diff --git a/flash_size.hpp b/flash_size.hpp
new file mode 100644
index 0000000..9cec240
--- /dev/null
+++ b/flash_size.hpp
@@ -0,0 +1,16 @@
+#pragma once
+
+#include "handler.hpp"
+
+#include <ipmid/api.h>
+
+namespace google
+{
+namespace ipmi
+{
+
+ipmi_ret_t getFlashSize(const uint8_t* reqBuf, uint8_t* replyBuf,
+                        size_t* dataLen, HandlerInterface* handler);
+
+} // namespace ipmi
+} // namespace google