3 * Text-mode variant of Wireshark, along the lines of tcpdump and snoop,
4 * by Gilbert Ramirez <gram@alumni.rice.edu> and Guy Harris <guy@alum.mit.edu>.
6 * Wireshark - Network traffic analyzer
7 * By Gerald Combs <gerald@wireshark.org>
8 * Copyright 1998 Gerald Combs
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version 2
13 * of the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
39 #ifdef HAVE_WINSOCK2_H
40 # include <winsock2.h>
48 # include <sys/capability.h>
51 #ifndef HAVE_GETOPT_LONG
52 #include "wsutil/wsgetopt.h"
57 #include <epan/exceptions.h>
58 #include <epan/epan-int.h>
59 #include <epan/epan.h>
61 #include <wsutil/clopts_common.h>
62 #include <wsutil/cmdarg_err.h>
63 #include <wsutil/crash_info.h>
64 #include <wsutil/filesystem.h>
65 #include <wsutil/file_util.h>
66 #include <wsutil/privileges.h>
67 #include <wsutil/report_message.h>
68 #include <ws_version_info.h>
69 #include <wiretap/wtap_opttypes.h>
70 #include <wiretap/pcapng.h>
73 #include <epan/timestamp.h>
74 #include <epan/packet.h>
76 #include <epan/wslua/init_wslua.h>
78 #include "frame_tvbuff.h"
79 #include <epan/disabled_protos.h>
80 #include <epan/prefs.h>
81 #include <epan/column.h>
82 #include <epan/decode_as.h>
83 #include <epan/print.h>
84 #include <epan/addr_resolv.h>
86 #include "ui/capture_ui_utils.h"
89 #include "ui/ui_util.h"
90 #include "ui/decode_as_utils.h"
91 #include "ui/filter_files.h"
92 #include "ui/cli/tshark-tap.h"
93 #include "ui/cli/tap-exportobject.h"
94 #include "ui/tap_export_pdu.h"
95 #include "ui/dissect_opts.h"
96 #include "ui/failure_message.h"
97 #if defined(HAVE_LIBSMI)
98 #include "epan/oids.h"
100 #if defined(HAVE_GEOIP)
101 #include "epan/geoip_db.h"
103 #include "register.h"
104 #include <epan/epan_dissect.h>
105 #include <epan/tap.h>
106 #include <epan/stat_tap_ui.h>
107 #include <epan/conversation_table.h>
108 #include <epan/srt_table.h>
109 #include <epan/rtd_table.h>
110 #include <epan/ex-opt.h>
111 #include <epan/exported_pdu.h>
113 #include "capture_opts.h"
115 #include "caputils/capture-pcap-util.h"
118 #include "caputils/capture_ifinfo.h"
120 #include "caputils/capture-wpcap.h"
121 #include <wsutil/os_version_info.h>
122 #include <wsutil/unicode-utils.h>
124 #include <capchild/capture_session.h>
125 #include <capchild/capture_sync.h>
126 #include <capture_info.h>
127 #endif /* HAVE_LIBPCAP */
129 #include <epan/funnel.h>
131 #include <wsutil/str_util.h>
132 #include <wsutil/utf8_entities.h>
139 #include <wsutil/plugins.h>
143 #define INVALID_OPTION 1
144 #define INVALID_INTERFACE 2
145 #define INVALID_FILE 2
146 #define INVALID_FILTER 2
147 #define INVALID_EXPORT 2
148 #define INVALID_CAPABILITY 2
149 #define INVALID_TAP 2
150 #define INVALID_DATA_LINK 2
151 #define INVALID_CAPTURE 2
152 #define INIT_FAILED 2
155 * values 128..65535 are capture+dissect options, 65536 is used by
156 * ui/commandline.c, so start tshark-specific options 1000 after this
158 #define LONGOPT_COLOR (65536+1000)
161 #define tshark_debug(...) g_warning(__VA_ARGS__)
163 #define tshark_debug(...)
166 static guint32 cum_bytes;
167 static const frame_data *ref;
168 static frame_data ref_frame;
169 static frame_data *prev_dis;
170 static frame_data prev_dis_frame;
171 static frame_data *prev_cap;
172 static frame_data prev_cap_frame;
174 static gboolean perform_two_pass_analysis;
175 static guint32 epan_auto_reset_count = 0;
176 static gboolean epan_auto_reset = FALSE;
179 * The way the packet decode is to be written.
182 WRITE_TEXT, /* summary or detail text */
183 WRITE_XML, /* PDML or PSML */
184 WRITE_FIELDS, /* User defined list of fields */
185 WRITE_JSON, /* JSON */
186 WRITE_JSON_RAW, /* JSON only raw hex */
187 WRITE_EK /* JSON bulk insert to Elasticsearch */
188 /* Add CSV and the like here */
191 static output_action_e output_action;
192 static gboolean do_dissection; /* TRUE if we have to dissect each packet */
193 static gboolean print_packet_info; /* TRUE if we're to print packet information */
194 static gint print_summary = -1; /* TRUE if we're to print packet summary information */
195 static gboolean print_details; /* TRUE if we're to print packet details information */
196 static gboolean print_hex; /* TRUE if we're to print hex/ascci information */
197 static gboolean line_buffered;
198 static gboolean really_quiet = FALSE;
199 static gchar* delimiter_char = " ";
200 static gboolean dissect_color = FALSE;
202 static print_format_e print_format = PR_FMT_TEXT;
203 static print_stream_t *print_stream = NULL;
205 static output_fields_t* output_fields = NULL;
206 static gchar **protocolfilter = NULL;
207 static pf_flags protocolfilter_flags = PF_NONE;
209 /* The line separator used between packets, changeable via the -S option */
210 static const char *separator = "";
214 * TRUE if we're to print packet counts to keep track of captured packets.
216 static gboolean print_packet_counts;
218 static capture_options global_capture_opts;
219 static capture_session global_capture_session;
220 static info_data_t global_info_data;
223 static gboolean infodelay; /* if TRUE, don't print capture info in SIGINFO handler */
224 static gboolean infoprint; /* if TRUE, print capture info after clearing infodelay */
227 static gboolean capture(void);
228 static void report_counts(void);
230 static BOOL WINAPI capture_cleanup(DWORD);
232 static void capture_cleanup(int);
234 static void report_counts_siginfo(int);
238 #else /* HAVE_LIBPCAP */
240 static char *output_file_name;
242 #endif /* HAVE_LIBPCAP */
244 static void reset_epan_mem(capture_file *cf, epan_dissect_t *edt, gboolean tree, gboolean visual);
245 static gboolean process_cap_file(capture_file *, char *, int, gboolean, int, gint64);
246 static gboolean process_packet_single_pass(capture_file *cf,
247 epan_dissect_t *edt, gint64 offset, struct wtap_pkthdr *whdr,
248 const guchar *pd, guint tap_flags);
249 static void show_print_file_io_error(int err);
250 static gboolean write_preamble(capture_file *cf);
251 static gboolean print_packet(capture_file *cf, epan_dissect_t *edt);
252 static gboolean write_finale(void);
254 static void failure_warning_message(const char *msg_format, va_list ap);
255 static void open_failure_message(const char *filename, int err,
256 gboolean for_writing);
257 static void read_failure_message(const char *filename, int err);
258 static void write_failure_message(const char *filename, int err);
259 static void failure_message_cont(const char *msg_format, va_list ap);
263 static GHashTable *output_only_tables = NULL;
266 const char *sstr; /* The short string */
267 const char *lstr; /* The long string */
271 string_compare(gconstpointer a, gconstpointer b)
273 return strcmp(((const struct string_elem *)a)->sstr,
274 ((const struct string_elem *)b)->sstr);
278 string_elem_print(gpointer data, gpointer not_used _U_)
280 fprintf(stderr, " %s - %s\n",
281 ((struct string_elem *)data)->sstr,
282 ((struct string_elem *)data)->lstr);
286 list_capture_types(void) {
288 struct string_elem *captypes;
291 captypes = g_new(struct string_elem, WTAP_NUM_FILE_TYPES_SUBTYPES);
293 fprintf(stderr, "tshark: The available capture file types for the \"-F\" flag are:\n");
294 for (i = 0; i < WTAP_NUM_FILE_TYPES_SUBTYPES; i++) {
295 if (wtap_dump_can_open(i)) {
296 captypes[i].sstr = wtap_file_type_subtype_short_string(i);
297 captypes[i].lstr = wtap_file_type_subtype_string(i);
298 list = g_slist_insert_sorted(list, &captypes[i], string_compare);
301 g_slist_foreach(list, string_elem_print, NULL);
307 list_read_capture_types(void) {
309 struct string_elem *captypes;
311 const char *magic = "Magic-value-based";
312 const char *heuristic = "Heuristics-based";
314 /* this is a hack, but WTAP_NUM_FILE_TYPES_SUBTYPES is always >= number of open routines so we're safe */
315 captypes = g_new(struct string_elem, WTAP_NUM_FILE_TYPES_SUBTYPES);
317 fprintf(stderr, "tshark: The available read file types for the \"-X read_format:\" option are:\n");
318 for (i = 0; open_routines[i].name != NULL; i++) {
319 captypes[i].sstr = open_routines[i].name;
320 captypes[i].lstr = (open_routines[i].type == OPEN_INFO_MAGIC) ? magic : heuristic;
321 list = g_slist_insert_sorted(list, &captypes[i], string_compare);
323 g_slist_foreach(list, string_elem_print, NULL);
329 print_usage(FILE *output)
331 fprintf(output, "\n");
332 fprintf(output, "Usage: tshark [options] ...\n");
333 fprintf(output, "\n");
336 fprintf(output, "Capture interface:\n");
337 fprintf(output, " -i <interface> name or idx of interface (def: first non-loopback)\n");
338 fprintf(output, " -f <capture filter> packet filter in libpcap filter syntax\n");
339 #ifdef HAVE_PCAP_CREATE
340 fprintf(output, " -s <snaplen> packet snapshot length (def: appropriate maximum)\n");
342 fprintf(output, " -s <snaplen> packet snapshot length (def: %u)\n", WTAP_MAX_PACKET_SIZE_STANDARD);
344 fprintf(output, " -p don't capture in promiscuous mode\n");
345 #ifdef HAVE_PCAP_CREATE
346 fprintf(output, " -I capture in monitor mode, if available\n");
348 #ifdef CAN_SET_CAPTURE_BUFFER_SIZE
349 fprintf(output, " -B <buffer size> size of kernel buffer (def: %dMB)\n", DEFAULT_CAPTURE_BUFFER_SIZE);
351 fprintf(output, " -y <link type> link layer type (def: first appropriate)\n");
352 fprintf(output, " -D print list of interfaces and exit\n");
353 fprintf(output, " -L print list of link-layer types of iface and exit\n");
354 fprintf(output, "\n");
355 fprintf(output, "Capture stop conditions:\n");
356 fprintf(output, " -c <packet count> stop after n packets (def: infinite)\n");
357 fprintf(output, " -a <autostop cond.> ... duration:NUM - stop after NUM seconds\n");
358 fprintf(output, " filesize:NUM - stop this file after NUM KB\n");
359 fprintf(output, " files:NUM - stop after NUM files\n");
360 /*fprintf(output, "\n");*/
361 fprintf(output, "Capture output:\n");
362 fprintf(output, " -b <ringbuffer opt.> ... duration:NUM - switch to next file after NUM secs\n");
363 fprintf(output, " filesize:NUM - switch to next file after NUM KB\n");
364 fprintf(output, " files:NUM - ringbuffer: replace after NUM files\n");
365 #endif /* HAVE_LIBPCAP */
366 #ifdef HAVE_PCAP_REMOTE
367 fprintf(output, "RPCAP options:\n");
368 fprintf(output, " -A <user>:<password> use RPCAP password authentication\n");
370 /*fprintf(output, "\n");*/
371 fprintf(output, "Input file:\n");
372 fprintf(output, " -r <infile> set the filename to read from (- to read from stdin)\n");
374 fprintf(output, "\n");
375 fprintf(output, "Processing:\n");
376 fprintf(output, " -2 perform a two-pass analysis\n");
377 fprintf(output, " -M <packet count> perform session auto reset\n");
378 fprintf(output, " -R <read filter> packet Read filter in Wireshark display filter syntax\n");
379 fprintf(output, " (requires -2)\n");
380 fprintf(output, " -Y <display filter> packet displaY filter in Wireshark display filter\n");
381 fprintf(output, " syntax\n");
382 fprintf(output, " -n disable all name resolutions (def: all enabled)\n");
383 fprintf(output, " -N <name resolve flags> enable specific name resolution(s): \"mnNtCd\"\n");
384 fprintf(output, " -d %s ...\n", DECODE_AS_ARG_TEMPLATE);
385 fprintf(output, " \"Decode As\", see the man page for details\n");
386 fprintf(output, " Example: tcp.port==8888,http\n");
387 fprintf(output, " -H <hosts file> read a list of entries from a hosts file, which will\n");
388 fprintf(output, " then be written to a capture file. (Implies -W n)\n");
389 fprintf(output, " --enable-protocol <proto_name>\n");
390 fprintf(output, " enable dissection of proto_name\n");
391 fprintf(output, " --disable-protocol <proto_name>\n");
392 fprintf(output, " disable dissection of proto_name\n");
393 fprintf(output, " --enable-heuristic <short_name>\n");
394 fprintf(output, " enable dissection of heuristic protocol\n");
395 fprintf(output, " --disable-heuristic <short_name>\n");
396 fprintf(output, " disable dissection of heuristic protocol\n");
398 /*fprintf(output, "\n");*/
399 fprintf(output, "Output:\n");
400 fprintf(output, " -w <outfile|-> write packets to a pcap-format file named \"outfile\"\n");
401 fprintf(output, " (or to the standard output for \"-\")\n");
402 fprintf(output, " -C <config profile> start with specified configuration profile\n");
403 fprintf(output, " -F <output file type> set the output file type, default is pcapng\n");
404 fprintf(output, " an empty \"-F\" option will list the file types\n");
405 fprintf(output, " -V add output of packet tree (Packet Details)\n");
406 fprintf(output, " -O <protocols> Only show packet details of these protocols, comma\n");
407 fprintf(output, " separated\n");
408 fprintf(output, " -P print packet summary even when writing to a file\n");
409 fprintf(output, " -S <separator> the line separator to print between packets\n");
410 fprintf(output, " -x add output of hex and ASCII dump (Packet Bytes)\n");
411 fprintf(output, " -T pdml|ps|psml|json|jsonraw|ek|tabs|text|fields|?\n");
412 fprintf(output, " format of text output (def: text)\n");
413 fprintf(output, " -j <protocolfilter> protocols layers filter if -T ek|pdml|json selected\n");
414 fprintf(output, " (e.g. \"ip ip.flags text\", filter does not expand child\n");
415 fprintf(output, " nodes, unless child is specified also in the filter)\n");
416 fprintf(output, " -J <protocolfilter> top level protocol filter if -T ek|pdml|json selected\n");
417 fprintf(output, " (e.g. \"http tcp\", filter which expands all child nodes)\n");
418 fprintf(output, " -e <field> field to print if -Tfields selected (e.g. tcp.port,\n");
419 fprintf(output, " _ws.col.Info)\n");
420 fprintf(output, " this option can be repeated to print multiple fields\n");
421 fprintf(output, " -E<fieldsoption>=<value> set options for output when -Tfields selected:\n");
422 fprintf(output, " bom=y|n print a UTF-8 BOM\n");
423 fprintf(output, " header=y|n switch headers on and off\n");
424 fprintf(output, " separator=/t|/s|<char> select tab, space, printable character as separator\n");
425 fprintf(output, " occurrence=f|l|a print first, last or all occurrences of each field\n");
426 fprintf(output, " aggregator=,|/s|<char> select comma, space, printable character as\n");
427 fprintf(output, " aggregator\n");
428 fprintf(output, " quote=d|s|n select double, single, no quotes for values\n");
429 fprintf(output, " -t a|ad|d|dd|e|r|u|ud|? output format of time stamps (def: r: rel. to first)\n");
430 fprintf(output, " -u s|hms output format of seconds (def: s: seconds)\n");
431 fprintf(output, " -l flush standard output after each packet\n");
432 fprintf(output, " -q be more quiet on stdout (e.g. when using statistics)\n");
433 fprintf(output, " -Q only log true errors to stderr (quieter than -q)\n");
434 fprintf(output, " -g enable group read access on the output file(s)\n");
435 fprintf(output, " -W n Save extra information in the file, if supported.\n");
436 fprintf(output, " n = write network address resolution information\n");
437 fprintf(output, " -X <key>:<value> eXtension options, see the man page for details\n");
438 fprintf(output, " -U tap_name PDUs export mode, see the man page for details\n");
439 fprintf(output, " -z <statistics> various statistics, see the man page for details\n");
440 fprintf(output, " --capture-comment <comment>\n");
441 fprintf(output, " add a capture comment to the newly created\n");
442 fprintf(output, " output file (only for pcapng)\n");
443 fprintf(output, " --export-objects <protocol>,<destdir> save exported objects for a protocol to\n");
444 fprintf(output, " a directory named \"destdir\"\n");
445 fprintf(output, " --color color output text similarly to the Wireshark GUI,\n");
446 fprintf(output, " requires a terminal with 24-bit color support\n");
448 fprintf(output, "\n");
449 fprintf(output, "Miscellaneous:\n");
450 fprintf(output, " -h display this help and exit\n");
451 fprintf(output, " -v display version info and exit\n");
452 fprintf(output, " -o <name>:<value> ... override preference setting\n");
453 fprintf(output, " -K <keytab> keytab file to use for kerberos decryption\n");
454 fprintf(output, " -G [report] dump one of several available reports and exit\n");
455 fprintf(output, " default report=\"fields\"\n");
456 fprintf(output, " use \"-G ?\" for more help\n");
458 fprintf(output, "\n");
459 fprintf(output, "WARNING: dumpcap will enable kernel BPF JIT compiler if available.\n");
460 fprintf(output, "You might want to reset it\n");
461 fprintf(output, "By doing \"echo 0 > /proc/sys/net/core/bpf_jit_enable\"\n");
462 fprintf(output, "\n");
468 glossary_option_help(void)
474 fprintf(output, "TShark (Wireshark) %s\n", get_ws_vcs_version_info());
476 fprintf(output, "\n");
477 fprintf(output, "Usage: tshark -G [report]\n");
478 fprintf(output, "\n");
479 fprintf(output, "Glossary table reports:\n");
480 fprintf(output, " -G column-formats dump column format codes and exit\n");
481 fprintf(output, " -G decodes dump \"layer type\"/\"decode as\" associations and exit\n");
482 fprintf(output, " -G dissector-tables dump dissector table names, types, and properties\n");
483 fprintf(output, " -G fieldcount dump count of header fields and exit\n");
484 fprintf(output, " -G fields dump fields glossary and exit\n");
485 fprintf(output, " -G ftypes dump field type basic and descriptive names\n");
486 fprintf(output, " -G heuristic-decodes dump heuristic dissector tables\n");
487 fprintf(output, " -G plugins dump installed plugins and exit\n");
488 fprintf(output, " -G protocols dump protocols in registration database and exit\n");
489 fprintf(output, " -G values dump value, range, true/false strings and exit\n");
490 fprintf(output, "\n");
491 fprintf(output, "Preference reports:\n");
492 fprintf(output, " -G currentprefs dump current preferences and exit\n");
493 fprintf(output, " -G defaultprefs dump default preferences and exit\n");
494 fprintf(output, " -G folders dump about:folders\n");
495 fprintf(output, "\n");
499 tshark_log_handler (const gchar *log_domain, GLogLevelFlags log_level,
500 const gchar *message, gpointer user_data)
502 /* ignore log message, if log_level isn't interesting based
503 upon the console log preferences.
504 If the preferences haven't been loaded loaded yet, display the
507 The default console_log_level preference value is such that only
508 ERROR, CRITICAL and WARNING level messages are processed;
509 MESSAGE, INFO and DEBUG level messages are ignored.
511 XXX: Aug 07, 2009: Prior tshark g_log code was hardwired to process only
512 ERROR and CRITICAL level messages so the current code is a behavioral
513 change. The current behavior is the same as in Wireshark.
515 if ((log_level & G_LOG_LEVEL_MASK & prefs.console_log_level) == 0 &&
516 prefs.console_log_level != 0) {
520 g_log_default_handler(log_domain, log_level, message, user_data);
525 print_current_user(void) {
526 gchar *cur_user, *cur_group;
528 if (started_with_special_privs()) {
529 cur_user = get_cur_username();
530 cur_group = get_cur_groupname();
531 fprintf(stderr, "Running as user \"%s\" and group \"%s\".",
532 cur_user, cur_group);
535 if (running_with_special_privs()) {
536 fprintf(stderr, " This could be dangerous.");
538 fprintf(stderr, "\n");
543 get_tshark_compiled_version_info(GString *str)
545 /* Capture libraries */
546 get_compiled_caplibs_version(str);
550 get_tshark_runtime_version_info(GString *str)
553 /* Capture libraries */
554 g_string_append(str, ", ");
555 get_runtime_caplibs_version(str);
558 /* stuff used by libwireshark */
559 epan_get_runtime_version_info(str);
565 const char *constpath;
567 #if defined(HAVE_LIBSMI) || defined(HAVE_GEOIP) || defined(HAVE_EXTCAP)
575 * Fetching the "File" dialogs folder not implemented.
576 * This is arguably just a pwd for a ui/cli .
580 printf("%-21s\t%s\n", "Temp:", g_get_tmp_dir());
583 path = get_persconffile_path("", FALSE);
584 printf("%-21s\t%s\n", "Personal configuration:", path);
588 constpath = get_datafile_dir();
589 if (constpath != NULL) {
590 printf("%-21s\t%s\n", "Global configuration:", constpath);
594 constpath = get_systemfile_dir();
595 printf("%-21s\t%s\n", "System:", constpath);
598 constpath = get_progfile_dir();
599 printf("%-21s\t%s\n", "Program:", constpath);
601 #if defined(HAVE_PLUGINS) || defined(HAVE_LUA)
603 path = get_plugins_pers_dir();
605 printf("%-21s\t%s\n", "Personal Plugins:", path);
610 printf("%-21s\t%s\n", "Global Plugins:", get_plugin_dir());
615 path = geoip_db_get_paths();
617 resultArray = g_strsplit(path, G_SEARCHPATH_SEPARATOR_S, 10);
619 for(i = 0; resultArray[i]; i++)
620 printf("%-21s\t%s\n", "GeoIP path:", g_strstrip(resultArray[i]));
622 g_strfreev(resultArray);
628 path = oid_get_default_mib_path();
629 resultArray = g_strsplit(path, G_SEARCHPATH_SEPARATOR_S, 10);
631 for(i = 0; resultArray[i]; i++)
632 printf("%-21s\t%s\n", "MIB/PIB path:", g_strstrip(resultArray[i]));
634 g_strfreev(resultArray);
640 constpath = get_extcap_dir();
642 resultArray = g_strsplit(constpath, G_SEARCHPATH_SEPARATOR_S, 10);
643 for(i = 0; resultArray[i]; i++)
644 printf("%-21s\t%s\n", "Extcap path:", g_strstrip(resultArray[i]));
646 g_strfreev(resultArray);
652 main(int argc, char *argv[])
654 GString *comp_info_str;
655 GString *runtime_info_str;
656 char *init_progfile_dir_error;
658 static const struct option long_options[] = {
659 {"help", no_argument, NULL, 'h'},
660 {"version", no_argument, NULL, 'v'},
661 LONGOPT_CAPTURE_COMMON
662 LONGOPT_DISSECT_COMMON
663 {"export-objects", required_argument, NULL, LONGOPT_EXPORT_OBJECTS},
664 {"color", no_argument, NULL, LONGOPT_COLOR},
667 gboolean arg_error = FALSE;
675 volatile gboolean success;
676 volatile int exit_status = EXIT_SUCCESS;
678 gboolean list_link_layer_types = FALSE;
679 gboolean start_capture = FALSE;
683 gboolean capture_option_specified = FALSE;
685 gboolean quiet = FALSE;
686 #ifdef PCAP_NG_DEFAULT
687 volatile int out_file_type = WTAP_FILE_TYPE_SUBTYPE_PCAPNG;
689 volatile int out_file_type = WTAP_FILE_TYPE_SUBTYPE_PCAP;
691 volatile gboolean out_file_name_res = FALSE;
692 volatile int in_file_type = WTAP_TYPE_AUTO;
693 gchar *volatile cf_name = NULL;
694 gchar *rfilter = NULL;
695 gchar *dfilter = NULL;
696 #ifdef HAVE_PCAP_OPEN_DEAD
697 struct bpf_program fcode;
699 dfilter_t *rfcode = NULL;
700 dfilter_t *dfcode = NULL;
704 gchar *output_only = NULL;
705 gchar *volatile pdu_export_arg = NULL;
706 const char *volatile exp_pdu_filename = NULL;
707 exp_pdu_t exp_pdu_tap_data;
710 * The leading + ensures that getopt_long() does not permute the argv[]
713 * We have to make sure that the first getopt_long() preserves the content
714 * of argv[] for the subsequent getopt_long() call.
716 * We use getopt_long() in both cases to ensure that we're using a routine
717 * whose permutation behavior we can control in the same fashion on all
718 * platforms, and so that, if we ever need to process a long argument before
719 * doing further initialization, we can do so.
721 * Glibc and Solaris libc document that a leading + disables permutation
722 * of options, regardless of whether POSIXLY_CORRECT is set or not; *BSD
723 * and macOS don't document it, but do so anyway.
725 * We do *not* use a leading - because the behavior of a leading - is
726 * platform-dependent.
728 #define OPTSTRING "+2" OPTSTRING_CAPTURE_COMMON OPTSTRING_DISSECT_COMMON "M:C:e:E:F:gG:hH:j:J:lo:O:PqQr:R:S:T:U:vVw:W:xX:Y:z:"
730 static const char optstring[] = OPTSTRING;
732 tshark_debug("tshark started with %d args", argc);
734 /* Set the C-language locale to the native environment. */
735 setlocale(LC_ALL, "");
737 cmdarg_err_init(failure_warning_message, failure_message_cont);
740 arg_list_utf_16to8(argc, argv);
741 create_app_running_mutex();
742 #if !GLIB_CHECK_VERSION(2,31,0)
748 * Get credential information for later use, and drop privileges
749 * before doing anything else.
750 * Let the user know if anything happened.
752 init_process_policies();
753 relinquish_special_privs_perm();
754 print_current_user();
757 * Attempt to get the pathname of the directory containing the
760 init_progfile_dir_error = init_progfile_dir(argv[0], main);
761 if (init_progfile_dir_error != NULL) {
763 "tshark: Can't get pathname of directory containing the tshark program: %s.\n"
764 "It won't be possible to capture traffic.\n"
765 "Report this to the Wireshark developers.",
766 init_progfile_dir_error);
767 g_free(init_progfile_dir_error);
770 initialize_funnel_ops();
773 ws_init_dll_search_path();
775 /* Load wpcap if possible. Do this before collecting the run-time version information */
778 /* Warn the user if npf.sys isn't loaded. */
779 if (!npf_sys_is_running() && get_windows_major_version() >= 6) {
780 fprintf(stderr, "The NPF driver isn't running. You may have trouble "
781 "capturing or\nlisting interfaces.\n");
783 #endif /* HAVE_LIBPCAP */
786 /* Get the compile-time version information string */
787 comp_info_str = get_compiled_version_info(get_tshark_compiled_version_info,
788 epan_get_compiled_version_info);
790 /* Get the run-time version information string */
791 runtime_info_str = get_runtime_version_info(get_tshark_runtime_version_info);
793 /* Add it to the information to be reported on a crash. */
794 ws_add_crash_info("TShark (Wireshark) %s\n"
799 get_ws_vcs_version_info(), comp_info_str->str, runtime_info_str->str);
800 g_string_free(comp_info_str, TRUE);
801 g_string_free(runtime_info_str, TRUE);
803 /* Fail sometimes. Useful for testing fuzz scripts. */
804 /* if (g_random_int_range(0, 100) < 5) abort(); */
807 * In order to have the -X opts assigned before the wslua machine starts
808 * we need to call getopt_long before epan_init() gets called.
810 * In order to handle, for example, -o options, we also need to call it
811 * *after* epan_init() gets called, so that the dissectors have had a
812 * chance to register their preferences.
814 * XXX - can we do this all with one getopt_long() call, saving the
815 * arguments we can't handle until after initializing libwireshark,
816 * and then process them after initializing libwireshark?
820 while ((opt = getopt_long(argc, argv, optstring, long_options, NULL)) != -1) {
822 case 'C': /* Configuration Profile */
823 if (profile_exists (optarg, FALSE)) {
824 set_profile_name (optarg);
826 cmdarg_err("Configuration Profile \"%s\" does not exist", optarg);
827 exit_status = INVALID_OPTION;
831 case 'P': /* Print packet summary info even when writing to a file */
832 print_packet_info = TRUE;
833 print_summary = TRUE;
835 case 'O': /* Only output these protocols */
836 output_only = g_strdup(optarg);
838 case 'V': /* Verbose */
839 print_details = TRUE;
840 print_packet_info = TRUE;
842 case 'x': /* Print packet data in hex (and ASCII) */
844 /* The user asked for hex output, so let's ensure they get it,
845 * even if they're writing to a file.
847 print_packet_info = TRUE;
858 * Print packet summary information is the default, unless either -V or -x
859 * were specified and -P was not. Note that this is new behavior, which
860 * allows for the possibility of printing only hex/ascii output without
861 * necessarily requiring that either the summary or details be printed too.
863 if (print_summary == -1)
864 print_summary = (print_details || print_hex) ? FALSE : TRUE;
866 /** Send All g_log messages to our own handler **/
870 G_LOG_LEVEL_CRITICAL|
875 G_LOG_FLAG_FATAL|G_LOG_FLAG_RECURSION;
877 g_log_set_handler(NULL,
878 (GLogLevelFlags)log_flags,
879 tshark_log_handler, NULL /* user_data */);
880 g_log_set_handler(LOG_DOMAIN_MAIN,
881 (GLogLevelFlags)log_flags,
882 tshark_log_handler, NULL /* user_data */);
885 g_log_set_handler(LOG_DOMAIN_CAPTURE,
886 (GLogLevelFlags)log_flags,
887 tshark_log_handler, NULL /* user_data */);
888 g_log_set_handler(LOG_DOMAIN_CAPTURE_CHILD,
889 (GLogLevelFlags)log_flags,
890 tshark_log_handler, NULL /* user_data */);
893 init_report_message(failure_warning_message, failure_warning_message,
894 open_failure_message, read_failure_message,
895 write_failure_message);
898 capture_opts_init(&global_capture_opts);
899 capture_session_init(&global_capture_session, &cfile);
902 timestamp_set_type(TS_RELATIVE);
903 timestamp_set_precision(TS_PREC_AUTO);
904 timestamp_set_seconds_type(TS_SECONDS_DEFAULT);
909 /* Register all the plugin types we have. */
910 epan_register_plugin_types(); /* Types known to libwireshark */
912 /* Scan for plugins. This does *not* call their registration routines;
913 that's done later. */
914 scan_plugins(REPORT_LOAD_FAILURE);
916 /* Register all libwiretap plugin modules. */
917 register_all_wiretap_modules();
920 /* Register all dissectors; we must do this before checking for the
921 "-G" flag, as the "-G" flag dumps information registered by the
922 dissectors, and we must do it before we read the preferences, in
923 case any dissectors register preferences. */
924 if (!epan_init(register_all_protocols, register_all_protocol_handoffs, NULL,
926 exit_status = INIT_FAILED;
930 /* Register all tap listeners; we do this before we parse the arguments,
931 as the "-z" argument can specify a registered tap. */
933 /* we register the plugin taps before the other taps because
934 stats_tree taps plugins will be registered as tap listeners
935 by stats_tree_stat.c and need to registered before that */
937 register_all_plugin_tap_listeners();
940 extcap_register_preferences();
942 register_all_tap_listeners();
943 conversation_table_set_gui_info(init_iousers);
944 hostlist_table_set_gui_info(init_hostlists);
945 srt_table_iterate_tables(register_srt_tables, NULL);
946 rtd_table_iterate_tables(register_rtd_tables, NULL);
947 new_stat_tap_iterate_tables(register_simple_stat_tables, NULL);
949 /* If invoked with the "-G" flag, we dump out information based on
950 the argument to the "-G" flag; if no argument is specified,
951 for backwards compatibility we dump out a glossary of display
954 XXX - we do this here, for now, to support "-G" with no arguments.
955 If none of our build or other processes uses "-G" with no arguments,
956 we can just process it with the other arguments. */
957 if (argc >= 2 && strcmp(argv[1], "-G") == 0) {
958 proto_initialize_all_prefixes();
961 proto_registrar_dump_fields();
963 if (strcmp(argv[2], "column-formats") == 0)
964 column_dump_column_formats();
965 else if (strcmp(argv[2], "currentprefs") == 0) {
966 epan_load_settings();
969 else if (strcmp(argv[2], "decodes") == 0)
970 dissector_dump_decodes();
971 else if (strcmp(argv[2], "defaultprefs") == 0)
973 else if (strcmp(argv[2], "dissector-tables") == 0)
974 dissector_dump_dissector_tables();
975 else if (strcmp(argv[2], "fieldcount") == 0) {
976 /* return value for the test suite */
977 exit_status = proto_registrar_dump_fieldcount();
979 } else if (strcmp(argv[2], "fields") == 0)
980 proto_registrar_dump_fields();
981 else if (strcmp(argv[2], "folders") == 0)
983 else if (strcmp(argv[2], "ftypes") == 0)
984 proto_registrar_dump_ftypes();
985 else if (strcmp(argv[2], "heuristic-decodes") == 0)
986 dissector_dump_heur_decodes();
987 else if (strcmp(argv[2], "plugins") == 0) {
992 wslua_plugins_dump_all();
995 else if (strcmp(argv[2], "protocols") == 0)
996 proto_registrar_dump_protocols();
997 else if (strcmp(argv[2], "values") == 0)
998 proto_registrar_dump_values();
999 else if (strcmp(argv[2], "?") == 0)
1000 glossary_option_help();
1001 else if (strcmp(argv[2], "-?") == 0)
1002 glossary_option_help();
1004 cmdarg_err("Invalid \"%s\" option for -G flag, enter -G ? for more help.", argv[2]);
1005 exit_status = INVALID_OPTION;
1009 exit_status = EXIT_SUCCESS;
1013 tshark_debug("tshark reading settings");
1015 /* Load libwireshark settings from the current profile. */
1016 prefs_p = epan_load_settings();
1018 read_filter_list(CFILTER_LIST);
1020 cap_file_init(&cfile);
1022 /* Print format defaults to this. */
1023 print_format = PR_FMT_TEXT;
1024 delimiter_char = " ";
1026 output_fields = output_fields_new();
1029 * To reset the options parser, set optreset to 1 on platforms that
1030 * have optreset (documented in *BSD and macOS, apparently present but
1031 * not documented in Solaris - the Illumos repository seems to
1032 * suggest that the first Solaris getopt_long(), at least as of 2004,
1033 * was based on the NetBSD one, it had optreset) and set optind to 1,
1034 * and set optind to 0 otherwise (documented as working in the GNU
1035 * getopt_long(). Setting optind to 0 didn't originally work in the
1036 * NetBSD one, but that was added later - we don't want to depend on
1037 * it if we have optreset).
1039 * Also reset opterr to 1, so that error messages are printed by
1042 #ifdef HAVE_OPTRESET
1050 /* Now get our args */
1051 while ((opt = getopt_long(argc, argv, optstring, long_options, NULL)) != -1) {
1053 case '2': /* Perform two pass analysis */
1054 if(epan_auto_reset){
1055 cmdarg_err("-2 does not support auto session reset.");
1058 perform_two_pass_analysis = TRUE;
1061 if(perform_two_pass_analysis){
1062 cmdarg_err("-M does not support two pass analysis.");
1065 epan_auto_reset_count = get_positive_int(optarg, "epan reset count");
1066 epan_auto_reset = TRUE;
1068 case 'a': /* autostop criteria */
1069 case 'b': /* Ringbuffer option */
1070 case 'c': /* Capture x packets */
1071 case 'f': /* capture filter */
1072 case 'g': /* enable group read access on file(s) */
1073 case 'i': /* Use interface x */
1074 case 'p': /* Don't capture in promiscuous mode */
1075 #ifdef HAVE_PCAP_REMOTE
1076 case 'A': /* Authentication */
1078 #ifdef HAVE_PCAP_CREATE
1079 case 'I': /* Capture in monitor mode, if available */
1081 case 's': /* Set the snapshot (capture) length */
1082 case 'w': /* Write to capture file x */
1083 case 'y': /* Set the pcap data link type */
1084 case LONGOPT_NUM_CAP_COMMENT: /* add a capture comment */
1085 #ifdef CAN_SET_CAPTURE_BUFFER_SIZE
1086 case 'B': /* Buffer size */
1089 exit_status = capture_opts_add_opt(&global_capture_opts, opt, optarg, &start_capture);
1090 if (exit_status != 0) {
1096 * Output file name, if we're reading a file and writing to another
1099 output_file_name = optarg;
1101 capture_option_specified = TRUE;
1107 /* already processed; just ignore it now */
1109 case 'D': /* Print a list of capture devices and exit */
1111 if_list = capture_interface_list(&err, &err_str,NULL);
1112 if (if_list == NULL) {
1114 cmdarg_err("There are no interfaces on which a capture can be done");
1116 cmdarg_err("%s", err_str);
1119 exit_status = INVALID_INTERFACE;
1122 capture_opts_print_interfaces(if_list);
1123 free_interface_list(if_list);
1124 exit_status = EXIT_SUCCESS;
1127 capture_option_specified = TRUE;
1133 output_fields_add(output_fields, optarg);
1137 if (!output_fields_set_option(output_fields, optarg)) {
1138 cmdarg_err("\"%s\" is not a valid field output option=value pair.", optarg);
1139 output_fields_list_options(stderr);
1140 exit_status = INVALID_OPTION;
1145 out_file_type = wtap_short_string_to_file_type_subtype(optarg);
1146 if (out_file_type < 0) {
1147 cmdarg_err("\"%s\" isn't a valid capture file type", optarg);
1148 list_capture_types();
1149 exit_status = INVALID_OPTION;
1154 protocolfilter = wmem_strsplit(wmem_epan_scope(), optarg, " ", -1);
1157 protocolfilter_flags = PF_INCLUDE_CHILDREN;
1158 protocolfilter = wmem_strsplit(wmem_epan_scope(), optarg, " ", -1);
1160 case 'W': /* Select extra information to save in our capture file */
1161 /* This is patterned after the -N flag which may not be the best idea. */
1162 if (strchr(optarg, 'n')) {
1163 out_file_name_res = TRUE;
1165 cmdarg_err("Invalid -W argument \"%s\"; it must be one of:", optarg);
1166 cmdarg_err_cont("\t'n' write network address resolution information (pcapng only)");
1167 exit_status = INVALID_OPTION;
1171 case 'H': /* Read address to name mappings from a hosts file */
1172 if (! add_hosts_file(optarg))
1174 cmdarg_err("Can't read host entries from \"%s\"", optarg);
1175 exit_status = INVALID_OPTION;
1178 out_file_name_res = TRUE;
1181 case 'h': /* Print help and exit */
1182 printf("TShark (Wireshark) %s\n"
1183 "Dump and analyze network traffic.\n"
1184 "See https://www.wireshark.org for more information.\n",
1185 get_ws_vcs_version_info());
1186 print_usage(stdout);
1187 exit_status = EXIT_SUCCESS;
1190 case 'l': /* "Line-buffer" standard output */
1191 /* The ANSI C standard does not appear to *require* that a line-buffered
1192 stream be flushed to the host environment whenever a newline is
1193 written, it just says that, on such a stream, characters "are
1194 intended to be transmitted to or from the host environment as a
1195 block when a new-line character is encountered".
1197 The Visual C++ 6.0 C implementation doesn't do what is intended;
1198 even if you set a stream to be line-buffered, it still doesn't
1199 flush the buffer at the end of every line.
1201 The whole reason for the "-l" flag in either tcpdump or TShark
1202 is to allow the output of a live capture to be piped to a program
1203 or script and to have that script see the information for the
1204 packet as soon as it's printed, rather than having to wait until
1205 a standard I/O buffer fills up.
1207 So, if the "-l" flag is specified, we flush the standard output
1208 at the end of a packet. This will do the right thing if we're
1209 printing packet summary lines, and, as we print the entire protocol
1210 tree for a single packet without waiting for anything to happen,
1211 it should be as good as line-buffered mode if we're printing
1212 protocol trees - arguably even better, as it may do fewer
1214 line_buffered = TRUE;
1216 case 'L': /* Print list of link-layer types and exit */
1218 list_link_layer_types = TRUE;
1220 capture_option_specified = TRUE;
1224 case 'o': /* Override preference from command line */
1226 char *errmsg = NULL;
1228 switch (prefs_set_pref(optarg, &errmsg)) {
1233 case PREFS_SET_SYNTAX_ERR:
1234 cmdarg_err("Invalid -o flag \"%s\"%s%s", optarg,
1235 errmsg ? ": " : "", errmsg ? errmsg : "");
1237 exit_status = INVALID_OPTION;
1241 case PREFS_SET_NO_SUCH_PREF:
1242 case PREFS_SET_OBSOLETE:
1243 cmdarg_err("-o flag \"%s\" specifies unknown preference", optarg);
1244 exit_status = INVALID_OPTION;
1250 case 'q': /* Quiet */
1253 case 'Q': /* Really quiet */
1255 really_quiet = TRUE;
1257 case 'r': /* Read capture file x */
1258 cf_name = g_strdup(optarg);
1260 case 'R': /* Read file filter */
1264 /* already processed; just ignore it now */
1266 case 'S': /* Set the line Separator to be printed between packets */
1269 case 'T': /* printing Type */
1270 print_packet_info = TRUE;
1271 if (strcmp(optarg, "text") == 0) {
1272 output_action = WRITE_TEXT;
1273 print_format = PR_FMT_TEXT;
1274 } else if (strcmp(optarg, "tabs") == 0) {
1275 output_action = WRITE_TEXT;
1276 print_format = PR_FMT_TEXT;
1277 delimiter_char = "\t";
1278 } else if (strcmp(optarg, "ps") == 0) {
1279 output_action = WRITE_TEXT;
1280 print_format = PR_FMT_PS;
1281 } else if (strcmp(optarg, "pdml") == 0) {
1282 output_action = WRITE_XML;
1283 print_details = TRUE; /* Need details */
1284 print_summary = FALSE; /* Don't allow summary */
1285 } else if (strcmp(optarg, "psml") == 0) {
1286 output_action = WRITE_XML;
1287 print_details = FALSE; /* Don't allow details */
1288 print_summary = TRUE; /* Need summary */
1289 } else if (strcmp(optarg, "fields") == 0) {
1290 output_action = WRITE_FIELDS;
1291 print_details = TRUE; /* Need full tree info */
1292 print_summary = FALSE; /* Don't allow summary */
1293 } else if (strcmp(optarg, "json") == 0) {
1294 output_action = WRITE_JSON;
1295 print_details = TRUE; /* Need details */
1296 print_summary = FALSE; /* Don't allow summary */
1297 } else if (strcmp(optarg, "ek") == 0) {
1298 output_action = WRITE_EK;
1299 print_details = TRUE; /* Need details */
1300 print_summary = FALSE; /* Don't allow summary */
1301 } else if (strcmp(optarg, "jsonraw") == 0) {
1302 output_action = WRITE_JSON_RAW;
1303 print_details = TRUE; /* Need details */
1304 print_summary = FALSE; /* Don't allow summary */
1307 cmdarg_err("Invalid -T parameter \"%s\"; it must be one of:", optarg); /* x */
1308 cmdarg_err_cont("\t\"fields\" The values of fields specified with the -e option, in a form\n"
1309 "\t specified by the -E option.\n"
1310 "\t\"pdml\" Packet Details Markup Language, an XML-based format for the\n"
1311 "\t details of a decoded packet. This information is equivalent to\n"
1312 "\t the packet details printed with the -V flag.\n"
1313 "\t\"ps\" PostScript for a human-readable one-line summary of each of\n"
1314 "\t the packets, or a multi-line view of the details of each of\n"
1315 "\t the packets, depending on whether the -V flag was specified.\n"
1316 "\t\"psml\" Packet Summary Markup Language, an XML-based format for the\n"
1317 "\t summary information of a decoded packet. This information is\n"
1318 "\t equivalent to the information shown in the one-line summary\n"
1319 "\t printed by default.\n"
1320 "\t\"json\" Packet Summary, an JSON-based format for the details\n"
1321 "\t summary information of a decoded packet. This information is \n"
1322 "\t equivalent to the packet details printed with the -V flag.\n"
1323 "\t\"jsonraw\" Packet Details, a JSON-based format for machine parsing\n"
1324 "\t including only raw hex decoded fields (same as -T json -x but\n"
1325 "\t without text decoding, only raw fields included). \n"
1326 "\t\"ek\" Packet Details, an EK JSON-based format for the bulk insert \n"
1327 "\t into elastic search cluster. This information is \n"
1328 "\t equivalent to the packet details printed with the -V flag.\n"
1329 "\t\"text\" Text of a human-readable one-line summary of each of the\n"
1330 "\t packets, or a multi-line view of the details of each of the\n"
1331 "\t packets, depending on whether the -V flag was specified.\n"
1332 "\t This is the default.\n"
1333 "\t\"tabs\" Similar to the text report except that each column of the\n"
1334 "\t human-readable one-line summary is delimited with an ASCII\n"
1335 "\t horizontal tab character.");
1336 exit_status = INVALID_OPTION;
1340 case 'U': /* Export PDUs to file */
1342 GSList *export_pdu_tap_name_list = NULL;
1345 cmdarg_err("A tap name is required. Valid names are:");
1346 for (export_pdu_tap_name_list = get_export_pdu_tap_list(); export_pdu_tap_name_list; export_pdu_tap_name_list = g_slist_next(export_pdu_tap_name_list)) {
1347 cmdarg_err("%s\n", (const char*)(export_pdu_tap_name_list->data));
1349 exit_status = INVALID_OPTION;
1352 pdu_export_arg = g_strdup(optarg);
1355 case 'v': /* Show version and exit */
1356 comp_info_str = get_compiled_version_info(get_tshark_compiled_version_info,
1357 epan_get_compiled_version_info);
1358 runtime_info_str = get_runtime_version_info(get_tshark_runtime_version_info);
1359 show_version("TShark (Wireshark)", comp_info_str, runtime_info_str);
1360 g_string_free(comp_info_str, TRUE);
1361 g_string_free(runtime_info_str, TRUE);
1362 /* We don't really have to cleanup here, but it's a convenient way to test
1363 * start-up and shut-down of the epan library without any UI-specific
1364 * cruft getting in the way. Makes the results of running
1365 * $ ./tools/valgrind-wireshark -n
1366 * much more useful. */
1371 exit_status = EXIT_SUCCESS;
1373 case 'O': /* Only output these protocols */
1374 /* already processed; just ignore it now */
1376 case 'V': /* Verbose */
1377 /* already processed; just ignore it now */
1379 case 'x': /* Print packet data in hex (and ASCII) */
1380 /* already processed; just ignore it now */
1383 /* already processed; just ignore it now */
1389 /* We won't call the init function for the stat this soon
1390 as it would disallow MATE's fields (which are registered
1391 by the preferences set callback) from being used as
1392 part of a tap filter. Instead, we just add the argument
1393 to a list of stat arguments. */
1394 if (strcmp("help", optarg) == 0) {
1395 fprintf(stderr, "tshark: The available statistics for the \"-z\" option are:\n");
1396 list_stat_cmd_args();
1397 exit_status = EXIT_SUCCESS;
1400 if (!process_stat_cmd_arg(optarg)) {
1401 cmdarg_err("Invalid -z argument \"%s\"; it must be one of:", optarg);
1402 list_stat_cmd_args();
1403 exit_status = INVALID_OPTION;
1407 case 'd': /* Decode as rule */
1408 case 'K': /* Kerberos keytab file */
1409 case 'n': /* No name resolution */
1410 case 'N': /* Select what types of addresses/port #s to resolve */
1411 case 't': /* Time stamp type */
1412 case 'u': /* Seconds type */
1413 case LONGOPT_DISABLE_PROTOCOL: /* disable dissection of protocol */
1414 case LONGOPT_ENABLE_HEURISTIC: /* enable heuristic dissection of protocol */
1415 case LONGOPT_DISABLE_HEURISTIC: /* disable heuristic dissection of protocol */
1416 case LONGOPT_ENABLE_PROTOCOL: /* enable dissection of protocol (that is disabled by default) */
1417 if (!dissect_opts_handle_opt(opt, optarg)) {
1418 exit_status = INVALID_OPTION;
1422 case LONGOPT_EXPORT_OBJECTS: /* --export-objects */
1423 if (strcmp("help", optarg) == 0) {
1424 fprintf(stderr, "tshark: The available export object types for the \"--export-objects\" option are:\n");
1425 eo_list_object_types();
1426 exit_status = EXIT_SUCCESS;
1429 if (!eo_tap_opt_add(optarg)) {
1430 exit_status = INVALID_OPTION;
1434 case LONGOPT_COLOR: /* print in color where appropriate */
1435 dissect_color = TRUE;
1438 case '?': /* Bad flag - print usage message */
1441 list_capture_types();
1444 print_usage(stderr);
1446 exit_status = INVALID_OPTION;
1452 /* If we specified output fields, but not the output field type... */
1453 if ((WRITE_FIELDS != output_action && WRITE_XML != output_action && WRITE_JSON != output_action && WRITE_EK != output_action) && 0 != output_fields_num_fields(output_fields)) {
1454 cmdarg_err("Output fields were specified with \"-e\", "
1455 "but \"-Tek, -Tfields, -Tjson or -Tpdml\" was not specified.");
1456 exit_status = INVALID_OPTION;
1458 } else if (WRITE_FIELDS == output_action && 0 == output_fields_num_fields(output_fields)) {
1459 cmdarg_err("\"-Tfields\" was specified, but no fields were "
1460 "specified with \"-e\".");
1462 exit_status = INVALID_OPTION;
1466 if (dissect_color) {
1467 if (!color_filters_init(&err_msg, NULL)) {
1468 fprintf(stderr, "%s\n", err_msg);
1473 /* If no capture filter or display filter has been specified, and there are
1474 still command-line arguments, treat them as the tokens of a capture
1475 filter (if no "-r" flag was specified) or a display filter (if a "-r"
1476 flag was specified. */
1477 if (optind < argc) {
1478 if (cf_name != NULL) {
1479 if (dfilter != NULL) {
1480 cmdarg_err("Display filters were specified both with \"-d\" "
1481 "and with additional command-line arguments.");
1482 exit_status = INVALID_OPTION;
1485 dfilter = get_args_as_string(argc, argv, optind);
1490 if (global_capture_opts.default_options.cfilter) {
1491 cmdarg_err("A default capture filter was specified both with \"-f\""
1492 " and with additional command-line arguments.");
1493 exit_status = INVALID_OPTION;
1496 for (i = 0; i < global_capture_opts.ifaces->len; i++) {
1497 interface_options interface_opts;
1498 interface_opts = g_array_index(global_capture_opts.ifaces, interface_options, i);
1499 if (interface_opts.cfilter == NULL) {
1500 interface_opts.cfilter = get_args_as_string(argc, argv, optind);
1501 global_capture_opts.ifaces = g_array_remove_index(global_capture_opts.ifaces, i);
1502 g_array_insert_val(global_capture_opts.ifaces, i, interface_opts);
1504 cmdarg_err("A capture filter was specified both with \"-f\""
1505 " and with additional command-line arguments.");
1506 exit_status = INVALID_OPTION;
1510 global_capture_opts.default_options.cfilter = get_args_as_string(argc, argv, optind);
1512 capture_option_specified = TRUE;
1518 if (!global_capture_opts.saving_to_file) {
1519 /* We're not saving the capture to a file; if "-q" wasn't specified,
1520 we should print packet information */
1522 print_packet_info = TRUE;
1524 /* We're saving to a file; if we're writing to the standard output.
1525 and we'll also be writing dissected packets to the standard
1526 output, reject the request. At best, we could redirect that
1527 to the standard error; we *can't* write both to the standard
1528 output and have either of them be useful. */
1529 if (strcmp(global_capture_opts.save_file, "-") == 0 && print_packet_info) {
1530 cmdarg_err("You can't write both raw packet data and dissected packets"
1531 " to the standard output.");
1532 exit_status = INVALID_OPTION;
1537 /* We're not saving the capture to a file; if "-q" wasn't specified,
1538 we should print packet information */
1540 print_packet_info = TRUE;
1543 #ifndef HAVE_LIBPCAP
1544 if (capture_option_specified)
1545 cmdarg_err("This version of TShark was not built with support for capturing packets.");
1548 print_usage(stderr);
1549 exit_status = INVALID_OPTION;
1554 if (output_action != WRITE_TEXT && output_action != WRITE_JSON && output_action != WRITE_JSON_RAW && output_action != WRITE_EK) {
1555 cmdarg_err("Raw packet hex data can only be printed as text, PostScript, JSON, JSONRAW or EK JSON");
1556 exit_status = INVALID_OPTION;
1561 if (output_only != NULL) {
1564 if (!print_details) {
1565 cmdarg_err("-O requires -V");
1566 exit_status = INVALID_OPTION;
1570 output_only_tables = g_hash_table_new (g_str_hash, g_str_equal);
1571 for (ps = strtok (output_only, ","); ps; ps = strtok (NULL, ",")) {
1572 g_hash_table_insert(output_only_tables, (gpointer)ps, (gpointer)ps);
1576 if (rfilter != NULL && !perform_two_pass_analysis) {
1577 cmdarg_err("-R without -2 is deprecated. For single-pass filtering use -Y.");
1578 exit_status = INVALID_OPTION;
1583 if (list_link_layer_types) {
1584 /* We're supposed to list the link-layer types for an interface;
1585 did the user also specify a capture file to be read? */
1587 /* Yes - that's bogus. */
1588 cmdarg_err("You can't specify -L and a capture file to be read.");
1589 exit_status = INVALID_OPTION;
1592 /* No - did they specify a ring buffer option? */
1593 if (global_capture_opts.multi_files_on) {
1594 cmdarg_err("Ring buffer requested, but a capture isn't being done.");
1595 exit_status = INVALID_OPTION;
1601 * "-r" was specified, so we're reading a capture file.
1602 * Capture options don't apply here.
1605 /* We don't support capture filters when reading from a capture file
1606 (the BPF compiler doesn't support all link-layer types that we
1607 support in capture files we read). */
1608 if (global_capture_opts.default_options.cfilter) {
1609 cmdarg_err("Only read filters, not capture filters, "
1610 "can be specified when reading a capture file.");
1611 exit_status = INVALID_OPTION;
1614 if (global_capture_opts.multi_files_on) {
1615 cmdarg_err("Multiple capture files requested, but "
1616 "a capture isn't being done.");
1617 exit_status = INVALID_OPTION;
1620 if (global_capture_opts.has_file_duration) {
1621 cmdarg_err("Switching capture files after a time interval was specified, but "
1622 "a capture isn't being done.");
1623 exit_status = INVALID_OPTION;
1626 if (global_capture_opts.has_ring_num_files) {
1627 cmdarg_err("A ring buffer of capture files was specified, but "
1628 "a capture isn't being done.");
1629 exit_status = INVALID_OPTION;
1632 if (global_capture_opts.has_autostop_files) {
1633 cmdarg_err("A maximum number of capture files was specified, but "
1634 "a capture isn't being done.");
1635 exit_status = INVALID_OPTION;
1638 if (global_capture_opts.capture_comment) {
1639 cmdarg_err("A capture comment was specified, but "
1640 "a capture isn't being done.\nThere's no support for adding "
1641 "a capture comment to an existing capture file.");
1642 exit_status = INVALID_OPTION;
1646 /* Note: TShark now allows the restriction of a _read_ file by packet count
1647 * and byte count as well as a write file. Other autostop options remain valid
1648 * only for a write file.
1650 if (global_capture_opts.has_autostop_duration) {
1651 cmdarg_err("A maximum capture time was specified, but "
1652 "a capture isn't being done.");
1653 exit_status = INVALID_OPTION;
1658 * "-r" wasn't specified, so we're doing a live capture.
1660 if (perform_two_pass_analysis) {
1661 /* Two-pass analysis doesn't work with live capture since it requires us
1662 * to buffer packets until we've read all of them, but a live capture
1663 * has no useful/meaningful definition of "all" */
1664 cmdarg_err("Live captures do not support two-pass analysis.");
1665 exit_status = INVALID_OPTION;
1669 if (global_capture_opts.saving_to_file) {
1670 /* They specified a "-w" flag, so we'll be saving to a capture file. */
1672 /* When capturing, we only support writing pcap or pcap-ng format. */
1673 if (out_file_type != WTAP_FILE_TYPE_SUBTYPE_PCAP &&
1674 out_file_type != WTAP_FILE_TYPE_SUBTYPE_PCAPNG) {
1675 cmdarg_err("Live captures can only be saved in pcap or pcapng format.");
1676 exit_status = INVALID_OPTION;
1679 if (global_capture_opts.capture_comment &&
1680 out_file_type != WTAP_FILE_TYPE_SUBTYPE_PCAPNG) {
1681 cmdarg_err("A capture comment can only be written to a pcapng file.");
1682 exit_status = INVALID_OPTION;
1685 if (global_capture_opts.multi_files_on) {
1686 /* Multiple-file mode doesn't work under certain conditions:
1687 a) it doesn't work if you're writing to the standard output;
1688 b) it doesn't work if you're writing to a pipe;
1690 if (strcmp(global_capture_opts.save_file, "-") == 0) {
1691 cmdarg_err("Multiple capture files requested, but "
1692 "the capture is being written to the standard output.");
1693 exit_status = INVALID_OPTION;
1696 if (global_capture_opts.output_to_pipe) {
1697 cmdarg_err("Multiple capture files requested, but "
1698 "the capture file is a pipe.");
1699 exit_status = INVALID_OPTION;
1702 if (!global_capture_opts.has_autostop_filesize &&
1703 !global_capture_opts.has_file_duration) {
1704 cmdarg_err("Multiple capture files requested, but "
1705 "no maximum capture file size or duration was specified.");
1706 exit_status = INVALID_OPTION;
1710 /* Currently, we don't support read or display filters when capturing
1711 and saving the packets. */
1712 if (rfilter != NULL) {
1713 cmdarg_err("Read filters aren't supported when capturing and saving the captured packets.");
1714 exit_status = INVALID_OPTION;
1717 if (dfilter != NULL) {
1718 cmdarg_err("Display filters aren't supported when capturing and saving the captured packets.");
1719 exit_status = INVALID_OPTION;
1722 global_capture_opts.use_pcapng = (out_file_type == WTAP_FILE_TYPE_SUBTYPE_PCAPNG) ? TRUE : FALSE;
1724 /* They didn't specify a "-w" flag, so we won't be saving to a
1725 capture file. Check for options that only make sense if
1726 we're saving to a file. */
1727 if (global_capture_opts.has_autostop_filesize) {
1728 cmdarg_err("Maximum capture file size specified, but "
1729 "capture isn't being saved to a file.");
1730 exit_status = INVALID_OPTION;
1733 if (global_capture_opts.multi_files_on) {
1734 cmdarg_err("Multiple capture files requested, but "
1735 "the capture isn't being saved to a file.");
1736 exit_status = INVALID_OPTION;
1739 if (global_capture_opts.capture_comment) {
1740 cmdarg_err("A capture comment was specified, but "
1741 "the capture isn't being saved to a file.");
1742 exit_status = INVALID_OPTION;
1751 /* Start windows sockets */
1752 result = WSAStartup( MAKEWORD( 1, 1 ), &wsaData );
1755 exit_status = INIT_FAILED;
1760 /* Notify all registered modules that have had any of their preferences
1761 changed either from one of the preferences file or from the command
1762 line that their preferences have changed. */
1765 /* At this point MATE will have registered its field array so we can
1766 have a tap filter with one of MATE's late-registered fields as part
1767 of the filter. We can now process all the "-z" arguments. */
1768 start_requested_stats();
1770 /* We can also enable specified taps for export object */
1771 start_exportobjects();
1773 /* At this point MATE will have registered its field array so we can
1774 check if the fields specified by the user are all good.
1778 GSList *invalid_fields = output_fields_valid(output_fields);
1779 if (invalid_fields != NULL) {
1781 cmdarg_err("Some fields aren't valid:");
1782 for (it=invalid_fields; it != NULL; it = g_slist_next(it)) {
1783 cmdarg_err_cont("\t%s", (gchar *)it->data);
1785 g_slist_free(invalid_fields);
1786 exit_status = INVALID_OPTION;
1791 /* We currently don't support taps, or printing dissected packets,
1792 if we're writing to a pipe. */
1793 if (global_capture_opts.saving_to_file &&
1794 global_capture_opts.output_to_pipe) {
1795 if (tap_listeners_require_dissection()) {
1796 cmdarg_err("Taps aren't supported when saving to a pipe.");
1797 exit_status = INVALID_OPTION;
1800 if (print_packet_info) {
1801 cmdarg_err("Printing dissected packets isn't supported when saving to a pipe.");
1802 exit_status = INVALID_OPTION;
1808 if (ex_opt_count("read_format") > 0) {
1809 const gchar* name = ex_opt_get_next("read_format");
1810 in_file_type = open_info_name_to_type(name);
1811 if (in_file_type == WTAP_TYPE_AUTO) {
1812 cmdarg_err("\"%s\" isn't a valid read file format type", name? name : "");
1813 list_read_capture_types();
1814 exit_status = INVALID_OPTION;
1819 timestamp_set_type(global_dissect_options.time_format);
1822 * Enabled and disabled protocols and heuristic dissectors as per
1823 * command-line options.
1825 if (!setup_enabled_and_disabled_protocols()) {
1826 exit_status = INVALID_OPTION;
1830 /* Build the column format array */
1831 build_column_format_array(&cfile.cinfo, prefs_p->num_cols, TRUE);
1834 capture_opts_trim_snaplen(&global_capture_opts, MIN_PACKET_SIZE);
1835 capture_opts_trim_ring_num_files(&global_capture_opts);
1838 if (rfilter != NULL) {
1839 tshark_debug("Compiling read filter: '%s'", rfilter);
1840 if (!dfilter_compile(rfilter, &rfcode, &err_msg)) {
1841 cmdarg_err("%s", err_msg);
1847 #ifdef HAVE_PCAP_OPEN_DEAD
1851 pc = pcap_open_dead(DLT_EN10MB, MIN_PACKET_SIZE);
1853 if (pcap_compile(pc, &fcode, rfilter, 0, 0) != -1) {
1855 " Note: That read filter code looks like a valid capture filter;\n"
1856 " maybe you mixed them up?");
1862 exit_status = INVALID_INTERFACE;
1866 cfile.rfcode = rfcode;
1868 if (dfilter != NULL) {
1869 tshark_debug("Compiling display filter: '%s'", dfilter);
1870 if (!dfilter_compile(dfilter, &dfcode, &err_msg)) {
1871 cmdarg_err("%s", err_msg);
1877 #ifdef HAVE_PCAP_OPEN_DEAD
1881 pc = pcap_open_dead(DLT_EN10MB, MIN_PACKET_SIZE);
1883 if (pcap_compile(pc, &fcode, dfilter, 0, 0) != -1) {
1885 " Note: That display filter code looks like a valid capture filter;\n"
1886 " maybe you mixed them up?");
1892 exit_status = INVALID_FILTER;
1896 cfile.dfcode = dfcode;
1898 if (print_packet_info) {
1899 /* If we're printing as text or PostScript, we have
1900 to create a print stream. */
1901 if (output_action == WRITE_TEXT) {
1902 switch (print_format) {
1905 print_stream = print_stream_text_stdio_new(stdout);
1909 print_stream = print_stream_ps_stdio_new(stdout);
1913 g_assert_not_reached();
1918 /* PDU export requested. Take the ownership of the '-w' file, apply tap
1919 * filters and start tapping. */
1920 if (pdu_export_arg) {
1921 const char *exp_pdu_tap_name = pdu_export_arg;
1922 const char *exp_pdu_filter = dfilter; /* may be NULL to disable filter */
1923 char *exp_pdu_error;
1928 cmdarg_err("PDUs export requires a capture file (specify with -r).");
1929 exit_status = INVALID_OPTION;
1932 /* Take ownership of the '-w' output file. */
1934 exp_pdu_filename = global_capture_opts.save_file;
1935 global_capture_opts.save_file = NULL;
1937 exp_pdu_filename = output_file_name;
1938 output_file_name = NULL;
1940 if (exp_pdu_filename == NULL) {
1941 cmdarg_err("PDUs export requires an output file (-w).");
1942 exit_status = INVALID_OPTION;
1946 exp_pdu_error = exp_pdu_pre_open(exp_pdu_tap_name, exp_pdu_filter,
1948 if (exp_pdu_error) {
1949 cmdarg_err("Cannot register tap: %s", exp_pdu_error);
1950 g_free(exp_pdu_error);
1951 exit_status = INVALID_TAP;
1955 exp_fd = ws_open(exp_pdu_filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0644);
1957 cmdarg_err("%s: %s", exp_pdu_filename, file_open_error_message(errno, TRUE));
1958 exit_status = INVALID_FILE;
1962 /* Activate the export PDU tap */
1963 comment = g_strdup_printf("Dump of PDUs from %s", cf_name);
1964 err = exp_pdu_open(&exp_pdu_tap_data, exp_fd, comment);
1966 cfile_dump_open_failure_message("TShark", exp_pdu_filename, err,
1967 WTAP_FILE_TYPE_SUBTYPE_PCAPNG);
1969 exit_status = INVALID_EXPORT;
1974 /* We have to dissect each packet if:
1976 we're printing information about each packet;
1978 we're using a read filter on the packets;
1980 we're using a display filter on the packets;
1982 we're exporting PDUs;
1984 we're using any taps that need dissection. */
1985 do_dissection = print_packet_info || rfcode || dfcode || pdu_export_arg ||
1986 tap_listeners_require_dissection() || dissect_color;
1987 tshark_debug("tshark: do_dissection = %s", do_dissection ? "TRUE" : "FALSE");
1990 tshark_debug("tshark: Opening capture file: %s", cf_name);
1992 * We're reading a capture file.
1994 if (cf_open(&cfile, cf_name, in_file_type, FALSE, &err) != CF_OK) {
1999 exit_status = INVALID_FILE;
2003 /* Process the packets in the file */
2004 tshark_debug("tshark: invoking process_cap_file() to process the packets");
2007 success = process_cap_file(&cfile, global_capture_opts.save_file, out_file_type, out_file_name_res,
2008 global_capture_opts.has_autostop_packets ? global_capture_opts.autostop_packets : 0,
2009 global_capture_opts.has_autostop_filesize ? global_capture_opts.autostop_filesize : 0);
2011 success = process_cap_file(&cfile, output_file_name, out_file_type, out_file_name_res, 0, 0);
2014 CATCH(OutOfMemoryError) {
2018 "Sorry, but TShark has to terminate now.\n"
2020 "More information and workarounds can be found at\n"
2021 "https://wiki.wireshark.org/KnownBugs/OutOfMemory\n");
2027 /* We still dump out the results of taps, etc., as we might have
2028 read some packets; however, we exit with an error status. */
2032 if (pdu_export_arg) {
2033 err = exp_pdu_close(&exp_pdu_tap_data);
2035 cfile_close_failure_message(exp_pdu_filename, err);
2038 g_free(pdu_export_arg);
2041 tshark_debug("tshark: no capture file specified");
2042 /* No capture file specified, so we're supposed to do a live capture
2043 or get a list of link-layer types for a live capture device;
2044 do we have support for live captures? */
2046 /* if no interface was specified, pick a default */
2047 exit_status = capture_opts_default_iface_if_necessary(&global_capture_opts,
2048 ((prefs_p->capture_device) && (*prefs_p->capture_device != '\0')) ? get_if_name(prefs_p->capture_device) : NULL);
2049 if (exit_status != 0) {
2053 /* if requested, list the link layer types and exit */
2054 if (list_link_layer_types) {
2057 /* Get the list of link-layer types for the capture devices. */
2058 for (i = 0; i < global_capture_opts.ifaces->len; i++) {
2059 interface_options interface_opts;
2060 if_capabilities_t *caps;
2061 char *auth_str = NULL;
2063 interface_opts = g_array_index(global_capture_opts.ifaces, interface_options, i);
2064 #ifdef HAVE_PCAP_REMOTE
2065 if (interface_opts.auth_type == CAPTURE_AUTH_PWD) {
2066 auth_str = g_strdup_printf("%s:%s", interface_opts.auth_username, interface_opts.auth_password);
2069 caps = capture_get_if_capabilities(interface_opts.name, interface_opts.monitor_mode, auth_str, &err_str, NULL);
2072 cmdarg_err("%s", err_str);
2074 exit_status = INVALID_CAPABILITY;
2077 if (caps->data_link_types == NULL) {
2078 cmdarg_err("The capture device \"%s\" has no data link types.", interface_opts.name);
2079 exit_status = INVALID_DATA_LINK;
2082 capture_opts_print_if_capabilities(caps, interface_opts.name, interface_opts.monitor_mode);
2083 free_if_capabilities(caps);
2085 exit_status = EXIT_SUCCESS;
2090 * If the standard error isn't a terminal, don't print packet counts,
2091 * as they won't show up on the user's terminal and they'll get in
2092 * the way of error messages in the file (to which we assume the
2093 * standard error was redirected; if it's redirected to the null
2094 * device, there's no point in printing packet counts anyway).
2096 * Otherwise, if we're printing packet information and the standard
2097 * output is a terminal (which we assume means the standard output and
2098 * error are going to the same terminal), don't print packet counts,
2099 * as they'll get in the way of the packet information.
2101 * Otherwise, if the user specified -q, don't print packet counts.
2103 * Otherwise, print packet counts.
2105 * XXX - what if the user wants to do a live capture, doesn't want
2106 * to save it to a file, doesn't want information printed for each
2107 * packet, does want some "-z" statistic, and wants packet counts
2108 * so they know whether they're seeing any packets? -q will
2109 * suppress the information printed for each packet, but it'll
2110 * also suppress the packet counts.
2112 if (!ws_isatty(ws_fileno(stderr)))
2113 print_packet_counts = FALSE;
2114 else if (print_packet_info && ws_isatty(ws_fileno(stdout)))
2115 print_packet_counts = FALSE;
2117 print_packet_counts = FALSE;
2119 print_packet_counts = TRUE;
2121 if (print_packet_info) {
2122 if (!write_preamble(&cfile)) {
2123 show_print_file_io_error(errno);
2124 exit_status = INVALID_FILE;
2129 tshark_debug("tshark: performing live capture");
2131 * XXX - this returns FALSE if an error occurred, but it also
2132 * returns FALSE if the capture stops because a time limit
2133 * was reached (and possibly other limits), so we can't assume
2134 * it means an error.
2136 * The capture code is a bit twisty, so it doesn't appear to
2137 * be an easy fix. We just ignore the return value for now.
2138 * Instead, pass on the exit status from the capture child.
2141 exit_status = global_capture_session.fork_child_status;
2143 if (print_packet_info) {
2144 if (!write_finale()) {
2145 show_print_file_io_error(errno);
2149 /* No - complain. */
2150 cmdarg_err("This version of TShark was not built with support for capturing packets.");
2151 exit_status = INVALID_CAPTURE;
2158 if (cfile.frames != NULL) {
2159 free_frame_data_sequence(cfile.frames);
2160 cfile.frames = NULL;
2163 draw_tap_listeners(TRUE);
2164 funnel_dump_all_text_windows();
2165 epan_free(cfile.epan);
2171 output_fields_free(output_fields);
2172 output_fields = NULL;
2175 destroy_print_stream(print_stream);
2177 capture_opts_cleanup(&global_capture_opts);
2179 col_cleanup(&cfile.cinfo);
2180 free_filter_lists();
2190 /*#define USE_BROKEN_G_MAIN_LOOP*/
2192 #ifdef USE_BROKEN_G_MAIN_LOOP
2195 gboolean loop_running = FALSE;
2197 guint32 packet_count = 0;
2200 typedef struct pipe_input_tag {
2203 ws_process_id *child_process;
2204 pipe_input_cb_t input_cb;
2205 guint pipe_input_id;
2207 GMutex *callback_running;
2211 static pipe_input_t pipe_input;
2214 /* The timer has expired, see if there's stuff to read from the pipe,
2215 if so, do the callback */
2217 pipe_timer_cb(gpointer data)
2223 pipe_input_t *pipe_input_p = data;
2224 gint iterations = 0;
2226 g_mutex_lock (pipe_input_p->callback_running);
2228 /* try to read data from the pipe only 5 times, to avoid blocking */
2229 while(iterations < 5) {
2230 /*g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_timer_cb: new iteration");*/
2232 /* Oddly enough although Named pipes don't work on win9x,
2233 PeekNamedPipe does !!! */
2234 handle = (HANDLE) _get_osfhandle (pipe_input_p->source);
2235 result = PeekNamedPipe(handle, NULL, 0, NULL, &avail, NULL);
2237 /* Get the child process exit status */
2238 GetExitCodeProcess((HANDLE)*(pipe_input_p->child_process),
2241 /* If the Peek returned an error, or there are bytes to be read
2242 or the childwatcher thread has terminated then call the normal
2244 if (!result || avail > 0 || childstatus != STILL_ACTIVE) {
2246 /*g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_timer_cb: data avail");*/
2248 /* And call the real handler */
2249 if (!pipe_input_p->input_cb(pipe_input_p->source, pipe_input_p->user_data)) {
2250 g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_timer_cb: input pipe closed, iterations: %u", iterations);
2251 /* pipe closed, return false so that the timer is stopped */
2252 g_mutex_unlock (pipe_input_p->callback_running);
2257 /*g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_timer_cb: no data avail");*/
2258 /* No data, stop now */
2265 /*g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_timer_cb: finished with iterations: %u, new timer", iterations);*/
2267 g_mutex_unlock (pipe_input_p->callback_running);
2269 /* we didn't stopped the timer, so let it run */
2276 pipe_input_set_handler(gint source, gpointer user_data, ws_process_id *child_process, pipe_input_cb_t input_cb)
2279 pipe_input.source = source;
2280 pipe_input.child_process = child_process;
2281 pipe_input.user_data = user_data;
2282 pipe_input.input_cb = input_cb;
2285 #if GLIB_CHECK_VERSION(2,31,0)
2286 pipe_input.callback_running = g_malloc(sizeof(GMutex));
2287 g_mutex_init(pipe_input.callback_running);
2289 pipe_input.callback_running = g_mutex_new();
2291 /* Tricky to use pipes in win9x, as no concept of wait. NT can
2292 do this but that doesn't cover all win32 platforms. GTK can do
2293 this but doesn't seem to work over processes. Attempt to do
2294 something similar here, start a timer and check for data on every
2296 /*g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_input_set_handler: new");*/
2297 pipe_input.pipe_input_id = g_timeout_add(200, pipe_timer_cb, &pipe_input);
2301 static const nstime_t *
2302 tshark_get_frame_ts(void *data, guint32 frame_num)
2304 capture_file *cf = (capture_file *) data;
2306 if (ref && ref->num == frame_num)
2307 return &ref->abs_ts;
2309 if (prev_dis && prev_dis->num == frame_num)
2310 return &prev_dis->abs_ts;
2312 if (prev_cap && prev_cap->num == frame_num)
2313 return &prev_cap->abs_ts;
2316 frame_data *fd = frame_data_sequence_find(cf->frames, frame_num);
2318 return (fd) ? &fd->abs_ts : NULL;
2325 tshark_epan_new(capture_file *cf)
2327 epan_t *epan = epan_new();
2330 epan->get_frame_ts = tshark_get_frame_ts;
2331 epan->get_interface_name = cap_file_get_interface_name;
2332 epan->get_interface_description = cap_file_get_interface_description;
2333 epan->get_user_comment = NULL;
2345 #ifdef USE_TSHARK_SELECT
2349 struct sigaction action, oldaction;
2352 /* Create new dissection section. */
2353 epan_free(cfile.epan);
2354 cfile.epan = tshark_epan_new(&cfile);
2357 /* Catch a CTRL+C event and, if we get it, clean up and exit. */
2358 SetConsoleCtrlHandler(capture_cleanup, TRUE);
2360 /* Catch SIGINT and SIGTERM and, if we get either of them,
2361 clean up and exit. If SIGHUP isn't being ignored, catch
2362 it too and, if we get it, clean up and exit.
2364 We restart any read that was in progress, so that it doesn't
2365 disrupt reading from the sync pipe. The signal handler tells
2366 the capture child to finish; it will report that it finished,
2367 or will exit abnormally, so we'll stop reading from the sync
2368 pipe, pick up the exit status, and quit. */
2369 memset(&action, 0, sizeof(action));
2370 action.sa_handler = capture_cleanup;
2371 action.sa_flags = SA_RESTART;
2372 sigemptyset(&action.sa_mask);
2373 sigaction(SIGTERM, &action, NULL);
2374 sigaction(SIGINT, &action, NULL);
2375 sigaction(SIGHUP, NULL, &oldaction);
2376 if (oldaction.sa_handler == SIG_DFL)
2377 sigaction(SIGHUP, &action, NULL);
2380 /* Catch SIGINFO and, if we get it and we're capturing to a file in
2381 quiet mode, report the number of packets we've captured.
2383 Again, restart any read that was in progress, so that it doesn't
2384 disrupt reading from the sync pipe. */
2385 action.sa_handler = report_counts_siginfo;
2386 action.sa_flags = SA_RESTART;
2387 sigemptyset(&action.sa_mask);
2388 sigaction(SIGINFO, &action, NULL);
2389 #endif /* SIGINFO */
2392 global_capture_session.state = CAPTURE_PREPARING;
2394 /* Let the user know which interfaces were chosen. */
2395 for (i = 0; i < global_capture_opts.ifaces->len; i++) {
2396 interface_options interface_opts;
2398 interface_opts = g_array_index(global_capture_opts.ifaces, interface_options, i);
2399 interface_opts.descr = get_interface_descriptive_name(interface_opts.name);
2400 global_capture_opts.ifaces = g_array_remove_index(global_capture_opts.ifaces, i);
2401 g_array_insert_val(global_capture_opts.ifaces, i, interface_opts);
2403 str = get_iface_list_string(&global_capture_opts, IFLIST_QUOTE_IF_DESCRIPTION);
2404 if (really_quiet == FALSE)
2405 fprintf(stderr, "Capturing on %s\n", str->str);
2407 g_string_free(str, TRUE);
2409 ret = sync_pipe_start(&global_capture_opts, &global_capture_session, &global_info_data, NULL);
2414 /* the actual capture loop
2416 * XXX - glib doesn't seem to provide any event based loop handling.
2418 * XXX - for whatever reason,
2419 * calling g_main_loop_new() ends up in 100% cpu load.
2421 * But that doesn't matter: in UNIX we can use select() to find an input
2422 * source with something to do.
2424 * But that doesn't matter because we're in a CLI (that doesn't need to
2425 * update a GUI or something at the same time) so it's OK if we block
2426 * trying to read from the pipe.
2428 * So all the stuff in USE_TSHARK_SELECT could be removed unless I'm
2429 * wrong (but I leave it there in case I am...).
2432 #ifdef USE_TSHARK_SELECT
2434 FD_SET(pipe_input.source, &readfds);
2437 loop_running = TRUE;
2441 while (loop_running)
2443 #ifdef USE_TSHARK_SELECT
2444 ret = select(pipe_input.source+1, &readfds, NULL, NULL, NULL);
2448 fprintf(stderr, "%s: %s\n", "select()", g_strerror(errno));
2450 } else if (ret == 1) {
2452 /* Call the real handler */
2453 if (!pipe_input.input_cb(pipe_input.source, pipe_input.user_data)) {
2454 g_log(NULL, G_LOG_LEVEL_DEBUG, "input pipe closed");
2457 #ifdef USE_TSHARK_SELECT
2462 CATCH(OutOfMemoryError) {
2466 "Sorry, but TShark has to terminate now.\n"
2468 "More information and workarounds can be found at\n"
2469 "https://wiki.wireshark.org/KnownBugs/OutOfMemory\n");
2476 /* capture child detected an error */
2478 capture_input_error_message(capture_session *cap_session _U_, char *error_msg, char *secondary_error_msg)
2480 cmdarg_err("%s", error_msg);
2481 cmdarg_err_cont("%s", secondary_error_msg);
2485 /* capture child detected an capture filter related error */
2487 capture_input_cfilter_error_message(capture_session *cap_session, guint i, char *error_message)
2489 capture_options *capture_opts = cap_session->capture_opts;
2490 dfilter_t *rfcode = NULL;
2491 interface_options interface_opts;
2493 g_assert(i < capture_opts->ifaces->len);
2494 interface_opts = g_array_index(capture_opts->ifaces, interface_options, i);
2496 if (dfilter_compile(interface_opts.cfilter, &rfcode, NULL) && rfcode != NULL) {
2498 "Invalid capture filter \"%s\" for interface '%s'.\n"
2500 "That string looks like a valid display filter; however, it isn't a valid\n"
2501 "capture filter (%s).\n"
2503 "Note that display filters and capture filters don't have the same syntax,\n"
2504 "so you can't use most display filter expressions as capture filters.\n"
2506 "See the User's Guide for a description of the capture filter syntax.",
2507 interface_opts.cfilter, interface_opts.descr, error_message);
2508 dfilter_free(rfcode);
2511 "Invalid capture filter \"%s\" for interface '%s'.\n"
2513 "That string isn't a valid capture filter (%s).\n"
2514 "See the User's Guide for a description of the capture filter syntax.",
2515 interface_opts.cfilter, interface_opts.descr, error_message);
2520 /* capture child tells us we have a new (or the first) capture file */
2522 capture_input_new_file(capture_session *cap_session, gchar *new_file)
2524 capture_options *capture_opts = cap_session->capture_opts;
2525 capture_file *cf = (capture_file *) cap_session->cf;
2526 gboolean is_tempfile;
2529 if (cap_session->state == CAPTURE_PREPARING) {
2530 g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_MESSAGE, "Capture started.");
2532 g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_MESSAGE, "File: \"%s\"", new_file);
2534 g_assert(cap_session->state == CAPTURE_PREPARING || cap_session->state == CAPTURE_RUNNING);
2536 /* free the old filename */
2537 if (capture_opts->save_file != NULL) {
2539 /* we start a new capture file, close the old one (if we had one before) */
2540 if (cf->state != FILE_CLOSED) {
2541 if (cf->wth != NULL) {
2542 wtap_close(cf->wth);
2545 cf->state = FILE_CLOSED;
2548 g_free(capture_opts->save_file);
2549 is_tempfile = FALSE;
2551 epan_free(cf->epan);
2552 cf->epan = tshark_epan_new(cf);
2554 /* we didn't had a save_file before, must be a tempfile */
2558 /* save the new filename */
2559 capture_opts->save_file = g_strdup(new_file);
2561 /* if we are in real-time mode, open the new file now */
2562 if (do_dissection) {
2563 /* this is probably unecessary, but better safe than sorry */
2564 ((capture_file *)cap_session->cf)->open_type = WTAP_TYPE_AUTO;
2565 /* Attempt to open the capture file and set up to read from it. */
2566 switch(cf_open((capture_file *)cap_session->cf, capture_opts->save_file, WTAP_TYPE_AUTO, is_tempfile, &err)) {
2570 /* Don't unlink (delete) the save file - leave it around,
2571 for debugging purposes. */
2572 g_free(capture_opts->save_file);
2573 capture_opts->save_file = NULL;
2578 cap_session->state = CAPTURE_RUNNING;
2584 /* capture child tells us we have new packets to read */
2586 capture_input_new_packets(capture_session *cap_session, int to_read)
2592 capture_file *cf = (capture_file *)cap_session->cf;
2593 gboolean filtering_tap_listeners;
2598 * Prevent a SIGINFO handler from writing to the standard error while
2599 * we're doing so or writing to the standard output; instead, have it
2600 * just set a flag telling us to print that information when we're done.
2603 #endif /* SIGINFO */
2605 /* Do we have any tap listeners with filters? */
2606 filtering_tap_listeners = have_filtering_tap_listeners();
2608 /* Get the union of the flags for all tap listeners. */
2609 tap_flags = union_of_tap_listener_flags();
2611 if (do_dissection) {
2612 gboolean create_proto_tree;
2613 epan_dissect_t *edt;
2616 * Determine whether we need to create a protocol tree.
2619 * we're going to apply a read filter;
2621 * we're going to apply a display filter;
2623 * we're going to print the protocol tree;
2625 * one of the tap listeners is going to apply a filter;
2627 * one of the tap listeners requires a protocol tree;
2629 * a postdissector wants field values or protocols
2630 * on the first pass;
2632 * we have custom columns (which require field values, which
2633 * currently requires that we build a protocol tree).
2636 (cf->rfcode || cf->dfcode || print_details || filtering_tap_listeners ||
2637 (tap_flags & TL_REQUIRES_PROTO_TREE) || postdissectors_want_hfids() ||
2638 have_custom_cols(&cf->cinfo) || dissect_color);
2640 /* The protocol tree will be "visible", i.e., printed, only if we're
2641 printing packet details, which is true if we're printing stuff
2642 ("print_packet_info" is true) and we're in verbose mode
2643 ("packet_details" is true). */
2644 edt = epan_dissect_new(cf->epan, create_proto_tree, print_packet_info && print_details);
2646 while (to_read-- && cf->wth) {
2647 wtap_cleareof(cf->wth);
2648 ret = wtap_read(cf->wth, &err, &err_info, &data_offset);
2649 reset_epan_mem(cf, edt, create_proto_tree, print_packet_info && print_details);
2651 /* read from file failed, tell the capture child to stop */
2652 sync_pipe_stop(cap_session);
2653 wtap_close(cf->wth);
2656 ret = process_packet_single_pass(cf, edt, data_offset,
2658 wtap_buf_ptr(cf->wth), tap_flags);
2661 /* packet successfully read and gone through the "Read Filter" */
2666 epan_dissect_free(edt);
2670 * Dumpcap's doing all the work; we're not doing any dissection.
2671 * Count all the packets it wrote.
2673 packet_count += to_read;
2676 if (print_packet_counts) {
2677 /* We're printing packet counts. */
2678 if (packet_count != 0) {
2679 fprintf(stderr, "\r%u ", packet_count);
2680 /* stderr could be line buffered */
2687 * Allow SIGINFO handlers to write.
2692 * If a SIGINFO handler asked us to write out capture counts, do so.
2696 #endif /* SIGINFO */
2702 if ((print_packet_counts == FALSE) && (really_quiet == FALSE)) {
2703 /* Report the count only if we aren't printing a packet count
2704 as packets arrive. */
2705 fprintf(stderr, "%u packet%s captured\n", packet_count,
2706 plurality(packet_count, "", "s"));
2709 infoprint = FALSE; /* we just reported it */
2710 #endif /* SIGINFO */
2715 report_counts_siginfo(int signum _U_)
2717 int sav_errno = errno;
2718 /* If we've been told to delay printing, just set a flag asking
2719 that we print counts (if we're supposed to), otherwise print
2720 the count of packets captured (if we're supposed to). */
2727 #endif /* SIGINFO */
2730 /* capture child detected any packet drops? */
2732 capture_input_drops(capture_session *cap_session _U_, guint32 dropped)
2734 if (print_packet_counts) {
2735 /* We're printing packet counts to stderr.
2736 Send a newline so that we move to the line after the packet count. */
2737 fprintf(stderr, "\n");
2741 /* We're printing packet counts to stderr.
2742 Send a newline so that we move to the line after the packet count. */
2743 fprintf(stderr, "%u packet%s dropped\n", dropped, plurality(dropped, "", "s"));
2749 * Capture child closed its side of the pipe, report any error and
2750 * do the required cleanup.
2753 capture_input_closed(capture_session *cap_session, gchar *msg)
2755 capture_file *cf = (capture_file *) cap_session->cf;
2758 fprintf(stderr, "tshark: %s\n", msg);
2762 if (cf != NULL && cf->wth != NULL) {
2763 wtap_close(cf->wth);
2764 if (cf->is_tempfile) {
2765 ws_unlink(cf->filename);
2768 #ifdef USE_BROKEN_G_MAIN_LOOP
2769 /*g_main_loop_quit(loop);*/
2770 g_main_loop_quit(loop);
2772 loop_running = FALSE;
2781 capture_cleanup(DWORD ctrltype _U_)
2783 /* CTRL_C_EVENT is sort of like SIGINT, CTRL_BREAK_EVENT is unique to
2784 Windows, CTRL_CLOSE_EVENT is sort of like SIGHUP, CTRL_LOGOFF_EVENT
2785 is also sort of like SIGHUP, and CTRL_SHUTDOWN_EVENT is sort of
2786 like SIGTERM at least when the machine's shutting down.
2788 For now, we handle them all as indications that we should clean up
2789 and quit, just as we handle SIGINT, SIGHUP, and SIGTERM in that
2792 We must return TRUE so that no other handler - such as one that would
2793 terminate the process - gets called.
2795 XXX - for some reason, typing ^C to TShark, if you run this in
2796 a Cygwin console window in at least some versions of Cygwin,
2797 causes TShark to terminate immediately; this routine gets
2798 called, but the main loop doesn't get a chance to run and
2799 exit cleanly, at least if this is compiled with Microsoft Visual
2800 C++ (i.e., it's a property of the Cygwin console window or Bash;
2801 it happens if TShark is not built with Cygwin - for all I know,
2802 building it with Cygwin may make the problem go away). */
2804 /* tell the capture child to stop */
2805 sync_pipe_stop(&global_capture_session);
2807 /* don't stop our own loop already here, otherwise status messages and
2808 * cleanup wouldn't be done properly. The child will indicate the stop of
2809 * everything by calling capture_input_closed() later */
2815 capture_cleanup(int signum _U_)
2817 /* tell the capture child to stop */
2818 sync_pipe_stop(&global_capture_session);
2820 /* don't stop our own loop already here, otherwise status messages and
2821 * cleanup wouldn't be done properly. The child will indicate the stop of
2822 * everything by calling capture_input_closed() later */
2825 #endif /* HAVE_LIBPCAP */
2828 process_packet_first_pass(capture_file *cf, epan_dissect_t *edt,
2829 gint64 offset, struct wtap_pkthdr *whdr,
2836 /* The frame number of this packet is one more than the count of
2837 frames in this packet. */
2838 framenum = cf->count + 1;
2840 /* If we're not running a display filter and we're not printing any
2841 packet information, we don't need to do a dissection. This means
2842 that all packets can be marked as 'passed'. */
2845 frame_data_init(&fdlocal, framenum, whdr, offset, cum_bytes);
2847 /* If we're going to run a read filter or a display filter, set up to
2848 do a dissection and do so. (This is the first pass of two passes
2849 over the packets, so we will not be printing any information
2850 from the dissection or running taps on the packet; if we're doing
2851 any of that, we'll do it in the second pass.) */
2853 if (gbl_resolv_flags.mac_name || gbl_resolv_flags.network_name ||
2854 gbl_resolv_flags.transport_name)
2855 /* Grab any resolved addresses */
2856 host_name_lookup_process();
2858 /* If we're running a read filter, prime the epan_dissect_t with that
2861 epan_dissect_prime_with_dfilter(edt, cf->rfcode);
2864 epan_dissect_prime_with_dfilter(edt, cf->dfcode);
2866 /* This is the first pass, so prime the epan_dissect_t with the
2867 hfids postdissectors want on the first pass. */
2868 prime_epan_dissect_with_postdissector_wanted_hfids(edt);
2870 frame_data_set_before_dissect(&fdlocal, &cf->elapsed_time,
2872 if (ref == &fdlocal) {
2873 ref_frame = fdlocal;
2877 epan_dissect_run(edt, cf->cd_t, whdr, frame_tvbuff_new(&fdlocal, pd), &fdlocal, NULL);
2879 /* Run the read filter if we have one. */
2881 passed = dfilter_apply_edt(cf->rfcode, edt);
2885 frame_data_set_after_dissect(&fdlocal, &cum_bytes);
2886 prev_cap = prev_dis = frame_data_sequence_add(cf->frames, &fdlocal);
2888 /* If we're not doing dissection then there won't be any dependent frames.
2889 * More importantly, edt.pi.dependent_frames won't be initialized because
2890 * epan hasn't been initialized.
2891 * if we *are* doing dissection, then mark the dependent frames, but only
2892 * if a display filter was given and it matches this packet.
2894 if (edt && cf->dfcode) {
2895 if (dfilter_apply_edt(cf->dfcode, edt)) {
2896 g_slist_foreach(edt->pi.dependent_frames, find_and_mark_frame_depended_upon, cf->frames);
2902 /* if we don't add it to the frame_data_sequence, clean it up right now
2904 frame_data_destroy(&fdlocal);
2908 epan_dissect_reset(edt);
2914 process_packet_second_pass(capture_file *cf, epan_dissect_t *edt,
2915 frame_data *fdata, struct wtap_pkthdr *phdr,
2916 Buffer *buf, guint tap_flags)
2921 /* If we're not running a display filter and we're not printing any
2922 packet information, we don't need to do a dissection. This means
2923 that all packets can be marked as 'passed'. */
2926 /* If we're going to print packet information, or we're going to
2927 run a read filter, or we're going to process taps, set up to
2928 do a dissection and do so. (This is the second pass of two
2929 passes over the packets; that's the pass where we print
2930 packet information or run taps.) */
2932 if (gbl_resolv_flags.mac_name || gbl_resolv_flags.network_name ||
2933 gbl_resolv_flags.transport_name)
2934 /* Grab any resolved addresses */
2935 host_name_lookup_process();
2937 /* If we're running a display filter, prime the epan_dissect_t with that
2940 epan_dissect_prime_with_dfilter(edt, cf->dfcode);
2942 col_custom_prime_edt(edt, &cf->cinfo);
2944 /* We only need the columns if either
2945 1) some tap needs the columns
2947 2) we're printing packet info but we're *not* verbose; in verbose
2948 mode, we print the protocol tree, not the protocol summary.
2950 if ((tap_flags & TL_REQUIRES_COLUMNS) || (print_packet_info && print_summary) || output_fields_has_cols(output_fields))
2955 frame_data_set_before_dissect(fdata, &cf->elapsed_time,
2962 if (dissect_color) {
2963 color_filters_prime_edt(edt);
2964 fdata->flags.need_colorize = 1;
2967 epan_dissect_run_with_taps(edt, cf->cd_t, phdr, frame_tvbuff_new_buffer(fdata, buf), fdata, cinfo);
2969 /* Run the read/display filter if we have one. */
2971 passed = dfilter_apply_edt(cf->dfcode, edt);
2975 frame_data_set_after_dissect(fdata, &cum_bytes);
2976 /* Process this packet. */
2977 if (print_packet_info) {
2978 /* We're printing packet information; print the information for
2980 print_packet(cf, edt);
2982 /* If we're doing "line-buffering", flush the standard output
2983 after every packet. See the comment above, for the "-l"
2984 option, for an explanation of why we do that. */
2988 if (ferror(stdout)) {
2989 show_print_file_io_error(errno);
2998 epan_dissect_reset(edt);
3000 return passed || fdata->flags.dependent_of_displayed;
3004 process_cap_file(capture_file *cf, char *save_file, int out_file_type,
3005 gboolean out_file_name_res, int max_packet_count, gint64 max_byte_count)
3007 gboolean success = TRUE;
3009 int snapshot_length;
3012 int err = 0, err_pass1 = 0;
3013 gchar *err_info = NULL, *err_info_pass1 = NULL;
3015 gboolean filtering_tap_listeners;
3017 GArray *shb_hdrs = NULL;
3018 wtapng_iface_descriptions_t *idb_inf = NULL;
3019 GArray *nrb_hdrs = NULL;
3020 struct wtap_pkthdr phdr;
3022 epan_dissect_t *edt = NULL;
3023 char *shb_user_appl;
3025 wtap_phdr_init(&phdr);
3027 idb_inf = wtap_file_get_idb_info(cf->wth);
3028 #ifdef PCAP_NG_DEFAULT
3029 if (idb_inf->interface_data->len > 1) {
3030 linktype = WTAP_ENCAP_PER_PACKET;
3032 linktype = wtap_file_encap(cf->wth);
3035 linktype = wtap_file_encap(cf->wth);
3037 if (save_file != NULL) {
3038 /* Set up to write to the capture file. */
3039 snapshot_length = wtap_snapshot_length(cf->wth);
3040 if (snapshot_length == 0) {
3041 /* Snapshot length of input file not known. */
3042 snapshot_length = WTAP_MAX_PACKET_SIZE_STANDARD;
3044 tshark_debug("tshark: snapshot_length = %d", snapshot_length);
3046 shb_hdrs = wtap_file_get_shb_for_new_file(cf->wth);
3047 nrb_hdrs = wtap_file_get_nrb_for_new_file(cf->wth);
3049 /* If we don't have an application name add Tshark */
3050 if (wtap_block_get_string_option_value(g_array_index(shb_hdrs, wtap_block_t, 0), OPT_SHB_USERAPPL, &shb_user_appl) != WTAP_OPTTYPE_SUCCESS) {
3051 /* this is free'd by wtap_block_free() later */
3052 wtap_block_add_string_option_format(g_array_index(shb_hdrs, wtap_block_t, 0), OPT_SHB_USERAPPL, "TShark (Wireshark) %s", get_ws_vcs_version_info());
3055 if (linktype != WTAP_ENCAP_PER_PACKET &&
3056 out_file_type == WTAP_FILE_TYPE_SUBTYPE_PCAP) {
3057 tshark_debug("tshark: writing PCAP format to %s", save_file);
3058 if (strcmp(save_file, "-") == 0) {
3059 /* Write to the standard output. */
3060 pdh = wtap_dump_open_stdout(out_file_type, linktype,
3061 snapshot_length, FALSE /* compressed */, &err);
3063 pdh = wtap_dump_open(save_file, out_file_type, linktype,
3064 snapshot_length, FALSE /* compressed */, &err);
3068 tshark_debug("tshark: writing format type %d, to %s", out_file_type, save_file);
3069 if (strcmp(save_file, "-") == 0) {
3070 /* Write to the standard output. */
3071 pdh = wtap_dump_open_stdout_ng(out_file_type, linktype,
3072 snapshot_length, FALSE /* compressed */, shb_hdrs, idb_inf, nrb_hdrs, &err);
3074 pdh = wtap_dump_open_ng(save_file, out_file_type, linktype,
3075 snapshot_length, FALSE /* compressed */, shb_hdrs, idb_inf, nrb_hdrs, &err);
3083 /* We couldn't set up to write to the capture file. */
3084 cfile_dump_open_failure_message("TShark", save_file, err, out_file_type);
3089 /* Set up to print packet information. */
3090 if (print_packet_info) {
3091 if (!write_preamble(cf)) {
3092 show_print_file_io_error(errno);
3102 /* Do we have any tap listeners with filters? */
3103 filtering_tap_listeners = have_filtering_tap_listeners();
3105 /* Get the union of the flags for all tap listeners. */
3106 tap_flags = union_of_tap_listener_flags();
3108 if (perform_two_pass_analysis) {
3111 tshark_debug("tshark: perform_two_pass_analysis, do_dissection=%s", do_dissection ? "TRUE" : "FALSE");
3113 /* Allocate a frame_data_sequence for all the frames. */
3114 cf->frames = new_frame_data_sequence();
3116 if (do_dissection) {
3117 gboolean create_proto_tree;
3120 * Determine whether we need to create a protocol tree.
3123 * we're going to apply a read filter;
3125 * we're going to apply a display filter;
3127 * a postdissector wants field values or protocols
3128 * on the first pass.
3131 (cf->rfcode != NULL || cf->dfcode != NULL || postdissectors_want_hfids() || dissect_color);
3133 tshark_debug("tshark: create_proto_tree = %s", create_proto_tree ? "TRUE" : "FALSE");
3135 /* We're not going to display the protocol tree on this pass,
3136 so it's not going to be "visible". */
3137 edt = epan_dissect_new(cf->epan, create_proto_tree, FALSE);
3140 tshark_debug("tshark: reading records for first pass");
3141 while (wtap_read(cf->wth, &err, &err_info, &data_offset)) {
3142 if (process_packet_first_pass(cf, edt, data_offset, wtap_phdr(cf->wth),
3143 wtap_buf_ptr(cf->wth))) {
3144 /* Stop reading if we have the maximum number of packets;
3145 * When the -c option has not been used, max_packet_count
3146 * starts at 0, which practically means, never stop reading.
3147 * (unless we roll over max_packet_count ?)
3149 if ( (--max_packet_count == 0) || (max_byte_count != 0 && data_offset >= max_byte_count)) {
3150 tshark_debug("tshark: max_packet_count (%d) or max_byte_count (%" G_GINT64_MODIFIER "d/%" G_GINT64_MODIFIER "d) reached",
3151 max_packet_count, data_offset, max_byte_count);
3152 err = 0; /* This is not an error */
3159 * If we got a read error on the first pass, remember the error, so
3160 * but do the second pass, so we can at least process the packets we
3161 * read, and then report the first-pass error after the second pass
3162 * (and before we report any second-pass errors), so all the the
3163 * errors show up at the end.
3167 err_info_pass1 = err_info;
3173 epan_dissect_free(edt);
3177 /* Close the sequential I/O side, to free up memory it requires. */
3178 wtap_sequential_close(cf->wth);
3180 /* Allow the protocol dissectors to free up memory that they
3181 * don't need after the sequential run-through of the packets. */
3182 postseq_cleanup_all_protocols();
3186 ws_buffer_init(&buf, 1500);
3188 tshark_debug("tshark: done with first pass");
3190 if (do_dissection) {
3191 gboolean create_proto_tree;
3194 * Determine whether we need to create a protocol tree.
3197 * we're going to apply a display filter;
3199 * we're going to print the protocol tree;
3201 * one of the tap listeners requires a protocol tree;
3203 * we have custom columns (which require field values, which
3204 * currently requires that we build a protocol tree).
3207 (cf->dfcode || print_details || filtering_tap_listeners ||
3208 (tap_flags & TL_REQUIRES_PROTO_TREE) || have_custom_cols(&cf->cinfo) || dissect_color);
3210 tshark_debug("tshark: create_proto_tree = %s", create_proto_tree ? "TRUE" : "FALSE");
3212 /* The protocol tree will be "visible", i.e., printed, only if we're
3213 printing packet details, which is true if we're printing stuff
3214 ("print_packet_info" is true) and we're in verbose mode
3215 ("packet_details" is true). */
3216 edt = epan_dissect_new(cf->epan, create_proto_tree, print_packet_info && print_details);
3219 for (framenum = 1; err == 0 && framenum <= cf->count; framenum++) {
3220 fdata = frame_data_sequence_find(cf->frames, framenum);
3221 if (wtap_seek_read(cf->wth, fdata->file_off, &phdr, &buf, &err,
3223 tshark_debug("tshark: invoking process_packet_second_pass() for frame #%d", framenum);
3224 if (process_packet_second_pass(cf, edt, fdata, &phdr, &buf,
3226 /* Either there's no read filtering or this packet passed the
3227 filter, so, if we're writing to a capture file, write
3230 tshark_debug("tshark: writing packet #%d to outfile", framenum);
3231 if (!wtap_dump(pdh, &phdr, ws_buffer_start_ptr(&buf), &err, &err_info)) {
3232 /* Error writing to a capture file */
3233 tshark_debug("tshark: error writing to a capture file (%d)", err);
3235 /* Report the error.
3236 XXX - framenum is not necessarily the frame number in
3237 the input file if there was a read filter. */
3238 cfile_write_failure_message("TShark", cf->filename, save_file,
3239 err, err_info, framenum,
3241 wtap_dump_close(pdh, &err);
3242 wtap_block_array_free(shb_hdrs);
3243 wtap_block_array_free(nrb_hdrs);
3252 epan_dissect_free(edt);
3256 ws_buffer_free(&buf);
3258 tshark_debug("tshark: done with second pass");
3261 /* !perform_two_pass_analysis */
3263 gboolean create_proto_tree = FALSE;
3264 tshark_debug("tshark: perform one pass analysis, do_dissection=%s", do_dissection ? "TRUE" : "FALSE");
3266 if (do_dissection) {
3268 * Determine whether we need to create a protocol tree.
3271 * we're going to apply a read filter;
3273 * we're going to apply a display filter;
3275 * we're going to print the protocol tree;
3277 * one of the tap listeners is going to apply a filter;
3279 * one of the tap listeners requires a protocol tree;
3281 * a postdissector wants field values or protocols
3282 * on the first pass;
3284 * we have custom columns (which require field values, which
3285 * currently requires that we build a protocol tree).
3288 (cf->rfcode || cf->dfcode || print_details || filtering_tap_listeners ||
3289 (tap_flags & TL_REQUIRES_PROTO_TREE) || postdissectors_want_hfids() ||
3290 have_custom_cols(&cf->cinfo) || dissect_color);
3292 tshark_debug("tshark: create_proto_tree = %s", create_proto_tree ? "TRUE" : "FALSE");
3294 /* The protocol tree will be "visible", i.e., printed, only if we're
3295 printing packet details, which is true if we're printing stuff
3296 ("print_packet_info" is true) and we're in verbose mode
3297 ("packet_details" is true). */
3298 edt = epan_dissect_new(cf->epan, create_proto_tree, print_packet_info && print_details);
3301 while (wtap_read(cf->wth, &err, &err_info, &data_offset)) {
3304 tshark_debug("tshark: processing packet #%d", framenum);
3306 reset_epan_mem(cf, edt, create_proto_tree, print_packet_info && print_details);
3308 if (process_packet_single_pass(cf, edt, data_offset, wtap_phdr(cf->wth),
3309 wtap_buf_ptr(cf->wth), tap_flags)) {
3310 /* Either there's no read filtering or this packet passed the
3311 filter, so, if we're writing to a capture file, write
3314 tshark_debug("tshark: writing packet #%d to outfile", framenum);
3315 if (!wtap_dump(pdh, wtap_phdr(cf->wth), wtap_buf_ptr(cf->wth), &err, &err_info)) {
3316 /* Error writing to a capture file */
3317 tshark_debug("tshark: error writing to a capture file (%d)", err);
3318 cfile_write_failure_message("TShark", cf->filename, save_file,
3319 err, err_info, framenum, out_file_type);
3320 wtap_dump_close(pdh, &err);
3321 wtap_block_array_free(shb_hdrs);
3322 wtap_block_array_free(nrb_hdrs);
3327 /* Stop reading if we have the maximum number of packets;
3328 * When the -c option has not been used, max_packet_count
3329 * starts at 0, which practically means, never stop reading.
3330 * (unless we roll over max_packet_count ?)
3332 if ( (--max_packet_count == 0) || (max_byte_count != 0 && data_offset >= max_byte_count)) {
3333 tshark_debug("tshark: max_packet_count (%d) or max_byte_count (%" G_GINT64_MODIFIER "d/%" G_GINT64_MODIFIER "d) reached",
3334 max_packet_count, data_offset, max_byte_count);
3335 err = 0; /* This is not an error */
3341 epan_dissect_free(edt);
3346 wtap_phdr_cleanup(&phdr);
3348 if (err != 0 || err_pass1 != 0) {
3349 tshark_debug("tshark: something failed along the line (%d)", err);
3351 * Print a message noting that the read failed somewhere along the line.
3353 * If we're printing packet data, and the standard output and error are
3354 * going to the same place, flush the standard output, so everything
3355 * buffered up is written, and then print a newline to the standard error
3356 * before printing the error message, to separate it from the packet
3357 * data. (Alas, that only works on UN*X; st_dev is meaningless, and
3358 * the _fstat() documentation at Microsoft doesn't indicate whether
3359 * st_ino is even supported.)
3362 if (print_packet_info) {
3363 ws_statb64 stat_stdout, stat_stderr;
3365 if (ws_fstat64(1, &stat_stdout) == 0 && ws_fstat64(2, &stat_stderr) == 0) {
3366 if (stat_stdout.st_dev == stat_stderr.st_dev &&
3367 stat_stdout.st_ino == stat_stderr.st_ino) {
3369 fprintf(stderr, "\n");
3374 if (err_pass1 != 0) {
3375 /* Error on pass 1 of two-pass processing. */
3376 cfile_read_failure_message("TShark", cf->filename, err_pass1,
3380 /* Error on pass 2 of two-pass processing or on the only pass of
3381 one-pass processing. */
3382 cfile_read_failure_message("TShark", cf->filename, err, err_info);
3386 if (save_file != NULL) {
3387 if (pdh && out_file_name_res) {
3388 if (!wtap_dump_set_addrinfo_list(pdh, get_addrinfo_list())) {
3389 cmdarg_err("The file format \"%s\" doesn't support name resolution information.",
3390 wtap_file_type_subtype_short_string(out_file_type));
3393 /* Now close the capture file. */
3394 if (!wtap_dump_close(pdh, &err)) {
3395 cfile_close_failure_message(save_file, err);
3399 if (print_packet_info) {
3400 if (!write_finale()) {
3401 show_print_file_io_error(errno);
3408 wtap_close(cf->wth);
3411 wtap_block_array_free(shb_hdrs);
3412 wtap_block_array_free(nrb_hdrs);
3418 process_packet_single_pass(capture_file *cf, epan_dissect_t *edt, gint64 offset,
3419 struct wtap_pkthdr *whdr, const guchar *pd,
3426 /* Count this packet. */
3429 /* If we're not running a display filter and we're not printing any
3430 packet information, we don't need to do a dissection. This means
3431 that all packets can be marked as 'passed'. */
3434 frame_data_init(&fdata, cf->count, whdr, offset, cum_bytes);
3436 /* If we're going to print packet information, or we're going to
3437 run a read filter, or we're going to process taps, set up to
3438 do a dissection and do so. (This is the one and only pass
3439 over the packets, so, if we'll be printing packet information
3440 or running taps, we'll be doing it here.) */
3442 if (print_packet_info && (gbl_resolv_flags.mac_name || gbl_resolv_flags.network_name ||
3443 gbl_resolv_flags.transport_name))
3444 /* Grab any resolved addresses */
3445 host_name_lookup_process();
3447 /* If we're running a filter, prime the epan_dissect_t with that
3450 epan_dissect_prime_with_dfilter(edt, cf->dfcode);
3452 /* This is the first and only pass, so prime the epan_dissect_t
3453 with the hfids postdissectors want on the first pass. */
3454 prime_epan_dissect_with_postdissector_wanted_hfids(edt);
3456 col_custom_prime_edt(edt, &cf->cinfo);
3458 /* We only need the columns if either
3459 1) some tap needs the columns
3461 2) we're printing packet info but we're *not* verbose; in verbose
3462 mode, we print the protocol tree, not the protocol summary.
3464 3) there is a column mapped as an individual field */
3465 if ((tap_flags & TL_REQUIRES_COLUMNS) || (print_packet_info && print_summary) || output_fields_has_cols(output_fields))
3470 frame_data_set_before_dissect(&fdata, &cf->elapsed_time,
3472 if (ref == &fdata) {
3477 if (dissect_color) {
3478 color_filters_prime_edt(edt);
3479 fdata.flags.need_colorize = 1;
3482 epan_dissect_run_with_taps(edt, cf->cd_t, whdr, frame_tvbuff_new(&fdata, pd), &fdata, cinfo);
3484 /* Run the filter if we have it. */
3486 passed = dfilter_apply_edt(cf->dfcode, edt);
3490 frame_data_set_after_dissect(&fdata, &cum_bytes);
3492 /* Process this packet. */
3493 if (print_packet_info) {
3494 /* We're printing packet information; print the information for
3496 print_packet(cf, edt);
3498 /* If we're doing "line-buffering", flush the standard output
3499 after every packet. See the comment above, for the "-l"
3500 option, for an explanation of why we do that. */
3504 if (ferror(stdout)) {
3505 show_print_file_io_error(errno);
3510 /* this must be set after print_packet() [bug #8160] */
3511 prev_dis_frame = fdata;
3512 prev_dis = &prev_dis_frame;
3515 prev_cap_frame = fdata;
3516 prev_cap = &prev_cap_frame;
3519 epan_dissect_reset(edt);
3520 frame_data_destroy(&fdata);
3526 write_preamble(capture_file *cf)
3528 switch (output_action) {
3531 return print_preamble(print_stream, cf->filename, get_ws_vcs_version_info());
3535 write_pdml_preamble(stdout, cf->filename);
3537 write_psml_preamble(&cf->cinfo, stdout);
3538 return !ferror(stdout);
3541 write_fields_preamble(output_fields, stdout);
3542 return !ferror(stdout);
3545 case WRITE_JSON_RAW:
3546 write_json_preamble(stdout);
3547 return !ferror(stdout);
3550 return !ferror(stdout);
3553 g_assert_not_reached();
3559 get_line_buf(size_t len)
3561 static char *line_bufp = NULL;
3562 static size_t line_buf_len = 256;
3563 size_t new_line_buf_len;
3565 for (new_line_buf_len = line_buf_len; len > new_line_buf_len;
3566 new_line_buf_len *= 2)
3568 if (line_bufp == NULL) {
3569 line_buf_len = new_line_buf_len;
3570 line_bufp = (char *)g_malloc(line_buf_len + 1);
3572 if (new_line_buf_len > line_buf_len) {
3573 line_buf_len = new_line_buf_len;
3574 line_bufp = (char *)g_realloc(line_bufp, line_buf_len + 1);
3581 put_string(char *dest, const char *str, size_t str_len)
3583 memcpy(dest, str, str_len);
3584 dest[str_len] = '\0';
3588 put_spaces_string(char *dest, const char *str, size_t str_len, size_t str_with_spaces)
3592 for (i = str_len; i < str_with_spaces; i++)
3595 put_string(dest, str, str_len);
3599 put_string_spaces(char *dest, const char *str, size_t str_len, size_t str_with_spaces)
3603 memcpy(dest, str, str_len);
3604 for (i = str_len; i < str_with_spaces; i++)
3607 dest[str_with_spaces] = '\0';
3611 print_columns(capture_file *cf, const epan_dissect_t *edt)
3618 col_item_t* col_item;
3619 gchar str_format[11];
3620 const color_filter_t *color_filter = NULL;
3622 line_bufp = get_line_buf(256);
3627 color_filter = edt->pi.fd->color_filter;
3629 for (i = 0; i < cf->cinfo.num_cols; i++) {
3630 col_item = &cf->cinfo.columns[i];
3631 /* Skip columns not marked as visible. */
3632 if (!get_column_visible(i))
3634 switch (col_item->col_fmt) {
3636 column_len = col_len = strlen(col_item->col_data);
3639 line_bufp = get_line_buf(buf_offset + column_len);
3640 put_spaces_string(line_bufp + buf_offset, col_item->col_data, col_len, column_len);
3646 case COL_ABS_YMD_TIME: /* XXX - wider */
3647 case COL_ABS_YDOY_TIME: /* XXX - wider */
3649 case COL_UTC_YMD_TIME: /* XXX - wider */
3650 case COL_UTC_YDOY_TIME: /* XXX - wider */
3651 column_len = col_len = strlen(col_item->col_data);
3652 if (column_len < 10)
3654 line_bufp = get_line_buf(buf_offset + column_len);
3655 put_spaces_string(line_bufp + buf_offset, col_item->col_data, col_len, column_len);
3661 case COL_DEF_DL_SRC:
3662 case COL_RES_DL_SRC:
3663 case COL_UNRES_DL_SRC:
3664 case COL_DEF_NET_SRC:
3665 case COL_RES_NET_SRC:
3666 case COL_UNRES_NET_SRC:
3667 column_len = col_len = strlen(col_item->col_data);
3668 if (column_len < 12)
3670 line_bufp = get_line_buf(buf_offset + column_len);
3671 put_spaces_string(line_bufp + buf_offset, col_item->col_data, col_len, column_len);
3677 case COL_DEF_DL_DST:
3678 case COL_RES_DL_DST:
3679 case COL_UNRES_DL_DST:
3680 case COL_DEF_NET_DST:
3681 case COL_RES_NET_DST:
3682 case COL_UNRES_NET_DST:
3683 column_len = col_len = strlen(col_item->col_data);
3684 if (column_len < 12)
3686 line_bufp = get_line_buf(buf_offset + column_len);
3687 put_string_spaces(line_bufp + buf_offset, col_item->col_data, col_len, column_len);
3691 column_len = strlen(col_item->col_data);
3692 line_bufp = get_line_buf(buf_offset + column_len);
3693 put_string(line_bufp + buf_offset, col_item->col_data, column_len);
3696 buf_offset += column_len;
3697 if (i != cf->cinfo.num_cols - 1) {
3699 * This isn't the last column, so we need to print a
3700 * separator between this column and the next.
3702 * If we printed a network source and are printing a
3703 * network destination of the same type next, separate
3704 * them with a UTF-8 right arrow; if we printed a network
3705 * destination and are printing a network source of the same
3706 * type next, separate them with a UTF-8 left arrow;
3707 * otherwise separate them with a space.
3709 * We add enough space to the buffer for " \xe2\x86\x90 "
3710 * or " \xe2\x86\x92 ", even if we're only adding " ".
3712 line_bufp = get_line_buf(buf_offset + 5);
3713 switch (col_item->col_fmt) {
3718 switch (cf->cinfo.columns[i+1].col_fmt) {
3723 g_snprintf(str_format, sizeof(str_format), " %s%s", UTF8_RIGHTWARDS_ARROW, delimiter_char);
3724 put_string(line_bufp + buf_offset, str_format, 5);
3729 put_string(line_bufp + buf_offset, delimiter_char, 1);
3735 case COL_DEF_DL_SRC:
3736 case COL_RES_DL_SRC:
3737 case COL_UNRES_DL_SRC:
3738 switch (cf->cinfo.columns[i+1].col_fmt) {
3740 case COL_DEF_DL_DST:
3741 case COL_RES_DL_DST:
3742 case COL_UNRES_DL_DST:
3743 g_snprintf(str_format, sizeof(str_format), " %s%s", UTF8_RIGHTWARDS_ARROW, delimiter_char);
3744 put_string(line_bufp + buf_offset, str_format, 5);
3749 put_string(line_bufp + buf_offset, delimiter_char, 1);
3755 case COL_DEF_NET_SRC:
3756 case COL_RES_NET_SRC:
3757 case COL_UNRES_NET_SRC:
3758 switch (cf->cinfo.columns[i+1].col_fmt) {
3760 case COL_DEF_NET_DST:
3761 case COL_RES_NET_DST:
3762 case COL_UNRES_NET_DST:
3763 g_snprintf(str_format, sizeof(str_format), " %s%s", UTF8_RIGHTWARDS_ARROW, delimiter_char);
3764 put_string(line_bufp + buf_offset, str_format, 5);
3769 put_string(line_bufp + buf_offset, delimiter_char, 1);
3778 switch (cf->cinfo.columns[i+1].col_fmt) {
3783 g_snprintf(str_format, sizeof(str_format), " %s%s", UTF8_LEFTWARDS_ARROW, delimiter_char);
3784 put_string(line_bufp + buf_offset, str_format, 5);
3789 put_string(line_bufp + buf_offset, delimiter_char, 1);
3795 case COL_DEF_DL_DST:
3796 case COL_RES_DL_DST:
3797 case COL_UNRES_DL_DST:
3798 switch (cf->cinfo.columns[i+1].col_fmt) {
3800 case COL_DEF_DL_SRC:
3801 case COL_RES_DL_SRC:
3802 case COL_UNRES_DL_SRC:
3803 g_snprintf(str_format, sizeof(str_format), " %s%s", UTF8_LEFTWARDS_ARROW, delimiter_char);
3804 put_string(line_bufp + buf_offset, str_format, 5);
3809 put_string(line_bufp + buf_offset, delimiter_char, 1);
3815 case COL_DEF_NET_DST:
3816 case COL_RES_NET_DST:
3817 case COL_UNRES_NET_DST:
3818 switch (cf->cinfo.columns[i+1].col_fmt) {
3820 case COL_DEF_NET_SRC:
3821 case COL_RES_NET_SRC:
3822 case COL_UNRES_NET_SRC:
3823 g_snprintf(str_format, sizeof(str_format), " %s%s", UTF8_LEFTWARDS_ARROW, delimiter_char);
3824 put_string(line_bufp + buf_offset, str_format, 5);
3829 put_string(line_bufp + buf_offset, delimiter_char, 1);
3836 put_string(line_bufp + buf_offset, delimiter_char, 1);
3844 return print_line_color(print_stream, 0, line_bufp, &color_filter->fg_color, &color_filter->bg_color);
3846 return print_line(print_stream, 0, line_bufp);
3850 print_packet(capture_file *cf, epan_dissect_t *edt)
3852 if (print_summary || output_fields_has_cols(output_fields)) {
3853 /* Just fill in the columns. */
3854 epan_dissect_fill_in_columns(edt, FALSE, TRUE);
3856 if (print_summary) {
3857 /* Now print them. */
3858 switch (output_action) {
3861 if (!print_columns(cf, edt))
3866 write_psml_columns(edt, stdout);
3867 return !ferror(stdout);
3868 case WRITE_FIELDS: /*No non-verbose "fields" format */
3871 case WRITE_JSON_RAW:
3872 g_assert_not_reached();
3877 if (print_details) {
3878 /* Print the information in the protocol tree. */
3879 switch (output_action) {
3882 if (!proto_tree_print(print_details ? print_dissections_expanded : print_dissections_none,
3883 print_hex, edt, output_only_tables, print_stream))
3886 if (!print_line(print_stream, 0, separator))
3892 write_pdml_proto_tree(output_fields, protocolfilter, protocolfilter_flags, edt, stdout);
3894 return !ferror(stdout);
3896 write_fields_proto_tree(output_fields, edt, &cf->cinfo, stdout);
3898 return !ferror(stdout);
3900 write_json_proto_tree(output_fields, print_dissections_expanded,
3901 print_hex, protocolfilter, protocolfilter_flags,
3904 return !ferror(stdout);
3905 case WRITE_JSON_RAW:
3906 write_json_proto_tree(output_fields, print_dissections_none, TRUE,
3907 protocolfilter, protocolfilter_flags, edt, stdout);
3909 return !ferror(stdout);
3911 write_ek_proto_tree(output_fields, print_hex, protocolfilter,
3912 protocolfilter_flags, edt, stdout);
3913 return !ferror(stdout);
3917 if (print_summary || print_details) {
3918 if (!print_line(print_stream, 0, ""))
3921 if (!print_hex_data(print_stream, edt))
3923 if (!print_line(print_stream, 0, separator))
3932 switch (output_action) {
3935 return print_finale(print_stream);
3939 write_pdml_finale(stdout);
3941 write_psml_finale(stdout);
3942 return !ferror(stdout);
3945 write_fields_finale(output_fields, stdout);
3946 return !ferror(stdout);
3949 case WRITE_JSON_RAW:
3950 write_json_finale(stdout);
3951 return !ferror(stdout);
3954 return !ferror(stdout);
3957 g_assert_not_reached();
3963 cf_close(capture_file *cf)
3965 g_free(cf->filename);
3969 cf_open(capture_file *cf, const char *fname, unsigned int type, gboolean is_tempfile, int *err)
3974 wth = wtap_open_offline(fname, type, err, &err_info, perform_two_pass_analysis);
3978 /* The open succeeded. Fill in the information for this file. */
3980 /* Create new epan session for dissection. */
3981 epan_free(cf->epan);
3982 cf->epan = tshark_epan_new(cf);
3985 cf->f_datalen = 0; /* not used, but set it anyway */
3987 /* Set the file name because we need it to set the follow stream filter.
3988 XXX - is that still true? We need it for other reasons, though,
3990 cf->filename = g_strdup(fname);
3992 /* Indicate whether it's a permanent or temporary file. */
3993 cf->is_tempfile = is_tempfile;
3995 /* No user changes yet. */
3996 cf->unsaved_changes = FALSE;
3998 cf->cd_t = wtap_file_type_subtype(cf->wth);
3999 cf->open_type = type;
4001 cf->drops_known = FALSE;
4003 cf->snap = wtap_snapshot_length(cf->wth);
4004 nstime_set_zero(&cf->elapsed_time);
4009 cf->state = FILE_READ_IN_PROGRESS;
4011 wtap_set_cb_new_ipv4(cf->wth, add_ipv4_name);
4012 wtap_set_cb_new_ipv6(cf->wth, (wtap_new_ipv6_callback_t) add_ipv6_name);
4017 cfile_open_failure_message("TShark", fname, *err, err_info);
4022 show_print_file_io_error(int err)
4027 cmdarg_err("Not all the packets could be printed because there is "
4028 "no space left on the file system.");
4033 cmdarg_err("Not all the packets could be printed because you are "
4034 "too close to, or over your disk quota.");
4039 cmdarg_err("An error occurred while printing packets: %s.",
4046 * General errors and warnings are reported with an console message
4050 failure_warning_message(const char *msg_format, va_list ap)
4052 fprintf(stderr, "tshark: ");
4053 vfprintf(stderr, msg_format, ap);
4054 fprintf(stderr, "\n");
4058 * Open/create errors are reported with an console message in TShark.
4061 open_failure_message(const char *filename, int err, gboolean for_writing)
4063 fprintf(stderr, "tshark: ");
4064 fprintf(stderr, file_open_error_message(err, for_writing), filename);
4065 fprintf(stderr, "\n");
4069 * Read errors are reported with an console message in TShark.
4072 read_failure_message(const char *filename, int err)
4074 cmdarg_err("An error occurred while reading from the file \"%s\": %s.",
4075 filename, g_strerror(err));
4079 * Write errors are reported with an console message in TShark.
4082 write_failure_message(const char *filename, int err)
4084 cmdarg_err("An error occurred while writing to the file \"%s\": %s.",
4085 filename, g_strerror(err));
4088 static void reset_epan_mem(capture_file *cf,epan_dissect_t *edt, gboolean tree, gboolean visual)
4090 if (!epan_auto_reset || (cf->count < epan_auto_reset_count))
4093 fprintf(stderr, "resetting session.\n");
4095 epan_dissect_cleanup(edt);
4096 epan_free(cf->epan);
4098 cf->epan = tshark_epan_new(cf);
4099 epan_dissect_init(edt, cf->epan, tree, visual);
4104 * Report additional information for an error in command-line arguments.
4107 failure_message_cont(const char *msg_format, va_list ap)
4109 vfprintf(stderr, msg_format, ap);
4110 fprintf(stderr, "\n");
4114 * Editor modelines - https://www.wireshark.org/tools/modelines.html
4119 * indent-tabs-mode: nil
4122 * vi: set shiftwidth=2 tabstop=8 expandtab:
4123 * :indentSize=2:tabSize=8:noTabs=true:
git.samba.org / metze / wireshark / wip.git / blob