blob: 92c4e260749672f2d11c28f18bd2ad012224ce37 [file] [log] [blame]
:: # 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.
::
:: import itertools
:: from loxi_globals import OFVersions
:: import py_gen.util as util
:: include('_copyright.py')
:: include('_autogen.py')
import struct
import const
import util
import loxi.generic_util
import loxi
:: if version >= OFVersions.VERSION_1_2:
import oxm # for unpack
:: #endif
def unpack_list(reader):
def deserializer(reader, typ):
parser = parsers.get(typ)
if not parser: raise loxi.ProtocolError("unknown action type %d" % typ)
return parser(reader)
return loxi.generic_util.unpack_list_tlv16(reader, deserializer)
class Action(object):
type = None # override in subclass
pass
:: for ofclass in ofclasses:
:: include('_ofclass.py', ofclass=ofclass, superclass="Action")
:: #endfor
def parse_experimenter(reader):
experimenter, = reader.peek("!4xL")
if experimenter == 0x005c16c7: # Big Switch Networks
subtype, = reader.peek("!8xL")
elif experimenter == 0x00002320: # Nicira
subtype, = reader.peek("!8xH")
else:
raise loxi.ProtocolError("unexpected experimenter id %#x" % experimenter)
if subtype in experimenter_parsers[experimenter]:
return experimenter_parsers[experimenter][subtype](reader)
else:
raise loxi.ProtocolError("unexpected BSN experimenter subtype %#x" % subtype)
parsers = {
:: sort_key = lambda x: x.type_members[0].value
:: msgtype_groups = itertools.groupby(sorted(ofclasses, key=sort_key), sort_key)
:: for (k, v) in msgtype_groups:
:: k = util.constant_for_value(version, "ofp_action_type", k)
:: v = list(v)
:: if len(v) == 1:
${k} : ${v[0].pyname}.unpack,
:: else:
${k} : parse_${k[12:].lower()},
:: #endif
:: #endfor
}
:: experimenter_ofclasses = [x for x in ofclasses if x.type_members[0].value == 0xffff]
:: sort_key = lambda x: x.type_members[1].value
:: experimenter_ofclasses.sort(key=sort_key)
:: grouped = itertools.groupby(experimenter_ofclasses, sort_key)
experimenter_parsers = {
:: for (experimenter, v) in grouped:
${experimenter} : {
:: for ofclass in v:
${ofclass.type_members[2].value}: ${ofclass.pyname}.unpack,
:: #endfor
},
:: #endfor
}