diff --git a/net/tipc/subscr.h b/net/tipc/subscr.h
new file mode 100644
index 0000000..e6cb9c3
--- /dev/null
+++ b/net/tipc/subscr.h
@@ -0,0 +1,77 @@
+/*
+ * net/tipc/subscr.h: Include file for TIPC subscription service
+ * 
+ * Copyright (c) 2003-2005, Ericsson Research Canada
+ * Copyright (c) 2005, Wind River Systems
+ * Copyright (c) 2005-2006, Ericsson AB
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this 
+ * list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright notice, 
+ * this list of conditions and the following disclaimer in the documentation 
+ * and/or other materials provided with the distribution.
+ * Neither the names of the copyright holders nor the names of its 
+ * contributors may be used to endorse or promote products derived from this 
+ * software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _TIPC_SUBSCR_H
+#define _TIPC_SUBSCR_H
+
+/**
+ * struct subscription - TIPC network topology subscription object
+ * @seq: name sequence associated with subscription
+ * @timeout: duration of subscription (in ms)
+ * @filter: event filtering to be done for subscription
+ * @evt: template for events generated by subscription
+ * @subscription_list: adjacent subscriptions in subscriber's subscription list
+ * @nameseq_list: adjacent subscriptions in name sequence's subscription list
+ * @timer_ref: reference to timer governing subscription duration (may be NULL)
+ * @owner: pointer to subscriber object associated with this subscription
+ */
+ 
+struct subscription {
+	struct tipc_name_seq seq;
+	u32 timeout;
+	u32 filter;
+	struct tipc_event evt;
+	struct list_head subscription_list;
+	struct list_head nameseq_list;
+	struct timer_list timer;
+	struct subscriber *owner;
+};
+
+int subscr_overlap(struct subscription * sub, 
+		   u32 found_lower, 
+		   u32 found_upper);
+
+void subscr_report_overlap(struct subscription * sub, 
+			   u32 found_lower, 
+			   u32 found_upper,
+			   u32 event, 
+			   u32 port_ref, 
+			   u32 node,
+			   int must_report);
+
+int subscr_start(void);
+
+void subscr_stop(void);
+
+
+#endif