Add BdsLibUserIdentify API in GenericBdsLib

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9897 6f19259b-4bc3-4df7-8a09-765794883524

IntelFrameworkModulePkg/Library/GenericBdsLib/BdsMisc.c

@@ -1235,3 +1235,34 @@ BdsLibSaveMemoryTypeInformation (
 }
 
 
+/**
+  Identify a user and, if authenticated, returns the current user profile handle.
+
+  @param[out]  User           Point to user profile handle.
+  
+  @retval EFI_SUCCESS         User is successfully identified, or user identification
+                              is not supported.
+  @retval EFI_ACCESS_DENIED   User is not successfully identified
+
+**/
+EFI_STATUS
+EFIAPI
+BdsLibUserIdentify (
+  OUT EFI_USER_PROFILE_HANDLE         *User
+  )
+{
+  EFI_STATUS                          Status;
+  EFI_USER_MANAGER_PROTOCOL           *Manager;
+  
+  Status = gBS->LocateProtocol (
+                  &gEfiUserManagerProtocolGuid,
+                  NULL,
+                  (VOID **) &Manager
+                  );
+  if (EFI_ERROR (Status)) {
+    return EFI_SUCCESS;
+  }
+
+  return Manager->Identify (Manager, User);
+}
+