diff options
| author | Alexis La Goutte <alexis.lagoutte@gmail.com> | 2014-01-13 22:24:32 +0000 |
|---|---|---|
| committer | Alexis La Goutte <alexis.lagoutte@gmail.com> | 2014-01-13 22:24:32 +0000 |
| commit | 10345a6b2e87d842e5f9968b73ec86d60c29c844 (patch) | |
| tree | 41a58ab2366bd7a0451f17b34346d4cc7dd6a3a5 | |
| parent | c9778167eadaaa4392cbb34509a3f8234b8d467f (diff) | |
From Miroslav Miklus via https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=9504 Enhance BGP dissector : bgp-ls dissector (draft-ietf-idr-ls-distribution-04)
BGPTYPE_LINK_STATE_ATTR is temporarily set to 99, would need change when IANA allocate a Path Attribute value for BGP-LS
From me :
* Fix indent
* fix arg encoding (via encoding-args tools)
svn path=/trunk/; revision=54728
| -rw-r--r-- | epan/afn.c | 1 | ||||
| -rw-r--r-- | epan/afn.h | 2 | ||||
| -rw-r--r-- | epan/dissectors/packet-bgp.c | 1665 |
3 files changed, 1667 insertions, 1 deletions
diff --git a/epan/afn.c b/epan/afn.c index 74ab8c03dd..3902aca81b 100644 --- a/epan/afn.c +++ b/epan/afn.c @@ -59,6 +59,7 @@ const value_string afn_vals[] = { { AFNUM_EIGRP_IPV4, "EIGRP IPv4 Service Family" }, { AFNUM_EIGRP_IPV6, "EIGRP IPv6 Service Family" }, { AFNUM_LCAF, "LISP Canonical Address Format (LCAF)" }, + { AFNUM_LINK_STATE, "Link State and TE information" }, { 65535, "Reserved" }, { 0, NULL }, }; diff --git a/epan/afn.h b/epan/afn.h index 0e7f7f6282..22861c3d72 100644 --- a/epan/afn.h +++ b/epan/afn.h @@ -66,6 +66,8 @@ extern "C" { #define AFNUM_EIGRP_IPV4 16385 /* EIGRP IPv4 Service Family */ #define AFNUM_EIGRP_IPV6 16386 /* EIGRP IPv6 Service Family */ #define AFNUM_LCAF 16387 /* LISP Canonical Address Format */ +#define AFNUM_LINK_STATE 16388 /* draft-ietf-idr-ls-distribution */ + extern const value_string afn_vals[]; #ifdef __cplusplus diff --git a/epan/dissectors/packet-bgp.c b/epan/dissectors/packet-bgp.c index b4a9454e40..fac8fa067a 100644 --- a/epan/dissectors/packet-bgp.c +++ b/epan/dissectors/packet-bgp.c @@ -186,6 +186,7 @@ void proto_reg_handoff_bgp(void); #define BGPTYPE_AS4_AGGREGATOR 18 /* RFC 6793 */ #define BGPTYPE_SAFI_SPECIFIC_ATTR 19 /* draft-kapoor-nalawade-idr-bgp-ssa-00.txt */ #define BGPTYPE_TUNNEL_ENCAPS_ATTR 23 /* RFC5512 */ +#define BGPTYPE_LINK_STATE_ATTR 99 /* FIXME: draft-ietf-idr-ls-distribution-03 temp. value no IANA assignee yet */ /* NLRI type as define in BGP flow spec RFC */ #define BGPNLRI_FSPEC_DST_PFIX 1 /* RFC 5575 */ @@ -307,6 +308,7 @@ void proto_reg_handoff_bgp(void); #define SAFNUM_TUNNEL 64 /* draft-nalawade-kapoor-tunnel-safi-02.txt */ #define SAFNUM_VPLS 65 #define SAFNUM_MDT 66 /* rfc6037 */ +#define SAFNUM_LINK_STATE 71 /* draft-ietf-idr-ls-distribution */ #define SAFNUM_LAB_VPNUNICAST 128 /* Draft-rosen-rfc2547bis-03 */ #define SAFNUM_LAB_VPNMULCAST 129 #define SAFNUM_LAB_VPNUNIMULC 130 @@ -339,6 +341,108 @@ void proto_reg_handoff_bgp(void); #define TUNNEL_SUBTLV_COLOR 4 #define TUNNEL_SUBTLV_LOAD_BALANCE 5 +/* Link-State NLRI types */ +#define LINK_STATE_NODE_NLRI 1 +#define LINK_STATE_LINK_NLRI 2 +#define LINK_STATE_IPV4_TOPOLOGY_PREFIX_NLRI 3 +#define LINK_STATE_IPV6_TOPOLOGY_PREFIX_NLRI 4 + +/* Link-State NLRI Protocol-ID values */ +#define BGP_LS_NLRI_PROTO_ID_UNKNOWN 0 +#define BGP_LS_NLRI_PROTO_ID_IS_IS_LEVEL_1 1 +#define BGP_LS_NLRI_PROTO_ID_IS_IS_LEVEL_2 2 +#define BGP_LS_NLRI_PROTO_ID_OSPF 3 +#define BGP_LS_NLRI_PROTO_ID_DIRECT 4 +#define BGP_LS_NLRI_PROTO_ID_STATIC 5 + +/* Link-State routing universes */ +#define BGP_LS_NLRI_ROUTING_UNIVERSE_LEVEL_3 0 +#define BGP_LS_NLRI_ROUTING_UNIVERSE_LEVEL_1 1 + +#define BGP_LS_PREFIX_OSPF_ROUTE_TYPE_UNKNOWN 0 +#define BGP_LS_PREFIX_OSPF_ROUTE_TYPE_INTRA_AREA 1 +#define BGP_LS_PREFIX_OSPF_ROUTE_TYPE_INTER_AREA 2 +#define BGP_LS_PREFIX_OSPF_ROUTE_TYPE_EXTERNAL_1 3 +#define BGP_LS_PREFIX_OSPF_ROUTE_TYPE_EXTERNAL_2 4 +#define BGP_LS_PREFIX_OSPF_ROUTE_TYPE_NSSA_1 5 +#define BGP_LS_PREFIX_OSPF_ROUTE_TYPE_NSSA_2 6 + +/* draft-ietf-idr-ls-distribution-03 */ +#define BGP_NLRI_TLV_LOCAL_NODE_DESCRIPTORS 256 +#define BGP_NLRI_TLV_REMOTE_NODE_DESCRIPTORS 257 +#define BGP_NLRI_TLV_LINK_LOCAL_REMOTE_IDENTIFIERS 258 +#define BGP_NLRI_TLV_IPV4_INTERFACE_ADDRESS 259 +#define BGP_NLRI_TLV_IPV4_NEIGHBOR_ADDRESS 260 +#define BGP_NLRI_TLV_IPV6_INTERFACE_ADDRESS 261 +#define BGP_NLRI_TLV_IPV6_NEIGHBOR_ADDRESS 262 +#define BGP_NLRI_TLV_MULTI_TOPOLOGY_ID 263 +#define BGP_NLRI_TLV_OSPF_ROUTE_TYPE 264 +#define BGP_NLRI_TLV_IP_REACHABILITY_INFORMATION 265 + +#define BGP_NLRI_TLV_AUTONOMOUS_SYSTEM 512 +#define BGP_NLRI_TLV_BGP_LS_IDENTIFIER 513 +#define BGP_NLRI_TLV_AREA_ID 514 +#define BGP_NLRI_TLV_IGP_ROUTER_ID 515 + +#define BGP_NLRI_TLV_NODE_FLAG_BITS 1024 +#define BGP_NLRI_TLV_OPAQUE_NODE_PROPERTIES 1025 +#define BGP_NLRI_TLV_NODE_NAME 1026 +#define BGP_NLRI_TLV_IS_IS_AREA_IDENTIFIER 1027 +#define BGP_NLRI_TLV_IPV4_ROUTER_ID_OF_LOCAL_NODE 1028 +#define BGP_NLRI_TLV_IPV6_ROUTER_ID_OF_LOCAL_NODE 1029 +#define BGP_NLRI_TLV_IPV4_ROUTER_ID_OF_REMOTE_NODE 1030 +#define BGP_NLRI_TLV_IPV6_ROUTER_ID_OF_REMOTE_NODE 1031 + +#define BGP_NLRI_TLV_ADMINISTRATIVE_GROUP_COLOR 1088 +#define BGP_NLRI_TLV_MAX_LINK_BANDWIDTH 1089 +#define BGP_NLRI_TLV_MAX_RESERVABLE_LINK_BANDWIDTH 1090 +#define BGP_NLRI_TLV_UNRESERVED_BANDWIDTH 1091 +#define BGP_NLRI_TLV_TE_DEFAULT_METRIC 1092 +#define BGP_NLRI_TLV_LINK_PROTECTION_TYPE 1093 +#define BGP_NLRI_TLV_MPLS_PROTOCOL_MASK 1094 +#define BGP_NLRI_TLV_METRIC 1095 +#define BGP_NLRI_TLV_SHARED_RISK_LINK_GROUP 1096 +#define BGP_NLRI_TLV_OPAQUE_LINK_ATTRIBUTE 1097 +#define BGP_NLRI_TLV_LINK_NAME_ATTRIBUTE 1098 + +#define BGP_NLRI_TLV_IGP_FLAGS 1152 +#define BGP_NLRI_TLV_ROUTE_TAG 1153 +#define BGP_NLRI_TLV_EXTENDED_TAG 1154 +#define BGP_NLRI_TLV_PREFIX_METRIC 1155 +#define BGP_NLRI_TLV_OSPF_FORWARDING_ADDRESS 1156 +#define BGP_NLRI_TLV_OPAQUE_PREFIX_ATTRIBUTE 1157 + + +/* Link-State NLRI TLV lengths */ +#define BGP_NLRI_TLV_LEN_AUTONOMOUS_SYSTEM 4 +#define BGP_NLRI_TLV_LEN_BGP_LS_IDENTIFIER 4 +#define BGP_NLRI_TLV_LEN_AREA_ID 4 +#define BGP_NLRI_TLV_LEN_IPV4_ROUTER_ID 4 +#define BGP_NLRI_TLV_LEN_IPV6_ROUTER_ID 16 +#define BGP_NLRI_TLV_LEN_IPV4_ROUTER_ID_OF_LOCAL_NODE BGP_NLRI_TLV_LEN_IPV4_ROUTER_ID +#define BGP_NLRI_TLV_LEN_IPV6_ROUTER_ID_OF_LOCAL_NODE BGP_NLRI_TLV_LEN_IPV6_ROUTER_ID +#define BGP_NLRI_TLV_LEN_IPV4_ROUTER_ID_OF_REMOTE_NODE BGP_NLRI_TLV_LEN_IPV4_ROUTER_ID +#define BGP_NLRI_TLV_LEN_IPV6_ROUTER_ID_OF_REMOTE_NODE BGP_NLRI_TLV_LEN_IPV6_ROUTER_ID +#define BGP_NLRI_TLV_LEN_LINK_LOCAL_REMOTE_IDENTIFIERS 8 +#define BGP_NLRI_TLV_LEN_IPV4_INTERFACE_ADDRESS 4 +#define BGP_NLRI_TLV_LEN_IPV4_NEIGHBOR_ADDRESS 4 +#define BGP_NLRI_TLV_LEN_IPV6_INTERFACE_ADDRESS 16 +#define BGP_NLRI_TLV_LEN_IPV6_NEIGHBOR_ADDRESS 16 +#define BGP_NLRI_TLV_LEN_MULTI_TOPOLOGY_ID 2 +#define BGP_NLRI_TLV_LEN_ADMINISTRATIVE_GROUP_COLOR 4 +#define BGP_NLRI_TLV_LEN_MAX_LINK_BANDWIDTH 4 +#define BGP_NLRI_TLV_LEN_MAX_RESERVABLE_LINK_BANDWIDTH 4 +#define BGP_NLRI_TLV_LEN_UNRESERVED_BANDWIDTH 32 +#define BGP_NLRI_TLV_LEN_TE_DEFAULT_METRIC 3 +#define BGP_NLRI_TLV_LEN_LINK_PROTECTION_TYPE 2 +#define BGP_NLRI_TLV_LEN_MPLS_PROTOCOL_MASK 1 +#define BGP_NLRI_TLV_LEN_METRIC 3 +#define BGP_NLRI_TLV_LEN_IGP_FLAGS 1 +#define BGP_NLRI_TLV_LEN_PREFIX_METRIC 4 +#define BGP_NLRI_TLV_LEN_AREA_ID 4 +#define BGP_NLRI_TLV_LEN_NODE_FLAG_BITS 1 + + #ifndef offsetof #define offsetof(type, member) ((size_t)(&((type *)0)->member)) #endif @@ -476,6 +580,7 @@ static const value_string bgpattr_type[] = { { BGPTYPE_AS4_AGGREGATOR, "AS4_AGGREGATOR" }, { BGPTYPE_SAFI_SPECIFIC_ATTR, "SAFI_SPECIFIC_ATTRIBUTE" }, { BGPTYPE_TUNNEL_ENCAPS_ATTR, "TUNNEL_ENCAPSULATION_ATTRIBUTE" }, + { BGPTYPE_LINK_STATE_ATTR, "LINK_STATE" }, { 0, NULL } }; @@ -599,6 +704,7 @@ static const value_string bgpattr_nlri_safi[] = { { SAFNUM_ENCAPSULATION, "Encapsulation"}, { SAFNUM_TUNNEL, "Tunnel"}, { SAFNUM_VPLS, "VPLS"}, + { SAFNUM_LINK_STATE, "Link State"}, { SAFNUM_LAB_VPNUNICAST, "Labeled VPN Unicast" }, /* draft-rosen-rfc2547bis-03 */ { SAFNUM_LAB_VPNMULCAST, "Labeled VPN Multicast" }, { SAFNUM_LAB_VPNUNIMULC, "Labeled VPN Unicast+Multicast" }, @@ -680,6 +786,45 @@ static const value_string mcast_vpn_route_type[] = { { 0, NULL } }; +/* NLRI type value_string as defined in idr-ls */ +static const value_string bgp_ls_nlri_type_vals[] = { + { LINK_STATE_LINK_NLRI, "Link NLRI" }, + { LINK_STATE_NODE_NLRI, "Node NLRI" }, + { LINK_STATE_IPV4_TOPOLOGY_PREFIX_NLRI, "IPv4 Topology Prefix NLRI" }, + { LINK_STATE_IPV6_TOPOLOGY_PREFIX_NLRI, "IPv6 Topology Prefix NLRI" }, + {0, NULL }, +}; + +/* Link-State NLRI Protocol-ID value strings */ +static const value_string link_state_nlri_protocol_id_values[] = { + {BGP_LS_NLRI_PROTO_ID_UNKNOWN, "Unknown" }, + {BGP_LS_NLRI_PROTO_ID_IS_IS_LEVEL_1, "IS-IS Level 1"}, + {BGP_LS_NLRI_PROTO_ID_IS_IS_LEVEL_2, "IS-IS Level 2"}, + {BGP_LS_NLRI_PROTO_ID_OSPF, "OSPF"}, + {BGP_LS_NLRI_PROTO_ID_DIRECT, "Direct"}, + {BGP_LS_NLRI_PROTO_ID_STATIC, "Static"}, + {0, NULL}, +}; + +/* Link-State routing universes */ +static const value_string link_state_nlri_routing_universe_values[] = { + {BGP_LS_NLRI_ROUTING_UNIVERSE_LEVEL_3, "L3 packet topology" }, + {BGP_LS_NLRI_ROUTING_UNIVERSE_LEVEL_1, "L1 optical topology"}, + {0, NULL} +}; + +/* Link state prefix NLRI OSPF Route Type */ +static const value_string link_state_prefix_descriptors_ospf_route_type[] = { + {BGP_LS_PREFIX_OSPF_ROUTE_TYPE_UNKNOWN, "Unknown" }, + {BGP_LS_PREFIX_OSPF_ROUTE_TYPE_INTRA_AREA, "Intra-Area"}, + {BGP_LS_PREFIX_OSPF_ROUTE_TYPE_INTER_AREA, "Inter Area"}, + {BGP_LS_PREFIX_OSPF_ROUTE_TYPE_EXTERNAL_1, "External 1"}, + {BGP_LS_PREFIX_OSPF_ROUTE_TYPE_EXTERNAL_2, "External 2"}, + {BGP_LS_PREFIX_OSPF_ROUTE_TYPE_NSSA_1, "NSSA 1"}, + {BGP_LS_PREFIX_OSPF_ROUTE_TYPE_NSSA_2, "NSSA 2"}, + {0, NULL} +}; + /* NLRI type value_string as define in BGP flow spec RFC */ static const value_string flowspec_nlri_opvaluepair_type[] = { @@ -831,6 +976,7 @@ static int hf_bgp_update_path_attribute_local_pref = -1; static int hf_bgp_update_path_attribute_multi_exit_disc = -1; static int hf_bgp_update_path_attribute_aggregator_as = -1; static int hf_bgp_update_path_attribute_aggregator_origin = -1; +static int hf_bgp_update_path_attribute_link_state = -1; /* BGP update tunnel encaps attribute RFC 5512 */ @@ -880,6 +1026,128 @@ static int hf_bgp_mcast_vpn_nlri_group_addr_ipv4 = -1; static int hf_bgp_mcast_vpn_nlri_group_addr_ipv6 = -1; static int hf_bgp_mcast_vpn_nlri_route_key = -1; +/* BGP-LS */ + +static int hf_bgp_ls_type = -1; +static int hf_bgp_ls_length = -1; + +static int hf_bgp_ls_safi72_nlri = -1; +static int hf_bgp_ls_safi128_nlri = -1; +static int hf_bgp_ls_safi128_nlri_route_distinguisher = -1; +static int hf_bgp_ls_safi128_nlri_route_distinguisher_type = -1; +static int hf_bgp_ls_safi128_nlri_route_dist_admin_asnum_2 = -1; +static int hf_bgp_ls_safi128_nlri_route_dist_admin_ipv4 = -1; +static int hf_bgp_ls_safi128_nlri_route_dist_admin_asnum_4 = -1; +static int hf_bgp_ls_safi128_nlri_route_dist_asnum_2 = -1; +static int hf_bgp_ls_safi128_nlri_route_dist_asnum_4 = -1; +static int hf_bgp_ls_nlri_type = -1; +static int hf_bgp_ls_nlri_length = -1; +static int hf_bgp_ls_nlri_link_nlri_type = -1; +static int hf_bgp_ls_nlri_link_descriptors_tlv = -1; +static int hf_bgp_ls_nlri_prefix_descriptors_tlv = -1; +static int hf_bgp_ls_nlri_link_local_identifier = -1; +static int hf_bgp_ls_nlri_link_remote_identifier = -1; +static int hf_bgp_ls_nlri_ipv4_interface_address = -1; +static int hf_bgp_ls_nlri_ipv4_neighbor_address = -1; +static int hf_bgp_ls_nlri_ipv6_interface_address = -1; +static int hf_bgp_ls_nlri_ipv6_neighbor_address = -1; +static int hf_bgp_ls_nlri_multi_topology_id = -1; +static int hf_bgp_ls_nlri_ospf_route_type = -1; +static int hf_bgp_ls_nlri_ip_reachability_prefix_length = -1; +static int hf_bgp_ls_nlri_ip_reachability_prefix_ip = -1; +static int hf_bgp_ls_nlri_node_nlri_type = -1; +static int hf_bgp_ls_nlri_node_protocol_id = -1; +static int hf_bgp_ls_nlri_node_identifier = -1; +static int hf_bgp_ls_ipv4_topology_prefix_nlri_type = -1; +static int hf_bgp_ls_ipv6_topology_prefix_nlri_type = -1; + +/* draft-ietf-idr-ls-distribution-03 TLVs */ +static int hf_bgp_ls_tlv_local_node_descriptors = -1; /* 256 */ +static int hf_bgp_ls_tlv_remote_node_descriptors = -1; /* 257 */ +static int hf_bgp_ls_tlv_link_local_remote_identifiers = -1; /* 258 */ +static int hf_bgp_ls_tlv_ipv4_interface_address = -1; /* 259 */ +static int hf_bgp_ls_tlv_ipv4_neighbor_address = -1; /* 260 */ +static int hf_bgp_ls_tlv_ipv6_interface_address = -1; /* 261 */ +static int hf_bgp_ls_tlv_ipv6_neighbor_address = -1; /* 262 */ +static int hf_bgp_ls_tlv_multi_topology_id = -1; /* 263 */ +static int hf_bgp_ls_tlv_ospf_route_type = -1; /* 264 */ +static int hf_bgp_ls_tlv_ip_reachability_information = -1; /* 265 */ + +static int hf_bgp_ls_tlv_autonomous_system = -1; /* 512 */ +static int hf_bgp_ls_tlv_autonomous_system_id = -1; +static int hf_bgp_ls_tlv_bgp_ls_identifier = -1; /* 513 */ +static int hf_bgp_ls_tlv_bgp_ls_identifier_id = -1; +static int hf_bgp_ls_tlv_area_id = -1; /* 514 */ +static int hf_bgp_ls_tlv_area_id_id = -1; +static int hf_bgp_ls_tlv_igp_router = -1; /* 515 */ +static int hf_bgp_ls_tlv_igp_router_id = -1; + +static int hf_bgp_ls_tlv_node_flags_bits = -1; /* 1024 */ +static int hf_bgp_ls_tlv_opaque_node_properties = -1; /* 1025 */ +static int hf_bgp_ls_tlv_opaque_node_properties_value = -1; +static int hf_bgp_ls_tlv_node_name = -1; /* 1026 */ +static int hf_bgp_ls_tlv_node_name_value = -1; +static int hf_bgp_ls_tlv_is_is_area_identifier = -1; /* 1027 */ +static int hf_bgp_ls_tlv_is_is_area_identifier_value = -1; +static int hf_bgp_ls_tlv_ipv4_router_id_of_local_node = -1; /* 1028 */ +static int hf_bgp_ls_tlv_ipv4_router_id_value = -1; +static int hf_bgp_ls_tlv_ipv6_router_id_value = -1; +static int hf_bgp_ls_tlv_ipv6_router_id_of_local_node = -1; /* 1029 */ +static int hf_bgp_ls_tlv_ipv4_router_id_of_remote_node = -1; /* 1030 */ +static int hf_bgp_ls_tlv_ipv6_router_id_of_remote_node = -1; /* 1031 */ + +static int hf_bgp_ls_tlv_administrative_group_color = -1; /* 1088 */ +static int hf_bgp_ls_tlv_administrative_group_color_value = -1; +static int hf_bgp_ls_tlv_max_link_bandwidth = -1; /* 1089 */ +static int hf_bgp_ls_tlv_max_reservable_link_bandwidth = -1; /* 1090 */ +static int hf_bgp_ls_tlv_unreserved_bandwidth = -1; /* 1091 */ +static int hf_bgp_ls_bandwidth_value = -1; +static int hf_bgp_ls_tlv_te_default_metric = -1; /* 1092 */ +static int hf_bgp_ls_tlv_te_default_metric_value = -1; +static int hf_bgp_ls_tlv_link_protection_type = -1; /* 1093 */ +static int hf_bgp_ls_tlv_link_protection_type_value = -1; +static int hf_bgp_ls_tlv_mpls_protocol_mask = -1; /* 1094 */ +static int hf_bgp_ls_tlv_metric = -1; /* 1095 */ +static int hf_bgp_ls_tlv_metric_value = -1; +static int hf_bgp_ls_tlv_shared_risk_link_group = -1; /* 1096 */ +static int hf_bgp_ls_tlv_shared_risk_link_group_value = -1; +static int hf_bgp_ls_tlv_opaque_link_attribute = -1; /* 1097 */ +static int hf_bgp_ls_tlv_opaque_link_attribute_value = -1; +static int hf_bgp_ls_tlv_link_name_attribute = -1; /* 1098 */ +static int hf_bgp_ls_tlv_link_name_attribute_value = -1; + +static int hf_bgp_ls_tlv_igp_flags = -1; /* 1152 */ +static int hf_bgp_ls_tlv_route_tag = -1; /* 1153 */ +static int hf_bgp_ls_tlv_route_tag_value = -1; +static int hf_bgp_ls_tlv_route_extended_tag = -1; /* 1154 */ +static int hf_bgp_ls_tlv_route_extended_tag_value = -1; +static int hf_bgp_ls_tlv_prefix_metric = -1; /* 1155 */ +static int hf_bgp_ls_tlv_prefix_metric_value = -1; +static int hf_bgp_ls_ospf_forwarding_address = -1; /* 1156 */ +static int hf_bgp_ls_ospf_forwarding_address_ipv4_address = -1; +static int hf_bgp_ls_ospf_forwarding_address_ipv6_address = -1; +static int hf_bgp_ls_opaque_prefix_attribute = -1; /* 1157 */ +static int hf_bgp_ls_opaque_prefix_attribute_value = -1; + + +/* Link Protection Types */ +static int hf_bgp_ls_link_protection_type_extra_traffic = -1; +static int hf_bgp_ls_link_protection_type_unprotected = -1; +static int hf_bgp_ls_link_protection_type_shared = -1; +static int hf_bgp_ls_link_protection_type_dedicated_1to1 = -1; +static int hf_bgp_ls_link_protection_type_dedicated_1plus1 = -1; +static int hf_bgp_ls_link_protection_type_enhanced = -1; +/* MPLS Protocol Mask flags */ +static int hf_bgp_ls_mpls_protocol_mask_flag_l = -1; +static int hf_bgp_ls_mpls_protocol_mask_flag_r = -1; +/* BGP-LS IGP Flags */ +static int hf_bgp_ls_igp_flags_flag_d = -1; +/* Node Flag Bits TLV's flags */ +static int hf_bgp_ls_node_flag_bits_overload = -1; +static int hf_bgp_ls_node_flag_bits_attached = -1; +static int hf_bgp_ls_node_flag_bits_external = -1; +static int hf_bgp_ls_node_flag_bits_abr = -1; + /* BGP flow spec nlri header field */ static int hf_bgp_flowspec_nlri_t = -1; @@ -1009,6 +1277,7 @@ static gint ett_bgp_tunnel_tlv = -1; static gint ett_bgp_tunnel_tlv_subtree = -1; static gint ett_bgp_tunnel_subtlv = -1; static gint ett_bgp_tunnel_subtlv_subtree = -1; +static gint ett_bgp_link_state = -1; static expert_field ei_bgp_cap_len_bad = EI_INIT; static expert_field ei_bgp_cap_gr_helper_mode_only = EI_INIT; @@ -1016,12 +1285,14 @@ static expert_field ei_bgp_notify_minor_unknown = EI_INIT; static expert_field ei_bgp_route_refresh_orf_type_unknown = EI_INIT; static expert_field ei_bgp_length_invalid = EI_INIT; static expert_field ei_bgp_afi_type_not_supported = EI_INIT; +static expert_field ei_bgp_ls_error = EI_INIT; /* desegmentation */ static gboolean bgp_desegment = TRUE; static gint bgp_asn_len = 0; + /* * Detect IPv4 prefixes conform to BGP Additional Path but NOT conform to standard BGP * @@ -2076,6 +2347,11 @@ mp_addr_to_str (guint16 afi, guint8 safi, tvbuff_t *tvb, gint offset, wmem_strbu break; } /* switch (safi) */ break; + case AFNUM_LINK_STATE: + wmem_strbuf_truncate(strbuf, 0); + wmem_strbuf_append_printf(strbuf, "BGP-LS Next Hop address"); + length=nhlen; + break; default: length = 0 ; wmem_strbuf_truncate(strbuf, 0); @@ -2085,6 +2361,844 @@ mp_addr_to_str (guint16 afi, guint8 safi, tvbuff_t *tvb, gint offset, wmem_strbu return(length) ; } +static int decode_bgp_link_node_descriptor(tvbuff_t *tvb, proto_tree *tree, gint offset, packet_info *pinfo, int length) +{ + guint16 sub_length; + guint16 type; + guint16 diss_length; + + proto_item* tlv_item; + proto_tree* tlv_tree; + + diss_length = 0; + + while (length > 0 ) { + if (length < 4) { + expert_add_info_format(pinfo, tree, &ei_bgp_ls_error, + "Unknown data in Link-State Link NLRI!"); + diss_length += length; + break; + } + type = tvb_get_ntohs(tvb, offset); + sub_length = tvb_get_ntohs(tvb, offset + 2); + + switch (type) { + case BGP_NLRI_TLV_AUTONOMOUS_SYSTEM: + tlv_item = proto_tree_add_item(tree, hf_bgp_ls_tlv_autonomous_system, tvb, offset, sub_length+4, ENC_NA); + tlv_tree = proto_item_add_subtree(tlv_item, ett_bgp_mp_reach_nlri); + proto_tree_add_item(tlv_tree, hf_bgp_ls_type, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN); + if (sub_length != BGP_NLRI_TLV_LEN_AUTONOMOUS_SYSTEM) { + expert_add_info_format(pinfo, tree, &ei_bgp_ls_error, + "Autonomous system TLV length should be %u bytes! (%u)", + BGP_NLRI_TLV_LEN_AUTONOMOUS_SYSTEM, sub_length); + break; + } + proto_tree_add_item(tlv_tree, hf_bgp_ls_tlv_autonomous_system_id, tvb, offset + 4, 4, ENC_NA); + break; + case BGP_NLRI_TLV_BGP_LS_IDENTIFIER: + tlv_item = proto_tree_add_item(tree, hf_bgp_ls_tlv_bgp_ls_identifier, tvb, offset, sub_length+4, ENC_NA); + tlv_tree = proto_item_add_subtree(tlv_item, ett_bgp_mp_reach_nlri); + proto_tree_add_item(tlv_tree, hf_bgp_ls_type, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN); + if (sub_length != BGP_NLRI_TLV_LEN_BGP_LS_IDENTIFIER) { + expert_add_info_format(pinfo, tree, &ei_bgp_ls_error, + "BGP-LS TLV length should be %u bytes! (%u)", + BGP_NLRI_TLV_LEN_BGP_LS_IDENTIFIER, sub_length); + break; + } + proto_tree_add_item(tlv_tree, hf_bgp_ls_tlv_bgp_ls_identifier_id, tvb, offset + 4, 4, ENC_NA); + break; + case BGP_NLRI_TLV_AREA_ID: + tlv_item = proto_tree_add_item(tree, hf_bgp_ls_tlv_area_id, tvb, offset, sub_length+4, ENC_NA); + tlv_tree = proto_item_add_subtree(tlv_item, ett_bgp_mp_reach_nlri); + proto_tree_add_item(tlv_tree, hf_bgp_ls_type, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN); + if (sub_length != BGP_NLRI_TLV_LEN_AREA_ID) { + expert_add_info_format(pinfo, tree, &ei_bgp_ls_error, + "Area ID TLV length should be %u bytes! (%u)", + BGP_NLRI_TLV_LEN_AREA_ID, sub_length); + break; + } + proto_tree_add_item(tlv_tree, hf_bgp_ls_tlv_area_id_id, tvb, offset + 4, 4, ENC_NA); + break; + case BGP_NLRI_TLV_IGP_ROUTER_ID: + tlv_item = proto_tree_add_item(tree, hf_bgp_ls_tlv_igp_router, tvb, offset, sub_length+4, ENC_NA); + tlv_tree = proto_item_add_subtree(tlv_item, ett_bgp_mp_reach_nlri); + proto_tree_add_item(tlv_tree, hf_bgp_ls_type, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_tlv_igp_router_id, tvb, offset + 4, sub_length, ENC_NA); + break; + default: + expert_add_info_format(pinfo, tree, &ei_bgp_ls_error, "Undefined node Descriptor Sub-TLV type (%u)!", type); + } + + length -= 4 + sub_length; + offset += 4 + sub_length; + diss_length += 4 + sub_length; + } + return diss_length; +} + + +/* + * Decode BGP Link State Local and Remote NODE Descriptors + */ +static int decode_bgp_link_node_nlri_tlvs(tvbuff_t *tvb, proto_tree *tree, gint offset, packet_info *pinfo, guint16 expected_sub_tlv) +{ + guint16 length; + guint16 type; + proto_tree* tlv_tree; + proto_item* tlv_item; + + type = tvb_get_ntohs(tvb, offset); + length = tvb_get_ntohs(tvb, offset + 2); + + if (expected_sub_tlv != type) { + expert_add_info_format(pinfo, tree, &ei_bgp_ls_error, "Expected/actual tlv mismatch, expected: %u, actual: %u", expected_sub_tlv, type); + } + + switch(type){ + + /*local and remote node descriptors */ + case BGP_NLRI_TLV_LOCAL_NODE_DESCRIPTORS: + tlv_item = proto_tree_add_item(tree, hf_bgp_ls_tlv_local_node_descriptors, tvb, offset, length+4, ENC_NA); + tlv_tree = proto_item_add_subtree(tlv_item, ett_bgp_mp_reach_nlri); + proto_tree_add_item(tlv_tree, hf_bgp_ls_type, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN); + decode_bgp_link_node_descriptor(tvb, tlv_tree, offset + 4, pinfo, length); + break; + + case BGP_NLRI_TLV_REMOTE_NODE_DESCRIPTORS: + tlv_item = proto_tree_add_item(tree, hf_bgp_ls_tlv_remote_node_descriptors, tvb, offset, length+4, ENC_NA); + tlv_tree = proto_item_add_subtree(tlv_item, ett_bgp_mp_reach_nlri); + proto_tree_add_item(tlv_tree, hf_bgp_ls_type, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN); + decode_bgp_link_node_descriptor(tvb, tlv_tree, offset + 4, pinfo, length); + break; + } + + return length +4 ; +} + +/* + * Dissect Link and Node NLRI common fields (Protocol-ID, Identifier, Local Node Desc.) + */ +static int decode_bgp_link_node_nlri_common_fields(tvbuff_t *tvb, + proto_tree *tree, gint offset, packet_info *pinfo, int length) { + int dissected_length; + int tmp_length; + + /* dissect Link NLRI header */ + if (length < 12) { + expert_add_info_format(pinfo, tree, &ei_bgp_ls_error, + "Link State NLRI length is lower than 12 bytes! (%d)", length); + return length; + } + + proto_tree_add_item(tree, hf_bgp_ls_nlri_node_protocol_id, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_bgp_ls_nlri_node_identifier, tvb, offset + 1, 8, ENC_BIG_ENDIAN); + + dissected_length = 9; + offset += dissected_length; + length -= dissected_length; + + /* dissect Local Node Descriptors TLV */ + if (length > 0 && length < 4) { + expert_add_info_format(pinfo, tree, &ei_bgp_ls_error, + "Unknown data in Link-State Link NLRI! length = %d bytes", length); + return dissected_length; + } + if (length < 1) + return dissected_length; + + tmp_length = decode_bgp_link_node_nlri_tlvs(tvb, tree, offset, pinfo, + BGP_NLRI_TLV_LOCAL_NODE_DESCRIPTORS); + if (tmp_length < 0) { + return -1; + } + dissected_length += tmp_length; + + return dissected_length; +} + + +/* + * Decode Link Descriptors + */ +static int decode_bgp_link_nlri_link_descriptors(tvbuff_t *tvb, + proto_tree *tree, gint offset, packet_info *pinfo, int length) { + + guint16 sub_length; + guint16 type; + guint16 diss_length; + guint16 tmp16; + + proto_item* tlv_item; + proto_tree* tlv_tree; + proto_item* tlv_sub_item; + proto_tree* tlv_sub_tree; + + tlv_item = proto_tree_add_item(tree, hf_bgp_ls_nlri_link_descriptors_tlv, tvb, offset, length + 4, ENC_NA); + tlv_tree = proto_item_add_subtree(tlv_item, ett_bgp_mp_reach_nlri); + + diss_length = 0; + while (length > 0) { + if (length < 4) { + expert_add_info_format(pinfo, tree, &ei_bgp_ls_error, + "Unknown data in Link-State Link NLRI!"); + diss_length += length; + break; + } + + type = tvb_get_ntohs(tvb, offset); + sub_length = tvb_get_ntohs(tvb, offset + 2); + switch (type) { + case BGP_NLRI_TLV_LINK_LOCAL_REMOTE_IDENTIFIERS: + if(sub_length != BGP_NLRI_TLV_LEN_LINK_LOCAL_REMOTE_IDENTIFIERS){ + expert_add_info_format(pinfo, tlv_tree, &ei_bgp_ls_error, + "Unexpected Link Local/Remote Identifiers TLV's length (%u), it must be %u bytes!", + sub_length, BGP_NLRI_TLV_LEN_LINK_LOCAL_REMOTE_IDENTIFIERS); + return -1; + } + tlv_sub_item = proto_tree_add_item(tlv_tree, + hf_bgp_ls_tlv_link_local_remote_identifiers, tvb, offset, + sub_length + 4, ENC_NA); + tlv_sub_tree = proto_item_add_subtree(tlv_sub_item, ett_bgp_mp_reach_nlri); + break; + + case BGP_NLRI_TLV_IPV4_INTERFACE_ADDRESS: + if(sub_length != BGP_NLRI_TLV_LEN_IPV4_INTERFACE_ADDRESS){ + expert_add_info_format(pinfo, tlv_tree, &ei_bgp_ls_error, + "Unexpected IPv4 Interface Address TLV's length (%u), it must be %u bytes!", + sub_length, BGP_NLRI_TLV_LEN_IPV4_INTERFACE_ADDRESS); + return -1; + } + tlv_sub_item = proto_tree_add_item(tlv_tree, + hf_bgp_ls_tlv_ipv4_interface_address, tvb, offset, + sub_length + 4, ENC_NA); + tlv_sub_tree = proto_item_add_subtree(tlv_sub_item, ett_bgp_mp_reach_nlri); + break; + + case BGP_NLRI_TLV_IPV4_NEIGHBOR_ADDRESS: + if(sub_length != BGP_NLRI_TLV_LEN_IPV4_NEIGHBOR_ADDRESS){ + expert_add_info_format(pinfo, tlv_tree, &ei_bgp_ls_error, + "Unexpected IPv4 Neighbor Address TLV's length (%u), it must be %u bytes!", + sub_length, BGP_NLRI_TLV_LEN_IPV4_NEIGHBOR_ADDRESS); + return -1; + } + tlv_sub_item = proto_tree_add_item(tlv_tree, + hf_bgp_ls_tlv_ipv4_neighbor_address, tvb, offset, + sub_length + 4, ENC_NA); + tlv_sub_tree = proto_item_add_subtree(tlv_sub_item, ett_bgp_mp_reach_nlri); + break; + + case BGP_NLRI_TLV_IPV6_INTERFACE_ADDRESS: + if(sub_length != BGP_NLRI_TLV_LEN_IPV6_INTERFACE_ADDRESS){ + expert_add_info_format(pinfo, tlv_tree, &ei_bgp_ls_error, + "Unexpected IPv6 Interface Address TLV's length (%u), it must be %u bytes!", + sub_length, BGP_NLRI_TLV_LEN_IPV6_INTERFACE_ADDRESS); + return -1; + } + tlv_sub_item = proto_tree_add_item(tlv_tree, + hf_bgp_ls_tlv_ipv6_interface_address, tvb, offset, + sub_length + 4, ENC_NA); + tlv_sub_tree = proto_item_add_subtree(tlv_sub_item, ett_bgp_mp_reach_nlri); + break; + + case BGP_NLRI_TLV_IPV6_NEIGHBOR_ADDRESS: + if(sub_length != BGP_NLRI_TLV_IPV6_NEIGHBOR_ADDRESS){ + expert_add_info_format(pinfo, tlv_tree, &ei_bgp_ls_error, + "Unexpected IPv6 Neighbor Address TLV's length (%u), it must be %u bytes!", + sub_length, BGP_NLRI_TLV_IPV6_NEIGHBOR_ADDRESS); + return -1; + } + tlv_sub_item = proto_tree_add_item(tlv_tree, + hf_bgp_ls_tlv_ipv6_neighbor_address, tvb, offset, + sub_length + 4, ENC_NA); + tlv_sub_tree = proto_item_add_subtree(tlv_sub_item, ett_bgp_mp_reach_nlri); + break; + + case BGP_NLRI_TLV_MULTI_TOPOLOGY_ID: + if(sub_length != BGP_NLRI_TLV_LEN_MULTI_TOPOLOGY_ID){ + expert_add_info_format(pinfo, tlv_tree, &ei_bgp_ls_error, + "Unexpected Multi Topology ID TLV's length (%u), it must be %u bytes!", + sub_length, BGP_NLRI_TLV_LEN_MULTI_TOPOLOGY_ID); + return -1; + } + tlv_sub_item = proto_tree_add_item(tlv_tree, + hf_bgp_ls_tlv_multi_topology_id, tvb, offset, sub_length + 4, + ENC_NA); + tlv_sub_tree = proto_item_add_subtree(tlv_sub_item, ett_bgp_mp_reach_nlri); + break; + + default: + expert_add_info_format(pinfo, tlv_tree, &ei_bgp_ls_error, + "Unknown Link Descriptor TLV Code (%u)!", type); + return -1; + } + + proto_tree_add_item(tlv_sub_tree, hf_bgp_ls_type, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_sub_tree, hf_bgp_ls_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN); + + switch (type) { + case BGP_NLRI_TLV_LINK_LOCAL_REMOTE_IDENTIFIERS: + proto_tree_add_item(tlv_sub_tree, hf_bgp_ls_nlri_link_local_identifier, tvb, offset + 4, 4, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_sub_tree, hf_bgp_ls_nlri_link_remote_identifier, tvb, offset + 8, 4, ENC_BIG_ENDIAN); + break; + + case BGP_NLRI_TLV_IPV4_INTERFACE_ADDRESS: + proto_tree_add_item(tlv_sub_tree, hf_bgp_ls_nlri_ipv4_interface_address, tvb, offset + 4, + BGP_NLRI_TLV_LEN_IPV4_INTERFACE_ADDRESS, ENC_BIG_ENDIAN); + break; + + case BGP_NLRI_TLV_IPV4_NEIGHBOR_ADDRESS: + proto_tree_add_item(tlv_sub_tree, hf_bgp_ls_nlri_ipv4_neighbor_address, tvb, offset + 4, + BGP_NLRI_TLV_LEN_IPV4_INTERFACE_ADDRESS, ENC_BIG_ENDIAN); + break; + + case BGP_NLRI_TLV_IPV6_INTERFACE_ADDRESS: + proto_tree_add_item(tlv_sub_tree, hf_bgp_ls_nlri_ipv6_interface_address, tvb, offset + 4, + BGP_NLRI_TLV_LEN_IPV6_INTERFACE_ADDRESS, ENC_NA); + break; + + case BGP_NLRI_TLV_IPV6_NEIGHBOR_ADDRESS: + proto_tree_add_item(tlv_sub_tree, hf_bgp_ls_nlri_ipv6_neighbor_address, tvb, offset + 4, + BGP_NLRI_TLV_LEN_IPV6_INTERFACE_ADDRESS, ENC_NA); + break; + + case BGP_NLRI_TLV_MULTI_TOPOLOGY_ID: + tmp16 = tvb_get_ntohs(tvb, offset + 4); + tmp16 >>= 12; + if(tmp16){ + expert_add_info_format(pinfo, tlv_sub_tree, &ei_bgp_ls_error, "Reserved bits of Multi Topology ID must be set to zero! (%u)", tmp16); + } + proto_tree_add_item(tlv_sub_tree, hf_bgp_ls_nlri_multi_topology_id, tvb, offset + 4, + BGP_NLRI_TLV_LEN_MULTI_TOPOLOGY_ID, ENC_BIG_ENDIAN); + break; + } + + length -= 4 + sub_length; + offset += 4 + sub_length; + diss_length += 4 + sub_length; + } + return diss_length; +} + +/* + * Decode Prefix Descriptors + */ +static int decode_bgp_link_nlri_prefix_descriptors(tvbuff_t *tvb, + proto_tree *tree, gint offset, packet_info *pinfo, int length) { + + guint16 sub_length; + guint16 type; + guint16 diss_length; + guint8 tmp8; + guint16 tmp16; + + proto_item* tlv_item; + proto_tree* tlv_tree; + proto_item* tlv_sub_item; + proto_tree* tlv_sub_tree; + + tlv_item = proto_tree_add_item(tree, hf_bgp_ls_nlri_prefix_descriptors_tlv, tvb, offset, length + 4, ENC_NA); + tlv_tree = proto_item_add_subtree(tlv_item, ett_bgp_mp_reach_nlri); + + diss_length = 0; + while (length > 0) { + if (length < 4) { + expert_add_info_format(pinfo, tree, &ei_bgp_ls_error, + "Unknown data in Link-State Link NLRI!"); + diss_length += length; + break; + } + + type = tvb_get_ntohs(tvb, offset); + sub_length = tvb_get_ntohs(tvb, offset + 2); + switch (type) { + case BGP_NLRI_TLV_MULTI_TOPOLOGY_ID: + if(sub_length != BGP_NLRI_TLV_LEN_MULTI_TOPOLOGY_ID){ + expert_add_info_format(pinfo, tlv_tree, &ei_bgp_ls_error, + "Unexpected Multi Topology ID TLV's length (%u), it must be %u bytes!", + sub_length, BGP_NLRI_TLV_LEN_MULTI_TOPOLOGY_ID); + return -1; + } + tlv_sub_item = proto_tree_add_item(tlv_tree, + hf_bgp_ls_tlv_multi_topology_id, tvb, offset, sub_length + 4, + ENC_NA); + tlv_sub_tree = proto_item_add_subtree(tlv_sub_item, ett_bgp_mp_reach_nlri); + break; + + case BGP_NLRI_TLV_OSPF_ROUTE_TYPE: + tlv_sub_item = proto_tree_add_item(tlv_tree, + hf_bgp_ls_tlv_ospf_route_type, tvb, offset, sub_length + 4, + ENC_NA); + tlv_sub_tree = proto_item_add_subtree(tlv_sub_item, ett_bgp_mp_reach_nlri); + break; + case BGP_NLRI_TLV_IP_REACHABILITY_INFORMATION: + tlv_sub_item = proto_tree_add_item(tlv_tree, + hf_bgp_ls_tlv_ip_reachability_information, tvb, offset, sub_length + 4, + ENC_NA); + tlv_sub_tree = proto_item_add_subtree(tlv_sub_item, ett_bgp_mp_reach_nlri); + break; + + default: + expert_add_info_format(pinfo, tlv_tree, &ei_bgp_ls_error, + "Unknown Prefix Descriptor TLV Code (%u)!", type); + return -1; + } + + proto_tree_add_item(tlv_sub_tree, hf_bgp_ls_type, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_sub_tree, hf_bgp_ls_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN); + + switch (type) { + case BGP_NLRI_TLV_MULTI_TOPOLOGY_ID: + tmp16 = tvb_get_ntohs(tvb, offset + 4); + tmp16 >>= 12; + if(tmp16){ + expert_add_info_format(pinfo, tlv_sub_tree, &ei_bgp_ls_error, "Reserved bits of Multi Topology ID must be set to zero! (%u)", tmp16); + } + proto_tree_add_item(tlv_sub_tree, hf_bgp_ls_nlri_multi_topology_id, tvb, offset + 4, + BGP_NLRI_TLV_LEN_MULTI_TOPOLOGY_ID, ENC_BIG_ENDIAN); + break; + + case BGP_NLRI_TLV_OSPF_ROUTE_TYPE: + + if (sub_length != 1) { + expert_add_info_format(pinfo, tlv_sub_tree, &ei_bgp_ls_error, "OSPF Route Type length must be \"1\""); + break; + } + proto_tree_add_item(tlv_sub_tree, hf_bgp_ls_nlri_ospf_route_type, tvb, offset + 4, 1, ENC_BIG_ENDIAN); + break; + + case BGP_NLRI_TLV_IP_REACHABILITY_INFORMATION: + tmp8 = tvb_get_guint8(tvb, offset + 4); + proto_tree_add_item(tlv_sub_tree, hf_bgp_ls_nlri_ip_reachability_prefix_length, tvb, offset + 4, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_sub_tree, hf_bgp_ls_nlri_ip_reachability_prefix_ip, tvb, offset + 5, (tmp8 / 8), ENC_NA); + break; + } + + length -= 4 + sub_length; + offset += 4 + sub_length; + diss_length += 4 + sub_length; + } + return diss_length; +} + +/* + * Decode a multiprotocol prefix + */ +static int +decode_link_state_attribute_tlv(proto_tree *tree, tvbuff_t *tvb, gint offset, packet_info *pinfo) +{ + guint16 type; + guint16 length; + guint8 tmp8; + guint16 tmp16; + guint32 tmp32; + gfloat tmp_float; + guint32 mask; + int n; + + proto_item* tlv_item; + proto_tree* tlv_tree; + proto_item* tlv_sub_item; + proto_tree* tlv_sub_tree; + + type = tvb_get_ntohs(tvb, offset); + length = tvb_get_ntohs(tvb, offset + 2); + + switch (type) { + + /* NODE ATTRIBUTE TLVs */ + case BGP_NLRI_TLV_MULTI_TOPOLOGY_ID: + tlv_item = proto_tree_add_item(tree, hf_bgp_ls_tlv_multi_topology_id, tvb, offset, length + 4, ENC_NA); + tlv_tree = proto_item_add_subtree(tlv_item, ett_bgp_link_state); + + for (n = 0; n < (length / BGP_NLRI_TLV_LEN_MULTI_TOPOLOGY_ID); n++) { + tmp16 = tvb_get_ntohs(tvb, offset + 4 + (n * BGP_NLRI_TLV_LEN_MULTI_TOPOLOGY_ID)); + tmp16 >>= 12; + if(tmp16){ + expert_add_info_format(pinfo, tlv_tree, &ei_bgp_ls_error, "Reserved bits of Multi Topology ID must be set to zero! (%u)", tmp16); + } + proto_tree_add_item(tlv_tree, hf_bgp_ls_nlri_multi_topology_id, tvb, offset + 4 + (n * BGP_NLRI_TLV_LEN_MULTI_TOPOLOGY_ID), + BGP_NLRI_TLV_LEN_MULTI_TOPOLOGY_ID, ENC_BIG_ENDIAN); + } + break; + + case BGP_NLRI_TLV_NODE_FLAG_BITS: + tlv_item = proto_tree_add_item(tree, hf_bgp_ls_tlv_node_flags_bits, tvb, offset, length+4, ENC_NA); + tlv_tree = proto_item_add_subtree(tlv_item, ett_bgp_link_state); + if(length != BGP_NLRI_TLV_LEN_NODE_FLAG_BITS){ + expert_add_info_format(pinfo, tlv_tree, &ei_bgp_ls_error, "Unexpected Node Flags Bits TLV's length (%u), it must be %u bytes!", + length, BGP_NLRI_TLV_LEN_NODE_FLAG_BITS); + break; + } + proto_tree_add_item(tlv_tree, hf_bgp_ls_type, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN); + tmp8 = tvb_get_guint8(tvb, offset); + proto_tree_add_boolean(tlv_tree, hf_bgp_ls_node_flag_bits_overload, tvb, offset, 1, tmp8); + proto_tree_add_boolean(tlv_tree, hf_bgp_ls_node_flag_bits_attached, tvb, offset, 1, tmp8); + proto_tree_add_boolean(tlv_tree, hf_bgp_ls_node_flag_bits_external, tvb, offset, 1, tmp8); + proto_tree_add_boolean(tlv_tree, hf_bgp_ls_node_flag_bits_abr, tvb, offset, 1, tmp8); + tmp8 &= 0x0f; + if(tmp8){ + expert_add_info_format(pinfo, tlv_tree, &ei_bgp_ls_error, "Reserved flag bits are not set to zero (%u).", tmp8); + } + break; + + case BGP_NLRI_TLV_OPAQUE_NODE_PROPERTIES: + tlv_item = proto_tree_add_item(tree, hf_bgp_ls_tlv_opaque_node_properties, tvb, offset, length+4, ENC_NA); + tlv_tree = proto_item_add_subtree(tlv_item, ett_bgp_link_state); + proto_tree_add_item(tlv_tree, hf_bgp_ls_type, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_tlv_opaque_node_properties_value, tvb, offset + 4, length, ENC_NA); + break; + + case BGP_NLRI_TLV_NODE_NAME: + tlv_item = proto_tree_add_item(tree, hf_bgp_ls_tlv_node_name, tvb, offset, length+4, ENC_NA); + tlv_tree = proto_item_add_subtree(tlv_item, ett_bgp_link_state); + proto_tree_add_item(tlv_tree, hf_bgp_ls_type, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_tlv_node_name_value, tvb, offset + 4, length, ENC_ASCII|ENC_NA); + break; + + case BGP_NLRI_TLV_IS_IS_AREA_IDENTIFIER: + tlv_item = proto_tree_add_item(tree, hf_bgp_ls_tlv_is_is_area_identifier, tvb, offset, length+4, ENC_NA); + tlv_tree = proto_item_add_subtree(tlv_item, ett_bgp_link_state); + proto_tree_add_item(tlv_tree, hf_bgp_ls_type, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_tlv_is_is_area_identifier_value, tvb, offset + 4, length, ENC_NA); + break; + + /* NODE & LINK ATTRIBUTE TLVs */ + case BGP_NLRI_TLV_IPV4_ROUTER_ID_OF_LOCAL_NODE: + tlv_item = proto_tree_add_item(tree, hf_bgp_ls_tlv_ipv4_router_id_of_local_node, tvb, offset, length+4, ENC_NA); + tlv_tree = proto_item_add_subtree(tlv_item, ett_bgp_link_state); + proto_tree_add_item(tlv_tree, hf_bgp_ls_type, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN); + if(length != BGP_NLRI_TLV_LEN_IPV4_ROUTER_ID_OF_LOCAL_NODE){ + expert_add_info_format(pinfo, tlv_tree, &ei_bgp_ls_error, "Unexpected IPv4 Router-ID TLV's length (%u), it must be %u bytes!", + length, BGP_NLRI_TLV_LEN_IPV4_ROUTER_ID_OF_LOCAL_NODE); + break; + } + proto_tree_add_item(tlv_tree, hf_bgp_ls_tlv_ipv4_router_id_value, tvb, offset + 4, 4, ENC_BIG_ENDIAN); + break; + case BGP_NLRI_TLV_IPV6_ROUTER_ID_OF_LOCAL_NODE: + tlv_item = proto_tree_add_item(tree, hf_bgp_ls_tlv_ipv6_router_id_of_local_node, tvb, offset, length+4, ENC_NA); + tlv_tree = proto_item_add_subtree(tlv_item, ett_bgp_link_state); + proto_tree_add_item(tlv_tree, hf_bgp_ls_type, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN); + if(length != BGP_NLRI_TLV_LEN_IPV6_ROUTER_ID_OF_LOCAL_NODE){ + expert_add_info_format(pinfo, tlv_tree, &ei_bgp_ls_error, "Unexpected IPv6 Router-ID TLV's length (%u), it must be %u bytes!", + length, BGP_NLRI_TLV_LEN_IPV6_ROUTER_ID_OF_LOCAL_NODE); + break; + } + proto_tree_add_item(tlv_tree, hf_bgp_ls_tlv_ipv6_router_id_value, tvb, offset + 4, BGP_NLRI_TLV_LEN_IPV6_ROUTER_ID_OF_LOCAL_NODE, ENC_NA); + break; + + /* Link Attribute TLVs */ + case BGP_NLRI_TLV_IPV4_ROUTER_ID_OF_REMOTE_NODE: + tlv_item = proto_tree_add_item(tree, hf_bgp_ls_tlv_ipv4_router_id_of_remote_node, tvb, offset, length+4, ENC_NA); + tlv_tree = proto_item_add_subtree(tlv_item, ett_bgp_link_state); + proto_tree_add_item(tlv_tree, hf_bgp_ls_type, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN); + if(length != BGP_NLRI_TLV_LEN_IPV4_ROUTER_ID_OF_REMOTE_NODE){ + expert_add_info_format(pinfo, tlv_tree, &ei_bgp_ls_error, "Unexpected IPv4 Router-ID TLV's length (%u), it must be %u bytes!", + length, BGP_NLRI_TLV_LEN_IPV4_ROUTER_ID_OF_REMOTE_NODE); + break; + } + proto_tree_add_item(tlv_tree, hf_bgp_ls_tlv_ipv4_router_id_value, tvb, offset + 4, 4, ENC_BIG_ENDIAN); + break; + case BGP_NLRI_TLV_IPV6_ROUTER_ID_OF_REMOTE_NODE: + tlv_item = proto_tree_add_item(tree, hf_bgp_ls_tlv_ipv6_router_id_of_remote_node, tvb, offset, length+4, ENC_NA); + tlv_tree = proto_item_add_subtree(tlv_item, ett_bgp_link_state); + proto_tree_add_item(tlv_tree, hf_bgp_ls_type, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN); + if(length != BGP_NLRI_TLV_LEN_IPV6_ROUTER_ID_OF_REMOTE_NODE){ + expert_add_info_format(pinfo, tlv_tree, &ei_bgp_ls_error, "Unexpected IPv6 Router-ID TLV's length (%u), it must be %u bytes!", + length, BGP_NLRI_TLV_LEN_IPV6_ROUTER_ID_OF_REMOTE_NODE); + break; + } + proto_tree_add_item(tlv_tree, hf_bgp_ls_tlv_ipv6_router_id_value, tvb, offset + 4, BGP_NLRI_TLV_LEN_IPV6_ROUTER_ID_OF_REMOTE_NODE, ENC_NA); + break; + + case BGP_NLRI_TLV_ADMINISTRATIVE_GROUP_COLOR: + tlv_item = proto_tree_add_item(tree, hf_bgp_ls_tlv_administrative_group_color, tvb, offset, length+4, ENC_NA); + tlv_tree = proto_item_add_subtree(tlv_item, ett_bgp_link_state); + if(length != BGP_NLRI_TLV_LEN_ADMINISTRATIVE_GROUP_COLOR){ + expert_add_info_format(pinfo, tlv_tree, &ei_bgp_ls_error, "Unexpected Administrative group (color) TLV's length (%u), it must be %u bytes!", + length, BGP_NLRI_TLV_LEN_ADMINISTRATIVE_GROUP_COLOR); + break; + } + proto_tree_add_item(tlv_tree, hf_bgp_ls_type, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN); + tmp32 = tvb_get_ntohl(tvb, offset + 4); + tlv_sub_item = proto_tree_add_item(tlv_tree, hf_bgp_ls_tlv_administrative_group_color_value, tvb, offset + 4, 4, ENC_BIG_ENDIAN); + tlv_sub_tree = proto_item_add_subtree(tlv_sub_item, ett_bgp_prefix); + mask = 1; + for(n = 0; n<32; n++){ + if( tmp32 & mask ) proto_tree_add_text(tlv_sub_tree, tvb, offset + 4, 4, "group %u", n); + mask <<= 1; + } + break; + + case BGP_NLRI_TLV_MAX_LINK_BANDWIDTH: + tlv_item = proto_tree_add_item(tree, hf_bgp_ls_tlv_max_link_bandwidth, tvb, offset, length+4, ENC_NA); + tlv_tree = proto_item_add_subtree(tlv_item, ett_bgp_link_state); + if(length != BGP_NLRI_TLV_LEN_MAX_LINK_BANDWIDTH){ + expert_add_info_format(pinfo, tlv_tree, &ei_bgp_ls_error, "Unexpected Maximum link bandwidth TLV's length (%u), it must be %u bytes!", + length, BGP_NLRI_TLV_LEN_MAX_LINK_BANDWIDTH); + break; + } + proto_tree_add_item(tlv_tree, hf_bgp_ls_type, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN); + tmp_float = tvb_get_ntohieee_float(tvb, offset + 4)*8/1000000; + proto_tree_add_float_format(tlv_tree, hf_bgp_ls_bandwidth_value, tvb, offset + 4, 4, tmp_float, "Maximum link bandwidth: %.2f Mbps", tmp_float); + break; + + case BGP_NLRI_TLV_MAX_RESERVABLE_LINK_BANDWIDTH: + tlv_item = proto_tree_add_item(tree, hf_bgp_ls_tlv_max_reservable_link_bandwidth, tvb, offset, length+4, ENC_NA); + tlv_tree = proto_item_add_subtree(tlv_item, ett_bgp_link_state); + if(length != BGP_NLRI_TLV_LEN_MAX_RESERVABLE_LINK_BANDWIDTH){ + expert_add_info_format(pinfo, tlv_tree, &ei_bgp_ls_error, "Unexpected Maximum reservable link bandwidth TLV's length (%u), it must be %u bytes!", + length, BGP_NLRI_TLV_LEN_MAX_RESERVABLE_LINK_BANDWIDTH); + break; + } + proto_tree_add_item(tlv_tree, hf_bgp_ls_type, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN); + tmp_float = tvb_get_ntohieee_float(tvb, offset + 4)*8/1000000; + proto_tree_add_float_format(tlv_tree, hf_bgp_ls_bandwidth_value, tvb, offset + 4, 4, tmp_float, "Maximum reservable link bandwidth: %.2f Mbps", tmp_float); + break; + + case BGP_NLRI_TLV_UNRESERVED_BANDWIDTH: + tlv_item = proto_tree_add_item(tree, hf_bgp_ls_tlv_unreserved_bandwidth, tvb, offset, length+4, ENC_NA); + tlv_tree = proto_item_add_subtree(tlv_item, ett_bgp_link_state); + if(length != BGP_NLRI_TLV_LEN_UNRESERVED_BANDWIDTH){ + expert_add_info_format(pinfo, tlv_tree, &ei_bgp_ls_error, "Unexpected Unreserved bandwidth TLV's length (%u), it must be %u bytes!", + length, BGP_NLRI_TLV_LEN_UNRESERVED_BANDWIDTH); + break; + } + proto_tree_add_item(tlv_tree, hf_bgp_ls_type, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN); + for(n = 0; n<8; n++){ + tmp_float = tvb_get_ntohieee_float(tvb, offset + 4 + (4 * n))*8/1000000; + tlv_sub_item = proto_tree_add_float_format(tlv_tree, hf_bgp_ls_bandwidth_value, tvb, offset + 4 + (4 * n), 4, tmp_float, "Unreserved Bandwidth: %.2f Mbps", tmp_float); + proto_item_prepend_text(tlv_sub_item, "Priority %u, ", n); + } + break; + + case BGP_NLRI_TLV_TE_DEFAULT_METRIC: + tlv_item = proto_tree_add_item(tree, hf_bgp_ls_tlv_te_default_metric, tvb, offset, length+4, ENC_NA); + tlv_tree = proto_item_add_subtree(tlv_item, ett_bgp_link_state); + + if(length != BGP_NLRI_TLV_LEN_TE_DEFAULT_METRIC){ + expert_add_info_format(pinfo, tlv_tree, &ei_bgp_ls_error, "Unexpected Metric TLV's length (%u), it must be %u bytes!", + length, BGP_NLRI_TLV_LEN_METRIC); + break; + } + proto_tree_add_item(tlv_tree, hf_bgp_ls_type, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_tlv_te_default_metric_value, tvb, offset + 4, 3, ENC_BIG_ENDIAN); + break; + + case BGP_NLRI_TLV_LINK_PROTECTION_TYPE: + tlv_item = proto_tree_add_item(tree, hf_bgp_ls_tlv_link_protection_type, tvb, offset, length+4, ENC_NA); + tlv_tree = proto_item_add_subtree(tlv_item, ett_bgp_link_state); + if(length != BGP_NLRI_TLV_LEN_LINK_PROTECTION_TYPE){ + expert_add_info_format(pinfo, tlv_tree, &ei_bgp_ls_error, "Unexpected Link Protection Type TLV's length (%u), it must be %u bytes!", + length, BGP_NLRI_TLV_LEN_LINK_PROTECTION_TYPE); + break; + } + proto_tree_add_item(tlv_tree, hf_bgp_ls_type, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN); + tmp8 = tvb_get_guint8(tvb, offset + 4); + tlv_sub_item = proto_tree_add_item(tlv_tree, hf_bgp_ls_tlv_link_protection_type_value, tvb, offset + 4, 1, ENC_NA); + tlv_sub_tree = proto_item_add_subtree(tlv_sub_item, ett_bgp_mp_reach_nlri); + proto_tree_add_boolean(tlv_sub_tree, hf_bgp_ls_link_protection_type_extra_traffic, tvb, offset + 4, 1, tmp8); + proto_tree_add_boolean(tlv_sub_tree, hf_bgp_ls_link_protection_type_unprotected, tvb, offset + 4, 1, tmp8); + proto_tree_add_boolean(tlv_sub_tree, hf_bgp_ls_link_protection_type_shared, tvb, offset + 4, 1, tmp8); + proto_tree_add_boolean(tlv_sub_tree, hf_bgp_ls_link_protection_type_dedicated_1to1, tvb, offset + 4, 1, tmp8); + proto_tree_add_boolean(tlv_sub_tree, hf_bgp_ls_link_protection_type_dedicated_1plus1, tvb, offset + 4, 1, tmp8); + proto_tree_add_boolean(tlv_sub_tree, hf_bgp_ls_link_protection_type_enhanced, tvb, offset + 4, 1, tmp8); + tmp8 >>= 6; + if(tmp8){ + expert_add_info_format(pinfo, tlv_sub_tree, &ei_bgp_ls_error, "Reserved Protection Capabilities bits are not set to zero (%u).", tmp8); + } + tmp8 = tvb_get_guint8(tvb, offset + 4 + 1); + if(tmp8){ + expert_add_info_format(pinfo, tlv_tree, &ei_bgp_ls_error, "Reserved field is not set to zero. (%u)", tmp8); + } + break; + case BGP_NLRI_TLV_MPLS_PROTOCOL_MASK: + tlv_item = proto_tree_add_item(tree, hf_bgp_ls_tlv_mpls_protocol_mask, tvb, offset, length+4, ENC_NA); + tlv_tree = proto_item_add_subtree(tlv_item, ett_bgp_link_state); + if(length != BGP_NLRI_TLV_LEN_MPLS_PROTOCOL_MASK){ + expert_add_info_format(pinfo, tlv_tree, &ei_bgp_ls_error, "Unexpected MPLS Protocol Mask TLV's length (%u), it must be %u bytes!", + length, BGP_NLRI_TLV_LEN_MPLS_PROTOCOL_MASK); + break; + } + proto_tree_add_item(tlv_tree, hf_bgp_ls_type, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN); + tmp8 = tvb_get_guint8(tvb, offset + 4); + proto_tree_add_boolean(tlv_tree, hf_bgp_ls_mpls_protocol_mask_flag_l, tvb, offset + 4, 1, tmp8); + proto_tree_add_boolean(tlv_tree, hf_bgp_ls_mpls_protocol_mask_flag_r, tvb, offset + 4, 1, tmp8); + tmp8 &= 0x3f; + if(tmp8){ + proto_tree_add_expert_format(tlv_tree, pinfo, &ei_bgp_ls_error, tvb, offset + 4, 1, + "Reserved flags are not set to zero (%u).", tmp8); + } + break; + case BGP_NLRI_TLV_METRIC: + tlv_item = proto_tree_add_item(tree, hf_bgp_ls_tlv_metric, tvb, offset, length+4, ENC_NA); + tlv_tree = proto_item_add_subtree(tlv_item, ett_bgp_link_state); + if(length != BGP_NLRI_TLV_LEN_METRIC){ + expert_add_info_format(pinfo, tlv_tree, &ei_bgp_ls_error, "Unexpected Metric TLV's length (%u), it must be %u bytes!", + length, BGP_NLRI_TLV_LEN_METRIC); + break; + } + proto_tree_add_item(tlv_tree, hf_bgp_ls_type, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_tlv_metric_value, tvb, offset + 4, 3, ENC_BIG_ENDIAN); + break; + case BGP_NLRI_TLV_SHARED_RISK_LINK_GROUP: + tlv_item = proto_tree_add_item(tree, hf_bgp_ls_tlv_shared_risk_link_group, tvb, offset, length+4, ENC_NA); + tlv_tree = proto_item_add_subtree(tlv_item, ett_bgp_link_state); + proto_tree_add_item(tlv_tree, hf_bgp_ls_type, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN); + tmp16 = length; + n = 0; + while(tmp16 > 0){ + if(tmp16 < 4) { + proto_tree_add_expert_format(tlv_tree, pinfo, &ei_bgp_ls_error, + tvb, offset + 4 + (n * 4), tmp16, + "Shared Risk Link Group Value must be 4 bytes long (%u).", tmp16); + break; + } + proto_tree_add_item(tlv_tree, hf_bgp_ls_tlv_shared_risk_link_group_value, tvb, offset + 4 + (n * 4), 4, ENC_BIG_ENDIAN); + tmp16 -= 4; + n++; + } + break; + case BGP_NLRI_TLV_OPAQUE_LINK_ATTRIBUTE: + tlv_item = proto_tree_add_item(tree, hf_bgp_ls_tlv_opaque_link_attribute, tvb, offset, length+4, ENC_NA); + tlv_tree = proto_item_add_subtree(tlv_item, ett_bgp_link_state); + proto_tree_add_item(tlv_tree, hf_bgp_ls_type, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_tlv_opaque_link_attribute_value, tvb, offset + 4, length, ENC_NA); + break; + case BGP_NLRI_TLV_LINK_NAME_ATTRIBUTE: + tlv_item = proto_tree_add_item(tree, hf_bgp_ls_tlv_link_name_attribute, tvb, offset, length+4, ENC_NA); + tlv_tree = proto_item_add_subtree(tlv_item, ett_bgp_link_state); + proto_tree_add_item(tlv_tree, hf_bgp_ls_type, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_tlv_link_name_attribute_value, tvb, offset + 4, length, ENC_ASCII|ENC_NA); + break; + case BGP_NLRI_TLV_IGP_FLAGS: + tlv_item = proto_tree_add_item(tree, hf_bgp_ls_tlv_igp_flags, tvb, offset, length+4, ENC_NA); + tlv_tree = proto_item_add_subtree(tlv_item, ett_bgp_link_state); + if(length != BGP_NLRI_TLV_LEN_IGP_FLAGS){ + expert_add_info_format(pinfo, tlv_tree, &ei_bgp_ls_error, "Unexpected IGP Flags TLV's length (%u), it must be %u bytes!", + length, BGP_NLRI_TLV_IGP_FLAGS); + break; + } + proto_tree_add_item(tlv_tree, hf_bgp_ls_type, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN); + tmp8 = tvb_get_guint8(tvb, offset + 4); + proto_tree_add_boolean(tlv_tree, hf_bgp_ls_igp_flags_flag_d, tvb, offset + 4, 1, tmp8); + tmp8 &= 0x7F; + if(tmp8){ + expert_add_info_format(pinfo, tlv_tree, &ei_bgp_ls_error, "Reserved flags are not set to zero (%u).", tmp8); + } + break; + case BGP_NLRI_TLV_ROUTE_TAG: + tlv_item = proto_tree_add_item(tree, hf_bgp_ls_tlv_route_tag, tvb, offset, length+4, ENC_NA); + tlv_tree = proto_item_add_subtree(tlv_item, ett_bgp_link_state); + if(length % 4 != 0) { + expert_add_info_format(pinfo, tlv_tree, &ei_bgp_ls_error, "Unexpected Route Tag TLV's length (%u mod 4 != 0) ", + length); + break; + } + proto_tree_add_item(tlv_tree, hf_bgp_ls_type, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN); + tmp16 = length; + n = 0; + while(tmp16){ + if(tmp16 < 4) { + expert_add_info_format(pinfo, tlv_tree, &ei_bgp_ls_error, "Route Tag must be 4 bytes long (%u).", tmp16); + break; + } + proto_tree_add_item(tlv_tree, hf_bgp_ls_tlv_route_tag_value, tvb, offset + 4 + (n * 4), 4, ENC_BIG_ENDIAN); + tmp16 -= 4; + n++; + } + break; + case BGP_NLRI_TLV_EXTENDED_TAG: + tlv_item = proto_tree_add_item(tree, hf_bgp_ls_tlv_route_extended_tag, tvb, offset, length+4, ENC_NA); + tlv_tree = proto_item_add_subtree(tlv_item, ett_bgp_link_state); + if(length % 8 != 0) { + expert_add_info_format(pinfo, tlv_tree, &ei_bgp_ls_error, "Unexpected Route Extended Tag TLV's length (%u mod 8 != 0) ", + length); + break; + } + proto_tree_add_item(tlv_tree, hf_bgp_ls_type, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN); + tmp16 = length; + n = 0; + while(tmp16){ + if(tmp16 < 8) { + expert_add_info_format(pinfo, tlv_tree, &ei_bgp_ls_error, "Route Extended Tag must be 8 bytes long (%u).", tmp16); + break; + } + proto_tree_add_item(tlv_tree, hf_bgp_ls_tlv_route_extended_tag_value, tvb, offset + 4 + (n * 8), 8, ENC_BIG_ENDIAN); + tmp16 -= 8; + n++; + } + break; + case BGP_NLRI_TLV_PREFIX_METRIC: + tlv_item = proto_tree_add_item(tree, hf_bgp_ls_tlv_prefix_metric, tvb, offset, length+4, ENC_NA); + tlv_tree = proto_item_add_subtree(tlv_item, ett_bgp_link_state); + if(length != BGP_NLRI_TLV_LEN_PREFIX_METRIC){ + expert_add_info_format(pinfo, tlv_tree, &ei_bgp_ls_error, "Unexpected Prefix Metric TLV's length (%u), it must be %u bytes!", + length, BGP_NLRI_TLV_LEN_PREFIX_METRIC); + break; + } + proto_tree_add_item(tlv_tree, hf_bgp_ls_type, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_tlv_prefix_metric_value, tvb, offset + 4, 4, ENC_BIG_ENDIAN); + break; + case BGP_NLRI_TLV_OSPF_FORWARDING_ADDRESS: + tlv_item = proto_tree_add_item(tree, hf_bgp_ls_ospf_forwarding_address, tvb, offset, length+4, ENC_NA); + tlv_tree = proto_item_add_subtree(tlv_item, ett_bgp_link_state); + proto_tree_add_item(tlv_tree, hf_bgp_ls_type, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN); + if (length == 4) { + proto_tree_add_item(tlv_tree, hf_bgp_ls_ospf_forwarding_address_ipv4_address, tvb, offset + 4, length, ENC_BIG_ENDIAN); + } + else if (length == 16) { + proto_tree_add_item(tlv_tree, hf_bgp_ls_ospf_forwarding_address_ipv6_address, tvb, offset + 4, length, ENC_NA); + } + else { + expert_add_info_format(pinfo, tlv_tree, &ei_bgp_ls_error, "Unexpected Prefix Metric TLV's length (%u), it must be 4 or 16 bytes!", length); + break; + } + break; + case BGP_NLRI_TLV_OPAQUE_PREFIX_ATTRIBUTE: + tlv_item = proto_tree_add_item(tree, hf_bgp_ls_opaque_prefix_attribute, tvb, offset, length+4, ENC_NA); + tlv_tree = proto_item_add_subtree(tlv_item, ett_bgp_link_state); + proto_tree_add_item(tlv_tree, hf_bgp_ls_type, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(tlv_tree, hf_bgp_ls_opaque_prefix_attribute_value, tvb, offset + 4, length, ENC_NA); + break; + default: + expert_add_info_format(pinfo, tree, &ei_bgp_ls_error, + "Unknown Prefix Descriptor TLV Code (%u)!", type); + break; + } + return length + 4; +} + /* * Decode a multiprotocol prefix */ @@ -2096,8 +3210,14 @@ decode_prefix_MP(proto_tree *tree, int hf_addr4, int hf_addr6, int start_offset = offset; proto_item *ti; proto_tree *prefix_tree; + proto_item *nlri_ti; + proto_tree *nlri_tree; + proto_item *disting_item; + proto_tree *disting_tree; + int total_length; /* length of the entire item */ int length; /* length of the prefix address, in bytes */ + int tmp_length; guint plen; /* length of the prefix address, in bits */ guint labnum; /* number of labels */ guint16 tnl_id; /* Tunnel Identifier */ @@ -2108,9 +3228,13 @@ decode_prefix_MP(proto_tree *tree, int hf_addr4, int hf_addr6, } ip4addr, ip4addr2; /* IPv4 address */ struct e_in6_addr ip6addr; /* IPv6 address */ guint16 rd_type; /* Route Distinguisher type */ + guint16 nlri_type; /* NLRI Type */ + guint16 tmp16; + wmem_strbuf_t *stack_strbuf; /* label stack */ wmem_strbuf_t *comm_strbuf; + switch (afi) { case AFNUM_INET: @@ -2746,6 +3870,199 @@ decode_prefix_MP(proto_tree *tree, int hf_addr4, int hf_addr6, return -1; } /* switch (safi) */ break; + case AFNUM_LINK_STATE: + + nlri_type = tvb_get_ntohs(tvb, offset); + total_length = tvb_get_ntohs(tvb, offset + 2); + length = total_length; + total_length += 4; + + if (safi == SAFNUM_LINK_STATE) { + ti = proto_tree_add_item(tree, hf_bgp_ls_safi72_nlri, tvb, offset, total_length , ENC_NA); + } else if (safi == SAFNUM_LAB_VPNUNICAST) { + ti = proto_tree_add_item(tree, hf_bgp_ls_safi128_nlri, tvb, offset, total_length , ENC_NA); + } else + return -1; + + prefix_tree = proto_item_add_subtree(ti, ett_bgp_mp_reach_nlri); + proto_tree_add_item(prefix_tree, hf_bgp_ls_nlri_type, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(prefix_tree, hf_bgp_ls_nlri_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN); + offset += 4; + + /* when SAFI 128, then write route distinguisher */ + if (safi == SAFNUM_LAB_VPNUNICAST) { + if (length < BGP_ROUTE_DISTINGUISHER_SIZE) { + if (length == 0) { + expert_add_info_format(pinfo, prefix_tree, &ei_bgp_ls_error, + "Unexpected end of SAFI 128 NLRI, Route Distinguisher field is required!"); + } + if (length > 0) { + expert_add_info_format(pinfo, prefix_tree, &ei_bgp_ls_error, + "Unexpected Route Distinguisher length (%u)!", + length); + } + break; + } + disting_item = proto_tree_add_item(prefix_tree, hf_bgp_ls_safi128_nlri_route_distinguisher, + tvb, offset, BGP_ROUTE_DISTINGUISHER_SIZE, ENC_NA); + disting_tree = proto_item_add_subtree(disting_item, ett_bgp_mp_reach_nlri); + tmp16 = tvb_get_ntohs(tvb, offset); + proto_tree_add_item(disting_tree, hf_bgp_ls_safi128_nlri_route_distinguisher_type, + tvb, offset, 2, ENC_BIG_ENDIAN); + /* Route Distinguisher Type */ + switch (tmp16) { + case 0: + proto_tree_add_item(disting_tree, hf_bgp_ls_safi128_nlri_route_dist_admin_asnum_2, + tvb, offset + 2, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(disting_tree, hf_bgp_ls_safi128_nlri_route_dist_asnum_4, + tvb, offset + 4, 4, ENC_BIG_ENDIAN); + break; + + case 1: + proto_tree_add_item(disting_tree, hf_bgp_ls_safi128_nlri_route_dist_admin_ipv4, + tvb, offset + 2, 4, ENC_BIG_ENDIAN); + proto_tree_add_item(disting_tree, hf_bgp_ls_safi128_nlri_route_dist_asnum_2, + tvb, offset + 6, 2, ENC_BIG_ENDIAN); + break; + + case 2: + proto_tree_add_item(disting_tree, hf_bgp_ls_safi128_nlri_route_dist_admin_asnum_4, + tvb, offset + 2, 4, ENC_BIG_ENDIAN); + proto_tree_add_item(disting_tree, hf_bgp_ls_safi128_nlri_route_dist_asnum_2, + tvb, offset + 6, 2, ENC_BIG_ENDIAN); + break; + + default: + expert_add_info_format(pinfo, disting_tree, &ei_bgp_ls_error, + "Unknown Route Distinguisher type (%u)", tmp16); + } + offset += BGP_ROUTE_DISTINGUISHER_SIZE; + length -= BGP_ROUTE_DISTINGUISHER_SIZE; + } + + switch (nlri_type) { + case LINK_STATE_LINK_NLRI: + + nlri_ti = proto_tree_add_item(prefix_tree, + hf_bgp_ls_nlri_link_nlri_type, tvb, offset, length, + ENC_NA); + nlri_tree = proto_item_add_subtree(nlri_ti, ett_bgp_mp_reach_nlri); + tmp_length = decode_bgp_link_node_nlri_common_fields(tvb, nlri_tree, + offset, pinfo, length); + if (tmp_length < 1) + return -1; + + offset += tmp_length; + length -= tmp_length; + + /* dissect Remote Node descriptors TLV */ + if (length > 0 && length < 4) { + expert_add_info_format(pinfo, nlri_tree, &ei_bgp_ls_error, + "Unknown data in Link-State Link NLRI!"); + break; + } + if (length < 1) + break; + + tmp_length = decode_bgp_link_node_nlri_tlvs(tvb, nlri_tree, offset, + pinfo, BGP_NLRI_TLV_REMOTE_NODE_DESCRIPTORS); + if (tmp_length < 1) + return -1; + + offset += tmp_length; + length -= tmp_length; + + /* dissect Link Descriptor NLRI */ + if (length > 0 && length < 4) { + expert_add_info_format(pinfo, nlri_tree, &ei_bgp_ls_error, + "Unknown data in Link-State Link NLRI, length = %d bytes.", length); + break; + } + if (length < 1) + break; + + tmp_length = decode_bgp_link_nlri_link_descriptors(tvb, nlri_tree, + offset, pinfo, length); + if (tmp_length < 1) + return -1; + + break; + + case LINK_STATE_NODE_NLRI: + nlri_ti = proto_tree_add_item(prefix_tree, + hf_bgp_ls_nlri_node_nlri_type, tvb, offset, length, + ENC_NA); + nlri_tree = proto_item_add_subtree(nlri_ti, ett_bgp_mp_reach_nlri); + tmp_length = decode_bgp_link_node_nlri_common_fields(tvb, nlri_tree, + offset, pinfo, length); + if (tmp_length < 1) + return -1; + + break; + + case LINK_STATE_IPV4_TOPOLOGY_PREFIX_NLRI: + nlri_ti = proto_tree_add_item(prefix_tree, + hf_bgp_ls_ipv4_topology_prefix_nlri_type, tvb, offset, length, + ENC_NA); + nlri_tree = proto_item_add_subtree(nlri_ti, ett_bgp_mp_reach_nlri); + tmp_length = decode_bgp_link_node_nlri_common_fields(tvb, nlri_tree, + offset, pinfo, length); + if (tmp_length < 1) + return -1; + + offset += tmp_length; + length -= tmp_length; + + /* dissect Prefix Descriptors NLRI */ + if (length > 0 && length < 4) { + expert_add_info_format(pinfo, nlri_tree, &ei_bgp_ls_error, + "Unknown data in Link-State Link NLRI, length = %d bytes.", length); + break; + } + if (length < 1) + break; + + tmp_length = decode_bgp_link_nlri_prefix_descriptors(tvb, nlri_tree, + offset, pinfo, length); + if (tmp_length < 1) + return -1; + + break; + + case LINK_STATE_IPV6_TOPOLOGY_PREFIX_NLRI: + nlri_ti = proto_tree_add_item(prefix_tree, + hf_bgp_ls_ipv6_topology_prefix_nlri_type, tvb, offset, length, + ENC_NA); + nlri_tree = proto_item_add_subtree(nlri_ti, ett_bgp_mp_reach_nlri); + tmp_length = decode_bgp_link_node_nlri_common_fields(tvb, nlri_tree, + offset, pinfo, length); + if (tmp_length < 1) + return -1; + + offset += tmp_length; + length -= tmp_length; + + /* dissect Prefix Descriptors NLRI */ + if (length > 0 && length < 4) { + expert_add_info_format(pinfo, nlri_tree, &ei_bgp_ls_error, + "Unknown data in Link-State Link NLRI!"); + break; + } + if (length < 1) + break; + + tmp_length = decode_bgp_link_nlri_prefix_descriptors(tvb, nlri_tree, + offset, pinfo, length); + if (tmp_length < 1) + return -1; + + break; + + default: + proto_tree_add_text(tree, tvb, start_offset, 0, + "Unknown Link-State NLRI type (%u)", afi); + } + break; default: proto_tree_add_text(tree, tvb, start_offset, 0, @@ -3597,6 +4914,7 @@ dissect_bgp_update(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo) case AFNUM_INET6: case AFNUM_L2VPN: case AFNUM_L2VPN_OLD: + case AFNUM_LINK_STATE: j = 0; while (j < nexthop_len) { @@ -3644,7 +4962,7 @@ dissect_bgp_update(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo) tlen, plurality(tlen, "", "s")); if (tlen) { subtree3 = proto_item_add_subtree(ti,ett_bgp_mp_reach_nlri); - if (af != AFNUM_INET && af != AFNUM_INET6 && af != AFNUM_L2VPN) { + if (af != AFNUM_INET && af != AFNUM_INET6 && af != AFNUM_L2VPN && af != AFNUM_LINK_STATE) { proto_tree_add_text(subtree3, tvb, o + i + aoff, tlen, "Unknown Address Family"); } else { @@ -4056,6 +5374,22 @@ dissect_bgp_update(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo) } break; + case BGPTYPE_LINK_STATE_ATTR: + + q = o + i + aoff; + end = o + i + aoff + tlen; + + ti = proto_tree_add_item(subtree2, hf_bgp_update_path_attribute_link_state, tvb, q, tlen, ENC_NA); + subtree3 = proto_item_add_subtree(ti, ett_bgp_link_state); + + while (q < end) { + advance = decode_link_state_attribute_tlv(subtree3, tvb, q, pinfo); + if (advance < 0) + break; + + q += advance; + } + break; default: proto_tree_add_text(subtree2, tvb, o + i + aoff, tlen, @@ -4859,6 +6193,9 @@ proto_register_bgp(void) { &hf_bgp_update_path_attribute_length, { "Length", "bgp.update.path_attribute.length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_update_path_attribute_link_state, + { "Link State", "bgp.update.path_attribute.link_state", FT_NONE, BASE_NONE, + NULL, 0x0, NULL, HFILL}}, /* RFC4456 */ { &hf_bgp_update_path_attribute_originator_id, @@ -5196,6 +6533,330 @@ proto_register_bgp(void) { &hf_bgp_ext_com_l2_mtu, { "Layer-2 MTU", "bgp.ext_com_l2.l2_mtu", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL}}, + /* idr-ls-03 */ + { &hf_bgp_ls_type, + { "Type", "bgp.ls.type", FT_UINT16, BASE_DEC, + NULL, 0x0, "BGP-LS message type", HFILL }}, + { &hf_bgp_ls_length, + { "Length", "bgp.ls.length", FT_UINT16, BASE_DEC, + NULL, 0x0, "The total length of the message payload in octets", HFILL }}, + { &hf_bgp_ls_safi72_nlri, + { "Link State SAFI 72 NLRI", "bgp.ls.nlri_safi72", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_safi128_nlri, + { "Link State SAFI 128 NLRI", "bgp.ls.nlri_safi128", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_safi128_nlri_route_distinguisher, + { "Route Distinguisher", "bgp.ls.nlri_safi128_route_distinguisher", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_safi128_nlri_route_distinguisher_type, + { "Route Distinguisher Type", "bgp.ls.nlri_safi128_route_distinguisher_type", FT_UINT16, + BASE_DEC, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_safi128_nlri_route_dist_admin_asnum_2, + { "Administrator Subfield", "bgp.ls.nlri_safi128_route_distinguisher_admin_as_num_2", FT_UINT16, + BASE_DEC, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_safi128_nlri_route_dist_admin_ipv4, + { "Administrator Subfield", "bgp.ls.nlri_safi128_route_distinguisher_admin_ipv4", FT_IPv4, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_safi128_nlri_route_dist_admin_asnum_4, + { "Administrator Subfield", "bgp.ls.nlri_safi128_route_distinguisher_admin_as_num_4", FT_UINT32, + BASE_HEX_DEC, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_safi128_nlri_route_dist_asnum_2, + { "Assigned Number Subfield", "bgp.ls.nlri_safi128_route_distinguisher_asnum_2", FT_UINT16, + BASE_DEC, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_safi128_nlri_route_dist_asnum_4, + { "Assigned Number Subfield", "bgp.ls.nlri_safi128_route_distinguisher_asnum_4", FT_UINT32, + BASE_HEX_DEC, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_nlri_type, + { "NLRI Type", "bgp.ls.nlri_type", FT_UINT16, + BASE_DEC, VALS(bgp_ls_nlri_type_vals), 0x0, NULL, HFILL}}, + { &hf_bgp_ls_nlri_length, + { "NLRI Length", "bgp.ls.nlri_length", FT_UINT16, + BASE_DEC, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_nlri_link_nlri_type, + { "Link-State NLRI Link NLRI", "bgp.ls.nlri_link", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_nlri_link_descriptors_tlv, + { "Link Descriptors TLV", "bgp.ls.nlri_link_descriptors_tlv", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_nlri_prefix_descriptors_tlv, + { "Prefix Descriptors TLV", "bgp.ls.nlri_prefix_descriptors_tlv", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_nlri_link_local_identifier, + { "Link Local Identifier", "bgp.ls.nlri_link_local_identifier", FT_UINT32, + BASE_HEX_DEC, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_nlri_link_remote_identifier, + { "Link Remote Identifier", "bgp.ls.nlri_link_remote_identifier", FT_UINT32, + BASE_HEX_DEC, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_nlri_ipv4_interface_address, + { "IPv4 Interface Address", "bgp.ls.nlri_ipv4_interface_address", FT_IPv4, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_nlri_ipv4_neighbor_address, + { "IPv4 Neighbor Address", "bgp.ls.nlri_ipv4_neighbor_address", FT_IPv4, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_nlri_ipv6_interface_address, + { "IPv6 Interface Address", "bgp.ls.nlri_ipv6_interface_address", FT_IPv6, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_nlri_ipv6_neighbor_address, + { "IPv6 Neighbor Address", "bgp.ls.nlri_ipv6_neighbor_address", FT_IPv6, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_nlri_multi_topology_id, + { "Multi Topology ID", "bgp.ls.nlri_multi_topology_id", FT_UINT16, + BASE_DEC_HEX, NULL, 0xfff, NULL, HFILL}}, + { &hf_bgp_ls_nlri_ospf_route_type, + { "OSPF Route Type", "bgp.ls.nlri_ospf_route_type", FT_UINT8, + BASE_DEC, VALS(link_state_prefix_descriptors_ospf_route_type), 0x0, NULL, HFILL}}, + { &hf_bgp_ls_nlri_ip_reachability_prefix_length, + { "Prefix Length in bits", "bgp.ls.nlri_ip_reachability_prefix_length", FT_UINT8, + BASE_DEC, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_nlri_ip_reachability_prefix_ip, + { "Prefix IP", "bgp.ls.nlri_ip_reachability_prefix_ip", FT_BYTES, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_nlri_node_nlri_type, + { "Link-State NLRI Node NLRI", "bgp.ls.nlri_node", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_nlri_node_protocol_id, + { "Protocol ID", "bgp.ls.nlri_node.protocol_id", FT_UINT8, + BASE_DEC, VALS(link_state_nlri_protocol_id_values), 0x0, NULL, HFILL }}, + { &hf_bgp_ls_nlri_node_identifier, + { "Identifier", "bgp.ls.nlri_node.identifier", FT_UINT64, + BASE_DEC | BASE_VAL64_STRING, VALS(link_state_nlri_routing_universe_values), 0x0, NULL, HFILL }}, + { &hf_bgp_ls_ipv4_topology_prefix_nlri_type, + { "Link-State NLRI IPv4 Topology Prefix", "bgp.ls.ipv4_topology_prefix", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_ipv6_topology_prefix_nlri_type, + { "Link-State NLRI IPv6 Topology Prefix", "bgp.ls.ipv6_topology_prefix", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + /* NLRI TLVs */ + { &hf_bgp_ls_tlv_local_node_descriptors, + { "Local Node Descriptors TLV", "bgp.ls.tlv.local_node_descriptors", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_remote_node_descriptors, + { "Remote Node Descriptors TLV", "bgp.ls.tlv.remote_node_descriptors", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_autonomous_system, + { "Autonomous System TLV", "bgp.ls.tlv.autonomous_system", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_autonomous_system_id, + { "AS ID", "bgp.ls.tlv.autonomous_system.id", FT_UINT32, + BASE_DEC_HEX, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_bgp_ls_identifier, + { "BGP-LS Identifier TLV", "bgp.ls.tlv.bgp_ls_identifier", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_bgp_ls_identifier_id, + { "BGP-LS ID", "bgp.ls.tlv.bgp_ls_identifier_id", FT_UINT32, + BASE_DEC_HEX, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_area_id, + { "Area ID TLV", "bgp.ls.tlv.area_id", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_area_id_id, + { "Area ID", "bgp.ls.tlv.area_id.id", FT_UINT32, + BASE_DEC_HEX, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_ipv4_router_id_of_local_node, + { "IPv4 Router-ID of Local Node TLV", "bgp.ls.tlv.ipv4_router_id_of_local_node", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL }}, + { &hf_bgp_ls_tlv_ipv4_router_id_value, + { "IPv4 Router-ID", "bgp.ls.tlv.ipv4_router_id_value", FT_IPv4, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_ipv6_router_id_of_local_node, + { "IPv6 Router-ID of Local Node TLV", "bgp.ls.tlv.ipv6_router_id_of_local_node", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL }}, + { &hf_bgp_ls_tlv_ipv6_router_id_value, + { "IPv6 Router-ID", "bgp.ls.tlv.ipv6_router_id_of_local_node_value", FT_IPv6, + BASE_NONE, NULL, 0x0, NULL, HFILL }}, + { &hf_bgp_ls_tlv_ipv4_router_id_of_remote_node, + { "IPv4 Router-ID of Remote Node TLV", "bgp.ls.tlv.ipv4_router_id_of_remote_node", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL }}, + { &hf_bgp_ls_tlv_ipv6_router_id_of_remote_node, + { "IPv6 Router-ID of Remote Node TLV", "bgp.ls.tlv.ipv6_router_id_of_remote_node", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL }}, + { &hf_bgp_ls_tlv_link_local_remote_identifiers, + { "Link Local/Remote Identifiers TLV", "bgp.ls.tlv.link_local_remote_identifiers", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL }}, + { &hf_bgp_ls_tlv_ipv4_interface_address, + { "IPv4 interface address TLV", "bgp.ls.tlv.ipv4_interface_address", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL }}, + { &hf_bgp_ls_tlv_ipv4_neighbor_address, + { "IPv4 neighbor address TLV", "bgp.ls.tlv.ipv4_neighbor_address", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_ipv6_interface_address, + { "IPv6 interface address TLV", "bgp.ls.tlv.ipv6_interface_address", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_ipv6_neighbor_address, + { "IPv6 neighbor address TLV", "bgp.ls.tlv.ipv6_neighbor_address", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_multi_topology_id, + { "Multi Topology ID TLV", "bgp.ls.tlv.multi_topology_id", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_ospf_route_type, + { "OSPF Route Type TLV", "bgp.ls.tlv.ospf_route_type", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_ip_reachability_information, + { "IP Reachability Information TLV", "bgp.ls.tlv.ip_reachability_information", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_administrative_group_color, + { "Administrative group (color) TLV", "bgp.ls.tlv.administrative_group_color", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_administrative_group_color_value, + { "Group Mask", "bgp.ls.tlv.administrative_group_color", FT_UINT32, + BASE_DEC, NULL, 0xffff, NULL, HFILL}}, + { &hf_bgp_ls_tlv_max_link_bandwidth, + { "Maximum link bandwidth TLV", "bgp.ls.tlv.maximum_link_bandwidth", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_max_reservable_link_bandwidth, + { "Maximum reservable link bandwidth TLV", "bgp.ls.tlv.maximum_reservable_link_bandwidth", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_unreserved_bandwidth, + { "Unreserved bandwidth TLV", "bgp.ls.tlv.unreserved_bandwidth", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_bandwidth_value, + {"Bandwidth", "bgp.ls.bandwidth_value", FT_FLOAT, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_te_default_metric, + { "TE Default Metric TLV", "bgp.ls.tlv.te_default_metric", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_te_default_metric_value, + { "TE Default Metric", "bgp.ls.tlv.te_default_metric_value", FT_UINT24, + BASE_HEX_DEC, NULL, 0x0, NULL, HFILL }}, + { &hf_bgp_ls_tlv_link_protection_type, + { "Link Protection Type TLV", "bgp.ls.tlv.link_protection_type", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_link_protection_type_value, + { "Protection Capabilities", "bgp.ls.tlv.link_protection_type_value", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_mpls_protocol_mask, + { "MPLS Protocol Mask TLV", "bgp.ls.tlv.mpls_protocol_mask", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_metric, + { "Metric TLV", "bgp.ls.tlv.metric", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_metric_value, + { "IGP Metric", "bgp.ls.tlv.metric_value", FT_UINT24, + BASE_HEX_DEC, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_shared_risk_link_group, + { "Shared Risk Link Group TLV", "bgp.ls.tlv.shared_risk_link_group", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_shared_risk_link_group_value, + { "Shared Risk Link Group Value", "bgp.ls.tlv.shared_risk_link_group_value", FT_UINT32, + BASE_HEX_DEC, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_opaque_link_attribute, + { "Opaque Link Attribute TLV", "bgp.ls.tlv.opaque_link_attribute", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_opaque_link_attribute_value, + { "Opaque link attributes", "bgp.ls.tlv.opaque_link_attribute_value", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_link_name_attribute, + { "Opaque Link Attribute TLV", "bgp.ls.tlv.link_name_attribute", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_link_name_attribute_value, + {"Link Name", "bgp.ls.tlv.link_name_attribute_value", FT_STRING, + STR_ASCII, NULL, 0, NULL, HFILL }}, + { &hf_bgp_ls_tlv_igp_flags, + { "IGP Flags TLV", "bgp.ls.tlv.igp_flags", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_route_tag, + { "Route Tag TLV", "bgp.ls.tlv.route_tag", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_route_tag_value, + { "Route Tag Value", "bgp.ls.tlv.route_tag_value", FT_UINT32, + BASE_HEX_DEC, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_route_extended_tag, + { "Extended Route Tag TLV", "bgp.ls.tlv.route_extended_tag", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_route_extended_tag_value, + {"Extended Route Tag", "bgp.ls.tlv.extended_route_tag_value", FT_UINT64, + BASE_HEX_DEC, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_prefix_metric, + { "Prefix Metric TLV", "bgp.ls.tlv.prefix_metric", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_prefix_metric_value, + { "Prefix Metric", "bgp.ls.tlv.prefix_metric_value", FT_UINT32, + BASE_HEX_DEC, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_ospf_forwarding_address, + { "OSPF Forwarding Address TLV", "bgp.ls.tlv.ospf_forwarding_address", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_ospf_forwarding_address_ipv4_address, + { "OSPF forwarding IPv4 address", "bgp.ls.tlv.ospf_forwarding_address_ipv4", FT_IPv4, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_ospf_forwarding_address_ipv6_address, + { "OSPF forwarding IPv6 address", "bgp.ls.tlv.ospf_forwarding_address_ipv6", FT_IPv6, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_opaque_prefix_attribute, + { "Opaque Prefix Attribute TLV", "bgp.ls.tlv.opaque_prefix_attribute", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_opaque_prefix_attribute_value, + { "Opaque prefix attributes", "bgp.ls.tlv.opaque_prefix_attribute_value", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_igp_router, + { "IGP Router-ID", "bgp.ls.tlv.igp_router", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_igp_router_id, + { "IGP ID", "bgp.ls.tlv.igp_router_id", FT_BYTES, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_node_flags_bits, + { "Node Flags Bits TLV", "bgp.ls.tlv.node_flags_bits", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_opaque_node_properties, + { "Opaque Node Properties TLV", "bgp.ls.tlv.opaque_node_properties", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_opaque_node_properties_value, + { "Opaque Node Properties", "bgp.ls.tlv.opaque_node_properties_value", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_node_name, + { "Node Name TLV", "bgp.ls.tlv.node_name", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_node_name_value, + {"Node name", "bgp.ls.tlv.node_name_value", FT_STRING, + STR_ASCII, NULL, 0, NULL, HFILL }}, + { &hf_bgp_ls_tlv_is_is_area_identifier, + { "IS-IS Area Identifier TLV", "bgp.ls.tlv.is_is_area_identifier", FT_NONE, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + { &hf_bgp_ls_tlv_is_is_area_identifier_value, + { "IS-IS Area Identifier", "bgp.ls.tlv.is_is_area_identifier_value", FT_BYTES, + BASE_NONE, NULL, 0x0, NULL, HFILL}}, + /* Link Protection Types */ + { &hf_bgp_ls_link_protection_type_enhanced, + { "Enhanced", "bgp.ls.link_protection_type.enhanced", FT_BOOLEAN, 8, + TFS(&tfs_capable_not_capable), 0x20, NULL, HFILL }}, + { &hf_bgp_ls_link_protection_type_dedicated_1plus1, + { "Dedicated 1+1", "bgp.ls.link_protection_type.dedicated_1plus1", FT_BOOLEAN, 8, + TFS(&tfs_capable_not_capable), 0x10, NULL, HFILL }}, + { &hf_bgp_ls_link_protection_type_dedicated_1to1, + { "Dedicated 1:1", "bgp.ls.link_protection_type.dedicated_1colon1", FT_BOOLEAN, 8, + TFS(&tfs_capable_not_capable), 0x08, NULL, HFILL }}, + { &hf_bgp_ls_link_protection_type_shared, + { "Shared", "bgp.ls.link_protection_type.shared", FT_BOOLEAN, 8, + TFS(&tfs_capable_not_capable), 0x04, NULL, HFILL }}, + { &hf_bgp_ls_link_protection_type_unprotected, + { "Unprotected", "bgp.ls.link_protection_type.unprotected", FT_BOOLEAN, 8, + TFS(&tfs_capable_not_capable), 0x02, NULL, HFILL }}, + { &hf_bgp_ls_link_protection_type_extra_traffic, + { "Extra Traffic", "bgp.ls.link_protection_type.extra_traffic", FT_BOOLEAN, 8, + TFS(&tfs_capable_not_capable), 0x01, NULL, HFILL }}, + /* MPLS Protocol Mask flags */ + { &hf_bgp_ls_mpls_protocol_mask_flag_l, + { "Label Distribution Protocol (LDP)", "bgp.ls.protocol_mask_tlv.mpls_protocol.l", FT_BOOLEAN, 8, + TFS(&tfs_set_notset), 0x80, NULL, HFILL}}, + { &hf_bgp_ls_mpls_protocol_mask_flag_r, + { "Extension to RSVP for LSP Tunnels (RSVP-TE)", "bgp.ls.protocol_mask_tlv.mpls_protocol.r", FT_BOOLEAN, 8, + TFS(&tfs_set_notset), 0x40, NULL, HFILL}}, + /* IGP Flags TLV */ + { &hf_bgp_ls_igp_flags_flag_d, + { "IS-IS Up/Down Bit", "bgp.ls.protocol_mask_tlv.igp_flags_flag_d.d", FT_BOOLEAN, 8, + TFS(&tfs_set_notset), 0x80, NULL, HFILL}}, + /* Node Flag Bits TLV flags */ + { &hf_bgp_ls_node_flag_bits_overload, + { "Overload Bit", "bgp.ls.node_flag_bits.overload", FT_BOOLEAN, 8, + TFS(&tfs_set_notset), 0x80, NULL, HFILL}}, + { &hf_bgp_ls_node_flag_bits_attached, + { "Attached Bit", "bgp.ls.node_flag_bits.attached", FT_BOOLEAN, 8, + TFS(&tfs_set_notset), 0x40, NULL, HFILL}}, + { &hf_bgp_ls_node_flag_bits_external, + { "External Bit", "bgp.ls.node_flag_bits.external", FT_BOOLEAN, 8, + TFS(&tfs_set_notset), 0x20, NULL, HFILL}}, + { &hf_bgp_ls_node_flag_bits_abr, + { "ABR Bit", "bgp.ls.node_flag_bits.abr", FT_BOOLEAN, 8, + TFS(&tfs_set_notset), 0x10, NULL, HFILL}}, }; static gint *ett[] = { @@ -5241,6 +6902,7 @@ proto_register_bgp(void) &ett_bgp_tunnel_tlv_subtree, &ett_bgp_tunnel_subtlv, &ett_bgp_tunnel_subtlv_subtree, + &ett_bgp_link_state, }; static ei_register_info ei[] = { { &ei_bgp_cap_len_bad, { "bgp.cap.length.bad", PI_MALFORMED, PI_ERROR, "Capability length is wrong", EXPFILL }}, @@ -5249,6 +6911,7 @@ proto_register_bgp(void) { &ei_bgp_route_refresh_orf_type_unknown, { "bgp.route_refresh.orf.type.unknown", PI_CHAT, PI_ERROR, "ORFEntry-Unknown", EXPFILL }}, { &ei_bgp_length_invalid, { "bgp.length.invalid", PI_MALFORMED, PI_ERROR, "Length is invalid", EXPFILL }}, { &ei_bgp_afi_type_not_supported, { "bgp.afi_type_not_supported", PI_PROTOCOL, PI_ERROR, "AFI Type not supported", EXPFILL }}, + { &ei_bgp_ls_error, { "bgp.ls.error", PI_PROTOCOL, PI_ERROR, "Link State error", EXPFILL }}, }; module_t *bgp_module; |