Bug Summary

File:builds/wireshark/wireshark/ui/tap-sctp-analysis.c
Warning:line 903, column 17
Potential leak of memory pointed to by 'store'

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 tap-sctp-analysis.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-18/lib/clang/18 -isystem /usr/include/glib-2.0 -isystem /usr/lib/x86_64-linux-gnu/glib-2.0/include -D G_DISABLE_DEPRECATED -D G_DISABLE_SINGLE_INCLUDES -D WS_DEBUG -D WS_DEBUG_UTF_8 -I /builds/wireshark/wireshark/build -I /builds/wireshark/wireshark -I /builds/wireshark/wireshark/include -I /builds/wireshark/wireshark/ui -I /builds/wireshark/wireshark/build/ui -I /builds/wireshark/wireshark/wiretap -D _GLIBCXX_ASSERTIONS -internal-isystem /usr/lib/llvm-18/lib/clang/18/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 -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 -dwarf-debug-flags /usr/lib/llvm-18/bin/clang -### --analyze -x c -D G_DISABLE_DEPRECATED -D G_DISABLE_SINGLE_INCLUDES -D WS_DEBUG -D WS_DEBUG_UTF_8 -I /builds/wireshark/wireshark/build -I /builds/wireshark/wireshark -I /builds/wireshark/wireshark/include -I /builds/wireshark/wireshark/ui -I /builds/wireshark/wireshark/build/ui -I /builds/wireshark/wireshark/wiretap -isystem /usr/include/glib-2.0 -isystem /usr/lib/x86_64-linux-gnu/glib-2.0/include -fvisibility=hidden -fexcess-precision=fast -fstrict-flex-arrays=3 -fstack-clash-protection -fcf-protection=full -D _GLIBCXX_ASSERTIONS -fstack-protector-strong -fno-delete-null-pointer-checks -fno-strict-overflow -fno-strict-aliasing -fexceptions -Wno-format-truncation -Wno-format-nonliteral -fdiagnostics-color=always -Wno-pointer-sign -fmacro-prefix-map=/builds/wireshark/wireshark/= -fmacro-prefix-map=/builds/wireshark/wireshark/build/= -fmacro-prefix-map=../= -std=gnu11 -fPIC /builds/wireshark/wireshark/ui/tap-sctp-analysis.c -o /builds/wireshark/wireshark/sbout/2024-11-20-100252-3912-1 -Xclang -analyzer-output=html -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /builds/wireshark/wireshark/sbout/2024-11-20-100252-3912-1 -x c /builds/wireshark/wireshark/ui/tap-sctp-analysis.c

/builds/wireshark/wireshark/ui/tap-sctp-analysis.c

→
1/*
2 * Copyright 2004-2013, Irene Ruengeler <i.ruengeler [AT] fh-muenster.de>
3 *
4 * Wireshark - Network traffic analyzer
5 * By Gerald Combs <[email protected]>
6 * Copyright 1998 Gerald Combs
7 *
8 * SPDX-License-Identifier: GPL-2.0-or-later
9 */
10
11#include "config.h"
12
13#include <string.h>
14#include <math.h>
15
16#include <glib.h>
17
18#include "epan/packet_info.h"
19#include "epan/tap.h"
20#include "epan/value_string.h"
21
22#include "ui/tap-sctp-analysis.h"
23
24#include "ui/simple_dialog.h"
25
26#define FORWARD_STREAM0 0
27#define BACKWARD_STREAM1 1
28#define FORWARD_ADD_FORWARD_VTAG2 2
29#define BACKWARD_ADD_FORWARD_VTAG3 3
30#define BACKWARD_ADD_BACKWARD_VTAG4 4
31#define ADDRESS_FORWARD_STREAM5 5
32#define ADDRESS_BACKWARD_STREAM6 6
33#define ADDRESS_FORWARD_ADD_FORWARD_VTAG7 7
34#define ADDRESS_BACKWARD_ADD_FORWARD_VTAG8 8
35#define ADDRESS_BACKWARD_ADD_BACKWARD_VTAG9 9
36#define ASSOC_NOT_FOUND10 10
37
38static sctp_allassocs_info_t sctp_tapinfo_struct;
39
40static void
41free_first(void *data, void *user_data _U___attribute__((unused)))
42{
43 g_free(data);
44}
45
46static void
47tsn_free(void *data)
48{
49 tsn_t *tsn;
50
51 tsn = (tsn_t *) data;
52 if (tsn->tsns != NULL((void*)0))
53 {
54 g_list_free_full(tsn->tsns, g_free);
55 }
56 free_address(&tsn->src);
57 free_address(&tsn->dst);
58 g_free(tsn);
59}
60
61static void
62chunk_free(void *data)
63{
64 sctp_addr_chunk *chunk = (sctp_addr_chunk *) data;
65
66 free_address(&chunk->addr);
67 g_free(chunk);
68}
69
70static void
71store_free(void *data)
72{
73 address *addr = (address *) data;
74
75 free_address(addr);
76 g_free(addr);
77}
78
79static void
80reset(void *arg)
81{
82 sctp_allassocs_info_t *tapdata = (sctp_allassocs_info_t *)arg;
83 GList* list;
84 sctp_assoc_info_t * info;
85
86 list = g_list_first(tapdata->assoc_info_list);
87 while (list)
88 {
89 info = (sctp_assoc_info_t *) (list->data);
90
91 if (info->addr1 != NULL((void*)0))
92 {
93 g_list_free_full(info->addr1, store_free);
94 info->addr1 = NULL((void*)0);
95 }
96
97 if (info->addr2 != NULL((void*)0))
98 {
99 g_list_free_full(info->addr2, store_free);
100 info->addr2 = NULL((void*)0);
101 }
102
103 if (info->error_info_list != NULL((void*)0))
104 {
105 g_list_free_full(info->error_info_list, g_free);
106 info->error_info_list = NULL((void*)0);
107 }
108
109 if (info->frame_numbers != NULL((void*)0))
110 {
111 g_list_free(info->frame_numbers);
112 info->frame_numbers = NULL((void*)0);
113 }
114
115 if (info->tsn1 != NULL((void*)0))
116 {
117 g_list_free_full(info->tsn1, tsn_free);
118 info->tsn1 = NULL((void*)0);
119 }
120
121 if (info->tsn2 != NULL((void*)0))
122 {
123 g_list_free_full(info->tsn2, tsn_free);
124 info->tsn2 = NULL((void*)0);
125 }
126
127 if (info->sack1 != NULL((void*)0))
128 {
129 g_list_free_full(info->sack1, tsn_free);
130 info->sack1 = NULL((void*)0);
131 }
132
133 if (info->sack2 != NULL((void*)0))
134 {
135 g_list_free_full(info->sack2, tsn_free);
136 info->sack2 = NULL((void*)0);
137 }
138
139 if (info->sort_tsn1 != NULL((void*)0))
140 g_ptr_array_free(info->sort_tsn1, true1);
141
142 if (info->sort_tsn2 != NULL((void*)0))
143 g_ptr_array_free(info->sort_tsn2, true1);
144
145 if (info->sort_sack1 != NULL((void*)0))
146 g_ptr_array_free(info->sort_sack1, true1);
147
148 if (info->sort_sack2 != NULL((void*)0))
149 g_ptr_array_free(info->sort_sack2, true1);
150
151 if (info->min_max != NULL((void*)0))
152 {
153 g_slist_foreach(info->min_max, free_first, NULL((void*)0));
154 info->min_max = NULL((void*)0);
155 }
156
157 if (info->addr_chunk_count) {
158 g_list_free_full(info->addr_chunk_count, chunk_free);
159 }
160
161 g_free(info->dir1);
162 g_free(info->dir2);
163 free_address(&info->src);
164 free_address(&info->dst);
165
166 g_free(list->data);
167 list = g_list_next(list)((list) ? (((GList *)(list))->next) : ((void*)0));
168 }
169 g_list_free(tapdata->assoc_info_list);
170 tapdata->sum_tvbs = 0;
171 tapdata->assoc_info_list = NULL((void*)0);
172}
173
174
175static sctp_assoc_info_t *
176calc_checksum(const struct _sctp_info *check_data, sctp_assoc_info_t *data)
177{
178 bool_Bool ok = false0;
179
180 if (check_data->adler32_calculated)
181 {
182 data->n_adler32_calculated++;
183 if (check_data->adler32_correct)
184 data->n_adler32_correct++;
185 }
186 if (check_data->crc32c_calculated)
187 {
188 data->n_crc32c_calculated++;
189 if (check_data->crc32c_correct)
190 data->n_crc32c_correct++;
191 }
192 if (data->n_adler32_calculated > 0)
193 {
194 if ((float)(data->n_adler32_correct*1.0/data->n_adler32_calculated) > 0.5)
195 {
196 char str[] = "ADLER32";
197 (void) g_strlcpy(data->checksum_type, str, 8);
198 data->n_checksum_errors=(data->n_adler32_calculated-data->n_adler32_correct);
199 ok = true1;
200 }
201 }
202
203 if (data->n_crc32c_calculated>0)
204 {
205 if ((float)(data->n_crc32c_correct*1.0/data->n_crc32c_calculated) > 0.5)
206 {
207 char str[] = "CRC32C";
208 (void) g_strlcpy(data->checksum_type, str, 8);
209 data->n_checksum_errors=data->n_crc32c_calculated-data->n_crc32c_correct;
210 ok = true1;
211 }
212 }
213
214 if (!ok)
215 {
216 char str[] = "UNKNOWN";
217 (void) g_strlcpy(data->checksum_type, str, 8);
218 data->n_checksum_errors=0;
219 }
220
221 return(data);
222
223}
224
225
226static sctp_assoc_info_t *
227find_assoc(sctp_tmp_info_t *needle)
228{
229 sctp_allassocs_info_t *assoc_info;
230 sctp_assoc_info_t *info = NULL((void*)0);
231 GList* list;
232
233 assoc_info = &sctp_tapinfo_struct;
234 if ((list = g_list_last(assoc_info->assoc_info_list))!=NULL((void*)0))
235 {
236 while (list)
237 {
238 info = (sctp_assoc_info_t*)(list->data);
239 if (needle->assoc_id == info->assoc_id)
240 return info;
241
242 list = g_list_previous(list)((list) ? (((GList *)(list))->prev) : ((void*)0));
243 }
244 }
245 return NULL((void*)0);
246}
247
248static sctp_assoc_info_t *
249add_chunk_count(address *vadd, sctp_assoc_info_t *info, uint32_t direction, uint32_t type)
250{
251 GList *list;
252 sctp_addr_chunk *ch=NULL((void*)0);
253 int i;
254
255 list = g_list_first(info->addr_chunk_count);
256
257 while (list)
258 {
259 ch = (sctp_addr_chunk *)(list->data);
260 if (ch->direction == direction)
261 {
262 if (addresses_equal(vadd, &ch->addr))
263 {
264 if (IS_SCTP_CHUNK_TYPE(type)(((type) <= 16) || ((type) == 0x40) || ((type) == 0xC0) ||
((type) == 0xC1) || ((type) == 0x80) || ((type) == 0x81)))
265 ch->addr_count[type]++;
266 else
267 ch->addr_count[OTHER_CHUNKS_INDEX0xfe]++;
268 return info;
269 }
270 else
271 {
272 list = g_list_next(list)((list) ? (((GList *)(list))->next) : ((void*)0));
273 }
274 }
275 else
276 list = g_list_next(list)((list) ? (((GList *)(list))->next) : ((void*)0));
277 }
278 ch = g_new(sctp_addr_chunk, 1)((sctp_addr_chunk *) g_malloc_n ((1), sizeof (sctp_addr_chunk
)));
279 ch->direction = direction;
280 copy_address(&ch->addr, vadd);
281 for (i=0; i < NUM_CHUNKS0x100; i++)
282 ch->addr_count[i] = 0;
283
284 if (IS_SCTP_CHUNK_TYPE(type)(((type) <= 16) || ((type) == 0x40) || ((type) == 0xC0) ||
((type) == 0xC1) || ((type) == 0x80) || ((type) == 0x81)))
285 ch->addr_count[type]++;
286 else
287 ch->addr_count[OTHER_CHUNKS_INDEX0xfe]++;
288
289 info->addr_chunk_count = g_list_append(info->addr_chunk_count, ch);
290 return info;
291}
292
293static sctp_assoc_info_t *
294add_address(address *vadd, sctp_assoc_info_t *info, uint16_t direction)
295{
296 GList *list;
297 address *v=NULL((void*)0);
298
299 if (direction
55.1
'direction' is not equal to 1
55.1
'direction' is not equal to 1
 == 1)
56
←
Taking false branch
→
300 list = g_list_first(info->addr1);
301 else
302 list = g_list_first(info->addr2);
303
304 while (list)
57
←
Loop condition is false. Execution continues on line 315
→
305 {
306 v = (address *) (list->data);
307 if (addresses_equal(vadd, v)) {
308 free_address(vadd);
309 g_free(vadd);
310 return info;
311 }
312 list = g_list_next(list)((list) ? (((GList *)(list))->next) : ((void*)0));
313 }
314
315 if (direction
57.1
'direction' is not equal to 1
57.1
'direction' is not equal to 1
 == 1)
58
←
Taking false branch
→
316 info->addr1 = g_list_append(info->addr1, vadd);
317 else if (direction
58.1
'direction' is not equal to 2
58.1
'direction' is not equal to 2
==2)
59
←
Taking false branch
→
318 info->addr2 = g_list_append(info->addr2, vadd);
319
320 return info;
60
←
Returning without deallocating memory or storing the pointer for later deallocation
→
321}
322
323static tap_packet_status
324packet(void *tapdata _U___attribute__((unused)), packet_info *pinfo, epan_dissect_t *edt _U___attribute__((unused)), const void *data, tap_flags_t flags _U___attribute__((unused)))
325{
326 const struct _sctp_info *sctp_info = (const struct _sctp_info *)data;
327 uint32_t chunk_number = 0, tsnumber, framenumber;
328 sctp_tmp_info_t tmp_info;
329 sctp_assoc_info_t *info = NULL((void*)0);
330 sctp_error_info_t *error = NULL((void*)0);
331 uint16_t type, length = 0;
332 address *store = NULL((void*)0);
333 tsn_t *tsn = NULL((void*)0);
334 tsn_t *sack = NULL((void*)0);
335 uint8_t *t_s_n = NULL((void*)0);
336 bool_Bool sackchunk = false0;
337 bool_Bool datachunk = false0;
338 bool_Bool forwardchunk = false0;
339 struct tsn_sort *tsn_s;
340 int i;
341 uint8_t idx = 0;
342 bool_Bool tsn_used = false0;
343 bool_Bool sack_used = false0;
344
345 framenumber = pinfo->num;
346
347 type = sctp_info->ip_src.type;
348
349 if (type == AT_IPv4 || type == AT_IPv6)
1
Assuming 'type' is not equal to AT_IPv4
→
2
←
Assuming 'type' is not equal to AT_IPv6
→
3
←
Taking false branch
→
350 copy_address(&tmp_info.src, &sctp_info->ip_src);
351 else
352 set_address(&tmp_info.src, AT_NONE, 0, NULL((void*)0));
353
354 type = sctp_info->ip_dst.type;
355
356 if (type == AT_IPv4 || type == AT_IPv6)
4
←
Assuming 'type' is not equal to AT_IPv4
→
5
←
Assuming 'type' is not equal to AT_IPv6
→
6
←
Taking false branch
→
357 copy_address(&tmp_info.dst, &sctp_info->ip_dst);
358 else
359 set_address(&tmp_info.dst, AT_NONE, 0, NULL((void*)0));
360
361 tmp_info.port1 = sctp_info->sport;
362 tmp_info.port2 = sctp_info->dport;
363
364 if (sctp_info->vtag_reflected)
7
←
Assuming field 'vtag_reflected' is false
→
8
←
Taking false branch
→
365 {
366 tmp_info.verification_tag2 = sctp_info->verification_tag;
367 tmp_info.verification_tag1 = 0;
368 }
369 else
370 {
371 tmp_info.verification_tag1 = sctp_info->verification_tag;
372 tmp_info.verification_tag2 = 0;
373 }
374 tmp_info.n_tvbs = 0;
375 if (tvb_get_uint8(sctp_info->tvb[0],0) == SCTP_INIT_CHUNK_ID1)
9
←
Assuming the condition is false
→
10
←
Taking false branch
→
376 {
377 tmp_info.initiate_tag = tvb_get_ntohl(sctp_info->tvb[0], 4);
378 }
379 else
380 {
381 tmp_info.initiate_tag = 0;
382 }
383
384 tmp_info.direction = sctp_info->direction;
385 tmp_info.assoc_id = sctp_info->assoc_index;
386 info = find_assoc(&tmp_info);
387 if (!info)
11
←
Assuming 'info' is non-null
→
12
←
Taking false branch
→
388 {
389 tmp_info.n_tvbs = sctp_info->number_of_tvbs;
390 sctp_tapinfo_struct.sum_tvbs+=sctp_info->number_of_tvbs;
391
392 if (sctp_info->number_of_tvbs > 0)
393 {
394 info = g_new0(sctp_assoc_info_t, 1)((sctp_assoc_info_t *) g_malloc0_n ((1), sizeof (sctp_assoc_info_t
)));
395 info->assoc_id = sctp_info->assoc_index;
396 copy_address(&info->src, &tmp_info.src);
397 copy_address(&info->dst, &tmp_info.dst);
398 info->port1 = tmp_info.port1;
399 info->port2 = tmp_info.port2;
400 info->verification_tag1 = tmp_info.verification_tag1;
401 info->verification_tag2 = tmp_info.verification_tag2;
402 info->initiate_tag = tmp_info.initiate_tag;
403 info->n_tvbs = tmp_info.n_tvbs;
404 info->init = false0;
405 info->initack = false0;
406 info->check_address = false0;
407 info->firstdata = true1;
408 info->direction = sctp_info->direction;
409 info->instream1 = 0;
410 info->outstream1 = 0;
411 info->instream2 = 0;
412 info->outstream2 = 0;
413 info = calc_checksum(sctp_info, info);
414 info->n_packets = 1;
415 info->error_info_list = NULL((void*)0);
416 info->min_secs = 0xffffffff;
417 info->min_usecs = 0xffffffff;
418 info->max_secs = 0;
419 info->max_usecs = 0;
420 info->min_tsn2 = 0xFFFFFFFF;
421 info->min_tsn1 = 0xffffffff;
422 info->max_tsn1 = 0;
423 info->max_tsn2 = 0;
424 info->max_bytes1 = 0;
425 info->max_bytes2 = 0;
426 info->n_data_chunks = 0;
427 info->n_data_bytes = 0;
428 info->n_data_chunks_ep1 = 0;
429 info->n_data_bytes_ep1 = 0;
430 info->n_data_chunks_ep2 = 0;
431 info->n_data_bytes_ep2 = 0;
432 info->n_sack_chunks_ep1 = 0;
433 info->n_sack_chunks_ep2 = 0;
434 info->n_array_tsn1 = 0;
435 info->n_array_tsn2 = 0;
436 info->n_forward_chunks = 0;
437 info->max_window1 = 0;
438 info->max_window2 = 0;
439 info->min_max = NULL((void*)0);
440 info->sort_tsn1 = g_ptr_array_new_with_free_func(g_free);
441 info->sort_tsn2 = g_ptr_array_new_with_free_func(g_free);
442 info->sort_sack1 = g_ptr_array_new_with_free_func(g_free);
443 info->sort_sack2 = g_ptr_array_new_with_free_func(g_free);
444 info->dir1 = g_new0(sctp_init_collision_t, 1)((sctp_init_collision_t *) g_malloc0_n ((1), sizeof (sctp_init_collision_t
)));
445 info->dir1->init_min_tsn = 0xffffffff;
446 info->dir1->initack_min_tsn = 0xffffffff;
447 info->dir2 = g_new0(sctp_init_collision_t, 1)((sctp_init_collision_t *) g_malloc0_n ((1), sizeof (sctp_init_collision_t
)));
448 info->dir2->init_min_tsn = 0xffffffff;
449 info->dir2->initack_min_tsn = 0xffffffff;
450
451 for (i=0; i < NUM_CHUNKS0x100; i++)
452 {
453 info->chunk_count[i] = 0;
454 info->ep1_chunk_count[i] = 0;
455 info->ep2_chunk_count[i] = 0;
456 }
457 info->addr_chunk_count = NULL((void*)0);
458
459 if (((tvb_get_uint8(sctp_info->tvb[0],0)) == SCTP_INIT_CHUNK_ID1) ||
460 ((tvb_get_uint8(sctp_info->tvb[0],0)) == SCTP_INIT_ACK_CHUNK_ID2) ||
461 ((tvb_get_uint8(sctp_info->tvb[0],0)) == SCTP_DATA_CHUNK_ID0) ||
462 ((tvb_get_uint8(sctp_info->tvb[0],0)) == SCTP_I_DATA_CHUNK_ID0x40) ||
463 ((tvb_get_uint8(sctp_info->tvb[0],0)) == SCTP_SACK_CHUNK_ID3) ||
464 ((tvb_get_uint8(sctp_info->tvb[0],0)) == SCTP_NR_SACK_CHUNK_ID16) ||
465 ((tvb_get_uint8(sctp_info->tvb[0],0)) == SCTP_FORWARD_TSN_CHUNK_ID0xC0))
466 {
467 tsn = g_new0(tsn_t, 1)((tsn_t *) g_malloc0_n ((1), sizeof (tsn_t)));
468 copy_address(&tsn->src, &tmp_info.src);
469 copy_address(&tsn->dst, &tmp_info.dst);
470
471 sack = g_new0(tsn_t, 1)((tsn_t *) g_malloc0_n ((1), sizeof (tsn_t)));
472 copy_address(&sack->src, &tmp_info.src);
473 copy_address(&sack->dst, &tmp_info.dst);
474 sack->secs=tsn->secs = (uint32_t)pinfo->rel_ts.secs;
475 sack->usecs=tsn->usecs = (uint32_t)pinfo->rel_ts.nsecs/1000;
476
477 if (((tvb_get_uint8(sctp_info->tvb[0],0)) == SCTP_DATA_CHUNK_ID0) ||
478 ((tvb_get_uint8(sctp_info->tvb[0],0)) == SCTP_I_DATA_CHUNK_ID0x40) ||
479 ((tvb_get_uint8(sctp_info->tvb[0],0)) == SCTP_SACK_CHUNK_ID3) ||
480 ((tvb_get_uint8(sctp_info->tvb[0],0)) == SCTP_NR_SACK_CHUNK_ID16) ||
481 ((tvb_get_uint8(sctp_info->tvb[0],0)) == SCTP_FORWARD_TSN_CHUNK_ID0xC0))
482 {
483 if (tsn->secs < info->min_secs)
484 {
485 info->min_secs = tsn->secs;
486 info->min_usecs = tsn->usecs;
487 }
488 else if (tsn->secs == info->min_secs && tsn->usecs < info->min_usecs)
489 info->min_usecs = tsn->usecs;
490
491 if (tsn->secs > info->max_secs)
492 {
493 info->max_secs = tsn->secs;
494 info->max_usecs = tsn->usecs;
495 }
496 else if (tsn->secs == info->max_secs && tsn->usecs > info->max_usecs)
497 info->max_usecs = tsn->usecs;
498 }
499
500 sack->frame_number = tsn->frame_number = pinfo->num;
501 }
502 if ((tvb_get_uint8(sctp_info->tvb[0],0) == SCTP_INIT_CHUNK_ID1) || (tvb_get_uint8(sctp_info->tvb[0],0) == SCTP_INIT_ACK_CHUNK_ID2))
503 {
504 info->min_tsn1 = tvb_get_ntohl(sctp_info->tvb[0],INIT_CHUNK_INITIAL_TSN_OFFSET(((((((0 + 1) + 1) + 2) + 4 ) + 4 ) + 2 ) + 2 ));
505 info->verification_tag2 = tvb_get_ntohl(sctp_info->tvb[0], INIT_CHUNK_INITIATE_TAG_OFFSET(((0 + 1) + 1) + 2));
506 info->instream1 = tvb_get_ntohs(sctp_info->tvb[0],INIT_CHUNK_NUMBER_OF_INBOUND_STREAMS_OFFSET((((((0 + 1) + 1) + 2) + 4 ) + 4 ) + 2 ));
507 info->outstream1 = tvb_get_ntohs(sctp_info->tvb[0],INIT_CHUNK_NUMBER_OF_OUTBOUND_STREAMS_OFFSET(((((0 + 1) + 1) + 2) + 4 ) + 4 ));
508 info->arwnd1 = tvb_get_ntohl(sctp_info->tvb[0], INIT_CHUNK_ADV_REC_WINDOW_CREDIT_OFFSET((((0 + 1) + 1) + 2) + 4 ));
509 for (chunk_number = 1; chunk_number < sctp_info->number_of_tvbs; chunk_number++)
510 {
511 type = tvb_get_ntohs(sctp_info->tvb[chunk_number],0);
512 if (type == IPV4ADDRESS_PARAMETER_ID0x0005)
513 {
514 store = g_new(address, 1)((address *) g_malloc_n ((1), sizeof (address)));
515 alloc_address_tvb(NULL((void*)0), store, AT_IPv4, 4, sctp_info->tvb[chunk_number], IPV4_ADDRESS_OFFSET((0 + 2) + 2));
516 info = add_address(store, info, info->direction);
517 }
518 else if (type == IPV6ADDRESS_PARAMETER_ID0x0006)
519 {
520 store = g_new(address, 1)((address *) g_malloc_n ((1), sizeof (address)));
521 alloc_address_tvb(NULL((void*)0), store, AT_IPv6, 16, sctp_info->tvb[chunk_number], IPV6_ADDRESS_OFFSET((0 + 2) + 2));
522 info = add_address(store, info, info->direction);
523 }
524 }
525
526 if (tvb_get_uint8(sctp_info->tvb[0],0) == SCTP_INIT_CHUNK_ID1)
527 {
528 info->init = true1;
529 }
530 else
531 {
532 info->initack_dir = 1;
533 info->initack = true1;
534 }
535
536 idx = tvb_get_uint8(sctp_info->tvb[0],0);
537 if (!IS_SCTP_CHUNK_TYPE(idx)(((idx) <= 16) || ((idx) == 0x40) || ((idx) == 0xC0) || ((
idx) == 0xC1) || ((idx) == 0x80) || ((idx) == 0x81)))
538 idx = OTHER_CHUNKS_INDEX0xfe;
539
540 info->chunk_count[idx]++;
541 info->ep1_chunk_count[idx]++;
542 info = add_chunk_count(&tmp_info.src, info, 1, idx);
543 if (info->direction == 1) {
544 if (tvb_get_uint8(sctp_info->tvb[0],0) == SCTP_INIT_CHUNK_ID1) {
545 info->dir1->init = true1;
546 info->dir1->init_min_tsn = info->min_tsn1;
547 info->dir1->init_vtag = info->verification_tag2;
548 } else if (tvb_get_uint8(sctp_info->tvb[0],0) == SCTP_INIT_ACK_CHUNK_ID2) {
549 info->dir1->initack = true1;
550 info->dir1->initack_min_tsn = info->min_tsn1;
551 info->dir1->initack_vtag = info->verification_tag2;
552 }
553 } else {
554 if (tvb_get_uint8(sctp_info->tvb[0],0) == SCTP_INIT_CHUNK_ID1) {
555 info->dir2->init = true1;
556 info->dir2->init_min_tsn = info->min_tsn1;
557 info->dir2->init_vtag = info->verification_tag2;
558 } else if (tvb_get_uint8(sctp_info->tvb[0],0) == SCTP_INIT_ACK_CHUNK_ID2) {
559 info->dir2->initack = true1;
560 info->dir2->initack_min_tsn = info->min_tsn1;
561 info->dir2->initack_vtag = info->verification_tag2;
562 }
563 }
564 }
565 else
566 {
567 if (((tvb_get_uint8(sctp_info->tvb[0],0)) != SCTP_INIT_CHUNK_ID1) &&
568 ((tvb_get_uint8(sctp_info->tvb[0],0)) != SCTP_INIT_ACK_CHUNK_ID2) &&
569 ((tvb_get_uint8(sctp_info->tvb[0],0)) != SCTP_DATA_CHUNK_ID0) &&
570 ((tvb_get_uint8(sctp_info->tvb[0],0)) != SCTP_I_DATA_CHUNK_ID0x40) &&
571 ((tvb_get_uint8(sctp_info->tvb[0],0)) != SCTP_SACK_CHUNK_ID3) &&
572 ((tvb_get_uint8(sctp_info->tvb[0],0)) != SCTP_NR_SACK_CHUNK_ID16) &&
573 ((tvb_get_uint8(sctp_info->tvb[0],0)) != SCTP_FORWARD_TSN_CHUNK_ID0xC0))
574 {
575 tsn = g_new0(tsn_t, 1)((tsn_t *) g_malloc0_n ((1), sizeof (tsn_t)));
576 sack = g_new0(tsn_t, 1)((tsn_t *) g_malloc0_n ((1), sizeof (tsn_t)));
577 }
578 for (chunk_number = 0; chunk_number < sctp_info->number_of_tvbs; chunk_number++)
579 {
580 idx = tvb_get_uint8(sctp_info->tvb[0],0);
581 if (!IS_SCTP_CHUNK_TYPE(idx)(((idx) <= 16) || ((idx) == 0x40) || ((idx) == 0xC0) || ((
idx) == 0xC1) || ((idx) == 0x80) || ((idx) == 0x81)))
582 idx = OTHER_CHUNKS_INDEX0xfe;
583
584 info->chunk_count[idx]++;
585 info->ep1_chunk_count[idx]++;
586 info = add_chunk_count(&tmp_info.src, info, 1, idx);
587
588 if ((tvb_get_uint8(sctp_info->tvb[chunk_number],0) == SCTP_DATA_CHUNK_ID0) ||
589 (tvb_get_uint8(sctp_info->tvb[chunk_number],0) == SCTP_I_DATA_CHUNK_ID0x40))
590 {
591 datachunk = true1;
592 if (tvb_get_uint8(sctp_info->tvb[chunk_number],0) == SCTP_DATA_CHUNK_ID0) {
593 length = tvb_get_ntohs(sctp_info->tvb[chunk_number], CHUNK_LENGTH_OFFSET((0 + 1) + 1)) - DATA_CHUNK_HEADER_LENGTH((1 + 1 + 2) + 4 + 2 + 2 + 4);
594 } else {
595 length = tvb_get_ntohs(sctp_info->tvb[chunk_number], CHUNK_LENGTH_OFFSET((0 + 1) + 1)) - I_DATA_CHUNK_HEADER_LENGTH((1 + 1 + 2) + 4 + 2 + 2 + 4 + 4);
596 }
597 info->n_data_chunks++;
598 info->n_data_bytes+=length;
599 info->outstream1 = tvb_get_ntohs((sctp_info->tvb)[chunk_number], DATA_CHUNK_STREAM_ID_OFFSET(((((0 + 1) + 1) + 2) + 0) + 4))+1;
600 }
601 if ((tvb_get_uint8(sctp_info->tvb[chunk_number],0) == SCTP_FORWARD_TSN_CHUNK_ID0xC0))
602 {
603 forwardchunk = true1;
604 length = tvb_get_ntohs(sctp_info->tvb[chunk_number], CHUNK_LENGTH_OFFSET((0 + 1) + 1));
605 info->n_forward_chunks++;
606 }
607 if (datachunk || forwardchunk)
608 {
609 tsnumber = tvb_get_ntohl((sctp_info->tvb)[chunk_number], DATA_CHUNK_TSN_OFFSET((((0 + 1) + 1) + 2) + 0));
610 info->firstdata = false0;
611 if (tsnumber < info->min_tsn1)
612 info->min_tsn1 = tsnumber;
613 if (tsnumber > info->max_tsn1)
614 {
615 if (datachunk)
616 {
617 info->n_data_chunks_ep1++;
618 info->n_data_bytes_ep1+=length;
619 }
620 else
621 info->n_forward_chunks_ep1++;
622 info->max_tsn1 = tsnumber;
623 }
624 if (tsn->first_tsn == 0)
625 tsn->first_tsn = tsnumber;
626 if (datachunk)
627 {
628 t_s_n = (uint8_t *)g_malloc(16);
629 tvb_memcpy(sctp_info->tvb[chunk_number], (uint8_t *)(t_s_n),0, 16);
630 }
631 else
632 {
633 t_s_n = (uint8_t *)g_malloc(length);
634 tvb_memcpy(sctp_info->tvb[chunk_number], (uint8_t *)(t_s_n),0, length);
635 }
636 tsn->tsns = g_list_append(tsn->tsns, t_s_n);
637 tsn_s = g_new(struct tsn_sort, 1)((struct tsn_sort *) g_malloc_n ((1), sizeof (struct tsn_sort
)));
638 tsn_s->tsnumber = tsnumber;
639 tsn_s->secs = tsn->secs = (uint32_t)pinfo->rel_ts.secs;
640 tsn_s->usecs = tsn->usecs = (uint32_t)pinfo->rel_ts.nsecs/1000;
641 tsn_s->offset = 0;
642 tsn_s->framenumber = framenumber;
643 if (datachunk)
644 if (tvb_get_uint8(sctp_info->tvb[chunk_number],0) == SCTP_DATA_CHUNK_ID0) {
645 tsn_s->length = length - DATA_CHUNK_HEADER_LENGTH((1 + 1 + 2) + 4 + 2 + 2 + 4);
646 } else {
647 tsn_s->length = length - I_DATA_CHUNK_HEADER_LENGTH((1 + 1 + 2) + 4 + 2 + 2 + 4 + 4);
648 }
649 else
650 tsn_s->length = length;
651 if (tsn->secs < info->min_secs)
652 {
653 info->min_secs = tsn->secs;
654 info->min_usecs = tsn->usecs;
655 }
656 else if (tsn->secs == info->min_secs && tsn->usecs < info->min_usecs)
657 info->min_usecs = tsn->usecs;
658
659 if (tsn->secs > info->max_secs)
660 {
661 info->max_secs = tsn->secs;
662 info->max_usecs = tsn->usecs;
663 }
664 else if (tsn->secs == info->max_secs && tsn->usecs > info->max_usecs)
665 info->max_usecs = tsn->usecs;
666 g_ptr_array_add(info->sort_tsn1, tsn_s);
667 info->n_array_tsn1++;
668 }
669 if ((tvb_get_uint8(sctp_info->tvb[chunk_number],0) == SCTP_SACK_CHUNK_ID3) ||
670 (tvb_get_uint8(sctp_info->tvb[chunk_number],0) == SCTP_NR_SACK_CHUNK_ID16) )
671 {
672 tsnumber = tvb_get_ntohl((sctp_info->tvb)[chunk_number], SACK_CHUNK_CUMULATIVE_TSN_ACK_OFFSET((((0 + 1) + 1) + 2) + 0));
673 if (tsnumber < info->min_tsn2)
674 info->min_tsn2 = tsnumber;
675 if (tsnumber > info->max_tsn2)
676 info->max_tsn2 = tsnumber;
677 length = tvb_get_ntohs(sctp_info->tvb[chunk_number], CHUNK_LENGTH_OFFSET((0 + 1) + 1));
678 if (sack->first_tsn == 0)
679 sack->first_tsn = tsnumber;
680 t_s_n = (uint8_t *)g_malloc(length);
681 tvb_memcpy(sctp_info->tvb[chunk_number], (uint8_t *)(t_s_n),0, length);
682 sack->tsns = g_list_append(sack->tsns, t_s_n);
683 sackchunk = true1;
684 tsn_s = g_new(struct tsn_sort, 1)((struct tsn_sort *) g_malloc_n ((1), sizeof (struct tsn_sort
)));
685 tsn_s->tsnumber = tsnumber;
686 tsn_s->secs = tsn->secs = (uint32_t)pinfo->rel_ts.secs;
687 tsn_s->usecs = tsn->usecs = (uint32_t)pinfo->rel_ts.nsecs/1000;
688 tsn_s->offset = 0;
689 tsn_s->framenumber = framenumber;
690 tsn_s->length = tvb_get_ntohl(sctp_info->tvb[chunk_number], SACK_CHUNK_ADV_REC_WINDOW_CREDIT_OFFSET(((((0 + 1) + 1) + 2) + 0) + 4));
691 if (tsn_s->length > info->max_window1)
692 info->max_window1 = tsn_s->length;
693 if (tsn->secs < info->min_secs)
694 {
695 info->min_secs = tsn->secs;
696 info->min_usecs = tsn->usecs;
697 }
698 else if (tsn->secs == info->min_secs && tsn->usecs < info->min_usecs)
699 info->min_usecs = tsn->usecs;
700
701 if (tsn->secs > info->max_secs)
702 {
703 info->max_secs = tsn->secs;
704 info->max_usecs = tsn->usecs;
705 }
706 else if (tsn->secs == info->max_secs && tsn->usecs > info->max_usecs)
707 info->max_usecs = tsn->usecs;
708 g_ptr_array_add(info->sort_sack2, tsn_s);
709 info->n_sack_chunks_ep2++;
710 }
711 }
712 }
713 if (info->verification_tag1 != 0 || info->verification_tag2 != 0)
714 {
715 uint32_t number;
716 store = g_new(address, 1)((address *) g_malloc_n ((1), sizeof (address)));
717 copy_address(store, &tmp_info.src);
718 info = add_address(store, info, info->direction);
719 store = g_new(address, 1)((address *) g_malloc_n ((1), sizeof (address)));
720 copy_address(store, &tmp_info.dst);
721 if (info->direction == 1)
722 info = add_address(store, info, 2);
723 else
724 info = add_address(store, info, 1);
725 number = pinfo->num;
726 info->frame_numbers=g_list_prepend(info->frame_numbers, GUINT_TO_POINTER(number)((gpointer) (gulong) (number)));
727 if (datachunk || forwardchunk) {
728 info->tsn1 = g_list_prepend(info->tsn1, tsn);
729 tsn_used = true1;
730 }
731 if (sackchunk == true1) {
732 info->sack2 = g_list_prepend(info->sack2, sack);
733 sack_used = true1;
734 }
735 sctp_tapinfo_struct.assoc_info_list = g_list_append(sctp_tapinfo_struct.assoc_info_list, info);
736 }
737 else
738 {
739 char* tmp_str;
740 error = g_new(sctp_error_info_t, 1)((sctp_error_info_t *) g_malloc_n ((1), sizeof (sctp_error_info_t
)));
741 error->frame_number = pinfo->num;
742 error->chunk_info[0] = '\0';
743 if ((tvb_get_uint8(sctp_info->tvb[0],0)) == SCTP_INIT_CHUNK_ID1)
744 {
745 tmp_str = val_to_str_wmem(NULL((void*)0), tvb_get_uint8(sctp_info->tvb[0],0),chunk_type_values,"Reserved (%d)");
746 (void) g_strlcpy(error->chunk_info, tmp_str, 200);
747 wmem_free(NULL((void*)0), tmp_str);
748 }
749 else
750 {
751 for (chunk_number = 0; chunk_number < sctp_info->number_of_tvbs; chunk_number++)
752 {
753 tmp_str = val_to_str_wmem(NULL((void*)0), tvb_get_uint8(sctp_info->tvb[chunk_number],0),chunk_type_values,"Reserved (%d)");
754 (void) g_strlcat(error->chunk_info, tmp_str, 200);
755 wmem_free(NULL((void*)0), tmp_str);
756 }
757 }
758 error->info_text = "INFOS";
759 info->error_info_list = g_list_append(info->error_info_list, error);
760 }
761 }
762 } /* endif (!info) */
763 else
764 {
765 uint32_t number;
766 info->direction = sctp_info->direction;
767
768 if (info->verification_tag1 == 0 && info->verification_tag2 != sctp_info->verification_tag) {
13
←
Assuming field 'verification_tag1' is not equal to 0
→
769 info->verification_tag1 = sctp_info->verification_tag;
770 } else if (info->verification_tag2 == 0 && info->verification_tag1 != sctp_info->verification_tag) {
14
←
Assuming field 'verification_tag2' is not equal to 0
→
771 info->verification_tag2 = sctp_info->verification_tag;
772 }
773 if (((tvb_get_uint8(sctp_info->tvb[0],0)) == SCTP_INIT_CHUNK_ID1) ||
15
←
Assuming the condition is false
→
22
←
Taking false branch
→
774 ((tvb_get_uint8(sctp_info->tvb[0],0)) == SCTP_INIT_ACK_CHUNK_ID2) ||
16
←
Assuming the condition is false
→
775 ((tvb_get_uint8(sctp_info->tvb[0],0)) == SCTP_DATA_CHUNK_ID0) ||
17
←
Assuming the condition is false
→
776 ((tvb_get_uint8(sctp_info->tvb[0],0)) == SCTP_I_DATA_CHUNK_ID0x40) ||
18
←
Assuming the condition is false
→
777 ((tvb_get_uint8(sctp_info->tvb[0],0)) == SCTP_SACK_CHUNK_ID3) ||
19
←
Assuming the condition is false
→
778 ((tvb_get_uint8(sctp_info->tvb[0],0)) == SCTP_NR_SACK_CHUNK_ID16) ||
20
←
Assuming the condition is false
→
779 ((tvb_get_uint8(sctp_info->tvb[0],0)) == SCTP_FORWARD_TSN_CHUNK_ID0xC0))
21
←
Assuming the condition is false
→
780 {
781
782 tsn = g_new0(tsn_t, 1)((tsn_t *) g_malloc0_n ((1), sizeof (tsn_t)));
783 copy_address(&tsn->src, &tmp_info.src);
784 copy_address(&tsn->dst, &tmp_info.dst);
785
786 sack = g_new0(tsn_t, 1)((tsn_t *) g_malloc0_n ((1), sizeof (tsn_t)));
787 copy_address(&sack->src, &tmp_info.src);
788 copy_address(&sack->dst, &tmp_info.dst);
789 sack->secs=tsn->secs = (uint32_t)pinfo->rel_ts.secs;
790 sack->usecs=tsn->usecs = (uint32_t)pinfo->rel_ts.nsecs/1000;
791
792 if (((tvb_get_uint8(sctp_info->tvb[0],0)) == SCTP_DATA_CHUNK_ID0) ||
793 ((tvb_get_uint8(sctp_info->tvb[0],0)) == SCTP_I_DATA_CHUNK_ID0x40) ||
794 ((tvb_get_uint8(sctp_info->tvb[0],0)) == SCTP_SACK_CHUNK_ID3) ||
795 ((tvb_get_uint8(sctp_info->tvb[0],0)) == SCTP_NR_SACK_CHUNK_ID16) ||
796 ((tvb_get_uint8(sctp_info->tvb[0],0)) == SCTP_FORWARD_TSN_CHUNK_ID0xC0))
797 {
798 if (tsn->secs < info->min_secs)
799 {
800 info->min_secs = tsn->secs;
801 info->min_usecs = tsn->usecs;
802 }
803 else if (tsn->secs == info->min_secs && tsn->usecs < info->min_usecs)
804 info->min_usecs = tsn->usecs;
805
806 if (tsn->secs > info->max_secs)
807 {
808 info->max_secs = tsn->secs;
809 info->max_usecs = tsn->usecs;
810 }
811 else if (tsn->secs == info->max_secs && tsn->usecs > info->max_usecs)
812 info->max_usecs = tsn->usecs;
813 }
814 sack->frame_number = tsn->frame_number = pinfo->num;
815 }
816 number = pinfo->num;
817 info->frame_numbers=g_list_prepend(info->frame_numbers, GUINT_TO_POINTER(number)((gpointer) (gulong) (number)));
818
819 store = g_new(address, 1)((address *) g_malloc_n ((1), sizeof (address)));
820 copy_address(store, &tmp_info.src);
821
822 switch (info->direction) {
23
←
Control jumps to the 'default' case at line 829
→
823 case 1:
824 info = add_address(store, info, 1);
825 break;
826 case 2:
827 info = add_address(store, info, 2);
828 break;
829 default:
830 g_free(store);
831 break;
832 }
833
834 store = g_new(address, 1)((address *) g_malloc_n ((1), sizeof (address)));
24
←
 Execution continues on line 834
→
835 copy_address(store, &tmp_info.dst);
836
837 switch (info->direction) {
25
←
Control jumps to the 'default' case at line 844
→
838 case 1:
839 info = add_address(store, info, 2);
840 break;
841 case 2:
842 info = add_address(store, info, 1);
843 break;
844 default:
845 g_free(store);
846 break;
847 }
848
849 if (((tvb_get_uint8(sctp_info->tvb[0],0)) == SCTP_INIT_ACK_CHUNK_ID2) ||
26
←
Assuming the condition is true
→
850 ((tvb_get_uint8(sctp_info->tvb[0],0)) == SCTP_INIT_CHUNK_ID1))
851 {
852 tsnumber = tvb_get_ntohl((sctp_info->tvb)[chunk_number], INIT_CHUNK_INITIAL_TSN_OFFSET(((((((0 + 1) + 1) + 2) + 4 ) + 4 ) + 2 ) + 2 ));
853 if (info->direction
26.1
Field 'direction' is not equal to 2
26.1
Field 'direction' is not equal to 2
 == 2)
27
←
Taking false branch
→
854 {
855 if (tsnumber < info->min_tsn2)
856 info->min_tsn2 = tsnumber;
857 if (tsnumber > info->max_tsn2)
858 info->max_tsn2 = tsnumber;
859 info->instream2 = tvb_get_ntohs(sctp_info->tvb[0],INIT_CHUNK_NUMBER_OF_INBOUND_STREAMS_OFFSET((((((0 + 1) + 1) + 2) + 4 ) + 4 ) + 2 ));
860 info->outstream2 = tvb_get_ntohs(sctp_info->tvb[0],INIT_CHUNK_NUMBER_OF_OUTBOUND_STREAMS_OFFSET(((((0 + 1) + 1) + 2) + 4 ) + 4 ));
861 info->arwnd2 = tvb_get_ntohl(sctp_info->tvb[0],INIT_CHUNK_ADV_REC_WINDOW_CREDIT_OFFSET((((0 + 1) + 1) + 2) + 4 ));
862 info->tsn2 = g_list_prepend(info->tsn2, tsn);
863 tsn_used = true1;
864 }
865 else if (info->direction
27.1
Field 'direction' is not equal to 1
27.1
Field 'direction' is not equal to 1
 == 1)
28
←
Taking false branch
→
866 {
867 if (tsnumber < info->min_tsn1)
868 info->min_tsn1 = tsnumber;
869 if (tsnumber > info->max_tsn1)
870 info->max_tsn1 = tsnumber;
871 info->instream1 = tvb_get_ntohs(sctp_info->tvb[0],INIT_CHUNK_NUMBER_OF_INBOUND_STREAMS_OFFSET((((((0 + 1) + 1) + 2) + 4 ) + 4 ) + 2 ));
872 info->outstream1 = tvb_get_ntohs(sctp_info->tvb[0],INIT_CHUNK_NUMBER_OF_OUTBOUND_STREAMS_OFFSET(((((0 + 1) + 1) + 2) + 4 ) + 4 ));
873 info->arwnd1 = tvb_get_ntohl(sctp_info->tvb[0],INIT_CHUNK_ADV_REC_WINDOW_CREDIT_OFFSET((((0 + 1) + 1) + 2) + 4 ));
874 info->tsn1 = g_list_prepend(info->tsn1, tsn);
875 tsn_used = true1;
876 }
877
878 idx = tvb_get_uint8(sctp_info->tvb[0],0);
879 if (!IS_SCTP_CHUNK_TYPE(idx)(((idx) <= 16) || ((idx) == 0x40) || ((idx) == 0xC0) || ((
idx) == 0xC1) || ((idx) == 0x80) || ((idx) == 0x81)))
29
←
Assuming 'idx' is > 16
→
30
←
Assuming 'idx' is not equal to 64
→
31
←
Assuming 'idx' is not equal to 192
→
32
←
Assuming 'idx' is not equal to 193
→
33
←
Assuming 'idx' is not equal to 128
→
34
←
Assuming 'idx' is not equal to 129
→
35
←
Taking true branch
→
880 idx = OTHER_CHUNKS_INDEX0xfe;
881 info->chunk_count[idx]++;
882 if (info->direction
35.1
Field 'direction' is not equal to 1
35.1
Field 'direction' is not equal to 1
 == 1)
36
←
Taking false branch
→
883 info->ep1_chunk_count[idx]++;
884 else
885 info->ep2_chunk_count[idx]++;
886 info = add_chunk_count(&tmp_info.src, info, info->direction, idx);
887 for (chunk_number = 1; chunk_number < sctp_info->number_of_tvbs; chunk_number++)
37
←
Assuming 'chunk_number' is < field 'number_of_tvbs'
→
38
←
Loop condition is true. Entering loop body
→
62
←
Assuming 'chunk_number' is >= field 'number_of_tvbs'
→
63
←
Loop condition is false. Execution continues on line 903
→
888 {
889 type = tvb_get_ntohs(sctp_info->tvb[chunk_number],0);
890 if (type == IPV4ADDRESS_PARAMETER_ID0x0005)
39
←
Assuming 'type' is equal to IPV4ADDRESS_PARAMETER_ID
→
40
←
Taking true branch
→
891 {
892 store = g_new(address, 1)((address *) g_malloc_n ((1), sizeof (address)));
41
←
Memory is allocated
→
893 alloc_address_tvb(NULL((void*)0), store, AT_IPv4, 4, sctp_info->tvb[chunk_number], IPV4_ADDRESS_OFFSET((0 + 2) + 2));
42
←
Calling 'alloc_address_tvb'
→
54
←
Returning from 'alloc_address_tvb'
→
894 info = add_address(store, info, info->direction);
55
←
Calling 'add_address'
→
61
←
Returning from 'add_address'
→
895 }
896 else if (type == IPV6ADDRESS_PARAMETER_ID0x0006)
897 {
898 store = g_new(address, 1)((address *) g_malloc_n ((1), sizeof (address)));
899 alloc_address_tvb(NULL((void*)0), store, AT_IPv6, 16, sctp_info->tvb[chunk_number], IPV6_ADDRESS_OFFSET((0 + 2) + 2));
900 info = add_address(store, info, info->direction);
901 }
902 }
903 if (info->direction == 1) {
64
←
Potential leak of memory pointed to by 'store'
904 if (info->dir1->init || info->dir1->initack) {
905 info->init_collision = true1;
906 }
907 if (tvb_get_uint8(sctp_info->tvb[0],0) == SCTP_INIT_CHUNK_ID1) {
908 info->dir1->init = true1;
909 info->dir1->init_min_tsn = tvb_get_ntohl((sctp_info->tvb)[0], INIT_CHUNK_INITIAL_TSN_OFFSET(((((((0 + 1) + 1) + 2) + 4 ) + 4 ) + 2 ) + 2 ));
910 info->min_tsn1 = info->dir1->init_min_tsn;
911 info->dir1->init_vtag = tvb_get_ntohl(sctp_info->tvb[0], INIT_CHUNK_INITIATE_TAG_OFFSET(((0 + 1) + 1) + 2));
912 } else if (tvb_get_uint8(sctp_info->tvb[0],0) == SCTP_INIT_ACK_CHUNK_ID2) {
913 info->dir1->initack = true1;
914 info->dir1->initack_min_tsn = tvb_get_ntohl((sctp_info->tvb)[0], INIT_CHUNK_INITIAL_TSN_OFFSET(((((((0 + 1) + 1) + 2) + 4 ) + 4 ) + 2 ) + 2 ));
915 info->min_tsn1 = info->dir1->initack_min_tsn;
916 info->dir1->initack_vtag = tvb_get_ntohl(sctp_info->tvb[0], INIT_CHUNK_INITIATE_TAG_OFFSET(((0 + 1) + 1) + 2));
917 }
918 } else {
919 if (info->dir2->init || info->dir2->initack) {
920 info->init_collision = true1;
921 }
922 if (tvb_get_uint8(sctp_info->tvb[0],0) == SCTP_INIT_CHUNK_ID1) {
923 info->dir2->init = true1;
924 info->dir2->init_min_tsn = tvb_get_ntohl((sctp_info->tvb)[0], INIT_CHUNK_INITIAL_TSN_OFFSET(((((((0 + 1) + 1) + 2) + 4 ) + 4 ) + 2 ) + 2 ));
925 info->min_tsn2 = info->dir2->init_min_tsn;
926 info->dir2->init_vtag = tvb_get_ntohl(sctp_info->tvb[0], INIT_CHUNK_INITIATE_TAG_OFFSET(((0 + 1) + 1) + 2));
927 } else if (tvb_get_uint8(sctp_info->tvb[0],0) == SCTP_INIT_ACK_CHUNK_ID2) {
928 info->dir2->initack = true1;
929 info->dir2->initack_min_tsn = tvb_get_ntohl((sctp_info->tvb)[0], INIT_CHUNK_INITIAL_TSN_OFFSET(((((((0 + 1) + 1) + 2) + 4 ) + 4 ) + 2 ) + 2 ));
930 info->min_tsn2 = info->dir2->initack_min_tsn;
931 info->dir2->initack_vtag = tvb_get_ntohl(sctp_info->tvb[0], INIT_CHUNK_INITIATE_TAG_OFFSET(((0 + 1) + 1) + 2));
932 }
933 }
934 if ((tvb_get_uint8(sctp_info->tvb[0],0)) == SCTP_INIT_ACK_CHUNK_ID2)
935 {
936 info->initack = true1;
937 info->initack_dir = info->direction;
938 }
939 else if ((tvb_get_uint8(sctp_info->tvb[0],0)) == SCTP_INIT_CHUNK_ID1)
940 {
941 info->init = true1;
942 }
943 }
944 else
945 {
946 if (((tvb_get_uint8(sctp_info->tvb[0],0)) != SCTP_INIT_ACK_CHUNK_ID2) &&
947 ((tvb_get_uint8(sctp_info->tvb[0],0)) != SCTP_DATA_CHUNK_ID0) &&
948 ((tvb_get_uint8(sctp_info->tvb[0],0)) != SCTP_I_DATA_CHUNK_ID0x40) &&
949 ((tvb_get_uint8(sctp_info->tvb[0],0)) != SCTP_SACK_CHUNK_ID3) &&
950 ((tvb_get_uint8(sctp_info->tvb[0],0)) != SCTP_NR_SACK_CHUNK_ID16) &&
951 ((tvb_get_uint8(sctp_info->tvb[0],0)) != SCTP_FORWARD_TSN_CHUNK_ID0xC0))
952 {
953 if (!sack)
954 sack = g_new0(tsn_t, 1)((tsn_t *) g_malloc0_n ((1), sizeof (tsn_t)));
955 sack->tsns = NULL((void*)0);
956 sack->first_tsn = 0;
957 if (!tsn)
958 tsn = g_new0(tsn_t, 1)((tsn_t *) g_malloc0_n ((1), sizeof (tsn_t)));
959 tsn->tsns = NULL((void*)0);
960 tsn->first_tsn = 0;
961 }
962 for (chunk_number = 0; chunk_number < sctp_info->number_of_tvbs; chunk_number++)
963 {
964 idx = tvb_get_uint8(sctp_info->tvb[chunk_number],0);
965 if (!IS_SCTP_CHUNK_TYPE(idx)(((idx) <= 16) || ((idx) == 0x40) || ((idx) == 0xC0) || ((
idx) == 0xC1) || ((idx) == 0x80) || ((idx) == 0x81)))
966 idx = OTHER_CHUNKS_INDEX0xfe;
967
968 info->chunk_count[idx]++;
969 if (info->direction == 1)
970 info->ep1_chunk_count[idx]++;
971 else
972 info->ep2_chunk_count[idx]++;
973 info = add_chunk_count(&tmp_info.src, info,info->direction, idx);
974
975 if ((tvb_get_uint8(sctp_info->tvb[chunk_number],0) == SCTP_DATA_CHUNK_ID0) ||
976 (tvb_get_uint8(sctp_info->tvb[chunk_number],0) == SCTP_I_DATA_CHUNK_ID0x40))
977 datachunk = true1;
978 if (tvb_get_uint8(sctp_info->tvb[chunk_number],0) == SCTP_FORWARD_TSN_CHUNK_ID0xC0)
979 forwardchunk = true1;
980 if ((datachunk || forwardchunk) && tsn != NULL((void*)0))
981 {
982 tsnumber = tvb_get_ntohl((sctp_info->tvb)[chunk_number], DATA_CHUNK_TSN_OFFSET((((0 + 1) + 1) + 2) + 0));
983 if (tsn->first_tsn == 0)
984 tsn->first_tsn = tsnumber;
985 if (datachunk)
986 {
987 t_s_n = (uint8_t *)g_malloc(16);
988 tvb_memcpy(sctp_info->tvb[chunk_number], (uint8_t *)(t_s_n),0, 16);
989 if (tvb_get_uint8(sctp_info->tvb[chunk_number],0) == SCTP_DATA_CHUNK_ID0) {
990 length=tvb_get_ntohs(sctp_info->tvb[chunk_number], CHUNK_LENGTH_OFFSET((0 + 1) + 1))-DATA_CHUNK_HEADER_LENGTH((1 + 1 + 2) + 4 + 2 + 2 + 4);
991 } else {
992 length = tvb_get_ntohs(sctp_info->tvb[chunk_number], CHUNK_LENGTH_OFFSET((0 + 1) + 1)) - I_DATA_CHUNK_HEADER_LENGTH((1 + 1 + 2) + 4 + 2 + 2 + 4 + 4);
993 }
994 info->n_data_chunks++;
995 info->n_data_bytes+=length;
996 }
997 else
998 {
999 length=tvb_get_ntohs(sctp_info->tvb[chunk_number], CHUNK_LENGTH_OFFSET((0 + 1) + 1));
1000 t_s_n = (uint8_t *)g_malloc(length);
1001 tvb_memcpy(sctp_info->tvb[chunk_number], (uint8_t *)(t_s_n),0, length);
1002 info->n_forward_chunks++;
1003 }
1004 tsn->tsns = g_list_append(tsn->tsns, t_s_n);
1005
1006 tsn_s = g_new0(struct tsn_sort, 1)((struct tsn_sort *) g_malloc0_n ((1), sizeof (struct tsn_sort
)));
1007 tsn_s->tsnumber = tsnumber;
1008 tsn_s->secs = tsn->secs = (uint32_t)pinfo->rel_ts.secs;
1009 tsn_s->usecs = tsn->usecs = (uint32_t)pinfo->rel_ts.nsecs/1000;
1010 tsn_s->offset = 0;
1011 tsn_s->framenumber = framenumber;
1012 tsn_s->length = length;
1013
1014 if (tsn->secs < info->min_secs)
1015 {
1016 info->min_secs = tsn->secs;
1017 info->min_usecs = tsn->usecs;
1018 }
1019 else if (tsn->secs == info->min_secs && tsn->usecs < info->min_usecs)
1020 info->min_usecs = tsn->usecs;
1021
1022 if (tsn->secs > info->max_secs)
1023 {
1024 info->max_secs = tsn->secs;
1025 info->max_usecs = tsn->usecs;
1026 }
1027 else if (tsn->secs == info->max_secs && tsn->usecs > info->max_usecs)
1028 info->max_usecs = tsn->usecs;
1029
1030 if (info->direction == 1)
1031 {
1032 if (info->firstdata) {
1033 info->firstdata = false0;
1034 if (info->init_collision) {
1035 if (tsnumber != info->min_tsn1) {
1036 info->min_tsn1 = info->dir1->init_min_tsn;
1037 }
1038 info->min_tsn2 = info->dir2->initack_min_tsn;
1039 }
1040 } else {
1041 if(tsnumber < info->min_tsn1) {
1042 info->min_tsn1 = tsnumber;
1043 }
1044 }
1045 if ((info->init || (info->initack && info->initack_dir == 1))&& tsnumber >= info->min_tsn1 && tsnumber <= info->max_tsn1)
1046 {
1047 if (datachunk)
1048 {
1049 info->n_data_chunks_ep1++;
1050 info->n_data_bytes_ep1 += length;
1051 }
1052 else if (forwardchunk)
1053 {
1054 info->n_forward_chunks_ep1++;
1055 }
1056 }
1057 if(tsnumber > info->max_tsn1)
1058 {
1059 info->max_tsn1 = tsnumber;
1060 if (datachunk)
1061 {
1062 info->n_data_chunks_ep1++;
1063 info->n_data_bytes_ep1 += length;
1064 }
1065 else if (forwardchunk)
1066 {
1067 info->n_forward_chunks_ep1++;
1068 }
1069 }
1070 if (datachunk)
1071 {
1072 if (info->init == false0) {
1073 uint16_t tmp = tvb_get_ntohs((sctp_info->tvb)[chunk_number], DATA_CHUNK_STREAM_ID_OFFSET(((((0 + 1) + 1) + 2) + 0) + 4))+1;
1074 if (info->outstream1 < tmp) info->outstream1 = tmp;
1075 }
1076 if (info->initack == false0) {
1077 uint16_t tmp = tvb_get_ntohs((sctp_info->tvb)[chunk_number], DATA_CHUNK_STREAM_ID_OFFSET(((((0 + 1) + 1) + 2) + 0) + 4))+1;
1078 if (info->instream2 < tmp) info->instream2 = tmp;
1079 }
1080 }
1081
1082 g_ptr_array_add(info->sort_tsn1, tsn_s);
1083 info->n_array_tsn1++;
1084 }
1085 else if (info->direction == 2)
1086 {
1087 if (info->firstdata) {
1088 info->firstdata = false0;
1089 if (info->init_collision) {
1090 if (tsnumber != info->min_tsn2) {
1091 info->min_tsn2 = info->dir2->init_min_tsn;
1092 info->initack_dir = 2;
1093 }
1094 info->min_tsn1 = info->dir1->initack_min_tsn;
1095 }
1096 } else {
1097 if(tsnumber < info->min_tsn2)
1098 info->min_tsn2 = tsnumber;
1099 }
1100
1101 if ((info->initack && info->initack_dir == 2)&& tsnumber >= info->min_tsn2 && tsnumber <= info->max_tsn2)
1102 {
1103 if (datachunk)
1104 {
1105 if (tvb_get_uint8(sctp_info->tvb[chunk_number],0) == SCTP_DATA_CHUNK_ID0) {
1106 length = tvb_get_ntohs(sctp_info->tvb[chunk_number], CHUNK_LENGTH_OFFSET((0 + 1) + 1)) - DATA_CHUNK_HEADER_LENGTH((1 + 1 + 2) + 4 + 2 + 2 + 4);
1107 } else {
1108 length = tvb_get_ntohs(sctp_info->tvb[chunk_number], CHUNK_LENGTH_OFFSET((0 + 1) + 1)) - I_DATA_CHUNK_HEADER_LENGTH((1 + 1 + 2) + 4 + 2 + 2 + 4 + 4);
1109 }
1110 info->n_data_chunks_ep2++;
1111 info->n_data_bytes_ep2+=length;
1112 }
1113 else if (forwardchunk)
1114 {
1115 info->n_forward_chunks_ep2++;
1116 }
1117 }
1118 if (tsnumber > info->max_tsn2)
1119 {
1120 info->max_tsn2 = tsnumber;
1121 if (datachunk)
1122 {
1123 if (tvb_get_uint8(sctp_info->tvb[chunk_number],0) == SCTP_DATA_CHUNK_ID0) {
1124 length = tvb_get_ntohs(sctp_info->tvb[chunk_number], CHUNK_LENGTH_OFFSET((0 + 1) + 1)) - DATA_CHUNK_HEADER_LENGTH((1 + 1 + 2) + 4 + 2 + 2 + 4);
1125 } else {
1126 length = tvb_get_ntohs(sctp_info->tvb[chunk_number], CHUNK_LENGTH_OFFSET((0 + 1) + 1)) - I_DATA_CHUNK_HEADER_LENGTH((1 + 1 + 2) + 4 + 2 + 2 + 4 + 4);
1127 }
1128 info->n_data_chunks_ep2++;
1129 info->n_data_bytes_ep2+=length;
1130 }
1131 else if (forwardchunk)
1132 {
1133 info->n_forward_chunks_ep2++;
1134 }
1135 }
1136 if (datachunk)
1137 {
1138 if (info->init == false0) {
1139 uint16_t tmp = tvb_get_ntohs((sctp_info->tvb)[chunk_number], DATA_CHUNK_STREAM_ID_OFFSET(((((0 + 1) + 1) + 2) + 0) + 4))+1;
1140 if (info->instream1 < tmp) info->instream1 = tmp;
1141 }
1142 if (info->initack == false0) {
1143 uint16_t tmp = tvb_get_ntohs((sctp_info->tvb)[chunk_number], DATA_CHUNK_STREAM_ID_OFFSET(((((0 + 1) + 1) + 2) + 0) + 4))+1;
1144 if (info->outstream2 < tmp) info->outstream2 = tmp;
1145 }
1146 }
1147
1148 g_ptr_array_add(info->sort_tsn2, tsn_s);
1149 info->n_array_tsn2++;
1150 }
1151 }
1152 else if (((tvb_get_uint8(sctp_info->tvb[chunk_number],0) == SCTP_SACK_CHUNK_ID3) ||
1153 (tvb_get_uint8(sctp_info->tvb[chunk_number],0) == SCTP_NR_SACK_CHUNK_ID16)) &&
1154 sack != NULL((void*)0))
1155 {
1156 tsnumber = tvb_get_ntohl((sctp_info->tvb)[chunk_number], SACK_CHUNK_CUMULATIVE_TSN_ACK_OFFSET((((0 + 1) + 1) + 2) + 0));
1157 length = tvb_get_ntohs(sctp_info->tvb[chunk_number], CHUNK_LENGTH_OFFSET((0 + 1) + 1));
1158
1159 if (sack->first_tsn == 0)
1160 sack->first_tsn = tsnumber;
1161
1162 t_s_n = (uint8_t *)g_malloc(length);
1163 tvb_memcpy(sctp_info->tvb[chunk_number], (uint8_t *)(t_s_n),0, length);
1164 sack->tsns = g_list_append(sack->tsns, t_s_n);
1165 sackchunk = true1;
1166 tsn_s = g_new0(struct tsn_sort, 1)((struct tsn_sort *) g_malloc0_n ((1), sizeof (struct tsn_sort
)));
1167 tsn_s->tsnumber = tsnumber;
1168 tsn_s->secs = tsn->secs = (uint32_t)pinfo->rel_ts.secs;
1169 tsn_s->usecs = tsn->usecs = (uint32_t)pinfo->rel_ts.nsecs/1000;
1170 tsn_s->offset = 0;
1171 tsn_s->framenumber = framenumber;
1172 tsn_s->length = tvb_get_ntohl(sctp_info->tvb[chunk_number], SACK_CHUNK_ADV_REC_WINDOW_CREDIT_OFFSET(((((0 + 1) + 1) + 2) + 0) + 4));
1173
1174 if (tsn->secs < info->min_secs)
1175 {
1176 info->min_secs = tsn->secs;
1177 info->min_usecs = tsn->usecs;
1178 }
1179 else if (tsn->secs == info->min_secs && tsn->usecs < info->min_usecs)
1180 info->min_usecs = tsn->usecs;
1181
1182 if (tsn->secs > info->max_secs)
1183 {
1184 info->max_secs = tsn->secs;
1185 info->max_usecs = tsn->usecs;
1186 }
1187 else if (tsn->secs == info->max_secs && tsn->usecs > info->max_usecs)
1188 info->max_usecs = tsn->usecs;
1189
1190
1191 if (info->direction == 2)
1192 {
1193 if(tsnumber < info->min_tsn1)
1194 info->min_tsn1 = tsnumber;
1195 if(tsnumber > info->max_tsn1)
1196 info->max_tsn1 = tsnumber;
1197 if (tsn_s->length > info->max_window1)
1198 info->max_window1 = tsn_s->length;
1199 g_ptr_array_add(info->sort_sack1, tsn_s);
1200 info->n_sack_chunks_ep1++;
1201 }
1202 else if (info->direction == 1)
1203 {
1204 if(tsnumber < info->min_tsn2)
1205 info->min_tsn2 = tsnumber;
1206 if(tsnumber > info->max_tsn2)
1207 info->max_tsn2 = tsnumber;
1208 if (tsn_s->length > info->max_window2)
1209 info->max_window2 = tsn_s->length;
1210 g_ptr_array_add(info->sort_sack2, tsn_s);
1211 info->n_sack_chunks_ep2++;
1212 }
1213 }
1214 }
1215 }
1216
1217 if (datachunk || forwardchunk)
1218 {
1219 if (info->direction == 1)
1220 info->tsn1 = g_list_prepend(info->tsn1, tsn);
1221 else if (info->direction == 2)
1222 info->tsn2 = g_list_prepend(info->tsn2, tsn);
1223 tsn_used = true1;
1224 }
1225 if (sackchunk == true1)
1226 {
1227 if (info->direction == 1)
1228 info->sack2 = g_list_prepend(info->sack2, sack);
1229 else if(info->direction == 2)
1230 info->sack1 = g_list_prepend(info->sack1, sack);
1231 sack_used = true1;
1232 }
1233 info->n_tvbs += sctp_info->number_of_tvbs;
1234 sctp_tapinfo_struct.sum_tvbs += sctp_info->number_of_tvbs;
1235 info = calc_checksum(sctp_info, info);
1236 info->n_packets++;
1237 }
1238 if (tsn && !tsn_used)
1239 tsn_free(tsn);
1240 if (sack && !sack_used)
1241 tsn_free(sack);
1242 free_address(&tmp_info.src);
1243 free_address(&tmp_info.dst);
1244 return TAP_PACKET_REDRAW;
1245}
1246
1247
1248/****************************************************************************/
1249void
1250remove_tap_listener_sctp_stat(void)
1251{
1252 if (sctp_tapinfo_struct.is_registered) {
1253 remove_tap_listener(&sctp_tapinfo_struct);
1254 sctp_tapinfo_struct.is_registered = false0;
1255 }
1256}
1257
1258
1259void
1260sctp_stat_scan(void)
1261{
1262 if (!sctp_tapinfo_struct.is_registered) {
1263 register_tap_listener_sctp_stat();
1264 }
1265}
1266
1267const sctp_allassocs_info_t *
1268sctp_stat_get_info(void)
1269{
1270 return &sctp_tapinfo_struct;
1271}
1272
1273const sctp_assoc_info_t *
1274get_sctp_assoc_info(uint16_t assoc_id)
1275{
1276 sctp_tmp_info_t needle = { .assoc_id = assoc_id };
1277 return find_assoc(&needle);
1278}
1279
1280void
1281register_tap_listener_sctp_stat(void)
1282{
1283 GString *error_string;
1284
1285 if (!sctp_tapinfo_struct.is_registered)
1286 {
1287 if ((error_string = register_tap_listener("sctp", &sctp_tapinfo_struct, NULL((void*)0), 0, reset, packet, NULL((void*)0), NULL((void*)0)))) {
1288 simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK0x01, "%s", error_string->str);
1289 g_string_free(error_string, TRUE)(__builtin_constant_p ((!(0))) ? (((!(0))) ? (g_string_free) (
(error_string), ((!(0)))) : g_string_free_and_steal (error_string
)) : (g_string_free) ((error_string), ((!(0)))));
1290 return;
1291 }
1292 sctp_tapinfo_struct.is_registered=true1;
1293 }
1294}
←

/builds/wireshark/wireshark/epan/address.h

1/** @file
2 * Definitions for structures storing addresses, and for the type of
3 * variables holding port-type values
4 *
5 * Wireshark - Network traffic analyzer
6 * By Gerald Combs <[email protected]>
7 * Copyright 1998 Gerald Combs
8 *
9 * SPDX-License-Identifier: GPL-2.0-or-later
10 */
11
12#ifndef __ADDRESS_H__
13#define __ADDRESS_H__
14
15#include <string.h> /* for memcmp */
16
17#include "tvbuff.h"
18#include <epan/wmem_scopes.h>
19#include <wsutil/ws_assert.h>
20#include <wsutil/inet_cidr.h>
21
22#ifdef __cplusplus
23extern "C" {
24#endif /* __cplusplus */
25
26/* Types of "global" addresses Wireshark knows about. */
27/* Address types can be added here if there are many dissectors that use them or just
28 * within a specific dissector.
29 * If an address type is added here, it must be "registered" within address_types.c
30 * For dissector address types, just use the address_type_dissector_register function
31 * from address_types.h
32 *
33 * AT_NUMERIC - a numeric address type can consist of a uint8_t, uint16_t, uint32_t or uint64_t
34 * value. If no correct length is provided, to avoid data bleed, a uint8_t is
35 * assumed. Only representation (aka conversion of value to string) is implemented for this type.
36 */
37typedef enum {
38 AT_NONE, /* no link-layer address */
39 AT_ETHER, /* MAC (Ethernet, 802.x, FDDI) address */
40 AT_IPv4, /* IPv4 */
41 AT_IPv6, /* IPv6 */
42 AT_IPX, /* IPX */
43 AT_FC, /* Fibre Channel */
44 AT_FCWWN, /* Fibre Channel WWN */
45 AT_STRINGZ, /* null-terminated string */
46 AT_EUI64, /* IEEE EUI-64 */
47 AT_IB, /* Infiniband GID/LID */
48 AT_AX25, /* AX.25 */
49 AT_VINES, /* Banyan Vines address */
50 AT_NUMERIC, /* Numeric address type. */
51 AT_MCTP, /* MCTP */
52
53 AT_END_OF_LIST /* Must be last in list */
54} address_type;
55
56typedef struct _address {
57 int type; /* type of address */
58 int len; /* length of address, in bytes */
59 const void *data; /* pointer to address data */
60
61 /* private */
62 void *priv;
63} address;
64
65#define ADDRESS_INIT(type, len, data){type, len, data, ((void*)0)} {type, len, data, NULL((void*)0)}
66#define ADDRESS_INIT_NONE{AT_NONE, 0, ((void*)0), ((void*)0)} ADDRESS_INIT(AT_NONE, 0, NULL){AT_NONE, 0, ((void*)0), ((void*)0)}
67
68static inline void
69clear_address(address *addr)
70{
71 addr->type = AT_NONE;
72 addr->len = 0;
73 addr->data = NULL((void*)0);
74 addr->priv = NULL((void*)0);
75}
76
77/** Initialize an address with the given values.
78 *
79 * @param addr [in,out] The address to initialize.
80 * @param addr_type [in] Address type.
81 * @param addr_len [in] The length in bytes of the address data. For example, 4 for
82 * AT_IPv4 or sizeof(ws_in6_addr) for AT_IPv6.
83 * @param addr_data [in] Pointer to the address data.
84 */
85static inline void
86set_address(address *addr, int addr_type, int addr_len, const void *addr_data) {
87 if (addr_len == 0) {
88 /* Zero length must mean no data */
89 ws_assert(addr_data == NULL)do { if ((1) && !(addr_data == ((void*)0))) ws_log_fatal_full
("", LOG_LEVEL_ERROR, "epan/address.h", 89, __func__, "assertion failed: %s"
, "addr_data == ((void*)0)"); } while (0);
90 } else {
91 /* Must not be AT_NONE - AT_NONE must have no data */
92 ws_assert(addr_type != AT_NONE)do { if ((1) && !(addr_type != AT_NONE)) ws_log_fatal_full
("", LOG_LEVEL_ERROR, "epan/address.h", 92, __func__, "assertion failed: %s"
, "addr_type != AT_NONE"); } while (0);
93 /* Make sure we *do* have data */
94 ws_assert(addr_data != NULL)do { if ((1) && !(addr_data != ((void*)0))) ws_log_fatal_full
("", LOG_LEVEL_ERROR, "epan/address.h", 94, __func__, "assertion failed: %s"
, "addr_data != ((void*)0)"); } while (0);
95 }
96 addr->type = addr_type;
97 addr->len = addr_len;
98 addr->data = addr_data;
99 addr->priv = NULL((void*)0);
100}
101
102static inline void
103set_address_ipv4(address *addr, const ipv4_addr_and_mask *ipv4) {
104 addr->type = AT_IPv4;
105 addr->len = 4;
106 uint32_t val = g_htonl(ipv4->addr)(((((guint32) ( (((guint32) (ipv4->addr) & (guint32) 0x000000ffU
) << 24) | (((guint32) (ipv4->addr) & (guint32) 0x0000ff00U
) << 8) | (((guint32) (ipv4->addr) & (guint32) 0x00ff0000U
) >> 8) | (((guint32) (ipv4->addr) & (guint32) 0xff000000U
) >> 24))))));
107 addr->priv = g_memdup2(&val, sizeof(val));
108 addr->data = addr->priv;
109}
110
111static inline void
112set_address_ipv6(address *addr, const ipv6_addr_and_prefix *ipv6) {
113 set_address(addr, AT_IPv6, sizeof(ws_in6_addr), &ipv6->addr);
114}
115
116/** Initialize an address from TVB data.
117 *
118 * Same as set_address but it takes a TVB and an offset. This is preferred
119 * over passing the return value of tvb_get_ptr() to set_address().
120 *
121 * This calls tvb_get_ptr() (including throwing any exceptions) before
122 * modifying the address.
123 *
124 * @param addr [in,out] The address to initialize.
125 * @param addr_type [in] Address type.
126 * @param tvb [in] Pointer to the TVB.
127 * @param offset [in] Offset within the TVB.
128 * @param addr_len [in] The length in bytes of the address data. For example, 4 for
129 * AT_IPv4 or sizeof(ws_in6_addr) for AT_IPv6.
130 */
131static inline void
132set_address_tvb(address *addr, int addr_type, int addr_len, tvbuff_t *tvb, int offset) {
133 const void *p;
134
135 if (addr_len != 0) {
136 /* Must not be AT_NONE - AT_NONE must have no data */
137 ws_assert(addr_type != AT_NONE)do { if ((1) && !(addr_type != AT_NONE)) ws_log_fatal_full
("", LOG_LEVEL_ERROR, "epan/address.h", 137, __func__, "assertion failed: %s"
, "addr_type != AT_NONE"); } while (0);
138 p = tvb_get_ptr(tvb, offset, addr_len);
139 } else
140 p = NULL((void*)0);
141 set_address(addr, addr_type, addr_len, p);
142}
143
144/** Initialize an address with the given values, allocating a new buffer
145 * for the address data using wmem-scoped memory.
146 *
147 * @param scope [in] The lifetime of the allocated memory, e.g., pinfo->pool
148 * @param addr [in,out] The address to initialize.
149 * @param addr_type [in] Address type.
150 * @param addr_len [in] The length in bytes of the address data. For example, 4 for
151 * AT_IPv4 or sizeof(ws_in6_addr) for AT_IPv6.
152 * @param addr_data [in] Pointer to the address data.
153 */
154static inline void
155alloc_address_wmem(wmem_allocator_t *scope, address *addr,
156 int addr_type, int addr_len, const void *addr_data) {
157 ws_assert(addr)do { if ((1) && !(addr)) ws_log_fatal_full("", LOG_LEVEL_ERROR
, "epan/address.h", 157, __func__, "assertion failed: %s", "addr"
); } while (0);
44
←
Assuming 'addr' is non-null
→
45
←
Taking false branch
→
46
←
Loop condition is false. Exiting loop
→
158 clear_address(addr);
159 addr->type = addr_type;
160 if (addr_len
46.1
'addr_len' is not equal to 0
46.1
'addr_len' is not equal to 0
 == 0) {
161 /* Zero length must mean no data */
162 ws_assert(addr_data == NULL)do { if ((1) && !(addr_data == ((void*)0))) ws_log_fatal_full
("", LOG_LEVEL_ERROR, "epan/address.h", 162, __func__, "assertion failed: %s"
, "addr_data == ((void*)0)"); } while (0);
163 /* Nothing to copy */
164 return;
165 }
166 /* Must not be AT_NONE - AT_NONE must have no data */
167 ws_assert(addr_type != AT_NONE)do { if ((1) && !(addr_type != AT_NONE)) ws_log_fatal_full
("", LOG_LEVEL_ERROR, "epan/address.h", 167, __func__, "assertion failed: %s"
, "addr_type != AT_NONE"); } while (0);
47
←
Taking false branch
→
48
←
Taking false branch
→
168 /* Make sure we *do* have data to copy */
169 ws_assert(addr_data != NULL)do { if ((1) && !(addr_data != ((void*)0))) ws_log_fatal_full
("", LOG_LEVEL_ERROR, "epan/address.h", 169, __func__, "assertion failed: %s"
, "addr_data != ((void*)0)"); } while (0);
49
←
Loop condition is false. Exiting loop
→
50
←
Assuming 'addr_data' is not equal to null
→
51
←
Taking false branch
→
52
←
Loop condition is false. Exiting loop
→
170 addr->data = addr->priv = wmem_memdup(scope, addr_data, addr_len);
171 addr->len = addr_len;
172}
173
174/** Allocate an address from TVB data.
175 *
176 * Same as alloc_address_wmem but it takes a TVB and an offset.
177 *
178 * @param scope [in] The lifetime of the allocated memory, e.g., pinfo->pool
179 * @param addr [in,out] The address to initialize.
180 * @param addr_type [in] Address type.
181 * @param addr_len [in] The length in bytes of the address data. For example, 4 for
182 * AT_IPv4 or sizeof(ws_in6_addr) for AT_IPv6.
183 * @param tvb [in] Pointer to the TVB.
184 * @param offset [in] Offset within the TVB.
185 */
186static inline void
187alloc_address_tvb(wmem_allocator_t *scope, address *addr,
188 int addr_type, int addr_len, tvbuff_t *tvb, int offset) {
189 const void *p;
190
191 p = tvb_get_ptr(tvb, offset, addr_len);
192 alloc_address_wmem(scope, addr, addr_type, addr_len, p);
43
←
Calling 'alloc_address_wmem'
→
53
←
Returning from 'alloc_address_wmem'
→
193}
194
195/** Compare two addresses.
196 *
197 * @param addr1 [in] The first address to compare.
198 * @param addr2 [in] The second address to compare.
199 * @return 0 if the addresses are equal,
200 * A positive number if addr1 > addr2 in some nondefined metric,
201 * A negative number if addr1 < addr2 in some nondefined metric.
202 */
203static inline int
204cmp_address(const address *addr1, const address *addr2) {
205 if (addr1->type > addr2->type) return 1;
206 if (addr1->type < addr2->type) return -1;
207 if (addr1->len > addr2->len) return 1;
208 if (addr1->len < addr2->len) return -1;
209 if (addr1->len == 0) {
210 /*
211 * memcmp(NULL, NULL, 0) is *not* guaranteed to work, so
212 * if both addresses are zero-length, don't compare them
213 * (there's nothing to compare, so they're equal).
214 */
215 return 0;
216 }
217 return memcmp(addr1->data, addr2->data, addr1->len);
218}
219
220/** Check two addresses for equality.
221 *
222 * Given two addresses, return "true" if they're equal, "false" otherwise.
223 * Addresses are equal only if they have the same type and length; if the
224 * length is zero, they are then equal, otherwise the data must be the
225 * same.
226 *
227 * @param addr1 [in] The first address to compare.
228 * @param addr2 [in] The second address to compare.
229 * @return true if the addresses are equal, false otherwise.
230 */
231static inline bool_Bool
232addresses_equal(const address *addr1, const address *addr2) {
233 /*
234 * memcmp(NULL, NULL, 0) is *not* guaranteed to work, so
235 * if both addresses are zero-length, don't compare them
236 * (there's nothing to compare, so they're equal).
237 */
238 if (addr1->type == addr2->type &&
239 addr1->len == addr2->len &&
240 (addr1->len == 0 ||
241 memcmp(addr1->data, addr2->data, addr1->len) == 0))
242 return true1;
243 return false0;
244}
245
246/** Check the data of two addresses for equality.
247 *
248 * Given two addresses, return "true" if they have the same length and,
249 * their data is equal, "false" otherwise.
250 * The address types are ignored. This can be used to compare custom
251 * address types defined with address_type_dissector_register.
252 *
253 * @param addr1 [in] The first address to compare.
254 * @param addr2 [in] The second address to compare.
255 * @return true if the addresses are equal, false otherwise.
256 */
257static inline bool_Bool
258addresses_data_equal(const address *addr1, const address *addr2) {
259 if ( addr1->len == addr2->len
260 && memcmp(addr1->data, addr2->data, addr1->len) == 0
261 ) return true1;
262 return false0;
263}
264
265/** Perform a shallow copy of the address (both addresses point to the same
266 * memory location).
267 *
268 * @param to [in,out] The destination address.
269 * @param from [in] The source address.
270 *
271 * \warning Make sure 'from' memory stays valid for the lifetime of this object.
272 * Also it's strongly recommended to use this function instead of copy-assign.
273 */
274static inline void
275copy_address_shallow(address *to, const address *from) {
276 set_address(to, from->type, from->len, from->data);
277}
278
279/** Copy an address, allocating a new buffer for the address data
280 * using wmem-scoped memory.
281 *
282 * @param scope [in] The lifetime of the allocated memory, e.g., pinfo->pool
283 * @param to [in,out] The destination address.
284 * @param from [in] The source address.
285 */
286static inline void
287copy_address_wmem(wmem_allocator_t *scope, address *to, const address *from) {
288 alloc_address_wmem(scope, to, from->type, from->len, from->data);
289}
290
291/** Copy an address, allocating a new buffer for the address data.
292 *
293 * @param to [in,out] The destination address.
294 * @param from [in] The source address.
295 */
296static inline void
297copy_address(address *to, const address *from) {
298 copy_address_wmem(NULL((void*)0), to, from);
299}
300
301/** Free an address allocated with wmem-scoped memory.
302 *
303 * @param scope [in] The lifetime of the allocated memory, e.g., pinfo->pool
304 * @param addr [in,out] The address whose data to free.
305 */
306static inline void
307free_address_wmem(wmem_allocator_t *scope, address *addr) {
308 /* Because many dissectors set 'type = AT_NONE' to mean clear we check for that */
309 if (addr->type != AT_NONE && addr->len > 0 && addr->priv != NULL((void*)0)) {
310 /* Make sure API use is correct */
311 /* if priv is not null then data == priv */
312 ws_assert(addr->data == addr->priv)do { if ((1) && !(addr->data == addr->priv)) ws_log_fatal_full
("", LOG_LEVEL_ERROR, "epan/address.h", 312, __func__, "assertion failed: %s"
, "addr->data == addr->priv"); } while (0);
313 wmem_free(scope, addr->priv);
314 }
315 clear_address(addr);
316}
317
318/** Free an address.
319 *
320 * @param addr [in,out] The address whose data to free.
321 */
322static inline void
323free_address(address *addr) {
324 free_address_wmem(NULL((void*)0), addr);
325}
326
327/** Hash an address into a hash value (which must already have been set).
328 *
329 * @param hash_val The existing hash value.
330 * @param addr The address to add.
331 * @return The new hash value.
332 */
333static inline unsigned
334add_address_to_hash(unsigned hash_val, const address *addr) {
335 const uint8_t *hash_data = (const uint8_t *)(addr)->data;
336 int idx;
337
338 for (idx = 0; idx < (addr)->len; idx++) {
339 hash_val += hash_data[idx];
340 hash_val += ( hash_val << 10 );
341 hash_val ^= ( hash_val >> 6 );
342 }
343 return hash_val;
344}
345
346/** Hash an address into a hash value (which must already have been set).
347 * 64-bit version of add_address_to_hash().
348 *
349 * @param hash_val The existing hash value.
350 * @param addr The address to add.
351 * @return The new hash value.
352 */
353static inline uint64_t
354add_address_to_hash64(uint64_t hash_val, const address *addr) {
355 const uint8_t *hash_data = (const uint8_t *)(addr)->data;
356 int idx;
357
358 for (idx = 0; idx < (addr)->len; idx++) {
359 hash_val += hash_data[idx];
360 hash_val += ( hash_val << 10 );
361 hash_val ^= ( hash_val >> 6 );
362 }
363 return hash_val;
364}
365
366WS_DLL_PUBLIC__attribute__ ((visibility ("default"))) extern unsigned address_to_bytes(const address *addr, uint8_t *buf, unsigned buf_len);
367
368/* Types of port numbers Wireshark knows about. */
369typedef enum {
370 PT_NONE, /* no port number */
371 PT_SCTP, /* SCTP */
372 PT_TCP, /* TCP */
373 PT_UDP, /* UDP */
374 PT_DCCP, /* DCCP */
375 PT_IPX, /* IPX sockets */
376 PT_DDP, /* DDP AppleTalk connection */
377 PT_IDP, /* XNS IDP sockets */
378 PT_USB, /* USB endpoint 0xffff means the host */
379 PT_I2C,
380 PT_IBQP, /* Infiniband QP number */
381 PT_BLUETOOTH,
382 PT_IWARP_MPA, /* iWarp MPA */
383 PT_MCTP
384} port_type;
385
386#ifdef __cplusplus
387}
388#endif /* __cplusplus */
389
390#endif /* __ADDRESS_H__ */
391
392/*
393 * Editor modelines - https://www.wireshark.org/tools/modelines.html
394 *
395 * Local variables:
396 * c-basic-offset: 4
397 * tab-width: 8
398 * indent-tabs-mode: nil
399 * End:
400 *
401 * vi: set shiftwidth=4 tabstop=8 expandtab:
402 * :indentSize=4:tabSize=8:noTabs=true:
403 */