add susfs-dev branch files

kernel/manager.h

@@ -0,0 +1,36 @@
+#ifndef __KSU_H_KSU_MANAGER
+#define __KSU_H_KSU_MANAGER
+
+#include <linux/cred.h>
+#include <linux/types.h>
+
+#define KSU_INVALID_UID -1
+
+extern uid_t ksu_manager_uid; // DO NOT DIRECT USE
+
+static inline bool ksu_is_manager_uid_valid()
+{
+	return ksu_manager_uid != KSU_INVALID_UID;
+}
+
+static inline bool ksu_is_manager()
+{
+	return unlikely(ksu_manager_uid == current_uid().val);
+}
+
+static inline uid_t ksu_get_manager_uid()
+{
+	return ksu_manager_uid;
+}
+
+static inline void ksu_set_manager_uid(uid_t uid)
+{
+	ksu_manager_uid = uid;
+}
+
+static inline void ksu_invalidate_manager_uid()
+{
+	ksu_manager_uid = KSU_INVALID_UID;
+}
+
+#endif