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.
49 #ifdef HAVE_SYS_STAT_H
50 # include <sys/stat.h>
54 #include "wsutil/wsgetopt.h"
59 #include <epan/exceptions.h>
60 #include <epan/epan-int.h>
61 #include <epan/epan.h>
63 #include <wsutil/clopts_common.h>
64 #include <wsutil/cmdarg_err.h>
65 #include <wsutil/crash_info.h>
66 #include <wsutil/privileges.h>
67 #include <wsutil/file_util.h>
68 #include <wsutil/filesystem.h>
69 #include <wsutil/report_err.h>
70 #include <wsutil/copyright_info.h>
71 #include <wsutil/ws_version_info.h>
74 #include <epan/timestamp.h>
75 #include <epan/packet.h>
77 #include <epan/wslua/init_wslua.h>
80 #include "frame_tvbuff.h"
81 #include <epan/disabled_protos.h>
82 #include <epan/prefs.h>
83 #include <epan/column.h>
84 #include <epan/print.h>
85 #include <epan/addr_resolv.h>
87 #include "version_info.h"
89 #include <epan/epan_dissect.h>
91 #include <epan/stat_cmd_args.h>
92 #include <epan/timestamp.h>
93 #include <epan/ex-opt.h>
94 #include <filetap/ftap.h>
95 #include <wiretap/wtap-int.h>
96 #include <wiretap/file_wrappers.h>
99 #include <wsutil/unicode-utils.h>
103 #include <epan/funnel.h>
106 #include <wsutil/plugins.h>
110 * This is the template for the decode as option; it is shared between the
111 * various functions that output the usage for this parameter.
113 static const gchar decode_as_arg_template[] = "<layer_type>==<selector>,<decode_as_protocol>";
115 static guint32 cum_bytes;
116 static const frame_data *ref;
117 static frame_data ref_frame;
118 static frame_data *prev_dis;
119 static frame_data prev_dis_frame;
120 static frame_data *prev_cap;
121 static frame_data prev_cap_frame;
123 static const char* prev_display_dissector_name = NULL;
125 static gboolean perform_two_pass_analysis;
128 * The way the packet decode is to be written.
131 WRITE_TEXT, /* summary or detail text */
132 WRITE_XML, /* PDML or PSML */
133 WRITE_FIELDS /* User defined list of fields */
134 /* Add CSV and the like here */
137 static output_action_e output_action;
138 static gboolean do_dissection; /* TRUE if we have to dissect each packet */
139 static gboolean print_packet_info; /* TRUE if we're to print packet information */
140 static gint print_summary = -1; /* TRUE if we're to print packet summary information */
141 static gboolean print_details; /* TRUE if we're to print packet details information */
142 static gboolean print_hex; /* TRUE if we're to print hex/ascci information */
143 static gboolean line_buffered;
144 static gboolean really_quiet = FALSE;
146 static print_format_e print_format = PR_FMT_TEXT;
147 static print_stream_t *print_stream;
149 static output_fields_t* output_fields = NULL;
151 /* The line separator used between packets, changeable via the -S option */
152 static const char *separator = "";
154 static int load_cap_file(capture_file *, int, gint64);
155 static gboolean process_packet(capture_file *cf, epan_dissect_t *edt, gint64 offset,
156 struct wtap_pkthdr *whdr, const guchar *pd, guint tap_flags);
157 static void show_print_file_io_error(int err);
158 static gboolean write_preamble(capture_file *cf);
159 static gboolean print_packet(capture_file *cf, epan_dissect_t *edt);
160 static gboolean write_finale(void);
161 static const char *cf_open_error_message(int err, gchar *err_info,
162 gboolean for_writing, int file_type);
164 static void open_failure_message(const char *filename, int err,
165 gboolean for_writing);
166 static void failure_message(const char *msg_format, va_list ap);
167 static void read_failure_message(const char *filename, int err);
168 static void write_failure_message(const char *filename, int err);
174 const char *sstr; /* The short string */
175 const char *lstr; /* The long string */
179 string_compare(gconstpointer a, gconstpointer b)
181 return strcmp(((const struct string_elem *)a)->sstr,
182 ((const struct string_elem *)b)->sstr);
186 string_elem_print(gpointer data, gpointer not_used _U_)
188 fprintf(stderr, " %s - %s\n",
189 ((struct string_elem *)data)->sstr,
190 ((struct string_elem *)data)->lstr);
195 print_usage(gboolean print_ver)
203 "Dump and analyze network traffic.\n"
204 "See http://www.wireshark.org for more information.\n"
207 get_ws_vcs_version_info(), get_copyright_info());
211 fprintf(output, "\n");
212 fprintf(output, "Usage: tfshark [options] ...\n");
213 fprintf(output, "\n");
215 /*fprintf(output, "\n");*/
216 fprintf(output, "Input file:\n");
217 fprintf(output, " -r <infile> set the filename to read from (no pipes or stdin!)\n");
219 fprintf(output, "\n");
220 fprintf(output, "Processing:\n");
221 fprintf(output, " -2 perform a two-pass analysis\n");
222 fprintf(output, " -R <read filter> packet Read filter in Wireshark display filter syntax\n");
223 fprintf(output, " -Y <display filter> packet displaY filter in Wireshark display filter\n");
224 fprintf(output, " syntax\n");
225 fprintf(output, " -d %s ...\n", decode_as_arg_template);
226 fprintf(output, " \"Decode As\", see the man page for details\n");
227 fprintf(output, " Example: tcp.port==8888,http\n");
229 /*fprintf(output, "\n");*/
230 fprintf(output, "Output:\n");
231 fprintf(output, " -C <config profile> start with specified configuration profile\n");
232 fprintf(output, " -V add output of packet tree (Packet Details)\n");
233 fprintf(output, " -O <protocols> Only show packet details of these protocols, comma\n");
234 fprintf(output, " separated\n");
235 fprintf(output, " -S <separator> the line separator to print between packets\n");
236 fprintf(output, " -x add output of hex and ASCII dump (Packet Bytes)\n");
237 fprintf(output, " -T pdml|ps|psml|text|fields\n");
238 fprintf(output, " format of text output (def: text)\n");
239 fprintf(output, " -e <field> field to print if -Tfields selected (e.g. tcp.port,\n");
240 fprintf(output, " _ws.col.Info)\n");
241 fprintf(output, " this option can be repeated to print multiple fields\n");
242 fprintf(output, " -E<fieldsoption>=<value> set options for output when -Tfields selected:\n");
243 fprintf(output, " header=y|n switch headers on and off\n");
244 fprintf(output, " separator=/t|/s|<char> select tab, space, printable character as separator\n");
245 fprintf(output, " occurrence=f|l|a print first, last or all occurrences of each field\n");
246 fprintf(output, " aggregator=,|/s|<char> select comma, space, printable character as\n");
247 fprintf(output, " aggregator\n");
248 fprintf(output, " quote=d|s|n select double, single, no quotes for values\n");
249 fprintf(output, " -t a|ad|d|dd|e|r|u|ud output format of time stamps (def: r: rel. to first)\n");
250 fprintf(output, " -u s|hms output format of seconds (def: s: seconds)\n");
251 fprintf(output, " -l flush standard output after each packet\n");
252 fprintf(output, " -q be more quiet on stdout (e.g. when using statistics)\n");
253 fprintf(output, " -Q only log true errors to stderr (quieter than -q)\n");
254 fprintf(output, " -X <key>:<value> eXtension options, see the man page for details\n");
255 fprintf(output, " -z <statistics> various statistics, see the man page for details\n");
257 fprintf(output, "\n");
258 fprintf(output, "Miscellaneous:\n");
259 fprintf(output, " -h display this help and exit\n");
260 fprintf(output, " -v display version info and exit\n");
261 fprintf(output, " -o <name>:<value> ... override preference setting\n");
262 fprintf(output, " -K <keytab> keytab file to use for kerberos decryption\n");
263 fprintf(output, " -G [report] dump one of several available reports and exit\n");
264 fprintf(output, " default report=\"fields\"\n");
265 fprintf(output, " use \"-G ?\" for more help\n");
269 glossary_option_help(void)
275 fprintf(output, "TFShark %s\n", get_ws_vcs_version_info());
277 fprintf(output, "\n");
278 fprintf(output, "Usage: tfshark -G [report]\n");
279 fprintf(output, "\n");
280 fprintf(output, "Glossary table reports:\n");
281 fprintf(output, " -G column-formats dump column format codes and exit\n");
282 fprintf(output, " -G decodes dump \"layer type\"/\"decode as\" associations and exit\n");
283 fprintf(output, " -G fields dump fields glossary and exit\n");
284 fprintf(output, " -G ftypes dump field type basic and descriptive names\n");
285 fprintf(output, " -G heuristic-decodes dump heuristic dissector tables\n");
286 fprintf(output, " -G plugins dump installed plugins and exit\n");
287 fprintf(output, " -G protocols dump protocols in registration database and exit\n");
288 fprintf(output, " -G values dump value, range, true/false strings and exit\n");
289 fprintf(output, "\n");
290 fprintf(output, "Preference reports:\n");
291 fprintf(output, " -G currentprefs dump current preferences and exit\n");
292 fprintf(output, " -G defaultprefs dump default preferences and exit\n");
293 fprintf(output, "\n");
297 * For a dissector table, print on the stream described by output,
298 * its short name (which is what's used in the "-d" option) and its
302 display_dissector_table_names(const char *table_name, const char *ui_name,
305 if ((prev_display_dissector_name == NULL) ||
306 (strcmp(prev_display_dissector_name, table_name) != 0)) {
307 fprintf((FILE *)output, "\t%s (%s)\n", table_name, ui_name);
308 prev_display_dissector_name = table_name;
313 * For a dissector handle, print on the stream described by output,
314 * the filter name (which is what's used in the "-d" option) and the full
315 * name for the protocol that corresponds to this handle.
318 display_dissector_names(const gchar *table _U_, gpointer handle, gpointer output)
321 const gchar *proto_filter_name;
322 const gchar *proto_ui_name;
324 proto_id = dissector_handle_get_protocol_index((dissector_handle_t)handle);
326 if (proto_id != -1) {
327 proto_filter_name = proto_get_protocol_filter_name(proto_id);
328 proto_ui_name = proto_get_protocol_name(proto_id);
329 g_assert(proto_filter_name != NULL);
330 g_assert(proto_ui_name != NULL);
332 if ((prev_display_dissector_name == NULL) ||
333 (strcmp(prev_display_dissector_name, proto_filter_name) != 0)) {
334 fprintf((FILE *)output, "\t%s (%s)\n",
337 prev_display_dissector_name = proto_filter_name;
343 * The protocol_name_search structure is used by find_protocol_name_func()
344 * to pass parameters and store results
346 struct protocol_name_search{
347 gchar *searched_name; /* Protocol filter name we are looking for */
348 dissector_handle_t matched_handle; /* Handle for a dissector whose protocol has the specified filter name */
349 guint nb_match; /* How many dissectors matched searched_name */
351 typedef struct protocol_name_search *protocol_name_search_t;
354 * This function parses all dissectors associated with a table to find the
355 * one whose protocol has the specified filter name. It is called
356 * as a reference function in a call to dissector_table_foreach_handle.
357 * The name we are looking for, as well as the results, are stored in the
358 * protocol_name_search struct pointed to by user_data.
359 * If called using dissector_table_foreach_handle, we actually parse the
360 * whole list of dissectors.
363 find_protocol_name_func(const gchar *table _U_, gpointer handle, gpointer user_data)
367 const gchar *protocol_filter_name;
368 protocol_name_search_t search_info;
372 search_info = (protocol_name_search_t)user_data;
374 proto_id = dissector_handle_get_protocol_index((dissector_handle_t)handle);
375 if (proto_id != -1) {
376 protocol_filter_name = proto_get_protocol_filter_name(proto_id);
377 g_assert(protocol_filter_name != NULL);
378 if (strcmp(protocol_filter_name, search_info->searched_name) == 0) {
380 if (search_info->nb_match == 0) {
381 /* Record this handle only if this is the first match */
382 search_info->matched_handle = (dissector_handle_t)handle; /* Record the handle for this matching dissector */
384 search_info->nb_match++;
390 * Allow dissector key names to be sorted alphabetically
394 compare_dissector_key_name(gconstpointer dissector_a, gconstpointer dissector_b)
396 return strcmp((const char*)dissector_a, (const char*)dissector_b);
400 * Print all layer type names supported.
401 * We send the output to the stream described by the handle output.
405 fprint_all_layer_types(FILE *output)
408 prev_display_dissector_name = NULL;
409 dissector_all_tables_foreach_table(display_dissector_table_names, (gpointer)output, (GCompareFunc)compare_dissector_key_name);
413 * Print all protocol names supported for a specific layer type.
414 * table_name contains the layer type name in which the search is performed.
415 * We send the output to the stream described by the handle output.
419 fprint_all_protocols_for_layer_types(FILE *output, gchar *table_name)
422 prev_display_dissector_name = NULL;
423 dissector_table_foreach_handle(table_name,
424 display_dissector_names,
429 * The function below parses the command-line parameters for the decode as
430 * feature (a string pointer by cl_param).
431 * It checks the format of the command-line, searches for a matching table
432 * and dissector. If a table/dissector match is not found, we display a
433 * summary of the available tables/dissectors (on stderr) and return FALSE.
434 * If everything is fine, we get the "Decode as" preference activated,
435 * then we return TRUE.
438 add_decode_as(const gchar *cl_param)
441 guint32 selector, selector2;
442 gchar *decoded_param;
443 gchar *remaining_param;
445 gchar *dissector_str;
446 dissector_handle_t dissector_matching;
447 dissector_table_t table_matching;
448 ftenum_t dissector_table_selector_type;
449 struct protocol_name_search user_protocol_name;
453 /* The following code will allocate and copy the command-line options in a string pointed by decoded_param */
456 decoded_param = g_strdup(cl_param);
457 g_assert(decoded_param);
460 /* The lines below will parse this string (modifying it) to extract all
461 necessary information. Note that decoded_param is still needed since
462 strings are not copied - we just save pointers. */
464 /* This section extracts a layer type (table_name) from decoded_param */
465 table_name = decoded_param; /* Layer type string starts from beginning */
467 remaining_param = strchr(table_name, '=');
468 if (remaining_param == NULL) {
469 cmdarg_err("Parameter \"%s\" doesn't follow the template \"%s\"", cl_param, decode_as_arg_template);
470 /* If the argument does not follow the template, carry on anyway to check
471 if the table name is at least correct. If remaining_param is NULL,
472 we'll exit anyway further down */
475 *remaining_param = '\0'; /* Terminate the layer type string (table_name) where '=' was detected */
478 /* Remove leading and trailing spaces from the table name */
479 while ( table_name[0] == ' ' )
481 while ( table_name[strlen(table_name) - 1] == ' ' )
482 table_name[strlen(table_name) - 1] = '\0'; /* Note: if empty string, while loop will eventually exit */
484 /* The following part searches a table matching with the layer type specified */
485 table_matching = NULL;
487 /* Look for the requested table */
488 if ( !(*(table_name)) ) { /* Is the table name empty, if so, don't even search for anything, display a message */
489 cmdarg_err("No layer type specified"); /* Note, we don't exit here, but table_matching will remain NULL, so we exit below */
492 table_matching = find_dissector_table(table_name);
493 if (!table_matching) {
494 cmdarg_err("Unknown layer type -- %s", table_name); /* Note, we don't exit here, but table_matching will remain NULL, so we exit below */
498 if (!table_matching) {
499 /* Display a list of supported layer types to help the user, if the
500 specified layer type was not found */
501 cmdarg_err("Valid layer types are:");
502 fprint_all_layer_types(stderr);
504 if (remaining_param == NULL || !table_matching) {
505 /* Exit if the layer type was not found, or if no '=' separator was found
507 g_free(decoded_param);
511 if (*(remaining_param + 1) != '=') { /* Check for "==" and not only '=' */
512 cmdarg_err("WARNING: -d requires \"==\" instead of \"=\". Option will be treated as \"%s==%s\"", table_name, remaining_param + 1);
515 remaining_param++; /* Move to the second '=' */
516 *remaining_param = '\0'; /* Remove the second '=' */
518 remaining_param++; /* Position after the layer type string */
520 /* This section extracts a selector value (selector_str) from decoded_param */
522 selector_str = remaining_param; /* Next part starts with the selector number */
524 remaining_param = strchr(selector_str, ',');
525 if (remaining_param == NULL) {
526 cmdarg_err("Parameter \"%s\" doesn't follow the template \"%s\"", cl_param, decode_as_arg_template);
527 /* If the argument does not follow the template, carry on anyway to check
528 if the selector value is at least correct. If remaining_param is NULL,
529 we'll exit anyway further down */
532 *remaining_param = '\0'; /* Terminate the selector number string (selector_str) where ',' was detected */
535 dissector_table_selector_type = get_dissector_table_selector_type(table_name);
537 switch (dissector_table_selector_type) {
543 /* The selector for this table is an unsigned number. Parse it as such.
544 There's no need to remove leading and trailing spaces from the
545 selector number string, because sscanf will do that for us. */
546 switch (sscanf(selector_str, "%u%c%u", &selector, &op, &selector2)) {
551 if (op != ':' && op != '-') {
552 cmdarg_err("Invalid selector numeric range \"%s\"", selector_str);
553 g_free(decoded_param);
557 if ((selector2 == 0) || ((guint64)selector + selector2 - 1) > G_MAXUINT32) {
558 cmdarg_err("Invalid selector numeric range \"%s\"", selector_str);
559 g_free(decoded_param);
563 else if (selector2 < selector) {
564 /* We could swap them for the user, but maybe it's better to call
565 * this out as an error in case it's not what was intended? */
566 cmdarg_err("Invalid selector numeric range \"%s\"", selector_str);
567 g_free(decoded_param);
572 cmdarg_err("Invalid selector number \"%s\"", selector_str);
573 g_free(decoded_param);
582 /* The selector for this table is a string. */
586 /* There are currently no dissector tables with any types other
587 than the ones listed above. */
588 g_assert_not_reached();
591 if (remaining_param == NULL) {
592 /* Exit if no ',' separator was found (see above) */
593 cmdarg_err("Valid protocols for layer type \"%s\" are:", table_name);
594 fprint_all_protocols_for_layer_types(stderr, table_name);
595 g_free(decoded_param);
599 remaining_param++; /* Position after the selector number string */
601 /* This section extracts a protocol filter name (dissector_str) from decoded_param */
603 dissector_str = remaining_param; /* All the rest of the string is the dissector (decode as protocol) name */
605 /* Remove leading and trailing spaces from the dissector name */
606 while ( dissector_str[0] == ' ' )
608 while ( dissector_str[strlen(dissector_str) - 1] == ' ' )
609 dissector_str[strlen(dissector_str) - 1] = '\0'; /* Note: if empty string, while loop will eventually exit */
611 dissector_matching = NULL;
613 /* We now have a pointer to the handle for the requested table inside the variable table_matching */
614 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 */
615 cmdarg_err("No protocol name specified"); /* Note, we don't exit here, but dissector_matching will remain NULL, so we exit below */
618 user_protocol_name.nb_match = 0;
619 user_protocol_name.searched_name = dissector_str;
620 user_protocol_name.matched_handle = NULL;
622 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 */
624 if (user_protocol_name.nb_match != 0) {
625 dissector_matching = user_protocol_name.matched_handle;
626 if (user_protocol_name.nb_match > 1) {
627 cmdarg_err("WARNING: Protocol \"%s\" matched %u dissectors, first one will be used", dissector_str, user_protocol_name.nb_match);
631 /* OK, check whether the problem is that there isn't any such
632 protocol, or that there is but it's not specified as a protocol
633 that's valid for that dissector table.
634 Note, we don't exit here, but dissector_matching will remain NULL,
636 if (proto_get_id_by_filter_name(dissector_str) == -1) {
637 /* No such protocol */
638 cmdarg_err("Unknown protocol -- \"%s\"", dissector_str);
640 cmdarg_err("Protocol \"%s\" isn't valid for layer type \"%s\"",
641 dissector_str, table_name);
646 if (!dissector_matching) {
647 cmdarg_err("Valid protocols for layer type \"%s\" are:", table_name);
648 fprint_all_protocols_for_layer_types(stderr, table_name);
649 g_free(decoded_param);
653 /* This is the end of the code that parses the command-line options.
654 All information is now stored in the variables:
658 The above variables that are strings are still pointing to areas within
659 decoded_parm. decoded_parm thus still needs to be kept allocated in
660 until we stop needing these variables
661 decoded_param will be deallocated at each exit point of this function */
664 /* We now have a pointer to the handle for the requested dissector
665 (requested protocol) inside the variable dissector_matching */
666 switch (dissector_table_selector_type) {
672 /* The selector for this table is an unsigned number. */
674 dissector_change_uint(table_name, selector, dissector_matching);
675 } else if (op == ':') {
676 for (i = selector; i < (guint64)selector + selector2; i++) {
677 dissector_change_uint(table_name, (guint32)i, dissector_matching);
679 } else { /* op == '-' */
680 for (i = selector; i <= selector2; i++) {
681 dissector_change_uint(table_name, (guint32)i, dissector_matching);
690 /* The selector for this table is a string. */
691 dissector_change_string(table_name, selector_str, dissector_matching);
695 /* There are currently no dissector tables with any types other
696 than the ones listed above. */
697 g_assert_not_reached();
699 g_free(decoded_param); /* "Decode As" rule has been successfully added */
704 tfshark_log_handler (const gchar *log_domain, GLogLevelFlags log_level,
705 const gchar *message, gpointer user_data)
707 /* ignore log message, if log_level isn't interesting based
708 upon the console log preferences.
709 If the preferences haven't been loaded loaded yet, display the
712 The default console_log_level preference value is such that only
713 ERROR, CRITICAL and WARNING level messages are processed;
714 MESSAGE, INFO and DEBUG level messages are ignored.
716 XXX: Aug 07, 2009: Prior tshark g_log code was hardwired to process only
717 ERROR and CRITICAL level messages so the current code is a behavioral
718 change. The current behavior is the same as in Wireshark.
720 if ((log_level & G_LOG_LEVEL_MASK & prefs.console_log_level) == 0 &&
721 prefs.console_log_level != 0) {
725 g_log_default_handler(log_domain, log_level, message, user_data);
730 print_current_user(void) {
731 gchar *cur_user, *cur_group;
733 if (started_with_special_privs()) {
734 cur_user = get_cur_username();
735 cur_group = get_cur_groupname();
736 fprintf(stderr, "Running as user \"%s\" and group \"%s\".",
737 cur_user, cur_group);
740 if (running_with_special_privs()) {
741 fprintf(stderr, " This could be dangerous.");
743 fprintf(stderr, "\n");
748 show_version(GString *comp_info_str, GString *runtime_info_str)
750 printf("TFShark %s\n"
757 get_ws_vcs_version_info(), get_copyright_info(), comp_info_str->str,
758 runtime_info_str->str);
762 main(int argc, char *argv[])
764 GString *comp_info_str;
765 GString *runtime_info_str;
766 char *init_progfile_dir_error;
768 gboolean arg_error = FALSE;
770 char *gpf_path, *pf_path;
771 char *gdp_path, *dp_path;
772 int gpf_open_errno, gpf_read_errno;
773 int pf_open_errno, pf_read_errno;
774 int gdp_open_errno, gdp_read_errno;
775 int dp_open_errno, dp_read_errno;
777 volatile int exit_status = 0;
778 gboolean quiet = FALSE;
779 gchar *volatile cf_name = NULL;
780 gchar *rfilter = NULL;
781 gchar *dfilter = NULL;
782 dfilter_t *rfcode = NULL;
783 dfilter_t *dfcode = NULL;
787 gchar *output_only = NULL;
789 /* the leading - ensures that getopt() does not permute the argv[] entries
790 we have to make sure that the first getopt() preserves the content of argv[]
791 for the subsequent getopt_long() call */
792 #define OPTSTRING "-2C:d:e:E:hK:lo:O:qQr:R:S:t:T:u:vVxX:Y:z:"
794 static const char optstring[] = OPTSTRING;
796 cmdarg_err_init(failure_message, failure_message_cont);
798 /* Assemble the compile-time version information string */
799 comp_info_str = g_string_new("Compiled ");
800 get_compiled_version_info(comp_info_str, NULL, epan_get_compiled_version_info);
802 /* Assemble the run-time version information string */
803 runtime_info_str = g_string_new("Running ");
804 get_runtime_version_info(runtime_info_str, NULL);
806 /* Add it to the information to be reported on a crash. */
807 ws_add_crash_info("TFShark %s\n"
812 get_ws_vcs_version_info(), comp_info_str->str, runtime_info_str->str);
815 arg_list_utf_16to8(argc, argv);
816 create_app_running_mutex();
817 #if !GLIB_CHECK_VERSION(2,31,0)
823 * Get credential information for later use.
825 init_process_policies();
828 * Attempt to get the pathname of the executable file.
830 init_progfile_dir_error = init_progfile_dir(argv[0], main);
831 if (init_progfile_dir_error != NULL) {
832 fprintf(stderr, "tfshark: Can't get pathname of tfshark program: %s.\n",
833 init_progfile_dir_error);
837 * In order to have the -X opts assigned before the wslua machine starts
838 * we need to call getopts before epan_init() gets called.
841 optind_initial = optind;
843 while ((opt = getopt(argc, argv, optstring)) != -1) {
845 case 'C': /* Configuration Profile */
846 if (profile_exists (optarg, FALSE)) {
847 set_profile_name (optarg);
849 cmdarg_err("Configuration Profile \"%s\" does not exist", optarg);
853 case 'O': /* Only output these protocols */
854 output_only = g_strdup(optarg);
856 case 'V': /* Verbose */
857 print_details = TRUE;
858 print_packet_info = TRUE;
860 case 'x': /* Print packet data in hex (and ASCII) */
862 /* The user asked for hex output, so let's ensure they get it,
863 * even if they're writing to a file.
865 print_packet_info = TRUE;
876 * Print packet summary information is the default, unless either -V or -x
877 * were specified. Note that this is new behavior, which
878 * allows for the possibility of printing only hex/ascii output without
879 * necessarily requiring that either the summary or details be printed too.
881 if (print_summary == -1)
882 print_summary = (print_details || print_hex) ? FALSE : TRUE;
884 optind = optind_initial;
889 /** Send All g_log messages to our own handler **/
893 G_LOG_LEVEL_CRITICAL|
898 G_LOG_FLAG_FATAL|G_LOG_FLAG_RECURSION;
900 g_log_set_handler(NULL,
901 (GLogLevelFlags)log_flags,
902 tfshark_log_handler, NULL /* user_data */);
903 g_log_set_handler(LOG_DOMAIN_MAIN,
904 (GLogLevelFlags)log_flags,
905 tfshark_log_handler, NULL /* user_data */);
907 initialize_funnel_ops();
909 init_report_err(failure_message, open_failure_message, read_failure_message,
910 write_failure_message);
912 timestamp_set_type(TS_RELATIVE);
913 timestamp_set_precision(TS_PREC_AUTO);
914 timestamp_set_seconds_type(TS_SECONDS_DEFAULT);
916 init_open_routines();
919 /* Register all the plugin types we have. */
920 epan_register_plugin_types(); /* Types known to libwireshark */
921 ftap_register_plugin_types(); /* Types known to libfiletap */
923 /* Scan for plugins. This does *not* call their registration routines;
924 that's done later. */
927 /* Register all libfiletap plugin modules. */
928 register_all_filetap_modules();
932 /* Register all dissectors; we must do this before checking for the
933 "-G" flag, as the "-G" flag dumps information registered by the
934 dissectors, and we must do it before we read the preferences, in
935 case any dissectors register preferences. */
936 epan_init(register_all_protocols, register_all_protocol_handoffs, NULL, NULL);
938 /* Register all tap listeners; we do this before we parse the arguments,
939 as the "-z" argument can specify a registered tap. */
941 /* we register the plugin taps before the other taps because
942 stats_tree taps plugins will be registered as tap listeners
943 by stats_tree_stat.c and need to registered before that */
945 /* XXX Disable tap registration for now until we can get tfshark set up with
946 * its own set of taps and the necessary registration function etc.
948 register_all_plugin_tap_listeners();
950 register_all_tap_listeners();
953 /* If invoked with the "-G" flag, we dump out information based on
954 the argument to the "-G" flag; if no argument is specified,
955 for backwards compatibility we dump out a glossary of display
958 XXX - we do this here, for now, to support "-G" with no arguments.
959 If none of our build or other processes uses "-G" with no arguments,
960 we can just process it with the other arguments. */
961 if (argc >= 2 && strcmp(argv[1], "-G") == 0) {
962 proto_initialize_all_prefixes();
965 proto_registrar_dump_fields();
967 if (strcmp(argv[2], "column-formats") == 0)
968 column_dump_column_formats();
969 else if (strcmp(argv[2], "currentprefs") == 0) {
970 read_prefs(&gpf_open_errno, &gpf_read_errno, &gpf_path,
971 &pf_open_errno, &pf_read_errno, &pf_path);
974 else if (strcmp(argv[2], "decodes") == 0)
975 dissector_dump_decodes();
976 else if (strcmp(argv[2], "defaultprefs") == 0)
978 else if (strcmp(argv[2], "fields") == 0)
979 proto_registrar_dump_fields();
980 else if (strcmp(argv[2], "ftypes") == 0)
981 proto_registrar_dump_ftypes();
982 else if (strcmp(argv[2], "heuristic-decodes") == 0)
983 dissector_dump_heur_decodes();
984 else if (strcmp(argv[2], "plugins") == 0) {
989 wslua_plugins_dump_all();
992 else if (strcmp(argv[2], "protocols") == 0)
993 proto_registrar_dump_protocols();
994 else if (strcmp(argv[2], "values") == 0)
995 proto_registrar_dump_values();
996 else if (strcmp(argv[2], "?") == 0)
997 glossary_option_help();
998 else if (strcmp(argv[2], "-?") == 0)
999 glossary_option_help();
1001 cmdarg_err("Invalid \"%s\" option for -G flag, enter -G ? for more help.", argv[2]);
1008 /* Set the C-language locale to the native environment. */
1009 setlocale(LC_ALL, "");
1011 prefs_p = read_prefs(&gpf_open_errno, &gpf_read_errno, &gpf_path,
1012 &pf_open_errno, &pf_read_errno, &pf_path);
1013 if (gpf_path != NULL) {
1014 if (gpf_open_errno != 0) {
1015 cmdarg_err("Can't open global preferences file \"%s\": %s.",
1016 pf_path, g_strerror(gpf_open_errno));
1018 if (gpf_read_errno != 0) {
1019 cmdarg_err("I/O error reading global preferences file \"%s\": %s.",
1020 pf_path, g_strerror(gpf_read_errno));
1023 if (pf_path != NULL) {
1024 if (pf_open_errno != 0) {
1025 cmdarg_err("Can't open your preferences file \"%s\": %s.", pf_path,
1026 g_strerror(pf_open_errno));
1028 if (pf_read_errno != 0) {
1029 cmdarg_err("I/O error reading your preferences file \"%s\": %s.",
1030 pf_path, g_strerror(pf_read_errno));
1036 /* Read the disabled protocols file. */
1037 read_disabled_protos_list(&gdp_path, &gdp_open_errno, &gdp_read_errno,
1038 &dp_path, &dp_open_errno, &dp_read_errno);
1039 if (gdp_path != NULL) {
1040 if (gdp_open_errno != 0) {
1041 cmdarg_err("Could not open global disabled protocols file\n\"%s\": %s.",
1042 gdp_path, g_strerror(gdp_open_errno));
1044 if (gdp_read_errno != 0) {
1045 cmdarg_err("I/O error reading global disabled protocols file\n\"%s\": %s.",
1046 gdp_path, g_strerror(gdp_read_errno));
1050 if (dp_path != NULL) {
1051 if (dp_open_errno != 0) {
1053 "Could not open your disabled protocols file\n\"%s\": %s.", dp_path,
1054 g_strerror(dp_open_errno));
1056 if (dp_read_errno != 0) {
1058 "I/O error reading your disabled protocols file\n\"%s\": %s.", dp_path,
1059 g_strerror(dp_read_errno));
1064 cap_file_init(&cfile);
1066 /* Print format defaults to this. */
1067 print_format = PR_FMT_TEXT;
1069 output_fields = output_fields_new();
1071 /* Now get our args */
1072 while ((opt = getopt(argc, argv, optstring)) != -1) {
1074 case '2': /* Perform two pass analysis */
1075 perform_two_pass_analysis = TRUE;
1078 /* Configuration profile settings were already processed just ignore them this time*/
1080 case 'd': /* Decode as rule */
1081 if (!add_decode_as(optarg))
1084 #if defined(HAVE_HEIMDAL_KERBEROS) || defined(HAVE_MIT_KERBEROS)
1085 case 'K': /* Kerberos keytab file */
1086 read_keytab_file(optarg);
1091 output_fields_add(output_fields, optarg);
1095 if (!output_fields_set_option(output_fields, optarg)) {
1096 cmdarg_err("\"%s\" is not a valid field output option=value pair.", optarg);
1097 output_fields_list_options(stderr);
1102 case 'h': /* Print help and exit */
1106 case 'l': /* "Line-buffer" standard output */
1107 /* This isn't line-buffering, strictly speaking, it's just
1108 flushing the standard output after the information for
1109 each packet is printed; however, that should be good
1110 enough for all the purposes to which "-l" is put (and
1111 is probably actually better for "-V", as it does fewer
1114 See the comment in "process_packet()" for an explanation of
1115 why we do that, and why we don't just use "setvbuf()" to
1116 make the standard output line-buffered (short version: in
1117 Windows, "line-buffered" is the same as "fully-buffered",
1118 and the output buffer is only flushed when it fills up). */
1119 line_buffered = TRUE;
1121 case 'o': /* Override preference from command line */
1122 switch (prefs_set_pref(optarg)) {
1127 case PREFS_SET_SYNTAX_ERR:
1128 cmdarg_err("Invalid -o flag \"%s\"", optarg);
1132 case PREFS_SET_NO_SUCH_PREF:
1133 case PREFS_SET_OBSOLETE:
1134 cmdarg_err("-o flag \"%s\" specifies unknown preference", optarg);
1139 case 'q': /* Quiet */
1142 case 'Q': /* Really quiet */
1144 really_quiet = TRUE;
1146 case 'r': /* Read capture file x */
1147 cf_name = g_strdup(optarg);
1149 case 'R': /* Read file filter */
1152 case 'S': /* Set the line Separator to be printed between packets */
1153 separator = strdup(optarg);
1155 case 't': /* Time stamp type */
1156 if (strcmp(optarg, "r") == 0)
1157 timestamp_set_type(TS_RELATIVE);
1158 else if (strcmp(optarg, "a") == 0)
1159 timestamp_set_type(TS_ABSOLUTE);
1160 else if (strcmp(optarg, "ad") == 0)
1161 timestamp_set_type(TS_ABSOLUTE_WITH_YMD);
1162 else if (strcmp(optarg, "adoy") == 0)
1163 timestamp_set_type(TS_ABSOLUTE_WITH_YDOY);
1164 else if (strcmp(optarg, "d") == 0)
1165 timestamp_set_type(TS_DELTA);
1166 else if (strcmp(optarg, "dd") == 0)
1167 timestamp_set_type(TS_DELTA_DIS);
1168 else if (strcmp(optarg, "e") == 0)
1169 timestamp_set_type(TS_EPOCH);
1170 else if (strcmp(optarg, "u") == 0)
1171 timestamp_set_type(TS_UTC);
1172 else if (strcmp(optarg, "ud") == 0)
1173 timestamp_set_type(TS_UTC_WITH_YMD);
1174 else if (strcmp(optarg, "udoy") == 0)
1175 timestamp_set_type(TS_UTC_WITH_YDOY);
1177 cmdarg_err("Invalid time stamp type \"%s\"; it must be one of:", optarg);
1178 cmdarg_err_cont("\t\"a\" for absolute\n"
1179 "\t\"ad\" for absolute with YYYY-MM-DD date\n"
1180 "\t\"adoy\" for absolute with YYYY/DOY date\n"
1181 "\t\"d\" for delta\n"
1182 "\t\"dd\" for delta displayed\n"
1183 "\t\"e\" for epoch\n"
1184 "\t\"r\" for relative\n"
1185 "\t\"u\" for absolute UTC\n"
1186 "\t\"ud\" for absolute UTC with YYYY-MM-DD date\n"
1187 "\t\"udoy\" for absolute UTC with YYYY/DOY date");
1191 case 'T': /* printing Type */
1192 if (strcmp(optarg, "text") == 0) {
1193 output_action = WRITE_TEXT;
1194 print_format = PR_FMT_TEXT;
1195 } else if (strcmp(optarg, "ps") == 0) {
1196 output_action = WRITE_TEXT;
1197 print_format = PR_FMT_PS;
1198 } else if (strcmp(optarg, "pdml") == 0) {
1199 output_action = WRITE_XML;
1200 print_details = TRUE; /* Need details */
1201 print_summary = FALSE; /* Don't allow summary */
1202 } else if (strcmp(optarg, "psml") == 0) {
1203 output_action = WRITE_XML;
1204 print_details = FALSE; /* Don't allow details */
1205 print_summary = TRUE; /* Need summary */
1206 } else if (strcmp(optarg, "fields") == 0) {
1207 output_action = WRITE_FIELDS;
1208 print_details = TRUE; /* Need full tree info */
1209 print_summary = FALSE; /* Don't allow summary */
1211 cmdarg_err("Invalid -T parameter \"%s\"; it must be one of:", optarg); /* x */
1212 cmdarg_err_cont("\t\"fields\" The values of fields specified with the -e option, in a form\n"
1213 "\t specified by the -E option.\n"
1214 "\t\"pdml\" Packet Details Markup Language, an XML-based format for the\n"
1215 "\t details of a decoded packet. This information is equivalent to\n"
1216 "\t the packet details printed with the -V flag.\n"
1217 "\t\"ps\" PostScript for a human-readable one-line summary of each of\n"
1218 "\t the packets, or a multi-line view of the details of each of\n"
1219 "\t the packets, depending on whether the -V flag was specified.\n"
1220 "\t\"psml\" Packet Summary Markup Language, an XML-based format for the\n"
1221 "\t summary information of a decoded packet. This information is\n"
1222 "\t equivalent to the information shown in the one-line summary\n"
1223 "\t printed by default.\n"
1224 "\t\"text\" Text of a human-readable one-line summary of each of the\n"
1225 "\t packets, or a multi-line view of the details of each of the\n"
1226 "\t packets, depending on whether the -V flag was specified.\n"
1227 "\t This is the default.");
1231 case 'u': /* Seconds type */
1232 if (strcmp(optarg, "s") == 0)
1233 timestamp_set_seconds_type(TS_SECONDS_DEFAULT);
1234 else if (strcmp(optarg, "hms") == 0)
1235 timestamp_set_seconds_type(TS_SECONDS_HOUR_MIN_SEC);
1237 cmdarg_err("Invalid seconds type \"%s\"; it must be one of:", optarg);
1238 cmdarg_err_cont("\t\"s\" for seconds\n"
1239 "\t\"hms\" for hours, minutes and seconds");
1243 case 'v': /* Show version and exit */
1245 show_version(comp_info_str, runtime_info_str);
1246 g_string_free(comp_info_str, TRUE);
1247 g_string_free(runtime_info_str, TRUE);
1248 /* We don't really have to cleanup here, but it's a convenient way to test
1249 * start-up and shut-down of the epan library without any UI-specific
1250 * cruft getting in the way. Makes the results of running
1251 * $ ./tools/valgrind-wireshark -n
1252 * much more useful. */
1256 case 'O': /* Only output these protocols */
1257 /* already processed; just ignore it now */
1259 case 'V': /* Verbose */
1260 /* already processed; just ignore it now */
1262 case 'x': /* Print packet data in hex (and ASCII) */
1263 /* already processed; just ignore it now */
1271 /* We won't call the init function for the stat this soon
1272 as it would disallow MATE's fields (which are registered
1273 by the preferences set callback) from being used as
1274 part of a tap filter. Instead, we just add the argument
1275 to a list of stat arguments. */
1276 if (!process_stat_cmd_arg(optarg)) {
1277 if (strcmp("help", optarg)==0) {
1278 fprintf(stderr, "tfshark: The available statistics for the \"-z\" option are:\n");
1279 list_stat_cmd_args();
1282 cmdarg_err("Invalid -z argument \"%s\"; it must be one of:", optarg);
1283 list_stat_cmd_args();
1288 case '?': /* Bad flag - print usage message */
1295 /* If we specified output fields, but not the output field type... */
1296 if (WRITE_FIELDS != output_action && 0 != output_fields_num_fields(output_fields)) {
1297 cmdarg_err("Output fields were specified with \"-e\", "
1298 "but \"-Tfields\" was not specified.");
1300 } else if (WRITE_FIELDS == output_action && 0 == output_fields_num_fields(output_fields)) {
1301 cmdarg_err("\"-Tfields\" was specified, but no fields were "
1302 "specified with \"-e\".");
1307 /* If no capture filter or display filter has been specified, and there are
1308 still command-line arguments, treat them as the tokens of a capture
1309 filter (if no "-r" flag was specified) or a display filter (if a "-r"
1310 flag was specified. */
1311 if (optind < argc) {
1312 if (cf_name != NULL) {
1313 if (dfilter != NULL) {
1314 cmdarg_err("Display filters were specified both with \"-d\" "
1315 "and with additional command-line arguments.");
1318 dfilter = get_args_as_string(argc, argv, optind);
1322 /* if "-q" wasn't specified, we should print packet information */
1324 print_packet_info = TRUE;
1332 if (output_action != WRITE_TEXT) {
1333 cmdarg_err("Raw packet hex data can only be printed as text or PostScript");
1338 if (output_only != NULL) {
1341 if (!print_details) {
1342 cmdarg_err("-O requires -V");
1346 output_only_tables = g_hash_table_new (g_str_hash, g_str_equal);
1347 for (ps = strtok (output_only, ","); ps; ps = strtok (NULL, ",")) {
1348 g_hash_table_insert(output_only_tables, (gpointer)ps, (gpointer)ps);
1352 if (rfilter != NULL && !perform_two_pass_analysis) {
1353 cmdarg_err("-R without -2 is deprecated. For single-pass filtering use -Y.");
1357 /* Notify all registered modules that have had any of their preferences
1358 changed either from one of the preferences file or from the command
1359 line that their preferences have changed. */
1362 /* At this point MATE will have registered its field array so we can
1363 have a tap filter with one of MATE's late-registered fields as part
1364 of the filter. We can now process all the "-z" arguments. */
1365 start_requested_stats();
1367 /* disabled protocols as per configuration file */
1368 if (gdp_path == NULL && dp_path == NULL) {
1369 set_disabled_protos_list();
1372 /* Build the column format array */
1373 build_column_format_array(&cfile.cinfo, prefs_p->num_cols, TRUE);
1375 if (rfilter != NULL) {
1376 if (!dfilter_compile(rfilter, &rfcode)) {
1377 cmdarg_err("%s", dfilter_error_msg);
1382 cfile.rfcode = rfcode;
1384 if (dfilter != NULL) {
1385 if (!dfilter_compile(dfilter, &dfcode)) {
1386 cmdarg_err("%s", dfilter_error_msg);
1391 cfile.dfcode = dfcode;
1393 if (print_packet_info) {
1394 /* If we're printing as text or PostScript, we have
1395 to create a print stream. */
1396 if (output_action == WRITE_TEXT) {
1397 switch (print_format) {
1400 print_stream = print_stream_text_stdio_new(stdout);
1404 print_stream = print_stream_ps_stdio_new(stdout);
1408 g_assert_not_reached();
1413 /* We have to dissect each packet if:
1415 we're printing information about each packet;
1417 we're using a read filter on the packets;
1419 we're using a display filter on the packets;
1421 we're using any taps that need dissection. */
1422 do_dissection = print_packet_info || rfcode || dfcode || tap_listeners_require_dissection();
1426 * We're reading a capture file.
1430 * Immediately relinquish any special privileges we have; we must not
1431 * be allowed to read any capture files the user running TShark
1434 relinquish_special_privs_perm();
1435 print_current_user();
1437 /* TODO: if tfshark is ever changed to give the user a choice of which
1438 open_routine reader to use, then the following needs to change. */
1439 if (cf_open(&cfile, cf_name, WTAP_TYPE_AUTO, FALSE, &err) != CF_OK) {
1444 /* Process the packets in the file */
1446 /* XXX - for now there is only 1 packet */
1447 err = load_cap_file(&cfile, 1, 0);
1449 CATCH(OutOfMemoryError) {
1453 "Sorry, but TFShark has to terminate now!\n"
1455 "Some infos / workarounds can be found at:\n"
1456 "http://wiki.wireshark.org/KnownBugs/OutOfMemory\n");
1462 /* We still dump out the results of taps, etc., as we might have
1463 read some packets; however, we exit with an error status. */
1470 if (cfile.frames != NULL) {
1471 free_frame_data_sequence(cfile.frames);
1472 cfile.frames = NULL;
1475 draw_tap_listeners(TRUE);
1476 funnel_dump_all_text_windows();
1477 epan_free(cfile.epan);
1480 output_fields_free(output_fields);
1481 output_fields = NULL;
1486 static const nstime_t *
1487 tfshark_get_frame_ts(void *data, guint32 frame_num)
1489 capture_file *cf = (capture_file *) data;
1491 if (ref && ref->num == frame_num)
1492 return &ref->abs_ts;
1494 if (prev_dis && prev_dis->num == frame_num)
1495 return &prev_dis->abs_ts;
1497 if (prev_cap && prev_cap->num == frame_num)
1498 return &prev_cap->abs_ts;
1501 frame_data *fd = frame_data_sequence_find(cf->frames, frame_num);
1503 return (fd) ? &fd->abs_ts : NULL;
1510 no_interface_name(void *data _U_, guint32 interface_id _U_)
1516 tfshark_epan_new(capture_file *cf)
1518 epan_t *epan = epan_new();
1521 epan->get_frame_ts = tfshark_get_frame_ts;
1522 epan->get_interface_name = no_interface_name;
1523 epan->get_user_comment = NULL;
1529 process_packet_first_pass(capture_file *cf, epan_dissect_t *edt,
1530 gint64 offset, struct wtap_pkthdr *whdr,
1537 /* The frame number of this packet is one more than the count of
1538 frames in this packet. */
1539 framenum = cf->count + 1;
1541 /* If we're not running a display filter and we're not printing any
1542 packet information, we don't need to do a dissection. This means
1543 that all packets can be marked as 'passed'. */
1546 frame_data_init(&fdlocal, framenum, whdr, offset, cum_bytes);
1548 /* If we're going to print packet information, or we're going to
1549 run a read filter, or display filter, or we're going to process taps, set up to
1550 do a dissection and do so. */
1552 /* If we're running a read filter, prime the epan_dissect_t with that
1555 epan_dissect_prime_dfilter(edt, cf->rfcode);
1557 frame_data_set_before_dissect(&fdlocal, &cf->elapsed_time,
1559 if (ref == &fdlocal) {
1560 ref_frame = fdlocal;
1564 epan_dissect_file_run(edt, whdr, file_tvbuff_new(&fdlocal, pd), &fdlocal, NULL);
1566 /* Run the read filter if we have one. */
1568 passed = dfilter_apply_edt(cf->rfcode, edt);
1572 frame_data_set_after_dissect(&fdlocal, &cum_bytes);
1573 prev_cap = prev_dis = frame_data_sequence_add(cf->frames, &fdlocal);
1575 /* If we're not doing dissection then there won't be any dependent frames.
1576 * More importantly, edt.pi.dependent_frames won't be initialized because
1577 * epan hasn't been initialized.
1580 g_slist_foreach(edt->pi.dependent_frames, find_and_mark_frame_depended_upon, cf->frames);
1585 /* if we don't add it to the frame_data_sequence, clean it up right now
1587 frame_data_destroy(&fdlocal);
1591 epan_dissect_reset(edt);
1597 process_packet_second_pass(capture_file *cf, epan_dissect_t *edt, frame_data *fdata,
1598 struct wtap_pkthdr *phdr, Buffer *buf,
1604 /* If we're not running a display filter and we're not printing any
1605 packet information, we don't need to do a dissection. This means
1606 that all packets can be marked as 'passed'. */
1609 /* If we're going to print packet information, or we're going to
1610 run a read filter, or we're going to process taps, set up to
1611 do a dissection and do so. */
1614 /* If we're running a display filter, prime the epan_dissect_t with that
1617 epan_dissect_prime_dfilter(edt, cf->dfcode);
1619 col_custom_prime_edt(edt, &cf->cinfo);
1621 /* We only need the columns if either
1622 1) some tap needs the columns
1624 2) we're printing packet info but we're *not* verbose; in verbose
1625 mode, we print the protocol tree, not the protocol summary.
1627 if ((tap_flags & TL_REQUIRES_COLUMNS) || (print_packet_info && print_summary))
1632 frame_data_set_before_dissect(fdata, &cf->elapsed_time,
1639 epan_dissect_file_run_with_taps(edt, phdr, file_tvbuff_new_buffer(fdata, buf), fdata, cinfo);
1641 /* Run the read/display filter if we have one. */
1643 passed = dfilter_apply_edt(cf->dfcode, edt);
1647 frame_data_set_after_dissect(fdata, &cum_bytes);
1648 /* Process this packet. */
1649 if (print_packet_info) {
1650 /* We're printing packet information; print the information for
1652 print_packet(cf, edt);
1654 /* The ANSI C standard does not appear to *require* that a line-buffered
1655 stream be flushed to the host environment whenever a newline is
1656 written, it just says that, on such a stream, characters "are
1657 intended to be transmitted to or from the host environment as a
1658 block when a new-line character is encountered".
1660 The Visual C++ 6.0 C implementation doesn't do what is intended;
1661 even if you set a stream to be line-buffered, it still doesn't
1662 flush the buffer at the end of every line.
1664 So, if the "-l" flag was specified, we flush the standard output
1665 at the end of a packet. This will do the right thing if we're
1666 printing packet summary lines, and, as we print the entire protocol
1667 tree for a single packet without waiting for anything to happen,
1668 it should be as good as line-buffered mode if we're printing
1669 protocol trees. (The whole reason for the "-l" flag in either
1670 tcpdump or TShark is to allow the output of a live capture to
1671 be piped to a program or script and to have that script see the
1672 information for the packet as soon as it's printed, rather than
1673 having to wait until a standard I/O buffer fills up. */
1677 if (ferror(stdout)) {
1678 show_print_file_io_error(errno);
1687 epan_dissect_reset(edt);
1689 return passed || fdata->flags.dependent_of_displayed;
1693 local_wtap_read(capture_file *cf, struct wtap_pkthdr* file_phdr, int *err, gchar **err_info, gint64 *data_offset _U_, guint8** data_buffer)
1696 gint64 packet_size = wtap_file_size(cf->wth, err);
1698 *data_buffer = (guint8*)g_malloc((gsize)packet_size);
1699 bytes_read = file_read(*data_buffer, (unsigned int)packet_size, cf->wth->fh);
1701 if (bytes_read < 0) {
1702 *err = file_error(cf->wth->fh, err_info);
1704 *err = FTAP_ERR_SHORT_READ;
1706 } else if (bytes_read == 0) {
1707 /* Done with file, no error */
1712 /* XXX - SET FRAME SIZE EQUAL TO TOTAL FILE SIZE */
1713 file_phdr->caplen = (guint32)packet_size;
1714 file_phdr->len = (guint32)packet_size;
1718 * Set the packet encapsulation to the file's encapsulation
1719 * value; if that's not WTAP_ENCAP_PER_PACKET, it's the
1720 * right answer (and means that the read routine for this
1721 * capture file type doesn't have to set it), and if it
1722 * *is* WTAP_ENCAP_PER_PACKET, the caller needs to set it
1725 wth->phdr.pkt_encap = wth->file_encap;
1727 if (!wth->subtype_read(wth, err, err_info, data_offset)) {
1729 * If we didn't get an error indication, we read
1730 * the last packet. See if there's any deferred
1731 * error, as might, for example, occur if we're
1732 * reading a compressed file, and we got an error
1733 * reading compressed data from the file, but
1734 * got enough compressed data to decompress the
1735 * last packet of the file.
1738 *err = file_error(wth->fh, err_info);
1739 return FALSE; /* failure */
1743 * It makes no sense for the captured data length to be bigger
1744 * than the actual data length.
1746 if (wth->phdr.caplen > wth->phdr.len)
1747 wth->phdr.caplen = wth->phdr.len;
1750 * Make sure that it's not WTAP_ENCAP_PER_PACKET, as that
1751 * probably means the file has that encapsulation type
1752 * but the read routine didn't set this packet's
1753 * encapsulation type.
1755 g_assert(wth->phdr.pkt_encap != WTAP_ENCAP_PER_PACKET);
1758 return TRUE; /* success */
1762 load_cap_file(capture_file *cf, int max_packet_count, gint64 max_byte_count)
1766 gchar *err_info = NULL;
1767 gint64 data_offset = 0;
1768 gboolean filtering_tap_listeners;
1771 epan_dissect_t *edt = NULL;
1772 struct wtap_pkthdr file_phdr;
1775 if (print_packet_info) {
1776 if (!write_preamble(cf)) {
1778 show_print_file_io_error(err);
1783 /* Do we have any tap listeners with filters? */
1784 filtering_tap_listeners = have_filtering_tap_listeners();
1786 /* Get the union of the flags for all tap listeners. */
1787 tap_flags = union_of_tap_listener_flags();
1789 memset(&file_phdr, 0, sizeof(file_phdr));
1791 /* XXX - TEMPORARY HACK TO ELF DISSECTOR */
1792 file_phdr.pkt_encap = 1234;
1794 if (perform_two_pass_analysis) {
1797 /* Allocate a frame_data_sequence for all the frames. */
1798 cf->frames = new_frame_data_sequence();
1800 if (do_dissection) {
1801 gboolean create_proto_tree = FALSE;
1803 /* If we're going to be applying a filter, we'll need to
1804 create a protocol tree against which to apply the filter. */
1806 create_proto_tree = TRUE;
1808 /* We're not going to display the protocol tree on this pass,
1809 so it's not going to be "visible". */
1810 edt = epan_dissect_new(cf->epan, create_proto_tree, FALSE);
1812 while (local_wtap_read(cf, &file_phdr, &err, &err_info, &data_offset, &raw_data)) {
1813 if (process_packet_first_pass(cf, edt, data_offset, &file_phdr/*wtap_phdr(cf->wth)*/,
1814 wtap_buf_ptr(cf->wth))) {
1816 /* Stop reading if we have the maximum number of packets;
1817 * When the -c option has not been used, max_packet_count
1818 * starts at 0, which practically means, never stop reading.
1819 * (unless we roll over max_packet_count ?)
1821 if ( (--max_packet_count == 0) || (max_byte_count != 0 && data_offset >= max_byte_count)) {
1822 err = 0; /* This is not an error */
1829 epan_dissect_free(edt);
1834 /* Close the sequential I/O side, to free up memory it requires. */
1835 wtap_sequential_close(cf->wth);
1838 /* Allow the protocol dissectors to free up memory that they
1839 * don't need after the sequential run-through of the packets. */
1840 postseq_cleanup_all_protocols();
1844 buffer_init(&buf, 1500);
1846 if (do_dissection) {
1847 gboolean create_proto_tree;
1849 if (cf->dfcode || print_details || filtering_tap_listeners ||
1850 (tap_flags & TL_REQUIRES_PROTO_TREE) || have_custom_cols(&cf->cinfo))
1851 create_proto_tree = TRUE;
1853 create_proto_tree = FALSE;
1855 /* The protocol tree will be "visible", i.e., printed, only if we're
1856 printing packet details, which is true if we're printing stuff
1857 ("print_packet_info" is true) and we're in verbose mode
1858 ("packet_details" is true). */
1859 edt = epan_dissect_new(cf->epan, create_proto_tree, print_packet_info && print_details);
1862 for (framenum = 1; err == 0 && framenum <= cf->count; framenum++) {
1863 fdata = frame_data_sequence_find(cf->frames, framenum);
1865 if (wtap_seek_read(cf->wth, fdata->file_off,
1866 &buf, fdata->cap_len, &err, &err_info)) {
1867 process_packet_second_pass(cf, edt, fdata, &cf->phdr, &buf, tap_flags);
1870 process_packet_second_pass(cf, edt, fdata, &cf->phdr, &buf, tap_flags);
1875 epan_dissect_free(edt);
1884 if (do_dissection) {
1885 gboolean create_proto_tree;
1887 if (cf->rfcode || cf->dfcode || print_details || filtering_tap_listeners ||
1888 (tap_flags & TL_REQUIRES_PROTO_TREE) || have_custom_cols(&cf->cinfo))
1889 create_proto_tree = TRUE;
1891 create_proto_tree = FALSE;
1893 /* The protocol tree will be "visible", i.e., printed, only if we're
1894 printing packet details, which is true if we're printing stuff
1895 ("print_packet_info" is true) and we're in verbose mode
1896 ("packet_details" is true). */
1897 edt = epan_dissect_new(cf->epan, create_proto_tree, print_packet_info && print_details);
1900 while (local_wtap_read(cf, &file_phdr, &err, &err_info, &data_offset, &raw_data)) {
1904 process_packet(cf, edt, data_offset, &file_phdr/*wtap_phdr(cf->wth)*/,
1905 raw_data, tap_flags);
1907 /* Stop reading if we have the maximum number of packets;
1908 * When the -c option has not been used, max_packet_count
1909 * starts at 0, which practically means, never stop reading.
1910 * (unless we roll over max_packet_count ?)
1912 if ( (--max_packet_count == 0) || (max_byte_count != 0 && data_offset >= max_byte_count)) {
1913 err = 0; /* This is not an error */
1919 epan_dissect_free(edt);
1926 * Print a message noting that the read failed somewhere along the line.
1928 * If we're printing packet data, and the standard output and error are
1929 * going to the same place, flush the standard output, so everything
1930 * buffered up is written, and then print a newline to the standard error
1931 * before printing the error message, to separate it from the packet
1932 * data. (Alas, that only works on UN*X; st_dev is meaningless, and
1933 * the _fstat() documentation at Microsoft doesn't indicate whether
1934 * st_ino is even supported.)
1937 if (print_packet_info) {
1938 struct stat stat_stdout, stat_stderr;
1940 if (fstat(1, &stat_stdout) == 0 && fstat(2, &stat_stderr) == 0) {
1941 if (stat_stdout.st_dev == stat_stderr.st_dev &&
1942 stat_stdout.st_ino == stat_stderr.st_ino) {
1944 fprintf(stderr, "\n");
1951 case FTAP_ERR_UNSUPPORTED:
1952 cmdarg_err("The file \"%s\" contains record data that TFShark doesn't support.\n(%s)",
1953 cf->filename, err_info);
1957 case FTAP_ERR_UNSUPPORTED_ENCAP:
1958 cmdarg_err("The file \"%s\" has a packet with a network type that TFShark doesn't support.\n(%s)",
1959 cf->filename, err_info);
1963 case FTAP_ERR_CANT_READ:
1964 cmdarg_err("An attempt to read from the file \"%s\" failed for some unknown reason.",
1968 case FTAP_ERR_SHORT_READ:
1969 cmdarg_err("The file \"%s\" appears to have been cut short in the middle of a packet.",
1973 case FTAP_ERR_BAD_FILE:
1974 cmdarg_err("The file \"%s\" appears to be damaged or corrupt.\n(%s)",
1975 cf->filename, err_info);
1979 case FTAP_ERR_DECOMPRESS:
1980 cmdarg_err("The compressed file \"%s\" appears to be damaged or corrupt.\n"
1981 "(%s)", cf->filename, err_info);
1985 cmdarg_err("An error occurred while reading the file \"%s\": %s.",
1986 cf->filename, ftap_strerror(err));
1990 if (print_packet_info) {
1991 if (!write_finale()) {
1993 show_print_file_io_error(err);
1999 wtap_close(cf->wth);
2006 process_packet(capture_file *cf, epan_dissect_t *edt, gint64 offset,
2007 struct wtap_pkthdr *whdr, const guchar *pd, guint tap_flags)
2013 /* Count this packet. */
2016 /* If we're not running a display filter and we're not printing any
2017 packet information, we don't need to do a dissection. This means
2018 that all packets can be marked as 'passed'. */
2021 frame_data_init(&fdata, cf->count, whdr, offset, cum_bytes);
2023 /* If we're going to print packet information, or we're going to
2024 run a read filter, or we're going to process taps, set up to
2025 do a dissection and do so. */
2027 /* If we're running a filter, prime the epan_dissect_t with that
2030 epan_dissect_prime_dfilter(edt, cf->dfcode);
2032 col_custom_prime_edt(edt, &cf->cinfo);
2034 /* We only need the columns if either
2035 1) some tap needs the columns
2037 2) we're printing packet info but we're *not* verbose; in verbose
2038 mode, we print the protocol tree, not the protocol summary.
2040 3) there is a column mapped as an individual field */
2041 if ((tap_flags & TL_REQUIRES_COLUMNS) || (print_packet_info && print_summary) || output_fields_has_cols(output_fields))
2046 frame_data_set_before_dissect(&fdata, &cf->elapsed_time,
2048 if (ref == &fdata) {
2053 epan_dissect_file_run_with_taps(edt, whdr, frame_tvbuff_new(&fdata, pd), &fdata, cinfo);
2055 /* Run the filter if we have it. */
2057 passed = dfilter_apply_edt(cf->dfcode, edt);
2061 frame_data_set_after_dissect(&fdata, &cum_bytes);
2063 /* Process this packet. */
2064 if (print_packet_info) {
2065 /* We're printing packet information; print the information for
2067 print_packet(cf, edt);
2069 /* The ANSI C standard does not appear to *require* that a line-buffered
2070 stream be flushed to the host environment whenever a newline is
2071 written, it just says that, on such a stream, characters "are
2072 intended to be transmitted to or from the host environment as a
2073 block when a new-line character is encountered".
2075 The Visual C++ 6.0 C implementation doesn't do what is intended;
2076 even if you set a stream to be line-buffered, it still doesn't
2077 flush the buffer at the end of every line.
2079 So, if the "-l" flag was specified, we flush the standard output
2080 at the end of a packet. This will do the right thing if we're
2081 printing packet summary lines, and, as we print the entire protocol
2082 tree for a single packet without waiting for anything to happen,
2083 it should be as good as line-buffered mode if we're printing
2084 protocol trees. (The whole reason for the "-l" flag in either
2085 tcpdump or TShark is to allow the output of a live capture to
2086 be piped to a program or script and to have that script see the
2087 information for the packet as soon as it's printed, rather than
2088 having to wait until a standard I/O buffer fills up. */
2092 if (ferror(stdout)) {
2093 show_print_file_io_error(errno);
2098 /* this must be set after print_packet() [bug #8160] */
2099 prev_dis_frame = fdata;
2100 prev_dis = &prev_dis_frame;
2103 prev_cap_frame = fdata;
2104 prev_cap = &prev_cap_frame;
2107 epan_dissect_reset(edt);
2108 frame_data_destroy(&fdata);
2114 write_preamble(capture_file *cf)
2116 switch (output_action) {
2119 return print_preamble(print_stream, cf ? cf->filename : NULL, get_ws_vcs_version_info());
2123 write_pdml_preamble(stdout, cf ? cf->filename : NULL);
2125 write_psml_preamble(stdout);
2126 return !ferror(stdout);
2129 write_fields_preamble(output_fields, stdout);
2130 return !ferror(stdout);
2133 g_assert_not_reached();
2139 get_line_buf(size_t len)
2141 static char *line_bufp = NULL;
2142 static size_t line_buf_len = 256;
2143 size_t new_line_buf_len;
2145 for (new_line_buf_len = line_buf_len; len > new_line_buf_len;
2146 new_line_buf_len *= 2)
2148 if (line_bufp == NULL) {
2149 line_buf_len = new_line_buf_len;
2150 line_bufp = (char *)g_malloc(line_buf_len + 1);
2152 if (new_line_buf_len > line_buf_len) {
2153 line_buf_len = new_line_buf_len;
2154 line_bufp = (char *)g_realloc(line_bufp, line_buf_len + 1);
2161 put_string(char *dest, const char *str, size_t str_len)
2163 memcpy(dest, str, str_len);
2164 dest[str_len] = '\0';
2168 put_spaces_string(char *dest, const char *str, size_t str_len, size_t str_with_spaces)
2172 for (i = str_len; i < str_with_spaces; i++)
2175 put_string(dest, str, str_len);
2179 put_string_spaces(char *dest, const char *str, size_t str_len, size_t str_with_spaces)
2183 memcpy(dest, str, str_len);
2184 for (i = str_len; i < str_with_spaces; i++)
2187 dest[str_with_spaces] = '\0';
2191 print_columns(capture_file *cf)
2199 line_bufp = get_line_buf(256);
2202 for (i = 0; i < cf->cinfo.num_cols; i++) {
2203 /* Skip columns not marked as visible. */
2204 if (!get_column_visible(i))
2206 switch (cf->cinfo.col_fmt[i]) {
2208 column_len = col_len = strlen(cf->cinfo.col_data[i]);
2211 line_bufp = get_line_buf(buf_offset + column_len);
2212 put_spaces_string(line_bufp + buf_offset, cf->cinfo.col_data[i], col_len, column_len);
2218 case COL_ABS_YMD_TIME: /* XXX - wider */
2219 case COL_ABS_YDOY_TIME: /* XXX - wider */
2221 case COL_UTC_YMD_TIME: /* XXX - wider */
2222 case COL_UTC_YDOY_TIME: /* XXX - wider */
2223 column_len = col_len = strlen(cf->cinfo.col_data[i]);
2224 if (column_len < 10)
2226 line_bufp = get_line_buf(buf_offset + column_len);
2227 put_spaces_string(line_bufp + buf_offset, cf->cinfo.col_data[i], col_len, column_len);
2233 case COL_DEF_DL_SRC:
2234 case COL_RES_DL_SRC:
2235 case COL_UNRES_DL_SRC:
2236 case COL_DEF_NET_SRC:
2237 case COL_RES_NET_SRC:
2238 case COL_UNRES_NET_SRC:
2239 column_len = col_len = strlen(cf->cinfo.col_data[i]);
2240 if (column_len < 12)
2242 line_bufp = get_line_buf(buf_offset + column_len);
2243 put_spaces_string(line_bufp + buf_offset, cf->cinfo.col_data[i], col_len, column_len);
2249 case COL_DEF_DL_DST:
2250 case COL_RES_DL_DST:
2251 case COL_UNRES_DL_DST:
2252 case COL_DEF_NET_DST:
2253 case COL_RES_NET_DST:
2254 case COL_UNRES_NET_DST:
2255 column_len = col_len = strlen(cf->cinfo.col_data[i]);
2256 if (column_len < 12)
2258 line_bufp = get_line_buf(buf_offset + column_len);
2259 put_string_spaces(line_bufp + buf_offset, cf->cinfo.col_data[i], col_len, column_len);
2263 column_len = strlen(cf->cinfo.col_data[i]);
2264 line_bufp = get_line_buf(buf_offset + column_len);
2265 put_string(line_bufp + buf_offset, cf->cinfo.col_data[i], column_len);
2268 buf_offset += column_len;
2269 if (i != cf->cinfo.num_cols - 1) {
2271 * This isn't the last column, so we need to print a
2272 * separator between this column and the next.
2274 * If we printed a network source and are printing a
2275 * network destination of the same type next, separate
2276 * them with " -> "; if we printed a network destination
2277 * and are printing a network source of the same type
2278 * next, separate them with " <- "; otherwise separate them
2281 * We add enough space to the buffer for " <- " or " -> ",
2282 * even if we're only adding " ".
2284 line_bufp = get_line_buf(buf_offset + 4);
2285 switch (cf->cinfo.col_fmt[i]) {
2290 switch (cf->cinfo.col_fmt[i + 1]) {
2295 put_string(line_bufp + buf_offset, " -> ", 4);
2300 put_string(line_bufp + buf_offset, " ", 1);
2306 case COL_DEF_DL_SRC:
2307 case COL_RES_DL_SRC:
2308 case COL_UNRES_DL_SRC:
2309 switch (cf->cinfo.col_fmt[i + 1]) {
2311 case COL_DEF_DL_DST:
2312 case COL_RES_DL_DST:
2313 case COL_UNRES_DL_DST:
2314 put_string(line_bufp + buf_offset, " -> ", 4);
2319 put_string(line_bufp + buf_offset, " ", 1);
2325 case COL_DEF_NET_SRC:
2326 case COL_RES_NET_SRC:
2327 case COL_UNRES_NET_SRC:
2328 switch (cf->cinfo.col_fmt[i + 1]) {
2330 case COL_DEF_NET_DST:
2331 case COL_RES_NET_DST:
2332 case COL_UNRES_NET_DST:
2333 put_string(line_bufp + buf_offset, " -> ", 4);
2338 put_string(line_bufp + buf_offset, " ", 1);
2347 switch (cf->cinfo.col_fmt[i + 1]) {
2352 put_string(line_bufp + buf_offset, " <- ", 4);
2357 put_string(line_bufp + buf_offset, " ", 1);
2363 case COL_DEF_DL_DST:
2364 case COL_RES_DL_DST:
2365 case COL_UNRES_DL_DST:
2366 switch (cf->cinfo.col_fmt[i + 1]) {
2368 case COL_DEF_DL_SRC:
2369 case COL_RES_DL_SRC:
2370 case COL_UNRES_DL_SRC:
2371 put_string(line_bufp + buf_offset, " <- ", 4);
2376 put_string(line_bufp + buf_offset, " ", 1);
2382 case COL_DEF_NET_DST:
2383 case COL_RES_NET_DST:
2384 case COL_UNRES_NET_DST:
2385 switch (cf->cinfo.col_fmt[i + 1]) {
2387 case COL_DEF_NET_SRC:
2388 case COL_RES_NET_SRC:
2389 case COL_UNRES_NET_SRC:
2390 put_string(line_bufp + buf_offset, " <- ", 4);
2395 put_string(line_bufp + buf_offset, " ", 1);
2402 put_string(line_bufp + buf_offset, " ", 1);
2408 return print_line(print_stream, 0, line_bufp);
2412 print_packet(capture_file *cf, epan_dissect_t *edt)
2414 print_args_t print_args;
2416 if (print_summary || output_fields_has_cols(output_fields)) {
2417 /* Just fill in the columns. */
2418 epan_dissect_fill_in_columns(edt, FALSE, TRUE);
2420 if (print_summary) {
2421 /* Now print them. */
2422 switch (output_action) {
2425 if (!print_columns(cf))
2430 proto_tree_write_psml(edt, stdout);
2431 return !ferror(stdout);
2432 case WRITE_FIELDS: /*No non-verbose "fields" format */
2433 g_assert_not_reached();
2438 if (print_details) {
2439 /* Print the information in the protocol tree. */
2440 switch (output_action) {
2443 /* Only initialize the fields that are actually used in proto_tree_print.
2444 * This is particularly important for .range, as that's heap memory which
2445 * we would otherwise have to g_free().
2446 print_args.to_file = TRUE;
2447 print_args.format = print_format;
2448 print_args.print_summary = print_summary;
2449 print_args.print_formfeed = FALSE;
2450 packet_range_init(&print_args.range, &cfile);
2452 print_args.print_hex = print_hex;
2453 print_args.print_dissections = print_details ? print_dissections_expanded : print_dissections_none;
2455 if (!proto_tree_print(&print_args, edt, print_stream))
2458 if (!print_line(print_stream, 0, separator))
2464 proto_tree_write_pdml(edt, stdout);
2466 return !ferror(stdout);
2468 proto_tree_write_fields(output_fields, edt, &cf->cinfo, stdout);
2470 return !ferror(stdout);
2474 if (print_summary || print_details) {
2475 if (!print_line(print_stream, 0, ""))
2478 if (!print_hex_data(print_stream, edt))
2480 if (!print_line(print_stream, 0, separator))
2489 switch (output_action) {
2492 return print_finale(print_stream);
2496 write_pdml_finale(stdout);
2498 write_psml_finale(stdout);
2499 return !ferror(stdout);
2502 write_fields_finale(output_fields, stdout);
2503 return !ferror(stdout);
2506 g_assert_not_reached();
2512 cf_open(capture_file *cf, const char *fname, unsigned int type, gboolean is_tempfile, int *err)
2520 char err_msg[2048+1];
2523 fth = ftap_open_offline(fname, err, &err_info, perform_two_pass_analysis);
2527 wth = wtap_open_offline(fname, type, err, &err_info, perform_two_pass_analysis);
2532 /* The open succeeded. Fill in the information for this file. */
2534 /* Create new epan session for dissection. */
2535 epan_free(cf->epan);
2536 cf->epan = tfshark_epan_new(cf);
2539 cf->wth = (struct wtap*)fth; /**** XXX - DOESN'T WORK RIGHT NOW!!!! */
2543 cf->f_datalen = 0; /* not used, but set it anyway */
2545 /* Set the file name because we need it to set the follow stream filter.
2546 XXX - is that still true? We need it for other reasons, though,
2548 cf->filename = g_strdup(fname);
2550 /* Indicate whether it's a permanent or temporary file. */
2551 cf->is_tempfile = is_tempfile;
2553 /* No user changes yet. */
2554 cf->unsaved_changes = FALSE;
2556 cf->cd_t = ftap_file_type_subtype((struct ftap*)cf->wth); /**** XXX - DOESN'T WORK RIGHT NOW!!!! */
2557 cf->open_type = type;
2559 cf->drops_known = FALSE;
2561 cf->snap = ftap_snapshot_length((struct ftap*)cf->wth); /**** XXX - DOESN'T WORK RIGHT NOW!!!! */
2562 if (cf->snap == 0) {
2563 /* Snapshot length not known. */
2564 cf->has_snap = FALSE;
2565 cf->snap = FTAP_MAX_RECORD_SIZE;
2567 cf->has_snap = TRUE;
2568 nstime_set_zero(&cf->elapsed_time);
2573 cf->state = FILE_READ_IN_PROGRESS;
2578 g_snprintf(err_msg, sizeof err_msg,
2579 cf_open_error_message(*err, err_info, FALSE, cf->cd_t), fname);
2580 cmdarg_err("%s", err_msg);
2585 show_print_file_io_error(int err)
2590 cmdarg_err("Not all the packets could be printed because there is "
2591 "no space left on the file system.");
2596 cmdarg_err("Not all the packets could be printed because you are "
2597 "too close to, or over your disk quota.");
2602 cmdarg_err("An error occurred while printing packets: %s.",
2609 cf_open_error_message(int err, gchar *err_info, gboolean for_writing,
2613 static char errmsg_errno[1024+1];
2616 /* Wiretap error. */
2619 case FTAP_ERR_NOT_REGULAR_FILE:
2620 errmsg = "The file \"%s\" is a \"special file\" or socket or other non-regular file.";
2623 case FTAP_ERR_RANDOM_OPEN_PIPE:
2624 /* Seen only when opening a capture file for reading. */
2625 errmsg = "The file \"%s\" is a pipe or FIFO; TFShark can't read pipe or FIFO files in two-pass mode.";
2628 case FTAP_ERR_FILE_UNKNOWN_FORMAT:
2629 /* Seen only when opening a capture file for reading. */
2630 errmsg = "The file \"%s\" isn't a capture file in a format TFShark understands.";
2633 case FTAP_ERR_UNSUPPORTED:
2634 /* Seen only when opening a capture file for reading. */
2635 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2636 "The file \"%%s\" isn't a capture file in a format TFShark understands.\n"
2639 errmsg = errmsg_errno;
2642 case FTAP_ERR_CANT_WRITE_TO_PIPE:
2643 /* Seen only when opening a capture file for writing. */
2644 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2645 "The file \"%%s\" is a pipe, and \"%s\" capture files can't be "
2646 "written to a pipe.", ftap_file_type_subtype_short_string(file_type));
2647 errmsg = errmsg_errno;
2650 case FTAP_ERR_UNSUPPORTED_FILE_TYPE:
2651 /* Seen only when opening a capture file for writing. */
2652 errmsg = "TFShark doesn't support writing capture files in that format.";
2655 case FTAP_ERR_UNSUPPORTED_ENCAP:
2657 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2658 "TFShark can't save this capture as a \"%s\" file.",
2659 ftap_file_type_subtype_short_string(file_type));
2661 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2662 "The file \"%%s\" is a capture for a network type that TFShark doesn't support.\n"
2666 errmsg = errmsg_errno;
2669 case FTAP_ERR_ENCAP_PER_RECORD_UNSUPPORTED:
2671 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2672 "TFShark can't save this capture as a \"%s\" file.",
2673 ftap_file_type_subtype_short_string(file_type));
2674 errmsg = errmsg_errno;
2676 errmsg = "The file \"%s\" is a capture for a network type that TFShark doesn't support.";
2679 case FTAP_ERR_BAD_FILE:
2680 /* Seen only when opening a capture file for reading. */
2681 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2682 "The file \"%%s\" appears to be damaged or corrupt.\n"
2685 errmsg = errmsg_errno;
2688 case FTAP_ERR_CANT_OPEN:
2690 errmsg = "The file \"%s\" could not be created for some unknown reason.";
2692 errmsg = "The file \"%s\" could not be opened for some unknown reason.";
2695 case FTAP_ERR_SHORT_READ:
2696 errmsg = "The file \"%s\" appears to have been cut short"
2697 " in the middle of a packet or other data.";
2700 case FTAP_ERR_SHORT_WRITE:
2701 errmsg = "A full header couldn't be written to the file \"%s\".";
2704 case FTAP_ERR_COMPRESSION_NOT_SUPPORTED:
2705 errmsg = "This file type cannot be written as a compressed file.";
2708 case FTAP_ERR_DECOMPRESS:
2709 /* Seen only when opening a capture file for reading. */
2710 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2711 "The compressed file \"%%s\" appears to be damaged or corrupt.\n"
2714 errmsg = errmsg_errno;
2718 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2719 "The file \"%%s\" could not be %s: %s.",
2720 for_writing ? "created" : "opened",
2721 ftap_strerror(err));
2722 errmsg = errmsg_errno;
2726 errmsg = file_open_error_message(err, for_writing);
2731 * Open/create errors are reported with an console message in TFShark.
2734 open_failure_message(const char *filename, int err, gboolean for_writing)
2736 fprintf(stderr, "tfshark: ");
2737 fprintf(stderr, file_open_error_message(err, for_writing), filename);
2738 fprintf(stderr, "\n");
2743 * General errors are reported with an console message in TFShark.
2746 failure_message(const char *msg_format, va_list ap)
2748 fprintf(stderr, "tfshark: ");
2749 vfprintf(stderr, msg_format, ap);
2750 fprintf(stderr, "\n");
2754 * Read errors are reported with an console message in TFShark.
2757 read_failure_message(const char *filename, int err)
2759 cmdarg_err("An error occurred while reading from the file \"%s\": %s.",
2760 filename, g_strerror(err));
2764 * Write errors are reported with an console message in TFShark.
2767 write_failure_message(const char *filename, int err)
2769 cmdarg_err("An error occurred while writing to the file \"%s\": %s.",
2770 filename, g_strerror(err));
2774 * Report additional information for an error in command-line arguments.
2777 failure_message_cont(const char *msg_format, va_list ap)
2779 vfprintf(stderr, msg_format, ap);
2780 fprintf(stderr, "\n");
2784 * Editor modelines - http://www.wireshark.org/tools/modelines.html
2789 * indent-tabs-mode: nil
2792 * vi: set shiftwidth=2 tabstop=8 expandtab:
2793 * :indentSize=2:tabSize=8:noTabs=true: