/* 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 * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ /* * 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 */ #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 TRILL_VERSION 13 #define VLAN_GROUP 14 #define SEGMENT_ROUTING_ALG 19 /*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_LAB 1 #define ISIS_LSP_SL_SUB_ERO_MET 2 #define ISIS_LSP_SL_SUB_IPV4_ERO 3 #define ISIS_LSP_SL_SUB_IPV6_ERO 4 #define ISIS_LSP_SL_SUB_UN_IF 5 #define ISIS_LSP_SL_SUB_IPV4_B_ERO 6 #define ISIS_LSP_SL_SUB_IPV6_B_ERO 7 #define ISIS_LSP_SL_SUB_B_UN_IF 8 #define ISIS_TLV_SL_SUB_TLV_L_BIT 0x80 /* ERO sub-tlv L flag */ /* Segment Routing Sub-TLV */ #define ISIS_SR_SID_LABEL 1 /* Segment routing Algorithm */ #define ISIS_SR_ALG_SPF 0 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 } } ; static const true_false_string tfs_isis_tlv_sl_sub_tlv_f = { "Loose", "Strict" }; 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_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_metric = -1; static int hf_isis_lsp_sl_sub_tlv_ero_flag = -1; static int hf_isis_lsp_sl_sub_tlv_ero_ipv4 = -1; static int hf_isis_lsp_sl_sub_tlv_ero_ipv6 = -1; static int hf_isis_lsp_sl_sub_tlv_router_id32 = -1; static int hf_isis_lsp_sl_sub_tlv_router_id128 = -1; static int hf_isis_lsp_sl_sub_tlv_inter_id = -1; static int hf_isis_lsp_sl_sub_tlv_backup_ero_ipv4 = -1; static int hf_isis_lsp_sl_sub_tlv_backup_ero_ipv6 = -1; static int hf_isis_lsp_sl_sub_tlv_backup_router_id32 = -1; static int hf_isis_lsp_sl_sub_tlv_backup_router_id128 = -1; static int hf_isis_lsp_sl_sub_tlv_backup_inter_id = -1; /* Generated from convert_proto_tree_add_text.pl */ 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_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_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_distribution = -1; static int hf_isis_lsp_ipv6_reachability_distribution_internal = -1; static int hf_isis_lsp_ipv6_reachability_metric = -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_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_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 = -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 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 = -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_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_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_originating_buff_size = -1; /* CLV 14 */ static gint ett_isis_lsp_sl_flags = -1; static gint ett_isis_lsp_sl_sub_tlv = -1; static expert_field ie_isis_lsp_checksum_bad = EI_INIT; static expert_field ei_isis_lsp_short_packet = EI_INIT; static expert_field ei_isis_lsp_long_packet = 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_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_reserved_not_zero = 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_LAB, "SID/Label sub tlv"}, { ISIS_LSP_SL_SUB_ERO_MET, "ERO Metric sub tlv"}, { ISIS_LSP_SL_SUB_IPV4_ERO, "IPv4 ERO sub tlv"}, { ISIS_LSP_SL_SUB_IPV6_ERO, "IPv6 ERO sub tlv"}, { ISIS_LSP_SL_SUB_UN_IF, "Unumbered If sub tlv"}, { ISIS_LSP_SL_SUB_IPV4_B_ERO, "IPv4 backup sub tlv"}, { ISIS_LSP_SL_SUB_IPV6_B_ERO, "IPv6 backup sub tlv"}, { ISIS_LSP_SL_SUB_B_UN_IF, "Backup Unumbered If"}, { 0, NULL } }; static const int * 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 const int * 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 const true_false_string tfs_up_down = { "Up", "Down" }; static const true_false_string tfs_notsupported_supported = { "Not Supported", "Supported" }; static const true_false_string tfs_internal_external = { "Internal", "External" }; static const true_false_string tfs_external_internal = { "External", "Internal" }; static const true_false_string tfs_ipv6_ipv4 = { "IPv6", "IPv4" }; static const value_string isis_lsp_sr_alg_vals[] = { { ISIS_SR_ALG_SPF, "Shortest Path First (SPF)" }, { 0, NULL } }; /* http://www.iana.org/assignments/isis-tlv-codepoints/isis-tlv-codepoints.xhtml#isis-tlv-codepoints-22-23-141-222-223 http://ietfreport.isoc.org/idref/draft-ietf-isis-segment-routing-extensions/ */ 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" }, { 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" }, /* Suggested Value */ { 32, "LAN-Adj-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 } }; static const value_string isis_lsp_ext_ip_reachability_code_vals[] = { { 1, "32-bit Administrative Tag" }, { 2, "64-bit Administrative Tag" }, { 3, "Prefix-SID" }, { 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, int id_length _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_packet, 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(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(tvb, offset+4), tvb_ip_to_str(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_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, proto_tree *tree, int offset, int clv_code, int clv_len) { guint8 flags; switch (clv_code) { case 1: 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 2: 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 3: 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 ((flags & 0xC) == 0xC) { proto_tree_add_item(tree, hf_isis_lsp_sid_sli_label, tvb, offset, 3, ENC_BIG_ENDIAN); /*offset += 3;*/ } else if (!(flags & 0xC)) { proto_tree_add_item(tree, hf_isis_lsp_sid_sli_index, tvb, offset, 4, ENC_BIG_ENDIAN); /*offset +=4;*/ } 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, int id_length _U_, int length) { proto_tree *subtree = NULL; proto_tree *subclv_tree = NULL; proto_item *ti_subclvs = NULL; guint8 ctrl_info; guint bit_length; int byte_length; union { guint8 addr_bytes[4]; guint32 addr; } prefix; address prefix_addr; guint len,i; guint subclvs_len; guint clv_code, clv_len; 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.addr_bytes, bit_length); if (byte_length == -1) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_short_packet, 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, NULL, "Ext. IP Reachability"); set_address(&prefix_addr, AT_IPv4, 4, prefix.addr_bytes); 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.addr); 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_code = tvb_get_guint8(tvb, offset+len+1); /* skip the total subtlv len indicator */ clv_len = tvb_get_guint8(tvb, offset+len+2); subclv_tree = proto_tree_add_subtree(subtree, tvb, offset+len+1, 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, offset+len+1, 1, ENC_BIG_ENDIAN); proto_tree_add_item(subclv_tree, hf_isis_lsp_ext_ip_reachability_len, tvb, offset+len+2, 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, subclv_tree, offset+len+3, 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, int tree_id,int length) { gint len; gint source_num; guint16 mt_block; proto_tree *rt_tree=NULL; while (length>0) { /* fetch two bytes */ mt_block=tvb_get_ntohs(tvb, offset); /* Mask out the lower 8 bits */ switch((mt_block&0xff00)>>8) { case GRP_MAC_ADDRESS: rt_tree = proto_tree_add_subtree(tree, tvb, offset, (mt_block&0x00ff)+2, ett_isis_lsp_clv_grp_macaddr, NULL, "Group MAC Address Sub-TLV"); length--; offset++; len=tvb_get_guint8(tvb, offset);/* 1 byte fetched displays the length*/ proto_tree_add_item(rt_tree, hf_isis_lsp_grp_macaddr_length, tvb, offset, 1, ENC_BIG_ENDIAN); if(len < 5) { length -= len; offset += 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; 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; len -= 2; proto_tree_add_item(rt_tree, hf_isis_lsp_grp_macaddr_number_of_records, tvb, offset, 1, ENC_BIG_ENDIAN); length--; offset++; len--; while(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++; len--; proto_tree_add_item(rt_tree, hf_isis_lsp_grp_macaddr_group_address, tvb, offset, 6, ENC_NA); length -= 6; offset += 6; len -= 6; while((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; len -= 6; source_num--; } } break; case GRP_IPV4_ADDRESS: rt_tree = proto_tree_add_subtree(tree, tvb, offset, (mt_block&0x00ff)+2, ett_isis_lsp_clv_grp_ipv4addr, NULL, "Group IPv4 Address Sub-TLV"); length--; offset++; len=tvb_get_guint8(tvb, offset);/* 1 byte fetched displays the length*/ proto_tree_add_item(rt_tree, hf_isis_lsp_grp_ipv4addr_length, tvb, offset, 1, ENC_BIG_ENDIAN); if(len < 5) { length -= len; offset += 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; 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; len -= 2; proto_tree_add_item(rt_tree, hf_isis_lsp_grp_ipv4addr_number_of_records, tvb, offset, 1, ENC_BIG_ENDIAN); length--; offset++; len--; while(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++; len--; proto_tree_add_item(rt_tree, hf_isis_lsp_grp_ipv4addr_group_address, tvb, offset, 4, ENC_BIG_ENDIAN); length -= 4; offset += 4; len -= 4; while((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; len -= 4; source_num--; } } break; case GRP_IPV6_ADDRESS: rt_tree = proto_tree_add_subtree(tree, tvb, offset, (mt_block&0x00ff)+2, ett_isis_lsp_clv_grp_ipv6addr, NULL, "Group IPv6 Address Sub-TLV"); length--; offset++; len=tvb_get_guint8(tvb, offset);/* 1 byte fetched displays the length*/ proto_tree_add_item(rt_tree, hf_isis_lsp_grp_ipv6addr_length, tvb, offset, 1, ENC_BIG_ENDIAN); if(len < 5) { length -= len; offset += 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; 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; len -= 2; proto_tree_add_item(rt_tree, hf_isis_lsp_grp_ipv6addr_number_of_records, tvb, offset, 1, ENC_BIG_ENDIAN); length--; offset++; len--; while(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++; len--; proto_tree_add_item(rt_tree, hf_isis_lsp_grp_ipv6addr_group_address, tvb, offset, 16, ENC_NA); length -= 16; offset += 16; len -= 16; while((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; len -= 16; source_num--; } } break; default: proto_tree_add_uint_format ( tree, tree_id, tvb, offset,(mt_block&0x00ff)+2, mt_block, "Unknown Sub-TLV"); offset++; length -= (2+tvb_get_guint8(tvb, offset)); offset += (1+tvb_get_guint8(tvb, offset)); 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+6, 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+6, tlv_len, ENC_BIG_ENDIAN); break; default: proto_tree_add_expert_format(subtree, pinfo, &ei_isis_lsp_subtlv, tvb, offset+4, tlv_len+2, "SID/Label SubTlv - Bad length: Type: %d, Length: %d", ISIS_SR_SID_LABEL, tlv_len); break; } } 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; guint16 root_id; guint8 tlv_type, tlv_len; int i; 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, tlv_len); } else proto_tree_add_expert_format(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 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); 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, int id_length _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_packet, 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, int id_length _U_, int length) { proto_tree *subtree = NULL; proto_tree *subtree2 = NULL; guint8 ctrl_info; guint bit_length; int byte_length; struct e_in6_addr prefix; address prefix_addr; guint len,i; guint subclvs_len; guint clv_code, clv_len; 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_packet, 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, NULL, "IPv6 Reachability"); set_address(&prefix_addr, AT_IPv6, 16, prefix.bytes); proto_tree_add_ipv6_format_value(subtree, hf_isis_lsp_ipv6_reachability_ipv6_prefix, tvb, offset+6, byte_length, &prefix, "IPv6 prefix: %s/%u", address_to_str(wmem_packet_scope(), &prefix_addr), 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); if ((ctrl_info & 0x1f) != 0) { proto_tree_add_item(subtree, hf_isis_lsp_ipv6_reachability_reserved_bits, tvb, offset+4, 1, ENC_BIG_ENDIAN); } len = 6 + byte_length; if ((ctrl_info & 0x20) != 0) { subclvs_len = tvb_get_guint8(tvb, offset+len); subtree2 = proto_tree_add_subtree_format(subtree, tvb, offset+len, subclvs_len+1, ett_isis_lsp_clv_ip_reach_subclv, NULL, "sub-TLVs present, total length: %u bytes", subclvs_len); i =0; while (i < subclvs_len) { clv_code = tvb_get_guint8(tvb, offset+len+1); /* skip the total subtlv len indicator */ clv_len = tvb_get_guint8(tvb, offset+len+2); dissect_ipreach_subclv(tvb, subtree2, offset+len+3, 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, int id_length _U_, int length) { isis_dissect_nlpid_clv(tvb, tree, hf_isis_lsp_clv_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, int id_length _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, int id_length _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, int id_length _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, int id_length _U_, int length) { isis_dissect_te_router_id_clv(tree, pinfo, tvb, &ei_isis_lsp_short_packet, 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, int id_length _U_, int length) { isis_dissect_ip_int_clv(tree, pinfo, tvb, &ei_isis_lsp_short_packet, 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, int id_length _U_, int length) { isis_dissect_ipv6_int_clv(tree, pinfo, tvb, &ei_isis_lsp_short_packet, 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 const int *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_packet, 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_packet, 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_packet, 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_packet, 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 const int *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_packet, 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_packet, 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 const int *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_packet, 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_packet, 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, int id_length _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_packet, 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, int id_length _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 = 0; guint clv_len = 0; static const int *lsp_sl_flags[] = { &hf_isis_lsp_sl_binding_flags_f, &hf_isis_lsp_sl_binding_flags_m, 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_LAB : 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_ERO_MET : proto_tree_add_item(subtree, hf_isis_lsp_sl_sub_tlv_metric, tvb, i+2+tlv_offset, 4, ENC_BIG_ENDIAN); break; case ISIS_LSP_SL_SUB_IPV4_ERO : proto_tree_add_item(subtree, hf_isis_lsp_sl_sub_tlv_ero_flag, tvb, i+2+tlv_offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(subtree, hf_isis_lsp_sl_sub_tlv_ero_ipv4, tvb, i+3+tlv_offset, 4, ENC_NA); break; case ISIS_LSP_SL_SUB_IPV6_ERO : proto_tree_add_item(subtree, hf_isis_lsp_sl_sub_tlv_ero_flag, tvb, i+2+tlv_offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(subtree, hf_isis_lsp_sl_sub_tlv_ero_ipv6, tvb, i+3+tlv_offset, 16, ENC_NA); break; case ISIS_LSP_SL_SUB_UN_IF : switch (clv_len) { case 8 : proto_tree_add_item(subtree, hf_isis_lsp_sl_sub_tlv_router_id32, tvb, i+2+tlv_offset, 4, ENC_NA); proto_tree_add_item(subtree, hf_isis_lsp_sl_sub_tlv_inter_id, tvb, i+6+tlv_offset, 4, ENC_BIG_ENDIAN); break; case 20 : proto_tree_add_item(subtree, hf_isis_lsp_sl_sub_tlv_router_id128, tvb, i+2+tlv_offset, 16, ENC_NA); proto_tree_add_item(subtree, hf_isis_lsp_sl_sub_tlv_inter_id, tvb, i+2+16+tlv_offset, 4, ENC_BIG_ENDIAN); break; default : proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_malformed_subtlv, tvb, i+2+tlv_offset, -1, "Router ID badly formatted"); break; } break; case ISIS_LSP_SL_SUB_IPV4_B_ERO : proto_tree_add_item(subtree, hf_isis_lsp_sl_sub_tlv_ero_flag, tvb, i+2+tlv_offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(subtree, hf_isis_lsp_sl_sub_tlv_backup_ero_ipv4, tvb, i+3+tlv_offset, 4, ENC_NA); break; case ISIS_LSP_SL_SUB_IPV6_B_ERO : proto_tree_add_item(subtree, hf_isis_lsp_sl_sub_tlv_ero_flag, tvb, i+2+tlv_offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(subtree, hf_isis_lsp_sl_sub_tlv_backup_ero_ipv6, tvb, i+3+tlv_offset, 16, ENC_NA); break; case ISIS_LSP_SL_SUB_B_UN_IF : switch (clv_len) { case 8 : proto_tree_add_item(subtree, hf_isis_lsp_sl_sub_tlv_backup_router_id32, tvb, i+2+tlv_offset, 4, ENC_NA); proto_tree_add_item(subtree, hf_isis_lsp_sl_sub_tlv_backup_inter_id, tvb, i+6+tlv_offset, 4, ENC_BIG_ENDIAN); break; case 20 : proto_tree_add_item(subtree, hf_isis_lsp_sl_sub_tlv_backup_router_id128, tvb, i+2+tlv_offset, 16, ENC_NA); proto_tree_add_item(subtree, hf_isis_lsp_sl_sub_tlv_backup_inter_id, tvb, i+2+16+tlv_offset, 4, ENC_BIG_ENDIAN); break; default : proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_malformed_subtlv, tvb, i+2+tlv_offset, -1, "backup Router ID 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, int id_length _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, int id_length _U_, int length) { if ( length != 0 ) { proto_tree_add_item(tree, hf_isis_lsp_ip_authentication, tvb, offset, length, ENC_ASCII|ENC_NA); } } /* * 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, int id_length _U_, int length) { isis_dissect_area_address_clv(tree, pinfo, tvb, &ei_isis_lsp_short_packet, 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, int 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 (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(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, 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, int id_length _U_, int length) { if (length < 2) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_short_packet, 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, int id_length _U_, int length) { if (length < 2) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_short_packet, 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, int id_length _U_, int length) { if (length < 2) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_short_packet, 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, int id_length, int length) { if ( length != 2 ) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_short_packet, tvb, offset, -1, "short lsp partition DIS(%d vs %d)", length, id_length ); 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 * "id_length"-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, int id_length, int length) { if ( length < id_length ) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_short_packet, tvb, offset, -1, "short lsp partition DIS(%d vs %d)", length, id_length ); return; } /* * Gotta build a sub-tree for all our pieces */ proto_tree_add_item( tree, hf_isis_lsp_partition_designated_l2_is, tvb, offset, id_length, ENC_NA); length -= id_length; offset += id_length; if ( length > 0 ) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_long_packet, 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, int id_length _U_, int length) { char *sbuf; int mylen; if ( length < 4 ) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_short_packet, 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_packet, 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_packet, 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( 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*/ } } 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, dissect_lsp_nlpid_clv }, { ISIS_CLV_HOSTNAME, "Hostname", &ett_isis_lsp_clv_hostname, dissect_lsp_hostname_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 }, { 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, 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 }, { 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, int header_length, int id_length) { proto_item *ti; proto_tree *lsp_tree, *info_tree; guint16 pdu_length, lifetime, checksum, cacl_checksum=0; guint8 lsp_info; int len, offset_checksum; char* system_id; 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); pdu_length = tvb_get_ntohs(tvb, offset); proto_tree_add_uint(lsp_tree, hf_isis_lsp_pdu_length, tvb, offset, 2, pdu_length); offset += 2; 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; offset_checksum = offset; proto_tree_add_item(lsp_tree, hf_isis_lsp_lsp_id, tvb, offset, id_length + 2, ENC_NA); system_id = tvb_print_system_id( tvb, offset, id_length+2 ); col_append_fstr(pinfo->cinfo, COL_INFO, ", LSP-ID: %s", system_id); offset += (id_length + 2); 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 - (id_length+2+2))); offset += 4; 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, &ie_isis_lsp_checksum_bad, pinfo, 0, ENC_BIG_ENDIAN, PROTO_CHECKSUM_NOT_PRESENT); } 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, &ie_isis_lsp_checksum_bad, pinfo, cacl_checksum, ENC_BIG_ENDIAN, PROTO_CHECKSUM_VERIFY); if (cacl_checksum != checksum) { col_append_str(pinfo->cinfo, COL_INFO, " [ISIS CHECKSUM INCORRECT]"); } } else { proto_tree_add_checksum(lsp_tree, tvb, offset, hf_isis_lsp_checksum, hf_isis_lsp_checksum_status, &ie_isis_lsp_checksum_bad, pinfo, 0, ENC_BIG_ENDIAN, PROTO_CHECKSUM_NO_FLAGS); proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_long_packet, tvb, offset, -1, "Packet length %d went beyond packet", tvb_reported_length_remaining(tvb, offset_checksum)); } } offset += 2; if (tree) { static const int * 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; len = pdu_length - header_length; if (len < 0) { proto_tree_add_expert_format(tree, pinfo, &ei_isis_lsp_long_packet, tvb, offset, -1, "packet header length %d went beyond packet", header_length ); return; } /* * Now, we need to decode our CLVs. We need to pass in * our list of valid ones! */ isis_dissect_clvs(tvb, pinfo, lsp_tree, offset, opts, &ei_isis_lsp_short_packet, len, id_length, 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->header_length, isis->system_id_len); 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->header_length, isis->system_id_len); 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. */ static const true_false_string tfs_metric_supported_not_supported = { "No", "Yes" }; 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, 0xFFFFF, 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", "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", "isis.lsp.sl_binding.flags_m", FT_BOOLEAN, 8, TFS(&tfs_set_notset), 0x40, 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_UINT8, 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_metric, { "Metric", "isis.lsp.sl_sub_tlv.metric", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL} }, { &hf_isis_lsp_sl_sub_tlv_ero_flag, { "L bit", "isis.lsp.sl_sub_tlv.ero_flag_l", FT_BOOLEAN, 8, TFS(&tfs_isis_tlv_sl_sub_tlv_f), ISIS_TLV_SL_SUB_TLV_L_BIT, NULL, HFILL} }, { &hf_isis_lsp_sl_sub_tlv_ero_ipv4, { "ERO IPv4", "isis.lsp.sl_sub_tlv.ero_ipv4", FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL} }, { &hf_isis_lsp_sl_sub_tlv_ero_ipv6, { "ERO IPv6", "isis.lsp.sl_sub_tlv.ero_ipv6", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL} }, { &hf_isis_lsp_sl_sub_tlv_router_id32, { "Router ID", "isis.lsp.sl_sub_tlv.router_id32", FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL} }, { &hf_isis_lsp_sl_sub_tlv_router_id128, { "Router ID", "isis.lsp.sl_sub_tlv.router_id128", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL} }, { &hf_isis_lsp_sl_sub_tlv_inter_id, { "Interface ID", "isis.lsp.sl_sub_tlv.interface_id", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL} }, { &hf_isis_lsp_sl_sub_tlv_backup_ero_ipv4, { "Backup ERO IPv4", "isis.lsp.sl_sub_tlv.backup_ero_ipv4", FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL} }, { &hf_isis_lsp_sl_sub_tlv_backup_ero_ipv6, { "Backup ERO IPv6", "isis.lsp.sl_sub_tlv.backup_ero_ipv6", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL} }, { &hf_isis_lsp_sl_sub_tlv_backup_router_id32, { "Backup Router ID", "isis.lsp.sl_sub_tlv.backup_router_id32", FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL} }, { &hf_isis_lsp_sl_sub_tlv_backup_router_id128, { "Backup Router ID", "isis.lsp.sl_sub_tlv.backup_router_id128", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL} }, { &hf_isis_lsp_sl_sub_tlv_backup_inter_id, { "Backup Interface ID", "isis.lsp.sl_sub_tlv.backup_interface_id", FT_UINT32, 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_up_down), 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_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_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_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_up_down), 0x80, NULL, HFILL } }, { &hf_isis_lsp_ipv6_reachability_distribution_internal, { "Distribution", "isis.lsp.ipv6_reachability.distribution_internal", FT_BOOLEAN, 8, TFS(&tfs_internal_external), 0x40, 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_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 } }, { &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_notsupported_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_notsupported_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_notsupported_supported), 0x80, NULL, HFILL } }, { &hf_isis_lsp_mt_cap_spsourceid, { "SPSourceId", "isis.lsp.mt_cap.spsourceid", FT_UINT32, BASE_HEX_DEC, NULL, 0xfffff, 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_notsupported_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_notsupported_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_notsupported_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_up_down), 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_lsp_sr_alg_vals), 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", "isis.lsp.clv_nlpid", FT_BYTES, BASE_NONE|BASE_ALLOW_ZERO, 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_metric_supported_not_supported), 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_metric_supported_not_supported), 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_metric_supported_not_supported), 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_metric_supported_not_supported), 0x80, 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, &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_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_mt_reachable_IPv4_prefx, &ett_isis_lsp_clv_mt_reachable_IPv6_prefx, &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_sl_flags, &ett_isis_lsp_sl_sub_tlv }; static ei_register_info ei[] = { { &ie_isis_lsp_checksum_bad, { "isis.lsp.checksum_bad.expert", PI_CHECKSUM, PI_ERROR, "Bad checksum", EXPFILL }}, { &ei_isis_lsp_short_packet, { "isis.lsp.short_packet", PI_MALFORMED, PI_ERROR, "Short packet", EXPFILL }}, { &ei_isis_lsp_long_packet, { "isis.lsp.long_packet", PI_MALFORMED, PI_ERROR, "Long packet", 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_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_reserved_not_zero, { "isis.lsp.reserved_not_zero", PI_PROTOCOL, PI_WARN, "Reserve bit not 0", 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 - http://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: */