1 /* packet-m3ua.c
2 * Routines for MTP3 User Adaptation Layer dissection
3 * It is hopefully (needs testing) compliant to
4 * https://tools.ietf.org/html/draft-ietf-sigtran-m3ua-05 (expired)
5 * https://tools.ietf.org/html/draft-ietf-sigtran-m3ua-06 (expired)
6 * https://tools.ietf.org/html/draft-ietf-sigtran-m3ua-07 (expired)
7 * https://tools.ietf.org/html/rfc3332
8 * https://datatracker.ietf.org/doc/rfc4666/
9 *
10 * Copyright 2000, 2001, 2002, 2003, 2004 Michael Tuexen <tuexen [AT] fh-muenster.de>
11 *
12 * Wireshark - Network traffic analyzer
13 * By Gerald Combs <gerald@wireshark.org>
14 * Copyright 1998 Gerald Combs
15 *
16 * Copied from README.developer
17 *
18 * SPDX-License-Identifier: GPL-2.0-or-later
19 */
20
21 #include "config.h"
22
23 #include <epan/packet.h>
24 #include <epan/prefs.h>
25 #include <epan/address_types.h>
26 #include <epan/sctpppids.h>
27 #include <wsutil/str_util.h>
28 #include "packet-mtp3.h"
29 #include "packet-sccp.h"
30 #include "packet-frame.h"
31 #include "packet-q708.h"
32 #include <epan/tap.h>
33
34 void proto_register_m3ua(void);
35 void proto_reg_handoff_m3ua(void);
36
37 static gint m3ua_pref_mtp3_standard;
38
39 #define SCTP_PORT_M3UA 2905
40 #define ADD_PADDING(x) ((((x) + 3) >> 2) << 2)
41
42 #define VERSION_LENGTH 1
43 #define RESERVED_LENGTH 1
44 #define MESSAGE_CLASS_LENGTH 1
45 #define MESSAGE_TYPE_LENGTH 1
46 #define MESSAGE_LENGTH_LENGTH 4
47 #define COMMON_HEADER_LENGTH (VERSION_LENGTH + RESERVED_LENGTH + MESSAGE_CLASS_LENGTH + \
48 MESSAGE_TYPE_LENGTH + MESSAGE_LENGTH_LENGTH)
49
50 #define VERSION_OFFSET 0
51 #define RESERVED_OFFSET (VERSION_OFFSET + VERSION_LENGTH)
52 #define MESSAGE_CLASS_OFFSET (RESERVED_OFFSET + RESERVED_LENGTH)
53 #define MESSAGE_TYPE_OFFSET (MESSAGE_CLASS_OFFSET + MESSAGE_CLASS_LENGTH)
54 #define MESSAGE_LENGTH_OFFSET (MESSAGE_TYPE_OFFSET + MESSAGE_TYPE_LENGTH)
55
56 #define PARAMETER_TAG_LENGTH 2
57 #define PARAMETER_LENGTH_LENGTH 2
58 #define PARAMETER_HEADER_LENGTH (PARAMETER_TAG_LENGTH + PARAMETER_LENGTH_LENGTH)
59
60 #define PARAMETER_TAG_OFFSET 0
61 #define PARAMETER_LENGTH_OFFSET (PARAMETER_TAG_OFFSET + PARAMETER_TAG_LENGTH)
62 #define PARAMETER_VALUE_OFFSET (PARAMETER_LENGTH_OFFSET + PARAMETER_LENGTH_LENGTH)
63 #define PARAMETER_HEADER_OFFSET PARAMETER_TAG_OFFSET
64
65 #define PROTOCOL_VERSION_RELEASE_1 1
66
67 static const value_string protocol_version_values[] = {
68 { PROTOCOL_VERSION_RELEASE_1, "Release 1" },
69 { 0, NULL } };
70
71 #define MESSAGE_CLASS_MGMT_MESSAGE 0
72 #define MESSAGE_CLASS_TFER_MESSAGE 1
73 #define MESSAGE_CLASS_SSNM_MESSAGE 2
74 #define MESSAGE_CLASS_ASPSM_MESSAGE 3
75 #define MESSAGE_CLASS_ASPTM_MESSAGE 4
76 #define MESSAGE_CLASS_RKM_MESSAGE 9
77
78 static const value_string message_class_values[] = {
79 { MESSAGE_CLASS_MGMT_MESSAGE, "Management messages" },
80 { MESSAGE_CLASS_TFER_MESSAGE, "Transfer messages" },
81 { MESSAGE_CLASS_SSNM_MESSAGE, "SS7 signalling network management messages" },
82 { MESSAGE_CLASS_ASPSM_MESSAGE, "ASP state maintenance messages" },
83 { MESSAGE_CLASS_ASPTM_MESSAGE, "ASP traffic maintenance messages" },
84 { MESSAGE_CLASS_RKM_MESSAGE, "Routing key management messages" },
85 { 0, NULL } };
86
87 static const value_string v5_message_class_values[] = {
88 { MESSAGE_CLASS_MGMT_MESSAGE, "Management messages" },
89 { MESSAGE_CLASS_TFER_MESSAGE, "Transfer messages" },
90 { MESSAGE_CLASS_SSNM_MESSAGE, "SS7 signalling network management messages" },
91 { MESSAGE_CLASS_ASPSM_MESSAGE, "ASP state maintenance messages" },
92 { MESSAGE_CLASS_ASPTM_MESSAGE, "ASP traffic maintenance messages" },
93 { 0, NULL } };
94
95 #define MESSAGE_TYPE_ERR 0
96 #define MESSAGE_TYPE_NTFY 1
97
98 #define MESSAGE_TYPE_DATA 1
99
100 #define MESSAGE_TYPE_DUNA 1
101 #define MESSAGE_TYPE_DAVA 2
102 #define MESSAGE_TYPE_DAUD 3
103 #define MESSAGE_TYPE_SCON 4
104 #define MESSAGE_TYPE_DUPU 5
105 #define MESSAGE_TYPE_DRST 6
106
107 #define MESSAGE_TYPE_UP 1
108 #define MESSAGE_TYPE_DOWN 2
109 #define MESSAGE_TYPE_BEAT 3
110 #define MESSAGE_TYPE_UP_ACK 4
111 #define MESSAGE_TYPE_DOWN_ACK 5
112 #define MESSAGE_TYPE_BEAT_ACK 6
113
114 #define MESSAGE_TYPE_ACTIVE 1
115 #define MESSAGE_TYPE_INACTIVE 2
116 #define MESSAGE_TYPE_ACTIVE_ACK 3
117 #define MESSAGE_TYPE_INACTIVE_ACK 4
118
119 #define MESSAGE_TYPE_REG_REQ 1
120 #define MESSAGE_TYPE_REG_RSP 2
121 #define MESSAGE_TYPE_DEREG_REQ 3
122 #define MESSAGE_TYPE_DEREG_RSP 4
123
124 static const value_string v5_message_class_type_values[] = {
125 { MESSAGE_CLASS_MGMT_MESSAGE * 256 + MESSAGE_TYPE_ERR, "Error (ERR)" },
126 { MESSAGE_CLASS_MGMT_MESSAGE * 256 + MESSAGE_TYPE_NTFY, "Notify (NTFY)" },
127 { MESSAGE_CLASS_TFER_MESSAGE * 256 + MESSAGE_TYPE_DATA, "Payload data (DATA)" },
128 { MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_DUNA, "Destination unavailable (DUNA)" },
129 { MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_DAVA, "Destination available (DAVA)" },
130 { MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_DAUD, "Destination state audit (DAUD)" },
131 { MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_SCON, "SS7 Network congestion state (SCON)" },
132 { MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_DUPU, "Destination userpart unavailable (DUPU)" },
133 { MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_UP, "ASP up (UP)" },
134 { MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_DOWN, "ASP down (DOWN)" },
135 { MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_BEAT, "Heartbeat (BEAT)" },
136 { MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_UP_ACK, "ASP up ack (UP ACK)" },
137 { MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_DOWN_ACK, "ASP down ack (DOWN ACK)" },
138 { MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_BEAT_ACK, "Heartbeat ack (BEAT ACK)" },
139 { MESSAGE_CLASS_ASPTM_MESSAGE * 256 + MESSAGE_TYPE_ACTIVE , "ASP active (ACTIVE)" },
140 { MESSAGE_CLASS_ASPTM_MESSAGE * 256 + MESSAGE_TYPE_INACTIVE , "ASP inactive (INACTIVE)" },
141 { MESSAGE_CLASS_ASPTM_MESSAGE * 256 + MESSAGE_TYPE_ACTIVE_ACK , "ASP active ack (ACTIVE ACK)" },
142 { MESSAGE_CLASS_ASPTM_MESSAGE * 256 + MESSAGE_TYPE_INACTIVE_ACK , "ASP inactive ack (INACTIVE ACK)" },
143 { 0, NULL } };
144
145 static const value_string message_class_type_values[] = {
146 { MESSAGE_CLASS_MGMT_MESSAGE * 256 + MESSAGE_TYPE_ERR, "Error (ERR)" },
147 { MESSAGE_CLASS_MGMT_MESSAGE * 256 + MESSAGE_TYPE_NTFY, "Notify (NTFY)" },
148 { MESSAGE_CLASS_TFER_MESSAGE * 256 + MESSAGE_TYPE_DATA, "Payload data (DATA)" },
149 { MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_DUNA, "Destination unavailable (DUNA)" },
150 { MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_DAVA, "Destination available (DAVA)" },
151 { MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_DAUD, "Destination state audit (DAUD)" },
152 { MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_SCON, "SS7 Network congestion state (SCON)" },
153 { MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_DUPU, "Destination userpart unavailable (DUPU)" },
154 { MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_DRST, "Destination Restricted (DRST)" },
155 { MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_UP, "ASP up (ASPUP)" },
156 { MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_DOWN, "ASP down (ASPDN)" },
157 { MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_BEAT, "Heartbeat (BEAT)" },
158 { MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_UP_ACK, "ASP up ack (ASPUP_ACK)" },
159 { MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_DOWN_ACK, "ASP down ack (ASPDN_ACK)" },
160 { MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_BEAT_ACK, "Heartbeat ack (BEAT_ACK)" },
161 { MESSAGE_CLASS_ASPTM_MESSAGE * 256 + MESSAGE_TYPE_ACTIVE , "ASP active (ASPAC)" },
162 { MESSAGE_CLASS_ASPTM_MESSAGE * 256 + MESSAGE_TYPE_INACTIVE , "ASP inactive (ASPIA)" },
163 { MESSAGE_CLASS_ASPTM_MESSAGE * 256 + MESSAGE_TYPE_ACTIVE_ACK , "ASP active ack (ASPAC_ACK)" },
164 { MESSAGE_CLASS_ASPTM_MESSAGE * 256 + MESSAGE_TYPE_INACTIVE_ACK , "ASP inactive ack (ASPIA_ACK)" },
165 { MESSAGE_CLASS_RKM_MESSAGE * 256 + MESSAGE_TYPE_REG_REQ , "Registration request (REG_REQ)" },
166 { MESSAGE_CLASS_RKM_MESSAGE * 256 + MESSAGE_TYPE_REG_RSP , "Registration response (REG_RSP)" },
167 { MESSAGE_CLASS_RKM_MESSAGE * 256 + MESSAGE_TYPE_DEREG_REQ , "Deregistration request (DEREG_REQ)" },
168 { MESSAGE_CLASS_RKM_MESSAGE * 256 + MESSAGE_TYPE_DEREG_RSP , "Deregistration response (DEREG_RSP)" },
169 { 0, NULL } };
170
171 static const value_string v5_message_class_type_acro_values[] = {
172 { MESSAGE_CLASS_MGMT_MESSAGE * 256 + MESSAGE_TYPE_ERR, "ERR" },
173 { MESSAGE_CLASS_MGMT_MESSAGE * 256 + MESSAGE_TYPE_NTFY, "NTFY" },
174 { MESSAGE_CLASS_TFER_MESSAGE * 256 + MESSAGE_TYPE_DATA, "DATA" },
175 { MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_DUNA, "DUNA" },
176 { MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_DAVA, "DAVA" },
177 { MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_DAUD, "DAUD" },
178 { MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_SCON, "SCON" },
179 { MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_DUPU, "DUPU" },
180 { MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_UP, "ASP_UP" },
181 { MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_DOWN, "ASP_DOWN" },
182 { MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_BEAT, "BEAT" },
183 { MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_UP_ACK, "ASP_UP_ACK" },
184 { MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_DOWN_ACK, "ASP_DOWN_ACK" },
185 { MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_BEAT_ACK, "BEAT_ACK" },
186 { MESSAGE_CLASS_ASPTM_MESSAGE * 256 + MESSAGE_TYPE_ACTIVE , "ASP_ACTIVE" },
187 { MESSAGE_CLASS_ASPTM_MESSAGE * 256 + MESSAGE_TYPE_INACTIVE , "ASP_INACTIVE" },
188 { MESSAGE_CLASS_ASPTM_MESSAGE * 256 + MESSAGE_TYPE_ACTIVE_ACK , "ASP_ACTIVE_ACK" },
189 { MESSAGE_CLASS_ASPTM_MESSAGE * 256 + MESSAGE_TYPE_INACTIVE_ACK , "ASP_INACTIVE_ACK" },
190 { 0, NULL } };
191
192 static const value_string message_class_type_acro_values[] = {
193 { MESSAGE_CLASS_MGMT_MESSAGE * 256 + MESSAGE_TYPE_ERR, "ERR" },
194 { MESSAGE_CLASS_MGMT_MESSAGE * 256 + MESSAGE_TYPE_NTFY, "NTFY" },
195 { MESSAGE_CLASS_TFER_MESSAGE * 256 + MESSAGE_TYPE_DATA, "DATA" },
196 { MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_DUNA, "DUNA" },
197 { MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_DAVA, "DAVA" },
198 { MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_DAUD, "DAUD" },
199 { MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_SCON, "SCON" },
200 { MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_DUPU, "DUPU" },
201 { MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_DRST, "DRST" },
202 { MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_UP, "ASPUP" },
203 { MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_DOWN, "ASPDN" },
204 { MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_BEAT, "BEAT" },
205 { MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_UP_ACK, "ASPUP_ACK" },
206 { MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_DOWN_ACK, "ASPDN_ACK" },
207 { MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_BEAT_ACK, "BEAT_ACK" },
208 { MESSAGE_CLASS_ASPTM_MESSAGE * 256 + MESSAGE_TYPE_ACTIVE , "ASPAC" },
209 { MESSAGE_CLASS_ASPTM_MESSAGE * 256 + MESSAGE_TYPE_INACTIVE , "ASPIA" },
210 { MESSAGE_CLASS_ASPTM_MESSAGE * 256 + MESSAGE_TYPE_ACTIVE_ACK , "ASPAC_ACK" },
211 { MESSAGE_CLASS_ASPTM_MESSAGE * 256 + MESSAGE_TYPE_INACTIVE_ACK , "ASPIA_ACK" },
212 { MESSAGE_CLASS_RKM_MESSAGE * 256 + MESSAGE_TYPE_REG_REQ , "REG_REQ" },
213 { MESSAGE_CLASS_RKM_MESSAGE * 256 + MESSAGE_TYPE_REG_RSP , "REG_RSP" },
214 { MESSAGE_CLASS_RKM_MESSAGE * 256 + MESSAGE_TYPE_DEREG_REQ , "DEREG_REQ" },
215 { MESSAGE_CLASS_RKM_MESSAGE * 256 + MESSAGE_TYPE_DEREG_RSP , "DEREG_RSP" },
216 { 0, NULL } };
217
218 /* Initialize the protocol and registered fields */
219 static int proto_m3ua = -1;
220 static int hf_version = -1;
221 static int hf_reserved = -1;
222 static int hf_message_class = -1;
223 static int hf_v5_message_class = -1;
224 static int hf_message_type = -1;
225 static int hf_message_length = -1;
226 static int hf_v5_parameter_tag = -1;
227 static int hf_v6_parameter_tag = -1;
228 static int hf_v7_parameter_tag = -1;
229 static int hf_parameter_tag = -1;
230 static int hf_parameter_length = -1;
231 static int hf_parameter_value = -1;
232 static int hf_parameter_padding = -1;
233 /* static int hf_parameter_trailer = -1; */
234 static int hf_network_appearance = -1;
235 static int hf_info_string = -1;
236 static int hf_routing_context = -1;
237 static int hf_diagnostic_information = -1;
238 static int hf_heartbeat_data = -1;
239 static int hf_v5_error_code = -1;
240 static int hf_v6_error_code = -1;
241 static int hf_v7_error_code = -1;
242 static int hf_error_code = -1;
243 static int hf_status_type = -1;
244 static int hf_status_info = -1;
245 static int hf_asp_identifier = -1;
246 static int hf_affected_point_code_mask = -1;
247 static int hf_affected_point_code_pc = -1;
248 static int hf_cause = -1;
249 static int hf_user = -1;
250 static int hf_reason = -1;
251 static int hf_v5_traffic_mode_type = -1;
252 static int hf_v6_traffic_mode_type = -1;
253 static int hf_v7_traffic_mode_type = -1;
254 static int hf_traffic_mode_type = -1;
255 static int hf_congestion_reserved = -1;
256 static int hf_congestion_level = -1;
257 static int hf_concerned_dest_reserved = -1;
258 static int hf_concerned_dest_pc = -1;
259 static int hf_local_rk_identifier = -1;
260 static int hf_dpc_mask = -1;
261 static int hf_dpc_pc = -1;
262 static int hf_si = -1;
263 static int hf_ssn = -1;
264 static int hf_opc_list_mask = -1;
265 static int hf_opc_list_pc = -1;
266 static int hf_cic_range_mask = -1;
267 static int hf_cic_range_pc = -1;
268 static int hf_cic_range_upper = -1;
269 static int hf_cic_range_lower = -1;
270 static int hf_protocol_data_opc = -1;
271 static int hf_protocol_data_dpc = -1;
272 static int hf_protocol_data_mtp3_opc = -1;
273 static int hf_protocol_data_mtp3_dpc = -1;
274 static int hf_protocol_data_mtp3_pc = -1;
275 static int hf_protocol_data_si = -1;
276 static int hf_protocol_data_ni = -1;
277 static int hf_protocol_data_mtp3_ni = -1;
278 static int hf_protocol_data_mp = -1;
279 static int hf_protocol_data_sls = -1;
280 static int hf_protocol_data_mtp3_sls = -1;
281 static int hf_correlation_identifier = -1;
282 static int hf_registration_status = -1;
283 static int hf_deregistration_status = -1;
284 static int hf_registration_result_identifier = -1;
285 static int hf_registration_result_status = -1;
286 static int hf_registration_result_context = -1;
287 static int hf_v6_deregistration_result_status = -1;
288 static int hf_v6_deregistration_result_context = -1;
289 static int hf_li = -1;
290 static int hf_heuristic_standard = -1;
291
292 static int m3ua_tap = -1;
293
294 /* Initialize the subtree pointers */
295 static gint ett_m3ua = -1;
296 static gint ett_parameter = -1;
297 static gint ett_mtp3_equiv = -1;
298 static gint ett_q708_opc = -1;
299 static gint ett_q708_dpc = -1;
300
301 static module_t *m3ua_module;
302 static dissector_handle_t mtp3_handle;
303 static dissector_handle_t m3ua_handle;
304 static dissector_table_t si_dissector_table;
305
306 static int ss7pc_address_type = -1;
307
308 /* stuff for supporting multiple versions */
309 typedef enum {
310 M3UA_V5,
311 M3UA_V6,
312 M3UA_V7,
313 M3UA_RFC
314 } Version_Type;
315
316 static gint version = M3UA_RFC;
317
318
319
320 static void
321 dissect_parameters(tvbuff_t *, packet_info *, proto_tree *, proto_tree *);
322
323 static void
dissect_v5_common_header(tvbuff_t * common_header_tvb,packet_info * pinfo,proto_tree * m3ua_tree)324 dissect_v5_common_header(tvbuff_t *common_header_tvb, packet_info *pinfo, proto_tree *m3ua_tree)
325 {
326 guint8 message_class, message_type;
327
328 /* Extract the common header */
329 message_class = tvb_get_guint8(common_header_tvb, MESSAGE_CLASS_OFFSET);
330 message_type = tvb_get_guint8(common_header_tvb, MESSAGE_TYPE_OFFSET);
331
332 col_add_fstr(pinfo->cinfo, COL_INFO, "%s ", val_to_str_const(message_class * 256 + message_type, v5_message_class_type_acro_values, "reserved"));
333
334 if (m3ua_tree) {
335 /* add the components of the common header to the protocol tree */
336 proto_tree_add_item(m3ua_tree, hf_version, common_header_tvb, VERSION_OFFSET, VERSION_LENGTH, ENC_BIG_ENDIAN);
337 proto_tree_add_item(m3ua_tree, hf_reserved, common_header_tvb, RESERVED_OFFSET, RESERVED_LENGTH, ENC_BIG_ENDIAN);
338 proto_tree_add_item(m3ua_tree, hf_v5_message_class, common_header_tvb, MESSAGE_CLASS_OFFSET, MESSAGE_CLASS_LENGTH, ENC_BIG_ENDIAN);
339 proto_tree_add_uint_format_value(m3ua_tree, hf_message_type, common_header_tvb, MESSAGE_TYPE_OFFSET, MESSAGE_TYPE_LENGTH, message_type,
340 "%s (%u)", val_to_str_const(message_class * 256 + message_type, v5_message_class_type_values, "reserved"), message_type);
341 proto_tree_add_item(m3ua_tree, hf_message_length, common_header_tvb, MESSAGE_LENGTH_OFFSET, MESSAGE_LENGTH_LENGTH, ENC_BIG_ENDIAN);
342 }
343 }
344
345 static void
dissect_common_header(tvbuff_t * common_header_tvb,packet_info * pinfo,proto_tree * m3ua_tree)346 dissect_common_header(tvbuff_t *common_header_tvb, packet_info *pinfo, proto_tree *m3ua_tree)
347 {
348 guint8 message_class, message_type;
349
350 /* Extract the common header */
351 message_class = tvb_get_guint8(common_header_tvb, MESSAGE_CLASS_OFFSET);
352 message_type = tvb_get_guint8(common_header_tvb, MESSAGE_TYPE_OFFSET);
353
354 col_add_fstr(pinfo->cinfo, COL_INFO,"%s ", val_to_str_const(message_class * 256 + message_type, message_class_type_acro_values, "reserved"));
355
356 if (m3ua_tree) {
357 /* add the components of the common header to the protocol tree */
358 proto_tree_add_item(m3ua_tree, hf_version, common_header_tvb, VERSION_OFFSET, VERSION_LENGTH, ENC_BIG_ENDIAN);
359 proto_tree_add_item(m3ua_tree, hf_reserved, common_header_tvb, RESERVED_OFFSET, RESERVED_LENGTH, ENC_BIG_ENDIAN);
360 proto_tree_add_item(m3ua_tree, hf_message_class, common_header_tvb, MESSAGE_CLASS_OFFSET, MESSAGE_CLASS_LENGTH, ENC_BIG_ENDIAN);
361 proto_tree_add_uint_format_value(m3ua_tree, hf_message_type, common_header_tvb, MESSAGE_TYPE_OFFSET, MESSAGE_TYPE_LENGTH, message_type,
362 "%s (%u)", val_to_str_const(message_class * 256 + message_type, message_class_type_values, "reserved"), message_type);
363 proto_tree_add_item(m3ua_tree, hf_message_length, common_header_tvb, MESSAGE_LENGTH_OFFSET, MESSAGE_LENGTH_LENGTH, ENC_BIG_ENDIAN);
364 }
365 }
366
367 #define NETWORK_APPEARANCE_LENGTH 4
368 #define NETWORK_APPEARANCE_OFFSET PARAMETER_VALUE_OFFSET
369
370 static void
dissect_network_appearance_parameter(tvbuff_t * parameter_tvb,proto_tree * parameter_tree,proto_item * parameter_item)371 dissect_network_appearance_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
372 {
373 proto_tree_add_item(parameter_tree, hf_network_appearance, parameter_tvb, NETWORK_APPEARANCE_OFFSET, NETWORK_APPEARANCE_LENGTH, ENC_BIG_ENDIAN);
374 proto_item_append_text(parameter_item, " (%u)", tvb_get_ntohl(parameter_tvb, NETWORK_APPEARANCE_OFFSET));
375 }
376
377 #define V5_PROTOCOL_DATA_OFFSET PARAMETER_VALUE_OFFSET
378
379 static void
dissect_v5_protocol_data_parameter(tvbuff_t * parameter_tvb,packet_info * pinfo,proto_tree * tree,proto_item * parameter_item)380 dissect_v5_protocol_data_parameter(tvbuff_t *parameter_tvb, packet_info *pinfo, proto_tree *tree, proto_item *parameter_item)
381 {
382 guint16 length, protocol_data_length;
383 tvbuff_t *payload_tvb;
384
385 length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET);
386 protocol_data_length = length - PARAMETER_HEADER_LENGTH;
387 payload_tvb = tvb_new_subset_length(parameter_tvb, V5_PROTOCOL_DATA_OFFSET, protocol_data_length);
388 proto_item_append_text(parameter_item, " (SS7 message of %u byte%s)", protocol_data_length, plurality(protocol_data_length, "", "s"));
389 proto_item_set_len(parameter_item, PARAMETER_HEADER_LENGTH);
390 call_dissector(mtp3_handle, payload_tvb, pinfo, tree);
391 }
392
393 #define INFO_STRING_OFFSET PARAMETER_VALUE_OFFSET
394
395 static void
dissect_info_string_parameter(tvbuff_t * parameter_tvb,proto_tree * parameter_tree,proto_item * parameter_item)396 dissect_info_string_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
397 {
398 guint16 info_string_length;
399
400 info_string_length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH;
401 proto_tree_add_item(parameter_tree, hf_info_string, parameter_tvb, INFO_STRING_OFFSET, info_string_length, ENC_ASCII|ENC_NA);
402 proto_item_append_text(parameter_item, " (%.*s)", info_string_length,
403 tvb_format_text(wmem_packet_scope(), parameter_tvb, INFO_STRING_OFFSET, info_string_length));
404 }
405
406 #define AFFECTED_MASK_LENGTH 1
407 #define AFFECTED_DPC_LENGTH 3
408 #define AFFECTED_DESTINATION_LENGTH (AFFECTED_MASK_LENGTH + AFFECTED_DPC_LENGTH)
409
410 #define AFFECTED_MASK_OFFSET 0
411 #define AFFECTED_DPC_OFFSET 1
412
413 static void
dissect_affected_destinations_parameter(tvbuff_t * parameter_tvb,proto_tree * parameter_tree,proto_item * parameter_item)414 dissect_affected_destinations_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
415 {
416 guint16 number_of_destinations, destination_number;
417 gint destination_offset;
418 proto_item *item;
419
420 number_of_destinations = (tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH) >> 2;
421 destination_offset = PARAMETER_VALUE_OFFSET;
422 for(destination_number=0; destination_number < number_of_destinations; destination_number++) {
423 proto_tree_add_item(parameter_tree, hf_affected_point_code_mask, parameter_tvb, destination_offset + AFFECTED_MASK_OFFSET, AFFECTED_MASK_LENGTH, ENC_BIG_ENDIAN);
424 item = proto_tree_add_item(parameter_tree, hf_affected_point_code_pc, parameter_tvb, destination_offset + AFFECTED_DPC_OFFSET, AFFECTED_DPC_LENGTH, ENC_BIG_ENDIAN);
425 if (mtp3_pc_structured())
426 proto_item_append_text(item, " (%s)", mtp3_pc_to_str(tvb_get_ntoh24(parameter_tvb, destination_offset + AFFECTED_DPC_OFFSET)));
427 destination_offset += AFFECTED_DESTINATION_LENGTH;
428 }
429 proto_item_append_text(parameter_item, " (%u destination%s)", number_of_destinations, plurality(number_of_destinations, "", "s"));
430 }
431
432 #define ROUTING_CONTEXT_LENGTH 4
433
434 static void
dissect_routing_context_parameter(tvbuff_t * parameter_tvb,proto_tree * parameter_tree,proto_item * parameter_item)435 dissect_routing_context_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
436 {
437 guint16 number_of_contexts, context_number;
438 gint context_offset;
439
440 number_of_contexts = (tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH) >> 2;
441 context_offset = PARAMETER_VALUE_OFFSET;
442 for(context_number=0; context_number < number_of_contexts; context_number++) {
443 proto_tree_add_item(parameter_tree, hf_routing_context, parameter_tvb, context_offset, ROUTING_CONTEXT_LENGTH, ENC_BIG_ENDIAN);
444 context_offset += ROUTING_CONTEXT_LENGTH;
445 };
446 proto_item_append_text(parameter_item, " (%u context%s)", number_of_contexts, plurality(number_of_contexts, "", "s"));
447 }
448
449 #define DIAGNOSTIC_INFO_OFFSET PARAMETER_VALUE_OFFSET
450
451 static void
dissect_diagnostic_information_parameter(tvbuff_t * parameter_tvb,proto_tree * parameter_tree,proto_item * parameter_item)452 dissect_diagnostic_information_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
453 {
454 guint16 diag_info_length;
455
456 diag_info_length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH;
457 proto_tree_add_item(parameter_tree, hf_diagnostic_information, parameter_tvb, DIAGNOSTIC_INFO_OFFSET, diag_info_length, ENC_NA);
458 proto_item_append_text(parameter_item, " (%u byte%s)", diag_info_length, plurality(diag_info_length, "", "s"));
459 }
460
461 #define HEARTBEAT_DATA_OFFSET PARAMETER_VALUE_OFFSET
462
463 static void
dissect_heartbeat_data_parameter(tvbuff_t * parameter_tvb,proto_tree * parameter_tree,proto_item * parameter_item)464 dissect_heartbeat_data_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
465 {
466 guint16 heartbeat_data_length;
467
468 heartbeat_data_length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH;
469 proto_tree_add_item(parameter_tree, hf_heartbeat_data, parameter_tvb, HEARTBEAT_DATA_OFFSET, heartbeat_data_length, ENC_NA);
470 proto_item_append_text(parameter_item, " (%u byte%s)", heartbeat_data_length, plurality(heartbeat_data_length, "", "s"));
471 }
472
473 #define UNKNOWN_UNAVAIL_CAUSE 0
474 #define UNEQUIPPED_REMOTE_USER_UNAVAIL_CAUSE 1
475 #define INACCESSIBLE_REMOTE_USER_UNAVAIL_CAUSE 2
476
477 static const value_string unavailability_cause_values[] = {
478 { UNKNOWN_UNAVAIL_CAUSE, "Unknown" },
479 { UNEQUIPPED_REMOTE_USER_UNAVAIL_CAUSE, "Unequipped remote user" },
480 { INACCESSIBLE_REMOTE_USER_UNAVAIL_CAUSE, "Inaccessible remote user" },
481 {0, NULL } };
482
483 #define RESERVED_0_USER_ID 0
484 #define RESERVED_1_USER_ID 1
485 #define RESERVED_2_USER_ID 2
486 #define SCCP_USER_ID 3
487 #define TUP_USER_ID 4
488 #define ISUP_USER_ID 5
489 #define RESERVED_6_USER_ID 6
490 #define RESERVED_7_USER_ID 7
491 #define RESERVED_8_USER_ID 8
492 #define BROADBAND_ISUP_USER_ID 9
493 #define SATELLITE_ISUP_USER_ID 10
494 #define RESERVED_11_USER_ID 11
495 #define AAL_2_SIGNALING_USER_ID 12
496 #define BICC_USER_ID 13
497 #define GATEWAY_CONTROL_PROTOCOL_USER_ID 14
498 #define RESERVED_15_USER_ID 15
499
500 static const value_string user_identity_values[] = {
501 { RESERVED_0_USER_ID, "Reserved" },
502 { RESERVED_1_USER_ID, "Reserved" },
503 { RESERVED_2_USER_ID, "Reserved" },
504 { SCCP_USER_ID, "SCCP" },
505 { TUP_USER_ID, "TUP" },
506 { ISUP_USER_ID, "ISUP" },
507 { RESERVED_6_USER_ID, "Reserved" },
508 { RESERVED_7_USER_ID, "Reserved" },
509 { RESERVED_8_USER_ID, "Reserved" },
510 { BROADBAND_ISUP_USER_ID, "Broadband ISUP" },
511 { SATELLITE_ISUP_USER_ID, "Satellite ISUP" },
512 { RESERVED_11_USER_ID, "Reserved" },
513 { AAL_2_SIGNALING_USER_ID,"AAL type2 Signaling"},
514 { BICC_USER_ID, "Bearer Independent Call Control (BICC)"},
515 { GATEWAY_CONTROL_PROTOCOL_USER_ID, "Gateway Control Protocol"},
516 { RESERVED_15_USER_ID, "Reserved" },
517
518 {0, NULL } };
519
520 #define CAUSE_LENGTH 2
521 #define USER_LENGTH 2
522
523 #define CAUSE_OFFSET PARAMETER_VALUE_OFFSET
524 #define USER_OFFSET (CAUSE_OFFSET + CAUSE_LENGTH)
525
526 static void
dissect_user_cause_parameter(tvbuff_t * parameter_tvb,proto_tree * parameter_tree,proto_item * parameter_item)527 dissect_user_cause_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
528 {
529 proto_tree_add_item(parameter_tree, hf_cause, parameter_tvb, CAUSE_OFFSET, CAUSE_LENGTH, ENC_BIG_ENDIAN);
530 proto_tree_add_item(parameter_tree, hf_user, parameter_tvb, USER_OFFSET, USER_LENGTH, ENC_BIG_ENDIAN);
531 proto_item_append_text(parameter_item, " (%s: %s)",
532 val_to_str_const(tvb_get_ntohs(parameter_tvb, USER_OFFSET), user_identity_values, "Unknown user"),
533 val_to_str_const(tvb_get_ntohs(parameter_tvb, CAUSE_OFFSET), unavailability_cause_values, "unknown cause"));
534 }
535
536 #define UNSPECIFIED_REASON 0
537 #define USER_UNAVAILABLE_REASON 1
538 #define MANAGEMENT_BLOCKING_REASON 2
539
540 static const value_string reason_values[] = {
541 { UNSPECIFIED_REASON, "Unspecified" },
542 { USER_UNAVAILABLE_REASON, "User unavailable" },
543 { MANAGEMENT_BLOCKING_REASON, "Management blocking" },
544 {0, NULL } };
545
546 #define REASON_LENGTH 4
547 #define REASON_OFFSET PARAMETER_VALUE_OFFSET
548
549 static void
dissect_reason_parameter(tvbuff_t * parameter_tvb,proto_tree * parameter_tree,proto_item * parameter_item)550 dissect_reason_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
551 {
552 proto_tree_add_item(parameter_tree, hf_reason, parameter_tvb, REASON_OFFSET, REASON_LENGTH, ENC_BIG_ENDIAN);
553 proto_item_append_text(parameter_item, " (%s)", val_to_str_const(tvb_get_ntohl(parameter_tvb, REASON_OFFSET), reason_values, "unknown"));
554 }
555
556 #define TRAFFIC_MODE_TYPE_LENGTH 4
557 #define TRAFFIC_MODE_TYPE_OFFSET PARAMETER_VALUE_OFFSET
558
559 static const value_string v5_traffic_mode_type_values[] = {
560 { 1, "Over-ride" },
561 { 2, "Load-share" },
562 { 3, "Over-ride (standby)" },
563 { 4, "Load-share (standby)" },
564 { 0, NULL } };
565
566 static void
dissect_v5_traffic_mode_type_parameter(tvbuff_t * parameter_tvb,proto_tree * parameter_tree,proto_item * parameter_item)567 dissect_v5_traffic_mode_type_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
568 {
569 proto_tree_add_item(parameter_tree, hf_v5_traffic_mode_type, parameter_tvb, TRAFFIC_MODE_TYPE_OFFSET, TRAFFIC_MODE_TYPE_LENGTH, ENC_BIG_ENDIAN);
570 proto_item_append_text(parameter_item, " (%s)", val_to_str_const(tvb_get_ntohl(parameter_tvb, TRAFFIC_MODE_TYPE_OFFSET), v5_traffic_mode_type_values, "unknown"));
571 }
572
573 static const value_string v6_traffic_mode_type_values[] = {
574 { 1, "Over-ride" },
575 { 2, "Load-share" },
576 { 3, "Over-ride (standby)" },
577 { 4, "Load-share (standby)" },
578 { 0, NULL } };
579
580 static void
dissect_v6_traffic_mode_type_parameter(tvbuff_t * parameter_tvb,proto_tree * parameter_tree,proto_item * parameter_item)581 dissect_v6_traffic_mode_type_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
582 {
583 proto_tree_add_item(parameter_tree, hf_v6_traffic_mode_type, parameter_tvb, TRAFFIC_MODE_TYPE_OFFSET, TRAFFIC_MODE_TYPE_LENGTH, ENC_BIG_ENDIAN);
584 proto_item_append_text(parameter_item, " (%s)", val_to_str_const(tvb_get_ntohl(parameter_tvb, TRAFFIC_MODE_TYPE_OFFSET), v6_traffic_mode_type_values, "unknown"));
585 }
586
587 static const value_string v7_traffic_mode_type_values[] = {
588 { 1, "Over-ride" },
589 { 2, "Load-share" },
590 { 0, NULL } };
591
592 static void
dissect_v7_traffic_mode_type_parameter(tvbuff_t * parameter_tvb,proto_tree * parameter_tree,proto_item * parameter_item)593 dissect_v7_traffic_mode_type_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
594 {
595 proto_tree_add_item(parameter_tree, hf_v7_traffic_mode_type, parameter_tvb, TRAFFIC_MODE_TYPE_OFFSET, TRAFFIC_MODE_TYPE_LENGTH, ENC_BIG_ENDIAN);
596 proto_item_append_text(parameter_item, " (%s)", val_to_str_const(tvb_get_ntohl(parameter_tvb, TRAFFIC_MODE_TYPE_OFFSET), v7_traffic_mode_type_values, "unknown"));
597 }
598
599 static const value_string traffic_mode_type_values[] = {
600 { 1, "Over-ride" },
601 { 2, "Load-share" },
602 { 3, "Broadcast" },
603 { 0, NULL } };
604
605 static void
dissect_traffic_mode_type_parameter(tvbuff_t * parameter_tvb,proto_tree * parameter_tree,proto_item * parameter_item)606 dissect_traffic_mode_type_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
607 {
608 proto_tree_add_item(parameter_tree, hf_traffic_mode_type, parameter_tvb, TRAFFIC_MODE_TYPE_OFFSET, TRAFFIC_MODE_TYPE_LENGTH, ENC_BIG_ENDIAN);
609 proto_item_append_text(parameter_item, " (%s)", val_to_str_const(tvb_get_ntohl(parameter_tvb, TRAFFIC_MODE_TYPE_OFFSET), traffic_mode_type_values, "unknown"));
610 }
611
612 #define ERROR_CODE_LENGTH 4
613 #define ERROR_CODE_OFFSET PARAMETER_VALUE_OFFSET
614
615 static const value_string v5_error_code_values[] = {
616 { 1, "Invalid version" },
617 { 2, "Invalid network appearance" },
618 { 3, "Unsupported message class" },
619 { 4, "Unsupported message type" },
620 { 5, "Invalid traffic handling mode" },
621 { 6, "Unexpected message" },
622 { 7, "Protocol error" },
623 { 8, "Invalid routing context" },
624 { 0, NULL } };
625
626 static void
dissect_v5_error_code_parameter(tvbuff_t * parameter_tvb,proto_tree * parameter_tree,proto_item * parameter_item)627 dissect_v5_error_code_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
628 {
629 proto_tree_add_item(parameter_tree, hf_v5_error_code, parameter_tvb, ERROR_CODE_OFFSET, ERROR_CODE_LENGTH, ENC_BIG_ENDIAN);
630 proto_item_append_text(parameter_item, " (%s)", val_to_str_const(tvb_get_ntohl(parameter_tvb, ERROR_CODE_OFFSET), v5_error_code_values, "unknown"));
631 }
632
633 static const value_string v6_error_code_values[] = {
634 { 1, "Invalid version" },
635 { 2, "Invalid network appearance" },
636 { 3, "Unsupported message class" },
637 { 4, "Unsupported message type" },
638 { 5, "Invalid traffic handling mode" },
639 { 6, "Unexpected message" },
640 { 7, "Protocol error" },
641 { 8, "Invalid routing context" },
642 { 9, "Invalid stream identifier" },
643 { 10, "Invalid parameter value" },
644 { 0, NULL } };
645
646
647 static void
dissect_v6_error_code_parameter(tvbuff_t * parameter_tvb,proto_tree * parameter_tree,proto_item * parameter_item)648 dissect_v6_error_code_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
649 {
650 proto_tree_add_item(parameter_tree, hf_v6_error_code, parameter_tvb, ERROR_CODE_OFFSET, ERROR_CODE_LENGTH, ENC_BIG_ENDIAN);
651 proto_item_append_text(parameter_item, " (%s)", val_to_str_const(tvb_get_ntohl(parameter_tvb, ERROR_CODE_OFFSET), v6_error_code_values, "unknown"));
652 }
653
654 static const value_string v7_error_code_values[] = {
655 { 1, "Invalid version" },
656 { 2, "Invalid network appearance" },
657 { 3, "Unsupported message class" },
658 { 4, "Unsupported message type" },
659 { 5, "Invalid traffic handling mode" },
660 { 6, "Unexpected message" },
661 { 7, "Protocol error" },
662 { 8, "Invalid routing context" },
663 { 9, "Invalid stream identifier" },
664 { 10, "Invalid parameter value" },
665 { 11, "Refused - Management Blocking" },
666 { 12, "Unknown Routing Context" },
667 { 0, NULL } };
668
669
670 static void
dissect_v7_error_code_parameter(tvbuff_t * parameter_tvb,proto_tree * parameter_tree,proto_item * parameter_item)671 dissect_v7_error_code_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
672 {
673 proto_tree_add_item(parameter_tree, hf_v7_error_code, parameter_tvb, ERROR_CODE_OFFSET, ERROR_CODE_LENGTH, ENC_BIG_ENDIAN);
674 proto_item_append_text(parameter_item, " (%s)", val_to_str_const(tvb_get_ntohl(parameter_tvb, ERROR_CODE_OFFSET), v7_error_code_values, "unknown"));
675 }
676
677 static const value_string error_code_values[] = {
678 { 0x01, "Invalid version" },
679 { 0x03, "Unsupported message class" },
680 { 0x04, "Unsupported message type" },
681 { 0x05, "Unsupported traffic handling mode" },
682 { 0x06, "Unexpected message" },
683 { 0x07, "Protocol error" },
684 { 0x09, "Invalid stream identifier" },
685 { 0x0d, "Refused - management blocking" },
686 { 0x0e, "ASP identifier required" },
687 { 0x0f, "Invalid ASP identifier" },
688 { 0x11, "Invalid parameter value" },
689 { 0x12, "Parameter field error" },
690 { 0x13, "Unexpected parameter" },
691 { 0x14, "Destination status unknown" },
692 { 0x15, "Invalid network appearance" },
693 { 0x16, "Missing parameter" },
694 { 0x19, "Invalid routing context" },
695 { 0x1a, "No configured AS for ASP" },
696 { 0, NULL } };
697
698 static void
dissect_error_code_parameter(tvbuff_t * parameter_tvb,proto_tree * parameter_tree,proto_item * parameter_item)699 dissect_error_code_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
700 {
701 proto_tree_add_item(parameter_tree, hf_error_code, parameter_tvb, ERROR_CODE_OFFSET, ERROR_CODE_LENGTH, ENC_BIG_ENDIAN);
702 proto_item_append_text(parameter_item, " (%s)", val_to_str_const(tvb_get_ntohl(parameter_tvb, ERROR_CODE_OFFSET), error_code_values, "unknown"));
703 }
704
705 #define AS_STATE_CHANGE_TYPE 1
706 #define OTHER_TYPE 2
707
708 static const value_string status_type_values[] = {
709 { AS_STATE_CHANGE_TYPE, "Application server state change" },
710 { OTHER_TYPE, "Other" },
711 { 0, NULL } };
712
713 #define RESERVED_INFO 1
714 #define AS_INACTIVE_INFO 2
715 #define AS_ACTIVE_INFO 3
716 #define AS_PENDING_INFO 4
717
718 #define INSUFFICIENT_ASP_RES_INFO 1
719 #define ALTERNATE_ASP_ACTIVE_INFO 2
720 #define ASP_FAILURE_INFO 3
721
722 static const value_string v567_status_type_info_values[] = {
723 { AS_STATE_CHANGE_TYPE * 256 * 256 + RESERVED_INFO, "Reserved" },
724 { AS_STATE_CHANGE_TYPE * 256 * 256 + AS_INACTIVE_INFO, "Application server inactive" },
725 { AS_STATE_CHANGE_TYPE * 256 * 256 + AS_ACTIVE_INFO, "Application server active" },
726 { AS_STATE_CHANGE_TYPE * 256 * 256 + AS_PENDING_INFO, "Application server pending" },
727 { OTHER_TYPE * 256 * 256 + INSUFFICIENT_ASP_RES_INFO, "Insufficient ASP resources active in AS" },
728 { OTHER_TYPE * 256 * 256 + ALTERNATE_ASP_ACTIVE_INFO, "Alternate ASP active" },
729 {0, NULL } };
730
731
732 #define STATUS_TYPE_LENGTH 2
733 #define STATUS_INFO_LENGTH 2
734
735 #define STATUS_TYPE_OFFSET PARAMETER_VALUE_OFFSET
736 #define STATUS_INFO_OFFSET (STATUS_TYPE_OFFSET + STATUS_TYPE_LENGTH)
737
738 static void
dissect_v567_status_parameter(tvbuff_t * parameter_tvb,proto_tree * parameter_tree,proto_item * parameter_item)739 dissect_v567_status_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
740 {
741 guint16 status_type, status_info;
742
743 status_type = tvb_get_ntohs(parameter_tvb, STATUS_TYPE_OFFSET);
744 status_info = tvb_get_ntohs(parameter_tvb, STATUS_INFO_OFFSET);
745
746 proto_tree_add_item(parameter_tree, hf_status_type, parameter_tvb, STATUS_TYPE_OFFSET, STATUS_TYPE_LENGTH, ENC_BIG_ENDIAN);
747 proto_tree_add_uint_format_value(parameter_tree, hf_status_info, parameter_tvb, STATUS_INFO_OFFSET, STATUS_INFO_LENGTH, status_info,
748 "%s (%u)", val_to_str_const(status_type * 256 * 256 + status_info, v567_status_type_info_values, "unknown"), status_info);
749
750 proto_item_append_text(parameter_item, " (%s)", val_to_str_const(status_type * 256 * 256 + status_info, v567_status_type_info_values, "unknown status information"));
751 }
752
753 static const value_string status_type_info_values[] = {
754 { AS_STATE_CHANGE_TYPE * 256 * 256 + RESERVED_INFO, "Reserved" },
755 { AS_STATE_CHANGE_TYPE * 256 * 256 + AS_INACTIVE_INFO, "Application server inactive" },
756 { AS_STATE_CHANGE_TYPE * 256 * 256 + AS_ACTIVE_INFO, "Application server active" },
757 { AS_STATE_CHANGE_TYPE * 256 * 256 + AS_PENDING_INFO, "Application server pending" },
758 { OTHER_TYPE * 256 * 256 + INSUFFICIENT_ASP_RES_INFO, "Insufficient ASP resources active in AS" },
759 { OTHER_TYPE * 256 * 256 + ALTERNATE_ASP_ACTIVE_INFO, "Alternate ASP active" },
760 { OTHER_TYPE * 256 * 256 + ASP_FAILURE_INFO, "ASP Failure" },
761 {0, NULL } };
762
763 static void
dissect_status_parameter(tvbuff_t * parameter_tvb,proto_tree * parameter_tree,proto_item * parameter_item)764 dissect_status_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
765 {
766 guint16 status_type, status_info;
767
768 status_type = tvb_get_ntohs(parameter_tvb, STATUS_TYPE_OFFSET);
769 status_info = tvb_get_ntohs(parameter_tvb, STATUS_INFO_OFFSET);
770
771 proto_tree_add_item(parameter_tree, hf_status_type, parameter_tvb, STATUS_TYPE_OFFSET, STATUS_TYPE_LENGTH, ENC_BIG_ENDIAN);
772 proto_tree_add_uint_format_value(parameter_tree, hf_status_info, parameter_tvb, STATUS_INFO_OFFSET, STATUS_INFO_LENGTH, status_info,
773 "%s (%u)", val_to_str_const(status_type * 256 * 256 + status_info, status_type_info_values, "unknown"), status_info);
774
775 proto_item_append_text(parameter_item, " (%s)", val_to_str_const(status_type * 256 * 256 + status_info, status_type_info_values, "unknown status information"));
776 }
777
778 static const value_string congestion_level_values[] = {
779 { 0, "No congestion or undefined" },
780 { 1, "Congestion level 1" },
781 { 2, "Congestion level 2" },
782 { 3, "Congestion level 3" },
783 { 0, NULL } };
784
785 #define CONG_IND_RESERVED_LENGTH 3
786 #define CONG_IND_LEVEL_LENGTH 1
787
788 #define CONG_IND_RESERVED_OFFSET PARAMETER_VALUE_OFFSET
789 #define CONG_IND_LEVEL_OFFSET (CONG_IND_RESERVED_OFFSET + CONG_IND_RESERVED_LENGTH)
790
791 static void
dissect_congestion_indication_parameter(tvbuff_t * parameter_tvb,proto_tree * parameter_tree,proto_item * parameter_item)792 dissect_congestion_indication_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
793 {
794 proto_tree_add_item(parameter_tree, hf_congestion_reserved, parameter_tvb, CONG_IND_RESERVED_OFFSET, CONG_IND_RESERVED_LENGTH, ENC_NA);
795 proto_tree_add_item(parameter_tree, hf_congestion_level, parameter_tvb, CONG_IND_LEVEL_OFFSET, CONG_IND_LEVEL_LENGTH, ENC_BIG_ENDIAN);
796 proto_item_append_text(parameter_item, " (%s)", val_to_str_const(tvb_get_guint8(parameter_tvb, CONG_IND_LEVEL_OFFSET), congestion_level_values, "unknown"));
797 }
798
799 #define ASP_IDENTIFIER_OFFSET PARAMETER_VALUE_OFFSET
800 #define ASP_IDENTIFIER_LENGTH 4
801
802 static void
dissect_asp_identifier_parameter(tvbuff_t * parameter_tvb,proto_tree * parameter_tree,proto_item * parameter_item)803 dissect_asp_identifier_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
804 {
805 proto_tree_add_item(parameter_tree, hf_asp_identifier, parameter_tvb, ASP_IDENTIFIER_OFFSET, ASP_IDENTIFIER_LENGTH, ENC_BIG_ENDIAN);
806 proto_item_append_text(parameter_item, " (%u)", tvb_get_ntohl(parameter_tvb, ASP_IDENTIFIER_OFFSET));
807 }
808
809 #define PROTOCOL_DATA_1_OFFSET PARAMETER_VALUE_OFFSET
810
811 static void
dissect_protocol_data_1_parameter(tvbuff_t * parameter_tvb,packet_info * pinfo,proto_tree * tree,proto_item * parameter_item)812 dissect_protocol_data_1_parameter(tvbuff_t *parameter_tvb, packet_info *pinfo, proto_tree *tree, proto_item *parameter_item)
813 {
814 guint16 protocol_data_length;
815 tvbuff_t *payload_tvb;
816
817 protocol_data_length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH;
818 payload_tvb = tvb_new_subset_length(parameter_tvb, PROTOCOL_DATA_1_OFFSET, protocol_data_length);
819 proto_item_append_text(parameter_item, " (SS7 message of %u byte%s)", protocol_data_length, plurality(protocol_data_length, "", "s"));
820 proto_item_set_len(parameter_item, PARAMETER_HEADER_LENGTH);
821 call_dissector(mtp3_handle, payload_tvb, pinfo, tree);
822 }
823
824 #define LI_OCTETT_LENGTH 1
825 #define LI_OCTETT_OFFSET PARAMETER_VALUE_OFFSET
826 #define PROTOCOL_DATA_2_OFFSET (PARAMETER_VALUE_OFFSET + LI_OCTETT_LENGTH)
827
828 static void
dissect_protocol_data_2_parameter(tvbuff_t * parameter_tvb,packet_info * pinfo,proto_tree * tree,proto_tree * parameter_tree,proto_item * parameter_item)829 dissect_protocol_data_2_parameter(tvbuff_t *parameter_tvb, packet_info *pinfo, proto_tree *tree, proto_tree *parameter_tree, proto_item *parameter_item)
830 {
831 guint16 protocol_data_length;
832 tvbuff_t *payload_tvb;
833
834 protocol_data_length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH - LI_OCTETT_LENGTH;
835 payload_tvb = tvb_new_subset_length(parameter_tvb, PROTOCOL_DATA_2_OFFSET, protocol_data_length);
836 proto_tree_add_item(parameter_tree, hf_li, parameter_tvb, LI_OCTETT_OFFSET, LI_OCTETT_LENGTH, ENC_BIG_ENDIAN);
837 proto_item_append_text(parameter_item, " (SS7 message of %u byte%s)", protocol_data_length, plurality(protocol_data_length, "", "s"));
838 proto_item_set_len(parameter_item, PARAMETER_HEADER_LENGTH + LI_OCTETT_LENGTH);
839 call_dissector(mtp3_handle, payload_tvb, pinfo, tree);
840 }
841
842
843
844 #define CON_DEST_RESERVED_LENGTH 1
845 #define CON_DEST_PC_LENGTH 3
846
847 #define CON_DEST_RESERVED_OFFSET PARAMETER_VALUE_OFFSET
848 #define CON_DEST_PC_OFFSET (CON_DEST_RESERVED_OFFSET + CON_DEST_RESERVED_LENGTH)
849
850 static void
dissect_concerned_destination_parameter(tvbuff_t * parameter_tvb,proto_tree * parameter_tree,proto_item * parameter_item)851 dissect_concerned_destination_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
852 {
853 proto_item *item;
854
855 proto_tree_add_item(parameter_tree, hf_concerned_dest_reserved, parameter_tvb, CON_DEST_RESERVED_OFFSET, CON_DEST_RESERVED_LENGTH, ENC_NA);
856 item = proto_tree_add_item(parameter_tree, hf_concerned_dest_pc, parameter_tvb, CON_DEST_PC_OFFSET, CON_DEST_PC_LENGTH, ENC_BIG_ENDIAN);
857 if (mtp3_pc_structured())
858 proto_item_append_text(item, " (%s)", mtp3_pc_to_str(tvb_get_ntoh24(parameter_tvb, CON_DEST_PC_OFFSET)));
859 proto_item_append_text(parameter_item, " (%s)", mtp3_pc_to_str(tvb_get_ntoh24(parameter_tvb, CON_DEST_PC_OFFSET)));
860 }
861
862 static void
dissect_routing_key_parameter(tvbuff_t * parameter_tvb,packet_info * pinfo,proto_tree * tree,proto_tree * parameter_tree)863 dissect_routing_key_parameter(tvbuff_t *parameter_tvb, packet_info *pinfo, proto_tree *tree, proto_tree *parameter_tree)
864 {
865 tvbuff_t *parameters_tvb;
866 guint16 length, parameters_length;
867
868 length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET);
869 parameters_length = length - PARAMETER_HEADER_LENGTH;
870 parameters_tvb = tvb_new_subset_length(parameter_tvb, PARAMETER_VALUE_OFFSET, parameters_length);
871 dissect_parameters(parameters_tvb, pinfo, tree, parameter_tree);
872 }
873
874 static const value_string registration_result_status_values[] = {
875 { 0, "Successfully Registered" } ,
876 { 1, "Error - Unknown" } ,
877 { 2, "Error - Invalid DPC" } ,
878 { 3, "Error - Invalid Network Appearance" } ,
879 { 4, "Error - Invalid Routing Key" } ,
880 { 5, "Error - Permission Denied" } ,
881 { 6, "Error - Overlapping (Non-unique) Routing Key" } ,
882 { 7, "Error - Routing Key not Provisioned" } ,
883 { 8, "Error - Insufficient Resources" } ,
884 { 0, NULL } };
885
886 #define REG_RES_IDENTIFIER_LENGTH 4
887 #define REG_RES_STATUS_LENGTH 4
888 #define REG_RES_CONTEXT_LENGTH 4
889
890 #define REG_RES_IDENTIFIER_OFFSET PARAMETER_VALUE_OFFSET
891 #define REG_RES_STATUS_OFFSET (REG_RES_IDENTIFIER_OFFSET + REG_RES_IDENTIFIER_LENGTH)
892 #define REG_RES_CONTEXT_OFFSET (REG_RES_STATUS_OFFSET + REG_RES_STATUS_LENGTH)
893
894 static void
dissect_v67_registration_result_parameter(tvbuff_t * parameter_tvb,proto_tree * parameter_tree)895 dissect_v67_registration_result_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree)
896 {
897 proto_tree_add_item(parameter_tree, hf_registration_result_identifier, parameter_tvb, REG_RES_IDENTIFIER_OFFSET, REG_RES_IDENTIFIER_LENGTH, ENC_BIG_ENDIAN);
898 proto_tree_add_item(parameter_tree, hf_registration_result_status, parameter_tvb, REG_RES_STATUS_OFFSET, REG_RES_STATUS_LENGTH, ENC_BIG_ENDIAN);
899 proto_tree_add_item(parameter_tree, hf_registration_result_context, parameter_tvb, REG_RES_CONTEXT_OFFSET, REG_RES_CONTEXT_LENGTH, ENC_BIG_ENDIAN);
900 }
901
902 static void
dissect_registration_result_parameter(tvbuff_t * parameter_tvb,packet_info * pinfo,proto_tree * tree,proto_tree * parameter_tree)903 dissect_registration_result_parameter(tvbuff_t *parameter_tvb, packet_info *pinfo, proto_tree *tree, proto_tree *parameter_tree)
904 {
905 tvbuff_t *parameters_tvb;
906 guint16 length, parameters_length;
907
908 length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET);
909 parameters_length = length - PARAMETER_HEADER_LENGTH;
910 parameters_tvb = tvb_new_subset_length(parameter_tvb, PARAMETER_VALUE_OFFSET, parameters_length);
911 dissect_parameters(parameters_tvb, pinfo, tree, parameter_tree);
912 }
913
914 static const value_string v6_deregistration_result_status_values[] = {
915 { 0, "Successfully De-registered" } ,
916 { 1, "Error - Unknown" } ,
917 { 2, "Error - Invalid Routing context" } ,
918 { 3, "Error - Permission Denied" } ,
919 { 4, "Error - Not registered" } ,
920 { 0, NULL } };
921
922 #define DEREG_RES_CONTEXT_LENGTH 4
923 #define DEREG_RES_STATUS_LENGTH 4
924
925 #define DEREG_RES_CONTEXT_OFFSET PARAMETER_VALUE_OFFSET
926 #define DEREG_RES_STATUS_OFFSET (DEREG_RES_CONTEXT_OFFSET + DEREG_RES_CONTEXT_LENGTH)
927
928 static void
dissect_v67_deregistration_result_parameter(tvbuff_t * parameter_tvb,proto_tree * parameter_tree)929 dissect_v67_deregistration_result_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree)
930 {
931 proto_tree_add_item(parameter_tree, hf_v6_deregistration_result_context, parameter_tvb, DEREG_RES_CONTEXT_OFFSET, DEREG_RES_CONTEXT_LENGTH, ENC_BIG_ENDIAN);
932 proto_tree_add_item(parameter_tree, hf_v6_deregistration_result_status, parameter_tvb, DEREG_RES_STATUS_OFFSET, DEREG_RES_STATUS_LENGTH, ENC_BIG_ENDIAN);
933 }
934
935 static void
dissect_deregistration_result_parameter(tvbuff_t * parameter_tvb,packet_info * pinfo,proto_tree * tree,proto_tree * parameter_tree)936 dissect_deregistration_result_parameter(tvbuff_t *parameter_tvb, packet_info *pinfo, proto_tree *tree, proto_tree *parameter_tree)
937 {
938 tvbuff_t *parameters_tvb;
939 guint16 length, parameters_length;
940
941 length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET);
942 parameters_length = length - PARAMETER_HEADER_LENGTH;
943 parameters_tvb = tvb_new_subset_length(parameter_tvb, PARAMETER_VALUE_OFFSET, parameters_length);
944 dissect_parameters(parameters_tvb, pinfo, tree, parameter_tree);
945 }
946
947
948 #define LOCAL_RK_IDENTIFIER_OFFSET PARAMETER_VALUE_OFFSET
949 #define LOCAL_RK_IDENTIFIER_LENGTH 4
950
951 static void
dissect_local_routing_key_identifier_parameter(tvbuff_t * parameter_tvb,proto_tree * parameter_tree,proto_item * parameter_item)952 dissect_local_routing_key_identifier_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
953 {
954 proto_tree_add_item(parameter_tree, hf_local_rk_identifier, parameter_tvb, LOCAL_RK_IDENTIFIER_OFFSET, LOCAL_RK_IDENTIFIER_LENGTH, ENC_BIG_ENDIAN);
955 proto_item_append_text(parameter_item, " (%u)", tvb_get_ntohl(parameter_tvb, LOCAL_RK_IDENTIFIER_OFFSET));
956 }
957
958 #define DPC_MASK_LENGTH 1
959 #define DPC_PC_LENGTH 3
960
961 #define DPC_MASK_OFFSET PARAMETER_VALUE_OFFSET
962 #define DPC_PC_OFFSET (DPC_MASK_OFFSET + DPC_MASK_LENGTH)
963
964 static void
dissect_destination_point_code_parameter(tvbuff_t * parameter_tvb,proto_tree * parameter_tree,proto_item * parameter_item)965 dissect_destination_point_code_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
966 {
967 proto_item *item;
968
969 proto_tree_add_item(parameter_tree, hf_dpc_mask, parameter_tvb, DPC_MASK_OFFSET, DPC_MASK_LENGTH, ENC_BIG_ENDIAN);
970 item = proto_tree_add_item(parameter_tree, hf_dpc_pc, parameter_tvb, DPC_PC_OFFSET, DPC_PC_LENGTH, ENC_BIG_ENDIAN);
971 if (mtp3_pc_structured())
972 proto_item_append_text(item, " (%s)", mtp3_pc_to_str(tvb_get_ntoh24(parameter_tvb, DPC_PC_OFFSET)));
973 proto_item_append_text(parameter_item, " (%s)", mtp3_pc_to_str(tvb_get_ntoh24(parameter_tvb, DPC_PC_OFFSET)));
974 }
975
976 #define SI_LENGTH 1
977
978 static void
dissect_service_indicators_parameter(tvbuff_t * parameter_tvb,proto_tree * parameter_tree,proto_item * parameter_item)979 dissect_service_indicators_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
980 {
981 guint16 length, number_of_sis, si_number;
982 gint si_offset;
983
984 length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET);
985 number_of_sis = length - PARAMETER_HEADER_LENGTH;
986
987 si_offset = PARAMETER_VALUE_OFFSET;
988 for(si_number=0; si_number < number_of_sis; si_number++) {
989 proto_tree_add_item(parameter_tree, hf_si, parameter_tvb, si_offset, SI_LENGTH, ENC_BIG_ENDIAN);
990 si_offset += SI_LENGTH;
991 };
992 proto_item_append_text(parameter_item, " (%u indicator%s)", number_of_sis, plurality(number_of_sis, "", "s"));
993
994 }
995 #define SSN_LENGTH 1
996
997 static void
dissect_subsystem_numbers_parameter(tvbuff_t * parameter_tvb,proto_tree * parameter_tree,proto_item * parameter_item)998 dissect_subsystem_numbers_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
999 {
1000 guint16 length, number_of_ssns, ssn_number;
1001 gint ssn_offset;
1002
1003 length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET);
1004 number_of_ssns = length - PARAMETER_HEADER_LENGTH;
1005
1006 ssn_offset = PARAMETER_VALUE_OFFSET;
1007 for(ssn_number=0; ssn_number < number_of_ssns; ssn_number++) {
1008 proto_tree_add_item(parameter_tree, hf_ssn, parameter_tvb, ssn_offset, SSN_LENGTH, ENC_BIG_ENDIAN);
1009 ssn_offset += SSN_LENGTH;
1010 };
1011 proto_item_append_text(parameter_item, " (%u number%s)", number_of_ssns, plurality(number_of_ssns, "", "s"));
1012
1013 }
1014
1015 #define OPC_MASK_LENGTH 1
1016 #define OPC_PC_LENGTH 3
1017 #define OPC_LENGTH (OPC_MASK_LENGTH + OPC_PC_LENGTH)
1018 #define OPC_MASK_OFFSET 0
1019 #define OPC_PC_OFFSET (OPC_MASK_OFFSET + OPC_MASK_LENGTH)
1020
1021 static void
dissect_originating_point_code_list_parameter(tvbuff_t * parameter_tvb,proto_tree * parameter_tree,proto_item * parameter_item)1022 dissect_originating_point_code_list_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
1023 {
1024 guint16 length, number_of_point_codes, point_code_number;
1025 gint point_code_offset;
1026 proto_item *item;
1027
1028 length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET);
1029 number_of_point_codes = (length - PARAMETER_HEADER_LENGTH) / 4;
1030
1031 point_code_offset = PARAMETER_VALUE_OFFSET;
1032 for(point_code_number=0; point_code_number < number_of_point_codes; point_code_number++) {
1033 proto_tree_add_item(parameter_tree, hf_opc_list_mask, parameter_tvb, point_code_offset + OPC_MASK_OFFSET, OPC_MASK_LENGTH, ENC_BIG_ENDIAN);
1034 item = proto_tree_add_item(parameter_tree, hf_opc_list_pc, parameter_tvb, point_code_offset + OPC_PC_OFFSET, OPC_PC_LENGTH, ENC_BIG_ENDIAN);
1035 if (mtp3_pc_structured())
1036 proto_item_append_text(item, " (%s)", mtp3_pc_to_str(tvb_get_ntoh24(parameter_tvb, point_code_offset + OPC_PC_OFFSET)));
1037 point_code_offset += OPC_LENGTH;
1038 };
1039 proto_item_append_text(parameter_item, " (%u point code%s)", number_of_point_codes, plurality(number_of_point_codes, "", "s"));
1040 }
1041
1042 #define CIC_RANGE_MASK_LENGTH 1
1043 #define CIC_RANGE_PC_LENGTH 3
1044 #define CIC_RANGE_LOWER_LENGTH 2
1045 #define CIC_RANGE_UPPER_LENGTH 2
1046 #define CIC_RANGE_LENGTH (CIC_RANGE_MASK_LENGTH + CIC_RANGE_PC_LENGTH + CIC_RANGE_LOWER_LENGTH + CIC_RANGE_UPPER_LENGTH)
1047 #define CIC_RANGE_MASK_OFFSET 0
1048 #define CIC_RANGE_PC_OFFSET (CIC_RANGE_MASK_OFFSET + CIC_RANGE_MASK_LENGTH)
1049 #define CIC_RANGE_LOWER_OFFSET (CIC_RANGE_PC_OFFSET + CIC_RANGE_PC_LENGTH)
1050 #define CIC_RANGE_UPPER_OFFSET (CIC_RANGE_LOWER_OFFSET + CIC_RANGE_LOWER_LENGTH)
1051
1052 static void
dissect_circuit_range_parameter(tvbuff_t * parameter_tvb,proto_tree * parameter_tree,proto_item * parameter_item)1053 dissect_circuit_range_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
1054 {
1055 guint16 length, number_of_point_codes, point_code_number, cic_low, cic_high;
1056 guint32 pc;
1057 gint point_code_offset;
1058 proto_item *pc_item, *cic_range_item;
1059 proto_tree *cic_range_tree;
1060 gchar *pc_string;
1061
1062 length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET);
1063 number_of_point_codes = (length - PARAMETER_HEADER_LENGTH) / CIC_RANGE_LENGTH;
1064
1065 point_code_offset = PARAMETER_VALUE_OFFSET;
1066 for(point_code_number = 0; point_code_number < number_of_point_codes; point_code_number++) {
1067 cic_range_tree = proto_tree_add_subtree(parameter_tree, parameter_tvb, point_code_offset + CIC_RANGE_MASK_OFFSET, CIC_RANGE_LENGTH, ett_parameter, &cic_range_item, "CIC range");
1068
1069 proto_tree_add_item(cic_range_tree, hf_cic_range_mask, parameter_tvb, point_code_offset + CIC_RANGE_MASK_OFFSET, CIC_RANGE_MASK_LENGTH, ENC_BIG_ENDIAN);
1070
1071 pc = tvb_get_ntoh24(parameter_tvb, point_code_offset + CIC_RANGE_PC_OFFSET);
1072 pc_string = mtp3_pc_to_str(pc);
1073 pc_item = proto_tree_add_item(cic_range_tree, hf_cic_range_pc, parameter_tvb, point_code_offset + CIC_RANGE_PC_OFFSET, CIC_RANGE_PC_LENGTH, ENC_BIG_ENDIAN);
1074 if (mtp3_pc_structured())
1075 proto_item_append_text(pc_item, " (%s)", pc_string);
1076
1077 cic_low = tvb_get_ntohs(parameter_tvb, point_code_offset + CIC_RANGE_LOWER_OFFSET);
1078 proto_tree_add_item(cic_range_tree, hf_cic_range_lower, parameter_tvb, point_code_offset + CIC_RANGE_LOWER_OFFSET, CIC_RANGE_LOWER_LENGTH, ENC_BIG_ENDIAN);
1079 cic_high = tvb_get_ntohs(parameter_tvb, point_code_offset + CIC_RANGE_UPPER_OFFSET);
1080 proto_tree_add_item(cic_range_tree, hf_cic_range_upper, parameter_tvb, point_code_offset + CIC_RANGE_UPPER_OFFSET, CIC_RANGE_UPPER_LENGTH, ENC_BIG_ENDIAN);
1081
1082 proto_item_append_text(cic_range_item, " (%s: %d-%d)", pc_string, cic_low, cic_high);
1083 point_code_offset += CIC_RANGE_LENGTH;
1084 };
1085 proto_item_append_text(parameter_item, " (%u range%s)", number_of_point_codes, plurality(number_of_point_codes, "", "s"));
1086 }
1087
1088 #define DATA_OPC_LENGTH 4
1089 #define DATA_DPC_LENGTH 4
1090 #define DATA_SI_LENGTH 1
1091 #define DATA_NI_LENGTH 1
1092 #define DATA_MP_LENGTH 1
1093 #define DATA_SLS_LENGTH 1
1094 #define DATA_HDR_LENGTH (DATA_OPC_LENGTH + DATA_DPC_LENGTH + DATA_SI_LENGTH + DATA_NI_LENGTH + DATA_MP_LENGTH + DATA_SLS_LENGTH)
1095
1096 #define DATA_OPC_OFFSET PARAMETER_VALUE_OFFSET
1097 #define DATA_DPC_OFFSET (DATA_OPC_OFFSET + DATA_OPC_LENGTH)
1098 #define DATA_SI_OFFSET (DATA_DPC_OFFSET + DATA_DPC_LENGTH)
1099 #define DATA_NI_OFFSET (DATA_SI_OFFSET + DATA_SI_LENGTH)
1100 #define DATA_MP_OFFSET (DATA_NI_OFFSET + DATA_NI_LENGTH)
1101 #define DATA_SLS_OFFSET (DATA_MP_OFFSET + DATA_MP_LENGTH)
1102 #define DATA_ULP_OFFSET (DATA_SLS_OFFSET + DATA_SLS_LENGTH)
1103
1104 static guint
m3ua_heur_mtp3_standard(tvbuff_t * tvb,packet_info * pinfo,guint32 opc,guint32 dpc,guint8 si)1105 m3ua_heur_mtp3_standard(tvbuff_t *tvb, packet_info *pinfo, guint32 opc, guint32 dpc, guint8 si)
1106 {
1107 switch (si) {
1108 case MTP_SI_SCCP:
1109 {
1110 if (opc < ITU_PC_MASK && dpc < ITU_PC_MASK &&
1111 looks_like_valid_sccp(pinfo->num, tvb, ITU_STANDARD)) {
1112
1113 return ITU_STANDARD;
1114 }
1115 /* Network 0 is reserved in ANSI */
1116 /* Could also check that cluster!=0 for small networks (networks 1-5) */
1117 if ((opc & ANSI_NETWORK_MASK) > 0 && (dpc & ANSI_NETWORK_MASK) > 0 &&
1118 looks_like_valid_sccp(pinfo->num, tvb, ANSI_STANDARD)) {
1119
1120 return ANSI_STANDARD;
1121 }
1122 if (looks_like_valid_sccp(pinfo->num, tvb, CHINESE_ITU_STANDARD)) {
1123 return CHINESE_ITU_STANDARD;
1124 }
1125 if (opc < JAPAN_PC_MASK && dpc < JAPAN_PC_MASK &&
1126 looks_like_valid_sccp(pinfo->num, tvb, JAPAN_STANDARD)) {
1127
1128 return JAPAN_STANDARD;
1129 }
1130
1131 return HEURISTIC_FAILED_STANDARD;
1132
1133 }
1134 default:
1135 return HEURISTIC_FAILED_STANDARD;
1136 }
1137 }
1138
1139 static void
m3ua_reset_mtp3_standard(void)1140 m3ua_reset_mtp3_standard(void)
1141 {
1142 mtp3_standard = m3ua_pref_mtp3_standard;
1143 }
1144
1145 static void
dissect_protocol_data_parameter(tvbuff_t * parameter_tvb,packet_info * pinfo,proto_tree * tree,proto_tree * parameter_tree,proto_item * parameter_item)1146 dissect_protocol_data_parameter(tvbuff_t *parameter_tvb, packet_info *pinfo, proto_tree *tree, proto_tree *parameter_tree, proto_item *parameter_item)
1147 {
1148 guint16 ulp_length;
1149 tvbuff_t *payload_tvb;
1150 proto_item *item, *gen_item;
1151 mtp3_tap_rec_t* mtp3_tap;
1152 proto_tree *q708_tree;
1153 gint heuristic_standard;
1154 guint8 si;
1155 guint32 opc, dpc;
1156
1157 mtp3_tap = wmem_new0(pinfo->pool, mtp3_tap_rec_t);
1158
1159 si = tvb_get_guint8(parameter_tvb, DATA_SI_OFFSET);
1160 ulp_length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH - DATA_HDR_LENGTH;
1161 payload_tvb = tvb_new_subset_length(parameter_tvb, DATA_ULP_OFFSET, ulp_length);
1162 dpc = tvb_get_ntohl(parameter_tvb, DATA_DPC_OFFSET);
1163 opc = tvb_get_ntohl(parameter_tvb, DATA_OPC_OFFSET);
1164
1165 m3ua_pref_mtp3_standard = mtp3_standard;
1166
1167 if (mtp3_heuristic_standard) {
1168 heuristic_standard = m3ua_heur_mtp3_standard(payload_tvb, pinfo, opc, dpc, si);
1169 if (heuristic_standard == HEURISTIC_FAILED_STANDARD) {
1170 gen_item = proto_tree_add_uint_format(tree, hf_heuristic_standard, parameter_tvb, 0, 0, heuristic_standard,
1171 "Could not determine Heuristic using %s", val_to_str_const(mtp3_standard, mtp3_standard_vals, "unknown"));
1172 } else {
1173 gen_item = proto_tree_add_uint_format(tree, hf_heuristic_standard, parameter_tvb, 0, 0, heuristic_standard,
1174 "%s", val_to_str_const(heuristic_standard, mtp3_standard_vals, "unknown"));
1175
1176 mtp3_standard = heuristic_standard;
1177
1178 /* Register a frame-end routine to ensure mtp3_standard is set
1179 * back even if an exception is thrown.
1180 */
1181 register_frame_end_routine(pinfo, m3ua_reset_mtp3_standard);
1182 }
1183 proto_item_set_generated(gen_item);
1184 }
1185
1186 mtp3_tap->addr_dpc.type = (Standard_Type)mtp3_standard;
1187 mtp3_tap->addr_dpc.pc = dpc;
1188 mtp3_tap->addr_dpc.ni = tvb_get_guint8(parameter_tvb, DATA_NI_OFFSET);
1189 set_address(&pinfo->dst, ss7pc_address_type, sizeof(mtp3_addr_pc_t), (guint8 *) &mtp3_tap->addr_dpc);
1190
1191
1192 mtp3_tap->addr_opc.type = (Standard_Type)mtp3_standard;
1193 mtp3_tap->addr_opc.pc = opc;
1194 mtp3_tap->addr_opc.ni = tvb_get_guint8(parameter_tvb, DATA_NI_OFFSET);
1195 set_address(&pinfo->src, ss7pc_address_type, sizeof(mtp3_addr_pc_t), (guint8 *) &mtp3_tap->addr_opc);
1196
1197 mtp3_tap->mtp3_si_code = tvb_get_guint8(parameter_tvb, DATA_SI_OFFSET);
1198 mtp3_tap->size = 0;
1199
1200 tap_queue_packet(m3ua_tap, pinfo, mtp3_tap);
1201
1202 ulp_length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH - DATA_HDR_LENGTH;
1203
1204 if (parameter_tree) {
1205 item = proto_tree_add_item(parameter_tree, hf_protocol_data_opc, parameter_tvb, DATA_OPC_OFFSET, DATA_OPC_LENGTH, ENC_BIG_ENDIAN);
1206 if (mtp3_pc_structured())
1207 proto_item_append_text(item, " (%s)", mtp3_pc_to_str(opc));
1208 if(mtp3_tap->addr_opc.ni == MTP3_NI_INT0) {
1209 q708_tree = proto_item_add_subtree(item,ett_q708_opc);
1210 /* Q.708 (1984-10) Numbering of International Signalling Point Codes */
1211 analyze_q708_ispc(parameter_tvb, q708_tree, DATA_OPC_OFFSET, DATA_OPC_LENGTH, opc);
1212 }
1213
1214 item = proto_tree_add_item(parameter_tree, hf_protocol_data_dpc, parameter_tvb, DATA_DPC_OFFSET, DATA_DPC_LENGTH, ENC_BIG_ENDIAN);
1215 if (mtp3_pc_structured())
1216 proto_item_append_text(item, " (%s)", mtp3_pc_to_str(dpc));
1217 if(mtp3_tap->addr_dpc.ni == MTP3_NI_INT0) {
1218 q708_tree = proto_item_add_subtree(item,ett_q708_dpc);
1219 analyze_q708_ispc(parameter_tvb, q708_tree, DATA_DPC_OFFSET, DATA_DPC_LENGTH, dpc);
1220 }
1221
1222 proto_tree_add_item(parameter_tree, hf_protocol_data_si, parameter_tvb, DATA_SI_OFFSET, DATA_SI_LENGTH, ENC_BIG_ENDIAN);
1223 proto_tree_add_item(parameter_tree, hf_protocol_data_ni, parameter_tvb, DATA_NI_OFFSET, DATA_NI_LENGTH, ENC_BIG_ENDIAN);
1224 proto_tree_add_item(parameter_tree, hf_protocol_data_mp, parameter_tvb, DATA_MP_OFFSET, DATA_MP_LENGTH, ENC_BIG_ENDIAN);
1225 proto_tree_add_item(parameter_tree, hf_protocol_data_sls, parameter_tvb, DATA_SLS_OFFSET, DATA_SLS_LENGTH, ENC_BIG_ENDIAN);
1226
1227 proto_item_append_text(parameter_item, " (SS7 message of %u byte%s)", ulp_length, plurality(ulp_length, "", "s"));
1228 proto_item_set_len(parameter_item, PARAMETER_HEADER_LENGTH + DATA_HDR_LENGTH);
1229
1230 parameter_tree = proto_tree_add_subtree(parameter_tree,parameter_tvb,0,0,ett_mtp3_equiv,&item,"MTP3 equivalents");
1231 proto_item_set_generated(item);
1232
1233 item = proto_tree_add_item(parameter_tree, hf_protocol_data_mtp3_opc, parameter_tvb, DATA_OPC_OFFSET, DATA_OPC_LENGTH, ENC_BIG_ENDIAN);
1234 proto_item_set_generated(item);
1235 item = proto_tree_add_item(parameter_tree, hf_protocol_data_mtp3_dpc, parameter_tvb, DATA_DPC_OFFSET, DATA_OPC_LENGTH, ENC_BIG_ENDIAN);
1236 proto_item_set_generated(item);
1237 item = proto_tree_add_item(parameter_tree, hf_protocol_data_mtp3_pc, parameter_tvb, DATA_OPC_OFFSET, DATA_OPC_LENGTH, ENC_BIG_ENDIAN);
1238 proto_item_set_generated(item);
1239 item = proto_tree_add_item(parameter_tree, hf_protocol_data_mtp3_pc, parameter_tvb, DATA_DPC_OFFSET, DATA_OPC_LENGTH, ENC_BIG_ENDIAN);
1240 proto_item_set_generated(item);
1241 item = proto_tree_add_item(parameter_tree, hf_protocol_data_mtp3_ni, parameter_tvb, DATA_NI_OFFSET, DATA_NI_LENGTH, ENC_BIG_ENDIAN);
1242 proto_item_set_generated(item);
1243 item = proto_tree_add_item(parameter_tree, hf_protocol_data_mtp3_sls, parameter_tvb, DATA_SLS_OFFSET, DATA_SLS_LENGTH, ENC_BIG_ENDIAN);
1244 proto_item_set_generated(item);
1245
1246 }/* parameter_tree */
1247
1248 payload_tvb = tvb_new_subset_length(parameter_tvb, DATA_ULP_OFFSET, ulp_length);
1249 if (!dissector_try_uint(si_dissector_table, tvb_get_guint8(parameter_tvb, DATA_SI_OFFSET), payload_tvb, pinfo, tree))
1250 call_data_dissector(payload_tvb, pinfo, tree);
1251
1252 mtp3_standard = m3ua_pref_mtp3_standard;
1253 }
1254
1255 #define CORR_ID_OFFSET PARAMETER_VALUE_OFFSET
1256 #define CORR_ID_LENGTH 4
1257
1258 static void
dissect_correlation_identifier_parameter(tvbuff_t * parameter_tvb,proto_tree * parameter_tree,proto_item * parameter_item)1259 dissect_correlation_identifier_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
1260 {
1261 proto_tree_add_item(parameter_tree, hf_correlation_identifier, parameter_tvb, CORR_ID_OFFSET, CORR_ID_LENGTH, ENC_BIG_ENDIAN);
1262 proto_item_append_text(parameter_item, " (%u)", tvb_get_ntohl(parameter_tvb, CORR_ID_OFFSET));
1263 }
1264
1265 #define REG_STATUS_LENGTH 4
1266 #define REG_STATUS_OFFSET PARAMETER_VALUE_OFFSET
1267
1268 static const value_string registration_status_values[] = {
1269 { 0, "Successfully Registered" },
1270 { 1, "Error - Unknown" },
1271 { 2, "Error - Invalid DPC" },
1272 { 3, "Error - Invalid Network Appearance" },
1273 { 4, "Error - Invalid Routing Key" },
1274 { 5, "Error - Permission Denied" },
1275 { 6, "Error - Cannot Support Unique Routing" },
1276 { 7, "Error - Routing Key not Currently Provisioned" },
1277 { 8, "Error - Insufficient Resources" },
1278 { 9, "Error - Unsupported RK parameter Field" },
1279 { 10, "Error - Unsupported/Invalid Traffic Handling Mode" },
1280 { 11, "Error - Routing Key Change Refused" },
1281 { 12, "Error - Routing Key Already Registered" },
1282 { 0, NULL } };
1283
1284 static void
dissect_registration_status_parameter(tvbuff_t * parameter_tvb,proto_tree * parameter_tree,proto_item * parameter_item)1285 dissect_registration_status_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
1286 {
1287 proto_tree_add_item(parameter_tree, hf_registration_status, parameter_tvb, REG_STATUS_OFFSET, REG_STATUS_LENGTH, ENC_BIG_ENDIAN);
1288 proto_item_append_text(parameter_item, " (%s)", val_to_str_const(tvb_get_ntohl(parameter_tvb, REG_STATUS_OFFSET), registration_status_values, "unknown"));
1289 }
1290
1291 #define DEREG_STATUS_LENGTH 4
1292 #define DEREG_STATUS_OFFSET PARAMETER_VALUE_OFFSET
1293
1294 static const value_string deregistration_status_values[] = {
1295 { 0, "Successfully Deregistered" },
1296 { 1, "Error - Unknown" },
1297 { 2, "Error - Invalid Routing Context" },
1298 { 3, "Error - Permission Denied" },
1299 { 4, "Error - Not Registered" },
1300 { 5, "Error - ASP Currently Active for Routing Context" },
1301 { 0, NULL } };
1302
1303 static void
dissect_deregistration_status_parameter(tvbuff_t * parameter_tvb,proto_tree * parameter_tree,proto_item * parameter_item)1304 dissect_deregistration_status_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
1305 {
1306 proto_tree_add_item(parameter_tree, hf_deregistration_status, parameter_tvb, DEREG_STATUS_OFFSET, DEREG_STATUS_LENGTH, ENC_BIG_ENDIAN);
1307 proto_item_append_text(parameter_item, " (%s)", val_to_str_const(tvb_get_ntohl(parameter_tvb, DEREG_STATUS_OFFSET), deregistration_status_values, "unknown"));
1308 }
1309
1310 static void
dissect_registration_results_parameter(tvbuff_t * parameter_tvb,packet_info * pinfo,proto_tree * tree,proto_tree * parameter_tree)1311 dissect_registration_results_parameter(tvbuff_t *parameter_tvb, packet_info *pinfo, proto_tree *tree, proto_tree *parameter_tree)
1312 {
1313 tvbuff_t *parameters_tvb;
1314 guint16 parameters_length;
1315
1316 parameters_length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH;
1317 parameters_tvb = tvb_new_subset_length(parameter_tvb, PARAMETER_VALUE_OFFSET, parameters_length);
1318 dissect_parameters(parameters_tvb, pinfo, tree, parameter_tree);
1319 }
1320
1321 static void
dissect_deregistration_results_parameter(tvbuff_t * parameter_tvb,packet_info * pinfo,proto_tree * tree,proto_tree * parameter_tree)1322 dissect_deregistration_results_parameter(tvbuff_t *parameter_tvb, packet_info *pinfo, proto_tree *tree, proto_tree *parameter_tree)
1323 {
1324 tvbuff_t *parameters_tvb;
1325 guint16 parameters_length;
1326
1327 parameters_length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH;
1328 parameters_tvb = tvb_new_subset_length(parameter_tvb, PARAMETER_VALUE_OFFSET, parameters_length);
1329 dissect_parameters(parameters_tvb, pinfo, tree, parameter_tree);
1330 }
1331
1332 static void
dissect_unknown_parameter(tvbuff_t * parameter_tvb,proto_tree * parameter_tree,proto_item * parameter_item)1333 dissect_unknown_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
1334 {
1335 guint16 tag, parameter_value_length;
1336
1337 tag = tvb_get_ntohs(parameter_tvb, PARAMETER_TAG_OFFSET);
1338 parameter_value_length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH;
1339 proto_tree_add_item(parameter_tree, hf_parameter_value, parameter_tvb, PARAMETER_VALUE_OFFSET, parameter_value_length, ENC_NA);
1340 proto_item_append_text(parameter_item, " (tag %u and %u byte%s value)", tag, parameter_value_length, plurality(parameter_value_length, "", "s"));
1341 }
1342
1343 #define V5_NETWORK_APPEARANCE_PARAMETER_TAG 1
1344 #define V5_PROTOCOL_DATA_PARAMETER_TAG 3
1345 #define V5_INFO_PARAMETER_TAG 4
1346 #define V5_AFFECTED_DESTINATIONS_PARAMETER_TAG 5
1347 #define V5_ROUTING_CONTEXT_PARAMETER_TAG 6
1348 #define V5_DIAGNOSTIC_INFORMATION_PARAMETER_TAG 7
1349 #define V5_HEARTBEAT_DATA_PARAMETER_TAG 8
1350 #define V5_USER_CAUSE_PARAMETER_TAG 9
1351 #define V5_REASON_PARAMETER_TAG 10
1352 #define V5_TRAFFIC_MODE_TYPE_PARAMETER_TAG 11
1353 #define V5_ERROR_CODE_PARAMETER_TAG 12
1354 #define V5_STATUS_PARAMETER_TAG 13
1355 #define V5_CONGESTION_INDICATION_PARAMETER_TAG 14
1356
1357 static const value_string v5_parameter_tag_values[] = {
1358 { V5_NETWORK_APPEARANCE_PARAMETER_TAG, "Network appearance" },
1359 { V5_PROTOCOL_DATA_PARAMETER_TAG, "Protocol data" },
1360 { V5_INFO_PARAMETER_TAG, "Info" },
1361 { V5_AFFECTED_DESTINATIONS_PARAMETER_TAG, "Affected destinations" },
1362 { V5_ROUTING_CONTEXT_PARAMETER_TAG, "Routing context" },
1363 { V5_DIAGNOSTIC_INFORMATION_PARAMETER_TAG, "Diagnostic information" },
1364 { V5_HEARTBEAT_DATA_PARAMETER_TAG, "Heartbeat data" },
1365 { V5_USER_CAUSE_PARAMETER_TAG, "User / Cause" },
1366 { V5_REASON_PARAMETER_TAG, "Reason" },
1367 { V5_TRAFFIC_MODE_TYPE_PARAMETER_TAG, "Traffic mode type" },
1368 { V5_ERROR_CODE_PARAMETER_TAG, "Error code" },
1369 { V5_STATUS_PARAMETER_TAG, "Status" },
1370 { V5_CONGESTION_INDICATION_PARAMETER_TAG, "Congestion indication" },
1371 { 0, NULL } };
1372
1373 static void
dissect_v5_parameter(tvbuff_t * parameter_tvb,packet_info * pinfo,proto_tree * tree,proto_tree * m3ua_tree)1374 dissect_v5_parameter(tvbuff_t *parameter_tvb, packet_info *pinfo, proto_tree *tree, proto_tree *m3ua_tree)
1375 {
1376 guint16 tag, length, padding_length;
1377 proto_item *parameter_item;
1378 proto_tree *parameter_tree;
1379
1380 /* extract tag and length from the parameter */
1381 tag = tvb_get_ntohs(parameter_tvb, PARAMETER_TAG_OFFSET);
1382 length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET);
1383 padding_length = tvb_reported_length(parameter_tvb) - length;
1384
1385 if (!tree && tag != V5_PROTOCOL_DATA_PARAMETER_TAG)
1386 return; /* Nothing to do here */
1387
1388 /* create proto_tree stuff */
1389 parameter_tree = proto_tree_add_subtree(m3ua_tree, parameter_tvb, PARAMETER_HEADER_OFFSET, -1, ett_parameter, ¶meter_item,
1390 val_to_str_const(tag, v5_parameter_tag_values, "Unknown parameter"));
1391
1392 /* add tag and length to the parameter tree */
1393 proto_tree_add_item(parameter_tree, hf_v5_parameter_tag, parameter_tvb, PARAMETER_TAG_OFFSET, PARAMETER_TAG_LENGTH, ENC_BIG_ENDIAN);
1394 proto_tree_add_item(parameter_tree, hf_parameter_length, parameter_tvb, PARAMETER_LENGTH_OFFSET, PARAMETER_LENGTH_LENGTH, ENC_BIG_ENDIAN);
1395
1396 switch(tag) {
1397 case V5_NETWORK_APPEARANCE_PARAMETER_TAG:
1398 dissect_network_appearance_parameter(parameter_tvb, parameter_tree, parameter_item);
1399 break;
1400 case V5_PROTOCOL_DATA_PARAMETER_TAG:
1401 dissect_v5_protocol_data_parameter(parameter_tvb, pinfo, tree, parameter_item);
1402 break;
1403 case V5_INFO_PARAMETER_TAG:
1404 dissect_info_string_parameter(parameter_tvb, parameter_tree, parameter_item);
1405 break;
1406 case V5_AFFECTED_DESTINATIONS_PARAMETER_TAG:
1407 dissect_affected_destinations_parameter(parameter_tvb, parameter_tree, parameter_item);
1408 break;
1409 case V5_ROUTING_CONTEXT_PARAMETER_TAG:
1410 dissect_routing_context_parameter(parameter_tvb, parameter_tree, parameter_item);
1411 break;
1412 case V5_DIAGNOSTIC_INFORMATION_PARAMETER_TAG:
1413 dissect_diagnostic_information_parameter(parameter_tvb, parameter_tree, parameter_item);
1414 break;
1415 case V5_HEARTBEAT_DATA_PARAMETER_TAG:
1416 dissect_heartbeat_data_parameter(parameter_tvb, parameter_tree, parameter_item);
1417 break;
1418 case V5_USER_CAUSE_PARAMETER_TAG:
1419 dissect_user_cause_parameter(parameter_tvb, parameter_tree, parameter_item);
1420 break;
1421 case V5_REASON_PARAMETER_TAG:
1422 dissect_reason_parameter(parameter_tvb, parameter_tree, parameter_item);
1423 break;
1424 case V5_TRAFFIC_MODE_TYPE_PARAMETER_TAG:
1425 dissect_v5_traffic_mode_type_parameter(parameter_tvb, parameter_tree, parameter_item);
1426 break;
1427 case V5_ERROR_CODE_PARAMETER_TAG:
1428 dissect_v5_error_code_parameter(parameter_tvb, parameter_tree, parameter_item);
1429 break;
1430 case V5_STATUS_PARAMETER_TAG:
1431 dissect_v567_status_parameter(parameter_tvb, parameter_tree, parameter_item);
1432 break;
1433 case V5_CONGESTION_INDICATION_PARAMETER_TAG:
1434 dissect_congestion_indication_parameter(parameter_tvb, parameter_tree, parameter_item);
1435 break;
1436 default:
1437 dissect_unknown_parameter(parameter_tvb, parameter_tree, parameter_item);
1438 break;
1439 };
1440 if (padding_length > 0)
1441 proto_tree_add_item(parameter_tree, hf_parameter_padding, parameter_tvb, PARAMETER_HEADER_OFFSET + length, padding_length, ENC_NA);
1442 }
1443
1444 #define V6_NETWORK_APPEARANCE_PARAMETER_TAG 1
1445 #define V6_PROTOCOL_DATA_1_PARAMETER_TAG 2
1446 #define V6_PROTOCOL_DATA_2_PARAMETER_TAG 3
1447 #define V6_INFO_PARAMETER_TAG 4
1448 #define V6_AFFECTED_DESTINATIONS_PARAMETER_TAG 5
1449 #define V6_ROUTING_CONTEXT_PARAMETER_TAG 6
1450 #define V6_DIAGNOSTIC_INFORMATION_PARAMETER_TAG 7
1451 #define V6_HEARTBEAT_DATA_PARAMETER_TAG 8
1452 #define V6_USER_CAUSE_PARAMETER_TAG 9
1453 #define V6_REASON_PARAMETER_TAG 10
1454 #define V6_TRAFFIC_MODE_TYPE_PARAMETER_TAG 11
1455 #define V6_ERROR_CODE_PARAMETER_TAG 12
1456 #define V6_STATUS_PARAMETER_TAG 13
1457 #define V6_CONGESTION_INDICATION_PARAMETER_TAG 14
1458 #define V6_CONCERNED_DESTINATION_PARAMETER_TAG 15
1459 #define V6_ROUTING_KEY_PARAMETER_TAG 16
1460 #define V6_REGISTRATION_RESULT_PARAMETER_TAG 17
1461 #define V6_DEREGISTRATION_RESULT_PARAMETER_TAG 18
1462 #define V6_LOCAL_ROUTING_KEY_IDENTIFIER_PARAMETER_TAG 19
1463 #define V6_DESTINATION_POINT_CODE_PARAMETER_TAG 20
1464 #define V6_SERVICE_INDICATORS_PARAMETER_TAG 21
1465 #define V6_SUBSYSTEM_NUMBERS_PARAMETER_TAG 22
1466 #define V6_ORIGINATING_POINT_CODE_LIST_PARAMETER_TAG 23
1467 #define V6_CIRCUIT_RANGE_PARAMETER_TAG 24
1468 #define V6_REGISTRATION_RESULTS_PARAMETER_TAG 25
1469 #define V6_DEREGISTRATION_RESULTS_PARAMETER_TAG 26
1470
1471 static const value_string v6_parameter_tag_values[] = {
1472 { V6_NETWORK_APPEARANCE_PARAMETER_TAG, "Network appearance" },
1473 { V6_PROTOCOL_DATA_1_PARAMETER_TAG, "Protocol data 1" },
1474 { V6_PROTOCOL_DATA_2_PARAMETER_TAG, "Protocol data 2" },
1475 { V6_INFO_PARAMETER_TAG, "Info" },
1476 { V6_AFFECTED_DESTINATIONS_PARAMETER_TAG, "Affected destinations" },
1477 { V6_ROUTING_CONTEXT_PARAMETER_TAG, "Routing context" },
1478 { V6_DIAGNOSTIC_INFORMATION_PARAMETER_TAG, "Diagnostic information" },
1479 { V6_HEARTBEAT_DATA_PARAMETER_TAG, "Heartbeat data" },
1480 { V6_USER_CAUSE_PARAMETER_TAG, "User / Cause" },
1481 { V6_REASON_PARAMETER_TAG, "Reason" },
1482 { V6_TRAFFIC_MODE_TYPE_PARAMETER_TAG, "Traffic mode type" },
1483 { V6_ERROR_CODE_PARAMETER_TAG, "Error code" },
1484 { V6_STATUS_PARAMETER_TAG, "Status" },
1485 { V6_CONGESTION_INDICATION_PARAMETER_TAG, "Congestion indication" },
1486 { V6_CONCERNED_DESTINATION_PARAMETER_TAG, "Concerned destination" },
1487 { V6_ROUTING_KEY_PARAMETER_TAG, "Routing Key" },
1488 { V6_REGISTRATION_RESULT_PARAMETER_TAG, "Registration result" },
1489 { V6_DEREGISTRATION_RESULT_PARAMETER_TAG, "De-registration result" },
1490 { V6_LOCAL_ROUTING_KEY_IDENTIFIER_PARAMETER_TAG, "Local routing key identifier" },
1491 { V6_DESTINATION_POINT_CODE_PARAMETER_TAG, "Destination point code" },
1492 { V6_SERVICE_INDICATORS_PARAMETER_TAG, "Service indicators" },
1493 { V6_SUBSYSTEM_NUMBERS_PARAMETER_TAG, "Subsystem numbers" },
1494 { V6_ORIGINATING_POINT_CODE_LIST_PARAMETER_TAG, "Originating point code list" },
1495 { V6_CIRCUIT_RANGE_PARAMETER_TAG, "Circuit range" },
1496 { V6_REGISTRATION_RESULTS_PARAMETER_TAG, "Registration results" },
1497 { V6_DEREGISTRATION_RESULTS_PARAMETER_TAG, "De-registration results" },
1498 { 0, NULL } };
1499
1500 static void
dissect_v6_parameter(tvbuff_t * parameter_tvb,packet_info * pinfo,proto_tree * tree,proto_tree * m3ua_tree)1501 dissect_v6_parameter(tvbuff_t *parameter_tvb, packet_info *pinfo, proto_tree *tree, proto_tree *m3ua_tree)
1502 {
1503 guint16 tag, length, padding_length;
1504 proto_item *parameter_item;
1505 proto_tree *parameter_tree;
1506
1507 /* extract tag and length from the parameter */
1508 tag = tvb_get_ntohs(parameter_tvb, PARAMETER_TAG_OFFSET);
1509 length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET);
1510 padding_length = tvb_reported_length(parameter_tvb) - length;
1511
1512 if (!tree && tag != V6_PROTOCOL_DATA_1_PARAMETER_TAG && tag != V6_PROTOCOL_DATA_2_PARAMETER_TAG)
1513 return; /* Nothing to do here */
1514
1515 /* create proto_tree stuff */
1516 parameter_tree = proto_tree_add_subtree(m3ua_tree, parameter_tvb, PARAMETER_HEADER_OFFSET, -1,
1517 ett_parameter, ¶meter_item, val_to_str_const(tag, v6_parameter_tag_values, "Unknown parameter"));
1518
1519 /* add tag and length to the parameter tree */
1520 proto_tree_add_item(parameter_tree, hf_v6_parameter_tag, parameter_tvb, PARAMETER_TAG_OFFSET, PARAMETER_TAG_LENGTH, ENC_BIG_ENDIAN);
1521 proto_tree_add_item(parameter_tree, hf_parameter_length, parameter_tvb, PARAMETER_LENGTH_OFFSET, PARAMETER_LENGTH_LENGTH, ENC_BIG_ENDIAN);
1522
1523 switch(tag) {
1524 case V6_NETWORK_APPEARANCE_PARAMETER_TAG:
1525 dissect_network_appearance_parameter(parameter_tvb, parameter_tree, parameter_item);
1526 break;
1527 case V6_PROTOCOL_DATA_1_PARAMETER_TAG:
1528 dissect_protocol_data_1_parameter(parameter_tvb, pinfo, tree, parameter_item);
1529 break;
1530 case V6_PROTOCOL_DATA_2_PARAMETER_TAG:
1531 dissect_protocol_data_2_parameter(parameter_tvb, pinfo, tree, parameter_tree, parameter_item);
1532 break;
1533 case V6_INFO_PARAMETER_TAG:
1534 dissect_info_string_parameter(parameter_tvb, parameter_tree, parameter_item);
1535 break;
1536 case V6_AFFECTED_DESTINATIONS_PARAMETER_TAG:
1537 dissect_affected_destinations_parameter(parameter_tvb, parameter_tree, parameter_item);
1538 break;
1539 case V6_ROUTING_CONTEXT_PARAMETER_TAG:
1540 dissect_routing_context_parameter(parameter_tvb, parameter_tree, parameter_item);
1541 break;
1542 case V6_DIAGNOSTIC_INFORMATION_PARAMETER_TAG:
1543 dissect_diagnostic_information_parameter(parameter_tvb, parameter_tree, parameter_item);
1544 break;
1545 case V6_HEARTBEAT_DATA_PARAMETER_TAG:
1546 dissect_heartbeat_data_parameter(parameter_tvb, parameter_tree, parameter_item);
1547 break;
1548 case V6_USER_CAUSE_PARAMETER_TAG:
1549 dissect_user_cause_parameter(parameter_tvb, parameter_tree, parameter_item);
1550 break;
1551 case V6_REASON_PARAMETER_TAG:
1552 dissect_reason_parameter(parameter_tvb, parameter_tree, parameter_item);
1553 break;
1554 case V6_TRAFFIC_MODE_TYPE_PARAMETER_TAG:
1555 dissect_v6_traffic_mode_type_parameter(parameter_tvb, parameter_tree, parameter_item);
1556 break;
1557 case V6_ERROR_CODE_PARAMETER_TAG:
1558 dissect_v6_error_code_parameter(parameter_tvb, parameter_tree, parameter_item);
1559 break;
1560 case V6_STATUS_PARAMETER_TAG:
1561 dissect_v567_status_parameter(parameter_tvb, parameter_tree, parameter_item);
1562 break;
1563 case V6_CONGESTION_INDICATION_PARAMETER_TAG:
1564 dissect_congestion_indication_parameter(parameter_tvb, parameter_tree, parameter_item);
1565 break;
1566 case V6_CONCERNED_DESTINATION_PARAMETER_TAG:
1567 dissect_concerned_destination_parameter(parameter_tvb, parameter_tree, parameter_item);
1568 break;
1569 case V6_ROUTING_KEY_PARAMETER_TAG:
1570 dissect_routing_key_parameter(parameter_tvb, pinfo, tree, parameter_tree);
1571 break;
1572 case V6_REGISTRATION_RESULT_PARAMETER_TAG:
1573 dissect_v67_registration_result_parameter(parameter_tvb, parameter_tree);
1574 break;
1575 case V6_DEREGISTRATION_RESULT_PARAMETER_TAG:
1576 dissect_v67_deregistration_result_parameter(parameter_tvb, parameter_tree);
1577 break;
1578 case V6_LOCAL_ROUTING_KEY_IDENTIFIER_PARAMETER_TAG:
1579 dissect_local_routing_key_identifier_parameter(parameter_tvb, parameter_tree, parameter_item);
1580 break;
1581 case V6_DESTINATION_POINT_CODE_PARAMETER_TAG:
1582 dissect_destination_point_code_parameter(parameter_tvb, parameter_tree, parameter_item);
1583 break;
1584 case V6_SERVICE_INDICATORS_PARAMETER_TAG:
1585 dissect_service_indicators_parameter(parameter_tvb, parameter_tree, parameter_item);
1586 break;
1587 case V6_SUBSYSTEM_NUMBERS_PARAMETER_TAG:
1588 dissect_subsystem_numbers_parameter(parameter_tvb, parameter_tree, parameter_item);
1589 break;
1590 case V6_ORIGINATING_POINT_CODE_LIST_PARAMETER_TAG:
1591 dissect_originating_point_code_list_parameter(parameter_tvb, parameter_tree, parameter_item);
1592 break;
1593 case V6_CIRCUIT_RANGE_PARAMETER_TAG:
1594 dissect_circuit_range_parameter(parameter_tvb, parameter_tree, parameter_item);
1595 break;
1596 case V6_REGISTRATION_RESULTS_PARAMETER_TAG:
1597 dissect_registration_results_parameter(parameter_tvb, pinfo, tree, parameter_tree);
1598 break;
1599 case V6_DEREGISTRATION_RESULTS_PARAMETER_TAG:
1600 dissect_deregistration_results_parameter(parameter_tvb, pinfo, tree, parameter_tree);
1601 break;
1602 default:
1603 dissect_unknown_parameter(parameter_tvb, parameter_tree, parameter_item);
1604 break;
1605 };
1606
1607 if (padding_length > 0)
1608 proto_tree_add_item(parameter_tree, hf_parameter_padding, parameter_tvb, PARAMETER_HEADER_OFFSET + length, padding_length, ENC_NA);
1609 }
1610
1611 #define V7_NETWORK_APPEARANCE_PARAMETER_TAG 0x80
1612 #define V7_PROTOCOL_DATA_1_PARAMETER_TAG 0x81
1613 #define V7_PROTOCOL_DATA_2_PARAMETER_TAG 0x82
1614 #define V7_INFO_PARAMETER_TAG 0x04
1615 #define V7_AFFECTED_DESTINATIONS_PARAMETER_TAG 0x83
1616 #define V7_ROUTING_CONTEXT_PARAMETER_TAG 0x06
1617 #define V7_DIAGNOSTIC_INFORMATION_PARAMETER_TAG 0x07
1618 #define V7_HEARTBEAT_DATA_PARAMETER_TAG 0x09
1619 #define V7_USER_CAUSE_PARAMETER_TAG 0x84
1620 #define V7_REASON_PARAMETER_TAG 0x0a
1621 #define V7_TRAFFIC_MODE_TYPE_PARAMETER_TAG 0x0b
1622 #define V7_ERROR_CODE_PARAMETER_TAG 0x0c
1623 #define V7_STATUS_PARAMETER_TAG 0x0d
1624 #define V7_CONGESTION_INDICATION_PARAMETER_TAG 0x85
1625 #define V7_CONCERNED_DESTINATION_PARAMETER_TAG 0x86
1626 #define V7_ROUTING_KEY_PARAMETER_TAG 0x87
1627 #define V7_REGISTRATION_RESULT_PARAMETER_TAG 0x88
1628 #define V7_DEREGISTRATION_RESULT_PARAMETER_TAG 0x89
1629 #define V7_LOCAL_ROUTING_KEY_IDENTIFIER_PARAMETER_TAG 0x8a
1630 #define V7_DESTINATION_POINT_CODE_PARAMETER_TAG 0x8b
1631 #define V7_SERVICE_INDICATORS_PARAMETER_TAG 0x8c
1632 #define V7_SUBSYSTEM_NUMBERS_PARAMETER_TAG 0x8d
1633 #define V7_ORIGINATING_POINT_CODE_LIST_PARAMETER_TAG 0x8e
1634 #define V7_CIRCUIT_RANGE_PARAMETER_TAG 0x8f
1635 #define V7_REGISTRATION_RESULTS_PARAMETER_TAG 0x90
1636 #define V7_DEREGISTRATION_RESULTS_PARAMETER_TAG 0x91
1637
1638 static const value_string v7_parameter_tag_values[] = {
1639 { V7_NETWORK_APPEARANCE_PARAMETER_TAG, "Network appearance" },
1640 { V7_PROTOCOL_DATA_1_PARAMETER_TAG, "Protocol data 1" },
1641 { V7_PROTOCOL_DATA_2_PARAMETER_TAG, "Protocol data 2" },
1642 { V7_INFO_PARAMETER_TAG, "Info" },
1643 { V7_AFFECTED_DESTINATIONS_PARAMETER_TAG, "Affected destinations" },
1644 { V7_ROUTING_CONTEXT_PARAMETER_TAG, "Routing context" },
1645 { V7_DIAGNOSTIC_INFORMATION_PARAMETER_TAG, "Diagnostic information" },
1646 { V7_HEARTBEAT_DATA_PARAMETER_TAG, "Heartbeat data" },
1647 { V7_USER_CAUSE_PARAMETER_TAG, "User / Cause" },
1648 { V7_REASON_PARAMETER_TAG, "Reason" },
1649 { V7_TRAFFIC_MODE_TYPE_PARAMETER_TAG, "Traffic mode type" },
1650 { V7_ERROR_CODE_PARAMETER_TAG, "Error code" },
1651 { V7_STATUS_PARAMETER_TAG, "Status" },
1652 { V7_CONGESTION_INDICATION_PARAMETER_TAG, "Congestion indication" },
1653 { V7_CONCERNED_DESTINATION_PARAMETER_TAG, "Concerned destination" },
1654 { V7_ROUTING_KEY_PARAMETER_TAG, "Routing Key" },
1655 { V7_REGISTRATION_RESULT_PARAMETER_TAG, "Registration result" },
1656 { V7_DEREGISTRATION_RESULT_PARAMETER_TAG, "De-registration result" },
1657 { V7_LOCAL_ROUTING_KEY_IDENTIFIER_PARAMETER_TAG, "Local routing key identifier" },
1658 { V7_DESTINATION_POINT_CODE_PARAMETER_TAG, "Destination point code" },
1659 { V7_SERVICE_INDICATORS_PARAMETER_TAG, "Service indicators" },
1660 { V7_SUBSYSTEM_NUMBERS_PARAMETER_TAG, "Subsystem numbers" },
1661 { V7_ORIGINATING_POINT_CODE_LIST_PARAMETER_TAG, "Originating point code list" },
1662 { V7_CIRCUIT_RANGE_PARAMETER_TAG, "Circuit range" },
1663 { V7_REGISTRATION_RESULTS_PARAMETER_TAG, "Registration results" },
1664 { V7_DEREGISTRATION_RESULTS_PARAMETER_TAG, "De-registration results" },
1665 { 0, NULL } };
1666
1667 static void
dissect_v7_parameter(tvbuff_t * parameter_tvb,packet_info * pinfo,proto_tree * tree,proto_tree * m3ua_tree)1668 dissect_v7_parameter(tvbuff_t *parameter_tvb, packet_info *pinfo, proto_tree *tree, proto_tree *m3ua_tree)
1669 {
1670 guint16 tag, length, padding_length;
1671 proto_item *parameter_item;
1672 proto_tree *parameter_tree;
1673
1674 /* extract tag and length from the parameter */
1675 tag = tvb_get_ntohs(parameter_tvb, PARAMETER_TAG_OFFSET);
1676 length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET);
1677 padding_length = tvb_reported_length(parameter_tvb) - length;
1678
1679 if (!tree && tag != V7_PROTOCOL_DATA_1_PARAMETER_TAG && tag != V7_PROTOCOL_DATA_2_PARAMETER_TAG)
1680 return; /* Nothing to do here */
1681
1682 /* create proto_tree stuff */
1683 parameter_tree = proto_tree_add_subtree(m3ua_tree, parameter_tvb, PARAMETER_HEADER_OFFSET, -1,
1684 ett_parameter, ¶meter_item, val_to_str_const(tag, v7_parameter_tag_values, "Unknown parameter"));
1685
1686 /* add tag and length to the parameter tree */
1687 proto_tree_add_item(parameter_tree, hf_v7_parameter_tag, parameter_tvb, PARAMETER_TAG_OFFSET, PARAMETER_TAG_LENGTH, ENC_BIG_ENDIAN);
1688 proto_tree_add_item(parameter_tree, hf_parameter_length, parameter_tvb, PARAMETER_LENGTH_OFFSET, PARAMETER_LENGTH_LENGTH, ENC_BIG_ENDIAN);
1689
1690 switch(tag) {
1691 case V7_NETWORK_APPEARANCE_PARAMETER_TAG:
1692 dissect_network_appearance_parameter(parameter_tvb, parameter_tree, parameter_item);
1693 break;
1694 case V7_PROTOCOL_DATA_1_PARAMETER_TAG:
1695 dissect_protocol_data_1_parameter(parameter_tvb, pinfo, tree, parameter_item);
1696 break;
1697 case V7_PROTOCOL_DATA_2_PARAMETER_TAG:
1698 dissect_protocol_data_2_parameter(parameter_tvb, pinfo, tree, parameter_tree, parameter_item);
1699 break;
1700 case V7_INFO_PARAMETER_TAG:
1701 dissect_info_string_parameter(parameter_tvb, parameter_tree, parameter_item);
1702 break;
1703 case V7_AFFECTED_DESTINATIONS_PARAMETER_TAG:
1704 dissect_affected_destinations_parameter(parameter_tvb, parameter_tree, parameter_item);
1705 break;
1706 case V7_ROUTING_CONTEXT_PARAMETER_TAG:
1707 dissect_routing_context_parameter(parameter_tvb, parameter_tree, parameter_item);
1708 break;
1709 case V7_DIAGNOSTIC_INFORMATION_PARAMETER_TAG:
1710 dissect_diagnostic_information_parameter(parameter_tvb, parameter_tree, parameter_item);
1711 break;
1712 case V7_HEARTBEAT_DATA_PARAMETER_TAG:
1713 dissect_heartbeat_data_parameter(parameter_tvb, parameter_tree, parameter_item);
1714 break;
1715 case V7_USER_CAUSE_PARAMETER_TAG:
1716 dissect_user_cause_parameter(parameter_tvb, parameter_tree, parameter_item);
1717 break;
1718 case V7_REASON_PARAMETER_TAG:
1719 dissect_reason_parameter(parameter_tvb, parameter_tree, parameter_item);
1720 break;
1721 case V7_TRAFFIC_MODE_TYPE_PARAMETER_TAG:
1722 dissect_v7_traffic_mode_type_parameter(parameter_tvb, parameter_tree, parameter_item);
1723 break;
1724 case V7_ERROR_CODE_PARAMETER_TAG:
1725 dissect_v7_error_code_parameter(parameter_tvb, parameter_tree, parameter_item);
1726 break;
1727 case V7_STATUS_PARAMETER_TAG:
1728 dissect_v567_status_parameter(parameter_tvb, parameter_tree, parameter_item);
1729 break;
1730 case V7_CONGESTION_INDICATION_PARAMETER_TAG:
1731 dissect_congestion_indication_parameter(parameter_tvb, parameter_tree, parameter_item);
1732 break;
1733 case V7_CONCERNED_DESTINATION_PARAMETER_TAG:
1734 dissect_concerned_destination_parameter(parameter_tvb, parameter_tree, parameter_item);
1735 break;
1736 case V7_ROUTING_KEY_PARAMETER_TAG:
1737 dissect_routing_key_parameter(parameter_tvb, pinfo, tree, parameter_tree);
1738 break;
1739 case V7_REGISTRATION_RESULT_PARAMETER_TAG:
1740 dissect_v67_registration_result_parameter(parameter_tvb, parameter_tree);
1741 break;
1742 case V7_DEREGISTRATION_RESULT_PARAMETER_TAG:
1743 dissect_v67_deregistration_result_parameter(parameter_tvb, parameter_tree);
1744 break;
1745 case V7_LOCAL_ROUTING_KEY_IDENTIFIER_PARAMETER_TAG:
1746 dissect_local_routing_key_identifier_parameter(parameter_tvb, parameter_tree, parameter_item);
1747 break;
1748 case V7_DESTINATION_POINT_CODE_PARAMETER_TAG:
1749 dissect_destination_point_code_parameter(parameter_tvb, parameter_tree, parameter_item);
1750 break;
1751 case V7_SERVICE_INDICATORS_PARAMETER_TAG:
1752 dissect_service_indicators_parameter(parameter_tvb, parameter_tree, parameter_item);
1753 break;
1754 case V7_SUBSYSTEM_NUMBERS_PARAMETER_TAG:
1755 dissect_subsystem_numbers_parameter(parameter_tvb, parameter_tree, parameter_item);
1756 break;
1757 case V7_ORIGINATING_POINT_CODE_LIST_PARAMETER_TAG:
1758 dissect_originating_point_code_list_parameter(parameter_tvb, parameter_tree, parameter_item);
1759 break;
1760 case V7_CIRCUIT_RANGE_PARAMETER_TAG:
1761 dissect_circuit_range_parameter(parameter_tvb, parameter_tree, parameter_item);
1762 break;
1763 case V7_REGISTRATION_RESULTS_PARAMETER_TAG:
1764 dissect_registration_results_parameter(parameter_tvb, pinfo, tree, parameter_tree);
1765 break;
1766 case V7_DEREGISTRATION_RESULTS_PARAMETER_TAG:
1767 dissect_deregistration_results_parameter(parameter_tvb, pinfo, tree, parameter_tree);
1768 break;
1769 default:
1770 dissect_unknown_parameter(parameter_tvb, parameter_tree, parameter_item);
1771 break;
1772 };
1773
1774 if (padding_length > 0)
1775 proto_tree_add_item(parameter_tree, hf_parameter_padding, parameter_tvb, PARAMETER_HEADER_OFFSET + length, padding_length, ENC_NA);
1776 }
1777
1778 #define INFO_STRING_PARAMETER_TAG 0x0004
1779 #define ROUTING_CONTEXT_PARAMETER_TAG 0x0006
1780 #define DIAGNOSTIC_INFORMATION_PARAMETER_TAG 0x0007
1781 #define HEARTBEAT_DATA_PARAMETER_TAG 0x0009
1782 #define TRAFFIC_MODE_TYPE_PARAMETER_TAG 0x000b
1783 #define ERROR_CODE_PARAMETER_TAG 0x000c
1784 #define STATUS_PARAMETER_TAG 0x000d
1785 #define ASP_IDENTIFIER_PARAMETER_TAG 0x0011
1786 #define AFFECTED_POINT_CODE_PARAMETER_TAG 0x0012
1787 #define CORRELATION_IDENTIFIER_PARAMETER_TAG 0x0013
1788
1789 #define NETWORK_APPEARANCE_PARAMETER_TAG 0x0200
1790 #define USER_CAUSE_PARAMETER_TAG 0x0204
1791 #define CONGESTION_INDICATIONS_PARAMETER_TAG 0x0205
1792 #define CONCERNED_DESTINATION_PARAMETER_TAG 0x0206
1793 #define ROUTING_KEY_PARAMETER_TAG 0x0207
1794 #define REGISTRATION_RESULT_PARAMETER_TAG 0x0208
1795 #define DEREGISTRATION_RESULT_PARAMETER_TAG 0x0209
1796 #define LOCAL_ROUTING_KEY_IDENTIFIER_PARAMETER_TAG 0x020a
1797 #define DESTINATION_POINT_CODE_PARAMETER_TAG 0x020b
1798 #define SERVICE_INDICATORS_PARAMETER_TAG 0x020c
1799 #define ORIGINATING_POINT_CODE_LIST_PARAMETER_TAG 0x020e
1800 #define CIRCUIT_RANGE_PARAMETER_TAG 0x020f
1801 #define PROTOCOL_DATA_PARAMETER_TAG 0x0210
1802 #define REGISTRATION_STATUS_PARAMETER_TAG 0x0212
1803 #define DEREGISTRATION_STATUS_PARAMETER_TAG 0x0213
1804
1805 static const value_string parameter_tag_values[] = {
1806 { INFO_STRING_PARAMETER_TAG, "Info string" } ,
1807 { ROUTING_CONTEXT_PARAMETER_TAG, "Routing context" } ,
1808 { DIAGNOSTIC_INFORMATION_PARAMETER_TAG, "Diagnostic Information" } ,
1809 { HEARTBEAT_DATA_PARAMETER_TAG, "Heartbeat data" } ,
1810 { TRAFFIC_MODE_TYPE_PARAMETER_TAG, "Traffic mode type" } ,
1811 { ERROR_CODE_PARAMETER_TAG, "Error code" } ,
1812 { STATUS_PARAMETER_TAG, "Status" } ,
1813 { ASP_IDENTIFIER_PARAMETER_TAG, "ASP identifier" } ,
1814 { AFFECTED_POINT_CODE_PARAMETER_TAG, "Affected point code" } ,
1815 { CORRELATION_IDENTIFIER_PARAMETER_TAG, "Correlation identifier" } ,
1816 { NETWORK_APPEARANCE_PARAMETER_TAG, "Network appearance" } ,
1817 { USER_CAUSE_PARAMETER_TAG, "User / cause" } ,
1818 { CONGESTION_INDICATIONS_PARAMETER_TAG, "Congestion indications" } ,
1819 { CONCERNED_DESTINATION_PARAMETER_TAG, "Concerned destination" } ,
1820 { ROUTING_KEY_PARAMETER_TAG, "Routing key" } ,
1821 { REGISTRATION_RESULT_PARAMETER_TAG, "Registration result" } ,
1822 { DEREGISTRATION_RESULT_PARAMETER_TAG, "Deregistration result" } ,
1823 { LOCAL_ROUTING_KEY_IDENTIFIER_PARAMETER_TAG, "Local routing key identifier" } ,
1824 { DESTINATION_POINT_CODE_PARAMETER_TAG, "Destination point code" } ,
1825 { SERVICE_INDICATORS_PARAMETER_TAG, "Service indicators" } ,
1826 { ORIGINATING_POINT_CODE_LIST_PARAMETER_TAG, "Originating point code list" } ,
1827 { CIRCUIT_RANGE_PARAMETER_TAG, "Circuit range" } ,
1828 { PROTOCOL_DATA_PARAMETER_TAG, "Protocol data" } ,
1829 { REGISTRATION_STATUS_PARAMETER_TAG, "Registration status" } ,
1830 { DEREGISTRATION_STATUS_PARAMETER_TAG, "Deregistration status" } ,
1831 { 0, NULL } };
1832
1833 static void
dissect_parameter(tvbuff_t * parameter_tvb,packet_info * pinfo,proto_tree * tree,proto_tree * m3ua_tree)1834 dissect_parameter(tvbuff_t *parameter_tvb, packet_info *pinfo, proto_tree *tree, proto_tree *m3ua_tree)
1835 {
1836 guint16 tag, length, padding_length;
1837 proto_item *parameter_item;
1838 proto_tree *parameter_tree;
1839
1840 /* extract tag and length from the parameter */
1841 tag = tvb_get_ntohs(parameter_tvb, PARAMETER_TAG_OFFSET);
1842 length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET);
1843 padding_length = tvb_reported_length(parameter_tvb) - length;
1844
1845
1846 if (!tree && tag != PROTOCOL_DATA_PARAMETER_TAG)
1847 return; /* Nothing to do here */
1848
1849 /* create proto_tree stuff */
1850 parameter_tree = proto_tree_add_subtree(m3ua_tree, parameter_tvb, PARAMETER_HEADER_OFFSET, -1,
1851 ett_parameter, ¶meter_item, val_to_str_const(tag, parameter_tag_values, "Unknown parameter"));
1852
1853 /* add tag and length to the parameter tree */
1854 proto_tree_add_item(parameter_tree, hf_parameter_tag, parameter_tvb, PARAMETER_TAG_OFFSET, PARAMETER_TAG_LENGTH, ENC_BIG_ENDIAN);
1855 proto_tree_add_item(parameter_tree, hf_parameter_length, parameter_tvb, PARAMETER_LENGTH_OFFSET, PARAMETER_LENGTH_LENGTH, ENC_BIG_ENDIAN);
1856
1857 switch(tag) {
1858 case INFO_STRING_PARAMETER_TAG:
1859 dissect_info_string_parameter(parameter_tvb, parameter_tree, parameter_item);
1860 break;
1861 case ROUTING_CONTEXT_PARAMETER_TAG:
1862 dissect_routing_context_parameter(parameter_tvb, parameter_tree, parameter_item);
1863 break;
1864 case DIAGNOSTIC_INFORMATION_PARAMETER_TAG:
1865 dissect_diagnostic_information_parameter(parameter_tvb, parameter_tree, parameter_item);
1866 break;
1867 case HEARTBEAT_DATA_PARAMETER_TAG:
1868 dissect_heartbeat_data_parameter(parameter_tvb, parameter_tree, parameter_item);
1869 break;
1870 case TRAFFIC_MODE_TYPE_PARAMETER_TAG:
1871 dissect_traffic_mode_type_parameter(parameter_tvb, parameter_tree, parameter_item);
1872 break;
1873 case ERROR_CODE_PARAMETER_TAG:
1874 dissect_error_code_parameter(parameter_tvb, parameter_tree, parameter_item);
1875 break;
1876 case STATUS_PARAMETER_TAG:
1877 dissect_status_parameter(parameter_tvb, parameter_tree, parameter_item);
1878 break;
1879 case ASP_IDENTIFIER_PARAMETER_TAG:
1880 dissect_asp_identifier_parameter(parameter_tvb, parameter_tree, parameter_item);
1881 break;
1882 case AFFECTED_POINT_CODE_PARAMETER_TAG:
1883 dissect_affected_destinations_parameter(parameter_tvb, parameter_tree, parameter_item);
1884 break;
1885 case NETWORK_APPEARANCE_PARAMETER_TAG:
1886 dissect_network_appearance_parameter(parameter_tvb, parameter_tree, parameter_item);
1887 break;
1888 case USER_CAUSE_PARAMETER_TAG:
1889 dissect_user_cause_parameter(parameter_tvb, parameter_tree, parameter_item);
1890 break;
1891 case CONGESTION_INDICATIONS_PARAMETER_TAG:
1892 dissect_congestion_indication_parameter(parameter_tvb, parameter_tree, parameter_item);
1893 break;
1894 case CONCERNED_DESTINATION_PARAMETER_TAG:
1895 dissect_concerned_destination_parameter(parameter_tvb, parameter_tree, parameter_item);
1896 break;
1897 case ROUTING_KEY_PARAMETER_TAG:
1898 dissect_routing_key_parameter(parameter_tvb, pinfo, tree, parameter_tree);
1899 break;
1900 case REGISTRATION_RESULT_PARAMETER_TAG:
1901 dissect_registration_result_parameter(parameter_tvb, pinfo, tree, parameter_tree);
1902 break;
1903 case DEREGISTRATION_RESULT_PARAMETER_TAG:
1904 dissect_deregistration_result_parameter(parameter_tvb, pinfo, tree, parameter_tree);
1905 break;
1906 case LOCAL_ROUTING_KEY_IDENTIFIER_PARAMETER_TAG:
1907 dissect_local_routing_key_identifier_parameter(parameter_tvb, parameter_tree, parameter_item);
1908 break;
1909 case DESTINATION_POINT_CODE_PARAMETER_TAG:
1910 dissect_destination_point_code_parameter(parameter_tvb, parameter_tree, parameter_item);
1911 break;
1912 case SERVICE_INDICATORS_PARAMETER_TAG:
1913 dissect_service_indicators_parameter(parameter_tvb, parameter_tree, parameter_item);
1914 break;
1915 case ORIGINATING_POINT_CODE_LIST_PARAMETER_TAG:
1916 dissect_originating_point_code_list_parameter(parameter_tvb, parameter_tree, parameter_item);
1917 break;
1918 case CIRCUIT_RANGE_PARAMETER_TAG:
1919 dissect_circuit_range_parameter(parameter_tvb, parameter_tree, parameter_item);
1920 break;
1921 case PROTOCOL_DATA_PARAMETER_TAG:
1922 dissect_protocol_data_parameter(parameter_tvb, pinfo, tree, parameter_tree, parameter_item);
1923 break;
1924 case CORRELATION_IDENTIFIER_PARAMETER_TAG:
1925 dissect_correlation_identifier_parameter(parameter_tvb, parameter_tree, parameter_item);
1926 break;
1927 case REGISTRATION_STATUS_PARAMETER_TAG:
1928 dissect_registration_status_parameter(parameter_tvb, parameter_tree, parameter_item);
1929 break;
1930 case DEREGISTRATION_STATUS_PARAMETER_TAG:
1931 dissect_deregistration_status_parameter(parameter_tvb, parameter_tree, parameter_item);
1932 break;
1933 default:
1934 dissect_unknown_parameter(parameter_tvb, parameter_tree, parameter_item);
1935 break;
1936 };
1937
1938 if (padding_length > 0)
1939 proto_tree_add_item(parameter_tree, hf_parameter_padding, parameter_tvb, PARAMETER_HEADER_OFFSET + length, padding_length, ENC_NA);
1940 }
1941
1942 static void
dissect_parameters(tvbuff_t * parameters_tvb,packet_info * pinfo,proto_tree * tree,proto_tree * m3ua_tree)1943 dissect_parameters(tvbuff_t *parameters_tvb, packet_info *pinfo, proto_tree *tree, proto_tree *m3ua_tree)
1944 {
1945 gint offset, length, total_length, remaining_length;
1946 tvbuff_t *parameter_tvb;
1947
1948 offset = 0;
1949 while((remaining_length = tvb_reported_length_remaining(parameters_tvb, offset))) {
1950 length = tvb_get_ntohs(parameters_tvb, offset + PARAMETER_LENGTH_OFFSET);
1951 total_length = ADD_PADDING(length);
1952 if (remaining_length >= length)
1953 total_length = MIN(total_length, remaining_length);
1954 /* create a tvb for the parameter including the padding bytes */
1955 parameter_tvb = tvb_new_subset_length(parameters_tvb, offset, total_length);
1956 switch(version) {
1957 case M3UA_V5:
1958 dissect_v5_parameter(parameter_tvb, pinfo, tree, m3ua_tree);
1959 break;
1960 case M3UA_V6:
1961 dissect_v6_parameter(parameter_tvb, pinfo, tree, m3ua_tree);
1962 break;
1963 case M3UA_V7:
1964 dissect_v7_parameter(parameter_tvb, pinfo, tree, m3ua_tree);
1965 break;
1966 case M3UA_RFC:
1967 dissect_parameter(parameter_tvb, pinfo, tree, m3ua_tree);
1968 break;
1969 }
1970 /* get rid of the handled parameter */
1971 offset += total_length;
1972 }
1973 }
1974
1975
1976 static void
dissect_message(tvbuff_t * message_tvb,packet_info * pinfo,proto_tree * tree,proto_tree * m3ua_tree)1977 dissect_message(tvbuff_t *message_tvb, packet_info *pinfo, proto_tree *tree, proto_tree *m3ua_tree)
1978 {
1979 tvbuff_t *common_header_tvb, *parameters_tvb;
1980
1981 common_header_tvb = tvb_new_subset_length(message_tvb, 0, COMMON_HEADER_LENGTH);
1982 parameters_tvb = tvb_new_subset_remaining(message_tvb, COMMON_HEADER_LENGTH);
1983 if (version == M3UA_V5)
1984 dissect_v5_common_header(common_header_tvb, pinfo, m3ua_tree);
1985 else
1986 dissect_common_header(common_header_tvb, pinfo, m3ua_tree);
1987
1988 /* Need to dissect (certain) parameters even when !tree, so subdissectors
1989 * (e.g., MTP3) are always called.
1990 */
1991 dissect_parameters(parameters_tvb, pinfo, tree, m3ua_tree);
1992 }
1993
1994 static int
dissect_m3ua(tvbuff_t * message_tvb,packet_info * pinfo,proto_tree * tree,void * data _U_)1995 dissect_m3ua(tvbuff_t *message_tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
1996 {
1997 proto_item *m3ua_item;
1998 proto_tree *m3ua_tree;
1999
2000
2001 /* make entry in the Protocol column on summary display */
2002 switch(version) {
2003 case M3UA_V5:
2004 col_set_str(pinfo->cinfo, COL_PROTOCOL, "M3UA (ID 05)");
2005 break;
2006 case M3UA_V6:
2007 col_set_str(pinfo->cinfo, COL_PROTOCOL, "M3UA (ID 06)");
2008 break;
2009 case M3UA_V7:
2010 col_set_str(pinfo->cinfo, COL_PROTOCOL, "M3UA (ID 07)");
2011 break;
2012 case M3UA_RFC:
2013 col_set_str(pinfo->cinfo, COL_PROTOCOL, "M3UA (RFC 4666)");
2014 break;
2015 };
2016
2017 /* create the m3ua protocol tree */
2018 m3ua_item = proto_tree_add_item(tree, proto_m3ua, message_tvb, 0, -1, ENC_NA);
2019 m3ua_tree = proto_item_add_subtree(m3ua_item, ett_m3ua);
2020
2021 /* dissect the message */
2022 dissect_message(message_tvb, pinfo, tree, m3ua_tree);
2023 return tvb_captured_length(message_tvb);
2024 }
2025
2026 /* Register the protocol with Wireshark */
2027 void
proto_register_m3ua(void)2028 proto_register_m3ua(void)
2029 {
2030
2031 /* Setup list of header fields */
2032 static hf_register_info hf[] = {
2033 { &hf_version, { "Version", "m3ua.version", FT_UINT8, BASE_DEC, VALS(protocol_version_values), 0x0, NULL, HFILL } },
2034 { &hf_reserved, { "Reserved", "m3ua.reserved", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL } },
2035 { &hf_v5_message_class, { "Message class", "m3ua.message_class", FT_UINT8, BASE_DEC, VALS(v5_message_class_values), 0x0, NULL, HFILL } },
2036 { &hf_message_class, { "Message class", "m3ua.message_class", FT_UINT8, BASE_DEC, VALS(message_class_values), 0x0, NULL, HFILL } },
2037 { &hf_message_type, { "Message Type", "m3ua.message_type", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } },
2038 { &hf_message_length, { "Message length", "m3ua.message_length", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
2039 { &hf_v5_parameter_tag, { "Parameter Tag", "m3ua.parameter_tag", FT_UINT16, BASE_DEC, VALS(v5_parameter_tag_values), 0x0, NULL, HFILL } },
2040 { &hf_v6_parameter_tag, { "Parameter Tag", "m3ua.parameter_tag", FT_UINT16, BASE_DEC, VALS(v6_parameter_tag_values), 0x0, NULL, HFILL } },
2041 { &hf_v7_parameter_tag, { "Parameter Tag", "m3ua.parameter_tag", FT_UINT16, BASE_DEC, VALS(v7_parameter_tag_values), 0x0, NULL, HFILL } },
2042 { &hf_parameter_tag, { "Parameter Tag", "m3ua.parameter_tag", FT_UINT16, BASE_DEC, VALS(parameter_tag_values), 0x0, NULL, HFILL } },
2043 { &hf_parameter_length, { "Parameter length", "m3ua.parameter_length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } },
2044 { &hf_parameter_value, { "Parameter value", "m3ua.parameter_value", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } },
2045 { &hf_parameter_padding, { "Padding", "m3ua.parameter_padding", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } },
2046 #if 0
2047 { &hf_parameter_trailer, { "Trailer", "m3ua.parameter_trailer", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } },
2048 #endif
2049 { &hf_network_appearance, { "Network appearance", "m3ua.network_appearance", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
2050 { &hf_info_string, { "Info string", "m3ua.info_string", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } },
2051 { &hf_routing_context, { "Routing context", "m3ua.routing_context", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
2052 { &hf_diagnostic_information, { "Diagnostic information", "m3ua.diagnostic_information", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } },
2053 { &hf_heartbeat_data, { "Heartbeat data", "m3ua.heartbeat_data", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } },
2054 { &hf_v5_error_code, { "Error code", "m3ua.error_code", FT_UINT32, BASE_DEC, VALS(v5_error_code_values), 0x0, NULL, HFILL } },
2055 { &hf_v6_error_code, { "Error code", "m3ua.error_code", FT_UINT32, BASE_DEC, VALS(v6_error_code_values), 0x0, NULL, HFILL } },
2056 { &hf_v7_error_code, { "Error code", "m3ua.error_code", FT_UINT32, BASE_DEC, VALS(v7_error_code_values), 0x0, NULL, HFILL } },
2057 { &hf_error_code, { "Error code", "m3ua.error_code", FT_UINT32, BASE_DEC, VALS(error_code_values), 0x0, NULL, HFILL } },
2058 { &hf_status_type, { "Status type", "m3ua.status_type", FT_UINT16, BASE_DEC, VALS(status_type_values), 0x0, NULL, HFILL } },
2059 { &hf_status_info, { "Status info", "m3ua.status_info", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } },
2060 { &hf_asp_identifier, { "ASP identifier", "m3ua.asp_identifier", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
2061 { &hf_affected_point_code_mask, { "Mask", "m3ua.affected_point_code_mask", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } },
2062 { &hf_affected_point_code_pc, { "Affected point code", "m3ua.affected_point_code_pc", FT_UINT24, BASE_DEC, NULL, 0x0, NULL, HFILL } },
2063 { &hf_cause, { "Unavailability cause", "m3ua.unavailability_cause", FT_UINT16, BASE_DEC, VALS(unavailability_cause_values), 0x0, NULL, HFILL } },
2064 { &hf_user, { "User Identity", "m3ua.user_identity", FT_UINT16, BASE_DEC, VALS(user_identity_values), 0x0, NULL, HFILL } },
2065 { &hf_reason, { "Reason", "m3ua.reason", FT_UINT32, BASE_DEC, VALS(reason_values), 0x0, NULL, HFILL } },
2066 { &hf_v5_traffic_mode_type, { "Traffic mode Type", "m3ua.traffic_mode_type", FT_UINT32, BASE_DEC, VALS(v5_traffic_mode_type_values), 0x0, NULL, HFILL } },
2067 { &hf_v6_traffic_mode_type, { "Traffic mode Type", "m3ua.traffic_mode_type", FT_UINT32, BASE_DEC, VALS(v6_traffic_mode_type_values), 0x0, NULL, HFILL } },
2068 { &hf_v7_traffic_mode_type, { "Traffic mode Type", "m3ua.traffic_mode_type", FT_UINT32, BASE_DEC, VALS(v7_traffic_mode_type_values), 0x0, NULL, HFILL } },
2069 { &hf_traffic_mode_type, { "Traffic mode Type", "m3ua.traffic_mode_type", FT_UINT32, BASE_DEC, VALS(traffic_mode_type_values), 0x0, NULL, HFILL } },
2070 { &hf_congestion_reserved, { "Reserved", "m3ua.congestion_reserved", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } },
2071 { &hf_congestion_level, { "Congestion level", "m3ua.congestion_level", FT_UINT8, BASE_DEC, VALS(congestion_level_values), 0x0, NULL, HFILL } },
2072 { &hf_concerned_dest_reserved, { "Reserved", "m3ua.concerned_reserved", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } },
2073 { &hf_concerned_dest_pc, { "Concerned DPC", "m3ua.concerned_dpc", FT_UINT24, BASE_DEC, NULL, 0x0, NULL, HFILL } },
2074 { &hf_local_rk_identifier, { "Local routing key identifier", "m3ua.local_rk_identifier", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
2075 { &hf_dpc_mask, { "Mask", "m3ua.dpc_mask", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } },
2076 { &hf_dpc_pc, { "Destination point code", "m3ua.dpc_pc", FT_UINT24, BASE_DEC, NULL, 0x0, NULL, HFILL } },
2077 { &hf_si, { "Service indicator", "m3ua.si", FT_UINT8, BASE_DEC, VALS(user_identity_values), 0x0, NULL, HFILL } },
2078 { &hf_ssn, { "Subsystem number", "m3ua.ssn", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } },
2079 { &hf_opc_list_mask, { "Mask", "m3ua.opc_list_mask", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } },
2080 { &hf_opc_list_pc, { "Originating point code", "m3ua.opc_list_pc", FT_UINT24, BASE_DEC, NULL, 0x0, NULL, HFILL } },
2081 { &hf_cic_range_mask, { "Mask", "m3ua.cic_range_mask", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } },
2082 { &hf_cic_range_pc, { "Originating point code", "m3ua.cic_range_pc", FT_UINT24, BASE_DEC, NULL, 0x0, NULL, HFILL } },
2083 { &hf_cic_range_lower, { "Lower CIC value", "m3ua.cic_range_lower", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } },
2084 { &hf_cic_range_upper, { "Upper CIC value", "m3ua.cic_range_upper", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } },
2085 { &hf_li, { "Length indicator", "m3ua.protocol_data_2_li", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } },
2086 { &hf_protocol_data_opc, { "OPC", "m3ua.protocol_data_opc", FT_UINT32, BASE_DEC, NULL, 0x0, "Originating Point Code", HFILL } },
2087 { &hf_protocol_data_dpc, { "DPC", "m3ua.protocol_data_dpc", FT_UINT32, BASE_DEC, NULL, 0x0, "Destination Point Code", HFILL } },
2088 { &hf_protocol_data_mtp3_opc, { "OPC", "mtp3.opc", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
2089 { &hf_protocol_data_mtp3_dpc, { "DPC", "mtp3.dpc", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
2090 { &hf_protocol_data_mtp3_pc, { "PC", "mtp3.pc", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
2091 { &hf_protocol_data_si, { "SI", "m3ua.protocol_data_si", FT_UINT8, BASE_DEC, VALS(mtp3_service_indicator_code_short_vals), 0x0, "Service Indicator", HFILL } },
2092 { &hf_protocol_data_ni, { "NI", "m3ua.protocol_data_ni", FT_UINT8, BASE_DEC, VALS(mtp3_network_indicator_vals), 0x0, "Network Indicator", HFILL } },
2093 { &hf_protocol_data_mtp3_ni, { "NI", "mtp3.ni", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } },
2094 { &hf_protocol_data_mp, { "MP", "m3ua.protocol_data_mp", FT_UINT8, BASE_DEC, NULL, 0x0, "Message Priority", HFILL } },
2095 { &hf_protocol_data_sls, { "SLS", "m3ua.protocol_data_sls", FT_UINT8, BASE_DEC, NULL, 0x0, "Signalling Link Selection", HFILL } },
2096 { &hf_protocol_data_mtp3_sls, { "SLS", "mtp3.sls", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } },
2097 { &hf_correlation_identifier, { "Correlation Identifier", "m3ua.correlation_identifier", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
2098 { &hf_registration_status, { "Registration status", "m3ua.registration_status", FT_UINT32, BASE_DEC, VALS(registration_status_values), 0x0, NULL, HFILL } },
2099 { &hf_deregistration_status, { "Deregistration status", "m3ua.deregistration_status", FT_UINT32, BASE_DEC, VALS(deregistration_status_values), 0x0, NULL, HFILL } },
2100 { &hf_registration_result_identifier, { "Local RK-identifier value", "m3ua.registration_result_identifier", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
2101 { &hf_registration_result_status, { "Registration status", "m3ua.registration_results_status", FT_UINT32, BASE_DEC, VALS(registration_result_status_values), 0x0, NULL, HFILL } },
2102 { &hf_registration_result_context, { "Routing context", "m3ua.registration_result_routing_context", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
2103 { &hf_v6_deregistration_result_status, { "De-Registration status", "m3ua.deregistration_results_status", FT_UINT32, BASE_DEC, VALS(v6_deregistration_result_status_values), 0x0, NULL, HFILL } },
2104 { &hf_v6_deregistration_result_context, { "Routing context", "m3ua.deregistration_result_routing_context", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
2105 { &hf_heuristic_standard, { "Heuristic standard", "m3ua.heuristic_standard", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
2106 };
2107
2108 /* Setup protocol subtree array */
2109 static gint *ett[] = {
2110 &ett_m3ua,
2111 &ett_parameter,
2112 &ett_mtp3_equiv,
2113 &ett_q708_opc,
2114 &ett_q708_dpc,
2115 };
2116
2117 static const enum_val_t options[] = {
2118 { "draft-5", "Internet Draft version 5", M3UA_V5 },
2119 { "draft-6", "Internet Draft version 6", M3UA_V6 },
2120 { "draft-7", "Internet Draft version 7", M3UA_V7 },
2121 { "rfc4666", "RFC 4666", M3UA_RFC },
2122 { NULL, NULL, 0 }
2123 };
2124
2125 /* Register the protocol name and description */
2126 proto_m3ua = proto_register_protocol("MTP 3 User Adaptation Layer", "M3UA", "m3ua");
2127 m3ua_handle = register_dissector("m3ua", dissect_m3ua, proto_m3ua);
2128
2129 m3ua_module = prefs_register_protocol(proto_m3ua, NULL);
2130 prefs_register_enum_preference(m3ua_module, "version", "M3UA Version", "Version used by Wireshark", &version, options, FALSE);
2131
2132 /* Required function calls to register the header fields and subtrees used */
2133 proto_register_field_array(proto_m3ua, hf, array_length(hf));
2134 proto_register_subtree_array(ett, array_length(ett));
2135
2136 m3ua_tap = register_tap("m3ua");
2137
2138 }
2139
2140 void
proto_reg_handoff_m3ua(void)2141 proto_reg_handoff_m3ua(void)
2142 {
2143
2144 /*
2145 * Get a handle for the MTP3 dissector.
2146 */
2147 mtp3_handle = find_dissector_add_dependency("mtp3", proto_m3ua);
2148 dissector_add_uint("sctp.ppi", M3UA_PAYLOAD_PROTOCOL_ID, m3ua_handle);
2149 dissector_add_uint("sctp.port", SCTP_PORT_M3UA, m3ua_handle);
2150
2151 si_dissector_table = find_dissector_table("mtp3.service_indicator");
2152
2153 ss7pc_address_type = address_type_get_by_name("AT_SS7PC");
2154 }
2155
2156 /*
2157 * Editor modelines - https://www.wireshark.org/tools/modelines.html
2158 *
2159 * Local Variables:
2160 * c-basic-offset: 2
2161 * tab-width: 8
2162 * indent-tabs-mode: nil
2163 * End:
2164 *
2165 * ex: set shiftwidth=2 tabstop=8 expandtab:
2166 * :indentSize=2:tabSize=8:noTabs=true:
2167 */
2168