3 * Text-mode variant of Wireshark, along the lines of tcpdump and snoop,
4 * by Gilbert Ramirez <gram@alumni.rice.edu> and Guy Harris <guy@alum.mit.edu>.
6 * Wireshark - Network traffic analyzer
7 * By Gerald Combs <gerald@wireshark.org>
8 * Copyright 1998 Gerald Combs
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version 2
13 * of the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
39 #ifdef HAVE_WINSOCK2_H
40 # include <winsock2.h>
48 # include <sys/capability.h>
51 #ifndef HAVE_GETOPT_LONG
52 #include "wsutil/wsgetopt.h"
57 #include <epan/exceptions.h>
58 #include <epan/epan-int.h>
59 #include <epan/epan.h>
61 #include <wsutil/clopts_common.h>
62 #include <wsutil/cmdarg_err.h>
63 #include <wsutil/crash_info.h>
64 #include <wsutil/filesystem.h>
65 #include <wsutil/file_util.h>
66 #include <wsutil/privileges.h>
67 #include <wsutil/report_message.h>
68 #include <ws_version_info.h>
69 #include <wiretap/wtap_opttypes.h>
70 #include <wiretap/pcapng.h>
73 #include <epan/timestamp.h>
74 #include <epan/packet.h>
76 #include <epan/wslua/init_wslua.h>
78 #include "frame_tvbuff.h"
79 #include <epan/disabled_protos.h>
80 #include <epan/prefs.h>
81 #include <epan/column.h>
82 #include <epan/decode_as.h>
83 #include <epan/print.h>
84 #include <epan/addr_resolv.h>
86 #include "ui/capture_ui_utils.h"
89 #include "ui/ui_util.h"
90 #include "ui/decode_as_utils.h"
91 #include "ui/filter_files.h"
92 #include "ui/cli/tshark-tap.h"
93 #include "ui/cli/tap-exportobject.h"
94 #include "ui/tap_export_pdu.h"
95 #include "ui/dissect_opts.h"
96 #include "ui/failure_message.h"
97 #if defined(HAVE_LIBSMI)
98 #include "epan/oids.h"
100 #if defined(HAVE_GEOIP)
101 #include "epan/geoip_db.h"
103 #include "register.h"
104 #include <epan/epan_dissect.h>
105 #include <epan/tap.h>
106 #include <epan/stat_tap_ui.h>
107 #include <epan/conversation_table.h>
108 #include <epan/srt_table.h>
109 #include <epan/rtd_table.h>
110 #include <epan/ex-opt.h>
111 #include <epan/exported_pdu.h>
113 #include "capture_opts.h"
115 #include "caputils/capture-pcap-util.h"
118 #include "caputils/capture_ifinfo.h"
120 #include "caputils/capture-wpcap.h"
121 #include <wsutil/os_version_info.h>
122 #include <wsutil/unicode-utils.h>
124 #include <capchild/capture_session.h>
125 #include <capchild/capture_sync.h>
126 #include <capture_info.h>
127 #endif /* HAVE_LIBPCAP */
129 #include <epan/funnel.h>
131 #include <wsutil/str_util.h>
132 #include <wsutil/utf8_entities.h>
139 #include <wsutil/plugins.h>
143 #define INVALID_OPTION 1
144 #define INVALID_INTERFACE 2
145 #define INVALID_FILE 2
146 #define INVALID_FILTER 2
147 #define INVALID_EXPORT 2
148 #define INVALID_CAPABILITY 2
149 #define INVALID_TAP 2
150 #define INVALID_DATA_LINK 2
151 #define INVALID_TIMESTAMP_TYPE 2
152 #define INVALID_CAPTURE 2
153 #define INIT_FAILED 2
156 * values 128..65535 are capture+dissect options, 65536 is used by
157 * ui/commandline.c, so start tshark-specific options 1000 after this
159 #define LONGOPT_COLOR (65536+1000)
160 #define LONGOPT_NO_DUPLICATE_KEYS (65536+1001)
163 #define tshark_debug(...) g_warning(__VA_ARGS__)
165 #define tshark_debug(...)
168 static guint32 cum_bytes;
169 static const frame_data *ref;
170 static frame_data ref_frame;
171 static frame_data *prev_dis;
172 static frame_data prev_dis_frame;
173 static frame_data *prev_cap;
174 static frame_data prev_cap_frame;
176 static gboolean perform_two_pass_analysis;
177 static guint32 epan_auto_reset_count = 0;
178 static gboolean epan_auto_reset = FALSE;
181 * The way the packet decode is to be written.
184 WRITE_TEXT, /* summary or detail text */
185 WRITE_XML, /* PDML or PSML */
186 WRITE_FIELDS, /* User defined list of fields */
187 WRITE_JSON, /* JSON */
188 WRITE_JSON_RAW, /* JSON only raw hex */
189 WRITE_EK /* JSON bulk insert to Elasticsearch */
190 /* Add CSV and the like here */
193 static output_action_e output_action;
194 static gboolean do_dissection; /* TRUE if we have to dissect each packet */
195 static gboolean print_packet_info; /* TRUE if we're to print packet information */
196 static gint print_summary = -1; /* TRUE if we're to print packet summary information */
197 static gboolean print_details; /* TRUE if we're to print packet details information */
198 static gboolean print_hex; /* TRUE if we're to print hex/ascci information */
199 static gboolean line_buffered;
200 static gboolean really_quiet = FALSE;
201 static gchar* delimiter_char = " ";
202 static gboolean dissect_color = FALSE;
204 static print_format_e print_format = PR_FMT_TEXT;
205 static print_stream_t *print_stream = NULL;
207 static output_fields_t* output_fields = NULL;
208 static gchar **protocolfilter = NULL;
209 static pf_flags protocolfilter_flags = PF_NONE;
211 static gboolean no_duplicate_keys = FALSE;
212 static proto_node_children_grouper_func node_children_grouper = proto_node_group_children_by_unique;
214 /* The line separator used between packets, changeable via the -S option */
215 static const char *separator = "";
219 * TRUE if we're to print packet counts to keep track of captured packets.
221 static gboolean print_packet_counts;
223 static capture_options global_capture_opts;
224 static capture_session global_capture_session;
225 static info_data_t global_info_data;
228 static gboolean infodelay; /* if TRUE, don't print capture info in SIGINFO handler */
229 static gboolean infoprint; /* if TRUE, print capture info after clearing infodelay */
232 static gboolean capture(void);
233 static void report_counts(void);
235 static BOOL WINAPI capture_cleanup(DWORD);
237 static void capture_cleanup(int);
239 static void report_counts_siginfo(int);
243 #else /* HAVE_LIBPCAP */
245 static char *output_file_name;
247 #endif /* HAVE_LIBPCAP */
249 static void reset_epan_mem(capture_file *cf, epan_dissect_t *edt, gboolean tree, gboolean visual);
250 static gboolean process_cap_file(capture_file *, char *, int, gboolean, int, gint64);
251 static gboolean process_packet_single_pass(capture_file *cf,
252 epan_dissect_t *edt, gint64 offset, struct wtap_pkthdr *whdr,
253 const guchar *pd, guint tap_flags);
254 static void show_print_file_io_error(int err);
255 static gboolean write_preamble(capture_file *cf);
256 static gboolean print_packet(capture_file *cf, epan_dissect_t *edt);
257 static gboolean write_finale(void);
259 static void failure_warning_message(const char *msg_format, va_list ap);
260 static void open_failure_message(const char *filename, int err,
261 gboolean for_writing);
262 static void read_failure_message(const char *filename, int err);
263 static void write_failure_message(const char *filename, int err);
264 static void failure_message_cont(const char *msg_format, va_list ap);
268 static GHashTable *output_only_tables = NULL;
271 const char *sstr; /* The short string */
272 const char *lstr; /* The long string */
276 string_compare(gconstpointer a, gconstpointer b)
278 return strcmp(((const struct string_elem *)a)->sstr,
279 ((const struct string_elem *)b)->sstr);
283 string_elem_print(gpointer data, gpointer not_used _U_)
285 fprintf(stderr, " %s - %s\n",
286 ((struct string_elem *)data)->sstr,
287 ((struct string_elem *)data)->lstr);
291 list_capture_types(void) {
293 struct string_elem *captypes;
296 captypes = g_new(struct string_elem, WTAP_NUM_FILE_TYPES_SUBTYPES);
298 fprintf(stderr, "tshark: The available capture file types for the \"-F\" flag are:\n");
299 for (i = 0; i < WTAP_NUM_FILE_TYPES_SUBTYPES; i++) {
300 if (wtap_dump_can_open(i)) {
301 captypes[i].sstr = wtap_file_type_subtype_short_string(i);
302 captypes[i].lstr = wtap_file_type_subtype_string(i);
303 list = g_slist_insert_sorted(list, &captypes[i], string_compare);
306 g_slist_foreach(list, string_elem_print, NULL);
312 list_read_capture_types(void) {
314 struct string_elem *captypes;
316 const char *magic = "Magic-value-based";
317 const char *heuristic = "Heuristics-based";
319 /* this is a hack, but WTAP_NUM_FILE_TYPES_SUBTYPES is always >= number of open routines so we're safe */
320 captypes = g_new(struct string_elem, WTAP_NUM_FILE_TYPES_SUBTYPES);
322 fprintf(stderr, "tshark: The available read file types for the \"-X read_format:\" option are:\n");
323 for (i = 0; open_routines[i].name != NULL; i++) {
324 captypes[i].sstr = open_routines[i].name;
325 captypes[i].lstr = (open_routines[i].type == OPEN_INFO_MAGIC) ? magic : heuristic;
326 list = g_slist_insert_sorted(list, &captypes[i], string_compare);
328 g_slist_foreach(list, string_elem_print, NULL);
334 print_usage(FILE *output)
336 fprintf(output, "\n");
337 fprintf(output, "Usage: tshark [options] ...\n");
338 fprintf(output, "\n");
341 fprintf(output, "Capture interface:\n");
342 fprintf(output, " -i <interface> name or idx of interface (def: first non-loopback)\n");
343 fprintf(output, " -f <capture filter> packet filter in libpcap filter syntax\n");
344 #ifdef HAVE_PCAP_CREATE
345 fprintf(output, " -s <snaplen> packet snapshot length (def: appropriate maximum)\n");
347 fprintf(output, " -s <snaplen> packet snapshot length (def: %u)\n", WTAP_MAX_PACKET_SIZE_STANDARD);
349 fprintf(output, " -p don't capture in promiscuous mode\n");
350 #ifdef HAVE_PCAP_CREATE
351 fprintf(output, " -I capture in monitor mode, if available\n");
353 #ifdef CAN_SET_CAPTURE_BUFFER_SIZE
354 fprintf(output, " -B <buffer size> size of kernel buffer (def: %dMB)\n", DEFAULT_CAPTURE_BUFFER_SIZE);
356 fprintf(output, " -y <link type> link layer type (def: first appropriate)\n");
357 fprintf(output, " --time-stamp-type <type> timestamp method for interface\n");
358 fprintf(output, " -D print list of interfaces and exit\n");
359 fprintf(output, " -L print list of link-layer types of iface and exit\n");
360 fprintf(output, " --list-time-stamp-types print list of timestamp types for iface and exit\n");
361 fprintf(output, "\n");
362 fprintf(output, "Capture stop conditions:\n");
363 fprintf(output, " -c <packet count> stop after n packets (def: infinite)\n");
364 fprintf(output, " -a <autostop cond.> ... duration:NUM - stop after NUM seconds\n");
365 fprintf(output, " filesize:NUM - stop this file after NUM KB\n");
366 fprintf(output, " files:NUM - stop after NUM files\n");
367 /*fprintf(output, "\n");*/
368 fprintf(output, "Capture output:\n");
369 fprintf(output, " -b <ringbuffer opt.> ... duration:NUM - switch to next file after NUM secs\n");
370 fprintf(output, " interval:NUM - create time intervals of NUM secs\n");
371 fprintf(output, " filesize:NUM - switch to next file after NUM KB\n");
372 fprintf(output, " files:NUM - ringbuffer: replace after NUM files\n");
373 #endif /* HAVE_LIBPCAP */
374 #ifdef HAVE_PCAP_REMOTE
375 fprintf(output, "RPCAP options:\n");
376 fprintf(output, " -A <user>:<password> use RPCAP password authentication\n");
378 /*fprintf(output, "\n");*/
379 fprintf(output, "Input file:\n");
380 fprintf(output, " -r <infile> set the filename to read from (- to read from stdin)\n");
382 fprintf(output, "\n");
383 fprintf(output, "Processing:\n");
384 fprintf(output, " -2 perform a two-pass analysis\n");
385 fprintf(output, " -M <packet count> perform session auto reset\n");
386 fprintf(output, " -R <read filter> packet Read filter in Wireshark display filter syntax\n");
387 fprintf(output, " (requires -2)\n");
388 fprintf(output, " -Y <display filter> packet displaY filter in Wireshark display filter\n");
389 fprintf(output, " syntax\n");
390 fprintf(output, " -n disable all name resolutions (def: all enabled)\n");
391 fprintf(output, " -N <name resolve flags> enable specific name resolution(s): \"mnNtCd\"\n");
392 fprintf(output, " -d %s ...\n", DECODE_AS_ARG_TEMPLATE);
393 fprintf(output, " \"Decode As\", see the man page for details\n");
394 fprintf(output, " Example: tcp.port==8888,http\n");
395 fprintf(output, " -H <hosts file> read a list of entries from a hosts file, which will\n");
396 fprintf(output, " then be written to a capture file. (Implies -W n)\n");
397 fprintf(output, " --enable-protocol <proto_name>\n");
398 fprintf(output, " enable dissection of proto_name\n");
399 fprintf(output, " --disable-protocol <proto_name>\n");
400 fprintf(output, " disable dissection of proto_name\n");
401 fprintf(output, " --enable-heuristic <short_name>\n");
402 fprintf(output, " enable dissection of heuristic protocol\n");
403 fprintf(output, " --disable-heuristic <short_name>\n");
404 fprintf(output, " disable dissection of heuristic protocol\n");
406 /*fprintf(output, "\n");*/
407 fprintf(output, "Output:\n");
408 fprintf(output, " -w <outfile|-> write packets to a pcap-format file named \"outfile\"\n");
409 fprintf(output, " (or to the standard output for \"-\")\n");
410 fprintf(output, " -C <config profile> start with specified configuration profile\n");
411 fprintf(output, " -F <output file type> set the output file type, default is pcapng\n");
412 fprintf(output, " an empty \"-F\" option will list the file types\n");
413 fprintf(output, " -V add output of packet tree (Packet Details)\n");
414 fprintf(output, " -O <protocols> Only show packet details of these protocols, comma\n");
415 fprintf(output, " separated\n");
416 fprintf(output, " -P print packet summary even when writing to a file\n");
417 fprintf(output, " -S <separator> the line separator to print between packets\n");
418 fprintf(output, " -x add output of hex and ASCII dump (Packet Bytes)\n");
419 fprintf(output, " -T pdml|ps|psml|json|jsonraw|ek|tabs|text|fields|?\n");
420 fprintf(output, " format of text output (def: text)\n");
421 fprintf(output, " -j <protocolfilter> protocols layers filter if -T ek|pdml|json selected\n");
422 fprintf(output, " (e.g. \"ip ip.flags text\", filter does not expand child\n");
423 fprintf(output, " nodes, unless child is specified also in the filter)\n");
424 fprintf(output, " -J <protocolfilter> top level protocol filter if -T ek|pdml|json selected\n");
425 fprintf(output, " (e.g. \"http tcp\", filter which expands all child nodes)\n");
426 fprintf(output, " -e <field> field to print if -Tfields selected (e.g. tcp.port,\n");
427 fprintf(output, " _ws.col.Info)\n");
428 fprintf(output, " this option can be repeated to print multiple fields\n");
429 fprintf(output, " -E<fieldsoption>=<value> set options for output when -Tfields selected:\n");
430 fprintf(output, " bom=y|n print a UTF-8 BOM\n");
431 fprintf(output, " header=y|n switch headers on and off\n");
432 fprintf(output, " separator=/t|/s|<char> select tab, space, printable character as separator\n");
433 fprintf(output, " occurrence=f|l|a print first, last or all occurrences of each field\n");
434 fprintf(output, " aggregator=,|/s|<char> select comma, space, printable character as\n");
435 fprintf(output, " aggregator\n");
436 fprintf(output, " quote=d|s|n select double, single, no quotes for values\n");
437 fprintf(output, " -t a|ad|d|dd|e|r|u|ud|? output format of time stamps (def: r: rel. to first)\n");
438 fprintf(output, " -u s|hms output format of seconds (def: s: seconds)\n");
439 fprintf(output, " -l flush standard output after each packet\n");
440 fprintf(output, " -q be more quiet on stdout (e.g. when using statistics)\n");
441 fprintf(output, " -Q only log true errors to stderr (quieter than -q)\n");
442 fprintf(output, " -g enable group read access on the output file(s)\n");
443 fprintf(output, " -W n Save extra information in the file, if supported.\n");
444 fprintf(output, " n = write network address resolution information\n");
445 fprintf(output, " -X <key>:<value> eXtension options, see the man page for details\n");
446 fprintf(output, " -U tap_name PDUs export mode, see the man page for details\n");
447 fprintf(output, " -z <statistics> various statistics, see the man page for details\n");
448 fprintf(output, " --capture-comment <comment>\n");
449 fprintf(output, " add a capture comment to the newly created\n");
450 fprintf(output, " output file (only for pcapng)\n");
451 fprintf(output, " --export-objects <protocol>,<destdir> save exported objects for a protocol to\n");
452 fprintf(output, " a directory named \"destdir\"\n");
453 fprintf(output, " --color color output text similarly to the Wireshark GUI,\n");
454 fprintf(output, " requires a terminal with 24-bit color support\n");
455 fprintf(output, " Also supplies color attributes to pdml and psml formats\n");
456 fprintf(output, " (Note that attributes are nonstandard)\n");
457 fprintf(output, " --no-duplicate-keys If -T json is specified, merge duplicate keys in an object\n");
458 fprintf(output, " into a single key with as value a json array containing all\n");
459 fprintf(output, " values");
461 fprintf(output, "\n");
462 fprintf(output, "Miscellaneous:\n");
463 fprintf(output, " -h display this help and exit\n");
464 fprintf(output, " -v display version info and exit\n");
465 fprintf(output, " -o <name>:<value> ... override preference setting\n");
466 fprintf(output, " -K <keytab> keytab file to use for kerberos decryption\n");
467 fprintf(output, " -G [report] dump one of several available reports and exit\n");
468 fprintf(output, " default report=\"fields\"\n");
469 fprintf(output, " use \"-G ?\" for more help\n");
471 fprintf(output, "\n");
472 fprintf(output, "WARNING: dumpcap will enable kernel BPF JIT compiler if available.\n");
473 fprintf(output, "You might want to reset it\n");
474 fprintf(output, "By doing \"echo 0 > /proc/sys/net/core/bpf_jit_enable\"\n");
475 fprintf(output, "\n");
481 glossary_option_help(void)
487 fprintf(output, "TShark (Wireshark) %s\n", get_ws_vcs_version_info());
489 fprintf(output, "\n");
490 fprintf(output, "Usage: tshark -G [report]\n");
491 fprintf(output, "\n");
492 fprintf(output, "Glossary table reports:\n");
493 fprintf(output, " -G column-formats dump column format codes and exit\n");
494 fprintf(output, " -G decodes dump \"layer type\"/\"decode as\" associations and exit\n");
495 fprintf(output, " -G dissector-tables dump dissector table names, types, and properties\n");
496 fprintf(output, " -G fieldcount dump count of header fields and exit\n");
497 fprintf(output, " -G fields dump fields glossary and exit\n");
498 fprintf(output, " -G ftypes dump field type basic and descriptive names\n");
499 fprintf(output, " -G heuristic-decodes dump heuristic dissector tables\n");
500 fprintf(output, " -G plugins dump installed plugins and exit\n");
501 fprintf(output, " -G protocols dump protocols in registration database and exit\n");
502 fprintf(output, " -G values dump value, range, true/false strings and exit\n");
503 fprintf(output, "\n");
504 fprintf(output, "Preference reports:\n");
505 fprintf(output, " -G currentprefs dump current preferences and exit\n");
506 fprintf(output, " -G defaultprefs dump default preferences and exit\n");
507 fprintf(output, " -G folders dump about:folders\n");
508 fprintf(output, "\n");
512 tshark_log_handler (const gchar *log_domain, GLogLevelFlags log_level,
513 const gchar *message, gpointer user_data)
515 /* ignore log message, if log_level isn't interesting based
516 upon the console log preferences.
517 If the preferences haven't been loaded loaded yet, display the
520 The default console_log_level preference value is such that only
521 ERROR, CRITICAL and WARNING level messages are processed;
522 MESSAGE, INFO and DEBUG level messages are ignored.
524 XXX: Aug 07, 2009: Prior tshark g_log code was hardwired to process only
525 ERROR and CRITICAL level messages so the current code is a behavioral
526 change. The current behavior is the same as in Wireshark.
528 if ((log_level & G_LOG_LEVEL_MASK & prefs.console_log_level) == 0 &&
529 prefs.console_log_level != 0) {
533 g_log_default_handler(log_domain, log_level, message, user_data);
538 print_current_user(void) {
539 gchar *cur_user, *cur_group;
541 if (started_with_special_privs()) {
542 cur_user = get_cur_username();
543 cur_group = get_cur_groupname();
544 fprintf(stderr, "Running as user \"%s\" and group \"%s\".",
545 cur_user, cur_group);
548 if (running_with_special_privs()) {
549 fprintf(stderr, " This could be dangerous.");
551 fprintf(stderr, "\n");
556 get_tshark_compiled_version_info(GString *str)
558 /* Capture libraries */
559 get_compiled_caplibs_version(str);
563 get_tshark_runtime_version_info(GString *str)
566 /* Capture libraries */
567 g_string_append(str, ", ");
568 get_runtime_caplibs_version(str);
571 /* stuff used by libwireshark */
572 epan_get_runtime_version_info(str);
578 const char *constpath;
580 #if defined(HAVE_LIBSMI) || defined(HAVE_GEOIP) || defined(HAVE_EXTCAP)
588 * Fetching the "File" dialogs folder not implemented.
589 * This is arguably just a pwd for a ui/cli .
593 printf("%-21s\t%s\n", "Temp:", g_get_tmp_dir());
596 path = get_persconffile_path("", FALSE);
597 printf("%-21s\t%s\n", "Personal configuration:", path);
601 constpath = get_datafile_dir();
602 if (constpath != NULL) {
603 printf("%-21s\t%s\n", "Global configuration:", constpath);
607 constpath = get_systemfile_dir();
608 printf("%-21s\t%s\n", "System:", constpath);
611 constpath = get_progfile_dir();
612 printf("%-21s\t%s\n", "Program:", constpath);
614 #if defined(HAVE_PLUGINS) || defined(HAVE_LUA)
616 printf("%-21s\t%s\n", "Personal Plugins:", get_plugins_pers_dir());
619 printf("%-21s\t%s\n", "Global Plugins:", get_plugins_dir());
624 path = geoip_db_get_paths();
626 resultArray = g_strsplit(path, G_SEARCHPATH_SEPARATOR_S, 10);
628 for(i = 0; resultArray[i]; i++)
629 printf("%-21s\t%s\n", "GeoIP path:", g_strstrip(resultArray[i]));
631 g_strfreev(resultArray);
637 path = oid_get_default_mib_path();
638 resultArray = g_strsplit(path, G_SEARCHPATH_SEPARATOR_S, 10);
640 for(i = 0; resultArray[i]; i++)
641 printf("%-21s\t%s\n", "MIB/PIB path:", g_strstrip(resultArray[i]));
643 g_strfreev(resultArray);
649 constpath = get_extcap_dir();
651 resultArray = g_strsplit(constpath, G_SEARCHPATH_SEPARATOR_S, 10);
652 for(i = 0; resultArray[i]; i++)
653 printf("%-21s\t%s\n", "Extcap path:", g_strstrip(resultArray[i]));
655 g_strfreev(resultArray);
661 main(int argc, char *argv[])
663 GString *comp_info_str;
664 GString *runtime_info_str;
665 char *init_progfile_dir_error;
667 static const struct option long_options[] = {
668 {"help", no_argument, NULL, 'h'},
669 {"version", no_argument, NULL, 'v'},
670 LONGOPT_CAPTURE_COMMON
671 LONGOPT_DISSECT_COMMON
672 {"export-objects", required_argument, NULL, LONGOPT_EXPORT_OBJECTS},
673 {"color", no_argument, NULL, LONGOPT_COLOR},
674 {"no-duplicate-keys", no_argument, NULL, LONGOPT_NO_DUPLICATE_KEYS},
677 gboolean arg_error = FALSE;
685 volatile gboolean success;
686 volatile int exit_status = EXIT_SUCCESS;
688 int caps_queries = 0;
689 gboolean start_capture = FALSE;
693 gboolean capture_option_specified = FALSE;
695 gboolean quiet = FALSE;
696 #ifdef PCAP_NG_DEFAULT
697 volatile int out_file_type = WTAP_FILE_TYPE_SUBTYPE_PCAPNG;
699 volatile int out_file_type = WTAP_FILE_TYPE_SUBTYPE_PCAP;
701 volatile gboolean out_file_name_res = FALSE;
702 volatile int in_file_type = WTAP_TYPE_AUTO;
703 gchar *volatile cf_name = NULL;
704 gchar *rfilter = NULL;
705 gchar *dfilter = NULL;
706 #ifdef HAVE_PCAP_OPEN_DEAD
707 struct bpf_program fcode;
709 dfilter_t *rfcode = NULL;
710 dfilter_t *dfcode = NULL;
714 gchar *output_only = NULL;
715 gchar *volatile pdu_export_arg = NULL;
716 const char *volatile exp_pdu_filename = NULL;
717 exp_pdu_t exp_pdu_tap_data;
720 * The leading + ensures that getopt_long() does not permute the argv[]
723 * We have to make sure that the first getopt_long() preserves the content
724 * of argv[] for the subsequent getopt_long() call.
726 * We use getopt_long() in both cases to ensure that we're using a routine
727 * whose permutation behavior we can control in the same fashion on all
728 * platforms, and so that, if we ever need to process a long argument before
729 * doing further initialization, we can do so.
731 * Glibc and Solaris libc document that a leading + disables permutation
732 * of options, regardless of whether POSIXLY_CORRECT is set or not; *BSD
733 * and macOS don't document it, but do so anyway.
735 * We do *not* use a leading - because the behavior of a leading - is
736 * platform-dependent.
738 #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:"
740 static const char optstring[] = OPTSTRING;
742 tshark_debug("tshark started with %d args", argc);
744 /* Set the C-language locale to the native environment. */
745 setlocale(LC_ALL, "");
747 cmdarg_err_init(failure_warning_message, failure_message_cont);
750 arg_list_utf_16to8(argc, argv);
751 create_app_running_mutex();
752 #if !GLIB_CHECK_VERSION(2,31,0)
758 * Get credential information for later use, and drop privileges
759 * before doing anything else.
760 * Let the user know if anything happened.
762 init_process_policies();
763 relinquish_special_privs_perm();
764 print_current_user();
767 * Attempt to get the pathname of the directory containing the
770 init_progfile_dir_error = init_progfile_dir(argv[0], main);
771 if (init_progfile_dir_error != NULL) {
773 "tshark: Can't get pathname of directory containing the tshark program: %s.\n"
774 "It won't be possible to capture traffic.\n"
775 "Report this to the Wireshark developers.",
776 init_progfile_dir_error);
777 g_free(init_progfile_dir_error);
780 initialize_funnel_ops();
783 ws_init_dll_search_path();
785 /* Load wpcap if possible. Do this before collecting the run-time version information */
788 /* Warn the user if npf.sys isn't loaded. */
789 if (!npf_sys_is_running() && get_windows_major_version() >= 6) {
790 fprintf(stderr, "The NPF driver isn't running. You may have trouble "
791 "capturing or\nlisting interfaces.\n");
793 #endif /* HAVE_LIBPCAP */
796 /* Get the compile-time version information string */
797 comp_info_str = get_compiled_version_info(get_tshark_compiled_version_info,
798 epan_get_compiled_version_info);
800 /* Get the run-time version information string */
801 runtime_info_str = get_runtime_version_info(get_tshark_runtime_version_info);
803 /* Add it to the information to be reported on a crash. */
804 ws_add_crash_info("TShark (Wireshark) %s\n"
809 get_ws_vcs_version_info(), comp_info_str->str, runtime_info_str->str);
810 g_string_free(comp_info_str, TRUE);
811 g_string_free(runtime_info_str, TRUE);
813 /* Fail sometimes. Useful for testing fuzz scripts. */
814 /* if (g_random_int_range(0, 100) < 5) abort(); */
817 * In order to have the -X opts assigned before the wslua machine starts
818 * we need to call getopt_long before epan_init() gets called.
820 * In order to handle, for example, -o options, we also need to call it
821 * *after* epan_init() gets called, so that the dissectors have had a
822 * chance to register their preferences.
824 * XXX - can we do this all with one getopt_long() call, saving the
825 * arguments we can't handle until after initializing libwireshark,
826 * and then process them after initializing libwireshark?
830 while ((opt = getopt_long(argc, argv, optstring, long_options, NULL)) != -1) {
832 case 'C': /* Configuration Profile */
833 if (profile_exists (optarg, FALSE)) {
834 set_profile_name (optarg);
836 cmdarg_err("Configuration Profile \"%s\" does not exist", optarg);
837 exit_status = INVALID_OPTION;
841 case 'P': /* Print packet summary info even when writing to a file */
842 print_packet_info = TRUE;
843 print_summary = TRUE;
845 case 'O': /* Only output these protocols */
846 output_only = g_strdup(optarg);
848 case 'V': /* Verbose */
849 print_details = TRUE;
850 print_packet_info = TRUE;
852 case 'x': /* Print packet data in hex (and ASCII) */
854 /* The user asked for hex output, so let's ensure they get it,
855 * even if they're writing to a file.
857 print_packet_info = TRUE;
868 * Print packet summary information is the default, unless either -V or -x
869 * were specified and -P was not. Note that this is new behavior, which
870 * allows for the possibility of printing only hex/ascii output without
871 * necessarily requiring that either the summary or details be printed too.
873 if (print_summary == -1)
874 print_summary = (print_details || print_hex) ? FALSE : TRUE;
876 /** Send All g_log messages to our own handler **/
880 G_LOG_LEVEL_CRITICAL|
885 G_LOG_FLAG_FATAL|G_LOG_FLAG_RECURSION;
887 g_log_set_handler(NULL,
888 (GLogLevelFlags)log_flags,
889 tshark_log_handler, NULL /* user_data */);
890 g_log_set_handler(LOG_DOMAIN_MAIN,
891 (GLogLevelFlags)log_flags,
892 tshark_log_handler, NULL /* user_data */);
895 g_log_set_handler(LOG_DOMAIN_CAPTURE,
896 (GLogLevelFlags)log_flags,
897 tshark_log_handler, NULL /* user_data */);
898 g_log_set_handler(LOG_DOMAIN_CAPTURE_CHILD,
899 (GLogLevelFlags)log_flags,
900 tshark_log_handler, NULL /* user_data */);
903 init_report_message(failure_warning_message, failure_warning_message,
904 open_failure_message, read_failure_message,
905 write_failure_message);
908 capture_opts_init(&global_capture_opts);
909 capture_session_init(&global_capture_session, &cfile);
912 timestamp_set_type(TS_RELATIVE);
913 timestamp_set_precision(TS_PREC_AUTO);
914 timestamp_set_seconds_type(TS_SECONDS_DEFAULT);
919 /* Register all the plugin types we have. */
920 epan_register_plugin_types(); /* Types known to libwireshark */
922 /* Scan for plugins. This does *not* call their registration routines;
923 that's done later. */
924 scan_plugins(REPORT_LOAD_FAILURE);
926 /* Register all libwiretap plugin modules. */
927 register_all_wiretap_modules();
930 /* Register all dissectors; we must do this before checking for the
931 "-G" flag, as the "-G" flag dumps information registered by the
932 dissectors, and we must do it before we read the preferences, in
933 case any dissectors register preferences. */
934 if (!epan_init(register_all_protocols, register_all_protocol_handoffs, NULL,
936 exit_status = INIT_FAILED;
940 /* Register all tap listeners; we do this before we parse the arguments,
941 as the "-z" argument can specify a registered tap. */
943 /* we register the plugin taps before the other taps because
944 stats_tree taps plugins will be registered as tap listeners
945 by stats_tree_stat.c and need to registered before that */
947 register_all_plugin_tap_listeners();
950 extcap_register_preferences();
952 register_all_tap_listeners();
953 conversation_table_set_gui_info(init_iousers);
954 hostlist_table_set_gui_info(init_hostlists);
955 srt_table_iterate_tables(register_srt_tables, NULL);
956 rtd_table_iterate_tables(register_rtd_tables, NULL);
957 new_stat_tap_iterate_tables(register_simple_stat_tables, NULL);
959 /* If invoked with the "-G" flag, we dump out information based on
960 the argument to the "-G" flag; if no argument is specified,
961 for backwards compatibility we dump out a glossary of display
964 XXX - we do this here, for now, to support "-G" with no arguments.
965 If none of our build or other processes uses "-G" with no arguments,
966 we can just process it with the other arguments. */
967 if (argc >= 2 && strcmp(argv[1], "-G") == 0) {
968 proto_initialize_all_prefixes();
971 proto_registrar_dump_fields();
973 if (strcmp(argv[2], "column-formats") == 0)
974 column_dump_column_formats();
975 else if (strcmp(argv[2], "currentprefs") == 0) {
976 epan_load_settings();
979 else if (strcmp(argv[2], "decodes") == 0)
980 dissector_dump_decodes();
981 else if (strcmp(argv[2], "defaultprefs") == 0)
983 else if (strcmp(argv[2], "dissector-tables") == 0)
984 dissector_dump_dissector_tables();
985 else if (strcmp(argv[2], "fieldcount") == 0) {
986 /* return value for the test suite */
987 exit_status = proto_registrar_dump_fieldcount();
989 } else if (strcmp(argv[2], "fields") == 0)
990 proto_registrar_dump_fields();
991 else if (strcmp(argv[2], "folders") == 0)
993 else if (strcmp(argv[2], "ftypes") == 0)
994 proto_registrar_dump_ftypes();
995 else if (strcmp(argv[2], "heuristic-decodes") == 0)
996 dissector_dump_heur_decodes();
997 else if (strcmp(argv[2], "plugins") == 0) {
1002 wslua_plugins_dump_all();
1005 else if (strcmp(argv[2], "protocols") == 0)
1006 proto_registrar_dump_protocols();
1007 else if (strcmp(argv[2], "values") == 0)
1008 proto_registrar_dump_values();
1009 else if (strcmp(argv[2], "?") == 0)
1010 glossary_option_help();
1011 else if (strcmp(argv[2], "-?") == 0)
1012 glossary_option_help();
1014 cmdarg_err("Invalid \"%s\" option for -G flag, enter -G ? for more help.", argv[2]);
1015 exit_status = INVALID_OPTION;
1019 exit_status = EXIT_SUCCESS;
1023 tshark_debug("tshark reading settings");
1025 /* Load libwireshark settings from the current profile. */
1026 prefs_p = epan_load_settings();
1028 read_filter_list(CFILTER_LIST);
1030 cap_file_init(&cfile);
1032 /* Print format defaults to this. */
1033 print_format = PR_FMT_TEXT;
1034 delimiter_char = " ";
1036 output_fields = output_fields_new();
1039 * To reset the options parser, set optreset to 1 on platforms that
1040 * have optreset (documented in *BSD and macOS, apparently present but
1041 * not documented in Solaris - the Illumos repository seems to
1042 * suggest that the first Solaris getopt_long(), at least as of 2004,
1043 * was based on the NetBSD one, it had optreset) and set optind to 1,
1044 * and set optind to 0 otherwise (documented as working in the GNU
1045 * getopt_long(). Setting optind to 0 didn't originally work in the
1046 * NetBSD one, but that was added later - we don't want to depend on
1047 * it if we have optreset).
1049 * Also reset opterr to 1, so that error messages are printed by
1052 #ifdef HAVE_OPTRESET
1060 /* Now get our args */
1061 while ((opt = getopt_long(argc, argv, optstring, long_options, NULL)) != -1) {
1063 case '2': /* Perform two pass analysis */
1064 if(epan_auto_reset){
1065 cmdarg_err("-2 does not support auto session reset.");
1068 perform_two_pass_analysis = TRUE;
1071 if(perform_two_pass_analysis){
1072 cmdarg_err("-M does not support two pass analysis.");
1075 epan_auto_reset_count = get_positive_int(optarg, "epan reset count");
1076 epan_auto_reset = TRUE;
1078 case 'a': /* autostop criteria */
1079 case 'b': /* Ringbuffer option */
1080 case 'c': /* Capture x packets */
1081 case 'f': /* capture filter */
1082 case 'g': /* enable group read access on file(s) */
1083 case 'i': /* Use interface x */
1084 case LONGOPT_SET_TSTAMP_TYPE: /* Set capture timestamp type */
1085 case 'p': /* Don't capture in promiscuous mode */
1086 #ifdef HAVE_PCAP_REMOTE
1087 case 'A': /* Authentication */
1089 #ifdef HAVE_PCAP_CREATE
1090 case 'I': /* Capture in monitor mode, if available */
1092 case 's': /* Set the snapshot (capture) length */
1093 case 'w': /* Write to capture file x */
1094 case 'y': /* Set the pcap data link type */
1095 case LONGOPT_NUM_CAP_COMMENT: /* add a capture comment */
1096 #ifdef CAN_SET_CAPTURE_BUFFER_SIZE
1097 case 'B': /* Buffer size */
1100 exit_status = capture_opts_add_opt(&global_capture_opts, opt, optarg, &start_capture);
1101 if (exit_status != 0) {
1107 * Output file name, if we're reading a file and writing to another
1110 output_file_name = optarg;
1112 capture_option_specified = TRUE;
1118 /* already processed; just ignore it now */
1120 case 'D': /* Print a list of capture devices and exit */
1122 if_list = capture_interface_list(&err, &err_str,NULL);
1123 if (if_list == NULL) {
1125 cmdarg_err("There are no interfaces on which a capture can be done");
1127 cmdarg_err("%s", err_str);
1130 exit_status = INVALID_INTERFACE;
1133 capture_opts_print_interfaces(if_list);
1134 free_interface_list(if_list);
1135 exit_status = EXIT_SUCCESS;
1138 capture_option_specified = TRUE;
1144 output_fields_add(output_fields, optarg);
1148 if (!output_fields_set_option(output_fields, optarg)) {
1149 cmdarg_err("\"%s\" is not a valid field output option=value pair.", optarg);
1150 output_fields_list_options(stderr);
1151 exit_status = INVALID_OPTION;
1156 out_file_type = wtap_short_string_to_file_type_subtype(optarg);
1157 if (out_file_type < 0) {
1158 cmdarg_err("\"%s\" isn't a valid capture file type", optarg);
1159 list_capture_types();
1160 exit_status = INVALID_OPTION;
1165 protocolfilter = wmem_strsplit(wmem_epan_scope(), optarg, " ", -1);
1168 protocolfilter_flags = PF_INCLUDE_CHILDREN;
1169 protocolfilter = wmem_strsplit(wmem_epan_scope(), optarg, " ", -1);
1171 case 'W': /* Select extra information to save in our capture file */
1172 /* This is patterned after the -N flag which may not be the best idea. */
1173 if (strchr(optarg, 'n')) {
1174 out_file_name_res = TRUE;
1176 cmdarg_err("Invalid -W argument \"%s\"; it must be one of:", optarg);
1177 cmdarg_err_cont("\t'n' write network address resolution information (pcapng only)");
1178 exit_status = INVALID_OPTION;
1182 case 'H': /* Read address to name mappings from a hosts file */
1183 if (! add_hosts_file(optarg))
1185 cmdarg_err("Can't read host entries from \"%s\"", optarg);
1186 exit_status = INVALID_OPTION;
1189 out_file_name_res = TRUE;
1192 case 'h': /* Print help and exit */
1193 printf("TShark (Wireshark) %s\n"
1194 "Dump and analyze network traffic.\n"
1195 "See https://www.wireshark.org for more information.\n",
1196 get_ws_vcs_version_info());
1197 print_usage(stdout);
1198 exit_status = EXIT_SUCCESS;
1201 case 'l': /* "Line-buffer" standard output */
1202 /* The ANSI C standard does not appear to *require* that a line-buffered
1203 stream be flushed to the host environment whenever a newline is
1204 written, it just says that, on such a stream, characters "are
1205 intended to be transmitted to or from the host environment as a
1206 block when a new-line character is encountered".
1208 The Visual C++ 6.0 C implementation doesn't do what is intended;
1209 even if you set a stream to be line-buffered, it still doesn't
1210 flush the buffer at the end of every line.
1212 The whole reason for the "-l" flag in either tcpdump or TShark
1213 is to allow the output of a live capture to be piped to a program
1214 or script and to have that script see the information for the
1215 packet as soon as it's printed, rather than having to wait until
1216 a standard I/O buffer fills up.
1218 So, if the "-l" flag is specified, we flush the standard output
1219 at the end of a packet. This will do the right thing if we're
1220 printing packet summary lines, and, as we print the entire protocol
1221 tree for a single packet without waiting for anything to happen,
1222 it should be as good as line-buffered mode if we're printing
1223 protocol trees - arguably even better, as it may do fewer
1225 line_buffered = TRUE;
1227 case 'L': /* Print list of link-layer types and exit */
1229 caps_queries |= CAPS_QUERY_LINK_TYPES;
1231 capture_option_specified = TRUE;
1235 case LONGOPT_LIST_TSTAMP_TYPES: /* List possible timestamp types */
1237 caps_queries |= CAPS_QUERY_TIMESTAMP_TYPES;
1239 capture_option_specified = TRUE;
1243 case 'o': /* Override preference from command line */
1245 char *errmsg = NULL;
1247 switch (prefs_set_pref(optarg, &errmsg)) {
1252 case PREFS_SET_SYNTAX_ERR:
1253 cmdarg_err("Invalid -o flag \"%s\"%s%s", optarg,
1254 errmsg ? ": " : "", errmsg ? errmsg : "");
1256 exit_status = INVALID_OPTION;
1260 case PREFS_SET_NO_SUCH_PREF:
1261 case PREFS_SET_OBSOLETE:
1262 cmdarg_err("-o flag \"%s\" specifies unknown preference", optarg);
1263 exit_status = INVALID_OPTION;
1269 case 'q': /* Quiet */
1272 case 'Q': /* Really quiet */
1274 really_quiet = TRUE;
1276 case 'r': /* Read capture file x */
1277 cf_name = g_strdup(optarg);
1279 case 'R': /* Read file filter */
1283 /* already processed; just ignore it now */
1285 case 'S': /* Set the line Separator to be printed between packets */
1288 case 'T': /* printing Type */
1289 print_packet_info = TRUE;
1290 if (strcmp(optarg, "text") == 0) {
1291 output_action = WRITE_TEXT;
1292 print_format = PR_FMT_TEXT;
1293 } else if (strcmp(optarg, "tabs") == 0) {
1294 output_action = WRITE_TEXT;
1295 print_format = PR_FMT_TEXT;
1296 delimiter_char = "\t";
1297 } else if (strcmp(optarg, "ps") == 0) {
1298 output_action = WRITE_TEXT;
1299 print_format = PR_FMT_PS;
1300 } else if (strcmp(optarg, "pdml") == 0) {
1301 output_action = WRITE_XML;
1302 print_details = TRUE; /* Need details */
1303 print_summary = FALSE; /* Don't allow summary */
1304 } else if (strcmp(optarg, "psml") == 0) {
1305 output_action = WRITE_XML;
1306 print_details = FALSE; /* Don't allow details */
1307 print_summary = TRUE; /* Need summary */
1308 } else if (strcmp(optarg, "fields") == 0) {
1309 output_action = WRITE_FIELDS;
1310 print_details = TRUE; /* Need full tree info */
1311 print_summary = FALSE; /* Don't allow summary */
1312 } else if (strcmp(optarg, "json") == 0) {
1313 output_action = WRITE_JSON;
1314 print_details = TRUE; /* Need details */
1315 print_summary = FALSE; /* Don't allow summary */
1316 } else if (strcmp(optarg, "ek") == 0) {
1317 output_action = WRITE_EK;
1318 print_details = TRUE; /* Need details */
1319 print_summary = FALSE; /* Don't allow summary */
1320 } else if (strcmp(optarg, "jsonraw") == 0) {
1321 output_action = WRITE_JSON_RAW;
1322 print_details = TRUE; /* Need details */
1323 print_summary = FALSE; /* Don't allow summary */
1326 cmdarg_err("Invalid -T parameter \"%s\"; it must be one of:", optarg); /* x */
1327 cmdarg_err_cont("\t\"fields\" The values of fields specified with the -e option, in a form\n"
1328 "\t specified by the -E option.\n"
1329 "\t\"pdml\" Packet Details Markup Language, an XML-based format for the\n"
1330 "\t details of a decoded packet. This information is equivalent to\n"
1331 "\t the packet details printed with the -V flag.\n"
1332 "\t\"ps\" PostScript for a human-readable one-line summary of each of\n"
1333 "\t the packets, or a multi-line view of the details of each of\n"
1334 "\t the packets, depending on whether the -V flag was specified.\n"
1335 "\t\"psml\" Packet Summary Markup Language, an XML-based format for the\n"
1336 "\t summary information of a decoded packet. This information is\n"
1337 "\t equivalent to the information shown in the one-line summary\n"
1338 "\t printed by default.\n"
1339 "\t\"json\" Packet Summary, an JSON-based format for the details\n"
1340 "\t summary information of a decoded packet. This information is \n"
1341 "\t equivalent to the packet details printed with the -V flag.\n"
1342 "\t\"jsonraw\" Packet Details, a JSON-based format for machine parsing\n"
1343 "\t including only raw hex decoded fields (same as -T json -x but\n"
1344 "\t without text decoding, only raw fields included). \n"
1345 "\t\"ek\" Packet Details, an EK JSON-based format for the bulk insert \n"
1346 "\t into elastic search cluster. This information is \n"
1347 "\t equivalent to the packet details printed with the -V flag.\n"
1348 "\t\"text\" Text of a human-readable one-line summary of each of the\n"
1349 "\t packets, or a multi-line view of the details of each of the\n"
1350 "\t packets, depending on whether the -V flag was specified.\n"
1351 "\t This is the default.\n"
1352 "\t\"tabs\" Similar to the text report except that each column of the\n"
1353 "\t human-readable one-line summary is delimited with an ASCII\n"
1354 "\t horizontal tab character.");
1355 exit_status = INVALID_OPTION;
1359 case 'U': /* Export PDUs to file */
1361 GSList *export_pdu_tap_name_list = NULL;
1364 cmdarg_err("A tap name is required. Valid names are:");
1365 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)) {
1366 cmdarg_err("%s\n", (const char*)(export_pdu_tap_name_list->data));
1368 exit_status = INVALID_OPTION;
1371 pdu_export_arg = g_strdup(optarg);
1374 case 'v': /* Show version and exit */
1375 comp_info_str = get_compiled_version_info(get_tshark_compiled_version_info,
1376 epan_get_compiled_version_info);
1377 runtime_info_str = get_runtime_version_info(get_tshark_runtime_version_info);
1378 show_version("TShark (Wireshark)", comp_info_str, runtime_info_str);
1379 g_string_free(comp_info_str, TRUE);
1380 g_string_free(runtime_info_str, TRUE);
1381 /* We don't really have to cleanup here, but it's a convenient way to test
1382 * start-up and shut-down of the epan library without any UI-specific
1383 * cruft getting in the way. Makes the results of running
1384 * $ ./tools/valgrind-wireshark -n
1385 * much more useful. */
1390 exit_status = EXIT_SUCCESS;
1392 case 'O': /* Only output these protocols */
1393 /* already processed; just ignore it now */
1395 case 'V': /* Verbose */
1396 /* already processed; just ignore it now */
1398 case 'x': /* Print packet data in hex (and ASCII) */
1399 /* already processed; just ignore it now */
1402 /* already processed; just ignore it now */
1408 /* We won't call the init function for the stat this soon
1409 as it would disallow MATE's fields (which are registered
1410 by the preferences set callback) from being used as
1411 part of a tap filter. Instead, we just add the argument
1412 to a list of stat arguments. */
1413 if (strcmp("help", optarg) == 0) {
1414 fprintf(stderr, "tshark: The available statistics for the \"-z\" option are:\n");
1415 list_stat_cmd_args();
1416 exit_status = EXIT_SUCCESS;
1419 if (!process_stat_cmd_arg(optarg)) {
1420 cmdarg_err("Invalid -z argument \"%s\"; it must be one of:", optarg);
1421 list_stat_cmd_args();
1422 exit_status = INVALID_OPTION;
1426 case 'd': /* Decode as rule */
1427 case 'K': /* Kerberos keytab file */
1428 case 'n': /* No name resolution */
1429 case 'N': /* Select what types of addresses/port #s to resolve */
1430 case 't': /* Time stamp type */
1431 case 'u': /* Seconds type */
1432 case LONGOPT_DISABLE_PROTOCOL: /* disable dissection of protocol */
1433 case LONGOPT_ENABLE_HEURISTIC: /* enable heuristic dissection of protocol */
1434 case LONGOPT_DISABLE_HEURISTIC: /* disable heuristic dissection of protocol */
1435 case LONGOPT_ENABLE_PROTOCOL: /* enable dissection of protocol (that is disabled by default) */
1436 if (!dissect_opts_handle_opt(opt, optarg)) {
1437 exit_status = INVALID_OPTION;
1441 case LONGOPT_EXPORT_OBJECTS: /* --export-objects */
1442 if (strcmp("help", optarg) == 0) {
1443 fprintf(stderr, "tshark: The available export object types for the \"--export-objects\" option are:\n");
1444 eo_list_object_types();
1445 exit_status = EXIT_SUCCESS;
1448 if (!eo_tap_opt_add(optarg)) {
1449 exit_status = INVALID_OPTION;
1453 case LONGOPT_COLOR: /* print in color where appropriate */
1454 dissect_color = TRUE;
1456 case LONGOPT_NO_DUPLICATE_KEYS:
1457 no_duplicate_keys = TRUE;
1458 node_children_grouper = proto_node_group_children_by_json_key;
1461 case '?': /* Bad flag - print usage message */
1464 list_capture_types();
1467 print_usage(stderr);
1469 exit_status = INVALID_OPTION;
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.frames != NULL) {
2202 free_frame_data_sequence(cfile.frames);
2203 cfile.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(void *data, guint32 frame_num)
2347 capture_file *cf = (capture_file *) data;
2349 if (ref && ref->num == frame_num)
2350 return &ref->abs_ts;
2352 if (prev_dis && prev_dis->num == frame_num)
2353 return &prev_dis->abs_ts;
2355 if (prev_cap && prev_cap->num == frame_num)
2356 return &prev_cap->abs_ts;
2359 frame_data *fd = frame_data_sequence_find(cf->frames, frame_num);
2361 return (fd) ? &fd->abs_ts : NULL;
2368 tshark_epan_new(capture_file *cf)
2370 epan_t *epan = epan_new();
2373 epan->get_frame_ts = tshark_get_frame_ts;
2374 epan->get_interface_name = cap_file_get_interface_name;
2375 epan->get_interface_description = cap_file_get_interface_description;
2376 epan->get_user_comment = NULL;
2388 #ifdef USE_TSHARK_SELECT
2392 struct sigaction action, oldaction;
2395 /* Create new dissection section. */
2396 epan_free(cfile.epan);
2397 cfile.epan = tshark_epan_new(&cfile);
2400 /* Catch a CTRL+C event and, if we get it, clean up and exit. */
2401 SetConsoleCtrlHandler(capture_cleanup, TRUE);
2403 /* Catch SIGINT and SIGTERM and, if we get either of them,
2404 clean up and exit. If SIGHUP isn't being ignored, catch
2405 it too and, if we get it, clean up and exit.
2407 We restart any read that was in progress, so that it doesn't
2408 disrupt reading from the sync pipe. The signal handler tells
2409 the capture child to finish; it will report that it finished,
2410 or will exit abnormally, so we'll stop reading from the sync
2411 pipe, pick up the exit status, and quit. */
2412 memset(&action, 0, sizeof(action));
2413 action.sa_handler = capture_cleanup;
2414 action.sa_flags = SA_RESTART;
2415 sigemptyset(&action.sa_mask);
2416 sigaction(SIGTERM, &action, NULL);
2417 sigaction(SIGINT, &action, NULL);
2418 sigaction(SIGHUP, NULL, &oldaction);
2419 if (oldaction.sa_handler == SIG_DFL)
2420 sigaction(SIGHUP, &action, NULL);
2423 /* Catch SIGINFO and, if we get it and we're capturing to a file in
2424 quiet mode, report the number of packets we've captured.
2426 Again, restart any read that was in progress, so that it doesn't
2427 disrupt reading from the sync pipe. */
2428 action.sa_handler = report_counts_siginfo;
2429 action.sa_flags = SA_RESTART;
2430 sigemptyset(&action.sa_mask);
2431 sigaction(SIGINFO, &action, NULL);
2432 #endif /* SIGINFO */
2435 global_capture_session.state = CAPTURE_PREPARING;
2437 /* Let the user know which interfaces were chosen. */
2438 for (i = 0; i < global_capture_opts.ifaces->len; i++) {
2439 interface_options *interface_opts;
2441 interface_opts = &g_array_index(global_capture_opts.ifaces, interface_options, i);
2442 interface_opts->descr = get_interface_descriptive_name(interface_opts->name);
2444 str = get_iface_list_string(&global_capture_opts, IFLIST_QUOTE_IF_DESCRIPTION);
2445 if (really_quiet == FALSE)
2446 fprintf(stderr, "Capturing on %s\n", str->str);
2448 g_string_free(str, TRUE);
2450 ret = sync_pipe_start(&global_capture_opts, &global_capture_session, &global_info_data, NULL);
2455 /* the actual capture loop
2457 * XXX - glib doesn't seem to provide any event based loop handling.
2459 * XXX - for whatever reason,
2460 * calling g_main_loop_new() ends up in 100% cpu load.
2462 * But that doesn't matter: in UNIX we can use select() to find an input
2463 * source with something to do.
2465 * But that doesn't matter because we're in a CLI (that doesn't need to
2466 * update a GUI or something at the same time) so it's OK if we block
2467 * trying to read from the pipe.
2469 * So all the stuff in USE_TSHARK_SELECT could be removed unless I'm
2470 * wrong (but I leave it there in case I am...).
2473 #ifdef USE_TSHARK_SELECT
2475 FD_SET(pipe_input.source, &readfds);
2478 loop_running = TRUE;
2482 while (loop_running)
2484 #ifdef USE_TSHARK_SELECT
2485 ret = select(pipe_input.source+1, &readfds, NULL, NULL, NULL);
2489 fprintf(stderr, "%s: %s\n", "select()", g_strerror(errno));
2491 } else if (ret == 1) {
2493 /* Call the real handler */
2494 if (!pipe_input.input_cb(pipe_input.source, pipe_input.user_data)) {
2495 g_log(NULL, G_LOG_LEVEL_DEBUG, "input pipe closed");
2498 #ifdef USE_TSHARK_SELECT
2503 CATCH(OutOfMemoryError) {
2507 "Sorry, but TShark has to terminate now.\n"
2509 "More information and workarounds can be found at\n"
2510 "https://wiki.wireshark.org/KnownBugs/OutOfMemory\n");
2517 /* capture child detected an error */
2519 capture_input_error_message(capture_session *cap_session _U_, char *error_msg, char *secondary_error_msg)
2521 cmdarg_err("%s", error_msg);
2522 cmdarg_err_cont("%s", secondary_error_msg);
2526 /* capture child detected an capture filter related error */
2528 capture_input_cfilter_error_message(capture_session *cap_session, guint i, char *error_message)
2530 capture_options *capture_opts = cap_session->capture_opts;
2531 dfilter_t *rfcode = NULL;
2532 interface_options *interface_opts;
2534 g_assert(i < capture_opts->ifaces->len);
2535 interface_opts = &g_array_index(capture_opts->ifaces, interface_options, i);
2537 if (dfilter_compile(interface_opts->cfilter, &rfcode, NULL) && rfcode != NULL) {
2539 "Invalid capture filter \"%s\" for interface '%s'.\n"
2541 "That string looks like a valid display filter; however, it isn't a valid\n"
2542 "capture filter (%s).\n"
2544 "Note that display filters and capture filters don't have the same syntax,\n"
2545 "so you can't use most display filter expressions as capture filters.\n"
2547 "See the User's Guide for a description of the capture filter syntax.",
2548 interface_opts->cfilter, interface_opts->descr, error_message);
2549 dfilter_free(rfcode);
2552 "Invalid capture filter \"%s\" for interface '%s'.\n"
2554 "That string isn't a valid capture filter (%s).\n"
2555 "See the User's Guide for a description of the capture filter syntax.",
2556 interface_opts->cfilter, interface_opts->descr, error_message);
2561 /* capture child tells us we have a new (or the first) capture file */
2563 capture_input_new_file(capture_session *cap_session, gchar *new_file)
2565 capture_options *capture_opts = cap_session->capture_opts;
2566 capture_file *cf = (capture_file *) cap_session->cf;
2567 gboolean is_tempfile;
2570 if (cap_session->state == CAPTURE_PREPARING) {
2571 g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_MESSAGE, "Capture started.");
2573 g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_MESSAGE, "File: \"%s\"", new_file);
2575 g_assert(cap_session->state == CAPTURE_PREPARING || cap_session->state == CAPTURE_RUNNING);
2577 /* free the old filename */
2578 if (capture_opts->save_file != NULL) {
2580 /* we start a new capture file, close the old one (if we had one before) */
2581 if (cf->state != FILE_CLOSED) {
2582 if (cf->wth != NULL) {
2583 wtap_close(cf->wth);
2586 cf->state = FILE_CLOSED;
2589 g_free(capture_opts->save_file);
2590 is_tempfile = FALSE;
2592 epan_free(cf->epan);
2593 cf->epan = tshark_epan_new(cf);
2595 /* we didn't had a save_file before, must be a tempfile */
2599 /* save the new filename */
2600 capture_opts->save_file = g_strdup(new_file);
2602 /* if we are in real-time mode, open the new file now */
2603 if (do_dissection) {
2604 /* this is probably unecessary, but better safe than sorry */
2605 ((capture_file *)cap_session->cf)->open_type = WTAP_TYPE_AUTO;
2606 /* Attempt to open the capture file and set up to read from it. */
2607 switch(cf_open((capture_file *)cap_session->cf, capture_opts->save_file, WTAP_TYPE_AUTO, is_tempfile, &err)) {
2611 /* Don't unlink (delete) the save file - leave it around,
2612 for debugging purposes. */
2613 g_free(capture_opts->save_file);
2614 capture_opts->save_file = NULL;
2619 cap_session->state = CAPTURE_RUNNING;
2625 /* capture child tells us we have new packets to read */
2627 capture_input_new_packets(capture_session *cap_session, int to_read)
2633 capture_file *cf = (capture_file *)cap_session->cf;
2634 gboolean filtering_tap_listeners;
2639 * Prevent a SIGINFO handler from writing to the standard error while
2640 * we're doing so or writing to the standard output; instead, have it
2641 * just set a flag telling us to print that information when we're done.
2644 #endif /* SIGINFO */
2646 /* Do we have any tap listeners with filters? */
2647 filtering_tap_listeners = have_filtering_tap_listeners();
2649 /* Get the union of the flags for all tap listeners. */
2650 tap_flags = union_of_tap_listener_flags();
2652 if (do_dissection) {
2653 gboolean create_proto_tree;
2654 epan_dissect_t *edt;
2657 * Determine whether we need to create a protocol tree.
2660 * we're going to apply a read filter;
2662 * we're going to apply a display filter;
2664 * we're going to print the protocol tree;
2666 * one of the tap listeners is going to apply a filter;
2668 * one of the tap listeners requires a protocol tree;
2670 * a postdissector wants field values or protocols
2671 * on the first pass;
2673 * we have custom columns (which require field values, which
2674 * currently requires that we build a protocol tree).
2677 (cf->rfcode || cf->dfcode || print_details || filtering_tap_listeners ||
2678 (tap_flags & TL_REQUIRES_PROTO_TREE) || postdissectors_want_hfids() ||
2679 have_custom_cols(&cf->cinfo) || dissect_color);
2681 /* The protocol tree will be "visible", i.e., printed, only if we're
2682 printing packet details, which is true if we're printing stuff
2683 ("print_packet_info" is true) and we're in verbose mode
2684 ("packet_details" is true). */
2685 edt = epan_dissect_new(cf->epan, create_proto_tree, print_packet_info && print_details);
2687 while (to_read-- && cf->wth) {
2688 wtap_cleareof(cf->wth);
2689 ret = wtap_read(cf->wth, &err, &err_info, &data_offset);
2690 reset_epan_mem(cf, edt, create_proto_tree, print_packet_info && print_details);
2692 /* read from file failed, tell the capture child to stop */
2693 sync_pipe_stop(cap_session);
2694 wtap_close(cf->wth);
2697 ret = process_packet_single_pass(cf, edt, data_offset,
2699 wtap_buf_ptr(cf->wth), tap_flags);
2702 /* packet successfully read and gone through the "Read Filter" */
2707 epan_dissect_free(edt);
2711 * Dumpcap's doing all the work; we're not doing any dissection.
2712 * Count all the packets it wrote.
2714 packet_count += to_read;
2717 if (print_packet_counts) {
2718 /* We're printing packet counts. */
2719 if (packet_count != 0) {
2720 fprintf(stderr, "\r%u ", packet_count);
2721 /* stderr could be line buffered */
2728 * Allow SIGINFO handlers to write.
2733 * If a SIGINFO handler asked us to write out capture counts, do so.
2737 #endif /* SIGINFO */
2743 if ((print_packet_counts == FALSE) && (really_quiet == FALSE)) {
2744 /* Report the count only if we aren't printing a packet count
2745 as packets arrive. */
2746 fprintf(stderr, "%u packet%s captured\n", packet_count,
2747 plurality(packet_count, "", "s"));
2750 infoprint = FALSE; /* we just reported it */
2751 #endif /* SIGINFO */
2756 report_counts_siginfo(int signum _U_)
2758 int sav_errno = errno;
2759 /* If we've been told to delay printing, just set a flag asking
2760 that we print counts (if we're supposed to), otherwise print
2761 the count of packets captured (if we're supposed to). */
2768 #endif /* SIGINFO */
2771 /* capture child detected any packet drops? */
2773 capture_input_drops(capture_session *cap_session _U_, guint32 dropped)
2775 if (print_packet_counts) {
2776 /* We're printing packet counts to stderr.
2777 Send a newline so that we move to the line after the packet count. */
2778 fprintf(stderr, "\n");
2782 /* We're printing packet counts to stderr.
2783 Send a newline so that we move to the line after the packet count. */
2784 fprintf(stderr, "%u packet%s dropped\n", dropped, plurality(dropped, "", "s"));
2790 * Capture child closed its side of the pipe, report any error and
2791 * do the required cleanup.
2794 capture_input_closed(capture_session *cap_session, gchar *msg)
2796 capture_file *cf = (capture_file *) cap_session->cf;
2799 fprintf(stderr, "tshark: %s\n", msg);
2803 if (cf != NULL && cf->wth != NULL) {
2804 wtap_close(cf->wth);
2805 if (cf->is_tempfile) {
2806 ws_unlink(cf->filename);
2809 #ifdef USE_BROKEN_G_MAIN_LOOP
2810 /*g_main_loop_quit(loop);*/
2811 g_main_loop_quit(loop);
2813 loop_running = FALSE;
2822 capture_cleanup(DWORD ctrltype _U_)
2824 /* CTRL_C_EVENT is sort of like SIGINT, CTRL_BREAK_EVENT is unique to
2825 Windows, CTRL_CLOSE_EVENT is sort of like SIGHUP, CTRL_LOGOFF_EVENT
2826 is also sort of like SIGHUP, and CTRL_SHUTDOWN_EVENT is sort of
2827 like SIGTERM at least when the machine's shutting down.
2829 For now, we handle them all as indications that we should clean up
2830 and quit, just as we handle SIGINT, SIGHUP, and SIGTERM in that
2833 We must return TRUE so that no other handler - such as one that would
2834 terminate the process - gets called.
2836 XXX - for some reason, typing ^C to TShark, if you run this in
2837 a Cygwin console window in at least some versions of Cygwin,
2838 causes TShark to terminate immediately; this routine gets
2839 called, but the main loop doesn't get a chance to run and
2840 exit cleanly, at least if this is compiled with Microsoft Visual
2841 C++ (i.e., it's a property of the Cygwin console window or Bash;
2842 it happens if TShark is not built with Cygwin - for all I know,
2843 building it with Cygwin may make the problem go away). */
2845 /* tell the capture child to stop */
2846 sync_pipe_stop(&global_capture_session);
2848 /* don't stop our own loop already here, otherwise status messages and
2849 * cleanup wouldn't be done properly. The child will indicate the stop of
2850 * everything by calling capture_input_closed() later */
2856 capture_cleanup(int signum _U_)
2858 /* tell the capture child to stop */
2859 sync_pipe_stop(&global_capture_session);
2861 /* don't stop our own loop already here, otherwise status messages and
2862 * cleanup wouldn't be done properly. The child will indicate the stop of
2863 * everything by calling capture_input_closed() later */
2866 #endif /* HAVE_LIBPCAP */
2869 process_packet_first_pass(capture_file *cf, epan_dissect_t *edt,
2870 gint64 offset, struct wtap_pkthdr *whdr,
2877 /* The frame number of this packet is one more than the count of
2878 frames in this packet. */
2879 framenum = cf->count + 1;
2881 /* If we're not running a display filter and we're not printing any
2882 packet information, we don't need to do a dissection. This means
2883 that all packets can be marked as 'passed'. */
2886 frame_data_init(&fdlocal, framenum, whdr, offset, cum_bytes);
2888 /* If we're going to run a read filter or a display filter, set up to
2889 do a dissection and do so. (This is the first pass of two passes
2890 over the packets, so we will not be printing any information
2891 from the dissection or running taps on the packet; if we're doing
2892 any of that, we'll do it in the second pass.) */
2894 if (gbl_resolv_flags.mac_name || gbl_resolv_flags.network_name ||
2895 gbl_resolv_flags.transport_name)
2896 /* Grab any resolved addresses */
2897 host_name_lookup_process();
2899 /* If we're running a read filter, prime the epan_dissect_t with that
2902 epan_dissect_prime_with_dfilter(edt, cf->rfcode);
2905 epan_dissect_prime_with_dfilter(edt, cf->dfcode);
2907 /* This is the first pass, so prime the epan_dissect_t with the
2908 hfids postdissectors want on the first pass. */
2909 prime_epan_dissect_with_postdissector_wanted_hfids(edt);
2911 frame_data_set_before_dissect(&fdlocal, &cf->elapsed_time,
2913 if (ref == &fdlocal) {
2914 ref_frame = fdlocal;
2918 epan_dissect_run(edt, cf->cd_t, whdr, frame_tvbuff_new(&fdlocal, pd), &fdlocal, NULL);
2920 /* Run the read filter if we have one. */
2922 passed = dfilter_apply_edt(cf->rfcode, edt);
2926 frame_data_set_after_dissect(&fdlocal, &cum_bytes);
2927 prev_cap = prev_dis = frame_data_sequence_add(cf->frames, &fdlocal);
2929 /* If we're not doing dissection then there won't be any dependent frames.
2930 * More importantly, edt.pi.dependent_frames won't be initialized because
2931 * epan hasn't been initialized.
2932 * if we *are* doing dissection, then mark the dependent frames, but only
2933 * if a display filter was given and it matches this packet.
2935 if (edt && cf->dfcode) {
2936 if (dfilter_apply_edt(cf->dfcode, edt)) {
2937 g_slist_foreach(edt->pi.dependent_frames, find_and_mark_frame_depended_upon, cf->frames);
2943 /* if we don't add it to the frame_data_sequence, clean it up right now
2945 frame_data_destroy(&fdlocal);
2949 epan_dissect_reset(edt);
2955 process_packet_second_pass(capture_file *cf, epan_dissect_t *edt,
2956 frame_data *fdata, struct wtap_pkthdr *phdr,
2957 Buffer *buf, guint tap_flags)
2962 /* If we're not running a display filter and we're not printing any
2963 packet information, we don't need to do a dissection. This means
2964 that all packets can be marked as 'passed'. */
2967 /* If we're going to print packet information, or we're going to
2968 run a read filter, or we're going to process taps, set up to
2969 do a dissection and do so. (This is the second pass of two
2970 passes over the packets; that's the pass where we print
2971 packet information or run taps.) */
2973 if (gbl_resolv_flags.mac_name || gbl_resolv_flags.network_name ||
2974 gbl_resolv_flags.transport_name)
2975 /* Grab any resolved addresses */
2976 host_name_lookup_process();
2978 /* If we're running a display filter, prime the epan_dissect_t with that
2981 epan_dissect_prime_with_dfilter(edt, cf->dfcode);
2983 col_custom_prime_edt(edt, &cf->cinfo);
2985 /* We only need the columns if either
2986 1) some tap needs the columns
2988 2) we're printing packet info but we're *not* verbose; in verbose
2989 mode, we print the protocol tree, not the protocol summary.
2991 if ((tap_flags & TL_REQUIRES_COLUMNS) || (print_packet_info && print_summary) || output_fields_has_cols(output_fields))
2996 frame_data_set_before_dissect(fdata, &cf->elapsed_time,
3003 if (dissect_color) {
3004 color_filters_prime_edt(edt);
3005 fdata->flags.need_colorize = 1;
3008 epan_dissect_run_with_taps(edt, cf->cd_t, phdr, frame_tvbuff_new_buffer(fdata, buf), fdata, cinfo);
3010 /* Run the read/display filter if we have one. */
3012 passed = dfilter_apply_edt(cf->dfcode, edt);
3016 frame_data_set_after_dissect(fdata, &cum_bytes);
3017 /* Process this packet. */
3018 if (print_packet_info) {
3019 /* We're printing packet information; print the information for
3021 print_packet(cf, edt);
3023 /* If we're doing "line-buffering", flush the standard output
3024 after every packet. See the comment above, for the "-l"
3025 option, for an explanation of why we do that. */
3029 if (ferror(stdout)) {
3030 show_print_file_io_error(errno);
3039 epan_dissect_reset(edt);
3041 return passed || fdata->flags.dependent_of_displayed;
3045 process_cap_file(capture_file *cf, char *save_file, int out_file_type,
3046 gboolean out_file_name_res, int max_packet_count, gint64 max_byte_count)
3048 gboolean success = TRUE;
3050 int snapshot_length;
3053 int err = 0, err_pass1 = 0;
3054 gchar *err_info = NULL, *err_info_pass1 = NULL;
3056 gboolean filtering_tap_listeners;
3058 GArray *shb_hdrs = NULL;
3059 wtapng_iface_descriptions_t *idb_inf = NULL;
3060 GArray *nrb_hdrs = NULL;
3061 struct wtap_pkthdr phdr;
3063 epan_dissect_t *edt = NULL;
3064 char *shb_user_appl;
3066 wtap_phdr_init(&phdr);
3068 idb_inf = wtap_file_get_idb_info(cf->wth);
3069 #ifdef PCAP_NG_DEFAULT
3070 if (idb_inf->interface_data->len > 1) {
3071 linktype = WTAP_ENCAP_PER_PACKET;
3073 linktype = wtap_file_encap(cf->wth);
3076 linktype = wtap_file_encap(cf->wth);
3078 if (save_file != NULL) {
3079 /* Set up to write to the capture file. */
3080 snapshot_length = wtap_snapshot_length(cf->wth);
3081 if (snapshot_length == 0) {
3082 /* Snapshot length of input file not known. */
3083 snapshot_length = WTAP_MAX_PACKET_SIZE_STANDARD;
3085 tshark_debug("tshark: snapshot_length = %d", snapshot_length);
3087 shb_hdrs = wtap_file_get_shb_for_new_file(cf->wth);
3088 nrb_hdrs = wtap_file_get_nrb_for_new_file(cf->wth);
3090 /* If we don't have an application name add Tshark */
3091 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) {
3092 /* this is free'd by wtap_block_free() later */
3093 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());
3096 if (linktype != WTAP_ENCAP_PER_PACKET &&
3097 out_file_type == WTAP_FILE_TYPE_SUBTYPE_PCAP) {
3098 tshark_debug("tshark: writing PCAP format to %s", save_file);
3099 if (strcmp(save_file, "-") == 0) {
3100 /* Write to the standard output. */
3101 pdh = wtap_dump_open_stdout(out_file_type, linktype,
3102 snapshot_length, FALSE /* compressed */, &err);
3104 pdh = wtap_dump_open(save_file, out_file_type, linktype,
3105 snapshot_length, FALSE /* compressed */, &err);
3109 tshark_debug("tshark: writing format type %d, to %s", out_file_type, save_file);
3110 if (strcmp(save_file, "-") == 0) {
3111 /* Write to the standard output. */
3112 pdh = wtap_dump_open_stdout_ng(out_file_type, linktype,
3113 snapshot_length, FALSE /* compressed */, shb_hdrs, idb_inf, nrb_hdrs, &err);
3115 pdh = wtap_dump_open_ng(save_file, out_file_type, linktype,
3116 snapshot_length, FALSE /* compressed */, shb_hdrs, idb_inf, nrb_hdrs, &err);
3124 /* We couldn't set up to write to the capture file. */
3125 cfile_dump_open_failure_message("TShark", save_file, err, out_file_type);
3130 /* Set up to print packet information. */
3131 if (print_packet_info) {
3132 if (!write_preamble(cf)) {
3133 show_print_file_io_error(errno);
3143 /* Do we have any tap listeners with filters? */
3144 filtering_tap_listeners = have_filtering_tap_listeners();
3146 /* Get the union of the flags for all tap listeners. */
3147 tap_flags = union_of_tap_listener_flags();
3149 if (perform_two_pass_analysis) {
3152 tshark_debug("tshark: perform_two_pass_analysis, do_dissection=%s", do_dissection ? "TRUE" : "FALSE");
3154 /* Allocate a frame_data_sequence for all the frames. */
3155 cf->frames = new_frame_data_sequence();
3157 if (do_dissection) {
3158 gboolean create_proto_tree;
3161 * Determine whether we need to create a protocol tree.
3164 * we're going to apply a read filter;
3166 * we're going to apply a display filter;
3168 * a postdissector wants field values or protocols
3169 * on the first pass.
3172 (cf->rfcode != NULL || cf->dfcode != NULL || postdissectors_want_hfids() || dissect_color);
3174 tshark_debug("tshark: create_proto_tree = %s", create_proto_tree ? "TRUE" : "FALSE");
3176 /* We're not going to display the protocol tree on this pass,
3177 so it's not going to be "visible". */
3178 edt = epan_dissect_new(cf->epan, create_proto_tree, FALSE);
3181 tshark_debug("tshark: reading records for first pass");
3182 while (wtap_read(cf->wth, &err, &err_info, &data_offset)) {
3183 if (process_packet_first_pass(cf, edt, data_offset, wtap_phdr(cf->wth),
3184 wtap_buf_ptr(cf->wth))) {
3185 /* Stop reading if we have the maximum number of packets;
3186 * When the -c option has not been used, max_packet_count
3187 * starts at 0, which practically means, never stop reading.
3188 * (unless we roll over max_packet_count ?)
3190 if ( (--max_packet_count == 0) || (max_byte_count != 0 && data_offset >= max_byte_count)) {
3191 tshark_debug("tshark: max_packet_count (%d) or max_byte_count (%" G_GINT64_MODIFIER "d/%" G_GINT64_MODIFIER "d) reached",
3192 max_packet_count, data_offset, max_byte_count);
3193 err = 0; /* This is not an error */
3200 * If we got a read error on the first pass, remember the error, so
3201 * but do the second pass, so we can at least process the packets we
3202 * read, and then report the first-pass error after the second pass
3203 * (and before we report any second-pass errors), so all the the
3204 * errors show up at the end.
3208 err_info_pass1 = err_info;
3214 epan_dissect_free(edt);
3218 /* Close the sequential I/O side, to free up memory it requires. */
3219 wtap_sequential_close(cf->wth);
3221 /* Allow the protocol dissectors to free up memory that they
3222 * don't need after the sequential run-through of the packets. */
3223 postseq_cleanup_all_protocols();
3227 ws_buffer_init(&buf, 1500);
3229 tshark_debug("tshark: done with first pass");
3231 if (do_dissection) {
3232 gboolean create_proto_tree;
3235 * Determine whether we need to create a protocol tree.
3238 * we're going to apply a display filter;
3240 * we're going to print the protocol tree;
3242 * one of the tap listeners requires a protocol tree;
3244 * we have custom columns (which require field values, which
3245 * currently requires that we build a protocol tree).
3248 (cf->dfcode || print_details || filtering_tap_listeners ||
3249 (tap_flags & TL_REQUIRES_PROTO_TREE) || have_custom_cols(&cf->cinfo) || dissect_color);
3251 tshark_debug("tshark: create_proto_tree = %s", create_proto_tree ? "TRUE" : "FALSE");
3253 /* The protocol tree will be "visible", i.e., printed, only if we're
3254 printing packet details, which is true if we're printing stuff
3255 ("print_packet_info" is true) and we're in verbose mode
3256 ("packet_details" is true). */
3257 edt = epan_dissect_new(cf->epan, create_proto_tree, print_packet_info && print_details);
3260 for (framenum = 1; err == 0 && framenum <= cf->count; framenum++) {
3261 fdata = frame_data_sequence_find(cf->frames, framenum);
3262 if (wtap_seek_read(cf->wth, fdata->file_off, &phdr, &buf, &err,
3264 tshark_debug("tshark: invoking process_packet_second_pass() for frame #%d", framenum);
3265 if (process_packet_second_pass(cf, edt, fdata, &phdr, &buf,
3267 /* Either there's no read filtering or this packet passed the
3268 filter, so, if we're writing to a capture file, write
3271 tshark_debug("tshark: writing packet #%d to outfile", framenum);
3272 if (!wtap_dump(pdh, &phdr, ws_buffer_start_ptr(&buf), &err, &err_info)) {
3273 /* Error writing to a capture file */
3274 tshark_debug("tshark: error writing to a capture file (%d)", err);
3276 /* Report the error.
3277 XXX - framenum is not necessarily the frame number in
3278 the input file if there was a read filter. */
3279 cfile_write_failure_message("TShark", cf->filename, save_file,
3280 err, err_info, framenum,
3282 wtap_dump_close(pdh, &err);
3283 wtap_block_array_free(shb_hdrs);
3284 wtap_block_array_free(nrb_hdrs);
3293 epan_dissect_free(edt);
3297 ws_buffer_free(&buf);
3299 tshark_debug("tshark: done with second pass");
3302 /* !perform_two_pass_analysis */
3304 gboolean create_proto_tree = FALSE;
3305 tshark_debug("tshark: perform one pass analysis, do_dissection=%s", do_dissection ? "TRUE" : "FALSE");
3307 if (do_dissection) {
3309 * Determine whether we need to create a protocol tree.
3312 * we're going to apply a read filter;
3314 * we're going to apply a display filter;
3316 * we're going to print the protocol tree;
3318 * one of the tap listeners is going to apply a filter;
3320 * one of the tap listeners requires a protocol tree;
3322 * a postdissector wants field values or protocols
3323 * on the first pass;
3325 * we have custom columns (which require field values, which
3326 * currently requires that we build a protocol tree).
3329 (cf->rfcode || cf->dfcode || print_details || filtering_tap_listeners ||
3330 (tap_flags & TL_REQUIRES_PROTO_TREE) || postdissectors_want_hfids() ||
3331 have_custom_cols(&cf->cinfo) || dissect_color);
3333 tshark_debug("tshark: create_proto_tree = %s", create_proto_tree ? "TRUE" : "FALSE");
3335 /* The protocol tree will be "visible", i.e., printed, only if we're
3336 printing packet details, which is true if we're printing stuff
3337 ("print_packet_info" is true) and we're in verbose mode
3338 ("packet_details" is true). */
3339 edt = epan_dissect_new(cf->epan, create_proto_tree, print_packet_info && print_details);
3342 while (wtap_read(cf->wth, &err, &err_info, &data_offset)) {
3345 tshark_debug("tshark: processing packet #%d", framenum);
3347 reset_epan_mem(cf, edt, create_proto_tree, print_packet_info && print_details);
3349 if (process_packet_single_pass(cf, edt, data_offset, wtap_phdr(cf->wth),
3350 wtap_buf_ptr(cf->wth), tap_flags)) {
3351 /* Either there's no read filtering or this packet passed the
3352 filter, so, if we're writing to a capture file, write
3355 tshark_debug("tshark: writing packet #%d to outfile", framenum);
3356 if (!wtap_dump(pdh, wtap_phdr(cf->wth), wtap_buf_ptr(cf->wth), &err, &err_info)) {
3357 /* Error writing to a capture file */
3358 tshark_debug("tshark: error writing to a capture file (%d)", err);
3359 cfile_write_failure_message("TShark", cf->filename, save_file,
3360 err, err_info, framenum, out_file_type);
3361 wtap_dump_close(pdh, &err);
3362 wtap_block_array_free(shb_hdrs);
3363 wtap_block_array_free(nrb_hdrs);
3368 /* Stop reading if we have the maximum number of packets;
3369 * When the -c option has not been used, max_packet_count
3370 * starts at 0, which practically means, never stop reading.
3371 * (unless we roll over max_packet_count ?)
3373 if ( (--max_packet_count == 0) || (max_byte_count != 0 && data_offset >= max_byte_count)) {
3374 tshark_debug("tshark: max_packet_count (%d) or max_byte_count (%" G_GINT64_MODIFIER "d/%" G_GINT64_MODIFIER "d) reached",
3375 max_packet_count, data_offset, max_byte_count);
3376 err = 0; /* This is not an error */
3382 epan_dissect_free(edt);
3387 wtap_phdr_cleanup(&phdr);
3389 if (err != 0 || err_pass1 != 0) {
3390 tshark_debug("tshark: something failed along the line (%d)", err);
3392 * Print a message noting that the read failed somewhere along the line.
3394 * If we're printing packet data, and the standard output and error are
3395 * going to the same place, flush the standard output, so everything
3396 * buffered up is written, and then print a newline to the standard error
3397 * before printing the error message, to separate it from the packet
3398 * data. (Alas, that only works on UN*X; st_dev is meaningless, and
3399 * the _fstat() documentation at Microsoft doesn't indicate whether
3400 * st_ino is even supported.)
3403 if (print_packet_info) {
3404 ws_statb64 stat_stdout, stat_stderr;
3406 if (ws_fstat64(1, &stat_stdout) == 0 && ws_fstat64(2, &stat_stderr) == 0) {
3407 if (stat_stdout.st_dev == stat_stderr.st_dev &&
3408 stat_stdout.st_ino == stat_stderr.st_ino) {
3410 fprintf(stderr, "\n");
3415 if (err_pass1 != 0) {
3416 /* Error on pass 1 of two-pass processing. */
3417 cfile_read_failure_message("TShark", cf->filename, err_pass1,
3421 /* Error on pass 2 of two-pass processing or on the only pass of
3422 one-pass processing. */
3423 cfile_read_failure_message("TShark", cf->filename, err, err_info);
3427 if (save_file != NULL) {
3428 if (pdh && out_file_name_res) {
3429 if (!wtap_dump_set_addrinfo_list(pdh, get_addrinfo_list())) {
3430 cmdarg_err("The file format \"%s\" doesn't support name resolution information.",
3431 wtap_file_type_subtype_short_string(out_file_type));
3434 /* Now close the capture file. */
3435 if (!wtap_dump_close(pdh, &err)) {
3436 cfile_close_failure_message(save_file, err);
3440 if (print_packet_info) {
3441 if (!write_finale()) {
3442 show_print_file_io_error(errno);
3449 wtap_close(cf->wth);
3452 wtap_block_array_free(shb_hdrs);
3453 wtap_block_array_free(nrb_hdrs);
3459 process_packet_single_pass(capture_file *cf, epan_dissect_t *edt, gint64 offset,
3460 struct wtap_pkthdr *whdr, const guchar *pd,
3467 /* Count this packet. */
3470 /* If we're not running a display filter and we're not printing any
3471 packet information, we don't need to do a dissection. This means
3472 that all packets can be marked as 'passed'. */
3475 frame_data_init(&fdata, cf->count, whdr, offset, cum_bytes);
3477 /* If we're going to print packet information, or we're going to
3478 run a read filter, or we're going to process taps, set up to
3479 do a dissection and do so. (This is the one and only pass
3480 over the packets, so, if we'll be printing packet information
3481 or running taps, we'll be doing it here.) */
3483 if (print_packet_info && (gbl_resolv_flags.mac_name || gbl_resolv_flags.network_name ||
3484 gbl_resolv_flags.transport_name))
3485 /* Grab any resolved addresses */
3486 host_name_lookup_process();
3488 /* If we're running a filter, prime the epan_dissect_t with that
3491 epan_dissect_prime_with_dfilter(edt, cf->dfcode);
3493 /* This is the first and only pass, so prime the epan_dissect_t
3494 with the hfids postdissectors want on the first pass. */
3495 prime_epan_dissect_with_postdissector_wanted_hfids(edt);
3497 col_custom_prime_edt(edt, &cf->cinfo);
3499 /* We only need the columns if either
3500 1) some tap needs the columns
3502 2) we're printing packet info but we're *not* verbose; in verbose
3503 mode, we print the protocol tree, not the protocol summary.
3505 3) there is a column mapped as an individual field */
3506 if ((tap_flags & TL_REQUIRES_COLUMNS) || (print_packet_info && print_summary) || output_fields_has_cols(output_fields))
3511 frame_data_set_before_dissect(&fdata, &cf->elapsed_time,
3513 if (ref == &fdata) {
3518 if (dissect_color) {
3519 color_filters_prime_edt(edt);
3520 fdata.flags.need_colorize = 1;
3523 epan_dissect_run_with_taps(edt, cf->cd_t, whdr, frame_tvbuff_new(&fdata, pd), &fdata, cinfo);
3525 /* Run the filter if we have it. */
3527 passed = dfilter_apply_edt(cf->dfcode, edt);
3531 frame_data_set_after_dissect(&fdata, &cum_bytes);
3533 /* Process this packet. */
3534 if (print_packet_info) {
3535 /* We're printing packet information; print the information for
3538 print_packet(cf, edt);
3540 /* If we're doing "line-buffering", flush the standard output
3541 after every packet. See the comment above, for the "-l"
3542 option, for an explanation of why we do that. */
3546 if (ferror(stdout)) {
3547 show_print_file_io_error(errno);
3552 /* this must be set after print_packet() [bug #8160] */
3553 prev_dis_frame = fdata;
3554 prev_dis = &prev_dis_frame;
3557 prev_cap_frame = fdata;
3558 prev_cap = &prev_cap_frame;
3561 epan_dissect_reset(edt);
3562 frame_data_destroy(&fdata);
3568 write_preamble(capture_file *cf)
3570 switch (output_action) {
3573 return print_preamble(print_stream, cf->filename, get_ws_vcs_version_info());
3577 write_pdml_preamble(stdout, cf->filename);
3579 write_psml_preamble(&cf->cinfo, stdout);
3580 return !ferror(stdout);
3583 write_fields_preamble(output_fields, stdout);
3584 return !ferror(stdout);
3587 case WRITE_JSON_RAW:
3588 write_json_preamble(stdout);
3589 return !ferror(stdout);
3592 return !ferror(stdout);
3595 g_assert_not_reached();
3601 get_line_buf(size_t len)
3603 static char *line_bufp = NULL;
3604 static size_t line_buf_len = 256;
3605 size_t new_line_buf_len;
3607 for (new_line_buf_len = line_buf_len; len > new_line_buf_len;
3608 new_line_buf_len *= 2)
3610 if (line_bufp == NULL) {
3611 line_buf_len = new_line_buf_len;
3612 line_bufp = (char *)g_malloc(line_buf_len + 1);
3614 if (new_line_buf_len > line_buf_len) {
3615 line_buf_len = new_line_buf_len;
3616 line_bufp = (char *)g_realloc(line_bufp, line_buf_len + 1);
3623 put_string(char *dest, const char *str, size_t str_len)
3625 memcpy(dest, str, str_len);
3626 dest[str_len] = '\0';
3630 put_spaces_string(char *dest, const char *str, size_t str_len, size_t str_with_spaces)
3634 for (i = str_len; i < str_with_spaces; i++)
3637 put_string(dest, str, str_len);
3641 put_string_spaces(char *dest, const char *str, size_t str_len, size_t str_with_spaces)
3645 memcpy(dest, str, str_len);
3646 for (i = str_len; i < str_with_spaces; i++)
3649 dest[str_with_spaces] = '\0';
3653 print_columns(capture_file *cf, const epan_dissect_t *edt)
3660 col_item_t* col_item;
3661 gchar str_format[11];
3662 const color_filter_t *color_filter = NULL;
3664 line_bufp = get_line_buf(256);
3669 color_filter = edt->pi.fd->color_filter;
3671 for (i = 0; i < cf->cinfo.num_cols; i++) {
3672 col_item = &cf->cinfo.columns[i];
3673 /* Skip columns not marked as visible. */
3674 if (!get_column_visible(i))
3676 switch (col_item->col_fmt) {
3678 column_len = col_len = strlen(col_item->col_data);
3681 line_bufp = get_line_buf(buf_offset + column_len);
3682 put_spaces_string(line_bufp + buf_offset, col_item->col_data, col_len, column_len);
3688 case COL_ABS_YMD_TIME: /* XXX - wider */
3689 case COL_ABS_YDOY_TIME: /* XXX - wider */
3691 case COL_UTC_YMD_TIME: /* XXX - wider */
3692 case COL_UTC_YDOY_TIME: /* XXX - wider */
3693 column_len = col_len = strlen(col_item->col_data);
3694 if (column_len < 10)
3696 line_bufp = get_line_buf(buf_offset + column_len);
3697 put_spaces_string(line_bufp + buf_offset, col_item->col_data, col_len, column_len);
3703 case COL_DEF_DL_SRC:
3704 case COL_RES_DL_SRC:
3705 case COL_UNRES_DL_SRC:
3706 case COL_DEF_NET_SRC:
3707 case COL_RES_NET_SRC:
3708 case COL_UNRES_NET_SRC:
3709 column_len = col_len = strlen(col_item->col_data);
3710 if (column_len < 12)
3712 line_bufp = get_line_buf(buf_offset + column_len);
3713 put_spaces_string(line_bufp + buf_offset, col_item->col_data, col_len, column_len);
3719 case COL_DEF_DL_DST:
3720 case COL_RES_DL_DST:
3721 case COL_UNRES_DL_DST:
3722 case COL_DEF_NET_DST:
3723 case COL_RES_NET_DST:
3724 case COL_UNRES_NET_DST:
3725 column_len = col_len = strlen(col_item->col_data);
3726 if (column_len < 12)
3728 line_bufp = get_line_buf(buf_offset + column_len);
3729 put_string_spaces(line_bufp + buf_offset, col_item->col_data, col_len, column_len);
3733 column_len = strlen(col_item->col_data);
3734 line_bufp = get_line_buf(buf_offset + column_len);
3735 put_string(line_bufp + buf_offset, col_item->col_data, column_len);
3738 buf_offset += column_len;
3739 if (i != cf->cinfo.num_cols - 1) {
3741 * This isn't the last column, so we need to print a
3742 * separator between this column and the next.
3744 * If we printed a network source and are printing a
3745 * network destination of the same type next, separate
3746 * them with a UTF-8 right arrow; if we printed a network
3747 * destination and are printing a network source of the same
3748 * type next, separate them with a UTF-8 left arrow;
3749 * otherwise separate them with a space.
3751 * We add enough space to the buffer for " \xe2\x86\x90 "
3752 * or " \xe2\x86\x92 ", even if we're only adding " ".
3754 line_bufp = get_line_buf(buf_offset + 5);
3755 switch (col_item->col_fmt) {
3760 switch (cf->cinfo.columns[i+1].col_fmt) {
3765 g_snprintf(str_format, sizeof(str_format), "%s%s%s", delimiter_char, UTF8_RIGHTWARDS_ARROW, delimiter_char);
3766 put_string(line_bufp + buf_offset, str_format, 5);
3771 put_string(line_bufp + buf_offset, delimiter_char, 1);
3777 case COL_DEF_DL_SRC:
3778 case COL_RES_DL_SRC:
3779 case COL_UNRES_DL_SRC:
3780 switch (cf->cinfo.columns[i+1].col_fmt) {
3782 case COL_DEF_DL_DST:
3783 case COL_RES_DL_DST:
3784 case COL_UNRES_DL_DST:
3785 g_snprintf(str_format, sizeof(str_format), "%s%s%s", delimiter_char, UTF8_RIGHTWARDS_ARROW, delimiter_char);
3786 put_string(line_bufp + buf_offset, str_format, 5);
3791 put_string(line_bufp + buf_offset, delimiter_char, 1);
3797 case COL_DEF_NET_SRC:
3798 case COL_RES_NET_SRC:
3799 case COL_UNRES_NET_SRC:
3800 switch (cf->cinfo.columns[i+1].col_fmt) {
3802 case COL_DEF_NET_DST:
3803 case COL_RES_NET_DST:
3804 case COL_UNRES_NET_DST:
3805 g_snprintf(str_format, sizeof(str_format), "%s%s%s", delimiter_char, UTF8_RIGHTWARDS_ARROW, delimiter_char);
3806 put_string(line_bufp + buf_offset, str_format, 5);
3811 put_string(line_bufp + buf_offset, delimiter_char, 1);
3820 switch (cf->cinfo.columns[i+1].col_fmt) {
3825 g_snprintf(str_format, sizeof(str_format), "%s%s%s", delimiter_char, UTF8_LEFTWARDS_ARROW, delimiter_char);
3826 put_string(line_bufp + buf_offset, str_format, 5);
3831 put_string(line_bufp + buf_offset, delimiter_char, 1);
3837 case COL_DEF_DL_DST:
3838 case COL_RES_DL_DST:
3839 case COL_UNRES_DL_DST:
3840 switch (cf->cinfo.columns[i+1].col_fmt) {
3842 case COL_DEF_DL_SRC:
3843 case COL_RES_DL_SRC:
3844 case COL_UNRES_DL_SRC:
3845 g_snprintf(str_format, sizeof(str_format), "%s%s%s", delimiter_char, UTF8_LEFTWARDS_ARROW, delimiter_char);
3846 put_string(line_bufp + buf_offset, str_format, 5);
3851 put_string(line_bufp + buf_offset, delimiter_char, 1);
3857 case COL_DEF_NET_DST:
3858 case COL_RES_NET_DST:
3859 case COL_UNRES_NET_DST:
3860 switch (cf->cinfo.columns[i+1].col_fmt) {
3862 case COL_DEF_NET_SRC:
3863 case COL_RES_NET_SRC:
3864 case COL_UNRES_NET_SRC:
3865 g_snprintf(str_format, sizeof(str_format), "%s%s%s", delimiter_char, UTF8_LEFTWARDS_ARROW, delimiter_char);
3866 put_string(line_bufp + buf_offset, str_format, 5);
3871 put_string(line_bufp + buf_offset, delimiter_char, 1);
3878 put_string(line_bufp + buf_offset, delimiter_char, 1);
3885 if (dissect_color && color_filter != NULL)
3886 return print_line_color(print_stream, 0, line_bufp, &color_filter->fg_color, &color_filter->bg_color);
3888 return print_line(print_stream, 0, line_bufp);
3892 print_packet(capture_file *cf, epan_dissect_t *edt)
3894 if (print_summary || output_fields_has_cols(output_fields)) {
3895 /* Just fill in the columns. */
3896 epan_dissect_fill_in_columns(edt, FALSE, TRUE);
3898 if (print_summary) {
3899 /* Now print them. */
3900 switch (output_action) {
3903 if (!print_columns(cf, edt))
3908 write_psml_columns(edt, stdout, dissect_color);
3909 return !ferror(stdout);
3910 case WRITE_FIELDS: /*No non-verbose "fields" format */
3913 case WRITE_JSON_RAW:
3914 g_assert_not_reached();
3919 if (print_details) {
3920 /* Print the information in the protocol tree. */
3921 switch (output_action) {
3924 if (!proto_tree_print(print_details ? print_dissections_expanded : print_dissections_none,
3925 print_hex, edt, output_only_tables, print_stream))
3928 if (!print_line(print_stream, 0, separator))
3934 write_pdml_proto_tree(output_fields, protocolfilter, protocolfilter_flags, edt, stdout, dissect_color);
3936 return !ferror(stdout);
3938 write_fields_proto_tree(output_fields, edt, &cf->cinfo, stdout);
3940 return !ferror(stdout);
3942 write_json_proto_tree(output_fields, print_dissections_expanded,
3943 print_hex, protocolfilter, protocolfilter_flags,
3944 edt, node_children_grouper, stdout);
3945 return !ferror(stdout);
3946 case WRITE_JSON_RAW:
3947 write_json_proto_tree(output_fields, print_dissections_none, TRUE,
3948 protocolfilter, protocolfilter_flags,
3949 edt, node_children_grouper, stdout);
3950 return !ferror(stdout);
3952 write_ek_proto_tree(output_fields, print_hex, protocolfilter,
3953 protocolfilter_flags, edt, stdout);
3954 return !ferror(stdout);
3958 if (print_summary || print_details) {
3959 if (!print_line(print_stream, 0, ""))
3962 if (!print_hex_data(print_stream, edt))
3964 if (!print_line(print_stream, 0, separator))
3973 switch (output_action) {
3976 return print_finale(print_stream);
3980 write_pdml_finale(stdout);
3982 write_psml_finale(stdout);
3983 return !ferror(stdout);
3986 write_fields_finale(output_fields, stdout);
3987 return !ferror(stdout);
3990 case WRITE_JSON_RAW:
3991 write_json_finale(stdout);
3992 return !ferror(stdout);
3995 return !ferror(stdout);
3998 g_assert_not_reached();
4004 cf_close(capture_file *cf)
4006 g_free(cf->filename);
4010 cf_open(capture_file *cf, const char *fname, unsigned int type, gboolean is_tempfile, int *err)
4015 wth = wtap_open_offline(fname, type, err, &err_info, perform_two_pass_analysis);
4019 /* The open succeeded. Fill in the information for this file. */
4021 /* Create new epan session for dissection. */
4022 epan_free(cf->epan);
4023 cf->epan = tshark_epan_new(cf);
4026 cf->f_datalen = 0; /* not used, but set it anyway */
4028 /* Set the file name because we need it to set the follow stream filter.
4029 XXX - is that still true? We need it for other reasons, though,
4031 cf->filename = g_strdup(fname);
4033 /* Indicate whether it's a permanent or temporary file. */
4034 cf->is_tempfile = is_tempfile;
4036 /* No user changes yet. */
4037 cf->unsaved_changes = FALSE;
4039 cf->cd_t = wtap_file_type_subtype(cf->wth);
4040 cf->open_type = type;
4042 cf->drops_known = FALSE;
4044 cf->snap = wtap_snapshot_length(cf->wth);
4045 nstime_set_zero(&cf->elapsed_time);
4050 cf->state = FILE_READ_IN_PROGRESS;
4052 wtap_set_cb_new_ipv4(cf->wth, add_ipv4_name);
4053 wtap_set_cb_new_ipv6(cf->wth, (wtap_new_ipv6_callback_t) add_ipv6_name);
4058 cfile_open_failure_message("TShark", fname, *err, err_info);
4063 show_print_file_io_error(int err)
4068 cmdarg_err("Not all the packets could be printed because there is "
4069 "no space left on the file system.");
4074 cmdarg_err("Not all the packets could be printed because you are "
4075 "too close to, or over your disk quota.");
4080 cmdarg_err("An error occurred while printing packets: %s.",
4087 * General errors and warnings are reported with an console message
4091 failure_warning_message(const char *msg_format, va_list ap)
4093 fprintf(stderr, "tshark: ");
4094 vfprintf(stderr, msg_format, ap);
4095 fprintf(stderr, "\n");
4099 * Open/create errors are reported with an console message in TShark.
4102 open_failure_message(const char *filename, int err, gboolean for_writing)
4104 fprintf(stderr, "tshark: ");
4105 fprintf(stderr, file_open_error_message(err, for_writing), filename);
4106 fprintf(stderr, "\n");
4110 * Read errors are reported with an console message in TShark.
4113 read_failure_message(const char *filename, int err)
4115 cmdarg_err("An error occurred while reading from the file \"%s\": %s.",
4116 filename, g_strerror(err));
4120 * Write errors are reported with an console message in TShark.
4123 write_failure_message(const char *filename, int err)
4125 cmdarg_err("An error occurred while writing to the file \"%s\": %s.",
4126 filename, g_strerror(err));
4129 static void reset_epan_mem(capture_file *cf,epan_dissect_t *edt, gboolean tree, gboolean visual)
4131 if (!epan_auto_reset || (cf->count < epan_auto_reset_count))
4134 fprintf(stderr, "resetting session.\n");
4136 epan_dissect_cleanup(edt);
4137 epan_free(cf->epan);
4139 cf->epan = tshark_epan_new(cf);
4140 epan_dissect_init(edt, cf->epan, tree, visual);
4145 * Report additional information for an error in command-line arguments.
4148 failure_message_cont(const char *msg_format, va_list ap)
4150 vfprintf(stderr, msg_format, ap);
4151 fprintf(stderr, "\n");
4155 * Editor modelines - https://www.wireshark.org/tools/modelines.html
4160 * indent-tabs-mode: nil
4163 * vi: set shiftwidth=2 tabstop=8 expandtab:
4164 * :indentSize=2:tabSize=8:noTabs=true:
git.samba.org / metze / wireshark / wip.git / blob