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>
54 * although note that you have to join the DNP organization to get to
55 * see the protocol specs online - otherwise, you have to buy a
58 * ...Application Layer Notes...
60 * Application Layer Decoding based on information available in
61 * DNP3 Basic 4 Documentation Set, specifically the document:
62 * "DNP V3.00 Application Layer" v0.03 P009-0PD.APP & Technical Bulletins
65 /***************************************************************************/
66 /* DNP 3.0 Constants */
67 /***************************************************************************/
68 #define DNP_HDR_LEN 10
69 #define TCP_PORT_DNP 20000
70 #define UDP_PORT_DNP 20000
72 /***************************************************************************/
73 /* Datalink and Transport Layer Bit-Masks */
74 /***************************************************************************/
75 #define DNP3_CTL_DIR 0x80
76 #define DNP3_CTL_PRM 0x40
77 #define DNP3_CTL_FCB 0x20
78 #define DNP3_CTL_FCV 0x10
79 #define DNP3_CTL_RES 0x20
80 #define DNP3_CTL_DFC 0x10
81 #define DNP3_CTL_FUNC 0x0f
83 #define DNP3_TR_FIR 0x40
84 #define DNP3_TR_FIN 0x80
85 #define DNP3_TR_SEQ 0x3f
87 #define AL_MAX_CHUNK_SIZE 16
89 /***************************************************************************/
90 /* Data Link Function codes */
91 /***************************************************************************/
92 /* Primary to Secondary */
93 #define DL_FUNC_RESET_LINK 0x00
94 #define DL_FUNC_RESET_PROC 0x01
95 #define DL_FUNC_TEST_LINK 0x02
96 #define DL_FUNC_USER_DATA 0x03
97 #define DL_FUNC_UNC_DATA 0x04
98 #define DL_FUNC_LINK_STAT 0x09
100 /* Secondary to Primary */
101 #define DL_FUNC_ACK 0x00
102 #define DL_FUNC_NACK 0x01
103 #define DL_FUNC_STAT_LINK 0x0B
104 #define DL_FUNC_NO_FUNC 0x0E
105 #define DL_FUNC_NOT_IMPL 0x0F
107 /***************************************************************************/
108 /* Application Layer Bit-Masks */
109 /***************************************************************************/
110 #define DNP3_AL_CON 0x20
111 #define DNP3_AL_FIN 0x40
112 #define DNP3_AL_FIR 0x80
113 #define DNP3_AL_SEQ 0x1f
114 #define DNP3_AL_FUNC 0xff
116 /***************************************************************************/
117 /* Application Layer Function codes */
118 /***************************************************************************/
119 #define AL_FUNC_CONFIRM 0x00 /* 00 - Confirm */
120 #define AL_FUNC_READ 0x01 /* 01 - Read */
121 #define AL_FUNC_WRITE 0x02 /* 02 - Write */
122 #define AL_FUNC_SELECT 0x03 /* 03 - Select */
123 #define AL_FUNC_OPERATE 0x04 /* 04 - Operate */
124 #define AL_FUNC_DIROP 0x05 /* 05 - Direct Operate */
125 #define AL_FUNC_DIROPNACK 0x06 /* 06 - Direct Operate No ACK */
126 #define AL_FUNC_FRZ 0x07 /* 07 - Immediate Freeze */
127 #define AL_FUNC_FRZNACK 0x08 /* 08 - Immediate Freeze No ACK */
128 #define AL_FUNC_FRZCLR 0x09 /* 09 - Freeze and Clear */
129 #define AL_FUNC_FRZCLRNACK 0x0A /* 10 - Freeze and Clear No ACK */
130 #define AL_FUNC_FRZT 0x0B /* 11 - Freeze With Time */
131 #define AL_FUNC_FRZTNACK 0x0C /* 12 - Freeze With Time No ACK */
132 #define AL_FUNC_COLDRST 0x0D /* 13 - Cold Restart */
133 #define AL_FUNC_WARMRST 0x0E /* 14 - Warm Restart */
134 #define AL_FUNC_INITDATA 0x0F /* 15 - Initialize Data */
135 #define AL_FUNC_INITAPP 0x10 /* 16 - Initialize Application */
136 #define AL_FUNC_STARTAPP 0x11 /* 17 - Start Application */
137 #define AL_FUNC_STOPAPP 0x12 /* 18 - Stop Application */
138 #define AL_FUNC_SAVECFG 0x13 /* 19 - Save Configuration */
139 #define AL_FUNC_ENSPMSG 0x14 /* 20 - Enable Spontaneous Msg */
140 #define AL_FUNC_DISSPMSG 0x15 /* 21 - Disable Spontaneous Msg */
141 #define AL_FUNC_ASSIGNCL 0x16 /* 22 - Assign Classes */
142 #define AL_FUNC_DELAYMST 0x17 /* 23 - Delay Measurement */
143 #define AL_FUNC_RESPON 0x81 /* 129 - Response */
144 #define AL_FUNC_UNSOLI 0x82 /* 130 - Unsolicited Response */
146 /***************************************************************************/
147 /* Application Layer Internal Indication (IIN) bits */
148 /* 2 Bytes, message formatting: [First Octet] | [Second Octet] */
149 /***************************************************************************/
151 #define AL_IIN_BMSG 0x0100 /* Bit 0 - Broadcast message rx'd */
152 #define AL_IIN_CLS1D 0x0200 /* Bit 1 - Class 1 Data Available */
153 #define AL_IIN_CLS2D 0x0400 /* Bit 2 - Class 2 Data Available */
154 #define AL_IIN_CLS3D 0x0800 /* Bit 3 - Class 3 Data Available */
155 #define AL_IIN_TSR 0x1000 /* Bit 4 - Time Sync Req'd from Master */
156 #define AL_IIN_DOL 0x2000 /* Bit 5 - Digital Outputs in Local Mode */
157 #define AL_IIN_DT 0x4000 /* Bit 6 - Device Trouble */
158 #define AL_IIN_RST 0x8000 /* Bit 7 - Device Restart */
161 /* 0x0001 Bit 0 - Reserved */
162 #define AL_IIN_OBJU 0x0002 /* Bit 1 - Requested Objects Unknown */
163 #define AL_IIN_PIOOR 0x0004 /* Bit 2 - Parameters Invalid or Out of Range */
164 #define AL_IIN_EBO 0x0008 /* Bit 3 - Event Buffer Overflow */
165 #define AL_IIN_OAE 0x0010 /* Bit 4 - Operation Already Executing */
166 #define AL_IIN_CC 0x0020 /* Bit 5 - Device Configuration Corrupt */
167 /* 0x0040 Bit 6 - Reserved */
168 /* 0x0080 Bit 7 - Reserved */
170 /***************************************************************************/
171 /* Application Layer Data Object Qualifier */
172 /***************************************************************************/
174 #define AL_OBJQ_INDEX 0x70 /* x111xxxx Masks Index from Qualifier */
175 #define AL_OBJQ_CODE 0x0F /* xxxx1111 Masks Code from Qualifier */
177 /* Index Size (3-bits x111xxxx) */
178 /* When Qualifier Code != 11 */
179 #define AL_OBJQL_IDX_NI 0x00 /* Objects are Packed with no index */
180 #define AL_OBJQL_IDX_1O 0x01 /* Objects are prefixed w/ 1-octet index */
181 #define AL_OBJQL_IDX_2O 0x02 /* Objects are prefixed w/ 2-octet index */
182 #define AL_OBJQL_IDX_4O 0x03 /* Objects are prefixed w/ 4-octet index */
183 #define AL_OBJQL_IDX_1OS 0x04 /* Objects are prefixed w/ 1-octet object size */
184 #define AL_OBJQL_IDX_2OS 0x05 /* Objects are prefixed w/ 2-octet object size */
185 #define AL_OBJQL_IDX_4OS 0x06 /* Objects are prefixed w/ 4-octet object size */
187 /* When Qualifier Code == 11 */
188 #define AL_OBJQL_IDX11_1OIS 0x01 /* 1 octet identifier size */
189 #define AL_OBJQL_IDX11_2OIS 0x02 /* 2 octet identifier size */
190 #define AL_OBJQL_IDX11_4OIS 0x03 /* 4 octet identifier size */
192 /* Qualifier Code (4-bits) */
193 /* 4-bits ( xxxx1111 ) */
194 #define AL_OBJQL_CODE_SSI8 0x00 /* 00 8-bit Start and Stop Indices in Range Field */
195 #define AL_OBJQL_CODE_SSI16 0x01 /* 01 16-bit Start and Stop Indices in Range Field */
196 #define AL_OBJQL_CODE_SSI32 0x02 /* 02 32-bit Start and Stop Indices in Range Field */
197 #define AL_OBJQL_CODE_AA8 0x03 /* 03 8-bit Absolute Address in Range Field */
198 #define AL_OBJQL_CODE_AA16 0x04 /* 04 16-bit Absolute Address in Range Field */
199 #define AL_OBJQL_CODE_AA32 0x05 /* 05 32-bit Absolute Address in Range Field */
200 #define AL_OBJQL_CODE_R0 0x06 /* 06 Length of Range field is 0 (no range field) */
201 #define AL_OBJQL_CODE_SF8 0x07 /* 07 8-bit Single Field Quantity */
202 #define AL_OBJQL_CODE_SF16 0x08 /* 08 16-bit Single Field Quantity */
203 #define AL_OBJQL_CODE_SF32 0x09 /* 09 32-bit Single Field Quantity */
204 /* 0x0A 10 Reserved */
205 #define AL_OBJQL_CODE_FF 0x0B /* 11 Free-format Qualifier */
206 /* 0x0C 12 Reserved */
207 /* 0x0D 13 Reserved */
208 /* 0x0E 14 Reserved */
209 /* 0x0F 15 Reserved */
211 /***************************************************************************/
212 /* Application Layer Data Object Definitions */
213 /***************************************************************************/
214 /* Binary Input Objects */
215 #define AL_OBJ_BI_ALL 0x0100 /* 01 00 Binary Input All Variations */
216 #define AL_OBJ_BI_1BIT 0x0101 /* 01 01 Single-bit Binary Input */
217 #define AL_OBJ_BI_STAT 0x0102 /* 01 02 Binary Input With Status */
218 #define AL_OBJ_BIC_ALL 0x0200 /* 02 00 Binary Input Change All Variations */
219 #define AL_OBJ_BIC_NOTIME 0x0201 /* 02 01 Binary Input Change Without Time */
220 #define AL_OBJ_BIC_TIME 0x0202 /* 02 02 Binary Input Change With Time */
221 #define AL_OBJ_BIC_RTIME 0x0203 /* 02 03 Binary Input Change With Relative Time */
223 /* Double-bit Input Objects */
224 #define AL_OBJ_2BI_ALL 0x0300 /* 03 00 Double-bit Input All Variations */
225 #define AL_OBJ_2BI_NF 0x0301 /* 03 01 Double-bit Input No Flags */
226 #define AL_OBJ_2BI_STAT 0x0302 /* 03 02 Double-bit Input With Status */
227 #define AL_OBJ_2BIC_NOTIME 0x0401 /* 04 01 Double-bit Input Change Without Time */
228 #define AL_OBJ_2BIC_TIME 0x0402 /* 04 02 Double-bit Input Change With Time */
229 #define AL_OBJ_2BIC_RTIME 0x0403 /* 04 03 Double-bit Input Change With Relative Time */
231 /* Binary Input Quality Flags */
232 #define AL_OBJ_BI_FLAG0 0x0001 /* Point Online (0=Offline; 1=Online) */
233 #define AL_OBJ_BI_FLAG1 0x0002 /* Restart (0=Normal; 1=Restart) */
234 #define AL_OBJ_BI_FLAG2 0x0004 /* Comms Lost (0=Normal; 1=Lost) */
235 #define AL_OBJ_BI_FLAG3 0x0008 /* Remote Force (0=Normal; 1=Forced) */
236 #define AL_OBJ_BI_FLAG4 0x0010 /* Local Force (0=Normal; 1=Forced) */
237 #define AL_OBJ_BI_FLAG5 0x0020 /* Chatter Filter (0=Normal; 1=Filter On) */
238 #define AL_OBJ_BI_FLAG6 0x0040 /* Double-bit LSB (0=Off; 1=On) */
239 #define AL_OBJ_BI_FLAG7 0x0080 /* Point State (0=Off; 1=On) or Double-bit MSB */
241 /***************************************************************************/
242 /* Binary Output Objects */
243 #define AL_OBJ_BO 0x0A01 /* 10 01 Binary Output */
244 #define AL_OBJ_BO_STAT 0x0A02 /* 10 02 Binary Output Status */
245 #define AL_OBJ_CTLOP_BLK 0x0C01 /* 12 01 Control Relay Output Block */
246 /* 0x0C02 12 02 Pattern Control Block */
247 /* 0x0C03 12 03 Pattern Mask */
249 #define AL_OBJCTLC_CODE 0x0F /* Bit-Mask xxxx1111 for Control Code 'Code' */
250 #define AL_OBJCTLC_MISC 0x30 /* Bit-Mask xx11xxxx for Control Code Misc Values */
251 #define AL_OBJCTLC_TC 0xC0 /* Bit-Mask 11xxxxxx for Control Code 'Trip/Close' */
253 #define AL_OBJCTLC_CODE0 0x00 /* xxxx0000 NUL Operation; only process R attribute */
254 #define AL_OBJCTLC_CODE1 0x01 /* xxxx0001 Pulse On ^On-Time -> vOff-Time, remain off */
255 #define AL_OBJCTLC_CODE2 0x02 /* xxxx0010 Pulse Off vOff-Time -> ^On-Time, remain on */
256 #define AL_OBJCTLC_CODE3 0x03 /* xxxx0011 Latch On */
257 #define AL_OBJCTLC_CODE4 0x04 /* xxxx0100 Latch Off */
258 /* 0x05-0x15 Reserved */
260 #define AL_OBJCTLC_QUEUE 0x10 /* xxx1xxxx for Control Code 'Queue' */
261 #define AL_OBJCTLC_CLEAR 0x20 /* xx1xxxxx for Control Code 'Clear' */
263 #define AL_OBJCTLC_TC0 0x00 /* 00xxxxxx NUL */
264 #define AL_OBJCTLC_TC1 0x40 /* 01xxxxxx Close */
265 #define AL_OBJCTLC_TC2 0x80 /* 10xxxxxx Trip */
267 #define AL_OBJCTL_STAT0 0x00 /* Request Accepted, Initiated or Queued */
268 #define AL_OBJCTL_STAT1 0x01 /* Request Not Accepted; Arm-timer expired */
269 #define AL_OBJCTL_STAT2 0x02 /* Request Not Accepted; No 'SELECT' rx'd */
270 #define AL_OBJCTL_STAT3 0x03 /* Request Not Accepted; Format errors in ctrl request */
271 #define AL_OBJCTL_STAT4 0x04 /* Control Operation Not Supported for this point */
272 #define AL_OBJCTL_STAT5 0x05 /* Request Not Accepted; Ctrl Queue full or pt. active */
273 #define AL_OBJCTL_STAT6 0x06 /* Request Not Accepted; Ctrl HW Problems */
274 #define AL_OBJCTL_STAT7 0x07 /* Request Not Accepted; Local/Remote switch in Local*/
275 #define AL_OBJCTL_STAT8 0x08 /* Request Not Accepted; Too many operations requested */
276 #define AL_OBJCTL_STAT9 0x09 /* Request Not Accepted; Insufficient authorization */
277 #define AL_OBJCTL_STAT10 0x0A /* Request Not Accepted; Local automation proc active */
279 /* Binary Output Quality Flags */
280 #define AL_OBJ_BO_FLAG0 0x0001 /* Point Online (0=Offline; 1=Online) */
281 #define AL_OBJ_BO_FLAG1 0x0002 /* Restart (0=Normal; 1=Restart) */
282 #define AL_OBJ_BO_FLAG2 0x0004 /* Comms Lost (0=Normal; 1=Lost) */
283 #define AL_OBJ_BO_FLAG3 0x0008 /* Remote Force (0=Normal; 1=Forced) */
284 #define AL_OBJ_BO_FLAG4 0x0010 /* Local Force (0=Normal; 1=Forced) */
285 #define AL_OBJ_BO_FLAG5 0x0020 /* Reserved */
286 #define AL_OBJ_BO_FLAG6 0x0040 /* Reserved */
287 #define AL_OBJ_BO_FLAG7 0x0080 /* Point State (0=Off; 1=On) */
289 /***************************************************************************/
290 /* Counter Objects */
291 #define AL_OBJ_CTR_ALL 0x1400 /* 20 00 Binary Counter All Variations */
292 #define AL_OBJ_CTR_32 0x1401 /* 20 01 32-Bit Binary Counter */
293 #define AL_OBJ_CTR_16 0x1402 /* 20 02 16-Bit Binary Counter */
294 #define AL_OBJ_DCTR_32 0x1403 /* 20 03 32-Bit Delta Counter */
295 #define AL_OBJ_DCTR_16 0x1404 /* 20 04 16-Bit Delta Counter */
296 #define AL_OBJ_CTR_32NF 0x1405 /* 20 05 32-Bit Binary Counter Without Flag */
297 #define AL_OBJ_CTR_16NF 0x1406 /* 20 06 16-Bit Binary Counter Without Flag */
298 #define AL_OBJ_DCTR_32NF 0x1407 /* 20 07 32-Bit Delta Counter Without Flag */
299 #define AL_OBJ_DCTR_16NF 0x1408 /* 20 08 16-Bit Delta Counter Without Flag */
300 #define AL_OBJ_FCTR_ALL 0x1500 /* 21 00 Frozen Binary Counter All Variations */
301 #define AL_OBJ_FCTR_32 0x1501 /* 21 01 32-Bit Frozen Counter */
302 #define AL_OBJ_FCTR_16 0x1502 /* 21 02 16-Bit Frozen Counter */
303 #define AL_OBJ_FDCTR_32 0x1503 /* 21 03 32-Bit Frozen Delta Counter */
304 #define AL_OBJ_FDCTR_16 0x1504 /* 21 04 16-Bit Frozen Delta Counter */
305 #define AL_OBJ_FCTR_32T 0x1505 /* 21 05 32-Bit Frozen Counter w/ Time of Freeze */
306 #define AL_OBJ_FCTR_16T 0x1506 /* 21 06 16-Bit Frozen Counter w/ Time of Freeze */
307 #define AL_OBJ_FDCTR_32T 0x1507 /* 21 07 32-Bit Frozen Delta Counter w/ Time of Freeze */
308 #define AL_OBJ_FDCTR_16T 0x1508 /* 21 08 16-Bit Frozen Delta Counter w/ Time of Freeze */
309 #define AL_OBJ_FCTR_32NF 0x1509 /* 21 09 32-Bit Frozen Counter Without Flag */
310 #define AL_OBJ_FCTR_16NF 0x1510 /* 21 10 16-Bit Frozen Counter Without Flag */
311 #define AL_OBJ_FDCTR_32NF 0x1511 /* 21 11 32-Bit Frozen Delta Counter Without Flag */
312 #define AL_OBJ_FDCTR_16NF 0x1512 /* 21 12 16-Bit Frozen Delta Counter Without Flag */
313 #define AL_OBJ_CTRC_ALL 0x1600 /* 22 00 Counter Change Event All Variations */
314 #define AL_OBJ_CTRC_32 0x1601 /* 22 01 32-Bit Counter Change Event w/o Time */
315 #define AL_OBJ_CTRC_16 0x1602 /* 22 02 16-Bit Counter Change Event w/o Time */
316 #define AL_OBJ_DCTRC_32 0x1603 /* 22 03 32-Bit Delta Counter Change Event w/o Time */
317 #define AL_OBJ_DCTRC_16 0x1604 /* 22 04 16-Bit Delta Counter Change Event w/o Time */
318 #define AL_OBJ_CTRC_32T 0x1605 /* 22 05 32-Bit Counter Change Event with Time */
319 #define AL_OBJ_CTRC_16T 0x1606 /* 22 06 16-Bit Counter Change Event with Time */
320 #define AL_OBJ_DCTRC_32T 0x1607 /* 22 07 32-Bit Delta Counter Change Event with Time */
321 #define AL_OBJ_DCTRC_16T 0x1608 /* 22 08 16-Bit Delta Counter Change Event with Time */
322 #define AL_OBJ_FCTRC_ALL 0x1700 /* 21 00 Frozen Binary Counter Change Event All Variations */
323 #define AL_OBJ_FCTRC_32 0x1701 /* 21 01 32-Bit Frozen Counter Change Event */
324 #define AL_OBJ_FCTRC_16 0x1702 /* 21 02 16-Bit Frozen Counter Change Event */
325 #define AL_OBJ_FDCTRC_32 0x1703 /* 21 03 32-Bit Frozen Delta Counter Change Event */
326 #define AL_OBJ_FDCTRC_16 0x1704 /* 21 04 16-Bit Frozen Delta Counter Change Event */
327 #define AL_OBJ_FCTRC_32T 0x1705 /* 21 05 32-Bit Frozen Counter Change Event w/ Time of Freeze */
328 #define AL_OBJ_FCTRC_16T 0x1706 /* 21 06 16-Bit Frozen Counter Change Event w/ Time of Freeze */
329 #define AL_OBJ_FDCTRC_32T 0x1707 /* 21 07 32-Bit Frozen Delta Counter Change Event w/ Time of Freeze */
330 #define AL_OBJ_FDCTRC_16T 0x1708 /* 21 08 16-Bit Frozen Delta Counter Change Event w/ Time of Freeze */
332 /* Counter Quality Flags */
333 #define AL_OBJ_CTR_FLAG0 0x0001 /* Point Online (0=Offline; 1=Online) */
334 #define AL_OBJ_CTR_FLAG1 0x0002 /* Restart (0=Normal; 1=Restart) */
335 #define AL_OBJ_CTR_FLAG2 0x0004 /* Comms Lost (0=Normal; 1=Lost) */
336 #define AL_OBJ_CTR_FLAG3 0x0008 /* Remote Force (0=Normal; 1=Forced) */
337 #define AL_OBJ_CTR_FLAG4 0x0010 /* Local Force (0=Normal; 1=Forced) */
338 #define AL_OBJ_CTR_FLAG5 0x0020 /* Roll-over (0=Normal; 1=Roll-Over) */
339 #define AL_OBJ_CTR_FLAG6 0x0040 /* Discontinuity (0=Normal; 1=Discontinuity) */
340 #define AL_OBJ_CTR_FLAG7 0x0080 /* Reserved */
342 /***************************************************************************/
343 /* Analog Input Objects */
344 #define AL_OBJ_AI_ALL 0x1E00 /* 30 00 Analog Input All Variations */
345 #define AL_OBJ_AI_32 0x1E01 /* 30 01 32-Bit Analog Input */
346 #define AL_OBJ_AI_16 0x1E02 /* 30 02 16-Bit Analog Input */
347 #define AL_OBJ_AI_32NF 0x1E03 /* 30 03 32-Bit Analog Input Without Flag */
348 #define AL_OBJ_AI_16NF 0x1E04 /* 30 04 16-Bit Analog Input Without Flag */
349 #define AL_OBJ_AI_FLT 0x1E05 /* 30 05 32-Bit Floating Point Input */
350 #define AL_OBJ_AI_DBL 0x1E06 /* 30 06 64-Bit Floating Point Input */
351 /* 0x1F01 31 01 32-Bit Frozen Analog Input */
352 /* 0x1F02 31 02 16-Bit Frozen Analog Input */
353 /* 0x1F03 31 03 32-Bit Frozen Analog Input w/ Time of Freeze */
354 /* 0x1F04 31 04 16-Bit Frozen Analog Input w/ Time of Freeze */
355 /* 0x1F05 31 05 32-Bit Frozen Analog Input Without Flag */
356 /* 0x1F06 31 06 16-Bit Frozen Analog Input Without Flag */
357 #define AL_OBJ_AIF_FLT 0x1F07 /* 31 07 32-Bit Frozen Floating Point Input */
358 #define AL_OBJ_AIF_DBL 0x1F08 /* 31 08 64-Bit Frozen Floating Point Input */
359 #define AL_OBJ_AIC_ALL 0x2000 /* 32 00 Analog Input Change All Variations */
360 #define AL_OBJ_AIC_32NT 0x2001 /* 32 01 32-Bit Analog Change Event w/o Time */
361 #define AL_OBJ_AIC_16NT 0x2002 /* 32 02 16-Bit Analog Change Event w/o Time */
362 #define AL_OBJ_AIC_32T 0x2003 /* 32 03 32-Bit Analog Change Event w/ Time */
363 #define AL_OBJ_AIC_16T 0x2004 /* 32 04 16-Bit Analog Change Event w/ Time */
364 #define AL_OBJ_AIC_FLTNT 0x2005 /* 32 05 32-Bit Floating Point Change Event w/o Time*/
365 #define AL_OBJ_AIC_DBLNT 0x2006 /* 32 06 64-Bit Floating Point Change Event w/o Time*/
366 #define AL_OBJ_AIC_FLTT 0x2007 /* 32 07 32-Bit Floating Point Change Event w/ Time*/
367 #define AL_OBJ_AIC_DBLT 0x2008 /* 32 08 64-Bit Floating Point Change Event w/ Time*/
368 /* 0x2101 33 01 32-Bit Frozen Analog Event w/o Time */
369 /* 0x2102 33 02 16-Bit Frozen Analog Event w/o Time */
370 /* 0x2103 33 03 32-Bit Frozen Analog Event w/ Time */
371 /* 0x2104 33 04 16-Bit Frozen Analog Event w/ Time */
372 #define AL_OBJ_AIFC_FLTNT 0x2105 /* 33 05 32-Bit Floating Point Frozen Change Event w/o Time*/
373 #define AL_OBJ_AIFC_DBLNT 0x2106 /* 33 06 64-Bit Floating Point Frozen Change Event w/o Time*/
374 #define AL_OBJ_AIFC_FLTT 0x2107 /* 33 07 32-Bit Floating Point Frozen Change Event w/ Time*/
375 #define AL_OBJ_AIFC_DBLT 0x2108 /* 33 08 64-Bit Floating Point Frozen Change Event w/ Time*/
378 /* Analog Input Quality Flags */
379 #define AL_OBJ_AI_FLAG0 0x0001 /* Point Online (0=Offline; 1=Online) */
380 #define AL_OBJ_AI_FLAG1 0x0002 /* Restart (0=Normal; 1=Restart) */
381 #define AL_OBJ_AI_FLAG2 0x0004 /* Comms Lost (0=Normal; 1=Lost) */
382 #define AL_OBJ_AI_FLAG3 0x0008 /* Remote Force (0=Normal; 1=Forced) */
383 #define AL_OBJ_AI_FLAG4 0x0010 /* Local Force (0=Normal; 1=Forced) */
384 #define AL_OBJ_AI_FLAG5 0x0020 /* Over-Range (0=Normal; 1=Over-Range) */
385 #define AL_OBJ_AI_FLAG6 0x0040 /* Reference Check (0=Normal; 1=Error) */
386 #define AL_OBJ_AI_FLAG7 0x0080 /* Reserved */
388 /***************************************************************************/
389 /* Analog Output Objects */
390 #define AL_OBJ_AO_32 0x2801 /* 40 01 32-Bit Analog Output Status */
391 #define AL_OBJ_AO_16 0x2802 /* 40 02 16-Bit Analog Output Status */
392 #define AL_OBJ_AO_FLT 0x2803 /* 40 03 32-Bit Floating Point Output Status */
393 #define AL_OBJ_AO_DBL 0x2804 /* 40 04 64-Bit Floating Point Output Status */
394 #define AL_OBJ_AO_32OPB 0x2901 /* 41 01 32-Bit Analog Output Block */
395 #define AL_OBJ_AO_16OPB 0x2902 /* 41 02 16-Bit Analog Output Block */
396 #define AL_OBJ_AO_FLTOPB 0x2903 /* 41 03 32-Bit Floating Point Output Block */
397 #define AL_OBJ_AO_DBLOPB 0x2904 /* 41 04 64-Bit Floating Point Output Block */
399 /* Analog Output Quality Flags */
400 #define AL_OBJ_AO_FLAG0 0x0001 /* Point Online (0=Offline; 1=Online) */
401 #define AL_OBJ_AO_FLAG1 0x0002 /* Restart (0=Normal; 1=Restart) */
402 #define AL_OBJ_AO_FLAG2 0x0004 /* Comms Lost (0=Normal; 1=Lost) */
403 #define AL_OBJ_AO_FLAG3 0x0008 /* Remote Force (0=Normal; 1=Forced) */
404 #define AL_OBJ_AO_FLAG4 0x0010 /* Local Force (0=Normal; 1=Forced) */
405 #define AL_OBJ_AO_FLAG5 0x0020 /* Reserved */
406 #define AL_OBJ_AO_FLAG6 0x0040 /* Reserved */
407 #define AL_OBJ_AO_FLAG7 0x0080 /* Reserved */
409 /***************************************************************************/
411 #define AL_OBJ_TD 0x3201 /* 50 01 Time and Date */
412 #define AL_OBJ_TDI 0x3202 /* 50 02 Time and Date w/ Interval */
413 #define AL_OBJ_TDCTO 0x3301 /* 51 01 Time and Date CTO */
414 #define AL_OBJ_UTDCTO 0x3302 /* 51 02 Unsynchronized Time and Date CTO */
415 #define AL_OBJ_TDELAYC 0x3401 /* 52 01 Time Delay Coarse */
416 #define AL_OBJ_TDELAYF 0x3402 /* 52 02 Time Delay Fine */
418 /***************************************************************************/
419 /* Class Data Objects */
420 #define AL_OBJ_CLASS0 0x3C01 /* 60 01 Class 0 Data */
421 #define AL_OBJ_CLASS1 0x3C02 /* 60 02 Class 1 Data */
422 #define AL_OBJ_CLASS2 0x3C03 /* 60 03 Class 2 Data */
423 #define AL_OBJ_CLASS3 0x3C04 /* 60 04 Class 3 Data */
425 /***************************************************************************/
427 #define AL_OBJ_IIN 0x5001 /* 80 01 Internal Indications */
429 /***************************************************************************/
430 /* End of Application Layer Data Object Definitions */
431 /***************************************************************************/
433 /* Initialize the protocol and registered fields */
434 static int proto_dnp3 = -1;
435 static int hf_dnp3_start = -1;
436 static int hf_dnp3_len = -1;
437 static int hf_dnp3_ctl = -1;
438 static int hf_dnp3_ctl_prifunc = -1;
439 static int hf_dnp3_ctl_secfunc = -1;
440 static int hf_dnp3_ctl_dir = -1;
441 static int hf_dnp3_ctl_prm = -1;
442 static int hf_dnp3_ctl_fcb = -1;
443 static int hf_dnp3_ctl_fcv = -1;
444 static int hf_dnp3_ctl_dfc = -1;
445 static int hf_dnp3_dst = -1;
446 static int hf_dnp3_src = -1;
447 static int hf_dnp_hdr_CRC = -1;
448 static int hf_dnp_hdr_CRC_bad = -1;
449 static int hf_dnp3_tr_ctl = -1;
450 static int hf_dnp3_tr_fin = -1;
451 static int hf_dnp3_tr_fir = -1;
452 static int hf_dnp3_tr_seq = -1;
453 static int hf_dnp3_al_ctl = -1;
454 static int hf_dnp3_al_fir = -1;
455 static int hf_dnp3_al_fin = -1;
456 static int hf_dnp3_al_con = -1;
457 static int hf_dnp3_al_seq = -1;
458 static int hf_dnp3_al_func = -1;
459 /* Added for Application Layer Decoding */
460 static int hf_dnp3_al_iin = -1;
461 static int hf_dnp3_al_iin_bmsg = -1;
462 static int hf_dnp3_al_iin_cls1d = -1;
463 static int hf_dnp3_al_iin_cls2d = -1;
464 static int hf_dnp3_al_iin_cls3d = -1;
465 static int hf_dnp3_al_iin_tsr = -1;
466 static int hf_dnp3_al_iin_dol = -1;
467 static int hf_dnp3_al_iin_dt = -1;
468 static int hf_dnp3_al_iin_rst = -1;
469 static int hf_dnp3_al_iin_obju = -1;
470 static int hf_dnp3_al_iin_pioor = -1;
471 static int hf_dnp3_al_iin_ebo = -1;
472 static int hf_dnp3_al_iin_oae = -1;
473 static int hf_dnp3_al_iin_cc = -1;
474 static int hf_dnp3_al_obj = -1;
475 static int hf_dnp3_al_objq_index = -1;
476 static int hf_dnp3_al_objq_code = -1;
477 static int hf_dnp3_al_range_start8 = -1;
478 static int hf_dnp3_al_range_stop8 = -1;
479 static int hf_dnp3_al_range_start16 = -1;
480 static int hf_dnp3_al_range_stop16 = -1;
481 static int hf_dnp3_al_range_start32 = -1;
482 static int hf_dnp3_al_range_stop32 = -1;
483 static int hf_dnp3_al_range_abs8 = -1;
484 static int hf_dnp3_al_range_abs16 = -1;
485 static int hf_dnp3_al_range_abs32 = -1;
486 static int hf_dnp3_al_range_quant8 = -1;
487 static int hf_dnp3_al_range_quant16 = -1;
488 static int hf_dnp3_al_range_quant32 = -1;
489 static int hf_dnp3_al_index8 = -1;
490 static int hf_dnp3_al_index16 = -1;
491 static int hf_dnp3_al_index32 = -1;
493 /*static int hf_dnp3_al_objq = -1;
494 static int hf_dnp3_al_nobj = -1; */
495 static int hf_dnp3_al_ptnum = -1;
496 static int hf_dnp3_al_biq_b0 = -1;
497 static int hf_dnp3_al_biq_b1 = -1;
498 static int hf_dnp3_al_biq_b2 = -1;
499 static int hf_dnp3_al_biq_b3 = -1;
500 static int hf_dnp3_al_biq_b4 = -1;
501 static int hf_dnp3_al_biq_b5 = -1;
502 static int hf_dnp3_al_biq_b6 = -1;
503 static int hf_dnp3_al_biq_b7 = -1;
504 static int hf_dnp3_al_boq_b0 = -1;
505 static int hf_dnp3_al_boq_b1 = -1;
506 static int hf_dnp3_al_boq_b2 = -1;
507 static int hf_dnp3_al_boq_b3 = -1;
508 static int hf_dnp3_al_boq_b4 = -1;
509 static int hf_dnp3_al_boq_b5 = -1;
510 static int hf_dnp3_al_boq_b6 = -1;
511 static int hf_dnp3_al_boq_b7 = -1;
512 static int hf_dnp3_al_ctrq_b0 = -1;
513 static int hf_dnp3_al_ctrq_b1 = -1;
514 static int hf_dnp3_al_ctrq_b2 = -1;
515 static int hf_dnp3_al_ctrq_b3 = -1;
516 static int hf_dnp3_al_ctrq_b4 = -1;
517 static int hf_dnp3_al_ctrq_b5 = -1;
518 static int hf_dnp3_al_ctrq_b6 = -1;
519 static int hf_dnp3_al_ctrq_b7 = -1;
520 static int hf_dnp3_al_aiq_b0 = -1;
521 static int hf_dnp3_al_aiq_b1 = -1;
522 static int hf_dnp3_al_aiq_b2 = -1;
523 static int hf_dnp3_al_aiq_b3 = -1;
524 static int hf_dnp3_al_aiq_b4 = -1;
525 static int hf_dnp3_al_aiq_b5 = -1;
526 static int hf_dnp3_al_aiq_b6 = -1;
527 static int hf_dnp3_al_aiq_b7 = -1;
528 static int hf_dnp3_al_aoq_b0 = -1;
529 static int hf_dnp3_al_aoq_b1 = -1;
530 static int hf_dnp3_al_aoq_b2 = -1;
531 static int hf_dnp3_al_aoq_b3 = -1;
532 static int hf_dnp3_al_aoq_b4 = -1;
533 static int hf_dnp3_al_aoq_b5 = -1;
534 static int hf_dnp3_al_aoq_b6 = -1;
535 static int hf_dnp3_al_aoq_b7 = -1;
536 static int hf_dnp3_al_timestamp = -1;
537 static int hf_dnp3_al_rel_timestamp = -1;
538 static int hf_dnp3_al_ana16 = -1;
539 static int hf_dnp3_al_ana32 = -1;
540 static int hf_dnp3_al_anaflt = -1;
541 static int hf_dnp3_al_anadbl = -1;
542 static int hf_dnp3_al_bit = -1;
543 static int hf_dnp3_al_2bit = -1;
544 static int hf_dnp3_al_cnt16 = -1;
545 static int hf_dnp3_al_cnt32 = -1;
546 static int hf_dnp3_al_ctrlstatus = -1;
547 static int hf_dnp3_al_anaout16 = -1;
548 static int hf_dnp3_al_anaout32 = -1;
549 static int hf_dnp3_al_anaoutflt = -1;
550 static int hf_dnp3_al_anaoutdbl = -1;
552 /***************************************************************************/
553 /* Value String Look-Ups */
554 /***************************************************************************/
555 static const value_string dnp3_ctl_func_pri_vals[] = {
556 { DL_FUNC_RESET_LINK, "Reset of Remote Link" },
557 { DL_FUNC_RESET_PROC, "Reset of User Process" },
558 { DL_FUNC_TEST_LINK, "Test Function For Link" },
559 { DL_FUNC_USER_DATA, "User Data" },
560 { DL_FUNC_UNC_DATA, "Unconfirmed User Data" },
561 { DL_FUNC_LINK_STAT, "Request Link Status" },
565 static const value_string dnp3_ctl_func_sec_vals[] = {
566 { DL_FUNC_ACK, "ACK" },
567 { DL_FUNC_NACK, "NACK" },
568 { DL_FUNC_STAT_LINK, "Status of Link" },
569 { DL_FUNC_NO_FUNC, "Link Service Not Functioning" },
570 { DL_FUNC_NOT_IMPL, "Link Service Not Used or Implemented" },
574 static const value_string dnp3_ctl_flags_pri_vals[] _U_ = {
575 { DNP3_CTL_DIR, "DIR" },
576 { DNP3_CTL_PRM, "PRM" },
577 { DNP3_CTL_FCB, "FCB" },
578 { DNP3_CTL_FCV, "FCV" },
582 static const value_string dnp3_ctl_flags_sec_vals[] _U_ = {
583 { DNP3_CTL_DIR, "DIR" },
584 { DNP3_CTL_PRM, "PRM" },
585 { DNP3_CTL_RES, "RES" },
586 { DNP3_CTL_DFC, "DFC" },
590 static const value_string dnp3_tr_flags_vals[] _U_ = {
591 { DNP3_TR_FIN, "FIN" },
592 { DNP3_TR_FIR, "FIR" },
596 static const value_string dnp3_al_flags_vals[] _U_ = {
597 { DNP3_AL_FIR, "FIR" },
598 { DNP3_AL_FIN, "FIN" },
599 { DNP3_AL_CON, "CON" },
603 /* Application Layer Function Code Values */
604 static const value_string dnp3_al_func_vals[] = {
605 { AL_FUNC_CONFIRM, "Confirm" },
606 { AL_FUNC_READ, "Read" },
607 { AL_FUNC_WRITE, "Write" },
608 { AL_FUNC_SELECT, "Select" },
609 { AL_FUNC_OPERATE, "Operate" },
610 { AL_FUNC_DIROP, "Direct Operate" },
611 { AL_FUNC_DIROPNACK, "Direct Operate No Ack" },
612 { AL_FUNC_FRZ, "Immediate Freeze" },
613 { AL_FUNC_FRZNACK, "Immediate Freeze No Ack" },
614 { AL_FUNC_FRZCLR, "Freeze and Clear" },
615 { AL_FUNC_FRZCLRNACK, "Freeze and Clear No ACK" },
616 { AL_FUNC_FRZT, "Freeze With Time" },
617 { AL_FUNC_FRZTNACK, "Freeze With Time No ACK" },
618 { AL_FUNC_COLDRST, "Cold Restart" },
619 { AL_FUNC_WARMRST, "Warm Restart" },
620 { AL_FUNC_INITDATA, "Initialize Data" },
621 { AL_FUNC_INITAPP, "Initialize Application" },
622 { AL_FUNC_STARTAPP, "Start Application" },
623 { AL_FUNC_STOPAPP, "Stop Application" },
624 { AL_FUNC_SAVECFG, "Save Configuration" },
625 { AL_FUNC_ENSPMSG, "Enable Spontaneous Messages" },
626 { AL_FUNC_DISSPMSG, "Disable Spontaneous Messages" },
627 { AL_FUNC_ASSIGNCL, "Assign Classes" },
628 { AL_FUNC_DELAYMST, "Delay Measurement" },
629 { AL_FUNC_RESPON, "Response" },
630 { AL_FUNC_UNSOLI, "Unsolicited Response" },
634 /* Application Layer Internal Indication (IIN) bit Values */
635 static const value_string dnp3_al_iin_vals[] _U_ = {
636 { AL_IIN_BMSG, "Broadcast message Rx'd" },
637 { AL_IIN_CLS1D, "Class 1 Data Available" },
638 { AL_IIN_CLS2D, "Class 2 Data Available" },
639 { AL_IIN_CLS3D, "Class 3 Data Available" },
640 { AL_IIN_TSR, "Time Sync Required from Master" },
641 { AL_IIN_DOL, "Digital Outputs in Local Mode" },
642 { AL_IIN_DT, "Device Trouble" },
643 { AL_IIN_RST, "Device Restart" },
644 { AL_IIN_OBJU, "Requested Objects Unknown" },
645 { AL_IIN_PIOOR, "Parameters Invalid or Out of Range" },
646 { AL_IIN_EBO, "Event Buffer Overflow" },
647 { AL_IIN_OAE, "Operation Already Executing" },
648 { AL_IIN_CC, "Device Configuration Corrupt" },
652 /* Application Layer Object Qualifier Index Values When Qualifier Code != 11 */
653 static const value_string dnp3_al_objq_index_vals[] = {
654 { AL_OBJQL_IDX_NI, "None" },
655 { AL_OBJQL_IDX_1O, "1-Octet Indexing" },
656 { AL_OBJQL_IDX_2O, "2-Octet Indexing" },
657 { AL_OBJQL_IDX_4O, "4-Octet Indexing" },
658 { AL_OBJQL_IDX_1OS, "1-Octet Object Size" },
659 { AL_OBJQL_IDX_2OS, "2-Octet Object Size" },
660 { AL_OBJQL_IDX_4OS, "4-Octet Object Size" },
664 /* Application Layer Object Qualifier Code Values */
665 static const value_string dnp3_al_objq_code_vals[] = {
666 { AL_OBJQL_CODE_SSI8, "8-bit Start and Stop Indices" },
667 { AL_OBJQL_CODE_SSI16, "16-bit Start and Stop Indices" },
668 { AL_OBJQL_CODE_SSI32, "32-bit Start and Stop Indices" },
669 { AL_OBJQL_CODE_AA8, "8-bit Absolute Address in Range Field" },
670 { AL_OBJQL_CODE_AA16, "16-bit Absolute Address in Range Field" },
671 { AL_OBJQL_CODE_AA32, "32-bit Absolute Address in Range Field" },
672 { AL_OBJQL_CODE_R0, "No Range Field" },
673 { AL_OBJQL_CODE_SF8, "8-bit Single Field Quantity" },
674 { AL_OBJQL_CODE_SF16, "16-bit Single Field Quantity" },
675 { AL_OBJQL_CODE_SF32, "32-bit Single Field Quantity" },
676 { AL_OBJQL_CODE_FF, "Free-format Qualifier" },
680 /* Application Layer Data Object Values */
681 static const value_string dnp3_al_obj_vals[] = {
682 { AL_OBJ_BI_ALL, "Binary Input All Variations (Obj:01, Var:All)" },
683 { AL_OBJ_BI_1BIT, "Single-Bit Binary Input (Obj:01, Var:01)" },
684 { AL_OBJ_BI_STAT, "Binary Input With Status (Obj:01, Var:02)" },
685 { AL_OBJ_BIC_ALL, "Binary Input Change All Variations (Obj:02, Var:All)" },
686 { AL_OBJ_BIC_NOTIME, "Binary Input Change Without Time (Obj:02, Var:01)" },
687 { AL_OBJ_BIC_TIME, "Binary Input Change With Time (Obj:02, Var:02)" },
688 { AL_OBJ_BIC_RTIME, "Binary Input Change With Relative Time (Obj:02, Var:03)" },
689 { AL_OBJ_2BI_ALL, "Double-bit Input All Variations (Obj:03, Var:All)" },
690 { AL_OBJ_2BI_NF, "Double-bit Input No Flags (Obj:03, Var:01)" },
691 { AL_OBJ_2BI_STAT, "Double-bit Input With Status (Obj:03, Var:02)" },
692 { AL_OBJ_2BIC_NOTIME, "Double-bit Input Change Without Time (Obj:04, Var:01)" },
693 { AL_OBJ_2BIC_TIME, "Double-bit Input Change With Time (Obj:04, Var:02)" },
694 { AL_OBJ_2BIC_RTIME, "Double-bit Input Change With Relative Time (Obj:04, Var:03)" },
695 { AL_OBJ_BO, "Binary Output (Obj:10, Var:01)" },
696 { AL_OBJ_BO_STAT, "Binary Output Status (Obj:10, Var:02)" },
697 { AL_OBJ_CTLOP_BLK, "Control Relay Output Block (Obj:12, Var:01)" },
698 { AL_OBJ_CTR_ALL, "Binary Counter All Variations (Obj:20, Var:All)" },
699 { AL_OBJ_CTR_32, "32-Bit Binary Counter (Obj:20, Var:01)" },
700 { AL_OBJ_CTR_16, "16-Bit Binary Counter (Obj:20, Var:02)" },
701 { AL_OBJ_DCTR_32, "32-Bit Binary Delta Counter (Obj:20, Var:03)" },
702 { AL_OBJ_DCTR_16, "16-Bit Binary Delta Counter (Obj:20, Var:04)" },
703 { AL_OBJ_CTR_32NF, "32-Bit Binary Counter Without Flag (Obj:20, Var:05)" },
704 { AL_OBJ_CTR_16NF, "16-Bit Binary Counter Without Flag (Obj:20, Var:06)" },
705 { AL_OBJ_DCTR_32NF, "32-Bit Binary Delta Counter Without Flag (Obj:20, Var:07)" },
706 { AL_OBJ_DCTR_16NF, "16-Bit Binary Delta Counter Without Flag (Obj:20, Var:08)" },
707 { AL_OBJ_FCTR_ALL, "Frozen Binary Counter All Variations (Obj:21, Var:All)" },
708 { AL_OBJ_FCTR_32, "32-Bit Frozen Binary Counter (Obj:21, Var:01)" },
709 { AL_OBJ_FCTR_16, "16-Bit Frozen Binary Counter (Obj:21, Var:02)" },
710 { AL_OBJ_FDCTR_32, "32-Bit Frozen Binary Delta Counter (Obj:21, Var:03)" },
711 { AL_OBJ_FDCTR_16, "16-Bit Frozen Binary Delta Counter (Obj:21, Var:04)" },
712 { AL_OBJ_FCTR_32T, "32-Bit Frozen Binary Counter (Obj:21, Var:01)" },
713 { AL_OBJ_FCTR_16T, "16-Bit Frozen Binary Counter (Obj:21, Var:02)" },
714 { AL_OBJ_FDCTR_32T, "32-Bit Frozen Binary Delta Counter (Obj:21, Var:03)" },
715 { AL_OBJ_FDCTR_16T, "16-Bit Frozen Binary Delta Counter (Obj:21, Var:04)" },
716 { AL_OBJ_FCTR_32NF, "32-Bit Frozen Binary Counter Without Flag (Obj:21, Var:05)" },
717 { AL_OBJ_FCTR_16NF, "16-Bit Frozen Binary Counter Without Flag (Obj:21, Var:06)" },
718 { AL_OBJ_FDCTR_32NF, "32-Bit Frozen Binary Delta Counter Without Flag (Obj:21, Var:07)" },
719 { AL_OBJ_FDCTR_16NF, "16-Bit Frozen Binary Delta Counter Without Flag (Obj:21, Var:08)" },
720 { AL_OBJ_CTRC_ALL, "Binary Counter Change All Variations (Obj:22, Var:All)" },
721 { AL_OBJ_CTRC_32, "32-Bit Counter Change Event w/o Time (Obj:22, Var:01)" },
722 { AL_OBJ_CTRC_16, "16-Bit Counter Change Event w/o Time (Obj:22, Var:02)" },
723 { AL_OBJ_DCTRC_32, "32-Bit Delta Counter Change Event w/o Time (Obj:22, Var:03)" },
724 { AL_OBJ_DCTRC_16, "16-Bit Delta Counter Change Event w/o Time (Obj:22, Var:04)" },
725 { AL_OBJ_CTRC_32T, "32-Bit Counter Change Event with Time (Obj:22, Var:05)" },
726 { AL_OBJ_CTRC_16T, "16-Bit Counter Change Event with Time (Obj:22, Var:06)" },
727 { AL_OBJ_DCTRC_32T, "32-Bit Delta Counter Change Event with Time (Obj:22, Var:07)" },
728 { AL_OBJ_DCTRC_16T, "16-Bit Delta Counter Change Event with Time (Obj:22, Var:08)" },
729 { AL_OBJ_FCTRC_ALL, "Frozen Binary Counter Change All Variations (Obj:23, Var:All)" },
730 { AL_OBJ_FCTRC_32, "32-Bit Frozen Counter Change Event w/o Time (Obj:23, Var:01)" },
731 { AL_OBJ_FCTRC_16, "16-Bit Frozen Counter Change Event w/o Time (Obj:23, Var:02)" },
732 { AL_OBJ_FDCTRC_32, "32-Bit Frozen Delta Counter Change Event w/o Time (Obj:23, Var:03)" },
733 { AL_OBJ_FDCTRC_16, "16-Bit Frozen Delta Counter Change Event w/o Time (Obj:23, Var:04)" },
734 { AL_OBJ_FCTRC_32T, "32-Bit Frozen Counter Change Event with Time (Obj:23, Var:05)" },
735 { AL_OBJ_FCTRC_16T, "16-Bit Frozen Counter Change Event with Time (Obj:23, Var:06)" },
736 { AL_OBJ_FDCTRC_32T, "32-Bit Frozen Delta Counter Change Event with Time (Obj:23, Var:07)" },
737 { AL_OBJ_FDCTRC_16T, "16-Bit Frozen Delta Counter Change Event with Time (Obj:23, Var:08)" },
738 { AL_OBJ_AI_ALL, "Analog Input All Variations (Obj:30, Var:All)" },
739 { AL_OBJ_AI_32, "32-Bit Analog Input (Obj:30, Var:01)" },
740 { AL_OBJ_AI_16, "16-Bit Analog Input (Obj:30, Var:02)" },
741 { AL_OBJ_AI_32NF, "32-Bit Analog Input Without Flag (Obj:30, Var:03)" },
742 { AL_OBJ_AI_16NF, "16-Bit Analog Input Without Flag (Obj:30, Var:04)" },
743 { AL_OBJ_AI_FLT, "32-Bit Floating Point Input (Obj:30, Var:05)" },
744 { AL_OBJ_AI_DBL, "64-Bit Floating Point Input (Obj:30, Var:06)" },
745 { AL_OBJ_AIF_FLT, "32-Bit Frozen Floating Point Input (Obj:31, Var:07)" },
746 { AL_OBJ_AIF_DBL, "64-Bit Frozen Floating Point Input (Obj:31, Var:08)" },
747 { AL_OBJ_AIC_ALL, "Analog Input Change All Variations (Obj:32, Var:All)" },
748 { AL_OBJ_AIC_32NT, "32-Bit Analog Change Event w/o Time (Obj:32, Var:01)" },
749 { AL_OBJ_AIC_16NT, "16-Bit Analog Change Event w/o Time (Obj:32, Var:02)" },
750 { AL_OBJ_AIC_32T, "32-Bit Analog Change Event with Time (Obj:32, Var:03)" },
751 { AL_OBJ_AIC_16T, "16-Bit Analog Change Event with Time (Obj:32, Var:04)" },
752 { AL_OBJ_AIC_FLTNT, "32-Bit Floating Point Change Event w/o Time (Obj:32, Var:05)" },
753 { AL_OBJ_AIC_DBLNT, "64-Bit Floating Point Change Event w/o Time (Obj:32, Var:06)" },
754 { AL_OBJ_AIC_FLTT, "32-Bit Floating Point Change Event w/ Time (Obj:32, Var:07)" },
755 { AL_OBJ_AIC_DBLT, "64-Bit Floating Point Change Event w/ Time (Obj:32, Var:08)" },
756 { AL_OBJ_AIFC_FLTNT, "32-Bit Floating Point Frozen Change Event w/o Time (Obj:33, Var:05)" },
757 { AL_OBJ_AIFC_DBLNT, "64-Bit Floating Point Frozen Change Event w/o Time (Obj:33, Var:06)" },
758 { AL_OBJ_AIFC_FLTT, "32-Bit Floating Point Frozen Change Event w/ Time (Obj:33, Var:07)" },
759 { AL_OBJ_AIFC_DBLT, "64-Bit Floating Point Frozen Change Event w/ Time (Obj:33, Var:08)" },
760 { AL_OBJ_AO_32, "32-Bit Analog Output Status (Obj:40, Var:01)" },
761 { AL_OBJ_AO_16, "16-Bit Analog Output Status (Obj:40, Var:02)" },
762 { AL_OBJ_AO_FLT, "32-Bit Floating Point Output Status (Obj:40, Var:03)" },
763 { AL_OBJ_AO_DBL, "64-Bit Floating Point Output Status (Obj:40, Var:04)" },
764 { AL_OBJ_AO_32OPB, "32-Bit Analog Output Block (Obj:41, Var:01)" },
765 { AL_OBJ_AO_16OPB, "16-Bit Analog Output Block (Obj:41, Var:02)" },
766 { AL_OBJ_AO_FLTOPB, "32-Bit Floating Point Output Block (Obj:41, Var:03)" },
767 { AL_OBJ_AO_DBLOPB, "64-Bit Floating Point Output Block (Obj:41, Var:04)" },
768 { AL_OBJ_TD, "Time and Date (Obj:50, Var:01)" },
769 { AL_OBJ_TDCTO, "Time and Date CTO (Obj:51, Var:01)" },
770 { AL_OBJ_TDELAYF, "Time Delay - Fine (Obj:52, Var:02)" },
771 { AL_OBJ_CLASS0, "Class 0 Data (Obj:60, Var:01)" },
772 { AL_OBJ_CLASS1, "Class 1 Data (Obj:60, Var:02)" },
773 { AL_OBJ_CLASS2, "Class 2 Data (Obj:60, Var:03)" },
774 { AL_OBJ_CLASS3, "Class 3 Data (Obj:60, Var:04)" },
775 { AL_OBJ_IIN, "Internal Indications (Obj:80, Var:01)" },
779 /* Application Layer Control Code 'Code' Values */
780 static const value_string dnp3_al_ctlc_code_vals[] = {
781 { AL_OBJCTLC_CODE0, "NUL Operation" },
782 { AL_OBJCTLC_CODE1, "Pulse On" },
783 { AL_OBJCTLC_CODE2, "Pulse Off" },
784 { AL_OBJCTLC_CODE3, "Latch On" },
785 { AL_OBJCTLC_CODE4, "Latch Off" },
789 /* Application Layer Control Code 'Misc' Values */
790 static const value_string dnp3_al_ctlc_misc_vals[] = {
791 { AL_OBJCTLC_QUEUE, "Queue" },
792 { AL_OBJCTLC_CLEAR, "Clear" },
796 /* Application Layer Control Code 'Trip/Close' Values */
797 static const value_string dnp3_al_ctlc_tc_vals[] = {
798 { AL_OBJCTLC_TC0, "NUL" },
799 { AL_OBJCTLC_TC1, "Close" },
800 { AL_OBJCTLC_TC2, "Trip" },
804 /* Application Layer Control Status Values */
805 static const value_string dnp3_al_ctl_status_vals[] = {
806 { AL_OBJCTL_STAT0, "Req. Accepted/Init/Queued" },
807 { AL_OBJCTL_STAT1, "Req. Not Accepted; Arm-Timer Expired" },
808 { AL_OBJCTL_STAT2, "Req. Not Accepted; No 'SELECT' Received" },
809 { AL_OBJCTL_STAT3, "Req. Not Accepted; Format Err. in Ctl Req." },
810 { AL_OBJCTL_STAT4, "Ctl Oper. Not Supported For This Point" },
811 { AL_OBJCTL_STAT5, "Req. Not Accepted; Ctrl Queue Full/Point Active" },
812 { AL_OBJCTL_STAT6, "Req. Not Accepted; Ctrl Hardware Problems" },
813 { AL_OBJCTL_STAT7, "Req. Not Accepted; Local/Remote switch in Local" },
814 { AL_OBJCTL_STAT8, "Req. Not Accepted; Too many operations" },
815 { AL_OBJCTL_STAT9, "Req. Not Accepted; Insufficient authorization" },
816 { AL_OBJCTL_STAT10, "Req. Not Accepted; Local automation proc active" },
820 /* Application Layer Binary Input Quality Flag Values */
821 static const value_string dnp3_al_biflag_vals[] _U_ = {
822 { AL_OBJ_BI_FLAG0, "Online" },
823 { AL_OBJ_BI_FLAG1, "Restart" },
824 { AL_OBJ_BI_FLAG2, "Comm Fail" },
825 { AL_OBJ_BI_FLAG3, "Remote Forced" },
826 { AL_OBJ_BI_FLAG4, "Locally Forced" },
827 { AL_OBJ_BI_FLAG5, "Chatter Filter" },
831 /* Application Layer Counter Quality Flag Values */
832 static const value_string dnp3_al_ctrflag_vals[] _U_ = {
833 { AL_OBJ_CTR_FLAG0, "Online" },
834 { AL_OBJ_CTR_FLAG1, "Restart" },
835 { AL_OBJ_CTR_FLAG2, "Comm Fail" },
836 { AL_OBJ_CTR_FLAG3, "Remote Forced" },
837 { AL_OBJ_CTR_FLAG4, "Locally Forced" },
838 { AL_OBJ_CTR_FLAG5, "Roll-Over" },
839 { AL_OBJ_CTR_FLAG6, "Discontinuity" },
843 /* Application Layer Analog Input Quality Flag Values */
844 static const value_string dnp3_al_aiflag_vals[] _U_ = {
845 { AL_OBJ_AI_FLAG0, "Online" },
846 { AL_OBJ_AI_FLAG1, "Restart" },
847 { AL_OBJ_AI_FLAG2, "Comm Fail" },
848 { AL_OBJ_AI_FLAG3, "Remote Forced" },
849 { AL_OBJ_AI_FLAG4, "Locally Forced" },
850 { AL_OBJ_AI_FLAG5, "Over-Range" },
851 { AL_OBJ_AI_FLAG6, "Ref. Error" },
855 /* Initialize the subtree pointers */
856 static gint ett_dnp3 = -1;
857 static gint ett_dnp3_dl = -1;
858 static gint ett_dnp3_dl_ctl = -1;
859 static gint ett_dnp3_tr_ctl = -1;
860 static gint ett_dnp3_al_data = -1;
861 static gint ett_dnp3_al = -1;
862 static gint ett_dnp3_al_ctl = -1;
864 /* Added for Application Layer Decoding */
865 static gint ett_dnp3_al_iin = -1;
866 static gint ett_dnp3_al_obj = -1;
867 static gint ett_dnp3_al_obj_qualifier = -1;
868 static gint ett_dnp3_al_obj_range = -1;
869 static gint ett_dnp3_al_objdet = -1;
870 static gint ett_dnp3_al_obj_quality = -1;
871 static gint ett_dnp3_al_obj_point = -1;
873 /* Tables for reassembly of fragments. */
874 static GHashTable *al_fragment_table = NULL;
875 static GHashTable *al_reassembled_table = NULL;
877 /* ************************************************************************* */
878 /* Header values for reassembly */
879 /* ************************************************************************* */
880 static int hf_dnp3_fragment = -1;
881 static int hf_dnp3_fragments = -1;
882 static int hf_dnp3_fragment_overlap = -1;
883 static int hf_dnp3_fragment_overlap_conflict = -1;
884 static int hf_dnp3_fragment_multiple_tails = -1;
885 static int hf_dnp3_fragment_too_long_fragment = -1;
886 static int hf_dnp3_fragment_error = -1;
887 static int hf_dnp3_fragment_reassembled_in = -1;
888 static gint ett_dnp3_fragment = -1;
889 static gint ett_dnp3_fragments = -1;
891 static const fragment_items dnp3_frag_items = {
896 &hf_dnp3_fragment_overlap,
897 &hf_dnp3_fragment_overlap_conflict,
898 &hf_dnp3_fragment_multiple_tails,
899 &hf_dnp3_fragment_too_long_fragment,
900 &hf_dnp3_fragment_error,
901 &hf_dnp3_fragment_reassembled_in,
905 /* Conversation stuff, used for tracking application message fragments */
906 /* the number of entries in the memory chunk array */
907 #define dnp3_conv_init_count 50
909 /* Conversation structure */
911 guint conv_seq_number;
914 /* The conversation sequence number */
915 static guint seq_number = 0;
917 /* desegmentation of DNP3 over TCP */
918 static gboolean dnp3_desegment = TRUE;
920 /* Enum for different quality type fields */
929 /*****************************************************************/
931 /* CRC LOOKUP TABLE */
932 /* ================ */
933 /* The following CRC lookup table was generated automagically */
934 /* by the Rocksoft^tm Model CRC Algorithm Table Generation */
935 /* Program V1.0 using the following model parameters: */
937 /* Width : 2 bytes. */
939 /* Reverse : TRUE. */
941 /* For more information on the Rocksoft^tm Model CRC Algorithm, */
942 /* see the document titled "A Painless Guide to CRC Error */
943 /* Detection Algorithms" by Ross Williams */
944 /* (ross@guest.adelaide.edu.au.). This document is likely to be */
945 /* in the FTP archive "ftp.adelaide.edu.au/pub/rocksoft". */
947 /*****************************************************************/
949 static guint16 crctable[256] =
951 0x0000, 0x365E, 0x6CBC, 0x5AE2, 0xD978, 0xEF26, 0xB5C4, 0x839A,
952 0xFF89, 0xC9D7, 0x9335, 0xA56B, 0x26F1, 0x10AF, 0x4A4D, 0x7C13,
953 0xB26B, 0x8435, 0xDED7, 0xE889, 0x6B13, 0x5D4D, 0x07AF, 0x31F1,
954 0x4DE2, 0x7BBC, 0x215E, 0x1700, 0x949A, 0xA2C4, 0xF826, 0xCE78,
955 0x29AF, 0x1FF1, 0x4513, 0x734D, 0xF0D7, 0xC689, 0x9C6B, 0xAA35,
956 0xD626, 0xE078, 0xBA9A, 0x8CC4, 0x0F5E, 0x3900, 0x63E2, 0x55BC,
957 0x9BC4, 0xAD9A, 0xF778, 0xC126, 0x42BC, 0x74E2, 0x2E00, 0x185E,
958 0x644D, 0x5213, 0x08F1, 0x3EAF, 0xBD35, 0x8B6B, 0xD189, 0xE7D7,
959 0x535E, 0x6500, 0x3FE2, 0x09BC, 0x8A26, 0xBC78, 0xE69A, 0xD0C4,
960 0xACD7, 0x9A89, 0xC06B, 0xF635, 0x75AF, 0x43F1, 0x1913, 0x2F4D,
961 0xE135, 0xD76B, 0x8D89, 0xBBD7, 0x384D, 0x0E13, 0x54F1, 0x62AF,
962 0x1EBC, 0x28E2, 0x7200, 0x445E, 0xC7C4, 0xF19A, 0xAB78, 0x9D26,
963 0x7AF1, 0x4CAF, 0x164D, 0x2013, 0xA389, 0x95D7, 0xCF35, 0xF96B,
964 0x8578, 0xB326, 0xE9C4, 0xDF9A, 0x5C00, 0x6A5E, 0x30BC, 0x06E2,
965 0xC89A, 0xFEC4, 0xA426, 0x9278, 0x11E2, 0x27BC, 0x7D5E, 0x4B00,
966 0x3713, 0x014D, 0x5BAF, 0x6DF1, 0xEE6B, 0xD835, 0x82D7, 0xB489,
967 0xA6BC, 0x90E2, 0xCA00, 0xFC5E, 0x7FC4, 0x499A, 0x1378, 0x2526,
968 0x5935, 0x6F6B, 0x3589, 0x03D7, 0x804D, 0xB613, 0xECF1, 0xDAAF,
969 0x14D7, 0x2289, 0x786B, 0x4E35, 0xCDAF, 0xFBF1, 0xA113, 0x974D,
970 0xEB5E, 0xDD00, 0x87E2, 0xB1BC, 0x3226, 0x0478, 0x5E9A, 0x68C4,
971 0x8F13, 0xB94D, 0xE3AF, 0xD5F1, 0x566B, 0x6035, 0x3AD7, 0x0C89,
972 0x709A, 0x46C4, 0x1C26, 0x2A78, 0xA9E2, 0x9FBC, 0xC55E, 0xF300,
973 0x3D78, 0x0B26, 0x51C4, 0x679A, 0xE400, 0xD25E, 0x88BC, 0xBEE2,
974 0xC2F1, 0xF4AF, 0xAE4D, 0x9813, 0x1B89, 0x2DD7, 0x7735, 0x416B,
975 0xF5E2, 0xC3BC, 0x995E, 0xAF00, 0x2C9A, 0x1AC4, 0x4026, 0x7678,
976 0x0A6B, 0x3C35, 0x66D7, 0x5089, 0xD313, 0xE54D, 0xBFAF, 0x89F1,
977 0x4789, 0x71D7, 0x2B35, 0x1D6B, 0x9EF1, 0xA8AF, 0xF24D, 0xC413,
978 0xB800, 0x8E5E, 0xD4BC, 0xE2E2, 0x6178, 0x5726, 0x0DC4, 0x3B9A,
979 0xDC4D, 0xEA13, 0xB0F1, 0x86AF, 0x0535, 0x336B, 0x6989, 0x5FD7,
980 0x23C4, 0x159A, 0x4F78, 0x7926, 0xFABC, 0xCCE2, 0x9600, 0xA05E,
981 0x6E26, 0x5878, 0x029A, 0x34C4, 0xB75E, 0x8100, 0xDBE2, 0xEDBC,
982 0x91AF, 0xA7F1, 0xFD13, 0xCB4D, 0x48D7, 0x7E89, 0x246B, 0x1235
985 /*****************************************************************/
986 /* End of CRC Lookup Table */
987 /*****************************************************************/
989 /* calculates crc given a buffer of characters and a length of buffer */
991 calculateCRC(const void *buf, guint len) {
993 const guint8 *p = (const guint8 *)buf;
995 crc = crctable[(crc ^ *p++) & 0xff] ^ (crc >> 8);
999 /*****************************************************************/
1000 /* Adds text to item, with trailing "," if required */
1001 /*****************************************************************/
1003 add_item_text(proto_item *item, const gchar *text, gboolean comma_needed)
1006 proto_item_append_text(item, ", ");
1008 proto_item_append_text(item, text);
1012 /*****************************************************************/
1013 /* Application Layer Process Internal Indications (IIN) */
1014 /*****************************************************************/
1016 dnp3_al_process_iin(tvbuff_t *tvb, int offset, proto_tree *al_tree)
1021 proto_tree *iin_tree = NULL;
1022 gboolean comma_needed = FALSE;
1024 al_iin = tvb_get_ntohs(tvb, offset);
1026 tiin = proto_tree_add_uint_format(al_tree, hf_dnp3_al_iin, tvb, offset, 2, al_iin,
1027 "Internal Indications: ");
1028 if (al_iin & AL_IIN_RST) comma_needed = add_item_text(tiin, "Device Restart", comma_needed);
1029 if (al_iin & AL_IIN_DOL) comma_needed = add_item_text(tiin, "Digital Outputs in Local", comma_needed);
1030 if (al_iin & AL_IIN_DT) comma_needed = add_item_text(tiin, "Device Trouble", comma_needed);
1031 if (al_iin & AL_IIN_TSR) comma_needed = add_item_text(tiin, "Time Sync Required", comma_needed);
1032 if (al_iin & AL_IIN_CLS3D) comma_needed = add_item_text(tiin, "Class 3 Data Available", comma_needed);
1033 if (al_iin & AL_IIN_CLS2D) comma_needed = add_item_text(tiin, "Class 2 Data Available", comma_needed);
1034 if (al_iin & AL_IIN_CLS1D) comma_needed = add_item_text(tiin, "Class 1 Data Available", comma_needed);
1035 if (al_iin & AL_IIN_BMSG) comma_needed = add_item_text(tiin, "Broadcast Message Rx'd", comma_needed);
1036 if (al_iin & AL_IIN_CC) comma_needed = add_item_text(tiin, "Device Configuration Corrupt", comma_needed);
1037 if (al_iin & AL_IIN_OAE) comma_needed = add_item_text(tiin, "Operation Already Executing", comma_needed);
1038 if (al_iin & AL_IIN_EBO) comma_needed = add_item_text(tiin, "Event Buffer Overflow", comma_needed);
1039 if (al_iin & AL_IIN_PIOOR) comma_needed = add_item_text(tiin, "Parameters Invalid or Out of Range", comma_needed);
1040 if (al_iin & AL_IIN_OBJU) comma_needed = add_item_text(tiin, "Requested Objects Unknown", comma_needed);
1041 proto_item_append_text(tiin, " (0x%04x)", al_iin);
1043 iin_tree = proto_item_add_subtree(tiin, ett_dnp3_al_iin);
1044 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_rst, tvb, offset, 2, FALSE);
1045 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_dt, tvb, offset, 2, FALSE);
1046 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_dol, tvb, offset, 2, FALSE);
1047 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_tsr, tvb, offset, 2, FALSE);
1048 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_cls3d, tvb, offset, 2, FALSE);
1049 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_cls2d, tvb, offset, 2, FALSE);
1050 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_cls1d, tvb, offset, 2, FALSE);
1051 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_bmsg, tvb, offset, 2, FALSE);
1052 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_cc, tvb, offset, 2, FALSE);
1053 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_oae, tvb, offset, 2, FALSE);
1054 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_ebo, tvb, offset, 2, FALSE);
1055 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_pioor, tvb, offset, 2, FALSE);
1056 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_obju, tvb, offset, 2, FALSE);
1059 /*****************************************************************/
1060 /* Function to determine Application Layer Object Index size and */
1061 /* Point address. */
1062 /*****************************************************************/
1064 dnp3_al_obj_procindex(tvbuff_t *tvb, int offset, guint8 al_objq_index, guint32 *al_ptaddr, proto_tree *item_tree)
1067 proto_item *index_item;
1069 switch (al_objq_index)
1071 case AL_OBJQL_IDX_NI: /* No Index */
1073 index_item = proto_tree_add_text(item_tree, tvb, offset, 0, "Point Index: %u", *al_ptaddr);
1074 PROTO_ITEM_SET_GENERATED(index_item);
1076 case AL_OBJQL_IDX_1O:
1077 *al_ptaddr = tvb_get_guint8(tvb, offset);
1078 proto_tree_add_item(item_tree, hf_dnp3_al_index8, tvb, offset, 1, TRUE);
1081 case AL_OBJQL_IDX_2O:
1082 *al_ptaddr = tvb_get_letohs(tvb, offset);
1083 proto_tree_add_item(item_tree, hf_dnp3_al_index16, tvb, offset, 2, TRUE);
1086 case AL_OBJQL_IDX_4O:
1087 *al_ptaddr = tvb_get_letohl(tvb, offset);
1088 proto_tree_add_item(item_tree, hf_dnp3_al_index32, tvb, offset, 4, TRUE);
1095 /*****************************************************************/
1096 /* Function to add the same string to two separate tree items */
1097 /*****************************************************************/
1099 dnp3_append_2item_text(proto_item *item1, proto_item *item2, const gchar *text)
1101 proto_item_append_text(item1, text);
1102 proto_item_append_text(item2, text);
1105 /*****************************************************************/
1106 /* Function to Determine Application Layer Point Quality Flags & */
1107 /* add Point Quality Flag Sub-Tree */
1108 /*****************************************************************/
1110 dnp3_al_obj_quality(tvbuff_t *tvb, int offset, guint8 al_ptflags, proto_tree *point_tree, proto_item *point_item, enum QUALITY_TYPE type)
1113 proto_tree *quality_tree = NULL;
1114 proto_item *quality_item;
1115 int hf0 = 0, hf1 = 0, hf2 = 0, hf3 = 0, hf4 = 0, hf5 = 0, hf6 = 0, hf7 = 0;
1118 proto_item_append_text(point_item, " (Quality: ");
1119 quality_item = proto_tree_add_text(point_tree, tvb, offset, 1, "Quality: ");
1120 quality_tree = proto_item_add_subtree(quality_item, ett_dnp3_al_obj_quality);
1122 if (al_ptflags & AL_OBJ_BI_FLAG0) {
1123 dnp3_append_2item_text(point_item, quality_item, "Online");
1126 dnp3_append_2item_text(point_item, quality_item, "Offline");
1128 if (al_ptflags & AL_OBJ_BI_FLAG1) dnp3_append_2item_text(point_item, quality_item, ", Restart");
1129 if (al_ptflags & AL_OBJ_BI_FLAG2) dnp3_append_2item_text(point_item, quality_item, ", Comm Fail");
1130 if (al_ptflags & AL_OBJ_BI_FLAG3) dnp3_append_2item_text(point_item, quality_item, ", Remote Force");
1131 if (al_ptflags & AL_OBJ_BI_FLAG4) dnp3_append_2item_text(point_item, quality_item, ", Local Force");
1134 case BIN_IN: /* Binary Input Quality flags */
1135 if (al_ptflags & AL_OBJ_BI_FLAG5) dnp3_append_2item_text(point_item, quality_item, ", Chatter Filter");
1137 hf0 = hf_dnp3_al_biq_b0;
1138 hf1 = hf_dnp3_al_biq_b1;
1139 hf2 = hf_dnp3_al_biq_b2;
1140 hf3 = hf_dnp3_al_biq_b3;
1141 hf4 = hf_dnp3_al_biq_b4;
1142 hf5 = hf_dnp3_al_biq_b5;
1143 hf6 = hf_dnp3_al_biq_b6;
1144 hf7 = hf_dnp3_al_biq_b7;
1147 case BIN_OUT: /* Binary Output Quality flags */
1148 hf0 = hf_dnp3_al_boq_b0;
1149 hf1 = hf_dnp3_al_boq_b1;
1150 hf2 = hf_dnp3_al_boq_b2;
1151 hf3 = hf_dnp3_al_boq_b3;
1152 hf4 = hf_dnp3_al_boq_b4;
1153 hf5 = hf_dnp3_al_boq_b5;
1154 hf6 = hf_dnp3_al_boq_b6;
1155 hf7 = hf_dnp3_al_boq_b7;
1158 case ANA_IN: /* Analog Input Quality flags */
1159 if (al_ptflags & AL_OBJ_AI_FLAG5) dnp3_append_2item_text(point_item, quality_item, ", Over-Range");
1160 if (al_ptflags & AL_OBJ_AI_FLAG6) dnp3_append_2item_text(point_item, quality_item, ", Reference Check");
1162 hf0 = hf_dnp3_al_aiq_b0;
1163 hf1 = hf_dnp3_al_aiq_b1;
1164 hf2 = hf_dnp3_al_aiq_b2;
1165 hf3 = hf_dnp3_al_aiq_b3;
1166 hf4 = hf_dnp3_al_aiq_b4;
1167 hf5 = hf_dnp3_al_aiq_b5;
1168 hf6 = hf_dnp3_al_aiq_b6;
1169 hf7 = hf_dnp3_al_aiq_b7;
1172 case ANA_OUT: /* Analog Output Quality flags */
1173 hf0 = hf_dnp3_al_aoq_b0;
1174 hf1 = hf_dnp3_al_aoq_b1;
1175 hf2 = hf_dnp3_al_aoq_b2;
1176 hf3 = hf_dnp3_al_aoq_b3;
1177 hf4 = hf_dnp3_al_aoq_b4;
1178 hf5 = hf_dnp3_al_aoq_b5;
1179 hf6 = hf_dnp3_al_aoq_b6;
1180 hf7 = hf_dnp3_al_aoq_b7;
1183 case COUNTER: /* Counter Quality flags */
1184 if (al_ptflags & AL_OBJ_CTR_FLAG5) dnp3_append_2item_text(point_item, quality_item, ", Roll-over");
1185 if (al_ptflags & AL_OBJ_CTR_FLAG6) dnp3_append_2item_text(point_item, quality_item, ", Discontinuity");
1187 hf0 = hf_dnp3_al_ctrq_b0;
1188 hf1 = hf_dnp3_al_ctrq_b1;
1189 hf2 = hf_dnp3_al_ctrq_b2;
1190 hf3 = hf_dnp3_al_ctrq_b3;
1191 hf4 = hf_dnp3_al_ctrq_b4;
1192 hf5 = hf_dnp3_al_ctrq_b5;
1193 hf6 = hf_dnp3_al_ctrq_b6;
1194 hf7 = hf_dnp3_al_ctrq_b7;
1198 if (quality_tree != NULL) {
1199 proto_tree_add_item(quality_tree, hf7, tvb, offset, 1, TRUE);
1200 proto_tree_add_item(quality_tree, hf6, tvb, offset, 1, TRUE);
1201 proto_tree_add_item(quality_tree, hf5, tvb, offset, 1, TRUE);
1202 proto_tree_add_item(quality_tree, hf4, tvb, offset, 1, TRUE);
1203 proto_tree_add_item(quality_tree, hf3, tvb, offset, 1, TRUE);
1204 proto_tree_add_item(quality_tree, hf2, tvb, offset, 1, TRUE);
1205 proto_tree_add_item(quality_tree, hf1, tvb, offset, 1, TRUE);
1206 proto_tree_add_item(quality_tree, hf0, tvb, offset, 1, TRUE);
1208 proto_item_append_text(point_item, ")");
1211 /**********************************************************************/
1212 /* Function to convert DNP3 timestamp to nstime_t value */
1213 /**********************************************************************/
1214 /* 48-bit Time Format */
1215 /* MSB FF EE DD CC BB AA LSB */
1216 /* ffffffff eeeeeeee dddddddd cccccccc bbbbbbbb aaaaaaaa */
1217 /* 47 40 39 32 31 24 23 16 15 8 7 0 */
1219 /* Value is ms since 00:00 on 1/1/1970 */
1220 /**********************************************************************/
1222 dnp3_al_get_timestamp(nstime_t *timestamp, tvbuff_t *tvb, int data_pos)
1228 lo = tvb_get_letohs(tvb, data_pos);
1229 hi = tvb_get_letohl(tvb, data_pos + 2);
1231 time_ms = (guint64)hi * 0x10000 + lo;
1233 timestamp->secs = (long)(time_ms / 1000);
1234 timestamp->nsecs = (long)(time_ms % 1000) * 1000000;
1237 /*****************************************************************/
1238 /* Desc: Application Layer Process Object Details */
1239 /* Returns: New offset pointer into tvb */
1240 /*****************************************************************/
1242 dnp3_al_process_object(tvbuff_t *tvb, int offset, proto_tree *robj_tree, gboolean header_only, guint16 *al_objtype)
1245 guint8 al_2bit, al_objq, al_objq_index, al_objq_code, al_ptflags, al_ctlobj_code,
1246 al_ctlobj_code_c, al_ctlobj_code_m, al_ctlobj_code_tc, al_ctlobj_count, al_bi_val, bitindex=0;
1247 guint16 al_obj, al_val16=0, al_ctlobj_stat, al_relms;
1248 guint32 item_num, al_val32, num_items=0, al_ptaddr=0, al_ctlobj_on, al_ctlobj_off;
1249 nstime_t al_cto, al_reltime, al_abstime;
1254 int orig_offset, rangebytes=0, indexbytes=0;
1255 proto_item *object_item = NULL, *point_item = NULL, *qualifier_item = NULL, *range_item = NULL;
1256 proto_tree *object_tree = NULL, *point_tree, *qualifier_tree, *range_tree;
1257 const gchar *ctl_code_str, *ctl_misc_str, *ctl_tc_str, *ctl_status_str;
1259 orig_offset = offset;
1261 /* Application Layer Objects in this Message */
1263 al_obj = tvb_get_ntohs(tvb, offset);
1265 /* Create Data Objects Detail Tree */
1266 object_item = proto_tree_add_uint_format(robj_tree, hf_dnp3_al_obj, tvb, offset, 2, al_obj,
1267 "Object(s): %s (0x%04x)", val_to_str(al_obj, dnp3_al_obj_vals, "Unknown Object - Abort Decoding..."), al_obj);
1268 object_tree = proto_item_add_subtree(object_item, ett_dnp3_al_obj);
1272 /* Object Qualifier */
1273 al_objq = tvb_get_guint8(tvb, offset);
1274 al_objq_index = al_objq & AL_OBJQ_INDEX;
1275 al_objq_index = al_objq_index >> 4;
1276 al_objq_code = al_objq & AL_OBJQ_CODE;
1278 qualifier_item = proto_tree_add_text(object_tree, tvb, offset, 1, "Qualifier Field, Prefix: %s, Code: %s",
1279 val_to_str(al_objq_index, dnp3_al_objq_index_vals, "Unknown Index Type"),
1280 val_to_str(al_objq_code, dnp3_al_objq_code_vals, "Unknown Code Type"));
1281 qualifier_tree = proto_item_add_subtree(qualifier_item, ett_dnp3_al_obj_qualifier);
1282 proto_tree_add_item(qualifier_tree, hf_dnp3_al_objq_index, tvb, offset, 1, FALSE);
1283 proto_tree_add_item(qualifier_tree, hf_dnp3_al_objq_code, tvb, offset, 1, FALSE);
1287 /* Create (possibly synthesized) number of items and range field tree */
1288 range_item = proto_tree_add_text(object_tree, tvb, offset, 0, "Number of Items: ");
1289 range_tree = proto_item_add_subtree(range_item, ett_dnp3_al_obj_range);
1291 switch (al_objq_code)
1293 case AL_OBJQL_CODE_SSI8: /* 8-bit Start and Stop Indices in Range Field */
1294 num_items = ( tvb_get_guint8(tvb, offset+1) - tvb_get_guint8(tvb, offset) + 1);
1295 PROTO_ITEM_SET_GENERATED(range_item);
1296 al_ptaddr = tvb_get_guint8(tvb, offset);
1297 proto_tree_add_item(range_tree, hf_dnp3_al_range_start8, tvb, offset, 1, TRUE);
1298 proto_tree_add_item(range_tree, hf_dnp3_al_range_stop8, tvb, offset + 1, 1, TRUE);
1301 case AL_OBJQL_CODE_SSI16: /* 16-bit Start and Stop Indices in Range Field */
1302 num_items = ( tvb_get_letohs(tvb, offset+2) - tvb_get_letohs(tvb, (offset)) + 1);
1303 PROTO_ITEM_SET_GENERATED(range_item);
1304 al_ptaddr = tvb_get_letohs(tvb, offset);
1305 proto_tree_add_item(range_tree, hf_dnp3_al_range_start16, tvb, offset, 2, TRUE);
1306 proto_tree_add_item(range_tree, hf_dnp3_al_range_stop16, tvb, offset + 2, 2, TRUE);
1309 case AL_OBJQL_CODE_SSI32: /* 32-bit Start and Stop Indices in Range Field */
1310 num_items = ( tvb_get_letohl(tvb, offset+4) - tvb_get_letohl(tvb, offset) + 1);
1311 PROTO_ITEM_SET_GENERATED(range_item);
1312 al_ptaddr = tvb_get_letohl(tvb, offset);
1313 proto_tree_add_item(range_tree, hf_dnp3_al_range_start32, tvb, offset, 4, TRUE);
1314 proto_tree_add_item(range_tree, hf_dnp3_al_range_stop32, tvb, offset + 4, 2, TRUE);
1317 case AL_OBJQL_CODE_AA8: /* 8-bit Absolute Address in Range Field */
1319 PROTO_ITEM_SET_GENERATED(range_item);
1320 al_ptaddr = tvb_get_guint8(tvb, offset);
1321 proto_tree_add_item(range_tree, hf_dnp3_al_range_abs8, tvb, offset, 1, TRUE);
1324 case AL_OBJQL_CODE_AA16: /* 16-bit Absolute Address in Range Field */
1326 PROTO_ITEM_SET_GENERATED(range_item);
1327 al_ptaddr = tvb_get_letohs(tvb, offset);
1328 proto_tree_add_item(range_tree, hf_dnp3_al_range_abs16, tvb, offset, 2, TRUE);
1331 case AL_OBJQL_CODE_AA32: /* 32-bit Absolute Address in Range Field */
1333 PROTO_ITEM_SET_GENERATED(range_item);
1334 al_ptaddr = tvb_get_letohl(tvb, offset);
1335 proto_tree_add_item(range_tree, hf_dnp3_al_range_abs32, tvb, offset, 4, TRUE);
1338 case AL_OBJQL_CODE_SF8: /* 8-bit Single Field Quantity in Range Field */
1339 num_items = tvb_get_guint8(tvb, offset);
1340 proto_tree_add_item(range_tree, hf_dnp3_al_range_quant8, tvb, offset, 1, TRUE);
1342 proto_item_set_len(range_item, rangebytes);
1344 case AL_OBJQL_CODE_SF16: /* 16-bit Single Field Quantity in Range Field */
1345 num_items = tvb_get_letohs(tvb, offset);
1346 proto_tree_add_item(range_tree, hf_dnp3_al_range_quant16, tvb, offset, 2, TRUE);
1348 proto_item_set_len(range_item, rangebytes);
1350 case AL_OBJQL_CODE_SF32: /* 32-bit Single Field Quantity in Range Field */
1351 num_items = tvb_get_letohl(tvb, offset);
1352 proto_tree_add_item(range_tree, hf_dnp3_al_range_quant32, tvb, offset, 4, TRUE);
1354 proto_item_set_len(range_item, rangebytes);
1358 proto_item_append_text(object_item, ", %u point%s", num_items, plurality(num_items, "", "s"));
1359 proto_item_append_text(range_item, "%u", num_items);
1361 offset += rangebytes;
1363 bitindex = 0; /* Temp variable for cycling through points when object values are encoded into
1364 bits; primarily objects 0x0101, 0x0301 & 0x1001 */
1366 /* Only process the point information for replies or items with point index lists */
1367 if (!header_only || al_objq_index > 0) {
1368 for (item_num = 0; item_num < num_items; item_num++)
1370 /* Create Point item and Process Index */
1371 point_item = proto_tree_add_text(object_tree, tvb, offset, -1, "Point Number");
1372 point_tree = proto_item_add_subtree(point_item, ett_dnp3_al_obj_point);
1375 indexbytes = dnp3_al_obj_procindex(tvb, offset, al_objq_index, &al_ptaddr, point_tree);
1376 proto_item_append_text(point_item, " %u", al_ptaddr);
1377 data_pos += indexbytes;
1383 case AL_OBJ_BI_ALL: /* Binary Input All Var (Obj:01, Var:All) */
1384 case AL_OBJ_BIC_ALL: /* Binary Input Change All Var (Obj:02, Var:All) */
1385 case AL_OBJ_2BI_ALL: /* Double-bit Input All Var (Obj:03, Var:All) */
1386 case AL_OBJ_CTR_ALL: /* Binary Counter All Var (Obj:20, Var:All) */
1387 case AL_OBJ_CTRC_ALL: /* Binary Counter Change All Var (Obj:22 Var:All) */
1388 case AL_OBJ_AI_ALL: /* Analog Input All Var (Obj:30, Var:All) */
1389 case AL_OBJ_AIC_ALL: /* Analog Input Change All Var (Obj:32 Var:All) */
1394 case AL_OBJ_BI_1BIT: /* Single-Bit Binary Input (Obj:01, Var:01) */
1395 case AL_OBJ_BO: /* Binary Output (Obj:10, Var:01) */
1397 /* Reset bit index if we've gone onto the next byte */
1401 offset += (indexbytes + 1);
1404 /* Extract the bit from the packed byte */
1405 al_bi_val = tvb_get_guint8(tvb, offset);
1406 al_bit = (al_bi_val & (1 << bitindex)) > 0;
1408 proto_item_append_text(point_item, ", Value: %u", al_bit);
1409 proto_tree_add_boolean(point_tree, hf_dnp3_al_bit, tvb, offset, 1, al_bit);
1410 proto_item_set_len(point_item, indexbytes + 1);
1412 /* If we've read the last item, then move the offset past this byte */
1413 if (item_num == (num_items-1))
1415 offset += (indexbytes + 1);
1420 case AL_OBJ_2BI_NF: /* Double-bit Input No Flags (Obj:03, Var:01) */
1425 offset += (indexbytes + 1);
1428 /* Extract the Double-bit from the packed byte */
1429 al_bi_val = tvb_get_guint8(tvb, offset);
1430 al_2bit = ((al_bi_val >> (bitindex << 1)) & 3);
1432 proto_item_append_text(point_item, ", Value: %u", al_2bit);
1433 proto_tree_add_uint(point_tree, hf_dnp3_al_2bit, tvb, offset, 1, al_2bit);
1434 proto_item_set_len(point_item, indexbytes + 1);
1436 /* If we've read the last item, then move the offset past this byte */
1437 if (item_num == (num_items-1))
1439 offset += (indexbytes + 1);
1445 case AL_OBJ_BI_STAT: /* Binary Input With Status (Obj:01, Var:02) */
1446 case AL_OBJ_BIC_NOTIME: /* Binary Input Change Without Time (Obj:02, Var:01) */
1447 case AL_OBJ_BO_STAT: /* Binary Output Status (Obj:10, Var:02) */
1449 /* Get Point Flags */
1450 al_ptflags = tvb_get_guint8(tvb, data_pos);
1453 case AL_OBJ_BI_STAT:
1454 case AL_OBJ_BIC_NOTIME:
1455 dnp3_al_obj_quality(tvb, data_pos, al_ptflags, point_tree, point_item, BIN_IN);
1457 case AL_OBJ_BO_STAT:
1458 dnp3_al_obj_quality(tvb, data_pos, al_ptflags, point_tree, point_item, BIN_OUT);
1463 al_bit = (al_ptflags & AL_OBJ_BI_FLAG7) > 0;
1464 proto_item_append_text(point_item, ", Value: %u", al_bit);
1466 proto_item_set_len(point_item, data_pos - offset);
1471 case AL_OBJ_2BI_STAT: /* Double-bit Input With Status (Obj:03, Var:02) */
1472 case AL_OBJ_2BIC_NOTIME: /* Double-bit Input Change Without Time (Obj:04, Var:01) */
1474 /* Get Point Flags */
1475 al_ptflags = tvb_get_guint8(tvb, data_pos);
1476 dnp3_al_obj_quality(tvb, data_pos, al_ptflags, point_tree, point_item, BIN_IN);
1479 al_2bit = (al_ptflags >> 6) & 3;
1480 proto_item_append_text(point_item, ", Value: %u", al_2bit);
1481 proto_item_set_len(point_item, data_pos - offset);
1486 case AL_OBJ_BIC_TIME: /* Binary Input Change w/ Time (Obj:02, Var:02) */
1488 /* Get Point Flags */
1489 al_ptflags = tvb_get_guint8(tvb, data_pos);
1490 dnp3_al_obj_quality(tvb, data_pos, al_ptflags, point_tree, point_item, BIN_IN);
1495 dnp3_al_get_timestamp(&al_abstime, tvb, data_pos);
1496 proto_tree_add_time(point_tree, hf_dnp3_al_timestamp, tvb, data_pos, 6, &al_abstime);
1499 al_bit = (al_ptflags & AL_OBJ_BI_FLAG7) >> 7; /* bit shift 1xxxxxxx -> xxxxxxx1 */
1500 proto_item_append_text(point_item, ", Value: %u, Timestamp: %s", al_bit, abs_time_to_str(&al_abstime));
1501 proto_item_set_len(point_item, data_pos - offset);
1506 case AL_OBJ_2BIC_TIME: /* Double-bit Input Change w/ Time (Obj:04, Var:02) */
1508 /* Get Point Flags */
1509 al_ptflags = tvb_get_guint8(tvb, data_pos);
1510 dnp3_al_obj_quality(tvb, (offset+indexbytes), al_ptflags, point_tree, point_item, BIN_IN);
1515 dnp3_al_get_timestamp(&al_abstime, tvb, data_pos);
1516 proto_tree_add_time(point_tree, hf_dnp3_al_timestamp, tvb, data_pos, 6, &al_abstime);
1519 al_2bit = (al_ptflags >> 6) & 3; /* bit shift 11xxxxxx -> 00000011 */
1520 proto_item_append_text(point_item, ", Value: %u, Timestamp: %s", al_2bit, abs_time_to_str(&al_abstime));
1521 proto_item_set_len(point_item, data_pos - offset);
1526 case AL_OBJ_BIC_RTIME: /* Binary Input Change w/ Relative Time (Obj:02, Var:03) */
1528 /* Get Point Flags */
1529 al_ptflags = tvb_get_guint8(tvb, data_pos);
1530 dnp3_al_obj_quality(tvb, data_pos, al_ptflags, point_tree, point_item, BIN_IN);
1533 /* Get relative time, and convert to ns_time */
1534 al_relms = tvb_get_letohs(tvb, data_pos);
1535 al_reltime.secs = al_relms / 1000;
1536 al_reltime.nsecs = (al_relms % 1000) * 1000;
1537 /* Now add to CTO time */
1538 nstime_sum(&al_abstime, &al_cto, &al_reltime);
1539 proto_tree_add_time(point_tree, hf_dnp3_al_rel_timestamp, tvb, data_pos, 2, &al_reltime);
1542 al_bit = (al_ptflags & AL_OBJ_BI_FLAG7) >> 7; /* bit shift 1xxxxxxx -> xxxxxxx1 */
1543 proto_item_append_text(point_item, ", Value: %u, Timestamp: %s", al_bit, abs_time_to_str(&al_abstime));
1544 proto_item_set_len(point_item, data_pos - offset);
1549 case AL_OBJ_CTLOP_BLK: /* Control Relay Output Block (Obj:12, Var:01) */
1551 al_ctlobj_code = tvb_get_guint8(tvb, data_pos);
1554 /* Bit-Mask xxxx1111 for Control Code 'Code' */
1555 al_ctlobj_code_c = al_ctlobj_code & AL_OBJCTLC_CODE;
1556 ctl_code_str = val_to_str(al_ctlobj_code_c, dnp3_al_ctlc_code_vals, "Ctrl Code Invalid (0x%02x)");
1558 /* Bit-Mask xx11xxxx for Control Code Misc Values */
1559 al_ctlobj_code_m = al_ctlobj_code & AL_OBJCTLC_MISC;
1560 ctl_misc_str = val_to_str(al_ctlobj_code_m, dnp3_al_ctlc_misc_vals, "");
1562 /* Bit-Mask 11xxxxxx for Control Code 'Trip/Close' */
1563 al_ctlobj_code_tc = al_ctlobj_code & AL_OBJCTLC_TC;
1564 ctl_tc_str = val_to_str(al_ctlobj_code_tc, dnp3_al_ctlc_tc_vals, "");
1566 /* Get "Count" Field */
1567 al_ctlobj_count = tvb_get_guint8(tvb, data_pos);
1570 /* Get "On Time" Field */
1571 al_ctlobj_on = tvb_get_letohl(tvb, data_pos);
1574 /* Get "Off Time" Field */
1575 al_ctlobj_off = tvb_get_letohl(tvb, data_pos);
1578 al_ctlobj_stat = tvb_get_guint8(tvb, data_pos);
1579 proto_tree_add_item(point_item, hf_dnp3_al_ctrlstatus, tvb, data_pos, 1, TRUE);
1580 ctl_status_str = val_to_str(al_ctlobj_stat, dnp3_al_ctl_status_vals, "Invalid Status (0x%02x)");
1583 proto_item_append_text(point_item, ", Control Code: [%s,%s,%s (0x%02x)]",
1584 ctl_code_str, ctl_misc_str, ctl_tc_str, al_ctlobj_code);
1586 proto_tree_add_text(point_tree, tvb, data_pos - 11, 11,
1587 " [Count: %u] [On-Time: %u] [Off-Time: %u] [Status: %s (0x%02x)]",
1588 al_ctlobj_count, al_ctlobj_on, al_ctlobj_off, ctl_status_str, al_ctlobj_stat);
1590 proto_item_set_len(point_item, data_pos - offset);
1595 case AL_OBJ_AO_32OPB: /* 32-Bit Analog Output Block (Obj:41, Var:01) */
1596 case AL_OBJ_AO_16OPB: /* 16-Bit Analog Output Block (Obj:41, Var:02) */
1597 case AL_OBJ_AO_FLTOPB: /* 32-Bit Floating Point Output Block (Obj:41, Var:03) */
1598 case AL_OBJ_AO_DBLOPB: /* 64-Bit Floating Point Output Block (Obj:41, Var:04) */
1602 case AL_OBJ_AO_32OPB:
1603 al_val32 = tvb_get_letohl(tvb, data_pos);
1604 proto_item_append_text(point_item, ", Value: %u", al_val32);
1605 proto_tree_add_item(point_tree, hf_dnp3_al_anaout32, tvb, data_pos, 4, TRUE);
1608 case AL_OBJ_AO_16OPB:
1609 al_val32 = tvb_get_letohs(tvb, data_pos);
1610 proto_item_append_text(point_item, ", Value: %u", al_val32);
1611 proto_tree_add_item(point_tree, hf_dnp3_al_anaout16, tvb, data_pos, 2, TRUE);
1614 case AL_OBJ_AO_FLTOPB:
1615 al_valflt = tvb_get_letohieee_float(tvb, data_pos);
1616 proto_item_append_text(point_item, ", Value: %g", al_valflt);
1617 proto_tree_add_item(point_tree, hf_dnp3_al_anaoutflt, tvb, data_pos, 4, TRUE);
1620 case AL_OBJ_AO_DBLOPB:
1621 al_valdbl = tvb_get_letohieee_double(tvb, data_pos);
1622 proto_item_append_text(point_item, ", Value: %lg", al_valdbl);
1623 proto_tree_add_item(point_tree, hf_dnp3_al_anaoutdbl, tvb, data_pos, 8, TRUE);
1628 /* Get control status */
1629 al_ctlobj_stat = tvb_get_guint8(tvb, data_pos);
1630 ctl_status_str = val_to_str(al_ctlobj_stat, dnp3_al_ctl_status_vals, "Invalid Status (0x%02x)");
1631 proto_item_append_text(point_item, " [Status: %s (0x%02x)]", ctl_status_str, al_ctlobj_stat);
1632 proto_tree_add_item(point_tree, hf_dnp3_al_ctrlstatus, tvb, data_pos, 1, TRUE);
1635 proto_item_set_len(point_item, data_pos - offset);
1640 case AL_OBJ_CTR_32: /* 32-Bit Binary Counter (Obj:20, Var:01) */
1641 case AL_OBJ_CTR_16: /* 16-Bit Binary Counter (Obj:20, Var:02) */
1642 case AL_OBJ_DCTR_32: /* 32-Bit Binary Delta Counter (Obj:20, Var:03) */
1643 case AL_OBJ_DCTR_16: /* 16-Bit Binary Delta Counter (Obj:20, Var:04) */
1644 case AL_OBJ_CTR_32NF: /* 32-Bit Binary Counter Without Flag (Obj:20, Var:05) */
1645 case AL_OBJ_CTR_16NF: /* 16-Bit Binary Counter Without Flag (Obj:20, Var:06) */
1646 case AL_OBJ_DCTR_32NF: /* 32-Bit Binary Delta Counter Without Flag (Obj:20, Var:07) */
1647 case AL_OBJ_DCTR_16NF: /* 16-Bit Binary Delta Counter Without Flag (Obj:20, Var:08) */
1648 case AL_OBJ_FCTR_32: /* 32-Bit Frozen Counter (Obj:21, Var:01) */
1649 case AL_OBJ_FCTR_16: /* 16-Bit Frozen Counter (Obj:21, Var:02) */
1650 case AL_OBJ_FDCTR_32: /* 21 03 32-Bit Frozen Delta Counter */
1651 case AL_OBJ_FDCTR_16: /* 21 04 16-Bit Frozen Delta Counter */
1652 case AL_OBJ_FCTR_32T: /* 21 05 32-Bit Frozen Counter w/ Time of Freeze */
1653 case AL_OBJ_FCTR_16T: /* 21 06 16-Bit Frozen Counter w/ Time of Freeze */
1654 case AL_OBJ_FDCTR_32T: /* 21 07 32-Bit Frozen Delta Counter w/ Time of Freeze */
1655 case AL_OBJ_FDCTR_16T: /* 21 08 16-Bit Frozen Delta Counter w/ Time of Freeze */
1656 case AL_OBJ_FCTR_32NF: /* 21 09 32-Bit Frozen Counter Without Flag */
1657 case AL_OBJ_FCTR_16NF: /* 21 10 16-Bit Frozen Counter Without Flag */
1658 case AL_OBJ_FDCTR_32NF: /* 21 11 32-Bit Frozen Delta Counter Without Flag */
1659 case AL_OBJ_FDCTR_16NF: /* 21 12 16-Bit Frozen Delta Counter Without Flag */
1660 case AL_OBJ_CTRC_32: /* 32-Bit Counter Change Event w/o Time (Obj:22, Var:01) */
1661 case AL_OBJ_CTRC_16: /* 16-Bit Counter Change Event w/o Time (Obj:22, Var:02) */
1662 case AL_OBJ_DCTRC_32: /* 32-Bit Delta Counter Change Event w/o Time (Obj:22, Var:03) */
1663 case AL_OBJ_DCTRC_16: /* 16-Bit Delta Counter Change Event w/o Time (Obj:22, Var:04) */
1664 case AL_OBJ_CTRC_32T: /* 32-Bit Counter Change Event with Time (Obj:22, Var:05) */
1665 case AL_OBJ_CTRC_16T: /* 16-Bit Counter Change Event with Time (Obj:22, Var:06) */
1666 case AL_OBJ_DCTRC_32T: /* 32-Bit Delta Counter Change Event with Time (Obj:22, Var:07) */
1667 case AL_OBJ_DCTRC_16T: /* 16-Bit Delta Counter Change Event with Time (Obj:22, Var:08) */
1668 case AL_OBJ_FCTRC_32: /* 21 01 32-Bit Frozen Counter Change Event */
1669 case AL_OBJ_FCTRC_16: /* 21 02 16-Bit Frozen Counter Change Event */
1670 case AL_OBJ_FDCTRC_32: /* 21 03 32-Bit Frozen Delta Counter Change Event */
1671 case AL_OBJ_FDCTRC_16: /* 21 04 16-Bit Frozen Delta Counter Change Event */
1672 case AL_OBJ_FCTRC_32T: /* 21 05 32-Bit Frozen Counter Change Event w/ Time of Freeze */
1673 case AL_OBJ_FCTRC_16T: /* 21 06 16-Bit Frozen Counter Change Event w/ Time of Freeze */
1674 case AL_OBJ_FDCTRC_32T: /* 21 07 32-Bit Frozen Delta Counter Change Event w/ Time of Freeze */
1675 case AL_OBJ_FDCTRC_16T: /* 21 08 16-Bit Frozen Delta Counter Change Event w/ Time of Freeze */
1677 /* Get Point Flags for those types that have them, it's easier to block out those that don't have flags */
1680 case AL_OBJ_CTR_32NF:
1681 case AL_OBJ_CTR_16NF:
1682 case AL_OBJ_DCTR_32NF:
1683 case AL_OBJ_DCTR_16NF:
1684 case AL_OBJ_FCTR_32NF:
1685 case AL_OBJ_FCTR_16NF:
1686 case AL_OBJ_FDCTR_32NF:
1687 case AL_OBJ_FDCTR_16NF:
1691 al_ptflags = tvb_get_guint8(tvb, data_pos);
1692 dnp3_al_obj_quality(tvb, data_pos, al_ptflags, point_tree, point_item, COUNTER);
1697 /* Get Counter values */
1701 case AL_OBJ_DCTR_32:
1702 case AL_OBJ_CTR_32NF:
1703 case AL_OBJ_DCTR_32NF:
1704 case AL_OBJ_FCTR_32:
1705 case AL_OBJ_FDCTR_32:
1706 case AL_OBJ_FCTR_32T:
1707 case AL_OBJ_FDCTR_32T:
1708 case AL_OBJ_FCTR_32NF:
1709 case AL_OBJ_FDCTR_32NF:
1710 case AL_OBJ_CTRC_32:
1711 case AL_OBJ_DCTRC_32:
1712 case AL_OBJ_CTRC_32T:
1713 case AL_OBJ_DCTRC_32T:
1714 case AL_OBJ_FCTRC_32:
1715 case AL_OBJ_FDCTRC_32:
1716 case AL_OBJ_FCTRC_32T:
1717 case AL_OBJ_FDCTRC_32T:
1719 al_val32 = tvb_get_letohl(tvb, data_pos);
1720 proto_item_append_text(point_item, ", Count: %u", al_val32);
1721 proto_tree_add_item(point_tree, hf_dnp3_al_cnt32, tvb, data_pos, 4, TRUE);
1726 case AL_OBJ_DCTR_16:
1727 case AL_OBJ_CTR_16NF:
1728 case AL_OBJ_DCTR_16NF:
1729 case AL_OBJ_FCTR_16:
1730 case AL_OBJ_FDCTR_16:
1731 case AL_OBJ_FCTR_16T:
1732 case AL_OBJ_FDCTR_16T:
1733 case AL_OBJ_FCTR_16NF:
1734 case AL_OBJ_FDCTR_16NF:
1735 case AL_OBJ_CTRC_16:
1736 case AL_OBJ_DCTRC_16:
1737 case AL_OBJ_CTRC_16T:
1738 case AL_OBJ_DCTRC_16T:
1739 case AL_OBJ_FCTRC_16:
1740 case AL_OBJ_FDCTRC_16:
1741 case AL_OBJ_FCTRC_16T:
1742 case AL_OBJ_FDCTRC_16T:
1744 al_val16 = tvb_get_letohs(tvb, data_pos);
1745 proto_item_append_text(point_item, ", Count: %u", al_val16);
1746 proto_tree_add_item(point_tree, hf_dnp3_al_cnt16, tvb, data_pos, 2, TRUE);
1751 /* Get the time for those points that have it */
1754 case AL_OBJ_FCTR_32T:
1755 case AL_OBJ_FCTR_16T:
1756 case AL_OBJ_FDCTR_32T:
1757 case AL_OBJ_FDCTR_16T:
1758 case AL_OBJ_CTRC_32T:
1759 case AL_OBJ_CTRC_16T:
1760 case AL_OBJ_DCTRC_32T:
1761 case AL_OBJ_DCTRC_16T:
1762 case AL_OBJ_FCTRC_32T:
1763 case AL_OBJ_FCTRC_16T:
1764 case AL_OBJ_FDCTRC_32T:
1765 case AL_OBJ_FDCTRC_16T:
1766 dnp3_al_get_timestamp(&al_abstime, tvb, data_pos);
1767 proto_item_append_text(point_item, ", Timestamp: %s", abs_time_to_str(&al_abstime));
1768 proto_tree_add_time(point_tree, hf_dnp3_al_timestamp, tvb, data_pos, 6, &al_abstime);
1773 proto_item_set_len(point_item, data_pos - offset);
1778 case AL_OBJ_AI_32: /* 32-Bit Analog Input (Obj:30, Var:01) */
1779 case AL_OBJ_AI_16: /* 16-Bit Analog Input (Obj:30, Var:02) */
1780 case AL_OBJ_AI_32NF: /* 32-Bit Analog Input Without Flag (Obj:30, Var:03) */
1781 case AL_OBJ_AI_16NF: /* 16-Bit Analog Input Without Flag (Obj:30, Var:04) */
1782 case AL_OBJ_AI_FLT: /* 32-Bit Floating Point Input (Obj:30, Var:05) */
1783 case AL_OBJ_AI_DBL: /* 64-Bit Floating Point Input (Obj:30, Var:06) */
1784 case AL_OBJ_AIF_FLT: /* 32-Bit Frozen Floating Point Input (Obj:31, Var:07) */
1785 case AL_OBJ_AIF_DBL: /* 64-Bit Frozen Floating Point Input (Obj:31, Var:08) */
1786 case AL_OBJ_AIC_32NT: /* 32-Bit Analog Change Event w/o Time (Obj:32, Var:01) */
1787 case AL_OBJ_AIC_16NT: /* 16-Bit Analog Change Event w/o Time (Obj:32, Var:02) */
1788 case AL_OBJ_AIC_32T: /* 32-Bit Analog Change Event with Time (Obj:32, Var:03) */
1789 case AL_OBJ_AIC_16T: /* 16-Bit Analog Change Event with Time (Obj:32, Var:04) */
1790 case AL_OBJ_AIC_FLTNT: /* 32-Bit Floating Point Change Event w/o Time (Obj:32, Var:05) */
1791 case AL_OBJ_AIC_DBLNT: /* 64-Bit Floating Point Change Event w/o Time (Obj:32, Var:06) */
1792 case AL_OBJ_AIC_FLTT: /* 32-Bit Floating Point Change Event w/ Time (Obj:32, Var:07) */
1793 case AL_OBJ_AIC_DBLT: /* 64-Bit Floating Point Change Event w/ Time (Obj:32, Var:08) */
1794 case AL_OBJ_AIFC_FLTNT: /* 32-Bit Floating Point Frozen Change Event w/o Time (Obj:33, Var:05) */
1795 case AL_OBJ_AIFC_DBLNT: /* 64-Bit Floating Point Frozen Change Event w/o Time (Obj:33, Var:06) */
1796 case AL_OBJ_AIFC_FLTT: /* 32-Bit Floating Point Frozen Change Event w/ Time (Obj:33, Var:07) */
1797 case AL_OBJ_AIFC_DBLT: /* 64-Bit Floating Point Frozen Change Event w/ Time (Obj:33, Var:08) */
1799 /* Get Point Flags for those types that have them */
1802 case AL_OBJ_AI_32NF:
1803 case AL_OBJ_AI_16NF:
1807 al_ptflags = tvb_get_guint8(tvb, data_pos);
1808 dnp3_al_obj_quality(tvb, data_pos, al_ptflags, point_tree, point_item, ANA_IN);
1816 case AL_OBJ_AI_32NF:
1817 case AL_OBJ_AIC_32NT:
1818 case AL_OBJ_AIC_32T:
1820 al_val32 = tvb_get_letohl(tvb, data_pos);
1821 proto_item_append_text(point_item, ", Value: %u", al_val32);
1822 proto_tree_add_item(point_tree, hf_dnp3_al_ana32, tvb, data_pos, 4, TRUE);
1827 case AL_OBJ_AI_16NF:
1828 case AL_OBJ_AIC_16NT:
1829 case AL_OBJ_AIC_16T:
1831 al_val16 = tvb_get_letohs(tvb, data_pos);
1832 proto_item_append_text(point_item, ", Value: %u", al_val16);
1833 proto_tree_add_item(point_tree, hf_dnp3_al_ana16, tvb, data_pos, 2, TRUE);
1838 case AL_OBJ_AIF_FLT:
1839 case AL_OBJ_AIC_FLTNT:
1840 case AL_OBJ_AIC_FLTT:
1841 case AL_OBJ_AIFC_FLTNT:
1842 case AL_OBJ_AIFC_FLTT:
1844 al_valflt = tvb_get_letohieee_float(tvb, data_pos);
1845 proto_item_append_text(point_item, ", Value: %g", al_valflt);
1846 proto_tree_add_item(point_tree, hf_dnp3_al_anaflt, tvb, data_pos, 4, TRUE);
1851 case AL_OBJ_AIF_DBL:
1852 case AL_OBJ_AIC_DBLNT:
1853 case AL_OBJ_AIC_DBLT:
1854 case AL_OBJ_AIFC_DBLNT:
1855 case AL_OBJ_AIFC_DBLT:
1857 al_valdbl = tvb_get_letohieee_double(tvb, data_pos);
1858 proto_item_append_text(point_item, ", Value: %lg", al_valdbl);
1859 proto_tree_add_item(point_tree, hf_dnp3_al_anadbl, tvb, data_pos, 8, TRUE);
1867 case AL_OBJ_AIC_32T:
1868 case AL_OBJ_AIC_16T:
1869 case AL_OBJ_AIC_FLTT:
1870 case AL_OBJ_AIC_DBLT:
1871 case AL_OBJ_AIFC_FLTT:
1872 case AL_OBJ_AIFC_DBLT:
1873 dnp3_al_get_timestamp(&al_abstime, tvb, data_pos);
1874 proto_item_append_text(point_item, ", Timestamp: %s", abs_time_to_str(&al_abstime));
1875 proto_tree_add_time(point_tree, hf_dnp3_al_timestamp, tvb, data_pos, 6, &al_abstime);
1880 proto_item_set_len(point_item, data_pos - offset);
1885 case AL_OBJ_AO_32: /* 32-Bit Analog Output Status (Obj:40, Var:01) */
1886 case AL_OBJ_AO_16: /* 16-Bit Analog Output Status (Obj:40, Var:02) */
1887 case AL_OBJ_AO_FLT: /* 32-Bit Floating Point Output Status (Obj:40, Var:03) */
1888 case AL_OBJ_AO_DBL: /* 64-Bit Floating Point Output Status (Obj:40, Var:04) */
1890 /* Get Point Flags */
1891 al_ptflags = tvb_get_guint8(tvb, data_pos);
1892 dnp3_al_obj_quality(tvb, data_pos, al_ptflags, point_tree, point_item, ANA_OUT);
1897 case AL_OBJ_AO_32: /* 32-Bit Analog Output Status (Obj:40, Var:01) */
1899 al_val32 = tvb_get_letohl(tvb, data_pos);
1900 proto_item_append_text(point_item, ", Value: %u", al_val32);
1901 proto_tree_add_item(point_tree, hf_dnp3_al_anaout32, tvb, data_pos, 4, TRUE);
1905 case AL_OBJ_AO_16: /* 16-Bit Analog Output Status (Obj:40, Var:02) */
1907 al_val16 = tvb_get_letohs(tvb, data_pos);
1908 proto_item_append_text(point_item, ", Value: %u", al_val16);
1909 proto_tree_add_item(point_tree, hf_dnp3_al_anaout16, tvb, data_pos, 2, TRUE);
1913 case AL_OBJ_AO_FLT: /* 32-Bit Floating Point Output Status (Obj:40, Var:03) */
1915 al_valflt = tvb_get_letohieee_float(tvb, data_pos);
1916 proto_item_append_text(point_item, ", Value: %g", al_valflt);
1917 proto_tree_add_item(point_tree, hf_dnp3_al_anaoutflt, tvb, data_pos, 4, TRUE);
1921 case AL_OBJ_AO_DBL: /* 64-Bit Floating Point Output Status (Obj:40, Var:04) */
1923 al_valdbl = tvb_get_letohieee_double(tvb, data_pos);
1924 proto_item_append_text(point_item, ", Value: %lg", al_valdbl);
1925 proto_tree_add_item(point_tree, hf_dnp3_al_anaoutdbl, tvb, data_pos, 8, TRUE);
1930 proto_item_set_len(point_item, data_pos - offset);
1935 case AL_OBJ_TD: /* Time and Date (Obj:50, Var:01) */
1936 case AL_OBJ_TDCTO: /* Time and Date CTO (Obj:51, Var:01) */
1938 dnp3_al_get_timestamp(&al_cto, tvb, data_pos);
1939 proto_tree_add_time(object_tree, hf_dnp3_al_timestamp, tvb, data_pos, 6, &al_cto);
1941 proto_item_set_len(point_item, data_pos - offset);
1946 case AL_OBJ_TDELAYF: /* Time Delay - Fine (Obj:52, Var:02) */
1948 al_val16 = tvb_get_letohs(tvb, data_pos);
1949 proto_tree_add_text(object_tree, tvb, data_pos, 2, "Time Delay: %u ms", al_val16);
1951 proto_item_set_len(point_item, data_pos - offset);
1956 case AL_OBJ_CLASS0: /* Class Data Objects */
1965 case AL_OBJ_IIN: /* IIN Data Object */
1967 /* Single byte of data here */
1968 proto_tree_add_text(object_tree, tvb, data_pos, 1, "Value: %u", tvb_get_guint8(tvb, data_pos));
1970 proto_item_set_len(point_item, data_pos - offset);
1975 default: /* In case of unknown object */
1977 proto_tree_add_text(object_tree, tvb, offset, tvb_reported_length_remaining(tvb, offset),
1978 "Unknown Data Chunk, %u Bytes", tvb_reported_length_remaining(tvb, offset));
1979 offset = tvb_length(tvb); /* Finish decoding if unknown object is encountered... */
1982 /* Increment the bit index for next time */
1985 /* And increment the point address, may be overwritten by an index value */
1990 proto_item_set_len(object_item, offset - orig_offset);
1995 /*****************************************************************/
1996 /* Application Layer Dissector */
1997 /*****************************************************************/
1999 dissect_dnp3_al(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
2001 guint8 al_ctl, al_seq, al_func, al_class = 0, i;
2002 guint16 bytes, obj_type;
2003 gboolean al_fir, al_fin, al_con;
2004 guint data_len = 0, offset = 0;
2005 proto_item *ti = NULL, *tc, *t_robj;
2006 proto_tree *al_tree = NULL, *field_tree = NULL, *robj_tree = NULL;
2007 const gchar *func_code_str;
2009 data_len = tvb_length(tvb);
2011 /* Handle the control byte and function code */
2012 al_ctl = tvb_get_guint8(tvb, offset);
2013 al_seq = al_ctl & DNP3_AL_SEQ;
2014 al_fir = al_ctl & DNP3_AL_FIR;
2015 al_fin = al_ctl & DNP3_AL_FIN;
2016 al_con = al_ctl & DNP3_AL_CON;
2017 al_func = tvb_get_guint8(tvb, (offset+1));
2018 func_code_str = val_to_str(al_func, dnp3_al_func_vals, "Unknown function (0x%02x)");
2020 if (check_col(pinfo->cinfo, COL_INFO))
2021 col_append_sep_fstr(pinfo->cinfo, COL_INFO, NULL, "%s", func_code_str);
2022 col_set_fence(pinfo->cinfo, COL_INFO);
2024 /* format up the text representation */
2025 ti = proto_tree_add_text(tree, tvb, offset, data_len, "Application Layer: (");
2026 if (al_ctl & DNP3_AL_FIR) proto_item_append_text(ti, "FIR, ");
2027 if (al_ctl & DNP3_AL_FIN) proto_item_append_text(ti, "FIN, ");
2028 if (al_ctl & DNP3_AL_CON) proto_item_append_text(ti, "CON, ");
2029 proto_item_append_text(ti, "Sequence %u, %s)", al_seq, func_code_str);
2031 /* Add the al tree branch */
2032 al_tree = proto_item_add_subtree(ti, ett_dnp3_al);
2034 /* Application Layer control byte subtree */
2035 tc = proto_tree_add_uint_format(al_tree, hf_dnp3_al_ctl, tvb, offset, 1, al_ctl,
2036 "Control: 0x%02x (", al_ctl);
2037 if (al_ctl & DNP3_AL_FIR) proto_item_append_text(tc, "FIR, ");
2038 if (al_ctl & DNP3_AL_FIN) proto_item_append_text(tc, "FIN, ");
2039 if (al_ctl & DNP3_AL_CON) proto_item_append_text(tc, "CON, ");
2040 proto_item_append_text(tc, "Sequence %u)", al_seq);
2042 field_tree = proto_item_add_subtree(tc, ett_dnp3_al_ctl);
2043 proto_tree_add_boolean(field_tree, hf_dnp3_al_fir, tvb, offset, 1, al_ctl);
2044 proto_tree_add_boolean(field_tree, hf_dnp3_al_fin, tvb, offset, 1, al_ctl);
2045 proto_tree_add_boolean(field_tree, hf_dnp3_al_con, tvb, offset, 1, al_ctl);
2046 proto_tree_add_item(field_tree, hf_dnp3_al_seq, tvb, offset, 1, FALSE);
2049 /* If this packet is NOT the final Application Layer Message, exit and continue
2050 processing the remaining data in the fragment.
2053 t_robj = proto_tree_add_text(al_tree, tvb, offset, -1, "Buffering User Data Until Final Frame is Received..");
2057 /* Application Layer Function Code Byte */
2058 proto_tree_add_uint_format(al_tree, hf_dnp3_al_func, tvb, offset, 1, al_func,
2059 "Function Code: %s (0x%02x)", func_code_str, al_func);
2064 case AL_FUNC_READ: /* Read Function Code 0x01 */
2066 /* Create Read Request Data Objects Tree */
2067 t_robj = proto_tree_add_text(al_tree, tvb, offset, -1, "READ Request Data Objects");
2068 robj_tree = proto_item_add_subtree(t_robj, ett_dnp3_al_objdet);
2070 /* Process Data Object Details */
2071 while (offset <= (data_len-2)) { /* 2 octet object code + CRC32 */
2072 offset = dnp3_al_process_object(tvb, offset, robj_tree, TRUE, &obj_type);
2074 /* Update class type for each object that was a class read */
2080 al_class |= (1 << ((obj_type & 0x0f) - 1));
2087 /* Update the col info if there were class reads */
2088 if (check_col(pinfo->cinfo, COL_INFO) && (al_class > 0)) {
2089 col_append_sep_fstr(pinfo->cinfo, COL_INFO, NULL, "Class ");
2090 for (i = 0; i < 4; i++) {
2091 if (al_class & (1 << i)) {
2092 col_append_fstr(pinfo->cinfo, COL_INFO, "%u", i);
2099 case AL_FUNC_WRITE: /* Write Function Code 0x02 */
2101 /* Create Write Request Data Objects Tree */
2102 t_robj = proto_tree_add_text(al_tree, tvb, offset, -1, "WRITE Request Data Objects");
2103 robj_tree = proto_item_add_subtree(t_robj, ett_dnp3_al_objdet);
2105 /* Process Data Object Details */
2106 while (offset <= (data_len-2)) { /* 2 octet object code + CRC32 */
2107 offset = dnp3_al_process_object(tvb, offset, robj_tree, FALSE, &obj_type);
2112 case AL_FUNC_SELECT: /* Select Function Code 0x03 */
2114 /* Create Select Request Data Objects Tree */
2115 t_robj = proto_tree_add_text(al_tree, tvb, offset, -1, "SELECT Request Data Objects");
2116 robj_tree = proto_item_add_subtree(t_robj, ett_dnp3_al_objdet);
2118 /* Process Data Object Details */
2119 while (offset <= (data_len-2)) { /* 2 octet object code + CRC32 */
2120 offset = dnp3_al_process_object(tvb, offset, robj_tree, FALSE, &obj_type);
2125 case AL_FUNC_OPERATE: /* Operate Function Code 0x04 */
2126 /* Functionally identical to 'SELECT' Function Code */
2128 /* Create Operate Request Data Objects Tree */
2129 t_robj = proto_tree_add_text(al_tree, tvb, offset, -1, "OPERATE Request Data Objects");
2130 robj_tree = proto_item_add_subtree(t_robj, ett_dnp3_al_objdet);
2132 /* Process Data Object Details */
2133 while (offset <= (data_len-2)) { /* 2 octet object code + CRC32 */
2134 offset = dnp3_al_process_object(tvb, offset, robj_tree, FALSE, &obj_type);
2139 case AL_FUNC_DIROP: /* Direct Operate Function Code 0x05 */
2140 /* Functionally identical to 'SELECT' Function Code */
2142 /* Create Direct Operate Request Data Objects Tree */
2143 t_robj = proto_tree_add_text(al_tree, tvb, offset, -1, "DIRECT OPERATE Request Data Objects");
2144 robj_tree = proto_item_add_subtree(t_robj, ett_dnp3_al_objdet);
2146 /* Process Data Object Details */
2147 while (offset <= (data_len-2)) { /* 2 octet object code + CRC32 */
2148 offset = dnp3_al_process_object(tvb, offset, robj_tree, FALSE, &obj_type);
2153 case AL_FUNC_ENSPMSG: /* Enable Spontaneous Messages Function Code 0x14 */
2155 /* Create Enable Spontaneous Messages Data Objects Tree */
2156 t_robj = proto_tree_add_text(al_tree, tvb, offset, -1, "Enable Spontaneous Msg's Data Objects");
2157 robj_tree = proto_item_add_subtree(t_robj, ett_dnp3_al_objdet);
2159 /* Process Data Object Details */
2160 while (offset <= (data_len-2)) { /* 2 octet object code + CRC32 */
2161 offset = dnp3_al_process_object(tvb, offset, robj_tree, FALSE, &obj_type);
2166 case AL_FUNC_DELAYMST: /* Delay Measurement Function Code 0x17 */
2170 case AL_FUNC_RESPON: /* Response Function Code 0x81 */
2171 case AL_FUNC_UNSOLI: /* Unsolicited Response Function Code 0x82 */
2173 /* Application Layer IIN bits req'd if message is a response */
2174 dnp3_al_process_iin(tvb, offset, al_tree);
2177 /* Ensure there is actual data remaining in the message.
2178 A response will not contain data following the IIN bits,
2179 if there is none available */
2180 bytes = tvb_reported_length_remaining(tvb, offset);
2183 /* Create Response Data Objects Tree */
2184 t_robj = proto_tree_add_text(al_tree, tvb, offset, -1,"RESPONSE Data Objects");
2185 robj_tree = proto_item_add_subtree(t_robj, ett_dnp3_al_objdet);
2187 /* Process Data Object Details */
2188 while (offset <= (data_len-2)) { /* 2 octet object code + CRC32 */
2189 offset = dnp3_al_process_object(tvb, offset, robj_tree, FALSE, &obj_type);
2195 default: /* Unknown Function */
2203 /*****************************************************************/
2204 /* Data Link and Transport layer dissector */
2205 /*****************************************************************/
2207 dissect_dnp3_message(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
2210 /* Set up structures needed to add the protocol subtree and manage it */
2211 proto_item *ti = NULL, *tdl, *tc, *al_chunks;
2212 proto_tree *dnp3_tree = NULL, *dl_tree = NULL, *tr_tree = NULL, *field_tree = NULL, *al_tree = NULL;
2213 int offset = 0, temp_offset = 0, al_result = 0;
2214 gboolean dl_prm, tr_fir, tr_fin;
2215 guint8 dl_len, dl_ctl, dl_func, tr_ctl, tr_seq;
2216 const gchar *func_code_str;
2217 guint16 dl_dst, dl_src, dl_crc, calc_dl_crc;
2218 guint8 *tmp = NULL, *tmp_ptr;
2221 gboolean crc_OK = FALSE;
2222 tvbuff_t *al_tvb = NULL, *next_tvb;
2224 guint conv_seq_number;
2225 gboolean save_fragmented;
2226 fragment_data *frag_msg;
2227 gboolean update_col_info = TRUE;
2228 conversation_t *conversation;
2229 dnp3_conv_t *conv_data_ptr;
2233 /* Make entries in Protocol column and Info column on summary display */
2234 if (check_col(pinfo->cinfo, COL_PROTOCOL))
2235 col_set_str(pinfo->cinfo, COL_PROTOCOL, "DNP 3.0");
2237 if (check_col(pinfo->cinfo, COL_INFO))
2238 col_clear(pinfo->cinfo, COL_INFO);
2240 /* Skip "0x0564" header bytes */
2243 dl_len = tvb_get_guint8(tvb, temp_offset);
2246 dl_ctl = tvb_get_guint8(tvb, temp_offset);
2249 dl_dst = tvb_get_letohs(tvb, temp_offset);
2252 dl_src = tvb_get_letohs(tvb, temp_offset);
2254 dl_func = dl_ctl & DNP3_CTL_FUNC;
2255 dl_prm = dl_ctl & DNP3_CTL_PRM;
2256 func_code_str = val_to_str(dl_func, dl_prm ? dnp3_ctl_func_pri_vals : dnp3_ctl_func_sec_vals,
2257 "Unknown function (0x%02x)");
2259 if (check_col(pinfo->cinfo, COL_INFO))
2260 col_append_fstr(pinfo->cinfo, COL_INFO, "len=%u, from %u to %u, %s",
2261 dl_len, dl_src, dl_dst, func_code_str);
2263 /* create display subtree for the protocol */
2264 ti = proto_tree_add_item(tree, proto_dnp3, tvb, offset, -1, FALSE);
2265 dnp3_tree = proto_item_add_subtree(ti, ett_dnp3);
2267 /* Create Subtree for Data Link Layer */
2268 tdl = proto_tree_add_text(dnp3_tree, tvb, offset, DNP_HDR_LEN,
2269 "Data Link Layer, Len: %u, From: %u, To: %u, ", dl_len, dl_src, dl_dst);
2271 if (dl_ctl & DNP3_CTL_DIR) proto_item_append_text(tdl, "DIR, ");
2272 if (dl_ctl & DNP3_CTL_PRM) proto_item_append_text(tdl, "PRM, ");
2273 if (dl_ctl & DNP3_CTL_FCB) proto_item_append_text(tdl, "FCB, ");
2274 if (dl_ctl & DNP3_CTL_FCV) proto_item_append_text(tdl, "FCV, ");
2277 if (dl_ctl & DNP3_CTL_DIR) proto_item_append_text(tdl, "DIR, ");
2278 if (dl_ctl & DNP3_CTL_PRM) proto_item_append_text(tdl, "PRM, ");
2279 if (dl_ctl & DNP3_CTL_RES) proto_item_append_text(tdl, "RES, ");
2280 if (dl_ctl & DNP3_CTL_DFC) proto_item_append_text(tdl, "DFC, ");
2282 proto_item_append_text(tdl, func_code_str);
2283 dl_tree = proto_item_add_subtree(tdl, ett_dnp3_dl);
2286 proto_tree_add_item(dl_tree, hf_dnp3_start, tvb, offset, 2, FALSE);
2289 /* add length field */
2290 proto_tree_add_item(dl_tree, hf_dnp3_len, tvb, offset, 1, FALSE);
2293 /* Add Control Byte Subtree */
2294 tc = proto_tree_add_uint_format(dl_tree, hf_dnp3_ctl, tvb, offset, 1, dl_ctl,
2295 "Control: 0x%02x (", dl_ctl);
2296 /* Add Text to Control Byte Subtree Header */
2298 if (dl_ctl & DNP3_CTL_DIR) proto_item_append_text(tc, "DIR, ");
2299 if (dl_ctl & DNP3_CTL_PRM) proto_item_append_text(tc, "PRM, ");
2300 if (dl_ctl & DNP3_CTL_FCB) proto_item_append_text(tc, "FCB, ");
2301 if (dl_ctl & DNP3_CTL_FCV) proto_item_append_text(tc, "FCV, ");
2304 if (dl_ctl & DNP3_CTL_DIR) proto_item_append_text(tc, "DIR, ");
2305 if (dl_ctl & DNP3_CTL_PRM) proto_item_append_text(tc, "PRM, ");
2306 if (dl_ctl & DNP3_CTL_RES) proto_item_append_text(tc, "RES, ");
2307 if (dl_ctl & DNP3_CTL_DFC) proto_item_append_text(tc, "DFC, ");
2309 proto_item_append_text(tc, "%s)", func_code_str );
2310 field_tree = proto_item_add_subtree(tc, ett_dnp3_dl_ctl);
2312 /* Add Control Byte Subtree Items */
2314 proto_tree_add_item(field_tree, hf_dnp3_ctl_dir, tvb, offset, 1, TRUE);
2315 proto_tree_add_item(field_tree, hf_dnp3_ctl_prm, tvb, offset, 1, TRUE);
2316 proto_tree_add_item(field_tree, hf_dnp3_ctl_fcb, tvb, offset, 1, TRUE);
2317 proto_tree_add_item(field_tree, hf_dnp3_ctl_fcv, tvb, offset, 1, TRUE);
2318 proto_tree_add_item(field_tree, hf_dnp3_ctl_prifunc, tvb, offset, 1, FALSE);
2321 proto_tree_add_item(field_tree, hf_dnp3_ctl_dir, tvb, offset, 1, TRUE);
2322 proto_tree_add_item(field_tree, hf_dnp3_ctl_prm, tvb, offset, 1, TRUE);
2323 proto_tree_add_item(field_tree, hf_dnp3_ctl_dfc, tvb, offset, 1, TRUE);
2324 proto_tree_add_item(field_tree, hf_dnp3_ctl_secfunc, tvb, offset, 1, FALSE);
2328 /* add destination and source addresses */
2329 proto_tree_add_item(dl_tree, hf_dnp3_dst, tvb, offset, 2, TRUE);
2331 proto_tree_add_item(dl_tree, hf_dnp3_src, tvb, offset, 2, TRUE);
2334 /* and header CRC */
2335 dl_crc = tvb_get_letohs(tvb, offset);
2336 calc_dl_crc = calculateCRC(tvb_get_ptr(tvb, 0, DNP_HDR_LEN - 2), DNP_HDR_LEN - 2);
2337 if (dl_crc == calc_dl_crc)
2338 proto_tree_add_uint_format(dl_tree, hf_dnp_hdr_CRC, tvb, offset, 2,
2339 dl_crc, "CRC: 0x%04x [correct]", dl_crc);
2342 proto_tree_add_boolean_hidden(dl_tree, hf_dnp_hdr_CRC_bad, tvb,
2344 proto_tree_add_uint_format(dl_tree, hf_dnp_hdr_CRC, tvb,
2345 offset, 2, dl_crc, "CRC: 0x%04x [incorrect, should be 0x%04x]",
2346 dl_crc, calc_dl_crc);
2350 /* If the DataLink function is 'Request Link Status' or 'Status of Link',
2351 or 'Reset Link' we don't expect any Transport or Application Layer Data
2352 NOTE: This code should probably check what DOES have TR or AL data */
2353 if ((dl_func != DL_FUNC_LINK_STAT) && (dl_func != DL_FUNC_STAT_LINK) &&
2354 (dl_func != DL_FUNC_RESET_LINK) && (dl_func != DL_FUNC_ACK))
2357 /* get the transport layer byte */
2358 tr_ctl = tvb_get_guint8(tvb, offset);
2359 tr_seq = tr_ctl & DNP3_TR_SEQ;
2360 tr_fir = tr_ctl & DNP3_TR_FIR;
2361 tr_fin = tr_ctl & DNP3_TR_FIN;
2363 /* Add Transport Layer Tree */
2364 tc = proto_tree_add_uint_format(dnp3_tree, hf_dnp3_tr_ctl, tvb, offset, 1, tr_ctl,
2365 "Transport Layer: 0x%02x (", tr_ctl);
2366 if (tr_fir) proto_item_append_text(tc, "FIR, ");
2367 if (tr_fin) proto_item_append_text(tc, "FIN, ");
2368 proto_item_append_text(tc, "Sequence %u)", tr_seq);
2370 tr_tree = proto_item_add_subtree(tc, ett_dnp3_tr_ctl);
2371 proto_tree_add_boolean(tr_tree, hf_dnp3_tr_fin, tvb, offset, 1, tr_ctl);
2372 proto_tree_add_boolean(tr_tree, hf_dnp3_tr_fir, tvb, offset, 1, tr_ctl);
2373 proto_tree_add_item(tr_tree, hf_dnp3_tr_seq, tvb, offset, 1, FALSE);
2375 /* Allocate AL chunk tree */
2376 al_chunks = proto_tree_add_text(tr_tree, tvb, offset + 1, -1, "Application data chunks");
2377 al_tree = proto_item_add_subtree(al_chunks, ett_dnp3_al_data);
2379 /* extract the application layer data, validating the CRCs */
2381 /* XXX - check for dl_len <= 5 */
2382 data_len = dl_len - 5;
2383 tmp = ep_alloc(data_len);
2386 data_offset = 1; /* skip the transport layer byte when assembling chunks */
2390 const guint8 *chk_ptr;
2391 guint16 calc_crc, act_crc;
2393 chk_size = MIN(data_len, AL_MAX_CHUNK_SIZE);
2394 chk_ptr = tvb_get_ptr(tvb, offset, chk_size);
2395 memcpy(tmp_ptr, chk_ptr + data_offset, chk_size - data_offset);
2396 calc_crc = calculateCRC(chk_ptr, chk_size);
2398 tmp_ptr += chk_size - data_offset;
2399 act_crc = tvb_get_letohs(tvb, offset);
2401 crc_OK = calc_crc == act_crc;
2404 proto_tree_add_text(al_tree, tvb, offset - (chk_size + 2), chk_size + 2,
2405 "Application Chunk %u Len: %u CRC 0x%04x",
2406 i, chk_size, act_crc);
2407 data_len -= chk_size;
2411 proto_tree_add_text(al_tree, tvb, offset - (chk_size + 2), chk_size + 2,
2412 "Application Chunk %u Len: %u Bad CRC got 0x%04x expected 0x%04x",
2413 i, chk_size, act_crc, calc_crc);
2418 data_offset = 0; /* copy all of the rest of the chunks */
2421 /* if all crc OK, set up new tvb */
2424 al_tvb = tvb_new_real_data(tmp, tmp_ptr-tmp, tmp_ptr-tmp);
2425 tvb_set_child_real_data_tvbuff(tvb, al_tvb);
2427 /* Check for fragmented packet */
2428 save_fragmented = pinfo->fragmented;
2429 if (! (tr_fir && tr_fin))
2431 /* A fragmented packet */
2432 pinfo->fragmented = TRUE;
2434 /* Look up the conversation to get the fragment reassembly id */
2435 conversation = find_conversation(pinfo->fd->num, &pinfo->src, &pinfo->dst,
2436 pinfo->ptype, pinfo->srcport, pinfo->destport, 0);
2438 if (conversation == NULL) {
2439 /* No conversation yet, so make one */
2440 conversation = conversation_new(pinfo->fd->num, &pinfo->src, &pinfo->dst, pinfo->ptype,
2441 pinfo->srcport, pinfo->destport, 0);
2444 conv_data_ptr = (dnp3_conv_t*)conversation_get_proto_data(conversation, proto_dnp3);
2446 if (conv_data_ptr == NULL) {
2447 /* New data structure required */
2448 conv_data_ptr = se_alloc(sizeof(dnp3_conv_t));
2450 /*** Increment static global fragment reassembly id ***/
2451 conv_data_ptr->conv_seq_number = seq_number++;
2453 conversation_add_proto_data(conversation, proto_dnp3, (void *)conv_data_ptr);
2455 conv_seq_number = conv_data_ptr->conv_seq_number;
2459 * whatever reassembly is in progress, if any, and see
2462 frag_msg = fragment_add_seq_check(al_tvb, 0, pinfo, conv_seq_number,
2464 al_reassembled_table,
2466 tvb_reported_length(al_tvb), /* As this is a constructed tvb, all of it is ok */
2469 next_tvb = process_reassembled_data(al_tvb, 0, pinfo,
2470 "Reassembled DNP 3.0 Application Layer message", frag_msg, &dnp3_frag_items,
2471 &update_col_info, tr_tree);
2473 if (next_tvb) { /* Reassembled */
2474 /* We have the complete payload */
2475 if (check_col (pinfo->cinfo, COL_INFO))
2476 col_add_str (pinfo->cinfo, COL_INFO,
2477 "Reassembled Application Layer");
2478 col_set_fence(pinfo->cinfo, COL_INFO);
2482 /* We don't have the complete reassembled payload. */
2483 if (check_col (pinfo->cinfo, COL_INFO))
2484 col_add_fstr (pinfo->cinfo, COL_INFO,
2485 "Application Layer fragment %u", tr_seq);
2486 col_set_fence(pinfo->cinfo, COL_INFO);
2492 /* No reassembly required */
2494 add_new_data_source(pinfo, next_tvb, "DNP 3.0 Application Layer message");
2495 if (check_col (pinfo->cinfo, COL_INFO))
2496 col_clear (pinfo->cinfo, COL_INFO);
2498 pinfo->fragmented = save_fragmented;
2502 /* CRC error - throw away the data. */
2504 proto_tree_add_text(dnp3_tree, tvb, 11, -1, "CRC failed, %u chunks", i);
2509 al_result = dissect_dnp3_al(next_tvb, pinfo, dnp3_tree);
2515 get_dnp3_message_len(packet_info *pinfo _U_, tvbuff_t *tvb, int offset)
2517 guint16 message_len; /* need 16 bits as total can exceed 255 */
2518 guint16 data_crc; /* No. of user data CRC bytes */
2519 message_len = tvb_get_guint8(tvb, offset + 2);
2521 /* Add in 2 bytes for header start octets,
2522 1 byte for len itself,
2523 2 bytes for header CRC
2524 data CRC bytes (2 bytes per 16 bytes of data
2527 data_crc = (guint16)(ceil((message_len - 5) / 16.0)) * 2;
2528 message_len += 2 + 1 + 2 + data_crc;
2533 dissect_dnp3_tcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
2535 gint length = tvb_length_remaining(tvb, 0);
2537 /* Check for a dnp packet. It should begin with 0x0564 */
2538 if(length < DNP_HDR_LEN || tvb_get_ntohs(tvb, 0) != 0x0564) {
2539 /* Not a DNP 3.0 packet, just happened to use the same port */
2543 tcp_dissect_pdus(tvb, pinfo, tree, TRUE, DNP_HDR_LEN,
2544 get_dnp3_message_len, dissect_dnp3_message);
2546 return tvb_length(tvb);
2550 dissect_dnp3_udp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
2552 gint length = tvb_length_remaining(tvb, 0);
2553 /* Check for a dnp packet. It should begin with 0x0564 */
2554 if(length < DNP_HDR_LEN || tvb_get_ntohs(tvb, 0) != 0x0564) {
2555 /* Not a DNP 3.0 packet, just happened to use the same port */
2559 dissect_dnp3_message(tvb, pinfo, tree);
2569 al_defragment_init(void)
2571 fragment_table_init(&al_fragment_table);
2572 reassembled_table_init(&al_reassembled_table);
2575 /* Register the protocol with Wireshark */
2578 proto_register_dnp3(void)
2581 /* Setup list of header fields */
2582 static hf_register_info hf[] = {
2584 { "Start Bytes", "dnp3.start", FT_UINT16, BASE_HEX, NULL, 0x0, "Start Bytes", HFILL }},
2587 { "Length", "dnp3.len", FT_UINT8, BASE_DEC, NULL, 0x0, "Frame Data Length", HFILL }},
2590 { "Control", "dnp3.ctl", FT_UINT8, BASE_HEX, NULL, 0x0, "Frame Control Byte", HFILL }},
2592 { &hf_dnp3_ctl_prifunc,
2593 { "Control Function Code", "dnp3.ctl.prifunc", FT_UINT8, BASE_DEC,
2594 VALS(dnp3_ctl_func_pri_vals), DNP3_CTL_FUNC, "Frame Control Function Code", HFILL }},
2596 { &hf_dnp3_ctl_secfunc,
2597 { "Control Function Code", "dnp3.ctl.secfunc", FT_UINT8, BASE_DEC,
2598 VALS(dnp3_ctl_func_sec_vals), DNP3_CTL_FUNC, "Frame Control Function Code", HFILL }},
2601 { "Direction", "dnp3.ctl.dir", FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_CTL_DIR, "", HFILL }},
2604 { "Primary", "dnp3.ctl.prm", FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_CTL_PRM, "", HFILL }},
2607 { "Frame Count Bit", "dnp3.ctl.fcb", FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_CTL_FCB, "", HFILL }},
2610 { "Frame Count Valid", "dnp3.ctl.fcv", FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_CTL_FCV, "", HFILL }},
2613 { "Data Flow Control", "dnp3.ctl.dfc", FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_CTL_DFC, "", HFILL }},
2616 { "Destination", "dnp3.dst", FT_UINT16, BASE_DEC, NULL, 0x0, "Destination Address", HFILL }},
2619 { "Source", "dnp3.src", FT_UINT16, BASE_DEC, NULL, 0x0, "Source Address", HFILL }},
2622 { "CRC", "dnp3.hdr.CRC", FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL }},
2624 { &hf_dnp_hdr_CRC_bad,
2625 { "Bad CRC", "dnp3.hdr.CRC_bad", FT_BOOLEAN, BASE_NONE, NULL, 0x0, "", HFILL }},
2628 { "Transport Control", "dnp3.tr.ctl", FT_UINT8, BASE_HEX, NULL, 0x0, "Tranport Layer Control Byte", HFILL }},
2631 { "Final", "dnp3.tr.fin", FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_TR_FIN, "", HFILL }},
2634 { "First", "dnp3.tr.fir", FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_TR_FIR, "", HFILL }},
2637 { "Sequence", "dnp3.tr.seq", FT_UINT8, BASE_DEC, NULL, DNP3_TR_SEQ, "Frame Sequence Number", HFILL }},
2640 { "Application Control", "dnp3.al.ctl", FT_UINT8, BASE_HEX, NULL, 0x0, "Application Layer Control Byte", HFILL }},
2643 { "First", "dnp3.al.fir", FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_AL_FIR, "", HFILL }},
2646 { "Final", "dnp3.al.fin", FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_AL_FIN, "", HFILL }},
2649 { "Confirm", "dnp3.al.con", FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_AL_CON, "", HFILL }},
2652 { "Sequence", "dnp3.al.seq", FT_UINT8, BASE_DEC, NULL, DNP3_AL_SEQ, "Frame Sequence Number", HFILL }},
2655 { "Application Layer Function Code", "dnp3.al.func", FT_UINT8, BASE_DEC,
2656 VALS(dnp3_al_func_vals), DNP3_AL_FUNC, "Application Function Code", HFILL }},
2659 { "Application Layer IIN bits", "dnp3.al.iin", FT_UINT16, BASE_DEC, NULL, 0x0, "Application Layer IIN", HFILL }},
2661 { &hf_dnp3_al_iin_bmsg,
2662 { "Broadcast Msg Rx", "dnp3.al.iin.bmsg", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_BMSG, "", HFILL }},
2664 { &hf_dnp3_al_iin_cls1d,
2665 { "Class 1 Data Available", "dnp3.al.iin.cls1d", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_CLS1D, "", HFILL }},
2667 { &hf_dnp3_al_iin_cls2d,
2668 { "Class 2 Data Available", "dnp3.al.iin.cls2d", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_CLS2D, "", HFILL }},
2670 { &hf_dnp3_al_iin_cls3d,
2671 { "Class 3 Data Available", "dnp3.al.iin.cls3d", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_CLS3D, "", HFILL }},
2673 { &hf_dnp3_al_iin_tsr,
2674 { "Time Sync Required", "dnp3.al.iin.tsr", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_TSR, "", HFILL }},
2676 { &hf_dnp3_al_iin_dol,
2677 { "Digital Outputs in Local", "dnp3.al.iin.dol", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_DOL, "", HFILL }},
2679 { &hf_dnp3_al_iin_dt,
2680 { "Device Trouble", "dnp3.al.iin.dt", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_DT, "", HFILL }},
2682 { &hf_dnp3_al_iin_rst,
2683 { "Device Restart", "dnp3.al.iin.rst", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_RST, "", HFILL }},
2685 { &hf_dnp3_al_iin_obju,
2686 { "Requested Objects Unknown", "dnp3.al.iin.obju", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_OBJU, "", HFILL }},
2688 { &hf_dnp3_al_iin_pioor,
2689 { "Parameters Invalid or Out of Range", "dnp3.al.iin.pioor", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_PIOOR, "", HFILL }},
2691 { &hf_dnp3_al_iin_ebo,
2692 { "Event Buffer Overflow", "dnp3.al.iin.ebo", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_EBO, "", HFILL }},
2694 { &hf_dnp3_al_iin_oae,
2695 { "Operation Already Executing", "dnp3.al.iin.oae", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_OAE, "", HFILL }},
2697 { &hf_dnp3_al_iin_cc,
2698 { "Configuration Corrupt", "dnp3.al.iin.cc", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_CC, "", HFILL }},
2701 { "Object", "dnp3.al.obj", FT_UINT16, BASE_HEX, VALS(dnp3_al_obj_vals), 0x0, "Application Layer Object", HFILL }},
2703 { &hf_dnp3_al_objq_index,
2704 { "Index Prefix", "dnp3.al.objq.index", FT_UINT8, BASE_DEC, VALS(dnp3_al_objq_index_vals), AL_OBJQ_INDEX, "Object Index Prefixing", HFILL }},
2706 { &hf_dnp3_al_objq_code,
2707 { "Qualifier Code", "dnp3.al.objq.code", FT_UINT8, BASE_DEC, VALS(dnp3_al_objq_code_vals), AL_OBJQ_CODE, "Object Qualifier Code", HFILL }},
2709 { &hf_dnp3_al_range_start8,
2710 { "Start (8 bit)", "dnp3.al.range.start", FT_UINT8, BASE_DEC, NULL, 0x0, "Object Start Index", HFILL }},
2712 { &hf_dnp3_al_range_stop8,
2713 { "Stop (8 bit)", "dnp3.al.range.stop", FT_UINT8, BASE_DEC, NULL, 0x0, "Object Stop Index", HFILL }},
2715 { &hf_dnp3_al_range_start16,
2716 { "Start (16 bit)", "dnp3.al.range.start", FT_UINT16, BASE_DEC, NULL, 0x0, "Object Start Index", HFILL }},
2718 { &hf_dnp3_al_range_stop16,
2719 { "Stop (16 bit)", "dnp3.al.range.stop", FT_UINT16, BASE_DEC, NULL, 0x0, "Object Stop Index", HFILL }},
2721 { &hf_dnp3_al_range_start32,
2722 { "Start (32 bit)", "dnp3.al.range.start", FT_UINT32, BASE_DEC, NULL, 0x0, "Object Start Index", HFILL }},
2724 { &hf_dnp3_al_range_stop32,
2725 { "Stop (32 bit)", "dnp3.al.range.stop", FT_UINT32, BASE_DEC, NULL, 0x0, "Object Stop Index", HFILL }},
2727 { &hf_dnp3_al_range_abs8,
2728 { "Address (8 bit)", "dnp3.al.range.abs", FT_UINT8, BASE_DEC, NULL, 0x0, "Object Absolute Address", HFILL }},
2730 { &hf_dnp3_al_range_abs16,
2731 { "Address (16 bit)", "dnp3.al.range.abs", FT_UINT16, BASE_DEC, NULL, 0x0, "Object Absolute Address", HFILL }},
2733 { &hf_dnp3_al_range_abs32,
2734 { "Address (32 bit)", "dnp3.al.range.abs", FT_UINT32, BASE_DEC, NULL, 0x0, "Object Absolute Address", HFILL }},
2736 { &hf_dnp3_al_range_quant8,
2737 { "Quantity (8 bit)", "dnp3.al.range.quantity", FT_UINT8, BASE_DEC, NULL, 0x0, "Object Quantity", HFILL }},
2739 { &hf_dnp3_al_range_quant16,
2740 { "Quantity (16 bit)", "dnp3.al.range.quantity", FT_UINT16, BASE_DEC, NULL, 0x0, "Object Quantity", HFILL }},
2742 { &hf_dnp3_al_range_quant32,
2743 { "Quantity (32 bit)", "dnp3.al.range.quantity", FT_UINT32, BASE_DEC, NULL, 0x0, "Object Quantity", HFILL }},
2745 { &hf_dnp3_al_index8,
2746 { "Index (8 bit)", "dnp3.al.index", FT_UINT8, BASE_DEC, NULL, 0x0, "Object Index", HFILL }},
2748 { &hf_dnp3_al_index16,
2749 { "Index (16 bit)", "dnp3.al.index", FT_UINT16, BASE_DEC, NULL, 0x0, "Object Index", HFILL }},
2751 { &hf_dnp3_al_index32,
2752 { "Index (32 bit)", "dnp3.al.index", FT_UINT32, BASE_DEC, NULL, 0x0, "Object Index", HFILL }},
2754 { &hf_dnp3_al_ptnum,
2755 { "Object Point Number", "dnp3.al.ptnum", FT_UINT16, BASE_DEC, NULL, 0x0, "Object Point Number", HFILL }},
2758 { "Value (bit)", "dnp3.al.bit", FT_BOOLEAN, BASE_NONE, TFS(&tfs_on_off), 0x1, "Digital Value (1 bit)", HFILL }},
2761 { "Value (two bit)", "dnp3.al.2bit", FT_UINT8, BASE_DEC, NULL, 0x0, "Digital Value (2 bit)", HFILL }},
2763 { &hf_dnp3_al_ana16,
2764 { "Value (16 bit)", "dnp3.al.ana", FT_UINT16, BASE_DEC, NULL, 0x0, "Analog Value (16 bit)", HFILL }},
2766 { &hf_dnp3_al_ana32,
2767 { "Value (32 bit)", "dnp3.al.ana", FT_UINT32, BASE_DEC, NULL, 0x0, "Analog Value (32 bit)", HFILL }},
2769 { &hf_dnp3_al_anaflt,
2770 { "Value (float)", "dnp3.al.ana", FT_FLOAT, BASE_DEC, NULL, 0x0, "Analog Value (float)", HFILL }},
2772 { &hf_dnp3_al_anadbl,
2773 { "Value (double)", "dnp3.al.ana", FT_DOUBLE, BASE_DEC, NULL, 0x0, "Analog Value (double)", HFILL }},
2775 { &hf_dnp3_al_anaout16,
2776 { "Output Value (16 bit)", "dnp3.al.anaout", FT_UINT16, BASE_DEC, NULL, 0x0, "Output Value (16 bit)", HFILL }},
2778 { &hf_dnp3_al_anaout32,
2779 { "Output Value (32 bit)", "dnp3.al.anaout", FT_UINT32, BASE_DEC, NULL, 0x0, "Output Value (32 bit)", HFILL }},
2781 { &hf_dnp3_al_anaoutflt,
2782 { "Output Value (float)", "dnp3.al.anaout", FT_FLOAT, BASE_DEC, NULL, 0x0, "Output Value (float)", HFILL }},
2784 { &hf_dnp3_al_anaoutdbl,
2785 { "Output (double)", "dnp3.al.anaout", FT_DOUBLE, BASE_DEC, NULL, 0x0, "Output Value (double)", HFILL }},
2787 { &hf_dnp3_al_cnt16,
2788 { "Counter (16 bit)", "dnp3.al.cnt", FT_UINT16, BASE_DEC, NULL, 0x0, "Counter Value (16 bit)", HFILL }},
2790 { &hf_dnp3_al_cnt32,
2791 { "Counter (32 bit)", "dnp3.al.cnt", FT_UINT32, BASE_DEC, NULL, 0x0, "Counter Value (32 bit)", HFILL }},
2793 { &hf_dnp3_al_ctrlstatus,
2794 { "Control Status", "dnp3.al.ctrlstatus", FT_UINT8, BASE_DEC, dnp3_al_ctl_status_vals, 0xff, "Control Status", HFILL }},
2796 { &hf_dnp3_al_biq_b0,
2797 { "Online", "dnp3.al.biq.b0", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BI_FLAG0, "", HFILL }},
2799 { &hf_dnp3_al_biq_b1,
2800 { "Restart", "dnp3.al.biq.b1", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BI_FLAG1, "", HFILL }},
2802 { &hf_dnp3_al_biq_b2,
2803 { "Comm Fail", "dnp3.al.biq.b2", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BI_FLAG2, "", HFILL }},
2805 { &hf_dnp3_al_biq_b3,
2806 { "Remote Force", "dnp3.al.biq.b3", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BI_FLAG3, "", HFILL }},
2808 { &hf_dnp3_al_biq_b4,
2809 { "Local Force", "dnp3.al.biq.b4", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BI_FLAG4, "", HFILL }},
2811 { &hf_dnp3_al_biq_b5,
2812 { "Chatter Filter", "dnp3.al.biq.b5", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BI_FLAG5, "", HFILL }},
2814 { &hf_dnp3_al_biq_b6,
2815 { "Reserved", "dnp3.al.biq.b6", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BI_FLAG6, "", HFILL }},
2817 { &hf_dnp3_al_biq_b7,
2818 { "Point Value", "dnp3.al.biq.b7", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BI_FLAG7, "", HFILL }},
2820 { &hf_dnp3_al_boq_b0,
2821 { "Online", "dnp3.al.boq.b0", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BO_FLAG0, "", HFILL }},
2823 { &hf_dnp3_al_boq_b1,
2824 { "Restart", "dnp3.al.boq.b1", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BO_FLAG1, "", HFILL }},
2826 { &hf_dnp3_al_boq_b2,
2827 { "Comm Fail", "dnp3.al.boq.b2", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BO_FLAG2, "", HFILL }},
2829 { &hf_dnp3_al_boq_b3,
2830 { "Remote Force", "dnp3.al.boq.b3", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BO_FLAG3, "", HFILL }},
2832 { &hf_dnp3_al_boq_b4,
2833 { "Local Force", "dnp3.al.boq.b4", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BO_FLAG4, "", HFILL }},
2835 { &hf_dnp3_al_boq_b5,
2836 { "Reserved", "dnp3.al.boq.b5", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BO_FLAG5, "", HFILL }},
2838 { &hf_dnp3_al_boq_b6,
2839 { "Reserved", "dnp3.al.boq.b6", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BO_FLAG6, "", HFILL }},
2841 { &hf_dnp3_al_boq_b7,
2842 { "Point Value", "dnp3.al.boq.b7", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BO_FLAG7, "", HFILL }},
2844 { &hf_dnp3_al_ctrq_b0,
2845 { "Online", "dnp3.al.ctrq.b0", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_CTR_FLAG0, "", HFILL }},
2847 { &hf_dnp3_al_ctrq_b1,
2848 { "Restart", "dnp3.al.ctrq.b1", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_CTR_FLAG1, "", HFILL }},
2850 { &hf_dnp3_al_ctrq_b2,
2851 { "Comm Fail", "dnp3.al.ctrq.b2", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_CTR_FLAG2, "", HFILL }},
2853 { &hf_dnp3_al_ctrq_b3,
2854 { "Remote Force", "dnp3.al.ctrq.b3", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_CTR_FLAG3, "", HFILL }},
2856 { &hf_dnp3_al_ctrq_b4,
2857 { "Local Force", "dnp3.al.ctrq.b4", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_CTR_FLAG4, "", HFILL }},
2859 { &hf_dnp3_al_ctrq_b5,
2860 { "Roll-Over", "dnp3.al.ctrq.b5", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_CTR_FLAG5, "", HFILL }},
2862 { &hf_dnp3_al_ctrq_b6,
2863 { "Discontinuity", "dnp3.al.ctrq.b6", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_CTR_FLAG6, "", HFILL }},
2865 { &hf_dnp3_al_ctrq_b7,
2866 { "Reserved", "dnp3.al.ctrq.b7", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_CTR_FLAG7, "", HFILL }},
2868 { &hf_dnp3_al_aiq_b0,
2869 { "Online", "dnp3.al.aiq.b0", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AI_FLAG0, "", HFILL }},
2871 { &hf_dnp3_al_aiq_b1,
2872 { "Restart", "dnp3.al.aiq.b1", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AI_FLAG1, "", HFILL }},
2874 { &hf_dnp3_al_aiq_b2,
2875 { "Comm Fail", "dnp3.al.aiq.b2", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AI_FLAG2, "", HFILL }},
2877 { &hf_dnp3_al_aiq_b3,
2878 { "Remote Force", "dnp3.al.aiq.b3", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AI_FLAG3, "", HFILL }},
2880 { &hf_dnp3_al_aiq_b4,
2881 { "Local Force", "dnp3.al.aiq.b4", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AI_FLAG4, "", HFILL }},
2883 { &hf_dnp3_al_aiq_b5,
2884 { "Over-Range", "dnp3.al.aiq.b5", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AI_FLAG5, "", HFILL }},
2886 { &hf_dnp3_al_aiq_b6,
2887 { "Reference Check", "dnp3.al.aiq.b6", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AI_FLAG6, "", HFILL }},
2889 { &hf_dnp3_al_aiq_b7,
2890 { "Reserved", "dnp3.al.aiq.b7", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AI_FLAG7, "", HFILL }},
2892 { &hf_dnp3_al_aoq_b0,
2893 { "Online", "dnp3.al.aoq.b0", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AO_FLAG0, "", HFILL }},
2895 { &hf_dnp3_al_aoq_b1,
2896 { "Restart", "dnp3.al.aoq.b1", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AO_FLAG1, "", HFILL }},
2898 { &hf_dnp3_al_aoq_b2,
2899 { "Comm Fail", "dnp3.al.aoq.b2", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AO_FLAG2, "", HFILL }},
2901 { &hf_dnp3_al_aoq_b3,
2902 { "Remote Force", "dnp3.al.aoq.b3", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AO_FLAG3, "", HFILL }},
2904 { &hf_dnp3_al_aoq_b4,
2905 { "Local Force", "dnp3.al.aoq.b4", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AO_FLAG4, "", HFILL }},
2907 { &hf_dnp3_al_aoq_b5,
2908 { "Reserved", "dnp3.al.aoq.b5", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AO_FLAG5, "", HFILL }},
2910 { &hf_dnp3_al_aoq_b6,
2911 { "Reserved", "dnp3.al.aoq.b6", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AO_FLAG6, "", HFILL }},
2913 { &hf_dnp3_al_aoq_b7,
2914 { "Reserved", "dnp3.al.aoq.b7", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AO_FLAG7, "", HFILL }},
2916 { &hf_dnp3_al_timestamp,
2917 { "Timestamp", "dnp3.al.timestamp", FT_ABSOLUTE_TIME, BASE_NONE, NULL, 0, "Object Timestamp", HFILL }},
2919 { &hf_dnp3_al_rel_timestamp,
2920 { "Relative Timestamp", "dnp3.al.reltimestamp", FT_RELATIVE_TIME, BASE_NONE, NULL, 0, "Object Relative Timestamp", HFILL }},
2922 { &hf_dnp3_fragment,
2923 { "DNP 3.0 AL Fragment", "dnp3.al.fragment", FT_FRAMENUM, BASE_NONE, NULL, 0x0, "DNP 3.0 Application Layer Fragment", HFILL }},
2925 { &hf_dnp3_fragments,
2926 { "DNP 3.0 AL Fragments", "dnp3.al.fragments", FT_NONE, BASE_NONE, NULL, 0x0, "DNP 3.0 Application Layer Fragments", HFILL }},
2928 { &hf_dnp3_fragment_overlap,
2929 { "Fragment overlap", "dnp3.al.fragment.overlap", FT_BOOLEAN, BASE_NONE, NULL, 0x0, "Fragment overlaps with other fragments", HFILL }},
2931 { &hf_dnp3_fragment_overlap_conflict,
2932 { "Conflicting data in fragment overlap", "dnp3.al.fragment.overlap.conflict", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
2933 "Overlapping fragments contained conflicting data", HFILL }},
2935 { &hf_dnp3_fragment_multiple_tails,
2936 { "Multiple tail fragments found", "dnp3.al.fragment.multipletails", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
2937 "Several tails were found when defragmenting the packet", HFILL }},
2939 { &hf_dnp3_fragment_too_long_fragment,
2940 { "Fragment too long", "dnp3.al.fragment.toolongfragment", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
2941 "Fragment contained data past end of packet", HFILL }},
2943 { &hf_dnp3_fragment_error,
2944 { "Defragmentation error", "dnp3.al.fragment.error", FT_FRAMENUM, BASE_NONE, NULL, 0x0,
2945 "Defragmentation error due to illegal fragments", HFILL }},
2947 { &hf_dnp3_fragment_reassembled_in,
2948 { "Reassembled PDU In Frame", "dnp3.al.fragment.reassembled_in", FT_FRAMENUM, BASE_NONE, NULL, 0x0,
2949 "This PDU is reassembled in this frame", HFILL }}
2952 /* Setup protocol subtree array */
2953 static gint *ett[] = {
2963 &ett_dnp3_al_obj_qualifier,
2964 &ett_dnp3_al_obj_range,
2965 &ett_dnp3_al_objdet,
2966 &ett_dnp3_al_obj_quality,
2967 &ett_dnp3_al_obj_point,
2971 module_t *dnp3_module;
2973 /* Register protocol init routine */
2974 register_init_routine(&dnp3_init);
2976 /* Register the protocol name and description */
2977 proto_dnp3 = proto_register_protocol("Distributed Network Protocol 3.0",
2980 /* Required function calls to register the header fields and subtrees used */
2981 proto_register_field_array(proto_dnp3, hf, array_length(hf));
2982 proto_register_subtree_array(ett, array_length(ett));
2984 dnp3_module = prefs_register_protocol(proto_dnp3, NULL);
2985 prefs_register_bool_preference(dnp3_module, "desegment",
2986 "Reassemble DNP3 messages spanning multiple TCP segments",
2987 "Whether the DNP3 dissector should reassemble messages spanning multiple TCP segments."
2988 " To use this option, you must also enable \"Allow subdissectors to reassemble TCP streams\" in the TCP protocol settings.",
2991 al_defragment_init();
2995 /* If this dissector uses sub-dissector registration add a registration routine.
2996 This format is required because a script is used to find these routines and
2997 create the code that calls these routines.
3000 proto_reg_handoff_dnp3(void)
3002 dissector_handle_t dnp3_tcp_handle;
3003 dissector_handle_t dnp3_udp_handle;
3005 dnp3_tcp_handle = new_create_dissector_handle(dissect_dnp3_tcp, proto_dnp3);
3006 dnp3_udp_handle = new_create_dissector_handle(dissect_dnp3_udp, proto_dnp3);
3007 dissector_add("tcp.port", TCP_PORT_DNP, dnp3_tcp_handle);
3008 dissector_add("udp.port", UDP_PORT_DNP, dnp3_udp_handle);