diff --git a/FsCrypt.cpp b/FsCrypt.cpp
index 3eb4599..2be685f 100644
--- a/FsCrypt.cpp
+++ b/FsCrypt.cpp
@@ -322,6 +322,10 @@
     return true;
 }
 
+bool is_metadata_wrapped_key_supported() {
+    return GetEntryForMountPoint(&fstab_default, METADATA_MNT_POINT)->fs_mgr_flags.wrapped_key;
+}
+
 // Prepare a directory without assigning it an encryption policy.  The directory
 // will inherit the encryption policy of its parent directory, or will be
 // unencrypted if the parent directory is unencrypted.
diff --git a/FsCrypt.h b/FsCrypt.h
index be21fba..d4a482c 100644
--- a/FsCrypt.h
+++ b/FsCrypt.h
@@ -36,3 +36,4 @@
 bool fscrypt_destroy_user_storage(const std::string& volume_uuid, userid_t user_id, int flags);
 
 bool fscrypt_destroy_volume_keys(const std::string& volume_uuid);
+bool is_metadata_wrapped_key_supported();
diff --git a/VoldUtil.h b/VoldUtil.h
index ce6b411..e0945bf 100644
--- a/VoldUtil.h
+++ b/VoldUtil.h
@@ -21,3 +21,4 @@
 extern android::fs_mgr::Fstab fstab_default;
 
 #define DATA_MNT_POINT "/data"
+#define METADATA_MNT_POINT "/metadata"