forked from osmocom/wireshark
1389 lines
54 KiB
C
1389 lines
54 KiB
C
/* packet-pn-dcp.c
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* Routines for PN-DCP (PROFINET Discovery and basic Configuration Protocol)
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* packet dissection.
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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 1999 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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/*
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* Cyclic PNIO RTC1 Data Dissection:
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*
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* Added new functions to packet-pn-dcp.c. The profinet plug-in will now save
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* the information (Stationname, -type, -id) of "Ident OK" frames. Those
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* informations will later be used for detailled dissection of cyclic PNIO RTC1
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* dataframes.
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*
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* The declaration of the new added structures are within packet-pn.h to
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* use the information within packet-pn-rtc-one.c
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*
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* Overview for cyclic PNIO RTC1 data dissection functions:
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* -> dissect_PNDCP_Suboption_Device (Save Stationname, -type, -id)
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*/
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#include "config.h"
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#include <string.h>
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#include <glib.h>
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#include <epan/packet.h>
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#include <epan/exceptions.h>
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#include <epan/to_str.h>
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#include <epan/wmem/wmem.h>
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#include <epan/expert.h>
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#include <epan/conversation.h>
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#include "packet-pn.h"
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void proto_register_pn_dcp(void);
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void proto_reg_handoff_pn_dcp(void);
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int proto_pn_dcp = -1;
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static int hf_pn_dcp_service_id = -1;
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static int hf_pn_dcp_service_type = -1;
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static int hf_pn_dcp_xid = -1;
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static int hf_pn_dcp_reserved8 = -1;
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static int hf_pn_dcp_reserved16 = -1;
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static int hf_pn_dcp_response_delay = -1;
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static int hf_pn_dcp_data_length = -1;
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static int hf_pn_dcp_block_length = -1;
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static int hf_pn_dcp_block = -1;
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static int hf_pn_dcp_block_error = -1;
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static int hf_pn_dcp_option = -1;
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static int hf_pn_dcp_block_info = -1;
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static int hf_pn_dcp_block_qualifier = -1;
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static int hf_pn_dcp_blockqualifier = -1;
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static int hf_pn_dcp_blockqualifier_r2f = -1;
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static int hf_pn_dcp_suboption_ip = -1;
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static int hf_pn_dcp_suboption_ip_block_info = -1;
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static int hf_pn_dcp_suboption_ip_ip = -1;
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static int hf_pn_dcp_suboption_ip_subnetmask = -1;
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static int hf_pn_dcp_suboption_ip_standard_gateway = -1;
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static int hf_pn_dcp_suboption_device = -1;
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static int hf_pn_dcp_suboption_device_typeofstation = -1;
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static int hf_pn_dcp_suboption_device_nameofstation = -1;
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static int hf_pn_dcp_suboption_vendor_id = -1;
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static int hf_pn_dcp_suboption_device_id = -1;
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static int hf_pn_dcp_suboption_device_role = -1;
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static int hf_pn_dcp_suboption_device_aliasname = -1;
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static int hf_pn_dcp_suboption_device_instance_high = -1;
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static int hf_pn_dcp_suboption_device_instance_low = -1;
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static int hf_pn_dcp_suboption_device_oem_ven_id = -1;
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static int hf_pn_dcp_suboption_device_oem_dev_id = -1;
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static int hf_pn_dcp_suboption_dhcp = -1;
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static int hf_pn_dcp_suboption_dhcp_device_id = -1;
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static int hf_pn_dcp_suboption_control = -1;
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static int hf_pn_dcp_suboption_control_response = -1;
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static int hf_pn_dcp_suboption_deviceinitiative = -1;
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static int hf_pn_dcp_deviceinitiative_value = -1;
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static int hf_pn_dcp_suboption_all = -1;
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static int hf_pn_dcp_suboption_manuf = -1;
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static gint ett_pn_dcp = -1;
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static gint ett_pn_dcp_block = -1;
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static expert_field ei_pn_dcp_block_error_unknown = EI_INIT;
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static expert_field ei_pn_dcp_ip_conflict = EI_INIT;
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#define PNDCP_SERVICE_ID_GET 0x03
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#define PNDCP_SERVICE_ID_SET 0x04
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#define PNDCP_SERVICE_ID_IDENTIFY 0x05
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#define PNDCP_SERVICE_ID_HELLO 0x06
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static const value_string pn_dcp_service_id[] = {
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{ 0x00, "reserved" },
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{ 0x01, "Manufacturer specific" },
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{ 0x02, "Manufacturer specific" },
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{ PNDCP_SERVICE_ID_GET, "Get" },
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{ PNDCP_SERVICE_ID_SET, "Set" },
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{ PNDCP_SERVICE_ID_IDENTIFY,"Identify" },
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{ PNDCP_SERVICE_ID_HELLO, "Hello" },
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/* 0x07 - 0xff reserved */
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{ 0, NULL }
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};
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#define PNDCP_SERVICE_TYPE_REQUEST 0
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#define PNDCP_SERVICE_TYPE_RESPONSE_SUCCESS 1
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#define PNDCP_SERVICE_TYPE_RESPONSE_UNSUPPORTED 5
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static const value_string pn_dcp_service_type[] = {
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{ PNDCP_SERVICE_TYPE_REQUEST, "Request" },
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{ PNDCP_SERVICE_TYPE_RESPONSE_SUCCESS, "Response Success" },
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{ PNDCP_SERVICE_TYPE_RESPONSE_UNSUPPORTED, "Response - Request not supported" },
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/* all others reserved */
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{ 0, NULL }
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};
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static const value_string pn_dcp_block_error[] = {
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{ 0x00, "Ok" },
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{ 0x01, "Option unsupp." },
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{ 0x02, "Suboption unsupp. or no DataSet avail." },
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{ 0x03, "Suboption not set" },
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{ 0x04, "Resource Error" },
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{ 0x05, "SET not possible by local reasons" },
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{ 0x06, "In operation, SET not possible" },
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/* all others reserved */
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{ 0, NULL }
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};
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static const value_string pn_dcp_block_info[] = {
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{ 0x0000, "Reserved" },
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/*0x0001 - 0xffff reserved */
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{ 0, NULL }
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};
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static const value_string pn_dcp_block_qualifier[] = {
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{ 0x0000, "Use the value temporary" },
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{ 0x0001, "Save the value permanent" },
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/*0x0002 - 0xffff reserved */
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{ 0, NULL }
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};
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static const value_string pn_dcp_BlockQualifier[] = {
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{ 0x0002, "Reset application data" },
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{ 0x0003, "Reset application data" },
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{ 0x0004, "Reset communication parameter" },
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{ 0x0005, "Reset communication parameter" },
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{ 0x0006, "Reset engineering parameter" },
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{ 0x0007, "Reset engineering parameter" },
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{ 0x0008, "Resets all stored data" },
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{ 0x0009, "Resets all stored data" },
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{ 0x000A, "Reset engineering parameter" },
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{ 0x000B, "Reset engineering parameter" },
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{ 0x000C, "Reserved" },
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{ 0x000D, "Reserved" },
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{ 0x0009, "Reserved" },
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{ 0x0010, "Resets all stored data in the IOD or IOC to its factory values" },
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{ 0x0011, "Resets all stored data in the IOD or IOC to its factory values" },
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{ 0x0012, "Reset and restore data" },
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{ 0x0013, "Reset and restore data" },
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{ 0x0014, "Reserved" },
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{ 0x0015, "Reserved" },
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{ 0x0016, "Reserved" },
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{ 0, NULL }
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};
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#define PNDCP_OPTION_IP 0x01
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#define PNDCP_OPTION_DEVICE 0x02
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#define PNDCP_OPTION_DHCP 0x03
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#define PNDCP_OPTION_RESERVED 0x04
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#define PNDCP_OPTION_CONTROL 0x05
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#define PNDCP_OPTION_DEVICEINITIATIVE 0x06
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#define PNDCP_OPTION_MANUF_X80 0x80
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#define PNDCP_OPTION_MANUF_X81 0x81
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#define PNDCP_OPTION_MANUF_X82 0x82
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#define PNDCP_OPTION_MANUF_X83 0x83
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#define PNDCP_OPTION_MANUF_X84 0x84
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#define PNDCP_OPTION_MANUF_X85 0x85
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#define PNDCP_OPTION_MANUF_X86 0x86
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#define PNDCP_OPTION_ALLSELECTOR 0xff
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static const value_string pn_dcp_option[] = {
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{ 0x00, "reserved" },
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{ PNDCP_OPTION_IP, "IP" },
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{ PNDCP_OPTION_DEVICE, "Device properties" },
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{ PNDCP_OPTION_DHCP, "DHCP" },
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{ PNDCP_OPTION_RESERVED, "Reserved" },
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{ PNDCP_OPTION_CONTROL, "Control" },
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{ PNDCP_OPTION_DEVICEINITIATIVE, "Device Initiative" },
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/*0x07 - 0x7f reserved */
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/*0x80 - 0xfe manufacturer specific */
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{ PNDCP_OPTION_MANUF_X80, "Manufacturer specific" },
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{ PNDCP_OPTION_MANUF_X81, "Manufacturer specific" },
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{ PNDCP_OPTION_MANUF_X82, "Manufacturer specific" },
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{ PNDCP_OPTION_MANUF_X83, "Manufacturer specific" },
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{ PNDCP_OPTION_MANUF_X84, "Manufacturer specific" },
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{ PNDCP_OPTION_MANUF_X85, "Manufacturer specific" },
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{ PNDCP_OPTION_MANUF_X86, "Manufacturer specific" },
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{ PNDCP_OPTION_ALLSELECTOR, "All Selector" },
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{ 0, NULL }
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};
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#define PNDCP_SUBOPTION_IP_MAC 0x01
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#define PNDCP_SUBOPTION_IP_IP 0x02
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static const value_string pn_dcp_suboption_ip[] = {
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{ 0x00, "Reserved" },
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{ PNDCP_SUBOPTION_IP_MAC, "MAC address" },
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{ PNDCP_SUBOPTION_IP_IP, "IP parameter" },
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/*0x03 - 0xff reserved */
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{ 0, NULL }
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};
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static const value_string pn_dcp_suboption_ip_block_info[] = {
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{ 0x0000, "IP not set" },
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{ 0x0001, "IP set" },
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{ 0x0002, "IP set by DHCP" },
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{ 0x0080, "IP not set (address conflict detected)" },
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{ 0x0081, "IP set (address conflict detected)" },
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{ 0x0082, "IP set by DHCP (address conflict detected)" },
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/*0x0003 - 0xffff reserved */
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{ 0, NULL }
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};
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#define PNDCP_SUBOPTION_DEVICE_MANUF 0x01
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#define PNDCP_SUBOPTION_DEVICE_NAMEOFSTATION 0x02
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#define PNDCP_SUBOPTION_DEVICE_DEV_ID 0x03
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#define PNDCP_SUBOPTION_DEVICE_DEV_ROLE 0x04
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#define PNDCP_SUBOPTION_DEVICE_DEV_OPTIONS 0x05
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#define PNDCP_SUBOPTION_DEVICE_ALIAS_NAME 0x06
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#define PNDCP_SUBOPTION_DEVICE_DEV_INSTANCE 0x07
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#define PNDCP_SUBOPTION_DEVICE_OEM_DEV_ID 0x08
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static const value_string pn_dcp_suboption_device[] = {
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{ 0x00, "Reserved" },
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{ PNDCP_SUBOPTION_DEVICE_MANUF, "Manufacturer specific (Type of Station)" },
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{ PNDCP_SUBOPTION_DEVICE_NAMEOFSTATION, "Name of Station" },
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{ PNDCP_SUBOPTION_DEVICE_DEV_ID, "Device ID" },
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{ PNDCP_SUBOPTION_DEVICE_DEV_ROLE, "Device Role" },
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{ PNDCP_SUBOPTION_DEVICE_DEV_OPTIONS, "Device Options" },
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{ PNDCP_SUBOPTION_DEVICE_ALIAS_NAME, "Alias Name" },
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{ PNDCP_SUBOPTION_DEVICE_DEV_INSTANCE, "Device Instance" },
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{ PNDCP_SUBOPTION_DEVICE_OEM_DEV_ID, "OEM Device ID"},
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/*0x09 - 0xff reserved */
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{ 0, NULL }
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};
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#define PNDCP_SUBOPTION_DHCP_CLIENT_ID 61
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static const value_string pn_dcp_suboption_dhcp[] = {
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{ 12, "Host name" },
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{ 43, "Vendor specific" },
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{ 54, "Server identifier" },
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{ 55, "Parameter request list" },
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{ 60, "Class identifier" },
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{ PNDCP_SUBOPTION_DHCP_CLIENT_ID, "DHCP client identifier" },
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{ 81, "FQDN, Fully Qualified Domain Name" },
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{ 97, "UUID/GUID-based Client" },
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{ 255, "Control DHCP for address resolution" },
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/*all others reserved */
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{ 0, NULL }
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};
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#define PNDCP_SUBOPTION_CONTROL_START_TRANS 0x01
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#define PNDCP_SUBOPTION_CONTROL_END_TRANS 0x02
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#define PNDCP_SUBOPTION_CONTROL_SIGNAL 0x03
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#define PNDCP_SUBOPTION_CONTROL_RESPONSE 0x04
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#define PNDCP_SUBOPTION_CONTROL_FACT_RESET 0x05
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#define PNDCP_SUBOPTION_CONTROL_RESET_TO_FACT 0x06
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static const value_string pn_dcp_suboption_control[] = {
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{ 0x00, "Reserved" },
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{ PNDCP_SUBOPTION_CONTROL_START_TRANS, "Start Transaction" },
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{ PNDCP_SUBOPTION_CONTROL_END_TRANS, "End Transaction" },
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{ PNDCP_SUBOPTION_CONTROL_SIGNAL, "Signal" },
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{ PNDCP_SUBOPTION_CONTROL_RESPONSE, "Response" },
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{ PNDCP_SUBOPTION_CONTROL_FACT_RESET, "Reset Factory Settings" },
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{ PNDCP_SUBOPTION_CONTROL_RESET_TO_FACT,"Reset to Factory" },
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/*0x07 - 0xff reserved */
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{ 0, NULL }
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};
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#define PNDCP_SUBOPTION_DEVICEINITIATIVE 0x01
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static const value_string pn_dcp_suboption_deviceinitiative[] = {
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{ 0x00, "Reserved" },
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{ PNDCP_SUBOPTION_DEVICEINITIATIVE, "Device Initiative" },
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/*0x00 - 0xff reserved */
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{ 0, NULL }
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};
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static const value_string pn_dcp_deviceinitiative_value[] = {
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{ 0x00, "Device does not issue a DCP-Hello-ReqPDU after power on" },
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{ 0x01, "Device does issue a DCP-Hello-ReqPDU after power on" },
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/*0x02 - 0xff reserved */
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{ 0, NULL }
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};
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static const value_string pn_dcp_suboption_all[] = {
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{ 0xff, "ALL Selector" },
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/* all other reserved */
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{ 0, NULL }
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};
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static const value_string pn_dcp_suboption_other[] = {
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{ 0x00, "Default" },
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/* all other reserved */
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{ 0, NULL }
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};
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static const value_string pn_dcp_suboption_manuf[] = {
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/* none known */
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{ 0, NULL }
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};
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/* dissect the option field */
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static int
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dissect_PNDCP_Option(tvbuff_t *tvb, int offset, packet_info *pinfo,
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proto_tree *tree, proto_item *block_item, int hfindex, gboolean append_col)
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{
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guint8 option;
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guint8 suboption;
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const value_string *val_str;
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offset = dissect_pn_uint8 (tvb, offset, pinfo, tree, hfindex, &option);
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switch (option) {
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case PNDCP_OPTION_IP:
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offset = dissect_pn_uint8(tvb, offset, pinfo, tree, hf_pn_dcp_suboption_ip, &suboption);
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val_str = pn_dcp_suboption_ip;
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break;
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case PNDCP_OPTION_DEVICE:
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offset = dissect_pn_uint8(tvb, offset, pinfo, tree, hf_pn_dcp_suboption_device, &suboption);
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val_str = pn_dcp_suboption_device;
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break;
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case PNDCP_OPTION_DHCP:
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offset = dissect_pn_uint8(tvb, offset, pinfo, tree, hf_pn_dcp_suboption_dhcp, &suboption);
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val_str = pn_dcp_suboption_dhcp;
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break;
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case PNDCP_OPTION_CONTROL:
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offset = dissect_pn_uint8(tvb, offset, pinfo, tree, hf_pn_dcp_suboption_control, &suboption);
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val_str = pn_dcp_suboption_control;
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break;
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case PNDCP_OPTION_DEVICEINITIATIVE:
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offset = dissect_pn_uint8(tvb, offset, pinfo, tree, hf_pn_dcp_suboption_deviceinitiative, &suboption);
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val_str = pn_dcp_suboption_deviceinitiative;
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break;
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case PNDCP_OPTION_ALLSELECTOR:
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offset = dissect_pn_uint8(tvb, offset, pinfo, tree, hf_pn_dcp_suboption_all, &suboption);
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val_str = pn_dcp_suboption_all;
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break;
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default:
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offset = dissect_pn_uint8(tvb, offset, pinfo, tree, hf_pn_dcp_suboption_manuf, &suboption);
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val_str = pn_dcp_suboption_manuf;
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}
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proto_item_append_text(block_item, ", Status from %s - %s",
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val_to_str(option, pn_dcp_option, "Unknown"), val_to_str(suboption, val_str, "Unknown"));
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if (append_col) {
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col_append_fstr(pinfo->cinfo, COL_INFO, ", %s", val_to_str(suboption, val_str, "Unknown"));
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}
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return offset;
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}
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/* dissect the "IP" suboption */
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static int
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dissect_PNDCP_Suboption_IP(tvbuff_t *tvb, int offset, packet_info *pinfo,
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proto_tree *tree, proto_item *block_item, proto_item *dcp_item,
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guint8 service_id, gboolean is_response)
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{
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guint8 suboption;
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guint16 block_length;
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guint16 block_info;
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guint16 block_qualifier;
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guint32 ip;
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proto_item *item = NULL;
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address addr;
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/* SuboptionIPParameter */
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offset = dissect_pn_uint8 (tvb, offset, pinfo, tree, hf_pn_dcp_suboption_ip, &suboption);
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/* DCPBlockLength */
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offset = dissect_pn_uint16(tvb, offset, pinfo, tree, hf_pn_dcp_block_length, &block_length);
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switch (suboption) {
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case PNDCP_SUBOPTION_IP_MAC:
|
|
/* MACAddressValue? */
|
|
pn_append_info(pinfo, dcp_item, ", MAC");
|
|
proto_item_append_text(block_item, "IP/MAC");
|
|
|
|
offset = dissect_pn_undecoded(tvb, offset, pinfo, tree, block_length);
|
|
break;
|
|
case PNDCP_SUBOPTION_IP_IP:
|
|
pn_append_info(pinfo, dcp_item, ", IP");
|
|
proto_item_append_text(block_item, "IP/IP");
|
|
|
|
/* BlockInfo? */
|
|
if ( ((service_id == PNDCP_SERVICE_ID_IDENTIFY) && is_response) ||
|
|
((service_id == PNDCP_SERVICE_ID_HELLO) && !is_response) ||
|
|
((service_id == PNDCP_SERVICE_ID_GET) && is_response)) {
|
|
block_info = tvb_get_ntohs (tvb, offset);
|
|
if (tree) {
|
|
item = proto_tree_add_uint(tree, hf_pn_dcp_suboption_ip_block_info, tvb, offset, 2, block_info);
|
|
}
|
|
offset += 2;
|
|
proto_item_append_text(block_item, ", BlockInfo: %s",
|
|
val_to_str(block_info, pn_dcp_suboption_ip_block_info, "Undecoded"));
|
|
block_length -= 2;
|
|
if (block_info & 0x80) {
|
|
expert_add_info(pinfo, item, &ei_pn_dcp_ip_conflict);
|
|
}
|
|
}
|
|
|
|
/* BlockQualifier? */
|
|
if ( (service_id == PNDCP_SERVICE_ID_SET) && !is_response) {
|
|
offset = dissect_pn_uint16(tvb, offset, pinfo, tree, hf_pn_dcp_block_qualifier, &block_qualifier);
|
|
proto_item_append_text(block_item, ", BlockQualifier: %s",
|
|
val_to_str(block_qualifier, pn_dcp_block_qualifier, "Unknown"));
|
|
block_length -= 2;
|
|
}
|
|
|
|
/* IPParameterValue ... */
|
|
|
|
/* IPAddress */
|
|
offset = dissect_pn_ipv4(tvb, offset, pinfo, tree, hf_pn_dcp_suboption_ip_ip, &ip);
|
|
set_address(&addr, AT_IPv4, 4, &ip);
|
|
proto_item_append_text(block_item, ", IP: %s", address_to_str(wmem_packet_scope(), &addr));
|
|
|
|
/* Subnetmask */
|
|
offset = dissect_pn_ipv4(tvb, offset, pinfo, tree, hf_pn_dcp_suboption_ip_subnetmask, &ip);
|
|
set_address(&addr, AT_IPv4, 4, &ip);
|
|
proto_item_append_text(block_item, ", Subnet: %s", address_to_str(wmem_packet_scope(), &addr));
|
|
|
|
/* StandardGateway */
|
|
offset = dissect_pn_ipv4(tvb, offset, pinfo, tree, hf_pn_dcp_suboption_ip_standard_gateway, &ip);
|
|
set_address(&addr, AT_IPv4, 4, &ip);
|
|
proto_item_append_text(block_item, ", Gateway: %s", address_to_str(wmem_packet_scope(), &addr));
|
|
break;
|
|
default:
|
|
offset = dissect_pn_undecoded(tvb, offset, pinfo, tree, block_length);
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
/* dissect the "device" suboption */
|
|
static int
|
|
dissect_PNDCP_Suboption_Device(tvbuff_t *tvb, int offset, packet_info *pinfo,
|
|
proto_tree *tree, proto_item *block_item, proto_item *dcp_item,
|
|
guint8 service_id, gboolean is_response)
|
|
{
|
|
guint8 suboption;
|
|
guint16 block_length;
|
|
gchar *info_str;
|
|
guint8 device_role;
|
|
guint16 vendor_id;
|
|
guint16 device_id;
|
|
char *typeofstation;
|
|
char *nameofstation;
|
|
char *aliasname;
|
|
guint16 block_info;
|
|
guint16 block_qualifier;
|
|
gboolean have_block_info = FALSE;
|
|
gboolean have_block_qualifier = FALSE;
|
|
guint8 device_instance_high;
|
|
guint8 device_instance_low;
|
|
guint16 oem_vendor_id;
|
|
guint16 oem_device_id;
|
|
conversation_t *conversation;
|
|
stationInfo *station_info;
|
|
|
|
/* SuboptionDevice... */
|
|
offset = dissect_pn_uint8(tvb, offset, pinfo, tree, hf_pn_dcp_suboption_device, &suboption);
|
|
/* DCPBlockLength */
|
|
offset = dissect_pn_uint16(tvb, offset, pinfo, tree, hf_pn_dcp_block_length, &block_length);
|
|
|
|
/* BlockInfo? */
|
|
if ( ((service_id == PNDCP_SERVICE_ID_IDENTIFY) && is_response) ||
|
|
((service_id == PNDCP_SERVICE_ID_HELLO) && !is_response) ||
|
|
((service_id == PNDCP_SERVICE_ID_GET) && is_response)) {
|
|
offset = dissect_pn_uint16(tvb, offset, pinfo, tree, hf_pn_dcp_block_info, &block_info);
|
|
have_block_info = TRUE;
|
|
block_length -= 2;
|
|
}
|
|
|
|
/* BlockQualifier? */
|
|
if ( (service_id == PNDCP_SERVICE_ID_SET) && !is_response) {
|
|
offset = dissect_pn_uint16(tvb, offset, pinfo, tree, hf_pn_dcp_block_qualifier, &block_qualifier);
|
|
have_block_qualifier = TRUE;
|
|
block_length -= 2;
|
|
}
|
|
|
|
switch (suboption) {
|
|
case PNDCP_SUBOPTION_DEVICE_MANUF:
|
|
typeofstation = (char *)wmem_alloc(wmem_packet_scope(), block_length+1);
|
|
tvb_memcpy(tvb, (guint8 *) typeofstation, offset, block_length);
|
|
typeofstation[block_length] = '\0';
|
|
proto_tree_add_string (tree, hf_pn_dcp_suboption_device_typeofstation, tvb, offset, block_length, typeofstation);
|
|
pn_append_info(pinfo, dcp_item, ", DeviceVendorValue");
|
|
proto_item_append_text(block_item, "Device/Manufacturer specific");
|
|
if (have_block_qualifier) {
|
|
proto_item_append_text(block_item, ", BlockQualifier: %s",
|
|
val_to_str(block_qualifier, pn_dcp_block_qualifier, "Unknown"));
|
|
}
|
|
if (have_block_info){
|
|
proto_item_append_text(block_item, ", BlockInfo: %s",
|
|
val_to_str(block_info, pn_dcp_block_info, "Unknown"));
|
|
}
|
|
proto_item_append_text(block_item, ", DeviceVendorValue: \"%s\"", typeofstation);
|
|
|
|
|
|
if (pinfo->fd->flags.visited == FALSE) {
|
|
/* Create a conversation between the MAC addresses */
|
|
conversation = find_conversation(pinfo->num, &pinfo->dl_src, &pinfo->dl_dst, PT_NONE, 0, 0, 0);
|
|
if (conversation == NULL) {
|
|
conversation = conversation_new(pinfo->num, &pinfo->dl_src, &pinfo->dl_dst, PT_NONE, 0, 0, 0);
|
|
}
|
|
|
|
station_info = (stationInfo*)conversation_get_proto_data(conversation, proto_pn_dcp);
|
|
if (station_info == NULL) {
|
|
station_info = wmem_new0(wmem_file_scope(), stationInfo);
|
|
init_pnio_rtc1_station(station_info);
|
|
conversation_add_proto_data(conversation, proto_pn_dcp, station_info);
|
|
}
|
|
|
|
station_info->typeofstation = wmem_strdup(wmem_file_scope(), typeofstation);
|
|
}
|
|
|
|
offset += block_length;
|
|
break;
|
|
|
|
case PNDCP_SUBOPTION_DEVICE_NAMEOFSTATION:
|
|
nameofstation = (char *)wmem_alloc(wmem_packet_scope(), block_length+1);
|
|
tvb_memcpy(tvb, (guint8 *) nameofstation, offset, block_length);
|
|
nameofstation[block_length] = '\0';
|
|
proto_tree_add_string (tree, hf_pn_dcp_suboption_device_nameofstation, tvb, offset, block_length, nameofstation);
|
|
pn_append_info(pinfo, dcp_item, wmem_strdup_printf(wmem_packet_scope(), ", NameOfStation:\"%s\"", nameofstation));
|
|
proto_item_append_text(block_item, "Device/NameOfStation");
|
|
if (have_block_qualifier) {
|
|
proto_item_append_text(block_item, ", BlockQualifier: %s",
|
|
val_to_str(block_qualifier, pn_dcp_block_qualifier, "Unknown"));
|
|
}
|
|
if (have_block_info) {
|
|
proto_item_append_text(block_item, ", BlockInfo: %s",
|
|
val_to_str(block_info, pn_dcp_block_info, "Unknown"));
|
|
}
|
|
proto_item_append_text(block_item, ", \"%s\"", nameofstation);
|
|
|
|
|
|
if (pinfo->fd->flags.visited == FALSE) {
|
|
/* Create a conversation between the MAC addresses */
|
|
conversation = find_conversation(pinfo->num, &pinfo->dl_src, &pinfo->dl_dst, PT_NONE, 0, 0, 0);
|
|
if (conversation == NULL) {
|
|
conversation = conversation_new(pinfo->num, &pinfo->dl_src, &pinfo->dl_dst, PT_NONE, 0, 0, 0);
|
|
}
|
|
|
|
station_info = (stationInfo*)conversation_get_proto_data(conversation, proto_pn_dcp);
|
|
if (station_info == NULL) {
|
|
station_info = wmem_new0(wmem_file_scope(), stationInfo);
|
|
init_pnio_rtc1_station(station_info);
|
|
conversation_add_proto_data(conversation, proto_pn_dcp, station_info);
|
|
}
|
|
|
|
station_info->nameofstation = wmem_strdup(wmem_file_scope(), nameofstation);
|
|
}
|
|
|
|
offset += block_length;
|
|
break;
|
|
|
|
case PNDCP_SUBOPTION_DEVICE_DEV_ID:
|
|
offset = dissect_pn_uint16(tvb, offset, pinfo, tree, hf_pn_dcp_suboption_vendor_id, &vendor_id);
|
|
offset = dissect_pn_uint16(tvb, offset, pinfo, tree, hf_pn_dcp_suboption_device_id, &device_id);
|
|
|
|
if (pinfo->fd->flags.visited == FALSE) {
|
|
/* Create a conversation between the MAC addresses */
|
|
conversation = find_conversation(pinfo->num, &pinfo->dl_src, &pinfo->dl_dst, PT_NONE, 0, 0, 0);
|
|
if (conversation == NULL) {
|
|
conversation = conversation_new(pinfo->num, &pinfo->dl_src, &pinfo->dl_dst, PT_NONE, 0, 0, 0);
|
|
}
|
|
|
|
station_info = (stationInfo*)conversation_get_proto_data(conversation, proto_pn_dcp);
|
|
if (station_info == NULL) {
|
|
station_info = wmem_new0(wmem_file_scope(), stationInfo);
|
|
init_pnio_rtc1_station(station_info);
|
|
conversation_add_proto_data(conversation, proto_pn_dcp, station_info);
|
|
}
|
|
|
|
station_info->u16Vendor_id = vendor_id;
|
|
station_info->u16Device_id = device_id;
|
|
}
|
|
|
|
|
|
pn_append_info(pinfo, dcp_item, ", Dev-ID");
|
|
proto_item_append_text(block_item, "Device/Device ID");
|
|
if (have_block_qualifier) {
|
|
proto_item_append_text(block_item, ", BlockQualifier: %s",
|
|
val_to_str(block_qualifier, pn_dcp_block_qualifier, "Unknown"));
|
|
}
|
|
if (have_block_info) {
|
|
proto_item_append_text(block_item, ", BlockInfo: %s",
|
|
val_to_str(block_info, pn_dcp_block_info, "Unknown"));
|
|
}
|
|
proto_item_append_text(block_item, ", VendorID: 0x%04x / DeviceID: 0x%04x", vendor_id, device_id);
|
|
break;
|
|
case PNDCP_SUBOPTION_DEVICE_DEV_ROLE:
|
|
offset = dissect_pn_uint8(tvb, offset, pinfo, tree, hf_pn_dcp_suboption_device_role, &device_role);
|
|
offset = dissect_pn_uint8(tvb, offset, pinfo, tree, hf_pn_dcp_reserved8, NULL);
|
|
pn_append_info(pinfo, dcp_item, ", Dev-Role");
|
|
proto_item_append_text(block_item, "Device/Device Role");
|
|
if (have_block_qualifier) {
|
|
proto_item_append_text(block_item, ", BlockQualifier: %s",
|
|
val_to_str(block_qualifier, pn_dcp_block_qualifier, "Unknown"));
|
|
}
|
|
if (have_block_info)
|
|
proto_item_append_text(block_item, ", BlockInfo: %s", val_to_str(block_info, pn_dcp_block_info, "Unknown"));
|
|
if (device_role & 0x01)
|
|
proto_item_append_text(block_item, ", IO-Device");
|
|
if (device_role & 0x02)
|
|
proto_item_append_text(block_item, ", IO-Controller");
|
|
if (device_role & 0x04)
|
|
proto_item_append_text(block_item, ", IO-Multidevice");
|
|
if (device_role & 0x08)
|
|
proto_item_append_text(block_item, ", PN-Supervisor");
|
|
break;
|
|
case PNDCP_SUBOPTION_DEVICE_DEV_OPTIONS:
|
|
info_str = wmem_strdup_printf(wmem_packet_scope(), ", Dev-Options(%u)", block_length/2);
|
|
pn_append_info(pinfo, dcp_item, info_str);
|
|
proto_item_append_text(block_item, "Device/Device Options");
|
|
if (have_block_qualifier) {
|
|
proto_item_append_text(block_item, ", BlockQualifier: %s",
|
|
val_to_str(block_qualifier, pn_dcp_block_qualifier, "Unknown"));
|
|
}
|
|
if (have_block_info) {
|
|
proto_item_append_text(block_item, ", BlockInfo: %s",
|
|
val_to_str(block_info, pn_dcp_block_info, "Unknown"));
|
|
}
|
|
proto_item_append_text(block_item, ", %u options", block_length/2);
|
|
for( ; block_length != 0; block_length -= 2) {
|
|
offset = dissect_PNDCP_Option(tvb, offset, pinfo, tree, NULL /*block_item*/, hf_pn_dcp_option,
|
|
FALSE /* append_col */);
|
|
}
|
|
break;
|
|
case PNDCP_SUBOPTION_DEVICE_ALIAS_NAME:
|
|
aliasname = (char *)wmem_alloc(wmem_packet_scope(), block_length+1);
|
|
tvb_memcpy(tvb, (guint8 *) aliasname, offset, block_length);
|
|
aliasname[block_length] = '\0';
|
|
proto_tree_add_string (tree, hf_pn_dcp_suboption_device_aliasname, tvb, offset, block_length, aliasname);
|
|
pn_append_info(pinfo, dcp_item, wmem_strdup_printf(wmem_packet_scope(), ", AliasName:\"%s\"", aliasname));
|
|
proto_item_append_text(block_item, "Device/AliasName");
|
|
if (have_block_qualifier) {
|
|
proto_item_append_text(block_item, ", BlockQualifier: %s",
|
|
val_to_str(block_qualifier, pn_dcp_block_qualifier, "Unknown"));
|
|
}
|
|
if (have_block_info) {
|
|
proto_item_append_text(block_item, ", BlockInfo: %s",
|
|
val_to_str(block_info, pn_dcp_block_info, "Unknown"));
|
|
}
|
|
proto_item_append_text(block_item, ", \"%s\"", aliasname);
|
|
offset += block_length;
|
|
break;
|
|
case PNDCP_SUBOPTION_DEVICE_DEV_INSTANCE:
|
|
offset = dissect_pn_uint8(tvb, offset, pinfo, tree, hf_pn_dcp_suboption_device_instance_high, &device_instance_high);
|
|
offset = dissect_pn_uint8(tvb, offset, pinfo, tree, hf_pn_dcp_suboption_device_instance_low, &device_instance_low);
|
|
pn_append_info(pinfo, dcp_item, ", Dev-Instance");
|
|
proto_item_append_text(block_item, "Device/Device Instance");
|
|
if (have_block_qualifier) {
|
|
proto_item_append_text(block_item, ", BlockQualifier: %s",
|
|
val_to_str(block_qualifier, pn_dcp_block_qualifier, "Unknown"));
|
|
}
|
|
if (have_block_info) {
|
|
proto_item_append_text(block_item, ", BlockInfo: %s",
|
|
val_to_str(block_info, pn_dcp_block_info, "Unknown"));
|
|
}
|
|
proto_item_append_text(block_item, ", InstanceHigh: %d, Instance Low: %d",
|
|
device_instance_high, device_instance_low);
|
|
break;
|
|
case PNDCP_SUBOPTION_DEVICE_OEM_DEV_ID:
|
|
offset = dissect_pn_uint16(tvb, offset, pinfo, tree, hf_pn_dcp_suboption_device_oem_ven_id, &oem_vendor_id);
|
|
offset = dissect_pn_uint16(tvb, offset, pinfo, tree, hf_pn_dcp_suboption_device_oem_dev_id, &oem_device_id);
|
|
pn_append_info(pinfo, dcp_item, ", OEM-Dev-ID");
|
|
proto_item_append_text(block_item, "Device/OEM Device ID");
|
|
if(have_block_qualifier) {
|
|
proto_item_append_text(block_item, ", BlockQualifier: %s",
|
|
val_to_str(block_qualifier, pn_dcp_block_qualifier, "Unknown"));
|
|
}
|
|
if(have_block_info) {
|
|
proto_item_append_text(block_item, ", BlockInfo: %s",
|
|
val_to_str(block_info, pn_dcp_block_info, "Unknown"));
|
|
}
|
|
proto_item_append_text(block_item, ", OEMVendorID: 0x%04x / OEMDeviceID: 0x%04x", oem_vendor_id, oem_device_id);
|
|
break;
|
|
default:
|
|
offset = dissect_pn_undecoded(tvb, offset, pinfo, tree, block_length);
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
/* dissect the "DHCP" suboption */
|
|
static int
|
|
dissect_PNDCP_Suboption_DHCP(tvbuff_t *tvb, int offset, packet_info *pinfo,
|
|
proto_tree *tree, proto_item *block_item, proto_item *dcp_item,
|
|
guint8 service_id _U_, gboolean is_response _U_)
|
|
{
|
|
guint8 suboption;
|
|
guint16 block_length;
|
|
guint16 block_info;
|
|
guint16 block_qualifier;
|
|
gboolean have_block_info = FALSE;
|
|
gboolean have_block_qualifier = FALSE;
|
|
|
|
|
|
offset = dissect_pn_uint8(tvb, offset, pinfo, tree, hf_pn_dcp_suboption_dhcp, &suboption);
|
|
offset = dissect_pn_uint16(tvb, offset, pinfo, tree, hf_pn_dcp_block_length, &block_length);
|
|
|
|
/* BlockInfo? */
|
|
if ( ((service_id == PNDCP_SERVICE_ID_IDENTIFY) && is_response) ||
|
|
((service_id == PNDCP_SERVICE_ID_HELLO) && !is_response) ||
|
|
((service_id == PNDCP_SERVICE_ID_GET) && is_response)) {
|
|
offset = dissect_pn_uint16(tvb, offset, pinfo, tree, hf_pn_dcp_block_info, &block_info);
|
|
have_block_info=TRUE;
|
|
block_length -= 2;
|
|
}
|
|
|
|
/* BlockQualifier? */
|
|
if ( (service_id == PNDCP_SERVICE_ID_SET) && !is_response) {
|
|
offset = dissect_pn_uint16(tvb, offset, pinfo, tree, hf_pn_dcp_block_qualifier, &block_qualifier);
|
|
have_block_qualifier=TRUE;
|
|
block_length -= 2;
|
|
}
|
|
|
|
switch (suboption) {
|
|
case PNDCP_SUBOPTION_DHCP_CLIENT_ID:
|
|
pn_append_info(pinfo, dcp_item, ", DHCP client identifier");
|
|
proto_item_append_text(block_item, "DHCP/Client-ID");
|
|
if (have_block_qualifier) {
|
|
proto_item_append_text(block_item, ", BlockQualifier: %s",
|
|
val_to_str(block_qualifier, pn_dcp_block_qualifier, "Unknown"));
|
|
}
|
|
if (have_block_info) {
|
|
proto_item_append_text(block_item, ", BlockInfo: %s",
|
|
val_to_str(block_info, pn_dcp_block_info, "Unknown"));
|
|
}
|
|
proto_tree_add_item(tree, hf_pn_dcp_suboption_dhcp_device_id, tvb, offset, block_length, ENC_NA);
|
|
offset += block_length;
|
|
break;
|
|
default:
|
|
offset = dissect_pn_undecoded(tvb, offset, pinfo, tree, block_length);
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
/* dissect the "control" suboption */
|
|
static int
|
|
dissect_PNDCP_Suboption_Control(tvbuff_t *tvb, int offset, packet_info *pinfo,
|
|
proto_tree *tree, proto_item *block_item, proto_item *dcp_item,
|
|
guint8 service_id _U_, gboolean is_response _U_)
|
|
{
|
|
guint8 suboption;
|
|
guint16 block_length;
|
|
guint16 block_qualifier;
|
|
guint16 BlockQualifier;
|
|
gchar *info_str;
|
|
guint8 block_error;
|
|
proto_item *item = NULL;
|
|
|
|
|
|
offset = dissect_pn_uint8(tvb, offset, pinfo, tree, hf_pn_dcp_suboption_control, &suboption);
|
|
offset = dissect_pn_uint16(tvb, offset, pinfo, tree, hf_pn_dcp_block_length, &block_length);
|
|
|
|
switch (suboption) {
|
|
case PNDCP_SUBOPTION_CONTROL_START_TRANS:
|
|
pn_append_info(pinfo, dcp_item, ", Start-Trans");
|
|
proto_item_append_text(block_item, "Control/Start-Transaction");
|
|
offset = dissect_pn_uint16(tvb, offset, pinfo, tree, hf_pn_dcp_block_qualifier, &block_qualifier);
|
|
break;
|
|
case PNDCP_SUBOPTION_CONTROL_END_TRANS:
|
|
pn_append_info(pinfo, dcp_item, ", End-Trans");
|
|
proto_item_append_text(block_item, "Control/End-Transaction");
|
|
offset = dissect_pn_uint16(tvb, offset, pinfo, tree, hf_pn_dcp_block_qualifier, &block_qualifier);
|
|
break;
|
|
case PNDCP_SUBOPTION_CONTROL_SIGNAL:
|
|
pn_append_info(pinfo, dcp_item, ", Signal");
|
|
proto_item_append_text(block_item, "Control/Signal");
|
|
offset = dissect_pn_uint16(tvb, offset, pinfo, tree, hf_pn_dcp_block_qualifier, &block_qualifier);
|
|
block_length -= 2;
|
|
|
|
offset = dissect_pn_undecoded(tvb, offset, pinfo, tree, block_length);
|
|
break;
|
|
case PNDCP_SUBOPTION_CONTROL_RESPONSE:
|
|
proto_item_append_text(block_item, "Control/Response");
|
|
offset = dissect_PNDCP_Option(tvb, offset, pinfo, tree, block_item, hf_pn_dcp_suboption_control_response,
|
|
FALSE /* append_col */);
|
|
block_error = tvb_get_guint8 (tvb, offset);
|
|
if (tree) {
|
|
item = proto_tree_add_uint(tree, hf_pn_dcp_block_error, tvb, offset, 1, block_error);
|
|
}
|
|
offset += 1;
|
|
if (block_error != 0) {
|
|
expert_add_info_format(pinfo, item, &ei_pn_dcp_block_error_unknown, "%s",
|
|
val_to_str(block_error, pn_dcp_block_error, "Unknown"));
|
|
}
|
|
info_str = wmem_strdup_printf(wmem_packet_scope(), ", Response(%s)",
|
|
val_to_str(block_error, pn_dcp_block_error, "Unknown"));
|
|
pn_append_info(pinfo, dcp_item, info_str);
|
|
proto_item_append_text(block_item, ", BlockError: %s",
|
|
val_to_str(block_error, pn_dcp_block_error, "Unknown"));
|
|
|
|
break;
|
|
case PNDCP_SUBOPTION_CONTROL_FACT_RESET:
|
|
pn_append_info(pinfo, dcp_item, ", Reset FactorySettings");
|
|
proto_item_append_text(block_item, "Control/Reset FactorySettings");
|
|
block_length -= 2;
|
|
offset = dissect_pn_uint16(tvb, offset, pinfo, tree, hf_pn_dcp_blockqualifier_r2f, &BlockQualifier);
|
|
proto_item_append_text(block_item, ", BlockQualifier: %s",
|
|
val_to_str(BlockQualifier, pn_dcp_suboption_other, "reserved"));
|
|
block_length -= 2;
|
|
break;
|
|
|
|
case PNDCP_SUBOPTION_CONTROL_RESET_TO_FACT:
|
|
pn_append_info(pinfo, dcp_item, ", Reset to Factory");
|
|
proto_item_append_text(block_item, "Reset to FactorySettings");
|
|
|
|
offset = dissect_pn_uint16(tvb, offset, pinfo, tree, hf_pn_dcp_blockqualifier, &BlockQualifier);
|
|
proto_item_append_text(block_item, ", BlockQualifier: %s",
|
|
val_to_str(BlockQualifier, pn_dcp_BlockQualifier, "reserved"));
|
|
block_length -= 2;
|
|
|
|
break;
|
|
default:
|
|
offset = dissect_pn_undecoded(tvb, offset, pinfo, tree, block_length);
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
/* dissect the "deviceinitaitve" suboption */
|
|
static int
|
|
dissect_PNDCP_Suboption_DeviceInitiative(tvbuff_t *tvb, int offset, packet_info *pinfo,
|
|
proto_tree *tree, proto_item *block_item, proto_item *dcp_item,
|
|
guint8 service_id, gboolean is_response)
|
|
{
|
|
guint8 suboption;
|
|
guint16 block_length;
|
|
guint16 block_info;
|
|
guint16 block_qualifier;
|
|
guint16 value;
|
|
|
|
|
|
offset = dissect_pn_uint8(tvb, offset, pinfo, tree, hf_pn_dcp_suboption_deviceinitiative, &suboption);
|
|
offset = dissect_pn_uint16(tvb, offset, pinfo, tree, hf_pn_dcp_block_length, &block_length);
|
|
|
|
pn_append_info(pinfo, dcp_item, ", DeviceInitiative");
|
|
proto_item_append_text(block_item, "DeviceInitiative/DeviceInitiative");
|
|
|
|
/* BlockInfo? */
|
|
if ( ((service_id == PNDCP_SERVICE_ID_IDENTIFY) && is_response) ||
|
|
((service_id == PNDCP_SERVICE_ID_HELLO) && !is_response) ||
|
|
((service_id == PNDCP_SERVICE_ID_GET) && is_response)) {
|
|
offset = dissect_pn_uint16(tvb, offset, pinfo, tree, hf_pn_dcp_block_info, &block_info);
|
|
proto_item_append_text(block_item, ", BlockInfo: %s",
|
|
val_to_str(block_info, pn_dcp_block_info, "Unknown"));
|
|
block_length -= 2;
|
|
}
|
|
|
|
/* BlockQualifier? */
|
|
if ( (service_id == PNDCP_SERVICE_ID_SET) && !is_response) {
|
|
offset = dissect_pn_uint16(tvb, offset, pinfo, tree, hf_pn_dcp_block_qualifier, &block_qualifier);
|
|
proto_item_append_text(block_item, ", BlockQualifier: %s",
|
|
val_to_str(block_qualifier, pn_dcp_block_qualifier, "Unknown"));
|
|
block_length -= 2;
|
|
}
|
|
|
|
/* DeviceInitiativeValue */
|
|
offset = dissect_pn_uint16(tvb, offset, pinfo, tree, hf_pn_dcp_deviceinitiative_value, &value);
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
/* dissect the "all" suboption */
|
|
static int
|
|
dissect_PNDCP_Suboption_All(tvbuff_t *tvb, int offset, packet_info *pinfo,
|
|
proto_tree *tree, proto_item *block_item, proto_item *dcp_item,
|
|
guint8 service_id _U_, gboolean is_response _U_)
|
|
{
|
|
guint8 suboption;
|
|
guint16 block_length;
|
|
|
|
|
|
offset = dissect_pn_uint8(tvb, offset, pinfo, tree, hf_pn_dcp_suboption_all, &suboption);
|
|
offset = dissect_pn_uint16(tvb, offset, pinfo, tree, hf_pn_dcp_block_length, &block_length);
|
|
|
|
switch (suboption) {
|
|
case 255: /* All */
|
|
pn_append_info(pinfo, dcp_item, ", All");
|
|
proto_item_append_text(block_item, "All/All");
|
|
break;
|
|
default:
|
|
offset = dissect_pn_undecoded(tvb, offset, pinfo, tree, block_length);
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
/* dissect the "manufacturer" suboption */
|
|
static int
|
|
dissect_PNDCP_Suboption_Manuf(tvbuff_t *tvb, int offset, packet_info *pinfo,
|
|
proto_tree *tree, proto_item *block_item, proto_item *dcp_item,
|
|
guint8 service_id _U_, gboolean is_response _U_)
|
|
{
|
|
guint8 suboption;
|
|
guint16 block_length;
|
|
|
|
|
|
offset = dissect_pn_uint8( tvb, offset, pinfo, tree, hf_pn_dcp_suboption_manuf, &suboption);
|
|
offset = dissect_pn_uint16(tvb, offset, pinfo, tree, hf_pn_dcp_block_length, &block_length);
|
|
|
|
switch (suboption) {
|
|
default:
|
|
pn_append_info(pinfo, dcp_item, ", Manufacturer Specific");
|
|
proto_item_append_text(block_item, "Manufacturer Specific");
|
|
offset = dissect_pn_undecoded(tvb, offset, pinfo, tree, block_length);
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
/* dissect one DCP block */
|
|
static int
|
|
dissect_PNDCP_Block(tvbuff_t *tvb, int offset, packet_info *pinfo,
|
|
proto_tree *tree, proto_item *dcp_item,
|
|
guint8 service_id, gboolean is_response)
|
|
{
|
|
guint8 option;
|
|
proto_item *block_item;
|
|
proto_tree *block_tree;
|
|
int ori_offset = offset;
|
|
|
|
/* subtree for block */
|
|
block_item = proto_tree_add_none_format(tree, hf_pn_dcp_block,
|
|
tvb, offset, 0, "Block: ");
|
|
block_tree = proto_item_add_subtree(block_item, ett_pn_dcp_block);
|
|
|
|
|
|
offset = dissect_pn_uint8(tvb, offset, pinfo, block_tree, hf_pn_dcp_option, &option);
|
|
|
|
switch (option) {
|
|
case PNDCP_OPTION_IP:
|
|
offset = dissect_PNDCP_Suboption_IP(tvb, offset, pinfo, block_tree, block_item, dcp_item, service_id, is_response);
|
|
break;
|
|
case PNDCP_OPTION_DEVICE:
|
|
offset = dissect_PNDCP_Suboption_Device(tvb, offset, pinfo, block_tree, block_item, dcp_item, service_id, is_response);
|
|
break;
|
|
case PNDCP_OPTION_DHCP:
|
|
offset = dissect_PNDCP_Suboption_DHCP(tvb, offset, pinfo, block_tree, block_item, dcp_item, service_id, is_response);
|
|
break;
|
|
case PNDCP_OPTION_CONTROL:
|
|
offset = dissect_PNDCP_Suboption_Control(tvb, offset, pinfo, block_tree, block_item, dcp_item, service_id, is_response);
|
|
break;
|
|
case PNDCP_OPTION_DEVICEINITIATIVE:
|
|
offset = dissect_PNDCP_Suboption_DeviceInitiative(tvb, offset, pinfo, block_tree, block_item, dcp_item, service_id, is_response);
|
|
break;
|
|
case PNDCP_OPTION_ALLSELECTOR:
|
|
offset = dissect_PNDCP_Suboption_All(tvb, offset, pinfo, block_tree, block_item, dcp_item, service_id, is_response);
|
|
break;
|
|
case PNDCP_OPTION_MANUF_X80:
|
|
case PNDCP_OPTION_MANUF_X81:
|
|
default:
|
|
offset = dissect_PNDCP_Suboption_Manuf(tvb, offset, pinfo, block_tree, block_item, dcp_item, service_id, is_response);
|
|
}
|
|
|
|
proto_item_set_len(block_item, offset-ori_offset);
|
|
|
|
if ((offset-ori_offset) & 1) {
|
|
/* we have an odd number of bytes in this block, add a padding byte */
|
|
offset = dissect_pn_padding(tvb, offset, pinfo, tree, 1);
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
/* dissect a whole DCP PDU */
|
|
static void
|
|
dissect_PNDCP_PDU(tvbuff_t *tvb,
|
|
packet_info *pinfo, proto_tree *tree, proto_item *dcp_item)
|
|
{
|
|
guint8 service_id;
|
|
guint8 service_type;
|
|
guint32 xid;
|
|
guint16 response_delay;
|
|
guint16 data_length;
|
|
int offset = 0;
|
|
gchar *xid_str;
|
|
gboolean is_response = FALSE;
|
|
|
|
|
|
offset = dissect_pn_uint8 (tvb, offset, pinfo, tree, hf_pn_dcp_service_id, &service_id);
|
|
offset = dissect_pn_uint8 (tvb, offset, pinfo, tree, hf_pn_dcp_service_type, &service_type);
|
|
offset = dissect_pn_uint32(tvb, offset, pinfo, tree, hf_pn_dcp_xid, &xid);
|
|
if (service_id == PNDCP_SERVICE_ID_IDENTIFY && service_type == PNDCP_SERVICE_TYPE_REQUEST) {
|
|
/* multicast header */
|
|
offset = dissect_pn_uint16(tvb, offset, pinfo, tree, hf_pn_dcp_response_delay, &response_delay);
|
|
} else {
|
|
/* unicast header */
|
|
offset = dissect_pn_uint16(tvb, offset, pinfo, tree, hf_pn_dcp_reserved16, NULL);
|
|
}
|
|
offset = dissect_pn_uint16(tvb, offset, pinfo, tree, hf_pn_dcp_data_length, &data_length);
|
|
|
|
switch (service_id) {
|
|
case PNDCP_SERVICE_ID_GET:
|
|
pn_append_info(pinfo, dcp_item, "Get");
|
|
break;
|
|
case PNDCP_SERVICE_ID_SET:
|
|
pn_append_info(pinfo, dcp_item, "Set");
|
|
break;
|
|
case PNDCP_SERVICE_ID_IDENTIFY:
|
|
pn_append_info(pinfo, dcp_item, "Ident");
|
|
break;
|
|
case PNDCP_SERVICE_ID_HELLO:
|
|
pn_append_info(pinfo, dcp_item, "Hello");
|
|
break;
|
|
default:
|
|
dissect_pn_undecoded(tvb, offset, pinfo, tree, tvb_captured_length_remaining(tvb, offset));
|
|
return;
|
|
}
|
|
|
|
switch (service_type) {
|
|
case PNDCP_SERVICE_TYPE_REQUEST:
|
|
pn_append_info(pinfo, dcp_item, " Req");
|
|
break;
|
|
case PNDCP_SERVICE_TYPE_RESPONSE_SUCCESS:
|
|
pn_append_info(pinfo, dcp_item, " Ok ");
|
|
is_response = TRUE;
|
|
break;
|
|
case PNDCP_SERVICE_TYPE_RESPONSE_UNSUPPORTED:
|
|
pn_append_info(pinfo, dcp_item, " unsupported");
|
|
is_response = TRUE;
|
|
break;
|
|
default:
|
|
dissect_pn_undecoded(tvb, offset, pinfo, tree, tvb_captured_length_remaining(tvb, offset));
|
|
return;
|
|
}
|
|
|
|
xid_str = wmem_strdup_printf(wmem_packet_scope(), ", Xid:0x%x", xid);
|
|
pn_append_info(pinfo, dcp_item, xid_str);
|
|
|
|
/* dissect a number of blocks (depending on the remaining length) */
|
|
while(data_length) {
|
|
int ori_offset = offset;
|
|
|
|
if (service_id == PNDCP_SERVICE_ID_GET && service_type == PNDCP_SERVICE_TYPE_REQUEST) {
|
|
/* Selectors */
|
|
offset = dissect_PNDCP_Option(tvb, offset, pinfo,
|
|
tree, dcp_item, hf_pn_dcp_option, TRUE /* append_col */);
|
|
} else {
|
|
offset = dissect_PNDCP_Block(tvb, offset, pinfo, tree, dcp_item, service_id, is_response);
|
|
}
|
|
/* prevent an infinite loop */
|
|
if (offset <= ori_offset || data_length < (offset - ori_offset)) {
|
|
THROW(ReportedBoundsError);
|
|
}
|
|
data_length -= (offset - ori_offset);
|
|
}
|
|
}
|
|
|
|
|
|
/* possibly dissect a PN-RT packet (frame ID must be in the appropriate range) */
|
|
static gboolean
|
|
dissect_PNDCP_Data_heur(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
|
|
void *data)
|
|
{
|
|
/* the tvb will NOT contain the frame_id here, so get it from dissection data! */
|
|
guint16 u16FrameID = GPOINTER_TO_UINT(data);
|
|
proto_item *item;
|
|
proto_tree *dcp_tree;
|
|
|
|
|
|
/* frame id must be in valid range (acyclic Real-Time, DCP) */
|
|
if (u16FrameID < FRAME_ID_DCP_HELLO || u16FrameID > FRAME_ID_DCP_IDENT_RES) {
|
|
/* we are not interested in this packet */
|
|
return FALSE;
|
|
}
|
|
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "PN-DCP");
|
|
col_clear(pinfo->cinfo, COL_INFO);
|
|
|
|
/* subtree for DCP */
|
|
item = proto_tree_add_protocol_format(tree, proto_pn_dcp, tvb, 0, tvb_get_ntohs(tvb, 8) + 10,
|
|
"PROFINET DCP, ");
|
|
dcp_tree = proto_item_add_subtree(item, ett_pn_dcp);
|
|
|
|
/* dissect this PDU */
|
|
dissect_PNDCP_PDU(tvb, pinfo, dcp_tree, item);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
void
|
|
proto_register_pn_dcp (void)
|
|
{
|
|
static hf_register_info hf[] = {
|
|
{ &hf_pn_dcp_service_id,
|
|
{ "ServiceID", "pn_dcp.service_id",
|
|
FT_UINT8, BASE_DEC, VALS(pn_dcp_service_id), 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_pn_dcp_service_type,
|
|
{ "ServiceType", "pn_dcp.service_type",
|
|
FT_UINT8, BASE_DEC, VALS(pn_dcp_service_type), 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_pn_dcp_xid,
|
|
{ "Xid", "pn_dcp.xid",
|
|
FT_UINT32, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_pn_dcp_reserved8,
|
|
{ "Reserved", "pn_dcp.reserved8",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_pn_dcp_reserved16,
|
|
{ "Reserved", "pn_dcp.reserved16",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_pn_dcp_response_delay,
|
|
{ "ResponseDelay", "pn_dcp.response_delay",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_pn_dcp_data_length,
|
|
{ "DCPDataLength", "pn_dcp.data_length",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_pn_dcp_block_length,
|
|
{ "DCPBlockLength", "pn_dcp.block_length",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_pn_dcp_option,
|
|
{ "Option", "pn_dcp.option",
|
|
FT_UINT8, BASE_DEC, VALS(pn_dcp_option), 0x0,
|
|
NULL, HFILL }},
|
|
|
|
#if 0
|
|
{ &hf_pn_dcp_suboption,
|
|
{ "Suboption", "pn_dcp.suboption",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
#endif
|
|
|
|
{ &hf_pn_dcp_block_error,
|
|
{ "BlockError", "pn_dcp.block_error",
|
|
FT_UINT8, BASE_DEC, VALS(pn_dcp_block_error), 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_pn_dcp_block,
|
|
{ "Block", "pn_dcp.block",
|
|
FT_NONE, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_pn_dcp_block_info,
|
|
{ "BlockInfo", "pn_dcp.block_info",
|
|
FT_UINT16, BASE_DEC, VALS(pn_dcp_block_info), 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_pn_dcp_block_qualifier,
|
|
{ "BlockQualifier", "pn_dcp.block_qualifier",
|
|
FT_UINT16, BASE_DEC, VALS(pn_dcp_block_qualifier), 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_pn_dcp_blockqualifier_r2f,
|
|
{ "BlockQualifier: ResettoFactory", "pn_dcp.block_qualifier_reset",
|
|
FT_UINT16, BASE_DEC, VALS(pn_dcp_BlockQualifier), 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_pn_dcp_blockqualifier,
|
|
{ "BlockQualifier: ResetFactorySettings", "pn_dcp.block_qualifier_reset",
|
|
FT_UINT16, BASE_DEC, VALS(pn_dcp_suboption_other), 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_pn_dcp_suboption_ip,
|
|
{ "Suboption", "pn_dcp.suboption_ip",
|
|
FT_UINT8, BASE_DEC, VALS(pn_dcp_suboption_ip), 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_pn_dcp_suboption_ip_block_info,
|
|
{ "BlockInfo", "pn_dcp.suboption_ip_block_info",
|
|
FT_UINT16, BASE_DEC, VALS(pn_dcp_suboption_ip_block_info), 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_pn_dcp_suboption_ip_ip,
|
|
{ "IPaddress", "pn_dcp.subobtion_ip_ip",
|
|
FT_IPv4, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_pn_dcp_suboption_ip_subnetmask,
|
|
{ "Subnetmask", "pn_dcp.subobtion_ip_subnetmask",
|
|
FT_IPv4, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_pn_dcp_suboption_ip_standard_gateway,
|
|
{ "StandardGateway", "pn_dcp.suboption_ip_standard_gateway",
|
|
FT_IPv4, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_pn_dcp_suboption_device,
|
|
{ "Suboption", "pn_dcp.suboption_device",
|
|
FT_UINT8, BASE_DEC, VALS(pn_dcp_suboption_device), 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_pn_dcp_suboption_device_typeofstation,
|
|
{ "DeviceVendorValue", "pn_dcp.suboption_device_devicevendorvalue",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_pn_dcp_suboption_device_nameofstation,
|
|
{ "NameOfStation", "pn_dcp.suboption_device_nameofstation",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_pn_dcp_suboption_vendor_id,
|
|
{ "VendorID", "pn_dcp.suboption_vendor_id",
|
|
FT_UINT16, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_pn_dcp_suboption_device_id,
|
|
{ "DeviceID", "pn_dcp.suboption_device_id",
|
|
FT_UINT16, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_pn_dcp_suboption_device_role,
|
|
{ "DeviceRoleDetails", "pn_dcp.suboption_device_role",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_pn_dcp_suboption_device_aliasname,
|
|
{ "AliasName", "pn_dcp.suboption_device_aliasname",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_pn_dcp_suboption_device_instance_high,
|
|
{ "DeviceInstanceHigh", "pn_dcp.suboption_device_instance",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_pn_dcp_suboption_device_instance_low,
|
|
{ "DeviceInstanceLow", "pn_dcp.suboption_device_instance",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_pn_dcp_suboption_device_oem_ven_id,
|
|
{ "OEMVendorID", "pn_dcp.suboption_device_oem_ven_id",
|
|
FT_UINT16, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_pn_dcp_suboption_device_oem_dev_id,
|
|
{ "OEMDeviceID", "pn_dcp.suboption_device_oem_dev_id",
|
|
FT_UINT16, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_pn_dcp_suboption_dhcp,
|
|
{ "Suboption", "pn_dcp.suboption_dhcp",
|
|
FT_UINT8, BASE_DEC, VALS(pn_dcp_suboption_dhcp), 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_pn_dcp_suboption_dhcp_device_id,
|
|
{ "Device ID", "pn_dcp.suboption_dhcp_device_id",
|
|
FT_BYTES, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_pn_dcp_suboption_control,
|
|
{ "Suboption", "pn_dcp.suboption_control",
|
|
FT_UINT8, BASE_DEC, VALS(pn_dcp_suboption_control), 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_pn_dcp_suboption_control_response,
|
|
{ "Response", "pn_dcp.suboption_control_response",
|
|
FT_UINT8, BASE_DEC, VALS(pn_dcp_option), 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_pn_dcp_suboption_deviceinitiative,
|
|
{ "Suboption", "pn_dcp.suboption_deviceinitiative",
|
|
FT_UINT8, BASE_DEC, VALS(pn_dcp_suboption_deviceinitiative), 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_pn_dcp_deviceinitiative_value,
|
|
{ "DeviceInitiativeValue", "pn_dcp.deviceinitiative_value",
|
|
FT_UINT16, BASE_DEC, VALS(pn_dcp_deviceinitiative_value), 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_pn_dcp_suboption_all,
|
|
{ "Suboption", "pn_dcp.suboption_all",
|
|
FT_UINT8, BASE_DEC, VALS(pn_dcp_suboption_all), 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_pn_dcp_suboption_manuf,
|
|
{ "Suboption", "pn_dcp.suboption_manuf",
|
|
FT_UINT8, BASE_DEC, VALS(pn_dcp_suboption_manuf), 0x0,
|
|
NULL, HFILL }},
|
|
|
|
};
|
|
|
|
static gint *ett[] = {
|
|
&ett_pn_dcp,
|
|
&ett_pn_dcp_block
|
|
};
|
|
|
|
static ei_register_info ei[] = {
|
|
{ &ei_pn_dcp_block_error_unknown, { "pn_dcp.block_error.unknown", PI_RESPONSE_CODE, PI_CHAT, "Unknown", EXPFILL }},
|
|
{ &ei_pn_dcp_ip_conflict, { "pn_dcp.ip_conflict", PI_RESPONSE_CODE, PI_NOTE, "IP address conflict detected!", EXPFILL }},
|
|
};
|
|
|
|
expert_module_t* expert_pn_dcp;
|
|
|
|
proto_pn_dcp = proto_register_protocol ("PROFINET DCP", "PN-DCP", "pn_dcp");
|
|
proto_register_field_array (proto_pn_dcp, hf, array_length (hf));
|
|
proto_register_subtree_array (ett, array_length (ett));
|
|
expert_pn_dcp = expert_register_protocol(proto_pn_dcp);
|
|
expert_register_field_array(expert_pn_dcp, ei, array_length(ei));
|
|
}
|
|
|
|
void
|
|
proto_reg_handoff_pn_dcp (void)
|
|
{
|
|
/* register ourself as an heuristic pn-rt payload dissector */
|
|
heur_dissector_add("pn_rt", dissect_PNDCP_Data_heur, "PROFINET DCP IO", "pn_dcp_pn_rt", proto_pn_dcp, HEURISTIC_ENABLE);
|
|
}
|
|
|
|
/*
|
|
* Editor modelines - http://www.wireshark.org/tools/modelines.html
|
|
*
|
|
* Local variables:
|
|
* c-basic-offset: 4
|
|
* tab-width: 8
|
|
* indent-tabs-mode: nil
|
|
* End:
|
|
*
|
|
* vi: set shiftwidth=4 tabstop=8 expandtab:
|
|
* :indentSize=4:tabSize=8:noTabs=true:
|
|
*/
|