Bug Summary

File:epan/dissectors/packet-tpncp.c
Warning:line 434, column 10
Read function called when stream is in EOF state. Function has no effect

Annotated Source Code

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clang -cc1 -cc1 -triple x86_64-pc-linux-gnu -analyze -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name packet-tpncp.c -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 2 -fhalf-no-semantic-interposition -fno-delete-null-pointer-checks -mframe-pointer=all -relaxed-aliasing -fmath-errno -ffp-contract=on -fno-rounding-math -ffloat16-excess-precision=fast -fbfloat16-excess-precision=fast -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb -fdebug-compilation-dir=/builds/wireshark/wireshark/build -fcoverage-compilation-dir=/builds/wireshark/wireshark/build -resource-dir /usr/lib/llvm-20/lib/clang/20 -isystem /usr/include/glib-2.0 -isystem /usr/lib/x86_64-linux-gnu/glib-2.0/include -isystem /builds/wireshark/wireshark/epan/dissectors -isystem /builds/wireshark/wireshark/build/epan/dissectors -isystem /usr/include/mit-krb5 -isystem /usr/include/libxml2 -isystem /builds/wireshark/wireshark/epan -D G_DISABLE_DEPRECATED -D G_DISABLE_SINGLE_INCLUDES -D WS_BUILD_DLL -D WS_DEBUG -D WS_DEBUG_UTF_8 -I /builds/wireshark/wireshark/build -I /builds/wireshark/wireshark -I /builds/wireshark/wireshark/include -D _GLIBCXX_ASSERTIONS -internal-isystem /usr/lib/llvm-20/lib/clang/20/include -internal-isystem /usr/local/include -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/14/../../../../x86_64-linux-gnu/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -fmacro-prefix-map=/builds/wireshark/wireshark/= -fmacro-prefix-map=/builds/wireshark/wireshark/build/= -fmacro-prefix-map=../= -Wno-format-truncation -Wno-format-nonliteral -Wno-pointer-sign -std=gnu11 -ferror-limit 19 -fvisibility=hidden -fwrapv -fwrapv-pointer -fstrict-flex-arrays=3 -stack-protector 2 -fstack-clash-protection -fcf-protection=full -fgnuc-version=4.2.1 -fskip-odr-check-in-gmf -fexceptions -fcolor-diagnostics -analyzer-output=html -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /builds/wireshark/wireshark/sbout/2025-09-09-100415-3933-1 -x c /builds/wireshark/wireshark/epan/dissectors/packet-tpncp.c
1/* packet-tpncp.c
2 * Routines for Audiocodes TrunkPack Network Control Protocol (TPNCP) dissection
3 *
4 * Copyright (c) 2007 by Valery Sigalov <[email protected]>
5 *
6 * Wireshark - Network traffic analyzer
7 * By Gerald Combs <[email protected]>
8 * Copyright 1998 Gerald Combs
9 *
10 * SPDX-License-Identifier: GPL-2.0-or-later
11 */
12
13/*---------------------------------------------------------------------------*/
14
15#define WS_LOG_DOMAIN"TPNCP" "TPNCP"
16#include "config.h"
17
18#include <epan/packet.h>
19#include <epan/exceptions.h>
20#include <epan/expert.h>
21#include <epan/prefs.h>
22#include <wsutil/filesystem.h>
23#include <wsutil/file_util.h>
24#include <wsutil/report_message.h>
25#include <wsutil/strtoi.h>
26#include <epan/wmem_scopes.h>
27#include "packet-acdr.h"
28#include "packet-tcp.h"
29
30/*---------------------------------------------------------------------------*/
31
32#define BASE_TPNCP_PORT2424 2424
33#define HA_PORT_TPNCP_TRUNKPACK2442 2442
34#define TCP_PORT_TPNCP_TRUNKPACK2424 BASE_TPNCP_PORT2424
35#define UDP_PORT_TPNCP_TRUNKPACK2424 BASE_TPNCP_PORT2424
36#define TCP_PORT_TPNCP_HOST2424 BASE_TPNCP_PORT2424
37#define UDP_PORT_TPNCP_HOST2424 BASE_TPNCP_PORT2424
38
39#define MAX_TPNCP_DB_ENTRY_LEN3000 3000
40
41/*---------------------------------------------------------------------------*/
42
43void proto_register_tpncp(void);
44void proto_reg_handoff_tpncp(void);
45
46enum SpecialFieldType {
47 TPNCP_NORMAL,
48 TPNCP_ADDRESS_FAMILY,
49 TPNCP_IP_ADDR,
50 TPNCP_OPEN_CHANNEL_START,
51 TPNCP_SECURITY_START,
52 TPNCP_SECURITY_OFFSET,
53 RTP_STATE_START,
54 RTP_STATE_OFFSET,
55 RTP_STATE_END,
56 TPNCP_CHANNEL_CONFIGURATION
57};
58
59/* The linked list for storing information about specific data fields. */
60typedef struct tpncp_data_field_info
61{
62 char *name;
63 int descr;
64 int ipv6_descr;
65 int array_dim;
66 enum SpecialFieldType special_type;
67 unsigned char size;
68 unsigned char sign;
69 int since;
70 struct tpncp_data_field_info *p_next;
71} tpncp_data_field_info;
72
73/*---------------------------------------------------------------------------
74 * Desegmentation of TPNCP over TCP */
75static bool_Bool tpncp_desegment = true1;
76
77/* Database for storing information about all TPNCP events. */
78static tpncp_data_field_info **tpncp_events_info_db;
79unsigned tpncp_events_info_len;
80
81/* Database for storing information about all TPNCP commands. */
82static tpncp_data_field_info **tpncp_commands_info_db;
83unsigned tpncp_commands_info_len;
84
85/* Global variables for bitfields representation. */
86/* TPNCP packet header fields. */
87static int proto_tpncp;
88static int hf_tpncp_version;
89static int hf_tpncp_length;
90static int hf_tpncp_seq_number;
91static int hf_tpncp_length_ext;
92static int hf_tpncp_reserved;
93static int hf_tpncp_command_id;
94static int hf_tpncp_event_id;
95static int hf_tpncp_cid;
96
97static expert_field ei_tpncp_unknown_data;
98
99/* TPNCP fields defining a subtree. */
100static int ett_tpncp;
101static int ett_tpncp_body;
102
103static bool_Bool global_tpncp_load_db;
104
105static dissector_handle_t tpncp_handle;
106static dissector_handle_t tpncp_tcp_handle;
107
108/* TODO: Runtime value_string_ext arrays should be used*/
109static value_string *tpncp_commands_id_vals;
110static value_string *tpncp_events_id_vals;
111static value_string **tpncp_enums_id_vals;
112static char **tpncp_enums_name_vals;
113
114static int hf_size;
115static int hf_allocated;
116static hf_register_info *hf;
117
118static bool_Bool db_initialized;
119
120/*---------------------------------------------------------------------------*/
121
122enum AddressFamily {
123 TPNCP_IPV4 = 2,
124 TPNCP_IPV6 = 10,
125 TPNCP_IPV6_PSOS = 28
126};
127
128static void
129dissect_tpncp_data(unsigned data_id, packet_info *pinfo, tvbuff_t *tvb, proto_tree *ltree,
130 int *offset, tpncp_data_field_info **data_fields_info, int ver, unsigned encoding)
131{
132 int g_str_len;
133 tpncp_data_field_info *field = NULL((void*)0);
134 int bitindex = encoding == ENC_LITTLE_ENDIAN0x80000000 ? 7 : 0;
135 enum AddressFamily address_family = TPNCP_IPV4;
136 int open_channel_start = -1, security_offset = 0, rtp_state_offset = 0;
137 int channel_b_offset = 0, rtp_tx_state_offset = 0, rtp_state_size = 0;
138 const int initial_offset = *offset;
139
140 for (field = data_fields_info[data_id]; field; field = field->p_next) {
141 if (field->since > 0 && field->since > ver)
142 continue;
143 switch (field->special_type) {
144 case TPNCP_OPEN_CHANNEL_START:
145 open_channel_start = *offset;
146 break;
147 case TPNCP_SECURITY_OFFSET: {
148 const uint32_t sec_offset = tvb_get_uint32(tvb, *offset, encoding);
149 if (sec_offset > 0 && open_channel_start >= 0)
150 security_offset = open_channel_start + sec_offset;
151 break;
152 }
153 case TPNCP_SECURITY_START:
154 *offset = security_offset;
155 open_channel_start = -1;
156 security_offset = 0;
157 break;
158 case RTP_STATE_OFFSET:
159 rtp_state_offset = tvb_get_int32(tvb, *offset, encoding);
160 if (rtp_state_offset > 0)
161 rtp_state_offset += initial_offset + 4; /* The offset starts after CID */
162 break;
163 case RTP_STATE_START:
164 *offset = rtp_state_offset;
165 rtp_state_offset = 0;
166 if (rtp_tx_state_offset == 0) {
167 rtp_state_size = (tvb_reported_length_remaining(tvb, *offset) - 4) / 2;
168 rtp_tx_state_offset = *offset + rtp_state_size;
169 } else {
170 *offset = rtp_tx_state_offset;
171 rtp_tx_state_offset += rtp_state_size;
172 }
173 break;
174 case RTP_STATE_END:
175 rtp_tx_state_offset = 0;
176 break;
177 case TPNCP_CHANNEL_CONFIGURATION:
178 if (channel_b_offset == 0) {
179 int channel_configuration_size = tvb_reported_length_remaining(tvb, *offset) / 2;
180 channel_b_offset = *offset + channel_configuration_size;
181 } else {
182 *offset = channel_b_offset;
183 channel_b_offset = 0;
184 }
185 break;
186 case TPNCP_ADDRESS_FAMILY:
187 address_family = (enum AddressFamily)tvb_get_uint32(tvb, *offset, encoding);
188 // fall-through
189 default:
190 if (open_channel_start != -1 && security_offset > 0 && *offset >= security_offset)
191 continue;
192 if (rtp_state_offset > 0 && *offset >= rtp_state_offset)
193 continue;
194 if (rtp_tx_state_offset > 0 && *offset >= rtp_tx_state_offset)
195 continue;
196 if (channel_b_offset > 0 && *offset >= channel_b_offset)
197 continue;
198 break;
199 }
200 switch (field->size) {
201 case 1: case 2: case 3: case 4:
202 case 5: case 6: case 7: case 8:
203 /* add char array */
204 if ((g_str_len = field->array_dim)) {
205 g_str_len = MIN(g_str_len, tvb_reported_length_remaining(tvb, *offset))(((g_str_len) < (tvb_reported_length_remaining(tvb, *offset
))) ? (g_str_len) : (tvb_reported_length_remaining(tvb, *offset
)));
206 proto_tree_add_item(ltree, field->descr, tvb, *offset, g_str_len, ENC_NA0x00000000 | ENC_ASCII0x00000000);
207 (*offset) += g_str_len;
208 } else { /* add single char */
209 /* Output only the numeric value for 8-bit fields, considering sign, with no extra formatting. */
210 if (field->size == 8) {
211 uint8_t g_uchar = tvb_get_uint8(tvb, *offset);
212 if (field->sign)
213 proto_tree_add_uint(ltree, field->descr, tvb, *offset, 1, g_uchar);
214 else
215 proto_tree_add_int(ltree, field->descr, tvb, *offset, 1, (int8_t)g_uchar);
216 (*offset)++;
217 } else { /* unsigned bitfield <8 */
218 unsigned bit_offset;
219
220 /*
221 * tpncp.dat always lists bitfields in little-endian (LSB-first) order, regardless of encoding.
222 * Wireshark's proto_tree_add_bits_item with ENC_LITTLE_ENDIAN matches this order.
223 *
224 * Therefore, we always use ENC_LITTLE_ENDIAN for bitfield extraction, regardless of the packet encoding.
225 *
226 * bit_offset is simply (*offset) * 8 + bitindex, and bitindex increments by field->size.
227 */
228 bit_offset = (*offset) * 8 + bitindex;
229 proto_tree_add_bits_item(ltree, field->descr, tvb, bit_offset, field->size, ENC_LITTLE_ENDIAN0x80000000);
230
231 bitindex += field->size;
232 (*offset) += bitindex / 8;
233 bitindex %= 8;
234 }
235 }
236 break;
237 case 16:
238 proto_tree_add_item(ltree, field->descr, tvb, *offset, 2, encoding);
239 (*offset) += 2;
240 break;
241 case 32:
242 proto_tree_add_item(ltree, field->descr, tvb, *offset, 4, encoding);
243 (*offset) += 4;
244 break;
245 case 64:
246 proto_tree_add_item(ltree, field->descr, tvb, *offset, 8, encoding);
247 (*offset) += 8;
248 break;
249 case 128:
250 if (field->special_type == TPNCP_IP_ADDR) {
251 if (address_family == TPNCP_IPV6 || address_family == TPNCP_IPV6_PSOS)
252 proto_tree_add_item(ltree, field->ipv6_descr, tvb, *offset, 16, encoding);
253 else
254 proto_tree_add_item(ltree, field->descr, tvb, *offset, 4, encoding);
255 address_family = TPNCP_IPV4;
256 }
257 (*offset) += 16;
258 break;
259 default:
260 break;
261 }
262 if (tvb_reported_length_remaining(tvb, *offset) <= 0)
263 break;
264 }
265 if ((g_str_len = tvb_reported_length_remaining(tvb, *offset)) > 0) {
266 expert_add_info_format(pinfo, ltree, &ei_tpncp_unknown_data, "TPNCP Unknown Data");
267 (*offset) += g_str_len;
268 }
269}
270
271/*---------------------------------------------------------------------------*/
272static int
273dissect_tpncp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U___attribute__((unused)))
274{
275 proto_item *item = NULL((void*)0);
276 proto_tree *tpncp_tree = NULL((void*)0), *event_tree, *command_tree;
277 int offset = 0, cid = -1;
278 unsigned id;
279 unsigned seq_number, len, ver;
280 unsigned len_ext, reserved, encoding;
281 uint32_t fullLength;
282
283 if (!db_initialized)
284 return 0;
285
286 encoding = tvb_get_ntohs(tvb, 8) == 0 ? ENC_BIG_ENDIAN0x00000000 : ENC_LITTLE_ENDIAN0x80000000;
287
288 col_set_str(pinfo->cinfo, COL_PROTOCOL, "TPNCP");
289
290 item = proto_tree_add_item(tree, proto_tpncp, tvb, 0, -1, ENC_NA0x00000000);
291 tpncp_tree = proto_item_add_subtree(item, ett_tpncp);
292
293 proto_tree_add_item_ret_uint(tpncp_tree, hf_tpncp_version, tvb, 0, 2, encoding, &ver);
294 proto_tree_add_item_ret_uint(tpncp_tree, hf_tpncp_length, tvb, 2, 2, encoding, &len);
295 proto_tree_add_item_ret_uint(tpncp_tree, hf_tpncp_seq_number, tvb, 4, 2, encoding, &seq_number);
296 proto_tree_add_item_ret_uint(tpncp_tree, hf_tpncp_length_ext, tvb, 6, 1, encoding, &len_ext);
297 proto_tree_add_item_ret_uint(tpncp_tree, hf_tpncp_reserved, tvb, 7, 1, encoding, &reserved);
298 fullLength = 0xffff * len_ext + len;
299
300 id = tvb_get_uint32(tvb, 8, encoding);
301 if (len > 8)
302 cid = tvb_get_int32(tvb, 12, encoding);
303 if (pinfo->srcport == UDP_PORT_TPNCP_TRUNKPACK2424 ||
304 pinfo->srcport == HA_PORT_TPNCP_TRUNKPACK2442) {
305 if (try_val_to_str(id, tpncp_events_id_vals)) {
306 proto_tree_add_uint(tpncp_tree, hf_tpncp_event_id, tvb, 8, 4, id);
307 if (len > 8)
308 proto_tree_add_int(tpncp_tree, hf_tpncp_cid, tvb, 12, 4, cid);
309 offset += 16;
310 if (id < tpncp_events_info_len && tpncp_events_info_db[id] != NULL((void*)0) && len > 12) {
311 event_tree = proto_tree_add_subtree_format(
312 tree, tvb, offset, -1, ett_tpncp_body, NULL((void*)0),
313 "TPNCP Event: %s (%d)",
314 val_to_str_const(id, tpncp_events_id_vals, "Unknown"), id);
315 dissect_tpncp_data(id, pinfo, tvb, event_tree, &offset, tpncp_events_info_db,
316 ver, encoding);
317 }
318 }
319 col_add_fstr(pinfo->cinfo, COL_INFO,
320 "EvID=%s(%d), SeqNo=%d, CID=%d, Len=%d, Ver=%d",
321 val_to_str_const(id, tpncp_events_id_vals, "Unknown"),
322 id, seq_number, cid, fullLength, ver);
323 } else {
324 if (try_val_to_str(id, tpncp_commands_id_vals)) {
325 proto_tree_add_uint(tpncp_tree, hf_tpncp_command_id, tvb, 8, 4, id);
326 offset += 12;
327 if (id < tpncp_commands_info_len && tpncp_commands_info_db[id] != NULL((void*)0) && len > 8) {
328 command_tree = proto_tree_add_subtree_format(
329 tree, tvb, offset, -1, ett_tpncp_body, NULL((void*)0),
330 "TPNCP Command: %s (%d)",
331 val_to_str_const(id, tpncp_commands_id_vals, "Unknown"), id);
332 dissect_tpncp_data(id, pinfo, tvb, command_tree, &offset, tpncp_commands_info_db,
333 ver, encoding);
334 }
335 }
336 col_add_fstr(pinfo->cinfo, COL_INFO,
337 "CmdID=%s(%d), SeqNo=%d, CID=%d, Len=%d, Ver=%d",
338 val_to_str_const(id, tpncp_commands_id_vals, "Unknown"),
339 id, seq_number, cid, fullLength, ver);
340 }
341
342 return tvb_reported_length(tvb);
343}
344
345/*---------------------------------------------------------------------------*/
346
347static unsigned
348get_tpncp_pdu_len(packet_info *pinfo _U___attribute__((unused)), tvbuff_t *tvb, int offset, void *data _U___attribute__((unused)))
349{
350 uint32_t plen;
351
352 /* Get the length of the TPNCP packet. */
353 plen = tvb_get_ntohs(tvb, offset + 2) + 0xffff * tvb_get_uint8(tvb, offset + 6);
354
355 /* Length does not include the version+length field. */
356 plen += 4;
357
358 return plen;
359}
360
361/*---------------------------------------------------------------------------*/
362
363static int
364dissect_tpncp_tcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
365{
366 if (!db_initialized)
367 return 0;
368
369 if (pinfo->can_desegment)
370 /* If desegmentation is enabled (TCP preferences) use the desegmentation API. */
371 tcp_dissect_pdus(tvb, pinfo, tree, tpncp_desegment, 4, get_tpncp_pdu_len,
372 dissect_tpncp, data);
373 else
374 /* Otherwise use the regular dissector (might not give correct dissection). */
375 dissect_tpncp(tvb, pinfo, tree, data);
376
377 return tvb_reported_length(tvb);
378}
379
380static int
381dissect_acdr_event(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
382{
383 int res = 0;
384 acdr_dissector_data_t *acdr_data = (acdr_dissector_data_t *) data;
385 uint32_t orig_port = pinfo->srcport;
386
387 if (acdr_data == NULL((void*)0))
388 return 0;
389
390 // only on version 2+ events are sent with TPNCP header that enables using tpncp parser
391 if (acdr_data->version <= 1)
392 return 0;
393
394 // the TPNCP dissector uses the following statement to
395 // differentiate command from event:
396 // if (pinfo->srcport == UDP_PORT_TPNCP_TRUNKPACK) -> Event
397 // so for proper dissection we want to imitate this behaviour
398 pinfo->srcport = UDP_PORT_TPNCP_TRUNKPACK2424;
399 res = dissect_tpncp(tvb, pinfo, tree, NULL((void*)0));
400 pinfo->srcport = orig_port;
401 return res;
402}
403
404static int
405dissect_acdr_tpncp_by_tracepoint(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
406{
407 acdr_dissector_data_t *acdr_data = (acdr_dissector_data_t *) data;
408 uint32_t orig_port = pinfo->srcport;
409 int res = 0;
410
411 if (acdr_data == NULL((void*)0))
412 return 0;
413
414 // the TPNCP dissector uses the following statement to
415 // differentiate command from event:
416 // if (pinfo->srcport == UDP_PORT_TPNCP_TRUNKPACK) -> Event
417 // so for proper dissection we want to imitate this behaviour
418
419 if (acdr_data->trace_point == Host2Net) // event
420 pinfo->srcport = UDP_PORT_TPNCP_TRUNKPACK2424;
421 else // Net2Host ->command
422 pinfo->srcport = UDP_PORT_TPNCP_TRUNKPACK2424 + 1;
423
424 res = dissect_tpncp(tvb, pinfo, tree, NULL((void*)0));
425 pinfo->srcport = orig_port;
426 return res;
427}
428
429/*---------------------------------------------------------------------------*/
430
431static bool_Bool
432fgetline(char *buffer, int size, FILE *file)
433{
434 if (!fgets(buffer, size, file))
11
←
Assuming stream reaches end-of-file here
→
12
←
Taking true branch
→
18
←
Read function called when stream is in EOF state. Function has no effect
435 return 0;
436 size_t last = strlen(buffer);
437 if (buffer[last - 1] == '\n')
438 buffer[last - 1] = 0;
439 return 1;
440}
441
442static int
443fill_tpncp_id_vals(value_string **strings, FILE *file)
444{
445 wmem_array_t *vs_arr;
446 char *line_in_file;
447
448 if (file
8.1
'file' is not equal to NULL
15.1
'file' is not equal to NULL
 == NULL((void*)0)) return -1;
9
←
Taking false branch
→
16
←
Taking false branch
→
449
450 line_in_file = (char *) g_malloc(MAX_TPNCP_DB_ENTRY_LEN3000);
451 vs_arr = wmem_array_new(NULL((void*)0), sizeof **strings);
452
453 while (fgetline(line_in_file, MAX_TPNCP_DB_ENTRY_LEN3000, file) && !feof(file)) {
10
←
Calling 'fgetline'
→
13
←
Returning from 'fgetline'
→
17
←
Calling 'fgetline'
→
454 int tpncp_id = 0;
455 char tpncp_name[256];
456
457 if (!strncmp(line_in_file, "#####", 5))
458 break;
459 if (sscanf(line_in_file, "%255s %d", tpncp_name, &tpncp_id) == 2) {
460 value_string const string = {
461 .value = (uint32_t)tpncp_id,
462 .strptr = wmem_strdup(wmem_epan_scope(), tpncp_name)
463 };
464 wmem_array_append_one(vs_arr, string)wmem_array_append((vs_arr), &(string), 1);
465 }
466 }
467
468 wmem_array_set_null_terminator(vs_arr);
469 *strings = wmem_array_finalize(vs_arr);
470 g_free(line_in_file);
471
472 return 0;
473}
474
475/*---------------------------------------------------------------------------*/
476
477static int
478fill_enums_id_vals(char ***enum_names, value_string ***enum_value_strings, FILE *file)
479{
480 wmem_array_t *enum_name_arr, *enum_vs_arr, *enum_vs = NULL((void*)0);
481 char *line_in_file;
482 char enum_type[256];
483
484 line_in_file = (char *) g_malloc(MAX_TPNCP_DB_ENTRY_LEN3000);
485 enum_type[0] = '\0';
486
487 enum_name_arr = wmem_array_new(NULL((void*)0), sizeof **enum_names);
488 enum_vs_arr = wmem_array_new(NULL((void*)0), sizeof **enum_value_strings);
489
490 while (fgetline(line_in_file, MAX_TPNCP_DB_ENTRY_LEN3000, file)) {
491 char enum_name[256], enum_str[256];
492 int enum_id;
493
494 if (!strncmp(line_in_file, "#####", 5))
495 break;
496 if (sscanf(line_in_file, "%255s %255s %d", enum_name, enum_str, &enum_id) == 3) {
497 if (strcmp(enum_type, enum_name) != 0) {
498 /* New record. */
499 if (enum_vs != NULL((void*)0)) {
500 /* The previous enum_vs is now complete. */
501 wmem_array_set_null_terminator(enum_vs);
502 value_string *new_enum_vs = wmem_array_finalize(enum_vs);
503 wmem_array_append_one(enum_vs_arr, new_enum_vs)wmem_array_append((enum_vs_arr), &(new_enum_vs), 1);
504 }
505 enum_vs = wmem_array_sized_new(NULL((void*)0), sizeof ***enum_value_strings, 10);
506
507 char *enum_name_alloc = wmem_strdup(wmem_epan_scope(), enum_name);
508 wmem_array_append_one(enum_name_arr, enum_name_alloc)wmem_array_append((enum_name_arr), &(enum_name_alloc), 1);
509 g_strlcpy(enum_type, enum_name, sizeof enum_type);
510 }
511 value_string const vs = {
512 .value = enum_id,
513 .strptr = wmem_strdup(wmem_epan_scope(), enum_str)
514 };
515 wmem_array_append_one(enum_vs, vs)wmem_array_append((enum_vs), &(vs), 1);
516 }
517 }
518
519 if (enum_vs != NULL((void*)0)) {
520 /* The final enum_vs is now complete. */
521 wmem_array_set_null_terminator(enum_vs);
522 value_string *new_enum_vs = wmem_array_finalize(enum_vs);
523 wmem_array_append_one(enum_vs_arr, new_enum_vs)wmem_array_append((enum_vs_arr), &(new_enum_vs), 1);
524 }
525
526 wmem_array_set_null_terminator(enum_name_arr);
527 *enum_names = (char **)wmem_array_finalize(enum_name_arr);
528
529 wmem_array_set_null_terminator(enum_vs_arr);
530 *enum_value_strings = (value_string **)wmem_array_finalize(enum_vs_arr);
531 g_free(line_in_file);
532
533 return 0;
534}
535
536/*---------------------------------------------------------------------------*/
537
538static int
539get_enum_name_val(const char *enum_name)
540{
541 int enum_val = 0;
542
543 while (tpncp_enums_name_vals[enum_val]) {
544 if (!strcmp(enum_name, tpncp_enums_name_vals[enum_val]))
545 return enum_val;
546 enum_val++;
547 }
548
549 return -1;
550}
551
552/*---------------------------------------------------------------------------*/
553
554static bool_Bool add_hf(hf_register_info *hf_entr)
555{
556 if (hf_size >= hf_allocated) {
557 void *newbuf;
558 hf_allocated += 1024;
559 newbuf = wmem_realloc(wmem_epan_scope(), hf, hf_allocated * sizeof (hf_register_info));
560 if (!newbuf)
561 return false0;
562 hf = (hf_register_info *) newbuf;
563 }
564 memcpy(hf + hf_size, hf_entr, sizeof (hf_register_info));
565 hf_size++;
566 return true1;
567}
568
569static int
570init_tpncp_data_fields_info(tpncp_data_field_info ***data_fields_info, unsigned *data_fields_len, FILE *file)
571{
572 static bool_Bool was_registered = false0;
573 char tpncp_db_entry[MAX_TPNCP_DB_ENTRY_LEN3000];
574 char entry_copy[MAX_TPNCP_DB_ENTRY_LEN3000];
575 const char *name = NULL((void*)0), *tmp = NULL((void*)0);
576 int enum_val, data_id, current_data_id = -1, array_dim;
577 unsigned char size;
578 enum SpecialFieldType special_type;
579 bool_Bool sign, is_address_family;
580 unsigned idx, since, ip_addr_field;
581 tpncp_data_field_info *field = NULL((void*)0);
582 hf_register_info hf_entr;
583 wmem_array_t *data_fields_info_arr;
584
585 hf_register_info hf_tpncp[] = {
586 {
587 &hf_tpncp_version,
588 {
589 "Version",
590 "tpncp.version",
591 FT_UINT16,
592 BASE_DEC,
593 NULL((void*)0),
594 0x0,
595 NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0)
596 }
597 },
598 {
599 &hf_tpncp_length,
600 {
601 "Length",
602 "tpncp.length",
603 FT_UINT16,
604 BASE_DEC,
605 NULL((void*)0),
606 0x0,
607 NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0)
608 }
609 },
610 {
611 &hf_tpncp_seq_number,
612 {
613 "Sequence number",
614 "tpncp.seq_number",
615 FT_UINT16,
616 BASE_DEC,
617 NULL((void*)0),
618 0x0,
619 NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0)
620 }
621 },
622 {
623 &hf_tpncp_length_ext,
624 {
625 "Length Extension",
626 "tpncp.lengthextension",
627 FT_UINT8,
628 BASE_DEC,
629 NULL((void*)0),
630 0x0,
631 NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0)
632 }
633 },
634 {
635 &hf_tpncp_reserved,
636 {
637 "Reserved",
638 "tpncp.reserved",
639 FT_UINT8,
640 BASE_DEC,
641 NULL((void*)0),
642 0x0,
643 NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0)
644 }
645 },
646 {
647 &hf_tpncp_command_id,
648 {
649 "Command ID",
650 "tpncp.command_id",
651 FT_UINT32,
652 BASE_DEC,
653 VALS(tpncp_commands_id_vals)((0 ? (const struct _value_string*)0 : ((tpncp_commands_id_vals
)))),
654 0x0,
655 NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0)
656 }
657 },
658 {
659 &hf_tpncp_event_id,
660 {
661 "Event ID",
662 "tpncp.event_id",
663 FT_UINT32,
664 BASE_DEC,
665 VALS(tpncp_events_id_vals)((0 ? (const struct _value_string*)0 : ((tpncp_events_id_vals
)))),
666 0x0,
667 NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0)
668 }
669 },
670 {
671 &hf_tpncp_cid,
672 {
673 "Channel ID",
674 "tpncp.channel_id",
675 FT_INT32,
676 BASE_DEC,
677 NULL((void*)0),
678 0x0,
679 NULL((void*)0), HFILL-1, 0, HF_REF_TYPE_NONE, -1, ((void*)0)
680 }
681 }
682 };
683
684 /* Register common fields of hf_register_info structure. */
685 hf_entr.hfinfo.type = FT_NONE;
686 hf_entr.hfinfo.strings = NULL((void*)0);
687 hf_entr.hfinfo.bitmask = 0x0;
688 hf_entr.hfinfo.blurb = NULL((void*)0);
689 HFILL_INIT(hf_entr)(hf_entr).hfinfo.id = -1; (hf_entr).hfinfo.parent = 0; (hf_entr
).hfinfo.ref_type = HF_REF_TYPE_NONE; (hf_entr).hfinfo.same_name_prev_id
= -1; (hf_entr).hfinfo.same_name_next = ((void*)0);;
690
691 if (!was_registered) {
692 void *newbuf;
693
694 /* Register non-standard data should be done only once. */
695 hf_allocated = hf_size + (int) array_length(hf_tpncp)(sizeof (hf_tpncp) / sizeof (hf_tpncp)[0]);
696 newbuf = wmem_realloc(wmem_epan_scope(), hf, hf_allocated * sizeof (hf_register_info));
697 if (!newbuf)
698 return -1;
699 hf = (hf_register_info *) newbuf;
700 for (idx = 0; idx < array_length(hf_tpncp)(sizeof (hf_tpncp) / sizeof (hf_tpncp)[0]); idx++) {
701 memcpy(hf + hf_size, hf_tpncp + idx, sizeof (hf_register_info));
702 hf_size++;
703 }
704 was_registered = true1;
705 }
706
707 is_address_family = false0;
708 ip_addr_field = 0;
709
710 data_fields_info_arr = wmem_array_new(NULL((void*)0), sizeof **data_fields_info);
711
712 /* Register standard data. */
713 while (fgetline(tpncp_db_entry, MAX_TPNCP_DB_ENTRY_LEN3000, file)) {
714 special_type = TPNCP_NORMAL;
715 since = 0;
716 snprintf(entry_copy, MAX_TPNCP_DB_ENTRY_LEN3000, "%s", tpncp_db_entry);
717 if (!strncmp(tpncp_db_entry, "#####", 5))
718 break;
719
720 /* Default to decimal display type */
721 hf_entr.hfinfo.display = BASE_DEC;
722 if ((tmp = strtok(tpncp_db_entry, " ")) == NULL((void*)0)) {
723 report_failure(
724 "ERROR! Badly formed data base entry: %s - corresponding field's registration is skipped.",
725 entry_copy);
726 continue;
727 }
728 data_id = (int) g_ascii_strtoll(tmp, NULL((void*)0), 10);
729 if ((name = strtok(NULL((void*)0), " ")) == NULL((void*)0)) {
730 report_failure(
731 "ERROR! Badly formed data base entry: %s - corresponding field's registration is skipped.",
732 entry_copy);
733 continue;
734 }
735
736 /* We happen to have a line without a name (57 0 32 0 0 primitive). Consider unnamed. */
737 if (g_ascii_isdigit(*name)((g_ascii_table[(guchar) (*name)] & G_ASCII_DIGIT) != 0)) {
738 tmp = name;
739 name = "unnamed";
740 } else {
741 if ((tmp = strtok(NULL((void*)0), " ")) == NULL((void*)0)) {
742 report_failure(
743 "ERROR! Badly formed data base entry: %s - corresponding field's registration is skipped.",
744 entry_copy);
745 continue;
746 }
747 }
748 if (name[0] == 'c' && !strcmp(name, "cmd_rev_lsb"))
749 special_type = TPNCP_OPEN_CHANNEL_START;
750 else if (name[0] == 'r' && !strcmp(name, "rtp_authentication_algorithm"))
751 special_type = TPNCP_SECURITY_START;
752 else if (name[0] == 's' && !strcmp(name, "security_cmd_offset"))
753 special_type = TPNCP_SECURITY_OFFSET;
754 else if (data_id != 1611 && name[0] == 's' && !strcmp(name, "ssrc"))
755 special_type = RTP_STATE_START;
756 else if (name[0] == 'r' && !strcmp(name, "rtp_tx_state_ssrc"))
757 special_type = RTP_STATE_START;
758 else if (name[0] == 'r' && !strcmp(name, "rtp_state_offset"))
759 special_type = RTP_STATE_OFFSET;
760 else if (name[0] == 's' && !strcmp(name, "state_update_time_stamp"))
761 special_type = RTP_STATE_END;
762 else if (data_id == 1611 && name[0] == 'c' && strstr(name, "configuration_type_updated"))
763 special_type = TPNCP_CHANNEL_CONFIGURATION;
764 else if ((data_id == 4 && strstr(name, "secondary_rtp_seq_num")) ||
765 (data_id == 1611 && strstr(name, "dtls_remote_fingerprint_alg"))) {
766 since = 7401;
767 }
768 sign = !!((bool_Bool) g_ascii_strtoll(tmp, NULL((void*)0), 10));
769 if ((tmp = strtok(NULL((void*)0), " ")) == NULL((void*)0)) {
770 report_failure(
771 "ERROR! Badly formed data base entry: %s - corresponding field's registration is skipped.",
772 entry_copy);
773 continue;
774 }
775 size = (unsigned char) g_ascii_strtoll(tmp, NULL((void*)0), 10);
776 if ((tmp = strtok(NULL((void*)0), " ")) == NULL((void*)0)) {
777 report_failure(
778 "ERROR! Badly formed data base entry: %s - corresponding field's registration is skipped.",
779 entry_copy);
780 continue;
781 }
782 array_dim = (int) g_ascii_strtoll(tmp, NULL((void*)0), 10);
783 if ((tmp = strtok(NULL((void*)0), " ")) == NULL((void*)0)) {
784 report_failure(
785 "ERROR! Badly formed data base entry: %s - corresponding field's registration is skipped.",
786 entry_copy);
787 continue;
788 }
789 if (sign && g_ascii_strtoll(tmp, NULL((void*)0), 10))
790 special_type = TPNCP_IP_ADDR;
791 if ((tmp = strtok(NULL((void*)0), "\n")) == NULL((void*)0)) {
792 report_failure(
793 "ERROR! Badly formed data base entry: %s - corresponding field's registration is skipped.",
794 entry_copy);
795 continue;
796 }
797
798 if (ip_addr_field > 0) {
799 // ip address that comes after address family has 4 fields: ip_addr_0, ip_addr_1, 2 and 3
800 // On these cases, ignore 1, 2 and 3 and enlarge the field size of 0 to 128
801 char *seq = (char*)name + strlen(name) - 2;
802 --ip_addr_field;
803 if (seq > name && *seq == '_') {
804 if (seq[1] >= '1' && seq[1] <= '3')
805 continue;
806 // relates to the *previous* field
807 if (is_address_family) {
808 *seq = 0;
809 size = 128;
810 special_type = TPNCP_IP_ADDR;
811 } else {
812 report_warning("Bad address form. Field name: %s", name);
813 ip_addr_field = 0;
814 }
815 }
816 }
817
818 is_address_family = false0;
819 if (current_data_id != data_id) { /* new data */
820 tpncp_data_field_info **fp;
821
822 while (wmem_array_get_count(data_fields_info_arr) <= (unsigned)data_id) {
823 static const tpncp_data_field_info **empty = NULL((void*)0);
824 wmem_array_append_one(data_fields_info_arr, empty)wmem_array_append((data_fields_info_arr), &(empty), 1);
825 }
826 fp = (tpncp_data_field_info **)wmem_array_index(data_fields_info_arr, data_id);
827 if (*fp != NULL((void*)0)) {
828 report_failure(
829 "ERROR! The data_id %d already registered. Cannot register two identical events/command",
830 data_id);
831 continue;
832 }
833 field = wmem_new0(wmem_epan_scope(), tpncp_data_field_info)((tpncp_data_field_info*)wmem_alloc0((wmem_epan_scope()), sizeof
(tpncp_data_field_info)));
834 *fp = field;
835 current_data_id = data_id;
836 } else {
837 field->p_next = wmem_new(wmem_epan_scope(), tpncp_data_field_info)((tpncp_data_field_info*)wmem_alloc((wmem_epan_scope()), sizeof
(tpncp_data_field_info)));
838 if (!field->p_next)
839 return (-1);
840 field = field->p_next;
841 field->p_next = NULL((void*)0);
842 }
843
844 /* Register specific fields of hf_register_info structure. */
845 if (strcmp(tmp, "primitive")) {
846 enum_val = get_enum_name_val(tmp);
847 if (enum_val == -1) {
848 hf_entr.hfinfo.strings = NULL((void*)0);
849 } else {
850 if (special_type == TPNCP_IP_ADDR)
851 special_type = TPNCP_NORMAL;
852 hf_entr.hfinfo.strings = VALS(tpncp_enums_id_vals[enum_val])((0 ? (const struct _value_string*)0 : ((tpncp_enums_id_vals[
enum_val]))));
853 if (!strcmp(tmp, "AddressFamily")) {
854 is_address_family = true1;
855 ip_addr_field = 4;
856 }
857 }
858 } else {
859 hf_entr.hfinfo.strings = NULL((void*)0);
860 }
861 field->descr = -1;
862 field->ipv6_descr = -1;
863 hf_entr.p_id = &field->descr;
864 field->name = wmem_strdup_printf(wmem_epan_scope(), "tpncp.%s", name);
865 hf_entr.hfinfo.name = field->name;
866 hf_entr.hfinfo.abbrev = field->name;
867 switch (size) {
868 case 1:
869 hf_entr.hfinfo.type = FT_BOOLEAN;
870 break;
871 case 2: case 3: case 4:
872 case 5: case 6: case 7: case 8:
873 if (array_dim) {
874 hf_entr.hfinfo.type = FT_STRING;
875 hf_entr.hfinfo.display = BASE_NONE;
876 } else {
877 hf_entr.hfinfo.type = (sign) ? FT_UINT8 : FT_INT8;
878 }
879 break;
880 case 16:
881 hf_entr.hfinfo.type = (sign) ? FT_UINT16 : FT_INT16;
882 break;
883 case 32:
884 if (special_type == TPNCP_IP_ADDR) {
885 hf_entr.hfinfo.display = BASE_NONE;
886 hf_entr.hfinfo.type = FT_IPv4;
887 } else {
888 hf_entr.hfinfo.type = (sign) ? FT_UINT32 : FT_INT32;
889 }
890 break;
891 case 64:
892 hf_entr.hfinfo.type = (sign) ? FT_UINT64 : FT_INT64;
893 break;
894 case 128:
895 if (special_type == TPNCP_IP_ADDR) {
896 hf_entr.hfinfo.display = BASE_NONE;
897 hf_entr.hfinfo.type = FT_IPv4;
898 if (!add_hf(&hf_entr))
899 return -1;
900 hf_entr.p_id = &field->ipv6_descr;
901 hf_entr.hfinfo.type = FT_IPv6;
902 }
903 break;
904 default:
905 break;
906 }
907
908 /* Register initialized hf_register_info in global database. */
909 if (!add_hf(&hf_entr))
910 return -1;
911 field->sign = sign;
912 field->size = size;
913 field->array_dim = array_dim;
914 field->special_type = is_address_family ? TPNCP_ADDRESS_FAMILY : special_type;
915 field->since = since;
916 }
917
918 *data_fields_len = wmem_array_get_count(data_fields_info_arr);
919 *data_fields_info = (tpncp_data_field_info **)wmem_array_finalize(data_fields_info_arr);
920
921 return 0;
922}
923
924/*---------------------------------------------------------------------------*/
925
926static int
927init_tpncp_db(void)
928{
929 char tpncp_dat_file_path[MAX_TPNCP_DB_ENTRY_LEN3000];
930 FILE *file;
931
932 snprintf(tpncp_dat_file_path, MAX_TPNCP_DB_ENTRY_LEN3000,
933 "%s" G_DIR_SEPARATOR_S"/" "tpncp" G_DIR_SEPARATOR_S"/" "tpncp.dat", get_datafile_dir());
934
935 /* Open file with TPNCP data. */
936 if ((file = ws_fopenfopen(tpncp_dat_file_path, "r")) == NULL((void*)0))
7
←
Taking false branch
→
937 return (-1);
938 fill_tpncp_id_vals(&tpncp_events_id_vals, file);
8
←
Calling 'fill_tpncp_id_vals'
→
14
←
Returning from 'fill_tpncp_id_vals'
→
939 fill_tpncp_id_vals(&tpncp_commands_id_vals, file);
15
←
Calling 'fill_tpncp_id_vals'
→
940 fill_enums_id_vals(&tpncp_enums_name_vals, &tpncp_enums_id_vals, file);
941 init_tpncp_data_fields_info(&tpncp_events_info_db, &tpncp_events_info_len, file);
942 init_tpncp_data_fields_info(&tpncp_commands_info_db, &tpncp_commands_info_len, file);
943
944 fclose(file);
945 return 0;
946}
947
948/*---------------------------------------------------------------------------*/
949
950void
951proto_reg_handoff_tpncp(void)
952{
953 static bool_Bool initialized = false0;
954
955 if (proto_tpncp <= 0) return;
1
Assuming 'proto_tpncp' is > 0
→
2
←
Taking false branch
→
956
957 if (!initialized
2.1
'initialized' is false
) {
3
←
Taking true branch
→
958 dissector_add_uint_with_preference("udp.port", UDP_PORT_TPNCP_TRUNKPACK2424, tpncp_handle);
959 dissector_add_uint_with_preference("tcp.port", TCP_PORT_TPNCP_TRUNKPACK2424, tpncp_tcp_handle);
960 dissector_add_uint("acdr.media_type", ACDR_PCIIF_COMMAND, tpncp_handle);
961 dissector_add_uint("acdr.media_type", ACDR_COMMAND, tpncp_handle);
962 dissector_add_uint("acdr.media_type", ACDR_Event, create_dissector_handle(dissect_acdr_event, proto_tpncp));
963 dissector_add_uint("acdr.media_type", ACDR_TPNCP,
964 create_dissector_handle(dissect_acdr_tpncp_by_tracepoint, proto_tpncp));
965 dissector_add_uint("acdr.tls_application", TLS_APP_TPNCP, tpncp_handle);
966 initialized = true1;
967 }
968 /* If we weren't able to load the database (and thus the hf_ entries)
969 * do not attach to any ports (if we did then we'd get a "dissector bug"
970 * assertions every time a packet is handed to us and we tried to use the
971 * hf_ entry).
972 */
973 if (!global_tpncp_load_db)
4
←
Assuming 'global_tpncp_load_db' is true
→
974 return;
975
976 if (hf_allocated == 0 && init_tpncp_db() == -1) {
5
←
Assuming 'hf_allocated' is equal to 0
→
6
←
Calling 'init_tpncp_db'
→
977 report_failure("tpncp: Could not load tpncp.dat file, tpncp dissector will not work");
978 return;
979 }
980
981 if (db_initialized)
982 return;
983
984 /* Rather than duplicating large quantities of code from
985 * proto_register_field_array() and friends to sanitize the tpncp.dat file
986 * when we read it, just catch any exceptions we get while registering and
987 * take them as a hint that the file is corrupt. Then move on, so that at
988 * least the rest of the protocol dissectors will still work.
989 */
990 TRY{ except_t *volatile exc; volatile int except_state = 0; static
const except_id_t catch_spec[] = { { 1, 0 } }; { struct except_stacknode
except_sn; struct except_catch except_ch; except_setup_try(&
except_sn, &except_ch, catch_spec, 1); if (_setjmp (except_ch
.except_jmp)) *(&exc) = &except_ch.except_obj; else *
(&exc) = 0; if(except_state & 1) except_state |= 2; except_state
&= ~1; if (except_state == 0 && exc == 0) {
991 int idx;
992 /* The function proto_register_field_array does not work with dynamic
993 * arrays, so pass dynamic array elements one-by-one in the loop.
994 */
995 for (idx = 0; idx < hf_size; idx++)
996 proto_register_field_array(proto_tpncp, &hf[idx], 1);
997 }
998
999 CATCH_ALLif (except_state == 0 && exc != 0 && (except_state
|=1)) {
1000 report_failure("Corrupt tpncp.dat file, tpncp dissector will not work.");
1001 }
1002
1003 ENDTRYif(!(except_state&1) && exc != 0) except_rethrow(
exc); except_free(except_ch.except_obj.except_dyndata); except_pop
(); };};
1004 db_initialized = true1;
1005}
1006
1007/*---------------------------------------------------------------------------*/
1008
1009void
1010proto_register_tpncp(void)
1011{
1012 module_t *tpncp_module;
1013 expert_module_t* expert_tpncp;
1014 static int *ett[] = {
1015 &ett_tpncp,
1016 &ett_tpncp_body
1017 };
1018
1019 static ei_register_info ei[] = {
1020 { &ei_tpncp_unknown_data, { "tpncp.unknown_data", PI_UNDECODED0x05000000, PI_WARN0x00600000, "Unknown data", EXPFILL0, ((void*)0), 0, {0, {((void*)0), ((void*)0), FT_NONE, BASE_NONE
, ((void*)0), 0, ((void*)0), -1, 0, HF_REF_TYPE_NONE, -1, ((void
*)0)}} } },
1021 };
1022
1023 /* this dissector reads hf entries from a database
1024 * a boolean preference defines whether the database is loaded or not
1025 * we initialize the hf array in the handoff function when we have
1026 * access to the preference's value */
1027
1028 proto_tpncp = proto_register_protocol("TPNCP (TrunkPack Network Control Protocol)",
1029 "TPNCP", "tpncp");
1030
1031 tpncp_handle = register_dissector("tpncp", dissect_tpncp, proto_tpncp);
1032 tpncp_tcp_handle = register_dissector("tpncp.tcp", dissect_tpncp_tcp, proto_tpncp);
1033
1034 tpncp_module = prefs_register_protocol(proto_tpncp, proto_reg_handoff_tpncp);
1035
1036 proto_register_subtree_array(ett, array_length(ett)(sizeof (ett) / sizeof (ett)[0]));
1037
1038 expert_tpncp = expert_register_protocol(proto_tpncp);
1039 expert_register_field_array(expert_tpncp, ei, array_length(ei)(sizeof (ei) / sizeof (ei)[0]));
1040
1041 /* See https://gitlab.com/wireshark/wireshark/-/issues/9569 for some discussion on this as well */
1042 prefs_register_bool_preference(tpncp_module, "load_db",
1043 "Whether to load DB or not; if DB not loaded dissector is passive",
1044 "Whether to load the Database or not; not loading the DB"
1045 " disables the protocol; Wireshark has to be restarted for the"
1046 " setting to take effect.",
1047 &global_tpncp_load_db);
1048}
1049
1050/*
1051 * Editor modelines
1052 *
1053 * Local Variables:
1054 * c-basic-offset: 4
1055 * tab-width: 8
1056 * indent-tabs-mode: nil
1057 * End:
1058 *
1059 * ex: set shiftwidth=4 tabstop=8 expandtab:
1060 * :indentSize=4:tabSize=8:noTabs=true:
1061 */