61 lines
2.4 KiB
Python
61 lines
2.4 KiB
Python
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# This file is part of Scapy
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# Scapy is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 2 of the License, or
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# any later version.
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#
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# Scapy is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Scapy. If not, see <http://www.gnu.org/licenses/>.
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# IEEE 802.1aq - Shorest Path Bridging Mac-in-mac (SPBM):
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# Ethernet based link state protocol that enables Layer 2 Unicast, Layer 2 Multicast, Layer 3 Unicast, and Layer 3 Multicast virtualized services # noqa: E501
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# https://en.wikipedia.org/wiki/IEEE_802.1aq
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# Modeled after the scapy VXLAN contribution
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# scapy.contrib.description = Shorest Path Bridging Mac-in-mac (SBPM)
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# scapy.contrib.status = loads
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"""
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Example SPB Frame Creation
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Note the outer Dot1Q Ethertype marking (0x88e7)
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backboneEther = Ether(dst='00:bb:00:00:90:00', src='00:bb:00:00:40:00', type=0x8100) # noqa: E501
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backboneDot1Q = Dot1Q(vlan=4051,type=0x88e7)
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backboneServiceID = SPBM(prio=1,isid=20011)
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customerEther = Ether(dst='00:1b:4f:5e:ca:00',src='00:00:00:00:00:01',type=0x8100) # noqa: E501
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customerDot1Q = Dot1Q(prio=1,vlan=11,type=0x0800)
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customerIP = IP(src='10.100.11.10',dst='10.100.12.10',id=0x0629,len=106) # noqa: E501
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customerUDP = UDP(sport=1024,dport=1025,chksum=0,len=86)
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spb_example = backboneEther/backboneDot1Q/backboneServiceID/customerEther/customerDot1Q/customerIP/customerUDP/"Payload" # noqa: E501
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"""
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from scapy.packet import Packet, bind_layers
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from scapy.fields import BitField, ThreeBytesField
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from scapy.layers.l2 import Ether, Dot1Q, Dot1AD
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class SPBM(Packet):
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name = "SPBM"
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fields_desc = [BitField("prio", 0, 3),
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BitField("dei", 0, 1),
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BitField("nca", 0, 1),
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BitField("res1", 0, 1),
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BitField("res2", 0, 2),
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ThreeBytesField("isid", 0)]
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def mysummary(self):
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return self.sprintf("SPBM (isid=%SPBM.isid%")
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bind_layers(Ether, SPBM, type=0x88e7)
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bind_layers(Dot1Q, SPBM, type=0x88e7)
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bind_layers(Dot1AD, SPBM, type=0x88e7)
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bind_layers(SPBM, Ether)
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