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TN)__name__ __module__ __qualname____doc__use_2_bytes_asnr+r+H/var/www/html/gsl.tools/lib/python3.9/site-packages/scapy/contrib/bgp.pyr%'sr%iscCs |ddS)zl Helper function that returns the numbers of bytes necessary to store the given number of bits. r+)Zlength_in_bitsr+r+r,_bits_to_bytes_lenRsr3c@sXeZdZdZddZddZddZdd Zd d Zd d Z ddZ ddZ ddZ dS) BGPFieldIPv4z IPv4 Field (CIDR) cCs |ddSz(Get the IP field mask length (in bytes).r1r2r+selfmaskr+r+r, mask2iplen`szBGPFieldIPv4.mask2iplencCstd|\}}t||fS)z'x.x.x.x/y to "internal" representation./resplitintr7pkthipr8r+r+r,h2idszBGPFieldIPv4.h2icCs|\}}|dt|S)zH"Internal" representation to "human" representation (x.x.x.x/y).r:strr7r@ir8rBr+r+r,i2hiszBGPFieldIPv4.i2hcCs |||SNrHr7r@rGr+r+r,i2reproszBGPFieldIPv4.i2reprcCs|\}}||dSNr9)r7r@rGr8_r+r+r,i2lenrszBGPFieldIPv4.i2lencCs0|\}}t|}td||d||S)zJ"Internal" (IP as bytes, mask as int) to "machine" representation.>BN)socket inet_atonstructpackr9rFr+r+r,i2mvs zBGPFieldIPv4.i2mcCs||||SrIrWr7r@svalr+r+r,addfield}szBGPFieldIPv4.addfieldcCs6|t|dd}||d|||d|fSNrrNr9r"m2ir7r@rZlengthr+r+r,getfieldszBGPFieldIPv4.getfieldcsBtd}||dfddtdD}|t|fS)Nrc3s.|]&}|kr"|d|dndVqdSrNr/Nr+.0rGmZmask2iplen_resr+r, rcz#BGPFieldIPv4.m2i..)r"r9joinrangerS inet_ntoa)r7r@rir8rBr+rhr,r_s  zBGPFieldIPv4.m2iN r&r'r(r)r9rCrHrLrQrWr\rbr_r+r+r+r,r4[sr4c@sXeZdZdZddZddZddZdd Zd d Zd d Z ddZ ddZ ddZ dS) BGPFieldIPv6zIPv6 Field (CIDR)cCs |ddSr5r+r6r+r+r,r9szBGPFieldIPv6.mask2iplencCstd|\}}t||fS)z%x.x.x.x/y to internal representation.r:r;r?r+r+r,rCszBGPFieldIPv6.h2icCs|\}}|dt|S)z4"Internal" representation to "human" representation.r:rDrFr+r+r,rHszBGPFieldIPv6.i2hcCs |||SrIrJrKr+r+r,rLszBGPFieldIPv6.i2reprcCs|\}}||dSrMrOrFr+r+r,rQszBGPFieldIPv6.i2lencCs4|\}}ttj|}td||d||S)zB"Internal" (IP as bytes, mask as int) to "machine" representation.rRN)r inet_ptonrSAF_INET6rUrVr9rFr+r+r,rWszBGPFieldIPv6.i2mcCs||||SrIrXrYr+r+r,r\szBGPFieldIPv6.addfieldcCs6|t|dd}||d|||d|fSr]r^r`r+r+r,rbszBGPFieldIPv6.getfieldcs>tddfddtdD}ttj|fS)Nrrcc3s4|],}|kr(|d|dndVqdSrdrOrfrir8r7r+r,rjrcz#BGPFieldIPv6.m2i..r.)r"rlrmr inet_ntoprSrr)r7r@rirBr+rsr,r_s  zBGPFieldIPv6.m2iNror+r+r+r,rpsrpcCs |t@tkS)zN Used in BGPPathAttr to check if the extended-length flag is set. )_BGP_PA_EXTENDED_LENGTH)flagsr+r+r,has_extended_lengthsrwcCs"d}|dt|kr|d7}t||}||kr4dS|dd}|d|7}|t|kr\dS|drt||dd|d?@rdSqd}|dt|krt||}|dkrt|dkrdS||krdS|dd}|d|7}|t|krdS|drt||dd|d?@rdSqdS) a@ Detect IPv4/IPv6 prefixes conform to BGP Additional Path but NOT conform to standard BGP.. This is an adapted version of wireshark's detect_add_path_prefix46 https://github.com/wireshark/wireshark/blob/ed9e958a2ed506220fdab320738f1f96a3c2ffbb/epan/dissectors/packet-bgp.c#L2905 Kudos to them ! rrkFr1r2rNT)lenr")rZmax_bit_lengthrG prefix_lenZaddr_lenr+r+r,detect_add_path_prefix46s8         r|c@s(eZdZdZdZeddgZddZdS) BGPNLRI_IPv4z+ Packet handling IPv4 NLRI fields. z IPv4 NLRIprefix 0.0.0.0/0cCstjSrIr Z padding_layerr7payloadr+r+r,default_payload_classsz"BGPNLRI_IPv4.default_payload_classN)r&r'r(r)namer4 fields_descrr+r+r+r,r}s r}c@s(eZdZdZdZeddgZddZdS) BGPNLRI_IPv6z+ Packet handling IPv6 NLRI fields. z IPv6 NLRIr~::/0cCstjSrIrrr+r+r,rsz"BGPNLRI_IPv6.default_payload_classN)r&r'r(r)rrprrr+r+r+r,rs rc@s(eZdZdZdZeddeddgZdS)BGPNLRI_IPv4_APzC Packet handling IPv4 NLRI fields WITH BGP ADDITIONAL PATH zIPv4 NLRI (Additional Path) nlri_path_idrr~rN)r&r'r(r)rrr4rr+r+r+r,rs rc@s(eZdZdZdZeddeddgZdS)BGPNLRI_IPv6_APzC Packet handling IPv6 NLRI fields WITH BGP ADDITIONAL PATH zIPv6 NLRI (Additional Path)rrr~rN)r&r'r(r)rrrprr+r+r+r,rs rcs4eZdZdZgdZfddZfddZZS)BGPNLRIPacketListFieldz/ PacketListField handling NLRI fields. )rz cls_group no_lengthc sPtt|j||tfi|dttgfdttgfd|\|_|_ d|v|_ dS)N )IPv4IPv6 length_from) superr__init__rr}rrrrzrr)r7rdefaultZip_modekwargs __class__r+r,rs    zBGPNLRIPacketListField.__init__cs|jr6|tdkr |gfSdkr6fdd|_|jrN|d||n|}|jt||jfdd|_tt | ||}|jrd|_|S)NrcsSrIr+)r@)indexr+r,(rcz1BGPNLRIPacketListField.getfield..csSrIr+)args)clsr+r,r.rc) rfind_BGP_HEADER_MARKERrrr|rzZ next_cls_cbrrrb)r7r@rZremainresr)rrr,rb"s  zBGPNLRIPacketListField.getfield)r&r'r(r) __slots__rrb __classcell__r+r+rr,rs rc@seZdZdZddZdS)_BGPInvalidDataExceptionz] Raised when it is not possible to instantiate a BGP packet with the given data. cCst|d|dS)Nz.Impossible to build packet from the given data) Exceptionr)r7detailsr+r+r,r;sz!_BGPInvalidDataException.__init__N)r&r'r(r)rr+r+r+r,r5srcCst||S)zJ Returns class named "name" if it exists, fallback_cls otherwise. )globalsget)rZ fallback_clsr+r+r,_get_clsBsrNONEOPENUPDATE NOTIFICATION KEEPALIVE ROUTE-REFRESH)rrNr/r0rkReservedzIP (IP version 4)zIP6 (IP version 6)ZNSAPzHDLC (8-bit multidrop)zBBN 1822z=802 (includes all 802 media plus Ethernet "canonical format")zE.163zE.164 (SMDS, Frame Relay, ATM)z F.69 (Telex)zX.121 (X.25, Frame Relay)ZIPXZ Appletalkz Decnet IVz Banyan Vinesz!E.164 with NSAP format subaddresszDNS (Domain Name System)zDistinguished Namez AS NumberzXTP over IP version 4zXTP over IP version 6zXTP native mode XTPz"Fibre Channel World-Wide Port Namez"Fibre Channel World-Wide Node NameZGWIDzAFI for L2VPN informationz#MPLS-TP Section Endpoint IdentifierzMPLS-TP LSP Endpoint Identifierz&MPLS-TP Pseudowire Endpoint Identifierz"MT IP: Multi-Topology IP version 4z$MT IPv6: Multi-Topology IP version 6zEIGRP Common Service FamilyzEIGRP IPv4 Service FamilyzEIGRP IPv6 Service Familyz$LISP Canonical Address Format (LCAF)zBGP-LSz 48-bit MACz 64-bit MACZOUIzMAC/24zMAC/40zIPv6/64zRBridge Port IDzTRILL Nickname)-rrNr/r0rkrr1r2 r.r-i@i@i@i@i@i@i@i@i@i @i @i @i @izBNetwork Layer Reachability Information used for unicast forwardingzDNetwork Layer Reachability Information used for multicast forwardingz>Network Layer Reachability Information (NLRI) with MPLS Labelsz MCAST-VPNzeNetwork Layer Reachability Information used for Dynamic Placement of Multi-Segment PseudowireszEncapsulation SAFIz MCAST-VPLSz Tunnel SAFIz"Virtual Private LAN Service (VPLS)z BGP MDT SAFIzBGP 4over6 SAFIzBGP 6over4 SAFIz&Layer-1 VPN auto-discovery informationz BGP EVPNsz BGP-LS-VPNzMPLS-labeled VPN addressz9Multicast for BGP/MPLS IP Virtual Private Networks (VPNs)zRoute Target constraintz.IPv4 dissemination of flow specification rulesz/VPNv4 dissemination of flow specification ruleszVPN auto-discovery)rrNr/r0rkrrr1r2@ABCDEFGHrrxBGPOpen BGPUpdateBGPNotification BGPKeepAliveBGPRouteRefresh)rNr/r0rkrc@sReZdZdZdZedddeddedd egZ e dd d Z d d Z ddZ dS) BGPHeaderzA The header of any BGP message. References: RFC 4271 HEADERmarkerl rryNtyperkcOst|Sz= Returns the right class for the given data. _bgp_dispatcherrZ_pktrZkargsr+r+r, dispatch_hookszBGPHeader.dispatch_hookcCsN|jdurFt|}|r"|t|}|ddtd||dd}||S)Nr.!Hr)ryrUrVr7ppayrar+r+r, post_builds   $zBGPHeader.post_buildcCstt|jtjtjSrI)r_bgp_cls_by_typerrr raw_layerrr+r+r,guess_payload_classszBGPHeader.guess_payload_class)N)r&r'r(r)rr r r _bgp_message_typesr classmethodrrrr+r+r+r,rs   rcCsbtj}|durtdtj}nBt|tkr^|ddtkr^t|d}|dkrVtd}ntd}|S)z: Returns the right class for a given BGP message. Nrr.rrkr)r rrry_BGP_HEADER_SIZErr")rrZ message_typer+r+r,rs   rc@s:eZdZdZdZdZdZdZdZe d dd Z d d Z dS) BGPz5 Every BGP message inherits from this class. rNr/r0rkrNcOst|Srrrr+r+r,rszBGP.dispatch_hookcCs(d}t|dkr$|ddtkr$t}|S)Nrr.)ryrr)r7rrr+r+r,r szBGP.guess_payload_class)N) r&r'r(r)Z OPEN_TYPEZ UPDATE_TYPEZNOTIFICATION_TYPEZKEEPALIVE_TYPEZROUTEREFRESH_TYPErrrr+r+r+r,rs rc@seZdZdZdZdS)rz KEEPALIVE message. rNr&r'r(r)rr+r+r+r,rszAuthentication (deprecated)Z CapabilitiesrrNr/"Multiprotocol Extensions for BGP-4z"Route Refresh Capability for BGP-4#Outbound Route Filtering Capabilityz+Multiple routes to a destination capabilityzExtended Next Hop EncodingzBGP-Extended MessageGraceful Restart Capability(Support for 4-octet AS number capabilityzDeprecated (2003-03-06)z4Support for Dynamic Capability (capability specific)zMultisession BGP CapabilityzADD-PATH Capabilityz!Enhanced Route Refresh Capabilityz-Long-Lived Graceful Restart (LLGR) CapabilityzFQDN Capabilityz*Route Refresh Capability for BGP-4 (Cisco)z+Outbound Route Filtering Capability (Cisco))rrNr/r0rkrrrrrrrrrrIrBGPCapMultiprotocol BGPCapGeneric BGPCapORFBGPCapGracefulRestartBGPCapFourBytesASN)rNr/r0rrrrcCs|||j<|SrI)r&)registryrr+r+r, _register_clsVs rcCsJtd}|durtd}n,t|}|tkrFt|d}tt|d}|S)z= Returns the right class for a given BGP capability. rNr)_capabilities_registryry_BGP_CAPABILITY_MIN_SIZEr"r_capabilities_objectsr)rrracoder+r+r,_bgp_capability_dispatcher^s  rcseZdZfddZZS)_BGPCap_metaclasscs$tt|||||}tt||SrI)rr__new__rr)rclsnamebasesattrsZnewclassrr+r,rss   z_BGPCap_metaclass.__new__)r&r'r(rrr+r+rr,rrsrc@s eZdZdS)_BGPCapability_metaclassN)r&r'r(r+r+r+r,rzsrc@s.eZdZdZed ddZddZddZdS) BGPCapabilityz! Generic BGP capability. NcOst|Sr)rrr+r+r,rszBGPCapability.dispatch_hookcCs8t|}|tkr4d|d}|dt7}t||S)zK Check that the payload is long enough (at least 2 bytes). z ({}z is < _BGP_CAPABILITY_MIN_SIZE z({})).)ryrformatr)r7rZraerrr+r+r, pre_dissects zBGPCapability.pre_dissectcCsBd}|jdur:t|d}|ddt||dd}||SNrr/rN)raryr#rr+r+r,rs    zBGPCapability.post_build)N)r&r'r(r)rrr rr+r+r+r,r ~s   r c@sFeZdZdZdZdZeddeedddd d e d d d d ddgZ dS)rzH This class provides an implementation of a generic capability. zBGP CapabilityTrrraNBZcap_data)fmt length_ofcCs|jSrIrarr+r+r,rrczBGPCapGeneric.rx)r max_length) r&r'r(r)rmatch_subclassr _capabilitiesrrrr+r+r+r,rs c@sJeZdZdZdZdZeddeedde dd e ed d ed d e gZ d S) rzm This class provides an implementation of the Multiprotocol capability. References: RFC 4760 rTrrNrarkafirreservedsafiN) r&r'r(r)rrr rr raddress_family_identifierssubsequent_afisrr+r+r+r,rs   Address Prefix ORFCP-ORF)rrrZreceivesendzreceive + send)rNr/r0c @sleZdZdZGdddeZdZeddee dde dde e d d d d d e d gedddgZddZd S)BGPCapORFBlockzo The "ORFBlock" is made of entries. c@s,eZdZdZdZeddeeddegZdS)zBGPCapORFBlock.ORFTuplezC Packet handling tuples. zORF Typeorf_typerZ send_receiveN) r&r'r(r)rr _orf_typessend_receive_valuesrr+r+r+r,ORFTuples   r#zORF Capability Entryrrrr orf_numberNentries!B)Zcount_ofrcCs|jSrI)r$rr+r+r,rrczBGPCapORFBlock.)Z count_fromcCsDd}|jdurr) r&r'r(r)rrr rr r(rrr+r+r+r,r s rz,Forwarding state preserved (0x80: F bit set)c@s\eZdZdZGdddeZdZdZedde e dd e d d d e d d de dgegZ d S)rzp This class provides an implementation of the Graceful Restart capability. References: RFC 4724 c@s6eZdZdZdZeddeeddeedde gZ dS)zBGPCapGracefulRestart.GRTuplez+Tuple z%rrrrvN) r&r'r(r)rrrr rgr_address_family_flagsrr+r+r+r,GRTupleEs    r1rTrrraNZ restart_flagsrrkZ restart_timerr%)r&r'r(r)rr1rrr rr rrrr+r+r+r,r>s    c@s6eZdZdZdZdZeddeedde dd gZ d S) rzq This class provides an implementation of the 4-octet AS number capability. References: RFC 4893 rTrrrarkasnrN) r&r'r(r)rrr rr rrr+r+r+r,rZs c@s(eZdZdZdZeddeddgZdS)BGPAuthenticationInformationz Provides an implementation of the Authentication Information optional parameter, which is now obsolete. References: RFC 1771, RFC 1654, RFC 4271 zBGP Authentication DataZauthentication_coderauthentication_dataN)r&r'r(r)rr rrr+r+r+r,r3ls r3c@seZdZdZddZdS)BGPOptParamPacketListFieldzJ PacketListField handling the optional parameters (OPEN message). c Csg}d}|jdur||}|}|durB|d|||d}}|rt|d}|dd|}|d|d}|||} || qB|||fS)NrrNr/r)) r7r@rZr+rarretZ param_lenr,r-r+r+r,rbs     z#BGPOptParamPacketListField.getfieldNr.r+r+r+r,r5~sr5c@sZeZdZdZdZeddeeddee dde dd ee d de d d gZ d d Z dS) BGPOptParamzc Provides an implementation the OPEN message optional parameters. References: RFC 4271 zOptional parameter param_typer/ param_lengthN param_valuecCs |jdkSNr/r8rr+r+r,rrczBGPOptParam.r4cCs |jdkSrMr<rr+r+r,rrccCsd}|}|jdur|jdur,|jdur,d}n t|d}|ddt|}|jdkr`|jdust|jdkr|jdur||dd}||Sr )r9r:r4ryr#r8)r7rrrar-r+r+r,rs  zBGPOptParam.post_build)r&r'r(r)rr optional_parameter_codesr rrr r3rrr+r+r+r,r7s,  r7c @s`eZdZdZdZeddeddeddedd ed d d d de d ge dddgZ ddZ d S)rzb OPEN messages are exchanged in order to open a new BGP session. References: RFC 4271 rversionrkZmy_asrZ hold_timeZbgp_id0.0.0.0 opt_param_lenNZ opt_paramsr&rrcCs|jSrI)r@rr+r+r,rrczBGPOpen.r/cCsB|jdur:t|d}|ddtd||dd}||S)Nrrr&)r@ryrUrVrr+r+r,rs  $zBGPOpen.post_build) r&r'r(r)rr r rrr5r7rrr+r+r+r,rs(ORIGINZAS_PATHNEXT_HOPMULTI_EXIT_DISC LOCAL_PREFATOMIC_AGGREGATE AGGREGATORZ COMMUNITY ORIGINATOR_ID CLUSTER_LISTzDPA (deprecated)z#ADVERTISER (Historic) (deprecated)z.RCID_PATH / CLUSTER_ID (Historic) (deprecated) MP_REACH_NLRIMP_UNREACH_NLRIzEXTENDED COMMUNITIESAS4_PATHZAS4_AGGREGATORz*SAFI Specific Attribute (SSA) (deprecated)z Connector Attribute (deprecated)zAS_PATHLIMIT (deprecated)Z PMSI_TUNNELzTunnel Encapsulation AttributezTraffic Engineering(IPv6 Address Specific Extended CommunityZAIGPzPE Distinguisher Labelsz3BGP Entropy Label Capability Attribute (deprecated)zBGP-LS AttributezBGP Prefix-SIDZATTR_SETzReserved for development)!rrNr/r0rkrrr1r2rrrrrrrr.rrr-rrrrrrrrrr(rrxr)rNr/r0rkrrr1r2rrrrrrrr.rrr-rrrrrrrrrrrNrc@seZdZdZddZdS)BGPPathAttrPacketListFieldzH PacketListField handling the path attributes (UPDATE message). c Csg}d}|jdur||}d}|}|durF|d|||d}}|rt|d}d}t|rtd|ddd}|dd|} |d|d}n,t|d}|dd|} |d|d}||| } || qF|||fS)Nrrrr/rkr0)rr"rwrUunpackr_r*) r7r@rZr+rar6rrvattr_lenr,r-r+r+r,rbFs*      z#BGPPathAttrPacketListField.getfieldNr.r+r+r+r,rPAsrPc@s*eZdZdZdZeddddddgZd S) BGPPAOriginzN Packet handling the ORIGIN attribute value. References: RFC 4271 rBoriginrZIGPZEGPZ INCOMPLETErN)r&r'r(r)rr rr+r+r+r,rSjsrSAS_SET AS_SEQUENCEZAS_CONFED_SEQUENCEZ AS_CONFED_SET)rNr/r0rkc@seZdZdZddZdS)ASPathSegmentPacketListFieldz4 PacketListField handling AS_PATH segments. cCsg}|}|rt|d}tjrH|dd|d}|d|dd}n(|dd|d}|d|dd}|||}||q||fS)NrNr/rk)r"bgp_module_confr*r_r*)r7r@rZr+rsegment_lengthr,r-r+r+r,rbs   z%ASPathSegmentPacketListField.getfieldNr.r+r+r+r,rWsrWc@s6eZdZdZdZGdddeZdZedgegZ dS) BGPPAASPathz~ Packet handling the AS_PATH attribute value (2 bytes ASNs, for old speakers). References: RFC 4271, RFC 5065 i[c@s>eZdZdZeddeeddedgeddgZ d d Z dS) zBGPPAASPath.ASPathSegmentzT Provides an implementation for AS_PATH segments with 2 bytes ASNs. segment_typer/rYN segment_valuer2rcCs@|j}|dur8t|j}|ddt||dd}||SNrNr/rYryr\r#r7rrZ segment_lenr+r+r,rs   z$BGPPAASPath.ASPathSegment.post_build) r&r'r(r)r as_path_segment_typesr rr rrr+r+r+r, ASPathSegments  razAS_PATH (RFC 4271)segmentsN) r&r'r(r)ZAS_TRANSrrarrWrr+r+r+r,rZs  rZc@s2eZdZdZGdddeZdZedgegZdS)BGPPAAS4BytesPathz Packet handling the AS_PATH attribute value (4 bytes ASNs, for new speakers -> ASNs are encoded as IntFields). References: RFC 4893 c@s>eZdZdZeddeeddedgeddgZ d d Z dS) zBGPPAAS4BytesPath.ASPathSegmentzT Provides an implementation for AS_PATH segments with 4 bytes ASNs. r[r/rYNr\r2rcCs@|j}|dur8t|j}|ddt||dd}||Sr]r^r_r+r+r,rs   z*BGPPAAS4BytesPath.ASPathSegment.post_build) r&r'r(r)r r`r rrrrr+r+r+r,ras  razAS_PATH (RFC 4893)rbN) r&r'r(r)rrarrWrr+r+r+r,rcs  rcc@s eZdZdZdZeddgZdS) BGPPANextHopzP Packet handling the NEXT_HOP attribute value. References: RFC 4271 rCZnext_hopr?Nr&r'r(r)rrrr+r+r+r,rdsrdc@s eZdZdZdZeddgZdS)BGPPAMultiExitDisczW Packet handling the MULTI_EXIT_DISC attribute value. References: RFC 4271 rDZmedrNr&r'r(r)rrrr+r+r+r,rfsrfc@s eZdZdZdZeddgZdS)BGPPALocalPrefzR Packet handling the LOCAL_PREF attribute value. References: RFC 4271 rEZ local_prefrNrgr+r+r+r,rhsrhc@seZdZdZdZdS)BGPPAAtomicAggregatezX Packet handling the ATOMIC_AGGREGATE attribute value. References: RFC 4271 rFNrr+r+r+r,ri sric@s(eZdZdZdZeddeddgZdS)BGPPAAggregatorzR Packet handling the AGGREGATOR attribute value. References: RFC 4271 rGaggregator_asnrspeaker_addressr?N)r&r'r(r)rr rrr+r+r+r,rjs rjZ NO_EXPORTZ NO_ADVERTISEZNO_EXPORT_SUBCONFEDZNOPEERz planned-shutz ACCEPT-OWNZROUTE_FILTER_TRANSLATED_v4ZROUTE_FILTER_v4ZROUTE_FILTER_TRANSLATED_v6ZROUTE_FILTER_v6Z LLGR_STALEZNO_LLGRzaccept-own-nexthop) lllllllllllllc@s"eZdZdZdZeddegZdS)BGPPACommunityzS Packet handling the COMMUNITIES attribute value. References: RFC 1997 Z COMMUNITIESZ communityrN)r&r'r(r)rrwell_known_communitiesrr+r+r+r,rm:srmc@s eZdZdZdZeddgZdS)BGPPAOriginatorIDzU Packet handling the ORIGINATOR_ID attribute value. References: RFC 4456 rHZ originator_idr?Nrer+r+r+r,roHsroc@s(eZdZdZdZedgeddgZdS)BGPPAClusterListzT Packet handling the CLUSTER_LIST attribute value. References: RFC 4456 rIZ cluster_listZ cluster_idrN)r&r'r(r)rrrrr+r+r+r,rpVsrpz3Transitive Two-Octet AS-Specific Extended Communityz3Transitive IPv4-Address-Specific Extended Communityz4Transitive Four-Octet AS-Specific Extended Communityz$Transitive Opaque Extended Communityz QoS MarkingzCoS CapabilityZEVPNZ Unassignedz(Flow spec redirect/mirror to IP next-hopz7Non-Transitive Two-Octet AS-Specific Extended Communityz7Non-Transitive IPv4-Address-Specific Extended Communityz8Non-Transitive Four-Octet AS-Specific Extended Communityz(Non-Transitive Opaque Extended Communityz6Generic Transitive Experimental Use Extended Communityz=Generic Transitive Experimental Use Extended Community Part 2z=Generic Transitive Experimental Use Extended Community Part 3)rrNr/r0rkrrr1r2rrrrrrrrz MAC Mobilityz ESI LabelzES-Import Route Targetz$EVPN Router"s MAC Extended CommunityzLayer 2 Extended CommunityzE-TREE Extended CommunityzDF Election Extended CommunityzI-SID Extended Community)rrNr/r0rkrrr1z Route Targetz Route OriginzOSPF Domain IdentifierzBGP Data Collectionz Source ASzL2VPN IdentifierzCisco VPN-Distinguisher)r/r0rkrr2rrr.z!Link Bandwidth Extended Communityz-Virtual-Network Identifier Extended Community)rkrGenericzCisco VPN Identifier)r/r0rkrr2rr.rkz OSPF Route IDzVRF Route ImportzFlow-spec Redirect to IPv4z"Inter-Area P2MP Segmented Next-Hop) r/r0rr1rrrr.rzCost Communityz"Extranet Source Extended Communityz&Extranet Separation Extended CommunityzOSPF Route Typez&Additional PMSI Tunnel Attribute FlagszColor Extended Communityz Encapsulation Extended CommunityzDefault Gatewayz)Point-to-Point-to-Multipoint (PPMP) LabelzRoute-Target RecordzConsistent Hash Sort Order) rNr0rkrrr1rrrrr-rzBGP Origin Validation State)rrNzOSPF Route Type (deprecated)zOSPF Router ID (deprecated)z#OSPF Domain Identifier (deprecated)zFlow spec traffic-ratezFlow spec traffic-actionz"Flow spec redirect AS-2byte formatzFlow spec traffic-remarkingzLayer2 Info Extended Communityz E-Tree Info) rrNrrr1r2rrrr2zFlow spec redirect IPv4 formatz"Flow spec redirect AS-4byte formatzTerminal ActionZSample)/.z$OSPFv3 Route Attributes (DEPRECATED)zFlow-spec Redirect to IPv6zUUID-based Route Target)r/r0rkrrr.rr) rrNr/r0rrrrrrrrc@s(eZdZdZdZeddeddgZdS)BGPPAExtCommTwoOctetASSpecificzt Packet handling the Two-Octet AS Specific Extended Community attribute value. References: RFC 4360 z(Two-Octet AS Specific Extended Communityglobal_administratorrlocal_administratorNr&r'r(r)rr rrr+r+r+r,rtsrtc@s(eZdZdZdZeddeddgZdS)BGPPAExtCommFourOctetASSpecificzu Packet handling the Four-Octet AS Specific Extended Community attribute value. References: RFC 5668 z)Four-Octet AS Specific Extended CommunityrurrvNr&r'r(r)rrr rr+r+r+r,rx!srxc@s(eZdZdZdZeddeddgZdS)BGPPAExtCommIPv4AddressSpecificzt Packet handling the IPv4 Address Specific Extended Community attribute value. References: RFC 4360 z(IPv4 Address Specific Extended CommunityrurrvNryr+r+r+r,rz-srzc@s$eZdZdZdZeddddgZdS)BGPPAExtCommOpaqueza Packet handling the Opaque Extended Community attribute value. References: RFC 4360 zOpaque Extended CommunityvaluerrrN)r&r'r(r)rrrr+r+r+r,r{9sr{c@s(eZdZdZdZeddeddgZdS)BGPPAExtCommTrafficRatezd Packet handling the (FlowSpec) "traffic-rate" extended community. References: RFC 5575 z(FlowSpec traffic-rate extended communityidrZrateN)r&r'r(r)rr rrr+r+r+r,r}Gs r}c@s6eZdZdZdZedddedddedddgZd S) BGPPAExtCommTrafficActionzf Packet handling the (FlowSpec) "traffic-action" extended community. References: RFC 5575 z*FlowSpec traffic-action extended communityrrrssamplerNZterminal_actionN)r&r'r(r)rrrr+r+r+r,rTs    rc@s(eZdZdZdZeddeddgZdS)BGPPAExtCommRedirectAS2Bytezx Packet handling the (FlowSpec) "redirect AS-2byte" extended community (RFC 7674). References: RFC 7674 z-FlowSpec redirect AS-2byte extended communityr2rr|Nrwr+r+r+r,rbs rc@s(eZdZdZdZeddeddgZdS)BGPPAExtCommRedirectIPv4zu Packet handling the (FlowSpec) "redirect IPv4" extended community. (RFC 7674). References: RFC 7674 z)FlowSpec redirect IPv4 extended communityip_addrrr|Nryr+r+r+r,rps rc@s(eZdZdZdZeddeddgZdS)BGPPAExtCommRedirectAS4Bytezy Packet handling the (FlowSpec) "redirect AS-4byte" extended community. (RFC 7674). References: RFC 7674 z-FlowSpec redirect AS-4byte extended communityr2rr|Nryr+r+r+r,r~s rc@s$eZdZdZdZedddegZdS)BGPPAExtCommTrafficMarkingzg Packet handling the (FlowSpec) "traffic-marking" extended community. References: RFC 5575 z+FlowSpec traffic-marking extended communityZdscp0N)r&r'r(r)rr _ext_comm_traffic_action_fieldsrr+r+r+r,rs rrr)rNr)r/r)r0r)rr)rr1)rr2)rr)rr2)rr2c@s(eZdZdZdgZd ddZddZdS) _ExtCommValuePacketFieldzB PacketField handling Extended Communities "value parts". type_fromrcCst||||||_dSrI)rrr)r7rrrrr+r+r,rsz!_ExtCommValuePacketField.__init__cCs d}||\}}|dks"|dkr,t|}n|dks<|dkrFt|}n|dksV|dkr`t|}n|dksp|dkrzt|}n|d kr|d krt|}n4|d krt|}n"|d krt|}n|d krt|}n>|dkr|d krt |}n$|dkr|d krt |}n t |}|S)NrrrNrr/rr0rrrr1r2rrr) rrtrzrxr{r}rrrrrr r)r7r@rir6 type_hightype_lowr+r+r,r_s6           z_ExtCommValuePacketField.m2iN)r)r&r'r(r)rrr_r+r+r+r,rs rc@s(eZdZdZdZeddeddgZdS)BGPPAIPv6AddressSpecificExtCommz Provides an implementation of the IPv6 Address Specific Extended Community attribute. This attribute is not defined using the existing BGP Extended Community attribute (see the RFC 5701 excerpt below). References: RFC 5701 rMru::rvrN)r&r'r(r)rrr rr+r+r+r,rsrcCs t|iS)z Returns a ByteEnumField with the right sub-types dict for a given community. # noqa: E501 http://www.iana.org/assignments/bgp-extended-communities/bgp-extended-communities.xhtml )_ext_comm_subtypes_classesr)rr+r+r,_get_ext_comm_subtypesrc@s(eZdZdZdgZdddZddZdS) _TypeLowFieldzG Field used to retrieve "dynamically" the right sub-type dict. enum_fromNcCstj|||d||_dS)Nrr)r rr)r7rrrr+r+r,rsz_TypeLowField.__init__cCs||}|||SrI)rr)r7r@rGenumr+r+r,rLs z_TypeLowField.i2repr)N)r&r'r(r)rrrLr+r+r+r,rs rc@sLeZdZdZdZeddeeddddd ed de d dd gZ d dZ dS)BGPPAExtCommunityzd Provides an implementation of the Extended Communities attribute. References: RFC 4360 ZEXTENDED_COMMUNITYrrrNcCs t|jSrI)rrxr+r+r,rrczBGPPAExtCommunity.)rr|cCs |j|jfSrI)rrrr+r+r,rrc)rcCsb|jdur|dd}|jdurZ|jdurZt|jjd\}}t|t||dd}||S)Nr/r)r|r_ext_high_low_dictrrr#)r7rrhighlowr+r+r,rs   zBGPPAExtCommunity.post_build) r&r'r(r)rr _ext_comm_typesrrrrrr+r+r+r,rs  rc@seZdZdZddZdS)_ExtCommsPacketListFieldzB PacketListField handling a list of extended communities. cCsTg}t|}|d|}|rL|dd}|dd}|||}||q||fS)Nr2)ryr_r*)r7r@rZr+rarr,r-r+r+r,rb*s     z!_ExtCommsPacketListField.getfieldNr.r+r+r+r,r%src@s"eZdZdZdZedgegZdS) BGPPAExtCommsz< Packet handling the multiple extended communities. ZEXTENDED_COMMUNITIESZextended_communitiesN)r&r'r(r)rrrrr+r+r+r,r8src@seZdZdZddZdS)MPReachNLRIPacketListFieldz PacketListField handling the AFI specific part (except for the length of Next Hop Network Address field, which is not AFI specific) of the MP_REACH_NLRI attribute. c Csxg}|}|jdkrp|jdkrp|rpt|d}|dd}|d|d}||dd}|||}||q||fS)Nr/rNrr1r2)rrr"r_r*) r7r@rZr+rr8Zlength_in_bytesr,r~r+r+r,rbNs      z#MPReachNLRIPacketListField.getfieldNr.r+r+r+r,rGsrc @seZdZdZdZeddeeddee dde e ddd d e e d d d d e e dd dd e e dd dd e dde dgeg ZddZdS)BGPPAMPReachNLRIzk Packet handling the MP_REACH_NLRI attribute value, for non IPv6 AFI. References: RFC 4760 rJrrr nh_addr_lenZ nh_v4_addrr?cCs|jdko|jdkS)NrNrkrrrr+r+r,rnrczBGPPAMPReachNLRI.Z nh_v6_addrrcCs|jdko|jdkS)Nr/r.rrr+r+r,rprcZ nh_v6_globalcCs|jdko|jdkSNr/rrrr+r+r,rrrcZnh_v6_link_localcCs|jdko|jdkSrrrr+r+r,rtrcrnlricCs|jdur|dd}||SNr0)rr7rrr+r+r,rxs  zBGPPAMPReachNLRI.post_buildN)r&r'r(r)rrrr rr rrrrrrrr+r+r+r,ras*       rc@s"eZdZdZdZedgdgZdS)BGPPAMPUnreachNLRI_IPv6zL Packet handling the MP_UNREACH_NLRI attribute value, for IPv6 AFI. zMP_UNREACH_NLRI (IPv6 NLRI)withdrawn_routesrN)r&r'r(r)rrrr+r+r+r,rsrc@seZdZdZddZdS)MPUnreachNLRIPacketFieldzZ PacketField handling the AFI specific part of the MP_UNREACH_NLRI attribute. cCs&d}|jdkrt|}n t|}|Sr;)rrr rr7r@rir6r+r+r,r_s    zMPUnreachNLRIPacketField.m2iNr&r'r(r)r_r+r+r+r,rsrc@s>eZdZdZdZeddeeddee dde gZ dd Z dS) BGPPAMPUnreachNLRIzm Packet handling the MP_UNREACH_NLRI attribute value, for non IPv6 AFI. References: RFC 4760 rKrrrafi_safi_specificNcCs|jdur|dd}||Sr)rrr+r+r,rs  zBGPPAMPUnreachNLRI.post_build) r&r'r(r)rrrr rrrrrr+r+r+r,rs   rc@sHeZdZdZdZedddddedd ed ged d gZ d dZ d S) BGPPAAS4Pathze Provides an implementation of the AS4_PATH attribute "value part". References: RFC 4893 rLr[r/rUrVrNr/rYNr\r2rcCs<|jdur4t|j}|ddt||dd}||Sr]r^r_r+r+r,rs   zBGPPAAS4Path.post_build) r&r'r(r)rr r rrrrr+r+r+r,rs rc@s(eZdZdZdZeddeddgZdS)BGPPAAS4Aggregatorzo Provides an implementation of the AS4_AGGREGATOR attribute "value part". References: RFC 4893 zAS4_AGGREGATOR rkrrlr?N)r&r'r(r)rrrrr+r+r+r,rs r)rNr/r0rkrrr1r2rrrrr.rrc@seZdZdZddZdS)_PathAttrPacketFieldz: PacketField handling path attribute value parts. cCsd}|j}|dks|dkr&t|}nj|dkr6|dksV|dkrF|dksV|dkrb|dkrbt|}n.|d krztjszt|}ntt|tj|}|S) Nrrxr')rr/) type_coder rrXr*rcr_path_attr_objectsr)r7r@rir6rr+r+r,r_s,    z_PathAttrPacketField.m2iNrr+r+r+r,rsrc@sheZdZdZdZedddgdeddeee dd d d ee d d d d e dd e gZ ddZd S) BGPPathAttrzU Provides an implementation of the path attributes. References: RFC 4271 type_flagsrr2)ZNA0ZNA1ZNA2ZNA3zExtended-LengthZPartialZ TransitiveOptionalrrZ attr_ext_lenNcCs|jduot|jSrIrrwrr+r+r,r!s zBGPPathAttr.rRcCs|jduot|j SrIrrr+r+r,r&s  attributecCsFd}d}d}d}|jdur@|jtvr2t|j}nd}t|}n t|j}|dur`|dd}ntd||d}|jdur|jdurd}n|rt |d}n t |d}|dur|r||dd}q||d}n&|r|td |}n|td|}|r"|jdur>||dd}n|jdur>||dd}||S) NFrr/r&rNrrkr0r) rrattributes_flagsrrwrUrVrRrry)r7rrZ flags_valuerar-Zextended_lengthr+r+r,r,s@         zBGPPathAttr.post_build)r&r'r(r)rrr path_attributesrr r rrrrr+r+r+r,r s  rc @sjeZdZdZdZedddddedgdd d d ed dd dded gedd d edgdgZ ddZ dS)rzR UPDATE messages allow peers to exchange routes. References: RFC 4271 rwithdrawn_routes_lenNrrrArcCs|jSrI)rrr+r+r,r|rczBGPUpdate.r/ path_attr_len path_attrcCs|jSrI)rrr+r+r,rrcrcCsdd}d}|jdurLtt||j}|ddtd||dd}n|j}|jdurtt||j}|dd|td||d|d}||S)NcSst|SrI)ryrr+r+r,rrcz&BGPUpdate.post_build..rrrr/rk)rsummaprrUrVrr)r7rrZ subpacklenr-Zwlrar+r+r,rs & ,zBGPUpdate.post_build) r&r'r(r)rrrrPrrrr+r+r+r,rjs: zMessage Header ErrorzOPEN Message ErrorzUPDATE Message ErrorzHold Timer ExpiredzFinite State Machine ErrorZCeasezROUTE-REFRESH Message Error)rNr/r0rkrrr1Z UnspecificzConnection Not SynchronizedzBad Message LengthzBad Message Type)rrNr/r0zUnsupported Version Numberz Bad Peer ASzBad BGP IdentifierzUnsupported Optional Parameterz.Authentication Failure - Deprecated (RFC 4271)zUnacceptable Hold TimezUnsupported CapabilityzMalformed Attribute Listz!Unrecognized Well-known AttributezMissing Well-known AttributezAttribute Flags ErrorzAttribute Length ErrorzInvalid ORIGIN Attributez'AS Routing Loop - Deprecated (RFC 4271)zInvalid NEXT_HOP AttributezOptional Attribute ErrorzInvalid Network FieldzMalformed AS_PATH) rrNr/r0rkrrr1r2rrrzUnspecified Errorz,Receive Unexpected Message in OpenSent Statez/Receive Unexpected Message in OpenConfirm Statez/Receive Unexpected Message in Established Statez"Maximum Number of Prefixes ReachedzAdministrative ShutdownzPeer De-configuredzAdministrative ResetzConnection RejectedzOther Configuration ChangezConnection Collision ResolutionzOut of Resources) rrNr/r0rkrrr1r2zInvalid Message Lengthc@s@eZdZdZdZeddeeddedddd e d d d gZ d S) rzK NOTIFICATION messages end a BGP session. References: RFC 4271 r error_coderZ error_subcodecCs|jSrI)rrr+r+r,r rczBGPNotification.r)Z depends_onrdataNr) r&r'r(r)rr _error_codesr_error_subcodesrrr+r+r+r,rs  Z IMMEDIATEZDEFERrZADDZREMOVEz REMOVE-ALLZPERMITZDENYrNcCs |a|adS)zM Helper function that sets the afi / safi values of ORP entries. N)_orf_entry_afi_orf_entry_safirrr+r+r,_update_orf_afi_safi. s rcsZeZdZdZddgZdZedddeeddd ee d dd e d d gZ fddZ Z S) BGPORFEntryzN Provides an implementation of an ORF entry. References: RFC 5291 rrz ORF entryactionrr/matchrNrrr|rcs6|dd|_|dd|_tt|j|i|dS)NrrNr)poprrrrr)r7rrrr+r,rI szBGPORFEntry.__init__)r&r'r(r)rrr _orf_actions _orf_matchrrrrrr+r+rr,r; s   rc@seZdZdZddZdS)_ORFNLRIPacketFieldz, PacketField handling the ORF NLRI. cCs:d}|jdkrt|}n|jdkr,t|}n t|}|Sr])rr}rr rrr+r+r,r_T s     z_ORFNLRIPacketField.m2iNrr+r+r+r,rO src @s\eZdZdZdZedddeedddeeddd e d de d de d de d de gZ dS)BGPORFAddressPrefixzJ Provides an implementation of the Address Prefix ORF (RFC 5292). rrrr/rrNrrsequencemin_lenmax_lenr~rN)r&r'r(r)rr rrrrr rrrr+r+r+r,re s    rc @steZdZdZdZedddeedddeeddd e d de d de d de d de dde dde dde g ZdS)BGPORFCoveringPrefixz> Provides an implementation of the CP-ORF (RFC 7543). rrrr/rrNrrrrrrtZ import_rt route_typeZ host_addrN)r&r'r(r)rr rrrrr rrrrr+r+r+r,ru s    rc@s eZdZdZddZddZdS)BGPORFEntryPacketListFieldz3 PacketListField handling the ORF entries. cCsvd}t|jtr"|jj}|jj}nd}d}|jdks>|jdkrNt|||d}n$|jdkrht|||d}n t |}|S)NrNrrrr) isinstance underlayerrrrr rrr r)r7r@rir6rrr+r+r,r_ s    zBGPORFEntryPacketListField.m2ic Csg}d}d}|jdur ||}|}|dkr4|gfS|durV|d|||d}}|r|}|jdkst|jdkrtt|d}d|}nR|jdkr|jdkrd }n8|jd krd }n(|jd krt|d } | d krd}nd}|d|} ||d}||| } || qV|||fS)Nrrcrrrr2rrNrr/rrrrr)rr r3r"rr_r*) r7r@rZr+rar6rorf_lenr{rr,r-r+r+r,rb s@             z#BGPORFEntryPacketListField.getfieldN)r&r'r(r)r_rbr+r+r+r,r src @sLeZdZdZdZeddeeddeedddd d e dge d d d gZ dS)BGPORFz` Provides an implementation of ORFs carried in the RR message. References: RFC 5291 ZORFZwhen_to_refreshrr rNr%rrAcCs|jSrI)rrr+r+r,r rczBGPORF.r/) r&r'r(r)rr _orf_when_to_refreshr!rrrrr+r+r+r,r s  rz Route-RefreshZBoRRZEoRR)rrNr/rxc@sJeZdZdZdZeddeeddeedde e e dd e d d gZ d S) rze Provides an implementation of the ROUTE-REFRESH message. References: RFC 2918, RFC 7313 rrrNsubtyperrZorf_datarcCs|jr|jjpddkS)Nrr)rryrr+r+r,r szBGPRouteRefresh.N)r&r'r(r)rrrr rr_message_subtypesrrrrrr+r+r+r,r s    )dport)Zsportrrz[bgp.py] use_2_bytes_asn: %s)r) __future__rrUr<rSZscapyrZ scapy.packetrrrZ scapy.fieldsrrr r r r r rrrrrrrrrrrrrrrrZscapy.layers.inetrZscapy.layers.inet6rZ scapy.configr r!Z scapy.compatr"r#Z scapy.errorr$Zscapy.libs.sixZlibssixr%rXZBGP_MAXIMUM_MESSAGE_SIZErrrurZ_BGP_PATH_ATTRIBUTE_MIN_SIZEr3r4rprwr|r}rrrrrrrrrrrrrrrrr=rrrrrrrrwith_metaclassr rrr!r"rr(rr0rrr3r5r7rrrrPrSr`rWrZrcrdrfrhrirjrnrmrorprZ_ext_comm_evpn_subtypesZ/_ext_comm_trans_two_octets_as_specific_subtypesZ3_ext_comm_non_trans_two_octets_as_specific_subtypesZ0_ext_comm_trans_four_octets_as_specific_subtypesZ4_ext_comm_non_trans_four_octets_as_specific_subtypesZ+_ext_comm_trans_ipv4_addr_specific_subtypesZ/_ext_comm_non_trans_ipv4_addr_specific_subtypesZ_ext_comm_trans_opaque_subtypesZ#_ext_comm_non_trans_opaque_subtypesZ)_ext_comm_generic_transitive_exp_subtypesZ/_ext_comm_generic_transitive_exp_part2_subtypesZ/_ext_comm_generic_transitive_exp_part3_subtypesrZ(_ext_comm_trans_ipv6_addr_specific_typesZ,_ext_comm_non_trans_ipv6_addr_specific_typesrrtrxrzr{r}rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrwarningr*r+r+r+r,s8  d      0+ )    #  2  %!  "-3.(#) !!          : "  ^;  N X