Crate packet_dissector_bgp 

BGP-4 (Border Gateway Protocol version 4) dissector.

References

• RFC 4271 (BGP-4): https://www.rfc-editor.org/rfc/rfc4271
• RFC 1997 (Communities): https://www.rfc-editor.org/rfc/rfc1997
• RFC 2918 (Route Refresh): https://www.rfc-editor.org/rfc/rfc2918
• RFC 4360 (Extended Communities): https://www.rfc-editor.org/rfc/rfc4360
• RFC 4456 (Route Reflection): https://www.rfc-editor.org/rfc/rfc4456
• RFC 4486 (Cease NOTIFICATION subcodes): https://www.rfc-editor.org/rfc/rfc4486
• RFC 4760 (Multiprotocol Extensions): https://www.rfc-editor.org/rfc/rfc4760
• RFC 6793 (4-octet AS Numbers): https://www.rfc-editor.org/rfc/rfc6793
• RFC 7313 (Enhanced Route Refresh): https://www.rfc-editor.org/rfc/rfc7313
• RFC 8092 (Large Communities): https://www.rfc-editor.org/rfc/rfc8092
• RFC 8203 (Hard Reset Cease subcode): https://www.rfc-editor.org/rfc/rfc8203
• RFC 8654 (Extended Message): https://www.rfc-editor.org/rfc/rfc8654
• RFC 8669 (BGP Prefix-SID): https://www.rfc-editor.org/rfc/rfc8669
• RFC 9012 (Tunnel Encapsulation / Color): https://www.rfc-editor.org/rfc/rfc9012
• RFC 9072 (Extended Optional Parameters Length): https://www.rfc-editor.org/rfc/rfc9072
• RFC 9252 (SRv6 BGP Services): https://www.rfc-editor.org/rfc/rfc9252
• draft-ietf-bess-mup-safi-00 (MUP SAFI): https://datatracker.ietf.org/doc/draft-ietf-bess-mup-safi/

RFC 4271 (BGP-4) Coverage

RFC Section	Description	Test
4.1	Message Header	parse_bgp_keepalive
4.1	Marker validation	parse_bgp_invalid_marker
4.1	Truncated header	parse_bgp_truncated_header
4.2	OPEN Message	parse_bgp_open_basic
4.2	OPEN with Capabilities	parse_bgp_open_with_capabilities
4.2	Truncated OPEN	parse_bgp_truncated_open
4.3	UPDATE Withdrawn Routes	parse_bgp_update_withdraw
4.3	UPDATE Path Attributes + NLRI	parse_bgp_update_announce
4.3	NLRI prefix CIDR formatting	format_nlri_ipv4_prefix_cidr
4.5	NOTIFICATION	parse_bgp_notification
5.1.1	ORIGIN	parse_bgp_update_origin
5.1.2	AS_PATH	parse_bgp_update_as_path
5.1.3	NEXT_HOP	parse_bgp_update_next_hop
5.1.4	MULTI_EXIT_DISC	parse_bgp_update_multi_exit_disc
5.1.5	LOCAL_PREF	parse_bgp_update_local_pref
5.1.6	ATOMIC_AGGREGATE	parse_bgp_update_atomic_aggregate
5.1.7	AGGREGATOR (2-byte AS)	parse_bgp_update_aggregator_2byte_as
4.1	Multiple messages per segment	parse_bgp_multiple_messages
4.2+4.4	OPEN followed by KEEPALIVE	parse_bgp_open_followed_by_keepalive
4.3	Unknown attribute (raw bytes)	parse_bgp_update_unknown_attribute

RFC 6793 (4-octet AS Numbers) Coverage

RFC Section	Description	Test
3	AGGREGATOR (4-byte AS)	parse_bgp_update_aggregator_4byte_as
3	AS4_PATH	parse_bgp_update_as4_path
3	AS4_AGGREGATOR	parse_bgp_update_as4_aggregator

RFC 1997 Coverage

RFC Section	Description	Test
3	COMMUNITIES	parse_bgp_update_communities

RFC 2918 Coverage

RFC Section	Description	Test
3	ROUTE-REFRESH	parse_bgp_route_refresh

RFC 7313 (Enhanced Route Refresh) Coverage

RFC Section	Description	Test
4	Message Subtype (BoRR)	parse_bgp_route_refresh_subtype_borr

RFC 9072 (Extended Optional Parameters Length) Coverage

RFC Section	Description	Test
2	Extended OPEN encoding + 2-octet param length	parse_bgp_open_extended_optional_parameters

RFC 4486 / RFC 8203 (Cease NOTIFICATION subcodes) Coverage

RFC Section	Description	Test
RFC 4486 §4	Cease subcodes 1–8 + RFC 8203 §4 subcode 9	parse_bgp_notification_cease_subcode_name

RFC 4360 / RFC 9012 Coverage

RFC Section	Description	Test
2	Extended Communities + Color	parse_bgp_update_extended_communities
2	IPv4 Address Specific Route Target	parse_bgp_update_extended_communities_ipv4_route_target
2	Route Origin (Two-Octet AS)	parse_bgp_update_extended_communities_route_origin
2	IPv4 Address Specific Route Origin	parse_bgp_update_extended_communities_ipv4_route_origin
2	EVPN Extended Community	parse_bgp_update_extended_communities_evpn
2	Unknown Extended Community	parse_bgp_update_extended_communities_unknown

RFC 4456 (Route Reflection) Coverage

RFC Section	Description	Test
8	ORIGINATOR_ID	parse_bgp_update_originator_id
8	CLUSTER_LIST	parse_bgp_update_cluster_list

RFC 4760 Coverage

RFC Section	Description	Test
3	MP_REACH_NLRI (IPv6)	parse_bgp_update_mp_reach_ipv6
3	MP_REACH_NLRI (IPv6 link-local NH)	parse_bgp_update_mp_reach_ipv6_link_local
4	MP_UNREACH_NLRI (IPv6)	parse_bgp_update_mp_unreach_ipv6
4	MP_UNREACH_NLRI (IPv4)	parse_bgp_update_mp_unreach_ipv4
3	IPv6 NLRI prefix CIDR formatting	format_nlri_ipv6_prefix_cidr

draft-ietf-bess-mup-safi-00 Coverage

Section	Description	Test
3	MUP NLRI (Interwork Segment Discovery)	parse_bgp_update_mup_interwork_segment_discovery
3.3	Type 1 ST (3GPP 5G)	parse_bgp_update_mup_type1_st

RFC 8092 Coverage

RFC Section	Description	Test
2	LARGE_COMMUNITY	parse_bgp_update_large_community

RFC 8669 (BGP Prefix-SID) Coverage

RFC Section	Description	Test
3.1	Label-Index TLV	parse_bgp_prefix_sid_label_index
3.2	Originator SRGB TLV	parse_bgp_prefix_sid_originator_srgb
3	Multiple TLVs	parse_bgp_prefix_sid_multiple_tlvs
3	Unknown TLV	parse_bgp_prefix_sid_unknown_tlv
6	Truncated TLV handling	parse_bgp_prefix_sid_truncated

RFC 9252 (SRv6 BGP Services) Coverage

RFC Section	Description	Test
2	SRv6 L3 Service TLV	parse_bgp_prefix_sid_srv6_l3_service
2	SRv6 L2 Service TLV	parse_bgp_prefix_sid_srv6_l2_service
3.1	SRv6 SID Information Sub-TLV	parse_bgp_prefix_sid_srv6_l3_service
3.2.1	SRv6 SID Structure Sub-Sub-TLV	parse_bgp_prefix_sid_srv6_sid_structure

Structs

BgpDissector

BGP-4 dissector.