osmith
/
wireshark
forked from osmocom/wireshark
1
0
Fork 0
Code Pull Requests Releases Wiki Activity
wireshark/packet-enip.c

2667 lines
102 KiB
C
Raw Blame History

/* packet-enip.c
* Routines for EtherNet/IP (Industrial Protocol) dissection
* EtherNet/IP Home: www.odva.org
*
* Copyright 2003-2004
* Magnus Hansson <mah@hms.se>
* Joakim Wiberg <jow@hms.se>
*
* $Id: packet-enip.c,v 1.10 2004/02/25 09:31:05 guy Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@ethereal.com>
* Copyright 1998 Gerald Combs
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <glib.h>
#ifdef NEED_SNPRINTF_H
# include "snprintf.h"
#endif
#include <epan/packet.h>
#include <prefs.h>
#include "packet-tcp.h"
/* Defines */
#define ENIP_ENCAP_PORT 44818 /* EtherNet/IP located on port 44818 */
#define ENIP_IO_PORT 2222 /* EtherNet/IP IO located on port 2222 */
/* return codes of function classifying packets as query/response */
#define REQUEST_PACKET 0
#define RESPONSE_PACKET 1
#define CANNOT_CLASSIFY 2
/* CIP Encapsulation function codes */
#define NOP 0x0000
#define LIST_SERVICES 0x0004
#define LIST_IDENTITY 0x0063
#define LIST_INTERFACES 0x0064
#define REGISTER_SESSION 0x0065
#define UNREGISTER_SESSION 0x0066
#define SEND_RR_DATA 0x006F
#define SEND_UNIT_DATA 0x0070
#define INDICATE_STATUS 0x0072
#define CANCEL 0x0073
/* CIP Encapsulation status codes */
#define SUCCESS 0x0000
#define INVALID_CMD 0x0001
#define NO_RESOURCES 0x0002
#define INCORRECT_DATA 0x0003
#define INVALID_SESSION 0x0064
#define INVALID_LENGTH 0x0065
#define UNSUPPORTED_PROT_REV 0x0069
/* CIP Common Data Format Type IDs */
#define CDF_NULL 0x0000
#define LIST_IDENTITY_RESP 0x000C
#define CONNECTION_BASED 0x00A1
#define CONNECTION_TRANSPORT 0x00B1
#define UNCONNECTED_MSG 0x00B2
#define LIST_SERVICES_RESP 0x0100
#define SOCK_ADR_INFO_OT 0x8000
#define SOCK_ADR_INFO_TO 0x8001
#define SEQ_ADDRESS 0x8002
/* CIP Service Codes */
#define SC_GET_ATT_ALL 0x01
#define SC_SET_ATT_ALL 0x02
#define SC_GET_ATT_LIST 0x03
#define SC_SET_ATT_LIST 0x04
#define SC_RESET 0x05
#define SC_START 0x06
#define SC_STOP 0x07
#define SC_CREATE 0x08
#define SC_DELETE 0x09
#define SC_MULT_SERV_PACK 0x0A
#define SC_APPLY_ATTRIBUTES 0x0D
#define SC_GET_ATT_SINGLE 0x0E
#define SC_SET_ATT_SINGLE 0x10
#define SC_FIND_NEXT_OBJ_INST 0x11
#define SC_RESTOR 0x15
#define SC_SAVE 0x16
#define SC_NO_OP 0x17
#define SC_GET_MEMBER 0x18
#define SC_SET_MEMBER 0x19
#define SC_FWD_CLOSE 0x4E
#define SC_UNCON_SEND 0x52
#define SC_FWD_OPEN 0x54
/* CIP Genral status codes */
#define CI_GRC_SUCCESS 0x00
#define CI_GRC_FAILURE 0x01
#define CI_GRC_NO_RESOURCE 0x02
#define CI_GRC_BAD_DATA 0x03
#define CI_GRC_BAD_PATH 0x04
#define CI_GRC_BAD_CLASS_INSTANCE 0x05
#define CI_GRC_PARTIAL_DATA 0x06
#define CI_GRC_CONN_LOST 0x07
#define CI_GRC_BAD_SERVICE 0x08
#define CI_GRC_BAD_ATTR_DATA 0x09
#define CI_GRC_ATTR_LIST_ERROR 0x0A
#define CI_GRC_ALREADY_IN_MODE 0x0B
#define CI_GRC_BAD_OBJ_MODE 0x0C
#define CI_GRC_OBJ_ALREADY_EXISTS 0x0D
#define CI_GRC_ATTR_NOT_SETTABLE 0x0E
#define CI_GRC_PERMISSION_DENIED 0x0F
#define CI_GRC_DEV_IN_WRONG_STATE 0x10
#define CI_GRC_REPLY_DATA_TOO_LARGE 0x11
#define CI_GRC_FRAGMENT_PRIMITIVE 0x12
#define CI_GRC_CONFIG_TOO_SMALL 0x13
#define CI_GRC_UNDEFINED_ATTR 0x14
#define CI_GRC_CONFIG_TOO_BIG 0x15
#define CI_GRC_OBJ_DOES_NOT_EXIST 0x16
#define CI_GRC_NO_FRAGMENTATION 0x17
#define CI_GRC_DATA_NOT_SAVED 0x18
#define CI_GRC_DATA_WRITE_FAILURE 0x19
#define CI_GRC_REQUEST_TOO_LARGE 0x1A
#define CI_GRC_RESPONSE_TOO_LARGE 0x1B
#define CI_GRC_MISSING_LIST_DATA 0x1C
#define CI_GRC_INVALID_LIST_STATUS 0x1D
#define CI_GRC_SERVICE_ERROR 0x1E
#define CI_GRC_CONN_RELATED_FAILURE 0x1F
#define CI_GRC_INVALID_PARAMETER 0x20
#define CI_GRC_WRITE_ONCE_FAILURE 0x21
#define CI_GRC_INVALID_REPLY 0x22
#define CI_GRC_BAD_KEY_IN_PATH 0x25
#define CI_GRC_BAD_PATH_SIZE 0x26
#define CI_GRC_UNEXPECTED_ATTR 0x27
#define CI_GRC_INVALID_MEMBER 0x28
#define CI_GRC_MEMBER_NOT_SETTABLE 0x29
#define CI_GRC_STILL_PROCESSING 0xFF
/* IOI Path types */
#define CI_SEGMENT_TYPE_MASK 0xE0
#define CI_PATH_SEGMENT 0x00
#define CI_LOGICAL_SEGMENT 0x20
#define CI_NETWORK_SEGMENT 0x40
#define CI_SYMBOLIC_SEGMENT 0x60
#define CI_DATA_SEGMENT 0x80
#define CI_LOGICAL_SEG_TYPE_MASK 0x1C
#define CI_LOGICAL_SEG_CLASS_ID 0x00
#define CI_LOGICAL_SEG_INST_ID 0x04
#define CI_LOGICAL_SEG_MBR_ID 0x08
#define CI_LOGICAL_SEG_CON_POINT 0x0C
#define CI_LOGICAL_SEG_ATTR_ID 0x10
#define CI_LOGICAL_SEG_SPECIAL 0x14
#define CI_LOGICAL_SEG_SERV_ID 0x18
#define CI_LOGICAL_SEG_RES_1 0x1C
#define CI_LOGICAL_SEG_FORMAT_MASK 0x03
#define CI_LOGICAL_SEG_8_BIT 0x00
#define CI_LOGICAL_SEG_16_BIT 0x01
#define CI_LOGICAL_SEG_32_BIT 0x02
#define CI_LOGICAL_SEG_RES_2 0x03
#define CI_LOGICAL_SEG_E_KEY 0x00
#define CI_E_KEY_FORMAT_VAL 0x04
#define CI_DATA_SEG_SIMPLE 0x80
#define CI_DATA_SEG_SYMBOL 0x91
#define CI_NETWORK_SEG_TYPE_MASK 0x07
#define CI_NETWORK_SEG_SCHEDULE 0x01
#define CI_NETWORK_SEG_FIXED_TAG 0x02
#define CI_NETWORK_SEG_PROD_INHI 0x03
/* Device Profile:s */
#define DP_GEN_DEV 0x00
#define DP_AC_DRIVE 0x02
#define DP_MOTOR_OVERLOAD 0x03
#define DP_LIMIT_SWITCH 0x04
#define DP_IND_PROX_SWITCH 0x05
#define DP_PHOTO_SENSOR 0x06
#define DP_GENP_DISC_IO 0x07
#define DP_RESOLVER 0x09
#define DP_COM_ADAPTER 0x0C
#define DP_POS_CNT 0x10
#define DP_DC_DRIVE 0x13
#define DP_CONTACTOR 0x15
#define DP_MOTOR_STARTER 0x16
#define DP_SOFT_START 0x17
#define DP_HMI 0x18
#define DP_MASS_FLOW_CNT 0x1A
#define DP_PNEUM_VALVE 0x1B
#define DP_VACUUM_PRES_GAUGE 0x1C
/* Initialize the protocol and registered fields */
static int proto_cipencap = -1;
static int hf_enip_command = -1;
static int hf_enip_ifacehnd = -1;
static int hf_enip_cpf_typeid = -1;
static int hf_enip_ucm_sc = -1;
static int hf_enip_ucm_rr = -1;
static int hf_enip_ucm_path = -1;
static int hf_enip_ucm_genstat = -1;
static int hf_enip_cpf_lir_sinfamily = -1;
static int hf_enip_cpf_lir_sinport = -1;
static int hf_enip_cpf_lir_sinaddr = -1;
static int hf_enip_cpf_lir_sinzero = -1;
static int hf_enip_cpf_lir_devtype = -1;
static int hf_enip_cpf_lir_prodcode = -1;
static int hf_enip_cpf_lir_status = -1;
static int hf_enip_cpf_lir_sernbr = -1;
static int hf_enip_cpf_lir_namelength = -1;
static int hf_enip_cpf_lir_name = -1;
static int hf_enip_cpf_lir_state = -1;
static int hf_enip_cpf_sat_connid = -1;
static int hf_enip_cpf_sat_seqnum = -1;
static int hf_enip_vendors = -1;
static int hf_enip_ucm_fwo_comp = -1;
static int hf_enip_ucm_fwo_mrev = -1;
static int hf_enip_ucm_fwo_con_size = -1;
static int hf_enip_ucm_fwo_fixed_var = -1;
static int hf_enip_ucm_fwo_prio = -1;
static int hf_enip_ucm_fwo_typ = -1;
static int hf_enip_ucm_fwo_own = -1;
static int hf_enip_ucm_fwo_dir = -1;
static int hf_enip_ucm_fwo_trigg = -1;
static int hf_enip_ucm_fwo_class = -1;
static int hf_enip_cpf_lsr_tcp = -1;
static int hf_enip_cpf_lsr_udp = -1;
/* Initialize the subtree pointers */
static gint ett_cipencap = -1;
static gint ett_cip = -1;
static gint ett_cpf = -1;
static gint ett_path = -1;
static gint ett_ekey_path = -1;
static gint ett_cia_path = -1;
static gint ett_data_seg = -1;
static gint ett_cipencaph = -1;
static gint ett_csf = -1;
static gint ett_rrsc = -1;
static gint ett_sockadd = -1;
static gint ett_mcsc = -1;
static gint ett_ncp = -1;
static gint ett_lsrcf = -1;
static gint ett_mes_req = -1;
static gint ett_cmd_data = -1;
static gint ett_port_path = -1;
static gint ett_mult_ser = -1;
static gboolean cipencap_desegment = TRUE;
/* Translate function to string - Encapsulation commands */
static const value_string encap_cmd_vals[] = {
{ NOP, "NOP" },
{ LIST_SERVICES, "List Services" },
{ LIST_IDENTITY, "List Identity" },
{ LIST_INTERFACES, "List Interfaces" },
{ REGISTER_SESSION, "Register Session" },
{ UNREGISTER_SESSION,"Unregister Session" },
{ SEND_RR_DATA, "Send RR Data" },
{ SEND_UNIT_DATA, "Send Unit Data" },
{ INDICATE_STATUS, "Indicate Status" },
{ CANCEL, "Cancel" },
{ 0, NULL }
};
/* Translate function to string - Encapsulation status */
static const value_string encap_status_vals[] = {
{ SUCCESS, "Success" },
{ INVALID_CMD, "Invalid Command" },
{ NO_RESOURCES, "No Memory Resources" },
{ INCORRECT_DATA, "Incorrect Data" },
{ INVALID_SESSION, "Invalid Session Handle" },
{ INVALID_LENGTH, "Invalid Length" },
{ UNSUPPORTED_PROT_REV, "Unsupported Protocol Revision" },
{ 0, NULL }
};
/* Translate function to Common data format values */
static const value_string cdf_type_vals[] = {
{ CDF_NULL, "Null Address Item" },
{ LIST_IDENTITY_RESP, "List Identity Response" },
{ CONNECTION_BASED, "Connected Address Item" },
{ CONNECTION_TRANSPORT, "Connected Data Item" },
{ UNCONNECTED_MSG, "Unconnected Data Item" },
{ LIST_SERVICES_RESP, "List Services Response" },
{ SOCK_ADR_INFO_OT, "Socket Address Info O->T" },
{ SOCK_ADR_INFO_TO, "Socket Address Info T->O" },
{ SEQ_ADDRESS, "Sequenced Address Item" },
{ 0, NULL }
};
/* Translate function to string - CIP Service codes */
static const value_string encap_sc_vals[] = {
{ SC_GET_ATT_ALL, "Get Attribute All" },
{ SC_SET_ATT_ALL, "Set Attribute All" },
{ SC_GET_ATT_LIST, "Get Attribute List" },
{ SC_SET_ATT_LIST, "Set Attribute List" },
{ SC_RESET, "Reset" },
{ SC_START, "Start" },
{ SC_STOP, "Stop" },
{ SC_CREATE, "Create" },
{ SC_DELETE, "Delete" },
{ SC_APPLY_ATTRIBUTES, "Apply Attributes" },
{ SC_GET_ATT_SINGLE, "Get Attribute Single" },
{ SC_SET_ATT_SINGLE, "Set Attribute Single" },
{ SC_FIND_NEXT_OBJ_INST, "Find Next Object Instance" },
{ SC_RESTOR, "Restore" },
{ SC_SAVE, "Save" },
{ SC_NO_OP, "Nop" },
{ SC_GET_MEMBER, "Get Member" },
{ SC_SET_MEMBER, "Set Member" },
{ SC_MULT_SERV_PACK, "Multiple Service Packet" },
/* Some class specific services */
{ SC_FWD_CLOSE, "Forward Close" },
{ SC_FWD_OPEN, "Forward Open" },
{ SC_UNCON_SEND, "Unconnected Send" },
{ 0, NULL }
};
/* Translate function to string - CIP Request/Response */
static const value_string encap_sc_rr[] = {
{ 0, "Request" },
{ 1, "Response" },
{ 0, NULL }
};
/* Translate function to string - Compatibility */
static const value_string enip_com_bit_vals[] = {
{ 0, "Bit Cleared" },
{ 1, "Bit Set" },
{ 0, NULL }
};
/* Translate function to string - True/False */
static const value_string enip_true_false_vals[] = {
{ 0, "False" },
{ 1, "True" },
{ 0, NULL }
};
/* Translate function to string - Connection priority */
static const value_string enip_con_prio_vals[] = {
{ 0, "Low Priority" },
{ 1, "High Priority" },
{ 2, "Scheduled" },
{ 3, "Urgent" },
{ 0, NULL }
};
/* Translate function to string - Connection size fixed or variable */
static const value_string enip_con_fw_vals[] = {
{ 0, "Fixed" },
{ 1, "Variable" },
{ 0, NULL }
};
/* Translate function to string - Connection owner */
static const value_string enip_con_owner_vals[] = {
{ 0, "Exclusive" },
{ 1, "Redundant" },
{ 0, NULL }
};
/* Translate function to string - Connection direction */
static const value_string enip_con_dir_vals[] = {
{ 0, "Client" },
{ 1, "Server" },
{ 0, NULL }
};
/* Translate function to string - Production trigger */
static const value_string enip_con_trigg_vals[] = {
{ 0, "Cyclic" },
{ 1, "Change-Of-State" },
{ 2, "Application Object" },
{ 0, NULL }
};
/* Translate function to string - Transport class */
static const value_string enip_con_class_vals[] = {
{ 0, "0" },
{ 1, "1" },
{ 2, "2" },
{ 3, "3" },
{ 0, NULL }
};
/* Translate function to string - Connection type */
static const value_string enip_con_type_vals[] = {
{ 0, "Null" },
{ 1, "Multicast" },
{ 2, "Point to Point" },
{ 3, "Reserved" },
{ 0, NULL }
};
/* Translate function to string - Timeout Multiplier */
static const value_string enip_con_time_mult_vals[] = {
{ 0, "*4" },
{ 1, "*8" },
{ 2, "*16" },
{ 3, "*32" },
{ 4, "*64" },
{ 5, "*128" },
{ 6, "*256" },
{ 7, "*512" },
{ 0, NULL }
};
/* Translate function to string - CIP General Status codes */
static const value_string encap_cip_gs_vals[] = {
{ CI_GRC_SUCCESS, "Success" },
{ CI_GRC_FAILURE, "Connection failure" },
{ CI_GRC_NO_RESOURCE, "Resource unavailable" },
{ CI_GRC_BAD_DATA, "Invalid parameter value" },
{ CI_GRC_BAD_PATH, "Path segment error" },
{ CI_GRC_BAD_CLASS_INSTANCE, "Path destination unknown" },
{ CI_GRC_PARTIAL_DATA, "Partial transfer" },
{ CI_GRC_CONN_LOST, "Connection lost" },
{ CI_GRC_BAD_SERVICE, "Service not supported" },
{ CI_GRC_BAD_ATTR_DATA, "Invalid attribute value" },
{ CI_GRC_ATTR_LIST_ERROR, "Attribute list error" },
{ CI_GRC_ALREADY_IN_MODE, "Already in requested mode/state" },
{ CI_GRC_BAD_OBJ_MODE, "Object state conflict" },
{ CI_GRC_OBJ_ALREADY_EXISTS, "Object already exists" },
{ CI_GRC_ATTR_NOT_SETTABLE, "Attribute not settable" },
{ CI_GRC_PERMISSION_DENIED, "Privilege violation" },
{ CI_GRC_DEV_IN_WRONG_STATE, "Device state conflict" },
{ CI_GRC_REPLY_DATA_TOO_LARGE,"Reply data too large" },
{ CI_GRC_FRAGMENT_PRIMITIVE, "Fragmentation of a primitive value" },
{ CI_GRC_CONFIG_TOO_SMALL, "Not enough data" },
{ CI_GRC_UNDEFINED_ATTR, "Attribute not supported" },
{ CI_GRC_CONFIG_TOO_BIG, "Too much data" },
{ CI_GRC_OBJ_DOES_NOT_EXIST, "Object does not exist" },
{ CI_GRC_NO_FRAGMENTATION, "Service fragmentation sequence not in progress" },
{ CI_GRC_DATA_NOT_SAVED, "No stored attribute data" },
{ CI_GRC_DATA_WRITE_FAILURE, "Store operation failure" },
{ CI_GRC_REQUEST_TOO_LARGE, "Routing failure, request packet too large" },
{ CI_GRC_RESPONSE_TOO_LARGE, "Routing failure, response packet too large" },
{ CI_GRC_MISSING_LIST_DATA, "Missing attribute list entry data" },
{ CI_GRC_INVALID_LIST_STATUS, "Invalid attribute value list" },
{ CI_GRC_SERVICE_ERROR, "Embedded service error" },
{ CI_GRC_CONN_RELATED_FAILURE,"Vendor specific error" },
{ CI_GRC_INVALID_PARAMETER, "Invalid parameter" },
{ CI_GRC_WRITE_ONCE_FAILURE, "Write-once value or medium already written" },
{ CI_GRC_INVALID_REPLY, "Invalid Reply Received" },
{ CI_GRC_BAD_KEY_IN_PATH, "Key Failure in path" },
{ CI_GRC_BAD_PATH_SIZE, "Path Size Invalid" },
{ CI_GRC_UNEXPECTED_ATTR, "Unexpected attribute in list" },
{ CI_GRC_INVALID_MEMBER, "Invalid Member ID" },
{ CI_GRC_MEMBER_NOT_SETTABLE, "Member not settable" },
{ 0, NULL }
};
/* Translate Vendor ID:s */
static const value_string encap_cip_vendor_vals[] = {
{ 1, "Rockwell Automation/Allen-Bradley" },
{ 5, "Rockwell Automation/Reliance Electric" },
{ 24, "ODVA Special Reserve" },
{ 26, "Festo Corporation" },
{ 40, "WAGO Corporation" },
{ 48, "Turck, Inc." },
{ 49, "Grayhill Inc." },
{ 50, "Real Time Automation (C&ID)" },
{ 52, "Numatics, Inc." },
{ 57, "Pepperl + Fuchs" },
{ 81, "IXXAT Automation GmbH" },
{ 90, "HMS Industrial Networks AB" },
{ 96, "Digital Electronics Corp" },
{ 128, "MAC Valves, Inc." },
{ 133, "Balogh T.A.G., Corporation" },
{ 170, "Pyramid Solutions, Inc." },
{ 256, "InterlinkBT LLC" },
{ 258, "Hardy Instruments, Inc." },
{ 275, "Lantronix, Inc." },
{ 283, "Hilscher GmbH" },
{ 287, "Bosch Rexroth Corporation, Indramat" },
{ 356, "Fanuc Robotics America" },
{ 553, "Control Techniques PLC-NA" },
{ 562, "Phoenix Contact" },
{ 579, "Applicom international" },
{ 588, "West Instruments Limited" },
{ 590, "Delta Computer Systems Inc." },
{ 596, "Wire-Pro, Inc." },
{ 635, "The Siemon Company" },
{ 638, "Woodhead Connectivity" },
{ 651, "Fife Corporation" },
{ 668, "Rockwell Automation/Entek IRD Intl." },
{ 678, "Cognex Corporation" },
{ 691, "Startco Engineering Ltd" },
{ 734, "Hakko Electronics Co., Ltd" },
{ 735, "Tang & Associates" },
{ 743, "Linux Network Services" },
{ 748, "DVT Corporation" },
{ 759, "FLS Automation A/S" },
{ 768, "CSIRO Mining Automation" },
{ 778, "Harting, Inc. NA" },
{ 784, "Ci Technologies Pty Ltd (for Pelamos Industries)" },
{ 796, "Siemens Energy & Automation, Inc." },
{ 798, "Tyco Electronics" },
{ 803, "ICP DAS Co., LTD" },
{ 805, "Digi International, Inc." },
{ 808, "SICK AG" },
{ 809, "Ethernet Peripherals, Inc." },
{ 812, "Process Control Corporation" },
{ 832, "Quest Technical Solutions, Inc." },
{ 841, "Panduit Corporation" },
{ 850, "Datalogic, Inc." },
{ 851, "SoftPLC Corporation" },
{ 854, "Frontline Test Equipment, Inc." },
{ 857, "RVSI" },
{ 859, "Tennessee Rand Automation" },
{ 866, "ATR Industrie-Elektronik GmbH Co." },
{ 875, "FieldServer Technologies (Div Sierra Monitor Corp)" },
{ 883, "Automa SRL" },
{ 0, NULL }
};
/* Translate Device Profile:s */
static const value_string encap_cip_devtype_vals[] = {
{ DP_GEN_DEV, "Generic Device" },
{ DP_AC_DRIVE, "AC Drive" },
{ DP_MOTOR_OVERLOAD, "Motor Overload" },
{ DP_LIMIT_SWITCH, "Limit Switch" },
{ DP_IND_PROX_SWITCH, "Inductive Proximity Switch" },
{ DP_PHOTO_SENSOR, "Photoelectric Sensor" },
{ DP_GENP_DISC_IO, "General Purpose Dicrete I/O" },
{ DP_RESOLVER, "Resolver" },
{ DP_COM_ADAPTER, "Communications Adapter" },
{ DP_POS_CNT, "Position Controller", },
{ DP_DC_DRIVE, "DC Drive" },
{ DP_CONTACTOR, "Contactor", },
{ DP_MOTOR_STARTER, "Motor Starter", },
{ DP_SOFT_START, "Soft Start", },
{ DP_HMI, "Human-Machine Interface" },
{ DP_MASS_FLOW_CNT, "Mass Flow Controller" },
{ DP_PNEUM_VALVE, "Pneumatic Valve" },
{ DP_VACUUM_PRES_GAUGE, "Vaccuum Pressure Gauge" },
{ 0, NULL }
};
/* Translate class names */
static const value_string enip_class_names_vals[] = {
{ 0x01, "Identity Object" },
{ 0x02, "Message Router" },
{ 0x03, "DeviceNet Object" },
{ 0x04, "Assembly Object" },
{ 0x05, "Connection Object" },
{ 0x06, "Connection Manager" },
{ 0x07, "Register Object" },
{ 0x08, "Discrete Input Point Object" },
{ 0x09, "Discrete Output Point Object" },
{ 0x0A, "Analog Input Point Object" },
{ 0x0B, "Analog Output Point Object" },
{ 0x0E, "Presence Sensing Object" },
{ 0x0F, "Parameter Object" },
{ 0x10, "Parameter Group Object" },
{ 0x12, "Group Object" },
{ 0x1D, "Discrete Input Group Object" },
{ 0x1E, "Discrete Output Group Object" },
{ 0x1F, "Discrete Group Object" },
{ 0x20, "Analog Input Group Object" },
{ 0x21, "Analog Output Group Object" },
{ 0x22, "Analog Group Object" },
{ 0x23, "Position Sensor Object" },
{ 0x24, "Position Controller Supervisor Object" },
{ 0x25, "Position Controller Object" },
{ 0x26, "Block Sequencer Object" },
{ 0x27, "Command Block Object" },
{ 0x28, "Motor Data Object" },
{ 0x29, "Control Supervisor Object" },
{ 0x2A, "AC/DC Drive Object" },
{ 0x2B, "Acknowledge Handler Object" },
{ 0x2C, "Overload Object" },
{ 0x2D, "Softstart Object" },
{ 0x2E, "Selection Object" },
{ 0x30, "S-Device Supervisor Object" },
{ 0x31, "S-Analog Sensor Object" },
{ 0x32, "S-Analog Actuator Object" },
{ 0x33, "S-Single Stage Controller Object" },
{ 0x34, "S-Gas Calibration Object" },
{ 0x35, "Trip Point Object" },
{ 0xF0, "ControlNet Object" },
{ 0xF1, "ControlNet Keeper Object" },
{ 0xF2, "ControlNet Scheduling Object" },
{ 0xF3, "Connection Configuration Object" },
{ 0xF4, "Port Object" },
{ 0xF5, "TCP/IP Interface Object" },
{ 0xF6, "EtherNet Link Object" },
{ 0, NULL }
};
static proto_item*
add_byte_array_text_to_proto_tree( proto_tree *tree, tvbuff_t *tvb, gint start, gint length, const char* str )
{
const char *tmp;
char *tmp2, *tmp2start;
proto_item *pi;
int i,tmp_length,tmp2_length;
guint32 octet;
/* At least one version of Apple's C compiler/linker is buggy, causing
a complaint from the linker about the "literal C string section"
not ending with '\0' if we initialize a 16-element "char" array with
a 16-character string, the fact that initializing such an array with
such a string is perfectly legitimate ANSI C nonwithstanding, the 17th
'\0' byte in the string nonwithstanding. */
static const char my_hex_digits[16] =
{ '0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
if( ( length * 2 ) > 32 )
{
tmp_length = 16;
tmp2_length = 36;
}
else
{
tmp_length = length;
tmp2_length = ( length * 2 ) + 1;
}
tmp = tvb_get_ptr( tvb, start, tmp_length );
tmp2 = (char*)g_malloc( tmp2_length );
tmp2start = tmp2;
for( i = 0; i < tmp_length; i++ )
{
octet = tmp[i];
octet >>= 4;
*tmp2++ = my_hex_digits[octet&0xF];
octet = tmp[i];
*tmp2++ = my_hex_digits[octet&0xF];
}
if( tmp_length != length )
{
*tmp2++ = '.';
*tmp2++ = '.';
*tmp2++ = '.';
}
*tmp2 = 0;
pi = proto_tree_add_text( tree, tvb, start, length, "%s%s", str, tmp2start );
g_free( tmp2start );
return( pi );
} /* end of add_byte_array_text_to_proto_tree() */
/* Decode and add epath to tree */
static void
show_epath( tvbuff_t *tvb, proto_item *pi, int offset, int path_length )
{
int pathpos;
int temp_data;
int temp_data2;
unsigned char segment_type, temp_byte, opt_link_size;
proto_tree *path_tree, *port_tree, *net_tree;
proto_item *qi, *cia_item, *ds_item;
proto_tree *e_key_tree, *cia_tree, *ds_tree;
proto_item *mcpi, *temp_item, *port_item, *ext_link_item, *net_item;
proto_tree *mc_tree;
int seg_size, i, temp_word;
char *temp_string;
/* Create a sub tree for the epath */
path_tree = proto_item_add_subtree( pi, ett_path );
proto_tree_add_item_hidden(path_tree, hf_enip_ucm_path,
tvb, offset, path_length, TRUE );
pathpos = 0;
while( pathpos < path_length )
{
/* Get segement type */
segment_type = tvb_get_guint8( tvb, offset + pathpos );
/* Determine the segment type */
switch( segment_type & CI_SEGMENT_TYPE_MASK )
{
case CI_PATH_SEGMENT:
port_item = proto_tree_add_text( path_tree, tvb, offset + pathpos, 0, "Port Segment" );
port_tree = proto_item_add_subtree( port_item, ett_port_path );
/* Add port number */
proto_tree_add_text( port_tree, tvb, offset+pathpos, 1, "Port Identifier: %d", (segment_type & 0x0F) );
proto_item_append_text( pi, ", Port: %d", (segment_type & 0x0F) );
/* Add Extended Link Address flag */
temp_item = proto_tree_add_text( port_tree, tvb, offset+pathpos, 1, "Extended Link Address: " );
if( segment_type & 0x10 )
{
proto_item_append_text(temp_item, "TRUE");
opt_link_size = tvb_get_guint8( tvb, offset + pathpos + 1 );
proto_tree_add_text( port_tree, tvb, offset+pathpos+1, 1, "Link Address Size: %d", opt_link_size );
ext_link_item = proto_tree_add_text( port_tree, tvb, offset+pathpos+2, opt_link_size, "Link Address: " );
proto_item_append_text(pi, ", Addess: " );
/* Add extended link address */
for( i=0; i < opt_link_size; i++ )
{
temp_byte = tvb_get_guint8( tvb, offset + pathpos+2+i );
proto_item_append_text(ext_link_item, "%c", temp_byte );
proto_item_append_text(pi, "%c", temp_byte );
}
/* Pad byte */
if( opt_link_size % 2 )
{
pathpos = pathpos + 3 + opt_link_size;
proto_item_set_len(port_item, 3+opt_link_size);
}
else
{
pathpos = pathpos + 2 + opt_link_size;
proto_item_set_len(port_item, 2+opt_link_size);
}
}
else
{
proto_item_append_text(pi, ", Address: %d", tvb_get_guint8( tvb, offset + pathpos + 1 ) );
proto_item_append_text(temp_item, "FALSE");
proto_tree_add_text( port_tree, tvb, offset+pathpos+1, 1, "Link Address: %d", tvb_get_guint8( tvb, offset + pathpos + 1 ) );
proto_item_set_len(port_item, 2);
pathpos += 2;
}
break;
case CI_LOGICAL_SEGMENT:
/* Logical segment, determin the logical type */
switch( segment_type & CI_LOGICAL_SEG_TYPE_MASK )
{
case CI_LOGICAL_SEG_CLASS_ID:
/* Logical Class ID, do a format check */
if( ( segment_type & CI_LOGICAL_SEG_FORMAT_MASK ) == CI_LOGICAL_SEG_8_BIT )
{
temp_data = tvb_get_guint8( tvb, offset + pathpos + 1 );
cia_item = proto_tree_add_text( path_tree, tvb, offset + pathpos, 2, "8-Bit Logical Class Segment (0x%02X)", segment_type );
/* Create a sub tree for the class */
cia_tree = proto_item_add_subtree( cia_item, ett_cia_path );
/* Display the 8-bit class number */
proto_tree_add_text( cia_tree, tvb, offset + pathpos + 1, 1, "Class: %s (0x%02X)", val_to_str( temp_data, enip_class_names_vals , "Unknown class" ), temp_data );
temp_string = match_strval( temp_data, enip_class_names_vals );
if( temp_string )
{
proto_item_append_text(pi, "%s", temp_string );
}
else
{
proto_item_append_text(pi, "Class: 0x%02X", temp_data );
}
/* 2 bytes of path used */
pathpos += 2;
}
else if( ( segment_type & CI_LOGICAL_SEG_FORMAT_MASK ) == CI_LOGICAL_SEG_16_BIT )
{
temp_data = tvb_get_letohs( tvb, offset + pathpos + 2 );
cia_item = proto_tree_add_text( path_tree, tvb, offset + pathpos, 3, "16-Bit Logical Class Segment (0x%02X)", segment_type );
/* Create a sub tree for the class */
cia_tree = proto_item_add_subtree( cia_item, ett_cia_path );
/* Display the 16-bit class number */
proto_tree_add_text( cia_tree, tvb, offset + pathpos + 2, 2, "Class: %s (0x%04X)", val_to_str( temp_data, enip_class_names_vals , "Unknown class" ), temp_data );
temp_string = match_strval( temp_data, enip_class_names_vals );
if( temp_string )
{
proto_item_append_text(pi, "%s", temp_string );
}
else
{
proto_item_append_text(pi, "Class: 0x%04X", temp_data );
}
/* 4 bytes of path used */
pathpos += 4;
}
else if( ( segment_type & CI_LOGICAL_SEG_FORMAT_MASK ) == CI_LOGICAL_SEG_32_BIT )
{
temp_data = tvb_get_letohl( tvb, offset + pathpos + 2 );
cia_item = proto_tree_add_text( path_tree, tvb, offset + pathpos, 5, "32-Bit Logical Instance Segment (0x%02X)", segment_type );
/* Create a sub tree for the class */
cia_tree = proto_item_add_subtree( cia_item, ett_cia_path );
/* Display the 32-bit instance number */
proto_tree_add_text( cia_tree, tvb, offset + pathpos + 2, 4, "Class: %s (0x%08X)", val_to_str( temp_data, enip_class_names_vals , "Unknown class" ), temp_data );
temp_string = match_strval( temp_data, enip_class_names_vals );
if( temp_string )
{
proto_item_append_text(pi, "%s", temp_string );
}
else
{
proto_item_append_text(pi, "Class: 0x%08X", temp_data );
}
/* 6 bytes of path used */
pathpos += 6;
}
else
{
/* Unsupported logical segment format */
proto_tree_add_text( path_tree, tvb, 0, 0, "Unsupported Logical Segment Format" );
return;
}
break;
case CI_LOGICAL_SEG_INST_ID:
/* Logical Instance ID, do a format check */
if( ( segment_type & CI_LOGICAL_SEG_FORMAT_MASK ) == CI_LOGICAL_SEG_8_BIT )
{
temp_data = tvb_get_guint8( tvb, offset + pathpos + 1 );
cia_item = proto_tree_add_text( path_tree, tvb, offset + pathpos, 2, "8-Bit Logical Instance Segment (0x%02X)", segment_type );
/* Create a sub tree for the instance */
cia_tree = proto_item_add_subtree( cia_item, ett_cia_path );
/* Display the 8-bit instance number */
proto_tree_add_text( cia_tree, tvb, offset + pathpos + 1, 1, "Instance: 0x%02X", temp_data );
proto_item_append_text(pi, ", Inst: 0x%02X", temp_data );
/* 2 bytes of path used */
pathpos += 2;
}
else if( ( segment_type & CI_LOGICAL_SEG_FORMAT_MASK ) == CI_LOGICAL_SEG_16_BIT )
{
temp_data = tvb_get_letohs( tvb, offset + pathpos + 2 );
cia_item = proto_tree_add_text( path_tree, tvb, offset + pathpos, 3, "16-Bit Logical Instance Segment (0x%02X)", segment_type );
/* Create a sub tree for the instance */
cia_tree = proto_item_add_subtree( cia_item, ett_cia_path );
/* Display the 16-bit instance number */
proto_tree_add_text( cia_tree, tvb, offset + pathpos + 2, 2, "Instance: 0x%04X", temp_data );
proto_item_append_text(pi, ", Inst: 0x%04X", temp_data );
/* 4 bytes of path used */
pathpos += 4;
}
else if( ( segment_type & CI_LOGICAL_SEG_FORMAT_MASK ) == CI_LOGICAL_SEG_32_BIT )
{
temp_data = tvb_get_letohl( tvb, offset + pathpos + 2 );
cia_item = proto_tree_add_text( path_tree, tvb, offset + pathpos, 5, "32-Bit Logical Instance Segment (0x%02X)", segment_type );
/* Create a sub tree for the instance */
cia_tree = proto_item_add_subtree( cia_item, ett_cia_path );
/* Display the 16-bit instance number */
proto_tree_add_text( cia_tree, tvb, offset + pathpos + 2, 4, "Instance: 0x%08X", temp_data );
proto_item_append_text(pi, ", Inst: 0x%08X", temp_data );
/* 6 bytes of path used */
pathpos += 6;
}
else
{
/* Unsupported logical segment format */
proto_tree_add_text( path_tree, tvb, 0, 0, "Unsupported Logical Segment Format" );
return;
}
break;
case CI_LOGICAL_SEG_ATTR_ID:
/* Logical Attribute ID, do a format check */
if( ( segment_type & CI_LOGICAL_SEG_FORMAT_MASK ) == CI_LOGICAL_SEG_8_BIT )
{
temp_data = tvb_get_guint8( tvb, offset + pathpos + 1 );
cia_item = proto_tree_add_text( path_tree, tvb, offset + pathpos, 2, "8-Bit Logical Attribute Segment (0x%02X)", segment_type );
/* Create a sub tree for the attribute */
cia_tree = proto_item_add_subtree( cia_item, ett_cia_path );
/* Display the 8-bit instance number */
proto_tree_add_text( cia_tree, tvb, offset + pathpos + 1, 1, "Attribute: 0x%02X", temp_data );
proto_item_append_text(pi, ", Att: 0x%02X", temp_data );
/* 2 bytes of path used */
pathpos += 2;
}
else if( ( segment_type & CI_LOGICAL_SEG_FORMAT_MASK ) == CI_LOGICAL_SEG_16_BIT )
{
temp_data = tvb_get_letohs( tvb, offset + pathpos + 2 );
cia_item = proto_tree_add_text( path_tree, tvb, offset + pathpos, 3, "16-Bit Logical Attribute Segment (0x%02X)", segment_type );
/* Create a sub tree for the attribute */
cia_tree = proto_item_add_subtree( cia_item, ett_cia_path );
/* Display the 16-bit instance number */
proto_tree_add_text( cia_tree, tvb, offset + pathpos + 2, 2, "Attribute: 0x%04X", temp_data );
proto_item_append_text(pi, ", Att: 0x%04X", temp_data );
/* 4 bytes of path used */
pathpos += 4;
}
else if( ( segment_type & CI_LOGICAL_SEG_FORMAT_MASK ) == CI_LOGICAL_SEG_32_BIT )
{
temp_data = tvb_get_letohl( tvb, offset + pathpos + 2 );
cia_item = proto_tree_add_text( path_tree, tvb, offset + pathpos, 5, "32-Bit Logical Attribute Segment (0x%02X)", segment_type );
/* Create a sub tree for the attribute */
cia_tree = proto_item_add_subtree( cia_item, ett_cia_path );
/* Display the 16-bit instance number */
proto_tree_add_text( cia_tree, tvb, offset + pathpos + 2, 4, "Attribute: 0x%08X", temp_data );
proto_item_append_text(pi, ", Att: 0x%08X", temp_data );
/* 6 bytes of path used */
pathpos += 6;
}
else
{
/* Unsupported logical segment format */
proto_tree_add_text( path_tree, tvb, 0, 0, "Unsupported Logical Segment Format" );
return;
}
break;
case CI_LOGICAL_SEG_CON_POINT:
/* Logical Connection point , do a format check */
if( ( segment_type & CI_LOGICAL_SEG_FORMAT_MASK ) == CI_LOGICAL_SEG_8_BIT )
{
temp_data = tvb_get_guint8( tvb, offset + pathpos + 1 );
cia_item = proto_tree_add_text( path_tree, tvb, offset + pathpos, 2, "8-Bit Logical Connection Point Segment (0x%02X)", segment_type );
/* Create a sub tree for the connection point */
cia_tree = proto_item_add_subtree( cia_item, ett_cia_path );
/* Display the 8-bit instance number */
proto_tree_add_text( cia_tree, tvb, offset + pathpos + 1, 1, "Connection Point: 0x%02X", temp_data );
proto_item_append_text(pi, ", ConPnt: 0x%02X", temp_data );
/* 2 bytes of path used */
pathpos += 2;
}
else if( ( segment_type & CI_LOGICAL_SEG_FORMAT_MASK ) == CI_LOGICAL_SEG_16_BIT )
{
temp_data = tvb_get_letohs( tvb, offset + pathpos + 2 );
cia_item = proto_tree_add_text( path_tree, tvb, offset + pathpos, 3, "16-Bit Logical Connection Point Segment (0x%02X)", segment_type );
/* Create a sub tree for the connection point */
cia_tree = proto_item_add_subtree( cia_item, ett_cia_path );
/* Display the 16-bit instance number */
proto_tree_add_text( cia_tree, tvb, offset + pathpos + 2, 2, "Connection Point: 0x%04X", temp_data );
proto_item_append_text(pi, ", ConPnt: 0x%04X", temp_data );
/* 4 bytes of path used */
pathpos += 4;
}
else if( ( segment_type & CI_LOGICAL_SEG_FORMAT_MASK ) == CI_LOGICAL_SEG_32_BIT )
{
temp_data = tvb_get_letohl( tvb, offset + pathpos + 2 );
cia_item = proto_tree_add_text( path_tree, tvb, offset + pathpos, 5, "32-Bit Logical Connection Point Segment (0x%02X)", segment_type );
/* Create a sub tree for the connection point */
cia_tree = proto_item_add_subtree( cia_item, ett_cia_path );
/* Display the 16-bit instance number */
proto_tree_add_text( cia_tree, tvb, offset + pathpos + 2, 4, "Connection Point (0x%08X)", temp_data );
proto_item_append_text(pi, ", ConPnt: 0x%08X", temp_data );
/* 6 bytes of path used */
pathpos += 6;
}
else
{
/* Unsupported logical segment format */
proto_tree_add_text( path_tree, tvb, 0, 0, "Unsupported Logical Segment Format" );
return;
}
break;
case CI_LOGICAL_SEG_SPECIAL:
/* Logical Special ID, the only logical format sepcifyed is electronic key */
if( ( segment_type & CI_LOGICAL_SEG_FORMAT_MASK ) == CI_LOGICAL_SEG_E_KEY )
{
/* Get the Key Format */
temp_data = tvb_get_guint8( tvb, offset + pathpos + 1 );
if( temp_data == CI_E_KEY_FORMAT_VAL )
{
qi = proto_tree_add_text( path_tree, tvb, offset + pathpos, 10, "Electronic Key Segment (0x%02X): ",segment_type );
/* Create a sub tree for the IOI */
e_key_tree = proto_item_add_subtree( qi, ett_ekey_path );
/* Print the key type */
proto_tree_add_text( e_key_tree, tvb, offset + pathpos + 1, 1, "Key Format: 0x%02X", temp_data );
/* Get the Vendor ID */
temp_data = tvb_get_letohs( tvb, offset + pathpos + 2 );
proto_tree_add_item( e_key_tree, hf_enip_vendors, tvb, offset + pathpos + 2, 2, TRUE);
proto_item_append_text( qi, "VendorID: 0x%04X", temp_data );
/* Get Device Type */
temp_data = tvb_get_letohs( tvb, offset + pathpos + 4 );
proto_tree_add_item( e_key_tree, hf_enip_cpf_lir_devtype, tvb, offset + pathpos + 4, 2, TRUE);
proto_item_append_text( qi, ", DevTyp: 0x%04X", temp_data );
/* Product Code */
temp_data = tvb_get_letohs( tvb, offset + pathpos + 6 );
proto_tree_add_text( e_key_tree, tvb, offset + pathpos + 6, 2, "Product Code: 0x%04X", temp_data );
/* Major revision/Compatibility */
temp_data = tvb_get_guint8( tvb, offset + pathpos + 8 );
/* Add Major revision/Compatibility tree */
mcpi = proto_tree_add_text(e_key_tree, tvb, offset + pathpos + 8, 1, "Compatibility ");
mc_tree = proto_item_add_subtree(mcpi, ett_mcsc);
/* Add Compatibility bit info */
proto_tree_add_item(mc_tree, hf_enip_ucm_fwo_comp,
tvb, offset + pathpos + 8, 1, TRUE );
proto_item_append_text( mcpi, "%s, Major Revision: %d",
val_to_str( ( temp_data & 0x80 )>>7, enip_com_bit_vals , "" ),
temp_data & 0x7F );
/* Major revision */
proto_tree_add_item(mc_tree, hf_enip_ucm_fwo_mrev,
tvb, offset + pathpos + 8, 1, TRUE );
/* Minor revision */
temp_data2 = tvb_get_guint8( tvb, offset + pathpos + 9 );
proto_tree_add_text( e_key_tree, tvb, offset + pathpos + 9, 1, "Minor Revision: %d", temp_data2 );
proto_item_append_text( qi, ", V.%d.%d", ( temp_data & 0x7F ), temp_data2 );
/* Increment the path pointer */
pathpos += 10;
}
else
{
/* Unsupported electronic key format */
proto_tree_add_text( path_tree, tvb, 0, 0, "Unsupported Electronic Key Format" );
return;
}
}
else
{
/* Unsupported special segment format */
proto_tree_add_text( path_tree, tvb, 0, 0, "Unsupported Special Segment Format" );
return;
}
break;
default:
/* Unsupported logical segment type */
proto_tree_add_text( path_tree, tvb, 0, 0, "Unsupported Logical Segment Type" );
return;
} /* end of switch( segment_type & CI_LOGICAL_SEG_TYPE_MASK ) */
break;
case CI_DATA_SEGMENT:
/* Data segment, determin the logical type */
switch( segment_type )
{
case CI_DATA_SEG_SIMPLE:
/* Simple data segment */
ds_item = proto_tree_add_text( path_tree, tvb, offset + pathpos, 1, "Simple Data Segment (0x%02X)", segment_type );
/* Create a sub tree */
ds_tree = proto_item_add_subtree( ds_item, ett_data_seg );
/* Segment size */
seg_size = tvb_get_guint8( tvb, offset + pathpos+1 )*2;
proto_tree_add_text( ds_tree, tvb, offset + pathpos+1, 1, "Data Size: %d (words)", seg_size/2 );
/* Segment data */
if( seg_size != 0 )
{
qi = proto_tree_add_text( ds_tree, tvb, offset + pathpos+2, 0, "Data: " );
for( i=0; i < seg_size/2; i ++ )
{
temp_word = tvb_get_letohs( tvb, offset + pathpos+2+(i*2) );
proto_item_append_text(qi, " 0x%04X", temp_word );
}
proto_item_set_len(qi, seg_size);
}
proto_item_set_len( ds_item, 2 + seg_size );
pathpos = pathpos + 2 + seg_size;
break;
case CI_DATA_SEG_SYMBOL:
/* ANSI extended symbol segment */
ds_item = proto_tree_add_text( path_tree, tvb, offset + pathpos, 1, "Extended Symbol Segment (0x%02X)", segment_type );
/* Create a sub tree */
ds_tree = proto_item_add_subtree( ds_item, ett_data_seg );
/* Segment size */
seg_size = tvb_get_guint8( tvb, offset + pathpos+1 );
proto_tree_add_text( ds_tree, tvb, offset + pathpos+1, 1, "Data Size: %d", seg_size );
/* Segment data */
if( seg_size != 0 )
{
qi = proto_tree_add_text( ds_tree, tvb, offset + pathpos+2, 0, "Data: " );
for( i=0; i < seg_size; i++ )
{
temp_byte = tvb_get_guint8( tvb, offset + pathpos+2+i );
proto_item_append_text(qi, "%c", temp_byte );
}
proto_item_set_len(qi, seg_size);
if( seg_size %2 )
{
/* We have a PAD BYTE */
proto_tree_add_text( ds_tree, tvb, offset + pathpos+2+i, 1, "Pad Byte (0x%02X)",
tvb_get_guint8( tvb, offset + pathpos+2+i ) );
pathpos++;
seg_size++;
}
}
proto_item_set_len( ds_item, 2 + seg_size );
pathpos = pathpos + 2 + seg_size;
break;
default:
proto_tree_add_text( path_tree, tvb, 0, 0, "Unsupported Sub-Segment Type" );
return;
} /* End of switch sub-type */
break;
case CI_NETWORK_SEGMENT:
/* Network segment -Determine the segment sub-type */
switch( segment_type & CI_NETWORK_SEG_TYPE_MASK )
{
case CI_NETWORK_SEG_SCHEDULE:
net_item = proto_tree_add_text( path_tree, tvb, offset + pathpos, 2, "Network Segment - Schedule" );
net_tree = proto_item_add_subtree( net_item, ett_port_path );
proto_tree_add_text( net_tree, tvb, offset + pathpos + 1, 1, "Multiplier/Phase: %02X", tvb_get_guint8( tvb, offset + pathpos + 1 ) );
/* 2 bytes of path used */
pathpos += 2;
break;
case CI_NETWORK_SEG_FIXED_TAG:
net_item = proto_tree_add_text( path_tree, tvb, offset + pathpos, 2, "Network Segment - Fixed Tag" );
net_tree = proto_item_add_subtree( net_item, ett_port_path );
proto_tree_add_text( net_tree, tvb, offset + pathpos + 1, 1, "Fixed Tag: %02X", tvb_get_guint8( tvb, offset + pathpos + 1 ) );
/* 2 bytes of path used */
pathpos += 2;
break;
case CI_NETWORK_SEG_PROD_INHI:
net_item = proto_tree_add_text( path_tree, tvb, offset + pathpos, 2, "Network Segment - Production Inhibit" );
net_tree = proto_item_add_subtree( net_item, ett_port_path );
proto_tree_add_text( net_tree, tvb, offset + pathpos + 1, 1, "Production Inhibit Time: %dms", tvb_get_guint8( tvb, offset + pathpos + 1 ) );
/* 2 bytes of path used */
pathpos += 2;
break;
default:
proto_tree_add_text( path_tree, tvb, 0, 0, "Unsupported Sub-Segment Type" );
return;
} /* End of switch sub-type */
break;
default:
/* Unsupported segment type */
proto_tree_add_text( path_tree, tvb, 0, 0, "Unsupported Segment Type" );
return;
} /* end of switch( segment_type & CI_SEGMENT_TYPE_MASK ) */
} /* end of while( pathpos < path_length ) */
} /* end of show_epath() */
static void
add_cip_data( proto_tree *item_tree, tvbuff_t *tvb, int offset, int item_length, packet_info *pinfo )
{
proto_item *pi, *rrsci, *ncppi, *ar_item, *temp_item, *temp_item2;
proto_tree *temp_tree;
proto_tree *rrsci_tree;
proto_tree *ncp_tree;
proto_tree *cmd_data_tree;
int req_path_size, conn_path_size, mr_req_path_size;
int temp_data;
unsigned char gen_stat;
unsigned char add_stat_size;
unsigned char temp_byte, route_path_size;
unsigned char app_rep_size, i;
int msg_req_siz, num_services, serv_offset;
/* Add Service code & Request/Response tree */
rrsci = proto_tree_add_text(item_tree, tvb, offset, 1, "Service: ");
rrsci_tree = proto_item_add_subtree(rrsci, ett_rrsc);
/* Add Request/Response */
proto_tree_add_item(rrsci_tree, hf_enip_ucm_rr,
tvb, offset, 1, TRUE );
proto_item_append_text( rrsci, "%s (%s)",
val_to_str( ( tvb_get_guint8( tvb, offset ) & 0x7F ),
encap_sc_vals , "Unknown Service (%x)"),
val_to_str( ( tvb_get_guint8( tvb, offset ) & 0x80 )>>7,
encap_sc_rr, "") );
/* Add service to info column */
if(check_col(pinfo->cinfo, COL_INFO))
{
col_append_fstr( pinfo->cinfo, COL_INFO, ", %s",
val_to_str( ( tvb_get_guint8( tvb, offset ) & 0x7F ),
encap_sc_vals , "Unknown Service (%x)") );
}
/* Add Service code */
proto_tree_add_item(rrsci_tree, hf_enip_ucm_sc,
tvb, offset, 1, TRUE );
if( tvb_get_guint8( tvb, offset ) & 0x80 )
{
/* Response message */
/* Add general status */
gen_stat = tvb_get_guint8( tvb, offset+2 );
proto_tree_add_item(item_tree, hf_enip_ucm_genstat,
tvb, offset+2, 1, TRUE );
/* Add additional status size */
temp_data = tvb_get_guint8( tvb, offset+3 );
proto_tree_add_text( item_tree, tvb, offset+3, 1, "Additional Status Size: %d (word)", temp_data );
add_stat_size = tvb_get_guint8( tvb, offset+3 )*2;
if( add_stat_size )
{
/* Add additional status */
pi = proto_tree_add_text( item_tree, tvb, offset+4, add_stat_size, "Additional Status:" );
for( i=0; i < add_stat_size/2; i ++ )
{
proto_item_append_text( pi, " 0x%04X", tvb_get_letohs( tvb, offset+4+(i*2) ) );
}
}
/* If there is any command specific data create a sub-tree for it */
if( ( item_length-4-add_stat_size ) != 0 )
{
pi = proto_tree_add_text( item_tree, tvb, offset+4+add_stat_size, item_length-4-add_stat_size, "Command Specific data" );
cmd_data_tree = proto_item_add_subtree( pi, ett_cmd_data );
if( gen_stat == CI_GRC_SUCCESS )
{
/* Success responses */
if( ( tvb_get_guint8( tvb, offset ) & 0x7F ) == SC_FWD_OPEN )
{
/* Forward open Response (Success) */
/* Display originator to target connection ID */
temp_data = tvb_get_letohl( tvb, offset+4+add_stat_size );
proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size, 4, "O->T Network Connection ID: 0x%08X", temp_data );
/* Display target to originator connection ID */
temp_data = tvb_get_letohl( tvb, offset+4+add_stat_size+4 );
proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size+4, 4, "T->O Network Connection ID: 0x%08X", temp_data );
/* Display connection serial number */
temp_data = tvb_get_letohs( tvb, offset+4+add_stat_size+8 );
proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size+8, 2, "Connection Serial Number: 0x%04X", temp_data );
/* Display the originator vendor id */
proto_tree_add_item( cmd_data_tree, hf_enip_vendors, tvb, offset+4+add_stat_size+10, 2, TRUE);
/* Display the originator serial number */
temp_data = tvb_get_letohl( tvb, offset+4+add_stat_size+12 );
proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size+12, 4, "Originator Serial Number: 0x%08X", temp_data );
/* Display originator to target actual packet interval */
temp_data = tvb_get_letohl( tvb, offset+4+add_stat_size+16 );
proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size+16, 4, "O->T API: %dms (0x%08X)", temp_data / 1000, temp_data );
/* Display originator to target actual packet interval */
temp_data = tvb_get_letohl( tvb, offset+4+add_stat_size+20 );
proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size+20, 4, "T->O API: %dms (0x%08X)", temp_data / 1000, temp_data );
/* Display the application reply size */
app_rep_size = tvb_get_guint8( tvb, offset+4+add_stat_size+24 ) * 2;
proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size+24, 1, "Application Reply Size: %d (words)", app_rep_size / 2 );
/* Display the Reserved byte */
temp_byte = tvb_get_guint8( tvb, offset+4+add_stat_size+25 );
proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size+25, 1, "Reserved: 0x%02X", temp_byte );
if( app_rep_size != 0 )
{
/* Display application Reply data */
ar_item = proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size+26, app_rep_size, "Application Reply:" );
for( i=0; i < app_rep_size; i++ )
{
temp_byte = tvb_get_guint8( tvb, offset+4+add_stat_size+26+i );
proto_item_append_text(ar_item, " 0x%02X", temp_byte );
}
} /* End of if reply data */
} /* End of if forward open response */
else if( ( tvb_get_guint8( tvb, offset ) & 0x7F ) == SC_FWD_CLOSE )
{
/* Forward close response (Success) */
/* Display connection serial number */
temp_data = tvb_get_letohs( tvb, offset+4+add_stat_size );
proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size, 2, "Connection Serial Number: 0x%04X", temp_data );
/* Display the originator vendor id */
proto_tree_add_item( cmd_data_tree, hf_enip_vendors, tvb, offset+4+add_stat_size+2, 2, TRUE);
/* Display the originator serial number */
temp_data = tvb_get_letohl( tvb, offset+4+add_stat_size+4 );
proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size+4, 4, "Originator Serial Number: 0x%08X", temp_data );
/* Display the application reply size */
app_rep_size = tvb_get_guint8( tvb, offset+4+add_stat_size+8 ) * 2;
proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size+8, 1, "Application Reply Size: %d (words)", app_rep_size / 2 );
/* Display the Reserved byte */
temp_byte = tvb_get_guint8( tvb, offset+4+add_stat_size+9 );
proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size+9, 1, "Reserved: 0x%02X", temp_byte );
if( app_rep_size != 0 )
{
/* Display application Reply data */
ar_item = proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size+10, app_rep_size, "Application Reply:" );
for( i=0; i < app_rep_size; i ++ )
{
temp_byte = tvb_get_guint8( tvb, offset+4+add_stat_size+10+i );
proto_item_append_text(ar_item, " 0x%02X", temp_byte );
}
} /* End of if reply data */
} /* End of if forward close response */
else if( ( tvb_get_guint8( tvb, offset ) & 0x7F ) == SC_UNCON_SEND )
{
/* Unconnected send response (Success) */
/* Display service response data */
add_byte_array_text_to_proto_tree( cmd_data_tree, tvb, offset+4+add_stat_size, item_length-4-add_stat_size, "Data: " );
}
else if( ( tvb_get_guint8( tvb, offset ) & 0x7F ) == SC_MULT_SERV_PACK )
{
/* Multiple Service Reply (Success)*/
/* Add number of replies */
num_services = tvb_get_letohs( tvb, offset+4+add_stat_size );
proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size, 2, "Number of Replies: %d", num_services );
/* Add replies */
temp_item = proto_tree_add_text( cmd_data_tree, tvb, offset+2+add_stat_size+4, num_services*2, "Offsets: " );
for( i=0; i < num_services; i++ )
{
int serv_length;
serv_offset = tvb_get_letohs( tvb, offset+6+add_stat_size+(i*2) );
if( i == (num_services-1) )
{
/* Last service to add */
proto_item_append_text(temp_item, "%d", serv_offset );
serv_length = item_length-add_stat_size-serv_offset-4;
}
else
{
proto_item_append_text(temp_item, "%d, ", serv_offset );
serv_length = tvb_get_letohs( tvb, offset+6+add_stat_size+((i+1)*2) ) - serv_offset;
}
temp_item2 = proto_tree_add_text( cmd_data_tree, tvb, offset+serv_offset+4, serv_length, "Service Reply #%d", i+1 );
temp_tree = proto_item_add_subtree( temp_item2, ett_mult_ser );
add_cip_data( temp_tree, tvb, offset+serv_offset+4, serv_length, pinfo );
}
} /* End if Multiple service Packet */
else if( ( tvb_get_guint8( tvb, offset ) & 0x7F ) == SC_GET_ATT_LIST )
{
/* Get Attribute List Reply (Success)*/
int att_count;
/* Add Attribute Count */
att_count = tvb_get_letohs( tvb, offset+4+add_stat_size );
proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size, 2, "Attribute Count: %d", att_count );
/* Add the data */
add_byte_array_text_to_proto_tree( cmd_data_tree, tvb, offset+6+add_stat_size, item_length-6-add_stat_size, "Data: " );
} /* End if Multiple service Packet */
else
{
/* Add data */
add_byte_array_text_to_proto_tree( cmd_data_tree, tvb, offset+4+add_stat_size, item_length-4-add_stat_size, "Data: " );
} /* end of check service code */
}
else
{
/* Error responses */
if( ( ( tvb_get_guint8( tvb, offset ) & 0x7F ) == SC_FWD_OPEN ) ||
( ( tvb_get_guint8( tvb, offset ) & 0x7F ) == SC_FWD_CLOSE ) )
{
/* Forward open and forward close error response look the same */
/* Display connection serial number */
temp_data = tvb_get_letohs( tvb, offset+4+add_stat_size );
proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size, 2, "Connection Serial Number: 0x%04X", temp_data );
/* Display the originator vendor id */
proto_tree_add_item( cmd_data_tree, hf_enip_vendors, tvb, offset+4+add_stat_size+2, 2, TRUE);
/* Display the originator serial number */
temp_data = tvb_get_letohl( tvb, offset+4+add_stat_size+4 );
proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size+4, 4, "Originator Serial Number: 0x%08X", temp_data );
/* Display remaining path size */
temp_data = tvb_get_guint8( tvb, offset+4+add_stat_size+8 );
proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size+8, 1, "Remaining Path Size: %d", temp_data );
/* Display reserved data */
temp_data = tvb_get_guint8( tvb, offset+4+add_stat_size+9 );
proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size+9, 1, "Reserved: 0x%02X", temp_data );
}
else if( ( tvb_get_guint8( tvb, offset ) & 0x7F ) == SC_UNCON_SEND )
{
/* Unconnected send response (Unsuccess) */
/* Display remaining path size */
temp_data = tvb_get_guint8( tvb, offset+4+add_stat_size);
proto_tree_add_text( cmd_data_tree, tvb, offset+4+add_stat_size, 1, "Remaining Path Size: %d", temp_data );
}
else
{
/* Add data */
add_byte_array_text_to_proto_tree( cmd_data_tree, tvb, offset+4+add_stat_size, item_length-4-add_stat_size, "Data: " );
}
} /* end of if-else( CI_CRC_SUCCESS ) */
} /* End of if command-specific data present */
} /* End of if reply */
else
{
/* Request */
/* Add path size */
req_path_size = tvb_get_guint8( tvb, offset+1 )*2;
proto_tree_add_text( item_tree, tvb, offset+1, 1, "Request Path Size: %d (words)", req_path_size/2 );
/* Add the epath */
pi = proto_tree_add_text(item_tree, tvb, offset+2, req_path_size, "Request Path: ");
show_epath( tvb, pi, offset+2, req_path_size );
/* If there is any command specific data creat a sub-tree for it */
if( (item_length-req_path_size-2) != 0 )
{
pi = proto_tree_add_text( item_tree, tvb, offset+2+req_path_size, item_length-req_path_size-2, "Command Specific Data" );
cmd_data_tree = proto_item_add_subtree( pi, ett_cmd_data );
/* Check what service code that recived */
if( tvb_get_guint8( tvb, offset ) == SC_FWD_OPEN )
{
/* Forward open Request*/
/* Display the priority/tick timer */
temp_byte = tvb_get_guint8( tvb, offset+2+req_path_size );
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size, 1, "Priority/Time_tick: 0x%02X", temp_byte );
/* Display the time-out ticks */
temp_data = tvb_get_guint8( tvb, offset+2+req_path_size+1 );
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+1, 1, "Time-out_ticks: %d", temp_data );
/* Display the actual time out */
temp_data = ( 1 << ( temp_byte & 0x0F ) ) * temp_data;
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size, 2, "Actual Time Out: %dms", temp_data );
/* Display originator to taget connection ID */
temp_data = tvb_get_letohl( tvb, offset+2+req_path_size+2 );
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+2, 4, "O->T Network Connection ID: 0x%08X", temp_data );
/* Display target to originator connection ID */
temp_data = tvb_get_letohl( tvb, offset+2+req_path_size+6 );
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+6, 4, "T->O Network Connection ID: 0x%08X", temp_data );
/* Display connection serial number */
temp_data = tvb_get_letohs( tvb, offset+2+req_path_size+10 );
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+10, 2, "Connection Serial Number: 0x%04X", temp_data );
/* Display the originator vendor id */
proto_tree_add_item( cmd_data_tree, hf_enip_vendors, tvb, offset+2+req_path_size+12, 2, TRUE);
/* Display the originator serial number */
temp_data = tvb_get_letohl( tvb, offset+2+req_path_size+14 );
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+14, 4, "Originator Serial Number: 0x%08X", temp_data );
/* Display the timeout multiplier */
temp_data = tvb_get_guint8( tvb, offset+2+req_path_size+18 );
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+18, 1, "Connection Timeout Multiplier: %s (%d)", val_to_str( temp_data, enip_con_time_mult_vals , "Reserved" ), temp_data );
/* Put out an indicator for the reserved bytes */
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+19, 3, "Reserved Data" );
/* Display originator to target requested packet interval */
temp_data = tvb_get_letohl( tvb, offset+2+req_path_size+22 );
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+22, 4, "O->T RPI: %dms (0x%08X)", temp_data / 1000, temp_data );
/* Display originator to target network connection patameterts, in a tree */
temp_data = tvb_get_letohs( tvb, offset+2+req_path_size+26 );
ncppi = proto_tree_add_text(cmd_data_tree, tvb, offset+2+req_path_size+26, 2, "O->T Network Connection Parameters: 0x%04X", temp_data );
ncp_tree = proto_item_add_subtree(ncppi, ett_ncp);
/* Add the data to the tree */
proto_tree_add_item(ncp_tree, hf_enip_ucm_fwo_own,
tvb, offset+2+req_path_size+26, 2, TRUE );
proto_tree_add_item(ncp_tree, hf_enip_ucm_fwo_typ,
tvb, offset+2+req_path_size+26, 2, TRUE );
proto_tree_add_item(ncp_tree, hf_enip_ucm_fwo_prio,
tvb, offset+2+req_path_size+26, 2, TRUE );
proto_tree_add_item(ncp_tree, hf_enip_ucm_fwo_fixed_var,
tvb, offset+2+req_path_size+26, 2, TRUE );
proto_tree_add_item(ncp_tree, hf_enip_ucm_fwo_con_size,
tvb, offset+2+req_path_size+26, 2, TRUE );
/* Display target to originator requested packet interval */
temp_data = tvb_get_letohl( tvb, offset+2+req_path_size+28 );
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+28, 4, "T->O RPI: %dms (0x%08X)", temp_data / 1000, temp_data );
/* Display target to originator network connection patameterts, in a tree */
temp_data = tvb_get_letohs( tvb, offset+2+req_path_size+32 );
ncppi = proto_tree_add_text(cmd_data_tree, tvb, offset+2+req_path_size+32, 2, "T->O Network Connection Parameters: 0x%04X", temp_data );
ncp_tree = proto_item_add_subtree(ncppi, ett_ncp);
/* Add the data to the tree */
proto_tree_add_item(ncp_tree, hf_enip_ucm_fwo_own,
tvb, offset+2+req_path_size+32, 2, TRUE );
proto_tree_add_item(ncp_tree, hf_enip_ucm_fwo_typ,
tvb, offset+2+req_path_size+32, 2, TRUE );
proto_tree_add_item(ncp_tree, hf_enip_ucm_fwo_prio,
tvb, offset+2+req_path_size+32, 2, TRUE );
proto_tree_add_item(ncp_tree, hf_enip_ucm_fwo_fixed_var,
tvb, offset+2+req_path_size+32, 2, TRUE );
proto_tree_add_item(ncp_tree, hf_enip_ucm_fwo_con_size,
tvb, offset+2+req_path_size+32, 2, TRUE );
/* Transport type/trigger in tree*/
temp_data = tvb_get_guint8( tvb, offset+2+req_path_size+34 );
ncppi = proto_tree_add_text(cmd_data_tree, tvb, offset+2+req_path_size+34, 1, "Transport Type/Trigger: 0x%02X", temp_data );
ncp_tree = proto_item_add_subtree(ncppi, ett_ncp);
/* Add the data to the tree */
proto_tree_add_item(ncp_tree, hf_enip_ucm_fwo_dir,
tvb, offset+2+req_path_size+34, 1, TRUE );
proto_tree_add_item(ncp_tree, hf_enip_ucm_fwo_trigg,
tvb, offset+2+req_path_size+34, 1, TRUE );
proto_tree_add_item(ncp_tree, hf_enip_ucm_fwo_class,
tvb, offset+2+req_path_size+34, 1, TRUE );
/* Add path size */
conn_path_size = tvb_get_guint8( tvb, offset+2+req_path_size+35 )*2;
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+35, 1, "Connection Path Size: %d (words)", conn_path_size / 2 );
/* Add the epath */
pi = proto_tree_add_text(cmd_data_tree, tvb, offset+2+req_path_size+36, conn_path_size, "Connection Path: ");
show_epath( tvb, pi, offset+2+req_path_size+36, conn_path_size );
}
else if( tvb_get_guint8( tvb, offset ) == SC_FWD_CLOSE )
{
/* Forward Close Request */
/* Display the priority/tick timer */
temp_byte = tvb_get_guint8( tvb, offset+2+req_path_size );
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size, 1, "Priority/Time_tick: 0x%02X", temp_byte );
/* Display the time-out ticks */
temp_data = tvb_get_guint8( tvb, offset+2+req_path_size+1 );
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+1, 1, "Time-out_ticks: %d", temp_data );
/* Display the actual time out */
temp_data = ( 1 << ( temp_byte & 0x0F ) ) * temp_data;
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size, 2, "Actual Time Out: %dms", temp_data );
/* Display connection serial number */
temp_data = tvb_get_letohs( tvb, offset+2+req_path_size+2 );
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+2, 2, "Connection Serial Number: 0x%04X", temp_data );
/* Display the originator vendor id */
proto_tree_add_item( cmd_data_tree, hf_enip_vendors, tvb, offset+2+req_path_size+4, 2, TRUE);
/* Display the originator serial number */
temp_data = tvb_get_letohl( tvb, offset+2+req_path_size+6 );
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+6, 4, "Originator Serial Number: 0x%08X", temp_data );
/* Add the path size */
conn_path_size = tvb_get_guint8( tvb, offset+2+req_path_size+10 )*2;
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+10, 1, "Connection Path Size: %d (words)", conn_path_size / 2 );
/* Add the reserved byte */
temp_byte = tvb_get_guint8( tvb, offset+2+req_path_size+11 );
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+11, 1, "Reserved: 0x%02X", temp_byte );
/* Add the EPATH */
pi = proto_tree_add_text(cmd_data_tree, tvb, offset+2+req_path_size+12, conn_path_size, "Connection Path: ");
show_epath( tvb, pi, offset+2+req_path_size+12, conn_path_size );
} /* End of forward close */
else if( tvb_get_guint8( tvb, offset ) == SC_UNCON_SEND )
{
/* Unconnected send */
/* Display the priority/tick timer */
temp_byte = tvb_get_guint8( tvb, offset+2+req_path_size );
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size, 1, "Priority/Time_tick: 0x%02X", temp_byte );
/* Display the time-out ticks */
temp_data = tvb_get_guint8( tvb, offset+2+req_path_size+1 );
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+1, 1, "Time-out_ticks: %d", temp_data );
/* Display the actual time out */
temp_data = ( 1 << ( temp_byte & 0x0F ) ) * temp_data;
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size, 2, "Actual Time Out: %dms", temp_data );
/* Message request size */
msg_req_siz = tvb_get_letohs( tvb, offset+2+req_path_size+2 );
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+2, 2, "Message Request Size: 0x%04X", msg_req_siz );
/* Message Request */
temp_item = proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+4, msg_req_siz, "Message Request" );
temp_tree = proto_item_add_subtree(temp_item, ett_mes_req );
/* MR - Service */
temp_data = tvb_get_guint8( tvb, offset+2+req_path_size+4 );
proto_tree_add_text( temp_tree, tvb, offset+2+req_path_size+4, 1, "Service: %s (0x%02X)", val_to_str( temp_data, encap_sc_vals , "" ), temp_data );
/* Add service to info column */
if(check_col(pinfo->cinfo, COL_INFO))
{
col_append_fstr( pinfo->cinfo, COL_INFO, ", %s",
val_to_str( ( temp_data & 0x7F ),
encap_sc_vals , ", Unknown Service (%x)") );
}
/* MR - Request path Size */
mr_req_path_size = tvb_get_guint8( tvb, offset+2+req_path_size+5 )*2;
proto_tree_add_text( temp_tree, tvb, offset+2+req_path_size+5, 1, "Request Path Size: %d (words)", mr_req_path_size/2 );
/* MR - EPATH */
temp_item = proto_tree_add_text(temp_tree, tvb, offset+2+req_path_size+6, mr_req_path_size, "Request Path: ");
show_epath( tvb, temp_item, offset+2+req_path_size+6, mr_req_path_size );
/* MR - Request data */
if( ( msg_req_siz-2-mr_req_path_size ) != 0 )
{
add_byte_array_text_to_proto_tree( temp_tree, tvb, offset+2+req_path_size+6+mr_req_path_size, msg_req_siz-2-mr_req_path_size, "Request Data: " );
}
if( msg_req_siz % 2 )
{
/* Pad byte */
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+4+msg_req_siz, 1, "Pad Byte (0x%02X)",
tvb_get_guint8( tvb, offset+2+req_path_size+4+msg_req_siz ) );
msg_req_siz++; /* include the padding */
}
/* Route Path Size */
route_path_size = tvb_get_guint8( tvb, offset+2+req_path_size+4+msg_req_siz )*2;
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+4+msg_req_siz, 1, "Route Path Size: %d (words)", route_path_size/2 );
/* Reserved */
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+5+msg_req_siz, 1, "Reserved (0x%02X)",
tvb_get_guint8( tvb, offset+2+req_path_size+5+msg_req_siz ) );
/* Route Path */
temp_item = proto_tree_add_text(cmd_data_tree, tvb, offset+2+req_path_size+6+msg_req_siz, route_path_size, "Route Path");
show_epath( tvb, temp_item, offset+2+req_path_size+6+msg_req_siz, route_path_size );
} /* End if unconnected send */
else if( tvb_get_guint8( tvb, offset ) == SC_MULT_SERV_PACK )
{
/* Multiple service packet */
/* Add number of services */
num_services = tvb_get_letohs( tvb, offset+2+req_path_size );
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size, 2, "Number of Services: %d", num_services );
/* Add services */
temp_item = proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+2, num_services*2, "Offsets: " );
for( i=0; i < num_services; i++ )
{
int serv_length;
serv_offset = tvb_get_letohs( tvb, offset+4+req_path_size+(i*2) );
if( i == (num_services-1) )
{
/* Last service to add */
serv_length = item_length-2-req_path_size-serv_offset;
proto_item_append_text(temp_item, "%d", serv_offset );
}
else
{
serv_length = tvb_get_letohs( tvb, offset+4+req_path_size+((i+1)*2) ) - serv_offset;
proto_item_append_text(temp_item, "%d, ", serv_offset );
}
temp_item2 = proto_tree_add_text( cmd_data_tree, tvb, offset+serv_offset+6, serv_length, "Service Packet #%d", i+1 );
temp_tree = proto_item_add_subtree( temp_item2, ett_mult_ser );
add_cip_data( temp_tree, tvb, offset+serv_offset+6, serv_length, pinfo );
}
} /* End if Multiple service Packet */
else if( tvb_get_guint8( tvb, offset ) == SC_GET_ATT_LIST )
{
/* Get attribute list request */
int att_count;
/* Add number of services */
att_count = tvb_get_letohs( tvb, offset+2+req_path_size );
proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size, 2, "Attribute Count: %d", att_count );
/* Add Attribute List */
temp_item = proto_tree_add_text( cmd_data_tree, tvb, offset+2+req_path_size+2, att_count*2, "Attribute List: " );
for( i=0; i < att_count; i++ )
{
if( i == (att_count-1) )
proto_item_append_text(temp_item, "%d",tvb_get_letohs( tvb, offset+4+req_path_size+(i*2) ) );
else
proto_item_append_text(temp_item, "%d, ",tvb_get_letohs( tvb, offset+4+req_path_size+(i*2) ) );
}
} /* End of Get attribute list request */
else
{
/* Add data */
add_byte_array_text_to_proto_tree( cmd_data_tree, tvb, offset+2+req_path_size, item_length-req_path_size-2, "Data: " );
} /* End of check service code */
} /* End of if command-specific data present */
} /* end of if-else( request ) */
} /* end of add_cip_data() */
static void
show_cdf( int encap_service, tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset )
{
proto_item *temp_item, *ri, *ci;
proto_item *sockaddr_item;
proto_tree *temp_tree, *cip_tree, *item_tree, *sockaddr_tree;
int temp_data, item_count, item_length, item, i;
char temp_char;
unsigned char name_length;
/* Show Common Data Format sub tree */
item_count = tvb_get_letohs( tvb, offset );
ri = proto_tree_add_text( tree, tvb, offset, 2, "Item Count: %d", item_count );
cip_tree = proto_item_add_subtree(ri, ett_cip);
while( item_count-- )
{
/* Add item type tree */
ci = proto_tree_add_item(cip_tree, hf_enip_cpf_typeid, tvb, offset+2, 2, TRUE );
item_tree = proto_item_add_subtree(ci, ett_cpf);
/* Add length field */
temp_data = tvb_get_letohs( tvb, offset+4 );
proto_tree_add_text( item_tree, tvb, offset+4, 2, "Length: %d", temp_data );
item = tvb_get_letohs( tvb, offset+2 );
item_length = tvb_get_letohs( tvb, offset+4 );
if( item_length )
{
/* Add item data field */
switch( item )
{
case CONNECTION_BASED:
/* Add Connection identifier */
proto_tree_add_text( item_tree, tvb, offset+6, 4, "Connection Identifier: 0x%08X", tvb_get_letohl( tvb, offset + 6 ) );
/* Add Connection ID to Info col */
if(check_col(pinfo->cinfo, COL_INFO))
{
col_append_fstr(pinfo->cinfo, COL_INFO,
", CONID: 0x%08X",
tvb_get_letohl( tvb, offset+6 ) );
}
break;
case UNCONNECTED_MSG:
/* Add CIP data tree*/
add_cip_data( item_tree, tvb, offset+6, item_length, pinfo );
break;
case CONNECTION_TRANSPORT:
if( encap_service == SEND_UNIT_DATA )
{
/*
** If the encapsulation service is SendUnit Data, this is a
** encapsulated connected message
*/
/* Add sequence count ( Transport Class 1,2,3 )*/
proto_tree_add_text( item_tree, tvb, offset+6, 2, "Sequence Count: 0x%04X", tvb_get_letohs( tvb, offset+6 ) );
/* Add CIP data tree */
add_cip_data( item_tree, tvb, offset+8, item_length-2, pinfo );
/* Add SEQ Count to Info col */
/*
if(check_col(pinfo->cinfo, COL_INFO))
{
col_append_fstr(pinfo->cinfo, COL_INFO,
", SEQ=0x%04X",
tvb_get_letohs( tvb, offset+6 ) );
}
*/
}
else
{
/* Display data */
add_byte_array_text_to_proto_tree( item_tree, tvb, offset+6, item_length, "Data: " );
} /* End of if send unit data */
break;
case LIST_IDENTITY_RESP:
/* Encapsulation version */
temp_data = tvb_get_letohs( tvb, offset+6 );
proto_tree_add_text( item_tree, tvb, offset+6, 2, "Encapsulation Version: %d", temp_data );
/* Socket Address */
sockaddr_item = proto_tree_add_text( item_tree, tvb, offset+8, 16, "Socket Address");
sockaddr_tree = proto_item_add_subtree( sockaddr_item, ett_sockadd );
/* Socket address struct - sin_family */
proto_tree_add_item(sockaddr_tree, hf_enip_cpf_lir_sinfamily,
tvb, offset+8, 2, FALSE );
/* Socket address struct - sin_port */
proto_tree_add_item(sockaddr_tree, hf_enip_cpf_lir_sinport,
tvb, offset+10, 2, FALSE );
/* Socket address struct - sin_address */
proto_tree_add_item(sockaddr_tree, hf_enip_cpf_lir_sinaddr,
tvb, offset+12, 4, FALSE );
/* Socket address struct - sin_zero */
proto_tree_add_item(sockaddr_tree, hf_enip_cpf_lir_sinzero,
tvb, offset+16, 8, FALSE );
/* Vendor ID */
proto_tree_add_item(item_tree, hf_enip_vendors,
tvb, offset+24, 2, TRUE );
/* Device Type */
proto_tree_add_item(item_tree, hf_enip_cpf_lir_devtype,
tvb, offset+26, 2, TRUE );
/* Product Code */
proto_tree_add_item(item_tree, hf_enip_cpf_lir_prodcode,
tvb, offset+28, 2, TRUE );
/* Revision */
temp_data = tvb_get_letohs( tvb, offset+30 );
proto_tree_add_text( item_tree, tvb, offset+30, 2, "Revision: v.%d.%02d", temp_data & 0xFF, ( temp_data & 0xFF00 ) >> 8 );
/* Status */
proto_tree_add_item(item_tree, hf_enip_cpf_lir_status,
tvb, offset+32, 2, TRUE );
/* Serial Number */
proto_tree_add_item(item_tree, hf_enip_cpf_lir_sernbr,
tvb, offset+34, 4, TRUE );
/* Product Name Length */
proto_tree_add_item(item_tree, hf_enip_cpf_lir_namelength,
tvb, offset+38, 1, TRUE );
/* Get the lenth of the name */
name_length = tvb_get_guint8( tvb, offset+38 );
/* Product Name Length */
proto_tree_add_item(item_tree, hf_enip_cpf_lir_name,
tvb, offset+39, name_length, TRUE );
/* Product Name Length */
proto_tree_add_item(item_tree, hf_enip_cpf_lir_state,
tvb, offset+name_length+39, 1, TRUE );
break;
case SOCK_ADR_INFO_OT:
case SOCK_ADR_INFO_TO:
/* Socket address struct - sin_family */
proto_tree_add_item(item_tree, hf_enip_cpf_lir_sinfamily,
tvb, offset+6, 2, FALSE );
/* Socket address struct - sin_port */
proto_tree_add_item(item_tree, hf_enip_cpf_lir_sinport,
tvb, offset+8, 2, FALSE );
/* Socket address struct - sin_address */
proto_tree_add_item(item_tree, hf_enip_cpf_lir_sinaddr,
tvb, offset+10, 4, FALSE );
/* Socket address struct - sin_zero */
proto_tree_add_item( item_tree, hf_enip_cpf_lir_sinzero,
tvb, offset+14, 8, FALSE );
break;
case SEQ_ADDRESS:
proto_tree_add_item(item_tree, hf_enip_cpf_sat_connid,
tvb, offset+6, 4, TRUE );
proto_tree_add_item(item_tree, hf_enip_cpf_sat_seqnum,
tvb, offset+10, 4, TRUE );
/* Add info to column */
if(check_col(pinfo->cinfo, COL_INFO))
{
col_clear(pinfo->cinfo, COL_INFO);
col_add_fstr(pinfo->cinfo, COL_INFO,
"Connection: ID=0x%08X, SEQ=%010d",
tvb_get_letohl( tvb, offset+6 ),
tvb_get_letohl( tvb, offset+10 ) );
}
break;
case LIST_SERVICES_RESP:
/* Encapsulation version */
temp_data = tvb_get_letohs( tvb, offset+6 );
proto_tree_add_text( item_tree, tvb, offset+6, 2, "Encapsulation Version: %d", temp_data );
/* Capability flags */
temp_data = tvb_get_letohs( tvb, offset+8 );
temp_item = proto_tree_add_text(item_tree, tvb, offset+8, 2, "Capability Flags: 0x%04X", temp_data );
temp_tree = proto_item_add_subtree(temp_item, ett_lsrcf);
proto_tree_add_item(temp_tree, hf_enip_cpf_lsr_tcp,
tvb, offset+8, 2, TRUE );
proto_tree_add_item(temp_tree, hf_enip_cpf_lsr_udp,
tvb, offset+8, 2, TRUE );
/* Name of service */
temp_item = proto_tree_add_text( item_tree, tvb, offset+10, 16, "Name Of Service: " );
for( i=0; i<16; i++ )
{
temp_char = tvb_get_guint8( tvb, offset+10+i );
if( temp_char == 0 )
break;
proto_item_append_text(temp_item, "%c", temp_char );
}
break;
default:
add_byte_array_text_to_proto_tree( item_tree, tvb, offset+6, item_length, "Data: " );
break;
} /* end of switch( item type ) */
} /* end of if( item length ) */
offset = offset + item_length + 4;
} /* end of while( item count ) */
} /* end of show_cdf() */
static int
classify_packet(packet_info *pinfo)
{
/* see if nature of packets can be derived from src/dst ports */
/* if so, return as found */
if ( ( ENIP_ENCAP_PORT == pinfo->srcport && ENIP_ENCAP_PORT != pinfo->destport ) ||
( ENIP_ENCAP_PORT != pinfo->srcport && ENIP_ENCAP_PORT == pinfo->destport ) ) {
if ( ENIP_ENCAP_PORT == pinfo->srcport )
return RESPONSE_PACKET;
else if ( ENIP_ENCAP_PORT == pinfo->destport )
return REQUEST_PACKET;
}
/* else, cannot classify */
return CANNOT_CLASSIFY;
}
static guint
get_cipencap_pdu_len(tvbuff_t *tvb, int offset)
{
guint16 plen;
/*
* Get the length of the data from the encapsulation header.
*/
plen = tvb_get_letohs(tvb, offset + 2);
/*
* That length doesn't include the encapsulation header itself;
* add that in.
*/
return plen + 24;
}
/* Code to actually dissect the packets */
static void
dissect_cipencap_pdu(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
int packet_type;
guint16 encap_cmd, encap_data_length;
char pkt_type_str[9] = "";
guint32 status;
/* Set up structures needed to add the protocol subtree and manage it */
proto_item *ti, *encaph, *csf;
proto_tree *cipencap_tree, *headertree, *csftree;
/* Make entries in Protocol column and Info column on summary display */
if (check_col(pinfo->cinfo, COL_PROTOCOL))
col_set_str(pinfo->cinfo, COL_PROTOCOL, "ENIP");
if (check_col(pinfo->cinfo, COL_INFO))
col_clear(pinfo->cinfo, COL_INFO);
encap_cmd = tvb_get_letohs( tvb, 0 );
if( check_col(pinfo->cinfo, COL_INFO) )
{
packet_type = classify_packet(pinfo);
switch ( packet_type )
{
case REQUEST_PACKET:
strcpy(pkt_type_str, "Req");
break;
case RESPONSE_PACKET:
strcpy(pkt_type_str, "Rsp");
break;
default:
strcpy(pkt_type_str, "?");
}
/* Add service and request/response to info column */
col_add_fstr(pinfo->cinfo, COL_INFO,
"%-20s (%s)",
val_to_str(encap_cmd, encap_cmd_vals, "Unknown (0x%04x)"),
pkt_type_str );
} /* end of if( col exists ) */
/* In the interest of speed, if "tree" is NULL, don't do any work not
necessary to generate protocol tree items. */
if (tree) {
/* create display subtree for the protocol */
ti = proto_tree_add_item(tree, proto_cipencap, tvb, 0, -1, FALSE);
cipencap_tree = proto_item_add_subtree(ti, ett_cipencap);
/* Add encapsulation header tree */
encaph = proto_tree_add_text( cipencap_tree, tvb, 0, 24, "Encapsulation Header");
headertree = proto_item_add_subtree(encaph, ett_cipencaph);
/* CIP header information */
proto_tree_add_uint(headertree, hf_enip_command, tvb, 0, 2, encap_cmd);
encap_data_length = tvb_get_letohs( tvb, 2 );
proto_tree_add_text( headertree, tvb, 2, 2, "Length: %u", encap_data_length );
proto_tree_add_text( headertree, tvb, 4, 4, "Session Handle: 0x%08X",
tvb_get_letohl( tvb, 4 ) );
status = tvb_get_letohl( tvb, 8 );
proto_tree_add_text( headertree, tvb, 8, 4, "Status: %s (0x%08X)",
val_to_str( status, encap_status_vals,
"Unknown Status Code" ),
status);
add_byte_array_text_to_proto_tree( headertree, tvb, 12, 8, "Sender context: " );
proto_tree_add_text( headertree, tvb, 20, 4, "Options: 0x%08X",
tvb_get_letohl( tvb, 20 ) );
/*
** For some commands we want to add some info to the info column
*/
if( check_col( pinfo->cinfo, COL_INFO ) )
{
switch( encap_cmd )
{
case REGISTER_SESSION:
case UNREGISTER_SESSION:
col_append_fstr( pinfo->cinfo, COL_INFO, ", Session: 0x%08X",
tvb_get_letohl( tvb, 4 ) );
} /* end of switch() */
} /* end of id info column */
/* Command specific data - create tree */
if( encap_data_length )
{
/* The packet have some command specific data, buid a sub tree for it */
csf = proto_tree_add_text( cipencap_tree, tvb, 24, encap_data_length,
"Command Specific Data");
csftree = proto_item_add_subtree(csf, ett_csf);
switch( encap_cmd )
{
case NOP:
break;
case LIST_SERVICES:
show_cdf( encap_cmd, tvb, pinfo, csftree, 24 );
break;
case LIST_IDENTITY:
show_cdf( encap_cmd, tvb, pinfo, csftree, 24 );
break;
case LIST_INTERFACES:
show_cdf( encap_cmd, tvb, pinfo, csftree, 24 );
break;
case REGISTER_SESSION:
proto_tree_add_text( csftree, tvb, 24, 2, "Protocol Version: 0x%04X",
tvb_get_letohs( tvb, 24 ) );
proto_tree_add_text( csftree, tvb, 26, 2, "Option Flags: 0x%04X",
tvb_get_letohs( tvb, 26 ) );
break;
case UNREGISTER_SESSION:
break;
case SEND_RR_DATA:
case SEND_UNIT_DATA:
proto_tree_add_item(csftree, hf_enip_ifacehnd, tvb, 24, 4, TRUE);
proto_tree_add_text( csftree, tvb, 28, 2, "Timeout: %u",
tvb_get_letohs( tvb, 28 ) );
show_cdf( encap_cmd, tvb, pinfo, csftree, 30 );
break;
case INDICATE_STATUS:
case CANCEL:
default:
/* Can not decode - Just show the data */
add_byte_array_text_to_proto_tree( headertree, tvb, 24, encap_data_length, "Encap Data: " );
break;
} /* end of switch() */
} /* end of if( encapsulated data ) */
}
} /* end of dissect_cipencap() */
static int
dissect_cipencap_udp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
guint16 encap_cmd;
/* An ENIP packet is at least 4 bytes long - we need the command type. */
if (!tvb_bytes_exist(tvb, 0, 4))
return 0;
/* Get the command type and see if it's valid. */
encap_cmd = tvb_get_letohs( tvb, 0 );
if (match_strval(encap_cmd, encap_cmd_vals) == NULL)
return 0; /* not a known command */
dissect_cipencap_pdu(tvb, pinfo, tree);
return tvb_length(tvb);
}
static int
dissect_cipencap_tcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
guint16 encap_cmd;
/* An ENIP packet is at least 4 bytes long - we need the command type. */
if (!tvb_bytes_exist(tvb, 0, 4))
return 0;
/* Get the command type and see if it's valid. */
encap_cmd = tvb_get_letohs( tvb, 0 );
if (match_strval(encap_cmd, encap_cmd_vals) == NULL)
return 0; /* not a known command */
tcp_dissect_pdus(tvb, pinfo, tree, cipencap_desegment, 4,
get_cipencap_pdu_len, dissect_cipencap_pdu);
return tvb_length(tvb);
}
/* Code to actually dissect the io packets*/
static void
dissect_enipio(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
/* Set up structures needed to add the protocol subtree and manage it */
proto_item *ti;
proto_tree *cipencap_tree;
/* Make entries in Protocol column and Info column on summary display */
if (check_col(pinfo->cinfo, COL_PROTOCOL))
col_set_str(pinfo->cinfo, COL_PROTOCOL, "ENIP");
/* In the interest of speed, if "tree" is NULL, don't do any work not
necessary to generate protocol tree items. */
if (tree)
{
/* create display subtree for the protocol */
ti = proto_tree_add_item(tree, proto_cipencap, tvb, 0, -1, FALSE);
cipencap_tree = proto_item_add_subtree(ti, ett_cipencap);
show_cdf( 0xFFFF, tvb, pinfo, cipencap_tree, 0 );
}
} /* end of dissect_enipio() */
/* Register the protocol with Ethereal */
/* this format is require because a script is used to build the C function
that calls all the protocol registration.
*/
void
proto_register_cipencap(void)
{
/* Setup list of header fields lengthSee Section 1.6.1 for details*/
static hf_register_info hf[] = {
{ &hf_enip_command,
{ "Command", "enip.command",
FT_UINT16, BASE_HEX, VALS(encap_cmd_vals), 0,
"Encapsulation command", HFILL }
},
/* Encapsulated data headers */
/* Common Packet Format */
{ &hf_enip_cpf_typeid,
{ "Type ID", "enip.cpf.typeid",
FT_UINT16, BASE_HEX, VALS(cdf_type_vals), 0,
"Type of encapsulated item", HFILL }
},
/* Send RR Data */
{ &hf_enip_ifacehnd,
{ "Interface Handle", "enip.cpf.rr.ifacehnd",
FT_UINT32, BASE_HEX, NULL, 0,
"Interface handle", HFILL }
},
/* Unconnected message */
{ &hf_enip_ucm_rr,
{ "Request/Response", "enip.cip.rr",
FT_UINT8, BASE_HEX, VALS(encap_sc_rr), 0x80,
"Request or Response message", HFILL }
},
{ &hf_enip_ucm_sc,
{ "Service", "enip.cip.sc",
FT_UINT8, BASE_HEX, VALS(encap_sc_vals), 0x7F,
"CIP Service code", HFILL }
},
{ &hf_enip_ucm_path,
{ "Request Path", "enip.cip.path",
FT_BYTES, BASE_HEX, NULL, 0,
"Request path", HFILL }
},
{ &hf_enip_ucm_genstat,
{ "General Status", "enip.cip.genstat",
FT_UINT8, BASE_HEX, VALS(encap_cip_gs_vals), 0,
"General Status", HFILL }
},
/* List identity response */
{ &hf_enip_cpf_lir_sinfamily,
{ "sin_family", "enip.lir.sinfamily",
FT_UINT16, BASE_DEC, NULL, 0,
"Socket Address Sin Family", HFILL }
},
{ &hf_enip_cpf_lir_sinport,
{ "sin_port", "enip.lir.sinport",
FT_UINT16, BASE_DEC, NULL, 0,
"Socket Address Sin Port", HFILL }
},
{ &hf_enip_cpf_lir_sinaddr,
{ "sin_addr", "enip.lir.sinaddr",
FT_IPv4, BASE_HEX, NULL, 0,
"Socket Address Sin Addr", HFILL }
},
{ &hf_enip_cpf_lir_sinzero,
{ "sin_zero", "enip.lir.sinzero",
FT_BYTES, BASE_HEX, NULL, 0,
"Socket Address Sin Zero", HFILL }
},
{ &hf_enip_cpf_lir_devtype,
{ "Device Type", "enip.lir.devtype",
FT_UINT16, BASE_DEC, VALS(encap_cip_devtype_vals), 0,
"Device Type", HFILL }
},
{ &hf_enip_cpf_lir_prodcode,
{ "Product Code", "enip.lir.prodcode",
FT_UINT16, BASE_DEC, NULL, 0,
"Product Code", HFILL }
},
{ &hf_enip_cpf_lir_status,
{ "Status", "enip.lir.status",
FT_UINT16, BASE_HEX, NULL, 0,
"Status", HFILL }
},
{ &hf_enip_cpf_lir_sernbr,
{ "Serial Number", "enip.lir.ser",
FT_UINT32, BASE_HEX, NULL, 0,
"Serial Number", HFILL }
},
{ &hf_enip_cpf_lir_namelength,
{ "Product Name Length", "enip.lir.namelength",
FT_UINT8, BASE_DEC, NULL, 0,
"Product Name Length", HFILL }
},
{ &hf_enip_cpf_lir_name,
{ "Product Name", "enip.lir.name",
FT_STRING, BASE_NONE, NULL, 0,
"Product Name", HFILL }
},
{ &hf_enip_cpf_lir_state,
{ "State", "enip.lir.state",
FT_UINT8, BASE_HEX, NULL, 0,
"State", HFILL }
},
/* Vendor ID number */
{ &hf_enip_vendors,
{ "Vendor ID", "enip.vnd",
FT_UINT16, BASE_HEX, VALS(encap_cip_vendor_vals), 0,
"Vendor ID number", HFILL }
},
{ &hf_enip_ucm_fwo_comp,
{ "Compatibility", "enip.cip.fwo.cmp",
FT_UINT8, BASE_HEX, VALS(enip_com_bit_vals), 0x80,
"Compatibility bit", HFILL }
},
{ &hf_enip_ucm_fwo_mrev,
{ "Major Revision", "enip.cip.fwo.mrev",
FT_UINT8, BASE_DEC, NULL, 0x7F,
"Major Revision", HFILL }
},
{ &hf_enip_ucm_fwo_con_size,
{ "Connection Size", "enip.cip.fwo.consize",
FT_UINT16, BASE_DEC, NULL, 0x01FF,
"Connection size", HFILL }
},
{ &hf_enip_ucm_fwo_fixed_var,
{ "Connection Size Type", "enip.cip.fwo.f_v",
FT_UINT16, BASE_DEC, VALS(enip_con_fw_vals), 0x0200,
"Fixed or variable connection size", HFILL }
},
{ &hf_enip_ucm_fwo_prio,
{ "Priority", "enip.cip.fwo.prio",
FT_UINT16, BASE_DEC, VALS(enip_con_prio_vals), 0x0C00,
"Connection priority", HFILL }
},
{ &hf_enip_ucm_fwo_typ,
{ "Connection Type", "enip.cip.fwo.typ",
FT_UINT16, BASE_DEC, VALS(enip_con_type_vals), 0x6000,
"Connection type", HFILL }
},
{ &hf_enip_ucm_fwo_own,
{ "Owner", "enip.cip.fwo.own",
FT_UINT16, BASE_DEC, VALS(enip_con_owner_vals), 0x8000,
"Redundant owner bit", HFILL }
},
{ &hf_enip_ucm_fwo_dir,
{ "Direction", "enip.cip.fwo.dir",
FT_UINT8, BASE_DEC, VALS(enip_con_dir_vals), 0x80,
"Direction", HFILL }
},
{ &hf_enip_ucm_fwo_trigg,
{ "Trigger", "enip.cip.fwo.trigg",
FT_UINT8, BASE_DEC, VALS(enip_con_trigg_vals), 0x70,
"Production trigger", HFILL }
},
{ &hf_enip_ucm_fwo_class,
{ "Class", "enip.cip.fwo.class",
FT_UINT8, BASE_DEC, VALS(enip_con_class_vals), 0x0F,
"Transport Class", HFILL }
},
/* Sequenced Address Type */
{ &hf_enip_cpf_sat_connid,
{ "Connection ID", "enip.sat.connid",
FT_UINT32, BASE_HEX, NULL, 0,
"Connection ID from forward open reply", HFILL }
},
{ &hf_enip_cpf_sat_seqnum,
{ "Sequence Number", "enip.sat.seq",
FT_UINT32, BASE_DEC, NULL, 0,
"Sequence Number", HFILL }
},
{ &hf_enip_cpf_lsr_tcp,
{ "Supports CIP Encapsultion via TCP", "enip.ls.tcp",
FT_UINT16, BASE_DEC, VALS(enip_true_false_vals), 0x0020,
"Supports CIP Encapsultion via TCP", HFILL }
},
{ &hf_enip_cpf_lsr_udp,
{ "Supports CIP Class 0 or 1 via UDP", "enip.ls.udp",
FT_UINT16, BASE_DEC, VALS(enip_true_false_vals), 0x0100,
"Supports CIP Class 0 or 1 via UDP", HFILL }
}
};
/* Setup protocol subtree array */
static gint *ett[] = {
&ett_cipencap,
&ett_cip,
&ett_cpf,
&ett_path,
&ett_ekey_path,
&ett_cipencaph,
&ett_csf,
&ett_rrsc,
&ett_sockadd,
&ett_mcsc,
&ett_ncp,
&ett_cia_path,
&ett_data_seg,
&ett_lsrcf,
&ett_mes_req,
&ett_cmd_data,
&ett_port_path,
&ett_mult_ser
};
module_t *cipencap_module;
/* Register the protocol name and description */
proto_cipencap = proto_register_protocol("EtherNet/IP (Industrial Protocol)",
"ENIP", "enip");
/* Required function calls to register the header fields and subtrees used */
proto_register_field_array(proto_cipencap, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
cipencap_module = prefs_register_protocol(proto_cipencap, NULL);
prefs_register_bool_preference(cipencap_module, "desegment",
"Desegment all EtherNet/IP messages spanning multiple TCP segments",
"Whether the EtherNet/IP dissector should desegment all messages spanning multiple TCP segments",
&cipencap_desegment);
} /* end of proto_register_cipencap() */
/* If this dissector uses sub-dissector registration add a registration routine.
This format is required because a script is used to find these routines and
create the code that calls these routines.
*/
void
proto_reg_handoff_cipencap(void)
{
dissector_handle_t cipencap_udp_handle, cipencap_tcp_handle;
dissector_handle_t enipio_handle;
/* Register for encapsulated CIP data, using both TCP/UDP */
cipencap_tcp_handle = new_create_dissector_handle(dissect_cipencap_tcp, proto_cipencap);
dissector_add("tcp.port", ENIP_ENCAP_PORT, cipencap_tcp_handle);
cipencap_udp_handle = new_create_dissector_handle(dissect_cipencap_udp, proto_cipencap);
dissector_add("udp.port", ENIP_ENCAP_PORT, cipencap_udp_handle);
/* Register for IO data over UDP */
enipio_handle = create_dissector_handle(dissect_enipio, proto_cipencap);
dissector_add("udp.port", ENIP_IO_PORT, enipio_handle);
} /* end of proto_reg_handoff_cipencap() */
View Git Blame Copy Permalink