scapy.contrib.isis¶

IS-IS Scapy Extension¶

copyright

2014-2016 BENOCS GmbH, Berlin (Germany)

author

Marcel Patzlaff, mpatzlaff@benocs.com Michal Kaliszan, mkaliszan@benocs.com

license

GPLv2

This module is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This module is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

description

This module provides Scapy layers for the Intermediate System to Intermediate System routing protocol as defined in RFC 1195.

Currently it (partially) supports the packaging/encoding requirements of the following RFCs: * RFC 1195 (only the TCP/IP related part) * RFC 3358 (optional checksums) * RFC 5301 (dynamic hostname extension) * RFC 5302 (domain-wide prefix distribution) * RFC 5303 (three-way handshake) * RFC 5304 (cryptographic authentication) * RFC 5308 (routing IPv6 with IS-IS)

TODO

packet relations (requests, responses)
support for recent RFCs: * RFC 5305 (traffic engineering) * RFC 5307 (support for G-MPLS) * RFC 5310 (generic cryptographic authentication) * RFC 5316 (inter-AS MPLS and G-MPLS TE)

class scapy.contrib.isis.ISIS_32bitAdministrativeTagSubTlv¶

Bases: scapy.contrib.isis.ISIS_GenericSubTlv

aliastypes¶

fields_desc¶

ISIS_32bitAdministrativeTagSubTlv fields¶
type	`ByteEnumField`	`1`
len	`FieldLenField`	`None`
tags	`FieldListField`	`[]`

class scapy.contrib.isis.ISIS_64bitAdministrativeTagSubTlv¶

Bases: scapy.contrib.isis.ISIS_GenericSubTlv

aliastypes¶

fields_desc¶

ISIS_64bitAdministrativeTagSubTlv fields¶
type	`ByteEnumField`	`2`
len	`FieldLenField`	`None`
tags	`FieldListField`	`[]`

class scapy.contrib.isis.ISIS_AdministrativeGroupSubTlv¶

Bases: scapy.contrib.isis.ISIS_GenericSubTlv

aliastypes¶

fields_desc¶

ISIS_AdministrativeGroupSubTlv fields¶
code	`ByteEnumField`	`3`
len	`FieldLenField`	`None`
admingroup	`IPField`	`'0.0.0.1'`

class scapy.contrib.isis.ISIS_AreaEntry¶

Bases: scapy.packet.Packet

aliastypes¶

extract_padding(s)¶

fields_desc¶

ISIS_AreaEntry fields¶
arealen	`FieldLenField`	`None`
areaid	`ISIS_AreaIdField`	`'49'`

class scapy.contrib.isis.ISIS_AreaIdField(name, default, length_from)¶

Bases: scapy.fields.Field

addfield(pkt, s, val)¶

getfield(pkt, s)¶

i2len(pkt, x)¶

i2m(pkt, x)¶

length_from¶

m2i(pkt, x)¶

randval()¶

class scapy.contrib.isis.ISIS_AreaTlv¶

Bases: scapy.contrib.isis.ISIS_GenericTlv

aliastypes¶

fields_desc¶

ISIS_AreaTlv fields¶
type	`ByteEnumField`	`1`
len	`FieldLenField`	`None`
areas	`PacketListField`	`[]`

class scapy.contrib.isis.ISIS_AuthenticationTlv¶

Bases: scapy.contrib.isis.ISIS_GenericTlv

aliastypes¶

fields_desc¶

ISIS_AuthenticationTlv fields¶
type	`ByteEnumField`	`10`
len	`FieldLenField`	`None`
authtype	`ByteEnumField`	`1`
password	`BoundStrLenField`	`b''`

class scapy.contrib.isis.ISIS_BufferSizeTlv¶

Bases: scapy.contrib.isis.ISIS_GenericTlv

aliastypes¶

fields_desc¶

ISIS_BufferSizeTlv fields¶
type	`ByteEnumField`	`14`
len	`ByteField`	`2`
lspbuffersize	`ShortField`	`1497`

class scapy.contrib.isis.ISIS_ChecksumTlv¶

Bases: scapy.contrib.isis.ISIS_GenericTlv

aliastypes¶

fields_desc¶

ISIS_ChecksumTlv fields¶
type	`ByteEnumField`	`12`
len	`ByteField`	`2`
checksum	`XShortField`	`None`

class scapy.contrib.isis.ISIS_CircuitTypeField(name='circuittype', default=2, size=8, names=None)¶: Bases: scapy.fields.FlagsField

class scapy.contrib.isis.ISIS_CommonHdr¶

Bases: scapy.packet.Packet

aliastypes¶

fields_desc¶

ISIS_CommonHdr fields¶
nlpid	`ByteEnumField`	`131`
hdrlen	`ByteField`	`None`
version	`ByteField`	`1`
idlen	`ByteField`	`0`
pdutype	`ByteEnumField`	`None`
pduversion	`ByteField`	`1`
hdrreserved	`ByteField`	`0`
maxareaaddr	`ByteField`	`0`

payload_guess¶: Possible sublayers: ISIS_L1_CSNP, ISIS_L1_LAN_Hello, ISIS_L1_LSP, ISIS_L1_PSNP, ISIS_L2_CSNP, ISIS_L2_LAN_Hello, ISIS_L2_LSP, ISIS_L2_PSNP, ISIS_P2P_Hello

post_build(pkt, pay)¶

class scapy.contrib.isis.ISIS_DynamicHostnameTlv¶

Bases: scapy.contrib.isis.ISIS_GenericTlv

aliastypes¶

fields_desc¶

ISIS_DynamicHostnameTlv fields¶
type	`ByteEnumField`	`137`
len	`FieldLenField`	`None`
hostname	`BoundStrLenField`	`b''`

class scapy.contrib.isis.ISIS_ExtendedIpPrefix¶

Bases: scapy.packet.Packet

aliastypes¶

extract_padding(s)¶

fields_desc¶

ISIS_ExtendedIpPrefix fields¶
metric	`IntField`	`1`
updown	`BitField` (1 bit)	`0`
subtlvindicator	`BitField` (1 bit)	`0`
pfxlen	`BitFieldLenField` (6 bits)	`None`
pfx	`IPPrefixField`	`('0.0.0.0', 1)`
subtlvslen	`FieldLenField` (Cond)	`None`
subtlvs	`PacketListField` (Cond)	`[]`

class scapy.contrib.isis.ISIS_ExtendedIpReachabilityTlv¶

Bases: scapy.contrib.isis.ISIS_GenericTlv

aliastypes¶

fields_desc¶

ISIS_ExtendedIpReachabilityTlv fields¶
type	`ByteEnumField`	`135`
len	`FieldLenField`	`None`
pfxs	`PacketListField`	`[]`

class scapy.contrib.isis.ISIS_ExtendedIsNeighbourEntry¶

Bases: scapy.packet.Packet

aliastypes¶

extract_padding(s)¶

fields_desc¶

ISIS_ExtendedIsNeighbourEntry fields¶
neighbourid	`ISIS_NodeIdField`	`'0102.0304.0506.07'`
metric	`ThreeBytesField`	`1`
subtlvslen	`FieldLenField`	`None`
subtlvs	`PacketListField`	`[]`

class scapy.contrib.isis.ISIS_ExtendedIsReachabilityTlv¶

Bases: scapy.contrib.isis.ISIS_GenericTlv

aliastypes¶

fields_desc¶

ISIS_ExtendedIsReachabilityTlv fields¶
type	`ByteEnumField`	`22`
len	`FieldLenField`	`None`
neighbours	`PacketListField`	`[]`

class scapy.contrib.isis.ISIS_ExternalIpReachabilityTlv¶

Bases: scapy.contrib.isis.ISIS_GenericTlv

aliastypes¶

fields_desc¶

ISIS_ExternalIpReachabilityTlv fields¶
type	`ByteEnumField`	`130`
len	`FieldLenField`	`None`
entries	`PacketListField`	`[]`

class scapy.contrib.isis.ISIS_GenericSubTlv¶

Bases: scapy.contrib.isis._ISIS_GenericTlv_Base

aliastypes¶

fields_desc¶

ISIS_GenericSubTlv fields¶
type	`ByteField`	`0`
len	`FieldLenField`	`None`
val	`BoundStrLenField`	`b''`

class scapy.contrib.isis.ISIS_GenericTlv¶

Bases: scapy.contrib.isis._ISIS_GenericTlv_Base

aliastypes¶

fields_desc¶

ISIS_GenericTlv fields¶
type	`ByteField`	`0`
len	`FieldLenField`	`None`
val	`BoundStrLenField`	`b''`

class scapy.contrib.isis.ISIS_IPv4InterfaceAddressSubTlv¶

Bases: scapy.contrib.isis.ISIS_GenericSubTlv

aliastypes¶

fields_desc¶

ISIS_IPv4InterfaceAddressSubTlv fields¶
type	`ByteEnumField`	`6`
len	`FieldLenField`	`None`
address	`IPField`	`'0.0.0.0'`

class scapy.contrib.isis.ISIS_IPv4NeighborAddressSubTlv¶

Bases: scapy.contrib.isis.ISIS_GenericSubTlv

aliastypes¶

fields_desc¶

ISIS_IPv4NeighborAddressSubTlv fields¶
type	`ByteEnumField`	`8`
len	`FieldLenField`	`None`
address	`IPField`	`'0.0.0.0'`

class scapy.contrib.isis.ISIS_IPv6InterfaceAddressSubTlv¶

Bases: scapy.contrib.isis.ISIS_GenericSubTlv

aliastypes¶

fields_desc¶

ISIS_IPv6InterfaceAddressSubTlv fields¶
type	`ByteEnumField`	`12`
len	`FieldLenField`	`None`
address	`IP6Field`	`'::'`

class scapy.contrib.isis.ISIS_IPv6NeighborAddressSubTlv¶

Bases: scapy.contrib.isis.ISIS_GenericSubTlv

aliastypes¶

fields_desc¶

ISIS_IPv6NeighborAddressSubTlv fields¶
type	`ByteEnumField`	`13`
len	`FieldLenField`	`None`
address	`IP6Field`	`'::'`

class scapy.contrib.isis.ISIS_InternalIpReachabilityTlv¶

Bases: scapy.contrib.isis.ISIS_GenericTlv

aliastypes¶

fields_desc¶

ISIS_InternalIpReachabilityTlv fields¶
type	`ByteEnumField`	`128`
len	`FieldLenField`	`None`
entries	`PacketListField`	`[]`

class scapy.contrib.isis.ISIS_IpInterfaceAddressTlv¶

Bases: scapy.contrib.isis.ISIS_GenericTlv

aliastypes¶

fields_desc¶

ISIS_IpInterfaceAddressTlv fields¶
type	`ByteEnumField`	`132`
len	`FieldLenField`	`None`
addresses	`FieldListField`	`[]`

class scapy.contrib.isis.ISIS_IpReachabilityEntry¶

Bases: scapy.packet.Packet

aliastypes¶

extract_padding(s)¶

fields_desc¶

ISIS_IpReachabilityEntry fields¶
defmetric	`ByteField`	`1`
delmetric	`ByteField`	`128`
expmetric	`ByteField`	`128`
errmetric	`ByteField`	`128`
ipaddress	`IPField`	`'0.0.0.0'`
subnetmask	`IPField`	`'255.255.255.255'`

class scapy.contrib.isis.ISIS_Ipv6InterfaceAddressTlv¶

Bases: scapy.contrib.isis.ISIS_GenericTlv

aliastypes¶

fields_desc¶

ISIS_Ipv6InterfaceAddressTlv fields¶
type	`ByteEnumField`	`232`
len	`FieldLenField`	`None`
addresses	`IP6ListField`	`[]`

class scapy.contrib.isis.ISIS_Ipv6Prefix¶

Bases: scapy.packet.Packet

aliastypes¶

extract_padding(s)¶

fields_desc¶

ISIS_Ipv6Prefix fields¶
metric	`IntField`	`1`
updown	`BitField` (1 bit)	`0`
external	`BitField` (1 bit)	`0`
subtlvindicator	`BitField` (1 bit)	`0`
reserved	`BitField` (5 bits)	`0`
pfxlen	`FieldLenField`	`None`
pfx	`IP6PrefixField`	`('::', 1)`
subtlvslen	`FieldLenField` (Cond)	`None`
subtlvs	`PacketListField` (Cond)	`[]`

class scapy.contrib.isis.ISIS_Ipv6ReachabilityTlv¶

Bases: scapy.contrib.isis.ISIS_GenericTlv

aliastypes¶

fields_desc¶

ISIS_Ipv6ReachabilityTlv fields¶
type	`ByteEnumField`	`236`
len	`FieldLenField`	`None`
pfxs	`PacketListField`	`[]`

class scapy.contrib.isis.ISIS_IsNeighbourTlv¶

Bases: scapy.contrib.isis.ISIS_GenericTlv

aliastypes¶

fields_desc¶

ISIS_IsNeighbourTlv fields¶
type	`ByteEnumField`	`6`
len	`FieldLenField`	`None`
neighbours	`FieldListField`	`[]`

class scapy.contrib.isis.ISIS_IsReachabilityEntry¶

Bases: scapy.packet.Packet

aliastypes¶

extract_padding(s)¶

fields_desc¶

ISIS_IsReachabilityEntry fields¶
defmetric	`ByteField`	`1`
delmetric	`ByteField`	`128`
expmetric	`ByteField`	`128`
errmetric	`ByteField`	`128`
neighbourid	`ISIS_NodeIdField`	`'0102.0304.0506.07'`

class scapy.contrib.isis.ISIS_IsReachabilityTlv¶

Bases: scapy.contrib.isis.ISIS_GenericTlv

aliastypes¶

fields_desc¶

ISIS_IsReachabilityTlv fields¶
type	`ByteEnumField`	`2`
len	`FieldLenField`	`None`
virtual	`ByteField`	`0`
neighbours	`PacketListField`	`[]`

class scapy.contrib.isis.ISIS_L1_CSNP¶

Bases: scapy.contrib.isis._ISIS_CSNP_Base

aliastypes¶

answers(other)¶

fields_desc¶

ISIS_L1_CSNP fields¶
pdulength	`_ISIS_PduLengthField`	`None`
sourceid	`ISIS_NodeIdField`	`'0102.0304.0506.00'`
startlspid	`ISIS_LspIdField`	`'0000.0000.0000.00-00'`
endlspid	`ISIS_LspIdField`	`'FFFF.FFFF.FFFF.FF-FF'`
tlvs	`_ISIS_TlvListField`	`[]`

class scapy.contrib.isis.ISIS_L1_LAN_Hello¶

Bases: scapy.contrib.isis._ISIS_LAN_HelloBase

aliastypes¶

fields_desc¶

ISIS_L1_LAN_Hello fields¶
circuittype	`ISIS_CircuitTypeField` (8 bits)	`<Flag 2 (L2)>`
sourceid	`ISIS_SystemIdField`	`'0102.0304.0506'`
holdingtime	`ShortField`	`30`
pdulength	`_ISIS_PduLengthField`	`None`
priority	`ByteField`	`1`
lanid	`ISIS_NodeIdField`	`'0000.0000.0000.00'`
tlvs	`_ISIS_TlvListField`	`[]`

class scapy.contrib.isis.ISIS_L1_LSP¶

Bases: scapy.contrib.isis._ISIS_LSP_Base

aliastypes¶

answers(other)¶

fields_desc¶

ISIS_L1_LSP fields¶
pdulength	`_ISIS_PduLengthField`	`None`
lifetime	`ShortField`	`1199`
lspid	`ISIS_LspIdField`	`'0102.0304.0506.00-00'`
seqnum	`XIntField`	`1`
checksum	`XShortField`	`None`
typeblock	`FlagsField` (8 bits)	`<Flag 3 (L1+L2)>`
tlvs	`_ISIS_TlvListField`	`[]`

class scapy.contrib.isis.ISIS_L1_PSNP¶

Bases: scapy.contrib.isis._ISIS_PSNP_Base

aliastypes¶

answers(other)¶

fields_desc¶

ISIS_L1_PSNP fields¶
pdulength	`_ISIS_PduLengthField`	`None`
sourceid	`ISIS_NodeIdField`	`'0102.0304.0506.00'`
tlvs	`_ISIS_TlvListField`	`[]`

class scapy.contrib.isis.ISIS_L2_CSNP¶

Bases: scapy.contrib.isis._ISIS_CSNP_Base

aliastypes¶

answers(other)¶

fields_desc¶

ISIS_L2_CSNP fields¶
pdulength	`_ISIS_PduLengthField`	`None`
sourceid	`ISIS_NodeIdField`	`'0102.0304.0506.00'`
startlspid	`ISIS_LspIdField`	`'0000.0000.0000.00-00'`
endlspid	`ISIS_LspIdField`	`'FFFF.FFFF.FFFF.FF-FF'`
tlvs	`_ISIS_TlvListField`	`[]`

class scapy.contrib.isis.ISIS_L2_LAN_Hello¶

Bases: scapy.contrib.isis._ISIS_LAN_HelloBase

aliastypes¶

fields_desc¶

ISIS_L2_LAN_Hello fields¶
circuittype	`ISIS_CircuitTypeField` (8 bits)	`<Flag 2 (L2)>`
sourceid	`ISIS_SystemIdField`	`'0102.0304.0506'`
holdingtime	`ShortField`	`30`
pdulength	`_ISIS_PduLengthField`	`None`
priority	`ByteField`	`1`
lanid	`ISIS_NodeIdField`	`'0000.0000.0000.00'`
tlvs	`_ISIS_TlvListField`	`[]`

class scapy.contrib.isis.ISIS_L2_LSP¶

Bases: scapy.contrib.isis._ISIS_LSP_Base

aliastypes¶

answers(other)¶

fields_desc¶

ISIS_L2_LSP fields¶
pdulength	`_ISIS_PduLengthField`	`None`
lifetime	`ShortField`	`1199`
lspid	`ISIS_LspIdField`	`'0102.0304.0506.00-00'`
seqnum	`XIntField`	`1`
checksum	`XShortField`	`None`
typeblock	`FlagsField` (8 bits)	`<Flag 3 (L1+L2)>`
tlvs	`_ISIS_TlvListField`	`[]`

class scapy.contrib.isis.ISIS_L2_PSNP¶

Bases: scapy.contrib.isis._ISIS_PSNP_Base

aliastypes¶

answers(other)¶

fields_desc¶

ISIS_L2_PSNP fields¶
pdulength	`_ISIS_PduLengthField`	`None`
sourceid	`ISIS_NodeIdField`	`'0102.0304.0506.00'`
tlvs	`_ISIS_TlvListField`	`[]`

class scapy.contrib.isis.ISIS_LinkLocalRemoteIdentifiersSubTlv¶

Bases: scapy.contrib.isis.ISIS_GenericSubTlv

aliastypes¶

fields_desc¶

ISIS_LinkLocalRemoteIdentifiersSubTlv fields¶
type	`ByteEnumField`	`4`
len	`FieldLenField`	`8`
localid	`IntField`	`'0'`
remoteid	`IntField`	`'0'`

class scapy.contrib.isis.ISIS_LspEntry¶

Bases: scapy.packet.Packet

aliastypes¶

extract_padding(s)¶

fields_desc¶

ISIS_LspEntry fields¶
lifetime	`ShortField`	`1200`
lspid	`ISIS_LspIdField`	`'0102.0304.0506.07-08'`
seqnum	`XIntField`	`1`
checksum	`XShortField`	`None`

class scapy.contrib.isis.ISIS_LspEntryTlv¶

Bases: scapy.contrib.isis.ISIS_GenericTlv

aliastypes¶

fields_desc¶

ISIS_LspEntryTlv fields¶
type	`ByteEnumField`	`9`
len	`FieldLenField`	`None`
entries	`PacketListField`	`[]`

class scapy.contrib.isis.ISIS_LspIdField(name, default)¶

Bases: scapy.contrib.isis._ISIS_IdFieldBase

randval()¶

class scapy.contrib.isis.ISIS_MaximumLinkBandwidthSubTlv¶

Bases: scapy.contrib.isis.ISIS_GenericSubTlv

aliastypes¶

fields_desc¶

ISIS_MaximumLinkBandwidthSubTlv fields¶
type	`ByteEnumField`	`9`
len	`FieldLenField`	`None`
maxbw	`IEEEFloatField`	`1000`

class scapy.contrib.isis.ISIS_MaximumReservableLinkBandwidthSubTlv¶

Bases: scapy.contrib.isis.ISIS_GenericSubTlv

aliastypes¶

fields_desc¶

ISIS_MaximumReservableLinkBandwidthSubTlv fields¶
type	`ByteEnumField`	`10`
len	`FieldLenField`	`None`
maxrsvbw	`IEEEFloatField`	`1000`

class scapy.contrib.isis.ISIS_NodeIdField(name, default)¶

Bases: scapy.contrib.isis._ISIS_IdFieldBase

randval()¶

class scapy.contrib.isis.ISIS_P2PAdjacencyStateTlv¶

Bases: scapy.contrib.isis.ISIS_GenericTlv

aliastypes¶

fields_desc¶

ISIS_P2PAdjacencyStateTlv fields¶
type	`ByteEnumField`	`240`
len	`_AdjacencyStateTlvLenField`	`None`
state	`ByteEnumField`	`2`
extlocalcircuitid	`IntField` (Cond)	`None`
neighboursystemid	`ISIS_SystemIdField` (Cond)	`None`
neighbourextlocalcircuitid	`IntField` (Cond)	`None`

class scapy.contrib.isis.ISIS_P2P_Hello¶

Bases: scapy.contrib.isis._ISIS_PduBase

aliastypes¶

fields_desc¶

ISIS_P2P_Hello fields¶
circuittype	`ISIS_CircuitTypeField` (8 bits)	`<Flag 2 (L2)>`
sourceid	`ISIS_SystemIdField`	`'0102.0304.0506'`
holdingtime	`ShortField`	`30`
pdulength	`_ISIS_PduLengthField`	`None`
localcircuitid	`ByteField`	`0`
tlvs	`_ISIS_TlvListField`	`[]`

class scapy.contrib.isis.ISIS_PaddingTlv¶

Bases: scapy.contrib.isis.ISIS_GenericTlv

aliastypes¶

fields_desc¶

ISIS_PaddingTlv fields¶
type	`ByteEnumField`	`8`
len	`FieldLenField`	`None`
padding	`BoundStrLenField`	`b''`

class scapy.contrib.isis.ISIS_ProtocolsSupportedTlv¶

Bases: scapy.contrib.isis.ISIS_GenericTlv

aliastypes¶

fields_desc¶

ISIS_ProtocolsSupportedTlv fields¶
type	`ByteEnumField`	`129`
len	`FieldLenField`	`None`
nlpids	`FieldListField`	`[]`

class scapy.contrib.isis.ISIS_SystemIdField(name, default)¶

Bases: scapy.contrib.isis._ISIS_IdFieldBase

randval()¶

class scapy.contrib.isis.ISIS_TEDefaultMetricSubTlv¶

Bases: scapy.contrib.isis.ISIS_GenericSubTlv

aliastypes¶

fields_desc¶

ISIS_TEDefaultMetricSubTlv fields¶
type	`ByteEnumField`	`18`
len	`FieldLenField`	`None`
temetric	`ThreeBytesField`	`1000`

class scapy.contrib.isis.ISIS_TERouterIDTlv¶

Bases: scapy.contrib.isis.ISIS_GenericTlv

aliastypes¶

fields_desc¶

ISIS_TERouterIDTlv fields¶
type	`ByteEnumField`	`134`
len	`FieldLenField`	`None`
routerid	`IPField`	`'0.0.0.0'`

class scapy.contrib.isis.ISIS_UnreservedBandwidthSubTlv¶

Bases: scapy.contrib.isis.ISIS_GenericSubTlv

aliastypes¶

fields_desc¶

ISIS_UnreservedBandwidthSubTlv fields¶
type	`ByteEnumField`	`11`
len	`FieldLenField`	`None`
unrsvbw	`FieldListField`	`[1000, 1000, 1000, 1000, 1000, 1000, 1000, 1000]`

scapy.contrib.isis.isis_area2str(area)¶

scapy.contrib.isis.isis_lspid2str(lspid)¶

scapy.contrib.isis.isis_nodeid2str(nodeid)¶

scapy.contrib.isis.isis_str2area(s)¶

scapy.contrib.isis.isis_str2lspid(s)¶

scapy.contrib.isis.isis_str2nodeid(s)¶

scapy.contrib.isis.isis_str2sysid(s)¶

scapy.contrib.isis.isis_sysid2str(sysid)¶