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Revert "TODO epan/dissectors/asn1/kerberos/packet-kerberos-template.c new GSS flags"
[wireshark-sm.git] / epan / dissectors / packet-btbnep.c
bloba7eb886785258e333492e7651f178fe46b9376d0
1 /* packet-btbnep.c
2 * Routines for Bluetooth BNEP dissection
3 *
4 * Copyright 2012, Michal Labedzki for Tieto Corporation
5 *
6 * Wireshark - Network traffic analyzer
7 * By Gerald Combs <gerald@wireshark.org>
8 * Copyright 1998 Gerald Combs
9 *
10 * SPDX-License-Identifier: GPL-2.0-or-later
11 */
12
13 #include "config.h"
14
15 #include <epan/packet.h>
16 #include <epan/prefs.h>
17 #include <epan/etypes.h>
18 #include <epan/expert.h>
19
20 #include "packet-bluetooth.h"
21 #include "packet-btl2cap.h"
22 #include "packet-btsdp.h"
23
24 #define BNEP_TYPE_GENERAL_ETHERNET 0x00
25 #define BNEP_TYPE_CONTROL 0x01
26 #define BNEP_TYPE_COMPRESSED_ETHERNET 0x02
27 #define BNEP_TYPE_COMPRESSED_ETHERNET_SOURCE_ONLY 0x03
28 #define BNEP_TYPE_COMPRESSED_ETHERNET_DESTINATION_ONLY 0x04
29 #define RESERVED_802 0x7F
30
31 static int proto_btbnep;
32 static int hf_btbnep_bnep_type;
33 static int hf_btbnep_extension_flag;
34 static int hf_btbnep_extension_type;
35 static int hf_btbnep_extension_length;
36 static int hf_btbnep_dst;
37 static int hf_btbnep_src;
38 static int hf_btbnep_len;
39 static int hf_btbnep_invalid_lentype;
40 static int hf_btbnep_type;
41 static int hf_btbnep_addr;
42 static int hf_btbnep_lg;
43 static int hf_btbnep_ig;
44 static int hf_btbnep_control_type;
45 static int hf_btbnep_unknown_control_type;
46 static int hf_btbnep_uuid_size;
47 static int hf_btbnep_destination_service_uuid;
48 static int hf_btbnep_source_service_uuid;
49 static int hf_btbnep_setup_connection_response_message;
50 static int hf_btbnep_filter_net_type_response_message;
51 static int hf_btbnep_filter_multi_addr_response_message;
52 static int hf_btbnep_list_length;
53 static int hf_btbnep_network_type_start;
54 static int hf_btbnep_network_type_end;
55 static int hf_btbnep_multicast_address_start;
56 static int hf_btbnep_multicast_address_end;
57
58 static int ett_btbnep;
59 static int ett_addr;
60
61 static expert_field ei_btbnep_src_not_group_address;
62 static expert_field ei_btbnep_invalid_lentype;
63 static expert_field ei_btbnep_len_past_end;
64
65 static dissector_handle_t btbnep_handle;
66
67 static bool top_dissect = true;
68
69 static dissector_handle_t llc_handle;
70 static dissector_handle_t ipx_handle;
71 static dissector_handle_t ethertype_handle;
72
73 static const true_false_string ig_tfs = {
74 "Group address (multicast/broadcast)",
75 "Individual address (unicast)"
76 };
77
78 static const true_false_string lg_tfs = {
79 "Locally administered address (this is NOT the factory default)",
80 "Globally unique address (factory default)"
81 };
82
83 static const value_string bnep_type_vals[] = {
84 { 0x00, "General Ethernet" },
85 { 0x01, "Control" },
86 { 0x02, "Compressed Ethernet" },
87 { 0x03, "Compressed Ethernet Source Only" },
88 { 0x04, "Compressed Ethernet Destination Only" },
89 { 0x7F, "Reserved for 802.2 LLC Packets for IEEE 802.15.1 WG" },
90 { 0, NULL }
91 };
92
93 static const value_string control_type_vals[] = {
94 { 0x00, "Command Not Understood" },
95 { 0x01, "Setup Connection Request" },
96 { 0x02, "Setup Connection Response" },
97 { 0x03, "Filter Net Type Set" },
98 { 0x04, "Filter Net Type Response" },
99 { 0x05, "Filter Multi Addr Set" },
100 { 0x06, "Filter Multi Addr Response" },
101 { 0, NULL }
102 };
103
104 static const value_string extension_type_vals[] = {
105 { 0x00, "Extension Control" },
106 { 0, NULL }
107 };
108
109 static const value_string setup_connection_response_message_vals[] = {
110 { 0x0000, "Operation Successful" },
111 { 0x0001, "Operation FAIL: Invalid Destination Service UUID" },
112 { 0x0002, "Operation FAIL: Invalid Source Service UUID" },
113 { 0x0003, "Operation FAIL: Invalid Service UUID Size" },
114 { 0x0004, "Operation FAIL: Connection Not Allowed" },
115 { 0, NULL }
116 };
117
118 static const value_string filter_net_type_response_message_vals[] = {
119 { 0x0000, "Operation Successful" },
120 { 0x0001, "Unsupported Request" },
121 { 0x0002, "Operation FAIL: Invalid Networking Protocol Type Range" },
122 { 0x0003, "Operation FAIL: Too many filters" },
123 { 0x0004, "Operation FAIL: Unable to fulfill request due to security reasons" },
124 { 0, NULL }
125 };
126
127 static const value_string filter_multi_addr_response_message_vals[] = {
128 { 0x0000, "Operation Successful" },
129 { 0x0001, "Unsupported Request" },
130 { 0x0002, "Operation FAIL: Invalid Multicast Address" },
131 { 0x0003, "Operation FAIL: Too many filters" },
132 { 0x0004, "Operation FAIL: Unable to fulfill request due to security reasons" },
133 { 0, NULL }
134 };
135
136 void proto_register_btbnep(void);
137 void proto_reg_handoff_btbnep(void);
138
139 static int
140 dissect_control(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
141 {
142 proto_item *pitem = NULL;
143 unsigned control_type;
144 uint8_t unknown_control_type;
145 uint8_t uuid_size;
146 uint16_t uuid_dst;
147 uint16_t uuid_src;
148 uint16_t response_message;
149 uint16_t list_length;
150 unsigned i_item;
151
152 proto_tree_add_item(tree, hf_btbnep_control_type, tvb, offset, 1, ENC_BIG_ENDIAN);
153 control_type = tvb_get_uint8(tvb, offset);
154 offset += 1;
155
156 col_append_fstr(pinfo->cinfo, COL_INFO, " - %s", val_to_str_const(control_type, control_type_vals, "Unknown type"));
157
158 switch(control_type) {
159 case 0x00: /* Command Not Understood */
160 proto_tree_add_item(tree, hf_btbnep_unknown_control_type, tvb, offset, 1, ENC_BIG_ENDIAN);
161 unknown_control_type = tvb_get_uint8(tvb, offset);
162 offset += 1;
163
164 col_append_fstr(pinfo->cinfo, COL_INFO, " - Unknown(%s)", val_to_str_const(unknown_control_type, control_type_vals, "Unknown type"));
165
166 break;
167 case 0x01: /* Setup Connection Request */
168 proto_tree_add_item(tree, hf_btbnep_uuid_size, tvb, offset, 1, ENC_BIG_ENDIAN);
169 uuid_size = tvb_get_uint8(tvb, offset);
170 offset += 1;
171
172 pitem = proto_tree_add_item(tree, hf_btbnep_destination_service_uuid, tvb, offset, uuid_size, ENC_NA);
173 uuid_dst = tvb_get_ntohs(tvb, offset);
174 proto_item_append_text(pitem, " (%s)", val_to_str_ext_const(uuid_dst, &bluetooth_uuid_vals_ext, "Unknown uuid"));
175 offset += uuid_size;
176
177 pitem = proto_tree_add_item(tree, hf_btbnep_source_service_uuid, tvb, offset, uuid_size, ENC_NA);
178 uuid_src = tvb_get_ntohs(tvb, offset);
179 proto_item_append_text(pitem, " (%s)", val_to_str_ext_const(uuid_src, &bluetooth_uuid_vals_ext, "Unknown uuid"));
180 offset += uuid_size;
181
182 col_append_fstr(pinfo->cinfo, COL_INFO, " - dst: <%s>, src: <%s>",
183 val_to_str_ext_const(uuid_dst, &bluetooth_uuid_vals_ext, "Unknown uuid"),
184 val_to_str_ext_const(uuid_src, &bluetooth_uuid_vals_ext, "Unknown uuid"));
185 break;
186 case 0x02: /* Setup Connection Response */
187 proto_tree_add_item(tree, hf_btbnep_setup_connection_response_message, tvb, offset, 2, ENC_BIG_ENDIAN);
188 response_message = tvb_get_ntohs(tvb, offset);
189 offset += 2;
190 col_append_fstr(pinfo->cinfo, COL_INFO, " - %s",
191 val_to_str_const(response_message, setup_connection_response_message_vals, "Unknown response message"));
192 break;
193 case 0x03: /* Filter Net Type Set */
194 proto_tree_add_item(tree, hf_btbnep_list_length, tvb, offset, 2, ENC_BIG_ENDIAN);
195 list_length = tvb_get_ntohs(tvb, offset);
196 offset += 2;
197
198 for (i_item = 0; i_item + 4 > i_item && i_item < list_length; i_item += 4) {
199 proto_tree_add_item(tree, hf_btbnep_network_type_start, tvb, offset, 2, ENC_BIG_ENDIAN);
200 offset += 2;
201
202 proto_tree_add_item(tree, hf_btbnep_network_type_end, tvb, offset, 2, ENC_BIG_ENDIAN);
203 offset += 2;
204 }
205 break;
206 case 0x04: /* Filter Net Type Response */
207 proto_tree_add_item(tree, hf_btbnep_filter_net_type_response_message, tvb, offset, 2, ENC_BIG_ENDIAN);
208 response_message = tvb_get_ntohs(tvb, offset);
209 offset += 2;
210 col_append_fstr(pinfo->cinfo, COL_INFO, " - %s",
211 val_to_str_const(response_message, filter_net_type_response_message_vals, "Unknown response message"));
212 break;
213 case 0x05: /*Filter Multi Addr Set*/
214 proto_tree_add_item(tree, hf_btbnep_list_length, tvb, offset, 2, ENC_BIG_ENDIAN);
215 list_length = tvb_get_ntohs(tvb, offset);
216 offset += 2;
217
218 for (i_item = 0; i_item + 12 > i_item && i_item < list_length; i_item += 12) {
219 proto_tree_add_item(tree, hf_btbnep_multicast_address_start, tvb, offset, FT_ETHER_LEN, ENC_NA);
220 offset += FT_ETHER_LEN;
221
222 proto_tree_add_item(tree, hf_btbnep_multicast_address_end, tvb, offset, FT_ETHER_LEN, ENC_NA);
223 offset += FT_ETHER_LEN;
224 }
225 break;
226 case 0x06: /* Filter Multi Addr Response */
227 proto_tree_add_item(tree, hf_btbnep_filter_multi_addr_response_message, tvb, offset, 2, ENC_BIG_ENDIAN);
228 response_message = tvb_get_ntohs(tvb, offset);
229 offset += 2;
230 col_append_fstr(pinfo->cinfo, COL_INFO, " - %s",
231 val_to_str_const(response_message, filter_multi_addr_response_message_vals, "Unknown response message"));
232 break;
233
234 };
235
236 return offset;
237 }
238
239 static int
240 // NOLINTNEXTLINE(misc-no-recursion)
241 dissect_extension(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
242 {
243 uint8_t extension_flag;
244 uint8_t extension_type;
245 uint16_t extension_length;
246 uint8_t type;
247
248 proto_tree_add_item(tree, hf_btbnep_extension_type, tvb, offset, 1, ENC_BIG_ENDIAN);
249 proto_tree_add_item(tree, hf_btbnep_extension_flag, tvb, offset, 1, ENC_BIG_ENDIAN);
250 type = tvb_get_uint8(tvb, offset);
251 extension_flag = type & 0x01;
252 extension_type = type >> 1;
253 offset += 1;
254
255 proto_tree_add_item(tree, hf_btbnep_extension_length, tvb, offset, 1, ENC_BIG_ENDIAN);
256 extension_length = tvb_get_ntohs(tvb, offset);
257 offset += 2;
258
259 if (extension_type == 0x00) {
260 /* Extension Control */
261 offset = dissect_control(tvb, pinfo, tree, offset);
262 } else {
263 offset += extension_length;
264 }
265
266 increment_dissection_depth(pinfo);
267 if (extension_flag) offset = dissect_extension(tvb, pinfo, tree, offset);
268 decrement_dissection_depth(pinfo);
269
270 return offset;
271 }
272
273 static int
274 dissect_btbnep(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
275 {
276 proto_item *pi;
277 proto_tree *btbnep_tree;
278 int offset = 0;
279 unsigned bnep_type;
280 unsigned extension_flag;
281 unsigned len_type = 0;
282 proto_item *addr_item;
283 proto_tree *addr_tree = NULL;
284 proto_item *length_ti = NULL;
285
286 pi = proto_tree_add_item(tree, proto_btbnep, tvb, offset, -1, ENC_NA);
287 btbnep_tree = proto_item_add_subtree(pi, ett_btbnep);
288
289 col_set_str(pinfo->cinfo, COL_PROTOCOL, "BNEP");
290 col_clear(pinfo->cinfo, COL_INFO);
291
292 switch (pinfo->p2p_dir) {
293 case P2P_DIR_SENT:
294 col_set_str(pinfo->cinfo, COL_INFO, "Sent ");
295 break;
296 case P2P_DIR_RECV:
297 col_set_str(pinfo->cinfo, COL_INFO, "Rcvd ");
298 break;
299 default:
300 col_set_str(pinfo->cinfo, COL_INFO, "UnknownDirection ");
301 break;
302 }
303
304 proto_tree_add_item(btbnep_tree, hf_btbnep_extension_flag, tvb, offset, 1, ENC_BIG_ENDIAN);
305 proto_tree_add_item(btbnep_tree, hf_btbnep_bnep_type, tvb, offset, 1, ENC_BIG_ENDIAN);
306 bnep_type = tvb_get_uint8(tvb, offset);
307 extension_flag = bnep_type & 0x80;
308 bnep_type = bnep_type & 0x7F;
309 offset += 1;
310
311 col_append_str(pinfo->cinfo, COL_INFO, val_to_str_const(bnep_type, bnep_type_vals, "Unknown type"));
312 if (extension_flag) col_append_str(pinfo->cinfo, COL_INFO, "+E");
313
314 if (bnep_type == BNEP_TYPE_GENERAL_ETHERNET || bnep_type == BNEP_TYPE_COMPRESSED_ETHERNET_DESTINATION_ONLY) {
315 set_address_tvb(&pinfo->dl_dst, AT_ETHER, 6, tvb, offset);
316 copy_address_shallow(&pinfo->dst, &pinfo->dl_dst);
317
318 addr_item = proto_tree_add_item(btbnep_tree, hf_btbnep_dst, tvb, offset, FT_ETHER_LEN, ENC_NA);
319 addr_tree = proto_item_add_subtree(addr_item, ett_addr);
320 proto_tree_add_item(addr_tree, hf_btbnep_addr, tvb, offset, FT_ETHER_LEN, ENC_NA);
321 proto_tree_add_item(addr_tree, hf_btbnep_lg, tvb, offset, 3, ENC_BIG_ENDIAN);
322 proto_tree_add_item(addr_tree, hf_btbnep_ig, tvb, offset, 3, ENC_BIG_ENDIAN);
323 offset += FT_ETHER_LEN;
324 }
325
326 if (bnep_type == BNEP_TYPE_GENERAL_ETHERNET || bnep_type == BNEP_TYPE_COMPRESSED_ETHERNET_SOURCE_ONLY) {
327 set_address_tvb(&pinfo->dl_src, AT_ETHER, 6, tvb, offset);
328 copy_address_shallow(&pinfo->src, &pinfo->dl_src);
329
330 addr_item = proto_tree_add_item(btbnep_tree, hf_btbnep_src, tvb, offset, FT_ETHER_LEN, ENC_NA);
331 addr_tree = proto_item_add_subtree(addr_item, ett_addr);
332 if (tvb_get_uint8(tvb, offset) & 0x01) {
333 expert_add_info(pinfo, addr_item, &ei_btbnep_src_not_group_address);
334 }
335
336 proto_tree_add_item(addr_tree, hf_btbnep_addr, tvb, offset, FT_ETHER_LEN, ENC_NA);
337 proto_tree_add_item(addr_tree, hf_btbnep_lg, tvb, offset, 3, ENC_BIG_ENDIAN);
338 proto_tree_add_item(addr_tree, hf_btbnep_ig, tvb, offset, 3, ENC_BIG_ENDIAN);
339 offset += FT_ETHER_LEN;
340 }
341
342 if (bnep_type != BNEP_TYPE_CONTROL) {
343 len_type = tvb_get_ntohs(tvb, offset);
344 if (len_type <= IEEE_802_3_MAX_LEN) {
345 /*
346 * The BNEP Version 1.0 spec says, for BNEP_GENERAL_ETHERNET
347 * packets, "Note: Networking Protocol Types as used in this
348 * specification SHALL be taken to include values in the range
349 * 0x0000-0x05dc, used to represent the IEEE802.3 length
350 * interpretation of the IEEE802.3 length/type field.",
351 * although it says that it's not mandatory to process
352 * those packets.
353 */
354 length_ti = proto_tree_add_item(btbnep_tree, hf_btbnep_len, tvb, offset, 2, ENC_BIG_ENDIAN);
355 } else if (len_type < ETHERNET_II_MIN_LEN) {
356 /*
357 * Not a valid Ethernet length, not a valid Ethernet type.
358 */
359 proto_item *ti;
360
361 ti = proto_tree_add_item(btbnep_tree, hf_btbnep_invalid_lentype, tvb, offset, 2, ENC_BIG_ENDIAN);
362 expert_add_info_format(pinfo, ti, &ei_btbnep_invalid_lentype,
363 "Invalid length/type: 0x%04x (%u)",
364 len_type, len_type);
365 } else {
366 /*
367 * Ethernet type.
368 */
369 if (!top_dissect)
370 proto_tree_add_item(btbnep_tree, hf_btbnep_type, tvb, offset, 2, ENC_BIG_ENDIAN);
371 col_append_fstr(pinfo->cinfo, COL_INFO, " - Type: %s", val_to_str_const(len_type, etype_vals, "unknown"));
372 }
373 offset += 2;
374 } else {
375 offset = dissect_control(tvb, pinfo, btbnep_tree, offset);
376 }
377
378 if (extension_flag) {
379 offset = dissect_extension(tvb, pinfo, btbnep_tree, offset);
380 }
381
382 if (bnep_type != BNEP_TYPE_CONTROL) {
383 /* dissect normal network */
384 if (top_dissect) {
385 if (len_type <= IEEE_802_3_MAX_LEN) {
386 bool is_802_2;
387 int reported_length;
388 tvbuff_t *next_tvb;
389
390 /*
391 * The BNEP Version 1.0 spec says, for BNEP_GENERAL_ETHERNET
392 * packets, "Note: Networking Protocol Types as used in this
393 * specification SHALL be taken to include values in the range
394 * 0x0000-0x05dc, used to represent the IEEE802.3 length
395 * interpretation of the IEEE802.3 length/type field.",
396 * although it says that it's not mandatory to process
397 * those packets.
398 */
399
400 /*
401 * Is there an 802.2 layer? I can tell by looking at the
402 * first 2 bytes of the payload. If they are 0xffff, then
403 * the payload is IPX.
404 *
405 * (Probably won't happen, but we might as well do this
406 * anyway.)
407 */
408 is_802_2 = true;
409
410 /* Don't throw an exception for this check (even a BoundsError) */
411 if (tvb_bytes_exist(tvb, offset, 2)) {
412 if (tvb_get_ntohs(tvb, offset) == 0xffff) {
413 is_802_2 = false;
414 }
415 }
416
417 reported_length = tvb_reported_length_remaining(tvb, offset);
418
419 /*
420 * Make sure the length doesn't go past the end of the
421 * payload.
422 */
423 if (reported_length >= 0 && len_type > (unsigned)reported_length) {
424 len_type = reported_length;
425 expert_add_info(pinfo, length_ti, &ei_btbnep_len_past_end);
426 }
427
428 /* Give the next dissector only 'len_type' number of bytes. */
429 next_tvb = tvb_new_subset_length(tvb, offset, len_type);
430 if (is_802_2) {
431 call_dissector(llc_handle, next_tvb, pinfo, tree);
432 } else {
433 call_dissector(ipx_handle, next_tvb, pinfo, tree);
434 }
435 } else if (len_type < ETHERNET_II_MIN_LEN) {
436 /*
437 * Not a valid packet.
438 */
439 tvbuff_t *next_tvb;
440
441 next_tvb = tvb_new_subset_remaining(tvb, offset);
442 call_data_dissector(next_tvb, pinfo, tree);
443 } else {
444 /*
445 * Valid Ethertype.
446 */
447 ethertype_data_t ethertype_data;
448
449 proto_tree_add_uint(btbnep_tree, hf_btbnep_type, tvb,
450 offset - 2, 2, len_type);
451
452 ethertype_data.etype = len_type;
453 ethertype_data.payload_offset = offset;
454 ethertype_data.fh_tree = btbnep_tree;
455 ethertype_data.trailer_id = 0;
456 ethertype_data.fcs_len = 0;
457
458 call_dissector_with_data(ethertype_handle, tvb, pinfo, tree, &ethertype_data);
459 }
460 } else {
461 tvbuff_t *next_tvb;
462
463 next_tvb = tvb_new_subset_remaining(tvb, offset);
464 call_data_dissector(next_tvb, pinfo, tree);
465 }
466 }
467
468 return offset;
469 }
470
471 void
472 proto_register_btbnep(void)
473 {
474 module_t *module;
475 expert_module_t* expert_btbnep;
476
477 static hf_register_info hf[] = {
478 { &hf_btbnep_bnep_type,
479 { "BNEP Type", "btbnep.bnep_type",
480 FT_UINT8, BASE_HEX, VALS(bnep_type_vals), 0x7F,
481 NULL, HFILL }
482 },
483 { &hf_btbnep_extension_flag,
484 { "Extension Flag", "btbnep.extension_flag",
485 FT_BOOLEAN, 8, NULL, 0x80,
486 NULL, HFILL }
487 },
488 { &hf_btbnep_control_type,
489 { "Control Type", "btbnep.control_type",
490 FT_UINT8, BASE_HEX, VALS(control_type_vals), 0x00,
491 NULL, HFILL }
492 },
493 { &hf_btbnep_extension_type,
494 { "Extension Type", "btbnep.extension_type",
495 FT_UINT8, BASE_HEX, VALS(extension_type_vals), 0x00,
496 NULL, HFILL }
497 },
498 { &hf_btbnep_extension_length,
499 { "Extension Length", "btbnep.extension_length",
500 FT_UINT16, BASE_DEC, NULL, 0x00,
501 NULL, HFILL }
502 },
503 { &hf_btbnep_unknown_control_type,
504 { "Unknown Control Type", "btbnep.unknown_control_type",
505 FT_UINT8, BASE_HEX, VALS(control_type_vals), 0x00,
506 NULL, HFILL }
507 },
508 { &hf_btbnep_uuid_size,
509 { "UIDD Size", "btbnep.uuid_size",
510 FT_UINT8, BASE_DEC, NULL, 0x00,
511 NULL, HFILL }
512 },
513 { &hf_btbnep_destination_service_uuid,
514 { "Destination Service UUID", "btbnep.destination_service_uuid",
515 FT_NONE, BASE_NONE, NULL, 0x00,
516 NULL, HFILL }
517 },
518 { &hf_btbnep_source_service_uuid,
519 { "Source Service UUID", "btbnep.source_service_uuid",
520 FT_NONE, BASE_NONE, NULL, 0x00,
521 NULL, HFILL }
522 },
523 { &hf_btbnep_setup_connection_response_message,
524 { "Response Message", "btbnep.setup_connection_response_message",
525 FT_UINT16, BASE_HEX, VALS(setup_connection_response_message_vals), 0x00,
526 NULL, HFILL }
527 },
528 { &hf_btbnep_filter_net_type_response_message,
529 { "Response Message", "btbnep.filter_net_type_response_message",
530 FT_UINT16, BASE_HEX, VALS(filter_net_type_response_message_vals), 0x00,
531 NULL, HFILL }
532 },
533 { &hf_btbnep_filter_multi_addr_response_message,
534 { "Response Message", "btbnep.filter_multi_addr_response_message",
535 FT_UINT16, BASE_HEX, VALS(filter_multi_addr_response_message_vals), 0x00,
536 NULL, HFILL }
537 },
538 { &hf_btbnep_list_length,
539 { "List Length", "btbnep.list_length",
540 FT_UINT16, BASE_DEC, NULL, 0x00,
541 NULL, HFILL }
542 },
543 /* http://www.iana.org/assignments/ethernet-numbers */
544 { &hf_btbnep_network_type_start,
545 { "Network Protocol Type Range Start", "btbnep.network_type_start",
546 FT_UINT16, BASE_HEX, VALS(etype_vals), 0x00,
547 NULL, HFILL }
548 },
549 { &hf_btbnep_network_type_end,
550 { "Network Protocol Type Range End", "btbnep.network_type_end",
551 FT_UINT16, BASE_HEX, VALS(etype_vals), 0x00,
552 NULL, HFILL }
553 },
554 { &hf_btbnep_multicast_address_start,
555 { "Multicast Address Start", "btbnep.multicast_address_start",
556 FT_ETHER, BASE_NONE, NULL, 0x00,
557 NULL, HFILL }
558 },
559 { &hf_btbnep_multicast_address_end,
560 { "Multicast Address End", "btbnep.multicast_address_end",
561 FT_ETHER, BASE_NONE, NULL, 0x00,
562 NULL, HFILL }
563 },
564 { &hf_btbnep_dst,
565 { "Destination", "btbnep.dst",
566 FT_ETHER, BASE_NONE, NULL, 0x0,
567 "Destination Hardware Address", HFILL }
568 },
569 { &hf_btbnep_src,
570 { "Source", "btbnep.src",
571 FT_ETHER, BASE_NONE, NULL, 0x0,
572 "Source Hardware Address", HFILL }
573 },
574 { &hf_btbnep_len,
575 { "Length", "btbnep.len",
576 FT_UINT16, BASE_DEC, NULL, 0x0,
577 NULL, HFILL }
578 },
579 { &hf_btbnep_invalid_lentype,
580 { "Invalid length/type", "btbnep.invalid_lentype",
581 FT_UINT16, BASE_HEX_DEC, NULL, 0x0,
582 NULL, HFILL }
583 },
584 { &hf_btbnep_type,
585 { "Type", "btbnep.type",
586 FT_UINT16, BASE_HEX, VALS(etype_vals), 0x0,
587 NULL, HFILL }
588 },
589 { &hf_btbnep_addr,
590 { "Address", "btbnep.addr",
591 FT_ETHER, BASE_NONE, NULL, 0x0,
592 "Source or Destination Hardware Address", HFILL }
593 },
594 { &hf_btbnep_lg,
595 { "LG bit", "btbnep.lg",
596 FT_BOOLEAN, 24, TFS(&lg_tfs), 0x020000,
597 "Specifies if this is a locally administered or globally unique (IEEE assigned) address", HFILL }
598 },
599 { &hf_btbnep_ig,
600 { "IG bit", "btbnep.ig",
601 FT_BOOLEAN, 24, TFS(&ig_tfs), 0x010000,
602 "Specifies if this is an individual (unicast) or group (broadcast/multicast) address", HFILL }
603 }
604 };
605
606 static int *ett[] = {
607 &ett_btbnep,
608 &ett_addr
609 };
610
611 static ei_register_info ei[] = {
612 { &ei_btbnep_src_not_group_address, { "btbnep.src.not_group_address", PI_PROTOCOL, PI_WARN, "Source MAC must not be a group address: IEEE 802.3-2002, Section 3.2.3(b)", EXPFILL }},
613 { &ei_btbnep_invalid_lentype, { "btbnep.invalid_lentype.expert", PI_PROTOCOL, PI_WARN, "Invalid length/type", EXPFILL }},
614 { &ei_btbnep_len_past_end, { "btbnep.len.past_end", PI_MALFORMED, PI_ERROR, "Length field value goes past the end of the payload", EXPFILL }},
615 };
616
617 proto_btbnep = proto_register_protocol("Bluetooth BNEP Protocol", "BT BNEP", "btbnep");
618 btbnep_handle = register_dissector("btbnep", dissect_btbnep, proto_btbnep);
619
620 proto_register_field_array(proto_btbnep, hf, array_length(hf));
621 proto_register_subtree_array(ett, array_length(ett));
622 expert_btbnep = expert_register_protocol(proto_btbnep);
623 expert_register_field_array(expert_btbnep, ei, array_length(ei));
624
625 module = prefs_register_protocol_subtree("Bluetooth", proto_btbnep, NULL);
626 prefs_register_static_text_preference(module, "bnep.version",
627 "Bluetooth Protocol BNEP version: 1.0",
628 "Version of protocol supported by this dissector.");
629
630 prefs_register_bool_preference(module, "bnep.top_dissect",
631 "Dissecting the top protocols", "Dissecting the top protocols",
632 &top_dissect);
633 }
634
635 void
636 proto_reg_handoff_btbnep(void)
637 {
638 ipx_handle = find_dissector_add_dependency("ipx", proto_btbnep);
639 llc_handle = find_dissector_add_dependency("llc", proto_btbnep);
640 ethertype_handle = find_dissector_add_dependency("ethertype", proto_btbnep);
641
642 dissector_add_string("bluetooth.uuid", "1115", btbnep_handle);
643 dissector_add_string("bluetooth.uuid", "1116", btbnep_handle);
644 dissector_add_string("bluetooth.uuid", "1117", btbnep_handle);
645
646 dissector_add_uint("btl2cap.psm", BTL2CAP_PSM_BNEP, btbnep_handle);
647 dissector_add_for_decode_as("btl2cap.cid", btbnep_handle);
648 }
649
650 /*
651 * Editor modelines - https://www.wireshark.org/tools/modelines.html
652 *
653 * Local variables:
654 * c-basic-offset: 4
655 * tab-width: 8
656 * indent-tabs-mode: nil
657 * End:
658 *
659 * vi: set shiftwidth=4 tabstop=8 expandtab:
660 * :indentSize=4:tabSize=8:noTabs=true:
661 */
Metzes wireshark repo