3 * Text-mode variant of Fileshark, based off of TShark,
5 * Wireshark - Network traffic analyzer
6 * By Gerald Combs <gerald@wireshark.org>
7 * Copyright 1998 Gerald Combs
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; either version 2
12 * of the License, or (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
39 #include <zlib.h> /* to get the libz version number */
42 #ifndef HAVE_GETOPT_LONG
43 #include "wsutil/wsgetopt.h"
48 #include <epan/exceptions.h>
49 #include <epan/epan-int.h>
50 #include <epan/epan.h>
52 #include <wsutil/clopts_common.h>
53 #include <wsutil/cmdarg_err.h>
54 #include <wsutil/crash_info.h>
55 #include <wsutil/filesystem.h>
56 #include <wsutil/file_util.h>
57 #include <wsutil/privileges.h>
58 #include <wsutil/report_err.h>
59 #include <wsutil/ws_diag_control.h>
60 #include <wsutil/ws_version_info.h>
63 #include <epan/timestamp.h>
64 #include <epan/packet.h>
66 #include <epan/wslua/init_wslua.h>
69 #include "frame_tvbuff.h"
70 #include <epan/disabled_protos.h>
71 #include <epan/prefs.h>
72 #include <epan/column.h>
73 #include <epan/print.h>
74 #include <epan/addr_resolv.h>
77 #include <epan/epan_dissect.h>
79 #include <epan/stat_tap_ui.h>
80 #include <epan/ex-opt.h>
82 #if defined(HAVE_HEIMDAL_KERBEROS) || defined(HAVE_MIT_KERBEROS)
83 #include <epan/asn1.h>
84 #include <epan/dissectors/packet-kerberos.h>
87 #include <wiretap/wtap-int.h>
88 #include <wiretap/file_wrappers.h>
91 #include <wsutil/unicode-utils.h>
95 #include <epan/funnel.h>
98 #include <wsutil/plugins.h>
102 * This is the template for the decode as option; it is shared between the
103 * various functions that output the usage for this parameter.
105 static const gchar decode_as_arg_template[] = "<layer_type>==<selector>,<decode_as_protocol>";
107 static guint32 cum_bytes;
108 static const frame_data *ref;
109 static frame_data ref_frame;
110 static frame_data *prev_dis;
111 static frame_data prev_dis_frame;
112 static frame_data *prev_cap;
113 static frame_data prev_cap_frame;
115 static const char* prev_display_dissector_name = NULL;
117 static gboolean perform_two_pass_analysis;
120 * The way the packet decode is to be written.
123 WRITE_TEXT, /* summary or detail text */
124 WRITE_XML, /* PDML or PSML */
125 WRITE_FIELDS /* User defined list of fields */
126 /* Add CSV and the like here */
129 static output_action_e output_action;
130 static gboolean do_dissection; /* TRUE if we have to dissect each packet */
131 static gboolean print_packet_info; /* TRUE if we're to print packet information */
132 static gint print_summary = -1; /* TRUE if we're to print packet summary information */
133 static gboolean print_details; /* TRUE if we're to print packet details information */
134 static gboolean print_hex; /* TRUE if we're to print hex/ascci information */
135 static gboolean line_buffered;
136 static gboolean really_quiet = FALSE;
138 static print_format_e print_format = PR_FMT_TEXT;
139 static print_stream_t *print_stream;
141 static output_fields_t* output_fields = NULL;
143 /* The line separator used between packets, changeable via the -S option */
144 static const char *separator = "";
146 static int load_cap_file(capture_file *, int, gint64);
147 static gboolean process_packet(capture_file *cf, epan_dissect_t *edt, gint64 offset,
148 struct wtap_pkthdr *whdr, const guchar *pd, guint tap_flags);
149 static void show_print_file_io_error(int err);
150 static gboolean write_preamble(capture_file *cf);
151 static gboolean print_packet(capture_file *cf, epan_dissect_t *edt);
152 static gboolean write_finale(void);
153 static const char *cf_open_error_message(int err, gchar *err_info,
154 gboolean for_writing, int file_type);
156 static void open_failure_message(const char *filename, int err,
157 gboolean for_writing);
158 static void failure_message(const char *msg_format, va_list ap);
159 static void read_failure_message(const char *filename, int err);
160 static void write_failure_message(const char *filename, int err);
161 static void failure_message_cont(const char *msg_format, va_list ap);
165 static GHashTable *output_only_tables = NULL;
169 const char *sstr; /* The short string */
170 const char *lstr; /* The long string */
174 string_compare(gconstpointer a, gconstpointer b)
176 return strcmp(((const struct string_elem *)a)->sstr,
177 ((const struct string_elem *)b)->sstr);
181 string_elem_print(gpointer data, gpointer not_used _U_)
183 fprintf(stderr, " %s - %s\n",
184 ((struct string_elem *)data)->sstr,
185 ((struct string_elem *)data)->lstr);
190 print_usage(FILE *output)
192 fprintf(output, "\n");
193 fprintf(output, "Usage: tfshark [options] ...\n");
194 fprintf(output, "\n");
196 /*fprintf(output, "\n");*/
197 fprintf(output, "Input file:\n");
198 fprintf(output, " -r <infile> set the filename to read from (no pipes or stdin!)\n");
200 fprintf(output, "\n");
201 fprintf(output, "Processing:\n");
202 fprintf(output, " -2 perform a two-pass analysis\n");
203 fprintf(output, " -R <read filter> packet Read filter in Wireshark display filter syntax\n");
204 fprintf(output, " -Y <display filter> packet displaY filter in Wireshark display filter\n");
205 fprintf(output, " syntax\n");
206 fprintf(output, " -d %s ...\n", decode_as_arg_template);
207 fprintf(output, " \"Decode As\", see the man page for details\n");
208 fprintf(output, " Example: tcp.port==8888,http\n");
210 /*fprintf(output, "\n");*/
211 fprintf(output, "Output:\n");
212 fprintf(output, " -C <config profile> start with specified configuration profile\n");
213 fprintf(output, " -V add output of packet tree (Packet Details)\n");
214 fprintf(output, " -O <protocols> Only show packet details of these protocols, comma\n");
215 fprintf(output, " separated\n");
216 fprintf(output, " -S <separator> the line separator to print between packets\n");
217 fprintf(output, " -x add output of hex and ASCII dump (Packet Bytes)\n");
218 fprintf(output, " -T pdml|ps|psml|text|fields\n");
219 fprintf(output, " format of text output (def: text)\n");
220 fprintf(output, " -e <field> field to print if -Tfields selected (e.g. tcp.port,\n");
221 fprintf(output, " _ws.col.Info)\n");
222 fprintf(output, " this option can be repeated to print multiple fields\n");
223 fprintf(output, " -E<fieldsoption>=<value> set options for output when -Tfields selected:\n");
224 fprintf(output, " header=y|n switch headers on and off\n");
225 fprintf(output, " separator=/t|/s|<char> select tab, space, printable character as separator\n");
226 fprintf(output, " occurrence=f|l|a print first, last or all occurrences of each field\n");
227 fprintf(output, " aggregator=,|/s|<char> select comma, space, printable character as\n");
228 fprintf(output, " aggregator\n");
229 fprintf(output, " quote=d|s|n select double, single, no quotes for values\n");
230 fprintf(output, " -t a|ad|d|dd|e|r|u|ud output format of time stamps (def: r: rel. to first)\n");
231 fprintf(output, " -u s|hms output format of seconds (def: s: seconds)\n");
232 fprintf(output, " -l flush standard output after each packet\n");
233 fprintf(output, " -q be more quiet on stdout (e.g. when using statistics)\n");
234 fprintf(output, " -Q only log true errors to stderr (quieter than -q)\n");
235 fprintf(output, " -X <key>:<value> eXtension options, see the man page for details\n");
236 fprintf(output, " -z <statistics> various statistics, see the man page for details\n");
238 fprintf(output, "\n");
239 fprintf(output, "Miscellaneous:\n");
240 fprintf(output, " -h display this help and exit\n");
241 fprintf(output, " -v display version info and exit\n");
242 fprintf(output, " -o <name>:<value> ... override preference setting\n");
243 fprintf(output, " -K <keytab> keytab file to use for kerberos decryption\n");
244 fprintf(output, " -G [report] dump one of several available reports and exit\n");
245 fprintf(output, " default report=\"fields\"\n");
246 fprintf(output, " use \"-G ?\" for more help\n");
250 glossary_option_help(void)
256 fprintf(output, "TFShark (Wireshark) %s\n", get_ws_vcs_version_info());
258 fprintf(output, "\n");
259 fprintf(output, "Usage: tfshark -G [report]\n");
260 fprintf(output, "\n");
261 fprintf(output, "Glossary table reports:\n");
262 fprintf(output, " -G column-formats dump column format codes and exit\n");
263 fprintf(output, " -G decodes dump \"layer type\"/\"decode as\" associations and exit\n");
264 fprintf(output, " -G dissector-tables dump dissector table names, types, and properties\n");
265 fprintf(output, " -G fields dump fields glossary and exit\n");
266 fprintf(output, " -G ftypes dump field type basic and descriptive names\n");
267 fprintf(output, " -G heuristic-decodes dump heuristic dissector tables\n");
268 fprintf(output, " -G plugins dump installed plugins and exit\n");
269 fprintf(output, " -G protocols dump protocols in registration database and exit\n");
270 fprintf(output, " -G values dump value, range, true/false strings and exit\n");
271 fprintf(output, "\n");
272 fprintf(output, "Preference reports:\n");
273 fprintf(output, " -G currentprefs dump current preferences and exit\n");
274 fprintf(output, " -G defaultprefs dump default preferences and exit\n");
275 fprintf(output, "\n");
279 * For a dissector table, print on the stream described by output,
280 * its short name (which is what's used in the "-d" option) and its
284 display_dissector_table_names(const char *table_name, const char *ui_name,
287 if ((prev_display_dissector_name == NULL) ||
288 (strcmp(prev_display_dissector_name, table_name) != 0)) {
289 fprintf((FILE *)output, "\t%s (%s)\n", table_name, ui_name);
290 prev_display_dissector_name = table_name;
295 * For a dissector handle, print on the stream described by output,
296 * the filter name (which is what's used in the "-d" option) and the full
297 * name for the protocol that corresponds to this handle.
300 display_dissector_names(const gchar *table _U_, gpointer handle, gpointer output)
303 const gchar *proto_filter_name;
304 const gchar *proto_ui_name;
306 proto_id = dissector_handle_get_protocol_index((dissector_handle_t)handle);
308 if (proto_id != -1) {
309 proto_filter_name = proto_get_protocol_filter_name(proto_id);
310 proto_ui_name = proto_get_protocol_name(proto_id);
311 g_assert(proto_filter_name != NULL);
312 g_assert(proto_ui_name != NULL);
314 if ((prev_display_dissector_name == NULL) ||
315 (strcmp(prev_display_dissector_name, proto_filter_name) != 0)) {
316 fprintf((FILE *)output, "\t%s (%s)\n",
319 prev_display_dissector_name = proto_filter_name;
325 * The protocol_name_search structure is used by find_protocol_name_func()
326 * to pass parameters and store results
328 struct protocol_name_search{
329 gchar *searched_name; /* Protocol filter name we are looking for */
330 dissector_handle_t matched_handle; /* Handle for a dissector whose protocol has the specified filter name */
331 guint nb_match; /* How many dissectors matched searched_name */
333 typedef struct protocol_name_search *protocol_name_search_t;
336 * This function parses all dissectors associated with a table to find the
337 * one whose protocol has the specified filter name. It is called
338 * as a reference function in a call to dissector_table_foreach_handle.
339 * The name we are looking for, as well as the results, are stored in the
340 * protocol_name_search struct pointed to by user_data.
341 * If called using dissector_table_foreach_handle, we actually parse the
342 * whole list of dissectors.
345 find_protocol_name_func(const gchar *table _U_, gpointer handle, gpointer user_data)
349 const gchar *protocol_filter_name;
350 protocol_name_search_t search_info;
354 search_info = (protocol_name_search_t)user_data;
356 proto_id = dissector_handle_get_protocol_index((dissector_handle_t)handle);
357 if (proto_id != -1) {
358 protocol_filter_name = proto_get_protocol_filter_name(proto_id);
359 g_assert(protocol_filter_name != NULL);
360 if (strcmp(protocol_filter_name, search_info->searched_name) == 0) {
362 if (search_info->nb_match == 0) {
363 /* Record this handle only if this is the first match */
364 search_info->matched_handle = (dissector_handle_t)handle; /* Record the handle for this matching dissector */
366 search_info->nb_match++;
372 * Allow dissector key names to be sorted alphabetically
376 compare_dissector_key_name(gconstpointer dissector_a, gconstpointer dissector_b)
378 return strcmp((const char*)dissector_a, (const char*)dissector_b);
382 * Print all layer type names supported.
383 * We send the output to the stream described by the handle output.
387 fprint_all_layer_types(FILE *output)
390 prev_display_dissector_name = NULL;
391 dissector_all_tables_foreach_table(display_dissector_table_names, (gpointer)output, (GCompareFunc)compare_dissector_key_name);
395 * Print all protocol names supported for a specific layer type.
396 * table_name contains the layer type name in which the search is performed.
397 * We send the output to the stream described by the handle output.
401 fprint_all_protocols_for_layer_types(FILE *output, gchar *table_name)
404 prev_display_dissector_name = NULL;
405 dissector_table_foreach_handle(table_name,
406 display_dissector_names,
411 * The function below parses the command-line parameters for the decode as
412 * feature (a string pointer by cl_param).
413 * It checks the format of the command-line, searches for a matching table
414 * and dissector. If a table/dissector match is not found, we display a
415 * summary of the available tables/dissectors (on stderr) and return FALSE.
416 * If everything is fine, we get the "Decode as" preference activated,
417 * then we return TRUE.
420 add_decode_as(const gchar *cl_param)
423 guint32 selector, selector2;
424 gchar *decoded_param;
425 gchar *remaining_param;
427 gchar *dissector_str;
428 dissector_handle_t dissector_matching;
429 dissector_table_t table_matching;
430 ftenum_t dissector_table_selector_type;
431 struct protocol_name_search user_protocol_name;
435 /* The following code will allocate and copy the command-line options in a string pointed by decoded_param */
438 decoded_param = g_strdup(cl_param);
439 g_assert(decoded_param);
442 /* The lines below will parse this string (modifying it) to extract all
443 necessary information. Note that decoded_param is still needed since
444 strings are not copied - we just save pointers. */
446 /* This section extracts a layer type (table_name) from decoded_param */
447 table_name = decoded_param; /* Layer type string starts from beginning */
449 remaining_param = strchr(table_name, '=');
450 if (remaining_param == NULL) {
451 cmdarg_err("Parameter \"%s\" doesn't follow the template \"%s\"", cl_param, decode_as_arg_template);
452 /* If the argument does not follow the template, carry on anyway to check
453 if the table name is at least correct. If remaining_param is NULL,
454 we'll exit anyway further down */
457 *remaining_param = '\0'; /* Terminate the layer type string (table_name) where '=' was detected */
460 /* Remove leading and trailing spaces from the table name */
461 while ( table_name[0] == ' ' )
463 while ( table_name[strlen(table_name) - 1] == ' ' )
464 table_name[strlen(table_name) - 1] = '\0'; /* Note: if empty string, while loop will eventually exit */
466 /* The following part searches a table matching with the layer type specified */
467 table_matching = NULL;
469 /* Look for the requested table */
470 if ( !(*(table_name)) ) { /* Is the table name empty, if so, don't even search for anything, display a message */
471 cmdarg_err("No layer type specified"); /* Note, we don't exit here, but table_matching will remain NULL, so we exit below */
474 table_matching = find_dissector_table(table_name);
475 if (!table_matching) {
476 cmdarg_err("Unknown layer type -- %s", table_name); /* Note, we don't exit here, but table_matching will remain NULL, so we exit below */
480 if (!table_matching) {
481 /* Display a list of supported layer types to help the user, if the
482 specified layer type was not found */
483 cmdarg_err("Valid layer types are:");
484 fprint_all_layer_types(stderr);
486 if (remaining_param == NULL || !table_matching) {
487 /* Exit if the layer type was not found, or if no '=' separator was found
489 g_free(decoded_param);
493 if (*(remaining_param + 1) != '=') { /* Check for "==" and not only '=' */
494 cmdarg_err("WARNING: -d requires \"==\" instead of \"=\". Option will be treated as \"%s==%s\"", table_name, remaining_param + 1);
497 remaining_param++; /* Move to the second '=' */
498 *remaining_param = '\0'; /* Remove the second '=' */
500 remaining_param++; /* Position after the layer type string */
502 /* This section extracts a selector value (selector_str) from decoded_param */
504 selector_str = remaining_param; /* Next part starts with the selector number */
506 remaining_param = strchr(selector_str, ',');
507 if (remaining_param == NULL) {
508 cmdarg_err("Parameter \"%s\" doesn't follow the template \"%s\"", cl_param, decode_as_arg_template);
509 /* If the argument does not follow the template, carry on anyway to check
510 if the selector value is at least correct. If remaining_param is NULL,
511 we'll exit anyway further down */
514 *remaining_param = '\0'; /* Terminate the selector number string (selector_str) where ',' was detected */
517 dissector_table_selector_type = get_dissector_table_selector_type(table_name);
519 switch (dissector_table_selector_type) {
525 /* The selector for this table is an unsigned number. Parse it as such.
526 There's no need to remove leading and trailing spaces from the
527 selector number string, because sscanf will do that for us. */
528 switch (sscanf(selector_str, "%u%c%u", &selector, &op, &selector2)) {
533 if (op != ':' && op != '-') {
534 cmdarg_err("Invalid selector numeric range \"%s\"", selector_str);
535 g_free(decoded_param);
539 if ((selector2 == 0) || ((guint64)selector + selector2 - 1) > G_MAXUINT32) {
540 cmdarg_err("Invalid selector numeric range \"%s\"", selector_str);
541 g_free(decoded_param);
545 else if (selector2 < selector) {
546 /* We could swap them for the user, but maybe it's better to call
547 * this out as an error in case it's not what was intended? */
548 cmdarg_err("Invalid selector numeric range \"%s\"", selector_str);
549 g_free(decoded_param);
554 cmdarg_err("Invalid selector number \"%s\"", selector_str);
555 g_free(decoded_param);
564 /* The selector for this table is a string. */
568 /* There are currently no dissector tables with any types other
569 than the ones listed above. */
570 g_assert_not_reached();
573 if (remaining_param == NULL) {
574 /* Exit if no ',' separator was found (see above) */
575 cmdarg_err("Valid protocols for layer type \"%s\" are:", table_name);
576 fprint_all_protocols_for_layer_types(stderr, table_name);
577 g_free(decoded_param);
581 remaining_param++; /* Position after the selector number string */
583 /* This section extracts a protocol filter name (dissector_str) from decoded_param */
585 dissector_str = remaining_param; /* All the rest of the string is the dissector (decode as protocol) name */
587 /* Remove leading and trailing spaces from the dissector name */
588 while ( dissector_str[0] == ' ' )
590 while ( dissector_str[strlen(dissector_str) - 1] == ' ' )
591 dissector_str[strlen(dissector_str) - 1] = '\0'; /* Note: if empty string, while loop will eventually exit */
593 dissector_matching = NULL;
595 /* We now have a pointer to the handle for the requested table inside the variable table_matching */
596 if ( ! (*dissector_str) ) { /* Is the dissector name empty, if so, don't even search for a matching dissector and display all dissectors found for the selected table */
597 cmdarg_err("No protocol name specified"); /* Note, we don't exit here, but dissector_matching will remain NULL, so we exit below */
600 user_protocol_name.nb_match = 0;
601 user_protocol_name.searched_name = dissector_str;
602 user_protocol_name.matched_handle = NULL;
604 dissector_table_foreach_handle(table_name, find_protocol_name_func, &user_protocol_name); /* Go and perform the search for this dissector in the this table's dissectors' names and shortnames */
606 if (user_protocol_name.nb_match != 0) {
607 dissector_matching = user_protocol_name.matched_handle;
608 if (user_protocol_name.nb_match > 1) {
609 cmdarg_err("WARNING: Protocol \"%s\" matched %u dissectors, first one will be used", dissector_str, user_protocol_name.nb_match);
613 /* OK, check whether the problem is that there isn't any such
614 protocol, or that there is but it's not specified as a protocol
615 that's valid for that dissector table.
616 Note, we don't exit here, but dissector_matching will remain NULL,
618 if (proto_get_id_by_filter_name(dissector_str) == -1) {
619 /* No such protocol */
620 cmdarg_err("Unknown protocol -- \"%s\"", dissector_str);
622 cmdarg_err("Protocol \"%s\" isn't valid for layer type \"%s\"",
623 dissector_str, table_name);
628 if (!dissector_matching) {
629 cmdarg_err("Valid protocols for layer type \"%s\" are:", table_name);
630 fprint_all_protocols_for_layer_types(stderr, table_name);
631 g_free(decoded_param);
635 /* This is the end of the code that parses the command-line options.
636 All information is now stored in the variables:
640 The above variables that are strings are still pointing to areas within
641 decoded_parm. decoded_parm thus still needs to be kept allocated in
642 until we stop needing these variables
643 decoded_param will be deallocated at each exit point of this function */
646 /* We now have a pointer to the handle for the requested dissector
647 (requested protocol) inside the variable dissector_matching */
648 switch (dissector_table_selector_type) {
654 /* The selector for this table is an unsigned number. */
656 dissector_change_uint(table_name, selector, dissector_matching);
657 } else if (op == ':') {
658 for (i = selector; i < (guint64)selector + selector2; i++) {
659 dissector_change_uint(table_name, (guint32)i, dissector_matching);
661 } else { /* op == '-' */
662 for (i = selector; i <= selector2; i++) {
663 dissector_change_uint(table_name, (guint32)i, dissector_matching);
672 /* The selector for this table is a string. */
673 dissector_change_string(table_name, selector_str, dissector_matching);
677 /* There are currently no dissector tables with any types other
678 than the ones listed above. */
679 g_assert_not_reached();
681 g_free(decoded_param); /* "Decode As" rule has been successfully added */
686 tfshark_log_handler (const gchar *log_domain, GLogLevelFlags log_level,
687 const gchar *message, gpointer user_data)
689 /* ignore log message, if log_level isn't interesting based
690 upon the console log preferences.
691 If the preferences haven't been loaded loaded yet, display the
694 The default console_log_level preference value is such that only
695 ERROR, CRITICAL and WARNING level messages are processed;
696 MESSAGE, INFO and DEBUG level messages are ignored.
698 XXX: Aug 07, 2009: Prior tshark g_log code was hardwired to process only
699 ERROR and CRITICAL level messages so the current code is a behavioral
700 change. The current behavior is the same as in Wireshark.
702 if ((log_level & G_LOG_LEVEL_MASK & prefs.console_log_level) == 0 &&
703 prefs.console_log_level != 0) {
707 g_log_default_handler(log_domain, log_level, message, user_data);
712 print_current_user(void) {
713 gchar *cur_user, *cur_group;
715 if (started_with_special_privs()) {
716 cur_user = get_cur_username();
717 cur_group = get_cur_groupname();
718 fprintf(stderr, "Running as user \"%s\" and group \"%s\".",
719 cur_user, cur_group);
722 if (running_with_special_privs()) {
723 fprintf(stderr, " This could be dangerous.");
725 fprintf(stderr, "\n");
730 get_tfshark_compiled_version_info(GString *str)
734 g_string_append(str, "with libz ");
736 g_string_append(str, ZLIB_VERSION);
737 #else /* ZLIB_VERSION */
738 g_string_append(str, "(version unknown)");
739 #endif /* ZLIB_VERSION */
740 #else /* HAVE_LIBZ */
741 g_string_append(str, "without libz");
742 #endif /* HAVE_LIBZ */
746 get_tfshark_runtime_version_info(GString *str)
749 #if defined(HAVE_LIBZ) && !defined(_WIN32)
750 g_string_append_printf(str, ", with libz %s", zlibVersion());
753 /* stuff used by libwireshark */
754 epan_get_runtime_version_info(str);
758 main(int argc, char *argv[])
760 GString *comp_info_str;
761 GString *runtime_info_str;
762 char *init_progfile_dir_error;
764 static const struct option long_options[] = {
765 {"help", no_argument, NULL, 'h'},
766 {"version", no_argument, NULL, 'v'},
769 gboolean arg_error = FALSE;
771 char *gpf_path, *pf_path;
772 char *gdp_path, *dp_path;
773 int gpf_open_errno, gpf_read_errno;
774 int pf_open_errno, pf_read_errno;
775 int gdp_open_errno, gdp_read_errno;
776 int dp_open_errno, dp_read_errno;
778 volatile int exit_status = 0;
779 gboolean quiet = FALSE;
780 gchar *volatile cf_name = NULL;
781 gchar *rfilter = NULL;
782 gchar *dfilter = NULL;
783 dfilter_t *rfcode = NULL;
784 dfilter_t *dfcode = NULL;
788 gchar *output_only = NULL;
791 * The leading + ensures that getopt_long() does not permute the argv[]
794 * We have to make sure that the first getopt_long() preserves the content
795 * of argv[] for the subsequent getopt_long() call.
797 * We use getopt_long() in both cases to ensure that we're using a routine
798 * whose permutation behavior we can control in the same fashion on all
799 * platforms, and so that, if we ever need to process a long argument before
800 * doing further initialization, we can do so.
802 * Glibc and Solaris libc document that a leading + disables permutation
803 * of options, regardless of whether POSIXLY_CORRECT is set or not; *BSD
804 * and OS X don't document it, but do so anyway.
806 * We do *not* use a leading - because the behavior of a leading - is
807 * platform-dependent.
809 #define OPTSTRING "+2C:d:e:E:hK:lo:O:qQr:R:S:t:T:u:vVxX:Y:z:"
811 static const char optstring[] = OPTSTRING;
813 /* Set the C-language locale to the native environment. */
814 setlocale(LC_ALL, "");
816 cmdarg_err_init(failure_message, failure_message_cont);
819 arg_list_utf_16to8(argc, argv);
820 create_app_running_mutex();
821 #if !GLIB_CHECK_VERSION(2,31,0)
827 * Get credential information for later use, and drop privileges
828 * before doing anything else.
829 * Let the user know if anything happened.
831 init_process_policies();
832 relinquish_special_privs_perm();
833 print_current_user();
836 * Attempt to get the pathname of the executable file.
838 init_progfile_dir_error = init_progfile_dir(argv[0], (void *)main);
839 if (init_progfile_dir_error != NULL) {
840 fprintf(stderr, "tfshark: Can't get pathname of tfshark program: %s.\n",
841 init_progfile_dir_error);
844 initialize_funnel_ops();
846 /* Get the compile-time version information string */
847 comp_info_str = get_compiled_version_info(get_tfshark_compiled_version_info,
848 epan_get_compiled_version_info);
850 /* Get the run-time version information string */
851 runtime_info_str = get_runtime_version_info(get_tfshark_runtime_version_info);
853 /* Add it to the information to be reported on a crash. */
854 ws_add_crash_info("TFShark (Wireshark) %s\n"
859 get_ws_vcs_version_info(), comp_info_str->str, runtime_info_str->str);
862 * In order to have the -X opts assigned before the wslua machine starts
863 * we need to call getopts before epan_init() gets called.
865 * In order to handle, for example, -o options, we also need to call it
866 * *after* epan_init() gets called, so that the dissectors have had a
867 * chance to register their preferences.
869 * XXX - can we do this all with one getopt_long() call, saving the
870 * arguments we can't handle until after initializing libwireshark,
871 * and then process them after initializing libwireshark?
875 while ((opt = getopt_long(argc, argv, optstring, long_options, NULL)) != -1) {
877 case 'C': /* Configuration Profile */
878 if (profile_exists (optarg, FALSE)) {
879 set_profile_name (optarg);
881 cmdarg_err("Configuration Profile \"%s\" does not exist", optarg);
885 case 'O': /* Only output these protocols */
886 output_only = g_strdup(optarg);
888 case 'V': /* Verbose */
889 print_details = TRUE;
890 print_packet_info = TRUE;
892 case 'x': /* Print packet data in hex (and ASCII) */
894 /* The user asked for hex output, so let's ensure they get it,
895 * even if they're writing to a file.
897 print_packet_info = TRUE;
908 * Print packet summary information is the default, unless either -V or -x
909 * were specified. Note that this is new behavior, which
910 * allows for the possibility of printing only hex/ascii output without
911 * necessarily requiring that either the summary or details be printed too.
913 if (print_summary == -1)
914 print_summary = (print_details || print_hex) ? FALSE : TRUE;
916 /** Send All g_log messages to our own handler **/
920 G_LOG_LEVEL_CRITICAL|
925 G_LOG_FLAG_FATAL|G_LOG_FLAG_RECURSION;
927 g_log_set_handler(NULL,
928 (GLogLevelFlags)log_flags,
929 tfshark_log_handler, NULL /* user_data */);
930 g_log_set_handler(LOG_DOMAIN_MAIN,
931 (GLogLevelFlags)log_flags,
932 tfshark_log_handler, NULL /* user_data */);
934 init_report_err(failure_message, open_failure_message, read_failure_message,
935 write_failure_message);
937 timestamp_set_type(TS_RELATIVE);
938 timestamp_set_precision(TS_PREC_AUTO);
939 timestamp_set_seconds_type(TS_SECONDS_DEFAULT);
941 init_open_routines();
944 /* Register all the plugin types we have. */
945 epan_register_plugin_types(); /* Types known to libwireshark */
947 /* Scan for plugins. This does *not* call their registration routines;
948 that's done later. */
953 /* Register all dissectors; we must do this before checking for the
954 "-G" flag, as the "-G" flag dumps information registered by the
955 dissectors, and we must do it before we read the preferences, in
956 case any dissectors register preferences. */
957 if (!epan_init(register_all_protocols, register_all_protocol_handoffs, NULL,
961 /* Register all tap listeners; we do this before we parse the arguments,
962 as the "-z" argument can specify a registered tap. */
964 /* we register the plugin taps before the other taps because
965 stats_tree taps plugins will be registered as tap listeners
966 by stats_tree_stat.c and need to registered before that */
968 /* XXX Disable tap registration for now until we can get tfshark set up with
969 * its own set of taps and the necessary registration function etc.
971 register_all_plugin_tap_listeners();
973 register_all_tap_listeners();
976 /* If invoked with the "-G" flag, we dump out information based on
977 the argument to the "-G" flag; if no argument is specified,
978 for backwards compatibility we dump out a glossary of display
981 XXX - we do this here, for now, to support "-G" with no arguments.
982 If none of our build or other processes uses "-G" with no arguments,
983 we can just process it with the other arguments. */
984 if (argc >= 2 && strcmp(argv[1], "-G") == 0) {
985 proto_initialize_all_prefixes();
988 proto_registrar_dump_fields();
990 if (strcmp(argv[2], "column-formats") == 0)
991 column_dump_column_formats();
992 else if (strcmp(argv[2], "currentprefs") == 0) {
993 read_prefs(&gpf_open_errno, &gpf_read_errno, &gpf_path,
994 &pf_open_errno, &pf_read_errno, &pf_path);
997 else if (strcmp(argv[2], "decodes") == 0)
998 dissector_dump_decodes();
999 else if (strcmp(argv[2], "defaultprefs") == 0)
1001 else if (strcmp(argv[2], "dissector-tables") == 0)
1002 dissector_dump_dissector_tables();
1003 else if (strcmp(argv[2], "fields") == 0)
1004 proto_registrar_dump_fields();
1005 else if (strcmp(argv[2], "ftypes") == 0)
1006 proto_registrar_dump_ftypes();
1007 else if (strcmp(argv[2], "heuristic-decodes") == 0)
1008 dissector_dump_heur_decodes();
1009 else if (strcmp(argv[2], "plugins") == 0) {
1014 wslua_plugins_dump_all();
1017 else if (strcmp(argv[2], "protocols") == 0)
1018 proto_registrar_dump_protocols();
1019 else if (strcmp(argv[2], "values") == 0)
1020 proto_registrar_dump_values();
1021 else if (strcmp(argv[2], "?") == 0)
1022 glossary_option_help();
1023 else if (strcmp(argv[2], "-?") == 0)
1024 glossary_option_help();
1026 cmdarg_err("Invalid \"%s\" option for -G flag, enter -G ? for more help.", argv[2]);
1033 prefs_p = read_prefs(&gpf_open_errno, &gpf_read_errno, &gpf_path,
1034 &pf_open_errno, &pf_read_errno, &pf_path);
1035 if (gpf_path != NULL) {
1036 if (gpf_open_errno != 0) {
1037 cmdarg_err("Can't open global preferences file \"%s\": %s.",
1038 pf_path, g_strerror(gpf_open_errno));
1040 if (gpf_read_errno != 0) {
1041 cmdarg_err("I/O error reading global preferences file \"%s\": %s.",
1042 pf_path, g_strerror(gpf_read_errno));
1045 if (pf_path != NULL) {
1046 if (pf_open_errno != 0) {
1047 cmdarg_err("Can't open your preferences file \"%s\": %s.", pf_path,
1048 g_strerror(pf_open_errno));
1050 if (pf_read_errno != 0) {
1051 cmdarg_err("I/O error reading your preferences file \"%s\": %s.",
1052 pf_path, g_strerror(pf_read_errno));
1058 /* Read the disabled protocols file. */
1059 read_disabled_protos_list(&gdp_path, &gdp_open_errno, &gdp_read_errno,
1060 &dp_path, &dp_open_errno, &dp_read_errno);
1061 read_disabled_heur_dissector_list(&gdp_path, &gdp_open_errno, &gdp_read_errno,
1062 &dp_path, &dp_open_errno, &dp_read_errno);
1063 if (gdp_path != NULL) {
1064 if (gdp_open_errno != 0) {
1065 cmdarg_err("Could not open global disabled protocols file\n\"%s\": %s.",
1066 gdp_path, g_strerror(gdp_open_errno));
1068 if (gdp_read_errno != 0) {
1069 cmdarg_err("I/O error reading global disabled protocols file\n\"%s\": %s.",
1070 gdp_path, g_strerror(gdp_read_errno));
1074 if (dp_path != NULL) {
1075 if (dp_open_errno != 0) {
1077 "Could not open your disabled protocols file\n\"%s\": %s.", dp_path,
1078 g_strerror(dp_open_errno));
1080 if (dp_read_errno != 0) {
1082 "I/O error reading your disabled protocols file\n\"%s\": %s.", dp_path,
1083 g_strerror(dp_read_errno));
1088 cap_file_init(&cfile);
1090 /* Print format defaults to this. */
1091 print_format = PR_FMT_TEXT;
1093 output_fields = output_fields_new();
1096 * To reset the options parser, set optreset to 1 on platforms that
1097 * have optreset (documented in *BSD and OS X, apparently present but
1098 * not documented in Solaris - the Illumos repository seems to
1099 * suggest that the first Solaris getopt_long(), at least as of 2004,
1100 * was based on the NetBSD one, it had optreset) and set optind to 1,
1101 * and set optind to 0 otherwise (documented as working in the GNU
1102 * getopt_long(). Setting optind to 0 didn't originally work in the
1103 * NetBSD one, but that was added later - we don't want to depend on
1104 * it if we have optreset).
1106 * Also reset opterr to 1, so that error messages are printed by
1109 #ifdef HAVE_OPTRESET
1117 /* Now get our args */
1118 while ((opt = getopt_long(argc, argv, optstring, long_options, NULL)) != -1) {
1120 case '2': /* Perform two pass analysis */
1121 perform_two_pass_analysis = TRUE;
1124 /* already processed; just ignore it now */
1126 case 'd': /* Decode as rule */
1127 if (!add_decode_as(optarg))
1130 #if defined(HAVE_HEIMDAL_KERBEROS) || defined(HAVE_MIT_KERBEROS)
1131 case 'K': /* Kerberos keytab file */
1132 read_keytab_file(optarg);
1137 output_fields_add(output_fields, optarg);
1141 if (!output_fields_set_option(output_fields, optarg)) {
1142 cmdarg_err("\"%s\" is not a valid field output option=value pair.", optarg);
1143 output_fields_list_options(stderr);
1148 case 'h': /* Print help and exit */
1149 printf("TFShark (Wireshark) %s\n"
1150 "Dump and analyze network traffic.\n"
1151 "See https://www.wireshark.org for more information.\n",
1152 get_ws_vcs_version_info());
1153 print_usage(stdout);
1156 case 'l': /* "Line-buffer" standard output */
1157 /* This isn't line-buffering, strictly speaking, it's just
1158 flushing the standard output after the information for
1159 each packet is printed; however, that should be good
1160 enough for all the purposes to which "-l" is put (and
1161 is probably actually better for "-V", as it does fewer
1164 See the comment in "process_packet()" for an explanation of
1165 why we do that, and why we don't just use "setvbuf()" to
1166 make the standard output line-buffered (short version: in
1167 Windows, "line-buffered" is the same as "fully-buffered",
1168 and the output buffer is only flushed when it fills up). */
1169 line_buffered = TRUE;
1171 case 'o': /* Override preference from command line */
1172 switch (prefs_set_pref(optarg)) {
1177 case PREFS_SET_SYNTAX_ERR:
1178 cmdarg_err("Invalid -o flag \"%s\"", optarg);
1182 case PREFS_SET_NO_SUCH_PREF:
1183 case PREFS_SET_OBSOLETE:
1184 cmdarg_err("-o flag \"%s\" specifies unknown preference", optarg);
1189 case 'q': /* Quiet */
1192 case 'Q': /* Really quiet */
1194 really_quiet = TRUE;
1196 case 'r': /* Read capture file x */
1197 cf_name = g_strdup(optarg);
1199 case 'R': /* Read file filter */
1202 case 'S': /* Set the line Separator to be printed between packets */
1203 separator = g_strdup(optarg);
1205 case 't': /* Time stamp type */
1206 if (strcmp(optarg, "r") == 0)
1207 timestamp_set_type(TS_RELATIVE);
1208 else if (strcmp(optarg, "a") == 0)
1209 timestamp_set_type(TS_ABSOLUTE);
1210 else if (strcmp(optarg, "ad") == 0)
1211 timestamp_set_type(TS_ABSOLUTE_WITH_YMD);
1212 else if (strcmp(optarg, "adoy") == 0)
1213 timestamp_set_type(TS_ABSOLUTE_WITH_YDOY);
1214 else if (strcmp(optarg, "d") == 0)
1215 timestamp_set_type(TS_DELTA);
1216 else if (strcmp(optarg, "dd") == 0)
1217 timestamp_set_type(TS_DELTA_DIS);
1218 else if (strcmp(optarg, "e") == 0)
1219 timestamp_set_type(TS_EPOCH);
1220 else if (strcmp(optarg, "u") == 0)
1221 timestamp_set_type(TS_UTC);
1222 else if (strcmp(optarg, "ud") == 0)
1223 timestamp_set_type(TS_UTC_WITH_YMD);
1224 else if (strcmp(optarg, "udoy") == 0)
1225 timestamp_set_type(TS_UTC_WITH_YDOY);
1227 cmdarg_err("Invalid time stamp type \"%s\"; it must be one of:", optarg);
1228 cmdarg_err_cont("\t\"a\" for absolute\n"
1229 "\t\"ad\" for absolute with YYYY-MM-DD date\n"
1230 "\t\"adoy\" for absolute with YYYY/DOY date\n"
1231 "\t\"d\" for delta\n"
1232 "\t\"dd\" for delta displayed\n"
1233 "\t\"e\" for epoch\n"
1234 "\t\"r\" for relative\n"
1235 "\t\"u\" for absolute UTC\n"
1236 "\t\"ud\" for absolute UTC with YYYY-MM-DD date\n"
1237 "\t\"udoy\" for absolute UTC with YYYY/DOY date");
1241 case 'T': /* printing Type */
1242 if (strcmp(optarg, "text") == 0) {
1243 output_action = WRITE_TEXT;
1244 print_format = PR_FMT_TEXT;
1245 } else if (strcmp(optarg, "ps") == 0) {
1246 output_action = WRITE_TEXT;
1247 print_format = PR_FMT_PS;
1248 } else if (strcmp(optarg, "pdml") == 0) {
1249 output_action = WRITE_XML;
1250 print_details = TRUE; /* Need details */
1251 print_summary = FALSE; /* Don't allow summary */
1252 } else if (strcmp(optarg, "psml") == 0) {
1253 output_action = WRITE_XML;
1254 print_details = FALSE; /* Don't allow details */
1255 print_summary = TRUE; /* Need summary */
1256 } else if (strcmp(optarg, "fields") == 0) {
1257 output_action = WRITE_FIELDS;
1258 print_details = TRUE; /* Need full tree info */
1259 print_summary = FALSE; /* Don't allow summary */
1261 cmdarg_err("Invalid -T parameter \"%s\"; it must be one of:", optarg); /* x */
1262 cmdarg_err_cont("\t\"fields\" The values of fields specified with the -e option, in a form\n"
1263 "\t specified by the -E option.\n"
1264 "\t\"pdml\" Packet Details Markup Language, an XML-based format for the\n"
1265 "\t details of a decoded packet. This information is equivalent to\n"
1266 "\t the packet details printed with the -V flag.\n"
1267 "\t\"ps\" PostScript for a human-readable one-line summary of each of\n"
1268 "\t the packets, or a multi-line view of the details of each of\n"
1269 "\t the packets, depending on whether the -V flag was specified.\n"
1270 "\t\"psml\" Packet Summary Markup Language, an XML-based format for the\n"
1271 "\t summary information of a decoded packet. This information is\n"
1272 "\t equivalent to the information shown in the one-line summary\n"
1273 "\t printed by default.\n"
1274 "\t\"text\" Text of a human-readable one-line summary of each of the\n"
1275 "\t packets, or a multi-line view of the details of each of the\n"
1276 "\t packets, depending on whether the -V flag was specified.\n"
1277 "\t This is the default.");
1281 case 'u': /* Seconds type */
1282 if (strcmp(optarg, "s") == 0)
1283 timestamp_set_seconds_type(TS_SECONDS_DEFAULT);
1284 else if (strcmp(optarg, "hms") == 0)
1285 timestamp_set_seconds_type(TS_SECONDS_HOUR_MIN_SEC);
1287 cmdarg_err("Invalid seconds type \"%s\"; it must be one of:", optarg);
1288 cmdarg_err_cont("\t\"s\" for seconds\n"
1289 "\t\"hms\" for hours, minutes and seconds");
1293 case 'v': /* Show version and exit */
1295 show_version("TFShark (Wireshark)", comp_info_str, runtime_info_str);
1296 g_string_free(comp_info_str, TRUE);
1297 g_string_free(runtime_info_str, TRUE);
1298 /* We don't really have to cleanup here, but it's a convenient way to test
1299 * start-up and shut-down of the epan library without any UI-specific
1300 * cruft getting in the way. Makes the results of running
1301 * $ ./tools/valgrind-wireshark -n
1302 * much more useful. */
1306 case 'O': /* Only output these protocols */
1307 /* already processed; just ignore it now */
1309 case 'V': /* Verbose */
1310 /* already processed; just ignore it now */
1312 case 'x': /* Print packet data in hex (and ASCII) */
1313 /* already processed; just ignore it now */
1316 /* already processed; just ignore it now */
1322 /* We won't call the init function for the stat this soon
1323 as it would disallow MATE's fields (which are registered
1324 by the preferences set callback) from being used as
1325 part of a tap filter. Instead, we just add the argument
1326 to a list of stat arguments. */
1327 if (strcmp("help", optarg) == 0) {
1328 fprintf(stderr, "tfshark: The available statistics for the \"-z\" option are:\n");
1329 list_stat_cmd_args();
1332 if (!process_stat_cmd_arg(optarg)) {
1333 cmdarg_err("Invalid -z argument \"%s\"; it must be one of:", optarg);
1334 list_stat_cmd_args();
1339 case '?': /* Bad flag - print usage message */
1340 print_usage(stderr);
1346 /* If we specified output fields, but not the output field type... */
1347 if (WRITE_FIELDS != output_action && 0 != output_fields_num_fields(output_fields)) {
1348 cmdarg_err("Output fields were specified with \"-e\", "
1349 "but \"-Tfields\" was not specified.");
1351 } else if (WRITE_FIELDS == output_action && 0 == output_fields_num_fields(output_fields)) {
1352 cmdarg_err("\"-Tfields\" was specified, but no fields were "
1353 "specified with \"-e\".");
1358 /* If no capture filter or display filter has been specified, and there are
1359 still command-line arguments, treat them as the tokens of a capture
1360 filter (if no "-r" flag was specified) or a display filter (if a "-r"
1361 flag was specified. */
1362 if (optind < argc) {
1363 if (cf_name != NULL) {
1364 if (dfilter != NULL) {
1365 cmdarg_err("Display filters were specified both with \"-d\" "
1366 "and with additional command-line arguments.");
1369 dfilter = get_args_as_string(argc, argv, optind);
1373 /* if "-q" wasn't specified, we should print packet information */
1375 print_packet_info = TRUE;
1378 print_usage(stderr);
1383 if (output_action != WRITE_TEXT) {
1384 cmdarg_err("Raw packet hex data can only be printed as text or PostScript");
1389 if (output_only != NULL) {
1392 if (!print_details) {
1393 cmdarg_err("-O requires -V");
1397 output_only_tables = g_hash_table_new (g_str_hash, g_str_equal);
1398 for (ps = strtok (output_only, ","); ps; ps = strtok (NULL, ",")) {
1399 g_hash_table_insert(output_only_tables, (gpointer)ps, (gpointer)ps);
1403 if (rfilter != NULL && !perform_two_pass_analysis) {
1404 cmdarg_err("-R without -2 is deprecated. For single-pass filtering use -Y.");
1408 /* Notify all registered modules that have had any of their preferences
1409 changed either from one of the preferences file or from the command
1410 line that their preferences have changed. */
1413 /* At this point MATE will have registered its field array so we can
1414 have a tap filter with one of MATE's late-registered fields as part
1415 of the filter. We can now process all the "-z" arguments. */
1416 start_requested_stats();
1418 /* disabled protocols as per configuration file */
1419 if (gdp_path == NULL && dp_path == NULL) {
1420 set_disabled_protos_list();
1421 set_disabled_heur_dissector_list();
1424 /* Build the column format array */
1425 build_column_format_array(&cfile.cinfo, prefs_p->num_cols, TRUE);
1427 if (rfilter != NULL) {
1428 if (!dfilter_compile(rfilter, &rfcode, &err_msg)) {
1429 cmdarg_err("%s", err_msg);
1435 cfile.rfcode = rfcode;
1437 if (dfilter != NULL) {
1438 if (!dfilter_compile(dfilter, &dfcode, &err_msg)) {
1439 cmdarg_err("%s", err_msg);
1445 cfile.dfcode = dfcode;
1447 if (print_packet_info) {
1448 /* If we're printing as text or PostScript, we have
1449 to create a print stream. */
1450 if (output_action == WRITE_TEXT) {
1451 switch (print_format) {
1454 print_stream = print_stream_text_stdio_new(stdout);
1458 print_stream = print_stream_ps_stdio_new(stdout);
1462 g_assert_not_reached();
1467 /* We have to dissect each packet if:
1469 we're printing information about each packet;
1471 we're using a read filter on the packets;
1473 we're using a display filter on the packets;
1475 we're using any taps that need dissection. */
1476 do_dissection = print_packet_info || rfcode || dfcode || tap_listeners_require_dissection();
1480 * We're reading a capture file.
1483 /* TODO: if tfshark is ever changed to give the user a choice of which
1484 open_routine reader to use, then the following needs to change. */
1485 if (cf_open(&cfile, cf_name, WTAP_TYPE_AUTO, FALSE, &err) != CF_OK) {
1490 /* Process the packets in the file */
1492 /* XXX - for now there is only 1 packet */
1493 err = load_cap_file(&cfile, 1, 0);
1495 CATCH(OutOfMemoryError) {
1499 "Sorry, but TFShark has to terminate now!\n"
1501 "Some infos / workarounds can be found at:\n"
1502 "https://wiki.wireshark.org/KnownBugs/OutOfMemory\n");
1508 /* We still dump out the results of taps, etc., as we might have
1509 read some packets; however, we exit with an error status. */
1516 if (cfile.frames != NULL) {
1517 free_frame_data_sequence(cfile.frames);
1518 cfile.frames = NULL;
1521 draw_tap_listeners(TRUE);
1522 funnel_dump_all_text_windows();
1523 epan_free(cfile.epan);
1526 output_fields_free(output_fields);
1527 output_fields = NULL;
1532 static const nstime_t *
1533 tfshark_get_frame_ts(void *data, guint32 frame_num)
1535 capture_file *cf = (capture_file *) data;
1537 if (ref && ref->num == frame_num)
1538 return &ref->abs_ts;
1540 if (prev_dis && prev_dis->num == frame_num)
1541 return &prev_dis->abs_ts;
1543 if (prev_cap && prev_cap->num == frame_num)
1544 return &prev_cap->abs_ts;
1547 frame_data *fd = frame_data_sequence_find(cf->frames, frame_num);
1549 return (fd) ? &fd->abs_ts : NULL;
1556 no_interface_name(void *data _U_, guint32 interface_id _U_)
1562 tfshark_epan_new(capture_file *cf)
1564 epan_t *epan = epan_new();
1567 epan->get_frame_ts = tfshark_get_frame_ts;
1568 epan->get_interface_name = no_interface_name;
1569 epan->get_user_comment = NULL;
1575 process_packet_first_pass(capture_file *cf, epan_dissect_t *edt,
1576 gint64 offset, struct wtap_pkthdr *whdr,
1583 /* The frame number of this packet is one more than the count of
1584 frames in this packet. */
1585 framenum = cf->count + 1;
1587 /* If we're not running a display filter and we're not printing any
1588 packet information, we don't need to do a dissection. This means
1589 that all packets can be marked as 'passed'. */
1592 frame_data_init(&fdlocal, framenum, whdr, offset, cum_bytes);
1594 /* If we're going to print packet information, or we're going to
1595 run a read filter, or display filter, or we're going to process taps, set up to
1596 do a dissection and do so. */
1598 /* If we're running a read filter, prime the epan_dissect_t with that
1601 epan_dissect_prime_dfilter(edt, cf->rfcode);
1603 frame_data_set_before_dissect(&fdlocal, &cf->elapsed_time,
1605 if (ref == &fdlocal) {
1606 ref_frame = fdlocal;
1610 epan_dissect_file_run(edt, whdr, file_tvbuff_new(&fdlocal, pd), &fdlocal, NULL);
1612 /* Run the read filter if we have one. */
1614 passed = dfilter_apply_edt(cf->rfcode, edt);
1618 frame_data_set_after_dissect(&fdlocal, &cum_bytes);
1619 prev_cap = prev_dis = frame_data_sequence_add(cf->frames, &fdlocal);
1621 /* If we're not doing dissection then there won't be any dependent frames.
1622 * More importantly, edt.pi.dependent_frames won't be initialized because
1623 * epan hasn't been initialized.
1626 g_slist_foreach(edt->pi.dependent_frames, find_and_mark_frame_depended_upon, cf->frames);
1631 /* if we don't add it to the frame_data_sequence, clean it up right now
1633 frame_data_destroy(&fdlocal);
1637 epan_dissect_reset(edt);
1643 process_packet_second_pass(capture_file *cf, epan_dissect_t *edt, frame_data *fdata,
1644 struct wtap_pkthdr *phdr, Buffer *buf,
1650 /* If we're not running a display filter and we're not printing any
1651 packet information, we don't need to do a dissection. This means
1652 that all packets can be marked as 'passed'. */
1655 /* If we're going to print packet information, or we're going to
1656 run a read filter, or we're going to process taps, set up to
1657 do a dissection and do so. */
1660 /* If we're running a display filter, prime the epan_dissect_t with that
1663 epan_dissect_prime_dfilter(edt, cf->dfcode);
1665 col_custom_prime_edt(edt, &cf->cinfo);
1667 /* We only need the columns if either
1668 1) some tap needs the columns
1670 2) we're printing packet info but we're *not* verbose; in verbose
1671 mode, we print the protocol tree, not the protocol summary.
1673 if ((tap_flags & TL_REQUIRES_COLUMNS) || (print_packet_info && print_summary))
1678 frame_data_set_before_dissect(fdata, &cf->elapsed_time,
1685 epan_dissect_file_run_with_taps(edt, phdr, file_tvbuff_new_buffer(fdata, buf), fdata, cinfo);
1687 /* Run the read/display filter if we have one. */
1689 passed = dfilter_apply_edt(cf->dfcode, edt);
1693 frame_data_set_after_dissect(fdata, &cum_bytes);
1694 /* Process this packet. */
1695 if (print_packet_info) {
1696 /* We're printing packet information; print the information for
1698 print_packet(cf, edt);
1700 /* The ANSI C standard does not appear to *require* that a line-buffered
1701 stream be flushed to the host environment whenever a newline is
1702 written, it just says that, on such a stream, characters "are
1703 intended to be transmitted to or from the host environment as a
1704 block when a new-line character is encountered".
1706 The Visual C++ 6.0 C implementation doesn't do what is intended;
1707 even if you set a stream to be line-buffered, it still doesn't
1708 flush the buffer at the end of every line.
1710 So, if the "-l" flag was specified, we flush the standard output
1711 at the end of a packet. This will do the right thing if we're
1712 printing packet summary lines, and, as we print the entire protocol
1713 tree for a single packet without waiting for anything to happen,
1714 it should be as good as line-buffered mode if we're printing
1715 protocol trees. (The whole reason for the "-l" flag in either
1716 tcpdump or TShark is to allow the output of a live capture to
1717 be piped to a program or script and to have that script see the
1718 information for the packet as soon as it's printed, rather than
1719 having to wait until a standard I/O buffer fills up. */
1723 if (ferror(stdout)) {
1724 show_print_file_io_error(errno);
1733 epan_dissect_reset(edt);
1735 return passed || fdata->flags.dependent_of_displayed;
1739 local_wtap_read(capture_file *cf, struct wtap_pkthdr* file_phdr _U_, int *err, gchar **err_info _U_, gint64 *data_offset _U_, guint8** data_buffer)
1741 /* int bytes_read; */
1742 gint64 packet_size = wtap_file_size(cf->wth, err);
1744 *data_buffer = (guint8*)g_malloc((gsize)packet_size);
1745 /* bytes_read =*/ file_read(*data_buffer, (unsigned int)packet_size, cf->wth->fh);
1747 #if 0 /* no more filetap */
1748 if (bytes_read < 0) {
1749 *err = file_error(cf->wth->fh, err_info);
1751 *err = FTAP_ERR_SHORT_READ;
1753 } else if (bytes_read == 0) {
1754 /* Done with file, no error */
1759 /* XXX - SET FRAME SIZE EQUAL TO TOTAL FILE SIZE */
1760 file_phdr->caplen = (guint32)packet_size;
1761 file_phdr->len = (guint32)packet_size;
1764 * Set the packet encapsulation to the file's encapsulation
1765 * value; if that's not WTAP_ENCAP_PER_PACKET, it's the
1766 * right answer (and means that the read routine for this
1767 * capture file type doesn't have to set it), and if it
1768 * *is* WTAP_ENCAP_PER_PACKET, the caller needs to set it
1771 wth->phdr.pkt_encap = wth->file_encap;
1773 if (!wth->subtype_read(wth, err, err_info, data_offset)) {
1775 * If we didn't get an error indication, we read
1776 * the last packet. See if there's any deferred
1777 * error, as might, for example, occur if we're
1778 * reading a compressed file, and we got an error
1779 * reading compressed data from the file, but
1780 * got enough compressed data to decompress the
1781 * last packet of the file.
1784 *err = file_error(wth->fh, err_info);
1785 return FALSE; /* failure */
1789 * It makes no sense for the captured data length to be bigger
1790 * than the actual data length.
1792 if (wth->phdr.caplen > wth->phdr.len)
1793 wth->phdr.caplen = wth->phdr.len;
1796 * Make sure that it's not WTAP_ENCAP_PER_PACKET, as that
1797 * probably means the file has that encapsulation type
1798 * but the read routine didn't set this packet's
1799 * encapsulation type.
1801 g_assert(wth->phdr.pkt_encap != WTAP_ENCAP_PER_PACKET);
1804 return TRUE; /* success */
1808 load_cap_file(capture_file *cf, int max_packet_count, gint64 max_byte_count)
1812 gchar *err_info = NULL;
1813 gint64 data_offset = 0;
1814 gboolean filtering_tap_listeners;
1817 epan_dissect_t *edt = NULL;
1818 struct wtap_pkthdr file_phdr;
1821 if (print_packet_info) {
1822 if (!write_preamble(cf)) {
1824 show_print_file_io_error(err);
1829 /* Do we have any tap listeners with filters? */
1830 filtering_tap_listeners = have_filtering_tap_listeners();
1832 /* Get the union of the flags for all tap listeners. */
1833 tap_flags = union_of_tap_listener_flags();
1835 wtap_phdr_init(&file_phdr);
1837 /* XXX - TEMPORARY HACK TO ELF DISSECTOR */
1838 file_phdr.pkt_encap = 1234;
1840 if (perform_two_pass_analysis) {
1843 /* Allocate a frame_data_sequence for all the frames. */
1844 cf->frames = new_frame_data_sequence();
1846 if (do_dissection) {
1847 gboolean create_proto_tree = FALSE;
1849 /* If we're going to be applying a filter, we'll need to
1850 create a protocol tree against which to apply the filter. */
1852 create_proto_tree = TRUE;
1854 /* We're not going to display the protocol tree on this pass,
1855 so it's not going to be "visible". */
1856 edt = epan_dissect_new(cf->epan, create_proto_tree, FALSE);
1858 while (local_wtap_read(cf, &file_phdr, &err, &err_info, &data_offset, &raw_data)) {
1859 if (process_packet_first_pass(cf, edt, data_offset, &file_phdr/*wtap_phdr(cf->wth)*/,
1860 wtap_buf_ptr(cf->wth))) {
1862 /* Stop reading if we have the maximum number of packets;
1863 * When the -c option has not been used, max_packet_count
1864 * starts at 0, which practically means, never stop reading.
1865 * (unless we roll over max_packet_count ?)
1867 if ( (--max_packet_count == 0) || (max_byte_count != 0 && data_offset >= max_byte_count)) {
1868 err = 0; /* This is not an error */
1875 epan_dissect_free(edt);
1880 /* Close the sequential I/O side, to free up memory it requires. */
1881 wtap_sequential_close(cf->wth);
1884 /* Allow the protocol dissectors to free up memory that they
1885 * don't need after the sequential run-through of the packets. */
1886 postseq_cleanup_all_protocols();
1890 ws_buffer_init(&buf, 1500);
1892 if (do_dissection) {
1893 gboolean create_proto_tree;
1895 if (cf->dfcode || print_details || filtering_tap_listeners ||
1896 (tap_flags & TL_REQUIRES_PROTO_TREE) || have_custom_cols(&cf->cinfo))
1897 create_proto_tree = TRUE;
1899 create_proto_tree = FALSE;
1901 /* The protocol tree will be "visible", i.e., printed, only if we're
1902 printing packet details, which is true if we're printing stuff
1903 ("print_packet_info" is true) and we're in verbose mode
1904 ("packet_details" is true). */
1905 edt = epan_dissect_new(cf->epan, create_proto_tree, print_packet_info && print_details);
1908 for (framenum = 1; err == 0 && framenum <= cf->count; framenum++) {
1909 fdata = frame_data_sequence_find(cf->frames, framenum);
1911 if (wtap_seek_read(cf->wth, fdata->file_off,
1912 &buf, fdata->cap_len, &err, &err_info)) {
1913 process_packet_second_pass(cf, edt, fdata, &cf->phdr, &buf, tap_flags);
1916 process_packet_second_pass(cf, edt, fdata, &cf->phdr, &buf, tap_flags);
1921 epan_dissect_free(edt);
1925 ws_buffer_free(&buf);
1930 if (do_dissection) {
1931 gboolean create_proto_tree;
1933 if (cf->rfcode || cf->dfcode || print_details || filtering_tap_listeners ||
1934 (tap_flags & TL_REQUIRES_PROTO_TREE) || have_custom_cols(&cf->cinfo))
1935 create_proto_tree = TRUE;
1937 create_proto_tree = FALSE;
1939 /* The protocol tree will be "visible", i.e., printed, only if we're
1940 printing packet details, which is true if we're printing stuff
1941 ("print_packet_info" is true) and we're in verbose mode
1942 ("packet_details" is true). */
1943 edt = epan_dissect_new(cf->epan, create_proto_tree, print_packet_info && print_details);
1946 while (local_wtap_read(cf, &file_phdr, &err, &err_info, &data_offset, &raw_data)) {
1950 process_packet(cf, edt, data_offset, &file_phdr/*wtap_phdr(cf->wth)*/,
1951 raw_data, tap_flags);
1953 /* Stop reading if we have the maximum number of packets;
1954 * When the -c option has not been used, max_packet_count
1955 * starts at 0, which practically means, never stop reading.
1956 * (unless we roll over max_packet_count ?)
1958 if ( (--max_packet_count == 0) || (max_byte_count != 0 && data_offset >= max_byte_count)) {
1959 err = 0; /* This is not an error */
1965 epan_dissect_free(edt);
1970 wtap_phdr_cleanup(&file_phdr);
1974 * Print a message noting that the read failed somewhere along the line.
1976 * If we're printing packet data, and the standard output and error are
1977 * going to the same place, flush the standard output, so everything
1978 * buffered up is written, and then print a newline to the standard error
1979 * before printing the error message, to separate it from the packet
1980 * data. (Alas, that only works on UN*X; st_dev is meaningless, and
1981 * the _fstat() documentation at Microsoft doesn't indicate whether
1982 * st_ino is even supported.)
1985 if (print_packet_info) {
1986 ws_statb64 stat_stdout, stat_stderr;
1988 if (ws_fstat64(1, &stat_stdout) == 0 && ws_fstat64(2, &stat_stderr) == 0) {
1989 if (stat_stdout.st_dev == stat_stderr.st_dev &&
1990 stat_stdout.st_ino == stat_stderr.st_ino) {
1992 fprintf(stderr, "\n");
2000 case FTAP_ERR_UNSUPPORTED:
2001 cmdarg_err("The file \"%s\" contains record data that TFShark doesn't support.\n(%s)",
2002 cf->filename, err_info);
2006 case FTAP_ERR_UNSUPPORTED_ENCAP:
2007 cmdarg_err("The file \"%s\" has a packet with a network type that TFShark doesn't support.\n(%s)",
2008 cf->filename, err_info);
2012 case FTAP_ERR_CANT_READ:
2013 cmdarg_err("An attempt to read from the file \"%s\" failed for some unknown reason.",
2017 case FTAP_ERR_SHORT_READ:
2018 cmdarg_err("The file \"%s\" appears to have been cut short in the middle of a packet.",
2022 case FTAP_ERR_BAD_FILE:
2023 cmdarg_err("The file \"%s\" appears to be damaged or corrupt.\n(%s)",
2024 cf->filename, err_info);
2028 case FTAP_ERR_DECOMPRESS:
2029 cmdarg_err("The compressed file \"%s\" appears to be damaged or corrupt.\n"
2030 "(%s)", cf->filename, err_info);
2034 cmdarg_err("An error occurred while reading the file \"%s\": %s.",
2035 cf->filename, ftap_strerror(err));
2040 if (print_packet_info) {
2041 if (!write_finale()) {
2043 show_print_file_io_error(err);
2049 wtap_close(cf->wth);
2056 process_packet(capture_file *cf, epan_dissect_t *edt, gint64 offset,
2057 struct wtap_pkthdr *whdr, const guchar *pd, guint tap_flags)
2063 /* Count this packet. */
2066 /* If we're not running a display filter and we're not printing any
2067 packet information, we don't need to do a dissection. This means
2068 that all packets can be marked as 'passed'. */
2071 frame_data_init(&fdata, cf->count, whdr, offset, cum_bytes);
2073 /* If we're going to print packet information, or we're going to
2074 run a read filter, or we're going to process taps, set up to
2075 do a dissection and do so. */
2077 /* If we're running a filter, prime the epan_dissect_t with that
2080 epan_dissect_prime_dfilter(edt, cf->dfcode);
2082 col_custom_prime_edt(edt, &cf->cinfo);
2084 /* We only need the columns if either
2085 1) some tap needs the columns
2087 2) we're printing packet info but we're *not* verbose; in verbose
2088 mode, we print the protocol tree, not the protocol summary.
2090 3) there is a column mapped as an individual field */
2091 if ((tap_flags & TL_REQUIRES_COLUMNS) || (print_packet_info && print_summary) || output_fields_has_cols(output_fields))
2096 frame_data_set_before_dissect(&fdata, &cf->elapsed_time,
2098 if (ref == &fdata) {
2103 epan_dissect_file_run_with_taps(edt, whdr, frame_tvbuff_new(&fdata, pd), &fdata, cinfo);
2105 /* Run the filter if we have it. */
2107 passed = dfilter_apply_edt(cf->dfcode, edt);
2111 frame_data_set_after_dissect(&fdata, &cum_bytes);
2113 /* Process this packet. */
2114 if (print_packet_info) {
2115 /* We're printing packet information; print the information for
2117 print_packet(cf, edt);
2119 /* The ANSI C standard does not appear to *require* that a line-buffered
2120 stream be flushed to the host environment whenever a newline is
2121 written, it just says that, on such a stream, characters "are
2122 intended to be transmitted to or from the host environment as a
2123 block when a new-line character is encountered".
2125 The Visual C++ 6.0 C implementation doesn't do what is intended;
2126 even if you set a stream to be line-buffered, it still doesn't
2127 flush the buffer at the end of every line.
2129 So, if the "-l" flag was specified, we flush the standard output
2130 at the end of a packet. This will do the right thing if we're
2131 printing packet summary lines, and, as we print the entire protocol
2132 tree for a single packet without waiting for anything to happen,
2133 it should be as good as line-buffered mode if we're printing
2134 protocol trees. (The whole reason for the "-l" flag in either
2135 tcpdump or TShark is to allow the output of a live capture to
2136 be piped to a program or script and to have that script see the
2137 information for the packet as soon as it's printed, rather than
2138 having to wait until a standard I/O buffer fills up. */
2142 if (ferror(stdout)) {
2143 show_print_file_io_error(errno);
2148 /* this must be set after print_packet() [bug #8160] */
2149 prev_dis_frame = fdata;
2150 prev_dis = &prev_dis_frame;
2153 prev_cap_frame = fdata;
2154 prev_cap = &prev_cap_frame;
2157 epan_dissect_reset(edt);
2158 frame_data_destroy(&fdata);
2164 write_preamble(capture_file *cf)
2166 switch (output_action) {
2169 return print_preamble(print_stream, cf->filename, get_ws_vcs_version_info());
2173 write_pdml_preamble(stdout, cf->filename);
2175 write_psml_preamble(&cf->cinfo, stdout);
2176 return !ferror(stdout);
2179 write_fields_preamble(output_fields, stdout);
2180 return !ferror(stdout);
2183 g_assert_not_reached();
2189 get_line_buf(size_t len)
2191 static char *line_bufp = NULL;
2192 static size_t line_buf_len = 256;
2193 size_t new_line_buf_len;
2195 for (new_line_buf_len = line_buf_len; len > new_line_buf_len;
2196 new_line_buf_len *= 2)
2198 if (line_bufp == NULL) {
2199 line_buf_len = new_line_buf_len;
2200 line_bufp = (char *)g_malloc(line_buf_len + 1);
2202 if (new_line_buf_len > line_buf_len) {
2203 line_buf_len = new_line_buf_len;
2204 line_bufp = (char *)g_realloc(line_bufp, line_buf_len + 1);
2211 put_string(char *dest, const char *str, size_t str_len)
2213 memcpy(dest, str, str_len);
2214 dest[str_len] = '\0';
2218 put_spaces_string(char *dest, const char *str, size_t str_len, size_t str_with_spaces)
2222 for (i = str_len; i < str_with_spaces; i++)
2225 put_string(dest, str, str_len);
2229 put_string_spaces(char *dest, const char *str, size_t str_len, size_t str_with_spaces)
2233 memcpy(dest, str, str_len);
2234 for (i = str_len; i < str_with_spaces; i++)
2237 dest[str_with_spaces] = '\0';
2241 print_columns(capture_file *cf)
2248 col_item_t* col_item;
2250 line_bufp = get_line_buf(256);
2253 for (i = 0; i < cf->cinfo.num_cols; i++) {
2254 col_item = &cf->cinfo.columns[i];
2255 /* Skip columns not marked as visible. */
2256 if (!get_column_visible(i))
2258 switch (col_item->col_fmt) {
2260 column_len = col_len = strlen(col_item->col_data);
2263 line_bufp = get_line_buf(buf_offset + column_len);
2264 put_spaces_string(line_bufp + buf_offset, col_item->col_data, col_len, column_len);
2270 case COL_ABS_YMD_TIME: /* XXX - wider */
2271 case COL_ABS_YDOY_TIME: /* XXX - wider */
2273 case COL_UTC_YMD_TIME: /* XXX - wider */
2274 case COL_UTC_YDOY_TIME: /* XXX - wider */
2275 column_len = col_len = strlen(col_item->col_data);
2276 if (column_len < 10)
2278 line_bufp = get_line_buf(buf_offset + column_len);
2279 put_spaces_string(line_bufp + buf_offset, col_item->col_data, col_len, column_len);
2285 case COL_DEF_DL_SRC:
2286 case COL_RES_DL_SRC:
2287 case COL_UNRES_DL_SRC:
2288 case COL_DEF_NET_SRC:
2289 case COL_RES_NET_SRC:
2290 case COL_UNRES_NET_SRC:
2291 column_len = col_len = strlen(col_item->col_data);
2292 if (column_len < 12)
2294 line_bufp = get_line_buf(buf_offset + column_len);
2295 put_spaces_string(line_bufp + buf_offset, col_item->col_data, col_len, column_len);
2301 case COL_DEF_DL_DST:
2302 case COL_RES_DL_DST:
2303 case COL_UNRES_DL_DST:
2304 case COL_DEF_NET_DST:
2305 case COL_RES_NET_DST:
2306 case COL_UNRES_NET_DST:
2307 column_len = col_len = strlen(col_item->col_data);
2308 if (column_len < 12)
2310 line_bufp = get_line_buf(buf_offset + column_len);
2311 put_string_spaces(line_bufp + buf_offset, col_item->col_data, col_len, column_len);
2315 column_len = strlen(col_item->col_data);
2316 line_bufp = get_line_buf(buf_offset + column_len);
2317 put_string(line_bufp + buf_offset, col_item->col_data, column_len);
2320 buf_offset += column_len;
2321 if (i != cf->cinfo.num_cols - 1) {
2323 * This isn't the last column, so we need to print a
2324 * separator between this column and the next.
2326 * If we printed a network source and are printing a
2327 * network destination of the same type next, separate
2328 * them with " -> "; if we printed a network destination
2329 * and are printing a network source of the same type
2330 * next, separate them with " <- "; otherwise separate them
2333 * We add enough space to the buffer for " <- " or " -> ",
2334 * even if we're only adding " ".
2336 line_bufp = get_line_buf(buf_offset + 4);
2337 switch (col_item->col_fmt) {
2342 switch (cf->cinfo.columns[i+1].col_fmt) {
2347 put_string(line_bufp + buf_offset, " -> ", 4);
2352 put_string(line_bufp + buf_offset, " ", 1);
2358 case COL_DEF_DL_SRC:
2359 case COL_RES_DL_SRC:
2360 case COL_UNRES_DL_SRC:
2361 switch (cf->cinfo.columns[i+1].col_fmt) {
2363 case COL_DEF_DL_DST:
2364 case COL_RES_DL_DST:
2365 case COL_UNRES_DL_DST:
2366 put_string(line_bufp + buf_offset, " -> ", 4);
2371 put_string(line_bufp + buf_offset, " ", 1);
2377 case COL_DEF_NET_SRC:
2378 case COL_RES_NET_SRC:
2379 case COL_UNRES_NET_SRC:
2380 switch (cf->cinfo.columns[i+1].col_fmt) {
2382 case COL_DEF_NET_DST:
2383 case COL_RES_NET_DST:
2384 case COL_UNRES_NET_DST:
2385 put_string(line_bufp + buf_offset, " -> ", 4);
2390 put_string(line_bufp + buf_offset, " ", 1);
2399 switch (cf->cinfo.columns[i+1].col_fmt) {
2404 put_string(line_bufp + buf_offset, " <- ", 4);
2409 put_string(line_bufp + buf_offset, " ", 1);
2415 case COL_DEF_DL_DST:
2416 case COL_RES_DL_DST:
2417 case COL_UNRES_DL_DST:
2418 switch (cf->cinfo.columns[i+1].col_fmt) {
2420 case COL_DEF_DL_SRC:
2421 case COL_RES_DL_SRC:
2422 case COL_UNRES_DL_SRC:
2423 put_string(line_bufp + buf_offset, " <- ", 4);
2428 put_string(line_bufp + buf_offset, " ", 1);
2434 case COL_DEF_NET_DST:
2435 case COL_RES_NET_DST:
2436 case COL_UNRES_NET_DST:
2437 switch (cf->cinfo.columns[i+1].col_fmt) {
2439 case COL_DEF_NET_SRC:
2440 case COL_RES_NET_SRC:
2441 case COL_UNRES_NET_SRC:
2442 put_string(line_bufp + buf_offset, " <- ", 4);
2447 put_string(line_bufp + buf_offset, " ", 1);
2454 put_string(line_bufp + buf_offset, " ", 1);
2460 return print_line(print_stream, 0, line_bufp);
2464 print_packet(capture_file *cf, epan_dissect_t *edt)
2466 print_args_t print_args;
2468 if (print_summary || output_fields_has_cols(output_fields)) {
2469 /* Just fill in the columns. */
2470 epan_dissect_fill_in_columns(edt, FALSE, TRUE);
2472 if (print_summary) {
2473 /* Now print them. */
2474 switch (output_action) {
2477 if (!print_columns(cf))
2482 write_psml_columns(edt, stdout);
2483 return !ferror(stdout);
2484 case WRITE_FIELDS: /*No non-verbose "fields" format */
2485 g_assert_not_reached();
2490 if (print_details) {
2491 /* Print the information in the protocol tree. */
2492 switch (output_action) {
2495 /* Only initialize the fields that are actually used in proto_tree_print.
2496 * This is particularly important for .range, as that's heap memory which
2497 * we would otherwise have to g_free().
2498 print_args.to_file = TRUE;
2499 print_args.format = print_format;
2500 print_args.print_summary = print_summary;
2501 print_args.print_formfeed = FALSE;
2502 packet_range_init(&print_args.range, &cfile);
2504 print_args.print_hex = print_hex;
2505 print_args.print_dissections = print_details ? print_dissections_expanded : print_dissections_none;
2507 if (!proto_tree_print(&print_args, edt, output_only_tables, print_stream))
2510 if (!print_line(print_stream, 0, separator))
2516 write_pdml_proto_tree(edt, stdout);
2518 return !ferror(stdout);
2520 write_fields_proto_tree(output_fields, edt, &cf->cinfo, stdout);
2522 return !ferror(stdout);
2526 if (print_summary || print_details) {
2527 if (!print_line(print_stream, 0, ""))
2530 if (!print_hex_data(print_stream, edt))
2532 if (!print_line(print_stream, 0, separator))
2541 switch (output_action) {
2544 return print_finale(print_stream);
2548 write_pdml_finale(stdout);
2550 write_psml_finale(stdout);
2551 return !ferror(stdout);
2554 write_fields_finale(output_fields, stdout);
2555 return !ferror(stdout);
2558 g_assert_not_reached();
2564 cf_open(capture_file *cf, const char *fname, unsigned int type, gboolean is_tempfile, int *err)
2567 char err_msg[2048+1];
2569 /* The open isn't implemented yet. Fill in the information for this file. */
2571 /* Create new epan session for dissection. */
2572 epan_free(cf->epan);
2573 cf->epan = tfshark_epan_new(cf);
2575 cf->wth = NULL; /**** XXX - DOESN'T WORK RIGHT NOW!!!! */
2576 cf->f_datalen = 0; /* not used, but set it anyway */
2578 /* Set the file name because we need it to set the follow stream filter.
2579 XXX - is that still true? We need it for other reasons, though,
2581 cf->filename = g_strdup(fname);
2583 /* Indicate whether it's a permanent or temporary file. */
2584 cf->is_tempfile = is_tempfile;
2586 /* No user changes yet. */
2587 cf->unsaved_changes = FALSE;
2589 cf->cd_t = 0; /**** XXX - DOESN'T WORK RIGHT NOW!!!! */
2590 cf->open_type = type;
2592 cf->drops_known = FALSE;
2594 cf->snap = 0; /**** XXX - DOESN'T WORK RIGHT NOW!!!! */
2595 if (cf->snap == 0) {
2596 /* Snapshot length not known. */
2597 cf->has_snap = FALSE;
2600 cf->has_snap = TRUE;
2601 nstime_set_zero(&cf->elapsed_time);
2606 cf->state = FILE_READ_IN_PROGRESS;
2611 g_snprintf(err_msg, sizeof err_msg,
2612 cf_open_error_message(*err, err_info, FALSE, cf->cd_t), fname);
2613 cmdarg_err("%s", err_msg);
2618 show_print_file_io_error(int err)
2623 cmdarg_err("Not all the packets could be printed because there is "
2624 "no space left on the file system.");
2629 cmdarg_err("Not all the packets could be printed because you are "
2630 "too close to, or over your disk quota.");
2635 cmdarg_err("An error occurred while printing packets: %s.",
2642 cf_open_error_message(int err, gchar *err_info _U_, gboolean for_writing,
2646 /* static char errmsg_errno[1024+1]; */
2650 /* Wiretap error. */
2653 case FTAP_ERR_NOT_REGULAR_FILE:
2654 errmsg = "The file \"%s\" is a \"special file\" or socket or other non-regular file.";
2657 case FTAP_ERR_RANDOM_OPEN_PIPE:
2658 /* Seen only when opening a capture file for reading. */
2659 errmsg = "The file \"%s\" is a pipe or FIFO; TFShark can't read pipe or FIFO files in two-pass mode.";
2662 case FTAP_ERR_FILE_UNKNOWN_FORMAT:
2663 /* Seen only when opening a capture file for reading. */
2664 errmsg = "The file \"%s\" isn't a capture file in a format TFShark understands.";
2667 case FTAP_ERR_UNSUPPORTED:
2668 /* Seen only when opening a capture file for reading. */
2669 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2670 "The file \"%%s\" isn't a capture file in a format TFShark understands.\n"
2673 errmsg = errmsg_errno;
2676 case FTAP_ERR_CANT_WRITE_TO_PIPE:
2677 /* Seen only when opening a capture file for writing. */
2678 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2679 "The file \"%%s\" is a pipe, and \"%s\" capture files can't be "
2680 "written to a pipe.", ftap_file_type_subtype_short_string(file_type));
2681 errmsg = errmsg_errno;
2684 case FTAP_ERR_UNSUPPORTED_FILE_TYPE:
2685 /* Seen only when opening a capture file for writing. */
2686 errmsg = "TFShark doesn't support writing capture files in that format.";
2689 case FTAP_ERR_UNSUPPORTED_ENCAP:
2691 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2692 "TFShark can't save this capture as a \"%s\" file.",
2693 ftap_file_type_subtype_short_string(file_type));
2695 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2696 "The file \"%%s\" is a capture for a network type that TFShark doesn't support.\n"
2700 errmsg = errmsg_errno;
2703 case FTAP_ERR_ENCAP_PER_RECORD_UNSUPPORTED:
2705 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2706 "TFShark can't save this capture as a \"%s\" file.",
2707 ftap_file_type_subtype_short_string(file_type));
2708 errmsg = errmsg_errno;
2710 errmsg = "The file \"%s\" is a capture for a network type that TFShark doesn't support.";
2713 case FTAP_ERR_BAD_FILE:
2714 /* Seen only when opening a capture file for reading. */
2715 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2716 "The file \"%%s\" appears to be damaged or corrupt.\n"
2719 errmsg = errmsg_errno;
2722 case FTAP_ERR_CANT_OPEN:
2724 errmsg = "The file \"%s\" could not be created for some unknown reason.";
2726 errmsg = "The file \"%s\" could not be opened for some unknown reason.";
2729 case FTAP_ERR_SHORT_READ:
2730 errmsg = "The file \"%s\" appears to have been cut short"
2731 " in the middle of a packet or other data.";
2734 case FTAP_ERR_SHORT_WRITE:
2735 errmsg = "A full header couldn't be written to the file \"%s\".";
2738 case FTAP_ERR_COMPRESSION_NOT_SUPPORTED:
2739 errmsg = "This file type cannot be written as a compressed file.";
2742 case FTAP_ERR_DECOMPRESS:
2743 /* Seen only when opening a capture file for reading. */
2744 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2745 "The compressed file \"%%s\" appears to be damaged or corrupt.\n"
2748 errmsg = errmsg_errno;
2752 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2753 "The file \"%%s\" could not be %s: %s.",
2754 for_writing ? "created" : "opened",
2755 ftap_strerror(err));
2756 errmsg = errmsg_errno;
2761 errmsg = file_open_error_message(err, for_writing);
2766 * Open/create errors are reported with an console message in TFShark.
2769 open_failure_message(const char *filename, int err, gboolean for_writing)
2771 fprintf(stderr, "tfshark: ");
2772 fprintf(stderr, file_open_error_message(err, for_writing), filename);
2773 fprintf(stderr, "\n");
2778 * General errors are reported with an console message in TFShark.
2781 failure_message(const char *msg_format, va_list ap)
2783 fprintf(stderr, "tfshark: ");
2784 vfprintf(stderr, msg_format, ap);
2785 fprintf(stderr, "\n");
2789 * Read errors are reported with an console message in TFShark.
2792 read_failure_message(const char *filename, int err)
2794 cmdarg_err("An error occurred while reading from the file \"%s\": %s.",
2795 filename, g_strerror(err));
2799 * Write errors are reported with an console message in TFShark.
2802 write_failure_message(const char *filename, int err)
2804 cmdarg_err("An error occurred while writing to the file \"%s\": %s.",
2805 filename, g_strerror(err));
2809 * Report additional information for an error in command-line arguments.
2812 failure_message_cont(const char *msg_format, va_list ap)
2814 vfprintf(stderr, msg_format, ap);
2815 fprintf(stderr, "\n");
2819 * Editor modelines - https://www.wireshark.org/tools/modelines.html
2824 * indent-tabs-mode: nil
2827 * vi: set shiftwidth=2 tabstop=8 expandtab:
2828 * :indentSize=2:tabSize=8:noTabs=true: