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 * SPDX-License-Identifier: GPL-2.0-or-later
28 # include <winsock2.h>
36 # include <sys/capability.h>
39 #ifndef HAVE_GETOPT_LONG
40 #include "wsutil/wsgetopt.h"
45 #include <epan/exceptions.h>
46 #include <epan/epan.h>
48 #include <wsutil/clopts_common.h>
49 #include <wsutil/cmdarg_err.h>
50 #include <wsutil/crash_info.h>
51 #include <wsutil/filesystem.h>
52 #include <wsutil/file_util.h>
53 #include <wsutil/privileges.h>
54 #include <wsutil/report_message.h>
55 #include <version_info.h>
56 #include <wiretap/wtap_opttypes.h>
57 #include <wiretap/pcapng.h>
60 #include <epan/timestamp.h>
61 #include <epan/packet.h>
63 #include <epan/wslua/init_wslua.h>
65 #include "frame_tvbuff.h"
66 #include <epan/disabled_protos.h>
67 #include <epan/prefs.h>
68 #include <epan/column.h>
69 #include <epan/decode_as.h>
70 #include <epan/print.h>
71 #include <epan/addr_resolv.h>
73 #include "ui/capture_ui_utils.h"
77 #include "ui/ws_ui_util.h"
78 #include "ui/decode_as_utils.h"
79 #include "ui/filter_files.h"
80 #include "ui/cli/tshark-tap.h"
81 #include "ui/cli/tap-exportobject.h"
82 #include "ui/tap_export_pdu.h"
83 #include "ui/dissect_opts.h"
84 #include "ui/failure_message.h"
85 #if defined(HAVE_LIBSMI)
86 #include "epan/oids.h"
88 #if defined(HAVE_GEOIP)
89 #include "epan/geoip_db.h"
91 #include "epan/register.h"
92 #include <epan/epan_dissect.h>
94 #include <epan/stat_tap_ui.h>
95 #include <epan/conversation_table.h>
96 #include <epan/srt_table.h>
97 #include <epan/rtd_table.h>
98 #include <epan/ex-opt.h>
99 #include <epan/exported_pdu.h>
101 #include "capture_opts.h"
103 #include "caputils/capture-pcap-util.h"
106 #include "caputils/capture_ifinfo.h"
108 #include "caputils/capture-wpcap.h"
109 #include <wsutil/os_version_info.h>
110 #include <wsutil/unicode-utils.h>
112 #include <capchild/capture_session.h>
113 #include <capchild/capture_sync.h>
114 #include <capture_info.h>
115 #endif /* HAVE_LIBPCAP */
117 #include <epan/funnel.h>
119 #include <wsutil/str_util.h>
120 #include <wsutil/utf8_entities.h>
125 #include <wsutil/plugins.h>
129 #define INVALID_OPTION 1
130 #define INVALID_INTERFACE 2
131 #define INVALID_FILE 2
132 #define INVALID_FILTER 2
133 #define INVALID_EXPORT 2
134 #define INVALID_CAPABILITY 2
135 #define INVALID_TAP 2
136 #define INVALID_DATA_LINK 2
137 #define INVALID_TIMESTAMP_TYPE 2
138 #define INVALID_CAPTURE 2
139 #define INIT_FAILED 2
142 * values 128..65535 are capture+dissect options, 65536 is used by
143 * ui/commandline.c, so start tshark-specific options 1000 after this
145 #define LONGOPT_COLOR (65536+1000)
146 #define LONGOPT_NO_DUPLICATE_KEYS (65536+1001)
149 #define tshark_debug(...) g_warning(__VA_ARGS__)
151 #define tshark_debug(...)
156 static guint32 cum_bytes;
157 static frame_data ref_frame;
158 static frame_data prev_dis_frame;
159 static frame_data prev_cap_frame;
161 static gboolean perform_two_pass_analysis;
162 static guint32 epan_auto_reset_count = 0;
163 static gboolean epan_auto_reset = FALSE;
166 * The way the packet decode is to be written.
169 WRITE_TEXT, /* summary or detail text */
170 WRITE_XML, /* PDML or PSML */
171 WRITE_FIELDS, /* User defined list of fields */
172 WRITE_JSON, /* JSON */
173 WRITE_JSON_RAW, /* JSON only raw hex */
174 WRITE_EK /* JSON bulk insert to Elasticsearch */
175 /* Add CSV and the like here */
178 static output_action_e output_action;
179 static gboolean do_dissection; /* TRUE if we have to dissect each packet */
180 static gboolean print_packet_info; /* TRUE if we're to print packet information */
181 static gboolean print_summary; /* TRUE if we're to print packet summary information */
182 static gboolean print_details; /* TRUE if we're to print packet details information */
183 static gboolean print_hex; /* TRUE if we're to print hex/ascci information */
184 static gboolean line_buffered;
185 static gboolean really_quiet = FALSE;
186 static gchar* delimiter_char = " ";
187 static gboolean dissect_color = FALSE;
189 static print_format_e print_format = PR_FMT_TEXT;
190 static print_stream_t *print_stream = NULL;
192 static output_fields_t* output_fields = NULL;
193 static gchar **protocolfilter = NULL;
194 static pf_flags protocolfilter_flags = PF_NONE;
196 static gboolean no_duplicate_keys = FALSE;
197 static proto_node_children_grouper_func node_children_grouper = proto_node_group_children_by_unique;
199 /* The line separator used between packets, changeable via the -S option */
200 static const char *separator = "";
202 static gboolean prefs_loaded = FALSE;
206 * TRUE if we're to print packet counts to keep track of captured packets.
208 static gboolean print_packet_counts;
210 static capture_options global_capture_opts;
211 static capture_session global_capture_session;
212 static info_data_t global_info_data;
215 static gboolean infodelay; /* if TRUE, don't print capture info in SIGINFO handler */
216 static gboolean infoprint; /* if TRUE, print capture info after clearing infodelay */
219 static gboolean capture(void);
220 static void report_counts(void);
222 static BOOL WINAPI capture_cleanup(DWORD);
224 static void capture_cleanup(int);
226 static void report_counts_siginfo(int);
230 #else /* HAVE_LIBPCAP */
232 static char *output_file_name;
234 #endif /* HAVE_LIBPCAP */
236 static void reset_epan_mem(capture_file *cf, epan_dissect_t *edt, gboolean tree, gboolean visual);
237 static gboolean process_cap_file(capture_file *, char *, int, gboolean, int, gint64);
238 static gboolean process_packet_single_pass(capture_file *cf,
239 epan_dissect_t *edt, gint64 offset, wtap_rec *rec,
240 const guchar *pd, guint tap_flags);
241 static void show_print_file_io_error(int err);
242 static gboolean write_preamble(capture_file *cf);
243 static gboolean print_packet(capture_file *cf, epan_dissect_t *edt);
244 static gboolean write_finale(void);
246 static void failure_warning_message(const char *msg_format, va_list ap);
247 static void open_failure_message(const char *filename, int err,
248 gboolean for_writing);
249 static void read_failure_message(const char *filename, int err);
250 static void write_failure_message(const char *filename, int err);
251 static void failure_message_cont(const char *msg_format, va_list ap);
253 static GHashTable *output_only_tables = NULL;
256 const char *sstr; /* The short string */
257 const char *lstr; /* The long string */
261 string_compare(gconstpointer a, gconstpointer b)
263 return strcmp(((const struct string_elem *)a)->sstr,
264 ((const struct string_elem *)b)->sstr);
268 string_elem_print(gpointer data, gpointer not_used _U_)
270 fprintf(stderr, " %s - %s\n",
271 ((struct string_elem *)data)->sstr,
272 ((struct string_elem *)data)->lstr);
276 list_capture_types(void) {
278 struct string_elem *captypes;
281 captypes = g_new(struct string_elem, WTAP_NUM_FILE_TYPES_SUBTYPES);
283 fprintf(stderr, "tshark: The available capture file types for the \"-F\" flag are:\n");
284 for (i = 0; i < WTAP_NUM_FILE_TYPES_SUBTYPES; i++) {
285 if (wtap_dump_can_open(i)) {
286 captypes[i].sstr = wtap_file_type_subtype_short_string(i);
287 captypes[i].lstr = wtap_file_type_subtype_string(i);
288 list = g_slist_insert_sorted(list, &captypes[i], string_compare);
291 g_slist_foreach(list, string_elem_print, NULL);
297 list_read_capture_types(void) {
299 struct string_elem *captypes;
301 const char *magic = "Magic-value-based";
302 const char *heuristic = "Heuristics-based";
304 /* this is a hack, but WTAP_NUM_FILE_TYPES_SUBTYPES is always >= number of open routines so we're safe */
305 captypes = g_new(struct string_elem, WTAP_NUM_FILE_TYPES_SUBTYPES);
307 fprintf(stderr, "tshark: The available read file types for the \"-X read_format:\" option are:\n");
308 for (i = 0; open_routines[i].name != NULL; i++) {
309 captypes[i].sstr = open_routines[i].name;
310 captypes[i].lstr = (open_routines[i].type == OPEN_INFO_MAGIC) ? magic : heuristic;
311 list = g_slist_insert_sorted(list, &captypes[i], string_compare);
313 g_slist_foreach(list, string_elem_print, NULL);
319 print_usage(FILE *output)
321 fprintf(output, "\n");
322 fprintf(output, "Usage: tshark [options] ...\n");
323 fprintf(output, "\n");
326 fprintf(output, "Capture interface:\n");
327 fprintf(output, " -i <interface> name or idx of interface (def: first non-loopback)\n");
328 fprintf(output, " -f <capture filter> packet filter in libpcap filter syntax\n");
329 #ifdef HAVE_PCAP_CREATE
330 fprintf(output, " -s <snaplen> packet snapshot length (def: appropriate maximum)\n");
332 fprintf(output, " -s <snaplen> packet snapshot length (def: %u)\n", WTAP_MAX_PACKET_SIZE_STANDARD);
334 fprintf(output, " -p don't capture in promiscuous mode\n");
335 #ifdef HAVE_PCAP_CREATE
336 fprintf(output, " -I capture in monitor mode, if available\n");
338 #ifdef CAN_SET_CAPTURE_BUFFER_SIZE
339 fprintf(output, " -B <buffer size> size of kernel buffer (def: %dMB)\n", DEFAULT_CAPTURE_BUFFER_SIZE);
341 fprintf(output, " -y <link type> link layer type (def: first appropriate)\n");
342 fprintf(output, " --time-stamp-type <type> timestamp method for interface\n");
343 fprintf(output, " -D print list of interfaces and exit\n");
344 fprintf(output, " -L print list of link-layer types of iface and exit\n");
345 fprintf(output, " --list-time-stamp-types print list of timestamp types for iface and exit\n");
346 fprintf(output, "\n");
347 fprintf(output, "Capture stop conditions:\n");
348 fprintf(output, " -c <packet count> stop after n packets (def: infinite)\n");
349 fprintf(output, " -a <autostop cond.> ... duration:NUM - stop after NUM seconds\n");
350 fprintf(output, " filesize:NUM - stop this file after NUM KB\n");
351 fprintf(output, " files:NUM - stop after NUM files\n");
352 /*fprintf(output, "\n");*/
353 fprintf(output, "Capture output:\n");
354 fprintf(output, " -b <ringbuffer opt.> ... duration:NUM - switch to next file after NUM secs\n");
355 fprintf(output, " interval:NUM - create time intervals of NUM secs\n");
356 fprintf(output, " filesize:NUM - switch to next file after NUM KB\n");
357 fprintf(output, " files:NUM - ringbuffer: replace after NUM files\n");
358 #endif /* HAVE_LIBPCAP */
359 #ifdef HAVE_PCAP_REMOTE
360 fprintf(output, "RPCAP options:\n");
361 fprintf(output, " -A <user>:<password> use RPCAP password authentication\n");
363 /*fprintf(output, "\n");*/
364 fprintf(output, "Input file:\n");
365 fprintf(output, " -r <infile> set the filename to read from (- to read from stdin)\n");
367 fprintf(output, "\n");
368 fprintf(output, "Processing:\n");
369 fprintf(output, " -2 perform a two-pass analysis\n");
370 fprintf(output, " -M <packet count> perform session auto reset\n");
371 fprintf(output, " -R <read filter> packet Read filter in Wireshark display filter syntax\n");
372 fprintf(output, " (requires -2)\n");
373 fprintf(output, " -Y <display filter> packet displaY filter in Wireshark display filter\n");
374 fprintf(output, " syntax\n");
375 fprintf(output, " -n disable all name resolutions (def: all enabled)\n");
376 fprintf(output, " -N <name resolve flags> enable specific name resolution(s): \"mnNtCd\"\n");
377 fprintf(output, " -d %s ...\n", DECODE_AS_ARG_TEMPLATE);
378 fprintf(output, " \"Decode As\", see the man page for details\n");
379 fprintf(output, " Example: tcp.port==8888,http\n");
380 fprintf(output, " -H <hosts file> read a list of entries from a hosts file, which will\n");
381 fprintf(output, " then be written to a capture file. (Implies -W n)\n");
382 fprintf(output, " --enable-protocol <proto_name>\n");
383 fprintf(output, " enable dissection of proto_name\n");
384 fprintf(output, " --disable-protocol <proto_name>\n");
385 fprintf(output, " disable dissection of proto_name\n");
386 fprintf(output, " --enable-heuristic <short_name>\n");
387 fprintf(output, " enable dissection of heuristic protocol\n");
388 fprintf(output, " --disable-heuristic <short_name>\n");
389 fprintf(output, " disable dissection of heuristic protocol\n");
391 /*fprintf(output, "\n");*/
392 fprintf(output, "Output:\n");
393 fprintf(output, " -w <outfile|-> write packets to a pcap-format file named \"outfile\"\n");
394 fprintf(output, " (or to the standard output for \"-\")\n");
395 fprintf(output, " -C <config profile> start with specified configuration profile\n");
396 fprintf(output, " -F <output file type> set the output file type, default is pcapng\n");
397 fprintf(output, " an empty \"-F\" option will list the file types\n");
398 fprintf(output, " -V add output of packet tree (Packet Details)\n");
399 fprintf(output, " -O <protocols> Only show packet details of these protocols, comma\n");
400 fprintf(output, " separated\n");
401 fprintf(output, " -P print packet summary even when writing to a file\n");
402 fprintf(output, " -S <separator> the line separator to print between packets\n");
403 fprintf(output, " -x add output of hex and ASCII dump (Packet Bytes)\n");
404 fprintf(output, " -T pdml|ps|psml|json|jsonraw|ek|tabs|text|fields|?\n");
405 fprintf(output, " format of text output (def: text)\n");
406 fprintf(output, " -j <protocolfilter> protocols layers filter if -T ek|pdml|json selected\n");
407 fprintf(output, " (e.g. \"ip ip.flags text\", filter does not expand child\n");
408 fprintf(output, " nodes, unless child is specified also in the filter)\n");
409 fprintf(output, " -J <protocolfilter> top level protocol filter if -T ek|pdml|json selected\n");
410 fprintf(output, " (e.g. \"http tcp\", filter which expands all child nodes)\n");
411 fprintf(output, " -e <field> field to print if -Tfields selected (e.g. tcp.port,\n");
412 fprintf(output, " _ws.col.Info)\n");
413 fprintf(output, " this option can be repeated to print multiple fields\n");
414 fprintf(output, " -E<fieldsoption>=<value> set options for output when -Tfields selected:\n");
415 fprintf(output, " bom=y|n print a UTF-8 BOM\n");
416 fprintf(output, " header=y|n switch headers on and off\n");
417 fprintf(output, " separator=/t|/s|<char> select tab, space, printable character as separator\n");
418 fprintf(output, " occurrence=f|l|a print first, last or all occurrences of each field\n");
419 fprintf(output, " aggregator=,|/s|<char> select comma, space, printable character as\n");
420 fprintf(output, " aggregator\n");
421 fprintf(output, " quote=d|s|n select double, single, no quotes for values\n");
422 fprintf(output, " -t a|ad|d|dd|e|r|u|ud|? output format of time stamps (def: r: rel. to first)\n");
423 fprintf(output, " -u s|hms output format of seconds (def: s: seconds)\n");
424 fprintf(output, " -l flush standard output after each packet\n");
425 fprintf(output, " -q be more quiet on stdout (e.g. when using statistics)\n");
426 fprintf(output, " -Q only log true errors to stderr (quieter than -q)\n");
427 fprintf(output, " -g enable group read access on the output file(s)\n");
428 fprintf(output, " -W n Save extra information in the file, if supported.\n");
429 fprintf(output, " n = write network address resolution information\n");
430 fprintf(output, " -X <key>:<value> eXtension options, see the man page for details\n");
431 fprintf(output, " -U tap_name PDUs export mode, see the man page for details\n");
432 fprintf(output, " -z <statistics> various statistics, see the man page for details\n");
433 fprintf(output, " --capture-comment <comment>\n");
434 fprintf(output, " add a capture comment to the newly created\n");
435 fprintf(output, " output file (only for pcapng)\n");
436 fprintf(output, " --export-objects <protocol>,<destdir> save exported objects for a protocol to\n");
437 fprintf(output, " a directory named \"destdir\"\n");
438 fprintf(output, " --color color output text similarly to the Wireshark GUI,\n");
439 fprintf(output, " requires a terminal with 24-bit color support\n");
440 fprintf(output, " Also supplies color attributes to pdml and psml formats\n");
441 fprintf(output, " (Note that attributes are nonstandard)\n");
442 fprintf(output, " --no-duplicate-keys If -T json is specified, merge duplicate keys in an object\n");
443 fprintf(output, " into a single key with as value a json array containing all\n");
444 fprintf(output, " values");
446 fprintf(output, "\n");
447 fprintf(output, "Miscellaneous:\n");
448 fprintf(output, " -h display this help and exit\n");
449 fprintf(output, " -v display version info and exit\n");
450 fprintf(output, " -o <name>:<value> ... override preference setting\n");
451 fprintf(output, " -K <keytab> keytab file to use for kerberos decryption\n");
452 fprintf(output, " -G [report] dump one of several available reports and exit\n");
453 fprintf(output, " default report=\"fields\"\n");
454 fprintf(output, " use \"-G help\" for more help\n");
456 fprintf(output, "\n");
457 fprintf(output, "Dumpcap can benefit from an enabled BPF JIT compiler if available.\n");
458 fprintf(output, "You might want to enable it by executing:\n");
459 fprintf(output, " \"echo 1 > /proc/sys/net/core/bpf_jit_enable\"\n");
460 fprintf(output, "Note that this can make your system less secure!\n");
466 glossary_option_help(void)
472 fprintf(output, "TShark (Wireshark) %s\n", get_ws_vcs_version_info());
474 fprintf(output, "\n");
475 fprintf(output, "Usage: tshark -G [report]\n");
476 fprintf(output, "\n");
477 fprintf(output, "Glossary table reports:\n");
478 fprintf(output, " -G column-formats dump column format codes and exit\n");
479 fprintf(output, " -G decodes dump \"layer type\"/\"decode as\" associations and exit\n");
480 fprintf(output, " -G dissector-tables dump dissector table names, types, and properties\n");
481 fprintf(output, " -G fieldcount dump count of header fields and exit\n");
482 fprintf(output, " -G fields dump fields glossary and exit\n");
483 fprintf(output, " -G ftypes dump field type basic and descriptive names\n");
484 fprintf(output, " -G heuristic-decodes dump heuristic dissector tables\n");
485 fprintf(output, " -G plugins dump installed plugins and exit\n");
486 fprintf(output, " -G protocols dump protocols in registration database and exit\n");
487 fprintf(output, " -G values dump value, range, true/false strings and exit\n");
488 fprintf(output, "\n");
489 fprintf(output, "Preference reports:\n");
490 fprintf(output, " -G currentprefs dump current preferences and exit\n");
491 fprintf(output, " -G defaultprefs dump default preferences and exit\n");
492 fprintf(output, " -G folders dump about:folders\n");
493 fprintf(output, "\n");
497 tshark_log_handler (const gchar *log_domain, GLogLevelFlags log_level,
498 const gchar *message, gpointer user_data)
500 /* ignore log message, if log_level isn't interesting based
501 upon the console log preferences.
502 If the preferences haven't been loaded yet, display the
505 The default console_log_level preference value is such that only
506 ERROR, CRITICAL and WARNING level messages are processed;
507 MESSAGE, INFO and DEBUG level messages are ignored.
509 XXX: Aug 07, 2009: Prior tshark g_log code was hardwired to process only
510 ERROR and CRITICAL level messages so the current code is a behavioral
511 change. The current behavior is the same as in Wireshark.
513 if (prefs_loaded && (log_level & G_LOG_LEVEL_MASK & prefs.console_log_level) == 0) {
517 g_log_default_handler(log_domain, log_level, message, user_data);
522 print_current_user(void) {
523 gchar *cur_user, *cur_group;
525 if (started_with_special_privs()) {
526 cur_user = get_cur_username();
527 cur_group = get_cur_groupname();
528 fprintf(stderr, "Running as user \"%s\" and group \"%s\".",
529 cur_user, cur_group);
532 if (running_with_special_privs()) {
533 fprintf(stderr, " This could be dangerous.");
535 fprintf(stderr, "\n");
540 get_tshark_compiled_version_info(GString *str)
542 /* Capture libraries */
543 get_compiled_caplibs_version(str);
547 get_tshark_runtime_version_info(GString *str)
550 /* Capture libraries */
551 g_string_append(str, ", ");
552 get_runtime_caplibs_version(str);
555 /* stuff used by libwireshark */
556 epan_get_runtime_version_info(str);
562 const char *constpath;
570 * Fetching the "File" dialogs folder not implemented.
571 * This is arguably just a pwd for a ui/cli .
575 printf("%-21s\t%s\n", "Temp:", g_get_tmp_dir());
578 path = get_persconffile_path("", FALSE);
579 printf("%-21s\t%s\n", "Personal configuration:", path);
583 constpath = get_datafile_dir();
584 if (constpath != NULL) {
585 printf("%-21s\t%s\n", "Global configuration:", constpath);
589 constpath = get_systemfile_dir();
590 printf("%-21s\t%s\n", "System:", constpath);
593 constpath = get_progfile_dir();
594 printf("%-21s\t%s\n", "Program:", constpath);
598 printf("%-21s\t%s\n", "Personal Plugins:", get_plugins_pers_dir_with_version());
601 printf("%-21s\t%s\n", "Global Plugins:", get_plugins_dir_with_version());
605 /* pers lua plugins */
606 printf("%-21s\t%s\n", "Personal Lua Plugins:", get_plugins_pers_dir());
608 /* global lua plugins */
609 printf("%-21s\t%s\n", "Global Lua Plugins:", get_plugins_dir());
613 constpath = get_extcap_dir();
615 resultArray = g_strsplit(constpath, G_SEARCHPATH_SEPARATOR_S, 10);
616 for(i = 0; resultArray[i]; i++)
617 printf("%-21s\t%s\n", "Extcap path:", g_strstrip(resultArray[i]));
619 g_strfreev(resultArray);
623 path = geoip_db_get_paths();
625 resultArray = g_strsplit(path, G_SEARCHPATH_SEPARATOR_S, 10);
627 for(i = 0; resultArray[i]; i++)
628 printf("%-21s\t%s\n", "GeoIP path:", g_strstrip(resultArray[i]));
630 g_strfreev(resultArray);
636 path = oid_get_default_mib_path();
637 resultArray = g_strsplit(path, G_SEARCHPATH_SEPARATOR_S, 10);
639 for(i = 0; resultArray[i]; i++)
640 printf("%-21s\t%s\n", "MIB/PIB path:", g_strstrip(resultArray[i]));
642 g_strfreev(resultArray);
649 main(int argc, char *argv[])
651 GString *comp_info_str;
652 GString *runtime_info_str;
653 char *init_progfile_dir_error;
655 static const struct option long_options[] = {
656 {"help", no_argument, NULL, 'h'},
657 {"version", no_argument, NULL, 'v'},
658 LONGOPT_CAPTURE_COMMON
659 LONGOPT_DISSECT_COMMON
660 {"print", no_argument, NULL, 'P'},
661 {"export-objects", required_argument, NULL, LONGOPT_EXPORT_OBJECTS},
662 {"color", no_argument, NULL, LONGOPT_COLOR},
663 {"no-duplicate-keys", no_argument, NULL, LONGOPT_NO_DUPLICATE_KEYS},
666 gboolean arg_error = FALSE;
674 volatile gboolean success;
675 volatile int exit_status = EXIT_SUCCESS;
677 int caps_queries = 0;
678 gboolean start_capture = FALSE;
682 gboolean capture_option_specified = FALSE;
684 gboolean quiet = FALSE;
685 #ifdef PCAP_NG_DEFAULT
686 volatile int out_file_type = WTAP_FILE_TYPE_SUBTYPE_PCAPNG;
688 volatile int out_file_type = WTAP_FILE_TYPE_SUBTYPE_PCAP;
690 volatile gboolean out_file_name_res = FALSE;
691 volatile int in_file_type = WTAP_TYPE_AUTO;
692 gchar *volatile cf_name = NULL;
693 gchar *rfilter = NULL;
694 gchar *dfilter = NULL;
695 #ifdef HAVE_PCAP_OPEN_DEAD
696 struct bpf_program fcode;
698 dfilter_t *rfcode = NULL;
699 dfilter_t *dfcode = NULL;
703 gchar *output_only = NULL;
704 gchar *volatile pdu_export_arg = NULL;
705 const char *volatile exp_pdu_filename = NULL;
706 exp_pdu_t exp_pdu_tap_data;
709 * The leading + ensures that getopt_long() does not permute the argv[]
712 * We have to make sure that the first getopt_long() preserves the content
713 * of argv[] for the subsequent getopt_long() call.
715 * We use getopt_long() in both cases to ensure that we're using a routine
716 * whose permutation behavior we can control in the same fashion on all
717 * platforms, and so that, if we ever need to process a long argument before
718 * doing further initialization, we can do so.
720 * Glibc and Solaris libc document that a leading + disables permutation
721 * of options, regardless of whether POSIXLY_CORRECT is set or not; *BSD
722 * and macOS don't document it, but do so anyway.
724 * We do *not* use a leading - because the behavior of a leading - is
725 * platform-dependent.
727 #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:"
729 static const char optstring[] = OPTSTRING;
731 tshark_debug("tshark started with %d args", argc);
733 /* Set the C-language locale to the native environment. */
734 setlocale(LC_ALL, "");
736 cmdarg_err_init(failure_warning_message, failure_message_cont);
739 arg_list_utf_16to8(argc, argv);
740 create_app_running_mutex();
741 #if !GLIB_CHECK_VERSION(2,31,0)
747 * Get credential information for later use, and drop privileges
748 * before doing anything else.
749 * Let the user know if anything happened.
751 init_process_policies();
752 relinquish_special_privs_perm();
753 print_current_user();
756 * Attempt to get the pathname of the directory containing the
759 init_progfile_dir_error = init_progfile_dir(argv[0], main);
760 if (init_progfile_dir_error != NULL) {
762 "tshark: Can't get pathname of directory containing the tshark program: %s.\n"
763 "It won't be possible to capture traffic.\n"
764 "Report this to the Wireshark developers.",
765 init_progfile_dir_error);
766 g_free(init_progfile_dir_error);
769 initialize_funnel_ops();
772 ws_init_dll_search_path();
774 /* Load wpcap if possible. Do this before collecting the run-time version information */
777 /* Warn the user if npf.sys isn't loaded. */
778 if (!npf_sys_is_running() && get_windows_major_version() >= 6) {
779 fprintf(stderr, "The NPF driver isn't running. You may have trouble "
780 "capturing or\nlisting interfaces.\n");
782 #endif /* HAVE_LIBPCAP */
785 /* Get the compile-time version information string */
786 comp_info_str = get_compiled_version_info(get_tshark_compiled_version_info,
787 epan_get_compiled_version_info);
789 /* Get the run-time version information string */
790 runtime_info_str = get_runtime_version_info(get_tshark_runtime_version_info);
792 /* Add it to the information to be reported on a crash. */
793 ws_add_crash_info("TShark (Wireshark) %s\n"
798 get_ws_vcs_version_info(), comp_info_str->str, runtime_info_str->str);
799 g_string_free(comp_info_str, TRUE);
800 g_string_free(runtime_info_str, TRUE);
802 /* Fail sometimes. Useful for testing fuzz scripts. */
803 /* if (g_random_int_range(0, 100) < 5) abort(); */
806 * In order to have the -X opts assigned before the wslua machine starts
807 * we need to call getopt_long before epan_init() gets called.
809 * In order to handle, for example, -o options, we also need to call it
810 * *after* epan_init() gets called, so that the dissectors have had a
811 * chance to register their preferences.
813 * XXX - can we do this all with one getopt_long() call, saving the
814 * arguments we can't handle until after initializing libwireshark,
815 * and then process them after initializing libwireshark?
819 while ((opt = getopt_long(argc, argv, optstring, long_options, NULL)) != -1) {
821 case 'C': /* Configuration Profile */
822 if (profile_exists (optarg, FALSE)) {
823 set_profile_name (optarg);
825 cmdarg_err("Configuration Profile \"%s\" does not exist", optarg);
826 exit_status = INVALID_OPTION;
830 case 'P': /* Print packet summary info even when writing to a file */
831 print_packet_info = TRUE;
832 print_summary = TRUE;
834 case 'O': /* Only output these protocols */
835 output_only = g_strdup(optarg);
837 case 'V': /* Verbose */
838 print_details = TRUE;
839 print_packet_info = TRUE;
841 case 'x': /* Print packet data in hex (and ASCII) */
843 /* The user asked for hex output, so let's ensure they get it,
844 * even if they're writing to a file.
846 print_packet_info = TRUE;
856 /** Send All g_log messages to our own handler **/
860 G_LOG_LEVEL_CRITICAL|
865 G_LOG_FLAG_FATAL|G_LOG_FLAG_RECURSION;
867 g_log_set_handler(NULL,
868 (GLogLevelFlags)log_flags,
869 tshark_log_handler, NULL /* user_data */);
870 g_log_set_handler(LOG_DOMAIN_MAIN,
871 (GLogLevelFlags)log_flags,
872 tshark_log_handler, NULL /* user_data */);
875 g_log_set_handler(LOG_DOMAIN_CAPTURE,
876 (GLogLevelFlags)log_flags,
877 tshark_log_handler, NULL /* user_data */);
878 g_log_set_handler(LOG_DOMAIN_CAPTURE_CHILD,
879 (GLogLevelFlags)log_flags,
880 tshark_log_handler, NULL /* user_data */);
883 init_report_message(failure_warning_message, failure_warning_message,
884 open_failure_message, read_failure_message,
885 write_failure_message);
888 capture_opts_init(&global_capture_opts);
889 capture_session_init(&global_capture_session, &cfile);
892 timestamp_set_type(TS_RELATIVE);
893 timestamp_set_precision(TS_PREC_AUTO);
894 timestamp_set_seconds_type(TS_SECONDS_DEFAULT);
898 /* Register all dissectors; we must do this before checking for the
899 "-G" flag, as the "-G" flag dumps information registered by the
900 dissectors, and we must do it before we read the preferences, in
901 case any dissectors register preferences. */
902 if (!epan_init(register_all_protocols, register_all_protocol_handoffs, NULL,
904 exit_status = INIT_FAILED;
908 /* Register all tap listeners; we do this before we parse the arguments,
909 as the "-z" argument can specify a registered tap. */
911 /* we register the plugin taps before the other taps because
912 stats_tree taps plugins will be registered as tap listeners
913 by stats_tree_stat.c and need to registered before that */
915 register_all_plugin_tap_listeners();
917 extcap_register_preferences();
918 /* Register all tap listeners. */
919 for (tap_reg_t *t = tap_reg_listener; t->cb_func != NULL; t++) {
922 conversation_table_set_gui_info(init_iousers);
923 hostlist_table_set_gui_info(init_hostlists);
924 srt_table_iterate_tables(register_srt_tables, NULL);
925 rtd_table_iterate_tables(register_rtd_tables, NULL);
926 new_stat_tap_iterate_tables(register_simple_stat_tables, NULL);
928 /* If invoked with the "-G" flag, we dump out information based on
929 the argument to the "-G" flag; if no argument is specified,
930 for backwards compatibility we dump out a glossary of display
933 XXX - we do this here, for now, to support "-G" with no arguments.
934 If none of our build or other processes uses "-G" with no arguments,
935 we can just process it with the other arguments. */
936 if (argc >= 2 && strcmp(argv[1], "-G") == 0) {
937 proto_initialize_all_prefixes();
940 proto_registrar_dump_fields();
942 if (strcmp(argv[2], "column-formats") == 0)
943 column_dump_column_formats();
944 else if (strcmp(argv[2], "currentprefs") == 0) {
945 epan_load_settings();
948 else if (strcmp(argv[2], "decodes") == 0)
949 dissector_dump_decodes();
950 else if (strcmp(argv[2], "defaultprefs") == 0)
952 else if (strcmp(argv[2], "dissector-tables") == 0)
953 dissector_dump_dissector_tables();
954 else if (strcmp(argv[2], "fieldcount") == 0) {
955 /* return value for the test suite */
956 exit_status = proto_registrar_dump_fieldcount();
958 } else if (strcmp(argv[2], "fields") == 0)
959 proto_registrar_dump_fields();
960 else if (strcmp(argv[2], "folders") == 0)
962 else if (strcmp(argv[2], "ftypes") == 0)
963 proto_registrar_dump_ftypes();
964 else if (strcmp(argv[2], "heuristic-decodes") == 0)
965 dissector_dump_heur_decodes();
966 else if (strcmp(argv[2], "plugins") == 0) {
971 wslua_plugins_dump_all();
974 else if (strcmp(argv[2], "protocols") == 0)
975 proto_registrar_dump_protocols();
976 else if (strcmp(argv[2], "values") == 0)
977 proto_registrar_dump_values();
978 else if (strcmp(argv[2], "help") == 0)
979 glossary_option_help();
980 /* These are supported only for backwards compatibility and may or may not work
981 * for a given user in a given directory on a given operating system with a given
982 * command-line interpreter.
984 else if (strcmp(argv[2], "?") == 0)
985 glossary_option_help();
986 else if (strcmp(argv[2], "-?") == 0)
987 glossary_option_help();
989 cmdarg_err("Invalid \"%s\" option for -G flag, enter -G help for more help.", argv[2]);
990 exit_status = INVALID_OPTION;
994 exit_status = EXIT_SUCCESS;
998 tshark_debug("tshark reading settings");
1000 /* Load libwireshark settings from the current profile. */
1001 prefs_p = epan_load_settings();
1002 prefs_loaded = TRUE;
1004 read_filter_list(CFILTER_LIST);
1006 cap_file_init(&cfile);
1008 /* Print format defaults to this. */
1009 print_format = PR_FMT_TEXT;
1010 delimiter_char = " ";
1012 output_fields = output_fields_new();
1015 * To reset the options parser, set optreset to 1 on platforms that
1016 * have optreset (documented in *BSD and macOS, apparently present but
1017 * not documented in Solaris - the Illumos repository seems to
1018 * suggest that the first Solaris getopt_long(), at least as of 2004,
1019 * was based on the NetBSD one, it had optreset) and set optind to 1,
1020 * and set optind to 0 otherwise (documented as working in the GNU
1021 * getopt_long(). Setting optind to 0 didn't originally work in the
1022 * NetBSD one, but that was added later - we don't want to depend on
1023 * it if we have optreset).
1025 * Also reset opterr to 1, so that error messages are printed by
1028 #ifdef HAVE_OPTRESET
1036 /* Now get our args */
1037 while ((opt = getopt_long(argc, argv, optstring, long_options, NULL)) != -1) {
1039 case '2': /* Perform two pass analysis */
1040 if(epan_auto_reset){
1041 cmdarg_err("-2 does not support auto session reset.");
1044 perform_two_pass_analysis = TRUE;
1047 if(perform_two_pass_analysis){
1048 cmdarg_err("-M does not support two pass analysis.");
1051 epan_auto_reset_count = get_positive_int(optarg, "epan reset count");
1052 epan_auto_reset = TRUE;
1054 case 'a': /* autostop criteria */
1055 case 'b': /* Ringbuffer option */
1056 case 'c': /* Capture x packets */
1057 case 'f': /* capture filter */
1058 case 'g': /* enable group read access on file(s) */
1059 case 'i': /* Use interface x */
1060 case LONGOPT_SET_TSTAMP_TYPE: /* Set capture timestamp type */
1061 case 'p': /* Don't capture in promiscuous mode */
1062 #ifdef HAVE_PCAP_REMOTE
1063 case 'A': /* Authentication */
1065 #ifdef HAVE_PCAP_CREATE
1066 case 'I': /* Capture in monitor mode, if available */
1068 case 's': /* Set the snapshot (capture) length */
1069 case 'w': /* Write to capture file x */
1070 case 'y': /* Set the pcap data link type */
1071 case LONGOPT_NUM_CAP_COMMENT: /* add a capture comment */
1072 #ifdef CAN_SET_CAPTURE_BUFFER_SIZE
1073 case 'B': /* Buffer size */
1076 exit_status = capture_opts_add_opt(&global_capture_opts, opt, optarg, &start_capture);
1077 if (exit_status != 0) {
1083 * Output file name, if we're reading a file and writing to another
1086 output_file_name = optarg;
1088 capture_option_specified = TRUE;
1094 /* already processed; just ignore it now */
1096 case 'D': /* Print a list of capture devices and exit */
1098 if_list = capture_interface_list(&err, &err_str,NULL);
1099 if (if_list == NULL) {
1101 cmdarg_err("There are no interfaces on which a capture can be done");
1103 cmdarg_err("%s", err_str);
1106 exit_status = INVALID_INTERFACE;
1109 capture_opts_print_interfaces(if_list);
1110 free_interface_list(if_list);
1111 exit_status = EXIT_SUCCESS;
1114 capture_option_specified = TRUE;
1120 output_fields_add(output_fields, optarg);
1124 if (!output_fields_set_option(output_fields, optarg)) {
1125 cmdarg_err("\"%s\" is not a valid field output option=value pair.", optarg);
1126 output_fields_list_options(stderr);
1127 exit_status = INVALID_OPTION;
1132 out_file_type = wtap_short_string_to_file_type_subtype(optarg);
1133 if (out_file_type < 0) {
1134 cmdarg_err("\"%s\" isn't a valid capture file type", optarg);
1135 list_capture_types();
1136 exit_status = INVALID_OPTION;
1141 protocolfilter = wmem_strsplit(wmem_epan_scope(), optarg, " ", -1);
1144 protocolfilter_flags = PF_INCLUDE_CHILDREN;
1145 protocolfilter = wmem_strsplit(wmem_epan_scope(), optarg, " ", -1);
1147 case 'W': /* Select extra information to save in our capture file */
1148 /* This is patterned after the -N flag which may not be the best idea. */
1149 if (strchr(optarg, 'n')) {
1150 out_file_name_res = TRUE;
1152 cmdarg_err("Invalid -W argument \"%s\"; it must be one of:", optarg);
1153 cmdarg_err_cont("\t'n' write network address resolution information (pcapng only)");
1154 exit_status = INVALID_OPTION;
1158 case 'H': /* Read address to name mappings from a hosts file */
1159 if (! add_hosts_file(optarg))
1161 cmdarg_err("Can't read host entries from \"%s\"", optarg);
1162 exit_status = INVALID_OPTION;
1165 out_file_name_res = TRUE;
1168 case 'h': /* Print help and exit */
1169 printf("TShark (Wireshark) %s\n"
1170 "Dump and analyze network traffic.\n"
1171 "See https://www.wireshark.org for more information.\n",
1172 get_ws_vcs_version_info());
1173 print_usage(stdout);
1174 exit_status = EXIT_SUCCESS;
1177 case 'l': /* "Line-buffer" standard output */
1178 /* The ANSI C standard does not appear to *require* that a line-buffered
1179 stream be flushed to the host environment whenever a newline is
1180 written, it just says that, on such a stream, characters "are
1181 intended to be transmitted to or from the host environment as a
1182 block when a new-line character is encountered".
1184 The Visual C++ 6.0 C implementation doesn't do what is intended;
1185 even if you set a stream to be line-buffered, it still doesn't
1186 flush the buffer at the end of every line.
1188 The whole reason for the "-l" flag in either tcpdump or TShark
1189 is to allow the output of a live capture to be piped to a program
1190 or script and to have that script see the information for the
1191 packet as soon as it's printed, rather than having to wait until
1192 a standard I/O buffer fills up.
1194 So, if the "-l" flag is specified, we flush the standard output
1195 at the end of a packet. This will do the right thing if we're
1196 printing packet summary lines, and, as we print the entire protocol
1197 tree for a single packet without waiting for anything to happen,
1198 it should be as good as line-buffered mode if we're printing
1199 protocol trees - arguably even better, as it may do fewer
1201 line_buffered = TRUE;
1203 case 'L': /* Print list of link-layer types and exit */
1205 caps_queries |= CAPS_QUERY_LINK_TYPES;
1207 capture_option_specified = TRUE;
1211 case LONGOPT_LIST_TSTAMP_TYPES: /* List possible timestamp types */
1213 caps_queries |= CAPS_QUERY_TIMESTAMP_TYPES;
1215 capture_option_specified = TRUE;
1219 case 'o': /* Override preference from command line */
1221 char *errmsg = NULL;
1223 switch (prefs_set_pref(optarg, &errmsg)) {
1228 case PREFS_SET_SYNTAX_ERR:
1229 cmdarg_err("Invalid -o flag \"%s\"%s%s", optarg,
1230 errmsg ? ": " : "", errmsg ? errmsg : "");
1232 exit_status = INVALID_OPTION;
1236 case PREFS_SET_NO_SUCH_PREF:
1237 case PREFS_SET_OBSOLETE:
1238 cmdarg_err("-o flag \"%s\" specifies unknown preference", optarg);
1239 exit_status = INVALID_OPTION;
1245 case 'q': /* Quiet */
1248 case 'Q': /* Really quiet */
1250 really_quiet = TRUE;
1252 case 'r': /* Read capture file x */
1253 cf_name = g_strdup(optarg);
1255 case 'R': /* Read file filter */
1259 /* already processed; just ignore it now */
1261 case 'S': /* Set the line Separator to be printed between packets */
1264 case 'T': /* printing Type */
1265 print_packet_info = TRUE;
1266 if (strcmp(optarg, "text") == 0) {
1267 output_action = WRITE_TEXT;
1268 print_format = PR_FMT_TEXT;
1269 } else if (strcmp(optarg, "tabs") == 0) {
1270 output_action = WRITE_TEXT;
1271 print_format = PR_FMT_TEXT;
1272 delimiter_char = "\t";
1273 } else if (strcmp(optarg, "ps") == 0) {
1274 output_action = WRITE_TEXT;
1275 print_format = PR_FMT_PS;
1276 } else if (strcmp(optarg, "pdml") == 0) {
1277 output_action = WRITE_XML;
1278 print_details = TRUE; /* Need details */
1279 print_summary = FALSE; /* Don't allow summary */
1280 } else if (strcmp(optarg, "psml") == 0) {
1281 output_action = WRITE_XML;
1282 print_details = FALSE; /* Don't allow details */
1283 print_summary = TRUE; /* Need summary */
1284 } else if (strcmp(optarg, "fields") == 0) {
1285 output_action = WRITE_FIELDS;
1286 print_details = TRUE; /* Need full tree info */
1287 print_summary = FALSE; /* Don't allow summary */
1288 } else if (strcmp(optarg, "json") == 0) {
1289 output_action = WRITE_JSON;
1290 print_details = TRUE; /* Need details */
1291 print_summary = FALSE; /* Don't allow summary */
1292 } else if (strcmp(optarg, "ek") == 0) {
1293 output_action = WRITE_EK;
1295 print_details = TRUE;
1296 } else if (strcmp(optarg, "jsonraw") == 0) {
1297 output_action = WRITE_JSON_RAW;
1298 print_details = TRUE; /* Need details */
1299 print_summary = FALSE; /* Don't allow summary */
1302 cmdarg_err("Invalid -T parameter \"%s\"; it must be one of:", optarg); /* x */
1303 cmdarg_err_cont("\t\"fields\" The values of fields specified with the -e option, in a form\n"
1304 "\t specified by the -E option.\n"
1305 "\t\"pdml\" Packet Details Markup Language, an XML-based format for the\n"
1306 "\t details of a decoded packet. This information is equivalent to\n"
1307 "\t the packet details printed with the -V flag.\n"
1308 "\t\"ps\" PostScript for a human-readable one-line summary of each of\n"
1309 "\t the packets, or a multi-line view of the details of each of\n"
1310 "\t the packets, depending on whether the -V flag was specified.\n"
1311 "\t\"psml\" Packet Summary Markup Language, an XML-based format for the\n"
1312 "\t summary information of a decoded packet. This information is\n"
1313 "\t equivalent to the information shown in the one-line summary\n"
1314 "\t printed by default.\n"
1315 "\t\"json\" Packet Summary, an JSON-based format for the details\n"
1316 "\t summary information of a decoded packet. This information is \n"
1317 "\t equivalent to the packet details printed with the -V flag.\n"
1318 "\t\"jsonraw\" Packet Details, a JSON-based format for machine parsing\n"
1319 "\t including only raw hex decoded fields (same as -T json -x but\n"
1320 "\t without text decoding, only raw fields included). \n"
1321 "\t\"ek\" Packet Details, an EK JSON-based format for the bulk insert \n"
1322 "\t into elastic search cluster. This information is \n"
1323 "\t equivalent to the packet details printed with the -V flag.\n"
1324 "\t\"text\" Text of a human-readable one-line summary of each of the\n"
1325 "\t packets, or a multi-line view of the details of each of the\n"
1326 "\t packets, depending on whether the -V flag was specified.\n"
1327 "\t This is the default.\n"
1328 "\t\"tabs\" Similar to the text report except that each column of the\n"
1329 "\t human-readable one-line summary is delimited with an ASCII\n"
1330 "\t horizontal tab character.");
1331 exit_status = INVALID_OPTION;
1335 case 'U': /* Export PDUs to file */
1337 GSList *export_pdu_tap_name_list = NULL;
1340 cmdarg_err("A tap name is required. Valid names are:");
1341 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)) {
1342 cmdarg_err("%s\n", (const char*)(export_pdu_tap_name_list->data));
1344 exit_status = INVALID_OPTION;
1347 pdu_export_arg = g_strdup(optarg);
1350 case 'v': /* Show version and exit */
1351 comp_info_str = get_compiled_version_info(get_tshark_compiled_version_info,
1352 epan_get_compiled_version_info);
1353 runtime_info_str = get_runtime_version_info(get_tshark_runtime_version_info);
1354 show_version("TShark (Wireshark)", comp_info_str, runtime_info_str);
1355 g_string_free(comp_info_str, TRUE);
1356 g_string_free(runtime_info_str, TRUE);
1357 /* We don't really have to cleanup here, but it's a convenient way to test
1358 * start-up and shut-down of the epan library without any UI-specific
1359 * cruft getting in the way. Makes the results of running
1360 * $ ./tools/valgrind-wireshark -n
1361 * much more useful. */
1364 exit_status = EXIT_SUCCESS;
1366 case 'O': /* Only output these protocols */
1367 /* already processed; just ignore it now */
1369 case 'V': /* Verbose */
1370 /* already processed; just ignore it now */
1372 case 'x': /* Print packet data in hex (and ASCII) */
1373 /* already processed; just ignore it now */
1376 /* already processed; just ignore it now */
1382 /* We won't call the init function for the stat this soon
1383 as it would disallow MATE's fields (which are registered
1384 by the preferences set callback) from being used as
1385 part of a tap filter. Instead, we just add the argument
1386 to a list of stat arguments. */
1387 if (strcmp("help", optarg) == 0) {
1388 fprintf(stderr, "tshark: The available statistics for the \"-z\" option are:\n");
1389 list_stat_cmd_args();
1390 exit_status = EXIT_SUCCESS;
1393 if (!process_stat_cmd_arg(optarg)) {
1394 cmdarg_err("Invalid -z argument \"%s\"; it must be one of:", optarg);
1395 list_stat_cmd_args();
1396 exit_status = INVALID_OPTION;
1400 case 'd': /* Decode as rule */
1401 case 'K': /* Kerberos keytab file */
1402 case 'n': /* No name resolution */
1403 case 'N': /* Select what types of addresses/port #s to resolve */
1404 case 't': /* Time stamp type */
1405 case 'u': /* Seconds type */
1406 case LONGOPT_DISABLE_PROTOCOL: /* disable dissection of protocol */
1407 case LONGOPT_ENABLE_HEURISTIC: /* enable heuristic dissection of protocol */
1408 case LONGOPT_DISABLE_HEURISTIC: /* disable heuristic dissection of protocol */
1409 case LONGOPT_ENABLE_PROTOCOL: /* enable dissection of protocol (that is disabled by default) */
1410 if (!dissect_opts_handle_opt(opt, optarg)) {
1411 exit_status = INVALID_OPTION;
1415 case LONGOPT_EXPORT_OBJECTS: /* --export-objects */
1416 if (strcmp("help", optarg) == 0) {
1417 fprintf(stderr, "tshark: The available export object types for the \"--export-objects\" option are:\n");
1418 eo_list_object_types();
1419 exit_status = EXIT_SUCCESS;
1422 if (!eo_tap_opt_add(optarg)) {
1423 exit_status = INVALID_OPTION;
1427 case LONGOPT_COLOR: /* print in color where appropriate */
1428 dissect_color = TRUE;
1430 case LONGOPT_NO_DUPLICATE_KEYS:
1431 no_duplicate_keys = TRUE;
1432 node_children_grouper = proto_node_group_children_by_json_key;
1435 case '?': /* Bad flag - print usage message */
1438 list_capture_types();
1441 print_usage(stderr);
1443 exit_status = INVALID_OPTION;
1450 * Print packet summary information is the default if neither -V or -x
1451 * were specified. Note that this is new behavior, which allows for the
1452 * possibility of printing only hex/ascii output without necessarily
1453 * requiring that either the summary or details be printed too.
1455 if (!print_summary && !print_details && !print_hex)
1456 print_summary = TRUE;
1458 if (no_duplicate_keys && output_action != WRITE_JSON && output_action != WRITE_JSON_RAW) {
1459 cmdarg_err("--no-duplicate-keys can only be used with \"-T json\" and \"-T jsonraw\"");
1460 exit_status = INVALID_OPTION;
1464 /* If we specified output fields, but not the output field type... */
1465 if ((WRITE_FIELDS != output_action && WRITE_XML != output_action && WRITE_JSON != output_action && WRITE_EK != output_action) && 0 != output_fields_num_fields(output_fields)) {
1466 cmdarg_err("Output fields were specified with \"-e\", "
1467 "but \"-Tek, -Tfields, -Tjson or -Tpdml\" was not specified.");
1468 exit_status = INVALID_OPTION;
1470 } else if (WRITE_FIELDS == output_action && 0 == output_fields_num_fields(output_fields)) {
1471 cmdarg_err("\"-Tfields\" was specified, but no fields were "
1472 "specified with \"-e\".");
1474 exit_status = INVALID_OPTION;
1478 if (dissect_color) {
1479 if (!color_filters_init(&err_msg, NULL)) {
1480 fprintf(stderr, "%s\n", err_msg);
1485 /* If no capture filter or display filter has been specified, and there are
1486 still command-line arguments, treat them as the tokens of a capture
1487 filter (if no "-r" flag was specified) or a display filter (if a "-r"
1488 flag was specified. */
1489 if (optind < argc) {
1490 if (cf_name != NULL) {
1491 if (dfilter != NULL) {
1492 cmdarg_err("Display filters were specified both with \"-d\" "
1493 "and with additional command-line arguments.");
1494 exit_status = INVALID_OPTION;
1497 dfilter = get_args_as_string(argc, argv, optind);
1502 if (global_capture_opts.default_options.cfilter) {
1503 cmdarg_err("A default capture filter was specified both with \"-f\""
1504 " and with additional command-line arguments.");
1505 exit_status = INVALID_OPTION;
1508 for (i = 0; i < global_capture_opts.ifaces->len; i++) {
1509 interface_options *interface_opts;
1510 interface_opts = &g_array_index(global_capture_opts.ifaces, interface_options, i);
1511 if (interface_opts->cfilter == NULL) {
1512 interface_opts->cfilter = get_args_as_string(argc, argv, optind);
1514 cmdarg_err("A capture filter was specified both with \"-f\""
1515 " and with additional command-line arguments.");
1516 exit_status = INVALID_OPTION;
1520 global_capture_opts.default_options.cfilter = get_args_as_string(argc, argv, optind);
1522 capture_option_specified = TRUE;
1528 if (!global_capture_opts.saving_to_file) {
1529 /* We're not saving the capture to a file; if "-q" wasn't specified,
1530 we should print packet information */
1532 print_packet_info = TRUE;
1534 /* We're saving to a file; if we're writing to the standard output.
1535 and we'll also be writing dissected packets to the standard
1536 output, reject the request. At best, we could redirect that
1537 to the standard error; we *can't* write both to the standard
1538 output and have either of them be useful. */
1539 if (strcmp(global_capture_opts.save_file, "-") == 0 && print_packet_info) {
1540 cmdarg_err("You can't write both raw packet data and dissected packets"
1541 " to the standard output.");
1542 exit_status = INVALID_OPTION;
1547 /* We're not saving the capture to a file; if "-q" wasn't specified,
1548 we should print packet information */
1550 print_packet_info = TRUE;
1553 #ifndef HAVE_LIBPCAP
1554 if (capture_option_specified)
1555 cmdarg_err("This version of TShark was not built with support for capturing packets.");
1558 print_usage(stderr);
1559 exit_status = INVALID_OPTION;
1564 if (output_action != WRITE_TEXT && output_action != WRITE_JSON && output_action != WRITE_JSON_RAW && output_action != WRITE_EK) {
1565 cmdarg_err("Raw packet hex data can only be printed as text, PostScript, JSON, JSONRAW or EK JSON");
1566 exit_status = INVALID_OPTION;
1571 if (output_only != NULL) {
1574 if (!print_details) {
1575 cmdarg_err("-O requires -V");
1576 exit_status = INVALID_OPTION;
1580 output_only_tables = g_hash_table_new (g_str_hash, g_str_equal);
1581 for (ps = strtok (output_only, ","); ps; ps = strtok (NULL, ",")) {
1582 g_hash_table_insert(output_only_tables, (gpointer)ps, (gpointer)ps);
1586 if (rfilter != NULL && !perform_two_pass_analysis) {
1587 cmdarg_err("-R without -2 is deprecated. For single-pass filtering use -Y.");
1588 exit_status = INVALID_OPTION;
1594 /* We're supposed to list the link-layer/timestamp types for an interface;
1595 did the user also specify a capture file to be read? */
1597 /* Yes - that's bogus. */
1598 cmdarg_err("You can't specify %s and a capture file to be read.",
1599 caps_queries & CAPS_QUERY_LINK_TYPES ? "-L" : "--list-time-stamp-types");
1600 exit_status = INVALID_OPTION;
1603 /* No - did they specify a ring buffer option? */
1604 if (global_capture_opts.multi_files_on) {
1605 cmdarg_err("Ring buffer requested, but a capture isn't being done.");
1606 exit_status = INVALID_OPTION;
1612 * "-r" was specified, so we're reading a capture file.
1613 * Capture options don't apply here.
1616 /* We don't support capture filters when reading from a capture file
1617 (the BPF compiler doesn't support all link-layer types that we
1618 support in capture files we read). */
1619 if (global_capture_opts.default_options.cfilter) {
1620 cmdarg_err("Only read filters, not capture filters, "
1621 "can be specified when reading a capture file.");
1622 exit_status = INVALID_OPTION;
1625 if (global_capture_opts.multi_files_on) {
1626 cmdarg_err("Multiple capture files requested, but "
1627 "a capture isn't being done.");
1628 exit_status = INVALID_OPTION;
1631 if (global_capture_opts.has_file_duration) {
1632 cmdarg_err("Switching capture files after a time period was specified, but "
1633 "a capture isn't being done.");
1634 exit_status = INVALID_OPTION;
1637 if (global_capture_opts.has_file_interval) {
1638 cmdarg_err("Switching capture files after a time interval was specified, but "
1639 "a capture isn't being done.");
1640 exit_status = INVALID_OPTION;
1643 if (global_capture_opts.has_ring_num_files) {
1644 cmdarg_err("A ring buffer of capture files was specified, but "
1645 "a capture isn't being done.");
1646 exit_status = INVALID_OPTION;
1649 if (global_capture_opts.has_autostop_files) {
1650 cmdarg_err("A maximum number of capture files was specified, but "
1651 "a capture isn't being done.");
1652 exit_status = INVALID_OPTION;
1655 if (global_capture_opts.capture_comment) {
1656 cmdarg_err("A capture comment was specified, but "
1657 "a capture isn't being done.\nThere's no support for adding "
1658 "a capture comment to an existing capture file.");
1659 exit_status = INVALID_OPTION;
1663 /* Note: TShark now allows the restriction of a _read_ file by packet count
1664 * and byte count as well as a write file. Other autostop options remain valid
1665 * only for a write file.
1667 if (global_capture_opts.has_autostop_duration) {
1668 cmdarg_err("A maximum capture time was specified, but "
1669 "a capture isn't being done.");
1670 exit_status = INVALID_OPTION;
1675 * "-r" wasn't specified, so we're doing a live capture.
1677 if (perform_two_pass_analysis) {
1678 /* Two-pass analysis doesn't work with live capture since it requires us
1679 * to buffer packets until we've read all of them, but a live capture
1680 * has no useful/meaningful definition of "all" */
1681 cmdarg_err("Live captures do not support two-pass analysis.");
1682 exit_status = INVALID_OPTION;
1686 if (global_capture_opts.saving_to_file) {
1687 /* They specified a "-w" flag, so we'll be saving to a capture file. */
1689 /* When capturing, we only support writing pcap or pcapng format. */
1690 if (out_file_type != WTAP_FILE_TYPE_SUBTYPE_PCAP &&
1691 out_file_type != WTAP_FILE_TYPE_SUBTYPE_PCAPNG) {
1692 cmdarg_err("Live captures can only be saved in pcap or pcapng format.");
1693 exit_status = INVALID_OPTION;
1696 if (global_capture_opts.capture_comment &&
1697 out_file_type != WTAP_FILE_TYPE_SUBTYPE_PCAPNG) {
1698 cmdarg_err("A capture comment can only be written to a pcapng file.");
1699 exit_status = INVALID_OPTION;
1702 if (global_capture_opts.multi_files_on) {
1703 /* Multiple-file mode doesn't work under certain conditions:
1704 a) it doesn't work if you're writing to the standard output;
1705 b) it doesn't work if you're writing to a pipe;
1707 if (strcmp(global_capture_opts.save_file, "-") == 0) {
1708 cmdarg_err("Multiple capture files requested, but "
1709 "the capture is being written to the standard output.");
1710 exit_status = INVALID_OPTION;
1713 if (global_capture_opts.output_to_pipe) {
1714 cmdarg_err("Multiple capture files requested, but "
1715 "the capture file is a pipe.");
1716 exit_status = INVALID_OPTION;
1719 if (!global_capture_opts.has_autostop_filesize &&
1720 !global_capture_opts.has_file_duration &&
1721 !global_capture_opts.has_file_interval) {
1722 cmdarg_err("Multiple capture files requested, but "
1723 "no maximum capture file size, duration or interval was specified.");
1724 exit_status = INVALID_OPTION;
1728 /* Currently, we don't support read or display filters when capturing
1729 and saving the packets. */
1730 if (rfilter != NULL) {
1731 cmdarg_err("Read filters aren't supported when capturing and saving the captured packets.");
1732 exit_status = INVALID_OPTION;
1735 if (dfilter != NULL) {
1736 cmdarg_err("Display filters aren't supported when capturing and saving the captured packets.");
1737 exit_status = INVALID_OPTION;
1740 global_capture_opts.use_pcapng = (out_file_type == WTAP_FILE_TYPE_SUBTYPE_PCAPNG) ? TRUE : FALSE;
1742 /* They didn't specify a "-w" flag, so we won't be saving to a
1743 capture file. Check for options that only make sense if
1744 we're saving to a file. */
1745 if (global_capture_opts.has_autostop_filesize) {
1746 cmdarg_err("Maximum capture file size specified, but "
1747 "capture isn't being saved to a file.");
1748 exit_status = INVALID_OPTION;
1751 if (global_capture_opts.multi_files_on) {
1752 cmdarg_err("Multiple capture files requested, but "
1753 "the capture isn't being saved to a file.");
1754 exit_status = INVALID_OPTION;
1757 if (global_capture_opts.capture_comment) {
1758 cmdarg_err("A capture comment was specified, but "
1759 "the capture isn't being saved to a file.");
1760 exit_status = INVALID_OPTION;
1769 /* Start windows sockets */
1770 result = WSAStartup( MAKEWORD( 1, 1 ), &wsaData );
1773 exit_status = INIT_FAILED;
1778 /* Notify all registered modules that have had any of their preferences
1779 changed either from one of the preferences file or from the command
1780 line that their preferences have changed. */
1783 /* At this point MATE will have registered its field array so we can
1784 have a tap filter with one of MATE's late-registered fields as part
1785 of the filter. We can now process all the "-z" arguments. */
1786 start_requested_stats();
1788 /* We can also enable specified taps for export object */
1789 start_exportobjects();
1791 /* At this point MATE will have registered its field array so we can
1792 check if the fields specified by the user are all good.
1796 GSList *invalid_fields = output_fields_valid(output_fields);
1797 if (invalid_fields != NULL) {
1799 cmdarg_err("Some fields aren't valid:");
1800 for (it=invalid_fields; it != NULL; it = g_slist_next(it)) {
1801 cmdarg_err_cont("\t%s", (gchar *)it->data);
1803 g_slist_free(invalid_fields);
1804 exit_status = INVALID_OPTION;
1809 /* We currently don't support taps, or printing dissected packets,
1810 if we're writing to a pipe. */
1811 if (global_capture_opts.saving_to_file &&
1812 global_capture_opts.output_to_pipe) {
1813 if (tap_listeners_require_dissection()) {
1814 cmdarg_err("Taps aren't supported when saving to a pipe.");
1815 exit_status = INVALID_OPTION;
1818 if (print_packet_info) {
1819 cmdarg_err("Printing dissected packets isn't supported when saving to a pipe.");
1820 exit_status = INVALID_OPTION;
1826 if (ex_opt_count("read_format") > 0) {
1827 const gchar* name = ex_opt_get_next("read_format");
1828 in_file_type = open_info_name_to_type(name);
1829 if (in_file_type == WTAP_TYPE_AUTO) {
1830 cmdarg_err("\"%s\" isn't a valid read file format type", name? name : "");
1831 list_read_capture_types();
1832 exit_status = INVALID_OPTION;
1837 timestamp_set_type(global_dissect_options.time_format);
1840 * Enabled and disabled protocols and heuristic dissectors as per
1841 * command-line options.
1843 if (!setup_enabled_and_disabled_protocols()) {
1844 exit_status = INVALID_OPTION;
1848 /* Build the column format array */
1849 build_column_format_array(&cfile.cinfo, prefs_p->num_cols, TRUE);
1852 capture_opts_trim_snaplen(&global_capture_opts, MIN_PACKET_SIZE);
1853 capture_opts_trim_ring_num_files(&global_capture_opts);
1856 if (rfilter != NULL) {
1857 tshark_debug("Compiling read filter: '%s'", rfilter);
1858 if (!dfilter_compile(rfilter, &rfcode, &err_msg)) {
1859 cmdarg_err("%s", err_msg);
1863 #ifdef HAVE_PCAP_OPEN_DEAD
1867 pc = pcap_open_dead(DLT_EN10MB, MIN_PACKET_SIZE);
1869 if (pcap_compile(pc, &fcode, rfilter, 0, 0) != -1) {
1871 " Note: That read filter code looks like a valid capture filter;\n"
1872 " maybe you mixed them up?");
1878 exit_status = INVALID_INTERFACE;
1882 cfile.rfcode = rfcode;
1884 if (dfilter != NULL) {
1885 tshark_debug("Compiling display filter: '%s'", dfilter);
1886 if (!dfilter_compile(dfilter, &dfcode, &err_msg)) {
1887 cmdarg_err("%s", err_msg);
1891 #ifdef HAVE_PCAP_OPEN_DEAD
1895 pc = pcap_open_dead(DLT_EN10MB, MIN_PACKET_SIZE);
1897 if (pcap_compile(pc, &fcode, dfilter, 0, 0) != -1) {
1899 " Note: That display filter code looks like a valid capture filter;\n"
1900 " maybe you mixed them up?");
1906 exit_status = INVALID_FILTER;
1910 cfile.dfcode = dfcode;
1912 if (print_packet_info) {
1913 /* If we're printing as text or PostScript, we have
1914 to create a print stream. */
1915 if (output_action == WRITE_TEXT) {
1916 switch (print_format) {
1919 print_stream = print_stream_text_stdio_new(stdout);
1923 print_stream = print_stream_ps_stdio_new(stdout);
1927 g_assert_not_reached();
1932 /* PDU export requested. Take the ownership of the '-w' file, apply tap
1933 * filters and start tapping. */
1934 if (pdu_export_arg) {
1935 const char *exp_pdu_tap_name = pdu_export_arg;
1936 const char *exp_pdu_filter = dfilter; /* may be NULL to disable filter */
1937 char *exp_pdu_error;
1942 cmdarg_err("PDUs export requires a capture file (specify with -r).");
1943 exit_status = INVALID_OPTION;
1946 /* Take ownership of the '-w' output file. */
1948 exp_pdu_filename = global_capture_opts.save_file;
1949 global_capture_opts.save_file = NULL;
1951 exp_pdu_filename = output_file_name;
1952 output_file_name = NULL;
1954 if (exp_pdu_filename == NULL) {
1955 cmdarg_err("PDUs export requires an output file (-w).");
1956 exit_status = INVALID_OPTION;
1960 exp_pdu_error = exp_pdu_pre_open(exp_pdu_tap_name, exp_pdu_filter,
1962 if (exp_pdu_error) {
1963 cmdarg_err("Cannot register tap: %s", exp_pdu_error);
1964 g_free(exp_pdu_error);
1965 exit_status = INVALID_TAP;
1969 exp_fd = ws_open(exp_pdu_filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0644);
1971 cmdarg_err("%s: %s", exp_pdu_filename, file_open_error_message(errno, TRUE));
1972 exit_status = INVALID_FILE;
1976 /* Activate the export PDU tap */
1977 comment = g_strdup_printf("Dump of PDUs from %s", cf_name);
1978 err = exp_pdu_open(&exp_pdu_tap_data, exp_fd, comment);
1980 cfile_dump_open_failure_message("TShark", exp_pdu_filename, err,
1981 WTAP_FILE_TYPE_SUBTYPE_PCAPNG);
1983 exit_status = INVALID_EXPORT;
1988 /* We have to dissect each packet if:
1990 we're printing information about each packet;
1992 we're using a read filter on the packets;
1994 we're using a display filter on the packets;
1996 we're exporting PDUs;
1998 we're using any taps that need dissection. */
1999 do_dissection = print_packet_info || rfcode || dfcode || pdu_export_arg ||
2000 tap_listeners_require_dissection() || dissect_color;
2001 tshark_debug("tshark: do_dissection = %s", do_dissection ? "TRUE" : "FALSE");
2004 tshark_debug("tshark: Opening capture file: %s", cf_name);
2006 * We're reading a capture file.
2008 if (cf_open(&cfile, cf_name, in_file_type, FALSE, &err) != CF_OK) {
2011 exit_status = INVALID_FILE;
2015 /* Process the packets in the file */
2016 tshark_debug("tshark: invoking process_cap_file() to process the packets");
2019 success = process_cap_file(&cfile, global_capture_opts.save_file, out_file_type, out_file_name_res,
2020 global_capture_opts.has_autostop_packets ? global_capture_opts.autostop_packets : 0,
2021 global_capture_opts.has_autostop_filesize ? global_capture_opts.autostop_filesize : 0);
2023 success = process_cap_file(&cfile, output_file_name, out_file_type, out_file_name_res, 0, 0);
2026 CATCH(OutOfMemoryError) {
2030 "Sorry, but TShark has to terminate now.\n"
2032 "More information and workarounds can be found at\n"
2033 "https://wiki.wireshark.org/KnownBugs/OutOfMemory\n");
2039 /* We still dump out the results of taps, etc., as we might have
2040 read some packets; however, we exit with an error status. */
2044 if (pdu_export_arg) {
2045 err = exp_pdu_close(&exp_pdu_tap_data);
2047 cfile_close_failure_message(exp_pdu_filename, err);
2050 g_free(pdu_export_arg);
2053 tshark_debug("tshark: no capture file specified");
2054 /* No capture file specified, so we're supposed to do a live capture
2055 or get a list of link-layer types for a live capture device;
2056 do we have support for live captures? */
2058 /* if no interface was specified, pick a default */
2059 exit_status = capture_opts_default_iface_if_necessary(&global_capture_opts,
2060 ((prefs_p->capture_device) && (*prefs_p->capture_device != '\0')) ? get_if_name(prefs_p->capture_device) : NULL);
2061 if (exit_status != 0) {
2065 /* if requested, list the link layer types and exit */
2069 /* Get the list of link-layer types for the capture devices. */
2070 for (i = 0; i < global_capture_opts.ifaces->len; i++) {
2071 interface_options *interface_opts;
2072 if_capabilities_t *caps;
2073 char *auth_str = NULL;
2074 int if_caps_queries = caps_queries;
2076 interface_opts = &g_array_index(global_capture_opts.ifaces, interface_options, i);
2077 #ifdef HAVE_PCAP_REMOTE
2078 if (interface_opts->auth_type == CAPTURE_AUTH_PWD) {
2079 auth_str = g_strdup_printf("%s:%s", interface_opts->auth_username, interface_opts->auth_password);
2082 caps = capture_get_if_capabilities(interface_opts->name, interface_opts->monitor_mode, auth_str, &err_str, NULL);
2085 cmdarg_err("%s", err_str);
2087 exit_status = INVALID_CAPABILITY;
2090 if ((if_caps_queries & CAPS_QUERY_LINK_TYPES) && caps->data_link_types == NULL) {
2091 cmdarg_err("The capture device \"%s\" has no data link types.", interface_opts->name);
2092 exit_status = INVALID_DATA_LINK;
2095 if ((if_caps_queries & CAPS_QUERY_TIMESTAMP_TYPES) && caps->timestamp_types == NULL) {
2096 cmdarg_err("The capture device \"%s\" has no timestamp types.", interface_opts->name);
2097 exit_status = INVALID_TIMESTAMP_TYPE;
2100 if (interface_opts->monitor_mode)
2101 if_caps_queries |= CAPS_MONITOR_MODE;
2102 capture_opts_print_if_capabilities(caps, interface_opts->name, if_caps_queries);
2103 free_if_capabilities(caps);
2105 exit_status = EXIT_SUCCESS;
2110 * If the standard error isn't a terminal, don't print packet counts,
2111 * as they won't show up on the user's terminal and they'll get in
2112 * the way of error messages in the file (to which we assume the
2113 * standard error was redirected; if it's redirected to the null
2114 * device, there's no point in printing packet counts anyway).
2116 * Otherwise, if we're printing packet information and the standard
2117 * output is a terminal (which we assume means the standard output and
2118 * error are going to the same terminal), don't print packet counts,
2119 * as they'll get in the way of the packet information.
2121 * Otherwise, if the user specified -q, don't print packet counts.
2123 * Otherwise, print packet counts.
2125 * XXX - what if the user wants to do a live capture, doesn't want
2126 * to save it to a file, doesn't want information printed for each
2127 * packet, does want some "-z" statistic, and wants packet counts
2128 * so they know whether they're seeing any packets? -q will
2129 * suppress the information printed for each packet, but it'll
2130 * also suppress the packet counts.
2132 if (!ws_isatty(ws_fileno(stderr)))
2133 print_packet_counts = FALSE;
2134 else if (print_packet_info && ws_isatty(ws_fileno(stdout)))
2135 print_packet_counts = FALSE;
2137 print_packet_counts = FALSE;
2139 print_packet_counts = TRUE;
2141 if (print_packet_info) {
2142 if (!write_preamble(&cfile)) {
2143 show_print_file_io_error(errno);
2144 exit_status = INVALID_FILE;
2149 tshark_debug("tshark: performing live capture");
2151 * XXX - this returns FALSE if an error occurred, but it also
2152 * returns FALSE if the capture stops because a time limit
2153 * was reached (and possibly other limits), so we can't assume
2154 * it means an error.
2156 * The capture code is a bit twisty, so it doesn't appear to
2157 * be an easy fix. We just ignore the return value for now.
2158 * Instead, pass on the exit status from the capture child.
2161 exit_status = global_capture_session.fork_child_status;
2163 if (print_packet_info) {
2164 if (!write_finale()) {
2165 show_print_file_io_error(errno);
2169 /* No - complain. */
2170 cmdarg_err("This version of TShark was not built with support for capturing packets.");
2171 exit_status = INVALID_CAPTURE;
2178 if (cfile.provider.frames != NULL) {
2179 free_frame_data_sequence(cfile.provider.frames);
2180 cfile.provider.frames = NULL;
2183 draw_tap_listeners(TRUE);
2184 funnel_dump_all_text_windows();
2185 epan_free(cfile.epan);
2189 output_fields_free(output_fields);
2190 output_fields = NULL;
2193 destroy_print_stream(print_stream);
2195 capture_opts_cleanup(&global_capture_opts);
2197 col_cleanup(&cfile.cinfo);
2198 free_filter_lists();
2205 /*#define USE_BROKEN_G_MAIN_LOOP*/
2207 #ifdef USE_BROKEN_G_MAIN_LOOP
2210 gboolean loop_running = FALSE;
2212 guint32 packet_count = 0;
2215 typedef struct pipe_input_tag {
2218 ws_process_id *child_process;
2219 pipe_input_cb_t input_cb;
2220 guint pipe_input_id;
2222 GMutex *callback_running;
2226 static pipe_input_t pipe_input;
2229 /* The timer has expired, see if there's stuff to read from the pipe,
2230 if so, do the callback */
2232 pipe_timer_cb(gpointer data)
2238 pipe_input_t *pipe_input_p = data;
2239 gint iterations = 0;
2241 g_mutex_lock (pipe_input_p->callback_running);
2243 /* try to read data from the pipe only 5 times, to avoid blocking */
2244 while(iterations < 5) {
2245 /*g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_timer_cb: new iteration");*/
2247 /* Oddly enough although Named pipes don't work on win9x,
2248 PeekNamedPipe does !!! */
2249 handle = (HANDLE) _get_osfhandle (pipe_input_p->source);
2250 result = PeekNamedPipe(handle, NULL, 0, NULL, &avail, NULL);
2252 /* Get the child process exit status */
2253 GetExitCodeProcess((HANDLE)*(pipe_input_p->child_process),
2256 /* If the Peek returned an error, or there are bytes to be read
2257 or the childwatcher thread has terminated then call the normal
2259 if (!result || avail > 0 || childstatus != STILL_ACTIVE) {
2261 /*g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_timer_cb: data avail");*/
2263 /* And call the real handler */
2264 if (!pipe_input_p->input_cb(pipe_input_p->source, pipe_input_p->user_data)) {
2265 g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_timer_cb: input pipe closed, iterations: %u", iterations);
2266 /* pipe closed, return false so that the timer is stopped */
2267 g_mutex_unlock (pipe_input_p->callback_running);
2272 /*g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_timer_cb: no data avail");*/
2273 /* No data, stop now */
2280 /*g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_timer_cb: finished with iterations: %u, new timer", iterations);*/
2282 g_mutex_unlock (pipe_input_p->callback_running);
2284 /* we didn't stopped the timer, so let it run */
2291 pipe_input_set_handler(gint source, gpointer user_data, ws_process_id *child_process, pipe_input_cb_t input_cb)
2294 pipe_input.source = source;
2295 pipe_input.child_process = child_process;
2296 pipe_input.user_data = user_data;
2297 pipe_input.input_cb = input_cb;
2300 #if GLIB_CHECK_VERSION(2,31,0)
2301 pipe_input.callback_running = g_malloc(sizeof(GMutex));
2302 g_mutex_init(pipe_input.callback_running);
2304 pipe_input.callback_running = g_mutex_new();
2306 /* Tricky to use pipes in win9x, as no concept of wait. NT can
2307 do this but that doesn't cover all win32 platforms. GTK can do
2308 this but doesn't seem to work over processes. Attempt to do
2309 something similar here, start a timer and check for data on every
2311 /*g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_input_set_handler: new");*/
2312 pipe_input.pipe_input_id = g_timeout_add(200, pipe_timer_cb, &pipe_input);
2316 static const nstime_t *
2317 tshark_get_frame_ts(struct packet_provider_data *prov, guint32 frame_num)
2319 if (prov->ref && prov->ref->num == frame_num)
2320 return &prov->ref->abs_ts;
2322 if (prov->prev_dis && prov->prev_dis->num == frame_num)
2323 return &prov->prev_dis->abs_ts;
2325 if (prov->prev_cap && prov->prev_cap->num == frame_num)
2326 return &prov->prev_cap->abs_ts;
2329 frame_data *fd = frame_data_sequence_find(prov->frames, frame_num);
2331 return (fd) ? &fd->abs_ts : NULL;
2338 tshark_epan_new(capture_file *cf)
2340 static const struct packet_provider_funcs funcs = {
2341 tshark_get_frame_ts,
2342 cap_file_provider_get_interface_name,
2343 cap_file_provider_get_interface_description,
2347 return epan_new(&cf->provider, &funcs);
2357 #ifdef USE_TSHARK_SELECT
2361 struct sigaction action, oldaction;
2364 /* Create new dissection section. */
2365 epan_free(cfile.epan);
2366 cfile.epan = tshark_epan_new(&cfile);
2369 /* Catch a CTRL+C event and, if we get it, clean up and exit. */
2370 SetConsoleCtrlHandler(capture_cleanup, TRUE);
2372 /* Catch SIGINT and SIGTERM and, if we get either of them,
2373 clean up and exit. If SIGHUP isn't being ignored, catch
2374 it too and, if we get it, clean up and exit.
2376 We restart any read that was in progress, so that it doesn't
2377 disrupt reading from the sync pipe. The signal handler tells
2378 the capture child to finish; it will report that it finished,
2379 or will exit abnormally, so we'll stop reading from the sync
2380 pipe, pick up the exit status, and quit. */
2381 memset(&action, 0, sizeof(action));
2382 action.sa_handler = capture_cleanup;
2383 action.sa_flags = SA_RESTART;
2384 sigemptyset(&action.sa_mask);
2385 sigaction(SIGTERM, &action, NULL);
2386 sigaction(SIGINT, &action, NULL);
2387 sigaction(SIGHUP, NULL, &oldaction);
2388 if (oldaction.sa_handler == SIG_DFL)
2389 sigaction(SIGHUP, &action, NULL);
2392 /* Catch SIGINFO and, if we get it and we're capturing to a file in
2393 quiet mode, report the number of packets we've captured.
2395 Again, restart any read that was in progress, so that it doesn't
2396 disrupt reading from the sync pipe. */
2397 action.sa_handler = report_counts_siginfo;
2398 action.sa_flags = SA_RESTART;
2399 sigemptyset(&action.sa_mask);
2400 sigaction(SIGINFO, &action, NULL);
2401 #endif /* SIGINFO */
2404 global_capture_session.state = CAPTURE_PREPARING;
2406 /* Let the user know which interfaces were chosen. */
2407 for (i = 0; i < global_capture_opts.ifaces->len; i++) {
2408 interface_options *interface_opts;
2410 interface_opts = &g_array_index(global_capture_opts.ifaces, interface_options, i);
2411 interface_opts->descr = get_interface_descriptive_name(interface_opts->name);
2413 str = get_iface_list_string(&global_capture_opts, IFLIST_QUOTE_IF_DESCRIPTION);
2414 if (really_quiet == FALSE)
2415 fprintf(stderr, "Capturing on %s\n", str->str);
2417 g_string_free(str, TRUE);
2419 ret = sync_pipe_start(&global_capture_opts, &global_capture_session, &global_info_data, NULL);
2424 /* the actual capture loop
2426 * XXX - glib doesn't seem to provide any event based loop handling.
2428 * XXX - for whatever reason,
2429 * calling g_main_loop_new() ends up in 100% cpu load.
2431 * But that doesn't matter: in UNIX we can use select() to find an input
2432 * source with something to do.
2434 * But that doesn't matter because we're in a CLI (that doesn't need to
2435 * update a GUI or something at the same time) so it's OK if we block
2436 * trying to read from the pipe.
2438 * So all the stuff in USE_TSHARK_SELECT could be removed unless I'm
2439 * wrong (but I leave it there in case I am...).
2442 #ifdef USE_TSHARK_SELECT
2444 FD_SET(pipe_input.source, &readfds);
2447 loop_running = TRUE;
2451 while (loop_running)
2453 #ifdef USE_TSHARK_SELECT
2454 ret = select(pipe_input.source+1, &readfds, NULL, NULL, NULL);
2458 fprintf(stderr, "%s: %s\n", "select()", g_strerror(errno));
2460 } else if (ret == 1) {
2462 /* Call the real handler */
2463 if (!pipe_input.input_cb(pipe_input.source, pipe_input.user_data)) {
2464 g_log(NULL, G_LOG_LEVEL_DEBUG, "input pipe closed");
2467 #ifdef USE_TSHARK_SELECT
2472 CATCH(OutOfMemoryError) {
2476 "Sorry, but TShark has to terminate now.\n"
2478 "More information and workarounds can be found at\n"
2479 "https://wiki.wireshark.org/KnownBugs/OutOfMemory\n");
2486 /* capture child detected an error */
2488 capture_input_error_message(capture_session *cap_session _U_, char *error_msg, char *secondary_error_msg)
2490 cmdarg_err("%s", error_msg);
2491 cmdarg_err_cont("%s", secondary_error_msg);
2495 /* capture child detected an capture filter related error */
2497 capture_input_cfilter_error_message(capture_session *cap_session, guint i, char *error_message)
2499 capture_options *capture_opts = cap_session->capture_opts;
2500 dfilter_t *rfcode = NULL;
2501 interface_options *interface_opts;
2503 g_assert(i < capture_opts->ifaces->len);
2504 interface_opts = &g_array_index(capture_opts->ifaces, interface_options, i);
2506 if (dfilter_compile(interface_opts->cfilter, &rfcode, NULL) && rfcode != NULL) {
2508 "Invalid capture filter \"%s\" for interface '%s'.\n"
2510 "That string looks like a valid display filter; however, it isn't a valid\n"
2511 "capture filter (%s).\n"
2513 "Note that display filters and capture filters don't have the same syntax,\n"
2514 "so you can't use most display filter expressions as capture filters.\n"
2516 "See the User's Guide for a description of the capture filter syntax.",
2517 interface_opts->cfilter, interface_opts->descr, error_message);
2518 dfilter_free(rfcode);
2521 "Invalid capture filter \"%s\" for interface '%s'.\n"
2523 "That string isn't a valid capture filter (%s).\n"
2524 "See the User's Guide for a description of the capture filter syntax.",
2525 interface_opts->cfilter, interface_opts->descr, error_message);
2530 /* capture child tells us we have a new (or the first) capture file */
2532 capture_input_new_file(capture_session *cap_session, gchar *new_file)
2534 capture_options *capture_opts = cap_session->capture_opts;
2535 capture_file *cf = (capture_file *) cap_session->cf;
2536 gboolean is_tempfile;
2539 if (cap_session->state == CAPTURE_PREPARING) {
2540 g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_MESSAGE, "Capture started.");
2542 g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_MESSAGE, "File: \"%s\"", new_file);
2544 g_assert(cap_session->state == CAPTURE_PREPARING || cap_session->state == CAPTURE_RUNNING);
2546 /* free the old filename */
2547 if (capture_opts->save_file != NULL) {
2549 /* we start a new capture file, close the old one (if we had one before) */
2550 if (cf->state != FILE_CLOSED) {
2551 if (cf->provider.wth != NULL) {
2552 wtap_close(cf->provider.wth);
2553 cf->provider.wth = NULL;
2555 cf->state = FILE_CLOSED;
2558 g_free(capture_opts->save_file);
2559 is_tempfile = FALSE;
2561 epan_free(cf->epan);
2562 cf->epan = tshark_epan_new(cf);
2564 /* we didn't had a save_file before, must be a tempfile */
2568 /* save the new filename */
2569 capture_opts->save_file = g_strdup(new_file);
2571 /* if we are in real-time mode, open the new file now */
2572 if (do_dissection) {
2573 /* this is probably unecessary, but better safe than sorry */
2574 ((capture_file *)cap_session->cf)->open_type = WTAP_TYPE_AUTO;
2575 /* Attempt to open the capture file and set up to read from it. */
2576 switch(cf_open((capture_file *)cap_session->cf, capture_opts->save_file, WTAP_TYPE_AUTO, is_tempfile, &err)) {
2580 /* Don't unlink (delete) the save file - leave it around,
2581 for debugging purposes. */
2582 g_free(capture_opts->save_file);
2583 capture_opts->save_file = NULL;
2588 cap_session->state = CAPTURE_RUNNING;
2594 /* capture child tells us we have new packets to read */
2596 capture_input_new_packets(capture_session *cap_session, int to_read)
2602 capture_file *cf = (capture_file *)cap_session->cf;
2603 gboolean filtering_tap_listeners;
2608 * Prevent a SIGINFO handler from writing to the standard error while
2609 * we're doing so or writing to the standard output; instead, have it
2610 * just set a flag telling us to print that information when we're done.
2613 #endif /* SIGINFO */
2615 /* Do we have any tap listeners with filters? */
2616 filtering_tap_listeners = have_filtering_tap_listeners();
2618 /* Get the union of the flags for all tap listeners. */
2619 tap_flags = union_of_tap_listener_flags();
2621 if (do_dissection) {
2622 gboolean create_proto_tree;
2623 epan_dissect_t *edt;
2626 * Determine whether we need to create a protocol tree.
2629 * we're going to apply a read filter;
2631 * we're going to apply a display filter;
2633 * we're going to print the protocol tree;
2635 * one of the tap listeners is going to apply a filter;
2637 * one of the tap listeners requires a protocol tree;
2639 * a postdissector wants field values or protocols
2640 * on the first pass;
2642 * we have custom columns (which require field values, which
2643 * currently requires that we build a protocol tree).
2646 (cf->rfcode || cf->dfcode || print_details || filtering_tap_listeners ||
2647 (tap_flags & TL_REQUIRES_PROTO_TREE) || postdissectors_want_hfids() ||
2648 have_custom_cols(&cf->cinfo) || dissect_color);
2650 /* The protocol tree will be "visible", i.e., printed, only if we're
2651 printing packet details, which is true if we're printing stuff
2652 ("print_packet_info" is true) and we're in verbose mode
2653 ("packet_details" is true). */
2654 edt = epan_dissect_new(cf->epan, create_proto_tree, print_packet_info && print_details);
2656 while (to_read-- && cf->provider.wth) {
2657 wtap_cleareof(cf->provider.wth);
2658 ret = wtap_read(cf->provider.wth, &err, &err_info, &data_offset);
2659 reset_epan_mem(cf, edt, create_proto_tree, print_packet_info && print_details);
2661 /* read from file failed, tell the capture child to stop */
2662 sync_pipe_stop(cap_session);
2663 wtap_close(cf->provider.wth);
2664 cf->provider.wth = NULL;
2666 ret = process_packet_single_pass(cf, edt, data_offset,
2667 wtap_get_rec(cf->provider.wth),
2668 wtap_get_buf_ptr(cf->provider.wth), tap_flags);
2671 /* packet successfully read and gone through the "Read Filter" */
2676 epan_dissect_free(edt);
2680 * Dumpcap's doing all the work; we're not doing any dissection.
2681 * Count all the packets it wrote.
2683 packet_count += to_read;
2686 if (print_packet_counts) {
2687 /* We're printing packet counts. */
2688 if (packet_count != 0) {
2689 fprintf(stderr, "\r%u ", packet_count);
2690 /* stderr could be line buffered */
2697 * Allow SIGINFO handlers to write.
2702 * If a SIGINFO handler asked us to write out capture counts, do so.
2706 #endif /* SIGINFO */
2712 if ((print_packet_counts == FALSE) && (really_quiet == FALSE)) {
2713 /* Report the count only if we aren't printing a packet count
2714 as packets arrive. */
2715 fprintf(stderr, "%u packet%s captured\n", packet_count,
2716 plurality(packet_count, "", "s"));
2719 infoprint = FALSE; /* we just reported it */
2720 #endif /* SIGINFO */
2725 report_counts_siginfo(int signum _U_)
2727 int sav_errno = errno;
2728 /* If we've been told to delay printing, just set a flag asking
2729 that we print counts (if we're supposed to), otherwise print
2730 the count of packets captured (if we're supposed to). */
2737 #endif /* SIGINFO */
2740 /* capture child detected any packet drops? */
2742 capture_input_drops(capture_session *cap_session _U_, guint32 dropped)
2744 if (print_packet_counts) {
2745 /* We're printing packet counts to stderr.
2746 Send a newline so that we move to the line after the packet count. */
2747 fprintf(stderr, "\n");
2751 /* We're printing packet counts to stderr.
2752 Send a newline so that we move to the line after the packet count. */
2753 fprintf(stderr, "%u packet%s dropped\n", dropped, plurality(dropped, "", "s"));
2759 * Capture child closed its side of the pipe, report any error and
2760 * do the required cleanup.
2763 capture_input_closed(capture_session *cap_session, gchar *msg)
2765 capture_file *cf = (capture_file *) cap_session->cf;
2768 fprintf(stderr, "tshark: %s\n", msg);
2772 if (cf != NULL && cf->provider.wth != NULL) {
2773 wtap_close(cf->provider.wth);
2774 if (cf->is_tempfile) {
2775 ws_unlink(cf->filename);
2778 #ifdef USE_BROKEN_G_MAIN_LOOP
2779 /*g_main_loop_quit(loop);*/
2780 g_main_loop_quit(loop);
2782 loop_running = FALSE;
2791 capture_cleanup(DWORD ctrltype _U_)
2793 /* CTRL_C_EVENT is sort of like SIGINT, CTRL_BREAK_EVENT is unique to
2794 Windows, CTRL_CLOSE_EVENT is sort of like SIGHUP, CTRL_LOGOFF_EVENT
2795 is also sort of like SIGHUP, and CTRL_SHUTDOWN_EVENT is sort of
2796 like SIGTERM at least when the machine's shutting down.
2798 For now, we handle them all as indications that we should clean up
2799 and quit, just as we handle SIGINT, SIGHUP, and SIGTERM in that
2802 We must return TRUE so that no other handler - such as one that would
2803 terminate the process - gets called.
2805 XXX - for some reason, typing ^C to TShark, if you run this in
2806 a Cygwin console window in at least some versions of Cygwin,
2807 causes TShark to terminate immediately; this routine gets
2808 called, but the main loop doesn't get a chance to run and
2809 exit cleanly, at least if this is compiled with Microsoft Visual
2810 C++ (i.e., it's a property of the Cygwin console window or Bash;
2811 it happens if TShark is not built with Cygwin - for all I know,
2812 building it with Cygwin may make the problem go away). */
2814 /* tell the capture child to stop */
2815 sync_pipe_stop(&global_capture_session);
2817 /* don't stop our own loop already here, otherwise status messages and
2818 * cleanup wouldn't be done properly. The child will indicate the stop of
2819 * everything by calling capture_input_closed() later */
2825 capture_cleanup(int signum _U_)
2827 /* tell the capture child to stop */
2828 sync_pipe_stop(&global_capture_session);
2830 /* don't stop our own loop already here, otherwise status messages and
2831 * cleanup wouldn't be done properly. The child will indicate the stop of
2832 * everything by calling capture_input_closed() later */
2835 #endif /* HAVE_LIBPCAP */
2838 process_packet_first_pass(capture_file *cf, epan_dissect_t *edt,
2839 gint64 offset, wtap_rec *rec,
2846 /* The frame number of this packet is one more than the count of
2847 frames in this packet. */
2848 framenum = cf->count + 1;
2850 /* If we're not running a display filter and we're not printing any
2851 packet information, we don't need to do a dissection. This means
2852 that all packets can be marked as 'passed'. */
2855 frame_data_init(&fdlocal, framenum, rec, offset, cum_bytes);
2857 /* If we're going to run a read filter or a display filter, set up to
2858 do a dissection and do so. (This is the first pass of two passes
2859 over the packets, so we will not be printing any information
2860 from the dissection or running taps on the packet; if we're doing
2861 any of that, we'll do it in the second pass.) */
2863 if (gbl_resolv_flags.mac_name || gbl_resolv_flags.network_name ||
2864 gbl_resolv_flags.transport_name)
2865 /* Grab any resolved addresses */
2866 host_name_lookup_process();
2868 /* If we're running a read filter, prime the epan_dissect_t with that
2871 epan_dissect_prime_with_dfilter(edt, cf->rfcode);
2874 epan_dissect_prime_with_dfilter(edt, cf->dfcode);
2876 /* This is the first pass, so prime the epan_dissect_t with the
2877 hfids postdissectors want on the first pass. */
2878 prime_epan_dissect_with_postdissector_wanted_hfids(edt);
2880 frame_data_set_before_dissect(&fdlocal, &cf->elapsed_time,
2881 &cf->provider.ref, cf->provider.prev_dis);
2882 if (cf->provider.ref == &fdlocal) {
2883 ref_frame = fdlocal;
2884 cf->provider.ref = &ref_frame;
2887 epan_dissect_run(edt, cf->cd_t, rec,
2888 frame_tvbuff_new(&cf->provider, &fdlocal, pd),
2891 /* Run the read filter if we have one. */
2893 passed = dfilter_apply_edt(cf->rfcode, edt);
2897 frame_data_set_after_dissect(&fdlocal, &cum_bytes);
2898 cf->provider.prev_cap = cf->provider.prev_dis = frame_data_sequence_add(cf->provider.frames, &fdlocal);
2900 /* If we're not doing dissection then there won't be any dependent frames.
2901 * More importantly, edt.pi.dependent_frames won't be initialized because
2902 * epan hasn't been initialized.
2903 * if we *are* doing dissection, then mark the dependent frames, but only
2904 * if a display filter was given and it matches this packet.
2906 if (edt && cf->dfcode) {
2907 if (dfilter_apply_edt(cf->dfcode, edt)) {
2908 g_slist_foreach(edt->pi.dependent_frames, find_and_mark_frame_depended_upon, cf->provider.frames);
2914 /* if we don't add it to the frame_data_sequence, clean it up right now
2916 frame_data_destroy(&fdlocal);
2920 epan_dissect_reset(edt);
2926 process_packet_second_pass(capture_file *cf, epan_dissect_t *edt,
2927 frame_data *fdata, wtap_rec *rec,
2928 Buffer *buf, guint tap_flags)
2933 /* If we're not running a display filter and we're not printing any
2934 packet information, we don't need to do a dissection. This means
2935 that all packets can be marked as 'passed'. */
2938 /* If we're going to print packet information, or we're going to
2939 run a read filter, or we're going to process taps, set up to
2940 do a dissection and do so. (This is the second pass of two
2941 passes over the packets; that's the pass where we print
2942 packet information or run taps.) */
2944 if (gbl_resolv_flags.mac_name || gbl_resolv_flags.network_name ||
2945 gbl_resolv_flags.transport_name)
2946 /* Grab any resolved addresses */
2947 host_name_lookup_process();
2949 /* If we're running a display filter, prime the epan_dissect_t with that
2952 epan_dissect_prime_with_dfilter(edt, cf->dfcode);
2954 col_custom_prime_edt(edt, &cf->cinfo);
2956 /* We only need the columns if either
2957 1) some tap needs the columns
2959 2) we're printing packet info but we're *not* verbose; in verbose
2960 mode, we print the protocol tree, not the protocol summary.
2962 if ((tap_flags & TL_REQUIRES_COLUMNS) || (print_packet_info && print_summary) || output_fields_has_cols(output_fields))
2967 frame_data_set_before_dissect(fdata, &cf->elapsed_time,
2968 &cf->provider.ref, cf->provider.prev_dis);
2969 if (cf->provider.ref == fdata) {
2971 cf->provider.ref = &ref_frame;
2974 if (dissect_color) {
2975 color_filters_prime_edt(edt);
2976 fdata->flags.need_colorize = 1;
2979 epan_dissect_run_with_taps(edt, cf->cd_t, rec,
2980 frame_tvbuff_new_buffer(&cf->provider, fdata, buf),
2983 /* Run the read/display filter if we have one. */
2985 passed = dfilter_apply_edt(cf->dfcode, edt);
2989 frame_data_set_after_dissect(fdata, &cum_bytes);
2990 /* Process this packet. */
2991 if (print_packet_info) {
2992 /* We're printing packet information; print the information for
2994 print_packet(cf, edt);
2996 /* If we're doing "line-buffering", flush the standard output
2997 after every packet. See the comment above, for the "-l"
2998 option, for an explanation of why we do that. */
3002 if (ferror(stdout)) {
3003 show_print_file_io_error(errno);
3007 cf->provider.prev_dis = fdata;
3009 cf->provider.prev_cap = fdata;
3012 epan_dissect_reset(edt);
3014 return passed || fdata->flags.dependent_of_displayed;
3018 process_cap_file(capture_file *cf, char *save_file, int out_file_type,
3019 gboolean out_file_name_res, int max_packet_count, gint64 max_byte_count)
3021 gboolean success = TRUE;
3023 int snapshot_length;
3026 int err = 0, err_pass1 = 0;
3027 gchar *err_info = NULL, *err_info_pass1 = NULL;
3029 gboolean filtering_tap_listeners;
3031 GArray *shb_hdrs = NULL;
3032 wtapng_iface_descriptions_t *idb_inf = NULL;
3033 GArray *nrb_hdrs = NULL;
3036 epan_dissect_t *edt = NULL;
3037 char *shb_user_appl;
3039 wtap_rec_init(&rec);
3041 idb_inf = wtap_file_get_idb_info(cf->provider.wth);
3042 #ifdef PCAP_NG_DEFAULT
3043 if (idb_inf->interface_data->len > 1) {
3044 linktype = WTAP_ENCAP_PER_PACKET;
3046 linktype = wtap_file_encap(cf->provider.wth);
3049 linktype = wtap_file_encap(cf->provider.wth);
3051 if (save_file != NULL) {
3052 /* Set up to write to the capture file. */
3053 snapshot_length = wtap_snapshot_length(cf->provider.wth);
3054 if (snapshot_length == 0) {
3055 /* Snapshot length of input file not known. */
3056 snapshot_length = WTAP_MAX_PACKET_SIZE_STANDARD;
3058 tshark_debug("tshark: snapshot_length = %d", snapshot_length);
3060 shb_hdrs = wtap_file_get_shb_for_new_file(cf->provider.wth);
3061 nrb_hdrs = wtap_file_get_nrb_for_new_file(cf->provider.wth);
3063 /* If we don't have an application name add Tshark */
3064 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) {
3065 /* this is free'd by wtap_block_free() later */
3066 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());
3069 if (linktype != WTAP_ENCAP_PER_PACKET &&
3070 out_file_type == WTAP_FILE_TYPE_SUBTYPE_PCAP) {
3071 tshark_debug("tshark: writing PCAP format to %s", save_file);
3072 if (strcmp(save_file, "-") == 0) {
3073 /* Write to the standard output. */
3074 pdh = wtap_dump_open_stdout(out_file_type, linktype,
3075 snapshot_length, FALSE /* compressed */, &err);
3077 pdh = wtap_dump_open(save_file, out_file_type, linktype,
3078 snapshot_length, FALSE /* compressed */, &err);
3082 tshark_debug("tshark: writing format type %d, to %s", out_file_type, save_file);
3083 if (strcmp(save_file, "-") == 0) {
3084 /* Write to the standard output. */
3085 pdh = wtap_dump_open_stdout_ng(out_file_type, linktype,
3086 snapshot_length, FALSE /* compressed */, shb_hdrs, idb_inf, nrb_hdrs, &err);
3088 pdh = wtap_dump_open_ng(save_file, out_file_type, linktype,
3089 snapshot_length, FALSE /* compressed */, shb_hdrs, idb_inf, nrb_hdrs, &err);
3097 /* We couldn't set up to write to the capture file. */
3098 cfile_dump_open_failure_message("TShark", save_file, err, out_file_type);
3103 /* Set up to print packet information. */
3104 if (print_packet_info) {
3105 if (!write_preamble(cf)) {
3106 show_print_file_io_error(errno);
3116 /* Do we have any tap listeners with filters? */
3117 filtering_tap_listeners = have_filtering_tap_listeners();
3119 /* Get the union of the flags for all tap listeners. */
3120 tap_flags = union_of_tap_listener_flags();
3122 if (perform_two_pass_analysis) {
3125 tshark_debug("tshark: perform_two_pass_analysis, do_dissection=%s", do_dissection ? "TRUE" : "FALSE");
3127 /* Allocate a frame_data_sequence for all the frames. */
3128 cf->provider.frames = new_frame_data_sequence();
3130 if (do_dissection) {
3131 gboolean create_proto_tree;
3134 * Determine whether we need to create a protocol tree.
3137 * we're going to apply a read filter;
3139 * we're going to apply a display filter;
3141 * a postdissector wants field values or protocols
3142 * on the first pass.
3145 (cf->rfcode != NULL || cf->dfcode != NULL || postdissectors_want_hfids() || dissect_color);
3147 tshark_debug("tshark: create_proto_tree = %s", create_proto_tree ? "TRUE" : "FALSE");
3149 /* We're not going to display the protocol tree on this pass,
3150 so it's not going to be "visible". */
3151 edt = epan_dissect_new(cf->epan, create_proto_tree, FALSE);
3154 tshark_debug("tshark: reading records for first pass");
3155 while (wtap_read(cf->provider.wth, &err, &err_info, &data_offset)) {
3156 if (process_packet_first_pass(cf, edt, data_offset, wtap_get_rec(cf->provider.wth),
3157 wtap_get_buf_ptr(cf->provider.wth))) {
3158 /* Stop reading if we have the maximum number of packets;
3159 * When the -c option has not been used, max_packet_count
3160 * starts at 0, which practically means, never stop reading.
3161 * (unless we roll over max_packet_count ?)
3163 if ( (--max_packet_count == 0) || (max_byte_count != 0 && data_offset >= max_byte_count)) {
3164 tshark_debug("tshark: max_packet_count (%d) or max_byte_count (%" G_GINT64_MODIFIER "d/%" G_GINT64_MODIFIER "d) reached",
3165 max_packet_count, data_offset, max_byte_count);
3166 err = 0; /* This is not an error */
3173 * If we got a read error on the first pass, remember the error, so
3174 * but do the second pass, so we can at least process the packets we
3175 * read, and then report the first-pass error after the second pass
3176 * (and before we report any second-pass errors), so all the the
3177 * errors show up at the end.
3181 err_info_pass1 = err_info;
3187 epan_dissect_free(edt);
3191 /* Close the sequential I/O side, to free up memory it requires. */
3192 wtap_sequential_close(cf->provider.wth);
3194 /* Allow the protocol dissectors to free up memory that they
3195 * don't need after the sequential run-through of the packets. */
3196 postseq_cleanup_all_protocols();
3198 cf->provider.prev_dis = NULL;
3199 cf->provider.prev_cap = NULL;
3200 ws_buffer_init(&buf, 1500);
3202 tshark_debug("tshark: done with first pass");
3204 if (do_dissection) {
3205 gboolean create_proto_tree;
3208 * Determine whether we need to create a protocol tree.
3211 * we're going to apply a display filter;
3213 * we're going to print the protocol tree;
3215 * one of the tap listeners requires a protocol tree;
3217 * we have custom columns (which require field values, which
3218 * currently requires that we build a protocol tree).
3221 (cf->dfcode || print_details || filtering_tap_listeners ||
3222 (tap_flags & TL_REQUIRES_PROTO_TREE) || have_custom_cols(&cf->cinfo) || dissect_color);
3224 tshark_debug("tshark: create_proto_tree = %s", create_proto_tree ? "TRUE" : "FALSE");
3226 /* The protocol tree will be "visible", i.e., printed, only if we're
3227 printing packet details, which is true if we're printing stuff
3228 ("print_packet_info" is true) and we're in verbose mode
3229 ("packet_details" is true). */
3230 edt = epan_dissect_new(cf->epan, create_proto_tree, print_packet_info && print_details);
3233 for (framenum = 1; err == 0 && framenum <= cf->count; framenum++) {
3234 fdata = frame_data_sequence_find(cf->provider.frames, framenum);
3235 if (wtap_seek_read(cf->provider.wth, fdata->file_off, &rec, &buf, &err,
3237 tshark_debug("tshark: invoking process_packet_second_pass() for frame #%d", framenum);
3238 if (process_packet_second_pass(cf, edt, fdata, &rec, &buf,
3240 /* Either there's no read filtering or this packet passed the
3241 filter, so, if we're writing to a capture file, write
3244 tshark_debug("tshark: writing packet #%d to outfile", framenum);
3245 if (!wtap_dump(pdh, &rec, ws_buffer_start_ptr(&buf), &err, &err_info)) {
3246 /* Error writing to a capture file */
3247 tshark_debug("tshark: error writing to a capture file (%d)", err);
3249 /* Report the error.
3250 XXX - framenum is not necessarily the frame number in
3251 the input file if there was a read filter. */
3252 cfile_write_failure_message("TShark", cf->filename, save_file,
3253 err, err_info, framenum,
3255 wtap_dump_close(pdh, &err);
3256 wtap_block_array_free(shb_hdrs);
3257 wtap_block_array_free(nrb_hdrs);
3266 epan_dissect_free(edt);
3270 ws_buffer_free(&buf);
3272 tshark_debug("tshark: done with second pass");
3275 /* !perform_two_pass_analysis */
3277 gboolean create_proto_tree = FALSE;
3278 tshark_debug("tshark: perform one pass analysis, do_dissection=%s", do_dissection ? "TRUE" : "FALSE");
3280 if (do_dissection) {
3282 * Determine whether we need to create a protocol tree.
3285 * we're going to apply a read filter;
3287 * we're going to apply a display filter;
3289 * we're going to print the protocol tree;
3291 * one of the tap listeners is going to apply a filter;
3293 * one of the tap listeners requires a protocol tree;
3295 * a postdissector wants field values or protocols
3296 * on the first pass;
3298 * we have custom columns (which require field values, which
3299 * currently requires that we build a protocol tree).
3302 (cf->rfcode || cf->dfcode || print_details || filtering_tap_listeners ||
3303 (tap_flags & TL_REQUIRES_PROTO_TREE) || postdissectors_want_hfids() ||
3304 have_custom_cols(&cf->cinfo) || dissect_color);
3306 tshark_debug("tshark: create_proto_tree = %s", create_proto_tree ? "TRUE" : "FALSE");
3308 /* The protocol tree will be "visible", i.e., printed, only if we're
3309 printing packet details, which is true if we're printing stuff
3310 ("print_packet_info" is true) and we're in verbose mode
3311 ("packet_details" is true). */
3312 edt = epan_dissect_new(cf->epan, create_proto_tree, print_packet_info && print_details);
3315 while (wtap_read(cf->provider.wth, &err, &err_info, &data_offset)) {
3318 tshark_debug("tshark: processing packet #%d", framenum);
3320 reset_epan_mem(cf, edt, create_proto_tree, print_packet_info && print_details);
3322 if (process_packet_single_pass(cf, edt, data_offset, wtap_get_rec(cf->provider.wth),
3323 wtap_get_buf_ptr(cf->provider.wth), tap_flags)) {
3324 /* Either there's no read filtering or this packet passed the
3325 filter, so, if we're writing to a capture file, write
3328 tshark_debug("tshark: writing packet #%d to outfile", framenum);
3329 if (!wtap_dump(pdh, wtap_get_rec(cf->provider.wth), wtap_get_buf_ptr(cf->provider.wth), &err, &err_info)) {
3330 /* Error writing to a capture file */
3331 tshark_debug("tshark: error writing to a capture file (%d)", err);
3332 cfile_write_failure_message("TShark", cf->filename, save_file,
3333 err, err_info, framenum, out_file_type);
3334 wtap_dump_close(pdh, &err);
3335 wtap_block_array_free(shb_hdrs);
3336 wtap_block_array_free(nrb_hdrs);
3341 /* Stop reading if we have the maximum number of packets;
3342 * When the -c option has not been used, max_packet_count
3343 * starts at 0, which practically means, never stop reading.
3344 * (unless we roll over max_packet_count ?)
3346 if ( (--max_packet_count == 0) || (max_byte_count != 0 && data_offset >= max_byte_count)) {
3347 tshark_debug("tshark: max_packet_count (%d) or max_byte_count (%" G_GINT64_MODIFIER "d/%" G_GINT64_MODIFIER "d) reached",
3348 max_packet_count, data_offset, max_byte_count);
3349 err = 0; /* This is not an error */
3355 epan_dissect_free(edt);
3360 wtap_rec_cleanup(&rec);
3362 if (err != 0 || err_pass1 != 0) {
3363 tshark_debug("tshark: something failed along the line (%d)", err);
3365 * Print a message noting that the read failed somewhere along the line.
3367 * If we're printing packet data, and the standard output and error are
3368 * going to the same place, flush the standard output, so everything
3369 * buffered up is written, and then print a newline to the standard error
3370 * before printing the error message, to separate it from the packet
3371 * data. (Alas, that only works on UN*X; st_dev is meaningless, and
3372 * the _fstat() documentation at Microsoft doesn't indicate whether
3373 * st_ino is even supported.)
3376 if (print_packet_info) {
3377 ws_statb64 stat_stdout, stat_stderr;
3379 if (ws_fstat64(1, &stat_stdout) == 0 && ws_fstat64(2, &stat_stderr) == 0) {
3380 if (stat_stdout.st_dev == stat_stderr.st_dev &&
3381 stat_stdout.st_ino == stat_stderr.st_ino) {
3383 fprintf(stderr, "\n");
3388 if (err_pass1 != 0) {
3389 /* Error on pass 1 of two-pass processing. */
3390 cfile_read_failure_message("TShark", cf->filename, err_pass1,
3394 /* Error on pass 2 of two-pass processing or on the only pass of
3395 one-pass processing. */
3396 cfile_read_failure_message("TShark", cf->filename, err, err_info);
3400 if (save_file != NULL) {
3401 if (pdh && out_file_name_res) {
3402 if (!wtap_dump_set_addrinfo_list(pdh, get_addrinfo_list())) {
3403 cmdarg_err("The file format \"%s\" doesn't support name resolution information.",
3404 wtap_file_type_subtype_short_string(out_file_type));
3407 /* Now close the capture file. */
3408 if (!wtap_dump_close(pdh, &err)) {
3409 cfile_close_failure_message(save_file, err);
3413 if (print_packet_info) {
3414 if (!write_finale()) {
3415 show_print_file_io_error(errno);
3422 wtap_close(cf->provider.wth);
3423 cf->provider.wth = NULL;
3425 wtap_block_array_free(shb_hdrs);
3426 wtap_block_array_free(nrb_hdrs);
3432 process_packet_single_pass(capture_file *cf, epan_dissect_t *edt, gint64 offset,
3433 wtap_rec *rec, const guchar *pd,
3440 /* Count this packet. */
3443 /* If we're not running a display filter and we're not printing any
3444 packet information, we don't need to do a dissection. This means
3445 that all packets can be marked as 'passed'. */
3448 frame_data_init(&fdata, cf->count, rec, offset, cum_bytes);
3450 /* If we're going to print packet information, or we're going to
3451 run a read filter, or we're going to process taps, set up to
3452 do a dissection and do so. (This is the one and only pass
3453 over the packets, so, if we'll be printing packet information
3454 or running taps, we'll be doing it here.) */
3456 if (print_packet_info && (gbl_resolv_flags.mac_name || gbl_resolv_flags.network_name ||
3457 gbl_resolv_flags.transport_name))
3458 /* Grab any resolved addresses */
3459 host_name_lookup_process();
3461 /* If we're running a filter, prime the epan_dissect_t with that
3464 epan_dissect_prime_with_dfilter(edt, cf->dfcode);
3466 /* This is the first and only pass, so prime the epan_dissect_t
3467 with the hfids postdissectors want on the first pass. */
3468 prime_epan_dissect_with_postdissector_wanted_hfids(edt);
3470 col_custom_prime_edt(edt, &cf->cinfo);
3472 /* We only need the columns if either
3473 1) some tap needs the columns
3475 2) we're printing packet info but we're *not* verbose; in verbose
3476 mode, we print the protocol tree, not the protocol summary.
3478 3) there is a column mapped as an individual field */
3479 if ((tap_flags & TL_REQUIRES_COLUMNS) || (print_packet_info && print_summary) || output_fields_has_cols(output_fields))
3484 frame_data_set_before_dissect(&fdata, &cf->elapsed_time,
3485 &cf->provider.ref, cf->provider.prev_dis);
3486 if (cf->provider.ref == &fdata) {
3488 cf->provider.ref = &ref_frame;
3491 if (dissect_color) {
3492 color_filters_prime_edt(edt);
3493 fdata.flags.need_colorize = 1;
3496 epan_dissect_run_with_taps(edt, cf->cd_t, rec,
3497 frame_tvbuff_new(&cf->provider, &fdata, pd),
3500 /* Run the filter if we have it. */
3502 passed = dfilter_apply_edt(cf->dfcode, edt);
3506 frame_data_set_after_dissect(&fdata, &cum_bytes);
3508 /* Process this packet. */
3509 if (print_packet_info) {
3510 /* We're printing packet information; print the information for
3513 print_packet(cf, edt);
3515 /* If we're doing "line-buffering", flush the standard output
3516 after every packet. See the comment above, for the "-l"
3517 option, for an explanation of why we do that. */
3521 if (ferror(stdout)) {
3522 show_print_file_io_error(errno);
3527 /* this must be set after print_packet() [bug #8160] */
3528 prev_dis_frame = fdata;
3529 cf->provider.prev_dis = &prev_dis_frame;
3532 prev_cap_frame = fdata;
3533 cf->provider.prev_cap = &prev_cap_frame;
3536 epan_dissect_reset(edt);
3537 frame_data_destroy(&fdata);
3543 write_preamble(capture_file *cf)
3545 switch (output_action) {
3548 return print_preamble(print_stream, cf->filename, get_ws_vcs_version_info());
3552 write_pdml_preamble(stdout, cf->filename);
3554 write_psml_preamble(&cf->cinfo, stdout);
3555 return !ferror(stdout);
3558 write_fields_preamble(output_fields, stdout);
3559 return !ferror(stdout);
3562 case WRITE_JSON_RAW:
3563 write_json_preamble(stdout);
3564 return !ferror(stdout);
3567 return !ferror(stdout);
3570 g_assert_not_reached();
3576 get_line_buf(size_t len)
3578 static char *line_bufp = NULL;
3579 static size_t line_buf_len = 256;
3580 size_t new_line_buf_len;
3582 for (new_line_buf_len = line_buf_len; len > new_line_buf_len;
3583 new_line_buf_len *= 2)
3585 if (line_bufp == NULL) {
3586 line_buf_len = new_line_buf_len;
3587 line_bufp = (char *)g_malloc(line_buf_len + 1);
3589 if (new_line_buf_len > line_buf_len) {
3590 line_buf_len = new_line_buf_len;
3591 line_bufp = (char *)g_realloc(line_bufp, line_buf_len + 1);
3598 put_string(char *dest, const char *str, size_t str_len)
3600 memcpy(dest, str, str_len);
3601 dest[str_len] = '\0';
3605 put_spaces_string(char *dest, const char *str, size_t str_len, size_t str_with_spaces)
3609 for (i = str_len; i < str_with_spaces; i++)
3612 put_string(dest, str, str_len);
3616 put_string_spaces(char *dest, const char *str, size_t str_len, size_t str_with_spaces)
3620 memcpy(dest, str, str_len);
3621 for (i = str_len; i < str_with_spaces; i++)
3624 dest[str_with_spaces] = '\0';
3628 print_columns(capture_file *cf, const epan_dissect_t *edt)
3635 col_item_t* col_item;
3636 gchar str_format[11];
3637 const color_filter_t *color_filter = NULL;
3639 line_bufp = get_line_buf(256);
3644 color_filter = edt->pi.fd->color_filter;
3646 for (i = 0; i < cf->cinfo.num_cols; i++) {
3647 col_item = &cf->cinfo.columns[i];
3648 /* Skip columns not marked as visible. */
3649 if (!get_column_visible(i))
3651 switch (col_item->col_fmt) {
3653 column_len = col_len = strlen(col_item->col_data);
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_ABS_YMD_TIME: /* XXX - wider */
3664 case COL_ABS_YDOY_TIME: /* XXX - wider */
3666 case COL_UTC_YMD_TIME: /* XXX - wider */
3667 case COL_UTC_YDOY_TIME: /* XXX - wider */
3668 column_len = col_len = strlen(col_item->col_data);
3669 if (column_len < 10)
3671 line_bufp = get_line_buf(buf_offset + column_len);
3672 put_spaces_string(line_bufp + buf_offset, col_item->col_data, col_len, column_len);
3678 case COL_DEF_DL_SRC:
3679 case COL_RES_DL_SRC:
3680 case COL_UNRES_DL_SRC:
3681 case COL_DEF_NET_SRC:
3682 case COL_RES_NET_SRC:
3683 case COL_UNRES_NET_SRC:
3684 column_len = col_len = strlen(col_item->col_data);
3685 if (column_len < 12)
3687 line_bufp = get_line_buf(buf_offset + column_len);
3688 put_spaces_string(line_bufp + buf_offset, col_item->col_data, col_len, column_len);
3694 case COL_DEF_DL_DST:
3695 case COL_RES_DL_DST:
3696 case COL_UNRES_DL_DST:
3697 case COL_DEF_NET_DST:
3698 case COL_RES_NET_DST:
3699 case COL_UNRES_NET_DST:
3700 column_len = col_len = strlen(col_item->col_data);
3701 if (column_len < 12)
3703 line_bufp = get_line_buf(buf_offset + column_len);
3704 put_string_spaces(line_bufp + buf_offset, col_item->col_data, col_len, column_len);
3708 column_len = strlen(col_item->col_data);
3709 line_bufp = get_line_buf(buf_offset + column_len);
3710 put_string(line_bufp + buf_offset, col_item->col_data, column_len);
3713 buf_offset += column_len;
3714 if (i != cf->cinfo.num_cols - 1) {
3716 * This isn't the last column, so we need to print a
3717 * separator between this column and the next.
3719 * If we printed a network source and are printing a
3720 * network destination of the same type next, separate
3721 * them with a UTF-8 right arrow; if we printed a network
3722 * destination and are printing a network source of the same
3723 * type next, separate them with a UTF-8 left arrow;
3724 * otherwise separate them with a space.
3726 * We add enough space to the buffer for " \xe2\x86\x90 "
3727 * or " \xe2\x86\x92 ", even if we're only adding " ".
3729 line_bufp = get_line_buf(buf_offset + 5);
3730 switch (col_item->col_fmt) {
3735 switch (cf->cinfo.columns[i+1].col_fmt) {
3740 g_snprintf(str_format, sizeof(str_format), "%s%s%s", delimiter_char, UTF8_RIGHTWARDS_ARROW, delimiter_char);
3741 put_string(line_bufp + buf_offset, str_format, 5);
3746 put_string(line_bufp + buf_offset, delimiter_char, 1);
3752 case COL_DEF_DL_SRC:
3753 case COL_RES_DL_SRC:
3754 case COL_UNRES_DL_SRC:
3755 switch (cf->cinfo.columns[i+1].col_fmt) {
3757 case COL_DEF_DL_DST:
3758 case COL_RES_DL_DST:
3759 case COL_UNRES_DL_DST:
3760 g_snprintf(str_format, sizeof(str_format), "%s%s%s", delimiter_char, UTF8_RIGHTWARDS_ARROW, delimiter_char);
3761 put_string(line_bufp + buf_offset, str_format, 5);
3766 put_string(line_bufp + buf_offset, delimiter_char, 1);
3772 case COL_DEF_NET_SRC:
3773 case COL_RES_NET_SRC:
3774 case COL_UNRES_NET_SRC:
3775 switch (cf->cinfo.columns[i+1].col_fmt) {
3777 case COL_DEF_NET_DST:
3778 case COL_RES_NET_DST:
3779 case COL_UNRES_NET_DST:
3780 g_snprintf(str_format, sizeof(str_format), "%s%s%s", delimiter_char, UTF8_RIGHTWARDS_ARROW, delimiter_char);
3781 put_string(line_bufp + buf_offset, str_format, 5);
3786 put_string(line_bufp + buf_offset, delimiter_char, 1);
3795 switch (cf->cinfo.columns[i+1].col_fmt) {
3800 g_snprintf(str_format, sizeof(str_format), "%s%s%s", delimiter_char, UTF8_LEFTWARDS_ARROW, delimiter_char);
3801 put_string(line_bufp + buf_offset, str_format, 5);
3806 put_string(line_bufp + buf_offset, delimiter_char, 1);
3812 case COL_DEF_DL_DST:
3813 case COL_RES_DL_DST:
3814 case COL_UNRES_DL_DST:
3815 switch (cf->cinfo.columns[i+1].col_fmt) {
3817 case COL_DEF_DL_SRC:
3818 case COL_RES_DL_SRC:
3819 case COL_UNRES_DL_SRC:
3820 g_snprintf(str_format, sizeof(str_format), "%s%s%s", delimiter_char, UTF8_LEFTWARDS_ARROW, delimiter_char);
3821 put_string(line_bufp + buf_offset, str_format, 5);
3826 put_string(line_bufp + buf_offset, delimiter_char, 1);
3832 case COL_DEF_NET_DST:
3833 case COL_RES_NET_DST:
3834 case COL_UNRES_NET_DST:
3835 switch (cf->cinfo.columns[i+1].col_fmt) {
3837 case COL_DEF_NET_SRC:
3838 case COL_RES_NET_SRC:
3839 case COL_UNRES_NET_SRC:
3840 g_snprintf(str_format, sizeof(str_format), "%s%s%s", delimiter_char, UTF8_LEFTWARDS_ARROW, delimiter_char);
3841 put_string(line_bufp + buf_offset, str_format, 5);
3846 put_string(line_bufp + buf_offset, delimiter_char, 1);
3853 put_string(line_bufp + buf_offset, delimiter_char, 1);
3860 if (dissect_color && color_filter != NULL)
3861 return print_line_color(print_stream, 0, line_bufp, &color_filter->fg_color, &color_filter->bg_color);
3863 return print_line(print_stream, 0, line_bufp);
3867 print_packet(capture_file *cf, epan_dissect_t *edt)
3869 if (print_summary || output_fields_has_cols(output_fields))
3870 /* Just fill in the columns. */
3871 epan_dissect_fill_in_columns(edt, FALSE, TRUE);
3873 /* Print summary columns and/or protocol tree */
3874 switch (output_action) {
3877 if (print_summary && !print_columns(cf, edt))
3879 if (print_details) {
3880 if (!proto_tree_print(print_details ? print_dissections_expanded : print_dissections_none,
3881 print_hex, edt, output_only_tables, print_stream))
3884 if (!print_line(print_stream, 0, separator))
3891 if (print_summary) {
3892 write_psml_columns(edt, stdout, dissect_color);
3893 return !ferror(stdout);
3895 if (print_details) {
3896 write_pdml_proto_tree(output_fields, protocolfilter, protocolfilter_flags, edt, &cf->cinfo, stdout, dissect_color);
3898 return !ferror(stdout);
3903 if (print_summary) {
3904 /*No non-verbose "fields" format */
3905 g_assert_not_reached();
3907 if (print_details) {
3908 write_fields_proto_tree(output_fields, edt, &cf->cinfo, stdout);
3910 return !ferror(stdout);
3916 g_assert_not_reached();
3917 if (print_details) {
3918 write_json_proto_tree(output_fields, print_dissections_expanded,
3919 print_hex, protocolfilter, protocolfilter_flags,
3920 edt, &cf->cinfo, node_children_grouper, stdout);
3921 return !ferror(stdout);
3925 case WRITE_JSON_RAW:
3927 g_assert_not_reached();
3928 if (print_details) {
3929 write_json_proto_tree(output_fields, print_dissections_none, TRUE,
3930 protocolfilter, protocolfilter_flags,
3931 edt, &cf->cinfo, node_children_grouper, stdout);
3932 return !ferror(stdout);
3937 write_ek_proto_tree(output_fields, print_summary, print_hex, protocolfilter,
3938 protocolfilter_flags, edt, &cf->cinfo, stdout);
3939 return !ferror(stdout);
3943 if (print_summary || print_details) {
3944 if (!print_line(print_stream, 0, ""))
3947 if (!print_hex_data(print_stream, edt))
3949 if (!print_line(print_stream, 0, separator))
3958 switch (output_action) {
3961 return print_finale(print_stream);
3965 write_pdml_finale(stdout);
3967 write_psml_finale(stdout);
3968 return !ferror(stdout);
3971 write_fields_finale(output_fields, stdout);
3972 return !ferror(stdout);
3975 case WRITE_JSON_RAW:
3976 write_json_finale(stdout);
3977 return !ferror(stdout);
3980 return !ferror(stdout);
3983 g_assert_not_reached();
3989 cf_close(capture_file *cf)
3991 g_free(cf->filename);
3995 cf_open(capture_file *cf, const char *fname, unsigned int type, gboolean is_tempfile, int *err)
4000 wth = wtap_open_offline(fname, type, err, &err_info, perform_two_pass_analysis);
4004 /* The open succeeded. Fill in the information for this file. */
4006 /* Create new epan session for dissection. */
4007 epan_free(cf->epan);
4008 cf->epan = tshark_epan_new(cf);
4010 cf->provider.wth = wth;
4011 cf->f_datalen = 0; /* not used, but set it anyway */
4013 /* Set the file name because we need it to set the follow stream filter.
4014 XXX - is that still true? We need it for other reasons, though,
4016 cf->filename = g_strdup(fname);
4018 /* Indicate whether it's a permanent or temporary file. */
4019 cf->is_tempfile = is_tempfile;
4021 /* No user changes yet. */
4022 cf->unsaved_changes = FALSE;
4024 cf->cd_t = wtap_file_type_subtype(cf->provider.wth);
4025 cf->open_type = type;
4027 cf->drops_known = FALSE;
4029 cf->snap = wtap_snapshot_length(cf->provider.wth);
4030 nstime_set_zero(&cf->elapsed_time);
4031 cf->provider.ref = NULL;
4032 cf->provider.prev_dis = NULL;
4033 cf->provider.prev_cap = NULL;
4035 cf->state = FILE_READ_IN_PROGRESS;
4037 wtap_set_cb_new_ipv4(cf->provider.wth, add_ipv4_name);
4038 wtap_set_cb_new_ipv6(cf->provider.wth, (wtap_new_ipv6_callback_t) add_ipv6_name);
4043 cfile_open_failure_message("TShark", fname, *err, err_info);
4048 show_print_file_io_error(int err)
4053 cmdarg_err("Not all the packets could be printed because there is "
4054 "no space left on the file system.");
4059 cmdarg_err("Not all the packets could be printed because you are "
4060 "too close to, or over your disk quota.");
4065 cmdarg_err("An error occurred while printing packets: %s.",
4072 * General errors and warnings are reported with an console message
4076 failure_warning_message(const char *msg_format, va_list ap)
4078 fprintf(stderr, "tshark: ");
4079 vfprintf(stderr, msg_format, ap);
4080 fprintf(stderr, "\n");
4084 * Open/create errors are reported with an console message in TShark.
4087 open_failure_message(const char *filename, int err, gboolean for_writing)
4089 fprintf(stderr, "tshark: ");
4090 fprintf(stderr, file_open_error_message(err, for_writing), filename);
4091 fprintf(stderr, "\n");
4095 * Read errors are reported with an console message in TShark.
4098 read_failure_message(const char *filename, int err)
4100 cmdarg_err("An error occurred while reading from the file \"%s\": %s.",
4101 filename, g_strerror(err));
4105 * Write errors are reported with an console message in TShark.
4108 write_failure_message(const char *filename, int err)
4110 cmdarg_err("An error occurred while writing to the file \"%s\": %s.",
4111 filename, g_strerror(err));
4114 static void reset_epan_mem(capture_file *cf,epan_dissect_t *edt, gboolean tree, gboolean visual)
4116 if (!epan_auto_reset || (cf->count < epan_auto_reset_count))
4119 fprintf(stderr, "resetting session.\n");
4121 epan_dissect_cleanup(edt);
4122 epan_free(cf->epan);
4124 cf->epan = tshark_epan_new(cf);
4125 epan_dissect_init(edt, cf->epan, tree, visual);
4130 * Report additional information for an error in command-line arguments.
4133 failure_message_cont(const char *msg_format, va_list ap)
4135 vfprintf(stderr, msg_format, ap);
4136 fprintf(stderr, "\n");
4140 * Editor modelines - https://www.wireshark.org/tools/modelines.html
4145 * indent-tabs-mode: nil
4148 * vi: set shiftwidth=2 tabstop=8 expandtab:
4149 * :indentSize=2:tabSize=8:noTabs=true: