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 #include "epan/maxmind_db.h"
89 #include "epan/register.h"
90 #include <epan/epan_dissect.h>
92 #include <epan/stat_tap_ui.h>
93 #include <epan/conversation_table.h>
94 #include <epan/srt_table.h>
95 #include <epan/rtd_table.h>
96 #include <epan/ex-opt.h>
97 #include <epan/exported_pdu.h>
99 #include "capture_opts.h"
101 #include "caputils/capture-pcap-util.h"
104 #include "caputils/capture_ifinfo.h"
106 #include "caputils/capture-wpcap.h"
107 #include <wsutil/os_version_info.h>
108 #include <wsutil/unicode-utils.h>
110 #include <capchild/capture_session.h>
111 #include <capchild/capture_sync.h>
112 #include <capture_info.h>
113 #endif /* HAVE_LIBPCAP */
115 #include <epan/funnel.h>
117 #include <wsutil/str_util.h>
118 #include <wsutil/utf8_entities.h>
123 #include <wsutil/plugins.h>
127 #define INVALID_OPTION 1
128 #define INVALID_INTERFACE 2
129 #define INVALID_FILE 2
130 #define INVALID_FILTER 2
131 #define INVALID_EXPORT 2
132 #define INVALID_CAPABILITY 2
133 #define INVALID_TAP 2
134 #define INVALID_DATA_LINK 2
135 #define INVALID_TIMESTAMP_TYPE 2
136 #define INVALID_CAPTURE 2
137 #define INIT_FAILED 2
140 * values 128..65535 are capture+dissect options, 65536 is used by
141 * ui/commandline.c, so start tshark-specific options 1000 after this
143 #define LONGOPT_COLOR (65536+1000)
144 #define LONGOPT_NO_DUPLICATE_KEYS (65536+1001)
147 #define tshark_debug(...) g_warning(__VA_ARGS__)
149 #define tshark_debug(...)
154 static guint32 cum_bytes;
155 static frame_data ref_frame;
156 static frame_data prev_dis_frame;
157 static frame_data prev_cap_frame;
159 static gboolean perform_two_pass_analysis;
160 static guint32 epan_auto_reset_count = 0;
161 static gboolean epan_auto_reset = FALSE;
164 * The way the packet decode is to be written.
167 WRITE_TEXT, /* summary or detail text */
168 WRITE_XML, /* PDML or PSML */
169 WRITE_FIELDS, /* User defined list of fields */
170 WRITE_JSON, /* JSON */
171 WRITE_JSON_RAW, /* JSON only raw hex */
172 WRITE_EK /* JSON bulk insert to Elasticsearch */
173 /* Add CSV and the like here */
176 static output_action_e output_action;
177 static gboolean do_dissection; /* TRUE if we have to dissect each packet */
178 static gboolean print_packet_info; /* TRUE if we're to print packet information */
179 static gboolean print_summary; /* TRUE if we're to print packet summary information */
180 static gboolean print_details; /* TRUE if we're to print packet details information */
181 static gboolean print_hex; /* TRUE if we're to print hex/ascci information */
182 static gboolean line_buffered;
183 static gboolean really_quiet = FALSE;
184 static gchar* delimiter_char = " ";
185 static gboolean dissect_color = FALSE;
187 static print_format_e print_format = PR_FMT_TEXT;
188 static print_stream_t *print_stream = NULL;
190 static output_fields_t* output_fields = NULL;
191 static gchar **protocolfilter = NULL;
192 static pf_flags protocolfilter_flags = PF_NONE;
194 static gboolean no_duplicate_keys = FALSE;
195 static proto_node_children_grouper_func node_children_grouper = proto_node_group_children_by_unique;
197 /* The line separator used between packets, changeable via the -S option */
198 static const char *separator = "";
200 static gboolean prefs_loaded = FALSE;
204 * TRUE if we're to print packet counts to keep track of captured packets.
206 static gboolean print_packet_counts;
208 static capture_options global_capture_opts;
209 static capture_session global_capture_session;
210 static info_data_t global_info_data;
213 static gboolean infodelay; /* if TRUE, don't print capture info in SIGINFO handler */
214 static gboolean infoprint; /* if TRUE, print capture info after clearing infodelay */
217 static gboolean capture(void);
218 static void report_counts(void);
220 static BOOL WINAPI capture_cleanup(DWORD);
222 static void capture_cleanup(int);
224 static void report_counts_siginfo(int);
228 #else /* HAVE_LIBPCAP */
230 static char *output_file_name;
232 #endif /* HAVE_LIBPCAP */
234 static void reset_epan_mem(capture_file *cf, epan_dissect_t *edt, gboolean tree, gboolean visual);
235 static gboolean process_cap_file(capture_file *, char *, int, gboolean, int, gint64);
236 static gboolean process_packet_single_pass(capture_file *cf,
237 epan_dissect_t *edt, gint64 offset, wtap_rec *rec,
238 const guchar *pd, guint tap_flags);
239 static void show_print_file_io_error(int err);
240 static gboolean write_preamble(capture_file *cf);
241 static gboolean print_packet(capture_file *cf, epan_dissect_t *edt);
242 static gboolean write_finale(void);
244 static void failure_warning_message(const char *msg_format, va_list ap);
245 static void open_failure_message(const char *filename, int err,
246 gboolean for_writing);
247 static void read_failure_message(const char *filename, int err);
248 static void write_failure_message(const char *filename, int err);
249 static void failure_message_cont(const char *msg_format, va_list ap);
251 static GHashTable *output_only_tables = NULL;
254 const char *sstr; /* The short string */
255 const char *lstr; /* The long string */
259 string_compare(gconstpointer a, gconstpointer b)
261 return strcmp(((const struct string_elem *)a)->sstr,
262 ((const struct string_elem *)b)->sstr);
266 string_elem_print(gpointer data, gpointer not_used _U_)
268 fprintf(stderr, " %s - %s\n",
269 ((struct string_elem *)data)->sstr,
270 ((struct string_elem *)data)->lstr);
274 list_capture_types(void) {
276 struct string_elem *captypes;
279 captypes = g_new(struct string_elem, WTAP_NUM_FILE_TYPES_SUBTYPES);
281 fprintf(stderr, "tshark: The available capture file types for the \"-F\" flag are:\n");
282 for (i = 0; i < WTAP_NUM_FILE_TYPES_SUBTYPES; i++) {
283 if (wtap_dump_can_open(i)) {
284 captypes[i].sstr = wtap_file_type_subtype_short_string(i);
285 captypes[i].lstr = wtap_file_type_subtype_string(i);
286 list = g_slist_insert_sorted(list, &captypes[i], string_compare);
289 g_slist_foreach(list, string_elem_print, NULL);
295 list_read_capture_types(void) {
297 struct string_elem *captypes;
299 const char *magic = "Magic-value-based";
300 const char *heuristic = "Heuristics-based";
302 /* this is a hack, but WTAP_NUM_FILE_TYPES_SUBTYPES is always >= number of open routines so we're safe */
303 captypes = g_new(struct string_elem, WTAP_NUM_FILE_TYPES_SUBTYPES);
305 fprintf(stderr, "tshark: The available read file types for the \"-X read_format:\" option are:\n");
306 for (i = 0; open_routines[i].name != NULL; i++) {
307 captypes[i].sstr = open_routines[i].name;
308 captypes[i].lstr = (open_routines[i].type == OPEN_INFO_MAGIC) ? magic : heuristic;
309 list = g_slist_insert_sorted(list, &captypes[i], string_compare);
311 g_slist_foreach(list, string_elem_print, NULL);
317 print_usage(FILE *output)
319 fprintf(output, "\n");
320 fprintf(output, "Usage: tshark [options] ...\n");
321 fprintf(output, "\n");
324 fprintf(output, "Capture interface:\n");
325 fprintf(output, " -i <interface> name or idx of interface (def: first non-loopback)\n");
326 fprintf(output, " -f <capture filter> packet filter in libpcap filter syntax\n");
327 #ifdef HAVE_PCAP_CREATE
328 fprintf(output, " -s <snaplen> packet snapshot length (def: appropriate maximum)\n");
330 fprintf(output, " -s <snaplen> packet snapshot length (def: %u)\n", WTAP_MAX_PACKET_SIZE_STANDARD);
332 fprintf(output, " -p don't capture in promiscuous mode\n");
333 #ifdef HAVE_PCAP_CREATE
334 fprintf(output, " -I capture in monitor mode, if available\n");
336 #ifdef CAN_SET_CAPTURE_BUFFER_SIZE
337 fprintf(output, " -B <buffer size> size of kernel buffer (def: %dMB)\n", DEFAULT_CAPTURE_BUFFER_SIZE);
339 fprintf(output, " -y <link type> link layer type (def: first appropriate)\n");
340 fprintf(output, " --time-stamp-type <type> timestamp method for interface\n");
341 fprintf(output, " -D print list of interfaces and exit\n");
342 fprintf(output, " -L print list of link-layer types of iface and exit\n");
343 fprintf(output, " --list-time-stamp-types print list of timestamp types for iface and exit\n");
344 fprintf(output, "\n");
345 fprintf(output, "Capture stop conditions:\n");
346 fprintf(output, " -c <packet count> stop after n packets (def: infinite)\n");
347 fprintf(output, " -a <autostop cond.> ... duration:NUM - stop after NUM seconds\n");
348 fprintf(output, " filesize:NUM - stop this file after NUM KB\n");
349 fprintf(output, " files:NUM - stop after NUM files\n");
350 /*fprintf(output, "\n");*/
351 fprintf(output, "Capture output:\n");
352 fprintf(output, " -b <ringbuffer opt.> ... duration:NUM - switch to next file after NUM secs\n");
353 fprintf(output, " interval:NUM - create time intervals of NUM secs\n");
354 fprintf(output, " filesize:NUM - switch to next file after NUM KB\n");
355 fprintf(output, " files:NUM - ringbuffer: replace after NUM files\n");
356 #endif /* HAVE_LIBPCAP */
357 #ifdef HAVE_PCAP_REMOTE
358 fprintf(output, "RPCAP options:\n");
359 fprintf(output, " -A <user>:<password> use RPCAP password authentication\n");
361 /*fprintf(output, "\n");*/
362 fprintf(output, "Input file:\n");
363 fprintf(output, " -r <infile> set the filename to read from (- to read from stdin)\n");
365 fprintf(output, "\n");
366 fprintf(output, "Processing:\n");
367 fprintf(output, " -2 perform a two-pass analysis\n");
368 fprintf(output, " -M <packet count> perform session auto reset\n");
369 fprintf(output, " -R <read filter> packet Read filter in Wireshark display filter syntax\n");
370 fprintf(output, " (requires -2)\n");
371 fprintf(output, " -Y <display filter> packet displaY filter in Wireshark display filter\n");
372 fprintf(output, " syntax\n");
373 fprintf(output, " -n disable all name resolutions (def: all enabled)\n");
374 fprintf(output, " -N <name resolve flags> enable specific name resolution(s): \"mnNtCd\"\n");
375 fprintf(output, " -d %s ...\n", DECODE_AS_ARG_TEMPLATE);
376 fprintf(output, " \"Decode As\", see the man page for details\n");
377 fprintf(output, " Example: tcp.port==8888,http\n");
378 fprintf(output, " -H <hosts file> read a list of entries from a hosts file, which will\n");
379 fprintf(output, " then be written to a capture file. (Implies -W n)\n");
380 fprintf(output, " --enable-protocol <proto_name>\n");
381 fprintf(output, " enable dissection of proto_name\n");
382 fprintf(output, " --disable-protocol <proto_name>\n");
383 fprintf(output, " disable dissection of proto_name\n");
384 fprintf(output, " --enable-heuristic <short_name>\n");
385 fprintf(output, " enable dissection of heuristic protocol\n");
386 fprintf(output, " --disable-heuristic <short_name>\n");
387 fprintf(output, " disable dissection of heuristic protocol\n");
389 /*fprintf(output, "\n");*/
390 fprintf(output, "Output:\n");
391 fprintf(output, " -w <outfile|-> write packets to a pcap-format file named \"outfile\"\n");
392 fprintf(output, " (or to the standard output for \"-\")\n");
393 fprintf(output, " -C <config profile> start with specified configuration profile\n");
394 fprintf(output, " -F <output file type> set the output file type, default is pcapng\n");
395 fprintf(output, " an empty \"-F\" option will list the file types\n");
396 fprintf(output, " -V add output of packet tree (Packet Details)\n");
397 fprintf(output, " -O <protocols> Only show packet details of these protocols, comma\n");
398 fprintf(output, " separated\n");
399 fprintf(output, " -P print packet summary even when writing to a file\n");
400 fprintf(output, " -S <separator> the line separator to print between packets\n");
401 fprintf(output, " -x add output of hex and ASCII dump (Packet Bytes)\n");
402 fprintf(output, " -T pdml|ps|psml|json|jsonraw|ek|tabs|text|fields|?\n");
403 fprintf(output, " format of text output (def: text)\n");
404 fprintf(output, " -j <protocolfilter> protocols layers filter if -T ek|pdml|json selected\n");
405 fprintf(output, " (e.g. \"ip ip.flags text\", filter does not expand child\n");
406 fprintf(output, " nodes, unless child is specified also in the filter)\n");
407 fprintf(output, " -J <protocolfilter> top level protocol filter if -T ek|pdml|json selected\n");
408 fprintf(output, " (e.g. \"http tcp\", filter which expands all child nodes)\n");
409 fprintf(output, " -e <field> field to print if -Tfields selected (e.g. tcp.port,\n");
410 fprintf(output, " _ws.col.Info)\n");
411 fprintf(output, " this option can be repeated to print multiple fields\n");
412 fprintf(output, " -E<fieldsoption>=<value> set options for output when -Tfields selected:\n");
413 fprintf(output, " bom=y|n print a UTF-8 BOM\n");
414 fprintf(output, " header=y|n switch headers on and off\n");
415 fprintf(output, " separator=/t|/s|<char> select tab, space, printable character as separator\n");
416 fprintf(output, " occurrence=f|l|a print first, last or all occurrences of each field\n");
417 fprintf(output, " aggregator=,|/s|<char> select comma, space, printable character as\n");
418 fprintf(output, " aggregator\n");
419 fprintf(output, " quote=d|s|n select double, single, no quotes for values\n");
420 fprintf(output, " -t a|ad|d|dd|e|r|u|ud|? output format of time stamps (def: r: rel. to first)\n");
421 fprintf(output, " -u s|hms output format of seconds (def: s: seconds)\n");
422 fprintf(output, " -l flush standard output after each packet\n");
423 fprintf(output, " -q be more quiet on stdout (e.g. when using statistics)\n");
424 fprintf(output, " -Q only log true errors to stderr (quieter than -q)\n");
425 fprintf(output, " -g enable group read access on the output file(s)\n");
426 fprintf(output, " -W n Save extra information in the file, if supported.\n");
427 fprintf(output, " n = write network address resolution information\n");
428 fprintf(output, " -X <key>:<value> eXtension options, see the man page for details\n");
429 fprintf(output, " -U tap_name PDUs export mode, see the man page for details\n");
430 fprintf(output, " -z <statistics> various statistics, see the man page for details\n");
431 fprintf(output, " --capture-comment <comment>\n");
432 fprintf(output, " add a capture comment to the newly created\n");
433 fprintf(output, " output file (only for pcapng)\n");
434 fprintf(output, " --export-objects <protocol>,<destdir> save exported objects for a protocol to\n");
435 fprintf(output, " a directory named \"destdir\"\n");
436 fprintf(output, " --color color output text similarly to the Wireshark GUI,\n");
437 fprintf(output, " requires a terminal with 24-bit color support\n");
438 fprintf(output, " Also supplies color attributes to pdml and psml formats\n");
439 fprintf(output, " (Note that attributes are nonstandard)\n");
440 fprintf(output, " --no-duplicate-keys If -T json is specified, merge duplicate keys in an object\n");
441 fprintf(output, " into a single key with as value a json array containing all\n");
442 fprintf(output, " values");
444 fprintf(output, "\n");
445 fprintf(output, "Miscellaneous:\n");
446 fprintf(output, " -h display this help and exit\n");
447 fprintf(output, " -v display version info and exit\n");
448 fprintf(output, " -o <name>:<value> ... override preference setting\n");
449 fprintf(output, " -K <keytab> keytab file to use for kerberos decryption\n");
450 fprintf(output, " -G [report] dump one of several available reports and exit\n");
451 fprintf(output, " default report=\"fields\"\n");
452 fprintf(output, " use \"-G help\" for more help\n");
454 fprintf(output, "\n");
455 fprintf(output, "Dumpcap can benefit from an enabled BPF JIT compiler if available.\n");
456 fprintf(output, "You might want to enable it by executing:\n");
457 fprintf(output, " \"echo 1 > /proc/sys/net/core/bpf_jit_enable\"\n");
458 fprintf(output, "Note that this can make your system less secure!\n");
464 glossary_option_help(void)
470 fprintf(output, "TShark (Wireshark) %s\n", get_ws_vcs_version_info());
472 fprintf(output, "\n");
473 fprintf(output, "Usage: tshark -G [report]\n");
474 fprintf(output, "\n");
475 fprintf(output, "Glossary table reports:\n");
476 fprintf(output, " -G column-formats dump column format codes and exit\n");
477 fprintf(output, " -G decodes dump \"layer type\"/\"decode as\" associations and exit\n");
478 fprintf(output, " -G dissector-tables dump dissector table names, types, and properties\n");
479 fprintf(output, " -G fieldcount dump count of header fields and exit\n");
480 fprintf(output, " -G fields dump fields glossary and exit\n");
481 fprintf(output, " -G ftypes dump field type basic and descriptive names\n");
482 fprintf(output, " -G heuristic-decodes dump heuristic dissector tables\n");
483 fprintf(output, " -G plugins dump installed plugins and exit\n");
484 fprintf(output, " -G protocols dump protocols in registration database and exit\n");
485 fprintf(output, " -G values dump value, range, true/false strings and exit\n");
486 fprintf(output, "\n");
487 fprintf(output, "Preference reports:\n");
488 fprintf(output, " -G currentprefs dump current preferences and exit\n");
489 fprintf(output, " -G defaultprefs dump default preferences and exit\n");
490 fprintf(output, " -G folders dump about:folders\n");
491 fprintf(output, "\n");
495 tshark_log_handler (const gchar *log_domain, GLogLevelFlags log_level,
496 const gchar *message, gpointer user_data)
498 /* ignore log message, if log_level isn't interesting based
499 upon the console log preferences.
500 If the preferences haven't been loaded yet, display the
503 The default console_log_level preference value is such that only
504 ERROR, CRITICAL and WARNING level messages are processed;
505 MESSAGE, INFO and DEBUG level messages are ignored.
507 XXX: Aug 07, 2009: Prior tshark g_log code was hardwired to process only
508 ERROR and CRITICAL level messages so the current code is a behavioral
509 change. The current behavior is the same as in Wireshark.
511 if (prefs_loaded && (log_level & G_LOG_LEVEL_MASK & prefs.console_log_level) == 0) {
515 g_log_default_handler(log_domain, log_level, message, user_data);
520 print_current_user(void) {
521 gchar *cur_user, *cur_group;
523 if (started_with_special_privs()) {
524 cur_user = get_cur_username();
525 cur_group = get_cur_groupname();
526 fprintf(stderr, "Running as user \"%s\" and group \"%s\".",
527 cur_user, cur_group);
530 if (running_with_special_privs()) {
531 fprintf(stderr, " This could be dangerous.");
533 fprintf(stderr, "\n");
538 get_tshark_compiled_version_info(GString *str)
540 /* Capture libraries */
541 get_compiled_caplibs_version(str);
545 get_tshark_runtime_version_info(GString *str)
548 /* Capture libraries */
549 g_string_append(str, ", ");
550 get_runtime_caplibs_version(str);
553 /* stuff used by libwireshark */
554 epan_get_runtime_version_info(str);
560 const char *constpath;
568 * Fetching the "File" dialogs folder not implemented.
569 * This is arguably just a pwd for a ui/cli .
573 printf("%-21s\t%s\n", "Temp:", g_get_tmp_dir());
576 path = get_persconffile_path("", FALSE);
577 printf("%-21s\t%s\n", "Personal configuration:", path);
581 constpath = get_datafile_dir();
582 if (constpath != NULL) {
583 printf("%-21s\t%s\n", "Global configuration:", constpath);
587 constpath = get_systemfile_dir();
588 printf("%-21s\t%s\n", "System:", constpath);
591 constpath = get_progfile_dir();
592 printf("%-21s\t%s\n", "Program:", constpath);
596 printf("%-21s\t%s\n", "Personal Plugins:", get_plugins_pers_dir_with_version());
599 printf("%-21s\t%s\n", "Global Plugins:", get_plugins_dir_with_version());
603 /* pers lua plugins */
604 printf("%-21s\t%s\n", "Personal Lua Plugins:", get_plugins_pers_dir());
606 /* global lua plugins */
607 printf("%-21s\t%s\n", "Global Lua Plugins:", get_plugins_dir());
611 constpath = get_extcap_dir();
613 resultArray = g_strsplit(constpath, G_SEARCHPATH_SEPARATOR_S, 10);
614 for(i = 0; resultArray[i]; i++)
615 printf("%-21s\t%s\n", "Extcap path:", g_strstrip(resultArray[i]));
617 g_strfreev(resultArray);
620 path = maxmind_db_get_paths();
622 resultArray = g_strsplit(path, G_SEARCHPATH_SEPARATOR_S, 10);
624 for(i = 0; resultArray[i]; i++)
625 printf("%-21s\t%s\n", "MaxMind database path:", g_strstrip(resultArray[i]));
627 g_strfreev(resultArray);
632 path = oid_get_default_mib_path();
634 resultArray = g_strsplit(path, G_SEARCHPATH_SEPARATOR_S, 20);
636 for(i = 0; resultArray[i]; i++)
637 printf("%-21s\t%s\n", "MIB/PIB path:", g_strstrip(resultArray[i]));
639 g_strfreev(resultArray);
646 must_do_dissection(dfilter_t *rfcode, dfilter_t *dfcode,
647 gchar *volatile pdu_export_arg)
649 /* We have to dissect each packet if:
651 we're printing information about each packet;
653 we're using a read filter on the packets;
655 we're using a display filter on the packets;
657 we're exporting PDUs;
659 we're using any taps that need dissection. */
660 return print_packet_info || rfcode || dfcode || pdu_export_arg ||
661 tap_listeners_require_dissection() || dissect_color;
665 main(int argc, char *argv[])
667 GString *comp_info_str;
668 GString *runtime_info_str;
669 char *init_progfile_dir_error;
671 static const struct option long_options[] = {
672 {"help", no_argument, NULL, 'h'},
673 {"version", no_argument, NULL, 'v'},
674 LONGOPT_CAPTURE_COMMON
675 LONGOPT_DISSECT_COMMON
676 {"print", no_argument, NULL, 'P'},
677 {"export-objects", required_argument, NULL, LONGOPT_EXPORT_OBJECTS},
678 {"color", no_argument, NULL, LONGOPT_COLOR},
679 {"no-duplicate-keys", no_argument, NULL, LONGOPT_NO_DUPLICATE_KEYS},
682 gboolean arg_error = FALSE;
690 volatile gboolean success;
691 volatile int exit_status = EXIT_SUCCESS;
693 int caps_queries = 0;
694 gboolean start_capture = FALSE;
698 gboolean capture_option_specified = FALSE;
700 gboolean quiet = FALSE;
701 #ifdef PCAP_NG_DEFAULT
702 volatile int out_file_type = WTAP_FILE_TYPE_SUBTYPE_PCAPNG;
704 volatile int out_file_type = WTAP_FILE_TYPE_SUBTYPE_PCAP;
706 volatile gboolean out_file_name_res = FALSE;
707 volatile int in_file_type = WTAP_TYPE_AUTO;
708 gchar *volatile cf_name = NULL;
709 gchar *rfilter = NULL;
710 gchar *dfilter = NULL;
711 #ifdef HAVE_PCAP_OPEN_DEAD
712 struct bpf_program fcode;
714 dfilter_t *rfcode = NULL;
715 dfilter_t *dfcode = NULL;
719 gchar *output_only = NULL;
720 gchar *volatile pdu_export_arg = NULL;
721 const char *volatile exp_pdu_filename = NULL;
722 exp_pdu_t exp_pdu_tap_data;
725 * The leading + ensures that getopt_long() does not permute the argv[]
728 * We have to make sure that the first getopt_long() preserves the content
729 * of argv[] for the subsequent getopt_long() call.
731 * We use getopt_long() in both cases to ensure that we're using a routine
732 * whose permutation behavior we can control in the same fashion on all
733 * platforms, and so that, if we ever need to process a long argument before
734 * doing further initialization, we can do so.
736 * Glibc and Solaris libc document that a leading + disables permutation
737 * of options, regardless of whether POSIXLY_CORRECT is set or not; *BSD
738 * and macOS don't document it, but do so anyway.
740 * We do *not* use a leading - because the behavior of a leading - is
741 * platform-dependent.
743 #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:"
745 static const char optstring[] = OPTSTRING;
747 tshark_debug("tshark started with %d args", argc);
749 /* Set the C-language locale to the native environment. */
750 setlocale(LC_ALL, "");
752 cmdarg_err_init(failure_warning_message, failure_message_cont);
755 arg_list_utf_16to8(argc, argv);
756 create_app_running_mutex();
757 #if !GLIB_CHECK_VERSION(2,31,0)
763 * Get credential information for later use, and drop privileges
764 * before doing anything else.
765 * Let the user know if anything happened.
767 init_process_policies();
768 relinquish_special_privs_perm();
769 print_current_user();
772 * Attempt to get the pathname of the directory containing the
775 init_progfile_dir_error = init_progfile_dir(argv[0], main);
776 if (init_progfile_dir_error != NULL) {
778 "tshark: Can't get pathname of directory containing the tshark program: %s.\n"
779 "It won't be possible to capture traffic.\n"
780 "Report this to the Wireshark developers.",
781 init_progfile_dir_error);
782 g_free(init_progfile_dir_error);
785 initialize_funnel_ops();
788 ws_init_dll_search_path();
790 /* Load wpcap if possible. Do this before collecting the run-time version information */
793 /* Warn the user if npf.sys isn't loaded. */
794 if (!npf_sys_is_running() && get_windows_major_version() >= 6) {
795 fprintf(stderr, "The NPF driver isn't running. You may have trouble "
796 "capturing or\nlisting interfaces.\n");
798 #endif /* HAVE_LIBPCAP */
801 /* Get the compile-time version information string */
802 comp_info_str = get_compiled_version_info(get_tshark_compiled_version_info,
803 epan_get_compiled_version_info);
805 /* Get the run-time version information string */
806 runtime_info_str = get_runtime_version_info(get_tshark_runtime_version_info);
808 /* Add it to the information to be reported on a crash. */
809 ws_add_crash_info("TShark (Wireshark) %s\n"
814 get_ws_vcs_version_info(), comp_info_str->str, runtime_info_str->str);
815 g_string_free(comp_info_str, TRUE);
816 g_string_free(runtime_info_str, TRUE);
818 /* Fail sometimes. Useful for testing fuzz scripts. */
819 /* if (g_random_int_range(0, 100) < 5) abort(); */
822 * In order to have the -X opts assigned before the wslua machine starts
823 * we need to call getopt_long before epan_init() gets called.
825 * In order to handle, for example, -o options, we also need to call it
826 * *after* epan_init() gets called, so that the dissectors have had a
827 * chance to register their preferences.
829 * XXX - can we do this all with one getopt_long() call, saving the
830 * arguments we can't handle until after initializing libwireshark,
831 * and then process them after initializing libwireshark?
835 while ((opt = getopt_long(argc, argv, optstring, long_options, NULL)) != -1) {
837 case 'C': /* Configuration Profile */
838 if (profile_exists (optarg, FALSE)) {
839 set_profile_name (optarg);
841 cmdarg_err("Configuration Profile \"%s\" does not exist", optarg);
842 exit_status = INVALID_OPTION;
846 case 'P': /* Print packet summary info even when writing to a file */
847 print_packet_info = TRUE;
848 print_summary = TRUE;
850 case 'O': /* Only output these protocols */
851 output_only = g_strdup(optarg);
853 case 'V': /* Verbose */
854 print_details = TRUE;
855 print_packet_info = TRUE;
857 case 'x': /* Print packet data in hex (and ASCII) */
859 /* The user asked for hex output, so let's ensure they get it,
860 * even if they're writing to a file.
862 print_packet_info = TRUE;
872 /** Send All g_log messages to our own handler **/
876 G_LOG_LEVEL_CRITICAL|
881 G_LOG_FLAG_FATAL|G_LOG_FLAG_RECURSION;
883 g_log_set_handler(NULL,
884 (GLogLevelFlags)log_flags,
885 tshark_log_handler, NULL /* user_data */);
886 g_log_set_handler(LOG_DOMAIN_MAIN,
887 (GLogLevelFlags)log_flags,
888 tshark_log_handler, NULL /* user_data */);
891 g_log_set_handler(LOG_DOMAIN_CAPTURE,
892 (GLogLevelFlags)log_flags,
893 tshark_log_handler, NULL /* user_data */);
894 g_log_set_handler(LOG_DOMAIN_CAPTURE_CHILD,
895 (GLogLevelFlags)log_flags,
896 tshark_log_handler, NULL /* user_data */);
899 init_report_message(failure_warning_message, failure_warning_message,
900 open_failure_message, read_failure_message,
901 write_failure_message);
904 capture_opts_init(&global_capture_opts);
905 capture_session_init(&global_capture_session, &cfile);
908 timestamp_set_type(TS_RELATIVE);
909 timestamp_set_precision(TS_PREC_AUTO);
910 timestamp_set_seconds_type(TS_SECONDS_DEFAULT);
914 /* Register all dissectors; we must do this before checking for the
915 "-G" flag, as the "-G" flag dumps information registered by the
916 dissectors, and we must do it before we read the preferences, in
917 case any dissectors register preferences. */
918 if (!epan_init(register_all_protocols, register_all_protocol_handoffs, NULL,
920 exit_status = INIT_FAILED;
924 /* Register all tap listeners; we do this before we parse the arguments,
925 as the "-z" argument can specify a registered tap. */
927 /* we register the plugin taps before the other taps because
928 stats_tree taps plugins will be registered as tap listeners
929 by stats_tree_stat.c and need to registered before that */
931 register_all_plugin_tap_listeners();
933 extcap_register_preferences();
934 /* Register all tap listeners. */
935 for (tap_reg_t *t = tap_reg_listener; t->cb_func != NULL; t++) {
938 conversation_table_set_gui_info(init_iousers);
939 hostlist_table_set_gui_info(init_hostlists);
940 srt_table_iterate_tables(register_srt_tables, NULL);
941 rtd_table_iterate_tables(register_rtd_tables, NULL);
942 stat_tap_iterate_tables(register_simple_stat_tables, NULL);
944 /* If invoked with the "-G" flag, we dump out information based on
945 the argument to the "-G" flag; if no argument is specified,
946 for backwards compatibility we dump out a glossary of display
949 XXX - we do this here, for now, to support "-G" with no arguments.
950 If none of our build or other processes uses "-G" with no arguments,
951 we can just process it with the other arguments. */
952 if (argc >= 2 && strcmp(argv[1], "-G") == 0) {
953 proto_initialize_all_prefixes();
956 proto_registrar_dump_fields();
958 if (strcmp(argv[2], "column-formats") == 0)
959 column_dump_column_formats();
960 else if (strcmp(argv[2], "currentprefs") == 0) {
961 epan_load_settings();
964 else if (strcmp(argv[2], "decodes") == 0)
965 dissector_dump_decodes();
966 else if (strcmp(argv[2], "defaultprefs") == 0)
968 else if (strcmp(argv[2], "dissector-tables") == 0)
969 dissector_dump_dissector_tables();
970 else if (strcmp(argv[2], "fieldcount") == 0) {
971 /* return value for the test suite */
972 exit_status = proto_registrar_dump_fieldcount();
974 } else if (strcmp(argv[2], "fields") == 0)
975 proto_registrar_dump_fields();
976 else if (strcmp(argv[2], "folders") == 0) {
977 epan_load_settings();
979 } else if (strcmp(argv[2], "ftypes") == 0)
980 proto_registrar_dump_ftypes();
981 else if (strcmp(argv[2], "heuristic-decodes") == 0)
982 dissector_dump_heur_decodes();
983 else if (strcmp(argv[2], "plugins") == 0) {
988 wslua_plugins_dump_all();
991 else if (strcmp(argv[2], "protocols") == 0)
992 proto_registrar_dump_protocols();
993 else if (strcmp(argv[2], "values") == 0)
994 proto_registrar_dump_values();
995 else if (strcmp(argv[2], "help") == 0)
996 glossary_option_help();
997 /* These are supported only for backwards compatibility and may or may not work
998 * for a given user in a given directory on a given operating system with a given
999 * command-line interpreter.
1001 else if (strcmp(argv[2], "?") == 0)
1002 glossary_option_help();
1003 else if (strcmp(argv[2], "-?") == 0)
1004 glossary_option_help();
1006 cmdarg_err("Invalid \"%s\" option for -G flag, enter -G help for more help.", argv[2]);
1007 exit_status = INVALID_OPTION;
1011 exit_status = EXIT_SUCCESS;
1015 tshark_debug("tshark reading settings");
1017 /* Load libwireshark settings from the current profile. */
1018 prefs_p = epan_load_settings();
1019 prefs_loaded = TRUE;
1021 read_filter_list(CFILTER_LIST);
1023 cap_file_init(&cfile);
1025 /* Print format defaults to this. */
1026 print_format = PR_FMT_TEXT;
1027 delimiter_char = " ";
1029 output_fields = output_fields_new();
1032 * To reset the options parser, set optreset to 1 on platforms that
1033 * have optreset (documented in *BSD and macOS, apparently present but
1034 * not documented in Solaris - the Illumos repository seems to
1035 * suggest that the first Solaris getopt_long(), at least as of 2004,
1036 * was based on the NetBSD one, it had optreset) and set optind to 1,
1037 * and set optind to 0 otherwise (documented as working in the GNU
1038 * getopt_long(). Setting optind to 0 didn't originally work in the
1039 * NetBSD one, but that was added later - we don't want to depend on
1040 * it if we have optreset).
1042 * Also reset opterr to 1, so that error messages are printed by
1045 #ifdef HAVE_OPTRESET
1053 /* Now get our args */
1054 while ((opt = getopt_long(argc, argv, optstring, long_options, NULL)) != -1) {
1056 case '2': /* Perform two pass analysis */
1057 if(epan_auto_reset){
1058 cmdarg_err("-2 does not support auto session reset.");
1061 perform_two_pass_analysis = TRUE;
1064 if(perform_two_pass_analysis){
1065 cmdarg_err("-M does not support two pass analysis.");
1068 epan_auto_reset_count = get_positive_int(optarg, "epan reset count");
1069 epan_auto_reset = TRUE;
1071 case 'a': /* autostop criteria */
1072 case 'b': /* Ringbuffer option */
1073 case 'c': /* Capture x packets */
1074 case 'f': /* capture filter */
1075 case 'g': /* enable group read access on file(s) */
1076 case 'i': /* Use interface x */
1077 case LONGOPT_SET_TSTAMP_TYPE: /* Set capture timestamp type */
1078 case 'p': /* Don't capture in promiscuous mode */
1079 #ifdef HAVE_PCAP_REMOTE
1080 case 'A': /* Authentication */
1082 #ifdef HAVE_PCAP_CREATE
1083 case 'I': /* Capture in monitor mode, if available */
1085 case 's': /* Set the snapshot (capture) length */
1086 case 'w': /* Write to capture file x */
1087 case 'y': /* Set the pcap data link type */
1088 case LONGOPT_NUM_CAP_COMMENT: /* add a capture comment */
1089 #ifdef CAN_SET_CAPTURE_BUFFER_SIZE
1090 case 'B': /* Buffer size */
1093 exit_status = capture_opts_add_opt(&global_capture_opts, opt, optarg, &start_capture);
1094 if (exit_status != 0) {
1100 * Output file name, if we're reading a file and writing to another
1103 output_file_name = optarg;
1105 capture_option_specified = TRUE;
1111 /* already processed; just ignore it now */
1113 case 'D': /* Print a list of capture devices and exit */
1115 if_list = capture_interface_list(&err, &err_str,NULL);
1116 if (if_list == NULL) {
1118 cmdarg_err("There are no interfaces on which a capture can be done");
1120 cmdarg_err("%s", err_str);
1123 exit_status = INVALID_INTERFACE;
1126 capture_opts_print_interfaces(if_list);
1127 free_interface_list(if_list);
1128 exit_status = EXIT_SUCCESS;
1131 capture_option_specified = TRUE;
1137 output_fields_add(output_fields, optarg);
1141 if (!output_fields_set_option(output_fields, optarg)) {
1142 cmdarg_err("\"%s\" is not a valid field output option=value pair.", optarg);
1143 output_fields_list_options(stderr);
1144 exit_status = INVALID_OPTION;
1149 out_file_type = wtap_short_string_to_file_type_subtype(optarg);
1150 if (out_file_type < 0) {
1151 cmdarg_err("\"%s\" isn't a valid capture file type", optarg);
1152 list_capture_types();
1153 exit_status = INVALID_OPTION;
1158 protocolfilter = wmem_strsplit(wmem_epan_scope(), optarg, " ", -1);
1161 protocolfilter_flags = PF_INCLUDE_CHILDREN;
1162 protocolfilter = wmem_strsplit(wmem_epan_scope(), optarg, " ", -1);
1164 case 'W': /* Select extra information to save in our capture file */
1165 /* This is patterned after the -N flag which may not be the best idea. */
1166 if (strchr(optarg, 'n')) {
1167 out_file_name_res = TRUE;
1169 cmdarg_err("Invalid -W argument \"%s\"; it must be one of:", optarg);
1170 cmdarg_err_cont("\t'n' write network address resolution information (pcapng only)");
1171 exit_status = INVALID_OPTION;
1175 case 'H': /* Read address to name mappings from a hosts file */
1176 if (! add_hosts_file(optarg))
1178 cmdarg_err("Can't read host entries from \"%s\"", optarg);
1179 exit_status = INVALID_OPTION;
1182 out_file_name_res = TRUE;
1185 case 'h': /* Print help and exit */
1186 printf("TShark (Wireshark) %s\n"
1187 "Dump and analyze network traffic.\n"
1188 "See https://www.wireshark.org for more information.\n",
1189 get_ws_vcs_version_info());
1190 print_usage(stdout);
1191 exit_status = EXIT_SUCCESS;
1194 case 'l': /* "Line-buffer" standard output */
1195 /* The ANSI C standard does not appear to *require* that a line-buffered
1196 stream be flushed to the host environment whenever a newline is
1197 written, it just says that, on such a stream, characters "are
1198 intended to be transmitted to or from the host environment as a
1199 block when a new-line character is encountered".
1201 The Visual C++ 6.0 C implementation doesn't do what is intended;
1202 even if you set a stream to be line-buffered, it still doesn't
1203 flush the buffer at the end of every line.
1205 The whole reason for the "-l" flag in either tcpdump or TShark
1206 is to allow the output of a live capture to be piped to a program
1207 or script and to have that script see the information for the
1208 packet as soon as it's printed, rather than having to wait until
1209 a standard I/O buffer fills up.
1211 So, if the "-l" flag is specified, we flush the standard output
1212 at the end of a packet. This will do the right thing if we're
1213 printing packet summary lines, and, as we print the entire protocol
1214 tree for a single packet without waiting for anything to happen,
1215 it should be as good as line-buffered mode if we're printing
1216 protocol trees - arguably even better, as it may do fewer
1218 line_buffered = TRUE;
1220 case 'L': /* Print list of link-layer types and exit */
1222 caps_queries |= CAPS_QUERY_LINK_TYPES;
1224 capture_option_specified = TRUE;
1228 case LONGOPT_LIST_TSTAMP_TYPES: /* List possible timestamp types */
1230 caps_queries |= CAPS_QUERY_TIMESTAMP_TYPES;
1232 capture_option_specified = TRUE;
1236 case 'o': /* Override preference from command line */
1238 char *errmsg = NULL;
1240 switch (prefs_set_pref(optarg, &errmsg)) {
1245 case PREFS_SET_SYNTAX_ERR:
1246 cmdarg_err("Invalid -o flag \"%s\"%s%s", optarg,
1247 errmsg ? ": " : "", errmsg ? errmsg : "");
1249 exit_status = INVALID_OPTION;
1253 case PREFS_SET_NO_SUCH_PREF:
1254 case PREFS_SET_OBSOLETE:
1255 cmdarg_err("-o flag \"%s\" specifies unknown preference", optarg);
1256 exit_status = INVALID_OPTION;
1262 case 'q': /* Quiet */
1265 case 'Q': /* Really quiet */
1267 really_quiet = TRUE;
1269 case 'r': /* Read capture file x */
1270 cf_name = g_strdup(optarg);
1272 case 'R': /* Read file filter */
1276 /* already processed; just ignore it now */
1278 case 'S': /* Set the line Separator to be printed between packets */
1281 case 'T': /* printing Type */
1282 print_packet_info = TRUE;
1283 if (strcmp(optarg, "text") == 0) {
1284 output_action = WRITE_TEXT;
1285 print_format = PR_FMT_TEXT;
1286 } else if (strcmp(optarg, "tabs") == 0) {
1287 output_action = WRITE_TEXT;
1288 print_format = PR_FMT_TEXT;
1289 delimiter_char = "\t";
1290 } else if (strcmp(optarg, "ps") == 0) {
1291 output_action = WRITE_TEXT;
1292 print_format = PR_FMT_PS;
1293 } else if (strcmp(optarg, "pdml") == 0) {
1294 output_action = WRITE_XML;
1295 print_details = TRUE; /* Need details */
1296 print_summary = FALSE; /* Don't allow summary */
1297 } else if (strcmp(optarg, "psml") == 0) {
1298 output_action = WRITE_XML;
1299 print_details = FALSE; /* Don't allow details */
1300 print_summary = TRUE; /* Need summary */
1301 } else if (strcmp(optarg, "fields") == 0) {
1302 output_action = WRITE_FIELDS;
1303 print_details = TRUE; /* Need full tree info */
1304 print_summary = FALSE; /* Don't allow summary */
1305 } else if (strcmp(optarg, "json") == 0) {
1306 output_action = WRITE_JSON;
1307 print_details = TRUE; /* Need details */
1308 print_summary = FALSE; /* Don't allow summary */
1309 } else if (strcmp(optarg, "ek") == 0) {
1310 output_action = WRITE_EK;
1312 print_details = TRUE;
1313 } else if (strcmp(optarg, "jsonraw") == 0) {
1314 output_action = WRITE_JSON_RAW;
1315 print_details = TRUE; /* Need details */
1316 print_summary = FALSE; /* Don't allow summary */
1319 cmdarg_err("Invalid -T parameter \"%s\"; it must be one of:", optarg); /* x */
1320 cmdarg_err_cont("\t\"fields\" The values of fields specified with the -e option, in a form\n"
1321 "\t specified by the -E option.\n"
1322 "\t\"pdml\" Packet Details Markup Language, an XML-based format for the\n"
1323 "\t details of a decoded packet. This information is equivalent to\n"
1324 "\t the packet details printed with the -V flag.\n"
1325 "\t\"ps\" PostScript for a human-readable one-line summary of each of\n"
1326 "\t the packets, or a multi-line view of the details of each of\n"
1327 "\t the packets, depending on whether the -V flag was specified.\n"
1328 "\t\"psml\" Packet Summary Markup Language, an XML-based format for the\n"
1329 "\t summary information of a decoded packet. This information is\n"
1330 "\t equivalent to the information shown in the one-line summary\n"
1331 "\t printed by default.\n"
1332 "\t\"json\" Packet Summary, an JSON-based format for the details\n"
1333 "\t summary information of a decoded packet. This information is \n"
1334 "\t equivalent to the packet details printed with the -V flag.\n"
1335 "\t\"jsonraw\" Packet Details, a JSON-based format for machine parsing\n"
1336 "\t including only raw hex decoded fields (same as -T json -x but\n"
1337 "\t without text decoding, only raw fields included). \n"
1338 "\t\"ek\" Packet Details, an EK JSON-based format for the bulk insert \n"
1339 "\t into elastic search cluster. This information is \n"
1340 "\t equivalent to the packet details printed with the -V flag.\n"
1341 "\t\"text\" Text of a human-readable one-line summary of each of the\n"
1342 "\t packets, or a multi-line view of the details of each of the\n"
1343 "\t packets, depending on whether the -V flag was specified.\n"
1344 "\t This is the default.\n"
1345 "\t\"tabs\" Similar to the text report except that each column of the\n"
1346 "\t human-readable one-line summary is delimited with an ASCII\n"
1347 "\t horizontal tab character.");
1348 exit_status = INVALID_OPTION;
1352 case 'U': /* Export PDUs to file */
1354 GSList *export_pdu_tap_name_list = NULL;
1357 cmdarg_err("A tap name is required. Valid names are:");
1358 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)) {
1359 cmdarg_err("%s\n", (const char*)(export_pdu_tap_name_list->data));
1361 exit_status = INVALID_OPTION;
1364 pdu_export_arg = g_strdup(optarg);
1367 case 'v': /* Show version and exit */
1368 comp_info_str = get_compiled_version_info(get_tshark_compiled_version_info,
1369 epan_get_compiled_version_info);
1370 runtime_info_str = get_runtime_version_info(get_tshark_runtime_version_info);
1371 show_version("TShark (Wireshark)", comp_info_str, runtime_info_str);
1372 g_string_free(comp_info_str, TRUE);
1373 g_string_free(runtime_info_str, TRUE);
1374 /* We don't really have to cleanup here, but it's a convenient way to test
1375 * start-up and shut-down of the epan library without any UI-specific
1376 * cruft getting in the way. Makes the results of running
1377 * $ ./tools/valgrind-wireshark -n
1378 * much more useful. */
1381 exit_status = EXIT_SUCCESS;
1383 case 'O': /* Only output these protocols */
1384 /* already processed; just ignore it now */
1386 case 'V': /* Verbose */
1387 /* already processed; just ignore it now */
1389 case 'x': /* Print packet data in hex (and ASCII) */
1390 /* already processed; just ignore it now */
1393 /* already processed; just ignore it now */
1399 /* We won't call the init function for the stat this soon
1400 as it would disallow MATE's fields (which are registered
1401 by the preferences set callback) from being used as
1402 part of a tap filter. Instead, we just add the argument
1403 to a list of stat arguments. */
1404 if (strcmp("help", optarg) == 0) {
1405 fprintf(stderr, "tshark: The available statistics for the \"-z\" option are:\n");
1406 list_stat_cmd_args();
1407 exit_status = EXIT_SUCCESS;
1410 if (!process_stat_cmd_arg(optarg)) {
1411 cmdarg_err("Invalid -z argument \"%s\"; it must be one of:", optarg);
1412 list_stat_cmd_args();
1413 exit_status = INVALID_OPTION;
1417 case 'd': /* Decode as rule */
1418 case 'K': /* Kerberos keytab file */
1419 case 'n': /* No name resolution */
1420 case 'N': /* Select what types of addresses/port #s to resolve */
1421 case 't': /* Time stamp type */
1422 case 'u': /* Seconds type */
1423 case LONGOPT_DISABLE_PROTOCOL: /* disable dissection of protocol */
1424 case LONGOPT_ENABLE_HEURISTIC: /* enable heuristic dissection of protocol */
1425 case LONGOPT_DISABLE_HEURISTIC: /* disable heuristic dissection of protocol */
1426 case LONGOPT_ENABLE_PROTOCOL: /* enable dissection of protocol (that is disabled by default) */
1427 if (!dissect_opts_handle_opt(opt, optarg)) {
1428 exit_status = INVALID_OPTION;
1432 case LONGOPT_EXPORT_OBJECTS: /* --export-objects */
1433 if (strcmp("help", optarg) == 0) {
1434 fprintf(stderr, "tshark: The available export object types for the \"--export-objects\" option are:\n");
1435 eo_list_object_types();
1436 exit_status = EXIT_SUCCESS;
1439 if (!eo_tap_opt_add(optarg)) {
1440 exit_status = INVALID_OPTION;
1444 case LONGOPT_COLOR: /* print in color where appropriate */
1445 dissect_color = TRUE;
1447 case LONGOPT_NO_DUPLICATE_KEYS:
1448 no_duplicate_keys = TRUE;
1449 node_children_grouper = proto_node_group_children_by_json_key;
1452 case '?': /* Bad flag - print usage message */
1455 list_capture_types();
1458 print_usage(stderr);
1460 exit_status = INVALID_OPTION;
1467 * Print packet summary information is the default if neither -V or -x
1468 * were specified. Note that this is new behavior, which allows for the
1469 * possibility of printing only hex/ascii output without necessarily
1470 * requiring that either the summary or details be printed too.
1472 if (!print_summary && !print_details && !print_hex)
1473 print_summary = TRUE;
1475 if (no_duplicate_keys && output_action != WRITE_JSON && output_action != WRITE_JSON_RAW) {
1476 cmdarg_err("--no-duplicate-keys can only be used with \"-T json\" and \"-T jsonraw\"");
1477 exit_status = INVALID_OPTION;
1481 /* If we specified output fields, but not the output field type... */
1482 if ((WRITE_FIELDS != output_action && WRITE_XML != output_action && WRITE_JSON != output_action && WRITE_EK != output_action) && 0 != output_fields_num_fields(output_fields)) {
1483 cmdarg_err("Output fields were specified with \"-e\", "
1484 "but \"-Tek, -Tfields, -Tjson or -Tpdml\" was not specified.");
1485 exit_status = INVALID_OPTION;
1487 } else if (WRITE_FIELDS == output_action && 0 == output_fields_num_fields(output_fields)) {
1488 cmdarg_err("\"-Tfields\" was specified, but no fields were "
1489 "specified with \"-e\".");
1491 exit_status = INVALID_OPTION;
1495 if (dissect_color) {
1496 if (!color_filters_init(&err_msg, NULL)) {
1497 fprintf(stderr, "%s\n", err_msg);
1502 /* If no capture filter or display filter has been specified, and there are
1503 still command-line arguments, treat them as the tokens of a capture
1504 filter (if no "-r" flag was specified) or a display filter (if a "-r"
1505 flag was specified. */
1506 if (optind < argc) {
1507 if (cf_name != NULL) {
1508 if (dfilter != NULL) {
1509 cmdarg_err("Display filters were specified both with \"-d\" "
1510 "and with additional command-line arguments.");
1511 exit_status = INVALID_OPTION;
1514 dfilter = get_args_as_string(argc, argv, optind);
1519 if (global_capture_opts.default_options.cfilter) {
1520 cmdarg_err("A default capture filter was specified both with \"-f\""
1521 " and with additional command-line arguments.");
1522 exit_status = INVALID_OPTION;
1525 for (i = 0; i < global_capture_opts.ifaces->len; i++) {
1526 interface_options *interface_opts;
1527 interface_opts = &g_array_index(global_capture_opts.ifaces, interface_options, i);
1528 if (interface_opts->cfilter == NULL) {
1529 interface_opts->cfilter = get_args_as_string(argc, argv, optind);
1531 cmdarg_err("A capture filter was specified both with \"-f\""
1532 " and with additional command-line arguments.");
1533 exit_status = INVALID_OPTION;
1537 global_capture_opts.default_options.cfilter = get_args_as_string(argc, argv, optind);
1539 capture_option_specified = TRUE;
1545 if (!global_capture_opts.saving_to_file) {
1546 /* We're not saving the capture to a file; if "-q" wasn't specified,
1547 we should print packet information */
1549 print_packet_info = TRUE;
1551 /* We're saving to a file; if we're writing to the standard output.
1552 and we'll also be writing dissected packets to the standard
1553 output, reject the request. At best, we could redirect that
1554 to the standard error; we *can't* write both to the standard
1555 output and have either of them be useful. */
1556 if (strcmp(global_capture_opts.save_file, "-") == 0 && print_packet_info) {
1557 cmdarg_err("You can't write both raw packet data and dissected packets"
1558 " to the standard output.");
1559 exit_status = INVALID_OPTION;
1564 /* We're not saving the capture to a file; if "-q" wasn't specified,
1565 we should print packet information */
1567 print_packet_info = TRUE;
1570 #ifndef HAVE_LIBPCAP
1571 if (capture_option_specified)
1572 cmdarg_err("This version of TShark was not built with support for capturing packets.");
1575 print_usage(stderr);
1576 exit_status = INVALID_OPTION;
1581 if (output_action != WRITE_TEXT && output_action != WRITE_JSON && output_action != WRITE_JSON_RAW && output_action != WRITE_EK) {
1582 cmdarg_err("Raw packet hex data can only be printed as text, PostScript, JSON, JSONRAW or EK JSON");
1583 exit_status = INVALID_OPTION;
1588 if (output_only != NULL) {
1591 if (!print_details) {
1592 cmdarg_err("-O requires -V");
1593 exit_status = INVALID_OPTION;
1597 output_only_tables = g_hash_table_new (g_str_hash, g_str_equal);
1598 for (ps = strtok (output_only, ","); ps; ps = strtok (NULL, ",")) {
1599 g_hash_table_insert(output_only_tables, (gpointer)ps, (gpointer)ps);
1603 if (rfilter != NULL && !perform_two_pass_analysis) {
1604 cmdarg_err("-R without -2 is deprecated. For single-pass filtering use -Y.");
1605 exit_status = INVALID_OPTION;
1611 /* We're supposed to list the link-layer/timestamp types for an interface;
1612 did the user also specify a capture file to be read? */
1614 /* Yes - that's bogus. */
1615 cmdarg_err("You can't specify %s and a capture file to be read.",
1616 caps_queries & CAPS_QUERY_LINK_TYPES ? "-L" : "--list-time-stamp-types");
1617 exit_status = INVALID_OPTION;
1620 /* No - did they specify a ring buffer option? */
1621 if (global_capture_opts.multi_files_on) {
1622 cmdarg_err("Ring buffer requested, but a capture isn't being done.");
1623 exit_status = INVALID_OPTION;
1629 * "-r" was specified, so we're reading a capture file.
1630 * Capture options don't apply here.
1633 /* We don't support capture filters when reading from a capture file
1634 (the BPF compiler doesn't support all link-layer types that we
1635 support in capture files we read). */
1636 if (global_capture_opts.default_options.cfilter) {
1637 cmdarg_err("Only read filters, not capture filters, "
1638 "can be specified when reading a capture file.");
1639 exit_status = INVALID_OPTION;
1642 if (global_capture_opts.multi_files_on) {
1643 cmdarg_err("Multiple capture files requested, but "
1644 "a capture isn't being done.");
1645 exit_status = INVALID_OPTION;
1648 if (global_capture_opts.has_file_duration) {
1649 cmdarg_err("Switching capture files after a time period was specified, but "
1650 "a capture isn't being done.");
1651 exit_status = INVALID_OPTION;
1654 if (global_capture_opts.has_file_interval) {
1655 cmdarg_err("Switching capture files after a time interval was specified, but "
1656 "a capture isn't being done.");
1657 exit_status = INVALID_OPTION;
1660 if (global_capture_opts.has_ring_num_files) {
1661 cmdarg_err("A ring buffer of capture files was specified, but "
1662 "a capture isn't being done.");
1663 exit_status = INVALID_OPTION;
1666 if (global_capture_opts.has_autostop_files) {
1667 cmdarg_err("A maximum number of capture files was specified, but "
1668 "a capture isn't being done.");
1669 exit_status = INVALID_OPTION;
1672 if (global_capture_opts.capture_comment) {
1673 cmdarg_err("A capture comment was specified, but "
1674 "a capture isn't being done.\nThere's no support for adding "
1675 "a capture comment to an existing capture file.");
1676 exit_status = INVALID_OPTION;
1680 /* Note: TShark now allows the restriction of a _read_ file by packet count
1681 * and byte count as well as a write file. Other autostop options remain valid
1682 * only for a write file.
1684 if (global_capture_opts.has_autostop_duration) {
1685 cmdarg_err("A maximum capture time was specified, but "
1686 "a capture isn't being done.");
1687 exit_status = INVALID_OPTION;
1692 * "-r" wasn't specified, so we're doing a live capture.
1694 if (perform_two_pass_analysis) {
1695 /* Two-pass analysis doesn't work with live capture since it requires us
1696 * to buffer packets until we've read all of them, but a live capture
1697 * has no useful/meaningful definition of "all" */
1698 cmdarg_err("Live captures do not support two-pass analysis.");
1699 exit_status = INVALID_OPTION;
1703 if (global_capture_opts.saving_to_file) {
1704 /* They specified a "-w" flag, so we'll be saving to a capture file. */
1706 /* When capturing, we only support writing pcap or pcapng format. */
1707 if (out_file_type != WTAP_FILE_TYPE_SUBTYPE_PCAP &&
1708 out_file_type != WTAP_FILE_TYPE_SUBTYPE_PCAPNG) {
1709 cmdarg_err("Live captures can only be saved in pcap or pcapng format.");
1710 exit_status = INVALID_OPTION;
1713 if (global_capture_opts.capture_comment &&
1714 out_file_type != WTAP_FILE_TYPE_SUBTYPE_PCAPNG) {
1715 cmdarg_err("A capture comment can only be written to a pcapng file.");
1716 exit_status = INVALID_OPTION;
1719 if (global_capture_opts.multi_files_on) {
1720 /* Multiple-file mode doesn't work under certain conditions:
1721 a) it doesn't work if you're writing to the standard output;
1722 b) it doesn't work if you're writing to a pipe;
1724 if (strcmp(global_capture_opts.save_file, "-") == 0) {
1725 cmdarg_err("Multiple capture files requested, but "
1726 "the capture is being written to the standard output.");
1727 exit_status = INVALID_OPTION;
1730 if (global_capture_opts.output_to_pipe) {
1731 cmdarg_err("Multiple capture files requested, but "
1732 "the capture file is a pipe.");
1733 exit_status = INVALID_OPTION;
1736 if (!global_capture_opts.has_autostop_filesize &&
1737 !global_capture_opts.has_file_duration &&
1738 !global_capture_opts.has_file_interval) {
1739 cmdarg_err("Multiple capture files requested, but "
1740 "no maximum capture file size, duration or interval was specified.");
1741 exit_status = INVALID_OPTION;
1745 /* Currently, we don't support read or display filters when capturing
1746 and saving the packets. */
1747 if (rfilter != NULL) {
1748 cmdarg_err("Read filters aren't supported when capturing and saving the captured packets.");
1749 exit_status = INVALID_OPTION;
1752 if (dfilter != NULL) {
1753 cmdarg_err("Display filters aren't supported when capturing and saving the captured packets.");
1754 exit_status = INVALID_OPTION;
1757 global_capture_opts.use_pcapng = (out_file_type == WTAP_FILE_TYPE_SUBTYPE_PCAPNG) ? TRUE : FALSE;
1759 /* They didn't specify a "-w" flag, so we won't be saving to a
1760 capture file. Check for options that only make sense if
1761 we're saving to a file. */
1762 if (global_capture_opts.has_autostop_filesize) {
1763 cmdarg_err("Maximum capture file size specified, but "
1764 "capture isn't being saved to a file.");
1765 exit_status = INVALID_OPTION;
1768 if (global_capture_opts.multi_files_on) {
1769 cmdarg_err("Multiple capture files requested, but "
1770 "the capture isn't being saved to a file.");
1771 exit_status = INVALID_OPTION;
1774 if (global_capture_opts.capture_comment) {
1775 cmdarg_err("A capture comment was specified, but "
1776 "the capture isn't being saved to a file.");
1777 exit_status = INVALID_OPTION;
1786 /* Start windows sockets */
1787 result = WSAStartup( MAKEWORD( 1, 1 ), &wsaData );
1790 exit_status = INIT_FAILED;
1795 /* Notify all registered modules that have had any of their preferences
1796 changed either from one of the preferences file or from the command
1797 line that their preferences have changed. */
1800 /* We can also enable specified taps for export object */
1801 start_exportobjects();
1803 /* At this point MATE will have registered its field array so we can
1804 check if the fields specified by the user are all good.
1808 GSList *invalid_fields = output_fields_valid(output_fields);
1809 if (invalid_fields != NULL) {
1811 cmdarg_err("Some fields aren't valid:");
1812 for (it=invalid_fields; it != NULL; it = g_slist_next(it)) {
1813 cmdarg_err_cont("\t%s", (gchar *)it->data);
1815 g_slist_free(invalid_fields);
1816 exit_status = INVALID_OPTION;
1821 /* We currently don't support taps, or printing dissected packets,
1822 if we're writing to a pipe. */
1823 if (global_capture_opts.saving_to_file &&
1824 global_capture_opts.output_to_pipe) {
1825 if (tap_listeners_require_dissection()) {
1826 cmdarg_err("Taps aren't supported when saving to a pipe.");
1827 exit_status = INVALID_OPTION;
1830 if (print_packet_info) {
1831 cmdarg_err("Printing dissected packets isn't supported when saving to a pipe.");
1832 exit_status = INVALID_OPTION;
1838 if (ex_opt_count("read_format") > 0) {
1839 const gchar* name = ex_opt_get_next("read_format");
1840 in_file_type = open_info_name_to_type(name);
1841 if (in_file_type == WTAP_TYPE_AUTO) {
1842 cmdarg_err("\"%s\" isn't a valid read file format type", name? name : "");
1843 list_read_capture_types();
1844 exit_status = INVALID_OPTION;
1849 timestamp_set_type(global_dissect_options.time_format);
1852 * Enabled and disabled protocols and heuristic dissectors as per
1853 * command-line options.
1855 if (!setup_enabled_and_disabled_protocols()) {
1856 exit_status = INVALID_OPTION;
1860 /* Build the column format array */
1861 build_column_format_array(&cfile.cinfo, prefs_p->num_cols, TRUE);
1864 capture_opts_trim_snaplen(&global_capture_opts, MIN_PACKET_SIZE);
1865 capture_opts_trim_ring_num_files(&global_capture_opts);
1868 if (rfilter != NULL) {
1869 tshark_debug("Compiling read filter: '%s'", rfilter);
1870 if (!dfilter_compile(rfilter, &rfcode, &err_msg)) {
1871 cmdarg_err("%s", err_msg);
1875 #ifdef HAVE_PCAP_OPEN_DEAD
1879 pc = pcap_open_dead(DLT_EN10MB, MIN_PACKET_SIZE);
1881 if (pcap_compile(pc, &fcode, rfilter, 0, 0) != -1) {
1883 " Note: That read filter code looks like a valid capture filter;\n"
1884 " maybe you mixed them up?");
1890 exit_status = INVALID_INTERFACE;
1894 cfile.rfcode = rfcode;
1896 if (dfilter != NULL) {
1897 tshark_debug("Compiling display filter: '%s'", dfilter);
1898 if (!dfilter_compile(dfilter, &dfcode, &err_msg)) {
1899 cmdarg_err("%s", err_msg);
1903 #ifdef HAVE_PCAP_OPEN_DEAD
1907 pc = pcap_open_dead(DLT_EN10MB, MIN_PACKET_SIZE);
1909 if (pcap_compile(pc, &fcode, dfilter, 0, 0) != -1) {
1911 " Note: That display filter code looks like a valid capture filter;\n"
1912 " maybe you mixed them up?");
1918 exit_status = INVALID_FILTER;
1922 cfile.dfcode = dfcode;
1924 if (print_packet_info) {
1925 /* If we're printing as text or PostScript, we have
1926 to create a print stream. */
1927 if (output_action == WRITE_TEXT) {
1928 switch (print_format) {
1931 print_stream = print_stream_text_stdio_new(stdout);
1935 print_stream = print_stream_ps_stdio_new(stdout);
1939 g_assert_not_reached();
1944 /* PDU export requested. Take the ownership of the '-w' file, apply tap
1945 * filters and start tapping. */
1946 if (pdu_export_arg) {
1947 const char *exp_pdu_tap_name = pdu_export_arg;
1948 const char *exp_pdu_filter = dfilter; /* may be NULL to disable filter */
1949 char *exp_pdu_error;
1954 cmdarg_err("PDUs export requires a capture file (specify with -r).");
1955 exit_status = INVALID_OPTION;
1958 /* Take ownership of the '-w' output file. */
1960 exp_pdu_filename = global_capture_opts.save_file;
1961 global_capture_opts.save_file = NULL;
1963 exp_pdu_filename = output_file_name;
1964 output_file_name = NULL;
1966 if (exp_pdu_filename == NULL) {
1967 cmdarg_err("PDUs export requires an output file (-w).");
1968 exit_status = INVALID_OPTION;
1972 exp_pdu_error = exp_pdu_pre_open(exp_pdu_tap_name, exp_pdu_filter,
1974 if (exp_pdu_error) {
1975 cmdarg_err("Cannot register tap: %s", exp_pdu_error);
1976 g_free(exp_pdu_error);
1977 exit_status = INVALID_TAP;
1981 exp_fd = ws_open(exp_pdu_filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0644);
1983 cmdarg_err("%s: %s", exp_pdu_filename, file_open_error_message(errno, TRUE));
1984 exit_status = INVALID_FILE;
1988 /* Activate the export PDU tap */
1989 comment = g_strdup_printf("Dump of PDUs from %s", cf_name);
1990 err = exp_pdu_open(&exp_pdu_tap_data, exp_fd, comment);
1992 cfile_dump_open_failure_message("TShark", exp_pdu_filename, err,
1993 WTAP_FILE_TYPE_SUBTYPE_PCAPNG);
1995 exit_status = INVALID_EXPORT;
2000 tshark_debug("tshark: do_dissection = %s", do_dissection ? "TRUE" : "FALSE");
2003 tshark_debug("tshark: Opening capture file: %s", cf_name);
2005 * We're reading a capture file.
2007 if (cf_open(&cfile, cf_name, in_file_type, FALSE, &err) != CF_OK) {
2010 exit_status = INVALID_FILE;
2014 /* Start statistics taps; we do so after successfully opening the
2015 capture file, so we know we have something to compute stats
2016 on, and after registering all dissectors, so that MATE will
2017 have registered its field array so we can have a tap filter
2018 with one of MATE's late-registered fields as part of the
2020 start_requested_stats();
2022 /* Do we need to do dissection of packets? That depends on, among
2023 other things, what taps are listening, so determine that after
2024 starting the statistics taps. */
2025 do_dissection = must_do_dissection(rfcode, dfcode, pdu_export_arg);
2027 /* Process the packets in the file */
2028 tshark_debug("tshark: invoking process_cap_file() to process the packets");
2031 success = process_cap_file(&cfile, global_capture_opts.save_file, out_file_type, out_file_name_res,
2032 global_capture_opts.has_autostop_packets ? global_capture_opts.autostop_packets : 0,
2033 global_capture_opts.has_autostop_filesize ? global_capture_opts.autostop_filesize : 0);
2035 success = process_cap_file(&cfile, output_file_name, out_file_type, out_file_name_res, 0, 0);
2038 CATCH(OutOfMemoryError) {
2042 "Sorry, but TShark has to terminate now.\n"
2044 "More information and workarounds can be found at\n"
2045 "https://wiki.wireshark.org/KnownBugs/OutOfMemory\n");
2051 /* We still dump out the results of taps, etc., as we might have
2052 read some packets; however, we exit with an error status. */
2056 if (pdu_export_arg) {
2057 err = exp_pdu_close(&exp_pdu_tap_data);
2059 cfile_close_failure_message(exp_pdu_filename, err);
2062 g_free(pdu_export_arg);
2065 tshark_debug("tshark: no capture file specified");
2066 /* No capture file specified, so we're supposed to do a live capture
2067 or get a list of link-layer types for a live capture device;
2068 do we have support for live captures? */
2070 /* if no interface was specified, pick a default */
2071 exit_status = capture_opts_default_iface_if_necessary(&global_capture_opts,
2072 ((prefs_p->capture_device) && (*prefs_p->capture_device != '\0')) ? get_if_name(prefs_p->capture_device) : NULL);
2073 if (exit_status != 0) {
2077 /* if requested, list the link layer types and exit */
2081 /* Get the list of link-layer types for the capture devices. */
2082 for (i = 0; i < global_capture_opts.ifaces->len; i++) {
2083 interface_options *interface_opts;
2084 if_capabilities_t *caps;
2085 char *auth_str = NULL;
2086 int if_caps_queries = caps_queries;
2088 interface_opts = &g_array_index(global_capture_opts.ifaces, interface_options, i);
2089 #ifdef HAVE_PCAP_REMOTE
2090 if (interface_opts->auth_type == CAPTURE_AUTH_PWD) {
2091 auth_str = g_strdup_printf("%s:%s", interface_opts->auth_username, interface_opts->auth_password);
2094 caps = capture_get_if_capabilities(interface_opts->name, interface_opts->monitor_mode, auth_str, &err_str, NULL);
2097 cmdarg_err("%s", err_str);
2099 exit_status = INVALID_CAPABILITY;
2102 if ((if_caps_queries & CAPS_QUERY_LINK_TYPES) && caps->data_link_types == NULL) {
2103 cmdarg_err("The capture device \"%s\" has no data link types.", interface_opts->name);
2104 exit_status = INVALID_DATA_LINK;
2107 if ((if_caps_queries & CAPS_QUERY_TIMESTAMP_TYPES) && caps->timestamp_types == NULL) {
2108 cmdarg_err("The capture device \"%s\" has no timestamp types.", interface_opts->name);
2109 exit_status = INVALID_TIMESTAMP_TYPE;
2112 if (interface_opts->monitor_mode)
2113 if_caps_queries |= CAPS_MONITOR_MODE;
2114 capture_opts_print_if_capabilities(caps, interface_opts->name, if_caps_queries);
2115 free_if_capabilities(caps);
2117 exit_status = EXIT_SUCCESS;
2122 * If the standard error isn't a terminal, don't print packet counts,
2123 * as they won't show up on the user's terminal and they'll get in
2124 * the way of error messages in the file (to which we assume the
2125 * standard error was redirected; if it's redirected to the null
2126 * device, there's no point in printing packet counts anyway).
2128 * Otherwise, if we're printing packet information and the standard
2129 * output is a terminal (which we assume means the standard output and
2130 * error are going to the same terminal), don't print packet counts,
2131 * as they'll get in the way of the packet information.
2133 * Otherwise, if the user specified -q, don't print packet counts.
2135 * Otherwise, print packet counts.
2137 * XXX - what if the user wants to do a live capture, doesn't want
2138 * to save it to a file, doesn't want information printed for each
2139 * packet, does want some "-z" statistic, and wants packet counts
2140 * so they know whether they're seeing any packets? -q will
2141 * suppress the information printed for each packet, but it'll
2142 * also suppress the packet counts.
2144 if (!ws_isatty(ws_fileno(stderr)))
2145 print_packet_counts = FALSE;
2146 else if (print_packet_info && ws_isatty(ws_fileno(stdout)))
2147 print_packet_counts = FALSE;
2149 print_packet_counts = FALSE;
2151 print_packet_counts = TRUE;
2153 if (print_packet_info) {
2154 if (!write_preamble(&cfile)) {
2155 show_print_file_io_error(errno);
2156 exit_status = INVALID_FILE;
2161 tshark_debug("tshark: performing live capture");
2163 /* Start statistics taps; we should only do so after the capture
2164 started successfully, so we know we have something to compute
2165 stats, but we currently don't check for that - see below.
2167 We do so after registering all dissectors, so that MATE will
2168 have registered its field array so we can have a tap filter
2169 with one of MATE's late-registered fields as part of the
2171 start_requested_stats();
2173 /* Do we need to do dissection of packets? That depends on, among
2174 other things, what taps are listening, so determine that after
2175 starting the statistics taps. */
2176 do_dissection = must_do_dissection(rfcode, dfcode, pdu_export_arg);
2179 * XXX - this returns FALSE if an error occurred, but it also
2180 * returns FALSE if the capture stops because a time limit
2181 * was reached (and possibly other limits), so we can't assume
2182 * it means an error.
2184 * The capture code is a bit twisty, so it doesn't appear to
2185 * be an easy fix. We just ignore the return value for now.
2186 * Instead, pass on the exit status from the capture child.
2189 exit_status = global_capture_session.fork_child_status;
2191 if (print_packet_info) {
2192 if (!write_finale()) {
2193 show_print_file_io_error(errno);
2197 /* No - complain. */
2198 cmdarg_err("This version of TShark was not built with support for capturing packets.");
2199 exit_status = INVALID_CAPTURE;
2206 if (cfile.provider.frames != NULL) {
2207 free_frame_data_sequence(cfile.provider.frames);
2208 cfile.provider.frames = NULL;
2211 draw_tap_listeners(TRUE);
2212 funnel_dump_all_text_windows();
2213 epan_free(cfile.epan);
2217 output_fields_free(output_fields);
2218 output_fields = NULL;
2221 destroy_print_stream(print_stream);
2223 capture_opts_cleanup(&global_capture_opts);
2225 col_cleanup(&cfile.cinfo);
2226 free_filter_lists();
2233 /*#define USE_BROKEN_G_MAIN_LOOP*/
2235 #ifdef USE_BROKEN_G_MAIN_LOOP
2238 gboolean loop_running = FALSE;
2240 guint32 packet_count = 0;
2243 typedef struct pipe_input_tag {
2246 ws_process_id *child_process;
2247 pipe_input_cb_t input_cb;
2248 guint pipe_input_id;
2250 GMutex *callback_running;
2254 static pipe_input_t pipe_input;
2257 /* The timer has expired, see if there's stuff to read from the pipe,
2258 if so, do the callback */
2260 pipe_timer_cb(gpointer data)
2266 pipe_input_t *pipe_input_p = data;
2267 gint iterations = 0;
2269 g_mutex_lock (pipe_input_p->callback_running);
2271 /* try to read data from the pipe only 5 times, to avoid blocking */
2272 while(iterations < 5) {
2273 /*g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_timer_cb: new iteration");*/
2275 /* Oddly enough although Named pipes don't work on win9x,
2276 PeekNamedPipe does !!! */
2277 handle = (HANDLE) _get_osfhandle (pipe_input_p->source);
2278 result = PeekNamedPipe(handle, NULL, 0, NULL, &avail, NULL);
2280 /* Get the child process exit status */
2281 GetExitCodeProcess((HANDLE)*(pipe_input_p->child_process),
2284 /* If the Peek returned an error, or there are bytes to be read
2285 or the childwatcher thread has terminated then call the normal
2287 if (!result || avail > 0 || childstatus != STILL_ACTIVE) {
2289 /*g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_timer_cb: data avail");*/
2291 /* And call the real handler */
2292 if (!pipe_input_p->input_cb(pipe_input_p->source, pipe_input_p->user_data)) {
2293 g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_timer_cb: input pipe closed, iterations: %u", iterations);
2294 /* pipe closed, return false so that the timer is stopped */
2295 g_mutex_unlock (pipe_input_p->callback_running);
2300 /*g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_timer_cb: no data avail");*/
2301 /* No data, stop now */
2308 /*g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_timer_cb: finished with iterations: %u, new timer", iterations);*/
2310 g_mutex_unlock (pipe_input_p->callback_running);
2312 /* we didn't stopped the timer, so let it run */
2319 pipe_input_set_handler(gint source, gpointer user_data, ws_process_id *child_process, pipe_input_cb_t input_cb)
2322 pipe_input.source = source;
2323 pipe_input.child_process = child_process;
2324 pipe_input.user_data = user_data;
2325 pipe_input.input_cb = input_cb;
2328 #if GLIB_CHECK_VERSION(2,31,0)
2329 pipe_input.callback_running = g_malloc(sizeof(GMutex));
2330 g_mutex_init(pipe_input.callback_running);
2332 pipe_input.callback_running = g_mutex_new();
2334 /* Tricky to use pipes in win9x, as no concept of wait. NT can
2335 do this but that doesn't cover all win32 platforms. GTK can do
2336 this but doesn't seem to work over processes. Attempt to do
2337 something similar here, start a timer and check for data on every
2339 /*g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_input_set_handler: new");*/
2340 pipe_input.pipe_input_id = g_timeout_add(200, pipe_timer_cb, &pipe_input);
2344 static const nstime_t *
2345 tshark_get_frame_ts(struct packet_provider_data *prov, guint32 frame_num)
2347 if (prov->ref && prov->ref->num == frame_num)
2348 return &prov->ref->abs_ts;
2350 if (prov->prev_dis && prov->prev_dis->num == frame_num)
2351 return &prov->prev_dis->abs_ts;
2353 if (prov->prev_cap && prov->prev_cap->num == frame_num)
2354 return &prov->prev_cap->abs_ts;
2357 frame_data *fd = frame_data_sequence_find(prov->frames, frame_num);
2359 return (fd) ? &fd->abs_ts : NULL;
2366 tshark_epan_new(capture_file *cf)
2368 static const struct packet_provider_funcs funcs = {
2369 tshark_get_frame_ts,
2370 cap_file_provider_get_interface_name,
2371 cap_file_provider_get_interface_description,
2375 return epan_new(&cf->provider, &funcs);
2385 #ifdef USE_TSHARK_SELECT
2389 struct sigaction action, oldaction;
2392 /* Create new dissection section. */
2393 epan_free(cfile.epan);
2394 cfile.epan = tshark_epan_new(&cfile);
2397 /* Catch a CTRL+C event and, if we get it, clean up and exit. */
2398 SetConsoleCtrlHandler(capture_cleanup, TRUE);
2400 /* Catch SIGINT and SIGTERM and, if we get either of them,
2401 clean up and exit. If SIGHUP isn't being ignored, catch
2402 it too and, if we get it, clean up and exit.
2404 We restart any read that was in progress, so that it doesn't
2405 disrupt reading from the sync pipe. The signal handler tells
2406 the capture child to finish; it will report that it finished,
2407 or will exit abnormally, so we'll stop reading from the sync
2408 pipe, pick up the exit status, and quit. */
2409 memset(&action, 0, sizeof(action));
2410 action.sa_handler = capture_cleanup;
2411 action.sa_flags = SA_RESTART;
2412 sigemptyset(&action.sa_mask);
2413 sigaction(SIGTERM, &action, NULL);
2414 sigaction(SIGINT, &action, NULL);
2415 sigaction(SIGHUP, NULL, &oldaction);
2416 if (oldaction.sa_handler == SIG_DFL)
2417 sigaction(SIGHUP, &action, NULL);
2420 /* Catch SIGINFO and, if we get it and we're capturing to a file in
2421 quiet mode, report the number of packets we've captured.
2423 Again, restart any read that was in progress, so that it doesn't
2424 disrupt reading from the sync pipe. */
2425 action.sa_handler = report_counts_siginfo;
2426 action.sa_flags = SA_RESTART;
2427 sigemptyset(&action.sa_mask);
2428 sigaction(SIGINFO, &action, NULL);
2429 #endif /* SIGINFO */
2432 global_capture_session.state = CAPTURE_PREPARING;
2434 /* Let the user know which interfaces were chosen. */
2435 for (i = 0; i < global_capture_opts.ifaces->len; i++) {
2436 interface_options *interface_opts;
2438 interface_opts = &g_array_index(global_capture_opts.ifaces, interface_options, i);
2439 interface_opts->descr = get_interface_descriptive_name(interface_opts->name);
2441 str = get_iface_list_string(&global_capture_opts, IFLIST_QUOTE_IF_DESCRIPTION);
2442 if (really_quiet == FALSE)
2443 fprintf(stderr, "Capturing on %s\n", str->str);
2445 g_string_free(str, TRUE);
2447 ret = sync_pipe_start(&global_capture_opts, &global_capture_session, &global_info_data, NULL);
2452 /* the actual capture loop
2454 * XXX - glib doesn't seem to provide any event based loop handling.
2456 * XXX - for whatever reason,
2457 * calling g_main_loop_new() ends up in 100% cpu load.
2459 * But that doesn't matter: in UNIX we can use select() to find an input
2460 * source with something to do.
2462 * But that doesn't matter because we're in a CLI (that doesn't need to
2463 * update a GUI or something at the same time) so it's OK if we block
2464 * trying to read from the pipe.
2466 * So all the stuff in USE_TSHARK_SELECT could be removed unless I'm
2467 * wrong (but I leave it there in case I am...).
2470 #ifdef USE_TSHARK_SELECT
2472 FD_SET(pipe_input.source, &readfds);
2475 loop_running = TRUE;
2479 while (loop_running)
2481 #ifdef USE_TSHARK_SELECT
2482 ret = select(pipe_input.source+1, &readfds, NULL, NULL, NULL);
2486 fprintf(stderr, "%s: %s\n", "select()", g_strerror(errno));
2488 } else if (ret == 1) {
2490 /* Call the real handler */
2491 if (!pipe_input.input_cb(pipe_input.source, pipe_input.user_data)) {
2492 g_log(NULL, G_LOG_LEVEL_DEBUG, "input pipe closed");
2495 #ifdef USE_TSHARK_SELECT
2500 CATCH(OutOfMemoryError) {
2504 "Sorry, but TShark has to terminate now.\n"
2506 "More information and workarounds can be found at\n"
2507 "https://wiki.wireshark.org/KnownBugs/OutOfMemory\n");
2514 /* capture child detected an error */
2516 capture_input_error_message(capture_session *cap_session _U_, char *error_msg, char *secondary_error_msg)
2518 cmdarg_err("%s", error_msg);
2519 cmdarg_err_cont("%s", secondary_error_msg);
2523 /* capture child detected an capture filter related error */
2525 capture_input_cfilter_error_message(capture_session *cap_session, guint i, char *error_message)
2527 capture_options *capture_opts = cap_session->capture_opts;
2528 dfilter_t *rfcode = NULL;
2529 interface_options *interface_opts;
2531 g_assert(i < capture_opts->ifaces->len);
2532 interface_opts = &g_array_index(capture_opts->ifaces, interface_options, i);
2534 if (dfilter_compile(interface_opts->cfilter, &rfcode, NULL) && rfcode != NULL) {
2536 "Invalid capture filter \"%s\" for interface '%s'.\n"
2538 "That string looks like a valid display filter; however, it isn't a valid\n"
2539 "capture filter (%s).\n"
2541 "Note that display filters and capture filters don't have the same syntax,\n"
2542 "so you can't use most display filter expressions as capture filters.\n"
2544 "See the User's Guide for a description of the capture filter syntax.",
2545 interface_opts->cfilter, interface_opts->descr, error_message);
2546 dfilter_free(rfcode);
2549 "Invalid capture filter \"%s\" for interface '%s'.\n"
2551 "That string isn't a valid capture filter (%s).\n"
2552 "See the User's Guide for a description of the capture filter syntax.",
2553 interface_opts->cfilter, interface_opts->descr, error_message);
2558 /* capture child tells us we have a new (or the first) capture file */
2560 capture_input_new_file(capture_session *cap_session, gchar *new_file)
2562 capture_options *capture_opts = cap_session->capture_opts;
2563 capture_file *cf = (capture_file *) cap_session->cf;
2564 gboolean is_tempfile;
2567 if (cap_session->state == CAPTURE_PREPARING) {
2568 g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_MESSAGE, "Capture started.");
2570 g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_MESSAGE, "File: \"%s\"", new_file);
2572 g_assert(cap_session->state == CAPTURE_PREPARING || cap_session->state == CAPTURE_RUNNING);
2574 /* free the old filename */
2575 if (capture_opts->save_file != NULL) {
2577 /* we start a new capture file, close the old one (if we had one before) */
2578 if (cf->state != FILE_CLOSED) {
2579 if (cf->provider.wth != NULL) {
2580 wtap_close(cf->provider.wth);
2581 cf->provider.wth = NULL;
2583 cf->state = FILE_CLOSED;
2586 g_free(capture_opts->save_file);
2587 is_tempfile = FALSE;
2589 epan_free(cf->epan);
2590 cf->epan = tshark_epan_new(cf);
2592 /* we didn't had a save_file before, must be a tempfile */
2596 /* save the new filename */
2597 capture_opts->save_file = g_strdup(new_file);
2599 /* if we are in real-time mode, open the new file now */
2600 if (do_dissection) {
2601 /* this is probably unecessary, but better safe than sorry */
2602 ((capture_file *)cap_session->cf)->open_type = WTAP_TYPE_AUTO;
2603 /* Attempt to open the capture file and set up to read from it. */
2604 switch(cf_open((capture_file *)cap_session->cf, capture_opts->save_file, WTAP_TYPE_AUTO, is_tempfile, &err)) {
2608 /* Don't unlink (delete) the save file - leave it around,
2609 for debugging purposes. */
2610 g_free(capture_opts->save_file);
2611 capture_opts->save_file = NULL;
2616 cap_session->state = CAPTURE_RUNNING;
2622 /* capture child tells us we have new packets to read */
2624 capture_input_new_packets(capture_session *cap_session, int to_read)
2630 capture_file *cf = (capture_file *)cap_session->cf;
2631 gboolean filtering_tap_listeners;
2636 * Prevent a SIGINFO handler from writing to the standard error while
2637 * we're doing so or writing to the standard output; instead, have it
2638 * just set a flag telling us to print that information when we're done.
2641 #endif /* SIGINFO */
2643 /* Do we have any tap listeners with filters? */
2644 filtering_tap_listeners = have_filtering_tap_listeners();
2646 /* Get the union of the flags for all tap listeners. */
2647 tap_flags = union_of_tap_listener_flags();
2649 if (do_dissection) {
2650 gboolean create_proto_tree;
2651 epan_dissect_t *edt;
2654 * Determine whether we need to create a protocol tree.
2657 * we're going to apply a read filter;
2659 * we're going to apply a display filter;
2661 * we're going to print the protocol tree;
2663 * one of the tap listeners is going to apply a filter;
2665 * one of the tap listeners requires a protocol tree;
2667 * a postdissector wants field values or protocols
2668 * on the first pass;
2670 * we have custom columns (which require field values, which
2671 * currently requires that we build a protocol tree).
2674 (cf->rfcode || cf->dfcode || print_details || filtering_tap_listeners ||
2675 (tap_flags & TL_REQUIRES_PROTO_TREE) || postdissectors_want_hfids() ||
2676 have_custom_cols(&cf->cinfo) || dissect_color);
2678 /* The protocol tree will be "visible", i.e., printed, only if we're
2679 printing packet details, which is true if we're printing stuff
2680 ("print_packet_info" is true) and we're in verbose mode
2681 ("packet_details" is true). */
2682 edt = epan_dissect_new(cf->epan, create_proto_tree, print_packet_info && print_details);
2684 while (to_read-- && cf->provider.wth) {
2685 wtap_cleareof(cf->provider.wth);
2686 ret = wtap_read(cf->provider.wth, &err, &err_info, &data_offset);
2687 reset_epan_mem(cf, edt, create_proto_tree, print_packet_info && print_details);
2689 /* read from file failed, tell the capture child to stop */
2690 sync_pipe_stop(cap_session);
2691 wtap_close(cf->provider.wth);
2692 cf->provider.wth = NULL;
2694 ret = process_packet_single_pass(cf, edt, data_offset,
2695 wtap_get_rec(cf->provider.wth),
2696 wtap_get_buf_ptr(cf->provider.wth), tap_flags);
2699 /* packet successfully read and gone through the "Read Filter" */
2704 epan_dissect_free(edt);
2708 * Dumpcap's doing all the work; we're not doing any dissection.
2709 * Count all the packets it wrote.
2711 packet_count += to_read;
2714 if (print_packet_counts) {
2715 /* We're printing packet counts. */
2716 if (packet_count != 0) {
2717 fprintf(stderr, "\r%u ", packet_count);
2718 /* stderr could be line buffered */
2725 * Allow SIGINFO handlers to write.
2730 * If a SIGINFO handler asked us to write out capture counts, do so.
2734 #endif /* SIGINFO */
2740 if ((print_packet_counts == FALSE) && (really_quiet == FALSE)) {
2741 /* Report the count only if we aren't printing a packet count
2742 as packets arrive. */
2743 fprintf(stderr, "%u packet%s captured\n", packet_count,
2744 plurality(packet_count, "", "s"));
2747 infoprint = FALSE; /* we just reported it */
2748 #endif /* SIGINFO */
2753 report_counts_siginfo(int signum _U_)
2755 int sav_errno = errno;
2756 /* If we've been told to delay printing, just set a flag asking
2757 that we print counts (if we're supposed to), otherwise print
2758 the count of packets captured (if we're supposed to). */
2765 #endif /* SIGINFO */
2768 /* capture child detected any packet drops? */
2770 capture_input_drops(capture_session *cap_session _U_, guint32 dropped)
2772 if (print_packet_counts) {
2773 /* We're printing packet counts to stderr.
2774 Send a newline so that we move to the line after the packet count. */
2775 fprintf(stderr, "\n");
2779 /* We're printing packet counts to stderr.
2780 Send a newline so that we move to the line after the packet count. */
2781 fprintf(stderr, "%u packet%s dropped\n", dropped, plurality(dropped, "", "s"));
2787 * Capture child closed its side of the pipe, report any error and
2788 * do the required cleanup.
2791 capture_input_closed(capture_session *cap_session, gchar *msg)
2793 capture_file *cf = (capture_file *) cap_session->cf;
2796 fprintf(stderr, "tshark: %s\n", msg);
2800 if (cf != NULL && cf->provider.wth != NULL) {
2801 wtap_close(cf->provider.wth);
2802 if (cf->is_tempfile) {
2803 ws_unlink(cf->filename);
2806 #ifdef USE_BROKEN_G_MAIN_LOOP
2807 /*g_main_loop_quit(loop);*/
2808 g_main_loop_quit(loop);
2810 loop_running = FALSE;
2819 capture_cleanup(DWORD ctrltype _U_)
2821 /* CTRL_C_EVENT is sort of like SIGINT, CTRL_BREAK_EVENT is unique to
2822 Windows, CTRL_CLOSE_EVENT is sort of like SIGHUP, CTRL_LOGOFF_EVENT
2823 is also sort of like SIGHUP, and CTRL_SHUTDOWN_EVENT is sort of
2824 like SIGTERM at least when the machine's shutting down.
2826 For now, we handle them all as indications that we should clean up
2827 and quit, just as we handle SIGINT, SIGHUP, and SIGTERM in that
2830 We must return TRUE so that no other handler - such as one that would
2831 terminate the process - gets called.
2833 XXX - for some reason, typing ^C to TShark, if you run this in
2834 a Cygwin console window in at least some versions of Cygwin,
2835 causes TShark to terminate immediately; this routine gets
2836 called, but the main loop doesn't get a chance to run and
2837 exit cleanly, at least if this is compiled with Microsoft Visual
2838 C++ (i.e., it's a property of the Cygwin console window or Bash;
2839 it happens if TShark is not built with Cygwin - for all I know,
2840 building it with Cygwin may make the problem go away). */
2842 /* tell the capture child to stop */
2843 sync_pipe_stop(&global_capture_session);
2845 /* don't stop our own loop already here, otherwise status messages and
2846 * cleanup wouldn't be done properly. The child will indicate the stop of
2847 * everything by calling capture_input_closed() later */
2853 capture_cleanup(int signum _U_)
2855 /* tell the capture child to stop */
2856 sync_pipe_stop(&global_capture_session);
2858 /* don't stop our own loop already here, otherwise status messages and
2859 * cleanup wouldn't be done properly. The child will indicate the stop of
2860 * everything by calling capture_input_closed() later */
2863 #endif /* HAVE_LIBPCAP */
2866 process_packet_first_pass(capture_file *cf, epan_dissect_t *edt,
2867 gint64 offset, wtap_rec *rec,
2874 /* The frame number of this packet is one more than the count of
2875 frames in this packet. */
2876 framenum = cf->count + 1;
2878 /* If we're not running a display filter and we're not printing any
2879 packet information, we don't need to do a dissection. This means
2880 that all packets can be marked as 'passed'. */
2883 frame_data_init(&fdlocal, framenum, rec, offset, cum_bytes);
2885 /* If we're going to run a read filter or a display filter, set up to
2886 do a dissection and do so. (This is the first pass of two passes
2887 over the packets, so we will not be printing any information
2888 from the dissection or running taps on the packet; if we're doing
2889 any of that, we'll do it in the second pass.) */
2891 if (gbl_resolv_flags.mac_name || gbl_resolv_flags.network_name ||
2892 gbl_resolv_flags.transport_name)
2893 /* Grab any resolved addresses */
2894 host_name_lookup_process();
2896 /* If we're running a read filter, prime the epan_dissect_t with that
2899 epan_dissect_prime_with_dfilter(edt, cf->rfcode);
2902 epan_dissect_prime_with_dfilter(edt, cf->dfcode);
2904 /* This is the first pass, so prime the epan_dissect_t with the
2905 hfids postdissectors want on the first pass. */
2906 prime_epan_dissect_with_postdissector_wanted_hfids(edt);
2908 frame_data_set_before_dissect(&fdlocal, &cf->elapsed_time,
2909 &cf->provider.ref, cf->provider.prev_dis);
2910 if (cf->provider.ref == &fdlocal) {
2911 ref_frame = fdlocal;
2912 cf->provider.ref = &ref_frame;
2915 epan_dissect_run(edt, cf->cd_t, rec,
2916 frame_tvbuff_new(&cf->provider, &fdlocal, pd),
2919 /* Run the read filter if we have one. */
2921 passed = dfilter_apply_edt(cf->rfcode, edt);
2925 frame_data_set_after_dissect(&fdlocal, &cum_bytes);
2926 cf->provider.prev_cap = cf->provider.prev_dis = frame_data_sequence_add(cf->provider.frames, &fdlocal);
2928 /* If we're not doing dissection then there won't be any dependent frames.
2929 * More importantly, edt.pi.dependent_frames won't be initialized because
2930 * epan hasn't been initialized.
2931 * if we *are* doing dissection, then mark the dependent frames, but only
2932 * if a display filter was given and it matches this packet.
2934 if (edt && cf->dfcode) {
2935 if (dfilter_apply_edt(cf->dfcode, edt)) {
2936 g_slist_foreach(edt->pi.dependent_frames, find_and_mark_frame_depended_upon, cf->provider.frames);
2942 /* if we don't add it to the frame_data_sequence, clean it up right now
2944 frame_data_destroy(&fdlocal);
2948 epan_dissect_reset(edt);
2954 process_packet_second_pass(capture_file *cf, epan_dissect_t *edt,
2955 frame_data *fdata, wtap_rec *rec,
2956 Buffer *buf, guint tap_flags)
2961 /* If we're not running a display filter and we're not printing any
2962 packet information, we don't need to do a dissection. This means
2963 that all packets can be marked as 'passed'. */
2966 /* If we're going to print packet information, or we're going to
2967 run a read filter, or we're going to process taps, set up to
2968 do a dissection and do so. (This is the second pass of two
2969 passes over the packets; that's the pass where we print
2970 packet information or run taps.) */
2972 if (gbl_resolv_flags.mac_name || gbl_resolv_flags.network_name ||
2973 gbl_resolv_flags.transport_name)
2974 /* Grab any resolved addresses */
2975 host_name_lookup_process();
2977 /* If we're running a display filter, prime the epan_dissect_t with that
2980 epan_dissect_prime_with_dfilter(edt, cf->dfcode);
2982 col_custom_prime_edt(edt, &cf->cinfo);
2984 /* We only need the columns if either
2985 1) some tap needs the columns
2987 2) we're printing packet info but we're *not* verbose; in verbose
2988 mode, we print the protocol tree, not the protocol summary.
2990 if ((tap_flags & TL_REQUIRES_COLUMNS) || (print_packet_info && print_summary) || output_fields_has_cols(output_fields))
2995 frame_data_set_before_dissect(fdata, &cf->elapsed_time,
2996 &cf->provider.ref, cf->provider.prev_dis);
2997 if (cf->provider.ref == fdata) {
2999 cf->provider.ref = &ref_frame;
3002 if (dissect_color) {
3003 color_filters_prime_edt(edt);
3004 fdata->flags.need_colorize = 1;
3007 epan_dissect_run_with_taps(edt, cf->cd_t, rec,
3008 frame_tvbuff_new_buffer(&cf->provider, fdata, buf),
3011 /* Run the read/display filter if we have one. */
3013 passed = dfilter_apply_edt(cf->dfcode, edt);
3017 frame_data_set_after_dissect(fdata, &cum_bytes);
3018 /* Process this packet. */
3019 if (print_packet_info) {
3020 /* We're printing packet information; print the information for
3022 print_packet(cf, edt);
3024 /* If we're doing "line-buffering", flush the standard output
3025 after every packet. See the comment above, for the "-l"
3026 option, for an explanation of why we do that. */
3030 if (ferror(stdout)) {
3031 show_print_file_io_error(errno);
3035 cf->provider.prev_dis = fdata;
3037 cf->provider.prev_cap = fdata;
3040 epan_dissect_reset(edt);
3042 return passed || fdata->flags.dependent_of_displayed;
3046 process_cap_file(capture_file *cf, char *save_file, int out_file_type,
3047 gboolean out_file_name_res, int max_packet_count, gint64 max_byte_count)
3049 gboolean success = TRUE;
3051 int snapshot_length;
3054 int err = 0, err_pass1 = 0;
3055 gchar *err_info = NULL, *err_info_pass1 = NULL;
3057 gboolean filtering_tap_listeners;
3059 GArray *shb_hdrs = NULL;
3060 wtapng_iface_descriptions_t *idb_inf = NULL;
3061 GArray *nrb_hdrs = NULL;
3064 epan_dissect_t *edt = NULL;
3065 char *shb_user_appl;
3067 wtap_rec_init(&rec);
3069 idb_inf = wtap_file_get_idb_info(cf->provider.wth);
3070 #ifdef PCAP_NG_DEFAULT
3071 if (idb_inf->interface_data->len > 1) {
3072 linktype = WTAP_ENCAP_PER_PACKET;
3074 linktype = wtap_file_encap(cf->provider.wth);
3077 linktype = wtap_file_encap(cf->provider.wth);
3079 if (save_file != NULL) {
3080 /* Set up to write to the capture file. */
3081 snapshot_length = wtap_snapshot_length(cf->provider.wth);
3082 if (snapshot_length == 0) {
3083 /* Snapshot length of input file not known. */
3084 snapshot_length = WTAP_MAX_PACKET_SIZE_STANDARD;
3086 tshark_debug("tshark: snapshot_length = %d", snapshot_length);
3088 shb_hdrs = wtap_file_get_shb_for_new_file(cf->provider.wth);
3089 nrb_hdrs = wtap_file_get_nrb_for_new_file(cf->provider.wth);
3091 /* If we don't have an application name add Tshark */
3092 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) {
3093 /* this is free'd by wtap_block_free() later */
3094 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());
3097 if (linktype != WTAP_ENCAP_PER_PACKET &&
3098 out_file_type == WTAP_FILE_TYPE_SUBTYPE_PCAP) {
3099 tshark_debug("tshark: writing PCAP format to %s", save_file);
3100 if (strcmp(save_file, "-") == 0) {
3101 /* Write to the standard output. */
3102 pdh = wtap_dump_open_stdout(out_file_type, linktype,
3103 snapshot_length, FALSE /* compressed */, &err);
3105 pdh = wtap_dump_open(save_file, out_file_type, linktype,
3106 snapshot_length, FALSE /* compressed */, &err);
3110 tshark_debug("tshark: writing format type %d, to %s", out_file_type, save_file);
3111 if (strcmp(save_file, "-") == 0) {
3112 /* Write to the standard output. */
3113 pdh = wtap_dump_open_stdout_ng(out_file_type, linktype,
3114 snapshot_length, FALSE /* compressed */, shb_hdrs, idb_inf, nrb_hdrs, &err);
3116 pdh = wtap_dump_open_ng(save_file, out_file_type, linktype,
3117 snapshot_length, FALSE /* compressed */, shb_hdrs, idb_inf, nrb_hdrs, &err);
3125 /* We couldn't set up to write to the capture file. */
3126 cfile_dump_open_failure_message("TShark", save_file, err, out_file_type);
3131 /* Set up to print packet information. */
3132 if (print_packet_info) {
3133 if (!write_preamble(cf)) {
3134 show_print_file_io_error(errno);
3144 /* Do we have any tap listeners with filters? */
3145 filtering_tap_listeners = have_filtering_tap_listeners();
3147 /* Get the union of the flags for all tap listeners. */
3148 tap_flags = union_of_tap_listener_flags();
3150 if (perform_two_pass_analysis) {
3153 tshark_debug("tshark: perform_two_pass_analysis, do_dissection=%s", do_dissection ? "TRUE" : "FALSE");
3155 /* Allocate a frame_data_sequence for all the frames. */
3156 cf->provider.frames = new_frame_data_sequence();
3158 if (do_dissection) {
3159 gboolean create_proto_tree;
3162 * Determine whether we need to create a protocol tree.
3165 * we're going to apply a read filter;
3167 * we're going to apply a display filter;
3169 * a postdissector wants field values or protocols
3170 * on the first pass.
3173 (cf->rfcode != NULL || cf->dfcode != NULL || postdissectors_want_hfids() || dissect_color);
3175 tshark_debug("tshark: create_proto_tree = %s", create_proto_tree ? "TRUE" : "FALSE");
3177 /* We're not going to display the protocol tree on this pass,
3178 so it's not going to be "visible". */
3179 edt = epan_dissect_new(cf->epan, create_proto_tree, FALSE);
3182 tshark_debug("tshark: reading records for first pass");
3183 while (wtap_read(cf->provider.wth, &err, &err_info, &data_offset)) {
3184 if (process_packet_first_pass(cf, edt, data_offset, wtap_get_rec(cf->provider.wth),
3185 wtap_get_buf_ptr(cf->provider.wth))) {
3186 /* Stop reading if we have the maximum number of packets;
3187 * When the -c option has not been used, max_packet_count
3188 * starts at 0, which practically means, never stop reading.
3189 * (unless we roll over max_packet_count ?)
3191 if ( (--max_packet_count == 0) || (max_byte_count != 0 && data_offset >= max_byte_count)) {
3192 tshark_debug("tshark: max_packet_count (%d) or max_byte_count (%" G_GINT64_MODIFIER "d/%" G_GINT64_MODIFIER "d) reached",
3193 max_packet_count, data_offset, max_byte_count);
3194 err = 0; /* This is not an error */
3201 * If we got a read error on the first pass, remember the error, so
3202 * but do the second pass, so we can at least process the packets we
3203 * read, and then report the first-pass error after the second pass
3204 * (and before we report any second-pass errors), so all the the
3205 * errors show up at the end.
3209 err_info_pass1 = err_info;
3215 epan_dissect_free(edt);
3219 /* Close the sequential I/O side, to free up memory it requires. */
3220 wtap_sequential_close(cf->provider.wth);
3222 /* Allow the protocol dissectors to free up memory that they
3223 * don't need after the sequential run-through of the packets. */
3224 postseq_cleanup_all_protocols();
3226 cf->provider.prev_dis = NULL;
3227 cf->provider.prev_cap = NULL;
3228 ws_buffer_init(&buf, 1500);
3230 tshark_debug("tshark: done with first pass");
3232 if (do_dissection) {
3233 gboolean create_proto_tree;
3236 * Determine whether we need to create a protocol tree.
3239 * we're going to apply a display filter;
3241 * we're going to print the protocol tree;
3243 * one of the tap listeners requires a protocol tree;
3245 * we have custom columns (which require field values, which
3246 * currently requires that we build a protocol tree).
3249 (cf->dfcode || print_details || filtering_tap_listeners ||
3250 (tap_flags & TL_REQUIRES_PROTO_TREE) || have_custom_cols(&cf->cinfo) || dissect_color);
3252 tshark_debug("tshark: create_proto_tree = %s", create_proto_tree ? "TRUE" : "FALSE");
3254 /* The protocol tree will be "visible", i.e., printed, only if we're
3255 printing packet details, which is true if we're printing stuff
3256 ("print_packet_info" is true) and we're in verbose mode
3257 ("packet_details" is true). */
3258 edt = epan_dissect_new(cf->epan, create_proto_tree, print_packet_info && print_details);
3261 for (framenum = 1; err == 0 && framenum <= cf->count; framenum++) {
3262 fdata = frame_data_sequence_find(cf->provider.frames, framenum);
3263 if (wtap_seek_read(cf->provider.wth, fdata->file_off, &rec, &buf, &err,
3265 tshark_debug("tshark: invoking process_packet_second_pass() for frame #%d", framenum);
3266 if (process_packet_second_pass(cf, edt, fdata, &rec, &buf,
3268 /* Either there's no read filtering or this packet passed the
3269 filter, so, if we're writing to a capture file, write
3272 tshark_debug("tshark: writing packet #%d to outfile", framenum);
3273 if (!wtap_dump(pdh, &rec, ws_buffer_start_ptr(&buf), &err, &err_info)) {
3274 /* Error writing to a capture file */
3275 tshark_debug("tshark: error writing to a capture file (%d)", err);
3277 /* Report the error.
3278 XXX - framenum is not necessarily the frame number in
3279 the input file if there was a read filter. */
3280 cfile_write_failure_message("TShark", cf->filename, save_file,
3281 err, err_info, framenum,
3283 wtap_dump_close(pdh, &err);
3284 wtap_block_array_free(shb_hdrs);
3285 wtap_block_array_free(nrb_hdrs);
3294 epan_dissect_free(edt);
3298 ws_buffer_free(&buf);
3300 tshark_debug("tshark: done with second pass");
3303 /* !perform_two_pass_analysis */
3305 gboolean create_proto_tree = FALSE;
3306 tshark_debug("tshark: perform one pass analysis, do_dissection=%s", do_dissection ? "TRUE" : "FALSE");
3308 if (do_dissection) {
3310 * Determine whether we need to create a protocol tree.
3313 * we're going to apply a read filter;
3315 * we're going to apply a display filter;
3317 * we're going to print the protocol tree;
3319 * one of the tap listeners is going to apply a filter;
3321 * one of the tap listeners requires a protocol tree;
3323 * a postdissector wants field values or protocols
3324 * on the first pass;
3326 * we have custom columns (which require field values, which
3327 * currently requires that we build a protocol tree).
3330 (cf->rfcode || cf->dfcode || print_details || filtering_tap_listeners ||
3331 (tap_flags & TL_REQUIRES_PROTO_TREE) || postdissectors_want_hfids() ||
3332 have_custom_cols(&cf->cinfo) || dissect_color);
3334 tshark_debug("tshark: create_proto_tree = %s", create_proto_tree ? "TRUE" : "FALSE");
3336 /* The protocol tree will be "visible", i.e., printed, only if we're
3337 printing packet details, which is true if we're printing stuff
3338 ("print_packet_info" is true) and we're in verbose mode
3339 ("packet_details" is true). */
3340 edt = epan_dissect_new(cf->epan, create_proto_tree, print_packet_info && print_details);
3343 while (wtap_read(cf->provider.wth, &err, &err_info, &data_offset)) {
3346 tshark_debug("tshark: processing packet #%d", framenum);
3348 reset_epan_mem(cf, edt, create_proto_tree, print_packet_info && print_details);
3350 if (process_packet_single_pass(cf, edt, data_offset, wtap_get_rec(cf->provider.wth),
3351 wtap_get_buf_ptr(cf->provider.wth), tap_flags)) {
3352 /* Either there's no read filtering or this packet passed the
3353 filter, so, if we're writing to a capture file, write
3356 tshark_debug("tshark: writing packet #%d to outfile", framenum);
3357 if (!wtap_dump(pdh, wtap_get_rec(cf->provider.wth), wtap_get_buf_ptr(cf->provider.wth), &err, &err_info)) {
3358 /* Error writing to a capture file */
3359 tshark_debug("tshark: error writing to a capture file (%d)", err);
3360 cfile_write_failure_message("TShark", cf->filename, save_file,
3361 err, err_info, framenum, out_file_type);
3362 wtap_dump_close(pdh, &err);
3363 wtap_block_array_free(shb_hdrs);
3364 wtap_block_array_free(nrb_hdrs);
3369 /* Stop reading if we have the maximum number of packets;
3370 * When the -c option has not been used, max_packet_count
3371 * starts at 0, which practically means, never stop reading.
3372 * (unless we roll over max_packet_count ?)
3374 if ( (--max_packet_count == 0) || (max_byte_count != 0 && data_offset >= max_byte_count)) {
3375 tshark_debug("tshark: max_packet_count (%d) or max_byte_count (%" G_GINT64_MODIFIER "d/%" G_GINT64_MODIFIER "d) reached",
3376 max_packet_count, data_offset, max_byte_count);
3377 err = 0; /* This is not an error */
3383 epan_dissect_free(edt);
3388 wtap_rec_cleanup(&rec);
3390 if (err != 0 || err_pass1 != 0) {
3391 tshark_debug("tshark: something failed along the line (%d)", err);
3393 * Print a message noting that the read failed somewhere along the line.
3395 * If we're printing packet data, and the standard output and error are
3396 * going to the same place, flush the standard output, so everything
3397 * buffered up is written, and then print a newline to the standard error
3398 * before printing the error message, to separate it from the packet
3399 * data. (Alas, that only works on UN*X; st_dev is meaningless, and
3400 * the _fstat() documentation at Microsoft doesn't indicate whether
3401 * st_ino is even supported.)
3404 if (print_packet_info) {
3405 ws_statb64 stat_stdout, stat_stderr;
3407 if (ws_fstat64(1, &stat_stdout) == 0 && ws_fstat64(2, &stat_stderr) == 0) {
3408 if (stat_stdout.st_dev == stat_stderr.st_dev &&
3409 stat_stdout.st_ino == stat_stderr.st_ino) {
3411 fprintf(stderr, "\n");
3416 if (err_pass1 != 0) {
3417 /* Error on pass 1 of two-pass processing. */
3418 cfile_read_failure_message("TShark", cf->filename, err_pass1,
3422 /* Error on pass 2 of two-pass processing or on the only pass of
3423 one-pass processing. */
3424 cfile_read_failure_message("TShark", cf->filename, err, err_info);
3428 if (save_file != NULL) {
3429 if (pdh && out_file_name_res) {
3430 if (!wtap_dump_set_addrinfo_list(pdh, get_addrinfo_list())) {
3431 cmdarg_err("The file format \"%s\" doesn't support name resolution information.",
3432 wtap_file_type_subtype_short_string(out_file_type));
3435 /* Now close the capture file. */
3436 if (!wtap_dump_close(pdh, &err)) {
3437 cfile_close_failure_message(save_file, err);
3441 if (print_packet_info) {
3442 if (!write_finale()) {
3443 show_print_file_io_error(errno);
3450 wtap_close(cf->provider.wth);
3451 cf->provider.wth = NULL;
3453 wtap_block_array_free(shb_hdrs);
3454 wtap_block_array_free(nrb_hdrs);
3460 process_packet_single_pass(capture_file *cf, epan_dissect_t *edt, gint64 offset,
3461 wtap_rec *rec, const guchar *pd,
3468 /* Count this packet. */
3471 /* If we're not running a display filter and we're not printing any
3472 packet information, we don't need to do a dissection. This means
3473 that all packets can be marked as 'passed'. */
3476 frame_data_init(&fdata, cf->count, rec, offset, cum_bytes);
3478 /* If we're going to print packet information, or we're going to
3479 run a read filter, or we're going to process taps, set up to
3480 do a dissection and do so. (This is the one and only pass
3481 over the packets, so, if we'll be printing packet information
3482 or running taps, we'll be doing it here.) */
3484 if (print_packet_info && (gbl_resolv_flags.mac_name || gbl_resolv_flags.network_name ||
3485 gbl_resolv_flags.transport_name))
3486 /* Grab any resolved addresses */
3487 host_name_lookup_process();
3489 /* If we're running a filter, prime the epan_dissect_t with that
3492 epan_dissect_prime_with_dfilter(edt, cf->dfcode);
3494 /* This is the first and only pass, so prime the epan_dissect_t
3495 with the hfids postdissectors want on the first pass. */
3496 prime_epan_dissect_with_postdissector_wanted_hfids(edt);
3498 col_custom_prime_edt(edt, &cf->cinfo);
3500 /* We only need the columns if either
3501 1) some tap needs the columns
3503 2) we're printing packet info but we're *not* verbose; in verbose
3504 mode, we print the protocol tree, not the protocol summary.
3506 3) there is a column mapped as an individual field */
3507 if ((tap_flags & TL_REQUIRES_COLUMNS) || (print_packet_info && print_summary) || output_fields_has_cols(output_fields))
3512 frame_data_set_before_dissect(&fdata, &cf->elapsed_time,
3513 &cf->provider.ref, cf->provider.prev_dis);
3514 if (cf->provider.ref == &fdata) {
3516 cf->provider.ref = &ref_frame;
3519 if (dissect_color) {
3520 color_filters_prime_edt(edt);
3521 fdata.flags.need_colorize = 1;
3524 epan_dissect_run_with_taps(edt, cf->cd_t, rec,
3525 frame_tvbuff_new(&cf->provider, &fdata, pd),
3528 /* Run the filter if we have it. */
3530 passed = dfilter_apply_edt(cf->dfcode, edt);
3534 frame_data_set_after_dissect(&fdata, &cum_bytes);
3536 /* Process this packet. */
3537 if (print_packet_info) {
3538 /* We're printing packet information; print the information for
3541 print_packet(cf, edt);
3543 /* If we're doing "line-buffering", flush the standard output
3544 after every packet. See the comment above, for the "-l"
3545 option, for an explanation of why we do that. */
3549 if (ferror(stdout)) {
3550 show_print_file_io_error(errno);
3555 /* this must be set after print_packet() [bug #8160] */
3556 prev_dis_frame = fdata;
3557 cf->provider.prev_dis = &prev_dis_frame;
3560 prev_cap_frame = fdata;
3561 cf->provider.prev_cap = &prev_cap_frame;
3564 epan_dissect_reset(edt);
3565 frame_data_destroy(&fdata);
3571 write_preamble(capture_file *cf)
3573 switch (output_action) {
3576 return print_preamble(print_stream, cf->filename, get_ws_vcs_version_info());
3580 write_pdml_preamble(stdout, cf->filename);
3582 write_psml_preamble(&cf->cinfo, stdout);
3583 return !ferror(stdout);
3586 write_fields_preamble(output_fields, stdout);
3587 return !ferror(stdout);
3590 case WRITE_JSON_RAW:
3591 write_json_preamble(stdout);
3592 return !ferror(stdout);
3595 return !ferror(stdout);
3598 g_assert_not_reached();
3604 get_line_buf(size_t len)
3606 static char *line_bufp = NULL;
3607 static size_t line_buf_len = 256;
3608 size_t new_line_buf_len;
3610 for (new_line_buf_len = line_buf_len; len > new_line_buf_len;
3611 new_line_buf_len *= 2)
3613 if (line_bufp == NULL) {
3614 line_buf_len = new_line_buf_len;
3615 line_bufp = (char *)g_malloc(line_buf_len + 1);
3617 if (new_line_buf_len > line_buf_len) {
3618 line_buf_len = new_line_buf_len;
3619 line_bufp = (char *)g_realloc(line_bufp, line_buf_len + 1);
3626 put_string(char *dest, const char *str, size_t str_len)
3628 memcpy(dest, str, str_len);
3629 dest[str_len] = '\0';
3633 put_spaces_string(char *dest, const char *str, size_t str_len, size_t str_with_spaces)
3637 for (i = str_len; i < str_with_spaces; i++)
3640 put_string(dest, str, str_len);
3644 put_string_spaces(char *dest, const char *str, size_t str_len, size_t str_with_spaces)
3648 memcpy(dest, str, str_len);
3649 for (i = str_len; i < str_with_spaces; i++)
3652 dest[str_with_spaces] = '\0';
3656 print_columns(capture_file *cf, const epan_dissect_t *edt)
3663 col_item_t* col_item;
3664 gchar str_format[11];
3665 const color_filter_t *color_filter = NULL;
3667 line_bufp = get_line_buf(256);
3672 color_filter = edt->pi.fd->color_filter;
3674 for (i = 0; i < cf->cinfo.num_cols; i++) {
3675 col_item = &cf->cinfo.columns[i];
3676 /* Skip columns not marked as visible. */
3677 if (!get_column_visible(i))
3679 switch (col_item->col_fmt) {
3681 column_len = col_len = strlen(col_item->col_data);
3684 line_bufp = get_line_buf(buf_offset + column_len);
3685 put_spaces_string(line_bufp + buf_offset, col_item->col_data, col_len, column_len);
3691 case COL_ABS_YMD_TIME: /* XXX - wider */
3692 case COL_ABS_YDOY_TIME: /* XXX - wider */
3694 case COL_UTC_YMD_TIME: /* XXX - wider */
3695 case COL_UTC_YDOY_TIME: /* XXX - wider */
3696 column_len = col_len = strlen(col_item->col_data);
3697 if (column_len < 10)
3699 line_bufp = get_line_buf(buf_offset + column_len);
3700 put_spaces_string(line_bufp + buf_offset, col_item->col_data, col_len, column_len);
3706 case COL_DEF_DL_SRC:
3707 case COL_RES_DL_SRC:
3708 case COL_UNRES_DL_SRC:
3709 case COL_DEF_NET_SRC:
3710 case COL_RES_NET_SRC:
3711 case COL_UNRES_NET_SRC:
3712 column_len = col_len = strlen(col_item->col_data);
3713 if (column_len < 12)
3715 line_bufp = get_line_buf(buf_offset + column_len);
3716 put_spaces_string(line_bufp + buf_offset, col_item->col_data, col_len, column_len);
3722 case COL_DEF_DL_DST:
3723 case COL_RES_DL_DST:
3724 case COL_UNRES_DL_DST:
3725 case COL_DEF_NET_DST:
3726 case COL_RES_NET_DST:
3727 case COL_UNRES_NET_DST:
3728 column_len = col_len = strlen(col_item->col_data);
3729 if (column_len < 12)
3731 line_bufp = get_line_buf(buf_offset + column_len);
3732 put_string_spaces(line_bufp + buf_offset, col_item->col_data, col_len, column_len);
3736 column_len = strlen(col_item->col_data);
3737 line_bufp = get_line_buf(buf_offset + column_len);
3738 put_string(line_bufp + buf_offset, col_item->col_data, column_len);
3741 buf_offset += column_len;
3742 if (i != cf->cinfo.num_cols - 1) {
3744 * This isn't the last column, so we need to print a
3745 * separator between this column and the next.
3747 * If we printed a network source and are printing a
3748 * network destination of the same type next, separate
3749 * them with a UTF-8 right arrow; if we printed a network
3750 * destination and are printing a network source of the same
3751 * type next, separate them with a UTF-8 left arrow;
3752 * otherwise separate them with a space.
3754 * We add enough space to the buffer for " \xe2\x86\x90 "
3755 * or " \xe2\x86\x92 ", even if we're only adding " ".
3757 line_bufp = get_line_buf(buf_offset + 5);
3758 switch (col_item->col_fmt) {
3763 switch (cf->cinfo.columns[i+1].col_fmt) {
3768 g_snprintf(str_format, sizeof(str_format), "%s%s%s", delimiter_char, UTF8_RIGHTWARDS_ARROW, delimiter_char);
3769 put_string(line_bufp + buf_offset, str_format, 5);
3774 put_string(line_bufp + buf_offset, delimiter_char, 1);
3780 case COL_DEF_DL_SRC:
3781 case COL_RES_DL_SRC:
3782 case COL_UNRES_DL_SRC:
3783 switch (cf->cinfo.columns[i+1].col_fmt) {
3785 case COL_DEF_DL_DST:
3786 case COL_RES_DL_DST:
3787 case COL_UNRES_DL_DST:
3788 g_snprintf(str_format, sizeof(str_format), "%s%s%s", delimiter_char, UTF8_RIGHTWARDS_ARROW, delimiter_char);
3789 put_string(line_bufp + buf_offset, str_format, 5);
3794 put_string(line_bufp + buf_offset, delimiter_char, 1);
3800 case COL_DEF_NET_SRC:
3801 case COL_RES_NET_SRC:
3802 case COL_UNRES_NET_SRC:
3803 switch (cf->cinfo.columns[i+1].col_fmt) {
3805 case COL_DEF_NET_DST:
3806 case COL_RES_NET_DST:
3807 case COL_UNRES_NET_DST:
3808 g_snprintf(str_format, sizeof(str_format), "%s%s%s", delimiter_char, UTF8_RIGHTWARDS_ARROW, delimiter_char);
3809 put_string(line_bufp + buf_offset, str_format, 5);
3814 put_string(line_bufp + buf_offset, delimiter_char, 1);
3823 switch (cf->cinfo.columns[i+1].col_fmt) {
3828 g_snprintf(str_format, sizeof(str_format), "%s%s%s", delimiter_char, UTF8_LEFTWARDS_ARROW, delimiter_char);
3829 put_string(line_bufp + buf_offset, str_format, 5);
3834 put_string(line_bufp + buf_offset, delimiter_char, 1);
3840 case COL_DEF_DL_DST:
3841 case COL_RES_DL_DST:
3842 case COL_UNRES_DL_DST:
3843 switch (cf->cinfo.columns[i+1].col_fmt) {
3845 case COL_DEF_DL_SRC:
3846 case COL_RES_DL_SRC:
3847 case COL_UNRES_DL_SRC:
3848 g_snprintf(str_format, sizeof(str_format), "%s%s%s", delimiter_char, UTF8_LEFTWARDS_ARROW, delimiter_char);
3849 put_string(line_bufp + buf_offset, str_format, 5);
3854 put_string(line_bufp + buf_offset, delimiter_char, 1);
3860 case COL_DEF_NET_DST:
3861 case COL_RES_NET_DST:
3862 case COL_UNRES_NET_DST:
3863 switch (cf->cinfo.columns[i+1].col_fmt) {
3865 case COL_DEF_NET_SRC:
3866 case COL_RES_NET_SRC:
3867 case COL_UNRES_NET_SRC:
3868 g_snprintf(str_format, sizeof(str_format), "%s%s%s", delimiter_char, UTF8_LEFTWARDS_ARROW, delimiter_char);
3869 put_string(line_bufp + buf_offset, str_format, 5);
3874 put_string(line_bufp + buf_offset, delimiter_char, 1);
3881 put_string(line_bufp + buf_offset, delimiter_char, 1);
3888 if (dissect_color && color_filter != NULL)
3889 return print_line_color(print_stream, 0, line_bufp, &color_filter->fg_color, &color_filter->bg_color);
3891 return print_line(print_stream, 0, line_bufp);
3895 print_packet(capture_file *cf, epan_dissect_t *edt)
3897 if (print_summary || output_fields_has_cols(output_fields))
3898 /* Just fill in the columns. */
3899 epan_dissect_fill_in_columns(edt, FALSE, TRUE);
3901 /* Print summary columns and/or protocol tree */
3902 switch (output_action) {
3905 if (print_summary && !print_columns(cf, edt))
3907 if (print_details) {
3908 if (!proto_tree_print(print_details ? print_dissections_expanded : print_dissections_none,
3909 print_hex, edt, output_only_tables, print_stream))
3912 if (!print_line(print_stream, 0, separator))
3919 if (print_summary) {
3920 write_psml_columns(edt, stdout, dissect_color);
3921 return !ferror(stdout);
3923 if (print_details) {
3924 write_pdml_proto_tree(output_fields, protocolfilter, protocolfilter_flags, edt, &cf->cinfo, stdout, dissect_color);
3926 return !ferror(stdout);
3931 if (print_summary) {
3932 /*No non-verbose "fields" format */
3933 g_assert_not_reached();
3935 if (print_details) {
3936 write_fields_proto_tree(output_fields, edt, &cf->cinfo, stdout);
3938 return !ferror(stdout);
3944 g_assert_not_reached();
3945 if (print_details) {
3946 write_json_proto_tree(output_fields, print_dissections_expanded,
3947 print_hex, protocolfilter, protocolfilter_flags,
3948 edt, &cf->cinfo, node_children_grouper, stdout);
3949 return !ferror(stdout);
3953 case WRITE_JSON_RAW:
3955 g_assert_not_reached();
3956 if (print_details) {
3957 write_json_proto_tree(output_fields, print_dissections_none, TRUE,
3958 protocolfilter, protocolfilter_flags,
3959 edt, &cf->cinfo, node_children_grouper, stdout);
3960 return !ferror(stdout);
3965 write_ek_proto_tree(output_fields, print_summary, print_hex, protocolfilter,
3966 protocolfilter_flags, edt, &cf->cinfo, stdout);
3967 return !ferror(stdout);
3971 if (print_summary || print_details) {
3972 if (!print_line(print_stream, 0, ""))
3975 if (!print_hex_data(print_stream, edt))
3977 if (!print_line(print_stream, 0, separator))
3986 switch (output_action) {
3989 return print_finale(print_stream);
3993 write_pdml_finale(stdout);
3995 write_psml_finale(stdout);
3996 return !ferror(stdout);
3999 write_fields_finale(output_fields, stdout);
4000 return !ferror(stdout);
4003 case WRITE_JSON_RAW:
4004 write_json_finale(stdout);
4005 return !ferror(stdout);
4008 return !ferror(stdout);
4011 g_assert_not_reached();
4017 cf_close(capture_file *cf)
4019 g_free(cf->filename);
4023 cf_open(capture_file *cf, const char *fname, unsigned int type, gboolean is_tempfile, int *err)
4028 wth = wtap_open_offline(fname, type, err, &err_info, perform_two_pass_analysis);
4032 /* The open succeeded. Fill in the information for this file. */
4034 /* Create new epan session for dissection. */
4035 epan_free(cf->epan);
4036 cf->epan = tshark_epan_new(cf);
4038 cf->provider.wth = wth;
4039 cf->f_datalen = 0; /* not used, but set it anyway */
4041 /* Set the file name because we need it to set the follow stream filter.
4042 XXX - is that still true? We need it for other reasons, though,
4044 cf->filename = g_strdup(fname);
4046 /* Indicate whether it's a permanent or temporary file. */
4047 cf->is_tempfile = is_tempfile;
4049 /* No user changes yet. */
4050 cf->unsaved_changes = FALSE;
4052 cf->cd_t = wtap_file_type_subtype(cf->provider.wth);
4053 cf->open_type = type;
4055 cf->drops_known = FALSE;
4057 cf->snap = wtap_snapshot_length(cf->provider.wth);
4058 nstime_set_zero(&cf->elapsed_time);
4059 cf->provider.ref = NULL;
4060 cf->provider.prev_dis = NULL;
4061 cf->provider.prev_cap = NULL;
4063 cf->state = FILE_READ_IN_PROGRESS;
4065 wtap_set_cb_new_ipv4(cf->provider.wth, add_ipv4_name);
4066 wtap_set_cb_new_ipv6(cf->provider.wth, (wtap_new_ipv6_callback_t) add_ipv6_name);
4071 cfile_open_failure_message("TShark", fname, *err, err_info);
4076 show_print_file_io_error(int err)
4081 cmdarg_err("Not all the packets could be printed because there is "
4082 "no space left on the file system.");
4087 cmdarg_err("Not all the packets could be printed because you are "
4088 "too close to, or over your disk quota.");
4093 cmdarg_err("An error occurred while printing packets: %s.",
4100 * General errors and warnings are reported with an console message
4104 failure_warning_message(const char *msg_format, va_list ap)
4106 fprintf(stderr, "tshark: ");
4107 vfprintf(stderr, msg_format, ap);
4108 fprintf(stderr, "\n");
4112 * Open/create errors are reported with an console message in TShark.
4115 open_failure_message(const char *filename, int err, gboolean for_writing)
4117 fprintf(stderr, "tshark: ");
4118 fprintf(stderr, file_open_error_message(err, for_writing), filename);
4119 fprintf(stderr, "\n");
4123 * Read errors are reported with an console message in TShark.
4126 read_failure_message(const char *filename, int err)
4128 cmdarg_err("An error occurred while reading from the file \"%s\": %s.",
4129 filename, g_strerror(err));
4133 * Write errors are reported with an console message in TShark.
4136 write_failure_message(const char *filename, int err)
4138 cmdarg_err("An error occurred while writing to the file \"%s\": %s.",
4139 filename, g_strerror(err));
4142 static void reset_epan_mem(capture_file *cf,epan_dissect_t *edt, gboolean tree, gboolean visual)
4144 if (!epan_auto_reset || (cf->count < epan_auto_reset_count))
4147 fprintf(stderr, "resetting session.\n");
4149 epan_dissect_cleanup(edt);
4150 epan_free(cf->epan);
4152 cf->epan = tshark_epan_new(cf);
4153 epan_dissect_init(edt, cf->epan, tree, visual);
4158 * Report additional information for an error in command-line arguments.
4161 failure_message_cont(const char *msg_format, va_list ap)
4163 vfprintf(stderr, msg_format, ap);
4164 fprintf(stderr, "\n");
4168 * Editor modelines - https://www.wireshark.org/tools/modelines.html
4173 * indent-tabs-mode: nil
4176 * vi: set shiftwidth=2 tabstop=8 expandtab:
4177 * :indentSize=2:tabSize=8:noTabs=true:
git.samba.org / metze / wireshark / wip.git / blob