wireshark: pick wireshark type/base based on the oftype and field name
diff --git a/wireshark_gen/field_info.py b/wireshark_gen/field_info.py
new file mode 100644
index 0000000..09011c7
--- /dev/null
+++ b/wireshark_gen/field_info.py
@@ -0,0 +1,87 @@
+# 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.
+
+# Map from LOXI types to Wireshark types
+oftype_to_wireshark_type = {
+    "char": "INT8",
+    "uint8_t": "UINT8",
+    "uint16_t": "UINT16",
+    "uint32_t": "UINT32",
+    "uint64_t": "UINT64",
+    "of_mac_addr_t": "ETHER",
+    "of_ipv4_t": "IPv4",
+    "of_ipv6_t": "IPv6",
+    "of_port_name_t": "STRINGZ",
+    "of_table_name_t": "STRINGZ",
+    "of_desc_str_t": "STRINGZ",
+    "of_serial_num_t": "STRINGZ",
+    "of_octets_t": "BYTES",
+    "of_port_no_t": "UINT32",
+    "of_port_desc_t": "STRINGZ",
+    "of_bsn_vport_t": "BYTES",
+    "of_bsn_vport_q_in_q_t": "BYTES",
+    "of_fm_cmd_t": "UINT16",
+    "of_wc_bmap_t": "UINT64",
+    "of_match_bmap_t": "UINT64",
+    "of_match_t": "BYTES",
+    "of_oxm_t": "BYTES",
+    "of_meter_features_t": "BYTES",
+}
+
+# Map from LOXI type to Wireshark base
+oftype_to_base = {
+    "char": "DEC",
+    "uint8_t": "DEC",
+    "uint16_t": "DEC",
+    "uint32_t": "DEC",
+    "uint64_t": "DEC",
+    "of_mac_addr_t": "NONE",
+    "of_ipv4_t": "NONE",
+    "of_ipv6_t": "NONE",
+    "of_port_name_t": "NONE",
+    "of_table_name_t": "NONE",
+    "of_desc_str_t": "NONE",
+    "of_serial_num_t": "NONE",
+    "of_octets_t": "NONE",
+    "of_port_no_t": "DEC",
+    "of_port_desc_t": "NONE",
+    "of_bsn_vport_t": "NONE",
+    "of_bsn_vport_q_in_q_t": "NONE",
+    "of_fm_cmd_t": "DEC",
+    "of_wc_bmap_t": "HEX",
+    "of_match_bmap_t": "HEX",
+    "of_match_t": "NONE",
+    "of_oxm_t": "NONE",
+    "of_meter_features_t": "NONE",
+}
+
+# Override oftype_to_base for certain field names
+field_to_base = {
+    "eth_type": "HEX",
+    "cookie": "HEX",
+    "datapath_id": "HEX",
+}