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authorMickaël Salaün <mic@digikod.net>2024-01-18 12:36:32 +0100
committerMickaël Salaün <mic@digikod.net>2024-02-27 11:21:45 +0100
commitb4007fd27206c478a4b76e299bddf4a71787f520 (patch)
treeb4128761ac496506270830a23a2955ca0ff895e7 /security/landlock/Kconfig
parenta3f16298b38bcb17a0a01cc2f84dba46b59a860a (diff)
landlock: Add support for KUnit tests
Add the SECURITY_LANDLOCK_KUNIT_TEST option to enable KUnit tests for Landlock. The minimal required configuration is listed in the security/landlock/.kunitconfig file. Add an initial landlock_fs KUnit test suite with 7 test cases for filesystem helpers. These are related to the LANDLOCK_ACCESS_FS_REFER right. There is one KUnit test case per: * mutated state (e.g. test_scope_to_request_*) or, * shared state between tests (e.g. test_is_eaccess_*). Add macros to improve readability of tests (i.e. one per line). Test cases are collocated with the tested functions to help maintenance and improve documentation. This is why SECURITY_LANDLOCK_KUNIT_TEST cannot be set as module. This is a nice complement to Landlock's user space kselftests. We expect new Landlock features to come with KUnit tests as well. Thanks to UML support, we can run all KUnit tests for Landlock with: ./tools/testing/kunit/kunit.py run --kunitconfig security/landlock [00:00:00] ======================= landlock_fs ======================= [00:00:00] [PASSED] test_no_more_access [00:00:00] [PASSED] test_scope_to_request_with_exec_none [00:00:00] [PASSED] test_scope_to_request_with_exec_some [00:00:00] [PASSED] test_scope_to_request_without_access [00:00:00] [PASSED] test_is_eacces_with_none [00:00:00] [PASSED] test_is_eacces_with_refer [00:00:00] [PASSED] test_is_eacces_with_write [00:00:00] =================== [PASSED] landlock_fs =================== [00:00:00] ============================================================ [00:00:00] Testing complete. Ran 7 tests: passed: 7 Cc: Konstantin Meskhidze <konstantin.meskhidze@huawei.com> Reviewed-by: Günther Noack <gnoack@google.com> Link: https://lore.kernel.org/r/20240118113632.1948478-1-mic@digikod.net Signed-off-by: Mickaël Salaün <mic@digikod.net>
Diffstat (limited to 'security/landlock/Kconfig')
-rw-r--r--security/landlock/Kconfig15
1 files changed, 15 insertions, 0 deletions
diff --git a/security/landlock/Kconfig b/security/landlock/Kconfig
index c4bf0d5eff39..3f1493402052 100644
--- a/security/landlock/Kconfig
+++ b/security/landlock/Kconfig
@@ -20,3 +20,18 @@ config SECURITY_LANDLOCK
If you are unsure how to answer this question, answer N. Otherwise,
you should also prepend "landlock," to the content of CONFIG_LSM to
enable Landlock at boot time.
+
+config SECURITY_LANDLOCK_KUNIT_TEST
+ bool "KUnit tests for Landlock" if !KUNIT_ALL_TESTS
+ depends on KUNIT=y
+ depends on SECURITY_LANDLOCK
+ default KUNIT_ALL_TESTS
+ help
+ Build KUnit tests for Landlock.
+
+ See the KUnit documentation in Documentation/dev-tools/kunit
+
+ Run all KUnit tests for Landlock with:
+ ./tools/testing/kunit/kunit.py run --kunitconfig security/landlock
+
+ If you are unsure how to answer this question, answer N.