diff --git a/openflow_input/bsn_flow_checksum b/openflow_input/bsn_flow_checksum
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+// Copyright 2013, Big Switch Networks, Inc.
+//
+// LoxiGen is licensed under the Eclipse Public License,
+// version 1.0 (EPL), with the following special exception:
+//
+// LOXI Exception
+//
+// As a special exception to the terms of the EPL, you may
+// distribute libraries generated by LoxiGen (LoxiGen Libraries)
+// under the terms of your choice, provided that copyright and
+// licensing notices generated by LoxiGen are not altered or removed
+// from the LoxiGen Libraries and the notice provided below is (i)
+// included in the LoxiGen Libraries, if distributed in source code
+// form and (ii) included in any documentation for the LoxiGen
+// Libraries, if distributed in binary form.
+//
+// Notice: "Copyright 2013, Big Switch Networks, Inc.
+// This library was generated by the LoxiGen Compiler."
+//
+// You may not use this file except in compliance with the EPL or
+// LOXI Exception. You may obtain a copy of the EPL at:
+//
+// http://www.eclipse.org/legal/epl-v10.html
+//
+// 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 EPL for the specific language
+// governing permissions and limitations under the EPL.
+
+#version 4
+
+// Retrieves the checksum for every bucket in a table. The entries are ordered
+// by bucket index.
+//
+// The checksum of a bucket is the XOR of the cookies of all entries in the
+// bucket. Flows are bucketed based on a prefix of the cookie.
+struct of_bsn_flow_checksum_bucket_stats_request : of_bsn_stats_request {
+    uint8_t version;
+    uint8_t type == 18;
+    uint16_t length;
+    uint32_t xid;
+    uint16_t stats_type == 0xffff;
+    enum ofp_stats_request_flags flags;
+    pad(4);
+    uint32_t experimenter == 0x5c16c7;
+    uint32_t subtype == 10;
+    uint8_t table_id;
+};
+
+struct of_bsn_flow_checksum_bucket_stats_entry {
+    uint64_t checksum;
+};
+
+struct of_bsn_flow_checksum_bucket_stats_reply : of_bsn_stats_reply {
+    uint8_t version;
+    uint8_t type == 19;
+    uint16_t length;
+    uint32_t xid;
+    uint16_t stats_type == 0xffff;
+    enum ofp_stats_reply_flags flags;
+    pad(4);
+    uint32_t experimenter == 0x5c16c7;
+    uint32_t subtype == 10;
+    list(of_bsn_flow_checksum_bucket_stats_entry_t) entries;
+};
+
+
+// Retrieves the checksum for every table.
+//
+// The checksum of a table is the XOR of the cookies of all entries in the
+// table.
+struct of_bsn_table_checksum_stats_request : of_bsn_stats_request {
+    uint8_t version;
+    uint8_t type == 18;
+    uint16_t length;
+    uint32_t xid;
+    uint16_t stats_type == 0xffff;
+    enum ofp_stats_request_flags flags;
+    pad(4);
+    uint32_t experimenter == 0x5c16c7;
+    uint32_t subtype == 11;
+};
+
+struct of_bsn_table_checksum_stats_entry {
+    uint8_t table_id;
+    uint64_t checksum;
+};
+
+struct of_bsn_table_checksum_stats_reply : of_bsn_stats_reply {
+    uint8_t version;
+    uint8_t type == 19;
+    uint16_t length;
+    uint32_t xid;
+    uint16_t stats_type == 0xffff;
+    enum ofp_stats_reply_flags flags;
+    pad(4);
+    uint32_t experimenter == 0x5c16c7;
+    uint32_t subtype == 11;
+    list(of_bsn_table_checksum_stats_entry_t) entries;
+};
+
+
+// This message sets the size of the buckets array. The switch may reject this
+// message if the table has entries. buckets_size must be a power of 2.
+struct of_bsn_table_set_buckets_size : of_bsn_header {
+    uint8_t version;
+    uint8_t type == 4;
+    uint16_t length;
+    uint32_t xid;
+    uint32_t experimenter == 0x5c16c7;
+    uint32_t subtype == 61;
+    uint16_t table_id;
+    pad(2);
+    uint32_t buckets_size;
+};