nexmon – Rev 1
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/* packet-dnp.c
* Routines for DNP dissection
* Copyright 2003, 2006, 2007, 2013 Graham Bloice <graham.bloice<at>trihedral.com>
*
* DNP3.0 Application Layer Object dissection added by Chris Bontje (cbontje<at>gmail.com)
* Device attribute dissection added by Chris Bontje
* Copyright 2005, 2013
*
* Major updates: tcp and application layer defragmentation, more object dissections by Graham Bloice
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include <math.h>
#include <epan/packet.h>
#include <epan/prefs.h>
#include <epan/reassemble.h>
#include "packet-tcp.h"
#include "packet-udp.h"
#include <epan/expert.h>
#include <epan/to_str.h>
#include <epan/crc16-tvb.h>
#include <wsutil/crc16.h>
#include <wsutil/str_util.h>
/*
* See
*
* http://www.dnp.org/
*
* although note that you have to join the DNP organization to get to
* see the protocol specs online - otherwise, you have to buy a
* dead-tree version.
*
* ...Application Layer Notes...
*
* Application Layer Decoding based on information available in
* DNP3 Basic 4 Documentation Set, specifically the document:
* "DNP V3.00 Application Layer" v0.03 P009-0PD.APP & Technical Bulletins
*
* ---------------------------------------------------------------------------
*
* Several command codes were missing, causing the dissector to abort decoding
* on valid packets. Those commands have been added.
*
* The semantics of Variation 0 have been cleaned up. Variation 0 is the
* "Default Variation". It is used only in Master -> Slave read commands
* to request the data in whatever variation the Slave is configured to use by
* default. Decoder strings have been added to the Binary Output and
* Analog Output objects (10 and 40) so that group read commands will
* decode properly.
*
* Roy M. Silvernail <roy@rant-central.com> 01/05/2009
*
*/
/***************************************************************************/
/* DNP 3.0 Constants */
/***************************************************************************/
#define DNP_HDR_LEN 10
#define TCP_PORT_DNP 20000
#define UDP_PORT_DNP 20000
/***************************************************************************/
/* Datalink and Transport Layer Bit-Masks */
/***************************************************************************/
#define DNP3_CTL_DIR 0x80
#define DNP3_CTL_PRM 0x40
#define DNP3_CTL_FCB 0x20
#define DNP3_CTL_FCV 0x10
#define DNP3_CTL_RES 0x20
#define DNP3_CTL_DFC 0x10
#define DNP3_CTL_FUNC 0x0f
#define DNP3_TR_FIR 0x40
#define DNP3_TR_FIN 0x80
#define DNP3_TR_SEQ 0x3f
#define AL_MAX_CHUNK_SIZE 16
/***************************************************************************/
/* Data Link Function codes */
/***************************************************************************/
/* Primary to Secondary */
#define DL_FUNC_RESET_LINK 0x00
#define DL_FUNC_RESET_PROC 0x01
#define DL_FUNC_TEST_LINK 0x02
#define DL_FUNC_USER_DATA 0x03
#define DL_FUNC_UNC_DATA 0x04
#define DL_FUNC_LINK_STAT 0x09
/* Secondary to Primary */
#define DL_FUNC_ACK 0x00
#define DL_FUNC_NACK 0x01
#define DL_FUNC_STAT_LINK 0x0B
#define DL_FUNC_NO_FUNC 0x0E
#define DL_FUNC_NOT_IMPL 0x0F
/***************************************************************************/
/* Application Layer Bit-Masks */
/***************************************************************************/
#define DNP3_AL_UNS 0x10
#define DNP3_AL_CON 0x20
#define DNP3_AL_FIN 0x40
#define DNP3_AL_FIR 0x80
#define DNP3_AL_SEQ 0x0f
#define DNP3_AL_FUNC 0xff
/***************************************************************************/
/* Application Layer Function codes */
/***************************************************************************/
#define AL_FUNC_CONFIRM 0x00 /* 00 - Confirm */
#define AL_FUNC_READ 0x01 /* 01 - Read */
#define AL_FUNC_WRITE 0x02 /* 02 - Write */
#define AL_FUNC_SELECT 0x03 /* 03 - Select */
#define AL_FUNC_OPERATE 0x04 /* 04 - Operate */
#define AL_FUNC_DIROP 0x05 /* 05 - Direct Operate */
#define AL_FUNC_DIROPNACK 0x06 /* 06 - Direct Operate No ACK */
#define AL_FUNC_FRZ 0x07 /* 07 - Immediate Freeze */
#define AL_FUNC_FRZNACK 0x08 /* 08 - Immediate Freeze No ACK */
#define AL_FUNC_FRZCLR 0x09 /* 09 - Freeze and Clear */
#define AL_FUNC_FRZCLRNACK 0x0A /* 10 - Freeze and Clear No ACK */
#define AL_FUNC_FRZT 0x0B /* 11 - Freeze With Time */
#define AL_FUNC_FRZTNACK 0x0C /* 12 - Freeze With Time No ACK */
#define AL_FUNC_COLDRST 0x0D /* 13 - Cold Restart */
#define AL_FUNC_WARMRST 0x0E /* 14 - Warm Restart */
#define AL_FUNC_INITDATA 0x0F /* 15 - Initialize Data */
#define AL_FUNC_INITAPP 0x10 /* 16 - Initialize Application */
#define AL_FUNC_STARTAPP 0x11 /* 17 - Start Application */
#define AL_FUNC_STOPAPP 0x12 /* 18 - Stop Application */
#define AL_FUNC_SAVECFG 0x13 /* 19 - Save Configuration */
#define AL_FUNC_ENSPMSG 0x14 /* 20 - Enable Spontaneous Msg */
#define AL_FUNC_DISSPMSG 0x15 /* 21 - Disable Spontaneous Msg */
#define AL_FUNC_ASSIGNCL 0x16 /* 22 - Assign Classes */
#define AL_FUNC_DELAYMST 0x17 /* 23 - Delay Measurement */
#define AL_FUNC_RECCT 0x18 /* 24 - Record Current Time */
#define AL_FUNC_OPENFILE 0x19 /* 25 - Open File */
#define AL_FUNC_CLOSEFILE 0x1A /* 26 - Close File */
#define AL_FUNC_DELETEFILE 0x1B /* 27 - Delete File */
#define AL_FUNC_GETFILEINF 0x1C /* 28 - Get File Info */
#define AL_FUNC_AUTHFILE 0x1D /* 29 - Authenticate File */
#define AL_FUNC_ABORTFILE 0x1E /* 30 - Abort File */
#define AL_FUNC_ACTCNF 0x1F /* 31 - Activate Config */
#define AL_FUNC_AUTHREQ 0x20 /* 32 - Authentication Request */
#define AL_FUNC_AUTHERR 0x21 /* 33 - Authentication Error */
#define AL_FUNC_RESPON 0x81 /* 129 - Response */
#define AL_FUNC_UNSOLI 0x82 /* 130 - Unsolicited Response */
#define AL_FUNC_AUTHRESP 0x83 /* 131 - Authentication Response */
/***************************************************************************/
/* Application Layer Internal Indication (IIN) bits */
/* 2 Bytes, message formatting: [First Octet] | [Second Octet] */
/***************************************************************************/
/* Octet 1 */
#define AL_IIN_BMSG 0x0100 /* Bit 0 - Broadcast message rx'd */
#define AL_IIN_CLS1D 0x0200 /* Bit 1 - Class 1 Data Available */
#define AL_IIN_CLS2D 0x0400 /* Bit 2 - Class 2 Data Available */
#define AL_IIN_CLS3D 0x0800 /* Bit 3 - Class 3 Data Available */
#define AL_IIN_TSR 0x1000 /* Bit 4 - Time Sync Req'd from Master */
#define AL_IIN_DOL 0x2000 /* Bit 5 - Outputs in Local Mode */
#define AL_IIN_DT 0x4000 /* Bit 6 - Device Trouble */
#define AL_IIN_RST 0x8000 /* Bit 7 - Device Restart */
/* Octet 2 */
#define AL_IIN_FCNI 0x0001 /* Bit 0 - Function code not implemented */
#define AL_IIN_OBJU 0x0002 /* Bit 1 - Requested Objects Unknown */
#define AL_IIN_PIOOR 0x0004 /* Bit 2 - Parameters Invalid or Out of Range */
#define AL_IIN_EBO 0x0008 /* Bit 3 - Event Buffer Overflow */
#define AL_IIN_OAE 0x0010 /* Bit 4 - Operation Already Executing */
#define AL_IIN_CC 0x0020 /* Bit 5 - Device Configuration Corrupt */
/* 0x0040 Bit 6 - Reserved */
/* 0x0080 Bit 7 - Reserved */
/***************************************************************************/
/* Application Layer Data Object Qualifier */
/***************************************************************************/
/* Bit-Masks */
#define AL_OBJQ_PREFIX 0x70 /* x111xxxx Masks Prefix from Qualifier */
#define AL_OBJQ_RANGE 0x0F /* xxxx1111 Masks Range from Qualifier */
/* Index Size (3-bits x111xxxx) */
/* When Qualifier Code != 11 */
#define AL_OBJQL_PREFIX_NI 0x00 /* Objects are Packed with no index */
#define AL_OBJQL_PREFIX_1O 0x01 /* Objects are prefixed w/ 1-octet index */
#define AL_OBJQL_PREFIX_2O 0x02 /* Objects are prefixed w/ 2-octet index */
#define AL_OBJQL_PREFIX_4O 0x03 /* Objects are prefixed w/ 4-octet index */
#define AL_OBJQL_PREFIX_1OS 0x04 /* Objects are prefixed w/ 1-octet object size */
#define AL_OBJQL_PREFIX_2OS 0x05 /* Objects are prefixed w/ 2-octet object size */
#define AL_OBJQL_PREFIX_4OS 0x06 /* Objects are prefixed w/ 4-octet object size */
/* When Qualifier Code == 11 */
#define AL_OBJQL_IDX11_1OIS 0x01 /* 1 octet identifier size */
#define AL_OBJQL_IDX11_2OIS 0x02 /* 2 octet identifier size */
#define AL_OBJQL_IDX11_4OIS 0x03 /* 4 octet identifier size */
/* Qualifier Code (4-bits) */
/* 4-bits ( xxxx1111 ) */
#define AL_OBJQL_RANGE_SSI8 0x00 /* 00 8-bit Start and Stop Indices in Range Field */
#define AL_OBJQL_RANGE_SSI16 0x01 /* 01 16-bit Start and Stop Indices in Range Field */
#define AL_OBJQL_RANGE_SSI32 0x02 /* 02 32-bit Start and Stop Indices in Range Field */
#define AL_OBJQL_RANGE_AA8 0x03 /* 03 8-bit Absolute Address in Range Field */
#define AL_OBJQL_RANGE_AA16 0x04 /* 04 16-bit Absolute Address in Range Field */
#define AL_OBJQL_RANGE_AA32 0x05 /* 05 32-bit Absolute Address in Range Field */
#define AL_OBJQL_RANGE_R0 0x06 /* 06 Length of Range field is 0 (no range field) */
#define AL_OBJQL_RANGE_SF8 0x07 /* 07 8-bit Single Field Quantity */
#define AL_OBJQL_RANGE_SF16 0x08 /* 08 16-bit Single Field Quantity */
#define AL_OBJQL_RANGE_SF32 0x09 /* 09 32-bit Single Field Quantity */
/* 0x0A 10 Reserved */
#define AL_OBJQL_RANGE_FF 0x0B /* 11 Free-format Qualifier, range field has 1 octet count of objects */
/* 0x0C 12 Reserved */
/* 0x0D 13 Reserved */
/* 0x0E 14 Reserved */
/* 0x0F 15 Reserved */
/***************************************************************************/
/* Application Layer Data Object Definitions */
/***************************************************************************/
/* Device Attributes */
#define AL_OBJ_DA_GRP 0x0000 /* 00 00 Device Attributes Group and null variation */
#define AL_OBJ_DA_USR_ATTR 0x00D3 /* 00 211 Device Attributes - Identifier of support for user-specific attributes */
#define AL_OBJ_DA_MSTR_DSP 0x00D4 /* 00 212 Device Attributes - Number of master-defined data set prototypes */
#define AL_OBJ_DA_OS_DSP 0x00D5 /* 00 213 Device Attributes - Number of outstation-defined data set prototypes */
#define AL_OBJ_DA_MSTR_DS 0x00D6 /* 00 214 Device Attributes - Number of master-defined data sets */
#define AL_OBJ_DA_OS_DS 0x00D7 /* 00 215 Device Attributes - Number of outstation-defined data sets */
#define AL_OBJ_DA_BO_REQ 0x00D8 /* 00 216 Device Attributes - Max number of binary outputs per request */
#define AL_OBJ_DA_LOC_TA 0x00D9 /* 00 217 Device Attributes - Local timing accuracy */
#define AL_OBJ_DA_DUR_TA 0x00DA /* 00 218 Device Attributes - Duration of timing accuraccy */
#define AL_OBJ_DA_AO_EVT 0x00DB /* 00 219 Device Attributes - Support for analog output events */
#define AL_OBJ_DA_MAX_AO 0x00DC /* 00 220 Device Attributes - Max analog output index */
#define AL_OBJ_DA_NUM_AO 0x00DD /* 00 221 Device Attributes - Number of analog outputs */
#define AL_OBJ_DA_BO_EVT 0x00DE /* 00 222 Device Attributes - Support for binary output events */
#define AL_OBJ_DA_MAX_BO 0x00DF /* 00 223 Device Attributes - Max binary output index */
#define AL_OBJ_DA_NUM_BO 0x00E0 /* 00 224 Device Attributes - Number of binary outputs */
#define AL_OBJ_DA_FCTR_EVT 0x00E1 /* 00 225 Device Attributes - Support for frozen counter events */
#define AL_OBJ_DA_FCTR 0x00E2 /* 00 226 Device Attributes - Support for frozen counters */
#define AL_OBJ_DA_CTR_EVT 0x00E3 /* 00 227 Device Attributes - Support for counter events */
#define AL_OBJ_DA_MAX_CTR 0x00E4 /* 00 228 Device Attributes - Max counter index */
#define AL_OBJ_DA_NUM_CTR 0x00E5 /* 00 229 Device Attributes - Number of counter points */
#define AL_OBJ_DA_AIF 0x00E6 /* 00 230 Device Attributes - Support for frozen analog inputs */
#define AL_OBJ_DA_AI_EVT 0x00E7 /* 00 231 Device Attributes - Support for analog input events */
#define AL_OBJ_DA_MAX_AI 0x00E8 /* 00 232 Device Attributes - Maximum analog input index */
#define AL_OBJ_DA_NUM_AI 0x00E9 /* 00 233 Device Attributes - Number of analog input points */
#define AL_OBJ_DA_2BI_EVT 0x00EA /* 00 234 Device Attributes - Support for Double-Bit BI Events */
#define AL_OBJ_DA_MAX_2BI 0x00EB /* 00 235 Device Attributes - Max Double-bit BI Point Index */
#define AL_OBJ_DA_NUM_2BI 0x00EC /* 00 236 Device Attributes - Number of Double-bit BI Points */
#define AL_OBJ_DA_BI_EVT 0x00ED /* 00 237 Device Attributes - Support for Binary Input Events */
#define AL_OBJ_DA_MAX_BI 0x00EE /* 00 238 Device Attributes - Max Binary Input Point Index */
#define AL_OBJ_DA_NUM_BI 0x00EF /* 00 239 Device Attributes - Number of Binary Input Points */
#define AL_OBJ_DA_MXTX_FR 0x00F0 /* 00 240 Device Attributes - Maximum Transmit Fragment Size */
#define AL_OBJ_DA_MXRX_FR 0x00F1 /* 00 241 Device Attributes - Maximum Receive Fragment Size */
#define AL_OBJ_DA_SWVER 0x00F2 /* 00 242 Device Attributes - Device Manufacturers SW Version */
#define AL_OBJ_DA_HWVER 0x00F3 /* 00 243 Device Attributes - Device Manufacturers HW Version */
/* 00 244 Future Assignment */
#define AL_OBJ_DA_LOC 0x00F5 /* 00 245 Device Attributes - User-Assigned Location */
#define AL_OBJ_DA_ID 0x00F6 /* 00 246 Device Attributes - User-Assigned ID code/number */
#define AL_OBJ_DA_DEVNAME 0x00F7 /* 00 247 Device Attributes - User-Assigned Device Name */
#define AL_OBJ_DA_SERNUM 0x00F8 /* 00 248 Device Attributes - Device Serial Number */
#define AL_OBJ_DA_CONF 0x00F9 /* 00 249 Device Attributes - DNP Subset and Conformance */
#define AL_OBJ_DA_PROD 0x00FA /* 00 250 Device Attributes - Device Product Name and Model */
/* 00 251 Future Assignment */
#define AL_OBJ_DA_MFG 0x00FC /* 00 252 Device Attributes - Device Manufacturers Name */
/* 00 253 Future Assignment */
#define AL_OBJ_DA_ALL 0x00FE /* 00 254 Device Attributes - Non-specific All-attributes Req */
#define AL_OBJ_DA_LVAR 0x00FF /* 00 255 Device Attributes - List of Attribute Variations */
/* Binary Input Objects */
#define AL_OBJ_BI_ALL 0x0100 /* 01 00 Binary Input Default Variation */
#define AL_OBJ_BI_1BIT 0x0101 /* 01 01 Single-bit Binary Input */
#define AL_OBJ_BI_STAT 0x0102 /* 01 02 Binary Input With Status */
#define AL_OBJ_BIC_ALL 0x0200 /* 02 00 Binary Input Change Default Variation */
#define AL_OBJ_BIC_NOTIME 0x0201 /* 02 01 Binary Input Change Without Time */
#define AL_OBJ_BIC_TIME 0x0202 /* 02 02 Binary Input Change With Time */
#define AL_OBJ_BIC_RTIME 0x0203 /* 02 03 Binary Input Change With Relative Time */
/* Double-bit Input Objects */
#define AL_OBJ_2BI_ALL 0x0300 /* 03 00 Double-bit Input Default Variation */
#define AL_OBJ_2BI_NF 0x0301 /* 03 01 Double-bit Input No Flags */
#define AL_OBJ_2BI_STAT 0x0302 /* 03 02 Double-bit Input With Status */
#define AL_OBJ_2BIC_ALL 0x0400 /* 04 00 Double-bit Input Change Default Variation */
#define AL_OBJ_2BIC_NOTIME 0x0401 /* 04 01 Double-bit Input Change Without Time */
#define AL_OBJ_2BIC_TIME 0x0402 /* 04 02 Double-bit Input Change With Time */
#define AL_OBJ_2BIC_RTIME 0x0403 /* 04 03 Double-bit Input Change With Relative Time */
/* Binary Input Quality Flags */
#define AL_OBJ_BI_FLAG0 0x0001 /* Point Online (0=Offline; 1=Online) */
#define AL_OBJ_BI_FLAG1 0x0002 /* Restart (0=Normal; 1=Restart) */
#define AL_OBJ_BI_FLAG2 0x0004 /* Comms Lost (0=Normal; 1=Lost) */
#define AL_OBJ_BI_FLAG3 0x0008 /* Remote Force (0=Normal; 1=Forced) */
#define AL_OBJ_BI_FLAG4 0x0010 /* Local Force (0=Normal; 1=Forced) */
#define AL_OBJ_BI_FLAG5 0x0020 /* Chatter Filter (0=Normal; 1=Filter On) */
#define AL_OBJ_BI_FLAG6 0x0040 /* Double-bit LSB (0=Off; 1=On) */
#define AL_OBJ_BI_FLAG7 0x0080 /* Point State (0=Off; 1=On) or Double-bit MSB */
/***************************************************************************/
/* Binary Output Objects */
#define AL_OBJ_BO_ALL 0x0A00 /* 10 00 Binary Output Default Variation */
#define AL_OBJ_BO 0x0A01 /* 10 01 Binary Output */
#define AL_OBJ_BO_STAT 0x0A02 /* 10 02 Binary Output Status */
#define AL_OBJ_BOC_ALL 0x0B00 /* 11 00 Binary Output Change Default Variation */
#define AL_OBJ_BOC_NOTIME 0x0B01 /* 11 01 Binary Output Change Without Time */
#define AL_OBJ_BOC_TIME 0x0B02 /* 11 02 Binary Output Change With Time */
#define AL_OBJ_CTLOP_BLK 0x0C01 /* 12 01 Control Relay Output Block */
#define AL_OBJ_CTL_PCB 0x0C02 /* 12 02 Pattern Control Block */
#define AL_OBJ_CTL_PMASK 0x0C03 /* 12 03 Pattern Mask */
#define AL_OBJ_BOE_NOTIME 0x0D01 /* 13 01 Binary Output Command Event Without Time */
#define AL_OBJ_BOE_TIME 0x0D02 /* 13 02 Binary Output Command Event With Time */
#define AL_OBJCTLC_CODE 0x0F /* Bit-Mask xxxx1111 for Control Code 'Code' */
#define AL_OBJCTLC_MISC 0x30 /* Bit-Mask xx11xxxx for Control Code Queue (obsolete) and Clear Fields */
#define AL_OBJCTLC_TC 0xC0 /* Bit-Mask 11xxxxxx for Control Code 'Trip/Close' */
#define AL_OBJCTLC_CODE0 0x00 /* xxxx0000 NUL Operation; only process R attribute */
#define AL_OBJCTLC_CODE1 0x01 /* xxxx0001 Pulse On ^On-Time -> vOff-Time, remain off */
#define AL_OBJCTLC_CODE2 0x02 /* xxxx0010 Pulse Off vOff-Time -> ^On-Time, remain on */
#define AL_OBJCTLC_CODE3 0x03 /* xxxx0011 Latch On */
#define AL_OBJCTLC_CODE4 0x04 /* xxxx0100 Latch Off */
/* 0x05-0x15 Reserved */
#define AL_OBJCTLC_NOTSET 0x00 /* xx00xxxx for Control Code, Clear and Queue not set */
#define AL_OBJCTLC_QUEUE 0x01 /* xxx1xxxx for Control Code, Clear Field 'Queue' */
#define AL_OBJCTLC_CLEAR 0x02 /* xx1xxxxx for Control Code, Clear Field 'Clear' */
#define AL_OBJCTLC_BOTHSET 0x03 /* xx11xxxx for Control Code, Clear and Queue both set */
#define AL_OBJCTLC_TC0 0x00 /* 00xxxxxx NUL */
#define AL_OBJCTLC_TC1 0x01 /* 01xxxxxx Close */
#define AL_OBJCTLC_TC2 0x02 /* 10xxxxxx Trip */
#define AL_OBJCTLC_TC3 0x03 /* 11xxxxxx Reserved */
#define AL_OBJCTL_STAT0 0x00 /* Request Accepted, Initiated or Queued */
#define AL_OBJCTL_STAT1 0x01 /* Request Not Accepted; Arm-timer expired */
#define AL_OBJCTL_STAT2 0x02 /* Request Not Accepted; No 'SELECT' rx'd */
#define AL_OBJCTL_STAT3 0x03 /* Request Not Accepted; Format errors in ctrl request */
#define AL_OBJCTL_STAT4 0x04 /* Control Operation Not Supported for this point */
#define AL_OBJCTL_STAT5 0x05 /* Request Not Accepted; Ctrl Queue full or pt. active */
#define AL_OBJCTL_STAT6 0x06 /* Request Not Accepted; Ctrl HW Problems */
#define AL_OBJCTL_STAT7 0x07 /* Request Not Accepted; Local/Remote switch in Local*/
#define AL_OBJCTL_STAT8 0x08 /* Request Not Accepted; Too many operations requested */
#define AL_OBJCTL_STAT9 0x09 /* Request Not Accepted; Insufficient authorization */
#define AL_OBJCTL_STAT10 0x0A /* Request Not Accepted; Local automation proc active */
#define AL_OBJCTL_STAT11 0x0B /* Request Not Accepted; Processing limited */
#define AL_OBJCTL_STAT12 0x0C /* Request Not Accepted; Out of range value */
#define AL_OBJCTL_STAT126 0x7E /* Non Participating (NOP request) */
#define AL_OBJCTL_STAT127 0x7F /* Request Not Accepted; Undefined error */
#define AL_OBJCTL_STATUS_MASK 0x7F
/* Binary Output Quality Flags */
#define AL_OBJ_BO_FLAG0 0x0001 /* Point Online (0=Offline; 1=Online) */
#define AL_OBJ_BO_FLAG1 0x0002 /* Restart (0=Normal; 1=Restart) */
#define AL_OBJ_BO_FLAG2 0x0004 /* Comms Lost (0=Normal; 1=Lost) */
#define AL_OBJ_BO_FLAG3 0x0008 /* Remote Force (0=Normal; 1=Forced) */
#define AL_OBJ_BO_FLAG4 0x0010 /* Local Force (0=Normal; 1=Forced) */
#define AL_OBJ_BO_FLAG5 0x0020 /* Reserved */
#define AL_OBJ_BO_FLAG6 0x0040 /* Reserved */
#define AL_OBJ_BO_FLAG7 0x0080 /* Point State (0=Off; 1=On) */
/***************************************************************************/
/* Counter Objects */
#define AL_OBJ_CTR_ALL 0x1400 /* 20 00 Binary Counter Default Variation */
#define AL_OBJ_CTR_32 0x1401 /* 20 01 32-Bit Binary Counter */
#define AL_OBJ_CTR_16 0x1402 /* 20 02 16-Bit Binary Counter */
#define AL_OBJ_DCTR_32 0x1403 /* 20 03 32-Bit Delta Counter */
#define AL_OBJ_DCTR_16 0x1404 /* 20 04 16-Bit Delta Counter */
#define AL_OBJ_CTR_32NF 0x1405 /* 20 05 32-Bit Binary Counter Without Flag */
#define AL_OBJ_CTR_16NF 0x1406 /* 20 06 16-Bit Binary Counter Without Flag */
#define AL_OBJ_DCTR_32NF 0x1407 /* 20 07 32-Bit Delta Counter Without Flag */
#define AL_OBJ_DCTR_16NF 0x1408 /* 20 08 16-Bit Delta Counter Without Flag */
#define AL_OBJ_FCTR_ALL 0x1500 /* 21 00 Frozen Binary Counter Default Variation */
#define AL_OBJ_FCTR_32 0x1501 /* 21 01 32-Bit Frozen Counter */
#define AL_OBJ_FCTR_16 0x1502 /* 21 02 16-Bit Frozen Counter */
#define AL_OBJ_FDCTR_32 0x1503 /* 21 03 32-Bit Frozen Delta Counter */
#define AL_OBJ_FDCTR_16 0x1504 /* 21 04 16-Bit Frozen Delta Counter */
#define AL_OBJ_FCTR_32T 0x1505 /* 21 05 32-Bit Frozen Counter w/ Time of Freeze */
#define AL_OBJ_FCTR_16T 0x1506 /* 21 06 16-Bit Frozen Counter w/ Time of Freeze */
#define AL_OBJ_FDCTR_32T 0x1507 /* 21 07 32-Bit Frozen Delta Counter w/ Time of Freeze */
#define AL_OBJ_FDCTR_16T 0x1508 /* 21 08 16-Bit Frozen Delta Counter w/ Time of Freeze */
#define AL_OBJ_FCTR_32NF 0x1509 /* 21 09 32-Bit Frozen Counter Without Flag */
#define AL_OBJ_FCTR_16NF 0x150A /* 21 10 16-Bit Frozen Counter Without Flag */
#define AL_OBJ_FDCTR_32NF 0x150B /* 21 11 32-Bit Frozen Delta Counter Without Flag */
#define AL_OBJ_FDCTR_16NF 0x150C /* 21 12 16-Bit Frozen Delta Counter Without Flag */
#define AL_OBJ_CTRC_ALL 0x1600 /* 22 00 Counter Change Event Default Variation */
#define AL_OBJ_CTRC_32 0x1601 /* 22 01 32-Bit Counter Change Event w/o Time */
#define AL_OBJ_CTRC_16 0x1602 /* 22 02 16-Bit Counter Change Event w/o Time */
#define AL_OBJ_DCTRC_32 0x1603 /* 22 03 32-Bit Delta Counter Change Event w/o Time */
#define AL_OBJ_DCTRC_16 0x1604 /* 22 04 16-Bit Delta Counter Change Event w/o Time */
#define AL_OBJ_CTRC_32T 0x1605 /* 22 05 32-Bit Counter Change Event with Time */
#define AL_OBJ_CTRC_16T 0x1606 /* 22 06 16-Bit Counter Change Event with Time */
#define AL_OBJ_DCTRC_32T 0x1607 /* 22 07 32-Bit Delta Counter Change Event with Time */
#define AL_OBJ_DCTRC_16T 0x1608 /* 22 08 16-Bit Delta Counter Change Event with Time */
#define AL_OBJ_FCTRC_ALL 0x1700 /* 21 00 Frozen Binary Counter Change Event Default Variation */
#define AL_OBJ_FCTRC_32 0x1701 /* 21 01 32-Bit Frozen Counter Change Event */
#define AL_OBJ_FCTRC_16 0x1702 /* 21 02 16-Bit Frozen Counter Change Event */
#define AL_OBJ_FDCTRC_32 0x1703 /* 21 03 32-Bit Frozen Delta Counter Change Event */
#define AL_OBJ_FDCTRC_16 0x1704 /* 21 04 16-Bit Frozen Delta Counter Change Event */
#define AL_OBJ_FCTRC_32T 0x1705 /* 21 05 32-Bit Frozen Counter Change Event w/ Time of Freeze */
#define AL_OBJ_FCTRC_16T 0x1706 /* 21 06 16-Bit Frozen Counter Change Event w/ Time of Freeze */
#define AL_OBJ_FDCTRC_32T 0x1707 /* 21 07 32-Bit Frozen Delta Counter Change Event w/ Time of Freeze */
#define AL_OBJ_FDCTRC_16T 0x1708 /* 21 08 16-Bit Frozen Delta Counter Change Event w/ Time of Freeze */
/* Counter Quality Flags */
#define AL_OBJ_CTR_FLAG0 0x0001 /* Point Online (0=Offline; 1=Online) */
#define AL_OBJ_CTR_FLAG1 0x0002 /* Restart (0=Normal; 1=Restart) */
#define AL_OBJ_CTR_FLAG2 0x0004 /* Comms Lost (0=Normal; 1=Lost) */
#define AL_OBJ_CTR_FLAG3 0x0008 /* Remote Force (0=Normal; 1=Forced) */
#define AL_OBJ_CTR_FLAG4 0x0010 /* Local Force (0=Normal; 1=Forced) */
#define AL_OBJ_CTR_FLAG5 0x0020 /* Roll-over (0=Normal; 1=Roll-Over) */
#define AL_OBJ_CTR_FLAG6 0x0040 /* Discontinuity (0=Normal; 1=Discontinuity) */
#define AL_OBJ_CTR_FLAG7 0x0080 /* Reserved */
/***************************************************************************/
/* Analog Input Objects */
#define AL_OBJ_AI_ALL 0x1E00 /* 30 00 Analog Input Default Variation */
#define AL_OBJ_AI_32 0x1E01 /* 30 01 32-Bit Analog Input */
#define AL_OBJ_AI_16 0x1E02 /* 30 02 16-Bit Analog Input */
#define AL_OBJ_AI_32NF 0x1E03 /* 30 03 32-Bit Analog Input Without Flag */
#define AL_OBJ_AI_16NF 0x1E04 /* 30 04 16-Bit Analog Input Without Flag */
#define AL_OBJ_AI_FLT 0x1E05 /* 30 05 32-Bit Floating Point Input */
#define AL_OBJ_AI_DBL 0x1E06 /* 30 06 64-Bit Floating Point Input */
/* 0x1F01 31 01 32-Bit Frozen Analog Input */
/* 0x1F02 31 02 16-Bit Frozen Analog Input */
/* 0x1F03 31 03 32-Bit Frozen Analog Input w/ Time of Freeze */
/* 0x1F04 31 04 16-Bit Frozen Analog Input w/ Time of Freeze */
/* 0x1F05 31 05 32-Bit Frozen Analog Input Without Flag */
/* 0x1F06 31 06 16-Bit Frozen Analog Input Without Flag */
#define AL_OBJ_AIF_FLT 0x1F07 /* 31 07 32-Bit Frozen Floating Point Input */
#define AL_OBJ_AIF_DBL 0x1F08 /* 31 08 64-Bit Frozen Floating Point Input */
#define AL_OBJ_AIC_ALL 0x2000 /* 32 00 Analog Input Change Default Variation */
#define AL_OBJ_AIC_32NT 0x2001 /* 32 01 32-Bit Analog Change Event w/o Time */
#define AL_OBJ_AIC_16NT 0x2002 /* 32 02 16-Bit Analog Change Event w/o Time */
#define AL_OBJ_AIC_32T 0x2003 /* 32 03 32-Bit Analog Change Event w/ Time */
#define AL_OBJ_AIC_16T 0x2004 /* 32 04 16-Bit Analog Change Event w/ Time */
#define AL_OBJ_AIC_FLTNT 0x2005 /* 32 05 32-Bit Floating Point Change Event w/o Time*/
#define AL_OBJ_AIC_DBLNT 0x2006 /* 32 06 64-Bit Floating Point Change Event w/o Time*/
#define AL_OBJ_AIC_FLTT 0x2007 /* 32 07 32-Bit Floating Point Change Event w/ Time*/
#define AL_OBJ_AIC_DBLT 0x2008 /* 32 08 64-Bit Floating Point Change Event w/ Time*/
/* 0x2101 33 01 32-Bit Frozen Analog Event w/o Time */
/* 0x2102 33 02 16-Bit Frozen Analog Event w/o Time */
/* 0x2103 33 03 32-Bit Frozen Analog Event w/ Time */
/* 0x2104 33 04 16-Bit Frozen Analog Event w/ Time */
#define AL_OBJ_AIFC_FLTNT 0x2105 /* 33 05 32-Bit Floating Point Frozen Change Event w/o Time*/
#define AL_OBJ_AIFC_DBLNT 0x2106 /* 33 06 64-Bit Floating Point Frozen Change Event w/o Time*/
#define AL_OBJ_AIFC_FLTT 0x2107 /* 33 07 32-Bit Floating Point Frozen Change Event w/ Time*/
#define AL_OBJ_AIFC_DBLT 0x2108 /* 33 08 64-Bit Floating Point Frozen Change Event w/ Time*/
/* Analog Input Quality Flags */
#define AL_OBJ_AI_FLAG0 0x0001 /* Point Online (0=Offline; 1=Online) */
#define AL_OBJ_AI_FLAG1 0x0002 /* Restart (0=Normal; 1=Restart) */
#define AL_OBJ_AI_FLAG2 0x0004 /* Comms Lost (0=Normal; 1=Lost) */
#define AL_OBJ_AI_FLAG3 0x0008 /* Remote Force (0=Normal; 1=Forced) */
#define AL_OBJ_AI_FLAG4 0x0010 /* Local Force (0=Normal; 1=Forced) */
#define AL_OBJ_AI_FLAG5 0x0020 /* Over-Range (0=Normal; 1=Over-Range) */
#define AL_OBJ_AI_FLAG6 0x0040 /* Reference Check (0=Normal; 1=Error) */
#define AL_OBJ_AI_FLAG7 0x0080 /* Reserved */
#define AL_OBJ_AIDB_ALL 0x2200 /* 34 00 Analog Input Deadband Default Variation */
#define AL_OBJ_AIDB_16 0x2201 /* 34 01 16-Bit Analog Input Deadband */
#define AL_OBJ_AIDB_32 0x2202 /* 34 02 32-Bit Analog Input Deadband */
#define AL_OBJ_AIDB_FLT 0x2203 /* 34 03 Floating Point Analog Input Deadband */
/***************************************************************************/
/* Analog Output Objects */
#define AL_OBJ_AO_ALL 0x2800 /* 40 00 Analog Output Default Variation */
#define AL_OBJ_AO_32 0x2801 /* 40 01 32-Bit Analog Output Status */
#define AL_OBJ_AO_16 0x2802 /* 40 02 16-Bit Analog Output Status */
#define AL_OBJ_AO_FLT 0x2803 /* 40 03 32-Bit Floating Point Output Status */
#define AL_OBJ_AO_DBL 0x2804 /* 40 04 64-Bit Floating Point Output Status */
#define AL_OBJ_AO_32OPB 0x2901 /* 41 01 32-Bit Analog Output Block */
#define AL_OBJ_AO_16OPB 0x2902 /* 41 02 16-Bit Analog Output Block */
#define AL_OBJ_AO_FLTOPB 0x2903 /* 41 03 32-Bit Floating Point Output Block */
#define AL_OBJ_AO_DBLOPB 0x2904 /* 41 04 64-Bit Floating Point Output Block */
#define AL_OBJ_AOC_ALL 0x2A00 /* 42 00 Analog Output Event Default Variation */
#define AL_OBJ_AOC_32NT 0x2A01 /* 42 01 32-Bit Analog Output Event w/o Time */
#define AL_OBJ_AOC_16NT 0x2A02 /* 42 02 16-Bit Analog Output Event w/o Time */
#define AL_OBJ_AOC_32T 0x2A03 /* 42 03 32-Bit Analog Output Event w/ Time */
#define AL_OBJ_AOC_16T 0x2A04 /* 42 04 16-Bit Analog Output Event w/ Time */
#define AL_OBJ_AOC_FLTNT 0x2A05 /* 42 05 32-Bit Floating Point Output Event w/o Time */
#define AL_OBJ_AOC_DBLNT 0x2A06 /* 42 06 64-Bit Floating Point Output Event w/o Time */
#define AL_OBJ_AOC_FLTT 0x2A07 /* 42 07 32-Bit Floating Point Output Event w/ Time */
#define AL_OBJ_AOC_DBLT 0x2A08 /* 42 08 64-Bit Floating Point Output Event w/ Time */
#define AL_OBJ_AOC_32EVNT 0x2B01 /* 43 01 32-Bit Analog Output Command Event w/o Time */
#define AL_OBJ_AOC_16EVNT 0x2B02 /* 43 02 16-Bit Analog Output Command Event w/o Time */
#define AL_OBJ_AOC_32EVTT 0x2B03 /* 43 03 32-Bit Analog Output Command Event w/ Time */
#define AL_OBJ_AOC_16EVTT 0x2B04 /* 43 04 16-Bit Analog Output Command Event w/ Time */
#define AL_OBJ_AOC_FLTEVNT 0x2B05 /* 43 05 32-Bit Floating Point Analog Output Command Event w/o Time */
#define AL_OBJ_AOC_DBLEVNT 0x2B06 /* 43 06 64-Bit Floating PointAnalog Output Command Event w/o Time */
#define AL_OBJ_AOC_FLTEVTT 0x2B07 /* 43 07 32-Bit Floating Point Analog Output Command Event w/ Time */
#define AL_OBJ_AOC_DBLEVTT 0x2B08 /* 43 08 64-Bit Floating PointAnalog Output Command Event w/ Time */
/* Analog Output Quality Flags */
#define AL_OBJ_AO_FLAG0 0x0001 /* Point Online (0=Offline; 1=Online) */
#define AL_OBJ_AO_FLAG1 0x0002 /* Restart (0=Normal; 1=Restart) */
#define AL_OBJ_AO_FLAG2 0x0004 /* Comms Lost (0=Normal; 1=Lost) */
#define AL_OBJ_AO_FLAG3 0x0008 /* Remote Force (0=Normal; 1=Forced) */
#define AL_OBJ_AO_FLAG4 0x0010 /* Local Force (0=Normal; 1=Forced) */
#define AL_OBJ_AO_FLAG5 0x0020 /* Reserved */
#define AL_OBJ_AO_FLAG6 0x0040 /* Reserved */
#define AL_OBJ_AO_FLAG7 0x0080 /* Reserved */
/***************************************************************************/
/* Time Objects */
#define AL_OBJ_TD_ALL 0x3200 /* 50 00 Time and Date Default Variation */
#define AL_OBJ_TD 0x3201 /* 50 01 Time and Date */
#define AL_OBJ_TDI 0x3202 /* 50 02 Time and Date w/ Interval */
#define AL_OBJ_TDR 0x3203 /* 50 03 Last Recorded Time and Date */
#define AL_OBJ_TDCTO 0x3301 /* 51 01 Time and Date CTO */
#define AL_OBJ_UTDCTO 0x3302 /* 51 02 Unsynchronized Time and Date CTO */
#define AL_OBJ_TDELAYC 0x3401 /* 52 01 Time Delay Coarse */
#define AL_OBJ_TDELAYF 0x3402 /* 52 02 Time Delay Fine */
/***************************************************************************/
/* Class Data Objects */
#define AL_OBJ_CLASS0 0x3C01 /* 60 01 Class 0 Data */
#define AL_OBJ_CLASS1 0x3C02 /* 60 02 Class 1 Data */
#define AL_OBJ_CLASS2 0x3C03 /* 60 03 Class 2 Data */
#define AL_OBJ_CLASS3 0x3C04 /* 60 04 Class 3 Data */
/***************************************************************************/
/* File Objects */
#define AL_OBJ_FILE_CMD 0x4603 /* 70 03 File Control - Command */
#define AL_OBJ_FILE_STAT 0x4604 /* 70 04 File Control - Status */
#define AL_OBJ_FILE_TRANS 0x4605 /* 70 05 File Control - Transport */
#define AL_OBJ_FILE_TRAN_ST 0x4606 /* 70 05 File Control - Transport Status */
/* File Control Mode flags */
#define AL_OBJ_FILE_MODE_NULL 0x00 /* NULL */
#define AL_OBJ_FILE_MODE_READ 0x01 /* READ */
#define AL_OBJ_FILE_MODE_WRITE 0x02 /* WRITE */
#define AL_OBJ_FILE_MODE_APPEND 0x03 /* APPEND */
/***************************************************************************/
/* Device Objects */
#define AL_OBJ_IIN 0x5001 /* 80 01 Internal Indications */
/***************************************************************************/
/* Data Sets */
#define AL_OBJ_DS_PROTO 0x5501 /* 85 01 Data-Set Prototype, with UUID */
#define AL_OBJ_DSD_CONT 0x5601 /* 86 01 Data-Set Descriptor, Data-Set Contents */
#define AL_OBJ_DSD_CHAR 0x5602 /* 86 02 Data-Set Descriptor, Characteristics */
#define AL_OBJ_DSD_PIDX 0x5603 /* 86 03 Data-Set Descriptor, Point Index Attributes */
#define AL_OBJ_DS_PV 0x5701 /* 87 01 Data-Set, Present Value */
#define AL_OBJ_DS_SS 0x5801 /* 88 01 Data-Set, Snapshot */
/***************************************************************************/
/* Octet String Objects */
#define AL_OBJ_OCT 0x6E00 /* 110 xx Octet string */
#define AL_OBJ_OCT_EVT 0x6F00 /* 110 xx Octet string event */
/***************************************************************************/
/* Virtual Terminal Objects */
#define AL_OBJ_VT_OBLK 0x7000 /* 112 xx Virtual Terminal Output Block */
#define AL_OBJ_VT_EVTD 0x7100 /* 113 xx Virtual Terminal Event Data */
/***************************************************************************/
/* End of Application Layer Data Object Definitions */
/***************************************************************************/
void proto_register_dnp3(void);
void proto_reg_handoff_dnp3(void);
/* Initialize the protocol and registered fields */
static int proto_dnp3 = -1;
static int hf_dnp3_start = -1;
static int hf_dnp3_len = -1;
static int hf_dnp3_ctl = -1;
static int hf_dnp3_ctl_prifunc = -1;
static int hf_dnp3_ctl_secfunc = -1;
static int hf_dnp3_ctl_dir = -1;
static int hf_dnp3_ctl_prm = -1;
static int hf_dnp3_ctl_fcb = -1;
static int hf_dnp3_ctl_fcv = -1;
static int hf_dnp3_ctl_dfc = -1;
static int hf_dnp3_dst = -1;
static int hf_dnp3_src = -1;
static int hf_dnp3_addr = -1;
static int hf_dnp_hdr_CRC = -1;
static int hf_dnp_hdr_CRC_bad = -1;
static int hf_dnp3_tr_ctl = -1;
static int hf_dnp3_tr_fin = -1;
static int hf_dnp3_tr_fir = -1;
static int hf_dnp3_tr_seq = -1;
static int hf_dnp3_al_ctl = -1;
static int hf_dnp3_al_fir = -1;
static int hf_dnp3_al_fin = -1;
static int hf_dnp3_al_con = -1;
static int hf_dnp3_al_uns = -1;
static int hf_dnp3_al_seq = -1;
static int hf_dnp3_al_func = -1;
/* Added for Application Layer Decoding */
static int hf_dnp3_al_iin = -1;
static int hf_dnp3_al_iin_bmsg = -1;
static int hf_dnp3_al_iin_cls1d = -1;
static int hf_dnp3_al_iin_cls2d = -1;
static int hf_dnp3_al_iin_cls3d = -1;
static int hf_dnp3_al_iin_tsr = -1;
static int hf_dnp3_al_iin_dol = -1;
static int hf_dnp3_al_iin_dt = -1;
static int hf_dnp3_al_iin_rst = -1;
static int hf_dnp3_al_iin_fcni = -1;
static int hf_dnp3_al_iin_obju = -1;
static int hf_dnp3_al_iin_pioor = -1;
static int hf_dnp3_al_iin_ebo = -1;
static int hf_dnp3_al_iin_oae = -1;
static int hf_dnp3_al_iin_cc = -1;
static int hf_dnp3_al_obj = -1;
static int hf_dnp3_al_objq_prefix = -1;
static int hf_dnp3_al_objq_range = -1;
static int hf_dnp3_al_range_start8 = -1;
static int hf_dnp3_al_range_stop8 = -1;
static int hf_dnp3_al_range_start16 = -1;
static int hf_dnp3_al_range_stop16 = -1;
static int hf_dnp3_al_range_start32 = -1;
static int hf_dnp3_al_range_stop32 = -1;
static int hf_dnp3_al_range_abs8 = -1;
static int hf_dnp3_al_range_abs16 = -1;
static int hf_dnp3_al_range_abs32 = -1;
static int hf_dnp3_al_range_quant8 = -1;
static int hf_dnp3_al_range_quant16 = -1;
static int hf_dnp3_al_range_quant32 = -1;
static int hf_dnp3_al_index8 = -1;
static int hf_dnp3_al_index16 = -1;
static int hf_dnp3_al_index32 = -1;
static int hf_dnp3_al_size8 = -1;
static int hf_dnp3_al_size16 = -1;
static int hf_dnp3_al_size32 = -1;
static int hf_dnp3_bocs_bit = -1;
/*static int hf_dnp3_al_objq = -1;
static int hf_dnp3_al_nobj = -1; */
/* XXX - unused
static int hf_dnp3_al_ptnum = -1; */
static int hf_dnp3_al_biq_b0 = -1;
static int hf_dnp3_al_biq_b1 = -1;
static int hf_dnp3_al_biq_b2 = -1;
static int hf_dnp3_al_biq_b3 = -1;
static int hf_dnp3_al_biq_b4 = -1;
static int hf_dnp3_al_biq_b5 = -1;
static int hf_dnp3_al_biq_b6 = -1;
static int hf_dnp3_al_biq_b7 = -1;
static int hf_dnp3_al_boq_b0 = -1;
static int hf_dnp3_al_boq_b1 = -1;
static int hf_dnp3_al_boq_b2 = -1;
static int hf_dnp3_al_boq_b3 = -1;
static int hf_dnp3_al_boq_b4 = -1;
static int hf_dnp3_al_boq_b5 = -1;
static int hf_dnp3_al_boq_b6 = -1;
static int hf_dnp3_al_boq_b7 = -1;
static int hf_dnp3_al_ctrq_b0 = -1;
static int hf_dnp3_al_ctrq_b1 = -1;
static int hf_dnp3_al_ctrq_b2 = -1;
static int hf_dnp3_al_ctrq_b3 = -1;
static int hf_dnp3_al_ctrq_b4 = -1;
static int hf_dnp3_al_ctrq_b5 = -1;
static int hf_dnp3_al_ctrq_b6 = -1;
static int hf_dnp3_al_ctrq_b7 = -1;
static int hf_dnp3_al_aiq_b0 = -1;
static int hf_dnp3_al_aiq_b1 = -1;
static int hf_dnp3_al_aiq_b2 = -1;
static int hf_dnp3_al_aiq_b3 = -1;
static int hf_dnp3_al_aiq_b4 = -1;
static int hf_dnp3_al_aiq_b5 = -1;
static int hf_dnp3_al_aiq_b6 = -1;
static int hf_dnp3_al_aiq_b7 = -1;
static int hf_dnp3_al_aoq_b0 = -1;
static int hf_dnp3_al_aoq_b1 = -1;
static int hf_dnp3_al_aoq_b2 = -1;
static int hf_dnp3_al_aoq_b3 = -1;
static int hf_dnp3_al_aoq_b4 = -1;
static int hf_dnp3_al_aoq_b5 = -1;
static int hf_dnp3_al_aoq_b6 = -1;
static int hf_dnp3_al_aoq_b7 = -1;
static int hf_dnp3_al_timestamp = -1;
static int hf_dnp3_al_file_perms = -1;
static int hf_dnp3_al_file_perms_read_owner = -1;
static int hf_dnp3_al_file_perms_write_owner = -1;
static int hf_dnp3_al_file_perms_exec_owner = -1;
static int hf_dnp3_al_file_perms_read_group = -1;
static int hf_dnp3_al_file_perms_write_group = -1;
static int hf_dnp3_al_file_perms_exec_group = -1;
static int hf_dnp3_al_file_perms_read_world = -1;
static int hf_dnp3_al_file_perms_write_world = -1;
static int hf_dnp3_al_file_perms_exec_world = -1;
static int hf_dnp3_al_rel_timestamp = -1;
static int hf_dnp3_al_ana16 = -1;
static int hf_dnp3_al_ana32 = -1;
static int hf_dnp3_al_anaflt = -1;
static int hf_dnp3_al_anadbl = -1;
static int hf_dnp3_al_bit = -1;
static int hf_dnp3_al_2bit = -1;
static int hf_dnp3_al_cnt16 = -1;
static int hf_dnp3_al_cnt32 = -1;
static int hf_dnp3_al_ctrlstatus = -1;
static int hf_dnp3_al_anaout16 = -1;
static int hf_dnp3_al_anaout32 = -1;
static int hf_dnp3_al_anaoutflt = -1;
static int hf_dnp3_al_anaoutdbl = -1;
static int hf_dnp3_al_file_mode = -1;
static int hf_dnp3_al_file_auth = -1;
static int hf_dnp3_al_file_size = -1;
static int hf_dnp3_al_file_maxblk = -1;
static int hf_dnp3_al_file_reqID = -1;
static int hf_dnp3_al_file_handle = -1;
static int hf_dnp3_al_file_status = -1;
static int hf_dnp3_al_file_blocknum = -1;
static int hf_dnp3_al_file_lastblock = -1;
static int hf_dnp3_al_file_data = -1;
static int hf_dnp3_ctlobj_code_c = -1;
static int hf_dnp3_ctlobj_code_m = -1;
static int hf_dnp3_ctlobj_code_tc = -1;
static int hf_dnp3_al_datatype = -1;
static int hf_dnp3_al_da_length = -1;
static int hf_dnp3_al_da_int8 = -1;
static int hf_dnp3_al_da_int32 = -1;
/* Generated from convert_proto_tree_add_text.pl */
static int hf_dnp3_al_point_index = -1;
static int hf_dnp3_al_da_value = -1;
static int hf_dnp3_al_count = -1;
static int hf_dnp3_al_on_time = -1;
static int hf_dnp3_al_off_time = -1;
static int hf_dnp3_al_time_delay = -1;
static int hf_dnp3_al_file_string_offset = -1;
static int hf_dnp3_al_file_string_length = -1;
static int hf_dnp3_al_file_name = -1;
static int hf_dnp3_al_octet_string = -1;
static int hf_dnp3_unknown_data_chunk = -1;
static int hf_dnp3_application_chunk = -1;
/***************************************************************************/
/* Value String Look-Ups */
/***************************************************************************/
static const value_string dnp3_ctl_func_pri_vals[] = {
{ DL_FUNC_RESET_LINK, "Reset of Remote Link" },
{ DL_FUNC_RESET_PROC, "Reset of User Process" },
{ DL_FUNC_TEST_LINK, "Test Function For Link" },
{ DL_FUNC_USER_DATA, "User Data" },
{ DL_FUNC_UNC_DATA, "Unconfirmed User Data" },
{ DL_FUNC_LINK_STAT, "Request Link Status" },
{ 0, NULL }
};
static const value_string dnp3_ctl_func_sec_vals[] = {
{ DL_FUNC_ACK, "ACK" },
{ DL_FUNC_NACK, "NACK" },
{ DL_FUNC_STAT_LINK, "Status of Link" },
{ DL_FUNC_NO_FUNC, "Link Service Not Functioning" },
{ DL_FUNC_NOT_IMPL, "Link Service Not Used or Implemented" },
{ 0, NULL }
};
#if 0
static const value_string dnp3_ctl_flags_pri_vals[] = {
{ DNP3_CTL_DIR, "DIR" },
{ DNP3_CTL_PRM, "PRM" },
{ DNP3_CTL_FCB, "FCB" },
{ DNP3_CTL_FCV, "FCV" },
{ 0, NULL }
};
#endif
#if 0
static const value_string dnp3_ctl_flags_sec_vals[]= {
{ DNP3_CTL_DIR, "DIR" },
{ DNP3_CTL_PRM, "PRM" },
{ DNP3_CTL_RES, "RES" },
{ DNP3_CTL_DFC, "DFC" },
{ 0, NULL }
};
#endif
#if 0
static const value_string dnp3_tr_flags_vals[] = {
{ DNP3_TR_FIN, "FIN" },
{ DNP3_TR_FIR, "FIR" },
{ 0, NULL }
};
#endif
#if 0
static const value_string dnp3_al_flags_vals[] = {
{ DNP3_AL_FIR, "FIR" },
{ DNP3_AL_FIN, "FIN" },
{ DNP3_AL_CON, "CON" },
{ DNP3_AL_UNS, "UNS" },
{ 0, NULL }
};
#endif
/* Application Layer Function Code Values */
static const value_string dnp3_al_func_vals[] = {
{ AL_FUNC_CONFIRM, "Confirm" },
{ AL_FUNC_READ, "Read" },
{ AL_FUNC_WRITE, "Write" },
{ AL_FUNC_SELECT, "Select" },
{ AL_FUNC_OPERATE, "Operate" },
{ AL_FUNC_DIROP, "Direct Operate" },
{ AL_FUNC_DIROPNACK, "Direct Operate No Ack" },
{ AL_FUNC_FRZ, "Immediate Freeze" },
{ AL_FUNC_FRZNACK, "Immediate Freeze No Ack" },
{ AL_FUNC_FRZCLR, "Freeze and Clear" },
{ AL_FUNC_FRZCLRNACK, "Freeze and Clear No ACK" },
{ AL_FUNC_FRZT, "Freeze With Time" },
{ AL_FUNC_FRZTNACK, "Freeze With Time No ACK" },
{ AL_FUNC_COLDRST, "Cold Restart" },
{ AL_FUNC_WARMRST, "Warm Restart" },
{ AL_FUNC_INITDATA, "Initialize Data" },
{ AL_FUNC_INITAPP, "Initialize Application" },
{ AL_FUNC_STARTAPP, "Start Application" },
{ AL_FUNC_STOPAPP, "Stop Application" },
{ AL_FUNC_SAVECFG, "Save Configuration" },
{ AL_FUNC_ENSPMSG, "Enable Spontaneous Messages" },
{ AL_FUNC_DISSPMSG, "Disable Spontaneous Messages" },
{ AL_FUNC_ASSIGNCL, "Assign Classes" },
{ AL_FUNC_DELAYMST, "Delay Measurement" },
{ AL_FUNC_RECCT, "Record Current Time" },
{ AL_FUNC_OPENFILE, "Open File" },
{ AL_FUNC_CLOSEFILE, "Close File" },
{ AL_FUNC_DELETEFILE, "Delete File" },
{ AL_FUNC_GETFILEINF, "Get File Info" },
{ AL_FUNC_AUTHFILE, "Authenticate File" },
{ AL_FUNC_ABORTFILE, "Abort File" },
{ AL_FUNC_ACTCNF, "Activate Config" },
{ AL_FUNC_AUTHREQ, "Authentication Request" },
{ AL_FUNC_AUTHERR, "Authentication Error" },
{ AL_FUNC_RESPON, "Response" },
{ AL_FUNC_UNSOLI, "Unsolicited Response" },
{ AL_FUNC_AUTHRESP, "Authentication Response" },
{ 0, NULL }
};
static value_string_ext dnp3_al_func_vals_ext = VALUE_STRING_EXT_INIT(dnp3_al_func_vals);
/* Application Layer Internal Indication (IIN) bit Values */
static const value_string dnp3_al_iin_vals[] = {
{ AL_IIN_BMSG, "Broadcast message Rx'd" },
{ AL_IIN_CLS1D, "Class 1 Data Available" },
{ AL_IIN_CLS2D, "Class 2 Data Available" },
{ AL_IIN_CLS3D, "Class 3 Data Available" },
{ AL_IIN_TSR, "Time Sync Required from Master" },
{ AL_IIN_DOL, "Outputs in Local Mode" },
{ AL_IIN_DT, "Device Trouble" },
{ AL_IIN_RST, "Device Restart" },
{ AL_IIN_FCNI, "Function Code not implemented" },
{ AL_IIN_OBJU, "Requested Objects Unknown" },
{ AL_IIN_PIOOR, "Parameters Invalid or Out of Range" },
{ AL_IIN_EBO, "Event Buffer Overflow" },
{ AL_IIN_OAE, "Operation Already Executing" },
{ AL_IIN_CC, "Device Configuration Corrupt" },
{ 0, NULL }
};
/* Application Layer Object Qualifier Prefix Values When Qualifier Code != 11 */
static const value_string dnp3_al_objq_prefix_vals[] = {
{ AL_OBJQL_PREFIX_NI, "None" },
{ AL_OBJQL_PREFIX_1O, "1-Octet Index Prefix" },
{ AL_OBJQL_PREFIX_2O, "2-Octet Index Prefix" },
{ AL_OBJQL_PREFIX_4O, "4-Octet Index Prefix" },
{ AL_OBJQL_PREFIX_1OS, "1-Octet Object Size Prefix" },
{ AL_OBJQL_PREFIX_2OS, "2-Octet Object Size Prefix" },
{ AL_OBJQL_PREFIX_4OS, "4-Octet Object Size Prefix" },
{ 0, NULL }
};
static value_string_ext dnp3_al_objq_prefix_vals_ext = VALUE_STRING_EXT_INIT(dnp3_al_objq_prefix_vals);
/* Application Layer Object Qualifier Range Values */
static const value_string dnp3_al_objq_range_vals[] = {
{ AL_OBJQL_RANGE_SSI8, "8-bit Start and Stop Indices" },
{ AL_OBJQL_RANGE_SSI16, "16-bit Start and Stop Indices" },
{ AL_OBJQL_RANGE_SSI32, "32-bit Start and Stop Indices" },
{ AL_OBJQL_RANGE_AA8, "8-bit Absolute Address in Range Field" },
{ AL_OBJQL_RANGE_AA16, "16-bit Absolute Address in Range Field" },
{ AL_OBJQL_RANGE_AA32, "32-bit Absolute Address in Range Field" },
{ AL_OBJQL_RANGE_R0, "No Range Field" },
{ AL_OBJQL_RANGE_SF8, "8-bit Single Field Quantity" },
{ AL_OBJQL_RANGE_SF16, "16-bit Single Field Quantity" },
{ AL_OBJQL_RANGE_SF32, "32-bit Single Field Quantity" },
{ 10, "Reserved" },
{ AL_OBJQL_RANGE_FF, "Free-format Qualifier" },
{ 0, NULL }
};
static value_string_ext dnp3_al_objq_range_vals_ext = VALUE_STRING_EXT_INIT(dnp3_al_objq_range_vals);
/* Application Layer Data Object Values */
static const value_string dnp3_al_obj_vals[] = {
{ AL_OBJ_DA_USR_ATTR,"Device Attributes - Identifier of support for user-specific attributes (Obj:00, Var:211)" },
{ AL_OBJ_DA_MSTR_DSP,"Device Attributes - Number of master-defined data set prototypes (Obj:00, Var:212)" },
{ AL_OBJ_DA_OS_DSP, "Device Attributes - Number of outstation-defined data set prototypes (Obj:00, Var:213)" },
{ AL_OBJ_DA_MSTR_DS, "Device Attributes - Number of master-defined data sets (Obj:00, Var:214)" },
{ AL_OBJ_DA_OS_DS, "Device Attributes - Number of outstation-defined data sets (Obj:00, Var:215)" },
{ AL_OBJ_DA_BO_REQ, "Device Attributes - Max number of binary outputs per request (Obj:00, Var:216)" },
{ AL_OBJ_DA_LOC_TA, "Device Attributes - Local timing accuracy (Obj:00, Var:217)" },
{ AL_OBJ_DA_DUR_TA, "Device Attributes - Duration of timing accuraccy (Obj:00, Var:218)" },
{ AL_OBJ_DA_AO_EVT, "Device Attributes - Support for analog output events (Obj:00, Var:219)" },
{ AL_OBJ_DA_MAX_AO, "Device Attributes - Max analog output index (Obj:00, Var:220)" },
{ AL_OBJ_DA_NUM_AO, "Device Attributes - Number of analog outputs (Obj:00, Var:221)" },
{ AL_OBJ_DA_BO_EVT, "Device Attributes - Support for binary output events (Obj:00, Var:222)" },
{ AL_OBJ_DA_MAX_BO, "Device Attributes - Max binary output index (Obj:00, Var:223)" },
{ AL_OBJ_DA_NUM_BO, "Device Attributes - Number of binary outputs (Obj:00, Var:224)" },
{ AL_OBJ_DA_FCTR_EVT,"Device Attributes - Support for frozen counter events (Obj:00, Var:225)" },
{ AL_OBJ_DA_FCTR, "Device Attributes - Support for frozen counters (Obj:00, Var:226)" },
{ AL_OBJ_DA_CTR_EVT, "Device Attributes - Support for counter events (Obj:00, Var:227)" },
{ AL_OBJ_DA_MAX_CTR, "Device Attributes - Max counter index (Obj:00, Var:228)" },
{ AL_OBJ_DA_NUM_CTR, "Device Attributes - Number of counter points (Obj:00, Var:229)" },
{ AL_OBJ_DA_AIF, "Device Attributes - Support for frozen analog inputs (Obj:00, Var:230)" },
{ AL_OBJ_DA_AI_EVT, "Device Attributes - Support for analog input events (Obj:00, Var:231)" },
{ AL_OBJ_DA_MAX_AI, "Device Attributes - Maximum analog input index (Obj:00, Var:232)" },
{ AL_OBJ_DA_NUM_AI, "Device Attributes - Number of analog input points (Obj:00, Var:233)" },
{ AL_OBJ_DA_2BI_EVT, "Device Attributes - Support for Double-Bit BI Events (Obj:00, Var:234)" },
{ AL_OBJ_DA_MAX_2BI, "Device Attributes - Max Double-bit BI Point Index (Obj:00, Var:235)" },
{ AL_OBJ_DA_NUM_2BI, "Device Attributes - Number of Double-bit BI Points (Obj:00, Var:236)" },
{ AL_OBJ_DA_BI_EVT, "Device Attributes - Support for Binary Input Events (Obj:00, Var:237)" },
{ AL_OBJ_DA_MAX_BI, "Device Attributes - Max Binary Input Point Index (Obj:00, Var:238)" },
{ AL_OBJ_DA_NUM_BI, "Device Attributes - Number of Binary Input Points (Obj:00, Var:239)" },
{ AL_OBJ_DA_MXTX_FR, "Device Attributes - Maximum Transmit Fragment Size (Obj:00, Var:240)" },
{ AL_OBJ_DA_MXRX_FR, "Device Attributes - Maximum Receive Fragment Size (Obj:00, Var:241)" },
{ AL_OBJ_DA_SWVER, "Device Attributes - Device Manufacturers SW Version (Obj:00, Var:242)" },
{ AL_OBJ_DA_HWVER, "Device Attributes - Device Manufacturers HW Version (Obj:00, Var:243)" },
{ AL_OBJ_DA_LOC, "Device Attributes - User-Assigned Location (Obj:00, Var:245)" },
{ AL_OBJ_DA_ID, "Device Attributes - User-Assigned ID code/number (Obj:00, Var:246)" },
{ AL_OBJ_DA_DEVNAME, "Device Attributes - User-Assigned Device Name (Obj:00, Var:247)" },
{ AL_OBJ_DA_SERNUM, "Device Attributes - Device Serial Number (Obj:00, Var:248)" },
{ AL_OBJ_DA_CONF, "Device Attributes - DNP Subset and Conformance (Obj:00, Var:249)" },
{ AL_OBJ_DA_PROD, "Device Attributes - Device Product Name and Model (Obj:00, Var:250)" },
{ AL_OBJ_DA_MFG, "Device Attributes - Device Manufacturers Name (Obj:00, Var:252)" },
{ AL_OBJ_DA_ALL, "Device Attributes - Non-specific All-attributes Request (Obj:00, Var:254)" },
{ AL_OBJ_DA_LVAR, "Device Attributes - List of Attribute Variations (Obj:00, Var:255)" },
{ AL_OBJ_BI_ALL, "Binary Input Default Variation (Obj:01, Var:Default)" },
{ AL_OBJ_BI_1BIT, "Single-Bit Binary Input (Obj:01, Var:01)" },
{ AL_OBJ_BI_STAT, "Binary Input With Status (Obj:01, Var:02)" },
{ AL_OBJ_BIC_ALL, "Binary Input Change Default Variation (Obj:02, Var:Default)" },
{ AL_OBJ_BIC_NOTIME, "Binary Input Change Without Time (Obj:02, Var:01)" },
{ AL_OBJ_BIC_TIME, "Binary Input Change With Time (Obj:02, Var:02)" },
{ AL_OBJ_BIC_RTIME, "Binary Input Change With Relative Time (Obj:02, Var:03)" },
{ AL_OBJ_2BI_ALL, "Double-bit Input Default Variation (Obj:03, Var:Default)" },
{ AL_OBJ_2BI_NF, "Double-bit Input No Flags (Obj:03, Var:01)" },
{ AL_OBJ_2BI_STAT, "Double-bit Input With Status (Obj:03, Var:02)" },
{ AL_OBJ_2BIC_ALL, "Double-bit Input Change Default Variation (Obj:04, Var:Default)" },
{ AL_OBJ_2BIC_NOTIME, "Double-bit Input Change Without Time (Obj:04, Var:01)" },
{ AL_OBJ_2BIC_TIME, "Double-bit Input Change With Time (Obj:04, Var:02)" },
{ AL_OBJ_2BIC_RTIME, "Double-bit Input Change With Relative Time (Obj:04, Var:03)" },
{ AL_OBJ_BO_ALL, "Binary Output Default Variation (Obj:10, Var:Default)" },
{ AL_OBJ_BO, "Binary Output (Obj:10, Var:01)" },
{ AL_OBJ_BO_STAT, "Binary Output Status (Obj:10, Var:02)" },
{ AL_OBJ_BOC_ALL, "Binary Output Change Default Variation (Obj:11, Var:Default)" },
{ AL_OBJ_BOC_NOTIME, "Binary Output Change Without Time (Obj:11, Var:01)" },
{ AL_OBJ_BOC_TIME, "Binary Output Change With Time (Obj:11, Var:02)" },
{ AL_OBJ_CTLOP_BLK, "Control Relay Output Block (Obj:12, Var:01)" },
{ AL_OBJ_CTL_PCB, "Pattern Control Block (Obj:12, Var:02)" },
{ AL_OBJ_CTL_PMASK, "Pattern Mask (Obj:12, Var:03)" },
{ AL_OBJ_BOE_NOTIME, "Binary Command Event Without Time (Obj 13, Var:01)" },
{ AL_OBJ_BOE_TIME, "Binary Command Event With Time (Obj 13, Var:02)" },
{ AL_OBJ_CTR_ALL, "Binary Counter Default Variation (Obj:20, Var:Default)" },
{ AL_OBJ_CTR_32, "32-Bit Binary Counter (Obj:20, Var:01)" },
{ AL_OBJ_CTR_16, "16-Bit Binary Counter (Obj:20, Var:02)" },
{ AL_OBJ_DCTR_32, "32-Bit Binary Delta Counter (Obj:20, Var:03)" },
{ AL_OBJ_DCTR_16, "16-Bit Binary Delta Counter (Obj:20, Var:04)" },
{ AL_OBJ_CTR_32NF, "32-Bit Binary Counter Without Flag (Obj:20, Var:05)" },
{ AL_OBJ_CTR_16NF, "16-Bit Binary Counter Without Flag (Obj:20, Var:06)" },
{ AL_OBJ_DCTR_32NF, "32-Bit Binary Delta Counter Without Flag (Obj:20, Var:07)" },
{ AL_OBJ_DCTR_16NF, "16-Bit Binary Delta Counter Without Flag (Obj:20, Var:08)" },
{ AL_OBJ_FCTR_ALL, "Frozen Binary Counter Default Variation (Obj:21, Var:Default)" },
{ AL_OBJ_FCTR_32, "32-Bit Frozen Binary Counter (Obj:21, Var:01)" },
{ AL_OBJ_FCTR_16, "16-Bit Frozen Binary Counter (Obj:21, Var:02)" },
{ AL_OBJ_FDCTR_32, "32-Bit Frozen Binary Delta Counter (Obj:21, Var:03)" },
{ AL_OBJ_FDCTR_16, "16-Bit Frozen Binary Delta Counter (Obj:21, Var:04)" },
{ AL_OBJ_FCTR_32T, "32-Bit Frozen Binary Counter With Flag and Time (Obj:21, Var:05)" },
{ AL_OBJ_FCTR_16T, "16-Bit Frozen Binary Counter With Flag and Time (Obj:21, Var:06)" },
{ AL_OBJ_FDCTR_32T, "32-Bit Frozen Binary Delta Counter With Flag and Time (Obj:21, Var:07)" },
{ AL_OBJ_FDCTR_16T, "16-Bit Frozen Binary Delta Counter With Flag and Time (Obj:21, Var:08)" },
{ AL_OBJ_FCTR_32NF, "32-Bit Frozen Binary Counter Without Flag (Obj:21, Var:09)" },
{ AL_OBJ_FCTR_16NF, "16-Bit Frozen Binary Counter Without Flag (Obj:21, Var:10)" },
{ AL_OBJ_FDCTR_32NF, "32-Bit Frozen Binary Delta Counter Without Flag (Obj:21, Var:11)" },
{ AL_OBJ_FDCTR_16NF, "16-Bit Frozen Binary Delta Counter Without Flag (Obj:21, Var:12)" },
{ AL_OBJ_CTRC_ALL, "Binary Counter Change Default Variation (Obj:22, Var:Default)" },
{ AL_OBJ_CTRC_32, "32-Bit Counter Change Event w/o Time (Obj:22, Var:01)" },
{ AL_OBJ_CTRC_16, "16-Bit Counter Change Event w/o Time (Obj:22, Var:02)" },
{ AL_OBJ_DCTRC_32, "32-Bit Delta Counter Change Event w/o Time (Obj:22, Var:03)" },
{ AL_OBJ_DCTRC_16, "16-Bit Delta Counter Change Event w/o Time (Obj:22, Var:04)" },
{ AL_OBJ_CTRC_32T, "32-Bit Counter Change Event with Time (Obj:22, Var:05)" },
{ AL_OBJ_CTRC_16T, "16-Bit Counter Change Event with Time (Obj:22, Var:06)" },
{ AL_OBJ_DCTRC_32T, "32-Bit Delta Counter Change Event with Time (Obj:22, Var:07)" },
{ AL_OBJ_DCTRC_16T, "16-Bit Delta Counter Change Event with Time (Obj:22, Var:08)" },
{ AL_OBJ_FCTRC_ALL, "Frozen Binary Counter Change Default Variation (Obj:23, Var:Default)" },
{ AL_OBJ_FCTRC_32, "32-Bit Frozen Counter Change Event w/o Time (Obj:23, Var:01)" },
{ AL_OBJ_FCTRC_16, "16-Bit Frozen Counter Change Event w/o Time (Obj:23, Var:02)" },
{ AL_OBJ_FDCTRC_32, "32-Bit Frozen Delta Counter Change Event w/o Time (Obj:23, Var:03)" },
{ AL_OBJ_FDCTRC_16, "16-Bit Frozen Delta Counter Change Event w/o Time (Obj:23, Var:04)" },
{ AL_OBJ_FCTRC_32T, "32-Bit Frozen Counter Change Event with Time (Obj:23, Var:05)" },
{ AL_OBJ_FCTRC_16T, "16-Bit Frozen Counter Change Event with Time (Obj:23, Var:06)" },
{ AL_OBJ_FDCTRC_32T, "32-Bit Frozen Delta Counter Change Event with Time (Obj:23, Var:07)" },
{ AL_OBJ_FDCTRC_16T, "16-Bit Frozen Delta Counter Change Event with Time (Obj:23, Var:08)" },
{ AL_OBJ_AI_ALL, "Analog Input Default Variation (Obj:30, Var:Default)" },
{ AL_OBJ_AI_32, "32-Bit Analog Input (Obj:30, Var:01)" },
{ AL_OBJ_AI_16, "16-Bit Analog Input (Obj:30, Var:02)" },
{ AL_OBJ_AI_32NF, "32-Bit Analog Input Without Flag (Obj:30, Var:03)" },
{ AL_OBJ_AI_16NF, "16-Bit Analog Input Without Flag (Obj:30, Var:04)" },
{ AL_OBJ_AI_FLT, "32-Bit Floating Point Input (Obj:30, Var:05)" },
{ AL_OBJ_AI_DBL, "64-Bit Floating Point Input (Obj:30, Var:06)" },
{ AL_OBJ_AIF_FLT, "32-Bit Frozen Floating Point Input (Obj:31, Var:07)" },
{ AL_OBJ_AIF_DBL, "64-Bit Frozen Floating Point Input (Obj:31, Var:08)" },
{ AL_OBJ_AIC_ALL, "Analog Input Change Default Variation (Obj:32, Var:Default)" },
{ AL_OBJ_AIC_32NT, "32-Bit Analog Change Event w/o Time (Obj:32, Var:01)" },
{ AL_OBJ_AIC_16NT, "16-Bit Analog Change Event w/o Time (Obj:32, Var:02)" },
{ AL_OBJ_AIC_32T, "32-Bit Analog Change Event with Time (Obj:32, Var:03)" },
{ AL_OBJ_AIC_16T, "16-Bit Analog Change Event with Time (Obj:32, Var:04)" },
{ AL_OBJ_AIC_FLTNT, "32-Bit Floating Point Change Event w/o Time (Obj:32, Var:05)" },
{ AL_OBJ_AIC_DBLNT, "64-Bit Floating Point Change Event w/o Time (Obj:32, Var:06)" },
{ AL_OBJ_AIC_FLTT, "32-Bit Floating Point Change Event w/ Time (Obj:32, Var:07)" },
{ AL_OBJ_AIC_DBLT, "64-Bit Floating Point Change Event w/ Time (Obj:32, Var:08)" },
{ AL_OBJ_AIFC_FLTNT, "32-Bit Floating Point Frozen Change Event w/o Time (Obj:33, Var:05)" },
{ AL_OBJ_AIFC_DBLNT, "64-Bit Floating Point Frozen Change Event w/o Time (Obj:33, Var:06)" },
{ AL_OBJ_AIFC_FLTT, "32-Bit Floating Point Frozen Change Event w/ Time (Obj:33, Var:07)" },
{ AL_OBJ_AIFC_DBLT, "64-Bit Floating Point Frozen Change Event w/ Time (Obj:33, Var:08)" },
{ AL_OBJ_AIDB_ALL, "Analog Input Deadband Default Variation (Obj:34, Var:Default)" },
{ AL_OBJ_AIDB_16, "16-Bit Analog Input Deadband (Obj:34, Var:01)" },
{ AL_OBJ_AIDB_32, "32-Bit Analog Input Deadband (Obj:34, Var:02)" },
{ AL_OBJ_AIDB_FLT, "32-Bit Floating Point Analog Input Deadband (Obj:34, Var:03)" },
{ AL_OBJ_AO_ALL, "Analog Output Default Variation (Obj:40, Var:Default)" },
{ AL_OBJ_AO_32, "32-Bit Analog Output Status (Obj:40, Var:01)" },
{ AL_OBJ_AO_16, "16-Bit Analog Output Status (Obj:40, Var:02)" },
{ AL_OBJ_AO_FLT, "32-Bit Floating Point Output Status (Obj:40, Var:03)" },
{ AL_OBJ_AO_DBL, "64-Bit Floating Point Output Status (Obj:40, Var:04)" },
{ AL_OBJ_AO_32OPB, "32-Bit Analog Output Block (Obj:41, Var:01)" },
{ AL_OBJ_AO_16OPB, "16-Bit Analog Output Block (Obj:41, Var:02)" },
{ AL_OBJ_AO_FLTOPB, "32-Bit Floating Point Output Block (Obj:41, Var:03)" },
{ AL_OBJ_AO_DBLOPB, "64-Bit Floating Point Output Block (Obj:41, Var:04)" },
{ AL_OBJ_AOC_ALL, "Analog Output Event Default Variation (Obj:42, Var:Default)" },
{ AL_OBJ_AOC_32NT, "32-Bit Analog Output Event w/o Time (Obj:42, Var:01)" },
{ AL_OBJ_AOC_16NT, "16-Bit Analog Output Event w/o Time (Obj:42, Var:02)" },
{ AL_OBJ_AOC_32T, "32-Bit Analog Output Event with Time (Obj:42, Var:03)" },
{ AL_OBJ_AOC_16T, "16-Bit Analog Output Event with Time (Obj:42, Var:04)" },
{ AL_OBJ_AOC_FLTNT, "32-Bit Floating Point Output Event w/o Time (Obj:42, Var:05)" },
{ AL_OBJ_AOC_DBLNT, "64-Bit Floating Point Output Event w/o Time (Obj:42, Var:06)" },
{ AL_OBJ_AOC_FLTT, "32-Bit Floating Point Output Event w/ Time (Obj:42, Var:07)" },
{ AL_OBJ_AOC_DBLT, "64-Bit Floating Point Output Event w/ Time (Obj:42, Var:08)" },
{ AL_OBJ_AOC_32EVNT, "32-Bit Analog Output Event w/o Time (Obj:43, Var:01)" },
{ AL_OBJ_AOC_16EVNT, "16-Bit Analog Output Event w/o Time (Obj:43, Var:02)" },
{ AL_OBJ_AOC_32EVTT, "32-Bit Analog Output Event with Time (Obj:43, Var:03)" },
{ AL_OBJ_AOC_16EVTT, "16-Bit Analog Output Event with Time (Obj:43, Var:04)" },
{ AL_OBJ_AOC_FLTEVNT,"32-Bit Floating Point Output Event w/o Time (Obj:43, Var:05)" },
{ AL_OBJ_AOC_DBLEVNT,"64-Bit Floating Point Output Event w/o Time (Obj:43, Var:06)" },
{ AL_OBJ_AOC_FLTEVTT,"32-Bit Floating Point Output Event w/ Time (Obj:43, Var:07)" },
{ AL_OBJ_AOC_DBLEVTT,"64-Bit Floating Point Output Event w/ Time (Obj:43, Var:08)" },
{ AL_OBJ_TD_ALL, "Time and Date Default Variations (Obj:50, Var:Default)" },
{ AL_OBJ_TD, "Time and Date (Obj:50, Var:01)" },
{ AL_OBJ_TDI, "Time and Date w/Interval (Obj:50, Var:02)" },
{ AL_OBJ_TDR, "Last Recorded Time and Date (Obj:50, Var:03)" },
{ AL_OBJ_TDCTO, "Time and Date CTO (Obj:51, Var:01)" },
{ AL_OBJ_TDELAYF, "Time Delay - Fine (Obj:52, Var:02)" },
{ AL_OBJ_CLASS0, "Class 0 Data (Obj:60, Var:01)" },
{ AL_OBJ_CLASS1, "Class 1 Data (Obj:60, Var:02)" },
{ AL_OBJ_CLASS2, "Class 2 Data (Obj:60, Var:03)" },
{ AL_OBJ_CLASS3, "Class 3 Data (Obj:60, Var:04)" },
{ AL_OBJ_FILE_CMD, "File Control - File Command (Obj:70, Var:03)" },
{ AL_OBJ_FILE_STAT, "File Control - File Status (Obj:70, Var:04)" },
{ AL_OBJ_FILE_TRANS, "File Control - File Transport (Obj:70, Var:05)" },
{ AL_OBJ_FILE_TRAN_ST, "File Control - File Transport Status (Obj:70, Var:06)" },
{ AL_OBJ_IIN, "Internal Indications (Obj:80, Var:01)" },
{ AL_OBJ_DS_PROTO, "Data-Set Prototype, with UUID (Obj:85, Var:01)" },
{ AL_OBJ_DSD_CONT, "Data-Set Descriptor, Data-Set Contents (Obj:86, Var:01)" },
{ AL_OBJ_DSD_CHAR, "Data-Set Descriptor, Characteristics (Obj:86, Var:02)" },
{ AL_OBJ_DSD_PIDX, "Data-Set Descriptor, Point Index Attributes (Obj:86, Var:03)" },
{ AL_OBJ_DS_PV, "Data-Set, Present Value (Obj:87, Var:01)" },
{ AL_OBJ_DS_SS, "Data-Set, Snapshot (Obj:88, Var:01)" },
{ AL_OBJ_OCT, "Octet String (Obj:110)" },
{ AL_OBJ_OCT_EVT, "Octet String Event (Obj:111)" },
{ AL_OBJ_VT_OBLK, "Virtual Terminal Output Block (Obj:112)" },
{ AL_OBJ_VT_EVTD, "Virtual Terminal Event Data (Obj:113)" },
{ 0, NULL }
};
static value_string_ext dnp3_al_obj_vals_ext = VALUE_STRING_EXT_INIT(dnp3_al_obj_vals);
/* Application Layer Control Code 'Operation Type' Values */
static const value_string dnp3_al_ctlc_code_vals[] = {
{ AL_OBJCTLC_CODE0, "NUL Operation" },
{ AL_OBJCTLC_CODE1, "Pulse On" },
{ AL_OBJCTLC_CODE2, "Pulse Off" },
{ AL_OBJCTLC_CODE3, "Latch On" },
{ AL_OBJCTLC_CODE4, "Latch Off" },
{ 0, NULL }
};
/* Application Layer Control Code 'Clear Field' Values */
static const value_string dnp3_al_ctlc_misc_vals[] = {
{ AL_OBJCTLC_QUEUE, "Queue" },
{ AL_OBJCTLC_CLEAR, "Clear" },
{ AL_OBJCTLC_NOTSET, "Not Set" },
{ AL_OBJCTLC_BOTHSET, "Queue and Clear" },
{ 0, NULL }
};
/* Application Layer Control Code 'Trip Close Code' Values */
static const value_string dnp3_al_ctlc_tc_vals[] = {
{ AL_OBJCTLC_TC0, "NUL" },
{ AL_OBJCTLC_TC1, "Close" },
{ AL_OBJCTLC_TC2, "Trip" },
{ AL_OBJCTLC_TC3, "Reserved" },
{ 0, NULL }
};
/* Application Layer Control Status Values */
static const value_string dnp3_al_ctl_status_vals[] = {
{ AL_OBJCTL_STAT0, "Req. Accepted/Init/Queued" },
{ AL_OBJCTL_STAT1, "Req. Not Accepted; Arm-Timer Expired" },
{ AL_OBJCTL_STAT2, "Req. Not Accepted; No 'SELECT' Received" },
{ AL_OBJCTL_STAT3, "Req. Not Accepted; Format Err. in Ctl Req." },
{ AL_OBJCTL_STAT4, "Ctl Oper. Not Supported For This Point" },
{ AL_OBJCTL_STAT5, "Req. Not Accepted; Ctrl Queue Full/Point Active" },
{ AL_OBJCTL_STAT6, "Req. Not Accepted; Ctrl Hardware Problems" },
{ AL_OBJCTL_STAT7, "Req. Not Accepted; Local/Remote switch in Local" },
{ AL_OBJCTL_STAT8, "Req. Not Accepted; Too many operations" },
{ AL_OBJCTL_STAT9, "Req. Not Accepted; Insufficient authorization" },
{ AL_OBJCTL_STAT10, "Req. Not Accepted; Local automation proc active" },
{ AL_OBJCTL_STAT11, "Req. Not Accepted; Processing limited" },
{ AL_OBJCTL_STAT12, "Req. Not Accepted; Out of range value" },
{ AL_OBJCTL_STAT126, "Req. Not Accepted; Non-participating (NOP request)" },
{ AL_OBJCTL_STAT127, "Req. Not Accepted; Undefined error" },
{ 0, NULL }
};
static value_string_ext dnp3_al_ctl_status_vals_ext = VALUE_STRING_EXT_INIT(dnp3_al_ctl_status_vals);
#if 0
/* Application Layer Binary Input Quality Flag Values */
static const value_string dnp3_al_biflag_vals[] = {
{ AL_OBJ_BI_FLAG0, "Online" },
{ AL_OBJ_BI_FLAG1, "Restart" },
{ AL_OBJ_BI_FLAG2, "Comm Fail" },
{ AL_OBJ_BI_FLAG3, "Remote Forced" },
{ AL_OBJ_BI_FLAG4, "Locally Forced" },
{ AL_OBJ_BI_FLAG5, "Chatter Filter" },
{ 0, NULL }
};
#endif
#if 0
/* Application Layer Counter Quality Flag Values */
static const value_string dnp3_al_ctrflag_vals[] = {
{ AL_OBJ_CTR_FLAG0, "Online" },
{ AL_OBJ_CTR_FLAG1, "Restart" },
{ AL_OBJ_CTR_FLAG2, "Comm Fail" },
{ AL_OBJ_CTR_FLAG3, "Remote Forced" },
{ AL_OBJ_CTR_FLAG4, "Locally Forced" },
{ AL_OBJ_CTR_FLAG5, "Roll-Over" },
{ AL_OBJ_CTR_FLAG6, "Discontinuity" },
{ 0, NULL }
};
#endif
#if 0
/* Application Layer Analog Input Quality Flag Values */
static const value_string dnp3_al_aiflag_vals[] = {
{ AL_OBJ_AI_FLAG0, "Online" },
{ AL_OBJ_AI_FLAG1, "Restart" },
{ AL_OBJ_AI_FLAG2, "Comm Fail" },
{ AL_OBJ_AI_FLAG3, "Remote Forced" },
{ AL_OBJ_AI_FLAG4, "Locally Forced" },
{ AL_OBJ_AI_FLAG5, "Over-Range" },
{ AL_OBJ_AI_FLAG6, "Ref. Error" },
{ 0, NULL }
};
#endif
/* Application Layer File Control Mode values */
static const value_string dnp3_al_file_mode_vals[] = {
{ AL_OBJ_FILE_MODE_NULL, "NULL" },
{ AL_OBJ_FILE_MODE_READ, "READ" },
{ AL_OBJ_FILE_MODE_WRITE, "WRITE" },
{ AL_OBJ_FILE_MODE_APPEND, "APPEND" },
{ 0, NULL }
};
/* Application Layer File Control Status values */
static const value_string dnp3_al_file_status_vals[] = {
{ 0, "SUCCESS" },
{ 1, "PERMISSION DENIED" },
{ 2, "INVALID MODE" },
{ 3, "FILE NOT FOUND" },
{ 4, "FILE LOCKED" },
{ 5, "TOO MANY OPEN" },
{ 6, "INVALID HANDLE" },
{ 7, "WRITE BLOCK SIZE" },
{ 8, "COMM LOST" },
{ 9, "CANNOT ABORT" },
{ 16, "NOT OPENED" },
{ 17, "HANDLE EXPIRED" },
{ 18, "BUFFER OVERRUN" },
{ 19, "FATAL" },
{ 20, "BLOCK SEQUENCE" },
{ 255, "UNDEFINED" },
{ 0, NULL }
};
static value_string_ext dnp3_al_file_status_vals_ext = VALUE_STRING_EXT_INIT(dnp3_al_file_status_vals);
/* Application Layer Data Type values */
static const value_string dnp3_al_data_type_vals[] = {
{ 0x00, "NONE (Placeholder)" },
{ 0x01, "VSTR (Visible ASCII String)" },
{ 0x02, "UINT (Unsigned Integer)" },
{ 0x03, "INT (Signed Integer)" },
{ 0x04, "FLT (Floating Point)" },
{ 0x05, "OSTR (Octet String)" },
{ 0x06, "BSTR (Bit String)" },
{ 0x07, "TIME (DNP3 Time UINT48)" },
{ 0x08, "UNCD (Unicode String)" },
{ 0xFE, "U8BS8LIST (List of UINT8 - BSTR8 pairs)" },
{ 0xFF, "U8BS8EXLIST (Extended List of UINT8 - BSTR8 pairs)" },
{ 0, NULL }
};
/* Application Layer Read Object Type values */
static const value_string dnp3_al_read_obj_vals[] = {
{ (AL_OBJ_DA_GRP & 0xFF00), "Device Attribute" },
{ (AL_OBJ_BI_ALL & 0xFF00), "Binary Input" },
{ (AL_OBJ_BIC_ALL & 0xFF00), "Binary Input Change" },
{ (AL_OBJ_2BI_ALL & 0xFF00), "Double-bit Input" },
{ (AL_OBJ_2BIC_ALL & 0xFF00), "Double-bit Input Change" },
{ (AL_OBJ_BO_ALL & 0xFF00), "Binary Output" },
{ (AL_OBJ_CTR_ALL & 0xFF00), "Counter" },
{ (AL_OBJ_FCTR_ALL & 0xFF00), "Frozen Counter" },
{ (AL_OBJ_CTRC_ALL & 0xFF00), "Counter Change" },
{ (AL_OBJ_FCTRC_ALL & 0xFF00), "Frozen Counter Change" },
{ (AL_OBJ_AI_ALL & 0xFF00), "Analog Input" },
{ (AL_OBJ_AIC_ALL & 0xFF00), "Analog Input Change" },
{ (AL_OBJ_AO_ALL & 0xFF00), "Analog Output" },
{ (AL_OBJ_AOC_ALL & 0xFF00), "Analog Output Change" },
{ (AL_OBJ_TD_ALL & 0xFF00), "Time and Date" },
{ (AL_OBJ_FILE_CMD & 0xFF00), "File Control" },
{ (AL_OBJ_IIN & 0xFF00), "Internal Indications" },
{ (AL_OBJ_OCT & 0xFF00), "Octet String" },
{ (AL_OBJ_OCT_EVT & 0xFF00), "Octet String Event" },
{ (AL_OBJ_VT_EVTD & 0xFF00), "Virtual Terminal Event Data" },
{ 0, NULL }
};
static value_string_ext dnp3_al_read_obj_vals_ext = VALUE_STRING_EXT_INIT(dnp3_al_read_obj_vals);
/* Application Layer Write Object Type values */
static const value_string dnp3_al_write_obj_vals[] = {
{ (AL_OBJ_TD_ALL & 0xFF00), "Time and Date" },
{ (AL_OBJ_FILE_CMD & 0xFF00), "File Control" },
{ (AL_OBJ_IIN & 0xFF00), "Internal Indications" },
{ (AL_OBJ_OCT & 0xFF00), "Octet String" },
{ (AL_OBJ_OCT_EVT & 0xFF00), "Octet String Event" },
{ (AL_OBJ_VT_OBLK & 0xFF00), "Virtual Terminal Output Block" },
{ 0, NULL }
};
static value_string_ext dnp3_al_write_obj_vals_ext = VALUE_STRING_EXT_INIT(dnp3_al_write_obj_vals);
/* Initialize the subtree pointers */
static gint ett_dnp3 = -1;
static gint ett_dnp3_dl = -1;
static gint ett_dnp3_dl_ctl = -1;
static gint ett_dnp3_tr_ctl = -1;
static gint ett_dnp3_al_data = -1;
static gint ett_dnp3_al = -1;
static gint ett_dnp3_al_ctl = -1;
static gint ett_dnp3_al_obj_point_tcc = -1;
/* Added for Application Layer Decoding */
static gint ett_dnp3_al_iin = -1;
static gint ett_dnp3_al_obj = -1;
static gint ett_dnp3_al_obj_qualifier = -1;
static gint ett_dnp3_al_obj_range = -1;
static gint ett_dnp3_al_objdet = -1;
static gint ett_dnp3_al_obj_quality = -1;
static gint ett_dnp3_al_obj_point = -1;
static gint ett_dnp3_al_obj_point_perms = -1;
static expert_field ei_dnp_num_items_neg = EI_INIT;
static expert_field ei_dnp_invalid_length = EI_INIT;
static expert_field ei_dnp_iin_abnormal = EI_INIT;
/* Generated from convert_proto_tree_add_text.pl */
static expert_field ei_dnp3_crc_failed = EI_INIT;
#if 0
static expert_field ei_dnp3_buffering_user_data_until_final_frame_is_received = EI_INIT;
#endif
/* Tables for reassembly of fragments. */
static reassembly_table al_reassembly_table;
static GHashTable *dl_conversation_table = NULL;
/* Data-Link-Layer Conversation Key Structure */
typedef struct _dl_conversation_key
{
guint32 conversation; /* TCP / UDP conversation index */
guint16 src; /* DNP3.0 Source Address */
guint16 dst; /* DNP3.0 Destination Address */
} dl_conversation_key_t;
/* Data-Link-Layer conversation key equality function */
static gboolean
dl_conversation_equal(gconstpointer v, gconstpointer w)
{
const dl_conversation_key_t* v1 = (const dl_conversation_key_t*)v;
const dl_conversation_key_t* v2 = (const dl_conversation_key_t*)w;
if ((v1->conversation == v2->conversation) &&
(v1->src == v2->src) &&
(v1->dst == v2->dst))
{
return TRUE;
}
return FALSE;
}
/* Data-Link-Layer conversation key hash function */
static guint
dl_conversation_hash(gconstpointer v)
{
const dl_conversation_key_t *key = (const dl_conversation_key_t*)v;
guint val;
val = key->conversation + (key->src << 16) + key->dst;
return val;
}
/* ************************************************************************* */
/* Header values for reassembly */
/* ************************************************************************* */
static int hf_dnp3_fragment = -1;
static int hf_dnp3_fragments = -1;
static int hf_dnp3_fragment_overlap = -1;
static int hf_dnp3_fragment_overlap_conflict = -1;
static int hf_dnp3_fragment_multiple_tails = -1;
static int hf_dnp3_fragment_too_long_fragment = -1;
static int hf_dnp3_fragment_error = -1;
static int hf_dnp3_fragment_count = -1;
static int hf_dnp3_fragment_reassembled_in = -1;
static int hf_dnp3_fragment_reassembled_length = -1;
static gint ett_dnp3_fragment = -1;
static gint ett_dnp3_fragments = -1;
static const fragment_items dnp3_frag_items = {
&ett_dnp3_fragment,
&ett_dnp3_fragments,
&hf_dnp3_fragments,
&hf_dnp3_fragment,
&hf_dnp3_fragment_overlap,
&hf_dnp3_fragment_overlap_conflict,
&hf_dnp3_fragment_multiple_tails,
&hf_dnp3_fragment_too_long_fragment,
&hf_dnp3_fragment_error,
&hf_dnp3_fragment_count,
&hf_dnp3_fragment_reassembled_in,
&hf_dnp3_fragment_reassembled_length,
/* Reassembled data field */
NULL,
"DNP 3.0 fragments"
};
/* Conversation stuff, used for tracking application message fragments */
/* the number of entries in the memory chunk array */
#define dnp3_conv_init_count 50
/* Conversation structure */
typedef struct {
guint conv_seq_number;
} dnp3_conv_t;
/* The conversation sequence number */
static guint seq_number = 0;
/* desegmentation of DNP3 over TCP */
static gboolean dnp3_desegment = TRUE;
/* Enum for different quality type fields */
enum QUALITY_TYPE {
BIN_IN,
BIN_OUT,
ANA_IN,
ANA_OUT,
COUNTER
};
/* calculates crc given a buffer of characters and a length of buffer */
static guint16
calculateCRC(const void *buf, guint len) {
guint16 crc = crc16_0x3D65_seed((const guint8 *)buf, len, 0);
return ~crc;
}
/* calculates crc given a tvbuff, offset, and length */
static guint16
calculateCRCtvb(tvbuff_t *tvb, guint offset, guint len) {
guint16 crc = crc16_0x3D65_tvb_offset_seed(tvb, offset, len, 0);
return ~crc;
}
/*****************************************************************/
/* Adds text to item, with trailing "," if required */
/*****************************************************************/
static gboolean
add_item_text(proto_item *item, const gchar *text, gboolean comma_needed)
{
if (comma_needed) {
proto_item_append_text(item, ", ");
}
proto_item_append_text(item, "%s", text);
return TRUE;
}
/*****************************************************************/
/* Application Layer Process Internal Indications (IIN) */
/*****************************************************************/
static void
dnp3_al_process_iin(tvbuff_t *tvb, packet_info *pinfo, int offset, proto_tree *al_tree)
{
guint16 al_iin;
proto_item *tiin;
proto_tree *iin_tree;
gboolean comma_needed = FALSE;
al_iin = tvb_get_ntohs(tvb, offset);
tiin = proto_tree_add_uint_format(al_tree, hf_dnp3_al_iin, tvb, offset, 2, al_iin,
"Internal Indications: ");
if (al_iin & AL_IIN_RST) comma_needed = add_item_text(tiin, "Device Restart", comma_needed);
if (al_iin & AL_IIN_DOL) comma_needed = add_item_text(tiin, "Outputs in Local", comma_needed);
if (al_iin & AL_IIN_DT) comma_needed = add_item_text(tiin, "Device Trouble", comma_needed);
if (al_iin & AL_IIN_TSR) comma_needed = add_item_text(tiin, "Time Sync Required", comma_needed);
if (al_iin & AL_IIN_CLS3D) comma_needed = add_item_text(tiin, "Class 3 Data Available", comma_needed);
if (al_iin & AL_IIN_CLS2D) comma_needed = add_item_text(tiin, "Class 2 Data Available", comma_needed);
if (al_iin & AL_IIN_CLS1D) comma_needed = add_item_text(tiin, "Class 1 Data Available", comma_needed);
if (al_iin & AL_IIN_BMSG) comma_needed = add_item_text(tiin, "Broadcast Message Rx'd", comma_needed);
if (al_iin & AL_IIN_CC) comma_needed = add_item_text(tiin, "Device Configuration Corrupt", comma_needed);
if (al_iin & AL_IIN_OAE) comma_needed = add_item_text(tiin, "Operation Already Executing", comma_needed);
if (al_iin & AL_IIN_EBO) comma_needed = add_item_text(tiin, "Event Buffer Overflow", comma_needed);
if (al_iin & AL_IIN_PIOOR) comma_needed = add_item_text(tiin, "Parameters Invalid or Out of Range", comma_needed);
if (al_iin & AL_IIN_OBJU) comma_needed = add_item_text(tiin, "Requested Objects Unknown", comma_needed);
if (al_iin & AL_IIN_FCNI) /*comma_needed = */add_item_text(tiin, "Function code not implemented", comma_needed);
proto_item_append_text(tiin, " (0x%04x)", al_iin);
/* If IIN indicates an abnormal condition, add expert info */
if ((al_iin & AL_IIN_DT) || (al_iin & AL_IIN_CC) || (al_iin & AL_IIN_OAE) || (al_iin & AL_IIN_EBO) ||
(al_iin & AL_IIN_PIOOR) || (al_iin & AL_IIN_OBJU) || (al_iin & AL_IIN_FCNI)) {
expert_add_info(pinfo, tiin, &ei_dnp_iin_abnormal);
}
iin_tree = proto_item_add_subtree(tiin, ett_dnp3_al_iin);
proto_tree_add_item(iin_tree, hf_dnp3_al_iin_rst, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(iin_tree, hf_dnp3_al_iin_dt, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(iin_tree, hf_dnp3_al_iin_dol, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(iin_tree, hf_dnp3_al_iin_tsr, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(iin_tree, hf_dnp3_al_iin_cls3d, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(iin_tree, hf_dnp3_al_iin_cls2d, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(iin_tree, hf_dnp3_al_iin_cls1d, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(iin_tree, hf_dnp3_al_iin_bmsg, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(iin_tree, hf_dnp3_al_iin_cc, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(iin_tree, hf_dnp3_al_iin_oae, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(iin_tree, hf_dnp3_al_iin_ebo, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(iin_tree, hf_dnp3_al_iin_pioor, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(iin_tree, hf_dnp3_al_iin_obju, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_tree_add_item(iin_tree, hf_dnp3_al_iin_fcni, tvb, offset, 2, ENC_BIG_ENDIAN);
}
/**************************************************************/
/* Function to determine Application Layer Object Prefix size */
/* and Point address. */
/**************************************************************/
static int
dnp3_al_obj_procprefix(tvbuff_t *tvb, int offset, guint8 al_objq_prefix, guint32 *al_ptaddr, proto_tree *item_tree)
{
int prefixbytes = 0;
proto_item *prefix_item;
switch (al_objq_prefix)
{
case AL_OBJQL_PREFIX_NI: /* No Prefix */
prefixbytes = 0;
prefix_item = proto_tree_add_uint(item_tree, hf_dnp3_al_point_index, tvb, offset, 0, *al_ptaddr);
PROTO_ITEM_SET_GENERATED(prefix_item);
break;
case AL_OBJQL_PREFIX_1O:
*al_ptaddr = tvb_get_guint8(tvb, offset);
proto_tree_add_item(item_tree, hf_dnp3_al_index8, tvb, offset, 1, ENC_LITTLE_ENDIAN);
prefixbytes = 1;
break;
case AL_OBJQL_PREFIX_2O:
*al_ptaddr = tvb_get_letohs(tvb, offset);
proto_tree_add_item(item_tree, hf_dnp3_al_index16, tvb, offset, 2, ENC_LITTLE_ENDIAN);
prefixbytes = 2;
break;
case AL_OBJQL_PREFIX_4O:
*al_ptaddr = tvb_get_letohl(tvb, offset);
proto_tree_add_item(item_tree, hf_dnp3_al_index32, tvb, offset, 4, ENC_LITTLE_ENDIAN);
prefixbytes = 4;
break;
case AL_OBJQL_PREFIX_1OS:
*al_ptaddr = tvb_get_guint8(tvb, offset);
proto_tree_add_item(item_tree, hf_dnp3_al_size8, tvb, offset, 1, ENC_LITTLE_ENDIAN);
prefixbytes = 1;
break;
case AL_OBJQL_PREFIX_2OS:
*al_ptaddr = tvb_get_letohs(tvb, offset);
proto_tree_add_item(item_tree, hf_dnp3_al_size16, tvb, offset, 2, ENC_LITTLE_ENDIAN);
prefixbytes = 2;
break;
case AL_OBJQL_PREFIX_4OS:
*al_ptaddr = tvb_get_letohl(tvb, offset);
proto_tree_add_item(item_tree, hf_dnp3_al_size32, tvb, offset, 4, ENC_LITTLE_ENDIAN);
prefixbytes = 4;
break;
}
return prefixbytes;
}
/*****************************************************************/
/* Function to add the same string to two separate tree items */
/*****************************************************************/
static void
dnp3_append_2item_text(proto_item *item1, proto_item *item2, const gchar *text)
{
proto_item_append_text(item1, "%s", text);
proto_item_append_text(item2, "%s", text);
}
/*****************************************************************/
/* Function to Determine Application Layer Point Quality Flags & */
/* add Point Quality Flag Sub-Tree */
/*****************************************************************/
static void
dnp3_al_obj_quality(tvbuff_t *tvb, int offset, guint8 al_ptflags, proto_tree *point_tree, proto_item *point_item, enum QUALITY_TYPE type)
{
proto_tree *quality_tree;
proto_item *quality_item;
int hf0 = 0, hf1 = 0, hf2 = 0, hf3 = 0, hf4 = 0, hf5 = 0, hf6 = 0, hf7 = 0;
/* Common code */
proto_item_append_text(point_item, " (Quality: ");
quality_tree = proto_tree_add_subtree(point_tree, tvb, offset, 1, ett_dnp3_al_obj_quality, &quality_item, "Quality: ");
if (al_ptflags & AL_OBJ_BI_FLAG0) {
dnp3_append_2item_text(point_item, quality_item, "Online");
}
else {
dnp3_append_2item_text(point_item, quality_item, "Offline");
}
if (al_ptflags & AL_OBJ_BI_FLAG1) dnp3_append_2item_text(point_item, quality_item, ", Restart");
if (al_ptflags & AL_OBJ_BI_FLAG2) dnp3_append_2item_text(point_item, quality_item, ", Comm Fail");
if (al_ptflags & AL_OBJ_BI_FLAG3) dnp3_append_2item_text(point_item, quality_item, ", Remote Force");
if (al_ptflags & AL_OBJ_BI_FLAG4) dnp3_append_2item_text(point_item, quality_item, ", Local Force");
switch (type) {
case BIN_IN: /* Binary Input Quality flags */
if (al_ptflags & AL_OBJ_BI_FLAG5) dnp3_append_2item_text(point_item, quality_item, ", Chatter Filter");
hf0 = hf_dnp3_al_biq_b0;
hf1 = hf_dnp3_al_biq_b1;
hf2 = hf_dnp3_al_biq_b2;
hf3 = hf_dnp3_al_biq_b3;
hf4 = hf_dnp3_al_biq_b4;
hf5 = hf_dnp3_al_biq_b5;
hf6 = hf_dnp3_al_biq_b6;
hf7 = hf_dnp3_al_biq_b7;
break;
case BIN_OUT: /* Binary Output Quality flags */
hf0 = hf_dnp3_al_boq_b0;
hf1 = hf_dnp3_al_boq_b1;
hf2 = hf_dnp3_al_boq_b2;
hf3 = hf_dnp3_al_boq_b3;
hf4 = hf_dnp3_al_boq_b4;
hf5 = hf_dnp3_al_boq_b5;
hf6 = hf_dnp3_al_boq_b6;
hf7 = hf_dnp3_al_boq_b7;
break;
case ANA_IN: /* Analog Input Quality flags */
if (al_ptflags & AL_OBJ_AI_FLAG5) dnp3_append_2item_text(point_item, quality_item, ", Over-Range");
if (al_ptflags & AL_OBJ_AI_FLAG6) dnp3_append_2item_text(point_item, quality_item, ", Reference Check");
hf0 = hf_dnp3_al_aiq_b0;
hf1 = hf_dnp3_al_aiq_b1;
hf2 = hf_dnp3_al_aiq_b2;
hf3 = hf_dnp3_al_aiq_b3;
hf4 = hf_dnp3_al_aiq_b4;
hf5 = hf_dnp3_al_aiq_b5;
hf6 = hf_dnp3_al_aiq_b6;
hf7 = hf_dnp3_al_aiq_b7;
break;
case ANA_OUT: /* Analog Output Quality flags */
hf0 = hf_dnp3_al_aoq_b0;
hf1 = hf_dnp3_al_aoq_b1;
hf2 = hf_dnp3_al_aoq_b2;
hf3 = hf_dnp3_al_aoq_b3;
hf4 = hf_dnp3_al_aoq_b4;
hf5 = hf_dnp3_al_aoq_b5;
hf6 = hf_dnp3_al_aoq_b6;
hf7 = hf_dnp3_al_aoq_b7;
break;
case COUNTER: /* Counter Quality flags */
if (al_ptflags & AL_OBJ_CTR_FLAG5) dnp3_append_2item_text(point_item, quality_item, ", Roll-over");
if (al_ptflags & AL_OBJ_CTR_FLAG6) dnp3_append_2item_text(point_item, quality_item, ", Discontinuity");
hf0 = hf_dnp3_al_ctrq_b0;
hf1 = hf_dnp3_al_ctrq_b1;
hf2 = hf_dnp3_al_ctrq_b2;
hf3 = hf_dnp3_al_ctrq_b3;
hf4 = hf_dnp3_al_ctrq_b4;
hf5 = hf_dnp3_al_ctrq_b5;
hf6 = hf_dnp3_al_ctrq_b6;
hf7 = hf_dnp3_al_ctrq_b7;
break;
}
if (quality_tree != NULL) {
proto_tree_add_item(quality_tree, hf7, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(quality_tree, hf6, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(quality_tree, hf5, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(quality_tree, hf4, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(quality_tree, hf3, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(quality_tree, hf2, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(quality_tree, hf1, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(quality_tree, hf0, tvb, offset, 1, ENC_LITTLE_ENDIAN);
}
proto_item_append_text(point_item, ")");
}
/**********************************************************************/
/* Function to convert DNP3 timestamp to nstime_t value */
/**********************************************************************/
/* 48-bit Time Format */
/* MSB FF EE DD CC BB AA LSB */
/* ffffffff eeeeeeee dddddddd cccccccc bbbbbbbb aaaaaaaa */
/* 47 40 39 32 31 24 23 16 15 8 7 0 */
/* */
/* Value is ms since 00:00 on 1/1/1970 */
/**********************************************************************/
static void
dnp3_al_get_timestamp(nstime_t *timestamp, tvbuff_t *tvb, int data_pos)
{
guint32 hi, lo;
guint64 time_ms;
lo = tvb_get_letohs(tvb, data_pos);
hi = tvb_get_letohl(tvb, data_pos + 2);
time_ms = (guint64)hi * 0x10000 + lo;
timestamp->secs = (long)(time_ms / 1000);
timestamp->nsecs = (int)(time_ms % 1000) * 1000000;
}
/*****************************************************************/
/* Desc: Application Layer Process Object Details */
/* Returns: New offset pointer into tvb */
/*****************************************************************/
static int
dnp3_al_process_object(tvbuff_t *tvb, packet_info *pinfo, int offset,
proto_tree *robj_tree, gboolean header_only,
guint16 *al_objtype, nstime_t *al_cto)
{
guint8 al_objq, al_objq_prefix, al_objq_range, al_oct_len = 0, bitindex;
guint16 al_obj, temp;
guint32 al_ptaddr = 0;
int num_items = 0;
int orig_offset, rangebytes = 0;
proto_item *object_item, *range_item;
proto_tree *object_tree, *qualifier_tree, *range_tree;
orig_offset = offset;
/* Application Layer Objects in this Message */
*al_objtype =
al_obj = tvb_get_ntohs(tvb, offset);
/* Special handling for Octet string objects as the variation is the length of the string */
temp = al_obj & 0xFF00;
if ((temp == AL_OBJ_OCT) || (temp == AL_OBJ_OCT_EVT )) {
al_oct_len = al_obj & 0xFF;
al_obj = temp;
}
/* Create Data Objects Detail Tree */
object_item = proto_tree_add_uint_format(robj_tree, hf_dnp3_al_obj, tvb, offset, 2, al_obj,
"Object(s): %s (0x%04x)",
val_to_str_ext_const(al_obj, &dnp3_al_obj_vals_ext, "Unknown Object - Abort Decoding..."),
al_obj);
object_tree = proto_item_add_subtree(object_item, ett_dnp3_al_obj);
offset += 2;
/* Object Qualifier */
al_objq = tvb_get_guint8(tvb, offset);
al_objq_prefix = al_objq & AL_OBJQ_PREFIX;
al_objq_prefix = al_objq_prefix >> 4;
al_objq_range = al_objq & AL_OBJQ_RANGE;
qualifier_tree = proto_tree_add_subtree_format(object_tree, tvb, offset, 1, ett_dnp3_al_obj_qualifier, NULL,
"Qualifier Field, Prefix: %s, Range: %s",
val_to_str_ext_const(al_objq_prefix, &dnp3_al_objq_prefix_vals_ext, "Unknown Prefix Type"),
val_to_str_ext_const(al_objq_range, &dnp3_al_objq_range_vals_ext, "Unknown Range Type"));
proto_tree_add_item(qualifier_tree, hf_dnp3_al_objq_prefix, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(qualifier_tree, hf_dnp3_al_objq_range, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/* Create (possibly synthesized) number of items and range field tree */
range_tree = proto_tree_add_subtree(object_tree, tvb, offset, 0, ett_dnp3_al_obj_range, &range_item, "Number of Items: ");
switch (al_objq_range)
{
case AL_OBJQL_RANGE_SSI8: /* 8-bit Start and Stop Indices in Range Field */
num_items = ( tvb_get_guint8(tvb, offset+1) - tvb_get_guint8(tvb, offset) + 1);
PROTO_ITEM_SET_GENERATED(range_item);
al_ptaddr = tvb_get_guint8(tvb, offset);
proto_tree_add_item(range_tree, hf_dnp3_al_range_start8, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(range_tree, hf_dnp3_al_range_stop8, tvb, offset + 1, 1, ENC_LITTLE_ENDIAN);
rangebytes = 2;
break;
case AL_OBJQL_RANGE_SSI16: /* 16-bit Start and Stop Indices in Range Field */
num_items = ( tvb_get_letohs(tvb, offset+2) - tvb_get_letohs(tvb, (offset)) + 1);
PROTO_ITEM_SET_GENERATED(range_item);
al_ptaddr = tvb_get_letohs(tvb, offset);
proto_tree_add_item(range_tree, hf_dnp3_al_range_start16, tvb, offset, 2, ENC_LITTLE_ENDIAN);
proto_tree_add_item(range_tree, hf_dnp3_al_range_stop16, tvb, offset + 2, 2, ENC_LITTLE_ENDIAN);
rangebytes = 4;
break;
case AL_OBJQL_RANGE_SSI32: /* 32-bit Start and Stop Indices in Range Field */
num_items = ( tvb_get_letohl(tvb, offset+4) - tvb_get_letohl(tvb, offset) + 1);
PROTO_ITEM_SET_GENERATED(range_item);
al_ptaddr = tvb_get_letohl(tvb, offset);
proto_tree_add_item(range_tree, hf_dnp3_al_range_start32, tvb, offset, 4, ENC_LITTLE_ENDIAN);
proto_tree_add_item(range_tree, hf_dnp3_al_range_stop32, tvb, offset + 4, 4, ENC_LITTLE_ENDIAN);
rangebytes = 8;
break;
case AL_OBJQL_RANGE_AA8: /* 8-bit Absolute Address in Range Field */
num_items = 1;
PROTO_ITEM_SET_GENERATED(range_item);
al_ptaddr = tvb_get_guint8(tvb, offset);
proto_tree_add_item(range_tree, hf_dnp3_al_range_abs8, tvb, offset, 1, ENC_LITTLE_ENDIAN);
rangebytes = 1;
break;
case AL_OBJQL_RANGE_AA16: /* 16-bit Absolute Address in Range Field */
num_items = 1;
PROTO_ITEM_SET_GENERATED(range_item);
al_ptaddr = tvb_get_letohs(tvb, offset);
proto_tree_add_item(range_tree, hf_dnp3_al_range_abs16, tvb, offset, 2, ENC_LITTLE_ENDIAN);
rangebytes = 2;
break;
case AL_OBJQL_RANGE_AA32: /* 32-bit Absolute Address in Range Field */
num_items = 1;
PROTO_ITEM_SET_GENERATED(range_item);
al_ptaddr = tvb_get_letohl(tvb, offset);
proto_tree_add_item(range_tree, hf_dnp3_al_range_abs32, tvb, offset, 4, ENC_LITTLE_ENDIAN);
rangebytes = 4;
break;
case AL_OBJQL_RANGE_SF8: /* 8-bit Single Field Quantity in Range Field */
num_items = tvb_get_guint8(tvb, offset);
proto_tree_add_item(range_tree, hf_dnp3_al_range_quant8, tvb, offset, 1, ENC_LITTLE_ENDIAN);
rangebytes = 1;
proto_item_set_len(range_item, rangebytes);
break;
case AL_OBJQL_RANGE_SF16: /* 16-bit Single Field Quantity in Range Field */
num_items = tvb_get_letohs(tvb, offset);
proto_tree_add_item(range_tree, hf_dnp3_al_range_quant16, tvb, offset, 2, ENC_LITTLE_ENDIAN);
rangebytes = 2;
proto_item_set_len(range_item, rangebytes);
break;
case AL_OBJQL_RANGE_SF32: /* 32-bit Single Field Quantity in Range Field */
num_items = tvb_get_letohl(tvb, offset);
proto_tree_add_item(range_tree, hf_dnp3_al_range_quant32, tvb, offset, 4, ENC_LITTLE_ENDIAN);
rangebytes = 4;
proto_item_set_len(range_item, rangebytes);
break;
case AL_OBJQL_RANGE_FF: /* 8 bit object count in Range Field */
num_items = tvb_get_guint8(tvb, offset);
proto_tree_add_item(range_tree, hf_dnp3_al_range_quant8, tvb, offset, 1, ENC_LITTLE_ENDIAN);
rangebytes = 1;
proto_item_set_len(range_item, rangebytes);
}
if (num_items > 0) {
proto_item_append_text(object_item, ", %d point%s", num_items, plurality(num_items, "", "s"));
}
proto_item_append_text(range_item, "%d", num_items);
/* A negative number of items is an error */
if (num_items < 0) {
proto_item_append_text(range_item, " (bogus)");
expert_add_info(pinfo, range_item, &ei_dnp_num_items_neg);
return tvb_captured_length(tvb);
}
/* Move offset past any range field */
offset += rangebytes;
bitindex = 0; /* Temp variable for cycling through points when object values are encoded into
bits; primarily objects 0x0101, 0x0301 & 0x1001 */
/* Only process the point information for replies or items with point index lists */
if (!header_only || al_objq_prefix > 0) {
int item_num;
int start_offset;
start_offset = offset;
for (item_num = 0; item_num < num_items; item_num++)
{
proto_item *point_item;
proto_tree *point_tree;
guint data_pos;
int prefixbytes;
/* Create Point item and process prefix */
if (al_objq_prefix <= AL_OBJQL_PREFIX_4O)
point_tree = proto_tree_add_subtree(object_tree, tvb, offset, -1, ett_dnp3_al_obj_point, &point_item, "Point Number");
else
point_tree = proto_tree_add_subtree(object_tree, tvb, offset, -1, ett_dnp3_al_obj_point, &point_item, "Object: Size");
data_pos = offset;
prefixbytes = dnp3_al_obj_procprefix(tvb, offset, al_objq_prefix, &al_ptaddr, point_tree);
proto_item_append_text(point_item, " %u", al_ptaddr);
proto_item_set_len(point_item, prefixbytes);
data_pos += prefixbytes;
if (!header_only || (AL_OBJQL_PREFIX_1OS <= al_objq_prefix && al_objq_prefix <= AL_OBJQL_PREFIX_4OS)) {
/* Process the object values */
guint8 al_2bit, al_ptflags, al_bi_val, al_tcc_code, da_len;
gint16 al_val_int16;
guint16 al_val_uint16, al_ctlobj_stat;
guint16 al_relms, al_filename_len, al_file_ctrl_mode;
gint32 al_val_int32;
guint32 al_val_uint32, file_data_size;
nstime_t al_reltime, al_abstime;
gboolean al_bit;
gfloat al_valflt;
gdouble al_valdbl;
const gchar *ctl_status_str;
switch (al_obj)
{
case AL_OBJ_BI_ALL: /* Binary Input Default Variation (Obj:01, Var:Default) */
case AL_OBJ_BIC_ALL: /* Binary Input Change Default Variation (Obj:02, Var:Default) */
case AL_OBJ_BOC_ALL: /* Binary Output Event Default Variation (Obj:11, Var:Default) */
case AL_OBJ_2BI_ALL: /* Double-bit Input Default Variation (Obj:03, Var:Default) */
case AL_OBJ_2BIC_ALL: /* Double-bit Input Change Default Variation (Obj:04, Var:Default) */
case AL_OBJ_CTR_ALL: /* Binary Counter Default Variation (Obj:20, Var:Default) */
case AL_OBJ_CTRC_ALL: /* Binary Counter Change Default Variation (Obj:22 Var:Default) */
case AL_OBJ_AI_ALL: /* Analog Input Default Variation (Obj:30, Var:Default) */
case AL_OBJ_AIC_ALL: /* Analog Input Change Default Variation (Obj:32 Var:Default) */
case AL_OBJ_AIDB_ALL: /* Analog Input Deadband Default Variation (Obj:34, Var:Default) */
case AL_OBJ_AOC_ALL: /* Analog Output Event Default Variation (Obj:42 Var:Default) */
offset = data_pos;
break;
/* Device Attributes - Integers */
case AL_OBJ_DA_MSTR_DSP: /* Device Attributes - Number of master-defined data set prototypes (Obj:00, Var:212) */
case AL_OBJ_DA_OS_DSP: /* Device Attributes - Number of outstation-defined data set prototypes (Obj:00, Var:213) */
case AL_OBJ_DA_MSTR_DS: /* Device Attributes - Number of master-defined data sets (Obj:00, Var:214) */
case AL_OBJ_DA_OS_DS: /* Device Attributes - Number of outstation-defined data sets (Obj:00, Var:215) */
case AL_OBJ_DA_BO_REQ: /* Device Attributes - Max number of binary outputs per request (Obj:00, Var:216) */
case AL_OBJ_DA_LOC_TA: /* Device Attributes - Local timing accuracy (Obj:00, Var:217) */
case AL_OBJ_DA_DUR_TA: /* Device Attributes - Duration of timing accuraccy (Obj:00, Var:218) */
case AL_OBJ_DA_AO_EVT: /* Device Attributes - Support for analog output events (Obj:00, Var:219) */
case AL_OBJ_DA_MAX_AO: /* Device Attributes - Max analog output index (Obj:00, Var:220) */
case AL_OBJ_DA_NUM_AO: /* Device Attributes - Number of analog outputs (Obj:00, Var:221) */
case AL_OBJ_DA_BO_EVT: /* Device Attributes - Support for binary output events (Obj:00, Var:222) */
case AL_OBJ_DA_MAX_BO: /* Device Attributes - Max binary output index (Obj:00, Var:223) */
case AL_OBJ_DA_NUM_BO: /* Device Attributes - Number of binary outputs (Obj:00, Var:224) */
case AL_OBJ_DA_FCTR_EVT: /* Device Attributes - Support for frozen counter events (Obj:00, Var:225) */
case AL_OBJ_DA_FCTR: /* Device Attributes - Support for frozen counters (Obj:00, Var:226) */
case AL_OBJ_DA_CTR_EVT: /* Device Attributes - Support for counter events (Obj:00, Var:227) */
case AL_OBJ_DA_MAX_CTR: /* Device Attributes - Max counter index (Obj:00, Var:228) */
case AL_OBJ_DA_NUM_CTR: /* Device Attributes - Number of counter points (Obj:00, Var:229) */
case AL_OBJ_DA_AIF: /* Device Attributes - Support for frozen analog inputs (Obj:00, Var:230) */
case AL_OBJ_DA_AI_EVT: /* Device Attributes - Support for analog input events (Obj:00, Var:231) */
case AL_OBJ_DA_MAX_AI: /* Device Attributes - Maximum analog input index (Obj:00, Var:232) */
case AL_OBJ_DA_NUM_AI: /* Device Attributes - Number of analog input points (Obj:00, Var:233) */
case AL_OBJ_DA_2BI_EVT: /* Device Attributes - Support for Double-Bit BI Events (Obj:00, Var:234) */
case AL_OBJ_DA_MAX_2BI: /* Device Attributes - Max Double-bit BI Point Index (Obj:00, Var:235) */
case AL_OBJ_DA_NUM_2BI: /* Device Attributes - Number of Double-bit BI Points (Obj:00, Var:236) */
case AL_OBJ_DA_BI_EVT: /* Device Attributes - Support for Binary Input Events (Obj:00, Var:237) */
case AL_OBJ_DA_MAX_BI: /* Device Attributes - Max Binary Input Point Index (Obj:00, Var:238) */
case AL_OBJ_DA_NUM_BI: /* Device Attributes - Number of Binary Input Points (Obj:00, Var:239) */
case AL_OBJ_DA_MXTX_FR: /* Device Attributes - Maximum Transmit Fragment Size (Obj:00, Var:240) */
case AL_OBJ_DA_MXRX_FR: /* Device Attributes - Maximum Receive Fragment Size (Obj:00, Var:241) */
proto_tree_add_item(point_tree, hf_dnp3_al_datatype, tvb, offset, 1, ENC_LITTLE_ENDIAN);
da_len = tvb_get_guint8(tvb, offset+1);
proto_tree_add_item(point_tree, hf_dnp3_al_da_length, tvb, offset+1, 1, ENC_LITTLE_ENDIAN);
if (da_len == 1) {
proto_tree_add_item(point_tree, hf_dnp3_al_da_int8, tvb, offset+2, 1, ENC_LITTLE_ENDIAN);
proto_item_append_text(object_item, ", Value: %u", tvb_get_guint8(tvb, offset+2));
}
else if (da_len == 4) {
proto_tree_add_item(point_tree, hf_dnp3_al_da_int32, tvb, offset+2, 4, ENC_LITTLE_ENDIAN);
proto_item_append_text(object_item, ", Value: %u", tvb_get_letohl(tvb, offset+2));
}
offset += 2 + da_len;
break;
/* Device Attributes - Strings */
case AL_OBJ_DA_USR_ATTR:
case AL_OBJ_DA_SWVER: /* Device Attributes - Device Manufacturers SW Version (Obj:00, Var:242) */
case AL_OBJ_DA_HWVER: /* Device Attributes - Device Manufacturers HW Version (Obj:00, Var:243) */
case AL_OBJ_DA_LOC: /* Device Attributes - User-Assigned Location (Obj:00, Var:245) */
case AL_OBJ_DA_ID: /* Device Attributes - User-Assigned ID code/number (Obj:00, Var:246) */
case AL_OBJ_DA_DEVNAME: /* Device Attributes - User-Assigned Device Name (Obj:00, Var:247) */
case AL_OBJ_DA_SERNUM: /* Device Attributes - Device Serial Number (Obj:00, Var:248) */
case AL_OBJ_DA_CONF: /* Device Attributes - DNP Subset and Conformance (Obj:00, Var:249) */
case AL_OBJ_DA_PROD: /* Device Attributes - Device Product Name and Model (Obj:00, Var:250) */
case AL_OBJ_DA_MFG: /* Device Attributes - Device Manufacturers Name (Obj:00, Var:252) */
{
const guint8* da_value;
proto_tree_add_item(point_tree, hf_dnp3_al_datatype, tvb, offset, 1, ENC_LITTLE_ENDIAN);
da_len = tvb_get_guint8(tvb, offset+1);
proto_tree_add_item(point_tree, hf_dnp3_al_da_length, tvb, offset+1, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item_ret_string(point_tree, hf_dnp3_al_da_value, tvb, offset+2, da_len, ENC_ASCII|ENC_NA, wmem_packet_scope(), &da_value);
proto_item_append_text(object_item, ", Value: %s", da_value);
offset += 2 + da_len;
break;
}
/* Bit-based Data objects here */
case AL_OBJ_BI_1BIT: /* Single-Bit Binary Input (Obj:01, Var:01) */
case AL_OBJ_BO: /* Binary Output (Obj:10, Var:01) */
case AL_OBJ_CTL_PMASK: /* Pattern Mask (Obj:12, Var:03) */
case AL_OBJ_IIN: /* Internal Indications - IIN (Obj: 80, Var:01) */
/* Extract the bit from the packed byte */
al_bi_val = tvb_get_guint8(tvb, offset);
al_bit = (al_bi_val & (1 << bitindex)) > 0;
if (al_obj == AL_OBJ_IIN) {
/* For an IIN bit, work out the IIN constant value for the bit position to get the name of the bit */
guint16 iin_bit = 0;
if (al_ptaddr < 8) {
iin_bit = 0x100 << al_ptaddr;
}
else {
iin_bit = 1 << (al_ptaddr - 8);
}
proto_item_append_text(point_item, " (%s), Value: %u",
val_to_str_const(iin_bit, dnp3_al_iin_vals, "Invalid IIN bit"), al_bit);
}
else {
proto_item_append_text(point_item, ", Value: %u", al_bit);
}
proto_tree_add_boolean(point_tree, hf_dnp3_al_bit, tvb, offset, 1, al_bit);
proto_item_set_len(point_item, prefixbytes + 1);
/* Increment the bit index for next cycle */
bitindex++;
/* If we have counted 8 bits or read the last item,
reset bit index and move onto the next byte */
if ((bitindex > 7) || (item_num == (num_items-1)))
{
bitindex = 0;
offset += (prefixbytes + 1);
}
break;
case AL_OBJ_2BI_NF: /* Double-bit Input No Flags (Obj:03, Var:01) */
if (bitindex > 3)
{
bitindex = 0;
offset += (prefixbytes + 1);
}
/* Extract the Double-bit from the packed byte */
al_bi_val = tvb_get_guint8(tvb, offset);
al_2bit = ((al_bi_val >> (bitindex << 1)) & 3);
proto_item_append_text(point_item, ", Value: %u", al_2bit);
proto_tree_add_uint(point_tree, hf_dnp3_al_2bit, tvb, offset, 1, al_2bit);
proto_item_set_len(point_item, prefixbytes + 1);
/* If we've read the last item, then move the offset past this byte */
if (item_num == (num_items-1))
{
offset += (prefixbytes + 1);
}
/* Increment the bit index for next cycle */
bitindex++;
break;
case AL_OBJ_BI_STAT: /* Binary Input With Status (Obj:01, Var:02) */
case AL_OBJ_BIC_NOTIME: /* Binary Input Change Without Time (Obj:02, Var:01) */
case AL_OBJ_BO_STAT: /* Binary Output Status (Obj:10, Var:02) */
case AL_OBJ_BOC_NOTIME: /* Binary Output Change Without Time (Obj:11, Var:01) */
/* Get Point Flags */
al_ptflags = tvb_get_guint8(tvb, data_pos);
switch (al_obj) {
case AL_OBJ_BI_STAT:
case AL_OBJ_BIC_NOTIME:
dnp3_al_obj_quality(tvb, data_pos, al_ptflags, point_tree, point_item, BIN_IN);
break;
case AL_OBJ_BO_STAT:
case AL_OBJ_BOC_NOTIME:
dnp3_al_obj_quality(tvb, data_pos, al_ptflags, point_tree, point_item, BIN_OUT);
break;
}
data_pos += 1;
al_bit = (al_ptflags & AL_OBJ_BI_FLAG7) > 0;
proto_item_append_text(point_item, ", Value: %u", al_bit);
proto_item_set_len(point_item, data_pos - offset);
offset = data_pos;
break;
case AL_OBJ_2BI_STAT: /* Double-bit Input With Status (Obj:03, Var:02) */
case AL_OBJ_2BIC_NOTIME: /* Double-bit Input Change Without Time (Obj:04, Var:01) */
/* Get Point Flags */
al_ptflags = tvb_get_guint8(tvb, data_pos);
dnp3_al_obj_quality(tvb, data_pos, al_ptflags, point_tree, point_item, BIN_IN);
data_pos += 1;
al_2bit = (al_ptflags >> 6) & 3;
proto_item_append_text(point_item, ", Value: %u", al_2bit);
proto_item_set_len(point_item, data_pos - offset);
offset = data_pos;
break;
case AL_OBJ_BIC_TIME: /* Binary Input Change w/ Time (Obj:02, Var:02) */
case AL_OBJ_BOC_TIME: /* Binary Output Change w/ Time (Obj:11, Var:02) */
/* Get Point Flags */
al_ptflags = tvb_get_guint8(tvb, data_pos);
switch (al_obj) {
case AL_OBJ_BIC_TIME:
dnp3_al_obj_quality(tvb, data_pos, al_ptflags, point_tree, point_item, BIN_IN);
break;
case AL_OBJ_BOC_TIME:
dnp3_al_obj_quality(tvb, data_pos, al_ptflags, point_tree, point_item, BIN_OUT);
break;
}
data_pos += 1;
/* Get timestamp */
dnp3_al_get_timestamp(&al_abstime, tvb, data_pos);
proto_tree_add_time(point_tree, hf_dnp3_al_timestamp, tvb, data_pos, 6, &al_abstime);
data_pos += 6;
al_bit = (al_ptflags & AL_OBJ_BI_FLAG7) >> 7; /* bit shift 1xxxxxxx -> xxxxxxx1 */
proto_item_append_text(point_item, ", Value: %u, Timestamp: %s",
al_bit, abs_time_to_str(wmem_packet_scope(), &al_abstime, ABSOLUTE_TIME_UTC, FALSE));
proto_item_set_len(point_item, data_pos - offset);
offset = data_pos;
break;
case AL_OBJ_2BIC_TIME: /* Double-bit Input Change w/ Time (Obj:04, Var:02) */
/* Get Point Flags */
al_ptflags = tvb_get_guint8(tvb, data_pos);
dnp3_al_obj_quality(tvb, (offset+prefixbytes), al_ptflags, point_tree, point_item, BIN_IN);
data_pos += 1;
/* Get timestamp */
dnp3_al_get_timestamp(&al_abstime, tvb, data_pos);
proto_tree_add_time(point_tree, hf_dnp3_al_timestamp, tvb, data_pos, 6, &al_abstime);
data_pos += 6;
al_2bit = (al_ptflags >> 6) & 3; /* bit shift 11xxxxxx -> 00000011 */
proto_item_append_text(point_item, ", Value: %u, Timestamp: %s",
al_2bit, abs_time_to_str(wmem_packet_scope(), &al_abstime, ABSOLUTE_TIME_UTC, FALSE));
proto_item_set_len(point_item, data_pos - offset);
offset = data_pos;
break;
case AL_OBJ_BIC_RTIME: /* Binary Input Change w/ Relative Time (Obj:02, Var:03) */
/* Get Point Flags */
al_ptflags = tvb_get_guint8(tvb, data_pos);
dnp3_al_obj_quality(tvb, data_pos, al_ptflags, point_tree, point_item, BIN_IN);
data_pos += 1;
/* Get relative time, and convert to ns_time */
al_relms = tvb_get_letohs(tvb, data_pos);
al_reltime.secs = al_relms / 1000;
al_reltime.nsecs = (al_relms % 1000) * 1000;
/* Now add to CTO time */
nstime_sum(&al_abstime, al_cto, &al_reltime);
proto_tree_add_time(point_tree, hf_dnp3_al_rel_timestamp, tvb, data_pos, 2, &al_reltime);
data_pos += 2;
al_bit = (al_ptflags & AL_OBJ_BI_FLAG7) >> 7; /* bit shift 1xxxxxxx -> xxxxxxx1 */
proto_item_append_text(point_item, ", Value: %u, Timestamp: %s",
al_bit, abs_time_to_str(wmem_packet_scope(), &al_abstime, ABSOLUTE_TIME_UTC, FALSE));
proto_item_set_len(point_item, data_pos - offset);
offset = data_pos;
break;
case AL_OBJ_CTLOP_BLK: /* Control Relay Output Block (Obj:12, Var:01) */
case AL_OBJ_CTL_PCB: /* Pattern Control Block (Obj:12, Var:02) */
{
proto_tree *tcc_tree;
/* Add a expand/collapse for TCC */
al_tcc_code = tvb_get_guint8(tvb, data_pos);
tcc_tree = proto_tree_add_subtree_format(point_tree, tvb, data_pos, 1,
ett_dnp3_al_obj_point_tcc, NULL, "Control Code [0x%02x]",al_tcc_code);
/* Add the Control Code to the Point number list for quick visual reference as to the operation */
proto_item_append_text(point_item, " [%s]", val_to_str_const((al_tcc_code & AL_OBJCTLC_CODE),
dnp3_al_ctlc_code_vals,
"Invalid Operation"));
/* Add Trip/Close qualifier (if applicable) to previously appended quick visual reference */
proto_item_append_text(point_item, " [%s]", val_to_str_const((al_tcc_code & AL_OBJCTLC_TC) >> 6,
dnp3_al_ctlc_tc_vals,
"Invalid Qualifier"));
/* Control Code 'Operation Type' */
proto_tree_add_item(tcc_tree, hf_dnp3_ctlobj_code_c, tvb, data_pos, 1, ENC_LITTLE_ENDIAN);
/* Control Code Misc Values */
proto_tree_add_item(tcc_tree, hf_dnp3_ctlobj_code_m, tvb, data_pos, 1, ENC_LITTLE_ENDIAN);
/* Control Code 'Trip Close Code' */
proto_tree_add_item(tcc_tree, hf_dnp3_ctlobj_code_tc, tvb, data_pos, 1, ENC_LITTLE_ENDIAN);
data_pos += 1;
/* Get "Count" Field */
proto_tree_add_item(point_tree, hf_dnp3_al_count, tvb, data_pos, 1, ENC_LITTLE_ENDIAN);
data_pos += 1;
/* Get "On Time" Field */
proto_tree_add_item(point_tree, hf_dnp3_al_on_time, tvb, data_pos, 4, ENC_LITTLE_ENDIAN);
data_pos += 4;
/* Get "Off Time" Field */
proto_tree_add_item(point_tree, hf_dnp3_al_off_time, tvb, data_pos, 4, ENC_LITTLE_ENDIAN);
data_pos += 4;
/* Get "Control Status" Field */
proto_tree_add_item(point_tree, hf_dnp3_al_ctrlstatus, tvb, data_pos, 1, ENC_LITTLE_ENDIAN);
data_pos += 1;
proto_item_set_len(point_item, data_pos - offset);
offset = data_pos;
break;
}
case AL_OBJ_BOE_NOTIME: /* Binary Command Event (Obj:13, Var:01) */
case AL_OBJ_BOE_TIME: /* Binary Command Event with time (Obj:13, Var:02) */
case AL_OBJ_AOC_32EVNT: /* 32-bit Analog Command Event (Obj:43, Var:01) */
case AL_OBJ_AOC_16EVNT: /* 16-bit Analog Command Event (Obj:43, Var:02) */
case AL_OBJ_AOC_32EVTT: /* 32-bit Analog Command Event with time (Obj:43, Var:03) */
case AL_OBJ_AOC_16EVTT: /* 16-bit Analog Command Event with time (Obj:43, Var:04) */
case AL_OBJ_AOC_FLTEVNT: /* 32-bit Floating Point Analog Command Event (Obj:43, Var:05) */
case AL_OBJ_AOC_DBLEVNT: /* 64-bit Floating Point Analog Command Event (Obj:43, Var:06) */
case AL_OBJ_AOC_FLTEVTT: /* 32-bit Floating Point Analog Command Event with time (Obj:43, Var:07) */
case AL_OBJ_AOC_DBLEVTT: /* 64-bit Floating Point Analog Command Event with time (Obj:43, Var:08) */
{
/* Get the status code */
al_ctlobj_stat = tvb_get_guint8(tvb, data_pos) & AL_OBJCTL_STATUS_MASK;
ctl_status_str = val_to_str_ext(al_ctlobj_stat, &dnp3_al_ctl_status_vals_ext, "Invalid Status (0x%02x)");
proto_item_append_text(point_item, " [Status: %s (0x%02x)]", ctl_status_str, al_ctlobj_stat);
proto_tree_add_item(point_tree, hf_dnp3_al_ctrlstatus, tvb, data_pos, 1, ENC_LITTLE_ENDIAN);
/* Get the command value */
switch(al_obj)
{
case AL_OBJ_BOE_NOTIME:
case AL_OBJ_BOE_TIME:
proto_tree_add_item(point_tree, hf_dnp3_bocs_bit, tvb, data_pos, 1, ENC_LITTLE_ENDIAN);
data_pos += 1;
break;
case AL_OBJ_AOC_32EVNT:
case AL_OBJ_AOC_32EVTT:
data_pos += 1; /* Step past status */
al_val_int32 = tvb_get_letohl(tvb, data_pos);
proto_item_append_text(point_item, ", Value: %d", al_val_int32);
proto_tree_add_item(point_tree, hf_dnp3_al_anaout32, tvb, data_pos, 4, ENC_LITTLE_ENDIAN);
break;
case AL_OBJ_AOC_16EVNT:
case AL_OBJ_AOC_16EVTT:
data_pos += 1; /* Step past status */
al_val_int16 = tvb_get_letohs(tvb, data_pos);
proto_item_append_text(point_item, ", Value: %d", al_val_int16);
proto_tree_add_item(point_tree, hf_dnp3_al_anaout16, tvb, data_pos, 2, ENC_LITTLE_ENDIAN);
data_pos += 2;
break;
case AL_OBJ_AOC_FLTEVNT:
case AL_OBJ_AOC_FLTEVTT:
data_pos += 1; /* Step past status */
al_valflt = tvb_get_letohieee_float(tvb, data_pos);
proto_item_append_text(point_item, ", Value: %g", al_valflt);
proto_tree_add_item(point_tree, hf_dnp3_al_anaoutflt, tvb, data_pos, 4, ENC_LITTLE_ENDIAN);
data_pos += 4;
break;
case AL_OBJ_AOC_DBLEVNT:
case AL_OBJ_AOC_DBLEVTT:
data_pos += 1; /* Step past status */
al_valdbl = tvb_get_letohieee_double(tvb, data_pos);
proto_item_append_text(point_item, ", Value: %g", al_valdbl);
proto_tree_add_item(point_tree, hf_dnp3_al_anaoutdbl, tvb, data_pos, 8, ENC_LITTLE_ENDIAN);
data_pos += 8;
break;
}
/* Get the timestamp */
if (al_obj & 0x02)
{
dnp3_al_get_timestamp(&al_abstime, tvb, data_pos);
proto_item_append_text(point_item, ", Timestamp: %s", abs_time_to_str(wmem_packet_scope(), &al_abstime, ABSOLUTE_TIME_UTC, FALSE));
proto_tree_add_time(point_tree, hf_dnp3_al_timestamp, tvb, data_pos, 6, &al_abstime);
data_pos += 6;
}
proto_item_set_len(point_item, data_pos - offset);
offset = data_pos;
break;
}
case AL_OBJ_AO_32OPB: /* 32-Bit Analog Output Block (Obj:41, Var:01) */
case AL_OBJ_AO_16OPB: /* 16-Bit Analog Output Block (Obj:41, Var:02) */
case AL_OBJ_AO_FLTOPB: /* 32-Bit Floating Point Output Block (Obj:41, Var:03) */
case AL_OBJ_AO_DBLOPB: /* 64-Bit Floating Point Output Block (Obj:41, Var:04) */
switch (al_obj)
{
case AL_OBJ_AO_32OPB:
al_val_int32 = tvb_get_letohl(tvb, data_pos);
proto_item_append_text(point_item, ", Value: %d", al_val_int32);
proto_tree_add_item(point_tree, hf_dnp3_al_anaout32, tvb, data_pos, 4, ENC_LITTLE_ENDIAN);
data_pos += 4;
break;
case AL_OBJ_AO_16OPB:
al_val_int16 = tvb_get_letohs(tvb, data_pos);
proto_item_append_text(point_item, ", Value: %d", al_val_int16);
proto_tree_add_item(point_tree, hf_dnp3_al_anaout16, tvb, data_pos, 2, ENC_LITTLE_ENDIAN);
data_pos += 2;
break;
case AL_OBJ_AO_FLTOPB:
al_valflt = tvb_get_letohieee_float(tvb, data_pos);
proto_item_append_text(point_item, ", Value: %g", al_valflt);
proto_tree_add_item(point_tree, hf_dnp3_al_anaoutflt, tvb, data_pos, 4, ENC_LITTLE_ENDIAN);
data_pos += 4;
break;
case AL_OBJ_AO_DBLOPB:
al_valdbl = tvb_get_letohieee_double(tvb, data_pos);
proto_item_append_text(point_item, ", Value: %g", al_valdbl);
proto_tree_add_item(point_tree, hf_dnp3_al_anaoutdbl, tvb, data_pos, 8, ENC_LITTLE_ENDIAN);
data_pos += 8;
break;
}
/* Get control status */
al_ctlobj_stat = tvb_get_guint8(tvb, data_pos) & AL_OBJCTL_STATUS_MASK;
ctl_status_str = val_to_str_ext(al_ctlobj_stat, &dnp3_al_ctl_status_vals_ext, "Invalid Status (0x%02x)");
proto_item_append_text(point_item, " [Status: %s (0x%02x)]", ctl_status_str, al_ctlobj_stat);
proto_tree_add_item(point_tree, hf_dnp3_al_ctrlstatus, tvb, data_pos, 1, ENC_LITTLE_ENDIAN);
data_pos += 1;
proto_item_set_len(point_item, data_pos - offset);
offset = data_pos;
break;
case AL_OBJ_CTR_32: /* 32-Bit Binary Counter (Obj:20, Var:01) */
case AL_OBJ_CTR_16: /* 16-Bit Binary Counter (Obj:20, Var:02) */
case AL_OBJ_DCTR_32: /* 32-Bit Binary Delta Counter (Obj:20, Var:03) */
case AL_OBJ_DCTR_16: /* 16-Bit Binary Delta Counter (Obj:20, Var:04) */
case AL_OBJ_CTR_32NF: /* 32-Bit Binary Counter Without Flag (Obj:20, Var:05) */
case AL_OBJ_CTR_16NF: /* 16-Bit Binary Counter Without Flag (Obj:20, Var:06) */
case AL_OBJ_DCTR_32NF: /* 32-Bit Binary Delta Counter Without Flag (Obj:20, Var:07) */
case AL_OBJ_DCTR_16NF: /* 16-Bit Binary Delta Counter Without Flag (Obj:20, Var:08) */
case AL_OBJ_FCTR_32: /* 32-Bit Frozen Counter (Obj:21, Var:01) */
case AL_OBJ_FCTR_16: /* 16-Bit Frozen Counter (Obj:21, Var:02) */
case AL_OBJ_FDCTR_32: /* 21 03 32-Bit Frozen Delta Counter */
case AL_OBJ_FDCTR_16: /* 21 04 16-Bit Frozen Delta Counter */
case AL_OBJ_FCTR_32T: /* 21 05 32-Bit Frozen Counter w/ Time of Freeze */
case AL_OBJ_FCTR_16T: /* 21 06 16-Bit Frozen Counter w/ Time of Freeze */
case AL_OBJ_FDCTR_32T: /* 21 07 32-Bit Frozen Delta Counter w/ Time of Freeze */
case AL_OBJ_FDCTR_16T: /* 21 08 16-Bit Frozen Delta Counter w/ Time of Freeze */
case AL_OBJ_FCTR_32NF: /* 21 09 32-Bit Frozen Counter Without Flag */
case AL_OBJ_FCTR_16NF: /* 21 10 16-Bit Frozen Counter Without Flag */
case AL_OBJ_FDCTR_32NF: /* 21 11 32-Bit Frozen Delta Counter Without Flag */
case AL_OBJ_FDCTR_16NF: /* 21 12 16-Bit Frozen Delta Counter Without Flag */
case AL_OBJ_CTRC_32: /* 32-Bit Counter Change Event w/o Time (Obj:22, Var:01) */
case AL_OBJ_CTRC_16: /* 16-Bit Counter Change Event w/o Time (Obj:22, Var:02) */
case AL_OBJ_DCTRC_32: /* 32-Bit Delta Counter Change Event w/o Time (Obj:22, Var:03) */
case AL_OBJ_DCTRC_16: /* 16-Bit Delta Counter Change Event w/o Time (Obj:22, Var:04) */
case AL_OBJ_CTRC_32T: /* 32-Bit Counter Change Event with Time (Obj:22, Var:05) */
case AL_OBJ_CTRC_16T: /* 16-Bit Counter Change Event with Time (Obj:22, Var:06) */
case AL_OBJ_DCTRC_32T: /* 32-Bit Delta Counter Change Event with Time (Obj:22, Var:07) */
case AL_OBJ_DCTRC_16T: /* 16-Bit Delta Counter Change Event with Time (Obj:22, Var:08) */
case AL_OBJ_FCTRC_32: /* 21 01 32-Bit Frozen Counter Change Event */
case AL_OBJ_FCTRC_16: /* 21 02 16-Bit Frozen Counter Change Event */
case AL_OBJ_FDCTRC_32: /* 21 03 32-Bit Frozen Delta Counter Change Event */
case AL_OBJ_FDCTRC_16: /* 21 04 16-Bit Frozen Delta Counter Change Event */
case AL_OBJ_FCTRC_32T: /* 21 05 32-Bit Frozen Counter Change Event w/ Time of Freeze */
case AL_OBJ_FCTRC_16T: /* 21 06 16-Bit Frozen Counter Change Event w/ Time of Freeze */
case AL_OBJ_FDCTRC_32T: /* 21 07 32-Bit Frozen Delta Counter Change Event w/ Time of Freeze */
case AL_OBJ_FDCTRC_16T: /* 21 08 16-Bit Frozen Delta Counter Change Event w/ Time of Freeze */
/* Get Point Flags for those types that have them, it's easier to block out those that don't have flags */
switch (al_obj)
{
case AL_OBJ_CTR_32NF:
case AL_OBJ_CTR_16NF:
case AL_OBJ_DCTR_32NF:
case AL_OBJ_DCTR_16NF:
case AL_OBJ_FCTR_32NF:
case AL_OBJ_FCTR_16NF:
case AL_OBJ_FDCTR_32NF:
case AL_OBJ_FDCTR_16NF:
break;
default:
al_ptflags = tvb_get_guint8(tvb, data_pos);
dnp3_al_obj_quality(tvb, data_pos, al_ptflags, point_tree, point_item, COUNTER);
data_pos += 1;
break;
}
/* Get Counter values */
switch (al_obj)
{
case AL_OBJ_CTR_32:
case AL_OBJ_DCTR_32:
case AL_OBJ_CTR_32NF:
case AL_OBJ_DCTR_32NF:
case AL_OBJ_FCTR_32:
case AL_OBJ_FDCTR_32:
case AL_OBJ_FCTR_32T:
case AL_OBJ_FDCTR_32T:
case AL_OBJ_FCTR_32NF:
case AL_OBJ_FDCTR_32NF:
case AL_OBJ_CTRC_32:
case AL_OBJ_DCTRC_32:
case AL_OBJ_CTRC_32T:
case AL_OBJ_DCTRC_32T:
case AL_OBJ_FCTRC_32:
case AL_OBJ_FDCTRC_32:
case AL_OBJ_FCTRC_32T:
case AL_OBJ_FDCTRC_32T:
al_val_uint32 = tvb_get_letohl(tvb, data_pos);
proto_item_append_text(point_item, ", Count: %u", al_val_uint32);
proto_tree_add_item(point_tree, hf_dnp3_al_cnt32, tvb, data_pos, 4, ENC_LITTLE_ENDIAN);
data_pos += 4;
break;
case AL_OBJ_CTR_16:
case AL_OBJ_DCTR_16:
case AL_OBJ_CTR_16NF:
case AL_OBJ_DCTR_16NF:
case AL_OBJ_FCTR_16:
case AL_OBJ_FDCTR_16:
case AL_OBJ_FCTR_16T:
case AL_OBJ_FDCTR_16T:
case AL_OBJ_FCTR_16NF:
case AL_OBJ_FDCTR_16NF:
case AL_OBJ_CTRC_16:
case AL_OBJ_DCTRC_16:
case AL_OBJ_CTRC_16T:
case AL_OBJ_DCTRC_16T:
case AL_OBJ_FCTRC_16:
case AL_OBJ_FDCTRC_16:
case AL_OBJ_FCTRC_16T:
case AL_OBJ_FDCTRC_16T:
al_val_uint16 = tvb_get_letohs(tvb, data_pos);
proto_item_append_text(point_item, ", Count: %u", al_val_uint16);
proto_tree_add_item(point_tree, hf_dnp3_al_cnt16, tvb, data_pos, 2, ENC_LITTLE_ENDIAN);
data_pos += 2;
break;
}
/* Get the time for those points that have it */
switch (al_obj)
{
case AL_OBJ_FCTR_32T:
case AL_OBJ_FCTR_16T:
case AL_OBJ_FDCTR_32T:
case AL_OBJ_FDCTR_16T:
case AL_OBJ_CTRC_32T:
case AL_OBJ_CTRC_16T:
case AL_OBJ_DCTRC_32T:
case AL_OBJ_DCTRC_16T:
case AL_OBJ_FCTRC_32T:
case AL_OBJ_FCTRC_16T:
case AL_OBJ_FDCTRC_32T:
case AL_OBJ_FDCTRC_16T:
dnp3_al_get_timestamp(&al_abstime, tvb, data_pos);
proto_item_append_text(point_item, ", Timestamp: %s", abs_time_to_str(wmem_packet_scope(), &al_abstime, ABSOLUTE_TIME_UTC, FALSE));
proto_tree_add_time(point_tree, hf_dnp3_al_timestamp, tvb, data_pos, 6, &al_abstime);
data_pos += 6;
break;
}
proto_item_set_len(point_item, data_pos - offset);
offset = data_pos;
break;
case AL_OBJ_AI_32: /* 32-Bit Analog Input (Obj:30, Var:01) */
case AL_OBJ_AI_16: /* 16-Bit Analog Input (Obj:30, Var:02) */
case AL_OBJ_AI_32NF: /* 32-Bit Analog Input Without Flag (Obj:30, Var:03) */
case AL_OBJ_AI_16NF: /* 16-Bit Analog Input Without Flag (Obj:30, Var:04) */
case AL_OBJ_AI_FLT: /* 32-Bit Floating Point Input (Obj:30, Var:05) */
case AL_OBJ_AI_DBL: /* 64-Bit Floating Point Input (Obj:30, Var:06) */
case AL_OBJ_AIF_FLT: /* 32-Bit Frozen Floating Point Input (Obj:31, Var:07) */
case AL_OBJ_AIF_DBL: /* 64-Bit Frozen Floating Point Input (Obj:31, Var:08) */
case AL_OBJ_AIC_32NT: /* 32-Bit Analog Change Event w/o Time (Obj:32, Var:01) */
case AL_OBJ_AIC_16NT: /* 16-Bit Analog Change Event w/o Time (Obj:32, Var:02) */
case AL_OBJ_AIC_32T: /* 32-Bit Analog Change Event with Time (Obj:32, Var:03) */
case AL_OBJ_AIC_16T: /* 16-Bit Analog Change Event with Time (Obj:32, Var:04) */
case AL_OBJ_AIC_FLTNT: /* 32-Bit Floating Point Change Event w/o Time (Obj:32, Var:05) */
case AL_OBJ_AIC_DBLNT: /* 64-Bit Floating Point Change Event w/o Time (Obj:32, Var:06) */
case AL_OBJ_AIC_FLTT: /* 32-Bit Floating Point Change Event w/ Time (Obj:32, Var:07) */
case AL_OBJ_AIC_DBLT: /* 64-Bit Floating Point Change Event w/ Time (Obj:32, Var:08) */
case AL_OBJ_AIFC_FLTNT: /* 32-Bit Floating Point Frozen Change Event w/o Time (Obj:33, Var:05) */
case AL_OBJ_AIFC_DBLNT: /* 64-Bit Floating Point Frozen Change Event w/o Time (Obj:33, Var:06) */
case AL_OBJ_AIFC_FLTT: /* 32-Bit Floating Point Frozen Change Event w/ Time (Obj:33, Var:07) */
case AL_OBJ_AIFC_DBLT: /* 64-Bit Floating Point Frozen Change Event w/ Time (Obj:33, Var:08) */
case AL_OBJ_AIDB_16: /* 16-Bit Analog Input Deadband (Obj:34, Var:01) */
case AL_OBJ_AIDB_32: /* 32-Bit Analog Input Deadband (Obj:34, Var:02) */
case AL_OBJ_AIDB_FLT: /* 32-Bit Floating Point Analog Input Deadband (Obj:34, Var:03) */
/* Get Point Flags for those types that have them */
switch (al_obj)
{
case AL_OBJ_AI_32NF:
case AL_OBJ_AI_16NF:
case AL_OBJ_AIDB_16:
case AL_OBJ_AIDB_32:
case AL_OBJ_AIDB_FLT:
break;
default:
al_ptflags = tvb_get_guint8(tvb, data_pos);
dnp3_al_obj_quality(tvb, data_pos, al_ptflags, point_tree, point_item, ANA_IN);
data_pos += 1;
break;
}
switch (al_obj)
{
case AL_OBJ_AI_32:
case AL_OBJ_AI_32NF:
case AL_OBJ_AIC_32NT:
case AL_OBJ_AIC_32T:
case AL_OBJ_AIDB_32:
al_val_int32 = tvb_get_letohl(tvb, data_pos);
proto_item_append_text(point_item, ", Value: %d", al_val_int32);
proto_tree_add_item(point_tree, hf_dnp3_al_ana32, tvb, data_pos, 4, ENC_LITTLE_ENDIAN);
data_pos += 4;
break;
case AL_OBJ_AI_16:
case AL_OBJ_AI_16NF:
case AL_OBJ_AIC_16NT:
case AL_OBJ_AIC_16T:
case AL_OBJ_AIDB_16:
al_val_int16 = tvb_get_letohs(tvb, data_pos);
proto_item_append_text(point_item, ", Value: %d", al_val_int16);
proto_tree_add_item(point_tree, hf_dnp3_al_ana16, tvb, data_pos, 2, ENC_LITTLE_ENDIAN);
data_pos += 2;
break;
case AL_OBJ_AI_FLT:
case AL_OBJ_AIF_FLT:
case AL_OBJ_AIC_FLTNT:
case AL_OBJ_AIC_FLTT:
case AL_OBJ_AIFC_FLTNT:
case AL_OBJ_AIFC_FLTT:
case AL_OBJ_AIDB_FLT:
al_valflt = tvb_get_letohieee_float(tvb, data_pos);
proto_item_append_text(point_item, ", Value: %g", al_valflt);
proto_tree_add_item(point_tree, hf_dnp3_al_anaflt, tvb, data_pos, 4, ENC_LITTLE_ENDIAN);
data_pos += 4;
break;
case AL_OBJ_AI_DBL:
case AL_OBJ_AIF_DBL:
case AL_OBJ_AIC_DBLNT:
case AL_OBJ_AIC_DBLT:
case AL_OBJ_AIFC_DBLNT:
case AL_OBJ_AIFC_DBLT:
al_valdbl = tvb_get_letohieee_double(tvb, data_pos);
proto_item_append_text(point_item, ", Value: %g", al_valdbl);
proto_tree_add_item(point_tree, hf_dnp3_al_anadbl, tvb, data_pos, 8, ENC_LITTLE_ENDIAN);
data_pos += 8;
break;
}
/* Get timestamp */
switch (al_obj)
{
case AL_OBJ_AIC_32T:
case AL_OBJ_AIC_16T:
case AL_OBJ_AIC_FLTT:
case AL_OBJ_AIC_DBLT:
case AL_OBJ_AIFC_FLTT:
case AL_OBJ_AIFC_DBLT:
dnp3_al_get_timestamp(&al_abstime, tvb, data_pos);
proto_item_append_text(point_item, ", Timestamp: %s", abs_time_to_str(wmem_packet_scope(), &al_abstime, ABSOLUTE_TIME_UTC, FALSE));
proto_tree_add_time(point_tree, hf_dnp3_al_timestamp, tvb, data_pos, 6, &al_abstime);
data_pos += 6;
break;
}
proto_item_set_len(point_item, data_pos - offset);
offset = data_pos;
break;
case AL_OBJ_AO_32: /* 32-Bit Analog Output Status (Obj:40, Var:01) */
case AL_OBJ_AO_16: /* 16-Bit Analog Output Status (Obj:40, Var:02) */
case AL_OBJ_AO_FLT: /* 32-Bit Floating Point Output Status (Obj:40, Var:03) */
case AL_OBJ_AO_DBL: /* 64-Bit Floating Point Output Status (Obj:40, Var:04) */
case AL_OBJ_AOC_32NT: /* 32-Bit Analog Output Event w/o Time (Obj:42, Var:01) */
case AL_OBJ_AOC_16NT: /* 16-Bit Analog Output Event w/o Time (Obj:42, Var:02) */
case AL_OBJ_AOC_32T: /* 32-Bit Analog Output Event with Time (Obj:42, Var:03) */
case AL_OBJ_AOC_16T: /* 16-Bit Analog Output Event with Time (Obj:42, Var:04) */
case AL_OBJ_AOC_FLTNT: /* 32-Bit Floating Point Output Event w/o Time (Obj:42, Var:05) */
case AL_OBJ_AOC_DBLNT: /* 64-Bit Floating Point Output Event w/o Time (Obj:42, Var:06) */
case AL_OBJ_AOC_FLTT: /* 32-Bit Floating Point Output Event w/ Time (Obj:42, Var:07) */
case AL_OBJ_AOC_DBLT: /* 64-Bit Floating Point Output Event w/ Time (Obj:42, Var:08) */
/* Get Point Flags */
al_ptflags = tvb_get_guint8(tvb, data_pos);
dnp3_al_obj_quality(tvb, data_pos, al_ptflags, point_tree, point_item, ANA_OUT);
data_pos += 1;
switch (al_obj)
{
case AL_OBJ_AO_32: /* 32-Bit Analog Output Status (Obj:40, Var:01) */
case AL_OBJ_AOC_32NT: /* 32-Bit Analog Output Event w/o Time (Obj:42, Var:01) */
case AL_OBJ_AOC_32T: /* 32-Bit Analog Output Event with Time (Obj:42, Var:03) */
al_val_int32 = tvb_get_letohl(tvb, data_pos);
proto_item_append_text(point_item, ", Value: %d", al_val_int32);
proto_tree_add_item(point_tree, hf_dnp3_al_anaout32, tvb, data_pos, 4, ENC_LITTLE_ENDIAN);
data_pos += 4;
break;
case AL_OBJ_AO_16: /* 16-Bit Analog Output Status (Obj:40, Var:02) */
case AL_OBJ_AOC_16NT: /* 16-Bit Analog Output Event w/o Time (Obj:42, Var:02) */
case AL_OBJ_AOC_16T: /* 16-Bit Analog Output Event with Time (Obj:42, Var:04) */
al_val_int16 = tvb_get_letohs(tvb, data_pos);
proto_item_append_text(point_item, ", Value: %d", al_val_int16);
proto_tree_add_item(point_tree, hf_dnp3_al_anaout16, tvb, data_pos, 2, ENC_LITTLE_ENDIAN);
data_pos += 2;
break;
case AL_OBJ_AO_FLT: /* 32-Bit Floating Point Output Status (Obj:40, Var:03) */
case AL_OBJ_AOC_FLTNT: /* 32-Bit Floating Point Output Event w/o Time (Obj:42, Var:05) */
case AL_OBJ_AOC_FLTT: /* 32-Bit Floating Point Output Event w/ Time (Obj:42, Var:07) */
al_valflt = tvb_get_letohieee_float(tvb, data_pos);
proto_item_append_text(point_item, ", Value: %g", al_valflt);
proto_tree_add_item(point_tree, hf_dnp3_al_anaoutflt, tvb, data_pos, 4, ENC_LITTLE_ENDIAN);
data_pos += 4;
break;
case AL_OBJ_AO_DBL: /* 64-Bit Floating Point Output Status (Obj:40, Var:04) */
case AL_OBJ_AOC_DBLNT: /* 64-Bit Floating Point Output Event w/o Time (Obj:42, Var:06) */
case AL_OBJ_AOC_DBLT: /* 64-Bit Floating Point Output Event w/ Time (Obj:42, Var:08) */
al_valdbl = tvb_get_letohieee_double(tvb, data_pos);
proto_item_append_text(point_item, ", Value: %g", al_valdbl);
proto_tree_add_item(point_tree, hf_dnp3_al_anaoutdbl, tvb, data_pos, 8, ENC_LITTLE_ENDIAN);
data_pos += 8;
break;
}
/* Get timestamp */
switch (al_obj)
{
case AL_OBJ_AOC_32T:
case AL_OBJ_AOC_16T:
case AL_OBJ_AOC_FLTT:
case AL_OBJ_AOC_DBLT:
dnp3_al_get_timestamp(&al_abstime, tvb, data_pos);
proto_item_append_text(point_item, ", Timestamp: %s", abs_time_to_str(wmem_packet_scope(), &al_abstime, ABSOLUTE_TIME_UTC, FALSE));
proto_tree_add_time(point_tree, hf_dnp3_al_timestamp, tvb, data_pos, 6, &al_abstime);
data_pos += 6;
break;
}
proto_item_set_len(point_item, data_pos - offset);
offset = data_pos;
break;
case AL_OBJ_TD: /* Time and Date (Obj:50, Var:01) */
case AL_OBJ_TDR: /* Time and Date at Last Recorded Time (Obj:50, Var:03) */
case AL_OBJ_TDCTO: /* Time and Date CTO (Obj:51, Var:01) */
dnp3_al_get_timestamp(&al_abstime, tvb, data_pos);
proto_tree_add_time(object_tree, hf_dnp3_al_timestamp, tvb, data_pos, 6, &al_abstime);
data_pos += 6;
proto_item_set_len(point_item, data_pos - offset);
if (al_obj == AL_OBJ_TDCTO) {
/* Copy the time object to the CTO for any other relative time objects in this response */
nstime_copy(al_cto, &al_abstime);
}
offset = data_pos;
break;
case AL_OBJ_TDELAYF: /* Time Delay - Fine (Obj:52, Var:02) */
al_val_uint16 = tvb_get_letohs(tvb, data_pos);
proto_tree_add_uint_format_value(object_tree, hf_dnp3_al_time_delay, tvb, data_pos, 2, al_val_uint16, "%u ms", al_val_uint16);
data_pos += 2;
proto_item_set_len(point_item, data_pos - offset);
offset = data_pos;
break;
case AL_OBJ_CLASS0: /* Class Data Objects */
case AL_OBJ_CLASS1:
case AL_OBJ_CLASS2:
case AL_OBJ_CLASS3:
/* No data here */
offset = data_pos;
break;
case AL_OBJ_FILE_CMD: /* File Control - File Command (Obj:70, Var:03) */
/* File name offset and length */
proto_tree_add_item(point_tree, hf_dnp3_al_file_string_offset, tvb, data_pos, 2, ENC_LITTLE_ENDIAN);
data_pos += 2;
al_filename_len = tvb_get_letohs(tvb, data_pos);
proto_tree_add_item(point_tree, hf_dnp3_al_file_string_length, tvb, data_pos, 2, ENC_LITTLE_ENDIAN);
data_pos += 2;
/* Grab the mode as it determines if some of the following fields are relevant */
al_file_ctrl_mode = tvb_get_letohs(tvb, data_pos + 16);
/* Creation Time */
if (al_file_ctrl_mode == AL_OBJ_FILE_MODE_WRITE) {
dnp3_al_get_timestamp(&al_abstime, tvb, data_pos);
proto_tree_add_time(point_tree, hf_dnp3_al_timestamp, tvb, data_pos, 6, &al_abstime);
}
data_pos += 6;
/* Perms */
if (al_file_ctrl_mode == AL_OBJ_FILE_MODE_WRITE) {
proto_item *perms_item;
proto_tree *perms_tree;
perms_item = proto_tree_add_item(point_tree, hf_dnp3_al_file_perms, tvb, offset, 2, ENC_LITTLE_ENDIAN);
perms_tree = proto_item_add_subtree(perms_item, ett_dnp3_al_obj_point_perms);
proto_tree_add_item(perms_tree, hf_dnp3_al_file_perms_read_owner, tvb, offset, 2, ENC_LITTLE_ENDIAN);
proto_tree_add_item(perms_tree, hf_dnp3_al_file_perms_write_owner, tvb, offset, 2, ENC_LITTLE_ENDIAN);
proto_tree_add_item(perms_tree, hf_dnp3_al_file_perms_exec_owner, tvb, offset, 2, ENC_LITTLE_ENDIAN);
proto_tree_add_item(perms_tree, hf_dnp3_al_file_perms_read_group, tvb, offset, 2, ENC_LITTLE_ENDIAN);
proto_tree_add_item(perms_tree, hf_dnp3_al_file_perms_write_group, tvb, offset, 2, ENC_LITTLE_ENDIAN);
proto_tree_add_item(perms_tree, hf_dnp3_al_file_perms_exec_group, tvb, offset, 2, ENC_LITTLE_ENDIAN);
proto_tree_add_item(perms_tree, hf_dnp3_al_file_perms_read_world, tvb, offset, 2, ENC_LITTLE_ENDIAN);
proto_tree_add_item(perms_tree, hf_dnp3_al_file_perms_write_world, tvb, offset, 2, ENC_LITTLE_ENDIAN);
proto_tree_add_item(perms_tree, hf_dnp3_al_file_perms_exec_world, tvb, offset, 2, ENC_LITTLE_ENDIAN);
}
data_pos += 2;
/* Auth Key */
proto_tree_add_item(point_tree, hf_dnp3_al_file_auth, tvb, data_pos, 4, ENC_LITTLE_ENDIAN);
data_pos += 4;
/* File Size */
if (al_file_ctrl_mode == AL_OBJ_FILE_MODE_WRITE || al_file_ctrl_mode == AL_OBJ_FILE_MODE_APPEND) {
proto_tree_add_item(point_tree, hf_dnp3_al_file_size, tvb, data_pos, 4, ENC_LITTLE_ENDIAN);
}
data_pos += 4;
/* Mode */
proto_tree_add_item(point_tree, hf_dnp3_al_file_mode, tvb, data_pos, 2, ENC_LITTLE_ENDIAN);
data_pos += 2;
/* Max Block Size */
proto_tree_add_item(point_tree, hf_dnp3_al_file_maxblk, tvb, data_pos, 2, ENC_LITTLE_ENDIAN);
data_pos += 2;
/* Request ID */
proto_tree_add_item(point_tree, hf_dnp3_al_file_reqID, tvb, data_pos, 2, ENC_LITTLE_ENDIAN);
data_pos += 2;
/* Filename */
if (al_filename_len > 0) {
proto_tree_add_item(point_tree, hf_dnp3_al_file_name, tvb, data_pos, al_filename_len, ENC_ASCII|ENC_NA);
}
data_pos += al_filename_len;
proto_item_set_len(point_item, data_pos - offset);
offset = data_pos;
break;
case AL_OBJ_FILE_STAT: /* File Control - File Status (Obj:70, Var:04) */
/* File Handle */
proto_tree_add_item(point_tree, hf_dnp3_al_file_handle, tvb, data_pos, 4, ENC_LITTLE_ENDIAN);
data_pos += 4;
/* File Size */
proto_tree_add_item(point_tree, hf_dnp3_al_file_size, tvb, data_pos, 4, ENC_LITTLE_ENDIAN);
data_pos += 4;
/* Max Block Size */
proto_tree_add_item(point_tree, hf_dnp3_al_file_maxblk, tvb, data_pos, 2, ENC_LITTLE_ENDIAN);
data_pos += 2;
/* Request ID */
proto_tree_add_item(point_tree, hf_dnp3_al_file_reqID, tvb, data_pos, 2, ENC_LITTLE_ENDIAN);
data_pos += 2;
/* Status code */
proto_tree_add_item(point_tree, hf_dnp3_al_file_status, tvb, data_pos, 1, ENC_LITTLE_ENDIAN);
data_pos += 1;
/* Optional text */
file_data_size = al_ptaddr - (data_pos - offset - prefixbytes);
if ((file_data_size) > 0) {
proto_tree_add_item(point_tree, hf_dnp3_al_file_data, tvb, data_pos, file_data_size, ENC_NA);
data_pos += file_data_size;
}
proto_item_set_len(point_item, data_pos - offset);
offset = data_pos;
break;
case AL_OBJ_FILE_TRANS: /* File Control - File Transport (Obj:70, Var:05) */
/* File Handle */
proto_tree_add_item(point_tree, hf_dnp3_al_file_handle, tvb, data_pos, 4, ENC_LITTLE_ENDIAN);
data_pos += 4;
/* File block (bits 0 - 30) and last block flag (bit 31) */
proto_tree_add_item(point_tree, hf_dnp3_al_file_blocknum, tvb, data_pos, 4, ENC_LITTLE_ENDIAN);
proto_tree_add_item(point_tree, hf_dnp3_al_file_lastblock, tvb, data_pos, 4, ENC_LITTLE_ENDIAN);
data_pos += 4;
/* File data */
file_data_size = al_ptaddr - (data_pos - offset - prefixbytes);
if ((file_data_size) > 0) {
proto_tree_add_item(point_tree, hf_dnp3_al_file_data, tvb, data_pos, file_data_size, ENC_NA);
data_pos += file_data_size;
}
proto_item_set_len(point_item, data_pos - offset);
offset = data_pos;
break;
case AL_OBJ_FILE_TRAN_ST: /* File Control Tansport Status (Obj:70, Var:06) */
/* File Handle */
proto_tree_add_item(point_tree, hf_dnp3_al_file_handle, tvb, data_pos, 4, ENC_LITTLE_ENDIAN);
data_pos += 4;
/* File block (bits 0 - 30) and last block flag (bit 31) */
proto_tree_add_item(point_tree, hf_dnp3_al_file_blocknum, tvb, data_pos, 4, ENC_LITTLE_ENDIAN);
proto_tree_add_item(point_tree, hf_dnp3_al_file_lastblock, tvb, data_pos, 4, ENC_LITTLE_ENDIAN);
data_pos += 4;
/* Status code */
proto_tree_add_item(point_tree, hf_dnp3_al_file_status, tvb, data_pos, 1, ENC_LITTLE_ENDIAN);
data_pos += 1;
/* Optional text */
file_data_size = al_ptaddr - (data_pos - offset - prefixbytes);
if ((file_data_size) > 0) {
proto_tree_add_item(point_tree, hf_dnp3_al_file_data, tvb, data_pos, file_data_size, ENC_NA);
data_pos += file_data_size;
}
proto_item_set_len(point_item, data_pos - offset);
offset = data_pos;
break;
case AL_OBJ_OCT: /* Octet string */
case AL_OBJ_OCT_EVT: /* Octet string event */
/* read the number of bytes defined by the variation */
if (al_oct_len > 0) {
proto_tree_add_item(object_tree, hf_dnp3_al_octet_string, tvb, data_pos, al_oct_len, ENC_NA);
data_pos += al_oct_len;
proto_item_set_len(point_item, data_pos - offset);
}
offset = data_pos;
break;
default: /* In case of unknown object */
proto_tree_add_item(object_tree, hf_dnp3_unknown_data_chunk, tvb, offset, -1, ENC_NA);
offset = tvb_captured_length(tvb); /* Finish decoding if unknown object is encountered... */
break;
}
/* And increment the point address, may be overwritten by an index value */
al_ptaddr++;
}
else {
/* No objects, just prefixes, move past prefix values */
offset = data_pos;
}
if (start_offset > offset) {
expert_add_info(pinfo, point_item, &ei_dnp_invalid_length);
offset = tvb_captured_length(tvb); /* Finish decoding if unknown object is encountered... */
}
}
}
proto_item_set_len(object_item, offset - orig_offset);
return offset;
}
/*****************************************************************/
/* Application Layer Dissector */
/*****************************************************************/
static int
dissect_dnp3_al(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
guint8 al_ctl, al_seq, al_func, al_class = 0, i;
guint16 bytes, obj_type = 0;
guint data_len = 0, offset = 0;
proto_item *ti, *tc;
proto_tree *al_tree, *robj_tree;
const gchar *func_code_str, *obj_type_str;
nstime_t al_cto;
static const int * control_flags[] = {
&hf_dnp3_al_fir,
&hf_dnp3_al_fin,
&hf_dnp3_al_con,
&hf_dnp3_al_uns,
&hf_dnp3_al_seq,
NULL
};
nstime_set_zero (&al_cto);
data_len = tvb_captured_length(tvb);
/* Handle the control byte and function code */
al_ctl = tvb_get_guint8(tvb, offset);
al_seq = al_ctl & DNP3_AL_SEQ;
al_func = tvb_get_guint8(tvb, (offset+1));
func_code_str = val_to_str_ext(al_func, &dnp3_al_func_vals_ext, "Unknown function (0x%02x)");
/* Clear out lower layer info */
col_clear(pinfo->cinfo, COL_INFO);
col_append_sep_fstr(pinfo->cinfo, COL_INFO, NULL, "%s", func_code_str);
col_set_fence(pinfo->cinfo, COL_INFO);
/* format up the text representation */
al_tree = proto_tree_add_subtree(tree, tvb, offset, data_len, ett_dnp3_al, &ti, "Application Layer: (");
if (al_ctl & DNP3_AL_FIR) proto_item_append_text(ti, "FIR, ");
if (al_ctl & DNP3_AL_FIN) proto_item_append_text(ti, "FIN, ");
if (al_ctl & DNP3_AL_CON) proto_item_append_text(ti, "CON, ");
if (al_ctl & DNP3_AL_UNS) proto_item_append_text(ti, "UNS, ");
proto_item_append_text(ti, "Sequence %u, %s)", al_seq, func_code_str);
/* Application Layer control byte subtree */
tc = proto_tree_add_bitmask(al_tree, tvb, offset, hf_dnp3_al_ctl, ett_dnp3_al_ctl, control_flags, ENC_BIG_ENDIAN);
proto_item_append_text(tc, "(");
if (al_ctl & DNP3_AL_FIR) proto_item_append_text(tc, "FIR, ");
if (al_ctl & DNP3_AL_FIN) proto_item_append_text(tc, "FIN, ");
if (al_ctl & DNP3_AL_CON) proto_item_append_text(tc, "CON, ");
if (al_ctl & DNP3_AL_UNS) proto_item_append_text(tc, "UNS, ");
proto_item_append_text(tc, "Sequence %u)", al_seq);
offset += 1;
#if 0
/* If this packet is NOT the final Application Layer Message, exit and continue
processing the remaining data in the fragment. */
if (!(al_ctl & DNP3_AL_FIN)) {
t_robj = proto_tree_add_expert(al_tree, pinfo, &ei_dnp3_buffering_user_data_until_final_frame_is_received, tvb, offset, -1);
return 1;
}
#endif
/* Application Layer Function Code Byte */
proto_tree_add_uint_format(al_tree, hf_dnp3_al_func, tvb, offset, 1, al_func,
"Function Code: %s (0x%02x)", func_code_str, al_func);
offset += 1;
switch (al_func)
{
case AL_FUNC_READ: /* Read Function Code 0x01 */
/* Create Read Request Data Objects Tree */
robj_tree = proto_tree_add_subtree(al_tree, tvb, offset, -1, ett_dnp3_al_objdet, NULL, "READ Request Data Objects");
/* Process Data Object Details */
while (offset <= (data_len-2)) { /* 2 octet object code + CRC32 */
offset = dnp3_al_process_object(tvb, pinfo, offset, robj_tree, TRUE, &obj_type, &al_cto);
/* Update class type for each object that was a class read */
switch(obj_type) {
case AL_OBJ_CLASS0:
case AL_OBJ_CLASS1:
case AL_OBJ_CLASS2:
case AL_OBJ_CLASS3:
al_class |= (1 << ((obj_type & 0x0f) - 1));
break;
default:
/* For reads for specific object types, bit-mask out the first byte and add the generic obj description to the column info */
obj_type_str = val_to_str_ext((obj_type & 0xFF00), &dnp3_al_read_obj_vals_ext, "Unknown Object Type");
col_append_sep_fstr(pinfo->cinfo, COL_INFO, NULL, "%s", obj_type_str);
break;
}
}
/* Update the col info if there were class reads */
if (al_class != 0) {
col_append_sep_fstr(pinfo->cinfo, COL_INFO, NULL, "Class ");
for (i = 0; i < 4; i++) {
if (al_class & (1 << i)) {
col_append_fstr(pinfo->cinfo, COL_INFO, "%u", i);
}
}
}
break;
case AL_FUNC_WRITE: /* Write Function Code 0x02 */
/* Create Write Request Data Objects Tree */
robj_tree = proto_tree_add_subtree(al_tree, tvb, offset, -1, ett_dnp3_al_objdet, NULL, "WRITE Request Data Objects");
/* Process Data Object Details */
while (offset <= (data_len-2)) { /* 2 octet object code + CRC32 */
offset = dnp3_al_process_object(tvb, pinfo, offset, robj_tree, FALSE, &obj_type, &al_cto);
/* For writes for specific object types, bit-mask out the first byte and add the generic obj description to the column info */
obj_type_str = val_to_str_ext((obj_type & 0xFF00), &dnp3_al_write_obj_vals_ext, "Unknown Object Type");
col_append_sep_fstr(pinfo->cinfo, COL_INFO, NULL, "%s", obj_type_str);
}
break;
case AL_FUNC_SELECT: /* Select Function Code 0x03 */
/* Create Select Request Data Objects Tree */
robj_tree = proto_tree_add_subtree(al_tree, tvb, offset, -1, ett_dnp3_al_objdet, NULL, "SELECT Request Data Objects");
/* Process Data Object Details */
while (offset <= (data_len-2)) { /* 2 octet object code + CRC32 */
offset = dnp3_al_process_object(tvb, pinfo, offset, robj_tree, FALSE, &obj_type, &al_cto);
}
break;
case AL_FUNC_OPERATE: /* Operate Function Code 0x04 */
/* Functionally identical to 'SELECT' Function Code */
/* Create Operate Request Data Objects Tree */
robj_tree = proto_tree_add_subtree(al_tree, tvb, offset, -1, ett_dnp3_al_objdet, NULL, "OPERATE Request Data Objects");
/* Process Data Object Details */
while (offset <= (data_len-2)) { /* 2 octet object code + CRC32 */
offset = dnp3_al_process_object(tvb, pinfo, offset, robj_tree, FALSE, &obj_type, &al_cto);
}
break;
case AL_FUNC_DIROP: /* Direct Operate Function Code 0x05 */
case AL_FUNC_DIROPNACK: /* Direct Operate No ACK Function Code 0x06 */
/* Functionally identical to 'SELECT' Function Code */
/* Create Direct Operate Request Data Objects Tree */
robj_tree = proto_tree_add_subtree(al_tree, tvb, offset, -1, ett_dnp3_al_objdet, NULL, "DIRECT OPERATE Request Data Objects");
/* Process Data Object Details */
while (offset <= (data_len-2)) { /* 2 octet object code + CRC32 */
offset = dnp3_al_process_object(tvb, pinfo, offset, robj_tree, FALSE, &obj_type, &al_cto);
}
break;
case AL_FUNC_FRZ: /* Immediate Freeze Function Code 0x07 */
case AL_FUNC_FRZNACK: /* Immediate Freeze No ACK Function Code 0x08 */
case AL_FUNC_FRZCLR: /* Freeze and Clear Function Code 0x09 */
case AL_FUNC_FRZCLRNACK: /* Freeze and Clear No ACK Function Code 0x0A */
/* Create Freeze Request Data Objects Tree */
robj_tree = proto_tree_add_subtree(al_tree, tvb, offset, -1, ett_dnp3_al_objdet, NULL, "Freeze Request Data Objects");
/* Process Data Object Details */
while (offset <= (data_len-2)) { /* 2 octet object code + CRC32 */
offset = dnp3_al_process_object(tvb, pinfo, offset, robj_tree, TRUE, &obj_type, &al_cto);
}
break;
case AL_FUNC_ENSPMSG: /* Enable Spontaneous Messages Function Code 0x14 */
/* Create Enable Spontaneous Messages Data Objects Tree */
robj_tree = proto_tree_add_subtree(al_tree, tvb, offset, -1, ett_dnp3_al_objdet, NULL, "Enable Spontaneous Msg's Data Objects");
/* Process Data Object Details */
while (offset <= (data_len-2)) { /* 2 octet object code + CRC32 */
offset = dnp3_al_process_object(tvb, pinfo, offset, robj_tree, FALSE, &obj_type, &al_cto);
}
break;
case AL_FUNC_DISSPMSG: /* Disable Spontaneous Messages Function Code 0x15 */
/* Create Disable Spontaneous Messages Data Objects Tree */
robj_tree = proto_tree_add_subtree(al_tree, tvb, offset, -1, ett_dnp3_al_objdet, NULL, "Disable Spontaneous Msg's Data Objects");
/* Process Data Object Details */
while (offset <= (data_len-2)) { /* 2 octet object code + CRC32 */
offset = dnp3_al_process_object(tvb, pinfo, offset, robj_tree, FALSE, &obj_type, &al_cto);
}
break;
case AL_FUNC_DELAYMST: /* Delay Measurement Function Code 0x17 */
break;
case AL_FUNC_OPENFILE: /* Open File Function Code 0x19 */
case AL_FUNC_CLOSEFILE: /* Close File Function Code 0x1A */
case AL_FUNC_DELETEFILE: /* Delete File Function Code 0x1B */
/* Create File Data Objects Tree */
robj_tree = proto_tree_add_subtree(al_tree, tvb, offset, -1, ett_dnp3_al_objdet, NULL, "File Data Objects");
/* Process Data Object Details */
while (offset <= (data_len-2)) { /* 2 octet object code + CRC32 */
offset = dnp3_al_process_object(tvb, pinfo, offset, robj_tree, FALSE, &obj_type, &al_cto);
}
break;
case AL_FUNC_RESPON: /* Response Function Code 0x81 */
case AL_FUNC_UNSOLI: /* Unsolicited Response Function Code 0x82 */
/* Application Layer IIN bits req'd if message is a response */
dnp3_al_process_iin(tvb, pinfo, offset, al_tree);
offset += 2;
/* Ensure there is actual data remaining in the message.
A response will not contain data following the IIN bits,
if there is none available */
bytes = tvb_reported_length_remaining(tvb, offset);
if (bytes > 0)
{
/* Create Response Data Objects Tree */
robj_tree = proto_tree_add_subtree(al_tree, tvb, offset, -1, ett_dnp3_al_objdet, NULL, "RESPONSE Data Objects");
/* Process Data Object Details */
while (offset <= (data_len-2)) { /* 2 octet object code + CRC32 */
offset = dnp3_al_process_object(tvb, pinfo, offset, robj_tree, FALSE, &obj_type, &al_cto);
}
break;
}
default: /* Unknown Function */
break;
}
return 0;
}
/*****************************************************************/
/* Data Link and Transport layer dissector */
/*****************************************************************/
static int
dissect_dnp3_message(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
proto_item *ti, *tdl, *tc, *hidden_item;
proto_tree *dnp3_tree, *dl_tree, *field_tree;
int offset = 0, temp_offset = 0;
gboolean dl_prm;
guint8 dl_len, dl_ctl, dl_func;
const gchar *func_code_str;
guint16 dl_dst, dl_src, dl_crc, calc_dl_crc;
/* Make entries in Protocol column and Info column on summary display */
col_set_str(pinfo->cinfo, COL_PROTOCOL, "DNP 3.0");
col_clear(pinfo->cinfo, COL_INFO);
/* Skip "0x0564" header bytes */
temp_offset += 2;
dl_len = tvb_get_guint8(tvb, temp_offset);
temp_offset += 1;
dl_ctl = tvb_get_guint8(tvb, temp_offset);
temp_offset += 1;
dl_dst = tvb_get_letohs(tvb, temp_offset);
temp_offset += 2;
dl_src = tvb_get_letohs(tvb, temp_offset);
dl_func = dl_ctl & DNP3_CTL_FUNC;
dl_prm = dl_ctl & DNP3_CTL_PRM;
func_code_str = val_to_str(dl_func, dl_prm ? dnp3_ctl_func_pri_vals : dnp3_ctl_func_sec_vals,
"Unknown function (0x%02x)");
/* Make sure source and dest are always in the info column */
col_append_fstr(pinfo->cinfo, COL_INFO, "from %u to %u", dl_src, dl_dst);
col_append_sep_fstr(pinfo->cinfo, COL_INFO, NULL, "len=%u, %s", dl_len, func_code_str);
/* create display subtree for the protocol */
ti = proto_tree_add_item(tree, proto_dnp3, tvb, offset, -1, ENC_NA);
dnp3_tree = proto_item_add_subtree(ti, ett_dnp3);
/* Create Subtree for Data Link Layer */
dl_tree = proto_tree_add_subtree_format(dnp3_tree, tvb, offset, DNP_HDR_LEN, ett_dnp3_dl, &tdl,
"Data Link Layer, Len: %u, From: %u, To: %u, ", dl_len, dl_src, dl_dst);
if (dl_prm) {
if (dl_ctl & DNP3_CTL_DIR) proto_item_append_text(tdl, "DIR, ");
if (dl_ctl & DNP3_CTL_PRM) proto_item_append_text(tdl, "PRM, ");
if (dl_ctl & DNP3_CTL_FCB) proto_item_append_text(tdl, "FCB, ");
if (dl_ctl & DNP3_CTL_FCV) proto_item_append_text(tdl, "FCV, ");
}
else {
if (dl_ctl & DNP3_CTL_DIR) proto_item_append_text(tdl, "DIR, ");
if (dl_ctl & DNP3_CTL_PRM) proto_item_append_text(tdl, "PRM, ");
if (dl_ctl & DNP3_CTL_RES) proto_item_append_text(tdl, "RES, ");
if (dl_ctl & DNP3_CTL_DFC) proto_item_append_text(tdl, "DFC, ");
}
proto_item_append_text(tdl, "%s", func_code_str);
/* start bytes */
proto_tree_add_item(dl_tree, hf_dnp3_start, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
/* add length field */
proto_tree_add_item(dl_tree, hf_dnp3_len, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/* Add Control Byte Subtree */
tc = proto_tree_add_uint_format_value(dl_tree, hf_dnp3_ctl, tvb, offset, 1, dl_ctl,
"0x%02x (", dl_ctl);
/* Add Text to Control Byte Subtree Header */
if (dl_prm) {
if (dl_ctl & DNP3_CTL_DIR) proto_item_append_text(tc, "DIR, ");
if (dl_ctl & DNP3_CTL_PRM) proto_item_append_text(tc, "PRM, ");
if (dl_ctl & DNP3_CTL_FCB) proto_item_append_text(tc, "FCB, ");
if (dl_ctl & DNP3_CTL_FCV) proto_item_append_text(tc, "FCV, ");
}
else {
if (dl_ctl & DNP3_CTL_DIR) proto_item_append_text(tc, "DIR, ");
if (dl_ctl & DNP3_CTL_PRM) proto_item_append_text(tc, "PRM, ");
if (dl_ctl & DNP3_CTL_RES) proto_item_append_text(tc, "RES, ");
if (dl_ctl & DNP3_CTL_DFC) proto_item_append_text(tc, "DFC, ");
}
proto_item_append_text(tc, "%s)", func_code_str );
field_tree = proto_item_add_subtree(tc, ett_dnp3_dl_ctl);
/* Add Control Byte Subtree Items */
if (dl_prm) {
proto_tree_add_item(field_tree, hf_dnp3_ctl_dir, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(field_tree, hf_dnp3_ctl_prm, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(field_tree, hf_dnp3_ctl_fcb, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(field_tree, hf_dnp3_ctl_fcv, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(field_tree, hf_dnp3_ctl_prifunc, tvb, offset, 1, ENC_BIG_ENDIAN);
}
else {
proto_tree_add_item(field_tree, hf_dnp3_ctl_dir, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(field_tree, hf_dnp3_ctl_prm, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(field_tree, hf_dnp3_ctl_dfc, tvb, offset, 1, ENC_LITTLE_ENDIAN);
proto_tree_add_item(field_tree, hf_dnp3_ctl_secfunc, tvb, offset, 1, ENC_BIG_ENDIAN);
}
offset += 1;
/* add destination and source addresses */
proto_tree_add_item(dl_tree, hf_dnp3_dst, tvb, offset, 2, ENC_LITTLE_ENDIAN);
hidden_item = proto_tree_add_item(dl_tree, hf_dnp3_addr, tvb, offset, 2, ENC_LITTLE_ENDIAN);
PROTO_ITEM_SET_HIDDEN(hidden_item);
offset += 2;
proto_tree_add_item(dl_tree, hf_dnp3_src, tvb, offset, 2, ENC_LITTLE_ENDIAN);
hidden_item = proto_tree_add_item(dl_tree, hf_dnp3_addr, tvb, offset, 2, ENC_LITTLE_ENDIAN);
PROTO_ITEM_SET_HIDDEN(hidden_item);
offset += 2;
/* and header CRC */
dl_crc = tvb_get_letohs(tvb, offset);
calc_dl_crc = calculateCRCtvb(tvb, 0, DNP_HDR_LEN - 2);
if (dl_crc == calc_dl_crc)
proto_tree_add_uint_format_value(dl_tree, hf_dnp_hdr_CRC, tvb, offset, 2,
dl_crc, "0x%04x [correct]", dl_crc);
else
{
hidden_item = proto_tree_add_boolean(dl_tree, hf_dnp_hdr_CRC_bad, tvb,
offset, 2, TRUE);
PROTO_ITEM_SET_HIDDEN(hidden_item);
proto_tree_add_uint_format_value(dl_tree, hf_dnp_hdr_CRC, tvb, offset, 2,
dl_crc, "0x%04x [incorrect, should be 0x%04x]",
dl_crc, calc_dl_crc);
}
offset += 2;
/* If the DataLink function is 'Request Link Status' or 'Status of Link',
or 'Reset Link' we don't expect any Transport or Application Layer Data
NOTE: This code should probably check what DOES have TR or AL data */
if ((dl_func != DL_FUNC_LINK_STAT) && (dl_func != DL_FUNC_STAT_LINK) &&
(dl_func != DL_FUNC_RESET_LINK) && (dl_func != DL_FUNC_ACK))
{
proto_tree *al_tree;
guint8 tr_ctl, tr_seq;
gboolean tr_fir, tr_fin;
guint8 *tmp, *tmp_ptr;
guint8 data_len;
int data_offset;
gboolean crc_OK = FALSE;
tvbuff_t *next_tvb;
guint i;
static const int * transport_flags[] = {
&hf_dnp3_tr_fin,
&hf_dnp3_tr_fir,
&hf_dnp3_tr_seq,
NULL
};
/* get the transport layer byte */
tr_ctl = tvb_get_guint8(tvb, offset);
tr_seq = tr_ctl & DNP3_TR_SEQ;
tr_fir = tr_ctl & DNP3_TR_FIR;
tr_fin = tr_ctl & DNP3_TR_FIN;
/* Add Transport Layer Tree */
tc = proto_tree_add_bitmask(dnp3_tree, tvb, offset, hf_dnp3_tr_ctl, ett_dnp3_tr_ctl, transport_flags, ENC_BIG_ENDIAN);
proto_item_append_text(tc, "(");
if (tr_fir) proto_item_append_text(tc, "FIR, ");
if (tr_fin) proto_item_append_text(tc, "FIN, ");
proto_item_append_text(tc, "Sequence %u)", tr_seq);
/* Allocate AL chunk tree */
al_tree = proto_tree_add_subtree(dnp3_tree, tvb, offset + 1, -1, ett_dnp3_al_data, NULL, "Application data chunks");
/* extract the application layer data, validating the CRCs */
/* XXX - check for dl_len <= 5 */
data_len = dl_len - 5;
tmp = (guint8 *)wmem_alloc(pinfo->pool, data_len);
tmp_ptr = tmp;
i = 0;
data_offset = 1; /* skip the transport layer byte when assembling chunks */
while (data_len > 0)
{
guint8 chk_size;
const guint8 *chk_ptr;
guint16 calc_crc, act_crc;
chk_size = MIN(data_len, AL_MAX_CHUNK_SIZE);
chk_ptr = tvb_get_ptr(tvb, offset, chk_size);
memcpy(tmp_ptr, chk_ptr + data_offset, chk_size - data_offset);
calc_crc = calculateCRC(chk_ptr, chk_size);
offset += chk_size;
tmp_ptr += chk_size - data_offset;
act_crc = tvb_get_letohs(tvb, offset);
offset += 2;
crc_OK = calc_crc == act_crc;
if (crc_OK)
{
proto_tree_add_bytes_format(al_tree, hf_dnp3_application_chunk, tvb, offset - (chk_size + 2), chk_size + 2,
NULL, "Application Chunk %u Len: %u CRC 0x%04x",
i, chk_size, act_crc);
data_len -= chk_size;
}
else
{
proto_tree_add_bytes_format(al_tree, hf_dnp3_application_chunk, tvb, offset - (chk_size + 2), chk_size + 2,
NULL, "Application Chunk %u Len: %u Bad CRC got 0x%04x expected 0x%04x",
i, chk_size, act_crc, calc_crc);
break;
}
i++;
data_offset = 0; /* copy all of the rest of the chunks */
}
/* if all crc OK, set up new tvb */
if (crc_OK)
{
tvbuff_t *al_tvb;
gboolean save_fragmented;
al_tvb = tvb_new_child_real_data(tvb, tmp, (guint) (tmp_ptr-tmp), (gint) (tmp_ptr-tmp));
/* Check for fragmented packet */
save_fragmented = pinfo->fragmented;
if (! (tr_fir && tr_fin))
{
guint conv_seq_number;
fragment_head *frag_msg;
conversation_t *conversation;
dnp3_conv_t *conv_data_ptr;
dl_conversation_key_t dl_conversation_key;
/* A fragmented packet */
pinfo->fragmented = TRUE;
/* Look up the conversation to get the fragment reassembly id */
conversation = find_or_create_conversation(pinfo);
/*
* The TCP/UDP conversation is not sufficient to identify a conversation
* on a multi-drop DNP network. Lookup conversation data based on TCP/UDP
* conversation and the DNP src and dst addresses
*/
dl_conversation_key.conversation = conversation->conv_index;
dl_conversation_key.src = dl_src;
dl_conversation_key.dst = dl_dst;
conv_data_ptr = (dnp3_conv_t*)g_hash_table_lookup(dl_conversation_table, &dl_conversation_key);
if (!pinfo->fd->flags.visited && conv_data_ptr == NULL)
{
dl_conversation_key_t* new_dl_conversation_key = NULL;
new_dl_conversation_key = wmem_new(wmem_file_scope(), dl_conversation_key_t);
*new_dl_conversation_key = dl_conversation_key;
conv_data_ptr = wmem_new(wmem_file_scope(), dnp3_conv_t);
/*** Increment static global fragment reassembly id ***/
conv_data_ptr->conv_seq_number = seq_number++;
g_hash_table_insert(dl_conversation_table, new_dl_conversation_key, conv_data_ptr);
}
conv_seq_number = conv_data_ptr->conv_seq_number;
/*
* Add the frame to
* whatever reassembly is in progress, if any, and see
* if it's done.
*/
frag_msg = fragment_add_seq_next(&al_reassembly_table,
al_tvb, 0, pinfo, conv_seq_number, NULL,
tvb_reported_length(al_tvb), /* As this is a constructed tvb, all of it is ok */
!tr_fin);
next_tvb = process_reassembled_data(al_tvb, 0, pinfo,
"Reassembled DNP 3.0 Application Layer message", frag_msg, &dnp3_frag_items,
NULL, dnp3_tree);
if (next_tvb) /* Reassembled */
{
/* We have the complete payload, zap the info column as the AL info takes precedence */
col_clear(pinfo->cinfo, COL_INFO);
}
else
{
/* We don't have the complete reassembled payload. */
col_append_sep_fstr(pinfo->cinfo, COL_INFO, NULL, "TL fragment %u ", tr_seq);
}
}
else
{
/* No reassembly required */
next_tvb = al_tvb;
add_new_data_source(pinfo, next_tvb, "DNP 3.0 Application Layer message");
col_clear(pinfo->cinfo, COL_INFO);
}
pinfo->fragmented = save_fragmented;
}
else
{
/* CRC error - throw away the data. */
next_tvb = NULL;
proto_tree_add_expert_format(dnp3_tree, pinfo, &ei_dnp3_crc_failed, tvb, 11, -1, "CRC failed, %u chunks", i);
}
/* Dissect any completed Application Layer message */
if (next_tvb && tr_fin)
{
/* As a complete AL message will have cleared the info column,
make sure source and dest are always in the info column */
col_append_fstr(pinfo->cinfo, COL_INFO, "from %u to %u", dl_src, dl_dst);
col_set_fence(pinfo->cinfo, COL_INFO);
dissect_dnp3_al(next_tvb, pinfo, dnp3_tree);
}
else
{
/* Lock any column info set by the DL and TL */
col_set_fence(pinfo->cinfo, COL_INFO);
}
}
/* Set the length of the message */
proto_item_set_len(ti, offset);
return offset;
}
static gboolean
check_dnp3_header(tvbuff_t *tvb, gboolean dnp3_heuristics)
{
/* Assume the CRC will be bad */
gboolean goodCRC = FALSE;
/* How big is the actual buffer */
gint length = tvb_captured_length(tvb);
/* Calculate the header CRC if the bytes are available */
if (length >= DNP_HDR_LEN) {
guint16 calc_crc = calculateCRCtvb(tvb, 0, DNP_HDR_LEN - 2);
goodCRC = (calc_crc == tvb_get_letohs(tvb, 8));
}
/* For a heuristic match we must have at least a header, beginning with 0x0564
and a valid header CRC */
if (dnp3_heuristics) {
if ( !goodCRC || (tvb_get_ntohs(tvb, 0) != 0x0564)) {
return FALSE;
}
}
else {
/* For a non-heuristic match, at least the first byte is 0x05 and if available
the second byte is 64 and if available the CRC is valid */
if (tvb_get_guint8(tvb, 0) != 0x05) {
return FALSE;
}
if ((length > 1) && (tvb_get_guint8(tvb, 1) != 0x64)) {
return FALSE;
}
if ((length >= DNP_HDR_LEN) && !goodCRC) {
return FALSE;
}
}
return TRUE;
}
static guint
get_dnp3_message_len(packet_info *pinfo _U_, tvbuff_t *tvb,
int offset, void *data _U_)
{
guint16 message_len; /* need 16 bits as total can exceed 255 */
guint16 data_crc; /* No. of user data CRC bytes */
message_len = tvb_get_guint8(tvb, offset + 2);
/* Add in 2 bytes for header start octets,
1 byte for len itself,
2 bytes for header CRC
data CRC bytes (2 bytes per 16 bytes of data
*/
data_crc = (guint16)(ceil((message_len - 5) / 16.0)) * 2;
message_len += 2 + 1 + 2 + data_crc;
return message_len;
}
static int
dissect_dnp3_tcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
{
if (!check_dnp3_header(tvb, FALSE)) {
return 0;
}
tcp_dissect_pdus(tvb, pinfo, tree, TRUE, DNP_HDR_LEN,
get_dnp3_message_len, dissect_dnp3_message, data);
return tvb_captured_length(tvb);
}
static gboolean
dissect_dnp3_tcp_heur(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
{
if (!check_dnp3_header(tvb, TRUE)) {
return FALSE;
}
tcp_dissect_pdus(tvb, pinfo, tree, TRUE, DNP_HDR_LEN,
get_dnp3_message_len, dissect_dnp3_message, data);
return TRUE;
}
static gboolean
dnp3_udp_check_header(packet_info *pinfo _U_, tvbuff_t *tvb, int offset _U_, void *data _U_)
{
return check_dnp3_header(tvb, FALSE);
}
static gboolean
dnp3_udp_check_header_heur(packet_info *pinfo _U_, tvbuff_t *tvb, int offset _U_, void *data _U_)
{
return check_dnp3_header(tvb, TRUE);
}
static int
dissect_dnp3_udp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
{
return udp_dissect_pdus(tvb, pinfo, tree, DNP_HDR_LEN, dnp3_udp_check_header,
get_dnp3_message_len, dissect_dnp3_message, data);
}
static gboolean
dissect_dnp3_udp_heur(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
{
return (udp_dissect_pdus(tvb, pinfo, tree, DNP_HDR_LEN, dnp3_udp_check_header_heur,
get_dnp3_message_len, dissect_dnp3_message, data) != 0);
}
static void
dnp3_init(void)
{
dl_conversation_table = g_hash_table_new(dl_conversation_hash, dl_conversation_equal);
reassembly_table_init(&al_reassembly_table,
&addresses_reassembly_table_functions);
}
static void
dnp3_cleanup(void)
{
reassembly_table_destroy(&al_reassembly_table);
g_hash_table_destroy(dl_conversation_table);
}
/* Register the protocol with Wireshark */
void
proto_register_dnp3(void)
{
/* Setup list of header fields */
static hf_register_info hf[] = {
{ &hf_dnp3_start,
{ "Start Bytes", "dnp3.start",
FT_UINT16, BASE_HEX, NULL, 0x0,
NULL, HFILL }
},
{ &hf_dnp3_len,
{ "Length", "dnp3.len",
FT_UINT8, BASE_DEC, NULL, 0x0,
"Frame Data Length", HFILL }
},
{ &hf_dnp3_ctl,
{ "Control", "dnp3.ctl",
FT_UINT8, BASE_HEX, NULL, 0x0,
"Frame Control Byte", HFILL }
},
{ &hf_dnp3_ctl_prifunc,
{ "Control Function Code", "dnp3.ctl.prifunc",
FT_UINT8, BASE_DEC, VALS(dnp3_ctl_func_pri_vals), DNP3_CTL_FUNC,
"Frame Control Function Code", HFILL }
},
{ &hf_dnp3_ctl_secfunc,
{ "Control Function Code", "dnp3.ctl.secfunc",
FT_UINT8, BASE_DEC, VALS(dnp3_ctl_func_sec_vals), DNP3_CTL_FUNC,
"Frame Control Function Code", HFILL }
},
{ &hf_dnp3_ctlobj_code_c,
{ "Operation Type", "dnp3.ctl.op",
FT_UINT8, BASE_DEC, VALS(dnp3_al_ctlc_code_vals), AL_OBJCTLC_CODE,
"Control Code, Operation Type", HFILL }
},
{ &hf_dnp3_ctlobj_code_m,
{ "Queue / Clear Field", "dnp3.ctl.clr",
FT_UINT8, BASE_DEC, VALS(dnp3_al_ctlc_misc_vals), AL_OBJCTLC_MISC,
"Control Code, Clear Field", HFILL }
},
{ &hf_dnp3_ctlobj_code_tc,
{ "Trip Control Code", "dnp3.ctl.trip",
FT_UINT8, BASE_DEC, VALS(dnp3_al_ctlc_tc_vals), AL_OBJCTLC_TC,
"Control Code, Trip Close Control", HFILL }
},
{ &hf_dnp3_ctl_dir,
{ "Direction", "dnp3.ctl.dir",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_CTL_DIR,
NULL, HFILL }
},
{ &hf_dnp3_ctl_prm,
{ "Primary", "dnp3.ctl.prm",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_CTL_PRM,
NULL, HFILL }
},
{ &hf_dnp3_ctl_fcb,
{ "Frame Count Bit", "dnp3.ctl.fcb",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_CTL_FCB,
NULL, HFILL }
},
{ &hf_dnp3_ctl_fcv,
{ "Frame Count Valid", "dnp3.ctl.fcv",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_CTL_FCV,
NULL, HFILL }
},
{ &hf_dnp3_ctl_dfc,
{ "Data Flow Control", "dnp3.ctl.dfc",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_CTL_DFC,
NULL, HFILL }
},
{ &hf_dnp3_dst,
{ "Destination", "dnp3.dst",
FT_UINT16, BASE_DEC, NULL, 0x0,
"Destination Address", HFILL }
},
{ &hf_dnp3_src,
{ "Source", "dnp3.src",
FT_UINT16, BASE_DEC, NULL, 0x0,
"Source Address", HFILL }
},
{ &hf_dnp3_addr,
{ "Address", "dnp3.addr",
FT_UINT16, BASE_DEC, NULL, 0x0,
"Source or Destination Address", HFILL }
},
{ &hf_dnp_hdr_CRC,
{ "CRC", "dnp3.hdr.CRC",
FT_UINT16, BASE_HEX, NULL, 0x0,
NULL, HFILL }
},
{ &hf_dnp_hdr_CRC_bad,
{ "Bad CRC", "dnp3.hdr.CRC_bad",
FT_BOOLEAN, BASE_NONE, NULL, 0x0,
NULL, HFILL }
},
{ &hf_dnp3_tr_ctl,
{ "Transport Control", "dnp3.tr.ctl",
FT_UINT8, BASE_HEX, NULL, 0x0,
"Transport Layer Control Byte", HFILL }
},
{ &hf_dnp3_tr_fin,
{ "Final", "dnp3.tr.fin",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_TR_FIN,
NULL, HFILL }
},
{ &hf_dnp3_tr_fir,
{ "First", "dnp3.tr.fir",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_TR_FIR,
NULL, HFILL }
},
{ &hf_dnp3_tr_seq,
{ "Sequence", "dnp3.tr.seq",
FT_UINT8, BASE_DEC, NULL, DNP3_TR_SEQ,
"Frame Sequence Number", HFILL }
},
{ &hf_dnp3_al_ctl,
{ "Application Control", "dnp3.al.ctl",
FT_UINT8, BASE_HEX, NULL, 0x0,
"Application Layer Control Byte", HFILL }
},
{ &hf_dnp3_al_fir,
{ "First", "dnp3.al.fir",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_AL_FIR,
NULL, HFILL }
},
{ &hf_dnp3_al_fin,
{ "Final", "dnp3.al.fin",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_AL_FIN,
NULL, HFILL }
},
{ &hf_dnp3_al_con,
{ "Confirm", "dnp3.al.con",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_AL_CON,
NULL, HFILL }
},
{ &hf_dnp3_al_uns,
{ "Unsolicited", "dnp3.al.uns",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_AL_UNS,
NULL, HFILL }
},
{ &hf_dnp3_al_seq,
{ "Sequence", "dnp3.al.seq",
FT_UINT8, BASE_DEC, NULL, DNP3_AL_SEQ,
"Frame Sequence Number", HFILL }
},
{ &hf_dnp3_al_func,
{ "Application Layer Function Code", "dnp3.al.func",
FT_UINT8, BASE_DEC|BASE_EXT_STRING, &dnp3_al_func_vals_ext, DNP3_AL_FUNC,
"Application Function Code", HFILL }
},
{ &hf_dnp3_al_iin,
{ "Application Layer IIN bits", "dnp3.al.iin",
FT_UINT16, BASE_DEC, NULL, 0x0,
"Application Layer IIN", HFILL }
},
{ &hf_dnp3_al_iin_bmsg,
{ "Broadcast Msg Rx", "dnp3.al.iin.bmsg",
FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_BMSG,
NULL, HFILL }
},
{ &hf_dnp3_al_iin_cls1d,
{ "Class 1 Data Available", "dnp3.al.iin.cls1d",
FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_CLS1D,
NULL, HFILL }
},
{ &hf_dnp3_al_iin_cls2d,
{ "Class 2 Data Available", "dnp3.al.iin.cls2d",
FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_CLS2D,
NULL, HFILL }
},
{ &hf_dnp3_al_iin_cls3d,
{ "Class 3 Data Available", "dnp3.al.iin.cls3d",
FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_CLS3D,
NULL, HFILL }
},
{ &hf_dnp3_al_iin_tsr,
{ "Time Sync Required", "dnp3.al.iin.tsr",
FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_TSR,
NULL, HFILL }
},
{ &hf_dnp3_al_iin_dol,
{ "Digital Outputs in Local", "dnp3.al.iin.dol",
FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_DOL,
NULL, HFILL }
},
{ &hf_dnp3_al_iin_dt,
{ "Device Trouble", "dnp3.al.iin.dt",
FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_DT,
NULL, HFILL }
},
{ &hf_dnp3_al_iin_rst,
{ "Device Restart", "dnp3.al.iin.rst",
FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_RST,
NULL, HFILL }
},
{ &hf_dnp3_al_iin_fcni,
{ "Function Code not implemented", "dnp3.al.iin.fcni",
FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_FCNI,
NULL, HFILL }
},
{ &hf_dnp3_al_iin_obju,
{ "Requested Objects Unknown", "dnp3.al.iin.obju",
FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_OBJU,
NULL, HFILL }
},
{ &hf_dnp3_al_iin_pioor,
{ "Parameters Invalid or Out of Range", "dnp3.al.iin.pioor",
FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_PIOOR,
NULL, HFILL }
},
{ &hf_dnp3_al_iin_ebo,
{ "Event Buffer Overflow", "dnp3.al.iin.ebo",
FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_EBO,
NULL, HFILL }
},
{ &hf_dnp3_al_iin_oae,
{ "Operation Already Executing", "dnp3.al.iin.oae",
FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_OAE,
NULL, HFILL }
},
{ &hf_dnp3_al_iin_cc,
{ "Configuration Corrupt", "dnp3.al.iin.cc",
FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_CC,
NULL, HFILL }
},
{ &hf_dnp3_al_obj,
{ "Object", "dnp3.al.obj",
FT_UINT16, BASE_HEX|BASE_EXT_STRING, &dnp3_al_obj_vals_ext, 0x0,
"Application Layer Object", HFILL }
},
{ &hf_dnp3_al_objq_prefix,
{ "Prefix Code", "dnp3.al.objq.prefix",
FT_UINT8, BASE_DEC|BASE_EXT_STRING, &dnp3_al_objq_prefix_vals_ext, AL_OBJQ_PREFIX,
"Object Prefix Code", HFILL }
},
{ &hf_dnp3_al_objq_range,
{ "Range Code", "dnp3.al.objq.range",
FT_UINT8, BASE_DEC|BASE_EXT_STRING, &dnp3_al_objq_range_vals_ext, AL_OBJQ_RANGE,
"Object Range Specifier Code", HFILL }
},
{ &hf_dnp3_al_range_start8,
{ "Start (8 bit)", "dnp3.al.range.start",
FT_UINT8, BASE_DEC, NULL, 0x0,
"Object Start Index", HFILL }
},
{ &hf_dnp3_al_range_stop8,
{ "Stop (8 bit)", "dnp3.al.range.stop",
FT_UINT8, BASE_DEC, NULL, 0x0,
"Object Stop Index", HFILL }
},
{ &hf_dnp3_al_range_start16,
{ "Start (16 bit)", "dnp3.al.range.start",
FT_UINT16, BASE_DEC, NULL, 0x0,
"Object Start Index", HFILL }
},
{ &hf_dnp3_al_range_stop16,
{ "Stop (16 bit)", "dnp3.al.range.stop",
FT_UINT16, BASE_DEC, NULL, 0x0,
"Object Stop Index", HFILL }
},
{ &hf_dnp3_al_range_start32,
{ "Start (32 bit)", "dnp3.al.range.start",
FT_UINT32, BASE_DEC, NULL, 0x0,
"Object Start Index", HFILL }
},
{ &hf_dnp3_al_range_stop32,
{ "Stop (32 bit)", "dnp3.al.range.stop",
FT_UINT32, BASE_DEC, NULL, 0x0,
"Object Stop Index", HFILL }
},
{ &hf_dnp3_al_range_abs8,
{ "Address (8 bit)", "dnp3.al.range.abs",
FT_UINT8, BASE_DEC, NULL, 0x0,
"Object Absolute Address", HFILL }
},
{ &hf_dnp3_al_range_abs16,
{ "Address (16 bit)", "dnp3.al.range.abs",
FT_UINT16, BASE_DEC, NULL, 0x0,
"Object Absolute Address", HFILL }
},
{ &hf_dnp3_al_range_abs32,
{ "Address (32 bit)", "dnp3.al.range.abs",
FT_UINT32, BASE_DEC, NULL, 0x0,
"Object Absolute Address", HFILL }
},
{ &hf_dnp3_al_range_quant8,
{ "Quantity (8 bit)", "dnp3.al.range.quantity",
FT_UINT8, BASE_DEC, NULL, 0x0,
"Object Quantity", HFILL }
},
{ &hf_dnp3_al_range_quant16,
{ "Quantity (16 bit)", "dnp3.al.range.quantity",
FT_UINT16, BASE_DEC, NULL, 0x0,
"Object Quantity", HFILL }
},
{ &hf_dnp3_al_range_quant32,
{ "Quantity (32 bit)", "dnp3.al.range.quantity",
FT_UINT32, BASE_DEC, NULL, 0x0,
"Object Quantity", HFILL }
},
{ &hf_dnp3_al_index8,
{ "Index (8 bit)", "dnp3.al.index",
FT_UINT8, BASE_DEC, NULL, 0x0,
"Object Index", HFILL }
},
{ &hf_dnp3_al_index16,
{ "Index (16 bit)", "dnp3.al.index",
FT_UINT16, BASE_DEC, NULL, 0x0,
"Object Index", HFILL }
},
{ &hf_dnp3_al_index32,
{ "Index (32 bit)", "dnp3.al.index",
FT_UINT32, BASE_DEC, NULL, 0x0,
"Object Index", HFILL }
},
#if 0
{ &hf_dnp3_al_ptnum,
{ "Object Point Number", "dnp3.al.ptnum",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
#endif
{ &hf_dnp3_al_size8,
{ "Size (8 bit)", "dnp3.al.size",
FT_UINT8, BASE_DEC, NULL, 0x0,
"Object Size", HFILL }
},
{ &hf_dnp3_al_size16,
{ "Size (16 bit)", "dnp3.al.size",
FT_UINT16, BASE_DEC, NULL, 0x0,
"Object Size", HFILL }
},
{ &hf_dnp3_al_size32,
{ "Size (32 bit)", "dnp3.al.size",
FT_UINT32, BASE_DEC, NULL, 0x0,
"Object Size", HFILL }
},
{ &hf_dnp3_bocs_bit,
{ "Commanded State", "dnp3.al.bocs",
FT_BOOLEAN, 8, TFS(&tfs_on_off), 0x80,
"Binary Output Commanded state", HFILL }
},
{ &hf_dnp3_al_bit,
{ "Value (bit)", "dnp3.al.bit",
FT_BOOLEAN, 8, TFS(&tfs_on_off), 0x1,
"Digital Value (1 bit)", HFILL }
},
{ &hf_dnp3_al_2bit,
{ "Value (two bit)", "dnp3.al.2bit",
FT_UINT8, BASE_DEC, NULL, 0x0,
"Digital Value (2 bit)", HFILL }
},
{ &hf_dnp3_al_ana16,
{ "Value (16 bit)", "dnp3.al.ana.int",
FT_INT16, BASE_DEC, NULL, 0x0,
"Analog Value (16 bit)", HFILL }
},
{ &hf_dnp3_al_ana32,
{ "Value (32 bit)", "dnp3.al.ana.int",
FT_INT32, BASE_DEC, NULL, 0x0,
"Analog Value (32 bit)", HFILL }
},
{ &hf_dnp3_al_anaflt,
{ "Value (float)", "dnp3.al.ana.float",
FT_FLOAT, BASE_NONE, NULL, 0x0,
"Analog Value (float)", HFILL }
},
{ &hf_dnp3_al_anadbl,
{ "Value (double)", "dnp3.al.ana.double",
FT_DOUBLE, BASE_NONE, NULL, 0x0,
"Analog Value (double)", HFILL }
},
{ &hf_dnp3_al_anaout16,
{ "Output Value (16 bit)", "dnp3.al.anaout.int",
FT_INT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_dnp3_al_anaout32,
{ "Output Value (32 bit)", "dnp3.al.anaout.int",
FT_INT32, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_dnp3_al_anaoutflt,
{ "Output Value (float)", "dnp3.al.anaout.float",
FT_FLOAT, BASE_NONE, NULL, 0x0,
NULL, HFILL }
},
{ &hf_dnp3_al_anaoutdbl,
{ "Output (double)", "dnp3.al.anaout.double",
FT_DOUBLE, BASE_NONE, NULL, 0x0,
"Output Value (double)", HFILL }
},
{ &hf_dnp3_al_cnt16,
{ "Counter (16 bit)", "dnp3.al.cnt",
FT_UINT16, BASE_DEC, NULL, 0x0,
"Counter Value (16 bit)", HFILL }
},
{ &hf_dnp3_al_cnt32,
{ "Counter (32 bit)", "dnp3.al.cnt",
FT_UINT32, BASE_DEC, NULL, 0x0,
"Counter Value (32 bit)", HFILL }
},
{ &hf_dnp3_al_ctrlstatus,
{ "Control Status", "dnp3.al.ctrlstatus",
FT_UINT8, BASE_DEC|BASE_EXT_STRING, &dnp3_al_ctl_status_vals_ext, AL_OBJCTL_STATUS_MASK,
NULL, HFILL }
},
{ &hf_dnp3_al_file_mode,
{ "File Control Mode", "dnp3.al.file.mode",
FT_UINT16, BASE_DEC, VALS(dnp3_al_file_mode_vals), 0x0,
NULL, HFILL }
},
{ &hf_dnp3_al_file_auth,
{ "File Authentication Key", "dnp3.al.file.auth",
FT_UINT32, BASE_HEX, NULL, 0x0,
NULL, HFILL }
},
{ &hf_dnp3_al_file_size,
{ "File Size", "dnp3.al.file.size",
FT_UINT32, BASE_HEX, NULL, 0x0,
NULL, HFILL }
},
{ &hf_dnp3_al_file_maxblk,
{ "File Max Block Size", "dnp3.al.file.maxblock",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_dnp3_al_file_reqID,
{ "File Request Identifier", "dnp3.al.file.reqID",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_dnp3_al_file_status,
{ "File Control Status", "dnp3.al.file.status",
FT_UINT8, BASE_DEC|BASE_EXT_STRING, &dnp3_al_file_status_vals_ext, 0x0,
NULL, HFILL }
},
{ &hf_dnp3_al_file_handle,
{ "File Handle", "dnp3.al.file.handle",
FT_UINT32, BASE_HEX, NULL, 0x0,
NULL, HFILL }
},
{ &hf_dnp3_al_file_blocknum,
{ "File Block Number", "dnp3.al.file.blocknum",
FT_UINT32, BASE_HEX, NULL, 0x7fffffff,
NULL, HFILL }
},
{ &hf_dnp3_al_file_lastblock,
{ "File Last Block", "dnp3.al.file.lastblock",
FT_BOOLEAN, 32, TFS(&tfs_set_notset), 0x80000000,
NULL, HFILL }
},
{ &hf_dnp3_al_file_data,
{ "File Data", "dnp3.al.file.data",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL }
},
{ &hf_dnp3_al_biq_b0,
{ "Online", "dnp3.al.biq.b0",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BI_FLAG0,
NULL, HFILL }
},
{ &hf_dnp3_al_biq_b1,
{ "Restart", "dnp3.al.biq.b1",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BI_FLAG1,
NULL, HFILL }
},
{ &hf_dnp3_al_biq_b2,
{ "Comm Fail", "dnp3.al.biq.b2",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BI_FLAG2,
NULL, HFILL }
},
{ &hf_dnp3_al_biq_b3,
{ "Remote Force", "dnp3.al.biq.b3",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BI_FLAG3,
NULL, HFILL }
},
{ &hf_dnp3_al_biq_b4,
{ "Local Force", "dnp3.al.biq.b4",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BI_FLAG4,
NULL, HFILL }
},
{ &hf_dnp3_al_biq_b5,
{ "Chatter Filter", "dnp3.al.biq.b5",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BI_FLAG5,
NULL, HFILL }
},
{ &hf_dnp3_al_biq_b6,
{ "Reserved", "dnp3.al.biq.b6",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BI_FLAG6,
NULL, HFILL }
},
{ &hf_dnp3_al_biq_b7,
{ "Point Value", "dnp3.al.biq.b7",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BI_FLAG7,
NULL, HFILL }
},
{ &hf_dnp3_al_boq_b0,
{ "Online", "dnp3.al.boq.b0",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BO_FLAG0,
NULL, HFILL }
},
{ &hf_dnp3_al_boq_b1,
{ "Restart", "dnp3.al.boq.b1",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BO_FLAG1,
NULL, HFILL }
},
{ &hf_dnp3_al_boq_b2,
{ "Comm Fail", "dnp3.al.boq.b2",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BO_FLAG2,
NULL, HFILL }
},
{ &hf_dnp3_al_boq_b3,
{ "Remote Force", "dnp3.al.boq.b3",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BO_FLAG3,
NULL, HFILL }
},
{ &hf_dnp3_al_boq_b4,
{ "Local Force", "dnp3.al.boq.b4",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BO_FLAG4,
NULL, HFILL }
},
{ &hf_dnp3_al_boq_b5,
{ "Reserved", "dnp3.al.boq.b5",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BO_FLAG5,
NULL, HFILL }
},
{ &hf_dnp3_al_boq_b6,
{ "Reserved", "dnp3.al.boq.b6",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BO_FLAG6,
NULL, HFILL }
},
{ &hf_dnp3_al_boq_b7,
{ "Point Value", "dnp3.al.boq.b7",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BO_FLAG7,
NULL, HFILL }
},
{ &hf_dnp3_al_ctrq_b0,
{ "Online", "dnp3.al.ctrq.b0",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_CTR_FLAG0,
NULL, HFILL }
},
{ &hf_dnp3_al_ctrq_b1,
{ "Restart", "dnp3.al.ctrq.b1",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_CTR_FLAG1,
NULL, HFILL }
},
{ &hf_dnp3_al_ctrq_b2,
{ "Comm Fail", "dnp3.al.ctrq.b2",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_CTR_FLAG2,
NULL, HFILL }
},
{ &hf_dnp3_al_ctrq_b3,
{ "Remote Force", "dnp3.al.ctrq.b3",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_CTR_FLAG3,
NULL, HFILL }
},
{ &hf_dnp3_al_ctrq_b4,
{ "Local Force", "dnp3.al.ctrq.b4",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_CTR_FLAG4,
NULL, HFILL }
},
{ &hf_dnp3_al_ctrq_b5,
{ "Roll-Over", "dnp3.al.ctrq.b5",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_CTR_FLAG5,
NULL, HFILL }
},
{ &hf_dnp3_al_ctrq_b6,
{ "Discontinuity", "dnp3.al.ctrq.b6",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_CTR_FLAG6,
NULL, HFILL }
},
{ &hf_dnp3_al_ctrq_b7,
{ "Reserved", "dnp3.al.ctrq.b7",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_CTR_FLAG7,
NULL, HFILL }
},
{ &hf_dnp3_al_aiq_b0,
{ "Online", "dnp3.al.aiq.b0",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AI_FLAG0,
NULL, HFILL }
},
{ &hf_dnp3_al_aiq_b1,
{ "Restart", "dnp3.al.aiq.b1",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AI_FLAG1,
NULL, HFILL }
},
{ &hf_dnp3_al_aiq_b2,
{ "Comm Fail", "dnp3.al.aiq.b2",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AI_FLAG2,
NULL, HFILL }
},
{ &hf_dnp3_al_aiq_b3,
{ "Remote Force", "dnp3.al.aiq.b3",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AI_FLAG3,
NULL, HFILL }
},
{ &hf_dnp3_al_aiq_b4,
{ "Local Force", "dnp3.al.aiq.b4",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AI_FLAG4,
NULL, HFILL }
},
{ &hf_dnp3_al_aiq_b5,
{ "Over-Range", "dnp3.al.aiq.b5",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AI_FLAG5,
NULL, HFILL }
},
{ &hf_dnp3_al_aiq_b6,
{ "Reference Check", "dnp3.al.aiq.b6",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AI_FLAG6,
NULL, HFILL }
},
{ &hf_dnp3_al_aiq_b7,
{ "Reserved", "dnp3.al.aiq.b7",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AI_FLAG7,
NULL, HFILL }
},
{ &hf_dnp3_al_aoq_b0,
{ "Online", "dnp3.al.aoq.b0",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AO_FLAG0,
NULL, HFILL }
},
{ &hf_dnp3_al_aoq_b1,
{ "Restart", "dnp3.al.aoq.b1",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AO_FLAG1,
NULL, HFILL }
},
{ &hf_dnp3_al_aoq_b2,
{ "Comm Fail", "dnp3.al.aoq.b2",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AO_FLAG2,
NULL, HFILL }
},
{ &hf_dnp3_al_aoq_b3,
{ "Remote Force", "dnp3.al.aoq.b3",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AO_FLAG3,
NULL, HFILL }
},
{ &hf_dnp3_al_aoq_b4,
{ "Local Force", "dnp3.al.aoq.b4",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AO_FLAG4,
NULL, HFILL }
},
{ &hf_dnp3_al_aoq_b5,
{ "Reserved", "dnp3.al.aoq.b5",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AO_FLAG5,
NULL, HFILL }
},
{ &hf_dnp3_al_aoq_b6,
{ "Reserved", "dnp3.al.aoq.b6",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AO_FLAG6,
NULL, HFILL }
},
{ &hf_dnp3_al_aoq_b7,
{ "Reserved", "dnp3.al.aoq.b7",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AO_FLAG7,
NULL, HFILL }
},
{ &hf_dnp3_al_timestamp,
{ "Timestamp", "dnp3.al.timestamp",
FT_ABSOLUTE_TIME, ABSOLUTE_TIME_UTC, NULL, 0,
"Object Timestamp", HFILL }
},
{ &hf_dnp3_al_file_perms,
{ "Permissions", "dnp3.al.file.perms",
FT_UINT16, BASE_OCT, NULL, 0x0,
NULL, HFILL }
},
{ &hf_dnp3_al_file_perms_read_owner,
{ "Read permission for owner", "dnp3.al.file.perms.read_owner",
FT_BOOLEAN, 16, TFS(&tfs_yes_no), 0400,
NULL, HFILL }
},
{ &hf_dnp3_al_file_perms_write_owner,
{ "Write permission for owner", "dnp3.al.file.perms.write_owner",
FT_BOOLEAN, 16, TFS(&tfs_yes_no), 0200,
NULL, HFILL }
},
{ &hf_dnp3_al_file_perms_exec_owner,
{ "Execute permission for owner", "dnp3.al.file.perms.exec_owner",
FT_BOOLEAN, 16, TFS(&tfs_yes_no), 0100,
NULL, HFILL }
},
{ &hf_dnp3_al_file_perms_read_group,
{ "Read permission for group", "dnp3.al.file.perms.read_group",
FT_BOOLEAN, 16, TFS(&tfs_yes_no), 040,
NULL, HFILL }
},
{ &hf_dnp3_al_file_perms_write_group,
{ "Write permission for group", "dnp3.al.file.perms.write_group",
FT_BOOLEAN, 16, TFS(&tfs_yes_no), 020,
NULL, HFILL }
},
{ &hf_dnp3_al_file_perms_exec_group,
{ "Execute permission for group", "dnp3.al.file.perms.exec_group",
FT_BOOLEAN, 16, TFS(&tfs_yes_no), 010,
NULL, HFILL }
},
{ &hf_dnp3_al_file_perms_read_world,
{ "Read permission for world", "dnp3.al.file.perms.read_world",
FT_BOOLEAN, 16, TFS(&tfs_yes_no), 04,
NULL, HFILL }
},
{ &hf_dnp3_al_file_perms_write_world,
{ "Write permission for world", "dnp3.al.file.perms.write_world",
FT_BOOLEAN, 16, TFS(&tfs_yes_no), 02,
NULL, HFILL }
},
{ &hf_dnp3_al_file_perms_exec_world,
{ "Execute permission for world", "dnp3.al.file.perms.exec_world",
FT_BOOLEAN, 16, TFS(&tfs_yes_no), 01,
NULL, HFILL }
},
{ &hf_dnp3_al_rel_timestamp,
{ "Relative Timestamp", "dnp3.al.reltimestamp",
FT_RELATIVE_TIME, BASE_NONE, NULL, 0,
"Object Relative Timestamp", HFILL }
},
{ &hf_dnp3_al_datatype,
{ "Data Type", "dnp3.al.datatype",
FT_UINT8, BASE_HEX, VALS(dnp3_al_data_type_vals), 0,
NULL, HFILL }
},
{ &hf_dnp3_al_da_length,
{ "Device Attribute Length", "dnp3.al.da.length",
FT_UINT8, BASE_DEC, NULL, 0,
NULL, HFILL }
},
{ &hf_dnp3_al_da_int8,
{ "8-Bit Integer Value", "dnp3.al.da.int8",
FT_INT8, BASE_DEC, NULL, 0,
NULL, HFILL }
},
{ &hf_dnp3_al_da_int32,
{ "32-Bit Integer Value", "dnp3.al.da.int32",
FT_INT32, BASE_DEC, NULL, 0,
NULL, HFILL }
},
{ &hf_dnp3_fragment,
{ "DNP 3.0 AL Fragment", "dnp3.al.fragment",
FT_FRAMENUM, BASE_NONE, NULL, 0x0,
"DNP 3.0 Application Layer Fragment", HFILL }
},
{ &hf_dnp3_fragments,
{ "DNP 3.0 AL Fragments", "dnp3.al.fragments",
FT_NONE, BASE_NONE, NULL, 0x0,
"DNP 3.0 Application Layer Fragments", HFILL }
},
{ &hf_dnp3_fragment_overlap,
{ "Fragment overlap", "dnp3.al.fragment.overlap",
FT_BOOLEAN, BASE_NONE, NULL, 0x0,
"Fragment overlaps with other fragments", HFILL }
},
{ &hf_dnp3_fragment_overlap_conflict,
{ "Conflicting data in fragment overlap", "dnp3.al.fragment.overlap.conflict",
FT_BOOLEAN, BASE_NONE, NULL, 0x0,
"Overlapping fragments contained conflicting data", HFILL }
},
{ &hf_dnp3_fragment_multiple_tails,
{ "Multiple tail fragments found", "dnp3.al.fragment.multipletails",
FT_BOOLEAN, BASE_NONE, NULL, 0x0,
"Several tails were found when defragmenting the packet", HFILL }
},
{ &hf_dnp3_fragment_too_long_fragment,
{ "Fragment too long", "dnp3.al.fragment.toolongfragment",
FT_BOOLEAN, BASE_NONE, NULL, 0x0,
"Fragment contained data past end of packet", HFILL }
},
{ &hf_dnp3_fragment_error,
{ "Defragmentation error", "dnp3.al.fragment.error",
FT_FRAMENUM, BASE_NONE, NULL, 0x0,
"Defragmentation error due to illegal fragments", HFILL }
},
{ &hf_dnp3_fragment_count,
{ "Fragment count", "dnp3.al.fragment.count",
FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_dnp3_fragment_reassembled_in,
{ "Reassembled PDU In Frame", "dnp3.al.fragment.reassembled_in",
FT_FRAMENUM, BASE_NONE, NULL, 0x0,
"This PDU is reassembled in this frame", HFILL }
},
{ &hf_dnp3_fragment_reassembled_length,
{ "Reassembled DNP length", "dnp3.al.fragment.reassembled.length",
FT_UINT32, BASE_DEC, NULL, 0x0,
"The total length of the reassembled payload", HFILL }
},
/* Generated from convert_proto_tree_add_text.pl */
{ &hf_dnp3_al_point_index, { "Point Index", "dnp3.al.point_index", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_dnp3_al_da_value, { "Value", "dnp3.al.da.value", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_dnp3_al_count, { "Count", "dnp3.al.count", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_dnp3_al_on_time, { "On Time", "dnp3.al.on_time", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_dnp3_al_off_time, { "Off Time", "dnp3.al.off_time", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_dnp3_al_time_delay, { "Time Delay", "dnp3.al.time_delay", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_dnp3_al_file_string_offset, { "File String Offset", "dnp3.al.file_string_offset", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_dnp3_al_file_string_length, { "File String Length", "dnp3.al.file_string_length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_dnp3_al_file_name, { "File Name", "dnp3.al.file_name", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_dnp3_al_octet_string, { "Octet String", "dnp3.al.octet_string", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_dnp3_unknown_data_chunk, { "Unknown Data Chunk", "dnp3.al.unknown_data_chunk", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_dnp3_application_chunk, { "Application Chunk", "dnp.application_chunk", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
};
/* Setup protocol subtree array */
static gint *ett[] = {
&ett_dnp3,
&ett_dnp3_dl,
&ett_dnp3_dl_ctl,
&ett_dnp3_tr_ctl,
&ett_dnp3_al_data,
&ett_dnp3_al,
&ett_dnp3_al_ctl,
&ett_dnp3_al_obj_point_tcc,
&ett_dnp3_al_iin,
&ett_dnp3_al_obj,
&ett_dnp3_al_obj_qualifier,
&ett_dnp3_al_obj_range,
&ett_dnp3_al_objdet,
&ett_dnp3_al_obj_quality,
&ett_dnp3_al_obj_point,
&ett_dnp3_al_obj_point_perms,
&ett_dnp3_fragment,
&ett_dnp3_fragments
};
static ei_register_info ei[] = {
{ &ei_dnp_num_items_neg, { "dnp3.num_items_neg", PI_MALFORMED, PI_ERROR, "Negative number of items", EXPFILL }},
{ &ei_dnp_invalid_length, { "dnp3.invalid_length", PI_MALFORMED, PI_ERROR, "Invalid length", EXPFILL }},
{ &ei_dnp_iin_abnormal, { "dnp3.iin_abnormal", PI_PROTOCOL, PI_WARN, "IIN Abnormality", EXPFILL }},
/* Generated from convert_proto_tree_add_text.pl */
#if 0
{ &ei_dnp3_buffering_user_data_until_final_frame_is_received, { "dnp3.buffering_user_data_until_final_frame_is_received", PI_PROTOCOL, PI_WARN, "Buffering User Data Until Final Frame is Received..", EXPFILL }},
#endif
{ &ei_dnp3_crc_failed, { "dnp.crc_failed", PI_PROTOCOL, PI_WARN, "CRC failed", EXPFILL }},
};
module_t *dnp3_module;
expert_module_t* expert_dnp3;
/* Register protocol init routine */
register_init_routine(&dnp3_init);
register_cleanup_routine(&dnp3_cleanup);
/* Register the protocol name and description */
proto_dnp3 = proto_register_protocol("Distributed Network Protocol 3.0",
"DNP 3.0", "dnp3");
/* Register the dissector so it may be used as a User DLT payload protocol */
register_dissector("dnp3.udp", dissect_dnp3_udp, proto_dnp3);
/* Required function calls to register the header fields and subtrees used */
proto_register_field_array(proto_dnp3, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
expert_dnp3 = expert_register_protocol(proto_dnp3);
expert_register_field_array(expert_dnp3, ei, array_length(ei));
dnp3_module = prefs_register_protocol(proto_dnp3, NULL);
prefs_register_obsolete_preference(dnp3_module, "heuristics");
prefs_register_bool_preference(dnp3_module, "desegment",
"Reassemble DNP3 messages spanning multiple TCP segments",
"Whether the DNP3 dissector should reassemble messages spanning multiple TCP segments."
" To use this option, you must also enable \"Allow subdissectors to reassemble TCP streams\" in the TCP protocol settings.",
&dnp3_desegment);
}
void
proto_reg_handoff_dnp3(void)
{
dissector_handle_t dnp3_tcp_handle;
dissector_handle_t dnp3_udp_handle;
/* register as heuristic dissector for both TCP and UDP */
heur_dissector_add("tcp", dissect_dnp3_tcp_heur, "DNP 3.0 over TCP", "dnp3_tcp", proto_dnp3, HEURISTIC_DISABLE);
heur_dissector_add("udp", dissect_dnp3_udp_heur, "DNP 3.0 over UDP", "dnp3_udp", proto_dnp3, HEURISTIC_DISABLE);
dnp3_tcp_handle = create_dissector_handle(dissect_dnp3_tcp, proto_dnp3);
dnp3_udp_handle = create_dissector_handle(dissect_dnp3_udp, proto_dnp3);
dissector_add_uint("tcp.port", TCP_PORT_DNP, dnp3_tcp_handle);
dissector_add_uint("udp.port", UDP_PORT_DNP, dnp3_udp_handle);
dissector_add_for_decode_as("rtacser.data", dnp3_udp_handle);
}
/*
* Editor modelines
*
* Local Variables:
* c-basic-offset: 2
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* ex: set shiftwidth=2 tabstop=8 expandtab:
* :indentSize=2:tabSize=8:noTabs=true:
*/