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+
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"
76 #include "ui/ws_ui_util.h"
77 #include "ui/decode_as_utils.h"
78 #include "ui/filter_files.h"
79 #include "ui/cli/tshark-tap.h"
80 #include "ui/cli/tap-exportobject.h"
81 #include "ui/tap_export_pdu.h"
82 #include "ui/dissect_opts.h"
83 #include "ui/failure_message.h"
84 #if defined(HAVE_LIBSMI)
85 #include "epan/oids.h"
87 #if defined(HAVE_GEOIP)
88 #include "epan/geoip_db.h"
90 #include "epan/register.h"
91 #include <epan/epan_dissect.h>
93 #include <epan/stat_tap_ui.h>
94 #include <epan/conversation_table.h>
95 #include <epan/srt_table.h>
96 #include <epan/rtd_table.h>
97 #include <epan/ex-opt.h>
98 #include <epan/exported_pdu.h>
100 #include "capture_opts.h"
102 #include "caputils/capture-pcap-util.h"
105 #include "caputils/capture_ifinfo.h"
107 #include "caputils/capture-wpcap.h"
108 #include <wsutil/os_version_info.h>
109 #include <wsutil/unicode-utils.h>
111 #include <capchild/capture_session.h>
112 #include <capchild/capture_sync.h>
113 #include <capture_info.h>
114 #endif /* HAVE_LIBPCAP */
116 #include <epan/funnel.h>
118 #include <wsutil/str_util.h>
119 #include <wsutil/utf8_entities.h>
126 #include <wsutil/plugins.h>
130 #define INVALID_OPTION 1
131 #define INVALID_INTERFACE 2
132 #define INVALID_FILE 2
133 #define INVALID_FILTER 2
134 #define INVALID_EXPORT 2
135 #define INVALID_CAPABILITY 2
136 #define INVALID_TAP 2
137 #define INVALID_DATA_LINK 2
138 #define INVALID_TIMESTAMP_TYPE 2
139 #define INVALID_CAPTURE 2
140 #define INIT_FAILED 2
143 * values 128..65535 are capture+dissect options, 65536 is used by
144 * ui/commandline.c, so start tshark-specific options 1000 after this
146 #define LONGOPT_COLOR (65536+1000)
147 #define LONGOPT_NO_DUPLICATE_KEYS (65536+1001)
150 #define tshark_debug(...) g_warning(__VA_ARGS__)
152 #define tshark_debug(...)
157 static guint32 cum_bytes;
158 static frame_data ref_frame;
159 static frame_data prev_dis_frame;
160 static frame_data prev_cap_frame;
162 static gboolean perform_two_pass_analysis;
163 static guint32 epan_auto_reset_count = 0;
164 static gboolean epan_auto_reset = FALSE;
167 * The way the packet decode is to be written.
170 WRITE_TEXT, /* summary or detail text */
171 WRITE_XML, /* PDML or PSML */
172 WRITE_FIELDS, /* User defined list of fields */
173 WRITE_JSON, /* JSON */
174 WRITE_JSON_RAW, /* JSON only raw hex */
175 WRITE_EK /* JSON bulk insert to Elasticsearch */
176 /* Add CSV and the like here */
179 static output_action_e output_action;
180 static gboolean do_dissection; /* TRUE if we have to dissect each packet */
181 static gboolean print_packet_info; /* TRUE if we're to print packet information */
182 static gboolean print_summary; /* TRUE if we're to print packet summary information */
183 static gboolean print_details; /* TRUE if we're to print packet details information */
184 static gboolean print_hex; /* TRUE if we're to print hex/ascci information */
185 static gboolean line_buffered;
186 static gboolean really_quiet = FALSE;
187 static gchar* delimiter_char = " ";
188 static gboolean dissect_color = FALSE;
190 static print_format_e print_format = PR_FMT_TEXT;
191 static print_stream_t *print_stream = NULL;
193 static output_fields_t* output_fields = NULL;
194 static gchar **protocolfilter = NULL;
195 static pf_flags protocolfilter_flags = PF_NONE;
197 static gboolean no_duplicate_keys = FALSE;
198 static proto_node_children_grouper_func node_children_grouper = proto_node_group_children_by_unique;
200 /* The line separator used between packets, changeable via the -S option */
201 static const char *separator = "";
203 static gboolean prefs_loaded = FALSE;
207 * TRUE if we're to print packet counts to keep track of captured packets.
209 static gboolean print_packet_counts;
211 static capture_options global_capture_opts;
212 static capture_session global_capture_session;
213 static info_data_t global_info_data;
216 static gboolean infodelay; /* if TRUE, don't print capture info in SIGINFO handler */
217 static gboolean infoprint; /* if TRUE, print capture info after clearing infodelay */
220 static gboolean capture(void);
221 static void report_counts(void);
223 static BOOL WINAPI capture_cleanup(DWORD);
225 static void capture_cleanup(int);
227 static void report_counts_siginfo(int);
231 #else /* HAVE_LIBPCAP */
233 static char *output_file_name;
235 #endif /* HAVE_LIBPCAP */
237 static void reset_epan_mem(capture_file *cf, epan_dissect_t *edt, gboolean tree, gboolean visual);
238 static gboolean process_cap_file(capture_file *, char *, int, gboolean, int, gint64);
239 static gboolean process_packet_single_pass(capture_file *cf,
240 epan_dissect_t *edt, gint64 offset, struct wtap_pkthdr *whdr,
241 const guchar *pd, guint tap_flags);
242 static void show_print_file_io_error(int err);
243 static gboolean write_preamble(capture_file *cf);
244 static gboolean print_packet(capture_file *cf, epan_dissect_t *edt);
245 static gboolean write_finale(void);
247 static void failure_warning_message(const char *msg_format, va_list ap);
248 static void open_failure_message(const char *filename, int err,
249 gboolean for_writing);
250 static void read_failure_message(const char *filename, int err);
251 static void write_failure_message(const char *filename, int err);
252 static void failure_message_cont(const char *msg_format, va_list ap);
254 static GHashTable *output_only_tables = NULL;
257 const char *sstr; /* The short string */
258 const char *lstr; /* The long string */
262 string_compare(gconstpointer a, gconstpointer b)
264 return strcmp(((const struct string_elem *)a)->sstr,
265 ((const struct string_elem *)b)->sstr);
269 string_elem_print(gpointer data, gpointer not_used _U_)
271 fprintf(stderr, " %s - %s\n",
272 ((struct string_elem *)data)->sstr,
273 ((struct string_elem *)data)->lstr);
277 list_capture_types(void) {
279 struct string_elem *captypes;
282 captypes = g_new(struct string_elem, WTAP_NUM_FILE_TYPES_SUBTYPES);
284 fprintf(stderr, "tshark: The available capture file types for the \"-F\" flag are:\n");
285 for (i = 0; i < WTAP_NUM_FILE_TYPES_SUBTYPES; i++) {
286 if (wtap_dump_can_open(i)) {
287 captypes[i].sstr = wtap_file_type_subtype_short_string(i);
288 captypes[i].lstr = wtap_file_type_subtype_string(i);
289 list = g_slist_insert_sorted(list, &captypes[i], string_compare);
292 g_slist_foreach(list, string_elem_print, NULL);
298 list_read_capture_types(void) {
300 struct string_elem *captypes;
302 const char *magic = "Magic-value-based";
303 const char *heuristic = "Heuristics-based";
305 /* this is a hack, but WTAP_NUM_FILE_TYPES_SUBTYPES is always >= number of open routines so we're safe */
306 captypes = g_new(struct string_elem, WTAP_NUM_FILE_TYPES_SUBTYPES);
308 fprintf(stderr, "tshark: The available read file types for the \"-X read_format:\" option are:\n");
309 for (i = 0; open_routines[i].name != NULL; i++) {
310 captypes[i].sstr = open_routines[i].name;
311 captypes[i].lstr = (open_routines[i].type == OPEN_INFO_MAGIC) ? magic : heuristic;
312 list = g_slist_insert_sorted(list, &captypes[i], string_compare);
314 g_slist_foreach(list, string_elem_print, NULL);
320 print_usage(FILE *output)
322 fprintf(output, "\n");
323 fprintf(output, "Usage: tshark [options] ...\n");
324 fprintf(output, "\n");
327 fprintf(output, "Capture interface:\n");
328 fprintf(output, " -i <interface> name or idx of interface (def: first non-loopback)\n");
329 fprintf(output, " -f <capture filter> packet filter in libpcap filter syntax\n");
330 #ifdef HAVE_PCAP_CREATE
331 fprintf(output, " -s <snaplen> packet snapshot length (def: appropriate maximum)\n");
333 fprintf(output, " -s <snaplen> packet snapshot length (def: %u)\n", WTAP_MAX_PACKET_SIZE_STANDARD);
335 fprintf(output, " -p don't capture in promiscuous mode\n");
336 #ifdef HAVE_PCAP_CREATE
337 fprintf(output, " -I capture in monitor mode, if available\n");
339 #ifdef CAN_SET_CAPTURE_BUFFER_SIZE
340 fprintf(output, " -B <buffer size> size of kernel buffer (def: %dMB)\n", DEFAULT_CAPTURE_BUFFER_SIZE);
342 fprintf(output, " -y <link type> link layer type (def: first appropriate)\n");
343 fprintf(output, " --time-stamp-type <type> timestamp method for interface\n");
344 fprintf(output, " -D print list of interfaces and exit\n");
345 fprintf(output, " -L print list of link-layer types of iface and exit\n");
346 fprintf(output, " --list-time-stamp-types print list of timestamp types for iface and exit\n");
347 fprintf(output, "\n");
348 fprintf(output, "Capture stop conditions:\n");
349 fprintf(output, " -c <packet count> stop after n packets (def: infinite)\n");
350 fprintf(output, " -a <autostop cond.> ... duration:NUM - stop after NUM seconds\n");
351 fprintf(output, " filesize:NUM - stop this file after NUM KB\n");
352 fprintf(output, " files:NUM - stop after NUM files\n");
353 /*fprintf(output, "\n");*/
354 fprintf(output, "Capture output:\n");
355 fprintf(output, " -b <ringbuffer opt.> ... duration:NUM - switch to next file after NUM secs\n");
356 fprintf(output, " interval:NUM - create time intervals of NUM secs\n");
357 fprintf(output, " filesize:NUM - switch to next file after NUM KB\n");
358 fprintf(output, " files:NUM - ringbuffer: replace after NUM files\n");
359 #endif /* HAVE_LIBPCAP */
360 #ifdef HAVE_PCAP_REMOTE
361 fprintf(output, "RPCAP options:\n");
362 fprintf(output, " -A <user>:<password> use RPCAP password authentication\n");
364 /*fprintf(output, "\n");*/
365 fprintf(output, "Input file:\n");
366 fprintf(output, " -r <infile> set the filename to read from (- to read from stdin)\n");
368 fprintf(output, "\n");
369 fprintf(output, "Processing:\n");
370 fprintf(output, " -2 perform a two-pass analysis\n");
371 fprintf(output, " -M <packet count> perform session auto reset\n");
372 fprintf(output, " -R <read filter> packet Read filter in Wireshark display filter syntax\n");
373 fprintf(output, " (requires -2)\n");
374 fprintf(output, " -Y <display filter> packet displaY filter in Wireshark display filter\n");
375 fprintf(output, " syntax\n");
376 fprintf(output, " -n disable all name resolutions (def: all enabled)\n");
377 fprintf(output, " -N <name resolve flags> enable specific name resolution(s): \"mnNtCd\"\n");
378 fprintf(output, " -d %s ...\n", DECODE_AS_ARG_TEMPLATE);
379 fprintf(output, " \"Decode As\", see the man page for details\n");
380 fprintf(output, " Example: tcp.port==8888,http\n");
381 fprintf(output, " -H <hosts file> read a list of entries from a hosts file, which will\n");
382 fprintf(output, " then be written to a capture file. (Implies -W n)\n");
383 fprintf(output, " --enable-protocol <proto_name>\n");
384 fprintf(output, " enable dissection of proto_name\n");
385 fprintf(output, " --disable-protocol <proto_name>\n");
386 fprintf(output, " disable dissection of proto_name\n");
387 fprintf(output, " --enable-heuristic <short_name>\n");
388 fprintf(output, " enable dissection of heuristic protocol\n");
389 fprintf(output, " --disable-heuristic <short_name>\n");
390 fprintf(output, " disable dissection of heuristic protocol\n");
392 /*fprintf(output, "\n");*/
393 fprintf(output, "Output:\n");
394 fprintf(output, " -w <outfile|-> write packets to a pcap-format file named \"outfile\"\n");
395 fprintf(output, " (or to the standard output for \"-\")\n");
396 fprintf(output, " -C <config profile> start with specified configuration profile\n");
397 fprintf(output, " -F <output file type> set the output file type, default is pcapng\n");
398 fprintf(output, " an empty \"-F\" option will list the file types\n");
399 fprintf(output, " -V add output of packet tree (Packet Details)\n");
400 fprintf(output, " -O <protocols> Only show packet details of these protocols, comma\n");
401 fprintf(output, " separated\n");
402 fprintf(output, " -P print packet summary even when writing to a file\n");
403 fprintf(output, " -S <separator> the line separator to print between packets\n");
404 fprintf(output, " -x add output of hex and ASCII dump (Packet Bytes)\n");
405 fprintf(output, " -T pdml|ps|psml|json|jsonraw|ek|tabs|text|fields|?\n");
406 fprintf(output, " format of text output (def: text)\n");
407 fprintf(output, " -j <protocolfilter> protocols layers filter if -T ek|pdml|json selected\n");
408 fprintf(output, " (e.g. \"ip ip.flags text\", filter does not expand child\n");
409 fprintf(output, " nodes, unless child is specified also in the filter)\n");
410 fprintf(output, " -J <protocolfilter> top level protocol filter if -T ek|pdml|json selected\n");
411 fprintf(output, " (e.g. \"http tcp\", filter which expands all child nodes)\n");
412 fprintf(output, " -e <field> field to print if -Tfields selected (e.g. tcp.port,\n");
413 fprintf(output, " _ws.col.Info)\n");
414 fprintf(output, " this option can be repeated to print multiple fields\n");
415 fprintf(output, " -E<fieldsoption>=<value> set options for output when -Tfields selected:\n");
416 fprintf(output, " bom=y|n print a UTF-8 BOM\n");
417 fprintf(output, " header=y|n switch headers on and off\n");
418 fprintf(output, " separator=/t|/s|<char> select tab, space, printable character as separator\n");
419 fprintf(output, " occurrence=f|l|a print first, last or all occurrences of each field\n");
420 fprintf(output, " aggregator=,|/s|<char> select comma, space, printable character as\n");
421 fprintf(output, " aggregator\n");
422 fprintf(output, " quote=d|s|n select double, single, no quotes for values\n");
423 fprintf(output, " -t a|ad|d|dd|e|r|u|ud|? output format of time stamps (def: r: rel. to first)\n");
424 fprintf(output, " -u s|hms output format of seconds (def: s: seconds)\n");
425 fprintf(output, " -l flush standard output after each packet\n");
426 fprintf(output, " -q be more quiet on stdout (e.g. when using statistics)\n");
427 fprintf(output, " -Q only log true errors to stderr (quieter than -q)\n");
428 fprintf(output, " -g enable group read access on the output file(s)\n");
429 fprintf(output, " -W n Save extra information in the file, if supported.\n");
430 fprintf(output, " n = write network address resolution information\n");
431 fprintf(output, " -X <key>:<value> eXtension options, see the man page for details\n");
432 fprintf(output, " -U tap_name PDUs export mode, see the man page for details\n");
433 fprintf(output, " -z <statistics> various statistics, see the man page for details\n");
434 fprintf(output, " --capture-comment <comment>\n");
435 fprintf(output, " add a capture comment to the newly created\n");
436 fprintf(output, " output file (only for pcapng)\n");
437 fprintf(output, " --export-objects <protocol>,<destdir> save exported objects for a protocol to\n");
438 fprintf(output, " a directory named \"destdir\"\n");
439 fprintf(output, " --color color output text similarly to the Wireshark GUI,\n");
440 fprintf(output, " requires a terminal with 24-bit color support\n");
441 fprintf(output, " Also supplies color attributes to pdml and psml formats\n");
442 fprintf(output, " (Note that attributes are nonstandard)\n");
443 fprintf(output, " --no-duplicate-keys If -T json is specified, merge duplicate keys in an object\n");
444 fprintf(output, " into a single key with as value a json array containing all\n");
445 fprintf(output, " values");
447 fprintf(output, "\n");
448 fprintf(output, "Miscellaneous:\n");
449 fprintf(output, " -h display this help and exit\n");
450 fprintf(output, " -v display version info and exit\n");
451 fprintf(output, " -o <name>:<value> ... override preference setting\n");
452 fprintf(output, " -K <keytab> keytab file to use for kerberos decryption\n");
453 fprintf(output, " -G [report] dump one of several available reports and exit\n");
454 fprintf(output, " default report=\"fields\"\n");
455 fprintf(output, " use \"-G help\" for more help\n");
457 fprintf(output, "\n");
458 fprintf(output, "WARNING: dumpcap will enable kernel BPF JIT compiler if available.\n");
459 fprintf(output, "You might want to reset it\n");
460 fprintf(output, "By doing \"echo 0 > /proc/sys/net/core/bpf_jit_enable\"\n");
466 glossary_option_help(void)
472 fprintf(output, "TShark (Wireshark) %s\n", get_ws_vcs_version_info());
474 fprintf(output, "\n");
475 fprintf(output, "Usage: tshark -G [report]\n");
476 fprintf(output, "\n");
477 fprintf(output, "Glossary table reports:\n");
478 fprintf(output, " -G column-formats dump column format codes and exit\n");
479 fprintf(output, " -G decodes dump \"layer type\"/\"decode as\" associations and exit\n");
480 fprintf(output, " -G dissector-tables dump dissector table names, types, and properties\n");
481 fprintf(output, " -G fieldcount dump count of header fields and exit\n");
482 fprintf(output, " -G fields dump fields glossary and exit\n");
483 fprintf(output, " -G ftypes dump field type basic and descriptive names\n");
484 fprintf(output, " -G heuristic-decodes dump heuristic dissector tables\n");
485 fprintf(output, " -G plugins dump installed plugins and exit\n");
486 fprintf(output, " -G protocols dump protocols in registration database and exit\n");
487 fprintf(output, " -G values dump value, range, true/false strings and exit\n");
488 fprintf(output, "\n");
489 fprintf(output, "Preference reports:\n");
490 fprintf(output, " -G currentprefs dump current preferences and exit\n");
491 fprintf(output, " -G defaultprefs dump default preferences and exit\n");
492 fprintf(output, " -G folders dump about:folders\n");
493 fprintf(output, "\n");
497 tshark_log_handler (const gchar *log_domain, GLogLevelFlags log_level,
498 const gchar *message, gpointer user_data)
500 /* ignore log message, if log_level isn't interesting based
501 upon the console log preferences.
502 If the preferences haven't been loaded yet, display the
505 The default console_log_level preference value is such that only
506 ERROR, CRITICAL and WARNING level messages are processed;
507 MESSAGE, INFO and DEBUG level messages are ignored.
509 XXX: Aug 07, 2009: Prior tshark g_log code was hardwired to process only
510 ERROR and CRITICAL level messages so the current code is a behavioral
511 change. The current behavior is the same as in Wireshark.
513 if (prefs_loaded && (log_level & G_LOG_LEVEL_MASK & prefs.console_log_level) == 0) {
517 g_log_default_handler(log_domain, log_level, message, user_data);
522 print_current_user(void) {
523 gchar *cur_user, *cur_group;
525 if (started_with_special_privs()) {
526 cur_user = get_cur_username();
527 cur_group = get_cur_groupname();
528 fprintf(stderr, "Running as user \"%s\" and group \"%s\".",
529 cur_user, cur_group);
532 if (running_with_special_privs()) {
533 fprintf(stderr, " This could be dangerous.");
535 fprintf(stderr, "\n");
540 get_tshark_compiled_version_info(GString *str)
542 /* Capture libraries */
543 get_compiled_caplibs_version(str);
547 get_tshark_runtime_version_info(GString *str)
550 /* Capture libraries */
551 g_string_append(str, ", ");
552 get_runtime_caplibs_version(str);
555 /* stuff used by libwireshark */
556 epan_get_runtime_version_info(str);
562 const char *constpath;
564 #if defined(HAVE_LIBSMI) || defined(HAVE_GEOIP) || defined(HAVE_EXTCAP)
572 * Fetching the "File" dialogs folder not implemented.
573 * This is arguably just a pwd for a ui/cli .
577 printf("%-21s\t%s\n", "Temp:", g_get_tmp_dir());
580 path = get_persconffile_path("", FALSE);
581 printf("%-21s\t%s\n", "Personal configuration:", path);
585 constpath = get_datafile_dir();
586 if (constpath != NULL) {
587 printf("%-21s\t%s\n", "Global configuration:", constpath);
591 constpath = get_systemfile_dir();
592 printf("%-21s\t%s\n", "System:", constpath);
595 constpath = get_progfile_dir();
596 printf("%-21s\t%s\n", "Program:", constpath);
600 printf("%-21s\t%s\n", "Personal Plugins:", get_plugins_pers_dir_with_version());
603 printf("%-21s\t%s\n", "Global Plugins:", get_plugins_dir_with_version());
607 /* pers lua plugins */
608 printf("%-21s\t%s\n", "Personal Lua Plugins:", get_plugins_pers_dir());
610 /* global lua plugins */
611 printf("%-21s\t%s\n", "Global Lua Plugins:", get_plugins_dir());
616 constpath = get_extcap_dir();
618 resultArray = g_strsplit(constpath, G_SEARCHPATH_SEPARATOR_S, 10);
619 for(i = 0; resultArray[i]; i++)
620 printf("%-21s\t%s\n", "Extcap path:", g_strstrip(resultArray[i]));
622 g_strfreev(resultArray);
627 path = geoip_db_get_paths();
629 resultArray = g_strsplit(path, G_SEARCHPATH_SEPARATOR_S, 10);
631 for(i = 0; resultArray[i]; i++)
632 printf("%-21s\t%s\n", "GeoIP path:", g_strstrip(resultArray[i]));
634 g_strfreev(resultArray);
640 path = oid_get_default_mib_path();
641 resultArray = g_strsplit(path, G_SEARCHPATH_SEPARATOR_S, 10);
643 for(i = 0; resultArray[i]; i++)
644 printf("%-21s\t%s\n", "MIB/PIB path:", g_strstrip(resultArray[i]));
646 g_strfreev(resultArray);
653 main(int argc, char *argv[])
655 GString *comp_info_str;
656 GString *runtime_info_str;
657 char *init_progfile_dir_error;
659 static const struct option long_options[] = {
660 {"help", no_argument, NULL, 'h'},
661 {"version", no_argument, NULL, 'v'},
662 LONGOPT_CAPTURE_COMMON
663 LONGOPT_DISSECT_COMMON
664 {"print", no_argument, NULL, 'P'},
665 {"export-objects", required_argument, NULL, LONGOPT_EXPORT_OBJECTS},
666 {"color", no_argument, NULL, LONGOPT_COLOR},
667 {"no-duplicate-keys", no_argument, NULL, LONGOPT_NO_DUPLICATE_KEYS},
670 gboolean arg_error = FALSE;
678 volatile gboolean success;
679 volatile int exit_status = EXIT_SUCCESS;
681 int caps_queries = 0;
682 gboolean start_capture = FALSE;
686 gboolean capture_option_specified = FALSE;
688 gboolean quiet = FALSE;
689 #ifdef PCAP_NG_DEFAULT
690 volatile int out_file_type = WTAP_FILE_TYPE_SUBTYPE_PCAPNG;
692 volatile int out_file_type = WTAP_FILE_TYPE_SUBTYPE_PCAP;
694 volatile gboolean out_file_name_res = FALSE;
695 volatile int in_file_type = WTAP_TYPE_AUTO;
696 gchar *volatile cf_name = NULL;
697 gchar *rfilter = NULL;
698 gchar *dfilter = NULL;
699 #ifdef HAVE_PCAP_OPEN_DEAD
700 struct bpf_program fcode;
702 dfilter_t *rfcode = NULL;
703 dfilter_t *dfcode = NULL;
707 gchar *output_only = NULL;
708 gchar *volatile pdu_export_arg = NULL;
709 const char *volatile exp_pdu_filename = NULL;
710 exp_pdu_t exp_pdu_tap_data;
713 * The leading + ensures that getopt_long() does not permute the argv[]
716 * We have to make sure that the first getopt_long() preserves the content
717 * of argv[] for the subsequent getopt_long() call.
719 * We use getopt_long() in both cases to ensure that we're using a routine
720 * whose permutation behavior we can control in the same fashion on all
721 * platforms, and so that, if we ever need to process a long argument before
722 * doing further initialization, we can do so.
724 * Glibc and Solaris libc document that a leading + disables permutation
725 * of options, regardless of whether POSIXLY_CORRECT is set or not; *BSD
726 * and macOS don't document it, but do so anyway.
728 * We do *not* use a leading - because the behavior of a leading - is
729 * platform-dependent.
731 #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:"
733 static const char optstring[] = OPTSTRING;
735 tshark_debug("tshark started with %d args", argc);
737 /* Set the C-language locale to the native environment. */
738 setlocale(LC_ALL, "");
740 cmdarg_err_init(failure_warning_message, failure_message_cont);
743 arg_list_utf_16to8(argc, argv);
744 create_app_running_mutex();
745 #if !GLIB_CHECK_VERSION(2,31,0)
751 * Get credential information for later use, and drop privileges
752 * before doing anything else.
753 * Let the user know if anything happened.
755 init_process_policies();
756 relinquish_special_privs_perm();
757 print_current_user();
760 * Attempt to get the pathname of the directory containing the
763 init_progfile_dir_error = init_progfile_dir(argv[0], main);
764 if (init_progfile_dir_error != NULL) {
766 "tshark: Can't get pathname of directory containing the tshark program: %s.\n"
767 "It won't be possible to capture traffic.\n"
768 "Report this to the Wireshark developers.",
769 init_progfile_dir_error);
770 g_free(init_progfile_dir_error);
773 initialize_funnel_ops();
776 ws_init_dll_search_path();
778 /* Load wpcap if possible. Do this before collecting the run-time version information */
781 /* Warn the user if npf.sys isn't loaded. */
782 if (!npf_sys_is_running() && get_windows_major_version() >= 6) {
783 fprintf(stderr, "The NPF driver isn't running. You may have trouble "
784 "capturing or\nlisting interfaces.\n");
786 #endif /* HAVE_LIBPCAP */
789 /* Get the compile-time version information string */
790 comp_info_str = get_compiled_version_info(get_tshark_compiled_version_info,
791 epan_get_compiled_version_info);
793 /* Get the run-time version information string */
794 runtime_info_str = get_runtime_version_info(get_tshark_runtime_version_info);
796 /* Add it to the information to be reported on a crash. */
797 ws_add_crash_info("TShark (Wireshark) %s\n"
802 get_ws_vcs_version_info(), comp_info_str->str, runtime_info_str->str);
803 g_string_free(comp_info_str, TRUE);
804 g_string_free(runtime_info_str, TRUE);
806 /* Fail sometimes. Useful for testing fuzz scripts. */
807 /* if (g_random_int_range(0, 100) < 5) abort(); */
810 * In order to have the -X opts assigned before the wslua machine starts
811 * we need to call getopt_long before epan_init() gets called.
813 * In order to handle, for example, -o options, we also need to call it
814 * *after* epan_init() gets called, so that the dissectors have had a
815 * chance to register their preferences.
817 * XXX - can we do this all with one getopt_long() call, saving the
818 * arguments we can't handle until after initializing libwireshark,
819 * and then process them after initializing libwireshark?
823 while ((opt = getopt_long(argc, argv, optstring, long_options, NULL)) != -1) {
825 case 'C': /* Configuration Profile */
826 if (profile_exists (optarg, FALSE)) {
827 set_profile_name (optarg);
829 cmdarg_err("Configuration Profile \"%s\" does not exist", optarg);
830 exit_status = INVALID_OPTION;
834 case 'P': /* Print packet summary info even when writing to a file */
835 print_packet_info = TRUE;
836 print_summary = TRUE;
838 case 'O': /* Only output these protocols */
839 output_only = g_strdup(optarg);
841 case 'V': /* Verbose */
842 print_details = TRUE;
843 print_packet_info = TRUE;
845 case 'x': /* Print packet data in hex (and ASCII) */
847 /* The user asked for hex output, so let's ensure they get it,
848 * even if they're writing to a file.
850 print_packet_info = TRUE;
860 /** Send All g_log messages to our own handler **/
864 G_LOG_LEVEL_CRITICAL|
869 G_LOG_FLAG_FATAL|G_LOG_FLAG_RECURSION;
871 g_log_set_handler(NULL,
872 (GLogLevelFlags)log_flags,
873 tshark_log_handler, NULL /* user_data */);
874 g_log_set_handler(LOG_DOMAIN_MAIN,
875 (GLogLevelFlags)log_flags,
876 tshark_log_handler, NULL /* user_data */);
879 g_log_set_handler(LOG_DOMAIN_CAPTURE,
880 (GLogLevelFlags)log_flags,
881 tshark_log_handler, NULL /* user_data */);
882 g_log_set_handler(LOG_DOMAIN_CAPTURE_CHILD,
883 (GLogLevelFlags)log_flags,
884 tshark_log_handler, NULL /* user_data */);
887 init_report_message(failure_warning_message, failure_warning_message,
888 open_failure_message, read_failure_message,
889 write_failure_message);
892 capture_opts_init(&global_capture_opts);
893 capture_session_init(&global_capture_session, &cfile);
896 timestamp_set_type(TS_RELATIVE);
897 timestamp_set_precision(TS_PREC_AUTO);
898 timestamp_set_seconds_type(TS_SECONDS_DEFAULT);
903 /* Register all the plugin types we have. */
904 epan_register_plugin_types(); /* Types known to libwireshark */
906 /* Scan for plugins. This does *not* call their registration routines;
907 that's done later. */
908 scan_plugins(REPORT_LOAD_FAILURE);
910 /* Register all libwiretap plugin modules. */
911 register_all_wiretap_modules();
914 /* Register all dissectors; we must do this before checking for the
915 "-G" flag, as the "-G" flag dumps information registered by the
916 dissectors, and we must do it before we read the preferences, in
917 case any dissectors register preferences. */
918 if (!epan_init(register_all_protocols, register_all_protocol_handoffs, NULL,
920 exit_status = INIT_FAILED;
924 /* Register all tap listeners; we do this before we parse the arguments,
925 as the "-z" argument can specify a registered tap. */
927 /* we register the plugin taps before the other taps because
928 stats_tree taps plugins will be registered as tap listeners
929 by stats_tree_stat.c and need to registered before that */
931 register_all_plugin_tap_listeners();
934 extcap_register_preferences();
936 register_all_tap_listeners();
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 new_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. */
1381 exit_status = EXIT_SUCCESS;
1383 case 'O': /* Only output these protocols */
1384 /* already processed; just ignore it now */
1386 case 'V': /* Verbose */
1387 /* already processed; just ignore it now */
1389 case 'x': /* Print packet data in hex (and ASCII) */
1390 /* already processed; just ignore it now */
1393 /* already processed; just ignore it now */
1399 /* We won't call the init function for the stat this soon
1400 as it would disallow MATE's fields (which are registered
1401 by the preferences set callback) from being used as
1402 part of a tap filter. Instead, we just add the argument
1403 to a list of stat arguments. */
1404 if (strcmp("help", optarg) == 0) {
1405 fprintf(stderr, "tshark: The available statistics for the \"-z\" option are:\n");
1406 list_stat_cmd_args();
1407 exit_status = EXIT_SUCCESS;
1410 if (!process_stat_cmd_arg(optarg)) {
1411 cmdarg_err("Invalid -z argument \"%s\"; it must be one of:", optarg);
1412 list_stat_cmd_args();
1413 exit_status = INVALID_OPTION;
1417 case 'd': /* Decode as rule */
1418 case 'K': /* Kerberos keytab file */
1419 case 'n': /* No name resolution */
1420 case 'N': /* Select what types of addresses/port #s to resolve */
1421 case 't': /* Time stamp type */
1422 case 'u': /* Seconds type */
1423 case LONGOPT_DISABLE_PROTOCOL: /* disable dissection of protocol */
1424 case LONGOPT_ENABLE_HEURISTIC: /* enable heuristic dissection of protocol */
1425 case LONGOPT_DISABLE_HEURISTIC: /* disable heuristic dissection of protocol */
1426 case LONGOPT_ENABLE_PROTOCOL: /* enable dissection of protocol (that is disabled by default) */
1427 if (!dissect_opts_handle_opt(opt, optarg)) {
1428 exit_status = INVALID_OPTION;
1432 case LONGOPT_EXPORT_OBJECTS: /* --export-objects */
1433 if (strcmp("help", optarg) == 0) {
1434 fprintf(stderr, "tshark: The available export object types for the \"--export-objects\" option are:\n");
1435 eo_list_object_types();
1436 exit_status = EXIT_SUCCESS;
1439 if (!eo_tap_opt_add(optarg)) {
1440 exit_status = INVALID_OPTION;
1444 case LONGOPT_COLOR: /* print in color where appropriate */
1445 dissect_color = TRUE;
1447 case LONGOPT_NO_DUPLICATE_KEYS:
1448 no_duplicate_keys = TRUE;
1449 node_children_grouper = proto_node_group_children_by_json_key;
1452 case '?': /* Bad flag - print usage message */
1455 list_capture_types();
1458 print_usage(stderr);
1460 exit_status = INVALID_OPTION;
1467 * Print packet summary information is the default if neither -V or -x
1468 * were specified. Note that this is new behavior, which allows for the
1469 * possibility of printing only hex/ascii output without necessarily
1470 * requiring that either the summary or details be printed too.
1472 if (!print_summary && !print_details && !print_hex)
1473 print_summary = TRUE;
1475 if (no_duplicate_keys && output_action != WRITE_JSON && output_action != WRITE_JSON_RAW) {
1476 cmdarg_err("--no-duplicate-keys can only be used with \"-T json\" and \"-T jsonraw\"");
1477 exit_status = INVALID_OPTION;
1481 /* If we specified output fields, but not the output field type... */
1482 if ((WRITE_FIELDS != output_action && WRITE_XML != output_action && WRITE_JSON != output_action && WRITE_EK != output_action) && 0 != output_fields_num_fields(output_fields)) {
1483 cmdarg_err("Output fields were specified with \"-e\", "
1484 "but \"-Tek, -Tfields, -Tjson or -Tpdml\" was not specified.");
1485 exit_status = INVALID_OPTION;
1487 } else if (WRITE_FIELDS == output_action && 0 == output_fields_num_fields(output_fields)) {
1488 cmdarg_err("\"-Tfields\" was specified, but no fields were "
1489 "specified with \"-e\".");
1491 exit_status = INVALID_OPTION;
1495 if (dissect_color) {
1496 if (!color_filters_init(&err_msg, NULL)) {
1497 fprintf(stderr, "%s\n", err_msg);
1502 /* If no capture filter or display filter has been specified, and there are
1503 still command-line arguments, treat them as the tokens of a capture
1504 filter (if no "-r" flag was specified) or a display filter (if a "-r"
1505 flag was specified. */
1506 if (optind < argc) {
1507 if (cf_name != NULL) {
1508 if (dfilter != NULL) {
1509 cmdarg_err("Display filters were specified both with \"-d\" "
1510 "and with additional command-line arguments.");
1511 exit_status = INVALID_OPTION;
1514 dfilter = get_args_as_string(argc, argv, optind);
1519 if (global_capture_opts.default_options.cfilter) {
1520 cmdarg_err("A default capture filter was specified both with \"-f\""
1521 " and with additional command-line arguments.");
1522 exit_status = INVALID_OPTION;
1525 for (i = 0; i < global_capture_opts.ifaces->len; i++) {
1526 interface_options *interface_opts;
1527 interface_opts = &g_array_index(global_capture_opts.ifaces, interface_options, i);
1528 if (interface_opts->cfilter == NULL) {
1529 interface_opts->cfilter = get_args_as_string(argc, argv, optind);
1531 cmdarg_err("A capture filter was specified both with \"-f\""
1532 " and with additional command-line arguments.");
1533 exit_status = INVALID_OPTION;
1537 global_capture_opts.default_options.cfilter = get_args_as_string(argc, argv, optind);
1539 capture_option_specified = TRUE;
1545 if (!global_capture_opts.saving_to_file) {
1546 /* We're not saving the capture to a file; if "-q" wasn't specified,
1547 we should print packet information */
1549 print_packet_info = TRUE;
1551 /* We're saving to a file; if we're writing to the standard output.
1552 and we'll also be writing dissected packets to the standard
1553 output, reject the request. At best, we could redirect that
1554 to the standard error; we *can't* write both to the standard
1555 output and have either of them be useful. */
1556 if (strcmp(global_capture_opts.save_file, "-") == 0 && print_packet_info) {
1557 cmdarg_err("You can't write both raw packet data and dissected packets"
1558 " to the standard output.");
1559 exit_status = INVALID_OPTION;
1564 /* We're not saving the capture to a file; if "-q" wasn't specified,
1565 we should print packet information */
1567 print_packet_info = TRUE;
1570 #ifndef HAVE_LIBPCAP
1571 if (capture_option_specified)
1572 cmdarg_err("This version of TShark was not built with support for capturing packets.");
1575 print_usage(stderr);
1576 exit_status = INVALID_OPTION;
1581 if (output_action != WRITE_TEXT && output_action != WRITE_JSON && output_action != WRITE_JSON_RAW && output_action != WRITE_EK) {
1582 cmdarg_err("Raw packet hex data can only be printed as text, PostScript, JSON, JSONRAW or EK JSON");
1583 exit_status = INVALID_OPTION;
1588 if (output_only != NULL) {
1591 if (!print_details) {
1592 cmdarg_err("-O requires -V");
1593 exit_status = INVALID_OPTION;
1597 output_only_tables = g_hash_table_new (g_str_hash, g_str_equal);
1598 for (ps = strtok (output_only, ","); ps; ps = strtok (NULL, ",")) {
1599 g_hash_table_insert(output_only_tables, (gpointer)ps, (gpointer)ps);
1603 if (rfilter != NULL && !perform_two_pass_analysis) {
1604 cmdarg_err("-R without -2 is deprecated. For single-pass filtering use -Y.");
1605 exit_status = INVALID_OPTION;
1611 /* We're supposed to list the link-layer/timestamp types for an interface;
1612 did the user also specify a capture file to be read? */
1614 /* Yes - that's bogus. */
1615 cmdarg_err("You can't specify %s and a capture file to be read.",
1616 caps_queries & CAPS_QUERY_LINK_TYPES ? "-L" : "--list-time-stamp-types");
1617 exit_status = INVALID_OPTION;
1620 /* No - did they specify a ring buffer option? */
1621 if (global_capture_opts.multi_files_on) {
1622 cmdarg_err("Ring buffer requested, but a capture isn't being done.");
1623 exit_status = INVALID_OPTION;
1629 * "-r" was specified, so we're reading a capture file.
1630 * Capture options don't apply here.
1633 /* We don't support capture filters when reading from a capture file
1634 (the BPF compiler doesn't support all link-layer types that we
1635 support in capture files we read). */
1636 if (global_capture_opts.default_options.cfilter) {
1637 cmdarg_err("Only read filters, not capture filters, "
1638 "can be specified when reading a capture file.");
1639 exit_status = INVALID_OPTION;
1642 if (global_capture_opts.multi_files_on) {
1643 cmdarg_err("Multiple capture files requested, but "
1644 "a capture isn't being done.");
1645 exit_status = INVALID_OPTION;
1648 if (global_capture_opts.has_file_duration) {
1649 cmdarg_err("Switching capture files after a time period was specified, but "
1650 "a capture isn't being done.");
1651 exit_status = INVALID_OPTION;
1654 if (global_capture_opts.has_file_interval) {
1655 cmdarg_err("Switching capture files after a time interval was specified, but "
1656 "a capture isn't being done.");
1657 exit_status = INVALID_OPTION;
1660 if (global_capture_opts.has_ring_num_files) {
1661 cmdarg_err("A ring buffer of capture files was specified, but "
1662 "a capture isn't being done.");
1663 exit_status = INVALID_OPTION;
1666 if (global_capture_opts.has_autostop_files) {
1667 cmdarg_err("A maximum number of capture files was specified, but "
1668 "a capture isn't being done.");
1669 exit_status = INVALID_OPTION;
1672 if (global_capture_opts.capture_comment) {
1673 cmdarg_err("A capture comment was specified, but "
1674 "a capture isn't being done.\nThere's no support for adding "
1675 "a capture comment to an existing capture file.");
1676 exit_status = INVALID_OPTION;
1680 /* Note: TShark now allows the restriction of a _read_ file by packet count
1681 * and byte count as well as a write file. Other autostop options remain valid
1682 * only for a write file.
1684 if (global_capture_opts.has_autostop_duration) {
1685 cmdarg_err("A maximum capture time was specified, but "
1686 "a capture isn't being done.");
1687 exit_status = INVALID_OPTION;
1692 * "-r" wasn't specified, so we're doing a live capture.
1694 if (perform_two_pass_analysis) {
1695 /* Two-pass analysis doesn't work with live capture since it requires us
1696 * to buffer packets until we've read all of them, but a live capture
1697 * has no useful/meaningful definition of "all" */
1698 cmdarg_err("Live captures do not support two-pass analysis.");
1699 exit_status = INVALID_OPTION;
1703 if (global_capture_opts.saving_to_file) {
1704 /* They specified a "-w" flag, so we'll be saving to a capture file. */
1706 /* When capturing, we only support writing pcap or pcap-ng format. */
1707 if (out_file_type != WTAP_FILE_TYPE_SUBTYPE_PCAP &&
1708 out_file_type != WTAP_FILE_TYPE_SUBTYPE_PCAPNG) {
1709 cmdarg_err("Live captures can only be saved in pcap or pcapng format.");
1710 exit_status = INVALID_OPTION;
1713 if (global_capture_opts.capture_comment &&
1714 out_file_type != WTAP_FILE_TYPE_SUBTYPE_PCAPNG) {
1715 cmdarg_err("A capture comment can only be written to a pcapng file.");
1716 exit_status = INVALID_OPTION;
1719 if (global_capture_opts.multi_files_on) {
1720 /* Multiple-file mode doesn't work under certain conditions:
1721 a) it doesn't work if you're writing to the standard output;
1722 b) it doesn't work if you're writing to a pipe;
1724 if (strcmp(global_capture_opts.save_file, "-") == 0) {
1725 cmdarg_err("Multiple capture files requested, but "
1726 "the capture is being written to the standard output.");
1727 exit_status = INVALID_OPTION;
1730 if (global_capture_opts.output_to_pipe) {
1731 cmdarg_err("Multiple capture files requested, but "
1732 "the capture file is a pipe.");
1733 exit_status = INVALID_OPTION;
1736 if (!global_capture_opts.has_autostop_filesize &&
1737 !global_capture_opts.has_file_duration &&
1738 !global_capture_opts.has_file_interval) {
1739 cmdarg_err("Multiple capture files requested, but "
1740 "no maximum capture file size, duration or interval was specified.");
1741 exit_status = INVALID_OPTION;
1745 /* Currently, we don't support read or display filters when capturing
1746 and saving the packets. */
1747 if (rfilter != NULL) {
1748 cmdarg_err("Read filters aren't supported when capturing and saving the captured packets.");
1749 exit_status = INVALID_OPTION;
1752 if (dfilter != NULL) {
1753 cmdarg_err("Display filters aren't supported when capturing and saving the captured packets.");
1754 exit_status = INVALID_OPTION;
1757 global_capture_opts.use_pcapng = (out_file_type == WTAP_FILE_TYPE_SUBTYPE_PCAPNG) ? TRUE : FALSE;
1759 /* They didn't specify a "-w" flag, so we won't be saving to a
1760 capture file. Check for options that only make sense if
1761 we're saving to a file. */
1762 if (global_capture_opts.has_autostop_filesize) {
1763 cmdarg_err("Maximum capture file size specified, but "
1764 "capture isn't being saved to a file.");
1765 exit_status = INVALID_OPTION;
1768 if (global_capture_opts.multi_files_on) {
1769 cmdarg_err("Multiple capture files requested, but "
1770 "the capture isn't being saved to a file.");
1771 exit_status = INVALID_OPTION;
1774 if (global_capture_opts.capture_comment) {
1775 cmdarg_err("A capture comment was specified, but "
1776 "the capture isn't being saved to a file.");
1777 exit_status = INVALID_OPTION;
1786 /* Start windows sockets */
1787 result = WSAStartup( MAKEWORD( 1, 1 ), &wsaData );
1790 exit_status = INIT_FAILED;
1795 /* Notify all registered modules that have had any of their preferences
1796 changed either from one of the preferences file or from the command
1797 line that their preferences have changed. */
1800 /* At this point MATE will have registered its field array so we can
1801 have a tap filter with one of MATE's late-registered fields as part
1802 of the filter. We can now process all the "-z" arguments. */
1803 start_requested_stats();
1805 /* We can also enable specified taps for export object */
1806 start_exportobjects();
1808 /* At this point MATE will have registered its field array so we can
1809 check if the fields specified by the user are all good.
1813 GSList *invalid_fields = output_fields_valid(output_fields);
1814 if (invalid_fields != NULL) {
1816 cmdarg_err("Some fields aren't valid:");
1817 for (it=invalid_fields; it != NULL; it = g_slist_next(it)) {
1818 cmdarg_err_cont("\t%s", (gchar *)it->data);
1820 g_slist_free(invalid_fields);
1821 exit_status = INVALID_OPTION;
1826 /* We currently don't support taps, or printing dissected packets,
1827 if we're writing to a pipe. */
1828 if (global_capture_opts.saving_to_file &&
1829 global_capture_opts.output_to_pipe) {
1830 if (tap_listeners_require_dissection()) {
1831 cmdarg_err("Taps aren't supported when saving to a pipe.");
1832 exit_status = INVALID_OPTION;
1835 if (print_packet_info) {
1836 cmdarg_err("Printing dissected packets isn't supported when saving to a pipe.");
1837 exit_status = INVALID_OPTION;
1843 if (ex_opt_count("read_format") > 0) {
1844 const gchar* name = ex_opt_get_next("read_format");
1845 in_file_type = open_info_name_to_type(name);
1846 if (in_file_type == WTAP_TYPE_AUTO) {
1847 cmdarg_err("\"%s\" isn't a valid read file format type", name? name : "");
1848 list_read_capture_types();
1849 exit_status = INVALID_OPTION;
1854 timestamp_set_type(global_dissect_options.time_format);
1857 * Enabled and disabled protocols and heuristic dissectors as per
1858 * command-line options.
1860 if (!setup_enabled_and_disabled_protocols()) {
1861 exit_status = INVALID_OPTION;
1865 /* Build the column format array */
1866 build_column_format_array(&cfile.cinfo, prefs_p->num_cols, TRUE);
1869 capture_opts_trim_snaplen(&global_capture_opts, MIN_PACKET_SIZE);
1870 capture_opts_trim_ring_num_files(&global_capture_opts);
1873 if (rfilter != NULL) {
1874 tshark_debug("Compiling read filter: '%s'", rfilter);
1875 if (!dfilter_compile(rfilter, &rfcode, &err_msg)) {
1876 cmdarg_err("%s", err_msg);
1882 #ifdef HAVE_PCAP_OPEN_DEAD
1886 pc = pcap_open_dead(DLT_EN10MB, MIN_PACKET_SIZE);
1888 if (pcap_compile(pc, &fcode, rfilter, 0, 0) != -1) {
1890 " Note: That read filter code looks like a valid capture filter;\n"
1891 " maybe you mixed them up?");
1897 exit_status = INVALID_INTERFACE;
1901 cfile.rfcode = rfcode;
1903 if (dfilter != NULL) {
1904 tshark_debug("Compiling display filter: '%s'", dfilter);
1905 if (!dfilter_compile(dfilter, &dfcode, &err_msg)) {
1906 cmdarg_err("%s", err_msg);
1912 #ifdef HAVE_PCAP_OPEN_DEAD
1916 pc = pcap_open_dead(DLT_EN10MB, MIN_PACKET_SIZE);
1918 if (pcap_compile(pc, &fcode, dfilter, 0, 0) != -1) {
1920 " Note: That display filter code looks like a valid capture filter;\n"
1921 " maybe you mixed them up?");
1927 exit_status = INVALID_FILTER;
1931 cfile.dfcode = dfcode;
1933 if (print_packet_info) {
1934 /* If we're printing as text or PostScript, we have
1935 to create a print stream. */
1936 if (output_action == WRITE_TEXT) {
1937 switch (print_format) {
1940 print_stream = print_stream_text_stdio_new(stdout);
1944 print_stream = print_stream_ps_stdio_new(stdout);
1948 g_assert_not_reached();
1953 /* PDU export requested. Take the ownership of the '-w' file, apply tap
1954 * filters and start tapping. */
1955 if (pdu_export_arg) {
1956 const char *exp_pdu_tap_name = pdu_export_arg;
1957 const char *exp_pdu_filter = dfilter; /* may be NULL to disable filter */
1958 char *exp_pdu_error;
1963 cmdarg_err("PDUs export requires a capture file (specify with -r).");
1964 exit_status = INVALID_OPTION;
1967 /* Take ownership of the '-w' output file. */
1969 exp_pdu_filename = global_capture_opts.save_file;
1970 global_capture_opts.save_file = NULL;
1972 exp_pdu_filename = output_file_name;
1973 output_file_name = NULL;
1975 if (exp_pdu_filename == NULL) {
1976 cmdarg_err("PDUs export requires an output file (-w).");
1977 exit_status = INVALID_OPTION;
1981 exp_pdu_error = exp_pdu_pre_open(exp_pdu_tap_name, exp_pdu_filter,
1983 if (exp_pdu_error) {
1984 cmdarg_err("Cannot register tap: %s", exp_pdu_error);
1985 g_free(exp_pdu_error);
1986 exit_status = INVALID_TAP;
1990 exp_fd = ws_open(exp_pdu_filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0644);
1992 cmdarg_err("%s: %s", exp_pdu_filename, file_open_error_message(errno, TRUE));
1993 exit_status = INVALID_FILE;
1997 /* Activate the export PDU tap */
1998 comment = g_strdup_printf("Dump of PDUs from %s", cf_name);
1999 err = exp_pdu_open(&exp_pdu_tap_data, exp_fd, comment);
2001 cfile_dump_open_failure_message("TShark", exp_pdu_filename, err,
2002 WTAP_FILE_TYPE_SUBTYPE_PCAPNG);
2004 exit_status = INVALID_EXPORT;
2009 /* We have to dissect each packet if:
2011 we're printing information about each packet;
2013 we're using a read filter on the packets;
2015 we're using a display filter on the packets;
2017 we're exporting PDUs;
2019 we're using any taps that need dissection. */
2020 do_dissection = print_packet_info || rfcode || dfcode || pdu_export_arg ||
2021 tap_listeners_require_dissection() || dissect_color;
2022 tshark_debug("tshark: do_dissection = %s", do_dissection ? "TRUE" : "FALSE");
2025 tshark_debug("tshark: Opening capture file: %s", cf_name);
2027 * We're reading a capture file.
2029 if (cf_open(&cfile, cf_name, in_file_type, FALSE, &err) != CF_OK) {
2034 exit_status = INVALID_FILE;
2038 /* Process the packets in the file */
2039 tshark_debug("tshark: invoking process_cap_file() to process the packets");
2042 success = process_cap_file(&cfile, global_capture_opts.save_file, out_file_type, out_file_name_res,
2043 global_capture_opts.has_autostop_packets ? global_capture_opts.autostop_packets : 0,
2044 global_capture_opts.has_autostop_filesize ? global_capture_opts.autostop_filesize : 0);
2046 success = process_cap_file(&cfile, output_file_name, out_file_type, out_file_name_res, 0, 0);
2049 CATCH(OutOfMemoryError) {
2053 "Sorry, but TShark has to terminate now.\n"
2055 "More information and workarounds can be found at\n"
2056 "https://wiki.wireshark.org/KnownBugs/OutOfMemory\n");
2062 /* We still dump out the results of taps, etc., as we might have
2063 read some packets; however, we exit with an error status. */
2067 if (pdu_export_arg) {
2068 err = exp_pdu_close(&exp_pdu_tap_data);
2070 cfile_close_failure_message(exp_pdu_filename, err);
2073 g_free(pdu_export_arg);
2076 tshark_debug("tshark: no capture file specified");
2077 /* No capture file specified, so we're supposed to do a live capture
2078 or get a list of link-layer types for a live capture device;
2079 do we have support for live captures? */
2081 /* if no interface was specified, pick a default */
2082 exit_status = capture_opts_default_iface_if_necessary(&global_capture_opts,
2083 ((prefs_p->capture_device) && (*prefs_p->capture_device != '\0')) ? get_if_name(prefs_p->capture_device) : NULL);
2084 if (exit_status != 0) {
2088 /* if requested, list the link layer types and exit */
2092 /* Get the list of link-layer types for the capture devices. */
2093 for (i = 0; i < global_capture_opts.ifaces->len; i++) {
2094 interface_options *interface_opts;
2095 if_capabilities_t *caps;
2096 char *auth_str = NULL;
2097 int if_caps_queries = caps_queries;
2099 interface_opts = &g_array_index(global_capture_opts.ifaces, interface_options, i);
2100 #ifdef HAVE_PCAP_REMOTE
2101 if (interface_opts->auth_type == CAPTURE_AUTH_PWD) {
2102 auth_str = g_strdup_printf("%s:%s", interface_opts->auth_username, interface_opts->auth_password);
2105 caps = capture_get_if_capabilities(interface_opts->name, interface_opts->monitor_mode, auth_str, &err_str, NULL);
2108 cmdarg_err("%s", err_str);
2110 exit_status = INVALID_CAPABILITY;
2113 if ((if_caps_queries & CAPS_QUERY_LINK_TYPES) && caps->data_link_types == NULL) {
2114 cmdarg_err("The capture device \"%s\" has no data link types.", interface_opts->name);
2115 exit_status = INVALID_DATA_LINK;
2118 if ((if_caps_queries & CAPS_QUERY_TIMESTAMP_TYPES) && caps->timestamp_types == NULL) {
2119 cmdarg_err("The capture device \"%s\" has no timestamp types.", interface_opts->name);
2120 exit_status = INVALID_TIMESTAMP_TYPE;
2123 if (interface_opts->monitor_mode)
2124 if_caps_queries |= CAPS_MONITOR_MODE;
2125 capture_opts_print_if_capabilities(caps, interface_opts->name, if_caps_queries);
2126 free_if_capabilities(caps);
2128 exit_status = EXIT_SUCCESS;
2133 * If the standard error isn't a terminal, don't print packet counts,
2134 * as they won't show up on the user's terminal and they'll get in
2135 * the way of error messages in the file (to which we assume the
2136 * standard error was redirected; if it's redirected to the null
2137 * device, there's no point in printing packet counts anyway).
2139 * Otherwise, if we're printing packet information and the standard
2140 * output is a terminal (which we assume means the standard output and
2141 * error are going to the same terminal), don't print packet counts,
2142 * as they'll get in the way of the packet information.
2144 * Otherwise, if the user specified -q, don't print packet counts.
2146 * Otherwise, print packet counts.
2148 * XXX - what if the user wants to do a live capture, doesn't want
2149 * to save it to a file, doesn't want information printed for each
2150 * packet, does want some "-z" statistic, and wants packet counts
2151 * so they know whether they're seeing any packets? -q will
2152 * suppress the information printed for each packet, but it'll
2153 * also suppress the packet counts.
2155 if (!ws_isatty(ws_fileno(stderr)))
2156 print_packet_counts = FALSE;
2157 else if (print_packet_info && ws_isatty(ws_fileno(stdout)))
2158 print_packet_counts = FALSE;
2160 print_packet_counts = FALSE;
2162 print_packet_counts = TRUE;
2164 if (print_packet_info) {
2165 if (!write_preamble(&cfile)) {
2166 show_print_file_io_error(errno);
2167 exit_status = INVALID_FILE;
2172 tshark_debug("tshark: performing live capture");
2174 * XXX - this returns FALSE if an error occurred, but it also
2175 * returns FALSE if the capture stops because a time limit
2176 * was reached (and possibly other limits), so we can't assume
2177 * it means an error.
2179 * The capture code is a bit twisty, so it doesn't appear to
2180 * be an easy fix. We just ignore the return value for now.
2181 * Instead, pass on the exit status from the capture child.
2184 exit_status = global_capture_session.fork_child_status;
2186 if (print_packet_info) {
2187 if (!write_finale()) {
2188 show_print_file_io_error(errno);
2192 /* No - complain. */
2193 cmdarg_err("This version of TShark was not built with support for capturing packets.");
2194 exit_status = INVALID_CAPTURE;
2201 if (cfile.provider.frames != NULL) {
2202 free_frame_data_sequence(cfile.provider.frames);
2203 cfile.provider.frames = NULL;
2206 draw_tap_listeners(TRUE);
2207 funnel_dump_all_text_windows();
2208 epan_free(cfile.epan);
2214 output_fields_free(output_fields);
2215 output_fields = NULL;
2218 destroy_print_stream(print_stream);
2220 capture_opts_cleanup(&global_capture_opts);
2222 col_cleanup(&cfile.cinfo);
2223 free_filter_lists();
2233 /*#define USE_BROKEN_G_MAIN_LOOP*/
2235 #ifdef USE_BROKEN_G_MAIN_LOOP
2238 gboolean loop_running = FALSE;
2240 guint32 packet_count = 0;
2243 typedef struct pipe_input_tag {
2246 ws_process_id *child_process;
2247 pipe_input_cb_t input_cb;
2248 guint pipe_input_id;
2250 GMutex *callback_running;
2254 static pipe_input_t pipe_input;
2257 /* The timer has expired, see if there's stuff to read from the pipe,
2258 if so, do the callback */
2260 pipe_timer_cb(gpointer data)
2266 pipe_input_t *pipe_input_p = data;
2267 gint iterations = 0;
2269 g_mutex_lock (pipe_input_p->callback_running);
2271 /* try to read data from the pipe only 5 times, to avoid blocking */
2272 while(iterations < 5) {
2273 /*g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_timer_cb: new iteration");*/
2275 /* Oddly enough although Named pipes don't work on win9x,
2276 PeekNamedPipe does !!! */
2277 handle = (HANDLE) _get_osfhandle (pipe_input_p->source);
2278 result = PeekNamedPipe(handle, NULL, 0, NULL, &avail, NULL);
2280 /* Get the child process exit status */
2281 GetExitCodeProcess((HANDLE)*(pipe_input_p->child_process),
2284 /* If the Peek returned an error, or there are bytes to be read
2285 or the childwatcher thread has terminated then call the normal
2287 if (!result || avail > 0 || childstatus != STILL_ACTIVE) {
2289 /*g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_timer_cb: data avail");*/
2291 /* And call the real handler */
2292 if (!pipe_input_p->input_cb(pipe_input_p->source, pipe_input_p->user_data)) {
2293 g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_timer_cb: input pipe closed, iterations: %u", iterations);
2294 /* pipe closed, return false so that the timer is stopped */
2295 g_mutex_unlock (pipe_input_p->callback_running);
2300 /*g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_timer_cb: no data avail");*/
2301 /* No data, stop now */
2308 /*g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_timer_cb: finished with iterations: %u, new timer", iterations);*/
2310 g_mutex_unlock (pipe_input_p->callback_running);
2312 /* we didn't stopped the timer, so let it run */
2319 pipe_input_set_handler(gint source, gpointer user_data, ws_process_id *child_process, pipe_input_cb_t input_cb)
2322 pipe_input.source = source;
2323 pipe_input.child_process = child_process;
2324 pipe_input.user_data = user_data;
2325 pipe_input.input_cb = input_cb;
2328 #if GLIB_CHECK_VERSION(2,31,0)
2329 pipe_input.callback_running = g_malloc(sizeof(GMutex));
2330 g_mutex_init(pipe_input.callback_running);
2332 pipe_input.callback_running = g_mutex_new();
2334 /* Tricky to use pipes in win9x, as no concept of wait. NT can
2335 do this but that doesn't cover all win32 platforms. GTK can do
2336 this but doesn't seem to work over processes. Attempt to do
2337 something similar here, start a timer and check for data on every
2339 /*g_log(NULL, G_LOG_LEVEL_DEBUG, "pipe_input_set_handler: new");*/
2340 pipe_input.pipe_input_id = g_timeout_add(200, pipe_timer_cb, &pipe_input);
2344 static const nstime_t *
2345 tshark_get_frame_ts(struct packet_provider_data *prov, guint32 frame_num)
2347 if (prov->ref && prov->ref->num == frame_num)
2348 return &prov->ref->abs_ts;
2350 if (prov->prev_dis && prov->prev_dis->num == frame_num)
2351 return &prov->prev_dis->abs_ts;
2353 if (prov->prev_cap && prov->prev_cap->num == frame_num)
2354 return &prov->prev_cap->abs_ts;
2357 frame_data *fd = frame_data_sequence_find(prov->frames, frame_num);
2359 return (fd) ? &fd->abs_ts : NULL;
2366 tshark_epan_new(capture_file *cf)
2368 static const struct packet_provider_funcs funcs = {
2369 tshark_get_frame_ts,
2370 cap_file_provider_get_interface_name,
2371 cap_file_provider_get_interface_description,
2375 return epan_new(&cf->provider, &funcs);
2385 #ifdef USE_TSHARK_SELECT
2389 struct sigaction action, oldaction;
2392 /* Create new dissection section. */
2393 epan_free(cfile.epan);
2394 cfile.epan = tshark_epan_new(&cfile);
2397 /* Catch a CTRL+C event and, if we get it, clean up and exit. */
2398 SetConsoleCtrlHandler(capture_cleanup, TRUE);
2400 /* Catch SIGINT and SIGTERM and, if we get either of them,
2401 clean up and exit. If SIGHUP isn't being ignored, catch
2402 it too and, if we get it, clean up and exit.
2404 We restart any read that was in progress, so that it doesn't
2405 disrupt reading from the sync pipe. The signal handler tells
2406 the capture child to finish; it will report that it finished,
2407 or will exit abnormally, so we'll stop reading from the sync
2408 pipe, pick up the exit status, and quit. */
2409 memset(&action, 0, sizeof(action));
2410 action.sa_handler = capture_cleanup;
2411 action.sa_flags = SA_RESTART;
2412 sigemptyset(&action.sa_mask);
2413 sigaction(SIGTERM, &action, NULL);
2414 sigaction(SIGINT, &action, NULL);
2415 sigaction(SIGHUP, NULL, &oldaction);
2416 if (oldaction.sa_handler == SIG_DFL)
2417 sigaction(SIGHUP, &action, NULL);
2420 /* Catch SIGINFO and, if we get it and we're capturing to a file in
2421 quiet mode, report the number of packets we've captured.
2423 Again, restart any read that was in progress, so that it doesn't
2424 disrupt reading from the sync pipe. */
2425 action.sa_handler = report_counts_siginfo;
2426 action.sa_flags = SA_RESTART;
2427 sigemptyset(&action.sa_mask);
2428 sigaction(SIGINFO, &action, NULL);
2429 #endif /* SIGINFO */
2432 global_capture_session.state = CAPTURE_PREPARING;
2434 /* Let the user know which interfaces were chosen. */
2435 for (i = 0; i < global_capture_opts.ifaces->len; i++) {
2436 interface_options *interface_opts;
2438 interface_opts = &g_array_index(global_capture_opts.ifaces, interface_options, i);
2439 interface_opts->descr = get_interface_descriptive_name(interface_opts->name);
2441 str = get_iface_list_string(&global_capture_opts, IFLIST_QUOTE_IF_DESCRIPTION);
2442 if (really_quiet == FALSE)
2443 fprintf(stderr, "Capturing on %s\n", str->str);
2445 g_string_free(str, TRUE);
2447 ret = sync_pipe_start(&global_capture_opts, &global_capture_session, &global_info_data, NULL);
2452 /* the actual capture loop
2454 * XXX - glib doesn't seem to provide any event based loop handling.
2456 * XXX - for whatever reason,
2457 * calling g_main_loop_new() ends up in 100% cpu load.
2459 * But that doesn't matter: in UNIX we can use select() to find an input
2460 * source with something to do.
2462 * But that doesn't matter because we're in a CLI (that doesn't need to
2463 * update a GUI or something at the same time) so it's OK if we block
2464 * trying to read from the pipe.
2466 * So all the stuff in USE_TSHARK_SELECT could be removed unless I'm
2467 * wrong (but I leave it there in case I am...).
2470 #ifdef USE_TSHARK_SELECT
2472 FD_SET(pipe_input.source, &readfds);
2475 loop_running = TRUE;
2479 while (loop_running)
2481 #ifdef USE_TSHARK_SELECT
2482 ret = select(pipe_input.source+1, &readfds, NULL, NULL, NULL);
2486 fprintf(stderr, "%s: %s\n", "select()", g_strerror(errno));
2488 } else if (ret == 1) {
2490 /* Call the real handler */
2491 if (!pipe_input.input_cb(pipe_input.source, pipe_input.user_data)) {
2492 g_log(NULL, G_LOG_LEVEL_DEBUG, "input pipe closed");
2495 #ifdef USE_TSHARK_SELECT
2500 CATCH(OutOfMemoryError) {
2504 "Sorry, but TShark has to terminate now.\n"
2506 "More information and workarounds can be found at\n"
2507 "https://wiki.wireshark.org/KnownBugs/OutOfMemory\n");
2514 /* capture child detected an error */
2516 capture_input_error_message(capture_session *cap_session _U_, char *error_msg, char *secondary_error_msg)
2518 cmdarg_err("%s", error_msg);
2519 cmdarg_err_cont("%s", secondary_error_msg);
2523 /* capture child detected an capture filter related error */
2525 capture_input_cfilter_error_message(capture_session *cap_session, guint i, char *error_message)
2527 capture_options *capture_opts = cap_session->capture_opts;
2528 dfilter_t *rfcode = NULL;
2529 interface_options *interface_opts;
2531 g_assert(i < capture_opts->ifaces->len);
2532 interface_opts = &g_array_index(capture_opts->ifaces, interface_options, i);
2534 if (dfilter_compile(interface_opts->cfilter, &rfcode, NULL) && rfcode != NULL) {
2536 "Invalid capture filter \"%s\" for interface '%s'.\n"
2538 "That string looks like a valid display filter; however, it isn't a valid\n"
2539 "capture filter (%s).\n"
2541 "Note that display filters and capture filters don't have the same syntax,\n"
2542 "so you can't use most display filter expressions as capture filters.\n"
2544 "See the User's Guide for a description of the capture filter syntax.",
2545 interface_opts->cfilter, interface_opts->descr, error_message);
2546 dfilter_free(rfcode);
2549 "Invalid capture filter \"%s\" for interface '%s'.\n"
2551 "That string isn't a valid capture filter (%s).\n"
2552 "See the User's Guide for a description of the capture filter syntax.",
2553 interface_opts->cfilter, interface_opts->descr, error_message);
2558 /* capture child tells us we have a new (or the first) capture file */
2560 capture_input_new_file(capture_session *cap_session, gchar *new_file)
2562 capture_options *capture_opts = cap_session->capture_opts;
2563 capture_file *cf = (capture_file *) cap_session->cf;
2564 gboolean is_tempfile;
2567 if (cap_session->state == CAPTURE_PREPARING) {
2568 g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_MESSAGE, "Capture started.");
2570 g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_MESSAGE, "File: \"%s\"", new_file);
2572 g_assert(cap_session->state == CAPTURE_PREPARING || cap_session->state == CAPTURE_RUNNING);
2574 /* free the old filename */
2575 if (capture_opts->save_file != NULL) {
2577 /* we start a new capture file, close the old one (if we had one before) */
2578 if (cf->state != FILE_CLOSED) {
2579 if (cf->provider.wth != NULL) {
2580 wtap_close(cf->provider.wth);
2581 cf->provider.wth = NULL;
2583 cf->state = FILE_CLOSED;
2586 g_free(capture_opts->save_file);
2587 is_tempfile = FALSE;
2589 epan_free(cf->epan);
2590 cf->epan = tshark_epan_new(cf);
2592 /* we didn't had a save_file before, must be a tempfile */
2596 /* save the new filename */
2597 capture_opts->save_file = g_strdup(new_file);
2599 /* if we are in real-time mode, open the new file now */
2600 if (do_dissection) {
2601 /* this is probably unecessary, but better safe than sorry */
2602 ((capture_file *)cap_session->cf)->open_type = WTAP_TYPE_AUTO;
2603 /* Attempt to open the capture file and set up to read from it. */
2604 switch(cf_open((capture_file *)cap_session->cf, capture_opts->save_file, WTAP_TYPE_AUTO, is_tempfile, &err)) {
2608 /* Don't unlink (delete) the save file - leave it around,
2609 for debugging purposes. */
2610 g_free(capture_opts->save_file);
2611 capture_opts->save_file = NULL;
2616 cap_session->state = CAPTURE_RUNNING;
2622 /* capture child tells us we have new packets to read */
2624 capture_input_new_packets(capture_session *cap_session, int to_read)
2630 capture_file *cf = (capture_file *)cap_session->cf;
2631 gboolean filtering_tap_listeners;
2636 * Prevent a SIGINFO handler from writing to the standard error while
2637 * we're doing so or writing to the standard output; instead, have it
2638 * just set a flag telling us to print that information when we're done.
2641 #endif /* SIGINFO */
2643 /* Do we have any tap listeners with filters? */
2644 filtering_tap_listeners = have_filtering_tap_listeners();
2646 /* Get the union of the flags for all tap listeners. */
2647 tap_flags = union_of_tap_listener_flags();
2649 if (do_dissection) {
2650 gboolean create_proto_tree;
2651 epan_dissect_t *edt;
2654 * Determine whether we need to create a protocol tree.
2657 * we're going to apply a read filter;
2659 * we're going to apply a display filter;
2661 * we're going to print the protocol tree;
2663 * one of the tap listeners is going to apply a filter;
2665 * one of the tap listeners requires a protocol tree;
2667 * a postdissector wants field values or protocols
2668 * on the first pass;
2670 * we have custom columns (which require field values, which
2671 * currently requires that we build a protocol tree).
2674 (cf->rfcode || cf->dfcode || print_details || filtering_tap_listeners ||
2675 (tap_flags & TL_REQUIRES_PROTO_TREE) || postdissectors_want_hfids() ||
2676 have_custom_cols(&cf->cinfo) || dissect_color);
2678 /* The protocol tree will be "visible", i.e., printed, only if we're
2679 printing packet details, which is true if we're printing stuff
2680 ("print_packet_info" is true) and we're in verbose mode
2681 ("packet_details" is true). */
2682 edt = epan_dissect_new(cf->epan, create_proto_tree, print_packet_info && print_details);
2684 while (to_read-- && cf->provider.wth) {
2685 wtap_cleareof(cf->provider.wth);
2686 ret = wtap_read(cf->provider.wth, &err, &err_info, &data_offset);
2687 reset_epan_mem(cf, edt, create_proto_tree, print_packet_info && print_details);
2689 /* read from file failed, tell the capture child to stop */
2690 sync_pipe_stop(cap_session);
2691 wtap_close(cf->provider.wth);
2692 cf->provider.wth = NULL;
2694 ret = process_packet_single_pass(cf, edt, data_offset,
2695 wtap_phdr(cf->provider.wth),
2696 wtap_buf_ptr(cf->provider.wth), tap_flags);
2699 /* packet successfully read and gone through the "Read Filter" */
2704 epan_dissect_free(edt);
2708 * Dumpcap's doing all the work; we're not doing any dissection.
2709 * Count all the packets it wrote.
2711 packet_count += to_read;
2714 if (print_packet_counts) {
2715 /* We're printing packet counts. */
2716 if (packet_count != 0) {
2717 fprintf(stderr, "\r%u ", packet_count);
2718 /* stderr could be line buffered */
2725 * Allow SIGINFO handlers to write.
2730 * If a SIGINFO handler asked us to write out capture counts, do so.
2734 #endif /* SIGINFO */
2740 if ((print_packet_counts == FALSE) && (really_quiet == FALSE)) {
2741 /* Report the count only if we aren't printing a packet count
2742 as packets arrive. */
2743 fprintf(stderr, "%u packet%s captured\n", packet_count,
2744 plurality(packet_count, "", "s"));
2747 infoprint = FALSE; /* we just reported it */
2748 #endif /* SIGINFO */
2753 report_counts_siginfo(int signum _U_)
2755 int sav_errno = errno;
2756 /* If we've been told to delay printing, just set a flag asking
2757 that we print counts (if we're supposed to), otherwise print
2758 the count of packets captured (if we're supposed to). */
2765 #endif /* SIGINFO */
2768 /* capture child detected any packet drops? */
2770 capture_input_drops(capture_session *cap_session _U_, guint32 dropped)
2772 if (print_packet_counts) {
2773 /* We're printing packet counts to stderr.
2774 Send a newline so that we move to the line after the packet count. */
2775 fprintf(stderr, "\n");
2779 /* We're printing packet counts to stderr.
2780 Send a newline so that we move to the line after the packet count. */
2781 fprintf(stderr, "%u packet%s dropped\n", dropped, plurality(dropped, "", "s"));
2787 * Capture child closed its side of the pipe, report any error and
2788 * do the required cleanup.
2791 capture_input_closed(capture_session *cap_session, gchar *msg)
2793 capture_file *cf = (capture_file *) cap_session->cf;
2796 fprintf(stderr, "tshark: %s\n", msg);
2800 if (cf != NULL && cf->provider.wth != NULL) {
2801 wtap_close(cf->provider.wth);
2802 if (cf->is_tempfile) {
2803 ws_unlink(cf->filename);
2806 #ifdef USE_BROKEN_G_MAIN_LOOP
2807 /*g_main_loop_quit(loop);*/
2808 g_main_loop_quit(loop);
2810 loop_running = FALSE;
2819 capture_cleanup(DWORD ctrltype _U_)
2821 /* CTRL_C_EVENT is sort of like SIGINT, CTRL_BREAK_EVENT is unique to
2822 Windows, CTRL_CLOSE_EVENT is sort of like SIGHUP, CTRL_LOGOFF_EVENT
2823 is also sort of like SIGHUP, and CTRL_SHUTDOWN_EVENT is sort of
2824 like SIGTERM at least when the machine's shutting down.
2826 For now, we handle them all as indications that we should clean up
2827 and quit, just as we handle SIGINT, SIGHUP, and SIGTERM in that
2830 We must return TRUE so that no other handler - such as one that would
2831 terminate the process - gets called.
2833 XXX - for some reason, typing ^C to TShark, if you run this in
2834 a Cygwin console window in at least some versions of Cygwin,
2835 causes TShark to terminate immediately; this routine gets
2836 called, but the main loop doesn't get a chance to run and
2837 exit cleanly, at least if this is compiled with Microsoft Visual
2838 C++ (i.e., it's a property of the Cygwin console window or Bash;
2839 it happens if TShark is not built with Cygwin - for all I know,
2840 building it with Cygwin may make the problem go away). */
2842 /* tell the capture child to stop */
2843 sync_pipe_stop(&global_capture_session);
2845 /* don't stop our own loop already here, otherwise status messages and
2846 * cleanup wouldn't be done properly. The child will indicate the stop of
2847 * everything by calling capture_input_closed() later */
2853 capture_cleanup(int signum _U_)
2855 /* tell the capture child to stop */
2856 sync_pipe_stop(&global_capture_session);
2858 /* don't stop our own loop already here, otherwise status messages and
2859 * cleanup wouldn't be done properly. The child will indicate the stop of
2860 * everything by calling capture_input_closed() later */
2863 #endif /* HAVE_LIBPCAP */
2866 process_packet_first_pass(capture_file *cf, epan_dissect_t *edt,
2867 gint64 offset, struct wtap_pkthdr *whdr,
2874 /* The frame number of this packet is one more than the count of
2875 frames in this packet. */
2876 framenum = cf->count + 1;
2878 /* If we're not running a display filter and we're not printing any
2879 packet information, we don't need to do a dissection. This means
2880 that all packets can be marked as 'passed'. */
2883 frame_data_init(&fdlocal, framenum, whdr, offset, cum_bytes);
2885 /* If we're going to run a read filter or a display filter, set up to
2886 do a dissection and do so. (This is the first pass of two passes
2887 over the packets, so we will not be printing any information
2888 from the dissection or running taps on the packet; if we're doing
2889 any of that, we'll do it in the second pass.) */
2891 if (gbl_resolv_flags.mac_name || gbl_resolv_flags.network_name ||
2892 gbl_resolv_flags.transport_name)
2893 /* Grab any resolved addresses */
2894 host_name_lookup_process();
2896 /* If we're running a read filter, prime the epan_dissect_t with that
2899 epan_dissect_prime_with_dfilter(edt, cf->rfcode);
2902 epan_dissect_prime_with_dfilter(edt, cf->dfcode);
2904 /* This is the first pass, so prime the epan_dissect_t with the
2905 hfids postdissectors want on the first pass. */
2906 prime_epan_dissect_with_postdissector_wanted_hfids(edt);
2908 frame_data_set_before_dissect(&fdlocal, &cf->elapsed_time,
2909 &cf->provider.ref, cf->provider.prev_dis);
2910 if (cf->provider.ref == &fdlocal) {
2911 ref_frame = fdlocal;
2912 cf->provider.ref = &ref_frame;
2915 epan_dissect_run(edt, cf->cd_t, whdr, frame_tvbuff_new(&fdlocal, pd), &fdlocal, NULL);
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, struct wtap_pkthdr *phdr,
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, phdr, frame_tvbuff_new_buffer(fdata, buf), fdata, cinfo);
3007 /* Run the read/display filter if we have one. */
3009 passed = dfilter_apply_edt(cf->dfcode, edt);
3013 frame_data_set_after_dissect(fdata, &cum_bytes);
3014 /* Process this packet. */
3015 if (print_packet_info) {
3016 /* We're printing packet information; print the information for
3018 print_packet(cf, edt);
3020 /* If we're doing "line-buffering", flush the standard output
3021 after every packet. See the comment above, for the "-l"
3022 option, for an explanation of why we do that. */
3026 if (ferror(stdout)) {
3027 show_print_file_io_error(errno);
3031 cf->provider.prev_dis = fdata;
3033 cf->provider.prev_cap = fdata;
3036 epan_dissect_reset(edt);
3038 return passed || fdata->flags.dependent_of_displayed;
3042 process_cap_file(capture_file *cf, char *save_file, int out_file_type,
3043 gboolean out_file_name_res, int max_packet_count, gint64 max_byte_count)
3045 gboolean success = TRUE;
3047 int snapshot_length;
3050 int err = 0, err_pass1 = 0;
3051 gchar *err_info = NULL, *err_info_pass1 = NULL;
3053 gboolean filtering_tap_listeners;
3055 GArray *shb_hdrs = NULL;
3056 wtapng_iface_descriptions_t *idb_inf = NULL;
3057 GArray *nrb_hdrs = NULL;
3058 struct wtap_pkthdr phdr;
3060 epan_dissect_t *edt = NULL;
3061 char *shb_user_appl;
3063 wtap_phdr_init(&phdr);
3065 idb_inf = wtap_file_get_idb_info(cf->provider.wth);
3066 #ifdef PCAP_NG_DEFAULT
3067 if (idb_inf->interface_data->len > 1) {
3068 linktype = WTAP_ENCAP_PER_PACKET;
3070 linktype = wtap_file_encap(cf->provider.wth);
3073 linktype = wtap_file_encap(cf->provider.wth);
3075 if (save_file != NULL) {
3076 /* Set up to write to the capture file. */
3077 snapshot_length = wtap_snapshot_length(cf->provider.wth);
3078 if (snapshot_length == 0) {
3079 /* Snapshot length of input file not known. */
3080 snapshot_length = WTAP_MAX_PACKET_SIZE_STANDARD;
3082 tshark_debug("tshark: snapshot_length = %d", snapshot_length);
3084 shb_hdrs = wtap_file_get_shb_for_new_file(cf->provider.wth);
3085 nrb_hdrs = wtap_file_get_nrb_for_new_file(cf->provider.wth);
3087 /* If we don't have an application name add Tshark */
3088 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) {
3089 /* this is free'd by wtap_block_free() later */
3090 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());
3093 if (linktype != WTAP_ENCAP_PER_PACKET &&
3094 out_file_type == WTAP_FILE_TYPE_SUBTYPE_PCAP) {
3095 tshark_debug("tshark: writing PCAP format to %s", save_file);
3096 if (strcmp(save_file, "-") == 0) {
3097 /* Write to the standard output. */
3098 pdh = wtap_dump_open_stdout(out_file_type, linktype,
3099 snapshot_length, FALSE /* compressed */, &err);
3101 pdh = wtap_dump_open(save_file, out_file_type, linktype,
3102 snapshot_length, FALSE /* compressed */, &err);
3106 tshark_debug("tshark: writing format type %d, to %s", out_file_type, save_file);
3107 if (strcmp(save_file, "-") == 0) {
3108 /* Write to the standard output. */
3109 pdh = wtap_dump_open_stdout_ng(out_file_type, linktype,
3110 snapshot_length, FALSE /* compressed */, shb_hdrs, idb_inf, nrb_hdrs, &err);
3112 pdh = wtap_dump_open_ng(save_file, out_file_type, linktype,
3113 snapshot_length, FALSE /* compressed */, shb_hdrs, idb_inf, nrb_hdrs, &err);
3121 /* We couldn't set up to write to the capture file. */
3122 cfile_dump_open_failure_message("TShark", save_file, err, out_file_type);
3127 /* Set up to print packet information. */
3128 if (print_packet_info) {
3129 if (!write_preamble(cf)) {
3130 show_print_file_io_error(errno);
3140 /* Do we have any tap listeners with filters? */
3141 filtering_tap_listeners = have_filtering_tap_listeners();
3143 /* Get the union of the flags for all tap listeners. */
3144 tap_flags = union_of_tap_listener_flags();
3146 if (perform_two_pass_analysis) {
3149 tshark_debug("tshark: perform_two_pass_analysis, do_dissection=%s", do_dissection ? "TRUE" : "FALSE");
3151 /* Allocate a frame_data_sequence for all the frames. */
3152 cf->provider.frames = new_frame_data_sequence();
3154 if (do_dissection) {
3155 gboolean create_proto_tree;
3158 * Determine whether we need to create a protocol tree.
3161 * we're going to apply a read filter;
3163 * we're going to apply a display filter;
3165 * a postdissector wants field values or protocols
3166 * on the first pass.
3169 (cf->rfcode != NULL || cf->dfcode != NULL || postdissectors_want_hfids() || dissect_color);
3171 tshark_debug("tshark: create_proto_tree = %s", create_proto_tree ? "TRUE" : "FALSE");
3173 /* We're not going to display the protocol tree on this pass,
3174 so it's not going to be "visible". */
3175 edt = epan_dissect_new(cf->epan, create_proto_tree, FALSE);
3178 tshark_debug("tshark: reading records for first pass");
3179 while (wtap_read(cf->provider.wth, &err, &err_info, &data_offset)) {
3180 if (process_packet_first_pass(cf, edt, data_offset, wtap_phdr(cf->provider.wth),
3181 wtap_buf_ptr(cf->provider.wth))) {
3182 /* Stop reading if we have the maximum number of packets;
3183 * When the -c option has not been used, max_packet_count
3184 * starts at 0, which practically means, never stop reading.
3185 * (unless we roll over max_packet_count ?)
3187 if ( (--max_packet_count == 0) || (max_byte_count != 0 && data_offset >= max_byte_count)) {
3188 tshark_debug("tshark: max_packet_count (%d) or max_byte_count (%" G_GINT64_MODIFIER "d/%" G_GINT64_MODIFIER "d) reached",
3189 max_packet_count, data_offset, max_byte_count);
3190 err = 0; /* This is not an error */
3197 * If we got a read error on the first pass, remember the error, so
3198 * but do the second pass, so we can at least process the packets we
3199 * read, and then report the first-pass error after the second pass
3200 * (and before we report any second-pass errors), so all the the
3201 * errors show up at the end.
3205 err_info_pass1 = err_info;
3211 epan_dissect_free(edt);
3215 /* Close the sequential I/O side, to free up memory it requires. */
3216 wtap_sequential_close(cf->provider.wth);
3218 /* Allow the protocol dissectors to free up memory that they
3219 * don't need after the sequential run-through of the packets. */
3220 postseq_cleanup_all_protocols();
3222 cf->provider.prev_dis = NULL;
3223 cf->provider.prev_cap = NULL;
3224 ws_buffer_init(&buf, 1500);
3226 tshark_debug("tshark: done with first pass");
3228 if (do_dissection) {
3229 gboolean create_proto_tree;
3232 * Determine whether we need to create a protocol tree.
3235 * we're going to apply a display filter;
3237 * we're going to print the protocol tree;
3239 * one of the tap listeners requires a protocol tree;
3241 * we have custom columns (which require field values, which
3242 * currently requires that we build a protocol tree).
3245 (cf->dfcode || print_details || filtering_tap_listeners ||
3246 (tap_flags & TL_REQUIRES_PROTO_TREE) || have_custom_cols(&cf->cinfo) || dissect_color);
3248 tshark_debug("tshark: create_proto_tree = %s", create_proto_tree ? "TRUE" : "FALSE");
3250 /* The protocol tree will be "visible", i.e., printed, only if we're
3251 printing packet details, which is true if we're printing stuff
3252 ("print_packet_info" is true) and we're in verbose mode
3253 ("packet_details" is true). */
3254 edt = epan_dissect_new(cf->epan, create_proto_tree, print_packet_info && print_details);
3257 for (framenum = 1; err == 0 && framenum <= cf->count; framenum++) {
3258 fdata = frame_data_sequence_find(cf->provider.frames, framenum);
3259 if (wtap_seek_read(cf->provider.wth, fdata->file_off, &phdr, &buf, &err,
3261 tshark_debug("tshark: invoking process_packet_second_pass() for frame #%d", framenum);
3262 if (process_packet_second_pass(cf, edt, fdata, &phdr, &buf,
3264 /* Either there's no read filtering or this packet passed the
3265 filter, so, if we're writing to a capture file, write
3268 tshark_debug("tshark: writing packet #%d to outfile", framenum);
3269 if (!wtap_dump(pdh, &phdr, ws_buffer_start_ptr(&buf), &err, &err_info)) {
3270 /* Error writing to a capture file */
3271 tshark_debug("tshark: error writing to a capture file (%d)", err);
3273 /* Report the error.
3274 XXX - framenum is not necessarily the frame number in
3275 the input file if there was a read filter. */
3276 cfile_write_failure_message("TShark", cf->filename, save_file,
3277 err, err_info, framenum,
3279 wtap_dump_close(pdh, &err);
3280 wtap_block_array_free(shb_hdrs);
3281 wtap_block_array_free(nrb_hdrs);
3290 epan_dissect_free(edt);
3294 ws_buffer_free(&buf);
3296 tshark_debug("tshark: done with second pass");
3299 /* !perform_two_pass_analysis */
3301 gboolean create_proto_tree = FALSE;
3302 tshark_debug("tshark: perform one pass analysis, do_dissection=%s", do_dissection ? "TRUE" : "FALSE");
3304 if (do_dissection) {
3306 * Determine whether we need to create a protocol tree.
3309 * we're going to apply a read filter;
3311 * we're going to apply a display filter;
3313 * we're going to print the protocol tree;
3315 * one of the tap listeners is going to apply a filter;
3317 * one of the tap listeners requires a protocol tree;
3319 * a postdissector wants field values or protocols
3320 * on the first pass;
3322 * we have custom columns (which require field values, which
3323 * currently requires that we build a protocol tree).
3326 (cf->rfcode || cf->dfcode || print_details || filtering_tap_listeners ||
3327 (tap_flags & TL_REQUIRES_PROTO_TREE) || postdissectors_want_hfids() ||
3328 have_custom_cols(&cf->cinfo) || dissect_color);
3330 tshark_debug("tshark: create_proto_tree = %s", create_proto_tree ? "TRUE" : "FALSE");
3332 /* The protocol tree will be "visible", i.e., printed, only if we're
3333 printing packet details, which is true if we're printing stuff
3334 ("print_packet_info" is true) and we're in verbose mode
3335 ("packet_details" is true). */
3336 edt = epan_dissect_new(cf->epan, create_proto_tree, print_packet_info && print_details);
3339 while (wtap_read(cf->provider.wth, &err, &err_info, &data_offset)) {
3342 tshark_debug("tshark: processing packet #%d", framenum);
3344 reset_epan_mem(cf, edt, create_proto_tree, print_packet_info && print_details);
3346 if (process_packet_single_pass(cf, edt, data_offset, wtap_phdr(cf->provider.wth),
3347 wtap_buf_ptr(cf->provider.wth), tap_flags)) {
3348 /* Either there's no read filtering or this packet passed the
3349 filter, so, if we're writing to a capture file, write
3352 tshark_debug("tshark: writing packet #%d to outfile", framenum);
3353 if (!wtap_dump(pdh, wtap_phdr(cf->provider.wth), wtap_buf_ptr(cf->provider.wth), &err, &err_info)) {
3354 /* Error writing to a capture file */
3355 tshark_debug("tshark: error writing to a capture file (%d)", err);
3356 cfile_write_failure_message("TShark", cf->filename, save_file,
3357 err, err_info, framenum, out_file_type);
3358 wtap_dump_close(pdh, &err);
3359 wtap_block_array_free(shb_hdrs);
3360 wtap_block_array_free(nrb_hdrs);
3365 /* Stop reading if we have the maximum number of packets;
3366 * When the -c option has not been used, max_packet_count
3367 * starts at 0, which practically means, never stop reading.
3368 * (unless we roll over max_packet_count ?)
3370 if ( (--max_packet_count == 0) || (max_byte_count != 0 && data_offset >= max_byte_count)) {
3371 tshark_debug("tshark: max_packet_count (%d) or max_byte_count (%" G_GINT64_MODIFIER "d/%" G_GINT64_MODIFIER "d) reached",
3372 max_packet_count, data_offset, max_byte_count);
3373 err = 0; /* This is not an error */
3379 epan_dissect_free(edt);
3384 wtap_phdr_cleanup(&phdr);
3386 if (err != 0 || err_pass1 != 0) {
3387 tshark_debug("tshark: something failed along the line (%d)", err);
3389 * Print a message noting that the read failed somewhere along the line.
3391 * If we're printing packet data, and the standard output and error are
3392 * going to the same place, flush the standard output, so everything
3393 * buffered up is written, and then print a newline to the standard error
3394 * before printing the error message, to separate it from the packet
3395 * data. (Alas, that only works on UN*X; st_dev is meaningless, and
3396 * the _fstat() documentation at Microsoft doesn't indicate whether
3397 * st_ino is even supported.)
3400 if (print_packet_info) {
3401 ws_statb64 stat_stdout, stat_stderr;
3403 if (ws_fstat64(1, &stat_stdout) == 0 && ws_fstat64(2, &stat_stderr) == 0) {
3404 if (stat_stdout.st_dev == stat_stderr.st_dev &&
3405 stat_stdout.st_ino == stat_stderr.st_ino) {
3407 fprintf(stderr, "\n");
3412 if (err_pass1 != 0) {
3413 /* Error on pass 1 of two-pass processing. */
3414 cfile_read_failure_message("TShark", cf->filename, err_pass1,
3418 /* Error on pass 2 of two-pass processing or on the only pass of
3419 one-pass processing. */
3420 cfile_read_failure_message("TShark", cf->filename, err, err_info);
3424 if (save_file != NULL) {
3425 if (pdh && out_file_name_res) {
3426 if (!wtap_dump_set_addrinfo_list(pdh, get_addrinfo_list())) {
3427 cmdarg_err("The file format \"%s\" doesn't support name resolution information.",
3428 wtap_file_type_subtype_short_string(out_file_type));
3431 /* Now close the capture file. */
3432 if (!wtap_dump_close(pdh, &err)) {
3433 cfile_close_failure_message(save_file, err);
3437 if (print_packet_info) {
3438 if (!write_finale()) {
3439 show_print_file_io_error(errno);
3446 wtap_close(cf->provider.wth);
3447 cf->provider.wth = NULL;
3449 wtap_block_array_free(shb_hdrs);
3450 wtap_block_array_free(nrb_hdrs);
3456 process_packet_single_pass(capture_file *cf, epan_dissect_t *edt, gint64 offset,
3457 struct wtap_pkthdr *whdr, const guchar *pd,
3464 /* Count this packet. */
3467 /* If we're not running a display filter and we're not printing any
3468 packet information, we don't need to do a dissection. This means
3469 that all packets can be marked as 'passed'. */
3472 frame_data_init(&fdata, cf->count, whdr, offset, cum_bytes);
3474 /* If we're going to print packet information, or we're going to
3475 run a read filter, or we're going to process taps, set up to
3476 do a dissection and do so. (This is the one and only pass
3477 over the packets, so, if we'll be printing packet information
3478 or running taps, we'll be doing it here.) */
3480 if (print_packet_info && (gbl_resolv_flags.mac_name || gbl_resolv_flags.network_name ||
3481 gbl_resolv_flags.transport_name))
3482 /* Grab any resolved addresses */
3483 host_name_lookup_process();
3485 /* If we're running a filter, prime the epan_dissect_t with that
3488 epan_dissect_prime_with_dfilter(edt, cf->dfcode);
3490 /* This is the first and only pass, so prime the epan_dissect_t
3491 with the hfids postdissectors want on the first pass. */
3492 prime_epan_dissect_with_postdissector_wanted_hfids(edt);
3494 col_custom_prime_edt(edt, &cf->cinfo);
3496 /* We only need the columns if either
3497 1) some tap needs the columns
3499 2) we're printing packet info but we're *not* verbose; in verbose
3500 mode, we print the protocol tree, not the protocol summary.
3502 3) there is a column mapped as an individual field */
3503 if ((tap_flags & TL_REQUIRES_COLUMNS) || (print_packet_info && print_summary) || output_fields_has_cols(output_fields))
3508 frame_data_set_before_dissect(&fdata, &cf->elapsed_time,
3509 &cf->provider.ref, cf->provider.prev_dis);
3510 if (cf->provider.ref == &fdata) {
3512 cf->provider.ref = &ref_frame;
3515 if (dissect_color) {
3516 color_filters_prime_edt(edt);
3517 fdata.flags.need_colorize = 1;
3520 epan_dissect_run_with_taps(edt, cf->cd_t, whdr, frame_tvbuff_new(&fdata, pd), &fdata, cinfo);
3522 /* Run the filter if we have it. */
3524 passed = dfilter_apply_edt(cf->dfcode, edt);
3528 frame_data_set_after_dissect(&fdata, &cum_bytes);
3530 /* Process this packet. */
3531 if (print_packet_info) {
3532 /* We're printing packet information; print the information for
3535 print_packet(cf, edt);
3537 /* If we're doing "line-buffering", flush the standard output
3538 after every packet. See the comment above, for the "-l"
3539 option, for an explanation of why we do that. */
3543 if (ferror(stdout)) {
3544 show_print_file_io_error(errno);
3549 /* this must be set after print_packet() [bug #8160] */
3550 prev_dis_frame = fdata;
3551 cf->provider.prev_dis = &prev_dis_frame;
3554 prev_cap_frame = fdata;
3555 cf->provider.prev_cap = &prev_cap_frame;
3558 epan_dissect_reset(edt);
3559 frame_data_destroy(&fdata);
3565 write_preamble(capture_file *cf)
3567 switch (output_action) {
3570 return print_preamble(print_stream, cf->filename, get_ws_vcs_version_info());
3574 write_pdml_preamble(stdout, cf->filename);
3576 write_psml_preamble(&cf->cinfo, stdout);
3577 return !ferror(stdout);
3580 write_fields_preamble(output_fields, stdout);
3581 return !ferror(stdout);
3584 case WRITE_JSON_RAW:
3585 write_json_preamble(stdout);
3586 return !ferror(stdout);
3589 return !ferror(stdout);
3592 g_assert_not_reached();
3598 get_line_buf(size_t len)
3600 static char *line_bufp = NULL;
3601 static size_t line_buf_len = 256;
3602 size_t new_line_buf_len;
3604 for (new_line_buf_len = line_buf_len; len > new_line_buf_len;
3605 new_line_buf_len *= 2)
3607 if (line_bufp == NULL) {
3608 line_buf_len = new_line_buf_len;
3609 line_bufp = (char *)g_malloc(line_buf_len + 1);
3611 if (new_line_buf_len > line_buf_len) {
3612 line_buf_len = new_line_buf_len;
3613 line_bufp = (char *)g_realloc(line_bufp, line_buf_len + 1);
3620 put_string(char *dest, const char *str, size_t str_len)
3622 memcpy(dest, str, str_len);
3623 dest[str_len] = '\0';
3627 put_spaces_string(char *dest, const char *str, size_t str_len, size_t str_with_spaces)
3631 for (i = str_len; i < str_with_spaces; i++)
3634 put_string(dest, str, str_len);
3638 put_string_spaces(char *dest, const char *str, size_t str_len, size_t str_with_spaces)
3642 memcpy(dest, str, str_len);
3643 for (i = str_len; i < str_with_spaces; i++)
3646 dest[str_with_spaces] = '\0';
3650 print_columns(capture_file *cf, const epan_dissect_t *edt)
3657 col_item_t* col_item;
3658 gchar str_format[11];
3659 const color_filter_t *color_filter = NULL;
3661 line_bufp = get_line_buf(256);
3666 color_filter = edt->pi.fd->color_filter;
3668 for (i = 0; i < cf->cinfo.num_cols; i++) {
3669 col_item = &cf->cinfo.columns[i];
3670 /* Skip columns not marked as visible. */
3671 if (!get_column_visible(i))
3673 switch (col_item->col_fmt) {
3675 column_len = col_len = strlen(col_item->col_data);
3678 line_bufp = get_line_buf(buf_offset + column_len);
3679 put_spaces_string(line_bufp + buf_offset, col_item->col_data, col_len, column_len);
3685 case COL_ABS_YMD_TIME: /* XXX - wider */
3686 case COL_ABS_YDOY_TIME: /* XXX - wider */
3688 case COL_UTC_YMD_TIME: /* XXX - wider */
3689 case COL_UTC_YDOY_TIME: /* XXX - wider */
3690 column_len = col_len = strlen(col_item->col_data);
3691 if (column_len < 10)
3693 line_bufp = get_line_buf(buf_offset + column_len);
3694 put_spaces_string(line_bufp + buf_offset, col_item->col_data, col_len, column_len);
3700 case COL_DEF_DL_SRC:
3701 case COL_RES_DL_SRC:
3702 case COL_UNRES_DL_SRC:
3703 case COL_DEF_NET_SRC:
3704 case COL_RES_NET_SRC:
3705 case COL_UNRES_NET_SRC:
3706 column_len = col_len = strlen(col_item->col_data);
3707 if (column_len < 12)
3709 line_bufp = get_line_buf(buf_offset + column_len);
3710 put_spaces_string(line_bufp + buf_offset, col_item->col_data, col_len, column_len);
3716 case COL_DEF_DL_DST:
3717 case COL_RES_DL_DST:
3718 case COL_UNRES_DL_DST:
3719 case COL_DEF_NET_DST:
3720 case COL_RES_NET_DST:
3721 case COL_UNRES_NET_DST:
3722 column_len = col_len = strlen(col_item->col_data);
3723 if (column_len < 12)
3725 line_bufp = get_line_buf(buf_offset + column_len);
3726 put_string_spaces(line_bufp + buf_offset, col_item->col_data, col_len, column_len);
3730 column_len = strlen(col_item->col_data);
3731 line_bufp = get_line_buf(buf_offset + column_len);
3732 put_string(line_bufp + buf_offset, col_item->col_data, column_len);
3735 buf_offset += column_len;
3736 if (i != cf->cinfo.num_cols - 1) {
3738 * This isn't the last column, so we need to print a
3739 * separator between this column and the next.
3741 * If we printed a network source and are printing a
3742 * network destination of the same type next, separate
3743 * them with a UTF-8 right arrow; if we printed a network
3744 * destination and are printing a network source of the same
3745 * type next, separate them with a UTF-8 left arrow;
3746 * otherwise separate them with a space.
3748 * We add enough space to the buffer for " \xe2\x86\x90 "
3749 * or " \xe2\x86\x92 ", even if we're only adding " ".
3751 line_bufp = get_line_buf(buf_offset + 5);
3752 switch (col_item->col_fmt) {
3757 switch (cf->cinfo.columns[i+1].col_fmt) {
3762 g_snprintf(str_format, sizeof(str_format), "%s%s%s", delimiter_char, UTF8_RIGHTWARDS_ARROW, delimiter_char);
3763 put_string(line_bufp + buf_offset, str_format, 5);
3768 put_string(line_bufp + buf_offset, delimiter_char, 1);
3774 case COL_DEF_DL_SRC:
3775 case COL_RES_DL_SRC:
3776 case COL_UNRES_DL_SRC:
3777 switch (cf->cinfo.columns[i+1].col_fmt) {
3779 case COL_DEF_DL_DST:
3780 case COL_RES_DL_DST:
3781 case COL_UNRES_DL_DST:
3782 g_snprintf(str_format, sizeof(str_format), "%s%s%s", delimiter_char, UTF8_RIGHTWARDS_ARROW, delimiter_char);
3783 put_string(line_bufp + buf_offset, str_format, 5);
3788 put_string(line_bufp + buf_offset, delimiter_char, 1);
3794 case COL_DEF_NET_SRC:
3795 case COL_RES_NET_SRC:
3796 case COL_UNRES_NET_SRC:
3797 switch (cf->cinfo.columns[i+1].col_fmt) {
3799 case COL_DEF_NET_DST:
3800 case COL_RES_NET_DST:
3801 case COL_UNRES_NET_DST:
3802 g_snprintf(str_format, sizeof(str_format), "%s%s%s", delimiter_char, UTF8_RIGHTWARDS_ARROW, delimiter_char);
3803 put_string(line_bufp + buf_offset, str_format, 5);
3808 put_string(line_bufp + buf_offset, delimiter_char, 1);
3817 switch (cf->cinfo.columns[i+1].col_fmt) {
3822 g_snprintf(str_format, sizeof(str_format), "%s%s%s", delimiter_char, UTF8_LEFTWARDS_ARROW, delimiter_char);
3823 put_string(line_bufp + buf_offset, str_format, 5);
3828 put_string(line_bufp + buf_offset, delimiter_char, 1);
3834 case COL_DEF_DL_DST:
3835 case COL_RES_DL_DST:
3836 case COL_UNRES_DL_DST:
3837 switch (cf->cinfo.columns[i+1].col_fmt) {
3839 case COL_DEF_DL_SRC:
3840 case COL_RES_DL_SRC:
3841 case COL_UNRES_DL_SRC:
3842 g_snprintf(str_format, sizeof(str_format), "%s%s%s", delimiter_char, UTF8_LEFTWARDS_ARROW, delimiter_char);
3843 put_string(line_bufp + buf_offset, str_format, 5);
3848 put_string(line_bufp + buf_offset, delimiter_char, 1);
3854 case COL_DEF_NET_DST:
3855 case COL_RES_NET_DST:
3856 case COL_UNRES_NET_DST:
3857 switch (cf->cinfo.columns[i+1].col_fmt) {
3859 case COL_DEF_NET_SRC:
3860 case COL_RES_NET_SRC:
3861 case COL_UNRES_NET_SRC:
3862 g_snprintf(str_format, sizeof(str_format), "%s%s%s", delimiter_char, UTF8_LEFTWARDS_ARROW, delimiter_char);
3863 put_string(line_bufp + buf_offset, str_format, 5);
3868 put_string(line_bufp + buf_offset, delimiter_char, 1);
3875 put_string(line_bufp + buf_offset, delimiter_char, 1);
3882 if (dissect_color && color_filter != NULL)
3883 return print_line_color(print_stream, 0, line_bufp, &color_filter->fg_color, &color_filter->bg_color);
3885 return print_line(print_stream, 0, line_bufp);
3889 print_packet(capture_file *cf, epan_dissect_t *edt)
3891 if (print_summary || output_fields_has_cols(output_fields))
3892 /* Just fill in the columns. */
3893 epan_dissect_fill_in_columns(edt, FALSE, TRUE);
3895 /* Print summary columns and/or protocol tree */
3896 switch (output_action) {
3899 if (print_summary && !print_columns(cf, edt))
3901 if (print_details) {
3902 if (!proto_tree_print(print_details ? print_dissections_expanded : print_dissections_none,
3903 print_hex, edt, output_only_tables, print_stream))
3906 if (!print_line(print_stream, 0, separator))
3913 if (print_summary) {
3914 write_psml_columns(edt, stdout, dissect_color);
3915 return !ferror(stdout);
3917 if (print_details) {
3918 write_pdml_proto_tree(output_fields, protocolfilter, protocolfilter_flags, edt, stdout, dissect_color);
3920 return !ferror(stdout);
3925 if (print_summary) {
3926 /*No non-verbose "fields" format */
3927 g_assert_not_reached();
3929 if (print_details) {
3930 write_fields_proto_tree(output_fields, edt, &cf->cinfo, stdout);
3932 return !ferror(stdout);
3938 g_assert_not_reached();
3939 if (print_details) {
3940 write_json_proto_tree(output_fields, print_dissections_expanded,
3941 print_hex, protocolfilter, protocolfilter_flags,
3942 edt, node_children_grouper, stdout);
3943 return !ferror(stdout);
3947 case WRITE_JSON_RAW:
3949 g_assert_not_reached();
3950 if (print_details) {
3951 write_json_proto_tree(output_fields, print_dissections_none, TRUE,
3952 protocolfilter, protocolfilter_flags,
3953 edt, node_children_grouper, stdout);
3954 return !ferror(stdout);
3959 write_ek_proto_tree(output_fields, print_summary, print_hex, protocolfilter,
3960 protocolfilter_flags, edt, stdout);
3961 return !ferror(stdout);
3965 if (print_summary || print_details) {
3966 if (!print_line(print_stream, 0, ""))
3969 if (!print_hex_data(print_stream, edt))
3971 if (!print_line(print_stream, 0, separator))
3980 switch (output_action) {
3983 return print_finale(print_stream);
3987 write_pdml_finale(stdout);
3989 write_psml_finale(stdout);
3990 return !ferror(stdout);
3993 write_fields_finale(output_fields, stdout);
3994 return !ferror(stdout);
3997 case WRITE_JSON_RAW:
3998 write_json_finale(stdout);
3999 return !ferror(stdout);
4002 return !ferror(stdout);
4005 g_assert_not_reached();
4011 cf_close(capture_file *cf)
4013 g_free(cf->filename);
4017 cf_open(capture_file *cf, const char *fname, unsigned int type, gboolean is_tempfile, int *err)
4022 wth = wtap_open_offline(fname, type, err, &err_info, perform_two_pass_analysis);
4026 /* The open succeeded. Fill in the information for this file. */
4028 /* Create new epan session for dissection. */
4029 epan_free(cf->epan);
4030 cf->epan = tshark_epan_new(cf);
4032 cf->provider.wth = wth;
4033 cf->f_datalen = 0; /* not used, but set it anyway */
4035 /* Set the file name because we need it to set the follow stream filter.
4036 XXX - is that still true? We need it for other reasons, though,
4038 cf->filename = g_strdup(fname);
4040 /* Indicate whether it's a permanent or temporary file. */
4041 cf->is_tempfile = is_tempfile;
4043 /* No user changes yet. */
4044 cf->unsaved_changes = FALSE;
4046 cf->cd_t = wtap_file_type_subtype(cf->provider.wth);
4047 cf->open_type = type;
4049 cf->drops_known = FALSE;
4051 cf->snap = wtap_snapshot_length(cf->provider.wth);
4052 nstime_set_zero(&cf->elapsed_time);
4053 cf->provider.ref = NULL;
4054 cf->provider.prev_dis = NULL;
4055 cf->provider.prev_cap = NULL;
4057 cf->state = FILE_READ_IN_PROGRESS;
4059 wtap_set_cb_new_ipv4(cf->provider.wth, add_ipv4_name);
4060 wtap_set_cb_new_ipv6(cf->provider.wth, (wtap_new_ipv6_callback_t) add_ipv6_name);
4065 cfile_open_failure_message("TShark", fname, *err, err_info);
4070 show_print_file_io_error(int err)
4075 cmdarg_err("Not all the packets could be printed because there is "
4076 "no space left on the file system.");
4081 cmdarg_err("Not all the packets could be printed because you are "
4082 "too close to, or over your disk quota.");
4087 cmdarg_err("An error occurred while printing packets: %s.",
4094 * General errors and warnings are reported with an console message
4098 failure_warning_message(const char *msg_format, va_list ap)
4100 fprintf(stderr, "tshark: ");
4101 vfprintf(stderr, msg_format, ap);
4102 fprintf(stderr, "\n");
4106 * Open/create errors are reported with an console message in TShark.
4109 open_failure_message(const char *filename, int err, gboolean for_writing)
4111 fprintf(stderr, "tshark: ");
4112 fprintf(stderr, file_open_error_message(err, for_writing), filename);
4113 fprintf(stderr, "\n");
4117 * Read errors are reported with an console message in TShark.
4120 read_failure_message(const char *filename, int err)
4122 cmdarg_err("An error occurred while reading from the file \"%s\": %s.",
4123 filename, g_strerror(err));
4127 * Write errors are reported with an console message in TShark.
4130 write_failure_message(const char *filename, int err)
4132 cmdarg_err("An error occurred while writing to the file \"%s\": %s.",
4133 filename, g_strerror(err));
4136 static void reset_epan_mem(capture_file *cf,epan_dissect_t *edt, gboolean tree, gboolean visual)
4138 if (!epan_auto_reset || (cf->count < epan_auto_reset_count))
4141 fprintf(stderr, "resetting session.\n");
4143 epan_dissect_cleanup(edt);
4144 epan_free(cf->epan);
4146 cf->epan = tshark_epan_new(cf);
4147 epan_dissect_init(edt, cf->epan, tree, visual);
4152 * Report additional information for an error in command-line arguments.
4155 failure_message_cont(const char *msg_format, va_list ap)
4157 vfprintf(stderr, msg_format, ap);
4158 fprintf(stderr, "\n");
4162 * Editor modelines - https://www.wireshark.org/tools/modelines.html
4167 * indent-tabs-mode: nil
4170 * vi: set shiftwidth=2 tabstop=8 expandtab:
4171 * :indentSize=2:tabSize=8:noTabs=true: