--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/servlib/bundling/CustodySignal.h	Thu Apr 21 14:57:45 2011 +0100
@@ -0,0 +1,76 @@
+/*
+ *    Copyright 2006 Intel Corporation
+ * 
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ * 
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+
+#ifndef _CUSTODYSIGNAL_H_
+#define _CUSTODYSIGNAL_H_
+
+#define __STDC_FORMAT_MACROS
+#include <inttypes.h>
+
+#include "Bundle.h"
+#include "BundleProtocol.h"
+
+namespace dtn {
+
+/**
+ * Utility class to format and parse custody signal bundles.
+ */
+class CustodySignal {
+public:
+    /**
+     * The reason codes are defined in the bundle protocol class.
+     */
+    typedef BundleProtocol::custody_signal_reason_t reason_t;
+
+    /**
+     * Struct to hold the payload data of the custody signal.
+     */
+    struct data_t {
+        u_int8_t        admin_type_;
+        u_int8_t        admin_flags_;
+        bool            succeeded_;
+        u_int8_t        reason_;
+        u_int64_t       orig_frag_offset_;
+        u_int64_t       orig_frag_length_;
+        BundleTimestamp custody_signal_tv_;
+        BundleTimestamp orig_creation_tv_;
+        EndpointID      orig_source_eid_;
+    };
+
+    /**
+     * Constructor-like function to create a new custody signal bundle.
+     */
+    static void create_custody_signal(Bundle*           bundle,
+                                      const Bundle*     orig_bundle,
+                                      const EndpointID& source_eid,
+                                      bool              succeeded,
+                                      reason_t          reason);
+
+    /**
+     * Parsing function for custody signal bundles.
+     */
+    static bool parse_custody_signal(data_t* data,
+                                     const u_char* bp, u_int len);
+
+    /**
+     * Pretty printer for custody signal reasons.
+     */
+    static const char* reason_to_str(u_int8_t reason);
+};
+
+} // namespace dtn
+
+#endif /* _CUSTODYSIGNAL_H_ */