wireshark_gen/templates/_ofclass_dissector.lua

:: # 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_length_members = []
:: if ofclass.virtual:
    return ${ofclass.name}_v${version.wire_version}_dissectors[reader.peek(${ofclass.discriminator.offset},${ofclass.discriminator.length}):uint()](reader, subtree)
:: else:
:: if not ofclass.is_fixed_length:
    local _length = reader.peek(${ofclass.length_member.offset}, ${ofclass.length_member.base_length}):uint()
    local orig_reader = reader
    reader = orig_reader.slice(_length)
:: #endif
:: for m in ofclass.members:
:: if isinstance(m, OFPadMember):
    reader.skip(${m.length})
:: continue
:: #endif
:: if isinstance(m, OFFieldLengthMember):
    local _${m.field_name}_length = reader.peek(0, ${m.base_length}):uint()
:: field_length_members.append(m.field_name)
:: #endif
:: if m.oftype.startswith("list"):
:: class_name = m.oftype.replace('_t)', '').replace('(', '').replace('list', '')
:: if m.name in field_length_members:
    read_list(reader.slice(_${m.name}_length), dissect_${class_name}_v${version.wire_version}, subtree, '${class_name}')
:: else:
    read_list(reader, dissect_${class_name}_v${version.wire_version}, subtree, '${class_name}')
:: #endif
:: if ofclass.has_external_alignment:
    orig_reader.skip_align()
:: #endif
:: else:
:: field_name = make_field_name(version, ofclass.name, m.name)
:: reader_name = get_reader(version, ofclass, m)
    ${reader_name}(reader, ${version.wire_version}, subtree, '${field_name}')
:: #endif
:: #endfor
    return '${ofclass.name}'
:: #endif
end