/* packet-nlsp.c * Routines for NetWare Link Services Protocol * * Based on ISIS dissector by Stuart Stanley * * Wireshark - Network traffic analyzer * By Gerald Combs * Copyright 1998 Gerald Combs * * SPDX-License-Identifier: GPL-2.0-or-later */ #include "config.h" #include #include #include #include #include #include #include "packet-ipx.h" void proto_register_nlsp(void); void proto_reg_handoff_nlsp(void); static dissector_handle_t nlsp_handle; /* NLSP base header */ static int proto_nlsp; static int hf_nlsp_irpd; static int hf_nlsp_header_length; static int hf_nlsp_minor_version; static int hf_nlsp_nr; static int hf_nlsp_type; static int hf_nlsp_major_version; static int hf_nlsp_packet_length; static int hf_nlsp_hello_state; static int hf_nlsp_hello_multicast; static int hf_nlsp_hello_circuit_type; static int hf_nlsp_hello_holding_timer; static int hf_nlsp_hello_priority; static int hf_nlsp_lsp_sequence_number; static int hf_nlsp_lsp_checksum; static int hf_nlsp_lsp_p; static int hf_nlsp_lsp_attached_flag; static int hf_nlsp_lsp_lspdbol; static int hf_nlsp_lsp_router_type; static int hf_nlsp_lsp_link_info_clv_flags_cost_present; static int hf_nlsp_lsp_link_info_clv_flags_cost_metric; static int hf_nlsp_lsp_link_info_clv_flags_cost; /* Generated from convert_proto_tree_add_text.pl */ static int hf_nlsp_psnp_lsp_checksum; static int hf_nlsp_csnp_start_lsp_id_source_id; static int hf_nlsp_svcs_info_node_number; static int hf_nlsp_ext_routes_rip_delay; static int hf_nlsp_psnp_source_id_system_id; static int hf_nlsp_svcs_info_socket; static int hf_nlsp_hello_sending_router_system_id; static int hf_nlsp_csnp_start_lsp_id_lsp_number; static int hf_nlsp_lsp_id_system_id; static int hf_nlsp_psnp_lsp_id_pseudonode_id; static int hf_nlsp_csnp_end_lsp_id_lsp_number; static int hf_nlsp_remaining_lifetime; static int hf_nlsp_csnp_remaining_lifetime; static int hf_nlsp_psnp_lsp_id_source_id; static int hf_nlsp_ext_routes_hops; static int hf_nlsp_hello_local_mtu_mtu_size; static int hf_nlsp_link_info_throughput; static int hf_nlsp_link_info_media_type; static int hf_nlsp_mgt_info_name; static int hf_nlsp_mgt_info_node_number; static int hf_nlsp_csnp_end_lsp_id_source_id; static int hf_nlsp_csnp_lsp_id_pseudonode_id; static int hf_nlsp_psnp_lsp_sequence_number; static int hf_nlsp_link_info_mtu_size; static int hf_nlsp_lsp_id_lsp_number; static int hf_nlsp_unknown_code; static int hf_nlsp_mgt_info_ipx_version_number; static int hf_nlsp_link_info_router_pseudonode_id; static int hf_nlsp_psnp_source_id_pseudonode_id; static int hf_nlsp_csnp_lsp_id_lsp_number; static int hf_nlsp_csnp_source_id_pseudonode_id; static int hf_nlsp_csnp_end_lsp_id_pseudonode_id; static int hf_nlsp_csnp_lsp_sequence_number; static int hf_nlsp_link_info_router_system_id; static int hf_nlsp_svcs_info_type; static int hf_nlsp_csnp_lsp_checksum; static int hf_nlsp_hello_local_wan_circuit_id; static int hf_nlsp_svcs_info_service_name; static int hf_nlsp_mgt_info_name_length; static int hf_nlsp_neighbor; static int hf_nlsp_area_address_network_number; static int hf_nlsp_link_info_delay; static int hf_nlsp_csnp_start_lsp_id_pseudonode_id; static int hf_nlsp_svcs_info_network_number; static int hf_nlsp_csnp_source_id_system_id; static int hf_nlsp_mgt_info_network_number; static int hf_nlsp_hello_designated_router_pseudonode_id; static int hf_nlsp_lsp_id_pseudonode_id; static int hf_nlsp_csnp_lsp_id_source_id; static int hf_nlsp_psnp_remaining_lifetime; static int hf_nlsp_area_address_mask; static int hf_nlsp_hello_designated_router_system_id; static int hf_nlsp_svcs_info_hops_to_reach_the_service; static int hf_nlsp_psnp_lsp_id_lsp_number; static int hf_nlsp_ext_routes_network_number; static expert_field ei_nlsp_short_packet; static expert_field ei_nlsp_long_packet; static expert_field ei_nlsp_major_version; static expert_field ei_nlsp_type; static int ett_nlsp; static int ett_nlsp_hello_clv_area_addr; static int ett_nlsp_hello_clv_neighbors; static int ett_nlsp_hello_local_mtu; static int ett_nlsp_hello_clv_unknown; static int ett_nlsp_lsp_info; static int ett_nlsp_lsp_clv_area_addr; static int ett_nlsp_lsp_clv_mgt_info; static int ett_nlsp_lsp_clv_link_info; static int ett_nlsp_lsp_clv_svcs_info; static int ett_nlsp_lsp_clv_ext_routes; static int ett_nlsp_lsp_clv_unknown; static int ett_nlsp_csnp_lsp_entries; static int ett_nlsp_csnp_lsp_entry; static int ett_nlsp_csnp_clv_unknown; static int ett_nlsp_psnp_lsp_entries; static int ett_nlsp_psnp_lsp_entry; static int ett_nlsp_psnp_clv_unknown; #define PACKET_TYPE_MASK 0x1f /* * See * * http://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/nlsp.htm * * for some information about Hello packets. */ #define NLSP_TYPE_L1_HELLO 15 #define NLSP_TYPE_WAN_HELLO 17 #define NLSP_TYPE_L1_LSP 18 #define NLSP_TYPE_L1_CSNP 24 #define NLSP_TYPE_L1_PSNP 26 static const value_string nlsp_packet_type_vals[] = { { NLSP_TYPE_L1_HELLO, "L1 Hello"}, { NLSP_TYPE_WAN_HELLO, "WAN Hello"}, { NLSP_TYPE_L1_LSP, "L1 LSP"}, { NLSP_TYPE_L1_CSNP, "L1 CSNP"}, { NLSP_TYPE_L1_PSNP, "L1 PSNP"}, { 0, NULL} }; static const value_string nlsp_attached_flag_vals[] = { { 0, "Other routing areas cannot be reached through this router"}, { 1, "Other routing areas can be reached through this router"}, { 0, NULL} }; static const value_string nlsp_router_type_vals[] = { { 1, "Level 1 Router"}, { 3, "Level 1 and Level 2 Router"}, { 0, NULL} }; static const true_false_string tfs_internal_external = { "Internal", "External" }; /* * Our sub-packet dismantle structure for CLV's */ typedef struct { int optcode; /* code for option */ const char *tree_text; /* text for fold out */ int *tree_id; /* id for add_item */ void (*dissect)(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset, int length); } nlsp_clv_handle_t; /* * Name: nlsp_dissect_clvs() * * Description: * Dispatch routine to shred all the CLVs in a packet. We just * walk through the clv entries in the packet. For each one, we * search the passed in valid clv's for this protocol (opts) for * a matching code. If found, we add to the display tree and * then call the dissector. If it is not, we just post an * "unknown" clv entry using the passed in unknown clv tree id. * XXX: The "unknown tree id" is an 'ett' index for use * when creating a subtree; * Since the 'unknown' subtree was not actually used in the * code below, what was the intention for this ? * For now: code related to creating an 'unknown' subtrree * disabled. * * 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. * nlsp_clv_handle_t * : NULL dissector terminated array of codes * and handlers (along with tree text and tree id's). * int : length of CLV area. * int : unknown clv tree id * * Output: * void, but we will add to proto tree if !NULL. */ static void nlsp_dissect_clvs(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset, const nlsp_clv_handle_t *opts, int len, int unknown_tree_id _U_) { uint8_t code; uint8_t length; int q; proto_tree *clv_tree; while ( len > 0 ) { code = tvb_get_uint8(tvb, offset); offset += 1; len -= 1; if (len == 0) break; length = tvb_get_uint8(tvb, offset); offset += 1; len -= 1; if (len == 0) break; if ( len < length ) { proto_tree_add_expert_format(tree, pinfo, &ei_nlsp_short_packet, tvb, offset, -1, "Short CLV header (%d vs %d)", length, len ); return; } q = 0; while ((opts[q].dissect != NULL )&&( opts[q].optcode != code )){ q++; } if ( opts[q].dissect ) { /* adjust by 2 for code/len octets */ clv_tree = proto_tree_add_subtree_format(tree, tvb, offset - 2, length + 2, *opts[q].tree_id, NULL, "%s (%u)", opts[q].tree_text, length ); opts[q].dissect(tvb, pinfo, clv_tree, offset, length); } else { proto_item* ti; ti = proto_tree_add_uint_format_value(tree, hf_nlsp_unknown_code, tvb, offset - 2, 1, code, "%u (%u)", code, length); proto_item_set_len(ti, length + 2); } offset += length; len -= length; } } /* * Name: dissect_area_address_clv() * * Description: * Decode an area address clv. * * 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 clv we are decoding * * Output: * void, but we will add to proto tree if !NULL. */ static void dissect_area_address_clv(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset, int length) { while (length > 0) { if (length < 4) { proto_tree_add_expert_format(tree, pinfo, &ei_nlsp_short_packet, tvb, offset, -1, "Short area address entry"); return; } proto_tree_add_item(tree, hf_nlsp_area_address_network_number, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; length -= 4; if (length < 4) { proto_tree_add_expert_format(tree, pinfo, &ei_nlsp_short_packet, tvb, offset, -1, "Short area address entry"); return; } proto_tree_add_item(tree, hf_nlsp_area_address_mask, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; length -= 4; } } /* * Name: dissect_neighbor_clv() * * Description: * Decode an neighbor clv. * * 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 clv we are decoding * * Output: * void, but we will add to proto tree if !NULL. */ static void dissect_neighbor_clv(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset, int length) { while (length > 0) { if (length < 6) { proto_tree_add_expert_format(tree, pinfo, &ei_nlsp_short_packet, tvb, offset, -1, "Short neighbor entry"); return; } proto_tree_add_item(tree, hf_nlsp_neighbor, tvb, offset, 6, ENC_NA); offset += 6; length -= 6; } } /* * Name: dissect_hello_local_mtu_clv() * * Description: * Decode for a hello packet's local MTU clv. * * 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 clv we are decoding * * Output: * void, but we will add to proto tree if !NULL. */ static void dissect_hello_local_mtu_clv(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset, int length) { if (length < 4) { proto_tree_add_expert_format(tree, pinfo, &ei_nlsp_short_packet, tvb, offset, -1, "Short link info entry"); return; } proto_tree_add_item(tree, hf_nlsp_hello_local_mtu_mtu_size, tvb, offset, 4, ENC_BIG_ENDIAN); } static const nlsp_clv_handle_t clv_hello_opts[] = { { 0xC0, "Area address(es)", &ett_nlsp_hello_clv_area_addr, dissect_area_address_clv }, { 6, "Neighbors", &ett_nlsp_hello_clv_neighbors, dissect_neighbor_clv }, { 0xC5, "Local MTU", &ett_nlsp_hello_local_mtu, dissect_hello_local_mtu_clv }, { 0, "", NULL, NULL } }; /* * Name: nlsp_dissect_nlsp_hello() * * Description: * This procedure rips apart NLSP hellos. * * 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 : hello type, a la NLSP_TYPE_* values * int : header length of packet. * * Output: * void, will modify proto_tree if not NULL. */ #define NLSP_HELLO_CTYPE_MASK 0x03 #define NLSP_HELLO_STATE_MASK 0xC0 #define NLSP_HELLO_MULTICAST_MASK 0x10 static const value_string nlsp_hello_state_vals[] = { { 0, "Up" }, { 1, "Initializing" }, { 2, "Down" }, { 0, NULL } }; #define NLSP_HELLO_TYPE_RESERVED 0 #define NLSP_HELLO_TYPE_LEVEL_1 1 #define NLSP_HELLO_TYPE_LEVEL_2 2 #define NLSP_HELLO_TYPE_LEVEL_12 3 static const value_string nlsp_hello_circuit_type_vals[] = { { NLSP_HELLO_TYPE_RESERVED, "Reserved 0 (discard PDU)"}, { NLSP_HELLO_TYPE_LEVEL_1, "Level 1 only"}, { NLSP_HELLO_TYPE_LEVEL_2, "Level 2 only"}, { NLSP_HELLO_TYPE_LEVEL_12, "Level 1 and 2"}, { 0, NULL} }; #define NLSP_HELLO_PRIORITY_MASK 0x7f static void nlsp_dissect_nlsp_hello(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, int hello_type, int header_length) { uint16_t packet_length; int len; if (hello_type == NLSP_TYPE_WAN_HELLO) { proto_tree_add_item(tree, hf_nlsp_hello_state, tvb, offset, 1, ENC_BIG_ENDIAN); } else { proto_tree_add_item(tree, hf_nlsp_hello_multicast, tvb, offset, 1, ENC_BIG_ENDIAN); } proto_tree_add_item(tree, hf_nlsp_hello_circuit_type, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; proto_tree_add_item(tree, hf_nlsp_hello_sending_router_system_id, tvb, offset, 6, ENC_NA); col_append_fstr(pinfo->cinfo, COL_INFO, ", System ID: %s", tvb_ether_to_str(pinfo->pool, tvb, offset)); offset += 6; proto_tree_add_item(tree, hf_nlsp_hello_holding_timer, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; packet_length = tvb_get_ntohs(tvb, offset); proto_tree_add_uint(tree, hf_nlsp_packet_length, tvb, offset, 2, packet_length); offset += 2; proto_tree_add_item(tree, hf_nlsp_hello_priority, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; if (hello_type == NLSP_TYPE_WAN_HELLO) { proto_tree_add_item(tree, hf_nlsp_hello_local_wan_circuit_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; } else { proto_tree_add_item(tree, hf_nlsp_hello_designated_router_system_id, tvb, offset, 6, ENC_NA); proto_tree_add_item(tree, hf_nlsp_hello_designated_router_pseudonode_id, tvb, offset+6, 1, ENC_BIG_ENDIAN); offset += 7; } len = packet_length - header_length; if (len < 0) { proto_tree_add_expert_format(tree, pinfo, &ei_nlsp_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! */ nlsp_dissect_clvs(tvb, pinfo, tree, offset, clv_hello_opts, len, ett_nlsp_hello_clv_unknown); } /* * Name: dissect_lsp_mgt_info_clv() * * Description: * Decode for a lsp packet's management information clv. * * 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 clv we are decoding * * Output: * void, but we will add to proto tree if !NULL. */ static void dissect_lsp_mgt_info_clv(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset, int length) { uint8_t name_length; if (length < 4) { proto_tree_add_expert_format(tree, pinfo, &ei_nlsp_short_packet, tvb, offset, -1, "Short management info entry"); return; } proto_tree_add_item(tree, hf_nlsp_mgt_info_network_number, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; length -= 4; if (length < 6) { proto_tree_add_expert_format(tree, pinfo, &ei_nlsp_short_packet, tvb, offset, -1, "Short management info entry"); return; } proto_tree_add_item(tree, hf_nlsp_mgt_info_node_number, tvb, offset, 6, ENC_NA); offset += 6; length -= 6; if (length < 1) { proto_tree_add_expert_format(tree, pinfo, &ei_nlsp_short_packet, tvb, offset, -1, "Short management info entry"); return; } proto_tree_add_item(tree, hf_nlsp_mgt_info_ipx_version_number, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; length -= 1; if (length < 1) { proto_tree_add_expert_format(tree, pinfo, &ei_nlsp_short_packet, tvb, offset, -1, "Short management info entry"); return; } name_length = tvb_get_uint8(tvb, offset); proto_tree_add_item(tree, hf_nlsp_mgt_info_name_length, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; length -= 1; if (name_length != 0) { if (length < name_length) { proto_tree_add_expert_format(tree, pinfo, &ei_nlsp_short_packet, tvb, offset, -1, "Short management info entry"); return; } proto_tree_add_item(tree, hf_nlsp_mgt_info_name, tvb, offset, name_length, ENC_NA|ENC_ASCII); } } /* * Name: dissect_lsp_link_info_clv() * * Description: * Decode for a lsp packet's link information clv. * * 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 clv we are decoding * * Output: * void, but we will add to proto tree if !NULL. */ static const value_string media_type_vals[] = { { 0x0000, "Generic LAN" }, { 0x8000, "Generic WAN" }, { 0x0001, "Localtalk" }, { 0x0002, "Ethernet II" }, { 0x0003, "IEEE 802.3 with IEEE 802.2 without SNAP" }, { 0x0005, "IEEE 802.3 with IPX header and no 802.2 header" }, { 0x000A, "IEEE 802.3 with IEEE 802.2 and SNAP" }, { 0x0004, "IEEE 802.5 with IEEE 802.2 without SNAP" }, { 0x000B, "IEEE 802.5 with IEEE 802.2 and SNAP" }, { 0x0006, "IEEE 802.4" }, { 0x0007, "IBM PC Network II" }, { 0x0008, "Gateway G/Net" }, { 0x0009, "Proteon ProNET" }, { 0x000C, "Racore LANPAC" }, { 0x800D, "ISDN" }, { 0x000E, "ARCnet" }, { 0x000F, "IBM PC Network II with 802.2 without SNAP" }, { 0x0010, "IBM PC Network II with 802.2 and SNAP" }, { 0x0011, "Corvus OmniNet at 4 Mbps" }, { 0x0012, "Harris Adacom" }, { 0x0013, "IP tunnel" }, { 0x8013, "IP Relay" }, { 0x0014, "FDDI with 802.2 without SNAP" }, { 0x0015, "Commtex IVDLAN" }, { 0x0016, "Dataco OSI" }, { 0x0017, "FDDI with 802.2 and SNAP" }, { 0x0018, "IBM SDLC tunnel" }, { 0x0019, "PC Office frame" }, { 0x001A, "Hypercommunications WAIDNET" }, { 0x801C, "PPP" }, { 0x801D, "Proxim RangeLAN" }, { 0x801E, "X.25" }, { 0x801F, "Frame Relay" }, { 0x0020, "Integrated Workstations BUS-NET" }, { 0x8021, "Novell SNA Links" }, { 0, NULL } }; static void dissect_lsp_link_info_clv(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset, int length) { uint8_t flags_cost; if (length < 1) { proto_tree_add_expert_format(tree, pinfo, &ei_nlsp_short_packet, tvb, offset, -1, "Short link info entry"); return; } if (tree) { flags_cost = tvb_get_uint8(tvb, offset); proto_tree_add_item(tree, hf_nlsp_lsp_link_info_clv_flags_cost_present, tvb, offset, 1, ENC_BIG_ENDIAN); if (!(flags_cost & 0x80)) { /* * 0x80 clear => cost present. */ proto_tree_add_item(tree, hf_nlsp_lsp_link_info_clv_flags_cost_metric, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_nlsp_lsp_link_info_clv_flags_cost, tvb, offset, 1, ENC_BIG_ENDIAN); } } offset += 1; length -= 1; if (length < 3) { proto_tree_add_expert_format(tree, pinfo, &ei_nlsp_short_packet, tvb, offset, -1, "Short link info entry"); return; } offset += 3; /* Reserved */ length -= 3; if (length < 7) { proto_tree_add_expert_format(tree, pinfo, &ei_nlsp_short_packet, tvb, offset, -1, "Short link info entry"); return; } proto_tree_add_item(tree, hf_nlsp_link_info_router_system_id, tvb, offset, 6, ENC_NA); proto_tree_add_item(tree, hf_nlsp_link_info_router_pseudonode_id, tvb, offset+6, 1, ENC_BIG_ENDIAN); offset += 7; length -= 7; if (length < 4) { proto_tree_add_expert_format(tree, pinfo, &ei_nlsp_short_packet, tvb, offset, -1, "Short link info entry"); return; } proto_tree_add_item(tree, hf_nlsp_link_info_mtu_size, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; length -= 4; if (length < 4) { proto_tree_add_expert_format(tree, pinfo, &ei_nlsp_short_packet, tvb, offset, -1, "Short link info entry"); return; } proto_tree_add_item(tree, hf_nlsp_link_info_delay, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; length -= 4; if (length < 4) { proto_tree_add_expert_format(tree, pinfo, &ei_nlsp_short_packet, tvb, offset, -1, "Short link info entry"); return; } proto_tree_add_item(tree, hf_nlsp_link_info_throughput, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; length -= 4; if (length < 2) { proto_tree_add_expert_format(tree, pinfo, &ei_nlsp_short_packet, tvb, offset, -1, "Short link info entry"); return; } proto_tree_add_item(tree, hf_nlsp_link_info_media_type, tvb, offset, 2, ENC_BIG_ENDIAN); } /* * Name: dissect_lsp_svcs_info_clv() * * Description: * Decode for a lsp packet's services information clv. * * 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 clv we are decoding * * Output: * void, but we will add to proto tree if !NULL. */ static void dissect_lsp_svcs_info_clv(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset, int length) { if (length < 1) { proto_tree_add_expert_format(tree, pinfo, &ei_nlsp_short_packet, tvb, offset, -1, "Short services info entry"); return; } proto_tree_add_item(tree, hf_nlsp_svcs_info_hops_to_reach_the_service, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; length -= 1; if (length < 4) { proto_tree_add_expert_format(tree, pinfo, &ei_nlsp_short_packet, tvb, offset, -1, "Short services info entry"); return; } proto_tree_add_item(tree, hf_nlsp_svcs_info_network_number, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; length -= 4; if (length < 6) { proto_tree_add_expert_format(tree, pinfo, &ei_nlsp_short_packet, tvb, offset, -1, "Short services info entry"); return; } proto_tree_add_item(tree, hf_nlsp_svcs_info_node_number, tvb, offset, 6, ENC_NA); offset += 6; length -= 6; if (length < 2) { proto_tree_add_expert_format(tree, pinfo, &ei_nlsp_short_packet, tvb, offset, -1, "Short services info entry"); return; } proto_tree_add_item(tree, hf_nlsp_svcs_info_socket, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; length -= 2; if (length < 2) { proto_tree_add_expert_format(tree, pinfo, &ei_nlsp_short_packet, tvb, offset, -1, "Short services info entry"); return; } proto_tree_add_item(tree, hf_nlsp_svcs_info_type, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; length -= 2; if (length > 0) { proto_tree_add_item(tree, hf_nlsp_svcs_info_service_name, tvb, offset, length, ENC_NA|ENC_ASCII); } } /* * Name: dissect_lsp_ext_routes_clv() * * Description: * Decode for a lsp packet's external routes clv. * * 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 clv we are decoding * * Output: * void, but we will add to proto tree if !NULL. */ static void dissect_lsp_ext_routes_clv(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset, int length) { while (length > 0) { proto_tree_add_item(tree, hf_nlsp_ext_routes_hops, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; length -= 1; if (length < 4) { proto_tree_add_expert_format(tree, pinfo, &ei_nlsp_short_packet, tvb, offset, -1, "Short external routes entry"); return; } proto_tree_add_item(tree, hf_nlsp_ext_routes_network_number, tvb, offset, 4, ENC_BIG_ENDIAN); offset += 4; length -= 4; if (length < 2) { proto_tree_add_expert_format(tree, pinfo, &ei_nlsp_short_packet, tvb, offset, -1, "Short external routes entry"); return; } proto_tree_add_item(tree, hf_nlsp_ext_routes_rip_delay, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; length -= 2; } } static const nlsp_clv_handle_t clv_l1_lsp_opts[] = { { 0xC0, "Area address(es)", &ett_nlsp_lsp_clv_area_addr, dissect_area_address_clv }, { 0xC1, "Management information", &ett_nlsp_lsp_clv_mgt_info, dissect_lsp_mgt_info_clv }, { 0xC2, "Link information", &ett_nlsp_lsp_clv_link_info, dissect_lsp_link_info_clv }, { 0xC3, "Services information", &ett_nlsp_lsp_clv_svcs_info, dissect_lsp_svcs_info_clv }, { 0xC4, "External routes", &ett_nlsp_lsp_clv_ext_routes, dissect_lsp_ext_routes_clv }, { 0, "", NULL, NULL } }; /* * Name: nlsp_dissect_nlsp_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 : header length of packet. * * Output: * void, but we will add to proto tree if !NULL. */ /* P | ATT | OVERFLOW | ROUTER TYPE FIELD description */ #define NLSP_LSP_PARTITION_MASK 0x80 #define NLSP_LSP_PARTITION_SHIFT 7 #define NLSP_LSP_PARTITION(info) (((info) & NLSP_LSP_PARTITION_MASK) >> NLSP_LSP_PARTITION_SHIFT) #define NLSP_LSP_ATT_MASK 0x78 #define NLSP_LSP_ATT_SHIFT 3 #define NLSP_LSP_ATT(info) (((info) & NLSP_LSP_ATT_MASK) >> NLSP_LSP_ATT_SHIFT) #define NLSP_LSP_OVERFLOW_MASK 0x04 #define NLSP_LSP_OVERFLOW_SHIFT 2 #define NLSP_LSP_OVERFLOW(info) (((info) & NLSP_LSP_OVERFLOW_MASK) >> NLSP_LSP_OVERFLOW_SHIFT) #define NLSP_LSP_ROUTER_TYPE_MASK 0x03 #define NLSP_LSP_ROUTER_TYPE(info) ((info) & NLSP_LSP_ROUTER_TYPE_MASK) static void nlsp_dissect_nlsp_lsp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, int header_length) { uint16_t packet_length; uint16_t remaining_lifetime; uint32_t sequence_number; int len; packet_length = tvb_get_ntohs(tvb, offset); proto_tree_add_uint(tree, hf_nlsp_packet_length, tvb, offset, 2, packet_length); offset += 2; remaining_lifetime = tvb_get_ntohs(tvb, offset); proto_tree_add_uint(tree, hf_nlsp_remaining_lifetime, tvb, offset, 2, remaining_lifetime); offset += 2; col_append_fstr(pinfo->cinfo, COL_INFO, ", LSP ID: %s", tvb_ether_to_str(pinfo->pool, tvb, offset)); proto_tree_add_item(tree, hf_nlsp_lsp_id_system_id, tvb, offset, 6, ENC_NA); offset += 6; /* XXX - append the pseudonode ID */ proto_tree_add_item(tree, hf_nlsp_lsp_id_pseudonode_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; proto_tree_add_item(tree, hf_nlsp_lsp_id_lsp_number, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; sequence_number = tvb_get_ntohl(tvb, offset); col_append_fstr(pinfo->cinfo, COL_INFO, ", Sequence: 0x%08x, Lifetime: %us", sequence_number, remaining_lifetime); proto_tree_add_uint(tree, hf_nlsp_lsp_sequence_number, tvb, offset, 4, sequence_number); offset += 4; /* XXX -> we could validate the cksum here! */ proto_tree_add_checksum(tree, tvb, offset, hf_nlsp_lsp_checksum, -1, NULL, pinfo, 0, ENC_BIG_ENDIAN, PROTO_CHECKSUM_NO_FLAGS); offset += 2; if (tree) { proto_tree_add_item(tree, hf_nlsp_lsp_p, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_nlsp_lsp_attached_flag, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_nlsp_lsp_lspdbol, tvb, offset, 1, ENC_BIG_ENDIAN); proto_tree_add_item(tree, hf_nlsp_lsp_router_type, tvb, offset, 1, ENC_BIG_ENDIAN); } offset += 1; len = packet_length - header_length; if (len < 0) { proto_tree_add_expert_format(tree, pinfo, &ei_nlsp_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! */ nlsp_dissect_clvs(tvb, pinfo, tree, offset, clv_l1_lsp_opts, len, ett_nlsp_lsp_clv_unknown); } /* * Name: dissect_snp_lsp_entries() * * Description: * All the snp packets use a common payload format. We have up * to n entries (based on length), which are made of: * 2 : remaining life time * 8 : lsp id * 4 : sequence number * 2 : checksum * * 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 payload to decode. * * Output: * void, but we will add to proto tree if !NULL. */ static void dissect_csnp_lsp_entries(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset, int length) { proto_tree *subtree; while (length > 0) { if (length < 16) { proto_tree_add_expert_format(tree, pinfo, &ei_nlsp_short_packet, tvb, offset, -1, "Short CSNP header entry"); return; } subtree = proto_tree_add_subtree_format(tree, tvb, offset, 16, ett_nlsp_csnp_lsp_entry, NULL, "LSP-ID: %s, Sequence: 0x%08x, Lifetime: %5us, Checksum: 0x%04x", tvb_ether_to_str(pinfo->pool, tvb, offset+2), /* XXX - rest of system ID */ tvb_get_ntohl(tvb, offset+10), tvb_get_ntohs(tvb, offset), tvb_get_ntohs(tvb, offset+14)); proto_tree_add_item(subtree, hf_nlsp_csnp_lsp_id_source_id, tvb, offset+2, 6, ENC_NA); proto_tree_add_item(subtree, hf_nlsp_csnp_lsp_id_pseudonode_id, tvb, offset+8, 1, ENC_BIG_ENDIAN); proto_tree_add_item(subtree, hf_nlsp_csnp_lsp_id_lsp_number, tvb, offset+9, 1, ENC_BIG_ENDIAN); proto_tree_add_item(subtree, hf_nlsp_csnp_lsp_sequence_number, tvb, offset+10, 4, ENC_BIG_ENDIAN); proto_tree_add_item(subtree, hf_nlsp_csnp_remaining_lifetime, tvb, offset, 2, ENC_BIG_ENDIAN); proto_tree_add_checksum(subtree, tvb, offset+14, hf_nlsp_csnp_lsp_checksum, -1, NULL, pinfo, 0, ENC_BIG_ENDIAN, PROTO_CHECKSUM_NO_FLAGS); length -= 16; offset += 16; } } static void dissect_psnp_lsp_entries(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset, int length) { proto_tree *subtree; while (length > 0) { if (length < 16) { proto_tree_add_expert_format(tree, pinfo, &ei_nlsp_short_packet, tvb, offset, -1, "Short PSNP header entry"); return; } subtree = proto_tree_add_subtree_format(tree, tvb, offset, 16, ett_nlsp_psnp_lsp_entry, NULL, "LSP-ID: %s, Sequence: 0x%08x, Lifetime: %5us, Checksum: 0x%04x", tvb_ether_to_str(pinfo->pool, tvb, offset+2), /* XXX - rest of system ID */ tvb_get_ntohl(tvb, offset+10), tvb_get_ntohs(tvb, offset), tvb_get_ntohs(tvb, offset+14)); proto_tree_add_item(subtree, hf_nlsp_psnp_lsp_id_source_id, tvb, offset+2, 6, ENC_NA); proto_tree_add_item(subtree, hf_nlsp_psnp_lsp_id_pseudonode_id, tvb, offset+8, 1, ENC_BIG_ENDIAN); proto_tree_add_item(subtree, hf_nlsp_psnp_lsp_id_lsp_number, tvb, offset+9, 1, ENC_BIG_ENDIAN); proto_tree_add_item(subtree, hf_nlsp_psnp_lsp_sequence_number, tvb, offset+10, 4, ENC_BIG_ENDIAN); proto_tree_add_item(subtree, hf_nlsp_psnp_remaining_lifetime, tvb, offset, 2, ENC_BIG_ENDIAN); proto_tree_add_checksum(subtree, tvb, offset+14, hf_nlsp_psnp_lsp_checksum, -1, NULL, pinfo, 0, ENC_BIG_ENDIAN, PROTO_CHECKSUM_NO_FLAGS); length -= 16; offset += 16; } } static const nlsp_clv_handle_t clv_l1_csnp_opts[] = { { 9, "LSP entries", &ett_nlsp_csnp_lsp_entries, dissect_csnp_lsp_entries }, { 0, "", NULL, NULL } }; /* * Name: nlsp_dissect_nlsp_csnp() * * Description: * Tear apart a L1 CSNP header and then call into payload dissect * to pull apart the lsp id payload. * * 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 : header length of packet. * * Output: * void, but we will add to proto tree if !NULL. */ static void nlsp_dissect_nlsp_csnp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, int header_length) { uint16_t packet_length; int len; packet_length = tvb_get_ntohs(tvb, offset); proto_tree_add_uint(tree, hf_nlsp_packet_length, tvb, offset, 2, packet_length); offset += 2; col_append_fstr(pinfo->cinfo, COL_INFO, ", Source ID: %s", tvb_ether_to_str(pinfo->pool, tvb, offset)); proto_tree_add_item(tree, hf_nlsp_csnp_source_id_system_id, tvb, offset, 6, ENC_NA); offset += 6; proto_tree_add_item(tree, hf_nlsp_csnp_source_id_pseudonode_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; col_append_fstr(pinfo->cinfo, COL_INFO, ", Start LSP ID: %s", tvb_ether_to_str(pinfo->pool, tvb, offset)); proto_tree_add_item(tree, hf_nlsp_csnp_start_lsp_id_source_id, tvb, offset, 6, ENC_NA); offset += 6; /* XXX - append the pseudonode ID */ proto_tree_add_item(tree, hf_nlsp_csnp_start_lsp_id_pseudonode_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; proto_tree_add_item(tree, hf_nlsp_csnp_start_lsp_id_lsp_number, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; col_append_fstr(pinfo->cinfo, COL_INFO, ", End LSP ID: %s", tvb_ether_to_str(pinfo->pool, tvb, offset)); proto_tree_add_item(tree, hf_nlsp_csnp_end_lsp_id_source_id, tvb, offset, 6, ENC_NA); offset += 6; /* XXX - append the pseudonode ID */ proto_tree_add_item(tree, hf_nlsp_csnp_end_lsp_id_pseudonode_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; proto_tree_add_item(tree, hf_nlsp_csnp_end_lsp_id_lsp_number, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; len = packet_length - header_length; if (len < 0) { return; } /* Call into payload dissector */ nlsp_dissect_clvs(tvb, pinfo, tree, offset, clv_l1_csnp_opts, len, ett_nlsp_csnp_clv_unknown); } static const nlsp_clv_handle_t clv_l1_psnp_opts[] = { { 9, "LSP entries", &ett_nlsp_psnp_lsp_entries, dissect_psnp_lsp_entries }, { 0, "", NULL, NULL } }; /* * Name: nlsp_dissect_nlsp_psnp() * * Description: * Tear apart a L1 PSNP header and then call into payload dissect * to pull apart the lsp id payload. * * 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 : header length of packet. * * Output: * void, but we will add to proto tree if !NULL. */ static void nlsp_dissect_nlsp_psnp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, int header_length) { uint16_t packet_length; int len; packet_length = tvb_get_ntohs(tvb, offset); proto_tree_add_uint(tree, hf_nlsp_packet_length, tvb, offset, 2, packet_length); offset += 2; col_append_fstr(pinfo->cinfo, COL_INFO, ", Source ID: %s", tvb_ether_to_str(pinfo->pool, tvb, offset)); proto_tree_add_item(tree, hf_nlsp_psnp_source_id_system_id, tvb, offset, 6, ENC_NA); offset += 6; /* XXX - add the pseudonode ID */ proto_tree_add_item(tree, hf_nlsp_psnp_source_id_pseudonode_id, tvb, offset, 1, ENC_BIG_ENDIAN); offset += 1; len = packet_length - header_length; if (len < 0) { return; } /* Call into payload dissector */ nlsp_dissect_clvs(tvb, pinfo, tree, offset, clv_l1_psnp_opts, len, ett_nlsp_psnp_clv_unknown); } /* * Name: dissect_nlsp() * * Description: * Main entry area for nlsp de-mangling. This will build the * main nlsp tree data and call the sub-protocols as needed. * * Input: * tvbuff_t * : tvbuffer for packet data * packet_info * : info for current packet * proto_tree * : tree of display data. May be NULL. * * Output: * void, but we will add to the proto_tree if it is not NULL. */ static int dissect_nlsp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_) { proto_item *ti, *type_item; proto_tree *nlsp_tree; int offset = 0; uint8_t nlsp_major_version; uint8_t nlsp_header_length; uint8_t packet_type_flags; uint8_t packet_type; col_set_str(pinfo->cinfo, COL_PROTOCOL, "NLSP"); col_clear(pinfo->cinfo, COL_INFO); ti = proto_tree_add_item(tree, proto_nlsp, tvb, 0, -1, ENC_NA); nlsp_tree = proto_item_add_subtree(ti, ett_nlsp); proto_tree_add_item(nlsp_tree, hf_nlsp_irpd, tvb, offset, 1, ENC_BIG_ENDIAN ); offset += 1; nlsp_header_length = tvb_get_uint8(tvb, 1); proto_tree_add_uint(nlsp_tree, hf_nlsp_header_length, tvb, offset, 1, nlsp_header_length ); offset += 1; proto_tree_add_item(nlsp_tree, hf_nlsp_minor_version, tvb, offset, 1, ENC_BIG_ENDIAN ); offset += 1; offset += 1; /* Reserved */ packet_type_flags = tvb_get_uint8(tvb, offset); packet_type = packet_type_flags & PACKET_TYPE_MASK; col_add_str(pinfo->cinfo, COL_INFO, val_to_str(packet_type, nlsp_packet_type_vals, "Unknown (%u)")); if (packet_type == NLSP_TYPE_L1_LSP) { proto_tree_add_boolean(nlsp_tree, hf_nlsp_nr, tvb, offset, 1, packet_type_flags ); } type_item = proto_tree_add_uint(nlsp_tree, hf_nlsp_type, tvb, offset, 1, packet_type_flags ); offset += 1; nlsp_major_version = tvb_get_uint8(tvb, offset); ti = proto_tree_add_item(nlsp_tree, hf_nlsp_major_version, tvb, offset, 1, ENC_BIG_ENDIAN ); if (nlsp_major_version != 1){ expert_add_info_format(pinfo, ti, &ei_nlsp_major_version, "Unknown NLSP version (%d vs 1)", nlsp_major_version); } offset += 1; offset += 2; /* Reserved */ switch (packet_type) { case NLSP_TYPE_L1_HELLO: case NLSP_TYPE_WAN_HELLO: nlsp_dissect_nlsp_hello(tvb, pinfo, nlsp_tree, offset, packet_type, nlsp_header_length); break; case NLSP_TYPE_L1_LSP: nlsp_dissect_nlsp_lsp(tvb, pinfo, nlsp_tree, offset, nlsp_header_length); break; case NLSP_TYPE_L1_CSNP: nlsp_dissect_nlsp_csnp(tvb, pinfo, nlsp_tree, offset, nlsp_header_length); break; case NLSP_TYPE_L1_PSNP: nlsp_dissect_nlsp_psnp(tvb, pinfo, nlsp_tree, offset, nlsp_header_length); break; default: expert_add_info(pinfo, type_item, &ei_nlsp_type); } return tvb_captured_length(tvb); } /* * Name: proto_register_nlsp() * * Description: * main register for NLSP protocol set. We register some display * formats and the protocol module variables. * * NOTE: this procedure to autolinked by the makefile process that * builds register.c * * Input: * void * * Output: * void */ void proto_register_nlsp(void) { static hf_register_info hf[] = { { &hf_nlsp_irpd, { "NetWare Link Services Protocol Discriminator", "nlsp.irpd", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_header_length, { "PDU Header Length", "nlsp.header_length", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_minor_version, { "Minor Version", "nlsp.minor_version", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_nr, { "Multi-homed Non-routing Server", "nlsp.nr", FT_BOOLEAN, 8, NULL, 0x80, NULL, HFILL } }, { &hf_nlsp_type, { "Packet Type", "nlsp.type", FT_UINT8, BASE_DEC, VALS(nlsp_packet_type_vals), PACKET_TYPE_MASK, NULL, HFILL } }, { &hf_nlsp_major_version, { "Major Version", "nlsp.major_version", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_packet_length, { "Packet Length", "nlsp.packet_length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_hello_state, { "State", "nlsp.hello.state", FT_UINT8, BASE_DEC, VALS(nlsp_hello_state_vals), NLSP_HELLO_STATE_MASK, NULL, HFILL } }, { &hf_nlsp_hello_multicast, { "Multicast Routing", "nlsp.hello.multicast", FT_BOOLEAN, 8, TFS(&tfs_supported_not_supported), NLSP_HELLO_MULTICAST_MASK, "If set, this router supports multicast routing", HFILL } }, { &hf_nlsp_hello_circuit_type, { "Circuit Type", "nlsp.hello.circuit_type", FT_UINT8, BASE_DEC, VALS(nlsp_hello_circuit_type_vals), NLSP_HELLO_CTYPE_MASK, NULL, HFILL } }, { &hf_nlsp_hello_holding_timer, { "Holding Timer", "nlsp.hello.holding_timer", FT_UINT16, BASE_DEC|BASE_UNIT_STRING, UNS(&units_seconds), 0x0, NULL, HFILL } }, { &hf_nlsp_hello_priority, { "Priority", "nlsp.hello.priority", FT_UINT8, BASE_DEC, NULL, NLSP_HELLO_PRIORITY_MASK, NULL, HFILL } }, { &hf_nlsp_lsp_sequence_number, { "Sequence Number", "nlsp.sequence_number", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_lsp_checksum, { "Checksum", "nlsp.lsp.checksum", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_lsp_p, { "Partition Repair", "nlsp.lsp.partition_repair", FT_BOOLEAN, 8, TFS(&tfs_supported_not_supported), NLSP_LSP_PARTITION_MASK, "If set, this router supports the optional Partition Repair function", HFILL } }, { &hf_nlsp_lsp_attached_flag, { "Attached Flag", "nlsp.lsp.attached_flag", FT_UINT8, BASE_DEC, VALS(nlsp_attached_flag_vals), NLSP_LSP_ATT_MASK, NULL, HFILL } }, { &hf_nlsp_lsp_lspdbol, { "LSP Database Overloaded", "nlsp.lsp.lspdbol", FT_BOOLEAN, 8, NULL, NLSP_LSP_OVERFLOW_MASK, NULL, HFILL } }, { &hf_nlsp_lsp_router_type, { "Router Type", "nlsp.lsp.router_type", FT_UINT8, BASE_DEC, VALS(nlsp_router_type_vals), NLSP_LSP_ROUTER_TYPE_MASK, NULL, HFILL } }, { &hf_nlsp_lsp_link_info_clv_flags_cost_present, { "Cost present", "nlsp.lsp.link_info_clv.flags.cost_present", FT_BOOLEAN, 8, TFS(&tfs_no_yes), 0x80, NULL, HFILL } }, { &hf_nlsp_lsp_link_info_clv_flags_cost_metric, { "Cost metric", "nlsp.lsp.link_info_clv.flags.cost_metric", FT_BOOLEAN, 8, TFS(&tfs_internal_external), 0x40, NULL, HFILL } }, { &hf_nlsp_lsp_link_info_clv_flags_cost, { "Cost", "nlsp.lsp.link_info_clv.flags.cost", FT_UINT8, BASE_DEC, NULL, 0x3F, NULL, HFILL } }, /* Generated from convert_proto_tree_add_text.pl */ { &hf_nlsp_unknown_code, { "Unknown code", "nlsp.unknown_code", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_area_address_network_number, { "Area address network number", "nlsp.area_address.network_number", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_area_address_mask, { "Area address mask", "nlsp.area_address.mask", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_neighbor, { "Neighbor", "nlsp.neighbor", FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_hello_local_mtu_mtu_size, { "MTU Size", "nlsp.hello_local_mtu.mtu_size", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_hello_sending_router_system_id, { "Sending Router System ID", "nlsp.hello.sending_router_system_id", FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_hello_local_wan_circuit_id, { "Local WAN Circuit ID", "nlsp.hello.local_wan_circuit_id", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_hello_designated_router_system_id, { "Designated Router System ID", "nlsp.hello.designated_router_system_id", FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_hello_designated_router_pseudonode_id, { "Designated Router Pseudonode ID", "nlsp.hello.designated_router_pseudonode_id", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_mgt_info_network_number, { "Network number", "nlsp.mgt_info.network_number", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_mgt_info_node_number, { "Node number", "nlsp.mgt_info.node_number", FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_mgt_info_ipx_version_number, { "IPX version number", "nlsp.mgt_info.ipx_version_number", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_mgt_info_name_length, { "Name length", "nlsp.mgt_info.name_length", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_mgt_info_name, { "Name", "nlsp.mgt_info.name", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_link_info_router_system_id, { "Router System ID", "nlsp.link_info.router_system_id", FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_link_info_router_pseudonode_id, { "Router Pseudonode ID", "nlsp.link_info.router_pseudonode_id", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_link_info_mtu_size, { "MTU Size", "nlsp.link_info.mtu_size", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_link_info_delay, { "Delay", "nlsp.link_info.delay", FT_UINT32, BASE_DEC|BASE_UNIT_STRING, UNS(&units_microseconds), 0x0, NULL, HFILL } }, { &hf_nlsp_link_info_throughput, { "Throughput", "nlsp.link_info.throughput", FT_UINT32, BASE_DEC|BASE_UNIT_STRING, UNS(&units_bit_sec), 0x0, NULL, HFILL } }, { &hf_nlsp_link_info_media_type, { "Media type", "nlsp.link_info.media_type", FT_UINT16, BASE_DEC, VALS(media_type_vals), 0x0, NULL, HFILL } }, { &hf_nlsp_svcs_info_hops_to_reach_the_service, { "Hops to reach the service", "nlsp.svcs_info.hops_to_reach_the_service", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_svcs_info_network_number, { "Network number", "nlsp.svcs_info.network_number", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_svcs_info_node_number, { "Node number", "nlsp.svcs_info.node_number", FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_svcs_info_socket, { "Socket", "nlsp.svcs_info.socket", FT_UINT16, BASE_DEC|BASE_EXT_STRING, &ipx_socket_vals_ext, 0x0, NULL, HFILL } }, { &hf_nlsp_svcs_info_type, { "Type", "nlsp.svcs_info.type", FT_UINT16, BASE_DEC|BASE_EXT_STRING, &novell_server_vals_ext, 0x0, NULL, HFILL } }, { &hf_nlsp_svcs_info_service_name, { "Service Name", "nlsp.svcs_info.service_name", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_ext_routes_hops, { "Hops", "nlsp.ext_routes.hops", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_ext_routes_network_number, { "Network number", "nlsp.ext_routes.network_number", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_ext_routes_rip_delay, { "RIP delay", "nlsp.ext_routes.rip_delay", FT_UINT16, BASE_DEC|BASE_UNIT_STRING, UNS(&units_tick_ticks), 0x0, NULL, HFILL } }, { &hf_nlsp_remaining_lifetime, { "Remaining Lifetime", "nlsp.remaining_lifetime", FT_UINT16, BASE_DEC|BASE_UNIT_STRING, UNS(&units_seconds), 0x0, NULL, HFILL } }, { &hf_nlsp_lsp_id_system_id, { "LSP ID system ID", "nlsp.lsp_id_system_id", FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_lsp_id_pseudonode_id, { "LSP ID pseudonode ID", "nlsp.lsp_id_pseudonode_id", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_lsp_id_lsp_number, { "LSP ID LSP number", "nlsp.lsp_id_lsp_number", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_csnp_lsp_id_source_id, { "LSP ID source ID", "nlsp.csnp.lsp_id_source_id", FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_csnp_lsp_id_pseudonode_id, { "LSP ID pseudonode ID", "nlsp.csnp.lsp_id_pseudonode_id", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_csnp_lsp_id_lsp_number, { "LSP ID LSP number", "nlsp.csnp.lsp_id_lsp_number", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_csnp_lsp_sequence_number, { "LSP Sequence Number", "nlsp.csnp.lsp_sequence_number", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_csnp_remaining_lifetime, { "Remaining Lifetime", "nlsp.csnp.remaining_lifetime", FT_UINT16, BASE_DEC|BASE_UNIT_STRING, UNS(&units_seconds), 0x0, NULL, HFILL } }, { &hf_nlsp_csnp_lsp_checksum, { "LSP checksum", "nlsp.csnp.lsp_checksum", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_psnp_lsp_id_source_id, { "LSP ID source ID", "nlsp.psnp.lsp_id_source_id", FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_psnp_lsp_id_pseudonode_id, { "LSP ID pseudonode ID", "nlsp.psnp.lsp_id_pseudonode_id", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_psnp_lsp_id_lsp_number, { "LSP ID LSP number", "nlsp.psnp.lsp_id_lsp_number", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_psnp_lsp_sequence_number, { "LSP Sequence Number", "nlsp.psnp.lsp_sequence_number", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_psnp_remaining_lifetime, { "Remaining Lifetime", "nlsp.psnp.remaining_lifetime", FT_UINT16, BASE_DEC|BASE_UNIT_STRING, UNS(&units_seconds), 0x0, NULL, HFILL } }, { &hf_nlsp_psnp_lsp_checksum, { "LSP checksum", "nlsp.psnp.lsp_checksum", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_csnp_source_id_system_id, { "Source ID system ID", "nlsp.csnp.source_id_system_id", FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_csnp_source_id_pseudonode_id, { "Source ID pseudonode ID", "nlsp.csnp.source_id_pseudonode_id", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_csnp_start_lsp_id_source_id, { "Start LSP ID source ID", "nlsp.csnp.start_lsp_id_source_id", FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_csnp_start_lsp_id_pseudonode_id, { "Start LSP ID pseudonode ID", "nlsp.csnp.start_lsp_id_pseudonode_id", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_csnp_start_lsp_id_lsp_number, { "Start LSP ID LSP number", "nlsp.csnp.start_lsp_id_lsp_number", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_csnp_end_lsp_id_source_id, { "End LSP ID source ID", "nlsp.csnp.end_lsp_id_source_id", FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_csnp_end_lsp_id_pseudonode_id, { "End LSP ID pseudonode ID", "nlsp.csnp.end_lsp_id_pseudonode_id", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_csnp_end_lsp_id_lsp_number, { "End LSP ID LSP number", "nlsp.csnp.end_lsp_id_lsp_number", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_psnp_source_id_system_id, { "Source ID system ID", "nlsp.psnp.source_id_system_id", FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_nlsp_psnp_source_id_pseudonode_id, { "Source ID pseudonode ID", "nlsp.psnp.source_id_pseudonode_id", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, }; static int *ett[] = { &ett_nlsp, &ett_nlsp_hello_clv_area_addr, &ett_nlsp_hello_clv_neighbors, &ett_nlsp_hello_local_mtu, &ett_nlsp_hello_clv_unknown, &ett_nlsp_lsp_info, &ett_nlsp_lsp_clv_area_addr, &ett_nlsp_lsp_clv_mgt_info, &ett_nlsp_lsp_clv_link_info, &ett_nlsp_lsp_clv_svcs_info, &ett_nlsp_lsp_clv_ext_routes, &ett_nlsp_lsp_clv_unknown, &ett_nlsp_csnp_lsp_entries, &ett_nlsp_csnp_lsp_entry, &ett_nlsp_csnp_clv_unknown, &ett_nlsp_psnp_lsp_entries, &ett_nlsp_psnp_lsp_entry, &ett_nlsp_psnp_clv_unknown, }; static ei_register_info ei[] = { { &ei_nlsp_short_packet, { "nlsp.short_packet", PI_MALFORMED, PI_ERROR, "Short packet", EXPFILL }}, { &ei_nlsp_long_packet, { "nlsp.long_packet", PI_MALFORMED, PI_ERROR, "Long packet", EXPFILL }}, { &ei_nlsp_major_version, { "nlsp.major_version.unknown", PI_PROTOCOL, PI_WARN, "Unknown NLSP version", EXPFILL }}, { &ei_nlsp_type, { "nlsp.type.unknown", PI_PROTOCOL, PI_WARN, "Unknown NLSP packet type", EXPFILL }}, }; expert_module_t* expert_nlsp; proto_nlsp = proto_register_protocol("NetWare Link Services Protocol", "NLSP", "nlsp"); proto_register_field_array(proto_nlsp, hf, array_length(hf)); proto_register_subtree_array(ett, array_length(ett)); expert_nlsp = expert_register_protocol(proto_nlsp); expert_register_field_array(expert_nlsp, ei, array_length(ei)); nlsp_handle = register_dissector("nlsp", dissect_nlsp, proto_nlsp); } void proto_reg_handoff_nlsp(void) { dissector_add_uint("ipx.socket", IPX_SOCKET_NLSP, nlsp_handle); } /* * Editor modelines - https://www.wireshark.org/tools/modelines.html * * Local variables: * c-basic-offset: 8 * tab-width: 8 * indent-tabs-mode: t * End: * * vi: set shiftwidth=8 tabstop=8 noexpandtab: * :indentSize=8:tabSize=8:noTabs=false: */