_F_FORK(layout1, inval) LANDLOCK_ACCESS_FS_MAKE_BLOCK | \ ACCESS_LAST) -TEST_F_FORK(layout1, file_access_rights) +TEST_F_FORK(layout1, file_and_dir_access_rights) { __u64 access; int err; - struct landlock_path_beneath_attr path_beneath = {}; + struct landlock_path_beneath_attr path_beneath_file = {}, + path_beneath_dir = {}; struct landlock_ruleset_attr ruleset_attr = { .handled_access_fs = ACCESS_ALL, };
@@ -423,20 +424,32 @@ TEST_F_FORK(layout1, file_access_rights) ASSERT_LE(0, ruleset_fd); /* Tests access rights for files. */ - path_beneath.parent_fd = open(file1_s1d2, O_PATH | O_CLOEXEC); - ASSERT_LE(0, path_beneath.parent_fd); + path_beneath_file.parent_fd = open(file1_s1d2, O_PATH | O_CLOEXEC); + ASSERT_LE(0, path_beneath_file.parent_fd); + + /* Tests access rights for directories. */ + path_beneath_dir.parent_fd = open(dir_s1d2, O_PATH | O_DIRECTORY | + O_CLOEXEC); + ASSERT_LE(0, path_beneath_dir.parent_fd); + for (access = 1; access <= ACCESS_LAST; access <<= 1) { - path_beneath.allowed_access = access; + path_beneath_dir.allowed_access = access; + ASSERT_EQ(0, landlock_add_rule(ruleset_fd, LANDLOCK_RULE_PATH_BENEATH, + &path_beneath_dir, 0)); + + path_beneath_file.allowed_access = access; err = landlock_add_rule(ruleset_fd, LANDLOCK_RULE_PATH_BENEATH, - &path_beneath, 0); - if ((access | ACCESS_FILE) == ACCESS_FILE) { + &path_beneath_file, 0); + if (access & ACCESS_FILE) { ASSERT_EQ(0, err); } else { ASSERT_EQ(-1, err); ASSERT_EQ(EINVAL, errno); } } - ASSERT_EQ(0, close(path_beneath.parent_fd)); + ASSERT_EQ(0, close(path_beneath_file.parent_fd)); + ASSERT_EQ(0, close(path_beneath_dir.parent_fd)); + ASSERT_EQ(0, close(ruleset_fd)); } TEST_F_FORK(layout1, unknown_access_rights)
--
2.35.1