Rich Lane | e02314c | 2013-05-02 16:42:04 -0700 | [diff] [blame] | 1 | :: # 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 |
Rich Lane | 002e70c | 2013-05-09 17:08:16 -0700 | [diff] [blame] | 29 | :: import py_gen.util as util |
Rich Lane | e02314c | 2013-05-02 16:42:04 -0700 | [diff] [blame] | 30 | :: include('_copyright.py') |
| 31 | |
| 32 | :: include('_autogen.py') |
| 33 | |
| 34 | import struct |
| 35 | import action |
| 36 | import const |
| 37 | import util |
| 38 | import loxi.generic_util |
| 39 | import loxi |
| 40 | |
| 41 | def unpack_list(reader): |
| 42 | def deserializer(reader, typ): |
| 43 | parser = parsers.get(typ) |
| 44 | if not parser: raise loxi.ProtocolError("unknown instruction type %d" % typ) |
| 45 | return parser(reader) |
| 46 | return loxi.generic_util.unpack_list_tlv16(reader, deserializer) |
| 47 | |
| 48 | class Instruction(object): |
| 49 | type = None # override in subclass |
| 50 | pass |
| 51 | |
| 52 | :: for ofclass in ofclasses: |
| 53 | :: include('_ofclass.py', ofclass=ofclass, superclass="Instruction") |
| 54 | |
| 55 | :: #endfor |
| 56 | |
Rich Lane | 41000ba | 2013-11-18 16:08:14 -0800 | [diff] [blame] | 57 | def parse_experimenter(reader): |
| 58 | experimenter, = reader.peek("!4xL") |
| 59 | if experimenter == 0x005c16c7: # Big Switch Networks |
| 60 | subtype, = reader.peek("!8xL") |
| 61 | else: |
| 62 | raise loxi.ProtocolError("unexpected experimenter id %#x" % experimenter) |
| 63 | |
| 64 | if subtype in experimenter_parsers[experimenter]: |
| 65 | return experimenter_parsers[experimenter][subtype](reader) |
| 66 | else: |
| 67 | raise loxi.ProtocolError("unexpected experimenter id %#x subtype %#x" % (experimenter, subtype)) |
| 68 | |
Rich Lane | e02314c | 2013-05-02 16:42:04 -0700 | [diff] [blame] | 69 | parsers = { |
| 70 | :: sort_key = lambda x: x.type_members[0].value |
| 71 | :: msgtype_groups = itertools.groupby(sorted(ofclasses, key=sort_key), sort_key) |
| 72 | :: for (k, v) in msgtype_groups: |
Rich Lane | 002e70c | 2013-05-09 17:08:16 -0700 | [diff] [blame] | 73 | :: k = util.constant_for_value(version, "ofp_instruction_type", k) |
Rich Lane | e02314c | 2013-05-02 16:42:04 -0700 | [diff] [blame] | 74 | :: v = list(v) |
Rich Lane | 41000ba | 2013-11-18 16:08:14 -0800 | [diff] [blame] | 75 | :: if len(v) == 1 or k == 0xffff: |
Rich Lane | e02314c | 2013-05-02 16:42:04 -0700 | [diff] [blame] | 76 | ${k} : ${v[0].pyname}.unpack, |
| 77 | :: else: |
| 78 | ${k} : parse_${k[12:].lower()}, |
| 79 | :: #endif |
| 80 | :: #endfor |
| 81 | } |
Rich Lane | 41000ba | 2013-11-18 16:08:14 -0800 | [diff] [blame] | 82 | |
| 83 | :: experimenter_ofclasses = [x for x in ofclasses if x.type_members[0].value == 0xffff] |
| 84 | :: sort_key = lambda x: x.type_members[1].value |
| 85 | :: experimenter_ofclasses.sort(key=sort_key) |
| 86 | :: grouped = itertools.groupby(experimenter_ofclasses, sort_key) |
| 87 | experimenter_parsers = { |
| 88 | :: for (experimenter, v) in grouped: |
| 89 | ${experimenter} : { |
| 90 | :: for ofclass in v: |
| 91 | ${ofclass.type_members[2].value}: ${ofclass.pyname}.unpack, |
| 92 | :: #endfor |
| 93 | }, |
| 94 | :: #endfor |
| 95 | } |