| :: # 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. |
| :: |
| :: from loxi_ir import * |
| :: from wireshark_gen import make_field_name, get_reader |
| :: attrs = [] |
| :: if ofclass.virtual: attrs.append("virtual") |
| :: if ofclass.superclass: attrs.append("child") |
| :: if not ofclass.superclass: attrs.append("top-level") |
| -- ${' '.join(attrs)} class ${ofclass.name} |
| :: if ofclass.superclass: |
| -- Child of ${ofclass.superclass.name} |
| :: #endif |
| :: if ofclass.virtual: |
| -- Discriminator is ${ofclass.discriminator.name} |
| :: #endif |
| function ${name}(reader, subtree) |
| :: field = "false" |
| :: if ofclass.virtual: |
| return ${ofclass.name}_v${version.wire_version}_dissectors[reader.peek(${ofclass.discriminator.offset},${ofclass.discriminator.length}):uint()](reader, subtree) |
| :: else: |
| :: r_name = "reader" |
| :: if not ofclass.is_fixed_length: |
| local packet_length = ${r_name}.peek(${ofclass.message_length.offset}, ${ofclass.message_length.base_length}):uint() |
| local packet_reader = ${r_name}.slice(packet_length) |
| :: r_name = "packet_reader" |
| :: #endif |
| :: for m in ofclass.members: |
| :: if isinstance(m, OFPadMember): |
| ${r_name}.skip(${m.length}) |
| :: continue |
| :: #endif |
| :: if isinstance(m, OFFieldLengthMember): |
| local field_length = ${r_name}.read(${m.base_length}):uint() |
| local field_reader = ${r_name}.slice(field_length) |
| :: field = "true" |
| :: continue |
| :: #endif |
| :: if m.oftype.startswith("list"): |
| :: class_name = m.oftype.replace('_t)', '').replace('(', '').replace('list', '') |
| :: if field == "true": |
| :: r_name = "field_reader" |
| :: #endif |
| if not ${r_name}.is_empty() then |
| local field_subtree = subtree:add("${class_name} list", ${r_name}.peek_all(0)) |
| while not ${r_name}.is_empty() do |
| local atom_subtree = field_subtree:add("${class_name}", ${r_name}.peek_all(0)) |
| local info = dissect_${class_name}_v${version.wire_version}(${r_name}, atom_subtree) |
| atom_subtree:set_text(info) |
| end |
| end |
| :: r_name = "packet_reader" |
| :: if ofclass.has_external_alignment: |
| reader.skip_align() |
| :: #endif |
| :: else: |
| :: field_name = make_field_name(version, ofclass.name, m.name) |
| :: reader_name = get_reader(version, ofclass, m) |
| ${reader_name}(${r_name}, ${version.wire_version}, subtree, '${field_name}') |
| :: #endif |
| :: #endfor |
| return '${ofclass.name}' |
| :: #endif |
| end |