diff --git a/MetadataCrypt.h b/MetadataCrypt.h
index a1ce7d8..dc68e7c 100644
--- a/MetadataCrypt.h
+++ b/MetadataCrypt.h
@@ -19,12 +19,21 @@
 
 #include <string>
 
+#include "KeyBuffer.h"
+#include "KeyUtil.h"
+
 namespace android {
 namespace vold {
 
 bool fscrypt_mount_metadata_encrypted(const std::string& block_device,
                                       const std::string& mount_point, bool needs_encrypt);
 
+bool defaultkey_volume_keygen(KeyGeneration* gen);
+
+bool defaultkey_setup_ext_volume(const std::string& label, const std::string& blk_device,
+                                 const android::vold::KeyBuffer& key,
+                                 std::string* out_crypto_blkdev);
+
 }  // namespace vold
 }  // namespace android
 #endif