/* packet-isis-lsp.c * Routines for decoding isis lsp packets and their CLVs * * Stuart Stanley * * Wireshark - Network traffic analyzer * By Gerald Combs * Copyright 1998 Gerald Combs * * SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright 2011, Malgi Nikitha Vivekananda * Krishnamurthy Mayya * - Decoding for Router Capability TLV and associated subTLVs as per RFC 6326 * - Decoding for Group Address TLV and associated subTLVs as per RFC 6326 * * Copyright 2019, Rohan Saini * - Support for dissecting BIER Info Sub-TLV (RFC 8401) */ #include "config.h" #include #include #include "packet-osi.h" #include "packet-isis.h" #include "packet-isis-clv.h" #include #include /* * Declarations for L1/L2 LSP base header. */ /* P | ATT | HIPPITY | DS FIELD description */ #define ISIS_LSP_PARTITION_MASK 0x80 #define ISIS_LSP_PARTITION_SHIFT 7 #define ISIS_LSP_PARTITION(info) (((info) & ISIS_LSP_PARTITION_MASK) >> ISIS_LSP_PARTITION_SHIFT) #define ISIS_LSP_ATT_MASK 0x78 #define ISIS_LSP_ATT_SHIFT 3 #define ISIS_LSP_ATT(info) (((info) & ISIS_LSP_ATT_MASK) >> ISIS_LSP_ATT_SHIFT) #define ISIS_LSP_ATT_ERROR(info) ((info) >> 3) #define ISIS_LSP_ATT_EXPENSE(info) (((info) >> 2) & 1) #define ISIS_LSP_ATT_DELAY(info) (((info) >> 1) & 1) #define ISIS_LSP_ATT_DEFAULT(info) ((info) & 1) #define ISIS_LSP_HIPPITY_MASK 0x04 #define ISIS_LSP_HIPPITY_SHIFT 2 #define ISIS_LSP_HIPPITY(info) (((info) & ISIS_LSP_HIPPITY_MASK) >> ISIS_LSP_HIPPITY_SHIFT) #define ISIS_LSP_IS_TYPE_MASK 0x03 #define ISIS_LSP_IS_TYPE(info) ((info) & ISIS_LSP_IS_TYPE_MASK) #define ISIS_LSP_MT_MSHIP_RES_MASK 0xF000 #define ISIS_LSP_MT_MSHIP_ID_MASK 0x0FFF #define ISIS_LSP_TYPE_UNUSED0 0 #define ISIS_LSP_TYPE_LEVEL_1 1 #define ISIS_LSP_TYPE_UNUSED2 2 #define ISIS_LSP_TYPE_LEVEL_2 3 #define ISIS_LSP_ATTACHED_NONE 0 #define ISIS_LSP_ATTACHED_DEFAULT 1 #define ISIS_LSP_ATTACHED_DELAY 2 #define ISIS_LSP_ATTACHED_EXPENSE 4 #define ISIS_LSP_ATTACHED_ERROR 8 /* * The "supported" bit in a metric is actually the "not supported" bit; * if it's *clear*, the metric is supported, and if it's *set*, the * metric is not supported. */ #define ISIS_LSP_CLV_METRIC_SUPPORTED(x) (!((x)&0x80)) #define ISIS_LSP_CLV_METRIC_IE(x) ((x)&0x40) #define ISIS_LSP_CLV_METRIC_RESERVED(x) ((x)&0x40) #define ISIS_LSP_CLV_METRIC_UPDOWN(x) ((x)&0x80) #define ISIS_LSP_CLV_METRIC_VALUE(x) ((x)&0x3f) /* Sub-TLVs under Router Capability and MT Capability TLVs As per RFC 7176 section 2.3 http://www.iana.org/assignments/isis-tlv-codepoints/isis-tlv-codepoints.xhtml#isis-tlv-codepoints-242 */ #define ISIS_TE_NODE_CAP_DESC 1 #define SEGMENT_ROUTING_CAP 2 /* draft-ietf-isis-segment-routing-extensions-03 */ #define NICKNAME 6 #define TREES 7 #define TREE_IDENTIFIER 8 #define TREES_USED_IDENTIFIER 9 #define INTERESTED_VLANS 10 #define IPV6_TE_ROUTER_ID 12 #define TRILL_VERSION 13 #define VLAN_GROUP 14 #define SEGMENT_ROUTING_ALG 19 #define SEGMENT_ROUTING_LB 22 #define NODE_MSD 23 /* rfc8491 */ #define SRV6_CAP 25 #define FLEX_ALGO_DEF 26 /* draft-ietf-lsr-flex-algo-16 */ /*Sub-TLVs under Group Address TLV*/ #define GRP_MAC_ADDRESS 1 #define GRP_IPV4_ADDRESS 2 #define GRP_IPV6_ADDRESS 3 /* sub-TLV's under SID/Label binding TLV */ #define ISIS_LSP_SL_SUB_SID_LABEL 1 #define ISIS_LSP_SL_SUB_PREFIX_SID 3 #define ISIS_LSP_SL_SUB_ADJ_SID 31 #define ISIS_LSP_SL_SUB_LAN_ADJ_SID 32 /* Segment Routing Sub-TLV */ #define ISIS_SR_SID_LABEL 1 /* From: https://www.iana.org/assignments/igp-parameters/igp-parameters.xhtml IGP Algorithm Types */ #define ISIS_ALG_SPF 0 #define ISIS_ALG_SSPF 1 /* IGP MSD Type (rfc8491) */ #define IGP_MSD_TYPE_RESERVED 0 #define IGP_MSD_TYPE_MPLS 1 #define IGP_MSD_TYPE_SEGMENT_LEFT 41 #define IGP_MSD_TYPE_END_POP 42 #define IGP_MSD_TYPE_T_INSERT 43 #define IGP_MSD_TYPE_T_ENCAP 44 #define IGP_MSD_TYPE_END_D 45 /* Flex Algo Definition Sub-TLV (draft-ietf-lsr-flex-algo-16) */ #define FAD_EXCLUDE_AG 1 #define FAD_INCLUDE_ANY_AG 2 #define FAD_INCLUDE_ALL_AG 3 #define FAD_DEF_FLAGS 4 #define FAD_EXCLUDE_SRLG 5 /* Prefix Attribute Flags Sub-TLV (rfc7794)*/ #define ISIS_LSP_PFX_ATTR_FLAG_X 0x80 #define ISIS_LSP_PFX_ATTR_FLAG_R 0x40 #define ISIS_LSP_PFX_ATTR_FLAG_N 0x20 const range_string mtid_strings[] = { { 0, 0, "Standard topology" }, { 1, 1, "IPv4 In-Band Management" }, { 2, 2, "IPv6 routing topology" }, { 3, 3, "IPv4 multicast routing topology" }, { 4, 4, "IPv6 multicast routing topology" }, { 5, 5, "IPv6 in-band management" }, { 6, 3995, "Reserved for IETF Consensus" }, { 3996, 4095, "Development, Experimental and Proprietary features" }, { 0, 0, NULL } } ; void proto_register_isis_lsp(void); void proto_reg_handoff_isis_lsp(void); static int proto_isis_lsp = -1; /* lsp packets */ static int hf_isis_lsp_pdu_length = -1; static int hf_isis_lsp_remaining_life = -1; static int hf_isis_lsp_sequence_number = -1; static int hf_isis_lsp_lsp_id = -1; static int hf_isis_lsp_hostname = -1; static int hf_isis_lsp_srlg_system_id = -1; static int hf_isis_lsp_srlg_pseudo_num = -1; static int hf_isis_lsp_srlg_flags_numbered = -1; static int hf_isis_lsp_srlg_ipv4_local = -1; static int hf_isis_lsp_srlg_ipv4_remote = -1; static int hf_isis_lsp_srlg_value = -1; static int hf_isis_lsp_checksum = -1; static int hf_isis_lsp_checksum_status = -1; static int hf_isis_lsp_clv_ipv4_int_addr = -1; static int hf_isis_lsp_clv_ipv6_int_addr = -1; static int hf_isis_lsp_clv_te_router_id = -1; static int hf_isis_lsp_clv_mt = -1; static int hf_isis_lsp_p = -1; static int hf_isis_lsp_att = -1; static int hf_isis_lsp_hippity = -1; static int hf_isis_lsp_is_type = -1; static int hf_isis_lsp_clv_type = -1; static int hf_isis_lsp_clv_length = -1; static int hf_isis_lsp_root_id = -1; static int hf_isis_lsp_bw_ct_model = -1; static int hf_isis_lsp_bw_ct_reserved = -1; static int hf_isis_lsp_bw_ct0 = -1; static int hf_isis_lsp_bw_ct1 = -1; static int hf_isis_lsp_bw_ct2 = -1; static int hf_isis_lsp_bw_ct3 = -1; static int hf_isis_lsp_bw_ct4 = -1; static int hf_isis_lsp_bw_ct5 = -1; static int hf_isis_lsp_bw_ct6 = -1; static int hf_isis_lsp_bw_ct7 = -1; static int hf_isis_lsp_spb_link_metric = -1; static int hf_isis_lsp_spb_port_count = -1; static int hf_isis_lsp_spb_port_id = -1; static int hf_isis_lsp_adj_sid_flags = -1; static int hf_isis_lsp_adj_sid_family_flag = -1; static int hf_isis_lsp_adj_sid_backup_flag = -1; static int hf_isis_lsp_adj_sid_value_flag = -1; static int hf_isis_lsp_adj_sid_local_flag = -1; static int hf_isis_lsp_adj_sid_set_flag = -1; static int hf_isis_lsp_adj_sid_weight = -1; static int hf_isis_lsp_adj_sid_system_id = -1; static int hf_isis_lsp_sid_sli_label = -1; static int hf_isis_lsp_sid_sli_index = -1; static int hf_isis_lsp_sid_sli_ipv6 = -1; static int hf_isis_lsp_spb_reserved = -1; static int hf_isis_lsp_spb_sr_bit = -1; static int hf_isis_lsp_spb_spvid = -1; static int hf_isis_lsp_spb_short_mac_address_t = -1; static int hf_isis_lsp_spb_short_mac_address_r = -1; static int hf_isis_lsp_spb_short_mac_address_reserved = -1; static int hf_isis_lsp_spb_short_mac_address = -1; /* TLV 149 items draft-previdi-isis-segment-routing-extensions */ static int hf_isis_lsp_sl_binding_flags = -1; static int hf_isis_lsp_sl_binding_flags_f = -1; static int hf_isis_lsp_sl_binding_flags_m = -1; static int hf_isis_lsp_sl_binding_flags_s = -1; static int hf_isis_lsp_sl_binding_flags_d = -1; static int hf_isis_lsp_sl_binding_flags_a = -1; static int hf_isis_lsp_sl_binding_flags_rsv = -1; static int hf_isis_lsp_sl_binding_weight = -1; static int hf_isis_lsp_sl_binding_range = -1; static int hf_isis_lsp_sl_binding_prefix_length = -1; static int hf_isis_lsp_sl_binding_fec_prefix_ipv4 = -1; static int hf_isis_lsp_sl_binding_fec_prefix_ipv6 = -1; static int hf_isis_lsp_sl_sub_tlv = -1; static int hf_isis_lsp_sl_sub_tlv_type = -1; static int hf_isis_lsp_sl_sub_tlv_length = -1; static int hf_isis_lsp_sl_sub_tlv_label_20 = -1; static int hf_isis_lsp_sl_sub_tlv_label_32 = -1; static int hf_isis_lsp_sl_sub_tlv_flags = -1; static int hf_isis_lsp_sl_sub_tlv_flags_r = -1; static int hf_isis_lsp_sl_sub_tlv_flags_n = -1; static int hf_isis_lsp_sl_sub_tlv_flags_p = -1; static int hf_isis_lsp_sl_sub_tlv_flags_e = -1; static int hf_isis_lsp_sl_sub_tlv_flags_v = -1; static int hf_isis_lsp_sl_sub_tlv_flags_l = -1; static int hf_isis_lsp_sl_sub_tlv_flags_rsv = -1; static int hf_isis_lsp_sl_sub_tlv_algorithm = -1; static int hf_isis_lsp_mt_cap_spb_instance_v = -1; static int hf_isis_lsp_mt_cap_spb_instance_cist_external_root_path_cost = -1; static int hf_isis_lsp_rt_capable_tree_used_id_starting_tree_no = -1; static int hf_isis_lsp_mt_cap_spb_instance_bridge_priority = -1; static int hf_isis_lsp_mt_cap_spbm_service_identifier_base_vid = -1; static int hf_isis_lsp_mt_cap_spbm_service_identifier_t = -1; static int hf_isis_lsp_mt_cap_spbm_service_identifier_r = -1; static int hf_isis_lsp_mt_cap_spbm_service_identifier_reserved = -1; static int hf_isis_lsp_mt_cap_spbm_service_identifier_i_sid = -1; static int hf_isis_lsp_64_bit_administrative_tag = -1; static int hf_isis_lsp_grp_type = -1; static int hf_isis_lsp_grp_macaddr_length = -1; static int hf_isis_lsp_grp_ipv4addr_length = -1; static int hf_isis_lsp_grp_ipv6addr_length = -1; static int hf_isis_lsp_grp_unknown_length = -1; static int hf_isis_lsp_grp_macaddr_number_of_sources = -1; static int hf_isis_lsp_grp_ipv4addr_number_of_sources = -1; static int hf_isis_lsp_grp_ipv6addr_number_of_sources = -1; static int hf_isis_lsp_ext_is_reachability_traffic_engineering_default_metric = -1; static int hf_isis_lsp_grp_macaddr_group_address = -1; static int hf_isis_lsp_grp_ipv4addr_group_address = -1; static int hf_isis_lsp_grp_ipv6addr_group_address = -1; static int hf_isis_lsp_rt_capable_tree_root_id_nickname = -1; static int hf_isis_lsp_ext_is_reachability_ipv4_interface_address = -1; static int hf_isis_lsp_ext_ip_reachability_metric = -1; static int hf_isis_lsp_ext_ip_reachability_ipv4_prefix = -1; static int hf_isis_lsp_eis_neighbors_es_neighbor_id = -1; static int hf_isis_lsp_expense_metric = -1; static int hf_isis_lsp_ext_is_reachability_link_remote_identifier = -1; static int hf_isis_lsp_rt_capable_vlan_group_secondary_vlan_id = -1; static int hf_isis_lsp_grp_macaddr_vlan_id = -1; static int hf_isis_lsp_grp_ipv4addr_vlan_id = -1; static int hf_isis_lsp_grp_ipv6addr_vlan_id = -1; static int hf_isis_lsp_rt_capable_trill_affinity_tlv = -1; static int hf_isis_lsp_rt_capable_trill_fgl_safe = -1; static int hf_isis_lsp_rt_capable_trill_caps = -1; static int hf_isis_lsp_rt_capable_trill_flags = -1; static int hf_isis_lsp_rt_capable_tree_root_id_starting_tree_no = -1; static int hf_isis_lsp_rt_capable_interested_vlans_nickname = -1; static int hf_isis_lsp_ip_reachability_ipv4_prefix = -1; static int hf_isis_lsp_grp_macaddr_topology_id = -1; static int hf_isis_lsp_grp_ipv4addr_topology_id = -1; static int hf_isis_lsp_grp_ipv6addr_topology_id = -1; static int hf_isis_lsp_ext_is_reachability_ipv4_neighbor_address = -1; static int hf_isis_lsp_ipv6_reachability_reserved_bits = -1; static int hf_isis_lsp_eis_neighbors_default_metric = -1; static int hf_isis_lsp_mt_cap_spb_instance_cist_root_identifier = -1; static int hf_isis_lsp_rt_capable_tree_used_id_nickname = -1; static int hf_isis_lsp_grp_macaddr_source_address = -1; static int hf_isis_lsp_grp_ipv4addr_source_address = -1; static int hf_isis_lsp_grp_ipv6addr_source_address = -1; static int hf_isis_lsp_delay_metric = -1; static int hf_isis_lsp_ext_is_reachability_link_local_identifier = -1; static int hf_isis_lsp_mt_cap_mtid = -1; static int hf_isis_lsp_32_bit_administrative_tag = -1; static int hf_isis_lsp_ext_is_reachability_is_neighbor_id = -1; static int hf_isis_lsp_reservable_link_bandwidth = -1; static int hf_isis_lsp_rt_capable_vlan_group_primary_vlan_id = -1; static int hf_isis_lsp_rt_capable_interested_vlans_multicast_ipv4 = -1; static int hf_isis_lsp_rt_capable_interested_vlans_multicast_ipv6 = -1; static int hf_isis_lsp_mt_cap_spb_instance_number_of_trees = -1; static int hf_isis_lsp_mt_cap_spb_instance_vlanid_tuple_u = -1; static int hf_isis_lsp_mt_cap_spb_instance_vlanid_tuple_m = -1; static int hf_isis_lsp_mt_cap_spb_instance_vlanid_tuple_a = -1; static int hf_isis_lsp_mt_cap_spb_instance_vlanid_tuple_reserved = -1; static int hf_isis_lsp_mt_cap_spb_instance_vlanid_tuple_ect = -1; static int hf_isis_lsp_mt_cap_spb_instance_vlanid_tuple_base_vid = -1; static int hf_isis_lsp_mt_cap_spb_instance_vlanid_tuple_spvid = -1; static int hf_isis_lsp_mt_cap_spb_opaque_algorithm = -1; static int hf_isis_lsp_mt_cap_spb_opaque_information = -1; static int hf_isis_lsp_mt_cap_spbm_service_identifier_b_mac = -1; static int hf_isis_lsp_ipv6_reachability_subclvs_len = -1; static int hf_isis_lsp_ipv6_reachability_distribution = -1; static int hf_isis_lsp_ipv6_reachability_distribution_internal = -1; static int hf_isis_lsp_ipv6_reachability_subtlv = -1; static int hf_isis_lsp_ipv6_reachability_metric = -1; static int hf_isis_lsp_ipv6_reachability_prefix_length = -1; static int hf_isis_lsp_prefix_attr_flags = -1; static int hf_isis_lsp_prefix_attr_flags_x = -1; static int hf_isis_lsp_prefix_attr_flags_r = -1; static int hf_isis_lsp_prefix_attr_flags_n = -1; static int hf_isis_lsp_rt_capable_trees_maximum_nof_trees_to_compute = -1; static int hf_isis_lsp_rt_capable_interested_vlans_vlan_start_id = -1; static int hf_isis_lsp_rt_capable_nickname_nickname_priority = -1; static int hf_isis_lsp_ext_is_reachability_metric = -1; static int hf_isis_lsp_ext_is_reachability_subclvs_len = -1; static int hf_isis_lsp_ext_is_reachability_code = -1; static int hf_isis_lsp_ext_is_reachability_len = -1; static int hf_isis_lsp_ext_is_reachability_value = -1; static int hf_isis_lsp_default_metric = -1; static int hf_isis_lsp_ext_is_reachability_unidir_link_flags = -1; static int hf_isis_lsp_ext_is_reachability_unidir_link_flags_a = -1; static int hf_isis_lsp_ext_is_reachability_unidir_link_reserved = -1; static int hf_isis_lsp_ext_is_reachability_unidir_link_delay = -1; static int hf_isis_lsp_ext_is_reachability_unidir_link_delay_min = -1; static int hf_isis_lsp_ext_is_reachability_unidir_link_delay_max = -1; static int hf_isis_lsp_ext_is_reachability_unidir_delay_variation = -1; static int hf_isis_lsp_ext_is_reachability_unidir_link_loss = -1; static int hf_isis_lsp_ext_is_reachability_unidir_residual_bandwidth = -1; static int hf_isis_lsp_ext_is_reachability_unidir_available_bandwidth = -1; static int hf_isis_lsp_ext_is_reachability_unidir_utilized_bandwidth = -1; static int hf_isis_lsp_ext_ip_reachability_distribution = -1; static int hf_isis_lsp_ext_ip_reachability_subtlv = -1; static int hf_isis_lsp_ext_ip_reachability_prefix_length = -1; static int hf_isis_lsp_ext_ip_reachability_subclvs_len = -1; static int hf_isis_lsp_ext_ip_reachability_code = -1; static int hf_isis_lsp_ext_ip_reachability_len = -1; static int hf_isis_lsp_ext_ip_reachability_prefix_flags = -1; static int hf_isis_lsp_ext_ip_reachability_prefix_re_adv_flag = -1; static int hf_isis_lsp_ext_ip_reachability_prefix_node_sid_flag = -1; static int hf_isis_lsp_ext_ip_reachability_prefix_nophp_flag = -1; static int hf_isis_lsp_ext_ip_reachability_prefix_expl_null_flag = -1; static int hf_isis_lsp_ext_ip_reachability_prefix_value_flag = -1; static int hf_isis_lsp_ext_ip_reachability_prefix_local_flag = -1; static int hf_isis_lsp_maximum_link_bandwidth = -1; static int hf_isis_lsp_rt_capable_nickname_tree_root_priority = -1; static int hf_isis_lsp_eis_neighbors_delay_metric = -1; static int hf_isis_lsp_rt_capable_trill_maximum_version = -1; static int hf_isis_lsp_rt_capable_interested_vlans_afs_lost_counter = -1; static int hf_isis_lsp_ipv6_reachability_ipv6_prefix = -1; static int hf_isis_lsp_eis_neighbors_error_metric = -1; static int hf_isis_lsp_rt_capable_interested_vlans_vlan_end_id = -1; static int hf_isis_lsp_error_metric = -1; static int hf_isis_lsp_grp_macaddr_number_of_records = -1; static int hf_isis_lsp_grp_ipv4addr_number_of_records = -1; static int hf_isis_lsp_grp_ipv6addr_number_of_records = -1; static int hf_isis_lsp_rt_capable_nickname_nickname = -1; static int hf_isis_lsp_mt_id_reserved = -1; static int hf_isis_lsp_eis_neighbors_is_neighbor_id = -1; static int hf_isis_lsp_mt_id = -1; static int hf_isis_lsp_eis_neighbors_reserved = -1; static int hf_isis_lsp_ip_reachability_error_metric = -1; static int hf_isis_lsp_ip_reachability_delay_metric = -1; static int hf_isis_lsp_ip_reachability_expense_metric = -1; static int hf_isis_lsp_rt_capable_trees_nof_trees_to_use = -1; static int hf_isis_lsp_ip_reachability_default_metric = -1; static int hf_isis_lsp_rt_capable_trees_nof_trees_to_compute = -1; static int hf_isis_lsp_eis_neighbors_expense_metric = -1; static int hf_isis_lsp_partition_designated_l2_is = -1; static int hf_isis_lsp_originating_lsp_buffer_size = -1; static int hf_isis_lsp_ip_reachability_default_metric_ie = -1; static int hf_isis_lsp_eis_neighbors_default_metric_ie = -1; static int hf_isis_lsp_eis_neighbors_error_metric_supported = -1; static int hf_isis_lsp_unrsv_bw_priority_level = -1; static int hf_isis_lsp_ip_reachability_expense_metric_support = -1; static int hf_isis_lsp_mt_cap_overload = -1; static int hf_isis_lsp_eis_neighbors_expense_metric_supported = -1; static int hf_isis_lsp_ip_reachability_delay_metric_support = -1; static int hf_isis_lsp_ip_reachability_error_metric_support = -1; static int hf_isis_lsp_mt_cap_spsourceid = -1; static int hf_isis_lsp_eis_neighbors_delay_metric_supported = -1; static int hf_isis_lsp_eis_neighbors_error_metric_ie = -1; static int hf_isis_lsp_eis_neighbors_expense_metric_ie = -1; static int hf_isis_lsp_eis_neighbors_delay_metric_ie = -1; static int hf_isis_lsp_ip_reachability_delay_metric_ie = -1; static int hf_isis_lsp_ip_reachability_distribution = -1; static int hf_isis_lsp_ip_reachability_error_metric_ie = -1; static int hf_isis_lsp_ip_reachability_expense_metric_ie = -1; static int hf_isis_lsp_rt_capable_router_id =-1; static int hf_isis_lsp_rt_capable_flag_s =-1; static int hf_isis_lsp_rt_capable_flag_d =-1; static int hf_isis_lsp_clv_te_node_cap_b_bit = -1; static int hf_isis_lsp_clv_te_node_cap_e_bit = -1; static int hf_isis_lsp_clv_te_node_cap_m_bit = -1; static int hf_isis_lsp_clv_te_node_cap_g_bit = -1; static int hf_isis_lsp_clv_te_node_cap_p_bit = -1; static int hf_isis_lsp_clv_sr_cap_i_flag = -1; static int hf_isis_lsp_clv_sr_cap_v_flag = -1; static int hf_isis_lsp_clv_sr_cap_range = -1; static int hf_isis_lsp_clv_sr_cap_sid = -1; static int hf_isis_lsp_clv_sr_cap_label = -1; static int hf_isis_lsp_clv_sr_alg = -1; static int hf_isis_lsp_clv_sr_lb_flags = -1; static int hf_isis_lsp_clv_srv6_cap_flags = -1; static int hf_isis_lsp_clv_srv6_cap_flags_o = -1; static int hf_isis_lsp_clv_srv6_cap_flags_unused = -1; static int hf_isis_lsp_clv_igp_msd_type = -1; static int hf_isis_lsp_clv_igp_msd_value = -1; static int hf_isis_lsp_clv_ext_admin_group = -1; static int hf_isis_lsp_clv_app_sabm_legacy = -1; static int hf_isis_lsp_clv_app_sabm_length = -1; static int hf_isis_lsp_clv_app_sabm_bits = -1; static int hf_isis_lsp_clv_app_sabm_bits_r = -1; static int hf_isis_lsp_clv_app_sabm_bits_s = -1; static int hf_isis_lsp_clv_app_sabm_bits_f = -1; static int hf_isis_lsp_clv_app_sabm_bits_x = -1; static int hf_isis_lsp_clv_app_udabm_reserved = -1; static int hf_isis_lsp_clv_app_udabm_length = -1; static int hf_isis_lsp_clv_app_udabm_bits = -1; static int hf_isis_lsp_clv_flex_algo_algorithm = -1; static int hf_isis_lsp_clv_flex_algo_metric_type = -1; static int hf_isis_lsp_clv_flex_algo_calc_type = -1; static int hf_isis_lsp_clv_flex_algo_priority = -1; static int hf_isis_lsp_clv_srv6_endx_sid_system_id = -1; static int hf_isis_lsp_clv_srv6_endx_sid_flags = -1; static int hf_isis_lsp_clv_srv6_endx_sid_flags_b = -1; static int hf_isis_lsp_clv_srv6_endx_sid_flags_s = -1; static int hf_isis_lsp_clv_srv6_endx_sid_flags_p = -1; static int hf_isis_lsp_clv_srv6_endx_sid_alg = -1; static int hf_isis_lsp_clv_srv6_endx_sid_weight = -1; static int hf_isis_lsp_clv_srv6_endx_sid_endpoint_func = -1; static int hf_isis_lsp_clv_srv6_endx_sid_sid = -1; static int hf_isis_lsp_clv_srv6_endx_sid_subsubclvs_len = -1; static int hf_isis_lsp_area_address = -1; static int hf_isis_lsp_instance_identifier = -1; static int hf_isis_lsp_supported_itid = -1; static int hf_isis_lsp_clv_nlpid_nlpid = -1; static int hf_isis_lsp_ip_authentication = -1; static int hf_isis_lsp_authentication = -1; static int hf_isis_lsp_area_address_str = -1; static int hf_isis_lsp_is_virtual = -1; static int hf_isis_lsp_group = -1; static int hf_isis_lsp_default = -1; static int hf_isis_lsp_default_support = -1; static int hf_isis_lsp_delay = -1; static int hf_isis_lsp_delay_support = -1; static int hf_isis_lsp_expense = -1; static int hf_isis_lsp_expense_support = -1; static int hf_isis_lsp_error = -1; static int hf_isis_lsp_error_support = -1; static int hf_isis_lsp_clv_ipv6_te_router_id = -1; static int hf_isis_lsp_ext_is_reachability_ipv6_interface_address = -1; static int hf_isis_lsp_ext_is_reachability_ipv6_neighbor_address = -1; static int hf_isis_lsp_clv_bier_alg = -1; static int hf_isis_lsp_clv_bier_igp_alg = -1; static int hf_isis_lsp_clv_bier_subdomain = -1; static int hf_isis_lsp_clv_bier_bfrid = -1; static int hf_isis_lsp_clv_bier_subsub_type = -1; static int hf_isis_lsp_clv_bier_subsub_len = -1; static int hf_isis_lsp_clv_bier_subsub_mplsencap_maxsi= -1; static int hf_isis_lsp_clv_bier_subsub_mplsencap_bslen= -1; static int hf_isis_lsp_clv_bier_subsub_mplsencap_label= -1; static int hf_isis_lsp_srv6_loc_metric = -1; static int hf_isis_lsp_srv6_loc_flags = -1; static int hf_isis_lsp_srv6_loc_flags_d = -1; static int hf_isis_lsp_srv6_loc_flags_reserved = -1; static int hf_isis_lsp_srv6_loc_alg = -1; static int hf_isis_lsp_srv6_loc_size = -1; static int hf_isis_lsp_srv6_loc_locator = -1; static int hf_isis_lsp_srv6_loc_subclvs_len = -1; static int hf_isis_lsp_srv6_loc_sub_tlv_type = -1; static int hf_isis_lsp_srv6_loc_sub_tlv_length = -1; static int hf_isis_lsp_clv_srv6_end_sid_flags = -1; static int hf_isis_lsp_clv_srv6_end_sid_endpoint_func = -1; static int hf_isis_lsp_clv_srv6_end_sid_sid = -1; static int hf_isis_lsp_clv_srv6_end_sid_subsubclvs_len = -1; static int hf_isis_lsp_purge_orig_id_num = -1; static int hf_isis_lsp_purge_orig_id_system_id = -1; /* rfc 6165: MAC Reachability */ static int hf_isis_lsp_mac_reachability_topoid_nick = -1; static int hf_isis_lsp_mac_reachability_confidence = -1; static int hf_isis_lsp_mac_reachability_reserved = -1; static int hf_isis_lsp_mac_reachability_vlan = -1; static int hf_isis_lsp_mac_reachability_mac = -1; static int hf_isis_lsp_mac_reachability_chassismac = -1; static int hf_isis_lsp_mac_reachability_fanmcast = -1; /* Avaya proprietary */ static int hf_isis_lsp_avaya_ipvpn_unknown = -1; static int hf_isis_lsp_avaya_ipvpn_system_id = -1; static int hf_isis_lsp_avaya_ipvpn_vrfsid = -1; static int hf_isis_lsp_avaya_ipvpn_subtlvbytes = -1; static int hf_isis_lsp_avaya_ipvpn_subtlvtype = -1; static int hf_isis_lsp_avaya_ipvpn_subtlvlength = -1; static int hf_isis_lsp_avaya_ipvpn_unknown_sub = -1; static int hf_isis_lsp_avaya_ipvpn_ipv4_metric = -1; static int hf_isis_lsp_avaya_ipvpn_ipv4_metrictype = -1; static int hf_isis_lsp_avaya_ipvpn_ipv4_addr = -1; static int hf_isis_lsp_avaya_ipvpn_ipv4_mask = -1; static int hf_isis_lsp_avaya_ipvpn_ipv6_metric = -1; static int hf_isis_lsp_avaya_ipvpn_ipv6_prefixlen = -1; static int hf_isis_lsp_avaya_ipvpn_ipv6_prefix = -1; static int hf_isis_lsp_avaya_185_unknown = -1; static int hf_isis_lsp_avaya_186_unknown = -1; static gint ett_isis_lsp = -1; static gint ett_isis_lsp_info = -1; static gint ett_isis_lsp_att = -1; static gint ett_isis_lsp_cksum = -1; static gint ett_isis_lsp_clv_area_addr = -1; static gint ett_isis_lsp_clv_is_neighbors = -1; static gint ett_isis_lsp_clv_instance_identifier = -1; static gint ett_isis_lsp_clv_ext_is_reachability = -1; /* CLV 22 */ static gint ett_isis_lsp_part_of_clv_ext_is_reachability = -1; static gint ett_isis_lsp_part_of_clv_ext_is_reachability_subtlv = -1; static gint ett_isis_lsp_subclv_admin_group = -1; static gint ett_isis_lsp_subclv_unrsv_bw = -1; static gint ett_isis_lsp_subclv_bw_ct = -1; static gint ett_isis_lsp_subclv_spb_link_metric = -1; static gint ett_isis_lsp_adj_sid_flags = -1; static gint ett_isis_lsp_clv_unknown = -1; static gint ett_isis_lsp_clv_partition_dis = -1; static gint ett_isis_lsp_clv_prefix_neighbors = -1; static gint ett_isis_lsp_clv_nlpid_nlpid = -1; static gint ett_isis_lsp_clv_hostname = -1; static gint ett_isis_lsp_clv_srlg = -1; static gint ett_isis_lsp_clv_te_router_id = -1; static gint ett_isis_lsp_clv_authentication = -1; static gint ett_isis_lsp_clv_ip_authentication = -1; static gint ett_isis_lsp_clv_ipv4_int_addr = -1; static gint ett_isis_lsp_clv_ipv6_int_addr = -1; /* CLV 232 */ static gint ett_isis_lsp_clv_mt_cap = -1; static gint ett_isis_lsp_clv_mt_cap_spb_instance = -1; static gint ett_isis_lsp_clv_mt_cap_spbm_service_identifier = -1; static gint ett_isis_lsp_clv_mt_cap_spbv_mac_address = -1; static gint ett_isis_lsp_clv_sid_label_binding = -1; static gint ett_isis_lsp_clv_ip_reachability = -1; static gint ett_isis_lsp_clv_ip_reach_subclv = -1; static gint ett_isis_lsp_clv_ext_ip_reachability = -1; /* CLV 135 */ static gint ett_isis_lsp_part_of_clv_ext_ip_reachability = -1; static gint ett_isis_lsp_clv_ipv6_reachability = -1; /* CLV 236 */ static gint ett_isis_lsp_part_of_clv_ipv6_reachability = -1; static gint ett_isis_lsp_prefix_sid_flags = -1; static gint ett_isis_lsp_prefix_attr_flags = -1; static gint ett_isis_lsp_clv_mt = -1; static gint ett_isis_lsp_clv_mt_is = -1; static gint ett_isis_lsp_part_of_clv_mt_is = -1; static gint ett_isis_lsp_clv_mt_reachable_IPv4_prefx = -1; /* CLV 235 */ static gint ett_isis_lsp_clv_mt_reachable_IPv6_prefx = -1; /* CLV 237 */ static gint ett_isis_lsp_clv_rt_capable = -1; /* CLV 242 */ static gint ett_isis_lsp_clv_te_node_cap_desc = -1; static gint ett_isis_lsp_clv_sr_cap = -1; static gint ett_isis_lsp_clv_sr_sid_label = -1; static gint ett_isis_lsp_clv_sr_alg = -1; static gint ett_isis_lsp_clv_sr_lb = -1; static gint ett_isis_lsp_clv_node_msd = -1; static gint ett_isis_lsp_clv_srv6_cap = -1; static gint ett_isis_lsp_clv_srv6_cap_flags = -1; static gint ett_isis_lsp_clv_flex_algo_def = -1; static gint ett_isis_lsp_clv_flex_algo_def_sub_tlv = -1; static gint ett_isis_lsp_clv_app_sabm_bits = -1; static gint ett_isis_lsp_clv_ipv6_te_rtrid = -1; static gint ett_isis_lsp_clv_trill_version = -1; static gint ett_isis_lsp_clv_trees = -1; static gint ett_isis_lsp_clv_root_id = -1; static gint ett_isis_lsp_clv_nickname = -1; static gint ett_isis_lsp_clv_interested_vlans = -1; static gint ett_isis_lsp_clv_tree_used = -1; static gint ett_isis_lsp_clv_vlan_group = -1; static gint ett_isis_lsp_clv_grp_address = -1; /* CLV 142 */ static gint ett_isis_lsp_clv_grp_macaddr = -1; static gint ett_isis_lsp_clv_grp_ipv4addr = -1; static gint ett_isis_lsp_clv_grp_ipv6addr = -1; static gint ett_isis_lsp_clv_grp_unknown = -1; static gint ett_isis_lsp_clv_purge_orig_id = -1; /* CLV 13 */ static gint ett_isis_lsp_clv_originating_buff_size = -1; /* CLV 14 */ static gint ett_isis_lsp_sl_flags = -1; static gint ett_isis_lsp_sl_sub_tlv = -1; static gint ett_isis_lsp_sl_sub_tlv_flags = -1; static gint ett_isis_lsp_clv_ipv6_te_router_id = -1; static gint ett_isis_lsp_clv_bier_subsub_tlv = -1; static gint ett_isis_lsp_clv_srv6_locator = -1; static gint ett_isis_lsp_clv_srv6_loc_flags = -1; static gint ett_isis_lsp_clv_srv6_loc_sub_tlv = -1; static gint ett_isis_lsp_clv_srv6_endx_sid_flags = -1; static gint ett_isis_lsp_clv_unidir_link_flags = -1; static gint ett_isis_lsp_clv_mac_reachability = -1; static gint ett_isis_lsp_clv_avaya_ipvpn = -1; static gint ett_isis_lsp_clv_avaya_ipvpn_subtlv = -1; static gint ett_isis_lsp_clv_avaya_ipvpn_mc = -1; static gint ett_isis_lsp_clv_avaya_ip_grt_mc = -1; static expert_field ei_isis_lsp_short_pdu = EI_INIT; static expert_field ei_isis_lsp_long_pdu = EI_INIT; static expert_field ei_isis_lsp_bad_checksum = EI_INIT; static expert_field ei_isis_lsp_subtlv = EI_INIT; static expert_field ei_isis_lsp_authentication = EI_INIT; static expert_field ei_isis_lsp_short_clv = EI_INIT; static expert_field ei_isis_lsp_long_clv = EI_INIT; static expert_field ei_isis_lsp_length_clv = EI_INIT; static expert_field ei_isis_lsp_clv_mt = EI_INIT; static expert_field ei_isis_lsp_clv_unknown = EI_INIT; static expert_field ei_isis_lsp_malformed_subtlv = EI_INIT; static expert_field ei_isis_lsp_unknown_subtlv = EI_INIT; static expert_field ei_isis_lsp_reserved_not_zero = EI_INIT; static expert_field ei_isis_lsp_length_invalid = EI_INIT; static const value_string isis_lsp_istype_vals[] = { { ISIS_LSP_TYPE_UNUSED0, "Unused 0x0 (invalid)"}, { ISIS_LSP_TYPE_LEVEL_1, "Level 1"}, { ISIS_LSP_TYPE_UNUSED2, "Unused 0x2 (invalid)"}, { ISIS_LSP_TYPE_LEVEL_2, "Level 2"}, { 0, NULL } }; static const value_string isis_lsp_sl_sub_tlv_vals[] = { { ISIS_LSP_SL_SUB_SID_LABEL, "SID/Label"}, { ISIS_LSP_SL_SUB_PREFIX_SID, "Prefix SID"}, { ISIS_LSP_SL_SUB_ADJ_SID, "Adjacency SID"}, { ISIS_LSP_SL_SUB_LAN_ADJ_SID,"LAN-Adjacency SID"}, { 0, NULL } }; static const value_string srv6_endpoint_type_vals[] = { { 1, "End" }, { 2, "End (PSP)" }, { 3, "End (USP)" }, { 4, "End (PSP/USP)" }, { 5, "End.X" }, { 6, "End.X (PSP)" }, { 7, "End.X (USP)" }, { 8, "End.X (PSP/USP)" }, { 9, "End.T" }, { 10, "End.T (PSP)" }, { 11, "End.T (USP)" }, { 12, "End.T (PSP/USP)" }, { 13, "End.B6" }, { 14, "End.B6.Encaps" }, { 15, "End.BM" }, { 16, "End.DX6" }, { 17, "End.DX4" }, { 18, "End.DT6" }, { 19, "End.DT4" }, { 20, "End.DT46" }, { 21, "End.DX2" }, { 22, "End.DX2V" }, { 23, "End.DT2U" }, { 24, "End.DT2M" }, { 25, "End.S" }, { 26, "End.B6.Red" }, { 27, "End.B6.Encaps.Red" }, { 0, NULL } }; static const value_string isis_lsp_srv6_loc_sub_tlv_vals[] = { { 5, "SRv6 End SID"}, { 0, NULL } }; static int * const adj_sid_flags[] = { &hf_isis_lsp_adj_sid_family_flag, &hf_isis_lsp_adj_sid_backup_flag, &hf_isis_lsp_adj_sid_value_flag, &hf_isis_lsp_adj_sid_local_flag, &hf_isis_lsp_adj_sid_set_flag, NULL, }; static int * const srv6_cap_flags[] = { &hf_isis_lsp_clv_srv6_cap_flags_o, &hf_isis_lsp_clv_srv6_cap_flags_unused, NULL, }; static int * const srv6_locator_flags[] = { &hf_isis_lsp_srv6_loc_flags_d, &hf_isis_lsp_srv6_loc_flags_reserved, NULL, }; static int * const srv6_endx_sid_flags[] = { &hf_isis_lsp_clv_srv6_endx_sid_flags_b, &hf_isis_lsp_clv_srv6_endx_sid_flags_s, &hf_isis_lsp_clv_srv6_endx_sid_flags_p, NULL, }; static int * const prefix_sid_flags[] = { &hf_isis_lsp_ext_ip_reachability_prefix_re_adv_flag, &hf_isis_lsp_ext_ip_reachability_prefix_node_sid_flag, &hf_isis_lsp_ext_ip_reachability_prefix_nophp_flag, &hf_isis_lsp_ext_ip_reachability_prefix_expl_null_flag, &hf_isis_lsp_ext_ip_reachability_prefix_value_flag, &hf_isis_lsp_ext_ip_reachability_prefix_local_flag, NULL, }; static int * const prefix_attr_flags[] = { &hf_isis_lsp_prefix_attr_flags_x, &hf_isis_lsp_prefix_attr_flags_r, &hf_isis_lsp_prefix_attr_flags_n, NULL, }; static const true_false_string tfs_ipv6_ipv4 = { "IPv6", "IPv4" }; static const value_string isis_igp_alg_vals[] = { { ISIS_ALG_SPF, "Shortest Path First (SPF)" }, { ISIS_ALG_SSPF, "Strict Shortest Path First (SPF)" }, { 0, NULL } }; static const value_string isis_lsp_igp_msd_types[] = { { IGP_MSD_TYPE_RESERVED, "Reserved" }, { IGP_MSD_TYPE_MPLS, "Base MPLS Imposition" }, { IGP_MSD_TYPE_SEGMENT_LEFT, "Maximum Segments Left" }, { IGP_MSD_TYPE_END_POP, "Maximum End Pop" }, { IGP_MSD_TYPE_T_INSERT, "Maximum T.Insert" }, { IGP_MSD_TYPE_T_ENCAP, "Maximum T.Encaps" }, { IGP_MSD_TYPE_END_D, "Maximum End D" }, { 0, NULL } }; static const value_string isis_lsp_flex_algo_metric_type_vals[] = { { 0, "IGP Metric"}, { 1, "Min Unidirectional Link Delay"}, { 2, "TE Metric"}, { 0, NULL } }; static const value_string isis_lsp_flex_algo_sub_tlv_vals[] = { { FAD_EXCLUDE_AG, "Flexible Algorithm Exclude Admin Group"}, { FAD_INCLUDE_ANY_AG, "Flexible Algorithm Include-Any Admin Group"}, { FAD_INCLUDE_ALL_AG, "Flexible Algorithm Include-All Admin Group"}, { FAD_DEF_FLAGS, "Flexible Algorithm Definition Flags"}, { FAD_EXCLUDE_SRLG, "Flexible Algorithm Exclude SRLG"}, { 0, NULL } }; static int * const isis_lsp_app_sabm_bits[] = { &hf_isis_lsp_clv_app_sabm_bits_r, &hf_isis_lsp_clv_app_sabm_bits_s, &hf_isis_lsp_clv_app_sabm_bits_f, &hf_isis_lsp_clv_app_sabm_bits_x, NULL, }; static const value_string isis_lsp_grp_types[] = { { GRP_MAC_ADDRESS, "MAC address" }, { GRP_IPV4_ADDRESS, "IPv4 address" }, { GRP_IPV6_ADDRESS, "IPv6 address" }, { 0, NULL } }; static int * const unidir_link_flags[] = { &hf_isis_lsp_ext_is_reachability_unidir_link_flags_a, NULL, }; /* http://www.iana.org/assignments/isis-tlv-codepoints/isis-tlv-codepoints.xhtml#isis-tlv-codepoints-22-23-141-222-223 https://tools.ietf.org/html/rfc8667 */ static const value_string isis_lsp_ext_is_reachability_code_vals[] = { { 3, "Administrative group (color)" }, { 4, "Link Local/Remote Identifiers" }, { 6, "IPv4 interface address" }, { 8, "IPv4 neighbor address" }, { 9, "Maximum link bandwidth" }, { 10, "Maximum reservable link bandwidth" }, { 11, "Unreserved bandwidth" }, { 12, "IPv6 Interface Address" }, { 13, "IPv6 Neighbor Address" }, { 14, "Extended Administrative Group" }, { 15, "Link Maximum SID Depth" }, { 16, "Application-Specific Link Attributes" }, { 18, "TE Default metric" }, { 19, "Link-attributes" }, { 20, "Link Protection Type" }, { 21, "Interface Switching Capability Descriptor" }, { 22, "Bandwidth Constraints" }, { 23, "Unconstrained TE LSP Count (sub-)TLV" }, { 24, "remote AS number" }, { 25, "IPv4 remote ASBR Identifier" }, { 26, "IPv6 remote ASBR Identifier" }, { 27, "Interface Adjustment Capability Descriptor (IACD)" }, { 28, "MTU" }, { 29, "SPB-Metric" }, { 30, "SPB-A-OALG" }, { 31, "Adj-SID" }, { 32, "LAN-Adj-SID" }, { 33, "Unidirectional Link Delay"}, { 34, "Min/Max Unidirectional Link Delay"}, { 35, "Unidirectional Delay Variation"}, { 36, "Unidirectional Link Loss"}, { 37, "Unidirectional Residual Bandwidth"}, { 38, "Unidirectional Available Bandwidth"}, { 39, "Unidirectional Utilized Bandwidth"}, { 43, "SRv6 End.X SID" }, /* Suggested Value */ { 44, "SRv6 LAN End.X SID" }, /* Suggested Value */ { 250, "Reserved for Cisco-specific extensions" }, { 251, "Reserved for Cisco-specific extensions" }, { 252, "Reserved for Cisco-specific extensions" }, { 253, "Reserved for Cisco-specific extensions" }, { 254, "Reserved for Cisco-specific extensions" }, { 0, NULL } }; /* From: https://www.iana.org/assignments/isis-tlv-codepoints/isis-tlv-codepoints.xhtml Sub-TLVs for TLVs 135, 235, 236, and 237 */ #define IP_REACH_SUBTLV_32BIT_ADMIN_TAG 1 #define IP_REACH_SUBTLV_64BIT_ADMIN_TAG 2 #define IP_REACH_SUBTLV_PFX_SID 3 #define IP_REACH_SUBTLV_PFX_ATTRIB_FLAG 4 #define IP_REACH_SUBTLV_BIER_INFO 32 static const value_string isis_lsp_ext_ip_reachability_code_vals[] = { { IP_REACH_SUBTLV_32BIT_ADMIN_TAG, "32-bit Administrative Tag" }, { IP_REACH_SUBTLV_64BIT_ADMIN_TAG, "64-bit Administrative Tag" }, { IP_REACH_SUBTLV_PFX_SID, "Prefix-SID" }, { IP_REACH_SUBTLV_PFX_ATTRIB_FLAG, "Prefix Attribute Flags" }, { IP_REACH_SUBTLV_BIER_INFO, "BIER Info" }, { 0, NULL } }; /* From: https://www.iana.org/assignments/bier/bier.xhtml BIER Algorithm */ static const range_string isis_lsp_bier_alg_vals[] = { { 0, 0, "No BIER specific algorithm is used" }, { 240, 255, "Experimental Use" }, { 0, 0, NULL } }; /* From: https://www.iana.org/assignments/isis-tlv-codepoints/isis-tlv-codepoints.xhtml sub-sub-TLVs for BIER Info sub-TLV */ static const value_string isis_lsp_bier_subsubtlv_type_vals[] = { { 1, "BIER MPLS Encapsulation" }, { 0, NULL } }; /* Avaya specific sub-TLV types */ static const value_string isis_lsp_avaya_ipvpn_subtlv_code_vals[] = { { 1, "IPv4 Metric Type" }, { 135, "IPv4 Reachability" }, { 236, "IPv6 Reachability" }, { 0, NULL } }; /* * Name: dissect_lsp_mt_id() * * Description: * dissect and display the multi-topology ID value * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : protocol display tree to fill out. CAN'T BE NULL * int : offset into packet data where we are. * * Output: * void, but we will add to proto tree. */ static void dissect_lsp_mt_id(tvbuff_t *tvb, proto_tree *tree, int offset) { proto_tree_add_item(tree, hf_isis_lsp_mt_id_reserved, tvb, offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_isis_lsp_mt_id, tvb, offset, 2, ENC_BIG_ENDIAN); } /* * Name: dissect_metric() * * Description: * Display a metric prefix portion. ISIS has the concept of multiple * metric per prefix (default, delay, expense, and error). This * routine assists other dissectors by adding a single one of * these to the display tree.. * * The 8th(msbit) bit in the metric octet is the "supported" bit. The * "default" support is required, so we support a "force_supported" * flag that tells us that it MUST be zero (zero==supported, * so it really should be a "not supported" in the boolean sense) * and to display a protocol failure accordingly. Notably, * Cisco IOS 12(6) blows this! * The 7th bit must be zero (reserved). * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : protocol display tree to fill out. May be NULL * int : offset into packet data where we are. * int : hf of the metric. * int : hf_support of the metric. * int : force supported. True is the supported bit MUST be zero. * * Output: * void, but we will add to proto tree if !NULL. */ static void dissect_metric(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset, int hf, int hf_support, int force_supported ) { guint8 metric; proto_item *item, *support_item; metric = tvb_get_guint8(tvb, offset); support_item = proto_tree_add_boolean(tree, hf_support, tvb, offset, 1, metric); item = proto_tree_add_uint(tree, hf, tvb, offset, 1, metric); if (!ISIS_LSP_CLV_METRIC_SUPPORTED(metric) && force_supported) proto_item_append_text(support_item, " (but is required to be)"); if (ISIS_LSP_CLV_METRIC_RESERVED(metric)) expert_add_info(pinfo, item, &ei_isis_lsp_reserved_not_zero); } /* * Name: dissect_lsp_ip_reachability_clv() * * Description: * Decode an IP reachability CLV. This can be either internal or * external (the clv format does not change and which type we are * displaying is put there by the dispatcher). All of these * are a metric block followed by an IP addr and mask. * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : proto tree to build on (may be null) * int : current offset into packet data * int : length of IDs in packet. * int : length of this clv * * Output: * void, will modify proto_tree if not null. */ static void dissect_lsp_ip_reachability_clv(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset, isis_data_t *isis _U_, int length) { proto_item *ti; proto_tree *ntree = NULL; guint32 src, mask, bitmask; int prefix_len; gboolean found_mask = FALSE; while ( length > 0 ) { if (length<12) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_short_clv, tvb, offset, -1, "short IP reachability (%d vs 12)", length ); return; } /* * Gotta build a sub-tree for all our pieces */ if ( tree ) { src = tvb_get_ipv4(tvb, offset+4); mask = tvb_get_ntohl(tvb, offset+8); /* find out if the mask matches one of 33 possible prefix lengths */ bitmask = 0xffffffff; for(prefix_len = 32; prefix_len >= 0; prefix_len--) { if (bitmask==mask) { found_mask = TRUE; break; } bitmask = bitmask << 1; } /* If we have a discontiguous netmask, dump the mask, otherwise print the prefix_len */ /* XXX - We should probably have some sort of netmask_to_str() routine in to_str.c that does this. */ if(found_mask) { ti = proto_tree_add_ipv4_format_value( tree, hf_isis_lsp_ip_reachability_ipv4_prefix, tvb, offset, 12, src, "%s/%d", tvb_ip_to_str(pinfo->pool, tvb, offset+4), prefix_len ); } else { ti = proto_tree_add_ipv4_format_value( tree, hf_isis_lsp_ip_reachability_ipv4_prefix, tvb, offset, 12, src, "%s mask %s", tvb_ip_to_str(pinfo->pool, tvb, offset+4), tvb_ip_to_str(pinfo->pool, tvb, offset+8)); }; ntree = proto_item_add_subtree(ti, ett_isis_lsp_clv_ip_reachability); proto_tree_add_item(ntree, hf_isis_lsp_ip_reachability_default_metric, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ntree, hf_isis_lsp_ip_reachability_default_metric_ie, tvb, offset, 1, ENC_NA); proto_tree_add_item(ntree, hf_isis_lsp_ip_reachability_distribution, tvb, offset, 1, ENC_NA); proto_tree_add_item(ntree, hf_isis_lsp_ip_reachability_delay_metric, tvb, offset+1, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ntree, hf_isis_lsp_ip_reachability_delay_metric_support, tvb, offset+1, 1, ENC_NA); proto_tree_add_item(ntree, hf_isis_lsp_ip_reachability_delay_metric_ie, tvb, offset+1, 1, ENC_NA); proto_tree_add_item(ntree, hf_isis_lsp_ip_reachability_expense_metric, tvb, offset+2, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ntree, hf_isis_lsp_ip_reachability_expense_metric_support, tvb, offset+2, 1, ENC_NA); proto_tree_add_item(ntree, hf_isis_lsp_ip_reachability_expense_metric_ie, tvb, offset+2, 1, ENC_NA); proto_tree_add_item(ntree, hf_isis_lsp_ip_reachability_error_metric, tvb, offset+3, 1, ENC_BIG_ENDIAN); proto_tree_add_item(ntree, hf_isis_lsp_ip_reachability_error_metric_support, tvb, offset+3, 1, ENC_NA); proto_tree_add_item(ntree, hf_isis_lsp_ip_reachability_error_metric_ie, tvb, offset+3, 1, ENC_NA); } offset += 12; length -= 12; } } /* * Name: dissect_bierinfo_subsubtlv() * * Description: * Decodes a BIER Info sub-sub-TLV (RFC 8401) * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : proto tree to build on (may be null) * int : current offset into packet data * * Output: * void, will modify proto_tree if not null. */ static void dissect_bierinfo_subsubtlv (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, int tlv_type, int tlv_len) { switch (tlv_type) { case 1: if (tlv_len != 4) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_malformed_subtlv, tvb, offset, tlv_len, "TLV length (%d) != 4 bytes", tlv_len); return; } proto_tree_add_item(tree, hf_isis_lsp_clv_bier_subsub_mplsencap_maxsi, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_isis_lsp_clv_bier_subsub_mplsencap_bslen, tvb, offset+1, 1, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_isis_lsp_clv_bier_subsub_mplsencap_label, tvb, offset+1, 3, ENC_BIG_ENDIAN); break; default: break; } return; } /* * Name: dissect_bierinfo_subtlv() * * Description: * Decodes a BIER Info sub-TLV (RFC 8401) * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : proto tree to build on (may be null) * int : current offset into packet data * * Output: * void, will modify proto_tree if not null. */ static void dissect_bierinfo_subtlv (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, int tlv_len) { int min_tlv_len = 5; int len = tlv_len; guint subsub_type, subsub_len; proto_tree *subsub_tree = NULL; proto_item *ti_subsub = NULL; if (tlv_len < min_tlv_len) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_malformed_subtlv, tvb, offset-2, tlv_len+2, "Invalid length (%d) bytes for BIER Info sub-TLV: Minimum length (%d) bytes", tlv_len+2, min_tlv_len+2); return; } proto_tree_add_item(tree, hf_isis_lsp_clv_bier_alg, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; proto_tree_add_item(tree, hf_isis_lsp_clv_bier_igp_alg, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; proto_tree_add_item(tree, hf_isis_lsp_clv_bier_subdomain, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; proto_tree_add_item(tree, hf_isis_lsp_clv_bier_bfrid, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; len -= 5; /* Dissect sub-sub-TLVs if present */ min_tlv_len = 2; while (len > 0) { if (len < min_tlv_len) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_malformed_subtlv, tvb, offset, len, "Invalid data length (%d) bytes for BIER Info sub-sub-TLV: Minimum length (%d) bytes", len, min_tlv_len); return; } subsub_type = tvb_get_guint8(tvb, offset); subsub_len = tvb_get_guint8(tvb, offset+1); subsub_tree = proto_tree_add_subtree(tree, tvb, offset, subsub_len+2, ett_isis_lsp_clv_bier_subsub_tlv, &ti_subsub, "sub-subTLV"); proto_tree_add_item(subsub_tree, hf_isis_lsp_clv_bier_subsub_type, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; proto_tree_add_item(subsub_tree, hf_isis_lsp_clv_bier_subsub_len, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; len -= 2; proto_item_append_text(ti_subsub, ": %s (t=%u, l=%u)", val_to_str(subsub_type, isis_lsp_bier_subsubtlv_type_vals, "Unknown"), subsub_type, subsub_len); dissect_bierinfo_subsubtlv(tvb, pinfo, subsub_tree, offset, subsub_type, subsub_len); offset += subsub_len; len -= subsub_len; } return; } /* * Name: dissect_ipreach_subclv () * * Description: parses IP reach subTLVs * Called by various IP Reachability dissectors. * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : protocol display tree to fill out. * int : offset into packet data where we are (beginning of the sub_clv value). * * Output: * void */ static void dissect_ipreach_subclv(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *tree_item, int offset, int clv_code, int clv_len) { guint8 flags; switch (clv_code) { case IP_REACH_SUBTLV_32BIT_ADMIN_TAG: while (clv_len >= 4) { proto_tree_add_item(tree, hf_isis_lsp_32_bit_administrative_tag, tvb, offset, 4, ENC_BIG_ENDIAN); offset+=4; clv_len-=4; } break; case IP_REACH_SUBTLV_64BIT_ADMIN_TAG: while (clv_len >= 8) { proto_tree_add_item(tree, hf_isis_lsp_64_bit_administrative_tag, tvb, offset, 8, ENC_BIG_ENDIAN); offset+=8; clv_len-=8; } break; case IP_REACH_SUBTLV_PFX_SID: flags = tvb_get_guint8(tvb, offset); proto_tree_add_bitmask(tree, tvb, offset, hf_isis_lsp_ext_ip_reachability_prefix_flags, ett_isis_lsp_prefix_sid_flags, prefix_sid_flags, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(tree, hf_isis_lsp_clv_sr_alg, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; if (clv_len == 5) { if (!((flags & 0x0C) == 0x0C)) proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_malformed_subtlv, tvb, offset-2, clv_len, "V & L flags must be set"); proto_tree_add_item(tree, hf_isis_lsp_sid_sli_label, tvb, offset, 3, ENC_BIG_ENDIAN); } else if (clv_len == 6) { if (flags & 0x0C) proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_malformed_subtlv, tvb, offset-2, clv_len, "V & L flags must be unset"); proto_tree_add_item(tree, hf_isis_lsp_sid_sli_index, tvb, offset, 4, ENC_BIG_ENDIAN); } else { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_malformed_subtlv, tvb, offset-2, clv_len, "Unknown SID/Index/Label format"); } break; case IP_REACH_SUBTLV_PFX_ATTRIB_FLAG: /* Prefix Attribute Flags */ flags = tvb_get_guint8(tvb, offset); proto_tree_add_bitmask(tree, tvb, offset, hf_isis_lsp_prefix_attr_flags, ett_isis_lsp_prefix_attr_flags, prefix_attr_flags, ENC_BIG_ENDIAN); if (tree_item) { proto_item_append_text(tree_item, ": Flags:%c%c%c", ((flags & ISIS_LSP_PFX_ATTR_FLAG_X) != 0) ? 'X' : '-', ((flags & ISIS_LSP_PFX_ATTR_FLAG_R) != 0) ? 'R' : '-', ((flags & ISIS_LSP_PFX_ATTR_FLAG_N) != 0) ? 'N' : '-'); } break; case IP_REACH_SUBTLV_BIER_INFO: dissect_bierinfo_subtlv(tvb, pinfo, tree, offset, clv_len); break; default : break; } } /* * Name: dissect_lsp_ext_ip_reachability_clv() * * Description: Decode an Extended IP Reachability CLV - code 135. * * The extended IP reachability TLV is an extended version * of the IP reachability TLVs (codes 128 and 130). It encodes * the metric as a 32-bit unsigned interger and allows to add * sub-CLV(s). * * CALLED BY TLV 235 DISSECTOR * * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : proto tree to build on (may be null) * int : current offset into packet data * int : length of IDs in packet. * int : length of this clv * * Output: * void, will modify proto_tree if not null. */ static void dissect_lsp_ext_ip_reachability_clv(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset, isis_data_t *isis _U_, int length) { proto_tree *subtree = NULL; proto_tree *subclv_tree = NULL; proto_item *ti_subtree = NULL; proto_item *ti_subclvs = NULL; guint8 ctrl_info; guint bit_length; int byte_length; ws_in4_addr prefix; address prefix_addr; guint len,i; guint subclvs_len; guint clv_code, clv_len; gint clv_offset; gchar *prefix_str; while (length > 0) { ctrl_info = tvb_get_guint8(tvb, offset+4); bit_length = ctrl_info & 0x3f; byte_length = tvb_get_ipv4_addr_with_prefix_len(tvb, offset+5, &prefix, bit_length); if (byte_length == -1) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_short_clv, tvb, offset, -1, "IPv4 prefix has an invalid length: %d bits", bit_length ); return; } subclvs_len = 0; if ((ctrl_info & 0x40) != 0) subclvs_len = 1+tvb_get_guint8(tvb, offset+5+byte_length); /* open up a new tree per prefix */ subtree = proto_tree_add_subtree(tree, tvb, offset, 5+byte_length+subclvs_len, ett_isis_lsp_part_of_clv_ext_ip_reachability, &ti_subtree, "Ext. IP Reachability"); set_address(&prefix_addr, AT_IPv4, 4, &prefix); prefix_str = address_to_str(pinfo->pool, &prefix_addr); proto_item_append_text(ti_subtree, ": %s/%u", prefix_str, bit_length); proto_tree_add_item(subtree, hf_isis_lsp_ext_ip_reachability_metric, tvb, offset, 4, ENC_BIG_ENDIAN); proto_tree_add_item(subtree, hf_isis_lsp_ext_ip_reachability_distribution, tvb, offset+4, 1, ENC_NA); proto_tree_add_item(subtree, hf_isis_lsp_ext_ip_reachability_subtlv, tvb, offset+4, 1, ENC_NA); proto_tree_add_item(subtree, hf_isis_lsp_ext_ip_reachability_prefix_length, tvb, offset+4, 1, ENC_NA); proto_tree_add_ipv4(subtree, hf_isis_lsp_ext_ip_reachability_ipv4_prefix, tvb, offset + 5, byte_length, prefix); len = 5 + byte_length; if ((ctrl_info & 0x40) != 0) { subclvs_len = tvb_get_guint8(tvb, offset+len); proto_tree_add_item(subtree, hf_isis_lsp_ext_ip_reachability_subclvs_len, tvb, offset+len, 1, ENC_BIG_ENDIAN); i =0; while (i < subclvs_len) { clv_offset = offset + len + 1 + i; /* skip the total subtlv len indicator */ clv_code = tvb_get_guint8(tvb, clv_offset); clv_len = tvb_get_guint8(tvb, clv_offset+1); subclv_tree = proto_tree_add_subtree(subtree, tvb, clv_offset, clv_len + 2, ett_isis_lsp_clv_ip_reach_subclv, &ti_subclvs, "subTLV"); proto_tree_add_item(subclv_tree, hf_isis_lsp_ext_ip_reachability_code, tvb, clv_offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(subclv_tree, hf_isis_lsp_ext_ip_reachability_len, tvb, clv_offset+1, 1, ENC_BIG_ENDIAN); proto_item_append_text(ti_subclvs, ": %s (c=%u, l=%u)", val_to_str(clv_code, isis_lsp_ext_ip_reachability_code_vals, "Unknown"), clv_code, clv_len); /* * we pass on now the raw data to the ipreach_subtlv dissector * therefore we need to skip 3 bytes * (total subtlv len, subtlv type, subtlv len) */ dissect_ipreach_subclv(tvb, pinfo, subclv_tree, ti_subclvs, clv_offset+2, clv_code, clv_len); i += clv_len + 2; } len += 1 + subclvs_len; } else { proto_tree_add_uint_format(subtree, hf_isis_lsp_ext_ip_reachability_subclvs_len, tvb, offset+len, 0, 0, "no sub-TLVs present"); } offset += len; length -= len; } } /* * Name: dissect_isis_grp_address_clv() * * Description: Decode GROUP ADDRESS subTLVs * The Group Address TLV is composed of 1 octet for the type, * 1 octet that specifies the number of bytes in the value field, and a * Variable length value field that can have any or all of the subTLVs that are listed in the * - below section * *Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : proto tree to build on (may be null) * int : current offset into packet data * int : length of IDs in packet. * int : length of this clv * * Output: * void, will modify proto_tree if not null. */ static void dissect_isis_grp_address_clv(tvbuff_t *tvb, packet_info* pinfo _U_, proto_tree *tree, int offset, isis_data_t *isis _U_, int length) { gint source_num; guint8 subtlv_type; int subtlv_len; proto_tree *rt_tree=NULL; while (length>0) { subtlv_type = tvb_get_guint8(tvb, offset); subtlv_len = tvb_get_guint8(tvb, offset+1); switch(subtlv_type) { case GRP_MAC_ADDRESS: rt_tree = proto_tree_add_subtree(tree, tvb, offset, subtlv_len+2, ett_isis_lsp_clv_grp_macaddr, NULL, "Group MAC Address Sub-TLV"); proto_tree_add_uint(rt_tree, hf_isis_lsp_grp_type, tvb, offset, 1, subtlv_type); length--; offset++; proto_tree_add_uint(rt_tree, hf_isis_lsp_grp_macaddr_length, tvb, offset, 1, subtlv_len); if(subtlv_len < 5) { length -= subtlv_len; offset += subtlv_len; break; } length--; offset++; proto_tree_add_item(rt_tree, hf_isis_lsp_grp_macaddr_topology_id, tvb, offset, 2, ENC_BIG_ENDIAN); length -= 2; offset += 2; subtlv_len -= 2; proto_tree_add_item(rt_tree, hf_isis_lsp_grp_macaddr_vlan_id, tvb, offset, 2, ENC_BIG_ENDIAN); length -= 2; offset += 2; subtlv_len -= 2; proto_tree_add_item(rt_tree, hf_isis_lsp_grp_macaddr_number_of_records, tvb, offset, 1, ENC_BIG_ENDIAN); length--; offset++; subtlv_len--; while(subtlv_len > 0) { source_num=tvb_get_guint8(tvb, offset); proto_tree_add_item(rt_tree, hf_isis_lsp_grp_macaddr_number_of_sources, tvb, offset, 1, ENC_BIG_ENDIAN); length--; offset++; subtlv_len--; proto_tree_add_item(rt_tree, hf_isis_lsp_grp_macaddr_group_address, tvb, offset, 6, ENC_NA); length -= 6; offset += 6; subtlv_len -= 6; while((subtlv_len > 0) && (source_num > 0)) { proto_tree_add_item(rt_tree, hf_isis_lsp_grp_macaddr_source_address, tvb, offset, 6, ENC_NA); length -= 6; offset += 6; subtlv_len -= 6; source_num--; } } break; case GRP_IPV4_ADDRESS: rt_tree = proto_tree_add_subtree(tree, tvb, offset, subtlv_len+2, ett_isis_lsp_clv_grp_ipv4addr, NULL, "Group IPv4 Address Sub-TLV"); proto_tree_add_uint(rt_tree, hf_isis_lsp_grp_type, tvb, offset, 1, subtlv_type); length--; offset++; proto_tree_add_uint(rt_tree, hf_isis_lsp_grp_ipv4addr_length, tvb, offset, 1, subtlv_len); if(subtlv_len < 5) { length -= subtlv_len; offset += subtlv_len; break; } length--; offset++; proto_tree_add_item(rt_tree, hf_isis_lsp_grp_ipv4addr_topology_id, tvb, offset, 2, ENC_BIG_ENDIAN); length -= 2; offset += 2; subtlv_len -= 2; proto_tree_add_item(rt_tree, hf_isis_lsp_grp_ipv4addr_vlan_id, tvb, offset, 2, ENC_BIG_ENDIAN); length -= 2; offset += 2; subtlv_len -= 2; proto_tree_add_item(rt_tree, hf_isis_lsp_grp_ipv4addr_number_of_records, tvb, offset, 1, ENC_BIG_ENDIAN); length--; offset++; subtlv_len--; while(subtlv_len > 0) { source_num=tvb_get_guint8(tvb, offset); proto_tree_add_item(rt_tree, hf_isis_lsp_grp_ipv4addr_number_of_sources, tvb, offset, 1, ENC_BIG_ENDIAN); length--; offset++; subtlv_len--; proto_tree_add_item(rt_tree, hf_isis_lsp_grp_ipv4addr_group_address, tvb, offset, 4, ENC_BIG_ENDIAN); length -= 4; offset += 4; subtlv_len -= 4; while((subtlv_len > 0) && (source_num > 0)) { proto_tree_add_item(rt_tree, hf_isis_lsp_grp_ipv4addr_source_address, tvb, offset, 4, ENC_BIG_ENDIAN); length -= 4; offset += 4; subtlv_len -= 4; source_num--; } } break; case GRP_IPV6_ADDRESS: rt_tree = proto_tree_add_subtree(tree, tvb, offset, subtlv_len+2, ett_isis_lsp_clv_grp_ipv6addr, NULL, "Group IPv6 Address Sub-TLV"); proto_tree_add_uint(rt_tree, hf_isis_lsp_grp_type, tvb, offset, 1, subtlv_type); length--; offset++; proto_tree_add_uint(rt_tree, hf_isis_lsp_grp_ipv6addr_length, tvb, offset, 1, subtlv_len); if(subtlv_len < 5) { length -= subtlv_len; offset += subtlv_len; break; } length--; offset++; proto_tree_add_item(rt_tree, hf_isis_lsp_grp_ipv6addr_topology_id, tvb, offset, 2, ENC_BIG_ENDIAN); length -= 2; offset += 2; subtlv_len -= 2; proto_tree_add_item(rt_tree, hf_isis_lsp_grp_ipv6addr_vlan_id, tvb, offset, 2, ENC_BIG_ENDIAN); length -= 2; offset += 2; subtlv_len -= 2; proto_tree_add_item(rt_tree, hf_isis_lsp_grp_ipv6addr_number_of_records, tvb, offset, 1, ENC_BIG_ENDIAN); length--; offset++; subtlv_len--; while(subtlv_len > 0) { source_num=tvb_get_guint8(tvb, offset); proto_tree_add_item(rt_tree, hf_isis_lsp_grp_ipv6addr_number_of_sources, tvb, offset, 1, ENC_BIG_ENDIAN); length--; offset++; subtlv_len--; proto_tree_add_item(rt_tree, hf_isis_lsp_grp_ipv6addr_group_address, tvb, offset, 16, ENC_NA); length -= 16; offset += 16; subtlv_len -= 16; while((subtlv_len > 0) && (source_num > 0)) { proto_tree_add_item(rt_tree, hf_isis_lsp_grp_ipv6addr_source_address, tvb, offset, 16, ENC_NA); length -= 16; offset += 16; subtlv_len -= 16; source_num--; } } break; default: rt_tree = proto_tree_add_subtree(tree, tvb, offset, subtlv_len+2, ett_isis_lsp_clv_grp_unknown, NULL, "Unknown Sub-TLV"); proto_tree_add_uint(rt_tree, hf_isis_lsp_grp_type, tvb, offset, 1, subtlv_type); length--; offset++; proto_tree_add_uint(rt_tree, hf_isis_lsp_grp_unknown_length, tvb, offset, 1, subtlv_len); length--; offset++; length -= subtlv_len; offset += subtlv_len; break; } } } /** * Decode the Segment Routing "SID/Label" Sub-TLV * * This Sub-TLV is used in the Segment Routing Capability TLV (2) * It's called by the TLV 242 dissector (dissect_isis_trill_clv) * * @param tvb the buffer of the current data * @param pinfo the packet info of the current data * @param tree the tree to append this item * @param offset the offset in the tvb * @param tlv_len the length of tlv */ static void dissect_lsp_sr_sid_label_clv(tvbuff_t *tvb, packet_info* pinfo _U_, proto_tree *tree, int offset, guint8 tlv_len) { proto_tree *subtree; subtree = proto_tree_add_subtree_format(tree, tvb, offset-2, tlv_len+2, ett_isis_lsp_clv_sr_sid_label, NULL, "SID/Label (t=1, l=%u)", tlv_len); switch (tlv_len) { /* The length determines the type of info */ case 4: /* Then it's a SID */ proto_tree_add_item(subtree, hf_isis_lsp_clv_sr_cap_sid, tvb, offset, tlv_len, ENC_BIG_ENDIAN); break; case 3: /* Then it's a Label */ proto_tree_add_item(subtree, hf_isis_lsp_clv_sr_cap_label, tvb, offset, tlv_len, ENC_BIG_ENDIAN); break; default: proto_tree_add_expert_format(subtree, pinfo, &ei_isis_lsp_subtlv, tvb, offset, tlv_len, "SID/Label SubTlv - Bad length: Type: %d, Length: %d", ISIS_SR_SID_LABEL, tlv_len); break; } } static void dissect_subclv_ext_admin_group(tvbuff_t *tvb, proto_tree *tree, int offset, int subtype _U_, int sublen); static int dissect_isis_trill_clv(tvbuff_t *tvb, packet_info* pinfo _U_, proto_tree *tree, int offset, int subtype, int sublen) { guint16 rt_block; proto_tree *rt_tree, *cap_tree, *subtree; guint16 root_id; guint8 tlv_type, tlv_len; int i; gint local_offset; switch (subtype) { case ISIS_TE_NODE_CAP_DESC: /* 1 TE Node Capability Descriptor [RFC5073] */ cap_tree = proto_tree_add_subtree(tree, tvb, offset-2, sublen+2, ett_isis_lsp_clv_te_node_cap_desc, NULL, "TE Node Capability Descriptor"); /* * 0 B bit: P2MP Branch LSR capability [RFC5073] * 1 E bit: P2MP Bud LSR capability [RFC5073] * 2 M bit: MPLS-TE support [RFC5073] * 3 G bit: GMPLS support [RFC5073] * 4 P bit: P2MP RSVP-TE support [RFC5073] * 5-7 Unassigned [RFC5073] */ proto_tree_add_item(cap_tree, hf_isis_lsp_clv_te_node_cap_b_bit, tvb, offset, 1, ENC_NA); proto_tree_add_item(cap_tree, hf_isis_lsp_clv_te_node_cap_e_bit, tvb, offset, 1, ENC_NA); proto_tree_add_item(cap_tree, hf_isis_lsp_clv_te_node_cap_m_bit, tvb, offset, 1, ENC_NA); proto_tree_add_item(cap_tree, hf_isis_lsp_clv_te_node_cap_g_bit, tvb, offset, 1, ENC_NA); proto_tree_add_item(cap_tree, hf_isis_lsp_clv_te_node_cap_p_bit, tvb, offset, 1, ENC_NA); return(0); case SEGMENT_ROUTING_CAP: rt_tree = proto_tree_add_subtree_format(tree, tvb, offset-2, sublen+2, ett_isis_lsp_clv_sr_cap, NULL, "Segment Routing - Capability (t=%u, l=%u)", subtype, sublen); /* * 0 I-Flag: IPv4 flag [draft-ietf-isis-segment-routing-extensions] * 1 V-Flag: IPv6 flag [draft-ietf-isis-segment-routing-extensions] * 2-7 Unassigned */ proto_tree_add_item(rt_tree, hf_isis_lsp_clv_sr_cap_i_flag, tvb, offset, 1, ENC_NA); proto_tree_add_item(rt_tree, hf_isis_lsp_clv_sr_cap_v_flag, tvb, offset, 1, ENC_NA); proto_tree_add_item(rt_tree, hf_isis_lsp_clv_sr_cap_range, tvb, offset+1, 3, ENC_BIG_ENDIAN); tlv_type = tvb_get_guint8(tvb, offset+4); tlv_len = tvb_get_guint8(tvb, offset+5); if (tlv_type == ISIS_SR_SID_LABEL) { dissect_lsp_sr_sid_label_clv(tvb, pinfo, rt_tree, offset+6, tlv_len); } else proto_tree_add_expert_format(rt_tree, pinfo, &ei_isis_lsp_subtlv, tvb, offset+4, tlv_len+2, "Unknown SubTlv: Type: %d, Length: %d", tlv_type, tlv_len); return(0); case IPV6_TE_ROUTER_ID: /* 12: IPv6 TE Router ID (rfc5316) */ rt_tree = proto_tree_add_subtree_format(tree, tvb, offset-2, sublen+2, ett_isis_lsp_clv_ipv6_te_rtrid, NULL, "IPv6 TE Router ID (t=%u, l=%u)", subtype, sublen); proto_tree_add_item(rt_tree, hf_isis_lsp_clv_ipv6_te_router_id, tvb, offset, 16, ENC_NA); return (0); case TRILL_VERSION: rt_tree = proto_tree_add_subtree_format(tree, tvb, offset-2, sublen+2, ett_isis_lsp_clv_trill_version, NULL, "TRILL version (t=%u, l=%u)", subtype, sublen); proto_tree_add_item(rt_tree, hf_isis_lsp_rt_capable_trill_maximum_version, tvb, offset, 1, ENC_BIG_ENDIAN); if ( sublen == 5 ) { offset++; proto_tree_add_item(rt_tree, hf_isis_lsp_rt_capable_trill_affinity_tlv, tvb, offset, 4, ENC_NA); proto_tree_add_item(rt_tree, hf_isis_lsp_rt_capable_trill_fgl_safe, tvb, offset, 4, ENC_NA); proto_tree_add_item(rt_tree, hf_isis_lsp_rt_capable_trill_caps, tvb, offset, 4, ENC_NA); proto_tree_add_item(rt_tree, hf_isis_lsp_rt_capable_trill_flags, tvb, offset, 4, ENC_NA); } return(0); case TREES: rt_tree = proto_tree_add_subtree_format(tree, tvb, offset-2, sublen+2, ett_isis_lsp_clv_trees, NULL, "Trees (t=%u, l=%u)", subtype, sublen); proto_tree_add_item(rt_tree, hf_isis_lsp_rt_capable_trees_nof_trees_to_compute, tvb, offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(rt_tree, hf_isis_lsp_rt_capable_trees_maximum_nof_trees_to_compute, tvb, offset+2, 2, ENC_BIG_ENDIAN); proto_tree_add_item(rt_tree, hf_isis_lsp_rt_capable_trees_nof_trees_to_use, tvb, offset+4, 2, ENC_BIG_ENDIAN); return(0); case TREE_IDENTIFIER: rt_tree = proto_tree_add_subtree_format(tree, tvb, offset-2, sublen+2, ett_isis_lsp_clv_root_id, NULL, "Tree root identifiers (t=%u, l=%u)", subtype, sublen); root_id = tvb_get_ntohs(tvb, offset); proto_tree_add_item(rt_tree, hf_isis_lsp_rt_capable_tree_root_id_starting_tree_no, tvb, offset, 2, ENC_BIG_ENDIAN); sublen -= 2; offset += 2; while (sublen>=2) { rt_block = tvb_get_ntohs(tvb, offset); proto_tree_add_uint_format(rt_tree, hf_isis_lsp_rt_capable_tree_root_id_nickname, tvb, offset, 2, rt_block, "Nickname(%dth root): 0x%04x (%d)", root_id, rt_block, rt_block); root_id++; sublen -= 2; offset += 2; } return(0); case NICKNAME: rt_tree = proto_tree_add_subtree_format(tree, tvb, offset-2, sublen+2, ett_isis_lsp_clv_nickname, NULL, "Nickname (t=%u, l=%u)", subtype, sublen); while (sublen>=5) { proto_tree_add_item(rt_tree, hf_isis_lsp_rt_capable_nickname_nickname_priority, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(rt_tree, hf_isis_lsp_rt_capable_nickname_tree_root_priority, tvb, offset+1, 2, ENC_BIG_ENDIAN); proto_tree_add_item(rt_tree, hf_isis_lsp_rt_capable_nickname_nickname, tvb, offset+3, 2, ENC_BIG_ENDIAN); sublen -= 5; offset += 5; } return(0); case INTERESTED_VLANS: rt_tree = proto_tree_add_subtree_format(tree, tvb, offset-2, sublen+2, ett_isis_lsp_clv_interested_vlans, NULL, "Interested VLANs and spanning tree roots (t=%u, l=%u)", subtype, sublen); proto_tree_add_item(rt_tree, hf_isis_lsp_rt_capable_interested_vlans_nickname, tvb, offset, 2, ENC_BIG_ENDIAN); sublen -= 2; offset += 2; proto_tree_add_item(rt_tree, hf_isis_lsp_rt_capable_interested_vlans_multicast_ipv4, tvb, offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(rt_tree, hf_isis_lsp_rt_capable_interested_vlans_multicast_ipv6, tvb, offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(rt_tree, hf_isis_lsp_rt_capable_interested_vlans_vlan_start_id, tvb, offset, 2, ENC_BIG_ENDIAN); sublen -= 2; offset += 2; proto_tree_add_item(rt_tree, hf_isis_lsp_rt_capable_interested_vlans_vlan_end_id, tvb, offset, 2, ENC_BIG_ENDIAN); sublen -= 2; offset += 2; proto_tree_add_item(rt_tree, hf_isis_lsp_rt_capable_interested_vlans_afs_lost_counter, tvb, offset, 4, ENC_BIG_ENDIAN); sublen -= 4; offset += 4; while (sublen>=6) { proto_tree_add_item(rt_tree, hf_isis_lsp_root_id, tvb, offset, 6, ENC_NA); sublen -= 6; offset += 6; } return(0); case TREES_USED_IDENTIFIER: rt_tree = proto_tree_add_subtree_format(tree, tvb, offset-2, sublen+2, ett_isis_lsp_clv_tree_used, NULL, "Trees used identifiers (t=%u, l=%u)", subtype, sublen); root_id = tvb_get_ntohs(tvb, offset); proto_tree_add_item(rt_tree, hf_isis_lsp_rt_capable_tree_used_id_starting_tree_no, tvb, offset, 2, ENC_BIG_ENDIAN); sublen -= 2; offset += 2; while (sublen>=2) { rt_block = tvb_get_ntohs(tvb, offset); proto_tree_add_uint_format(rt_tree, hf_isis_lsp_rt_capable_tree_used_id_nickname, tvb, offset,2, rt_block, "Nickname(%dth root): 0x%04x (%d)", root_id, rt_block, rt_block); root_id++; offset += 2; sublen -= 2; } return(0); case VLAN_GROUP: rt_tree = proto_tree_add_subtree_format(tree, tvb, offset-2, sublen+2, ett_isis_lsp_clv_vlan_group, NULL, "VLAN group (t=%u, l=%u)", subtype, sublen); proto_tree_add_item(rt_tree, hf_isis_lsp_rt_capable_vlan_group_primary_vlan_id, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; sublen -= 2; while (sublen>=2) { proto_tree_add_item(rt_tree, hf_isis_lsp_rt_capable_vlan_group_secondary_vlan_id, tvb, offset, 2, ENC_BIG_ENDIAN); sublen -= 2; offset += 2; } return(0); case SEGMENT_ROUTING_ALG: rt_tree = proto_tree_add_subtree_format(tree, tvb, offset-2, sublen+2, ett_isis_lsp_clv_sr_alg, NULL, "Segment Routing - Algorithms (t=%u, l=%u)", subtype, sublen); i = 0; while (i < sublen) { proto_tree_add_item(rt_tree, hf_isis_lsp_clv_sr_alg, tvb, offset+i, 1, ENC_NA); i++; } return(0); case SEGMENT_ROUTING_LB: rt_tree = proto_tree_add_subtree_format(tree, tvb, offset-2, sublen+2, ett_isis_lsp_clv_sr_lb, NULL, "Segment Routing - Local Block (t=%u, l=%u)", subtype, sublen); proto_tree_add_item(rt_tree, hf_isis_lsp_clv_sr_lb_flags, tvb, offset, 1, ENC_NA); offset += 1; sublen -= 1; i = 0; while (i < sublen) { local_offset = offset + i; proto_tree_add_item(rt_tree, hf_isis_lsp_clv_sr_cap_range, tvb, local_offset, 3, ENC_NA); tlv_type = tvb_get_guint8(tvb, local_offset+3); tlv_len = tvb_get_guint8(tvb, local_offset+4); if (tlv_type == ISIS_SR_SID_LABEL) { dissect_lsp_sr_sid_label_clv(tvb, pinfo, rt_tree, local_offset+5, tlv_len); } else { proto_tree_add_expert_format(rt_tree, pinfo, &ei_isis_lsp_subtlv, tvb, local_offset+3, tlv_len+2, "Unknown Sub-TLV: Type: %d, Length: %d", tlv_type, tlv_len); } i += (5 + tlv_len); } return(0); case SRV6_CAP: rt_tree = proto_tree_add_subtree_format(tree, tvb, offset-2, sublen+2, ett_isis_lsp_clv_srv6_cap, NULL, "SRv6 Capability (t=%u, l=%u)", subtype, sublen); proto_tree_add_bitmask(rt_tree, tvb, offset, hf_isis_lsp_clv_srv6_cap_flags, ett_isis_lsp_clv_srv6_cap_flags, srv6_cap_flags, ENC_NA); return(0); case NODE_MSD: rt_tree = proto_tree_add_subtree_format(tree, tvb, offset-2, sublen+2, ett_isis_lsp_clv_node_msd, NULL, "Node Maximum SID Depth (t=%u, l=%u)", subtype, sublen); while (sublen >= 2) { proto_tree_add_item(rt_tree, hf_isis_lsp_clv_igp_msd_type, tvb, offset, 1, ENC_NA); proto_tree_add_item(rt_tree, hf_isis_lsp_clv_igp_msd_value, tvb, offset+1, 1, ENC_NA); sublen -= 2; offset += 2; } return(0); case FLEX_ALGO_DEF: rt_tree = proto_tree_add_subtree_format(tree, tvb, offset-2, sublen+2, ett_isis_lsp_clv_flex_algo_def, NULL, "Flexible Algorithm Definition (t=%u, l=%u)", subtype, sublen); proto_tree_add_item(rt_tree, hf_isis_lsp_clv_flex_algo_algorithm, tvb, offset, 1, ENC_NA); proto_tree_add_item(rt_tree, hf_isis_lsp_clv_flex_algo_metric_type, tvb, offset+1, 1, ENC_NA); proto_tree_add_item(rt_tree, hf_isis_lsp_clv_flex_algo_calc_type, tvb, offset+2, 1, ENC_NA); proto_tree_add_item(rt_tree, hf_isis_lsp_clv_flex_algo_priority, tvb, offset+3, 1, ENC_NA); sublen -= 4; offset += 4; while (sublen >= 2) { tlv_type = tvb_get_guint8(tvb, offset); tlv_len = tvb_get_guint8(tvb, offset+1); sublen -= 2; offset += 2; subtree = proto_tree_add_subtree_format(rt_tree, tvb, offset-2, tlv_len+2, ett_isis_lsp_clv_flex_algo_def_sub_tlv, NULL, "%s (t=%u, l=%u)", val_to_str(tlv_type, isis_lsp_flex_algo_sub_tlv_vals, "Unknown"), tlv_type, tlv_len); switch (tlv_type) { case FAD_EXCLUDE_AG: case FAD_INCLUDE_ANY_AG: case FAD_INCLUDE_ALL_AG: dissect_subclv_ext_admin_group(tvb, subtree, offset, tlv_type, tlv_len); break; default: break; } sublen -= tlv_len; offset += tlv_len; } return(0); default: return(-1); } } /* * Name: dissect_isis_rt_capable_clv() * * Description: Decode RouterCapability subTLVs * * The Router Capability TLV is composed of 1 octet for the type, * 1 octet that specifies the number of bytes in the value field, and a * variable length value field that can have any or all of the subTLVs * that are listed in the below section * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : proto tree to build on (may be null) * int : current offset into packet data * int : length of IDs in packet. * int : length of this clv * len : local variable described to handle the length of the subTLV * * Output: * void, will modify proto_tree if not null. */ /* As per RFC 7176 section 2.3 */ static void dissect_isis_rt_capable_clv(tvbuff_t *tvb, packet_info* pinfo _U_, proto_tree *tree, int offset, isis_data_t *isis _U_, int length) { guint8 subtype, subtlvlen; proto_tree_add_item(tree, hf_isis_lsp_rt_capable_router_id, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; length -= 4; proto_tree_add_item(tree, hf_isis_lsp_rt_capable_flag_s, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_isis_lsp_rt_capable_flag_d, tvb, offset, 1, ENC_BIG_ENDIAN); length -= 1; offset += 1; while (length>=2) { subtype = tvb_get_guint8(tvb, offset); subtlvlen = tvb_get_guint8(tvb, offset+1); length -= 2; offset += 2; if (subtlvlen > length) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_short_clv, tvb, offset-2, -1, "Short type %d TLV (%d vs %d)", subtype, subtlvlen, length); return; } if (dissect_isis_trill_clv(tvb, pinfo, tree, offset, subtype, subtlvlen)==-1) { proto_tree_add_expert_format( tree, pinfo, &ei_isis_lsp_subtlv, tvb, offset-2, subtlvlen+2, "Unknown SubTlv: Type: %d, Length: %d", subtype, subtlvlen); } length -= subtlvlen; offset += subtlvlen; } } /* * Name: dissect_lsp_ipv6_reachability_clv() * * Description: Decode an IPv6 reachability CLV - code 236. * * CALLED BY TLV 237 DISSECTOR * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : proto tree to build on (may be null) * int : current offset into packet data * int : length of IDs in packet. * int : length of this clv * * Output: * void, will modify proto_tree if not null. */ static void dissect_lsp_ipv6_reachability_clv(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset, isis_data_t *isis _U_, int length) { proto_tree *subtree = NULL; proto_tree *subtree2 = NULL; proto_item *ti_subtree = NULL; proto_item *ti_subclvs = NULL; guint8 ctrl_info; guint bit_length; int byte_length; ws_in6_addr prefix; address prefix_addr; guint len,i; guint subclvs_len; guint clv_code, clv_len; gint clv_offset; gchar *prefix_str; if (!tree) return; while (length > 0) { ctrl_info = tvb_get_guint8(tvb, offset+4); bit_length = tvb_get_guint8(tvb, offset+5); byte_length = tvb_get_ipv6_addr_with_prefix_len(tvb, offset+6, &prefix, bit_length); if (byte_length == -1) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_short_clv, tvb, offset, -1, "IPv6 prefix has an invalid length: %d bits", bit_length ); return; } subclvs_len = 0; if ((ctrl_info & 0x20) != 0) subclvs_len = 1+tvb_get_guint8(tvb, offset+6+byte_length); subtree = proto_tree_add_subtree(tree, tvb, offset, 6+byte_length+subclvs_len, ett_isis_lsp_part_of_clv_ipv6_reachability, &ti_subtree, "IPv6 Reachability"); set_address(&prefix_addr, AT_IPv6, 16, prefix.bytes); prefix_str = address_to_str(pinfo->pool, &prefix_addr); proto_item_append_text(ti_subtree, ": %s/%u", prefix_str, bit_length); proto_tree_add_item(subtree, hf_isis_lsp_ipv6_reachability_metric, tvb, offset, 4, ENC_BIG_ENDIAN); proto_tree_add_item(subtree, hf_isis_lsp_ipv6_reachability_distribution, tvb, offset+4, 1, ENC_NA); proto_tree_add_item(subtree, hf_isis_lsp_ipv6_reachability_distribution_internal, tvb, offset+4, 1, ENC_NA); proto_tree_add_item(subtree, hf_isis_lsp_ipv6_reachability_subtlv, tvb, offset+4, 1, ENC_NA); if ((ctrl_info & 0x1f) != 0) { proto_tree_add_item(subtree, hf_isis_lsp_ipv6_reachability_reserved_bits, tvb, offset+4, 1, ENC_BIG_ENDIAN); } proto_tree_add_item(subtree, hf_isis_lsp_ipv6_reachability_prefix_length, tvb, offset+5, 1, ENC_NA); proto_tree_add_ipv6_format_value(subtree, hf_isis_lsp_ipv6_reachability_ipv6_prefix, tvb, offset+6, byte_length, &prefix, "%s", prefix_str); len = 6 + byte_length; if ((ctrl_info & 0x20) != 0) { subclvs_len = tvb_get_guint8(tvb, offset+len); proto_tree_add_item(subtree, hf_isis_lsp_ipv6_reachability_subclvs_len, tvb, offset+len, 1, ENC_BIG_ENDIAN); i =0; while (i < subclvs_len) { clv_offset = offset + len + 1 + i; /* skip the total subtlv len indicator */ clv_code = tvb_get_guint8(tvb, clv_offset); clv_len = tvb_get_guint8(tvb, clv_offset+ 1); subtree2 = proto_tree_add_subtree_format(subtree, tvb, clv_offset, clv_len + 2, ett_isis_lsp_clv_ip_reach_subclv, &ti_subclvs, "subTLV"); proto_tree_add_item(subtree2, hf_isis_lsp_ext_ip_reachability_code, tvb, clv_offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(subtree2, hf_isis_lsp_ext_ip_reachability_len, tvb, clv_offset+1, 1, ENC_BIG_ENDIAN); proto_item_append_text(ti_subclvs, ": %s (c=%u, l=%u)", val_to_str(clv_code, isis_lsp_ext_ip_reachability_code_vals, "Unknown"), clv_code, clv_len); dissect_ipreach_subclv(tvb, pinfo, subtree2, ti_subclvs, clv_offset+2, clv_code, clv_len); i += clv_len + 2; } len += 1 + subclvs_len; } else { proto_tree_add_uint_format(subtree, hf_isis_lsp_ext_ip_reachability_subclvs_len, tvb, offset, len, 0, "no sub-TLVs present"); } offset += len; length -= len; } } /* * Name: dissect_lsp_nlpid_clv() * * Description: * Decode for a lsp packets NLPID clv. Calls into the * clv common one. * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : proto tree to build on (may be null) * int : current offset into packet data * int : length of IDs in packet. * int : length of this clv * * Output: * void, will modify proto_tree if not null. */ static void dissect_lsp_nlpid_clv(tvbuff_t *tvb, packet_info* pinfo _U_, proto_tree *tree, int offset, isis_data_t *isis _U_, int length) { isis_dissect_nlpid_clv(tvb, tree, ett_isis_lsp_clv_nlpid_nlpid, hf_isis_lsp_clv_nlpid_nlpid, offset, length); } /* * Name: dissect_lsp_mt_clv() * * Description: - code 229 * Decode for a lsp packets Multi Topology clv. Calls into the * clv common one. * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : proto tree to build on (may be null) * int : current offset into packet data * guint : length of this clv * int : length of IDs in packet. * * Output: * void, will modify proto_tree if not null. */ static void dissect_lsp_mt_clv(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset, isis_data_t *isis _U_, int length) { isis_dissect_mt_clv(tvb, pinfo, tree, offset, length, hf_isis_lsp_clv_mt, &ei_isis_lsp_clv_mt ); } /* * Name: dissect_lsp_hostname_clv() * * Description: * Decode for a lsp packets hostname clv. Calls into the * clv common one. * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : proto tree to build on (may be null) * int : current offset into packet data * int : length of IDs in packet. * int : length of this clv * * Output: * void, will modify proto_tree if not null. */ static void dissect_lsp_hostname_clv(tvbuff_t *tvb, packet_info* pinfo _U_, proto_tree *tree, int offset, isis_data_t *isis _U_, int length) { isis_dissect_hostname_clv(tvb, tree, offset, length, hf_isis_lsp_hostname); } /* * Name: dissect_lsp_srlg_clv() * * Description: * Decode for a lsp packets Shared Risk Link Group (SRLG) clv (138). Calls into the * clv common one. * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : proto tree to build on (may be null) * int : current offset into packet data * int : length of IDs in packet. * int : length of this clv * * Output: * void, will modify proto_tree if not null. */ static void dissect_lsp_srlg_clv(tvbuff_t *tvb, packet_info* pinfo _U_, proto_tree *tree, int offset, isis_data_t *isis _U_, int length) { proto_tree_add_item(tree, hf_isis_lsp_srlg_system_id, tvb, offset, 6, ENC_BIG_ENDIAN); offset += 6; proto_tree_add_item(tree, hf_isis_lsp_srlg_pseudo_num, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; proto_tree_add_item(tree, hf_isis_lsp_srlg_flags_numbered, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; proto_tree_add_item(tree, hf_isis_lsp_srlg_ipv4_local, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; proto_tree_add_item(tree, hf_isis_lsp_srlg_ipv4_remote, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; length -= 16; while(length){ proto_tree_add_item(tree, hf_isis_lsp_srlg_value, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; length -= 4; } } /* * Name: dissect_lsp_te_router_id_clv() * * Description: * Decode for a lsp packets Traffic Engineering ID clv. Calls into the * clv common one. * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : proto tree to build on (may be null) * int : current offset into packet data * int : length of IDs in packet. * int : length of this clv * * Output: * void, will modify proto_tree if not null. */ static void dissect_lsp_te_router_id_clv(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset, isis_data_t *isis _U_, int length) { isis_dissect_te_router_id_clv(tree, pinfo, tvb, &ei_isis_lsp_short_clv, offset, length, hf_isis_lsp_clv_te_router_id ); } /* * Name: dissect_lsp_ip_int_addr_clv() * * Description: * Decode for a lsp packets ip interface addr clv. Calls into the * clv common one. * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : proto tree to build on (may be null) * int : current offset into packet data * int : length of IDs in packet. * int : length of this clv * * Output: * void, will modify proto_tree if not null. */ static void dissect_lsp_ip_int_addr_clv(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset, isis_data_t *isis _U_, int length) { isis_dissect_ip_int_clv(tree, pinfo, tvb, &ei_isis_lsp_short_clv, offset, length, hf_isis_lsp_clv_ipv4_int_addr ); } /* * Name: dissect_lsp_ipv6_int_addr_clv() * * Description: Decode an IPv6 interface addr CLV - code 232. * * Calls into the clv common one. * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : proto tree to build on (may be null) * int : current offset into packet data * int : length of IDs in packet. * int : length of this clv * * Output: * void, will modify proto_tree if not null. */ static void dissect_lsp_ipv6_int_addr_clv(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset, isis_data_t *isis _U_, int length) { isis_dissect_ipv6_int_clv(tree, pinfo, tvb, &ei_isis_lsp_short_clv, offset, length, hf_isis_lsp_clv_ipv6_int_addr ); } static void dissect_isis_lsp_clv_mt_cap_spb_instance(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, int subtype, int sublen) { const int CIST_ROOT_ID_LEN = 8; /* CIST Root Identifier */ const int CIST_EXT_ROOT_PATH_COST_LEN = 4; /* CIST External Root Path Cost */ const int BRIDGE_PRI_LEN = 2; /* Bridge Priority */ const int V_SPSOURCEID_LEN = 4; /* v | SPSourceID */ const int NUM_TREES_LEN = 1; /* num of trees */ const int CIST_ROOT_ID_OFFSET = 0; const int CIST_EXT_ROOT_PATH_COST_OFFSET = CIST_ROOT_ID_OFFSET + CIST_ROOT_ID_LEN; const int BRIDGE_PRI_OFFSET = CIST_EXT_ROOT_PATH_COST_OFFSET + CIST_EXT_ROOT_PATH_COST_LEN; const int V_SPSOURCEID_OFFSET = BRIDGE_PRI_OFFSET + BRIDGE_PRI_LEN; const int NUM_TREES_OFFSET = V_SPSOURCEID_OFFSET + V_SPSOURCEID_LEN; const int FIXED_LEN = NUM_TREES_OFFSET + NUM_TREES_LEN; const int VLAN_ID_TUPLE_LEN = 8; static int * const lsp_cap_spb_instance_vlanid_tuple[] = { &hf_isis_lsp_mt_cap_spb_instance_vlanid_tuple_u, &hf_isis_lsp_mt_cap_spb_instance_vlanid_tuple_m, &hf_isis_lsp_mt_cap_spb_instance_vlanid_tuple_a, &hf_isis_lsp_mt_cap_spb_instance_vlanid_tuple_reserved, NULL }; if (sublen < FIXED_LEN) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_short_clv, tvb, offset, -1, "Short SPB Digest subTLV (%d vs %d)", sublen, FIXED_LEN); return; } else { proto_tree *subtree, *ti; int subofs = offset; guint8 num_trees = tvb_get_guint8(tvb, subofs + NUM_TREES_OFFSET); /*************************/ subtree = proto_tree_add_subtree_format( tree, tvb, offset-2, sublen+2, ett_isis_lsp_clv_mt_cap_spb_instance, NULL, "SPB Instance: Type: 0x%02x, Length: %d", subtype, sublen); /*************************/ proto_tree_add_item(subtree, hf_isis_lsp_mt_cap_spb_instance_cist_root_identifier, tvb, subofs + CIST_ROOT_ID_OFFSET, CIST_ROOT_ID_LEN, ENC_NA); proto_tree_add_item(subtree, hf_isis_lsp_mt_cap_spb_instance_cist_external_root_path_cost, tvb, subofs + CIST_EXT_ROOT_PATH_COST_OFFSET, CIST_EXT_ROOT_PATH_COST_LEN, ENC_BIG_ENDIAN); proto_tree_add_item(subtree, hf_isis_lsp_mt_cap_spb_instance_bridge_priority, tvb, subofs + BRIDGE_PRI_OFFSET, BRIDGE_PRI_LEN, ENC_BIG_ENDIAN); proto_tree_add_item(subtree, hf_isis_lsp_mt_cap_spb_instance_v, tvb, subofs + V_SPSOURCEID_OFFSET, V_SPSOURCEID_LEN, ENC_BIG_ENDIAN); proto_tree_add_item(subtree, hf_isis_lsp_mt_cap_spsourceid, tvb, subofs + V_SPSOURCEID_OFFSET, V_SPSOURCEID_LEN, ENC_BIG_ENDIAN); ti = proto_tree_add_item(subtree, hf_isis_lsp_mt_cap_spb_instance_number_of_trees, tvb, subofs + NUM_TREES_OFFSET, NUM_TREES_LEN, ENC_BIG_ENDIAN); if (num_trees == 0) proto_item_append_text(ti, " Invalid subTLV: zero trees"); subofs += FIXED_LEN; sublen -= FIXED_LEN; /*************************/ if (sublen != (num_trees * VLAN_ID_TUPLE_LEN)) { proto_tree_add_expert_format( subtree, pinfo, &ei_isis_lsp_short_clv, tvb, subofs, 0, "SubTLV length doesn't match number of trees"); return; } while (sublen > 0 && num_trees > 0) { if (sublen < VLAN_ID_TUPLE_LEN) { proto_tree_add_expert_format(subtree, pinfo, &ei_isis_lsp_short_clv, tvb, offset, -1, "Short VLAN_ID entry (%d vs %d)", sublen, VLAN_ID_TUPLE_LEN); return; } else { proto_tree_add_bitmask_list(subtree, tvb, subofs, 1, lsp_cap_spb_instance_vlanid_tuple, ENC_BIG_ENDIAN); subofs += 1; proto_tree_add_item(subtree, hf_isis_lsp_mt_cap_spb_instance_vlanid_tuple_ect, tvb, subofs, 4, ENC_BIG_ENDIAN); subofs += 4; proto_tree_add_item(subtree, hf_isis_lsp_mt_cap_spb_instance_vlanid_tuple_base_vid, tvb, subofs, 3, ENC_BIG_ENDIAN); proto_tree_add_item(subtree, hf_isis_lsp_mt_cap_spb_instance_vlanid_tuple_spvid, tvb, subofs, 3, ENC_BIG_ENDIAN); subofs += 3; sublen -= VLAN_ID_TUPLE_LEN; --num_trees; } } if (num_trees) { proto_tree_add_expert_format(subtree, pinfo, &ei_isis_lsp_short_clv, tvb, offset, -1, "Short subTLV (%d vs %d)", sublen, num_trees * VLAN_ID_TUPLE_LEN); return; } } } static void dissect_isis_lsp_clv_mt_cap_spb_oalg(tvbuff_t *tvb, proto_tree *tree, int offset, int subtype _U_, int sublen _U_) { proto_tree_add_item(tree, hf_isis_lsp_mt_cap_spb_opaque_algorithm, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; proto_tree_add_item(tree, hf_isis_lsp_mt_cap_spb_opaque_information, tvb, offset, -1, ENC_NA); } static void dissect_isis_lsp_clv_mt_cap_spbm_service_identifier(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, int subtype, int sublen) { const int BMAC_LEN = 6; /* B-MAC Address */ const int BVID_LEN = 2; /* Base-VID */ const int BMAC_OFFSET = 0; const int BVID_OFFSET = BMAC_OFFSET + BMAC_LEN; const int FIXED_LEN = BVID_OFFSET + BVID_LEN; const int ISID_LEN = 4; static int * const lsp_cap_spbm_service_identifier[] = { &hf_isis_lsp_mt_cap_spbm_service_identifier_t, &hf_isis_lsp_mt_cap_spbm_service_identifier_r, &hf_isis_lsp_mt_cap_spbm_service_identifier_reserved, NULL }; if (sublen < FIXED_LEN) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_short_clv, tvb, offset, -1, "Short SPBM Service Identifier and Unicast Address subTLV (%d vs %d)", sublen, FIXED_LEN); return; } else { proto_tree *subtree; int subofs = offset; /*************************/ subtree = proto_tree_add_subtree_format( tree, tvb, offset-2, sublen+2, ett_isis_lsp_clv_mt_cap_spbm_service_identifier, NULL, "SPB Service ID and Unicast Address: Type: 0x%02x, Length: %d", subtype, sublen); /*************************/ proto_tree_add_item(subtree, hf_isis_lsp_mt_cap_spbm_service_identifier_b_mac, tvb, subofs + BMAC_OFFSET, BMAC_LEN, ENC_NA); proto_tree_add_item(subtree, hf_isis_lsp_mt_cap_spbm_service_identifier_base_vid, tvb, subofs + BVID_OFFSET, BVID_LEN, ENC_BIG_ENDIAN); subofs += FIXED_LEN; sublen -= FIXED_LEN; /*************************/ while (sublen > 0) { if (sublen < ISID_LEN) { proto_tree_add_expert_format(subtree, pinfo, &ei_isis_lsp_short_clv, tvb, offset, -1, "Short ISID entry (%d vs %d)", sublen, 4); return; } else { proto_tree_add_bitmask_list(subtree, tvb, subofs, 1, lsp_cap_spbm_service_identifier, ENC_BIG_ENDIAN); subofs += 1; sublen -= 1; proto_tree_add_item(subtree, hf_isis_lsp_mt_cap_spbm_service_identifier_i_sid, tvb, subofs, 3, ENC_BIG_ENDIAN); subofs += 3; sublen -= 3; } } } } static void dissect_isis_lsp_clv_mt_cap_spbv_mac_address(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, int subtype, int sublen) { static int * const lsp_spb_short_mac_address[] = { &hf_isis_lsp_spb_short_mac_address_t, &hf_isis_lsp_spb_short_mac_address_r, &hf_isis_lsp_spb_short_mac_address_reserved, NULL }; if (sublen < 2) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_short_clv, tvb, offset, -1, "Short SPBV Mac Address subTLV (%d vs %d)", sublen, 2); return; } else { proto_tree *subtree; int subofs = offset; /*************************/ subtree = proto_tree_add_subtree_format( tree, tvb, offset-2, sublen+2, ett_isis_lsp_clv_mt_cap_spbv_mac_address, NULL, "SPBV Mac Address: Type: 0x%02x, Length: %d", subtype, sublen); /*************************/ proto_tree_add_item(subtree, hf_isis_lsp_spb_reserved, tvb, subofs, 2, ENC_BIG_ENDIAN); proto_tree_add_item(subtree, hf_isis_lsp_spb_sr_bit, tvb, subofs, 2, ENC_BIG_ENDIAN); proto_tree_add_item(subtree, hf_isis_lsp_spb_spvid, tvb, subofs, 2, ENC_BIG_ENDIAN); subofs += 2; sublen -= 2; /*************************/ while (sublen > 0) { if (sublen < 7) { proto_tree_add_expert_format(subtree, pinfo, &ei_isis_lsp_short_clv, tvb, offset, -1, "Short MAC Address entry (%d vs %d)", sublen, 7); return; } else { proto_tree_add_bitmask_list(subtree, tvb, subofs, 1, lsp_spb_short_mac_address, ENC_BIG_ENDIAN); subofs += 1; sublen -= 1; proto_tree_add_item(subtree, hf_isis_lsp_spb_short_mac_address, tvb, subofs, 6, ENC_NA); subofs += 6; sublen -= 6; } } } } /* * Name: dissect_lsp_clv_mt_cap() * * Description: Decode an ISIS MT-CAP CLV - code 144. * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : proto tree to build on (may be null) * int : current offset into packet data * int : length of IDs in packet. * int : length of this clv * * Output: * void, will modify proto_tree if not null. */ static void dissect_isis_lsp_clv_mt_cap(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset, isis_data_t *isis _U_, int length) { if (length >= 2) { /* mtid */ proto_tree_add_item( tree, hf_isis_lsp_mt_cap_mtid, tvb, offset, 2, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_isis_lsp_mt_cap_overload, tvb, offset, 2, ENC_BIG_ENDIAN); length -= 2; offset += 2; while (length >= 2) { guint8 subtype = tvb_get_guint8(tvb, offset); guint8 subtlvlen = tvb_get_guint8(tvb, offset+1); length -= 2; offset += 2; if (subtlvlen > length) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_short_clv, tvb, offset-2, -1, "Short type %d TLV (%d vs %d)", subtype, subtlvlen, length); return; } if (subtype == 0x01) { /* SPB Instance */ dissect_isis_lsp_clv_mt_cap_spb_instance(tvb, pinfo, tree, offset, subtype, subtlvlen); } else if (subtype == 0x02) { /* OALG */ dissect_isis_lsp_clv_mt_cap_spb_oalg(tvb, tree, offset, subtype, subtlvlen); } else if (subtype == 0x03) { /* SPBM Service Identifier */ dissect_isis_lsp_clv_mt_cap_spbm_service_identifier(tvb, pinfo, tree, offset, subtype, subtlvlen); } else if (subtype == 0x04) { /* SPBV Mac Address */ dissect_isis_lsp_clv_mt_cap_spbv_mac_address(tvb, pinfo, tree, offset, subtype, subtlvlen); } else if (dissect_isis_trill_clv(tvb, pinfo, tree, offset, subtype, subtlvlen)==-1) { proto_tree_add_expert_format( tree, pinfo, &ei_isis_lsp_subtlv, tvb, offset-2, subtlvlen+2, "Unknown SubTlv: Type: %d, Length: %d", subtype, subtlvlen); } length -= subtlvlen; offset += subtlvlen; } } } /* * Name: dissect_isis_lsp_clv_sid_label_binding() * * Description: Decode an ISIS SID/LABEL binding - code 149. * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : proto tree to build on (may be null) * int : current offset into packet data * int : length of IDs in packet. * int : length of this clv * * Output: * void, will modify proto_tree if not null. */ static void dissect_isis_lsp_clv_sid_label_binding(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset, isis_data_t *isis _U_, int length) { proto_item *ti_subclvs = NULL; proto_tree *subtree = NULL; int tlv_offset = 0; int sub_tlv_len = 0; int i = 0; guint8 clv_pref_l = 0; guint clv_code; guint clv_len; static int * const lsp_sl_flags[] = { &hf_isis_lsp_sl_binding_flags_f, &hf_isis_lsp_sl_binding_flags_m, &hf_isis_lsp_sl_binding_flags_s, &hf_isis_lsp_sl_binding_flags_d, &hf_isis_lsp_sl_binding_flags_a, &hf_isis_lsp_sl_binding_flags_rsv, NULL }; static int * const lsp_sl_sub_tlv_flags[] = { &hf_isis_lsp_sl_sub_tlv_flags_r, &hf_isis_lsp_sl_sub_tlv_flags_n, &hf_isis_lsp_sl_sub_tlv_flags_p, &hf_isis_lsp_sl_sub_tlv_flags_e, &hf_isis_lsp_sl_sub_tlv_flags_v, &hf_isis_lsp_sl_sub_tlv_flags_l, &hf_isis_lsp_sl_sub_tlv_flags_rsv, NULL }; if ( length <= 0 ) { return; } tlv_offset = offset; proto_tree_add_bitmask(tree, tvb, tlv_offset, hf_isis_lsp_sl_binding_flags, ett_isis_lsp_sl_flags, lsp_sl_flags, ENC_NA); tlv_offset++; proto_tree_add_item(tree, hf_isis_lsp_sl_binding_weight, tvb, tlv_offset, 1, ENC_BIG_ENDIAN); tlv_offset++; proto_tree_add_item(tree, hf_isis_lsp_sl_binding_range, tvb, tlv_offset, 2, ENC_BIG_ENDIAN); tlv_offset = tlv_offset+2; proto_tree_add_item(tree, hf_isis_lsp_sl_binding_prefix_length, tvb, tlv_offset, 1, ENC_BIG_ENDIAN); clv_pref_l = tvb_get_guint8(tvb, tlv_offset); tlv_offset++; if (clv_pref_l == 32) { proto_tree_add_item(tree, hf_isis_lsp_sl_binding_fec_prefix_ipv4, tvb, tlv_offset, clv_pref_l/8, ENC_NA); } else if (clv_pref_l == 128) { proto_tree_add_item(tree, hf_isis_lsp_sl_binding_fec_prefix_ipv6, tvb, tlv_offset, clv_pref_l/8, ENC_NA); } else { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_malformed_subtlv, tvb, tlv_offset, -1, "Prefix address format unknown length : %d",clv_pref_l); } tlv_offset = tlv_offset+(clv_pref_l/8); sub_tlv_len = length - (5+clv_pref_l/8); while (i < sub_tlv_len) { clv_code = tvb_get_guint8(tvb, i+tlv_offset); clv_len = tvb_get_guint8(tvb, i+1+tlv_offset); ti_subclvs = proto_tree_add_item(tree, hf_isis_lsp_sl_sub_tlv, tvb, tlv_offset, clv_len+2, ENC_NA); proto_item_append_text(ti_subclvs, " %s", val_to_str(clv_code, isis_lsp_sl_sub_tlv_vals, "Unknown capability sub-tlv type")); subtree = proto_item_add_subtree(ti_subclvs, ett_isis_lsp_sl_sub_tlv); proto_tree_add_item(subtree, hf_isis_lsp_sl_sub_tlv_type, tvb, i+tlv_offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(subtree, hf_isis_lsp_sl_sub_tlv_length, tvb, i+1+tlv_offset, 1, ENC_BIG_ENDIAN); switch (clv_code) { case ISIS_LSP_SL_SUB_SID_LABEL: switch (clv_len) { case 3 : proto_tree_add_item(subtree, hf_isis_lsp_sl_sub_tlv_label_20, tvb, i+2+tlv_offset, clv_len, ENC_BIG_ENDIAN); break; case 4 : proto_tree_add_item(subtree, hf_isis_lsp_sl_sub_tlv_label_32, tvb, i+2+tlv_offset, clv_len, ENC_BIG_ENDIAN); break; default : proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_malformed_subtlv, tvb, i+2+tlv_offset, -1, "Label badly formatted"); break; } break; case ISIS_LSP_SL_SUB_PREFIX_SID: { proto_tree_add_bitmask(subtree, tvb, i+2+tlv_offset, hf_isis_lsp_sl_sub_tlv_flags, ett_isis_lsp_sl_sub_tlv_flags, lsp_sl_sub_tlv_flags, ENC_NA); proto_tree_add_item(subtree, hf_isis_lsp_sl_sub_tlv_algorithm, tvb, i+2+tlv_offset+1, 1, ENC_BIG_ENDIAN); switch (clv_len-2) { case 3 : proto_tree_add_item(subtree, hf_isis_lsp_sl_sub_tlv_label_20, tvb, i+2+tlv_offset+2, clv_len-2, ENC_BIG_ENDIAN); break; case 4 : proto_tree_add_item(subtree, hf_isis_lsp_sl_sub_tlv_label_32, tvb, i+2+tlv_offset+2, clv_len-2, ENC_BIG_ENDIAN); break; default : proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_malformed_subtlv, tvb, i+2+tlv_offset+2, -1, "Label badly formatted"); break; } } break; default: proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_malformed_subtlv, tvb, i+2+tlv_offset, -1, "Sub TLV badly formatted, type unknown %d", clv_code); break; } i += clv_len + 2; } } /* * Name: dissect_lsp_authentication_clv() * * Description: * Decode for a lsp packets authentication clv. Calls into the * clv common one. * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : proto tree to build on (may be null) * int : current offset into packet data * int : length of IDs in packet. * int : length of this clv * * Output: * void, will modify proto_tree if not null. */ static void dissect_lsp_authentication_clv(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset, isis_data_t *isis _U_, int length) { isis_dissect_authentication_clv(tree, pinfo, tvb, hf_isis_lsp_authentication, hf_isis_clv_key_id, &ei_isis_lsp_authentication, offset, length); } /* * Name: dissect_lsp_ip_authentication_clv() * * Description: * Decode for a lsp packets authentication clv. Calls into the * clv common one. * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : proto tree to build on (may be null) * int : current offset into packet data * int : length of IDs in packet. * int : length of this clv * * Output: * void, will modify proto_tree if not null. */ static void dissect_lsp_ip_authentication_clv(tvbuff_t *tvb, packet_info* pinfo _U_, proto_tree *tree, int offset, isis_data_t *isis _U_, int length) { if ( length != 0 ) { proto_tree_add_item(tree, hf_isis_lsp_ip_authentication, tvb, offset, length, ENC_ASCII); } } /* * Name: dissect_lsp_area_address_clv() * * Description: * Decode for a lsp packet's area address clv. Call into clv common * one. * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : protocol display tree to fill out. May be NULL * int : offset into packet data where we are. * int : length of IDs in packet. * int : length of clv we are decoding * * Output: * void, but we will add to proto tree if !NULL. */ static void dissect_lsp_area_address_clv(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset, isis_data_t *isis _U_, int length) { isis_dissect_area_address_clv(tree, pinfo, tvb, &ei_isis_lsp_short_clv, hf_isis_lsp_area_address, offset, length); } /* * Name: dissect_lsp_eis_neighbors_clv_inner() * * Description: * Real work horse for showing neighbors. This means we decode the * first octet as either virtual/!virtual (if show_virtual param is * set), or as a must == 0 reserved value. * * Once past that, we decode n neighbor elements. Each neighbor * is comprised of a metric block (is dissect_metric) and the * addresses. * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : protocol display tree to fill out. May be NULL * int : offset into packet data where we are. * int : length of IDs in packet. * int : length of clv we are decoding * int : set to decode first octet as virtual vs reserved == 0 * int : set to indicate EIS instead of IS (6 octet per addr instead of 7) * * Output: * void, but we will add to proto tree if !NULL. */ static void dissect_lsp_eis_neighbors_clv_inner(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, int length, guint id_length, int show_virtual, int is_eis) { proto_item *ti; proto_tree *ntree = NULL; int tlen; if (!is_eis) { id_length++; /* IDs are one octet longer in IS neighbours */ if ( tree ) { if ( show_virtual ) { /* virtual path flag */ proto_tree_add_item( tree, hf_isis_lsp_is_virtual, tvb, offset, 1, ENC_NA); } else { proto_tree_add_item(tree, hf_isis_lsp_eis_neighbors_reserved, tvb, offset, 1, ENC_BIG_ENDIAN); } } offset++; length--; } tlen = 4 + id_length; while ( length > 0 ) { if (lengthpool, tvb, offset+4, id_length)); } offset += tlen; length -= tlen; } } /* * Name: dissect_lsp_l1_is_neighbors_clv() * * Description: * Dispatch a l1 intermediate system neighbor by calling * the inner function with show virtual set to TRUE and is es set to FALSE. * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : protocol display tree to fill out. May be NULL * int : offset into packet data where we are. * int : length of IDs in packet. * int : length of clv we are decoding * * Output: * void, but we will add to proto tree if !NULL. */ static void dissect_lsp_l1_is_neighbors_clv(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset, isis_data_t *isis, int length) { dissect_lsp_eis_neighbors_clv_inner(tvb, pinfo, tree, offset, length, isis->system_id_len, TRUE, FALSE); } /* * Name: dissect_lsp_l1_es_neighbors_clv() * * Description: * Dispatch a l1 end or intermediate system neighbor by calling * the inner function with show virtual set to TRUE and es set to TRUE. * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : protocol display tree to fill out. May be NULL * int : offset into packet data where we are. * int : length of IDs in packet. * int : length of clv we are decoding * * Output: * void, but we will add to proto tree if !NULL. */ static void dissect_lsp_l1_es_neighbors_clv(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset, isis_data_t *isis, int length) { dissect_lsp_eis_neighbors_clv_inner(tvb, pinfo, tree, offset, length, isis->system_id_len, TRUE, TRUE); } /* * Name: dissect_lsp_l2_is_neighbors_clv() * * Description: * Dispatch a l2 intermediate system neighbor by calling * the inner function with show virtual set to FALSE, and is es set * to FALSE * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : protocol display tree to fill out. May be NULL * int : offset into packet data where we are. * int : length of IDs in packet. * int : length of clv we are decoding * * Output: * void, but we will add to proto tree if !NULL. */ static void dissect_lsp_l2_is_neighbors_clv(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset, isis_data_t *isis, int length) { dissect_lsp_eis_neighbors_clv_inner(tvb, pinfo, tree, offset, length, isis->system_id_len, FALSE, FALSE); } /* * Name: dissect_lsp_instance_identifier_clv() * * Description: * Decode for a lsp packets Instance Identifier clv. * Calls into the CLV common one. * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : proto tree to build on (may be null) * int : current offset into packet data * int : length of IDs in packet. * int : length of this clv * * Output: * void, will modify proto_tree if not null. */ static void dissect_lsp_instance_identifier_clv(tvbuff_t *tvb, packet_info* pinfo _U_, proto_tree *tree, int offset, isis_data_t *isis _U_, int length) { isis_dissect_instance_identifier_clv(tree, pinfo, tvb, &ei_isis_lsp_short_clv, hf_isis_lsp_instance_identifier, hf_isis_lsp_supported_itid, offset, length); } /* * Name: dissect_subclv_admin_group () * * Description: Called by function dissect_lsp_ext_is_reachability_clv(). * * This function is called by dissect_lsp_ext_is_reachability_clv() * for dissect the administrative group sub-CLV (code 3). * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : protocol display tree to fill out. * int : offset into packet data where we are (beginning of the sub_clv value). * * Output: * void */ static void dissect_subclv_admin_group (tvbuff_t *tvb, proto_tree *tree, int offset) { proto_tree *ntree; guint32 clv_value; guint32 mask; int i; ntree = proto_tree_add_subtree(tree, tvb, offset-2, 6, ett_isis_lsp_subclv_admin_group, NULL, "Administrative group(s):"); clv_value = tvb_get_ntohl(tvb, offset); mask = 1; for (i = 0 ; i < 32 ; i++) { if ( (clv_value & mask) != 0 ) { proto_tree_add_uint_format(ntree, hf_isis_lsp_group, tvb, offset, 4, clv_value & mask, "group %d", i); } mask <<= 1; } } /* * Name: dissect_subclv_max_bw () * * Description: Called by function dissect_lsp_ext_is_reachability_clv(). * * This function is called by dissect_lsp_ext_is_reachability_clv() * for dissect the maximum link bandwidth sub-CLV (code 9). * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : protocol display tree to fill out. * int : offset into packet data where we are (beginning of the sub_clv value). * * Output: * void */ static void dissect_subclv_max_bw(tvbuff_t *tvb, proto_tree *tree, int offset) { gfloat bw; bw = tvb_get_ntohieee_float(tvb, offset)*8/1000000; proto_tree_add_float_format_value(tree, hf_isis_lsp_maximum_link_bandwidth, tvb, offset-2, 6, bw, "%.2f Mbps", bw); } /* * Name: dissect_subclv_rsv_bw () * * Description: Called by function dissect_lsp_ext_is_reachability_clv(). * * This function is called by dissect_lsp_ext_is_reachability_clv() * for dissect the reservable link bandwidth sub-CLV (code 10). * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : protocol display tree to fill out. * int : offset into packet data where we are (beginning of the sub_clv value). * * Output: * void */ static void dissect_subclv_rsv_bw(tvbuff_t *tvb, proto_tree *tree, int offset) { gfloat bw; bw = tvb_get_ntohieee_float(tvb, offset)*8/1000000; proto_tree_add_float_format_value (tree, hf_isis_lsp_reservable_link_bandwidth, tvb, offset-2, 6, bw, "%.2f Mbps", bw ); } /* * Name: dissect_subclv_unrsv_bw () * * Description: Called by function dissect_lsp_ext_is_reachability_clv(). * * This function is called by dissect_lsp_ext_is_reachability_clv() * for dissect the unreserved bandwidth sub-CLV (code 11). * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : protocol display tree to fill out. * int : offset into packet data where we are (beginning of the sub_clv value). * * Output: * void */ static void dissect_subclv_unrsv_bw(tvbuff_t *tvb, proto_tree *tree, int offset) { proto_tree *ntree; gfloat bw; int i; ntree = proto_tree_add_subtree(tree, tvb, offset-2, 34, ett_isis_lsp_subclv_unrsv_bw, NULL, "Unreserved bandwidth:"); for (i = 0 ; i < 8 ; i++) { bw = tvb_get_ntohieee_float(tvb, offset+4*i)*8/1000000; proto_tree_add_float_format(ntree, hf_isis_lsp_unrsv_bw_priority_level, tvb, offset+4*i, 4, bw, "priority level %d: %.2f Mbps", i, bw ); } } /* * Name: dissect_subclv_bw_ct () * * Description: Called by function dissect_lsp_ext_is_reachability_clv(). * * This function is called by dissect_lsp_ext_is_reachability_clv() * for dissect the Bandwidth Constraints sub-CLV (code 22). * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : protocol display tree to fill out. * int : offset into packet data where we are (beginning of the sub_clv value). * * Output: * void */ static void dissect_subclv_bw_ct(tvbuff_t *tvb, proto_tree *tree, int offset, int sublen) { proto_tree *ntree; int offset_end = offset + sublen; gfloat bw; ntree = proto_tree_add_subtree(tree, tvb, offset-2, sublen, ett_isis_lsp_subclv_bw_ct, NULL, "Bandwidth Constraints:"); proto_tree_add_item(ntree, hf_isis_lsp_bw_ct_model, tvb, offset, 1, ENC_BIG_ENDIAN); offset +=1; proto_tree_add_item(ntree, hf_isis_lsp_bw_ct_reserved, tvb, offset, 3, ENC_BIG_ENDIAN); offset +=3; if(offset < offset_end){ bw = tvb_get_ntohieee_float(tvb, offset)*8/1000000; proto_tree_add_float_format_value(ntree, hf_isis_lsp_bw_ct0, tvb, offset, 4, bw, "%.2f Mbps", bw); offset += 4; } if(offset < offset_end){ bw = tvb_get_ntohieee_float(tvb, offset)*8/1000000; proto_tree_add_float_format_value(ntree, hf_isis_lsp_bw_ct1, tvb, offset, 4, bw, "%.2f Mbps", bw); offset += 4; } if(offset < offset_end){ bw = tvb_get_ntohieee_float(tvb, offset)*8/1000000; proto_tree_add_float_format_value(ntree, hf_isis_lsp_bw_ct2, tvb, offset, 4, bw, "%.2f Mbps", bw); offset += 4; } if(offset < offset_end){ bw = tvb_get_ntohieee_float(tvb, offset)*8/1000000; proto_tree_add_float_format_value(ntree, hf_isis_lsp_bw_ct3, tvb, offset, 4, bw, "%.2f Mbps", bw); offset += 4; } if(offset < offset_end){ bw = tvb_get_ntohieee_float(tvb, offset)*8/1000000; proto_tree_add_float_format_value(ntree, hf_isis_lsp_bw_ct4, tvb, offset, 4, bw, "%.2f Mbps", bw); offset += 4; } if(offset < offset_end){ bw = tvb_get_ntohieee_float(tvb, offset)*8/1000000; proto_tree_add_float_format_value(ntree, hf_isis_lsp_bw_ct5, tvb, offset, 4, bw, "%.2f Mbps", bw); offset += 4; } if(offset < offset_end){ bw = tvb_get_ntohieee_float(tvb, offset)*8/1000000; proto_tree_add_float_format_value(ntree, hf_isis_lsp_bw_ct6, tvb, offset, 4, bw, "%.2f Mbps", bw); offset += 4; } if(offset < offset_end){ bw = tvb_get_ntohieee_float(tvb, offset)*8/1000000; proto_tree_add_float_format_value(ntree, hf_isis_lsp_bw_ct7, tvb, offset, 4, bw, "%.2f Mbps", bw); /*offset += 4;*/ } } /* * Name: dissect_subclv_spb_link_metric () * * Description: Called by function dissect_lsp_ext_is_reachability_clv(). * * This function is called by dissect_lsp_ext_is_reachability_clv() * for dissect the SPB link metric sub-CLV (code 29). * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : protocol display tree to fill out. * int : offset into packet data where we are (beginning of the sub_clv value). * int : subtlv type * int : subtlv length * * Output: * void */ static void dissect_subclv_spb_link_metric(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, int subtype, int sublen) { const int SUBLEN = 6; if (sublen != SUBLEN) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_short_clv, tvb, offset, -1, "Short SPB Link Metric sub-TLV (%d vs %d)", sublen, SUBLEN); return; } else { proto_tree *subtree; subtree = proto_tree_add_subtree_format( tree, tvb, offset-2, sublen+2, ett_isis_lsp_subclv_spb_link_metric, NULL, "SPB Link Metric: Type: 0x%02x (%d), Length: %d", subtype, subtype, sublen); proto_tree_add_item(subtree, hf_isis_lsp_spb_link_metric, tvb, offset, 3, ENC_BIG_ENDIAN); proto_tree_add_item(subtree, hf_isis_lsp_spb_port_count, tvb, offset+3, 1, ENC_BIG_ENDIAN); proto_tree_add_item(subtree, hf_isis_lsp_spb_port_id, tvb, offset+4, 2, ENC_BIG_ENDIAN); } } /* * Name : dissect_subclv_ext_admin_group() * * Description : called by function dissect_sub_clv_tlv_22_22_23_141_222_223() * * Dissects Extended Administrative Groups subclv * * Input : * tvbuff_t * : tvbuffer for packet data * proto_tree * : protocol display tree to fill out. * int : offset into packet data where we are (beginning of the sub_clv value). * int : subtlv type * int : subtlv length * * Output: * void */ static void dissect_subclv_ext_admin_group(tvbuff_t *tvb, proto_tree *tree, int offset, int subtype _U_, int sublen) { int i; guint32 admin_group; /* Number of Extended Admin Groups */ for (i = 0; i < (sublen / 4); i++) { admin_group = tvb_get_guint32(tvb, offset + (i * 4), ENC_BIG_ENDIAN); proto_tree_add_uint_format(tree, hf_isis_lsp_clv_ext_admin_group, tvb, offset + (i * 4), 4, admin_group, "Extended Admin Group[%d]: 0x%08x", i, admin_group); } } /* * Name : dissect_subclv_adj_sid() * * Description : called by function dissect_sub_clv_tlv_22_22_23_141_222_223() * * Dissects LAN-Adj-SID & Adj-SID subclv * * Input : * tvbuff_t * : tvbuffer for packet data * proto_tree * : protocol display tree to fill out. * int : offset into packet data where we are (beginning of the sub_clv value). * int : subtlv type * int : subtlv length * * Output: * void */ static void dissect_subclv_adj_sid(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int local_offset, int subtype, int sublen) { int offset = local_offset; proto_item *ti; int sli_len; guint8 flags; flags = tvb_get_guint8(tvb, offset); proto_tree_add_bitmask(tree, tvb, offset, hf_isis_lsp_adj_sid_flags, ett_isis_lsp_adj_sid_flags, adj_sid_flags, ENC_BIG_ENDIAN); offset++; proto_tree_add_item(tree, hf_isis_lsp_adj_sid_weight, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; /* Only present in LAN-Adj-SID, not Adj-SID */ if (subtype == 32) { proto_tree_add_item(tree, hf_isis_lsp_adj_sid_system_id, tvb, offset, 6, ENC_NA); offset += 6; } sli_len = local_offset + sublen - offset; switch(sli_len) { case 3: if (!((flags & 0x30) == 0x30)) proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_malformed_subtlv, tvb, local_offset, sublen, "V & L flags must be set"); proto_tree_add_item(tree, hf_isis_lsp_sid_sli_label, tvb, offset, sli_len, ENC_BIG_ENDIAN); break; case 4: if (flags & 0x30) proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_malformed_subtlv, tvb, local_offset, sublen, "V & L flags must be unset"); proto_tree_add_item(tree, hf_isis_lsp_sid_sli_index, tvb, offset, sli_len, ENC_BIG_ENDIAN); break; case 16: if (!(flags & 0x20)) proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_malformed_subtlv, tvb, local_offset, sublen, "V flag must be set"); ti = proto_tree_add_item(tree, hf_isis_lsp_sid_sli_ipv6, tvb, offset, sli_len, ENC_NA); /* L flag set */ if (flags & 0x10) proto_item_append_text(ti, "Globally unique"); break; default: break; } /*offset += sli_len;*/ } /* * Name: dissect_sub_clv_tlv_22_22_23_141_222_223 * * Description: Decode a sub tlv's for all those tlv * * CALLED BY TLV 22,23,141,222,223 DISSECTOR * * Input: * tvbuff_t * : tvbuffer for packet data * packet_info * : expert error misuse reporting * proto_tree * : protocol display tree to fill out. May be NULL * int : offset into packet data where we are. * int : sub-tlv length * int : length of clv we are decoding * * Output: * void */ static void dissect_sub_clv_tlv_22_22_23_141_222_223(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset, int subclvs_len) { proto_item *ti_subclvs = NULL; proto_tree *subtree = NULL; int sub_tlv_offset = 0; int i = 0; guint clv_code, clv_len; int local_offset, local_len; proto_item *ti; gfloat percentage; guint8 sabm_length = 0, udabm_length = 0; while (i < subclvs_len) { /* offset for each sub-TLV */ sub_tlv_offset = offset + i; subtree = proto_tree_add_subtree(tree, tvb, sub_tlv_offset, 0, ett_isis_lsp_part_of_clv_ext_is_reachability_subtlv, &ti_subclvs, "subTLV"); proto_tree_add_item(subtree, hf_isis_lsp_ext_is_reachability_code, tvb, sub_tlv_offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(subtree, hf_isis_lsp_ext_is_reachability_len, tvb, sub_tlv_offset+1, 1, ENC_BIG_ENDIAN); clv_code = tvb_get_guint8(tvb, sub_tlv_offset); clv_len = tvb_get_guint8(tvb, sub_tlv_offset+1); proto_item_append_text(ti_subclvs, ": %s (c=%u, l=%u)", val_to_str(clv_code, isis_lsp_ext_is_reachability_code_vals, "Unknown"), clv_code, clv_len); proto_item_set_len(ti_subclvs, clv_len+2); sub_tlv_offset += 2; switch (clv_code) { case 3 : dissect_subclv_admin_group(tvb, subtree, sub_tlv_offset); break; case 4 : proto_tree_add_item(subtree, hf_isis_lsp_ext_is_reachability_link_local_identifier, tvb, sub_tlv_offset, 4, ENC_BIG_ENDIAN); proto_tree_add_item(subtree, hf_isis_lsp_ext_is_reachability_link_remote_identifier, tvb, sub_tlv_offset + 4, 4, ENC_BIG_ENDIAN); break; case 6 : proto_tree_add_item(subtree, hf_isis_lsp_ext_is_reachability_ipv4_interface_address, tvb, sub_tlv_offset, 4, ENC_BIG_ENDIAN); break; case 8 : proto_tree_add_item(subtree, hf_isis_lsp_ext_is_reachability_ipv4_neighbor_address, tvb, sub_tlv_offset, 4, ENC_BIG_ENDIAN); break; case 9 : dissect_subclv_max_bw(tvb, subtree, sub_tlv_offset); break; case 10: dissect_subclv_rsv_bw(tvb, subtree, sub_tlv_offset); break; case 11: dissect_subclv_unrsv_bw(tvb, subtree, sub_tlv_offset); break; case 12: proto_tree_add_item(subtree, hf_isis_lsp_ext_is_reachability_ipv6_interface_address, tvb, sub_tlv_offset, 16, ENC_NA); break; case 13: proto_tree_add_item(subtree, hf_isis_lsp_ext_is_reachability_ipv6_neighbor_address, tvb, sub_tlv_offset, 16, ENC_NA); break; case 14: /* Extended Administrative Groups (rfc7308) */ dissect_subclv_ext_admin_group(tvb, subtree, sub_tlv_offset, clv_code, clv_len); break; case 15: /* Link MSD */ local_offset = sub_tlv_offset; local_len = clv_len; while (local_len >= 2) { proto_tree_add_item(subtree, hf_isis_lsp_clv_igp_msd_type, tvb, local_offset, 1, ENC_NA); proto_tree_add_item(subtree, hf_isis_lsp_clv_igp_msd_value, tvb, local_offset+1, 1, ENC_NA); local_len -= 2; local_offset += 2; } break; case 16: /* Application-Specific Link Attributes (rfc8919) */ local_offset = sub_tlv_offset; local_len = clv_len; proto_tree_add_item(subtree, hf_isis_lsp_clv_app_sabm_legacy, tvb, local_offset, 1, ENC_NA); sabm_length = tvb_get_guint8(tvb, local_offset) & 0x7f; proto_tree_add_uint(subtree, hf_isis_lsp_clv_app_sabm_length, tvb, local_offset, 1, sabm_length); proto_tree_add_item(subtree, hf_isis_lsp_clv_app_udabm_reserved, tvb, local_offset + 1, 1, ENC_NA); udabm_length = tvb_get_guint8(tvb, local_offset + 1) & 0x7f; proto_tree_add_uint(subtree, hf_isis_lsp_clv_app_udabm_length, tvb, local_offset + 1, 1, udabm_length); local_offset += 2; local_len -= 2; if (sabm_length > 0) { proto_tree_add_bitmask(subtree, tvb, local_offset, hf_isis_lsp_clv_app_sabm_bits, ett_isis_lsp_clv_app_sabm_bits, isis_lsp_app_sabm_bits, ENC_NA); local_offset += sabm_length; local_len -= sabm_length; } if (udabm_length > 0) { proto_tree_add_item(subtree, hf_isis_lsp_clv_app_udabm_bits, tvb, local_offset, udabm_length, ENC_NA); local_offset += udabm_length; local_len -= udabm_length; } if (local_len > 2) { /* Dissect Link Attribute sub-sub-TLVs */ dissect_sub_clv_tlv_22_22_23_141_222_223(tvb, pinfo, subtree, local_offset, local_len); } break; case 18: proto_tree_add_item(subtree, hf_isis_lsp_ext_is_reachability_traffic_engineering_default_metric, tvb, sub_tlv_offset, 3, ENC_BIG_ENDIAN); break; case 22: dissect_subclv_bw_ct(tvb, subtree, sub_tlv_offset, clv_len); break; case 29: dissect_subclv_spb_link_metric(tvb, pinfo, subtree, sub_tlv_offset, clv_code, clv_len); break; case 31: case 32: dissect_subclv_adj_sid(tvb, pinfo, subtree, sub_tlv_offset, clv_code, clv_len); break; case 33: /* Unidirectional Link Delay (rfc8570) */ proto_tree_add_bitmask(subtree, tvb, sub_tlv_offset, hf_isis_lsp_ext_is_reachability_unidir_link_flags, ett_isis_lsp_clv_unidir_link_flags, unidir_link_flags, ENC_NA); proto_tree_add_item(subtree, hf_isis_lsp_ext_is_reachability_unidir_link_delay, tvb, sub_tlv_offset+1, 3, ENC_BIG_ENDIAN); break; case 34: /* Min/Max Unidirectional Link Delay (rfc8570) */ proto_tree_add_bitmask(subtree, tvb, sub_tlv_offset, hf_isis_lsp_ext_is_reachability_unidir_link_flags, ett_isis_lsp_clv_unidir_link_flags, unidir_link_flags, ENC_NA); proto_tree_add_item(subtree, hf_isis_lsp_ext_is_reachability_unidir_link_delay_min, tvb, sub_tlv_offset+1, 3, ENC_BIG_ENDIAN); proto_tree_add_item(subtree, hf_isis_lsp_ext_is_reachability_unidir_link_reserved, tvb, sub_tlv_offset+4, 1, ENC_NA); proto_tree_add_item(subtree, hf_isis_lsp_ext_is_reachability_unidir_link_delay_max, tvb, sub_tlv_offset+5, 3, ENC_BIG_ENDIAN); break; case 35: /* Unidirectional Delay Variation (rfc8570) */ proto_tree_add_item(subtree, hf_isis_lsp_ext_is_reachability_unidir_link_reserved, tvb, sub_tlv_offset, 1, ENC_NA); proto_tree_add_item(subtree, hf_isis_lsp_ext_is_reachability_unidir_delay_variation, tvb, sub_tlv_offset+1, 3, ENC_BIG_ENDIAN); break; case 36: /* Unidirectional Link Loss (rfc8570) */ proto_tree_add_bitmask(subtree, tvb, sub_tlv_offset, hf_isis_lsp_ext_is_reachability_unidir_link_flags, ett_isis_lsp_clv_unidir_link_flags, unidir_link_flags, ENC_NA); ti = proto_tree_add_item(subtree, hf_isis_lsp_ext_is_reachability_unidir_link_loss, tvb, sub_tlv_offset+1, 3, ENC_BIG_ENDIAN); if (ti) { percentage = (gfloat)tvb_get_guint24(tvb, sub_tlv_offset+1, ENC_BIG_ENDIAN); proto_item_append_text(ti, " (%f %%)", percentage * 0.000003); } break; case 37: /* 37: Unidirectional Residual Bandwidth (rfc8570) */ proto_tree_add_item(subtree, hf_isis_lsp_ext_is_reachability_unidir_residual_bandwidth, tvb, sub_tlv_offset, 4, ENC_BIG_ENDIAN); break; case 38: /* 38: Unidirectional Available Bandwidth (rfc8570) */ proto_tree_add_item(subtree, hf_isis_lsp_ext_is_reachability_unidir_available_bandwidth, tvb, sub_tlv_offset, 4, ENC_BIG_ENDIAN); break; case 39: /* 39: Unidirectional Utilized Bandwidth (rfc8570) */ proto_tree_add_item(subtree, hf_isis_lsp_ext_is_reachability_unidir_utilized_bandwidth, tvb, sub_tlv_offset, 4, ENC_BIG_ENDIAN); break; case 43: /* SRv6 End.X SID */ proto_tree_add_bitmask(subtree, tvb, sub_tlv_offset, hf_isis_lsp_clv_srv6_endx_sid_flags, ett_isis_lsp_clv_srv6_endx_sid_flags, srv6_endx_sid_flags, ENC_BIG_ENDIAN); proto_tree_add_item(subtree, hf_isis_lsp_clv_srv6_endx_sid_alg, tvb, sub_tlv_offset+1, 1, ENC_NA); proto_tree_add_item(subtree, hf_isis_lsp_clv_srv6_endx_sid_weight, tvb, sub_tlv_offset+2, 1, ENC_BIG_ENDIAN); proto_tree_add_item(subtree, hf_isis_lsp_clv_srv6_endx_sid_endpoint_func, tvb, sub_tlv_offset+3, 2, ENC_NA); proto_tree_add_item(subtree, hf_isis_lsp_clv_srv6_endx_sid_sid, tvb, sub_tlv_offset+5, 16, ENC_NA); proto_tree_add_item(subtree, hf_isis_lsp_clv_srv6_endx_sid_subsubclvs_len, tvb, sub_tlv_offset+21, 1, ENC_NA); break; case 44: /* SRv6 LAN End.X SID */ proto_tree_add_item(subtree, hf_isis_lsp_clv_srv6_endx_sid_system_id, tvb, sub_tlv_offset, 6, ENC_NA); proto_tree_add_bitmask(subtree, tvb, sub_tlv_offset+6, hf_isis_lsp_clv_srv6_endx_sid_flags, ett_isis_lsp_clv_srv6_endx_sid_flags, srv6_endx_sid_flags, ENC_BIG_ENDIAN); proto_tree_add_item(subtree, hf_isis_lsp_clv_srv6_endx_sid_alg, tvb, sub_tlv_offset+7, 1, ENC_NA); proto_tree_add_item(subtree, hf_isis_lsp_clv_srv6_endx_sid_weight, tvb, sub_tlv_offset+8, 1, ENC_BIG_ENDIAN); proto_tree_add_item(subtree, hf_isis_lsp_clv_srv6_endx_sid_endpoint_func, tvb, sub_tlv_offset+9, 2, ENC_NA); proto_tree_add_item(subtree, hf_isis_lsp_clv_srv6_endx_sid_sid, tvb, sub_tlv_offset+11, 16, ENC_NA); proto_tree_add_item(subtree, hf_isis_lsp_clv_srv6_endx_sid_subsubclvs_len, tvb, sub_tlv_offset+27, 1, ENC_NA); break; default: proto_tree_add_item(subtree, hf_isis_lsp_ext_is_reachability_value, tvb, sub_tlv_offset, clv_len, ENC_NA); break; } i += clv_len + 2; } } /* * Name: dissect_lsp_ext_is_reachability_clv() * * Description: Decode a Extended IS Reachability CLV - code 22 * RFC 3784 * * The extended IS reachability TLV is an extended version * of the IS reachability TLV (code 2). It encodes the metric * as a 24-bit unsigned integer and allows to add sub-CLV(s). * * CALLED BY TLV 222 DISSECTOR * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : protocol display tree to fill out. May be NULL * int : offset into packet data where we are. * int : length of IDs in packet. * int : length of clv we are decoding * * Output: * void, but we will add to proto tree if !NULL. */ static void dissect_lsp_ext_is_reachability_clv(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset, isis_data_t *isis _U_, int length) { proto_item *ti, *ti_subclvs_len; proto_tree *ntree = NULL; guint subclvs_len; guint len; while (length > 0) { ntree = proto_tree_add_subtree(tree, tvb, offset, -1, ett_isis_lsp_part_of_clv_ext_is_reachability, &ti, "IS Neighbor"); proto_tree_add_item(ntree, hf_isis_lsp_ext_is_reachability_is_neighbor_id, tvb, offset, 7, ENC_NA); proto_item_append_text(ti, ": %s", tvb_print_system_id(pinfo->pool, tvb, offset, 7)); proto_tree_add_item(ntree, hf_isis_lsp_ext_is_reachability_metric, tvb, offset+7, 3, ENC_BIG_ENDIAN); ti_subclvs_len = proto_tree_add_item(ntree, hf_isis_lsp_ext_is_reachability_subclvs_len, tvb, offset+10, 1, ENC_BIG_ENDIAN); subclvs_len = tvb_get_guint8(tvb, offset+10); if (subclvs_len == 0) { proto_item_append_text(ti_subclvs_len, " (no sub-TLVs present)"); } else { dissect_sub_clv_tlv_22_22_23_141_222_223(tvb, pinfo, ntree, offset + 11, subclvs_len); } len = 11 + subclvs_len; proto_item_set_len (ti, len); offset += len; length -= len; } } /* * Name: dissect_lsp_mt_reachable_IPv4_prefx_clv() * * Description: Decode Multi-Topology IPv4 Prefixes - code 235 * * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : protocol display tree to fill out. May be NULL * int : offset into packet data where we are. * int : length of IDs in packet. * int : length of clv we are decoding * * Output: * void, but we will add to proto tree if !NULL. */ static void dissect_lsp_mt_reachable_IPv4_prefx_clv(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset, isis_data_t *isis _U_, int length) { if (length < 2) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_short_clv, tvb, offset, -1, "short lsp multi-topology reachable IPv4 prefixes(%d vs %d)", length, 2 ); return; } dissect_lsp_mt_id(tvb, tree, offset); dissect_lsp_ext_ip_reachability_clv(tvb, pinfo, tree, offset+2, 0, length-2); } /* * Name: dissect_lsp_mt_reachable_IPv6_prefx_clv() * * Description: Decode Multi-Topology IPv6 Prefixes - code 237 * * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : protocol display tree to fill out. May be NULL * int : offset into packet data where we are. * int : length of IDs in packet. * int : length of clv we are decoding * * Output: * void, but we will add to proto tree if !NULL. */ static void dissect_lsp_mt_reachable_IPv6_prefx_clv(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset, isis_data_t *isis _U_, int length) { if (length < 2) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_short_clv, tvb, offset, -1, "short lsp multi-topology reachable IPv6 prefixes(%d vs %d)", length, 2 ); return; } dissect_lsp_mt_id(tvb, tree, offset); dissect_lsp_ipv6_reachability_clv(tvb, pinfo, tree, offset+2, 0, length-2); } /* * Name: dissect_lsp_mt_is_reachability_clv() * * Description: Decode Multi-Topology Intermediate Systems - code 222 * * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : protocol display tree to fill out. May be NULL * int : offset into packet data where we are. * int : unused * int : length of clv we are decoding * * Output: * void, but we will add to proto tree if !NULL. */ static void dissect_lsp_mt_is_reachability_clv(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset, isis_data_t *isis _U_, int length) { if (length < 2) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_short_clv, tvb, offset, -1, "short lsp reachability(%d vs %d)", length, 2 ); return; } /* * the MT ID value dissection is used in other LSPs so we push it * in a function */ dissect_lsp_mt_id(tvb, tree, offset); /* * fix here. No need to parse TLV 22 (with bugs) while it is * already done correctly!! */ dissect_lsp_ext_is_reachability_clv(tvb, pinfo, tree, offset+2, 0, length-2); } /* * Name: dissect_lsp_ori_buffersize_clv() * * Description: * This CLV is used give neighbor buffer size * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : protocol display tree to fill out. May be NULL * int : offset into packet data where we are. * int : length of IDs in packet. * int : length of clv we are decoding * * Output: * void, but we will add to proto tree if !NULL. */ static void dissect_lsp_ori_buffersize_clv(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset, isis_data_t *isis, int length) { if ( length != 2 ) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_short_clv, tvb, offset, -1, "short lsp partition DIS(%d vs %d)", length, isis->system_id_len ); return; } /* * Gotta build a sub-tree for all our pieces */ proto_tree_add_item(tree, hf_isis_lsp_originating_lsp_buffer_size, tvb, offset, length, ENC_BIG_ENDIAN); } /* * Name: dissect_lsp_partition_dis_clv() * * Description: * This CLV is used to indicate which system is the designated * IS for partition repair. This means just putting out the * "isis->system_id_len"-octet IS. * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : protocol display tree to fill out. May be NULL * int : offset into packet data where we are. * int : length of IDs in packet. * int : length of clv we are decoding * * Output: * void, but we will add to proto tree if !NULL. */ static void dissect_lsp_partition_dis_clv(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset, isis_data_t *isis, int length) { if ( length < isis->system_id_len ) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_short_clv, tvb, offset, -1, "short lsp partition DIS(%d vs %d)", length, isis->system_id_len ); return; } /* * Gotta build a sub-tree for all our pieces */ proto_tree_add_item( tree, hf_isis_lsp_partition_designated_l2_is, tvb, offset, isis->system_id_len, ENC_NA); length -= isis->system_id_len; offset += isis->system_id_len; if ( length > 0 ) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_long_clv, tvb, offset, -1, "Long lsp partition DIS, %d left over", length ); return; } } /* * Name: dissect_lsp_prefix_neighbors_clv() * * Description: * The prefix CLV describes what other (OSI) networks we can reach * and what their cost is. It is built from a metric block * (see dissect_metric) followed by n addresses. * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : protocol display tree to fill out. May be NULL * int : offset into packet data where we are. * int : length of IDs in packet. * int : length of clv we are decoding * * Output: * void, but we will add to proto tree if !NULL. */ static void dissect_lsp_prefix_neighbors_clv(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset, isis_data_t *isis _U_, int length) { char *sbuf; int mylen; if ( length < 4 ) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_short_clv, tvb, offset, -1, "Short lsp prefix neighbors (%d vs 4)", length ); return; } if ( tree ) { dissect_metric (tvb, pinfo, tree, offset, hf_isis_lsp_default, hf_isis_lsp_default_support, TRUE ); dissect_metric (tvb, pinfo, tree, offset+1, hf_isis_lsp_delay, hf_isis_lsp_delay_support, FALSE ); dissect_metric (tvb, pinfo, tree, offset+2, hf_isis_lsp_expense, hf_isis_lsp_expense_support, FALSE ); dissect_metric (tvb, pinfo, tree, offset+3, hf_isis_lsp_error, hf_isis_lsp_error_support, FALSE ); } offset += 4; length -= 4; while ( length > 0 ) { /* * This is a length in "semi-octets", i.e., in nibbles. */ mylen = tvb_get_guint8(tvb, offset); length--; if (length<=0) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_short_clv, tvb, offset, -1, "Zero payload space after length in prefix neighbor" ); return; } if ( mylen > length*2) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_long_clv, tvb, offset, -1, "Integral length of prefix neighbor too long (%d vs %d)", mylen, length*2 ); return; } /* * Lets turn the area address into "standard" 0000.0000.etc * format string. */ sbuf = print_address_prefix( pinfo->pool, tvb, offset+1, mylen ); /* and spit it out */ proto_tree_add_string( tree, hf_isis_lsp_area_address_str, tvb, offset, (mylen+1)/2 + 1, sbuf); offset += mylen + 1; length -= mylen; /* length already adjusted for len fld*/ } } /* * Name: dissect_lsp_ipv6_te_router_id() * * Description: Decode an IPv6 TE Router ID CLV - code 140. * * Calls into the clv common one. * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : proto tree to build on (may be null) * int : current offset into packet data * int : length of IDs in packet. * int : length of this clv * * Output: * void, will modify proto_tree if not null. */ static void dissect_lsp_ipv6_te_router_id_clv(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset, isis_data_t *isis _U_, int length) { isis_dissect_ipv6_int_clv(tree, pinfo, tvb, &ei_isis_lsp_short_clv, offset, length, hf_isis_lsp_clv_ipv6_te_router_id ); } /* * Name: dissect_lsp_srv6_locator_subclv () * * Description: parses IP reach subTLVs * Called by various IP Reachability dissectors. * * Input: * tvbuff_t * : tvbuffer for packet data * packet_info * : expert error misuse reporting * proto_tree * : protocol display tree to fill out. * int : offset into packet data where we are (beginning of the sub_clv value). * * Output: * void */ static void dissect_lsp_srv6_locator_subclv(tvbuff_t *tvb, packet_info *pinfo, proto_tree *subtree, int offset, int clv_code, int clv_len) { switch (clv_code) { case 5: /* SRv6 End SID */ if (clv_len < 20) { proto_tree_add_expert_format(subtree, pinfo, &ei_isis_lsp_malformed_subtlv, tvb, offset, clv_len, "Invalid SubSub-TLV Length (%d vs 20)", clv_len); break; } proto_tree_add_item(subtree, hf_isis_lsp_clv_srv6_end_sid_flags, tvb, offset, 1, ENC_NA); proto_tree_add_item(subtree, hf_isis_lsp_clv_srv6_end_sid_endpoint_func, tvb, offset+1, 2, ENC_NA); proto_tree_add_item(subtree, hf_isis_lsp_clv_srv6_end_sid_sid, tvb, offset+3, 16, ENC_NA); proto_tree_add_item(subtree, hf_isis_lsp_clv_srv6_end_sid_subsubclvs_len, tvb, offset+19, 1, ENC_NA); break; default: proto_tree_add_expert_format(subtree, pinfo, &ei_isis_lsp_subtlv, tvb, offset, clv_len, "Unknown Sub-TLV: Type: %u, Length: %u", clv_code, clv_len); break; } } /* * Name: dissect_lsp_srv6_locator_clv() * * Description: Decode an SRv6 Locator CLV - code 27. * * CALLED BY TLV 27 DISSECTOR * * Input: * tvbuff_t * : tvbuffer for packet data * packet_info * : expert error misuse reporting * proto_tree * : proto tree to build on (may be null) * int : current offset into packet data * int : length of IDs in packet. * int : length of this clv * * Output: * void, will modify proto_tree if not null. */ static void dissect_lsp_srv6_locator_clv(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset, isis_data_t *isis _U_, int length) { int min_tlv_len = 13; ws_in6_addr prefix; guint32 bit_length; int byte_length; int i, subtlv_length; guint clv_code, clv_len; int clv_offset; proto_item *ti_subtree = NULL; proto_tree *subtree = NULL; if (length < min_tlv_len) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_short_clv, tvb, offset, length, "Short LSP SRv6 locator (%d vs %d)", length, min_tlv_len); return; } /* MTID */ dissect_lsp_mt_id(tvb, tree, offset); offset += 2; length -= 2; /* Metric */ proto_tree_add_item(tree, hf_isis_lsp_srv6_loc_metric, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; length -= 4; /* Flags */ proto_tree_add_bitmask(tree, tvb, offset, hf_isis_lsp_srv6_loc_flags, ett_isis_lsp_clv_srv6_loc_flags, srv6_locator_flags, ENC_NA); offset++; length--; /* Algorithm */ proto_tree_add_item(tree, hf_isis_lsp_srv6_loc_alg, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; length--; /* Locator Size */ bit_length = tvb_get_guint8(tvb, offset); proto_tree_add_item(tree, hf_isis_lsp_srv6_loc_size, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; length--; /* Locator */ byte_length = tvb_get_ipv6_addr_with_prefix_len(tvb, offset, &prefix, bit_length); if (byte_length < 0) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_length_invalid, tvb, offset - 1, length, "Invalid locator size %u", bit_length); return; } if (length < byte_length + 1) { /* including Sub-tlv-len */ proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_short_clv, tvb, offset, length, "Invalid locator length %u (%d bytes left)", byte_length, length); return; } proto_tree_add_ipv6(tree, hf_isis_lsp_srv6_loc_locator, tvb, offset, byte_length, &prefix); offset += byte_length; length -= byte_length; /* Sub-TLV Length */ subtlv_length = tvb_get_guint8(tvb, offset); proto_tree_add_item(tree, hf_isis_lsp_srv6_loc_subclvs_len, tvb, offset, 1, ENC_NA); offset++; length--; if (length < subtlv_length) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_malformed_subtlv, tvb, offset, length, "Invalid Sub-TLV length %d (%d bytes left)", subtlv_length, length); return; } i = 0; while (i < subtlv_length) { clv_offset = offset + i; clv_code = tvb_get_guint8(tvb, clv_offset); clv_len = tvb_get_guint8(tvb, clv_offset+1); subtree = proto_tree_add_subtree(tree, tvb, clv_offset, clv_len + 2, ett_isis_lsp_clv_srv6_loc_sub_tlv, &ti_subtree, "subTLV"); proto_tree_add_item(subtree, hf_isis_lsp_srv6_loc_sub_tlv_type, tvb, clv_offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(subtree, hf_isis_lsp_srv6_loc_sub_tlv_length, tvb, clv_offset+1, 1, ENC_BIG_ENDIAN); proto_item_append_text(ti_subtree, ": %s (c=%u, l=%u)", val_to_str(clv_code, isis_lsp_srv6_loc_sub_tlv_vals, "Unknown"), clv_code, clv_len); if (i + ((int)clv_len + 2) > subtlv_length) { proto_tree_add_expert_format(subtree, pinfo, &ei_isis_lsp_malformed_subtlv, tvb, clv_offset+2, (subtlv_length-(i+2)), "Invalid Sub-TLV length %u (%d bytes left)", clv_len, subtlv_length-(i+2)); break; } dissect_lsp_srv6_locator_subclv(tvb, pinfo, subtree, clv_offset+2, clv_code, clv_len); i += (clv_len + 2); } } /* * Name: dissect_lsp_purge_orig_id_clv() * * Description: Decode a Purge Originator ID CLV - code 13. * * CALLED BY TLV 13 DISSECTOR * * Input: * tvbuff_t * : tvbuffer for packet data * packet_info * : expert error misuse reporting * proto_tree * : proto tree to build on (may be null) * int : current offset into packet data * isis_data_t : data given to subdissectors * int : length of clv we are decoding * * Output: * void, will modify proto_tree if not null. */ static void dissect_lsp_purge_orig_id_clv(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset, isis_data_t *isis _U_, int length) { int min_tlv_len = 7; guint8 num_of_system_ids; int i; if (length < min_tlv_len) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_short_clv, tvb, offset, length, "Too short LSP Purge Originator ID (%d vs %d)", length, min_tlv_len); return; } /* Number of System IDs */ num_of_system_ids = tvb_get_guint8(tvb, offset); proto_tree_add_item(tree, hf_isis_lsp_purge_orig_id_num, tvb, offset, 1, ENC_NA); offset++; length--; if (num_of_system_ids != 1 && num_of_system_ids != 2) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_malformed_subtlv, tvb, offset, length, "Invalid number of System IDs: %u (should be 1 or 2)", num_of_system_ids); return; } if (length < num_of_system_ids * 6) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_malformed_subtlv, tvb, offset, length, "Invalid Purge Originator ID TLV length: %u ", length+1); return; } for (i = 0; i < num_of_system_ids; i++) { proto_tree_add_item(tree, hf_isis_lsp_purge_orig_id_system_id, tvb, offset, 6, ENC_NA); offset += 6; length -= 6; } } /* rfc6165: MAC Reachability */ static void dissect_lsp_mac_reachability(tvbuff_t *tvb, packet_info* pinfo _U_, proto_tree *tree, int offset, isis_data_t *isis _U_, int length) { int num_macs; int count; gboolean is_avaya = TRUE; // JMayer: FIXME Add preference or determine from other parts of packet if ((length - 5) % 6) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_length_clv, tvb, offset, length, "Unexpected length of MAC Reachability TLV (%d vs 5 + N*6)", length); return; } num_macs = (length -5) / 6; proto_tree_add_item(tree, hf_isis_lsp_mac_reachability_topoid_nick, tvb, offset, 2, ENC_NA); offset += 2; proto_tree_add_item(tree, hf_isis_lsp_mac_reachability_confidence, tvb, offset, 1, ENC_NA); offset += 1; proto_tree_add_item(tree, hf_isis_lsp_mac_reachability_reserved, tvb, offset, 2, ENC_NA); proto_tree_add_item(tree, hf_isis_lsp_mac_reachability_vlan, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; for (count = 1; count <= num_macs; count++) { if (is_avaya && count == 1 ) proto_tree_add_item(tree, hf_isis_lsp_mac_reachability_chassismac, tvb, offset, 6, ENC_NA); else if (is_avaya && count == 2) proto_tree_add_item(tree, hf_isis_lsp_mac_reachability_fanmcast, tvb, offset, 6, ENC_NA); else proto_tree_add_item(tree, hf_isis_lsp_mac_reachability_mac, tvb, offset + 5, 6, ENC_NA); offset += 6; } } static void dissect_lsp_avaya_ipvpn(tvbuff_t *tvb, packet_info* pinfo _U_, proto_tree *tree, int offset, isis_data_t *isis _U_, int length) { guint subtlvbytes; proto_item *ti; proto_item *ti_pfxlen, *ti_prefix; proto_tree *subtlvtree; guint subtype; guint sublength; if (length < 15) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_short_clv, tvb, offset, length, "Too short LSP Avaya IPVPN (%d vs min 15)", length); return; } proto_tree_add_item(tree, hf_isis_lsp_avaya_ipvpn_unknown, tvb, offset, 4, ENC_NA); offset += 4; proto_tree_add_item(tree, hf_isis_lsp_avaya_ipvpn_system_id, tvb, offset, 7, ENC_NA); offset += 7; proto_tree_add_item(tree, hf_isis_lsp_avaya_ipvpn_vrfsid, tvb, offset, 3, ENC_BIG_ENDIAN); offset += 3; proto_tree_add_item_ret_uint(tree, hf_isis_lsp_avaya_ipvpn_subtlvbytes, tvb, offset, 1, ENC_NA, &subtlvbytes); offset += 1; if ((guint)length != 15+subtlvbytes) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_length_clv, tvb, offset, length, "Inconsistent length of LSP Avaya IPVPN with subtlvs (%d vs min %d)", length, 15 + subtlvbytes); return; } while (subtlvbytes > 0) { if (subtlvbytes == 1) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_malformed_subtlv, tvb, offset, length, "Too few bytes remaining for Sub-TLV header (1 vs 2)"); return; } subtype = tvb_get_guint8(tvb, offset); sublength = tvb_get_guint8(tvb, offset + 1); subtlvtree = proto_tree_add_subtree_format(tree, tvb, offset, sublength + 2, ett_isis_lsp_clv_avaya_ipvpn_subtlv, &ti, "%s", val_to_str(subtype, isis_lsp_avaya_ipvpn_subtlv_code_vals, "Unknown")); proto_tree_add_item(subtlvtree, hf_isis_lsp_avaya_ipvpn_subtlvtype, tvb, offset, 1, ENC_NA); proto_tree_add_item(subtlvtree, hf_isis_lsp_avaya_ipvpn_subtlvlength, tvb, offset + 1, 1, ENC_NA); offset += 2; switch (subtype) { case 1: /* Metric Type */ if (sublength != 4) { proto_tree_add_expert_format(subtlvtree, pinfo, &ei_isis_lsp_malformed_subtlv, tvb, offset, sublength, "Unexpected Metric Type sub-TLV length (%d vs 4)", sublength); offset += sublength; } else { proto_tree_add_item(subtlvtree, hf_isis_lsp_avaya_ipvpn_ipv4_metrictype, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; } break; case 135: /* IPv4 */ if (sublength != 12) { proto_tree_add_expert_format(subtlvtree, pinfo, &ei_isis_lsp_malformed_subtlv, tvb, offset, sublength, "Unexpected IPv4 Reachability sub-TLV length (%d vs 12)", sublength); offset += sublength; } else { proto_tree_add_item(subtlvtree, hf_isis_lsp_avaya_ipvpn_ipv4_metric, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; ti_prefix = proto_tree_add_item(subtlvtree, hf_isis_lsp_avaya_ipvpn_ipv4_addr, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; ti_pfxlen = proto_tree_add_item(subtlvtree, hf_isis_lsp_avaya_ipvpn_ipv4_mask, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; proto_item_append_text(ti, ": %s/%s", proto_item_get_display_repr(pinfo->pool, ti_prefix), proto_item_get_display_repr(pinfo->pool, ti_pfxlen)); } break; case 236: /* IPv6 */ if (sublength != 22) { proto_tree_add_expert_format(subtlvtree, pinfo, &ei_isis_lsp_malformed_subtlv, tvb, offset, sublength, "Unexpected IPv6 Reachability sub-TLV length (%d vs 22)", sublength); offset += sublength; } else { proto_tree_add_item(subtlvtree, hf_isis_lsp_avaya_ipvpn_ipv6_metric, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; ti_pfxlen = proto_tree_add_item(subtlvtree, hf_isis_lsp_avaya_ipvpn_ipv6_prefixlen, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; ti_prefix = proto_tree_add_item(subtlvtree, hf_isis_lsp_avaya_ipvpn_ipv6_prefix, tvb, offset, 16, ENC_NA); offset += 16; proto_item_append_text(ti, ": %s/%s", proto_item_get_display_repr(pinfo->pool, ti_prefix), proto_item_get_display_repr(pinfo->pool, ti_pfxlen)); } break; default: proto_tree_add_item(subtlvtree, hf_isis_lsp_avaya_ipvpn_unknown_sub, tvb, offset, sublength, ENC_NA); proto_tree_add_expert_format(subtlvtree, pinfo, &ei_isis_lsp_unknown_subtlv, tvb, offset, sublength, "Unknown Avaya IPVPN subTLV (%d): Please report to Wireshark developers.", subtype); offset += sublength; } subtlvbytes -= (2 + sublength); } } static void dissect_lsp_avaya_ipvpn_mc(tvbuff_t *tvb, packet_info* pinfo _U_, proto_tree *tree, int offset, isis_data_t *isis _U_, int length) { proto_tree_add_item(tree, hf_isis_lsp_avaya_185_unknown, tvb, offset, length, ENC_NA); } static void dissect_lsp_avaya_ip_grt_mc(tvbuff_t *tvb, packet_info* pinfo _U_, proto_tree *tree, int offset, isis_data_t *isis _U_, int length) { proto_tree_add_item(tree, hf_isis_lsp_avaya_186_unknown, tvb, offset, length, ENC_NA); } static const isis_clv_handle_t clv_l1_lsp_opts[] = { { ISIS_CLV_AREA_ADDRESS, "Area address(es)", &ett_isis_lsp_clv_area_addr, dissect_lsp_area_address_clv }, { ISIS_CLV_IS_REACH, "IS Reachability", &ett_isis_lsp_clv_is_neighbors, dissect_lsp_l1_is_neighbors_clv }, { ISIS_CLV_ES_NEIGHBORS, "ES Neighbor(s)", &ett_isis_lsp_clv_is_neighbors, dissect_lsp_l1_es_neighbors_clv }, { ISIS_CLV_INSTANCE_IDENTIFIER, "Instance Identifier", &ett_isis_lsp_clv_instance_identifier, dissect_lsp_instance_identifier_clv }, { ISIS_CLV_LSP_BUFFERSIZE, "Originating neighbor buffer size", &ett_isis_lsp_clv_originating_buff_size, dissect_lsp_ori_buffersize_clv }, { ISIS_CLV_EXTD_IS_REACH, "Extended IS reachability", &ett_isis_lsp_clv_ext_is_reachability, dissect_lsp_ext_is_reachability_clv }, { ISIS_CLV_INT_IP_REACH, "IP Internal reachability", &ett_isis_lsp_clv_ip_reachability, dissect_lsp_ip_reachability_clv }, { ISIS_CLV_EXT_IP_REACH, "IP External reachability", &ett_isis_lsp_clv_ip_reachability, dissect_lsp_ip_reachability_clv }, { ISIS_CLV_EXTD_IP_REACH, "Extended IP Reachability", &ett_isis_lsp_clv_ext_ip_reachability, dissect_lsp_ext_ip_reachability_clv }, { ISIS_CLV_IP6_REACH, "IPv6 reachability", &ett_isis_lsp_clv_ipv6_reachability, dissect_lsp_ipv6_reachability_clv }, { ISIS_CLV_PROTOCOLS_SUPPORTED, "Protocols supported", &ett_isis_lsp_clv_nlpid_nlpid, dissect_lsp_nlpid_clv }, { ISIS_CLV_HOSTNAME, "Hostname", &ett_isis_lsp_clv_hostname, dissect_lsp_hostname_clv }, { ISIS_CLV_SHARED_RISK_GROUP, "Shared Risk Link Group", &ett_isis_lsp_clv_srlg, dissect_lsp_srlg_clv }, { ISIS_CLV_TE_ROUTER_ID, "Traffic Engineering Router ID", &ett_isis_lsp_clv_te_router_id, dissect_lsp_te_router_id_clv }, { ISIS_CLV_IP_ADDR, "IP Interface address(es)", &ett_isis_lsp_clv_ipv4_int_addr, dissect_lsp_ip_int_addr_clv }, { ISIS_CLV_IP6_ADDR, "IPv6 Interface address(es)", &ett_isis_lsp_clv_ipv6_int_addr, dissect_lsp_ipv6_int_addr_clv }, { ISIS_CLV_MT_CAP, "MT-Capability", &ett_isis_lsp_clv_mt_cap, dissect_isis_lsp_clv_mt_cap }, { ISIS_CLV_SID_LABEL_BINDING, "SID/Label Binding TLV", &ett_isis_lsp_clv_sid_label_binding, dissect_isis_lsp_clv_sid_label_binding }, { ISIS_CLV_AUTHENTICATION, "Authentication", &ett_isis_lsp_clv_authentication, dissect_lsp_authentication_clv }, { ISIS_CLV_IP_AUTHENTICATION, "IP Authentication", &ett_isis_lsp_clv_ip_authentication, dissect_lsp_ip_authentication_clv }, { ISIS_CLV_MT_SUPPORTED, "Multi Topology supported", &ett_isis_lsp_clv_mt, dissect_lsp_mt_clv }, { ISIS_CLV_MT_IS_REACH, "Multi Topology IS Reachability", &ett_isis_lsp_clv_mt_is, dissect_lsp_mt_is_reachability_clv }, { ISIS_CLV_MT_IP_REACH, "Multi Topology Reachable IPv4 Prefixes", &ett_isis_lsp_clv_mt_reachable_IPv4_prefx, dissect_lsp_mt_reachable_IPv4_prefx_clv }, { ISIS_CLV_MT_IP6_REACH, "Multi Topology Reachable IPv6 Prefixes", &ett_isis_lsp_clv_mt_reachable_IPv6_prefx, dissect_lsp_mt_reachable_IPv6_prefx_clv }, { ISIS_CLV_RT_CAPABLE, "Router Capability", &ett_isis_lsp_clv_rt_capable, dissect_isis_rt_capable_clv }, { ISIS_GRP_ADDR, "Group Address", &ett_isis_lsp_clv_grp_address, dissect_isis_grp_address_clv }, { ISIS_CLV_IPV6_TE_ROUTER_ID, "IPv6 TE Router ID", &ett_isis_lsp_clv_ipv6_te_router_id, dissect_lsp_ipv6_te_router_id_clv }, { ISIS_CLV_SRV6_LOCATOR, "SRv6 Locator", &ett_isis_lsp_clv_srv6_locator, dissect_lsp_srv6_locator_clv }, { ISIS_CLV_PURGE_ORIG_ID, "Purge Originator ID", &ett_isis_lsp_clv_purge_orig_id, dissect_lsp_purge_orig_id_clv }, { ISIS_CLV_MAC_RI, "MAC Reachability", &ett_isis_lsp_clv_mac_reachability, dissect_lsp_mac_reachability }, { ISIS_CLV_AVAYA_IPVPN, "Avaya IPVPN", &ett_isis_lsp_clv_avaya_ipvpn, dissect_lsp_avaya_ipvpn }, { ISIS_CLV_AVAYA_IPVPN_MC, "Avaya IPVPN MCast", &ett_isis_lsp_clv_avaya_ipvpn_mc, dissect_lsp_avaya_ipvpn_mc }, { ISIS_CLV_AVAYA_IP_GRT_MC, "Avaya IP GRT MCast", &ett_isis_lsp_clv_avaya_ip_grt_mc, dissect_lsp_avaya_ip_grt_mc }, { 0, "", NULL, NULL } }; static const isis_clv_handle_t clv_l2_lsp_opts[] = { { ISIS_CLV_AREA_ADDRESS, "Area address(es)", &ett_isis_lsp_clv_area_addr, dissect_lsp_area_address_clv }, { ISIS_CLV_IS_REACH, "IS Reachability", &ett_isis_lsp_clv_is_neighbors, dissect_lsp_l2_is_neighbors_clv }, { ISIS_CLV_EXTD_IS_REACH, "Extended IS reachability", &ett_isis_lsp_clv_ext_is_reachability, dissect_lsp_ext_is_reachability_clv }, { ISIS_CLV_PARTITION_DIS, "Partition Designated Level 2 IS", &ett_isis_lsp_clv_partition_dis, dissect_lsp_partition_dis_clv }, { ISIS_CLV_PREFIX_NEIGHBORS, "Prefix neighbors", &ett_isis_lsp_clv_prefix_neighbors, dissect_lsp_prefix_neighbors_clv }, { ISIS_CLV_INSTANCE_IDENTIFIER, "Instance Identifier", &ett_isis_lsp_clv_instance_identifier, dissect_lsp_instance_identifier_clv }, { ISIS_CLV_LSP_BUFFERSIZE, "Originating neighbor buffer size", &ett_isis_lsp_clv_originating_buff_size, dissect_lsp_ori_buffersize_clv }, { ISIS_CLV_INT_IP_REACH, "IP Internal reachability", &ett_isis_lsp_clv_ip_reachability, dissect_lsp_ip_reachability_clv }, { ISIS_CLV_EXT_IP_REACH, "IP External reachability", &ett_isis_lsp_clv_ip_reachability, dissect_lsp_ip_reachability_clv }, { ISIS_CLV_PROTOCOLS_SUPPORTED, "Protocols supported", &ett_isis_lsp_clv_nlpid_nlpid, dissect_lsp_nlpid_clv }, { ISIS_CLV_HOSTNAME, "Hostname", &ett_isis_lsp_clv_hostname, dissect_lsp_hostname_clv }, { ISIS_CLV_SHARED_RISK_GROUP, "Shared Risk Link Group", &ett_isis_lsp_clv_srlg, dissect_lsp_srlg_clv }, { ISIS_CLV_TE_ROUTER_ID, "Traffic Engineering Router ID", &ett_isis_lsp_clv_te_router_id, dissect_lsp_te_router_id_clv }, { ISIS_CLV_EXTD_IP_REACH, "Extended IP Reachability", &ett_isis_lsp_clv_ext_ip_reachability, dissect_lsp_ext_ip_reachability_clv }, { ISIS_CLV_IP6_REACH, "IPv6 reachability", &ett_isis_lsp_clv_ipv6_reachability, dissect_lsp_ipv6_reachability_clv }, { ISIS_CLV_IP_ADDR, "IP Interface address(es)", &ett_isis_lsp_clv_ipv4_int_addr, dissect_lsp_ip_int_addr_clv }, { ISIS_CLV_IP6_ADDR, "IPv6 Interface address(es)", &ett_isis_lsp_clv_ipv6_int_addr, dissect_lsp_ipv6_int_addr_clv }, { ISIS_CLV_MT_CAP, "MT-Capability", &ett_isis_lsp_clv_mt_cap, dissect_isis_lsp_clv_mt_cap }, { ISIS_CLV_SID_LABEL_BINDING, "SID/Label Binding TLV", &ett_isis_lsp_clv_sid_label_binding, dissect_isis_lsp_clv_sid_label_binding }, { ISIS_CLV_AUTHENTICATION, "Authentication", &ett_isis_lsp_clv_authentication, dissect_lsp_authentication_clv }, { ISIS_CLV_IP_AUTHENTICATION, "IP Authentication", &ett_isis_lsp_clv_ip_authentication, dissect_lsp_ip_authentication_clv }, { ISIS_CLV_MT_SUPPORTED, "Multi Topology", &ett_isis_lsp_clv_mt, dissect_lsp_mt_clv }, { ISIS_CLV_MT_IS_REACH, "Multi Topology IS Reachability", &ett_isis_lsp_clv_mt_is, dissect_lsp_mt_is_reachability_clv }, { ISIS_CLV_MT_IP_REACH, "Multi Topology Reachable IPv4 Prefixes", &ett_isis_lsp_clv_mt_reachable_IPv4_prefx, dissect_lsp_mt_reachable_IPv4_prefx_clv }, { ISIS_CLV_MT_IP6_REACH, "Multi Topology Reachable IPv6 Prefixes", &ett_isis_lsp_clv_mt_reachable_IPv6_prefx, dissect_lsp_mt_reachable_IPv6_prefx_clv }, { ISIS_CLV_RT_CAPABLE, "Router Capability", &ett_isis_lsp_clv_rt_capable, dissect_isis_rt_capable_clv }, { ISIS_CLV_IPV6_TE_ROUTER_ID, "IPv6 TE Router ID", &ett_isis_lsp_clv_ipv6_te_router_id, dissect_lsp_ipv6_te_router_id_clv }, { ISIS_CLV_SRV6_LOCATOR, "SRv6 Locator", &ett_isis_lsp_clv_srv6_locator, dissect_lsp_srv6_locator_clv }, { ISIS_CLV_PURGE_ORIG_ID, "Purge Originator ID", &ett_isis_lsp_clv_purge_orig_id, dissect_lsp_purge_orig_id_clv }, { 0, "", NULL, NULL } }; /* * Name: isis_dissect_isis_lsp() * * Description: * Print out the LSP part of the main header and then call the CLV * de-mangler with the right list of valid CLVs. * * Input: * tvbuff_t * : tvbuffer for packet data * proto_tree * : protocol display tree to add to. May be NULL. * int offset : our offset into packet data. * int : LSP type, a la packet-isis.h ISIS_TYPE_* values * int : header length of packet. * int : length of IDs in packet. * * Output: * void, but we will add to proto tree if !NULL. */ static void dissect_isis_lsp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, const isis_clv_handle_t *opts, isis_data_t *isis) { proto_item *ti; proto_tree *lsp_tree, *info_tree; guint16 pdu_length, lifetime, checksum, cacl_checksum=0; gboolean pdu_length_too_short = FALSE; gboolean pdu_length_too_long = FALSE; guint8 lsp_info; int offset_checksum; char *system_id; /* * We are passed a tvbuff for the entire ISIS PDU, because some ISIS * PDUs may contain a checksum CLV, and that's a checksum covering * the entire PDU. Skip the part of the header that's already been * dissected. */ offset += 8; col_set_str(pinfo->cinfo, COL_PROTOCOL, "ISIS LSP"); ti = proto_tree_add_item(tree, proto_isis_lsp, tvb, offset, -1, ENC_NA); lsp_tree = proto_item_add_subtree(ti, ett_isis_lsp); if (isis->header_length < 8 + 2) { /* Not large enough to include the part of the header that we dissect here. */ expert_add_info(pinfo, isis->header_length_item, isis->ei_bad_header_length); return; } pdu_length = tvb_get_ntohs(tvb, offset); ti = proto_tree_add_uint(lsp_tree, hf_isis_lsp_pdu_length, tvb, offset, 2, pdu_length); if (pdu_length < isis->header_length) { expert_add_info(pinfo, ti, &ei_isis_lsp_short_pdu); pdu_length_too_short = TRUE; } else if (pdu_length > tvb_reported_length(tvb) + isis->header_length) { expert_add_info(pinfo, ti, &ei_isis_lsp_long_pdu); pdu_length_too_long = TRUE; } offset += 2; if (isis->header_length < 8 + 2 + 2) { /* Not large enough to include the part of the header that we dissect here. */ expert_add_info(pinfo, isis->header_length_item, isis->ei_bad_header_length); return; } proto_tree_add_item(lsp_tree, hf_isis_lsp_remaining_life, tvb, offset, 2, ENC_BIG_ENDIAN); lifetime = tvb_get_ntohs(tvb, offset); offset += 2; /* Checksumming starts with the LSP ID */ offset_checksum = offset; if (isis->header_length < 8 + 2 + 2 + isis->system_id_len + 2) { /* Not large enough to include the part of the header that we dissect here. */ expert_add_info(pinfo, isis->header_length_item, isis->ei_bad_header_length); return; } proto_tree_add_item(lsp_tree, hf_isis_lsp_lsp_id, tvb, offset, isis->system_id_len + 2, ENC_NA); system_id = tvb_print_system_id( pinfo->pool, tvb, offset, isis->system_id_len+2 ); col_append_fstr(pinfo->cinfo, COL_INFO, ", LSP-ID: %s", system_id); offset += (isis->system_id_len + 2); if (isis->header_length < 8 + 2 + 2 + isis->system_id_len + 2 + 4) { /* Not large enough to include the part of the header that we dissect here. */ expert_add_info(pinfo, isis->header_length_item, isis->ei_bad_header_length); return; } proto_tree_add_item(lsp_tree, hf_isis_lsp_sequence_number, tvb, offset, 4, ENC_BIG_ENDIAN); col_append_fstr(pinfo->cinfo, COL_INFO, ", Sequence: 0x%08x, Lifetime: %5us", tvb_get_ntohl(tvb, offset), tvb_get_ntohs(tvb, offset - (isis->system_id_len+2+2))); offset += 4; if (isis->header_length < 8 + 2 + 2 + isis->system_id_len + 2 + 4 + 2) { /* Not large enough to include the part of the header that we dissect here. */ expert_add_info(pinfo, isis->header_length_item, isis->ei_bad_header_length); return; } checksum = lifetime ? tvb_get_ntohs(tvb, offset) : 0; if (checksum == 0) { /* No checksum present */ proto_tree_add_checksum(lsp_tree, tvb, offset, hf_isis_lsp_checksum, hf_isis_lsp_checksum_status, &ei_isis_lsp_bad_checksum, pinfo, 0, ENC_BIG_ENDIAN, PROTO_CHECKSUM_NOT_PRESENT); } else if (pdu_length_too_short || pdu_length_too_long) { /* Length bogus, so we can't check the checksum */ proto_tree_add_checksum(lsp_tree, tvb, offset, hf_isis_lsp_checksum, hf_isis_lsp_checksum_status, &ei_isis_lsp_bad_checksum, pinfo, 0, ENC_BIG_ENDIAN, PROTO_CHECKSUM_NO_FLAGS); } else { if (osi_check_and_get_checksum(tvb, offset_checksum, pdu_length-12, offset, &cacl_checksum)) { /* Successfully processed checksum, verify it */ proto_tree_add_checksum(lsp_tree, tvb, offset, hf_isis_lsp_checksum, hf_isis_lsp_checksum_status, &ei_isis_lsp_bad_checksum, pinfo, cacl_checksum, ENC_BIG_ENDIAN, PROTO_CHECKSUM_VERIFY); if (cacl_checksum != checksum) { col_append_str(pinfo->cinfo, COL_INFO, " [ISIS CHECKSUM INCORRECT]"); } } else { /* We didn't capture the entire packet, so we can't verify it */ proto_tree_add_checksum(lsp_tree, tvb, offset, hf_isis_lsp_checksum, hf_isis_lsp_checksum_status, &ei_isis_lsp_bad_checksum, pinfo, 0, ENC_BIG_ENDIAN, PROTO_CHECKSUM_NO_FLAGS); } } offset += 2; if (isis->header_length < 8 + 2 + 2 + isis->system_id_len + 2 + 4 + 2 + 1) { /* Not large enough to include the part of the header that we dissect here. */ expert_add_info(pinfo, isis->header_length_item, isis->ei_bad_header_length); return; } if (tree) { static int * const attach_flags[] = { &hf_isis_lsp_error_metric, &hf_isis_lsp_expense_metric, &hf_isis_lsp_delay_metric, &hf_isis_lsp_default_metric, NULL }; /* * P | ATT | HIPPITY | IS TYPE description. */ lsp_info = tvb_get_guint8(tvb, offset); info_tree = proto_tree_add_subtree_format(lsp_tree, tvb, offset, 1, ett_isis_lsp_info, NULL, "Type block(0x%02x): Partition Repair:%d, Attached bits:%d, Overload bit:%d, IS type:%d", lsp_info, ISIS_LSP_PARTITION(lsp_info), ISIS_LSP_ATT(lsp_info), ISIS_LSP_HIPPITY(lsp_info), ISIS_LSP_IS_TYPE(lsp_info) ); proto_tree_add_boolean(info_tree, hf_isis_lsp_p, tvb, offset, 1, lsp_info); proto_tree_add_bitmask_with_flags(info_tree, tvb, offset, hf_isis_lsp_att, ett_isis_lsp_att, attach_flags, ENC_NA, BMT_NO_APPEND); proto_tree_add_boolean(info_tree, hf_isis_lsp_hippity, tvb, offset, 1, lsp_info); proto_tree_add_uint(info_tree, hf_isis_lsp_is_type, tvb, offset, 1, lsp_info); } offset += 1; if (pdu_length_too_short) { return; } /* * Now, we need to decode our CLVs. We need to pass in * our list of valid ones! */ isis->pdu_length = pdu_length; isis_dissect_clvs(tvb, pinfo, lsp_tree, offset, opts, &ei_isis_lsp_short_clv, isis, ett_isis_lsp_clv_unknown, hf_isis_lsp_clv_type, hf_isis_lsp_clv_length, &ei_isis_lsp_clv_unknown); } static int dissect_isis_l1_lsp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data) { isis_data_t* isis = (isis_data_t*)data; dissect_isis_lsp(tvb, pinfo, tree, 0, clv_l1_lsp_opts, isis); return tvb_reported_length(tvb); } static int dissect_isis_l2_lsp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data) { isis_data_t* isis = (isis_data_t*)data; dissect_isis_lsp(tvb, pinfo, tree, 0, clv_l2_lsp_opts, isis); return tvb_reported_length(tvb); } /* * The "supported" bit in a metric is actually the "not supported" bit; * if it's *clear*, the metric is supported, and if it's *set*, the * metric is not supported. */ void proto_register_isis_lsp(void) { static hf_register_info hf[] = { { &hf_isis_lsp_pdu_length, { "PDU length", "isis.lsp.pdu_length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_remaining_life, { "Remaining lifetime", "isis.lsp.remaining_life", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_lsp_id, { "LSP-ID", "isis.lsp.lsp_id", FT_SYSTEM_ID, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_hostname, { "Hostname", "isis.lsp.hostname", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_srlg_system_id, { "System ID", "isis.lsp.srlg.system_id", FT_SYSTEM_ID, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_srlg_pseudo_num, { "Pseudonode num", "isis.lsp.srlg.pseudo_num", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_srlg_flags_numbered, { "Numbered", "isis.lsp.srlg.flags_numbered", FT_BOOLEAN, 8, TFS(&tfs_yes_no), 0x01, NULL, HFILL } }, { &hf_isis_lsp_srlg_ipv4_local, { "IPv4 interface address/Link Local Identifier", "isis.lsp.srlg.ipv4_local", FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_srlg_ipv4_remote, { "IPv4 neighbor address/Link remote Identifier", "isis.lsp.srlg.ipv4_remote", FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_srlg_value, { "Shared Risk Link Group Value", "isis.lsp.srlg.value", FT_UINT32, BASE_DEC_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_sequence_number, { "Sequence number", "isis.lsp.sequence_number", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_checksum, { "Checksum", "isis.lsp.checksum", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_checksum_status, { "Checksum Status", "isis.lsp.checksum.status", FT_UINT8, BASE_NONE, VALS(proto_checksum_vals), 0x0, NULL, HFILL } }, { &hf_isis_lsp_clv_ipv4_int_addr, { "IPv4 interface address", "isis.lsp.clv_ipv4_int_addr", FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_clv_ipv6_int_addr, { "IPv6 interface address", "isis.lsp.clv_ipv6_int_addr", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_clv_te_router_id, { "Traffic Engineering Router ID", "isis.lsp.clv_te_router_id", FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_clv_mt, { "MT-ID", "isis.lsp.clv_mt", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_p, { "Partition Repair", "isis.lsp.partition_repair", FT_BOOLEAN, 8, TFS(&tfs_supported_not_supported), ISIS_LSP_PARTITION_MASK, "If set, this router supports the optional Partition Repair function", HFILL } }, { &hf_isis_lsp_att, { "Attachment", "isis.lsp.att", FT_UINT8, BASE_DEC, NULL, ISIS_LSP_ATT_MASK, NULL, HFILL } }, { &hf_isis_lsp_hippity, { "Overload bit", "isis.lsp.overload", FT_BOOLEAN, 8, TFS(&tfs_set_notset), ISIS_LSP_HIPPITY_MASK, "If set, this router will not be used by any decision process to calculate routes", HFILL } }, { &hf_isis_lsp_root_id, { "Root Bridge ID", "isis.lsp.root.id", FT_SYSTEM_ID, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_is_type, { "Type of Intermediate System", "isis.lsp.is_type", FT_UINT8, BASE_DEC, VALS(isis_lsp_istype_vals), ISIS_LSP_IS_TYPE_MASK, NULL, HFILL } }, { &hf_isis_lsp_clv_type, { "Type", "isis.lsp.clv.type", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_clv_length, { "Length", "isis.lsp.clv.length", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_bw_ct_model, { "Bandwidth Constraints Model Id", "isis.lsp.bw_ct.model", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_isis_lsp_bw_ct_reserved, { "Reserved", "isis.lsp.bw_ct.rsv", FT_UINT24, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_isis_lsp_bw_ct0, { "Bandwidth Constraints 0", "isis.lsp.bw_ct.0", FT_FLOAT, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_isis_lsp_bw_ct1, { "Bandwidth Constraints 1", "isis.lsp.bw_ct.1", FT_FLOAT, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_isis_lsp_bw_ct2, { "Bandwidth Constraints 2", "isis.lsp.bw_ct.2", FT_FLOAT, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_isis_lsp_bw_ct3, { "Bandwidth Constraints 3", "isis.lsp.bw_ct.3", FT_FLOAT, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_isis_lsp_bw_ct4, { "Bandwidth Constraints 4", "isis.lsp.bw_ct.4", FT_FLOAT, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_isis_lsp_bw_ct5, { "Bandwidth Constraints 5", "isis.lsp.bw_ct.5", FT_FLOAT, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_isis_lsp_bw_ct6, { "Bandwidth Constraints 6", "isis.lsp.bw_ct.6", FT_FLOAT, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_isis_lsp_bw_ct7, { "Bandwidth Constraints 7", "isis.lsp.bw_ct.7", FT_FLOAT, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_isis_lsp_spb_link_metric, { "SPB Link Metric", "isis.lsp.spb.link_metric", FT_UINT24, BASE_HEX_DEC, NULL, 0, NULL, HFILL } }, { &hf_isis_lsp_spb_port_count, { "Number of Ports", "isis.lsp.spb.port_count", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_isis_lsp_spb_port_id, { "Port Id", "isis.lsp.spb.port_id", FT_UINT16, BASE_HEX_DEC, NULL, 0, NULL, HFILL } }, { &hf_isis_lsp_adj_sid_flags, { "Flags", "isis.lsp.adj_sid.flags", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_adj_sid_family_flag, { "Outgoing Encapsulation", "isis.lsp.adj_sid.flags.f", FT_BOOLEAN, 8, TFS(&tfs_ipv6_ipv4), 0x80, NULL, HFILL } }, { &hf_isis_lsp_adj_sid_backup_flag, { "Backup", "isis.lsp.adj_sid.flags.b", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x40, NULL, HFILL } }, { &hf_isis_lsp_adj_sid_value_flag, { "Value", "isis.lsp.adj_sid.flags.v", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x20, NULL, HFILL } }, { &hf_isis_lsp_adj_sid_local_flag, { "Local Significance", "isis.lsp.adj_sid.flags.l", FT_BOOLEAN, 8, TFS(&tfs_yes_no), 0x10, NULL, HFILL } }, { &hf_isis_lsp_adj_sid_set_flag, { "Set", "isis.lsp.adj_sid.flags.s", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x8, NULL, HFILL } }, { &hf_isis_lsp_adj_sid_weight, { "Weight", "isis.lsp.adj_sid.weight", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_adj_sid_system_id, { "System-ID", "isis.lsp.adj_sid.system_id", FT_SYSTEM_ID, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_sid_sli_label, { "SID/Label/Index", "isis.lsp.sid.sli_label", FT_UINT24, BASE_DEC, NULL, 0x0FFFFF, NULL, HFILL } }, { &hf_isis_lsp_sid_sli_index, { "SID/Label/Index", "isis.lsp.sid.sli_index", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_sid_sli_ipv6, { "SID/Label/Index", "isis.lsp.sid.sli_ipv6", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_spb_reserved, { "SR Bit", "isis.lsp.spb.reserved", FT_UINT16, BASE_DEC, NULL, 0xC000, NULL, HFILL } }, { &hf_isis_lsp_spb_sr_bit, { "SR Bit", "isis.lsp.spb.sr_bit", FT_UINT16, BASE_DEC, NULL, 0x3000, NULL, HFILL } }, { &hf_isis_lsp_spb_spvid, { "SPVID", "isis.lsp.spb.spvid", FT_UINT16, BASE_HEX_DEC, NULL, 0x0FFF, NULL, HFILL } }, { &hf_isis_lsp_spb_short_mac_address_t, { "T", "isis.lsp.spb.mac_address.t", FT_BOOLEAN, 8, NULL, 0x80, NULL, HFILL } }, { &hf_isis_lsp_spb_short_mac_address_r, { "R", "isis.lsp.spb.mac_address.r", FT_BOOLEAN, 8, NULL, 0x40, NULL, HFILL } }, { &hf_isis_lsp_spb_short_mac_address_reserved, { "Reserved", "isis.lsp.spb.mac_address.reserved", FT_UINT8, BASE_DEC, NULL, 0x3F, NULL, HFILL } }, { &hf_isis_lsp_spb_short_mac_address, { "MAC Address", "isis.lsp.spb.mac_address", FT_ETHER, BASE_NONE, NULL, 0x00, NULL, HFILL } }, /* TLV 149 draft-previdi-isis-segmentrouting-extensions */ { &hf_isis_lsp_sl_binding_flags, { "TLV Flags", "isis.lsp.sl_binding.flags", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_isis_lsp_sl_binding_flags_f, { "Flag F: Address Family", "isis.lsp.sl_binding.flags_f", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x80, NULL, HFILL} }, { &hf_isis_lsp_sl_binding_flags_m, { "Flag M: Mirror Context", "isis.lsp.sl_binding.flags_m", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x40, NULL, HFILL} }, { &hf_isis_lsp_sl_binding_flags_s, { "Flag S", "isis.lsp.sl_binding.flags_s", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x20, "If set, the SID/Label Binding TLV SHOULD be flooded across the entire routing domain", HFILL} }, { &hf_isis_lsp_sl_binding_flags_d, { "Flag D", "isis.lsp.sl_binding.flags_d", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x10, "when the SID/Label Binding TLV is leaked from level-2 to level-1", HFILL} }, { &hf_isis_lsp_sl_binding_flags_a, { "Flag A: Attached", "isis.lsp.sl_binding.flags_a", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x08, NULL, HFILL} }, { &hf_isis_lsp_sl_binding_flags_rsv, { "Flag reserved", "isis.lsp.sl_binding.flags_rsv", FT_UINT8, BASE_HEX, NULL, 0x07, NULL, HFILL} }, { &hf_isis_lsp_sl_binding_weight, { "Weight", "isis.lsp.sl_binding.weight", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL} }, { &hf_isis_lsp_sl_binding_range, { "Range", "isis.lsp.sl_binding.range", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL} }, { &hf_isis_lsp_sl_binding_prefix_length, { "Prefix length", "isis.lsp.sl_binding.prefix_len", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL} }, { &hf_isis_lsp_sl_binding_fec_prefix_ipv4, { "Prefix", "isis.lsp.sl_binding.prefix_ipv4", FT_IPv4, BASE_NONE, NULL, 0, NULL, HFILL} }, { &hf_isis_lsp_sl_binding_fec_prefix_ipv6, { "Prefix", "isis.lsp.sl_binding.prefix_ipv6", FT_IPv6, BASE_NONE, NULL, 0, NULL, HFILL} }, { &hf_isis_lsp_sl_sub_tlv, { "SID/Label sub-TLV :", "isis.lsp.sl_binding.subtlv", FT_NONE, BASE_NONE, NULL, 0, NULL, HFILL} }, { &hf_isis_lsp_sl_sub_tlv_type, { "SID/label sub-TLV type", "isis.lsp.sl_sub_tlv_type", FT_UINT8, BASE_DEC, VALS(isis_lsp_sl_sub_tlv_vals), 0, NULL, HFILL} }, { &hf_isis_lsp_sl_sub_tlv_length, { "Sub-TLV length", "isis.lsp.sl_binding.sub_tlv_len", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL} }, { &hf_isis_lsp_sl_sub_tlv_label_20, { "SID/Label", "isis.lsp.sl_sub_tlv.label20", FT_UINT24, BASE_DEC, NULL, 0x0FFFFF, NULL, HFILL} }, { &hf_isis_lsp_sl_sub_tlv_label_32, { "SID/Label", "isis.lsp.sl_sub_tlv.label32", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL} }, { &hf_isis_lsp_sl_sub_tlv_flags, { "sub-TLV Flags", "isis.lsp.sl_sub_tlv.flags", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_isis_lsp_sl_sub_tlv_flags_r, { "Flag R: Re-advertisement", "isis.lsp.sl_sub_tlv.flags_r", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x80, NULL, HFILL} }, { &hf_isis_lsp_sl_sub_tlv_flags_n, { "Flag N: Node-SID", "isis.lsp.sl_sub_tlv.flags_n", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x40, NULL, HFILL} }, { &hf_isis_lsp_sl_sub_tlv_flags_p, { "Flag P: no-PHP", "isis.lsp.sl_sub_tlv.flags_p", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x20, NULL, HFILL} }, { &hf_isis_lsp_sl_sub_tlv_flags_e, { "Flag E: Explicit-Null", "isis.lsp.sl_sub_tlv.flags_e", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x10, NULL, HFILL} }, { &hf_isis_lsp_sl_sub_tlv_flags_v, { "Flag V: Value", "isis.lsp.sl_sub_tlv.flags_v", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x08, NULL, HFILL} }, { &hf_isis_lsp_sl_sub_tlv_flags_l, { "Flag L: Local", "isis.lsp.sl_sub_tlv.flags_l", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x04, NULL, HFILL} }, { &hf_isis_lsp_sl_sub_tlv_flags_rsv, { "Flag reserved", "isis.lsp.sl_sub_tlv.flags_rsv", FT_UINT8, BASE_HEX, NULL, 0x03, NULL, HFILL} }, { &hf_isis_lsp_sl_sub_tlv_algorithm, { "Algorithm", "isis.lsp.sl_sub_tlv.algorithm", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL} }, /* Generated from convert_proto_tree_add_text.pl */ { &hf_isis_lsp_mt_id_reserved, { "Reserved", "isis.lsp.reserved", FT_UINT16, BASE_HEX, NULL, ISIS_LSP_MT_MSHIP_RES_MASK, NULL, HFILL} }, { &hf_isis_lsp_mt_id, { "Topology ID", "isis.lsp.mtid", FT_UINT16, BASE_DEC|BASE_RANGE_STRING, RVALS(mtid_strings), 0x0fff, NULL, HFILL } }, { &hf_isis_lsp_ip_reachability_ipv4_prefix, { "IPv4 prefix", "isis.lsp.ip_reachability.ipv4_prefix", FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_ip_reachability_default_metric, { "Default Metric", "isis.lsp.ip_reachability.default_metric", FT_UINT8, BASE_DEC, NULL, 0x3F, NULL, HFILL } }, { &hf_isis_lsp_ip_reachability_delay_metric, { "Delay Metric", "isis.lsp.ip_reachability.delay_metric", FT_UINT8, BASE_DEC, NULL, 0x3F, NULL, HFILL } }, { &hf_isis_lsp_ip_reachability_expense_metric, { "Expense Metric", "isis.lsp.ip_reachability.expense_metric", FT_UINT8, BASE_DEC, NULL, 0x3F, NULL, HFILL } }, { &hf_isis_lsp_ip_reachability_error_metric, { "Error Metric", "isis.lsp.ip_reachability.error_metric", FT_UINT8, BASE_DEC, NULL, 0x3F, NULL, HFILL } }, { &hf_isis_lsp_ext_ip_reachability_subclvs_len, { "SubCLV Length", "isis.lsp.ext_ip_reachability.subclvs_length", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_ext_ip_reachability_code, { "Code", "isis.lsp.ext_ip_reachability.code", FT_UINT8, BASE_DEC, VALS(isis_lsp_ext_ip_reachability_code_vals), 0x0, NULL, HFILL } }, { &hf_isis_lsp_ext_ip_reachability_len, { "Length", "isis.lsp.ext_ip_reachability.length", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_ext_ip_reachability_prefix_flags, { "Flags", "isis.lsp.ext_ip_reachability.prefix_sid.flags", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_ext_ip_reachability_prefix_re_adv_flag, { "Re-advertisement", "isis.lsp.ext_ip_reachability.prefix_sid.flags.r", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x80, NULL, HFILL } }, { &hf_isis_lsp_ext_ip_reachability_prefix_node_sid_flag, { "Node-SID", "isis.lsp.ext_ip_reachability.prefix_sid.flags.n", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x40, NULL, HFILL } }, { &hf_isis_lsp_ext_ip_reachability_prefix_nophp_flag, { "no-PHP", "isis.lsp.ext_ip_reachability.prefix_sid.flags.p", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x20, NULL, HFILL } }, { &hf_isis_lsp_ext_ip_reachability_prefix_expl_null_flag, { "Explicit-Null", "isis.lsp.ext_ip_reachability.prefix_sid.flags.e", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x10, NULL, HFILL } }, { &hf_isis_lsp_ext_ip_reachability_prefix_value_flag, { "Value", "isis.lsp.ext_ip_reachability.prefix_sid.flags.v", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x8, NULL, HFILL } }, { &hf_isis_lsp_ext_ip_reachability_prefix_local_flag, { "Local", "isis.lsp.ext_ip_reachability.prefix_sid.flags.l", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x4, NULL, HFILL } }, { &hf_isis_lsp_32_bit_administrative_tag, { "32-Bit Administrative tag", "isis.lsp.32_bit_administrative_tag", FT_UINT32, BASE_HEX_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_64_bit_administrative_tag, { "64-Bit Administrative tag", "isis.lsp.64_bit_administrative_tag", FT_UINT64, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_ext_ip_reachability_ipv4_prefix, { "IPv4 prefix", "isis.lsp.ext_ip_reachability.ipv4_prefix", FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_ext_ip_reachability_metric, { "Metric", "isis.lsp.ext_ip_reachability.metric", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_ext_ip_reachability_distribution, { "Distribution", "isis.lsp.ext_ip_reachability.distribution", FT_BOOLEAN, 8, TFS(&tfs_down_up), 0x80, NULL, HFILL } }, { &hf_isis_lsp_ext_ip_reachability_subtlv, { "Sub-TLV", "isis.lsp.ext_ip_reachability.subtlv", FT_BOOLEAN, 8, TFS(&tfs_yes_no), 0x40, NULL, HFILL } }, { &hf_isis_lsp_ext_ip_reachability_prefix_length, { "Prefix Length", "isis.lsp.ext_ip_reachability.prefix_length", FT_UINT8, BASE_DEC, NULL, 0x3F, NULL, HFILL } }, { &hf_isis_lsp_grp_type, { "Type", "isis.lsp.grp.type", FT_UINT8, BASE_DEC, VALS(isis_lsp_grp_types), 0x0, NULL, HFILL } }, { &hf_isis_lsp_grp_macaddr_length, { "Length", "isis.lsp.grp_macaddr.length", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_grp_macaddr_topology_id, { "Topology ID", "isis.lsp.grp_macaddr.mtid", FT_UINT16, BASE_DEC|BASE_RANGE_STRING, RVALS(mtid_strings), 0x0fff, NULL, HFILL } }, { &hf_isis_lsp_grp_macaddr_vlan_id, { "VLAN ID", "isis.lsp.grp_macaddr.vlan_id", FT_UINT16, BASE_DEC, NULL, 0x0fff, NULL, HFILL } }, { &hf_isis_lsp_grp_macaddr_number_of_records, { "Number of records", "isis.lsp.grp_macaddr.number_of_records", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_grp_macaddr_number_of_sources, { "Number of sources", "isis.lsp.grp_macaddr.number_of_sources", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_grp_macaddr_group_address, { "Group Address", "isis.lsp.grp_macaddr.group_address", FT_SYSTEM_ID, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_grp_macaddr_source_address, { "Source Address", "isis.lsp.grp_macaddr.source_address", FT_SYSTEM_ID, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_grp_ipv4addr_length, { "Length", "isis.lsp.grp_ipv4addr.length", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_grp_ipv4addr_topology_id, { "Topology ID", "isis.lsp.grp_ipv4addr.mtid", FT_UINT16, BASE_DEC|BASE_RANGE_STRING, RVALS(mtid_strings), 0x0fff, NULL, HFILL } }, { &hf_isis_lsp_grp_ipv4addr_vlan_id, { "VLAN ID", "isis.lsp.grp_ipv4addr.vlan_id", FT_UINT16, BASE_DEC, NULL, 0x0fff, NULL, HFILL } }, { &hf_isis_lsp_grp_ipv4addr_number_of_records, { "Number of records", "isis.lsp.grp_ipv4addr.number_of_records", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_grp_ipv4addr_number_of_sources, { "Number of sources", "isis.lsp.grp_ipv4addr.number_of_sources", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_grp_ipv4addr_group_address, { "Group Address", "isis.lsp.grp_ipv4addr.group_address", FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_grp_ipv4addr_source_address, { "Source Address", "isis.lsp.grp_ipv4addr.source_address", FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_grp_ipv6addr_length, { "Length", "isis.lsp.grp_ipv6addr.length", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_grp_ipv6addr_topology_id, { "Topology ID", "isis.lsp.grp_ipv6addr.mtid", FT_UINT16, BASE_DEC|BASE_RANGE_STRING, RVALS(mtid_strings), 0x0fff, NULL, HFILL } }, { &hf_isis_lsp_grp_ipv6addr_vlan_id, { "VLAN ID", "isis.lsp.grp_ipv6addr.vlan_id", FT_UINT16, BASE_DEC, NULL, 0x0fff, NULL, HFILL } }, { &hf_isis_lsp_grp_ipv6addr_number_of_records, { "Number of records", "isis.lsp.grp_ipv6addr.number_of_records", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_grp_ipv6addr_number_of_sources, { "Number of sources", "isis.lsp.grp_ipv6addr.number_of_sources", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_grp_ipv6addr_group_address, { "Group Address", "isis.lsp.grp_ipv6addr.group_address", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_grp_ipv6addr_source_address, { "Source Address", "isis.lsp.grp_ipv6addr.source_address", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_grp_unknown_length, { "Length", "isis.lsp.grp_unknown.length", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_rt_capable_trill_affinity_tlv, { "Affinity Sub-TLV", "isis.lsp.rt_capable.trill.affinity_tlv", FT_BOOLEAN, 32 , TFS(&tfs_supported_not_supported), 0x80000000, NULL, HFILL } }, { &hf_isis_lsp_rt_capable_trill_fgl_safe, { "FGL-safe", "isis.lsp.rt_capable.trill.fgl_safe", FT_BOOLEAN, 32 , TFS(&tfs_yes_no), 0x40000000, NULL, HFILL } }, { &hf_isis_lsp_rt_capable_trill_caps, { "Other Capabilities", "isis.lsp.rt_capable.trill.caps", FT_BOOLEAN, 32 , TFS(&tfs_supported_not_supported), 0x3ffc0000, NULL, HFILL } }, { &hf_isis_lsp_rt_capable_trill_flags, { "Extended Header Flags", "isis.lsp.rt_capable.trill.flags", FT_BOOLEAN, 32 , TFS(&tfs_supported_not_supported), 0x0003ffff, NULL, HFILL } }, { &hf_isis_lsp_rt_capable_trill_maximum_version, { "Maximum version", "isis.lsp.rt_capable.trill.maximum_version", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_rt_capable_trees_nof_trees_to_compute, { "Nof. trees to compute", "isis.lsp.rt_capable.trees.nof_trees_to_compute", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_rt_capable_trees_maximum_nof_trees_to_compute, { "Maximum nof. trees to compute", "isis.lsp.rt_capable.trees.maximum_nof_trees_to_compute", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_rt_capable_trees_nof_trees_to_use, { "Nof. trees to use", "isis.lsp.rt_capable.trees.nof_trees_to_use", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_rt_capable_tree_root_id_starting_tree_no, { "Starting tree no", "isis.lsp.rt_capable.tree_root_id.starting_tree_no", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_rt_capable_tree_root_id_nickname, { "Nickname", "isis.lsp.rt_capable.tree_root_id.nickname", FT_UINT16, BASE_HEX_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_rt_capable_nickname_nickname_priority, { "Nickname priority", "isis.lsp.rt_capable.nickname.nickname_priority", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_rt_capable_nickname_tree_root_priority, { "Tree root priority", "isis.lsp.rt_capable.nickname.tree_root_priority", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_rt_capable_nickname_nickname, { "Nickname", "isis.lsp.rt_capable.nickname.nickname", FT_UINT16, BASE_HEX_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_rt_capable_interested_vlans_nickname, { "Nickname", "isis.lsp.rt_capable.interested_vlans.nickname", FT_UINT16, BASE_HEX_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_rt_capable_interested_vlans_multicast_ipv4, { "IPv4 multicast router", "isis.lsp.rt_capable.interested_vlans.multicast_ipv4", FT_BOOLEAN, 16, TFS(&tfs_set_notset), 0x8000, NULL, HFILL } }, { &hf_isis_lsp_rt_capable_interested_vlans_multicast_ipv6, { "IPv6 multicast router", "isis.lsp.rt_capable.interested_vlans.multicast_ipv6", FT_BOOLEAN, 16, TFS(&tfs_set_notset), 0x4000, NULL, HFILL } }, { &hf_isis_lsp_rt_capable_interested_vlans_vlan_start_id, { "Vlan start id", "isis.lsp.rt_capable.interested_vlans.vlan_start_id", FT_UINT16, BASE_DEC, NULL, 0x0fff, NULL, HFILL } }, { &hf_isis_lsp_rt_capable_interested_vlans_vlan_end_id, { "Vlan end id", "isis.lsp.rt_capable.interested_vlans.vlan_end_id", FT_UINT16, BASE_DEC, NULL, 0x0fff, NULL, HFILL } }, { &hf_isis_lsp_rt_capable_interested_vlans_afs_lost_counter, { "Appointed forward state lost counter", "isis.lsp.rt_capable.interested_vlans.afs_lost_counter", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_rt_capable_tree_used_id_starting_tree_no, { "Starting tree no", "isis.lsp.rt_capable.tree_used_id.starting_tree_no", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_rt_capable_tree_used_id_nickname, { "Nickname", "isis.lsp.rt_capable.tree_used_id.nickname", FT_UINT16, BASE_HEX_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_rt_capable_vlan_group_primary_vlan_id, { "Primary vlan id", "isis.lsp.rt_capable.vlan_group.primary_vlan_id", FT_UINT16, BASE_DEC, NULL, 0x0fff, NULL, HFILL } }, { &hf_isis_lsp_rt_capable_vlan_group_secondary_vlan_id, { "Secondary vlan id", "isis.lsp.rt_capable.vlan_group.secondary_vlan_id", FT_UINT16, BASE_DEC, NULL, 0x0fff, NULL, HFILL } }, { &hf_isis_lsp_ipv6_reachability_subclvs_len, { "SubCLV Length", "isis.lsp.ipv6_reachability.subclvs_length", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_ipv6_reachability_ipv6_prefix, { "IPv6 prefix", "isis.lsp.ipv6_reachability.ipv6_prefix", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_ipv6_reachability_metric, { "Metric", "isis.lsp.ipv6_reachability.metric", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_ipv6_reachability_distribution, { "Distribution", "isis.lsp.ipv6_reachability.distribution", FT_BOOLEAN, 8, TFS(&tfs_down_up), 0x80, NULL, HFILL } }, { &hf_isis_lsp_ipv6_reachability_distribution_internal, { "Distribution", "isis.lsp.ipv6_reachability.distribution_internal", FT_BOOLEAN, 8, TFS(&tfs_external_internal), 0x40, NULL, HFILL } }, { &hf_isis_lsp_ipv6_reachability_subtlv, { "Sub-TLV", "isis.lsp.ipv6_reachability.subtlv", FT_BOOLEAN, 8, TFS(&tfs_yes_no), 0x20, NULL, HFILL } }, { &hf_isis_lsp_ipv6_reachability_reserved_bits, { "Reserved bits", "isis.lsp.ipv6_reachability.reserved_bits", FT_UINT8, BASE_HEX, NULL, 0x1F, NULL, HFILL } }, { &hf_isis_lsp_ipv6_reachability_prefix_length, { "Prefix Length", "isis.lsp.ipv6_reachability.prefix_length", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, /* rfc7794 */ { &hf_isis_lsp_prefix_attr_flags, { "Flags", "isis.lsp.prefix_attribute.flags", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_prefix_attr_flags_x, { "External Prefix", "isis.lsp.prefix_attribute.flags.x", FT_BOOLEAN, 8, TFS(&tfs_set_notset), ISIS_LSP_PFX_ATTR_FLAG_X, NULL, HFILL } }, { &hf_isis_lsp_prefix_attr_flags_r, { "Re-advertisement", "isis.lsp.prefix_attribute.flags.r", FT_BOOLEAN, 8, TFS(&tfs_set_notset), ISIS_LSP_PFX_ATTR_FLAG_R, NULL, HFILL } }, { &hf_isis_lsp_prefix_attr_flags_n, { "Node", "isis.lsp.prefix_attribute.flags.n", FT_BOOLEAN, 8, TFS(&tfs_set_notset), ISIS_LSP_PFX_ATTR_FLAG_N, NULL, HFILL } }, { &hf_isis_lsp_mt_cap_spb_instance_cist_root_identifier, { "CIST Root Identifier", "isis.lsp.mt_cap_spb_instance.cist_root_identifier", FT_BYTES, SEP_DASH, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_mt_cap_spb_instance_cist_external_root_path_cost, { "CIST External Root Path Cost", "isis.lsp.mt_cap_spb_instance.cist_external_root_path_cost", FT_UINT32, BASE_HEX_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_mt_cap_spb_instance_bridge_priority, { "Bridge Priority", "isis.lsp.mt_cap_spb_instance.bridge_priority", FT_UINT16, BASE_HEX_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_mt_cap_spb_instance_v, { "V", "isis.lsp.mt_cap_spb_instance.v", FT_BOOLEAN, 32, NULL, 0x00100000, NULL, HFILL } }, { &hf_isis_lsp_mt_cap_spb_instance_number_of_trees, { "Number of Trees", "isis.lsp.mt_cap_spb_instance.number_of_trees", FT_UINT16, BASE_HEX_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_mt_cap_spb_instance_vlanid_tuple_u, { "U", "isis.lsp.mt_cap_spb_instance.vlanid_tuple.u", FT_BOOLEAN, 8, NULL, 0x80, "Set if this bridge is currently using this ECT-ALGORITHM for I-SIDs it sources or sinks", HFILL } }, { &hf_isis_lsp_mt_cap_spb_instance_vlanid_tuple_m, { "M", "isis.lsp.mt_cap_spb_instance.vlanid_tuple.m", FT_BOOLEAN, 8, NULL, 0x40, "indicates if this is SPBM or SPBV mode", HFILL } }, { &hf_isis_lsp_mt_cap_spb_instance_vlanid_tuple_a, { "A", "isis.lsp.mt_cap_spb_instance.vlanid_tuple.a", FT_BOOLEAN, 8, NULL, 0x20, "When set, declares this is an SPVID with auto-allocation", HFILL } }, { &hf_isis_lsp_mt_cap_spb_instance_vlanid_tuple_reserved, { "Reserved", "isis.lsp.mt_cap_spb_instance.vlanid_tuple.reserved", FT_UINT8, BASE_HEX, NULL, 0x1F, NULL, HFILL } }, { &hf_isis_lsp_mt_cap_spb_instance_vlanid_tuple_ect, { "ECT-ALGORITHM", "isis.lsp.mt_cap_spb_instance.vlanid_tuple.ect", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_mt_cap_spb_instance_vlanid_tuple_base_vid, { "Base VID", "isis.lsp.mt_cap_spb_instance.vlanid_tuple.basevid", FT_UINT24, BASE_DEC, NULL, 0xFFF000, NULL, HFILL } }, { &hf_isis_lsp_mt_cap_spb_instance_vlanid_tuple_spvid, { "SPVID", "isis.lsp.mt_cap_spb_instance.vlanid_tuple.spvid", FT_UINT24, BASE_DEC, NULL, 0x000FFF, NULL, HFILL } }, { &hf_isis_lsp_mt_cap_spb_opaque_algorithm, { "Algorithm", "isis.lsp.mt_cap_spb_opaque.algorithm", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_mt_cap_spb_opaque_information, { "information", "isis.lsp.mt_cap_spb_opaque.information", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_mt_cap_spbm_service_identifier_b_mac, { "B-MAC", "isis.lsp.mt_cap_spbm_service_identifier.b_mac", FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_mt_cap_spbm_service_identifier_base_vid, { "Base-VID", "isis.lsp.mt_cap_spbm_service_identifier.base_vid", FT_UINT16, BASE_HEX_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_mt_cap_spbm_service_identifier_t, { "T", "isis.lsp.mt_cap_spbm_service_identifier.t", FT_BOOLEAN, 8, NULL, 0x80, NULL, HFILL } }, { &hf_isis_lsp_mt_cap_spbm_service_identifier_r, { "R", "isis.lsp.mt_cap_spbm_service_identifier.r", FT_BOOLEAN, 8, NULL, 0x40, NULL, HFILL } }, { &hf_isis_lsp_mt_cap_spbm_service_identifier_reserved, { "Reserved", "isis.lsp.mt_cap_spbm_service_identifier.reserved", FT_UINT8, BASE_HEX, NULL, 0x3F, NULL, HFILL } }, { &hf_isis_lsp_mt_cap_spbm_service_identifier_i_sid, { "I-SID", "isis.lsp.mt_cap_spbm_service_identifier.i_sid", FT_UINT24, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_mt_cap_mtid, { "Topology ID", "isis.lsp.mt_cap.mtid", FT_UINT16, BASE_DEC|BASE_RANGE_STRING, RVALS(mtid_strings), 0x0fff, NULL, HFILL } }, { &hf_isis_lsp_eis_neighbors_reserved, { "Reserved", "isis.lsp.eis_neighbors_clv_inner.reserved", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_eis_neighbors_es_neighbor_id, { "ES Neighbor ID", "isis.lsp.eis_neighbors.es_neighbor_id", FT_SYSTEM_ID, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_eis_neighbors_is_neighbor_id, { "IS Neighbor", "isis.lsp.eis_neighbors.is_neighbor", FT_SYSTEM_ID, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_eis_neighbors_default_metric, { "Default Metric", "isis.lsp.eis_neighbors.default_metric", FT_UINT8, BASE_DEC, NULL, 0x3F, NULL, HFILL } }, { &hf_isis_lsp_eis_neighbors_delay_metric, { "Delay Metric", "isis.lsp.eis_neighbors.delay_metric", FT_UINT8, BASE_DEC, NULL, 0x3F, NULL, HFILL } }, { &hf_isis_lsp_eis_neighbors_expense_metric, { "Expense Metric", "isis.lsp.eis_neighbors.expense_metric", FT_UINT8, BASE_DEC, NULL, 0x3F, NULL, HFILL } }, { &hf_isis_lsp_eis_neighbors_error_metric, { "Error Metric", "isis.lsp.eis_neighbors.error_metric", FT_UINT8, BASE_DEC, NULL, 0x3F, NULL, HFILL } }, { &hf_isis_lsp_maximum_link_bandwidth, { "Maximum link bandwidth", "isis.lsp.maximum_link_bandwidth", FT_FLOAT, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_reservable_link_bandwidth, { "Reservable link bandwidth", "isis.lsp.reservable_link_bandwidth", FT_FLOAT, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_ext_is_reachability_is_neighbor_id, { "IS neighbor ID", "isis.lsp.ext_is_reachability.is_neighbor_id", FT_SYSTEM_ID, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_ext_is_reachability_metric, { "Metric", "isis.lsp.ext_is_reachability.metric", FT_UINT24, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_ext_is_reachability_subclvs_len, { "SubCLV Length", "isis.lsp.ext_is_reachability.subclvs_length", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_ext_is_reachability_code, { "Code", "isis.lsp.ext_is_reachability.code", FT_UINT8, BASE_DEC, VALS(isis_lsp_ext_is_reachability_code_vals), 0x0, NULL, HFILL } }, { &hf_isis_lsp_ext_is_reachability_len, { "Length", "isis.lsp.ext_is_reachability.length", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_ext_is_reachability_value, { "Value", "isis.lsp.ext_is_reachability.value", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_ext_is_reachability_link_local_identifier, { "Link Local Identifier", "isis.lsp.ext_is_reachability.link_local_identifier", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_ext_is_reachability_link_remote_identifier, { "Link Remote Identifier", "isis.lsp.ext_is_reachability.link_remote_identifier", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_ext_is_reachability_ipv4_interface_address, { "IPv4 interface address", "isis.lsp.ext_is_reachability.ipv4_interface_address", FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_ext_is_reachability_ipv4_neighbor_address, { "IPv4 neighbor address", "isis.lsp.ext_is_reachability.ipv4_neighbor_address", FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_ext_is_reachability_traffic_engineering_default_metric, { "Traffic engineering default metric", "isis.lsp.ext_is_reachability.traffic_engineering_default_metric", FT_UINT24, BASE_DEC, NULL, 0x0, NULL, HFILL } }, /* rfc8570 */ { &hf_isis_lsp_ext_is_reachability_unidir_link_flags, { "Flags", "isis.lsp.ext_is_reachability.unidirectional_link_flags", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_ext_is_reachability_unidir_link_flags_a, { "Anomalous bit", "isis.lsp.ext_is_reachability.unidirectional_link_flags.a", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x80, NULL, HFILL } }, { &hf_isis_lsp_ext_is_reachability_unidir_link_reserved, { "Reserved", "isis.lsp.ext_is_reachability.unidirectional_link_reserved", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_ext_is_reachability_unidir_link_delay, { "Delay", "isis.lsp.ext_is_reachability.unidirectional_link_delay", FT_UINT24, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_isis_lsp_ext_is_reachability_unidir_link_delay_min, { "Min Delay", "isis.lsp.ext_is_reachability.unidirectional_link_delay_min", FT_UINT24, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_isis_lsp_ext_is_reachability_unidir_link_delay_max, { "Max Delay", "isis.lsp.ext_is_reachability.unidirectional_link_delay_max", FT_UINT24, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_isis_lsp_ext_is_reachability_unidir_delay_variation, { "Delay Variation", "isis.lsp.ext_is_reachability.unidirectional_delay_variation", FT_UINT24, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_isis_lsp_ext_is_reachability_unidir_link_loss, { "Link Loss", "isis.lsp.ext_is_reachability.unidirectional_link_loss", FT_UINT24, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_isis_lsp_ext_is_reachability_unidir_residual_bandwidth, { "Residual Bandwidth", "isis.lsp.ext_is_reachability.unidirectional_residual_bandwidth", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_isis_lsp_ext_is_reachability_unidir_available_bandwidth, { "Available Bandwidth", "isis.lsp.ext_is_reachability.unidirectional_available_bandwidth", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_isis_lsp_ext_is_reachability_unidir_utilized_bandwidth, { "Utilized Bandwidth", "isis.lsp.ext_is_reachability.unidirectional_utilized_bandwidth", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_isis_lsp_partition_designated_l2_is, { "Partition designated L2 IS", "isis.lsp.partition_designated_l2_is", FT_SYSTEM_ID, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_originating_lsp_buffer_size, { "Neighbor originating buffer size", "isis.lsp.originating_lsp_buffer_size", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_error_metric, { "Error metric", "isis.lsp.error_metric", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x08, NULL, HFILL } }, { &hf_isis_lsp_expense_metric, { "Expense metric", "isis.lsp.expense_metric", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x04, NULL, HFILL } }, { &hf_isis_lsp_delay_metric, { "Delay metric", "isis.lsp.delay_metric", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x02, NULL, HFILL } }, { &hf_isis_lsp_default_metric, { "Default metric", "isis.lsp.default_metric", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x01, NULL, HFILL } }, { &hf_isis_lsp_ip_reachability_default_metric_ie, { "Default Metric IE", "isis.lsp.ip_reachability.default_metric_ie", FT_BOOLEAN, 8, TFS(&tfs_external_internal), 0x40, NULL, HFILL } }, { &hf_isis_lsp_ip_reachability_delay_metric_support, { "Delay Metric", "isis.lsp.ip_reachability.delay_metric_support", FT_BOOLEAN, 8, TFS(&tfs_not_supported_supported), 0x80, NULL, HFILL } }, { &hf_isis_lsp_ip_reachability_expense_metric_support, { "Expense Metric", "isis.lsp.ip_reachability.expense_metric_support", FT_BOOLEAN, 8, TFS(&tfs_not_supported_supported), 0x80, NULL, HFILL } }, { &hf_isis_lsp_ip_reachability_error_metric_support, { "Error Metric", "isis.lsp.ip_reachability.error_metric_support", FT_BOOLEAN, 8, TFS(&tfs_not_supported_supported), 0x80, NULL, HFILL } }, { &hf_isis_lsp_mt_cap_spsourceid, { "SPSourceId", "isis.lsp.mt_cap.spsourceid", FT_UINT32, BASE_HEX_DEC, NULL, 0x000fffff, NULL, HFILL } }, { &hf_isis_lsp_mt_cap_overload, { "Overload", "isis.lsp.overload", FT_BOOLEAN, 16, NULL, 0x8000, NULL, HFILL } }, { &hf_isis_lsp_eis_neighbors_default_metric_ie, { "Default Metric", "isis.lsp.eis_neighbors.default_metric_ie", FT_BOOLEAN, 8, TFS(&tfs_external_internal), 0x40, NULL, HFILL } }, { &hf_isis_lsp_eis_neighbors_delay_metric_supported, { "Delay Metric", "isis.lsp.eis_neighbors_delay_metric.supported", FT_BOOLEAN, 8, TFS(&tfs_not_supported_supported), 0x80, NULL, HFILL } }, { &hf_isis_lsp_eis_neighbors_expense_metric_supported, { "Expense Metric", "isis.lsp.eis_neighbors.expense_metric_supported", FT_BOOLEAN, 8, TFS(&tfs_not_supported_supported), 0x80, NULL, HFILL } }, { &hf_isis_lsp_eis_neighbors_error_metric_supported, { "Error Metric", "isis.lsp.eis_neighbors.error_metric_supported", FT_BOOLEAN, 8, TFS(&tfs_not_supported_supported), 0x80, NULL, HFILL } }, { &hf_isis_lsp_unrsv_bw_priority_level, { "priority level", "isis.lsp.unrsv_bw.priority_level", FT_FLOAT, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_ip_reachability_distribution, { "Distribution", "isis.lsp.ip_reachability.distribution", FT_BOOLEAN, 8, TFS(&tfs_down_up), 0x80, NULL, HFILL } }, { &hf_isis_lsp_ip_reachability_delay_metric_ie, { "Delay Metric", "isis.lsp.ip_reachability.delay_metric_ie", FT_BOOLEAN, 8, TFS(&tfs_external_internal), 0x40, NULL, HFILL } }, { &hf_isis_lsp_ip_reachability_expense_metric_ie, { "Expense Metric", "isis.lsp.ip_reachability.expense_metric_ie", FT_BOOLEAN, 8, TFS(&tfs_external_internal), 0x40, NULL, HFILL } }, { &hf_isis_lsp_ip_reachability_error_metric_ie, { "Error Metric", "isis.lsp.ip_reachability.error_metric_ie", FT_BOOLEAN, 8, TFS(&tfs_external_internal), 0x40, NULL, HFILL } }, { &hf_isis_lsp_eis_neighbors_delay_metric_ie, { "Delay Metric", "isis.lsp.eis_neighbors.delay_metric_ie", FT_BOOLEAN, 8, TFS(&tfs_external_internal), 0x40, NULL, HFILL } }, { &hf_isis_lsp_eis_neighbors_expense_metric_ie, { "Expense Metric", "isis.lsp.eis_neighbors.expense_metric_ie", FT_BOOLEAN, 8, TFS(&tfs_external_internal), 0x40, NULL, HFILL } }, { &hf_isis_lsp_eis_neighbors_error_metric_ie, { "Error Metric", "isis.lsp.eis_neighbors.error_metric_ie", FT_BOOLEAN, 8, TFS(&tfs_external_internal), 0x40, NULL, HFILL } }, { &hf_isis_lsp_rt_capable_router_id, { "Router ID", "isis.lsp.rt_capable.router_id", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_rt_capable_flag_s, { "S bit", "isis.lsp.rt_capable.flag_s", FT_BOOLEAN, 8, NULL, 0x01, NULL, HFILL } }, { &hf_isis_lsp_rt_capable_flag_d, { "D bit", "isis.lsp.rt_capable.flag_d", FT_BOOLEAN, 8, NULL, 0x02, NULL, HFILL } }, { &hf_isis_lsp_clv_te_node_cap_b_bit, { "B bit: P2MP Branch LSR capability", "isis.lsp.te_node_cap.b_bit", FT_BOOLEAN, 8, NULL, 0x80, NULL, HFILL } }, { &hf_isis_lsp_clv_te_node_cap_e_bit, { "E bit: P2MP Bud LSR capability", "isis.lsp.te_node_cap.e_bit", FT_BOOLEAN, 8, NULL, 0x40, NULL, HFILL } }, { &hf_isis_lsp_clv_te_node_cap_m_bit, { "M bit: MPLS-TE support", "isis.lsp.te_node_cap.m_bit", FT_BOOLEAN, 8, NULL, 0x20, NULL, HFILL } }, { &hf_isis_lsp_clv_te_node_cap_g_bit, { "G bit: GMPLS support", "isis.lsp.te_node_cap.g_bit", FT_BOOLEAN, 8, NULL, 0x10, NULL, HFILL } }, { &hf_isis_lsp_clv_te_node_cap_p_bit, { "P bit: P2MP RSVP-TE support", "isis.lsp.te_node_cap.p_bit", FT_BOOLEAN, 8, NULL, 0x08, NULL, HFILL } }, { &hf_isis_lsp_clv_sr_cap_i_flag, { "I flag: IPv4 support", "isis.lsp.sr_cap.i_flag", FT_BOOLEAN, 8, NULL, 0x80, NULL, HFILL } }, { &hf_isis_lsp_clv_sr_cap_v_flag, { "V flag: IPv6 support", "isis.lsp.sr_cap.v_flag", FT_BOOLEAN, 8, NULL, 0x40, NULL, HFILL } }, { &hf_isis_lsp_clv_sr_cap_range, { "Range", "isis.lsp.sr_cap.range", FT_UINT24, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_clv_sr_cap_sid, { "SID", "isis.lsp.sr_cap.sid", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_clv_sr_cap_label, { "Label", "isis.lsp.sr_cap.label", FT_UINT24, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_clv_sr_alg, { "Algorithm", "isis.lsp.sr_alg", FT_UINT8, BASE_DEC, VALS(isis_igp_alg_vals), 0x0, NULL, HFILL } }, { &hf_isis_lsp_clv_sr_lb_flags, { "Flags", "isis.lsp.sr_local_block.flags", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_clv_srv6_cap_flags, { "Flags", "isis.lsp.srv6_cap.flags", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_clv_srv6_cap_flags_o, { "OAM flag", "isis.lsp.srv6_cap.flags.o", FT_BOOLEAN, 16, TFS(&tfs_set_notset), 0x4000, NULL, HFILL } }, { &hf_isis_lsp_clv_srv6_cap_flags_unused, { "Unused", "isis.lsp.srv6_cap.flags.unused", FT_UINT16, BASE_HEX, NULL, 0xbfff, NULL, HFILL } }, { &hf_isis_lsp_srv6_loc_metric, { "Metric", "isis.lsp.srv6_locator.metric", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_srv6_loc_flags, { "Flags", "isis.lsp.srv6_locator.flags", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_srv6_loc_flags_d, { "Down bit", "isis.lsp.srv6_locator.flags.d", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x80, NULL, HFILL } }, { &hf_isis_lsp_srv6_loc_flags_reserved, { "Reserved", "isis.lsp.srv6_locator.flags.reserved", FT_UINT8, BASE_HEX, NULL, 0x7f, NULL, HFILL } }, { &hf_isis_lsp_srv6_loc_alg, { "Algorithm", "isis.lsp.srv6_locator.algorithm", FT_UINT8, BASE_DEC, VALS(isis_igp_alg_vals), 0x0, NULL, HFILL } }, { &hf_isis_lsp_srv6_loc_size, { "Locator Size", "isis.lsp.srv6_locator.locator_size", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_srv6_loc_locator, { "Locator", "isis.lsp.srv6_locator.locator", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_srv6_loc_subclvs_len, { "SubCLV Length", "isis.lsp.srv6_locator.subclvs_length", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_srv6_loc_sub_tlv_type, { "Code", "isis.lsp.srv6_locator.sub_tlv_type", FT_UINT8, BASE_DEC, VALS(isis_lsp_srv6_loc_sub_tlv_vals), 0x0, NULL, HFILL } }, { &hf_isis_lsp_srv6_loc_sub_tlv_length, { "Length", "isis.lsp.srv6_locator.sub_tlv_length", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_clv_srv6_end_sid_flags, { "Flags", "isis.lsp.srv6_end_sid.flags", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_clv_srv6_end_sid_endpoint_func, { "SRv6 Endpoint Function", "isis.lsp.srv6_end_sid.endpoint_function", FT_UINT16, BASE_DEC, VALS(srv6_endpoint_type_vals), 0x0, NULL, HFILL } }, { &hf_isis_lsp_clv_srv6_end_sid_sid, { "SID", "isis.lsp.srv6_end_sid.sid", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_clv_srv6_end_sid_subsubclvs_len, { "SubSubCLV Length", "isis.lsp.srv6_end_sid.subsubclvs_length", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_clv_srv6_endx_sid_system_id, { "System-ID", "isis.lsp.srv6_endx_sid.system_id", FT_SYSTEM_ID, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_clv_srv6_endx_sid_flags, { "Flags", "isis.lsp.srv6_endx_sid.flags", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_clv_srv6_endx_sid_flags_b, { "Backup flag", "isis.lsp.srv6_endx_sid.flags.b", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x80, NULL, HFILL } }, { &hf_isis_lsp_clv_srv6_endx_sid_flags_s, { "Set flag", "isis.lsp.srv6_endx_sid.flags.s", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x40, NULL, HFILL } }, { &hf_isis_lsp_clv_srv6_endx_sid_flags_p, { "Persistent flag", "isis.lsp.srv6_endx_sid.flags.p", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x20, NULL, HFILL } }, { &hf_isis_lsp_clv_srv6_endx_sid_alg, { "Algorithm", "isis.lsp.srv6_endx_sid.algorithm", FT_UINT8, BASE_DEC, VALS(isis_igp_alg_vals), 0x0, NULL, HFILL } }, { &hf_isis_lsp_clv_srv6_endx_sid_weight, { "Weight", "isis.lsp.srv6_endx_sid.weight", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_clv_srv6_endx_sid_endpoint_func, { "SRv6 Endpoint Function", "isis.lsp.srv6_endx_sid.endpoint_function", FT_UINT16, BASE_DEC, VALS(srv6_endpoint_type_vals), 0x0, NULL, HFILL } }, { &hf_isis_lsp_clv_srv6_endx_sid_sid, { "SID", "isis.lsp.srv6_endx_sid.sid", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_clv_srv6_endx_sid_subsubclvs_len, { "SubSubCLV Length", "isis.lsp.srv6_endx_sid.subsubclvs_length", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, /* rfc8491 */ { &hf_isis_lsp_clv_igp_msd_type, { "MSD Type", "isis.lsp.igp_msd_type", FT_UINT8, BASE_DEC, VALS(isis_lsp_igp_msd_types), 0x0, NULL, HFILL } }, { &hf_isis_lsp_clv_igp_msd_value, { "MSD Value", "isis.lsp.igp_msd_value", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, /* rfc7308 */ { &hf_isis_lsp_clv_ext_admin_group, { "Extended Admin Group", "isis.lsp.extended_admin_group", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL } }, /* rfc8919 */ { &hf_isis_lsp_clv_app_sabm_legacy, { "Legacy flag (L)", "isis.lsp.application.sabm.legacy", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x80, NULL, HFILL } }, { &hf_isis_lsp_clv_app_sabm_length, { "SABM Length", "isis.lsp.application.sabm.length", FT_UINT8, BASE_DEC, NULL, 0x7f, NULL, HFILL } }, { &hf_isis_lsp_clv_app_udabm_reserved, { "Reserved (R)", "isis.lsp.application.udabm.reserved", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x80, NULL, HFILL } }, { &hf_isis_lsp_clv_app_udabm_length, { "UDABM Length", "isis.lsp.application.udabm.length", FT_UINT8, BASE_DEC, NULL, 0x7f, NULL, HFILL } }, { &hf_isis_lsp_clv_app_sabm_bits, { "Standard Application Identifier Bit Mask", "isis.lsp.application.sabm.bits", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_clv_app_sabm_bits_r, { "RSVP-TE bit (R)", "isis.lsp.application.sabm.bits.r", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x80, NULL, HFILL } }, { &hf_isis_lsp_clv_app_sabm_bits_s, { "Segment Routing Policy bit (S)", "isis.lsp.application.sabm.bits.s", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x40, NULL, HFILL } }, { &hf_isis_lsp_clv_app_sabm_bits_f, { "Loop-Free Alternate (LFA) bit (F)", "isis.lsp.application.sabm.bits.f", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x20, NULL, HFILL } }, { &hf_isis_lsp_clv_app_sabm_bits_x, { "Flexible Algorithm bit (X)", "isis.lsp.application.sabm.bits.x", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x10, NULL, HFILL } }, { &hf_isis_lsp_clv_app_udabm_bits, { "User-Defined Application Identifier Bit Mask", "isis.lsp.application.udabm.bits", FT_BYTES, SEP_SPACE, NULL, 0x0, NULL, HFILL } }, /* draft-ietf-lsr-flex-algo-16 */ { &hf_isis_lsp_clv_flex_algo_algorithm, { "Flex-Algorithm", "isis.lsp.flex_algorithm.algorithm", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_clv_flex_algo_metric_type, { "Metric-Type", "isis.lsp.flex_algorithm.metric_type", FT_UINT8, BASE_DEC, VALS(isis_lsp_flex_algo_metric_type_vals), 0x0, NULL, HFILL } }, { &hf_isis_lsp_clv_flex_algo_calc_type, { "Calculation-Type", "isis.lsp.flex_algorithm.calculation_type", FT_UINT8, BASE_DEC, VALS(isis_igp_alg_vals), 0x0, NULL, HFILL } }, { &hf_isis_lsp_clv_flex_algo_priority, { "Priority", "isis.lsp.flex_algorithm.priority", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, /* rfc6232 */ { &hf_isis_lsp_purge_orig_id_num, { "Number of System IDs", "isis.lsp.purge_originator_id.num", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_purge_orig_id_system_id, { "System ID", "isis.lsp.purge_originator_id.system_id", FT_SYSTEM_ID, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_area_address, { "Area address", "isis.lsp.area_address", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_instance_identifier, { "Instance Identifier", "isis.lsp.iid", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_supported_itid, { "Supported ITID", "isis.lsp.supported_itid", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_clv_nlpid_nlpid, { "NLPID", "isis.lsp.clv_nlpid.nlpid", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_ip_authentication, { "IP Authentication", "isis.lsp.ip_authentication", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_authentication, { "Authentication", "isis.lsp.authentication", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_area_address_str, { "Area address", "isis.lsp.area_address_str", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_is_virtual, { "IsVirtual", "isis.lsp.is_virtual", FT_BOOLEAN, 8, TFS(&tfs_yes_no), 0x0, NULL, HFILL } }, { &hf_isis_lsp_group, { "Group", "isis.lsp.group", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_default, { "Default metric", "isis.lsp.default", FT_UINT8, BASE_DEC, NULL, 0x3f, NULL, HFILL } }, { &hf_isis_lsp_default_support, { "Default metric supported", "isis.lsp.default_support", FT_BOOLEAN, 8, TFS(&tfs_no_yes), 0x80, NULL, HFILL } }, { &hf_isis_lsp_delay, { "Delay metric", "isis.lsp.delay", FT_UINT8, BASE_DEC, NULL, 0x3f, NULL, HFILL } }, { &hf_isis_lsp_delay_support, { "Delay metric supported", "isis.lsp.delay_support", FT_BOOLEAN, 8, TFS(&tfs_no_yes), 0x80, NULL, HFILL } }, { &hf_isis_lsp_expense, { "Expense metric", "isis.lsp.expense", FT_UINT8, BASE_DEC, NULL, 0xef, NULL, HFILL } }, { &hf_isis_lsp_expense_support, { "Expense metric supported", "isis.lsp.expense_support", FT_BOOLEAN, 8, TFS(&tfs_no_yes), 0x80, NULL, HFILL } }, { &hf_isis_lsp_error, { "Error metric", "isis.lsp.error", FT_UINT8, BASE_DEC, NULL, 0x3F, NULL, HFILL } }, { &hf_isis_lsp_error_support, { "Error metric supported", "isis.lsp.error_support", FT_BOOLEAN, 8, TFS(&tfs_no_yes), 0x80, NULL, HFILL } }, /* rfc6119 */ { &hf_isis_lsp_clv_ipv6_te_router_id, { "IPv6 TE Router ID", "isis.lsp.clv_ipv6_te_router_id", FT_IPv6, BASE_NONE, NULL, 0x0, "IPv6 Traffic Engineering Router ID", HFILL } }, { &hf_isis_lsp_ext_is_reachability_ipv6_interface_address, { "IPv6 interface address", "isis.lsp.ext_is_reachability.ipv6_interface_address", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_ext_is_reachability_ipv6_neighbor_address, { "IPv6 neighbor address", "isis.lsp.ext_is_reachability.ipv6_neighbor_address", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_clv_bier_alg, { "BIER Algorithm", "isis.lsp.bier_alg", FT_UINT8, BASE_DEC | BASE_RANGE_STRING, RVALS(isis_lsp_bier_alg_vals), 0x0, NULL, HFILL } }, { &hf_isis_lsp_clv_bier_igp_alg, { "IGP Algorithm", "isis.lsp.bier_igp_alg", FT_UINT8, BASE_DEC, VALS(isis_igp_alg_vals), 0x0, NULL, HFILL } }, { &hf_isis_lsp_clv_bier_subdomain, { "BIER sub-domain", "isis.lsp.bier_subdomain", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_clv_bier_bfrid, { "BFR-id", "isis.lsp.bier_bfrid", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_clv_bier_subsub_type, { "Type", "isis.lsp.bier.subsub.type", FT_UINT8, BASE_DEC, VALS(isis_lsp_bier_subsubtlv_type_vals), 0x0, NULL, HFILL } }, { &hf_isis_lsp_clv_bier_subsub_len, { "Length", "isis.lsp.bier.subsub.length", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_clv_bier_subsub_mplsencap_maxsi, { "Maximum Set Identifier", "isis.lsp.bier.subsub.mplsencap.maxsi", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_clv_bier_subsub_mplsencap_bslen, { "BitString Length", "isis.lsp.bier.subsub.mplsencap.bslen", FT_UINT8, BASE_DEC, NULL, 0xF0, NULL, HFILL } }, { &hf_isis_lsp_clv_bier_subsub_mplsencap_label, { "Label", "isis.lsp.bier.subsub.mplsencap.label", FT_UINT24, BASE_DEC, NULL, 0x0FFFFF, NULL, HFILL } }, /* rfc 6165 */ { &hf_isis_lsp_mac_reachability_topoid_nick, { "Topology-id/Nickname", "isis.lsp.mac_reachability.topoid_nick", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_mac_reachability_confidence, { "Confidence", "isis.lsp.mac_reachability.confidence", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_mac_reachability_reserved, { "Reserved", "isis.lsp.mac_reachability.reserved", FT_UINT16, BASE_DEC, NULL, 0xf000, NULL, HFILL } }, { &hf_isis_lsp_mac_reachability_vlan, { "VLAN-ID", "isis.lsp.mac_reachability.vlan", FT_UINT16, BASE_DEC, NULL, 0x0fff, NULL, HFILL } }, { &hf_isis_lsp_mac_reachability_mac, { "MAC Address", "isis.lsp.mac_reachability.mac", FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_mac_reachability_chassismac, { "Chassis MAC", "isis.lsp.mac_reachability.chassismac", FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_mac_reachability_fanmcast, { "FAN Mcast", "isis.lsp.mac_reachability.fanmcast", FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL } }, /* Avaya proprietary */ { &hf_isis_lsp_avaya_ipvpn_unknown, { "Unknown", "isis.lsp.avaya.ipvpn.unknown", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_avaya_ipvpn_system_id, { "System-ID", "isis.lsp.avaya.ipvpn.system_id", FT_SYSTEM_ID, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_avaya_ipvpn_vrfsid, { "Vrf I-SID", "isis.lsp.avaya.ipvpn.vrfsid", FT_UINT24, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_avaya_ipvpn_subtlvbytes, { "SubTLV Bytes", "isis.lsp.avaya.ipvpn.subtlvbytes", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_avaya_ipvpn_subtlvtype, { "SubTLV Type", "isis.lsp.avaya.ipvpn.subtlvtype", FT_UINT8, BASE_DEC, VALS(isis_lsp_avaya_ipvpn_subtlv_code_vals), 0x0, NULL, HFILL } }, { &hf_isis_lsp_avaya_ipvpn_subtlvlength, { "SubTLV Length", "isis.lsp.avaya.ipvpn.subtlvlength", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_avaya_ipvpn_unknown_sub, { "Unknown", "isis.lsp.avaya.ipvpn.sub.unknown", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_avaya_ipvpn_ipv4_metric, { "Metric", "isis.lsp.avaya.ipvpn.ipv4.metric", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_avaya_ipvpn_ipv4_metrictype, { "Metric Type", "isis.lsp.avaya.ipvpn.ipv4.metrictype", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_avaya_ipvpn_ipv4_addr, { "IPv4 Address", "isis.lsp.avaya.ipvpn.ipv4.address", FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_avaya_ipvpn_ipv4_mask, { "IPv4 Mask", "isis.lsp.avaya.ipvpn.ipv4.mask", FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_avaya_ipvpn_ipv6_metric, { "Metric", "isis.lsp.avaya.ipvpn.ipv6.metric", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_avaya_ipvpn_ipv6_prefixlen, { "Prefix length", "isis.lsp.avaya.ipvpn.ipv6.prefixlen", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_avaya_ipvpn_ipv6_prefix, { "Prefix", "isis.lsp.avaya.ipvpn.ipv6.prefix", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_avaya_185_unknown, { "Unknown", "isis.lsp.avaya.185.unknown", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_isis_lsp_avaya_186_unknown, { "Unknown", "isis.lsp.avaya.186.unknown", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } }, }; static gint *ett[] = { &ett_isis_lsp, &ett_isis_lsp_info, &ett_isis_lsp_att, &ett_isis_lsp_cksum, &ett_isis_lsp_clv_area_addr, &ett_isis_lsp_clv_is_neighbors, &ett_isis_lsp_clv_instance_identifier, &ett_isis_lsp_clv_ext_is_reachability, /* CLV 22 */ &ett_isis_lsp_part_of_clv_ext_is_reachability, &ett_isis_lsp_part_of_clv_ext_is_reachability_subtlv, &ett_isis_lsp_subclv_admin_group, &ett_isis_lsp_subclv_unrsv_bw, &ett_isis_lsp_subclv_bw_ct, &ett_isis_lsp_subclv_spb_link_metric, &ett_isis_lsp_adj_sid_flags, &ett_isis_lsp_clv_unknown, &ett_isis_lsp_clv_partition_dis, &ett_isis_lsp_clv_prefix_neighbors, &ett_isis_lsp_clv_authentication, &ett_isis_lsp_clv_ip_authentication, &ett_isis_lsp_clv_nlpid_nlpid, &ett_isis_lsp_clv_hostname, &ett_isis_lsp_clv_srlg, &ett_isis_lsp_clv_ipv4_int_addr, &ett_isis_lsp_clv_ipv6_int_addr, /* CLV 232 */ &ett_isis_lsp_clv_mt_cap, &ett_isis_lsp_clv_mt_cap_spb_instance, &ett_isis_lsp_clv_mt_cap_spbm_service_identifier, &ett_isis_lsp_clv_mt_cap_spbv_mac_address, &ett_isis_lsp_clv_sid_label_binding, &ett_isis_lsp_clv_te_router_id, &ett_isis_lsp_clv_ip_reachability, &ett_isis_lsp_clv_ip_reach_subclv, &ett_isis_lsp_clv_ext_ip_reachability, /* CLV 135 */ &ett_isis_lsp_part_of_clv_ext_ip_reachability, &ett_isis_lsp_prefix_sid_flags, &ett_isis_lsp_prefix_attr_flags, &ett_isis_lsp_clv_ipv6_reachability, /* CLV 236 */ &ett_isis_lsp_part_of_clv_ipv6_reachability, &ett_isis_lsp_clv_mt, &ett_isis_lsp_clv_mt_is, &ett_isis_lsp_part_of_clv_mt_is, &ett_isis_lsp_clv_rt_capable, /*CLV 242*/ &ett_isis_lsp_clv_te_node_cap_desc, &ett_isis_lsp_clv_trill_version, &ett_isis_lsp_clv_trees, &ett_isis_lsp_clv_root_id, &ett_isis_lsp_clv_nickname, &ett_isis_lsp_clv_interested_vlans, &ett_isis_lsp_clv_tree_used, &ett_isis_lsp_clv_vlan_group, &ett_isis_lsp_clv_grp_address, /*CLV 142*/ &ett_isis_lsp_clv_grp_macaddr, &ett_isis_lsp_clv_grp_ipv4addr, &ett_isis_lsp_clv_grp_ipv6addr, &ett_isis_lsp_clv_grp_unknown, &ett_isis_lsp_clv_mt_reachable_IPv4_prefx, &ett_isis_lsp_clv_mt_reachable_IPv6_prefx, &ett_isis_lsp_clv_purge_orig_id, /* CLV 13 */ &ett_isis_lsp_clv_originating_buff_size, /* CLV 14 */ &ett_isis_lsp_clv_sr_cap, &ett_isis_lsp_clv_sr_sid_label, &ett_isis_lsp_clv_sr_alg, &ett_isis_lsp_clv_sr_lb, &ett_isis_lsp_clv_bier_subsub_tlv, &ett_isis_lsp_clv_node_msd, &ett_isis_lsp_clv_srv6_cap, &ett_isis_lsp_clv_srv6_cap_flags, &ett_isis_lsp_clv_ipv6_te_rtrid, &ett_isis_lsp_clv_srv6_endx_sid_flags, &ett_isis_lsp_clv_srv6_locator, &ett_isis_lsp_clv_srv6_loc_flags, &ett_isis_lsp_clv_srv6_loc_sub_tlv, &ett_isis_lsp_clv_flex_algo_def, &ett_isis_lsp_clv_flex_algo_def_sub_tlv, &ett_isis_lsp_clv_app_sabm_bits, &ett_isis_lsp_sl_flags, &ett_isis_lsp_sl_sub_tlv, &ett_isis_lsp_sl_sub_tlv_flags, &ett_isis_lsp_clv_ipv6_te_router_id, /* CLV 140, rfc6119 */ &ett_isis_lsp_clv_mac_reachability, /* CLV 147, rfc6165 */ &ett_isis_lsp_clv_avaya_ipvpn, &ett_isis_lsp_clv_avaya_ipvpn_subtlv, &ett_isis_lsp_clv_avaya_ipvpn_mc, &ett_isis_lsp_clv_avaya_ip_grt_mc, &ett_isis_lsp_clv_unidir_link_flags, }; static ei_register_info ei[] = { { &ei_isis_lsp_short_pdu, { "isis.lsp.short_pdu", PI_MALFORMED, PI_ERROR, "PDU length less than header length", EXPFILL }}, { &ei_isis_lsp_long_pdu, { "isis.lsp.long_pdu", PI_MALFORMED, PI_ERROR, "PDU length greater than packet length", EXPFILL }}, { &ei_isis_lsp_bad_checksum, { "isis.lsp.bad_checksum", PI_CHECKSUM, PI_ERROR, "Bad checksum", EXPFILL }}, { &ei_isis_lsp_subtlv, { "isis.lsp.subtlv.unknown", PI_PROTOCOL, PI_WARN, "Unknown SubTLV", EXPFILL }}, { &ei_isis_lsp_authentication, { "isis.lsp.authentication.unknown", PI_PROTOCOL, PI_WARN, "Unknown authentication type", EXPFILL }}, { &ei_isis_lsp_short_clv, { "isis.lsp.short_clv", PI_MALFORMED, PI_ERROR, "Short CLV", EXPFILL }}, { &ei_isis_lsp_long_clv, { "isis.lsp.long_clv", PI_MALFORMED, PI_ERROR, "Long CLV", EXPFILL }}, { &ei_isis_lsp_length_clv, { "isis.lsp.length_clv", PI_MALFORMED, PI_ERROR, "Wrong length CLV", EXPFILL }}, { &ei_isis_lsp_clv_mt, { "isis.lsp.clv_mt.malformed", PI_MALFORMED, PI_ERROR, "malformed MT-ID", EXPFILL }}, { &ei_isis_lsp_clv_unknown, { "isis.lsp.clv.unknown", PI_UNDECODED, PI_NOTE, "Unknown option", EXPFILL }}, { &ei_isis_lsp_malformed_subtlv, { "isis.lsp.subtlv.malformed", PI_MALFORMED, PI_ERROR, "malformed SubTLV", EXPFILL }}, { &ei_isis_lsp_unknown_subtlv, { "isis.lsp.subtlv.unknown", PI_UNDECODED, PI_NOTE, "Unknown SubTLV", EXPFILL }}, { &ei_isis_lsp_reserved_not_zero, { "isis.lsp.reserved_not_zero", PI_PROTOCOL, PI_WARN, "Reserve bit not 0", EXPFILL }}, { &ei_isis_lsp_length_invalid, { "isis.lsp.length.invalid", PI_PROTOCOL, PI_WARN, "Invalid length", EXPFILL }}, }; expert_module_t* expert_isis_lsp; /* Register the protocol name and description */ proto_isis_lsp = proto_register_protocol(PROTO_STRING_LSP, "ISIS LSP", "isis.lsp"); proto_register_field_array(proto_isis_lsp, hf, array_length(hf)); proto_register_subtree_array(ett, array_length(ett)); expert_isis_lsp = expert_register_protocol(proto_isis_lsp); expert_register_field_array(expert_isis_lsp, ei, array_length(ei)); } void proto_reg_handoff_isis_lsp(void) { dissector_add_uint("isis.type", ISIS_TYPE_L1_LSP, create_dissector_handle(dissect_isis_l1_lsp, proto_isis_lsp)); dissector_add_uint("isis.type", ISIS_TYPE_L2_LSP, create_dissector_handle(dissect_isis_l2_lsp, proto_isis_lsp)); } /* * Editor modelines - https://www.wireshark.org/tools/modelines.html * * Local variables: * c-basic-offset: 4 * tab-width: 8 * indent-tabs-mode: nil * End: * * vi: set shiftwidth=4 tabstop=8 expandtab: * :indentSize=4:tabSize=8:noTabs=true: */