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.
46 #ifdef HAVE_SYS_STAT_H
47 # include <sys/stat.h>
51 #include <zlib.h> /* to get the libz version number */
54 #ifndef HAVE_GETOPT_LONG
55 #include "wsutil/wsgetopt.h"
60 #include <epan/exceptions.h>
61 #include <epan/epan-int.h>
62 #include <epan/epan.h>
64 #include <wsutil/clopts_common.h>
65 #include <wsutil/cmdarg_err.h>
66 #include <wsutil/crash_info.h>
67 #include <wsutil/filesystem.h>
68 #include <wsutil/file_util.h>
69 #include <wsutil/privileges.h>
70 #include <wsutil/report_err.h>
71 #include <wsutil/ws_diag_control.h>
72 #include <wsutil/ws_version_info.h>
75 #include <epan/timestamp.h>
76 #include <epan/packet.h>
78 #include <epan/wslua/init_wslua.h>
81 #include "frame_tvbuff.h"
82 #include <epan/disabled_protos.h>
83 #include <epan/prefs.h>
84 #include <epan/column.h>
85 #include <epan/print.h>
86 #include <epan/addr_resolv.h>
89 #include <epan/epan_dissect.h>
91 #include <epan/stat_tap_ui.h>
92 #include <epan/ex-opt.h>
94 #if defined(HAVE_HEIMDAL_KERBEROS) || defined(HAVE_MIT_KERBEROS)
95 #include <epan/asn1.h>
96 #include <epan/dissectors/packet-kerberos.h>
99 #include <wiretap/wtap-int.h>
100 #include <wiretap/file_wrappers.h>
103 #include <wsutil/unicode-utils.h>
107 #include <epan/funnel.h>
110 #include <wsutil/plugins.h>
114 * This is the template for the decode as option; it is shared between the
115 * various functions that output the usage for this parameter.
117 static const gchar decode_as_arg_template[] = "<layer_type>==<selector>,<decode_as_protocol>";
119 static guint32 cum_bytes;
120 static const frame_data *ref;
121 static frame_data ref_frame;
122 static frame_data *prev_dis;
123 static frame_data prev_dis_frame;
124 static frame_data *prev_cap;
125 static frame_data prev_cap_frame;
127 static const char* prev_display_dissector_name = NULL;
129 static gboolean perform_two_pass_analysis;
132 * The way the packet decode is to be written.
135 WRITE_TEXT, /* summary or detail text */
136 WRITE_XML, /* PDML or PSML */
137 WRITE_FIELDS /* User defined list of fields */
138 /* Add CSV and the like here */
141 static output_action_e output_action;
142 static gboolean do_dissection; /* TRUE if we have to dissect each packet */
143 static gboolean print_packet_info; /* TRUE if we're to print packet information */
144 static gint print_summary = -1; /* TRUE if we're to print packet summary information */
145 static gboolean print_details; /* TRUE if we're to print packet details information */
146 static gboolean print_hex; /* TRUE if we're to print hex/ascci information */
147 static gboolean line_buffered;
148 static gboolean really_quiet = FALSE;
150 static print_format_e print_format = PR_FMT_TEXT;
151 static print_stream_t *print_stream;
153 static output_fields_t* output_fields = NULL;
155 /* The line separator used between packets, changeable via the -S option */
156 static const char *separator = "";
158 static int load_cap_file(capture_file *, int, gint64);
159 static gboolean process_packet(capture_file *cf, epan_dissect_t *edt, gint64 offset,
160 struct wtap_pkthdr *whdr, const guchar *pd, guint tap_flags);
161 static void show_print_file_io_error(int err);
162 static gboolean write_preamble(capture_file *cf);
163 static gboolean print_packet(capture_file *cf, epan_dissect_t *edt);
164 static gboolean write_finale(void);
165 static const char *cf_open_error_message(int err, gchar *err_info,
166 gboolean for_writing, int file_type);
168 static void open_failure_message(const char *filename, int err,
169 gboolean for_writing);
170 static void failure_message(const char *msg_format, va_list ap);
171 static void read_failure_message(const char *filename, int err);
172 static void write_failure_message(const char *filename, int err);
173 static void failure_message_cont(const char *msg_format, va_list ap);
177 static GHashTable *output_only_tables = NULL;
181 const char *sstr; /* The short string */
182 const char *lstr; /* The long string */
186 string_compare(gconstpointer a, gconstpointer b)
188 return strcmp(((const struct string_elem *)a)->sstr,
189 ((const struct string_elem *)b)->sstr);
193 string_elem_print(gpointer data, gpointer not_used _U_)
195 fprintf(stderr, " %s - %s\n",
196 ((struct string_elem *)data)->sstr,
197 ((struct string_elem *)data)->lstr);
202 print_usage(FILE *output)
204 fprintf(output, "\n");
205 fprintf(output, "Usage: tfshark [options] ...\n");
206 fprintf(output, "\n");
208 /*fprintf(output, "\n");*/
209 fprintf(output, "Input file:\n");
210 fprintf(output, " -r <infile> set the filename to read from (no pipes or stdin!)\n");
212 fprintf(output, "\n");
213 fprintf(output, "Processing:\n");
214 fprintf(output, " -2 perform a two-pass analysis\n");
215 fprintf(output, " -R <read filter> packet Read filter in Wireshark display filter syntax\n");
216 fprintf(output, " -Y <display filter> packet displaY filter in Wireshark display filter\n");
217 fprintf(output, " syntax\n");
218 fprintf(output, " -d %s ...\n", decode_as_arg_template);
219 fprintf(output, " \"Decode As\", see the man page for details\n");
220 fprintf(output, " Example: tcp.port==8888,http\n");
222 /*fprintf(output, "\n");*/
223 fprintf(output, "Output:\n");
224 fprintf(output, " -C <config profile> start with specified configuration profile\n");
225 fprintf(output, " -V add output of packet tree (Packet Details)\n");
226 fprintf(output, " -O <protocols> Only show packet details of these protocols, comma\n");
227 fprintf(output, " separated\n");
228 fprintf(output, " -S <separator> the line separator to print between packets\n");
229 fprintf(output, " -x add output of hex and ASCII dump (Packet Bytes)\n");
230 fprintf(output, " -T pdml|ps|psml|text|fields\n");
231 fprintf(output, " format of text output (def: text)\n");
232 fprintf(output, " -e <field> field to print if -Tfields selected (e.g. tcp.port,\n");
233 fprintf(output, " _ws.col.Info)\n");
234 fprintf(output, " this option can be repeated to print multiple fields\n");
235 fprintf(output, " -E<fieldsoption>=<value> set options for output when -Tfields selected:\n");
236 fprintf(output, " header=y|n switch headers on and off\n");
237 fprintf(output, " separator=/t|/s|<char> select tab, space, printable character as separator\n");
238 fprintf(output, " occurrence=f|l|a print first, last or all occurrences of each field\n");
239 fprintf(output, " aggregator=,|/s|<char> select comma, space, printable character as\n");
240 fprintf(output, " aggregator\n");
241 fprintf(output, " quote=d|s|n select double, single, no quotes for values\n");
242 fprintf(output, " -t a|ad|d|dd|e|r|u|ud output format of time stamps (def: r: rel. to first)\n");
243 fprintf(output, " -u s|hms output format of seconds (def: s: seconds)\n");
244 fprintf(output, " -l flush standard output after each packet\n");
245 fprintf(output, " -q be more quiet on stdout (e.g. when using statistics)\n");
246 fprintf(output, " -Q only log true errors to stderr (quieter than -q)\n");
247 fprintf(output, " -X <key>:<value> eXtension options, see the man page for details\n");
248 fprintf(output, " -z <statistics> various statistics, see the man page for details\n");
250 fprintf(output, "\n");
251 fprintf(output, "Miscellaneous:\n");
252 fprintf(output, " -h display this help and exit\n");
253 fprintf(output, " -v display version info and exit\n");
254 fprintf(output, " -o <name>:<value> ... override preference setting\n");
255 fprintf(output, " -K <keytab> keytab file to use for kerberos decryption\n");
256 fprintf(output, " -G [report] dump one of several available reports and exit\n");
257 fprintf(output, " default report=\"fields\"\n");
258 fprintf(output, " use \"-G ?\" for more help\n");
262 glossary_option_help(void)
268 fprintf(output, "TFShark (Wireshark) %s\n", get_ws_vcs_version_info());
270 fprintf(output, "\n");
271 fprintf(output, "Usage: tfshark -G [report]\n");
272 fprintf(output, "\n");
273 fprintf(output, "Glossary table reports:\n");
274 fprintf(output, " -G column-formats dump column format codes and exit\n");
275 fprintf(output, " -G decodes dump \"layer type\"/\"decode as\" associations and exit\n");
276 fprintf(output, " -G dissector-tables dump dissector table names, types, and properties\n");
277 fprintf(output, " -G fields dump fields glossary and exit\n");
278 fprintf(output, " -G ftypes dump field type basic and descriptive names\n");
279 fprintf(output, " -G heuristic-decodes dump heuristic dissector tables\n");
280 fprintf(output, " -G plugins dump installed plugins and exit\n");
281 fprintf(output, " -G protocols dump protocols in registration database and exit\n");
282 fprintf(output, " -G values dump value, range, true/false strings and exit\n");
283 fprintf(output, "\n");
284 fprintf(output, "Preference reports:\n");
285 fprintf(output, " -G currentprefs dump current preferences and exit\n");
286 fprintf(output, " -G defaultprefs dump default preferences and exit\n");
287 fprintf(output, "\n");
291 * For a dissector table, print on the stream described by output,
292 * its short name (which is what's used in the "-d" option) and its
296 display_dissector_table_names(const char *table_name, const char *ui_name,
299 if ((prev_display_dissector_name == NULL) ||
300 (strcmp(prev_display_dissector_name, table_name) != 0)) {
301 fprintf((FILE *)output, "\t%s (%s)\n", table_name, ui_name);
302 prev_display_dissector_name = table_name;
307 * For a dissector handle, print on the stream described by output,
308 * the filter name (which is what's used in the "-d" option) and the full
309 * name for the protocol that corresponds to this handle.
312 display_dissector_names(const gchar *table _U_, gpointer handle, gpointer output)
315 const gchar *proto_filter_name;
316 const gchar *proto_ui_name;
318 proto_id = dissector_handle_get_protocol_index((dissector_handle_t)handle);
320 if (proto_id != -1) {
321 proto_filter_name = proto_get_protocol_filter_name(proto_id);
322 proto_ui_name = proto_get_protocol_name(proto_id);
323 g_assert(proto_filter_name != NULL);
324 g_assert(proto_ui_name != NULL);
326 if ((prev_display_dissector_name == NULL) ||
327 (strcmp(prev_display_dissector_name, proto_filter_name) != 0)) {
328 fprintf((FILE *)output, "\t%s (%s)\n",
331 prev_display_dissector_name = proto_filter_name;
337 * The protocol_name_search structure is used by find_protocol_name_func()
338 * to pass parameters and store results
340 struct protocol_name_search{
341 gchar *searched_name; /* Protocol filter name we are looking for */
342 dissector_handle_t matched_handle; /* Handle for a dissector whose protocol has the specified filter name */
343 guint nb_match; /* How many dissectors matched searched_name */
345 typedef struct protocol_name_search *protocol_name_search_t;
348 * This function parses all dissectors associated with a table to find the
349 * one whose protocol has the specified filter name. It is called
350 * as a reference function in a call to dissector_table_foreach_handle.
351 * The name we are looking for, as well as the results, are stored in the
352 * protocol_name_search struct pointed to by user_data.
353 * If called using dissector_table_foreach_handle, we actually parse the
354 * whole list of dissectors.
357 find_protocol_name_func(const gchar *table _U_, gpointer handle, gpointer user_data)
361 const gchar *protocol_filter_name;
362 protocol_name_search_t search_info;
366 search_info = (protocol_name_search_t)user_data;
368 proto_id = dissector_handle_get_protocol_index((dissector_handle_t)handle);
369 if (proto_id != -1) {
370 protocol_filter_name = proto_get_protocol_filter_name(proto_id);
371 g_assert(protocol_filter_name != NULL);
372 if (strcmp(protocol_filter_name, search_info->searched_name) == 0) {
374 if (search_info->nb_match == 0) {
375 /* Record this handle only if this is the first match */
376 search_info->matched_handle = (dissector_handle_t)handle; /* Record the handle for this matching dissector */
378 search_info->nb_match++;
384 * Allow dissector key names to be sorted alphabetically
388 compare_dissector_key_name(gconstpointer dissector_a, gconstpointer dissector_b)
390 return strcmp((const char*)dissector_a, (const char*)dissector_b);
394 * Print all layer type names supported.
395 * We send the output to the stream described by the handle output.
399 fprint_all_layer_types(FILE *output)
402 prev_display_dissector_name = NULL;
403 dissector_all_tables_foreach_table(display_dissector_table_names, (gpointer)output, (GCompareFunc)compare_dissector_key_name);
407 * Print all protocol names supported for a specific layer type.
408 * table_name contains the layer type name in which the search is performed.
409 * We send the output to the stream described by the handle output.
413 fprint_all_protocols_for_layer_types(FILE *output, gchar *table_name)
416 prev_display_dissector_name = NULL;
417 dissector_table_foreach_handle(table_name,
418 display_dissector_names,
423 * The function below parses the command-line parameters for the decode as
424 * feature (a string pointer by cl_param).
425 * It checks the format of the command-line, searches for a matching table
426 * and dissector. If a table/dissector match is not found, we display a
427 * summary of the available tables/dissectors (on stderr) and return FALSE.
428 * If everything is fine, we get the "Decode as" preference activated,
429 * then we return TRUE.
432 add_decode_as(const gchar *cl_param)
435 guint32 selector, selector2;
436 gchar *decoded_param;
437 gchar *remaining_param;
439 gchar *dissector_str;
440 dissector_handle_t dissector_matching;
441 dissector_table_t table_matching;
442 ftenum_t dissector_table_selector_type;
443 struct protocol_name_search user_protocol_name;
447 /* The following code will allocate and copy the command-line options in a string pointed by decoded_param */
450 decoded_param = g_strdup(cl_param);
451 g_assert(decoded_param);
454 /* The lines below will parse this string (modifying it) to extract all
455 necessary information. Note that decoded_param is still needed since
456 strings are not copied - we just save pointers. */
458 /* This section extracts a layer type (table_name) from decoded_param */
459 table_name = decoded_param; /* Layer type string starts from beginning */
461 remaining_param = strchr(table_name, '=');
462 if (remaining_param == NULL) {
463 cmdarg_err("Parameter \"%s\" doesn't follow the template \"%s\"", cl_param, decode_as_arg_template);
464 /* If the argument does not follow the template, carry on anyway to check
465 if the table name is at least correct. If remaining_param is NULL,
466 we'll exit anyway further down */
469 *remaining_param = '\0'; /* Terminate the layer type string (table_name) where '=' was detected */
472 /* Remove leading and trailing spaces from the table name */
473 while ( table_name[0] == ' ' )
475 while ( table_name[strlen(table_name) - 1] == ' ' )
476 table_name[strlen(table_name) - 1] = '\0'; /* Note: if empty string, while loop will eventually exit */
478 /* The following part searches a table matching with the layer type specified */
479 table_matching = NULL;
481 /* Look for the requested table */
482 if ( !(*(table_name)) ) { /* Is the table name empty, if so, don't even search for anything, display a message */
483 cmdarg_err("No layer type specified"); /* Note, we don't exit here, but table_matching will remain NULL, so we exit below */
486 table_matching = find_dissector_table(table_name);
487 if (!table_matching) {
488 cmdarg_err("Unknown layer type -- %s", table_name); /* Note, we don't exit here, but table_matching will remain NULL, so we exit below */
492 if (!table_matching) {
493 /* Display a list of supported layer types to help the user, if the
494 specified layer type was not found */
495 cmdarg_err("Valid layer types are:");
496 fprint_all_layer_types(stderr);
498 if (remaining_param == NULL || !table_matching) {
499 /* Exit if the layer type was not found, or if no '=' separator was found
501 g_free(decoded_param);
505 if (*(remaining_param + 1) != '=') { /* Check for "==" and not only '=' */
506 cmdarg_err("WARNING: -d requires \"==\" instead of \"=\". Option will be treated as \"%s==%s\"", table_name, remaining_param + 1);
509 remaining_param++; /* Move to the second '=' */
510 *remaining_param = '\0'; /* Remove the second '=' */
512 remaining_param++; /* Position after the layer type string */
514 /* This section extracts a selector value (selector_str) from decoded_param */
516 selector_str = remaining_param; /* Next part starts with the selector number */
518 remaining_param = strchr(selector_str, ',');
519 if (remaining_param == NULL) {
520 cmdarg_err("Parameter \"%s\" doesn't follow the template \"%s\"", cl_param, decode_as_arg_template);
521 /* If the argument does not follow the template, carry on anyway to check
522 if the selector value is at least correct. If remaining_param is NULL,
523 we'll exit anyway further down */
526 *remaining_param = '\0'; /* Terminate the selector number string (selector_str) where ',' was detected */
529 dissector_table_selector_type = get_dissector_table_selector_type(table_name);
531 switch (dissector_table_selector_type) {
537 /* The selector for this table is an unsigned number. Parse it as such.
538 There's no need to remove leading and trailing spaces from the
539 selector number string, because sscanf will do that for us. */
540 switch (sscanf(selector_str, "%u%c%u", &selector, &op, &selector2)) {
545 if (op != ':' && op != '-') {
546 cmdarg_err("Invalid selector numeric range \"%s\"", selector_str);
547 g_free(decoded_param);
551 if ((selector2 == 0) || ((guint64)selector + selector2 - 1) > G_MAXUINT32) {
552 cmdarg_err("Invalid selector numeric range \"%s\"", selector_str);
553 g_free(decoded_param);
557 else if (selector2 < selector) {
558 /* We could swap them for the user, but maybe it's better to call
559 * this out as an error in case it's not what was intended? */
560 cmdarg_err("Invalid selector numeric range \"%s\"", selector_str);
561 g_free(decoded_param);
566 cmdarg_err("Invalid selector number \"%s\"", selector_str);
567 g_free(decoded_param);
576 /* The selector for this table is a string. */
580 /* There are currently no dissector tables with any types other
581 than the ones listed above. */
582 g_assert_not_reached();
585 if (remaining_param == NULL) {
586 /* Exit if no ',' separator was found (see above) */
587 cmdarg_err("Valid protocols for layer type \"%s\" are:", table_name);
588 fprint_all_protocols_for_layer_types(stderr, table_name);
589 g_free(decoded_param);
593 remaining_param++; /* Position after the selector number string */
595 /* This section extracts a protocol filter name (dissector_str) from decoded_param */
597 dissector_str = remaining_param; /* All the rest of the string is the dissector (decode as protocol) name */
599 /* Remove leading and trailing spaces from the dissector name */
600 while ( dissector_str[0] == ' ' )
602 while ( dissector_str[strlen(dissector_str) - 1] == ' ' )
603 dissector_str[strlen(dissector_str) - 1] = '\0'; /* Note: if empty string, while loop will eventually exit */
605 dissector_matching = NULL;
607 /* We now have a pointer to the handle for the requested table inside the variable table_matching */
608 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 */
609 cmdarg_err("No protocol name specified"); /* Note, we don't exit here, but dissector_matching will remain NULL, so we exit below */
612 user_protocol_name.nb_match = 0;
613 user_protocol_name.searched_name = dissector_str;
614 user_protocol_name.matched_handle = NULL;
616 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 */
618 if (user_protocol_name.nb_match != 0) {
619 dissector_matching = user_protocol_name.matched_handle;
620 if (user_protocol_name.nb_match > 1) {
621 cmdarg_err("WARNING: Protocol \"%s\" matched %u dissectors, first one will be used", dissector_str, user_protocol_name.nb_match);
625 /* OK, check whether the problem is that there isn't any such
626 protocol, or that there is but it's not specified as a protocol
627 that's valid for that dissector table.
628 Note, we don't exit here, but dissector_matching will remain NULL,
630 if (proto_get_id_by_filter_name(dissector_str) == -1) {
631 /* No such protocol */
632 cmdarg_err("Unknown protocol -- \"%s\"", dissector_str);
634 cmdarg_err("Protocol \"%s\" isn't valid for layer type \"%s\"",
635 dissector_str, table_name);
640 if (!dissector_matching) {
641 cmdarg_err("Valid protocols for layer type \"%s\" are:", table_name);
642 fprint_all_protocols_for_layer_types(stderr, table_name);
643 g_free(decoded_param);
647 /* This is the end of the code that parses the command-line options.
648 All information is now stored in the variables:
652 The above variables that are strings are still pointing to areas within
653 decoded_parm. decoded_parm thus still needs to be kept allocated in
654 until we stop needing these variables
655 decoded_param will be deallocated at each exit point of this function */
658 /* We now have a pointer to the handle for the requested dissector
659 (requested protocol) inside the variable dissector_matching */
660 switch (dissector_table_selector_type) {
666 /* The selector for this table is an unsigned number. */
668 dissector_change_uint(table_name, selector, dissector_matching);
669 } else if (op == ':') {
670 for (i = selector; i < (guint64)selector + selector2; i++) {
671 dissector_change_uint(table_name, (guint32)i, dissector_matching);
673 } else { /* op == '-' */
674 for (i = selector; i <= selector2; i++) {
675 dissector_change_uint(table_name, (guint32)i, dissector_matching);
684 /* The selector for this table is a string. */
685 dissector_change_string(table_name, selector_str, dissector_matching);
689 /* There are currently no dissector tables with any types other
690 than the ones listed above. */
691 g_assert_not_reached();
693 g_free(decoded_param); /* "Decode As" rule has been successfully added */
698 tfshark_log_handler (const gchar *log_domain, GLogLevelFlags log_level,
699 const gchar *message, gpointer user_data)
701 /* ignore log message, if log_level isn't interesting based
702 upon the console log preferences.
703 If the preferences haven't been loaded loaded yet, display the
706 The default console_log_level preference value is such that only
707 ERROR, CRITICAL and WARNING level messages are processed;
708 MESSAGE, INFO and DEBUG level messages are ignored.
710 XXX: Aug 07, 2009: Prior tshark g_log code was hardwired to process only
711 ERROR and CRITICAL level messages so the current code is a behavioral
712 change. The current behavior is the same as in Wireshark.
714 if ((log_level & G_LOG_LEVEL_MASK & prefs.console_log_level) == 0 &&
715 prefs.console_log_level != 0) {
719 g_log_default_handler(log_domain, log_level, message, user_data);
724 print_current_user(void) {
725 gchar *cur_user, *cur_group;
727 if (started_with_special_privs()) {
728 cur_user = get_cur_username();
729 cur_group = get_cur_groupname();
730 fprintf(stderr, "Running as user \"%s\" and group \"%s\".",
731 cur_user, cur_group);
734 if (running_with_special_privs()) {
735 fprintf(stderr, " This could be dangerous.");
737 fprintf(stderr, "\n");
742 get_tfshark_compiled_version_info(GString *str)
746 g_string_append(str, "with libz ");
748 g_string_append(str, ZLIB_VERSION);
749 #else /* ZLIB_VERSION */
750 g_string_append(str, "(version unknown)");
751 #endif /* ZLIB_VERSION */
752 #else /* HAVE_LIBZ */
753 g_string_append(str, "without libz");
754 #endif /* HAVE_LIBZ */
758 get_tfshark_runtime_version_info(GString *str)
761 #if defined(HAVE_LIBZ) && !defined(_WIN32)
762 g_string_append_printf(str, ", with libz %s", zlibVersion());
765 /* stuff used by libwireshark */
766 epan_get_runtime_version_info(str);
770 main(int argc, char *argv[])
772 GString *comp_info_str;
773 GString *runtime_info_str;
774 char *init_progfile_dir_error;
777 static const struct option long_options[] = {
778 {(char *)"help", no_argument, NULL, 'h'},
779 {(char *)"version", no_argument, NULL, 'v'},
783 gboolean arg_error = FALSE;
785 char *gpf_path, *pf_path;
786 char *gdp_path, *dp_path;
787 int gpf_open_errno, gpf_read_errno;
788 int pf_open_errno, pf_read_errno;
789 int gdp_open_errno, gdp_read_errno;
790 int dp_open_errno, dp_read_errno;
792 volatile int exit_status = 0;
793 gboolean quiet = FALSE;
794 gchar *volatile cf_name = NULL;
795 gchar *rfilter = NULL;
796 gchar *dfilter = NULL;
797 dfilter_t *rfcode = NULL;
798 dfilter_t *dfcode = NULL;
802 gchar *output_only = NULL;
805 * The leading + ensures that getopt_long() does not permute the argv[]
808 * We have to make sure that the first getopt_long() preserves the content
809 * of argv[] for the subsequent getopt_long() call.
811 * We use getopt_long() in both cases to ensure that we're using a routine
812 * whose permutation behavior we can control in the same fashion on all
813 * platforms, and so that, if we ever need to process a long argument before
814 * doing further initialization, we can do so.
816 * Glibc and Solaris libc document that a leading + disables permutation
817 * of options, regardless of whether POSIXLY_CORRECT is set or not; *BSD
818 * and OS X don't document it, but do so anyway.
820 * We do *not* use a leading - because the behavior of a leading - is
821 * platform-dependent.
823 #define OPTSTRING "+2C:d:e:E:hK:lo:O:qQr:R:S:t:T:u:vVxX:Y:z:"
825 static const char optstring[] = OPTSTRING;
827 /* Set the C-language locale to the native environment. */
828 setlocale(LC_ALL, "");
830 cmdarg_err_init(failure_message, failure_message_cont);
833 arg_list_utf_16to8(argc, argv);
834 create_app_running_mutex();
835 #if !GLIB_CHECK_VERSION(2,31,0)
841 * Get credential information for later use, and drop privileges
842 * before doing anything else.
843 * Let the user know if anything happened.
845 init_process_policies();
846 relinquish_special_privs_perm();
847 print_current_user();
850 * Attempt to get the pathname of the executable file.
852 init_progfile_dir_error = init_progfile_dir(argv[0], (void *)main);
853 if (init_progfile_dir_error != NULL) {
854 fprintf(stderr, "tfshark: Can't get pathname of tfshark program: %s.\n",
855 init_progfile_dir_error);
858 initialize_funnel_ops();
860 /* Get the compile-time version information string */
861 comp_info_str = get_compiled_version_info(get_tfshark_compiled_version_info,
862 epan_get_compiled_version_info);
864 /* Get the run-time version information string */
865 runtime_info_str = get_runtime_version_info(get_tfshark_runtime_version_info);
867 /* Add it to the information to be reported on a crash. */
868 ws_add_crash_info("TFShark (Wireshark) %s\n"
873 get_ws_vcs_version_info(), comp_info_str->str, runtime_info_str->str);
876 * In order to have the -X opts assigned before the wslua machine starts
877 * we need to call getopts before epan_init() gets called.
879 * In order to handle, for example, -o options, we also need to call it
880 * *after* epan_init() gets called, so that the dissectors have had a
881 * chance to register their preferences.
883 * XXX - can we do this all with one getopt_long() call, saving the
884 * arguments we can't handle until after initializing libwireshark,
885 * and then process them after initializing libwireshark?
889 while ((opt = getopt_long(argc, argv, optstring, long_options, NULL)) != -1) {
891 case 'C': /* Configuration Profile */
892 if (profile_exists (optarg, FALSE)) {
893 set_profile_name (optarg);
895 cmdarg_err("Configuration Profile \"%s\" does not exist", optarg);
899 case 'O': /* Only output these protocols */
900 output_only = g_strdup(optarg);
902 case 'V': /* Verbose */
903 print_details = TRUE;
904 print_packet_info = TRUE;
906 case 'x': /* Print packet data in hex (and ASCII) */
908 /* The user asked for hex output, so let's ensure they get it,
909 * even if they're writing to a file.
911 print_packet_info = TRUE;
922 * Print packet summary information is the default, unless either -V or -x
923 * were specified. Note that this is new behavior, which
924 * allows for the possibility of printing only hex/ascii output without
925 * necessarily requiring that either the summary or details be printed too.
927 if (print_summary == -1)
928 print_summary = (print_details || print_hex) ? FALSE : TRUE;
930 /** Send All g_log messages to our own handler **/
934 G_LOG_LEVEL_CRITICAL|
939 G_LOG_FLAG_FATAL|G_LOG_FLAG_RECURSION;
941 g_log_set_handler(NULL,
942 (GLogLevelFlags)log_flags,
943 tfshark_log_handler, NULL /* user_data */);
944 g_log_set_handler(LOG_DOMAIN_MAIN,
945 (GLogLevelFlags)log_flags,
946 tfshark_log_handler, NULL /* user_data */);
948 init_report_err(failure_message, open_failure_message, read_failure_message,
949 write_failure_message);
951 timestamp_set_type(TS_RELATIVE);
952 timestamp_set_precision(TS_PREC_AUTO);
953 timestamp_set_seconds_type(TS_SECONDS_DEFAULT);
955 init_open_routines();
958 /* Register all the plugin types we have. */
959 epan_register_plugin_types(); /* Types known to libwireshark */
961 /* Scan for plugins. This does *not* call their registration routines;
962 that's done later. */
967 /* Register all dissectors; we must do this before checking for the
968 "-G" flag, as the "-G" flag dumps information registered by the
969 dissectors, and we must do it before we read the preferences, in
970 case any dissectors register preferences. */
971 if (!epan_init(register_all_protocols, register_all_protocol_handoffs, NULL,
975 /* Register all tap listeners; we do this before we parse the arguments,
976 as the "-z" argument can specify a registered tap. */
978 /* we register the plugin taps before the other taps because
979 stats_tree taps plugins will be registered as tap listeners
980 by stats_tree_stat.c and need to registered before that */
982 /* XXX Disable tap registration for now until we can get tfshark set up with
983 * its own set of taps and the necessary registration function etc.
985 register_all_plugin_tap_listeners();
987 register_all_tap_listeners();
990 /* If invoked with the "-G" flag, we dump out information based on
991 the argument to the "-G" flag; if no argument is specified,
992 for backwards compatibility we dump out a glossary of display
995 XXX - we do this here, for now, to support "-G" with no arguments.
996 If none of our build or other processes uses "-G" with no arguments,
997 we can just process it with the other arguments. */
998 if (argc >= 2 && strcmp(argv[1], "-G") == 0) {
999 proto_initialize_all_prefixes();
1002 proto_registrar_dump_fields();
1004 if (strcmp(argv[2], "column-formats") == 0)
1005 column_dump_column_formats();
1006 else if (strcmp(argv[2], "currentprefs") == 0) {
1007 read_prefs(&gpf_open_errno, &gpf_read_errno, &gpf_path,
1008 &pf_open_errno, &pf_read_errno, &pf_path);
1011 else if (strcmp(argv[2], "decodes") == 0)
1012 dissector_dump_decodes();
1013 else if (strcmp(argv[2], "defaultprefs") == 0)
1015 else if (strcmp(argv[2], "dissector-tables") == 0)
1016 dissector_dump_dissector_tables();
1017 else if (strcmp(argv[2], "fields") == 0)
1018 proto_registrar_dump_fields();
1019 else if (strcmp(argv[2], "ftypes") == 0)
1020 proto_registrar_dump_ftypes();
1021 else if (strcmp(argv[2], "heuristic-decodes") == 0)
1022 dissector_dump_heur_decodes();
1023 else if (strcmp(argv[2], "plugins") == 0) {
1028 wslua_plugins_dump_all();
1031 else if (strcmp(argv[2], "protocols") == 0)
1032 proto_registrar_dump_protocols();
1033 else if (strcmp(argv[2], "values") == 0)
1034 proto_registrar_dump_values();
1035 else if (strcmp(argv[2], "?") == 0)
1036 glossary_option_help();
1037 else if (strcmp(argv[2], "-?") == 0)
1038 glossary_option_help();
1040 cmdarg_err("Invalid \"%s\" option for -G flag, enter -G ? for more help.", argv[2]);
1047 prefs_p = read_prefs(&gpf_open_errno, &gpf_read_errno, &gpf_path,
1048 &pf_open_errno, &pf_read_errno, &pf_path);
1049 if (gpf_path != NULL) {
1050 if (gpf_open_errno != 0) {
1051 cmdarg_err("Can't open global preferences file \"%s\": %s.",
1052 pf_path, g_strerror(gpf_open_errno));
1054 if (gpf_read_errno != 0) {
1055 cmdarg_err("I/O error reading global preferences file \"%s\": %s.",
1056 pf_path, g_strerror(gpf_read_errno));
1059 if (pf_path != NULL) {
1060 if (pf_open_errno != 0) {
1061 cmdarg_err("Can't open your preferences file \"%s\": %s.", pf_path,
1062 g_strerror(pf_open_errno));
1064 if (pf_read_errno != 0) {
1065 cmdarg_err("I/O error reading your preferences file \"%s\": %s.",
1066 pf_path, g_strerror(pf_read_errno));
1072 /* Read the disabled protocols file. */
1073 read_disabled_protos_list(&gdp_path, &gdp_open_errno, &gdp_read_errno,
1074 &dp_path, &dp_open_errno, &dp_read_errno);
1075 read_disabled_heur_dissector_list(&gdp_path, &gdp_open_errno, &gdp_read_errno,
1076 &dp_path, &dp_open_errno, &dp_read_errno);
1077 if (gdp_path != NULL) {
1078 if (gdp_open_errno != 0) {
1079 cmdarg_err("Could not open global disabled protocols file\n\"%s\": %s.",
1080 gdp_path, g_strerror(gdp_open_errno));
1082 if (gdp_read_errno != 0) {
1083 cmdarg_err("I/O error reading global disabled protocols file\n\"%s\": %s.",
1084 gdp_path, g_strerror(gdp_read_errno));
1088 if (dp_path != NULL) {
1089 if (dp_open_errno != 0) {
1091 "Could not open your disabled protocols file\n\"%s\": %s.", dp_path,
1092 g_strerror(dp_open_errno));
1094 if (dp_read_errno != 0) {
1096 "I/O error reading your disabled protocols file\n\"%s\": %s.", dp_path,
1097 g_strerror(dp_read_errno));
1102 cap_file_init(&cfile);
1104 /* Print format defaults to this. */
1105 print_format = PR_FMT_TEXT;
1107 output_fields = output_fields_new();
1110 * To reset the options parser, set optreset to 1 on platforms that
1111 * have optreset (documented in *BSD and OS X, apparently present but
1112 * not documented in Solaris - the Illumos repository seems to
1113 * suggest that the first Solaris getopt_long(), at least as of 2004,
1114 * was based on the NetBSD one, it had optreset) and set optind to 1,
1115 * and set optind to 0 otherwise (documented as working in the GNU
1116 * getopt_long(). Setting optind to 0 didn't originally work in the
1117 * NetBSD one, but that was added later - we don't want to depend on
1118 * it if we have optreset).
1120 * Also reset opterr to 1, so that error messages are printed by
1123 #ifdef HAVE_OPTRESET
1131 /* Now get our args */
1132 while ((opt = getopt_long(argc, argv, optstring, long_options, NULL)) != -1) {
1134 case '2': /* Perform two pass analysis */
1135 perform_two_pass_analysis = TRUE;
1138 /* already processed; just ignore it now */
1140 case 'd': /* Decode as rule */
1141 if (!add_decode_as(optarg))
1144 #if defined(HAVE_HEIMDAL_KERBEROS) || defined(HAVE_MIT_KERBEROS)
1145 case 'K': /* Kerberos keytab file */
1146 read_keytab_file(optarg);
1151 output_fields_add(output_fields, optarg);
1155 if (!output_fields_set_option(output_fields, optarg)) {
1156 cmdarg_err("\"%s\" is not a valid field output option=value pair.", optarg);
1157 output_fields_list_options(stderr);
1162 case 'h': /* Print help and exit */
1163 printf("TFShark (Wireshark) %s\n"
1164 "Dump and analyze network traffic.\n"
1165 "See https://www.wireshark.org for more information.\n",
1166 get_ws_vcs_version_info());
1167 print_usage(stdout);
1170 case 'l': /* "Line-buffer" standard output */
1171 /* This isn't line-buffering, strictly speaking, it's just
1172 flushing the standard output after the information for
1173 each packet is printed; however, that should be good
1174 enough for all the purposes to which "-l" is put (and
1175 is probably actually better for "-V", as it does fewer
1178 See the comment in "process_packet()" for an explanation of
1179 why we do that, and why we don't just use "setvbuf()" to
1180 make the standard output line-buffered (short version: in
1181 Windows, "line-buffered" is the same as "fully-buffered",
1182 and the output buffer is only flushed when it fills up). */
1183 line_buffered = TRUE;
1185 case 'o': /* Override preference from command line */
1186 switch (prefs_set_pref(optarg)) {
1191 case PREFS_SET_SYNTAX_ERR:
1192 cmdarg_err("Invalid -o flag \"%s\"", optarg);
1196 case PREFS_SET_NO_SUCH_PREF:
1197 case PREFS_SET_OBSOLETE:
1198 cmdarg_err("-o flag \"%s\" specifies unknown preference", optarg);
1203 case 'q': /* Quiet */
1206 case 'Q': /* Really quiet */
1208 really_quiet = TRUE;
1210 case 'r': /* Read capture file x */
1211 cf_name = g_strdup(optarg);
1213 case 'R': /* Read file filter */
1216 case 'S': /* Set the line Separator to be printed between packets */
1217 separator = g_strdup(optarg);
1219 case 't': /* Time stamp type */
1220 if (strcmp(optarg, "r") == 0)
1221 timestamp_set_type(TS_RELATIVE);
1222 else if (strcmp(optarg, "a") == 0)
1223 timestamp_set_type(TS_ABSOLUTE);
1224 else if (strcmp(optarg, "ad") == 0)
1225 timestamp_set_type(TS_ABSOLUTE_WITH_YMD);
1226 else if (strcmp(optarg, "adoy") == 0)
1227 timestamp_set_type(TS_ABSOLUTE_WITH_YDOY);
1228 else if (strcmp(optarg, "d") == 0)
1229 timestamp_set_type(TS_DELTA);
1230 else if (strcmp(optarg, "dd") == 0)
1231 timestamp_set_type(TS_DELTA_DIS);
1232 else if (strcmp(optarg, "e") == 0)
1233 timestamp_set_type(TS_EPOCH);
1234 else if (strcmp(optarg, "u") == 0)
1235 timestamp_set_type(TS_UTC);
1236 else if (strcmp(optarg, "ud") == 0)
1237 timestamp_set_type(TS_UTC_WITH_YMD);
1238 else if (strcmp(optarg, "udoy") == 0)
1239 timestamp_set_type(TS_UTC_WITH_YDOY);
1241 cmdarg_err("Invalid time stamp type \"%s\"; it must be one of:", optarg);
1242 cmdarg_err_cont("\t\"a\" for absolute\n"
1243 "\t\"ad\" for absolute with YYYY-MM-DD date\n"
1244 "\t\"adoy\" for absolute with YYYY/DOY date\n"
1245 "\t\"d\" for delta\n"
1246 "\t\"dd\" for delta displayed\n"
1247 "\t\"e\" for epoch\n"
1248 "\t\"r\" for relative\n"
1249 "\t\"u\" for absolute UTC\n"
1250 "\t\"ud\" for absolute UTC with YYYY-MM-DD date\n"
1251 "\t\"udoy\" for absolute UTC with YYYY/DOY date");
1255 case 'T': /* printing Type */
1256 if (strcmp(optarg, "text") == 0) {
1257 output_action = WRITE_TEXT;
1258 print_format = PR_FMT_TEXT;
1259 } else if (strcmp(optarg, "ps") == 0) {
1260 output_action = WRITE_TEXT;
1261 print_format = PR_FMT_PS;
1262 } else if (strcmp(optarg, "pdml") == 0) {
1263 output_action = WRITE_XML;
1264 print_details = TRUE; /* Need details */
1265 print_summary = FALSE; /* Don't allow summary */
1266 } else if (strcmp(optarg, "psml") == 0) {
1267 output_action = WRITE_XML;
1268 print_details = FALSE; /* Don't allow details */
1269 print_summary = TRUE; /* Need summary */
1270 } else if (strcmp(optarg, "fields") == 0) {
1271 output_action = WRITE_FIELDS;
1272 print_details = TRUE; /* Need full tree info */
1273 print_summary = FALSE; /* Don't allow summary */
1275 cmdarg_err("Invalid -T parameter \"%s\"; it must be one of:", optarg); /* x */
1276 cmdarg_err_cont("\t\"fields\" The values of fields specified with the -e option, in a form\n"
1277 "\t specified by the -E option.\n"
1278 "\t\"pdml\" Packet Details Markup Language, an XML-based format for the\n"
1279 "\t details of a decoded packet. This information is equivalent to\n"
1280 "\t the packet details printed with the -V flag.\n"
1281 "\t\"ps\" PostScript for a human-readable one-line summary of each of\n"
1282 "\t the packets, or a multi-line view of the details of each of\n"
1283 "\t the packets, depending on whether the -V flag was specified.\n"
1284 "\t\"psml\" Packet Summary Markup Language, an XML-based format for the\n"
1285 "\t summary information of a decoded packet. This information is\n"
1286 "\t equivalent to the information shown in the one-line summary\n"
1287 "\t printed by default.\n"
1288 "\t\"text\" Text of a human-readable one-line summary of each of the\n"
1289 "\t packets, or a multi-line view of the details of each of the\n"
1290 "\t packets, depending on whether the -V flag was specified.\n"
1291 "\t This is the default.");
1295 case 'u': /* Seconds type */
1296 if (strcmp(optarg, "s") == 0)
1297 timestamp_set_seconds_type(TS_SECONDS_DEFAULT);
1298 else if (strcmp(optarg, "hms") == 0)
1299 timestamp_set_seconds_type(TS_SECONDS_HOUR_MIN_SEC);
1301 cmdarg_err("Invalid seconds type \"%s\"; it must be one of:", optarg);
1302 cmdarg_err_cont("\t\"s\" for seconds\n"
1303 "\t\"hms\" for hours, minutes and seconds");
1307 case 'v': /* Show version and exit */
1309 show_version("TFShark (Wireshark)", comp_info_str, runtime_info_str);
1310 g_string_free(comp_info_str, TRUE);
1311 g_string_free(runtime_info_str, TRUE);
1312 /* We don't really have to cleanup here, but it's a convenient way to test
1313 * start-up and shut-down of the epan library without any UI-specific
1314 * cruft getting in the way. Makes the results of running
1315 * $ ./tools/valgrind-wireshark -n
1316 * much more useful. */
1320 case 'O': /* Only output these protocols */
1321 /* already processed; just ignore it now */
1323 case 'V': /* Verbose */
1324 /* already processed; just ignore it now */
1326 case 'x': /* Print packet data in hex (and ASCII) */
1327 /* already processed; just ignore it now */
1330 /* already processed; just ignore it now */
1336 /* We won't call the init function for the stat this soon
1337 as it would disallow MATE's fields (which are registered
1338 by the preferences set callback) from being used as
1339 part of a tap filter. Instead, we just add the argument
1340 to a list of stat arguments. */
1341 if (strcmp("help", optarg) == 0) {
1342 fprintf(stderr, "tfshark: The available statistics for the \"-z\" option are:\n");
1343 list_stat_cmd_args();
1346 if (!process_stat_cmd_arg(optarg)) {
1347 cmdarg_err("Invalid -z argument \"%s\"; it must be one of:", optarg);
1348 list_stat_cmd_args();
1353 case '?': /* Bad flag - print usage message */
1354 print_usage(stderr);
1360 /* If we specified output fields, but not the output field type... */
1361 if (WRITE_FIELDS != output_action && 0 != output_fields_num_fields(output_fields)) {
1362 cmdarg_err("Output fields were specified with \"-e\", "
1363 "but \"-Tfields\" was not specified.");
1365 } else if (WRITE_FIELDS == output_action && 0 == output_fields_num_fields(output_fields)) {
1366 cmdarg_err("\"-Tfields\" was specified, but no fields were "
1367 "specified with \"-e\".");
1372 /* If no capture filter or display filter has been specified, and there are
1373 still command-line arguments, treat them as the tokens of a capture
1374 filter (if no "-r" flag was specified) or a display filter (if a "-r"
1375 flag was specified. */
1376 if (optind < argc) {
1377 if (cf_name != NULL) {
1378 if (dfilter != NULL) {
1379 cmdarg_err("Display filters were specified both with \"-d\" "
1380 "and with additional command-line arguments.");
1383 dfilter = get_args_as_string(argc, argv, optind);
1387 /* if "-q" wasn't specified, we should print packet information */
1389 print_packet_info = TRUE;
1392 print_usage(stderr);
1397 if (output_action != WRITE_TEXT) {
1398 cmdarg_err("Raw packet hex data can only be printed as text or PostScript");
1403 if (output_only != NULL) {
1406 if (!print_details) {
1407 cmdarg_err("-O requires -V");
1411 output_only_tables = g_hash_table_new (g_str_hash, g_str_equal);
1412 for (ps = strtok (output_only, ","); ps; ps = strtok (NULL, ",")) {
1413 g_hash_table_insert(output_only_tables, (gpointer)ps, (gpointer)ps);
1417 if (rfilter != NULL && !perform_two_pass_analysis) {
1418 cmdarg_err("-R without -2 is deprecated. For single-pass filtering use -Y.");
1422 /* Notify all registered modules that have had any of their preferences
1423 changed either from one of the preferences file or from the command
1424 line that their preferences have changed. */
1427 /* At this point MATE will have registered its field array so we can
1428 have a tap filter with one of MATE's late-registered fields as part
1429 of the filter. We can now process all the "-z" arguments. */
1430 start_requested_stats();
1432 /* disabled protocols as per configuration file */
1433 if (gdp_path == NULL && dp_path == NULL) {
1434 set_disabled_protos_list();
1435 set_disabled_heur_dissector_list();
1438 /* Build the column format array */
1439 build_column_format_array(&cfile.cinfo, prefs_p->num_cols, TRUE);
1441 if (rfilter != NULL) {
1442 if (!dfilter_compile(rfilter, &rfcode, &err_msg)) {
1443 cmdarg_err("%s", err_msg);
1449 cfile.rfcode = rfcode;
1451 if (dfilter != NULL) {
1452 if (!dfilter_compile(dfilter, &dfcode, &err_msg)) {
1453 cmdarg_err("%s", err_msg);
1459 cfile.dfcode = dfcode;
1461 if (print_packet_info) {
1462 /* If we're printing as text or PostScript, we have
1463 to create a print stream. */
1464 if (output_action == WRITE_TEXT) {
1465 switch (print_format) {
1468 print_stream = print_stream_text_stdio_new(stdout);
1472 print_stream = print_stream_ps_stdio_new(stdout);
1476 g_assert_not_reached();
1481 /* We have to dissect each packet if:
1483 we're printing information about each packet;
1485 we're using a read filter on the packets;
1487 we're using a display filter on the packets;
1489 we're using any taps that need dissection. */
1490 do_dissection = print_packet_info || rfcode || dfcode || tap_listeners_require_dissection();
1494 * We're reading a capture file.
1497 /* TODO: if tfshark is ever changed to give the user a choice of which
1498 open_routine reader to use, then the following needs to change. */
1499 if (cf_open(&cfile, cf_name, WTAP_TYPE_AUTO, FALSE, &err) != CF_OK) {
1504 /* Process the packets in the file */
1506 /* XXX - for now there is only 1 packet */
1507 err = load_cap_file(&cfile, 1, 0);
1509 CATCH(OutOfMemoryError) {
1513 "Sorry, but TFShark has to terminate now!\n"
1515 "Some infos / workarounds can be found at:\n"
1516 "https://wiki.wireshark.org/KnownBugs/OutOfMemory\n");
1522 /* We still dump out the results of taps, etc., as we might have
1523 read some packets; however, we exit with an error status. */
1530 if (cfile.frames != NULL) {
1531 free_frame_data_sequence(cfile.frames);
1532 cfile.frames = NULL;
1535 draw_tap_listeners(TRUE);
1536 funnel_dump_all_text_windows();
1537 epan_free(cfile.epan);
1540 output_fields_free(output_fields);
1541 output_fields = NULL;
1546 static const nstime_t *
1547 tfshark_get_frame_ts(void *data, guint32 frame_num)
1549 capture_file *cf = (capture_file *) data;
1551 if (ref && ref->num == frame_num)
1552 return &ref->abs_ts;
1554 if (prev_dis && prev_dis->num == frame_num)
1555 return &prev_dis->abs_ts;
1557 if (prev_cap && prev_cap->num == frame_num)
1558 return &prev_cap->abs_ts;
1561 frame_data *fd = frame_data_sequence_find(cf->frames, frame_num);
1563 return (fd) ? &fd->abs_ts : NULL;
1570 no_interface_name(void *data _U_, guint32 interface_id _U_)
1576 tfshark_epan_new(capture_file *cf)
1578 epan_t *epan = epan_new();
1581 epan->get_frame_ts = tfshark_get_frame_ts;
1582 epan->get_interface_name = no_interface_name;
1583 epan->get_user_comment = NULL;
1589 process_packet_first_pass(capture_file *cf, epan_dissect_t *edt,
1590 gint64 offset, struct wtap_pkthdr *whdr,
1597 /* The frame number of this packet is one more than the count of
1598 frames in this packet. */
1599 framenum = cf->count + 1;
1601 /* If we're not running a display filter and we're not printing any
1602 packet information, we don't need to do a dissection. This means
1603 that all packets can be marked as 'passed'. */
1606 frame_data_init(&fdlocal, framenum, whdr, offset, cum_bytes);
1608 /* If we're going to print packet information, or we're going to
1609 run a read filter, or display filter, or we're going to process taps, set up to
1610 do a dissection and do so. */
1612 /* If we're running a read filter, prime the epan_dissect_t with that
1615 epan_dissect_prime_dfilter(edt, cf->rfcode);
1617 frame_data_set_before_dissect(&fdlocal, &cf->elapsed_time,
1619 if (ref == &fdlocal) {
1620 ref_frame = fdlocal;
1624 epan_dissect_file_run(edt, whdr, file_tvbuff_new(&fdlocal, pd), &fdlocal, NULL);
1626 /* Run the read filter if we have one. */
1628 passed = dfilter_apply_edt(cf->rfcode, edt);
1632 frame_data_set_after_dissect(&fdlocal, &cum_bytes);
1633 prev_cap = prev_dis = frame_data_sequence_add(cf->frames, &fdlocal);
1635 /* If we're not doing dissection then there won't be any dependent frames.
1636 * More importantly, edt.pi.dependent_frames won't be initialized because
1637 * epan hasn't been initialized.
1640 g_slist_foreach(edt->pi.dependent_frames, find_and_mark_frame_depended_upon, cf->frames);
1645 /* if we don't add it to the frame_data_sequence, clean it up right now
1647 frame_data_destroy(&fdlocal);
1651 epan_dissect_reset(edt);
1657 process_packet_second_pass(capture_file *cf, epan_dissect_t *edt, frame_data *fdata,
1658 struct wtap_pkthdr *phdr, Buffer *buf,
1664 /* If we're not running a display filter and we're not printing any
1665 packet information, we don't need to do a dissection. This means
1666 that all packets can be marked as 'passed'. */
1669 /* If we're going to print packet information, or we're going to
1670 run a read filter, or we're going to process taps, set up to
1671 do a dissection and do so. */
1674 /* If we're running a display filter, prime the epan_dissect_t with that
1677 epan_dissect_prime_dfilter(edt, cf->dfcode);
1679 col_custom_prime_edt(edt, &cf->cinfo);
1681 /* We only need the columns if either
1682 1) some tap needs the columns
1684 2) we're printing packet info but we're *not* verbose; in verbose
1685 mode, we print the protocol tree, not the protocol summary.
1687 if ((tap_flags & TL_REQUIRES_COLUMNS) || (print_packet_info && print_summary))
1692 frame_data_set_before_dissect(fdata, &cf->elapsed_time,
1699 epan_dissect_file_run_with_taps(edt, phdr, file_tvbuff_new_buffer(fdata, buf), fdata, cinfo);
1701 /* Run the read/display filter if we have one. */
1703 passed = dfilter_apply_edt(cf->dfcode, edt);
1707 frame_data_set_after_dissect(fdata, &cum_bytes);
1708 /* Process this packet. */
1709 if (print_packet_info) {
1710 /* We're printing packet information; print the information for
1712 print_packet(cf, edt);
1714 /* The ANSI C standard does not appear to *require* that a line-buffered
1715 stream be flushed to the host environment whenever a newline is
1716 written, it just says that, on such a stream, characters "are
1717 intended to be transmitted to or from the host environment as a
1718 block when a new-line character is encountered".
1720 The Visual C++ 6.0 C implementation doesn't do what is intended;
1721 even if you set a stream to be line-buffered, it still doesn't
1722 flush the buffer at the end of every line.
1724 So, if the "-l" flag was specified, we flush the standard output
1725 at the end of a packet. This will do the right thing if we're
1726 printing packet summary lines, and, as we print the entire protocol
1727 tree for a single packet without waiting for anything to happen,
1728 it should be as good as line-buffered mode if we're printing
1729 protocol trees. (The whole reason for the "-l" flag in either
1730 tcpdump or TShark is to allow the output of a live capture to
1731 be piped to a program or script and to have that script see the
1732 information for the packet as soon as it's printed, rather than
1733 having to wait until a standard I/O buffer fills up. */
1737 if (ferror(stdout)) {
1738 show_print_file_io_error(errno);
1747 epan_dissect_reset(edt);
1749 return passed || fdata->flags.dependent_of_displayed;
1753 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)
1755 /* int bytes_read; */
1756 gint64 packet_size = wtap_file_size(cf->wth, err);
1758 *data_buffer = (guint8*)g_malloc((gsize)packet_size);
1759 /* bytes_read =*/ file_read(*data_buffer, (unsigned int)packet_size, cf->wth->fh);
1761 #if 0 /* no more filetap */
1762 if (bytes_read < 0) {
1763 *err = file_error(cf->wth->fh, err_info);
1765 *err = FTAP_ERR_SHORT_READ;
1767 } else if (bytes_read == 0) {
1768 /* Done with file, no error */
1773 /* XXX - SET FRAME SIZE EQUAL TO TOTAL FILE SIZE */
1774 file_phdr->caplen = (guint32)packet_size;
1775 file_phdr->len = (guint32)packet_size;
1778 * Set the packet encapsulation to the file's encapsulation
1779 * value; if that's not WTAP_ENCAP_PER_PACKET, it's the
1780 * right answer (and means that the read routine for this
1781 * capture file type doesn't have to set it), and if it
1782 * *is* WTAP_ENCAP_PER_PACKET, the caller needs to set it
1785 wth->phdr.pkt_encap = wth->file_encap;
1787 if (!wth->subtype_read(wth, err, err_info, data_offset)) {
1789 * If we didn't get an error indication, we read
1790 * the last packet. See if there's any deferred
1791 * error, as might, for example, occur if we're
1792 * reading a compressed file, and we got an error
1793 * reading compressed data from the file, but
1794 * got enough compressed data to decompress the
1795 * last packet of the file.
1798 *err = file_error(wth->fh, err_info);
1799 return FALSE; /* failure */
1803 * It makes no sense for the captured data length to be bigger
1804 * than the actual data length.
1806 if (wth->phdr.caplen > wth->phdr.len)
1807 wth->phdr.caplen = wth->phdr.len;
1810 * Make sure that it's not WTAP_ENCAP_PER_PACKET, as that
1811 * probably means the file has that encapsulation type
1812 * but the read routine didn't set this packet's
1813 * encapsulation type.
1815 g_assert(wth->phdr.pkt_encap != WTAP_ENCAP_PER_PACKET);
1818 return TRUE; /* success */
1822 load_cap_file(capture_file *cf, int max_packet_count, gint64 max_byte_count)
1826 gchar *err_info = NULL;
1827 gint64 data_offset = 0;
1828 gboolean filtering_tap_listeners;
1831 epan_dissect_t *edt = NULL;
1832 struct wtap_pkthdr file_phdr;
1835 if (print_packet_info) {
1836 if (!write_preamble(cf)) {
1838 show_print_file_io_error(err);
1843 /* Do we have any tap listeners with filters? */
1844 filtering_tap_listeners = have_filtering_tap_listeners();
1846 /* Get the union of the flags for all tap listeners. */
1847 tap_flags = union_of_tap_listener_flags();
1849 wtap_phdr_init(&file_phdr);
1851 /* XXX - TEMPORARY HACK TO ELF DISSECTOR */
1852 file_phdr.pkt_encap = 1234;
1854 if (perform_two_pass_analysis) {
1857 /* Allocate a frame_data_sequence for all the frames. */
1858 cf->frames = new_frame_data_sequence();
1860 if (do_dissection) {
1861 gboolean create_proto_tree = FALSE;
1863 /* If we're going to be applying a filter, we'll need to
1864 create a protocol tree against which to apply the filter. */
1866 create_proto_tree = TRUE;
1868 /* We're not going to display the protocol tree on this pass,
1869 so it's not going to be "visible". */
1870 edt = epan_dissect_new(cf->epan, create_proto_tree, FALSE);
1872 while (local_wtap_read(cf, &file_phdr, &err, &err_info, &data_offset, &raw_data)) {
1873 if (process_packet_first_pass(cf, edt, data_offset, &file_phdr/*wtap_phdr(cf->wth)*/,
1874 wtap_buf_ptr(cf->wth))) {
1876 /* Stop reading if we have the maximum number of packets;
1877 * When the -c option has not been used, max_packet_count
1878 * starts at 0, which practically means, never stop reading.
1879 * (unless we roll over max_packet_count ?)
1881 if ( (--max_packet_count == 0) || (max_byte_count != 0 && data_offset >= max_byte_count)) {
1882 err = 0; /* This is not an error */
1889 epan_dissect_free(edt);
1894 /* Close the sequential I/O side, to free up memory it requires. */
1895 wtap_sequential_close(cf->wth);
1898 /* Allow the protocol dissectors to free up memory that they
1899 * don't need after the sequential run-through of the packets. */
1900 postseq_cleanup_all_protocols();
1904 ws_buffer_init(&buf, 1500);
1906 if (do_dissection) {
1907 gboolean create_proto_tree;
1909 if (cf->dfcode || print_details || filtering_tap_listeners ||
1910 (tap_flags & TL_REQUIRES_PROTO_TREE) || have_custom_cols(&cf->cinfo))
1911 create_proto_tree = TRUE;
1913 create_proto_tree = FALSE;
1915 /* The protocol tree will be "visible", i.e., printed, only if we're
1916 printing packet details, which is true if we're printing stuff
1917 ("print_packet_info" is true) and we're in verbose mode
1918 ("packet_details" is true). */
1919 edt = epan_dissect_new(cf->epan, create_proto_tree, print_packet_info && print_details);
1922 for (framenum = 1; err == 0 && framenum <= cf->count; framenum++) {
1923 fdata = frame_data_sequence_find(cf->frames, framenum);
1925 if (wtap_seek_read(cf->wth, fdata->file_off,
1926 &buf, fdata->cap_len, &err, &err_info)) {
1927 process_packet_second_pass(cf, edt, fdata, &cf->phdr, &buf, tap_flags);
1930 process_packet_second_pass(cf, edt, fdata, &cf->phdr, &buf, tap_flags);
1935 epan_dissect_free(edt);
1939 ws_buffer_free(&buf);
1944 if (do_dissection) {
1945 gboolean create_proto_tree;
1947 if (cf->rfcode || cf->dfcode || print_details || filtering_tap_listeners ||
1948 (tap_flags & TL_REQUIRES_PROTO_TREE) || have_custom_cols(&cf->cinfo))
1949 create_proto_tree = TRUE;
1951 create_proto_tree = FALSE;
1953 /* The protocol tree will be "visible", i.e., printed, only if we're
1954 printing packet details, which is true if we're printing stuff
1955 ("print_packet_info" is true) and we're in verbose mode
1956 ("packet_details" is true). */
1957 edt = epan_dissect_new(cf->epan, create_proto_tree, print_packet_info && print_details);
1960 while (local_wtap_read(cf, &file_phdr, &err, &err_info, &data_offset, &raw_data)) {
1964 process_packet(cf, edt, data_offset, &file_phdr/*wtap_phdr(cf->wth)*/,
1965 raw_data, tap_flags);
1967 /* Stop reading if we have the maximum number of packets;
1968 * When the -c option has not been used, max_packet_count
1969 * starts at 0, which practically means, never stop reading.
1970 * (unless we roll over max_packet_count ?)
1972 if ( (--max_packet_count == 0) || (max_byte_count != 0 && data_offset >= max_byte_count)) {
1973 err = 0; /* This is not an error */
1979 epan_dissect_free(edt);
1984 wtap_phdr_cleanup(&file_phdr);
1988 * Print a message noting that the read failed somewhere along the line.
1990 * If we're printing packet data, and the standard output and error are
1991 * going to the same place, flush the standard output, so everything
1992 * buffered up is written, and then print a newline to the standard error
1993 * before printing the error message, to separate it from the packet
1994 * data. (Alas, that only works on UN*X; st_dev is meaningless, and
1995 * the _fstat() documentation at Microsoft doesn't indicate whether
1996 * st_ino is even supported.)
1999 if (print_packet_info) {
2000 ws_statb64 stat_stdout, stat_stderr;
2002 if (ws_fstat64(1, &stat_stdout) == 0 && ws_fstat64(2, &stat_stderr) == 0) {
2003 if (stat_stdout.st_dev == stat_stderr.st_dev &&
2004 stat_stdout.st_ino == stat_stderr.st_ino) {
2006 fprintf(stderr, "\n");
2014 case FTAP_ERR_UNSUPPORTED:
2015 cmdarg_err("The file \"%s\" contains record data that TFShark doesn't support.\n(%s)",
2016 cf->filename, err_info);
2020 case FTAP_ERR_UNSUPPORTED_ENCAP:
2021 cmdarg_err("The file \"%s\" has a packet with a network type that TFShark doesn't support.\n(%s)",
2022 cf->filename, err_info);
2026 case FTAP_ERR_CANT_READ:
2027 cmdarg_err("An attempt to read from the file \"%s\" failed for some unknown reason.",
2031 case FTAP_ERR_SHORT_READ:
2032 cmdarg_err("The file \"%s\" appears to have been cut short in the middle of a packet.",
2036 case FTAP_ERR_BAD_FILE:
2037 cmdarg_err("The file \"%s\" appears to be damaged or corrupt.\n(%s)",
2038 cf->filename, err_info);
2042 case FTAP_ERR_DECOMPRESS:
2043 cmdarg_err("The compressed file \"%s\" appears to be damaged or corrupt.\n"
2044 "(%s)", cf->filename, err_info);
2048 cmdarg_err("An error occurred while reading the file \"%s\": %s.",
2049 cf->filename, ftap_strerror(err));
2054 if (print_packet_info) {
2055 if (!write_finale()) {
2057 show_print_file_io_error(err);
2063 wtap_close(cf->wth);
2070 process_packet(capture_file *cf, epan_dissect_t *edt, gint64 offset,
2071 struct wtap_pkthdr *whdr, const guchar *pd, guint tap_flags)
2077 /* Count this packet. */
2080 /* If we're not running a display filter and we're not printing any
2081 packet information, we don't need to do a dissection. This means
2082 that all packets can be marked as 'passed'. */
2085 frame_data_init(&fdata, cf->count, whdr, offset, cum_bytes);
2087 /* If we're going to print packet information, or we're going to
2088 run a read filter, or we're going to process taps, set up to
2089 do a dissection and do so. */
2091 /* If we're running a filter, prime the epan_dissect_t with that
2094 epan_dissect_prime_dfilter(edt, cf->dfcode);
2096 col_custom_prime_edt(edt, &cf->cinfo);
2098 /* We only need the columns if either
2099 1) some tap needs the columns
2101 2) we're printing packet info but we're *not* verbose; in verbose
2102 mode, we print the protocol tree, not the protocol summary.
2104 3) there is a column mapped as an individual field */
2105 if ((tap_flags & TL_REQUIRES_COLUMNS) || (print_packet_info && print_summary) || output_fields_has_cols(output_fields))
2110 frame_data_set_before_dissect(&fdata, &cf->elapsed_time,
2112 if (ref == &fdata) {
2117 epan_dissect_file_run_with_taps(edt, whdr, frame_tvbuff_new(&fdata, pd), &fdata, cinfo);
2119 /* Run the filter if we have it. */
2121 passed = dfilter_apply_edt(cf->dfcode, edt);
2125 frame_data_set_after_dissect(&fdata, &cum_bytes);
2127 /* Process this packet. */
2128 if (print_packet_info) {
2129 /* We're printing packet information; print the information for
2131 print_packet(cf, edt);
2133 /* The ANSI C standard does not appear to *require* that a line-buffered
2134 stream be flushed to the host environment whenever a newline is
2135 written, it just says that, on such a stream, characters "are
2136 intended to be transmitted to or from the host environment as a
2137 block when a new-line character is encountered".
2139 The Visual C++ 6.0 C implementation doesn't do what is intended;
2140 even if you set a stream to be line-buffered, it still doesn't
2141 flush the buffer at the end of every line.
2143 So, if the "-l" flag was specified, we flush the standard output
2144 at the end of a packet. This will do the right thing if we're
2145 printing packet summary lines, and, as we print the entire protocol
2146 tree for a single packet without waiting for anything to happen,
2147 it should be as good as line-buffered mode if we're printing
2148 protocol trees. (The whole reason for the "-l" flag in either
2149 tcpdump or TShark is to allow the output of a live capture to
2150 be piped to a program or script and to have that script see the
2151 information for the packet as soon as it's printed, rather than
2152 having to wait until a standard I/O buffer fills up. */
2156 if (ferror(stdout)) {
2157 show_print_file_io_error(errno);
2162 /* this must be set after print_packet() [bug #8160] */
2163 prev_dis_frame = fdata;
2164 prev_dis = &prev_dis_frame;
2167 prev_cap_frame = fdata;
2168 prev_cap = &prev_cap_frame;
2171 epan_dissect_reset(edt);
2172 frame_data_destroy(&fdata);
2178 write_preamble(capture_file *cf)
2180 switch (output_action) {
2183 return print_preamble(print_stream, cf->filename, get_ws_vcs_version_info());
2187 write_pdml_preamble(stdout, cf->filename);
2189 write_psml_preamble(&cf->cinfo, stdout);
2190 return !ferror(stdout);
2193 write_fields_preamble(output_fields, stdout);
2194 return !ferror(stdout);
2197 g_assert_not_reached();
2203 get_line_buf(size_t len)
2205 static char *line_bufp = NULL;
2206 static size_t line_buf_len = 256;
2207 size_t new_line_buf_len;
2209 for (new_line_buf_len = line_buf_len; len > new_line_buf_len;
2210 new_line_buf_len *= 2)
2212 if (line_bufp == NULL) {
2213 line_buf_len = new_line_buf_len;
2214 line_bufp = (char *)g_malloc(line_buf_len + 1);
2216 if (new_line_buf_len > line_buf_len) {
2217 line_buf_len = new_line_buf_len;
2218 line_bufp = (char *)g_realloc(line_bufp, line_buf_len + 1);
2225 put_string(char *dest, const char *str, size_t str_len)
2227 memcpy(dest, str, str_len);
2228 dest[str_len] = '\0';
2232 put_spaces_string(char *dest, const char *str, size_t str_len, size_t str_with_spaces)
2236 for (i = str_len; i < str_with_spaces; i++)
2239 put_string(dest, str, str_len);
2243 put_string_spaces(char *dest, const char *str, size_t str_len, size_t str_with_spaces)
2247 memcpy(dest, str, str_len);
2248 for (i = str_len; i < str_with_spaces; i++)
2251 dest[str_with_spaces] = '\0';
2255 print_columns(capture_file *cf)
2262 col_item_t* col_item;
2264 line_bufp = get_line_buf(256);
2267 for (i = 0; i < cf->cinfo.num_cols; i++) {
2268 col_item = &cf->cinfo.columns[i];
2269 /* Skip columns not marked as visible. */
2270 if (!get_column_visible(i))
2272 switch (col_item->col_fmt) {
2274 column_len = col_len = strlen(col_item->col_data);
2277 line_bufp = get_line_buf(buf_offset + column_len);
2278 put_spaces_string(line_bufp + buf_offset, col_item->col_data, col_len, column_len);
2284 case COL_ABS_YMD_TIME: /* XXX - wider */
2285 case COL_ABS_YDOY_TIME: /* XXX - wider */
2287 case COL_UTC_YMD_TIME: /* XXX - wider */
2288 case COL_UTC_YDOY_TIME: /* XXX - wider */
2289 column_len = col_len = strlen(col_item->col_data);
2290 if (column_len < 10)
2292 line_bufp = get_line_buf(buf_offset + column_len);
2293 put_spaces_string(line_bufp + buf_offset, col_item->col_data, col_len, column_len);
2299 case COL_DEF_DL_SRC:
2300 case COL_RES_DL_SRC:
2301 case COL_UNRES_DL_SRC:
2302 case COL_DEF_NET_SRC:
2303 case COL_RES_NET_SRC:
2304 case COL_UNRES_NET_SRC:
2305 column_len = col_len = strlen(col_item->col_data);
2306 if (column_len < 12)
2308 line_bufp = get_line_buf(buf_offset + column_len);
2309 put_spaces_string(line_bufp + buf_offset, col_item->col_data, col_len, column_len);
2315 case COL_DEF_DL_DST:
2316 case COL_RES_DL_DST:
2317 case COL_UNRES_DL_DST:
2318 case COL_DEF_NET_DST:
2319 case COL_RES_NET_DST:
2320 case COL_UNRES_NET_DST:
2321 column_len = col_len = strlen(col_item->col_data);
2322 if (column_len < 12)
2324 line_bufp = get_line_buf(buf_offset + column_len);
2325 put_string_spaces(line_bufp + buf_offset, col_item->col_data, col_len, column_len);
2329 column_len = strlen(col_item->col_data);
2330 line_bufp = get_line_buf(buf_offset + column_len);
2331 put_string(line_bufp + buf_offset, col_item->col_data, column_len);
2334 buf_offset += column_len;
2335 if (i != cf->cinfo.num_cols - 1) {
2337 * This isn't the last column, so we need to print a
2338 * separator between this column and the next.
2340 * If we printed a network source and are printing a
2341 * network destination of the same type next, separate
2342 * them with " -> "; if we printed a network destination
2343 * and are printing a network source of the same type
2344 * next, separate them with " <- "; otherwise separate them
2347 * We add enough space to the buffer for " <- " or " -> ",
2348 * even if we're only adding " ".
2350 line_bufp = get_line_buf(buf_offset + 4);
2351 switch (col_item->col_fmt) {
2356 switch (cf->cinfo.columns[i+1].col_fmt) {
2361 put_string(line_bufp + buf_offset, " -> ", 4);
2366 put_string(line_bufp + buf_offset, " ", 1);
2372 case COL_DEF_DL_SRC:
2373 case COL_RES_DL_SRC:
2374 case COL_UNRES_DL_SRC:
2375 switch (cf->cinfo.columns[i+1].col_fmt) {
2377 case COL_DEF_DL_DST:
2378 case COL_RES_DL_DST:
2379 case COL_UNRES_DL_DST:
2380 put_string(line_bufp + buf_offset, " -> ", 4);
2385 put_string(line_bufp + buf_offset, " ", 1);
2391 case COL_DEF_NET_SRC:
2392 case COL_RES_NET_SRC:
2393 case COL_UNRES_NET_SRC:
2394 switch (cf->cinfo.columns[i+1].col_fmt) {
2396 case COL_DEF_NET_DST:
2397 case COL_RES_NET_DST:
2398 case COL_UNRES_NET_DST:
2399 put_string(line_bufp + buf_offset, " -> ", 4);
2404 put_string(line_bufp + buf_offset, " ", 1);
2413 switch (cf->cinfo.columns[i+1].col_fmt) {
2418 put_string(line_bufp + buf_offset, " <- ", 4);
2423 put_string(line_bufp + buf_offset, " ", 1);
2429 case COL_DEF_DL_DST:
2430 case COL_RES_DL_DST:
2431 case COL_UNRES_DL_DST:
2432 switch (cf->cinfo.columns[i+1].col_fmt) {
2434 case COL_DEF_DL_SRC:
2435 case COL_RES_DL_SRC:
2436 case COL_UNRES_DL_SRC:
2437 put_string(line_bufp + buf_offset, " <- ", 4);
2442 put_string(line_bufp + buf_offset, " ", 1);
2448 case COL_DEF_NET_DST:
2449 case COL_RES_NET_DST:
2450 case COL_UNRES_NET_DST:
2451 switch (cf->cinfo.columns[i+1].col_fmt) {
2453 case COL_DEF_NET_SRC:
2454 case COL_RES_NET_SRC:
2455 case COL_UNRES_NET_SRC:
2456 put_string(line_bufp + buf_offset, " <- ", 4);
2461 put_string(line_bufp + buf_offset, " ", 1);
2468 put_string(line_bufp + buf_offset, " ", 1);
2474 return print_line(print_stream, 0, line_bufp);
2478 print_packet(capture_file *cf, epan_dissect_t *edt)
2480 print_args_t print_args;
2482 if (print_summary || output_fields_has_cols(output_fields)) {
2483 /* Just fill in the columns. */
2484 epan_dissect_fill_in_columns(edt, FALSE, TRUE);
2486 if (print_summary) {
2487 /* Now print them. */
2488 switch (output_action) {
2491 if (!print_columns(cf))
2496 write_psml_columns(edt, stdout);
2497 return !ferror(stdout);
2498 case WRITE_FIELDS: /*No non-verbose "fields" format */
2499 g_assert_not_reached();
2504 if (print_details) {
2505 /* Print the information in the protocol tree. */
2506 switch (output_action) {
2509 /* Only initialize the fields that are actually used in proto_tree_print.
2510 * This is particularly important for .range, as that's heap memory which
2511 * we would otherwise have to g_free().
2512 print_args.to_file = TRUE;
2513 print_args.format = print_format;
2514 print_args.print_summary = print_summary;
2515 print_args.print_formfeed = FALSE;
2516 packet_range_init(&print_args.range, &cfile);
2518 print_args.print_hex = print_hex;
2519 print_args.print_dissections = print_details ? print_dissections_expanded : print_dissections_none;
2521 if (!proto_tree_print(&print_args, edt, output_only_tables, print_stream))
2524 if (!print_line(print_stream, 0, separator))
2530 write_pdml_proto_tree(edt, stdout);
2532 return !ferror(stdout);
2534 write_fields_proto_tree(output_fields, edt, &cf->cinfo, stdout);
2536 return !ferror(stdout);
2540 if (print_summary || print_details) {
2541 if (!print_line(print_stream, 0, ""))
2544 if (!print_hex_data(print_stream, edt))
2546 if (!print_line(print_stream, 0, separator))
2555 switch (output_action) {
2558 return print_finale(print_stream);
2562 write_pdml_finale(stdout);
2564 write_psml_finale(stdout);
2565 return !ferror(stdout);
2568 write_fields_finale(output_fields, stdout);
2569 return !ferror(stdout);
2572 g_assert_not_reached();
2578 cf_open(capture_file *cf, const char *fname, unsigned int type, gboolean is_tempfile, int *err)
2581 char err_msg[2048+1];
2583 /* The open isn't implemented yet. Fill in the information for this file. */
2585 /* Create new epan session for dissection. */
2586 epan_free(cf->epan);
2587 cf->epan = tfshark_epan_new(cf);
2589 cf->wth = NULL; /**** XXX - DOESN'T WORK RIGHT NOW!!!! */
2590 cf->f_datalen = 0; /* not used, but set it anyway */
2592 /* Set the file name because we need it to set the follow stream filter.
2593 XXX - is that still true? We need it for other reasons, though,
2595 cf->filename = g_strdup(fname);
2597 /* Indicate whether it's a permanent or temporary file. */
2598 cf->is_tempfile = is_tempfile;
2600 /* No user changes yet. */
2601 cf->unsaved_changes = FALSE;
2603 cf->cd_t = 0; /**** XXX - DOESN'T WORK RIGHT NOW!!!! */
2604 cf->open_type = type;
2606 cf->drops_known = FALSE;
2608 cf->snap = 0; /**** XXX - DOESN'T WORK RIGHT NOW!!!! */
2609 if (cf->snap == 0) {
2610 /* Snapshot length not known. */
2611 cf->has_snap = FALSE;
2614 cf->has_snap = TRUE;
2615 nstime_set_zero(&cf->elapsed_time);
2620 cf->state = FILE_READ_IN_PROGRESS;
2625 g_snprintf(err_msg, sizeof err_msg,
2626 cf_open_error_message(*err, err_info, FALSE, cf->cd_t), fname);
2627 cmdarg_err("%s", err_msg);
2632 show_print_file_io_error(int err)
2637 cmdarg_err("Not all the packets could be printed because there is "
2638 "no space left on the file system.");
2643 cmdarg_err("Not all the packets could be printed because you are "
2644 "too close to, or over your disk quota.");
2649 cmdarg_err("An error occurred while printing packets: %s.",
2656 cf_open_error_message(int err, gchar *err_info _U_, gboolean for_writing,
2660 /* static char errmsg_errno[1024+1]; */
2664 /* Wiretap error. */
2667 case FTAP_ERR_NOT_REGULAR_FILE:
2668 errmsg = "The file \"%s\" is a \"special file\" or socket or other non-regular file.";
2671 case FTAP_ERR_RANDOM_OPEN_PIPE:
2672 /* Seen only when opening a capture file for reading. */
2673 errmsg = "The file \"%s\" is a pipe or FIFO; TFShark can't read pipe or FIFO files in two-pass mode.";
2676 case FTAP_ERR_FILE_UNKNOWN_FORMAT:
2677 /* Seen only when opening a capture file for reading. */
2678 errmsg = "The file \"%s\" isn't a capture file in a format TFShark understands.";
2681 case FTAP_ERR_UNSUPPORTED:
2682 /* Seen only when opening a capture file for reading. */
2683 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2684 "The file \"%%s\" isn't a capture file in a format TFShark understands.\n"
2687 errmsg = errmsg_errno;
2690 case FTAP_ERR_CANT_WRITE_TO_PIPE:
2691 /* Seen only when opening a capture file for writing. */
2692 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2693 "The file \"%%s\" is a pipe, and \"%s\" capture files can't be "
2694 "written to a pipe.", ftap_file_type_subtype_short_string(file_type));
2695 errmsg = errmsg_errno;
2698 case FTAP_ERR_UNSUPPORTED_FILE_TYPE:
2699 /* Seen only when opening a capture file for writing. */
2700 errmsg = "TFShark doesn't support writing capture files in that format.";
2703 case FTAP_ERR_UNSUPPORTED_ENCAP:
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));
2709 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2710 "The file \"%%s\" is a capture for a network type that TFShark doesn't support.\n"
2714 errmsg = errmsg_errno;
2717 case FTAP_ERR_ENCAP_PER_RECORD_UNSUPPORTED:
2719 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2720 "TFShark can't save this capture as a \"%s\" file.",
2721 ftap_file_type_subtype_short_string(file_type));
2722 errmsg = errmsg_errno;
2724 errmsg = "The file \"%s\" is a capture for a network type that TFShark doesn't support.";
2727 case FTAP_ERR_BAD_FILE:
2728 /* Seen only when opening a capture file for reading. */
2729 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2730 "The file \"%%s\" appears to be damaged or corrupt.\n"
2733 errmsg = errmsg_errno;
2736 case FTAP_ERR_CANT_OPEN:
2738 errmsg = "The file \"%s\" could not be created for some unknown reason.";
2740 errmsg = "The file \"%s\" could not be opened for some unknown reason.";
2743 case FTAP_ERR_SHORT_READ:
2744 errmsg = "The file \"%s\" appears to have been cut short"
2745 " in the middle of a packet or other data.";
2748 case FTAP_ERR_SHORT_WRITE:
2749 errmsg = "A full header couldn't be written to the file \"%s\".";
2752 case FTAP_ERR_COMPRESSION_NOT_SUPPORTED:
2753 errmsg = "This file type cannot be written as a compressed file.";
2756 case FTAP_ERR_DECOMPRESS:
2757 /* Seen only when opening a capture file for reading. */
2758 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2759 "The compressed file \"%%s\" appears to be damaged or corrupt.\n"
2762 errmsg = errmsg_errno;
2766 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
2767 "The file \"%%s\" could not be %s: %s.",
2768 for_writing ? "created" : "opened",
2769 ftap_strerror(err));
2770 errmsg = errmsg_errno;
2775 errmsg = file_open_error_message(err, for_writing);
2780 * Open/create errors are reported with an console message in TFShark.
2783 open_failure_message(const char *filename, int err, gboolean for_writing)
2785 fprintf(stderr, "tfshark: ");
2786 fprintf(stderr, file_open_error_message(err, for_writing), filename);
2787 fprintf(stderr, "\n");
2792 * General errors are reported with an console message in TFShark.
2795 failure_message(const char *msg_format, va_list ap)
2797 fprintf(stderr, "tfshark: ");
2798 vfprintf(stderr, msg_format, ap);
2799 fprintf(stderr, "\n");
2803 * Read errors are reported with an console message in TFShark.
2806 read_failure_message(const char *filename, int err)
2808 cmdarg_err("An error occurred while reading from the file \"%s\": %s.",
2809 filename, g_strerror(err));
2813 * Write errors are reported with an console message in TFShark.
2816 write_failure_message(const char *filename, int err)
2818 cmdarg_err("An error occurred while writing to the file \"%s\": %s.",
2819 filename, g_strerror(err));
2823 * Report additional information for an error in command-line arguments.
2826 failure_message_cont(const char *msg_format, va_list ap)
2828 vfprintf(stderr, msg_format, ap);
2829 fprintf(stderr, "\n");
2833 * Editor modelines - https://www.wireshark.org/tools/modelines.html
2838 * indent-tabs-mode: nil
2841 * vi: set shiftwidth=2 tabstop=8 expandtab:
2842 * :indentSize=2:tabSize=8:noTabs=true: