-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathcapinfos.c
1523 lines (1327 loc) · 44 KB
/
capinfos.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/* capinfos.c
* Reports capture file information including # of packets, duration, others
*
* Copyright 2004 Ian Schorr
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <[email protected]>
* Copyright 1998 Gerald Combs
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/*
* 2009-09-19: jyoung
*
* New capinfos features
*
* Continue processing additional files after
* a wiretap open failure. The new -C option
* reverts to capinfos' original behavior which
* is to cancel any further file processing at
* first file open failure.
*
* Change the behavior of how the default display
* of all infos is initiated. This gets rid of a
* special post getopt() argument count test.
*
* Add new table output format (with related options)
* This feature allows outputting the various infos
* into a tab delimited text file, or to a comma
* separated variables file (*.csv) instead of the
* original "long" format.
*
* 2011-04-05: wmeier
* behaviour changed: Upon exit capinfos will return
* an error status if an error occurred at any
* point during "continuous" file processing.
* (Previously a success status was always
* returned if the -C option was not used).
*
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <locale.h>
#include <errno.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_GETOPT_H
#include <getopt.h>
#endif
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#include <glib.h>
#ifdef HAVE_LIBZ
#include <zlib.h> /* to get the libz version number */
#endif
#include <wsutil/privileges.h>
#include <wsutil/filesystem.h>
#include <wsutil/crash_info.h>
#include <wsutil/copyright_info.h>
#include <wsutil/os_version_info.h>
#include <wsutil/ws_version_info.h>
#ifdef HAVE_PLUGINS
#include <wsutil/plugins.h>
#endif
#include "wtap.h"
#include <wsutil/report_err.h>
#include <wsutil/str_util.h>
#include <wsutil/file_util.h>
#ifdef HAVE_LIBGCRYPT
#include <wsutil/wsgcrypt.h>
#endif
#ifndef HAVE_GETOPT
#include "wsutil/wsgetopt.h"
#endif
#ifdef _WIN32
#include <wsutil/unicode-utils.h>
#endif /* _WIN32 */
#include "version_info.h"
/*
* By default capinfos now continues processing
* the next filename if and when wiretap detects
* a problem opening a file.
* Use the '-C' option to revert back to original
* capinfos behavior which is to abort any
* additional file processing at first open file
* failure.
*/
static gboolean continue_after_wtap_open_offline_failure = TRUE;
/*
* table report variables
*/
static gboolean long_report = TRUE; /* By default generate long report */
static gchar table_report_header = TRUE; /* Generate column header by default */
static gchar field_separator = '\t'; /* Use TAB as field separator by default */
static gchar quote_char = '\0'; /* Do NOT quote fields by default */
static gboolean machine_readable = FALSE; /* Display machine-readable numbers */
/*
* capinfos has the ability to report on a number of
* various characteristics ("infos") for each input file.
*
* By default reporting of all info fields is enabled.
*
* Optionally the reporting of any specific info field
* or combination of info fields can be enabled with
* individual options.
*/
static gboolean report_all_infos = TRUE; /* Report all infos */
static gboolean cap_file_type = TRUE; /* Report capture type */
static gboolean cap_file_encap = TRUE; /* Report encapsulation */
static gboolean cap_snaplen = TRUE; /* Packet size limit (snaplen)*/
static gboolean cap_packet_count = TRUE; /* Report packet count */
static gboolean cap_file_size = TRUE; /* Report file size */
static gboolean cap_comment = TRUE; /* Display the capture comment */
static gboolean cap_data_size = TRUE; /* Report packet byte size */
static gboolean cap_duration = TRUE; /* Report capture duration */
static gboolean cap_start_time = TRUE; /* Report capture start time */
static gboolean cap_end_time = TRUE; /* Report capture end time */
static gboolean time_as_secs = FALSE; /* Report time values as raw seconds */
static gboolean cap_data_rate_byte = TRUE; /* Report data rate bytes/sec */
static gboolean cap_data_rate_bit = TRUE; /* Report data rate bites/sec */
static gboolean cap_packet_size = TRUE; /* Report average packet size */
static gboolean cap_packet_rate = TRUE; /* Report average packet rate */
static gboolean cap_order = TRUE; /* Report if packets are in chronological order (True/False) */
#ifdef HAVE_LIBGCRYPT
static gboolean cap_file_hashes = TRUE; /* Calculate file hashes */
#endif
#ifdef USE_GOPTION
static gboolean cap_help = FALSE;
static gboolean table_report = FALSE;
static GOptionEntry general_entries[] =
{
/* General */
{ "type", 't', 0, G_OPTION_ARG_NONE, &cap_file_type,
"display the capture file type", NULL },
{ "Encapsulation", 'E', 0, G_OPTION_ARG_NONE, &cap_file_encap,
"display the capture file encapsulation", NULL },
#ifdef HAVE_LIBGCRYPT
{ "Hash", 'H', 0, G_OPTION_ARG_NONE, &cap_file_hashes,
"display the SHA1, RMD160, and MD5 hashes of the file", NULL },
#endif /* HAVE_LIBGCRYPT */
{ "capture-comment", 'k', 0, G_OPTION_ARG_NONE, &cap_comment,
"display the capture comment ", NULL },
{ NULL,'\0',0,G_OPTION_ARG_NONE,NULL,NULL,NULL }
};
static GOptionEntry size_entries[] =
{
/* Size */
{ "packets", 'c', 0, G_OPTION_ARG_NONE, &cap_packet_count,
"display the number of packets", NULL },
{ "size", 's', 0, G_OPTION_ARG_NONE, &cap_file_size,
"display the size of the file (in bytes)", NULL },
{ "tot-len-of-pkts", 'd', 0, G_OPTION_ARG_NONE, &cap_data_size,
"display the total length of all packets (in bytes)", NULL },
{ "snap", 'l', 0, G_OPTION_ARG_NONE, &cap_snaplen,
"display the packet size limit (snapshot length)", NULL },
{ NULL,'\0',0,G_OPTION_ARG_NONE,NULL,NULL,NULL }
};
static GOptionEntry time_entries[] =
{
/* Time */
{ "duration", 'u', 0, G_OPTION_ARG_NONE, &cap_duration,
"display the capture duration (in seconds)", NULL },
{ "start", 'a', 0, G_OPTION_ARG_NONE, &cap_start_time,
"display the capture start time", NULL },
{ "end", 'e', 0, G_OPTION_ARG_NONE, &cap_end_time,
"display the capture end time", NULL },
{ "cron", 'o', 0, G_OPTION_ARG_NONE, &cap_order,
"display the capture file chronological status (True/False)", NULL },
{ "start-end-time-sec", 'S', 0, G_OPTION_ARG_NONE, &time_as_secs,
"display start and end times as seconds", NULL },
{ NULL,'\0',0,G_OPTION_ARG_NONE,NULL,NULL,NULL }
};
static GOptionEntry stats_entries[] =
{
/* Statistics */
{ "bytes", 'y', 0, G_OPTION_ARG_NONE, &cap_data_rate_byte,
"display average data rate (in bytes/s)", NULL },
{ "bits", 'i', 0, G_OPTION_ARG_NONE, &cap_data_rate_bit,
"display average data rate (in bits/s)", NULL },
{ "packet-bytes", 'z', 0, G_OPTION_ARG_NONE, &cap_packet_size,
"display average packet size (in bytes)", NULL },
{ "packets", 'x', 0, G_OPTION_ARG_NONE, &cap_packet_rate,
"display average packet rate (in packets/s)", NULL },
{ NULL,'\0',0,G_OPTION_ARG_NONE,NULL,NULL,NULL }
};
static GOptionEntry output_format_entries[] =
{
/* Output format */
{ "long", 'L', 0, G_OPTION_ARG_NONE, &long_report,
"generate long report (default)", NULL },
{ "Table", 'T', 0, G_OPTION_ARG_NONE, &table_report,
"generate table report", NULL },
{ "machine-readable", 'M', 0, G_OPTION_ARG_NONE, &machine_readable,
"display machine-readable (unabbreviated) values in long reports", NULL },
{ NULL,'\0',0,G_OPTION_ARG_NONE,NULL,NULL,NULL }
};
static GOptionEntry table_report_entries[] =
{
/* Table report */
{ "header-rec", 'R', 0, G_OPTION_ARG_NONE, &table_report_header,
"generate header record (default)", NULL },
{ "no-table", 'r', 0, G_OPTION_ARG_NONE, &table_report_header,
"do not generate header record", NULL },
{ NULL,'\0',0,G_OPTION_ARG_NONE,NULL,NULL,NULL }
};
static GOptionEntry misc_entries[] =
{
{ "helpcompat", 'h', 0, G_OPTION_ARG_NONE, &cap_help,
"display help", NULL },
{ NULL,'\0',0,G_OPTION_ARG_NONE,NULL,NULL,NULL }
};
GOptionContext *ctx;
GOptionGroup *general_grp, *size_grp, *time_grp, *stats_grp, *output_grp, *table_report_grp;
GError *parse_err = NULL;
#endif /* USE_GOPTION */
#ifdef HAVE_LIBGCRYPT
#define HASH_SIZE_SHA1 20
#define HASH_SIZE_RMD160 20
#define HASH_SIZE_MD5 16
#define HASH_STR_SIZE (41) /* Max hash size * 2 + '\0' */
#define HASH_BUF_SIZE (1024 * 1024)
static gchar file_sha1[HASH_STR_SIZE];
static gchar file_rmd160[HASH_STR_SIZE];
static gchar file_md5[HASH_STR_SIZE];
#define FILE_HASH_OPT "H"
#else
#define FILE_HASH_OPT ""
#endif /* HAVE_LIBGCRYPT */
/*
* If we have at least two packets with time stamps, and they're not in
* order - i.e., the later packet has a time stamp older than the earlier
* packet - the time stamps are known not to be in order.
*
* If every packet has a time stamp, and they're all in order, the time
* stamp is known to be in order.
*
* Otherwise, we have no idea.
*/
typedef enum {
IN_ORDER,
NOT_IN_ORDER,
ORDER_UNKNOWN
} order_t;
typedef struct _capture_info {
const char *filename;
guint16 file_type;
gboolean iscompressed;
int file_encap;
gint64 filesize;
gchar *comment;
guint64 packet_bytes;
gboolean times_known;
double start_time;
double stop_time;
guint32 packet_count;
gboolean snap_set; /* If set in capture file header */
guint32 snaplen; /* value from the capture file header */
guint32 snaplen_min_inferred; /* If caplen < len for 1 or more rcds */
guint32 snaplen_max_inferred; /* ... */
gboolean drops_known;
guint32 drop_count;
double duration;
double packet_rate;
double packet_size;
double data_rate; /* in bytes */
gboolean know_order;
order_t order;
int *encap_counts; /* array of per_packet encap counts; array has one entry per wtap_encap type */
} capture_info;
static void
enable_all_infos(void)
{
report_all_infos = TRUE;
cap_file_type = TRUE;
cap_file_encap = TRUE;
cap_snaplen = TRUE;
cap_packet_count = TRUE;
cap_file_size = TRUE;
cap_comment = TRUE;
cap_data_size = TRUE;
cap_duration = TRUE;
cap_start_time = TRUE;
cap_end_time = TRUE;
cap_order = TRUE;
cap_data_rate_byte = TRUE;
cap_data_rate_bit = TRUE;
cap_packet_size = TRUE;
cap_packet_rate = TRUE;
#ifdef HAVE_LIBGCRYPT
cap_file_hashes = TRUE;
#endif /* HAVE_LIBGCRYPT */
}
static void
disable_all_infos(void)
{
report_all_infos = FALSE;
cap_file_type = FALSE;
cap_file_encap = FALSE;
cap_snaplen = FALSE;
cap_packet_count = FALSE;
cap_file_size = FALSE;
cap_comment = FALSE;
cap_data_size = FALSE;
cap_duration = FALSE;
cap_start_time = FALSE;
cap_end_time = FALSE;
cap_order = FALSE;
cap_data_rate_byte = FALSE;
cap_data_rate_bit = FALSE;
cap_packet_size = FALSE;
cap_packet_rate = FALSE;
#ifdef HAVE_LIBGCRYPT
cap_file_hashes = FALSE;
#endif /* HAVE_LIBGCRYPT */
}
static const gchar *
order_string(order_t order)
{
switch (order) {
case IN_ORDER:
return "True";
case NOT_IN_ORDER:
return "False";
case ORDER_UNKNOWN:
return "Unknown";
default:
return "???"; /* "cannot happen" (the next step is "Profit!") */
}
}
static gchar *
time_string(time_t timer, capture_info *cf_info, gboolean want_lf)
{
const gchar *lf = want_lf ? "\n" : "";
static gchar time_string_buf[20];
char *time_string_ctime;
if (cf_info->times_known && cf_info->packet_count > 0) {
if (time_as_secs) {
/* XXX - Would it be useful to show sub-second precision? */
g_snprintf(time_string_buf, 20, "%lu%s", (unsigned long)timer, lf);
return time_string_buf;
} else {
time_string_ctime = ctime(&timer);
if (time_string_ctime == NULL) {
g_snprintf(time_string_buf, 20, "Not representable%s", lf);
return time_string_buf;
}
if (!want_lf) {
/*
* The ctime() function returns a string formatted as:
* "Www Mmm dd hh:mm:ss yyyy\n"
* The unwanted '\n' is the 24th character.
*/
time_string_ctime[24] = '\0';
}
return time_string_ctime;
}
}
g_snprintf(time_string_buf, 15, "n/a%s", lf);
return time_string_buf;
}
static void print_value(const gchar *text_p1, gint width, const gchar *text_p2, double value) {
if (value > 0.0)
printf("%s%.*f%s\n", text_p1, width, value, text_p2);
else
printf("%sn/a\n", text_p1);
}
static void
print_stats(const gchar *filename, capture_info *cf_info)
{
const gchar *file_type_string, *file_encap_string;
time_t start_time_t;
time_t stop_time_t;
gchar *size_string;
/* Build printable strings for various stats */
file_type_string = wtap_file_type_subtype_string(cf_info->file_type);
file_encap_string = wtap_encap_string(cf_info->file_encap);
start_time_t = (time_t)cf_info->start_time;
stop_time_t = (time_t)cf_info->stop_time;
if (filename) printf ("File name: %s\n", filename);
if (cap_file_type) printf ("File type: %s%s\n",
file_type_string,
cf_info->iscompressed ? " (gzip compressed)" : "");
if (cap_file_encap) printf ("File encapsulation: %s\n", file_encap_string);
if (cap_file_encap && (cf_info->file_encap == WTAP_ENCAP_PER_PACKET)) {
int i;
for (i=0; i<WTAP_NUM_ENCAP_TYPES; i++) {
if (cf_info->encap_counts[i] > 0)
printf(" %s\n", wtap_encap_string(i));
}
}
if (cap_snaplen && cf_info->snap_set)
printf ("Packet size limit: file hdr: %u bytes\n", cf_info->snaplen);
else if (cap_snaplen && !cf_info->snap_set)
printf ("Packet size limit: file hdr: (not set)\n");
if (cf_info->snaplen_max_inferred > 0) {
if (cf_info->snaplen_min_inferred == cf_info->snaplen_max_inferred)
printf ("Packet size limit: inferred: %u bytes\n", cf_info->snaplen_min_inferred);
else
printf ("Packet size limit: inferred: %u bytes - %u bytes (range)\n",
cf_info->snaplen_min_inferred, cf_info->snaplen_max_inferred);
}
if (cap_packet_count) {
printf ("Number of packets: ");
if (machine_readable) {
printf ("%u\n", cf_info->packet_count);
} else {
size_string = format_size(cf_info->packet_count, format_size_unit_none);
printf ("%s\n", size_string);
g_free(size_string);
}
}
if (cap_file_size) {
printf ("File size: ");
if (machine_readable) {
printf ("%" G_GINT64_MODIFIER "d bytes\n", cf_info->filesize);
} else {
size_string = format_size(cf_info->filesize, format_size_unit_bytes);
printf ("%s\n", size_string);
g_free(size_string);
}
}
if (cap_data_size) {
printf ("Data size: ");
if (machine_readable) {
printf ("%" G_GINT64_MODIFIER "u bytes\n", cf_info->packet_bytes);
} else {
size_string = format_size(cf_info->packet_bytes, format_size_unit_bytes);
printf ("%s\n", size_string);
g_free(size_string);
}
}
if (cf_info->times_known) {
if (cap_duration) /* XXX - shorten to hh:mm:ss */
print_value("Capture duration: ", 0, " seconds", cf_info->duration);
if (cap_start_time)
printf ("Start time: %s", time_string(start_time_t, cf_info, TRUE));
if (cap_end_time)
printf ("End time: %s", time_string(stop_time_t, cf_info, TRUE));
if (cap_data_rate_byte) {
printf ("Data byte rate: ");
if (machine_readable) {
print_value("", 2, " bytes/sec", cf_info->data_rate);
} else {
size_string = format_size((gint64)cf_info->data_rate, format_size_unit_bytes_s);
printf ("%s\n", size_string);
g_free(size_string);
}
}
if (cap_data_rate_bit) {
printf ("Data bit rate: ");
if (machine_readable) {
print_value("", 2, " bits/sec", cf_info->data_rate*8);
} else {
size_string = format_size((gint64)(cf_info->data_rate*8), format_size_unit_bits_s);
printf ("%s\n", size_string);
g_free(size_string);
}
}
}
if (cap_packet_size) printf ("Average packet size: %.2f bytes\n", cf_info->packet_size);
if (cf_info->times_known) {
if (cap_packet_rate) {
printf ("Average packet rate: ");
if (machine_readable) {
print_value("", 2, " packets/sec", cf_info->packet_rate);
} else {
size_string = format_size((gint64)cf_info->packet_rate, format_size_unit_packets_s);
printf ("%s\n", size_string);
g_free(size_string);
}
}
}
#ifdef HAVE_LIBGCRYPT
if (cap_file_hashes) {
printf ("SHA1: %s\n", file_sha1);
printf ("RIPEMD160: %s\n", file_rmd160);
printf ("MD5: %s\n", file_md5);
}
#endif /* HAVE_LIBGCRYPT */
if (cap_order) printf ("Strict time order: %s\n", order_string(cf_info->order));
if (cap_comment && cf_info->comment)
printf ("Capture comment: %s\n", cf_info->comment);
}
static void
putsep(void)
{
if (field_separator) putchar(field_separator);
}
static void
putquote(void)
{
if (quote_char) putchar(quote_char);
}
static void
print_stats_table_header_label(const gchar *label)
{
putsep();
putquote();
printf("%s", label);
putquote();
}
static void
print_stats_table_header(void)
{
putquote();
printf("File name");
putquote();
if (cap_file_type) print_stats_table_header_label("File type");
if (cap_file_encap) print_stats_table_header_label("File encapsulation");
if (cap_snaplen) print_stats_table_header_label("Packet size limit");
if (cap_snaplen) print_stats_table_header_label("Packet size limit min (inferred)");
if (cap_snaplen) print_stats_table_header_label("Packet size limit max (inferred)");
if (cap_packet_count) print_stats_table_header_label("Number of packets");
if (cap_file_size) print_stats_table_header_label("File size (bytes)");
if (cap_data_size) print_stats_table_header_label("Data size (bytes)");
if (cap_duration) print_stats_table_header_label("Capture duration (seconds)");
if (cap_start_time) print_stats_table_header_label("Start time");
if (cap_end_time) print_stats_table_header_label("End time");
if (cap_data_rate_byte) print_stats_table_header_label("Data byte rate (bytes/sec)");
if (cap_data_rate_bit) print_stats_table_header_label("Data bit rate (bits/sec)");
if (cap_packet_size) print_stats_table_header_label("Average packet size (bytes)");
if (cap_packet_rate) print_stats_table_header_label("Average packet rate (packets/sec)");
#ifdef HAVE_LIBGCRYPT
if (cap_file_hashes) {
print_stats_table_header_label("SHA1");
print_stats_table_header_label("RIPEMD160");
print_stats_table_header_label("MD5");
}
#endif /* HAVE_LIBGCRYPT */
if (cap_order) print_stats_table_header_label("Strict time order");
if (cap_comment) print_stats_table_header_label("Capture comment");
printf("\n");
}
static void
print_stats_table(const gchar *filename, capture_info *cf_info)
{
const gchar *file_type_string, *file_encap_string;
time_t start_time_t;
time_t stop_time_t;
/* Build printable strings for various stats */
file_type_string = wtap_file_type_subtype_string(cf_info->file_type);
file_encap_string = wtap_encap_string(cf_info->file_encap);
start_time_t = (time_t)cf_info->start_time;
stop_time_t = (time_t)cf_info->stop_time;
if (filename) {
putquote();
printf("%s", filename);
putquote();
}
if (cap_file_type) {
putsep();
putquote();
printf("%s", file_type_string);
putquote();
}
/* ToDo: If WTAP_ENCAP_PER_PACKET, show the list of encapsulations encountered;
* Output a line for each different encap with all fields repeated except
* the encapsulation field which has "Per Packet: ..." for each
* encapsulation type seen ?
*/
if (cap_file_encap) {
putsep();
putquote();
printf("%s", file_encap_string);
putquote();
}
if (cap_snaplen) {
putsep();
putquote();
if (cf_info->snap_set)
printf("%u", cf_info->snaplen);
else
printf("(not set)");
putquote();
if (cf_info->snaplen_max_inferred > 0) {
putsep();
putquote();
printf("%u", cf_info->snaplen_min_inferred);
putquote();
putsep();
putquote();
printf("%u", cf_info->snaplen_max_inferred);
putquote();
}
else {
putsep();
putquote();
printf("n/a");
putquote();
putsep();
putquote();
printf("n/a");
putquote();
}
}
if (cap_packet_count) {
putsep();
putquote();
printf("%u", cf_info->packet_count);
putquote();
}
if (cap_file_size) {
putsep();
putquote();
printf("%" G_GINT64_MODIFIER "d", cf_info->filesize);
putquote();
}
if (cap_data_size) {
putsep();
putquote();
printf("%" G_GINT64_MODIFIER "u", cf_info->packet_bytes);
putquote();
}
if (cap_duration) {
putsep();
putquote();
if (cf_info->times_known)
printf("%f", cf_info->duration);
else
printf("n/a");
putquote();
}
if (cap_start_time) {
putsep();
putquote();
printf("%s", time_string(start_time_t, cf_info, FALSE));
putquote();
}
if (cap_end_time) {
putsep();
putquote();
printf("%s", time_string(stop_time_t, cf_info, FALSE));
putquote();
}
if (cap_data_rate_byte) {
putsep();
putquote();
if (cf_info->times_known)
printf("%.2f", cf_info->data_rate);
else
printf("n/a");
putquote();
}
if (cap_data_rate_bit) {
putsep();
putquote();
if (cf_info->times_known)
printf("%.2f", cf_info->data_rate*8);
else
printf("n/a");
putquote();
}
if (cap_packet_size) {
putsep();
putquote();
printf("%.2f", cf_info->packet_size);
putquote();
}
if (cap_packet_rate) {
putsep();
putquote();
if (cf_info->times_known)
printf("%.2f", cf_info->packet_rate);
else
printf("n/a");
putquote();
}
#ifdef HAVE_LIBGCRYPT
if (cap_file_hashes) {
putsep();
putquote();
printf("%s", file_sha1);
putquote();
putsep();
putquote();
printf("%s", file_rmd160);
putquote();
putsep();
putquote();
printf("%s", file_md5);
putquote();
}
#endif /* HAVE_LIBGCRYPT */
if (cap_order) {
putsep();
putquote();
printf("%s", order_string(cf_info->order));
putquote();
}
if (cap_comment) {
putsep();
putquote();
printf("%s", cf_info->comment);
putquote();
}
printf("\n");
}
static int
process_cap_file(wtap *wth, const char *filename)
{
int status = 0;
int err;
gchar *err_info;
gint64 size;
gint64 data_offset;
guint32 packet = 0;
gint64 bytes = 0;
guint32 snaplen_min_inferred = 0xffffffff;
guint32 snaplen_max_inferred = 0;
const struct wtap_pkthdr *phdr;
capture_info cf_info;
gboolean have_times = TRUE;
double start_time = 0;
double stop_time = 0;
double cur_time = 0;
double prev_time = 0;
gboolean know_order = FALSE;
order_t order = IN_ORDER;
wtapng_section_t *shb_inf;
gchar *p;
cf_info.encap_counts = g_new0(int,WTAP_NUM_ENCAP_TYPES);
/* Tally up data that we need to parse through the file to find */
while (wtap_read(wth, &err, &err_info, &data_offset)) {
phdr = wtap_phdr(wth);
if (phdr->presence_flags & WTAP_HAS_TS) {
prev_time = cur_time;
cur_time = nstime_to_sec(&phdr->ts);
if (packet == 0) {
start_time = cur_time;
stop_time = cur_time;
prev_time = cur_time;
}
if (cur_time < prev_time) {
order = NOT_IN_ORDER;
}
if (cur_time < start_time) {
start_time = cur_time;
}
if (cur_time > stop_time) {
stop_time = cur_time;
}
} else {
have_times = FALSE; /* at least one packet has no time stamp */
if (order != NOT_IN_ORDER)
order = ORDER_UNKNOWN;
}
if (phdr->rec_type == REC_TYPE_PACKET) {
bytes+=phdr->len;
packet++;
/* If caplen < len for a rcd, then presumably */
/* 'Limit packet capture length' was done for this rcd. */
/* Keep track as to the min/max actual snapshot lengths */
/* seen for this file. */
if (phdr->caplen < phdr->len) {
if (phdr->caplen < snaplen_min_inferred)
snaplen_min_inferred = phdr->caplen;
if (phdr->caplen > snaplen_max_inferred)
snaplen_max_inferred = phdr->caplen;
}
/* Per-packet encapsulation */
if (wtap_file_encap(wth) == WTAP_ENCAP_PER_PACKET) {
if ((phdr->pkt_encap > 0) && (phdr->pkt_encap < WTAP_NUM_ENCAP_TYPES)) {
cf_info.encap_counts[phdr->pkt_encap] += 1;
} else {
fprintf(stderr, "capinfos: Unknown per-packet encapsulation: %d [frame number: %d]\n", phdr->pkt_encap, packet);
}
}
}
} /* while */
if (err != 0) {
fprintf(stderr,
"capinfos: An error occurred after reading %u packets from \"%s\": %s.\n",
packet, filename, wtap_strerror(err));
switch (err) {
case WTAP_ERR_SHORT_READ:
status = 1;
fprintf(stderr,
" (will continue anyway, checksums might be incorrect)\n");
break;
case WTAP_ERR_UNSUPPORTED:
case WTAP_ERR_UNSUPPORTED_ENCAP:
case WTAP_ERR_BAD_FILE:
case WTAP_ERR_DECOMPRESS:
fprintf(stderr, "(%s)\n", err_info);
g_free(err_info);
/* fallthrough */
default:
g_free(cf_info.encap_counts);
return 1;
}
}
/* File size */
size = wtap_file_size(wth, &err);
if (size == -1) {
fprintf(stderr,
"capinfos: Can't get size of \"%s\": %s.\n",
filename, g_strerror(err));
g_free(cf_info.encap_counts);
return 1;
}
cf_info.filesize = size;
/* File Type */
cf_info.file_type = wtap_file_type_subtype(wth);
cf_info.iscompressed = wtap_iscompressed(wth);
/* File Encapsulation */
cf_info.file_encap = wtap_file_encap(wth);
/* Packet size limit (snaplen) */
cf_info.snaplen = wtap_snapshot_length(wth);
if (cf_info.snaplen > 0)
cf_info.snap_set = TRUE;
else
cf_info.snap_set = FALSE;
cf_info.snaplen_min_inferred = snaplen_min_inferred;
cf_info.snaplen_max_inferred = snaplen_max_inferred;
/* # of packets */
cf_info.packet_count = packet;
/* File Times */
cf_info.times_known = have_times;
cf_info.start_time = start_time;
cf_info.stop_time = stop_time;
cf_info.duration = stop_time-start_time;
cf_info.know_order = know_order;
cf_info.order = order;
/* Number of packet bytes */
cf_info.packet_bytes = bytes;
cf_info.data_rate = 0.0;
cf_info.packet_rate = 0.0;
cf_info.packet_size = 0.0;
if (packet > 0) {
if (cf_info.duration > 0.0) {
cf_info.data_rate = (double)bytes / (stop_time-start_time); /* Data rate per second */
cf_info.packet_rate = (double)packet / (stop_time-start_time); /* packet rate per second */
}
cf_info.packet_size = (double)bytes / packet; /* Avg packet size */
}
cf_info.comment = NULL;
shb_inf = wtap_file_get_shb_info(wth);
if (shb_inf) {
/* opt_comment is always 0-terminated by pcapng_read_section_header_block */
cf_info.comment = g_strdup(shb_inf->opt_comment);
}
g_free(shb_inf);
if (cf_info.comment) {
/* multi-line comments would conflict with the formatting that capinfos uses
we replace linefeeds with spaces */
p = cf_info.comment;
while (*p != '\0') {
if (*p == '\n')
*p = ' ';
p++;
}
}
if (long_report) {
print_stats(filename, &cf_info);
} else {
print_stats_table(filename, &cf_info);
}
g_free(cf_info.encap_counts);
g_free(cf_info.comment);