blob: 92c4e260749672f2d11c28f18bd2ad012224ce37 [file] [log] [blame]
Rich Lanea06d0c32013-03-25 08:52:03 -07001:: # Copyright 2013, Big Switch Networks, Inc.
2:: #
3:: # LoxiGen is licensed under the Eclipse Public License, version 1.0 (EPL), with
4:: # the following special exception:
5:: #
6:: # LOXI Exception
7:: #
8:: # As a special exception to the terms of the EPL, you may distribute libraries
9:: # generated by LoxiGen (LoxiGen Libraries) under the terms of your choice, provided
10:: # that copyright and licensing notices generated by LoxiGen are not altered or removed
11:: # from the LoxiGen Libraries and the notice provided below is (i) included in
12:: # the LoxiGen Libraries, if distributed in source code form and (ii) included in any
13:: # documentation for the LoxiGen Libraries, if distributed in binary form.
14:: #
15:: # Notice: "Copyright 2013, Big Switch Networks, Inc. This library was generated by the LoxiGen Compiler."
16:: #
17:: # You may not use this file except in compliance with the EPL or LOXI Exception. You may obtain
18:: # a copy of the EPL at:
19:: #
20:: # http://www.eclipse.org/legal/epl-v10.html
21:: #
22:: # Unless required by applicable law or agreed to in writing, software
23:: # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
24:: # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
25:: # EPL for the specific language governing permissions and limitations
26:: # under the EPL.
27::
28:: import itertools
Andreas Wundsam5630c422013-11-15 13:43:11 -080029:: from loxi_globals import OFVersions
Rich Lane002e70c2013-05-09 17:08:16 -070030:: import py_gen.util as util
Rich Lanea06d0c32013-03-25 08:52:03 -070031:: include('_copyright.py')
32
33:: include('_autogen.py')
34
35import struct
36import const
37import util
Rich Lane15cbe842013-04-26 16:04:11 -070038import loxi.generic_util
Rich Lanea06d0c32013-03-25 08:52:03 -070039import loxi
Andreas Wundsam5630c422013-11-15 13:43:11 -080040:: if version >= OFVersions.VERSION_1_2:
Rich Lanebe90eae2013-07-22 16:44:26 -070041import oxm # for unpack
42:: #endif
Rich Lanea06d0c32013-03-25 08:52:03 -070043
Rich Lane57026dc2013-05-01 10:13:16 -070044def unpack_list(reader):
45 def deserializer(reader, typ):
46 parser = parsers.get(typ)
47 if not parser: raise loxi.ProtocolError("unknown action type %d" % typ)
48 return parser(reader)
49 return loxi.generic_util.unpack_list_tlv16(reader, deserializer)
Rich Lanea06d0c32013-03-25 08:52:03 -070050
51class Action(object):
52 type = None # override in subclass
53 pass
54
55:: for ofclass in ofclasses:
Rich Laned1dd9e62013-02-20 18:28:01 -080056:: include('_ofclass.py', ofclass=ofclass, superclass="Action")
Rich Lanea06d0c32013-03-25 08:52:03 -070057
58:: #endfor
59
Rich Lane57026dc2013-05-01 10:13:16 -070060def parse_experimenter(reader):
Rich Lane57026dc2013-05-01 10:13:16 -070061 experimenter, = reader.peek("!4xL")
Rich Lanea06d0c32013-03-25 08:52:03 -070062 if experimenter == 0x005c16c7: # Big Switch Networks
Rich Lane57026dc2013-05-01 10:13:16 -070063 subtype, = reader.peek("!8xL")
Rich Lanea06d0c32013-03-25 08:52:03 -070064 elif experimenter == 0x00002320: # Nicira
Rich Lane57026dc2013-05-01 10:13:16 -070065 subtype, = reader.peek("!8xH")
Rich Lanea06d0c32013-03-25 08:52:03 -070066 else:
67 raise loxi.ProtocolError("unexpected experimenter id %#x" % experimenter)
68
69 if subtype in experimenter_parsers[experimenter]:
Rich Lane57026dc2013-05-01 10:13:16 -070070 return experimenter_parsers[experimenter][subtype](reader)
Rich Lanea06d0c32013-03-25 08:52:03 -070071 else:
72 raise loxi.ProtocolError("unexpected BSN experimenter subtype %#x" % subtype)
73
74parsers = {
75:: sort_key = lambda x: x.type_members[0].value
76:: msgtype_groups = itertools.groupby(sorted(ofclasses, key=sort_key), sort_key)
77:: for (k, v) in msgtype_groups:
Rich Lane002e70c2013-05-09 17:08:16 -070078:: k = util.constant_for_value(version, "ofp_action_type", k)
Rich Lanea06d0c32013-03-25 08:52:03 -070079:: v = list(v)
80:: if len(v) == 1:
81 ${k} : ${v[0].pyname}.unpack,
82:: else:
83 ${k} : parse_${k[12:].lower()},
84:: #endif
85:: #endfor
86}
87
Rich Lane002e70c2013-05-09 17:08:16 -070088:: experimenter_ofclasses = [x for x in ofclasses if x.type_members[0].value == 0xffff]
Rich Lanea06d0c32013-03-25 08:52:03 -070089:: sort_key = lambda x: x.type_members[1].value
90:: experimenter_ofclasses.sort(key=sort_key)
91:: grouped = itertools.groupby(experimenter_ofclasses, sort_key)
92experimenter_parsers = {
93:: for (experimenter, v) in grouped:
94 ${experimenter} : {
95:: for ofclass in v:
96 ${ofclass.type_members[2].value}: ${ofclass.pyname}.unpack,
97:: #endfor
98 },
99:: #endfor
100}