2 * Routines for DNP dissection
3 * Copyright 2003, 2006, 2007, Graham Bloice <graham.bloice@trihedral.com>
5 * DNP3.0 Application Layer Object dissection added by Chris Bontje (chrisbontje@shaw.ca)
8 * Major updates: tcp and application layer defragmentation, more object dissections by Graham Bloice
12 * Wireshark - Network traffic analyzer
13 * By Gerald Combs <gerald@wireshark.org>
14 * Copyright 1998 Gerald Combs
16 * This program is free software; you can redistribute it and/or
17 * modify it under the terms of the GNU General Public License
18 * as published by the Free Software Foundation; either version 2
19 * of the License, or (at your option) any later version.
21 * This program is distributed in the hope that it will be useful,
22 * but WITHOUT ANY WARRANTY; without even the implied warranty of
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 * GNU General Public License for more details.
26 * You should have received a copy of the GNU General Public License
27 * along with this program; if not, write to the Free Software
28 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
42 #include <epan/packet.h>
43 #include <epan/prefs.h>
44 #include <epan/reassemble.h>
45 #include <epan/emem.h>
46 #include <epan/dissectors/packet-tcp.h>
47 #include <epan/conversation.h>
48 #include <epan/expert.h>
55 * although note that you have to join the DNP organization to get to
56 * see the protocol specs online - otherwise, you have to buy a
59 * ...Application Layer Notes...
61 * Application Layer Decoding based on information available in
62 * DNP3 Basic 4 Documentation Set, specifically the document:
63 * "DNP V3.00 Application Layer" v0.03 P009-0PD.APP & Technical Bulletins
65 * ---------------------------------------------------------------------------
67 * Several command codes were missing, causing the dissector to abort decoding
68 * on valid packets. Those commands have been added.
70 * The semantics of Variation 0 have been cleaned up. Variation 0 is the
71 * "Default Variation". It is used only in Master -> Slave read commands
72 * to request the data in whatever variation the Slave is configured to use by
73 * default. Decoder strings have been added to the Binary Output and
74 * Analog Output objects (10 and 40) so that group read commands will
77 * Roy M. Silvernail <roy@rant-central.com> 01/05/2009
81 /***************************************************************************/
82 /* DNP 3.0 Constants */
83 /***************************************************************************/
84 #define DNP_HDR_LEN 10
85 #define TCP_PORT_DNP 20000
86 #define UDP_PORT_DNP 20000
88 /***************************************************************************/
89 /* Datalink and Transport Layer Bit-Masks */
90 /***************************************************************************/
91 #define DNP3_CTL_DIR 0x80
92 #define DNP3_CTL_PRM 0x40
93 #define DNP3_CTL_FCB 0x20
94 #define DNP3_CTL_FCV 0x10
95 #define DNP3_CTL_RES 0x20
96 #define DNP3_CTL_DFC 0x10
97 #define DNP3_CTL_FUNC 0x0f
99 #define DNP3_TR_FIR 0x40
100 #define DNP3_TR_FIN 0x80
101 #define DNP3_TR_SEQ 0x3f
103 #define AL_MAX_CHUNK_SIZE 16
105 /***************************************************************************/
106 /* Data Link Function codes */
107 /***************************************************************************/
108 /* Primary to Secondary */
109 #define DL_FUNC_RESET_LINK 0x00
110 #define DL_FUNC_RESET_PROC 0x01
111 #define DL_FUNC_TEST_LINK 0x02
112 #define DL_FUNC_USER_DATA 0x03
113 #define DL_FUNC_UNC_DATA 0x04
114 #define DL_FUNC_LINK_STAT 0x09
116 /* Secondary to Primary */
117 #define DL_FUNC_ACK 0x00
118 #define DL_FUNC_NACK 0x01
119 #define DL_FUNC_STAT_LINK 0x0B
120 #define DL_FUNC_NO_FUNC 0x0E
121 #define DL_FUNC_NOT_IMPL 0x0F
123 /***************************************************************************/
124 /* Application Layer Bit-Masks */
125 /***************************************************************************/
126 #define DNP3_AL_UNS 0x10
127 #define DNP3_AL_CON 0x20
128 #define DNP3_AL_FIN 0x40
129 #define DNP3_AL_FIR 0x80
130 #define DNP3_AL_SEQ 0x0f
131 #define DNP3_AL_FUNC 0xff
133 /***************************************************************************/
134 /* Application Layer Function codes */
135 /***************************************************************************/
136 #define AL_FUNC_CONFIRM 0x00 /* 00 - Confirm */
137 #define AL_FUNC_READ 0x01 /* 01 - Read */
138 #define AL_FUNC_WRITE 0x02 /* 02 - Write */
139 #define AL_FUNC_SELECT 0x03 /* 03 - Select */
140 #define AL_FUNC_OPERATE 0x04 /* 04 - Operate */
141 #define AL_FUNC_DIROP 0x05 /* 05 - Direct Operate */
142 #define AL_FUNC_DIROPNACK 0x06 /* 06 - Direct Operate No ACK */
143 #define AL_FUNC_FRZ 0x07 /* 07 - Immediate Freeze */
144 #define AL_FUNC_FRZNACK 0x08 /* 08 - Immediate Freeze No ACK */
145 #define AL_FUNC_FRZCLR 0x09 /* 09 - Freeze and Clear */
146 #define AL_FUNC_FRZCLRNACK 0x0A /* 10 - Freeze and Clear No ACK */
147 #define AL_FUNC_FRZT 0x0B /* 11 - Freeze With Time */
148 #define AL_FUNC_FRZTNACK 0x0C /* 12 - Freeze With Time No ACK */
149 #define AL_FUNC_COLDRST 0x0D /* 13 - Cold Restart */
150 #define AL_FUNC_WARMRST 0x0E /* 14 - Warm Restart */
151 #define AL_FUNC_INITDATA 0x0F /* 15 - Initialize Data */
152 #define AL_FUNC_INITAPP 0x10 /* 16 - Initialize Application */
153 #define AL_FUNC_STARTAPP 0x11 /* 17 - Start Application */
154 #define AL_FUNC_STOPAPP 0x12 /* 18 - Stop Application */
155 #define AL_FUNC_SAVECFG 0x13 /* 19 - Save Configuration */
156 #define AL_FUNC_ENSPMSG 0x14 /* 20 - Enable Spontaneous Msg */
157 #define AL_FUNC_DISSPMSG 0x15 /* 21 - Disable Spontaneous Msg */
158 #define AL_FUNC_ASSIGNCL 0x16 /* 22 - Assign Classes */
159 #define AL_FUNC_DELAYMST 0x17 /* 23 - Delay Measurement */
160 #define AL_FUNC_RECCT 0x18 /* 24 - Record Current Time */
161 #define AL_FUNC_OPENFILE 0x19 /* 25 - Open File */
162 #define AL_FUNC_CLOSEFILE 0x1A /* 26 - Close File */
163 #define AL_FUNC_DELETEFILE 0x1B /* 27 - Delete File */
164 #define AL_FUNC_GETFILEINF 0x1C /* 28 - Get File Info */
165 #define AL_FUNC_AUTHFILE 0x1D /* 29 - Authenticate File */
166 #define AL_FUNC_ABORTFILE 0x1E /* 30 - Abort File */
167 #define AL_FUNC_ACTCNF 0x1F /* 31 - Activate Config */
168 #define AL_FUNC_AUTHREQ 0x20 /* 32 - Authentication Request */
169 #define AL_FUNC_AUTHERR 0x21 /* 33 - Authentication Error */
170 #define AL_FUNC_RESPON 0x81 /* 129 - Response */
171 #define AL_FUNC_UNSOLI 0x82 /* 130 - Unsolicited Response */
172 #define AL_FUNC_AUTHRESP 0x83 /* 131 - Authentication Response */
174 /***************************************************************************/
175 /* Application Layer Internal Indication (IIN) bits */
176 /* 2 Bytes, message formatting: [First Octet] | [Second Octet] */
177 /***************************************************************************/
179 #define AL_IIN_BMSG 0x0100 /* Bit 0 - Broadcast message rx'd */
180 #define AL_IIN_CLS1D 0x0200 /* Bit 1 - Class 1 Data Available */
181 #define AL_IIN_CLS2D 0x0400 /* Bit 2 - Class 2 Data Available */
182 #define AL_IIN_CLS3D 0x0800 /* Bit 3 - Class 3 Data Available */
183 #define AL_IIN_TSR 0x1000 /* Bit 4 - Time Sync Req'd from Master */
184 #define AL_IIN_DOL 0x2000 /* Bit 5 - Digital Outputs in Local Mode */
185 #define AL_IIN_DT 0x4000 /* Bit 6 - Device Trouble */
186 #define AL_IIN_RST 0x8000 /* Bit 7 - Device Restart */
189 /* 0x0001 Bit 0 - Reserved */
190 #define AL_IIN_OBJU 0x0002 /* Bit 1 - Requested Objects Unknown */
191 #define AL_IIN_PIOOR 0x0004 /* Bit 2 - Parameters Invalid or Out of Range */
192 #define AL_IIN_EBO 0x0008 /* Bit 3 - Event Buffer Overflow */
193 #define AL_IIN_OAE 0x0010 /* Bit 4 - Operation Already Executing */
194 #define AL_IIN_CC 0x0020 /* Bit 5 - Device Configuration Corrupt */
195 /* 0x0040 Bit 6 - Reserved */
196 /* 0x0080 Bit 7 - Reserved */
198 /***************************************************************************/
199 /* Application Layer Data Object Qualifier */
200 /***************************************************************************/
202 #define AL_OBJQ_INDEX 0x70 /* x111xxxx Masks Index from Qualifier */
203 #define AL_OBJQ_CODE 0x0F /* xxxx1111 Masks Code from Qualifier */
205 /* Index Size (3-bits x111xxxx) */
206 /* When Qualifier Code != 11 */
207 #define AL_OBJQL_IDX_NI 0x00 /* Objects are Packed with no index */
208 #define AL_OBJQL_IDX_1O 0x01 /* Objects are prefixed w/ 1-octet index */
209 #define AL_OBJQL_IDX_2O 0x02 /* Objects are prefixed w/ 2-octet index */
210 #define AL_OBJQL_IDX_4O 0x03 /* Objects are prefixed w/ 4-octet index */
211 #define AL_OBJQL_IDX_1OS 0x04 /* Objects are prefixed w/ 1-octet object size */
212 #define AL_OBJQL_IDX_2OS 0x05 /* Objects are prefixed w/ 2-octet object size */
213 #define AL_OBJQL_IDX_4OS 0x06 /* Objects are prefixed w/ 4-octet object size */
215 /* When Qualifier Code == 11 */
216 #define AL_OBJQL_IDX11_1OIS 0x01 /* 1 octet identifier size */
217 #define AL_OBJQL_IDX11_2OIS 0x02 /* 2 octet identifier size */
218 #define AL_OBJQL_IDX11_4OIS 0x03 /* 4 octet identifier size */
220 /* Qualifier Code (4-bits) */
221 /* 4-bits ( xxxx1111 ) */
222 #define AL_OBJQL_CODE_SSI8 0x00 /* 00 8-bit Start and Stop Indices in Range Field */
223 #define AL_OBJQL_CODE_SSI16 0x01 /* 01 16-bit Start and Stop Indices in Range Field */
224 #define AL_OBJQL_CODE_SSI32 0x02 /* 02 32-bit Start and Stop Indices in Range Field */
225 #define AL_OBJQL_CODE_AA8 0x03 /* 03 8-bit Absolute Address in Range Field */
226 #define AL_OBJQL_CODE_AA16 0x04 /* 04 16-bit Absolute Address in Range Field */
227 #define AL_OBJQL_CODE_AA32 0x05 /* 05 32-bit Absolute Address in Range Field */
228 #define AL_OBJQL_CODE_R0 0x06 /* 06 Length of Range field is 0 (no range field) */
229 #define AL_OBJQL_CODE_SF8 0x07 /* 07 8-bit Single Field Quantity */
230 #define AL_OBJQL_CODE_SF16 0x08 /* 08 16-bit Single Field Quantity */
231 #define AL_OBJQL_CODE_SF32 0x09 /* 09 32-bit Single Field Quantity */
232 /* 0x0A 10 Reserved */
233 #define AL_OBJQL_CODE_FF 0x0B /* 11 Free-format Qualifier */
234 /* 0x0C 12 Reserved */
235 /* 0x0D 13 Reserved */
236 /* 0x0E 14 Reserved */
237 /* 0x0F 15 Reserved */
239 /***************************************************************************/
240 /* Application Layer Data Object Definitions */
241 /***************************************************************************/
242 /* Binary Input Objects */
243 #define AL_OBJ_BI_ALL 0x0100 /* 01 00 Binary Input Default Variation */
244 #define AL_OBJ_BI_1BIT 0x0101 /* 01 01 Single-bit Binary Input */
245 #define AL_OBJ_BI_STAT 0x0102 /* 01 02 Binary Input With Status */
246 #define AL_OBJ_BIC_ALL 0x0200 /* 02 00 Binary Input Change Default Variation */
247 #define AL_OBJ_BIC_NOTIME 0x0201 /* 02 01 Binary Input Change Without Time */
248 #define AL_OBJ_BIC_TIME 0x0202 /* 02 02 Binary Input Change With Time */
249 #define AL_OBJ_BIC_RTIME 0x0203 /* 02 03 Binary Input Change With Relative Time */
251 /* Double-bit Input Objects */
252 #define AL_OBJ_2BI_ALL 0x0300 /* 03 00 Double-bit Input Default Variation */
253 #define AL_OBJ_2BI_NF 0x0301 /* 03 01 Double-bit Input No Flags */
254 #define AL_OBJ_2BI_STAT 0x0302 /* 03 02 Double-bit Input With Status */
255 #define AL_OBJ_2BIC_NOTIME 0x0401 /* 04 01 Double-bit Input Change Without Time */
256 #define AL_OBJ_2BIC_TIME 0x0402 /* 04 02 Double-bit Input Change With Time */
257 #define AL_OBJ_2BIC_RTIME 0x0403 /* 04 03 Double-bit Input Change With Relative Time */
259 /* Binary Input Quality Flags */
260 #define AL_OBJ_BI_FLAG0 0x0001 /* Point Online (0=Offline; 1=Online) */
261 #define AL_OBJ_BI_FLAG1 0x0002 /* Restart (0=Normal; 1=Restart) */
262 #define AL_OBJ_BI_FLAG2 0x0004 /* Comms Lost (0=Normal; 1=Lost) */
263 #define AL_OBJ_BI_FLAG3 0x0008 /* Remote Force (0=Normal; 1=Forced) */
264 #define AL_OBJ_BI_FLAG4 0x0010 /* Local Force (0=Normal; 1=Forced) */
265 #define AL_OBJ_BI_FLAG5 0x0020 /* Chatter Filter (0=Normal; 1=Filter On) */
266 #define AL_OBJ_BI_FLAG6 0x0040 /* Double-bit LSB (0=Off; 1=On) */
267 #define AL_OBJ_BI_FLAG7 0x0080 /* Point State (0=Off; 1=On) or Double-bit MSB */
269 /***************************************************************************/
270 /* Binary Output Objects */
271 #define AL_OBJ_BO_ALL 0x0A00 /* 10 00 Binary Output Default Variation */
272 #define AL_OBJ_BO 0x0A01 /* 10 01 Binary Output */
273 #define AL_OBJ_BO_STAT 0x0A02 /* 10 02 Binary Output Status */
274 #define AL_OBJ_CTLOP_BLK 0x0C01 /* 12 01 Control Relay Output Block */
275 /* 0x0C02 12 02 Pattern Control Block */
276 /* 0x0C03 12 03 Pattern Mask */
278 #define AL_OBJCTLC_CODE 0x0F /* Bit-Mask xxxx1111 for Control Code 'Code' */
279 #define AL_OBJCTLC_MISC 0x30 /* Bit-Mask xx11xxxx for Control Code Misc Values */
280 #define AL_OBJCTLC_TC 0xC0 /* Bit-Mask 11xxxxxx for Control Code 'Trip/Close' */
282 #define AL_OBJCTLC_CODE0 0x00 /* xxxx0000 NUL Operation; only process R attribute */
283 #define AL_OBJCTLC_CODE1 0x01 /* xxxx0001 Pulse On ^On-Time -> vOff-Time, remain off */
284 #define AL_OBJCTLC_CODE2 0x02 /* xxxx0010 Pulse Off vOff-Time -> ^On-Time, remain on */
285 #define AL_OBJCTLC_CODE3 0x03 /* xxxx0011 Latch On */
286 #define AL_OBJCTLC_CODE4 0x04 /* xxxx0100 Latch Off */
287 /* 0x05-0x15 Reserved */
289 #define AL_OBJCTLC_QUEUE 0x10 /* xxx1xxxx for Control Code 'Queue' */
290 #define AL_OBJCTLC_CLEAR 0x20 /* xx1xxxxx for Control Code 'Clear' */
292 #define AL_OBJCTLC_TC0 0x00 /* 00xxxxxx NUL */
293 #define AL_OBJCTLC_TC1 0x40 /* 01xxxxxx Close */
294 #define AL_OBJCTLC_TC2 0x80 /* 10xxxxxx Trip */
296 #define AL_OBJCTL_STAT0 0x00 /* Request Accepted, Initiated or Queued */
297 #define AL_OBJCTL_STAT1 0x01 /* Request Not Accepted; Arm-timer expired */
298 #define AL_OBJCTL_STAT2 0x02 /* Request Not Accepted; No 'SELECT' rx'd */
299 #define AL_OBJCTL_STAT3 0x03 /* Request Not Accepted; Format errors in ctrl request */
300 #define AL_OBJCTL_STAT4 0x04 /* Control Operation Not Supported for this point */
301 #define AL_OBJCTL_STAT5 0x05 /* Request Not Accepted; Ctrl Queue full or pt. active */
302 #define AL_OBJCTL_STAT6 0x06 /* Request Not Accepted; Ctrl HW Problems */
303 #define AL_OBJCTL_STAT7 0x07 /* Request Not Accepted; Local/Remote switch in Local*/
304 #define AL_OBJCTL_STAT8 0x08 /* Request Not Accepted; Too many operations requested */
305 #define AL_OBJCTL_STAT9 0x09 /* Request Not Accepted; Insufficient authorization */
306 #define AL_OBJCTL_STAT10 0x0A /* Request Not Accepted; Local automation proc active */
308 /* Binary Output Quality Flags */
309 #define AL_OBJ_BO_FLAG0 0x0001 /* Point Online (0=Offline; 1=Online) */
310 #define AL_OBJ_BO_FLAG1 0x0002 /* Restart (0=Normal; 1=Restart) */
311 #define AL_OBJ_BO_FLAG2 0x0004 /* Comms Lost (0=Normal; 1=Lost) */
312 #define AL_OBJ_BO_FLAG3 0x0008 /* Remote Force (0=Normal; 1=Forced) */
313 #define AL_OBJ_BO_FLAG4 0x0010 /* Local Force (0=Normal; 1=Forced) */
314 #define AL_OBJ_BO_FLAG5 0x0020 /* Reserved */
315 #define AL_OBJ_BO_FLAG6 0x0040 /* Reserved */
316 #define AL_OBJ_BO_FLAG7 0x0080 /* Point State (0=Off; 1=On) */
318 /***************************************************************************/
319 /* Counter Objects */
320 #define AL_OBJ_CTR_ALL 0x1400 /* 20 00 Binary Counter Default Variation */
321 #define AL_OBJ_CTR_32 0x1401 /* 20 01 32-Bit Binary Counter */
322 #define AL_OBJ_CTR_16 0x1402 /* 20 02 16-Bit Binary Counter */
323 #define AL_OBJ_DCTR_32 0x1403 /* 20 03 32-Bit Delta Counter */
324 #define AL_OBJ_DCTR_16 0x1404 /* 20 04 16-Bit Delta Counter */
325 #define AL_OBJ_CTR_32NF 0x1405 /* 20 05 32-Bit Binary Counter Without Flag */
326 #define AL_OBJ_CTR_16NF 0x1406 /* 20 06 16-Bit Binary Counter Without Flag */
327 #define AL_OBJ_DCTR_32NF 0x1407 /* 20 07 32-Bit Delta Counter Without Flag */
328 #define AL_OBJ_DCTR_16NF 0x1408 /* 20 08 16-Bit Delta Counter Without Flag */
329 #define AL_OBJ_FCTR_ALL 0x1500 /* 21 00 Frozen Binary Counter Default Variation */
330 #define AL_OBJ_FCTR_32 0x1501 /* 21 01 32-Bit Frozen Counter */
331 #define AL_OBJ_FCTR_16 0x1502 /* 21 02 16-Bit Frozen Counter */
332 #define AL_OBJ_FDCTR_32 0x1503 /* 21 03 32-Bit Frozen Delta Counter */
333 #define AL_OBJ_FDCTR_16 0x1504 /* 21 04 16-Bit Frozen Delta Counter */
334 #define AL_OBJ_FCTR_32T 0x1505 /* 21 05 32-Bit Frozen Counter w/ Time of Freeze */
335 #define AL_OBJ_FCTR_16T 0x1506 /* 21 06 16-Bit Frozen Counter w/ Time of Freeze */
336 #define AL_OBJ_FDCTR_32T 0x1507 /* 21 07 32-Bit Frozen Delta Counter w/ Time of Freeze */
337 #define AL_OBJ_FDCTR_16T 0x1508 /* 21 08 16-Bit Frozen Delta Counter w/ Time of Freeze */
338 #define AL_OBJ_FCTR_32NF 0x1509 /* 21 09 32-Bit Frozen Counter Without Flag */
339 #define AL_OBJ_FCTR_16NF 0x1510 /* 21 10 16-Bit Frozen Counter Without Flag */
340 #define AL_OBJ_FDCTR_32NF 0x1511 /* 21 11 32-Bit Frozen Delta Counter Without Flag */
341 #define AL_OBJ_FDCTR_16NF 0x1512 /* 21 12 16-Bit Frozen Delta Counter Without Flag */
342 #define AL_OBJ_CTRC_ALL 0x1600 /* 22 00 Counter Change Event Default Variation */
343 #define AL_OBJ_CTRC_32 0x1601 /* 22 01 32-Bit Counter Change Event w/o Time */
344 #define AL_OBJ_CTRC_16 0x1602 /* 22 02 16-Bit Counter Change Event w/o Time */
345 #define AL_OBJ_DCTRC_32 0x1603 /* 22 03 32-Bit Delta Counter Change Event w/o Time */
346 #define AL_OBJ_DCTRC_16 0x1604 /* 22 04 16-Bit Delta Counter Change Event w/o Time */
347 #define AL_OBJ_CTRC_32T 0x1605 /* 22 05 32-Bit Counter Change Event with Time */
348 #define AL_OBJ_CTRC_16T 0x1606 /* 22 06 16-Bit Counter Change Event with Time */
349 #define AL_OBJ_DCTRC_32T 0x1607 /* 22 07 32-Bit Delta Counter Change Event with Time */
350 #define AL_OBJ_DCTRC_16T 0x1608 /* 22 08 16-Bit Delta Counter Change Event with Time */
351 #define AL_OBJ_FCTRC_ALL 0x1700 /* 21 00 Frozen Binary Counter Change Event Default Variation */
352 #define AL_OBJ_FCTRC_32 0x1701 /* 21 01 32-Bit Frozen Counter Change Event */
353 #define AL_OBJ_FCTRC_16 0x1702 /* 21 02 16-Bit Frozen Counter Change Event */
354 #define AL_OBJ_FDCTRC_32 0x1703 /* 21 03 32-Bit Frozen Delta Counter Change Event */
355 #define AL_OBJ_FDCTRC_16 0x1704 /* 21 04 16-Bit Frozen Delta Counter Change Event */
356 #define AL_OBJ_FCTRC_32T 0x1705 /* 21 05 32-Bit Frozen Counter Change Event w/ Time of Freeze */
357 #define AL_OBJ_FCTRC_16T 0x1706 /* 21 06 16-Bit Frozen Counter Change Event w/ Time of Freeze */
358 #define AL_OBJ_FDCTRC_32T 0x1707 /* 21 07 32-Bit Frozen Delta Counter Change Event w/ Time of Freeze */
359 #define AL_OBJ_FDCTRC_16T 0x1708 /* 21 08 16-Bit Frozen Delta Counter Change Event w/ Time of Freeze */
361 /* Counter Quality Flags */
362 #define AL_OBJ_CTR_FLAG0 0x0001 /* Point Online (0=Offline; 1=Online) */
363 #define AL_OBJ_CTR_FLAG1 0x0002 /* Restart (0=Normal; 1=Restart) */
364 #define AL_OBJ_CTR_FLAG2 0x0004 /* Comms Lost (0=Normal; 1=Lost) */
365 #define AL_OBJ_CTR_FLAG3 0x0008 /* Remote Force (0=Normal; 1=Forced) */
366 #define AL_OBJ_CTR_FLAG4 0x0010 /* Local Force (0=Normal; 1=Forced) */
367 #define AL_OBJ_CTR_FLAG5 0x0020 /* Roll-over (0=Normal; 1=Roll-Over) */
368 #define AL_OBJ_CTR_FLAG6 0x0040 /* Discontinuity (0=Normal; 1=Discontinuity) */
369 #define AL_OBJ_CTR_FLAG7 0x0080 /* Reserved */
371 /***************************************************************************/
372 /* Analog Input Objects */
373 #define AL_OBJ_AI_ALL 0x1E00 /* 30 00 Analog Input Default Variation */
374 #define AL_OBJ_AI_32 0x1E01 /* 30 01 32-Bit Analog Input */
375 #define AL_OBJ_AI_16 0x1E02 /* 30 02 16-Bit Analog Input */
376 #define AL_OBJ_AI_32NF 0x1E03 /* 30 03 32-Bit Analog Input Without Flag */
377 #define AL_OBJ_AI_16NF 0x1E04 /* 30 04 16-Bit Analog Input Without Flag */
378 #define AL_OBJ_AI_FLT 0x1E05 /* 30 05 32-Bit Floating Point Input */
379 #define AL_OBJ_AI_DBL 0x1E06 /* 30 06 64-Bit Floating Point Input */
380 /* 0x1F01 31 01 32-Bit Frozen Analog Input */
381 /* 0x1F02 31 02 16-Bit Frozen Analog Input */
382 /* 0x1F03 31 03 32-Bit Frozen Analog Input w/ Time of Freeze */
383 /* 0x1F04 31 04 16-Bit Frozen Analog Input w/ Time of Freeze */
384 /* 0x1F05 31 05 32-Bit Frozen Analog Input Without Flag */
385 /* 0x1F06 31 06 16-Bit Frozen Analog Input Without Flag */
386 #define AL_OBJ_AIF_FLT 0x1F07 /* 31 07 32-Bit Frozen Floating Point Input */
387 #define AL_OBJ_AIF_DBL 0x1F08 /* 31 08 64-Bit Frozen Floating Point Input */
388 #define AL_OBJ_AIC_ALL 0x2000 /* 32 00 Analog Input Change Default Variation */
389 #define AL_OBJ_AIC_32NT 0x2001 /* 32 01 32-Bit Analog Change Event w/o Time */
390 #define AL_OBJ_AIC_16NT 0x2002 /* 32 02 16-Bit Analog Change Event w/o Time */
391 #define AL_OBJ_AIC_32T 0x2003 /* 32 03 32-Bit Analog Change Event w/ Time */
392 #define AL_OBJ_AIC_16T 0x2004 /* 32 04 16-Bit Analog Change Event w/ Time */
393 #define AL_OBJ_AIC_FLTNT 0x2005 /* 32 05 32-Bit Floating Point Change Event w/o Time*/
394 #define AL_OBJ_AIC_DBLNT 0x2006 /* 32 06 64-Bit Floating Point Change Event w/o Time*/
395 #define AL_OBJ_AIC_FLTT 0x2007 /* 32 07 32-Bit Floating Point Change Event w/ Time*/
396 #define AL_OBJ_AIC_DBLT 0x2008 /* 32 08 64-Bit Floating Point Change Event w/ Time*/
397 /* 0x2101 33 01 32-Bit Frozen Analog Event w/o Time */
398 /* 0x2102 33 02 16-Bit Frozen Analog Event w/o Time */
399 /* 0x2103 33 03 32-Bit Frozen Analog Event w/ Time */
400 /* 0x2104 33 04 16-Bit Frozen Analog Event w/ Time */
401 #define AL_OBJ_AIFC_FLTNT 0x2105 /* 33 05 32-Bit Floating Point Frozen Change Event w/o Time*/
402 #define AL_OBJ_AIFC_DBLNT 0x2106 /* 33 06 64-Bit Floating Point Frozen Change Event w/o Time*/
403 #define AL_OBJ_AIFC_FLTT 0x2107 /* 33 07 32-Bit Floating Point Frozen Change Event w/ Time*/
404 #define AL_OBJ_AIFC_DBLT 0x2108 /* 33 08 64-Bit Floating Point Frozen Change Event w/ Time*/
407 /* Analog Input Quality Flags */
408 #define AL_OBJ_AI_FLAG0 0x0001 /* Point Online (0=Offline; 1=Online) */
409 #define AL_OBJ_AI_FLAG1 0x0002 /* Restart (0=Normal; 1=Restart) */
410 #define AL_OBJ_AI_FLAG2 0x0004 /* Comms Lost (0=Normal; 1=Lost) */
411 #define AL_OBJ_AI_FLAG3 0x0008 /* Remote Force (0=Normal; 1=Forced) */
412 #define AL_OBJ_AI_FLAG4 0x0010 /* Local Force (0=Normal; 1=Forced) */
413 #define AL_OBJ_AI_FLAG5 0x0020 /* Over-Range (0=Normal; 1=Over-Range) */
414 #define AL_OBJ_AI_FLAG6 0x0040 /* Reference Check (0=Normal; 1=Error) */
415 #define AL_OBJ_AI_FLAG7 0x0080 /* Reserved */
417 /***************************************************************************/
418 /* Analog Output Objects */
419 #define AL_OBJ_AO_ALL 0x2800 /* 40 00 Analog Output Default Variation */
420 #define AL_OBJ_AO_32 0x2801 /* 40 01 32-Bit Analog Output Status */
421 #define AL_OBJ_AO_16 0x2802 /* 40 02 16-Bit Analog Output Status */
422 #define AL_OBJ_AO_FLT 0x2803 /* 40 03 32-Bit Floating Point Output Status */
423 #define AL_OBJ_AO_DBL 0x2804 /* 40 04 64-Bit Floating Point Output Status */
424 #define AL_OBJ_AO_32OPB 0x2901 /* 41 01 32-Bit Analog Output Block */
425 #define AL_OBJ_AO_16OPB 0x2902 /* 41 02 16-Bit Analog Output Block */
426 #define AL_OBJ_AO_FLTOPB 0x2903 /* 41 03 32-Bit Floating Point Output Block */
427 #define AL_OBJ_AO_DBLOPB 0x2904 /* 41 04 64-Bit Floating Point Output Block */
429 /* Analog Output Quality Flags */
430 #define AL_OBJ_AO_FLAG0 0x0001 /* Point Online (0=Offline; 1=Online) */
431 #define AL_OBJ_AO_FLAG1 0x0002 /* Restart (0=Normal; 1=Restart) */
432 #define AL_OBJ_AO_FLAG2 0x0004 /* Comms Lost (0=Normal; 1=Lost) */
433 #define AL_OBJ_AO_FLAG3 0x0008 /* Remote Force (0=Normal; 1=Forced) */
434 #define AL_OBJ_AO_FLAG4 0x0010 /* Local Force (0=Normal; 1=Forced) */
435 #define AL_OBJ_AO_FLAG5 0x0020 /* Reserved */
436 #define AL_OBJ_AO_FLAG6 0x0040 /* Reserved */
437 #define AL_OBJ_AO_FLAG7 0x0080 /* Reserved */
439 /***************************************************************************/
441 #define AL_OBJ_TD_ALL 0x3200 /* 50 00 Time and Date Default Variation */
442 #define AL_OBJ_TD 0x3201 /* 50 01 Time and Date */
443 #define AL_OBJ_TDI 0x3202 /* 50 02 Time and Date w/ Interval */
444 #define AL_OBJ_TDR 0x3203 /* 50 03 Last Recorded Time and Date */
445 #define AL_OBJ_TDCTO 0x3301 /* 51 01 Time and Date CTO */
446 #define AL_OBJ_UTDCTO 0x3302 /* 51 02 Unsynchronized Time and Date CTO */
447 #define AL_OBJ_TDELAYC 0x3401 /* 52 01 Time Delay Coarse */
448 #define AL_OBJ_TDELAYF 0x3402 /* 52 02 Time Delay Fine */
450 /***************************************************************************/
451 /* Class Data Objects */
452 #define AL_OBJ_CLASS0 0x3C01 /* 60 01 Class 0 Data */
453 #define AL_OBJ_CLASS1 0x3C02 /* 60 02 Class 1 Data */
454 #define AL_OBJ_CLASS2 0x3C03 /* 60 03 Class 2 Data */
455 #define AL_OBJ_CLASS3 0x3C04 /* 60 04 Class 3 Data */
457 /***************************************************************************/
459 #define AL_OBJ_IIN 0x5001 /* 80 01 Internal Indications */
461 /***************************************************************************/
462 /* Octet String Objects */
463 #define AL_OBJ_OCT 0x6E00 /* 110 xx Octet string */
465 /***************************************************************************/
466 /* End of Application Layer Data Object Definitions */
467 /***************************************************************************/
469 /* Initialize the protocol and registered fields */
470 static int proto_dnp3 = -1;
471 static int hf_dnp3_start = -1;
472 static int hf_dnp3_len = -1;
473 static int hf_dnp3_ctl = -1;
474 static int hf_dnp3_ctl_prifunc = -1;
475 static int hf_dnp3_ctl_secfunc = -1;
476 static int hf_dnp3_ctl_dir = -1;
477 static int hf_dnp3_ctl_prm = -1;
478 static int hf_dnp3_ctl_fcb = -1;
479 static int hf_dnp3_ctl_fcv = -1;
480 static int hf_dnp3_ctl_dfc = -1;
481 static int hf_dnp3_dst = -1;
482 static int hf_dnp3_src = -1;
483 static int hf_dnp_hdr_CRC = -1;
484 static int hf_dnp_hdr_CRC_bad = -1;
485 static int hf_dnp3_tr_ctl = -1;
486 static int hf_dnp3_tr_fin = -1;
487 static int hf_dnp3_tr_fir = -1;
488 static int hf_dnp3_tr_seq = -1;
489 static int hf_dnp3_al_ctl = -1;
490 static int hf_dnp3_al_fir = -1;
491 static int hf_dnp3_al_fin = -1;
492 static int hf_dnp3_al_con = -1;
493 static int hf_dnp3_al_uns = -1;
494 static int hf_dnp3_al_seq = -1;
495 static int hf_dnp3_al_func = -1;
496 /* Added for Application Layer Decoding */
497 static int hf_dnp3_al_iin = -1;
498 static int hf_dnp3_al_iin_bmsg = -1;
499 static int hf_dnp3_al_iin_cls1d = -1;
500 static int hf_dnp3_al_iin_cls2d = -1;
501 static int hf_dnp3_al_iin_cls3d = -1;
502 static int hf_dnp3_al_iin_tsr = -1;
503 static int hf_dnp3_al_iin_dol = -1;
504 static int hf_dnp3_al_iin_dt = -1;
505 static int hf_dnp3_al_iin_rst = -1;
506 static int hf_dnp3_al_iin_obju = -1;
507 static int hf_dnp3_al_iin_pioor = -1;
508 static int hf_dnp3_al_iin_ebo = -1;
509 static int hf_dnp3_al_iin_oae = -1;
510 static int hf_dnp3_al_iin_cc = -1;
511 static int hf_dnp3_al_obj = -1;
512 static int hf_dnp3_al_objq_index = -1;
513 static int hf_dnp3_al_objq_code = -1;
514 static int hf_dnp3_al_range_start8 = -1;
515 static int hf_dnp3_al_range_stop8 = -1;
516 static int hf_dnp3_al_range_start16 = -1;
517 static int hf_dnp3_al_range_stop16 = -1;
518 static int hf_dnp3_al_range_start32 = -1;
519 static int hf_dnp3_al_range_stop32 = -1;
520 static int hf_dnp3_al_range_abs8 = -1;
521 static int hf_dnp3_al_range_abs16 = -1;
522 static int hf_dnp3_al_range_abs32 = -1;
523 static int hf_dnp3_al_range_quant8 = -1;
524 static int hf_dnp3_al_range_quant16 = -1;
525 static int hf_dnp3_al_range_quant32 = -1;
526 static int hf_dnp3_al_index8 = -1;
527 static int hf_dnp3_al_index16 = -1;
528 static int hf_dnp3_al_index32 = -1;
530 /*static int hf_dnp3_al_objq = -1;
531 static int hf_dnp3_al_nobj = -1; */
532 static int hf_dnp3_al_ptnum = -1;
533 static int hf_dnp3_al_biq_b0 = -1;
534 static int hf_dnp3_al_biq_b1 = -1;
535 static int hf_dnp3_al_biq_b2 = -1;
536 static int hf_dnp3_al_biq_b3 = -1;
537 static int hf_dnp3_al_biq_b4 = -1;
538 static int hf_dnp3_al_biq_b5 = -1;
539 static int hf_dnp3_al_biq_b6 = -1;
540 static int hf_dnp3_al_biq_b7 = -1;
541 static int hf_dnp3_al_boq_b0 = -1;
542 static int hf_dnp3_al_boq_b1 = -1;
543 static int hf_dnp3_al_boq_b2 = -1;
544 static int hf_dnp3_al_boq_b3 = -1;
545 static int hf_dnp3_al_boq_b4 = -1;
546 static int hf_dnp3_al_boq_b5 = -1;
547 static int hf_dnp3_al_boq_b6 = -1;
548 static int hf_dnp3_al_boq_b7 = -1;
549 static int hf_dnp3_al_ctrq_b0 = -1;
550 static int hf_dnp3_al_ctrq_b1 = -1;
551 static int hf_dnp3_al_ctrq_b2 = -1;
552 static int hf_dnp3_al_ctrq_b3 = -1;
553 static int hf_dnp3_al_ctrq_b4 = -1;
554 static int hf_dnp3_al_ctrq_b5 = -1;
555 static int hf_dnp3_al_ctrq_b6 = -1;
556 static int hf_dnp3_al_ctrq_b7 = -1;
557 static int hf_dnp3_al_aiq_b0 = -1;
558 static int hf_dnp3_al_aiq_b1 = -1;
559 static int hf_dnp3_al_aiq_b2 = -1;
560 static int hf_dnp3_al_aiq_b3 = -1;
561 static int hf_dnp3_al_aiq_b4 = -1;
562 static int hf_dnp3_al_aiq_b5 = -1;
563 static int hf_dnp3_al_aiq_b6 = -1;
564 static int hf_dnp3_al_aiq_b7 = -1;
565 static int hf_dnp3_al_aoq_b0 = -1;
566 static int hf_dnp3_al_aoq_b1 = -1;
567 static int hf_dnp3_al_aoq_b2 = -1;
568 static int hf_dnp3_al_aoq_b3 = -1;
569 static int hf_dnp3_al_aoq_b4 = -1;
570 static int hf_dnp3_al_aoq_b5 = -1;
571 static int hf_dnp3_al_aoq_b6 = -1;
572 static int hf_dnp3_al_aoq_b7 = -1;
573 static int hf_dnp3_al_timestamp = -1;
574 static int hf_dnp3_al_rel_timestamp = -1;
575 static int hf_dnp3_al_ana16 = -1;
576 static int hf_dnp3_al_ana32 = -1;
577 static int hf_dnp3_al_anaflt = -1;
578 static int hf_dnp3_al_anadbl = -1;
579 static int hf_dnp3_al_bit = -1;
580 static int hf_dnp3_al_2bit = -1;
581 static int hf_dnp3_al_cnt16 = -1;
582 static int hf_dnp3_al_cnt32 = -1;
583 static int hf_dnp3_al_ctrlstatus = -1;
584 static int hf_dnp3_al_anaout16 = -1;
585 static int hf_dnp3_al_anaout32 = -1;
586 static int hf_dnp3_al_anaoutflt = -1;
587 static int hf_dnp3_al_anaoutdbl = -1;
589 /***************************************************************************/
590 /* Value String Look-Ups */
591 /***************************************************************************/
592 static const value_string dnp3_ctl_func_pri_vals[] = {
593 { DL_FUNC_RESET_LINK, "Reset of Remote Link" },
594 { DL_FUNC_RESET_PROC, "Reset of User Process" },
595 { DL_FUNC_TEST_LINK, "Test Function For Link" },
596 { DL_FUNC_USER_DATA, "User Data" },
597 { DL_FUNC_UNC_DATA, "Unconfirmed User Data" },
598 { DL_FUNC_LINK_STAT, "Request Link Status" },
602 static const value_string dnp3_ctl_func_sec_vals[] = {
603 { DL_FUNC_ACK, "ACK" },
604 { DL_FUNC_NACK, "NACK" },
605 { DL_FUNC_STAT_LINK, "Status of Link" },
606 { DL_FUNC_NO_FUNC, "Link Service Not Functioning" },
607 { DL_FUNC_NOT_IMPL, "Link Service Not Used or Implemented" },
611 static const value_string dnp3_ctl_flags_pri_vals[] _U_ = {
612 { DNP3_CTL_DIR, "DIR" },
613 { DNP3_CTL_PRM, "PRM" },
614 { DNP3_CTL_FCB, "FCB" },
615 { DNP3_CTL_FCV, "FCV" },
619 static const value_string dnp3_ctl_flags_sec_vals[] _U_ = {
620 { DNP3_CTL_DIR, "DIR" },
621 { DNP3_CTL_PRM, "PRM" },
622 { DNP3_CTL_RES, "RES" },
623 { DNP3_CTL_DFC, "DFC" },
627 static const value_string dnp3_tr_flags_vals[] _U_ = {
628 { DNP3_TR_FIN, "FIN" },
629 { DNP3_TR_FIR, "FIR" },
633 static const value_string dnp3_al_flags_vals[] _U_ = {
634 { DNP3_AL_FIR, "FIR" },
635 { DNP3_AL_FIN, "FIN" },
636 { DNP3_AL_CON, "CON" },
640 /* Application Layer Function Code Values */
641 static const value_string dnp3_al_func_vals[] = {
642 { AL_FUNC_CONFIRM, "Confirm" },
643 { AL_FUNC_READ, "Read" },
644 { AL_FUNC_WRITE, "Write" },
645 { AL_FUNC_SELECT, "Select" },
646 { AL_FUNC_OPERATE, "Operate" },
647 { AL_FUNC_DIROP, "Direct Operate" },
648 { AL_FUNC_DIROPNACK, "Direct Operate No Ack" },
649 { AL_FUNC_FRZ, "Immediate Freeze" },
650 { AL_FUNC_FRZNACK, "Immediate Freeze No Ack" },
651 { AL_FUNC_FRZCLR, "Freeze and Clear" },
652 { AL_FUNC_FRZCLRNACK, "Freeze and Clear No ACK" },
653 { AL_FUNC_FRZT, "Freeze With Time" },
654 { AL_FUNC_FRZTNACK, "Freeze With Time No ACK" },
655 { AL_FUNC_COLDRST, "Cold Restart" },
656 { AL_FUNC_WARMRST, "Warm Restart" },
657 { AL_FUNC_INITDATA, "Initialize Data" },
658 { AL_FUNC_INITAPP, "Initialize Application" },
659 { AL_FUNC_STARTAPP, "Start Application" },
660 { AL_FUNC_STOPAPP, "Stop Application" },
661 { AL_FUNC_SAVECFG, "Save Configuration" },
662 { AL_FUNC_ENSPMSG, "Enable Spontaneous Messages" },
663 { AL_FUNC_DISSPMSG, "Disable Spontaneous Messages" },
664 { AL_FUNC_ASSIGNCL, "Assign Classes" },
665 { AL_FUNC_DELAYMST, "Delay Measurement" },
666 { AL_FUNC_RECCT, "Record Current Time" },
667 { AL_FUNC_OPENFILE, "Open File" },
668 { AL_FUNC_CLOSEFILE, "Close File" },
669 { AL_FUNC_DELETEFILE, "Delete File" },
670 { AL_FUNC_GETFILEINF, "Get File Info" },
671 { AL_FUNC_AUTHFILE, "Authenticate File" },
672 { AL_FUNC_ABORTFILE, "Abort File" },
673 { AL_FUNC_ACTCNF, "Activate Config" },
674 { AL_FUNC_AUTHREQ, "Authentication Request" },
675 { AL_FUNC_AUTHERR, "Authentication Error" },
676 { AL_FUNC_RESPON, "Response" },
677 { AL_FUNC_UNSOLI, "Unsolicited Response" },
678 { AL_FUNC_AUTHRESP, "Authentication Response" },
682 /* Application Layer Internal Indication (IIN) bit Values */
683 static const value_string dnp3_al_iin_vals[] _U_ = {
684 { AL_IIN_BMSG, "Broadcast message Rx'd" },
685 { AL_IIN_CLS1D, "Class 1 Data Available" },
686 { AL_IIN_CLS2D, "Class 2 Data Available" },
687 { AL_IIN_CLS3D, "Class 3 Data Available" },
688 { AL_IIN_TSR, "Time Sync Required from Master" },
689 { AL_IIN_DOL, "Digital Outputs in Local Mode" },
690 { AL_IIN_DT, "Device Trouble" },
691 { AL_IIN_RST, "Device Restart" },
692 { AL_IIN_OBJU, "Requested Objects Unknown" },
693 { AL_IIN_PIOOR, "Parameters Invalid or Out of Range" },
694 { AL_IIN_EBO, "Event Buffer Overflow" },
695 { AL_IIN_OAE, "Operation Already Executing" },
696 { AL_IIN_CC, "Device Configuration Corrupt" },
700 /* Application Layer Object Qualifier Index Values When Qualifier Code != 11 */
701 static const value_string dnp3_al_objq_index_vals[] = {
702 { AL_OBJQL_IDX_NI, "None" },
703 { AL_OBJQL_IDX_1O, "1-Octet Indexing" },
704 { AL_OBJQL_IDX_2O, "2-Octet Indexing" },
705 { AL_OBJQL_IDX_4O, "4-Octet Indexing" },
706 { AL_OBJQL_IDX_1OS, "1-Octet Object Size" },
707 { AL_OBJQL_IDX_2OS, "2-Octet Object Size" },
708 { AL_OBJQL_IDX_4OS, "4-Octet Object Size" },
712 /* Application Layer Object Qualifier Code Values */
713 static const value_string dnp3_al_objq_code_vals[] = {
714 { AL_OBJQL_CODE_SSI8, "8-bit Start and Stop Indices" },
715 { AL_OBJQL_CODE_SSI16, "16-bit Start and Stop Indices" },
716 { AL_OBJQL_CODE_SSI32, "32-bit Start and Stop Indices" },
717 { AL_OBJQL_CODE_AA8, "8-bit Absolute Address in Range Field" },
718 { AL_OBJQL_CODE_AA16, "16-bit Absolute Address in Range Field" },
719 { AL_OBJQL_CODE_AA32, "32-bit Absolute Address in Range Field" },
720 { AL_OBJQL_CODE_R0, "No Range Field" },
721 { AL_OBJQL_CODE_SF8, "8-bit Single Field Quantity" },
722 { AL_OBJQL_CODE_SF16, "16-bit Single Field Quantity" },
723 { AL_OBJQL_CODE_SF32, "32-bit Single Field Quantity" },
724 { AL_OBJQL_CODE_FF, "Free-format Qualifier" },
728 /* Application Layer Data Object Values */
729 static const value_string dnp3_al_obj_vals[] = {
730 { AL_OBJ_BI_ALL, "Binary Input Default Variation (Obj:01, Var:Default)" },
731 { AL_OBJ_BI_1BIT, "Single-Bit Binary Input (Obj:01, Var:01)" },
732 { AL_OBJ_BI_STAT, "Binary Input With Status (Obj:01, Var:02)" },
733 { AL_OBJ_BIC_ALL, "Binary Input Change Default Variation (Obj:02, Var:Default)" },
734 { AL_OBJ_BIC_NOTIME, "Binary Input Change Without Time (Obj:02, Var:01)" },
735 { AL_OBJ_BIC_TIME, "Binary Input Change With Time (Obj:02, Var:02)" },
736 { AL_OBJ_BIC_RTIME, "Binary Input Change With Relative Time (Obj:02, Var:03)" },
737 { AL_OBJ_2BI_ALL, "Double-bit Input Default Variation (Obj:03, Var:Default)" },
738 { AL_OBJ_2BI_NF, "Double-bit Input No Flags (Obj:03, Var:01)" },
739 { AL_OBJ_2BI_STAT, "Double-bit Input With Status (Obj:03, Var:02)" },
740 { AL_OBJ_2BIC_NOTIME, "Double-bit Input Change Without Time (Obj:04, Var:01)" },
741 { AL_OBJ_2BIC_TIME, "Double-bit Input Change With Time (Obj:04, Var:02)" },
742 { AL_OBJ_2BIC_RTIME, "Double-bit Input Change With Relative Time (Obj:04, Var:03)" },
743 { AL_OBJ_BO_ALL, "Binary Output Default Variation (Obj:10, Var:Default)" },
744 { AL_OBJ_BO, "Binary Output (Obj:10, Var:01)" },
745 { AL_OBJ_BO_STAT, "Binary Output Status (Obj:10, Var:02)" },
746 { AL_OBJ_CTLOP_BLK, "Control Relay Output Block (Obj:12, Var:01)" },
747 { AL_OBJ_CTR_ALL, "Binary Counter Default Variation (Obj:20, Var:Default)" },
748 { AL_OBJ_CTR_32, "32-Bit Binary Counter (Obj:20, Var:01)" },
749 { AL_OBJ_CTR_16, "16-Bit Binary Counter (Obj:20, Var:02)" },
750 { AL_OBJ_DCTR_32, "32-Bit Binary Delta Counter (Obj:20, Var:03)" },
751 { AL_OBJ_DCTR_16, "16-Bit Binary Delta Counter (Obj:20, Var:04)" },
752 { AL_OBJ_CTR_32NF, "32-Bit Binary Counter Without Flag (Obj:20, Var:05)" },
753 { AL_OBJ_CTR_16NF, "16-Bit Binary Counter Without Flag (Obj:20, Var:06)" },
754 { AL_OBJ_DCTR_32NF, "32-Bit Binary Delta Counter Without Flag (Obj:20, Var:07)" },
755 { AL_OBJ_DCTR_16NF, "16-Bit Binary Delta Counter Without Flag (Obj:20, Var:08)" },
756 { AL_OBJ_FCTR_ALL, "Frozen Binary Counter Default Variation (Obj:21, Var:Default)" },
757 { AL_OBJ_FCTR_32, "32-Bit Frozen Binary Counter (Obj:21, Var:01)" },
758 { AL_OBJ_FCTR_16, "16-Bit Frozen Binary Counter (Obj:21, Var:02)" },
759 { AL_OBJ_FDCTR_32, "32-Bit Frozen Binary Delta Counter (Obj:21, Var:03)" },
760 { AL_OBJ_FDCTR_16, "16-Bit Frozen Binary Delta Counter (Obj:21, Var:04)" },
761 { AL_OBJ_FCTR_32T, "32-Bit Frozen Binary Counter (Obj:21, Var:01)" },
762 { AL_OBJ_FCTR_16T, "16-Bit Frozen Binary Counter (Obj:21, Var:02)" },
763 { AL_OBJ_FDCTR_32T, "32-Bit Frozen Binary Delta Counter (Obj:21, Var:03)" },
764 { AL_OBJ_FDCTR_16T, "16-Bit Frozen Binary Delta Counter (Obj:21, Var:04)" },
765 { AL_OBJ_FCTR_32NF, "32-Bit Frozen Binary Counter Without Flag (Obj:21, Var:05)" },
766 { AL_OBJ_FCTR_16NF, "16-Bit Frozen Binary Counter Without Flag (Obj:21, Var:06)" },
767 { AL_OBJ_FDCTR_32NF, "32-Bit Frozen Binary Delta Counter Without Flag (Obj:21, Var:07)" },
768 { AL_OBJ_FDCTR_16NF, "16-Bit Frozen Binary Delta Counter Without Flag (Obj:21, Var:08)" },
769 { AL_OBJ_CTRC_ALL, "Binary Counter Change Default Variation (Obj:22, Var:Default)" },
770 { AL_OBJ_CTRC_32, "32-Bit Counter Change Event w/o Time (Obj:22, Var:01)" },
771 { AL_OBJ_CTRC_16, "16-Bit Counter Change Event w/o Time (Obj:22, Var:02)" },
772 { AL_OBJ_DCTRC_32, "32-Bit Delta Counter Change Event w/o Time (Obj:22, Var:03)" },
773 { AL_OBJ_DCTRC_16, "16-Bit Delta Counter Change Event w/o Time (Obj:22, Var:04)" },
774 { AL_OBJ_CTRC_32T, "32-Bit Counter Change Event with Time (Obj:22, Var:05)" },
775 { AL_OBJ_CTRC_16T, "16-Bit Counter Change Event with Time (Obj:22, Var:06)" },
776 { AL_OBJ_DCTRC_32T, "32-Bit Delta Counter Change Event with Time (Obj:22, Var:07)" },
777 { AL_OBJ_DCTRC_16T, "16-Bit Delta Counter Change Event with Time (Obj:22, Var:08)" },
778 { AL_OBJ_FCTRC_ALL, "Frozen Binary Counter Change Default Variation (Obj:23, Var:Default)" },
779 { AL_OBJ_FCTRC_32, "32-Bit Frozen Counter Change Event w/o Time (Obj:23, Var:01)" },
780 { AL_OBJ_FCTRC_16, "16-Bit Frozen Counter Change Event w/o Time (Obj:23, Var:02)" },
781 { AL_OBJ_FDCTRC_32, "32-Bit Frozen Delta Counter Change Event w/o Time (Obj:23, Var:03)" },
782 { AL_OBJ_FDCTRC_16, "16-Bit Frozen Delta Counter Change Event w/o Time (Obj:23, Var:04)" },
783 { AL_OBJ_FCTRC_32T, "32-Bit Frozen Counter Change Event with Time (Obj:23, Var:05)" },
784 { AL_OBJ_FCTRC_16T, "16-Bit Frozen Counter Change Event with Time (Obj:23, Var:06)" },
785 { AL_OBJ_FDCTRC_32T, "32-Bit Frozen Delta Counter Change Event with Time (Obj:23, Var:07)" },
786 { AL_OBJ_FDCTRC_16T, "16-Bit Frozen Delta Counter Change Event with Time (Obj:23, Var:08)" },
787 { AL_OBJ_AI_ALL, "Analog Input Default Variation (Obj:30, Var:Default)" },
788 { AL_OBJ_AI_32, "32-Bit Analog Input (Obj:30, Var:01)" },
789 { AL_OBJ_AI_16, "16-Bit Analog Input (Obj:30, Var:02)" },
790 { AL_OBJ_AI_32NF, "32-Bit Analog Input Without Flag (Obj:30, Var:03)" },
791 { AL_OBJ_AI_16NF, "16-Bit Analog Input Without Flag (Obj:30, Var:04)" },
792 { AL_OBJ_AI_FLT, "32-Bit Floating Point Input (Obj:30, Var:05)" },
793 { AL_OBJ_AI_DBL, "64-Bit Floating Point Input (Obj:30, Var:06)" },
794 { AL_OBJ_AIF_FLT, "32-Bit Frozen Floating Point Input (Obj:31, Var:07)" },
795 { AL_OBJ_AIF_DBL, "64-Bit Frozen Floating Point Input (Obj:31, Var:08)" },
796 { AL_OBJ_AIC_ALL, "Analog Input Change Default Variation (Obj:32, Var:Default)" },
797 { AL_OBJ_AIC_32NT, "32-Bit Analog Change Event w/o Time (Obj:32, Var:01)" },
798 { AL_OBJ_AIC_16NT, "16-Bit Analog Change Event w/o Time (Obj:32, Var:02)" },
799 { AL_OBJ_AIC_32T, "32-Bit Analog Change Event with Time (Obj:32, Var:03)" },
800 { AL_OBJ_AIC_16T, "16-Bit Analog Change Event with Time (Obj:32, Var:04)" },
801 { AL_OBJ_AIC_FLTNT, "32-Bit Floating Point Change Event w/o Time (Obj:32, Var:05)" },
802 { AL_OBJ_AIC_DBLNT, "64-Bit Floating Point Change Event w/o Time (Obj:32, Var:06)" },
803 { AL_OBJ_AIC_FLTT, "32-Bit Floating Point Change Event w/ Time (Obj:32, Var:07)" },
804 { AL_OBJ_AIC_DBLT, "64-Bit Floating Point Change Event w/ Time (Obj:32, Var:08)" },
805 { AL_OBJ_AIFC_FLTNT, "32-Bit Floating Point Frozen Change Event w/o Time (Obj:33, Var:05)" },
806 { AL_OBJ_AIFC_DBLNT, "64-Bit Floating Point Frozen Change Event w/o Time (Obj:33, Var:06)" },
807 { AL_OBJ_AIFC_FLTT, "32-Bit Floating Point Frozen Change Event w/ Time (Obj:33, Var:07)" },
808 { AL_OBJ_AIFC_DBLT, "64-Bit Floating Point Frozen Change Event w/ Time (Obj:33, Var:08)" },
809 { AL_OBJ_AO_ALL, "Analog Output Default Variation (Obj:40, Var:Default)" },
810 { AL_OBJ_AO_32, "32-Bit Analog Output Status (Obj:40, Var:01)" },
811 { AL_OBJ_AO_16, "16-Bit Analog Output Status (Obj:40, Var:02)" },
812 { AL_OBJ_AO_FLT, "32-Bit Floating Point Output Status (Obj:40, Var:03)" },
813 { AL_OBJ_AO_DBL, "64-Bit Floating Point Output Status (Obj:40, Var:04)" },
814 { AL_OBJ_AO_32OPB, "32-Bit Analog Output Block (Obj:41, Var:01)" },
815 { AL_OBJ_AO_16OPB, "16-Bit Analog Output Block (Obj:41, Var:02)" },
816 { AL_OBJ_AO_FLTOPB, "32-Bit Floating Point Output Block (Obj:41, Var:03)" },
817 { AL_OBJ_AO_DBLOPB, "64-Bit Floating Point Output Block (Obj:41, Var:04)" },
818 { AL_OBJ_TD_ALL, "Time and Date Default Variations (Obj:50, Var:Default)" },
819 { AL_OBJ_TD, "Time and Date (Obj:50, Var:01)" },
820 { AL_OBJ_TDI, "Time and Date w/Interval (Obj:50, Var:02)" },
821 { AL_OBJ_TDR, "Last Recorded Time and Date (Obj:50, Var:03)" },
822 { AL_OBJ_TDCTO, "Time and Date CTO (Obj:51, Var:01)" },
823 { AL_OBJ_TDELAYF, "Time Delay - Fine (Obj:52, Var:02)" },
824 { AL_OBJ_CLASS0, "Class 0 Data (Obj:60, Var:01)" },
825 { AL_OBJ_CLASS1, "Class 1 Data (Obj:60, Var:02)" },
826 { AL_OBJ_CLASS2, "Class 2 Data (Obj:60, Var:03)" },
827 { AL_OBJ_CLASS3, "Class 3 Data (Obj:60, Var:04)" },
828 { AL_OBJ_IIN, "Internal Indications (Obj:80, Var:01)" },
829 { AL_OBJ_OCT, "Octet String (Obj:110)" },
833 /* Application Layer Control Code 'Code' Values */
834 static const value_string dnp3_al_ctlc_code_vals[] = {
835 { AL_OBJCTLC_CODE0, "NUL Operation" },
836 { AL_OBJCTLC_CODE1, "Pulse On" },
837 { AL_OBJCTLC_CODE2, "Pulse Off" },
838 { AL_OBJCTLC_CODE3, "Latch On" },
839 { AL_OBJCTLC_CODE4, "Latch Off" },
843 /* Application Layer Control Code 'Misc' Values */
844 static const value_string dnp3_al_ctlc_misc_vals[] = {
845 { AL_OBJCTLC_QUEUE, "Queue" },
846 { AL_OBJCTLC_CLEAR, "Clear" },
850 /* Application Layer Control Code 'Trip/Close' Values */
851 static const value_string dnp3_al_ctlc_tc_vals[] = {
852 { AL_OBJCTLC_TC0, "NUL" },
853 { AL_OBJCTLC_TC1, "Close" },
854 { AL_OBJCTLC_TC2, "Trip" },
858 /* Application Layer Control Status Values */
859 static const value_string dnp3_al_ctl_status_vals[] = {
860 { AL_OBJCTL_STAT0, "Req. Accepted/Init/Queued" },
861 { AL_OBJCTL_STAT1, "Req. Not Accepted; Arm-Timer Expired" },
862 { AL_OBJCTL_STAT2, "Req. Not Accepted; No 'SELECT' Received" },
863 { AL_OBJCTL_STAT3, "Req. Not Accepted; Format Err. in Ctl Req." },
864 { AL_OBJCTL_STAT4, "Ctl Oper. Not Supported For This Point" },
865 { AL_OBJCTL_STAT5, "Req. Not Accepted; Ctrl Queue Full/Point Active" },
866 { AL_OBJCTL_STAT6, "Req. Not Accepted; Ctrl Hardware Problems" },
867 { AL_OBJCTL_STAT7, "Req. Not Accepted; Local/Remote switch in Local" },
868 { AL_OBJCTL_STAT8, "Req. Not Accepted; Too many operations" },
869 { AL_OBJCTL_STAT9, "Req. Not Accepted; Insufficient authorization" },
870 { AL_OBJCTL_STAT10, "Req. Not Accepted; Local automation proc active" },
874 /* Application Layer Binary Input Quality Flag Values */
875 static const value_string dnp3_al_biflag_vals[] _U_ = {
876 { AL_OBJ_BI_FLAG0, "Online" },
877 { AL_OBJ_BI_FLAG1, "Restart" },
878 { AL_OBJ_BI_FLAG2, "Comm Fail" },
879 { AL_OBJ_BI_FLAG3, "Remote Forced" },
880 { AL_OBJ_BI_FLAG4, "Locally Forced" },
881 { AL_OBJ_BI_FLAG5, "Chatter Filter" },
885 /* Application Layer Counter Quality Flag Values */
886 static const value_string dnp3_al_ctrflag_vals[] _U_ = {
887 { AL_OBJ_CTR_FLAG0, "Online" },
888 { AL_OBJ_CTR_FLAG1, "Restart" },
889 { AL_OBJ_CTR_FLAG2, "Comm Fail" },
890 { AL_OBJ_CTR_FLAG3, "Remote Forced" },
891 { AL_OBJ_CTR_FLAG4, "Locally Forced" },
892 { AL_OBJ_CTR_FLAG5, "Roll-Over" },
893 { AL_OBJ_CTR_FLAG6, "Discontinuity" },
897 /* Application Layer Analog Input Quality Flag Values */
898 static const value_string dnp3_al_aiflag_vals[] _U_ = {
899 { AL_OBJ_AI_FLAG0, "Online" },
900 { AL_OBJ_AI_FLAG1, "Restart" },
901 { AL_OBJ_AI_FLAG2, "Comm Fail" },
902 { AL_OBJ_AI_FLAG3, "Remote Forced" },
903 { AL_OBJ_AI_FLAG4, "Locally Forced" },
904 { AL_OBJ_AI_FLAG5, "Over-Range" },
905 { AL_OBJ_AI_FLAG6, "Ref. Error" },
909 /* Initialize the subtree pointers */
910 static gint ett_dnp3 = -1;
911 static gint ett_dnp3_dl = -1;
912 static gint ett_dnp3_dl_ctl = -1;
913 static gint ett_dnp3_tr_ctl = -1;
914 static gint ett_dnp3_al_data = -1;
915 static gint ett_dnp3_al = -1;
916 static gint ett_dnp3_al_ctl = -1;
918 /* Added for Application Layer Decoding */
919 static gint ett_dnp3_al_iin = -1;
920 static gint ett_dnp3_al_obj = -1;
921 static gint ett_dnp3_al_obj_qualifier = -1;
922 static gint ett_dnp3_al_obj_range = -1;
923 static gint ett_dnp3_al_objdet = -1;
924 static gint ett_dnp3_al_obj_quality = -1;
925 static gint ett_dnp3_al_obj_point = -1;
927 /* Tables for reassembly of fragments. */
928 static GHashTable *al_fragment_table = NULL;
929 static GHashTable *al_reassembled_table = NULL;
931 /* ************************************************************************* */
932 /* Header values for reassembly */
933 /* ************************************************************************* */
934 static int hf_dnp3_fragment = -1;
935 static int hf_dnp3_fragments = -1;
936 static int hf_dnp3_fragment_overlap = -1;
937 static int hf_dnp3_fragment_overlap_conflict = -1;
938 static int hf_dnp3_fragment_multiple_tails = -1;
939 static int hf_dnp3_fragment_too_long_fragment = -1;
940 static int hf_dnp3_fragment_error = -1;
941 static int hf_dnp3_fragment_reassembled_in = -1;
942 static gint ett_dnp3_fragment = -1;
943 static gint ett_dnp3_fragments = -1;
945 static const fragment_items dnp3_frag_items = {
950 &hf_dnp3_fragment_overlap,
951 &hf_dnp3_fragment_overlap_conflict,
952 &hf_dnp3_fragment_multiple_tails,
953 &hf_dnp3_fragment_too_long_fragment,
954 &hf_dnp3_fragment_error,
955 &hf_dnp3_fragment_reassembled_in,
959 /* Conversation stuff, used for tracking application message fragments */
960 /* the number of entries in the memory chunk array */
961 #define dnp3_conv_init_count 50
963 /* Conversation structure */
965 guint conv_seq_number;
968 /* The conversation sequence number */
969 static guint seq_number = 0;
971 /* desegmentation of DNP3 over TCP */
972 static gboolean dnp3_desegment = TRUE;
974 /* Enum for different quality type fields */
983 /*****************************************************************/
985 /* CRC LOOKUP TABLE */
986 /* ================ */
987 /* The following CRC lookup table was generated automagically */
988 /* by the Rocksoft^tm Model CRC Algorithm Table Generation */
989 /* Program V1.0 using the following model parameters: */
991 /* Width : 2 bytes. */
993 /* Reverse : TRUE. */
995 /* For more information on the Rocksoft^tm Model CRC Algorithm, */
996 /* see the document titled "A Painless Guide to CRC Error */
997 /* Detection Algorithms" by Ross Williams */
998 /* (ross@guest.adelaide.edu.au.). This document is likely to be */
999 /* in the FTP archive "ftp.adelaide.edu.au/pub/rocksoft". */
1001 /*****************************************************************/
1003 static guint16 crctable[256] =
1005 0x0000, 0x365E, 0x6CBC, 0x5AE2, 0xD978, 0xEF26, 0xB5C4, 0x839A,
1006 0xFF89, 0xC9D7, 0x9335, 0xA56B, 0x26F1, 0x10AF, 0x4A4D, 0x7C13,
1007 0xB26B, 0x8435, 0xDED7, 0xE889, 0x6B13, 0x5D4D, 0x07AF, 0x31F1,
1008 0x4DE2, 0x7BBC, 0x215E, 0x1700, 0x949A, 0xA2C4, 0xF826, 0xCE78,
1009 0x29AF, 0x1FF1, 0x4513, 0x734D, 0xF0D7, 0xC689, 0x9C6B, 0xAA35,
1010 0xD626, 0xE078, 0xBA9A, 0x8CC4, 0x0F5E, 0x3900, 0x63E2, 0x55BC,
1011 0x9BC4, 0xAD9A, 0xF778, 0xC126, 0x42BC, 0x74E2, 0x2E00, 0x185E,
1012 0x644D, 0x5213, 0x08F1, 0x3EAF, 0xBD35, 0x8B6B, 0xD189, 0xE7D7,
1013 0x535E, 0x6500, 0x3FE2, 0x09BC, 0x8A26, 0xBC78, 0xE69A, 0xD0C4,
1014 0xACD7, 0x9A89, 0xC06B, 0xF635, 0x75AF, 0x43F1, 0x1913, 0x2F4D,
1015 0xE135, 0xD76B, 0x8D89, 0xBBD7, 0x384D, 0x0E13, 0x54F1, 0x62AF,
1016 0x1EBC, 0x28E2, 0x7200, 0x445E, 0xC7C4, 0xF19A, 0xAB78, 0x9D26,
1017 0x7AF1, 0x4CAF, 0x164D, 0x2013, 0xA389, 0x95D7, 0xCF35, 0xF96B,
1018 0x8578, 0xB326, 0xE9C4, 0xDF9A, 0x5C00, 0x6A5E, 0x30BC, 0x06E2,
1019 0xC89A, 0xFEC4, 0xA426, 0x9278, 0x11E2, 0x27BC, 0x7D5E, 0x4B00,
1020 0x3713, 0x014D, 0x5BAF, 0x6DF1, 0xEE6B, 0xD835, 0x82D7, 0xB489,
1021 0xA6BC, 0x90E2, 0xCA00, 0xFC5E, 0x7FC4, 0x499A, 0x1378, 0x2526,
1022 0x5935, 0x6F6B, 0x3589, 0x03D7, 0x804D, 0xB613, 0xECF1, 0xDAAF,
1023 0x14D7, 0x2289, 0x786B, 0x4E35, 0xCDAF, 0xFBF1, 0xA113, 0x974D,
1024 0xEB5E, 0xDD00, 0x87E2, 0xB1BC, 0x3226, 0x0478, 0x5E9A, 0x68C4,
1025 0x8F13, 0xB94D, 0xE3AF, 0xD5F1, 0x566B, 0x6035, 0x3AD7, 0x0C89,
1026 0x709A, 0x46C4, 0x1C26, 0x2A78, 0xA9E2, 0x9FBC, 0xC55E, 0xF300,
1027 0x3D78, 0x0B26, 0x51C4, 0x679A, 0xE400, 0xD25E, 0x88BC, 0xBEE2,
1028 0xC2F1, 0xF4AF, 0xAE4D, 0x9813, 0x1B89, 0x2DD7, 0x7735, 0x416B,
1029 0xF5E2, 0xC3BC, 0x995E, 0xAF00, 0x2C9A, 0x1AC4, 0x4026, 0x7678,
1030 0x0A6B, 0x3C35, 0x66D7, 0x5089, 0xD313, 0xE54D, 0xBFAF, 0x89F1,
1031 0x4789, 0x71D7, 0x2B35, 0x1D6B, 0x9EF1, 0xA8AF, 0xF24D, 0xC413,
1032 0xB800, 0x8E5E, 0xD4BC, 0xE2E2, 0x6178, 0x5726, 0x0DC4, 0x3B9A,
1033 0xDC4D, 0xEA13, 0xB0F1, 0x86AF, 0x0535, 0x336B, 0x6989, 0x5FD7,
1034 0x23C4, 0x159A, 0x4F78, 0x7926, 0xFABC, 0xCCE2, 0x9600, 0xA05E,
1035 0x6E26, 0x5878, 0x029A, 0x34C4, 0xB75E, 0x8100, 0xDBE2, 0xEDBC,
1036 0x91AF, 0xA7F1, 0xFD13, 0xCB4D, 0x48D7, 0x7E89, 0x246B, 0x1235
1039 /*****************************************************************/
1040 /* End of CRC Lookup Table */
1041 /*****************************************************************/
1043 /* calculates crc given a buffer of characters and a length of buffer */
1045 calculateCRC(const void *buf, guint len) {
1047 const guint8 *p = (const guint8 *)buf;
1049 crc = crctable[(crc ^ *p++) & 0xff] ^ (crc >> 8);
1053 /*****************************************************************/
1054 /* Adds text to item, with trailing "," if required */
1055 /*****************************************************************/
1057 add_item_text(proto_item *item, const gchar *text, gboolean comma_needed)
1060 proto_item_append_text(item, ", ");
1062 proto_item_append_text(item, "%s", text);
1066 /*****************************************************************/
1067 /* Application Layer Process Internal Indications (IIN) */
1068 /*****************************************************************/
1070 dnp3_al_process_iin(tvbuff_t *tvb, int offset, proto_tree *al_tree)
1075 proto_tree *iin_tree = NULL;
1076 gboolean comma_needed = FALSE;
1078 al_iin = tvb_get_ntohs(tvb, offset);
1080 tiin = proto_tree_add_uint_format(al_tree, hf_dnp3_al_iin, tvb, offset, 2, al_iin,
1081 "Internal Indications: ");
1082 if (al_iin & AL_IIN_RST) comma_needed = add_item_text(tiin, "Device Restart", comma_needed);
1083 if (al_iin & AL_IIN_DOL) comma_needed = add_item_text(tiin, "Digital Outputs in Local", comma_needed);
1084 if (al_iin & AL_IIN_DT) comma_needed = add_item_text(tiin, "Device Trouble", comma_needed);
1085 if (al_iin & AL_IIN_TSR) comma_needed = add_item_text(tiin, "Time Sync Required", comma_needed);
1086 if (al_iin & AL_IIN_CLS3D) comma_needed = add_item_text(tiin, "Class 3 Data Available", comma_needed);
1087 if (al_iin & AL_IIN_CLS2D) comma_needed = add_item_text(tiin, "Class 2 Data Available", comma_needed);
1088 if (al_iin & AL_IIN_CLS1D) comma_needed = add_item_text(tiin, "Class 1 Data Available", comma_needed);
1089 if (al_iin & AL_IIN_BMSG) comma_needed = add_item_text(tiin, "Broadcast Message Rx'd", comma_needed);
1090 if (al_iin & AL_IIN_CC) comma_needed = add_item_text(tiin, "Device Configuration Corrupt", comma_needed);
1091 if (al_iin & AL_IIN_OAE) comma_needed = add_item_text(tiin, "Operation Already Executing", comma_needed);
1092 if (al_iin & AL_IIN_EBO) comma_needed = add_item_text(tiin, "Event Buffer Overflow", comma_needed);
1093 if (al_iin & AL_IIN_PIOOR) comma_needed = add_item_text(tiin, "Parameters Invalid or Out of Range", comma_needed);
1094 if (al_iin & AL_IIN_OBJU) comma_needed = add_item_text(tiin, "Requested Objects Unknown", comma_needed);
1095 proto_item_append_text(tiin, " (0x%04x)", al_iin);
1097 iin_tree = proto_item_add_subtree(tiin, ett_dnp3_al_iin);
1098 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_rst, tvb, offset, 2, FALSE);
1099 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_dt, tvb, offset, 2, FALSE);
1100 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_dol, tvb, offset, 2, FALSE);
1101 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_tsr, tvb, offset, 2, FALSE);
1102 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_cls3d, tvb, offset, 2, FALSE);
1103 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_cls2d, tvb, offset, 2, FALSE);
1104 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_cls1d, tvb, offset, 2, FALSE);
1105 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_bmsg, tvb, offset, 2, FALSE);
1106 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_cc, tvb, offset, 2, FALSE);
1107 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_oae, tvb, offset, 2, FALSE);
1108 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_ebo, tvb, offset, 2, FALSE);
1109 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_pioor, tvb, offset, 2, FALSE);
1110 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_obju, tvb, offset, 2, FALSE);
1113 /*****************************************************************/
1114 /* Function to determine Application Layer Object Index size and */
1115 /* Point address. */
1116 /*****************************************************************/
1118 dnp3_al_obj_procindex(tvbuff_t *tvb, int offset, guint8 al_objq_index, guint32 *al_ptaddr, proto_tree *item_tree)
1121 proto_item *index_item;
1123 switch (al_objq_index)
1125 case AL_OBJQL_IDX_NI: /* No Index */
1127 index_item = proto_tree_add_text(item_tree, tvb, offset, 0, "Point Index: %u", *al_ptaddr);
1128 PROTO_ITEM_SET_GENERATED(index_item);
1130 case AL_OBJQL_IDX_1O:
1131 *al_ptaddr = tvb_get_guint8(tvb, offset);
1132 proto_tree_add_item(item_tree, hf_dnp3_al_index8, tvb, offset, 1, TRUE);
1135 case AL_OBJQL_IDX_2O:
1136 *al_ptaddr = tvb_get_letohs(tvb, offset);
1137 proto_tree_add_item(item_tree, hf_dnp3_al_index16, tvb, offset, 2, TRUE);
1140 case AL_OBJQL_IDX_4O:
1141 *al_ptaddr = tvb_get_letohl(tvb, offset);
1142 proto_tree_add_item(item_tree, hf_dnp3_al_index32, tvb, offset, 4, TRUE);
1149 /*****************************************************************/
1150 /* Function to add the same string to two separate tree items */
1151 /*****************************************************************/
1153 dnp3_append_2item_text(proto_item *item1, proto_item *item2, const gchar *text)
1155 proto_item_append_text(item1, "%s", text);
1156 proto_item_append_text(item2, "%s", text);
1159 /*****************************************************************/
1160 /* Function to Determine Application Layer Point Quality Flags & */
1161 /* add Point Quality Flag Sub-Tree */
1162 /*****************************************************************/
1164 dnp3_al_obj_quality(tvbuff_t *tvb, int offset, guint8 al_ptflags, proto_tree *point_tree, proto_item *point_item, enum QUALITY_TYPE type)
1167 proto_tree *quality_tree = NULL;
1168 proto_item *quality_item;
1169 int hf0 = 0, hf1 = 0, hf2 = 0, hf3 = 0, hf4 = 0, hf5 = 0, hf6 = 0, hf7 = 0;
1172 proto_item_append_text(point_item, " (Quality: ");
1173 quality_item = proto_tree_add_text(point_tree, tvb, offset, 1, "Quality: ");
1174 quality_tree = proto_item_add_subtree(quality_item, ett_dnp3_al_obj_quality);
1176 if (al_ptflags & AL_OBJ_BI_FLAG0) {
1177 dnp3_append_2item_text(point_item, quality_item, "Online");
1180 dnp3_append_2item_text(point_item, quality_item, "Offline");
1182 if (al_ptflags & AL_OBJ_BI_FLAG1) dnp3_append_2item_text(point_item, quality_item, ", Restart");
1183 if (al_ptflags & AL_OBJ_BI_FLAG2) dnp3_append_2item_text(point_item, quality_item, ", Comm Fail");
1184 if (al_ptflags & AL_OBJ_BI_FLAG3) dnp3_append_2item_text(point_item, quality_item, ", Remote Force");
1185 if (al_ptflags & AL_OBJ_BI_FLAG4) dnp3_append_2item_text(point_item, quality_item, ", Local Force");
1188 case BIN_IN: /* Binary Input Quality flags */
1189 if (al_ptflags & AL_OBJ_BI_FLAG5) dnp3_append_2item_text(point_item, quality_item, ", Chatter Filter");
1191 hf0 = hf_dnp3_al_biq_b0;
1192 hf1 = hf_dnp3_al_biq_b1;
1193 hf2 = hf_dnp3_al_biq_b2;
1194 hf3 = hf_dnp3_al_biq_b3;
1195 hf4 = hf_dnp3_al_biq_b4;
1196 hf5 = hf_dnp3_al_biq_b5;
1197 hf6 = hf_dnp3_al_biq_b6;
1198 hf7 = hf_dnp3_al_biq_b7;
1201 case BIN_OUT: /* Binary Output Quality flags */
1202 hf0 = hf_dnp3_al_boq_b0;
1203 hf1 = hf_dnp3_al_boq_b1;
1204 hf2 = hf_dnp3_al_boq_b2;
1205 hf3 = hf_dnp3_al_boq_b3;
1206 hf4 = hf_dnp3_al_boq_b4;
1207 hf5 = hf_dnp3_al_boq_b5;
1208 hf6 = hf_dnp3_al_boq_b6;
1209 hf7 = hf_dnp3_al_boq_b7;
1212 case ANA_IN: /* Analog Input Quality flags */
1213 if (al_ptflags & AL_OBJ_AI_FLAG5) dnp3_append_2item_text(point_item, quality_item, ", Over-Range");
1214 if (al_ptflags & AL_OBJ_AI_FLAG6) dnp3_append_2item_text(point_item, quality_item, ", Reference Check");
1216 hf0 = hf_dnp3_al_aiq_b0;
1217 hf1 = hf_dnp3_al_aiq_b1;
1218 hf2 = hf_dnp3_al_aiq_b2;
1219 hf3 = hf_dnp3_al_aiq_b3;
1220 hf4 = hf_dnp3_al_aiq_b4;
1221 hf5 = hf_dnp3_al_aiq_b5;
1222 hf6 = hf_dnp3_al_aiq_b6;
1223 hf7 = hf_dnp3_al_aiq_b7;
1226 case ANA_OUT: /* Analog Output Quality flags */
1227 hf0 = hf_dnp3_al_aoq_b0;
1228 hf1 = hf_dnp3_al_aoq_b1;
1229 hf2 = hf_dnp3_al_aoq_b2;
1230 hf3 = hf_dnp3_al_aoq_b3;
1231 hf4 = hf_dnp3_al_aoq_b4;
1232 hf5 = hf_dnp3_al_aoq_b5;
1233 hf6 = hf_dnp3_al_aoq_b6;
1234 hf7 = hf_dnp3_al_aoq_b7;
1237 case COUNTER: /* Counter Quality flags */
1238 if (al_ptflags & AL_OBJ_CTR_FLAG5) dnp3_append_2item_text(point_item, quality_item, ", Roll-over");
1239 if (al_ptflags & AL_OBJ_CTR_FLAG6) dnp3_append_2item_text(point_item, quality_item, ", Discontinuity");
1241 hf0 = hf_dnp3_al_ctrq_b0;
1242 hf1 = hf_dnp3_al_ctrq_b1;
1243 hf2 = hf_dnp3_al_ctrq_b2;
1244 hf3 = hf_dnp3_al_ctrq_b3;
1245 hf4 = hf_dnp3_al_ctrq_b4;
1246 hf5 = hf_dnp3_al_ctrq_b5;
1247 hf6 = hf_dnp3_al_ctrq_b6;
1248 hf7 = hf_dnp3_al_ctrq_b7;
1252 if (quality_tree != NULL) {
1253 proto_tree_add_item(quality_tree, hf7, tvb, offset, 1, TRUE);
1254 proto_tree_add_item(quality_tree, hf6, tvb, offset, 1, TRUE);
1255 proto_tree_add_item(quality_tree, hf5, tvb, offset, 1, TRUE);
1256 proto_tree_add_item(quality_tree, hf4, tvb, offset, 1, TRUE);
1257 proto_tree_add_item(quality_tree, hf3, tvb, offset, 1, TRUE);
1258 proto_tree_add_item(quality_tree, hf2, tvb, offset, 1, TRUE);
1259 proto_tree_add_item(quality_tree, hf1, tvb, offset, 1, TRUE);
1260 proto_tree_add_item(quality_tree, hf0, tvb, offset, 1, TRUE);
1262 proto_item_append_text(point_item, ")");
1265 /**********************************************************************/
1266 /* Function to convert DNP3 timestamp to nstime_t value */
1267 /**********************************************************************/
1268 /* 48-bit Time Format */
1269 /* MSB FF EE DD CC BB AA LSB */
1270 /* ffffffff eeeeeeee dddddddd cccccccc bbbbbbbb aaaaaaaa */
1271 /* 47 40 39 32 31 24 23 16 15 8 7 0 */
1273 /* Value is ms since 00:00 on 1/1/1970 */
1274 /**********************************************************************/
1276 dnp3_al_get_timestamp(nstime_t *timestamp, tvbuff_t *tvb, int data_pos)
1282 lo = tvb_get_letohs(tvb, data_pos);
1283 hi = tvb_get_letohl(tvb, data_pos + 2);
1285 time_ms = (guint64)hi * 0x10000 + lo;
1287 timestamp->secs = (long)(time_ms / 1000);
1288 timestamp->nsecs = (long)(time_ms % 1000) * 1000000;
1291 /*****************************************************************/
1292 /* Desc: Application Layer Process Object Details */
1293 /* Returns: New offset pointer into tvb */
1294 /*****************************************************************/
1296 dnp3_al_process_object(tvbuff_t *tvb, packet_info *pinfo, int offset, proto_tree *robj_tree, gboolean header_only, guint16 *al_objtype)
1299 guint8 al_2bit, al_objq, al_objq_index, al_objq_code, al_ptflags, al_ctlobj_code, al_oct_len=0,
1300 al_ctlobj_code_c, al_ctlobj_code_m, al_ctlobj_code_tc, al_ctlobj_count, al_bi_val, bitindex=0;
1301 guint16 al_obj, al_val16=0, al_ctlobj_stat, al_relms;
1302 guint32 al_val32, al_ptaddr=0, al_ctlobj_on, al_ctlobj_off;
1303 nstime_t al_cto, al_reltime, al_abstime;
1308 int item_num, num_items=0;
1309 int orig_offset, start_offset, rangebytes=0, indexbytes=0;
1310 proto_item *object_item = NULL, *point_item = NULL, *qualifier_item = NULL, *range_item = NULL;
1311 proto_tree *object_tree = NULL, *point_tree, *qualifier_tree, *range_tree;
1312 const gchar *ctl_code_str, *ctl_misc_str, *ctl_tc_str, *ctl_status_str;
1314 orig_offset = offset;
1316 /* Application Layer Objects in this Message */
1318 al_obj = tvb_get_ntohs(tvb, offset);
1320 /* Special handling for Octet string objects as the variation is the length of the string */
1321 if ((al_obj & 0xFF00) == AL_OBJ_OCT) {
1322 al_oct_len = al_obj & 0xFF;
1323 al_obj = AL_OBJ_OCT;
1326 /* Create Data Objects Detail Tree */
1327 object_item = proto_tree_add_uint_format(robj_tree, hf_dnp3_al_obj, tvb, offset, 2, al_obj,
1328 "Object(s): %s (0x%04x)", val_to_str(al_obj, dnp3_al_obj_vals, "Unknown Object - Abort Decoding..."), al_obj);
1329 object_tree = proto_item_add_subtree(object_item, ett_dnp3_al_obj);
1333 /* Object Qualifier */
1334 al_objq = tvb_get_guint8(tvb, offset);
1335 al_objq_index = al_objq & AL_OBJQ_INDEX;
1336 al_objq_index = al_objq_index >> 4;
1337 al_objq_code = al_objq & AL_OBJQ_CODE;
1339 qualifier_item = proto_tree_add_text(object_tree, tvb, offset, 1, "Qualifier Field, Prefix: %s, Code: %s",
1340 val_to_str(al_objq_index, dnp3_al_objq_index_vals, "Unknown Index Type"),
1341 val_to_str(al_objq_code, dnp3_al_objq_code_vals, "Unknown Code Type"));
1342 qualifier_tree = proto_item_add_subtree(qualifier_item, ett_dnp3_al_obj_qualifier);
1343 proto_tree_add_item(qualifier_tree, hf_dnp3_al_objq_index, tvb, offset, 1, FALSE);
1344 proto_tree_add_item(qualifier_tree, hf_dnp3_al_objq_code, tvb, offset, 1, FALSE);
1348 /* Create (possibly synthesized) number of items and range field tree */
1349 range_item = proto_tree_add_text(object_tree, tvb, offset, 0, "Number of Items: ");
1350 range_tree = proto_item_add_subtree(range_item, ett_dnp3_al_obj_range);
1352 switch (al_objq_code)
1354 case AL_OBJQL_CODE_SSI8: /* 8-bit Start and Stop Indices in Range Field */
1355 num_items = ( tvb_get_guint8(tvb, offset+1) - tvb_get_guint8(tvb, offset) + 1);
1356 PROTO_ITEM_SET_GENERATED(range_item);
1357 al_ptaddr = tvb_get_guint8(tvb, offset);
1358 proto_tree_add_item(range_tree, hf_dnp3_al_range_start8, tvb, offset, 1, TRUE);
1359 proto_tree_add_item(range_tree, hf_dnp3_al_range_stop8, tvb, offset + 1, 1, TRUE);
1362 case AL_OBJQL_CODE_SSI16: /* 16-bit Start and Stop Indices in Range Field */
1363 num_items = ( tvb_get_letohs(tvb, offset+2) - tvb_get_letohs(tvb, (offset)) + 1);
1364 PROTO_ITEM_SET_GENERATED(range_item);
1365 al_ptaddr = tvb_get_letohs(tvb, offset);
1366 proto_tree_add_item(range_tree, hf_dnp3_al_range_start16, tvb, offset, 2, TRUE);
1367 proto_tree_add_item(range_tree, hf_dnp3_al_range_stop16, tvb, offset + 2, 2, TRUE);
1370 case AL_OBJQL_CODE_SSI32: /* 32-bit Start and Stop Indices in Range Field */
1371 num_items = ( tvb_get_letohl(tvb, offset+4) - tvb_get_letohl(tvb, offset) + 1);
1372 PROTO_ITEM_SET_GENERATED(range_item);
1373 al_ptaddr = tvb_get_letohl(tvb, offset);
1374 proto_tree_add_item(range_tree, hf_dnp3_al_range_start32, tvb, offset, 4, TRUE);
1375 proto_tree_add_item(range_tree, hf_dnp3_al_range_stop32, tvb, offset + 4, 4, TRUE);
1378 case AL_OBJQL_CODE_AA8: /* 8-bit Absolute Address in Range Field */
1380 PROTO_ITEM_SET_GENERATED(range_item);
1381 al_ptaddr = tvb_get_guint8(tvb, offset);
1382 proto_tree_add_item(range_tree, hf_dnp3_al_range_abs8, tvb, offset, 1, TRUE);
1385 case AL_OBJQL_CODE_AA16: /* 16-bit Absolute Address in Range Field */
1387 PROTO_ITEM_SET_GENERATED(range_item);
1388 al_ptaddr = tvb_get_letohs(tvb, offset);
1389 proto_tree_add_item(range_tree, hf_dnp3_al_range_abs16, tvb, offset, 2, TRUE);
1392 case AL_OBJQL_CODE_AA32: /* 32-bit Absolute Address in Range Field */
1394 PROTO_ITEM_SET_GENERATED(range_item);
1395 al_ptaddr = tvb_get_letohl(tvb, offset);
1396 proto_tree_add_item(range_tree, hf_dnp3_al_range_abs32, tvb, offset, 4, TRUE);
1399 case AL_OBJQL_CODE_SF8: /* 8-bit Single Field Quantity in Range Field */
1400 num_items = tvb_get_guint8(tvb, offset);
1401 proto_tree_add_item(range_tree, hf_dnp3_al_range_quant8, tvb, offset, 1, TRUE);
1403 proto_item_set_len(range_item, rangebytes);
1405 case AL_OBJQL_CODE_SF16: /* 16-bit Single Field Quantity in Range Field */
1406 num_items = tvb_get_letohs(tvb, offset);
1407 proto_tree_add_item(range_tree, hf_dnp3_al_range_quant16, tvb, offset, 2, TRUE);
1409 proto_item_set_len(range_item, rangebytes);
1411 case AL_OBJQL_CODE_SF32: /* 32-bit Single Field Quantity in Range Field */
1412 num_items = tvb_get_letohl(tvb, offset);
1413 proto_tree_add_item(range_tree, hf_dnp3_al_range_quant32, tvb, offset, 4, TRUE);
1415 proto_item_set_len(range_item, rangebytes);
1418 if (num_items > 0) {
1419 proto_item_append_text(object_item, ", %d point%s", num_items, plurality(num_items, "", "s"));
1421 proto_item_append_text(range_item, "%d", num_items);
1423 if (num_items < 0) {
1424 proto_item_append_text(range_item, " (bogus)");
1425 expert_add_info_format(pinfo, range_item, PI_MALFORMED, PI_ERROR, "Negative number of items");
1426 return tvb_length(tvb);
1430 offset += rangebytes;
1432 bitindex = 0; /* Temp variable for cycling through points when object values are encoded into
1433 bits; primarily objects 0x0101, 0x0301 & 0x1001 */
1435 /* Only process the point information for replies or items with point index lists */
1436 if (!header_only || al_objq_index > 0) {
1437 start_offset = offset;
1438 for (item_num = 0; item_num < num_items; item_num++)
1440 /* Create Point item and Process Index */
1441 point_item = proto_tree_add_text(object_tree, tvb, offset, 0, "Point Number");
1442 point_tree = proto_item_add_subtree(point_item, ett_dnp3_al_obj_point);
1445 indexbytes = dnp3_al_obj_procindex(tvb, offset, al_objq_index, &al_ptaddr, point_tree);
1446 proto_item_append_text(point_item, " %u", al_ptaddr);
1447 data_pos += indexbytes;
1453 case AL_OBJ_BI_ALL: /* Binary Input Default Variation (Obj:01, Var:Default) */
1454 case AL_OBJ_BIC_ALL: /* Binary Input Change Default Variation (Obj:02, Var:Default) */
1455 case AL_OBJ_2BI_ALL: /* Double-bit Input Default Variation (Obj:03, Var:Default) */
1456 case AL_OBJ_CTR_ALL: /* Binary Counter Default Variation (Obj:20, Var:Default) */
1457 case AL_OBJ_CTRC_ALL: /* Binary Counter Change Default Variation (Obj:22 Var:Default) */
1458 case AL_OBJ_AI_ALL: /* Analog Input Default Variation (Obj:30, Var:Default) */
1459 case AL_OBJ_AIC_ALL: /* Analog Input Change Default Variation (Obj:32 Var:Default) */
1464 case AL_OBJ_BI_1BIT: /* Single-Bit Binary Input (Obj:01, Var:01) */
1465 case AL_OBJ_BO: /* Binary Output (Obj:10, Var:01) */
1467 /* Reset bit index if we've gone onto the next byte */
1471 offset += (indexbytes + 1);
1474 /* Extract the bit from the packed byte */
1475 al_bi_val = tvb_get_guint8(tvb, offset);
1476 al_bit = (al_bi_val & (1 << bitindex)) > 0;
1478 proto_item_append_text(point_item, ", Value: %u", al_bit);
1479 proto_tree_add_boolean(point_tree, hf_dnp3_al_bit, tvb, offset, 1, al_bit);
1480 proto_item_set_len(point_item, indexbytes + 1);
1482 /* If we've read the last item, then move the offset past this byte */
1483 if (item_num == (num_items-1))
1485 offset += (indexbytes + 1);
1490 case AL_OBJ_2BI_NF: /* Double-bit Input No Flags (Obj:03, Var:01) */
1495 offset += (indexbytes + 1);
1498 /* Extract the Double-bit from the packed byte */
1499 al_bi_val = tvb_get_guint8(tvb, offset);
1500 al_2bit = ((al_bi_val >> (bitindex << 1)) & 3);
1502 proto_item_append_text(point_item, ", Value: %u", al_2bit);
1503 proto_tree_add_uint(point_tree, hf_dnp3_al_2bit, tvb, offset, 1, al_2bit);
1504 proto_item_set_len(point_item, indexbytes + 1);
1506 /* If we've read the last item, then move the offset past this byte */
1507 if (item_num == (num_items-1))
1509 offset += (indexbytes + 1);
1515 case AL_OBJ_BI_STAT: /* Binary Input With Status (Obj:01, Var:02) */
1516 case AL_OBJ_BIC_NOTIME: /* Binary Input Change Without Time (Obj:02, Var:01) */
1517 case AL_OBJ_BO_STAT: /* Binary Output Status (Obj:10, Var:02) */
1519 /* Get Point Flags */
1520 al_ptflags = tvb_get_guint8(tvb, data_pos);
1523 case AL_OBJ_BI_STAT:
1524 case AL_OBJ_BIC_NOTIME:
1525 dnp3_al_obj_quality(tvb, data_pos, al_ptflags, point_tree, point_item, BIN_IN);
1527 case AL_OBJ_BO_STAT:
1528 dnp3_al_obj_quality(tvb, data_pos, al_ptflags, point_tree, point_item, BIN_OUT);
1533 al_bit = (al_ptflags & AL_OBJ_BI_FLAG7) > 0;
1534 proto_item_append_text(point_item, ", Value: %u", al_bit);
1536 proto_item_set_len(point_item, data_pos - offset);
1541 case AL_OBJ_2BI_STAT: /* Double-bit Input With Status (Obj:03, Var:02) */
1542 case AL_OBJ_2BIC_NOTIME: /* Double-bit Input Change Without Time (Obj:04, Var:01) */
1544 /* Get Point Flags */
1545 al_ptflags = tvb_get_guint8(tvb, data_pos);
1546 dnp3_al_obj_quality(tvb, data_pos, al_ptflags, point_tree, point_item, BIN_IN);
1549 al_2bit = (al_ptflags >> 6) & 3;
1550 proto_item_append_text(point_item, ", Value: %u", al_2bit);
1551 proto_item_set_len(point_item, data_pos - offset);
1556 case AL_OBJ_BIC_TIME: /* Binary Input Change w/ Time (Obj:02, Var:02) */
1558 /* Get Point Flags */
1559 al_ptflags = tvb_get_guint8(tvb, data_pos);
1560 dnp3_al_obj_quality(tvb, data_pos, al_ptflags, point_tree, point_item, BIN_IN);
1565 dnp3_al_get_timestamp(&al_abstime, tvb, data_pos);
1566 proto_tree_add_time(point_tree, hf_dnp3_al_timestamp, tvb, data_pos, 6, &al_abstime);
1569 al_bit = (al_ptflags & AL_OBJ_BI_FLAG7) >> 7; /* bit shift 1xxxxxxx -> xxxxxxx1 */
1570 proto_item_append_text(point_item, ", Value: %u, Timestamp: %s", al_bit, abs_time_to_str(&al_abstime, FALSE));
1571 proto_item_set_len(point_item, data_pos - offset);
1576 case AL_OBJ_2BIC_TIME: /* Double-bit Input Change w/ Time (Obj:04, Var:02) */
1578 /* Get Point Flags */
1579 al_ptflags = tvb_get_guint8(tvb, data_pos);
1580 dnp3_al_obj_quality(tvb, (offset+indexbytes), al_ptflags, point_tree, point_item, BIN_IN);
1585 dnp3_al_get_timestamp(&al_abstime, tvb, data_pos);
1586 proto_tree_add_time(point_tree, hf_dnp3_al_timestamp, tvb, data_pos, 6, &al_abstime);
1589 al_2bit = (al_ptflags >> 6) & 3; /* bit shift 11xxxxxx -> 00000011 */
1590 proto_item_append_text(point_item, ", Value: %u, Timestamp: %s", al_2bit, abs_time_to_str(&al_abstime, FALSE));
1591 proto_item_set_len(point_item, data_pos - offset);
1596 case AL_OBJ_BIC_RTIME: /* Binary Input Change w/ Relative Time (Obj:02, Var:03) */
1598 /* Get Point Flags */
1599 al_ptflags = tvb_get_guint8(tvb, data_pos);
1600 dnp3_al_obj_quality(tvb, data_pos, al_ptflags, point_tree, point_item, BIN_IN);
1603 /* Get relative time, and convert to ns_time */
1604 al_relms = tvb_get_letohs(tvb, data_pos);
1605 al_reltime.secs = al_relms / 1000;
1606 al_reltime.nsecs = (al_relms % 1000) * 1000;
1607 /* Now add to CTO time */
1608 nstime_sum(&al_abstime, &al_cto, &al_reltime);
1609 proto_tree_add_time(point_tree, hf_dnp3_al_rel_timestamp, tvb, data_pos, 2, &al_reltime);
1612 al_bit = (al_ptflags & AL_OBJ_BI_FLAG7) >> 7; /* bit shift 1xxxxxxx -> xxxxxxx1 */
1613 proto_item_append_text(point_item, ", Value: %u, Timestamp: %s", al_bit, abs_time_to_str(&al_abstime, FALSE));
1614 proto_item_set_len(point_item, data_pos - offset);
1619 case AL_OBJ_CTLOP_BLK: /* Control Relay Output Block (Obj:12, Var:01) */
1621 al_ctlobj_code = tvb_get_guint8(tvb, data_pos);
1624 /* Bit-Mask xxxx1111 for Control Code 'Code' */
1625 al_ctlobj_code_c = al_ctlobj_code & AL_OBJCTLC_CODE;
1626 ctl_code_str = val_to_str(al_ctlobj_code_c, dnp3_al_ctlc_code_vals, "Ctrl Code Invalid (0x%02x)");
1628 /* Bit-Mask xx11xxxx for Control Code Misc Values */
1629 al_ctlobj_code_m = al_ctlobj_code & AL_OBJCTLC_MISC;
1630 ctl_misc_str = val_to_str(al_ctlobj_code_m, dnp3_al_ctlc_misc_vals, "");
1632 /* Bit-Mask 11xxxxxx for Control Code 'Trip/Close' */
1633 al_ctlobj_code_tc = al_ctlobj_code & AL_OBJCTLC_TC;
1634 ctl_tc_str = val_to_str(al_ctlobj_code_tc, dnp3_al_ctlc_tc_vals, "");
1636 /* Get "Count" Field */
1637 al_ctlobj_count = tvb_get_guint8(tvb, data_pos);
1640 /* Get "On Time" Field */
1641 al_ctlobj_on = tvb_get_letohl(tvb, data_pos);
1644 /* Get "Off Time" Field */
1645 al_ctlobj_off = tvb_get_letohl(tvb, data_pos);
1648 al_ctlobj_stat = tvb_get_guint8(tvb, data_pos);
1649 proto_tree_add_item(point_item, hf_dnp3_al_ctrlstatus, tvb, data_pos, 1, TRUE);
1650 ctl_status_str = val_to_str(al_ctlobj_stat, dnp3_al_ctl_status_vals, "Invalid Status (0x%02x)");
1653 proto_item_append_text(point_item, ", Control Code: [%s,%s,%s (0x%02x)]",
1654 ctl_code_str, ctl_misc_str, ctl_tc_str, al_ctlobj_code);
1656 proto_tree_add_text(point_tree, tvb, data_pos - 11, 11,
1657 " [Count: %u] [On-Time: %u] [Off-Time: %u] [Status: %s (0x%02x)]",
1658 al_ctlobj_count, al_ctlobj_on, al_ctlobj_off, ctl_status_str, al_ctlobj_stat);
1660 proto_item_set_len(point_item, data_pos - offset);
1665 case AL_OBJ_AO_32OPB: /* 32-Bit Analog Output Block (Obj:41, Var:01) */
1666 case AL_OBJ_AO_16OPB: /* 16-Bit Analog Output Block (Obj:41, Var:02) */
1667 case AL_OBJ_AO_FLTOPB: /* 32-Bit Floating Point Output Block (Obj:41, Var:03) */
1668 case AL_OBJ_AO_DBLOPB: /* 64-Bit Floating Point Output Block (Obj:41, Var:04) */
1672 case AL_OBJ_AO_32OPB:
1673 al_val32 = tvb_get_letohl(tvb, data_pos);
1674 proto_item_append_text(point_item, ", Value: %u", al_val32);
1675 proto_tree_add_item(point_tree, hf_dnp3_al_anaout32, tvb, data_pos, 4, TRUE);
1678 case AL_OBJ_AO_16OPB:
1679 al_val32 = tvb_get_letohs(tvb, data_pos);
1680 proto_item_append_text(point_item, ", Value: %u", al_val32);
1681 proto_tree_add_item(point_tree, hf_dnp3_al_anaout16, tvb, data_pos, 2, TRUE);
1684 case AL_OBJ_AO_FLTOPB:
1685 al_valflt = tvb_get_letohieee_float(tvb, data_pos);
1686 proto_item_append_text(point_item, ", Value: %g", al_valflt);
1687 proto_tree_add_item(point_tree, hf_dnp3_al_anaoutflt, tvb, data_pos, 4, TRUE);
1690 case AL_OBJ_AO_DBLOPB:
1691 al_valdbl = tvb_get_letohieee_double(tvb, data_pos);
1692 proto_item_append_text(point_item, ", Value: %g", al_valdbl);
1693 proto_tree_add_item(point_tree, hf_dnp3_al_anaoutdbl, tvb, data_pos, 8, TRUE);
1698 /* Get control status */
1699 al_ctlobj_stat = tvb_get_guint8(tvb, data_pos);
1700 ctl_status_str = val_to_str(al_ctlobj_stat, dnp3_al_ctl_status_vals, "Invalid Status (0x%02x)");
1701 proto_item_append_text(point_item, " [Status: %s (0x%02x)]", ctl_status_str, al_ctlobj_stat);
1702 proto_tree_add_item(point_tree, hf_dnp3_al_ctrlstatus, tvb, data_pos, 1, TRUE);
1705 proto_item_set_len(point_item, data_pos - offset);
1710 case AL_OBJ_CTR_32: /* 32-Bit Binary Counter (Obj:20, Var:01) */
1711 case AL_OBJ_CTR_16: /* 16-Bit Binary Counter (Obj:20, Var:02) */
1712 case AL_OBJ_DCTR_32: /* 32-Bit Binary Delta Counter (Obj:20, Var:03) */
1713 case AL_OBJ_DCTR_16: /* 16-Bit Binary Delta Counter (Obj:20, Var:04) */
1714 case AL_OBJ_CTR_32NF: /* 32-Bit Binary Counter Without Flag (Obj:20, Var:05) */
1715 case AL_OBJ_CTR_16NF: /* 16-Bit Binary Counter Without Flag (Obj:20, Var:06) */
1716 case AL_OBJ_DCTR_32NF: /* 32-Bit Binary Delta Counter Without Flag (Obj:20, Var:07) */
1717 case AL_OBJ_DCTR_16NF: /* 16-Bit Binary Delta Counter Without Flag (Obj:20, Var:08) */
1718 case AL_OBJ_FCTR_32: /* 32-Bit Frozen Counter (Obj:21, Var:01) */
1719 case AL_OBJ_FCTR_16: /* 16-Bit Frozen Counter (Obj:21, Var:02) */
1720 case AL_OBJ_FDCTR_32: /* 21 03 32-Bit Frozen Delta Counter */
1721 case AL_OBJ_FDCTR_16: /* 21 04 16-Bit Frozen Delta Counter */
1722 case AL_OBJ_FCTR_32T: /* 21 05 32-Bit Frozen Counter w/ Time of Freeze */
1723 case AL_OBJ_FCTR_16T: /* 21 06 16-Bit Frozen Counter w/ Time of Freeze */
1724 case AL_OBJ_FDCTR_32T: /* 21 07 32-Bit Frozen Delta Counter w/ Time of Freeze */
1725 case AL_OBJ_FDCTR_16T: /* 21 08 16-Bit Frozen Delta Counter w/ Time of Freeze */
1726 case AL_OBJ_FCTR_32NF: /* 21 09 32-Bit Frozen Counter Without Flag */
1727 case AL_OBJ_FCTR_16NF: /* 21 10 16-Bit Frozen Counter Without Flag */
1728 case AL_OBJ_FDCTR_32NF: /* 21 11 32-Bit Frozen Delta Counter Without Flag */
1729 case AL_OBJ_FDCTR_16NF: /* 21 12 16-Bit Frozen Delta Counter Without Flag */
1730 case AL_OBJ_CTRC_32: /* 32-Bit Counter Change Event w/o Time (Obj:22, Var:01) */
1731 case AL_OBJ_CTRC_16: /* 16-Bit Counter Change Event w/o Time (Obj:22, Var:02) */
1732 case AL_OBJ_DCTRC_32: /* 32-Bit Delta Counter Change Event w/o Time (Obj:22, Var:03) */
1733 case AL_OBJ_DCTRC_16: /* 16-Bit Delta Counter Change Event w/o Time (Obj:22, Var:04) */
1734 case AL_OBJ_CTRC_32T: /* 32-Bit Counter Change Event with Time (Obj:22, Var:05) */
1735 case AL_OBJ_CTRC_16T: /* 16-Bit Counter Change Event with Time (Obj:22, Var:06) */
1736 case AL_OBJ_DCTRC_32T: /* 32-Bit Delta Counter Change Event with Time (Obj:22, Var:07) */
1737 case AL_OBJ_DCTRC_16T: /* 16-Bit Delta Counter Change Event with Time (Obj:22, Var:08) */
1738 case AL_OBJ_FCTRC_32: /* 21 01 32-Bit Frozen Counter Change Event */
1739 case AL_OBJ_FCTRC_16: /* 21 02 16-Bit Frozen Counter Change Event */
1740 case AL_OBJ_FDCTRC_32: /* 21 03 32-Bit Frozen Delta Counter Change Event */
1741 case AL_OBJ_FDCTRC_16: /* 21 04 16-Bit Frozen Delta Counter Change Event */
1742 case AL_OBJ_FCTRC_32T: /* 21 05 32-Bit Frozen Counter Change Event w/ Time of Freeze */
1743 case AL_OBJ_FCTRC_16T: /* 21 06 16-Bit Frozen Counter Change Event w/ Time of Freeze */
1744 case AL_OBJ_FDCTRC_32T: /* 21 07 32-Bit Frozen Delta Counter Change Event w/ Time of Freeze */
1745 case AL_OBJ_FDCTRC_16T: /* 21 08 16-Bit Frozen Delta Counter Change Event w/ Time of Freeze */
1747 /* Get Point Flags for those types that have them, it's easier to block out those that don't have flags */
1750 case AL_OBJ_CTR_32NF:
1751 case AL_OBJ_CTR_16NF:
1752 case AL_OBJ_DCTR_32NF:
1753 case AL_OBJ_DCTR_16NF:
1754 case AL_OBJ_FCTR_32NF:
1755 case AL_OBJ_FCTR_16NF:
1756 case AL_OBJ_FDCTR_32NF:
1757 case AL_OBJ_FDCTR_16NF:
1761 al_ptflags = tvb_get_guint8(tvb, data_pos);
1762 dnp3_al_obj_quality(tvb, data_pos, al_ptflags, point_tree, point_item, COUNTER);
1767 /* Get Counter values */
1771 case AL_OBJ_DCTR_32:
1772 case AL_OBJ_CTR_32NF:
1773 case AL_OBJ_DCTR_32NF:
1774 case AL_OBJ_FCTR_32:
1775 case AL_OBJ_FDCTR_32:
1776 case AL_OBJ_FCTR_32T:
1777 case AL_OBJ_FDCTR_32T:
1778 case AL_OBJ_FCTR_32NF:
1779 case AL_OBJ_FDCTR_32NF:
1780 case AL_OBJ_CTRC_32:
1781 case AL_OBJ_DCTRC_32:
1782 case AL_OBJ_CTRC_32T:
1783 case AL_OBJ_DCTRC_32T:
1784 case AL_OBJ_FCTRC_32:
1785 case AL_OBJ_FDCTRC_32:
1786 case AL_OBJ_FCTRC_32T:
1787 case AL_OBJ_FDCTRC_32T:
1789 al_val32 = tvb_get_letohl(tvb, data_pos);
1790 proto_item_append_text(point_item, ", Count: %u", al_val32);
1791 proto_tree_add_item(point_tree, hf_dnp3_al_cnt32, tvb, data_pos, 4, TRUE);
1796 case AL_OBJ_DCTR_16:
1797 case AL_OBJ_CTR_16NF:
1798 case AL_OBJ_DCTR_16NF:
1799 case AL_OBJ_FCTR_16:
1800 case AL_OBJ_FDCTR_16:
1801 case AL_OBJ_FCTR_16T:
1802 case AL_OBJ_FDCTR_16T:
1803 case AL_OBJ_FCTR_16NF:
1804 case AL_OBJ_FDCTR_16NF:
1805 case AL_OBJ_CTRC_16:
1806 case AL_OBJ_DCTRC_16:
1807 case AL_OBJ_CTRC_16T:
1808 case AL_OBJ_DCTRC_16T:
1809 case AL_OBJ_FCTRC_16:
1810 case AL_OBJ_FDCTRC_16:
1811 case AL_OBJ_FCTRC_16T:
1812 case AL_OBJ_FDCTRC_16T:
1814 al_val16 = tvb_get_letohs(tvb, data_pos);
1815 proto_item_append_text(point_item, ", Count: %u", al_val16);
1816 proto_tree_add_item(point_tree, hf_dnp3_al_cnt16, tvb, data_pos, 2, TRUE);
1821 /* Get the time for those points that have it */
1824 case AL_OBJ_FCTR_32T:
1825 case AL_OBJ_FCTR_16T:
1826 case AL_OBJ_FDCTR_32T:
1827 case AL_OBJ_FDCTR_16T:
1828 case AL_OBJ_CTRC_32T:
1829 case AL_OBJ_CTRC_16T:
1830 case AL_OBJ_DCTRC_32T:
1831 case AL_OBJ_DCTRC_16T:
1832 case AL_OBJ_FCTRC_32T:
1833 case AL_OBJ_FCTRC_16T:
1834 case AL_OBJ_FDCTRC_32T:
1835 case AL_OBJ_FDCTRC_16T:
1836 dnp3_al_get_timestamp(&al_abstime, tvb, data_pos);
1837 proto_item_append_text(point_item, ", Timestamp: %s", abs_time_to_str(&al_abstime, FALSE));
1838 proto_tree_add_time(point_tree, hf_dnp3_al_timestamp, tvb, data_pos, 6, &al_abstime);
1843 proto_item_set_len(point_item, data_pos - offset);
1848 case AL_OBJ_AI_32: /* 32-Bit Analog Input (Obj:30, Var:01) */
1849 case AL_OBJ_AI_16: /* 16-Bit Analog Input (Obj:30, Var:02) */
1850 case AL_OBJ_AI_32NF: /* 32-Bit Analog Input Without Flag (Obj:30, Var:03) */
1851 case AL_OBJ_AI_16NF: /* 16-Bit Analog Input Without Flag (Obj:30, Var:04) */
1852 case AL_OBJ_AI_FLT: /* 32-Bit Floating Point Input (Obj:30, Var:05) */
1853 case AL_OBJ_AI_DBL: /* 64-Bit Floating Point Input (Obj:30, Var:06) */
1854 case AL_OBJ_AIF_FLT: /* 32-Bit Frozen Floating Point Input (Obj:31, Var:07) */
1855 case AL_OBJ_AIF_DBL: /* 64-Bit Frozen Floating Point Input (Obj:31, Var:08) */
1856 case AL_OBJ_AIC_32NT: /* 32-Bit Analog Change Event w/o Time (Obj:32, Var:01) */
1857 case AL_OBJ_AIC_16NT: /* 16-Bit Analog Change Event w/o Time (Obj:32, Var:02) */
1858 case AL_OBJ_AIC_32T: /* 32-Bit Analog Change Event with Time (Obj:32, Var:03) */
1859 case AL_OBJ_AIC_16T: /* 16-Bit Analog Change Event with Time (Obj:32, Var:04) */
1860 case AL_OBJ_AIC_FLTNT: /* 32-Bit Floating Point Change Event w/o Time (Obj:32, Var:05) */
1861 case AL_OBJ_AIC_DBLNT: /* 64-Bit Floating Point Change Event w/o Time (Obj:32, Var:06) */
1862 case AL_OBJ_AIC_FLTT: /* 32-Bit Floating Point Change Event w/ Time (Obj:32, Var:07) */
1863 case AL_OBJ_AIC_DBLT: /* 64-Bit Floating Point Change Event w/ Time (Obj:32, Var:08) */
1864 case AL_OBJ_AIFC_FLTNT: /* 32-Bit Floating Point Frozen Change Event w/o Time (Obj:33, Var:05) */
1865 case AL_OBJ_AIFC_DBLNT: /* 64-Bit Floating Point Frozen Change Event w/o Time (Obj:33, Var:06) */
1866 case AL_OBJ_AIFC_FLTT: /* 32-Bit Floating Point Frozen Change Event w/ Time (Obj:33, Var:07) */
1867 case AL_OBJ_AIFC_DBLT: /* 64-Bit Floating Point Frozen Change Event w/ Time (Obj:33, Var:08) */
1869 /* Get Point Flags for those types that have them */
1872 case AL_OBJ_AI_32NF:
1873 case AL_OBJ_AI_16NF:
1877 al_ptflags = tvb_get_guint8(tvb, data_pos);
1878 dnp3_al_obj_quality(tvb, data_pos, al_ptflags, point_tree, point_item, ANA_IN);
1886 case AL_OBJ_AI_32NF:
1887 case AL_OBJ_AIC_32NT:
1888 case AL_OBJ_AIC_32T:
1890 al_val32 = tvb_get_letohl(tvb, data_pos);
1891 proto_item_append_text(point_item, ", Value: %u", al_val32);
1892 proto_tree_add_item(point_tree, hf_dnp3_al_ana32, tvb, data_pos, 4, TRUE);
1897 case AL_OBJ_AI_16NF:
1898 case AL_OBJ_AIC_16NT:
1899 case AL_OBJ_AIC_16T:
1901 al_val16 = tvb_get_letohs(tvb, data_pos);
1902 proto_item_append_text(point_item, ", Value: %u", al_val16);
1903 proto_tree_add_item(point_tree, hf_dnp3_al_ana16, tvb, data_pos, 2, TRUE);
1908 case AL_OBJ_AIF_FLT:
1909 case AL_OBJ_AIC_FLTNT:
1910 case AL_OBJ_AIC_FLTT:
1911 case AL_OBJ_AIFC_FLTNT:
1912 case AL_OBJ_AIFC_FLTT:
1914 al_valflt = tvb_get_letohieee_float(tvb, data_pos);
1915 proto_item_append_text(point_item, ", Value: %g", al_valflt);
1916 proto_tree_add_item(point_tree, hf_dnp3_al_anaflt, tvb, data_pos, 4, TRUE);
1921 case AL_OBJ_AIF_DBL:
1922 case AL_OBJ_AIC_DBLNT:
1923 case AL_OBJ_AIC_DBLT:
1924 case AL_OBJ_AIFC_DBLNT:
1925 case AL_OBJ_AIFC_DBLT:
1927 al_valdbl = tvb_get_letohieee_double(tvb, data_pos);
1928 proto_item_append_text(point_item, ", Value: %g", al_valdbl);
1929 proto_tree_add_item(point_tree, hf_dnp3_al_anadbl, tvb, data_pos, 8, TRUE);
1937 case AL_OBJ_AIC_32T:
1938 case AL_OBJ_AIC_16T:
1939 case AL_OBJ_AIC_FLTT:
1940 case AL_OBJ_AIC_DBLT:
1941 case AL_OBJ_AIFC_FLTT:
1942 case AL_OBJ_AIFC_DBLT:
1943 dnp3_al_get_timestamp(&al_abstime, tvb, data_pos);
1944 proto_item_append_text(point_item, ", Timestamp: %s", abs_time_to_str(&al_abstime, FALSE));
1945 proto_tree_add_time(point_tree, hf_dnp3_al_timestamp, tvb, data_pos, 6, &al_abstime);
1950 proto_item_set_len(point_item, data_pos - offset);
1955 case AL_OBJ_AO_32: /* 32-Bit Analog Output Status (Obj:40, Var:01) */
1956 case AL_OBJ_AO_16: /* 16-Bit Analog Output Status (Obj:40, Var:02) */
1957 case AL_OBJ_AO_FLT: /* 32-Bit Floating Point Output Status (Obj:40, Var:03) */
1958 case AL_OBJ_AO_DBL: /* 64-Bit Floating Point Output Status (Obj:40, Var:04) */
1960 /* Get Point Flags */
1961 al_ptflags = tvb_get_guint8(tvb, data_pos);
1962 dnp3_al_obj_quality(tvb, data_pos, al_ptflags, point_tree, point_item, ANA_OUT);
1967 case AL_OBJ_AO_32: /* 32-Bit Analog Output Status (Obj:40, Var:01) */
1969 al_val32 = tvb_get_letohl(tvb, data_pos);
1970 proto_item_append_text(point_item, ", Value: %u", al_val32);
1971 proto_tree_add_item(point_tree, hf_dnp3_al_anaout32, tvb, data_pos, 4, TRUE);
1975 case AL_OBJ_AO_16: /* 16-Bit Analog Output Status (Obj:40, Var:02) */
1977 al_val16 = tvb_get_letohs(tvb, data_pos);
1978 proto_item_append_text(point_item, ", Value: %u", al_val16);
1979 proto_tree_add_item(point_tree, hf_dnp3_al_anaout16, tvb, data_pos, 2, TRUE);
1983 case AL_OBJ_AO_FLT: /* 32-Bit Floating Point Output Status (Obj:40, Var:03) */
1985 al_valflt = tvb_get_letohieee_float(tvb, data_pos);
1986 proto_item_append_text(point_item, ", Value: %g", al_valflt);
1987 proto_tree_add_item(point_tree, hf_dnp3_al_anaoutflt, tvb, data_pos, 4, TRUE);
1991 case AL_OBJ_AO_DBL: /* 64-Bit Floating Point Output Status (Obj:40, Var:04) */
1993 al_valdbl = tvb_get_letohieee_double(tvb, data_pos);
1994 proto_item_append_text(point_item, ", Value: %g", al_valdbl);
1995 proto_tree_add_item(point_tree, hf_dnp3_al_anaoutdbl, tvb, data_pos, 8, TRUE);
2000 proto_item_set_len(point_item, data_pos - offset);
2005 case AL_OBJ_TD: /* Time and Date (Obj:50, Var:01) */
2006 case AL_OBJ_TDCTO: /* Time and Date CTO (Obj:51, Var:01) */
2008 dnp3_al_get_timestamp(&al_cto, tvb, data_pos);
2009 proto_tree_add_time(object_tree, hf_dnp3_al_timestamp, tvb, data_pos, 6, &al_cto);
2011 proto_item_set_len(point_item, data_pos - offset);
2016 case AL_OBJ_TDELAYF: /* Time Delay - Fine (Obj:52, Var:02) */
2018 al_val16 = tvb_get_letohs(tvb, data_pos);
2019 proto_tree_add_text(object_tree, tvb, data_pos, 2, "Time Delay: %u ms", al_val16);
2021 proto_item_set_len(point_item, data_pos - offset);
2026 case AL_OBJ_CLASS0: /* Class Data Objects */
2035 case AL_OBJ_IIN: /* IIN Data Object */
2037 /* Single byte of data here */
2038 proto_tree_add_text(object_tree, tvb, data_pos, 1, "Value: %u", tvb_get_guint8(tvb, data_pos));
2040 proto_item_set_len(point_item, data_pos - offset);
2045 case AL_OBJ_OCT: /* Octet string */
2047 /* read the number of bytes defined by the variation */
2048 if (al_oct_len > 0) {
2049 proto_tree_add_text(object_tree, tvb, data_pos, al_oct_len, "Octet String (%u bytes)", al_oct_len);
2050 data_pos += al_oct_len;
2051 proto_item_set_len(point_item, data_pos - offset);
2057 default: /* In case of unknown object */
2059 proto_tree_add_text(object_tree, tvb, offset, tvb_reported_length_remaining(tvb, offset),
2060 "Unknown Data Chunk, %u Bytes", tvb_reported_length_remaining(tvb, offset));
2061 offset = tvb_length(tvb); /* Finish decoding if unknown object is encountered... */
2064 /* Increment the bit index for next time */
2067 /* And increment the point address, may be overwritten by an index value */
2070 if (start_offset > offset) {
2071 expert_add_info_format(pinfo, point_item, PI_MALFORMED, PI_ERROR, "Invalid length");
2072 offset = tvb_length(tvb); /* Finish decoding if unknown object is encountered... */
2076 proto_item_set_len(object_item, offset - orig_offset);
2081 /*****************************************************************/
2082 /* Application Layer Dissector */
2083 /*****************************************************************/
2085 dissect_dnp3_al(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
2087 guint8 al_ctl, al_seq, al_func, al_class = 0, i;
2088 guint16 bytes, obj_type;
2089 gboolean al_fir, al_fin, al_con, al_uns;
2090 guint data_len = 0, offset = 0;
2091 proto_item *ti = NULL, *tc, *t_robj;
2092 proto_tree *al_tree = NULL, *field_tree = NULL, *robj_tree = NULL;
2093 const gchar *func_code_str;
2095 data_len = tvb_length(tvb);
2097 /* Handle the control byte and function code */
2098 al_ctl = tvb_get_guint8(tvb, offset);
2099 al_seq = al_ctl & DNP3_AL_SEQ;
2100 al_fir = al_ctl & DNP3_AL_FIR;
2101 al_fin = al_ctl & DNP3_AL_FIN;
2102 al_con = al_ctl & DNP3_AL_CON;
2103 al_uns = al_ctl & DNP3_AL_UNS;
2104 al_func = tvb_get_guint8(tvb, (offset+1));
2105 func_code_str = val_to_str(al_func, dnp3_al_func_vals, "Unknown function (0x%02x)");
2107 if (check_col(pinfo->cinfo, COL_INFO))
2108 col_append_sep_fstr(pinfo->cinfo, COL_INFO, NULL, "%s", func_code_str);
2109 col_set_fence(pinfo->cinfo, COL_INFO);
2111 /* format up the text representation */
2112 ti = proto_tree_add_text(tree, tvb, offset, data_len, "Application Layer: (");
2113 if (al_ctl & DNP3_AL_FIR) proto_item_append_text(ti, "FIR, ");
2114 if (al_ctl & DNP3_AL_FIN) proto_item_append_text(ti, "FIN, ");
2115 if (al_ctl & DNP3_AL_CON) proto_item_append_text(ti, "CON, ");
2116 proto_item_append_text(ti, "Sequence %u, %s)", al_seq, func_code_str);
2118 /* Add the al tree branch */
2119 al_tree = proto_item_add_subtree(ti, ett_dnp3_al);
2121 /* Application Layer control byte subtree */
2122 tc = proto_tree_add_uint_format(al_tree, hf_dnp3_al_ctl, tvb, offset, 1, al_ctl,
2123 "Control: 0x%02x (", al_ctl);
2124 if (al_ctl & DNP3_AL_FIR) proto_item_append_text(tc, "FIR, ");
2125 if (al_ctl & DNP3_AL_FIN) proto_item_append_text(tc, "FIN, ");
2126 if (al_ctl & DNP3_AL_CON) proto_item_append_text(tc, "CON, ");
2127 if (al_ctl & DNP3_AL_UNS) proto_item_append_text(tc, "UNS, ");
2128 proto_item_append_text(tc, "Sequence %u)", al_seq);
2130 field_tree = proto_item_add_subtree(tc, ett_dnp3_al_ctl);
2131 proto_tree_add_boolean(field_tree, hf_dnp3_al_fir, tvb, offset, 1, al_ctl);
2132 proto_tree_add_boolean(field_tree, hf_dnp3_al_fin, tvb, offset, 1, al_ctl);
2133 proto_tree_add_boolean(field_tree, hf_dnp3_al_con, tvb, offset, 1, al_ctl);
2134 proto_tree_add_boolean(field_tree, hf_dnp3_al_uns, tvb, offset, 1, al_ctl);
2135 proto_tree_add_item(field_tree, hf_dnp3_al_seq, tvb, offset, 1, FALSE);
2139 /* If this packet is NOT the final Application Layer Message, exit and continue
2140 processing the remaining data in the fragment. */
2143 t_robj = proto_tree_add_text(al_tree, tvb, offset, -1, "Buffering User Data Until Final Frame is Received..");
2148 /* Application Layer Function Code Byte */
2149 proto_tree_add_uint_format(al_tree, hf_dnp3_al_func, tvb, offset, 1, al_func,
2150 "Function Code: %s (0x%02x)", func_code_str, al_func);
2155 case AL_FUNC_READ: /* Read Function Code 0x01 */
2157 /* Create Read Request Data Objects Tree */
2158 t_robj = proto_tree_add_text(al_tree, tvb, offset, -1, "READ Request Data Objects");
2159 robj_tree = proto_item_add_subtree(t_robj, ett_dnp3_al_objdet);
2161 /* Process Data Object Details */
2162 while (offset <= (data_len-2)) { /* 2 octet object code + CRC32 */
2163 offset = dnp3_al_process_object(tvb, pinfo, offset, robj_tree, TRUE, &obj_type);
2165 /* Update class type for each object that was a class read */
2171 al_class |= (1 << ((obj_type & 0x0f) - 1));
2178 /* Update the col info if there were class reads */
2179 if (check_col(pinfo->cinfo, COL_INFO) && (al_class > 0)) {
2180 col_append_sep_fstr(pinfo->cinfo, COL_INFO, NULL, "Class ");
2181 for (i = 0; i < 4; i++) {
2182 if (al_class & (1 << i)) {
2183 col_append_fstr(pinfo->cinfo, COL_INFO, "%u", i);
2190 case AL_FUNC_WRITE: /* Write Function Code 0x02 */
2192 /* Create Write Request Data Objects Tree */
2193 t_robj = proto_tree_add_text(al_tree, tvb, offset, -1, "WRITE Request Data Objects");
2194 robj_tree = proto_item_add_subtree(t_robj, ett_dnp3_al_objdet);
2196 /* Process Data Object Details */
2197 while (offset <= (data_len-2)) { /* 2 octet object code + CRC32 */
2198 offset = dnp3_al_process_object(tvb, pinfo, offset, robj_tree, FALSE, &obj_type);
2203 case AL_FUNC_SELECT: /* Select Function Code 0x03 */
2205 /* Create Select Request Data Objects Tree */
2206 t_robj = proto_tree_add_text(al_tree, tvb, offset, -1, "SELECT Request Data Objects");
2207 robj_tree = proto_item_add_subtree(t_robj, ett_dnp3_al_objdet);
2209 /* Process Data Object Details */
2210 while (offset <= (data_len-2)) { /* 2 octet object code + CRC32 */
2211 offset = dnp3_al_process_object(tvb, pinfo, offset, robj_tree, FALSE, &obj_type);
2216 case AL_FUNC_OPERATE: /* Operate Function Code 0x04 */
2217 /* Functionally identical to 'SELECT' Function Code */
2219 /* Create Operate Request Data Objects Tree */
2220 t_robj = proto_tree_add_text(al_tree, tvb, offset, -1, "OPERATE Request Data Objects");
2221 robj_tree = proto_item_add_subtree(t_robj, ett_dnp3_al_objdet);
2223 /* Process Data Object Details */
2224 while (offset <= (data_len-2)) { /* 2 octet object code + CRC32 */
2225 offset = dnp3_al_process_object(tvb, pinfo, offset, robj_tree, FALSE, &obj_type);
2230 case AL_FUNC_DIROP: /* Direct Operate Function Code 0x05 */
2231 /* Functionally identical to 'SELECT' Function Code */
2233 /* Create Direct Operate Request Data Objects Tree */
2234 t_robj = proto_tree_add_text(al_tree, tvb, offset, -1, "DIRECT OPERATE Request Data Objects");
2235 robj_tree = proto_item_add_subtree(t_robj, ett_dnp3_al_objdet);
2237 /* Process Data Object Details */
2238 while (offset <= (data_len-2)) { /* 2 octet object code + CRC32 */
2239 offset = dnp3_al_process_object(tvb, pinfo, offset, robj_tree, FALSE, &obj_type);
2244 case AL_FUNC_ENSPMSG: /* Enable Spontaneous Messages Function Code 0x14 */
2246 /* Create Enable Spontaneous Messages Data Objects Tree */
2247 t_robj = proto_tree_add_text(al_tree, tvb, offset, -1, "Enable Spontaneous Msg's Data Objects");
2248 robj_tree = proto_item_add_subtree(t_robj, ett_dnp3_al_objdet);
2250 /* Process Data Object Details */
2251 while (offset <= (data_len-2)) { /* 2 octet object code + CRC32 */
2252 offset = dnp3_al_process_object(tvb, pinfo, offset, robj_tree, FALSE, &obj_type);
2257 case AL_FUNC_DELAYMST: /* Delay Measurement Function Code 0x17 */
2261 case AL_FUNC_RESPON: /* Response Function Code 0x81 */
2262 case AL_FUNC_UNSOLI: /* Unsolicited Response Function Code 0x82 */
2264 /* Application Layer IIN bits req'd if message is a response */
2265 dnp3_al_process_iin(tvb, offset, al_tree);
2268 /* Ensure there is actual data remaining in the message.
2269 A response will not contain data following the IIN bits,
2270 if there is none available */
2271 bytes = tvb_reported_length_remaining(tvb, offset);
2274 /* Create Response Data Objects Tree */
2275 t_robj = proto_tree_add_text(al_tree, tvb, offset, -1,"RESPONSE Data Objects");
2276 robj_tree = proto_item_add_subtree(t_robj, ett_dnp3_al_objdet);
2278 /* Process Data Object Details */
2279 while (offset <= (data_len-2)) { /* 2 octet object code + CRC32 */
2280 offset = dnp3_al_process_object(tvb, pinfo, offset, robj_tree, FALSE, &obj_type);
2286 default: /* Unknown Function */
2294 /*****************************************************************/
2295 /* Data Link and Transport layer dissector */
2296 /*****************************************************************/
2298 dissect_dnp3_message(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
2301 /* Set up structures needed to add the protocol subtree and manage it */
2302 proto_item *ti = NULL, *tdl, *tc, *al_chunks, *hidden_item;
2303 proto_tree *dnp3_tree = NULL, *dl_tree = NULL, *tr_tree = NULL, *field_tree = NULL, *al_tree = NULL;
2304 int offset = 0, temp_offset = 0, al_result = 0;
2305 gboolean dl_prm, tr_fir, tr_fin;
2306 guint8 dl_len, dl_ctl, dl_func, tr_ctl, tr_seq;
2307 const gchar *func_code_str;
2308 guint16 dl_dst, dl_src, dl_crc, calc_dl_crc;
2309 guint8 *tmp = NULL, *tmp_ptr;
2312 gboolean crc_OK = FALSE;
2313 tvbuff_t *al_tvb = NULL, *next_tvb;
2315 guint conv_seq_number;
2316 gboolean save_fragmented;
2317 fragment_data *frag_msg;
2318 gboolean update_col_info = TRUE;
2319 conversation_t *conversation;
2320 dnp3_conv_t *conv_data_ptr;
2324 /* Make entries in Protocol column and Info column on summary display */
2325 col_set_str(pinfo->cinfo, COL_PROTOCOL, "DNP 3.0");
2327 col_clear(pinfo->cinfo, COL_INFO);
2329 /* Skip "0x0564" header bytes */
2332 dl_len = tvb_get_guint8(tvb, temp_offset);
2335 dl_ctl = tvb_get_guint8(tvb, temp_offset);
2338 dl_dst = tvb_get_letohs(tvb, temp_offset);
2341 dl_src = tvb_get_letohs(tvb, temp_offset);
2343 dl_func = dl_ctl & DNP3_CTL_FUNC;
2344 dl_prm = dl_ctl & DNP3_CTL_PRM;
2345 func_code_str = val_to_str(dl_func, dl_prm ? dnp3_ctl_func_pri_vals : dnp3_ctl_func_sec_vals,
2346 "Unknown function (0x%02x)");
2348 if (check_col(pinfo->cinfo, COL_INFO))
2349 col_append_fstr(pinfo->cinfo, COL_INFO, "len=%u, from %u to %u, %s",
2350 dl_len, dl_src, dl_dst, func_code_str);
2352 /* create display subtree for the protocol */
2353 ti = proto_tree_add_item(tree, proto_dnp3, tvb, offset, -1, FALSE);
2354 dnp3_tree = proto_item_add_subtree(ti, ett_dnp3);
2356 /* Create Subtree for Data Link Layer */
2357 tdl = proto_tree_add_text(dnp3_tree, tvb, offset, DNP_HDR_LEN,
2358 "Data Link Layer, Len: %u, From: %u, To: %u, ", dl_len, dl_src, dl_dst);
2360 if (dl_ctl & DNP3_CTL_DIR) proto_item_append_text(tdl, "DIR, ");
2361 if (dl_ctl & DNP3_CTL_PRM) proto_item_append_text(tdl, "PRM, ");
2362 if (dl_ctl & DNP3_CTL_FCB) proto_item_append_text(tdl, "FCB, ");
2363 if (dl_ctl & DNP3_CTL_FCV) proto_item_append_text(tdl, "FCV, ");
2366 if (dl_ctl & DNP3_CTL_DIR) proto_item_append_text(tdl, "DIR, ");
2367 if (dl_ctl & DNP3_CTL_PRM) proto_item_append_text(tdl, "PRM, ");
2368 if (dl_ctl & DNP3_CTL_RES) proto_item_append_text(tdl, "RES, ");
2369 if (dl_ctl & DNP3_CTL_DFC) proto_item_append_text(tdl, "DFC, ");
2371 proto_item_append_text(tdl, "%s", func_code_str);
2372 dl_tree = proto_item_add_subtree(tdl, ett_dnp3_dl);
2375 proto_tree_add_item(dl_tree, hf_dnp3_start, tvb, offset, 2, FALSE);
2378 /* add length field */
2379 proto_tree_add_item(dl_tree, hf_dnp3_len, tvb, offset, 1, FALSE);
2382 /* Add Control Byte Subtree */
2383 tc = proto_tree_add_uint_format(dl_tree, hf_dnp3_ctl, tvb, offset, 1, dl_ctl,
2384 "Control: 0x%02x (", dl_ctl);
2385 /* Add Text to Control Byte Subtree Header */
2387 if (dl_ctl & DNP3_CTL_DIR) proto_item_append_text(tc, "DIR, ");
2388 if (dl_ctl & DNP3_CTL_PRM) proto_item_append_text(tc, "PRM, ");
2389 if (dl_ctl & DNP3_CTL_FCB) proto_item_append_text(tc, "FCB, ");
2390 if (dl_ctl & DNP3_CTL_FCV) proto_item_append_text(tc, "FCV, ");
2393 if (dl_ctl & DNP3_CTL_DIR) proto_item_append_text(tc, "DIR, ");
2394 if (dl_ctl & DNP3_CTL_PRM) proto_item_append_text(tc, "PRM, ");
2395 if (dl_ctl & DNP3_CTL_RES) proto_item_append_text(tc, "RES, ");
2396 if (dl_ctl & DNP3_CTL_DFC) proto_item_append_text(tc, "DFC, ");
2398 proto_item_append_text(tc, "%s)", func_code_str );
2399 field_tree = proto_item_add_subtree(tc, ett_dnp3_dl_ctl);
2401 /* Add Control Byte Subtree Items */
2403 proto_tree_add_item(field_tree, hf_dnp3_ctl_dir, tvb, offset, 1, TRUE);
2404 proto_tree_add_item(field_tree, hf_dnp3_ctl_prm, tvb, offset, 1, TRUE);
2405 proto_tree_add_item(field_tree, hf_dnp3_ctl_fcb, tvb, offset, 1, TRUE);
2406 proto_tree_add_item(field_tree, hf_dnp3_ctl_fcv, tvb, offset, 1, TRUE);
2407 proto_tree_add_item(field_tree, hf_dnp3_ctl_prifunc, tvb, offset, 1, FALSE);
2410 proto_tree_add_item(field_tree, hf_dnp3_ctl_dir, tvb, offset, 1, TRUE);
2411 proto_tree_add_item(field_tree, hf_dnp3_ctl_prm, tvb, offset, 1, TRUE);
2412 proto_tree_add_item(field_tree, hf_dnp3_ctl_dfc, tvb, offset, 1, TRUE);
2413 proto_tree_add_item(field_tree, hf_dnp3_ctl_secfunc, tvb, offset, 1, FALSE);
2417 /* add destination and source addresses */
2418 proto_tree_add_item(dl_tree, hf_dnp3_dst, tvb, offset, 2, TRUE);
2420 proto_tree_add_item(dl_tree, hf_dnp3_src, tvb, offset, 2, TRUE);
2423 /* and header CRC */
2424 dl_crc = tvb_get_letohs(tvb, offset);
2425 calc_dl_crc = calculateCRC(tvb_get_ptr(tvb, 0, DNP_HDR_LEN - 2), DNP_HDR_LEN - 2);
2426 if (dl_crc == calc_dl_crc)
2427 proto_tree_add_uint_format(dl_tree, hf_dnp_hdr_CRC, tvb, offset, 2,
2428 dl_crc, "CRC: 0x%04x [correct]", dl_crc);
2431 hidden_item = proto_tree_add_boolean(dl_tree, hf_dnp_hdr_CRC_bad, tvb,
2433 PROTO_ITEM_SET_HIDDEN(hidden_item);
2434 proto_tree_add_uint_format(dl_tree, hf_dnp_hdr_CRC, tvb, offset, 2,
2435 dl_crc, "CRC: 0x%04x [incorrect, should be 0x%04x]",
2436 dl_crc, calc_dl_crc);
2440 /* If the DataLink function is 'Request Link Status' or 'Status of Link',
2441 or 'Reset Link' we don't expect any Transport or Application Layer Data
2442 NOTE: This code should probably check what DOES have TR or AL data */
2443 if ((dl_func != DL_FUNC_LINK_STAT) && (dl_func != DL_FUNC_STAT_LINK) &&
2444 (dl_func != DL_FUNC_RESET_LINK) && (dl_func != DL_FUNC_ACK))
2447 /* get the transport layer byte */
2448 tr_ctl = tvb_get_guint8(tvb, offset);
2449 tr_seq = tr_ctl & DNP3_TR_SEQ;
2450 tr_fir = tr_ctl & DNP3_TR_FIR;
2451 tr_fin = tr_ctl & DNP3_TR_FIN;
2453 /* Add Transport Layer Tree */
2454 tc = proto_tree_add_uint_format(dnp3_tree, hf_dnp3_tr_ctl, tvb, offset, 1, tr_ctl,
2455 "Transport Layer: 0x%02x (", tr_ctl);
2456 if (tr_fir) proto_item_append_text(tc, "FIR, ");
2457 if (tr_fin) proto_item_append_text(tc, "FIN, ");
2458 proto_item_append_text(tc, "Sequence %u)", tr_seq);
2460 tr_tree = proto_item_add_subtree(tc, ett_dnp3_tr_ctl);
2461 proto_tree_add_boolean(tr_tree, hf_dnp3_tr_fin, tvb, offset, 1, tr_ctl);
2462 proto_tree_add_boolean(tr_tree, hf_dnp3_tr_fir, tvb, offset, 1, tr_ctl);
2463 proto_tree_add_item(tr_tree, hf_dnp3_tr_seq, tvb, offset, 1, FALSE);
2465 /* Allocate AL chunk tree */
2466 al_chunks = proto_tree_add_text(tr_tree, tvb, offset + 1, -1, "Application data chunks");
2467 al_tree = proto_item_add_subtree(al_chunks, ett_dnp3_al_data);
2469 /* extract the application layer data, validating the CRCs */
2471 /* XXX - check for dl_len <= 5 */
2472 data_len = dl_len - 5;
2473 tmp = g_malloc(data_len);
2476 data_offset = 1; /* skip the transport layer byte when assembling chunks */
2480 const guint8 *chk_ptr;
2481 guint16 calc_crc, act_crc;
2483 chk_size = MIN(data_len, AL_MAX_CHUNK_SIZE);
2484 chk_ptr = tvb_get_ptr(tvb, offset, chk_size);
2485 memcpy(tmp_ptr, chk_ptr + data_offset, chk_size - data_offset);
2486 calc_crc = calculateCRC(chk_ptr, chk_size);
2488 tmp_ptr += chk_size - data_offset;
2489 act_crc = tvb_get_letohs(tvb, offset);
2491 crc_OK = calc_crc == act_crc;
2494 proto_tree_add_text(al_tree, tvb, offset - (chk_size + 2), chk_size + 2,
2495 "Application Chunk %u Len: %u CRC 0x%04x",
2496 i, chk_size, act_crc);
2497 data_len -= chk_size;
2501 proto_tree_add_text(al_tree, tvb, offset - (chk_size + 2), chk_size + 2,
2502 "Application Chunk %u Len: %u Bad CRC got 0x%04x expected 0x%04x",
2503 i, chk_size, act_crc, calc_crc);
2508 data_offset = 0; /* copy all of the rest of the chunks */
2511 /* if all crc OK, set up new tvb */
2514 al_tvb = tvb_new_child_real_data(tvb, tmp, (guint) (tmp_ptr-tmp), (gint) (tmp_ptr-tmp));
2515 tvb_set_free_cb(al_tvb, g_free);
2517 /* Check for fragmented packet */
2518 save_fragmented = pinfo->fragmented;
2519 if (! (tr_fir && tr_fin))
2521 /* A fragmented packet */
2522 pinfo->fragmented = TRUE;
2524 /* Look up the conversation to get the fragment reassembly id */
2525 conversation = find_conversation(pinfo->fd->num, &pinfo->src, &pinfo->dst,
2526 pinfo->ptype, pinfo->srcport, pinfo->destport, 0);
2528 if (conversation == NULL) {
2529 /* No conversation yet, so make one */
2530 conversation = conversation_new(pinfo->fd->num, &pinfo->src, &pinfo->dst, pinfo->ptype,
2531 pinfo->srcport, pinfo->destport, 0);
2534 conv_data_ptr = (dnp3_conv_t*)conversation_get_proto_data(conversation, proto_dnp3);
2536 if (conv_data_ptr == NULL) {
2537 /* New data structure required */
2538 conv_data_ptr = se_alloc(sizeof(dnp3_conv_t));
2540 /*** Increment static global fragment reassembly id ***/
2541 conv_data_ptr->conv_seq_number = seq_number++;
2543 conversation_add_proto_data(conversation, proto_dnp3, (void *)conv_data_ptr);
2545 conv_seq_number = conv_data_ptr->conv_seq_number;
2549 * whatever reassembly is in progress, if any, and see
2553 frag_msg = fragment_add_seq_next(al_tvb, 0, pinfo, conv_seq_number,
2555 al_reassembled_table,
2556 tvb_reported_length(al_tvb), /* As this is a constructed tvb, all of it is ok */
2559 next_tvb = process_reassembled_data(al_tvb, 0, pinfo,
2560 "Reassembled DNP 3.0 Application Layer message", frag_msg, &dnp3_frag_items,
2561 &update_col_info, tr_tree);
2563 if (next_tvb) { /* Reassembled */
2564 /* We have the complete payload */
2565 if (check_col (pinfo->cinfo, COL_INFO))
2566 col_set_str(pinfo->cinfo, COL_INFO, "Reassembled Application Layer");
2567 col_set_fence(pinfo->cinfo, COL_INFO);
2571 /* We don't have the complete reassembled payload. */
2572 if (check_col (pinfo->cinfo, COL_INFO))
2573 col_add_fstr (pinfo->cinfo, COL_INFO,
2574 "Application Layer fragment %u", tr_seq);
2575 col_set_fence(pinfo->cinfo, COL_INFO);
2581 /* No reassembly required */
2583 add_new_data_source(pinfo, next_tvb, "DNP 3.0 Application Layer message");
2584 col_clear(pinfo->cinfo, COL_INFO);
2586 pinfo->fragmented = save_fragmented;
2590 /* CRC error - throw away the data. */
2593 proto_tree_add_text(dnp3_tree, tvb, 11, -1, "CRC failed, %u chunks", i);
2598 al_result = dissect_dnp3_al(next_tvb, pinfo, dnp3_tree);
2604 get_dnp3_message_len(packet_info *pinfo _U_, tvbuff_t *tvb, int offset)
2606 guint16 message_len; /* need 16 bits as total can exceed 255 */
2607 guint16 data_crc; /* No. of user data CRC bytes */
2608 message_len = tvb_get_guint8(tvb, offset + 2);
2610 /* Add in 2 bytes for header start octets,
2611 1 byte for len itself,
2612 2 bytes for header CRC
2613 data CRC bytes (2 bytes per 16 bytes of data
2616 data_crc = (guint16)(ceil((message_len - 5) / 16.0)) * 2;
2617 message_len += 2 + 1 + 2 + data_crc;
2622 dissect_dnp3_tcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
2624 gint length = tvb_length(tvb);
2626 /* Check for a dnp packet. It should begin with 0x0564 */
2627 if(length < DNP_HDR_LEN || tvb_get_ntohs(tvb, 0) != 0x0564) {
2628 /* Not a DNP 3.0 packet, just happened to use the same port */
2632 tcp_dissect_pdus(tvb, pinfo, tree, TRUE, DNP_HDR_LEN,
2633 get_dnp3_message_len, dissect_dnp3_message);
2635 return tvb_length(tvb);
2639 dissect_dnp3_udp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
2641 gint length = tvb_length(tvb);
2642 /* Check for a dnp packet. It should begin with 0x0564 */
2643 if(length < DNP_HDR_LEN || tvb_get_ntohs(tvb, 0) != 0x0564) {
2644 /* Not a DNP 3.0 packet, just happened to use the same port */
2648 dissect_dnp3_message(tvb, pinfo, tree);
2653 al_defragment_init(void)
2655 fragment_table_init(&al_fragment_table);
2656 reassembled_table_init(&al_reassembled_table);
2659 /* Register the protocol with Wireshark */
2662 proto_register_dnp3(void)
2665 /* Setup list of header fields */
2666 static hf_register_info hf[] = {
2668 { "Start Bytes", "dnp3.start", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL }},
2671 { "Length", "dnp3.len", FT_UINT8, BASE_DEC, NULL, 0x0, "Frame Data Length", HFILL }},
2674 { "Control", "dnp3.ctl", FT_UINT8, BASE_HEX, NULL, 0x0, "Frame Control Byte", HFILL }},
2676 { &hf_dnp3_ctl_prifunc,
2677 { "Control Function Code", "dnp3.ctl.prifunc", FT_UINT8, BASE_DEC,
2678 VALS(dnp3_ctl_func_pri_vals), DNP3_CTL_FUNC, "Frame Control Function Code", HFILL }},
2680 { &hf_dnp3_ctl_secfunc,
2681 { "Control Function Code", "dnp3.ctl.secfunc", FT_UINT8, BASE_DEC,
2682 VALS(dnp3_ctl_func_sec_vals), DNP3_CTL_FUNC, "Frame Control Function Code", HFILL }},
2685 { "Direction", "dnp3.ctl.dir", FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_CTL_DIR, NULL, HFILL }},
2688 { "Primary", "dnp3.ctl.prm", FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_CTL_PRM, NULL, HFILL }},
2691 { "Frame Count Bit", "dnp3.ctl.fcb", FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_CTL_FCB, NULL, HFILL }},
2694 { "Frame Count Valid", "dnp3.ctl.fcv", FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_CTL_FCV, NULL, HFILL }},
2697 { "Data Flow Control", "dnp3.ctl.dfc", FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_CTL_DFC, NULL, HFILL }},
2700 { "Destination", "dnp3.dst", FT_UINT16, BASE_DEC, NULL, 0x0, "Destination Address", HFILL }},
2703 { "Source", "dnp3.src", FT_UINT16, BASE_DEC, NULL, 0x0, "Source Address", HFILL }},
2706 { "CRC", "dnp3.hdr.CRC", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL }},
2708 { &hf_dnp_hdr_CRC_bad,
2709 { "Bad CRC", "dnp3.hdr.CRC_bad", FT_BOOLEAN, BASE_NONE, NULL, 0x0, NULL, HFILL }},
2712 { "Transport Control", "dnp3.tr.ctl", FT_UINT8, BASE_HEX, NULL, 0x0, "Transport Layer Control Byte", HFILL }},
2715 { "Final", "dnp3.tr.fin", FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_TR_FIN, NULL, HFILL }},
2718 { "First", "dnp3.tr.fir", FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_TR_FIR, NULL, HFILL }},
2721 { "Sequence", "dnp3.tr.seq", FT_UINT8, BASE_DEC, NULL, DNP3_TR_SEQ, "Frame Sequence Number", HFILL }},
2724 { "Application Control", "dnp3.al.ctl", FT_UINT8, BASE_HEX, NULL, 0x0, "Application Layer Control Byte", HFILL }},
2727 { "First", "dnp3.al.fir", FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_AL_FIR, NULL, HFILL }},
2730 { "Final", "dnp3.al.fin", FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_AL_FIN, NULL, HFILL }},
2733 { "Confirm", "dnp3.al.con", FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_AL_CON, NULL, HFILL }},
2736 { "Unsolicited", "dnp3.al.uns", FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_AL_UNS, NULL, HFILL }},
2739 { "Sequence", "dnp3.al.seq", FT_UINT8, BASE_DEC, NULL, DNP3_AL_SEQ, "Frame Sequence Number", HFILL }},
2742 { "Application Layer Function Code", "dnp3.al.func", FT_UINT8, BASE_DEC,
2743 VALS(dnp3_al_func_vals), DNP3_AL_FUNC, "Application Function Code", HFILL }},
2746 { "Application Layer IIN bits", "dnp3.al.iin", FT_UINT16, BASE_DEC, NULL, 0x0, "Application Layer IIN", HFILL }},
2748 { &hf_dnp3_al_iin_bmsg,
2749 { "Broadcast Msg Rx", "dnp3.al.iin.bmsg", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_BMSG, NULL, HFILL }},
2751 { &hf_dnp3_al_iin_cls1d,
2752 { "Class 1 Data Available", "dnp3.al.iin.cls1d", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_CLS1D, NULL, HFILL }},
2754 { &hf_dnp3_al_iin_cls2d,
2755 { "Class 2 Data Available", "dnp3.al.iin.cls2d", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_CLS2D, NULL, HFILL }},
2757 { &hf_dnp3_al_iin_cls3d,
2758 { "Class 3 Data Available", "dnp3.al.iin.cls3d", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_CLS3D, NULL, HFILL }},
2760 { &hf_dnp3_al_iin_tsr,
2761 { "Time Sync Required", "dnp3.al.iin.tsr", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_TSR, NULL, HFILL }},
2763 { &hf_dnp3_al_iin_dol,
2764 { "Digital Outputs in Local", "dnp3.al.iin.dol", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_DOL, NULL, HFILL }},
2766 { &hf_dnp3_al_iin_dt,
2767 { "Device Trouble", "dnp3.al.iin.dt", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_DT, NULL, HFILL }},
2769 { &hf_dnp3_al_iin_rst,
2770 { "Device Restart", "dnp3.al.iin.rst", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_RST, NULL, HFILL }},
2772 { &hf_dnp3_al_iin_obju,
2773 { "Requested Objects Unknown", "dnp3.al.iin.obju", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_OBJU, NULL, HFILL }},
2775 { &hf_dnp3_al_iin_pioor,
2776 { "Parameters Invalid or Out of Range", "dnp3.al.iin.pioor", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_PIOOR, NULL, HFILL }},
2778 { &hf_dnp3_al_iin_ebo,
2779 { "Event Buffer Overflow", "dnp3.al.iin.ebo", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_EBO, NULL, HFILL }},
2781 { &hf_dnp3_al_iin_oae,
2782 { "Operation Already Executing", "dnp3.al.iin.oae", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_OAE, NULL, HFILL }},
2784 { &hf_dnp3_al_iin_cc,
2785 { "Configuration Corrupt", "dnp3.al.iin.cc", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_CC, NULL, HFILL }},
2788 { "Object", "dnp3.al.obj", FT_UINT16, BASE_HEX, VALS(dnp3_al_obj_vals), 0x0, "Application Layer Object", HFILL }},
2790 { &hf_dnp3_al_objq_index,
2791 { "Index Prefix", "dnp3.al.objq.index", FT_UINT8, BASE_DEC, VALS(dnp3_al_objq_index_vals), AL_OBJQ_INDEX, "Object Index Prefixing", HFILL }},
2793 { &hf_dnp3_al_objq_code,
2794 { "Qualifier Code", "dnp3.al.objq.code", FT_UINT8, BASE_DEC, VALS(dnp3_al_objq_code_vals), AL_OBJQ_CODE, "Object Qualifier Code", HFILL }},
2796 { &hf_dnp3_al_range_start8,
2797 { "Start (8 bit)", "dnp3.al.range.start", FT_UINT8, BASE_DEC, NULL, 0x0, "Object Start Index", HFILL }},
2799 { &hf_dnp3_al_range_stop8,
2800 { "Stop (8 bit)", "dnp3.al.range.stop", FT_UINT8, BASE_DEC, NULL, 0x0, "Object Stop Index", HFILL }},
2802 { &hf_dnp3_al_range_start16,
2803 { "Start (16 bit)", "dnp3.al.range.start", FT_UINT16, BASE_DEC, NULL, 0x0, "Object Start Index", HFILL }},
2805 { &hf_dnp3_al_range_stop16,
2806 { "Stop (16 bit)", "dnp3.al.range.stop", FT_UINT16, BASE_DEC, NULL, 0x0, "Object Stop Index", HFILL }},
2808 { &hf_dnp3_al_range_start32,
2809 { "Start (32 bit)", "dnp3.al.range.start", FT_UINT32, BASE_DEC, NULL, 0x0, "Object Start Index", HFILL }},
2811 { &hf_dnp3_al_range_stop32,
2812 { "Stop (32 bit)", "dnp3.al.range.stop", FT_UINT32, BASE_DEC, NULL, 0x0, "Object Stop Index", HFILL }},
2814 { &hf_dnp3_al_range_abs8,
2815 { "Address (8 bit)", "dnp3.al.range.abs", FT_UINT8, BASE_DEC, NULL, 0x0, "Object Absolute Address", HFILL }},
2817 { &hf_dnp3_al_range_abs16,
2818 { "Address (16 bit)", "dnp3.al.range.abs", FT_UINT16, BASE_DEC, NULL, 0x0, "Object Absolute Address", HFILL }},
2820 { &hf_dnp3_al_range_abs32,
2821 { "Address (32 bit)", "dnp3.al.range.abs", FT_UINT32, BASE_DEC, NULL, 0x0, "Object Absolute Address", HFILL }},
2823 { &hf_dnp3_al_range_quant8,
2824 { "Quantity (8 bit)", "dnp3.al.range.quantity", FT_UINT8, BASE_DEC, NULL, 0x0, "Object Quantity", HFILL }},
2826 { &hf_dnp3_al_range_quant16,
2827 { "Quantity (16 bit)", "dnp3.al.range.quantity", FT_UINT16, BASE_DEC, NULL, 0x0, "Object Quantity", HFILL }},
2829 { &hf_dnp3_al_range_quant32,
2830 { "Quantity (32 bit)", "dnp3.al.range.quantity", FT_UINT32, BASE_DEC, NULL, 0x0, "Object Quantity", HFILL }},
2832 { &hf_dnp3_al_index8,
2833 { "Index (8 bit)", "dnp3.al.index", FT_UINT8, BASE_DEC, NULL, 0x0, "Object Index", HFILL }},
2835 { &hf_dnp3_al_index16,
2836 { "Index (16 bit)", "dnp3.al.index", FT_UINT16, BASE_DEC, NULL, 0x0, "Object Index", HFILL }},
2838 { &hf_dnp3_al_index32,
2839 { "Index (32 bit)", "dnp3.al.index", FT_UINT32, BASE_DEC, NULL, 0x0, "Object Index", HFILL }},
2841 { &hf_dnp3_al_ptnum,
2842 { "Object Point Number", "dnp3.al.ptnum", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
2845 { "Value (bit)", "dnp3.al.bit", FT_BOOLEAN, 8, TFS(&tfs_on_off), 0x1, "Digital Value (1 bit)", HFILL }},
2848 { "Value (two bit)", "dnp3.al.2bit", FT_UINT8, BASE_DEC, NULL, 0x0, "Digital Value (2 bit)", HFILL }},
2850 { &hf_dnp3_al_ana16,
2851 { "Value (16 bit)", "dnp3.al.ana", FT_UINT16, BASE_DEC, NULL, 0x0, "Analog Value (16 bit)", HFILL }},
2853 { &hf_dnp3_al_ana32,
2854 { "Value (32 bit)", "dnp3.al.ana", FT_UINT32, BASE_DEC, NULL, 0x0, "Analog Value (32 bit)", HFILL }},
2856 { &hf_dnp3_al_anaflt,
2857 { "Value (float)", "dnp3.al.ana", FT_FLOAT, BASE_NONE, NULL, 0x0, "Analog Value (float)", HFILL }},
2859 { &hf_dnp3_al_anadbl,
2860 { "Value (double)", "dnp3.al.ana", FT_DOUBLE, BASE_NONE, NULL, 0x0, "Analog Value (double)", HFILL }},
2862 { &hf_dnp3_al_anaout16,
2863 { "Output Value (16 bit)", "dnp3.al.anaout", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
2865 { &hf_dnp3_al_anaout32,
2866 { "Output Value (32 bit)", "dnp3.al.anaout", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
2868 { &hf_dnp3_al_anaoutflt,
2869 { "Output Value (float)", "dnp3.al.anaout", FT_FLOAT, BASE_NONE, NULL, 0x0, NULL, HFILL }},
2871 { &hf_dnp3_al_anaoutdbl,
2872 { "Output (double)", "dnp3.al.anaout", FT_DOUBLE, BASE_NONE, NULL, 0x0, "Output Value (double)", HFILL }},
2874 { &hf_dnp3_al_cnt16,
2875 { "Counter (16 bit)", "dnp3.al.cnt", FT_UINT16, BASE_DEC, NULL, 0x0, "Counter Value (16 bit)", HFILL }},
2877 { &hf_dnp3_al_cnt32,
2878 { "Counter (32 bit)", "dnp3.al.cnt", FT_UINT32, BASE_DEC, NULL, 0x0, "Counter Value (32 bit)", HFILL }},
2880 { &hf_dnp3_al_ctrlstatus,
2881 { "Control Status", "dnp3.al.ctrlstatus", FT_UINT8, BASE_DEC, dnp3_al_ctl_status_vals, 0xff, NULL, HFILL }},
2883 { &hf_dnp3_al_biq_b0,
2884 { "Online", "dnp3.al.biq.b0", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BI_FLAG0, NULL, HFILL }},
2886 { &hf_dnp3_al_biq_b1,
2887 { "Restart", "dnp3.al.biq.b1", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BI_FLAG1, NULL, HFILL }},
2889 { &hf_dnp3_al_biq_b2,
2890 { "Comm Fail", "dnp3.al.biq.b2", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BI_FLAG2, NULL, HFILL }},
2892 { &hf_dnp3_al_biq_b3,
2893 { "Remote Force", "dnp3.al.biq.b3", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BI_FLAG3, NULL, HFILL }},
2895 { &hf_dnp3_al_biq_b4,
2896 { "Local Force", "dnp3.al.biq.b4", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BI_FLAG4, NULL, HFILL }},
2898 { &hf_dnp3_al_biq_b5,
2899 { "Chatter Filter", "dnp3.al.biq.b5", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BI_FLAG5, NULL, HFILL }},
2901 { &hf_dnp3_al_biq_b6,
2902 { "Reserved", "dnp3.al.biq.b6", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BI_FLAG6, NULL, HFILL }},
2904 { &hf_dnp3_al_biq_b7,
2905 { "Point Value", "dnp3.al.biq.b7", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BI_FLAG7, NULL, HFILL }},
2907 { &hf_dnp3_al_boq_b0,
2908 { "Online", "dnp3.al.boq.b0", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BO_FLAG0, NULL, HFILL }},
2910 { &hf_dnp3_al_boq_b1,
2911 { "Restart", "dnp3.al.boq.b1", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BO_FLAG1, NULL, HFILL }},
2913 { &hf_dnp3_al_boq_b2,
2914 { "Comm Fail", "dnp3.al.boq.b2", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BO_FLAG2, NULL, HFILL }},
2916 { &hf_dnp3_al_boq_b3,
2917 { "Remote Force", "dnp3.al.boq.b3", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BO_FLAG3, NULL, HFILL }},
2919 { &hf_dnp3_al_boq_b4,
2920 { "Local Force", "dnp3.al.boq.b4", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BO_FLAG4, NULL, HFILL }},
2922 { &hf_dnp3_al_boq_b5,
2923 { "Reserved", "dnp3.al.boq.b5", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BO_FLAG5, NULL, HFILL }},
2925 { &hf_dnp3_al_boq_b6,
2926 { "Reserved", "dnp3.al.boq.b6", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BO_FLAG6, NULL, HFILL }},
2928 { &hf_dnp3_al_boq_b7,
2929 { "Point Value", "dnp3.al.boq.b7", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BO_FLAG7, NULL, HFILL }},
2931 { &hf_dnp3_al_ctrq_b0,
2932 { "Online", "dnp3.al.ctrq.b0", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_CTR_FLAG0, NULL, HFILL }},
2934 { &hf_dnp3_al_ctrq_b1,
2935 { "Restart", "dnp3.al.ctrq.b1", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_CTR_FLAG1, NULL, HFILL }},
2937 { &hf_dnp3_al_ctrq_b2,
2938 { "Comm Fail", "dnp3.al.ctrq.b2", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_CTR_FLAG2, NULL, HFILL }},
2940 { &hf_dnp3_al_ctrq_b3,
2941 { "Remote Force", "dnp3.al.ctrq.b3", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_CTR_FLAG3, NULL, HFILL }},
2943 { &hf_dnp3_al_ctrq_b4,
2944 { "Local Force", "dnp3.al.ctrq.b4", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_CTR_FLAG4, NULL, HFILL }},
2946 { &hf_dnp3_al_ctrq_b5,
2947 { "Roll-Over", "dnp3.al.ctrq.b5", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_CTR_FLAG5, NULL, HFILL }},
2949 { &hf_dnp3_al_ctrq_b6,
2950 { "Discontinuity", "dnp3.al.ctrq.b6", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_CTR_FLAG6, NULL, HFILL }},
2952 { &hf_dnp3_al_ctrq_b7,
2953 { "Reserved", "dnp3.al.ctrq.b7", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_CTR_FLAG7, NULL, HFILL }},
2955 { &hf_dnp3_al_aiq_b0,
2956 { "Online", "dnp3.al.aiq.b0", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AI_FLAG0, NULL, HFILL }},
2958 { &hf_dnp3_al_aiq_b1,
2959 { "Restart", "dnp3.al.aiq.b1", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AI_FLAG1, NULL, HFILL }},
2961 { &hf_dnp3_al_aiq_b2,
2962 { "Comm Fail", "dnp3.al.aiq.b2", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AI_FLAG2, NULL, HFILL }},
2964 { &hf_dnp3_al_aiq_b3,
2965 { "Remote Force", "dnp3.al.aiq.b3", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AI_FLAG3, NULL, HFILL }},
2967 { &hf_dnp3_al_aiq_b4,
2968 { "Local Force", "dnp3.al.aiq.b4", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AI_FLAG4, NULL, HFILL }},
2970 { &hf_dnp3_al_aiq_b5,
2971 { "Over-Range", "dnp3.al.aiq.b5", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AI_FLAG5, NULL, HFILL }},
2973 { &hf_dnp3_al_aiq_b6,
2974 { "Reference Check", "dnp3.al.aiq.b6", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AI_FLAG6, NULL, HFILL }},
2976 { &hf_dnp3_al_aiq_b7,
2977 { "Reserved", "dnp3.al.aiq.b7", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AI_FLAG7, NULL, HFILL }},
2979 { &hf_dnp3_al_aoq_b0,
2980 { "Online", "dnp3.al.aoq.b0", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AO_FLAG0, NULL, HFILL }},
2982 { &hf_dnp3_al_aoq_b1,
2983 { "Restart", "dnp3.al.aoq.b1", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AO_FLAG1, NULL, HFILL }},
2985 { &hf_dnp3_al_aoq_b2,
2986 { "Comm Fail", "dnp3.al.aoq.b2", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AO_FLAG2, NULL, HFILL }},
2988 { &hf_dnp3_al_aoq_b3,
2989 { "Remote Force", "dnp3.al.aoq.b3", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AO_FLAG3, NULL, HFILL }},
2991 { &hf_dnp3_al_aoq_b4,
2992 { "Local Force", "dnp3.al.aoq.b4", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AO_FLAG4, NULL, HFILL }},
2994 { &hf_dnp3_al_aoq_b5,
2995 { "Reserved", "dnp3.al.aoq.b5", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AO_FLAG5, NULL, HFILL }},
2997 { &hf_dnp3_al_aoq_b6,
2998 { "Reserved", "dnp3.al.aoq.b6", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AO_FLAG6, NULL, HFILL }},
3000 { &hf_dnp3_al_aoq_b7,
3001 { "Reserved", "dnp3.al.aoq.b7", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AO_FLAG7, NULL, HFILL }},
3003 { &hf_dnp3_al_timestamp,
3004 { "Timestamp", "dnp3.al.timestamp", FT_ABSOLUTE_TIME, BASE_NONE, NULL, 0, "Object Timestamp", HFILL }},
3006 { &hf_dnp3_al_rel_timestamp,
3007 { "Relative Timestamp", "dnp3.al.reltimestamp", FT_RELATIVE_TIME, BASE_NONE, NULL, 0, "Object Relative Timestamp", HFILL }},
3009 { &hf_dnp3_fragment,
3010 { "DNP 3.0 AL Fragment", "dnp3.al.fragment", FT_FRAMENUM, BASE_NONE, NULL, 0x0, "DNP 3.0 Application Layer Fragment", HFILL }},
3012 { &hf_dnp3_fragments,
3013 { "DNP 3.0 AL Fragments", "dnp3.al.fragments", FT_NONE, BASE_NONE, NULL, 0x0, "DNP 3.0 Application Layer Fragments", HFILL }},
3015 { &hf_dnp3_fragment_overlap,
3016 { "Fragment overlap", "dnp3.al.fragment.overlap", FT_BOOLEAN, BASE_NONE, NULL, 0x0, "Fragment overlaps with other fragments", HFILL }},
3018 { &hf_dnp3_fragment_overlap_conflict,
3019 { "Conflicting data in fragment overlap", "dnp3.al.fragment.overlap.conflict", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
3020 "Overlapping fragments contained conflicting data", HFILL }},
3022 { &hf_dnp3_fragment_multiple_tails,
3023 { "Multiple tail fragments found", "dnp3.al.fragment.multipletails", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
3024 "Several tails were found when defragmenting the packet", HFILL }},
3026 { &hf_dnp3_fragment_too_long_fragment,
3027 { "Fragment too long", "dnp3.al.fragment.toolongfragment", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
3028 "Fragment contained data past end of packet", HFILL }},
3030 { &hf_dnp3_fragment_error,
3031 { "Defragmentation error", "dnp3.al.fragment.error", FT_FRAMENUM, BASE_NONE, NULL, 0x0,
3032 "Defragmentation error due to illegal fragments", HFILL }},
3034 { &hf_dnp3_fragment_reassembled_in,
3035 { "Reassembled PDU In Frame", "dnp3.al.fragment.reassembled_in", FT_FRAMENUM, BASE_NONE, NULL, 0x0,
3036 "This PDU is reassembled in this frame", HFILL }}
3039 /* Setup protocol subtree array */
3040 static gint *ett[] = {
3050 &ett_dnp3_al_obj_qualifier,
3051 &ett_dnp3_al_obj_range,
3052 &ett_dnp3_al_objdet,
3053 &ett_dnp3_al_obj_quality,
3054 &ett_dnp3_al_obj_point,
3058 module_t *dnp3_module;
3060 /* Register protocol init routine */
3061 register_init_routine(&al_defragment_init);
3063 /* Register the protocol name and description */
3064 proto_dnp3 = proto_register_protocol("Distributed Network Protocol 3.0",
3067 /* Required function calls to register the header fields and subtrees used */
3068 proto_register_field_array(proto_dnp3, hf, array_length(hf));
3069 proto_register_subtree_array(ett, array_length(ett));
3071 dnp3_module = prefs_register_protocol(proto_dnp3, NULL);
3072 prefs_register_bool_preference(dnp3_module, "desegment",
3073 "Reassemble DNP3 messages spanning multiple TCP segments",
3074 "Whether the DNP3 dissector should reassemble messages spanning multiple TCP segments."
3075 " To use this option, you must also enable \"Allow subdissectors to reassemble TCP streams\" in the TCP protocol settings.",
3080 /* If this dissector uses sub-dissector registration add a registration routine.
3081 This format is required because a script is used to find these routines and
3082 create the code that calls these routines.
3085 proto_reg_handoff_dnp3(void)
3087 dissector_handle_t dnp3_tcp_handle;
3088 dissector_handle_t dnp3_udp_handle;
3090 dnp3_tcp_handle = new_create_dissector_handle(dissect_dnp3_tcp, proto_dnp3);
3091 dnp3_udp_handle = new_create_dissector_handle(dissect_dnp3_udp, proto_dnp3);
3092 dissector_add("tcp.port", TCP_PORT_DNP, dnp3_tcp_handle);
3093 dissector_add("udp.port", UDP_PORT_DNP, dnp3_udp_handle);
3102 * indent-tabs-mode: nil
3105 * ex: set shiftwidth=2 tabstop=8 expandtab
3106 * :indentSize=2:tabSize=8:noTabs=true: