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");
447 fprintf(output, " Also supplies color attributes to pdml and psml formats\n");
448 fprintf(output, " (Note that attributes are nonstandard)\n");
450 fprintf(output, "\n");
451 fprintf(output, "Miscellaneous:\n");
452 fprintf(output, " -h display this help and exit\n");
453 fprintf(output, " -v display version info and exit\n");
454 fprintf(output, " -o <name>:<value> ... override preference setting\n");
455 fprintf(output, " -K <keytab> keytab file to use for kerberos decryption\n");
456 fprintf(output, " -G [report] dump one of several available reports and exit\n");
457 fprintf(output, " default report=\"fields\"\n");
458 fprintf(output, " use \"-G ?\" for more help\n");
460 fprintf(output, "\n");
461 fprintf(output, "WARNING: dumpcap will enable kernel BPF JIT compiler if available.\n");
462 fprintf(output, "You might want to reset it\n");
463 fprintf(output, "By doing \"echo 0 > /proc/sys/net/core/bpf_jit_enable\"\n");
464 fprintf(output, "\n");
470 glossary_option_help(void)
476 fprintf(output, "TShark (Wireshark) %s\n", get_ws_vcs_version_info());
478 fprintf(output, "\n");
479 fprintf(output, "Usage: tshark -G [report]\n");
480 fprintf(output, "\n");
481 fprintf(output, "Glossary table reports:\n");
482 fprintf(output, " -G column-formats dump column format codes and exit\n");
483 fprintf(output, " -G decodes dump \"layer type\"/\"decode as\" associations and exit\n");
484 fprintf(output, " -G dissector-tables dump dissector table names, types, and properties\n");
485 fprintf(output, " -G fieldcount dump count of header fields and exit\n");
486 fprintf(output, " -G fields dump fields glossary and exit\n");
487 fprintf(output, " -G ftypes dump field type basic and descriptive names\n");
488 fprintf(output, " -G heuristic-decodes dump heuristic dissector tables\n");
489 fprintf(output, " -G plugins dump installed plugins and exit\n");
490 fprintf(output, " -G protocols dump protocols in registration database and exit\n");
491 fprintf(output, " -G values dump value, range, true/false strings and exit\n");
492 fprintf(output, "\n");
493 fprintf(output, "Preference reports:\n");
494 fprintf(output, " -G currentprefs dump current preferences and exit\n");
495 fprintf(output, " -G defaultprefs dump default preferences and exit\n");
496 fprintf(output, " -G folders dump about:folders\n");
497 fprintf(output, "\n");
501 tshark_log_handler (const gchar *log_domain, GLogLevelFlags log_level,
502 const gchar *message, gpointer user_data)
504 /* ignore log message, if log_level isn't interesting based
505 upon the console log preferences.
506 If the preferences haven't been loaded loaded yet, display the
509 The default console_log_level preference value is such that only
510 ERROR, CRITICAL and WARNING level messages are processed;
511 MESSAGE, INFO and DEBUG level messages are ignored.
513 XXX: Aug 07, 2009: Prior tshark g_log code was hardwired to process only
514 ERROR and CRITICAL level messages so the current code is a behavioral
515 change. The current behavior is the same as in Wireshark.
517 if ((log_level & G_LOG_LEVEL_MASK & prefs.console_log_level) == 0 &&
518 prefs.console_log_level != 0) {
522 g_log_default_handler(log_domain, log_level, message, user_data);
527 print_current_user(void) {
528 gchar *cur_user, *cur_group;
530 if (started_with_special_privs()) {
531 cur_user = get_cur_username();
532 cur_group = get_cur_groupname();
533 fprintf(stderr, "Running as user \"%s\" and group \"%s\".",
534 cur_user, cur_group);
537 if (running_with_special_privs()) {
538 fprintf(stderr, " This could be dangerous.");
540 fprintf(stderr, "\n");
545 get_tshark_compiled_version_info(GString *str)
547 /* Capture libraries */
548 get_compiled_caplibs_version(str);
552 get_tshark_runtime_version_info(GString *str)
555 /* Capture libraries */
556 g_string_append(str, ", ");
557 get_runtime_caplibs_version(str);
560 /* stuff used by libwireshark */
561 epan_get_runtime_version_info(str);
567 const char *constpath;
569 #if defined(HAVE_LIBSMI) || defined(HAVE_GEOIP) || defined(HAVE_EXTCAP)
577 * Fetching the "File" dialogs folder not implemented.
578 * This is arguably just a pwd for a ui/cli .
582 printf("%-21s\t%s\n", "Temp:", g_get_tmp_dir());
585 path = get_persconffile_path("", FALSE);
586 printf("%-21s\t%s\n", "Personal configuration:", path);
590 constpath = get_datafile_dir();
591 if (constpath != NULL) {
592 printf("%-21s\t%s\n", "Global configuration:", constpath);
596 constpath = get_systemfile_dir();
597 printf("%-21s\t%s\n", "System:", constpath);
600 constpath = get_progfile_dir();
601 printf("%-21s\t%s\n", "Program:", constpath);
603 #if defined(HAVE_PLUGINS) || defined(HAVE_LUA)
605 path = get_plugins_pers_dir();
607 printf("%-21s\t%s\n", "Personal Plugins:", path);
612 printf("%-21s\t%s\n", "Global Plugins:", get_plugin_dir());
617 path = geoip_db_get_paths();
619 resultArray = g_strsplit(path, G_SEARCHPATH_SEPARATOR_S, 10);
621 for(i = 0; resultArray[i]; i++)
622 printf("%-21s\t%s\n", "GeoIP path:", g_strstrip(resultArray[i]));
624 g_strfreev(resultArray);
630 path = oid_get_default_mib_path();
631 resultArray = g_strsplit(path, G_SEARCHPATH_SEPARATOR_S, 10);
633 for(i = 0; resultArray[i]; i++)
634 printf("%-21s\t%s\n", "MIB/PIB path:", g_strstrip(resultArray[i]));
636 g_strfreev(resultArray);
642 constpath = get_extcap_dir();
644 resultArray = g_strsplit(constpath, G_SEARCHPATH_SEPARATOR_S, 10);
645 for(i = 0; resultArray[i]; i++)
646 printf("%-21s\t%s\n", "Extcap path:", g_strstrip(resultArray[i]));
648 g_strfreev(resultArray);
654 main(int argc, char *argv[])
656 GString *comp_info_str;
657 GString *runtime_info_str;
658 char *init_progfile_dir_error;
660 static const struct option long_options[] = {
661 {"help", no_argument, NULL, 'h'},
662 {"version", no_argument, NULL, 'v'},
663 LONGOPT_CAPTURE_COMMON
664 LONGOPT_DISSECT_COMMON
665 {"export-objects", required_argument, NULL, LONGOPT_EXPORT_OBJECTS},
666 {"color", no_argument, NULL, LONGOPT_COLOR},
669 gboolean arg_error = FALSE;
677 volatile gboolean success;
678 volatile int exit_status = EXIT_SUCCESS;
680 gboolean list_link_layer_types = FALSE;
681 gboolean start_capture = FALSE;
685 gboolean capture_option_specified = FALSE;
687 gboolean quiet = FALSE;
688 #ifdef PCAP_NG_DEFAULT
689 volatile int out_file_type = WTAP_FILE_TYPE_SUBTYPE_PCAPNG;
691 volatile int out_file_type = WTAP_FILE_TYPE_SUBTYPE_PCAP;
693 volatile gboolean out_file_name_res = FALSE;
694 volatile int in_file_type = WTAP_TYPE_AUTO;
695 gchar *volatile cf_name = NULL;
696 gchar *rfilter = NULL;
697 gchar *dfilter = NULL;
698 #ifdef HAVE_PCAP_OPEN_DEAD
699 struct bpf_program fcode;
701 dfilter_t *rfcode = NULL;
702 dfilter_t *dfcode = NULL;
706 gchar *output_only = NULL;
707 gchar *volatile pdu_export_arg = NULL;
708 const char *volatile exp_pdu_filename = NULL;
709 exp_pdu_t exp_pdu_tap_data;
712 * The leading + ensures that getopt_long() does not permute the argv[]
715 * We have to make sure that the first getopt_long() preserves the content
716 * of argv[] for the subsequent getopt_long() call.
718 * We use getopt_long() in both cases to ensure that we're using a routine
719 * whose permutation behavior we can control in the same fashion on all
720 * platforms, and so that, if we ever need to process a long argument before
721 * doing further initialization, we can do so.
723 * Glibc and Solaris libc document that a leading + disables permutation
724 * of options, regardless of whether POSIXLY_CORRECT is set or not; *BSD
725 * and macOS don't document it, but do so anyway.
727 * We do *not* use a leading - because the behavior of a leading - is
728 * platform-dependent.
730 #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:"
732 static const char optstring[] = OPTSTRING;
734 tshark_debug("tshark started with %d args", argc);
736 /* Set the C-language locale to the native environment. */
737 setlocale(LC_ALL, "");
739 cmdarg_err_init(failure_warning_message, failure_message_cont);
742 arg_list_utf_16to8(argc, argv);
743 create_app_running_mutex();
744 #if !GLIB_CHECK_VERSION(2,31,0)
750 * Get credential information for later use, and drop privileges
751 * before doing anything else.
752 * Let the user know if anything happened.
754 init_process_policies();
755 relinquish_special_privs_perm();
756 print_current_user();
759 * Attempt to get the pathname of the directory containing the
762 init_progfile_dir_error = init_progfile_dir(argv[0], main);
763 if (init_progfile_dir_error != NULL) {
765 "tshark: Can't get pathname of directory containing the tshark program: %s.\n"
766 "It won't be possible to capture traffic.\n"
767 "Report this to the Wireshark developers.",
768 init_progfile_dir_error);
769 g_free(init_progfile_dir_error);
772 initialize_funnel_ops();
775 ws_init_dll_search_path();
777 /* Load wpcap if possible. Do this before collecting the run-time version information */
780 /* Warn the user if npf.sys isn't loaded. */
781 if (!npf_sys_is_running() && get_windows_major_version() >= 6) {
782 fprintf(stderr, "The NPF driver isn't running. You may have trouble "
783 "capturing or\nlisting interfaces.\n");
785 #endif /* HAVE_LIBPCAP */
788 /* Get the compile-time version information string */
789 comp_info_str = get_compiled_version_info(get_tshark_compiled_version_info,
790 epan_get_compiled_version_info);
792 /* Get the run-time version information string */
793 runtime_info_str = get_runtime_version_info(get_tshark_runtime_version_info);
795 /* Add it to the information to be reported on a crash. */
796 ws_add_crash_info("TShark (Wireshark) %s\n"
801 get_ws_vcs_version_info(), comp_info_str->str, runtime_info_str->str);
802 g_string_free(comp_info_str, TRUE);
803 g_string_free(runtime_info_str, TRUE);
805 /* Fail sometimes. Useful for testing fuzz scripts. */
806 /* if (g_random_int_range(0, 100) < 5) abort(); */
809 * In order to have the -X opts assigned before the wslua machine starts
810 * we need to call getopt_long before epan_init() gets called.
812 * In order to handle, for example, -o options, we also need to call it
813 * *after* epan_init() gets called, so that the dissectors have had a
814 * chance to register their preferences.
816 * XXX - can we do this all with one getopt_long() call, saving the
817 * arguments we can't handle until after initializing libwireshark,
818 * and then process them after initializing libwireshark?
822 while ((opt = getopt_long(argc, argv, optstring, long_options, NULL)) != -1) {
824 case 'C': /* Configuration Profile */
825 if (profile_exists (optarg, FALSE)) {
826 set_profile_name (optarg);
828 cmdarg_err("Configuration Profile \"%s\" does not exist", optarg);
829 exit_status = INVALID_OPTION;
833 case 'P': /* Print packet summary info even when writing to a file */
834 print_packet_info = TRUE;
835 print_summary = TRUE;
837 case 'O': /* Only output these protocols */
838 output_only = g_strdup(optarg);
840 case 'V': /* Verbose */
841 print_details = TRUE;
842 print_packet_info = TRUE;
844 case 'x': /* Print packet data in hex (and ASCII) */
846 /* The user asked for hex output, so let's ensure they get it,
847 * even if they're writing to a file.
849 print_packet_info = TRUE;
860 * Print packet summary information is the default, unless either -V or -x
861 * were specified and -P was not. Note that this is new behavior, which
862 * allows for the possibility of printing only hex/ascii output without
863 * necessarily requiring that either the summary or details be printed too.
865 if (print_summary == -1)
866 print_summary = (print_details || print_hex) ? FALSE : TRUE;
868 /** Send All g_log messages to our own handler **/
872 G_LOG_LEVEL_CRITICAL|
877 G_LOG_FLAG_FATAL|G_LOG_FLAG_RECURSION;
879 g_log_set_handler(NULL,
880 (GLogLevelFlags)log_flags,
881 tshark_log_handler, NULL /* user_data */);
882 g_log_set_handler(LOG_DOMAIN_MAIN,
883 (GLogLevelFlags)log_flags,
884 tshark_log_handler, NULL /* user_data */);
887 g_log_set_handler(LOG_DOMAIN_CAPTURE,
888 (GLogLevelFlags)log_flags,
889 tshark_log_handler, NULL /* user_data */);
890 g_log_set_handler(LOG_DOMAIN_CAPTURE_CHILD,
891 (GLogLevelFlags)log_flags,
892 tshark_log_handler, NULL /* user_data */);
895 init_report_message(failure_warning_message, failure_warning_message,
896 open_failure_message, read_failure_message,
897 write_failure_message);
900 capture_opts_init(&global_capture_opts);
901 capture_session_init(&global_capture_session, &cfile);
904 timestamp_set_type(TS_RELATIVE);
905 timestamp_set_precision(TS_PREC_AUTO);
906 timestamp_set_seconds_type(TS_SECONDS_DEFAULT);
911 /* Register all the plugin types we have. */
912 epan_register_plugin_types(); /* Types known to libwireshark */
914 /* Scan for plugins. This does *not* call their registration routines;
915 that's done later. */
916 scan_plugins(REPORT_LOAD_FAILURE);
918 /* Register all libwiretap plugin modules. */
919 register_all_wiretap_modules();
922 /* Register all dissectors; we must do this before checking for the
923 "-G" flag, as the "-G" flag dumps information registered by the
924 dissectors, and we must do it before we read the preferences, in
925 case any dissectors register preferences. */
926 if (!epan_init(register_all_protocols, register_all_protocol_handoffs, NULL,
928 exit_status = INIT_FAILED;
932 /* Register all tap listeners; we do this before we parse the arguments,
933 as the "-z" argument can specify a registered tap. */
935 /* we register the plugin taps before the other taps because
936 stats_tree taps plugins will be registered as tap listeners
937 by stats_tree_stat.c and need to registered before that */
939 register_all_plugin_tap_listeners();
942 extcap_register_preferences();
944 register_all_tap_listeners();
945 conversation_table_set_gui_info(init_iousers);
946 hostlist_table_set_gui_info(init_hostlists);
947 srt_table_iterate_tables(register_srt_tables, NULL);
948 rtd_table_iterate_tables(register_rtd_tables, NULL);
949 new_stat_tap_iterate_tables(register_simple_stat_tables, NULL);
951 /* If invoked with the "-G" flag, we dump out information based on
952 the argument to the "-G" flag; if no argument is specified,
953 for backwards compatibility we dump out a glossary of display
956 XXX - we do this here, for now, to support "-G" with no arguments.
957 If none of our build or other processes uses "-G" with no arguments,
958 we can just process it with the other arguments. */
959 if (argc >= 2 && strcmp(argv[1], "-G") == 0) {
960 proto_initialize_all_prefixes();
963 proto_registrar_dump_fields();
965 if (strcmp(argv[2], "column-formats") == 0)
966 column_dump_column_formats();
967 else if (strcmp(argv[2], "currentprefs") == 0) {
968 epan_load_settings();
971 else if (strcmp(argv[2], "decodes") == 0)
972 dissector_dump_decodes();
973 else if (strcmp(argv[2], "defaultprefs") == 0)
975 else if (strcmp(argv[2], "dissector-tables") == 0)
976 dissector_dump_dissector_tables();
977 else if (strcmp(argv[2], "fieldcount") == 0) {
978 /* return value for the test suite */
979 exit_status = proto_registrar_dump_fieldcount();
981 } else if (strcmp(argv[2], "fields") == 0)
982 proto_registrar_dump_fields();
983 else if (strcmp(argv[2], "folders") == 0)
985 else if (strcmp(argv[2], "ftypes") == 0)
986 proto_registrar_dump_ftypes();
987 else if (strcmp(argv[2], "heuristic-decodes") == 0)
988 dissector_dump_heur_decodes();
989 else if (strcmp(argv[2], "plugins") == 0) {
994 wslua_plugins_dump_all();
997 else if (strcmp(argv[2], "protocols") == 0)
998 proto_registrar_dump_protocols();
999 else if (strcmp(argv[2], "values") == 0)
1000 proto_registrar_dump_values();
1001 else if (strcmp(argv[2], "?") == 0)
1002 glossary_option_help();
1003 else if (strcmp(argv[2], "-?") == 0)
1004 glossary_option_help();
1006 cmdarg_err("Invalid \"%s\" option for -G flag, enter -G ? for more help.", argv[2]);
1007 exit_status = INVALID_OPTION;
1011 exit_status = EXIT_SUCCESS;
1015 tshark_debug("tshark reading settings");
1017 /* Load libwireshark settings from the current profile. */
1018 prefs_p = epan_load_settings();
1020 read_filter_list(CFILTER_LIST);
1022 cap_file_init(&cfile);
1024 /* Print format defaults to this. */
1025 print_format = PR_FMT_TEXT;
1026 delimiter_char = " ";
1028 output_fields = output_fields_new();
1031 * To reset the options parser, set optreset to 1 on platforms that
1032 * have optreset (documented in *BSD and macOS, apparently present but
1033 * not documented in Solaris - the Illumos repository seems to
1034 * suggest that the first Solaris getopt_long(), at least as of 2004,
1035 * was based on the NetBSD one, it had optreset) and set optind to 1,
1036 * and set optind to 0 otherwise (documented as working in the GNU
1037 * getopt_long(). Setting optind to 0 didn't originally work in the
1038 * NetBSD one, but that was added later - we don't want to depend on
1039 * it if we have optreset).
1041 * Also reset opterr to 1, so that error messages are printed by
1044 #ifdef HAVE_OPTRESET
1052 /* Now get our args */
1053 while ((opt = getopt_long(argc, argv, optstring, long_options, NULL)) != -1) {
1055 case '2': /* Perform two pass analysis */
1056 if(epan_auto_reset){
1057 cmdarg_err("-2 does not support auto session reset.");
1060 perform_two_pass_analysis = TRUE;
1063 if(perform_two_pass_analysis){
1064 cmdarg_err("-M does not support two pass analysis.");
1067 epan_auto_reset_count = get_positive_int(optarg, "epan reset count");
1068 epan_auto_reset = TRUE;
1070 case 'a': /* autostop criteria */
1071 case 'b': /* Ringbuffer option */
1072 case 'c': /* Capture x packets */
1073 case 'f': /* capture filter */
1074 case 'g': /* enable group read access on file(s) */
1075 case 'i': /* Use interface x */
1076 case 'p': /* Don't capture in promiscuous mode */
1077 #ifdef HAVE_PCAP_REMOTE
1078 case 'A': /* Authentication */
1080 #ifdef HAVE_PCAP_CREATE
1081 case 'I': /* Capture in monitor mode, if available */
1083 case 's': /* Set the snapshot (capture) length */
1084 case 'w': /* Write to capture file x */
1085 case 'y': /* Set the pcap data link type */
1086 case LONGOPT_NUM_CAP_COMMENT: /* add a capture comment */
1087 #ifdef CAN_SET_CAPTURE_BUFFER_SIZE
1088 case 'B': /* Buffer size */
1091 exit_status = capture_opts_add_opt(&global_capture_opts, opt, optarg, &start_capture);
1092 if (exit_status != 0) {
1098 * Output file name, if we're reading a file and writing to another
1101 output_file_name = optarg;
1103 capture_option_specified = TRUE;
1109 /* already processed; just ignore it now */
1111 case 'D': /* Print a list of capture devices and exit */
1113 if_list = capture_interface_list(&err, &err_str,NULL);
1114 if (if_list == NULL) {
1116 cmdarg_err("There are no interfaces on which a capture can be done");
1118 cmdarg_err("%s", err_str);
1121 exit_status = INVALID_INTERFACE;
1124 capture_opts_print_interfaces(if_list);
1125 free_interface_list(if_list);
1126 exit_status = EXIT_SUCCESS;
1129 capture_option_specified = TRUE;
1135 output_fields_add(output_fields, optarg);
1139 if (!output_fields_set_option(output_fields, optarg)) {
1140 cmdarg_err("\"%s\" is not a valid field output option=value pair.", optarg);
1141 output_fields_list_options(stderr);
1142 exit_status = INVALID_OPTION;
1147 out_file_type = wtap_short_string_to_file_type_subtype(optarg);
1148 if (out_file_type < 0) {
1149 cmdarg_err("\"%s\" isn't a valid capture file type", optarg);
1150 list_capture_types();
1151 exit_status = INVALID_OPTION;
1156 protocolfilter = wmem_strsplit(wmem_epan_scope(), optarg, " ", -1);
1159 protocolfilter_flags = PF_INCLUDE_CHILDREN;
1160 protocolfilter = wmem_strsplit(wmem_epan_scope(), optarg, " ", -1);
1162 case 'W': /* Select extra information to save in our capture file */
1163 /* This is patterned after the -N flag which may not be the best idea. */
1164 if (strchr(optarg, 'n')) {
1165 out_file_name_res = TRUE;
1167 cmdarg_err("Invalid -W argument \"%s\"; it must be one of:", optarg);
1168 cmdarg_err_cont("\t'n' write network address resolution information (pcapng only)");
1169 exit_status = INVALID_OPTION;
1173 case 'H': /* Read address to name mappings from a hosts file */
1174 if (! add_hosts_file(optarg))
1176 cmdarg_err("Can't read host entries from \"%s\"", optarg);
1177 exit_status = INVALID_OPTION;
1180 out_file_name_res = TRUE;
1183 case 'h': /* Print help and exit */
1184 printf("TShark (Wireshark) %s\n"
1185 "Dump and analyze network traffic.\n"
1186 "See https://www.wireshark.org for more information.\n",
1187 get_ws_vcs_version_info());
1188 print_usage(stdout);
1189 exit_status = EXIT_SUCCESS;
1192 case 'l': /* "Line-buffer" standard output */
1193 /* The ANSI C standard does not appear to *require* that a line-buffered
1194 stream be flushed to the host environment whenever a newline is
1195 written, it just says that, on such a stream, characters "are
1196 intended to be transmitted to or from the host environment as a
1197 block when a new-line character is encountered".
1199 The Visual C++ 6.0 C implementation doesn't do what is intended;
1200 even if you set a stream to be line-buffered, it still doesn't
1201 flush the buffer at the end of every line.
1203 The whole reason for the "-l" flag in either tcpdump or TShark
1204 is to allow the output of a live capture to be piped to a program
1205 or script and to have that script see the information for the
1206 packet as soon as it's printed, rather than having to wait until
1207 a standard I/O buffer fills up.
1209 So, if the "-l" flag is specified, we flush the standard output
1210 at the end of a packet. This will do the right thing if we're
1211 printing packet summary lines, and, as we print the entire protocol
1212 tree for a single packet without waiting for anything to happen,
1213 it should be as good as line-buffered mode if we're printing
1214 protocol trees - arguably even better, as it may do fewer
1216 line_buffered = TRUE;
1218 case 'L': /* Print list of link-layer types and exit */
1220 list_link_layer_types = TRUE;
1222 capture_option_specified = TRUE;
1226 case 'o': /* Override preference from command line */
1228 char *errmsg = NULL;
1230 switch (prefs_set_pref(optarg, &errmsg)) {
1235 case PREFS_SET_SYNTAX_ERR:
1236 cmdarg_err("Invalid -o flag \"%s\"%s%s", optarg,
1237 errmsg ? ": " : "", errmsg ? errmsg : "");
1239 exit_status = INVALID_OPTION;
1243 case PREFS_SET_NO_SUCH_PREF:
1244 case PREFS_SET_OBSOLETE:
1245 cmdarg_err("-o flag \"%s\" specifies unknown preference", optarg);
1246 exit_status = INVALID_OPTION;
1252 case 'q': /* Quiet */
1255 case 'Q': /* Really quiet */
1257 really_quiet = TRUE;
1259 case 'r': /* Read capture file x */
1260 cf_name = g_strdup(optarg);
1262 case 'R': /* Read file filter */
1266 /* already processed; just ignore it now */
1268 case 'S': /* Set the line Separator to be printed between packets */
1271 case 'T': /* printing Type */
1272 print_packet_info = TRUE;
1273 if (strcmp(optarg, "text") == 0) {
1274 output_action = WRITE_TEXT;
1275 print_format = PR_FMT_TEXT;
1276 } else if (strcmp(optarg, "tabs") == 0) {
1277 output_action = WRITE_TEXT;
1278 print_format = PR_FMT_TEXT;
1279 delimiter_char = "\t";
1280 } else if (strcmp(optarg, "ps") == 0) {
1281 output_action = WRITE_TEXT;
1282 print_format = PR_FMT_PS;
1283 } else if (strcmp(optarg, "pdml") == 0) {
1284 output_action = WRITE_XML;
1285 print_details = TRUE; /* Need details */
1286 print_summary = FALSE; /* Don't allow summary */
1287 } else if (strcmp(optarg, "psml") == 0) {
1288 output_action = WRITE_XML;
1289 print_details = FALSE; /* Don't allow details */
1290 print_summary = TRUE; /* Need summary */
1291 } else if (strcmp(optarg, "fields") == 0) {
1292 output_action = WRITE_FIELDS;
1293 print_details = TRUE; /* Need full tree info */
1294 print_summary = FALSE; /* Don't allow summary */
1295 } else if (strcmp(optarg, "json") == 0) {
1296 output_action = WRITE_JSON;
1297 print_details = TRUE; /* Need details */
1298 print_summary = FALSE; /* Don't allow summary */
1299 } else if (strcmp(optarg, "ek") == 0) {
1300 output_action = WRITE_EK;
1301 print_details = TRUE; /* Need details */
1302 print_summary = FALSE; /* Don't allow summary */
1303 } else if (strcmp(optarg, "jsonraw") == 0) {
1304 output_action = WRITE_JSON_RAW;
1305 print_details = TRUE; /* Need details */
1306 print_summary = FALSE; /* Don't allow summary */
1309 cmdarg_err("Invalid -T parameter \"%s\"; it must be one of:", optarg); /* x */
1310 cmdarg_err_cont("\t\"fields\" The values of fields specified with the -e option, in a form\n"
1311 "\t specified by the -E option.\n"
1312 "\t\"pdml\" Packet Details Markup Language, an XML-based format for the\n"
1313 "\t details of a decoded packet. This information is equivalent to\n"
1314 "\t the packet details printed with the -V flag.\n"
1315 "\t\"ps\" PostScript for a human-readable one-line summary of each of\n"
1316 "\t the packets, or a multi-line view of the details of each of\n"
1317 "\t the packets, depending on whether the -V flag was specified.\n"
1318 "\t\"psml\" Packet Summary Markup Language, an XML-based format for the\n"
1319 "\t summary information of a decoded packet. This information is\n"
1320 "\t equivalent to the information shown in the one-line summary\n"
1321 "\t printed by default.\n"
1322 "\t\"json\" Packet Summary, an JSON-based format for the details\n"
1323 "\t summary information of a decoded packet. This information is \n"
1324 "\t equivalent to the packet details printed with the -V flag.\n"
1325 "\t\"jsonraw\" Packet Details, a JSON-based format for machine parsing\n"
1326 "\t including only raw hex decoded fields (same as -T json -x but\n"
1327 "\t without text decoding, only raw fields included). \n"
1328 "\t\"ek\" Packet Details, an EK JSON-based format for the bulk insert \n"
1329 "\t into elastic search cluster. This information is \n"
1330 "\t equivalent to the packet details printed with the -V flag.\n"
1331 "\t\"text\" Text of a human-readable one-line summary of each of the\n"
1332 "\t packets, or a multi-line view of the details of each of the\n"
1333 "\t packets, depending on whether the -V flag was specified.\n"
1334 "\t This is the default.\n"
1335 "\t\"tabs\" Similar to the text report except that each column of the\n"
1336 "\t human-readable one-line summary is delimited with an ASCII\n"
1337 "\t horizontal tab character.");
1338 exit_status = INVALID_OPTION;
1342 case 'U': /* Export PDUs to file */
1344 GSList *export_pdu_tap_name_list = NULL;
1347 cmdarg_err("A tap name is required. Valid names are:");
1348 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)) {
1349 cmdarg_err("%s\n", (const char*)(export_pdu_tap_name_list->data));
1351 exit_status = INVALID_OPTION;
1354 pdu_export_arg = g_strdup(optarg);
1357 case 'v': /* Show version and exit */
1358 comp_info_str = get_compiled_version_info(get_tshark_compiled_version_info,
1359 epan_get_compiled_version_info);
1360 runtime_info_str = get_runtime_version_info(get_tshark_runtime_version_info);
1361 show_version("TShark (Wireshark)", comp_info_str, runtime_info_str);
1362 g_string_free(comp_info_str, TRUE);
1363 g_string_free(runtime_info_str, TRUE);
1364 /* We don't really have to cleanup here, but it's a convenient way to test
1365 * start-up and shut-down of the epan library without any UI-specific
1366 * cruft getting in the way. Makes the results of running
1367 * $ ./tools/valgrind-wireshark -n
1368 * much more useful. */
1373 exit_status = EXIT_SUCCESS;
1375 case 'O': /* Only output these protocols */
1376 /* already processed; just ignore it now */
1378 case 'V': /* Verbose */
1379 /* already processed; just ignore it now */
1381 case 'x': /* Print packet data in hex (and ASCII) */
1382 /* already processed; just ignore it now */
1385 /* already processed; just ignore it now */
1391 /* We won't call the init function for the stat this soon
1392 as it would disallow MATE's fields (which are registered
1393 by the preferences set callback) from being used as
1394 part of a tap filter. Instead, we just add the argument
1395 to a list of stat arguments. */
1396 if (strcmp("help", optarg) == 0) {
1397 fprintf(stderr, "tshark: The available statistics for the \"-z\" option are:\n");
1398 list_stat_cmd_args();
1399 exit_status = EXIT_SUCCESS;
1402 if (!process_stat_cmd_arg(optarg)) {
1403 cmdarg_err("Invalid -z argument \"%s\"; it must be one of:", optarg);
1404 list_stat_cmd_args();
1405 exit_status = INVALID_OPTION;
1409 case 'd': /* Decode as rule */
1410 case 'K': /* Kerberos keytab file */
1411 case 'n': /* No name resolution */
1412 case 'N': /* Select what types of addresses/port #s to resolve */
1413 case 't': /* Time stamp type */
1414 case 'u': /* Seconds type */
1415 case LONGOPT_DISABLE_PROTOCOL: /* disable dissection of protocol */
1416 case LONGOPT_ENABLE_HEURISTIC: /* enable heuristic dissection of protocol */
1417 case LONGOPT_DISABLE_HEURISTIC: /* disable heuristic dissection of protocol */
1418 case LONGOPT_ENABLE_PROTOCOL: /* enable dissection of protocol (that is disabled by default) */
1419 if (!dissect_opts_handle_opt(opt, optarg)) {
1420 exit_status = INVALID_OPTION;
1424 case LONGOPT_EXPORT_OBJECTS: /* --export-objects */
1425 if (strcmp("help", optarg) == 0) {
1426 fprintf(stderr, "tshark: The available export object types for the \"--export-objects\" option are:\n");
1427 eo_list_object_types();
1428 exit_status = EXIT_SUCCESS;
1431 if (!eo_tap_opt_add(optarg)) {
1432 exit_status = INVALID_OPTION;
1436 case LONGOPT_COLOR: /* print in color where appropriate */
1437 dissect_color = TRUE;
1440 case '?': /* Bad flag - print usage message */
1443 list_capture_types();
1446 print_usage(stderr);
1448 exit_status = INVALID_OPTION;
1454 /* If we specified output fields, but not the output field type... */
1455 if ((WRITE_FIELDS != output_action && WRITE_XML != output_action && WRITE_JSON != output_action && WRITE_EK != output_action) && 0 != output_fields_num_fields(output_fields)) {
1456 cmdarg_err("Output fields were specified with \"-e\", "
1457 "but \"-Tek, -Tfields, -Tjson or -Tpdml\" was not specified.");
1458 exit_status = INVALID_OPTION;
1460 } else if (WRITE_FIELDS == output_action && 0 == output_fields_num_fields(output_fields)) {
1461 cmdarg_err("\"-Tfields\" was specified, but no fields were "
1462 "specified with \"-e\".");
1464 exit_status = INVALID_OPTION;
1468 if (dissect_color) {
1469 if (!color_filters_init(&err_msg, NULL)) {
1470 fprintf(stderr, "%s\n", err_msg);
1475 /* If no capture filter or display filter has been specified, and there are
1476 still command-line arguments, treat them as the tokens of a capture
1477 filter (if no "-r" flag was specified) or a display filter (if a "-r"
1478 flag was specified. */
1479 if (optind < argc) {
1480 if (cf_name != NULL) {
1481 if (dfilter != NULL) {
1482 cmdarg_err("Display filters were specified both with \"-d\" "
1483 "and with additional command-line arguments.");
1484 exit_status = INVALID_OPTION;
1487 dfilter = get_args_as_string(argc, argv, optind);
1492 if (global_capture_opts.default_options.cfilter) {
1493 cmdarg_err("A default capture filter was specified both with \"-f\""
1494 " and with additional command-line arguments.");
1495 exit_status = INVALID_OPTION;
1498 for (i = 0; i < global_capture_opts.ifaces->len; i++) {
1499 interface_options interface_opts;
1500 interface_opts = g_array_index(global_capture_opts.ifaces, interface_options, i);
1501 if (interface_opts.cfilter == NULL) {
1502 interface_opts.cfilter = get_args_as_string(argc, argv, optind);
1503 global_capture_opts.ifaces = g_array_remove_index(global_capture_opts.ifaces, i);
1504 g_array_insert_val(global_capture_opts.ifaces, i, interface_opts);
1506 cmdarg_err("A capture filter was specified both with \"-f\""
1507 " and with additional command-line arguments.");
1508 exit_status = INVALID_OPTION;
1512 global_capture_opts.default_options.cfilter = get_args_as_string(argc, argv, optind);
1514 capture_option_specified = TRUE;
1520 if (!global_capture_opts.saving_to_file) {
1521 /* We're not saving the capture to a file; if "-q" wasn't specified,
1522 we should print packet information */
1524 print_packet_info = TRUE;
1526 /* We're saving to a file; if we're writing to the standard output.
1527 and we'll also be writing dissected packets to the standard
1528 output, reject the request. At best, we could redirect that
1529 to the standard error; we *can't* write both to the standard
1530 output and have either of them be useful. */
1531 if (strcmp(global_capture_opts.save_file, "-") == 0 && print_packet_info) {
1532 cmdarg_err("You can't write both raw packet data and dissected packets"
1533 " to the standard output.");
1534 exit_status = INVALID_OPTION;
1539 /* We're not saving the capture to a file; if "-q" wasn't specified,
1540 we should print packet information */
1542 print_packet_info = TRUE;
1545 #ifndef HAVE_LIBPCAP
1546 if (capture_option_specified)
1547 cmdarg_err("This version of TShark was not built with support for capturing packets.");
1550 print_usage(stderr);
1551 exit_status = INVALID_OPTION;
1556 if (output_action != WRITE_TEXT && output_action != WRITE_JSON && output_action != WRITE_JSON_RAW && output_action != WRITE_EK) {
1557 cmdarg_err("Raw packet hex data can only be printed as text, PostScript, JSON, JSONRAW or EK JSON");
1558 exit_status = INVALID_OPTION;
1563 if (output_only != NULL) {
1566 if (!print_details) {
1567 cmdarg_err("-O requires -V");
1568 exit_status = INVALID_OPTION;
1572 output_only_tables = g_hash_table_new (g_str_hash, g_str_equal);
1573 for (ps = strtok (output_only, ","); ps; ps = strtok (NULL, ",")) {
1574 g_hash_table_insert(output_only_tables, (gpointer)ps, (gpointer)ps);
1578 if (rfilter != NULL && !perform_two_pass_analysis) {
1579 cmdarg_err("-R without -2 is deprecated. For single-pass filtering use -Y.");
1580 exit_status = INVALID_OPTION;
1585 if (list_link_layer_types) {
1586 /* We're supposed to list the link-layer types for an interface;
1587 did the user also specify a capture file to be read? */
1589 /* Yes - that's bogus. */
1590 cmdarg_err("You can't specify -L and a capture file to be read.");
1591 exit_status = INVALID_OPTION;
1594 /* No - did they specify a ring buffer option? */
1595 if (global_capture_opts.multi_files_on) {
1596 cmdarg_err("Ring buffer requested, but a capture isn't being done.");
1597 exit_status = INVALID_OPTION;
1603 * "-r" was specified, so we're reading a capture file.
1604 * Capture options don't apply here.
1607 /* We don't support capture filters when reading from a capture file
1608 (the BPF compiler doesn't support all link-layer types that we
1609 support in capture files we read). */
1610 if (global_capture_opts.default_options.cfilter) {
1611 cmdarg_err("Only read filters, not capture filters, "
1612 "can be specified when reading a capture file.");
1613 exit_status = INVALID_OPTION;
1616 if (global_capture_opts.multi_files_on) {
1617 cmdarg_err("Multiple capture files requested, but "
1618 "a capture isn't being done.");
1619 exit_status = INVALID_OPTION;
1622 if (global_capture_opts.has_file_duration) {
1623 cmdarg_err("Switching capture files after a time interval was specified, but "
1624 "a capture isn't being done.");
1625 exit_status = INVALID_OPTION;
1628 if (global_capture_opts.has_ring_num_files) {
1629 cmdarg_err("A ring buffer of capture files was specified, but "
1630 "a capture isn't being done.");
1631 exit_status = INVALID_OPTION;
1634 if (global_capture_opts.has_autostop_files) {
1635 cmdarg_err("A maximum number of capture files was specified, but "
1636 "a capture isn't being done.");
1637 exit_status = INVALID_OPTION;
1640 if (global_capture_opts.capture_comment) {
1641 cmdarg_err("A capture comment was specified, but "
1642 "a capture isn't being done.\nThere's no support for adding "
1643 "a capture comment to an existing capture file.");
1644 exit_status = INVALID_OPTION;
1648 /* Note: TShark now allows the restriction of a _read_ file by packet count
1649 * and byte count as well as a write file. Other autostop options remain valid
1650 * only for a write file.
1652 if (global_capture_opts.has_autostop_duration) {
1653 cmdarg_err("A maximum capture time was specified, but "
1654 "a capture isn't being done.");
1655 exit_status = INVALID_OPTION;
1660 * "-r" wasn't specified, so we're doing a live capture.
1662 if (perform_two_pass_analysis) {
1663 /* Two-pass analysis doesn't work with live capture since it requires us
1664 * to buffer packets until we've read all of them, but a live capture
1665 * has no useful/meaningful definition of "all" */
1666 cmdarg_err("Live captures do not support two-pass analysis.");
1667 exit_status = INVALID_OPTION;
1671 if (global_capture_opts.saving_to_file) {
1672 /* They specified a "-w" flag, so we'll be saving to a capture file. */
1674 /* When capturing, we only support writing pcap or pcap-ng format. */
1675 if (out_file_type != WTAP_FILE_TYPE_SUBTYPE_PCAP &&
1676 out_file_type != WTAP_FILE_TYPE_SUBTYPE_PCAPNG) {
1677 cmdarg_err("Live captures can only be saved in pcap or pcapng format.");
1678 exit_status = INVALID_OPTION;
1681 if (global_capture_opts.capture_comment &&
1682 out_file_type != WTAP_FILE_TYPE_SUBTYPE_PCAPNG) {
1683 cmdarg_err("A capture comment can only be written to a pcapng file.");
1684 exit_status = INVALID_OPTION;
1687 if (global_capture_opts.multi_files_on) {
1688 /* Multiple-file mode doesn't work under certain conditions:
1689 a) it doesn't work if you're writing to the standard output;
1690 b) it doesn't work if you're writing to a pipe;
1692 if (strcmp(global_capture_opts.save_file, "-") == 0) {
1693 cmdarg_err("Multiple capture files requested, but "
1694 "the capture is being written to the standard output.");
1695 exit_status = INVALID_OPTION;
1698 if (global_capture_opts.output_to_pipe) {
1699 cmdarg_err("Multiple capture files requested, but "
1700 "the capture file is a pipe.");
1701 exit_status = INVALID_OPTION;
1704 if (!global_capture_opts.has_autostop_filesize &&
1705 !global_capture_opts.has_file_duration) {
1706 cmdarg_err("Multiple capture files requested, but "
1707 "no maximum capture file size or duration was specified.");
1708 exit_status = INVALID_OPTION;
1712 /* Currently, we don't support read or display filters when capturing
1713 and saving the packets. */
1714 if (rfilter != NULL) {
1715 cmdarg_err("Read filters aren't supported when capturing and saving the captured packets.");
1716 exit_status = INVALID_OPTION;
1719 if (dfilter != NULL) {
1720 cmdarg_err("Display filters aren't supported when capturing and saving the captured packets.");
1721 exit_status = INVALID_OPTION;
1724 global_capture_opts.use_pcapng = (out_file_type == WTAP_FILE_TYPE_SUBTYPE_PCAPNG) ? TRUE : FALSE;
1726 /* They didn't specify a "-w" flag, so we won't be saving to a
1727 capture file. Check for options that only make sense if
1728 we're saving to a file. */
1729 if (global_capture_opts.has_autostop_filesize) {
1730 cmdarg_err("Maximum capture file size specified, but "
1731 "capture isn't being saved to a file.");
1732 exit_status = INVALID_OPTION;
1735 if (global_capture_opts.multi_files_on) {
1736 cmdarg_err("Multiple capture files requested, but "
1737 "the capture isn't being saved to a file.");
1738 exit_status = INVALID_OPTION;
1741 if (global_capture_opts.capture_comment) {
1742 cmdarg_err("A capture comment was specified, but "
1743 "the capture isn't being saved to a file.");
1744 exit_status = INVALID_OPTION;
1753 /* Start windows sockets */
1754 result = WSAStartup( MAKEWORD( 1, 1 ), &wsaData );
1757 exit_status = INIT_FAILED;
1762 /* Notify all registered modules that have had any of their preferences
1763 changed either from one of the preferences file or from the command
1764 line that their preferences have changed. */
1767 /* At this point MATE will have registered its field array so we can
1768 have a tap filter with one of MATE's late-registered fields as part
1769 of the filter. We can now process all the "-z" arguments. */
1770 start_requested_stats();
1772 /* We can also enable specified taps for export object */
1773 start_exportobjects();
1775 /* At this point MATE will have registered its field array so we can
1776 check if the fields specified by the user are all good.
1780 GSList *invalid_fields = output_fields_valid(output_fields);
1781 if (invalid_fields != NULL) {
1783 cmdarg_err("Some fields aren't valid:");
1784 for (it=invalid_fields; it != NULL; it = g_slist_next(it)) {
1785 cmdarg_err_cont("\t%s", (gchar *)it->data);
1787 g_slist_free(invalid_fields);
1788 exit_status = INVALID_OPTION;
1793 /* We currently don't support taps, or printing dissected packets,
1794 if we're writing to a pipe. */
1795 if (global_capture_opts.saving_to_file &&
1796 global_capture_opts.output_to_pipe) {
1797 if (tap_listeners_require_dissection()) {
1798 cmdarg_err("Taps aren't supported when saving to a pipe.");
1799 exit_status = INVALID_OPTION;
1802 if (print_packet_info) {
1803 cmdarg_err("Printing dissected packets isn't supported when saving to a pipe.");
1804 exit_status = INVALID_OPTION;
1810 if (ex_opt_count("read_format") > 0) {
1811 const gchar* name = ex_opt_get_next("read_format");
1812 in_file_type = open_info_name_to_type(name);
1813 if (in_file_type == WTAP_TYPE_AUTO) {
1814 cmdarg_err("\"%s\" isn't a valid read file format type", name? name : "");
1815 list_read_capture_types();
1816 exit_status = INVALID_OPTION;
1821 timestamp_set_type(global_dissect_options.time_format);
1824 * Enabled and disabled protocols and heuristic dissectors as per
1825 * command-line options.
1827 if (!setup_enabled_and_disabled_protocols()) {
1828 exit_status = INVALID_OPTION;
1832 /* Build the column format array */
1833 build_column_format_array(&cfile.cinfo, prefs_p->num_cols, TRUE);
1836 capture_opts_trim_snaplen(&global_capture_opts, MIN_PACKET_SIZE);
1837 capture_opts_trim_ring_num_files(&global_capture_opts);
1840 if (rfilter != NULL) {
1841 tshark_debug("Compiling read filter: '%s'", rfilter);
1842 if (!dfilter_compile(rfilter, &rfcode, &err_msg)) {
1843 cmdarg_err("%s", err_msg);
1849 #ifdef HAVE_PCAP_OPEN_DEAD
1853 pc = pcap_open_dead(DLT_EN10MB, MIN_PACKET_SIZE);
1855 if (pcap_compile(pc, &fcode, rfilter, 0, 0) != -1) {
1857 " Note: That read filter code looks like a valid capture filter;\n"
1858 " maybe you mixed them up?");
1864 exit_status = INVALID_INTERFACE;
1868 cfile.rfcode = rfcode;
1870 if (dfilter != NULL) {
1871 tshark_debug("Compiling display filter: '%s'", dfilter);
1872 if (!dfilter_compile(dfilter, &dfcode, &err_msg)) {
1873 cmdarg_err("%s", err_msg);
1879 #ifdef HAVE_PCAP_OPEN_DEAD
1883 pc = pcap_open_dead(DLT_EN10MB, MIN_PACKET_SIZE);
1885 if (pcap_compile(pc, &fcode, dfilter, 0, 0) != -1) {
1887 " Note: That display filter code looks like a valid capture filter;\n"
1888 " maybe you mixed them up?");
1894 exit_status = INVALID_FILTER;
1898 cfile.dfcode = dfcode;
1900 if (print_packet_info) {
1901 /* If we're printing as text or PostScript, we have
1902 to create a print stream. */
1903 if (output_action == WRITE_TEXT) {
1904 switch (print_format) {
1907 print_stream = print_stream_text_stdio_new(stdout);
1911 print_stream = print_stream_ps_stdio_new(stdout);
1915 g_assert_not_reached();
1920 /* PDU export requested. Take the ownership of the '-w' file, apply tap
1921 * filters and start tapping. */
1922 if (pdu_export_arg) {
1923 const char *exp_pdu_tap_name = pdu_export_arg;
1924 const char *exp_pdu_filter = dfilter; /* may be NULL to disable filter */
1925 char *exp_pdu_error;
1930 cmdarg_err("PDUs export requires a capture file (specify with -r).");
1931 exit_status = INVALID_OPTION;
1934 /* Take ownership of the '-w' output file. */
1936 exp_pdu_filename = global_capture_opts.save_file;
1937 global_capture_opts.save_file = NULL;
1939 exp_pdu_filename = output_file_name;
1940 output_file_name = NULL;
1942 if (exp_pdu_filename == NULL) {
1943 cmdarg_err("PDUs export requires an output file (-w).");
1944 exit_status = INVALID_OPTION;
1948 exp_pdu_error = exp_pdu_pre_open(exp_pdu_tap_name, exp_pdu_filter,
1950 if (exp_pdu_error) {
1951 cmdarg_err("Cannot register tap: %s", exp_pdu_error);
1952 g_free(exp_pdu_error);
1953 exit_status = INVALID_TAP;
1957 exp_fd = ws_open(exp_pdu_filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0644);
1959 cmdarg_err("%s: %s", exp_pdu_filename, file_open_error_message(errno, TRUE));
1960 exit_status = INVALID_FILE;
1964 /* Activate the export PDU tap */
1965 comment = g_strdup_printf("Dump of PDUs from %s", cf_name);
1966 err = exp_pdu_open(&exp_pdu_tap_data, exp_fd, comment);
1968 cfile_dump_open_failure_message("TShark", exp_pdu_filename, err,
1969 WTAP_FILE_TYPE_SUBTYPE_PCAPNG);
1971 exit_status = INVALID_EXPORT;
1976 /* We have to dissect each packet if:
1978 we're printing information about each packet;
1980 we're using a read filter on the packets;
1982 we're using a display filter on the packets;
1984 we're exporting PDUs;
1986 we're using any taps that need dissection. */
1987 do_dissection = print_packet_info || rfcode || dfcode || pdu_export_arg ||
1988 tap_listeners_require_dissection() || dissect_color;
1989 tshark_debug("tshark: do_dissection = %s", do_dissection ? "TRUE" : "FALSE");
1992 tshark_debug("tshark: Opening capture file: %s", cf_name);
1994 * We're reading a capture file.
1996 if (cf_open(&cfile, cf_name, in_file_type, FALSE, &err) != CF_OK) {
2001 exit_status = INVALID_FILE;
2005 /* Process the packets in the file */
2006 tshark_debug("tshark: invoking process_cap_file() to process the packets");
2009 success = process_cap_file(&cfile, global_capture_opts.save_file, out_file_type, out_file_name_res,
2010 global_capture_opts.has_autostop_packets ? global_capture_opts.autostop_packets : 0,
2011 global_capture_opts.has_autostop_filesize ? global_capture_opts.autostop_filesize : 0);
2013 success = process_cap_file(&cfile, output_file_name, out_file_type, out_file_name_res, 0, 0);
2016 CATCH(OutOfMemoryError) {
2020 "Sorry, but TShark has to terminate now.\n"
2022 "More information and workarounds can be found at\n"
2023 "https://wiki.wireshark.org/KnownBugs/OutOfMemory\n");
2029 /* We still dump out the results of taps, etc., as we might have
2030 read some packets; however, we exit with an error status. */
2034 if (pdu_export_arg) {
2035 err = exp_pdu_close(&exp_pdu_tap_data);
2037 cfile_close_failure_message(exp_pdu_filename, err);
2040 g_free(pdu_export_arg);
2043 tshark_debug("tshark: no capture file specified");
2044 /* No capture file specified, so we're supposed to do a live capture
2045 or get a list of link-layer types for a live capture device;
2046 do we have support for live captures? */
2048 /* if no interface was specified, pick a default */
2049 exit_status = capture_opts_default_iface_if_necessary(&global_capture_opts,
2050 ((prefs_p->capture_device) && (*prefs_p->capture_device != '\0')) ? get_if_name(prefs_p->capture_device) : NULL);
2051 if (exit_status != 0) {
2055 /* if requested, list the link layer types and exit */
2056 if (list_link_layer_types) {
2059 /* Get the list of link-layer types for the capture devices. */
2060 for (i = 0; i < global_capture_opts.ifaces->len; i++) {
2061 interface_options interface_opts;
2062 if_capabilities_t *caps;
2063 char *auth_str = NULL;
2065 interface_opts = g_array_index(global_capture_opts.ifaces, interface_options, i);
2066 #ifdef HAVE_PCAP_REMOTE
2067 if (interface_opts.auth_type == CAPTURE_AUTH_PWD) {
2068 auth_str = g_strdup_printf("%s:%s", interface_opts.auth_username, interface_opts.auth_password);
2071 caps = capture_get_if_capabilities(interface_opts.name, interface_opts.monitor_mode, auth_str, &err_str, NULL);
2074 cmdarg_err("%s", err_str);
2076 exit_status = INVALID_CAPABILITY;
2079 if (caps->data_link_types == NULL) {
2080 cmdarg_err("The capture device \"%s\" has no data link types.", interface_opts.name);
2081 exit_status = INVALID_DATA_LINK;
2084 capture_opts_print_if_capabilities(caps, interface_opts.name, interface_opts.monitor_mode);
2085 free_if_capabilities(caps);
2087 exit_status = EXIT_SUCCESS;
2092 * If the standard error isn't a terminal, don't print packet counts,
2093 * as they won't show up on the user's terminal and they'll get in
2094 * the way of error messages in the file (to which we assume the
2095 * standard error was redirected; if it's redirected to the null
2096 * device, there's no point in printing packet counts anyway).
2098 * Otherwise, if we're printing packet information and the standard
2099 * output is a terminal (which we assume means the standard output and
2100 * error are going to the same terminal), don't print packet counts,
2101 * as they'll get in the way of the packet information.
2103 * Otherwise, if the user specified -q, don't print packet counts.
2105 * Otherwise, print packet counts.
2107 * XXX - what if the user wants to do a live capture, doesn't want
2108 * to save it to a file, doesn't want information printed for each
2109 * packet, does want some "-z" statistic, and wants packet counts
2110 * so they know whether they're seeing any packets? -q will
2111 * suppress the information printed for each packet, but it'll
2112 * also suppress the packet counts.
2114 if (!ws_isatty(ws_fileno(stderr)))
2115 print_packet_counts = FALSE;
2116 else if (print_packet_info && ws_isatty(ws_fileno(stdout)))
2117 print_packet_counts = FALSE;
2119 print_packet_counts = FALSE;
2121 print_packet_counts = TRUE;
2123 if (print_packet_info) {
2124 if (!write_preamble(&cfile)) {
2125 show_print_file_io_error(errno);
2126 exit_status = INVALID_FILE;
2131 tshark_debug("tshark: performing live capture");
2133 * XXX - this returns FALSE if an error occurred, but it also
2134 * returns FALSE if the capture stops because a time limit
2135 * was reached (and possibly other limits), so we can't assume
2136 * it means an error.
2138 * The capture code is a bit twisty, so it doesn't appear to
2139 * be an easy fix. We just ignore the return value for now.
2140 * Instead, pass on the exit status from the capture child.
2143 exit_status = global_capture_session.fork_child_status;
2145 if (print_packet_info) {
2146 if (!write_finale()) {
2147 show_print_file_io_error(errno);
2151 /* No - complain. */
2152 cmdarg_err("This version of TShark was not built with support for capturing packets.");
2153 exit_status = INVALID_CAPTURE;
2160 if (cfile.frames != NULL) {
2161 free_frame_data_sequence(cfile.frames);
2162 cfile.frames = NULL;
2165 draw_tap_listeners(TRUE);
2166 funnel_dump_all_text_windows();
2167 epan_free(cfile.epan);
2173 output_fields_free(output_fields);
2174 output_fields = NULL;
2177 destroy_print_stream(print_stream);
2179 capture_opts_cleanup(&global_capture_opts);
2181 col_cleanup(&cfile.cinfo);
2182 free_filter_lists();
2192 /*#define USE_BROKEN_G_MAIN_LOOP*/
2194 #ifdef USE_BROKEN_G_MAIN_LOOP
2197 gboolean loop_running = FALSE;
2199 guint32 packet_count = 0;
2202 typedef struct pipe_input_tag {
2205 ws_process_id *child_process;
2206 pipe_input_cb_t input_cb;
2207 guint pipe_input_id;
2209 GMutex *callback_running;
2213 static pipe_input_t pipe_input;
2216 /* The timer has expired, see if there's stuff to read from the pipe,
2217 if so, do the callback */
2219 pipe_timer_cb(gpointer data)
2225 pipe_input_t *pipe_input_p = data;
2226 gint iterations = 0;
2228 g_mutex_lock (pipe_input_p->callback_running);
2230 /* try to read data from the pipe only 5 times, to avoid blocking */
2231 while(iterations < 5) {
2232 /*g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_timer_cb: new iteration");*/
2234 /* Oddly enough although Named pipes don't work on win9x,
2235 PeekNamedPipe does !!! */
2236 handle = (HANDLE) _get_osfhandle (pipe_input_p->source);
2237 result = PeekNamedPipe(handle, NULL, 0, NULL, &avail, NULL);
2239 /* Get the child process exit status */
2240 GetExitCodeProcess((HANDLE)*(pipe_input_p->child_process),
2243 /* If the Peek returned an error, or there are bytes to be read
2244 or the childwatcher thread has terminated then call the normal
2246 if (!result || avail > 0 || childstatus != STILL_ACTIVE) {
2248 /*g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_timer_cb: data avail");*/
2250 /* And call the real handler */
2251 if (!pipe_input_p->input_cb(pipe_input_p->source, pipe_input_p->user_data)) {
2252 g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_timer_cb: input pipe closed, iterations: %u", iterations);
2253 /* pipe closed, return false so that the timer is stopped */
2254 g_mutex_unlock (pipe_input_p->callback_running);
2259 /*g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_timer_cb: no data avail");*/
2260 /* No data, stop now */
2267 /*g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_timer_cb: finished with iterations: %u, new timer", iterations);*/
2269 g_mutex_unlock (pipe_input_p->callback_running);
2271 /* we didn't stopped the timer, so let it run */
2278 pipe_input_set_handler(gint source, gpointer user_data, ws_process_id *child_process, pipe_input_cb_t input_cb)
2281 pipe_input.source = source;
2282 pipe_input.child_process = child_process;
2283 pipe_input.user_data = user_data;
2284 pipe_input.input_cb = input_cb;
2287 #if GLIB_CHECK_VERSION(2,31,0)
2288 pipe_input.callback_running = g_malloc(sizeof(GMutex));
2289 g_mutex_init(pipe_input.callback_running);
2291 pipe_input.callback_running = g_mutex_new();
2293 /* Tricky to use pipes in win9x, as no concept of wait. NT can
2294 do this but that doesn't cover all win32 platforms. GTK can do
2295 this but doesn't seem to work over processes. Attempt to do
2296 something similar here, start a timer and check for data on every
2298 /*g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_input_set_handler: new");*/
2299 pipe_input.pipe_input_id = g_timeout_add(200, pipe_timer_cb, &pipe_input);
2303 static const nstime_t *
2304 tshark_get_frame_ts(void *data, guint32 frame_num)
2306 capture_file *cf = (capture_file *) data;
2308 if (ref && ref->num == frame_num)
2309 return &ref->abs_ts;
2311 if (prev_dis && prev_dis->num == frame_num)
2312 return &prev_dis->abs_ts;
2314 if (prev_cap && prev_cap->num == frame_num)
2315 return &prev_cap->abs_ts;
2318 frame_data *fd = frame_data_sequence_find(cf->frames, frame_num);
2320 return (fd) ? &fd->abs_ts : NULL;
2327 tshark_epan_new(capture_file *cf)
2329 epan_t *epan = epan_new();
2332 epan->get_frame_ts = tshark_get_frame_ts;
2333 epan->get_interface_name = cap_file_get_interface_name;
2334 epan->get_interface_description = cap_file_get_interface_description;
2335 epan->get_user_comment = NULL;
2347 #ifdef USE_TSHARK_SELECT
2351 struct sigaction action, oldaction;
2354 /* Create new dissection section. */
2355 epan_free(cfile.epan);
2356 cfile.epan = tshark_epan_new(&cfile);
2359 /* Catch a CTRL+C event and, if we get it, clean up and exit. */
2360 SetConsoleCtrlHandler(capture_cleanup, TRUE);
2362 /* Catch SIGINT and SIGTERM and, if we get either of them,
2363 clean up and exit. If SIGHUP isn't being ignored, catch
2364 it too and, if we get it, clean up and exit.
2366 We restart any read that was in progress, so that it doesn't
2367 disrupt reading from the sync pipe. The signal handler tells
2368 the capture child to finish; it will report that it finished,
2369 or will exit abnormally, so we'll stop reading from the sync
2370 pipe, pick up the exit status, and quit. */
2371 memset(&action, 0, sizeof(action));
2372 action.sa_handler = capture_cleanup;
2373 action.sa_flags = SA_RESTART;
2374 sigemptyset(&action.sa_mask);
2375 sigaction(SIGTERM, &action, NULL);
2376 sigaction(SIGINT, &action, NULL);
2377 sigaction(SIGHUP, NULL, &oldaction);
2378 if (oldaction.sa_handler == SIG_DFL)
2379 sigaction(SIGHUP, &action, NULL);
2382 /* Catch SIGINFO and, if we get it and we're capturing to a file in
2383 quiet mode, report the number of packets we've captured.
2385 Again, restart any read that was in progress, so that it doesn't
2386 disrupt reading from the sync pipe. */
2387 action.sa_handler = report_counts_siginfo;
2388 action.sa_flags = SA_RESTART;
2389 sigemptyset(&action.sa_mask);
2390 sigaction(SIGINFO, &action, NULL);
2391 #endif /* SIGINFO */
2394 global_capture_session.state = CAPTURE_PREPARING;
2396 /* Let the user know which interfaces were chosen. */
2397 for (i = 0; i < global_capture_opts.ifaces->len; i++) {
2398 interface_options interface_opts;
2400 interface_opts = g_array_index(global_capture_opts.ifaces, interface_options, i);
2401 interface_opts.descr = get_interface_descriptive_name(interface_opts.name);
2402 global_capture_opts.ifaces = g_array_remove_index(global_capture_opts.ifaces, i);
2403 g_array_insert_val(global_capture_opts.ifaces, i, interface_opts);
2405 str = get_iface_list_string(&global_capture_opts, IFLIST_QUOTE_IF_DESCRIPTION);
2406 if (really_quiet == FALSE)
2407 fprintf(stderr, "Capturing on %s\n", str->str);
2409 g_string_free(str, TRUE);
2411 ret = sync_pipe_start(&global_capture_opts, &global_capture_session, &global_info_data, NULL);
2416 /* the actual capture loop
2418 * XXX - glib doesn't seem to provide any event based loop handling.
2420 * XXX - for whatever reason,
2421 * calling g_main_loop_new() ends up in 100% cpu load.
2423 * But that doesn't matter: in UNIX we can use select() to find an input
2424 * source with something to do.
2426 * But that doesn't matter because we're in a CLI (that doesn't need to
2427 * update a GUI or something at the same time) so it's OK if we block
2428 * trying to read from the pipe.
2430 * So all the stuff in USE_TSHARK_SELECT could be removed unless I'm
2431 * wrong (but I leave it there in case I am...).
2434 #ifdef USE_TSHARK_SELECT
2436 FD_SET(pipe_input.source, &readfds);
2439 loop_running = TRUE;
2443 while (loop_running)
2445 #ifdef USE_TSHARK_SELECT
2446 ret = select(pipe_input.source+1, &readfds, NULL, NULL, NULL);
2450 fprintf(stderr, "%s: %s\n", "select()", g_strerror(errno));
2452 } else if (ret == 1) {
2454 /* Call the real handler */
2455 if (!pipe_input.input_cb(pipe_input.source, pipe_input.user_data)) {
2456 g_log(NULL, G_LOG_LEVEL_DEBUG, "input pipe closed");
2459 #ifdef USE_TSHARK_SELECT
2464 CATCH(OutOfMemoryError) {
2468 "Sorry, but TShark has to terminate now.\n"
2470 "More information and workarounds can be found at\n"
2471 "https://wiki.wireshark.org/KnownBugs/OutOfMemory\n");
2478 /* capture child detected an error */
2480 capture_input_error_message(capture_session *cap_session _U_, char *error_msg, char *secondary_error_msg)
2482 cmdarg_err("%s", error_msg);
2483 cmdarg_err_cont("%s", secondary_error_msg);
2487 /* capture child detected an capture filter related error */
2489 capture_input_cfilter_error_message(capture_session *cap_session, guint i, char *error_message)
2491 capture_options *capture_opts = cap_session->capture_opts;
2492 dfilter_t *rfcode = NULL;
2493 interface_options interface_opts;
2495 g_assert(i < capture_opts->ifaces->len);
2496 interface_opts = g_array_index(capture_opts->ifaces, interface_options, i);
2498 if (dfilter_compile(interface_opts.cfilter, &rfcode, NULL) && rfcode != NULL) {
2500 "Invalid capture filter \"%s\" for interface '%s'.\n"
2502 "That string looks like a valid display filter; however, it isn't a valid\n"
2503 "capture filter (%s).\n"
2505 "Note that display filters and capture filters don't have the same syntax,\n"
2506 "so you can't use most display filter expressions as capture filters.\n"
2508 "See the User's Guide for a description of the capture filter syntax.",
2509 interface_opts.cfilter, interface_opts.descr, error_message);
2510 dfilter_free(rfcode);
2513 "Invalid capture filter \"%s\" for interface '%s'.\n"
2515 "That string isn't a valid capture filter (%s).\n"
2516 "See the User's Guide for a description of the capture filter syntax.",
2517 interface_opts.cfilter, interface_opts.descr, error_message);
2522 /* capture child tells us we have a new (or the first) capture file */
2524 capture_input_new_file(capture_session *cap_session, gchar *new_file)
2526 capture_options *capture_opts = cap_session->capture_opts;
2527 capture_file *cf = (capture_file *) cap_session->cf;
2528 gboolean is_tempfile;
2531 if (cap_session->state == CAPTURE_PREPARING) {
2532 g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_MESSAGE, "Capture started.");
2534 g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_MESSAGE, "File: \"%s\"", new_file);
2536 g_assert(cap_session->state == CAPTURE_PREPARING || cap_session->state == CAPTURE_RUNNING);
2538 /* free the old filename */
2539 if (capture_opts->save_file != NULL) {
2541 /* we start a new capture file, close the old one (if we had one before) */
2542 if (cf->state != FILE_CLOSED) {
2543 if (cf->wth != NULL) {
2544 wtap_close(cf->wth);
2547 cf->state = FILE_CLOSED;
2550 g_free(capture_opts->save_file);
2551 is_tempfile = FALSE;
2553 epan_free(cf->epan);
2554 cf->epan = tshark_epan_new(cf);
2556 /* we didn't had a save_file before, must be a tempfile */
2560 /* save the new filename */
2561 capture_opts->save_file = g_strdup(new_file);
2563 /* if we are in real-time mode, open the new file now */
2564 if (do_dissection) {
2565 /* this is probably unecessary, but better safe than sorry */
2566 ((capture_file *)cap_session->cf)->open_type = WTAP_TYPE_AUTO;
2567 /* Attempt to open the capture file and set up to read from it. */
2568 switch(cf_open((capture_file *)cap_session->cf, capture_opts->save_file, WTAP_TYPE_AUTO, is_tempfile, &err)) {
2572 /* Don't unlink (delete) the save file - leave it around,
2573 for debugging purposes. */
2574 g_free(capture_opts->save_file);
2575 capture_opts->save_file = NULL;
2580 cap_session->state = CAPTURE_RUNNING;
2586 /* capture child tells us we have new packets to read */
2588 capture_input_new_packets(capture_session *cap_session, int to_read)
2594 capture_file *cf = (capture_file *)cap_session->cf;
2595 gboolean filtering_tap_listeners;
2600 * Prevent a SIGINFO handler from writing to the standard error while
2601 * we're doing so or writing to the standard output; instead, have it
2602 * just set a flag telling us to print that information when we're done.
2605 #endif /* SIGINFO */
2607 /* Do we have any tap listeners with filters? */
2608 filtering_tap_listeners = have_filtering_tap_listeners();
2610 /* Get the union of the flags for all tap listeners. */
2611 tap_flags = union_of_tap_listener_flags();
2613 if (do_dissection) {
2614 gboolean create_proto_tree;
2615 epan_dissect_t *edt;
2618 * Determine whether we need to create a protocol tree.
2621 * we're going to apply a read filter;
2623 * we're going to apply a display filter;
2625 * we're going to print the protocol tree;
2627 * one of the tap listeners is going to apply a filter;
2629 * one of the tap listeners requires a protocol tree;
2631 * a postdissector wants field values or protocols
2632 * on the first pass;
2634 * we have custom columns (which require field values, which
2635 * currently requires that we build a protocol tree).
2638 (cf->rfcode || cf->dfcode || print_details || filtering_tap_listeners ||
2639 (tap_flags & TL_REQUIRES_PROTO_TREE) || postdissectors_want_hfids() ||
2640 have_custom_cols(&cf->cinfo) || dissect_color);
2642 /* The protocol tree will be "visible", i.e., printed, only if we're
2643 printing packet details, which is true if we're printing stuff
2644 ("print_packet_info" is true) and we're in verbose mode
2645 ("packet_details" is true). */
2646 edt = epan_dissect_new(cf->epan, create_proto_tree, print_packet_info && print_details);
2648 while (to_read-- && cf->wth) {
2649 wtap_cleareof(cf->wth);
2650 ret = wtap_read(cf->wth, &err, &err_info, &data_offset);
2651 reset_epan_mem(cf, edt, create_proto_tree, print_packet_info && print_details);
2653 /* read from file failed, tell the capture child to stop */
2654 sync_pipe_stop(cap_session);
2655 wtap_close(cf->wth);
2658 ret = process_packet_single_pass(cf, edt, data_offset,
2660 wtap_buf_ptr(cf->wth), tap_flags);
2663 /* packet successfully read and gone through the "Read Filter" */
2668 epan_dissect_free(edt);
2672 * Dumpcap's doing all the work; we're not doing any dissection.
2673 * Count all the packets it wrote.
2675 packet_count += to_read;
2678 if (print_packet_counts) {
2679 /* We're printing packet counts. */
2680 if (packet_count != 0) {
2681 fprintf(stderr, "\r%u ", packet_count);
2682 /* stderr could be line buffered */
2689 * Allow SIGINFO handlers to write.
2694 * If a SIGINFO handler asked us to write out capture counts, do so.
2698 #endif /* SIGINFO */
2704 if ((print_packet_counts == FALSE) && (really_quiet == FALSE)) {
2705 /* Report the count only if we aren't printing a packet count
2706 as packets arrive. */
2707 fprintf(stderr, "%u packet%s captured\n", packet_count,
2708 plurality(packet_count, "", "s"));
2711 infoprint = FALSE; /* we just reported it */
2712 #endif /* SIGINFO */
2717 report_counts_siginfo(int signum _U_)
2719 int sav_errno = errno;
2720 /* If we've been told to delay printing, just set a flag asking
2721 that we print counts (if we're supposed to), otherwise print
2722 the count of packets captured (if we're supposed to). */
2729 #endif /* SIGINFO */
2732 /* capture child detected any packet drops? */
2734 capture_input_drops(capture_session *cap_session _U_, guint32 dropped)
2736 if (print_packet_counts) {
2737 /* We're printing packet counts to stderr.
2738 Send a newline so that we move to the line after the packet count. */
2739 fprintf(stderr, "\n");
2743 /* We're printing packet counts to stderr.
2744 Send a newline so that we move to the line after the packet count. */
2745 fprintf(stderr, "%u packet%s dropped\n", dropped, plurality(dropped, "", "s"));
2751 * Capture child closed its side of the pipe, report any error and
2752 * do the required cleanup.
2755 capture_input_closed(capture_session *cap_session, gchar *msg)
2757 capture_file *cf = (capture_file *) cap_session->cf;
2760 fprintf(stderr, "tshark: %s\n", msg);
2764 if (cf != NULL && cf->wth != NULL) {
2765 wtap_close(cf->wth);
2766 if (cf->is_tempfile) {
2767 ws_unlink(cf->filename);
2770 #ifdef USE_BROKEN_G_MAIN_LOOP
2771 /*g_main_loop_quit(loop);*/
2772 g_main_loop_quit(loop);
2774 loop_running = FALSE;
2783 capture_cleanup(DWORD ctrltype _U_)
2785 /* CTRL_C_EVENT is sort of like SIGINT, CTRL_BREAK_EVENT is unique to
2786 Windows, CTRL_CLOSE_EVENT is sort of like SIGHUP, CTRL_LOGOFF_EVENT
2787 is also sort of like SIGHUP, and CTRL_SHUTDOWN_EVENT is sort of
2788 like SIGTERM at least when the machine's shutting down.
2790 For now, we handle them all as indications that we should clean up
2791 and quit, just as we handle SIGINT, SIGHUP, and SIGTERM in that
2794 We must return TRUE so that no other handler - such as one that would
2795 terminate the process - gets called.
2797 XXX - for some reason, typing ^C to TShark, if you run this in
2798 a Cygwin console window in at least some versions of Cygwin,
2799 causes TShark to terminate immediately; this routine gets
2800 called, but the main loop doesn't get a chance to run and
2801 exit cleanly, at least if this is compiled with Microsoft Visual
2802 C++ (i.e., it's a property of the Cygwin console window or Bash;
2803 it happens if TShark is not built with Cygwin - for all I know,
2804 building it with Cygwin may make the problem go away). */
2806 /* tell the capture child to stop */
2807 sync_pipe_stop(&global_capture_session);
2809 /* don't stop our own loop already here, otherwise status messages and
2810 * cleanup wouldn't be done properly. The child will indicate the stop of
2811 * everything by calling capture_input_closed() later */
2817 capture_cleanup(int signum _U_)
2819 /* tell the capture child to stop */
2820 sync_pipe_stop(&global_capture_session);
2822 /* don't stop our own loop already here, otherwise status messages and
2823 * cleanup wouldn't be done properly. The child will indicate the stop of
2824 * everything by calling capture_input_closed() later */
2827 #endif /* HAVE_LIBPCAP */
2830 process_packet_first_pass(capture_file *cf, epan_dissect_t *edt,
2831 gint64 offset, struct wtap_pkthdr *whdr,
2838 /* The frame number of this packet is one more than the count of
2839 frames in this packet. */
2840 framenum = cf->count + 1;
2842 /* If we're not running a display filter and we're not printing any
2843 packet information, we don't need to do a dissection. This means
2844 that all packets can be marked as 'passed'. */
2847 frame_data_init(&fdlocal, framenum, whdr, offset, cum_bytes);
2849 /* If we're going to run a read filter or a display filter, set up to
2850 do a dissection and do so. (This is the first pass of two passes
2851 over the packets, so we will not be printing any information
2852 from the dissection or running taps on the packet; if we're doing
2853 any of that, we'll do it in the second pass.) */
2855 if (gbl_resolv_flags.mac_name || gbl_resolv_flags.network_name ||
2856 gbl_resolv_flags.transport_name)
2857 /* Grab any resolved addresses */
2858 host_name_lookup_process();
2860 /* If we're running a read filter, prime the epan_dissect_t with that
2863 epan_dissect_prime_with_dfilter(edt, cf->rfcode);
2866 epan_dissect_prime_with_dfilter(edt, cf->dfcode);
2868 /* This is the first pass, so prime the epan_dissect_t with the
2869 hfids postdissectors want on the first pass. */
2870 prime_epan_dissect_with_postdissector_wanted_hfids(edt);
2872 frame_data_set_before_dissect(&fdlocal, &cf->elapsed_time,
2874 if (ref == &fdlocal) {
2875 ref_frame = fdlocal;
2879 epan_dissect_run(edt, cf->cd_t, whdr, frame_tvbuff_new(&fdlocal, pd), &fdlocal, NULL);
2881 /* Run the read filter if we have one. */
2883 passed = dfilter_apply_edt(cf->rfcode, edt);
2887 frame_data_set_after_dissect(&fdlocal, &cum_bytes);
2888 prev_cap = prev_dis = frame_data_sequence_add(cf->frames, &fdlocal);
2890 /* If we're not doing dissection then there won't be any dependent frames.
2891 * More importantly, edt.pi.dependent_frames won't be initialized because
2892 * epan hasn't been initialized.
2893 * if we *are* doing dissection, then mark the dependent frames, but only
2894 * if a display filter was given and it matches this packet.
2896 if (edt && cf->dfcode) {
2897 if (dfilter_apply_edt(cf->dfcode, edt)) {
2898 g_slist_foreach(edt->pi.dependent_frames, find_and_mark_frame_depended_upon, cf->frames);
2904 /* if we don't add it to the frame_data_sequence, clean it up right now
2906 frame_data_destroy(&fdlocal);
2910 epan_dissect_reset(edt);
2916 process_packet_second_pass(capture_file *cf, epan_dissect_t *edt,
2917 frame_data *fdata, struct wtap_pkthdr *phdr,
2918 Buffer *buf, guint tap_flags)
2923 /* If we're not running a display filter and we're not printing any
2924 packet information, we don't need to do a dissection. This means
2925 that all packets can be marked as 'passed'. */
2928 /* If we're going to print packet information, or we're going to
2929 run a read filter, or we're going to process taps, set up to
2930 do a dissection and do so. (This is the second pass of two
2931 passes over the packets; that's the pass where we print
2932 packet information or run taps.) */
2934 if (gbl_resolv_flags.mac_name || gbl_resolv_flags.network_name ||
2935 gbl_resolv_flags.transport_name)
2936 /* Grab any resolved addresses */
2937 host_name_lookup_process();
2939 /* If we're running a display filter, prime the epan_dissect_t with that
2942 epan_dissect_prime_with_dfilter(edt, cf->dfcode);
2944 col_custom_prime_edt(edt, &cf->cinfo);
2946 /* We only need the columns if either
2947 1) some tap needs the columns
2949 2) we're printing packet info but we're *not* verbose; in verbose
2950 mode, we print the protocol tree, not the protocol summary.
2952 if ((tap_flags & TL_REQUIRES_COLUMNS) || (print_packet_info && print_summary) || output_fields_has_cols(output_fields))
2957 frame_data_set_before_dissect(fdata, &cf->elapsed_time,
2964 if (dissect_color) {
2965 color_filters_prime_edt(edt);
2966 fdata->flags.need_colorize = 1;
2969 epan_dissect_run_with_taps(edt, cf->cd_t, phdr, frame_tvbuff_new_buffer(fdata, buf), fdata, cinfo);
2971 /* Run the read/display filter if we have one. */
2973 passed = dfilter_apply_edt(cf->dfcode, edt);
2977 frame_data_set_after_dissect(fdata, &cum_bytes);
2978 /* Process this packet. */
2979 if (print_packet_info) {
2980 /* We're printing packet information; print the information for
2982 print_packet(cf, edt);
2984 /* If we're doing "line-buffering", flush the standard output
2985 after every packet. See the comment above, for the "-l"
2986 option, for an explanation of why we do that. */
2990 if (ferror(stdout)) {
2991 show_print_file_io_error(errno);
3000 epan_dissect_reset(edt);
3002 return passed || fdata->flags.dependent_of_displayed;
3006 process_cap_file(capture_file *cf, char *save_file, int out_file_type,
3007 gboolean out_file_name_res, int max_packet_count, gint64 max_byte_count)
3009 gboolean success = TRUE;
3011 int snapshot_length;
3014 int err = 0, err_pass1 = 0;
3015 gchar *err_info = NULL, *err_info_pass1 = NULL;
3017 gboolean filtering_tap_listeners;
3019 GArray *shb_hdrs = NULL;
3020 wtapng_iface_descriptions_t *idb_inf = NULL;
3021 GArray *nrb_hdrs = NULL;
3022 struct wtap_pkthdr phdr;
3024 epan_dissect_t *edt = NULL;
3025 char *shb_user_appl;
3027 wtap_phdr_init(&phdr);
3029 idb_inf = wtap_file_get_idb_info(cf->wth);
3030 #ifdef PCAP_NG_DEFAULT
3031 if (idb_inf->interface_data->len > 1) {
3032 linktype = WTAP_ENCAP_PER_PACKET;
3034 linktype = wtap_file_encap(cf->wth);
3037 linktype = wtap_file_encap(cf->wth);
3039 if (save_file != NULL) {
3040 /* Set up to write to the capture file. */
3041 snapshot_length = wtap_snapshot_length(cf->wth);
3042 if (snapshot_length == 0) {
3043 /* Snapshot length of input file not known. */
3044 snapshot_length = WTAP_MAX_PACKET_SIZE_STANDARD;
3046 tshark_debug("tshark: snapshot_length = %d", snapshot_length);
3048 shb_hdrs = wtap_file_get_shb_for_new_file(cf->wth);
3049 nrb_hdrs = wtap_file_get_nrb_for_new_file(cf->wth);
3051 /* If we don't have an application name add Tshark */
3052 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) {
3053 /* this is free'd by wtap_block_free() later */
3054 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());
3057 if (linktype != WTAP_ENCAP_PER_PACKET &&
3058 out_file_type == WTAP_FILE_TYPE_SUBTYPE_PCAP) {
3059 tshark_debug("tshark: writing PCAP format to %s", save_file);
3060 if (strcmp(save_file, "-") == 0) {
3061 /* Write to the standard output. */
3062 pdh = wtap_dump_open_stdout(out_file_type, linktype,
3063 snapshot_length, FALSE /* compressed */, &err);
3065 pdh = wtap_dump_open(save_file, out_file_type, linktype,
3066 snapshot_length, FALSE /* compressed */, &err);
3070 tshark_debug("tshark: writing format type %d, to %s", out_file_type, save_file);
3071 if (strcmp(save_file, "-") == 0) {
3072 /* Write to the standard output. */
3073 pdh = wtap_dump_open_stdout_ng(out_file_type, linktype,
3074 snapshot_length, FALSE /* compressed */, shb_hdrs, idb_inf, nrb_hdrs, &err);
3076 pdh = wtap_dump_open_ng(save_file, out_file_type, linktype,
3077 snapshot_length, FALSE /* compressed */, shb_hdrs, idb_inf, nrb_hdrs, &err);
3085 /* We couldn't set up to write to the capture file. */
3086 cfile_dump_open_failure_message("TShark", save_file, err, out_file_type);
3091 /* Set up to print packet information. */
3092 if (print_packet_info) {
3093 if (!write_preamble(cf)) {
3094 show_print_file_io_error(errno);
3104 /* Do we have any tap listeners with filters? */
3105 filtering_tap_listeners = have_filtering_tap_listeners();
3107 /* Get the union of the flags for all tap listeners. */
3108 tap_flags = union_of_tap_listener_flags();
3110 if (perform_two_pass_analysis) {
3113 tshark_debug("tshark: perform_two_pass_analysis, do_dissection=%s", do_dissection ? "TRUE" : "FALSE");
3115 /* Allocate a frame_data_sequence for all the frames. */
3116 cf->frames = new_frame_data_sequence();
3118 if (do_dissection) {
3119 gboolean create_proto_tree;
3122 * Determine whether we need to create a protocol tree.
3125 * we're going to apply a read filter;
3127 * we're going to apply a display filter;
3129 * a postdissector wants field values or protocols
3130 * on the first pass.
3133 (cf->rfcode != NULL || cf->dfcode != NULL || postdissectors_want_hfids() || dissect_color);
3135 tshark_debug("tshark: create_proto_tree = %s", create_proto_tree ? "TRUE" : "FALSE");
3137 /* We're not going to display the protocol tree on this pass,
3138 so it's not going to be "visible". */
3139 edt = epan_dissect_new(cf->epan, create_proto_tree, FALSE);
3142 tshark_debug("tshark: reading records for first pass");
3143 while (wtap_read(cf->wth, &err, &err_info, &data_offset)) {
3144 if (process_packet_first_pass(cf, edt, data_offset, wtap_phdr(cf->wth),
3145 wtap_buf_ptr(cf->wth))) {
3146 /* Stop reading if we have the maximum number of packets;
3147 * When the -c option has not been used, max_packet_count
3148 * starts at 0, which practically means, never stop reading.
3149 * (unless we roll over max_packet_count ?)
3151 if ( (--max_packet_count == 0) || (max_byte_count != 0 && data_offset >= max_byte_count)) {
3152 tshark_debug("tshark: max_packet_count (%d) or max_byte_count (%" G_GINT64_MODIFIER "d/%" G_GINT64_MODIFIER "d) reached",
3153 max_packet_count, data_offset, max_byte_count);
3154 err = 0; /* This is not an error */
3161 * If we got a read error on the first pass, remember the error, so
3162 * but do the second pass, so we can at least process the packets we
3163 * read, and then report the first-pass error after the second pass
3164 * (and before we report any second-pass errors), so all the the
3165 * errors show up at the end.
3169 err_info_pass1 = err_info;
3175 epan_dissect_free(edt);
3179 /* Close the sequential I/O side, to free up memory it requires. */
3180 wtap_sequential_close(cf->wth);
3182 /* Allow the protocol dissectors to free up memory that they
3183 * don't need after the sequential run-through of the packets. */
3184 postseq_cleanup_all_protocols();
3188 ws_buffer_init(&buf, 1500);
3190 tshark_debug("tshark: done with first pass");
3192 if (do_dissection) {
3193 gboolean create_proto_tree;
3196 * Determine whether we need to create a protocol tree.
3199 * we're going to apply a display filter;
3201 * we're going to print the protocol tree;
3203 * one of the tap listeners requires a protocol tree;
3205 * we have custom columns (which require field values, which
3206 * currently requires that we build a protocol tree).
3209 (cf->dfcode || print_details || filtering_tap_listeners ||
3210 (tap_flags & TL_REQUIRES_PROTO_TREE) || have_custom_cols(&cf->cinfo) || dissect_color);
3212 tshark_debug("tshark: create_proto_tree = %s", create_proto_tree ? "TRUE" : "FALSE");
3214 /* The protocol tree will be "visible", i.e., printed, only if we're
3215 printing packet details, which is true if we're printing stuff
3216 ("print_packet_info" is true) and we're in verbose mode
3217 ("packet_details" is true). */
3218 edt = epan_dissect_new(cf->epan, create_proto_tree, print_packet_info && print_details);
3221 for (framenum = 1; err == 0 && framenum <= cf->count; framenum++) {
3222 fdata = frame_data_sequence_find(cf->frames, framenum);
3223 if (wtap_seek_read(cf->wth, fdata->file_off, &phdr, &buf, &err,
3225 tshark_debug("tshark: invoking process_packet_second_pass() for frame #%d", framenum);
3226 if (process_packet_second_pass(cf, edt, fdata, &phdr, &buf,
3228 /* Either there's no read filtering or this packet passed the
3229 filter, so, if we're writing to a capture file, write
3232 tshark_debug("tshark: writing packet #%d to outfile", framenum);
3233 if (!wtap_dump(pdh, &phdr, ws_buffer_start_ptr(&buf), &err, &err_info)) {
3234 /* Error writing to a capture file */
3235 tshark_debug("tshark: error writing to a capture file (%d)", err);
3237 /* Report the error.
3238 XXX - framenum is not necessarily the frame number in
3239 the input file if there was a read filter. */
3240 cfile_write_failure_message("TShark", cf->filename, save_file,
3241 err, err_info, framenum,
3243 wtap_dump_close(pdh, &err);
3244 wtap_block_array_free(shb_hdrs);
3245 wtap_block_array_free(nrb_hdrs);
3254 epan_dissect_free(edt);
3258 ws_buffer_free(&buf);
3260 tshark_debug("tshark: done with second pass");
3263 /* !perform_two_pass_analysis */
3265 gboolean create_proto_tree = FALSE;
3266 tshark_debug("tshark: perform one pass analysis, do_dissection=%s", do_dissection ? "TRUE" : "FALSE");
3268 if (do_dissection) {
3270 * Determine whether we need to create a protocol tree.
3273 * we're going to apply a read filter;
3275 * we're going to apply a display filter;
3277 * we're going to print the protocol tree;
3279 * one of the tap listeners is going to apply a filter;
3281 * one of the tap listeners requires a protocol tree;
3283 * a postdissector wants field values or protocols
3284 * on the first pass;
3286 * we have custom columns (which require field values, which
3287 * currently requires that we build a protocol tree).
3290 (cf->rfcode || cf->dfcode || print_details || filtering_tap_listeners ||
3291 (tap_flags & TL_REQUIRES_PROTO_TREE) || postdissectors_want_hfids() ||
3292 have_custom_cols(&cf->cinfo) || dissect_color);
3294 tshark_debug("tshark: create_proto_tree = %s", create_proto_tree ? "TRUE" : "FALSE");
3296 /* The protocol tree will be "visible", i.e., printed, only if we're
3297 printing packet details, which is true if we're printing stuff
3298 ("print_packet_info" is true) and we're in verbose mode
3299 ("packet_details" is true). */
3300 edt = epan_dissect_new(cf->epan, create_proto_tree, print_packet_info && print_details);
3303 while (wtap_read(cf->wth, &err, &err_info, &data_offset)) {
3306 tshark_debug("tshark: processing packet #%d", framenum);
3308 reset_epan_mem(cf, edt, create_proto_tree, print_packet_info && print_details);
3310 if (process_packet_single_pass(cf, edt, data_offset, wtap_phdr(cf->wth),
3311 wtap_buf_ptr(cf->wth), tap_flags)) {
3312 /* Either there's no read filtering or this packet passed the
3313 filter, so, if we're writing to a capture file, write
3316 tshark_debug("tshark: writing packet #%d to outfile", framenum);
3317 if (!wtap_dump(pdh, wtap_phdr(cf->wth), wtap_buf_ptr(cf->wth), &err, &err_info)) {
3318 /* Error writing to a capture file */
3319 tshark_debug("tshark: error writing to a capture file (%d)", err);
3320 cfile_write_failure_message("TShark", cf->filename, save_file,
3321 err, err_info, framenum, out_file_type);
3322 wtap_dump_close(pdh, &err);
3323 wtap_block_array_free(shb_hdrs);
3324 wtap_block_array_free(nrb_hdrs);
3329 /* Stop reading if we have the maximum number of packets;
3330 * When the -c option has not been used, max_packet_count
3331 * starts at 0, which practically means, never stop reading.
3332 * (unless we roll over max_packet_count ?)
3334 if ( (--max_packet_count == 0) || (max_byte_count != 0 && data_offset >= max_byte_count)) {
3335 tshark_debug("tshark: max_packet_count (%d) or max_byte_count (%" G_GINT64_MODIFIER "d/%" G_GINT64_MODIFIER "d) reached",
3336 max_packet_count, data_offset, max_byte_count);
3337 err = 0; /* This is not an error */
3343 epan_dissect_free(edt);
3348 wtap_phdr_cleanup(&phdr);
3350 if (err != 0 || err_pass1 != 0) {
3351 tshark_debug("tshark: something failed along the line (%d)", err);
3353 * Print a message noting that the read failed somewhere along the line.
3355 * If we're printing packet data, and the standard output and error are
3356 * going to the same place, flush the standard output, so everything
3357 * buffered up is written, and then print a newline to the standard error
3358 * before printing the error message, to separate it from the packet
3359 * data. (Alas, that only works on UN*X; st_dev is meaningless, and
3360 * the _fstat() documentation at Microsoft doesn't indicate whether
3361 * st_ino is even supported.)
3364 if (print_packet_info) {
3365 ws_statb64 stat_stdout, stat_stderr;
3367 if (ws_fstat64(1, &stat_stdout) == 0 && ws_fstat64(2, &stat_stderr) == 0) {
3368 if (stat_stdout.st_dev == stat_stderr.st_dev &&
3369 stat_stdout.st_ino == stat_stderr.st_ino) {
3371 fprintf(stderr, "\n");
3376 if (err_pass1 != 0) {
3377 /* Error on pass 1 of two-pass processing. */
3378 cfile_read_failure_message("TShark", cf->filename, err_pass1,
3382 /* Error on pass 2 of two-pass processing or on the only pass of
3383 one-pass processing. */
3384 cfile_read_failure_message("TShark", cf->filename, err, err_info);
3388 if (save_file != NULL) {
3389 if (pdh && out_file_name_res) {
3390 if (!wtap_dump_set_addrinfo_list(pdh, get_addrinfo_list())) {
3391 cmdarg_err("The file format \"%s\" doesn't support name resolution information.",
3392 wtap_file_type_subtype_short_string(out_file_type));
3395 /* Now close the capture file. */
3396 if (!wtap_dump_close(pdh, &err)) {
3397 cfile_close_failure_message(save_file, err);
3401 if (print_packet_info) {
3402 if (!write_finale()) {
3403 show_print_file_io_error(errno);
3410 wtap_close(cf->wth);
3413 wtap_block_array_free(shb_hdrs);
3414 wtap_block_array_free(nrb_hdrs);
3420 process_packet_single_pass(capture_file *cf, epan_dissect_t *edt, gint64 offset,
3421 struct wtap_pkthdr *whdr, const guchar *pd,
3428 /* Count this packet. */
3431 /* If we're not running a display filter and we're not printing any
3432 packet information, we don't need to do a dissection. This means
3433 that all packets can be marked as 'passed'. */
3436 frame_data_init(&fdata, cf->count, whdr, offset, cum_bytes);
3438 /* If we're going to print packet information, or we're going to
3439 run a read filter, or we're going to process taps, set up to
3440 do a dissection and do so. (This is the one and only pass
3441 over the packets, so, if we'll be printing packet information
3442 or running taps, we'll be doing it here.) */
3444 if (print_packet_info && (gbl_resolv_flags.mac_name || gbl_resolv_flags.network_name ||
3445 gbl_resolv_flags.transport_name))
3446 /* Grab any resolved addresses */
3447 host_name_lookup_process();
3449 /* If we're running a filter, prime the epan_dissect_t with that
3452 epan_dissect_prime_with_dfilter(edt, cf->dfcode);
3454 /* This is the first and only pass, so prime the epan_dissect_t
3455 with the hfids postdissectors want on the first pass. */
3456 prime_epan_dissect_with_postdissector_wanted_hfids(edt);
3458 col_custom_prime_edt(edt, &cf->cinfo);
3460 /* We only need the columns if either
3461 1) some tap needs the columns
3463 2) we're printing packet info but we're *not* verbose; in verbose
3464 mode, we print the protocol tree, not the protocol summary.
3466 3) there is a column mapped as an individual field */
3467 if ((tap_flags & TL_REQUIRES_COLUMNS) || (print_packet_info && print_summary) || output_fields_has_cols(output_fields))
3472 frame_data_set_before_dissect(&fdata, &cf->elapsed_time,
3474 if (ref == &fdata) {
3479 if (dissect_color) {
3480 color_filters_prime_edt(edt);
3481 fdata.flags.need_colorize = 1;
3484 epan_dissect_run_with_taps(edt, cf->cd_t, whdr, frame_tvbuff_new(&fdata, pd), &fdata, cinfo);
3486 /* Run the filter if we have it. */
3488 passed = dfilter_apply_edt(cf->dfcode, edt);
3492 frame_data_set_after_dissect(&fdata, &cum_bytes);
3494 /* Process this packet. */
3495 if (print_packet_info) {
3496 /* We're printing packet information; print the information for
3498 print_packet(cf, edt);
3500 /* If we're doing "line-buffering", flush the standard output
3501 after every packet. See the comment above, for the "-l"
3502 option, for an explanation of why we do that. */
3506 if (ferror(stdout)) {
3507 show_print_file_io_error(errno);
3512 /* this must be set after print_packet() [bug #8160] */
3513 prev_dis_frame = fdata;
3514 prev_dis = &prev_dis_frame;
3517 prev_cap_frame = fdata;
3518 prev_cap = &prev_cap_frame;
3521 epan_dissect_reset(edt);
3522 frame_data_destroy(&fdata);
3528 write_preamble(capture_file *cf)
3530 switch (output_action) {
3533 return print_preamble(print_stream, cf->filename, get_ws_vcs_version_info());
3537 write_pdml_preamble(stdout, cf->filename);
3539 write_psml_preamble(&cf->cinfo, stdout);
3540 return !ferror(stdout);
3543 write_fields_preamble(output_fields, stdout);
3544 return !ferror(stdout);
3547 case WRITE_JSON_RAW:
3548 write_json_preamble(stdout);
3549 return !ferror(stdout);
3552 return !ferror(stdout);
3555 g_assert_not_reached();
3561 get_line_buf(size_t len)
3563 static char *line_bufp = NULL;
3564 static size_t line_buf_len = 256;
3565 size_t new_line_buf_len;
3567 for (new_line_buf_len = line_buf_len; len > new_line_buf_len;
3568 new_line_buf_len *= 2)
3570 if (line_bufp == NULL) {
3571 line_buf_len = new_line_buf_len;
3572 line_bufp = (char *)g_malloc(line_buf_len + 1);
3574 if (new_line_buf_len > line_buf_len) {
3575 line_buf_len = new_line_buf_len;
3576 line_bufp = (char *)g_realloc(line_bufp, line_buf_len + 1);
3583 put_string(char *dest, const char *str, size_t str_len)
3585 memcpy(dest, str, str_len);
3586 dest[str_len] = '\0';
3590 put_spaces_string(char *dest, const char *str, size_t str_len, size_t str_with_spaces)
3594 for (i = str_len; i < str_with_spaces; i++)
3597 put_string(dest, str, str_len);
3601 put_string_spaces(char *dest, const char *str, size_t str_len, size_t str_with_spaces)
3605 memcpy(dest, str, str_len);
3606 for (i = str_len; i < str_with_spaces; i++)
3609 dest[str_with_spaces] = '\0';
3613 print_columns(capture_file *cf, const epan_dissect_t *edt)
3620 col_item_t* col_item;
3621 gchar str_format[11];
3622 const color_filter_t *color_filter = NULL;
3624 line_bufp = get_line_buf(256);
3629 color_filter = edt->pi.fd->color_filter;
3631 for (i = 0; i < cf->cinfo.num_cols; i++) {
3632 col_item = &cf->cinfo.columns[i];
3633 /* Skip columns not marked as visible. */
3634 if (!get_column_visible(i))
3636 switch (col_item->col_fmt) {
3638 column_len = col_len = strlen(col_item->col_data);
3641 line_bufp = get_line_buf(buf_offset + column_len);
3642 put_spaces_string(line_bufp + buf_offset, col_item->col_data, col_len, column_len);
3648 case COL_ABS_YMD_TIME: /* XXX - wider */
3649 case COL_ABS_YDOY_TIME: /* XXX - wider */
3651 case COL_UTC_YMD_TIME: /* XXX - wider */
3652 case COL_UTC_YDOY_TIME: /* XXX - wider */
3653 column_len = col_len = strlen(col_item->col_data);
3654 if (column_len < 10)
3656 line_bufp = get_line_buf(buf_offset + column_len);
3657 put_spaces_string(line_bufp + buf_offset, col_item->col_data, col_len, column_len);
3663 case COL_DEF_DL_SRC:
3664 case COL_RES_DL_SRC:
3665 case COL_UNRES_DL_SRC:
3666 case COL_DEF_NET_SRC:
3667 case COL_RES_NET_SRC:
3668 case COL_UNRES_NET_SRC:
3669 column_len = col_len = strlen(col_item->col_data);
3670 if (column_len < 12)
3672 line_bufp = get_line_buf(buf_offset + column_len);
3673 put_spaces_string(line_bufp + buf_offset, col_item->col_data, col_len, column_len);
3679 case COL_DEF_DL_DST:
3680 case COL_RES_DL_DST:
3681 case COL_UNRES_DL_DST:
3682 case COL_DEF_NET_DST:
3683 case COL_RES_NET_DST:
3684 case COL_UNRES_NET_DST:
3685 column_len = col_len = strlen(col_item->col_data);
3686 if (column_len < 12)
3688 line_bufp = get_line_buf(buf_offset + column_len);
3689 put_string_spaces(line_bufp + buf_offset, col_item->col_data, col_len, column_len);
3693 column_len = strlen(col_item->col_data);
3694 line_bufp = get_line_buf(buf_offset + column_len);
3695 put_string(line_bufp + buf_offset, col_item->col_data, column_len);
3698 buf_offset += column_len;
3699 if (i != cf->cinfo.num_cols - 1) {
3701 * This isn't the last column, so we need to print a
3702 * separator between this column and the next.
3704 * If we printed a network source and are printing a
3705 * network destination of the same type next, separate
3706 * them with a UTF-8 right arrow; if we printed a network
3707 * destination and are printing a network source of the same
3708 * type next, separate them with a UTF-8 left arrow;
3709 * otherwise separate them with a space.
3711 * We add enough space to the buffer for " \xe2\x86\x90 "
3712 * or " \xe2\x86\x92 ", even if we're only adding " ".
3714 line_bufp = get_line_buf(buf_offset + 5);
3715 switch (col_item->col_fmt) {
3720 switch (cf->cinfo.columns[i+1].col_fmt) {
3725 g_snprintf(str_format, sizeof(str_format), " %s%s", UTF8_RIGHTWARDS_ARROW, delimiter_char);
3726 put_string(line_bufp + buf_offset, str_format, 5);
3731 put_string(line_bufp + buf_offset, delimiter_char, 1);
3737 case COL_DEF_DL_SRC:
3738 case COL_RES_DL_SRC:
3739 case COL_UNRES_DL_SRC:
3740 switch (cf->cinfo.columns[i+1].col_fmt) {
3742 case COL_DEF_DL_DST:
3743 case COL_RES_DL_DST:
3744 case COL_UNRES_DL_DST:
3745 g_snprintf(str_format, sizeof(str_format), " %s%s", UTF8_RIGHTWARDS_ARROW, delimiter_char);
3746 put_string(line_bufp + buf_offset, str_format, 5);
3751 put_string(line_bufp + buf_offset, delimiter_char, 1);
3757 case COL_DEF_NET_SRC:
3758 case COL_RES_NET_SRC:
3759 case COL_UNRES_NET_SRC:
3760 switch (cf->cinfo.columns[i+1].col_fmt) {
3762 case COL_DEF_NET_DST:
3763 case COL_RES_NET_DST:
3764 case COL_UNRES_NET_DST:
3765 g_snprintf(str_format, sizeof(str_format), " %s%s", UTF8_RIGHTWARDS_ARROW, delimiter_char);
3766 put_string(line_bufp + buf_offset, str_format, 5);
3771 put_string(line_bufp + buf_offset, delimiter_char, 1);
3780 switch (cf->cinfo.columns[i+1].col_fmt) {
3785 g_snprintf(str_format, sizeof(str_format), " %s%s", UTF8_LEFTWARDS_ARROW, delimiter_char);
3786 put_string(line_bufp + buf_offset, str_format, 5);
3791 put_string(line_bufp + buf_offset, delimiter_char, 1);
3797 case COL_DEF_DL_DST:
3798 case COL_RES_DL_DST:
3799 case COL_UNRES_DL_DST:
3800 switch (cf->cinfo.columns[i+1].col_fmt) {
3802 case COL_DEF_DL_SRC:
3803 case COL_RES_DL_SRC:
3804 case COL_UNRES_DL_SRC:
3805 g_snprintf(str_format, sizeof(str_format), " %s%s", UTF8_LEFTWARDS_ARROW, delimiter_char);
3806 put_string(line_bufp + buf_offset, str_format, 5);
3811 put_string(line_bufp + buf_offset, delimiter_char, 1);
3817 case COL_DEF_NET_DST:
3818 case COL_RES_NET_DST:
3819 case COL_UNRES_NET_DST:
3820 switch (cf->cinfo.columns[i+1].col_fmt) {
3822 case COL_DEF_NET_SRC:
3823 case COL_RES_NET_SRC:
3824 case COL_UNRES_NET_SRC:
3825 g_snprintf(str_format, sizeof(str_format), " %s%s", UTF8_LEFTWARDS_ARROW, delimiter_char);
3826 put_string(line_bufp + buf_offset, str_format, 5);
3831 put_string(line_bufp + buf_offset, delimiter_char, 1);
3838 put_string(line_bufp + buf_offset, delimiter_char, 1);
3845 if (dissect_color && color_filter != NULL)
3846 return print_line_color(print_stream, 0, line_bufp, &color_filter->fg_color, &color_filter->bg_color);
3848 return print_line(print_stream, 0, line_bufp);
3852 print_packet(capture_file *cf, epan_dissect_t *edt)
3854 if (print_summary || output_fields_has_cols(output_fields)) {
3855 /* Just fill in the columns. */
3856 epan_dissect_fill_in_columns(edt, FALSE, TRUE);
3858 if (print_summary) {
3859 /* Now print them. */
3860 switch (output_action) {
3863 if (!print_columns(cf, edt))
3868 write_psml_columns(edt, stdout, dissect_color);
3869 return !ferror(stdout);
3870 case WRITE_FIELDS: /*No non-verbose "fields" format */
3873 case WRITE_JSON_RAW:
3874 g_assert_not_reached();
3879 if (print_details) {
3880 /* Print the information in the protocol tree. */
3881 switch (output_action) {
3884 if (!proto_tree_print(print_details ? print_dissections_expanded : print_dissections_none,
3885 print_hex, edt, output_only_tables, print_stream))
3888 if (!print_line(print_stream, 0, separator))
3894 write_pdml_proto_tree(output_fields, protocolfilter, protocolfilter_flags, edt, stdout, dissect_color);
3896 return !ferror(stdout);
3898 write_fields_proto_tree(output_fields, edt, &cf->cinfo, stdout);
3900 return !ferror(stdout);
3902 write_json_proto_tree(output_fields, print_dissections_expanded,
3903 print_hex, protocolfilter, protocolfilter_flags,
3905 return !ferror(stdout);
3906 case WRITE_JSON_RAW:
3907 write_json_proto_tree(output_fields, print_dissections_none, TRUE,
3908 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: