[RFC PATCH 11/20] selftests/bpf: Add Landlock kfunc declarations

Justin Suess
2026-04-07T20:02:36Z

Expose the Landlock kfuncs to the BPF selftests.

Signed-off-by: Justin Suess <utilityemal77@gmail.com>
---
tools/testing/selftests/bpf/bpf_kfuncs.h | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)

diff --git a/tools/testing/selftests/bpf/bpf_kfuncs.h b/tools/testing/selftests/bpf/bpf_kfuncs.h
index 7dad01439391..00f2b337a232 100644
--- a/tools/testing/selftests/bpf/bpf_kfuncs.h
+++ b/tools/testing/selftests/bpf/bpf_kfuncs.h
@@ -79,6 +79,26 @@ extern int bpf_verify_pkcs7_signature(struct bpf_dynptr *data_ptr,
struct bpf_dynptr *sig_ptr,
struct bpf_key *trusted_keyring) __ksym;

+struct bpf_landlock_ruleset;
+/*
+ * Description
+ * Put a Landlock ruleset obtained from a Landlock ruleset map lookup.
+ */
+
+void bpf_landlock_put_ruleset(const struct bpf_landlock_ruleset *ruleset)
+ __ksym __weak;
+/*
+ * Description
+ * Modifies the credential of the passed binary parameters to enforce the
+ * provided landlock ruleset on the new credentials. The ruleset should
+ * have been obtained from a Landlock ruleset map lookup.
+ * Returns
+ * Error code same as those returned by landlock_restrict_self
+ */
+int bpf_landlock_restrict_binprm(struct linux_binprm *bprm,
+ const struct bpf_landlock_ruleset *ruleset,
+ __u32 flags) __ksym __weak;
+
struct dentry;
/* Description
* Returns xattr of a dentry
--
2.53.0