kernel: ksud: provide dummy handlers for old hooks

prevents breaking old builds.

Author: backslashxx

kernel/core_hook.c

@@ -680,6 +680,12 @@ int ksu_handle_setuid(struct cred *new, const struct cred *old)
 	return 0;
 }
 
+int ksu_sb_mount(const char *dev_name, const struct path *path,
+                        const char *type, unsigned long flags, void *data)
+{
+	return 0;
+}
+
 #ifndef DEVPTS_SUPER_MAGIC
 #define DEVPTS_SUPER_MAGIC	0x1cd1
 #endif

kernel/ksud.c

@@ -415,6 +415,20 @@ bool ksu_is_safe_mode()
 	return false;
 }
 
+__maybe_unused int ksu_handle_execve_ksud(const char __user *filename_user,
+			const char __user *const __user *__argv)
+{
+	return 0;
+}
+
+#if defined(CONFIG_COMPAT)
+__maybe_unused int ksu_handle_compat_execve_ksud(const char __user *filename_user,
+			const compat_uptr_t __user *__argv)
+{
+	return 0;
+}
+#endif
+
 static void stop_vfs_read_hook()
 {
 	ksu_vfs_read_hook = false;

kernel/sucompat.c

@@ -152,6 +152,12 @@ int ksu_handle_execveat_sucompat(int *fd, struct filename **filename_ptr,
 	return 0;
 }
 
+// dummified
+int ksu_handle_devpts(struct inode *inode)
+{
+	return 0;
+}
+
 int __ksu_handle_devpts(struct inode *inode)
 {
 	barrier();