| |
| # Copyright 2017-present Open Networking Foundation |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # 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 License for the specific language governing permissions and |
| # limitations under the License. |
| |
| |
| # Imported from scapy at revision 1270:113ef25f9583 |
| # This file is not included in the Ubuntu packages of scapy, so it is checked |
| # in to our repo to simplify installation. This file is under the GPLv2. |
| |
| # http://trac.secdev.org/scapy/ticket/31 |
| |
| # scapy.contrib.description = MPLS |
| # scapy.contrib.status = loads |
| |
| from scapy.packet import Packet,bind_layers |
| from scapy.fields import BitField,ByteField |
| from scapy.layers.l2 import Ether |
| |
| class MPLS(Packet): |
| name = "MPLS" |
| fields_desc = [ BitField("label", 3, 20), |
| BitField("cos", 0, 3), |
| BitField("s", 1, 1), |
| ByteField("ttl", 0) ] |
| |
| bind_layers(Ether, MPLS, type=0x8847) |
| |
| # Not in upstream scapy |
| bind_layers(MPLS, MPLS, s=0) |