--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/servlib/reg/PingRegistration.cc	Thu Apr 21 14:57:45 2011 +0100
@@ -0,0 +1,58 @@
+/*
+ *    Copyright 2004-2006 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <dtn-config.h>
+#endif
+
+#include <oasys/util/ScratchBuffer.h>
+
+#include "PingRegistration.h"
+#include "RegistrationTable.h"
+#include "bundling/BundleDaemon.h"
+
+namespace dtn {
+
+PingRegistration::PingRegistration(const EndpointID& eid)
+    : Registration(PING_REGID, eid, Registration::DEFER, 0, 0)
+{
+    logpathf("/dtn/reg/ping");
+    set_active(true);
+}
+
+void
+PingRegistration::deliver_bundle(Bundle* bundle)
+{
+    size_t payload_len = bundle->payload().length();
+    log_debug("%zu byte ping from %s",
+              payload_len, bundle->source().c_str());
+    
+    Bundle* reply = new Bundle();
+    reply->mutable_source()->assign(endpoint_);
+    reply->mutable_dest()->assign(bundle->source());
+    reply->mutable_replyto()->assign(EndpointID::NULL_EID());
+    reply->mutable_custodian()->assign(EndpointID::NULL_EID());
+    reply->set_expiration(bundle->expiration());
+
+    reply->mutable_payload()->set_length(payload_len);
+    reply->mutable_payload()->write_data(bundle->payload(), 0, payload_len, 0);
+    
+    BundleDaemon::post(new BundleReceivedEvent(reply, EVENTSRC_ADMIN));
+    BundleDaemon::post(new BundleDeliveredEvent(bundle, this));
+}
+
+
+} // namespace dtn