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.
39 #include <epan/packet.h>
40 #include <epan/prefs.h>
41 #include <epan/reassemble.h>
42 #include <epan/emem.h>
43 #include <epan/dissectors/packet-tcp.h>
44 #include <epan/conversation.h>
45 #include <epan/expert.h>
52 * although note that you have to join the DNP organization to get to
53 * see the protocol specs online - otherwise, you have to buy a
56 * ...Application Layer Notes...
58 * Application Layer Decoding based on information available in
59 * DNP3 Basic 4 Documentation Set, specifically the document:
60 * "DNP V3.00 Application Layer" v0.03 P009-0PD.APP & Technical Bulletins
62 * ---------------------------------------------------------------------------
64 * Several command codes were missing, causing the dissector to abort decoding
65 * on valid packets. Those commands have been added.
67 * The semantics of Variation 0 have been cleaned up. Variation 0 is the
68 * "Default Variation". It is used only in Master -> Slave read commands
69 * to request the data in whatever variation the Slave is configured to use by
70 * default. Decoder strings have been added to the Binary Output and
71 * Analog Output objects (10 and 40) so that group read commands will
74 * Roy M. Silvernail <roy@rant-central.com> 01/05/2009
78 /***************************************************************************/
79 /* DNP 3.0 Constants */
80 /***************************************************************************/
81 #define DNP_HDR_LEN 10
82 #define TCP_PORT_DNP 20000
83 #define UDP_PORT_DNP 20000
85 /***************************************************************************/
86 /* Datalink and Transport Layer Bit-Masks */
87 /***************************************************************************/
88 #define DNP3_CTL_DIR 0x80
89 #define DNP3_CTL_PRM 0x40
90 #define DNP3_CTL_FCB 0x20
91 #define DNP3_CTL_FCV 0x10
92 #define DNP3_CTL_RES 0x20
93 #define DNP3_CTL_DFC 0x10
94 #define DNP3_CTL_FUNC 0x0f
96 #define DNP3_TR_FIR 0x40
97 #define DNP3_TR_FIN 0x80
98 #define DNP3_TR_SEQ 0x3f
100 #define AL_MAX_CHUNK_SIZE 16
102 /***************************************************************************/
103 /* Data Link Function codes */
104 /***************************************************************************/
105 /* Primary to Secondary */
106 #define DL_FUNC_RESET_LINK 0x00
107 #define DL_FUNC_RESET_PROC 0x01
108 #define DL_FUNC_TEST_LINK 0x02
109 #define DL_FUNC_USER_DATA 0x03
110 #define DL_FUNC_UNC_DATA 0x04
111 #define DL_FUNC_LINK_STAT 0x09
113 /* Secondary to Primary */
114 #define DL_FUNC_ACK 0x00
115 #define DL_FUNC_NACK 0x01
116 #define DL_FUNC_STAT_LINK 0x0B
117 #define DL_FUNC_NO_FUNC 0x0E
118 #define DL_FUNC_NOT_IMPL 0x0F
120 /***************************************************************************/
121 /* Application Layer Bit-Masks */
122 /***************************************************************************/
123 #define DNP3_AL_UNS 0x10
124 #define DNP3_AL_CON 0x20
125 #define DNP3_AL_FIN 0x40
126 #define DNP3_AL_FIR 0x80
127 #define DNP3_AL_SEQ 0x0f
128 #define DNP3_AL_FUNC 0xff
130 /***************************************************************************/
131 /* Application Layer Function codes */
132 /***************************************************************************/
133 #define AL_FUNC_CONFIRM 0x00 /* 00 - Confirm */
134 #define AL_FUNC_READ 0x01 /* 01 - Read */
135 #define AL_FUNC_WRITE 0x02 /* 02 - Write */
136 #define AL_FUNC_SELECT 0x03 /* 03 - Select */
137 #define AL_FUNC_OPERATE 0x04 /* 04 - Operate */
138 #define AL_FUNC_DIROP 0x05 /* 05 - Direct Operate */
139 #define AL_FUNC_DIROPNACK 0x06 /* 06 - Direct Operate No ACK */
140 #define AL_FUNC_FRZ 0x07 /* 07 - Immediate Freeze */
141 #define AL_FUNC_FRZNACK 0x08 /* 08 - Immediate Freeze No ACK */
142 #define AL_FUNC_FRZCLR 0x09 /* 09 - Freeze and Clear */
143 #define AL_FUNC_FRZCLRNACK 0x0A /* 10 - Freeze and Clear No ACK */
144 #define AL_FUNC_FRZT 0x0B /* 11 - Freeze With Time */
145 #define AL_FUNC_FRZTNACK 0x0C /* 12 - Freeze With Time No ACK */
146 #define AL_FUNC_COLDRST 0x0D /* 13 - Cold Restart */
147 #define AL_FUNC_WARMRST 0x0E /* 14 - Warm Restart */
148 #define AL_FUNC_INITDATA 0x0F /* 15 - Initialize Data */
149 #define AL_FUNC_INITAPP 0x10 /* 16 - Initialize Application */
150 #define AL_FUNC_STARTAPP 0x11 /* 17 - Start Application */
151 #define AL_FUNC_STOPAPP 0x12 /* 18 - Stop Application */
152 #define AL_FUNC_SAVECFG 0x13 /* 19 - Save Configuration */
153 #define AL_FUNC_ENSPMSG 0x14 /* 20 - Enable Spontaneous Msg */
154 #define AL_FUNC_DISSPMSG 0x15 /* 21 - Disable Spontaneous Msg */
155 #define AL_FUNC_ASSIGNCL 0x16 /* 22 - Assign Classes */
156 #define AL_FUNC_DELAYMST 0x17 /* 23 - Delay Measurement */
157 #define AL_FUNC_RECCT 0x18 /* 24 - Record Current Time */
158 #define AL_FUNC_OPENFILE 0x19 /* 25 - Open File */
159 #define AL_FUNC_CLOSEFILE 0x1A /* 26 - Close File */
160 #define AL_FUNC_DELETEFILE 0x1B /* 27 - Delete File */
161 #define AL_FUNC_GETFILEINF 0x1C /* 28 - Get File Info */
162 #define AL_FUNC_AUTHFILE 0x1D /* 29 - Authenticate File */
163 #define AL_FUNC_ABORTFILE 0x1E /* 30 - Abort File */
164 #define AL_FUNC_ACTCNF 0x1F /* 31 - Activate Config */
165 #define AL_FUNC_AUTHREQ 0x20 /* 32 - Authentication Request */
166 #define AL_FUNC_AUTHERR 0x21 /* 33 - Authentication Error */
167 #define AL_FUNC_RESPON 0x81 /* 129 - Response */
168 #define AL_FUNC_UNSOLI 0x82 /* 130 - Unsolicited Response */
169 #define AL_FUNC_AUTHRESP 0x83 /* 131 - Authentication Response */
171 /***************************************************************************/
172 /* Application Layer Internal Indication (IIN) bits */
173 /* 2 Bytes, message formatting: [First Octet] | [Second Octet] */
174 /***************************************************************************/
176 #define AL_IIN_BMSG 0x0100 /* Bit 0 - Broadcast message rx'd */
177 #define AL_IIN_CLS1D 0x0200 /* Bit 1 - Class 1 Data Available */
178 #define AL_IIN_CLS2D 0x0400 /* Bit 2 - Class 2 Data Available */
179 #define AL_IIN_CLS3D 0x0800 /* Bit 3 - Class 3 Data Available */
180 #define AL_IIN_TSR 0x1000 /* Bit 4 - Time Sync Req'd from Master */
181 #define AL_IIN_DOL 0x2000 /* Bit 5 - Digital Outputs in Local Mode */
182 #define AL_IIN_DT 0x4000 /* Bit 6 - Device Trouble */
183 #define AL_IIN_RST 0x8000 /* Bit 7 - Device Restart */
186 /* 0x0001 Bit 0 - Reserved */
187 #define AL_IIN_OBJU 0x0002 /* Bit 1 - Requested Objects Unknown */
188 #define AL_IIN_PIOOR 0x0004 /* Bit 2 - Parameters Invalid or Out of Range */
189 #define AL_IIN_EBO 0x0008 /* Bit 3 - Event Buffer Overflow */
190 #define AL_IIN_OAE 0x0010 /* Bit 4 - Operation Already Executing */
191 #define AL_IIN_CC 0x0020 /* Bit 5 - Device Configuration Corrupt */
192 /* 0x0040 Bit 6 - Reserved */
193 /* 0x0080 Bit 7 - Reserved */
195 /***************************************************************************/
196 /* Application Layer Data Object Qualifier */
197 /***************************************************************************/
199 #define AL_OBJQ_INDEX 0x70 /* x111xxxx Masks Index from Qualifier */
200 #define AL_OBJQ_CODE 0x0F /* xxxx1111 Masks Code from Qualifier */
202 /* Index Size (3-bits x111xxxx) */
203 /* When Qualifier Code != 11 */
204 #define AL_OBJQL_IDX_NI 0x00 /* Objects are Packed with no index */
205 #define AL_OBJQL_IDX_1O 0x01 /* Objects are prefixed w/ 1-octet index */
206 #define AL_OBJQL_IDX_2O 0x02 /* Objects are prefixed w/ 2-octet index */
207 #define AL_OBJQL_IDX_4O 0x03 /* Objects are prefixed w/ 4-octet index */
208 #define AL_OBJQL_IDX_1OS 0x04 /* Objects are prefixed w/ 1-octet object size */
209 #define AL_OBJQL_IDX_2OS 0x05 /* Objects are prefixed w/ 2-octet object size */
210 #define AL_OBJQL_IDX_4OS 0x06 /* Objects are prefixed w/ 4-octet object size */
212 /* When Qualifier Code == 11 */
213 #define AL_OBJQL_IDX11_1OIS 0x01 /* 1 octet identifier size */
214 #define AL_OBJQL_IDX11_2OIS 0x02 /* 2 octet identifier size */
215 #define AL_OBJQL_IDX11_4OIS 0x03 /* 4 octet identifier size */
217 /* Qualifier Code (4-bits) */
218 /* 4-bits ( xxxx1111 ) */
219 #define AL_OBJQL_CODE_SSI8 0x00 /* 00 8-bit Start and Stop Indices in Range Field */
220 #define AL_OBJQL_CODE_SSI16 0x01 /* 01 16-bit Start and Stop Indices in Range Field */
221 #define AL_OBJQL_CODE_SSI32 0x02 /* 02 32-bit Start and Stop Indices in Range Field */
222 #define AL_OBJQL_CODE_AA8 0x03 /* 03 8-bit Absolute Address in Range Field */
223 #define AL_OBJQL_CODE_AA16 0x04 /* 04 16-bit Absolute Address in Range Field */
224 #define AL_OBJQL_CODE_AA32 0x05 /* 05 32-bit Absolute Address in Range Field */
225 #define AL_OBJQL_CODE_R0 0x06 /* 06 Length of Range field is 0 (no range field) */
226 #define AL_OBJQL_CODE_SF8 0x07 /* 07 8-bit Single Field Quantity */
227 #define AL_OBJQL_CODE_SF16 0x08 /* 08 16-bit Single Field Quantity */
228 #define AL_OBJQL_CODE_SF32 0x09 /* 09 32-bit Single Field Quantity */
229 /* 0x0A 10 Reserved */
230 #define AL_OBJQL_CODE_FF 0x0B /* 11 Free-format Qualifier */
231 /* 0x0C 12 Reserved */
232 /* 0x0D 13 Reserved */
233 /* 0x0E 14 Reserved */
234 /* 0x0F 15 Reserved */
236 /***************************************************************************/
237 /* Application Layer Data Object Definitions */
238 /***************************************************************************/
239 /* Binary Input Objects */
240 #define AL_OBJ_BI_ALL 0x0100 /* 01 00 Binary Input Default Variation */
241 #define AL_OBJ_BI_1BIT 0x0101 /* 01 01 Single-bit Binary Input */
242 #define AL_OBJ_BI_STAT 0x0102 /* 01 02 Binary Input With Status */
243 #define AL_OBJ_BIC_ALL 0x0200 /* 02 00 Binary Input Change Default Variation */
244 #define AL_OBJ_BIC_NOTIME 0x0201 /* 02 01 Binary Input Change Without Time */
245 #define AL_OBJ_BIC_TIME 0x0202 /* 02 02 Binary Input Change With Time */
246 #define AL_OBJ_BIC_RTIME 0x0203 /* 02 03 Binary Input Change With Relative Time */
248 /* Double-bit Input Objects */
249 #define AL_OBJ_2BI_ALL 0x0300 /* 03 00 Double-bit Input Default Variation */
250 #define AL_OBJ_2BI_NF 0x0301 /* 03 01 Double-bit Input No Flags */
251 #define AL_OBJ_2BI_STAT 0x0302 /* 03 02 Double-bit Input With Status */
252 #define AL_OBJ_2BIC_NOTIME 0x0401 /* 04 01 Double-bit Input Change Without Time */
253 #define AL_OBJ_2BIC_TIME 0x0402 /* 04 02 Double-bit Input Change With Time */
254 #define AL_OBJ_2BIC_RTIME 0x0403 /* 04 03 Double-bit Input Change With Relative Time */
256 /* Binary Input Quality Flags */
257 #define AL_OBJ_BI_FLAG0 0x0001 /* Point Online (0=Offline; 1=Online) */
258 #define AL_OBJ_BI_FLAG1 0x0002 /* Restart (0=Normal; 1=Restart) */
259 #define AL_OBJ_BI_FLAG2 0x0004 /* Comms Lost (0=Normal; 1=Lost) */
260 #define AL_OBJ_BI_FLAG3 0x0008 /* Remote Force (0=Normal; 1=Forced) */
261 #define AL_OBJ_BI_FLAG4 0x0010 /* Local Force (0=Normal; 1=Forced) */
262 #define AL_OBJ_BI_FLAG5 0x0020 /* Chatter Filter (0=Normal; 1=Filter On) */
263 #define AL_OBJ_BI_FLAG6 0x0040 /* Double-bit LSB (0=Off; 1=On) */
264 #define AL_OBJ_BI_FLAG7 0x0080 /* Point State (0=Off; 1=On) or Double-bit MSB */
266 /***************************************************************************/
267 /* Binary Output Objects */
268 #define AL_OBJ_BO_ALL 0x0A00 /* 10 00 Binary Output Default Variation */
269 #define AL_OBJ_BO 0x0A01 /* 10 01 Binary Output */
270 #define AL_OBJ_BO_STAT 0x0A02 /* 10 02 Binary Output Status */
271 #define AL_OBJ_CTLOP_BLK 0x0C01 /* 12 01 Control Relay Output Block */
272 /* 0x0C02 12 02 Pattern Control Block */
273 /* 0x0C03 12 03 Pattern Mask */
275 #define AL_OBJCTLC_CODE 0x0F /* Bit-Mask xxxx1111 for Control Code 'Code' */
276 #define AL_OBJCTLC_MISC 0x30 /* Bit-Mask xx11xxxx for Control Code Misc Values */
277 #define AL_OBJCTLC_TC 0xC0 /* Bit-Mask 11xxxxxx for Control Code 'Trip/Close' */
279 #define AL_OBJCTLC_CODE0 0x00 /* xxxx0000 NUL Operation; only process R attribute */
280 #define AL_OBJCTLC_CODE1 0x01 /* xxxx0001 Pulse On ^On-Time -> vOff-Time, remain off */
281 #define AL_OBJCTLC_CODE2 0x02 /* xxxx0010 Pulse Off vOff-Time -> ^On-Time, remain on */
282 #define AL_OBJCTLC_CODE3 0x03 /* xxxx0011 Latch On */
283 #define AL_OBJCTLC_CODE4 0x04 /* xxxx0100 Latch Off */
284 /* 0x05-0x15 Reserved */
286 #define AL_OBJCTLC_QUEUE 0x10 /* xxx1xxxx for Control Code 'Queue' */
287 #define AL_OBJCTLC_CLEAR 0x20 /* xx1xxxxx for Control Code 'Clear' */
289 #define AL_OBJCTLC_TC0 0x00 /* 00xxxxxx NUL */
290 #define AL_OBJCTLC_TC1 0x40 /* 01xxxxxx Close */
291 #define AL_OBJCTLC_TC2 0x80 /* 10xxxxxx Trip */
293 #define AL_OBJCTL_STAT0 0x00 /* Request Accepted, Initiated or Queued */
294 #define AL_OBJCTL_STAT1 0x01 /* Request Not Accepted; Arm-timer expired */
295 #define AL_OBJCTL_STAT2 0x02 /* Request Not Accepted; No 'SELECT' rx'd */
296 #define AL_OBJCTL_STAT3 0x03 /* Request Not Accepted; Format errors in ctrl request */
297 #define AL_OBJCTL_STAT4 0x04 /* Control Operation Not Supported for this point */
298 #define AL_OBJCTL_STAT5 0x05 /* Request Not Accepted; Ctrl Queue full or pt. active */
299 #define AL_OBJCTL_STAT6 0x06 /* Request Not Accepted; Ctrl HW Problems */
300 #define AL_OBJCTL_STAT7 0x07 /* Request Not Accepted; Local/Remote switch in Local*/
301 #define AL_OBJCTL_STAT8 0x08 /* Request Not Accepted; Too many operations requested */
302 #define AL_OBJCTL_STAT9 0x09 /* Request Not Accepted; Insufficient authorization */
303 #define AL_OBJCTL_STAT10 0x0A /* Request Not Accepted; Local automation proc active */
305 /* Binary Output Quality Flags */
306 #define AL_OBJ_BO_FLAG0 0x0001 /* Point Online (0=Offline; 1=Online) */
307 #define AL_OBJ_BO_FLAG1 0x0002 /* Restart (0=Normal; 1=Restart) */
308 #define AL_OBJ_BO_FLAG2 0x0004 /* Comms Lost (0=Normal; 1=Lost) */
309 #define AL_OBJ_BO_FLAG3 0x0008 /* Remote Force (0=Normal; 1=Forced) */
310 #define AL_OBJ_BO_FLAG4 0x0010 /* Local Force (0=Normal; 1=Forced) */
311 #define AL_OBJ_BO_FLAG5 0x0020 /* Reserved */
312 #define AL_OBJ_BO_FLAG6 0x0040 /* Reserved */
313 #define AL_OBJ_BO_FLAG7 0x0080 /* Point State (0=Off; 1=On) */
315 /***************************************************************************/
316 /* Counter Objects */
317 #define AL_OBJ_CTR_ALL 0x1400 /* 20 00 Binary Counter Default Variation */
318 #define AL_OBJ_CTR_32 0x1401 /* 20 01 32-Bit Binary Counter */
319 #define AL_OBJ_CTR_16 0x1402 /* 20 02 16-Bit Binary Counter */
320 #define AL_OBJ_DCTR_32 0x1403 /* 20 03 32-Bit Delta Counter */
321 #define AL_OBJ_DCTR_16 0x1404 /* 20 04 16-Bit Delta Counter */
322 #define AL_OBJ_CTR_32NF 0x1405 /* 20 05 32-Bit Binary Counter Without Flag */
323 #define AL_OBJ_CTR_16NF 0x1406 /* 20 06 16-Bit Binary Counter Without Flag */
324 #define AL_OBJ_DCTR_32NF 0x1407 /* 20 07 32-Bit Delta Counter Without Flag */
325 #define AL_OBJ_DCTR_16NF 0x1408 /* 20 08 16-Bit Delta Counter Without Flag */
326 #define AL_OBJ_FCTR_ALL 0x1500 /* 21 00 Frozen Binary Counter Default Variation */
327 #define AL_OBJ_FCTR_32 0x1501 /* 21 01 32-Bit Frozen Counter */
328 #define AL_OBJ_FCTR_16 0x1502 /* 21 02 16-Bit Frozen Counter */
329 #define AL_OBJ_FDCTR_32 0x1503 /* 21 03 32-Bit Frozen Delta Counter */
330 #define AL_OBJ_FDCTR_16 0x1504 /* 21 04 16-Bit Frozen Delta Counter */
331 #define AL_OBJ_FCTR_32T 0x1505 /* 21 05 32-Bit Frozen Counter w/ Time of Freeze */
332 #define AL_OBJ_FCTR_16T 0x1506 /* 21 06 16-Bit Frozen Counter w/ Time of Freeze */
333 #define AL_OBJ_FDCTR_32T 0x1507 /* 21 07 32-Bit Frozen Delta Counter w/ Time of Freeze */
334 #define AL_OBJ_FDCTR_16T 0x1508 /* 21 08 16-Bit Frozen Delta Counter w/ Time of Freeze */
335 #define AL_OBJ_FCTR_32NF 0x1509 /* 21 09 32-Bit Frozen Counter Without Flag */
336 #define AL_OBJ_FCTR_16NF 0x1510 /* 21 10 16-Bit Frozen Counter Without Flag */
337 #define AL_OBJ_FDCTR_32NF 0x1511 /* 21 11 32-Bit Frozen Delta Counter Without Flag */
338 #define AL_OBJ_FDCTR_16NF 0x1512 /* 21 12 16-Bit Frozen Delta Counter Without Flag */
339 #define AL_OBJ_CTRC_ALL 0x1600 /* 22 00 Counter Change Event Default Variation */
340 #define AL_OBJ_CTRC_32 0x1601 /* 22 01 32-Bit Counter Change Event w/o Time */
341 #define AL_OBJ_CTRC_16 0x1602 /* 22 02 16-Bit Counter Change Event w/o Time */
342 #define AL_OBJ_DCTRC_32 0x1603 /* 22 03 32-Bit Delta Counter Change Event w/o Time */
343 #define AL_OBJ_DCTRC_16 0x1604 /* 22 04 16-Bit Delta Counter Change Event w/o Time */
344 #define AL_OBJ_CTRC_32T 0x1605 /* 22 05 32-Bit Counter Change Event with Time */
345 #define AL_OBJ_CTRC_16T 0x1606 /* 22 06 16-Bit Counter Change Event with Time */
346 #define AL_OBJ_DCTRC_32T 0x1607 /* 22 07 32-Bit Delta Counter Change Event with Time */
347 #define AL_OBJ_DCTRC_16T 0x1608 /* 22 08 16-Bit Delta Counter Change Event with Time */
348 #define AL_OBJ_FCTRC_ALL 0x1700 /* 21 00 Frozen Binary Counter Change Event Default Variation */
349 #define AL_OBJ_FCTRC_32 0x1701 /* 21 01 32-Bit Frozen Counter Change Event */
350 #define AL_OBJ_FCTRC_16 0x1702 /* 21 02 16-Bit Frozen Counter Change Event */
351 #define AL_OBJ_FDCTRC_32 0x1703 /* 21 03 32-Bit Frozen Delta Counter Change Event */
352 #define AL_OBJ_FDCTRC_16 0x1704 /* 21 04 16-Bit Frozen Delta Counter Change Event */
353 #define AL_OBJ_FCTRC_32T 0x1705 /* 21 05 32-Bit Frozen Counter Change Event w/ Time of Freeze */
354 #define AL_OBJ_FCTRC_16T 0x1706 /* 21 06 16-Bit Frozen Counter Change Event w/ Time of Freeze */
355 #define AL_OBJ_FDCTRC_32T 0x1707 /* 21 07 32-Bit Frozen Delta Counter Change Event w/ Time of Freeze */
356 #define AL_OBJ_FDCTRC_16T 0x1708 /* 21 08 16-Bit Frozen Delta Counter Change Event w/ Time of Freeze */
358 /* Counter Quality Flags */
359 #define AL_OBJ_CTR_FLAG0 0x0001 /* Point Online (0=Offline; 1=Online) */
360 #define AL_OBJ_CTR_FLAG1 0x0002 /* Restart (0=Normal; 1=Restart) */
361 #define AL_OBJ_CTR_FLAG2 0x0004 /* Comms Lost (0=Normal; 1=Lost) */
362 #define AL_OBJ_CTR_FLAG3 0x0008 /* Remote Force (0=Normal; 1=Forced) */
363 #define AL_OBJ_CTR_FLAG4 0x0010 /* Local Force (0=Normal; 1=Forced) */
364 #define AL_OBJ_CTR_FLAG5 0x0020 /* Roll-over (0=Normal; 1=Roll-Over) */
365 #define AL_OBJ_CTR_FLAG6 0x0040 /* Discontinuity (0=Normal; 1=Discontinuity) */
366 #define AL_OBJ_CTR_FLAG7 0x0080 /* Reserved */
368 /***************************************************************************/
369 /* Analog Input Objects */
370 #define AL_OBJ_AI_ALL 0x1E00 /* 30 00 Analog Input Default Variation */
371 #define AL_OBJ_AI_32 0x1E01 /* 30 01 32-Bit Analog Input */
372 #define AL_OBJ_AI_16 0x1E02 /* 30 02 16-Bit Analog Input */
373 #define AL_OBJ_AI_32NF 0x1E03 /* 30 03 32-Bit Analog Input Without Flag */
374 #define AL_OBJ_AI_16NF 0x1E04 /* 30 04 16-Bit Analog Input Without Flag */
375 #define AL_OBJ_AI_FLT 0x1E05 /* 30 05 32-Bit Floating Point Input */
376 #define AL_OBJ_AI_DBL 0x1E06 /* 30 06 64-Bit Floating Point Input */
377 /* 0x1F01 31 01 32-Bit Frozen Analog Input */
378 /* 0x1F02 31 02 16-Bit Frozen Analog Input */
379 /* 0x1F03 31 03 32-Bit Frozen Analog Input w/ Time of Freeze */
380 /* 0x1F04 31 04 16-Bit Frozen Analog Input w/ Time of Freeze */
381 /* 0x1F05 31 05 32-Bit Frozen Analog Input Without Flag */
382 /* 0x1F06 31 06 16-Bit Frozen Analog Input Without Flag */
383 #define AL_OBJ_AIF_FLT 0x1F07 /* 31 07 32-Bit Frozen Floating Point Input */
384 #define AL_OBJ_AIF_DBL 0x1F08 /* 31 08 64-Bit Frozen Floating Point Input */
385 #define AL_OBJ_AIC_ALL 0x2000 /* 32 00 Analog Input Change Default Variation */
386 #define AL_OBJ_AIC_32NT 0x2001 /* 32 01 32-Bit Analog Change Event w/o Time */
387 #define AL_OBJ_AIC_16NT 0x2002 /* 32 02 16-Bit Analog Change Event w/o Time */
388 #define AL_OBJ_AIC_32T 0x2003 /* 32 03 32-Bit Analog Change Event w/ Time */
389 #define AL_OBJ_AIC_16T 0x2004 /* 32 04 16-Bit Analog Change Event w/ Time */
390 #define AL_OBJ_AIC_FLTNT 0x2005 /* 32 05 32-Bit Floating Point Change Event w/o Time*/
391 #define AL_OBJ_AIC_DBLNT 0x2006 /* 32 06 64-Bit Floating Point Change Event w/o Time*/
392 #define AL_OBJ_AIC_FLTT 0x2007 /* 32 07 32-Bit Floating Point Change Event w/ Time*/
393 #define AL_OBJ_AIC_DBLT 0x2008 /* 32 08 64-Bit Floating Point Change Event w/ Time*/
394 /* 0x2101 33 01 32-Bit Frozen Analog Event w/o Time */
395 /* 0x2102 33 02 16-Bit Frozen Analog Event w/o Time */
396 /* 0x2103 33 03 32-Bit Frozen Analog Event w/ Time */
397 /* 0x2104 33 04 16-Bit Frozen Analog Event w/ Time */
398 #define AL_OBJ_AIFC_FLTNT 0x2105 /* 33 05 32-Bit Floating Point Frozen Change Event w/o Time*/
399 #define AL_OBJ_AIFC_DBLNT 0x2106 /* 33 06 64-Bit Floating Point Frozen Change Event w/o Time*/
400 #define AL_OBJ_AIFC_FLTT 0x2107 /* 33 07 32-Bit Floating Point Frozen Change Event w/ Time*/
401 #define AL_OBJ_AIFC_DBLT 0x2108 /* 33 08 64-Bit Floating Point Frozen Change Event w/ Time*/
404 /* Analog Input Quality Flags */
405 #define AL_OBJ_AI_FLAG0 0x0001 /* Point Online (0=Offline; 1=Online) */
406 #define AL_OBJ_AI_FLAG1 0x0002 /* Restart (0=Normal; 1=Restart) */
407 #define AL_OBJ_AI_FLAG2 0x0004 /* Comms Lost (0=Normal; 1=Lost) */
408 #define AL_OBJ_AI_FLAG3 0x0008 /* Remote Force (0=Normal; 1=Forced) */
409 #define AL_OBJ_AI_FLAG4 0x0010 /* Local Force (0=Normal; 1=Forced) */
410 #define AL_OBJ_AI_FLAG5 0x0020 /* Over-Range (0=Normal; 1=Over-Range) */
411 #define AL_OBJ_AI_FLAG6 0x0040 /* Reference Check (0=Normal; 1=Error) */
412 #define AL_OBJ_AI_FLAG7 0x0080 /* Reserved */
414 /***************************************************************************/
415 /* Analog Output Objects */
416 #define AL_OBJ_AO_ALL 0x2800 /* 40 00 Analog Output Default Variation */
417 #define AL_OBJ_AO_32 0x2801 /* 40 01 32-Bit Analog Output Status */
418 #define AL_OBJ_AO_16 0x2802 /* 40 02 16-Bit Analog Output Status */
419 #define AL_OBJ_AO_FLT 0x2803 /* 40 03 32-Bit Floating Point Output Status */
420 #define AL_OBJ_AO_DBL 0x2804 /* 40 04 64-Bit Floating Point Output Status */
421 #define AL_OBJ_AO_32OPB 0x2901 /* 41 01 32-Bit Analog Output Block */
422 #define AL_OBJ_AO_16OPB 0x2902 /* 41 02 16-Bit Analog Output Block */
423 #define AL_OBJ_AO_FLTOPB 0x2903 /* 41 03 32-Bit Floating Point Output Block */
424 #define AL_OBJ_AO_DBLOPB 0x2904 /* 41 04 64-Bit Floating Point Output Block */
426 /* Analog Output Quality Flags */
427 #define AL_OBJ_AO_FLAG0 0x0001 /* Point Online (0=Offline; 1=Online) */
428 #define AL_OBJ_AO_FLAG1 0x0002 /* Restart (0=Normal; 1=Restart) */
429 #define AL_OBJ_AO_FLAG2 0x0004 /* Comms Lost (0=Normal; 1=Lost) */
430 #define AL_OBJ_AO_FLAG3 0x0008 /* Remote Force (0=Normal; 1=Forced) */
431 #define AL_OBJ_AO_FLAG4 0x0010 /* Local Force (0=Normal; 1=Forced) */
432 #define AL_OBJ_AO_FLAG5 0x0020 /* Reserved */
433 #define AL_OBJ_AO_FLAG6 0x0040 /* Reserved */
434 #define AL_OBJ_AO_FLAG7 0x0080 /* Reserved */
436 /***************************************************************************/
438 #define AL_OBJ_TD_ALL 0x3200 /* 50 00 Time and Date Default Variation */
439 #define AL_OBJ_TD 0x3201 /* 50 01 Time and Date */
440 #define AL_OBJ_TDI 0x3202 /* 50 02 Time and Date w/ Interval */
441 #define AL_OBJ_TDR 0x3203 /* 50 03 Last Recorded Time and Date */
442 #define AL_OBJ_TDCTO 0x3301 /* 51 01 Time and Date CTO */
443 #define AL_OBJ_UTDCTO 0x3302 /* 51 02 Unsynchronized Time and Date CTO */
444 #define AL_OBJ_TDELAYC 0x3401 /* 52 01 Time Delay Coarse */
445 #define AL_OBJ_TDELAYF 0x3402 /* 52 02 Time Delay Fine */
447 /***************************************************************************/
448 /* Class Data Objects */
449 #define AL_OBJ_CLASS0 0x3C01 /* 60 01 Class 0 Data */
450 #define AL_OBJ_CLASS1 0x3C02 /* 60 02 Class 1 Data */
451 #define AL_OBJ_CLASS2 0x3C03 /* 60 03 Class 2 Data */
452 #define AL_OBJ_CLASS3 0x3C04 /* 60 04 Class 3 Data */
454 /***************************************************************************/
456 #define AL_OBJ_IIN 0x5001 /* 80 01 Internal Indications */
458 /***************************************************************************/
459 /* Octet String Objects */
460 #define AL_OBJ_OCT 0x6E00 /* 110 xx Octet string */
462 /***************************************************************************/
463 /* End of Application Layer Data Object Definitions */
464 /***************************************************************************/
466 /* Initialize the protocol and registered fields */
467 static int proto_dnp3 = -1;
468 static int hf_dnp3_start = -1;
469 static int hf_dnp3_len = -1;
470 static int hf_dnp3_ctl = -1;
471 static int hf_dnp3_ctl_prifunc = -1;
472 static int hf_dnp3_ctl_secfunc = -1;
473 static int hf_dnp3_ctl_dir = -1;
474 static int hf_dnp3_ctl_prm = -1;
475 static int hf_dnp3_ctl_fcb = -1;
476 static int hf_dnp3_ctl_fcv = -1;
477 static int hf_dnp3_ctl_dfc = -1;
478 static int hf_dnp3_dst = -1;
479 static int hf_dnp3_src = -1;
480 static int hf_dnp_hdr_CRC = -1;
481 static int hf_dnp_hdr_CRC_bad = -1;
482 static int hf_dnp3_tr_ctl = -1;
483 static int hf_dnp3_tr_fin = -1;
484 static int hf_dnp3_tr_fir = -1;
485 static int hf_dnp3_tr_seq = -1;
486 static int hf_dnp3_al_ctl = -1;
487 static int hf_dnp3_al_fir = -1;
488 static int hf_dnp3_al_fin = -1;
489 static int hf_dnp3_al_con = -1;
490 static int hf_dnp3_al_uns = -1;
491 static int hf_dnp3_al_seq = -1;
492 static int hf_dnp3_al_func = -1;
493 /* Added for Application Layer Decoding */
494 static int hf_dnp3_al_iin = -1;
495 static int hf_dnp3_al_iin_bmsg = -1;
496 static int hf_dnp3_al_iin_cls1d = -1;
497 static int hf_dnp3_al_iin_cls2d = -1;
498 static int hf_dnp3_al_iin_cls3d = -1;
499 static int hf_dnp3_al_iin_tsr = -1;
500 static int hf_dnp3_al_iin_dol = -1;
501 static int hf_dnp3_al_iin_dt = -1;
502 static int hf_dnp3_al_iin_rst = -1;
503 static int hf_dnp3_al_iin_obju = -1;
504 static int hf_dnp3_al_iin_pioor = -1;
505 static int hf_dnp3_al_iin_ebo = -1;
506 static int hf_dnp3_al_iin_oae = -1;
507 static int hf_dnp3_al_iin_cc = -1;
508 static int hf_dnp3_al_obj = -1;
509 static int hf_dnp3_al_objq_index = -1;
510 static int hf_dnp3_al_objq_code = -1;
511 static int hf_dnp3_al_range_start8 = -1;
512 static int hf_dnp3_al_range_stop8 = -1;
513 static int hf_dnp3_al_range_start16 = -1;
514 static int hf_dnp3_al_range_stop16 = -1;
515 static int hf_dnp3_al_range_start32 = -1;
516 static int hf_dnp3_al_range_stop32 = -1;
517 static int hf_dnp3_al_range_abs8 = -1;
518 static int hf_dnp3_al_range_abs16 = -1;
519 static int hf_dnp3_al_range_abs32 = -1;
520 static int hf_dnp3_al_range_quant8 = -1;
521 static int hf_dnp3_al_range_quant16 = -1;
522 static int hf_dnp3_al_range_quant32 = -1;
523 static int hf_dnp3_al_index8 = -1;
524 static int hf_dnp3_al_index16 = -1;
525 static int hf_dnp3_al_index32 = -1;
527 /*static int hf_dnp3_al_objq = -1;
528 static int hf_dnp3_al_nobj = -1; */
529 static int hf_dnp3_al_ptnum = -1;
530 static int hf_dnp3_al_biq_b0 = -1;
531 static int hf_dnp3_al_biq_b1 = -1;
532 static int hf_dnp3_al_biq_b2 = -1;
533 static int hf_dnp3_al_biq_b3 = -1;
534 static int hf_dnp3_al_biq_b4 = -1;
535 static int hf_dnp3_al_biq_b5 = -1;
536 static int hf_dnp3_al_biq_b6 = -1;
537 static int hf_dnp3_al_biq_b7 = -1;
538 static int hf_dnp3_al_boq_b0 = -1;
539 static int hf_dnp3_al_boq_b1 = -1;
540 static int hf_dnp3_al_boq_b2 = -1;
541 static int hf_dnp3_al_boq_b3 = -1;
542 static int hf_dnp3_al_boq_b4 = -1;
543 static int hf_dnp3_al_boq_b5 = -1;
544 static int hf_dnp3_al_boq_b6 = -1;
545 static int hf_dnp3_al_boq_b7 = -1;
546 static int hf_dnp3_al_ctrq_b0 = -1;
547 static int hf_dnp3_al_ctrq_b1 = -1;
548 static int hf_dnp3_al_ctrq_b2 = -1;
549 static int hf_dnp3_al_ctrq_b3 = -1;
550 static int hf_dnp3_al_ctrq_b4 = -1;
551 static int hf_dnp3_al_ctrq_b5 = -1;
552 static int hf_dnp3_al_ctrq_b6 = -1;
553 static int hf_dnp3_al_ctrq_b7 = -1;
554 static int hf_dnp3_al_aiq_b0 = -1;
555 static int hf_dnp3_al_aiq_b1 = -1;
556 static int hf_dnp3_al_aiq_b2 = -1;
557 static int hf_dnp3_al_aiq_b3 = -1;
558 static int hf_dnp3_al_aiq_b4 = -1;
559 static int hf_dnp3_al_aiq_b5 = -1;
560 static int hf_dnp3_al_aiq_b6 = -1;
561 static int hf_dnp3_al_aiq_b7 = -1;
562 static int hf_dnp3_al_aoq_b0 = -1;
563 static int hf_dnp3_al_aoq_b1 = -1;
564 static int hf_dnp3_al_aoq_b2 = -1;
565 static int hf_dnp3_al_aoq_b3 = -1;
566 static int hf_dnp3_al_aoq_b4 = -1;
567 static int hf_dnp3_al_aoq_b5 = -1;
568 static int hf_dnp3_al_aoq_b6 = -1;
569 static int hf_dnp3_al_aoq_b7 = -1;
570 static int hf_dnp3_al_timestamp = -1;
571 static int hf_dnp3_al_rel_timestamp = -1;
572 static int hf_dnp3_al_ana16 = -1;
573 static int hf_dnp3_al_ana32 = -1;
574 static int hf_dnp3_al_anaflt = -1;
575 static int hf_dnp3_al_anadbl = -1;
576 static int hf_dnp3_al_bit = -1;
577 static int hf_dnp3_al_2bit = -1;
578 static int hf_dnp3_al_cnt16 = -1;
579 static int hf_dnp3_al_cnt32 = -1;
580 static int hf_dnp3_al_ctrlstatus = -1;
581 static int hf_dnp3_al_anaout16 = -1;
582 static int hf_dnp3_al_anaout32 = -1;
583 static int hf_dnp3_al_anaoutflt = -1;
584 static int hf_dnp3_al_anaoutdbl = -1;
586 /***************************************************************************/
587 /* Value String Look-Ups */
588 /***************************************************************************/
589 static const value_string dnp3_ctl_func_pri_vals[] = {
590 { DL_FUNC_RESET_LINK, "Reset of Remote Link" },
591 { DL_FUNC_RESET_PROC, "Reset of User Process" },
592 { DL_FUNC_TEST_LINK, "Test Function For Link" },
593 { DL_FUNC_USER_DATA, "User Data" },
594 { DL_FUNC_UNC_DATA, "Unconfirmed User Data" },
595 { DL_FUNC_LINK_STAT, "Request Link Status" },
599 static const value_string dnp3_ctl_func_sec_vals[] = {
600 { DL_FUNC_ACK, "ACK" },
601 { DL_FUNC_NACK, "NACK" },
602 { DL_FUNC_STAT_LINK, "Status of Link" },
603 { DL_FUNC_NO_FUNC, "Link Service Not Functioning" },
604 { DL_FUNC_NOT_IMPL, "Link Service Not Used or Implemented" },
608 static const value_string dnp3_ctl_flags_pri_vals[] _U_ = {
609 { DNP3_CTL_DIR, "DIR" },
610 { DNP3_CTL_PRM, "PRM" },
611 { DNP3_CTL_FCB, "FCB" },
612 { DNP3_CTL_FCV, "FCV" },
616 static const value_string dnp3_ctl_flags_sec_vals[] _U_ = {
617 { DNP3_CTL_DIR, "DIR" },
618 { DNP3_CTL_PRM, "PRM" },
619 { DNP3_CTL_RES, "RES" },
620 { DNP3_CTL_DFC, "DFC" },
624 static const value_string dnp3_tr_flags_vals[] _U_ = {
625 { DNP3_TR_FIN, "FIN" },
626 { DNP3_TR_FIR, "FIR" },
630 static const value_string dnp3_al_flags_vals[] _U_ = {
631 { DNP3_AL_FIR, "FIR" },
632 { DNP3_AL_FIN, "FIN" },
633 { DNP3_AL_CON, "CON" },
637 /* Application Layer Function Code Values */
638 static const value_string dnp3_al_func_vals[] = {
639 { AL_FUNC_CONFIRM, "Confirm" },
640 { AL_FUNC_READ, "Read" },
641 { AL_FUNC_WRITE, "Write" },
642 { AL_FUNC_SELECT, "Select" },
643 { AL_FUNC_OPERATE, "Operate" },
644 { AL_FUNC_DIROP, "Direct Operate" },
645 { AL_FUNC_DIROPNACK, "Direct Operate No Ack" },
646 { AL_FUNC_FRZ, "Immediate Freeze" },
647 { AL_FUNC_FRZNACK, "Immediate Freeze No Ack" },
648 { AL_FUNC_FRZCLR, "Freeze and Clear" },
649 { AL_FUNC_FRZCLRNACK, "Freeze and Clear No ACK" },
650 { AL_FUNC_FRZT, "Freeze With Time" },
651 { AL_FUNC_FRZTNACK, "Freeze With Time No ACK" },
652 { AL_FUNC_COLDRST, "Cold Restart" },
653 { AL_FUNC_WARMRST, "Warm Restart" },
654 { AL_FUNC_INITDATA, "Initialize Data" },
655 { AL_FUNC_INITAPP, "Initialize Application" },
656 { AL_FUNC_STARTAPP, "Start Application" },
657 { AL_FUNC_STOPAPP, "Stop Application" },
658 { AL_FUNC_SAVECFG, "Save Configuration" },
659 { AL_FUNC_ENSPMSG, "Enable Spontaneous Messages" },
660 { AL_FUNC_DISSPMSG, "Disable Spontaneous Messages" },
661 { AL_FUNC_ASSIGNCL, "Assign Classes" },
662 { AL_FUNC_DELAYMST, "Delay Measurement" },
663 { AL_FUNC_RECCT, "Record Current Time" },
664 { AL_FUNC_OPENFILE, "Open File" },
665 { AL_FUNC_CLOSEFILE, "Close File" },
666 { AL_FUNC_DELETEFILE, "Delete File" },
667 { AL_FUNC_GETFILEINF, "Get File Info" },
668 { AL_FUNC_AUTHFILE, "Authenticate File" },
669 { AL_FUNC_ABORTFILE, "Abort File" },
670 { AL_FUNC_ACTCNF, "Activate Config" },
671 { AL_FUNC_AUTHREQ, "Authentication Request" },
672 { AL_FUNC_AUTHERR, "Authentication Error" },
673 { AL_FUNC_RESPON, "Response" },
674 { AL_FUNC_UNSOLI, "Unsolicited Response" },
675 { AL_FUNC_AUTHRESP, "Authentication Response" },
678 static value_string_ext dnp3_al_func_vals_ext = VALUE_STRING_EXT_INIT(dnp3_al_func_vals);
680 /* Application Layer Internal Indication (IIN) bit Values */
681 static const value_string dnp3_al_iin_vals[] _U_ = {
682 { AL_IIN_BMSG, "Broadcast message Rx'd" },
683 { AL_IIN_CLS1D, "Class 1 Data Available" },
684 { AL_IIN_CLS2D, "Class 2 Data Available" },
685 { AL_IIN_CLS3D, "Class 3 Data Available" },
686 { AL_IIN_TSR, "Time Sync Required from Master" },
687 { AL_IIN_DOL, "Digital Outputs in Local Mode" },
688 { AL_IIN_DT, "Device Trouble" },
689 { AL_IIN_RST, "Device Restart" },
690 { AL_IIN_OBJU, "Requested Objects Unknown" },
691 { AL_IIN_PIOOR, "Parameters Invalid or Out of Range" },
692 { AL_IIN_EBO, "Event Buffer Overflow" },
693 { AL_IIN_OAE, "Operation Already Executing" },
694 { AL_IIN_CC, "Device Configuration Corrupt" },
698 /* Application Layer Object Qualifier Index Values When Qualifier Code != 11 */
699 static const value_string dnp3_al_objq_index_vals[] = {
700 { AL_OBJQL_IDX_NI, "None" },
701 { AL_OBJQL_IDX_1O, "1-Octet Indexing" },
702 { AL_OBJQL_IDX_2O, "2-Octet Indexing" },
703 { AL_OBJQL_IDX_4O, "4-Octet Indexing" },
704 { AL_OBJQL_IDX_1OS, "1-Octet Object Size" },
705 { AL_OBJQL_IDX_2OS, "2-Octet Object Size" },
706 { AL_OBJQL_IDX_4OS, "4-Octet Object Size" },
709 static value_string_ext dnp3_al_objq_index_vals_ext = VALUE_STRING_EXT_INIT(dnp3_al_objq_index_vals);
711 /* Application Layer Object Qualifier Code Values */
712 static const value_string dnp3_al_objq_code_vals[] = {
713 { AL_OBJQL_CODE_SSI8, "8-bit Start and Stop Indices" },
714 { AL_OBJQL_CODE_SSI16, "16-bit Start and Stop Indices" },
715 { AL_OBJQL_CODE_SSI32, "32-bit Start and Stop Indices" },
716 { AL_OBJQL_CODE_AA8, "8-bit Absolute Address in Range Field" },
717 { AL_OBJQL_CODE_AA16, "16-bit Absolute Address in Range Field" },
718 { AL_OBJQL_CODE_AA32, "32-bit Absolute Address in Range Field" },
719 { AL_OBJQL_CODE_R0, "No Range Field" },
720 { AL_OBJQL_CODE_SF8, "8-bit Single Field Quantity" },
721 { AL_OBJQL_CODE_SF16, "16-bit Single Field Quantity" },
722 { AL_OBJQL_CODE_SF32, "32-bit Single Field Quantity" },
724 { AL_OBJQL_CODE_FF, "Free-format Qualifier" },
727 static value_string_ext dnp3_al_objq_code_vals_ext = VALUE_STRING_EXT_INIT(dnp3_al_objq_code_vals);
729 /* Application Layer Data Object Values */
730 static const value_string dnp3_al_obj_vals[] = {
731 { AL_OBJ_BI_ALL, "Binary Input Default Variation (Obj:01, Var:Default)" },
732 { AL_OBJ_BI_1BIT, "Single-Bit Binary Input (Obj:01, Var:01)" },
733 { AL_OBJ_BI_STAT, "Binary Input With Status (Obj:01, Var:02)" },
734 { AL_OBJ_BIC_ALL, "Binary Input Change Default Variation (Obj:02, Var:Default)" },
735 { AL_OBJ_BIC_NOTIME, "Binary Input Change Without Time (Obj:02, Var:01)" },
736 { AL_OBJ_BIC_TIME, "Binary Input Change With Time (Obj:02, Var:02)" },
737 { AL_OBJ_BIC_RTIME, "Binary Input Change With Relative Time (Obj:02, Var:03)" },
738 { AL_OBJ_2BI_ALL, "Double-bit Input Default Variation (Obj:03, Var:Default)" },
739 { AL_OBJ_2BI_NF, "Double-bit Input No Flags (Obj:03, Var:01)" },
740 { AL_OBJ_2BI_STAT, "Double-bit Input With Status (Obj:03, Var:02)" },
741 { AL_OBJ_2BIC_NOTIME, "Double-bit Input Change Without Time (Obj:04, Var:01)" },
742 { AL_OBJ_2BIC_TIME, "Double-bit Input Change With Time (Obj:04, Var:02)" },
743 { AL_OBJ_2BIC_RTIME, "Double-bit Input Change With Relative Time (Obj:04, Var:03)" },
744 { AL_OBJ_BO_ALL, "Binary Output Default Variation (Obj:10, Var:Default)" },
745 { AL_OBJ_BO, "Binary Output (Obj:10, Var:01)" },
746 { AL_OBJ_BO_STAT, "Binary Output Status (Obj:10, Var:02)" },
747 { AL_OBJ_CTLOP_BLK, "Control Relay Output Block (Obj:12, Var:01)" },
748 { AL_OBJ_CTR_ALL, "Binary Counter Default Variation (Obj:20, Var:Default)" },
749 { AL_OBJ_CTR_32, "32-Bit Binary Counter (Obj:20, Var:01)" },
750 { AL_OBJ_CTR_16, "16-Bit Binary Counter (Obj:20, Var:02)" },
751 { AL_OBJ_DCTR_32, "32-Bit Binary Delta Counter (Obj:20, Var:03)" },
752 { AL_OBJ_DCTR_16, "16-Bit Binary Delta Counter (Obj:20, Var:04)" },
753 { AL_OBJ_CTR_32NF, "32-Bit Binary Counter Without Flag (Obj:20, Var:05)" },
754 { AL_OBJ_CTR_16NF, "16-Bit Binary Counter Without Flag (Obj:20, Var:06)" },
755 { AL_OBJ_DCTR_32NF, "32-Bit Binary Delta Counter Without Flag (Obj:20, Var:07)" },
756 { AL_OBJ_DCTR_16NF, "16-Bit Binary Delta Counter Without Flag (Obj:20, Var:08)" },
757 { AL_OBJ_FCTR_ALL, "Frozen Binary Counter Default Variation (Obj:21, Var:Default)" },
758 { AL_OBJ_FCTR_32, "32-Bit Frozen Binary Counter (Obj:21, Var:01)" },
759 { AL_OBJ_FCTR_16, "16-Bit Frozen Binary Counter (Obj:21, Var:02)" },
760 { AL_OBJ_FDCTR_32, "32-Bit Frozen Binary Delta Counter (Obj:21, Var:03)" },
761 { AL_OBJ_FDCTR_16, "16-Bit Frozen Binary Delta Counter (Obj:21, Var:04)" },
762 { AL_OBJ_FCTR_32T, "32-Bit Frozen Binary Counter (Obj:21, Var:01)" },
763 { AL_OBJ_FCTR_16T, "16-Bit Frozen Binary Counter (Obj:21, Var:02)" },
764 { AL_OBJ_FDCTR_32T, "32-Bit Frozen Binary Delta Counter (Obj:21, Var:03)" },
765 { AL_OBJ_FDCTR_16T, "16-Bit Frozen Binary Delta Counter (Obj:21, Var:04)" },
766 { AL_OBJ_FCTR_32NF, "32-Bit Frozen Binary Counter Without Flag (Obj:21, Var:05)" },
767 { AL_OBJ_FCTR_16NF, "16-Bit Frozen Binary Counter Without Flag (Obj:21, Var:06)" },
768 { AL_OBJ_FDCTR_32NF, "32-Bit Frozen Binary Delta Counter Without Flag (Obj:21, Var:07)" },
769 { AL_OBJ_FDCTR_16NF, "16-Bit Frozen Binary Delta Counter Without Flag (Obj:21, Var:08)" },
770 { AL_OBJ_CTRC_ALL, "Binary Counter Change Default Variation (Obj:22, Var:Default)" },
771 { AL_OBJ_CTRC_32, "32-Bit Counter Change Event w/o Time (Obj:22, Var:01)" },
772 { AL_OBJ_CTRC_16, "16-Bit Counter Change Event w/o Time (Obj:22, Var:02)" },
773 { AL_OBJ_DCTRC_32, "32-Bit Delta Counter Change Event w/o Time (Obj:22, Var:03)" },
774 { AL_OBJ_DCTRC_16, "16-Bit Delta Counter Change Event w/o Time (Obj:22, Var:04)" },
775 { AL_OBJ_CTRC_32T, "32-Bit Counter Change Event with Time (Obj:22, Var:05)" },
776 { AL_OBJ_CTRC_16T, "16-Bit Counter Change Event with Time (Obj:22, Var:06)" },
777 { AL_OBJ_DCTRC_32T, "32-Bit Delta Counter Change Event with Time (Obj:22, Var:07)" },
778 { AL_OBJ_DCTRC_16T, "16-Bit Delta Counter Change Event with Time (Obj:22, Var:08)" },
779 { AL_OBJ_FCTRC_ALL, "Frozen Binary Counter Change Default Variation (Obj:23, Var:Default)" },
780 { AL_OBJ_FCTRC_32, "32-Bit Frozen Counter Change Event w/o Time (Obj:23, Var:01)" },
781 { AL_OBJ_FCTRC_16, "16-Bit Frozen Counter Change Event w/o Time (Obj:23, Var:02)" },
782 { AL_OBJ_FDCTRC_32, "32-Bit Frozen Delta Counter Change Event w/o Time (Obj:23, Var:03)" },
783 { AL_OBJ_FDCTRC_16, "16-Bit Frozen Delta Counter Change Event w/o Time (Obj:23, Var:04)" },
784 { AL_OBJ_FCTRC_32T, "32-Bit Frozen Counter Change Event with Time (Obj:23, Var:05)" },
785 { AL_OBJ_FCTRC_16T, "16-Bit Frozen Counter Change Event with Time (Obj:23, Var:06)" },
786 { AL_OBJ_FDCTRC_32T, "32-Bit Frozen Delta Counter Change Event with Time (Obj:23, Var:07)" },
787 { AL_OBJ_FDCTRC_16T, "16-Bit Frozen Delta Counter Change Event with Time (Obj:23, Var:08)" },
788 { AL_OBJ_AI_ALL, "Analog Input Default Variation (Obj:30, Var:Default)" },
789 { AL_OBJ_AI_32, "32-Bit Analog Input (Obj:30, Var:01)" },
790 { AL_OBJ_AI_16, "16-Bit Analog Input (Obj:30, Var:02)" },
791 { AL_OBJ_AI_32NF, "32-Bit Analog Input Without Flag (Obj:30, Var:03)" },
792 { AL_OBJ_AI_16NF, "16-Bit Analog Input Without Flag (Obj:30, Var:04)" },
793 { AL_OBJ_AI_FLT, "32-Bit Floating Point Input (Obj:30, Var:05)" },
794 { AL_OBJ_AI_DBL, "64-Bit Floating Point Input (Obj:30, Var:06)" },
795 { AL_OBJ_AIF_FLT, "32-Bit Frozen Floating Point Input (Obj:31, Var:07)" },
796 { AL_OBJ_AIF_DBL, "64-Bit Frozen Floating Point Input (Obj:31, Var:08)" },
797 { AL_OBJ_AIC_ALL, "Analog Input Change Default Variation (Obj:32, Var:Default)" },
798 { AL_OBJ_AIC_32NT, "32-Bit Analog Change Event w/o Time (Obj:32, Var:01)" },
799 { AL_OBJ_AIC_16NT, "16-Bit Analog Change Event w/o Time (Obj:32, Var:02)" },
800 { AL_OBJ_AIC_32T, "32-Bit Analog Change Event with Time (Obj:32, Var:03)" },
801 { AL_OBJ_AIC_16T, "16-Bit Analog Change Event with Time (Obj:32, Var:04)" },
802 { AL_OBJ_AIC_FLTNT, "32-Bit Floating Point Change Event w/o Time (Obj:32, Var:05)" },
803 { AL_OBJ_AIC_DBLNT, "64-Bit Floating Point Change Event w/o Time (Obj:32, Var:06)" },
804 { AL_OBJ_AIC_FLTT, "32-Bit Floating Point Change Event w/ Time (Obj:32, Var:07)" },
805 { AL_OBJ_AIC_DBLT, "64-Bit Floating Point Change Event w/ Time (Obj:32, Var:08)" },
806 { AL_OBJ_AIFC_FLTNT, "32-Bit Floating Point Frozen Change Event w/o Time (Obj:33, Var:05)" },
807 { AL_OBJ_AIFC_DBLNT, "64-Bit Floating Point Frozen Change Event w/o Time (Obj:33, Var:06)" },
808 { AL_OBJ_AIFC_FLTT, "32-Bit Floating Point Frozen Change Event w/ Time (Obj:33, Var:07)" },
809 { AL_OBJ_AIFC_DBLT, "64-Bit Floating Point Frozen Change Event w/ Time (Obj:33, Var:08)" },
810 { AL_OBJ_AO_ALL, "Analog Output Default Variation (Obj:40, Var:Default)" },
811 { AL_OBJ_AO_32, "32-Bit Analog Output Status (Obj:40, Var:01)" },
812 { AL_OBJ_AO_16, "16-Bit Analog Output Status (Obj:40, Var:02)" },
813 { AL_OBJ_AO_FLT, "32-Bit Floating Point Output Status (Obj:40, Var:03)" },
814 { AL_OBJ_AO_DBL, "64-Bit Floating Point Output Status (Obj:40, Var:04)" },
815 { AL_OBJ_AO_32OPB, "32-Bit Analog Output Block (Obj:41, Var:01)" },
816 { AL_OBJ_AO_16OPB, "16-Bit Analog Output Block (Obj:41, Var:02)" },
817 { AL_OBJ_AO_FLTOPB, "32-Bit Floating Point Output Block (Obj:41, Var:03)" },
818 { AL_OBJ_AO_DBLOPB, "64-Bit Floating Point Output Block (Obj:41, Var:04)" },
819 { AL_OBJ_TD_ALL, "Time and Date Default Variations (Obj:50, Var:Default)" },
820 { AL_OBJ_TD, "Time and Date (Obj:50, Var:01)" },
821 { AL_OBJ_TDI, "Time and Date w/Interval (Obj:50, Var:02)" },
822 { AL_OBJ_TDR, "Last Recorded Time and Date (Obj:50, Var:03)" },
823 { AL_OBJ_TDCTO, "Time and Date CTO (Obj:51, Var:01)" },
824 { AL_OBJ_TDELAYF, "Time Delay - Fine (Obj:52, Var:02)" },
825 { AL_OBJ_CLASS0, "Class 0 Data (Obj:60, Var:01)" },
826 { AL_OBJ_CLASS1, "Class 1 Data (Obj:60, Var:02)" },
827 { AL_OBJ_CLASS2, "Class 2 Data (Obj:60, Var:03)" },
828 { AL_OBJ_CLASS3, "Class 3 Data (Obj:60, Var:04)" },
829 { AL_OBJ_IIN, "Internal Indications (Obj:80, Var:01)" },
830 { AL_OBJ_OCT, "Octet String (Obj:110)" },
833 static value_string_ext dnp3_al_obj_vals_ext = VALUE_STRING_EXT_INIT(dnp3_al_obj_vals);
835 /* Application Layer Control Code 'Code' Values */
836 static const value_string dnp3_al_ctlc_code_vals[] = {
837 { AL_OBJCTLC_CODE0, "NUL Operation" },
838 { AL_OBJCTLC_CODE1, "Pulse On" },
839 { AL_OBJCTLC_CODE2, "Pulse Off" },
840 { AL_OBJCTLC_CODE3, "Latch On" },
841 { AL_OBJCTLC_CODE4, "Latch Off" },
845 /* Application Layer Control Code 'Misc' Values */
846 static const value_string dnp3_al_ctlc_misc_vals[] = {
847 { AL_OBJCTLC_QUEUE, "Queue" },
848 { AL_OBJCTLC_CLEAR, "Clear" },
852 /* Application Layer Control Code 'Trip/Close' Values */
853 static const value_string dnp3_al_ctlc_tc_vals[] = {
854 { AL_OBJCTLC_TC0, "NUL" },
855 { AL_OBJCTLC_TC1, "Close" },
856 { AL_OBJCTLC_TC2, "Trip" },
860 /* Application Layer Control Status Values */
861 static const value_string dnp3_al_ctl_status_vals[] = {
862 { AL_OBJCTL_STAT0, "Req. Accepted/Init/Queued" },
863 { AL_OBJCTL_STAT1, "Req. Not Accepted; Arm-Timer Expired" },
864 { AL_OBJCTL_STAT2, "Req. Not Accepted; No 'SELECT' Received" },
865 { AL_OBJCTL_STAT3, "Req. Not Accepted; Format Err. in Ctl Req." },
866 { AL_OBJCTL_STAT4, "Ctl Oper. Not Supported For This Point" },
867 { AL_OBJCTL_STAT5, "Req. Not Accepted; Ctrl Queue Full/Point Active" },
868 { AL_OBJCTL_STAT6, "Req. Not Accepted; Ctrl Hardware Problems" },
869 { AL_OBJCTL_STAT7, "Req. Not Accepted; Local/Remote switch in Local" },
870 { AL_OBJCTL_STAT8, "Req. Not Accepted; Too many operations" },
871 { AL_OBJCTL_STAT9, "Req. Not Accepted; Insufficient authorization" },
872 { AL_OBJCTL_STAT10, "Req. Not Accepted; Local automation proc active" },
875 static value_string_ext dnp3_al_ctl_status_vals_ext = VALUE_STRING_EXT_INIT(dnp3_al_ctl_status_vals);
877 /* Application Layer Binary Input Quality Flag Values */
878 static const value_string dnp3_al_biflag_vals[] _U_ = {
879 { AL_OBJ_BI_FLAG0, "Online" },
880 { AL_OBJ_BI_FLAG1, "Restart" },
881 { AL_OBJ_BI_FLAG2, "Comm Fail" },
882 { AL_OBJ_BI_FLAG3, "Remote Forced" },
883 { AL_OBJ_BI_FLAG4, "Locally Forced" },
884 { AL_OBJ_BI_FLAG5, "Chatter Filter" },
888 /* Application Layer Counter Quality Flag Values */
889 static const value_string dnp3_al_ctrflag_vals[] _U_ = {
890 { AL_OBJ_CTR_FLAG0, "Online" },
891 { AL_OBJ_CTR_FLAG1, "Restart" },
892 { AL_OBJ_CTR_FLAG2, "Comm Fail" },
893 { AL_OBJ_CTR_FLAG3, "Remote Forced" },
894 { AL_OBJ_CTR_FLAG4, "Locally Forced" },
895 { AL_OBJ_CTR_FLAG5, "Roll-Over" },
896 { AL_OBJ_CTR_FLAG6, "Discontinuity" },
900 /* Application Layer Analog Input Quality Flag Values */
901 static const value_string dnp3_al_aiflag_vals[] _U_ = {
902 { AL_OBJ_AI_FLAG0, "Online" },
903 { AL_OBJ_AI_FLAG1, "Restart" },
904 { AL_OBJ_AI_FLAG2, "Comm Fail" },
905 { AL_OBJ_AI_FLAG3, "Remote Forced" },
906 { AL_OBJ_AI_FLAG4, "Locally Forced" },
907 { AL_OBJ_AI_FLAG5, "Over-Range" },
908 { AL_OBJ_AI_FLAG6, "Ref. Error" },
912 /* Initialize the subtree pointers */
913 static gint ett_dnp3 = -1;
914 static gint ett_dnp3_dl = -1;
915 static gint ett_dnp3_dl_ctl = -1;
916 static gint ett_dnp3_tr_ctl = -1;
917 static gint ett_dnp3_al_data = -1;
918 static gint ett_dnp3_al = -1;
919 static gint ett_dnp3_al_ctl = -1;
921 /* Added for Application Layer Decoding */
922 static gint ett_dnp3_al_iin = -1;
923 static gint ett_dnp3_al_obj = -1;
924 static gint ett_dnp3_al_obj_qualifier = -1;
925 static gint ett_dnp3_al_obj_range = -1;
926 static gint ett_dnp3_al_objdet = -1;
927 static gint ett_dnp3_al_obj_quality = -1;
928 static gint ett_dnp3_al_obj_point = -1;
930 /* Tables for reassembly of fragments. */
931 static GHashTable *al_fragment_table = NULL;
932 static GHashTable *al_reassembled_table = NULL;
934 /* ************************************************************************* */
935 /* Header values for reassembly */
936 /* ************************************************************************* */
937 static int hf_dnp3_fragment = -1;
938 static int hf_dnp3_fragments = -1;
939 static int hf_dnp3_fragment_overlap = -1;
940 static int hf_dnp3_fragment_overlap_conflict = -1;
941 static int hf_dnp3_fragment_multiple_tails = -1;
942 static int hf_dnp3_fragment_too_long_fragment = -1;
943 static int hf_dnp3_fragment_error = -1;
944 static int hf_dnp3_fragment_reassembled_in = -1;
945 static int hf_dnp3_fragment_reassembled_length = -1;
946 static gint ett_dnp3_fragment = -1;
947 static gint ett_dnp3_fragments = -1;
949 static const fragment_items dnp3_frag_items = {
954 &hf_dnp3_fragment_overlap,
955 &hf_dnp3_fragment_overlap_conflict,
956 &hf_dnp3_fragment_multiple_tails,
957 &hf_dnp3_fragment_too_long_fragment,
958 &hf_dnp3_fragment_error,
959 &hf_dnp3_fragment_reassembled_in,
960 &hf_dnp3_fragment_reassembled_length,
964 /* Conversation stuff, used for tracking application message fragments */
965 /* the number of entries in the memory chunk array */
966 #define dnp3_conv_init_count 50
968 /* Conversation structure */
970 guint conv_seq_number;
973 /* The conversation sequence number */
974 static guint seq_number = 0;
976 /* desegmentation of DNP3 over TCP */
977 static gboolean dnp3_desegment = TRUE;
979 /* Enum for different quality type fields */
988 /*****************************************************************/
990 /* CRC LOOKUP TABLE */
991 /* ================ */
992 /* The following CRC lookup table was generated automagically */
993 /* by the Rocksoft^tm Model CRC Algorithm Table Generation */
994 /* Program V1.0 using the following model parameters: */
996 /* Width : 2 bytes. */
998 /* Reverse : TRUE. */
1000 /* For more information on the Rocksoft^tm Model CRC Algorithm, */
1001 /* see the document titled "A Painless Guide to CRC Error */
1002 /* Detection Algorithms" by Ross Williams */
1003 /* (ross@guest.adelaide.edu.au.). This document is likely to be */
1004 /* in the FTP archive "ftp.adelaide.edu.au/pub/rocksoft". */
1006 /*****************************************************************/
1008 static guint16 crctable[256] =
1010 0x0000, 0x365E, 0x6CBC, 0x5AE2, 0xD978, 0xEF26, 0xB5C4, 0x839A,
1011 0xFF89, 0xC9D7, 0x9335, 0xA56B, 0x26F1, 0x10AF, 0x4A4D, 0x7C13,
1012 0xB26B, 0x8435, 0xDED7, 0xE889, 0x6B13, 0x5D4D, 0x07AF, 0x31F1,
1013 0x4DE2, 0x7BBC, 0x215E, 0x1700, 0x949A, 0xA2C4, 0xF826, 0xCE78,
1014 0x29AF, 0x1FF1, 0x4513, 0x734D, 0xF0D7, 0xC689, 0x9C6B, 0xAA35,
1015 0xD626, 0xE078, 0xBA9A, 0x8CC4, 0x0F5E, 0x3900, 0x63E2, 0x55BC,
1016 0x9BC4, 0xAD9A, 0xF778, 0xC126, 0x42BC, 0x74E2, 0x2E00, 0x185E,
1017 0x644D, 0x5213, 0x08F1, 0x3EAF, 0xBD35, 0x8B6B, 0xD189, 0xE7D7,
1018 0x535E, 0x6500, 0x3FE2, 0x09BC, 0x8A26, 0xBC78, 0xE69A, 0xD0C4,
1019 0xACD7, 0x9A89, 0xC06B, 0xF635, 0x75AF, 0x43F1, 0x1913, 0x2F4D,
1020 0xE135, 0xD76B, 0x8D89, 0xBBD7, 0x384D, 0x0E13, 0x54F1, 0x62AF,
1021 0x1EBC, 0x28E2, 0x7200, 0x445E, 0xC7C4, 0xF19A, 0xAB78, 0x9D26,
1022 0x7AF1, 0x4CAF, 0x164D, 0x2013, 0xA389, 0x95D7, 0xCF35, 0xF96B,
1023 0x8578, 0xB326, 0xE9C4, 0xDF9A, 0x5C00, 0x6A5E, 0x30BC, 0x06E2,
1024 0xC89A, 0xFEC4, 0xA426, 0x9278, 0x11E2, 0x27BC, 0x7D5E, 0x4B00,
1025 0x3713, 0x014D, 0x5BAF, 0x6DF1, 0xEE6B, 0xD835, 0x82D7, 0xB489,
1026 0xA6BC, 0x90E2, 0xCA00, 0xFC5E, 0x7FC4, 0x499A, 0x1378, 0x2526,
1027 0x5935, 0x6F6B, 0x3589, 0x03D7, 0x804D, 0xB613, 0xECF1, 0xDAAF,
1028 0x14D7, 0x2289, 0x786B, 0x4E35, 0xCDAF, 0xFBF1, 0xA113, 0x974D,
1029 0xEB5E, 0xDD00, 0x87E2, 0xB1BC, 0x3226, 0x0478, 0x5E9A, 0x68C4,
1030 0x8F13, 0xB94D, 0xE3AF, 0xD5F1, 0x566B, 0x6035, 0x3AD7, 0x0C89,
1031 0x709A, 0x46C4, 0x1C26, 0x2A78, 0xA9E2, 0x9FBC, 0xC55E, 0xF300,
1032 0x3D78, 0x0B26, 0x51C4, 0x679A, 0xE400, 0xD25E, 0x88BC, 0xBEE2,
1033 0xC2F1, 0xF4AF, 0xAE4D, 0x9813, 0x1B89, 0x2DD7, 0x7735, 0x416B,
1034 0xF5E2, 0xC3BC, 0x995E, 0xAF00, 0x2C9A, 0x1AC4, 0x4026, 0x7678,
1035 0x0A6B, 0x3C35, 0x66D7, 0x5089, 0xD313, 0xE54D, 0xBFAF, 0x89F1,
1036 0x4789, 0x71D7, 0x2B35, 0x1D6B, 0x9EF1, 0xA8AF, 0xF24D, 0xC413,
1037 0xB800, 0x8E5E, 0xD4BC, 0xE2E2, 0x6178, 0x5726, 0x0DC4, 0x3B9A,
1038 0xDC4D, 0xEA13, 0xB0F1, 0x86AF, 0x0535, 0x336B, 0x6989, 0x5FD7,
1039 0x23C4, 0x159A, 0x4F78, 0x7926, 0xFABC, 0xCCE2, 0x9600, 0xA05E,
1040 0x6E26, 0x5878, 0x029A, 0x34C4, 0xB75E, 0x8100, 0xDBE2, 0xEDBC,
1041 0x91AF, 0xA7F1, 0xFD13, 0xCB4D, 0x48D7, 0x7E89, 0x246B, 0x1235
1044 /*****************************************************************/
1045 /* End of CRC Lookup Table */
1046 /*****************************************************************/
1048 /* calculates crc given a buffer of characters and a length of buffer */
1050 calculateCRC(const void *buf, guint len) {
1052 const guint8 *p = (const guint8 *)buf;
1054 crc = crctable[(crc ^ *p++) & 0xff] ^ (crc >> 8);
1058 /*****************************************************************/
1059 /* Adds text to item, with trailing "," if required */
1060 /*****************************************************************/
1062 add_item_text(proto_item *item, const gchar *text, gboolean comma_needed)
1065 proto_item_append_text(item, ", ");
1067 proto_item_append_text(item, "%s", text);
1071 /*****************************************************************/
1072 /* Application Layer Process Internal Indications (IIN) */
1073 /*****************************************************************/
1075 dnp3_al_process_iin(tvbuff_t *tvb, int offset, proto_tree *al_tree)
1080 proto_tree *iin_tree = NULL;
1081 gboolean comma_needed = FALSE;
1083 al_iin = tvb_get_ntohs(tvb, offset);
1085 tiin = proto_tree_add_uint_format(al_tree, hf_dnp3_al_iin, tvb, offset, 2, al_iin,
1086 "Internal Indications: ");
1087 if (al_iin & AL_IIN_RST) comma_needed = add_item_text(tiin, "Device Restart", comma_needed);
1088 if (al_iin & AL_IIN_DOL) comma_needed = add_item_text(tiin, "Digital Outputs in Local", comma_needed);
1089 if (al_iin & AL_IIN_DT) comma_needed = add_item_text(tiin, "Device Trouble", comma_needed);
1090 if (al_iin & AL_IIN_TSR) comma_needed = add_item_text(tiin, "Time Sync Required", comma_needed);
1091 if (al_iin & AL_IIN_CLS3D) comma_needed = add_item_text(tiin, "Class 3 Data Available", comma_needed);
1092 if (al_iin & AL_IIN_CLS2D) comma_needed = add_item_text(tiin, "Class 2 Data Available", comma_needed);
1093 if (al_iin & AL_IIN_CLS1D) comma_needed = add_item_text(tiin, "Class 1 Data Available", comma_needed);
1094 if (al_iin & AL_IIN_BMSG) comma_needed = add_item_text(tiin, "Broadcast Message Rx'd", comma_needed);
1095 if (al_iin & AL_IIN_CC) comma_needed = add_item_text(tiin, "Device Configuration Corrupt", comma_needed);
1096 if (al_iin & AL_IIN_OAE) comma_needed = add_item_text(tiin, "Operation Already Executing", comma_needed);
1097 if (al_iin & AL_IIN_EBO) comma_needed = add_item_text(tiin, "Event Buffer Overflow", comma_needed);
1098 if (al_iin & AL_IIN_PIOOR) comma_needed = add_item_text(tiin, "Parameters Invalid or Out of Range", comma_needed);
1099 if (al_iin & AL_IIN_OBJU) comma_needed = add_item_text(tiin, "Requested Objects Unknown", comma_needed);
1100 proto_item_append_text(tiin, " (0x%04x)", al_iin);
1102 iin_tree = proto_item_add_subtree(tiin, ett_dnp3_al_iin);
1103 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_rst, tvb, offset, 2, FALSE);
1104 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_dt, tvb, offset, 2, FALSE);
1105 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_dol, tvb, offset, 2, FALSE);
1106 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_tsr, tvb, offset, 2, FALSE);
1107 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_cls3d, tvb, offset, 2, FALSE);
1108 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_cls2d, tvb, offset, 2, FALSE);
1109 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_cls1d, tvb, offset, 2, FALSE);
1110 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_bmsg, tvb, offset, 2, FALSE);
1111 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_cc, tvb, offset, 2, FALSE);
1112 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_oae, tvb, offset, 2, FALSE);
1113 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_ebo, tvb, offset, 2, FALSE);
1114 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_pioor, tvb, offset, 2, FALSE);
1115 proto_tree_add_item(iin_tree, hf_dnp3_al_iin_obju, tvb, offset, 2, FALSE);
1118 /*****************************************************************/
1119 /* Function to determine Application Layer Object Index size and */
1120 /* Point address. */
1121 /*****************************************************************/
1123 dnp3_al_obj_procindex(tvbuff_t *tvb, int offset, guint8 al_objq_index, guint32 *al_ptaddr, proto_tree *item_tree)
1126 proto_item *index_item;
1128 switch (al_objq_index)
1130 case AL_OBJQL_IDX_NI: /* No Index */
1132 index_item = proto_tree_add_text(item_tree, tvb, offset, 0, "Point Index: %u", *al_ptaddr);
1133 PROTO_ITEM_SET_GENERATED(index_item);
1135 case AL_OBJQL_IDX_1O:
1136 *al_ptaddr = tvb_get_guint8(tvb, offset);
1137 proto_tree_add_item(item_tree, hf_dnp3_al_index8, tvb, offset, 1, TRUE);
1140 case AL_OBJQL_IDX_2O:
1141 *al_ptaddr = tvb_get_letohs(tvb, offset);
1142 proto_tree_add_item(item_tree, hf_dnp3_al_index16, tvb, offset, 2, TRUE);
1145 case AL_OBJQL_IDX_4O:
1146 *al_ptaddr = tvb_get_letohl(tvb, offset);
1147 proto_tree_add_item(item_tree, hf_dnp3_al_index32, tvb, offset, 4, TRUE);
1154 /*****************************************************************/
1155 /* Function to add the same string to two separate tree items */
1156 /*****************************************************************/
1158 dnp3_append_2item_text(proto_item *item1, proto_item *item2, const gchar *text)
1160 proto_item_append_text(item1, "%s", text);
1161 proto_item_append_text(item2, "%s", text);
1164 /*****************************************************************/
1165 /* Function to Determine Application Layer Point Quality Flags & */
1166 /* add Point Quality Flag Sub-Tree */
1167 /*****************************************************************/
1169 dnp3_al_obj_quality(tvbuff_t *tvb, int offset, guint8 al_ptflags, proto_tree *point_tree, proto_item *point_item, enum QUALITY_TYPE type)
1172 proto_tree *quality_tree = NULL;
1173 proto_item *quality_item;
1174 int hf0 = 0, hf1 = 0, hf2 = 0, hf3 = 0, hf4 = 0, hf5 = 0, hf6 = 0, hf7 = 0;
1177 proto_item_append_text(point_item, " (Quality: ");
1178 quality_item = proto_tree_add_text(point_tree, tvb, offset, 1, "Quality: ");
1179 quality_tree = proto_item_add_subtree(quality_item, ett_dnp3_al_obj_quality);
1181 if (al_ptflags & AL_OBJ_BI_FLAG0) {
1182 dnp3_append_2item_text(point_item, quality_item, "Online");
1185 dnp3_append_2item_text(point_item, quality_item, "Offline");
1187 if (al_ptflags & AL_OBJ_BI_FLAG1) dnp3_append_2item_text(point_item, quality_item, ", Restart");
1188 if (al_ptflags & AL_OBJ_BI_FLAG2) dnp3_append_2item_text(point_item, quality_item, ", Comm Fail");
1189 if (al_ptflags & AL_OBJ_BI_FLAG3) dnp3_append_2item_text(point_item, quality_item, ", Remote Force");
1190 if (al_ptflags & AL_OBJ_BI_FLAG4) dnp3_append_2item_text(point_item, quality_item, ", Local Force");
1193 case BIN_IN: /* Binary Input Quality flags */
1194 if (al_ptflags & AL_OBJ_BI_FLAG5) dnp3_append_2item_text(point_item, quality_item, ", Chatter Filter");
1196 hf0 = hf_dnp3_al_biq_b0;
1197 hf1 = hf_dnp3_al_biq_b1;
1198 hf2 = hf_dnp3_al_biq_b2;
1199 hf3 = hf_dnp3_al_biq_b3;
1200 hf4 = hf_dnp3_al_biq_b4;
1201 hf5 = hf_dnp3_al_biq_b5;
1202 hf6 = hf_dnp3_al_biq_b6;
1203 hf7 = hf_dnp3_al_biq_b7;
1206 case BIN_OUT: /* Binary Output Quality flags */
1207 hf0 = hf_dnp3_al_boq_b0;
1208 hf1 = hf_dnp3_al_boq_b1;
1209 hf2 = hf_dnp3_al_boq_b2;
1210 hf3 = hf_dnp3_al_boq_b3;
1211 hf4 = hf_dnp3_al_boq_b4;
1212 hf5 = hf_dnp3_al_boq_b5;
1213 hf6 = hf_dnp3_al_boq_b6;
1214 hf7 = hf_dnp3_al_boq_b7;
1217 case ANA_IN: /* Analog Input Quality flags */
1218 if (al_ptflags & AL_OBJ_AI_FLAG5) dnp3_append_2item_text(point_item, quality_item, ", Over-Range");
1219 if (al_ptflags & AL_OBJ_AI_FLAG6) dnp3_append_2item_text(point_item, quality_item, ", Reference Check");
1221 hf0 = hf_dnp3_al_aiq_b0;
1222 hf1 = hf_dnp3_al_aiq_b1;
1223 hf2 = hf_dnp3_al_aiq_b2;
1224 hf3 = hf_dnp3_al_aiq_b3;
1225 hf4 = hf_dnp3_al_aiq_b4;
1226 hf5 = hf_dnp3_al_aiq_b5;
1227 hf6 = hf_dnp3_al_aiq_b6;
1228 hf7 = hf_dnp3_al_aiq_b7;
1231 case ANA_OUT: /* Analog Output Quality flags */
1232 hf0 = hf_dnp3_al_aoq_b0;
1233 hf1 = hf_dnp3_al_aoq_b1;
1234 hf2 = hf_dnp3_al_aoq_b2;
1235 hf3 = hf_dnp3_al_aoq_b3;
1236 hf4 = hf_dnp3_al_aoq_b4;
1237 hf5 = hf_dnp3_al_aoq_b5;
1238 hf6 = hf_dnp3_al_aoq_b6;
1239 hf7 = hf_dnp3_al_aoq_b7;
1242 case COUNTER: /* Counter Quality flags */
1243 if (al_ptflags & AL_OBJ_CTR_FLAG5) dnp3_append_2item_text(point_item, quality_item, ", Roll-over");
1244 if (al_ptflags & AL_OBJ_CTR_FLAG6) dnp3_append_2item_text(point_item, quality_item, ", Discontinuity");
1246 hf0 = hf_dnp3_al_ctrq_b0;
1247 hf1 = hf_dnp3_al_ctrq_b1;
1248 hf2 = hf_dnp3_al_ctrq_b2;
1249 hf3 = hf_dnp3_al_ctrq_b3;
1250 hf4 = hf_dnp3_al_ctrq_b4;
1251 hf5 = hf_dnp3_al_ctrq_b5;
1252 hf6 = hf_dnp3_al_ctrq_b6;
1253 hf7 = hf_dnp3_al_ctrq_b7;
1257 if (quality_tree != NULL) {
1258 proto_tree_add_item(quality_tree, hf7, tvb, offset, 1, TRUE);
1259 proto_tree_add_item(quality_tree, hf6, tvb, offset, 1, TRUE);
1260 proto_tree_add_item(quality_tree, hf5, tvb, offset, 1, TRUE);
1261 proto_tree_add_item(quality_tree, hf4, tvb, offset, 1, TRUE);
1262 proto_tree_add_item(quality_tree, hf3, tvb, offset, 1, TRUE);
1263 proto_tree_add_item(quality_tree, hf2, tvb, offset, 1, TRUE);
1264 proto_tree_add_item(quality_tree, hf1, tvb, offset, 1, TRUE);
1265 proto_tree_add_item(quality_tree, hf0, tvb, offset, 1, TRUE);
1267 proto_item_append_text(point_item, ")");
1270 /**********************************************************************/
1271 /* Function to convert DNP3 timestamp to nstime_t value */
1272 /**********************************************************************/
1273 /* 48-bit Time Format */
1274 /* MSB FF EE DD CC BB AA LSB */
1275 /* ffffffff eeeeeeee dddddddd cccccccc bbbbbbbb aaaaaaaa */
1276 /* 47 40 39 32 31 24 23 16 15 8 7 0 */
1278 /* Value is ms since 00:00 on 1/1/1970 */
1279 /**********************************************************************/
1281 dnp3_al_get_timestamp(nstime_t *timestamp, tvbuff_t *tvb, int data_pos)
1287 lo = tvb_get_letohs(tvb, data_pos);
1288 hi = tvb_get_letohl(tvb, data_pos + 2);
1290 time_ms = (guint64)hi * 0x10000 + lo;
1292 timestamp->secs = (long)(time_ms / 1000);
1293 timestamp->nsecs = (long)(time_ms % 1000) * 1000000;
1296 /*****************************************************************/
1297 /* Desc: Application Layer Process Object Details */
1298 /* Returns: New offset pointer into tvb */
1299 /*****************************************************************/
1301 dnp3_al_process_object(tvbuff_t *tvb, packet_info *pinfo, int offset, proto_tree *robj_tree, gboolean header_only, guint16 *al_objtype)
1304 guint8 al_2bit, al_objq, al_objq_index, al_objq_code, al_ptflags, al_ctlobj_code, al_oct_len=0,
1305 al_ctlobj_code_c, al_ctlobj_code_m, al_ctlobj_code_tc, al_ctlobj_count, al_bi_val, bitindex=0;
1306 guint16 al_obj, al_val16=0, al_ctlobj_stat, al_relms;
1307 guint32 al_val32, al_ptaddr=0, al_ctlobj_on, al_ctlobj_off;
1308 nstime_t al_cto, al_reltime, al_abstime;
1313 int item_num, num_items=0;
1314 int orig_offset, start_offset, rangebytes=0, indexbytes=0;
1315 proto_item *object_item = NULL, *point_item = NULL, *qualifier_item = NULL, *range_item = NULL;
1316 proto_tree *object_tree = NULL, *point_tree, *qualifier_tree, *range_tree;
1317 const gchar *ctl_code_str, *ctl_misc_str, *ctl_tc_str, *ctl_status_str;
1319 orig_offset = offset;
1321 /* Application Layer Objects in this Message */
1323 al_obj = tvb_get_ntohs(tvb, offset);
1325 /* Special handling for Octet string objects as the variation is the length of the string */
1326 if ((al_obj & 0xFF00) == AL_OBJ_OCT) {
1327 al_oct_len = al_obj & 0xFF;
1328 al_obj = AL_OBJ_OCT;
1331 /* Create Data Objects Detail Tree */
1332 object_item = proto_tree_add_uint_format(robj_tree, hf_dnp3_al_obj, tvb, offset, 2, al_obj,
1333 "Object(s): %s (0x%04x)",
1334 val_to_str_ext_const(al_obj, &dnp3_al_obj_vals_ext, "Unknown Object - Abort Decoding..."),
1336 object_tree = proto_item_add_subtree(object_item, ett_dnp3_al_obj);
1340 /* Object Qualifier */
1341 al_objq = tvb_get_guint8(tvb, offset);
1342 al_objq_index = al_objq & AL_OBJQ_INDEX;
1343 al_objq_index = al_objq_index >> 4;
1344 al_objq_code = al_objq & AL_OBJQ_CODE;
1346 qualifier_item = proto_tree_add_text(object_tree, tvb, offset, 1, "Qualifier Field, Prefix: %s, Code: %s",
1347 val_to_str_ext_const(al_objq_index, &dnp3_al_objq_index_vals_ext, "Unknown Index Type"),
1348 val_to_str_ext_const(al_objq_code, &dnp3_al_objq_code_vals_ext, "Unknown Code Type"));
1349 qualifier_tree = proto_item_add_subtree(qualifier_item, ett_dnp3_al_obj_qualifier);
1350 proto_tree_add_item(qualifier_tree, hf_dnp3_al_objq_index, tvb, offset, 1, FALSE);
1351 proto_tree_add_item(qualifier_tree, hf_dnp3_al_objq_code, tvb, offset, 1, FALSE);
1355 /* Create (possibly synthesized) number of items and range field tree */
1356 range_item = proto_tree_add_text(object_tree, tvb, offset, 0, "Number of Items: ");
1357 range_tree = proto_item_add_subtree(range_item, ett_dnp3_al_obj_range);
1359 switch (al_objq_code)
1361 case AL_OBJQL_CODE_SSI8: /* 8-bit Start and Stop Indices in Range Field */
1362 num_items = ( tvb_get_guint8(tvb, offset+1) - tvb_get_guint8(tvb, offset) + 1);
1363 PROTO_ITEM_SET_GENERATED(range_item);
1364 al_ptaddr = tvb_get_guint8(tvb, offset);
1365 proto_tree_add_item(range_tree, hf_dnp3_al_range_start8, tvb, offset, 1, TRUE);
1366 proto_tree_add_item(range_tree, hf_dnp3_al_range_stop8, tvb, offset + 1, 1, TRUE);
1369 case AL_OBJQL_CODE_SSI16: /* 16-bit Start and Stop Indices in Range Field */
1370 num_items = ( tvb_get_letohs(tvb, offset+2) - tvb_get_letohs(tvb, (offset)) + 1);
1371 PROTO_ITEM_SET_GENERATED(range_item);
1372 al_ptaddr = tvb_get_letohs(tvb, offset);
1373 proto_tree_add_item(range_tree, hf_dnp3_al_range_start16, tvb, offset, 2, TRUE);
1374 proto_tree_add_item(range_tree, hf_dnp3_al_range_stop16, tvb, offset + 2, 2, TRUE);
1377 case AL_OBJQL_CODE_SSI32: /* 32-bit Start and Stop Indices in Range Field */
1378 num_items = ( tvb_get_letohl(tvb, offset+4) - tvb_get_letohl(tvb, offset) + 1);
1379 PROTO_ITEM_SET_GENERATED(range_item);
1380 al_ptaddr = tvb_get_letohl(tvb, offset);
1381 proto_tree_add_item(range_tree, hf_dnp3_al_range_start32, tvb, offset, 4, TRUE);
1382 proto_tree_add_item(range_tree, hf_dnp3_al_range_stop32, tvb, offset + 4, 4, TRUE);
1385 case AL_OBJQL_CODE_AA8: /* 8-bit Absolute Address in Range Field */
1387 PROTO_ITEM_SET_GENERATED(range_item);
1388 al_ptaddr = tvb_get_guint8(tvb, offset);
1389 proto_tree_add_item(range_tree, hf_dnp3_al_range_abs8, tvb, offset, 1, TRUE);
1392 case AL_OBJQL_CODE_AA16: /* 16-bit Absolute Address in Range Field */
1394 PROTO_ITEM_SET_GENERATED(range_item);
1395 al_ptaddr = tvb_get_letohs(tvb, offset);
1396 proto_tree_add_item(range_tree, hf_dnp3_al_range_abs16, tvb, offset, 2, TRUE);
1399 case AL_OBJQL_CODE_AA32: /* 32-bit Absolute Address in Range Field */
1401 PROTO_ITEM_SET_GENERATED(range_item);
1402 al_ptaddr = tvb_get_letohl(tvb, offset);
1403 proto_tree_add_item(range_tree, hf_dnp3_al_range_abs32, tvb, offset, 4, TRUE);
1406 case AL_OBJQL_CODE_SF8: /* 8-bit Single Field Quantity in Range Field */
1407 num_items = tvb_get_guint8(tvb, offset);
1408 proto_tree_add_item(range_tree, hf_dnp3_al_range_quant8, tvb, offset, 1, TRUE);
1410 proto_item_set_len(range_item, rangebytes);
1412 case AL_OBJQL_CODE_SF16: /* 16-bit Single Field Quantity in Range Field */
1413 num_items = tvb_get_letohs(tvb, offset);
1414 proto_tree_add_item(range_tree, hf_dnp3_al_range_quant16, tvb, offset, 2, TRUE);
1416 proto_item_set_len(range_item, rangebytes);
1418 case AL_OBJQL_CODE_SF32: /* 32-bit Single Field Quantity in Range Field */
1419 num_items = tvb_get_letohl(tvb, offset);
1420 proto_tree_add_item(range_tree, hf_dnp3_al_range_quant32, tvb, offset, 4, TRUE);
1422 proto_item_set_len(range_item, rangebytes);
1425 if (num_items > 0) {
1426 proto_item_append_text(object_item, ", %d point%s", num_items, plurality(num_items, "", "s"));
1428 proto_item_append_text(range_item, "%d", num_items);
1430 if (num_items < 0) {
1431 proto_item_append_text(range_item, " (bogus)");
1432 expert_add_info_format(pinfo, range_item, PI_MALFORMED, PI_ERROR, "Negative number of items");
1433 return tvb_length(tvb);
1437 offset += rangebytes;
1439 bitindex = 0; /* Temp variable for cycling through points when object values are encoded into
1440 bits; primarily objects 0x0101, 0x0301 & 0x1001 */
1442 /* Only process the point information for replies or items with point index lists */
1443 if (!header_only || al_objq_index > 0) {
1444 start_offset = offset;
1445 for (item_num = 0; item_num < num_items; item_num++)
1447 /* Create Point item and Process Index */
1448 point_item = proto_tree_add_text(object_tree, tvb, offset, 0, "Point Number");
1449 point_tree = proto_item_add_subtree(point_item, ett_dnp3_al_obj_point);
1452 indexbytes = dnp3_al_obj_procindex(tvb, offset, al_objq_index, &al_ptaddr, point_tree);
1453 proto_item_append_text(point_item, " %u", al_ptaddr);
1454 data_pos += indexbytes;
1460 case AL_OBJ_BI_ALL: /* Binary Input Default Variation (Obj:01, Var:Default) */
1461 case AL_OBJ_BIC_ALL: /* Binary Input Change Default Variation (Obj:02, Var:Default) */
1462 case AL_OBJ_2BI_ALL: /* Double-bit Input Default Variation (Obj:03, Var:Default) */
1463 case AL_OBJ_CTR_ALL: /* Binary Counter Default Variation (Obj:20, Var:Default) */
1464 case AL_OBJ_CTRC_ALL: /* Binary Counter Change Default Variation (Obj:22 Var:Default) */
1465 case AL_OBJ_AI_ALL: /* Analog Input Default Variation (Obj:30, Var:Default) */
1466 case AL_OBJ_AIC_ALL: /* Analog Input Change Default Variation (Obj:32 Var:Default) */
1471 case AL_OBJ_BI_1BIT: /* Single-Bit Binary Input (Obj:01, Var:01) */
1472 case AL_OBJ_BO: /* Binary Output (Obj:10, Var:01) */
1474 /* Reset bit index if we've gone onto the next byte */
1478 offset += (indexbytes + 1);
1481 /* Extract the bit from the packed byte */
1482 al_bi_val = tvb_get_guint8(tvb, offset);
1483 al_bit = (al_bi_val & (1 << bitindex)) > 0;
1485 proto_item_append_text(point_item, ", Value: %u", al_bit);
1486 proto_tree_add_boolean(point_tree, hf_dnp3_al_bit, tvb, offset, 1, al_bit);
1487 proto_item_set_len(point_item, indexbytes + 1);
1489 /* If we've read the last item, then move the offset past this byte */
1490 if (item_num == (num_items-1))
1492 offset += (indexbytes + 1);
1497 case AL_OBJ_2BI_NF: /* Double-bit Input No Flags (Obj:03, Var:01) */
1502 offset += (indexbytes + 1);
1505 /* Extract the Double-bit from the packed byte */
1506 al_bi_val = tvb_get_guint8(tvb, offset);
1507 al_2bit = ((al_bi_val >> (bitindex << 1)) & 3);
1509 proto_item_append_text(point_item, ", Value: %u", al_2bit);
1510 proto_tree_add_uint(point_tree, hf_dnp3_al_2bit, tvb, offset, 1, al_2bit);
1511 proto_item_set_len(point_item, indexbytes + 1);
1513 /* If we've read the last item, then move the offset past this byte */
1514 if (item_num == (num_items-1))
1516 offset += (indexbytes + 1);
1522 case AL_OBJ_BI_STAT: /* Binary Input With Status (Obj:01, Var:02) */
1523 case AL_OBJ_BIC_NOTIME: /* Binary Input Change Without Time (Obj:02, Var:01) */
1524 case AL_OBJ_BO_STAT: /* Binary Output Status (Obj:10, Var:02) */
1526 /* Get Point Flags */
1527 al_ptflags = tvb_get_guint8(tvb, data_pos);
1530 case AL_OBJ_BI_STAT:
1531 case AL_OBJ_BIC_NOTIME:
1532 dnp3_al_obj_quality(tvb, data_pos, al_ptflags, point_tree, point_item, BIN_IN);
1534 case AL_OBJ_BO_STAT:
1535 dnp3_al_obj_quality(tvb, data_pos, al_ptflags, point_tree, point_item, BIN_OUT);
1540 al_bit = (al_ptflags & AL_OBJ_BI_FLAG7) > 0;
1541 proto_item_append_text(point_item, ", Value: %u", al_bit);
1543 proto_item_set_len(point_item, data_pos - offset);
1548 case AL_OBJ_2BI_STAT: /* Double-bit Input With Status (Obj:03, Var:02) */
1549 case AL_OBJ_2BIC_NOTIME: /* Double-bit Input Change Without Time (Obj:04, Var:01) */
1551 /* Get Point Flags */
1552 al_ptflags = tvb_get_guint8(tvb, data_pos);
1553 dnp3_al_obj_quality(tvb, data_pos, al_ptflags, point_tree, point_item, BIN_IN);
1556 al_2bit = (al_ptflags >> 6) & 3;
1557 proto_item_append_text(point_item, ", Value: %u", al_2bit);
1558 proto_item_set_len(point_item, data_pos - offset);
1563 case AL_OBJ_BIC_TIME: /* Binary Input Change w/ Time (Obj:02, Var:02) */
1565 /* Get Point Flags */
1566 al_ptflags = tvb_get_guint8(tvb, data_pos);
1567 dnp3_al_obj_quality(tvb, data_pos, al_ptflags, point_tree, point_item, BIN_IN);
1572 dnp3_al_get_timestamp(&al_abstime, tvb, data_pos);
1573 proto_tree_add_time(point_tree, hf_dnp3_al_timestamp, tvb, data_pos, 6, &al_abstime);
1576 al_bit = (al_ptflags & AL_OBJ_BI_FLAG7) >> 7; /* bit shift 1xxxxxxx -> xxxxxxx1 */
1577 proto_item_append_text(point_item, ", Value: %u, Timestamp: %s", al_bit, abs_time_to_str(&al_abstime, ABSOLUTE_TIME_LOCAL, TRUE));
1578 proto_item_set_len(point_item, data_pos - offset);
1583 case AL_OBJ_2BIC_TIME: /* Double-bit Input Change w/ Time (Obj:04, Var:02) */
1585 /* Get Point Flags */
1586 al_ptflags = tvb_get_guint8(tvb, data_pos);
1587 dnp3_al_obj_quality(tvb, (offset+indexbytes), al_ptflags, point_tree, point_item, BIN_IN);
1592 dnp3_al_get_timestamp(&al_abstime, tvb, data_pos);
1593 proto_tree_add_time(point_tree, hf_dnp3_al_timestamp, tvb, data_pos, 6, &al_abstime);
1596 al_2bit = (al_ptflags >> 6) & 3; /* bit shift 11xxxxxx -> 00000011 */
1597 proto_item_append_text(point_item, ", Value: %u, Timestamp: %s", al_2bit, abs_time_to_str(&al_abstime, ABSOLUTE_TIME_LOCAL, TRUE));
1598 proto_item_set_len(point_item, data_pos - offset);
1603 case AL_OBJ_BIC_RTIME: /* Binary Input Change w/ Relative Time (Obj:02, Var:03) */
1605 /* Get Point Flags */
1606 al_ptflags = tvb_get_guint8(tvb, data_pos);
1607 dnp3_al_obj_quality(tvb, data_pos, al_ptflags, point_tree, point_item, BIN_IN);
1610 /* Get relative time, and convert to ns_time */
1611 al_relms = tvb_get_letohs(tvb, data_pos);
1612 al_reltime.secs = al_relms / 1000;
1613 al_reltime.nsecs = (al_relms % 1000) * 1000;
1614 /* Now add to CTO time */
1615 nstime_sum(&al_abstime, &al_cto, &al_reltime);
1616 proto_tree_add_time(point_tree, hf_dnp3_al_rel_timestamp, tvb, data_pos, 2, &al_reltime);
1619 al_bit = (al_ptflags & AL_OBJ_BI_FLAG7) >> 7; /* bit shift 1xxxxxxx -> xxxxxxx1 */
1620 proto_item_append_text(point_item, ", Value: %u, Timestamp: %s", al_bit, abs_time_to_str(&al_abstime, ABSOLUTE_TIME_LOCAL, TRUE));
1621 proto_item_set_len(point_item, data_pos - offset);
1626 case AL_OBJ_CTLOP_BLK: /* Control Relay Output Block (Obj:12, Var:01) */
1628 al_ctlobj_code = tvb_get_guint8(tvb, data_pos);
1631 /* Bit-Mask xxxx1111 for Control Code 'Code' */
1632 al_ctlobj_code_c = al_ctlobj_code & AL_OBJCTLC_CODE;
1633 ctl_code_str = val_to_str(al_ctlobj_code_c, dnp3_al_ctlc_code_vals, "Ctrl Code Invalid (0x%02x)");
1635 /* Bit-Mask xx11xxxx for Control Code Misc Values */
1636 al_ctlobj_code_m = al_ctlobj_code & AL_OBJCTLC_MISC;
1637 ctl_misc_str = val_to_str_const(al_ctlobj_code_m, dnp3_al_ctlc_misc_vals, "");
1639 /* Bit-Mask 11xxxxxx for Control Code 'Trip/Close' */
1640 al_ctlobj_code_tc = al_ctlobj_code & AL_OBJCTLC_TC;
1641 ctl_tc_str = val_to_str_const(al_ctlobj_code_tc, dnp3_al_ctlc_tc_vals, "");
1643 /* Get "Count" Field */
1644 al_ctlobj_count = tvb_get_guint8(tvb, data_pos);
1647 /* Get "On Time" Field */
1648 al_ctlobj_on = tvb_get_letohl(tvb, data_pos);
1651 /* Get "Off Time" Field */
1652 al_ctlobj_off = tvb_get_letohl(tvb, data_pos);
1655 al_ctlobj_stat = tvb_get_guint8(tvb, data_pos);
1656 proto_tree_add_item(point_item, hf_dnp3_al_ctrlstatus, tvb, data_pos, 1, TRUE);
1657 ctl_status_str = val_to_str_ext(al_ctlobj_stat, &dnp3_al_ctl_status_vals_ext, "Invalid Status (0x%02x)");
1660 proto_item_append_text(point_item, ", Control Code: [%s,%s,%s (0x%02x)]",
1661 ctl_code_str, ctl_misc_str, ctl_tc_str, al_ctlobj_code);
1663 proto_tree_add_text(point_tree, tvb, data_pos - 11, 11,
1664 " [Count: %u] [On-Time: %u] [Off-Time: %u] [Status: %s (0x%02x)]",
1665 al_ctlobj_count, al_ctlobj_on, al_ctlobj_off, ctl_status_str, al_ctlobj_stat);
1667 proto_item_set_len(point_item, data_pos - offset);
1672 case AL_OBJ_AO_32OPB: /* 32-Bit Analog Output Block (Obj:41, Var:01) */
1673 case AL_OBJ_AO_16OPB: /* 16-Bit Analog Output Block (Obj:41, Var:02) */
1674 case AL_OBJ_AO_FLTOPB: /* 32-Bit Floating Point Output Block (Obj:41, Var:03) */
1675 case AL_OBJ_AO_DBLOPB: /* 64-Bit Floating Point Output Block (Obj:41, Var:04) */
1679 case AL_OBJ_AO_32OPB:
1680 al_val32 = tvb_get_letohl(tvb, data_pos);
1681 proto_item_append_text(point_item, ", Value: %u", al_val32);
1682 proto_tree_add_item(point_tree, hf_dnp3_al_anaout32, tvb, data_pos, 4, TRUE);
1685 case AL_OBJ_AO_16OPB:
1686 al_val32 = tvb_get_letohs(tvb, data_pos);
1687 proto_item_append_text(point_item, ", Value: %u", al_val32);
1688 proto_tree_add_item(point_tree, hf_dnp3_al_anaout16, tvb, data_pos, 2, TRUE);
1691 case AL_OBJ_AO_FLTOPB:
1692 al_valflt = tvb_get_letohieee_float(tvb, data_pos);
1693 proto_item_append_text(point_item, ", Value: %g", al_valflt);
1694 proto_tree_add_item(point_tree, hf_dnp3_al_anaoutflt, tvb, data_pos, 4, TRUE);
1697 case AL_OBJ_AO_DBLOPB:
1698 al_valdbl = tvb_get_letohieee_double(tvb, data_pos);
1699 proto_item_append_text(point_item, ", Value: %g", al_valdbl);
1700 proto_tree_add_item(point_tree, hf_dnp3_al_anaoutdbl, tvb, data_pos, 8, TRUE);
1705 /* Get control status */
1706 al_ctlobj_stat = tvb_get_guint8(tvb, data_pos);
1707 ctl_status_str = val_to_str_ext(al_ctlobj_stat, &dnp3_al_ctl_status_vals_ext, "Invalid Status (0x%02x)");
1708 proto_item_append_text(point_item, " [Status: %s (0x%02x)]", ctl_status_str, al_ctlobj_stat);
1709 proto_tree_add_item(point_tree, hf_dnp3_al_ctrlstatus, tvb, data_pos, 1, TRUE);
1712 proto_item_set_len(point_item, data_pos - offset);
1717 case AL_OBJ_CTR_32: /* 32-Bit Binary Counter (Obj:20, Var:01) */
1718 case AL_OBJ_CTR_16: /* 16-Bit Binary Counter (Obj:20, Var:02) */
1719 case AL_OBJ_DCTR_32: /* 32-Bit Binary Delta Counter (Obj:20, Var:03) */
1720 case AL_OBJ_DCTR_16: /* 16-Bit Binary Delta Counter (Obj:20, Var:04) */
1721 case AL_OBJ_CTR_32NF: /* 32-Bit Binary Counter Without Flag (Obj:20, Var:05) */
1722 case AL_OBJ_CTR_16NF: /* 16-Bit Binary Counter Without Flag (Obj:20, Var:06) */
1723 case AL_OBJ_DCTR_32NF: /* 32-Bit Binary Delta Counter Without Flag (Obj:20, Var:07) */
1724 case AL_OBJ_DCTR_16NF: /* 16-Bit Binary Delta Counter Without Flag (Obj:20, Var:08) */
1725 case AL_OBJ_FCTR_32: /* 32-Bit Frozen Counter (Obj:21, Var:01) */
1726 case AL_OBJ_FCTR_16: /* 16-Bit Frozen Counter (Obj:21, Var:02) */
1727 case AL_OBJ_FDCTR_32: /* 21 03 32-Bit Frozen Delta Counter */
1728 case AL_OBJ_FDCTR_16: /* 21 04 16-Bit Frozen Delta Counter */
1729 case AL_OBJ_FCTR_32T: /* 21 05 32-Bit Frozen Counter w/ Time of Freeze */
1730 case AL_OBJ_FCTR_16T: /* 21 06 16-Bit Frozen Counter w/ Time of Freeze */
1731 case AL_OBJ_FDCTR_32T: /* 21 07 32-Bit Frozen Delta Counter w/ Time of Freeze */
1732 case AL_OBJ_FDCTR_16T: /* 21 08 16-Bit Frozen Delta Counter w/ Time of Freeze */
1733 case AL_OBJ_FCTR_32NF: /* 21 09 32-Bit Frozen Counter Without Flag */
1734 case AL_OBJ_FCTR_16NF: /* 21 10 16-Bit Frozen Counter Without Flag */
1735 case AL_OBJ_FDCTR_32NF: /* 21 11 32-Bit Frozen Delta Counter Without Flag */
1736 case AL_OBJ_FDCTR_16NF: /* 21 12 16-Bit Frozen Delta Counter Without Flag */
1737 case AL_OBJ_CTRC_32: /* 32-Bit Counter Change Event w/o Time (Obj:22, Var:01) */
1738 case AL_OBJ_CTRC_16: /* 16-Bit Counter Change Event w/o Time (Obj:22, Var:02) */
1739 case AL_OBJ_DCTRC_32: /* 32-Bit Delta Counter Change Event w/o Time (Obj:22, Var:03) */
1740 case AL_OBJ_DCTRC_16: /* 16-Bit Delta Counter Change Event w/o Time (Obj:22, Var:04) */
1741 case AL_OBJ_CTRC_32T: /* 32-Bit Counter Change Event with Time (Obj:22, Var:05) */
1742 case AL_OBJ_CTRC_16T: /* 16-Bit Counter Change Event with Time (Obj:22, Var:06) */
1743 case AL_OBJ_DCTRC_32T: /* 32-Bit Delta Counter Change Event with Time (Obj:22, Var:07) */
1744 case AL_OBJ_DCTRC_16T: /* 16-Bit Delta Counter Change Event with Time (Obj:22, Var:08) */
1745 case AL_OBJ_FCTRC_32: /* 21 01 32-Bit Frozen Counter Change Event */
1746 case AL_OBJ_FCTRC_16: /* 21 02 16-Bit Frozen Counter Change Event */
1747 case AL_OBJ_FDCTRC_32: /* 21 03 32-Bit Frozen Delta Counter Change Event */
1748 case AL_OBJ_FDCTRC_16: /* 21 04 16-Bit Frozen Delta Counter Change Event */
1749 case AL_OBJ_FCTRC_32T: /* 21 05 32-Bit Frozen Counter Change Event w/ Time of Freeze */
1750 case AL_OBJ_FCTRC_16T: /* 21 06 16-Bit Frozen Counter Change Event w/ Time of Freeze */
1751 case AL_OBJ_FDCTRC_32T: /* 21 07 32-Bit Frozen Delta Counter Change Event w/ Time of Freeze */
1752 case AL_OBJ_FDCTRC_16T: /* 21 08 16-Bit Frozen Delta Counter Change Event w/ Time of Freeze */
1754 /* Get Point Flags for those types that have them, it's easier to block out those that don't have flags */
1757 case AL_OBJ_CTR_32NF:
1758 case AL_OBJ_CTR_16NF:
1759 case AL_OBJ_DCTR_32NF:
1760 case AL_OBJ_DCTR_16NF:
1761 case AL_OBJ_FCTR_32NF:
1762 case AL_OBJ_FCTR_16NF:
1763 case AL_OBJ_FDCTR_32NF:
1764 case AL_OBJ_FDCTR_16NF:
1768 al_ptflags = tvb_get_guint8(tvb, data_pos);
1769 dnp3_al_obj_quality(tvb, data_pos, al_ptflags, point_tree, point_item, COUNTER);
1774 /* Get Counter values */
1778 case AL_OBJ_DCTR_32:
1779 case AL_OBJ_CTR_32NF:
1780 case AL_OBJ_DCTR_32NF:
1781 case AL_OBJ_FCTR_32:
1782 case AL_OBJ_FDCTR_32:
1783 case AL_OBJ_FCTR_32T:
1784 case AL_OBJ_FDCTR_32T:
1785 case AL_OBJ_FCTR_32NF:
1786 case AL_OBJ_FDCTR_32NF:
1787 case AL_OBJ_CTRC_32:
1788 case AL_OBJ_DCTRC_32:
1789 case AL_OBJ_CTRC_32T:
1790 case AL_OBJ_DCTRC_32T:
1791 case AL_OBJ_FCTRC_32:
1792 case AL_OBJ_FDCTRC_32:
1793 case AL_OBJ_FCTRC_32T:
1794 case AL_OBJ_FDCTRC_32T:
1796 al_val32 = tvb_get_letohl(tvb, data_pos);
1797 proto_item_append_text(point_item, ", Count: %u", al_val32);
1798 proto_tree_add_item(point_tree, hf_dnp3_al_cnt32, tvb, data_pos, 4, TRUE);
1803 case AL_OBJ_DCTR_16:
1804 case AL_OBJ_CTR_16NF:
1805 case AL_OBJ_DCTR_16NF:
1806 case AL_OBJ_FCTR_16:
1807 case AL_OBJ_FDCTR_16:
1808 case AL_OBJ_FCTR_16T:
1809 case AL_OBJ_FDCTR_16T:
1810 case AL_OBJ_FCTR_16NF:
1811 case AL_OBJ_FDCTR_16NF:
1812 case AL_OBJ_CTRC_16:
1813 case AL_OBJ_DCTRC_16:
1814 case AL_OBJ_CTRC_16T:
1815 case AL_OBJ_DCTRC_16T:
1816 case AL_OBJ_FCTRC_16:
1817 case AL_OBJ_FDCTRC_16:
1818 case AL_OBJ_FCTRC_16T:
1819 case AL_OBJ_FDCTRC_16T:
1821 al_val16 = tvb_get_letohs(tvb, data_pos);
1822 proto_item_append_text(point_item, ", Count: %u", al_val16);
1823 proto_tree_add_item(point_tree, hf_dnp3_al_cnt16, tvb, data_pos, 2, TRUE);
1828 /* Get the time for those points that have it */
1831 case AL_OBJ_FCTR_32T:
1832 case AL_OBJ_FCTR_16T:
1833 case AL_OBJ_FDCTR_32T:
1834 case AL_OBJ_FDCTR_16T:
1835 case AL_OBJ_CTRC_32T:
1836 case AL_OBJ_CTRC_16T:
1837 case AL_OBJ_DCTRC_32T:
1838 case AL_OBJ_DCTRC_16T:
1839 case AL_OBJ_FCTRC_32T:
1840 case AL_OBJ_FCTRC_16T:
1841 case AL_OBJ_FDCTRC_32T:
1842 case AL_OBJ_FDCTRC_16T:
1843 dnp3_al_get_timestamp(&al_abstime, tvb, data_pos);
1844 proto_item_append_text(point_item, ", Timestamp: %s", abs_time_to_str(&al_abstime, ABSOLUTE_TIME_LOCAL, TRUE));
1845 proto_tree_add_time(point_tree, hf_dnp3_al_timestamp, tvb, data_pos, 6, &al_abstime);
1850 proto_item_set_len(point_item, data_pos - offset);
1855 case AL_OBJ_AI_32: /* 32-Bit Analog Input (Obj:30, Var:01) */
1856 case AL_OBJ_AI_16: /* 16-Bit Analog Input (Obj:30, Var:02) */
1857 case AL_OBJ_AI_32NF: /* 32-Bit Analog Input Without Flag (Obj:30, Var:03) */
1858 case AL_OBJ_AI_16NF: /* 16-Bit Analog Input Without Flag (Obj:30, Var:04) */
1859 case AL_OBJ_AI_FLT: /* 32-Bit Floating Point Input (Obj:30, Var:05) */
1860 case AL_OBJ_AI_DBL: /* 64-Bit Floating Point Input (Obj:30, Var:06) */
1861 case AL_OBJ_AIF_FLT: /* 32-Bit Frozen Floating Point Input (Obj:31, Var:07) */
1862 case AL_OBJ_AIF_DBL: /* 64-Bit Frozen Floating Point Input (Obj:31, Var:08) */
1863 case AL_OBJ_AIC_32NT: /* 32-Bit Analog Change Event w/o Time (Obj:32, Var:01) */
1864 case AL_OBJ_AIC_16NT: /* 16-Bit Analog Change Event w/o Time (Obj:32, Var:02) */
1865 case AL_OBJ_AIC_32T: /* 32-Bit Analog Change Event with Time (Obj:32, Var:03) */
1866 case AL_OBJ_AIC_16T: /* 16-Bit Analog Change Event with Time (Obj:32, Var:04) */
1867 case AL_OBJ_AIC_FLTNT: /* 32-Bit Floating Point Change Event w/o Time (Obj:32, Var:05) */
1868 case AL_OBJ_AIC_DBLNT: /* 64-Bit Floating Point Change Event w/o Time (Obj:32, Var:06) */
1869 case AL_OBJ_AIC_FLTT: /* 32-Bit Floating Point Change Event w/ Time (Obj:32, Var:07) */
1870 case AL_OBJ_AIC_DBLT: /* 64-Bit Floating Point Change Event w/ Time (Obj:32, Var:08) */
1871 case AL_OBJ_AIFC_FLTNT: /* 32-Bit Floating Point Frozen Change Event w/o Time (Obj:33, Var:05) */
1872 case AL_OBJ_AIFC_DBLNT: /* 64-Bit Floating Point Frozen Change Event w/o Time (Obj:33, Var:06) */
1873 case AL_OBJ_AIFC_FLTT: /* 32-Bit Floating Point Frozen Change Event w/ Time (Obj:33, Var:07) */
1874 case AL_OBJ_AIFC_DBLT: /* 64-Bit Floating Point Frozen Change Event w/ Time (Obj:33, Var:08) */
1876 /* Get Point Flags for those types that have them */
1879 case AL_OBJ_AI_32NF:
1880 case AL_OBJ_AI_16NF:
1884 al_ptflags = tvb_get_guint8(tvb, data_pos);
1885 dnp3_al_obj_quality(tvb, data_pos, al_ptflags, point_tree, point_item, ANA_IN);
1893 case AL_OBJ_AI_32NF:
1894 case AL_OBJ_AIC_32NT:
1895 case AL_OBJ_AIC_32T:
1897 al_val32 = tvb_get_letohl(tvb, data_pos);
1898 proto_item_append_text(point_item, ", Value: %u", al_val32);
1899 proto_tree_add_item(point_tree, hf_dnp3_al_ana32, tvb, data_pos, 4, TRUE);
1904 case AL_OBJ_AI_16NF:
1905 case AL_OBJ_AIC_16NT:
1906 case AL_OBJ_AIC_16T:
1908 al_val16 = tvb_get_letohs(tvb, data_pos);
1909 proto_item_append_text(point_item, ", Value: %u", al_val16);
1910 proto_tree_add_item(point_tree, hf_dnp3_al_ana16, tvb, data_pos, 2, TRUE);
1915 case AL_OBJ_AIF_FLT:
1916 case AL_OBJ_AIC_FLTNT:
1917 case AL_OBJ_AIC_FLTT:
1918 case AL_OBJ_AIFC_FLTNT:
1919 case AL_OBJ_AIFC_FLTT:
1921 al_valflt = tvb_get_letohieee_float(tvb, data_pos);
1922 proto_item_append_text(point_item, ", Value: %g", al_valflt);
1923 proto_tree_add_item(point_tree, hf_dnp3_al_anaflt, tvb, data_pos, 4, TRUE);
1928 case AL_OBJ_AIF_DBL:
1929 case AL_OBJ_AIC_DBLNT:
1930 case AL_OBJ_AIC_DBLT:
1931 case AL_OBJ_AIFC_DBLNT:
1932 case AL_OBJ_AIFC_DBLT:
1934 al_valdbl = tvb_get_letohieee_double(tvb, data_pos);
1935 proto_item_append_text(point_item, ", Value: %g", al_valdbl);
1936 proto_tree_add_item(point_tree, hf_dnp3_al_anadbl, tvb, data_pos, 8, TRUE);
1944 case AL_OBJ_AIC_32T:
1945 case AL_OBJ_AIC_16T:
1946 case AL_OBJ_AIC_FLTT:
1947 case AL_OBJ_AIC_DBLT:
1948 case AL_OBJ_AIFC_FLTT:
1949 case AL_OBJ_AIFC_DBLT:
1950 dnp3_al_get_timestamp(&al_abstime, tvb, data_pos);
1951 proto_item_append_text(point_item, ", Timestamp: %s", abs_time_to_str(&al_abstime, ABSOLUTE_TIME_LOCAL, TRUE));
1952 proto_tree_add_time(point_tree, hf_dnp3_al_timestamp, tvb, data_pos, 6, &al_abstime);
1957 proto_item_set_len(point_item, data_pos - offset);
1962 case AL_OBJ_AO_32: /* 32-Bit Analog Output Status (Obj:40, Var:01) */
1963 case AL_OBJ_AO_16: /* 16-Bit Analog Output Status (Obj:40, Var:02) */
1964 case AL_OBJ_AO_FLT: /* 32-Bit Floating Point Output Status (Obj:40, Var:03) */
1965 case AL_OBJ_AO_DBL: /* 64-Bit Floating Point Output Status (Obj:40, Var:04) */
1967 /* Get Point Flags */
1968 al_ptflags = tvb_get_guint8(tvb, data_pos);
1969 dnp3_al_obj_quality(tvb, data_pos, al_ptflags, point_tree, point_item, ANA_OUT);
1974 case AL_OBJ_AO_32: /* 32-Bit Analog Output Status (Obj:40, Var:01) */
1976 al_val32 = tvb_get_letohl(tvb, data_pos);
1977 proto_item_append_text(point_item, ", Value: %u", al_val32);
1978 proto_tree_add_item(point_tree, hf_dnp3_al_anaout32, tvb, data_pos, 4, TRUE);
1982 case AL_OBJ_AO_16: /* 16-Bit Analog Output Status (Obj:40, Var:02) */
1984 al_val16 = tvb_get_letohs(tvb, data_pos);
1985 proto_item_append_text(point_item, ", Value: %u", al_val16);
1986 proto_tree_add_item(point_tree, hf_dnp3_al_anaout16, tvb, data_pos, 2, TRUE);
1990 case AL_OBJ_AO_FLT: /* 32-Bit Floating Point Output Status (Obj:40, Var:03) */
1992 al_valflt = tvb_get_letohieee_float(tvb, data_pos);
1993 proto_item_append_text(point_item, ", Value: %g", al_valflt);
1994 proto_tree_add_item(point_tree, hf_dnp3_al_anaoutflt, tvb, data_pos, 4, TRUE);
1998 case AL_OBJ_AO_DBL: /* 64-Bit Floating Point Output Status (Obj:40, Var:04) */
2000 al_valdbl = tvb_get_letohieee_double(tvb, data_pos);
2001 proto_item_append_text(point_item, ", Value: %g", al_valdbl);
2002 proto_tree_add_item(point_tree, hf_dnp3_al_anaoutdbl, tvb, data_pos, 8, TRUE);
2007 proto_item_set_len(point_item, data_pos - offset);
2012 case AL_OBJ_TD: /* Time and Date (Obj:50, Var:01) */
2013 case AL_OBJ_TDCTO: /* Time and Date CTO (Obj:51, Var:01) */
2015 dnp3_al_get_timestamp(&al_cto, tvb, data_pos);
2016 proto_tree_add_time(object_tree, hf_dnp3_al_timestamp, tvb, data_pos, 6, &al_cto);
2018 proto_item_set_len(point_item, data_pos - offset);
2023 case AL_OBJ_TDELAYF: /* Time Delay - Fine (Obj:52, Var:02) */
2025 al_val16 = tvb_get_letohs(tvb, data_pos);
2026 proto_tree_add_text(object_tree, tvb, data_pos, 2, "Time Delay: %u ms", al_val16);
2028 proto_item_set_len(point_item, data_pos - offset);
2033 case AL_OBJ_CLASS0: /* Class Data Objects */
2042 case AL_OBJ_IIN: /* IIN Data Object */
2044 /* Single byte of data here */
2045 proto_tree_add_text(object_tree, tvb, data_pos, 1, "Value: %u", tvb_get_guint8(tvb, data_pos));
2047 proto_item_set_len(point_item, data_pos - offset);
2052 case AL_OBJ_OCT: /* Octet string */
2054 /* read the number of bytes defined by the variation */
2055 if (al_oct_len > 0) {
2056 proto_tree_add_text(object_tree, tvb, data_pos, al_oct_len, "Octet String (%u bytes)", al_oct_len);
2057 data_pos += al_oct_len;
2058 proto_item_set_len(point_item, data_pos - offset);
2064 default: /* In case of unknown object */
2066 proto_tree_add_text(object_tree, tvb, offset, tvb_reported_length_remaining(tvb, offset),
2067 "Unknown Data Chunk, %u Bytes", tvb_reported_length_remaining(tvb, offset));
2068 offset = tvb_length(tvb); /* Finish decoding if unknown object is encountered... */
2071 /* Increment the bit index for next time */
2074 /* And increment the point address, may be overwritten by an index value */
2077 if (start_offset > offset) {
2078 expert_add_info_format(pinfo, point_item, PI_MALFORMED, PI_ERROR, "Invalid length");
2079 offset = tvb_length(tvb); /* Finish decoding if unknown object is encountered... */
2083 proto_item_set_len(object_item, offset - orig_offset);
2088 /*****************************************************************/
2089 /* Application Layer Dissector */
2090 /*****************************************************************/
2092 dissect_dnp3_al(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
2094 guint8 al_ctl, al_seq, al_func, al_class = 0, i;
2095 guint16 bytes, obj_type;
2096 gboolean al_fir, al_fin, al_con, al_uns;
2097 guint data_len = 0, offset = 0;
2098 proto_item *ti = NULL, *tc, *t_robj;
2099 proto_tree *al_tree = NULL, *field_tree = NULL, *robj_tree = NULL;
2100 const gchar *func_code_str;
2102 data_len = tvb_length(tvb);
2104 /* Handle the control byte and function code */
2105 al_ctl = tvb_get_guint8(tvb, offset);
2106 al_seq = al_ctl & DNP3_AL_SEQ;
2107 al_fir = al_ctl & DNP3_AL_FIR;
2108 al_fin = al_ctl & DNP3_AL_FIN;
2109 al_con = al_ctl & DNP3_AL_CON;
2110 al_uns = al_ctl & DNP3_AL_UNS;
2111 al_func = tvb_get_guint8(tvb, (offset+1));
2112 func_code_str = val_to_str_ext(al_func, &dnp3_al_func_vals_ext, "Unknown function (0x%02x)");
2114 if (check_col(pinfo->cinfo, COL_INFO))
2115 col_append_sep_fstr(pinfo->cinfo, COL_INFO, NULL, "%s", func_code_str);
2116 col_set_fence(pinfo->cinfo, COL_INFO);
2118 /* format up the text representation */
2119 ti = proto_tree_add_text(tree, tvb, offset, data_len, "Application Layer: (");
2120 if (al_ctl & DNP3_AL_FIR) proto_item_append_text(ti, "FIR, ");
2121 if (al_ctl & DNP3_AL_FIN) proto_item_append_text(ti, "FIN, ");
2122 if (al_ctl & DNP3_AL_CON) proto_item_append_text(ti, "CON, ");
2123 proto_item_append_text(ti, "Sequence %u, %s)", al_seq, func_code_str);
2125 /* Add the al tree branch */
2126 al_tree = proto_item_add_subtree(ti, ett_dnp3_al);
2128 /* Application Layer control byte subtree */
2129 tc = proto_tree_add_uint_format(al_tree, hf_dnp3_al_ctl, tvb, offset, 1, al_ctl,
2130 "Control: 0x%02x (", al_ctl);
2131 if (al_ctl & DNP3_AL_FIR) proto_item_append_text(tc, "FIR, ");
2132 if (al_ctl & DNP3_AL_FIN) proto_item_append_text(tc, "FIN, ");
2133 if (al_ctl & DNP3_AL_CON) proto_item_append_text(tc, "CON, ");
2134 if (al_ctl & DNP3_AL_UNS) proto_item_append_text(tc, "UNS, ");
2135 proto_item_append_text(tc, "Sequence %u)", al_seq);
2137 field_tree = proto_item_add_subtree(tc, ett_dnp3_al_ctl);
2138 proto_tree_add_boolean(field_tree, hf_dnp3_al_fir, tvb, offset, 1, al_ctl);
2139 proto_tree_add_boolean(field_tree, hf_dnp3_al_fin, tvb, offset, 1, al_ctl);
2140 proto_tree_add_boolean(field_tree, hf_dnp3_al_con, tvb, offset, 1, al_ctl);
2141 proto_tree_add_boolean(field_tree, hf_dnp3_al_uns, tvb, offset, 1, al_ctl);
2142 proto_tree_add_item(field_tree, hf_dnp3_al_seq, tvb, offset, 1, FALSE);
2146 /* If this packet is NOT the final Application Layer Message, exit and continue
2147 processing the remaining data in the fragment. */
2150 t_robj = proto_tree_add_text(al_tree, tvb, offset, -1, "Buffering User Data Until Final Frame is Received..");
2155 /* Application Layer Function Code Byte */
2156 proto_tree_add_uint_format(al_tree, hf_dnp3_al_func, tvb, offset, 1, al_func,
2157 "Function Code: %s (0x%02x)", func_code_str, al_func);
2162 case AL_FUNC_READ: /* Read Function Code 0x01 */
2164 /* Create Read Request Data Objects Tree */
2165 t_robj = proto_tree_add_text(al_tree, tvb, offset, -1, "READ Request Data Objects");
2166 robj_tree = proto_item_add_subtree(t_robj, ett_dnp3_al_objdet);
2168 /* Process Data Object Details */
2169 while (offset <= (data_len-2)) { /* 2 octet object code + CRC32 */
2170 offset = dnp3_al_process_object(tvb, pinfo, offset, robj_tree, TRUE, &obj_type);
2172 /* Update class type for each object that was a class read */
2178 al_class |= (1 << ((obj_type & 0x0f) - 1));
2185 /* Update the col info if there were class reads */
2186 if (check_col(pinfo->cinfo, COL_INFO) && (al_class > 0)) {
2187 col_append_sep_fstr(pinfo->cinfo, COL_INFO, NULL, "Class ");
2188 for (i = 0; i < 4; i++) {
2189 if (al_class & (1 << i)) {
2190 col_append_fstr(pinfo->cinfo, COL_INFO, "%u", i);
2197 case AL_FUNC_WRITE: /* Write Function Code 0x02 */
2199 /* Create Write Request Data Objects Tree */
2200 t_robj = proto_tree_add_text(al_tree, tvb, offset, -1, "WRITE Request Data Objects");
2201 robj_tree = proto_item_add_subtree(t_robj, ett_dnp3_al_objdet);
2203 /* Process Data Object Details */
2204 while (offset <= (data_len-2)) { /* 2 octet object code + CRC32 */
2205 offset = dnp3_al_process_object(tvb, pinfo, offset, robj_tree, FALSE, &obj_type);
2210 case AL_FUNC_SELECT: /* Select Function Code 0x03 */
2212 /* Create Select Request Data Objects Tree */
2213 t_robj = proto_tree_add_text(al_tree, tvb, offset, -1, "SELECT Request Data Objects");
2214 robj_tree = proto_item_add_subtree(t_robj, ett_dnp3_al_objdet);
2216 /* Process Data Object Details */
2217 while (offset <= (data_len-2)) { /* 2 octet object code + CRC32 */
2218 offset = dnp3_al_process_object(tvb, pinfo, offset, robj_tree, FALSE, &obj_type);
2223 case AL_FUNC_OPERATE: /* Operate Function Code 0x04 */
2224 /* Functionally identical to 'SELECT' Function Code */
2226 /* Create Operate Request Data Objects Tree */
2227 t_robj = proto_tree_add_text(al_tree, tvb, offset, -1, "OPERATE Request Data Objects");
2228 robj_tree = proto_item_add_subtree(t_robj, ett_dnp3_al_objdet);
2230 /* Process Data Object Details */
2231 while (offset <= (data_len-2)) { /* 2 octet object code + CRC32 */
2232 offset = dnp3_al_process_object(tvb, pinfo, offset, robj_tree, FALSE, &obj_type);
2237 case AL_FUNC_DIROP: /* Direct Operate Function Code 0x05 */
2238 /* Functionally identical to 'SELECT' Function Code */
2240 /* Create Direct Operate Request Data Objects Tree */
2241 t_robj = proto_tree_add_text(al_tree, tvb, offset, -1, "DIRECT OPERATE Request Data Objects");
2242 robj_tree = proto_item_add_subtree(t_robj, ett_dnp3_al_objdet);
2244 /* Process Data Object Details */
2245 while (offset <= (data_len-2)) { /* 2 octet object code + CRC32 */
2246 offset = dnp3_al_process_object(tvb, pinfo, offset, robj_tree, FALSE, &obj_type);
2251 case AL_FUNC_ENSPMSG: /* Enable Spontaneous Messages Function Code 0x14 */
2253 /* Create Enable Spontaneous Messages Data Objects Tree */
2254 t_robj = proto_tree_add_text(al_tree, tvb, offset, -1, "Enable Spontaneous Msg's Data Objects");
2255 robj_tree = proto_item_add_subtree(t_robj, ett_dnp3_al_objdet);
2257 /* Process Data Object Details */
2258 while (offset <= (data_len-2)) { /* 2 octet object code + CRC32 */
2259 offset = dnp3_al_process_object(tvb, pinfo, offset, robj_tree, FALSE, &obj_type);
2264 case AL_FUNC_DELAYMST: /* Delay Measurement Function Code 0x17 */
2268 case AL_FUNC_RESPON: /* Response Function Code 0x81 */
2269 case AL_FUNC_UNSOLI: /* Unsolicited Response Function Code 0x82 */
2271 /* Application Layer IIN bits req'd if message is a response */
2272 dnp3_al_process_iin(tvb, offset, al_tree);
2275 /* Ensure there is actual data remaining in the message.
2276 A response will not contain data following the IIN bits,
2277 if there is none available */
2278 bytes = tvb_reported_length_remaining(tvb, offset);
2281 /* Create Response Data Objects Tree */
2282 t_robj = proto_tree_add_text(al_tree, tvb, offset, -1,"RESPONSE Data Objects");
2283 robj_tree = proto_item_add_subtree(t_robj, ett_dnp3_al_objdet);
2285 /* Process Data Object Details */
2286 while (offset <= (data_len-2)) { /* 2 octet object code + CRC32 */
2287 offset = dnp3_al_process_object(tvb, pinfo, offset, robj_tree, FALSE, &obj_type);
2293 default: /* Unknown Function */
2301 /*****************************************************************/
2302 /* Data Link and Transport layer dissector */
2303 /*****************************************************************/
2305 dissect_dnp3_message(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
2308 /* Set up structures needed to add the protocol subtree and manage it */
2309 proto_item *ti = NULL, *tdl, *tc, *al_chunks, *hidden_item;
2310 proto_tree *dnp3_tree = NULL, *dl_tree = NULL, *tr_tree = NULL, *field_tree = NULL, *al_tree = NULL;
2311 int offset = 0, temp_offset = 0, al_result = 0;
2312 gboolean dl_prm, tr_fir, tr_fin;
2313 guint8 dl_len, dl_ctl, dl_func, tr_ctl, tr_seq;
2314 const gchar *func_code_str;
2315 guint16 dl_dst, dl_src, dl_crc, calc_dl_crc;
2316 guint8 *tmp = NULL, *tmp_ptr;
2319 gboolean crc_OK = FALSE;
2320 tvbuff_t *al_tvb = NULL, *next_tvb;
2322 guint conv_seq_number;
2323 gboolean save_fragmented;
2324 fragment_data *frag_msg;
2325 gboolean update_col_info = TRUE;
2326 conversation_t *conversation;
2327 dnp3_conv_t *conv_data_ptr;
2331 /* Make entries in Protocol column and Info column on summary display */
2332 col_set_str(pinfo->cinfo, COL_PROTOCOL, "DNP 3.0");
2334 col_clear(pinfo->cinfo, COL_INFO);
2336 /* Skip "0x0564" header bytes */
2339 dl_len = tvb_get_guint8(tvb, temp_offset);
2342 dl_ctl = tvb_get_guint8(tvb, temp_offset);
2345 dl_dst = tvb_get_letohs(tvb, temp_offset);
2348 dl_src = tvb_get_letohs(tvb, temp_offset);
2350 dl_func = dl_ctl & DNP3_CTL_FUNC;
2351 dl_prm = dl_ctl & DNP3_CTL_PRM;
2352 func_code_str = val_to_str(dl_func, dl_prm ? dnp3_ctl_func_pri_vals : dnp3_ctl_func_sec_vals,
2353 "Unknown function (0x%02x)");
2355 if (check_col(pinfo->cinfo, COL_INFO))
2356 col_append_fstr(pinfo->cinfo, COL_INFO, "len=%u, from %u to %u, %s",
2357 dl_len, dl_src, dl_dst, func_code_str);
2359 /* create display subtree for the protocol */
2360 ti = proto_tree_add_item(tree, proto_dnp3, tvb, offset, -1, FALSE);
2361 dnp3_tree = proto_item_add_subtree(ti, ett_dnp3);
2363 /* Create Subtree for Data Link Layer */
2364 tdl = proto_tree_add_text(dnp3_tree, tvb, offset, DNP_HDR_LEN,
2365 "Data Link Layer, Len: %u, From: %u, To: %u, ", dl_len, dl_src, dl_dst);
2367 if (dl_ctl & DNP3_CTL_DIR) proto_item_append_text(tdl, "DIR, ");
2368 if (dl_ctl & DNP3_CTL_PRM) proto_item_append_text(tdl, "PRM, ");
2369 if (dl_ctl & DNP3_CTL_FCB) proto_item_append_text(tdl, "FCB, ");
2370 if (dl_ctl & DNP3_CTL_FCV) proto_item_append_text(tdl, "FCV, ");
2373 if (dl_ctl & DNP3_CTL_DIR) proto_item_append_text(tdl, "DIR, ");
2374 if (dl_ctl & DNP3_CTL_PRM) proto_item_append_text(tdl, "PRM, ");
2375 if (dl_ctl & DNP3_CTL_RES) proto_item_append_text(tdl, "RES, ");
2376 if (dl_ctl & DNP3_CTL_DFC) proto_item_append_text(tdl, "DFC, ");
2378 proto_item_append_text(tdl, "%s", func_code_str);
2379 dl_tree = proto_item_add_subtree(tdl, ett_dnp3_dl);
2382 proto_tree_add_item(dl_tree, hf_dnp3_start, tvb, offset, 2, FALSE);
2385 /* add length field */
2386 proto_tree_add_item(dl_tree, hf_dnp3_len, tvb, offset, 1, FALSE);
2389 /* Add Control Byte Subtree */
2390 tc = proto_tree_add_uint_format(dl_tree, hf_dnp3_ctl, tvb, offset, 1, dl_ctl,
2391 "Control: 0x%02x (", dl_ctl);
2392 /* Add Text to Control Byte Subtree Header */
2394 if (dl_ctl & DNP3_CTL_DIR) proto_item_append_text(tc, "DIR, ");
2395 if (dl_ctl & DNP3_CTL_PRM) proto_item_append_text(tc, "PRM, ");
2396 if (dl_ctl & DNP3_CTL_FCB) proto_item_append_text(tc, "FCB, ");
2397 if (dl_ctl & DNP3_CTL_FCV) proto_item_append_text(tc, "FCV, ");
2400 if (dl_ctl & DNP3_CTL_DIR) proto_item_append_text(tc, "DIR, ");
2401 if (dl_ctl & DNP3_CTL_PRM) proto_item_append_text(tc, "PRM, ");
2402 if (dl_ctl & DNP3_CTL_RES) proto_item_append_text(tc, "RES, ");
2403 if (dl_ctl & DNP3_CTL_DFC) proto_item_append_text(tc, "DFC, ");
2405 proto_item_append_text(tc, "%s)", func_code_str );
2406 field_tree = proto_item_add_subtree(tc, ett_dnp3_dl_ctl);
2408 /* Add Control Byte Subtree Items */
2410 proto_tree_add_item(field_tree, hf_dnp3_ctl_dir, tvb, offset, 1, TRUE);
2411 proto_tree_add_item(field_tree, hf_dnp3_ctl_prm, tvb, offset, 1, TRUE);
2412 proto_tree_add_item(field_tree, hf_dnp3_ctl_fcb, tvb, offset, 1, TRUE);
2413 proto_tree_add_item(field_tree, hf_dnp3_ctl_fcv, tvb, offset, 1, TRUE);
2414 proto_tree_add_item(field_tree, hf_dnp3_ctl_prifunc, tvb, offset, 1, FALSE);
2417 proto_tree_add_item(field_tree, hf_dnp3_ctl_dir, tvb, offset, 1, TRUE);
2418 proto_tree_add_item(field_tree, hf_dnp3_ctl_prm, tvb, offset, 1, TRUE);
2419 proto_tree_add_item(field_tree, hf_dnp3_ctl_dfc, tvb, offset, 1, TRUE);
2420 proto_tree_add_item(field_tree, hf_dnp3_ctl_secfunc, tvb, offset, 1, FALSE);
2424 /* add destination and source addresses */
2425 proto_tree_add_item(dl_tree, hf_dnp3_dst, tvb, offset, 2, TRUE);
2427 proto_tree_add_item(dl_tree, hf_dnp3_src, tvb, offset, 2, TRUE);
2430 /* and header CRC */
2431 dl_crc = tvb_get_letohs(tvb, offset);
2432 calc_dl_crc = calculateCRC(tvb_get_ptr(tvb, 0, DNP_HDR_LEN - 2), DNP_HDR_LEN - 2);
2433 if (dl_crc == calc_dl_crc)
2434 proto_tree_add_uint_format(dl_tree, hf_dnp_hdr_CRC, tvb, offset, 2,
2435 dl_crc, "CRC: 0x%04x [correct]", dl_crc);
2438 hidden_item = proto_tree_add_boolean(dl_tree, hf_dnp_hdr_CRC_bad, tvb,
2440 PROTO_ITEM_SET_HIDDEN(hidden_item);
2441 proto_tree_add_uint_format(dl_tree, hf_dnp_hdr_CRC, tvb, offset, 2,
2442 dl_crc, "CRC: 0x%04x [incorrect, should be 0x%04x]",
2443 dl_crc, calc_dl_crc);
2447 /* If the DataLink function is 'Request Link Status' or 'Status of Link',
2448 or 'Reset Link' we don't expect any Transport or Application Layer Data
2449 NOTE: This code should probably check what DOES have TR or AL data */
2450 if ((dl_func != DL_FUNC_LINK_STAT) && (dl_func != DL_FUNC_STAT_LINK) &&
2451 (dl_func != DL_FUNC_RESET_LINK) && (dl_func != DL_FUNC_ACK))
2454 /* get the transport layer byte */
2455 tr_ctl = tvb_get_guint8(tvb, offset);
2456 tr_seq = tr_ctl & DNP3_TR_SEQ;
2457 tr_fir = tr_ctl & DNP3_TR_FIR;
2458 tr_fin = tr_ctl & DNP3_TR_FIN;
2460 /* Add Transport Layer Tree */
2461 tc = proto_tree_add_uint_format(dnp3_tree, hf_dnp3_tr_ctl, tvb, offset, 1, tr_ctl,
2462 "Transport Layer: 0x%02x (", tr_ctl);
2463 if (tr_fir) proto_item_append_text(tc, "FIR, ");
2464 if (tr_fin) proto_item_append_text(tc, "FIN, ");
2465 proto_item_append_text(tc, "Sequence %u)", tr_seq);
2467 tr_tree = proto_item_add_subtree(tc, ett_dnp3_tr_ctl);
2468 proto_tree_add_boolean(tr_tree, hf_dnp3_tr_fin, tvb, offset, 1, tr_ctl);
2469 proto_tree_add_boolean(tr_tree, hf_dnp3_tr_fir, tvb, offset, 1, tr_ctl);
2470 proto_tree_add_item(tr_tree, hf_dnp3_tr_seq, tvb, offset, 1, FALSE);
2472 /* Allocate AL chunk tree */
2473 al_chunks = proto_tree_add_text(tr_tree, tvb, offset + 1, -1, "Application data chunks");
2474 al_tree = proto_item_add_subtree(al_chunks, ett_dnp3_al_data);
2476 /* extract the application layer data, validating the CRCs */
2478 /* XXX - check for dl_len <= 5 */
2479 data_len = dl_len - 5;
2480 tmp = g_malloc(data_len);
2483 data_offset = 1; /* skip the transport layer byte when assembling chunks */
2487 const guint8 *chk_ptr;
2488 guint16 calc_crc, act_crc;
2490 chk_size = MIN(data_len, AL_MAX_CHUNK_SIZE);
2491 chk_ptr = tvb_get_ptr(tvb, offset, chk_size);
2492 memcpy(tmp_ptr, chk_ptr + data_offset, chk_size - data_offset);
2493 calc_crc = calculateCRC(chk_ptr, chk_size);
2495 tmp_ptr += chk_size - data_offset;
2496 act_crc = tvb_get_letohs(tvb, offset);
2498 crc_OK = calc_crc == act_crc;
2501 proto_tree_add_text(al_tree, tvb, offset - (chk_size + 2), chk_size + 2,
2502 "Application Chunk %u Len: %u CRC 0x%04x",
2503 i, chk_size, act_crc);
2504 data_len -= chk_size;
2508 proto_tree_add_text(al_tree, tvb, offset - (chk_size + 2), chk_size + 2,
2509 "Application Chunk %u Len: %u Bad CRC got 0x%04x expected 0x%04x",
2510 i, chk_size, act_crc, calc_crc);
2515 data_offset = 0; /* copy all of the rest of the chunks */
2518 /* if all crc OK, set up new tvb */
2521 al_tvb = tvb_new_child_real_data(tvb, tmp, (guint) (tmp_ptr-tmp), (gint) (tmp_ptr-tmp));
2522 tvb_set_free_cb(al_tvb, g_free);
2524 /* Check for fragmented packet */
2525 save_fragmented = pinfo->fragmented;
2526 if (! (tr_fir && tr_fin))
2528 /* A fragmented packet */
2529 pinfo->fragmented = TRUE;
2531 /* Look up the conversation to get the fragment reassembly id */
2532 conversation = find_or_create_conversation(pinfo);
2534 conv_data_ptr = (dnp3_conv_t*)conversation_get_proto_data(conversation, proto_dnp3);
2536 if (conv_data_ptr == NULL) {
2537 /* New data structure required */
2538 conv_data_ptr = se_alloc(sizeof(dnp3_conv_t));
2540 /*** Increment static global fragment reassembly id ***/
2541 conv_data_ptr->conv_seq_number = seq_number++;
2543 conversation_add_proto_data(conversation, proto_dnp3, (void *)conv_data_ptr);
2545 conv_seq_number = conv_data_ptr->conv_seq_number;
2549 * whatever reassembly is in progress, if any, and see
2553 frag_msg = fragment_add_seq_next(al_tvb, 0, pinfo, conv_seq_number,
2555 al_reassembled_table,
2556 tvb_reported_length(al_tvb), /* As this is a constructed tvb, all of it is ok */
2559 next_tvb = process_reassembled_data(al_tvb, 0, pinfo,
2560 "Reassembled DNP 3.0 Application Layer message", frag_msg, &dnp3_frag_items,
2561 &update_col_info, tr_tree);
2563 if (next_tvb) { /* Reassembled */
2564 /* We have the complete payload */
2565 if (check_col (pinfo->cinfo, COL_INFO))
2566 col_set_str(pinfo->cinfo, COL_INFO, "Reassembled Application Layer");
2567 col_set_fence(pinfo->cinfo, COL_INFO);
2571 /* We don't have the complete reassembled payload. */
2572 if (check_col (pinfo->cinfo, COL_INFO))
2573 col_add_fstr (pinfo->cinfo, COL_INFO,
2574 "Application Layer fragment %u", tr_seq);
2575 col_set_fence(pinfo->cinfo, COL_INFO);
2581 /* No reassembly required */
2583 add_new_data_source(pinfo, next_tvb, "DNP 3.0 Application Layer message");
2584 col_clear(pinfo->cinfo, COL_INFO);
2586 pinfo->fragmented = save_fragmented;
2590 /* CRC error - throw away the data. */
2593 proto_tree_add_text(dnp3_tree, tvb, 11, -1, "CRC failed, %u chunks", i);
2598 al_result = dissect_dnp3_al(next_tvb, pinfo, dnp3_tree);
2604 get_dnp3_message_len(packet_info *pinfo _U_, tvbuff_t *tvb, int offset)
2606 guint16 message_len; /* need 16 bits as total can exceed 255 */
2607 guint16 data_crc; /* No. of user data CRC bytes */
2608 message_len = tvb_get_guint8(tvb, offset + 2);
2610 /* Add in 2 bytes for header start octets,
2611 1 byte for len itself,
2612 2 bytes for header CRC
2613 data CRC bytes (2 bytes per 16 bytes of data
2616 data_crc = (guint16)(ceil((message_len - 5) / 16.0)) * 2;
2617 message_len += 2 + 1 + 2 + data_crc;
2622 dissect_dnp3_tcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
2624 gint length = tvb_length(tvb);
2626 /* Check for a dnp packet. It should begin with 0x0564 */
2627 if(length < DNP_HDR_LEN || tvb_get_ntohs(tvb, 0) != 0x0564) {
2628 /* Not a DNP 3.0 packet, just happened to use the same port */
2632 tcp_dissect_pdus(tvb, pinfo, tree, TRUE, DNP_HDR_LEN,
2633 get_dnp3_message_len, dissect_dnp3_message);
2635 return tvb_length(tvb);
2639 dissect_dnp3_udp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
2641 gint length = tvb_length(tvb);
2642 /* Check for a dnp packet. It should begin with 0x0564 */
2643 if(length < DNP_HDR_LEN || tvb_get_ntohs(tvb, 0) != 0x0564) {
2644 /* Not a DNP 3.0 packet, just happened to use the same port */
2648 dissect_dnp3_message(tvb, pinfo, tree);
2653 al_defragment_init(void)
2655 fragment_table_init(&al_fragment_table);
2656 reassembled_table_init(&al_reassembled_table);
2659 /* Register the protocol with Wireshark */
2662 proto_register_dnp3(void)
2665 /* Setup list of header fields */
2666 static hf_register_info hf[] = {
2668 { "Start Bytes", "dnp3.start", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL }},
2671 { "Length", "dnp3.len", FT_UINT8, BASE_DEC, NULL, 0x0, "Frame Data Length", HFILL }},
2674 { "Control", "dnp3.ctl", FT_UINT8, BASE_HEX, NULL, 0x0, "Frame Control Byte", HFILL }},
2676 { &hf_dnp3_ctl_prifunc,
2677 { "Control Function Code", "dnp3.ctl.prifunc", FT_UINT8, BASE_DEC,
2678 VALS(dnp3_ctl_func_pri_vals), DNP3_CTL_FUNC, "Frame Control Function Code", HFILL }},
2680 { &hf_dnp3_ctl_secfunc,
2681 { "Control Function Code", "dnp3.ctl.secfunc", FT_UINT8, BASE_DEC,
2682 VALS(dnp3_ctl_func_sec_vals), DNP3_CTL_FUNC, "Frame Control Function Code", HFILL }},
2685 { "Direction", "dnp3.ctl.dir", FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_CTL_DIR, NULL, HFILL }},
2688 { "Primary", "dnp3.ctl.prm", FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_CTL_PRM, NULL, HFILL }},
2691 { "Frame Count Bit", "dnp3.ctl.fcb", FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_CTL_FCB, NULL, HFILL }},
2694 { "Frame Count Valid", "dnp3.ctl.fcv", FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_CTL_FCV, NULL, HFILL }},
2697 { "Data Flow Control", "dnp3.ctl.dfc", FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_CTL_DFC, NULL, HFILL }},
2700 { "Destination", "dnp3.dst", FT_UINT16, BASE_DEC, NULL, 0x0, "Destination Address", HFILL }},
2703 { "Source", "dnp3.src", FT_UINT16, BASE_DEC, NULL, 0x0, "Source Address", HFILL }},
2706 { "CRC", "dnp3.hdr.CRC", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL }},
2708 { &hf_dnp_hdr_CRC_bad,
2709 { "Bad CRC", "dnp3.hdr.CRC_bad", FT_BOOLEAN, BASE_NONE, NULL, 0x0, NULL, HFILL }},
2712 { "Transport Control", "dnp3.tr.ctl", FT_UINT8, BASE_HEX, NULL, 0x0, "Transport Layer Control Byte", HFILL }},
2715 { "Final", "dnp3.tr.fin", FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_TR_FIN, NULL, HFILL }},
2718 { "First", "dnp3.tr.fir", FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_TR_FIR, NULL, HFILL }},
2721 { "Sequence", "dnp3.tr.seq", FT_UINT8, BASE_DEC, NULL, DNP3_TR_SEQ, "Frame Sequence Number", HFILL }},
2724 { "Application Control", "dnp3.al.ctl", FT_UINT8, BASE_HEX, NULL, 0x0, "Application Layer Control Byte", HFILL }},
2727 { "First", "dnp3.al.fir", FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_AL_FIR, NULL, HFILL }},
2730 { "Final", "dnp3.al.fin", FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_AL_FIN, NULL, HFILL }},
2733 { "Confirm", "dnp3.al.con", FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_AL_CON, NULL, HFILL }},
2736 { "Unsolicited", "dnp3.al.uns", FT_BOOLEAN, 8, TFS(&tfs_set_notset), DNP3_AL_UNS, NULL, HFILL }},
2739 { "Sequence", "dnp3.al.seq", FT_UINT8, BASE_DEC, NULL, DNP3_AL_SEQ, "Frame Sequence Number", HFILL }},
2742 { "Application Layer Function Code", "dnp3.al.func", FT_UINT8, BASE_DEC|BASE_EXT_STRING,
2743 &dnp3_al_func_vals_ext, DNP3_AL_FUNC, "Application Function Code", HFILL }},
2746 { "Application Layer IIN bits", "dnp3.al.iin", FT_UINT16, BASE_DEC, NULL, 0x0, "Application Layer IIN", HFILL }},
2748 { &hf_dnp3_al_iin_bmsg,
2749 { "Broadcast Msg Rx", "dnp3.al.iin.bmsg", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_BMSG, NULL, HFILL }},
2751 { &hf_dnp3_al_iin_cls1d,
2752 { "Class 1 Data Available", "dnp3.al.iin.cls1d", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_CLS1D, NULL, HFILL }},
2754 { &hf_dnp3_al_iin_cls2d,
2755 { "Class 2 Data Available", "dnp3.al.iin.cls2d", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_CLS2D, NULL, HFILL }},
2757 { &hf_dnp3_al_iin_cls3d,
2758 { "Class 3 Data Available", "dnp3.al.iin.cls3d", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_CLS3D, NULL, HFILL }},
2760 { &hf_dnp3_al_iin_tsr,
2761 { "Time Sync Required", "dnp3.al.iin.tsr", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_TSR, NULL, HFILL }},
2763 { &hf_dnp3_al_iin_dol,
2764 { "Digital Outputs in Local", "dnp3.al.iin.dol", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_DOL, NULL, HFILL }},
2766 { &hf_dnp3_al_iin_dt,
2767 { "Device Trouble", "dnp3.al.iin.dt", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_DT, NULL, HFILL }},
2769 { &hf_dnp3_al_iin_rst,
2770 { "Device Restart", "dnp3.al.iin.rst", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_RST, NULL, HFILL }},
2772 { &hf_dnp3_al_iin_obju,
2773 { "Requested Objects Unknown", "dnp3.al.iin.obju", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_OBJU, NULL, HFILL }},
2775 { &hf_dnp3_al_iin_pioor,
2776 { "Parameters Invalid or Out of Range", "dnp3.al.iin.pioor", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_PIOOR, NULL, HFILL }},
2778 { &hf_dnp3_al_iin_ebo,
2779 { "Event Buffer Overflow", "dnp3.al.iin.ebo", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_EBO, NULL, HFILL }},
2781 { &hf_dnp3_al_iin_oae,
2782 { "Operation Already Executing", "dnp3.al.iin.oae", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_OAE, NULL, HFILL }},
2784 { &hf_dnp3_al_iin_cc,
2785 { "Configuration Corrupt", "dnp3.al.iin.cc", FT_BOOLEAN, 16, TFS(&tfs_set_notset), AL_IIN_CC, NULL, HFILL }},
2788 { "Object", "dnp3.al.obj", FT_UINT16, BASE_HEX|BASE_EXT_STRING, &dnp3_al_obj_vals_ext, 0x0, "Application Layer Object", HFILL }},
2790 { &hf_dnp3_al_objq_index,
2791 { "Index Prefix", "dnp3.al.objq.index", FT_UINT8, BASE_DEC|BASE_EXT_STRING, &dnp3_al_objq_index_vals_ext, AL_OBJQ_INDEX, "Object Index Prefixing", HFILL }},
2793 { &hf_dnp3_al_objq_code,
2794 { "Qualifier Code", "dnp3.al.objq.code", FT_UINT8, BASE_DEC|BASE_EXT_STRING, &dnp3_al_objq_code_vals_ext, AL_OBJQ_CODE, "Object Qualifier Code", HFILL }},
2796 { &hf_dnp3_al_range_start8,
2797 { "Start (8 bit)", "dnp3.al.range.start", FT_UINT8, BASE_DEC, NULL, 0x0, "Object Start Index", HFILL }},
2799 { &hf_dnp3_al_range_stop8,
2800 { "Stop (8 bit)", "dnp3.al.range.stop", FT_UINT8, BASE_DEC, NULL, 0x0, "Object Stop Index", HFILL }},
2802 { &hf_dnp3_al_range_start16,
2803 { "Start (16 bit)", "dnp3.al.range.start", FT_UINT16, BASE_DEC, NULL, 0x0, "Object Start Index", HFILL }},
2805 { &hf_dnp3_al_range_stop16,
2806 { "Stop (16 bit)", "dnp3.al.range.stop", FT_UINT16, BASE_DEC, NULL, 0x0, "Object Stop Index", HFILL }},
2808 { &hf_dnp3_al_range_start32,
2809 { "Start (32 bit)", "dnp3.al.range.start", FT_UINT32, BASE_DEC, NULL, 0x0, "Object Start Index", HFILL }},
2811 { &hf_dnp3_al_range_stop32,
2812 { "Stop (32 bit)", "dnp3.al.range.stop", FT_UINT32, BASE_DEC, NULL, 0x0, "Object Stop Index", HFILL }},
2814 { &hf_dnp3_al_range_abs8,
2815 { "Address (8 bit)", "dnp3.al.range.abs", FT_UINT8, BASE_DEC, NULL, 0x0, "Object Absolute Address", HFILL }},
2817 { &hf_dnp3_al_range_abs16,
2818 { "Address (16 bit)", "dnp3.al.range.abs", FT_UINT16, BASE_DEC, NULL, 0x0, "Object Absolute Address", HFILL }},
2820 { &hf_dnp3_al_range_abs32,
2821 { "Address (32 bit)", "dnp3.al.range.abs", FT_UINT32, BASE_DEC, NULL, 0x0, "Object Absolute Address", HFILL }},
2823 { &hf_dnp3_al_range_quant8,
2824 { "Quantity (8 bit)", "dnp3.al.range.quantity", FT_UINT8, BASE_DEC, NULL, 0x0, "Object Quantity", HFILL }},
2826 { &hf_dnp3_al_range_quant16,
2827 { "Quantity (16 bit)", "dnp3.al.range.quantity", FT_UINT16, BASE_DEC, NULL, 0x0, "Object Quantity", HFILL }},
2829 { &hf_dnp3_al_range_quant32,
2830 { "Quantity (32 bit)", "dnp3.al.range.quantity", FT_UINT32, BASE_DEC, NULL, 0x0, "Object Quantity", HFILL }},
2832 { &hf_dnp3_al_index8,
2833 { "Index (8 bit)", "dnp3.al.index", FT_UINT8, BASE_DEC, NULL, 0x0, "Object Index", HFILL }},
2835 { &hf_dnp3_al_index16,
2836 { "Index (16 bit)", "dnp3.al.index", FT_UINT16, BASE_DEC, NULL, 0x0, "Object Index", HFILL }},
2838 { &hf_dnp3_al_index32,
2839 { "Index (32 bit)", "dnp3.al.index", FT_UINT32, BASE_DEC, NULL, 0x0, "Object Index", HFILL }},
2841 { &hf_dnp3_al_ptnum,
2842 { "Object Point Number", "dnp3.al.ptnum", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
2845 { "Value (bit)", "dnp3.al.bit", FT_BOOLEAN, 8, TFS(&tfs_on_off), 0x1, "Digital Value (1 bit)", HFILL }},
2848 { "Value (two bit)", "dnp3.al.2bit", FT_UINT8, BASE_DEC, NULL, 0x0, "Digital Value (2 bit)", HFILL }},
2850 { &hf_dnp3_al_ana16,
2851 { "Value (16 bit)", "dnp3.al.ana", FT_UINT16, BASE_DEC, NULL, 0x0, "Analog Value (16 bit)", HFILL }},
2853 { &hf_dnp3_al_ana32,
2854 { "Value (32 bit)", "dnp3.al.ana", FT_UINT32, BASE_DEC, NULL, 0x0, "Analog Value (32 bit)", HFILL }},
2856 { &hf_dnp3_al_anaflt,
2857 { "Value (float)", "dnp3.al.ana", FT_FLOAT, BASE_NONE, NULL, 0x0, "Analog Value (float)", HFILL }},
2859 { &hf_dnp3_al_anadbl,
2860 { "Value (double)", "dnp3.al.ana", FT_DOUBLE, BASE_NONE, NULL, 0x0, "Analog Value (double)", HFILL }},
2862 { &hf_dnp3_al_anaout16,
2863 { "Output Value (16 bit)", "dnp3.al.anaout", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
2865 { &hf_dnp3_al_anaout32,
2866 { "Output Value (32 bit)", "dnp3.al.anaout", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
2868 { &hf_dnp3_al_anaoutflt,
2869 { "Output Value (float)", "dnp3.al.anaout", FT_FLOAT, BASE_NONE, NULL, 0x0, NULL, HFILL }},
2871 { &hf_dnp3_al_anaoutdbl,
2872 { "Output (double)", "dnp3.al.anaout", FT_DOUBLE, BASE_NONE, NULL, 0x0, "Output Value (double)", HFILL }},
2874 { &hf_dnp3_al_cnt16,
2875 { "Counter (16 bit)", "dnp3.al.cnt", FT_UINT16, BASE_DEC, NULL, 0x0, "Counter Value (16 bit)", HFILL }},
2877 { &hf_dnp3_al_cnt32,
2878 { "Counter (32 bit)", "dnp3.al.cnt", FT_UINT32, BASE_DEC, NULL, 0x0, "Counter Value (32 bit)", HFILL }},
2880 { &hf_dnp3_al_ctrlstatus,
2881 { "Control Status", "dnp3.al.ctrlstatus", FT_UINT8, BASE_DEC|BASE_EXT_STRING, &dnp3_al_ctl_status_vals_ext, 0xff, NULL, HFILL }},
2883 { &hf_dnp3_al_biq_b0,
2884 { "Online", "dnp3.al.biq.b0", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BI_FLAG0, NULL, HFILL }},
2886 { &hf_dnp3_al_biq_b1,
2887 { "Restart", "dnp3.al.biq.b1", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BI_FLAG1, NULL, HFILL }},
2889 { &hf_dnp3_al_biq_b2,
2890 { "Comm Fail", "dnp3.al.biq.b2", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BI_FLAG2, NULL, HFILL }},
2892 { &hf_dnp3_al_biq_b3,
2893 { "Remote Force", "dnp3.al.biq.b3", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BI_FLAG3, NULL, HFILL }},
2895 { &hf_dnp3_al_biq_b4,
2896 { "Local Force", "dnp3.al.biq.b4", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BI_FLAG4, NULL, HFILL }},
2898 { &hf_dnp3_al_biq_b5,
2899 { "Chatter Filter", "dnp3.al.biq.b5", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BI_FLAG5, NULL, HFILL }},
2901 { &hf_dnp3_al_biq_b6,
2902 { "Reserved", "dnp3.al.biq.b6", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BI_FLAG6, NULL, HFILL }},
2904 { &hf_dnp3_al_biq_b7,
2905 { "Point Value", "dnp3.al.biq.b7", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BI_FLAG7, NULL, HFILL }},
2907 { &hf_dnp3_al_boq_b0,
2908 { "Online", "dnp3.al.boq.b0", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BO_FLAG0, NULL, HFILL }},
2910 { &hf_dnp3_al_boq_b1,
2911 { "Restart", "dnp3.al.boq.b1", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BO_FLAG1, NULL, HFILL }},
2913 { &hf_dnp3_al_boq_b2,
2914 { "Comm Fail", "dnp3.al.boq.b2", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BO_FLAG2, NULL, HFILL }},
2916 { &hf_dnp3_al_boq_b3,
2917 { "Remote Force", "dnp3.al.boq.b3", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BO_FLAG3, NULL, HFILL }},
2919 { &hf_dnp3_al_boq_b4,
2920 { "Local Force", "dnp3.al.boq.b4", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BO_FLAG4, NULL, HFILL }},
2922 { &hf_dnp3_al_boq_b5,
2923 { "Reserved", "dnp3.al.boq.b5", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BO_FLAG5, NULL, HFILL }},
2925 { &hf_dnp3_al_boq_b6,
2926 { "Reserved", "dnp3.al.boq.b6", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BO_FLAG6, NULL, HFILL }},
2928 { &hf_dnp3_al_boq_b7,
2929 { "Point Value", "dnp3.al.boq.b7", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_BO_FLAG7, NULL, HFILL }},
2931 { &hf_dnp3_al_ctrq_b0,
2932 { "Online", "dnp3.al.ctrq.b0", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_CTR_FLAG0, NULL, HFILL }},
2934 { &hf_dnp3_al_ctrq_b1,
2935 { "Restart", "dnp3.al.ctrq.b1", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_CTR_FLAG1, NULL, HFILL }},
2937 { &hf_dnp3_al_ctrq_b2,
2938 { "Comm Fail", "dnp3.al.ctrq.b2", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_CTR_FLAG2, NULL, HFILL }},
2940 { &hf_dnp3_al_ctrq_b3,
2941 { "Remote Force", "dnp3.al.ctrq.b3", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_CTR_FLAG3, NULL, HFILL }},
2943 { &hf_dnp3_al_ctrq_b4,
2944 { "Local Force", "dnp3.al.ctrq.b4", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_CTR_FLAG4, NULL, HFILL }},
2946 { &hf_dnp3_al_ctrq_b5,
2947 { "Roll-Over", "dnp3.al.ctrq.b5", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_CTR_FLAG5, NULL, HFILL }},
2949 { &hf_dnp3_al_ctrq_b6,
2950 { "Discontinuity", "dnp3.al.ctrq.b6", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_CTR_FLAG6, NULL, HFILL }},
2952 { &hf_dnp3_al_ctrq_b7,
2953 { "Reserved", "dnp3.al.ctrq.b7", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_CTR_FLAG7, NULL, HFILL }},
2955 { &hf_dnp3_al_aiq_b0,
2956 { "Online", "dnp3.al.aiq.b0", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AI_FLAG0, NULL, HFILL }},
2958 { &hf_dnp3_al_aiq_b1,
2959 { "Restart", "dnp3.al.aiq.b1", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AI_FLAG1, NULL, HFILL }},
2961 { &hf_dnp3_al_aiq_b2,
2962 { "Comm Fail", "dnp3.al.aiq.b2", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AI_FLAG2, NULL, HFILL }},
2964 { &hf_dnp3_al_aiq_b3,
2965 { "Remote Force", "dnp3.al.aiq.b3", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AI_FLAG3, NULL, HFILL }},
2967 { &hf_dnp3_al_aiq_b4,
2968 { "Local Force", "dnp3.al.aiq.b4", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AI_FLAG4, NULL, HFILL }},
2970 { &hf_dnp3_al_aiq_b5,
2971 { "Over-Range", "dnp3.al.aiq.b5", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AI_FLAG5, NULL, HFILL }},
2973 { &hf_dnp3_al_aiq_b6,
2974 { "Reference Check", "dnp3.al.aiq.b6", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AI_FLAG6, NULL, HFILL }},
2976 { &hf_dnp3_al_aiq_b7,
2977 { "Reserved", "dnp3.al.aiq.b7", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AI_FLAG7, NULL, HFILL }},
2979 { &hf_dnp3_al_aoq_b0,
2980 { "Online", "dnp3.al.aoq.b0", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AO_FLAG0, NULL, HFILL }},
2982 { &hf_dnp3_al_aoq_b1,
2983 { "Restart", "dnp3.al.aoq.b1", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AO_FLAG1, NULL, HFILL }},
2985 { &hf_dnp3_al_aoq_b2,
2986 { "Comm Fail", "dnp3.al.aoq.b2", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AO_FLAG2, NULL, HFILL }},
2988 { &hf_dnp3_al_aoq_b3,
2989 { "Remote Force", "dnp3.al.aoq.b3", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AO_FLAG3, NULL, HFILL }},
2991 { &hf_dnp3_al_aoq_b4,
2992 { "Local Force", "dnp3.al.aoq.b4", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AO_FLAG4, NULL, HFILL }},
2994 { &hf_dnp3_al_aoq_b5,
2995 { "Reserved", "dnp3.al.aoq.b5", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AO_FLAG5, NULL, HFILL }},
2997 { &hf_dnp3_al_aoq_b6,
2998 { "Reserved", "dnp3.al.aoq.b6", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AO_FLAG6, NULL, HFILL }},
3000 { &hf_dnp3_al_aoq_b7,
3001 { "Reserved", "dnp3.al.aoq.b7", FT_BOOLEAN, 8, TFS(&tfs_set_notset), AL_OBJ_AO_FLAG7, NULL, HFILL }},
3003 { &hf_dnp3_al_timestamp,
3004 { "Timestamp", "dnp3.al.timestamp", FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0, "Object Timestamp", HFILL }},
3006 { &hf_dnp3_al_rel_timestamp,
3007 { "Relative Timestamp", "dnp3.al.reltimestamp", FT_RELATIVE_TIME, BASE_NONE, NULL, 0, "Object Relative Timestamp", HFILL }},
3009 { &hf_dnp3_fragment,
3010 { "DNP 3.0 AL Fragment", "dnp3.al.fragment", FT_FRAMENUM, BASE_NONE, NULL, 0x0, "DNP 3.0 Application Layer Fragment", HFILL }},
3012 { &hf_dnp3_fragments,
3013 { "DNP 3.0 AL Fragments", "dnp3.al.fragments", FT_NONE, BASE_NONE, NULL, 0x0, "DNP 3.0 Application Layer Fragments", HFILL }},
3015 { &hf_dnp3_fragment_overlap,
3016 { "Fragment overlap", "dnp3.al.fragment.overlap", FT_BOOLEAN, BASE_NONE, NULL, 0x0, "Fragment overlaps with other fragments", HFILL }},
3018 { &hf_dnp3_fragment_overlap_conflict,
3019 { "Conflicting data in fragment overlap", "dnp3.al.fragment.overlap.conflict", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
3020 "Overlapping fragments contained conflicting data", HFILL }},
3022 { &hf_dnp3_fragment_multiple_tails,
3023 { "Multiple tail fragments found", "dnp3.al.fragment.multipletails", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
3024 "Several tails were found when defragmenting the packet", HFILL }},
3026 { &hf_dnp3_fragment_too_long_fragment,
3027 { "Fragment too long", "dnp3.al.fragment.toolongfragment", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
3028 "Fragment contained data past end of packet", HFILL }},
3030 { &hf_dnp3_fragment_error,
3031 { "Defragmentation error", "dnp3.al.fragment.error", FT_FRAMENUM, BASE_NONE, NULL, 0x0,
3032 "Defragmentation error due to illegal fragments", HFILL }},
3034 { &hf_dnp3_fragment_reassembled_in,
3035 { "Reassembled PDU In Frame", "dnp3.al.fragment.reassembled_in", FT_FRAMENUM, BASE_NONE, NULL, 0x0,
3036 "This PDU is reassembled in this frame", HFILL }},
3038 { &hf_dnp3_fragment_reassembled_length,
3039 { "Reassembled DNP length", "dnp3.al.fragment.reassembled.length", FT_UINT32, BASE_DEC, NULL, 0x0,
3040 "The total length of the reassembled payload", HFILL }}
3043 /* Setup protocol subtree array */
3044 static gint *ett[] = {
3054 &ett_dnp3_al_obj_qualifier,
3055 &ett_dnp3_al_obj_range,
3056 &ett_dnp3_al_objdet,
3057 &ett_dnp3_al_obj_quality,
3058 &ett_dnp3_al_obj_point,
3062 module_t *dnp3_module;
3064 /* Register protocol init routine */
3065 register_init_routine(&al_defragment_init);
3067 /* Register the protocol name and description */
3068 proto_dnp3 = proto_register_protocol("Distributed Network Protocol 3.0",
3071 /* Required function calls to register the header fields and subtrees used */
3072 proto_register_field_array(proto_dnp3, hf, array_length(hf));
3073 proto_register_subtree_array(ett, array_length(ett));
3075 dnp3_module = prefs_register_protocol(proto_dnp3, NULL);
3076 prefs_register_bool_preference(dnp3_module, "desegment",
3077 "Reassemble DNP3 messages spanning multiple TCP segments",
3078 "Whether the DNP3 dissector should reassemble messages spanning multiple TCP segments."
3079 " To use this option, you must also enable \"Allow subdissectors to reassemble TCP streams\" in the TCP protocol settings.",
3085 proto_reg_handoff_dnp3(void)
3087 dissector_handle_t dnp3_tcp_handle;
3088 dissector_handle_t dnp3_udp_handle;
3090 dnp3_tcp_handle = new_create_dissector_handle(dissect_dnp3_tcp, proto_dnp3);
3091 dnp3_udp_handle = new_create_dissector_handle(dissect_dnp3_udp, proto_dnp3);
3092 dissector_add("tcp.port", TCP_PORT_DNP, dnp3_tcp_handle);
3093 dissector_add("udp.port", UDP_PORT_DNP, dnp3_udp_handle);
3102 * indent-tabs-mode: nil
3105 * ex: set shiftwidth=2 tabstop=8 expandtab
3106 * :indentSize=2:tabSize=8:noTabs=true: