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();
633 resultArray = g_strsplit(path, G_SEARCHPATH_SEPARATOR_S, 10);
635 for(i = 0; resultArray[i]; i++)
636 printf("%-21s\t%s\n", "MIB/PIB path:", g_strstrip(resultArray[i]));
638 g_strfreev(resultArray);
645 must_do_dissection(dfilter_t *rfcode, dfilter_t *dfcode,
646 gchar *volatile pdu_export_arg)
648 /* We have to dissect each packet if:
650 we're printing information about each packet;
652 we're using a read filter on the packets;
654 we're using a display filter on the packets;
656 we're exporting PDUs;
658 we're using any taps that need dissection. */
659 return print_packet_info || rfcode || dfcode || pdu_export_arg ||
660 tap_listeners_require_dissection() || dissect_color;
664 main(int argc, char *argv[])
666 GString *comp_info_str;
667 GString *runtime_info_str;
668 char *init_progfile_dir_error;
670 static const struct option long_options[] = {
671 {"help", no_argument, NULL, 'h'},
672 {"version", no_argument, NULL, 'v'},
673 LONGOPT_CAPTURE_COMMON
674 LONGOPT_DISSECT_COMMON
675 {"print", no_argument, NULL, 'P'},
676 {"export-objects", required_argument, NULL, LONGOPT_EXPORT_OBJECTS},
677 {"color", no_argument, NULL, LONGOPT_COLOR},
678 {"no-duplicate-keys", no_argument, NULL, LONGOPT_NO_DUPLICATE_KEYS},
681 gboolean arg_error = FALSE;
689 volatile gboolean success;
690 volatile int exit_status = EXIT_SUCCESS;
692 int caps_queries = 0;
693 gboolean start_capture = FALSE;
697 gboolean capture_option_specified = FALSE;
699 gboolean quiet = FALSE;
700 #ifdef PCAP_NG_DEFAULT
701 volatile int out_file_type = WTAP_FILE_TYPE_SUBTYPE_PCAPNG;
703 volatile int out_file_type = WTAP_FILE_TYPE_SUBTYPE_PCAP;
705 volatile gboolean out_file_name_res = FALSE;
706 volatile int in_file_type = WTAP_TYPE_AUTO;
707 gchar *volatile cf_name = NULL;
708 gchar *rfilter = NULL;
709 gchar *dfilter = NULL;
710 #ifdef HAVE_PCAP_OPEN_DEAD
711 struct bpf_program fcode;
713 dfilter_t *rfcode = NULL;
714 dfilter_t *dfcode = NULL;
718 gchar *output_only = NULL;
719 gchar *volatile pdu_export_arg = NULL;
720 const char *volatile exp_pdu_filename = NULL;
721 exp_pdu_t exp_pdu_tap_data;
724 * The leading + ensures that getopt_long() does not permute the argv[]
727 * We have to make sure that the first getopt_long() preserves the content
728 * of argv[] for the subsequent getopt_long() call.
730 * We use getopt_long() in both cases to ensure that we're using a routine
731 * whose permutation behavior we can control in the same fashion on all
732 * platforms, and so that, if we ever need to process a long argument before
733 * doing further initialization, we can do so.
735 * Glibc and Solaris libc document that a leading + disables permutation
736 * of options, regardless of whether POSIXLY_CORRECT is set or not; *BSD
737 * and macOS don't document it, but do so anyway.
739 * We do *not* use a leading - because the behavior of a leading - is
740 * platform-dependent.
742 #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:"
744 static const char optstring[] = OPTSTRING;
746 tshark_debug("tshark started with %d args", argc);
748 /* Set the C-language locale to the native environment. */
749 setlocale(LC_ALL, "");
751 cmdarg_err_init(failure_warning_message, failure_message_cont);
754 arg_list_utf_16to8(argc, argv);
755 create_app_running_mutex();
756 #if !GLIB_CHECK_VERSION(2,31,0)
762 * Get credential information for later use, and drop privileges
763 * before doing anything else.
764 * Let the user know if anything happened.
766 init_process_policies();
767 relinquish_special_privs_perm();
768 print_current_user();
771 * Attempt to get the pathname of the directory containing the
774 init_progfile_dir_error = init_progfile_dir(argv[0], main);
775 if (init_progfile_dir_error != NULL) {
777 "tshark: Can't get pathname of directory containing the tshark program: %s.\n"
778 "It won't be possible to capture traffic.\n"
779 "Report this to the Wireshark developers.",
780 init_progfile_dir_error);
781 g_free(init_progfile_dir_error);
784 initialize_funnel_ops();
787 ws_init_dll_search_path();
789 /* Load wpcap if possible. Do this before collecting the run-time version information */
792 /* Warn the user if npf.sys isn't loaded. */
793 if (!npf_sys_is_running() && get_windows_major_version() >= 6) {
794 fprintf(stderr, "The NPF driver isn't running. You may have trouble "
795 "capturing or\nlisting interfaces.\n");
797 #endif /* HAVE_LIBPCAP */
800 /* Get the compile-time version information string */
801 comp_info_str = get_compiled_version_info(get_tshark_compiled_version_info,
802 epan_get_compiled_version_info);
804 /* Get the run-time version information string */
805 runtime_info_str = get_runtime_version_info(get_tshark_runtime_version_info);
807 /* Add it to the information to be reported on a crash. */
808 ws_add_crash_info("TShark (Wireshark) %s\n"
813 get_ws_vcs_version_info(), comp_info_str->str, runtime_info_str->str);
814 g_string_free(comp_info_str, TRUE);
815 g_string_free(runtime_info_str, TRUE);
817 /* Fail sometimes. Useful for testing fuzz scripts. */
818 /* if (g_random_int_range(0, 100) < 5) abort(); */
821 * In order to have the -X opts assigned before the wslua machine starts
822 * we need to call getopt_long before epan_init() gets called.
824 * In order to handle, for example, -o options, we also need to call it
825 * *after* epan_init() gets called, so that the dissectors have had a
826 * chance to register their preferences.
828 * XXX - can we do this all with one getopt_long() call, saving the
829 * arguments we can't handle until after initializing libwireshark,
830 * and then process them after initializing libwireshark?
834 while ((opt = getopt_long(argc, argv, optstring, long_options, NULL)) != -1) {
836 case 'C': /* Configuration Profile */
837 if (profile_exists (optarg, FALSE)) {
838 set_profile_name (optarg);
840 cmdarg_err("Configuration Profile \"%s\" does not exist", optarg);
841 exit_status = INVALID_OPTION;
845 case 'P': /* Print packet summary info even when writing to a file */
846 print_packet_info = TRUE;
847 print_summary = TRUE;
849 case 'O': /* Only output these protocols */
850 output_only = g_strdup(optarg);
852 case 'V': /* Verbose */
853 print_details = TRUE;
854 print_packet_info = TRUE;
856 case 'x': /* Print packet data in hex (and ASCII) */
858 /* The user asked for hex output, so let's ensure they get it,
859 * even if they're writing to a file.
861 print_packet_info = TRUE;
871 /** Send All g_log messages to our own handler **/
875 G_LOG_LEVEL_CRITICAL|
880 G_LOG_FLAG_FATAL|G_LOG_FLAG_RECURSION;
882 g_log_set_handler(NULL,
883 (GLogLevelFlags)log_flags,
884 tshark_log_handler, NULL /* user_data */);
885 g_log_set_handler(LOG_DOMAIN_MAIN,
886 (GLogLevelFlags)log_flags,
887 tshark_log_handler, NULL /* user_data */);
890 g_log_set_handler(LOG_DOMAIN_CAPTURE,
891 (GLogLevelFlags)log_flags,
892 tshark_log_handler, NULL /* user_data */);
893 g_log_set_handler(LOG_DOMAIN_CAPTURE_CHILD,
894 (GLogLevelFlags)log_flags,
895 tshark_log_handler, NULL /* user_data */);
898 init_report_message(failure_warning_message, failure_warning_message,
899 open_failure_message, read_failure_message,
900 write_failure_message);
903 capture_opts_init(&global_capture_opts);
904 capture_session_init(&global_capture_session, &cfile);
907 timestamp_set_type(TS_RELATIVE);
908 timestamp_set_precision(TS_PREC_AUTO);
909 timestamp_set_seconds_type(TS_SECONDS_DEFAULT);
913 /* Register all dissectors; we must do this before checking for the
914 "-G" flag, as the "-G" flag dumps information registered by the
915 dissectors, and we must do it before we read the preferences, in
916 case any dissectors register preferences. */
917 if (!epan_init(register_all_protocols, register_all_protocol_handoffs, NULL,
919 exit_status = INIT_FAILED;
923 /* Register all tap listeners; we do this before we parse the arguments,
924 as the "-z" argument can specify a registered tap. */
926 /* we register the plugin taps before the other taps because
927 stats_tree taps plugins will be registered as tap listeners
928 by stats_tree_stat.c and need to registered before that */
930 register_all_plugin_tap_listeners();
932 extcap_register_preferences();
933 /* Register all tap listeners. */
934 for (tap_reg_t *t = tap_reg_listener; t->cb_func != NULL; t++) {
937 conversation_table_set_gui_info(init_iousers);
938 hostlist_table_set_gui_info(init_hostlists);
939 srt_table_iterate_tables(register_srt_tables, NULL);
940 rtd_table_iterate_tables(register_rtd_tables, NULL);
941 stat_tap_iterate_tables(register_simple_stat_tables, NULL);
943 /* If invoked with the "-G" flag, we dump out information based on
944 the argument to the "-G" flag; if no argument is specified,
945 for backwards compatibility we dump out a glossary of display
948 XXX - we do this here, for now, to support "-G" with no arguments.
949 If none of our build or other processes uses "-G" with no arguments,
950 we can just process it with the other arguments. */
951 if (argc >= 2 && strcmp(argv[1], "-G") == 0) {
952 proto_initialize_all_prefixes();
955 proto_registrar_dump_fields();
957 if (strcmp(argv[2], "column-formats") == 0)
958 column_dump_column_formats();
959 else if (strcmp(argv[2], "currentprefs") == 0) {
960 epan_load_settings();
963 else if (strcmp(argv[2], "decodes") == 0)
964 dissector_dump_decodes();
965 else if (strcmp(argv[2], "defaultprefs") == 0)
967 else if (strcmp(argv[2], "dissector-tables") == 0)
968 dissector_dump_dissector_tables();
969 else if (strcmp(argv[2], "fieldcount") == 0) {
970 /* return value for the test suite */
971 exit_status = proto_registrar_dump_fieldcount();
973 } else if (strcmp(argv[2], "fields") == 0)
974 proto_registrar_dump_fields();
975 else if (strcmp(argv[2], "folders") == 0)
977 else if (strcmp(argv[2], "ftypes") == 0)
978 proto_registrar_dump_ftypes();
979 else if (strcmp(argv[2], "heuristic-decodes") == 0)
980 dissector_dump_heur_decodes();
981 else if (strcmp(argv[2], "plugins") == 0) {
986 wslua_plugins_dump_all();
989 else if (strcmp(argv[2], "protocols") == 0)
990 proto_registrar_dump_protocols();
991 else if (strcmp(argv[2], "values") == 0)
992 proto_registrar_dump_values();
993 else if (strcmp(argv[2], "help") == 0)
994 glossary_option_help();
995 /* These are supported only for backwards compatibility and may or may not work
996 * for a given user in a given directory on a given operating system with a given
997 * command-line interpreter.
999 else if (strcmp(argv[2], "?") == 0)
1000 glossary_option_help();
1001 else if (strcmp(argv[2], "-?") == 0)
1002 glossary_option_help();
1004 cmdarg_err("Invalid \"%s\" option for -G flag, enter -G help for more help.", argv[2]);
1005 exit_status = INVALID_OPTION;
1009 exit_status = EXIT_SUCCESS;
1013 tshark_debug("tshark reading settings");
1015 /* Load libwireshark settings from the current profile. */
1016 prefs_p = epan_load_settings();
1017 prefs_loaded = TRUE;
1019 read_filter_list(CFILTER_LIST);
1021 cap_file_init(&cfile);
1023 /* Print format defaults to this. */
1024 print_format = PR_FMT_TEXT;
1025 delimiter_char = " ";
1027 output_fields = output_fields_new();
1030 * To reset the options parser, set optreset to 1 on platforms that
1031 * have optreset (documented in *BSD and macOS, apparently present but
1032 * not documented in Solaris - the Illumos repository seems to
1033 * suggest that the first Solaris getopt_long(), at least as of 2004,
1034 * was based on the NetBSD one, it had optreset) and set optind to 1,
1035 * and set optind to 0 otherwise (documented as working in the GNU
1036 * getopt_long(). Setting optind to 0 didn't originally work in the
1037 * NetBSD one, but that was added later - we don't want to depend on
1038 * it if we have optreset).
1040 * Also reset opterr to 1, so that error messages are printed by
1043 #ifdef HAVE_OPTRESET
1051 /* Now get our args */
1052 while ((opt = getopt_long(argc, argv, optstring, long_options, NULL)) != -1) {
1054 case '2': /* Perform two pass analysis */
1055 if(epan_auto_reset){
1056 cmdarg_err("-2 does not support auto session reset.");
1059 perform_two_pass_analysis = TRUE;
1062 if(perform_two_pass_analysis){
1063 cmdarg_err("-M does not support two pass analysis.");
1066 epan_auto_reset_count = get_positive_int(optarg, "epan reset count");
1067 epan_auto_reset = TRUE;
1069 case 'a': /* autostop criteria */
1070 case 'b': /* Ringbuffer option */
1071 case 'c': /* Capture x packets */
1072 case 'f': /* capture filter */
1073 case 'g': /* enable group read access on file(s) */
1074 case 'i': /* Use interface x */
1075 case LONGOPT_SET_TSTAMP_TYPE: /* Set capture timestamp type */
1076 case 'p': /* Don't capture in promiscuous mode */
1077 #ifdef HAVE_PCAP_REMOTE
1078 case 'A': /* Authentication */
1080 #ifdef HAVE_PCAP_CREATE
1081 case 'I': /* Capture in monitor mode, if available */
1083 case 's': /* Set the snapshot (capture) length */
1084 case 'w': /* Write to capture file x */
1085 case 'y': /* Set the pcap data link type */
1086 case LONGOPT_NUM_CAP_COMMENT: /* add a capture comment */
1087 #ifdef CAN_SET_CAPTURE_BUFFER_SIZE
1088 case 'B': /* Buffer size */
1091 exit_status = capture_opts_add_opt(&global_capture_opts, opt, optarg, &start_capture);
1092 if (exit_status != 0) {
1098 * Output file name, if we're reading a file and writing to another
1101 output_file_name = optarg;
1103 capture_option_specified = TRUE;
1109 /* already processed; just ignore it now */
1111 case 'D': /* Print a list of capture devices and exit */
1113 if_list = capture_interface_list(&err, &err_str,NULL);
1114 if (if_list == NULL) {
1116 cmdarg_err("There are no interfaces on which a capture can be done");
1118 cmdarg_err("%s", err_str);
1121 exit_status = INVALID_INTERFACE;
1124 capture_opts_print_interfaces(if_list);
1125 free_interface_list(if_list);
1126 exit_status = EXIT_SUCCESS;
1129 capture_option_specified = TRUE;
1135 output_fields_add(output_fields, optarg);
1139 if (!output_fields_set_option(output_fields, optarg)) {
1140 cmdarg_err("\"%s\" is not a valid field output option=value pair.", optarg);
1141 output_fields_list_options(stderr);
1142 exit_status = INVALID_OPTION;
1147 out_file_type = wtap_short_string_to_file_type_subtype(optarg);
1148 if (out_file_type < 0) {
1149 cmdarg_err("\"%s\" isn't a valid capture file type", optarg);
1150 list_capture_types();
1151 exit_status = INVALID_OPTION;
1156 protocolfilter = wmem_strsplit(wmem_epan_scope(), optarg, " ", -1);
1159 protocolfilter_flags = PF_INCLUDE_CHILDREN;
1160 protocolfilter = wmem_strsplit(wmem_epan_scope(), optarg, " ", -1);
1162 case 'W': /* Select extra information to save in our capture file */
1163 /* This is patterned after the -N flag which may not be the best idea. */
1164 if (strchr(optarg, 'n')) {
1165 out_file_name_res = TRUE;
1167 cmdarg_err("Invalid -W argument \"%s\"; it must be one of:", optarg);
1168 cmdarg_err_cont("\t'n' write network address resolution information (pcapng only)");
1169 exit_status = INVALID_OPTION;
1173 case 'H': /* Read address to name mappings from a hosts file */
1174 if (! add_hosts_file(optarg))
1176 cmdarg_err("Can't read host entries from \"%s\"", optarg);
1177 exit_status = INVALID_OPTION;
1180 out_file_name_res = TRUE;
1183 case 'h': /* Print help and exit */
1184 printf("TShark (Wireshark) %s\n"
1185 "Dump and analyze network traffic.\n"
1186 "See https://www.wireshark.org for more information.\n",
1187 get_ws_vcs_version_info());
1188 print_usage(stdout);
1189 exit_status = EXIT_SUCCESS;
1192 case 'l': /* "Line-buffer" standard output */
1193 /* The ANSI C standard does not appear to *require* that a line-buffered
1194 stream be flushed to the host environment whenever a newline is
1195 written, it just says that, on such a stream, characters "are
1196 intended to be transmitted to or from the host environment as a
1197 block when a new-line character is encountered".
1199 The Visual C++ 6.0 C implementation doesn't do what is intended;
1200 even if you set a stream to be line-buffered, it still doesn't
1201 flush the buffer at the end of every line.
1203 The whole reason for the "-l" flag in either tcpdump or TShark
1204 is to allow the output of a live capture to be piped to a program
1205 or script and to have that script see the information for the
1206 packet as soon as it's printed, rather than having to wait until
1207 a standard I/O buffer fills up.
1209 So, if the "-l" flag is specified, we flush the standard output
1210 at the end of a packet. This will do the right thing if we're
1211 printing packet summary lines, and, as we print the entire protocol
1212 tree for a single packet without waiting for anything to happen,
1213 it should be as good as line-buffered mode if we're printing
1214 protocol trees - arguably even better, as it may do fewer
1216 line_buffered = TRUE;
1218 case 'L': /* Print list of link-layer types and exit */
1220 caps_queries |= CAPS_QUERY_LINK_TYPES;
1222 capture_option_specified = TRUE;
1226 case LONGOPT_LIST_TSTAMP_TYPES: /* List possible timestamp types */
1228 caps_queries |= CAPS_QUERY_TIMESTAMP_TYPES;
1230 capture_option_specified = TRUE;
1234 case 'o': /* Override preference from command line */
1236 char *errmsg = NULL;
1238 switch (prefs_set_pref(optarg, &errmsg)) {
1243 case PREFS_SET_SYNTAX_ERR:
1244 cmdarg_err("Invalid -o flag \"%s\"%s%s", optarg,
1245 errmsg ? ": " : "", errmsg ? errmsg : "");
1247 exit_status = INVALID_OPTION;
1251 case PREFS_SET_NO_SUCH_PREF:
1252 case PREFS_SET_OBSOLETE:
1253 cmdarg_err("-o flag \"%s\" specifies unknown preference", optarg);
1254 exit_status = INVALID_OPTION;
1260 case 'q': /* Quiet */
1263 case 'Q': /* Really quiet */
1265 really_quiet = TRUE;
1267 case 'r': /* Read capture file x */
1268 cf_name = g_strdup(optarg);
1270 case 'R': /* Read file filter */
1274 /* already processed; just ignore it now */
1276 case 'S': /* Set the line Separator to be printed between packets */
1279 case 'T': /* printing Type */
1280 print_packet_info = TRUE;
1281 if (strcmp(optarg, "text") == 0) {
1282 output_action = WRITE_TEXT;
1283 print_format = PR_FMT_TEXT;
1284 } else if (strcmp(optarg, "tabs") == 0) {
1285 output_action = WRITE_TEXT;
1286 print_format = PR_FMT_TEXT;
1287 delimiter_char = "\t";
1288 } else if (strcmp(optarg, "ps") == 0) {
1289 output_action = WRITE_TEXT;
1290 print_format = PR_FMT_PS;
1291 } else if (strcmp(optarg, "pdml") == 0) {
1292 output_action = WRITE_XML;
1293 print_details = TRUE; /* Need details */
1294 print_summary = FALSE; /* Don't allow summary */
1295 } else if (strcmp(optarg, "psml") == 0) {
1296 output_action = WRITE_XML;
1297 print_details = FALSE; /* Don't allow details */
1298 print_summary = TRUE; /* Need summary */
1299 } else if (strcmp(optarg, "fields") == 0) {
1300 output_action = WRITE_FIELDS;
1301 print_details = TRUE; /* Need full tree info */
1302 print_summary = FALSE; /* Don't allow summary */
1303 } else if (strcmp(optarg, "json") == 0) {
1304 output_action = WRITE_JSON;
1305 print_details = TRUE; /* Need details */
1306 print_summary = FALSE; /* Don't allow summary */
1307 } else if (strcmp(optarg, "ek") == 0) {
1308 output_action = WRITE_EK;
1310 print_details = TRUE;
1311 } else if (strcmp(optarg, "jsonraw") == 0) {
1312 output_action = WRITE_JSON_RAW;
1313 print_details = TRUE; /* Need details */
1314 print_summary = FALSE; /* Don't allow summary */
1317 cmdarg_err("Invalid -T parameter \"%s\"; it must be one of:", optarg); /* x */
1318 cmdarg_err_cont("\t\"fields\" The values of fields specified with the -e option, in a form\n"
1319 "\t specified by the -E option.\n"
1320 "\t\"pdml\" Packet Details Markup Language, an XML-based format for the\n"
1321 "\t details of a decoded packet. This information is equivalent to\n"
1322 "\t the packet details printed with the -V flag.\n"
1323 "\t\"ps\" PostScript for a human-readable one-line summary of each of\n"
1324 "\t the packets, or a multi-line view of the details of each of\n"
1325 "\t the packets, depending on whether the -V flag was specified.\n"
1326 "\t\"psml\" Packet Summary Markup Language, an XML-based format for the\n"
1327 "\t summary information of a decoded packet. This information is\n"
1328 "\t equivalent to the information shown in the one-line summary\n"
1329 "\t printed by default.\n"
1330 "\t\"json\" Packet Summary, an JSON-based format for the details\n"
1331 "\t summary information of a decoded packet. This information is \n"
1332 "\t equivalent to the packet details printed with the -V flag.\n"
1333 "\t\"jsonraw\" Packet Details, a JSON-based format for machine parsing\n"
1334 "\t including only raw hex decoded fields (same as -T json -x but\n"
1335 "\t without text decoding, only raw fields included). \n"
1336 "\t\"ek\" Packet Details, an EK JSON-based format for the bulk insert \n"
1337 "\t into elastic search cluster. This information is \n"
1338 "\t equivalent to the packet details printed with the -V flag.\n"
1339 "\t\"text\" Text of a human-readable one-line summary of each of the\n"
1340 "\t packets, or a multi-line view of the details of each of the\n"
1341 "\t packets, depending on whether the -V flag was specified.\n"
1342 "\t This is the default.\n"
1343 "\t\"tabs\" Similar to the text report except that each column of the\n"
1344 "\t human-readable one-line summary is delimited with an ASCII\n"
1345 "\t horizontal tab character.");
1346 exit_status = INVALID_OPTION;
1350 case 'U': /* Export PDUs to file */
1352 GSList *export_pdu_tap_name_list = NULL;
1355 cmdarg_err("A tap name is required. Valid names are:");
1356 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)) {
1357 cmdarg_err("%s\n", (const char*)(export_pdu_tap_name_list->data));
1359 exit_status = INVALID_OPTION;
1362 pdu_export_arg = g_strdup(optarg);
1365 case 'v': /* Show version and exit */
1366 comp_info_str = get_compiled_version_info(get_tshark_compiled_version_info,
1367 epan_get_compiled_version_info);
1368 runtime_info_str = get_runtime_version_info(get_tshark_runtime_version_info);
1369 show_version("TShark (Wireshark)", comp_info_str, runtime_info_str);
1370 g_string_free(comp_info_str, TRUE);
1371 g_string_free(runtime_info_str, TRUE);
1372 /* We don't really have to cleanup here, but it's a convenient way to test
1373 * start-up and shut-down of the epan library without any UI-specific
1374 * cruft getting in the way. Makes the results of running
1375 * $ ./tools/valgrind-wireshark -n
1376 * much more useful. */
1379 exit_status = EXIT_SUCCESS;
1381 case 'O': /* Only output these protocols */
1382 /* already processed; just ignore it now */
1384 case 'V': /* Verbose */
1385 /* already processed; just ignore it now */
1387 case 'x': /* Print packet data in hex (and ASCII) */
1388 /* already processed; just ignore it now */
1391 /* already processed; just ignore it now */
1397 /* We won't call the init function for the stat this soon
1398 as it would disallow MATE's fields (which are registered
1399 by the preferences set callback) from being used as
1400 part of a tap filter. Instead, we just add the argument
1401 to a list of stat arguments. */
1402 if (strcmp("help", optarg) == 0) {
1403 fprintf(stderr, "tshark: The available statistics for the \"-z\" option are:\n");
1404 list_stat_cmd_args();
1405 exit_status = EXIT_SUCCESS;
1408 if (!process_stat_cmd_arg(optarg)) {
1409 cmdarg_err("Invalid -z argument \"%s\"; it must be one of:", optarg);
1410 list_stat_cmd_args();
1411 exit_status = INVALID_OPTION;
1415 case 'd': /* Decode as rule */
1416 case 'K': /* Kerberos keytab file */
1417 case 'n': /* No name resolution */
1418 case 'N': /* Select what types of addresses/port #s to resolve */
1419 case 't': /* Time stamp type */
1420 case 'u': /* Seconds type */
1421 case LONGOPT_DISABLE_PROTOCOL: /* disable dissection of protocol */
1422 case LONGOPT_ENABLE_HEURISTIC: /* enable heuristic dissection of protocol */
1423 case LONGOPT_DISABLE_HEURISTIC: /* disable heuristic dissection of protocol */
1424 case LONGOPT_ENABLE_PROTOCOL: /* enable dissection of protocol (that is disabled by default) */
1425 if (!dissect_opts_handle_opt(opt, optarg)) {
1426 exit_status = INVALID_OPTION;
1430 case LONGOPT_EXPORT_OBJECTS: /* --export-objects */
1431 if (strcmp("help", optarg) == 0) {
1432 fprintf(stderr, "tshark: The available export object types for the \"--export-objects\" option are:\n");
1433 eo_list_object_types();
1434 exit_status = EXIT_SUCCESS;
1437 if (!eo_tap_opt_add(optarg)) {
1438 exit_status = INVALID_OPTION;
1442 case LONGOPT_COLOR: /* print in color where appropriate */
1443 dissect_color = TRUE;
1445 case LONGOPT_NO_DUPLICATE_KEYS:
1446 no_duplicate_keys = TRUE;
1447 node_children_grouper = proto_node_group_children_by_json_key;
1450 case '?': /* Bad flag - print usage message */
1453 list_capture_types();
1456 print_usage(stderr);
1458 exit_status = INVALID_OPTION;
1465 * Print packet summary information is the default if neither -V or -x
1466 * were specified. Note that this is new behavior, which allows for the
1467 * possibility of printing only hex/ascii output without necessarily
1468 * requiring that either the summary or details be printed too.
1470 if (!print_summary && !print_details && !print_hex)
1471 print_summary = TRUE;
1473 if (no_duplicate_keys && output_action != WRITE_JSON && output_action != WRITE_JSON_RAW) {
1474 cmdarg_err("--no-duplicate-keys can only be used with \"-T json\" and \"-T jsonraw\"");
1475 exit_status = INVALID_OPTION;
1479 /* If we specified output fields, but not the output field type... */
1480 if ((WRITE_FIELDS != output_action && WRITE_XML != output_action && WRITE_JSON != output_action && WRITE_EK != output_action) && 0 != output_fields_num_fields(output_fields)) {
1481 cmdarg_err("Output fields were specified with \"-e\", "
1482 "but \"-Tek, -Tfields, -Tjson or -Tpdml\" was not specified.");
1483 exit_status = INVALID_OPTION;
1485 } else if (WRITE_FIELDS == output_action && 0 == output_fields_num_fields(output_fields)) {
1486 cmdarg_err("\"-Tfields\" was specified, but no fields were "
1487 "specified with \"-e\".");
1489 exit_status = INVALID_OPTION;
1493 if (dissect_color) {
1494 if (!color_filters_init(&err_msg, NULL)) {
1495 fprintf(stderr, "%s\n", err_msg);
1500 /* If no capture filter or display filter has been specified, and there are
1501 still command-line arguments, treat them as the tokens of a capture
1502 filter (if no "-r" flag was specified) or a display filter (if a "-r"
1503 flag was specified. */
1504 if (optind < argc) {
1505 if (cf_name != NULL) {
1506 if (dfilter != NULL) {
1507 cmdarg_err("Display filters were specified both with \"-d\" "
1508 "and with additional command-line arguments.");
1509 exit_status = INVALID_OPTION;
1512 dfilter = get_args_as_string(argc, argv, optind);
1517 if (global_capture_opts.default_options.cfilter) {
1518 cmdarg_err("A default capture filter was specified both with \"-f\""
1519 " and with additional command-line arguments.");
1520 exit_status = INVALID_OPTION;
1523 for (i = 0; i < global_capture_opts.ifaces->len; i++) {
1524 interface_options *interface_opts;
1525 interface_opts = &g_array_index(global_capture_opts.ifaces, interface_options, i);
1526 if (interface_opts->cfilter == NULL) {
1527 interface_opts->cfilter = get_args_as_string(argc, argv, optind);
1529 cmdarg_err("A capture filter was specified both with \"-f\""
1530 " and with additional command-line arguments.");
1531 exit_status = INVALID_OPTION;
1535 global_capture_opts.default_options.cfilter = get_args_as_string(argc, argv, optind);
1537 capture_option_specified = TRUE;
1543 if (!global_capture_opts.saving_to_file) {
1544 /* We're not saving the capture to a file; if "-q" wasn't specified,
1545 we should print packet information */
1547 print_packet_info = TRUE;
1549 /* We're saving to a file; if we're writing to the standard output.
1550 and we'll also be writing dissected packets to the standard
1551 output, reject the request. At best, we could redirect that
1552 to the standard error; we *can't* write both to the standard
1553 output and have either of them be useful. */
1554 if (strcmp(global_capture_opts.save_file, "-") == 0 && print_packet_info) {
1555 cmdarg_err("You can't write both raw packet data and dissected packets"
1556 " to the standard output.");
1557 exit_status = INVALID_OPTION;
1562 /* We're not saving the capture to a file; if "-q" wasn't specified,
1563 we should print packet information */
1565 print_packet_info = TRUE;
1568 #ifndef HAVE_LIBPCAP
1569 if (capture_option_specified)
1570 cmdarg_err("This version of TShark was not built with support for capturing packets.");
1573 print_usage(stderr);
1574 exit_status = INVALID_OPTION;
1579 if (output_action != WRITE_TEXT && output_action != WRITE_JSON && output_action != WRITE_JSON_RAW && output_action != WRITE_EK) {
1580 cmdarg_err("Raw packet hex data can only be printed as text, PostScript, JSON, JSONRAW or EK JSON");
1581 exit_status = INVALID_OPTION;
1586 if (output_only != NULL) {
1589 if (!print_details) {
1590 cmdarg_err("-O requires -V");
1591 exit_status = INVALID_OPTION;
1595 output_only_tables = g_hash_table_new (g_str_hash, g_str_equal);
1596 for (ps = strtok (output_only, ","); ps; ps = strtok (NULL, ",")) {
1597 g_hash_table_insert(output_only_tables, (gpointer)ps, (gpointer)ps);
1601 if (rfilter != NULL && !perform_two_pass_analysis) {
1602 cmdarg_err("-R without -2 is deprecated. For single-pass filtering use -Y.");
1603 exit_status = INVALID_OPTION;
1609 /* We're supposed to list the link-layer/timestamp types for an interface;
1610 did the user also specify a capture file to be read? */
1612 /* Yes - that's bogus. */
1613 cmdarg_err("You can't specify %s and a capture file to be read.",
1614 caps_queries & CAPS_QUERY_LINK_TYPES ? "-L" : "--list-time-stamp-types");
1615 exit_status = INVALID_OPTION;
1618 /* No - did they specify a ring buffer option? */
1619 if (global_capture_opts.multi_files_on) {
1620 cmdarg_err("Ring buffer requested, but a capture isn't being done.");
1621 exit_status = INVALID_OPTION;
1627 * "-r" was specified, so we're reading a capture file.
1628 * Capture options don't apply here.
1631 /* We don't support capture filters when reading from a capture file
1632 (the BPF compiler doesn't support all link-layer types that we
1633 support in capture files we read). */
1634 if (global_capture_opts.default_options.cfilter) {
1635 cmdarg_err("Only read filters, not capture filters, "
1636 "can be specified when reading a capture file.");
1637 exit_status = INVALID_OPTION;
1640 if (global_capture_opts.multi_files_on) {
1641 cmdarg_err("Multiple capture files requested, but "
1642 "a capture isn't being done.");
1643 exit_status = INVALID_OPTION;
1646 if (global_capture_opts.has_file_duration) {
1647 cmdarg_err("Switching capture files after a time period was specified, but "
1648 "a capture isn't being done.");
1649 exit_status = INVALID_OPTION;
1652 if (global_capture_opts.has_file_interval) {
1653 cmdarg_err("Switching capture files after a time interval was specified, but "
1654 "a capture isn't being done.");
1655 exit_status = INVALID_OPTION;
1658 if (global_capture_opts.has_ring_num_files) {
1659 cmdarg_err("A ring buffer of capture files was specified, but "
1660 "a capture isn't being done.");
1661 exit_status = INVALID_OPTION;
1664 if (global_capture_opts.has_autostop_files) {
1665 cmdarg_err("A maximum number of capture files was specified, but "
1666 "a capture isn't being done.");
1667 exit_status = INVALID_OPTION;
1670 if (global_capture_opts.capture_comment) {
1671 cmdarg_err("A capture comment was specified, but "
1672 "a capture isn't being done.\nThere's no support for adding "
1673 "a capture comment to an existing capture file.");
1674 exit_status = INVALID_OPTION;
1678 /* Note: TShark now allows the restriction of a _read_ file by packet count
1679 * and byte count as well as a write file. Other autostop options remain valid
1680 * only for a write file.
1682 if (global_capture_opts.has_autostop_duration) {
1683 cmdarg_err("A maximum capture time was specified, but "
1684 "a capture isn't being done.");
1685 exit_status = INVALID_OPTION;
1690 * "-r" wasn't specified, so we're doing a live capture.
1692 if (perform_two_pass_analysis) {
1693 /* Two-pass analysis doesn't work with live capture since it requires us
1694 * to buffer packets until we've read all of them, but a live capture
1695 * has no useful/meaningful definition of "all" */
1696 cmdarg_err("Live captures do not support two-pass analysis.");
1697 exit_status = INVALID_OPTION;
1701 if (global_capture_opts.saving_to_file) {
1702 /* They specified a "-w" flag, so we'll be saving to a capture file. */
1704 /* When capturing, we only support writing pcap or pcapng format. */
1705 if (out_file_type != WTAP_FILE_TYPE_SUBTYPE_PCAP &&
1706 out_file_type != WTAP_FILE_TYPE_SUBTYPE_PCAPNG) {
1707 cmdarg_err("Live captures can only be saved in pcap or pcapng format.");
1708 exit_status = INVALID_OPTION;
1711 if (global_capture_opts.capture_comment &&
1712 out_file_type != WTAP_FILE_TYPE_SUBTYPE_PCAPNG) {
1713 cmdarg_err("A capture comment can only be written to a pcapng file.");
1714 exit_status = INVALID_OPTION;
1717 if (global_capture_opts.multi_files_on) {
1718 /* Multiple-file mode doesn't work under certain conditions:
1719 a) it doesn't work if you're writing to the standard output;
1720 b) it doesn't work if you're writing to a pipe;
1722 if (strcmp(global_capture_opts.save_file, "-") == 0) {
1723 cmdarg_err("Multiple capture files requested, but "
1724 "the capture is being written to the standard output.");
1725 exit_status = INVALID_OPTION;
1728 if (global_capture_opts.output_to_pipe) {
1729 cmdarg_err("Multiple capture files requested, but "
1730 "the capture file is a pipe.");
1731 exit_status = INVALID_OPTION;
1734 if (!global_capture_opts.has_autostop_filesize &&
1735 !global_capture_opts.has_file_duration &&
1736 !global_capture_opts.has_file_interval) {
1737 cmdarg_err("Multiple capture files requested, but "
1738 "no maximum capture file size, duration or interval was specified.");
1739 exit_status = INVALID_OPTION;
1743 /* Currently, we don't support read or display filters when capturing
1744 and saving the packets. */
1745 if (rfilter != NULL) {
1746 cmdarg_err("Read filters aren't supported when capturing and saving the captured packets.");
1747 exit_status = INVALID_OPTION;
1750 if (dfilter != NULL) {
1751 cmdarg_err("Display filters aren't supported when capturing and saving the captured packets.");
1752 exit_status = INVALID_OPTION;
1755 global_capture_opts.use_pcapng = (out_file_type == WTAP_FILE_TYPE_SUBTYPE_PCAPNG) ? TRUE : FALSE;
1757 /* They didn't specify a "-w" flag, so we won't be saving to a
1758 capture file. Check for options that only make sense if
1759 we're saving to a file. */
1760 if (global_capture_opts.has_autostop_filesize) {
1761 cmdarg_err("Maximum capture file size specified, but "
1762 "capture isn't being saved to a file.");
1763 exit_status = INVALID_OPTION;
1766 if (global_capture_opts.multi_files_on) {
1767 cmdarg_err("Multiple capture files requested, but "
1768 "the capture isn't being saved to a file.");
1769 exit_status = INVALID_OPTION;
1772 if (global_capture_opts.capture_comment) {
1773 cmdarg_err("A capture comment was specified, but "
1774 "the capture isn't being saved to a file.");
1775 exit_status = INVALID_OPTION;
1784 /* Start windows sockets */
1785 result = WSAStartup( MAKEWORD( 1, 1 ), &wsaData );
1788 exit_status = INIT_FAILED;
1793 /* Notify all registered modules that have had any of their preferences
1794 changed either from one of the preferences file or from the command
1795 line that their preferences have changed. */
1798 /* We can also enable specified taps for export object */
1799 start_exportobjects();
1801 /* At this point MATE will have registered its field array so we can
1802 check if the fields specified by the user are all good.
1806 GSList *invalid_fields = output_fields_valid(output_fields);
1807 if (invalid_fields != NULL) {
1809 cmdarg_err("Some fields aren't valid:");
1810 for (it=invalid_fields; it != NULL; it = g_slist_next(it)) {
1811 cmdarg_err_cont("\t%s", (gchar *)it->data);
1813 g_slist_free(invalid_fields);
1814 exit_status = INVALID_OPTION;
1819 /* We currently don't support taps, or printing dissected packets,
1820 if we're writing to a pipe. */
1821 if (global_capture_opts.saving_to_file &&
1822 global_capture_opts.output_to_pipe) {
1823 if (tap_listeners_require_dissection()) {
1824 cmdarg_err("Taps aren't supported when saving to a pipe.");
1825 exit_status = INVALID_OPTION;
1828 if (print_packet_info) {
1829 cmdarg_err("Printing dissected packets isn't supported when saving to a pipe.");
1830 exit_status = INVALID_OPTION;
1836 if (ex_opt_count("read_format") > 0) {
1837 const gchar* name = ex_opt_get_next("read_format");
1838 in_file_type = open_info_name_to_type(name);
1839 if (in_file_type == WTAP_TYPE_AUTO) {
1840 cmdarg_err("\"%s\" isn't a valid read file format type", name? name : "");
1841 list_read_capture_types();
1842 exit_status = INVALID_OPTION;
1847 timestamp_set_type(global_dissect_options.time_format);
1850 * Enabled and disabled protocols and heuristic dissectors as per
1851 * command-line options.
1853 if (!setup_enabled_and_disabled_protocols()) {
1854 exit_status = INVALID_OPTION;
1858 /* Build the column format array */
1859 build_column_format_array(&cfile.cinfo, prefs_p->num_cols, TRUE);
1862 capture_opts_trim_snaplen(&global_capture_opts, MIN_PACKET_SIZE);
1863 capture_opts_trim_ring_num_files(&global_capture_opts);
1866 if (rfilter != NULL) {
1867 tshark_debug("Compiling read filter: '%s'", rfilter);
1868 if (!dfilter_compile(rfilter, &rfcode, &err_msg)) {
1869 cmdarg_err("%s", err_msg);
1873 #ifdef HAVE_PCAP_OPEN_DEAD
1877 pc = pcap_open_dead(DLT_EN10MB, MIN_PACKET_SIZE);
1879 if (pcap_compile(pc, &fcode, rfilter, 0, 0) != -1) {
1881 " Note: That read filter code looks like a valid capture filter;\n"
1882 " maybe you mixed them up?");
1888 exit_status = INVALID_INTERFACE;
1892 cfile.rfcode = rfcode;
1894 if (dfilter != NULL) {
1895 tshark_debug("Compiling display filter: '%s'", dfilter);
1896 if (!dfilter_compile(dfilter, &dfcode, &err_msg)) {
1897 cmdarg_err("%s", err_msg);
1901 #ifdef HAVE_PCAP_OPEN_DEAD
1905 pc = pcap_open_dead(DLT_EN10MB, MIN_PACKET_SIZE);
1907 if (pcap_compile(pc, &fcode, dfilter, 0, 0) != -1) {
1909 " Note: That display filter code looks like a valid capture filter;\n"
1910 " maybe you mixed them up?");
1916 exit_status = INVALID_FILTER;
1920 cfile.dfcode = dfcode;
1922 if (print_packet_info) {
1923 /* If we're printing as text or PostScript, we have
1924 to create a print stream. */
1925 if (output_action == WRITE_TEXT) {
1926 switch (print_format) {
1929 print_stream = print_stream_text_stdio_new(stdout);
1933 print_stream = print_stream_ps_stdio_new(stdout);
1937 g_assert_not_reached();
1942 /* PDU export requested. Take the ownership of the '-w' file, apply tap
1943 * filters and start tapping. */
1944 if (pdu_export_arg) {
1945 const char *exp_pdu_tap_name = pdu_export_arg;
1946 const char *exp_pdu_filter = dfilter; /* may be NULL to disable filter */
1947 char *exp_pdu_error;
1952 cmdarg_err("PDUs export requires a capture file (specify with -r).");
1953 exit_status = INVALID_OPTION;
1956 /* Take ownership of the '-w' output file. */
1958 exp_pdu_filename = global_capture_opts.save_file;
1959 global_capture_opts.save_file = NULL;
1961 exp_pdu_filename = output_file_name;
1962 output_file_name = NULL;
1964 if (exp_pdu_filename == NULL) {
1965 cmdarg_err("PDUs export requires an output file (-w).");
1966 exit_status = INVALID_OPTION;
1970 exp_pdu_error = exp_pdu_pre_open(exp_pdu_tap_name, exp_pdu_filter,
1972 if (exp_pdu_error) {
1973 cmdarg_err("Cannot register tap: %s", exp_pdu_error);
1974 g_free(exp_pdu_error);
1975 exit_status = INVALID_TAP;
1979 exp_fd = ws_open(exp_pdu_filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0644);
1981 cmdarg_err("%s: %s", exp_pdu_filename, file_open_error_message(errno, TRUE));
1982 exit_status = INVALID_FILE;
1986 /* Activate the export PDU tap */
1987 comment = g_strdup_printf("Dump of PDUs from %s", cf_name);
1988 err = exp_pdu_open(&exp_pdu_tap_data, exp_fd, comment);
1990 cfile_dump_open_failure_message("TShark", exp_pdu_filename, err,
1991 WTAP_FILE_TYPE_SUBTYPE_PCAPNG);
1993 exit_status = INVALID_EXPORT;
1998 tshark_debug("tshark: do_dissection = %s", do_dissection ? "TRUE" : "FALSE");
2001 tshark_debug("tshark: Opening capture file: %s", cf_name);
2003 * We're reading a capture file.
2005 if (cf_open(&cfile, cf_name, in_file_type, FALSE, &err) != CF_OK) {
2008 exit_status = INVALID_FILE;
2012 /* Start statistics taps; we do so after successfully opening the
2013 capture file, so we know we have something to compute stats
2014 on, and after registering all dissectors, so that MATE will
2015 have registered its field array so we can have a tap filter
2016 with one of MATE's late-registered fields as part of the
2018 start_requested_stats();
2020 /* Do we need to do dissection of packets? That depends on, among
2021 other things, what taps are listening, so determine that after
2022 starting the statistics taps. */
2023 do_dissection = must_do_dissection(rfcode, dfcode, pdu_export_arg);
2025 /* Process the packets in the file */
2026 tshark_debug("tshark: invoking process_cap_file() to process the packets");
2029 success = process_cap_file(&cfile, global_capture_opts.save_file, out_file_type, out_file_name_res,
2030 global_capture_opts.has_autostop_packets ? global_capture_opts.autostop_packets : 0,
2031 global_capture_opts.has_autostop_filesize ? global_capture_opts.autostop_filesize : 0);
2033 success = process_cap_file(&cfile, output_file_name, out_file_type, out_file_name_res, 0, 0);
2036 CATCH(OutOfMemoryError) {
2040 "Sorry, but TShark has to terminate now.\n"
2042 "More information and workarounds can be found at\n"
2043 "https://wiki.wireshark.org/KnownBugs/OutOfMemory\n");
2049 /* We still dump out the results of taps, etc., as we might have
2050 read some packets; however, we exit with an error status. */
2054 if (pdu_export_arg) {
2055 err = exp_pdu_close(&exp_pdu_tap_data);
2057 cfile_close_failure_message(exp_pdu_filename, err);
2060 g_free(pdu_export_arg);
2063 tshark_debug("tshark: no capture file specified");
2064 /* No capture file specified, so we're supposed to do a live capture
2065 or get a list of link-layer types for a live capture device;
2066 do we have support for live captures? */
2068 /* if no interface was specified, pick a default */
2069 exit_status = capture_opts_default_iface_if_necessary(&global_capture_opts,
2070 ((prefs_p->capture_device) && (*prefs_p->capture_device != '\0')) ? get_if_name(prefs_p->capture_device) : NULL);
2071 if (exit_status != 0) {
2075 /* if requested, list the link layer types and exit */
2079 /* Get the list of link-layer types for the capture devices. */
2080 for (i = 0; i < global_capture_opts.ifaces->len; i++) {
2081 interface_options *interface_opts;
2082 if_capabilities_t *caps;
2083 char *auth_str = NULL;
2084 int if_caps_queries = caps_queries;
2086 interface_opts = &g_array_index(global_capture_opts.ifaces, interface_options, i);
2087 #ifdef HAVE_PCAP_REMOTE
2088 if (interface_opts->auth_type == CAPTURE_AUTH_PWD) {
2089 auth_str = g_strdup_printf("%s:%s", interface_opts->auth_username, interface_opts->auth_password);
2092 caps = capture_get_if_capabilities(interface_opts->name, interface_opts->monitor_mode, auth_str, &err_str, NULL);
2095 cmdarg_err("%s", err_str);
2097 exit_status = INVALID_CAPABILITY;
2100 if ((if_caps_queries & CAPS_QUERY_LINK_TYPES) && caps->data_link_types == NULL) {
2101 cmdarg_err("The capture device \"%s\" has no data link types.", interface_opts->name);
2102 exit_status = INVALID_DATA_LINK;
2105 if ((if_caps_queries & CAPS_QUERY_TIMESTAMP_TYPES) && caps->timestamp_types == NULL) {
2106 cmdarg_err("The capture device \"%s\" has no timestamp types.", interface_opts->name);
2107 exit_status = INVALID_TIMESTAMP_TYPE;
2110 if (interface_opts->monitor_mode)
2111 if_caps_queries |= CAPS_MONITOR_MODE;
2112 capture_opts_print_if_capabilities(caps, interface_opts->name, if_caps_queries);
2113 free_if_capabilities(caps);
2115 exit_status = EXIT_SUCCESS;
2120 * If the standard error isn't a terminal, don't print packet counts,
2121 * as they won't show up on the user's terminal and they'll get in
2122 * the way of error messages in the file (to which we assume the
2123 * standard error was redirected; if it's redirected to the null
2124 * device, there's no point in printing packet counts anyway).
2126 * Otherwise, if we're printing packet information and the standard
2127 * output is a terminal (which we assume means the standard output and
2128 * error are going to the same terminal), don't print packet counts,
2129 * as they'll get in the way of the packet information.
2131 * Otherwise, if the user specified -q, don't print packet counts.
2133 * Otherwise, print packet counts.
2135 * XXX - what if the user wants to do a live capture, doesn't want
2136 * to save it to a file, doesn't want information printed for each
2137 * packet, does want some "-z" statistic, and wants packet counts
2138 * so they know whether they're seeing any packets? -q will
2139 * suppress the information printed for each packet, but it'll
2140 * also suppress the packet counts.
2142 if (!ws_isatty(ws_fileno(stderr)))
2143 print_packet_counts = FALSE;
2144 else if (print_packet_info && ws_isatty(ws_fileno(stdout)))
2145 print_packet_counts = FALSE;
2147 print_packet_counts = FALSE;
2149 print_packet_counts = TRUE;
2151 if (print_packet_info) {
2152 if (!write_preamble(&cfile)) {
2153 show_print_file_io_error(errno);
2154 exit_status = INVALID_FILE;
2159 tshark_debug("tshark: performing live capture");
2161 /* Start statistics taps; we should only do so after the capture
2162 started successfully, so we know we have something to compute
2163 stats, but we currently don't check for that - see below.
2165 We do so after registering all dissectors, so that MATE will
2166 have registered its field array so we can have a tap filter
2167 with one of MATE's late-registered fields as part of the
2169 start_requested_stats();
2171 /* Do we need to do dissection of packets? That depends on, among
2172 other things, what taps are listening, so determine that after
2173 starting the statistics taps. */
2174 do_dissection = must_do_dissection(rfcode, dfcode, pdu_export_arg);
2177 * XXX - this returns FALSE if an error occurred, but it also
2178 * returns FALSE if the capture stops because a time limit
2179 * was reached (and possibly other limits), so we can't assume
2180 * it means an error.
2182 * The capture code is a bit twisty, so it doesn't appear to
2183 * be an easy fix. We just ignore the return value for now.
2184 * Instead, pass on the exit status from the capture child.
2187 exit_status = global_capture_session.fork_child_status;
2189 if (print_packet_info) {
2190 if (!write_finale()) {
2191 show_print_file_io_error(errno);
2195 /* No - complain. */
2196 cmdarg_err("This version of TShark was not built with support for capturing packets.");
2197 exit_status = INVALID_CAPTURE;
2204 if (cfile.provider.frames != NULL) {
2205 free_frame_data_sequence(cfile.provider.frames);
2206 cfile.provider.frames = NULL;
2209 draw_tap_listeners(TRUE);
2210 funnel_dump_all_text_windows();
2211 epan_free(cfile.epan);
2215 output_fields_free(output_fields);
2216 output_fields = NULL;
2219 destroy_print_stream(print_stream);
2221 capture_opts_cleanup(&global_capture_opts);
2223 col_cleanup(&cfile.cinfo);
2224 free_filter_lists();
2231 /*#define USE_BROKEN_G_MAIN_LOOP*/
2233 #ifdef USE_BROKEN_G_MAIN_LOOP
2236 gboolean loop_running = FALSE;
2238 guint32 packet_count = 0;
2241 typedef struct pipe_input_tag {
2244 ws_process_id *child_process;
2245 pipe_input_cb_t input_cb;
2246 guint pipe_input_id;
2248 GMutex *callback_running;
2252 static pipe_input_t pipe_input;
2255 /* The timer has expired, see if there's stuff to read from the pipe,
2256 if so, do the callback */
2258 pipe_timer_cb(gpointer data)
2264 pipe_input_t *pipe_input_p = data;
2265 gint iterations = 0;
2267 g_mutex_lock (pipe_input_p->callback_running);
2269 /* try to read data from the pipe only 5 times, to avoid blocking */
2270 while(iterations < 5) {
2271 /*g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_timer_cb: new iteration");*/
2273 /* Oddly enough although Named pipes don't work on win9x,
2274 PeekNamedPipe does !!! */
2275 handle = (HANDLE) _get_osfhandle (pipe_input_p->source);
2276 result = PeekNamedPipe(handle, NULL, 0, NULL, &avail, NULL);
2278 /* Get the child process exit status */
2279 GetExitCodeProcess((HANDLE)*(pipe_input_p->child_process),
2282 /* If the Peek returned an error, or there are bytes to be read
2283 or the childwatcher thread has terminated then call the normal
2285 if (!result || avail > 0 || childstatus != STILL_ACTIVE) {
2287 /*g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_timer_cb: data avail");*/
2289 /* And call the real handler */
2290 if (!pipe_input_p->input_cb(pipe_input_p->source, pipe_input_p->user_data)) {
2291 g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_timer_cb: input pipe closed, iterations: %u", iterations);
2292 /* pipe closed, return false so that the timer is stopped */
2293 g_mutex_unlock (pipe_input_p->callback_running);
2298 /*g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_timer_cb: no data avail");*/
2299 /* No data, stop now */
2306 /*g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_timer_cb: finished with iterations: %u, new timer", iterations);*/
2308 g_mutex_unlock (pipe_input_p->callback_running);
2310 /* we didn't stopped the timer, so let it run */
2317 pipe_input_set_handler(gint source, gpointer user_data, ws_process_id *child_process, pipe_input_cb_t input_cb)
2320 pipe_input.source = source;
2321 pipe_input.child_process = child_process;
2322 pipe_input.user_data = user_data;
2323 pipe_input.input_cb = input_cb;
2326 #if GLIB_CHECK_VERSION(2,31,0)
2327 pipe_input.callback_running = g_malloc(sizeof(GMutex));
2328 g_mutex_init(pipe_input.callback_running);
2330 pipe_input.callback_running = g_mutex_new();
2332 /* Tricky to use pipes in win9x, as no concept of wait. NT can
2333 do this but that doesn't cover all win32 platforms. GTK can do
2334 this but doesn't seem to work over processes. Attempt to do
2335 something similar here, start a timer and check for data on every
2337 /*g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_input_set_handler: new");*/
2338 pipe_input.pipe_input_id = g_timeout_add(200, pipe_timer_cb, &pipe_input);
2342 static const nstime_t *
2343 tshark_get_frame_ts(struct packet_provider_data *prov, guint32 frame_num)
2345 if (prov->ref && prov->ref->num == frame_num)
2346 return &prov->ref->abs_ts;
2348 if (prov->prev_dis && prov->prev_dis->num == frame_num)
2349 return &prov->prev_dis->abs_ts;
2351 if (prov->prev_cap && prov->prev_cap->num == frame_num)
2352 return &prov->prev_cap->abs_ts;
2355 frame_data *fd = frame_data_sequence_find(prov->frames, frame_num);
2357 return (fd) ? &fd->abs_ts : NULL;
2364 tshark_epan_new(capture_file *cf)
2366 static const struct packet_provider_funcs funcs = {
2367 tshark_get_frame_ts,
2368 cap_file_provider_get_interface_name,
2369 cap_file_provider_get_interface_description,
2373 return epan_new(&cf->provider, &funcs);
2383 #ifdef USE_TSHARK_SELECT
2387 struct sigaction action, oldaction;
2390 /* Create new dissection section. */
2391 epan_free(cfile.epan);
2392 cfile.epan = tshark_epan_new(&cfile);
2395 /* Catch a CTRL+C event and, if we get it, clean up and exit. */
2396 SetConsoleCtrlHandler(capture_cleanup, TRUE);
2398 /* Catch SIGINT and SIGTERM and, if we get either of them,
2399 clean up and exit. If SIGHUP isn't being ignored, catch
2400 it too and, if we get it, clean up and exit.
2402 We restart any read that was in progress, so that it doesn't
2403 disrupt reading from the sync pipe. The signal handler tells
2404 the capture child to finish; it will report that it finished,
2405 or will exit abnormally, so we'll stop reading from the sync
2406 pipe, pick up the exit status, and quit. */
2407 memset(&action, 0, sizeof(action));
2408 action.sa_handler = capture_cleanup;
2409 action.sa_flags = SA_RESTART;
2410 sigemptyset(&action.sa_mask);
2411 sigaction(SIGTERM, &action, NULL);
2412 sigaction(SIGINT, &action, NULL);
2413 sigaction(SIGHUP, NULL, &oldaction);
2414 if (oldaction.sa_handler == SIG_DFL)
2415 sigaction(SIGHUP, &action, NULL);
2418 /* Catch SIGINFO and, if we get it and we're capturing to a file in
2419 quiet mode, report the number of packets we've captured.
2421 Again, restart any read that was in progress, so that it doesn't
2422 disrupt reading from the sync pipe. */
2423 action.sa_handler = report_counts_siginfo;
2424 action.sa_flags = SA_RESTART;
2425 sigemptyset(&action.sa_mask);
2426 sigaction(SIGINFO, &action, NULL);
2427 #endif /* SIGINFO */
2430 global_capture_session.state = CAPTURE_PREPARING;
2432 /* Let the user know which interfaces were chosen. */
2433 for (i = 0; i < global_capture_opts.ifaces->len; i++) {
2434 interface_options *interface_opts;
2436 interface_opts = &g_array_index(global_capture_opts.ifaces, interface_options, i);
2437 interface_opts->descr = get_interface_descriptive_name(interface_opts->name);
2439 str = get_iface_list_string(&global_capture_opts, IFLIST_QUOTE_IF_DESCRIPTION);
2440 if (really_quiet == FALSE)
2441 fprintf(stderr, "Capturing on %s\n", str->str);
2443 g_string_free(str, TRUE);
2445 ret = sync_pipe_start(&global_capture_opts, &global_capture_session, &global_info_data, NULL);
2450 /* the actual capture loop
2452 * XXX - glib doesn't seem to provide any event based loop handling.
2454 * XXX - for whatever reason,
2455 * calling g_main_loop_new() ends up in 100% cpu load.
2457 * But that doesn't matter: in UNIX we can use select() to find an input
2458 * source with something to do.
2460 * But that doesn't matter because we're in a CLI (that doesn't need to
2461 * update a GUI or something at the same time) so it's OK if we block
2462 * trying to read from the pipe.
2464 * So all the stuff in USE_TSHARK_SELECT could be removed unless I'm
2465 * wrong (but I leave it there in case I am...).
2468 #ifdef USE_TSHARK_SELECT
2470 FD_SET(pipe_input.source, &readfds);
2473 loop_running = TRUE;
2477 while (loop_running)
2479 #ifdef USE_TSHARK_SELECT
2480 ret = select(pipe_input.source+1, &readfds, NULL, NULL, NULL);
2484 fprintf(stderr, "%s: %s\n", "select()", g_strerror(errno));
2486 } else if (ret == 1) {
2488 /* Call the real handler */
2489 if (!pipe_input.input_cb(pipe_input.source, pipe_input.user_data)) {
2490 g_log(NULL, G_LOG_LEVEL_DEBUG, "input pipe closed");
2493 #ifdef USE_TSHARK_SELECT
2498 CATCH(OutOfMemoryError) {
2502 "Sorry, but TShark has to terminate now.\n"
2504 "More information and workarounds can be found at\n"
2505 "https://wiki.wireshark.org/KnownBugs/OutOfMemory\n");
2512 /* capture child detected an error */
2514 capture_input_error_message(capture_session *cap_session _U_, char *error_msg, char *secondary_error_msg)
2516 cmdarg_err("%s", error_msg);
2517 cmdarg_err_cont("%s", secondary_error_msg);
2521 /* capture child detected an capture filter related error */
2523 capture_input_cfilter_error_message(capture_session *cap_session, guint i, char *error_message)
2525 capture_options *capture_opts = cap_session->capture_opts;
2526 dfilter_t *rfcode = NULL;
2527 interface_options *interface_opts;
2529 g_assert(i < capture_opts->ifaces->len);
2530 interface_opts = &g_array_index(capture_opts->ifaces, interface_options, i);
2532 if (dfilter_compile(interface_opts->cfilter, &rfcode, NULL) && rfcode != NULL) {
2534 "Invalid capture filter \"%s\" for interface '%s'.\n"
2536 "That string looks like a valid display filter; however, it isn't a valid\n"
2537 "capture filter (%s).\n"
2539 "Note that display filters and capture filters don't have the same syntax,\n"
2540 "so you can't use most display filter expressions as capture filters.\n"
2542 "See the User's Guide for a description of the capture filter syntax.",
2543 interface_opts->cfilter, interface_opts->descr, error_message);
2544 dfilter_free(rfcode);
2547 "Invalid capture filter \"%s\" for interface '%s'.\n"
2549 "That string isn't a valid capture filter (%s).\n"
2550 "See the User's Guide for a description of the capture filter syntax.",
2551 interface_opts->cfilter, interface_opts->descr, error_message);
2556 /* capture child tells us we have a new (or the first) capture file */
2558 capture_input_new_file(capture_session *cap_session, gchar *new_file)
2560 capture_options *capture_opts = cap_session->capture_opts;
2561 capture_file *cf = (capture_file *) cap_session->cf;
2562 gboolean is_tempfile;
2565 if (cap_session->state == CAPTURE_PREPARING) {
2566 g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_MESSAGE, "Capture started.");
2568 g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_MESSAGE, "File: \"%s\"", new_file);
2570 g_assert(cap_session->state == CAPTURE_PREPARING || cap_session->state == CAPTURE_RUNNING);
2572 /* free the old filename */
2573 if (capture_opts->save_file != NULL) {
2575 /* we start a new capture file, close the old one (if we had one before) */
2576 if (cf->state != FILE_CLOSED) {
2577 if (cf->provider.wth != NULL) {
2578 wtap_close(cf->provider.wth);
2579 cf->provider.wth = NULL;
2581 cf->state = FILE_CLOSED;
2584 g_free(capture_opts->save_file);
2585 is_tempfile = FALSE;
2587 epan_free(cf->epan);
2588 cf->epan = tshark_epan_new(cf);
2590 /* we didn't had a save_file before, must be a tempfile */
2594 /* save the new filename */
2595 capture_opts->save_file = g_strdup(new_file);
2597 /* if we are in real-time mode, open the new file now */
2598 if (do_dissection) {
2599 /* this is probably unecessary, but better safe than sorry */
2600 ((capture_file *)cap_session->cf)->open_type = WTAP_TYPE_AUTO;
2601 /* Attempt to open the capture file and set up to read from it. */
2602 switch(cf_open((capture_file *)cap_session->cf, capture_opts->save_file, WTAP_TYPE_AUTO, is_tempfile, &err)) {
2606 /* Don't unlink (delete) the save file - leave it around,
2607 for debugging purposes. */
2608 g_free(capture_opts->save_file);
2609 capture_opts->save_file = NULL;
2614 cap_session->state = CAPTURE_RUNNING;
2620 /* capture child tells us we have new packets to read */
2622 capture_input_new_packets(capture_session *cap_session, int to_read)
2628 capture_file *cf = (capture_file *)cap_session->cf;
2629 gboolean filtering_tap_listeners;
2634 * Prevent a SIGINFO handler from writing to the standard error while
2635 * we're doing so or writing to the standard output; instead, have it
2636 * just set a flag telling us to print that information when we're done.
2639 #endif /* SIGINFO */
2641 /* Do we have any tap listeners with filters? */
2642 filtering_tap_listeners = have_filtering_tap_listeners();
2644 /* Get the union of the flags for all tap listeners. */
2645 tap_flags = union_of_tap_listener_flags();
2647 if (do_dissection) {
2648 gboolean create_proto_tree;
2649 epan_dissect_t *edt;
2652 * Determine whether we need to create a protocol tree.
2655 * we're going to apply a read filter;
2657 * we're going to apply a display filter;
2659 * we're going to print the protocol tree;
2661 * one of the tap listeners is going to apply a filter;
2663 * one of the tap listeners requires a protocol tree;
2665 * a postdissector wants field values or protocols
2666 * on the first pass;
2668 * we have custom columns (which require field values, which
2669 * currently requires that we build a protocol tree).
2672 (cf->rfcode || cf->dfcode || print_details || filtering_tap_listeners ||
2673 (tap_flags & TL_REQUIRES_PROTO_TREE) || postdissectors_want_hfids() ||
2674 have_custom_cols(&cf->cinfo) || dissect_color);
2676 /* The protocol tree will be "visible", i.e., printed, only if we're
2677 printing packet details, which is true if we're printing stuff
2678 ("print_packet_info" is true) and we're in verbose mode
2679 ("packet_details" is true). */
2680 edt = epan_dissect_new(cf->epan, create_proto_tree, print_packet_info && print_details);
2682 while (to_read-- && cf->provider.wth) {
2683 wtap_cleareof(cf->provider.wth);
2684 ret = wtap_read(cf->provider.wth, &err, &err_info, &data_offset);
2685 reset_epan_mem(cf, edt, create_proto_tree, print_packet_info && print_details);
2687 /* read from file failed, tell the capture child to stop */
2688 sync_pipe_stop(cap_session);
2689 wtap_close(cf->provider.wth);
2690 cf->provider.wth = NULL;
2692 ret = process_packet_single_pass(cf, edt, data_offset,
2693 wtap_get_rec(cf->provider.wth),
2694 wtap_get_buf_ptr(cf->provider.wth), tap_flags);
2697 /* packet successfully read and gone through the "Read Filter" */
2702 epan_dissect_free(edt);
2706 * Dumpcap's doing all the work; we're not doing any dissection.
2707 * Count all the packets it wrote.
2709 packet_count += to_read;
2712 if (print_packet_counts) {
2713 /* We're printing packet counts. */
2714 if (packet_count != 0) {
2715 fprintf(stderr, "\r%u ", packet_count);
2716 /* stderr could be line buffered */
2723 * Allow SIGINFO handlers to write.
2728 * If a SIGINFO handler asked us to write out capture counts, do so.
2732 #endif /* SIGINFO */
2738 if ((print_packet_counts == FALSE) && (really_quiet == FALSE)) {
2739 /* Report the count only if we aren't printing a packet count
2740 as packets arrive. */
2741 fprintf(stderr, "%u packet%s captured\n", packet_count,
2742 plurality(packet_count, "", "s"));
2745 infoprint = FALSE; /* we just reported it */
2746 #endif /* SIGINFO */
2751 report_counts_siginfo(int signum _U_)
2753 int sav_errno = errno;
2754 /* If we've been told to delay printing, just set a flag asking
2755 that we print counts (if we're supposed to), otherwise print
2756 the count of packets captured (if we're supposed to). */
2763 #endif /* SIGINFO */
2766 /* capture child detected any packet drops? */
2768 capture_input_drops(capture_session *cap_session _U_, guint32 dropped)
2770 if (print_packet_counts) {
2771 /* We're printing packet counts to stderr.
2772 Send a newline so that we move to the line after the packet count. */
2773 fprintf(stderr, "\n");
2777 /* We're printing packet counts to stderr.
2778 Send a newline so that we move to the line after the packet count. */
2779 fprintf(stderr, "%u packet%s dropped\n", dropped, plurality(dropped, "", "s"));
2785 * Capture child closed its side of the pipe, report any error and
2786 * do the required cleanup.
2789 capture_input_closed(capture_session *cap_session, gchar *msg)
2791 capture_file *cf = (capture_file *) cap_session->cf;
2794 fprintf(stderr, "tshark: %s\n", msg);
2798 if (cf != NULL && cf->provider.wth != NULL) {
2799 wtap_close(cf->provider.wth);
2800 if (cf->is_tempfile) {
2801 ws_unlink(cf->filename);
2804 #ifdef USE_BROKEN_G_MAIN_LOOP
2805 /*g_main_loop_quit(loop);*/
2806 g_main_loop_quit(loop);
2808 loop_running = FALSE;
2817 capture_cleanup(DWORD ctrltype _U_)
2819 /* CTRL_C_EVENT is sort of like SIGINT, CTRL_BREAK_EVENT is unique to
2820 Windows, CTRL_CLOSE_EVENT is sort of like SIGHUP, CTRL_LOGOFF_EVENT
2821 is also sort of like SIGHUP, and CTRL_SHUTDOWN_EVENT is sort of
2822 like SIGTERM at least when the machine's shutting down.
2824 For now, we handle them all as indications that we should clean up
2825 and quit, just as we handle SIGINT, SIGHUP, and SIGTERM in that
2828 We must return TRUE so that no other handler - such as one that would
2829 terminate the process - gets called.
2831 XXX - for some reason, typing ^C to TShark, if you run this in
2832 a Cygwin console window in at least some versions of Cygwin,
2833 causes TShark to terminate immediately; this routine gets
2834 called, but the main loop doesn't get a chance to run and
2835 exit cleanly, at least if this is compiled with Microsoft Visual
2836 C++ (i.e., it's a property of the Cygwin console window or Bash;
2837 it happens if TShark is not built with Cygwin - for all I know,
2838 building it with Cygwin may make the problem go away). */
2840 /* tell the capture child to stop */
2841 sync_pipe_stop(&global_capture_session);
2843 /* don't stop our own loop already here, otherwise status messages and
2844 * cleanup wouldn't be done properly. The child will indicate the stop of
2845 * everything by calling capture_input_closed() later */
2851 capture_cleanup(int signum _U_)
2853 /* tell the capture child to stop */
2854 sync_pipe_stop(&global_capture_session);
2856 /* don't stop our own loop already here, otherwise status messages and
2857 * cleanup wouldn't be done properly. The child will indicate the stop of
2858 * everything by calling capture_input_closed() later */
2861 #endif /* HAVE_LIBPCAP */
2864 process_packet_first_pass(capture_file *cf, epan_dissect_t *edt,
2865 gint64 offset, wtap_rec *rec,
2872 /* The frame number of this packet is one more than the count of
2873 frames in this packet. */
2874 framenum = cf->count + 1;
2876 /* If we're not running a display filter and we're not printing any
2877 packet information, we don't need to do a dissection. This means
2878 that all packets can be marked as 'passed'. */
2881 frame_data_init(&fdlocal, framenum, rec, offset, cum_bytes);
2883 /* If we're going to run a read filter or a display filter, set up to
2884 do a dissection and do so. (This is the first pass of two passes
2885 over the packets, so we will not be printing any information
2886 from the dissection or running taps on the packet; if we're doing
2887 any of that, we'll do it in the second pass.) */
2889 if (gbl_resolv_flags.mac_name || gbl_resolv_flags.network_name ||
2890 gbl_resolv_flags.transport_name)
2891 /* Grab any resolved addresses */
2892 host_name_lookup_process();
2894 /* If we're running a read filter, prime the epan_dissect_t with that
2897 epan_dissect_prime_with_dfilter(edt, cf->rfcode);
2900 epan_dissect_prime_with_dfilter(edt, cf->dfcode);
2902 /* This is the first pass, so prime the epan_dissect_t with the
2903 hfids postdissectors want on the first pass. */
2904 prime_epan_dissect_with_postdissector_wanted_hfids(edt);
2906 frame_data_set_before_dissect(&fdlocal, &cf->elapsed_time,
2907 &cf->provider.ref, cf->provider.prev_dis);
2908 if (cf->provider.ref == &fdlocal) {
2909 ref_frame = fdlocal;
2910 cf->provider.ref = &ref_frame;
2913 epan_dissect_run(edt, cf->cd_t, rec,
2914 frame_tvbuff_new(&cf->provider, &fdlocal, pd),
2917 /* Run the read filter if we have one. */
2919 passed = dfilter_apply_edt(cf->rfcode, edt);
2923 frame_data_set_after_dissect(&fdlocal, &cum_bytes);
2924 cf->provider.prev_cap = cf->provider.prev_dis = frame_data_sequence_add(cf->provider.frames, &fdlocal);
2926 /* If we're not doing dissection then there won't be any dependent frames.
2927 * More importantly, edt.pi.dependent_frames won't be initialized because
2928 * epan hasn't been initialized.
2929 * if we *are* doing dissection, then mark the dependent frames, but only
2930 * if a display filter was given and it matches this packet.
2932 if (edt && cf->dfcode) {
2933 if (dfilter_apply_edt(cf->dfcode, edt)) {
2934 g_slist_foreach(edt->pi.dependent_frames, find_and_mark_frame_depended_upon, cf->provider.frames);
2940 /* if we don't add it to the frame_data_sequence, clean it up right now
2942 frame_data_destroy(&fdlocal);
2946 epan_dissect_reset(edt);
2952 process_packet_second_pass(capture_file *cf, epan_dissect_t *edt,
2953 frame_data *fdata, wtap_rec *rec,
2954 Buffer *buf, guint tap_flags)
2959 /* If we're not running a display filter and we're not printing any
2960 packet information, we don't need to do a dissection. This means
2961 that all packets can be marked as 'passed'. */
2964 /* If we're going to print packet information, or we're going to
2965 run a read filter, or we're going to process taps, set up to
2966 do a dissection and do so. (This is the second pass of two
2967 passes over the packets; that's the pass where we print
2968 packet information or run taps.) */
2970 if (gbl_resolv_flags.mac_name || gbl_resolv_flags.network_name ||
2971 gbl_resolv_flags.transport_name)
2972 /* Grab any resolved addresses */
2973 host_name_lookup_process();
2975 /* If we're running a display filter, prime the epan_dissect_t with that
2978 epan_dissect_prime_with_dfilter(edt, cf->dfcode);
2980 col_custom_prime_edt(edt, &cf->cinfo);
2982 /* We only need the columns if either
2983 1) some tap needs the columns
2985 2) we're printing packet info but we're *not* verbose; in verbose
2986 mode, we print the protocol tree, not the protocol summary.
2988 if ((tap_flags & TL_REQUIRES_COLUMNS) || (print_packet_info && print_summary) || output_fields_has_cols(output_fields))
2993 frame_data_set_before_dissect(fdata, &cf->elapsed_time,
2994 &cf->provider.ref, cf->provider.prev_dis);
2995 if (cf->provider.ref == fdata) {
2997 cf->provider.ref = &ref_frame;
3000 if (dissect_color) {
3001 color_filters_prime_edt(edt);
3002 fdata->flags.need_colorize = 1;
3005 epan_dissect_run_with_taps(edt, cf->cd_t, rec,
3006 frame_tvbuff_new_buffer(&cf->provider, fdata, buf),
3009 /* Run the read/display filter if we have one. */
3011 passed = dfilter_apply_edt(cf->dfcode, edt);
3015 frame_data_set_after_dissect(fdata, &cum_bytes);
3016 /* Process this packet. */
3017 if (print_packet_info) {
3018 /* We're printing packet information; print the information for
3020 print_packet(cf, edt);
3022 /* If we're doing "line-buffering", flush the standard output
3023 after every packet. See the comment above, for the "-l"
3024 option, for an explanation of why we do that. */
3028 if (ferror(stdout)) {
3029 show_print_file_io_error(errno);
3033 cf->provider.prev_dis = fdata;
3035 cf->provider.prev_cap = fdata;
3038 epan_dissect_reset(edt);
3040 return passed || fdata->flags.dependent_of_displayed;
3044 process_cap_file(capture_file *cf, char *save_file, int out_file_type,
3045 gboolean out_file_name_res, int max_packet_count, gint64 max_byte_count)
3047 gboolean success = TRUE;
3049 int snapshot_length;
3052 int err = 0, err_pass1 = 0;
3053 gchar *err_info = NULL, *err_info_pass1 = NULL;
3055 gboolean filtering_tap_listeners;
3057 GArray *shb_hdrs = NULL;
3058 wtapng_iface_descriptions_t *idb_inf = NULL;
3059 GArray *nrb_hdrs = NULL;
3062 epan_dissect_t *edt = NULL;
3063 char *shb_user_appl;
3065 wtap_rec_init(&rec);
3067 idb_inf = wtap_file_get_idb_info(cf->provider.wth);
3068 #ifdef PCAP_NG_DEFAULT
3069 if (idb_inf->interface_data->len > 1) {
3070 linktype = WTAP_ENCAP_PER_PACKET;
3072 linktype = wtap_file_encap(cf->provider.wth);
3075 linktype = wtap_file_encap(cf->provider.wth);
3077 if (save_file != NULL) {
3078 /* Set up to write to the capture file. */
3079 snapshot_length = wtap_snapshot_length(cf->provider.wth);
3080 if (snapshot_length == 0) {
3081 /* Snapshot length of input file not known. */
3082 snapshot_length = WTAP_MAX_PACKET_SIZE_STANDARD;
3084 tshark_debug("tshark: snapshot_length = %d", snapshot_length);
3086 shb_hdrs = wtap_file_get_shb_for_new_file(cf->provider.wth);
3087 nrb_hdrs = wtap_file_get_nrb_for_new_file(cf->provider.wth);
3089 /* If we don't have an application name add Tshark */
3090 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) {
3091 /* this is free'd by wtap_block_free() later */
3092 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());
3095 if (linktype != WTAP_ENCAP_PER_PACKET &&
3096 out_file_type == WTAP_FILE_TYPE_SUBTYPE_PCAP) {
3097 tshark_debug("tshark: writing PCAP format to %s", save_file);
3098 if (strcmp(save_file, "-") == 0) {
3099 /* Write to the standard output. */
3100 pdh = wtap_dump_open_stdout(out_file_type, linktype,
3101 snapshot_length, FALSE /* compressed */, &err);
3103 pdh = wtap_dump_open(save_file, out_file_type, linktype,
3104 snapshot_length, FALSE /* compressed */, &err);
3108 tshark_debug("tshark: writing format type %d, to %s", out_file_type, save_file);
3109 if (strcmp(save_file, "-") == 0) {
3110 /* Write to the standard output. */
3111 pdh = wtap_dump_open_stdout_ng(out_file_type, linktype,
3112 snapshot_length, FALSE /* compressed */, shb_hdrs, idb_inf, nrb_hdrs, &err);
3114 pdh = wtap_dump_open_ng(save_file, out_file_type, linktype,
3115 snapshot_length, FALSE /* compressed */, shb_hdrs, idb_inf, nrb_hdrs, &err);
3123 /* We couldn't set up to write to the capture file. */
3124 cfile_dump_open_failure_message("TShark", save_file, err, out_file_type);
3129 /* Set up to print packet information. */
3130 if (print_packet_info) {
3131 if (!write_preamble(cf)) {
3132 show_print_file_io_error(errno);
3142 /* Do we have any tap listeners with filters? */
3143 filtering_tap_listeners = have_filtering_tap_listeners();
3145 /* Get the union of the flags for all tap listeners. */
3146 tap_flags = union_of_tap_listener_flags();
3148 if (perform_two_pass_analysis) {
3151 tshark_debug("tshark: perform_two_pass_analysis, do_dissection=%s", do_dissection ? "TRUE" : "FALSE");
3153 /* Allocate a frame_data_sequence for all the frames. */
3154 cf->provider.frames = new_frame_data_sequence();
3156 if (do_dissection) {
3157 gboolean create_proto_tree;
3160 * Determine whether we need to create a protocol tree.
3163 * we're going to apply a read filter;
3165 * we're going to apply a display filter;
3167 * a postdissector wants field values or protocols
3168 * on the first pass.
3171 (cf->rfcode != NULL || cf->dfcode != NULL || postdissectors_want_hfids() || dissect_color);
3173 tshark_debug("tshark: create_proto_tree = %s", create_proto_tree ? "TRUE" : "FALSE");
3175 /* We're not going to display the protocol tree on this pass,
3176 so it's not going to be "visible". */
3177 edt = epan_dissect_new(cf->epan, create_proto_tree, FALSE);
3180 tshark_debug("tshark: reading records for first pass");
3181 while (wtap_read(cf->provider.wth, &err, &err_info, &data_offset)) {
3182 if (process_packet_first_pass(cf, edt, data_offset, wtap_get_rec(cf->provider.wth),
3183 wtap_get_buf_ptr(cf->provider.wth))) {
3184 /* Stop reading if we have the maximum number of packets;
3185 * When the -c option has not been used, max_packet_count
3186 * starts at 0, which practically means, never stop reading.
3187 * (unless we roll over max_packet_count ?)
3189 if ( (--max_packet_count == 0) || (max_byte_count != 0 && data_offset >= max_byte_count)) {
3190 tshark_debug("tshark: max_packet_count (%d) or max_byte_count (%" G_GINT64_MODIFIER "d/%" G_GINT64_MODIFIER "d) reached",
3191 max_packet_count, data_offset, max_byte_count);
3192 err = 0; /* This is not an error */
3199 * If we got a read error on the first pass, remember the error, so
3200 * but do the second pass, so we can at least process the packets we
3201 * read, and then report the first-pass error after the second pass
3202 * (and before we report any second-pass errors), so all the the
3203 * errors show up at the end.
3207 err_info_pass1 = err_info;
3213 epan_dissect_free(edt);
3217 /* Close the sequential I/O side, to free up memory it requires. */
3218 wtap_sequential_close(cf->provider.wth);
3220 /* Allow the protocol dissectors to free up memory that they
3221 * don't need after the sequential run-through of the packets. */
3222 postseq_cleanup_all_protocols();
3224 cf->provider.prev_dis = NULL;
3225 cf->provider.prev_cap = NULL;
3226 ws_buffer_init(&buf, 1500);
3228 tshark_debug("tshark: done with first pass");
3230 if (do_dissection) {
3231 gboolean create_proto_tree;
3234 * Determine whether we need to create a protocol tree.
3237 * we're going to apply a display filter;
3239 * we're going to print the protocol tree;
3241 * one of the tap listeners requires a protocol tree;
3243 * we have custom columns (which require field values, which
3244 * currently requires that we build a protocol tree).
3247 (cf->dfcode || print_details || filtering_tap_listeners ||
3248 (tap_flags & TL_REQUIRES_PROTO_TREE) || have_custom_cols(&cf->cinfo) || dissect_color);
3250 tshark_debug("tshark: create_proto_tree = %s", create_proto_tree ? "TRUE" : "FALSE");
3252 /* The protocol tree will be "visible", i.e., printed, only if we're
3253 printing packet details, which is true if we're printing stuff
3254 ("print_packet_info" is true) and we're in verbose mode
3255 ("packet_details" is true). */
3256 edt = epan_dissect_new(cf->epan, create_proto_tree, print_packet_info && print_details);
3259 for (framenum = 1; err == 0 && framenum <= cf->count; framenum++) {
3260 fdata = frame_data_sequence_find(cf->provider.frames, framenum);
3261 if (wtap_seek_read(cf->provider.wth, fdata->file_off, &rec, &buf, &err,
3263 tshark_debug("tshark: invoking process_packet_second_pass() for frame #%d", framenum);
3264 if (process_packet_second_pass(cf, edt, fdata, &rec, &buf,
3266 /* Either there's no read filtering or this packet passed the
3267 filter, so, if we're writing to a capture file, write
3270 tshark_debug("tshark: writing packet #%d to outfile", framenum);
3271 if (!wtap_dump(pdh, &rec, ws_buffer_start_ptr(&buf), &err, &err_info)) {
3272 /* Error writing to a capture file */
3273 tshark_debug("tshark: error writing to a capture file (%d)", err);
3275 /* Report the error.
3276 XXX - framenum is not necessarily the frame number in
3277 the input file if there was a read filter. */
3278 cfile_write_failure_message("TShark", cf->filename, save_file,
3279 err, err_info, framenum,
3281 wtap_dump_close(pdh, &err);
3282 wtap_block_array_free(shb_hdrs);
3283 wtap_block_array_free(nrb_hdrs);
3292 epan_dissect_free(edt);
3296 ws_buffer_free(&buf);
3298 tshark_debug("tshark: done with second pass");
3301 /* !perform_two_pass_analysis */
3303 gboolean create_proto_tree = FALSE;
3304 tshark_debug("tshark: perform one pass analysis, do_dissection=%s", do_dissection ? "TRUE" : "FALSE");
3306 if (do_dissection) {
3308 * Determine whether we need to create a protocol tree.
3311 * we're going to apply a read filter;
3313 * we're going to apply a display filter;
3315 * we're going to print the protocol tree;
3317 * one of the tap listeners is going to apply a filter;
3319 * one of the tap listeners requires a protocol tree;
3321 * a postdissector wants field values or protocols
3322 * on the first pass;
3324 * we have custom columns (which require field values, which
3325 * currently requires that we build a protocol tree).
3328 (cf->rfcode || cf->dfcode || print_details || filtering_tap_listeners ||
3329 (tap_flags & TL_REQUIRES_PROTO_TREE) || postdissectors_want_hfids() ||
3330 have_custom_cols(&cf->cinfo) || dissect_color);
3332 tshark_debug("tshark: create_proto_tree = %s", create_proto_tree ? "TRUE" : "FALSE");
3334 /* The protocol tree will be "visible", i.e., printed, only if we're
3335 printing packet details, which is true if we're printing stuff
3336 ("print_packet_info" is true) and we're in verbose mode
3337 ("packet_details" is true). */
3338 edt = epan_dissect_new(cf->epan, create_proto_tree, print_packet_info && print_details);
3341 while (wtap_read(cf->provider.wth, &err, &err_info, &data_offset)) {
3344 tshark_debug("tshark: processing packet #%d", framenum);
3346 reset_epan_mem(cf, edt, create_proto_tree, print_packet_info && print_details);
3348 if (process_packet_single_pass(cf, edt, data_offset, wtap_get_rec(cf->provider.wth),
3349 wtap_get_buf_ptr(cf->provider.wth), tap_flags)) {
3350 /* Either there's no read filtering or this packet passed the
3351 filter, so, if we're writing to a capture file, write
3354 tshark_debug("tshark: writing packet #%d to outfile", framenum);
3355 if (!wtap_dump(pdh, wtap_get_rec(cf->provider.wth), wtap_get_buf_ptr(cf->provider.wth), &err, &err_info)) {
3356 /* Error writing to a capture file */
3357 tshark_debug("tshark: error writing to a capture file (%d)", err);
3358 cfile_write_failure_message("TShark", cf->filename, save_file,
3359 err, err_info, framenum, out_file_type);
3360 wtap_dump_close(pdh, &err);
3361 wtap_block_array_free(shb_hdrs);
3362 wtap_block_array_free(nrb_hdrs);
3367 /* Stop reading if we have the maximum number of packets;
3368 * When the -c option has not been used, max_packet_count
3369 * starts at 0, which practically means, never stop reading.
3370 * (unless we roll over max_packet_count ?)
3372 if ( (--max_packet_count == 0) || (max_byte_count != 0 && data_offset >= max_byte_count)) {
3373 tshark_debug("tshark: max_packet_count (%d) or max_byte_count (%" G_GINT64_MODIFIER "d/%" G_GINT64_MODIFIER "d) reached",
3374 max_packet_count, data_offset, max_byte_count);
3375 err = 0; /* This is not an error */
3381 epan_dissect_free(edt);
3386 wtap_rec_cleanup(&rec);
3388 if (err != 0 || err_pass1 != 0) {
3389 tshark_debug("tshark: something failed along the line (%d)", err);
3391 * Print a message noting that the read failed somewhere along the line.
3393 * If we're printing packet data, and the standard output and error are
3394 * going to the same place, flush the standard output, so everything
3395 * buffered up is written, and then print a newline to the standard error
3396 * before printing the error message, to separate it from the packet
3397 * data. (Alas, that only works on UN*X; st_dev is meaningless, and
3398 * the _fstat() documentation at Microsoft doesn't indicate whether
3399 * st_ino is even supported.)
3402 if (print_packet_info) {
3403 ws_statb64 stat_stdout, stat_stderr;
3405 if (ws_fstat64(1, &stat_stdout) == 0 && ws_fstat64(2, &stat_stderr) == 0) {
3406 if (stat_stdout.st_dev == stat_stderr.st_dev &&
3407 stat_stdout.st_ino == stat_stderr.st_ino) {
3409 fprintf(stderr, "\n");
3414 if (err_pass1 != 0) {
3415 /* Error on pass 1 of two-pass processing. */
3416 cfile_read_failure_message("TShark", cf->filename, err_pass1,
3420 /* Error on pass 2 of two-pass processing or on the only pass of
3421 one-pass processing. */
3422 cfile_read_failure_message("TShark", cf->filename, err, err_info);
3426 if (save_file != NULL) {
3427 if (pdh && out_file_name_res) {
3428 if (!wtap_dump_set_addrinfo_list(pdh, get_addrinfo_list())) {
3429 cmdarg_err("The file format \"%s\" doesn't support name resolution information.",
3430 wtap_file_type_subtype_short_string(out_file_type));
3433 /* Now close the capture file. */
3434 if (!wtap_dump_close(pdh, &err)) {
3435 cfile_close_failure_message(save_file, err);
3439 if (print_packet_info) {
3440 if (!write_finale()) {
3441 show_print_file_io_error(errno);
3448 wtap_close(cf->provider.wth);
3449 cf->provider.wth = NULL;
3451 wtap_block_array_free(shb_hdrs);
3452 wtap_block_array_free(nrb_hdrs);
3458 process_packet_single_pass(capture_file *cf, epan_dissect_t *edt, gint64 offset,
3459 wtap_rec *rec, const guchar *pd,
3466 /* Count this packet. */
3469 /* If we're not running a display filter and we're not printing any
3470 packet information, we don't need to do a dissection. This means
3471 that all packets can be marked as 'passed'. */
3474 frame_data_init(&fdata, cf->count, rec, offset, cum_bytes);
3476 /* If we're going to print packet information, or we're going to
3477 run a read filter, or we're going to process taps, set up to
3478 do a dissection and do so. (This is the one and only pass
3479 over the packets, so, if we'll be printing packet information
3480 or running taps, we'll be doing it here.) */
3482 if (print_packet_info && (gbl_resolv_flags.mac_name || gbl_resolv_flags.network_name ||
3483 gbl_resolv_flags.transport_name))
3484 /* Grab any resolved addresses */
3485 host_name_lookup_process();
3487 /* If we're running a filter, prime the epan_dissect_t with that
3490 epan_dissect_prime_with_dfilter(edt, cf->dfcode);
3492 /* This is the first and only pass, so prime the epan_dissect_t
3493 with the hfids postdissectors want on the first pass. */
3494 prime_epan_dissect_with_postdissector_wanted_hfids(edt);
3496 col_custom_prime_edt(edt, &cf->cinfo);
3498 /* We only need the columns if either
3499 1) some tap needs the columns
3501 2) we're printing packet info but we're *not* verbose; in verbose
3502 mode, we print the protocol tree, not the protocol summary.
3504 3) there is a column mapped as an individual field */
3505 if ((tap_flags & TL_REQUIRES_COLUMNS) || (print_packet_info && print_summary) || output_fields_has_cols(output_fields))
3510 frame_data_set_before_dissect(&fdata, &cf->elapsed_time,
3511 &cf->provider.ref, cf->provider.prev_dis);
3512 if (cf->provider.ref == &fdata) {
3514 cf->provider.ref = &ref_frame;
3517 if (dissect_color) {
3518 color_filters_prime_edt(edt);
3519 fdata.flags.need_colorize = 1;
3522 epan_dissect_run_with_taps(edt, cf->cd_t, rec,
3523 frame_tvbuff_new(&cf->provider, &fdata, pd),
3526 /* Run the filter if we have it. */
3528 passed = dfilter_apply_edt(cf->dfcode, edt);
3532 frame_data_set_after_dissect(&fdata, &cum_bytes);
3534 /* Process this packet. */
3535 if (print_packet_info) {
3536 /* We're printing packet information; print the information for
3539 print_packet(cf, edt);
3541 /* If we're doing "line-buffering", flush the standard output
3542 after every packet. See the comment above, for the "-l"
3543 option, for an explanation of why we do that. */
3547 if (ferror(stdout)) {
3548 show_print_file_io_error(errno);
3553 /* this must be set after print_packet() [bug #8160] */
3554 prev_dis_frame = fdata;
3555 cf->provider.prev_dis = &prev_dis_frame;
3558 prev_cap_frame = fdata;
3559 cf->provider.prev_cap = &prev_cap_frame;
3562 epan_dissect_reset(edt);
3563 frame_data_destroy(&fdata);
3569 write_preamble(capture_file *cf)
3571 switch (output_action) {
3574 return print_preamble(print_stream, cf->filename, get_ws_vcs_version_info());
3578 write_pdml_preamble(stdout, cf->filename);
3580 write_psml_preamble(&cf->cinfo, stdout);
3581 return !ferror(stdout);
3584 write_fields_preamble(output_fields, stdout);
3585 return !ferror(stdout);
3588 case WRITE_JSON_RAW:
3589 write_json_preamble(stdout);
3590 return !ferror(stdout);
3593 return !ferror(stdout);
3596 g_assert_not_reached();
3602 get_line_buf(size_t len)
3604 static char *line_bufp = NULL;
3605 static size_t line_buf_len = 256;
3606 size_t new_line_buf_len;
3608 for (new_line_buf_len = line_buf_len; len > new_line_buf_len;
3609 new_line_buf_len *= 2)
3611 if (line_bufp == NULL) {
3612 line_buf_len = new_line_buf_len;
3613 line_bufp = (char *)g_malloc(line_buf_len + 1);
3615 if (new_line_buf_len > line_buf_len) {
3616 line_buf_len = new_line_buf_len;
3617 line_bufp = (char *)g_realloc(line_bufp, line_buf_len + 1);
3624 put_string(char *dest, const char *str, size_t str_len)
3626 memcpy(dest, str, str_len);
3627 dest[str_len] = '\0';
3631 put_spaces_string(char *dest, const char *str, size_t str_len, size_t str_with_spaces)
3635 for (i = str_len; i < str_with_spaces; i++)
3638 put_string(dest, str, str_len);
3642 put_string_spaces(char *dest, const char *str, size_t str_len, size_t str_with_spaces)
3646 memcpy(dest, str, str_len);
3647 for (i = str_len; i < str_with_spaces; i++)
3650 dest[str_with_spaces] = '\0';
3654 print_columns(capture_file *cf, const epan_dissect_t *edt)
3661 col_item_t* col_item;
3662 gchar str_format[11];
3663 const color_filter_t *color_filter = NULL;
3665 line_bufp = get_line_buf(256);
3670 color_filter = edt->pi.fd->color_filter;
3672 for (i = 0; i < cf->cinfo.num_cols; i++) {
3673 col_item = &cf->cinfo.columns[i];
3674 /* Skip columns not marked as visible. */
3675 if (!get_column_visible(i))
3677 switch (col_item->col_fmt) {
3679 column_len = col_len = strlen(col_item->col_data);
3682 line_bufp = get_line_buf(buf_offset + column_len);
3683 put_spaces_string(line_bufp + buf_offset, col_item->col_data, col_len, column_len);
3689 case COL_ABS_YMD_TIME: /* XXX - wider */
3690 case COL_ABS_YDOY_TIME: /* XXX - wider */
3692 case COL_UTC_YMD_TIME: /* XXX - wider */
3693 case COL_UTC_YDOY_TIME: /* XXX - wider */
3694 column_len = col_len = strlen(col_item->col_data);
3695 if (column_len < 10)
3697 line_bufp = get_line_buf(buf_offset + column_len);
3698 put_spaces_string(line_bufp + buf_offset, col_item->col_data, col_len, column_len);
3704 case COL_DEF_DL_SRC:
3705 case COL_RES_DL_SRC:
3706 case COL_UNRES_DL_SRC:
3707 case COL_DEF_NET_SRC:
3708 case COL_RES_NET_SRC:
3709 case COL_UNRES_NET_SRC:
3710 column_len = col_len = strlen(col_item->col_data);
3711 if (column_len < 12)
3713 line_bufp = get_line_buf(buf_offset + column_len);
3714 put_spaces_string(line_bufp + buf_offset, col_item->col_data, col_len, column_len);
3720 case COL_DEF_DL_DST:
3721 case COL_RES_DL_DST:
3722 case COL_UNRES_DL_DST:
3723 case COL_DEF_NET_DST:
3724 case COL_RES_NET_DST:
3725 case COL_UNRES_NET_DST:
3726 column_len = col_len = strlen(col_item->col_data);
3727 if (column_len < 12)
3729 line_bufp = get_line_buf(buf_offset + column_len);
3730 put_string_spaces(line_bufp + buf_offset, col_item->col_data, col_len, column_len);
3734 column_len = strlen(col_item->col_data);
3735 line_bufp = get_line_buf(buf_offset + column_len);
3736 put_string(line_bufp + buf_offset, col_item->col_data, column_len);
3739 buf_offset += column_len;
3740 if (i != cf->cinfo.num_cols - 1) {
3742 * This isn't the last column, so we need to print a
3743 * separator between this column and the next.
3745 * If we printed a network source and are printing a
3746 * network destination of the same type next, separate
3747 * them with a UTF-8 right arrow; if we printed a network
3748 * destination and are printing a network source of the same
3749 * type next, separate them with a UTF-8 left arrow;
3750 * otherwise separate them with a space.
3752 * We add enough space to the buffer for " \xe2\x86\x90 "
3753 * or " \xe2\x86\x92 ", even if we're only adding " ".
3755 line_bufp = get_line_buf(buf_offset + 5);
3756 switch (col_item->col_fmt) {
3761 switch (cf->cinfo.columns[i+1].col_fmt) {
3766 g_snprintf(str_format, sizeof(str_format), "%s%s%s", delimiter_char, UTF8_RIGHTWARDS_ARROW, delimiter_char);
3767 put_string(line_bufp + buf_offset, str_format, 5);
3772 put_string(line_bufp + buf_offset, delimiter_char, 1);
3778 case COL_DEF_DL_SRC:
3779 case COL_RES_DL_SRC:
3780 case COL_UNRES_DL_SRC:
3781 switch (cf->cinfo.columns[i+1].col_fmt) {
3783 case COL_DEF_DL_DST:
3784 case COL_RES_DL_DST:
3785 case COL_UNRES_DL_DST:
3786 g_snprintf(str_format, sizeof(str_format), "%s%s%s", delimiter_char, UTF8_RIGHTWARDS_ARROW, delimiter_char);
3787 put_string(line_bufp + buf_offset, str_format, 5);
3792 put_string(line_bufp + buf_offset, delimiter_char, 1);
3798 case COL_DEF_NET_SRC:
3799 case COL_RES_NET_SRC:
3800 case COL_UNRES_NET_SRC:
3801 switch (cf->cinfo.columns[i+1].col_fmt) {
3803 case COL_DEF_NET_DST:
3804 case COL_RES_NET_DST:
3805 case COL_UNRES_NET_DST:
3806 g_snprintf(str_format, sizeof(str_format), "%s%s%s", delimiter_char, UTF8_RIGHTWARDS_ARROW, delimiter_char);
3807 put_string(line_bufp + buf_offset, str_format, 5);
3812 put_string(line_bufp + buf_offset, delimiter_char, 1);
3821 switch (cf->cinfo.columns[i+1].col_fmt) {
3826 g_snprintf(str_format, sizeof(str_format), "%s%s%s", delimiter_char, UTF8_LEFTWARDS_ARROW, delimiter_char);
3827 put_string(line_bufp + buf_offset, str_format, 5);
3832 put_string(line_bufp + buf_offset, delimiter_char, 1);
3838 case COL_DEF_DL_DST:
3839 case COL_RES_DL_DST:
3840 case COL_UNRES_DL_DST:
3841 switch (cf->cinfo.columns[i+1].col_fmt) {
3843 case COL_DEF_DL_SRC:
3844 case COL_RES_DL_SRC:
3845 case COL_UNRES_DL_SRC:
3846 g_snprintf(str_format, sizeof(str_format), "%s%s%s", delimiter_char, UTF8_LEFTWARDS_ARROW, delimiter_char);
3847 put_string(line_bufp + buf_offset, str_format, 5);
3852 put_string(line_bufp + buf_offset, delimiter_char, 1);
3858 case COL_DEF_NET_DST:
3859 case COL_RES_NET_DST:
3860 case COL_UNRES_NET_DST:
3861 switch (cf->cinfo.columns[i+1].col_fmt) {
3863 case COL_DEF_NET_SRC:
3864 case COL_RES_NET_SRC:
3865 case COL_UNRES_NET_SRC:
3866 g_snprintf(str_format, sizeof(str_format), "%s%s%s", delimiter_char, UTF8_LEFTWARDS_ARROW, delimiter_char);
3867 put_string(line_bufp + buf_offset, str_format, 5);
3872 put_string(line_bufp + buf_offset, delimiter_char, 1);
3879 put_string(line_bufp + buf_offset, delimiter_char, 1);
3886 if (dissect_color && color_filter != NULL)
3887 return print_line_color(print_stream, 0, line_bufp, &color_filter->fg_color, &color_filter->bg_color);
3889 return print_line(print_stream, 0, line_bufp);
3893 print_packet(capture_file *cf, epan_dissect_t *edt)
3895 if (print_summary || output_fields_has_cols(output_fields))
3896 /* Just fill in the columns. */
3897 epan_dissect_fill_in_columns(edt, FALSE, TRUE);
3899 /* Print summary columns and/or protocol tree */
3900 switch (output_action) {
3903 if (print_summary && !print_columns(cf, edt))
3905 if (print_details) {
3906 if (!proto_tree_print(print_details ? print_dissections_expanded : print_dissections_none,
3907 print_hex, edt, output_only_tables, print_stream))
3910 if (!print_line(print_stream, 0, separator))
3917 if (print_summary) {
3918 write_psml_columns(edt, stdout, dissect_color);
3919 return !ferror(stdout);
3921 if (print_details) {
3922 write_pdml_proto_tree(output_fields, protocolfilter, protocolfilter_flags, edt, &cf->cinfo, stdout, dissect_color);
3924 return !ferror(stdout);
3929 if (print_summary) {
3930 /*No non-verbose "fields" format */
3931 g_assert_not_reached();
3933 if (print_details) {
3934 write_fields_proto_tree(output_fields, edt, &cf->cinfo, stdout);
3936 return !ferror(stdout);
3942 g_assert_not_reached();
3943 if (print_details) {
3944 write_json_proto_tree(output_fields, print_dissections_expanded,
3945 print_hex, protocolfilter, protocolfilter_flags,
3946 edt, &cf->cinfo, node_children_grouper, stdout);
3947 return !ferror(stdout);
3951 case WRITE_JSON_RAW:
3953 g_assert_not_reached();
3954 if (print_details) {
3955 write_json_proto_tree(output_fields, print_dissections_none, TRUE,
3956 protocolfilter, protocolfilter_flags,
3957 edt, &cf->cinfo, node_children_grouper, stdout);
3958 return !ferror(stdout);
3963 write_ek_proto_tree(output_fields, print_summary, print_hex, protocolfilter,
3964 protocolfilter_flags, edt, &cf->cinfo, stdout);
3965 return !ferror(stdout);
3969 if (print_summary || print_details) {
3970 if (!print_line(print_stream, 0, ""))
3973 if (!print_hex_data(print_stream, edt))
3975 if (!print_line(print_stream, 0, separator))
3984 switch (output_action) {
3987 return print_finale(print_stream);
3991 write_pdml_finale(stdout);
3993 write_psml_finale(stdout);
3994 return !ferror(stdout);
3997 write_fields_finale(output_fields, stdout);
3998 return !ferror(stdout);
4001 case WRITE_JSON_RAW:
4002 write_json_finale(stdout);
4003 return !ferror(stdout);
4006 return !ferror(stdout);
4009 g_assert_not_reached();
4015 cf_close(capture_file *cf)
4017 g_free(cf->filename);
4021 cf_open(capture_file *cf, const char *fname, unsigned int type, gboolean is_tempfile, int *err)
4026 wth = wtap_open_offline(fname, type, err, &err_info, perform_two_pass_analysis);
4030 /* The open succeeded. Fill in the information for this file. */
4032 /* Create new epan session for dissection. */
4033 epan_free(cf->epan);
4034 cf->epan = tshark_epan_new(cf);
4036 cf->provider.wth = wth;
4037 cf->f_datalen = 0; /* not used, but set it anyway */
4039 /* Set the file name because we need it to set the follow stream filter.
4040 XXX - is that still true? We need it for other reasons, though,
4042 cf->filename = g_strdup(fname);
4044 /* Indicate whether it's a permanent or temporary file. */
4045 cf->is_tempfile = is_tempfile;
4047 /* No user changes yet. */
4048 cf->unsaved_changes = FALSE;
4050 cf->cd_t = wtap_file_type_subtype(cf->provider.wth);
4051 cf->open_type = type;
4053 cf->drops_known = FALSE;
4055 cf->snap = wtap_snapshot_length(cf->provider.wth);
4056 nstime_set_zero(&cf->elapsed_time);
4057 cf->provider.ref = NULL;
4058 cf->provider.prev_dis = NULL;
4059 cf->provider.prev_cap = NULL;
4061 cf->state = FILE_READ_IN_PROGRESS;
4063 wtap_set_cb_new_ipv4(cf->provider.wth, add_ipv4_name);
4064 wtap_set_cb_new_ipv6(cf->provider.wth, (wtap_new_ipv6_callback_t) add_ipv6_name);
4069 cfile_open_failure_message("TShark", fname, *err, err_info);
4074 show_print_file_io_error(int err)
4079 cmdarg_err("Not all the packets could be printed because there is "
4080 "no space left on the file system.");
4085 cmdarg_err("Not all the packets could be printed because you are "
4086 "too close to, or over your disk quota.");
4091 cmdarg_err("An error occurred while printing packets: %s.",
4098 * General errors and warnings are reported with an console message
4102 failure_warning_message(const char *msg_format, va_list ap)
4104 fprintf(stderr, "tshark: ");
4105 vfprintf(stderr, msg_format, ap);
4106 fprintf(stderr, "\n");
4110 * Open/create errors are reported with an console message in TShark.
4113 open_failure_message(const char *filename, int err, gboolean for_writing)
4115 fprintf(stderr, "tshark: ");
4116 fprintf(stderr, file_open_error_message(err, for_writing), filename);
4117 fprintf(stderr, "\n");
4121 * Read errors are reported with an console message in TShark.
4124 read_failure_message(const char *filename, int err)
4126 cmdarg_err("An error occurred while reading from the file \"%s\": %s.",
4127 filename, g_strerror(err));
4131 * Write errors are reported with an console message in TShark.
4134 write_failure_message(const char *filename, int err)
4136 cmdarg_err("An error occurred while writing to the file \"%s\": %s.",
4137 filename, g_strerror(err));
4140 static void reset_epan_mem(capture_file *cf,epan_dissect_t *edt, gboolean tree, gboolean visual)
4142 if (!epan_auto_reset || (cf->count < epan_auto_reset_count))
4145 fprintf(stderr, "resetting session.\n");
4147 epan_dissect_cleanup(edt);
4148 epan_free(cf->epan);
4150 cf->epan = tshark_epan_new(cf);
4151 epan_dissect_init(edt, cf->epan, tree, visual);
4156 * Report additional information for an error in command-line arguments.
4159 failure_message_cont(const char *msg_format, va_list ap)
4161 vfprintf(stderr, msg_format, ap);
4162 fprintf(stderr, "\n");
4166 * Editor modelines - https://www.wireshark.org/tools/modelines.html
4171 * indent-tabs-mode: nil
4174 * vi: set shiftwidth=2 tabstop=8 expandtab:
4175 * :indentSize=2:tabSize=8:noTabs=true:
git.samba.org / metze / wireshark / wip.git / blob