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Diffstat (limited to 'packet-ipxwan.c')
| -rw-r--r-- | packet-ipxwan.c | 465 |
1 files changed, 465 insertions, 0 deletions
diff --git a/packet-ipxwan.c b/packet-ipxwan.c new file mode 100644 index 0000000000..9e0ca06678 --- /dev/null +++ b/packet-ipxwan.c @@ -0,0 +1,465 @@ +/* packet-ipxwan.c + * Routines for NetWare IPX WAN Protocol + * + * $Id: packet-ipxwan.c,v 1.1 2003/04/06 02:32:38 guy Exp $ + * + * Ethereal - Network traffic analyzer + * By Gerald Combs <gerald@ethereal.com> + * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include <stdio.h> +#include <string.h> +#include <glib.h> +#include <epan/packet.h> +#include "packet-ipx.h" + +/* + * See RFC 1362 for version 1 of this protocol; see the NetWare Link + * Services Protocol Specification, chapter 3, for version 2. + */ +static int proto_ipxwan = -1; + +static int hf_ipxwan_identifier = -1; +static int hf_ipxwan_packet_type = -1; +static int hf_ipxwan_node_id = -1; +static int hf_ipxwan_sequence_number = -1; +static int hf_ipxwan_num_options = -1; +static int hf_ipxwan_option_num = -1; +static int hf_ipxwan_accept_option = -1; +static int hf_ipxwan_option_data_len = -1; +static int hf_ipxwan_routing_type = -1; +static int hf_ipxwan_wan_link_delay = -1; +static int hf_ipxwan_common_network_number = -1; +static int hf_ipxwan_router_name = -1; +static int hf_ipxwan_delay = -1; +static int hf_ipxwan_throughput = -1; +static int hf_ipxwan_request_size = -1; +static int hf_ipxwan_delta_time = -1; +static int hf_ipxwan_extended_node_id = -1; +static int hf_ipxwan_node_number = -1; +static int hf_ipxwan_compression_type = -1; + +static gint ett_ipxwan = -1; +static gint ett_ipxwan_option = -1; + +static const value_string ipxwan_packet_type_vals[] = { + { 0, "Timer Request" }, + { 1, "Timer Response" }, + { 2, "Information Request" }, + { 3, "Information Response" }, + { 4, "Throughput Request" }, + { 5, "Throughput Response" }, + { 6, "Delay Request" }, + { 7, "Delay Response" }, + { 0xFF, "NAK" }, + { 0, NULL } +}; + +#define OPT_ROUTING_TYPE 0x00 +#define OPT_RIP_SAP_INFO_EXCHANGE 0x01 +#define OPT_NLSP_INFORMATION 0x02 +#define OPT_NLSP_RAW_THROUGHPUT_DATA 0x03 +#define OPT_EXTENDED_NODE_ID 0x04 +#define OPT_NODE_NUMBER 0x05 +#define OPT_COMPRESSION 0x80 +#define OPT_PAD 0xFF + +static const value_string ipxwan_option_num_vals[] = { + { OPT_ROUTING_TYPE, "Routing Type" }, + { OPT_RIP_SAP_INFO_EXCHANGE, "RIP/SAP Info Exchange" }, + { OPT_NLSP_INFORMATION, "NLSP Information" }, + { OPT_NLSP_RAW_THROUGHPUT_DATA, "NLSP Raw Throughput Data" }, + { OPT_EXTENDED_NODE_ID, "Extended Node ID" }, + { OPT_NODE_NUMBER, "Node Number" }, + { OPT_COMPRESSION, "Compression" }, + { OPT_PAD, "Pad" }, + { 0, NULL } +}; + +static const value_string ipxwan_accept_option_vals[] = { + { 0, "No" }, + { 1, "Yes" }, + { 3, "Not Appplicable" }, + { 0, NULL } +}; + +static const value_string ipxwan_routing_type_vals[] = { + { 0, "RIP" }, + { 1, "NLSP" }, + { 2, "Unnumbered RIP" }, + { 3, "On-demand, static routing" }, + { 4, "Client-router connection" }, + { 0, NULL } +}; + +#define COMP_TYPE_TELEBIT 0 + +static const value_string ipxwan_compression_type_vals[] = { + { COMP_TYPE_TELEBIT, "Telebit" }, + { 0, NULL } +}; + +static void +dissect_ipxwan(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) +{ + proto_item *ti; + proto_tree *ipxwan_tree = NULL; + int offset = 0; + guint8 packet_type; + guint8 num_options; + guint8 option_number; + proto_tree *option_tree; + guint16 option_data_len; + guint16 wan_link_delay; + guint32 delay; + guint32 throughput; + guint32 delta_time; + guint8 compression_type; + + if (check_col(pinfo->cinfo, COL_PROTOCOL)) + col_set_str(pinfo->cinfo, COL_PROTOCOL, "IPX WAN"); + if (check_col(pinfo->cinfo, COL_INFO)) + col_clear(pinfo->cinfo, COL_INFO); + + if (tree) { + ti = proto_tree_add_item(tree, proto_ipxwan, tvb, 0, -1, + FALSE); + ipxwan_tree = proto_item_add_subtree(ti, ett_ipxwan); + } + + if (tree) { + proto_tree_add_item(ipxwan_tree, hf_ipxwan_identifier, tvb, + offset, 4, FALSE); + } + offset += 4; + packet_type = tvb_get_guint8(tvb, offset); + if (check_col(pinfo->cinfo, COL_INFO)) { + col_add_str(pinfo->cinfo, COL_INFO, + val_to_str(packet_type, ipxwan_packet_type_vals, + "Unknown packet type %u")); + } + if (tree) { + proto_tree_add_uint(ipxwan_tree, hf_ipxwan_packet_type, tvb, + offset, 1, packet_type); + offset += 1; + proto_tree_add_item(ipxwan_tree, hf_ipxwan_node_id, tvb, + offset, 4, FALSE); + offset += 4; + proto_tree_add_item(ipxwan_tree, hf_ipxwan_sequence_number, tvb, + offset, 1, FALSE); + offset += 1; + num_options = tvb_get_guint8(tvb, offset); + proto_tree_add_uint(ipxwan_tree, hf_ipxwan_num_options, tvb, + offset, 1, num_options); + offset += 1; + + while (num_options != 0) { + option_number = tvb_get_guint8(tvb, offset); + ti = proto_tree_add_text(ipxwan_tree, tvb, offset, -1, + "Option: %s", + val_to_str(option_number, ipxwan_option_num_vals, + "Unknown (%u)")); + option_tree = proto_item_add_subtree(ti, + ett_ipxwan_option); + + proto_tree_add_uint(option_tree, hf_ipxwan_option_num, + tvb, offset, 1, option_number); + offset += 1; + proto_tree_add_item(option_tree, hf_ipxwan_accept_option, + tvb, offset, 1, FALSE); + offset += 1; + option_data_len = tvb_get_ntohs(tvb, offset); + proto_tree_add_uint(option_tree, hf_ipxwan_option_data_len, + tvb, offset, 2, option_data_len); + offset += 2; + proto_item_set_len(ti, option_data_len+4); + switch (option_number) { + + case OPT_ROUTING_TYPE: + if (option_data_len != 1) { + proto_tree_add_text(option_tree, + tvb, offset, option_data_len, + "Bogus length: %u, should be 1", + option_data_len); + } else { + proto_tree_add_item(option_tree, + hf_ipxwan_routing_type, tvb, + offset, 1, FALSE); + } + break; + + case OPT_RIP_SAP_INFO_EXCHANGE: + if (option_data_len != 54) { + proto_tree_add_text(option_tree, + tvb, offset, option_data_len, + "Bogus length: %u, should be 54", + option_data_len); + } else { + wan_link_delay = tvb_get_ntohs(tvb, + offset); + proto_tree_add_uint_format(option_tree, + hf_ipxwan_wan_link_delay, tvb, + offset, 2, wan_link_delay, + "WAN Link Delay: %ums", + wan_link_delay); + proto_tree_add_item(option_tree, + hf_ipxwan_common_network_number, + tvb, offset+2, 4, FALSE); + proto_tree_add_item(option_tree, + hf_ipxwan_router_name, tvb, + offset+6, 48, FALSE); + } + break; + + case OPT_NLSP_INFORMATION: + if (option_data_len != 8) { + proto_tree_add_text(option_tree, + tvb, offset, option_data_len, + "Bogus length: %u, should be 8", + option_data_len); + } else { + delay = tvb_get_ntohl(tvb, offset); + proto_tree_add_uint_format(option_tree, + hf_ipxwan_delay, tvb, + offset, 4, delay, + "Delay: %uus", delay); + throughput = tvb_get_ntohl(tvb, offset); + proto_tree_add_uint_format(option_tree, + hf_ipxwan_throughput, tvb, + offset, 4, throughput, + "Throughput: %uus", + throughput); + } + break; + + case OPT_NLSP_RAW_THROUGHPUT_DATA: + if (option_data_len != 8) { + proto_tree_add_text(option_tree, + tvb, offset, option_data_len, + "Bogus length: %u, should be 8", + option_data_len); + } else { + proto_tree_add_item(option_tree, + hf_ipxwan_request_size, tvb, + offset, 4, FALSE); + delta_time = tvb_get_ntohl(tvb, offset); + proto_tree_add_uint_format(option_tree, + hf_ipxwan_delta_time, tvb, + offset, 4, delta_time, + "Delta Time: %uus", + delta_time); + } + break; + + case OPT_EXTENDED_NODE_ID: + if (option_data_len != 4) { + proto_tree_add_text(option_tree, + tvb, offset, option_data_len, + "Bogus length: %u, should be 4", + option_data_len); + } else { + proto_tree_add_item(option_tree, + hf_ipxwan_extended_node_id, tvb, + offset, 4, FALSE); + } + break; + + case OPT_NODE_NUMBER: + if (option_data_len != 6) { + proto_tree_add_text(option_tree, + tvb, offset, option_data_len, + "Bogus length: %u, should be 6", + option_data_len); + } else { + proto_tree_add_item(option_tree, + hf_ipxwan_node_number, tvb, + offset, 6, FALSE); + } + break; + + case OPT_COMPRESSION: + if (option_data_len < 1) { + proto_tree_add_text(option_tree, + tvb, offset, option_data_len, + "Bogus length: %u, should be >= 1", + option_data_len); + } else { + compression_type = tvb_get_guint8(tvb, + offset); + proto_tree_add_uint(option_tree, + hf_ipxwan_compression_type, tvb, + offset, 1, compression_type); + switch (compression_type) { + + case COMP_TYPE_TELEBIT: + if (option_data_len < 3) { + proto_tree_add_text(option_tree, + tvb, offset+1, + option_data_len-1, + "Bogus length: %u, should be >= 3", + option_data_len); + } else { + proto_tree_add_text( + option_tree, + tvb, offset+1, 1, + "Compression options: 0x%02x", + tvb_get_guint8(tvb, + offset+1)); + proto_tree_add_text( + option_tree, + tvb, offset+2, 1, + "Number of compression slots: %u", + tvb_get_guint8(tvb, + offset+2)); + } + break; + + default: + proto_tree_add_text(option_tree, + tvb, offset+1, + option_data_len-1, + "Option parameters"); + break; + } + } + break; + + case OPT_PAD: + proto_tree_add_text(option_tree, + tvb, offset, option_data_len, + "Padding"); + break; + + default: + proto_tree_add_text(option_tree, + tvb, offset, option_data_len, + "Option value"); + break; + } + + offset += option_data_len; + num_options--; + } + } +} + +void +proto_register_ipxwan(void) +{ + static hf_register_info hf[] = { + { &hf_ipxwan_identifier, + { "Identifier", "ipxwan.identifier", + FT_STRING, BASE_NONE, NULL, 0x0, "", HFILL }}, + + { &hf_ipxwan_packet_type, + { "Packet Type", "ipxwan.packet_type", + FT_UINT8, BASE_DEC, VALS(ipxwan_packet_type_vals), 0x0, "", + HFILL }}, + + { &hf_ipxwan_node_id, + { "Node ID", "ipxwan.node_id", FT_UINT32, + BASE_HEX, NULL, 0x0, "", HFILL }}, + + { &hf_ipxwan_sequence_number, + { "Sequence Number", "ipxwan.sequence_number", FT_UINT8, + BASE_DEC, NULL, 0x0, "", HFILL }}, + + { &hf_ipxwan_num_options, + { "Number of Options", "ipxwan.num_options", FT_UINT8, + BASE_DEC, NULL, 0x0, "", HFILL }}, + + { &hf_ipxwan_option_num, + { "Option Number", "ipxwan.option_num", FT_UINT8, + BASE_HEX, VALS(ipxwan_option_num_vals), 0x0, "", HFILL }}, + + { &hf_ipxwan_accept_option, + { "Accept Option", "ipxwan.accept_option", FT_UINT8, + BASE_DEC, VALS(ipxwan_accept_option_vals), 0x0, "", HFILL }}, + + { &hf_ipxwan_option_data_len, + { "Option Data Length", "ipxwan.option_data_len", FT_UINT16, + BASE_DEC, NULL, 0x0, "", HFILL }}, + + { &hf_ipxwan_routing_type, + { "Routing Type", "ipxwan.routing_type", FT_UINT8, + BASE_DEC, VALS(ipxwan_routing_type_vals), 0x0, "", HFILL }}, + + { &hf_ipxwan_wan_link_delay, + { "WAN Link Delay", "ipxwan.rip_sap_info_exchange.wan_link_delay", + FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL }}, + + { &hf_ipxwan_common_network_number, + { "Common Network Number", "ipxwan.rip_sap_info_exchange.common_network_number", + FT_IPXNET, BASE_NONE, NULL, 0x0, "", HFILL }}, + + { &hf_ipxwan_router_name, + { "Router Name", "ipxwan.rip_sap_info_exchange.router_name", + FT_STRING, BASE_NONE, NULL, 0x0, "", HFILL }}, + + { &hf_ipxwan_delay, + { "Delay", "ipxwan.nlsp_information.delay", + FT_UINT32, BASE_DEC, NULL, 0x0, "", HFILL }}, + + { &hf_ipxwan_throughput, + { "Throughput", "ipxwan.nlsp_information.throughput", + FT_UINT32, BASE_DEC, NULL, 0x0, "", HFILL }}, + + { &hf_ipxwan_request_size, + { "Request Size", "ipxwan.nlsp_raw_throughput_data.request_size", + FT_UINT32, BASE_DEC, NULL, 0x0, "", HFILL }}, + + { &hf_ipxwan_delta_time, + { "Delta Time", "ipxwan.nlsp_raw_throughput_data.delta_time", + FT_UINT32, BASE_DEC, NULL, 0x0, "", HFILL }}, + + { &hf_ipxwan_extended_node_id, + { "Extended Node ID", "ipxwan.extended_node_id", + FT_IPXNET, BASE_NONE, NULL, 0x0, "", HFILL }}, + + { &hf_ipxwan_node_number, + { "Node Number", "ipxwan.node_number", + FT_ETHER, BASE_NONE, NULL, 0x0, "", HFILL }}, + + { &hf_ipxwan_compression_type, + { "Compression Type", "ipxwan.compression.type", + FT_UINT8, BASE_DEC, VALS(ipxwan_compression_type_vals), 0x0, + "", HFILL }}, + }; + static gint *ett[] = { + &ett_ipxwan, + &ett_ipxwan_option, + }; + + proto_ipxwan = proto_register_protocol("IPX WAN", "IPX WAN", "ipxwan"); + proto_register_field_array(proto_ipxwan, hf, array_length(hf)); + proto_register_subtree_array(ett, array_length(ett)); +} + +void +proto_reg_handoff_ipxwan(void) +{ + dissector_handle_t ipxwan_handle; + + ipxwan_handle = create_dissector_handle(dissect_ipxwan, + proto_ipxwan); + dissector_add("ipx.socket", IPX_SOCKET_IPXWAN, ipxwan_handle); +} |