1 files changed, 17 insertions, 0 deletions
diff --git a/src/DotNetOpenAuth.Core/Messaging/IDirectResponseProtocolMessage.cs b/src/DotNetOpenAuth.Core/Messaging/IDirectResponseProtocolMessage.cs
new file mode 100644
index 0000000..3b4da6c
--- /dev/null
+++ b/src/DotNetOpenAuth.Core/Messaging/IDirectResponseProtocolMessage.cs
@@ -0,0 +1,17 @@
+//-----------------------------------------------------------------------
+// <copyright file="IDirectResponseProtocolMessage.cs" company="Andrew Arnott">
+//     Copyright (c) Andrew Arnott. All rights reserved.
+// </copyright>
+//-----------------------------------------------------------------------
+
+namespace DotNetOpenAuth.Messaging {
+	/// <summary>
+	/// Undirected messages that serve as direct responses to direct requests.
+	/// </summary>
+	public interface IDirectResponseProtocolMessage : IProtocolMessage {
+		/// <summary>
+		/// Gets the originating request message that caused this response to be formed.
+		/// </summary>
+		IDirectedProtocolMessage OriginatingRequest { get; }
+	}
+}