diff --git a/src/python/loxi/of13/util.py b/src/python/loxi/of13/util.py
index d431d4c..56b5729 100644
--- a/src/python/loxi/of13/util.py
+++ b/src/python/loxi/of13/util.py
@@ -1,6 +1,7 @@
 # Copyright (c) 2008 The Board of Trustees of The Leland Stanford Junior University
 # Copyright (c) 2011, 2012 Open Networking Foundation
 # Copyright (c) 2012, 2013 Big Switch Networks, Inc.
+# See the file LICENSE.pyloxi which should have been included in the source distribution
 
 # Automatically generated by LOXI from template util.py
 # Do not modify
@@ -35,3 +36,36 @@
         if v == v2:
             return k
     return v
+
+def pack_port_no(value):
+    return struct.pack("!L", value)
+
+def unpack_port_no(reader):
+    return reader.read("!L")[0]
+
+def pack_fm_cmd(value):
+    return struct.pack("!B", value)
+
+def unpack_fm_cmd(reader):
+    return reader.read("!B")[0]
+
+def init_wc_bmap():
+    return 0
+
+def pack_wc_bmap(value):
+    return struct.pack("!Q", value)
+
+def unpack_wc_bmap(reader):
+    return reader.read("!Q")[0]
+
+def init_match_bmap():
+    return 0
+
+def pack_match_bmap(value):
+    return struct.pack("!Q", value)
+
+def unpack_match_bmap(reader):
+    return reader.read("!Q")[0]
+
+def pack_list(values):
+    return "".join([x.pack() for x in values])