![Michael Mann](/assets/img/avatar_default.png)
Some of the ASN.1 dissectors still generate a new_create_dissector_handle from the tool itself, so leave those for now. Change-Id: Ic6e5803b1444d7ac24070949f5fd557909a5641f Reviewed-on: https://code.wireshark.org/review/12484 Petri-Dish: Anders Broman <a.broman58@gmail.com> Reviewed-by: Michael Mann <mmann78@netscape.net>
474 lines
14 KiB
C
474 lines
14 KiB
C
/* packet-ipxwan.c
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* Routines for NetWare IPX WAN Protocol
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include <epan/packet.h>
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#include <epan/expert.h>
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#include "packet-ipx.h"
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void proto_register_ipxwan(void);
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void proto_reg_handoff_ipxwan(void);
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/*
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* See RFC 1362 for version 1 of this protocol; see the NetWare Link
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* Services Protocol Specification, chapter 3, for version 2.
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*/
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static int proto_ipxwan = -1;
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static int hf_ipxwan_identifier = -1;
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static int hf_ipxwan_packet_type = -1;
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static int hf_ipxwan_node_id = -1;
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static int hf_ipxwan_sequence_number = -1;
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static int hf_ipxwan_num_options = -1;
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static int hf_ipxwan_option_num = -1;
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static int hf_ipxwan_accept_option = -1;
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static int hf_ipxwan_option_data_len = -1;
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static int hf_ipxwan_routing_type = -1;
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static int hf_ipxwan_wan_link_delay = -1;
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static int hf_ipxwan_common_network_number = -1;
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static int hf_ipxwan_router_name = -1;
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static int hf_ipxwan_delay = -1;
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static int hf_ipxwan_throughput = -1;
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static int hf_ipxwan_request_size = -1;
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static int hf_ipxwan_delta_time = -1;
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static int hf_ipxwan_extended_node_id = -1;
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static int hf_ipxwan_node_number = -1;
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static int hf_ipxwan_compression_type = -1;
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static int hf_ipxwan_compression_options = -1;
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static int hf_ipxwan_compression_slots = -1;
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static int hf_ipxwan_compression_parameters = -1;
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static int hf_ipxwan_padding = -1;
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static int hf_ipxwan_option_value = -1;
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static gint ett_ipxwan = -1;
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static gint ett_ipxwan_option = -1;
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static expert_field ei_ipxwan_option_data_len = EI_INIT;
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static const value_string ipxwan_packet_type_vals[] = {
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{ 0, "Timer Request" },
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{ 1, "Timer Response" },
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{ 2, "Information Request" },
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{ 3, "Information Response" },
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{ 4, "Throughput Request" },
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{ 5, "Throughput Response" },
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{ 6, "Delay Request" },
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{ 7, "Delay Response" },
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{ 0xFF, "NAK" },
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{ 0, NULL }
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};
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#define OPT_ROUTING_TYPE 0x00
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#define OPT_RIP_SAP_INFO_EXCHANGE 0x01
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#define OPT_NLSP_INFORMATION 0x02
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#define OPT_NLSP_RAW_THROUGHPUT_DATA 0x03
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#define OPT_EXTENDED_NODE_ID 0x04
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#define OPT_NODE_NUMBER 0x05
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#define OPT_COMPRESSION 0x80
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#define OPT_PAD 0xFF
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static const value_string ipxwan_option_num_vals[] = {
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{ OPT_ROUTING_TYPE, "Routing Type" },
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{ OPT_RIP_SAP_INFO_EXCHANGE, "RIP/SAP Info Exchange" },
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{ OPT_NLSP_INFORMATION, "NLSP Information" },
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{ OPT_NLSP_RAW_THROUGHPUT_DATA, "NLSP Raw Throughput Data" },
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{ OPT_EXTENDED_NODE_ID, "Extended Node ID" },
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{ OPT_NODE_NUMBER, "Node Number" },
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{ OPT_COMPRESSION, "Compression" },
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{ OPT_PAD, "Pad" },
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{ 0, NULL }
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};
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static const value_string ipxwan_accept_option_vals[] = {
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{ 0, "No" },
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{ 1, "Yes" },
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{ 3, "Not Applicable" },
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{ 0, NULL }
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};
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static const value_string ipxwan_routing_type_vals[] = {
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{ 0, "RIP" },
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{ 1, "NLSP" },
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{ 2, "Unnumbered RIP" },
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{ 3, "On-demand, static routing" },
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{ 4, "Client-router connection" },
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{ 0, NULL }
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};
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#define COMP_TYPE_TELEBIT 0
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static const value_string ipxwan_compression_type_vals[] = {
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{ COMP_TYPE_TELEBIT, "Telebit" },
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{ 0, NULL }
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};
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static int
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dissect_ipxwan(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
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{
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proto_item *ti;
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proto_tree *ipxwan_tree = NULL;
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int offset = 0;
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guint8 packet_type;
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guint8 num_options;
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guint8 option_number;
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proto_tree *option_tree;
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guint16 option_data_len;
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guint16 wan_link_delay;
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guint32 delay;
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guint32 throughput;
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guint32 delta_time;
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guint8 compression_type;
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "IPX WAN");
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col_clear(pinfo->cinfo, COL_INFO);
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ti = proto_tree_add_item(tree, proto_ipxwan, tvb, 0, -1,
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ENC_NA);
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ipxwan_tree = proto_item_add_subtree(ti, ett_ipxwan);
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proto_tree_add_item(ipxwan_tree, hf_ipxwan_identifier, tvb,
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offset, 4, ENC_ASCII|ENC_NA);
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offset += 4;
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packet_type = tvb_get_guint8(tvb, offset);
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col_add_str(pinfo->cinfo, COL_INFO,
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val_to_str(packet_type, ipxwan_packet_type_vals,
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"Unknown packet type %u"));
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proto_tree_add_uint(ipxwan_tree, hf_ipxwan_packet_type, tvb,
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offset, 1, packet_type);
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offset += 1;
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proto_tree_add_item(ipxwan_tree, hf_ipxwan_node_id, tvb,
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offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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proto_tree_add_item(ipxwan_tree, hf_ipxwan_sequence_number, tvb,
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offset, 1, ENC_BIG_ENDIAN);
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offset += 1;
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num_options = tvb_get_guint8(tvb, offset);
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proto_tree_add_uint(ipxwan_tree, hf_ipxwan_num_options, tvb,
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offset, 1, num_options);
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offset += 1;
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while (num_options != 0) {
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option_number = tvb_get_guint8(tvb, offset);
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option_tree = proto_tree_add_subtree_format(ipxwan_tree, tvb, offset, -1,
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ett_ipxwan_option, &ti, "Option: %s",
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val_to_str(option_number, ipxwan_option_num_vals,
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"Unknown (%u)"));
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proto_tree_add_uint(option_tree, hf_ipxwan_option_num,
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tvb, offset, 1, option_number);
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offset += 1;
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proto_tree_add_item(option_tree, hf_ipxwan_accept_option,
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tvb, offset, 1, ENC_BIG_ENDIAN);
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offset += 1;
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option_data_len = tvb_get_ntohs(tvb, offset);
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proto_tree_add_uint(option_tree, hf_ipxwan_option_data_len,
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tvb, offset, 2, option_data_len);
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offset += 2;
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proto_item_set_len(ti, option_data_len+4);
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switch (option_number) {
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case OPT_ROUTING_TYPE:
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if (option_data_len != 1) {
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expert_add_info_format(pinfo, ti, &ei_ipxwan_option_data_len,
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"Bogus length: %u, should be 1", option_data_len);
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} else {
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proto_tree_add_item(option_tree,
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hf_ipxwan_routing_type, tvb,
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offset, 1, ENC_BIG_ENDIAN);
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}
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break;
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case OPT_RIP_SAP_INFO_EXCHANGE:
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if (option_data_len != 54) {
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expert_add_info_format(pinfo, ti, &ei_ipxwan_option_data_len,
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"Bogus length: %u, should be 54", option_data_len);
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} else {
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wan_link_delay = tvb_get_ntohs(tvb,
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offset);
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proto_tree_add_uint_format_value(option_tree,
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hf_ipxwan_wan_link_delay, tvb,
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offset, 2, wan_link_delay,
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"%ums",
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wan_link_delay);
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proto_tree_add_item(option_tree,
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hf_ipxwan_common_network_number,
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tvb, offset+2, 4, ENC_NA);
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proto_tree_add_item(option_tree,
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hf_ipxwan_router_name, tvb,
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offset+6, 48, ENC_ASCII|ENC_NA);
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}
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break;
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case OPT_NLSP_INFORMATION:
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if (option_data_len != 8) {
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expert_add_info_format(pinfo, ti, &ei_ipxwan_option_data_len,
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"Bogus length: %u, should be 8", option_data_len);
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} else {
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delay = tvb_get_ntohl(tvb, offset);
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proto_tree_add_uint_format_value(option_tree,
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hf_ipxwan_delay, tvb,
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offset, 4, delay,
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"%uus", delay);
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throughput = tvb_get_ntohl(tvb, offset);
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proto_tree_add_uint_format_value(option_tree,
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hf_ipxwan_throughput, tvb,
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offset, 4, throughput,
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"%uus",
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throughput);
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}
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break;
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case OPT_NLSP_RAW_THROUGHPUT_DATA:
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if (option_data_len != 8) {
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expert_add_info_format(pinfo, ti, &ei_ipxwan_option_data_len,
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"Bogus length: %u, should be 8", option_data_len);
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} else {
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proto_tree_add_item(option_tree,
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hf_ipxwan_request_size, tvb,
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offset, 4, ENC_BIG_ENDIAN);
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delta_time = tvb_get_ntohl(tvb, offset);
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proto_tree_add_uint_format_value(option_tree,
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hf_ipxwan_delta_time, tvb,
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offset, 4, delta_time,
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"%uus",
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delta_time);
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}
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break;
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case OPT_EXTENDED_NODE_ID:
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if (option_data_len != 4) {
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expert_add_info_format(pinfo, ti, &ei_ipxwan_option_data_len,
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"Bogus length: %u, should be 4", option_data_len);
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} else {
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proto_tree_add_item(option_tree,
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hf_ipxwan_extended_node_id, tvb,
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offset, 4, ENC_NA);
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}
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break;
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case OPT_NODE_NUMBER:
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if (option_data_len != 6) {
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expert_add_info_format(pinfo, ti, &ei_ipxwan_option_data_len,
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"Bogus length: %u, should be 6", option_data_len);
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} else {
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proto_tree_add_item(option_tree,
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hf_ipxwan_node_number, tvb,
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offset, 6, ENC_NA);
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}
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break;
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case OPT_COMPRESSION:
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if (option_data_len < 1) {
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expert_add_info_format(pinfo, ti, &ei_ipxwan_option_data_len,
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"Bogus length: %u, should be >= 1", option_data_len);
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} else {
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compression_type = tvb_get_guint8(tvb,
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offset);
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ti = proto_tree_add_uint(option_tree,
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hf_ipxwan_compression_type, tvb,
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offset, 1, compression_type);
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switch (compression_type) {
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case COMP_TYPE_TELEBIT:
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if (option_data_len < 3) {
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expert_add_info_format(pinfo, ti, &ei_ipxwan_option_data_len,
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"Bogus length: %u, should be >= 3", option_data_len);
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} else {
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proto_tree_add_item(option_tree, hf_ipxwan_compression_options,
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tvb, offset+1, 1, ENC_BIG_ENDIAN);
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proto_tree_add_item(option_tree, hf_ipxwan_compression_slots,
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tvb, offset+2, 1, ENC_BIG_ENDIAN);
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}
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break;
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default:
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proto_tree_add_item(option_tree, hf_ipxwan_compression_parameters,
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tvb, offset+1, option_data_len-1, ENC_NA);
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break;
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}
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}
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break;
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case OPT_PAD:
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proto_tree_add_item(option_tree, hf_ipxwan_padding,
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tvb, offset, option_data_len, ENC_NA);
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break;
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default:
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proto_tree_add_item(option_tree, hf_ipxwan_option_value,
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tvb, offset, option_data_len, ENC_NA);
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break;
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}
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offset += option_data_len;
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num_options--;
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}
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return tvb_captured_length(tvb);
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}
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void
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proto_register_ipxwan(void)
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{
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static hf_register_info hf[] = {
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{ &hf_ipxwan_identifier,
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{ "Identifier", "ipxwan.identifier",
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FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
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{ &hf_ipxwan_packet_type,
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{ "Packet Type", "ipxwan.packet_type",
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FT_UINT8, BASE_DEC, VALS(ipxwan_packet_type_vals), 0x0, NULL,
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HFILL }},
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{ &hf_ipxwan_node_id,
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{ "Node ID", "ipxwan.node_id", FT_UINT32,
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BASE_HEX, NULL, 0x0, NULL, HFILL }},
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{ &hf_ipxwan_sequence_number,
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{ "Sequence Number", "ipxwan.sequence_number", FT_UINT8,
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BASE_DEC, NULL, 0x0, NULL, HFILL }},
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{ &hf_ipxwan_num_options,
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{ "Number of Options", "ipxwan.num_options", FT_UINT8,
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BASE_DEC, NULL, 0x0, NULL, HFILL }},
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{ &hf_ipxwan_option_num,
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{ "Option Number", "ipxwan.option_num", FT_UINT8,
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BASE_HEX, VALS(ipxwan_option_num_vals), 0x0, NULL, HFILL }},
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{ &hf_ipxwan_accept_option,
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{ "Accept Option", "ipxwan.accept_option", FT_UINT8,
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BASE_DEC, VALS(ipxwan_accept_option_vals), 0x0, NULL, HFILL }},
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{ &hf_ipxwan_option_data_len,
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{ "Option Data Length", "ipxwan.option_data_len", FT_UINT16,
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BASE_DEC, NULL, 0x0, NULL, HFILL }},
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{ &hf_ipxwan_routing_type,
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{ "Routing Type", "ipxwan.routing_type", FT_UINT8,
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BASE_DEC, VALS(ipxwan_routing_type_vals), 0x0, NULL, HFILL }},
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{ &hf_ipxwan_wan_link_delay,
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{ "WAN Link Delay", "ipxwan.rip_sap_info_exchange.wan_link_delay",
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FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
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{ &hf_ipxwan_common_network_number,
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{ "Common Network Number", "ipxwan.rip_sap_info_exchange.common_network_number",
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FT_IPXNET, BASE_NONE, NULL, 0x0, NULL, HFILL }},
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{ &hf_ipxwan_router_name,
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{ "Router Name", "ipxwan.rip_sap_info_exchange.router_name",
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FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
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{ &hf_ipxwan_delay,
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{ "Delay", "ipxwan.nlsp_information.delay",
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FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
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{ &hf_ipxwan_throughput,
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{ "Throughput", "ipxwan.nlsp_information.throughput",
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FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
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{ &hf_ipxwan_request_size,
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{ "Request Size", "ipxwan.nlsp_raw_throughput_data.request_size",
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FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
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{ &hf_ipxwan_delta_time,
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{ "Delta Time", "ipxwan.nlsp_raw_throughput_data.delta_time",
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FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
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{ &hf_ipxwan_extended_node_id,
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{ "Extended Node ID", "ipxwan.extended_node_id",
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FT_IPXNET, BASE_NONE, NULL, 0x0, NULL, HFILL }},
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{ &hf_ipxwan_node_number,
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{ "Node Number", "ipxwan.node_number",
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FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL }},
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{ &hf_ipxwan_compression_type,
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{ "Compression Type", "ipxwan.compression.type",
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FT_UINT8, BASE_DEC, VALS(ipxwan_compression_type_vals), 0x0,
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NULL, HFILL }},
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{ &hf_ipxwan_compression_options,
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{ "Compression options", "ipxwan.compression.options",
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FT_UINT8, BASE_HEX, NULL, 0x0,
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NULL, HFILL }},
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{ &hf_ipxwan_compression_slots,
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{ "Number of compression slots", "ipxwan.compression.slots",
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FT_UINT8, BASE_DEC, NULL, 0x0,
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NULL, HFILL }},
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{ &hf_ipxwan_compression_parameters,
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{ "Option parameters", "ipxwan.compression.parameters",
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FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
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{ &hf_ipxwan_padding,
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{ "Padding", "ipxwan.padding",
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FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
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{ &hf_ipxwan_option_value,
|
|
{ "Option value", "ipxwan.option_value",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
|
|
};
|
|
static gint *ett[] = {
|
|
&ett_ipxwan,
|
|
&ett_ipxwan_option,
|
|
};
|
|
static ei_register_info ei[] = {
|
|
{ &ei_ipxwan_option_data_len, { "ipxwan.option_data_len.invalid", PI_MALFORMED, PI_ERROR, "Wrong length", EXPFILL }},
|
|
};
|
|
|
|
expert_module_t* expert_ipxwan;
|
|
|
|
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));
|
|
expert_ipxwan = expert_register_protocol(proto_ipxwan);
|
|
expert_register_field_array(expert_ipxwan, ei, array_length(ei));
|
|
}
|
|
|
|
void
|
|
proto_reg_handoff_ipxwan(void)
|
|
{
|
|
dissector_handle_t ipxwan_handle;
|
|
|
|
ipxwan_handle = create_dissector_handle(dissect_ipxwan,
|
|
proto_ipxwan);
|
|
dissector_add_uint("ipx.socket", IPX_SOCKET_IPXWAN, ipxwan_handle);
|
|
}
|
|
|
|
/*
|
|
* Editor modelines - http://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:
|
|
*/
|